Oil pipe joint of automobile engine
By using a sliding sleeve and a limiting ball structure, the problem of low disassembly and assembly efficiency of existing automotive engine oil pipe joints is solved, achieving rapid disassembly and assembly and extended service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RUIAN HONGDU TECH CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-05-12
AI Technical Summary
Existing automotive engine oil pipe connectors are inefficient to install and remove, requiring multiple rotations of the external thread, which makes installation and removal inconvenient.
采用滑动套筒和限位球结构,通过弹簧推动滑动套筒使限位球插入连接管内实现快速连接,滑动套筒由不锈钢制成以保护内部结构并延长使用寿命。
It enables rapid assembly and disassembly of oil pipes, reduces the number of rotations during the assembly and disassembly process, improves assembly and disassembly efficiency, and protects the internal structure with a stainless steel sleeve, thus extending service life.
Smart Images

Figure CN224229713U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe connection technology, and in particular to an automotive engine oil pipe connector. Background Technology
[0002] An automobile is a means of transportation used to transport people and goods. It is generally composed of an engine, chassis, body, tires, suspension system, steering system, etc. During the operation of the engine, lubricating oil needs to be injected into the engine to ensure the normal operation of the internal structure of the engine. The oil pipes of the automobile engine play the role of transporting lubricating oil. A connector is installed at the connection between the oil pipe and the engine to quickly connect the oil pipe to the engine.
[0003] A search revealed Chinese Patent Publication No. CN204284749U, which discloses an automotive engine oil pipe connector, comprising a connector body, a sleeve, an oil pipe, and a large sealing ring. The connector body is connected to the oil pipe, and a sleeve is fitted at the joint between the connector body and the oil pipe. The connector body includes an interface section, a threaded section, a protruding shaft section, and a connecting section, which are sequentially connected. The connecting section extends into the oil pipe. One end of the sleeve has an opening, which serves as the sleeve connector. A protrusion is provided on the inner wall of the sleeve. A groove is formed on the connecting section of the connector body, and a large sealing ring is installed in the groove. The sleeve connector is located between the large sealing ring and the connector body. This utility model achieves a sealed installation between the connector body and the oil pipe through the sealing ring and the protrusion on the inner wall of the sleeve, thereby enhancing the sealing performance of the oil pipe system and making it less prone to leakage after a period of use. When the connector body wears out after long-term use, the inner sealing ring can be replaced, making disassembly and assembly convenient. However, the connector requires multiple rotations of the external thread during disassembly and assembly, resulting in low disassembly and assembly efficiency. Therefore, an automotive engine oil pipe connector is proposed to solve the above problems. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides an automotive engine oil pipe connector, which aims to improve the problem of low connector assembly and disassembly efficiency in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automotive engine oil pipe connector, comprising an oil supply pipe and an installation pipe, wherein a connecting pipe is fixedly connected to one end of the oil supply pipe, a sealing component is provided inside the installation pipe, the bottom end of the connecting pipe is slidably connected to the inside of the installation pipe, a sliding sleeve is slidably connected to the outer periphery of the installation pipe, and a plurality of evenly distributed limiting balls are slidably connected inside the installation pipe, one side of the limiting ball is slidably connected to the inside of the bottom end of the connecting pipe, the inner wall of the sliding sleeve abuts against the other side of the limiting ball, and a spring is sleeved on the outer periphery of the installation pipe, one end of the spring abutting against the inside of the sliding sleeve.
[0006] As a further description of the above technical solution:
[0007] The sealing assembly includes a sealing gasket disposed inside the mounting tube. A support ring is fixedly connected inside the mounting tube, and the sealing gasket abuts against one side of the support ring.
[0008] As a further description of the above technical solution:
[0009] The outer periphery of the mounting tube is fixedly connected to a second limiting ring, and the other end of the spring abuts against one side of the second limiting ring.
[0010] As a further description of the above technical solution:
[0011] A limiting ring is fixedly connected to the outer periphery of the mounting tube, and the limiting ring abuts against one end of the sliding sleeve.
