Portable folding chair

Abstract

The utility model discloses a portable folding chair which comprises a chair seat and a chair back, the chair seat is rotatably connected with the chair back, and first supporting mechanisms are symmetrically arranged on the two sides in a first fixing frame below the chair seat; the first supporting mechanism comprises a first rotating plate, the first rotating plate is rotationally arranged on the inner walls of the two sides of the first fixing frame, and the two ends of the first rotating plate are fixedly connected with first supporting legs; a stabilizing plate is arranged between the two first supporting mechanisms, first sliding grooves are formed in the first supporting legs, and the stabilizing plate is arranged in the first sliding grooves in a sliding mode through first sliding blocks. A fixing assembly used for fixing the stabilizing plate is arranged at the bottom of the first sliding groove. Second supporting mechanisms are symmetrically arranged at two ends of the bottom of the stabilizing plate; the second supporting mechanism comprises second supporting legs, the second supporting legs are rotationally arranged at the bottom of the stabilizing plate, a connecting rod is arranged between the two second supporting legs, and a third supporting leg is rotationally arranged on the connecting rod. The folding chair disclosed by the utility model can be adjusted to different heights according to conditions, is square after being folded, is convenient to store, and is high in practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of folding chairs, and in particular relates to a portable folding chair. Background Art

[0002] At present, as people's quality of life continues to improve, they often need to go camping in their spare time after work, and folding chairs are essential equipment for camping. A folding chair is a lightweight and stackable chair that is easy to carry and save space. However, existing folding chairs only have one folding and unfolding function and cannot be used in a variety of occasions. Utility Model Content

[0003] Based on the above background, the purpose of the utility model is to provide a portable folding chair.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A portable folding chair, comprising a seat and a backrest, wherein the seat and the backrest are rotatably connected, and the backrest is arranged above the seat and is close to the upper end surface of the seat and is flipped 90 degrees to open;

[0006] A first fixing frame is provided below the seat, and first supporting mechanisms are symmetrically provided on both sides of the first fixing frame;

[0007] The first supporting mechanism comprises a first rotating plate, which is rotatably arranged on the inner walls on both sides of the first fixing frame, and the two ends of the first rotating plate are fixedly connected to the first supporting legs;

[0008] A stabilizing plate is provided between the two groups of first supporting mechanisms, a first sliding groove is provided on the first supporting leg, and the stabilizing plate is slidably arranged in the first sliding groove through a first sliding block;

[0009] A fixing assembly for fixing the stabilizing plate is provided at the bottom of the first slide groove;

[0010] The second supporting mechanisms are symmetrically arranged at both ends of the bottom of the stabilizing plate;

[0011] The second supporting mechanism includes a second supporting leg, which is provided with two second supporting legs and is rotatably arranged at the bottom of the stabilizing plate. The second supporting leg is flipped downward relative to the stabilizing plate. A connecting rod is provided between the two second supporting legs, and a third supporting leg is rotatably arranged on the connecting rod. The third supporting leg is in an "M" shape.

[0012] Preferably, the fixing assembly comprises a U-shaped block, a second slide groove is provided on both the side of the first supporting leg close to the stabilizing plate and the side away from the stabilizing plate, a second slider is fixed on the U-shaped block, and the second slider is slidably connected to the second slide groove.

[0013] Preferably, two second slide grooves are provided on either side of the first supporting leg, two second sliding blocks are correspondingly provided on the U-shaped block, and the cross-section of the second slide groove is trapezoidal.

[0014] Preferably, a first storage groove is formed on the lower end surface of the seat, and the first storage groove is consistent in size with the stabilizing plate.

[0015] Preferably, second storage grooves are provided at both ends of the chair back, and a first armrest rod is rotatably provided in the second storage groove, and the first armrest rod can be flipped 90 degrees relative to the chair back toward the seat.

[0016] Preferably, a third receiving groove is provided at one end of the first handrail rod close to the seat, a second handrail rod is rotatably provided in the third receiving groove, a fixing groove is provided on the seat, and the second handrail rod is engaged with the fixing groove.

