Pedal type front and back segmented linkage brake system

Abstract

The invention discloses a pedal type front and rear segmented linkage brake system which comprises a front hydraulic brake, a rear brake and a pedal body. The pedal body is rotationally connected to the frame, and a stage resistance assembly is installed between the pedal body and the frame and used for distinguishing the triggering time of the front hydraulic brake and the triggering time of the rear brake. Generally, the braking mode can achieve the effect of slowing down the running speed without generating large impact, braking is smoother and more comfortable, a driver is reminded of the position where the pedal body reaches through large resistance, pressure is exerted on the pedal body under the emergency situation, and the braking effect is better. And the rear wheel and the front wheel are jointly braked in the rear section range, emergency braking is achieved, and the safety requirement of emergencies can be met.

Description

Technical Field

[0001] The invention belongs to the technical field of brake systems, in particular to a pedal-type front and rear segmented linkage brake system. Background Art

[0002] The braking method of motorcycles has been greatly improved with the development of technology, from the previous method of braking the front and rear wheels separately to the current common method of front and rear wheel linkage, which provides more options for current models, such as the public technical document "CN 110040205 B, a combined motorcycle front and rear wheel combined braking system", which enables the driver to brake the front and rear wheels simultaneously, successively or successively by stepping on the pedal, mainly by changing the driving force value of the first return spring 607 and the brake arm 8 to achieve the above different braking methods, that is, when installed on a motorcycle, only one of them can be selected for braking, but not changed;

[0003] The present application aims to improve the combined braking method of the front wheels first and then the front wheels. According to the above technical solution, although the braking method of the front wheels first and then the front wheels can also be realized, the buffer time between the two is short, and the driver cannot feel it at all in actual operation. Moreover, although the combined braking method can greatly reduce the braking distance, which is helpful for dealing with emergency situations, it will reduce the gliding distance under daily circumstances, and the driver needs to brake frequently during driving. At the moment of braking, the driver will feel a greater impact and feel very uncomfortable. Summary of the invention

[0004] The object of the present invention is to provide a foot-operated front and rear segmented linkage brake system to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A pedal-type front and rear segmented linkage brake system, comprising a front hydraulic brake, a rear brake and a pedal body;

[0007] The pedal body is rotatably connected to the frame, and a stage resistance component is installed between the pedal body and the frame, and the stage resistance component is used to distinguish the triggering timing of the front hydraulic brake and the rear brake;

[0008] The brake end of the front hydraulic brake is installed at the front wheel, the trigger end is connected to the brake handle, and a movable gap for delayed triggering is provided between the brake handle and the trigger end. The brake handle is connected to a connecting member 1 through a cable, and the connecting member 1 is rotatably connected to the pedal body;

[0009] The rear brake is installed at the rear wheel and connected to one end of a connecting rod, and the other end of the connecting rod is rotatably connected to the pedal body.

[0010] According to a further technical solution, the stage resistance assembly comprises an outer cover, the outer cover is fixed on the frame, and a movable groove for accommodating a movable block is provided in the outer cover, and the movable block is fixed on the pedal body;

[0011] The movable block is rotatably connected with a plurality of protruding teeth 1 in the circumferential direction, and is provided with a groove 1 for accommodating the protruding teeth 1, and a torsion spring 1 is provided at the rotation connection, and the torsion spring 1 is used to prevent the protruding teeth 1 from rotating into the groove 1;

[0012] The inner wall of the outer cover is rotatably connected with a plurality of protruding teeth 2 in the circumferential direction, and is provided with a groove 2 for accommodating the protruding teeth 2. A torsion spring 2 is provided at the rotation connection, and the torsion spring 2 is used to reset the protruding teeth 2;

[0013] The convex tooth 1 and the convex tooth 2 are staggered and have a movable distance, and the rotation directions of the two are opposite.

[0014] According to a further technical solution, the distance between the convex tooth 1 and the next convex tooth 2 is equal to the distance of the movable gap between the trigger end of the front hydraulic brake and the brake handle.

