Seat folding structure of scooter

Abstract

The utility model discloses a seat folding structure of a scooter, which comprises a frame and a seat, and is characterized in that two sides of the bottom of the seat are respectively mounted on the frame through a connecting mechanism; the connecting mechanism comprises a supporting top seat, a supporting base, a supporting front pipe and a supporting rear pipe; the supporting top seat is installed on the bottom face of the seat, the supporting base is installed on the frame, the supporting rear pipe is arranged on the rear side of the supporting front pipe, and the two ends of the supporting rear pipe and the two ends of the supporting front pipe are rotationally connected with the supporting top seat and the supporting base respectively. A limiting hole is formed in the front supporting pipe or the rear supporting pipe, and a limiting piece matched with the limiting hole is arranged on the top supporting base. The seat has a folding state and a using state, and the relative position of the limiting piece and the limiting hole is used for adjusting the state of the seat. According to the utility model, the occupied space is reduced, and the transportation cost and the subsequent assembly difficulty are reduced.

Description

Technical Field

[0001] The utility model relates to a mobility scooter, in particular to a seat folding structure of the mobility scooter. Background Art

[0002] A mobility scooter is also called a lazy bike. It refers to a means of transportation and auxiliary tools for the purpose of walking. In China, it can sometimes refer to cars, electric bicycles, electric scooters, two-wheeled automatic balancing scooters, and unicycles. Among them, in some specific occasions (scenic spots, factory areas, etc.), or for some groups (elderly people), some low-speed scooters are specially designed. When the user uses it, the user sits on the seat, then holds the handlebars with his hands and presses the control switch on the handlebars to achieve low-speed forward and backward movement of the vehicle.

[0003] Among them, when in use, the seat will be installed on the frame, and there will be a certain height difference between the seat and the bottom of the frame to ensure the comfort of the user. When the scooter leaves the factory, in order to reduce the space occupied and reduce transportation costs, the seat is not installed on the frame first, but is directly placed on the frame, or stacked separately, to reduce the space occupied and reduce transportation costs. When it is transported to the terminal store or the user, the seat and the frame need to be manually installed. The seat itself is heavy and inconvenient to carry, so the labor intensity of assembly will be relatively high. At the same time, the seat has many parts and it is easy to lose parts. At the same time, when the scooter is not in use and is stored, due to the height of the seat, it will also take up a lot of space. How to reduce the space occupied but not affect the subsequent use is the direction that technical personnel in this field need to work hard. Summary of the invention

[0004] The utility model aims to provide a seat folding structure for a mobility scooter, by using the structure, the occupation of transportation space can be reduced, the transportation cost can be reduced, and the difficulty of terminal assembly can also be reduced, preventing the loss of parts during transportation.

[0005] To achieve the above object, the technical solution adopted by the utility model is: a seat folding structure of a mobility scooter, comprising a frame and a seat, wherein both sides of the bottom of the seat are respectively mounted on the frame via connecting mechanisms;

[0006] The connecting mechanism includes a supporting top seat, a supporting base, a supporting front tube and a supporting rear tube;

[0007] The support top seat is installed on the bottom surface of the seat, the support base is installed on the frame, the support rear tube is arranged on the rear side of the support front tube, and the two ends of the support rear tube and the support front tube are rotatably connected to the support top seat and the support base respectively;

[0008] A limiting hole is provided on the support front tube or the support rear tube, and a limiting piece matching with the limiting hole is provided on the support top seat;

[0009] The seat has a folding state and a use state. In the use state, the seat bottom is arranged away from the frame, the limiting member is inserted into the limiting hole, and the limiting member limits the rotation of the supporting front tube;

[0010] When the seat is in a folded state, the limiting member is disengaged from the limiting hole, the limiting member releases the rotation limit on the supporting front tube, and the bottom of the seat is arranged close to the frame.

[0011] In the above technical solution, the top and bottom of the supporting front tube and the supporting rear tube are rotatably connected to the supporting top seat and the supporting base via supporting fixing columns respectively.

[0012] In the above technical solution, the limiting hole is arranged beside the supporting fixing column supporting the top of the front tube, or the limiting hole is arranged beside the supporting fixing column supporting the top of the rear tube.