[0017] Preferably, the connecting rod is rotatably connected to a limiting mechanism, and the limiting mechanism includes a first rotating rod, an outer side surface of the first rotating rod is fixedly connected to one end of the third supporting leg, a limiting groove is provided on the first rotating rod, and a limiting block is provided on the connecting rod, and the limiting block and the limiting groove are slidably matched to limit the rotation angle of the first rotating rod.

[0018] Preferably, two limiting grooves are provided, which are symmetrically arranged at both ends of the first rotating rod.

[0019] The utility model has the following beneficial effects:

[0020] 1. The utility model can be used as a stool or a chair by providing a first supporting mechanism and a second supporting mechanism, and is suitable for a variety of scenes. After being folded, the square shape can be stored or used as a cushion, and is highly practical.

[0021] 2. The utility model provides an "M"-shaped third supporting leg with an inwardly concave arc line, which can be used on uneven ground and stabilizes the second supporting leg from the side, thereby improving the stability of the folding chair. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of another viewing angle of the utility model;

[0025] Figure 3 This is a schematic diagram of the split three-dimensional structure of the limit assembly of the utility model;

[0026] Figure 4 It is a three-dimensional structural schematic diagram of the chair seat and the first supporting mechanism of the utility model;

[0027] Figure 5 It is a schematic diagram of the split three-dimensional structure of the chair seat and the first fixing frame of the utility model;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the utility model after folding.

[0029] Wherein: 1. Seat; 11. First storage slot; 12. Fixed slot;

[0030] 2. Chair back; 21. Second storage slot; 22. First armrest bar; 23. Third storage slot; 24. Second armrest bar;

[0031] 3. The first fixing frame;

[0032] 4. First supporting mechanism; 41. First rotating plate; 42. First supporting leg; 43. First sliding slot;

[0033] 5. Stabilizing plate; 51. First sliding block;

[0034] 6. Limiting mechanism; 61. First rotating rod; 62. Limiting groove; 63. Limiting block;

[0035] 7. Fixed assembly; 71. U-shaped block; 72. Second slide groove; 73. Second slide block;

[0036] 8. Second supporting mechanism; 81. Second supporting leg; 82. Connecting rod; 83. Third supporting leg. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0040] like Figure 1-6 As shown, a portable folding chair comprises a seat 1 and a backrest 2, wherein the seat 1 and the backrest 2 are rotatably connected, and the backrest 2 is arranged above the seat 1 and is close to the upper end surface of the seat and can be flipped 90 degrees to open;

[0041] A first fixing frame 3 is provided below the seat 1, and first supporting mechanisms 4 are symmetrically provided on both sides of the first fixing frame 3;

[0042] The first supporting mechanism 4 comprises a first rotating plate 41, which is rotatably arranged on the inner walls of both sides of the first fixing frame 3, and first supporting legs 42 are fixedly connected to both ends of the first rotating plate 41;

[0043] A stabilizing plate 5 is provided between the two groups of first supporting mechanisms 4. A first sliding groove 43 is provided on the first supporting leg 42. The stabilizing plate 5 is slidably disposed in the first sliding groove 43 via a first sliding block 51.

[0044] A fixing assembly 7 for fixing the stabilizing plate 5 is provided at the bottom of the first slide groove 43;

[0045] The second supporting mechanisms 8 are symmetrically arranged at both ends of the bottom of the stabilizing plate 5;

[0046] The second supporting mechanism 8 includes a second supporting leg 81, which is provided with two and rotatably arranged at the bottom of the stabilizing plate 5. The second supporting leg 81 is flipped downward 90 degrees relative to the stabilizing plate 5 and opened. A connecting rod 82 is provided between the two second supporting legs 81, and a third supporting leg 83 is rotatably provided on the connecting rod 82, and the third supporting leg 83 is in an "M" shape.

