Folding chair

Abstract

The utility model relates to the technical field of seat, concretely relates to a folding chair. The folding chair includes seat folding main body and two supports, the seat folding main body includes movable frame and two side frames, two side frames are all hinged with movable frame, and movable frame is used for deformation under the action of external force, and then makes two side frames fold or unfold, every side frame is movably connected with a support to make seat folding main body swing back and forth relative to two supports under the action of external force. The folding chair can swing back and forth in the process of using, thereby can adjust the angle of leaning back, and then can satisfy the demand of user, and improve the comfort of use.

Description

Technical Field

[0001] This utility model relates to the field of seating technology, and more specifically, to a folding chair. Background Technology

[0002] Currently, the angles of folding chairs on the market are fixed during use, and they cannot rock back and forth according to the user's needs, which means that the reclining angle cannot be adjusted, thus reducing their comfort. Utility Model Content

[0003] The purpose of this utility model is to provide a folding chair that can swing back and forth during use, thereby adjusting its reclining angle to meet the user's needs and improve comfort.

[0004] The embodiments of this utility model can be implemented as follows: This utility model provides a folding chair, which includes a folding seat body and two supports; The main body of the folding seat includes a movable frame and two side frames. Both side frames are hinged to the movable frame, and the movable frame is designed to deform under external force, thereby causing the two side frames to fold or unfold. Each side frame is movably connected to a support, allowing the folding seat body to swing back and forth relative to the two supports under external force.

[0005] In an optional embodiment, the bracket includes a base tube, a first mounting base, a second mounting base, and a deformation block; the first mounting base is connected to the base tube, the second mounting base is connected to the bottom of the corresponding side frame, and the two ends of the deformation block are respectively connected to the first mounting base and the second mounting base. The side frame is connected to the corresponding bracket, and the position where the side frame is connected to the bottom tube is spaced apart from the position where the second mounting seat is installed on the side frame.

[0006] In an optional embodiment, the folding chair also includes a telescopic tube, one end of which is hinged to the base tube and the other end of which is hinged to the back of the corresponding side frame.

[0007] In an optional embodiment, the deformation block includes a steel plate, a wooden plate, or a composite plate disposed along the extension direction of the bottom tube.

[0008] In an optional embodiment, the movable frame includes an adjusting tube, two connecting tubes, and two limiting members; the two side frames are a first side frame and a second side frame; The regulating tube is U-shaped, and its two sides are hinged to the front and rear of the first side frame, respectively; the two connecting tubes are hinged to the front and rear of the second side frame, respectively, and to both ends of the regulating tube, respectively. Each connecting pipe and adjusting pipe is provided with a limiting device at the hinge joint. The limiting device is used to restrict the rotation of the adjusting pipe and connecting pipe in the direction that causes the first side frame and the second side frame to unfold when the first side frame and the second side frame are unfolded to their maximum positions.

[0009] In an optional embodiment, the limiting member includes a first connecting block and a second connecting block; the first connecting block is connected to the end of the adjusting tube, the second connecting block is connected to the end of the connecting tube, and the first connecting block and the second connecting block are hinged together. When the first side frame and the second side frame are extended to their maximum positions, the first connecting block and the second connecting block abut against each other to restrict the rotation of the adjusting tube and the connecting tube in the direction that causes the first side frame and the second side frame to extend.

[0010] In an alternative embodiment, when the first side frame and the second side frame are deployed, a portion of the adjusting tube extends to the side of the first side frame away from the second side frame.

[0011] In an optional embodiment, the movable frame further includes two support frames, which are spaced apart along the direction from the front to the rear of the seat folding body; Both support frames include hinges and two support tubes. One end of each support tube is hinged to the hinge, and the other end is hinged to the first side frame and the second side frame, respectively.

[0012] In an alternative implementation, each support tube is either crossed and hinged to a connecting tube, or crossed and hinged to one side of an adjusting tube.

[0013] In an optional embodiment, the folding chair also includes two armrests, each of which is rotatably connected to a side frame and is used to unfold to the upper side of the side frame or to be stored to the side of the side frame.

[0014] In an optional embodiment, the handrail frame includes a handrail and two support rods, which are spaced apart, both of which are connected to the handrail and are rotatably connected to the corresponding side frame.

