Reinforcing structure of folding chair

Abstract

The utility model relates to the technical field of folding chairs, and discloses a reinforcing structure of a folding chair, which comprises a support frame and hinged rotating components arranged on two sides of the surface of the support frame, and further comprises a support frame arranged on opposite surfaces of the hinged rotating components on two sides, and seat plates are rotatably connected to two sides of the inner wall of the support frame; according to the folding chair disclosed by the utility model, the connecting piece is matched with the reinforcing mechanism, so that when the folding chair is used, the folding chair which is completely unfolded can be positioned, the folding chair is more stable after being unfolded and is not easy to topple or shake due to external force, the use safety is improved, the folding chair can be prevented from being folded back easily, the folding chair does not need to be unfolded again, and the use is convenient. Under the cooperation of the lantern ring, the supporting mechanism, the sliding groove and the positioning groove, the seat plate can be supported in an auxiliary mode, the auxiliary supporting seat plate can effectively disperse the pressure generated when a user sits on the folding chair, the bearing force of the supporting seat plate is increased, the folding chair can be better suitable for the heavy user, and the overall service life of the folding chair is prolonged.

Description

Technical Field

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

[0002] Folding chairs are lightweight, stackable chairs that are easy to move and space-saving. They are widely used in various workplaces, including training institutions, schools, public spaces, hospitals, restaurants, hotels, companies, and homes. Folding chairs are a convenient household staple, featuring a convenient design that folds easily and can be stored in any space, whether large or small. They are also effortless to move and take up minimal space.

[0003] The folding chairs currently in use do not have the function of enhancing stability when fully unfolded. The design of some folding chairs is too simple and lacks the necessary locking mechanism or positioning structure, which makes the chair easy to fold due to external force or user's carelessness after unfolding. This situation can easily cause the user to fall, and at the same time, the chair needs to be lifted up and unfolded again. In addition, the folding chairs currently in use do not have the function of auxiliary support cushions, and simply rely on their own automatic shaft for support. When used by heavier users, they may not provide sufficient support force, which can easily damage the folding chair and may also cause physical injury to the user. Utility Model Content

[0004] The purpose of the present invention is to provide a reinforcement structure for a folding chair to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a reinforced structure for a folding chair, comprising a support frame and hinged rotating assemblies disposed on both sides of a surface of the support frame, and further comprising:

[0006] A support frame is provided on opposite sides of the hinged rotating components on both sides, the two sides of the inner wall of the support frame are rotatably connected to the seat plate, the two sides of the seat plate surface are rotatably connected to the two sides of the inner wall of the support frame respectively, the inner wall above the support frame is bolted with a cushion, and the inner wall below the support frame and the inner wall below the support frame are both bolted with a connecting rod;

[0007] A connecting piece is bolted to one side of the connecting rod surface on both sides, a reinforcing mechanism is provided under the seat plate, both sides of the connecting rod surface on one side are rotatably connected with a ring, and a supporting mechanism is provided above the rings on both sides, and sliding grooves are provided on both sides of the bottom of the seat plate, and a positioning groove is provided on one side of the top of the inner wall of the sliding groove on both sides.

[0008] Preferably, the reinforcing mechanism includes a mounting plate hinged to the inner wall of a connecting member on one side and a sleeve sliding on the surface of the mounting plate, the inner wall on one side of the sleeve surface and the inner wall of the connecting member on the other side are hinged to each other, an L-shaped frame is bolted to one side of the top of the sleeve, a tension spring is fixedly connected to the top of the L-shaped frame, a positioning rod is fixedly connected to the other end of the surface of the tension spring, and the surface of the positioning rod is slidably connected to the inner wall of the L-shaped frame.

[0009] Preferably, the supporting mechanism includes a telescopic rod bolted to one side of the collar surface and a sliding rod bolted to one end of the surface of the storage shell in the telescopic rod, the surface of the sliding rod is slidably connected to the inner wall of the slide groove, and a fixed seat is bolted to one side of the surface of the extension shaft in the telescopic rod, and a compression spring is fixedly connected to the top of the fixing seat, and the other end of the surface of the compression spring is fixedly connected to the other end of the surface of the storage shell in the telescopic rod.

[0010] Preferably, the cross section of the mounting plate is square, and the cross section of the housing is square.

[0011] Preferably, the length of the sliding groove is greater than the maximum moving distance of the sliding rod.

[0012] Preferably, the opposite surfaces of the telescopic rods on both sides are bolted with cross bars.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] The utility model cooperates with the connecting piece and the reinforcing mechanism, so that the fully unfolded folding chair can be positioned when the folding chair is in use, thereby strengthening the stability of the folding chair after unfolding, preventing it from tipping over or shaking due to external forces, improving the safety of use, and preventing it from easily folding back, without the need to unfold it again. With the cooperation of the collar, the supporting mechanism, the sliding groove and the positioning groove, the seat plate can be auxiliary supported, and the auxiliary support seat plate can effectively disperse the pressure of the user sitting on the folding chair, increase the bearing capacity of the support seat plate, and is better suitable for users with heavier weight, thereby extending the overall service life of the folding chair. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present utility model;

[0016] Figure 2 It is a structural diagram of the strengthening mechanism in the present utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the casing in the present invention;

[0018] Figure 4 This is a schematic structural diagram of the support mechanism in the present utility model;

[0019] Figure 5This is a schematic diagram of the cross-sectional structure of the seat plate of the present invention;

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the telescopic rod in the utility model.