[0013] In the above technical solution, the limit member includes a limit pin and a reset member, the support top seat is provided with a mounting hole, the outer end of the limit pin is movably inserted into the mounting hole, and the reset member gives the limit pin a thrust or a pull force, so that the outer end of the limit pin passes through the mounting hole and is inserted into the support top seat or inserted into the limit hole;

[0014] And / or, an inward pulling force is applied to the limit pin so that the outer end of the limit pin retracts into the mounting hole.

[0015] In the above technical solution, the stopper also includes a hollow screw sleeve, a through hole is provided in the middle of the screw sleeve, and the outer surface of the screw sleeve is screwed to the mounting hole;

[0016] The limit pin is movably inserted into the through hole, and the reset member is a reset spring, which is sleeved on the outside of the limit pin and arranged in the through hole;

[0017] One end of the return spring abuts against the limit pin, and the other end of the return spring abuts against the inner wall of the through hole.

[0018] In the above technical solution, the through hole includes a first hole and a second hole coaxially arranged, the diameter of the first hole is smaller than the diameter of the second hole, the inner end of the first hole is connected to the inner end surface of the screw sleeve, the outer end of the second hole is connected to the outer end surface of the screw sleeve, and the outer end of the first hole is connected to the inner end of the second hole;

[0019] The stop pin comprises a first pin and a second pin which are coaxially arranged and connected to each other, the outer diameter of the second pin is larger than the outer diameter of the first pin, the second pin is movably inserted into the second hole, and the inner end of the first pin passes through the first hole and is arranged outside the screw sleeve;

[0020] The return spring is sleeved on the outer surface of the first pin, one end of the return spring abuts against the inner end surface of the second pin, and the other end of the return spring abuts against the inner end surface of the second hole.

[0021] In the above technical solution, a connecting ring is rotatably mounted on the inner end of the limit pin, the connecting ring is arranged on the inner side of the screw sleeve, and the outer diameter of the connecting ring is larger than the diameter of the through hole.

[0022] In the above technical solution, a flexible connecting member is further provided, and two ends of the flexible connecting member are respectively connected to the connecting rings on the limiting members on both sides.

[0023] In the above technical solution, the support top seat is a U-shaped structure with an open bottom, and a top U-shaped groove is provided at the bottom of the support top seat, and the tops of the support front tube and the support rear tube are inserted into the top U-shaped groove, and the tops of the support front tube and the support rear tube are rotatably connected to the two sides of the top U-shaped groove through support fixing columns respectively;

[0024] And / or, the support base is a U-shaped structure with an open top, and a bottom U-shaped groove is provided on the top of the support base, and the bottoms of the support front tube and the support rear tube are inserted into the bottom U-shaped groove, and the bottoms of the support front tube and the support rear tube are rotatably connected to both sides of the bottom U-shaped groove via support fixing columns respectively.

[0025] In the above technical solution, the rotation connection between the support front tube and the support top seat is arranged below the front end of the rotation connection between the support rear tube and the support top seat;

[0026] And / or, the rotation connection between the support front tube and the support base is arranged below the front end of the rotation connection between the support rear tube and the support base.

[0027] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0028] 1. The seat of the utility model is installed on the frame through a connecting mechanism, and the supporting top seat and the supporting base in the connecting mechanism are respectively connected to the seat and the frame, and the two ends of the supporting front tube and the supporting rear tube are respectively rotatably connected to the supporting top seat and the supporting base, and a limiting hole is provided on the supporting front tube or the supporting rear tube, and a limiting member that can be inserted into the limiting hole is provided on the supporting top seat. In this way, the rotation of the supporting front tube is limited by the limiting member and the limiting hole in the use state, so that the seat is in the use state, so that the scooter can be used normally. When it is necessary to transport or store the scooter and reduce the space occupied, it is only necessary to pull the limiting member out of the limiting hole to release the rotation limit of the supporting front tube. In this way, the seat can be rotated and stored through the supporting front tube and the supporting rear tube, so that the seat is close to the frame, which is used to reduce the space occupied and reduce the transportation cost. At the same time, the terminal does not need to be assembled, which reduces the assembly difficulty and labor intensity. The terminal does not need to be assembled either, which prevents the loss of parts.