[0012] As a further description of the above technical solution:
[0013] The sliding sleeve has a groove inside, and the size of the groove matches the size of the limiting ball.
[0014] As a further description of the above technical solution:
[0015] The size of the support ring is matched with the size of the sealing gasket.
[0016] As a further description of the above technical solution:
[0017] The inner wall of the sliding sleeve abuts against the outer wall of the mounting tube.
[0018] As a further description of the above technical solution:
[0019] The sliding sleeve is made of stainless steel.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the spring pushes the sliding sleeve to move, thereby pushing multiple limiting balls to move. One side of the multiple limiting balls is inserted into the inside of the connecting pipe, thereby connecting the connecting pipe and the installation pipe to each other. Pressing the sliding sleeve allows the limiting balls to move freely, and then the connecting pipe can be pulled out from the inside of the installation pipe, thereby realizing the quick disassembly and assembly of the oil pipe.
[0022] 2. In this utility model, the sliding sleeve can protect the internal structure and prevent it from being damaged by collisions or oil stains. The sliding sleeve is made of stainless steel, which can reduce the wear of the sliding sleeve by impurities and thus extend the service life of the oil pipe joint. Attached Figure Description
[0023] Figure 1This is a three-dimensional schematic diagram of an automobile engine oil pipe connector proposed in this utility model;
[0024] Figure 2 This is a schematic diagram of the structure of a sliding sleeve for an automotive engine oil pipe connector proposed in this utility model;
[0025] Figure 3 This is a schematic diagram of the sealing ring structure of an automotive engine oil pipe connector proposed in this utility model.
[0026] Legend:
[0027] 1. Oil pipeline; 2. Connecting pipe; 3. Sliding sleeve; 4. Installation pipe; 5. Limiting ring one; 6. Groove; 7. Limiting ball; 8. Spring; 9. Limiting ring two; 10. Sealing gasket; 11. Support ring. 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] Reference Figures 1-2 This utility model provides an embodiment of an automotive engine oil pipe connector, comprising an oil supply pipe 1 and an installation pipe 4. One end of the oil supply pipe 1 is fixedly connected to a connecting pipe 2. A sealing component is provided inside the installation pipe 4. The bottom end of the connecting pipe 2 is slidably connected to the inside of the installation pipe 4. A sliding sleeve 3 is slidably connected to the outer periphery of the installation pipe 4. The sliding sleeve 3 is made of stainless steel, and the inner wall of the sliding sleeve 3 abuts against the outer wall of the installation pipe 4. Multiple evenly distributed limiting balls 7 are slidably connected inside the installation pipe 4. One side of the limiting ball 7 is slidably connected to the inside of the bottom end of the connecting pipe 2, and the inner wall of the sliding sleeve 3 abuts against the other side of the limiting ball 7. A spring 8 is sleeved on the outer periphery of the installation pipe 4. One end of the spring 8 abuts against the inside of the sliding sleeve 3. A second limiting ring 9 is fixedly connected to the outer periphery of the installation pipe 4, and the other end of the spring 8 abuts against one side of the second limiting ring 9. A first limiting ring 5 is fixedly connected to the outer periphery of the installation pipe 4, and the first limiting ring 5 abuts against one end of the sliding sleeve 3. A groove 6 is provided inside the sliding sleeve 3, and the size of the groove 6 matches the size of the limiting ball 7.
[0030] Specifically, the oil supply pipe 1 is used to transport lubricating oil, the connecting pipe 2 is used to connect the oil supply pipe 1 and the installation pipe 4 to each other, the installation pipe 4 can be installed inside the oil filling hole of the car engine to install the connector, the sliding sleeve 3 can fix the position of the limiting ball 7, the sliding sleeve 3 is made of stainless steel to extend its service life, the limiting ball 7 can be inserted into the connecting pipe 2 to connect the connecting pipe 2 and the installation pipe 4 to each other, the spring 8 is used to push the sliding sleeve 3 to move, the second limiting ring 9 is used to limit the movement of the spring 8, the first limiting ring 5 can limit the movement of the sliding sleeve 3, and the groove 6 serves to accommodate the limiting ball 7.
