A self-sealing connector

By designing a self-sealing connector in the engine system and utilizing the cooperation of the seal and the elastic reset component, the problem of medium leakage during connector disassembly is solved, achieving safe and reliable connection of the connector and effective utilization of resources.

CN224533725UActive Publication Date: 2026-07-21WEICHAI POWER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEICHAI POWER CO LTD
Filing Date
2025-05-27
Publication Date
2026-07-21

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Abstract

The application discloses a sealing joint, comprising a joint body and a joint mounting seat, the joint mounting seat and the joint body are arranged at the connecting ports of two connected pipelines, the joint mounting seat is provided with a connecting part connected with the joint body and a positioning part fixed to the pipeline, a sealing element is arranged at the communicating port of the connecting part and the positioning part, and the joint body presses the sealing element through the connecting part to make the sealing element move along the communicating port to make the communicating port communicate. When the joint body is installed, the joint body is connected, the sealing element is pressed and separated from the communicating port, the sealing effect of the communicating port is lost, the connecting part and the positioning part communicate, the joint body and the joint mounting seat communicate, and the communication of the two end pipelines is realized. When the joint body is disassembled, the pressure on the sealing element disappears, the sealing element returns to the communicating port, the sealing of the communicating port is realized, and leakage at the joint mounting seat is avoided.
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Description

Technical Field

[0001] This application belongs to the field of engine parts technology, specifically relating to a self-sealing connector. Background Technology

[0002] When repairing engine systems, it is necessary to disassemble, inspect, or replace pipeline joints. Most existing joints use a through-hole structure, which is directly assembled at the pipeline fixing point. The pipeline structure is always in a continuous state, which causes liquid or gas at the fixing point to leak through the joint assembly location when the joint is disassembled or assembled, resulting in resource waste and pollution, and is also detrimental to the safety of workers. Utility Model Content

[0003] This application provides a self-sealing connector, which solves the problem of media leakage caused by connector disassembly.

[0004] The technical solution adopted in this application is as follows:

[0005] A self-sealing connector includes a connector body and a connector mounting base. The connector mounting base and the connector body are respectively disposed at the connection ports of two connected pipelines. The connector mounting base has a connecting part that connects to the connector body and a positioning part that is fixed to the pipeline. A sealing element is provided at the communication port between the connecting part and the positioning part. The connector body presses against the sealing element through the connecting part to make the sealing element move along the communication port to make the communication port open.

[0006] This application also includes the following additional technical features:

[0007] The connecting part is provided with a connecting cavity for inserting the connector body, the positioning part is provided with a connecting cavity, the connecting cavity and the connecting cavity are connected through the connecting port, the inner walls of the connecting cavity and the connecting cavity are provided with a stepped portion at the connecting port, the sealing member includes a push-pull portion located in the connecting cavity and a sealing portion located in the connecting cavity, the push-pull portion abuts against the connector body, and the sealing portion can engage with the stepped surface of the stepped portion facing the connecting cavity.

[0008] The connecting cavity is provided with an elastic reset member, and the bottom end of the elastic reset member and the sealing member are provided with a sealing clearance area. The connector body presses against the sealing member in the connecting cavity to make the sealing member disengage from the step surface and abut against the elastic reset member.

[0009] The sealing element abuts against the connector body and moves along the positioning part. The two ends of the sealing element abut against the connector mounting base and the connector body, respectively. The side wall of the connecting part is sealed and enclosed, and the side wall of the positioning part is hollowed out.

[0010] The sealing element further includes a support portion connecting the push-pull portion and the sealing portion, with the push-pull portion and the sealing portion respectively disposed at both ends of the support portion.

[0011] The push-pull part includes a push-pull ring, the sealing part includes a sealing ring, and the sealing element also includes a support frame connecting the push-pull ring and the sealing ring.

[0012] The push-pull ring includes a first push-pull section that abuts against the connector body and a second push-pull section that connects to the sealing ring. The second push-pull section is perpendicular to the first push-pull section, and the support frame is arranged parallel to the second push-pull section.

[0013] The connecting cavity is provided with a fixing frame for fixing the elastic reset member. The elastic reset member includes a spring wound around the fixing frame, and both sides of the spring are provided with clearance gaps with the inner wall of the connecting cavity.

[0014] The outer diameter of the connecting part is larger than the outer diameter of the positioning part, and the inner diameter of the connecting cavity is smaller than the inner diameter of the connecting cavity.

[0015] The connecting part and the positioning part are integrally formed.

