Rear axle oil brake disc brake of electric three-four-wheel truck

Abstract

The utility model discloses an electric three-four-wheel truck rear axle oil brake disc brake, and particularly relates to the technical field of brake disc brakes, the electric three-four-wheel truck rear axle oil brake disc brake comprises a brake caliper body, the right side of the brake caliper body is fixedly connected with two locking blocks, the right side of each locking block is provided with a locking groove, and the outer side of the brake caliper body is provided with a protective cover. Two telescopic rods are fixedly connected to the inner side of the protective cover, driving discs are fixedly connected to the ends, close to the locking blocks, of the telescopic rods, springs are fixedly connected to the sides, away from the locking blocks, of the driving discs, locking bolts are fixedly connected to the sides, close to the locking blocks, of the driving discs, and the ends, away from the driving discs, of the springs are fixedly connected with the protective cover; and the locking bolt is inserted into the locking groove. The pull ring pulls the driving sliding block to move backwards, the driving sliding block synchronously drives the two driving discs to move backwards through the linkage plate, at the moment, the telescopic rod and the spring are pressed and contracted, the driving discs drive the locking plug pin to move backwards till the locking plug pin is completely separated from the locking groove, locking of the protective cover is relieved, and the quick disassembling function of the protective cover is achieved.

Description

Technical Field

[0001] This utility model relates to the field of disc brake technology, and more specifically, to the hydraulic disc brake for the rear axle of an electric three- or four-wheeled truck. Background Technology

[0002] The rear axle of electric three- and four-wheeled trucks uses a hydraulic disc brake system, which is the mainstream solution to improve the braking performance and safety of heavy-duty vehicles. The brake caliper guard can block brake dust when the vehicle is in motion, reduce wheel hub contamination, and prevent external impurities such as mud, water and gravel from corroding the calipers.

[0003] The rear axle hydraulic disc brakes of common electric three- and four-wheeled trucks can only protect the brake calipers with protective covers, but they lack the function of quick-release of the protective covers. Although the method of fixing the protective covers with bolts is very strong, in actual use, since a vehicle has three to four protective covers and each protective cover requires multiple bolts, the disassembly of the protective covers when maintaining the brake calipers is very cumbersome, which ultimately reduces the maintenance efficiency.

[0004] In summary, to improve maintenance efficiency, it is necessary to address the issue of the protective cover's inability to be quickly removed, which makes the removal process for the brake caliper extremely cumbersome and reduces maintenance efficiency. Utility Model Content

[0005] The problem that this utility model provides for the rear axle hydraulic disc brake of an electric three- or four-wheeled truck is to solve is that since a vehicle has three to four protective covers and each protective cover requires multiple bolts, the disassembly of the protective covers is very cumbersome when maintaining the brake calipers.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rear axle hydraulic disc brake for an electric three- or four-wheeled truck, comprising a brake caliper body. Two locking blocks are fixedly connected to the right side of the brake caliper body, and locking grooves are formed on the right side of each locking block. A protective cover is provided on the outer side of the brake caliper body, and two telescopic rods are fixedly connected to the inner side of the protective cover. A drive disc is fixedly connected to the end of each telescopic rod near the locking blocks. A spring is fixedly connected to the side of the drive disc away from the locking blocks. A locking pin is fixedly connected to the side of the drive disc near the locking blocks. The end of the spring away from the drive disc is connected to the protective cover. The cover is fixedly connected, and the locking pin is inserted into the locking groove. A linkage plate is fixedly connected between the two drive discs. A drive slider is fixedly connected to the side of the linkage plate away from the locking pin. A limit plate is fixedly connected to the end of the drive slider away from the linkage plate. A pull ring is fixedly connected to the side of the limit plate away from the drive slider. An auxiliary mechanism is provided on the brake caliper body and the protective cover. The auxiliary mechanism is used to increase the friction during braking and to increase the stability of the connection between the protective cover and the brake caliper body. A disc mechanism is provided on the brake caliper body. The disc mechanism is used to cooperate with the brake caliper body to brake.

