Quick docking device for tractor brake fluid pipeline

Abstract

The utility model discloses a tractor brake fluid pipe quick docking device for tractor brake, relates to tractor accessory technical field, it includes connecting pipe no.

Description

Technical Field

[0001] This utility model relates to the field of tractor parts technology, specifically a quick-connect device for brake fluid lines in tractor brake systems. Background Technology

[0002] As a key power machine in agricultural production and engineering construction, the reliability of the braking system of a tractor directly affects the overall operating safety and efficiency. The brake fluid lines, as the core channel for transmitting hydraulic pressure in the braking system, have a decisive impact on braking performance due to their sealing, stability, and ease of assembly.

[0003] Traditional tractor brake fluid lines typically use threaded connections or flanged joints, relying on tightening the threads or bolts to press the sealing rings together for sealing. However, under long-term vibration, hydraulic pulses, and temperature changes, the threads are prone to loosening or corrosion, leading to seal failure and brake fluid leakage. This not only increases the frequency of routine maintenance but also creates a safety hazard of brake failure. Furthermore, traditional connection methods require specialized tools and involve lengthy disassembly and assembly, making it difficult to meet the technical requirements of modern, efficient agricultural operations for rapid maintenance.

[0004] Therefore, in order to solve the above problems, the applicant needs to design a quick-connect device for the brake fluid lines of a tractor brake. Utility Model Content

[0005] The purpose of this invention is to provide a quick-connect device for brake fluid lines in tractor brakes, in order to solve the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-connect device for brake fluid lines of a tractor brake, comprising a connecting pipe 1 communicating with the brake fluid lines of a tractor brake, the connecting pipe 1 having a threaded groove, and a connecting component threaded onto the threaded groove, the connecting component including an extension pipe communicating with the connecting pipe 1, and a connector pipe integrally provided on the extension pipe, a connecting component being provided on the inner side of the connector pipe, and the connecting component being threadedly connected to an external pipe, the connecting component including a connecting pipe 2, and a sealing gasket being provided between the connecting pipe 2 and the extension pipe, the connector pipe having an array of slots, and a snap-fit ​​component corresponding to the slots being provided on the connector pipe, the connecting pipe 2 having a snap-fit ​​groove, and the snap-fit ​​groove cooperating with the snap-fit ​​component through the slot to connect the connecting component and the connecting component.

[0007] Furthermore, the second connecting pipe is provided with a groove, and a number of rubber rings arranged in an array along the axial direction of the second connecting pipe are provided in the groove.

[0008] Through the above structural design, the rubber ring enhances the multi-layer sealing effect at the connection, effectively preventing brake fluid leakage.

[0009] Furthermore, the snap-fit ​​assembly includes a fixing block that is fixedly connected to the connecting pipe, and a slide rod is fixedly provided on the fixing block. A rotating handle is rotatably provided on the slide rod, and a snap-fit ​​block that matches the snap-fit ​​slot is integrally provided on the rotating handle.

[0010] Through the above structural design, the locking assembly drives the locking blocks to engage by rotating the handle, achieving quick locking and disengagement without tools.

[0011] Furthermore, a return spring is fixedly provided at the end of the rotating handle away from the locking block, and the end of the return spring away from the rotating handle is fixedly connected to the extension tube.

[0012] Through the above structural design, the reset spring can automatically pull back the rotating handle to ensure that the locking block remains in a stable engagement state and avoids accidental disengagement.

[0013] Furthermore, the sealing gasket is made of rubber.

[0014] Through the above structural design, the rubber sealing gasket provides a highly elastic compression seal, adapting to vibration and temperature change conditions.

[0015] Furthermore, the inner wall of the connector tube is provided with a guide groove, and the outer wall of the second connecting tube is provided with a guide protrusion that cooperates with the guide groove.

[0016] Through the above structural design, the guide groove and the raised structure guide the connecting pipe to be precisely aligned, avoiding misalignment that could lead to poor sealing.

[0017] Furthermore, the engaging surface of the card block is an arc surface, and the inclination angle of the arc surface is consistent with the angle of the opening arc surface of the card slot.

[0018] Through the above structural design, the arc meshing surface design reduces the contact stress between the card block and the card slot, thereby improving wear resistance and service life.

[0019] Furthermore, the number of the slots is not less than three, and they are evenly distributed along the circumference of the connector pipe.

