CN210812364U - Old man of seat linkage parking helps capable ware - Google Patents

Abstract

The utility model discloses a seat linkage parking old man walking aid, which comprises a walking aid frame body, wherein the bottom of the walking aid frame body is provided with a walking wheel, the walking aid frame body is provided with a seat, the rotary joint of the seat and the walking aid frame body is a seat rotating center, the walking wheel comprises a wheel carrier and a wheel body arranged at the lower end part of the wheel carrier, and the upper end part of the wheel carrier is rotatably connected with the walking aid frame body; the connection point of the upper end part of the wheel frame and the frame body of the walking aid is the rotation center of the wheel frame, and a linkage mechanism is arranged between the rotation center of the seat and the rotation center of the wheel frame. The utility model discloses make seat and walking wheel linkage, the seat rotates and drives wheel carrier forward or reverse rotation, realizes wheel rotary column or post runner operation to guaranteed that the user wants to sit and has a rest and then must put down the seat on helping the capable ware, put down the seat and then help the capable ware must be in the steady state who stops, improved the security and the reliability of using, reduce owing to forget the probability that the locking wheel is smooth.

Description

A walker for the elderly with seat linkage parking

technical field

The utility model belongs to the technical field of walkers, in particular to a walker for the elderly with a seat linkage parking.

Background technique

The structure of a common four-wheel walker is shown in the utility model patent publication No. CN2496446Y, including a handbrake, a seat cushion, a braking action point, a rear wheel and a front universal wheel, etc. Usually, the elderly can push the walker to assist walking, and when the emergency needs to brake, they can press the handbrake, and the force can be transmitted to the braking point to brake the rear wheel. When you need to sit down and rest, you need to pull down the handbrake, so that the rear wheel is in a braking state for a long time, to ensure the stability of the walker when you sit down, and to prevent falls.

This kind of four-wheel walker requires the elderly to manually lock the wheels to prevent the wheels from sliding, and the elderly group generally has poor memory. When the elderly want to sit down and rest, they tend to forget to pull down the handbrake, and the wheels are still in the driving state. The rear walker is very easy to slide backward and fall, with disastrous consequences.

Other forms of braking for four-wheel walkers are also disclosed in the prior art.

For example, the utility model patent with the publication number CN202724206U discloses a walker, which includes a frame, a walking wheel, a support handle and a manual brake mechanism. The frame includes a pair of front support rods and a pair of rear support rods. The two front support rods The middle parts of the two rear support rods are fixedly connected with each other through the front cross bar, and the middle parts of the two rear support rods are fixedly connected with each other through the rear cross rod. A seat plate is arranged on the front cross rod and the rear cross rod. The lower end of the support rod is provided with a self-weight braking mechanism, and a foot is formed at the bottom of the front support rod or the rear support rod. In the unloaded state of the walker, the self-weight braking mechanism drives the foot to lift up and leave the ground. When the vehicle is manned, the self-weight braking mechanism drives the feet to touch the ground to form automatic braking. Compared with the prior art, the utility model has the advantages that: the overall structure of the walker is relatively simple, and the self-weight of the human body is used for braking, which can ensure the safety and reliability of the walker's braking in a manned state.

For example, the utility model patent with the publication number CN201798883U discloses a walker with safety braking performance, including a wheelchair, the wheelchair is composed of a chair frame and a walking wheel mechanism connected to the support legs of the chair frame. A lift spring is arranged longitudinally between the roller shafts in the walking wheel mechanism. One end of the lift spring acts on the support leg, and the other end acts on the roller shaft, so that an elastic connection is formed between the support leg and the roller shaft, and the roller shaft and the roller are in phase. Connection; feet for braking are extended from the support legs to the ground. When the wheelchair is unloaded, the rollers contact the ground, and the lift spring lifts the feet through the support legs and hangs relative to the ground. When the wheelchair is fully loaded In the state, the foot touches the ground to form a self-weight braking mechanism. When practicing walking, the spring lifts the wheelchair frame, and the feet are suspended on the ground. When resting and riding, the body's own weight is used to make the feet touch the ground to form automatic braking. The solution overcomes the deficiencies of the existing brake design of the same kind of walker, and ensures the safety of the brake of the walker to the greatest extent.