[0029] 2. The limit member in the utility model adopts a combination of a limit pin and a reset member. The reset member gives the limit pin a self-reset structure, so that the limit pin can always be inserted in the limit hole, ensuring the stability and safety of the seat when in use. At the same time, a flexible connector and two limit pins are provided for connection. In this way, only a pulling force needs to be given to the flexible connector to simultaneously drive the two limit pins out of the limit holes, so that the seat can be folded quickly, the folding difficulty is effectively reduced, the convenience of seat folding is improved, and no other work is required. The operation is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model (when the seat is in use);

[0031] Figure 2 This is a schematic diagram of the structure of the first embodiment of the present utility model (when the seat is folded);

[0032] Figure 3 It is a partial structural diagram of the connection between the connection mechanism and the seat in the first embodiment of the utility model (when the seat is in use);

[0033] Figure 4 It is a partial structural diagram of the connection between the connection mechanism and the seat in the first embodiment of the utility model (when the seat is folded);

[0034] Figure 5 It is a partial structural diagram of the connection between the connection mechanism and the frame in the first embodiment of the utility model (when the seat is in use);

[0035] Figure 6 It is a schematic diagram of the partial structure of the top of the connecting mechanism in the first embodiment of the utility model (when the limiting member is inserted into the limiting hole);

[0036] Figure 7 1 is a schematic diagram of the structure of the support top seat in the first embodiment of the utility model (when the outer end of the limit pin is inserted into the support top seat);

[0037] Figure 8 It is a structural schematic diagram of the support top seat in the first embodiment of the utility model (when the limiting member moves inwards and the outer end of the limiting pin retracts into the mounting hole);

[0038] Fig. 9 It is a schematic cross-sectional structural diagram of the limiting member in the first embodiment of the utility model.

[0039] Among them: 1. frame; 2. seat; 3. support top seat; 4. support base; 5. support front tube; 6. support rear tube; 7. limit hole; 8. limit piece; 9. support fixing column; 10. limit pin; 11. mounting hole; 12. flexible connector; 13. top U-shaped groove; 14. bottom U-shaped groove; 15. screw sleeve; 16. reset spring; 17. first hole; 18. second hole; 19. first pin; 20. second pin; 21. connecting ring. DETAILED DESCRIPTION

[0040] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0041] Example 1: See Figures 1 to 9 As shown, a seat folding structure of a mobility scooter comprises a frame 1 and a seat 2, wherein two sides of the bottom of the seat 2 are respectively mounted on the frame 1 via a connecting mechanism;

[0042] The connecting mechanism includes a supporting top seat 3, a supporting base 4, a supporting front tube 5 and a supporting rear tube 6;

[0043] The support top seat 3 is installed on the bottom surface of the seat 2, the support base 4 is installed on the frame 1, the support rear tube 6 is arranged on the rear side of the support front tube 5, and the two ends of the support rear tube 6 and the support front tube 5 are rotatably connected to the support top seat 3 and the support base 4 respectively;

[0044] The support front tube 5 or the support rear tube 6 is provided with a limiting hole 7, and the support top seat 3 is provided with a limiting member 8 that matches the limiting hole 7; in this embodiment, the limiting hole is provided on the support front tube,

[0045] The seat 2 has a folding state and a use state. In the use state, the bottom of the seat 2 is arranged away from the frame 1, and the limiting member 8 is inserted into the limiting hole 7, and the limiting member 8 limits the rotation of the supporting front tube 5;

[0046] When the seat 2 is in the folded state, the limiting member 8 is disengaged from the limiting hole 7 , the limiting member 8 releases the rotation limit on the supporting front tube 5 , and the bottom of the seat 2 is arranged close to the frame 1 .

[0047] In this embodiment, the seat has two states, one is a folding state, and the other is a use state. In this embodiment, a limiting hole is set on the support front tube as an example. In the use state, the support front tube and the support rear tube are in a standing state, and there is a spacing between the support front tube and the support rear tube. The angle between the support front tube, the support rear tube and the frame can be close to 90°. Since the support front tube and the support rear tube are respectively rotatably connected with the support top seat and the support base, in the use state, since the limiting member is inserted into the limiting hole, when the support front tube wants to rotate relative to the support top seat, it will be blocked by the limiting member and the limiting hole, so that the support front tube cannot rotate relative to the support top seat. Since the support front tube cannot rotate relative to the support top seat, a support rear tube is also set on the rear side of the support front tube. The support rear tube is rotatably connected with the support top seat and the support base. The three are connected, so that the support front tube cannot rotate, thereby limiting the seat, so that the seat is in the use state.

