Four-connecting-rod folding director chair
By using a four-bar linkage design, the stability and aesthetic issues of existing folding director chairs have been resolved, achieving both stable folding and an aesthetically pleasing effect.
Patent Information
- Application Number
- CN202422965370.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-03
AI Technical Summary
The existing folding director's chair has poor stability in the middle folding structure, and it is not aesthetically pleasing when folded, with the crossbars protruding.
The design employs a four-bar linkage, including a first upper linkage, a second upper linkage, a first lower linkage, and a second lower linkage. These are connected by a pivot and a folding lock to form a stable rectangular frame. Connecting rods and limiting folds are used to increase connection points, ensuring stability and aesthetics when folded and unfolded.
The stability of the director's chair has been improved, allowing it to be completely folded without any protruding parts when folded, thus enhancing its aesthetics.
Smart Images
Figure CN223601106U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a director chair, in particular to a four-connecting-rod folding director chair, belongs to director chair technical field. BACKGROUND
[0002] The folding director chair is a kind of seat with light, stackable function, it is convenient to move, and it is also space-saving seat, can be stacked, and it is flexible to assemble and convenient to use.
[0003] In prior art, the folding director chair is folded, and the folding structure in the middle is the common two connecting rods cross support, its stability is poor, and due to the setting of cross rod, the cross position does not protrude when folding, not enough beautiful. UTILITY MODEL CONTENTS
[0004] The utility model is mainly to solve the problem of poor stability, not completely folding, and not beautiful, and provides a four-connecting-rod folding director chair.
[0005] The utility model discloses the purpose that can be achieved by adopting the following technical scheme:
[0006] A four-connecting-rod folding director chair, including two supporting legs and the guard bar being installed on two supporting legs respectively, two four-connecting-rod components are arranged between two supporting legs, positioning frame is arranged between two four-connecting-rod components, the four-connecting-rod component includes first upper connecting rod, the upper end of first upper connecting rod is connected with second upper connecting rod by second folding lock buckle, the middle part of second upper connecting rod is connected with first lower connecting rod by pivot, the lower end of first lower connecting rod is connected with second lower connecting rod by second folding lock buckle, the lower end of first upper connecting rod and second upper connecting rod is connected on two supporting legs by link rod respectively, the end wall of link rod away from supporting leg is fixedly connected with limiting folding edge.
[0007] Preferably, the lower end of the supporting leg is provided with a foot pad.
[0008] Preferably, the upper end of the supporting leg and the lower end of the guard bar are clamped by a link member.
[0009] Preferably, the positioning frame includes a left support rod and a right support rod arranged on one side of the left support rod, and the left support rod and the right support rod are movably connected by a first folding lock buckle.
[0010] Preferably, the first folding lock buckle can only be folded to one side.
[0011] Preferably, the intersection of the first upper connecting rod, the second lower connecting rod and the left support rod is rotatably connected by a pivot, and the intersection of the second upper connecting rod and the first lower connecting rod and the right support rod are rotatably connected by a pivot.
[0012] Preferably, the upper ends of the two connecting rods are rotatably connected with the first upper connecting rod and the second upper connecting rod respectively, and the lower ends are rotatably connected with the two legs respectively.
[0013] The beneficial technical effects of the utility model are as follows: according to the four-connecting-rod folding director chair of the utility model, when the middle part of the director chair is opened, the left supporting rod and the right supporting rod are opened to form a rectangular frame through the first folding lock, the opened four-connecting-rod component is fixed to the maximum extent outwardly, the limiting effect is realized, then the first upper connecting rod and the second upper connecting rod can be smoothly opened and closed without being pressed by the legs when being folded and opened through the cooperation of the two connecting rods, meanwhile, the connecting points with the legs are increased through the cooperation of the second lower connecting rod and the first lower connecting rod, the stability is improved, the positioning frame in the middle part does not loosen after the director chair is completely opened, the positioning frame is between the two four-connecting-rod components, the first upper connecting rod and the second upper connecting rod are mutually superposed, the second lower connecting rod and the first lower connecting rod are mutually superposed and do not affect each other, so that the director chair can be completely superposed left and right when being folded, there is no protruding part, and the appearance is more beautiful. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a whole structure schematic view according to a preferred embodiment of the utility model;
[0015] Figure 2 It is a whole structure side view according to a preferred embodiment of the utility model;
[0016] Figure 3 It is a first folding lock structure schematic view according to a preferred embodiment of the utility model;
[0017] Figure 4 It is a connecting rod and limiting folding edge structure schematic view according to a preferred embodiment of the utility model.
[0018] In the drawing: 1, leg; 2, foot pad; 3, guard rod; 4, first lower connecting rod; 5, connecting rod; 6, second lower connecting rod; 7, first upper connecting rod; 8, second upper connecting rod; 9, left supporting rod; 10, right supporting rod; 11, first folding lock; 12, connecting piece; 13, second folding lock; 14, limiting folding edge. DETAILED DESCRIPTION
[0019] In order to make the person skilled in the art more clear and definite the technical scheme of the utility model, the utility model is described in further detail below in combination with embodiments and drawings, but the embodiment of the utility model is not limited to this.
