Seat folding structure with linkage and limiting

Abstract

The utility model discloses a seat folding structure with linkage and limiting, including seat chair, chair board and chair frame, the both sides of chair board are positioned with upper folding mechanism, the both sides of seat chair's upper end are positioned with lower folding mechanism, be provided with first folding support rod and second folding support rod between lower folding mechanism and upper folding mechanism, the bottom of chair frame is installed with folding regulator, and the inboard of folding regulator is provided with linkage assembly, and folding regulator is connected between upper folding mechanism, and linkage assembly is connected between second folding support rod. The utility model discloses a seat folding structure with linkage and limiting is equipped with multiple rotation point linkage structure and upper and lower double limiting structure, can through the quick folding contraction of seat of multiple point rotation, and the contraction operation is more simple and convenient, can also be convenient for supporting and limiting when the seat props up, need not additional positioning assembly, double limiting support, more stable.

Description

Technical Field

[0001] This utility model relates to the field of seat folding technology, and in particular to a seat folding structure with linkage and limiting. Background Technology

[0002] A folding chair structure is a structure that allows a chair to be quickly folded and retracted. The support structure is a key part of a folding chair and is usually made of metal materials. It has good strength and toughness to support the weight of the human body and maintain stability. The support structure is usually designed to be foldable and is divided into several parts by connecting parts such as hinges, thereby realizing the folding function of the chair. With the continuous development of technology, people's requirements for folding chair structures are also getting higher and higher.

[0003] Existing seat folding structures have certain drawbacks. First, folding and retracting them is cumbersome and requires additional positioning components, making it difficult to fold and retract quickly and conveniently, which negatively impacts actual use. Therefore, we propose a seat folding structure with linkage and limiting functions. Utility Model Content

[0004] Technical problem solved: In view of the shortcomings of the prior art, this utility model provides a seat folding structure with linkage and limiting, which is equipped with a multi-rotation point linkage structure and upper and lower double limiting structure. It can quickly fold and retract the seat through multi-point rotation, making the retraction operation simpler and more convenient. It can also facilitate support and limiting when the seat is raised without the need for additional positioning components. The double limiting support is more stable and can effectively solve the problems in the background art.

[0005] Technical Solution: To achieve the above objectives, the technical solution adopted by this utility model is as follows: a seat folding structure with linkage and limiting, including a seat, a seat board, and a seat frame. Upper folding mechanisms are positioned on both sides of the seat board, and lower folding mechanisms are positioned on both sides of the upper end of the seat. A first folding support rod and a second folding support rod are provided between the lower folding mechanisms and the upper folding mechanisms. A folding adjuster is installed at the bottom of the seat frame. A linkage component is provided inside the folding adjuster. The folding adjuster is connected to the upper folding mechanism, and the linkage component is connected to the second folding support rod. A third pivot point is provided between the upper folding mechanism and the first folding support rod. A sixth pivot point is provided between the folding mechanism and the second folding support rod; a seventh pivot point is provided between the linkage component and the second folding support rod; a fifth pivot point is provided between the upper folding mechanism and the folding adjuster; a fourth pivot point is provided between the linkage component and the folding adjuster; a second pivot point is provided between the lower folding mechanism and the first folding support rod; a first pivot point is provided between the lower folding mechanism and the second folding support rod; a limit piece is positioned on the inner top of the upper folding mechanism; a limit end is integrally formed at the front end of the folding adjuster; a limit groove is formed at the front bottom of the folding adjuster; and a limit tip is integrally formed on the top side of the second folding support rod corresponding to the position of the limit groove.

[0006] Preferably, the upper folding mechanism, chair frame, first folding support rod, second folding support rod and seat are linked and adjusted through a first pivot point, a second pivot point, a third pivot point, a fifth pivot point, a sixth pivot point, a fourth pivot point and a seventh pivot point. When the fourth pivot point, the fifth pivot point and the seventh pivot point are adjusted to a straight line, the chair frame is manually bent to lock and position the limiting groove and the limiting tip.

[0007] Preferably, the lower folding mechanism rotates with the first folding support rod through a second pivot point, the second folding support rod rotates with the lower folding mechanism through a first pivot point, the first folding support rod rotates with the upper folding mechanism through a third pivot point, and the second folding support rod rotates with the upper folding mechanism through a sixth pivot point.

[0008] Preferably, the linkage component rotates with the folding adjuster via a fourth pivot point, the folding adjuster rotates with the upper folding mechanism via a fifth pivot point, and the linkage component rotates with the second folding support rod via a seventh pivot point.

