Folding linkage mechanism
By designing a folding linkage mechanism for office chairs, the problem that traditional office chairs cannot achieve the dual functions of sitting and resting while lying is being solved, and the convenient expansion and closing of footrest is achieved, and wider footrest is provided The area improves the comfort and operational convenience of office staff.
Patent Information
- Application Number
- CN202420559772.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-21
AI Technical Summary
Traditional office chairs cannot achieve the dual functions of sitting and lying to rest, and the existing footrests are narrow in width, which cannot provide sufficient comfort and width, making it difficult to meet the needs of office workers when lying on a chair to rest.
A folding linkage mechanism is designed, including a first folding plate, a second folding plate and a third folding plate. Through the linkage assembly, the second folding plate and the third folding plate are realized to realize the unfolding and closing action of the footrest. .
It realizes convenient expansion and closing of footrest, provides a wider footrest area, and improves the comfort and convenience of office workers in resting while lying on chairs.
Smart Images
Figure CN222466464U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of furniture, in particular to a folding linkage mechanism. Background Art
[0002] Chairs are office furniture for people to sit on when working or studying. Office workers will feel tired after sitting for a long time. In order to relieve work fatigue, office workers need to rest and relax after sitting for a long time. Traditional office chairs are composed of backrests, seat cushions and supporting legs. The positions of backrests and seat cushions are relatively fixed, and people cannot lie down to rest. Office workers usually need to purchase furniture suitable for lying down to realize sitting and working, but this requires office space and is not suitable for offices with narrow space.
[0003] When lying on a chair to rest, people hope to have a footrest to support their legs and feet, but the existing footrest is narrow and will put pressure on the human body. In order to have a more comfortable and wide footrest, it is necessary to provide a folding linkage mechanism in the footrest to facilitate the movement of unfolding and folding the footrest. Summary of the invention
[0004] In order to solve the above-mentioned technical problems, the utility model provides a folding linkage mechanism, including a first folding plate, a second folding plate and a third folding plate. The second folding plate and the third folding plate are respectively arranged on both sides of the first folding plate, and the two are linked by a linkage component; the linkage component includes a driving structure, a driven structure and a push-pull member. The driving structure connects the second folding plate with the first folding plate and the push-pull member, and the driven structure connects the third folding plate with the push-pull member. When driving the second folding plate, chain transmission is realized, and then the third folding plate is driven, so as to form a folding linkage between the second folding plate and the third folding plate relative to the first folding plate. The operation is convenient and quick, and can be completed in one step.
[0005] The technical solution of the utility model is achieved in this way:
[0006] A folding linkage mechanism comprises a first folding plate, a second folding plate and a third folding plate, the second folding plate and the third folding plate are respectively arranged on both sides of the first folding plate, a linkage component is arranged between the second folding plate and the third folding plate, and the second folding plate and the third folding plate are linked by the linkage component; the linkage component comprises a push-pull member, a driven structure and a driving structure, the second folding plate is connected to the first folding plate through the driving structure, the third folding plate is connected to the first folding plate through the driven structure, the driving structure and the driven structure are connected through the push-pull member, and the linkage component is configured so that when the second folding plate is flipped, the driving structure drives the push-pull member to move, the push-pull member drives the driven structure to move, and the driven structure drives the third folding plate to rotate in the same direction relative to the first folding plate.
[0007] When the second folding plate moves, it is transmitted by the push-pull member, which gives the third folding plate a force in the same direction, so that the second folding plate and the third folding plate can be linked in the same direction, thereby realizing the folding and unfolding of the second folding plate and the third folding plate on the first folding plate in a linked manner. The operation is convenient and quick, and can be completed in one step.
[0008] Preferably, the driving structure includes a first connecting rod, a second connecting rod, a first guide groove structure provided between the first connecting rod and the second folding plate, and a second guide groove structure provided between the second connecting rod and the first folding plate; the driven structure includes a third guide groove structure provided between the push-pull member and the third folding plate; the first connecting rod is rotatably connected to the first folding plate, the second connecting rod and the push-pull member respectively, and the second connecting rod is rotatably connected to the second folding plate; the end of the third folding plate is rotatably connected to the end of the first folding plate; and a third connecting rod is further provided between the first folding plate and the push-pull member. The first folding plate, the first connecting rod, the push-pull member and the third connecting rod form a four-bar linkage, which can realize the synchronous linkage of the second folding plate and the third folding plate, and is easy to operate; the guide groove structure can realize the relative rotation between the two rods, and can also provide a margin for relative movement between the two rods, so that the linkage is carried out smoothly and motion interference is prevented.
