Parking mechanism and vehicle

Abstract

The utility model discloses a parking mechanism and a vehicle, the parking mechanism comprises a brake caliper, a brake disc, a parking rocker arm and a driving piece, and the brake caliper is provided with a containing space; the brake disc is partially located in the containing space of the brake caliper, and a plurality of clamping blocks are arranged on the disc face of the brake disc. The parking rocker arm comprises a rocker arm body and a clamping jaw connected with the rocker arm body, the rocker arm body comprises a first end part and a second end part which are oppositely arranged, the first end part is arranged in the accommodating space and is rotatably connected with the brake caliper, and the clamping jaw is connected with the second end part; and the driving piece is connected with the rocker arm body and used for driving the rocker arm body to rotate, so that the clamping jaws are clamped between the two adjacent clamping blocks or separated from the two adjacent clamping blocks, and in this way, the reliability of the parking structure can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a parking mechanism and a vehicle. BACKGROUND

[0002] As an important part of vehicle safety performance, the main function of the parking brake system is to ensure that the vehicle can remain stable when parking on a slope or stopping, prevent the vehicle from sliding accidentally, and thus ensure driving safety. With the continuous development of automobile technology, the parking brake system has also undergone evolution from traditional to modern. Traditionally, parking brake mainly relies on mechanical pull wire mechanism to realize. The mechanical pull wire parking brake needs to be manually operated by the driver, and the operation process is relatively cumbersome. In order to overcome the shortcomings of traditional mechanical pull wire parking brake, electronic parking brake system emerges as the times require. The electronic parking brake system realizes the electronic control of the parking function by integrating the key components such as friction plate, brake disc and brake cylinder of the service brake. However, the electronic parking brake system still has some problems in practical application. In the long-term research and development process, the applicant of the present application found that when the key components such as friction plate and brake disc in the electronic parking brake system are worn due to normal use, it will cause the instability of system parameters, that is, there is a defect of insufficient reliability. CONTENT OF THE UTILITY MODEL

[0003] The technical problem solved by the present application is to provide a parking mechanism and a vehicle, which can improve the reliability of the parking structure.

[0004] To solve the above technical problems, one technical scheme adopted by the present application is to provide a parking mechanism, comprising: a brake caliper provided with a containing space; a brake disc partially located in the containing space of the brake caliper, and a plurality of clamping blocks are provided on the disc surface of the brake disc; a parking rocker arm comprising a rocker arm body and a clamping jaw connected with the rocker arm body, the rocker arm body comprises a first end portion and a second end portion arranged oppositely, the first end portion is arranged in the containing space and is rotatably connected with the brake caliper, and the clamping jaw is connected with the second end portion; and a driving member connected with the rocker arm body, used for driving the rocker arm body to rotate, so that the clamping jaw is clamped between or separated from adjacent two clamping blocks.

[0005] Among them, the rocker arm body comprises a first side and a second side arranged oppositely in a first direction, the first direction is perpendicular to the extension direction of the rocker arm body, the clamping jaw is arranged on the first side of the rocker arm body, and the driving member is arranged on the second side of the rocker arm body. The driving member comprises: a sliding seat arranged on the brake caliper; and a connecting rod, one end of which is slidably arranged on the sliding seat, and the other end of which is connected with the rocker arm body.

[0006] The first end of the rocker body is provided with a shaft hole; the parking mechanism further comprises a pin shaft, which is arranged in the shaft hole and fixedly connected with the brake caliper at both ends.

[0007] The parking mechanism further comprises an elastic member arranged on the second side of the rocker body and connecting the rocker body and the brake caliper, and the elastic member is in a stretched state when the claw is clamped between two adjacent clamping blocks.

[0008] The elastic member comprises a tension spring.

[0009] The claw is provided with a rubber sleeve.

[0010] The rocker body and the claw are integrally formed.

