Brake fixing device for rear axle set of electro-tricycle

Abstract

The utility model provides a brake fixing device for a rear axle set of an electro-tricycle, and relates to the technical field of brake fixing devices. The brake fixing device for the rear axle set of the electro-tricycle comprises a rear axle tube, a rear axle body is rotatably mounted in the rear axle tube, a brake disc is fixedly mounted on the outer side of the rear axle tube, and calipers are arranged on the outer side of the brake disc. According to the brake fixing device for the rear axle set of the electro-tricycle, a rotating handle is rotated to drive a worm to rotate so as to drive a worm gear to rotate in a meshed mode, then a connecting shaft drives a gear to rotate, two limiting racks move in a meshed mode, a fixing block cannot move out of a first sliding groove of the other first fixing base, and the two first fixing bases are limited and fixed; and thus, splicing installation of the first protective shell and the second protective shell is completed, waterproof treatment is effectively conducted on the brake disc and the calipers inside, workers do not need to use tools for disassembly and assembly in the using process, and the using effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to a brake fixing device, in particular to a brake fixing device for a rear wheel axle assembly of an electric tricycle, and belongs to the technical field of brake fixing devices. Background Art

[0002] As we all know, electric tricycle is a very common means of transportation. It is relatively flexible compared to other transport vehicles, so people often use electric tricycle to transport goods. For the personal safety of the driver, the brake fixing device of the rear axle assembly of the electric tricycle needs to be able to operate normally without malfunction.

[0003] The announcement number is CN219008036U, a brake fixing device for the rear wheel axle assembly of an electric tricycle, which has the function of preventing the brake disc and caliper from being contaminated by water and rusting and reducing the degree of oxidation, thereby prolonging the service life. The device comprises a rear wheel axle tube, the interior of the rear wheel axle tube is rotatably connected to the rear wheel axle, a fixing seat is arranged on the right part of the rear wheel axle tube, a caliper is arranged on the right part of the fixing seat, and a brake disc is installed inside the caliper.

[0004] Although there are many benefits in the above scheme, there are also the following defects: when the first shell and the second shell are fixedly installed, the connecting blocks on the top of the first shell and the second shell are connected by bolts. When the caliper and the brake disc are subsequently maintained, the staff are required to use tools to disassemble and assemble the first shell and the second shell, which is troublesome to operate and the use effect is not very good. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to provide a brake fixing device for the rear wheel axle assembly of an electric tricycle in order to solve the above-mentioned problem, so as to solve the problem in the prior art that when the caliper and the brake disc are subsequently maintained, the staff need to use tools to disassemble and assemble the first shell and the second shell, which is troublesome to operate and the use effect is not very good.

[0007] (II) Technical solution

[0008] The utility model is implemented through the following technical scheme: a brake fixing device for the rear wheel axle group of an electric tricycle comprises a rear wheel axle tube, a rear wheel axle body is rotatably installed inside the rear wheel axle tube, a brake disc is fixedly installed on the outer side of the rear wheel axle tube, a caliper is arranged on the outer side of the brake disc, a first protective shell is installed on the outer side of the rear wheel axle tube through a bearing, a second protective shell is arranged on one side of the first protective shell, and a fixing structure is arranged on the upper and lower sides of the first protective shell and the second protective shell, the fixing structure comprises two No. 1 fixing seats, the two No. 1 fixing seats are respectively fixedly installed on the outer sides of the first protective shell and the second protective shell, a fixing block is fixedly installed on one side of one of the No. 1 fixing seats, a gear is rotatably installed on the inner side of the fixing block, and two limit racks are meshingly connected on the outer side of the gear, and the two limit racks are arranged on the inner side of the fixing block and are in sliding contact with the fixing block.

[0009] Preferably, another of the No. 1 fixing seats is provided with a first sliding groove, and the width and height of the fixing block and the first sliding groove match.

[0010] Preferably, a connecting shaft is fixedly mounted on one end of the gear, and the connecting shaft passes through the fixed block and one of the No. 1 fixed seats on which a worm gear is fixedly mounted.

