Height-adjustable chair

By bending the support rod, the difference in the bent distance between the long connecting end and the short connecting end is used to achieve flexible adjustment of the chair height, solving the problem of single height adjustment method in the prior art, and providing convenient and low-cost Chair height adjustment plan.

CN222129739UInactive Publication Date: 2024-12-10SHANGHAI HUJING IND CO LTD
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Patent Information

Application Number
CN202420891990.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-26
Publication Date
2024-12-10
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing chair height adjustment method is single, which is inconvenient for people with low height. It is necessary to achieve flexible adjustment of chair height that is different from that on the market.

Method used

The support rod with a bent setting is used to adjust the height of the chair through the difference in the distance between the long connecting end and the short connecting end. The bending characteristics of the support rod allow the chair body to be removed without the need for a knob or telescopic rod. and install to change height.

Benefits of technology

It realizes flexible adjustment of chair height, simple and fast operation, reduces production costs, and improves the convenience of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of chairs, and particularly relates to a height-adjustable chair, which comprises a chair main body, the chair main body comprises an upper frame and a lower frame, a chair sleeve can be sleeved on the upper frame, a connecting piece is arranged between the upper frame and the lower frame, the lower end of the upper frame is connected with the connecting piece, and the upper end of the lower frame is connected with the connecting piece. The lower frame is composed of a plurality of supporting rods, bending portions are arranged at the middle ends of the supporting rods, the two ends of each supporting rod are a long connecting end and a short connecting end respectively, the distance between the long connecting ends and the bending portions is larger than the distance between the short connecting ends and the bending portions, and when the long connecting ends are connected with the connecting pieces, the short connecting ends make contact with the ground. When the supporting rods are detached to enable the short connecting ends to be connected with the connecting pieces, the long connecting ends make contact with the ground, the height of the chair body is in a low state, and the height-adjustable chair is simple in structure, different from a mode in the market and capable of being adjusted.
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Description

Technical Field

[0001] The utility model belongs to the technical field of chairs, in particular to a chair with adjustable height. Background Art

[0002] A chair is something for people to rest on, usually consisting of chair legs and a backrest. The four legs of chairs currently on the market are fixed, which is very simple for adults to sit on, but for people who are not tall, they need to use other tools to flip up the chair, which is very inconvenient. In order to solve this problem, chairs are now equipped with telescopic functions, which can adjust the height by adjusting the chair legs. Currently, the height of chairs on the market can only be adjusted in this way, which is too simple. Therefore, a chair with adjustable height is needed that is different from the current method on the market. Summary of the invention

[0003] The utility model aims to provide a chair with a simple structure and adjustable height, which is different from the methods on the market.

[0004] The purpose of the utility model is achieved in this way:

[0005] A chair with adjustable height comprises a chair body, wherein the chair body comprises an upper frame and a lower frame, wherein a chair cover can be put on the upper frame, a connecting piece is provided between the upper frame and the lower frame, wherein the lower end of the upper frame is connected to the connecting piece, and the upper end of the lower frame is connected to the connecting piece, wherein the lower frame is a plurality of support rods, wherein a bending portion is provided at the middle end of the support rod, and wherein the two ends of the support rod are respectively a long connecting end and a short connecting end, wherein the distance between the long connecting end and the bending portion is longer than the distance between the short connecting end and the bending portion, wherein when the long connecting end is connected to the connecting piece, the short connecting end contacts the ground, and the height of the chair body is at a relatively high state, and when the support rod is disassembled to connect the short connecting end to the connecting piece, the long connecting end contacts the ground, and the height of the chair body is at a relatively low state.

[0006] Furthermore, the connecting member is provided with an upper connecting hole and a lower connecting hole respectively, and the supporting rod can be inserted into the lower connecting hole to be connected with the connecting member.

[0007] Furthermore, the ends of the long connection end and the short connection end are both provided with a mounting portion, and the mounting portion is provided with an elastic member that can be retracted inwardly. When the long connection end or the short connection end is connected to the connecting member, the elastic member is stuck on the inner surface of the lower connecting hole.

