CN109770593B - Telescopic chair for sitting and lying - Google Patents
Telescopic chair for sitting and lying Download PDFInfo
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- CN109770593B CN109770593B CN201711126075.4A CN201711126075A CN109770593B CN 109770593 B CN109770593 B CN 109770593B CN 201711126075 A CN201711126075 A CN 201711126075A CN 109770593 B CN109770593 B CN 109770593B
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Abstract
The invention relates to a telescopic sitting and lying dual-purpose office and study chair, which comprises a left upper frame cross piece, a right lower frame cross piece, a left front main support piece, a left rear main support piece and a right rear main support piece which are respectively and correspondingly formed into a left parallelogram mechanism and a right parallelogram mechanism, wherein the left side and the right side of a chair seat part are respectively and mutually combined with the left upper frame cross piece and the right upper frame cross piece to form a left guide rail kinematic pair and a right guide rail kinematic pair, and the back side piece of a chair back part is connected with the rear main support piece. The locking assembly locks the seat at the seat, and after the seat is loosened, the back part rotates backwards to bring linkage, the chair stretches, and the seat moves downwards to the low lying position. When sitting at a high position, the chair back is low and no armrest exists; when lying in the low position, the chair back is long and has armrests. The person lies on the seat part, the telescopic part and the chair back part, the arms rest on the armrests, and the feet rest on the ground, so that the dual purposes of sitting and lying are realized. The invention has the characteristics of telescoping and the like, has the advantages of simple structure, small occupied area, low cost and the like, and is expected to realize popular consumption. The aims of improving office and learning efficiency are achieved while solving the problem of sedentary hazard and strengthening body.
Description
Technical Field
The invention relates to the technical field of furniture, in particular to a telescopic office and study chair for sitting and lying.
Background
Sitting for a long time, the life state of modern people is achieved. According to authoritative media reports, sedentary sitting not only causes organ injury and muscle degeneration, but also hurts heart, spine, brain and intestinal tract; sedentary sitting is the culprit of accelerating modern people from multiple health problems and diseases. In order to change the hazards caused by sedentary sitting, people try to inject lying/resting and body building elements into the chair, and the purposes of improving work and learning efficiency and building body are expected to be achieved while eliminating or reducing the hazards by adding additional functions of the chair. However, the market and related data display at present do not find an effective popular method for the most common and most common problems of noon break/noon nap of students in middle and primary schools and related persons in places such as offices with narrow space and crowded schools and middle and primary schools. In particular, the additional function of lying on the chair for middle and primary school students with low chair back and no armrests is added, and the difficulty of realizing low technology, use and price is higher. Such as:
1) At present, a telescopic or folding foot rest is additionally arranged on chairs such as a few computer chairs, boss chairs, racing chairs and the like in the market, and the function of lying/resting is realized by matching with the characteristic of adjustable angle of the chair back. For example, a foldable leg rest device of patent No. ZL2015210134233 "or a chair leg rest of patent No. ZL201320071075X" is provided. Such chairs are intended to be used for sitting and lying: ① A high back, seat and foot rest are necessary; ② Armrests are arranged when sitting and lying. Armrests are arranged on the chair back and the sitting time, so that the chair is not suitable for crowded occasions such as classrooms; ③ In order to prevent the chair from turning backwards due to the backward movement of the gravity center of the human body after lying down, the contact area between the chair feet and the ground is large enough, so that the occupied space and the occupied area of the chair are large; ④ The angle adjustment of the chair back and the foot rest is implemented, so that sitting and lying are realized, and the chair back and foot rest adjusting mechanism is needed. Thereby bringing higher cost and troublesome operation. The four chairs are difficult to realize large-scale consumption and difficult to realize use in crowded occasions like classrooms of students.
2) The chair suitable for the afternoon nap of the student has the application number 2013106788979 and consists of a panel, a head rest, a headrest, a supporting rod, a transverse support and a support. The panel and the backrest form a four-leg chair. The upper end connector support of back, head support lower extreme connect branch, and branch passes the upper end of back and middle horizontal support, has a screw in the middle of the back of horizontal support, supports branch. The two ends of the head rest are provided with a payment support. The support is arc-shaped, the inner surface of the arc is soft cushion, and the support can rotate up and down 90. The head rest can move upwards to adjust the position. When the student is at noon nap, the position of the head rest is adjusted, and the student can feel comfortable at noon nap by putting down the head rest. The chair suitable for the afternoon nap of the students is a most inequality method for enabling the students to take off the head to sleep, and cannot meet the special requirement of the chair for sitting and lying, namely, the chair has low chair back and no armrests during sitting; when lying, the chair back is long and is provided with armrests; the occupied area and space are small.
Disclosure of Invention
The invention aims to provide a telescopic dual-purpose office and study chair for sitting and lying, which reduces the reverse design thought of a chair seat, simplifies the structure, is simple and convenient to use, and comprises a foot rest device; by linkage, when the seat is in a high position, the chair is contracted and the seat is in a sitting position; when the chair seat is in a low position, the chair stretches and is in a lying position, so that sitting and lying dual purposes are realized; in particular to the use characteristics of a sitting and lying dual-purpose student chair, namely, when the chair seat is in a high position, the chair back is low and armless; when the chair seat is in a low position, the chair back is long and is provided with armrests; the occupied area and space are small. Due to the characteristics of expansion and contraction and the like, the method comprises the following steps: ① Besides meeting the physical characteristics of sitting and lying of a human body, the device has simple and compact structure and simple and reliable operation; ② Low cost, small occupied space and small area; ③ The volume of the packaging box can be minimized by slightly disassembling, and the packaging and logistics cost is reduced. Therefore, the multifunctional chair has wider application range, realizes popular consumption, and achieves the aims of improving office and learning efficiency while eliminating or relieving sedentary hazard and building up body.
