CN211633024U - Multifunctional toilet power assisting chair - Google Patents

Abstract

The utility model provides a multi-functional helping hand chair like lavatory relates to seat technical field, and it includes: a seat supporting part, a seat part, a backrest part, a supporting part, a link mechanism, a pushing mechanism and a control mechanism; the seat supporting part is provided with a horizontal placing platform; the seat part is provided with a seat cavity and is arranged on the horizontal placing platform in a turnover way; the backrest part is arranged at one end of the seat part far away from the seat supporting part in a turnover way, and the backrest parts are vertically arranged relative to the horizontal placing table; the supporting parts comprise armpit supporting plates and linkage mechanisms; the connecting rod mechanism comprises a driving rod, a first connecting rod, a second connecting rod and a third connecting rod; the seat part is connected with the driving rod; the third connecting rod is a rack, the driving rod and the second connecting rod rotate along the rack, and the backrest part is connected with the first connecting rod; the pushing mechanism drives the driving rod to rotate, operation is convenient, and practicability is high. And the control mechanism controls the start and stop of the pushing mechanism to realize the turnover linkage of the seat part and the backrest part, so that the use, the popularization and the like of users are facilitated.

Description

A multifunctional toilet booster chair

technical field

The utility model relates to the technical field of seat devices, in particular to a multifunctional toilet-assisting chair.

Background technique

Mechanisms that help older people move around alone can help older people with different levels of aging to live alone. For the elderly, it is somewhat inconvenient to move in their daily life. Many elderly people live alone at home and often encounter difficulties in getting up, and they will also experience low back pain and leg numbness. With the aging of the population and the intensification of aging in China, the number of disabled elderly people and sick elderly people in China is increasing. In our daily life, we often see the wounded, the elderly and the critically ill. Because of their extremely weak physical strength, they are extremely inconvenient to move. Especially when going to the toilet, there is generally no support device in the toilet, which brings great inconvenience to them when they go to the toilet, so that people often need to help them to go to the toilet smoothly.

At present, although a few toilets are equipped with handles for support, because these handles are fixed on the wall or floor of the toilet, these people still cannot use the handles to squat or stand up smoothly. Sometimes, even if you can use the handle to squat, because the squat relies on your own gravity, it is almost effortless, but you still need strength to stand up, but these people are extremely weak and cannot use their own strength. stand up. For example, the Chinese patent number CN106235945A describes an intelligent power-assisted commode chair, which mainly relies on the front motor to control the lifting of the seat plate, giving the old man a boost to get up, and does not have a supporting effect on the upper body of the old man. During the process of getting up, If the leg strength of the old man is not enough, the body will slide down due to its own gravity, and the arm needs to be supported, otherwise it will easily cause an accident. To sum up, there is no device in the prior art that can completely and completely solve the problem of the wounded, the elderly and critically ill patients going to the toilet smoothly.

Utility model content

The utility model discloses a multifunctional toilet booster chair, which is convenient to operate and aims to improve the problem of inconvenience in toilet usage of the existing booster chair.

The utility model adopts the following scheme:

A multifunctional toilet booster chair, comprising: a seat support part, a seat part, a backrest part, a support part, a link mechanism, a push mechanism and a control mechanism; the seat support part has a horizontal placing table; the seat part is provided with a The seat cavity is adapted to the user's buttocks, and the seat portion is reversibly arranged on the horizontal placement platform, and the seat portion has an erect state vertically arranged on the horizontal placement platform and a horizontal placement on the horizontal placement platform. The flat state on the horizontal placing table; the backrest part is reversibly arranged at the end of the seat part away from the seat support part, when the seat part is in an upright state or a flat state, the backrest part Both of them are vertically arranged relative to the horizontal placing table for users to lean on; the support parts are arranged on the left and right sides of the backrest part to support the user's armpits; the support parts are included to support the armpits. The lower armpit support plate and the linkage mechanism for controlling the conversion between the use state and the avoidance state of the armpit support plate; the link mechanism at least comprises an active rod, a first link, a second link and a third link; the The seat part is connected with the active rod, so as to follow the active rod to move relatively; wherein, the third link is a frame, and the active rod and the second link rotate along the frame, so as to be arranged on the The seat part on the active rod is switched between the erect state and the lay state; the backrest part is connected with the first link, and the backrest part is in the erect state or the lay state on the seat part When they are placed, they are vertically arranged relative to the horizontal placement platform; the push mechanism drives the active rod to rotate along the third link, so that the seat portion is converted between the erected state and the flat state, corresponding to assisting the user to stand or sit. down; the control mechanism is used to control the start and stop of the push mechanism.

As a further improvement, the seat support includes a front support leg and a rear support leg, and at least four are provided to place the seat support stably; a beam is connected between the support legs, and the beam It is arranged at the top of each leg, and the horizontal platform is formed by enclosing the beams.

As a further improvement, the link mechanism is a parallelogram link mechanism, the third link is relatively extended and fixed on one of the front legs, and the active link and the second link are connected to the beam. fit, and the active rod is rotated to lie horizontally on the corresponding beam, so that the seat portion is in a flat state; one end of the active rod is connected to the first link, and the other end is connected to the third link The other end of the first connecting rod is connected to the second connecting rod, and the two ends of the second connecting rod are respectively connected with the first connecting rod and the third connecting rod, and the third connecting rod The other end is connected with the active rod to form the parallelogram linkage mechanism in linkage.

As a further improvement, when the seat portion is in a flat state, the link mechanism is substantially rectangular, and the first link and the third link are respectively perpendicular to the active link or the second link; When the seat part is in an upright state, the active rod, the first link, the second link and the third link are all arranged substantially vertically, and the first link and the third link are respectively connected with the The active rod or the second link is parallel.