[0031] Reference Figure 1 and Figure 3 The installation tube 4 is equipped with a sealing component, which includes a sealing gasket 10. The sealing gasket 10 is disposed inside the installation tube 4. A support ring 11 is fixedly connected inside the installation tube 4. The sealing gasket 10 abuts against one side of the support ring 11. The size of the support ring 11 matches the size of the sealing gasket 10.
[0032] Specifically, the sealing gasket 10 is used to enhance the sealing between the connecting pipe 2 and the mounting pipe 4, and the support ring 11 is used to support the sealing gasket 10.
[0033] Working principle: Pressing the sliding sleeve 3 releases the movement of the limiting ball 7, allowing the bottom end of the connecting pipe 2 to be inserted into the mounting pipe 4. During the movement of the connecting pipe 2, the bottom end of the connecting pipe 2 pushes the limiting ball 7 into the groove 6, facilitating the movement of the connecting pipe 2. When the bottom end of the connecting pipe 2 touches the sealing gasket 10, the sliding sleeve 3 can be released, and the sliding sleeve 3 is pushed back to its original position by the spring 8. During the reset process, the sliding sleeve 3 pushes the limiting ball 7 into the mounting pipe 4. After the sliding sleeve 3 resets, it squeezes the limiting ball 7, causing one side of the limiting ball 7 to be inserted into the bottom end of the connecting pipe 2, thus installing the connecting pipe 2 inside the mounting pipe 4, thereby connecting the oil pipe 1 to the engine. The sliding sleeve 3 protects the internal structure from impact or oil stains. The sliding sleeve 3 is made of stainless steel, which reduces wear from impurities and improves the service life of the oil pipe joint.
[0034] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An automotive engine oil pipe connector, comprising an oil supply pipe (1) and an installation pipe (4), characterized in that: One end of the oil pipeline (1) is fixedly connected to a connecting pipe (2). A sealing component is provided inside the mounting pipe (4). The bottom end of the connecting pipe (2) is slidably connected inside the mounting pipe (4). A sliding sleeve (3) is slidably connected to the outer periphery of the mounting pipe (4). Multiple evenly distributed limiting balls (7) are slidably connected inside the mounting pipe (4). One side of the limiting ball (7) is slidably connected inside the bottom end of the connecting pipe (2). The inner wall of the sliding sleeve (3) abuts against the other side of the limiting ball (7). A spring (8) is sleeved on the outer periphery of the mounting pipe (4). One end of the spring (8) abuts against the inside of the sliding sleeve (3).
2. The automotive engine oil pipe connector according to claim 1, characterized in that: The sealing assembly includes a sealing gasket (10), which is disposed inside the mounting tube (4). A support ring (11) is fixedly connected inside the mounting tube (4), and the sealing gasket (10) abuts against one side of the support ring (11).
3. The automotive engine oil pipe connector according to claim 1, characterized in that: The mounting tube (4) is fixedly connected to a limiting ring (9) on its outer periphery, and the other end of the spring (8) abuts against one side of the limiting ring (9).
4. The automotive engine oil pipe connector according to claim 1, characterized in that: The mounting tube (4) is fixedly connected to a limiting ring (5) on its outer periphery, and the limiting ring (5) abuts against one end of the sliding sleeve (3).
5. The automotive engine oil pipe connector according to claim 1, characterized in that: The sliding sleeve (3) has a groove (6) inside, and the size of the groove (6) matches the size of the limiting ball (7).
6. The automotive engine oil pipe connector according to claim 2, characterized in that: The size of the support ring (11) matches the size of the sealing gasket (10).
7. The automotive engine oil pipe connector according to claim 1, characterized in that: The inner wall of the sliding sleeve (3) abuts against the outer wall of the mounting tube (4).
8. The automotive engine oil pipe connector according to claim 1, characterized in that: The sliding sleeve (3) is made of stainless steel.