In order to achieve the main purpose, the invention is realized by the following technical scheme. It mainly comprises a chair back component, a chair seat component, a chair frame component and a locking component. The chair back component mainly comprises a back frame component and a plurality of back inner pieces, the back frame component mainly comprises two back side pieces and a plurality of back cross pieces, the two back side pieces are a left back side piece and a right back side piece, two ends of the back cross pieces are fixedly connected with proper positions of the two back side pieces respectively, and the back inner pieces are connected to proper positions of the back frame component. The seat part mainly comprises two seat side parts, a seat part and a seat transverse part, wherein the two seat side parts are a left seat side part and a right seat side part, the left seat side part is fixedly connected with the left side of the seat part, the right seat side part is fixedly connected with the right side of the seat part, and the seat transverse part is fixedly connected with the lower plane of the seat part. The chair frame component consists of four main supporting pieces, two upper frame transverse pieces, two lower frame transverse pieces, an auxiliary supporting piece, a shaft piece, a fixing piece and a handrail component I, wherein the four main supporting pieces are a left front main supporting piece, a left rear main supporting piece, a right front main supporting piece and a right rear main supporting piece, the two upper frame transverse pieces are a left upper frame transverse piece and a right upper frame transverse piece, the two lower frame transverse pieces are a left lower frame transverse piece and a right lower frame transverse piece, the front end of the left upper frame transverse piece is movably connected with the upper end part of the left front main supporting piece, the rear end of the left upper frame transverse piece is movably connected with the upper end part of the left rear main supporting piece through the left end of the shaft piece, the front end of the right upper frame transverse piece is movably connected with the upper end part of the right front main supporting piece, The rear end of the right upper frame cross member is movably connected with the upper end of the right rear main support member through the right end of the shaft member, and the shaft member is connected with the auxiliary support member. The front end of the left lower frame cross member is movably connected with the lower part of the left front main support, the rear end of the left lower frame cross member is movably connected with the lower part of the left rear main support, the front end of the right lower frame cross member is movably connected with the lower part of the right front main support, the rear end of the right lower frame cross member is movably connected with the lower part of the right rear main support, the two ends of the fixing member are fixedly connected with the proper position of the main support, the armrest component I consists of a left small connecting member, a left armrest, a left auxiliary armrest, a right small connecting member, a right armrest and a right auxiliary armrest, one end of the left small connecting member is fixedly connected with the left lower frame cross member of the chair frame component, The other end of the small left connecting piece is fixedly connected with a left handrail, the left handrail is connected with a left auxiliary handrail, one end of the small right connecting piece is fixedly connected with a right lower frame transverse piece of the chair frame part, the other end of the small right connecting piece is fixedly connected with a right handrail, and the right handrail is connected with a right auxiliary handrail. The left four-bar mechanism formed by the left upper frame cross piece, the left lower frame cross piece, the left front main support piece and the left rear main support piece is a left parallelogram mechanism, and the right four-bar mechanism formed by the right upper frame cross piece, the right lower frame cross piece, the right front main support piece and the right rear main support piece is a right parallelogram mechanism. The connection between the seat part and the seat frame part is the connection between the left side part of the seat part and the left upper frame transverse part of the seat frame part, and the connection between the right side part of the seat part and the right upper frame transverse part of the seat frame part. The left back side piece of the chair back component is connected with the left rear main support piece of the chair frame component, and the right back side piece of the chair back component is connected with the right rear main support piece of the chair frame component. The locking component is arranged on the two connecting pieces with relative movement; one end of the locking component is arranged on any piece forming the left parallelogram mechanism and the right parallelogram mechanism, and the other end of the locking component is arranged on an adjacent side piece of any piece on the same parallelogram mechanism.
The left side part of the seat part is connected with the left upper frame cross member of the seat part, and the left seat side member of the seat part is connected with the left guide rail kinematic pair of the left upper frame cross member of the seat part; the right side part of the seat part is connected with the right upper frame cross member of the seat frame part through a right guide rail kinematic pair of the right seat side member of the seat part and the right upper frame cross member of the seat frame part. The upper end of the auxiliary supporting piece is fixedly connected with the rear part of the telescopic piece, and the shape cavity formed by the seat piece of the seat piece, the two seat side pieces and the seat transverse piece is movably connected with the middle front part of the telescopic piece.
The left side part of the seat part and the left upper frame cross member of the seat part are fixedly connected with the left side part of the seat part and the left upper frame cross member (which can be regarded as the same piece with the left seat side member) of the seat part; the right side of the seat part is fixedly connected with the right side of the seat part and the right upper frame cross member of the seat part (which can be regarded as the same piece with the right seat side member). The shaft piece is movably connected with the auxiliary supporting piece. The back side piece of the chair back component is provided with a positioning piece I.
The left pushing piece is fixedly connected with the left small connecting piece, the right pushing piece is fixedly connected with the right small connecting piece, and the right pushing piece is movably connected with the right small connecting piece.
The chair comprises a chair seat and a chair back component, wherein an armrest component II is arranged between the chair seat and the chair back component, the armrest component II mainly comprises a left main handle, a left auxiliary handle, a right main handle and a right auxiliary handle, one end of the left main handle is movably connected with a left back side part of the chair back component, the other end of the left main handle is movably connected with one end of the left auxiliary handle, the other end of the left auxiliary handle is movably connected with the left side part of the chair seat component, one end of the right main handle is movably connected with a right back side part of the chair back component, the other end of the right main handle is movably connected with one end of the right auxiliary handle, and the other end of the right auxiliary handle is movably connected with the right side part of the chair seat component.
The locking component is arranged on the two connecting pieces which form the movable connection, and is realized in such a way;
The locking component is a locking piece, the locking piece is movably connected with the proper position of the seat part, and the locking piece and the upper transverse piece can be in locking connection.
And the left front main support and the right front main support are provided with positioning pieces II.
The lower ends of the main supporting pieces of the chair frame component are provided with movable wheels.
Through the structure, the telescopic dual-purpose office and study chair for sitting and lying has two structural forms of guide rail kinematic pair connection and fixedly connected. The specific operation and action are as follows.
