A parking structure with a limiting function

Abstract

The present invention is applicable to the technical field of hydraulic brakes, and provides a parking structure with a limiting function, including an oil pump base body, a brake handle is rotatably connected to the oil pump base body, a piston chamber is arranged on the oil pump base body, the piston chamber is connected to the brake oil circuit of the vehicle, an elastic member is arranged in the piston chamber, a piston is slidably connected in the piston chamber, the end of the elastic member abuts against the piston, a fixing member for fixing the oil pump base body on the vehicle handle is arranged on the oil pump base body, and further includes: a push rod ball-jointed at one end of the piston, a core shaft hole is arranged on the brake handle, a push rod core shaft is rotatably connected to the core shaft hole, and the end of the push rod is threadedly connected to the push rod core shaft. In this application, the locking group needs to be repeatedly pressed to perform the actions of parking and releasing parking, thereby generating a pseudo-locking limiting function to avoid accidentally releasing the parking state during parking and ensuring safety during parking.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydraulic brakes, and in particular relates to a parking structure with a limiting function. Background Art

[0002] In recent years, advancements in vehicle technology and road surface improvements have led to continuous improvements in the performance and quality of electric scooters, bicycles, electric power-assisted bicycles, and motor vehicles, resulting in significantly higher speeds. The braking systems for these vehicles have evolved from traditional rubber brake systems to disc brake systems. These systems primarily utilize calipers fixed to the vehicle body to clamp discs that sync with the wheels, providing accurate feedback for faster and more agile braking. Furthermore, the braking action of these disc brake systems has evolved from a brake handle that drives the caliper via a cable to a brake handle that drives hydraulic fluid, causing the hydraulic fluid in the oil circuit to push the brake caliper to achieve the braking effect.

[0003] To prevent the vehicle from moving freely when parked, the vehicle is kept in a continuously braked parking state. At this time, the rider needs to continuously hold the brake handle to avoid releasing the brake. However, holding the brake handle for a long time is not only laborious, but also may cause the brake to be released improperly if the rider is not careful, which has a negative impact on parking safety. Therefore, existing hydraulic brake systems are usually designed with a parking structure. The design of the existing parking structure is relatively complex, with many parts and high manufacturing and assembly costs. As a result, both hands are required to operate when executing or releasing the parking action, and the parking function cannot be operated effectively, quickly and easily, which directly affects the practicality of its parking function. Summary of the Invention

[0004] The purpose of the embodiments of the present invention is to provide a parking structure with a limiting function, aiming to solve the safety problem caused by the parking action being easily released due to accidental touch during the existing parking.

[0005] The present invention is implemented as follows. A parking structure with a limiting function includes an oil pump base body. A brake handle is rotatably connected to the oil pump base body. A piston chamber is provided on the oil pump base body. The piston chamber is connected to the brake oil circuit of the vehicle. An elastic member is provided in the piston chamber. A piston is slidably connected in the piston chamber. The end of the elastic member abuts against the piston. A fixing member for fixing the oil pump base body to the vehicle handle is provided on the oil pump base body. It further includes: a push rod ball-jointed at one end of the piston. A core shaft hole is provided on the brake handle. A push rod core shaft is rotatably connected to the core shaft hole. The end of the push rod is threadedly connected to the push rod core shaft. A perforation is provided on the oil pump base body. A locking hole is provided at the end of the push rod core shaft. A limit pin penetrates through the perforation. A locking group is provided on the oil pump base body. The locking group controls the movement of the brake handle by controlling the insertion of the limit pin into the locking hole. [[ID=~1]] [[ID=~2]]

[0006] In a further technical solution, the fixing member is a tightening member. The tightening member includes a fixed part and a movable part. Semi-circular grooves are provided on both the fixed part and the movable part. The fixed part is fixed on the oil pump base body. The movable part is connected to the fixed part by a bolt. [[ID=~4]] [[ID=~5]]

[0007] In a further technical solution, a pivot ear seat is fixed on the oil pump base body. A pivot hole is provided on the brake handle. A pivot shaft is rotatably connected to the pivot hole. The pivot shaft is rotatably connected to the pivot ear seat. [[ID=~7]] [[ID=~8]]