[0016] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0017] This application's solution connects the connector body to the connector mounting base by setting a connecting part. The connector body, through a pressure seal, during installation, as the connector body is inserted, the seal is pressured away from the connection point between the connecting part and the positioning part, thus losing its sealing effect on the connection point and allowing communication between the connecting part and the positioning part. This, in turn, connects the connector body and the connector mounting base, enabling communication between the two pipelines and facilitating the smooth flow of gas and liquid at the connector. When the connector body is disassembled, as it gradually detaches from the connecting part, the pressure on the seal disappears, and it returns to the connection point, achieving a seal at the connection point during connector body disassembly and preventing leakage at the connector mounting base. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a cross-sectional view of the sealing state of the connector in one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the sealing element in one embodiment of the present invention;

[0021] Figure 3This is a cross-sectional view of the connector in a connected state according to one embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1-Connector body;

[0024] 2-Connector mounting base, 21-Connecting part, 211-Connecting cavity, 212-Communication port, 213-Step part, 22-Positioning part, 221-Connecting cavity, 222-Fixing bracket, 223-Spring;

[0025] 3-Seal, 31-Push-pull section, 311-Push-pull ring, 312-First push-pull section, 313-Second push-pull section, 32-Support section, 321-Support frame, 33-Seal section, 331-Seal ring. Detailed Implementation

[0026] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of this application and the features thereof can be combined with each other.

[0028] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0031] This application provides a self-sealing connector, such as... Figures 1 to 3 As shown, it includes a connector body 1 and a connector mounting base 2. The connector mounting base 2 and the connector body 1 are respectively located at the connection ports of two connected pipelines. The connector mounting base 2 is provided with a connecting part 21 that connects to the connector body 1 and a positioning part 22 that is fixed to the pipeline. A sealing element 3 is provided at the communication port 212 between the connecting part 21 and the positioning part 22. The connector body 1 presses against the sealing element 3 through the connecting part 21 to make the sealing element 3 move along the communication port 212 so that the communication port 212 is connected.

[0032] This application's solution connects the connector body 1 and the connector mounting base 2 by providing a connecting part 21. The connector body 1 presses against the sealing element 3. During installation, as the connector body 1 is inserted, the sealing element 3 is pressured and disengages from the communication port 212 between the connecting part 21 and the positioning part 22, thus losing its sealing effect on the communication port 212. This allows the connecting part 21 and the positioning part 22 to connect, thereby achieving communication between the connector body 1 and the connector mounting base 2, and enabling smooth flow of gas and liquid at the connector. When the connector body 1 is disassembled, as the connector body 1 gradually detaches from the connecting part 21, the pressure on the sealing element 3 disappears, and it returns to the communication port 212, achieving a seal at the communication port 212 during disassembly and preventing leakage at the connector mounting base 2.

[0033] Furthermore, this application improves upon existing commonly used connectors, ensuring their versatility without affecting existing assembly processes, and is interchangeable with existing connectors, facilitating widespread use.

[0034] In one embodiment, such as Figure 1As shown, the connecting part 21 is provided with a connecting cavity 211 into which the connector body 1 is inserted, and the positioning part 22 is provided with a connecting cavity 221. The connecting cavity 211 and the connecting cavity 221 are connected through a connecting port 212. The inner walls of the connecting cavity 221 and the connecting cavity 211 are provided with a stepped part 213 at the connecting port 212. The sealing member 3 includes a push-pull part 31 located in the connecting cavity 211 and a sealing part 33 located in the connecting cavity 221. The push-pull part 31 abuts against the connector body 1, and the sealing part 33 can engage with the stepped surface of the stepped part 213 toward the connecting cavity 221.

[0035] The connector body 1 is connected and installed through the connecting cavity 211, and then connected to the other end pipeline through the connecting cavity 221 connected to the connecting cavity 211, realizing the overall connection of the connector. The sealing part 33 of the sealing element 3 is set in the connecting cavity 221 and can be locked at the connection port 212 between the connecting cavity 221 and the connecting cavity 211. When locked, it blocks the connection port 212, so that the connection port 221 and the connecting cavity 211 are separated. Thus, the gas or liquid on the side of the connector mounting seat 2 cannot continue to enter the connecting cavity 211 along the connection port 212, sealing the liquid and gas in the connector mounting seat 2, preventing them from continuing to flow to the outside and avoiding leakage of liquid and gas.

[0036] Furthermore, an elastic reset element is provided within the connecting cavity 221. A sealing clearance area is provided between the bottom end of the elastic reset element and the sealing element 3. The connector body 1 presses against the sealing element 3 within the connecting cavity 211 to disengage the sealing element 3 from the stepped surface and abut against the elastic reset element. It can be understood that the sealing clearance area refers to the distance between the bottom end of the sealing element 3 and the elastic reset element in the sealed state. The sealing clearance area provides space for the sealing element 3 to move. Under the pressure of the connector body 1, the sealing element 3 moves along the sealing clearance area until it abuts against the elastic reset element.

