A joint connection structure

Abstract

The utility model provides a kind of joint connecting structure, belong to joint connecting technical field.It solves the problems such as inconvenient disassembly of existing joint connecting structure joint.This joint connecting structure, including plug and bush, plug is inserted in bush, further include the connecting piece of E-shaped sheet, the length of protruding in the middle of connecting piece is shorter than the length of protruding on both sides of connecting piece, at least three sockets are set on the outer circumferential surface of bush, all socket is arranged along the circumferential direction of bush and is spaced apart, three protrusions of connecting piece are respectively inserted in three sockets and all form axial location with plug, the stem of connecting piece is located on the outer circumferential side of bush.This joint connecting structure can make joint disassembly convenient.

Description

Technical Field

[0001] This utility model belongs to the field of connector connection technology and relates to a connector connection structure. Background Technology

[0002] When using a piping system, it is necessary to connect two pipes or connect valves to the piping. Generally, joints are installed on the pipes or valves for connection. A common joint connection method is threaded connection, but threaded connections require rotating the joint several times, which is inconvenient.

[0003] To avoid the inconvenience caused by threaded connections, the two connectors are sometimes fixed together with a snap ring. For example, a combination valve disclosed in Chinese patent literature [Application No.: CN 201420623250.6; Publication No.: CN204176033U] is provided with a snap ring between the inlet end of the safety valve and the connector. An annular groove one is opened on the hole wall of the connector, and an annular groove two is opened on the outer circumferential surface of the inlet end of the safety valve. The snap ring is embedded in annular groove one and annular groove two. When installing the retaining ring, first embed the retaining ring into the second annular groove. Then, use your fingers or tweezers to press the retaining ring radially inward, compressing it completely into the second annular groove. Next, insert the inlet end of the safety valve into the connector. When fully inserted, the retaining ring resets, with its outer side embedded in the first annular groove. During insertion, the retaining ring must be pressed down continuously. However, when the retaining ring is close to the end face of the connector, the pressing space is minimized, making it difficult to press down. If it loosens, the retaining ring will eject radially, preventing it from entering the connector. Therefore, the retaining ring installation is inconvenient. Although this retaining ring connection eliminates the need for several rotations, installation remains inconvenient. Furthermore, once installed, the retaining ring cannot be removed. If the safety valve exceeds its service life or malfunctions, it cannot be replaced. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing a connector connection structure, which solves the technical problem of how to make the connector easy to assemble and disassemble.

[0005] The objective of this utility model can be achieved through the following technical solutions: A connector connection structure includes a plug and a sleeve, wherein the plug is inserted into the sleeve, characterized in that it further includes an E-shaped connector, wherein the length of the central protrusion of the connector is shorter than the length of the two side protrusions of the connector, and at least three insertion holes penetrating the inner wall of the sleeve are opened on the outer circumferential surface of the sleeve, all insertion holes being arranged at intervals along the circumference of the sleeve, the three protrusions of the connector being respectively inserted into the three insertion holes and forming axial limiting with the plug, and the main body of the connector being located on the outer circumferential side of the sleeve.

[0006] During installation, insert the plug into the sleeve, then hold the main stem of the connector and align the three protrusions of the connector with the sockets. Insert the three protrusions into the sockets, ensuring they form an axial stop with the plug, thus connecting the sleeve and the plug. At this point, the main stem of the connector is located on the outer circumference of the sleeve. The three protrusions insert into three sockets and form axial stops with the plug, meaning there are three stopping points between the connector and the sleeve, and between the connector and the plug. This ensures a stable connection between the connector, sleeve, and plug. Furthermore, all sockets are spaced apart circumferentially along the sleeve, creating a sidewall structure between adjacent sockets, further stabilizing the sleeve at the connection point. For disassembly, hold the main stem of the connector and pull the three protrusions out of the sockets, then pull the plug out of the sleeve. Installation requires only two insertion actions, and disassembly requires only two removal actions. Compared to the snap rings used in existing technologies, this connector structure is much easier to assemble and disassemble.

