Parking mechanism for vehicle

Abstract

The utility model discloses a vehicle parking mechanism which comprises a fixed support, and a hand brake pull rod is movably connected to the upper portion of the fixed support. A limiting clamping plate is arranged at one end, close to the movable groove, of the mounting cavity; a pawl and a driving gear are arranged on the side, close to the fixed support, of the limiting clamping plate, and an arc-shaped ratchet part is arranged on the outer side edge of the fixed support. A button is arranged at the end, away from the limiting clamping plate, of the mounting cavity and connected with the limiting clamping plate through a push rod. According to the parking mechanism, the movable groove is movably connected with the fixed support, and the limiting clamping plate and the supporting plate are flexibly assembled, so that shaking caused by a fit clearance between the pawl and the ratchet is effectively avoided, and the stability and durability of the parking mechanism are remarkably improved; the driving gear is introduced to be matched with the arc-shaped ratchet part, so that smooth and reliable meshing between the pawl and the fixed support is achieved, the possibility of abnormal sound is reduced, and more reliable and comfortable parking experience is provided for a driver.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a vehicle parking mechanism. Background Art

[0002] The parking brake, commonly known as the handbrake, provides the necessary resistance when the vehicle is parked, effectively preventing it from sliding. Traditional handbrake mechanisms rotate via a support, with the housing tightly wrapped around the outside of the support and rivets providing a flexible, rotating connection between the two. The entire handbrake mechanism is securely mounted to the vehicle via the support. In existing designs, the handbrake is typically connected to the pawl via a hook at the end of a metal rod. A return spring, mounted on the metal rod, is located at the grip of the housing, providing both a reset function and ensuring the pawl engages securely with the ratchet teeth on the support.

[0003] However, the existing design has a significant flaw: when the parking brake is applied, the metal rod drives the pawl completely apart from the ratchet on the support. This design creates a gap between the pawl and ratchet. Over time, the pawl and ratchet fit can loosen, causing wobble. This can not only cause unusual noises and affect the driving experience, but can also be inconvenient and reduce the reliability and safety of the parking system. Summary of the Invention

[0004] The purpose of the present utility model is to provide a vehicle parking mechanism to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a parking mechanism for a vehicle, comprising a fixed support, wherein a handbrake lever is movably connected to the upper portion of the fixed support; a support plate is provided at one end of the handbrake lever near the fixed support, wherein a movable groove is provided at the lower end of the support plate along its circumference, and the upper end of the fixed support is arranged in the movable groove and movably connected thereto; a mounting cavity is provided in the handbrake lever, wherein an open groove is provided at the lower end of the handbrake lever along its length, which is in communication with the mounting cavity, and the open groove is in communication with the movable groove near one end of the support plate; the mounting cavity A limit card plate is provided near one end of the movable groove, wherein the limit card plate is located at the front end of the fixed support; the limit card plate is arranged in the movable groove, wherein the limit card plate is movably connected to the support plate; a pawl and a driving gear are respectively provided on the side of the limit card plate close to the fixed support, wherein the outer edge of the fixed support is provided with an arc-shaped ratchet portion adapted to the pawl and the driving gear; the pawl is arranged below the limit card plate, wherein the driving gear is arranged above the limit card plate; a button is provided at the end of the installation cavity away from the limit card plate, wherein the button is connected to the limit card plate through a push rod.

[0006] Preferably, an annular limiting plate is provided at one end of the installation cavity away from the limiting clamping plate, wherein a button is provided at the front end of the annular limiting plate, and a reset spring is provided between the button and the annular limiting plate.

[0007] Preferably, one end of the push rod is fixedly connected to the limiting clamping plate, wherein the other end of the push rod passes through the annular limiting plate and is fixedly connected to the button.

[0008] Preferably, a first pin hole is provided in the middle of the limiting clamping plate, wherein a second pin hole corresponding to the first pin hole is provided on the supporting plate, and pin shafts are installed in the first pin hole and the second pin hole.

[0009] Preferably, the driving gear is fixedly connected to the limiting clamping plate via a gear fixing seat, wherein the driving gear is adapted to the arc-shaped ratchet portion.