[0015] According to a further technical solution, the stage resistance assembly comprises an outer cover, the outer cover is fixed on the frame, and a movable groove for accommodating a movable block is provided in the outer cover, and the movable block is fixed on the pedal body;

[0016] The movable block is rotatably connected with a plurality of protruding teeth 1 in the circumferential direction, and is provided with a groove 1 for accommodating the protruding teeth 1, and a torsion spring 1 is provided at the rotation connection, and the torsion spring 1 is used to prevent the protruding teeth 1 from rotating into the groove 1;

[0017] A plurality of arc-shaped protrusions are arranged at intervals on the inner wall of the outer cover, and the protruding teeth are arranged between adjacent arc-shaped protrusions.

[0018] According to a further technical solution, the distance between the first convex tooth and the rear arc-shaped convex block is equal to the distance of the movable gap between the trigger end of the front hydraulic brake and the brake handle.

[0019] According to a further technical solution, the outer cover is provided with an arc-shaped notch for the pedal body to pass through and for limiting the range of movement of the pedal body.

[0020] A further technical solution is that the pedal body includes a connecting rod, a pedal is fixedly provided at one end of the connecting rod, a connecting shaft is provided at the other end of the connecting rod, the connecting shaft is fixedly connected to the movable block, and passes through the outer cover and is rotatably connected to the frame, a connecting plate 1 is also provided on the connecting shaft, one end of the connecting rod is rotatably connected to the connecting plate 1, a connecting plate 2 is provided on the connecting rod, and the connecting plate 2 is rotatably connected to the connecting piece 1.

[0021] According to a further technical solution, the front hydraulic brake comprises a front brake assembly, the front brake assembly is connected to a hydraulic drive member through an oil pipe, the hydraulic drive member is connected to a piston assembly, and a flange is provided on the outer periphery of the piston assembly;

[0022] A movable cylinder is provided on the outer periphery of the piston assembly, and the movable cylinder can contact the piston assembly with the end of the inner cavity to push the piston assembly to move inward. A flange 2 is provided on the inner wall of the movable cylinder, and the flange 2 can contact with the flange 1 to pull the piston assembly. A linkage block is provided at the end of the outer wall of the movable cylinder, and a bar hole is provided in the linkage block. The linkage end of the brake handle is rotatably connected to the bar hole of the linkage block.

[0023] According to a further technical solution, the brake handle includes a bracket, which is rotatably connected to the handle body and the movable part through the same rotating shaft, and the movable part is provided with a reset torsion spring at the rotation connection, and a resistance block is provided on the movable part for pushing the handle body to reset;

[0024] The linkage end is arranged on the movable part, the movable part is rotatably connected with a second connecting member, and the second connecting member is connected to the cable.

[0025] Beneficial effects of the present invention:

[0026] The present invention distinguishes the braking mode used in daily life from the emergency braking mode through a stage resistance component to achieve the effect of delayed combined braking. The braking mode under normal circumstances can achieve the effect of slowing down the driving speed without generating a large impact, and the braking is smoother and more comfortable. The larger resistance is used to remind the driver of the position reached by the pedal body. In an emergency, pressure is applied to the pedal body to make it enter the rear range to perform combined braking of the rear and front wheels, thereby achieving emergency braking and meeting the safety requirements of emergencies.

[0027] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 : A three-dimensional structural diagram of the present invention.

[0029] Figure 2 : Structural diagram of embodiment 1 of the stage resistance assembly of the present invention.

[0030] Figure 3 : Schematic diagram of the process of the first embodiment of the stage resistance component of the present invention Figure 1 .

[0031] Figure 4 : Schematic diagram of the process of the first embodiment of the stage resistance component of the present invention Figure 2 .

[0032] Figure 5 : Structural diagram of embodiment 2 of the stage resistance assembly of the present invention.

[0033] Figure 6 : Front hydraulic brake diagram of the present invention.