[0015] In an optional embodiment, the folding chair further includes two backrest support tubes, each of which is connected to an armrest frame. The backrest support tubes have positions that are angled to the armrest frame, as well as positions that are stored on the armrest frame or removed from the armrest frame.

[0016] In an alternative implementation, the two backrest support tubes are each hinged to an armrest frame to change position between an angled position relative to the armrest frame and a position stowed on the armrest frame.

[0017] The beneficial effects of the folding chair provided in this embodiment of the utility model include: The folding chair includes a main folding seat body and two supports. The main folding seat body includes a movable frame and two side frames, both of which are hinged to the movable frame. The movable frame is designed to deform under external force, allowing the two side frames to fold or unfold. Each side frame is movably connected to one of the supports, enabling the folding seat body to swing back and forth relative to the two supports under external force. This folding chair can swing back and forth during use, allowing adjustment of its reclining angle to meet user needs and improve comfort. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of the folding chair in its unfolded state as provided in this embodiment; Figure 2 This is a structural diagram illustrating the folding process of the folding chair provided in this embodiment; Figure 3 This is a structural diagram of the folding chair in its folded state provided in this embodiment; Figure 4 This is a structural schematic diagram of the seat folding body provided in this embodiment; Figure 5 This is a schematic diagram showing the connection between the bracket and the side frame provided in this embodiment; Figure 6 This is a schematic diagram of the structure of the movable frame provided in this embodiment.

[0020] Icons: 100-Folding chair; 200-Folding seat body; 110-Bracket; 210-Moveable frame; 220-Side frame; 111-Bottom tube; 112-First mounting seat; 113-Second mounting seat; 114-Deformation block; 115-Telescopic tube; 211-Adjusting tube; 212-Connecting tube; 213-Limiting component; 214-First connecting block; 215-Second connecting block; 216-Support frame; 217-Hinge; 218-Support tube; 120-Armrest frame; 130-Backrest support tube; 121-Armrest bar; 122-Support rod. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0026] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0027] Please refer to Figures 1-4 This embodiment provides a folding chair 100, which includes a seat folding body 200 and two supports 110; The seat folding body 200 includes a movable frame 210 and two side frames 220. Both side frames 220 are hinged to the movable frame 210, and the movable frame 210 is used to deform under the action of external force, thereby causing the two side frames 220 to fold or unfold. Each side frame 220 is movably connected to a corresponding support 110, so that the seat folding body 200 can swing back and forth relative to the two supports 110 under the action of external force.

[0028] Please refer to Figures 1-4 The working principle of this folding chair 100 is as follows: The folding chair 100 includes a seat folding body 200 and two supports 110. The seat folding body 200 includes a movable frame 210 and two side frames 220. Both side frames 220 are hinged to the movable frame 210, and the movable frame 210 is used to deform under the action of external force, thereby causing the two side frames 220 to fold or unfold. That is, the seat folding body 200 can be folded or unfolded, and in the process of folding or unfolding, the two side frames 220 are brought closer or further apart by the deformation of the movable frame 210, thereby folding or unfolding. Each side frame 220 is movably connected to a corresponding support 110, allowing the folding seat body 200 to swing back and forth relative to the two supports 110 under external force. In this way, the user can adjust the reclining angle during use of the folding chair 100 by swinging the folding seat body 200 back and forth relative to the two supports 110, thereby meeting the user's needs and improving comfort.

[0029] It should be noted that, in the above content, during the swinging process of the seat folding body 200 relative to the two supports 110, its swing angle is limited, and the seat folding body 200 can be detachably connected to the two supports 110 in order to improve the flexibility of use, that is, the seat folding body 200 can be used independently after being detached from the two supports 110.