1. And the main operation and linkage of the connection mode of the left and right guide rail kinematic pairs.
When the locking component is in a locking state, the chair is in a high sitting position. At this time, the left and right auxiliary armrests fixedly connected to the left and right small connecting members are on the same plane with the seat part of the seat part. Releasing the locking assembly to enable the chair back component to rotate backwards, and bringing the following linkage: ① The left parallelogram mechanism and the right parallelogram mechanism rotate, the seat piece/the left upper frame cross piece and the left lower frame cross piece simultaneously translate downwards and backwards, the downward translation distance of the seat piece is large, the downward translation distance of the left lower frame cross piece and the right lower frame cross piece is small, and the distance between the left upper frame cross piece and the right upper frame cross piece is small, so that the left handrail and the right handrail of the left small connecting piece fixedly connected to the left lower frame cross piece and the right lower frame cross piece are gradually higher than the seat piece; ② Meanwhile, as the seat part moves backwards greatly, the left and right small connecting pieces fixedly connected to the left and right lower frame transverse pieces move backwards little, and the movement of the front and rear positions of the left and right small connecting pieces are misplaced, when the left and right pushing pieces and the left and right small connecting pieces are forced to move at the same distance, the seat part is forced to move forwards along the left and right guide rail kinematic pairs; ③ The rear end is connected with the shaft piece, the middle front end and a cavity formed by a seat piece of the seat part, two seat side pieces and a seat transverse piece form a telescopic piece which is movably connected, and the telescopic piece is pulled back by the shaft piece and translates downwards; ④ After the auxiliary supporting piece fixedly connected to the telescopic piece supports the ground, the seat piece of the chair stretches to a low position, and the left handrail and the right handrail are positioned at a high position and are higher than the seat piece. Simultaneously, the telescopic piece is placed on the shaft piece and the seat cross piece, and the distance between the seat piece and the seat back part is pulled open and connected; ⑤ The lower position, the lying position, the position where the person lies on the seat part, the telescopic part and the chair back part, the arms rest on the raised left and right handrails, and the feet rest on the ground. The positioning pieces II arranged on the left front main supporting piece and the right front main supporting piece increase the supporting rigidity of the two parallelogram mechanisms. The chair back component is reversely rotated, the chair is contracted by reverse linkage, the chair is restored to the high-position sitting position, and the locking component is locked again. The movable wheels arranged at the lower ends of the left and right front main support pieces or the left and right rear main support pieces can facilitate the forward and backward movement of the empty chair when the empty chair is pushed to be moved and sitting.
2. The main operation and linkage of the fixed connection form.
1) And when the armrest component I is adopted, the main operation and linkage are adopted when the structure forms of the left armrest, the right armrest and the left small connecting piece are adopted.
When the locking component is in a locking state, the chair is in a high sitting position. The left and right auxiliary armrests fixedly connected to the left and right small connecting pieces are on the same plane with the seat piece of the seat piece. The chair back component is rotated backwards, and the following linkage is brought: ① The left parallelogram mechanism and the right parallelogram mechanism rotate, the seat piece/the left upper frame cross piece and the left lower frame cross piece translate downwards at the same time, the translation distance of the seat piece is large, the translation distance of the left lower frame cross piece and the right lower frame cross piece is small, and the distance between the left upper frame cross piece and the right upper frame cross piece and the left lower frame cross piece is small, so that the left handrail and the right handrail of the left small connecting piece and the right small connecting piece fixedly connected to the left lower frame cross piece are higher than the seat piece step by step; ② The sub-support rotates rearward about the shaft. When the auxiliary supporting piece is positioned by the positioning piece I fixedly connected to the left back side piece and the right back side piece of the chair back component, the chair stretches to a low position, and the left handrail and the right handrail are positioned at a high position and are higher than the seat piece; ③ The lower position, where the person lies, is on the seat and back components, the arms rest on the raised left and right handrails, and the feet rest on the ground. The chair back component is reversely rotated, the chair is contracted by reverse linkage, the chair is restored to the high-position sitting position, and the locking component is locked again. Two locating pieces II arranged on the left front main supporting piece and the right front main supporting piece are respectively placed on the left lower frame transverse piece and the right lower frame transverse piece, and the two locating pieces II can increase the supporting rigidity of the two parallelogram mechanisms. The movable wheels arranged at the lower ends of the left and right front main support pieces or the left and right rear main support pieces can facilitate the pushing and moving of the empty chair and the forward and backward movement during sitting.
2) In the case of the armrest component II, the main operation and linkage are performed in the structural form of the left and right main handles and the left and right auxiliary handles.
When the locking component is in a locking state, the chair is in a high sitting position. The armrest assembly is located on either side of the seat member. The chair back component is rotated backwards, and the following linkage is brought: ① The left parallelogram mechanism and the right parallelogram mechanism rotate, and the left main handle, the right main handle and the left auxiliary handle are lower than the original handles under the pulling of the chair back component; ② The sub-support rotates rearward about the shaft. When the auxiliary supporting piece is fixedly connected to the positioning pieces I on the left back side piece and the right back side piece of the chair back component, the chair stretches to a low position, and the two positioning pieces II arranged on the left front main supporting piece and the right front main supporting piece are respectively placed on the left lower frame transverse piece and the right lower frame transverse piece, so that the two positioning pieces II can increase the supporting rigidity of the two parallelogram mechanisms; ③ The lower position, the lying position, the position where the person lies on the seat and the chair back part, the arms rest on the left and right main handles and the left and right auxiliary handles, and the feet rest on the ground. The chair back component is reversely rotated, the chair is contracted by reverse linkage, the chair is restored to the high-position sitting position, and the locking component is locked again. The movable wheels arranged at the lower ends of the left and right front main support pieces or the left and right rear main support pieces can facilitate the forward and backward movement of the empty chair when the empty chair is pushed to be moved and sitting.
3) When the telescopic office and study chair without the armrest component is used for sitting and lying, the arms rest on the body or other suitable places when the person lies.
