Brake and shock absorption integrated structure and scooter

Abstract

The utility model belongs to the technical field of scooters, and discloses a brake and shock-proof integrated structure and a scooter, the brake and shock-proof integrated structure comprises two rear cantilevers, a brake assembly, a scooter frame and a shock-proof torsional spring, the two rear cantilevers are arranged at an interval in the left-right direction, two ends of the brake assembly are respectively fixed on the two rear cantilevers, and the shock-proof torsional spring is fixed on the scooter frame. The frame is rotationally connected to the two rear cantilevers through the rear cantilever shaft, the rear cantilever shaft is rotationally sleeved with the shock-proof torsional spring, the shock-proof torsional spring is installed between the frame and the brake assembly, one end of the shock-proof torsional spring abuts against the frame, and the other end of the shock-proof torsional spring abuts against the brake assembly. According to the brake and shock-proof integrated structure, the shock-proof torsional spring and the brake assembly are compact in structure, compatibility of the shock-proof torsional spring and the brake assembly can be improved, the space occupied by the shock-proof torsional spring on a vehicle body is saved, the shock-proof torsional spring is installed between necessary parts of the vehicle body, additional parts do not need to be additionally arranged, and cost is reduced. The use number of parts can be reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of scooters, in particular to a brake and shock-absorbing integrated structure and a scooter. Background Art

[0002] With the diversification of travel modes, electric scooters are favored by more and more people because of their convenience and fun, and people's requirements for the safety and comfort of using electric scooters are also increasing.

[0003] However, existing electric scooters often use hand or foot brakes to brake the rear tire. Most electric scooters lack shock absorbers, and due to the high vibrations of the scooter during use, the tires alone cannot effectively absorb and filter vibrations, affecting the rider's stability and safety.

[0004] Although a small number of scooters on the market have adopted shock-absorbing measures, most of them use rocker-type shock-absorbing structures or hydraulic shock-absorbing structures. However, this type of shock-absorbing structure has poor compatibility with the brake structure. The shock-absorbing structure and the brake structure are independently arranged on the vehicle body, which consumes a large number of parts, increases the space occupied by the vehicle body, and is costly. Utility Model Content

[0005] The purpose of the utility model is to provide a brake and shock-absorbing integrated structure and a scooter, which can improve the compatibility of the shock-absorbing structure and the brake structure, thereby reducing the number of parts and the space occupied by the vehicle body and reducing costs.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] Brake and shock absorber integrated structure, including:

[0008] Two rear cantilevers are arranged at intervals along the left and right directions of the rear wheels and are used for rotationally connecting to the rear wheels;

[0009] A brake assembly, used for braking the rear wheel, wherein the left and right ends of the brake assembly are respectively fixedly connected to the two rear cantilevers;

[0010] A vehicle frame is located in front of the brake assembly, and the vehicle frame is rotatably connected to the two rear cantilevers via a rear cantilever shaft;

[0011] A shock-absorbing torsion spring is rotatably mounted on the rear cantilever shaft. The shock-absorbing torsion spring is installed between the vehicle frame and the brake assembly. One end of the shock-absorbing torsion spring abuts against the vehicle frame, and the other end abuts against the brake assembly.

[0012] Optionally, the brake assembly comprises a brake bracket and a brake unit mounted on the brake bracket, and the brake unit is provided with an upwardly-open avoiding groove at the front end thereof.

[0013] The shock-absorbing torsion spring is a double torsion spring, the spiral part of the double torsion spring is arranged in the avoiding groove, and the brake unit is located between two free ends of the double torsion spring along the left-right direction, and the free ends abut against the brake bracket.

[0014] Optionally, the frame comprises two rear fork tubes arranged at intervals along the left-right direction, and a fixing member connecting the two rear fork tubes.

[0015] The fixing member is provided with a middle hole, the middle torsion arm of the double torsion spring passes through the middle hole and abuts against the front side inner wall of the middle hole forwardly, and is clamped between the opposite inner walls of the middle hole along the left-right direction.