[0011] The number of the claws is multiple, the multiple claws are connected with the second end of the rocker body and arranged at intervals in the extension direction of the rocker body, and each of the claws is used for clamping between two adjacent clamping blocks.

[0012] In the direction close to the first end of the rocker body, the length of the claw increases.

[0013] To solve the above technical problems, another technical solution adopted by the present application is to provide a vehicle comprising the parking mechanism according to any one of the above.

[0014] The beneficial effects of the present application are as follows: Different from the prior art, in the present application, the parking rocker of the parking mechanism is connected with the brake caliper, the claw of the parking rocker cooperates with the clamping block on the brake disc to form a clamping structure, the parking rocker is fixed on the brake disc, the parking mechanism is in a locked state, after the claw of the parking rocker extends out of the clamping block on the brake disc, the parking mechanism returns to an unlocked state, the driving member controls the rotation direction of the parking rocker, and the driving member can be controlled by an electric signal, so as to realize electronic control of the locking and unlocking states of the parking structure, the mechanical structure and the electronic control are combined, and the reliability of the parking mechanism is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0016] Figure 1 is a structural schematic diagram of an embodiment of the brake mechanism of the present application;

[0017] Figure 2 isFigure 1 An exploded view of the braking mechanism;

[0018] Figure 3 Is Figure 1 A sectional view of the brake disc and brake caliper;

[0019] Figure 4 Is Figure 3 A partial enlarged view at A;

[0020] Figure 5 Is Figure 4 A structural schematic view of the parking rocker arm;

[0021] Figure 6 Is Figure 4 A structural schematic view of the driving member. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0023] In the prior art, the mechanical parking structure is simple and reliable in operation, low in cost and mature in structure, but occupies the space in the vehicle and lacks intelligent functions, and the operation is not convenient in some situations. In contrast, the electronic braking mechanism provides higher convenience and safety through intelligent control, can automatically park or automatically release the brake, saves space, but is higher in cost and has the risk of electronic failure. To solve the above problems, the present application combines the mechanical parking structure and the electronic parking mechanism to propose the following technical solutions.

[0024] Referring to Figures 1 to 4 , the parking mechanism 1 includes a brake caliper 10, a brake disc 20, a parking rocker arm 30 and a driving member 40.

[0025] The brake caliper 10 is provided with a containing space 11, and the brake disc 20 is partially located in the containing space 11 of the brake caliper 10. The brake disc 20 is provided with a plurality of clamping blocks 210 on the disc surface.

[0026] Specifically, the brake caliper 10 is provided with a containing space 11 for accommodating the brake disc 20. The brake disc 20 is provided with a plurality of clamping blocks 210, and there is a gap between two clamping blocks 210. The plurality of clamping blocks 210 are arranged in a ring shape, and the medium in the gap, such as air, can conduct the heat of the brake disc 20 to the outside of the brake disc 20.

[0027] Referring to Figure 5The parking rocker arm 30 comprises a rocker arm body 310 and a claw 320 connected with the rocker arm body 310, the rocker arm body 310 comprises a first end 311 and a second end 312 arranged oppositely, the first end 311 is arranged in the accommodating space 11 and rotatably connected with the brake caliper 10, and the claw 320 is connected with the second end 312.

[0028] Specifically, the rocker arm body 310 is in a column type structure as a whole, the first end 311 of the rocker arm body 310 is connected with the brake caliper 10, the rocker arm body 310 can rotate around the first end 311 as the rotation center between the brake caliper 10 and the brake disc 20, and the second end 312 of the rocker arm body 310 is provided with the claw 320. Figure 4 As shown in the figure, after the rocker arm body 310 rotates towards the brake disc 20, the claw 320 can be inserted between the two claw blocks 210 of the brake disc 20, and after the rocker arm body 310 rotates towards the brake disc 20, the claw 320 is pulled out from between the two claw blocks 210.

[0029] The driving member 40 is connected with the rocker arm body 310 and used for driving the rocker arm body 310 to rotate, so that the claw 320 is inserted between or separated from the adjacent two claw blocks 210.