For example, the invention patent with the publication number CN102247262B discloses an automatic braking device for a walker in the technical field of a walker, including an infrared sensor circuit, a triode switch circuit, a power supply and two electromagnetic brakes. The utility model can sense the distance between the user of the walker and the walker through the infrared sensor, and when the distance is within a certain range, it is normal assisted walking, and the braking device is not triggered. When the distance exceeds a certain range, it is determined as an abnormal use situation, and the user is no longer near the walker, and the automatic braking device is triggered immediately to lock the walker to prevent accidents.

The technical solutions of the above announcement numbers CN202724206U and CN201798883U use self-weight brakes, and the technical solutions of the announcement number CN102247262B use infrared induction brakes, which can improve safety and reliability to a certain extent compared to handbrakes, but there are still defects of slipping during use: such as The self-weight brake is in an unbraking state when the user is not riding, and the walker may slip during the user's sitting process, and it is difficult to determine the self-weight parameter of the brake; for example, infrared induction brakes are easily mistaken by debris Triggered, cannot effectively sense the distance between the user of the walker and the walker, and cannot accurately judge the normal use or abnormal use.

Utility model content

The purpose of the utility model is to provide a walker for the elderly with a seat linkage parking.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

A walker for the elderly with seat linkage parking, comprising a walker frame body, a walking wheel is installed at the bottom of the walker frame body, a seat is installed on the walker frame body, and the seat is connected to the walker frame. The rotating connection of the frame body forms a rotary seat structure, and the rotating connection between the seat and the frame body of the walker is the seat rotation center, and the seat rotates so that it has two states of retraction and deployment;

The walking wheel includes a wheel frame and a wheel body mounted on the lower end of the wheel frame, the upper end of the wheel frame is rotatably connected with the walker frame body; the connection point between the upper end of the wheel frame and the walker frame body is the wheel frame rotation center, And the distance from the rotation center of the wheel frame to the lower end of the walker frame is less than the turning radius of the walking wheel with the rotation center of the wheel frame;

There is a linkage mechanism between the seat rotation center and the wheel frame rotation center. When the seat rotates from the retracted state to the unfolded state, the rotation of the seat rotation center is transmitted to the wheel frame rotation center through the linkage mechanism, and the wheel frame rotation center rotates to drive The wheel frame rotates in the forward direction, so that the wheel body is separated from the working surface, and the lower end of the walker frame body is in contact with the working surface; when the seat is rotated and reset from the unfolded state to the retracted state, the rotation of the seat rotation center is transmitted to the wheel frame through the linkage mechanism Rotation center, the rotation of the wheel frame rotation center drives the wheel frame to rotate in the opposite direction, so that the wheel body is in contact with the working surface.

The linkage mechanism includes a driving sprocket set at the rotation center of the seat and a driven sprocket set at the rotation center of the wheel frame, the seat is fixedly connected with the driving sprocket, the wheel frame is fixedly connected with the driven sprocket, and the driving The sprocket and the driven sprocket are connected through a transmission mechanism.

The frame body of the walker is also provided with a seat limiting portion, and when the seat is rotated from the retracted state to the unfolded state, the seat limiting portion abuts and cooperates with the seat to support the seat.

When the seat is rotated in the unfolded state, the seat is in a horizontal position.

A seat locking part is also installed on the walker frame body, and when the seat is in a retracted state, the seat locking part realizes the position locking of the seat.

The seat locking portion includes a spring pin installed on the walker frame, and a positioning pin hole is provided on the seat corresponding to the spring pin.

The beneficial effects of the present utility model:

The utility model enables the seat to be linked with the walking wheels, and the rotation of the seat drives the wheel frame to rotate in the forward or reverse direction, so as to realize the operation of rotating the column or the column, thereby ensuring that the user must put down the seat if he wants to rest on the walker. When the seat is lowered, the walker must be in a stable state of parking, which improves the safety and reliability of use and reduces the chance of slipping due to forgetting to lock the wheels.

Description of drawings

1 is a schematic structural diagram of a seat in a stowed state according to an embodiment of the present invention;

Accompanying drawing 2 is the enlarged schematic diagram of the linkage mechanism in FIG. 1;

3 is a schematic structural diagram of the seat in the unfolded state according to the embodiment of the present invention;

FIG. 4 is an enlarged schematic view of the linkage mechanism in FIG. 3 .

