A quick connect fitting for oil lines of a diesel generator

By designing a double sealing structure and a mechanical locking mechanism on the diesel generator oil pipe joint, the leakage problem caused by loose oil pipe joints is solved, achieving stable sealing under high pressure and convenient quick connection.

CN224397379UActive Publication Date: 2026-06-23HUNAN QIANDIAN POWER TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN QIANDIAN POWER TECH CO LTD
Filing Date
2025-08-25
Publication Date
2026-06-23

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  • Figure CN224397379U_ABST
    Figure CN224397379U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of oil pipe quick connection joint of diesel generator, it is related to diesel generator technical field, including parent body, the parent body head interface is equipped with mounting groove, and axial sealing ring is embedded in the mounting groove groove bottom groove, the mounting groove opening is equipped with step, and radial sealing ring is embedded in the step inside, the parent body head both ends are fixed with dog one. The present application provides a kind of oil pipe quick connection joint of diesel generator, axial sealing ring is installed in the mounting groove groove bottom groove of parent body in the present application, the contact surface of the plug portion of main sealing sub and parent body bottom is mainly sealed, prevent fluid from axial leakage, the present application is also installed in the step inside of parent body opening radial sealing ring, by the radial sealing formed by the adhesion of sub outer edge and it, block fluid from sub and parent body joint gap seepage, by the cooperation structure of sub and parent body and sealing ring design can realize double sealing, can keep sealing stability under high pressure working condition.
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Description

Technical Field

[0001] This utility model relates to the field of diesel generator technology, specifically to a quick-connect coupling for the oil pipe of a diesel generator. Background Technology

[0002] A diesel generator is a small power generation device that uses diesel fuel and a diesel engine as the prime mover to drive a generator to generate electricity.

[0003] Oil pipe joints are usually installed on the oil pipes of diesel generators. When two oil pipe joints are connected, the joints are prone to loosening under high oil pressure, which may even lead to oil leakage in the oil pipes. Utility Model Content

[0004] The purpose of this invention is to provide a quick-connect fitting for the oil pipe of a diesel generator to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-connect fitting for the oil pipe of a diesel generator, comprising a mother body, wherein an installation groove is provided at the head interface of the mother body, and an axial sealing ring is embedded in the groove at the bottom of the installation groove, and a step is provided at the opening of the installation groove, and a radial sealing ring is embedded inside the step.

[0006] Furthermore, the head of the mother body is fixed with claws at both ends, and the claws are symmetrically distributed along the axial direction of the mounting groove opening.

[0007] Furthermore, a flange is fixed to the outer edge of the head of the mother body, and the flange is a two-segment arc-shaped structure.

[0008] Furthermore, the outer surface of the mother body is connected to the daughter body, and the outer edge of the daughter body cooperates with the radial sealing ring inside the step to achieve radial sealing at the junction of the mother body and the daughter body.

[0009] Furthermore, the head of the sub-body is fixedly connected to a plug, and the end of the plug cooperates with the axial sealing ring at the bottom of the mounting groove to achieve axial sealing between the plug and the contact surface of the sub-body.

[0010] Furthermore, the head of the sub-body is fixed with two claws, and the claws are staggered with the first claw.

[0011] Furthermore, the outer edge of the head of the sub-body is fixed with a second flange, and the second flange and the first flange are staggered while both ends are provided with a conical surface.

[0012] Furthermore, a handle is fixedly connected to the outside of the sub-body, and the handle is covered with an anti-slip rubber sleeve.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In use, this utility model has an axial sealing ring installed in the groove at the bottom of the mounting slot of the mother body. This ring mainly seals the contact surface between the plug part of the daughter body and the bottom of the mother body to prevent fluid from leaking axially. This utility model also has a radial sealing ring installed in the step at the opening of the mother body. The radial seal is formed by the outer edge of the daughter body fitting with the ring, which prevents fluid from seeping out from the gap between the daughter body and the mother body. The double seal can be achieved through the matching structure of the daughter body and the mother body and the design of the sealing ring, which can maintain the sealing stability under high pressure conditions.

[0015] 2. In use, this utility model has two-section arc-shaped flanges and claws fixed on the outer edges of the openings of the mother body and the daughter body. By inserting the plug part of the daughter body into the mounting groove of the opening of the mother body, and rotating the daughter body with the help of the handle after docking, the claws and the corresponding flanges form a mechanical lock. That is, the lock can be achieved by simply turning. With the help of the built-in handle, no tools are needed, making disassembly and assembly more convenient and quick. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0017] Figure 2 This is a schematic diagram of the split structure of the device of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the device of this utility model.

[0019] In the diagram: 1. Main body; 2. Mounting groove; 3. Axial sealing ring; 4. Step; 5. Radial sealing ring; 6. Claw 1; 7. Flange 1; 8. Sub-body; 9. Plug; 10. Claw 2; 11. Flange 2; 12. Handle; 13. Anti-slip rubber sleeve. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] like Figures 1 to 3 As shown, a quick-connect fitting for the oil pipe of a diesel generator includes a mother body 1. The head interface of the mother body 1 is provided with a mounting groove 2, and an axial sealing ring 3 is embedded in the groove at the bottom of the mounting groove 2. The opening of the mounting groove 2 is provided with a step 4, and a radial sealing ring 5 is embedded inside the step 4.