[0007] In a preferred embodiment, the auxiliary mechanism includes a friction assembly and a secondary locking assembly. The friction assembly is used to increase the frictional force during braking, and the secondary locking assembly is used to increase the stability of the connection between the protective cover and the brake caliper body.

[0008] In a preferred embodiment, the friction assembly includes a friction pad fixedly connected to the inside of the brake caliper body and a handbrake lever fixedly connected to the rear side of the brake caliper body.

[0009] In a preferred embodiment, the secondary lock assembly includes a fixed base fixedly connected to the front side of the brake caliper body, a cross pin fixedly connected to the front side of the fixed base, a secondary lock block fixedly connected inside the protective cover, and a cross groove formed at the rear end of the secondary lock block, with the cross pin inserted into the interior of the cross groove.

[0010] In a preferred embodiment, the disc mechanism includes a main disc assembly and a sealing disc assembly. The main disc assembly is used to cooperate with the brake caliper body for braking, and the sealing disc assembly is used to prevent external debris from entering the interior of the main disc assembly.

[0011] In a preferred embodiment, the main disc assembly includes a brake disc disposed inside the brake caliper body, a fixing cover fixedly connected to the front side of the brake disc, and a plurality of first fixing holes formed on the front side of the fixing cover.

[0012] In a preferred embodiment, the sealing assembly includes a cover disposed on the front side of the fixing cover and a plurality of second fixing holes formed on the front side of the cover.

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

[0014] This utility model achieves one-step quick disassembly of the protective cover through a linkage unlocking design, which significantly improves maintenance efficiency. Its core advantage is that it completely eliminates the cumbersome process of traditional bolt disassembly and assembly. By using a single-point operation of the pull ring, the constraints of multiple locking points can be released simultaneously, replacing the disassembly of multiple bolts one by one. This allows the unlocking and locking action of the protective cover to be completed instantly, which not only solves the problem of time-consuming disassembly caused by multiple protective covers and multiple bolts, but also greatly simplifies the preparation work before brake caliper maintenance, effectively reducing operation time and labor intensity. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the brake caliper body structure of this utility model.

[0017] Figure 3 This is a rear view structural diagram of the protective cover of this utility model.

[0018] Figure 4 This is a schematic cross-sectional view of the protective cover of this utility model.

[0019] Figure 5 This is a schematic diagram of the quick-release component structure of this utility model.

[0020] Figure 6 This is a schematic diagram of the brake disc structure of this utility model.

[0021] The attached figures are labeled as follows: 1. Brake caliper body; 11. Locking block; 12. Locking groove; 13. Protective cover; 14. Telescopic rod; 15. Drive disc; 16. Spring; 17. Locking pin; 18. Linkage plate; 19. Drive slider; 20. Limiting plate; 21. Pull ring; 311. Friction plate; 312. Handbrake lever; 321. Fixing base; 322. Cross pin; 323. Secondary locking block; 324. Cross groove; 411. Brake disc; 412. Fixing cover; 413. First fixing hole; 421. Cover; 422. Second fixing hole. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Refer to the instruction manual appendix Figures 1 to 6The rear axle hydraulic disc brake for an electric three- or four-wheeled truck includes a brake caliper body 1. Two locking blocks 11 are fixedly connected to the right side of the brake caliper body 1. A locking groove 12 is formed on the right side of each locking block 11. A protective cover 13 is provided on the outer side of the brake caliper body 1. Two telescopic rods 14 are fixedly connected to the inner side of the protective cover 13. A drive disc 15 is fixedly connected to the end of each telescopic rod 14 near the locking blocks 11. A spring 16 is fixedly connected to the side of the drive disc 15 away from the locking blocks 11. A locking pin 17 is fixedly connected to the side of the drive disc 15 near the locking blocks 11. The end of the spring 16 away from the drive disc 15 is fixedly connected to the protective cover 13. The pin 17 is inserted into the locking groove 12. A linkage plate 18 is fixedly connected between the two drive discs 15. A drive slider 19 is fixedly connected to the side of the linkage plate 18 away from the locking pin 17. A limit plate 20 is fixedly connected to the end of the drive slider 19 away from the linkage plate 18. A pull ring 21 is fixedly connected to the side of the limit plate 20 away from the drive slider 19. An auxiliary mechanism is provided on the brake caliper body 1 and the protective cover 13. The auxiliary mechanism is used to increase the friction during braking and to increase the stability of the connection between the protective cover 13 and the brake caliper body 1. A disc mechanism is provided on the brake caliper body 1. The disc mechanism is used to cooperate with the brake caliper body 1 to brake.