[0009] Preferably, the first guide groove structure includes a first guide groove and a first sliding member, the first guide groove is arranged on the second folding plate, the first sliding member is arranged on the first connecting rod, and the first sliding member is arranged in the first guide groove; the second guide groove structure includes a second guide groove and a second sliding member, the second guide groove is arranged on the first folding plate, the second sliding member is arranged on the second connecting rod, and the second sliding member is arranged in the second guide groove; the third guide groove structure includes a third guide groove and a third sliding member, the third guide groove is arranged on the third folding plate, the third sliding member is arranged on the push-pull member, and the third sliding member is arranged in the third guide groove. When the second folding plate and the third folding plate move, the sliding member can move back and forth in the corresponding guide groove to realize the relative movement between the rods.
[0010] Preferably, the first connecting rod is roughly T-shaped, the second connecting rod is roughly U-shaped, the first connecting rod and the second connecting rod are staggered, and the middle of the first connecting rod is rotatably connected with the middle of the second connecting rod. The first connecting rod and the second connecting rod are a driving structure, which is used to drive the push-pull member to move according to a preset motion trajectory after flipping the second folding plate.
[0011] Preferably, the driving structure includes a first connecting rod; the driven structure includes a third guide groove structure arranged between the push-pull member and the third folding plate; the first connecting rod is rotatably connected to the first folding plate, the second folding plate and the push-pull member respectively; the end of the third folding plate is rotatably connected to the end of the first folding plate; and a third connecting rod is further arranged between the first folding plate and the push-pull member. This solution simplifies the linkage assembly and realizes the linkage between the second folding plate and the third folding plate under a simple structure.
[0012] Preferably, the first connecting rod is provided with a stopper, and the second folding plate is selectively abutted against the stopper, and the stopper is configured so that when the second folding plate rotates to abut against the stopper, the second folding plate continues to rotate to drive the first connecting rod to move. The movement of the first connecting rod can realize the linkage of the push-pull member and the third folding plate.
[0013] Preferably, the push-pull member is arranged beside the first folding plate and moves relative to the first folding plate; when the push-pull member moves relative to the first folding plate, it drives the second folding plates and the third folding plates on both sides to rotate in the same direction.
[0014] The design starting point, concept and beneficial effects of the utility model using the above technical solution are:
[0015] When the second folding plate moves, it is transmitted by the push-pull member, which gives the third folding plate a force in the same direction, so that the second folding plate and the third folding plate can be linked in the same direction, thereby realizing the folding and unfolding of the second folding plate and the third folding plate on the first folding plate in a linked manner. The operation is convenient and quick, and can be completed in one step. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the seat footrest in the unfolded state in Example 1 of the present invention;
[0017] Figure 2 A side view of the seat footrest in the unfolded state in Example 1 of the utility model;
[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the seat footrest when switching between the unfolded state and the stacked state in Example 1 of the present invention;
[0019] Figure 4 A side view of the seat footrest when switching between the unfolded state and the stacked state in Embodiment 1 of the present invention;
[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the seat footrest in the stacked state in Example 1 of the present invention;
[0021] Figure 6 It is a side view of the seat footrest in the stacked state in Example 1 of the present invention;
[0022] Figure 7 The three-dimensional structure of the seat and the footrest of the seat in the first embodiment of the present invention is shown in FIG. Figure 1 ;
[0023] Figure 8 The three-dimensional structure of the seat and the footrest of the seat in the first embodiment of the present invention is shown in FIG. Figure 2 ;
[0024] Fig. 9 This is a schematic diagram of the seat footrest being unfolded and folded on the seat in Example 1 of the present utility model;
[0025] Fig.10 This is a schematic diagram of a seating area formed on the seat in Embodiment 1 of the present invention;
[0026] Fig.11 This is a schematic diagram of the three-dimensional structure of the seat footrest in the unfolded state in Example 2 of the present utility model;
[0027] Fig.12 A side view of the seat footrest in the unfolded state in Example 2 of the present utility model;
[0028] Fig.13 It is a schematic diagram of the second folding plate in Example 2 of the present utility model when it rotates to abut against the limiting portion;
[0029] Fig.14 This is a schematic diagram of the three-dimensional structure of the seat footrest in the stacked state in Example 2 of the present invention;
[0030] Fig.15 This is a side view of the seat footrest in the stacked state in Example 2 of the present invention.
