A front-rear linkage hydraulic brake

Abstract

The application belongs to the technical field of hydraulic brake, and discloses a front-rear linkage hydraulic brake, which comprises a one-way hydraulic pipe, a left brake handle, a two-way hydraulic pipe, a brake bin is fixedly connected to the front side of the one-way hydraulic pipe, a water storage bin is fixedly installed at the top of the brake bin, a water injection pipe is fixedly connected to the top of the water storage bin, a sliding pipe is fixedly connected to the bottom of the water storage bin, a moving rack is slidably connected to the inner cavity of the sliding pipe, a mounting frame is fixedly connected to the rear side of the water storage bin, a return spring is fixedly connected to the rear side of the inner cavity of the mounting frame, and a water outlet block is fixedly connected to the left side of the moving rack. Thus, the cooling of the brake disc is achieved, the cooling of the brake disc during long-time braking on a downhill section is realized, the generation of excessive heat between the brake disc and the brake pad is avoided, the braking performance and the use performance of the hydraulic oil are affected, and the service life of the hydraulic oil is further improved.

Description

Technical Field

[0001] This invention belongs to the field of hydraulic brake technology, specifically a front and rear linkage hydraulic brake. Background Technology

[0002] Front and rear linked hydraulic brakes are commonly used in electric vehicles. They use hydraulic pressure to drive the brakes and brake the electric vehicle. Electric vehicle braking methods are generally divided into disc brakes and drum brakes. Disc brakes reduce the rotational speed of the brake disc by contacting the brake pads with the brake disc until it stops. During braking, heat is generated due to the friction between the brake disc and the brake pads. While the heat generated during short-term braking is not enough to affect braking performance, during long downhill driving, the heat accumulated due to prolonged contact between the brake pads and the brake disc not only affects the braking performance between the brake pads and the brake disc but also causes the hydraulic oil to overheat, thus affecting subsequent use. Summary of the Invention

[0003] The purpose of this invention is to provide a front and rear linkage hydraulic brake to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a front-rear linkage hydraulic brake, comprising a one-way hydraulic pipe, a left brake handle, and a two-way hydraulic pipe. A brake chamber is fixedly connected to the front side of the one-way hydraulic pipe. A water storage tank is fixedly installed at the top of the brake chamber. A water injection pipe is fixedly connected to the top of the water storage tank. A sliding pipe is fixedly connected to the bottom of the water storage tank. A moving rack is slidably connected to the inner cavity of the sliding pipe. A mounting bracket is fixedly connected to the rear side of the water storage tank. A return spring is fixedly connected to the rear side of the inner cavity of the mounting bracket. A water outlet block is fixedly connected to the left side of the moving rack. A blocking rod is fixedly connected to the front side of the water outlet block. A water outlet chamber is fixedly connected to the bottom of the water storage tank. A slow-flow water pipe is fixedly connected to the bottom of the water outlet chamber.

[0005] Preferably, hydraulic retractable pipes are fixedly installed on both the left and right sides of the brake chamber. A piston rod is movably sleeved in the inner cavity of the hydraulic retractable pipe. A brake pad is fixedly connected to the side of the piston rod near the center of the brake chamber. A mounting plate is fixedly connected to the front side of the brake pad. A damping ring is fixedly installed in the middle of the mounting plate. A reduction wheel is movably sleeved in the inner cavity of the damping ring. A support rod is fixedly connected to the top of the reduction wheel. A drive gear is fixedly connected to the top of the support rod.

[0006] Preferably, the bottom end of the water storage tank is provided with a water outlet hole, the blocking rod is fixedly installed at the bottom end of the water outlet hole, and the water storage tank is connected to the inner cavity of the water outlet tank and the slow water outlet pipe through the water outlet hole.

[0007] Preferably, a plugging bolt is threaded to the top of the inner cavity of the water injection pipe, and the water storage tank is a rectangular cavity.

[0008] Preferably, the return spring is fixedly connected to the moving rack, the blocking rod is movably sleeved in the inner cavity of the water outlet chamber, and the bottom end of the slow water outlet pipe is located above the center of the brake chamber.

[0009] Preferably, the hydraulic receiving tube communicates with the inner cavity of the brake chamber, the piston rod is fitted with the inner wall of the hydraulic receiving tube, and the brake pad is arc-shaped.

[0010] Preferably, the surface of the reduction wheel is provided with anti-slip rubber, and the reduction wheel is in contact with the inner wall of the damping ring.