[0037] Furthermore, the sealing element 3 abuts against the connector body 1 and moves along the positioning part 22. The two ends of the sealing element 3 abut against the connector mounting base 2 and the connector body 1 respectively. The side wall of the connecting part 21 is sealed and enclosed, and the side wall of the positioning part 22 is hollowed out.

[0038] When the connector body 1 is installed onto the connector mounting base 2, the sealing element 3 is pressed inward, causing the push-pull part 31 to move along the connecting part 21, which in turn moves the sealing part 33 along the positioning part 22. The sealing part 33 then moves away from the communication port 212 and abuts against the elastic reset element during the movement, thus connecting the communication port 212 with the positioning part 22. Figure 3 As shown, gas and liquid can flow into the connection part 21 through the side wall of the positioning part 22, thereby realizing the flow of the medium in the pipeline to the connector body 1 through the connecting port 212.

[0039] Furthermore, when the connector mounting base 2 is vertically connected to the connector body 1 and the connector body 1 is located above, when the connector body 1 is disassembled, in addition to the sealing part 33 sealing the connecting cavity 221, the liquid at the connecting part 21 can remain in the connecting cavity 211, further preventing leakage.

[0040] When the connector mounting base 2 is vertically connected to the connector body 1 and the connector body 1 is located below, as the connector body 1 is disassembled, the sealing part 33 seals the connecting cavity 221, and the connector body 1 guides the flow of liquid at the connection part 21, so that the liquid flows into the pipeline on this side along with the connector body 1, which can also prevent the leakage of a small amount of liquid at the connection part 21.

[0041] Preferably, the sealing member 3 further includes a support portion 32 connecting the push-pull portion 31 and the sealing portion 33, with the push-pull portion 31 and the sealing portion 33 respectively disposed at both ends of the support portion 32.

[0042] By providing support part 32 to support the entire sealing element 3, it is beneficial for the sealing part 33 and the push-pull part 31 to maintain their shape under the impact of the medium and to stably abut against the connector body 1. It is also beneficial to ensure the accuracy of the movement stroke during the movement of the entire sealing element 3, thereby achieving good sealing or connection.

[0043] In one implementation, such as Figure 2 As shown, the push-pull part 31 includes a push-pull ring 311, the sealing part 33 includes a sealing ring 331, and the sealing member 3 also includes a support frame 321 that connects the push-pull ring 311 and the sealing ring 331.

[0044] The end of the connector body 1 is annular, and the push-pull ring 311 has the same shape as the end of the connector body 1. The two abut against each other. As the connector body 1 extends into the connecting part 21, the push-pull ring 311 is pressed and moves, which at the same time drives the support frame 321 and the sealing ring 331 to move.

[0045] Furthermore, the push-pull ring 311 includes a first push-pull section 312 that abuts against the connector body 1 and a second push-pull section 313 that is connected to the sealing ring 331. The second push-pull section 313 is perpendicular to the first push-pull section 312, and the support frame 321 is arranged parallel to the second push-pull section 313.

[0046] The first push-pull section 312 is used to abut against the connector body 1 and move under the pressure of the connector body 1. The second push-pull section 313, together with the support frame 321, provides support for the first push-pull section 312. At the same time, the other end of the second push-pull section 313 away from the first push-pull section 312 is fixed to the sealing ring 331, further limiting the sealing ring 331.

[0047] Furthermore, in one embodiment, the second push-pull section 313 extends along the diameter of the first push-pull section 312, and the support frame 321 includes two support rods respectively disposed on both sides of the second push-pull section 313, which cooperate to achieve circumferential support.

[0048] As can be understood from the diagram, since the support frame 321 does not enclose the side wall of the seal 3, when the seal 3 moves and the sealing part 33 leaves the communication port 212, the seal 3 will not block the communication between the positioning part 22 and the connecting part 21.

[0049] In one embodiment, such as Figure 1 As shown, the connecting cavity 221 is provided with a fixing frame 222 for fixing the elastic reset member. The elastic reset member includes a spring 223 wrapped around the fixing frame 222. Both sides of the spring 223 are provided with clearance gaps with the inner wall of the connecting cavity 221.

[0050] The spring 223 is positioned and fixed by the fixing bracket 222, which reduces the impact of the spring 223 on the flow rate of the medium and ensures that the spring 223 can make stable contact with the sealing element 3, so as to achieve stable connection and sealing effect of the joint.

