Stretchable folding chair

Abstract

The utility model discloses a stretching folding chair and relates to the technical field of folding chairs. A stretching folding chair comprises a first folding support, a plurality of supporting flexible belts and a second folding support, the first folding support and the second folding support are rotationally connected through a rotating shaft in a crossed mode, and one ends of the supporting flexible belts are fixedly connected to the outer surface of the first folding support in a sleeving mode. The ends, away from the corresponding first folding supports, of the multiple supporting flexible belts are fixedly connected to the outer surfaces of the second folding supports in a sleeving mode, through inserting connection of the supporting plates, the armrests, first connecting plates, second connecting plates and inserting rods, the height of the armrests can be adjusted when the first sliding seats slide in the limiting sliding frames, and through inserting connection of the inserting rods and the corresponding through holes, the height of the armrests can be adjusted. According to the folding chair, the first sliding seat can be adjusted, so that the adjusted first sliding seat can be conveniently limited and fixed, the adjusted armrests can be fixed, the requirements of users with different heights and different sitting postures can be conveniently met, and the use comfort of the folding chair is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of folding chair, especially to a stretch folding chair. BACKGROUND

[0002] The stretch folding chair is a portable seat widely used in outdoor leisure, family use and office place, and is favored by users due to its compact structure, convenient carrying and storage characteristics, Chinese utility model patent, authorization announcement number "CN221105292U" discloses a folding chair, the utility model discloses a folding chair, and the folding chair comprises: a first folding support and a second folding support, the first folding support and the second folding support are pivotally connected between a storage position and an unfolded position, the minimum angle of the first folding support and the second folding support in the storage position is less than the minimum angle of the first folding support and the second folding support in the unfolded position, a flexible seat part is connected with the upper end of the first folding support and the second folding support respectively, a backrest support is connected with the first folding support, and a backrest is pivotally arranged on the backrest support between a backrest position and a desktop position, the backrest is adapted to lean in the backrest position and is adapted to place articles in the desktop position.

[0003] The above technical scheme lacks a handrail for support in the use process, and users often need a handrail to provide additional support, especially in the case of sitting for a long time, the handrail can effectively reduce the burden of arms and shoulders, improve the comfort of the sitting posture, and the height of the handrail of the common traditional folding chair is usually fixed, the handrail with fixed height cannot meet the diversified needs of users with different heights and different sitting postures in actual use, for users with higher physique, the handrail that is too low cannot provide effective elbow support, and long-term sitting will cause the muscles of the shoulders and arms to be in a tense state, and fatigue is easy to occur, and for people with shorter physique, the handrail that is too high cannot place the arms naturally, which not only affects the comfort of the sitting posture, but also may hinder the balance and posture adjustment of the body, therefore, the utility model provides a stretch folding chair. UTILITY MODEL CONTENTS

[0004] The utility model aims at least to solve one of the technical problems in the prior art, and provides a stretch folding chair, which can solve the problem that there is no handrail for support, and users often need a handrail to provide additional support, especially in the case of sitting for a long time, the handrail can effectively reduce the burden of arms and shoulders, improve the comfort of the sitting posture, and the height of the handrail of the common traditional folding chair is usually fixed.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a stretch folding chair, comprising:

[0006] The first folding support, the plurality of supporting flexible belts and the second folding support are rotationally connected through the rotating shafts, one end of each of the plurality of supporting flexible belts is fixedly sleeved on the outer surface of the first folding support, and the end of each of the plurality of supporting flexible belts away from the corresponding first folding support is fixedly sleeved on the outer surface of the second folding support;

[0007] The handrail adjusting structure is located on the first folding support and the second folding support.

