Booster oil pump and brake device thereof

Abstract

The invention discloses a booster oil pump and a brake device thereof, and relates to the field of bicycle accessories, the booster oil pump comprises a supporting frame, a brake handle is rotationally connected to the supporting frame, a fixing ring is installed on the supporting frame, an oil conveying pipe is arranged on one side of the supporting frame, and a multi-stage booster oil pump mechanism is arranged between the brake handle and the oil conveying pipe; and an adjusting valve mechanism is arranged between the brake handle and the oil conveying pipe. The brake handle rotates on the supporting frame, the brake handle drives the multi-stage booster oil pump mechanism to start conveying brake oil into the oil conveying pipe, and after the brake handle moves to a half stroke on the supporting frame, the multi-stage booster oil pump mechanism drives the adjusting valve mechanism to enable the brake oil in the multi-stage booster oil pump mechanism to be conveyed into the oil conveying pipe in a double mode. Therefore, during braking, braking can be gentle, daily use can be met, meanwhile, the oil pressure in the oil conveying pipe can be instantly increased when needed, the braking effect is better, and braking is more sensitive.

Description

Technical Field

[0001] The present application relates to the field of bicycle accessories, and in particular to a booster oil pump and a brake device thereof. Background Art

[0002] The bicycle brake system is a key component of the bicycle's safety performance. Its main function is to slow down or stop the bicycle through friction. Disc brakes are divided into two types: cable-pull type and hydraulic type. Cable-pull disc brakes use the tension of the brake cable to make the brake pads in the caliper rub and clamp the disc, producing a braking effect. Hydraulic disc brakes use oil as the medium. The force applied to the brake handle activates the piston inside to compress the oil. The pressure goes directly through the oil pipe to the caliper, thereby pushing the piston in the caliper and driving the brake pads to clamp the disc. The advantages of disc brakes are strong braking force and good stability, but maintenance is relatively complex and the cost is also high.

[0003] The structure of a hydraulic disc brake consists of a brake handle, master cylinder, hydraulic oil, oil pipe, caliper, piston, brake pads and disc. When the rider squeezes the brake handle, the piston in the handle is pushed. The movement of the piston compresses the hydraulic oil in the master cylinder. The oil pipe transmits the pressure generated by the master cylinder to the caliper. The piston in the caliper moves outward under the pressure of the hydraulic oil, pushing the brake pads. The brake pads are pushed by the piston, contact the rotating disc and generate friction. This friction slows down or stops the wheel.

[0004] During the braking process, when encountering a slope, since the pressure of the brake-driven piston remains stable, when braking on a slope, the impact force is large, and the pressure of the hydraulic oil pushed by a single brake piston may not be enough to drive the pressure of the brake pad against the disc, resulting in insensitive or slow braking. Summary of the Invention

[0005] The purpose of the present application is to solve the problem raised in the above background technology that the pressure of the brake-driven piston is stable and unchanged, and when braking on a slope, the impact force is large, and the pressure of the hydraulic oil pushed by a single brake piston to drive the brake pad to contact the disc may be insufficient, resulting in insensitive or slow braking. The present application provides a booster oil pump and its brake device.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions: A booster oil pump and its brake device include a support frame, a brake handle is rotatably connected to the support frame, a fixing ring is installed on the support frame, an oil pipeline is provided on one side of the support frame, a multi-stage booster oil pump mechanism is provided between the brake handle and the oil pipeline, and a regulating valve mechanism is provided between the brake handle and the oil pipeline.

[0007] By adopting the above technical solution, the brake handle is squeezed to rotate the brake handle on the support frame, and the brake handle drives the multi-stage booster oil pump mechanism to start delivering brake oil to the oil pipe, allowing the brake oil to enter the oil brake device on the wheel from the multi-stage booster oil pump mechanism. After the brake handle moves to half the stroke on the support frame, the multi-stage booster oil pump mechanism drives the regulating valve mechanism, and the regulating valve mechanism opens, allowing the brake oil in the multi-stage booster oil pump mechanism to double the amount of brake oil delivered to the oil pipe, thereby further increasing the pressure in the oil brake device on the wheel. Therefore, when braking, the brake can be smooth to meet daily use. At the same time, when needed, the oil pressure in the oil pipe can be instantly increased, resulting in better braking effect and more sensitive braking.