[0048] When the seat needs to be converted to a folded state, the limiting members on both sides are pulled out from the limiting holes to release the rotation limit on the supporting front tube, so that the supporting front tube can be rotated relative to the supporting top seat, and the top of the supporting rear tube is also rotationally connected to the supporting top seat, and the supporting rear tube can also be rotated. The user gives the seat a thrust to move the seat downward. In this process, the seat is rotated toward the front and bottom through the limiting of the supporting front tube and the supporting rear tube, so that the bottom of the seat is set close to the top surface of the frame. When the front side surface of the supporting front tube is against the frame, the seat is in a folded state and is stored, which can effectively reduce space occupancy and reduce transportation costs. When the seat needs to be converted from a folded state to a use state, an upward pulling force is applied to the seat. Due to the connection between the support front tube and the support rear tube, the support front tube and the support rear tube can also support the seat. When the seat moves upward, it will rotate toward the upper and rear around the support base through the support front tube and the support rear tube. When the limiting hole is facing the limiting piece, the limiting piece is inserted into the limiting hole to achieve the rotation limit of the support front tube and the support rear tube. At this time, the seat is converted to the use state. In this way, the seat does not need to be assembled with the frame, and there will be no loss of parts, which reduces the difficulty of assembly. The seat is in a storable state, which is convenient and fast, and easy to store and use.

[0049] See also Figure 1 , 3 As shown in , 5, the rotation connection between the support front tube 5 and the support top seat 3 is arranged below the front end of the rotation connection between the support rear tube 6 and the support top seat 3;

[0050] The rotation connection between the support front tube 5 and the support base 4 is arranged below the front end of the rotation connection between the support rear tube 6 and the support base 4 .

[0051] When the seat is in use, there is a certain inclination angle between the front support tube and the rear support tube and the top surface of the frame in front of them, and the angle is slightly less than 90°. In this way, when the seat needs to be folded, there is a certain height difference between the top and bottom rotational connections of the front support tube and the rear support tube, which is convenient for folding the seat and for the top of the front support tube and the rear support tube to rotate forward. At the same time, there is a height difference between the rotational connections between the two, and after folding, there will be no interference between the front support tube and the rear support tube, ensuring the stability and quality of the seat in the folded state.

[0052] See also Figures 1 to 7 As shown, the top and bottom of the supporting front tube 5 and the supporting rear tube 6 are rotatably connected to the supporting top seat 3 and the supporting base 4 via supporting fixing columns 9 respectively.

[0053] Among them, the supporting and fixing column supporting the top of the front tube is arranged below the front side of the supporting and fixing column supporting the top of the rear tube, and the supporting and fixing column supporting the bottom of the front tube is also arranged below the front side of the supporting and fixing column supporting the bottom of the rear tube.

[0054] Among them, the limiting hole is arranged on the side of the supporting fixing column supporting the top of the front tube, or the limiting hole is arranged on the side of the supporting fixing column supporting the top of the rear tube. In this embodiment, the limiting hole will be arranged above the supporting fixing column supporting the top of the front tube.

[0055] In the utility model, the limiting hole can be set on the supporting front tube or the supporting rear tube, and can be set beside the supporting fixing column on the top of the supporting front tube or the supporting rear tube. Two-point positioning can be performed, so that the limiting can be performed through the limiting piece and the limiting hole.

[0056] See also Figure 3 , 4 , 6 to 8, the limiting member 8 includes a limiting pin 10 and a reset member (the reset member is not shown in the figure), the support top seat 3 is provided with a mounting hole 11, the outer end of the limiting pin 10 is movably inserted into the mounting hole 11, and the reset member gives the limiting pin 10 a thrust or a pull force, so that the outer end of the limiting pin passes through the mounting hole and is inserted into the support top seat 3 (in the top U-shaped groove of the support top seat) or inserted into the limiting hole 7;

[0057] An inward pulling force is applied to the limiting pin 10 so that the outer end of the limiting pin 10 retracts into the mounting hole 11 .