As a further improvement, the armpit support plate is assembled on the backrest portion through the linkage mechanism, and the seat portion is in an upright state, and the linkage mechanism controls the armpit support plate to protrude relatively horizontally and lie horizontally. on the backrest part, so that the axillary support board is in a use state that can support the user's armpit; the seat part is in a flat state, and the linkage mechanism controls the axillary support board to be in a vertical direction relative to the rest. The backrest parts are placed in parallel, so that the armpit support plate is in an avoidance state that is relatively far away from the user.

As a further improvement, the linkage mechanism includes a frame arranged on the backrest portion, a support rod and a long connecting rod hingedly arranged at both ends of the frame, and connecting the support rod and the long connecting rod The short connecting rod; wherein, the armpit plate is arranged at the end of the support rod away from its hinge point, the long connecting rod is a stress rod, and the long connecting rod is provided with an escape groove for accommodating Passing through the support rod, so that the support rod and the long link intersect along the frame and avoid each other from rotating; the short link is hinged between the support rod and the long link and the long link is controlled by an external force, so that the long link drives the short link to rotate until it is accommodated in the escape groove and is perpendicular to the support rod, and the long link and the hinge point of the frame, the hinge point of the short link and the support rod, the hinge point of the long link and the short link, the three hinge points are in the same straight line position, at this time the support rod is relatively along the The horizontal direction protrudes and is placed on the backrest part, so that the axillary support plate is in a use state; corresponding to releasing the external force from the control of the long link, the support rod is subject to the axillary support plate itself arranged at its end Gravity drives the short link to rotate, and then drives the long link to rotate, until the support rod rests substantially in the vertical direction, so that the armpit plate is in an avoidance state.

As a further improvement, the front end surface where the front outrigger is located is provided with a footrest portion that can move up and down, and the footrest portion is linked with the support portion, so that the footrest portion is controlled to rise and fall, so that all The axillary support plate of the support portion is correspondingly switched between the use state and the avoidance state.

As a further improvement, a pull cord is connected between the support portion and the footrest portion, one end of the pull cord is connected to the long link, and the other end is connected to the backrest portion and the seat portion along the backrest portion and the seat portion. On the footrest portion, through the lifting and moving of the footrest portion, the pulling rope drives the long link to rotate along its hinge point with the frame.

As a further improvement, the pushing mechanism includes an electric push rod, and the electric push rod can be movably arranged on one side of the seat support; There is an installation rod, the electric push rod is hingedly arranged on the installation rod, and its output shaft is hinged to the active rod or the seat part, so as to push the seat part to move between the erect state and the laying state .

As a further improvement, the rear end of the installation rod is hinged to the bottom end of the rear leg, the front end of the installation rod is movably arranged relative to the front leg, and partially extends to the front side of the front leg; the installation rod The front end of the electric push rod is linked with the foot pedal part, so that the foot pedal part is controlled by the installation rod, the electric push rod is relatively extended or retracted, and the installation rod is pushed or pulled in the opposite direction via its output shaft. The hinge joint rotates, correspondingly driving the footrest to move down or up.

By adopting the above-mentioned technical scheme, the utility model can obtain the following technical effects:

In the toilet booster chair of the present application, the seat part with the seat cavity opened can be turned over and arranged on the seat support part, and the backrest part can be turned over and arranged on the seat part, so that the seat part can be switched between the upright state and the flat state, Corresponding to assisting the user to stand or sit down when going to the toilet, and the backrest part is always arranged vertically with the horizontal placing table for the user to lean on, which is convenient to operate and has strong practicability.

Further, the left and right sides of the backrest are provided with support parts for supporting the user's armpits, and the armpit plate of the support part is switched between the use state and the avoidance state under the control of the linkage mechanism, so that the seat part is in an erect state. When the user stands on the side of the seat part and the backrest part arranged relatively vertically, the armpit is placed on the axillary support plate that is relatively protruding in the horizontal direction and horizontally placed on the backrest part, so as to support the weight of the user's upper body. , to avoid accidents such as falls. When the seat portion is in a flat state, the user sits on the seat portion and leans against the backrest portion. At this time, the linkage mechanism controls the armpit support plate to be placed parallel to the backrest portion relative to each other in the vertical direction, so that the armpit support plate is relatively far away from each other. The user's avoidance state is convenient for the user to lean on the backrest after sitting down. The support part is relatively protruded and horizontally placed on the backrest part when in use, and is relatively avoided and retracted when not in use to reduce problems such as interference to users.

Further, the active rod of the link mechanism is connected with the seat portion, and the first link is connected with the backrest portion. The third link is a frame, and the active rod and the second link rotate along the frame, correspondingly, the seat portion arranged on the active rod is switched between the erect state and the laying state. And when the seat part is in an upright state or a flat state, the backrest part is vertically arranged relative to the horizontal placement platform, and the active rod is driven to rotate along the third link through the push mechanism, so that the seat part is converted between the upright state and the flat state. , corresponding to assist the user to stand or sit, and control the start and stop of the push mechanism through the control mechanism to realize the flip linkage between the seat part and the backrest part, which is convenient for users to use and popularize.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings required in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can also be obtained from these drawings without any creative effort.