[0011] Preferably, the left side of the front half of the sliding tube is closed, and the left side of the rear half of the sliding tube is hollow.

[0012] Preferably, a first locking rod is engaged at the top of the drive gear, the first locking rod being located within the inner cavity of the water storage tank. A pull-out tube is fixedly connected to the top of the water storage tank, and a spring assembly is fixedly connected to the inner cavity of the pull-out tube. The spring assembly consists of a damping telescopic rod and a spring. A conical block is fixedly installed on the side of the spring assembly near the center of the pull-out tube. A pull-out rod is movably sleeved within the inner cavity of the pull-out tube, and a ball screw is fixedly connected to the bottom end of the pull-out rod. A second locking rod is fixedly connected to the bottom end of the ball screw.

[0013] The beneficial effects of this invention are as follows:

[0014] 1. This invention, when braking, involves gripping the left or right brake lever, which, via a one-way or two-way hydraulic pipe, drives the hydraulic oil in the brake chamber to compress the piston rod. The piston rod brakes the brake disc while simultaneously engaging the drive gear and the moving rack. The contact between the reduction wheel and the brake disc causes the reduction wheel to rotate, increasing friction and preventing excessive friction between the brake pads and disc during prolonged braking, thus avoiding brake pad wear. The reduction wheel drives the drive gear, which in turn moves the moving rack. The moving rack moves the water outlet block to the inner cavity of the water chamber, allowing water to flow from the water outlet block into the slow-drip pipe. The water then slowly drips onto the brake disc through the slow-drip pipe, cooling it. This cooling mechanism is particularly effective during prolonged braking on downhill sections, preventing excessive heat buildup between the brake disc and brake pads that could affect braking performance and hydraulic oil performance, thereby extending the lifespan of the hydraulic oil.

[0015] 2. This invention involves pressing down on the pull rod when traversing a muddy downhill section. At this point, the conical block contacts the pull rod, causing it to engage with the groove at the top of the pull rod. A spring assembly applies force to the conical block, thus limiting the pull rod's position. At this time, the second locking rod engages with the first locking rod. When braking, the first locking rod rotates the ball screw, which then meshes with the pressure plate, causing the pressure plate to move downwards within the water reservoir. This increases the water pressure within the reservoir, thereby increasing the amount of water discharged from the slow-flow pipe. This water effectively cleans the mud from the brake disc, preventing excessive mud buildup that could impair braking performance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the mounting disk connection of the present invention;

[0018] Figure 3 This is a schematic diagram of the movable rack connection of the present invention;

[0019] Figure 4 This is a schematic diagram of the support rod connection of the present invention;

[0020] Figure 5 This is a schematic diagram of the hydraulic storage pipe connection of the present invention;

[0021] Figure 6 The structure of this invention Figure 5 Enlarged view of point A in the middle;

[0022] Figure 7 This is a schematic diagram of the connection of the two snap-fit ​​rods in the present invention;

[0023] Figure 8 The structure of this invention Figure 7 Enlarged view of point B in the middle;

[0024] Figure 9 This is a schematic diagram of the connection of the snap-fit ​​rod of the present invention.

[0025] In the diagram: 1. One-way hydraulic pipe; 2. Left brake handle; 3. Two-way hydraulic pipe; 4. Right brake handle; 5. Brake chamber; 6. Water outlet; 7. Water reservoir; 8. Water injection pipe; 9. Plug bolt; 10. Sliding pipe; 11. Moving rack; 12. Mounting bracket; 13. Return spring; 14. Water outlet block; 15. Blocking rod; 16. Water outlet chamber; 17. Slow water outlet pipe; 18. Hydraulic collection pipe; 19. Piston rod; 20. Brake pad; 21. Mounting plate; 22. Damping ring; 23. Reduction wheel; 24. Support rod; 25. Drive gear; 26. Snap-fit ​​rod one; 27. Pull-out pipe; 28. Spring assembly; 29. ​​Conical block; 30. Pull-out rod; 31. Ball screw; 32. Snap-fit ​​rod two; 33. Pressure plate. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figures 1 to 8 As shown, this embodiment of the invention provides a front and rear linkage hydraulic brake, including a one-way hydraulic pipe 1, a left brake handle 2, and a two-way hydraulic pipe 3. A brake chamber 5 is fixedly connected to the front side of the one-way hydraulic pipe 1. A water storage chamber 7 is fixedly installed at the top of the brake chamber 5. A water injection pipe 8 is fixedly connected to the top of the water storage chamber 7. A sliding pipe 10 is fixedly connected to the bottom of the water storage chamber 7. A moving rack 11 is slidably connected to the inner cavity of the sliding pipe 10. A mounting bracket 12 is fixedly connected to the rear side of the water storage chamber 7. A return spring 13 is fixedly connected to the rear side of the inner cavity of the mounting bracket 12. A water outlet block 14 is fixedly connected to the left side of the moving rack 11. A blocking rod 15 is fixedly connected to the front side of the water outlet block 14. A water outlet chamber 16 is fixedly connected to the bottom of the water storage chamber 7. A slow water outlet pipe 17 is fixedly connected to the bottom of the water outlet chamber 16.

