Seat folding mechanism

Abstract

A seat folding mechanism comprises a supporting assembly, a folding piece, a locking structure and a goods shelf. One end of the folding piece is hinged to the supporting assembly, and the other end of the folding piece is hinged into the goods shelf. When the folding piece is unfolded, the supporting assembly is in a supporting state, and the locking structure is used for keeping the unfolding state of the folding piece; the folding piece is folded, so that the supporting assembly is rotated into the goods shelf, and the supporting assembly is in a folded state. The friction locking mechanism is arranged on the folding piece, the mechanism design is simplified, the trailer ball can be installed at the rear end of the goods shelf and then connected with a trailer, and the practical function of the seat is increased.

Description

Technical Field

[0001] The utility model relates to the field of seats, in particular to a seat folding mechanism. Background Art

[0002] Electric scooters are a new type of personal travel tool that uses electricity as a driving force and can be used for short-distance travel in the city quickly and conveniently.

[0003] Electric scooters mainly use fixed seats and folding seats. The folding seats have the following advantages:

[0004] The folding seat design can meet the riding needs of different groups of people. The sitting-standing driving mode is suitable for long-term riding and can reduce fatigue. The standing driving mode is more suitable for short-distance riding, allowing users to enjoy a certain amount of exercise and fun. Current electric scooters do not have matching shelf boxes, and cannot conveniently carry shopping bags, backpacks or other items. After the electric scooter is installed with a shelf box, how to ensure the compatibility of the shelf box and the seat in a limited space without affecting the user experience is a technical problem that needs to be solved. In order to solve the above problems, a seat folding mechanism is provided. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model proposes a seat folding mechanism, and the specific technical solution is as follows:

[0006] A seat folding mechanism, characterized in that:

[0007] It includes a supporting assembly, a folding member, a locking structure and a shelf;

[0008] The lower end of the support assembly is hinged on the shelf, one end of the folding member is hinged on the support assembly, and the other end is hinged in the shelf;

[0009] The folding member is unfolded so that the supporting assembly is in a supporting state, and the locking structure is used to maintain the unfolded state of the folding member;

[0010] The folding member is folded so that the supporting assembly is transferred into the shelf, and the supporting assembly is in a folded state.

[0011] In order to better realize the utility model, it can be further:

[0012] The folding member comprises an adjusting shaft, an upper connecting rod and a lower connecting rod;

[0013] The outer end of the upper connecting rod is hinged on the supporting assembly, and the outer end of the lower connecting rod is hinged in the shelf;

[0014] The adjusting shaft is provided with a limiting section;

[0015] A through hole is formed at the inner end of the upper connecting rod, a limiting hole adapted to the limiting section structure is formed at the inner end of the lower connecting rod, and the adjusting shaft passes through the through hole and extends into the limiting hole;

[0016] The limiting section is located in the limiting hole, the limiting hole is used to limit the rotational movement of the adjusting shaft, and the adjusting shaft can slide axially along the limiting hole and the through hole;

[0017] The outer section of the adjustment shaft is a threaded adjustment section, and the locking structure includes a handle assembled on the threaded adjustment section. By tightening the handle, the handle can drive the adjustment shaft to slide axially so that the upper connecting rod and the lower connecting rod contact each other, so that the upper connecting rod and the lower connecting rod are locked by friction.

[0018] Further: the support assembly includes a support column and a seat cushion;

[0019] The seat cushion comprises a seat cushion hinged on the upper end of the support column, a torsion spring is arranged between the seat cushion and the support column, a fixed end of the torsion spring is connected to the support column, and a rotating end of the torsion spring is connected to the seat cushion.

[0020] Further: a guide seat is provided in the shelf, and a guide slider is provided at the bottom of the seat cushion;

[0021] During folding, when the support column rotates into the shelf, the guide slider slides along the guide seat, and the seat cushion opens relative to the support column until the seat cushion is placed flat on the guide seat.

[0022] Furthermore: a towing bracket is connected to the rear end of the shelf.

[0023] Furthermore: a handle is connected to the threaded adjustment section.

[0024] Furthermore: a trailer ball is connected to the trailer bracket.