[0011] Preferably, two No. 2 fixing seats are fixedly installed on one side of one of the No. 1 fixing seats, a worm is rotatably installed between the two No. 2 fixing seats, one end of the worm passes through one of the No. 2 fixing seats and a turning handle is fixedly installed thereon, and the worm is meshingly connected with the worm wheel.

[0012] Preferably, the caliper is fixedly mounted on one side of the first protective shell, and a sealing gasket is fixedly mounted on one side of the first protective shell and the second protective shell. The sealing gasket installed on the first protective shell and the second protective shell can produce a sealing effect on the interior when the first protective shell and the second protective shell are spliced ​​and installed, thereby preventing water and dust from entering the interior and causing corrosion and rust on the brake disc and caliper.

[0013] Preferably, a disassembly and assembly structure is provided between the brake disc and the second protective shell, the disassembly and assembly structure includes a connecting plate, a square block is fixedly installed on one side of the connecting plate, the connecting plate and the square block are both installed on the outside of the rear wheel axle body through bearings, the connecting plate and the brake disc are rotatably connected, the second protective shell is provided with a second slide groove, and the width and height of the square block and the second slide groove match.

[0014] Preferably, two No. 3 fixing seats are fixedly installed on one side of the second protective shell, two return springs are fixedly installed on one side of the No. 3 fixing seat, a pull ring is fixedly installed on one end of the two return springs, a limit block is fixedly installed on one side of the pull ring, the limit block passes through the No. 3 fixing seat and is in sliding contact with the No. 3 fixing seat, square slots are opened on both sides of the square block, and the two limit blocks are matched with the two square slots respectively.

[0015] The utility model provides a brake fixing device for the rear wheel axle assembly of an electric tricycle, which has the following beneficial effects:

[0016] 1. The brake fixing device of the rear wheel axle assembly of the electric tricycle drives the worm to rotate by turning the handle, thereby driving the worm wheel to mesh and rotate, and then drives the gear to rotate through the connecting shaft, so that the two limit racks mesh and move, so that the fixing block cannot be moved out of the first slide groove of the other No. 1 fixing seat, so as to limit and fix the two No. 1 fixing seats, thereby completing the splicing and installation of the first protective shell and the second protective shell, effectively waterproofing the internal brake disc and caliper, and no staff needs to use tools to disassemble and assemble during use, thereby improving the use effect of the device.

[0017] 2. The brake fixing device of the rear wheel axle assembly of the electric tricycle drives the limit plug to move by pulling two pull rings to prevent the square block from blocking the limit plug, and then slides it to the outside of the square block through the second slide groove of the second protective shell. When the second protective shell slides to contact with the first protective shell, the two pull rings are released. Under the elastic action of the reset spring, the limit plug is driven to move, thereby entering the square slot of the square block to fix the second protective shell. The operation is simple and convenient, which improves the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0020] Figure 3 It is a cross-sectional view of the fixing structure of the utility model;

[0021] Figure 4 It is a cross-sectional view of the disassembly and assembly structure of the utility model.

[0022]

Main component symbol description

[0023] 1. Rear wheel axle tube; 2. Rear wheel axle body; 3. Brake disc; 4. Caliper; 5. First protective shell; 6. Second protective shell; 7. Sealing gasket; 8. No. 1 fixing seat; 9. Fixing block; 10. Gear; 11. Limit rack; 12. Connecting shaft; 13. No. 2 fixing seat; 14. Worm; 15. Turn handle; 16. Worm wheel; 17. Connecting plate; 18. Square block; 19. No. 3 fixing seat; 20. Reset spring; 21. Pull ring; 22. Limiting plug. DETAILED DESCRIPTION

[0024] The embodiment of the utility model provides a brake fixing device for a rear wheel axle assembly of an electric tricycle.