In summary, the invention uses the reverse design thought of reducing the chair seat, uses a proper mechanism, simplifies the structure, is simple and convenient to use, and comprises the step of omitting a foot rest device; by linkage, when the seat is in a high position, the chair is contracted and is in a sitting position; when the chair seat is in a low position, the chair stretches and is in a lying position, so that sitting and lying dual purposes are realized; in particular to the use characteristics of a sitting and lying dual-purpose student chair, namely, when the chair seat is in a high position, the chair back is low and armless; when the chair seat is in a low position, the chair back is long and is provided with armrests. Due to the characteristics of expansion and contraction and the like, the method comprises the following steps: ① Besides meeting the physical characteristics of sitting and lying of a human body, the device has simple and compact structure and simple and reliable operation; ② Low cost, small occupied space and small area; ③ The volume of the packaging box can be minimized by slightly disassembling, and the packaging and logistics cost is reduced. Therefore, the multifunctional chair has wider application range, realizes popular consumption, and achieves the aims of improving office and learning efficiency while eliminating or relieving sedentary hazard and building up body.
Drawings
The following describes the preferred embodiments of the present invention with reference to the accompanying drawings.
FIG. 1 is a left side view of a telescopic sitting and lying dual-purpose office and study chair according to a preferred embodiment;
FIG. 2 is a schematic view of the A-direction of FIG. 1;
FIG. 3 is a schematic view of the B-direction of FIG. 1;
FIG. 4 is a left side view of a retractable office and reclining chair according to another preferred embodiment;
fig. 5 is a schematic view in the direction C of fig. 4.
Detailed Description
Examples one and two of the present invention will be described in detail below with reference to the accompanying drawings.
See fig. 1 and 2 and 3. This example-mainly consists of a back part 1, a seat part 2, a seat frame part 3, an armrest assembly 4 and a locking assembly 5. The chair back component 1 mainly comprises a back frame component 1-1 and a back inner piece 2-1, the back frame component 1-1 mainly comprises two back side pieces 1-1-1 and a back transverse piece 2-1, the two back side pieces 1-1-1 are a left back side piece 1-1-1 and a right back side piece 2-1-1, two ends of the two back transverse pieces 2-1-1 are respectively fixedly connected with the upper end parts and the lower parts of the two back side pieces 1-1, and the five back inner pieces 2-1 are fixedly connected to the two back transverse pieces 2-1-1 of the back frame component 1-1. The seat part 2 mainly comprises two seat side pieces 1-2, a seat 2-2 and a seat cross piece 3-2 (shown by a broken line in fig. 3), wherein the two seat side pieces 1-2 are a left seat side piece 1-1-2 and a right seat side piece 2-1-2 (shown by the broken line in fig. 3), the left seat side piece 1-1-2 is fixedly connected with the left side of the seat 2-2, the right seat side piece 2-1-2 is fixedly connected with the right side of the seat 2-2, and the two seat cross pieces 3-2 are fixedly connected with the lower plane of the seat 2-2. The chair frame part 3 mainly comprises four main supporting pieces 1-3, two upper frame transverse pieces 2-3, two lower frame transverse pieces 3-3, two auxiliary supporting pieces 4-3, a shaft piece 5-3 and a fixing piece 6-3, wherein the four main supporting pieces 1-3 are a left front main supporting piece 1-3, a left rear main supporting piece 2-1-3, a right front main supporting piece 3-1 and a right rear main supporting piece 4-1-3, the two upper frame transverse pieces 2-3 are a left upper frame transverse piece 1-2-3 and a right upper frame transverse piece 2-2-3, the two lower frame transverse pieces 3-3 are a left lower frame transverse piece 1-3-3 and a right lower frame transverse piece 2-3-3, the front end of the left upper frame transverse piece 1-2-3 is in sliding connection with the upper end part of the left front main supporting piece 1-1-3, the rear end of the left upper frame cross member 1-2-3 is in sliding connection with the upper end of the left rear main support member 2-1-3 through the left end of the shaft member 5-3, the front end of the right upper frame cross member 2-2-3 is in sliding connection with the upper end of the right front main support member 3-1-3, the rear end of the right upper frame cross member 2-2-3 is in sliding connection with the upper end of the right rear main support member 4-1-3 through the right end of the shaft member 5-3, and the shaft member 5-3 is connected with the two auxiliary support members 4-3. The front end of the left lower frame cross member 1-3-3 is in sliding connection with the lower part of the left front main support member 1-1-3, the rear end of the left lower frame cross member 1-3-3 is in sliding connection with the lower part of the left rear main support member 2-1-3, the front end of the right lower frame cross member 2-3-3 is in sliding connection with the lower part of the right front main support member 3-1-3, the rear end of the right lower frame cross member 2-3-3 is in sliding connection with the lower part of the right rear main support member 4-1-3, and two ends of the two fixing members 6-3 are respectively fixedly connected to the left front main support member 1-1-3 and the right front main support member 3-1-3. The left four-bar mechanism formed by the left upper frame cross member 1-2-3, the left lower frame cross member 1-3, the left front main support member 1-1-3 and the left rear main support member 2-1-3 is a left parallelogram mechanism, and the right four-bar mechanism formed by the right upper frame cross member 2-2-3, the right lower frame cross member 2-3-3, the right front main support member 3-1-3 and the right rear main support member 4-1-3 is a right parallelogram mechanism. The left seat side piece 1-1-2 of the seat part 2 and the left upper frame cross piece 1-2-3 of the seat frame part 3 are connected by a left guide rail sliding pair; the right seat side part 2-1-2 of the seat part 2 and the right upper frame cross part 2-2-3 of the seat frame part 3 are connected by a right guide rail sliding pair. The left seat side piece 1-1-2 and the right seat side piece 2-1-2 are composed of two support pieces, and the left upper frame cross piece 1-2-3 and the right upper frame cross piece 2-2-3 are cylindrical. The