[0007] In the above-described connector connection structure, the inner circumferential surface of the sleeve has a retaining ring, and the outer circumferential surface of the plug has a convex ring. The convex ring is located inside the sleeve, and the convex ring is axially limited between the retaining ring and the connector.

[0008] During installation, insert the plug into the sleeve, with the plug abutting against the retaining ring. Then, insert the three protrusions of the connector into the three sockets. The three protrusions of the connector block the outer side of the convex ring to form an axial limit, making the connector connection structure easy to install.

[0009] In the above-mentioned connector connection structure, a limiting groove and a shoulder are provided on the outer peripheral surface of the plug. The limiting groove is opposite to the position of the socket, the shoulder abuts against the end face of the sleeve, and the three protrusions of the connector are all embedded in the limiting groove.

[0010] During installation, insert the plug into the sleeve, with the shoulder abutting against the end face of the sleeve. The positioning groove should be aligned with the socket. Then, insert the three protrusions of the connector into the three sockets, ensuring they are embedded in the positioning grooves and axially restricting the plug. The shoulder abutting against the end face of the sleeve creates axial restriction, aligning the socket with the positioning groove. This facilitates the insertion of the three protrusions from the socket into the positioning groove, making the connector connection structure easy to install.

[0011] In the above-described connector connection structure, the outer peripheral surface of the plug is a cylindrical surface, and the inner surfaces of the two protruding sides of the connector and the end face of the protruding middle part of the connector are all provided with arc-shaped limiting surfaces. All limiting surfaces are arranged on the same circumference and match the outer peripheral surface of the plug.

[0012] This design allows the plug to rotate, thus adjusting the circumferential position of the sleeve and the plug, facilitating the adjustment of the plug's circumferential position. On the other hand, it increases the contact area between the connector and the plug for axial positioning, making the connection between the connector and the plug more stable.

[0013] In the above-mentioned connector connection structure, the connector is provided with a disassembly hole, which is located at the connection between the main body of the connector and the middle protrusion of the connector, and at least a part of the disassembly hole is exposed on the outer periphery of the sleeve.

[0014] When disassembling the connector, you can insert a disassembly tool such as a pry bar or screwdriver into the disassembly hole and use leverage to pry the connector outward, making it easier to pull it out later.

[0015] In the aforementioned connector connection structure, the inner surfaces of the protrusions on both sides of the connector have outwardly inclined surfaces. On the same protrusion on both sides of the connector, the limiting surface is located between the inclined surface and the main body of the connector. The inclined surface serves as a guide, facilitating the insertion of the protrusions on both sides of the connector into place, thus making the connection between the plug and the sleeve convenient.

[0016] In the above-described connector connection structure, a sealing ring is provided between the convex ring and the sleeve. The sealing ring ensures a seal at the connection between the plug and the sleeve.

[0017] In the above-described connector connection structure, there are four sockets. Two sockets are symmetrically arranged and can both accommodate the protrusion in the middle of the connector, while the other two sockets can accommodate the protrusions on either side of the connector. This allows the connector to be inserted into the sleeve from two directions, making the connection convenient.

[0018] Compared with the prior art, the present invention has the following advantages: The connector has an E-shaped plate structure. The length of the central protrusion is shorter than the lengths of the two side protrusions. At least three insertion ports penetrating the inner wall of the sleeve are provided on the outer circumference of the sleeve. All insertion ports are spaced apart circumferentially along the sleeve. The three protrusions of the connector are inserted into the three insertion ports and axially limit the connection with the plug. The main body of the connector is located on the outer circumference of the sleeve, ensuring a stable connection and easy assembly / disassembly. A disassembly hole is provided on the connector, forming a leverage point to facilitate the disassembly of the sleeve and plug. The disassembly hole is located at the connection between the main body of the connector and the central protrusion, ensuring the structural stability of the connector and the overall stability of the joint connection. Attached Figure Description

[0019] Figure 1 This is a perspective view of Embodiment 1 of the connector connection structure.

