Anti-loose type brake pipe hard pipe joint
The anti-loosening brake pipe joint addresses unstable connections by using internal transmission sleeves and expansion plates for secure fitting, enhancing stability and replacement efficiency.
Patent Information
- Application Number
- CN202421045606.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-14
AI Technical Summary
Existing brake pipe connections in automobiles are unstable and require manual fixing after insertion, leading to potential shifting and slow replacement speeds due to external twisting methods.
A non-loosening brake pipe joint with internal transmission sleeves and rotating expansion plates, utilizing transmission rods and guide grooves for stable expansion and fitting within the pipe, ensuring secure connection without lateral movement.
Enhances connection stability by allowing secure fitting from within the pipe, preventing shifting and improving replacement speed through internal expansion and rotation.
Smart Images
Figure CN222209411U_ABST
Abstract
Description
Technical Field
[0001] The utility model is applicable to the technical field of automobile parts manufacturing, and particularly relates to an anti-loosening type brake pipe hard pipe joint. Background Art
[0002] At present, brake pipes are components used in automobile braking systems. Their main function is to transfer brake medium during automobile braking, ensuring that the braking force is transmitted to the automobile brake shoe or brake caliper to generate braking force, so that the brake is effective at all times. In order to ensure that the brake pipe port is connected to the brake medium delivery pipeline, a hard pipe joint is often used for auxiliary connection.
[0003] However, when replacing the hard pipe joint at the brake pipe port, the connection between the joint and the brake pipe port is often achieved by twisting the threaded sleeve on the outside of the hard pipe joint. This connection method only connects and reinforces the two sets of pipes from the outside, and not only cannot reinforce the connection from the inside of the pipe, but also requires the installer to manually fix the connection after inserting the pipe to be connected into the brake pipe port to prevent the connection from shaking and causing the pipe connection to shift, which affects the replacement speed of the brake pipe hard pipe joint. Therefore, we propose an anti-loosening brake pipe hard pipe joint. Utility Model Content
[0004] The main purpose of the utility model is to provide an anti-loosening type brake pipe hard pipe joint, which can effectively solve the problems in the background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A non-loosening brake pipe hard pipe joint, comprising a connecting pipe head, both ends of the outer side of the connecting pipe head are screwed with tightening threaded pipes through threads, transmission sleeves are slidably installed on both sides of the inner side of the connecting pipe head, and fixing rods are fixedly installed on the four side surfaces of the inner side of the connecting pipe head, and a fitting expansion plate is rotatably installed through the middle end surface of each fixing rod, and the fitting expansion plate is movably extended to the outer side of the connecting pipe head;
[0007] A connecting frame is fixedly mounted on the side surface of each transmission sleeve, a transmission rod is hinged on the outer surface of each connection frame through a rotating shaft, and one end of the transmission rod away from the transmission sleeve is hinged to the fitting support plate through the rotating shaft.
[0008] By adopting the above technical solution, under the transmission conversion action of the transmission rod, the transmission sleeve is pushed by the side wall of the conveying pipe and moves horizontally inside the connecting pipe head, which can provide the fitting and expansion plate with corresponding outward rotation and expansion processing, thereby ensuring that the fitting and expansion plate can be pushed and expanded from the inside of the conveying pipe, ensuring that the outer side of the conveying pipe can be fully pressed and fitted against the connecting pipe head, thereby improving the connection stability of the conveying pipe and the connecting pipe head.
[0009] As an optional solution of the technical solution of the present application, a hollow groove is provided at the middle end of each transmission sleeve.
[0010] By adopting the above technical solution, the normal conveying flow processing of the brake medium is achieved through the structural setting of the hollow groove.
[0011] As an optional solution of the technical solution of the present application, a rotation groove is opened at the middle end of each transmission rod, and the fixed rod passes through and is slidably inserted into the rotation groove.
[0012] By adopting the above technical solution, the rationality of the transmission conversion of the transmission rod is ensured by the guiding rotation of the fixed rod by the rotating groove.
[0013] As an optional solution of the technical solution of the present application, guide grooves are provided at both ends of the inner side of each connecting pipe head, and sliding blocks are fixedly installed on the outer side surfaces of both ends of each transmission sleeve, and the sliding blocks are slidably inserted into the guide grooves.
[0014] By adopting the above technical solution, the movement stability of the transmission sleeve is ensured by the guiding sliding action of the guide groove on the sliding block, thereby ensuring the rationality of the transmission conversion of the fitting and stretching plates.
[0015] Compared with the prior art, the utility model has the following beneficial effects:
[0016] 1. The technical solution of the present application is a kind of anti-loosening brake pipe hard pipe joint, in which the transmission rod is rotatably installed inside the connecting pipe head by a fixing rod, and the two ends of the transmission rod are respectively connected with the fitting expansion plate and the transmission sleeve through a rotating shaft for transmission, so that after the delivery pipe to be connected is inserted between the inner side of the connecting pipe head and the outer side of the fitting expansion plate, the transmission sleeve is pushed by the side wall of the delivery pipe and moves horizontally inside the connecting pipe head, and under the transmission conversion action of the transmission rod, the fitting expansion plate can be provided with corresponding outward rotation expansion processing, so as to ensure that the fitting expansion plate can be pushed and expanded from the inside of the delivery pipe, so as to ensure that the outer side of the delivery pipe can be fully pressed and fitted to the connecting pipe head, thereby improving the connection stability of the delivery pipe and the connecting pipe head.