left back side piece 1-1-1 of the chair back component 1 is fixedly connected with the left back main support piece 2-1-3 of the chair frame component 3, and the right back side piece 2-1-1-1 of the chair back component 1 is fixedly connected with the right back main support piece 4-1-3 of the chair frame component 3. the upper ends of the two auxiliary supporting members 4-3 are fixedly connected with the rear parts of the telescopic members 7-3 (shown by broken lines in fig. 3), and the middle front parts of the telescopic members 7-3 are slidably connected with a cavity formed by the seat member 2-2 of the seat member 2, the two seat side members 1-2 and the two seat cross members 3-2. The armrest assembly 4 is an armrest assembly I4-I, the armrest assembly I4-I mainly comprises two left small connecting pieces 1-4-I, a left armrest 2-4-I, a left auxiliary armrest 3-4-I, two right small connecting pieces 4-4-I (shown by a broken line in figure 3), a right armrest 5-4-I and a right auxiliary armrest 6-4-I, one end of each of the two left small connecting pieces 1-4-I is fixedly connected to a left lower frame cross piece 1-3-3 of the chair frame part 3, the other ends of the two left small connecting pieces 1-4-I are fixedly connected to a left armrest 2-4-I, the left armrest 2-4-I and the left auxiliary armrest 3-4-I are hinged, one end of each of the two right small connecting pieces 4-4-I is fixedly connected to a right lower frame cross piece 2-3-3 of the chair frame part 3, The other ends of the two right small connecting pieces 4-4-I are fixedly connected with a right handrail 5-4-I, and the right handrail 5-4-I and a right auxiliary handrail 6-4-I are hinged. Two left pushing pieces 4-2 are fixedly connected to the left seat side piece 1-1-2 of the seat part 2, the two left pushing pieces 4-2 are in sliding connection with the two left small connecting pieces 1-4-I, two right pushing pieces 5-2 are fixedly connected to the right seat side piece 2-1-2 of the seat part 2, and the two right pushing pieces 5-2 are in sliding connection with the two right small connecting pieces 4-4-I. The two groups of locking components 5 are two locking pieces 1-5, the two locking pieces 1-5 are connected with the seat piece 2-2 of the seat part 2 by screw thread pairs, and the end parts of the two locking pieces 1-5 can respectively fix the left upper frame cross piece 1-2-3 and the right upper frame cross piece 2-2-3. The left front main support 1-1-3 and the right front main support 3-1-3 are provided with positioning pieces II8-3. The lower ends of the left front main support 1-1-3 and the right front main support 3-1-3 of the chair frame member 3 are provided with a movable wheel 9-3. The two-dot chain line pattern in the lower left part of fig. 1 shows the dual-purpose chair in the low position.
See fig. 4 and 5. The armrest assembly 4 adopted in the second embodiment is an armrest assembly II4-II, and the armrest assembly II4-II is a structure form of a left main handle, a right main handle and a left auxiliary handle. The second embodiment adopts the structure of the left and right main handles and the left and right auxiliary handles of the handrail components II4-II, and is intended to explain the implementation of the handrail components 4 from another angle. The second embodiment is the same as the first embodiment and mainly comprises a back component 1, a seat component 2, a seat frame component 3, armrest components II4-II and a locking component 5. The difference is that: ① The left side part of the seat part 2-2 of the seat part 2 is fixedly connected with the left upper frame transverse part 1-2-3 of the seat frame part 3; The right side part of the seat part 2-2 of the seat part 2 is fixedly connected with the right upper frame transverse part 2-2-3 of the seat frame part 3. The shaft 5-3 is slidably connected to the two sub-supports 4-3. The two back side pieces 1-1-1 of the chair back part 1 are fixedly connected with a positioning piece I3-1; ② The armrest component II4-II mainly comprises a left main handle 1-4-II, a left auxiliary handle 2-4-II, a right main handle 3-4-II and a right auxiliary handle 4-4-II, one end of the left main handle 1-4-II is in sliding connection with a left back side piece 1-1-1 of the chair back part 1, the other end of the left main handle 1-4-II is in sliding connection with one end of the left auxiliary handle 2-4-II, the other end of the left auxiliary handle 2-4-II is in sliding connection with a left upper frame cross piece 1-2-3 (which can be regarded as the same piece with the left seat side piece 1-1-2) fixedly connected with the left side of the seat piece 2-2, one end of the right main handle 3-4-II is in sliding connection with the right back side piece 2-1-1 of the chair back part 1, the other end of the right main handle 3-4-II is in sliding connection with one end of the right auxiliary handle 4-4-II, the other end of the right auxiliary handle 4-4-II is in sliding connection with the right upper frame transverse piece 2-2-3 (which can be regarded as the same piece with the right seat side piece 2-1-2) fixedly connected with the right side of the seat piece 2-2, and the seat piece 2 is in sliding connection; ③ The back frame component 1-1 of the chair back component 1 is provided with a fixed back inner piece G-2-1 and a movable back inner piece H-2-1, two ends of the three fixed back inner pieces G-2-1 are respectively fixedly connected with two back cross pieces 2-1-1, and the movable back inner piece H-2-1 is hinged with the back cross piece 2-1-1 at the upper part of the back frame component 1-1; ④ The two groups of locking assemblies 5 are two groups of hook-type locking assemblies 5-G, two hook end pieces 1-5-G of the two groups of hook-type locking assemblies are respectively and slidably connected to the left upper frame cross piece 1-2-3 and the right upper frame cross piece 2-2-3, and two positioning pins 2-5-G of the two groups of hook-type locking assemblies are respectively and fixedly connected to the left back side piece 1-1-1-1 and the right back side piece 2-1-1-1 of the chair back part 1 on the same side; ⑤ The lower end of the main support 1-3 of the chair frame member is free of the loose pulley 9-3. The two-dot chain line pattern in the lower left part of fig. 4 shows the dual-purpose chair in the low position.
Through the structure, the telescopic dual-purpose office and study chair for sitting and lying has two structural forms of guide rail kinematic pair connection of the first example and fixed connection of the second example. The specific operation and action are as follows.