[0028] The working principle and beneficial effects of the above technical solution are as follows: While the piston rod 19 brakes the brake disc, it drives the drive gear 25 to mesh with the moving rack 11. Through the contact between the reduction wheel 23 and the brake disc, the reduction wheel 23 rotates, which drives the drive gear 25 to rotate, thereby driving the moving rack 11 to move. When braking for a long time, the moving rack 11 drives the water outlet block 14 to move into the inner cavity of the water outlet chamber 16, so that the water in the inner cavity of the water storage chamber 7 flows out from the water outlet block 14 into the inner cavity of the slow water outlet pipe 17. Then, the water is slowly dripped onto the brake disc through the slow water outlet pipe 17, thereby cooling the brake disc. This achieves the cooling of the brake disc during long-term braking on downhill sections, avoiding the generation of too much heat between the brake disc and the brake pads 20, which affects the braking performance and the performance of the hydraulic oil, further improving the service life of the hydraulic oil. In addition, the water dripped onto the surface of the brake disc through the slow water outlet pipe 17 cleans the dust on the surface of the brake disc.

[0029] like Figure 4 As shown, in one embodiment, hydraulic retractable pipes 18 are fixedly installed on both the left and right sides of the brake chamber 5. A piston rod 19 is movably sleeved in the inner cavity of the hydraulic retractable pipe 18. A brake pad 20 is fixedly connected to the side of the piston rod 19 near the center of the brake chamber 5. A mounting plate 21 is fixedly connected to the front side of the brake pad 20. A damping ring 22 is fixedly installed in the middle of the mounting plate 21. A reduction wheel 23 is movably sleeved in the inner cavity of the damping ring 22. A support rod 24 is fixedly connected to the top of the reduction wheel 23. A drive gear 25 is fixedly connected to the top of the support rod 24.

[0030] The working principle and beneficial effects of the above technical solution are as follows: During braking, hydraulic oil is injected into the inner cavity of the brake chamber 5 through the one-way hydraulic pipe 1 or the two-way hydraulic pipe 3, which causes the piston rod 19 to be squeezed. Then, the brake pads 20 contact the brake disc to brake. At this time, the reduction wheel 23 contacts the brake disc. First, the reduction wheel 23 assists in braking the brake disc. Then, through the damping of the damping ring 22, the speed of the reduction wheel 23 is reduced, which further reduces the speed of the brake disc, thereby effectively avoiding the situation that the braking distance is long when the brake disc speed is high.

[0031] like Figure 5 As shown, in one embodiment, a water outlet 6 is provided at the bottom of the water storage tank 7, and a blocking rod 15 is fixedly installed at the bottom of the water outlet 6. The water storage tank 7 is connected to the inner cavity of the water outlet tank 16 and the slow water outlet pipe 17 through the water outlet 6.

[0032] The working principle and beneficial effects of the above technical solution are as follows: the water outlet 6 opened at the bottom of the water storage tank 7 allows water in the water storage tank 7 to be discharged downward through the water outlet 6 when the water outlet block 14 is located in the inner cavity of the water outlet tank 16.

[0033] like Figure 5As shown, in one embodiment, a plugging bolt 9 is threaded to the top of the inner cavity of the water injection pipe 8, and the water storage tank 7 is a rectangular cavity.

[0034] The working principle and beneficial effects of the above technical solution are as follows: When the water in the water storage tank 7 is used up, the plug bolt 9 connected to the threaded end of the water injection pipe 8 can be unscrewed to replenish the water in the water storage tank 7.

