Folding chair

Abstract

The utility model relates to a folding chair, which belongs to the technical field of tourism products, and comprises a seat plate, a back plate, a rear support leg hinged to the front end of the bottom surface of the seat plate, a front support leg hinged to the rear end of the bottom surface of the seat plate and crossed with the rear support leg, and a limiting frame arranged on the back surface of the back plate and respectively connected with the front support leg and the rear support leg, the connecting part of the limiting frame is hinged to the seat plate so as to limit the limiting frame through the seat plate, the intersection of the rear supporting leg and the front supporting leg is hinged, the limiting part of the limiting frame is hinged to the front supporting leg, and the limiting part of the limiting frame is in sliding connection with the rear supporting leg so as to limit the opening degree of the intersection of the front supporting leg and the rear supporting leg. The folding chair has the advantages that the folding chair can be quickly and conveniently folded and stably unfolded, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of tourist products, and in particular to a folding chair. Background Art

[0002] At present, with the continuous improvement of people's quality of life, in their spare time after work, they often need to go camping, and folding chairs are essential equipment for camping.

[0003] The existing folding chair includes a foldable chair frame and a seat plate and a back plate arranged on the chair frame. The chair frame provides support when in use, and the folding of the folding chair is achieved by folding the chair frame when storing.

[0004] The present application provides another technical solution for folding a folding chair, aiming to provide a variety of solution options for those skilled in the art. Utility Model Content

[0005] In order to realize the folding of the folding chair, the present application provides a folding chair.

[0006] The folding chair provided in this application adopts the following technical solution:

[0007] A folding chair comprises a seat plate, a back plate, a rear support leg hinged on the front end of the bottom of the seat plate, a front support leg hinged on the rear end of the bottom surface of the seat plate and arranged crosswise with the rear support leg, and a limiting frame arranged on the back side of the back plate and connected to the front support leg and the rear support leg respectively, wherein the rear support leg can be folded, the connecting portion of the limiting frame is hinged to the seat plate so that the intersection of the rear support leg and the front support leg is hinged through the seat plate limiting limiting frame, the limiting portion of the limiting frame is hinged to the front support leg, and the limiting portion of the limiting frame is slidably connected to the rear support leg to limit the opening degree of the intersection of the front support leg and the rear support leg.

[0008] By adopting the above technical solution, a specific connection method is set between the seat plate, the back plate, the rear support leg, the front support leg and the limit frame, so that the folding chair can be folded quickly and conveniently and unfolded stably, thereby improving the user experience.

[0009] Preferably, the rear support leg includes a first rear support rod hinged on the front end of the bottom of the seat plate, a second rear support rod offset from the first rear support rod and hinged to the bottom end of the first rear support rod, and a first limit strip hinged on the bottom surface of the seat plate and slidably connected to the hinge of the first rear support rod and the second rear support rod, wherein the first limit strip is used to limit the first rear support rod and the second rear support rod so that the first rear support rod and the second rear support rod cannot move in the retracting direction.

[0010] By adopting the above technical solution, the connection between the first rear support rod and the second rear support rod enables the rear support legs to be folded, so as to facilitate the folding of the folding chair. Under the limiting action of the first limiting strip, when the folding chair is unfolded, the first rear support rod and the second rear support rod cannot move in the reverse folding direction.

[0011] Preferably, a first elongated hole is formed on the first limiting strip, and a hinge between the first rear support rod and the second rear support rod is slidably connected to the first elongated hole.

[0012] By adopting the above technical solution, the hinge of the first rear support rod and the second rear support rod is slidably connected to the first long hole, so that when the folding chair is unfolded, the first rear support rod and the second rear support rod cannot move in the folding direction.

[0013] Preferably, the limit frame includes a connecting rod fixed on the back side of the back plate, a second limit strip hinged on the bottom end of the connecting rod, and a connecting strip hinged between the connecting rod and the seat plate, the second limit strip is hinged to the front support leg at one end away from the connecting rod, the second rear support rod is slidably connected to the second limit strip on one side close to the front support leg, and the front support leg and the second rear support rod are cross-arranged and hinged to each other.

[0014] By adopting the above technical solution, the second limiting strip limits the opening of the intersection of the front supporting leg and the second rear supporting rod, thereby ensuring the stability and load-bearing capacity of the folding chair when it is unfolded.

[0015] Preferably, a second elongated hole is formed on the second limiting strip, and a sliding rod slidably connected to the second elongated hole is fixedly connected to one side of the second rear support rod close to the front support leg.