[0021] In the figure: 1. Support frame; 2. Support frame; 3. Articulated rotation assembly; 4. Seat plate; 5. Cushion; 6. Connecting rod; 7. Connecting piece; 8. Reinforcement mechanism; 81. Mounting plate; 82. Housing; 83. L-shaped frame; 84. Tension spring; 85. Positioning rod; 9. Ring; 10. Support mechanism; 101. Telescopic rod; 102. Sliding rod; 103. Fixed seat; 104. Compression spring; 11. Slide groove; 12. Positioning groove; 13. Cross bar. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-6As shown, a reinforcement structure of a folding chair comprises a support frame 1, and both sides of the surface of the support frame 1 are provided with an articulated rotating assembly 2, which is composed of a rotating shaft, a connecting shaft, and a connecting plate. The internal opposite surfaces of the articulated rotating assemblies 2 on both sides are provided with a support frame 3, and the support frame 3 can be rotated and folded under the action of the articulated rotating assembly 2. The two sides of the inner wall of the support frame 1 are rotatably connected with the seat plate 4, and the two sides of the surface of the seat plate 4 are respectively rotatably connected with the two sides of the inner wall of the support frame 3. When the seat plate 4 is rotated to a suitable position, the user can sit on the top of the seat plate 4, and the inner wall above the support frame 1 is bolted with a cushion 5. The inner wall below the support frame 1 and the inner wall below the support frame 3 are bolted with a connecting rod 6, and one side of the surface of the connecting rod 6 on both sides is bolted with a connecting piece 7. A reinforcement mechanism 8 is provided below the seat plate 4, and the reinforcement mechanism 8 is connected to the inner wall below the support frame 3. The connecting parts 7 on both sides are used in combination, and the fully expanded support frame 1 and support frame 3 can be positioned under the action of the reinforcing mechanism 8 to prevent them from moving easily. Both sides of the surface of one side connecting rod 6 are rotatably connected with rings 9, and support mechanisms 10 are provided above the rings 9 on both sides. Slide grooves 11 are provided on both sides of the bottom of the seat plate 4. The support mechanism 10 cooperates with the slide grooves 11, and the parts inside the support mechanism 10 can be guided under the action of the slide grooves 11. A positioning groove 12 is provided on one side of the top of the inner wall of the slide grooves 11 on both sides. The positioning groove 12 cooperates with the support mechanism 10. When the parts inside the support mechanism 10 are moved to the appropriate position, the parts inside the support mechanism 10 can be positioned under the action of the positioning grooves 12, and the bearing capacity of the seat plate 4 can be increased under the action of the support mechanisms 10 on both sides.

[0024] The reinforcing mechanism 8 includes a mounting plate 81, the inner wall of the mounting plate 81 is hinged to the inner wall of the connecting piece 7 on one side, and the surface of the mounting plate 81 is slidably connected to a shell 82, and the inner wall of one side of the shell 82 surface is hinged to the inner wall of the connecting piece 7 on the other side. When the support frame 1 is unfolded, the mounting plate 81 can be rotated and extended, and when the mounting plate 81 rotates, the shell 82 can be rotated. An L-shaped frame 83 is bolted to one side of the top of the shell 82, and a tension spring 84 is fixedly connected to the top of the L-shaped frame 83. The other end of the surface of the tension spring 84 is fixedly connected to a positioning rod 85, and the surface of the positioning rod 85 is slidably connected to the inner wall of the L-shaped frame 83. When the tension spring 84 is extended to the maximum distance, the positioning rod 85 can enter the inner wall of the top of the mounting plate 81 under the action of the rebound force of the tension spring 84, thereby preventing the mounting plate 81 from moving easily. The cross section of the mounting plate 81 is square, and the cross section of the shell 82 is square.

[0025] The support mechanism 10 includes a telescopic rod 101, one end of the surface of the extension shaft in the telescopic rod 101 is bolted to one side of the surface of the collar 9, one end of the surface of the storage shell in the telescopic rod 101 is bolted to a slide rod 102, the surface of the slide rod 102 is slidably connected to the inner wall of the slide groove 11, when the seat plate 4 is unfolded, the slide rod 102 can slide along the inner wall of the slide groove 11, when the slide rod 102 slides, the slide rod 102 can rotate, and when the slide rod 102 rotates, the collar 9 can rotate, and one side of the surface of the extension shaft in the telescopic rod 101 is bolted to a fixed seat 103, and the top of the fixed seat 103 is fixedly connected It is connected to a compression spring 104, and the other end of the surface of the compression spring 104 is fixedly connected to the other end of the surface of the storage shell in the telescopic rod 101. When the seat plate 4 rotates to the horizontal plane, the telescopic rod 101 can be extended under the action of the compression spring 104, and under this action, the sliding rod 102 can enter the interior of the positioning groove 12. The length of the sliding groove 11 is greater than the maximum moving distance of the sliding rod 102. The opposite surfaces of the telescopic rods 101 on both sides are bolted with a cross bar 13. When it is necessary to contact the limit of the sliding rods 102 on both sides, the telescopic rods 101 on both sides can be driven to retract at the same time under the action of the cross bar 13.