[0020] Figure 2 This is a cross-sectional view of Embodiment 1 of the connector connection structure.

[0021] Figure 3 yes Figure 2 A cross-sectional view along the AA direction.

[0022] Figure 4 This is a perspective view of the connector and sleeve being separated in Embodiment 1 of this connector connection structure.

[0023] Figure 5 This is a cross-sectional view of Embodiment 2 of the connector connection structure.

[0024] In the diagram, 1 is the plug; 1a is the protruding ring; 1b is the limiting groove; 1c is the shoulder; 2 is the sleeve; 2a is the socket; 2b is the retaining ring; 3 is the connector; 3a is the main body; 3b is the protrusion; 3b1 is the limiting surface; 3b2 is the inclined surface; 3c is the disassembly hole; and 4 is the sealing ring. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] Example 1

[0027] like Figure 1 As shown, a connector connection structure includes a plug 1 and a sleeve 2 that fit together, with a connector 3 connecting the plug 1 and the sleeve 2. Figure 2 and Figure 3 As shown, both the plug 1 and the sleeve 2 are cylindrical, and the connector 3 is E-shaped. The length of the central protrusion 3b of the connector 3 is shorter than the length of the two side protrusions 3b. At least three insertion ports 2a are provided on the outer circumferential surface of the sleeve 2, penetrating the inner wall of the sleeve 2. All insertion ports 2a are arranged at intervals along the circumference of the sleeve 2. The three protrusions 3b of the connector 3 are respectively inserted into the three insertion ports 2a and are axially limited with the plug 1. The main body 3a of the connector 3 is located on the outer circumferential side of the sleeve 2.

[0028] like Figure 2 and Figure 3As shown, the outer circumferential surface of the plug 1 is cylindrical. The inner surfaces of the two side protrusions 3b of the connector 3 and the end face of the middle protrusion 3b of the connector 3 are all provided with arc-shaped limiting surfaces 3b1. All limiting surfaces 3b1 are located on the same circumference and match the outer circumferential surface of the plug 1. The connector 3 is provided with a disassembly hole 3c, located at the connection between the main body 3a of the connector 3 and the middle protrusion 3b of the connector 3. At least a portion of the disassembly hole 3c is exposed on the outer circumferential side of the sleeve 2. The inner surfaces of the two side protrusions 3b of the connector 3 each have outwardly inclined surfaces 3b2 that connect to the limiting surfaces 3b1. On the same protrusion 3b on both sides of the connector 3, the limiting surface 3b1 is located between the inclined surface 3b2 and the main body 3a of the connector 3, with a rounded transition between the limiting surface 3b1 and the inclined surface 3b2. The inner circumferential surface of the sleeve 2 has a retaining ring 2b, and the outer circumferential surface of the plug 1 has a protruding ring 1a. The protruding ring 1a is located inside the sleeve 2, and its axial direction is limited between the retaining ring 2b and the connector 3. A sealing ring 4 is provided between the plug 1 and the sleeve, and the sealing ring 4 is embedded in the protruding ring 1a. When the plug 1 is inserted into the sleeve 2, the sealing ring 4 and the sleeve 2 form a seal. In this embodiment, there are four sockets 2a, two of which are symmetrically arranged and can both be inserted into the protrusion 3b in the middle of the connector 3, and the other two sockets 2a can be inserted into the protrusions 3b on both sides of the connector 3 respectively. Alternatively, only three sockets 2a can be provided.