[0034] Figure 7 : Structural diagram of the hydraulic drive component and brake handle of the present invention.

[0035] Figure 8 : Structural diagram of the piston assembly and movable cylinder of the present invention.

[0036] Figure numerals: 11-frame, 12-brake handle, 121-bracket, 122-handle body, 123-movable part, 124-contact block, 125-linkage end, 126-connecting part 2, 2-front hydraulic brake, 21-front brake assembly, 22-oil pipe, 23-hydraulic drive part, 241-piston assembly, 242-flange 1, 243-movable cylinder, 244-flange 2, 245-linkage block, 246-bar hole, 25-cable, 26-connecting Connector 1, 31-rear brake, 32-connecting rod, 4-pedal body, 41-connecting rod, 42-pedal, 43-connecting shaft, 44-connecting plate 1, 45-connecting plate 2, 5-stage resistance assembly, 511-outer cover, 512-movable groove, 513-convex tooth 2, 514-groove 2, 515-torsion spring 2, 516-arc-shaped protrusion, 517-arc-shaped notch, 521-movable block, 522-convex tooth 1, 523-groove 1, 524-torsion spring 1. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0038] Please refer to Figure 1-8 ;

[0039] The brake system of the present invention also adopts a combined brake, but has obvious starting conditions to improve the comfort during driving. It specifically includes a front hydraulic brake 2, a rear brake 31 and a pedal body 4. In this embodiment, the rear brake 31 is generally a drum brake, and braking and releasing are achieved by pulling or loosening the connecting rod 32. Of course, a hydraulic brake method can also be used, and braking and releasing are achieved by squeezing or pulling the piston by the connecting rod 32. Therefore, it is not limited to a specific type here. In addition, the drum brake structure is very mature in the prior art. Since no improvement is made to the structure, the specific structure can refer to the implementation method of the prior art, and will not be described in detail here.

[0040] The pedal body 4 is rotatably connected to the frame 11, and a stage resistance assembly 5 is installed between the pedal body 4 and the frame 11. The braking end of the front hydraulic brake 2 is installed at the front wheel, and the trigger end is connected to the brake handle 12, and a movable gap for delayed triggering is provided between the brake handle 12 and the trigger end. The brake handle 12 is connected to a connecting piece 26 through a cable 25, and the connecting piece 26 is rotatably connected to the pedal body 4. It should be noted that the front hydraulic brake 2 includes a front brake assembly 21, and the front brake assembly 21 is connected to a hydraulic drive component 23 through an oil pipe 22, and the hydraulic drive component 23 is connected to a piston assembly 241, wherein the front brake assembly 21 is the braking end, and the hydraulic drive component 23 and the piston assembly 241 are combined as the trigger end. In addition, a conduit is fixedly provided on the frame 11, and the cable 25 is inserted into the conduit to limit the position; the rear brake 31 is installed at the rear wheel and connected to one end of a connecting rod 32, and the other end of the connecting rod 32 is rotatably connected to the pedal body 4.

[0041] In the process of daily driving, short-term braking often occurs, as long as the speed is reduced, but it is difficult to define the effect of "braking without over-braking". Although "over-braking" can quickly slow down the speed of the vehicle, it will not only cause discomfort to the driver, but also affect the speed increase after braking. According to the technical solution of the prior art "CN110040205 B, a combined front and rear wheel combined braking system for motorcycles", although the braking wheels can be separated, it is entirely controlled by the driver's pedal 42, and basically the front and rear wheels will participate in each braking;

[0042] The stage resistance assembly 5 in this embodiment is used to distinguish the triggering timing of the front hydraulic brake 2 and the rear brake 31. When braking is required during driving, the driver steps on the pedal body 4, and the pedal body 4 rotates and pulls the connecting rod 32 and the cable 25 at the same time. At this time, the rear brake 31 starts to brake the rear wheel. At the same time, the brake handle 12 will also deviate. However, since there is a delayed triggering activity gap between the brake handle 12 and the trigger end, although the brake handle 12 deviates during this process, it will not trigger the front wheel brake, but only deviate toward the trigger end.