[0009] Preferably, the folding adjuster and the upper end of the upper folding mechanism are limited by a limiting piece and a limiting end.

[0010] Preferably, the lower ends of the folding adjuster, the upper folding mechanism, and the second folding support rod are limited by a limiting tip and a limiting groove.

[0011] Preferably, the side of the folding adjuster is positioned with a limit rod, a connecting clip is provided between the upper folding mechanism and the limit rod, a hole is provided in the middle of the upper folding mechanism, a spring is connected between the hole and the connecting clip, and a connecting rod is positioned at the tail of the connecting clip.

[0012] Beneficial effects: Compared with the prior art, this utility model provides a seat folding structure with linkage and limiting, which has the following beneficial effects: This seat folding structure with linkage and limiting is equipped with a multi-rotation point linkage structure and an upper and lower double limiting structure, which can quickly fold and retract the seat through multi-point rotation. The retraction operation is simpler and more convenient. It can also facilitate support and limiting when the seat is raised without the need for additional positioning components. The double limiting support is more stable. The entire seat folding structure is simple in structure, easy to operate, and has a better effect than the traditional method. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a seat folding structure with linkage and limiting according to this utility model.

[0014] Figure 2 This is a schematic diagram of the inclined plane view of a seat folding structure with linkage and limiting according to this utility model.

[0015] Figure 3 This is a side view schematic diagram of a seat folding structure with linkage and limiting according to this utility model.

[0016] Figure 4 This is a structural schematic diagram of point A in a seat folding structure with linkage and limiting according to this utility model.

[0017] Figure 5 This is a structural schematic diagram of section B in a seat folding structure with linkage and limiting according to this utility model.

[0018] Figure 6 This is a structural schematic diagram of point C in a seat folding structure with linkage and limiting according to this utility model.

[0019] Figure 7 This is a structural schematic diagram of the lower side of a seat folding structure with linkage and limiting, according to the present invention.

[0020] Figure 8 This is a structural schematic diagram of point D in the seat folding structure with linkage and limiting of this utility model.

[0021] Figure 9This is a schematic diagram of the overall folding structure of a seat folding structure with linkage and limiting according to this utility model.

[0022] In the diagram: 1. Seat seat; 2. Second folding support rod; 3. First pivot point; 4. Lower folding mechanism; 5. Second pivot point; 6. First folding support rod; 7. Upper folding mechanism; 8. Seat panel; 9. Seat frame; 10. Folding adjuster; 11. Third pivot point; 12. Limiting plate; 13. Fourth pivot point; 14. Linkage assembly; 15. Fifth pivot point; 16. Limiting tip; 17. Sixth pivot point; 18. Seventh pivot point; 19. Limiting end; 20. Limiting groove; 21. Connecting clip; 22. Limiting rod; 23. Connecting rod; 24. Spring; 25. Hole. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the embodiments described below are only some embodiments of this utility model, not all embodiments, and are only used to illustrate this utility model, and should not be regarded as limiting the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] like Figure 1-9As shown, a seat folding structure with linkage and limiting includes a seat 1, a seat plate 8, and a seat frame 9. Upper folding mechanisms 7 are positioned on both sides of the seat plate 8, and lower folding mechanisms 4 are positioned on both sides of the upper end of the seat 1. A first folding support rod 6 and a second folding support rod 2 are provided between the lower folding mechanisms 4 and the upper folding mechanisms 7. A folding adjuster 10 is installed at the bottom of the seat frame 9. A linkage component 14 is provided inside the folding adjuster 10. The folding adjuster 10 is connected to the upper folding mechanism 7, and the linkage component 14 is connected to the second folding support rod 2. A third pivot point 11 is provided between the upper folding mechanism 7 and the first folding support rod 6, a sixth pivot point 17 is provided between the upper folding mechanism 7 and the second folding support rod 2, and a seventh pivot point 18 is provided between the linkage component 14 and the second folding support rod 2. The upper folding mechanism 7 and the folding adjuster 10 are connected. A fifth pivot point 15 is provided between the actuators 10, a fourth pivot point 13 is provided between the linkage component 14 and the folding adjuster 10, a second pivot point 5 is provided between the lower folding mechanism 4 and the first folding support rod 6, a first pivot point 3 is provided between the lower folding mechanism 4 and the second folding support rod 2, a limiting piece 12 is positioned on the inner top of the upper folding mechanism 7, a limiting end 19 is integrally formed at the front end of the folding adjuster 10, a limiting groove 20 is opened at the front bottom of the folding adjuster 10, and a limiting tip 16 is integrally formed on the top side of the second folding support rod 2 corresponding to the position of the limiting groove 20. It is equipped with a multi-pivot linkage structure and an upper and lower double limiting structure, which can quickly fold and retract the seat through multi-point rotation, making the retraction operation simpler and more convenient. It can also facilitate support and limiting when the seat is raised, without the need for additional positioning components. The double limiting support is more stable.