[0008] The handrail adjusting structure comprises a supporting plate, a handrail, a first connecting plate, a second connecting plate, a second sliding seat and a limiting sliding frame, the supporting plate is rotationally sleeved on the outer surface of the second folding support, one end of the supporting plate away from the second folding support is clamped on the outer surface of the first folding support, the limiting sliding frame is fixedly connected to the top of the supporting plate, the first sliding seat is slidingly connected in the limiting sliding frame, the bottom end of the second connecting plate is rotationally connected in the first sliding seat, the top end of the second connecting plate is rotationally connected to the bottom of the handrail, the bottom end of the first connecting plate is rotationally connected to the top of the supporting plate, the bottom of the handrail is provided with a limiting sliding groove, the second sliding seat is slidingly connected in the limiting sliding groove, and the top end of the first connecting plate is rotationally connected in the second sliding seat.

[0009] Preferably, the handrail adjusting structure further comprises a spring, an adjusting sliding plate and a plug rod, the bottom of the supporting plate is provided with a through groove, the through groove is communicated with the interior of the limiting sliding frame, a plurality of through holes are formed in one side of the limiting sliding frame, the bottom of the first sliding seat is provided with an adjusting sliding groove, the adjusting sliding plate is slidingly connected in the adjusting sliding groove, the plug rod is fixedly connected to one side of the adjusting sliding plate, one end of the plug rod away from the adjusting sliding plate slidingly extends to the outside of the adjusting sliding groove and is plug-connected with the corresponding through hole, the spring is fixedly connected to one end of the adjusting sliding plate away from the plug rod, and one end of the spring away from the adjusting sliding plate is fixedly connected with the interior of the adjusting sliding groove.

[0010] Preferably, a positioning frame is welded on the outer surface of the second folding support, and the positioning frame is in a "C" shape.

[0011] Preferably, a backrest is rotationally sleeved on the outer surface of the second folding support, and the bottom of the backrest is in contact with the positioning frame.

[0012] Preferably, an anti-skid sleeve is fixedly sleeved on the horizontal rod at the bottom of the first folding support and the second folding support.

[0013] Preferably, the number of the handrail adjusting structures is two, and the two handrail adjusting structures are symmetrically arranged on the second folding support.

[0014] Compared with the prior art, the handrail adjusting structure has the advantages that:

[0015] 1. The stretchable folding chair, through the insertion of the supporting plate, the armrest, the first connecting plate, the second connecting plate and the insertion rod, the height of the armrest can be adjusted when the first sliding seat slides in the limiting slide rail, the first sliding seat after adjustment is fixed in position through the insertion of the insertion rod and the corresponding through hole, and the armrest after adjustment can be fixed, so that the needs of users of different heights and different sitting postures are met, and the comfort of use of the folding chair is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model is further illustrated below in combination with the drawings and embodiments:

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0018] Figure 2 It is a backrest structure schematic view of the utility model;

[0019] Figure 3 It is an armrest structure schematic view of the utility model;

[0020] Figure 4 It is a first sliding seat cross section structure schematic view of the utility model.

[0021] Reference signs: 1, first folding support; 2, second folding support; 3, supporting flexible belt; 4, supporting plate; 5, armrest; 6, backrest; 7, positioning frame; 8, first connecting plate; 9, second connecting plate; 10, through slot; 11, through hole; 12, limiting slide rail; 13, first sliding seat; 14, second sliding seat; 15, limiting sliding slot; 16, adjusting sliding slot; 17, spring; 18, adjusting sliding plate; 19, insertion rod. DETAILED DESCRIPTION

[0022] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the function of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0023] In the description of the utility model, it should be understood that the orientation description, such as the orientation or position relationship of the upper, lower, front, rear, left, right and the like indicated is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and it is not indicated or implied that the indicated device or element must have a specific orientation, a specific orientation and operation, so it cannot be understood as the limitation of the utility model.

[0024] In the description of the utility model, greater than, less than, exceed and the like are understood as not including the number, above, below, within and the like are understood as including the number. If the first, second are described, it is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0025] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection should be understood in a broad sense, and the person skilled in the art can determine the specific meaning of the above words in the utility model in combination with the specific content of the technical scheme.