[0010] Preferably, an arc-shaped sliding hole is provided on the fixed support, wherein a limiting hole is provided on the support plate at a position corresponding to the arc-shaped sliding hole; a limiting sliding rod is provided in the limiting hole, wherein the limiting sliding rod passes through the arc-shaped sliding hole and slides along its opening direction.

[0011] Preferably, the outer side wall of the support plate is fixedly connected with a traction plate, wherein the periphery of the traction plate is bent upward to form a fixing groove, and a brake rope is installed in the fixing groove.

[0012] Preferably, a protective handle is provided on the outer wall of the handbrake lever at one end away from the support plate, wherein the protective handle is provided with anti-slip patterns.

[0013] Compared with the prior art, the present invention has the following beneficial effects: the present invention ensures the stability and accuracy of the handbrake lever during operation by designing the movable connection between the movable groove and the fixed support, and the flexible assembly of the limit card plate and the support plate, effectively avoids the shaking caused by the matching gap between the pawl and the ratchet, and significantly improves the stability and durability of the parking mechanism; by introducing the matching of the driving gear and the arc-shaped ratchet part, the accuracy of smooth and reliable meshing between the pawl and the fixed support is achieved. This design not only reduces the direct impact in the traditional design, but also improves the The smoothness and precision of operation reduce the possibility of abnormal noise; the combined design of the button and the push rod allows users to easily unlock and lock the parking mechanism. At the same time, the setting of the reset spring ensures the automatic reset of the handbrake lever after release, improving the convenience and safety of use; the limit card and the support plate are connected by a pin shaft, and the sliding limit of the limit slide rod in the arc-shaped slide hole enhances the overall structural strength of the parking mechanism, prevents accidental unlocking due to external force, further improves the safety of the vehicle when parking, and provides the driver with a more reliable and comfortable parking experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2It is a schematic diagram of the explosion structure of the utility model;

[0016] Figure 3 This is a structural diagram of the limit card plate of the utility model;

[0017] Figure 4 It is a structural diagram of a handbrake pull rod of the utility model.

[0018] Among them: 1. Fixed support; 2. Handbrake lever; 3. Support plate; 4. Movable slot; 5. Mounting cavity; 6. Opening slot; 7. Limiting card plate; 8. Ratchet; 9. Driving gear; 10. Arc-shaped ratchet portion; 11. Button; 12. Push rod; 13. Annular limiting plate; 14. Reset spring; 15. First pin hole; 16. Second pin hole; 17. Pin shaft; 18. Gear fixing seat; 19. Arc-shaped sliding hole; 20. Limiting hole; 21. Limiting slide rod; 22. Traction plate; 23. Fixed slot; 24. Brake rope; 25. Protective handle. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below with reference to the accompanying drawings.

[0020] Please refer to Figures 1 to 4 To achieve the above objectives, the present invention provides the following technical solutions:

[0021] A parking mechanism for a vehicle includes a fixed support 1, wherein a handbrake lever 2 is movably connected to the upper portion of the fixed support 1; a support plate 3 is provided at one end of the handbrake lever 2 near the fixed support 1, wherein a movable groove 4 is provided at the lower end of the support plate 3 along its circumference, and the upper end of the fixed support 1 is arranged in the movable groove 4 and movably connected thereto; a mounting cavity 5 is provided in the handbrake lever 2, wherein an open groove 6 communicating with the mounting cavity 5 is provided at the lower end of the handbrake lever 2 along its length, and the open groove 6 is communicated with the movable groove 4 near one end of the support plate 3; a limiting card plate 7 is provided at one end of the mounting cavity 5 near the movable groove 4 , wherein the limiting card plate 7 is located at the front end of the fixed support 1; the limiting card plate 7 is arranged in the movable groove 4, wherein the limiting card plate 7 is movably connected to the support plate 3; the limiting card plate 7 is respectively provided with a pawl 8 and a driving gear 9 on the side close to the fixed support 1, wherein the outer edge of the fixed support 1 is provided with an arc-shaped ratchet portion 10 adapted to the pawl 8 and the driving gear 9; the pawl 8 is arranged below the limiting card plate 7, wherein the driving gear 9 is arranged above the limiting card plate 7; a button 11 is provided at the end of the installation cavity 5 away from the limiting card plate 7, wherein the button 11 is connected to the limiting card plate 7 through a push rod 12.