[0058] In this embodiment, when no external force is applied to the limit pin, the reset member will give the limit pin an outward push or an outward pull, driving the limit member to move outward, so that the outer end of the limit pin passes through the mounting hole and is inserted into the limit hole (when the seat is in use). When the seat is folded, the limit member is first pulled out of the limit hole, and the limit pin releases the limit on the limit hole, and the seat can be folded. When the support front tube rotates relative to the support top seat, other positions of the support front tube will face the mounting hole, blocking the limit pin, so that the limit pin cannot move outward. When the seat needs to be rotated from the folded state to the use state, since the side wall of the support front tube abuts the limit pin, it is only necessary to unfold the seat, and since the limit pin is always pushed outward by the elastic member, when the limit hole is facing the limit pin, the resistance of the support front tube to limit the limit pin to move outward disappears, and the limit pin will be driven by the reset member to reset itself and be inserted into the limit hole, thereby realizing automatic limit after the seat is unfolded.

[0059] See also Figure 3 , 4 As shown in , 6 to 8, a flexible connector 12 is also provided, and the two ends of the flexible connector 12 are respectively connected to the inner ends of the limit pins 10 in the limit members 8 on both sides. When a pulling force is applied to the flexible connector, the end of the flexible connector applies a pulling force corresponding to the inner end of the limit pin inward, pulling the outer end of the limit pin back into the mounting hole. The flexible connector is a binding strap.

[0060] A flexible connecting piece, namely a strap, is used. When the seat needs to be switched from the use state to the folded state, the operator directly grasps the middle part of the strap and pulls it forward. This will simultaneously apply pulling force to the limit pins on both sides, pulling the limit pins on both sides to move inward, thereby causing both limit pins to disengage from the corresponding limit holes. This releases the rotation limit on the supporting front tube and the supporting rear tube, and the seat can be switched from the use state to the folded state.

[0061] See also Figures 6 to 9 As shown, the stopper also includes a hollow screw sleeve 15, a through hole is provided in the middle of the screw sleeve 15, and the outer surface of the screw sleeve 15 is screwed and connected to the mounting hole 11;

[0062] The limit pin 10 is movably inserted into the through hole, and the reset member is a reset spring 16, which is sleeved on the outside of the limit pin 10 and is arranged in the through hole;

[0063] One end of the return spring 16 abuts against the limiting pin 10 , and the other end of the return spring 16 abuts against the inner wall of the through hole.

[0064] In this embodiment, the mounting hole is a screw hole, the outer surface of the screw sleeve has an external thread, and the limit pin and the spring are directly arranged in the screw sleeve, so that when the limit piece needs to be installed, it can be directly screwed through the screw sleeve and the mounting hole to achieve the rapid installation of the limit piece and the support top seat, and it can also be directly and quickly disassembled during maintenance and disassembly, which is convenient and fast. Among them, the limit pin is directly inside the screw sleeve, and a reset spring is used to give the limit pin an outward thrust, so that the limit pin always has a restoring force to move outward. When the limit pin is facing the limit hole, the outer end of the limit pin will automatically insert into the limit hole to achieve limiting. At the same time, the screw sleeve is used, which is also convenient for adjusting the relative position between the screw sleeve and the support front pipe.

[0065] See also Fig. 9 As shown, the through hole includes a first hole 17 and a second hole 18 which are coaxially arranged, the diameter of the first hole 17 is smaller than the diameter of the second hole 18, the inner end of the first hole 17 is connected to the inner end surface of the screw sleeve 15, the outer end of the second hole 18 is connected to the outer end surface of the screw sleeve 15, and the outer end of the first hole 17 is connected to the inner end of the second hole 18;

[0066] The stop pin 10 includes a first pin 19 and a second pin 20 which are coaxially arranged and connected to each other. The first pin is arranged at the inner end of the second pin, and the two are an integral structure. The outer diameter of the second pin 20 is larger than the outer diameter of the first pin 19. The second pin 20 is movably inserted into the second hole 18. The inner end of the first pin 19 passes through the first hole 17 and is arranged outside the screw sleeve 15.