[0026] Please refer to Figures 1-4 The utility model provides a technical scheme: a stretchable folding chair, which comprises:

[0027] The first folding support 1, the plurality of supporting flexible belts 3 and the second folding support 2 are rotationally connected through the cross shaft, one end of each of the plurality of supporting flexible belts 3 is fixedly sleeved on the outer surface of the first folding support 1, and the end of each of the plurality of supporting flexible belts 3 away from the corresponding first folding support 1 is fixedly sleeved on the outer surface of the second folding support 2.

[0028] The handrail adjusting structure is located on the first folding support 1 and the second folding support 2.

[0029] The handrail adjusting structure comprises a supporting plate 4, a handrail 5, a first connecting plate 8, a second connecting plate 9, a second sliding seat 14 and a limiting sliding frame 12, the supporting plate 4 is rotationally sleeved on the outer surface of the second folding support 2, one end of the supporting plate 4 away from the second folding support 2 is clamped on the outer surface of the first folding support 1, the limiting sliding frame 12 is fixedly connected to the top of the supporting plate 4, the first sliding seat 13 is slidably connected in the limiting sliding frame 12, the bottom end of the second connecting plate 9 is rotationally connected in the first sliding seat 13, the top end of the second connecting plate 9 is rotationally connected to the bottom of the handrail 5, the bottom end of the first connecting plate 8 is rotationally connected to the top of the supporting plate 4, the bottom of the handrail 5 is provided with a limiting sliding groove 15, the second sliding seat 14 is slidably connected in the limiting sliding groove 15, and the top end of the first connecting plate 8 is rotationally connected in the second sliding seat 14.

[0030] The handrail adjusting structure further comprises a spring 17, an adjusting sliding plate 18 and a plug rod 19, the bottom of the supporting plate 4 is provided with a through groove 10, the through groove 10 is communicated with the inside of the limiting sliding frame 12, a plurality of through holes 11 are formed in one side of the limiting sliding frame 12, the bottom of the first sliding seat 13 is provided with an adjusting sliding groove 16, the adjusting sliding plate 18 is slidingly connected in the inside of the adjusting sliding groove 16, the plug rod 19 is fixedly connected to one side of the adjusting sliding plate 18, one end of the plug rod 19 away from the adjusting sliding plate 18 slidingly extends to the outside of the adjusting sliding groove 16 and is plug-connected with the corresponding through hole 11, the spring 17 is fixedly connected to one end of the adjusting sliding plate 18 away from the plug rod 19, and one end of the spring 17 away from the adjusting sliding plate 18 is fixedly connected with the inside of the adjusting sliding groove 16.

[0031] The number of the handrail adjusting structure is two, and the two handrail adjusting structures are symmetrically arranged on the second folding support 2.

[0032] The outer surface of the second folding support 2 is welded with a positioning frame 7, the positioning frame 7 is a “C” shaped structure, the outer surface of the second folding support 2 is rotatably sleeved with a backrest 6, and the bottom of the backrest 6 is in contact with the positioning frame 7.

[0033] The horizontal rods at the bottom ends of the first folding support 1 and the second folding support 2 are fixedly sleeved with anti-skid sleeves.

[0034] Further, when the height of the handrail is adjusted, the user slides the adjusting sliding plate 18, so that the adjusting sliding plate 18 can compress the spring 17 under the guidance in the adjusting sliding groove 16, the movement of the adjusting sliding plate 18 drives the plug rod 19 to be separated from the corresponding through hole 11, so that the user can press down the handrail 5, the downward movement of the handrail 5 drives the first connecting plate 8 and the second connecting plate 9 to rotate, at the same time, the top end of the first connecting plate 8 drives the second sliding seat 14 to slide in the limiting sliding groove 15, and the bottom end of the second connecting plate 9 drives the first sliding seat 13 to slide in the limiting sliding frame 12, so that when the handrail 5 is adjusted to the appropriate height, the user releases the adjusting sliding plate 18, the adjusting sliding plate 18 can be reset under the support of the spring 17, so as to drive the plug rod 19 to be plug-connected with the through hole 11 corresponding to the position of the plug rod 19, thereby limiting and fixing the first sliding seat 13, so as to limit the height of the handrail 5, and the working principles of the two handrail adjusting structures are the same.