[0008] Furthermore, the multi-stage booster oil pump mechanism includes an oil pump block fixed on a support frame, an oil pump cabin 1 is provided on the oil pump block, an oil pump cabin 2 is provided on the oil pump block, the oil pump cabin 1 and the oil pump cabin 2 are open toward one end of the support frame, a connecting hole is provided between the oil pump cabin 1 and the oil pump cabin 2, a booster piston 1 slidingly connected to the oil pump block is provided in the oil pump cabin 1, a booster piston 2 slidingly connected to the oil pump block is provided in the oil pump cabin 2, a return spring is provided between the booster piston 1, the booster piston 2 and the oil pump block, one end of the return spring is fixedly connected to the oil pump block, and the other end is fixedly connected to the corresponding booster piston 1 and booster piston 2, and a driving assembly is provided between the booster piston 2, the booster piston 1 and the brake handle.

[0009] By adopting the above technical solution, the brake handle drives the driving assembly, and the driving assembly first drives the booster piston 1 to move in the oil pump compartment 1, and the booster piston 1 pushes the brake oil into the oil pipe for braking. After squeezing the brake handle to move the driving assembly to the boost range, the driving assembly drives the regulating valve mechanism to move away from the connecting hole, and then the driving assembly pushes the booster piston 2, so that the booster piston 2 pushes the brake oil in the oil pump compartment 2 through the connecting hole into the oil pump compartment 1, so that when braking, the brakes can be smooth while meeting daily use. At the same time, when needed, the oil pressure in the oil pipe can be instantly increased, making the braking effect better and the braking more sensitive.

[0010] Furthermore, the driving assembly includes a rotating block rotatably connected to the brake handle, a piston rod rotatably connected to the booster piston 1, an end of the piston rod away from the booster piston 1 passes through the rotating block and is threadedly connected to the rotating block, and an adjusting booster part is provided between the booster piston 2 and the rotating block.

[0011] By adopting the above technical solution, the brake handle drives the rotating block, the rotating block drives the piston rod, and the piston rod pushes the booster piston one. After the brake handle moves to the boosting position, the rotating block drives the adjusting booster part, which drives the adjusting booster piston two, so that the booster piston two and the booster piston one move at the same time. As a result, after the booster piston one moves, the booster piston one and the booster piston two move at the same time, so that the brake oil in the oil pipe is further pressurized, thereby improving the braking sensitivity.

[0012] Furthermore, the regulating booster component includes an regulating sleeve rod fixed on the boosting piston 2, an regulating rod is rotatably and slidably connected to the regulating sleeve rod, the regulating rod passes through the rotating block and is threadedly connected to the rotating block, an regulating block is fixed to one end of the regulating rod close to the regulating sleeve rod, and the regulating block is slidably connected to the regulating sleeve rod.

[0013] By adopting the above technical solution, the rotating block drives the adjusting rod to move, so that the adjusting rod moves on the adjusting sleeve rod. When the adjusting block moves to the end of the adjusting sleeve rod, the adjusting block pushes the adjusting sleeve rod, and the adjusting sleeve rod pushes the booster piston 2, so that the booster piston 1 can be moved first. After the booster piston 1 moves a certain distance, the booster piston 1 and the booster piston 2 can be moved at the same time.

[0014] Furthermore, a limit block is provided in the second oil pump compartment, the limit block is fixedly connected to the oil pump block, and the limit block is located at one end of the second oil pump compartment close to the opening.

[0015] By adopting the above technical solution, the return spring pushes the booster piston 2 and the booster piston 1, allowing the booster piston 2 to move to a position that contacts the limit block. The booster piston 1 continues to move, and the rotating block drives the adjusting rod to move on the adjusting sleeve rod, so that the booster piston 2 can be limited when it is reset, allowing the adjusting rod and the adjusting sleeve rod to reset the moving space.

[0016] Furthermore, the regulating valve mechanism includes a valve plate arranged in the second oil pump compartment, a valve port is opened on the valve plate, the valve port corresponds to the connecting hole, a sliding component is arranged between the valve plate and the oil pump block, and a pushing component is arranged between the valve plate and the second booster piston.