[0067] The return spring 16 is sleeved on the outer surface of the first pin 19 , one end of the return spring 16 abuts against the inner end surface of the second pin 20 , and the other end of the return spring 16 abuts against the inner end surface of the second hole 18 .

[0068] Among them, the reset spring will give the limit pin an outward thrust, and when the limit pin is not limited, the outer end of the second pin will pass through the second hole and leak out of the screw sleeve, that is, when the seat is in the unfolded limit state, the second pin will be inserted into the limit hole. When the seat needs to be folded, the limit pin is given an inward pulling force to pull the first pin and the second pin inward. During this process, the second pin moves inward and approaches the first hole, which will compress the reset spring until the second pin is completely retracted into the second hole, and then the second pin will be separated from the limit hole, so that the seat can be folded. When the seat is unfolded, the reset spring will continue to give the limit pin an outward thrust, so that the outer end of the second pin will be against the side wall of the support front tube. When the limit hole is facing the second pin, the reset spring will push the second pin outward, so that the second pin is inserted into the limit hole, thereby achieving the limit of the support front tube.

[0069] See also Figures 6 to 9 As shown, a connecting ring 21 is rotatably mounted on the inner end of the limit pin 10. The connecting ring 21 is arranged on the inner side of the screw sleeve 15. The outer diameter of the connecting ring 21 is larger than the diameter of the through hole. The outer diameter of the connecting ring is at least larger than the diameter of the first hole.

[0070] In this embodiment, the connection ring can limit the freedom of the limit pin to move outward, and the connection ring can also give the limit pin a pulling force to move inward, so that the limit pin can be separated from the limit hole. In addition, the second pin, the second hole and the return spring can limit the limit pin from moving inward and disengaging from the screw sleeve, and the connection ring can also limit the limit pin from moving inward and disengaging from the screw sleeve. In addition, the connection ring is also convenient for connecting the end of the flexible connector and the two limit pins.

[0071] See also Figures 3 to 8 As shown, the support top seat 3 is a U-shaped structure with an open bottom, and a top U-shaped groove 13 is provided at the bottom of the support top seat 3, and the tops of the support front tube 5 and the support rear tube 6 are inserted into the top U-shaped groove 13, and the tops of the support front tube 5 and the support rear tube 6 are rotatably connected to both sides of the top U-shaped groove 13 through support fixing columns 9 respectively;

[0072] The support base 4 is a U-shaped structure with an open top, and a bottom U-shaped groove 14 is provided on the top of the support base 4. The bottoms of the support front tube 5 and the support rear tube 6 are inserted into the bottom U-shaped groove 14, and the bottoms of the support front tube 5 and the support rear tube 6 are rotatably connected to the two sides of the bottom U-shaped groove 14 through support fixing columns 9 respectively.

[0073] The support top seat and the support base are both U-shaped structures, so that the ends of the support front tube and the support rear tube are inserted into the corresponding U-shaped grooves, and can be connected by rotating the support fixing column and the two sides of the U-shaped groove. The two side walls of the U-shaped groove are used to support the support fixing column, which has better support stability and can also prevent the support fixing column from deformation, thereby extending its service life, ensuring strength, and ensuring the stability and safety of the use of the mobility scooter.

[0074] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0075] In the present utility model, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, or an integral one; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, for example, the two can form a mechanical abutment or abutment connection through abutment, contact, etc., the two can also be directly hung or hung through an intermediate medium, etc., or it can be the internal connection of the two elements or the interaction relationship between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A seat folding structure for a mobility scooter, comprising a frame and a seat, characterized in that: Both sides of the bottom of the seat are respectively mounted on the frame via connecting mechanisms; The connecting mechanism includes a supporting top seat, a supporting base, a supporting front tube and a supporting rear tube; The support top seat is installed on the bottom surface of the seat, the support base is installed on the frame, the support rear tube is arranged on the rear side of the support front tube, and the two ends of the support rear tube and the support front tube are rotatably connected to the support top seat and the support base respectively; A limiting hole is provided on the support front tube or the support rear tube, and a limiting piece matching with the limiting hole is provided on the support top seat; The seat has a folding state and a use state. In the use state, the seat bottom is arranged away from the frame, the limiting member is inserted into the limiting hole, and the limiting member limits the rotation of the supporting front tube; When the seat is in a folded state, the limiting member is disengaged from the limiting hole, the limiting member releases the rotation limit on the supporting front tube, and the bottom of the seat is arranged close to the frame.