[0008] In a further technical solution, the locking group includes a fixed seat, a floating key, a nut, a limit gear, a push rod, and a return spring. The fixed seat is fixed on the oil pump base body. An installation hole corresponding to the perforation is provided on the fixed seat. At least two spiral turning teeth are evenly provided on the inner wall of the installation hole. The spiral turning teeth include an action guide groove, a high-position locking guide rail, and a release guide rail. The release guide rail is communicated with the action guide groove. The floating key is arranged in the installation hole. A slider corresponding to the action guide groove is fixed on the side wall of the floating key. A guide cone tooth twice the number of the spiral turning teeth is provided on the top surface of the floating key. A receiving groove is provided at one end of the floating key where the guide cone tooth is located. The limit gear is movably arranged at one end of the floating key where the receiving groove is located. Guide blocks with the same number as the spiral turning teeth are provided on the limit gear. A guiding inclined surface for cooperating with the guide cone tooth is provided on the guide block. The return spring is sleeved on the limit pin. An enlarged end is provided at one end of the limit pin close to the limit gear. [[ID=~10]] [[ID=~11]]

[0009] In a further technical solution, the locking group further includes a nut and a push rod. The push rod penetrates through the limit gear and is threadedly connected to the nut. The end of the push rod abuts against the limit pin. [[ID=~13]] [[ID=~14]]

[0010] According to a further technical solution, an enlarged end is provided at one end of the limit pin, an enlarged groove portion is provided on one end of the through hole located at the fixed seat, and both ends of the return spring are in contact with the enlarged end and the enlarged end respectively.

[0011] According to a further technical solution, the fixing seat is fixed to the oil pump base by at least one locking piece.

[0012] The embodiment of the present invention provides a parking structure with a limiting function. When the brake handle is gripped, the brake handle pulls the push rod, which pulls the piston. The piston overcomes the elastic force of the elastic member and moves. The hydraulic oil in the oil pump base is pressed into the brake oil circuit and produces a braking effect. At this time, the limit pin and the lock hole are in a coaxial state. The locking group is pressed. The locking group controls the movement of the brake handle by controlling the limit pin to enter the lock hole, so as to produce a parking effect after braking. When the movement restriction of the brake handle is released, the locking group is pressed again. The limit pin disengages from the lock hole, and the elastic member pulls the piston to move in the opposite direction and reset, allowing hydraulic oil to enter the oil pump base again. In this application, the locking group needs to be pressed repeatedly to achieve the parking and release actions, thereby generating a quasi-locking limiting function, thereby preventing the parking state from being released arbitrarily due to accidental touch during the parking process, thereby ensuring safety during parking. The application can simply and quickly complete the parking and release actions, which is not only convenient to operate but also improves its practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic structural diagram of a parking structure with a restrictive effect provided by an embodiment of the present invention;

[0014] Figure 2 An exploded view of a parking structure with a restrictive effect provided by an embodiment of the present invention;

[0015] Figure 3 The embodiment of the present invention provides Figure 1 Exploded view of the locked group;

[0016] Figure 4 A schematic side cross-sectional view of a parking structure with a restrictive effect provided by an embodiment of the present invention in an unparked state;

[0017] Figure 5 A schematic side cross-sectional view of a parking structure with a restrictive effect provided by an embodiment of the present invention in a parking state;

[0018] Figures 6 - 9 A partial cross-sectional diagram of the parking and release actions of a parking structure with a restrictive function provided by an embodiment of the present invention.

[0019] In the accompanying drawings: oil pump base 10, piston chamber 100, tightening member 11, pivot ear seat 12, piston 15, elastic member 16, push rod 17, perforation 18, widened groove portion 180, brake handle 20, pivot hole 21, pivot shaft 22, core shaft hole 23, push rod core shaft 25, lock hole 26, locking group 30, fixed seat 31, locking member 310, mounting hole 311, spiral turning tooth 32, action guide groove 320, high - level locking guide rail 321, release guide rail 322, floating key 33, slider 330, guide bevel gear 331, receiving groove 335, nut 34, limit gear 35, guide block 351, guiding inclined surface 352, ejector rod 36, limit pin 38, enlarged end 380, return spring 39. Embodiment

[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] The following describes in detail the specific implementation of the present invention with reference to specific embodiments.