[0035] Further, when the folding chair needs to be folded, the user lowers the two handrails 5 to the lowest end, then pulls out one end of the supporting plate 4 clamped on the first folding support 1, so as to rotate the pulled-out supporting plate 4, then folds the first folding support 1 and the second folding support 2, and then rotates and folds the backrest 6, and the two rotated supporting plates 4 can be kept parallel to the folded folding chair.

[0036] The first sliding seat 13 can adjust the height of the armrest 5 when sliding in the limiting slide 12 under the insertion of the support plate 4, the armrest 5, the first connecting plate 8, the second connecting plate 9 and the insertion rod 19, and the insertion of the insertion rod 19 and the corresponding through hole 11, so as to conveniently limit and fix the adjusted first sliding seat 13, and then the adjusted armrest 5 can be fixed, so as to conveniently meet the needs of users with different heights and different sitting postures, and further improve the comfort of use of the folding chair.

[0037] Structure description: the first folding support 1 is one of the main support structures of the folding chair, and is connected with the second folding support 2 through a rotating shaft to realize the folding and unfolding functions of the chair;

[0038] The second folding support 2 cooperates with the first folding support 1 to form the frame of the folding chair, and is connected through the rotation of the rotating shaft, so that the chair can be converted between the folded and unfolded states;

[0039] The support flexible belt 3 is fixedly sleeved on the first folding support 1 at one end and fixedly sleeved on the second folding support 2 at the other end, and provides additional support force when the chair is unfolded, thereby enhancing the stability and load-bearing capacity of the chair;

[0040] The support plate 4 is rotatably sleeved on the second folding support 2 and is clamped on the first folding support 1, and serves as the support basis of the armrest adjusting structure to ensure that the armrest 5 can be stably installed on the chair;

[0041] The armrest 5 provides arm support for the user to improve the comfort of the sitting posture, and through the armrest adjusting structure, the user can adjust the height and angle of the armrest according to individual needs;

[0042] The backrest 6 is rotatably sleeved on the second folding support 2 and contacts the positioning frame 7 at the bottom to provide back support for the user and increase the stability and comfort of the sitting posture;

[0043] The positioning frame 7 is welded on the second folding support 2 and has a "C" shape structure, and is used to limit the rotation range of the backrest 6 to ensure that the backrest 6 can stably maintain the upright state when the chair is unfolded;

[0044] The first connecting plate 8 is rotatably connected at the bottom end to the support plate 4 and at the top end to the second sliding seat 14 at the bottom of the armrest 5, and connects the support plate 4 and the armrest 5 to realize the height and angle adjustment of the armrest;

[0045] The second connecting plate 9 is rotatably connected at the bottom end to the first sliding seat 13 and at the top end to the bottom of the armrest 5;

[0046] Limiting slide 12: fixedly connected at the top of the supporting plate 4, the first sliding seat 13 is slidably connected inside, used for limiting the sliding range of the first sliding seat 13, ensuring the stability and reliability of the handrail adjusting structure;

[0047] First sliding seat 13: slidably connected inside the limiting slide 12, the adjusting sliding groove 16 is formed at the bottom, through the sliding connection, the position of the handrail in the horizontal direction is adjusted;

[0048] Second sliding seat 14: slidably connected inside the limiting sliding groove 15 at the bottom of the handrail 5, and the first connecting plate 8 is jointly used to realize the height adjustment of the handrail in the vertical direction;

[0049] Spring 17: fixedly connected at one end of the adjusting sliding plate 18 away from the insertion rod 19, and the other end is fixedly connected with the inside of the adjusting sliding groove 16, providing elastic force for the insertion rod 19, ensuring that the insertion rod 19 can be stably inserted or pulled out of the through hole 11;