[0051] In one embodiment, such as Figure 1 As shown, the outer diameter of the connecting part 21 is larger than the outer diameter of the positioning part 22, and the inner diameter of the connecting cavity 211 is smaller than the inner diameter of the connecting cavity 221.

[0052] The outer diameter of the connecting part 21 is larger than that of the positioning part 22 to facilitate the connection of the connector body 1 and subsequent fixed assembly. The inner diameter of the connecting cavity 211 is smaller than that of the connecting cavity 221, so that a step 213 is naturally formed at the contact surface of the two, which can block the sealing element 3 and prevent the sealing part 33 from entering the upper connecting cavity 211.

[0053] Preferably, the connecting part 21 and the positioning part 22 are integrally formed. This ensures the overall stability of the connector mounting base 2 and facilitates the connection and positioning of the connecting part 21 and the positioning part 22 to remain stable in position when the connector body 1 and the sealing element 3 move within the connector mounting base 2, thus contributing to the stability of the connector mounting base 2 in use.

[0054] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0055] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0056] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A self-sealing connector, characterized in that, The device includes a connector body (1) and a connector mounting base (2). The connector mounting base (2) and the connector body (1) are respectively located at the connection ports of two connected pipelines. The connector mounting base (2) is provided with a connecting part (21) connected to the connector body (1) and a positioning part (22) fixed to the pipeline. A sealing element (3) is provided at the communication port (212) between the connecting part (21) and the positioning part (22). The connector body (1) presses against the sealing element (3) through the connecting part (21) to make the sealing element (3) move along the communication port (212) so that the communication port (212) is connected.

2. The self-sealing connector according to claim 1, characterized in that, The connecting part (21) is provided with a connecting cavity (211) for inserting the connector body (1), and the positioning part (22) is provided with a connecting cavity (221). The connecting cavity (211) and the connecting cavity (221) are connected through the connecting port (212). The inner walls of the connecting cavity (221) and the connecting cavity (211) are provided with a stepped part (213) at the connecting port (212). The sealing member (3) includes a push-pull part (31) located in the connecting cavity (211) and a sealing part (33) located in the connecting cavity (221). The push-pull part (31) abuts against the connector body (1), and the sealing part (33) can engage with the stepped surface of the stepped part (213) facing the connecting cavity (221).

3. The self-sealing connector according to claim 2, characterized in that, The connecting cavity (221) is provided with an elastic reset member. The bottom end of the elastic reset member and the sealing member (3) is provided with a sealing clearance area. The connector body (1) presses against the sealing member (3) in the connecting cavity (211) so that the sealing member (3) is disengaged from the step surface and abuts against the elastic reset member.

4. The self-sealing connector according to claim 3, characterized in that, The sealing element (3) abuts against the connector body (1) and moves along the positioning part (22). The two ends of the sealing element (3) abut against the connector mounting base (2) and the connector body (1) respectively. The side wall of the connecting part (21) is sealed and enclosed, and the side wall of the positioning part (22) is hollowed out.

5. The self-sealing connector according to claim 3, characterized in that, The sealing element (3) further includes a support (32) connecting the push-pull part (31) and the sealing part (33), wherein the push-pull part (31) and the sealing part (33) are respectively disposed at both ends of the support (32).

6. The self-sealing connector according to claim 5, characterized in that, The push-pull part (31) includes a push-pull ring (311), the sealing part (33) includes a sealing ring (331), and the sealing element (3) also includes a support frame (321) connecting the push-pull ring (311) and the sealing ring (331).

7. The self-sealing connector according to claim 6, characterized in that, The push-pull ring (311) includes a first push-pull section (312) that abuts against the connector body (1) and a second push-pull section (313) that is connected to the sealing ring (331). The second push-pull section (313) is perpendicular to the first push-pull section (312), and the support frame (321) is arranged parallel to the second push-pull section (313).

8. The self-sealing connector according to claim 3, characterized in that, The connecting cavity (221) is provided with a fixing frame (222) for fixing the elastic reset member. The elastic reset member includes a spring (223) wrapped around the fixing frame (222). Both sides of the spring (223) have clearance gaps with the inner wall of the connecting cavity (221).

9. The self-sealing connector according to claim 2, characterized in that, The outer diameter of the connecting part (21) is greater than the outer diameter of the positioning part (22), and the inner diameter of the connecting cavity (211) is smaller than the inner diameter of the connecting cavity (221).

10. The self-sealing connector according to claim 1, characterized in that, The connecting part (21) and the positioning part (22) are integrally formed.