[0022] As Figures 1 - 5 As shown, a parking structure with a limiting function provided by an embodiment of the present invention includes an oil pump base 10. A brake handle 20 is rotatably connected to the oil pump base 10. A piston chamber 100 is provided on the oil pump base 10. The piston chamber 100 is connected to the brake oil circuit of the vehicle. An elastic member 16 is provided in the piston chamber 100. A piston 15 is slidably connected in the piston chamber 100. The end of the elastic member 16 abuts against the piston 15. A fixing member for fixing the oil pump base 10 on the vehicle handle is provided on the oil pump base 10. It further includes: a push rod 17 ball - jointed at one end of the piston 15. A core shaft hole 23 is provided on the brake handle 20. A push rod core shaft 25 is rotatably connected to the core shaft hole 23. The end of the push rod 17 is threadedly connected to the push rod core shaft 25. A perforation 18 is provided on the oil pump base 10. A lock hole 26 is provided at the end of the push rod core shaft 25. A limit pin 38 penetrates through the perforation 18. A locking group 30 is provided on the oil pump base 10. The locking group 30 controls the movement of the brake handle 20 by controlling the limit pin 38 to insert into the lock hole 26.

[0023] In the embodiment of the present invention, the elastic member 16 is a compression spring; when the brake handle 20 is held, the brake handle 20 pulls the push rod 17, the push rod 17 pulls the piston 15, the piston 15 overcomes the elastic force of the elastic member 16 and moves, the hydraulic oil in the oil pump base 10 is pressed into the brake oil circuit and produces a braking effect. At this time, the limit pin 38 and the lock hole 26 are in a coaxial state, and the locking group 30 is pressed. The locking group 30 controls the movement of the brake handle 20 by controlling the limit pin 38 to be inserted into the lock hole 26, so that the parking effect is produced after braking, and the movement limit of the brake handle 20 is released. When the vehicle is parked, the locking group 30 is pressed again, the limit pin 38 is disengaged from the lock hole 26, and the elastic member 16 pulls the piston 15 to move in the opposite direction and reset, so that the hydraulic oil enters the oil pump base 10 again. The present application requires repeated pressing of the locking group 30 to achieve the action of executing parking and releasing parking, and produces a limiting function of the intended lock to avoid arbitrarily releasing the parking state due to accidental touch during the parking process, so as to ensure safety during parking; the present application can simply and quickly complete the action of executing parking and releasing parking, which is not only convenient to operate, but also can enhance its practicality.

[0024] like Figure 1 As shown, as a preferred embodiment of the present invention, the fixing member is a tightening member 11, and the tightening member 11 includes a fixed part and a movable part, and semicircular grooves are provided on the fixed part and the movable part. The fixed part is fixed on the oil pump base 10, and the movable part is connected to the fixed part by bolts.

[0025] In the embodiment of the present invention, the vehicle handle is placed between the fixed part and the movable part, and then the bolt is turned to achieve fixed installation of the device.

[0026] like Figure 1 As shown, as a preferred embodiment of the present invention, a pivot ear seat 12 is fixed on the oil pump base 10, a pivot hole 21 is provided on the brake handle 20, a pivot 22 is rotatably connected to the pivot hole 21, and the pivot 22 is rotatably connected to the pivot ear seat 12.

[0027] In the embodiment of the present invention, when the brake handle 20 is gripped, the brake handle 20 rotates around the pivot 22 .

[0028] like Figures 1 - 9As shown, as a preferred embodiment of the present invention, the locking group 30 includes a fixed seat 31, a floating key 33, a nut 34, a limiting gear 35, a push rod 36 and a return spring 39, the fixed seat 31 is fixed on the oil pump base 10, the fixed seat 31 is provided with a mounting hole 311 corresponding to the through hole 18, and at least two spiral dial teeth 32 are evenly arranged on the inner wall of the mounting hole 311, the spiral dial teeth 32 include an action guide groove 320, a high-position locking guide rail 321 and a release guide rail 322, the release guide rail 322 is connected to the action guide groove 320, the floating key 33 is arranged in the mounting hole 311, and the floating key 33 is arranged in the mounting hole 311. A slider 330 corresponding to the guide groove 320 is fixed on the side wall, and the top surface of the floating key 33 is provided with a guide cone tooth 331 that is twice the size of the spiral dial tooth 32, and the floating key 33 is provided with a receiving groove 335 at one end of the guide cone tooth 331; the limiting gear 35 is movably arranged at one end of the floating key 33 located at the receiving groove 335, and the limiting gear 35 is provided with a guide block 351 with the same number as the spiral dial tooth 32, and the guide block 351 is provided with a guide slope 352 that cooperates with the guide cone tooth 331, and the reset spring 39 is sleeved on the limiting pin 38, and the limiting pin 38 is provided with an enlarged end 380 at the end close to the limiting gear 35.