[0016] By adopting the above technical solution, the sliding movement of the sliding rod and the second long strip hole realizes the sliding connection between the second rear support rod and the second limiting strip.

[0017] Preferably, a limiting head is provided at one end of the sliding rod away from the second rear support rod, and the second limiting strip is limited between the limiting head and the second rear support rod.

[0018] By adopting the above technical solution, the setting of the limit head can effectively prevent the risk of the sliding rod falling off from the second long hole.

[0019] Preferably, the top surface of the connecting strip supports the bottom surface of the seat plate.

[0020] By adopting the above technical solution, the top surface of the connecting strip supports the bottom surface of the seat board, thereby enhancing the load-bearing capacity of the seat board.

[0021] Preferably, it also includes a support rod hinged on the side of the seat plate and an armrest hinged on the top end of the support rod, and the end of the armrest is hinged to the limiting frame.

[0022] By adopting the above technical solution, the armrests can provide support for the user's arms and improve the user experience.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. A specific connection method is set between the seat plate, back plate, rear support leg, front support leg and limit frame, so that the folding chair can be folded quickly and conveniently and unfolded stably, improving the user experience;

[0025] 2. The connection between the first rear support rod and the second rear support rod enables the rear support legs to be folded, so as to facilitate the folding of the folding chair. Under the limiting action of the first limiting strip, when the folding chair is unfolded, the first rear support rod and the second rear support rod cannot move in the reverse folding direction;

[0026] 3. The setting of the armrest can provide support for the user's arms and improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0028] Figure 2 yes Figure 1 A partial enlarged view of part A.

[0029] Figure 3 yes Figure 1 A partial enlarged view of part B.

[0030] Figure 4 It is a structural schematic diagram of the folding chair of Example 1 of the present application in a semi-folded state.

[0031] Figure 5 It is a schematic diagram of the overall structure of the second embodiment of the present application.

[0032] Explanation of the accompanying drawings: 1. seat plate; 11. first mounting plate; 12. second mounting plate; 13. fixing block; 14. support rod; 15. armrest; 2. back plate; 3. front support leg; 31. first connecting plate; 4. first rear support rod; 41. second rear support rod; 411. sliding rod; 412. limiting head; 413. second connecting plate; 42. first limiting strip; 421. first long strip hole; 422. connecting piece; 5. connecting rod; 51. second limiting strip; 511. second long strip hole; 52. connecting strip. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] Example 1

[0035] The present application embodiment discloses a folding chair. Figure 1 and Figure 2 The folding chair comprises a seat plate 1, a back plate 2, a rear support leg arranged on the front end of the bottom of the seat plate 1 and foldable, a front support leg 3 arranged at the rear end of the bottom surface of the seat plate 1 and cross-arranged with the rear support leg, and a limiting frame arranged on the back side of the back plate 2 and connected with the front support leg 3 and the rear support leg respectively; the connecting part of the limiting frame is hinged to the seat plate 1 to limit the limiting frame through the seat plate 1; the intersection of the rear support leg and the front support leg 3 is hinged, the limiting part of the limiting frame is hinged to the front support leg 3, and the limiting part of the limiting frame is slidably connected to the rear support leg to limit the opening of the intersection of the front support leg 3 and the rear support leg, thereby ensuring the stability and load-bearing capacity of the folding chair when unfolded.

[0036] Reference Figure 1 and Figure 2 A first mounting plate 11 is fixedly connected to the bottom surface of the seat plate 1, and the cross-section of the first mounting plate 11 is L-shaped. The horizontal side top surface of the first mounting plate 11 is fixedly connected to the bottom surface of the seat plate 1; the rear support leg includes a first rear support rod 4 hinged on the front end of the vertical side of the first mounting plate 11, a second rear support rod 41 that is staggered with the first rear support rod 4 and hinged to the bottom end of the first rear support rod 4, and a first limiting strip 42 that is hinged on the vertical side of the first mounting plate 11 and is slidably connected to the hinge of the first rear support rod 4 and the second rear support rod 41; the first limiting strip 42 is used to limit the first rear support rod 4 and the second rear support rod 41, so that the first rear support rod 4 and the second rear support rod 41 cannot move in the reverse folding direction.