[0016] Optionally, the rear end of the frame is arranged between the two rear cantilever arms along the left-right direction, the two ends of the fixing member extend out of the two rear fork tubes along the left-right direction to form an upper limiting part respectively, each rear fork tube is provided with a lower limiting part on the side opposite to the other rear fork tube, and one end of the rear cantilever arm is limited between the upper limiting part and the lower limiting part along the circumferential direction of the rear cantilever shaft.

[0017] Optionally, the brake unit comprises:

[0018] a fixing bracket fixed to the brake bracket;

[0019] a brake pad rotatably mounted on the fixing bracket, so that the brake pad has a brake position in contact with the rear wheel and a brake release position separated from the rear wheel;

[0020] a brake wire, one end of the brake wire being fixed to one end of the brake pad;

[0021] a resilient reset member for making the brake pad have a tendency to move from the brake position to the brake release position.

[0022] Optionally, the brake pad is rotatably connected to the fixing bracket through a brake pad rotating shaft, the resilient reset member is a reset torsion spring, the reset torsion spring is rotatably sleeved outside the brake pad rotating shaft, one end of the reset torsion spring abuts against the end of the brake pad connected to the brake wire, and the other end abuts against the fixing bracket.

[0023] Alternatively, the resilient reset member is a compression spring, one end of the compression spring is connected to the end of the brake pad away from the brake wire, and the other end is connected to the fixing bracket.

[0024] Optionally, the brake pad comprises a brake pad body, a lower end of the brake pad body is bent forward to form a bent edge; the brake unit further comprises a limiting washer, the limiting washer and the bent edge are connected through a fastening assembly, a rear end of the brake cable is clamped between the brake pad and the limiting washer; any one of the limiting washer and the bent edge has a limiting surface for bending the brake cable.

[0025] Optionally, the fastening assembly comprises a bolt and a nut, a lower end of the bolt is sequentially threaded through the bent edge and the limiting washer and is connected to the nut;

[0026] A bottom of the fixing bracket is formed with an operation space for exposing the nut, the bent edge and the limiting washer are located in the fixing bracket so that the nut can be screwed in the operation space to adjust the brake cable.

[0027] Optionally, an end of the brake pad body away from the brake cable is located behind the fixing bracket, when the brake pad is in a released position, the end of the brake pad body away from the brake cable abuts against the fixing bracket.

[0028] The scooter comprises a rear wheel and a brake and shock absorption integrated structure, the rear wheel is rotatably installed on the rear suspension arm, and the brake assembly is used for braking the rear wheel.

[0029] The utility model discloses beneficial effect:

[0030] The utility model discloses a brake and shock absorption integrated structure and scooter, through the shock absorption torsional spring rotatablely being set in rear suspension arm shaft, one end abuts at the frame, and the other end abuts at the brake assembly, utilize shock absorption torsional spring to be deformed when being subjected to external force and thus the effect of vibration absorption, can reduce the vibration intensity that transmits to the car body, improve the riding experience of user. Through the shock absorption torsional spring being installed between the frame and the brake assembly, utilize frame, brake assembly and rear suspension arm shaft to install shock absorption torsional spring, have improved the compactness of structure between shock absorption torsional spring and brake assembly, need not again separately set up the part for installing shock absorption torsional spring, reduce the use quantity of parts, reduce the production cost of scooter. ACCURACY OF DRAWINGS

[0031] Figure 1 It is the schematic drawing of the brake and shock absorption integrated structure and the scooter provided by the utility model embodiment;

[0032] Figure 2 It is the first shaft side schematic drawing of the brake assembly in the brake and shock absorption integrated structure and the scooter provided by the utility model embodiment;

[0033] Figure 3 It is the explosion drawing of the brake and shock absorption integrated structure and the scooter provided by the utility model embodiment;

[0034] Figure 4 is a sectional view of the brake and shock absorption integrated structure and the scooter provided by the embodiment of the present utility model;

[0035] Figure 5 is a second shaft side schematic view of the brake assembly in the brake and shock absorption integrated structure and the scooter provided by the embodiment of the present utility model.