[0035] like Figure 3 As shown, in one embodiment, the reset spring 13 is fixedly connected to the moving rack 11, the blocking rod 15 is movably sleeved in the inner cavity of the water outlet chamber 16, and the bottom end of the slow water outlet pipe 17 is located above the center of the brake chamber 5.

[0036] The working principle and beneficial effects of the above technical solution are as follows: the reset spring 13 is fixedly connected to the moving rack 11. When the braking ends, the drive gear 25 separates from the moving rack 11. At this time, the reset spring 13 pulls the moving rack 11 back to its original position, thereby achieving the reset effect.

[0037] like Figure 4 As shown, in one embodiment, the hydraulic retractor 18 is connected to the inner cavity of the brake chamber 5, the piston rod 19 is attached to the inner wall of the hydraulic retractor 18, and the brake pad 20 is arc-shaped.

[0038] The working principle and beneficial effects of the above technical solution are as follows: the hydraulic receiving pipe 18 is connected to the inner cavity of the brake chamber 5, so that the hydraulic oil in the inner cavity of the brake chamber 5 can be delivered to the inner cavity of the hydraulic receiving pipe 18, thereby squeezing the piston rod 19 in the inner cavity of the hydraulic receiving pipe 18.

[0039] like Figure 5 As shown, in one embodiment, the surface of the reduction wheel 23 is provided with anti-slip rubber, and the reduction wheel 23 is in contact with the inner wall of the damping ring 22;

[0040] The working principle and beneficial effects of the above technical solution are as follows: the anti-slip rubber on the surface of the reduction wheel 23 increases the friction between the reduction wheel 23 and the brake disc. The reduction wheel 23 is in contact with the inner wall of the damping ring 22, thereby applying damping force to the reduction wheel 23 through the damping ring 22. On the one hand, it can reduce the rotation speed of the reduction wheel 23, thereby achieving the effect of auxiliary braking. On the other hand, it can also slow down the rotation speed of the drive gear 25, thereby preventing the moving rack 11 from moving too fast.

[0041] like Figure 2 As shown, in one embodiment, the left side of the front half of the sliding tube 10 is closed, and the left side of the rear half of the sliding tube 10 is open.

[0042] The working principle and beneficial effects of the above technical solution are as follows: the first half of the sliding tube 10 is closed, thereby limiting the moving rack 11 through the sliding tube 10 to prevent the moving rack 11 from shaking during the movement. The left side of the second half of the sliding tube 10 is hollow, so that when the moving rack 11 moves, it can drive the water outlet block 14 and the blocking rod 15 to move into the inner cavity of the water outlet chamber 16.

[0043] like Figure 5 As shown, a locking rod 26 is snapped onto the top of the drive gear 25. The locking rod 26 is located inside the water storage tank 7. A pull tube 27 is fixedly connected to the top of the water storage tank 7. A spring assembly 28 is fixedly connected to the inner cavity of the pull tube 27. The spring assembly 28 consists of a damping telescopic rod and a spring. A conical block 29 is fixedly installed on one side of the spring assembly 28 near the center of the pull tube 27. A pull rod 30 is movably sleeved inside the inner cavity of the pull tube 27. A ball screw 31 is fixedly connected to the bottom end of the pull rod 30. A locking rod 32 is fixedly connected to the bottom end of the ball screw 31.

[0044] The working principle and beneficial effects of the above technical solution are as follows: When driving downhill on a muddy road for an extended period, after prolonged braking, pressing down the pull rod 30 causes the cone block 29 to limit the pull rod 30, simultaneously engaging the locking rod 22 with the locking rod 26. During braking, the drive gear 25 moves towards the center of the brake chamber 5, thereby engaging the drive gear 25 with the locking rod 26. The rotation of the drive gear 25 then drives the locking rod 26 to rotate, which in turn drives the ball screw 31 to rotate. The pressure plate 33, which meshes with the water tank, moves downward, squeezing the water inside the water tank 7 and increasing the water pressure within the tank. This increases the water flow rate, allowing a large amount of water to be sprayed out through the slow-flow pipe 17 to clean the brake disc. After use, pulling the pull rod 30 upward, along with the contact between the pull rod 30 and the conical block 29 and the force applied to the conical block 29 by the spring assembly 28, limits the pull rod 30, preventing it from moving downward. The spring assembly 28, composed of a damping telescopic rod and a spring, positions and guides the conical block 29, preventing it from shifting during use.