[0020] Through the above structural design, the circumferentially uniform multi-groove layout ensures uniform stress distribution in the connection, thereby improving the overall structural stability.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This tractor brake fluid line quick-connect device replaces the traditional threaded connection by using a lever-driven locking block that engages with a slot, enabling tool-free quick assembly and disassembly, thus improving maintenance efficiency. Furthermore, its dual-redundant sealing design, combining end-face rubber gasket sealing with multiple radial rubber ring seals on the connecting pipe, ensures extremely high sealing reliability and connection stability even under harsh conditions such as severe tractor vibration, hydraulic pulses, and alternating hot and cold temperatures. This eliminates the risk of brake fluid leakage and improves the safety and service life of the entire braking system. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall disassembled structure of this utility model;

[0024] Figure 2 This is a three-dimensional structural diagram of the connecting component of this utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the snap-fit ​​assembly of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the connecting component of this utility model.

[0027] In the diagram: 1. Connecting pipe one; 2. Connecting component; 3. Connecting component; 10. Threaded groove; 11. Sealing gasket; 20. Connecting pipe; 21. Extension pipe; 22. Fixing block; 23. Slide rod; 24. Rotating handle; 25. Locking block; 26. Return spring; 27. Groove; 28. Guide groove; 30. Connecting pipe two; 31. Locking groove; 32. Rubber ring; 33. Guide protrusion. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1-4As shown, this utility model discloses a quick-connect device for brake fluid lines of a tractor brake, including a connecting pipe 1 connected to the brake fluid lines of the tractor brake. The connecting pipe 1 has a threaded groove 10, and a connecting component 2 is threaded onto the threaded groove 10. The connecting component 2 includes an extension pipe 21 connected to the connecting pipe 1, and a connector pipe 20 is integrally provided on the extension pipe 21. A connecting component 3 is provided on the inner side of the connector pipe 20, and the connecting component 3 is threadedly connected to an external pipe. The connecting component 3 includes a connecting pipe 30, and a sealing gasket 11 is provided between the connecting pipe 30 and the extension pipe 21. The connector pipe 20 has an array of slots 27, and a snap-fit ​​component corresponding to the slots 27 is provided on the connector pipe 20. The connecting pipe 30 has a snap-fit ​​groove 31, and the snap-fit ​​groove 31 cooperates with the snap-fit ​​component through the slots 27 to connect the connecting component 3 and the connecting component 2.

[0030] The connecting pipe 2 30 is provided with a groove, and several rubber rings 32 are arranged in an array along the axis of the connecting pipe 2 30. Multiple redundant sealing barriers are formed on the mating surface of the connecting pipe 2 30 and the connector pipe 20. When there is hydraulic fluctuation or slight deformation of the pipeline, these rubber rings 32 can play their roles step by step, which greatly improves the sealing reliability and effectively eliminates the risk of brake fluid leakage.

[0031] The snap-fit ​​assembly includes a fixing block 22 that is fixedly connected to the connecting pipe 1, and a slide rod 23 is fixedly mounted on the fixing block 22. A rotating handle 24 is rotatably mounted on the slide rod 23, and a locking block 25 that matches the locking groove 31 is integrally mounted on the rotating handle 24. Simply rotating the handle can drive the locking block 25 to quickly engage or disengage from the locking groove 31, eliminating the reliance on special tools such as wrenches, realizing one-step quick disassembly and assembly, and improving the efficiency of maintenance or routine upkeep.

[0032] A return spring 26 is fixedly installed at the end of the rotating handle 24 away from the locking block 25, and the end of the return spring 26 away from the rotating handle 24 is fixedly connected to the extension tube 21. The preload of the return spring 26 can automatically push the rotating handle 24 out and keep it in the locked position, which not only avoids the locking block 25 from being accidentally loosened due to vibration, but also ensures continuous stability in the connection state and enhances the vibration and impact resistance of the entire connector.

[0033] The sealing gasket 11 is made of rubber. The excellent elasticity and oil resistance of rubber allow it to deform fully under the action of pre-tightening force, perfectly filling the micro gaps. At the same time, its material properties can adapt to changes in brake fluid composition and operating temperature, ensuring long-term sealing effectiveness.