1 is a schematic structural diagram of a power-assisted chair according to an embodiment of the present invention from a first perspective, wherein the seat portion is in an upright state;

2 is a schematic structural diagram of a power-assisted chair according to an embodiment of the present invention from a second viewing angle, wherein the seat portion is in a flat state;

3 is a schematic structural diagram of FIG. 1 from another perspective, wherein G represents the position of the center of gravity of the user;

4 is a schematic structural diagram of FIG. 1 under other viewing angles;

Fig. 5 is a partial enlarged view of region I in Fig. 4;

6 is a schematic structural diagram of FIG. 2 under other viewing angles;

Fig. 7 is the partial enlarged view of II region in Fig. 6;

8 is a schematic structural diagram of the support portion of the power-assisted chair according to the embodiment of the present invention, wherein the direction of the arrow indicates the direction of the pulling force on the long connecting rod;

9 is a schematic structural diagram of FIG. 3 in other embodiments;

FIG. 10 is a schematic structural diagram of FIG. 9 under another viewing angle;

11 is a schematic structural diagram of the power-assisted chair according to the embodiment of the present invention from a third perspective, wherein the seat portion is in a flat state;

FIG. 12 is a schematic structural diagram of the seat portion in an upright state in FIG. 11;

13 is a view of the use state of the power assist chair according to the embodiment of the present invention, wherein the arrows indicate the telescopic direction of the electric push rod, and G indicates the position of the user's center of gravity.

Icons: 1-seat support; 11-horizontal platform; 12-outrigger; 121-front outrigger; 122-rear outrigger; 13-beam; 14-installation rod; 141-guide slot; 2-seat ;21-seat cavity; 3-backrest; 4-support; 41-axillary plate; 42-linkage; 421-frame; 422-support rod; 423-long link; 4231-avoidance groove;424 -Short connecting rod; 425-limiting rod; 426-connecting rod; 43-shrapnel sleeve; 5-linkage mechanism; 51-active rod; 52-first link; 53-second link; 54- 3rd connecting rod; 6-Push mechanism; 61-Electric push rod; 7-Foot part; 71-Pedal; 72-Pallet; 73-Positioning column; 8-Sliding assembly; 81-Slide rail; 82-Slide seat ; 9 - drawstring; 10 - spring.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments of the present invention are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise" etc. Or the positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed in a specific orientation and operation, so it cannot be construed as a limitation to the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integration; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features The features are not in direct contact but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

Example

1 to 8 , the present embodiment provides a multifunctional toilet-assisting chair, including: a seat support part 1 , a seat part 2 , a backrest part 3 , a support part 4 , a link mechanism 5 , and a push mechanism 6 and a control mechanism (not shown).

Wherein, the seat support 1 has a horizontal placing platform 11 . In this embodiment, the seat support 1 includes a front support leg 121 and a rear support leg 122, and at least four are provided to place the seat support 1 stably. Cross beams 13 are connected between the outriggers 12 , the cross beams 13 are arranged at the top of each outrigger 12 , and the horizontal placement platform 11 is formed by enclosing the cross beams 13 . Preferably, each of the legs 12 and the beam 13 are made of aluminum profiles, which are lightweight and easy to disassemble and carry.

The seat portion 2 is rotatably disposed on the horizontal placing table 11 , and a seat cavity 21 is defined on the seat portion 2 to fit the user's buttocks. In addition, the seat portion 2 has an upright state in which it is vertically arranged on the horizontal placement table 11 and a horizontal placement state in which it is horizontally placed on the horizontal placement table 11 . Wherein, the seat cavity 21 is generally located in the middle position of the end surface of the seat portion 2 . In addition, a container (not shown) for collecting excrement after the user goes to the toilet is corresponding to the seat cavity 21 on the seat part 2 in the flat state in the seat support part 1, so that the power-assisting chair of the present application is used for the user to e.g. Assisting the user to sit and use the toilet and assisting the user to stand after going to the toilet.

The backrest portion 3 is rotatably arranged at one end of the seat portion 2 away from the seat support portion 1. When the seat portion 2 is in an upright state or a flat state, the backrest portion 3 is vertically arranged relative to the horizontal platform 11 for the user to use. Rely on use. The seat portion 2 can be switched between the upright state and the laying state through the reversible engagement between the seat portion 2 that is reversibly arranged on the seat support portion 1 and the backrest portion 3 that is reversibly arranged on the seat portion 2, corresponding to It assists the user to stand or sit down, and the backrest part 3 is always vertically arranged with the horizontal placing table 11 for the user to lean on, which is convenient to operate and has strong practicability. It should be noted that the flipped seat part 2 and the backrest part 3 are the unfolding and rotating functions of existing folding chairs, which can be realized by providing connecting pieces such as hinges or living hinges between them. It is not repeated here. The turning control of the seat portion 2 by the link mechanism 5 and the push mechanism 6 will be described in detail later.

The support parts 4 are arranged on the left and right sides of the backrest part 3 to support the user's underarms. Each of the support parts 4 includes an armpit support plate 41 for supporting the underarm and a linkage mechanism 42 for controlling the transition of the armpit support plate 41 between the use state and the avoidance state. The armpit support plate 41 is assembled on the backrest portion 3 through the linkage mechanism 42, the seat portion 2 is in an upright state, and the linkage mechanism 42 controls the armpit support plate 41 to protrude relatively in the horizontal direction and is placed on the backrest portion 3, so that the armpit support plate 41 is placed horizontally on the backrest portion 3. 41 is in a state of use that can support the user's armpit. The seat portion 2 is in a flat state, and the linkage mechanism 42 controls the armpit support plate 41 to be placed in parallel with the backrest portion 3 in the vertical direction, so that the armpit support plate 41 is in an avoidance state relatively far from the user. Wherein, the support portion 4 is relatively protruded and placed horizontally on the backrest portion 3 when in use, and is relatively avoided and recovered when not in use. When the seat portion 2 is in an upright state, the user stands on the side of the seat portion 2 and the backrest portion 3 that are arranged relatively vertically, and is placed on the armpit of the backrest portion 3 that is relatively protruding in the horizontal direction through the armpit. The support plate 41 is used to support the weight of the user's upper body and avoid accidents such as falling. When the seat portion 2 is in a flat state, the user sits on the seat portion 2 and leans against the backrest portion 3, and the linkage mechanism 42 controls the armpit support plate 41 to be placed parallel to the backrest portion 3 in the vertical direction, so that the The armpit support plate 41 is in an avoidance state relatively away from the user, so that the user can lean on the backrest portion 3 after sitting down.

