Tubing anti-dropping adapter support

Abstract

The utility model provides a kind of oil pipe anti-drop adapter support, it is related to vehicle brake pipeline technical field, solve the existing oil pipe adapter support existing connection reliability is poor, easy to fall off, and the technical problem of bulky structure, high cost. The device includes sleeve and inner core, the inner wall of sleeve is provided with first limiting structure, inner core can be axially inserted into sleeve, the outer peripheral wall of inner core is provided with the second limiting structure corresponding with first limiting structure, when inner core is inserted into sleeve, the second limiting structure and first limiting structure are mutually clamped and cooperate, to form the mechanical locking that can prevent inner core from being axially extracted from sleeve. The utility model is by being provided with mechanical locking structure, reliable axial anti-drop connection is realized, eliminates the security risk that traditional joint is easy to slip.

Description

Technical Field

[0001] This utility model relates to the field of vehicle brake pipeline technology, and in particular to an oil pipe anti-detachment adapter bracket. Background Technology

[0002] In a vehicle's disc brake system, the reliable connection and fixation of the hydraulic hoses are crucial for driving safety. In existing technology, the connection between the hose and the connector typically involves directly stamping the inner core connector or pressing it into the sleeve connector using an interference fit. This connection method relies primarily on the friction between the inner core and the sleeve for fixation, and its resistance to axial pull-out is limited. Under conditions of prolonged vehicle travel, such as bumps, vibrations, or thermal expansion and contraction due to temperature changes, axial relative fretting can easily occur between the inner core and the sleeve, potentially leading to loosening or even complete slippage of the connection. This can cause brake fluid leakage or brake failure, posing a serious safety hazard. Furthermore, this structure lacks an independent mechanical locking mechanism; once the interference fit decreases due to wear or material fatigue, the connection will immediately fail.

[0003] On the other hand, the adapter brackets used to fix oil pipes to the frame or suspension components are traditionally made of solid metal blocks through integral machining. Although such solid brackets are strong enough, they are heavy, have low material utilization, long processing time, and high manufacturing cost, which contradicts the current trend of vehicle design pursuing lightweighting and energy saving.

[0004] While some existing pipe fittings with mechanical locking functions can mitigate the risk of detachment associated with interference fits alone, these fittings are typically used in conjunction with the aforementioned bulky solid supports, failing to simultaneously address the issue of weight reduction. Therefore, there is an urgent need in the art for a pipe adapter support that provides reliable anti-detachment functionality, possesses a lightweight structure, and reduces manufacturing costs. Utility Model Content

[0005] The purpose of this utility model is to provide an anti-detachment adapter bracket for oil pipes, which solves the technical problems of poor connection reliability, easy detachment, bulky structure, and high cost of existing oil pipe adapter brackets. The various technical effects of the preferred technical solution among the many technical solutions provided by this utility model are detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solution: This utility model provides an oil pipe anti-detachment adapter bracket, including a sleeve and an inner core. The inner wall of the sleeve is provided with a first limiting structure, and the inner core can be axially inserted into the sleeve. The outer peripheral wall of the inner core is provided with a second limiting structure corresponding to the first limiting structure. When the inner core is inserted into the sleeve, the second limiting structure and the first limiting structure engage with each other to form a mechanical lock that prevents the inner core from axially detaching from the sleeve.

[0007] Preferably, the sleeve also includes a steel pipe connected to the sleeve.

[0008] Preferably, it also includes a support body, which is formed by bending a metal sheet and is mounted on the steel pipe.

[0009] Preferably, the support body is welded to the steel pipe.

[0010] Preferably, the first limiting structure is an annular step provided on the inner wall of the sleeve; the second limiting structure is an annular hanging platform provided on the inner core insertion end.

[0011] Preferably, the annular step is provided on the inner wall near the first end of the sleeve, and the inner core extends into the sleeve from the first end.

[0012] Preferably, the annular step is a two-layer step, with the inner core inserted into the outer step and abutting against the inner step.

[0013] Preferably, the inner core further includes a connecting column, and at least one annular rib is provided on the outer circumferential surface of the connecting column.

[0014] Preferably, the steel pipe is welded to the sleeve.

[0015] The application employs the above technical solution and has at least the following beneficial effects: By setting up a first and second limiting structure that cooperate with each other, a reliable mechanical axial lock is formed between the inner core and the sleeve, which fundamentally eliminates the risk of the oil pipe falling off due to tension or vibration, and significantly improves the safety and reliability of the braking system.

[0016] This application uses a bracket formed by bending metal sheet to replace the traditional solid cutting bracket. While ensuring installation strength, it greatly reduces the weight of the component, improves material utilization, and reduces manufacturing costs, which is in line with the development trend of vehicle lightweighting.