[0026] It is worth noting that the technical features such as the articulated rotating component 2 proposed in this technical solution should be regarded as prior art. The specific structure, working principle, and possible control method and spatial layout method of these technical features can be selected according to conventional methods in the field, and this technical solution will not be further elaborated.

[0027] Working principle: When the folding chair is needed, the support frame 1 is unfolded. When the support frame 1 is unfolded, the connecting member 7 on one side can be driven to move. When the connecting member 7 on one side moves, the mounting plate 81 can be rotated. Then, the mounting plate 81 can extend along the inner wall of the casing 82 during the rotation of the mounting plate 81. At this time, the tension spring 84 is in a stretched state. When the support frame 1 is fully unfolded, the mounting plate 81 can be extended to the maximum range. Then, it can return to its original position under the action of the tension spring 84. Next, the tension spring 84 returns to its original position and drives the positioning rod 85 to descend. When the positioning rod 85 descends, it can enter the inner wall of the top of the mounting plate 81, thereby preventing the casing 82 from moving easily. When the casing 82 is When the shell 82 is in the limited state, it can prevent the support frame 1 from folding back. When the seat plate 4 is unfolded, the sliding rods 102 on both sides can slide along the inner wall of the slide groove 11. When the sliding rod 102 slides, it can drive the telescopic rod 101 to rotate, and then the rotation of the telescopic rod 101 can cause the ring 9 to rotate. At this time, the compression spring 104 is in a compressed state. Next, when the sliding rod 102 moves to the appropriate position, the telescopic rod 101 can be extended under the action of the compression spring 104. When the telescopic rod 101 is extended, the sliding rod 102 can rise, and then the sliding rod 102 rises and can enter the interior of the positioning groove 12. Under this action, the telescopic rod 101 can be prevented from rotating easily, and the seat plate 4 can be provided with auxiliary support.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reinforced structure for a folding chair, comprising a support frame (1) and hinged rotating components (2) arranged on both sides of the surface of the support frame (1), characterized in that: Also includes: A support frame (3) is provided on opposite sides of the hinged rotating components (2), the two sides of the inner wall of the support frame (1) are rotatably connected to a seat plate (4), the two sides of the surface of the seat plate (4) are respectively rotatably connected to the two sides of the inner wall of the support frame (3), the upper inner wall of the support frame (1) is bolted to a cushion (5), and the lower inner wall of the support frame (1) and the lower inner wall of the support frame (3) are both bolted to a connecting rod (6); A connecting piece (7) is bolted to one side of the surface of the connecting rod (6) on both sides, a reinforcing mechanism (8) is provided below the seat plate (4), both sides of the surface of one side of the connecting rod (6) are rotatably connected with a collar (9), and a supporting mechanism (10) is provided above the collar (9) on both sides. Both sides of the bottom of the seat plate (4) are provided with a sliding groove (11), and one side of the top of the inner wall of the sliding groove (11) on both sides is provided with a positioning groove (12).

2. The reinforcement structure of a folding chair according to claim 1, characterized in that: The reinforcing mechanism (8) comprises a mounting plate (81) hinged to the inner wall of a connecting member (7) on one side and a sleeve (82) sliding on the surface of the mounting plate (81); the inner wall on one side of the surface of the sleeve (82) is hinged to the inner wall of the connecting member (7) on the other side; an L-shaped frame (83) is bolted to one side of the top of the sleeve (82); a tension spring (84) is fixedly connected to the top of the L-shaped frame (83); a positioning rod (85) is fixedly connected to the other end of the surface of the tension spring (84); and the surface of the positioning rod (85) is slidably connected to the inner wall of the L-shaped frame (83).

3. The reinforcement structure of a folding chair according to claim 1, characterized in that: The support mechanism (10) comprises a telescopic rod (101) bolted to one side of the surface of the collar (9) and a sliding rod (102) bolted to one end of the surface of the storage shell in the telescopic rod (101); the surface of the sliding rod (102) is slidably connected to the inner wall of the slide groove (11); a fixing seat (103) is bolted to one side of the surface of the extension shaft in the telescopic rod (101); a compression spring (104) is fixedly connected to the top of the fixing seat (103); and the other end of the surface of the compression spring (104) is fixedly connected to the other end of the surface of the storage shell in the telescopic rod (101).

4. The reinforcement structure of a folding chair according to claim 2, characterized in that: The cross section of the mounting plate (81) is square, and the cross section of the casing (82) is square.

5. The reinforcement structure of a folding chair according to claim 3, characterized in that: The length of the sliding groove (11) is greater than the maximum moving distance of the sliding rod (102).

6. The reinforcement structure of a folding chair according to claim 3, characterized in that: The opposite surfaces of the telescopic rods (101) on both sides are bolted with cross bars (13).

Images