[0036] In the figure: 1, frame; 11, rear fork pipe; 12, fixing piece; 121, connecting part; 122, reinforcing sheet; 123, middle hole; 124, upper limiting part; 13, limiting bolt; 2, brake support; 3, brake unit; 31, fixed support; 32, brake cable; 33, brake pad; 331, brake pad body; 332, folded edge; 34, reset torsional spring; 35, limiting washer; 351, washer body; 352, steering limiting part; 36, bolt; 37, nut; 38, brake pad rotating shaft; 4, rear cantilever; 5, rear cantilever shaft; 6, shock absorption torsional spring; 7, rear cantilever decoration assembly; 8, rear mudguard assembly; 9, rear wheel assembly. DETAILED DESCRIPTION

[0037] The present utility model will be further described in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, and not to limit the present utility model. In addition, it should be noted that, in order to facilitate the description, only the parts related to the present utility model are shown in the drawings, not all the structures.

[0038] In the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present utility model can be understood according to the specific circumstances.

[0039] In the present utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include the direct contact between the first and second features, or it can include the contact between the first and second features through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0040] In the description of the embodiments, the terms "upper", "lower", "right", "left", and the like, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0041] In the embodiments of the utility model, the front-rear direction refers to the running direction of the scooter, wherein the front side of the scooter is the front side of the scooter, and the rear side of the scooter is the rear side of the scooter.

[0042] As Figures 1-5 The utility model discloses an embodiment provides a brake and shock absorption integrated structure, including two rear suspensions 4, brake assembly, frame 1 and shock absorption torsion spring 6, two rear suspensions 4 are arranged along the left and right direction of rear wheel and are used for rotatingly connecting rear wheel, brake assembly is used for braking rear wheel, and the left and right ends of brake assembly are fixed to two rear suspensions 4 respectively, frame 1 is located at the front side of brake assembly, and frame 1 is rotatably connected to two rear suspensions 4 through rear suspension shaft 5, shock absorption torsion spring 6 is rotatably sleeved on rear suspension shaft 5, shock absorption torsion spring 6 is installed between frame 1 and brake assembly, one end of shock absorption torsion spring 6 abuts against frame 1, and the other end abuts against brake assembly.

[0043] By rotatably sleeving shock absorption torsion spring 6 on rear suspension shaft 5, one end abutting against frame 1 and the other end abutting against brake assembly, in the riding process, the vibration generated by the wheel is transmitted to the rear suspension 4 fixedly connected with the brake assembly, the rear suspension 4 is rotatably connected to the frame 1 through the rear suspension shaft 5, when the vibration is transmitted to the rear suspension 4, the rear suspension 4 rotates relative to the frame 1, so that the shock absorption torsion spring 6 deforms, and the shock absorption torsion spring 6 deforms when subjected to external force, thereby absorbing vibration, which can reduce the vibration intensity of the rear suspension 4 transmitted to the frame 1 and improve the riding experience of the user.

[0044] By installing shock absorption torsion spring 6 between frame 1 and brake assembly, shock absorption torsion spring 6 is installed by frame 1, brake assembly and rear suspension shaft 5, the structural compactness between shock absorption torsion spring 6 and brake assembly is improved, that is, the compatibility of shock absorption torsion spring 6 and brake assembly is better, without the need to separately set parts for installing shock absorption torsion spring 6, the number of parts is reduced, and the production cost of the scooter is reduced.

[0045] As Figure 2As shown in the drawings, the brake assembly comprises a brake bracket 2 and a brake unit 3 mounted on the brake bracket 2, the brake unit 3 is provided with an upward-opening avoiding slot at the front end, the avoiding torsion spring 6 is a double torsion spring, the spiral part of the double torsion spring is arranged in the avoiding slot, the brake unit 3 is located between the two free ends of the double torsion spring along the left-right direction, and the two free ends abut against the brake bracket 2.

[0046] By arranging the double torsion spring in the avoiding slot, the structural compactness between the double torsion spring and the brake unit 3 is improved, and it is not necessary to separately arrange components for mounting the double torsion spring, thereby reducing the number of components and the production cost of the scooter.