Specifically, the seat part 2 and the backrest part 3 are arranged in a reverse manner in this way. The link mechanism 5 includes at least an active rod 51 , a first link 52 , a second link 53 and a third link 54 . The seat portion 2 is connected to the active rod 51 so as to follow the active rod 51 to move relatively. The third link 54 is a frame in the link mechanism 5, and the active rod 51 and the second link 53 rotate along the frame 421, corresponding to the seat part 2 arranged on the active rod 51 in the upright state and the flat state. convert between. The backrest portion 3 is connected with the first link 52, and when the seat portion 2 is in an upright state or a flat state, the backrest portion 3 is vertically arranged relative to the horizontal placing table 11, and the driving mechanism 6 drives the active rod 51 along the first The rotation of the three connecting rods 54 makes the seat part 2 switch between the upright state and the flat state, corresponding to assisting the user to stand or sit down, and the control mechanism is used to control the start and stop of the push mechanism 6, thereby realizing the seat part 2 and the backrest Part 3 flip linkage. The specific settings of the push rod mechanism and the control mechanism will be described in further detail later.

Furthermore, the link mechanism 5 is a parallelogram link mechanism 5 . The third link 54 is relatively extended and fixed on one of the front legs 121 to serve as a fixed frame in the link mechanism 5 . The active rod 51 is a force-receiving rod in the link mechanism 5, and the active rod 51 and the second connecting rod 53 are adapted to the beam 13, so that the active rod 51 is acted by an external force to rotate to be horizontally placed on the corresponding beam 13, Thereby, the seat portion 2 is driven to be in a flat state. In this embodiment, one end of the active rod 51 is connected to the first connecting rod 52 , and the other end is connected to the third connecting rod 54 . The other end of the first connecting rod 52 is connected to the second connecting rod 53, the two ends of the second connecting rod 53 are respectively connected with the first connecting rod 52 and the third connecting rod 54, and the other end of the third connecting rod 54 is connected with the driving rod 51 is connected to form a parallelogram linkage mechanism 5 in linkage. Preferably, the active rod 51 , the first link 52 , the second link 53 , and the third link 54 are all hinged to each other through a rotation pair. And the link mechanism 5 is a double rocker link mechanism 5, the active rod 51 and the second link 53 are long sides, and the active rod 51 and the second link 53 are both rockers, and the first link 52 corresponds to the connection. rod to realize the efficient linkage of the four-bar linkage mechanism 5 .

In this embodiment, when the seat portion 2 is in a flat state, the link mechanism 5 is substantially rectangular, and the first link 52 and the third link 54 are perpendicular to the active rod 51 or the second link 53 respectively. When the seat portion 2 is in an upright state, the active rod 51 , the first link 52 , the second link 53 and the third link 54 are all arranged substantially vertically, and the first link 52 and the third link 54 are respectively connected to the active rod 52 . The rod 51 or the second link 53 is parallel. Wherein, each hinge point of the four-bar linkage mechanism 5 is respectively and at most arranged at the end position of one of the rod bodies, so that when the link mechanism 5 rotates to drive the seat portion 2 to be in an upright state, the length of each rod body is determined by the length of the hinge point one by one. The arrangement is sufficient to make the rod bodies between the link mechanisms 5 substantially vertically parallel, thereby ensuring that the first rod body is in a relatively vertical arrangement in the two different states of the seat portion 2, so that the connection is arranged on the first rod body. The backrest part 3 on one side is vertically arranged relative to the horizontal placing table 11 when the seat part 2 is in two different states.

Please refer to FIG. 2 and FIG. 6 , the power assist chair of the present application has two link mechanisms 5 , which are respectively disposed on the left and right sides of the horizontal placing table 11 . Correspondingly, there are two pushing mechanisms 6 , and each link mechanism 5 is driven to operate independently. In this embodiment, the seat portion 2 is connected and fixed between the two active rods 51 so as to move with the active rods 51 . The seat portion 2 has a substantially rectangular shape and is used by the user to sit down. Wherein, a transverse rod is connected between the two first links 52, the backrest portion 3 is vertically arranged on the transverse rod and is arranged in parallel with the first link 52, and is rotated through the link mechanism 5, and the backrest portion 3 and the A connecting rod 52 is kept parallel to each other, so that the backrest portion 3 is vertically arranged relative to the horizontal placing table 11 for the user to lean on.

Further, the transverse rod is arranged to extend outward along the first link 52 , and an armrest portion for the user to grasp is disposed at the extension. The armrest is equipped with a button switch, which is convenient for users to control and use. The push button switch is electrically connected with the control mechanism, so as to control the telescopic push of the push mechanism 6 . It should be noted that the push button switch, the control mechanism and the push mechanism 6 are all electrically connected, and the telescopic movement of the electric push rod 61 in the push mechanism 6 is further controlled by the push button switch, so as to realize the seat portion 2, the backrest portion 3 and the Linkage control between foot pedals 7.