[0025] The beneficial effects of the utility model are:

[0026] The utility model integrates the shelf and the seat on the shelf. When the driver stands and drives, the seat can be folded and hidden inside the shelf, so that the seat mechanism occupies the minimum three-dimensional space and does not affect the user's operation. When the seat cushion is placed flat on the guide seat, the user's items can still be placed inside the shelf. Regardless of whether the seat is upright or folded, the shelf has the function of loading goods. At the same time, a friction locking mechanism is provided on the folding part to simplify the mechanism design. A trailer ball can be installed at the rear end of the shelf to connect the trailer, thereby increasing the practical function of the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1It is a structural diagram of the upright state;

[0028] Figure 2 It is a schematic diagram of the upright state;

[0029] Figure 3 This is a diagram of the coordination structure between the guide seat and the guide during the folding process;

[0030] Figure 4 It is a structural diagram of the folded state;

[0031] Figure 5 It is a cross-sectional view of the folding rod;

[0032] Figure 6 A schematic cross-sectional view of the folding lever with the handle released;

[0033] Figure 7 A schematic cross-sectional view of the folding lever being tightened for the handle;

[0034] Figure 8 It is a schematic diagram of the connection between the upper connecting rod and the lower connecting rod;

[0035] Fig. 9 It is a schematic diagram of the connection between the lower connecting rod and the adjusting shaft;

[0036] Fig.10 To adjust the axis view;

[0037] The accompanying drawings in the figure are described as follows: support column 1, seat cushion 2, torsion spring 3, adjustment shaft 4, threaded adjustment section 5, first gasket 6, handle 7, locking part 8, upper connecting rod 9, lower connecting rod 10, second gasket 11, shelf 12, guide seat 13, towing bracket 14, trailer ball 15, guide slider 16, and limit section 17. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] In the description of the present utility model, it should be noted that the terms "vertical", "upper", "lower", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present utility model. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] like Figure 1 As shown:

[0041] A seat folding mechanism includes a support assembly, a folding member, a locking structure and a shelf 12;

[0042] The lower end of the support assembly is hinged on the shelf 12, one end of the folding piece is hinged on the support assembly, and the other end is hinged in the shelf 12. The rear end of the shelf is connected to a towing bracket 14, and a trailer ball 15 is connected to the towing bracket 14.

[0043] When the folding member is unfolded, the supporting assembly is in a supporting state, and the locking structure is used to maintain the unfolded state of the folding member;

[0044] After the folding member is folded, the support assembly is transferred into the shelf 12, and the support assembly is in a folded state;

[0045] The folding member comprises an adjustment shaft 4, an upper connecting rod 9 and a lower connecting rod 10;

[0046] The outer end of the upper connecting rod 9 is hinged on the supporting assembly, and the outer end of the lower connecting rod 10 is hinged in the shelf 12;

[0047] The adjusting shaft 4 is provided with a limiting section 17, which adopts a flat square structure;

[0048] The inner end of the upper connecting rod 9 is provided with a through hole, the inner end of the lower connecting rod 10 is provided with a limiting hole adapted to the structure of the limiting section 17, and the adjusting shaft 4 passes through the through hole and extends into the limiting hole;

[0049] The limiting section 17 is located in the limiting hole, and the limiting hole is used to limit the rotational movement of the adjustment shaft 4. The adjustment shaft 4 can slide axially along the limiting hole and the through hole;

[0050] like Figure 5 , Figures 8 to 10 As shown, the outer section of the adjusting shaft 4 is a threaded adjusting section 5, and the locking structure includes a handle 7 assembled on the threaded adjusting section 5, and the handle 7 is threadedly matched with the threaded adjusting section 5. By tightening the handle 7, since the adjusting shaft 4 is restricted from rotating by the limiting hole, the rotation of the handle 7 will be converted into axial sliding of the adjusting shaft 4. The handle 7 can drive the adjusting shaft 4 to slide axially so that the upper connecting rod 9 and the lower connecting rod 10 are in contact, so that the upper connecting rod 9 and the lower connecting rod 10 are locked by friction.

[0051] The upper connecting rod 9 has a first contact portion, and the lower connecting rod 10 has a second contact portion. The first contact portion and the second contact portion are arranged adjacent to each other, and the second contact portion is located between the locking portion 8 and the first contact portion.

[0052] A locking portion 8 is provided on the adjusting shaft 4, and the locking portion 8 is a locking nut tightened on the adjusting shaft 4. The first gasket 6 and the second gasket 11 are both sleeved on the adjusting shaft 4. The gasket 6 is located between the locking portion 8 and the lower connecting rod 10, and the second gasket 11 is located between the upper connecting rod 9 and the handle 7. The adjusting shaft 4 can drive the locking portion 8, and the locking portion 8 squeezes the second gasket 11 to make the first contact portion and the second contact portion contact, thereby realizing friction locking.

[0053] Among them, the support assembly includes a support column 1 and a seat cushion 2, the seat cushion 2 is hinged at the upper end of the support column, a torsion spring 3 is arranged between the seat cushion 2 and the support column 1, the fixed end of the torsion spring 3 is connected to the support column, and the rotating end of the torsion spring 3 is connected to the seat cushion 2.