[0031] The figures are marked as follows: middle support assembly 1; upper support assembly 2; lower support assembly 3; seat 4; telescopic assembly 5; accommodating space 6; base 7; first folding plate 8; push-pull member 9; middle guide groove 10; middle guide member 11; second folding plate 12; first connecting rod 13; second connecting rod 14; third connecting rod 15; third folding plate 16; first guide groove 17; first sliding member 18; third guide groove 19; third sliding member 20; second guide groove 21; second sliding member 22; limiting portion 23. DETAILED DESCRIPTION
[0032] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.
[0034] In the description of the present invention, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance.
[0035] The specific implementation of the utility model is as follows: Example
[0036] like Figure 1-6 As shown, the utility model provides a folding linkage mechanism, including a first folding plate, a second folding plate and a third folding plate, the second folding plate and the third folding plate are respectively arranged on both sides of the first folding plate, a linkage component is provided between the second folding plate and the third folding plate, and the second folding plate and the third folding plate are linked through the linkage component; the linkage component includes a push-pull member, a driven structure and a driving structure, the second folding plate is connected to the first folding plate through the driving structure, the third folding plate is connected to the first folding plate through the driven structure, the driving structure and the driven structure are connected through a push-pull member, and the linkage component is configured so that when the second folding plate is flipped, the driving structure drives the push-pull member to move, the push-pull member drives the driven structure to move, and the driven structure drives the third folding plate to rotate in the same direction relative to the first folding plate.
[0037] The folding linkage mechanism is used in a multi-section seat footrest, which includes a middle support assembly 1, at least one upper support assembly 2 and at least one lower support assembly 3. The upper support assembly 2 and the lower support assembly 3 are respectively arranged at the two ends of the middle support assembly 1. The upper support assembly 2 and the lower support assembly 3 are both rotatably arranged relative to the middle support assembly 1, and the upper support assembly 2 and the lower support assembly 3 are linked through the middle support assembly 1; the seat footrest has a stacking state and an unfolded state. In the stacking state, the upper support assembly 2 is located above the middle support assembly 1, and the lower support assembly 3 is located below the middle support assembly 1. The seat footrest is in a multi-layer stacked state; in the unfolded state, the upper support assembly 2 and the lower support assembly 3 are The support components 3 are respectively located on the front and rear sides of the middle support component 1, and the seat footrest is in a single-layer flat state; when switching from the stacked state to the unfolded state, the upper support component 2 is located above the middle support component 1 and rotates and unfolds to one side of the middle support component 1 in the front-to-back direction. Under the linkage action of the upper support member and the lower support member, the lower support component 3 is located below the middle support component 1 and unfolds to the other side of the middle support component 1 in the front-to-back direction; when switching from the unfolded state to the stacked state, the upper support component 2 rotates toward the top of the middle support component 1 to fold the upper support component 2. Under the linkage action of the upper support member and the lower support member, the lower support component 3 rotates toward the bottom of the middle support component 1 to fold the lower support component 3.
[0038] The multi-section seat footrest has a multi-section support component. In terms of support area, it can support the human legs and feet over a large area, reduce the sense of oppression, and greatly improve the comfort of use; in terms of structure, the multi-section support component generates a smaller packaging and transportation cost, and can switch between stacked and unfolded states to reduce the occupied space; in terms of operation, the linkage feature makes the operation simpler and more convenient.
[0039] like Figure 7-10 As shown, the seat footrest is applied to a seat, which includes a seat 4 and the multi-section seat footrest as described above. The seat 4 and the seat footrest are connected by a telescopic component 5. The telescopic component 5 is configured to extend the seat footrest forward in front of the seat 4 by extending the telescopic component 5, and to fold the telescopic component 5 so that the seat footrest is folded under the seat 4; the lower front part of the seat 4 is recessed to form an accommodating space 6, and when the telescopic component 5 is folded, the seat footrest is folded in the accommodating space 6 in a stacked state. When the telescopic component 5 is folded, the seat footrest is folded in the accommodating space 6 in a stacked state, so as to reduce the space utilization rate and enhance the integrity of the seat, and the structure is reasonable and more beautiful; after the telescopic component 5 is extended, the seat footrest can be in the front of the seat 4 in an unfolded state, providing a wide range and comfortable leg and foot support.