[0047] Specifically, as shown in the drawings, Figure 2 The brake bracket 2 comprises a bracket bottom plate and two bracket side plates arranged at intervals along the left-right direction, the two ends of the bracket bottom plate along the left-right direction are connected to the two bracket side plates to form a U-shaped structure of the brake bracket 2, the brake bracket 2 is upward-opening, and the two free ends of the double torsion spring abut against the inner bottom wall of the brake bracket 2.

[0048] The brake unit 3 comprises a fixed bracket 31 mounted on the brake bracket 2. Specifically, the fixed bracket 31 comprises a front plate, two L-shaped side plates, a top plate and a U-shaped bottom plate, the two L-shaped side plates are arranged at intervals along the left-right direction, the two ends of the front plate along the left-right direction are connected to the front ends of the two L-shaped side plates, the two ends of the top plate along the left-right direction are connected to the top ends of the two L-shaped side plates, the front end of the U-shaped bottom plate is connected to the front plate, the two ends of the U-shaped bottom plate along the left-right direction are connected to the two L-shaped side plates, and the opening direction of the U-shaped bottom plate is rearward, and the front plate, the two L-shaped side plates, the top plate and the U-shaped bottom plate form an avoiding slot which is upward-opening and penetrates through along the left-right direction.

[0049] The fixed bracket 31 is located in the brake bracket 2, and the bracket fastener is screwed to the U-shaped bottom plate of the fixed bracket 31 through the bracket bottom plate of the brake bracket 2. In other embodiments, the fixed bracket 31 and the brake bracket 2 are integrally formed.

[0050] Further, as shown in the drawings, Figure 3 , 4 The frame 1 comprises two rear fork tubes 11 arranged at intervals along the left-right direction, and a fixing member 12 connecting the two rear fork tubes 11, the fixing member 12 is provided with a middle hole 123, the middle torsion arm of the avoiding torsion spring 6 passes through the middle hole 123 and abuts against the front inner wall of the middle hole 123 forwardly, and is clamped along the left-right direction between the opposite inner walls abutting against the middle hole 123. The middle hole 123 on the fixing member 12 can limit the axial movement of the avoiding torsion spring 6 along the two spiral parts and the radial movement of the middle torsion arm, so as to prevent the axial movement of the avoiding torsion spring 6 along the two spiral parts and the radial movement of the middle torsion arm when the rear wheel drives the brake bracket 2 to relatively rotate, thereby affecting the vibration absorption effect of the avoiding torsion spring 6.

[0051] Specifically, the fixing member 12 comprises a connecting portion 121 and a reinforcing sheet 122, two ends of the connecting portion 121 are connected to the two rear fork tubes 11, the reinforcing sheet 122 is connected to the connecting portion 121, the reinforcing sheet 122 is located above the connecting portion 121, so that the reinforcing sheet 122 and the connecting portion 121 are arranged at an obtuse angle, and a center hole 123 is arranged on the reinforcing sheet 122. The avoiding groove of the brake unit 3 is located below the reinforcing sheet 122, which facilitates the installation of the shock absorbing torsion spring 6 between the brake unit 3 and the reinforcing sheet 122, and improves the structural compactness between the frame 1 and the brake assembly.

[0052] Further, the rear end of the frame 1 is arranged between the two rear suspension arms 4 along the left-right direction, the two ends of the connecting portion 121 extend out of the two rear fork tubes 11 to form an upper limiting portion 124, and each rear fork tube 11 is provided with a lower limiting portion on the side opposite to the other rear fork tube 11, and one end of the rear suspension arm 4 is limited between the upper limiting portion 124 and the lower limiting portion along the circumferential direction of the rear suspension arm shaft 5.

[0053] During riding, the rear wheel vibration will drive the brake assembly to rotate around the rear suspension arm shaft 5, when the rear suspension arm 4 abuts against the upper limiting portion 124 of the connecting portion 121, the upward rotation angle of the rear suspension arm 4 can be limited, and when the side wall of the rear suspension arm 4 abuts against the lower limiting portion, the downward rotation angle of the rear suspension arm 4 can be limited. By arranging the upper limiting portion 124 and the lower limiting portion, the rotation of the rear suspension arm 4 between the upper limiting portion 124 and the lower limiting portion can be limited, so that the shock absorbing torsion spring 6 can absorb the vibration from the wheel, reduce the vibration transmission to the frame 1, and thus reduce the bad experience of the rider.