[0054] A guide seat is provided in the shelf, and a guide slider 16 is provided at the bottom of the seat cushion 2. When folding, when the support column 1 is rotated into the shelf 12, the guide slider 16 slides along the guide seat 13, and the seat cushion 2 opens relative to the support column 1 until the seat cushion 2 is placed flat on the guide seat 13.

[0055] The working process of this utility model is described as follows:

[0056] like Figure 2 As shown, the support column 1 can rotate around point O1, the seat cushion 2 can rotate around point O3, the upper connecting rod 9 can rotate around point O2, the lower connecting rod 10 can rotate around point O5, and the upper connecting rod 9 and the lower connecting rod 10 can rotate relative to each other around point O4.

[0057] like Figure 3 to Figure 4 As shown, when the seat is folded, the support column 1 rotates into the shelf 12, and when the guide slider 16 contacts the guide base, the seat cushion 2 opens relative to the support column 1, and the seat cushion 2 begins to rotate counterclockwise around point O3 until the seat cushion 2 rotates to a horizontal position. At this time, the support column 1 and the seat cushion 2 are completely hidden inside the shelf 12. Conversely, by releasing the handle 7, the seat is pulled back to an upright state.

[0058] like Figure 5 and Figure 6 As shown, when the handle 7 is released, the adjusting shaft 4 can slide axially inward. At this time, gaps will be generated between the A surface and the B surface, the C surface and the D surface, and the E surface and the F surface. The upper connecting rod 9 and the lower connecting rod 10 can rotate relative to each other around the point O4, and the support column 1 can rotate around the point O1 to realize the folding function.

[0059] like Figure 7 When the handle 7 is tightened, the adjusting shaft 4 is pulled outward by the handle 7. At this time, the A surface and the B surface, the C surface and the D surface, and the E surface and the F surface are in a completely tight state. The upper connecting rod 9 and the lower connecting rod 10 cannot rotate relative to each other around the point O4, and the seat cushion 2 will stop at a fixed position.

[0060] Point O2 , point O4 , and point O5 are on the same straight line. At this time, only a very small friction force is required between the upper connecting rod 9 and the lower connecting rod 10 to support a driver on the seat cushion 2 .

[0061] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0062] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A seat folding mechanism, characterized in that: It includes a supporting assembly, a folding member, a locking structure and a shelf; The lower end of the support assembly is hinged on the shelf, one end of the folding member is hinged on the support assembly, and the other end is hinged in the shelf; The folding member is unfolded so that the supporting assembly is in a supporting state, and the locking structure is used to maintain the unfolded state of the folding member; The folding member is folded so that the supporting assembly is transferred into the shelf, and the supporting assembly is in a folded state.

2. A seat folding mechanism according to claim 1, characterized in that: The folding member comprises an adjusting shaft, an upper connecting rod and a lower connecting rod; The outer end of the upper connecting rod is hinged on the supporting assembly, and the outer end of the lower connecting rod is hinged in the shelf; The adjusting shaft is provided with a limiting section; A through hole is formed at the inner end of the upper connecting rod, a limiting hole adapted to the limiting section structure is formed at the inner end of the lower connecting rod, and the adjusting shaft passes through the through hole and extends into the limiting hole; The limiting section is located in the limiting hole, the limiting hole is used to limit the rotational movement of the adjusting shaft, and the adjusting shaft can slide axially along the limiting hole and the through hole; The outer section of the adjustment shaft is a threaded adjustment section, and the locking structure includes a handle assembled on the threaded adjustment section. By tightening the handle, the handle can drive the adjustment shaft to slide axially so that the upper connecting rod and the lower connecting rod contact each other, so that the upper connecting rod and the lower connecting rod are locked by friction.

3. A seat folding mechanism according to claim 2, characterized in that: The support assembly includes a support column and a seat cushion; The seat cushion comprises a seat cushion hinged on the upper end of the support column, a torsion spring is arranged between the seat cushion and the support column, a fixed end of the torsion spring is connected to the support column, and a rotating end of the torsion spring is connected to the seat cushion.

4. A seat folding mechanism according to claim 3, characterized in that: A guide seat is provided in the shelf, and a guide slider is provided at the bottom of the seat cushion; During folding, when the support column rotates into the shelf, the guide slider slides along the guide seat, and the seat cushion opens relative to the support column until the seat cushion is placed flat on the guide seat.

5. A seat folding mechanism according to claim 4, characterized in that: The rear end of the shelf is connected with a towing bracket.

6. A seat folding mechanism according to claim 5, characterized in that: The threaded adjustment section is connected with a handle.

7. A seat folding mechanism according to claim 6, characterized in that: A trailer ball is connected to the trailer bracket.

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