[0017] By adopting the above technical solution, the adjusting rod pushes the adjusting block to move in the adjusting sleeve rod, and then the adjusting block pushes the adjusting sleeve rod, and the adjusting sleeve rod pushes the booster piston 2. The booster piston 2 squeezes the pushing component when moving, and the pushing component pushes the valve plate, so that the valve plate moves under the support of the sliding component, and the valve port on the valve plate is aligned with the connecting hole, so that when the booster piston 2 moves, the oil pump cabin 1 and the oil pump cabin 2 are connected, and when the booster piston 2 does not move, the oil pump cabin 1 and the oil pump cabin 2 remain independent.

[0018] Furthermore, the sliding assembly includes sliding bars fixed on both sides of the valve plate, and a sliding groove corresponding to the sliding bar is opened in the second oil pump compartment. The sliding bar is located in the sliding groove and is slidably connected to the oil pump block.

[0019] By adopting the above technical solution, the sliding bar moves in the sliding groove, and the sliding bar supports the valve plate, so that the valve plate can move along the connecting hole and keep the valve plate stable during movement.

[0020] Furthermore, the pushing assembly includes a pushing block fixed on the second boosting piston, a pushing spring is provided between the pushing block and the valve plate, and both ends of the pushing spring are fixedly connected to the valve plate and the pushing block.

[0021] By adopting the above technical solution, the push spring pushes the valve plate, so that the valve port on the valve plate is aligned with the connecting hole, and then the booster piston 2 continues to squeeze the push spring. When the booster piston 2 is reset, the booster piston 2 drives the push block to move. During the movement, the push spring is always in a squeezed state, so that the valve port on the valve plate is aligned with the connecting hole. As a result, when the booster piston 2 moves, the valve port on the valve plate is aligned with the connecting hole, which facilitates the brake oil to return to the oil pump compartment 2.

[0022] In summary, the present application includes at least one of the following beneficial effects: 1. In this application, by directly squeezing the brake handle, the brake handle rotates on the support frame, the brake handle drives the rotating block, the rotating block drives the piston rod, the piston rod pushes the booster piston 1, and the booster piston 1 pushes the brake oil in the oil pump compartment 1 into the oil pipe. At the same time, the rotating block drives the adjusting rod to move, the adjusting rod drives the adjusting rod to slide in the adjusting sleeve rod, the adjusting rod drives the adjusting rod to move on the adjusting sleeve rod, when the adjusting block moves to the end of the adjusting sleeve rod, the adjusting block pushes the adjusting sleeve rod, and the adjusting sleeve rod pushes the booster piston 2, and the booster piston 2 moves in the oil pump compartment 2. When the booster piston 2 moves, it squeezes the pushing assembly, and the pushing assembly pushes the valve plate, allowing the valve plate to move under the support of the sliding assembly, so that the valve port on the valve plate is aligned with the connecting hole, allowing the oil pump compartment 1 and the oil pump compartment 2 to be connected, allowing the brake oil in the oil pump compartment 2 to enter the oil pump 1, and then enter the oil pipe, so that the pressure in the oil pipe is further increased, so that when braking, the brake can be smooth to meet daily use, and when needed, the oil pressure in the oil pipe can be instantly increased, making the braking effect better and the braking more sensitive.

[0023] 2. In the present application, after the booster piston 2 and the booster piston 1 have completed squeezing the brake oil in the oil pump compartment 2 and the oil pump compartment 1, the brake handle is released, and then the reset spring pushes the booster piston 2 and the booster piston 1, so that the booster piston 2 moves to the position of contacting the limit block, and the booster piston 1 continues to move, and the rotating block drives the adjusting rod to move on the adjusting sleeve rod, thereby achieving the purpose of limiting the booster piston 2 when resetting, and resetting the moving space between the adjusting rod and the adjusting sleeve rod.