[0027] like Figure 1-6 As shown, the upper folding mechanism 7, chair frame 9, first folding support rod 6, second folding support rod 2, and seat 1 are linked and adjusted through first pivot point 3, second pivot point 5, third pivot point 11, fifth pivot point 15, sixth pivot point 17, fourth pivot point 13, and seventh pivot point 18. When the fourth pivot point 13, fifth pivot point 15, and seventh pivot point 18 are adjusted to a straight line, the chair frame 9 is manually moved to lock and position the limiting groove 20 and the limiting tip 16. The lower folding mechanism 4 and the first folding support rod 6 are rotated through the second pivot point 5. The second folding support rod 2 rotates with the lower folding mechanism 4 through the first pivot point 3; the first folding support rod 6 rotates with the upper folding mechanism 7 through the third pivot point 11; the second folding support rod 2 rotates with the upper folding mechanism 7 through the sixth pivot point 17; the linkage component 14 rotates with the folding adjuster 10 through the fourth pivot point 13; the folding adjuster 10 rotates with the upper folding mechanism 7 through the fifth pivot point 15; and the linkage component 14 rotates with the second folding support rod 2 through the seventh pivot point 18.

[0028] like Figure 4 ,5 As shown in Figure 6, the upper end of the folding adjuster 10 and the upper folding mechanism 7 are limited by the limiting piece 12 and the limiting end 19, and the lower ends of the folding adjuster 10, the upper folding mechanism 7 and the second folding support rod 2 are limited by the limiting tip 16 and the limiting groove 20.

[0029] like Figure 7 , 8 As shown in Figure 9, the side of the folding adjuster 10 is positioned by a limit rod 22. A connecting clip 21 is provided between the upper folding mechanism 7 and the limit rod 22. A hole 25 is provided in the middle of the upper folding mechanism 7. A spring 24 is connected between the hole 25 and the connecting clip 21. A connecting rod 23 is positioned at the tail of the connecting clip 21. The use of the spring facilitates the tightening operation and has the effect of preventing it from falling off.

[0030] Working Principle: This utility model includes a seat 1, a second folding support rod 2, a first pivot point 3, a lower folding mechanism 4, a second pivot point 5, a first folding support rod 6, an upper folding mechanism 7, a seat board 8, a seat frame 9, a folding adjuster 10, a third pivot point 11, a limiting piece 12, a fourth pivot point 13, a linkage component 14, a fifth pivot point 15, a limiting tip 16, a sixth pivot point 17, a seventh pivot point 18, a limiting end 19, a limiting groove 20, a connecting clip 21, a limiting rod 22, a connecting rod 23, a spring 24, and a hole 25. The upper folding mechanism 7, the seat frame 9, the first folding support rod 6, the second folding support rod 2, and the seat 1 are connected by the first pivot point 3, the second pivot point 5, the third pivot point 11, the fifth pivot point 15, the sixth pivot point 17, the fourth pivot point 18, the fifth pivot point 19, the sixth pivot point 10, the seventh pivot point 10, the fifth pivot point 11, the seventh pivot point 12, the seventh pivot point 13, the eighth pivot point 14, the ninth pivot point 15, the tenth pivot point 16, the eleventh pivot point 18, the eleventh pivot point 19, the eleventh pivot point 10, the eleventh pivot point 11, the eleventh pivot point 12, the eleventh pivot point 13, the eleventh pivot point 14, the eleventh pivot point 15, the eleventh pivot point 16, the eleventh pivot point 17, the eleventh pivot point 18, the eleventh pivot point 19, the eleventh pivot point 10, the eleventh pivot point 11 Rotating point 13 and the seventh rotating point 18 are adjusted in a coordinated manner. When the fourth rotating point 13, the fifth rotating point 15 and the seventh rotating point 18 are adjusted to a straight line, the chair frame 9 is manually moved to lock and position the limiting groove 20 and the limiting tip 16. The upper end of the folding adjuster 10 and the upper folding mechanism 7 are limited by the limiting piece 12 and the limiting end 19. The lower ends of the folding adjuster 10, the upper folding mechanism 7 and the second folding support rod 2 are limited by the limiting tip 16 and the limiting groove 20. It is equipped with a multi-rotating point linkage structure and an upper and lower double limiting structure, which can quickly fold and retract the seat through multi-point rotation. The retraction operation is simpler and more convenient. It can also facilitate support and limitation when the seat is raised without the need for additional positioning components. The double limiting support is more stable.