[0022] The specific operation is as follows: In this application, an axial sealing ring 3 is installed in the groove at the bottom of the mounting groove 2 of the mother body 1. It mainly seals the contact surface between the plug 9 part of the daughter body 8 and the bottom of the mother body 1 to prevent fluid from leaking axially. In this application, a radial sealing ring 5 is also installed in the step 4 at the opening of the mother body 1. It forms a radial seal by fitting with the outer edge of the daughter body 8, which prevents fluid from seeping out from the gap between the daughter body 8 and the mother body 1. The double seal can be achieved through the matching structure of the daughter body 8 and the mother body 1 and the design of the sealing ring, which can maintain the sealing stability under high pressure conditions.

[0023] like Figures 1 to 2 As shown, the head of the mother body 1 is fixed with claws 6 at both ends, and the claws 6 are symmetrically distributed axially at the opening of the mounting groove 2. The outer edge of the head of the mother body 1 is fixed with flange 7, and flange 7 is a two-section arc structure. The mother body 1 is connected to the outside of the daughter body 8, and the outer edge of the daughter body 8 cooperates with the radial sealing ring 5 in the step 4 to achieve radial sealing at the junction of the mother body 1 and the daughter body 8. The head of the daughter body 8 is fixed with a plug 9, and the end of the plug 9 cooperates with the axial sealing ring 3 at the bottom of the mounting groove 2 to achieve axial sealing between the plug 9 and the contact surface of the mother body 1. The head of the daughter body 8 is fixed with claws 10 at both ends, and claws 10 and claws 6 are staggered. The outer edge of the head of the daughter body 8 is fixed with flange 11, and flanges 11 and flanges 7 are staggered while both ends are provided with conical surfaces. The outside of the daughter body 8 is fixed with a handle 12, and the handle 12 is covered with an anti-slip rubber sleeve 13.

[0024] The specific operation is as follows: This application has two-section arc-shaped flanges and claws fixed on the outer edges of the openings of the mother body 1 and the daughter body 8. By inserting the plug 9 part of the daughter body 8 into the mounting groove 2 of the opening of the mother body 1, and after docking, the daughter body 8 is rotated with the help of the handle 12. The mechanical locking is formed by the cooperation of the claws and the corresponding flanges. That is, the lock can be achieved by simply turning. With the help of the built-in handle 12, no tools are needed, making disassembly and assembly more convenient and quick.

[0025] Working principle: This application has two-section arc-shaped flanges and claws fixed on the outer edges of the openings of both the mother body 1 and the daughter body 8. By inserting the plug 9 of the daughter body 8 into the mounting groove 2 of the opening of the mother body 1, and after docking, the daughter body 8 is rotated with the help of the handle 12. The claws and the corresponding flanges cooperate to form a mechanical lock, that is, a single twist can lock the device. With the help of the built-in handle 12, no tools are needed, making disassembly and assembly simpler and faster. This application has an axial sealing ring 3 installed in the groove at the bottom of the mounting groove 2 of the mother body 1. This mainly seals the contact surface between the plug 9 of the daughter body 8 and the bottom of the mother body 1 to prevent fluid from leaking axially. This application also has a radial sealing ring 5 installed in the step 4 at the opening of the mother body 1. The outer edge of the daughter body 8 fits against it to form a radial seal, preventing fluid from seeping out from the gap between the daughter body 8 and the mother body 1. Through the mating structure of the daughter body 8 and the mother body 1 and the design of the sealing ring, a double seal can be achieved, which can maintain the sealing stability under high pressure conditions.

[0026] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A quick connect coupling for oil lines of a diesel generator comprising a female body (1) and a male body (8), characterized in that, The head interface of the mother body (1) is provided with an installation groove (2), and an axial sealing ring (3) is embedded in the groove at the bottom of the installation groove (2). The opening of the installation groove (2) is provided with a step (4), and a radial sealing ring (5) is embedded inside the step (4). The two ends of the head of the mother body (1) are fixed with a first claw (6), and the first claw (6) is symmetrically distributed axially at the opening of the installation groove (2). The outer edge of the head of the mother body (1) is fixed with a first flange (7), and the first flange (7) is a two-section arc structure. The two ends of the head of the daughter body (8) are fixed with a second claw (10), and the second claw (10) and the first claw (6) are staggered. The outer edge of the head of the daughter body (8) is fixed with a second flange (11), and the second flange (11) and the first flange (7) are staggered while both ends are provided with a conical surface.

2. A quick connect fitting for oil lines of a diesel generator as defined in claim 1, characterized in that The mother body (1) is connected to the daughter body (8) on the outside, and the outer edge of the daughter body (8) cooperates with the radial sealing ring (5) in the step (4) to achieve radial sealing at the junction of the mother body (1) and the daughter body (8).

3. A quick connect fitting for oil lines of a diesel generator as defined in claim 2, characterized in that The head of the sub-body (8) is fixedly connected to a plug (9), and the end of the plug (9) cooperates with the axial sealing ring (3) at the bottom of the mounting groove (2) to achieve axial sealing between the plug (9) and the contact surface of the mother body (1).

4. A quick connect coupling for a diesel engine oil line according to claim 3, wherein, The sub-body (8) is fixedly connected to a handle (12), and the handle (12) is covered with an anti-slip rubber sleeve (13).