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

As shown in FIGS. 1 to 4 , a wheel-column automatic conversion type four-wheel walking aid device of this embodiment includes a walker frame body. The walker frame body is mainly composed of a front bracket 1 and a rear bracket 2 . A walking wheel 4 is installed at the bracket 2, a front universal wheel 5 is installed at the front bracket 1, and a seat 3 is also installed on the walker frame body 1. A handle 10 extending backwards is installed at the upper end of the walker frame to facilitate holding.

The seat 3 is rotatably connected with the walker frame body 1 to form a rotary seat structure, and the rotational connection between the seat 3 and the walker frame body is the seat rotation center, and the seat rotates so that it has two foldable and unfolded functions. state. In this embodiment, the seat rotation center is located at the connection between the rear bracket 2 and the front bracket 1 .

The frame body of the walker is also provided with a seat limiting portion 9 , when the seat is rotated from the retracted state to the unfolded state, the seat limiting portion 9 abuts and cooperates with the seat 3 to support the seat. In this embodiment, the seat stopper is installed at the horizontal section of the rear bracket 2 described below. When the seat 3 is rotated and is in the unfolded state, the seat 3 is in a horizontal position.

A seat locking part is installed on the front bracket 1. When the seat 3 is in a retracted state, the seat locking part realizes the position locking of the seat; the seat locking part includes a spring pin 11 installed on the front bracket 1, and the seat Positioning pin holes are provided on the chair 3 corresponding to the spring pins 11 to ensure that the seat is in a fixed position when it is folded, so as to prevent the rotation of the chair from affecting the traveling wheel 4 during the walking process.

In this embodiment, the rear bracket 2 is composed of a horizontal section that protrudes backward and an extension section that is connected to the rear end of the horizontal section and extends downward. The traveling wheel 22 is installed at the extension section to facilitate the installation of the seat limiter. Ensure the support of the seat and achieve the stability of the walker frame.

The walking wheel 4 includes a wheel frame 41 and a wheel body 42 mounted on the lower end of the wheel frame 41. The upper end of the wheel frame 41 is rotatably connected with the extension of the rear bracket 2; the connection point between the upper end of the wheel frame 41 and the rear bracket 2 is the wheel frame The distance from the rotation center of the wheel frame to the lower end of the extension section of the rear bracket 2 is smaller than the turning radius of the traveling wheel 4 with the rotation center of the wheel frame as the center of the circle.

A linkage mechanism is arranged between the seat rotation center and the wheel frame rotation center, the rear bracket 2 is a hollow cavity structure, and the linkage mechanism is arranged in the hollow cavity.

The linkage mechanism includes a driving sprocket 6 set at the center of rotation of the seat, a driven sprocket 8 set at the center of rotation of the wheel frame, and a relay sprocket 7 set at the junction of the horizontal section and the extension section. 3 is fixedly connected with the driving sprocket 6 , and the wheel frame 41 is fixedly connected with the driven sprocket 8 . In this embodiment, the relay sprocket 7 is a double gear composed of two transmission sprockets, one of which is connected to the driving sprocket 6 through a chain ring, and the other transmission sprocket is connected to the driven sprocket. 8 Connected by chain ring drive.

The working principle of the utility model is as follows: when the seat 3 rotates from the retracted state to the unfolded state, the seat 3 rotates and drives the driving sprocket 6 located at the seat rotation center to rotate in the forward direction, and the driving sprocket 6 rotates through the relay chain. The wheel 7 is transmitted to the driven sprocket 8 located at the rotation center of the wheel frame to rotate, and the rotation of the driven sprocket 8 drives the wheel frame 41 to rotate in the forward direction, so that the wheel body 42 is separated from the working surface, and the lower end of the extension section of the rear bracket 2 is in contact with the working surface. , Complete the operation of the rotating column and realize the parking of the walker. At this time, the walker is more stable, which is convenient for the user to sit down and is not easy to fall.

When the seat 3 is rotated and reset from the unfolded state to the retracted state, the seat 3 rotates and drives the driving sprocket 6 located at the seat rotation center to rotate in the opposite direction, and the rotation of the driving sprocket 6 is transmitted to the wheel frame through the relay sprocket 7. The driven sprocket 8 in the rotation center rotates, and the driven sprocket 8 rotates to drive the wheel frame 41 to rotate in the reverse direction, so that the wheel body 42 contacts the working surface, and the column runner operation is completed, which is convenient for assisting walking.