1. Example one-main operation and linkage of the connection form of the left and right guide rail kinematic pairs.
When the two locking pieces 1-5 of the two groups of locking assemblies 5 are tightly fixed on the left upper frame transverse piece 1-2-3 and the right upper frame transverse piece 2-2-3 through screw thread pairs, the locking assemblies 5 are in a locking state, and the chair is in a high sitting position. At this time, the left sub-armrest 3-4-I and the right sub-armrest 6-4-I, which are fixedly connected to the left small connecting member 1-4-I and the right small connecting member 4-4-I, are on the same plane as the seat member 2-2 of the seat member 2. Releasing the two locking pieces 1-5-I, and enabling the chair back part 1 to rotate backwards, bringing the following linkage: ① The left parallelogram mechanism and the right parallelogram mechanism rotate, the seat part 2-2, the left upper frame cross member 1-2-3, the right upper frame cross member 2-2-3, the left lower frame cross member 1-3-3 and the right lower frame cross member 2-3 translate downwards and backwards at the same time, the downward translation distance of the seat part 2-2, the left upper frame cross member 1-2-3 and the right upper frame cross member 2-2-3 is large, the downward translation distance of the left lower frame cross member 1-3-3 and the right lower frame cross member 2-3-3 is small, The distance between the left small connecting piece 1-4-I and the right small connecting piece 4-4-I is reduced, so that the left auxiliary handrail 3-4-I and the right auxiliary handrail 6-4-I which are fixedly connected to the left lower frame transverse piece 1-3-3 and the right lower frame transverse piece 2-3-3 are gradually higher than the seat piece 2-2; ② Meanwhile, as the front and back positions of the seat part 2-2 and the left small connecting piece 1-4-I and the right small connecting piece 4-4-I are shifted and misplaced, the seat part 2-2 is forced to move forwards along the left and right guide rail kinematic pairs in the process of making the left pushing piece 4-2, the right pushing piece 5-2, the left small connecting piece 1-4-I and the right small connecting piece 4-4-I move at the same distance; ③ The rear end is connected with the shaft piece 5-3, and the middle front end is connected with the telescopic piece 7-3 which is formed by moving and connecting the two seat side pieces 1-2, the seat piece 2-2 and the seat cross piece 3-2 of the seat part 2, is pulled back by the shaft piece 5-3 and translates downwards; ④ After the auxiliary supporting piece 4-3 fixedly connected to the telescopic piece 7-3 supports the ground, the seat piece 2-2 is extended to a low position, the left auxiliary armrest 3-4-I and the right auxiliary armrest 6-4-I are higher than the seat piece 2-2 and are positioned at a high position, and the left auxiliary armrest 3-4-I and the right auxiliary armrest 6-4-I hinged to the left armrest 2-4-I and the right armrest 2-4-I are overturned backwards. Simultaneously, the telescopic piece 7-3 is placed on the shaft piece 5-3 and the seat cross piece 3-2, and the distance between the seat piece 2-2 and the chair back part 1 is pulled and connected; ⑤ In the low position, the person lies on the seat 2-2, the telescopic part 7-3 and the chair back part 1, the arms rest on the raised left armrest 2-4-I, the right armrest 2-4-I, the left auxiliary armrest 3-4-I and the right auxiliary armrest 6-4-I, and the feet rest on the ground. The two positioning pieces II8-3 arranged on the left front main supporting piece 1-1-3 and the right front main supporting piece 3-1-3 are respectively placed on the left lower frame transverse piece 1-3-3 and the right lower frame transverse piece 2-3-3, and the two positioning pieces II8-3 increase the supporting rigidity of the two parallelogram mechanisms. The back component 1 is reversely rotated, the chair is contracted to be restored to the high sitting position by reverse linkage, and the two locking pieces 1-5 of the two groups of locking components 5 are again fastened on the left upper frame cross piece 1-2-3 and the right upper frame cross piece 2-2-3. The movable wheels 9-3 arranged on the left front main support piece 1-1-3 and the right front main support piece 3-1-3 can facilitate the pushing and moving of the empty chair and the forward and backward movement during sitting.
2. Example two-main operations and linkage of the form of a solid connection.
When the two hook end pieces 1-5-G of the two groups of hook type locking assemblies 5-G respectively hook the two positioning pins 2-5-G fixedly connected to the left back side piece 1-1-1 and the right back side piece 2-1-1 of the chair back component 1, the two groups of hook type locking assemblies 5-G are in a locking state, the chair is in a high-position sitting position, the armrest assemblies II4-II are in high positions on two sides of the chair seat component 2, and the top surfaces of the two auxiliary supporting pieces 4-3 are propped against the lower surface of the seat component 2-2 and are positioned in a vertical position. The two hook end pieces 1-5-G are separated from the two positioning pins 2-5-G, namely, after the two groups of hook locking assemblies 5-G are loosened, the chair back part 1 is rotated backwards, so that the following linkage is brought: ① The left parallelogram mechanism and the right parallelogram mechanism rotate, and the seat part 2-2, the left lower frame cross piece 1-3-3 and the right lower frame cross piece 2-3-3 translate downwards at the same time; ② The two auxiliary supporting pieces 4-3 rotate backwards around the shaft piece 5-3 and are positioned by the two positioning pieces I3-1 arranged on the two back side pieces 1-1-1 of the chair back part 1, and the two positioning pieces II8-3 arranged on the left front main supporting piece 1-1-3 and the right front main supporting piece 3-1-3 rest on the left lower frame transverse piece 1-3-3 and the right lower frame transverse piece 2-3-3 on the same side. The seat 2-2 is in a lying position. Two positioning pieces II8-3 arranged on the left front main supporting piece 1-1-3 and the right front main supporting piece 3-1-3 are respectively placed on the left lower frame transverse piece 1-3-3 and the right lower frame transverse piece 2-3-3, and the two positioning pieces II8-3 increase the supporting rigidity of the two parallelogram mechanisms; ③ One end of a left main handle 1-4-II and a right main handle 3-4-II of the armrest assembly II4-II rotate around a left back side piece 1-1-1-1 and a right back side piece 2-1-1-1 respectively, the other ends of the left main handle 1-4-II and the right main handle 3-4-II rotate with one ends of a left auxiliary handle 2-4-II and a right auxiliary handle 4-4-II respectively, the other ends of the left auxiliary handle 2-4-II and the right auxiliary handle 4-4-II rotate around left and right side parts of the seat part 2 respectively, the lowest position of the seat part 2 on both sides of the seat part 2 at the armrest assembly II4-II when the seat part 2-2 is in the lowest lying position; ④ The movable back inner H-2-1 is rotated backward around the back cross member 2-1-1 located at the upper portion of the back frame assembly 1-1, extending the length of the back member 1. The head rests on the movable back inner part H-2-1, the person lies on the back part 1 and the seat part 2-2, the arms rest on the left main handle 1-4-II, the right main handle 3-4-II, the left auxiliary handle 2-4-II and the right auxiliary handle 4-4-II, and the feet rest on the ground. The back component 1 is reversely rotated, the chair is contracted by reverse linkage, the two hook end pieces 1-5-G of the two groups of hook locking components 5-G are buckled with the two positioning pins 2-5-G again, the hook locking components 5-G are in a locking state, the top surfaces of the two auxiliary supporting components 4-3 are propped against the lower surface of the seat component 2-2 again, and the two auxiliary supporting components are positioned in a vertical position and restored to a high-position sitting position.