[0043] The stage resistance component 5 provides a range of motion for the front and rear sections of the pedal body 4. The above is the front range of motion for the pedal body 4. Controlling the rotation angle of the pedal body 4 within the front range of motion controls the braking strength of the rear brake 31 to meet the need to slow down the driving speed in daily life.

[0044] Normally, within the front range, the rear brake 31 can be triggered by lightly stepping on the pedal body 4. Of course, as the braking effect of the rear brake 31 increases, the resistance encountered by the rotation of the pedal body 4 will gradually increase, which can be directly fed back to the driver, allowing the driver to adjust according to the actual road conditions.

[0045] When the pedal body 4 rotates to a certain angle, it will encounter greater resistance, which comes from the stage resistance component 5, preventing the pedal body 4 from rotating further. These resistances are not insurmountable. It is only necessary to apply a greater force to the pedal body 4 than the force used in the front stage braking to overcome these resistances and enter the rear stage range. These resistances are not only used to remind the driver, but also to avoid triggering the combined braking in non-emergency situations;

[0046] When the pedal body 4 rotates a certain angle and enters the rear range, under the premise of keeping the rear brake 31 triggered, the brake handle 12 will deviate to a larger angle and contact with the trigger end of the front hydraulic brake 2 to achieve braking of the front wheel. When the rear and front wheels are braked, the vehicle can be quickly decelerated to achieve the effect of emergency braking.

[0047] When the force applied to the pedal body 4 disappears, the pedal body 4 can be rotated and reset. The specific reset method can be that the rear brake 31 is reset to pull the connecting rod 32, thereby linking the pedal body 4 to reset it, or a reset spring or torsion spring is provided between the pedal body 4 and the frame 11 bracket 121, so that the pedal body 4 can be reversely rotated and reset. During the reset process, the stage resistance component 5 will also be reset, and will not generate much resistance, so that the reset of the pedal body 4 is not affected.

[0048] In addition, the brake handle 12 can independently control the front hydraulic brake 2 so that the front wheel is braked without being affected by the pedal body 4. Of course, the active gap also needs to be passed when the front hydraulic brake 2 is triggered.

[0049] The present invention distinguishes the braking mode used in daily life from the emergency braking mode through the stage resistance component 5 to achieve the effect of delayed combined braking. The braking mode under normal circumstances can achieve the effect of slowing down the driving speed without causing a large impact, and the braking is smoother and more comfortable. The larger resistance is used to remind the driver of the position reached by the pedal body 4. In an emergency, pressure is applied to the pedal body 4 to make it enter the rear range for combined braking of the rear and front wheels, thereby achieving emergency braking and meeting the safety requirements of emergencies.

[0050] One embodiment of the present invention regarding the stage resistance assembly 5 is shown in FIG. Figure 2-Figure 4, specifically comprising an outer cover 511, the outer cover 511 is fixed on the frame 11, and a movable groove 512 for accommodating a movable block 521 is provided in the outer cover 511, preferably, the outer cover 511 is in a round shape, and the movable groove 512 is round, the movable block 521 is fixed on the pedal body 4, the movable block 521 is rotatably connected to a plurality of convex teeth 522 in the circumferential direction, and a groove 523 for accommodating the convex teeth 522 is provided, and a torsion spring 524 is provided at the rotation connection, a plurality of convex teeth 513 are rotatably connected to the inner wall of the outer cover 511 in the circumferential direction, and a groove 514 for accommodating the convex teeth 513 is provided, and a torsion spring 515 is provided at the rotation connection;