[0037] Reference Figure 1 and Figure 2 A first elongated hole 421 is provided on the first limiting strip 42, and the length direction of the first elongated hole 421 is consistent with the length direction of the first limiting strip 42; the first rear support rod 4 is located between the first limiting strip 42 and the second rear support rod 41, and the bottom end of the first rear support rod 4 and the top end of the second rear support rod 41 are hinged through the same connecting piece 422; in this embodiment, the connecting piece 422 is a first rivet, the first rivet passes through the first elongated hole 421 and is slidably connected to the first elongated hole 421, and the first limiting strip 42 is limited between the head of the first rivet and the first rear support rod 4.

[0038] The bottom surface of the seat plate 1 is fixedly connected with a second mounting plate 12 which is parallel to the first mounting plate 11. The second mounting plate 12 is located outside the first mounting plate 11. The cross section of the second mounting plate 12 is also L-shaped, and the bending part of the first mounting plate 11 and the bending part of the second mounting plate 12 are arranged back to back to each other.

[0039] Reference Figure 1 and Figure 3The limiting frame includes a connecting rod 5 fixed on the back of the back plate 2, a second limiting strip 51 hinged on the bottom end of the connecting rod 5, and a connecting strip 52 hinged between the connecting rod 5 and the second mounting plate 12; the connecting strip 52 is the connecting part of the limiting frame, and the second limiting strip 51 is the limiting part of the limiting frame. The second limiting strip 51 is located between the connecting rod 5 and the front support leg 3, and the front support leg 3 and the second rear support rod 41 are cross-arranged and hinged to each other; the end of the second limiting strip 51 away from the connecting rod 5 is hinged to the side of the front support leg 3 close to the second rear support rod 41, and the side of the second rear support rod 41 close to the front support leg 3 is slidably connected to the second limiting strip 51.

[0040] Reference Figure 1 and Figure 3 A second elongated hole 511 is provided on the second limiting strip 51, and the length direction of the second elongated hole 511 is consistent with the length direction of the second limiting strip 51, and a sliding rod 411 is fixedly connected to the side of the second rear support rod 41 close to the front support leg 3, the sliding rod 411 passes through the second elongated hole 511 and is slidably connected to the second elongated hole 511, and a limiting head 412 is integrally formed with the end of the sliding rod 411 away from the second rear support rod 41, and the second limiting strip 51 is limited between the limiting head 412 and the second rear support rod 41; thereby effectively preventing the risk of the sliding rod 411 falling off from the second elongated hole 511.

[0041] Reference Figure 1 and Figure 3 The top end of the front support leg 3 is hinged to the rear end of the vertical side of the second mounting plate 12 and is located on the side of the second mounting plate 12 close to the first mounting plate 11; one end of the connecting strip 52 is hinged to the vertical side of the second mounting plate 12 and is located on the side of the second mounting plate 12 away from the first mounting plate 11, and one end of the connecting strip 52 away from the second mounting plate 12 is hinged to the inner side of the connecting rod 5; and when the folding chair is unfolded, the top surface of the connecting strip 52 abuts against the bottom surface of the horizontal side of the second mounting plate 12, so that the top surface of the connecting strip 52 supports the bottom surface of the seat plate 1.

[0042] In order to achieve smooth folding of the folding chair, the first limit strip 42, the first rear support rod 4, the second rear support rod 41, the second limit strip 51, the front support leg 3, the connecting strip 52 and the connecting rod 5 are staggered in sequence from the inside to the outside so that they can be coplanar during the folding process, thereby achieving smooth folding.

[0043] In this embodiment, the rear support legs, the front support legs 3, the limiting frame, the first mounting plate 11 and the second mounting plate 12 are symmetrically arranged in two groups; in order to enhance the connection strength between the two front support legs 3, a first connecting plate 31 is fixedly connected between the two front support legs 3; in order to enhance the connection strength between the two second rear support rods 41, a second connecting plate 413 is fixedly connected between the two second rear support rods 41.