[0054] Exemplarily, the lower limiting portion is a limiting bolt 13, the limiting bolt 13 is threadedly connected to the rear fork tube 11, the limiting bolt 13 is located at the front end of the rear suspension arm shaft 5 and below the upper limiting portion 124, the limiting bolt 13 is small in structure and simple in structure, occupies less space of the frame 1, and can reduce the space occupation of the vehicle body.

[0055] In the actual assembly case, the shock absorbing torsion spring 6 is sleeved on the rear cantilever shaft 5, the middle torsion arm of the shock absorbing torsion spring 6 is inserted into the middle hole 123 of the reinforcing plate 122, and the rear cantilever 4 is rotatably connected to the rear end of the vehicle frame 1 through the rear cantilever shaft 5; the brake assembly is fixedly connected to the rear end of the rear cantilever 4. Since the rear cantilever 4 is subjected to the pre-tightening force of the shock absorbing torsion spring 6 and swings downward, when the brake assembly is assembled, the spiral part of the shock absorbing torsion spring 6 is aligned with the avoiding slot, the brake unit 3 is located between the two free ends, a forward and upward rotating force is applied to the rear cantilever 4, the rear cantilever 4 swings forward and upward along the rear cantilever shaft 5, and after the rear cantilever 4 swings to the appropriate position, the limiting bolt 13 is fixed on the two rear fork tubes 11. After the force applied to the rear cantilever 4 is removed, the rear cantilever 4 abuts against the limiting bolt 13 under the action of the shock absorbing torsion spring 6, the limiting bolt 13 serves as a lower limit, and the rear cantilever 4 drives the brake assembly to swing between the upper limiting part 124 and the lower limiting part, thereby greatly reducing the assembly difficulty of the shock absorbing torsion spring 6.

[0056] As shown in Figure 2 , 5 The brake unit 3 includes a brake cable 32, a brake pad 33 and an elastic return member. One end of the brake cable 32 is fixed to one end of the brake pad 33, the brake pad 33 is rotatably installed on the fixed support 31 through a brake pad rotating shaft 38, so that the brake pad 33 has a brake position in contact with the rear wheel and a brake release position separated from the rear wheel. One end of the elastic return member is connected to the brake pad 33, and the other end is connected to the fixed support 31, so as to make the brake pad 33 have a tendency to move from the brake position to the brake release position. By tightening the brake lever, the brake cable 32 is tightened, driving the brake pad 33 to rotate around the brake pad rotating shaft 38. When the brake pad 33 contacts the rear wheel, i.e. is in the brake position, the brake state is completed. When the brake lever is released, the brake cable 32 is loosened, and the brake pad 33 needs to restore the original state under the elastic force of the elastic return member. When the brake pad 33 is separated from the rear wheel, the brake release is completed, and the scooter can normally run.

[0057] Specifically, the brake cable 32 passes through the front plate of the fixed support 31 and is connected to the brake pad 33, for fixing the brake cable 32 and improving the stability of the brake cable 32.

[0058] Further, the elastic return member is a return torsion spring 34, the return torsion spring 34 is sleeved on the brake pad rotating shaft 38 and is rotatably installed on the brake pad 33. One end of the return torsion spring 34 abuts against the brake pad 33 connected to one end of the brake cable 32, and the other end abuts against the inner wall of the fixed support 31. In other embodiments, the elastic return member can also be a compression spring, one end of the compression spring is connected to the brake pad 33 away from the brake cable 32, and the other end is connected to the inner wall of the fixed support 31.

[0059] Exemplarily, the reset torsion spring 34 is a double torsion spring, and the left and right helical parts of the reset torsion spring 34 are respectively located at the left and right ends of the brake pad rotating shaft 38, the middle torsion arm abuts against the lower end of the brake pad 33, and the two free ends abut against the inner wall of the top plate of the fixed support 31. When the brake cable 32 is tightened, the brake pad 33 is pulled to rotate around the brake pad rotating shaft 38, the brake pad 33 presses the middle torsion arm of the reset torsion spring 34, and the reset torsion spring 34 is deformed under the pressing action of the brake pad 33 due to the fact that the two free ends of the reset torsion spring 34 abut against the inner wall of the fixed support 31. When the brake cable 32 is loosened, the reset torsion spring 34 restores to the original state due to the elastic action of the reset torsion spring 34, and the brake pad 33 is pushed to rotate in the opposite direction to the unbraking position.