[0047] When not in use, the second support mechanism 8 and the first support mechanism 4 are folded in sequence under the seat 1 and stored in the first fixing frame 3. The backrest 2 is folded above the seat 1 for easy storage and can also be used as a cushion. The first rotating plate 41 is pulled downward to open the first support leg 42, and the stabilizing plate 5 at the bottom of the seat 1 is slid along the first slide groove 43 to the lower end of the first support leg 42. At this time, the folding chair can be used as a low stool. If further height is required, the stabilizing plate 5 is fixed by the fixing assembly 7, and then rotated downward 90 degrees to open the second support leg 81, and the third support leg 83 is rotated. The "M"-shaped third support leg has an inwardly concave arc line, which can be used on uneven ground, and stabilizes the second support leg 81 from the side. At this time, it can be used as a chair.

[0048] Preferably, the fixing assembly 7 includes a U-shaped block 71, and a second slide groove 72 is provided on the side of the first supporting leg 7 close to the stabilizing plate 5 and the side away from the stabilizing plate 5, and a second slider 73 is fixed on the U-shaped block 71, and the second slider 73 is slidably connected to the second slide groove 72.

[0049] Preferably, two second slide grooves 72 are provided on any one side of the first supporting leg 7 , and two second sliding blocks 73 are correspondingly provided on the U-shaped block 71 . The cross section of the second slide groove 72 is a trapezoid.

[0050] When there is no need to fix the stabilizing plate 5, the U-shaped block 71 is clamped in the second slide groove 72 on the side away from the stabilizing plate 5. When it is needed, the U-shaped block 71 is slid out of the second slide groove 72 on the outside, and then slid and clamped into the second slide groove 72 on the side close to the stabilizing plate 5. The two sides of the U-shaped block 71 fix the stabilizing plate 5.

[0051] Preferably, a first receiving groove 11 is formed on the lower end surface of the seat 1 , and the first receiving groove 11 is consistent in size with the stabilizing plate 5 .

[0052] Preferably, the chair back 2 is provided with a second receiving groove 21 at both ends, and a first handrail rod 22 is rotatably provided in the second receiving groove 21 . The first handrail rod 22 can be flipped 90 degrees relative to the chair back 2 toward the seat 1 .

[0053] Preferably, a third receiving groove 23 is provided at one end of the first handrail rod 22 close to the seat 1 , a second handrail rod 24 is rotatably provided in the third receiving groove 23 , a fixing groove 12 is provided on the seat 1 , and the second handrail rod 24 is engaged with the fixing groove 12 .

[0054] Preferably, the connecting rod 82 is rotatably connected to a limiting mechanism 6, and the limiting mechanism 6 includes a first rotating rod 61, an outer side surface of the first rotating rod 61 is fixedly connected to one end of the third supporting leg 83, a limiting groove 62 is provided on the first rotating rod 61, and a limiting block 63 is provided on the connecting rod 82, and the limiting block 63 and the limiting groove 62 are slidably matched to limit the rotation angle of the first rotating rod 61.

[0055] Preferably, two limiting grooves 62 are provided, which are symmetrically arranged at two ends of the first rotating rod 61 .

[0056] After the third support leg 83 rotates until the lower end surface is in the same plane as the second support leg 81 , the end surface of the limiting groove 62 abuts against the limiting block 63 , and the third support leg 83 is restricted from rotating, thereby stabilizing the second support leg 81 .

[0057] The working principle of the utility model is as follows: the two sets of first support mechanisms 4 under the seat 1 are respectively turned downward 90 degrees, and after the first support legs 42 are rotated and opened, the stabilizing plate 5 arranged in the first storage groove 11 is slid to the bottom along the first slide groove 43, and only the first support mechanism 4 is opened to be used as a low stool;

[0058] The U-shaped block 71 slidably installed on the side of the first supporting leg 42 away from the stabilizing plate 5 is slid out and inserted into the second sliding groove 72 close to the stabilizing plate 5. The two sides of the U-shaped block 71 are located at the upper and lower sides of the stabilizing plate 5 to fix the stabilizing plate 5. Then, the second supporting leg 81 is rotated downward 90 degrees to open the second supporting leg 81, and the third supporting leg 83 is rotated. The limit block 63 limits the limit groove 62 to prevent the third supporting leg 83 from being pushed outward by the reaction force of the ground during the supporting process. The "M"-shaped third supporting leg 63 has an inwardly concave arc line, which can be used on uneven ground and stabilize the second supporting leg 81 from the side. At this time, it can be used as a chair.