[0029] like Figure 1 and Figure 2 As shown, when connecting the sleeve 2 and the plug 1, the plug 1 is inserted into the sleeve 2, with the end face of the plug 1 abutting against the retaining ring 2b of the sleeve 2 so that the protruding ring 1a is located axially inside the socket 2a. Then, the three protrusions 3b of the connector 3 are inserted into the three sockets 2a, as shown. Figure 3 As shown, the protrusions 3b on both sides of the connector 3 engage with both sides of the plug 1. The inner parts of the protrusions 3b on both sides of the connector 3 and the end of the middle protrusion 3b are located in the inner hole of the sleeve 2 and block the axial outer side of the convex ring 1a. In this way, the plug 1 is connected to the sleeve 2, and the three protrusions 3b of the connector 3 form three limiting parts, making the connector connection structure stable. Figure 4 As shown, when it is necessary to remove plug 1, insert a disassembly tool such as a pry bar or screwdriver into the disassembly hole 3c, pry connector 3 outwards and then pull it out, and then pull plug 1 out of sleeve 2. Installation requires only two insertion actions, making the connection easy to install. The disassembly hole 3c provides a point of leverage for removing connector 3, making it easy to remove. Therefore, this connector connection structure facilitates easy assembly and disassembly of the connector.

[0030] Example 2

[0031] like Figure 5As shown, a limiting groove 1b and a shoulder 1c are provided on the outer peripheral surface of the plug 1. The limiting groove 1b is positioned opposite to the socket 2a, and the shoulder 1c abuts against the end face of the sleeve. The three protrusions 3b of the connector 3 are all embedded in the limiting groove 1b. Other structures are the same as in Embodiment 1.

[0032] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A connector connection structure, comprising a plug (1) and a sleeve (2), wherein the plug (1) is inserted into the sleeve (2), characterized in that, It also includes an E-shaped connector (3), the length of the middle protrusion (3b) of the connector (3) is shorter than the length of the two side protrusions (3b) of the connector (3), at least three sockets (2a) penetrating the inner wall of the sleeve (2) are provided on the outer peripheral surface of the sleeve (2), all sockets (2a) are arranged at intervals along the circumference of the sleeve (2), the three protrusions (3b) of the connector (3) are respectively inserted into the three sockets (2a) and all form axial limiting with the plug (1), the main body (3a) of the connector (3) is located on the outer peripheral side of the sleeve (2).

2. The connector connection structure according to claim 1, characterized in that, The inner circumferential surface of the sleeve (2) has a retaining ring (2b), and the outer circumferential surface of the plug (1) has a convex ring (1a). The convex ring (1a) is located inside the sleeve (2), and the convex ring (1a) is axially limited between the retaining ring (2b) and the connector (3).

3. The connector connection structure according to claim 1, characterized in that, The plug (1) has a limiting groove (1b) and a shoulder (1c) on its outer peripheral surface. The limiting groove (1b) is opposite to the socket (2a). The shoulder (1c) abuts against the end face of the sleeve (2). The three protrusions (3b) of the connector (3) are all embedded in the limiting groove (1b).

4. The joint connection structure according to any one of claims 1-3, characterized in that, The outer peripheral surface of the plug (1) is a cylindrical surface. The inner surfaces of the two protrusions (3b) on both sides of the connector (3) and the end face of the middle protrusion (3b) of the connector (3) are all provided with arc-shaped limiting surfaces (3b1). All limiting surfaces (3b1) are arranged on the same circumference and match the outer peripheral surface of the plug (1).

5. The connector connection structure according to any one of claims 1-3, characterized in that, The connector (3) is provided with a disassembly hole (3c). The disassembly hole (3c) is located at the connection between the main body (3a) of the connector (3) and the middle protrusion (3b) of the connector (3). At least a part of the disassembly hole (3c) is exposed on the outer periphery of the sleeve (2).

6. The connector connection structure according to claim 4, characterized in that, The inner surfaces of the protrusions (3b) on both sides of the connector (3) have outwardly inclined surfaces (3b2), and the limiting surface (3b1) on the same protrusion (3b) on both sides of the connector (3) is located between the inclined surface (3b2) and the main body (3a) of the connector (3).

7. The connector connection structure according to claim 2, characterized in that, A sealing ring (4) is provided between the convex ring (1a) and the sleeve (2).

8. The joint connection structure according to any one of claims 1-3, characterized in that, There are four sockets (2a), two of which are symmetrically arranged and can be inserted into the protrusion (3b) in the middle of the connector (3), and the other two sockets (2a) can be inserted into the protrusions (3b) on both sides of the connector (3).

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