[0060] Further, the surface of the brake pad 33 at the position of contact with the rear wheel is provided with a wear-resistant layer, which can improve the braking effect of the brake pad 33, prolong the service life of the brake pad 33, and reduce the maintenance cost.

[0061] Further, as shown in Figure 2 , 5 The brake pad 33 includes a brake pad body 331, the lower end of the brake pad body 331 is bent forward to form a bent edge 332, the brake unit 3 further includes a limiting gasket 35, the limiting gasket 35 and the bent edge 332 are connected through a fastening assembly, the rear end of the brake cable 32 is clamped between the brake pad 33 and the limiting gasket 35, and any one of the limiting gasket 35 and the bent edge 332 has a limiting surface for bending the brake cable 32.

[0062] The one end of the brake cable 32 is clamped between the bent edge 332 and the limiting gasket 35 through the fastening assembly, which can ensure the stable connection of the brake cable 32 and the brake pad 33, and prevent the brake cable 32 from loosening and separating when the brake cable 32 is tightened and loosened, thereby ensuring the stability of braking during the riding of the scooter. The brake cable 32 is bent through the limiting surface of any one of the limiting gasket 35 and the bent edge 332, the front and back directions of the brake cable 32 are blocked by the limiting surface, the brake cable 32 is prevented from interfering with the rear wheel due to the elastic action of the brake cable 32 to restore to the original state, and the riding experience of the user is affected.

[0063] Specifically, the limiting gasket 35 includes a gasket body 351, the rear end of the gasket body 351 is bent upward to form a turning limiting part 352; and the rear end of the brake cable 32 abuts against the turning limiting part 352 in the front and back directions to bend the brake cable 32 clamped between the brake pad 33 and the limiting gasket 35. The rear end of the brake cable 32 is bent after abutting against the turning limiting part 352, the front and back directions of the brake cable 32 are blocked by the turning limiting part 352, the brake cable 32 is prevented from interfering with the rear wheel due to the elastic action of the brake cable 32 to restore to the original state, and the riding experience of the user is affected.

[0064] Exemplarily, the brake cable 32 clamped between the brake pad 33 and the limiting washer 35 is in a horizontally arranged L-shaped structure, i.e. the rear end of the brake cable 32 is entirely clamped between the folded edge 332 and the washer body 351. In other embodiments, the brake cable 32 clamped between the brake pad 33 and the limiting washer 35 can also be in a vertically arranged L-shaped structure, i.e. a part of the rear end of the brake cable 32 is clamped between the folded edge 332 and the washer body 351, and the other part is upwardly bent and clamped between the steering limiting portion 352 and the brake pad body 331.

[0065] In other embodiments, the limiting washer 35 can be arranged above the folded edge 332, and specifically, the rear end of the brake cable 32 abuts against the brake pad body 331 in the front-rear direction to make the brake cable 32 clamped between the brake pad 33 and the limiting washer 35 bent. For example, the brake cable 32 clamped between the limiting washer 35 and the brake pad 33 is in a horizontally arranged L-shaped structure, i.e. the rear end of the brake cable 32 is entirely clamped between the folded edge 332 and the washer body 351, and at this time, the steering limiting portion 352 can be cancelled; or the brake cable 32 clamped between the limiting washer 35 and the brake pad 33 is in a vertically arranged L-shaped structure, i.e. a part of the rear end of the brake cable 32 is clamped between the washer body 351 and the folded edge 332, and the other part is upwardly bent and clamped between the steering limiting portion 352 and the brake pad body 331.

[0066] In other embodiments, the end of the brake cable 32 is provided with a mounting head, and the lower end of the brake pad 33 is provided with a mounting groove, and the mounting head is mounted in the mounting groove in an interference fit. Specifically, the mounting groove can be arranged on the upper surface or the lower surface of the brake pad 33.