[0045] Working principle and usage process: The rear wheel is braked by holding the left brake lever 2, and the front and rear wheels are braked by holding the right brake lever 4. When braking, hydraulic oil is transmitted to the inner cavity of the brake chamber 5 through the one-way hydraulic pipe 1 or the two-way hydraulic pipe 3. At this time, the hydraulic oil squeezes the piston rod 19 in the inner cavity of the hydraulic receiving pipe 18, thereby driving the piston rod 19 to move towards the center of the brake chamber 5, which in turn drives the brake pad 20 to move towards the center of the brake chamber 5, thereby contacting the brake disc and braking the brake disc. At this time, the brake pad 20 drives the reduction wheel 23 to move, so that the reduction wheel 23 also contacts the brake disc. The resistance of the damping ring 22 on the reduction wheel 23 reduces the speed of the reduction wheel 23. The anti-slip rubber on the surface of the reduction wheel 23 provides auxiliary braking to the brake disc.

[0046] During prolonged braking, when the reduction wheel 23 contacts the brake disc, it drives the drive gear 25 to contact and mesh with the moving rack 11. The rotation of the drive gear 25 drives the moving rack 11 to move in the inner cavity of the sliding tube 10. The movement of the moving rack 11 drives the water outlet block 14 and the blocking rod 15 to move towards the water outlet chamber 16. When the water outlet block 14 moves to the inner cavity of the water outlet chamber 16, the water in the inner cavity of the water storage chamber 7 is discharged from the water outlet hole 6 and transported through the water outlet block 14 to the inner cavity of the slow water outlet pipe 17. Then, the water is slowly dripped onto the surface of the brake disc through the slow water outlet pipe 17.

[0047] Pressing the pull rod 30 downwards causes the second locking rod 32 to engage with the first locking rod 26. During braking, the drive gear 25 engages with the first locking rod 26, causing the first locking rod 26 to rotate. The rotation of the first locking rod 26 causes the second locking rod 32 to rotate, which in turn causes the pressure plate 33, which meshes with the ball screw 31, to move downwards along the axis of the ball screw 31. This pressure plate 33 squeezes the water inside the water storage tank 7, increasing the water pressure inside the water storage tank 7 and thus increasing the water flow from the slow water outlet pipe 17. The water flowing out of the slow water outlet pipe 17 then washes the brake disc.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A front-to-rear linkage hydraulic brake, comprising a one-way hydraulic pipe (1), a left brake handle (2), a two-way hydraulic pipe (3), and a right brake handle (4), characterized in that: A brake chamber (5) is fixedly connected to the front side of the one-way hydraulic pipe (1). A water storage tank (7) is fixedly installed at the top of the brake chamber (5). A water injection pipe (8) is fixedly connected to the top of the water storage tank (7). A sliding pipe (10) is fixedly connected to the bottom of the water storage tank (7). A moving rack (11) is slidably connected to the inner cavity of the sliding pipe (10). A mounting bracket (12) is fixedly connected to the rear side of the water storage tank (7). A return spring (13) is fixedly connected to the rear side of the inner cavity of the mounting bracket (12). A water outlet block (14) is fixedly connected to the left side of the moving rack (11). The front side of the water outlet block (14) A stop bar (15) is fixedly connected to the bottom of the water storage tank (7), and a water outlet tank (16) is fixedly connected to the bottom of the water outlet tank (16). A slow water outlet pipe (17) is fixedly connected to the bottom of the water outlet tank (16). Hydraulic storage pipes (18) are fixedly installed on both the left and right sides of the brake chamber (5). A piston rod (19) is movably sleeved in the inner cavity of the hydraulic storage pipe (18). A brake pad (20) is fixedly connected to the side of the piston rod (19) near the center of the brake chamber (5). A mounting plate (21) is fixedly connected to the front side of the brake pad (20). A damping ring (22) is fixedly installed in the middle of the mounting plate (21). The inner cavity of 22) is fitted with a reduction wheel (23), and the top of the reduction wheel (23) is fixedly connected to a support rod (24), and the top of the support rod (24) is fixedly connected to a drive gear (25); the bottom end of the water storage tank (7) is provided with a water outlet (6), and the blocking rod (15) is fixedly installed at the bottom end of the water outlet (6). The water storage tank (7) is connected to the inner cavity of the water outlet tank (16) and the slow water outlet pipe (17) through the water outlet (6); the rear wheel is braked by holding the left brake handle (2), and the front and rear wheels are braked by holding the right brake handle (4). When braking, the brakes are applied through the one-way hydraulic pipe (1) or the two-way hydraulic pipe (25). 3) Hydraulic oil is transmitted to the inner cavity of the brake chamber (5). At this time, the hydraulic oil squeezes the piston rod (19) in the inner cavity of the hydraulic receiving pipe (18), thereby driving the piston rod (19) to move towards the center of the brake chamber (5), and then driving the brake pad (20) to move towards the center of the brake chamber (5), thereby contacting the brake disc and braking the brake disc. At this time, the brake pad (20) drives the reduction wheel (23) to move, so that the reduction wheel (23) also contacts the brake disc. The resistance of the damping ring (22) on the reduction wheel (23) reduces the speed of the reduction wheel (23), thereby assisting the brake disc in braking. During prolonged braking, when the reduction wheel (23) contacts the brake disc, it drives the drive gear (25) to contact and mesh with the moving rack (11). Thus, the rotation of the drive gear (25) drives the moving rack (11) to move in the inner cavity of the sliding tube (10). The movement of the moving rack (11) drives the water outlet block (14) and the blocking rod (15) to move towards the water outlet chamber (16). When the water outlet block (14) moves to the inner cavity of the water outlet chamber (16), the water in the inner cavity of the water storage chamber (7) is discharged from the water outlet hole (6) and transported through the water outlet block (14) to the inner cavity of the slow water outlet pipe (17). Then, the water is slowly dripped onto the surface of the brake disc through the slow water outlet pipe (17).