[0025] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , including a rear wheel axle tube 1, a rear wheel axle body 2 is rotatably installed inside the rear wheel axle tube 1, a brake disc 3 is fixedly installed on the outside of the rear wheel axle tube 1, a caliper 4 is arranged on the outside of the brake disc 3, a first protective shell 5 is installed on the outside of the rear wheel axle tube 1 through a bearing, a second protective shell 6 is arranged on one side of the first protective shell 5, and a fixing structure is arranged on the upper and lower sides of the first protective shell 5 and the second protective shell 6, and the fixing structure includes two No. 1 fixing seats 8, and the two No. 1 fixing seats 8 are respectively fixedly installed on the outsides of the first protective shell 5 and the second protective shell 6, a fixing block 9 is fixedly installed on one side of one of the No. 1 fixing seats 8, a gear 10 is rotatably installed on the inside of the fixing block 9, and two limit racks 11 are meshingly connected on the outside of the gear 10, and the two limit racks 11 are both arranged on the inner side of the fixing block 9 and in sliding contact with the fixing block 9.

[0026] In this embodiment, another No. 1 fixing seat 8 is provided with a first sliding groove, and the fixing block 9 matches the first sliding groove in width and height.

[0027] In this embodiment, a connecting shaft 12 is fixedly mounted on one end of the gear 10 , and the connecting shaft 12 passes through the fixing block 9 and one of the first fixing seats 8 on which a worm gear 16 is fixedly mounted.

[0028] In this embodiment, two No. 2 fixed seats 13 are fixedly installed on one side of one of the No. 1 fixed seats 8, and a worm 14 is rotatably installed between the two No. 2 fixed seats 13. One end of the worm 14 passes through one of the No. 2 fixed seats 13 and a turning handle 15 is fixedly installed thereon. The worm 14 is meshingly connected with a worm wheel 16.

[0029] In this embodiment, the caliper 4 is fixedly mounted on one side of the first protective shell 5 , and a sealing gasket 7 is fixedly mounted on one side of the first protective shell 5 and the second protective shell 6 .

[0030] In this embodiment, a disassembly and assembly structure is provided between the brake disc 3 and the second protective shell 6, and the disassembly and assembly structure includes a connecting plate 17, and a square block 18 is fixedly installed on one side of the connecting plate 17. The connecting plate 17 and the square block 18 are both installed on the outside of the rear wheel axle body 2 through bearings. The connecting plate 17 and the brake disc 3 are rotatably connected, and the second protective shell 6 is provided with a second slide groove, and the width and height of the square block 18 match the second slide groove.

[0031] In this embodiment, two No. 3 fixing seats 19 are fixedly installed on one side of the second protective shell 6, two return springs 20 are fixedly installed on one side of the No. 3 fixing seat 19, a pull ring 21 is fixedly installed on one end of the two return springs 20, and a limit block 22 is fixedly installed on one side of the pull ring 21. The limit block 22 passes through the No. 3 fixing seat 19 and is in sliding contact with the No. 3 fixing seat 19. Square slots are opened on both sides of the square block 18, and the two limit blocks 22 are matched with the two square slots respectively.

[0032] It should be noted that the utility model is a brake fixing device for the rear wheel axle assembly of an electric tricycle. When in use, the two pull rings 21 are pulled to drive the limit plug 22 to move to prevent the square block 18 from blocking the limit plug 22, and then the second protective shell 6 is slid to the outside of the square block 18 through the second slide groove. When the second protective shell 6 slides to contact the first protective shell 5, the two pull rings 21 are released. Under the elastic action of the reset spring 20, the limit plug 22 is driven to move, thereby entering the square slot of the square block 18 to fix the second protective shell 6. The operation is simple and convenient, which improves the practicality of the device.