[0031] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A seat folding structure with linkage and limiting, comprising a seat base (1), a seat board (8), and a seat frame (9), characterized in that: Both sides of the chair board (8) are provided with upper folding mechanisms (7), and both sides of the upper end of the seat (1) are provided with lower folding mechanisms (4). A first folding support rod (6) and a second folding support rod (2) are provided between the lower folding mechanism (4) and the upper folding mechanism (7). A folding adjuster (10) is installed at the bottom of the chair frame (9). A linkage component (14) is provided on the inner side of the folding adjuster (10). The folding adjuster (10) is connected to the upper folding mechanism (7), and the linkage component (14) is connected to the second folding support rod (2). A third pivot point (11) is provided between the upper folding mechanism (7) and the first folding support rod (6). A sixth pivot point (17) is provided between the upper folding mechanism (7) and the second folding support rod (2). The linkage component (14) is connected to the second folding support rod (2). A seventh pivot point (18) is provided between the stacking support rods (2), a fifth pivot point (15) is provided between the upper folding mechanism (7) and the folding adjuster (10), a fourth pivot point (13) is provided between the linkage component (14) and the folding adjuster (10), a second pivot point (5) is provided between the lower folding mechanism (4) and the first folding support rod (6), a first pivot point (3) is provided between the lower folding mechanism (4) and the second folding support rod (2), a limiting piece (12) is positioned on the inner side of the top of the upper folding mechanism (7), a limiting end (19) is integrally formed at the front end of the folding adjuster (10), a limiting groove (20) is opened at the front bottom of the folding adjuster (10), and a limiting tip (16) is integrally formed on the top side of the second folding support rod (2) corresponding to the position of the limiting groove (20).

2. The seat folding structure with linkage and limiting as described in claim 1, characterized in that: The upper folding mechanism (7), chair frame (9), first folding support rod (6), second folding support rod (2) and seat (1) are linked and adjusted through the first pivot point (3), second pivot point (5), third pivot point (11), fifth pivot point (15), sixth pivot point (17), fourth pivot point (13) and seventh pivot point (18). When the fourth pivot point (13), fifth pivot point (15) and seventh pivot point (18) are adjusted to a straight line, the chair frame (9) is manually bent to lock and position the limiting groove (20) and the limiting tip (16).

3. The seat folding structure with linkage and limiting as described in claim 1, characterized in that: The lower folding mechanism (4) rotates with the first folding support rod (6) through the second pivot point (5), the second folding support rod (2) rotates with the lower folding mechanism (4) through the first pivot point (3), the first folding support rod (6) rotates with the upper folding mechanism (7) through the third pivot point (11), and the second folding support rod (2) rotates with the upper folding mechanism (7) through the sixth pivot point (17).

4. The seat folding structure with linkage and limiting as described in claim 1, characterized in that: The linkage component (14) rotates with the folding adjuster (10) through the fourth pivot point (13), the folding adjuster (10) rotates with the upper folding mechanism (7) through the fifth pivot point (15), and the linkage component (14) rotates with the second folding support rod (2) through the seventh pivot point (18).

5. A seat folding structure with linkage and limiting as described in claim 1, characterized in that: The folding adjuster (10) and the upper end of the upper folding mechanism (7) are limited by a limiting piece (12) and a limiting end (19).

6. A seat folding structure with linkage and limiting as described in claim 1, characterized in that: The lower ends of the folding adjuster (10), the upper folding mechanism (7), and the second folding support rod (2) are limited by the limiting tip (16) and the limiting groove (20).

7. A seat folding structure with linkage and limiting as described in claim 1, characterized in that: The side of the folding adjuster (10) is positioned by a limiting rod (22), and a connecting clip (21) is provided between the upper folding mechanism (7) and the limiting rod (22). A hole (25) is opened in the middle of the upper folding mechanism (7), and a spring (24) is connected between the hole (25) and the connecting clip (21). A connecting rod (23) is positioned at the tail of the connecting clip (21).

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