[0030] Specifically, the driving member 40 drives the rocker arm body 310 to rotate towards the brake disc 20, so that the claw 320 can be inserted between the two claw blocks 210 of the brake disc 20, so that the parking mechanism 1 is in the locked state, the driving member 40 drives the rocker arm body 310 to rotate towards the brake caliper 10, so that the claw 320 is separated from the adjacent two claw blocks 210, so that the parking mechanism 1 is in the unlocked state, and the driving member 40 can be controlled by an electric signal, so as to realize the electronic parking function.

[0031] In the present application, the parking rocker arm 30 of the parking mechanism 1 is connected with the brake caliper 10, the claw 320 of the parking rocker arm 30 cooperates with the claw block 210 on the brake disc 20 to form a clamping structure, the parking rocker arm 30 is fixed on the brake disc 20, so that the parking mechanism 1 is in the locked state, after the claw 320 of the parking rocker arm 30 is pulled out from the claw block 210 on the brake disc 20, the parking mechanism 1 returns to the unlocked state, the driving member 40 controls the rotating direction of the parking rocker arm 30, and the driving member 40 can be controlled by an electric signal, so as to realize the electronic control of the locked and unlocked states of the parking mechanism 1, the mechanical structure and the electronic control are combined, and the reliability of the parking mechanism 1 is improved.

[0032] Referring to Figure 5 and Figure 6, the rocker body 310 comprises a first side 313 and a second side 314 oppositely arranged in a first direction X, the first direction X is perpendicular to the extension direction of the rocker body 310, the pawl 320 is arranged on the first side 313 of the rocker body 310, and the driving member 40 is arranged on the second side 314 of the rocker body 310. The driving member 40 comprises a sliding seat 410 and a connecting rod 420, the sliding seat 410 is arranged on the brake caliper 10, and one end of the connecting rod 420 is slidably arranged on the sliding seat 410, and the other end is connected with the rocker body 310.

[0033] Specifically, the connecting rod 420 is slidably arranged relative to the sliding seat 410, and in the extension direction of the connecting rod 420, the connecting rod 420 can slide relative to the sliding seat 410, so that the connecting rod 420 can push the rocker body 310 to rotate. The first side 313 of the rocker body 310 is provided with the pawl 320, and the second side 314 of the rocker body 310 is provided with the driving member 40. The driving member 40 is telescopic to drive the rocker body 310 to rotate, and further drive the pawl 320 to rotate, so that the pawl 320 is clamped between the adjacent two clamping blocks 210 of the brake disc 20 or separated from the adjacent two clamping blocks 210.

[0034] In an embodiment, the second side 314 of the rocker body 310 is provided with a connecting rod mounting seat (not shown in the figure), which is used to mount the connecting rod 420 on the parking rocker 30. The brake caliper 10 is provided with a sliding seat mounting seat (not shown in the figure) on the side facing the parking rocker 30, which is used to mount the sliding seat 410 on the brake caliper 10. The driving member 40 is mounted between the parking rocker 30 and the brake caliper 10 through the connecting rod mounting seat and the sliding seat mounting seat.

[0035] Continuing to refer to Figure 5 , the first end 311 of the rocker body 310 is provided with an axle hole 3110, and the parking mechanism 1 further comprises a pin shaft 50, the pin shaft 50 passes through the axle hole 3110 and both ends are fixedly connected with the brake caliper 10. Specifically, the pin shaft 50 passes through the axle hole 3110 of the rocker body 310, and the parking rocker 30 is fixed on the brake caliper 10, so that the parking rocker 30 rotates around the pin shaft 50.

[0036] Further, in an embodiment, the brake caliper 10 is provided with a mounting hole (not shown in the figure), and the pin shaft 50 passes through the mounting hole at both ends to fix the pin shaft 50 on the brake caliper 10.