[0017] In addition, a reliable fixing method can effectively fix the routing of the disc brake oil pipe, avoid interference or friction between the oil pipe and other components during vehicle operation, and ensure the continuous smooth flow of hydraulic oil circuit.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a partial cross-sectional view of the front disc brake pump oil pipe anti-detachment adapter bracket provided in this embodiment of the utility model. Figure 2 This is a schematic diagram of the front disc brake pump oil pipe anti-detachment adapter bracket structure provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the rear disc brake pump oil pipe anti-detachment adapter bracket structure provided in this embodiment of the utility model; Figure 4 This is a schematic diagram of the inner core structure provided in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the sleeve structure provided in an embodiment of the present utility model.

[0021] In the diagram: 1. Sleeve; 2. Inner core; 3. First limiting structure; 4. Second limiting structure; 5. Steel pipe; 6. Support body; 7. Connecting column; 8. Circular rib; 9. Circular step; 10. Circular hanging platform. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] A specific embodiment of this utility model provides an oil pipe anti-detachment adapter bracket, including a sleeve 1 and an inner core 2, combined with the attached... Figure 1 - Appendix Figure 4As shown, a first limiting structure 3 is provided on the inner wall of the sleeve 1, and the inner core 2 can be axially inserted into the sleeve 1. A second limiting structure 4 corresponding to the first limiting structure 3 is provided on the outer peripheral wall of the inner core 2. When the inner core 2 is inserted into the sleeve 1, the second limiting structure 4 and the first limiting structure 3 engage with each other to form a mechanical lock that prevents the inner core 2 from axially dislodging from the sleeve 1.

[0024] By setting up a first limiting structure 3 and a second limiting structure 4 that cooperate with each other, a reliable mechanical axial lock is formed between the inner core 2 and the sleeve 1, which fundamentally eliminates the risk of the oil pipe falling off due to tension or vibration, and significantly improves the safety and reliability of the braking system.

[0025] Specifically, the sleeve 1 is a hollow tubular component, which can be a cylindrical structure, used to accommodate the inner core 2 and form a locking mechanism with it. In one embodiment of this application, the sleeve 1 can be made of a metal material with good mechanical strength and machinability, and it can be completed by tubular cutting and internal bore machining. It should be noted that an annular step 9 is provided on the inner wall of the sleeve 1 as a first limiting structure 3. This annular step 9 is an annular protrusion extending circumferentially along the inner wall of the sleeve 1, and its end face facing the insertion direction of the inner core 2 constitutes a mechanical blocking surface.

[0026] The inner core 2 is used to connect the oil pipe (not shown in the figure) and lock it with the sleeve 1. The inner core 2 can be made of high-strength metal material (e.g., 20CrMnTi alloy steel) and can be subjected to heat treatment processes such as carburizing and quenching to improve its surface hardness and wear resistance. A second limiting structure 4 corresponding to the annular step 9 inside the sleeve 1 is provided on the outer peripheral wall of the inner core 2. In this embodiment, the second limiting structure 4 is specifically manifested as an annular mounting platform 10. The annular mounting platform 10 is a flange structure on the outer circumference of the inner core 2, and its outer diameter is designed to be slightly larger than the inner diameter of the annular step 9. The end face of the annular mounting platform 10 facing away from the insertion direction forms a locking surface, which will abut against the blocking surface of the annular step 9.

[0027] Specifically, the annular step 9 is provided on the inner wall near the first end of the sleeve 1, and the inner core 2 extends into the sleeve 1 from the first end.

[0028] Among them, the annular step 9 can be two-layer steps, with the inner core 2 inserted into the outer step and abutting against the inner step.

[0029] Furthermore, to further enhance the sealing performance between the inner core 2 and the sleeve 1 and prevent brake fluid leakage under high pressure, at least one annular rib 8 can be provided on the outer circumferential surface of the inner core 2. Specifically, the inner core 2 also includes a connecting cylinder 7, and at least one annular rib 8 is also provided on the outer circumferential surface of the connecting cylinder 7. Figure 4As shown, in this embodiment, four annular ribs 8 are evenly distributed along the axial direction. These annular ribs 8 are tiny annular protrusions on the outer wall of the inner core 2, and their cross-sections can be designed as V-shaped, U-shaped, or rectangular. When the inner core 2 is connected to the brake oil pipe, the annular ribs 8 form a tight interference fit with the inner wall of the brake oil pipe, which not only increases the friction to assist in fixation, but also forms a labyrinth-like sealing structure, which can effectively block potential leakage paths, thereby improving the reliability of the hydraulic seal at the connection.