[0022] The fixed support 1 is the basic component of the parking mechanism. The fixed support 1 is firmly installed on the vehicle to provide stable support; the handbrake lever 2 is the operable part, which is movably connected to the fixed support 1 through sliding fit, allowing the user to pull or release the handbrake in the vehicle; a support plate 3 is fixedly connected to one end of the handbrake lever 2 close to the fixed support 1, and the support plate 3 is an important component connecting the handbrake lever 2 and the fixed support 1; the lower end of the support plate 3 is provided with a movable groove 4 along its circumference, and the shape and size of the groove are the same as those of the fixed support 1. The upper end of the fixed support 1 matches so that the upper end of the fixed support 1 can be inserted into and move in this groove; a mounting cavity 5 is provided inside the handbrake lever 2, and this cavity is used to accommodate key components such as a limit card plate 7, a pawl 8, and a driving gear 9; the lower end of the handbrake lever 2 is provided with an open groove 6 connected to the mounting cavity 5 along its length direction, and the end of this groove close to the support plate 3 is connected to the movable groove 4, providing space for the movement of components such as the limit card plate 7 and the pawl 8; the mounting cavity 5 is provided with a limit card plate 7 at one end close to the movable groove 4, which A card plate is used to limit the range of motion of the pawl 8 and the driving gear 9. It is also a key component connecting the push rod 12 and the button 11. A pawl 8 is provided on the lower side of the limiting card plate 7 close to the fixed support 1. This pawl 8 can mesh with the arc-shaped ratchet portion 10 on the outer side of the fixed support 1 to achieve the parking function. A driving gear 9 is provided on the upper side of the limiting card plate 7 close to the fixed support 1. This gear can adapt to the arc-shaped ratchet portion 10 on the fixed support 1 and drive the meshing or separation with the arc-shaped ratchet portion 10 by rotation, thereby The stability of the limit card plate 7 is improved, and the limit card plate 7 is prevented from shaking after driving the pawl 8 to separate from the arc-shaped ratchet portion 10, thereby reducing the possibility of abnormal noise. A button 11 is provided at the end of the installation cavity 5 away from the limit card plate 7. This button 11 is the main interface for the user to operate the parking mechanism. The button 11 is connected to the limit card plate 7 through a push rod 12. When the user presses the button 11, the push rod 12 will push the limit card plate 7 to move, thereby driving the pawl 8 and the driving gear 9 to engage or separate with the arc-shaped ratchet portion 10 on the fixed support 1.

[0023] Please refer to Figure 2 、 Figure 4 As an embodiment of the present utility model, an annular limiting plate 13 is provided at one end of the installation cavity 5 away from the limiting card plate 7, wherein a button 11 is provided at the front end of the annular limiting plate 13, and a reset spring 14 is provided between the button 11 and the annular limiting plate 13; one end of the push rod 12 is fixedly connected to the limiting card plate 7, wherein the other end of the push rod 12 passes through the annular limiting plate 13 and is fixedly connected to the button 11.

[0024] In the above-mentioned scheme, the annular limit plate 13 is a circular or annular plate located at the end of the installation cavity 5 away from the limit card plate 7. It is fixed on the wall of the installation cavity 5 and mainly serves to limit the movement range of the push rod 12; the design of the annular limit plate 13 ensures that the push rod 12 will not move excessively when subjected to external force, thereby protecting the parts inside the parking mechanism from damage; the button 11 is installed at the front end of the annular limit plate 13 and is the main component for the user to interact with the parking mechanism. The user starts or releases the parking mechanism by pressing the button 11. The design of the button 11 needs to take ergonomics into consideration to ensure that the user can operate it easily and comfortably; the return spring 14 is arranged between the button 11 and the annular limit plate 13, and one end of it is connected to the button 11, and the other end is connected to the annular limit plate 13 or the wall of the installation cavity 5. The main function of the reset spring 14 is to restore the button 11 and the push rod 12 to their initial positions after the user releases the button 11; in this way, when the parking mechanism is released, the pawl 8 and the driving gear 9 can automatically separate from the arc-shaped ratchet portion 10, preparing for the next parking operation; the push rod 12 is a slender rod, one end of which is fixedly connected to the limit card plate 7, and the other end passes through the annular limit plate 13 and is fixedly connected to the button 11; the push rod 12 plays a role of transmitting force in the parking mechanism. When the user presses the button 11, the push rod 12 will transmit this force to the limit card plate 7, thereby driving the pawl 8 and the driving gear 9 to engage or separate with the arc-shaped ratchet portion 10.