[0051] In the initial state, one of the convex teeth 1 522 is close to the previous convex tooth 2 513 and has a distance from the next convex tooth 2 513. The distance is the movable distance of the front section of the pedal body 4. Usually, pressure is applied to the pedal body 4 to make it rotate. At this time, the convex tooth 1 522 moves from the position of the previous convex tooth 2 513 to the position of the next convex tooth 2 513 until the convex tooth 1 522 conflicts with the next convex tooth 2 513. Since the rotation directions of the convex tooth 1 522 and the convex tooth 2 513 are opposite, after the convex tooth 1 522 conflicts with the next convex tooth 2 513, the convex tooth 2 513 will not rotate, but needs to overcome the torsion of torsion spring 1 524 to make convex tooth 1 522 rotate into groove 1 523. Since convex tooth 1 522 has a plurality of teeth, that is, torsion spring 1 524 also has a plurality of teeth, in this embodiment, the torsion of torsion spring 1 524 is relatively large, and a relatively large resistance to the rotation of movable block 521 is formed in combination. It is necessary to overcome these resistances to make convex block 1 enter groove 1 523, so that movable block 521 can continue to rotate, that is, enter the combined braking mode of the rear section. After crossing convex tooth 2 513, convex tooth 1 522 rotates and resets under the action of torsion spring 1 524;

[0052] After the braking is completed and the pedal body 4 is reset, the movable block 521 will rotate in the opposite direction. At this time, the convex tooth 1 522 will conflict with the rear side of the convex tooth 2 513 that was previously in contact. Since the rotation directions of the convex tooth 1 522 and the convex tooth 2 513 are opposite, the convex tooth 1 522 conflicts with the rear side of the convex tooth 2 513 in this process, but the convex tooth 1 522 will not rotate. Instead, the convex tooth 2 513 will rotate into the groove 2 514 to form a clearance for the convex tooth 1 522 to pass through. The torsion force of the torsion spring 2 515 in this embodiment is relatively small and is only used for the reset of the convex tooth 2 513. Therefore, the convex tooth 2 513 will not produce a large resistance to hinder the movable block 521 from rotating in the opposite direction and resetting. After the convex tooth 1 522 reversely crosses the convex tooth 2 513, the convex tooth 2 513 rotates and resets under the action of the torsion spring 2 515.

[0053] Preferably, the distance between the convex tooth 1 522 and the next convex tooth 2 513 is equal to the distance of the movable gap between the triggering end of the front hydraulic brake 2 and the brake handle 12 , and the front hydraulic brake 2 can be triggered after the convex tooth 1 522 crosses the convex tooth 2 513 .

[0054] Another embodiment of the present invention regarding the stage resistance assembly 5 is shown in FIG. Figure 5 , specifically comprising an outer cover 511, the outer cover 511 is fixed on the frame 11, and a movable groove 512 for accommodating a movable block 521 is provided in the outer cover 511, and the movable block 521 is fixed on the pedal body 4; the movable block 521 is rotatably connected to a plurality of protruding teeth 522 in the circumferential direction, and a groove 523 is provided for accommodating the protruding teeth 522, and a torsion spring 524 is provided at the rotation connection; a plurality of arc-shaped protrusions 516 are provided at intervals on the inner wall of the outer cover 511, and the protruding teeth 522 are placed between adjacent arc-shaped protrusions 516;

[0055] In the initial state, one of the protruding teeth 522 is close to the end of the previous arc-shaped protrusion 516 and has a distance from the next arc-shaped protrusion 516. The distance is the movable distance of the front section of the pedal body 4. Normally, pressure is applied to the pedal body 4 to rotate the movable block 521. At this time, the protruding tooth 522 moves from the position of the previous arc-shaped protrusion 516 to the position of the next arc-shaped protrusion 516 until the protruding tooth 522 contacts the end of the next arc-shaped protrusion 516. Under the action of the torsion springs 524, a large torque is generated to prevent the movable block 521 from rotating. The torsion springs need to be overcome. The torsion force of torsion spring 524 can make convex tooth 1 522 rotate into groove 1 523, and then movable block 521 can rotate. In this embodiment, the torsion force of torsion spring 1 524 is relatively large, which forms a relatively large resistance to the rotation of movable block 521. It is necessary to overcome these resistances to make convex block 1 enter groove 1 523, so that movable block 521 can continue to rotate, that is, enter the combined braking mode of the latter stage. After convex tooth 1 522 continues to rotate with movable block 521 in the storage state, convex tooth 1 522 cannot be reset due to the obstruction of arc-shaped convex block 516, and it will not hinder the continued rotation of movable block 521.