More preferably, the seat portion 2 defines a seat cavity 21 which is adapted to the user's buttocks, and the seat cavity 21 is located approximately in the middle of the end surface of the seat portion 2 . In addition, a container (not shown) for collecting excrement after the user goes to the toilet is corresponding to the seat cavity 21 on the seat part 2 in the flat state in the seat support part 1, so that the power-assisted chair of the present application is used for the user such as: Assisting the user to sit and use the toilet and assisting the user to stand after going to the toilet.

Please refer to FIGS. 3 , 4 , 6 and 8 , the linkage mechanism 42 includes a frame 421 arranged on the backrest 3 , a support rod 422 and a long link 423 hingedly arranged at both ends of the frame 421 , and a connection The short link 424 of the support rod 422 and the long link 423 is provided. Wherein, the armpit plate 41 is disposed at the end of the support rod 422 away from its hinge point, and the long link 423 is provided with an escape groove 4231 for accommodating the short link 424 and passing through the support rod 422, so that the support rod 422 and the The long links 423 cross between the frames 421 and rotate to avoid each other. The short connecting rod 424 is hinged between the support rod 422 and the long connecting rod 423, and the long connecting rod 423 is a force-bearing rod, and the long connecting rod 423 is controlled by an external force, so that the long connecting rod 423 drives the short connecting rod 424 to rotate to the capacity It is placed in the escape groove 4231 and is perpendicular to the support rod 422 . When the long link 423 is pulled by the external force and rotates along its hinge point with the frame 421 to the hinge point of the long link 423 and the frame 421, the short link 424 and the support rod 422, the long link 423 and the The hinge points of the short link 424, the three hinge points are in the same straight line position, so that the linkage mechanism 42 is at the dead center position. Plate 41 is in use. Since the linkage mechanism 42 is at the dead center position at this time, the armpit support plate 41 on the support rod 422 can bear the relatively large pressing force provided by the user's armpit. Until the pulling of the long connecting rod 423 by the external force is released, the support rod 422 is subject to its own gravity by the armpit plate 41 disposed at its end, thereby driving the short connecting rod 424 to rotate, and then driving the long connecting rod 423 to rotate until the support rod 422 is roughly vertical. Stand still in the direction so that the axillary support plate 41 is in the avoidance state.

Specifically, the length of the avoidance groove 4231 is at least greater than the sum of the length of the short link 424 and the width of the support rod 422, so that the short link 424 can be accommodated in the avoidance groove 4231, pass through the avoidance groove 4231 and connect with the long link 423. The rods 423 cross between the racks 421 and avoid the supporting rods 422 that rotate from each other. When the linkage mechanism 42 is at the dead center position, the supporting rod 422 drives the short link 424 to be accommodated in the avoidance groove 4231, and the long link 423 and the The hinge point of the frame 421 , the hinge point of the short link 424 and the support rod 422 , the hinge point of the long link 423 and the short link 424 , the three hinge points are in the same straight line position. It should be noted that, in other embodiments, the long link 423 may also be composed of two plates hinged on the two outer end surfaces of the same end of the frame 421 respectively, and a gap is formed between the two plates. It is provided for the support rod 422 to pass through and can accommodate a short connecting rod 424 with one end hinged on the inner end surface of the other end of the two plates, so as to realize the relative rotation of the linkage rod body to the dead center position, which is beneficial to the relative limit of the support rod 422 in the pressing direction. bit support.

Further, one end of the frame 421 is provided with a limit rod 425 along the vertical direction, and the limit rod 425 is used for abutting against and supporting the long link 423 in the use state. The limit rod 425 is vertically arranged on one side of the hinge point between the frame 421 and the long link 423, so that the long link 423 at the dead center just abuts on the limit rod 425, so as to prevent the external force from continuing to pull the long link 423 is rotated (counterclockwise in the figure), so as to stabilize the support and use of the axillary support plate 41.

Preferably, the upper end surface of the armpit support plate 41 is in an arc suitable for the user's armpit, which is ergonomic and improves the comfort of the armpit support. In this embodiment, the height of the armpit support plate 41 relative to the support rod 422 is adjustable, the armpit support plate 41 is assembled on one end of the support rod 422 through a spring-type sleeve 42, and is arranged on the support rod 422 through the sleeve, and the armpit support plate 41 It is connected to the elastic piece, and the elastic piece is relatively sleeved in the sleeve to realize the height adjustment between the armpit support plate 41 and the support rod 422, which is suitable for users of different heights and has strong applicability. It should be noted that, in other embodiments, it can also be implemented by means of a telescopic rod or an adjusting member.

Please refer to FIG. 2 , FIG. 4 , FIG. 6 , FIG. 9 and FIG. 10 , the front end surface where the front outrigger 121 is located is provided with a footrest portion 7 that can move up and down. Wherein, the footrest portion 7 is linked with the support portion 4, so that by controlling the lifting and lowering of the footrest portion 7, the armpit plate 41 of the support portion 4 can be switched between the use state and the avoidance state.