[0025] When the user needs to park the car, he presses the button 11, and the button 11 overcomes the elastic force of the return spring 14 and moves downward, while driving the push rod 12 to move downward. The movement of the push rod 12 will push the limit card 7 to rotate around the pin shaft 17, thereby driving the pawl 8 to separate from the arc-shaped ratchet portion 10. At the same time, the driving gear 9 above the limit card 7 will approach the arc-shaped ratchet portion 10 and engage. As the handbrake lever 2 moves upward, the driving gear 9 will rotate along the arc-shaped ratchet portion 10. This design not only reduces the direct impact in the traditional design, but also improves the smoothness and accuracy of the operation through the transmission of the driving gear 9, avoids the shaking of the limit card 7, and reduces the possibility of abnormal noise.

[0026] See also Figure 2 As an embodiment of the present invention, a first pin hole 15 is provided in the middle of the limiting card plate 7, wherein a second pin hole 16 corresponding to the first pin hole 15 is provided on the support plate 3, and a pin shaft 17 is installed in the first pin hole 15 and the second pin hole 16.

[0027] In the above-described scheme, the pin 17 is a slender shaft member that is usually cylindrical or conical. In the parking mechanism, the pin 17 plays the role of fixing the limit card plate 7 to the support plate 3 while allowing it to move within a certain range; the first pin hole 15 is a hole opened in the middle of the limit card plate 7, and its position, size and shape are determined according to the design of the pin 17. The main function of the first pin hole 15 is to accommodate the pin 17 and be connected to the support plate 3 through the pin 17; the second pin hole 16 is a hole opened on the support plate 3 corresponding to the first pin hole 15, and its position, size and shape need to match the first pin hole 15 to ensure that the pin 17 can smoothly pass through the two holes and fix the limit card plate 7 on the support plate 3; the installation of the pin 17 not only realizes the fixed connection between the limit card plate 7 and the support plate 3, but also allows the limit card plate 7 to move within a certain range on the support plate 3; this design enables the parking mechanism to flexibly respond to user instructions during operation while maintaining sufficient stability and reliability.

[0028] Please refer to Figure 2 、 Figure 3 As an embodiment of the present utility model, a driving gear 9 is provided at the upper end of the limiting card plate 7 close to the arc-shaped ratchet portion 10, wherein the driving gear 9 is fixedly connected to the limiting card plate 7 through a gear fixing seat 18, and the driving gear 9 is adapted to the arc-shaped ratchet portion 10.

[0029] In the above-mentioned scheme, the driving gear 9 is a gear with a specific tooth shape and module, wherein the driving gear 9 is mounted on the upper end of one side of the limiting card plate 7 near the arc-shaped ratchet portion 10; the main function of the driving gear 9 is to transmit the force and movement from the push rod 12, and to realize the parking and release of the parking mechanism by engaging or disengaging with the arc-shaped ratchet portion 10; the main function of the gear fixing seat 18 is to firmly mount the driving gear 9 on the limiting card plate 7 to ensure that it will not loosen or fall off during operation; at the same time, the gear fixing seat 18 also needs to provide sufficient support and rigidity for the driving gear 9 to withstand the reaction force and movement from the arc-shaped ratchet portion 10; the arc-shaped ratchet portion 10 is a toothed portion of a specific shape and size on the fixed support 1, and the arc-shaped ratchet portion 10 is adapted to the driving gear 9, wherein the design of the arc-shaped ratchet portion 10 generally takes into account the working principle, use environment and requirements of the parking mechanism to ensure that the engagement and disengagement operations with the driving gear 9 can be carried out smoothly and reliably.