[0040] Furthermore, in order to take into account reasonable space utilization, ergonomics and comfort of use, the seat footrest is designed with an automatic tilt function; specifically, the seat footrest also includes a base 7, the middle support assembly 1 is rotatably arranged on the base 7, and the middle support assembly 1 includes a first folding plate 8 and a push-pull member 9; the first folding plate 8 is rotatably connected to the base 7, the push-pull member 9 is connected to the base 7 through a guide groove structure, and the push-pull member 9 is connected to the first folding plate 8 through two swing connecting rods arranged at intervals; the push-pull member 9 is configured to move from a stacked state to an unfolded state, and the push-pull member 9 is under the action of the guide groove structure. It drives the first folding plate 8 to rotate relative to the base 7, and in the unfolded state, the upper support assembly 2, the middle support assembly 1 and the lower support assembly 3 are all tilted with the front lower and the back higher; further, a middle guide groove 10 is opened on the push-pull member 9, and the middle guide groove 10 is a waist-shaped groove with the middle part bent upward. A middle guide member 11 is provided on the base 7, and the middle guide member 11 is arranged in the middle guide groove 10. When the seat footrest switches between the unfolded state and the stacked state, the middle guide groove 10 moves relative to the middle guide member 11, and the push-pull member 9 drives the first folding plate 8 to rotate relative to the base 7.
[0041] This scheme realizes the automatic tilting function of the seat footrest, that is, in the unfolded state, the middle support component 1, the upper support component 2 and the lower support component 3 can all be tilted at a certain angle, so that the human legs and feet can naturally rest on the seat footrest, thereby improving comfort; in the stacked state, the three can return to a horizontal posture and can be folded back under the seat 4 in a snug manner; further, two swing connecting rods arranged at intervals make the first folding plate 8, the push-pull member 9 and the connecting rod therebetween constitute a four-bar linkage, thereby realizing the linkage of the first folding plate 8 and the push-pull member 9; the middle guide groove 10 is a waist-shaped groove with an upward bend in the middle, which is the basis for automatic tilting, and the first folding plate 8 and the push-pull member 9 are rotated relative to the base 7 by changing the different positions and angles of the middle guide member 11 in the middle guide groove 10. The main function of the middle guide groove 10 and the middle guide member 11 is to realize that the seat footrest has an angle change in the stacked state and the unfolded state, especially in the unfolded state, the tilted footrest is more ergonomic.
[0042] In order to realize the synchronous movement of the upper support assembly 2 and the lower support assembly 3, in this embodiment, the upper support assembly 2 includes a second folding plate 12, a first connecting rod 13 and a second connecting rod 14, the middle support assembly 1 includes a third connecting rod 15 and the first folding plate 8 and the push-pull member 9, and the lower support assembly 3 includes a third folding plate 16; the first connecting rod 13 and the second folding plate 12 are connected by a first guide groove structure, the second connecting rod 14 is rotatably connected to the second folding plate 12 and the first connecting rod 13, and the second connecting rod 14 is connected to the first folding plate 8 by a second guide groove structure; the first folding plate 8 The rear end is connected to the rear end of the push-pull member 9 through the first connecting rod 13, and the front of the first folding plate 8 is connected to the front of the push-pull member 9 through the third connecting rod 15; the third folding plate 16 is rotatably connected to the front end of the first folding plate 8, and the third folding plate 16 is connected to the front end of the push-pull member 9 through the third guide groove structure; when the second folding plate 12 is driven to move, the second folding plate 12 drives the first connecting rod 13 and the second connecting rod 14 to move, and the first connecting rod 13 and the second connecting rod 14 drive the first folding plate 8 and the push-pull member 9 to move relative to each other, and the relative movement of the first folding plate 8 and the push-pull member 9 can drive the third folding plate 16 to move. In this scheme, the upper support assembly 2 and the lower support assembly 3 can realize synchronous movement, and when the upper support assembly 2 is unfolded, the lower support assembly 3 is also unfolded, which is convenient and simple to operate.