[0030] Further, please refer to Figures 1-5 In this embodiment, when two supports 110 are configured, their function is to support the seat folding body 200 and allow the seat folding body 200 to swing relative to the two supports 110. Moreover, this embodiment uses a configuration where the two supports 110 have the same structure. Therefore, the following description will take the structure of one of the supports 110 as an example. The support frame 110 includes a base tube 111, a first mounting base 112, a second mounting base 113, and a deformation block 114. The folding chair 100 also includes a telescopic tube 115. The first mounting base 112 is connected to the base tube 111, the second mounting base 113 is connected to the bottom of the corresponding side frame 220, the two ends of the deformation block 114 are respectively connected to the first mounting base 112 and the second mounting base 113, one end of the telescopic tube 115 is hinged to the base tube 111, and the other end of the telescopic tube 115 is hinged to the back side of the corresponding side frame 220.

[0031] Therefore, during use, the user can lean back relative to the folding seat body 200, causing the deformation block 114 to deform. At this time, the telescopic tube 115 is compressed, resulting in a backward tilt. When the user leans forward, the deformation block 114 deforms, and the telescopic tube 115 extends. In this way, the folding seat body 200 can swing back and forth. It should be noted that during the extension and retraction of the telescopic tube 115, its purpose is to guide the folding seat body 200 to tilt forward or backward relative to the support 110. It can also limit the lateral tilt or sway of the folding seat body 200 relative to the support 110 through its combined action with the deformation block 114. When configuring the deformation block 114 and the telescopic tube 115, the deformation block 114 needs to deform under a certain external force, and the telescopic tube 115 needs to overcome a certain resistance when deforming. That is, the telescopic tube 115 has a built-in damping element or elastic element, or it can be set as a hydraulic cylinder, so that it can extend and retract under force and return to its original position after the external force is removed.

[0032] When configuring the deformation block 114, the deformation block 114 includes a steel plate, a wooden board, or a composite board disposed along the extension direction of the bottom pipe 111. In this embodiment, the deformation block 114 is configured as a steel plate to ensure that it has sufficient strength and elasticity.

[0033] Unlike the above-described configuration, in other embodiments of this invention, the bracket 110 may include a base tube 111, a first mounting base 112, a second mounting base 113, and a deformation block 114. The first mounting base 112 is connected to the base tube 111, the second mounting base 113 is connected to the bottom of the corresponding side frame 220, and both ends of the deformation block 114 are connected to the first mounting base 112 and the second mounting base 113, respectively. The side frame 220 is connected to the corresponding bracket 110, and the connection point between the side frame 220 and the base tube 111 is positioned relative to the location where the second mounting base 113 is mounted on the side frame 220. Based on this, taking the example of movably connecting the side frame 220 with the bottom tube 111 of the corresponding bracket 110, the seat folding body 200 can move relative to the bottom tube 111 under the action of external force by deforming the deformation block 114; thus, during use, the user can lean back or forward relative to the seat folding body 200, causing the seat folding body 200 to move relative to the bottom tube 111, thereby deforming the deformation block 114, so that when the deformation block 114 is compressed or stretched, the seat folding body 200 can swing back and forth.

[0034] When the movable frame 210 is configured, its function is to deform under the action of external force, so that the two side frames 220 move closer or further apart, and then fold or unfold. It should be noted that since this embodiment uses two supports 110, and the two supports 110 are respectively connected to the two side frames 220, when the two side frames 220 are folded or unfolded, the two supports 110 will fold or unfold synchronously.

[0035] Please refer to Figures 1-6 In this embodiment, the movable frame 210 includes an adjustment tube 211, two connecting tubes 212 and two limiting members 213; the two side frames 220 are a first side frame 220 and a second side frame 220. The regulating tube 211 is U-shaped, and its two sides are hinged to the front and rear of the first side frame 220, respectively; the two connecting tubes 212 are hinged to the front and rear of the second side frame 220, respectively, and are hinged to both ends of the regulating tube 211, respectively. Each connecting pipe 212 and adjusting pipe 211 is provided with a limiting member 213 at the hinge joint. The limiting member 213 is used to restrict the rotation of the adjusting pipe 211 and the connecting pipe 212 in the direction that causes the first side frame 220 and the second side frame 220 to unfold when the first side frame 220 and the second side frame 220 are unfolded to their maximum positions.

[0036] Therefore, with the above-described structural configuration, the adjusting tube 211 can be operated to rotate relative to the connecting tube 212, thereby folding or unfolding. Moreover, with the setting of the limiting member 213, after it is unfolded to the maximum position, that is, when the distance between the two side frames 220 is the maximum, the rotation of the adjusting tube 211 and the connecting tube 212 in the direction that causes the first side frame 220 and the second side frame 220 to unfold can be restricted, thereby keeping it in the unfolded state, but without restricting its movement in the folding direction.