[0029] In the embodiment of the present invention, the spiral dial teeth 32 are specifically provided with four groups. When the floating key 33 is pressed, the slider 330 on the floating key 33 will not completely separate from the guide groove 320. In the initial state, the guide block 351 is located in the guide groove 320. After the brake handle 20 is pressed to the brake position, when there is a parking demand (such as Figure 5 As shown in FIG, the floating key 33 is pressed, and the floating key 33 moves into the mounting hole 311 under the guidance of the slider 330 and the guide groove 320. The guide cone tooth 331 on the floating key 33 pushes the guide block 351 to move in the guide groove 320. The guide block 351 drives the limit gear 35 to move. The limit gear 35 overcomes the elastic force of the return spring 39 and drives the limit pin 38 to move, so that the limit pin 38 enters the lock hole 26 until the guide block 351 is separated from the guide groove 320 (as shown in FIG. Figure 7), at this time, the guide cone tooth 331 pushes the guiding inclined surface 352, so as to further push the limiting gear 35 to rotate. The guide block 351 drives the limiting gear 35 to rotate. Under the guiding action of the release guide rail 322, the guide block 351 enters the high-position locking guide rail 321. At this time, the height of the limiting gear 35 is fixed; press the floating key 33 again. The guide cone tooth 331 on the floating key 33 pushes the guiding inclined surface 352, and then the limiting gear 35 moves and rotates after moving, so that the guide block 351 on the limiting gear 35 enters the action guide groove 320 after passing through the release guide rail 322. The return spring 39 pushes the limit pin 38 and the limiting gear 35, so that the limit pin 38 disengages from the locking hole 26; by repeatedly pressing the floating key 33, the guide block 351 can change positions on the action guide groove 320, the high-position locking guide rail 321 and the release guide rail 322 in sequence.

[0030] As Figures 3 - 9 shown, as a preferred embodiment of the present invention, the locking group 30 further includes a nut 34 and a ejector rod 36. The ejector rod 36 passes through the limiting gear 35 and is threadedly connected to the nut 34. The end of the ejector rod 36 abuts against the limit pin 38.

[0031] In the embodiment of the present invention, by arranging the ejector rod 36 and the nut 34, it is convenient to push the limiting gear 35 and keep the limiting gear 35 and the floating key 33 coaxial.

[0032] As Figure 1 shown, as a preferred embodiment of the present invention, one end of the limit pin 38 is provided with an enlarged end 380. An enlarged groove portion 180 is provided at one end of the perforation 18 located on the fixed seat 31. Both ends of the return spring 39 are in contact with the enlarged end 380 and the enlarged end 380 respectively.

[0033] As Figure 1 shown, as a preferred embodiment of the present invention, the fixed seat 31 is fixed on the oil pump base 10 through at least one locking member 310.