[0033] When the brake disc 3 and the caliper 4 are waterproofed, the handle 15 is turned, and the handle 15 drives the worm 14 to rotate, thereby driving the worm wheel 16 to mesh and rotate, and then drives the gear 10 to rotate through the connecting shaft 12, so that the two limit racks 11 mesh and move, so that the fixing block 9 cannot be moved out of the first slide groove of the other No. 1 fixing seat 8, so as to limit and fix the two No. 1 fixing seats 8, thereby completing the splicing and installation of the first protective shell 5 and the second protective shell 6, effectively waterproofing the internal brake disc 3 and caliper 4, and no staff needs to use tools to disassemble and assemble during use, thereby improving the use effect of the device.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A brake fixing device for a rear wheel axle assembly of an electric tricycle, comprising a rear wheel axle tube (1), characterized in that: A rear wheel axle body (2) is rotatably mounted inside the rear wheel axle tube (1), a brake disc (3) is fixedly mounted on the outer side of the rear wheel axle tube (1), a caliper (4) is arranged on the outer side of the brake disc (3), a first protective shell (5) is mounted on the outer side of the rear wheel axle tube (1) through a bearing, a second protective shell (6) is arranged on one side of the first protective shell (5), and a fixing structure is arranged on the upper and lower sides of the first protective shell (5) and the second protective shell (6), and the fixing structure includes two No. 1 fixing seats (8), the two No. 1 fixing seats (8) are respectively fixedly mounted on the outer sides of the first protective shell (5) and the second protective shell (6), a fixing block (9) is fixedly mounted on one side of one of the No. 1 fixing seats (8), a gear (10) is rotatably mounted on the inner side of the fixing block (9), and two limit racks (11) are meshingly connected on the outer side of the gear (10), and the two limit racks (11) are both arranged on the inner side of the fixing block (9) and are in sliding contact with the fixing block (9).

2. The brake fixing device for the rear wheel axle assembly of an electric tricycle according to claim 1, characterized in that: The other No. 1 fixing seat (8) is provided with a first sliding groove, and the fixing block (9) matches the first sliding groove in width and height.

3. The brake fixing device for the rear wheel axle assembly of an electric tricycle according to claim 1, characterized in that: A connecting shaft (12) is fixedly mounted on one end of the gear (10), and the connecting shaft (12) passes through the fixing block (9) and one of the first fixing seats (8) on which a worm gear (16) is fixedly mounted.

4. The brake fixing device for the rear wheel axle assembly of an electric tricycle according to claim 1, characterized in that: Two No. 2 fixing seats (13) are fixedly mounted on one side of one of the No. 1 fixing seats (8), a worm (14) is rotatably mounted between the two No. 2 fixing seats (13), one end of the worm (14) passes through one of the No. 2 fixing seats (13) and a turning handle (15) is fixedly mounted thereon, and the worm (14) is meshingly connected to a worm wheel (16).

5. The brake fixing device for the rear wheel axle assembly of an electric tricycle according to claim 1, characterized in that: The caliper (4) is fixedly mounted on one side of the first protective shell (5), and a sealing gasket (7) is fixedly mounted on one side of both the first protective shell (5) and the second protective shell (6).

6. The brake fixing device for the rear wheel axle assembly of an electric tricycle according to claim 1, characterized in that: A disassembly and assembly structure is provided between the brake disc (3) and the second protective shell (6), and the disassembly and assembly structure includes a connecting plate (17), a square block (18) is fixedly installed on one side of the connecting plate (17), and the connecting plate (17) and the square block (18) are both installed on the outer side of the rear wheel axle body (2) through bearings, and the connecting plate (17) and the brake disc (3) are rotatably connected, and the second protective shell (6) is provided with a second slide groove, and the width and height of the square block (18) and the second slide groove match.

7. The brake fixing device for the rear wheel axle assembly of an electric tricycle according to claim 6, characterized in that: Two No. 3 fixing seats (19) are fixedly installed on one side of the second protective shell (6), two return springs (20) are fixedly installed on one side of the No. 3 fixing seat (19), a pull ring (21) is fixedly installed on one end of the two return springs (20), a limit plug (22) is fixedly installed on one side of the pull ring (21), the limit plug (22) passes through the No. 3 fixing seat (19) and is in sliding contact with the No. 3 fixing seat (19), square slots are opened on both sides of the square block (18), and the two limit plugs (22) are matched with the two square slots respectively.

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