[0008] Furthermore, a mounting hole is laterally formed on the inner side of the connecting piece, and a fixing rod is provided in the mounting hole.

[0009] Furthermore, the connecting member includes a connecting tube and two bent tubes, the mounting hole is arranged on the inner side of the connecting tube, and the bent tubes are oppositely mounted on the connecting tube.

[0010] Furthermore, the support rods and the connecting members are arranged in pairs front and back, and the upper frame includes a front support frame and a rear support frame arranged in pairs, and the length of the front support frame is longer than that of the rear support frame.

[0011] Furthermore, the seat cover is provided with a plurality of connecting parts, and the seat cover is connected to the front support frame and the rear support frame through the connecting parts.

[0012] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0013] The utility model discloses a chair with adjustable height, comprising a chair body, wherein the chair body comprises an upper frame and a lower frame, wherein a chair cover can be sleeved on the upper frame, a connecting piece is arranged between the upper frame and the lower frame, the lower end of the upper frame is connected to the connecting piece, the upper end of the lower frame is connected to the connecting piece, the lower frame is a plurality of support rods, the middle end of the support rods is provided with a bending portion, the two ends of the support rods are respectively a long connecting end and a short connecting end, the distance between the long connecting end and the bending portion is longer than the distance between the short connecting end and the bending portion, when the long connecting end is connected to the connecting piece, the short connecting end contacts the ground, at which time the height of the chair body is in a relatively high state, when the support rods are disassembled to connect the short connecting end to the connecting piece, the long connecting end contacts the ground, at which time the height of the chair body is in a relatively low state, the utility model realizes height adjustment by adopting a support rod with a bending arrangement, and the height adjustment chairs currently on the market The height is usually achieved by adjusting the telescopic rod with a knob. The utility model does not require a knob and a telescopic rod, but only requires the bending characteristic of the support rod. Since the distance between the long connection end and the bending portion is longer than the distance between the short connection end and the bending portion, when the short connection end is in contact with the ground, the long connection end supports the upper frame. The long connection end is longer than the short connection end. Therefore, when the long connection end supports the upper frame, the chair body reaches the highest height. When the long connection end is in contact with the ground, the short connection end supports the front upper frame. The short connection end is shorter than the long connection end. When the short connection end supports the front upper frame, the height of the chair body reaches the highest height reached, thereby completing the height change. The utility model does not require pressing other buttons or other things. It only requires the support rod to be detachable and installed at both ends to change the height of the chair body. It is convenient and fast, simple to operate, and has low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a stereogram of the utility model.

[0015] Figure 2 It is a schematic diagram of the utility model with the chair cover removed.

[0016] Figure 3 It is an exploded view of the utility model.

[0017] Figure 4 It is a three-dimensional diagram of the utility model on the shelf.

[0018] Figure 5 It is a connection schematic diagram of the connecting piece and the fixing rod of the utility model.

[0019] Figure 6 It is a stereoscopic diagram of the connecting piece of the utility model.

[0020] Figure 7 It is a three-dimensional diagram of the support rod of the utility model.

[0021] Figure 8 It is a height schematic diagram of the utility model chair main body being higher than the main body.

[0022] Fig. 9 It is a height schematic diagram of the lower main body of the chair of the utility model.

[0023] The meaning of the symbols in the figure:

[0024] 1-chair body; 2-upper frame; 3-lower frame; 4-chair cover; 5-connecting piece; 6-support rod; 7-bending part; 8-long connecting end; 9-short connecting end; 10-upper connecting hole; 11-lower connecting hole; 12-elastic piece;

[0025] 13-mounting hole; 14-fixing rod; 15-connecting pipe; 16-bending pipe; 17-front support frame; 18-rear support frame. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with specific embodiments:

[0027] A chair with adjustable height comprises a chair body 1, wherein the chair body 1 comprises an upper frame 2 and a lower frame 3, wherein a chair cover 4 can be sleeved on the upper frame 2, wherein a connecting piece 5 is provided between the upper frame 2 and the lower frame 3, wherein the lower end of the upper frame 2 is connected to the connecting piece 5, and the upper end of the lower frame 3 is connected to the connecting piece 5, wherein the lower frame 3 comprises a plurality of support rods 6, wherein a bending portion 7 is provided at the middle end of the support rods 6, wherein the two ends of the support rods 6 are respectively a long connecting end 8 and a short connecting end 9, wherein the distance between the long connecting end 8 and the bending portion 7 is longer than the distance between the short connecting end 9 and the bending portion 7, wherein when the long connecting end 8 is connected to the connecting piece 5, the short connecting end 9 contacts the ground, and at this time, the height of the chair body 1 is in a relatively high state, and when the support rods 6 are disassembled to connect the short connecting end 9 to the connecting piece 5, the long connecting end 8 contacts the ground, and at this time, the height of the chair body 1 is in a relatively low state.

[0028] The utility model is a chair with adjustable height, comprising a chair body 1, wherein the chair body 1 comprises an upper frame 2 and a lower frame 3, wherein a chair cover 4 can be sleeved on the upper frame 2, a connecting piece 5 is arranged between the upper frame 2 and the lower frame 3, wherein the lower end of the upper frame 2 is connected to the connecting piece 5, and the upper end of the lower frame 3 is connected to the connecting piece 5, wherein the lower frame 3 is a plurality of support rods 6, wherein a bending portion 7 is arranged at the middle end of the support rod 6, and wherein the two ends of the support rod 6 are respectively a long connecting end 8 and a short connecting end 9, wherein the distance between the long connecting end 8 and the bending portion 7 is longer than the distance between the short connecting end 9 and the bending portion 7, wherein when the long connecting end 8 is connected to the connecting piece 5, the short connecting end 9 contacts the ground, and at this time the height of the chair body 1 is in a relatively high state, and when the support rod 6 is disassembled to connect the short connecting end 9 to the connecting piece 5, the long connecting end 8 contacts the ground, and at this time the height of the chair body 1 is in a relatively low state, the utility model realizes height adjustment by adopting the support rod 6 with a bending arrangement, which is currently available on the market. The height of a chair is usually adjusted by using a knob to adjust the telescopic rod. The present invention does not require a knob or a telescopic rod, but only requires the bending property of the support rod 6. Since the distance between the long connection end 8 and the bending portion 7 is longer than the distance between the short connection end 9 and the bending portion 7, when the short connection end 9 is in contact with the ground, the long connection end 8 supports the upper frame 2. The long connection end 8 is longer than the short connection end 9. Therefore, when the long connection end 8 supports the upper frame 2, the chair body 1 reaches the highest height. When the long connection end 8 is in contact with the ground, the short connection end 9 supports the front upper frame 2. The short connection end 9 is shorter than the long connection end 8. When the short connection end 9 supports the front upper frame 2, the height of the chair body 1 reaches the highest height reached, thereby completing the height change. The present invention does not require pressing other buttons or other things. It only requires the support rod 6 to be detachable and installed at both ends to change the height of the chair body 1. It is convenient and fast, simple to operate, and has low production cost.

[0029] Preferably, the connecting member 5 is respectively provided with an upper connecting hole 10 and a lower connecting hole 11, and the support rod 6 can be inserted into the lower connecting hole 11 to be connected to the connecting member 5, and the connection is stable. The upper frame 2 is connected to the lower frame 3 through the connecting member 5. The specific method is to insert the rod into the hole. When a person sits on the chair, the connection position will also be more stable.

[0030] Preferably, the ends of the long connecting end 8 and the short connecting end 9 are provided with a mounting portion, and the mounting portion is provided with an elastic member 12 that can be retracted inwardly. When the long connecting end 8 or the short connecting end 9 is connected to the connecting member 5, the elastic member 12 is stuck in the inner surface of the lower connecting hole 11 to prevent the support rod 6 from falling out of the lower connecting hole 11 when the user picks up the chair. When the support rod 6 is connected to the connecting member 5, the outer surface of the elastic member 12 supports the inner surface of the lower connecting hole 11.