[0024] 3. In the present application, when the booster piston moves, the booster piston squeezes the push block, the push block squeezes the push spring, and the push spring pushes the valve plate, so that the valve port on the valve plate is aligned with the connecting hole, and then the booster piston continues to squeeze the push spring. When the booster piston is reset, the booster piston drives the push block to move. During the movement, the push spring is always in a squeezed state, so that the valve port on the valve plate is kept aligned with the connecting hole. When the squeezing spring is fully expanded, the push block drives the push spring, and the push spring drives the valve plate, so that the valve port on the valve plate is misaligned with the connecting hole, thereby achieving the purpose of allowing the valve port on the valve plate to be aligned with the connecting hole when the booster piston moves, thereby facilitating the brake oil to return to the oil pump compartment 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a first three-dimensional structural diagram of the brake device in this application; Figure 2 It is a schematic diagram of the internal structure of the brake device in this application; Figure 3 It is a schematic diagram of the partially disassembled structure of the brake device in this application; Figure 4 This application Figure 2 A in the middle is an enlarged schematic diagram; Figure 5 This application Figure 2 The enlarged schematic diagram of point B in the middle; Figure 6 This application Figure 3 Enlarged schematic diagram at point C in the middle.

[0026] Description of reference numerals: 1. Brake handle; 2. Fixed ring; 3. Oil pipe; 4. Multi-stage booster oil pump mechanism; 41. Oil pump block; 42. Oil pump compartment one; 43. Oil pump compartment two; 44. Return spring; 45. Booster piston one; 46. Booster piston two; 47. Driving assembly; 471. Rotating block; 472. Piston rod; 474. Adjusting booster component; 4741. Adjusting rod; 4742. Adjusting sleeve rod; 4743. Adjusting block; 48. Connecting hole; 49. Limit block; 5. Adjusting valve mechanism; 51. Valve plate; 52. Valve port; 53. Sliding assembly; 531. Sliding groove; 532. Sliding bar; 54. Pushing assembly; 541. Pushing block; 542. Pushing spring; 6. Support frame. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 —6 Further explain this application in detail.

[0028] The embodiments of the present application disclose a booster oil pump and a brake device thereof.

[0029] Reference Figure 1 、 Figure 2 and Figure 3 A booster oil pump and its brake device include a support frame 6, a brake handle 1 is rotatably connected to the support frame 6, a fixing ring 2 is installed on the support frame 6, an oil pipe 3 is provided on one side of the support frame 6, a multi-stage booster oil pump mechanism 4 is provided between the brake handle 1 and the oil pipe 3, and an adjusting valve mechanism 5 is provided between the brake handle 1 and the oil pipe 3.

[0030] When using the oil pump brake device, first use the fixing ring 2 to fix the support frame 6 and the brake handle 1 to the handlebar, and then connect the oil pipe 3 on the support frame 6 to the oil brake device on the wheel. When the bicycle is running, when the brakes are needed, directly squeeze the brake handle 1 to rotate the brake handle 1 on the support frame 6. The brake handle 1 drives the multi-stage booster oil pump mechanism 4 to start supplying brake oil to the oil pipe 3, allowing the brake oil to enter the oil brake device on the wheel from the multi-stage booster oil pump mechanism 4. After the brake handle 1 moves to half the stroke on the support frame 6, the multi-stage booster oil pump mechanism 4 drives the regulating valve mechanism 5, and the regulating valve mechanism 5 opens, allowing the multi-stage booster oil pump mechanism 4 to start supplying brake oil to the oil pipe 3. The brake oil in the oil pump mechanism 4 is doubled and transported to the oil pipe 3, so that the pressure in the oil brake device on the wheel is further increased, and the braking force is increased. When braking, the brake handle 1 drives the multi-stage booster oil pump mechanism 4 to inject oil into the oil pipe 3. After the brake handle 1 moves to the moving stroke, the multi-stage booster oil pump mechanism 4 drives the regulating valve mechanism 5 to open, and then the brake oil in the multi-stage booster oil pump mechanism 4 is doubled and injected into the oil pipe 3. Therefore, when braking, the brakes can be smooth while meeting daily use. At the same time, the oil pressure in the oil pipe 3 can be instantly increased when needed, resulting in better braking effect and more sensitive braking.

