CN111779907A - A water pipe quick connection structure - Google Patents

Abstract

The invention proposes a quick-connecting structure for water pipes, including a male joint and a female joint. An outer sealing groove, a convex ring and an outer annular groove are arranged on the outer side of one end of the male joint away from the connecting pipe in sequence, and an O-shaped groove is arranged in the outer sealing groove. A sealing ring, a first C-shaped snap ring is arranged in the outer annular groove, a connecting portion is arranged at one end of the female joint, a threaded portion is arranged at the other end, and an inner annular groove is arranged on the inner side of one end of the connecting portion. A second C-shaped snap ring is arranged in the inner annular groove, and when the male connector is inserted into the female connector, the convex ring is driven to abut against the side wall of the second C-shaped snap ring for locking connection between the male connector and the female connector. The water pipe quick-connection structure proposed by this technical solution adopts a C-shaped snap ring to realize quick connection, and the connection is firm and not easy to loosen. When separating, it only needs to apply an external force along the insertion direction and then reversely apply a pulling force to separate. The structure is simple, easy to assemble, and easy to manufacture. low cost.

Description

A water pipe quick connection structure

technical field

The invention relates to a joint, in particular to a water pipe quick connection structure.

Background technique

The water pipe quick joint is a component used for water pipe connection. Most of the existing water pipe quick joints are made of plastic, and their design structure is often complicated. Short lifespan.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides a water pipe quick connection structure.

The technical scheme of the present invention is realized as follows:

The invention discloses a water pipe quick connection structure, comprising a male joint and a female joint. An outer sealing groove, a convex ring and an outer annular groove are arranged on the outer side of one end of the male joint away from the connecting pipe in sequence, and an O-shaped groove is arranged in the outer sealing groove. A sealing ring, a first C-shaped snap ring is arranged in the outer annular groove, a connecting portion is arranged at one end of the female joint, a threaded portion is arranged at the other end, and an inner annular groove is arranged on the inner side of one end of the connecting portion. A second C-shaped snap ring is arranged in the inner annular groove. When the male connector is inserted into the female connector, the convex ring is driven to abut against the side wall of the second C-shaped snap ring for locking connection between the male connector and the female connector.

Further, an inner inclined wall is provided on the inner side of one end of the second C-shaped snap ring, and the inner inclined wall is arranged in cooperation with the outer inclined wall provided on the outer side of the first C-shaped snap ring.

Further, the outer diameter of the first C-shaped snap ring is larger than the inner diameter of the second C-shaped snap ring, and smaller than the outer diameter of the second C-shaped snap ring.

Further, the first C-shaped snap ring and the second C-shaped snap ring are both processed from elastic materials.

Further, an O-shaped groove is provided on the inner side of one end of the connecting portion away from the inner annular groove, and a damping O-ring is arranged in the O-shaped groove, and the damping O-ring is used for damping the connection between the male joint and the female joint. connect.

Further, a one-way valve is provided in the threaded portion, and the one-way valve is used to restrict the one-way flow of the water flow.

Implementing a water pipe quick connection structure of the present invention has the following beneficial technical effects:

Different from the complex structure of the water pipe quick joint in the prior art, and the connection and disassembly and separation are inconvenient, the advantages of the water pipe quick joint structure provided by the present invention are: the C-shaped snap ring is used to realize the quick connection, the connection is firm and not easy to loosen, and the separation The utility model can be separated only by applying external force along the insertion direction and then applying pulling force in the opposite direction. The utility model has the advantages of simple structure, convenient assembly and low manufacturing cost.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic diagram of a connection state of a water pipe quick-connect structure according to an embodiment of the present invention;

2 is a sectional view of a connection state of a water pipe quick-connection structure according to an embodiment of the present invention;

3 is a schematic diagram of a separation state of a water pipe quick connection structure according to an embodiment of the present invention;

4 is a sectional view of a separation state of a water pipe quick connection structure according to an embodiment of the present invention;

5 is a schematic structural diagram of a first C-shaped snap ring in a water pipe quick connection structure according to an embodiment of the present invention;

6 is a schematic structural diagram of a second C-shaped snap ring in a water pipe quick connection structure according to an embodiment of the present invention.

Marked in the figure, 1-male connector, 2-female connector, 11-connector, 12-outer sealing groove, 13-convex ring, 14-outer annular groove, 15-O-ring seal, 16-first C-shaped snap ring , 161-outer inclined wall, 21-connection part, 22-thread part, 23-inner annular groove, 24-second C-shaped snap ring, 241-inner inclined wall, 25-O-shaped groove, 26-damping O-ring , 27-check valve.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to FIGS. 1 to 6 , in an embodiment of the present invention, a quick connection structure for a water pipe includes a male joint 1 and a female joint 2 . The male joint 1 is provided with an outer sealing groove 12 and a convex ring on the outer side of one end away from the nozzle 11 in sequence. 13 and outer annular groove 14, the outer sealing groove 12 is provided with an O-shaped sealing ring 15, the outer annular groove 14 is provided with a first C-shaped snap ring 16, and one end of the female connector 2 is provided with a connecting portion 21 , the other end is provided with a threaded portion 22, an inner annular groove 23 is provided on the inner side of one end of the connecting portion 21, and a second C-shaped snap ring 24 is arranged in the inner annular groove 23, and the male connector 1 is inserted into the female connector 2 When the protruding ring 13 is brought into contact with the side wall of the second C-shaped snap ring 24, the male connector 1 and the female connector 2 are locked and connected. When the male connector 1 and the female connector 2 are inserted and connected, the protruding The ring 13 is in contact with the side wall of the second C-shaped snap ring 24 for the locking connection between the male connector 1 and the female connector 2; when the nozzle 11 is pushed toward the female connector 2, the first C-shaped snap ring 16 is driven to The inner ring of the second C-shaped snap ring 24 moves, the second C-shaped snap ring 24 is axially expanded, the convex ring 13 is separated from the side wall of the second C-shaped snap ring 24, and the male joint 1 is connected to the The female connector 2 can be separated, wherein there are two outer sealing grooves 12 and two O-rings 15 for sealing.