[0034] The inner wall of the connector tube 20 is provided with a guide groove 28, and the outer wall of the connecting tube 20 is provided with a guide protrusion 33 that cooperates with the guide groove 28. In the initial stage of docking, the connecting tube 20 and the connector tube 20 are provided with clear radial positioning guidance, which effectively prevents the seal from being worn unevenly or not being pressed tightly due to docking misalignment, and ensures the success rate of assembly and the integrity of the seal.

[0035] The engagement surface of the locking block 25 is an arc surface, and the inclination angle of the arc surface is consistent with the opening arc surface angle of the locking groove 31. The surface contact form increases the effective contact area, reduces the contact stress per unit area, thereby reducing wear and extending the service life of the quick-connect device.

[0036] The number of slots 27 is not less than three, and they are evenly distributed along the circumference of the connector tube 20, so that the locking force can be evenly distributed on the entire circumference of the connector tube 30, preventing warping or leakage that may occur due to unilateral force on the connector, and improving the overall rigidity and reliability of the connection.

[0037] When using the tractor brake fluid line quick-connect device, when it is necessary to connect the lines, the operator first inserts the connecting pipe 30 of the connecting component 3 into the connector pipe 20. At this time, the guide protrusion 33 slides in along the guide groove 28 to ensure alignment. Then, the operator rotates the handle 24 to drive the locking block 25 to move radially inward until its arc surface is fully embedded in the locking groove 31 on the outer wall of the connecting pipe 30. Under the action of the return spring 26, the locking state is completed. At the same time, the multiple rubber rings 32 on the connecting pipe 30 and the inner wall of the connector pipe 20 form multiple radial seals, thereby quickly forming a reliable fluid channel that can resist high pressure, vibration and temperature changes without tools.

[0038] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A quick-connect device for brake fluid lines in a tractor brake system, characterized in that, The system includes a connecting pipe (1) that communicates with the brake fluid line of a tractor brake. The connecting pipe (1) has a threaded groove (10), and a connecting component (2) is threaded onto the threaded groove (10). The connecting component (2) includes an extension pipe (21) that communicates with the connecting pipe (1), and a connector pipe (20) is integrally provided on the extension pipe (21). A connecting component (3) is provided on the inner side of the connector pipe (20), and the connecting component (3) is threadedly connected to an external pipe. The component (3) includes a second connecting pipe (30), and a sealing gasket (11) is provided between the second connecting pipe (30) and the extension pipe (21). The connector pipe (20) is provided with an array of slots (27), and the connector pipe (20) is provided with a snap-fit ​​component corresponding to the slots (27). The second connecting pipe (30) is provided with a slot (31), and the slot (31) cooperates with the snap-fit ​​component through the slots (27) to connect the connecting component (3) and the connecting component (2).

2. The quick-connect device for tractor brake fluid lines according to claim 1, characterized in that: The connecting pipe 2 (30) is provided with a groove, and a number of rubber rings (32) are arranged in an array along the axial direction of the connecting pipe 2 (30) in the groove.

3. The quick-connect device for tractor brake fluid lines according to claim 1, characterized in that: The snap-fit ​​assembly includes a fixing block (22) that is fixedly connected to the connecting tube (1), and a slide rod (23) is fixedly provided on the fixing block (22). A rotating handle (24) is rotatably provided on the slide rod (23), and a snap block (25) that matches the snap slot (31) is integrally provided on the rotating handle (24).

4. A quick-connect device for tractor brake fluid lines according to claim 3, characterized in that: A reset spring (26) is fixedly provided at the end of the rotating handle (24) away from the locking block (25), and the end of the reset spring (26) away from the rotating handle (24) is fixedly connected to the extension tube (21).

5. A quick-connect device for tractor brake fluid lines according to claim 1, characterized in that: The sealing gasket (11) is made of rubber.

6. A quick-connect device for tractor brake fluid lines according to claim 1, characterized in that: The inner wall of the connector tube (20) is provided with a guide groove (28), and the outer wall of the connecting tube (30) is provided with a guide protrusion (33) that cooperates with the guide groove (28).

7. A quick-connect device for brake fluid lines of a tractor brake according to claim 3, characterized in that: The engagement surface of the card block (25) is an arc surface, and the inclination angle of the arc surface is consistent with the angle of the opening arc surface of the card slot (31).

8. A quick-connect device for tractor brake fluid lines according to claim 1, characterized in that: The number of the slots (27) is not less than three, and they are evenly distributed along the circumference of the connector pipe (20).

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