[0024] It should be noted that the locking pin 17 is inserted into the locking groove 12 and the thrust of the locking pin 17 is used to clamp the protective cover 13, thereby fixing the protective cover 13 to the outside of the brake caliper body 1.

[0025] Refer to the instruction manual appendix Figures 2 to 4 The auxiliary mechanism includes a friction assembly and a secondary locking assembly. The friction assembly is used to increase the friction force during braking, and the secondary locking assembly is used to increase the stability of the connection between the protective cover 13 and the brake caliper body 1.

[0026] It should be noted that the friction pad 311 is located at the front end of the inner side of the brake caliper body 1, so that the friction pad 311 can fit against the front side of the brake disc 411 during braking.

[0027] Refer to the instruction manual appendix Figure 2 The friction assembly includes a friction pad 311 fixedly connected to the inner side of the brake caliper body 1 and a handbrake lever 312 fixedly connected to the rear side of the brake caliper body 1.

[0028] It should be noted that the friction force during braking is increased by the friction pad 311 being in contact with the brake disc 411, thereby reducing the braking distance.

[0029] Refer to the instruction manual appendix Figures 2 to 4The secondary lock assembly includes a fixed base 321 fixedly connected to the front side of the brake caliper body 1, a cross pin 322 fixedly connected to the front side of the fixed base 321, a secondary lock block 323 fixedly connected to the inside of the protective cover 13, and a cross groove 324 opened at the rear end of the secondary lock block 323, with the cross pin 322 inserted into the inside of the cross groove 324.

[0030] It should be noted that when the protective cover 13 is placed over the outside of the brake caliper body 1, the cross pin 322 will be inserted into the cross groove 324 to limit the position of the protective cover 13.

[0031] Refer to the instruction manual appendix Figures 1 to 6 The disc mechanism includes a main disc assembly and a sealing disc assembly. The main disc assembly is used to cooperate with the brake caliper body 1 for braking, and the sealing disc assembly is used to prevent external debris from entering the main disc assembly.

[0032] It should be noted that only a portion of the brake disc 411 is engaged with the inner side of the brake caliper body 1, and a portion of the brake disc 411 is always inside the brake caliper body 1 when it rotates.

[0033] Refer to the instruction manual appendix Figure 6 The main disc assembly includes a brake disc 411 disposed inside the brake caliper body 1, a fixing cover 412 fixedly connected to the front side of the brake disc 411, and a plurality of first fixing holes 413 opened on the front side of the fixing cover 412.

[0034] It should be noted that after the bolt passes through the first fixing hole 413, the fixing cover 412 is fixed to the rear axle of the vehicle. In this way, when the rear axle rotates, it will drive the brake disc 411 to rotate through the fixing cover 412.

[0035] Refer to the instruction manual appendix Figure 6 The sealing plate assembly includes a sealing cover 421 disposed on the front side of the fixing cover 412 and a plurality of second fixing holes 422 opened on the front side of the sealing cover 421.

[0036] It should be noted that the cover 421 is fixed to the rear axle of the vehicle by bolts passing through the second fixing hole 422, which can block external debris.

[0037] Working principle: First, the pull ring 21 pulls the drive slider 19 to move away from the locking block 11. The drive slider 19 then drives the two drive discs 15 to move away from the locking block 11 simultaneously via the linkage plate 18. During this movement, the telescopic rod 14 and spring 16 retract due to pressure. At the same time, the movement of the drive discs 15 drives the locking pin 17 to move away from the locking block 11 until the locking pin 17 is completely pulled out from the inside of the locking groove 12. This releases the locking state of the protective cover 13, and then the protective cover 13 can be removed from the brake caliper body 1. When it is necessary to install the protective cover 13, it is also necessary to first... Pull ring 21 moves locking pin 17 away from locking block 11, and then protective cover 13 covers the outside of brake caliper body 1. During this process, cross pin 322 will be inserted into cross groove 324 to limit the position of protective cover 13. Then pull ring 21 is released. At this time, the return thrust of spring 16 pushes drive disc 15 to move towards locking block 11. The movement of drive disc 15 drives locking pin 17 to be inserted into locking groove 12. In this way, the thrust generated by locking pin 17 being inserted into locking groove 12, together with protective cover 13, clamps the protective cover 13 itself, thereby fixing the protective cover 13 to the outside of brake caliper body 1.