[0037] Continuing to refer to Figure 4 , the parking mechanism 1 further comprises a resilient member 60, the resilient member 60 is arranged on the second side 314 of the rocker body 310, and the resilient member 60 connects the rocker body 310 and the brake caliper 10. When the pawl 320 is clamped between the adjacent two clamping blocks 210, the resilient member 60 is in a stretched state.

[0038] Specifically, the elastic member 60 is deformed under the action of an external force and can restore its original shape after the external force is removed. When the pawl 320 of the parking rocker arm 30 is clamped between two adjacent clamping blocks 210, the elastic member 60 is in a stretched state, and the elastic member 60 is also in a stretched state. At this time, the parking mechanism 1 is in a locked state. When it is necessary to change the parking mechanism 1 to an unlocked state, the control driving member 40 is retracted, and the elastic force of the elastic member 60 assists the rotation of the parking rocker arm 30, so that the parking mechanism 1 returns to the unlocked state, reduces the required thrust of the driving member 40, and improves the service life of the driving member 40.

[0039] In an embodiment, the elastic member 60 includes a tension spring. When subjected to a pulling force, the tension spring is elongated and stores a certain elastic potential energy. When the pulling force is removed, the tension spring restores its original shape and releases the stored energy. In this embodiment, when the parking mechanism 1 is in a locked state, the tension spring is in a stretched state. When it is necessary to change the parking mechanism 1 to an unlocked state, the tension spring assists the rotation of the parking rocker arm 30. The tension spring is simple to manufacture and can reduce production costs.

[0040] Of course, in other embodiments, the elastic member 60 can also include a compression spring. Unlike the above-mentioned embodiment, when the parking mechanism 1 is in an unlocked state, the compression spring is in a compressed state. When it is necessary to change the parking mechanism 1 to a locked state, the compression spring assists the rotation of the parking rocker arm 30, thereby facilitating the pushing of the parking rocker arm 30.

[0041] Continuing to refer to Figure 5 The plurality of pawls 320 are connected to the second end portion 312 of the rocker arm body 310 and are arranged at intervals in the extension direction of the rocker arm body 310. Each pawl 320 is used to clamp between two adjacent clamping blocks 210.

[0042] Specifically, the plurality of pawls 320 are arranged at intervals in the extension direction of the rocker arm body 310. The plurality of pawls 320 are clamped between two adjacent clamping blocks 210, thereby improving the bonding strength of the clamping blocks 210 and the pawls 320 and improving the stability of the parking rocker arm 30 and the brake disc 20 when the parking mechanism 1 is in a locked state. The number of pawls 320 can be two, three, or four. It should be noted that the number of pawls 320 is not specifically limited in the present application.

[0043] Continuing to refer to Figure 5 In the direction close to the first end portion 311 of the rocker arm body 310, the length of the pawl 320 increases. Specifically, the length of the pawl 320 close to the first end portion 311 of the plurality of pawls 320 is greater than the length of the pawl 320 away from the first end portion 311, that is, the length of the pawl 320 close to the first end portion 311 is longer. After the parking rocker arm 30 rotates towards the brake disc 20, the pawl 320 close to the first end portion 311 first contacts the clamping block 210, so that the plurality of pawls 320 are uniformly attached to the clamping block 210.

[0044] In an embodiment, the clamping jaw 320 is provided with a chamfer at an end away from the rocker arm body 310, so that friction is reduced when the clamping jaw 320 contacts the clamping block 210.

[0045] With reference to Figure 4 , the clamping jaw 320 is provided with a rubber sleeve 330, and when the clamping jaw 320 is clamped between the two clamping blocks 210, the rubber sleeve 330 on the clamping jaw 320 allows the clamping jaw 320 and the clamping block 210 to be in flexible contact, thereby reducing noise and vibration between the clamping jaw 320 and the clamping block 210.