[0020] As Figures 1-4As shown, the four-bar linkage folding director chair provided by the embodiment comprises two legs 1 and a guard rod 3 mounted on the two legs 1 respectively, the lower straight rod of the guard rod 3 is used for sleeving the director chair canopy, and the upper straight rod is used for leaning, two four-bar linkage members are arranged between the two legs 1, a positioning frame is arranged between the two four-bar linkage members, the four-bar linkage member comprises a first upper connecting rod 7, the upper end of the first upper connecting rod 7 is connected with a second upper connecting rod 8 through a second folding lock 13, the middle part of the second upper connecting rod 8 is connected with a first lower connecting rod 4 through a rotating shaft, the lower end of the first lower connecting rod 4 is connected with a second lower connecting rod 6 through a second folding lock 13, the lower ends of the first upper connecting rod 7 and the second upper connecting rod 8 are connected with the two legs 1 through a connecting rod 5 respectively, the side wall of the end of the connecting rod 5 away from the leg 1 is fixedly connected with a limiting folding edge 14, the limiting folding edge 14 is used for limiting when the connecting rod 5 is deflected, so that it cannot be deflected to the outside of the leg 1, a foot pad 2 is mounted at the lower end of the leg 1, the upper end of the leg 1 and the lower end of the guard rod 3 are clamped through a connecting piece 12, the positioning frame comprises a left supporting rod 9 and a right supporting rod 10 arranged on one side of the left supporting rod 9, the left supporting rod 9 and the right supporting rod 10 are movably connected through a first folding lock 11, the first folding lock 11 can only be folded to one side, the first folding lock 11 can only be folded downward when being installed in the normal direction, and will be resisted upward, the intersection of the first upper connecting rod 7, the second lower connecting rod 6 and the left supporting rod 9 is rotatably connected through a rotating shaft, the intersection of the second upper connecting rod 8, the first lower connecting rod 4 and the right supporting rod 10 is rotatably connected through a rotating shaft, the upper ends of the two connecting rods 5 are rotatably connected with the first upper connecting rod 7 and the second upper connecting rod 8 respectively, and the lower ends are rotatably connected with the two legs 1 respectively.
[0021] The four-bar linkage member is used to make the middle part of the director chair open, the left supporting rod 9 and the right supporting rod 10 are used to open the rectangular frame through the first folding lock 11, the limiting is used to make the maximum outward fixed of the opened four-bar linkage member, the limiting effect is realized, then the first upper connecting rod 7 and the second upper connecting rod 8 can be smoothly opened and closed without being resisted by the leg 1 through the cooperation of the two connecting rods 5, the excessive outward rotation of the connecting rod 5 is avoided, the limiting folding edge 14 on the connecting rod 5 is used to make it unable to be deflected to the outside of the leg 1 when being rotated, meanwhile, the connecting points with the leg 1 are increased by cooperating with the second lower connecting rod 6 and the first lower connecting rod 4, the stability is improved, the positioning frame in the middle part will not be loose after the director chair is completely opened, the positioning frame is between the two four-bar linkage members, the first upper connecting rod 7 and the second upper connecting rod 8 are mutually superposed, the second lower connecting rod 6 and the first lower connecting rod 4 are mutually superposed and do not affect each other, so that the director chair can be completely and oppositely superposed when being folded, there is no protruding part, and it is more beautiful.
[0022] In summary, in the present embodiment, the four-bar linkage folding director chair according to the present embodiment, by the four-bar linkage member, when the middle part of the director chair is unfolded, the left support rod 9 and the right support rod 10 are unfolded to form a rectangular frame by the first folding lock 11, the unfolded four-bar linkage member is fixed to the maximum extent outwardly by limiting, the limiting effect is realized, then the first upper connecting rod 7 and the second upper connecting rod 8 are not resisted by the supporting leg 1 and can be smoothly unfolded and folded by the cooperation of the two connecting rods 5, meanwhile, the connecting points with the supporting leg 1 are increased by the cooperation of the second lower connecting rod 6 and the first lower connecting rod 4, the stability is improved, and the positioning frame in the middle part does not loosen after the director chair is completely unfolded.
[0023] The above is only further embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and concept of the present application within the disclosed range, which belongs to the protection scope of the present application.
Claims
1. A four-bar linkage folding director's chair, characterized by, The utility model provides a kind of folding guardrail, including two legs (1) and guardrail (3) respectively installed on two the legs (1), two the legs (1) are provided with two four-link components, two the four-link components are provided with positioning frame, the four-link component includes first upper link (7), the upper end of the first upper link (7) is connected with second upper link (8) by second folding lock (13), the middle part of the second upper link (8) is connected with first lower link (4) by pivot, the lower end of the first lower link (4) is connected with second lower link (6) by second folding lock (13), the lower end of the first upper link (7) and the second upper link (8) is connected on two the legs (1) by link rod (5) respectively, the end side wall of the link rod (5) away from the leg (1) is fixedly connected with limiting flange (14).
2. A four-bar linkage folding director chair according to claim 1, wherein, The lower end of the leg (1) is provided with a foot pad (2).
3. A four-bar linkage folding director chair according to claim 1, wherein, The upper end of the leg (1) and the lower end of the guardrail (3) are clamped by a connecting piece (12).
4. A four-bar linkage folding director chair according to claim 1, wherein, The positioning frame includes a left support rod (9) and a right support rod (10) arranged on one side of the left support rod (9), and the left support rod (9) and the right support rod (10) are movably connected by a first folding lock (11).
5. A four-bar linkage folding director chair according to claim 4, wherein, The first folding lock (11) can only be folded to one side.
6. A four-bar linkage folding director chair according to claim 4, wherein, The intersection of the first upper link (7), the second lower link (6) and the left support rod (9) is rotatably connected by a pivot, and the intersection of the second upper link (8), the first lower link (4) and the right support rod (10) is rotatably connected by a pivot.
7. A four-bar linkage folding director chair according to claim 6, wherein, The upper ends of the two link rods (5) are rotatably connected with the first upper link (7) and the second upper link (8) respectively, and the lower ends are rotatably connected with the two legs (1) respectively.