[0056] When the brake is completed and the pedal body 4 is reset, the movable block 521 will rotate in the opposite direction. At this time, the convex tooth 522 slides in the opposite direction along the end surface of the arc-shaped protrusion 516 by accommodating rotation. After the convex tooth 522 is separated from the arc-shaped protrusion 516, it rotates and resets under the action of the torsion spring 524, and is placed between two adjacent arc-shaped protrusions 516.

[0057] Preferably, the distance between the convex tooth 522 and the rear arc-shaped protrusion 516 is equal to the distance of the movable gap between the trigger end of the front hydraulic brake 2 and the brake handle 12. Furthermore, in the initial state, the convex tooth 522 conflicts with the rear end of the front arc-shaped protrusion 516. Since the convex tooth 522 will not rotate in the opposite direction, it will hinder the movable block 521 from continuing to rotate, thereby forming a reset limit for the pedal body 4.

[0058] Based on the above two methods, the outer cover 511 is provided with an arc-shaped notch 517 for the pedal body 4 to pass through and for limiting the range of movement of the pedal body 4 .

[0059] One of the embodiments of the pedal body 4 of the present invention specifically includes a connecting rod 41, a pedal 42 is fixedly provided at one end of the connecting rod 41, a connecting shaft 43 is provided at the other end of the connecting rod 41, the connecting shaft 43 is fixedly connected to the movable block 521, and is rotatably connected to the frame 11. More specifically, the connecting shaft 43 passes through the outer cover 511 and is rotatably connected to the frame 11, a connecting plate 1 44 is further provided on the connecting shaft 43, one end of the connecting rod 32 is rotatably connected to the connecting plate 1 44, a connecting plate 2 45 is provided on the connecting rod 41, and the connecting plate 2 45 is rotatably connected to the connecting member 1 26.

[0060] The present invention is described with reference to the embodiment of the front hydraulic brake 2. Figure 6-Figure 8 , specifically comprising a front brake assembly 21, the front brake assembly 21 is connected to a hydraulic drive member 23 through an oil pipe 22, the hydraulic drive member 23 is connected to a piston assembly 241, wherein hydraulic oil is stored in the hydraulic drive member 23, and the action of the front brake assembly 21 is achieved by pushing the flow of the hydraulic oil through the action of the piston assembly 241, so far the above structure can refer to the implementation method of hydraulic braking in the prior art;

[0061] In this embodiment, a flange 1 242 is provided on the outer periphery of the piston assembly 241, a movable cylinder 243 is sleeved on the outer periphery of the piston assembly 241, a flange 244 is provided in the movable cylinder 243, and an end of the piston assembly 241 and an end of the inner cavity of the movable cylinder 243 have a movable distance, which is the movable gap mentioned in the above embodiment. Within this movable distance, the movable cylinder 243 can move relative to the piston assembly 241, and a linkage block 245 is provided at the outer wall end of the movable cylinder 243, and a bar hole 246 is provided in the linkage block 245, and the linkage end 125 of the brake handle 12 is rotatably connected with the bar hole 246 of the linkage block 245; the bar hole 246 provides a movable space for the rotation of the brake handle 12;

[0062] In the initial state, flange 244 is located at the front end of flange 1 242 and contacts it; when the pedal body 4 is stepped on, the rear brake 31 is actuated to brake the rear wheel, and at the same time, the cable 25 is pulled to deflect the brake handle 12, and the movable cylinder 243 is pushed to move relative to the piston assembly 241. During this process, flange 244 moves away from flange 1 242, and at the same time, the inner cavity end of the movable cylinder 243 approaches the end of the piston assembly 241, but the piston assembly 241 does not move, so the front wheel does not start to brake. This is a delayed combined braking method.