[0046] In other embodiments, a rubber layer can also be formed on the surface of the clamping jaw 320 to reduce friction and vibration between the clamping jaw 320 and the clamping block 210.

[0047] In an embodiment, the rocker arm body 310 and the clamping jaw 320 are integrally formed. Specifically, when the rocker arm body 310 and the clamping jaw 320 are prepared, the rocker arm body 310 and the clamping jaw 320 are cast as a whole, which can reduce the number of components and improve the strength and stability of the parking rocker arm 30.

[0048] In an embodiment, the rocker arm body 310 and the clamping jaw 320 are made of the same material, which improves the preparation efficiency.

[0049] With reference to Figure 1 , the parking mechanism 1 further includes a steering knuckle 70 connected to the brake disc 20, and the steering knuckle 70 changes the direction of the wheels by rotating. When parking brake is needed, the parking mechanism 1 is in a locked state, and the steering knuckle 70 can be used to change the direction of the wheels to maintain the wheels in a stable state.

[0050] The present application also protects a vehicle including the parking mechanism 1 according to any one of the above embodiments. The vehicle includes a fuel vehicle, an electric vehicle, a hybrid vehicle, and a hydrogen fuel cell vehicle, and of course includes a sedan, a sport utility vehicle, a multi-purpose commercial vehicle, and the like. It should be noted that the type of the vehicle is not limited in the present application. The specific structure of the parking mechanism 1 is as described above, and will not be repeated here.

[0051] The above is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A parking mechanism, characterized by, The parking mechanism comprises: a brake caliper, which is provided with a receiving space; a brake disc, which is partially located in the receiving space of the brake caliper and is provided with a plurality of clamping blocks on a disc surface thereof; a parking rocker arm, which comprises a rocker arm body and a clamping jaw connected to the rocker arm body, the rocker arm body comprises oppositely arranged first and second end portions, the first end portion is arranged in the receiving space and is rotatably connected to the brake caliper, and the clamping jaw is connected to the second end portion; a driving member, which is connected to the rocker arm body and is used to drive the rocker arm body to rotate so as to make the clamping jaw clamped between or separated from adjacent two clamping blocks.

2. The parking mechanism according to claim 1, characterized in that The rocker arm body comprises a first side and a second side which are oppositely arranged in a first direction, the first direction is perpendicular to an extension direction of the rocker arm body, the clamping jaw is arranged on the first side of the rocker arm body, the driving member is arranged on the second side of the rocker arm body, and the driving member comprises: a sliding seat, which is arranged on the brake caliper; a connecting rod, one end of which is slidably arranged on the sliding seat and the other end of which is connected to the rocker arm body.

3. A parking mechanism according to claim 2, wherein The parking mechanism further comprises: a resilient member, which is arranged on the second side of the rocker arm body, is connected to the rocker arm body and the brake caliper, and is in a stretched state when the clamping jaw is clamped between adjacent two clamping blocks.

4. A parking mechanism according to claim 3, wherein The resilient member comprises a tension spring.

5. The parking mechanism of claim 1, wherein, The first end portion of the rocker arm body is provided with a shaft hole, and the parking mechanism further comprises: a pin shaft, which is arranged through the shaft hole and is fixedly connected to the brake caliper at both ends thereof.

6. The parking mechanism of claim 1, wherein, The number of clamping jaws is plural, the plural clamping jaws are connected to the second end portion of the rocker arm body and are arranged at intervals in the extension direction of the rocker arm body, and each clamping jaw is used to clamp between adjacent two clamping blocks.

7. A parking mechanism according to claim 6, wherein In a direction close to the first end portion of the rocker arm body, the length of the clamping jaw increases.

8. The parking mechanism of claim 1, wherein, The rocker arm body and the clamping jaw are integrally formed.

9. The parking mechanism of claim 1, wherein, The clamping jaw is sleeved with a rubber sleeve.

10. A vehicle characterized by comprising: The parking mechanism comprises any one of claims 1 to 9.

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