In summary, the invention uses the reverse design thought of reducing the chair seat, uses a proper mechanism, simplifies the structure, is simple and convenient to use, and omits a foot rest device; by linkage, when the seat is in a high position, the chair is contracted and is in a sitting position; when the chair seat is in a low position, the chair stretches and is in a lying position, so that sitting and lying dual purposes are realized; in particular to the use characteristics of a sitting and lying dual-purpose student chair, namely, when the chair seat is in a high position, the chair back is low and armless; when the chair seat is in a low position, the chair back is long and is provided with armrests. Due to the characteristics of expansion and contraction and the like, the method comprises the following steps: ① Besides meeting the physical characteristics of sitting and lying of a human body, the device has simple and compact structure and simple and reliable operation; ② Low cost, small occupied space and small area; ③ The volume of the packaging box can be minimized by slightly disassembling, and the packaging and logistics cost is reduced. Therefore, the multifunctional chair has wider application range, realizes popular consumption, and achieves the aims of improving office and learning efficiency while eliminating or relieving sedentary hazard and building up body.
Claims (8)
1. The utility model provides a telescopic dual-purpose office and study chair for sitting and lying, it comprises back of the chair part, seat support part, chair frame part and locking subassembly, its characterized in that back of the chair part (1) constitute by back frame subassembly (1-1) and many back internals (2-1), back frame subassembly (1-1) by two back side spare (1-1-1) and many back cross-pieces (2-1-1), two back side spare (1-1) be left back side spare (1-1-1) and right back side spare (2-1-1-1), the both ends of many back cross-pieces (2-1-1) respectively with the suitable position of two back side spare (1-1-1) link firmly, The multi-piece back inner piece (2-1) is connected to the proper position of the back frame assembly (1-1), the seat part (2) is composed of two seat side pieces (1-2), a seat part (2-2) and a seat transverse piece (3-2), the two seat side pieces (1-2) are a left seat side piece (1-1-2) and a right seat side piece (2-1-2), the left seat side piece (1-1-2) is fixedly connected to the left side of the seat part (2-2), the right seat side piece (2-1-2) is fixedly connected to the right side of the seat part (2-2), the seat transverse piece (3-2) is fixedly connected to the lower plane of the seat part (2-2), and the seat frame part (3) is composed of four main support pieces (1-3), Two upper frame cross members (2-3), two lower frame cross members (3-3), an auxiliary support member (4-3), a shaft member (5-3), a fixing member (6-3) and a handrail component I (4-I), wherein the four main support members (1-3) are a left front main support member (1-1-3), a left rear main support member (2-1-3), a right front main support member (3-1-3) and a right rear main support member (4-1-3), the two upper frame cross members (2-3) are a left upper frame cross member (1-2-3) and a right upper frame cross member (2-2-3), the two lower frame cross members (3-3) are a left lower frame cross member (1-3-3) and a right lower frame cross member (2-3-3), The front end of the left upper frame cross member (1-2-3) is movably connected with the upper end of the left front main support member (1-1-3), the rear end of the left upper frame cross member (1-2-3) is movably connected with the upper end of the left rear main support member (2-1-3) through the left end of the shaft member (5-3), the front end of the right upper frame cross member (2-2-3) is movably connected with the upper end of the right front main support member (3-1-3), the rear end of the right upper frame cross member (2-2-3) is movably connected with the upper end of the right rear main support member (4-1-3) through the right end of the shaft member (5-3), the shaft member (5-3) is connected with the auxiliary support member (4-3), The front end of the left lower frame cross member (1-3-3) is movably connected with the lower part of the left front main support member (1-1-3), the rear end of the left lower frame cross member (1-3-3) is movably connected with the lower part of the left rear main support member (2-1-3), the front end of the right lower frame cross member (2-3-3) is movably connected with the lower part of the right front main support member (3-1-3), the rear end of the right lower frame cross member (2-3-3) is movably connected with the lower part of the right rear main support member (4-1-3), the two ends of the fixing member (6-3) are fixedly connected with the proper positions of the main support member (1-3), The left four-bar mechanism formed by the left upper frame transverse member (1-2-3), the left lower frame transverse member (1-3-3), the left front main support member (1-1-3) and the left rear main support member (2-1-3) is a left parallelogram mechanism, the right four-bar mechanism formed by the right upper frame transverse member (2-2-3), the right lower frame transverse member (2-3-3), the right front main support member (3-1-3) and the right rear main support member (4-1-3) is a right parallelogram mechanism, The armrest component I (4-I) consists of a left small connecting piece (1-4-I), a left armrest (2-4-I), a left auxiliary armrest (3-4-I), a right small connecting piece (4-4-I), a right armrest (5-4-I) and a right auxiliary armrest (6-4-I), one end of the left small connecting piece (1-4-I) is fixedly connected to a left lower frame transverse piece (1-3-3) of the chair frame component (3), the other end of the left small connecting piece (1-4-I) is fixedly connected to a left armrest (2-4-I), the left auxiliary armrest (3-4-I) is connected to the left armrest (2-4-I), one end of the right small connecting piece (4-4-I) is fixedly connected to a right lower frame transverse piece (2-3-3) of the chair frame component (3), The other end of the right small connecting piece (4-4-I) is fixedly connected with a right armrest (5-4-I), the right armrest (5-4-I) is connected with a right auxiliary armrest (6-4-I), the connection between the seat part (2) and the chair frame part (3) is the connection between the left side part of the seat part (2) and the left upper frame cross piece (1-2-3) of the chair frame part (3), the connection between the right side part of the seat part (2) and the right upper frame cross piece (2-2-3) of the chair frame part (3), the left back side part (1-1-1) of the chair back part (1) is connected with the left back main support piece (2-1-3) of the chair frame part (3), The right back side piece (2-1-1) of the chair back part (1) is connected with the right rear main support piece (4-1-3) of the chair frame part (3), the left side part of the chair seat part (2) is connected with the left upper frame transverse piece (1-2-3) of the chair frame part (3), the right side part of the chair seat part (2) is connected with the right upper frame transverse piece (2-2-3) of the chair frame part (3), and the locking assembly (5) is arranged on two connecting pieces with relative motion and is realized by the following steps: one end of the locking component (5) is arranged on any piece which forms a left parallelogram mechanism and a right parallelogram mechanism, The other end of the locking component (5) is arranged on an adjacent side piece of any piece on the same parallelogram mechanism.