2. The front and rear linkage hydraulic brake according to claim 1, characterized in that: The top of the inner cavity of the water injection pipe (8) is threaded with a plugging bolt (9), and the water storage tank (7) is a rectangular cavity.

3. A front-to-rear linkage hydraulic brake according to claim 1, characterized in that: The reset spring (13) is fixedly connected to the moving rack (11), the blocking rod (15) is movably sleeved in the inner cavity of the water outlet chamber (16), and the bottom end of the slow water outlet pipe (17) is located above the center of the brake chamber (5).

4. A front-rear linkage hydraulic brake according to claim 1, characterized in that: The hydraulic storage tube (18) is connected to the inner cavity of the brake chamber (5), the piston rod (19) is attached to the inner wall of the hydraulic storage tube (18), and the brake pad (20) is arc-shaped.

5. A front-rear linkage hydraulic brake according to claim 1, characterized in that: The surface of the reduction wheel (23) is provided with anti-slip rubber, and the reduction wheel (23) is in contact with the inner wall of the damping ring (22).

6. A front-rear linkage hydraulic brake according to claim 1, characterized in that: The left side of the front half of the sliding tube (10) is closed, and the left side of the rear half of the sliding tube (10) is hollow.

7. A front-to-rear linkage hydraulic brake according to claim 1, characterized in that: The top of the drive gear (25) is engaged with a first engaging rod (26), which is located in the inner cavity of the water storage tank (7). The top of the water storage tank (7) is fixedly connected to a pull tube (27), and the inner cavity of the pull tube (27) is fixedly connected to a spring assembly (28). The spring assembly (28) consists of a damping telescopic rod and a spring. A conical block (29) is fixedly installed on one side of the spring assembly (28) near the center of the pull tube (27). A pull rod (30) is movably sleeved in the inner cavity of the pull tube (27). A ball screw (31) is fixedly connected to the bottom end of the pull rod (30), and a second engaging rod (32) is fixedly connected to the bottom end of the ball screw (31). The surface of the device is engaged with a pressure plate (33); when the pull rod (30) is pressed down, the second locking rod (32) engages with the first locking rod (26), and when braking, the drive gear (25) engages with the first locking rod (26), thereby driving the first locking rod (26) to rotate. The rotation of the first locking rod (26) drives the second locking rod (32) to rotate, thereby driving the pressure plate (33) engaged with the ball screw (31) to move downward along the axis of the ball screw (31), thereby squeezing the water in the inner cavity of the water storage tank (7) through the pressure plate (33), thereby increasing the water pressure in the inner cavity of the water storage tank (7), thereby increasing the water output of the slow water outlet pipe (17), thereby rinsing the brake disc with the water flowing out through the slow water outlet pipe (17).

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