[0031] Preferably, a mounting hole 13 is laterally formed on the inner side of the connecting member 5, and a fixing rod 14 is arranged in the mounting hole 13 to increase stability, avoid sudden contraction, and improve safety.

[0032] Preferably, the connecting member 5 includes a connecting tube 15 and two bent tubes 16, the mounting hole 13 is arranged on the inner side of the connecting tube 15, and the bent tube 16 is installed on the connecting tube 15 in reverse, and is adapted to the shape of the support rod 6 when installed, so that after the support rod 6 is installed, the middle section of the bent tube 16 can still limit further inward movement.

[0033] Preferably, the support rod 6 and the connecting member 5 are arranged in pairs front and back, and the upper frame 2 includes a front support frame 17 and a rear support frame 18 arranged in pairs, and the length of the front support frame 17 is longer than that of the rear support frame 18.

[0034] Preferably, the seat cover 4 is provided with a plurality of connecting parts, and the seat cover 4 is connected to the front support frame 17 and the rear support frame 18 through the connecting parts.

[0035] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A height-adjustable chair, comprising a chair body (1), characterized in that: The chair body (1) comprises an upper frame (2) and a lower frame (3), the upper frame (2) can be covered with a chair cover (4), a connecting piece (5) is provided between the upper frame (2) and the lower frame (3), the lower end of the upper frame (2) is connected to the connecting piece (5), and the upper end of the lower frame (3) is connected to the connecting piece (5), the lower frame (3) is a plurality of support rods (6), the middle end of the support rod (6) is provided with a bending portion (7), and the two ends of the support rod (6) are respectively long connecting ends (8) and a short connecting end (9), the distance between the long connecting end (8) and the bending portion (7) is longer than the distance between the short connecting end (9) and the bending portion (7); when the long connecting end (8) is connected to the connecting piece (5), the short connecting end (9) contacts the ground, and at this time the height of the chair body (1) is in a relatively high state; when the support rod (6) is disassembled to connect the short connecting end (9) to the connecting piece (5), the long connecting end (8) contacts the ground, and at this time the height of the chair body (1) is in a relatively low state.

2. The height-adjustable chair according to claim 1, characterized in that: The connecting member (5) is provided with an upper connecting hole (10) and a lower connecting hole (11), respectively, and the supporting rod (6) can be inserted into the lower connecting hole (11) to be connected to the connecting member (5).

3. The height-adjustable chair according to claim 2, characterized in that: The ends of the long connecting end (8) and the short connecting end (9) are both provided with a mounting portion, and the mounting portion is provided with an elastic member (12) that can be retracted inwardly. When the long connecting end (8) or the short connecting end (9) is connected to the connecting member (5), the elastic member (12) is clamped on the inner surface of the lower connecting hole (11).

4. A height-adjustable chair according to claim 2 or 3, characterized in that: A mounting hole (13) is formed transversely on the inner side of the connecting piece (5), and a fixing rod (14) is arranged in the mounting hole (13).

5. The height-adjustable chair according to claim 4, characterized in that: The connecting member (5) comprises a connecting tube (15) and two bent tubes (16); the mounting hole (13) is arranged on the inner side of the connecting tube (15); and the bent tube (16) is mounted on the connecting tube (15) in reverse.

6. The height-adjustable chair according to claim 1, characterized in that: The support rods (6) and the connecting members (5) are arranged in pairs front and back, and the upper frame (2) comprises a front support frame (17) and a rear support frame (18) arranged in pairs, wherein the length of the front support frame (17) is longer than that of the rear support frame (18).

7. The height-adjustable chair according to claim 6, characterized in that: The seat cover (4) is provided with a plurality of connection parts, and the seat cover (4) is connected to the front support frame (17) and the rear support frame (18) via the connection parts.