[0043] If only the second folding plate 12 and the third folding plate 16 are required to rotate relative to the first folding plate 8, it is only necessary to rotatably connect the second folding plate 12 and the third folding plate 16 to the first folding plate 8. However, if the second folding plate 12 and the third folding plate 16 are to be synchronously moved, a plurality of linkage parts are indispensable between the three. The linkage parts in this embodiment are connecting rod parts and guide groove structures. The connecting rod parts are used for connection and transmission, while the guide groove structure is used to specify the motion trajectory, so that the whole can realize linkage while performing preset actions; such as the first folding plate 8, the push-pull member 9 and the connecting rod therebetween constitute a four-bar linkage mechanism, the purpose of the guide groove structure is to leave a movement margin, the guide member can move back and forth in the guide groove structure, and at the same time, the relative rotation between the two rods can be realized. Since the guide member can move back and forth in the guide groove and rotate relative to the guide groove, the relative rotation and movement between the two rods can be realized. At the same time, the guide groove provides a limit for the guide member, thereby ensuring the standardization and smoothness of the overall movement.
[0044] Specifically, the guide groove structure between the second folding plate 12 and the first connecting rod 13 includes a first guide groove 17 and a first sliding member 18, the first sliding member 18 is arranged at the end of the first connecting rod 13, the first guide groove 17 is opened on the second folding plate 12, and the first sliding member 18 is arranged in the first guide groove 17; the guide groove structure between the push-pull member 9 and the base 7 is not repeated; the guide groove structure between the third folding plate 16 and the push-pull member 9 includes a third guide groove 19 and a third sliding member 20, the third guide groove 19 is opened at the rear end of the third folding plate 16, the third sliding member 20 is arranged at the front end of the push-pull member 9, and the third sliding member 20 is arranged in the third guide groove 19, and the guide groove structure here is used to drive the third folding plate 16 to move; the guide groove structure between the second connecting rod 14 and the first folding plate 8 It includes a second guide groove 21 and a second sliding member 22. The second guide groove 21 is opened on the first folding plate 8. The second sliding member 22 is arranged at the end of the second connecting rod 14. The second sliding member 22 is arranged in the second guide groove 21, so that when the seat footrest is switched in state, the second connecting rod 14 can adaptively move relative to the first folding plate 8, thereby realizing smooth movement; taking the second folding plate 12 and the first connecting rod 13 as an example, the guide groove structure is configured so that when the second folding plate 12 moves, the first connecting rod 13 can be driven to rotate and move relative to the second folding plate 12 through the guide groove structure; when the state is switched, the first sliding member 18, the third sliding member 20 and the second sliding member 22 will move back and forth in the first guide groove 17, the third guide groove 19 and the second guide groove 21 accordingly.
[0045] To further illustrate, the driving structure includes a first connecting rod, a second connecting rod, a first guide groove structure, a second guide groove structure, and the driven structure includes a third guide groove structure.
[0046] To be more specific, the first connecting rod 13 is roughly T-shaped and has three ends, which are respectively used to rotatably connect the second folding plate 12, the first folding plate 8 and the push-pull member 9. The two swing connecting rods between the first folding plate 8 and the push-pull member 9 are the first connecting rod 13 and the third connecting rod 15; the second connecting rod 14 is roughly U-shaped, and its two ends are connected to the second folding plate 12 and the first folding plate 8, and its middle part is rotatably connected to the first connecting rod 13. When the second folding plate 12 moves through the first connecting rod 13 and the second connecting rod 14, the first folding plate 8 and the push-pull member 9 are linked without interference, and then the third folding plate 16 is linked. Example
[0047] The difference between this embodiment and embodiment 1 lies in the different driving structures. Specifically:
[0048] like Figure 11-15 As shown, in order to simplify the structure as much as possible and save production costs, the upper support assembly 2 is simplified to only the second folding plate 12 and the first connecting rod 13, and the second folding plate 12 is rotatably connected to the first connecting rod 13; the first connecting rod 13 is convexly provided with a limiting portion 23, and the limiting portion 23 is configured so that when moving from the stacked state to the unfolded state, the second folding plate 12 first rotates relative to the first connecting rod 13, and when the second folding plate 12 rotates to abut against the limiting portion 23, the second folding plate 12 continues to rotate to drive the first connecting rod 13 to move; in the unfolded state, the second folding plate 12 rests on the limiting portion 23; the rotation of the second folding plate 12 is limited by the limiting portion 23, and after the second folding plate 12 rotates to abut against the limiting portion 23, the second folding plate 12 continues to rotate to drive the first connecting rod 13 to move, thereby driving the overall linkage.