2. The seat folding structure of the mobility scooter according to claim 1, characterized in that: The top and bottom of the supporting front tube and the supporting rear tube are rotatably connected to the supporting top seat and the supporting base via supporting fixing columns respectively.

3. The seat folding structure of the mobility scooter according to claim 2, characterized in that: The limiting hole is arranged beside the supporting fixing column supporting the top of the front tube, or the limiting hole is arranged beside the supporting fixing column supporting the top of the rear tube.

4. The seat folding structure of the mobility scooter according to claim 1, characterized in that: The limiting member includes a limiting pin and a reset member, the support top seat is provided with a mounting hole, the outer end of the limiting pin is movably inserted into the mounting hole, and the reset member gives the limiting pin a thrust or a pull force, so that the outer end of the limiting pin passes through the mounting hole and is inserted into the support top seat or the limiting hole; And / or, an inward pulling force is applied to the limit pin so that the outer end of the limit pin retracts into the mounting hole.

5. The seat folding structure of the mobility scooter according to claim 4, characterized in that: The stopper also includes a hollow screw sleeve, a through hole is provided in the middle of the screw sleeve, and the outer surface of the screw sleeve is screwed to the mounting hole; The limit pin is movably inserted into the through hole, and the reset member is a reset spring, which is sleeved on the outside of the limit pin and arranged in the through hole; One end of the return spring abuts against the limit pin, and the other end of the return spring abuts against the inner wall of the through hole.

6. The seat folding structure of the mobility scooter according to claim 5, characterized in that: The through hole comprises a first hole and a second hole which are coaxially arranged, the diameter of the first hole is smaller than the diameter of the second hole, the inner end of the first hole is connected to the inner end surface of the screw sleeve, the outer end of the second hole is connected to the outer end surface of the screw sleeve, and the outer end of the first hole is connected to the inner end of the second hole; The stop pin comprises a first pin and a second pin which are coaxially arranged and connected to each other, the outer diameter of the second pin is larger than the outer diameter of the first pin, the second pin is movably inserted into the second hole, and the inner end of the first pin passes through the first hole and is arranged outside the screw sleeve; The return spring is sleeved on the outer surface of the first pin, one end of the return spring abuts against the inner end surface of the second pin, and the other end of the return spring abuts against the inner end surface of the second hole.

7. The seat folding structure of the mobility scooter according to claim 5, characterized in that: A connecting ring is rotatably mounted on the inner end of the limiting pin. The connecting ring is arranged on the inner side of the screw sleeve. The outer diameter of the connecting ring is greater than the diameter of the through hole.

8. The seat folding structure of the mobility scooter according to claim 4, characterized in that: A flexible connecting piece is also provided, and the two ends of the flexible connecting piece are respectively connected to the inner ends of the limiting pieces on both sides.

9. The seat folding structure of the mobility scooter according to claim 1, characterized in that: The support top seat is a U-shaped structure with an open bottom, and a top U-shaped groove is provided at the bottom of the support top seat, and the tops of the support front tube and the support rear tube are inserted into the top U-shaped groove, and the tops of the support front tube and the support rear tube are rotatably connected to the two sides of the top U-shaped groove via support fixing columns respectively; And / or, the support base is a U-shaped structure with an open top, and a bottom U-shaped groove is provided on the top of the support base, and the bottoms of the support front tube and the support rear tube are inserted into the bottom U-shaped groove, and the bottoms of the support front tube and the support rear tube are rotatably connected to both sides of the bottom U-shaped groove via support fixing columns respectively.

10. The seat folding structure of the mobility scooter according to claim 1 or 9, characterized in that: The rotation connection between the support front tube and the support top seat is arranged below the front end of the rotation connection between the support rear tube and the support top seat; And / or, the rotation connection between the support front tube and the support base is arranged below the front end of the rotation connection between the support rear tube and the support base.

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