[0030] In some embodiments, it further includes a steel pipe 5, which is connected to a sleeve 1. Sleeves 1 are provided at both ends of the steel pipe 5. In practice, the oil pipe anti-detachment adapter bracket is divided into two types: a front disc brake pump oil pipe anti-detachment adapter bracket and a rear disc brake pump oil pipe anti-detachment adapter bracket, as shown in the attached figure. Figure 1 and 2 As shown, the actual component is a front disc brake pump oil pipe anti-detachment adapter bracket, on which a bracket body 6 is also installed. The bracket body 6 is made of a single sheet metal through bending and is mounted on the steel pipe 5. (See attached image.) Figure 3 As shown, it is a rear disc brake pump oil pipe anti-detachment adapter bracket, but no bracket body 6 is installed on it.

[0031] Specifically, unlike traditional brackets that are machined from a solid metal block, the bracket body 6 in this embodiment is formed by bending a single metal sheet. Specifically, a Q235 steel plate or similar high-strength cold-rolled steel plate with a thickness of 2 to 3 mm can be used as the raw material. The manufacturing process may include: firstly, punching out the two-dimensional planar shape of the bracket on the steel plate using a stamping process, and simultaneously punching out mounting holes for fixing; then, placing the punched sheet in a bending machine and bending it one or more times at a predetermined angle to finally form the bracket body 6 with the required three-dimensional shape. For example, it can be bent into an L-shape or U-shape, where one part is a straight mounting surface and the other part is an arc-shaped contact surface that matches the outer wall of the steel pipe 5. This manufacturing method not only has high material utilization, fast production efficiency, and low cost, but also significantly reduces the weight of the resulting bracket body 6 compared to a solid machined part of equivalent strength, helping to meet the design requirements for lightweight vehicles.

[0032] The support body 6 and the steel pipe 5 are connected by welding.

[0033] A firm connection must be formed between the sleeve 1 and the steel pipe 5. In this embodiment, this connection is achieved through welding. As a preferred process, a combination of tack welding and overall brazing can be used. Specifically, the sleeve 1 is first fixed to a predetermined position on the outer wall of the sleeve 1 using a positioning fixture, and then tack welding is performed using argon arc welding for positioning. Argon arc welding, due to its small heat-affected zone and high welding precision, can ensure that the two do not undergo relative displacement in subsequent processes. After positioning, the assembly is sent to a brazing furnace under a controlled atmosphere for overall brazing.

[0034] To improve the overall durability of the adapter bracket, especially its corrosion resistance in vehicle operating environments, an anti-corrosion treatment can be applied to its entire surface after welding. As an optional approach, the entire adapter bracket can be electroplated to form a rust-proof and anti-aging coating. This coating can be a zinc-nickel alloy coating. It is understood that zinc-nickel alloy coatings offer superior corrosion resistance compared to traditional zinc plating, especially in salt spray environments, effectively protecting the bracket from rust during long-term use.

[0035] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," and "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A tubing anti-detachment adapter bracket, characterized in that, The device includes a sleeve and an inner core. The inner wall of the sleeve is provided with a first limiting structure, and the inner core can be axially inserted into the sleeve. The outer peripheral wall of the inner core is provided with a second limiting structure corresponding to the first limiting structure. When the inner core is inserted into the sleeve, the second limiting structure and the first limiting structure engage with each other to form a mechanical lock that prevents the inner core from axially dislodging from the sleeve.

2. The tubing anti-detachment adapter bracket according to claim 1, characterized in that, It also includes a steel pipe, which is connected to the sleeve.

3. The oil pipe anti-detachment adapter bracket according to claim 2, characterized in that, It also includes a support body, which is made of a metal sheet through bending and is mounted on the steel pipe.

4. The oil pipe anti-detachment adapter bracket according to claim 3, characterized in that, The support body is welded to the steel pipe.

5. The oil pipe anti-detachment adapter bracket according to claim 1, characterized in that, The first limiting structure is an annular step provided on the inner wall of the sleeve; the second limiting structure is an annular hanging platform provided at the inner core insertion end.

6. The tubing anti-drag adapter hanger of claim 5, wherein, An annular step is provided on the inner wall near the first end of the sleeve, and the inner core extends into the sleeve from the first end.

7. The tubing anti-druck adapter hanger of claim 6, wherein, The annular step consists of two layers, with the inner core inserted into the outer step and resting against the inner step.

8. The oil pipe anti-detachment adapter bracket according to claim 1, characterized in that, At least one annular rib is also provided on the outer peripheral surface of the inner core.

9. The oil pipe anti-detachment adapter bracket according to claim 2, characterized in that, The steel pipe is welded to the sleeve.

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