[0030] Please refer to Figure 1 、 Figure 2 As an embodiment of the present utility model, an arc-shaped sliding hole 19 is provided on the fixed support 1, wherein a limiting hole 20 is provided on the support plate 3 at a position corresponding to the arc-shaped sliding hole 19; a limiting sliding rod 21 is provided in the limiting hole 20, wherein the limiting sliding rod 21 passes through the arc-shaped sliding hole 19 and slides along its opening direction.

[0031] In the above-mentioned scheme, the arc-shaped sliding hole 19 is a through hole of a specific shape and size opened on the fixed support 1, wherein the main function of the arc-shaped sliding hole 19 is to provide a sliding path, allowing the limiting slide bar 21 to slide smoothly inside it along the opening direction; this design ensures that the parking mechanism can flexibly respond to the user's instructions during operation while maintaining sufficient stability and reliability; the limiting hole 20 is a hole opened on the support plate 3 corresponding to the arc-shaped sliding hole 19, and its position, size and shape need to match the arc-shaped sliding hole 19 to ensure that the limiting slide bar 21 can smoothly pass through it. two holes and slide; the main function of the limiting hole 20 is to limit the movement range of the limiting slide bar 21 to prevent it from exceeding the predetermined position during the sliding process, thereby ensuring that the parking mechanism can correctly perform the parking and release operations; the limiting slide bar 21 is a slender and usually cylindrical or square rod, which passes through the arc-shaped sliding hole 19 and the limiting hole 20 and slides along the opening direction thereof; the main function of the limiting slide bar 21 is to connect the support plate 3 and the fixed support 1, and at the same time transmit the force and movement from the push rod 12. Through the sliding of the limiting slide bar 21, the parking mechanism can realize the switching between the parking and release states.

[0032] See also Figure 2 As an embodiment of the present invention, the outer wall of the support plate 3 is fixedly connected to a traction plate 22 , wherein the periphery of the traction plate 22 is bent upward to form a fixing groove 23 , and a brake rope 24 is installed in the fixing groove 23 .

[0033] In the above-described scheme, the traction plate 22 is a plate-like structure fixedly connected to the outer wall of the support plate 3. It usually has a certain strength and rigidity to withstand the tension from the brake rope 24 and other possible external forces. The main function of the traction plate 22 is to provide a connection point for installing and fixing the brake rope 24, thereby ensuring that the parking mechanism can brake quickly and effectively when needed. The fixing groove 23 is a groove-like structure formed by bending the periphery of the traction plate 22 upward. It usually has a shape and size that matches the brake rope 24. The main function of the fixing groove 23 is to provide a safe channel for accommodating and fixing the brake rope 24 to prevent it from being pulled during operation. Loosening or falling off; at the same time, the design of the fixing groove 23 can also ensure that the brake rope 24 can be evenly distributed on the traction plate 22 when subjected to tension, thereby avoiding local overload and damage; the brake rope 24 is a high-strength, wear-resistant rope, which is usually installed in the fixing groove 23 and connected to other parts of the parking mechanism (such as wheels or brakes); the main function of the brake rope 24 is to transmit braking force. When the parking mechanism needs to brake, the brake rope 24 will be tightened to achieve braking effect on the wheel; the material and manufacturing process of the brake rope 24 need to meet the working environment and requirements of the parking mechanism to ensure that it has sufficient strength and durability during use.

[0034] Please refer to Figure 1 、 Figure 2 As an embodiment of the present invention, a protective handle 25 is provided on the outer wall of the handbrake lever 2 away from the support plate 3, wherein the protective handle 25 is provided with anti-slip lines.

