CN206280640U - A kind of snap joint public plug - Google Patents

Abstract

The utility model relates to a quick disassembly and assembly connection device, in particular to a quick connector male plug. A quick connector male plug, comprising a plug, a plug valve core and a plug valve seat, the inner wall of the middle part of the plug is fixed with a plug valve seat, a plug valve core is arranged in front of the plug valve seat, and the plug valve seat and the plug valve core A plug spool spring is arranged between, a runner hole is arranged on the outer wall of the middle part of the plug spool, and an anti-retraction groove is arranged on the outer wall of the plug. The advantages of the utility model are: the unique valve design, instead of the original valve core and the inner wall forming a gap as a flow channel, the front part of the valve core is still sealed, and there is no fluid loss during operation.

Description

A quick connector male plug

technical field

The utility model relates to a quick disassembly and assembly connection device, in particular to a quick connector male plug.

Background technique

Quick connectors include hydraulic quick connectors and various fluid quick connectors. It is a connection device that quickly connects or disconnects pipelines and realizes quick disassembly. Because the quick connector has a two-way check function and the pipeline is disconnected without leakage, it is widely used in the fields of petroleum, metallurgy, hydropower, construction machinery, ships, and electromechanical equipment. The connection structure of the quick connector is the most important part of the quick connector. Its connection method and structure directly determine the convenience, reliability and product quality of the quick connector. The quick connector consists of two parts, a male plug and a female socket. The connection structure between the male plug and the female socket is commonly used to support the two spools against each other, so that the flow channel is opened. This mechanism is simple, but it encounters devices that require higher performance. , a tighter connection structure is required.

Contents of the invention

In order to solve the above-mentioned technical problem of satisfying the stricter connection structure and achieving higher performance, the utility model provides a quick connector male plug.

The technical scheme of the utility model is as follows:

A quick connector male plug, including a plug, a plug valve core and a plug valve seat, the inner wall of the middle part of the plug is fixed with a plug valve seat, the plug valve seat is provided with a plug valve core in front, and the plug valve seat and the plug valve core A plug spool spring is arranged between them, a runner hole is arranged on the outer wall of the middle part of the plug spool, and a back-stop groove for holding the steel ball is arranged on the outer wall of the plug.

The inner wall of the plug is provided with a plug valve seat retaining ring for blocking the plug valve seat. The head of the plug valve core is a cylinder, and the back of the cylinder is a conical body. It is in close contact with the inclined surface of the inner wall of the plug, and the outer wall of the rear part of the plug valve core is smooth, and moves on the smooth inner wall of the plug.

Using the technical scheme of the utility model and the unique valve design, instead of the gap formed between the original valve core and the inner wall as a flow channel, the front part of the valve core is still sealed, so there is no fluid loss during operation; when the joint is disconnected, the valve core is automatically closed , to prevent leakage; after the joint is connected, the valve opens automatically, and within the rated working range, the fluid is always kept unblocked; the key parts are specially heat-treated with special materials, so they have good durability; the reliable ball lock mechanism will match the two halves Combined together, the female socket and the male plug are tightly manufactured with solid bar material, and the connection is convenient and quick, high in strength, good in resistance, working pressure can reach 35MPa, high temperature resistance can reach -40°C to 200°C, and can be used for plugging and unplugging The number of times can reach 500,000 times.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram of a female socket of the present invention;

Fig. 3 is a structural schematic diagram of an embodiment of the utility model.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Example

A quick connector male plug as shown in Figure 1 includes a plug 2, a plug valve core 4 and a plug valve seat 12, the inner wall of the middle part of the plug 2 is fixed with a plug valve seat 12, and the front of the plug valve seat 12 is provided with A plug spool 4, a plug spool spring 14 is arranged between the plug valve seat 12 and the plug spool 4, the outer wall of the middle part of the plug spool 4 is provided with a flow channel hole, and the outer wall of the plug 2 is provided with a back-stop groove for blocking the steel ball.

The inner wall of the plug 2 is provided with a plug valve seat retaining ring 11 for blocking the plug valve seat 12. The head of the plug valve core 4 is a cylinder, and the back of the cylinder is a circular frustum. Circle 7, the round table body is in close contact with the inclined surface of the plug 2 inner wall, and the outer wall of the rear part of the plug spool 4 is smooth, and moves on the smooth plug 2 inner wall. The rear part of the plug spool 4 is in contact with the inner wall and moves on the inner wall. The outer wall of the middle part of the plug spool 4 is not in contact with the inner wall, and there is a flow channel hole, which passes through the back of the plug spool 4. A new flow channel method is adopted, and the design is ingenious. The structure is novel and suitable for various needs.