Specifically, the mutual linkage between the footrest portion 7 and the support portion 4 is realized in this way. A pull rope 9 is connected between the support part 4 and the footrest part 7 , one end of the pull rope 9 is connected to the long link 423 , and the other end is connected to the footrest part 7 along the backrest part 3 and the seat part 2 . The up-and-down movement of the part 7 causes the pulling rope 9 to drive the long link 423 to rotate along its hinge point with the frame 421 , correspondingly, the support rod 422 drives the armpit plate 41 to switch between the use state and the avoidance state. In the present embodiment, the footrest portion 7 includes an L-shaped pedal 71 and a backboard 72 . The backboard 72 is arranged relatively vertically, and between the backboard 72 and the seat support portion 1 is provided a sliding assembly 8 that drives the footrest portion 7 to move up and down in the vertical direction. The sliding assembly 8 includes a sliding rail 81 vertically disposed on the seat stay 1 and a sliding seat 82 slidably disposed on the sliding rail 81 , and the backboard 72 is fixedly connected to the sliding seat 82 . A spring 10 is provided on the lower end surface of the pedal 71, and the spring 10 is in contact with the pedal 71 to provide the elastic force for the footrest 7 to move up and down in the vertical direction, thereby driving the footrest 7 to move upward. When the pedal 71 is not subjected to the downward pressing force provided by the user when standing, under the elastic force of the spring 10, the pedal 71 is driven by the sliding seat 82 to move up and down along the sliding rail 81 until it reaches a certain height. At this time, the pull rope 9 The pulling force of the long connecting rod 423 is not provided, and under the action of the own gravity of the armpit support plate 41 at one end of the support plate, the armpit support plate 41 is in an avoidance state.

More preferably, the pulling rope 9 is a steel wire rope. The wire rope has a certain elastic force and rigidity, and is switched between the upright state and the flat state through the seat portion 2 , and the wire rope is always in a stretched state to provide tension for the linkage between the footrest portion 7 and the support portion 4 . In this embodiment, one end of the wire rope is fixedly connected to the footrest portion 7, and the other end is arranged along the outer frame of the power chair until it is connected to the long link 423 of the support portion 4, and is fixedly connected to the long link 423. One side of the hinge point between it and the frame 421, so that the wire rope that is always in a tight state provides a pulling force for the rotation of the long link 423 when the footrest 7 is subjected to an external pressing force (the pedaling force of the user's feet). The linkage mechanism 42 is rotated to the dead center position, and the armpit support plate 41 is in the use state. When the footrest portion 7 is not subjected to external pressing force, the footrest portion 7 moves upward under the push of the spring 10, which releases the pulling force of the wire rope on the long link 423 (the force of moving to the dead center position), so that the linkage mechanism 42 is in the The armpit support plate 41 rotates relatively under the action of gravity, and the armpit support plate 41 is in an avoidance state.

It should be noted that the arrangement of the pull rope 9 on the outer frame of the power assist chair can be achieved by correspondingly opening guide holes (not shown) on the outer frame of the power assist chair, and the pull rope 9 is passed through each guide hole to realize A tight connection between the footrest 7 and the long link 423 . It is also possible that guide wheels are respectively provided along the pulling path of the pull rope 9, and the pull rope 9 is closely arranged on the guide end surface of each guide wheel, so that the pull rope 9 can be placed between the footrest portion 7 and the long link 423. The connection of the corresponding guide pulls the long connecting rod 423.

Further, the two supporting parts 4 are linked by connecting rods 426, wherein the connecting rods 426 are connected between the two long connecting rods 423, so that the two supporting parts 4 are in the use state or avoidance state synchronously. Preferably, the connecting rod 426 is disposed at one end of the two long links 423 away from the hinge point with the frame 421 , and one end of the pulling rope 9 is tied to the connecting rod 426 , thereby driving the long connecting rod 423 to rotate by pulling the connecting rod 426 .

Referring to FIGS. 2 , 4 , 6 , 11 and 12 , in other embodiments, the push mechanism 6 drives the active rod 51 to rotate along the third link 54 , wherein the push mechanism 6 includes an electric push rod 61 . The electric push rod 61 is movably arranged on one side of the seat stay 1 . A mounting rod 14 is placed horizontally between the front leg 121 and the rear leg 122 on the same side, and the electric push rod 61 is hingedly arranged on the mounting rod 14, and its output shaft is hinged to the active rod 51 or the seat portion 2, thereby The seat portion 2 is pushed to move between the erected state and the laid state. In this embodiment, the output shaft of the electric push rod 61 is hinged to the active rod 51 , and the electric push rod 61 moves telescopically to push the active rod 51 to drive the seat portion 2 to rotate along the hinge point between the electric push rod 61 and the third link 54 , so that the seat The part 2 is flipped and switched between the erect state and the lay state. The hinge point of the output shaft and the active rod 51 is generally located in the middle position of the active rod 51, and the hinge point of the electric push rod 61 and the installation rod 14 is generally located in the middle position of the installation rod 14, so as to push more effortlessly. Moreover, the electric push rod 61 and the active rod 51 are hingedly arranged to ensure that the active rod 51 will not interfere with the electric push rod 61 during the rotation process.

Further, the rear end of the mounting rod 14 is hinged to the bottom end of the rear leg 122 , and the front end thereof is movably arranged relative to the front leg 121 and partially extends to the front side of the front leg 121 . It can be understood that the mounting rod 14 is arranged on the outer side of the outrigger 12 to avoid interference between the extended end of the mounting rod 14 and the front outrigger 121 , affecting the distance between the mounting rod 14 and the rear outrigger 122 . Rotation at the hinge point. The mounting rod 14 is movably hinged at the bottom end of the rear leg 122, so that the electric push rod 61 disposed on the mounting rod 14 is electrically One end of the output shaft of the push rod 61 is fixed relative to the limit, so that when the electric push rod 61 is telescopically driven, the end of the electric push rod 61 away from the output shaft reversely pushes or pulls the mounting rod 14 to rotate along its hinge until the mounting rod 14 is pushed. When abutting on the ground, the electric push rod 61 under extension driving drives the active rod 51 to rotate in the positive direction along one end of the output shaft through the supporting force of the ground, thereby realizing the state switching of the seat portion 2 .