[0031] Reference Figure 2 、 Figure 3 and Figure 4 The multi-stage booster oil pump mechanism 4 includes an oil pump block 41 fixed to the support frame 6, an oil pump compartment 1 42 is provided on the oil pump block 41, and an oil pump compartment 2 43 is provided on the oil pump block 41. The oil pump compartment 1 42 and the oil pump compartment 2 43 are open toward one end of the support frame 6, and a connecting hole 48 is provided between the oil pump compartment 1 42 and the oil pump compartment 2 43. A booster piston 1 45 slidably connected to the oil pump block 41 is provided in the oil pump compartment 1 42, and a booster piston 2 46 slidably connected to the oil pump block 41 is provided in the oil pump compartment 2 43. A return spring 44 is provided between the booster piston 1 45, the booster piston 2 46 and the oil pump block 41, and one end of the return spring 44 is fixedly connected to the oil pump block 41, and the other end is fixedly connected to the corresponding booster piston 1 45 and the booster piston 2 46. A driving component 47 is provided between the booster piston 2 46, the booster piston 1 45 and the brake handle 1.

[0032] When the brake handle 1 is squeezed, the brake handle 1 drives the driving component 47, and the driving component 47 first drives the booster piston 1 45 to move in the oil pump compartment 1 42, and the booster piston 1 45 pushes the brake oil into the oil pipe 3 for braking. The brake handle 1 is released, and the booster piston 1 45 is reset to its original position under the drive of the return spring 44, allowing the oil in the oil pipe 3 to return to the oil pump compartment 1 42. After squeezing the brake handle 1 to move the driving component 47 to the boost range, the driving component 47 drives the regulating valve mechanism 5 to move away from the connecting hole 48, and then drives the component 47 to push the booster piston 2 46, allowing the booster piston 2 46 to push the brake oil in the oil pump compartment 2 43 through the connecting hole. 48 enters the oil pump compartment 1 42, allowing the brake oil in the oil pump compartment 1 42 and the oil pump compartment 2 43 to enter the oil pipe 3 at the same time, instantly increasing the pressure in the oil pipe 3, and allowing the driving component 47 to drive the boosting piston 1 45 to move to the boosting range. The connecting hole 48 connects the oil pump compartment 1 42 and the oil pump compartment 2 43, and the driving component 47 drives the boosting piston 2 46 and the boosting piston 1 45 to move at the same time, allowing the oil pressure entering the oil pipe 3 to be further increased, so that when braking, the brakes can be smooth and meet daily use. At the same time, when needed, the oil pressure in the oil pipe 3 can be instantly increased, making the braking effect better and the braking more sensitive.

[0033] Reference Figure 2 、 Figure 3 and Figure 4 The driving component 47 includes a rotating block 471 rotatably connected to the brake handle 1, and a piston rod 472 is rotatably connected to the booster piston 1 45. The end of the piston rod 472 away from the booster piston 1 45 passes through the rotating block 471 and is threadedly connected to the rotating block 471. An adjusting booster component 474 is provided between the booster piston 2 46 and the rotating block 471.

[0034] Squeeze the brake lever 1, and let the brake lever 1 drive the rotating block 471, and the rotating block 471 drives the piston rod 472, and the piston rod 472 pushes the booster piston 1 45, and the booster piston 1 45 pushes the brake oil in the oil pump compartment 1 42 into the oil pipe 3. After that, after the brake lever 1 moves to the boost position, the rotating block 471 drives the booster adjustment member 474, and the booster adjustment member 474 drives the booster piston 2 46, and the booster piston 2 46 and the booster piston 1 45 move at the same time, so that the oil The brake oil in the pump compartment 1 42 and the oil pump compartment 2 43 enters the oil pipe 3 at the same time. By allowing the brake handle 1 to drive the rotating block 471, and allowing the rotating block 471 to drive the booster piston 1 45, the brake handle 1 uses the adjusting booster part 474 to drive the booster piston 2 46 in the boosting area. As a result, after the booster piston 1 45 moves, the booster piston 1 45 and the booster piston 2 46 move at the same time, so that the brake oil in the oil pipe 3 is further pressurized, thereby improving the braking sensitivity.