[0063] Further pressure is applied to the pedal body 4, the pedal body 4 rotates at a larger angle and continuously pulls the cable 25, so that the brake handle 12 is offset at a larger angle, and the movable cylinder 243 is continuously pushed to move, so that the inner cavity end of the movable cylinder 243 contacts the end of the piston assembly 241, and the piston assembly 241 is pushed inward during the continuous displacement process, thereby triggering the front wheel brake, achieving the effect of front and rear combined braking;

[0064] When the combined brake needs to be released, the pedal body 4 is released, and the brake handle 12 is rotated and reset to pull out the movable cylinder 243, through which the flange 244 contacts the flange 1 242, and the piston assembly 241 is pulled out while the movable cylinder 243 is pulled out, thereby releasing the front wheel brake and the combined brake.

[0065] It should be noted that the side wall of the movable cylinder 243 should be provided with an air hole, which is connected to its inner cavity for gas exchange to avoid the formation of negative pressure.

[0066] In the present embodiment, the braking handle 12 can be triggered by a pressing method or a traditional rotating method. The pressing method is much simpler, and it only needs to push the movable cylinder 243 to move in a manner similar to a button, and releasing the button will reset it. The rotating method is similar to the handle of the prior art, including a bracket 121, which is mounted at the handshake of the frame 11. The bracket 121 is rotatably connected to the handle body 122 and the movable part 123 through the same rotating shaft. The movable part 123 is provided with a reset torsion spring three at the rotating connection, and a resistance block 124 is provided on the movable part 123 for pushing the handle body 122 to reset. The linkage end 125 is provided on the movable part 123, and the movable part 123 is rotatably connected with a connecting member 2 126, which is connected to the cable 25. The cable 25 pulls the movable part 123 and has nothing to do with the handle body 122. However, when the front wheel brake is used alone, the handle body 122 is offset, and the movable part 123 is pushed to offset at the same time, thereby achieving the purpose of pushing the movable cylinder 243.

[0067] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0068] 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 embodiments that can be understood by those skilled in the art.

Claims

1. A pedal-type front and rear segmented linkage brake system, comprising a front hydraulic brake (2), a rear brake (31) and a pedal body (4), characterized in that: The pedal body (4) is rotatably connected to the frame (11), and a stage resistance assembly (5) is installed between the pedal body (4) and the frame (11), and the stage resistance assembly (5) is used to distinguish the triggering timing of the front hydraulic brake (2) and the rear brake (31); The brake end of the front hydraulic brake (2) is installed at the front wheel, the trigger end is connected to the brake handle (12), and a movable gap for delayed triggering is provided between the brake handle (12) and the trigger end, the brake handle (12) is connected to a connecting piece (26) through a cable (25), and the connecting piece (26) is rotatably connected to the pedal body (4); The rear brake (31) is installed at the rear wheel and connected to one end of a connecting rod (32), and the other end of the connecting rod (32) is rotatably connected to the pedal body (4).

2. A foot-operated front and rear segmented linkage brake system according to claim 1, characterized in that: The stage resistance assembly (5) comprises an outer cover (511), the outer cover (511) is fixedly mounted on the frame (11), and a movable groove (512) for accommodating a movable block (521) is provided in the outer cover (511), and the movable block (521) is fixedly mounted on the pedal body (4); The movable block (521) is rotatably connected to a plurality of protruding teeth (522) in the circumferential direction, and is provided with a groove (523) for accommodating the protruding teeth (522). A torsion spring (524) is provided at the rotation connection, and the torsion spring (524) is used to prevent the protruding teeth (522) from rotating into the groove (523); The inner wall of the outer cover (511) is rotatably connected with a plurality of second protruding teeth (513) in the circumferential direction, and is provided with a second groove (514) for accommodating the second protruding teeth (513). A second torsion spring (515) is provided at the rotation connection, and the second torsion spring (515) is used to reset the second protruding teeth (513); The convex tooth 1 (522) and the convex tooth 2 (513) are staggered and have a movable distance, and the rotation directions of the two are opposite.