2. The telescopic sitting and lying dual-purpose office and learning chair according to claim 1, wherein the left side part of the chair seat part (2) and the left upper frame cross member (1-2-3) of the chair frame part (3) are connected by a left guide rail kinematic pair of the left seat side member (1-1-2) of the chair seat part (2) and the left upper frame cross member (1-2-3) of the chair frame part (3); the right side part of the seat part (2) and the right upper frame transverse part (2-2-3) of the seat part (3) are connected by a right seat side part (2-1-2) of the seat part (2) and a right guide rail kinematic pair of the right upper frame transverse part (2-2-3) of the seat part (3), the upper end part of the auxiliary supporting part (4-3) is fixedly connected with the rear part of the telescopic part (7-3), and the cavity formed by the seat part (2-2), the two seat side parts (1-2) and the seat transverse part (3-2) of the seat part (2) is movably connected with the front part of the telescopic part (7-3).
3. The telescopic sitting and lying dual-purpose office and learning chair according to claim 1, wherein the connection of the left side part of the seat part (2) and the left upper frame cross member (1-2-3) of the seat frame part (3) is the fixed connection of the seat part left side (2-2) of the seat part (2) and the left upper frame cross member (1-2-3) of the seat frame part (3); the right side part of the seat part (2) and the right upper frame transverse part (2-2-3) of the seat part (3) are fixedly connected with the right side of the seat part (2-2) of the seat part (2) and the right upper frame transverse part (2-2-3) of the seat part (3), the shaft part (5-3) is movably connected with the auxiliary supporting part (4-3), and the back side part (1-1-1) of the back part (1) is provided with a positioning part I (3-1).
4. The telescopic sitting and lying dual-purpose office and learning chair according to claim 1 is characterized in that a left pushing piece (4-2) is fixedly connected to a left seat side piece (1-1-2) of the seat part (2), the left pushing piece (4-2) is movably connected with the left small connecting piece (1-4-I), a right pushing piece (5-2) is fixedly connected to a right seat side piece (2-1-2) of the seat part (2), and the right pushing piece (5-2) is movably connected with the right small connecting piece (4-4-I).
5. The telescopic sitting and lying dual-purpose office and learning chair according to claim 1, wherein a handrail component II (4-II) is arranged between the chair back component (1) and the chair seat component (2), the handrail component II (4-II) is composed of a left main handle (1-4-II), a left auxiliary handle (2-4-II), a right main handle (3-4-II) and a right auxiliary handle (4-4-II), one end of the left main handle (1-4-II) is movably connected with a left back side piece (1-1-1) of the chair back component (1), the other end of the left main handle (1-4-II) is movably connected with one end of the left auxiliary handle (2-4-II), the other end of the left auxiliary handle (2-4-II) is movably connected with the left side part of the chair seat component (2), one end of the right main handle (3-4-II) is movably connected with one end of the back side piece (1-1-1-1) of the chair back component (1-4-II), the other end of the left auxiliary handle (2-4-II) is movably connected with the other end of the back side piece (1-4-2), the other end of the right auxiliary handle (4-4-II) is movably connected with the right side part of the seat part (2).
6. The telescopic dual-purpose office and study chair according to claim 1, wherein the locking assembly (5) is arranged on the two connecting pieces which are movably connected, and is realized by the following steps: the locking assembly (5) is a locking piece (1-5), the locking piece (1-5) is movably connected with the proper position of the seat part (2), and the locking piece (1-5) and the upper transverse piece (2-3) can be locked and connected.
7. The telescopic sitting and lying dual-purpose office and learning chair according to claim 1, wherein the left front main support (1-1-3) and the right front main support (3-1-3) are provided with positioning pieces II (8-3).
8. The telescopic sitting and lying dual-purpose office and learning chair according to claim 1, wherein the lower ends of the plurality of main supporting pieces (1-3) of the chair frame component (3) are provided with movable wheels (9-3).
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| CN201711126075.4A CN109770593B (en) | 2017-11-14 | 2017-11-14 | Telescopic chair for sitting and lying |
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| CN111728406A (en) * | 2020-07-08 | 2020-10-02 | 江山市奇栖正机电科技有限公司 | The back of a reclining chair for students |
| CN111904191A (en) * | 2020-08-20 | 2020-11-10 | 江山市奇栖正机电科技有限公司 | Linkage mechanism of seat back and seat |
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| CN208709036U (en) * | 2017-11-14 | 2019-04-09 | 江山市奇栖正机电科技有限公司 | Telescopic dual purposes of sitting and lying office, learning chair |
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| CN100455234C (en) * | 2006-12-08 | 2009-01-28 | 张志回 | Multifunctional folding chair |
| CN201790356U (en) * | 2010-08-10 | 2011-04-13 | 浙江泰普森休闲用品有限公司 | Sitting and lying double-purpose folding chair |
| CN202536740U (en) * | 2012-03-23 | 2012-11-21 | 郎洪明 | Dual-purpose chair for sitting and lying |
| CN103315536A (en) * | 2013-06-17 | 2013-09-25 | 李建国 | Computer chair associated with chair, computer desk and flat-panel display bracket |
| CN204617580U (en) * | 2015-03-17 | 2015-09-09 | 张建明 | Can at the Novel chair sat and switch fast between lying |
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