[0035] In the above-mentioned scheme, the protective handle 25 is a gripping component fixed to the end of the handbrake rod 2 away from the support plate 3. It is usually made of soft and durable materials, such as rubber or plastic. The main function of the protective handle 25 is to provide a comfortable gripping surface to reduce the pressure and discomfort on the user's hands during long-term use or emergency braking; at the same time, it can also prevent the hand from directly contacting the metal part of the handbrake rod 2 to a certain extent, avoiding potential risks such as scratches or frostbite; the anti-slip pattern is a special texture engraved on the surface of the protective handle 25, which usually appears as raised dots, lines or grid patterns. The main function of the anti-slip pattern is to increase the friction between the hand and the protective handle 25 to prevent unstable grip due to sweating, greasy or wet hands during operation; by providing stronger grip, the anti-slip pattern can ensure that the user can quickly and accurately control the handbrake rod 2 in an emergency, thereby ensuring driving safety.

[0036] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A parking mechanism for a vehicle, comprising a fixed support (1), wherein a handbrake lever (2) is movably connected to the upper portion of the fixed support (1); characterized in that: The handbrake lever (2) is provided with a support plate (3) near one end of the fixed support (1), wherein the lower end of the support plate (3) is provided with a movable groove (4) along its circumference, and the upper end of the fixed support (1) is arranged in the movable groove (4) and is movably connected thereto; a mounting cavity (5) is provided in the handbrake lever (2), wherein the lower end of the handbrake lever (2) is provided with an open groove (6) along its length that is communicated with the mounting cavity (5), and the open groove (6) is communicated with the movable groove (4) near one end of the support plate (3); a limiting card plate (7) is provided at one end of the mounting cavity (5) that is close to the movable groove (4), wherein the limiting card plate (7) is located at the front end of the fixed support (1); the limiting card plate (7) is provided ... The card plate (7) is arranged in the movable groove (4), wherein the limiting card plate (7) is movably connected to the support plate (3); the limiting card plate (7) is respectively provided with a ratchet (8) and a driving gear (9) on the side close to the fixed support (1), wherein the outer side of the fixed support (1) is provided with an arc-shaped ratchet portion (10) adapted to the ratchet (8) and the driving gear (9); the ratchet (8) is arranged below the limiting card plate (7), wherein the driving gear (9) is arranged above the limiting card plate (7); the installation cavity (5) is provided with a button (11) at one end away from the limiting card plate (7), wherein the button (11) is connected to the limiting card plate (7) through a push rod (12).

2. A vehicle parking mechanism according to claim 1, characterized in that: An annular limiting plate (13) is provided at one end of the installation cavity (5) away from the limiting clamping plate (7), wherein a button (11) is provided at the front end of the annular limiting plate (13), and a reset spring (14) is provided between the button (11) and the annular limiting plate (13).

3. The vehicle parking mechanism according to claim 1, characterized in that: One end of the push rod (12) is fixedly connected to the limiting clamping plate (7), wherein the other end of the push rod (12) passes through the annular limiting plate (13) and is fixedly connected to the button (11).

4. The vehicle parking mechanism according to claim 2, characterized in that: A first pin hole (15) is provided in the middle of the position-limiting clamping plate (7), a second pin hole (16) corresponding to the first pin hole (15) is provided on the support plate (3), and pin shafts (17) are installed in the first pin hole (15) and the second pin hole (16).

5. The vehicle parking mechanism according to claim 1, characterized in that: The driving gear (9) is fixedly connected to the limiting clamping plate (7) via a gear fixing seat (18), wherein the driving gear (9) is adapted to the arc-shaped ratchet portion (10).

6. The vehicle parking mechanism according to claim 1, characterized in that: An arc-shaped sliding hole (19) is provided on the fixed support (1), wherein a limiting hole (20) is provided on the support plate (3) at a position corresponding to the arc-shaped sliding hole (19); a limiting sliding rod (21) is provided in the limiting hole (20), wherein the limiting sliding rod (21) passes through the arc-shaped sliding hole (19) and slides along the opening direction thereof.

7. The vehicle parking mechanism according to claim 1, characterized in that: The outer side wall of the support plate (3) is fixedly connected with a traction plate (22), wherein the periphery of the traction plate (22) is bent upward to form a fixing groove (23), and a brake rope (24) is installed in the fixing groove (23).

8. The vehicle parking mechanism according to claim 1, characterized in that: A protective handle (25) is provided on the outer wall of one end of the handbrake lever (2) away from the support plate (3), wherein the protective handle (25) is provided with anti-slip lines.

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