As shown in Figures 2 and 3, when in use, the male plug and the female socket are matched. The female socket includes a housing 1, a housing valve core 6 and a housing valve seat 8, and the rear part of the housing 1 is covered with a housing joint body 5 , the inner wall of the middle part of the housing 1 is fixed with a housing valve seat 8, that is, the connection between the housing 1 and the inner wall of the housing joint body 5 is provided with a plug valve seat 12, and the connection is provided with a housing valve seat O-ring 21, so A plug valve core 4 is provided in front of the plug valve seat 12, and a housing valve core 6 is provided in front of the housing valve seat 8. The valve sleeve 15 is connected, the housing valve sleeve 15 and the housing valve seat 8 are provided with a housing valve core spring 20, and the housing valve core 6 and the housing valve sleeve 15 are provided with a sealing ring 13 and a housing valve sleeve Y Type ring 22, sealing ring 13 and shell valve sleeve Y-ring 22 are in contact with the inner wall of shell 1, shell spool 6 is provided with shell spool rod 19, and the head of shell spool rod 19 is covered with spool Rod pressure pad 9, the head of the housing valve core rod 19 is stamped to form an annular bent sleeve, the valve core rod pressure pad 9 is in close contact with the housing valve core 6, and the rear part of the housing valve core rod 19 forms a slope, the slope and the housing The outer wall of the rear part of the valve seat 8 is in contact with, and the outer wall of the front part of the housing 1 is provided with a jacket 3, and the jacket 3 is connected with a steel ball 16, and the steel ball 16 passes through the housing 1, and a jacket spring is arranged between the jacket 3 and the plug connector body 5 10. The inner wall of the plug 2 is provided with a plug valve seat retaining ring 11 for blocking the plug valve seat 12. The head of the plug valve core 4 is a cylinder, and the back of the cylinder is a round table body. Ring 7, the round table body is in close contact with the inclined surface of the inner wall of the plug 2 to ensure sealing, the outer wall of the rear part of the plug spool 4 is smooth, and moves on the smooth inner wall of the plug 2, and a shell is provided between the head of the housing spool 6 and the sealing ring 13 The body valve core O-ring 17, the housing O-ring 23 is provided between the sealing ring 13 and the inner wall of the housing 1, and the housing valve sleeve O-ring is provided between the sealing ring 13 and the housing valve housing Y-ring 22 18. The head of the plug 2 forms an annular mouth, the plug 2 is inserted into the housing 1, the annular mouth pushes the housing spool 6 to move, the housing spool 6 moves away from the housing spool rod 19, and the housing spool rod 19 does not Due to the action of the plug spool 4, the housing spool rod 19 is also far away from the rear of the housing valve seat 8, and the steel ball 16 locks the anti-retreat groove. That is, due to the annular curved sleeve at the head of the valve core rod 19 of the housing, in order to ensure the installation angle of the valve core rod pressure pad 9, the installation angle is usually 45 degrees. Small, and the multi-layer protection in the housing 1 of this scheme, the two sealing settings on the housing spool rod 19, the flow channel hole on the plug spool 4 in the plug 2, the structure is novel, and the effect is very good.

Claims (2)

1. A quick connector male plug, including a plug (2), a plug valve core (4) and a plug valve seat (12), characterized in that: the middle inner wall of the plug (2) is fixed with a plug valve seat (12) , a plug spool (4) is provided in front of the plug valve seat (12), a plug spool spring (14) is provided between the plug valve seat (12) and the plug spool (4), and the plug spool (4) The outer wall of the middle part is provided with flow channel holes, and the outer wall of the plug (2) is provided with anti-retreat grooves for clamping steel balls. 2. A quick connector male plug according to claim 1, characterized in that: the inner wall of the plug (2) is provided with a plug valve seat retaining ring (11) for blocking the plug valve seat (12), and the plug valve core (4) The head is a cylinder, and behind the cylinder is a conical body. The plug spool O-ring (7) is set in the depression at the connection between the two. The conical body is in close contact with the inclined surface of the inner wall of the plug (2), and the plug spool (4) ) is smooth on the rear outer wall, running on the smooth inner wall of the plug (2).