[0017] 2. The technical solution of the present application is a kind of anti-loosening brake pipe hard pipe joint, which is achieved by sliding a sliding block into a guide groove, and the guiding sliding action of the guide groove on the sliding block, so that the transmission sleeve can only move horizontally inside the connecting pipe head without lateral movement under the action of the insertion resistance of the conveying pipe, thereby ensuring the rationality of the movement transmission of the transmission rod to the fitting support plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an anti-loosening type brake pipe hard pipe joint of the utility model;
[0019] Figure 2 It is a front view cross-sectional structural diagram of a connecting pipe head of an anti-loosening type brake pipe hard pipe joint of the utility model;
[0020] Figure 3 The utility model is a schematic diagram of the enlarged structure of the A part of an anti-loosening type brake pipe hard pipe joint.
[0021] Figure numerals: 1. Connecting pipe head; 11. Tightening threaded pipe; 2. Transmission sleeve; 21. Fitting and expanding plate; 22. Connecting frame; 23. Fixing rod; 24. Rotating groove; 25. Transmission rod; 3. Guide groove; 31. Sliding block; 4. Hollow groove. DETAILED DESCRIPTION
[0022] like Figure 1-3 As shown, the utility model provides a technical solution: a loosening-proof brake pipe hard pipe joint, wherein transmission sleeves 2 are slidably installed on both sides of the connecting pipe head 1, and a hollow groove 4 is opened at the middle end of each transmission sleeve 2, and fixing rods 23 are fixedly installed on the four side surfaces of the connecting pipe head 1, and a fitting support plate 21 is rotatably installed on the middle end surface of each fixing rod 23, and the fitting support plate 21 is movably extended to the outside of the connecting pipe head 1, and a connecting frame 22 is fixedly installed on the side surface of each transmission sleeve 2, and a transmission rod 25 is hinged on the outer surface of each connecting frame 22 through a rotating shaft, and the end of the transmission rod 25 away from the transmission sleeve 2 is hinged to the fitting support plate 21 through a rotating shaft.
[0023] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown in FIG. 1 , a rotation groove 24 is formed at the middle end of each transmission rod 25 , and a fixed rod 23 penetrates and is slidably inserted into the rotation groove 24 .
[0024] In this technical solution (through Figure 1 , Figure 2 and Figure 3As shown in the figure, each connecting pipe head 1 has guide grooves 3 at both ends of the inner side, and each transmission sleeve 2 has sliding blocks 31 fixedly mounted on both ends of the outer side, and the sliding blocks 31 are slidably inserted into the guide grooves 3.
[0025] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown), both ends of the outer side of the connecting pipe head 1 are screwed with tightening threaded pipes 11 through threads.
[0026] During operation, when it is necessary to connect the connecting pipe head 1 with the brake medium delivery pipe, one end of the brake medium delivery pipe is inserted into the inner side of the connecting pipe head 1, and the fitting and expansion plate 21 is inserted into the inner side of the medium delivery pipe, and then the medium delivery pipe is continuously pushed, and the guide groove 3 is combined with the guiding sliding action of the sliding block 31, so that it drives the transmission sleeve 2 to move horizontally inside the connecting pipe head 1, and the two ends of the transmission rod 25 are synchronously connected with the fitting and expansion plate 21 and the transmission sleeve 2 through the rotating shaft respectively. Under the transmission conversion action of the transmission rod 25, the horizontal movement force of the transmission sleeve 2 is converted into a driving force for the fitting and expansion plate 21, so that the fitting and expansion plate 21 rotates outward inside the medium delivery pipe to expand the delivery pipe, so that the outer side of the delivery pipe can be fully pressed against the inner wall of the connecting pipe head 1, and then the tightening threaded pipe 11 is screwed to connect the connecting pipe head 1 and the medium delivery pipe.
Claims
1. A brake pipe hard pipe joint with an anti-loosening function, comprising a connecting pipe head (1), characterized in that: Transmission sleeves (2) are slidably mounted on both sides of the connecting pipe head (1), and fixing rods (23) are fixedly mounted on the four side surfaces of the connecting pipe head (1). A fitting expansion plate (21) is rotatably mounted through the middle end surface of each fixing rod (23), and the fitting expansion plate (21) is movably extended to the outside of the connecting pipe head (1); A connecting frame (22) is fixedly mounted on the side surface of each transmission sleeve (2), and a transmission rod (25) is hingedly connected to the outer surface of each connection frame (22) via a rotating shaft, and one end of the transmission rod (25) away from the transmission sleeve (2) is hingedly connected to the contact support plate (21) via the rotating shaft.
2. The anti-loosening brake pipe hard pipe joint according to claim 1, characterized in that: A hollow groove (4) is provided at the middle end of each transmission sleeve (2).
3. The anti-loosening brake pipe hard pipe joint according to claim 1, characterized in that: A rotation groove (24) is formed at the middle end of each transmission rod (25), and a fixed rod (23) penetrates and is slidably inserted into the rotation groove (24).
4. The anti-loosening brake pipe hard pipe joint according to claim 1, characterized in that: Each of the connecting pipe heads (1) is provided with guide grooves (3) at both ends of the inner side, and each of the transmission sleeves (2) is fixedly provided with sliding blocks (31) on both ends of the outer side, and the sliding blocks (31) are slidably inserted into the guide grooves (3).
5. The anti-loosening brake pipe hard pipe joint according to claim 1, characterized in that: Both ends of the outer side of the connecting pipe head (1) are screwed with tightening threaded pipes (11) through threads.