[0059] Flip the chair back 2 upward to open it, rotate the first armrest bar 22 and the second armrest bar 24, insert the bottom of the second armrest bar 24 into the fixing groove 12, and the first armrest bar 22 and the second armrest bar 24 form a right angle of 90 degrees, which can be used as an armrest and also support the chair back 2.

[0060] When not in use, the second supporting mechanism 8, the stabilizing plate 5, and the first supporting mechanism 4 are folded and stored in the first fixing frame 3 in sequence, and the chair back 2 is rotated toward the upper end surface of the seat 1 to contact them. The folded chair is square in shape, which is convenient for storage and transportation and can also be used as a cushion.

[0061] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A portable folding chair, characterized in that: It comprises a seat and a backrest, the seat and the backrest are rotatably connected, the backrest is arranged above the seat and is flipped 90 degrees to open near the upper end surface of the seat; A first fixing frame is provided below the seat, and first supporting mechanisms are symmetrically provided on both sides of the first fixing frame; The first supporting mechanism comprises a first rotating plate, which is rotatably arranged on the inner walls on both sides of the first fixing frame, and the two ends of the first rotating plate are fixedly connected to the first supporting legs; A stabilizing plate is provided between the two groups of first supporting mechanisms, a first sliding groove is provided on the first supporting leg, and the stabilizing plate is slidably arranged in the first sliding groove through a first sliding block; A fixing assembly for fixing the stabilizing plate is provided at the bottom of the first slide groove; The second supporting mechanisms are symmetrically arranged at both ends of the bottom of the stabilizing plate; The second supporting mechanism includes a second supporting leg, which is provided with two second supporting legs and is rotatably arranged at the bottom of the stabilizing plate. The second supporting leg is flipped downward relative to the stabilizing plate. A connecting rod is provided between the two second supporting legs, and a third supporting leg is rotatably arranged on the connecting rod. The third supporting leg is in an "M" shape.

2. The portable folding chair according to claim 1, characterized in that: The fixing assembly comprises a U-shaped block, a second slide groove is provided on the side of the first supporting leg close to the stabilizing plate and the side away from the stabilizing plate, a second slider is fixed on the U-shaped block, and the second slider is slidably connected to the second slide groove.

3. The portable folding chair according to claim 2, characterized in that: There are two second slide grooves on either side of the first supporting leg, and two second sliding blocks are correspondingly provided on the U-shaped block. The cross section of the second slide groove is trapezoidal.

4. The portable folding chair according to claim 1, characterized in that: The lower end surface of the seat is provided with a first receiving groove, and the first receiving groove is consistent in size with the stabilizing plate.

5. The portable folding chair according to claim 1, characterized in that: The two ends of the chair back are provided with second storage grooves, and the first handrail rod is rotatably arranged in the second storage groove. The first handrail rod can be turned 90 degrees relative to the chair back toward the chair seat.

6. The portable folding chair according to claim 5, characterized in that: A third receiving groove is provided at one end of the first handrail rod close to the seat, a second handrail rod is rotatably arranged in the third receiving groove, a fixing groove is provided on the seat, and the second handrail rod is engaged with the fixing groove.

7. The portable folding chair according to any one of claims 1 to 6, characterized in that: The connecting rod is rotatably connected to a limiting mechanism, and the limiting mechanism includes a first rotating rod, an outer side surface of the first rotating rod is fixedly connected to one end of the third supporting leg, a limiting groove is provided on the first rotating rod, and a limiting block is provided on the connecting rod, and the limiting block and the limiting groove are slidably matched to limit the rotation angle of the first rotating rod.

8. The portable folding chair according to claim 7, characterized in that: There are two limit grooves, which are symmetrically arranged at two ends of the first rotating rod.

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