[0034] In the above embodiment of the present invention, a parking structure with a limiting function is provided. When holding the brake handle 20, the brake handle 20 pulls the push rod 17, the push rod 17 pulls the piston 15, the piston 15 overcomes the elastic force of the elastic member 16 and moves, and the hydraulic oil in the oil pump base 10 is pressed into the brake oil circuit to produce the braking effect. At this time, the limit pin 38 and the locking hole 26 are in a coaxial state. Press the floating key 33, and the floating key 33 moves into the mounting hole 311 under the guiding action of the slider 330 and the action guide groove 320. The guide cone tooth 331 on the floating key 33 pushes the guide block 351 to move in the action guide groove 320. The guide block 351 drives the limiting gear 35 to move. The limiting gear 35 drives the limit pin 38 to move against the elastic force of the return spring 39, so that the limit pin 38 enters the locking hole 26 until the guide block 351 disengages from the action guide groove 320 (as Figure 7), at this time, the guide cone tooth 331 pushes the guiding inclined surface 352, so as to further push the limit gear 35 to rotate. The guide block 351 drives the limit gear 35 to rotate. The guide block 351 enters the high-position locking guide rail 321 under the guiding action of the release guide rail 322. At this time, the height of the limit gear 35 is fixed, serving the function of generating parking after braking. When the movement restriction of the brake handle 20 is released, the floating key 33 is pressed again. The guide cone tooth 331 on the floating key 33 pushes the guiding inclined surface 352, and then the limit gear 35 moves and rotates after moving, so that the guide block 351 on the limit gear 35 enters the working guide groove 320 after passing through the release guide rail 322. The return spring 39 pushes the limit pin 38 and the limit gear 35, so that the limit pin 38 disengages from the lock hole 26. The elastic member 16 pulls the piston 15 to move reversely and reset, so that the hydraulic oil enters the oil pump base 10 again. This application needs to repeatedly press the locking group 30 to achieve the actions of executing parking and releasing parking, and generate the function of pseudo-locking restriction, so as to avoid accidentally releasing the parking state during parking and ensure safety during parking; This application can complete the actions of executing parking and releasing parking simply and quickly, not only having the effect of convenient operation, but also enhancing its practicability.

[0035] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A limiting parking structure, comprising an oil pump base body, a brake handle is rotatably connected to the oil pump base body, a piston chamber is arranged on the oil pump base body, the piston chamber is connected to the brake oil circuit of the vehicle, an elastic member is arranged in the piston chamber, a piston is slidably connected in the piston chamber, the end of the elastic member abuts against the piston, and a fixing member for fixing the oil pump base body on the vehicle handle is arranged on the oil pump base body, characterized in that , further comprising: a push rod ball-jointed at one end of the piston, a mandrel hole is provided on the brake handle, a push rod mandrel is rotatably connected to the mandrel hole, and the end of the push rod is threadedly connected to the push rod mandrel; a perforation is provided on the oil pump base body, a lock hole is provided at the end of the push rod mandrel, and a limit pin penetrates through the perforation; a locking group is provided on the oil pump base body, the locking group controls the movement of the brake handle by controlling the insertion of the limit pin into the lock hole, and the locking group includes a fixed seat, a floating key, a nut, a limit gear, a push rod and a return spring. The fixed seat is fixed on the oil pump base body, and an installation hole corresponding to the perforation is provided on the fixed seat. At least two spiral turning teeth are evenly provided on the inner wall of the installation hole. The spiral turning teeth include an action guide groove, a high-position locking guide rail and a release guide rail. The release guide rail is communicated with the action guide groove. The floating key is arranged in the installation hole. A slider corresponding to the action guide groove is fixed on the side wall of the floating key. A guide cone tooth twice the number of the spiral turning teeth is arranged on the top surface of the floating key. A receiving groove is arranged at one end of the floating key where the guide cone tooth is located. The limit gear is movably arranged at one end of the floating key where the receiving groove is located. Guide blocks equal in number to the spiral turning teeth are arranged on the limit gear. A guiding inclined surface for cooperating with the guide cone tooth is arranged on the guide block. The return spring is sleeved on the limit pin, and an enlarged end is arranged at one end of the limit pin close to the limit gear.

2. The restrictive parking structure according to claim 1, characterized in that , the fixing member is a tightening member, the tightening member includes a fixed part and a movable part, semi-circular grooves are provided on both the fixed part and the movable part, the fixed part is fixed on the oil pump base body, and the movable part is connected to the fixed part by a bolt.

3. The restrictive parking structure according to claim 1, wherein , a pivot ear seat is fixed on the oil pump base body, a pivot hole is provided on the brake handle, a pivot shaft is rotatably connected to the pivot hole, and the pivot shaft is rotatably connected to the pivot ear seat.

4. The restrictive parking structure according to claim 1, wherein , the locking group further includes a nut and a push rod, the push rod passes through the limit gear and is threadedly connected to the nut, and the end of the push rod abuts against the limit pin.

5. The restrictive parking structure according to claim 1, characterized in that , one end of the limit pin is provided with an enlarged end, an enlarged groove part is provided at one end of the perforation where the fixed seat is located, and both ends of the return spring are in contact with the enlarged end and the enlarged end respectively.

6. The restrictive parking structure according to claim 1, wherein , the fixed seat is fixed on the oil pump base body by at least one locking member.

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