An inner inclined wall 241 is provided on the inner side of one end of the second C-shaped snap ring 24 .

The outer diameter of the first C-shaped snap ring 16 is larger than the inner diameter of the second C-shaped snap ring 24 and smaller than the outer diameter of the second C-shaped snap ring 24 .

The first C-shaped snap ring 16 and the second C-shaped snap ring 24 are both processed from elastic materials.

An O-shaped groove 25 is provided on the inner side of one end of the connecting portion 21 away from the inner annular groove 23, and a damping O-ring 26 is arranged in the O-shaped groove 25, and the damping O-ring 26 is used for damping the male connector 1 and the female Connection of connector 2.

The threaded portion 22 is provided with a one-way valve 27 , and the one-way valve 27 is used to restrict the flow of water in one direction.

Further explanation:

The invention provides a water pipe quick connection structure, and its working principle is as follows:

1. When the male connector is connected to the female connector, when the male connector is inserted into the connecting part of the female connector and is damped by the damping O-ring, the insertion of the male connector is stopped. Since the male connector is inserted into the connecting part of the female connector, the first The elastic action of the two C-shaped snap rings expands radially, and most of the front end of the male joint can enter the connecting portion through the inner ring of the second C-shaped snap ring, and the insertion action is stopped when the front end of the male joint abuts against the damping O-ring , when a side wall of the second C-shaped snap ring is in contact with a side wall of the convex ring on the male connector, the male connector and the female connector are locked and connected without being disengaged.

2. When the male joint is separated from the female joint, the pressure is applied to the male joint in the direction of the female joint through the nozzle. Since the damping O-ring is an elastic material, the end of the male joint has space to move in the direction of the female joint. At this time, the male joint The side wall of the convex ring is separated from the side wall of the second C-shaped snap ring, and at the same time, the first C-shaped snap ring is driven to move toward the inner ring of the second snap ring. The second C-shaped snap ring is affected by the first C-shaped ring. The force expands in the direction of the bottom of the inner annular groove. When the inner diameter of the second C-shaped snap ring is larger than the outer diameter of the convex ring of the male joint, an external force is applied in the direction away from the female joint, and the front end of the male joint starts from the second The inner ring of the C-ring is withdrawn, and the male joint and the female joint are separated.

Implementing a water pipe quick connection structure of the present invention has the following beneficial technical effects:

Different from the complex structure of the water pipe quick joint in the prior art, and the connection and disassembly and separation are inconvenient, the advantages of the water pipe quick joint structure provided by the present invention are: the C-shaped snap ring is used to realize the quick connection, the connection is firm and not easy to loosen, and the separation The utility model can be separated only by applying external force along the insertion direction and then applying pulling force in the opposite direction. The utility model has the advantages of simple structure, convenient assembly and low manufacturing cost.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (6)

1. A water pipe quick-connecting structure, comprising a male joint and a female joint, is characterized in that, an outer sealing groove, a convex ring and an outer annular groove are sequentially provided on the outer side of one end of the male joint away from the connecting pipe, and the outer sealing groove is provided with an outer sealing groove, a convex ring and an outer annular groove. O-shaped sealing ring, the outer annular groove is provided with a first C-shaped snap ring, one end of the female connector is provided with a connecting portion, the other end is provided with a threaded portion, and an inner annular groove is provided on the inner side of one end of the connecting portion, The inner annular groove is provided with a second C-shaped snap ring, and when the male connector is inserted into the female connector, the convex ring is driven to abut the side wall of the second C-shaped snap ring for the locking connection between the male connector and the female connector . 2 . The water pipe quick connection structure according to claim 1 , wherein an inner inclined wall is provided on the inner side of one end of the second C-shaped snap ring, and the inner inclined wall is connected with the first C-shaped snap ring. 3 . The outer sloping wall on the outer side is matched and arranged. 3. The water pipe quick connection structure according to claim 1 or 2, wherein the outer diameter of the first C-shaped snap ring is larger than the inner diameter of the second C-shaped snap ring, and is smaller than the second C-shaped snap ring outer diameter of the snap ring. 4 . The water pipe quick connection structure according to claim 1 or 2 , wherein the first C-shaped snap ring and the second C-shaped snap ring are both processed from elastic materials. 5 . 5 . The water pipe quick connection structure according to claim 1 , wherein an O-shaped groove is provided on the inner side of one end of the connecting portion away from the inner annular groove, and a damping O-ring is provided in the O-shaped groove, 6 . The damping O-ring is used for damping the connection between the male connector and the female connector. 6 . The water pipe quick connection structure according to claim 1 , wherein a one-way valve is provided in the threaded portion, and the one-way valve is used to restrict the one-way flow of water. 7 .

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