The utility model enables the seat to be linked with the walking wheels, and the rotation of the seat drives the wheel frame to rotate in the forward or reverse direction, so as to realize the operation of rotating the column or the column, thereby ensuring that the user must put down the seat if he wants to rest on the walker. When the seat is lowered, the walker must be in a stable state of parking, which improves the safety and reliability of use and reduces the chance of slipping due to forgetting to lock the wheels.

The design of the utility model is more friendly to the elderly. If the elderly want to rest on the walker, they must put down the seat, and when the seat is put down, the walking wheel will rotate and raise the rear frame and land on the ground. This solution greatly reduces the possibility of slipping due to the elderly forgetting to lock the wheels.

The above embodiments are only used to illustrate rather than limit the technical solutions of the present utility model. Although the present utility model has been described in detail with reference to the above-mentioned embodiments, those of ordinary skill in the art should understand that the present utility model can still be modified or equivalently replaced. Any modification or partial replacement without departing from the spirit and scope of the present invention shall be covered by the scope of the claims of the present invention.

In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "front", "rear", "left", "right", "upper", "lower", etc. are based on those shown in the accompanying drawings. The orientation or positional relationship is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated for a specific orientation, and therefore cannot be understood as a reference to the present utility model. New restrictions on protected content.

Claims (6)

1. A walker for the elderly with a seat linkage parking, comprising a walker frame body, the bottom of the walker frame body is equipped with a walking wheel, and a seat is installed on the walker frame body, and it is characterized in that: The seat and the walker frame are rotatably connected to form a rotary seat structure, and the rotational connection between the seat and the walker frame is the seat rotation center, and the seat is rotated to have two states of retraction and deployment; The walking wheel includes a wheel frame and a wheel body mounted on the lower end of the wheel frame, the upper end of the wheel frame is rotatably connected with the walker frame body; the connection point between the upper end of the wheel frame and the walker frame body is the wheel frame rotation center, And the distance from the rotation center of the wheel frame to the lower end of the walker frame is less than the turning radius of the walking wheel with the rotation center of the wheel frame; There is a linkage mechanism between the seat rotation center and the wheel frame rotation center. When the seat rotates from the retracted state to the unfolded state, the rotation of the seat rotation center is transmitted to the wheel frame rotation center through the linkage mechanism, and the wheel frame rotation center rotates to drive The wheel frame rotates in the forward direction, so that the wheel body is separated from the working surface, and the lower end of the walker frame body is in contact with the working surface; when the seat is rotated and reset from the unfolded state to the retracted state, the rotation of the seat rotation center is transmitted to the wheel frame through the linkage mechanism Rotation center, the rotation of the wheel frame rotation center drives the wheel frame to rotate in the opposite direction, so that the wheel body is in contact with the working surface. 2 . A walker for the elderly with seat linkage parking according to claim 1 , wherein the linkage mechanism comprises a driving sprocket set at the rotation center of the seat and a driving sprocket set at the rotation center of the wheel frame. 3 . The driven sprocket, the seat is fixedly connected with the driving sprocket, the wheel frame is fixedly connected with the driven sprocket, and the driving sprocket and the driven sprocket are connected by a transmission mechanism. 3. A walker for the elderly with a seat linkage parking according to claim 1 or 2, wherein the walker frame is further provided with a seat limiter, when the seat is retracted by When rotated from the up state to the unfolded state, the seat limiting part is in abutment and cooperation with the seat, so as to realize the support of the seat. 4 . The walking aid for the elderly with seat linkage parking according to claim 3 , wherein: when the seat is rotated and is in an unfolded state, the seat is in a horizontal position. 5 . 5. A walker for the elderly with seat linkage parking according to claim 1, wherein the walker frame is further provided with a seat locking part, when the seat is in a stowed state , the seat locking part realizes the position locking of the seat. 6 . The elderly walker with seat linkage parking according to claim 5 , wherein the seat locking portion comprises a spring pin installed on the walker frame, and the seat is connected to the spring. 7 . Positioning pin holes are provided at the corresponding positions of the pins.

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