[0037] In order to improve the stability and strength of the movable frame 210 during its unfolding or use, in addition to the above-mentioned adjustment tube 211 and connecting tube 212, the movable frame 210 also includes two support frames 216. The two support frames 216 are spaced apart along the front to rear of the seat folding body 200. Each support frame 216 includes a hinge 217 and two support tubes 218. One end of the two support tubes 218 is hinged to the hinge 217, and the other end is hinged to the first side frame 220 and the second side frame 220 respectively.

[0038] Each support tube 218 is connected to and hinged to a connecting tube 212, or connected to and hinged to one side of the adjusting tube 211. In this way, an X-shaped frame can be formed, which aims to increase stability during use. At the same time, this arrangement guides the relative movement of the two side frames 220 supports 110 during the deformation of the movable frame 210 under external force, so that the two side frames 220 move closer or further apart, thereby improving its stability and strength during deployment or use.

[0039] Based on the structure of the aforementioned movable frame 210, please refer to... Figures 1-6 When the limiting member 213 is configured, the limiting member 213 includes a first connecting block 214 and a second connecting block 215; the first connecting block 214 is connected to the end of the adjusting tube 211, the second connecting block 215 is connected to the end of the connecting tube 212, and the first connecting block 214 and the second connecting block 215 are hinged. When the first side frame 220 and the second side frame 220 are extended to their maximum positions, the first connecting block 214 and the second connecting block 215 abut against each other to restrict the rotation of the adjusting tube 211 and the connecting tube 212 in the direction that causes the first side frame 220 and the second side frame 220 to extend.

[0040] Furthermore, to facilitate user operation, when the first side frame 220 and the second side frame 220 are unfolded, a portion of the adjusting tube 211 extends to the side of the first side frame 220 opposite to the second side frame 220. Thus, by operating the portion of the adjusting tube 211 extending to the side of the first side frame 220 opposite to the second side frame 220, folding can be easily performed. Similarly, this portion can be operated when unfolding.

[0041] Further, please refer to Figures 1-6 Based on the above structure, for ease of use, the folding chair 100 also includes two armrest frames 120. Each armrest frame 120 is rotatably connected to a side frame 220 and can be unfolded onto the upper side of the side frame 220 or folded into the side of the side frame 220. The purpose of this rotatable connection is to allow the armrest frame 120 to be folded into the side of the side frame 220 or unfolded onto the upper side of the side frame 220 for use; that is, the armrest frame 120 can be folded, thereby reducing its structural volume in the folded state. Specifically, the armrest frame 120 includes an armrest bar 121 and two support rods 122. The two support rods 122 are spaced apart, both connected to the armrest bar 121, and both rotatably connected to their respective side frames 220. This multi-point rotatable connection improves the stability of the armrest frame 120 during use.

[0042] It should be noted that, based on this structure, it can also be configured with a structure to keep the handrail 120 in an unfolded or retracted state, such as setting a buckle on the side frame 220, which is used to engage with the handrail 120 rotated onto the side frame 220 to keep it in use.

[0043] In addition, the folding chair 100 may also include two backrest support tubes 130, each of which is connected to an armrest frame 120. The backrest support tubes 130 have positions that are angled to the armrest frame 120, positions that are stored on the armrest frame 120, and positions that are removed from the armrest frame 120. Therefore, when configuring the backrest support tubes 130, the backrest support tubes 130 and the armrest frame 120 can be rotatably connected, thereby realizing the storage or unfolding of the armrest frame 120 by rotation. Alternatively, the backrest support tubes 130 and the armrest frame 120 can be detachably connected, for example, by threaded connection or plug-in fitting.

[0044] In this embodiment, two backrest support tubes 130 are respectively hinged to an armrest frame 120, so that the backrest support tubes 130 can rotate relative to the armrest frame 120 to change position between an angled position with respect to the armrest frame 120 and a position stored on the armrest frame 120.