Preferably, the front end surface where the front leg 121 is located is provided with a footrest portion 7 that can move up and down. And the front end of the installation rod 14 is linked with the footrest part 7, so that the footrest part 7 is controlled by the installation rod 14, the electric push rod 61 is relatively extended or retracted, and the installation rod 14 is pushed or pulled in the opposite direction through its output shaft. The hinge joint with the rear outrigger 122 rotates, correspondingly drives the footrest 7 to move down or up. In this embodiment, the seat part 2 in the upright state and the backrest part 3 arranged at one end of the seat part 2 and vertically arranged on the horizontal platform 11 are both located on the beam 13 between the two front legs 121, corresponding to It is arranged on the same side as the footrest part 7, so that it is convenient for users to stand and use. Under the reverse push or pull of the electric push rod 61, the installation rod 14 rotates relatively along its rear end, so that the footrest 7 linked with the front end of the installation rod 14 moves vertically up and down, so as to be lowered and placed on the ground. It is used by the user to step on, or adjust the height of the legs of the user in the sitting state relative to the upward movement.

Specifically, the front end of the mounting rod 14 is provided with a guide groove 141 along the length direction of the rod body, and the footrest 7 correspondingly protrudes with a positioning post 73 accommodated in the guide groove 141 . The mounting rod 14 rotates relatively to drive the positioning column 73 to move back and forth along the guide groove 141 , thereby driving the footrest 7 to move up and down. Wherein, the length of the guide groove 141 can at least accommodate the relative movement of the positioning column 73 in the guide groove 141 in the ground position and the footrest portion 7 rising to a certain height position.

The working mode of the toilet booster chair of this embodiment is as follows (specifically shown in Figure 13):

When the user is not using it, the electric push rod 61 extends and drives the active rod 51 to drive the seat part 2 and the backrest part 3 to be arranged in a relatively vertical position, and the pedal part 7 on the same side is pushed by the electric push rod 61 in the opposite direction. The mounting rod 14 is driven to drive the footrest 7 to descend to the ground position. At this time, the pull rope 9 is driven by the footrest 7 to pull the long link 423 to provide external pulling force for the long link 423 to rotate to the dead center position. support.

When the user uses the seat, he/she stands on the footrest part 7 and leans on the seat part 2 and the backrest part 3, and at the same time, the underarm is placed and supported on the armpit plate 41. Actuating the electric push rod 61 causes the electric push rod 61 to shrink and drive, at this time, the mounting rod 14 is relatively fixed under the action of gravity provided by the user's feet, thereby driving the seat portion 2 to turn over from the erect state to the flat state through the output shaft, and the back The leaning portion 3 is vertically arranged relative to the horizontal placing table 11 for the user to continue to lean on and use.

Until the seat part 2 is turned over to the flat state, at this time the user's center of gravity is transferred to the seat part 2, so that the electric push rod 61 on the mounting rod 14 is in the flat state on the seat part 2 and the user sits on the seat part 2 to provide When corresponding to the gravity, one end of the output shaft of the electric push rod 61 is fixed relative to the limit, so that when the electric push rod 61 continues to shrink and drive, the end of the electric push rod 61 away from the output shaft reversely pulls the installation rod 14 along the hinge point of its rear end. Rotation drives the footrest 7 linked with the front end of the installation rod 14 to move relatively upward to adjust the height of the legs of the user in the sitting state. After adjusting the appropriate sitting posture, the electric push rod 61 is stopped. At this time, the pull cord 9 releases the external pulling force on the long link 423, so that the armpit support plate 41 returns to the avoidance state.

When the user needs to stand, start the electric push rod 61 to make the electric push rod 61 extend and drive, and the end of the electric push rod 61 away from the output shaft reversely pushes the installation rod 14 to rotate along the hinge point of its rear end, and drives the front end of the installation rod 14. The interlocking footrest 7 moves relatively downward until the mounting rod 14 is pushed against the ground, and through the support force of the ground, the electric push rod 61 in the extension drive drives the active rod 51 to rotate in the positive direction along one end of the output shaft , to drive the seat part 2 to be turned upside down, so that the user can stand up, while the footrest part 7 is pressed to the ground. At this time, the armpit support plate 41 is stretched and pulled back to the use state for the user to stand up. Correspondingly, the seat part 2 , the backrest part 3 and the footrest part 7 are all located at the initial position when the user is not using it.

The above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present utility model belong to the protection scope of the present utility model.

Claims (10)

1. A multi-functional power-assisted chair like lavatory which characterized in that includes:

a seat support part (1) having a horizontal placement platform (11);

the seat part (2) is provided with a seat cavity (21) matched with the buttocks of a user, the seat part (2) can be arranged on the horizontal placing table (11) in a turnover mode, and the seat part (2) has a vertical state vertically arranged on the horizontal placing table (11) and a horizontal state horizontally arranged on the horizontal placing table (11);

the backrest part (3) is arranged at one end, far away from the seat supporting part (1), of the seat part (2) in a turnover mode, and when the seat part (2) is in a vertical state or a horizontal state, the backrest parts (3) are vertically arranged relative to the horizontal placing platform (11) so as to be leaned by a user;

support parts (4) which are arranged on the left and right sides of the backrest part (3) and are used for supporting the armpits of a user; the supporting parts (4) comprise armpit supporting plates (41) used for supporting armpits and linkage mechanisms (42) used for controlling the armpit supporting plates (41) to be switched between a use state and an avoiding state;

a link mechanism (5) including at least an active lever (51), a first link (52), a second link (53), and a third link (54); the seat part (2) is connected with the active rod (51) so as to move relatively along with the active rod (51); wherein the third connecting rod (54) is a frame, the driving rod (51) and the second connecting rod (53) rotate along the frame (421), and correspondingly, the seat part (2) arranged on the driving rod (51) is switched between an upright state and a flat state; the backrest part (3) is connected with the first connecting rod (52), and the backrest part (3) is vertically arranged relative to the horizontal placing table (11) when the seat part (2) is in a vertical state or a horizontal state;

the pushing mechanism (6) drives the active rod (51) to rotate along the third connecting rod (54), so that the seat part (2) is switched between an upright state and a flat state, and the user is correspondingly assisted to stand or sit down;

and the control mechanism is used for controlling the starting and stopping of the pushing mechanism (6).