[0049] In this scheme, the second folding plate 12 and the third folding plate 16 move asynchronously, but the upper support assembly 2 and the lower support assembly 3 are still in linkage; in this scheme, the second folding plate 12 is rotated first, and after the second folding plate 12 is rotated to a certain angle, the first connecting rod 13 will move accordingly, thereby realizing the overall linkage. The structure of this scheme is simpler and the production cost is lower.
[0050] To further illustrate, the driving structure includes a first connecting rod, and the driven structure includes a third guide groove structure.
Claims
1. A folding linkage mechanism, characterized in that: The foldable plate comprises a first folding plate, a second folding plate and a third folding plate, wherein the second folding plate and the third folding plate are respectively arranged on both sides of the first folding plate, a linkage component is arranged between the second folding plate and the third folding plate, and the second folding plate and the third folding plate are linked by the linkage component; the linkage component comprises a push-pull member, a driven structure and a driving structure, the second folding plate is connected to the first folding plate through the driving structure, the third folding plate is connected to the first folding plate through the driven structure, the driving structure and the driven structure are connected through a push-pull member, and the linkage component is configured such that when the second folding plate is flipped, the driving structure drives the push-pull member to move, the push-pull member drives the driven structure to move, and the driven structure drives the third folding plate to rotate in the same direction relative to the first folding plate.
2. The folding linkage mechanism according to claim 1, characterized in that: The driving structure includes a first connecting rod, a second connecting rod, a first guide groove structure arranged between the first connecting rod and the second folding plate, and a second guide groove structure arranged between the second connecting rod and the first folding plate; the driven structure includes a third guide groove structure arranged between the push-pull member and the third folding plate; the first connecting rod is rotatably connected to the first folding plate, the second connecting rod and the push-pull member respectively, and the second connecting rod is rotatably connected to the second folding plate; the end of the third folding plate is rotatably connected to the end of the first folding plate; and a third connecting rod is also provided between the first folding plate and the push-pull member.
3. The folding linkage mechanism according to claim 2, characterized in that: The first guide groove structure includes a first guide groove and a first sliding member, the first guide groove is opened on the second folding plate, the first sliding member is arranged on the first connecting rod, and the first sliding member is arranged in the first guide groove; the second guide groove structure includes a second guide groove and a second sliding member, the second guide groove is opened on the first folding plate, the second sliding member is arranged on the second connecting rod, and the second sliding member is arranged in the second guide groove; the third guide groove structure includes a third guide groove and a third sliding member, the third guide groove is opened on the third folding plate, the third sliding member is arranged on the push-pull member, and the third sliding member is arranged in the third guide groove.
4. The folding linkage mechanism according to claim 2, characterized in that: The first connecting rod is roughly T-shaped, the second connecting rod is roughly U-shaped, the first connecting rod and the second connecting rod are staggered, and the middle part of the first connecting rod is rotatably connected with the middle part of the second connecting rod.
5. The folding linkage mechanism according to claim 1, characterized in that: The driving structure includes a first connecting rod; the driven structure includes a third guide groove structure arranged between the push-pull member and the third folding plate; the first connecting rod is rotatably connected to the first folding plate, the second folding plate and the push-pull member respectively; the end of the third folding plate is rotatably connected to the end of the first folding plate; and a third connecting rod is also arranged between the first folding plate and the push-pull member.
6. The folding linkage mechanism according to claim 5, characterized in that: The first connecting rod is convexly provided with a limiting portion, and the second folding plate selectively abuts against the limiting portion. The limiting portion is configured so that when the second folding plate rotates to abut against the limiting portion, the second folding plate continues to rotate to drive the first connecting rod to move.
7. The folding linkage mechanism according to claim 1, characterized in that: The push-pull member is arranged beside the first folding plate and moves relative to the first folding plate; when the push-pull member moves relative to the first folding plate, it drives the second folding plates and the third folding plates on both sides to rotate in the same direction.