[0035] Reference Figure 2 、 Figure 3 and Figure 4 The pressure regulating member 474 includes an adjusting sleeve 4742 fixed on the pressure boosting piston 46, and an adjusting rod 4741 is rotatably and slidably connected to the adjusting sleeve 4742. The adjusting rod 4741 passes through the rotating block 471 and is threadedly connected to the rotating block 471. An adjusting block 4743 is fixed to the end of the adjusting rod 4741 close to the adjusting sleeve 4742, and the adjusting block 4743 is slidably connected to the adjusting sleeve 4742.

[0036] The brake handle 1 drives the rotating block 471, the rotating block 471 drives the adjusting rod 4741 to move, the adjusting rod 4741 drives the adjusting sleeve rod 4742 to slide, the adjusting rod 4741 drives the adjusting rod 4741, and the adjusting rod 4741 moves on the adjusting sleeve rod 4742. When the adjusting block 4743 moves to the end of the adjusting sleeve rod 4742, the adjusting block 4743 pushes the adjusting sleeve rod 4742, and the adjusting sleeve rod 4742 pushes the boost piston 2 46, so that the boost piston Plug 2 46 moves in oil pump compartment 2 43, allowing the brake oil in oil pump compartment 2 43 to enter oil pump compartment 2 43. By allowing the rotating block 471 to drive the adjusting rod 4741, and allowing the adjusting rod 4741 to drive the adjusting block 4743 to move a certain distance, the adjusting block 4743 pushes the booster piston 2 46, so that the booster piston 1 45 can be easily moved. After the booster piston 1 45 moves a certain distance, the booster piston 1 45 and the booster piston 2 46 are moved at the same time.

[0037] Reference Figure 2 and Figure 4 A limit block 49 is provided in the second oil pump compartment 43. The limit block 49 is fixedly connected to the oil pump block 41 and is located at one end of the second oil pump compartment 43 near the opening. After the booster pistons 2 and 1, 46, 45, have finished squeezing the brake fluid in the second and 1, 42, the brake handle 1 is released. The return spring 44 then pushes the booster pistons 2 and 1, 45, causing the booster piston 2 to move to a position where it abuts the limit block 49. The booster piston 1, 45, continues to move, and the rotating block 471 drives the adjustment rod 4741, causing the adjustment rod 4741 to move on the adjustment sleeve 4742. By providing the limit block 49 in the second oil pump compartment 43, the booster piston 2, 46, is limited during its reset, allowing the adjustment rod 4741 and the adjustment sleeve 4742 to reset and create space for movement.

[0038] Reference Figure 2 、 Figure 3 、 Figure 5 and Figure 6The regulating valve mechanism 5 includes a valve plate 51 arranged in the oil pump compartment 43, and a valve port 52 is opened on the valve plate 51, and the valve port 52 corresponds to the connecting hole 48. A sliding component 53 is provided between the valve plate 51 and the oil pump block 41, and a pushing component 54 is provided between the valve plate 51 and the booster piston 46.

[0039] The adjusting rod 4741 pushes the adjusting block 4743 to move in the adjusting sleeve rod 4742, and then the adjusting block 4743 pushes the adjusting sleeve rod 4742, and the adjusting sleeve rod 4742 pushes the boosting piston 2 46. The boosting piston 2 46 squeezes the pushing component 54 when moving, and the pushing component 54 pushes the valve plate 51, so that the valve plate 51 moves under the support of the sliding component 53, so that the valve port 52 on the valve plate 51 is aligned with the connecting hole 48, so that the oil pump cabin 1 42 and the oil pump cabin 2 43 are connected, so that the brake oil in the oil pump cabin 2 43 enters the oil pump 1, and then enters the oil pipe 3. When the boosting piston 2 46 is reset, the pushing component 54 allows the valve port 52 on the valve plate 51 to remain connected with the connecting hole 48. When the brake oil enters the oil In the pump compartment 2 43, after the booster piston 2 46 moves a certain distance, the booster piston 2 46 drives the pushing assembly 54, which drives the valve plate 51, so that the valve port 52 on the valve plate 51 is misaligned with the connecting hole 48, thereby separating the oil pump compartment 1 42 and the oil pump compartment 2 43. When the booster piston 1 45 and the booster piston 2 46 move, the booster piston 2 46 squeezes the pushing assembly 54 when moving, so that the pushing assembly 54 drives the valve plate 51, so that the valve port 52 on the valve plate 51 is connected with the connecting hole 48, so that when the booster piston 2 46 moves, the oil pump compartment 1 42 and the oil pump compartment 2 43 are connected, and when the booster piston 2 46 does not move, the oil pump compartment 1 42 and the oil pump compartment 2 43 remain independent.