[0044] The implementation principle of a folding chair in the first embodiment of the present application is as follows: Figure 1 and Figure 4 When the folding chair needs to be folded, one hand pulls up the side of the seat plate 1 close to the back plate 2, and the other hand lifts the back plate 2 to make the second rear support rod 41 leave the ground. In the process of pulling up the side of the seat plate 1 close to the back plate 2, the first mounting plate 11 drives the top end of the first rear support rod 4 to move, so that the first rivet moves upward along the length direction of the first long hole 421, and the first rear support rod 4 and the second rear support rod 41 rotate relative to each other in the folding direction; at the same time, the second mounting plate 12 drives the top end of the front support leg, so that the opening of the intersection of the front support leg 3 and the second rear support rod 41 gradually decreases; and the connecting bar 52 rotates in the direction away from the seat plate 1 driven by the second mounting plate 12. As the opening of the intersection of the front support leg 3 and the second rear support rod 41 gradually decreases, the slide bar 411 moves along the length direction of the second elongated hole 511 toward the front support leg 3; until the front support leg 3, the first rear support rod 4 and the second rear support rod 41 are coplanar, at which time the first rivet moves to one end of the first elongated hole 421 close to the first mounting plate 11, and the slide bar 411 moves to one end of the second elongated hole 511 close to the front support leg 3, and the seat plate 1 and the back plate 2 are parallel to each other; then the seat plate 1 is pushed toward the back plate 2 so that the back plate 2 is located directly above the seat plate 1 and coplanar, completing the folding of the folding chair.

[0045] Example 2

[0046] Reference Figure 5 , which is different from Example 1 in that: the folding chair also includes a support rod 14 arranged on the side of the seat plate 1 and an armrest 15 hinged on the top of the support rod 14, a fixing block 13 is fixed to the side of the seat plate 1, the bottom end of the support rod 14 is hinged to the side of the fixing block 13 away from the seat plate 1, and the end of the armrest 15 is hinged to the outer side of the connecting rod 5; the fixing block 13, the support rod 14 and the armrest 15 are symmetrically arranged in two groups; the armrest 15 can provide support for the user's arms and improve the user experience.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A folding chair, characterized in that: The invention comprises a seat plate (1), a back plate (2), a rear support leg hinged on the front end of the bottom of the seat plate (1), a front support leg (3) hinged on the rear end of the bottom of the seat plate (1) and arranged crosswise with the rear support leg, and a limit frame arranged on the back of the back plate (2) and connected to the front support leg (3) and the rear support leg respectively, wherein the rear support leg can be folded, the connecting part of the limit frame is hinged to the seat plate (1) so as to limit the limit frame through the seat plate (1), the intersection of the rear support leg and the front support leg (3) is hinged, the limit part of the limit frame is hinged to the front support leg (3), and the limit part of the limit frame is slidably connected to the rear support leg so as to limit the opening degree of the intersection of the front support leg (3) and the rear support leg.

2. A folding chair according to claim 1, characterized in that: The rear support leg comprises a first rear support rod (4) hinged on the front end of the bottom of the seat plate (1), a second rear support rod (41) staggered with the first rear support rod (4) and hinged to the bottom end of the first rear support rod (4), and a first limit strip (42) hinged on the bottom surface of the seat plate (1) and slidably connected to the hinge of the first rear support rod (4) and the second rear support rod (41), wherein the first limit strip (42) is used to limit the first rear support rod (4) and the second rear support rod (41) so that the first rear support rod (4) and the second rear support rod (41) cannot move in the retracting direction.

3. A folding chair according to claim 2, characterized in that: The first limiting strip (42) is provided with a first elongated hole (421), and the hinge between the first rear support rod (4) and the second rear support rod (41) is slidably connected to the first elongated hole (421).

4. A folding chair according to claim 2, characterized in that: The limiting frame comprises a connecting rod (5) fixed on the back side of the back plate (2), a second limiting strip (51) hinged on the bottom end of the connecting rod (5), and a connecting strip (52) hinged between the connecting rod (5) and the seat plate (1); the end of the second limiting strip (51) away from the connecting rod (5) is hinged to the front support leg (3); the side of the second rear support rod (41) close to the front support leg (3) is slidably connected to the second limiting strip (51); the front support leg (3) and the second rear support rod (41) are cross-arranged and hinged to each other.

5. A folding chair according to claim 4, characterized in that: The second limiting strip (51) is provided with a second elongated hole (511), and a sliding rod (411) slidably connected to the second elongated hole (511) is fixedly connected to one side of the second rear support rod (41) close to the front support leg (3).

6. A folding chair according to claim 5, characterized in that: A limiting head (412) is provided at one end of the sliding rod (411) away from the second rear support rod (41), and the second limiting strip (51) is limited between the limiting head (412) and the second rear support rod (41).

7. A folding chair according to claim 4, characterized in that: The top surface of the connecting strip (52) supports the bottom surface of the seat plate (1).

8. The folding chair according to claim 1, characterized in that: It also comprises a support rod (14) hinged on the side of the seat plate (1) and an armrest (15) hinged on the top of the support rod (14), and the end of the armrest (15) is hinged to the limiting frame.

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