3. A foot-operated front and rear segmented linkage brake system according to claim 2, characterized in that: The distance between the first convex tooth (522) and the next convex tooth (513) is equal to the distance of the movable gap between the trigger end of the front hydraulic brake (2) and the brake handle (12).

4. A foot-operated front and rear segmented linkage brake system according to claim 1, characterized in that: The stage resistance assembly (5) comprises an outer cover (511), the outer cover (511) is fixedly mounted on the frame (11), and a movable groove (512) for accommodating a movable block (521) is provided in the outer cover (511), and the movable block (521) is fixedly mounted on the pedal body (4); The movable block (521) is rotatably connected to a plurality of protruding teeth (522) in the circumferential direction, and is provided with a groove (523) for accommodating the protruding teeth (522). A torsion spring (524) is provided at the rotation connection, and the torsion spring (524) is used to prevent the protruding teeth (522) from rotating into the groove (523); A plurality of arc-shaped protrusions (516) are arranged at intervals on the inner wall of the outer cover (511), and the protruding tooth 1 (522) is arranged between adjacent arc-shaped protrusions (516).

5. A foot-operated front and rear segmented linkage brake system according to claim 4, characterized in that: The distance between the first protruding tooth (522) and the rear arc-shaped protruding block (516) is equal to the distance of the movable gap between the trigger end of the front hydraulic brake (2) and the brake handle (12).

6. A foot-operated front and rear segmented linkage brake system according to claim 2 or 4, characterized in that: The outer cover (511) is provided with an arc-shaped notch (517) for the pedal body (4) to pass through and for limiting the range of movement of the pedal body (4).

7. A foot-operated front and rear segmented linkage brake system according to claim 1, characterized in that: The pedal body (4) comprises a connecting rod (41), one end of which is fixedly provided with a pedal (42), the other end of which is provided with a connecting shaft (43), the connecting shaft (43) being fixedly connected to a movable block (521) and penetrating through an outer cover (511) to be rotatably connected to a vehicle frame (11), a connecting plate 1 (44) being further provided on the connecting shaft (43), one end of the connecting rod (32) being rotatably connected to the connecting plate 1 (44), a connecting plate 2 (45) being provided on the connecting rod (41), and the connecting plate 2 (45) being rotatably connected to a connecting member 1 (26).

8. A foot-operated front and rear segmented linkage brake system according to claim 1, characterized in that: The front hydraulic brake (2) comprises a front brake assembly (21), the front brake assembly (21) is connected to a hydraulic drive component (23) via an oil pipe (22), the hydraulic drive component (23) is connected to a piston assembly (241), and a flange (242) is provided on the outer periphery of the piston assembly (241); The piston assembly (241) is provided with a movable cylinder (243) on its outer periphery. The movable cylinder (243) can contact with the piston assembly (241) at the end of the inner cavity to push the piston assembly (241) to move inward. The inner wall of the movable cylinder (243) is provided with a flange 2 (244). The flange 2 (244) can contact with the flange 1 (242) to pull the piston assembly (241). A linkage block (245) is provided at the end of the outer wall of the movable cylinder (243). A bar hole (246) is provided in the linkage block (245). The linkage end (125) of the brake handle (12) is rotatably connected to the bar hole (246) of the linkage block (245).

9. A foot-operated front and rear segmented linkage brake system according to claim 1, characterized in that: The brake handle (12) comprises a bracket (121), the bracket (121) is rotatably connected to the handle body (122) and the movable part (123) respectively through the same rotating shaft, the movable part (123) is provided with a reset torsion spring three at the rotation connection, and a resistance block (124) is provided on the movable part (123) for pushing the handle body (122) to reset; The linkage end (125) is arranged on the movable part (123), and the movable part (123) is rotatably connected to a second connecting member (126), and the second connecting member (126) is connected to the cable (25).

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