[0040] Reference Figure 3 and Figure 6 The sliding assembly 53 includes sliding bars 532 fixed on both sides of the valve plate 51. A sliding groove 531 corresponding to the sliding bar 532 is opened in the oil pump compartment 43. The sliding bar 532 is located in the sliding groove 531 and is slidably connected to the oil pump block 41.

[0041] When the valve plate 51 moves, the valve plate 51 drives the sliding bar 532 to move in the sliding groove 531. The sliding bar 532 supports the valve plate 51, allowing the valve plate 51 to move closely to the connecting hole 48 when moving. By allowing the sliding bar 532 to support the valve plate 51, the valve plate 51 can move close to the connecting hole 48, so that the valve plate 51 remains stable when moving.

[0042] Reference Figure 3 and Figure 6The pushing assembly 54 includes a pushing block 541 fixed on the boosting piston 46 , a pushing spring 542 is provided between the pushing block 541 and the valve plate 51 , and both ends of the pushing spring 542 are fixedly connected to the valve plate 51 and the pushing block 541 .

[0043] When the booster piston 46 moves, the booster piston 46 squeezes the push block 541, the push block 541 squeezes the push spring 542, and the push spring 542 pushes the valve plate 51, so that the valve port 52 on the valve plate 51 is aligned with the connecting hole 48, and then the booster piston 46 continues to squeeze the push spring 542. When the booster piston 46 is reset, the booster piston 46 drives the push block 541 to move. During the movement, the push spring 542 is always in a squeezed state, so that the valve port 52 on the valve plate 51 is aligned with the connecting hole 48. Keep them aligned. When the extrusion spring is fully expanded, the push block 541 drives the push spring 542, and the push spring 542 drives the valve plate 51, so that the valve port 52 on the valve plate 51 is misaligned with the connecting hole 48. When the booster piston 2 46 moves, the push spring 542 drives the valve plate 51 to move, and the push spring 542 squeezes the valve plate 51. As a result, when the booster piston 2 46 moves, the valve port 52 on the valve plate 51 is aligned with the connecting hole 48, which facilitates the return of the brake oil to the oil pump compartment 2 43.

[0044] Working principle: When using the oil pump brake device, first use the fixing ring 2 to fix the support frame 6 and the brake handle 1 to the handlebar, and then connect the oil pipe 3 on the support frame 6 to the oil brake device on the wheel. When the bicycle is running, when braking is needed, directly squeeze the brake handle 1 to rotate the brake handle 1 on the support frame 6, so that the brake handle 1 drives the rotating block 471, the rotating block 471 drives the piston rod 472, the piston rod 472 pushes the boosting piston 45, and the boosting piston 45 pushes the brake oil in the oil pump cabin 42 into the oil pipe 3, and at the same time the rotating block 471 drives the adjusting rod 4741 to move, the adjusting rod 4741 drives the adjusting sleeve rod 4742 to slide, and the adjusting rod 4741 drives the adjusting rod 474 1. Let the adjusting rod 4741 move on the adjusting sleeve rod 4742. When the adjusting block 4743 moves to the end of the adjusting sleeve rod 4742, the adjusting block 4743 pushes the adjusting sleeve rod 4742, and the adjusting sleeve rod 4742 pushes the boosting piston 2 46, so that the boosting piston 2 46 moves in the oil pump compartment 2 43. When the boosting piston 2 46 moves, it squeezes the pushing component 54, and the pushing component 54 pushes the valve plate 51, so that the valve plate 51 moves under the support of the sliding component 53, so that the valve port 52 on the valve plate 51 is aligned with the connecting hole 48, so that the oil pump compartment 1 42 and the oil pump compartment 2 43 are connected, so that the brake oil in the oil pump compartment 2 43 enters the oil pump 1, and then enters the oil pipe 3, so that the pressure in the oil pipe 3 is further increased.