[0038] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A hydraulic disc brake on the rear axle of an electric three- or four-wheeled truck, characterized in that: The system includes a brake caliper body (1), with two locking blocks (11) fixedly connected to the right side of the brake caliper body (1). A locking groove (12) is provided on the right side of each locking block (11). A protective cover (13) is provided on the outer side of the brake caliper body (1). Two telescopic rods (14) are fixedly connected to the inner side of the protective cover (13). A drive disc (15) is fixedly connected to one end of each telescopic rod (14) near the locking block (11). A spring (16) is fixedly connected to the side of the drive disc (15) away from the locking block (11). A locking pin (17) is fixedly connected to the side of the drive disc (15) near the locking block (11). The end of the spring (16) away from the drive disc (15) is fixedly connected to the protective cover (13). The locking pin (17)... Inside the locking groove (12), a linkage plate (18) is fixedly connected between the two drive discs (15). A drive slider (19) is fixedly connected to the side of the linkage plate (18) away from the locking pin (17). A limit plate (20) is fixedly connected to the end of the drive slider (19) away from the linkage plate (18). A pull ring (21) is fixedly connected to the side of the limit plate (20) away from the drive slider (19). An auxiliary mechanism is provided on the brake caliper body (1) and the protective cover (13). The auxiliary mechanism is used to increase the friction force during braking and to increase the stability of the connection between the protective cover (13) and the brake caliper body (1). A disc mechanism is provided on the brake caliper body (1). The disc mechanism is used to cooperate with the brake caliper body (1) for braking.

2. The rear axle hydraulic disc brake of the electric three- or four-wheeled truck according to claim 1, characterized in that: The auxiliary mechanism includes a friction assembly and a secondary locking assembly. The friction assembly is used to increase the friction force during braking, and the secondary locking assembly is used to increase the stability of the connection between the protective cover (13) and the brake caliper body (1).

3. The rear axle hydraulic disc brake of the electric three- or four-wheeled truck according to claim 2, characterized in that: The friction assembly includes a friction pad (311) fixedly connected to the inside of the brake caliper body (1) and a handbrake lever (312) fixedly connected to the rear of the brake caliper body (1).

4. The rear axle hydraulic disc brake of the electric three- or four-wheeled truck according to claim 3, characterized in that: The secondary lock assembly includes a fixed base (321) fixedly connected to the front side of the brake caliper body (1), a cross pin (322) fixedly connected to the front side of the fixed base (321), a secondary lock block (323) fixedly connected inside the protective cover (13), and a cross groove (324) opened at the rear end of the secondary lock block (323), with the cross pin (322) inserted into the interior of the cross groove (324).

5. The rear axle hydraulic disc brake of the electric three- or four-wheeled truck according to claim 1, characterized in that: The disc mechanism includes a main disc assembly and a sealing disc assembly. The main disc assembly is used to cooperate with the brake caliper body (1) for braking, and the sealing disc assembly is used to prevent external debris from entering the main disc assembly.

6. The rear axle hydraulic disc brake of the electric three- or four-wheeled truck according to claim 5, characterized in that: The main disc assembly includes a brake disc (411) disposed inside the brake caliper body (1), a fixing cover (412) fixedly connected to the front side of the brake disc (411), and a plurality of first fixing holes (413) opened on the front side of the fixing cover (412).

7. The rear axle hydraulic disc brake of the electric three- or four-wheeled truck according to claim 6, characterized in that: The sealing assembly includes a sealing cover (421) disposed on the front side of the fixing cover (412) and a plurality of second fixing holes (422) opened on the front side of the sealing cover (421).

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