[0067] Further, the folded edge 332 is above the washer body 351, the fastening assembly is a bolt 36 and a nut 37, the lower end of the bolt 36 is sequentially threaded through the folded edge 332 and the washer body 351 and is threadedly connected to the nut 37, the bottom of the fixed bracket 31 is formed with an operation space for exposing the nut 37, and the folded edge 332 and the limiting washer 35 are located in the fixed bracket 31, so that the nut 37 can be screwed in the operation space to adjust the brake cable 32.

[0068] When the nut 37 is loosened, the length of the bent part of the brake cable 32 in the left-right direction can be adjusted, and after the appropriate length is adjusted, the nut 37 is tightened to clamp the brake cable 32 between the folded edge 332 and the washer body 351, so as to fix the brake cable 32, and the length of the bent part of the brake cable 32 can be adjusted by screwing the nut 37 without disassembling the whole vehicle, so as to adjust the tightness of the brake cable 32.

[0069] Further, the brake pad 33 is provided with a brake cable tension adjusting device on the front side, the brake cable tension adjusting device comprises an adjusting nut and two hollow adjusting bolts, the two hollow adjusting bolts are threadedly connected to the adjusting nut, the two hollow adjusting bolts are opposite in screw direction, the brake cable 32 passes through and is fixed to the two hollow adjusting bolts.

[0070] It should be noted that the brake cable 32 can be roughly adjusted in tightness by the nut 37, and the brake cable tension adjusting device can accurately adjust the tightness of the brake cable 32, so that the adjustment of the brake cable 32 is more accurate and reliable when the two are used together.

[0071] Further, the end of the brake pad body 331 away from the brake cable 32 is located at the rear of the fixed support 31, and when the brake pad 33 is in the unbraking position, the end of the brake pad body away from the brake cable 32 abuts against the fixed support 31. By making the brake pad 33 be between the unbraking position and the braking position, the rotation of the brake pad 33 around the brake pad shaft 38 under the elastic action of the reset elastic member can be limited, that is, the limit position of the brake pad 33 when the brake pad 33 is in the unbraking position is limited, and the use space of the brake pad 33 is reduced.

[0072] Exemplarily, the rear side of the top plate forms a limiting surface, and when the brake pad 33 is in the limit position of the unbraking position, the brake pad body 331 abuts against the limiting surface.

[0073] As shown in Figure 1 The embodiment of the utility model provides a scooter, the scooter includes rear wheel, and brake and shock absorption integrated structure, the rear wheel is rotatably installed to rear cantilever 4, brake assembly is used for braking to rear wheel.

[0074] Further, the scooter further includes rear cantilever decoration assembly 7. The rear cantilever decoration assembly 7 is fixed to the outer side of the rear cantilever 4 by a decoration fastener, and the structure is beautiful.

[0075] Further, the scooter further includes rear fender assembly 8. The rear fender assembly 8 is fixed to the middle of the two rear cantilevers 4 by a fender fastener, and is used for blocking the soil on the wheel from being thrown out.

[0076] Further, the scooter further includes rear wheel assembly 9. The rear wheel assembly 9 is rotatably connected to the rear end of the rear cantilever 4, and the rear wheel assembly 9 rotates to drive the vehicle body to move, so as to realize the normal operation of the scooter.

[0077] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. Brake and suspension integrated structure, characterized in that, The utility model relates to a kind of brake and shock-absorbing integrated structure, including: Two rear suspensions (4) are arranged along the left and right direction of rear wheel, for rotating connection the rear wheel; Brake assembly is used to brake the rear wheel, and the left and right ends of the brake assembly are fixedly connected to two rear suspensions (4) respectively; Frame (1) is located in the front side of brake assembly, and the frame (1) is rotatably connected to two rear suspensions (4) by rear suspension shaft (5); Shock-absorbing torsion spring (6), the shock-absorbing torsion spring (6) is rotatably sleeved on the rear suspension shaft (5), and the shock-absorbing torsion spring (6) is installed between the frame (1) and the brake assembly, one end of the shock-absorbing torsion spring (6) is abutted to the frame (1), and the other end is abutted to the brake assembly.