[0045] Therefore, the backrest support tube 130 can be used to support the user's back to improve the user's comfort. It can also be folded, and when folded, it is folded into the armrest frame 120, thereby reducing the volume of the folding chair 100 in the folded state.

[0046] In addition to the above, it should also be noted that the folding chair 100 provided in this embodiment requires a seat cover to be installed during use. The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A folding chair, characterized in that: The folding chair includes a folding seat body and two supports; The seat folding body includes a movable frame and two side frames. Both side frames are hinged to the movable frame, and the movable frame is used to deform under the action of external force, thereby causing the two side frames to fold or unfold. Each of the side frames is movably connected to one of the supports, so that the seat folding body can swing back and forth relative to the two supports under the action of an external force.

2. The folding chair according to claim 1, characterized in that: The bracket includes a base tube, a first mounting base, a second mounting base, and a deformation block; the first mounting base is connected to the base tube, the second mounting base is connected to the bottom of the corresponding side frame, and the two ends of the deformation block are respectively connected to the first mounting base and the second mounting base; The side frame is connected to the corresponding bracket, and the position where the side frame is connected to the bottom tube is spaced apart from the position where the second mounting seat is installed on the side frame.

3. The folding chair according to claim 2, characterized in that: The folding chair also includes a telescopic tube, one end of which is hinged to the bottom tube, and the other end of which is hinged to the back of the corresponding side frame.

4. The folding chair according to claim 2, characterized in that: The deformation block includes a steel plate, a wooden board, or a composite board disposed along the extension direction of the bottom tube.

5. The folding chair according to any one of claims 1-4, characterized in that: The movable frame includes an adjustment tube, two connecting tubes, and two limiting components; the two side frames are a first side frame and a second side frame. The adjusting tube is U-shaped, and its two sides are respectively hinged to the front and rear of the first side frame; the two connecting tubes are respectively hinged to the front and rear of the second side frame, and respectively hinged to both ends of the adjusting tube. Each of the hinge joints between the connecting tube and the adjusting tube is provided with a limiting member, which is used to restrict the rotation of the adjusting tube and the connecting tube in the direction that causes the first side frame and the second side frame to unfold when the first side frame and the second side frame are unfolded to their maximum positions.

6. The folding chair according to claim 5, characterized in that: The limiting member includes a first connecting block and a second connecting block; the first connecting block is connected to the end of the adjusting tube, the second connecting block is connected to the end of the connecting tube, and the first connecting block and the second connecting block are hinged together; When the first side frame and the second side frame are extended to their maximum positions, the first connecting block and the second connecting block abut against each other to restrict the rotation of the adjusting tube and the connecting tube in the direction that causes the first side frame and the second side frame to extend.

7. The folding chair according to claim 5, characterized in that: When the first side frame and the second side frame are deployed, a portion of the adjustment tube extends to the side of the first side frame away from the second side frame.

8. The folding chair according to claim 5, characterized in that: The movable frame also includes two support frames, which are spaced apart along the direction from the front to the rear of the seat folding body; Both of the support frames include a hinge and two support tubes. One end of each support tube is hinged to the hinge, and the other end is hinged to the first side frame and the second side frame, respectively.

9. The folding chair according to claim 8, characterized in that: Each of the support tubes is either crossed and hinged to one of the connecting tubes, or crossed and hinged to one side of the adjusting tube.

10. The folding chair according to claim 5, characterized in that: The folding chair also includes two armrests, each of which is rotatably connected to one of the side frames and is used to unfold to the upper side of the side frame or to be stored to the side of the side frame.

11. The folding chair according to claim 10, characterized in that: The handrail frame includes a handrail and two support rods. The two support rods are spaced apart, and both support rods are connected to the handrail and rotatably connected to the corresponding side frame.

12. The folding chair according to claim 10, characterized in that: The folding chair also includes two backrest support tubes, each of which is connected to one of the armrest frames. The backrest support tubes are positioned at an angle to the armrest frame and are also positioned to be stored on the armrest frame or removed from the armrest frame.

13. The folding chair according to claim 12, characterized in that: The two backrest support tubes are respectively hinged to one of the armrest frames to change position between an angled position with respect to the armrest frame and a position retracted onto the armrest frame.

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