Claims

1. A booster oil pump and a brake device thereof, comprising a support frame (6), characterized in that: A brake handle (1) is rotatably connected to the support frame (6), a fixing ring (2) is installed on the support frame (6), an oil delivery pipe (3) is provided on one side of the support frame (6), a multi-stage booster oil pump mechanism (4) is provided between the brake handle (1) and the oil delivery pipe (3), and a regulating valve mechanism (5) is provided between the brake handle (1) and the oil delivery pipe (3).

2. The booster oil pump and brake device according to claim 1, characterized in that: The multi-stage boosting oil pump mechanism (4) includes an oil pump block (41) fixed on a support frame (6), an oil pump compartment 1 (42) is provided on the oil pump block (41), an oil pump compartment 2 (43) is provided on the oil pump block (41), the oil pump compartment 1 (42) and the oil pump compartment 2 (43) are open toward one end of the support frame (6), a connecting hole (48) is provided between the oil pump compartment 1 (42) and the oil pump compartment 2 (43), and a boosting piston 1 (45) is provided in the oil pump compartment 1 (42) and is slidably connected to the oil pump block (41). A booster piston 2 (46) slidably connected to the oil pump block (41) is provided in the oil pump compartment 2 (43), and a return spring (44) is provided between the booster piston 1 (45), the booster piston 2 (46) and the oil pump block (41). One end of the return spring (44) is fixedly connected to the oil pump block (41), and the other end is fixedly connected to the corresponding booster piston 1 (45) and the booster piston 2 (46). A driving component (47) is provided between the booster piston 2 (46), the booster piston 1 (45) and the brake handle (1).

3. The booster oil pump and brake device according to claim 2, characterized in that: The driving assembly (47) includes a rotating block (471) rotatably connected to the brake handle (1), a piston rod (472) rotatably connected to the booster piston (45), an end of the piston rod (472) away from the booster piston (45) passes through the rotating block (471) and is threadedly connected to the rotating block (471), and an adjusting boosting member (474) is provided between the booster piston (46) and the rotating block (471).

4. The booster oil pump and brake device according to claim 3, characterized in that: The regulating booster (474) comprises an regulating sleeve (4742) fixed on the second booster piston (46); an regulating rod (4741) is rotatably and slidably connected to the regulating sleeve (4742); the regulating rod (4741) passes through the rotating block (471) and is threadedly connected to the rotating block (471); an regulating block (4743) is fixed to one end of the regulating rod (4741) close to the regulating sleeve (4742); and the regulating block (4743) is slidably connected to the regulating sleeve (4742).

5. The booster oil pump and brake device according to claim 4, characterized in that: A limit block (49) is provided in the second oil pump compartment (43), the limit block (49) is fixedly connected to the oil pump block (41), and the limit block (49) is located at one end of the second oil pump compartment (43) close to the opening.

6. The booster oil pump and brake device according to claim 2, characterized in that: The regulating valve mechanism (5) includes a valve plate (51) arranged in the second oil pump compartment (43), a valve port (52) is provided on the valve plate (51), and the valve port (52) corresponds to the communication hole (48), a sliding component (53) is provided between the valve plate (51) and the oil pump block (41), and a pushing component (54) is provided between the valve plate (51) and the second booster piston (46).

7. The booster oil pump and brake device according to claim 6, characterized in that: The sliding assembly (53) includes sliding bars (532) fixed on both sides of the valve plate (51), and a sliding groove (531) corresponding to the sliding bar (532) is opened in the second oil pump compartment (43). The sliding bar (532) is located in the sliding groove (531) and is slidably connected to the oil pump block (41).

8. The booster oil pump and brake device according to claim 7, characterized in that: The pushing assembly (54) includes a pushing block (541) fixed on the second boosting piston (46), a pushing spring (542) is provided between the pushing block (541) and the valve plate (51), and both ends of the pushing spring (542) are fixedly connected to the valve plate (51) and the pushing block (541).

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