2. A booster chair as claimed in claim 1, characterised in that the seat support (1) comprises a front leg (121) and a rear leg (122), and at least four, for smooth placement of the seat support (1); all be connected with crossbeam (13) between landing leg (12), the top of each landing leg (12) is located in crossbeam (13), just enclose between crossbeam (13) and close and form horizontal placing platform (11).

3. A booster chair according to claim 2, characterised in that the linkage mechanism (5) is a parallelogram linkage mechanism (5), the third link (54) is fixedly extended on one of the front legs (121), the active lever (51) and the second link (53) are both adapted to the cross beam (13), and the active lever (51) is rotated to be horizontally arranged on the corresponding cross beam (13) so that the seat part (2) is in a flat state; one end of the active rod (51) is connected to the first connecting rod (52), and the other end of the active rod is connected with the third connecting rod (54); the other end of the first connecting rod (52) is connected to a second connecting rod (53), two ends of the second connecting rod (53) are respectively connected with the first connecting rod (52) and a third connecting rod (54), and the other end of the third connecting rod (54) is connected with a driving rod (51) so as to form the parallelogram link mechanism (5) in a linkage mode.

4. A booster chair as claimed in claim 3, characterised in that the linkage (5) is substantially rectangular when the seat part (2) is in a flat position, the first and third links (52, 54) being perpendicular to the active bar (51) or the second link (53), respectively; when the seat part (2) is in an upright state, the driving rod (51), the first connecting rod (52), the second connecting rod (53) and the third connecting rod (54) are all arranged vertically, and the first connecting rod (52) and the third connecting rod (54) are parallel to the driving rod (51) or the second connecting rod (53) respectively.

5. A booster chair according to claim 2, characterized in that the armpit supporting plate (41) is assembled on the backrest part (3) through the linkage mechanism (42), the seat part (2) is in an upright state, the linkage mechanism (42) controls the armpit supporting plate (41) to relatively protrude in a horizontal direction and transversely position on the backrest part (3), so that the armpit supporting plate (41) is in a use state capable of supporting the armpits of a user; the seat part (2) is in a flat state, and the linkage mechanism (42) controls the armpit supporting plate (41) to be relatively placed in parallel with the backrest part (3) along the vertical direction, so that the armpit supporting plate (41) is in an avoiding state relatively far away from a user.

6. The booster chair according to claim 5, wherein the linkage mechanism (42) comprises a frame (421) disposed on the backrest part (3), a support rod (422) and a long link (423) respectively hinge-disposed at both ends of the frame (421), and a short link (424) connecting the support rod (422) and the long link (423); the armpit supporting plate (41) is arranged at one end, far away from a hinge point, of the supporting rod (422), the long connecting rod (423) is a stress rod, and an avoiding groove is formed in the long connecting rod (423) and used for accommodating the supporting rod (422) in a penetrating mode, so that the supporting rod (422) and the long connecting rod (423) are crossed along the rack (421) and mutually avoid to rotate; the short connecting rod (424) is hinged between the supporting rod (422) and the long connecting rod (423), and the long connecting rod (423) is controlled by external force, so that the long connecting rod (423) drives the short connecting rod (424) to rotate to be accommodated in the avoiding groove and to be perpendicular to the supporting rod (422).

7. The booster chair as claimed in claim 6, wherein the front end face of the front leg (121) is provided with a pedal part (7) capable of moving up and down, the pedal part (7) is linked with the support part (4), so that the armpit supporting plate (41) of the support part (4) can be correspondingly switched between a use state and a avoidance state by controlling the up-down of the pedal part (7).

8. A power-assisted chair according to claim 7, characterized in that a pull rope (9) is connected between the supporting part (4) and the pedal part (7), one end of the pull rope (9) is connected to the long connecting rod (423), the other end is connected to the pedal part (7) along the backrest part (3) and the seat part (2), and the pull rope (9) drives the long connecting rod (423) to rotate along the hinge point of the long connecting rod and the frame (421) through the lifting movement of the pedal part (7).

9. A booster chair as claimed in claim 7, characterised in that the pushing mechanism (6) comprises an electric push rod (61), the electric push rod (61) being movably arranged on one side of the seat support (1); a mounting rod (14) is transversely arranged between the front supporting leg (121) and the rear supporting leg (122) which are positioned on the same side, the electric push rod (61) is hinged on the mounting rod (14), and the output shaft of the electric push rod is hinged on the driving rod (51) or the seat part (2), so that the seat part (2) is pushed to move between an upright state and a flat state.

10. A booster chair according to claim 9, characterised in that the rear end of the mounting bar (14) is hinged at the bottom end of the rear leg (122), and its front end is movably arranged in relation to the front leg (121) and extends partly to the front side of the front leg (121); the front end of the mounting rod (14) is linked with the pedal part (7), so that the pedal part (7) is controlled by the mounting rod (14), the electric push rod (61) extends or contracts relatively, the output shaft reversely pushes or pulls the mounting rod (14) to rotate along the hinged part, and the pedal part (7) is correspondingly driven to descend or ascend.

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