2. The brake and suspension integrated structure according to claim 1, wherein The brake assembly includes brake support (2), and brake unit (3) installed on the brake support (2), and the front end of the brake unit (3) is provided with a clearance groove with opening upward; The shock-absorbing torsion spring (6) is double torsion spring, and the spiral part of the double torsion spring is arranged in the clearance groove, and the brake unit (3) is located between the two free ends of the double torsion spring along the left and right direction, and the free end is abutted to the brake support (2).

3. The brake and shock-absorbing integrated structure according to claim 2, wherein: The frame (1) includes two rear fork tubes (11) arranged along the left and right direction, and a fixing member (12) connecting the two rear fork tubes (11); The fixing member (12) is provided with a middle hole (123), and the middle torsion arm of the double torsion spring passes through the middle hole (123) and is abutted to the front side inner wall of the middle hole (123) in front, and is clamped between the opposite inner walls of the middle hole (123) along the left and right direction.

4. The brake and suspension integrated structure according to claim 3, wherein The rear end of the frame (1) is arranged between the two rear suspensions (4) along the left and right direction, and the two ends of the fixing member (12) extend out of the two rear fork tubes (11) to form an upper limiting portion (124) respectively, and each rear fork tube (11) is provided with a lower limiting portion on the side opposite to the other rear fork tube (11), and one end of the rear suspension (4) is limited between the upper limiting portion (124) and the lower limiting portion along the circumference of the rear suspension shaft (5).

5. The brake and suspension integrated structure of claim 2, wherein The brake unit (3) includes: A fixed support (31) fixed to the brake support (2); A brake pad (33) rotatably mounted on the fixed support (31) so that the brake pad (33) has a brake position in contact with the rear wheel and a release position separated from the rear wheel; A brake cable (32) with one end fixed to one end of the brake pad (33); An elastic return member for making the brake pad (33) have a tendency to move from the brake position to the release position.

6. The brake and suspension integrated structure according to claim 5, wherein The brake pad (33) is rotatably connected to the fixed support (31) through a brake pad rotating shaft (38), the elastic return member is a return torsion spring (34), the return torsion spring (34) is rotatably sleeved outside the brake pad rotating shaft (38), one end of the return torsion spring (34) abuts against one end of the brake pad (33) connected to the brake cable (32), and the other end abuts against the fixed support (31). Or, the elastic return member is a compression spring, one end of the compression spring is connected to one end of the brake pad (33) away from the brake cable (32), and the other end is connected to the fixed support (31).

7. The brake and suspension integrated structure according to claim 5, wherein The brake pad (33) comprises a brake pad body (331), the lower end of the brake pad body (331) is bent forward to form a bent edge (332); the brake unit (3) further comprises a limiting gasket (35), the limiting gasket (35) and the bent edge (332) are connected through a fastening assembly, the rear end of the brake cable (32) is clamped between the brake pad (33) and the limiting gasket (35); any one of the limiting gasket (35) and the bent edge (332) has a limiting surface for bending the brake cable (32).

8. The brake and suspension integrated structure according to claim 7, wherein The fastening assembly comprises a bolt (36) and a nut (37), the lower end of the bolt (36) is sequentially threaded through the bent edge (332) and the limiting gasket (35) and is connected to the nut (37); The bottom of the fixed support (31) is formed with an operation space for exposing the nut (37), the bent edge (332) and the limiting gasket (35) are located in the fixed support (31), so that the nut (37) can be screwed in the operation space to adjust the brake cable (32).

9. The brake and suspension integrated structure according to claim 7, wherein The end of the brake pad body (331) away from the brake cable (32) is located behind the fixed support (31), when the brake pad (33) is in the unbraking position, the end of the brake pad body (331) away from the brake cable (32) abuts against the fixed support (31).

10. Scooter, characterized in that The brake and shock integrated structure comprises a rear wheel and a rear suspension arm (4), the rear wheel is rotatably installed on the rear suspension arm (4), and the brake assembly is used for braking the rear wheel.

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