[0050] Adjusting sliding plate 18: slidably connected inside the adjusting sliding groove 16, and the insertion rod 19 is fixedly connected at one side. Through the sliding connection, the insertion rod 19 is extended and retracted, so as to control the locking and unlocking state of the handrail adjusting structure;

[0051] Insertion rod 19: fixedly connected at one side of the adjusting sliding plate 18, slidably extended to the outside of the adjusting sliding groove 16, and inserted with the corresponding through hole 11, through the insertion or pulling out of the through hole 11, the locking and unlocking function of the handrail adjusting structure is realized.

[0052] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, within the knowledge range possessed by ordinary skilled in the art, various changes can be made without departing from the purpose of the utility model.

Claims

1. An extendable folding chair, characterized in that, The utility model relates to a folding armchair, including: First folding support (1), a plurality of support flexible belt (3) and second folding support (2), first folding support (1) and second folding support (2) are connected by pivot cross rotation, one end of a plurality of support flexible belt (3) is fixedly sleeved on the outer surface of first folding support (1), and the end of a plurality of support flexible belt (3) away from corresponding first folding support (1) is fixedly sleeved on the outer surface of second folding support (2); Handrail adjusting structure, handrail adjusting structure is located on first folding support (1) and second folding support (2); Handrail adjusting structure includes support plate (4), handrail (5), first connecting plate (8), second connecting plate (9), second sliding seat (14) and limiting sliding frame (12), support plate (4) is rotatably sleeved on the outer surface of second folding support (2), and the end of support plate (4) away from second folding support (2) is clamped on the outer surface of first folding support (1); Wherein, limiting sliding frame (12) is fixedly connected at the top of support plate (4), the inside of limiting sliding frame (12) is slidably connected with first sliding seat (13), and the bottom of second connecting plate (9) is rotatably connected in the inside of first sliding seat (13), and the top of second connecting plate (9) is rotatably connected at the bottom of handrail (5); Wherein, the bottom of first connecting plate (8) is rotatably connected at the top of support plate (4), the bottom of handrail (5) is provided with limiting sliding slot (15), second sliding seat (14) is slidably connected in the inside of limiting sliding slot (15), and the top of first connecting plate (8) is rotatably connected in the inside of second sliding seat (14).

2. The folding chair of claim 1, wherein: The handrail adjusting structure further includes a spring (17), an adjusting slide plate (18), and a plug rod (19). The bottom of the support plate (4) is provided with a through slot (10) that is in communication with the inside of the limiting sliding frame (12). The limiting sliding frame (12) is provided with a plurality of through holes (11) on one side. Wherein, the bottom of first sliding seat (13) is provided with adjusting sliding slot (16), adjusting slide plate (18) is slidably connected in the inside of adjusting sliding slot (16), plug rod (19) is fixedly connected on one side of adjusting slide plate (18), and the end of plug rod (19) away from adjusting slide plate (18) slidably extends to the outside of adjusting sliding slot (16) and is plugged into the corresponding through hole (11). Wherein, spring (17) is fixedly connected on the end of adjusting slide plate (18) away from plug rod (19), and the end of spring (17) away from adjusting slide plate (18) is fixedly connected with the inside of adjusting sliding slot (16).

3. The folding chair of claim 1, wherein: The outer surface of the second folding support (2) is welded with a positioning frame (7), which is a "C" shaped structure.

4. The folding chair of claim 3, wherein: The outer surface of the second folding support (2) is rotatably sleeved with a backrest (6), and the bottom of the backrest (6) is in contact with the positioning frame (7).

5. The folding chair of claim 1, wherein: The horizontal rods at the bottom ends of the first folding support (1) and the second folding support (2) are each fixedly sleeved with an anti-skid sleeve.

6. The folding chair of claim 1, wherein: The number of handrail adjusting structures is two, and the two handrail adjusting structures are symmetrically arranged on the second folding support (2).

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