CN213117977U

CN213117977U - Connection seal structure of carat pipe

Info

Publication number: CN213117977U
Application number: CN202021893088.1U
Authority: CN
Inventors: 蔡荣俊
Original assignee: Putian Shengrong Pipe Industry Co ltd
Current assignee: Putian Shengrong Pipe Industry Co ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-05-04
Anticipated expiration: 2030-09-02

Abstract

A connection sealing structure of a carat pipe comprises a socket joint and a bell joint, wherein one end of the socket joint can be inserted into the bell joint; the inner wall of the socket joint is provided with a circle of slope surface, and when the socket joint is inserted into the socket joint, the front end of the first sealing ring props against the slope surface. The flange and the first sealing ring are of an integrated structure, the baffle can be buckled at the front end of the socket joint, and the first sealing ring cannot be pushed, rolled and positioned when the socket joint is inserted into the socket joint. After the socket joint is inserted into the socket joint, the slope of the socket joint props against the position of the check ring at the front end of the first sealing ring, and the sealing effect is improved.

Description

Connection seal structure of carat pipe

Technical Field

The utility model belongs to the technical field of the carat union coupling technique and specifically relates to a connection seal structure of carat pipe is related to.

Background

The carat pipe is connected in a mode of electric hot melting, and the joints of the two carat pipes are fused together through an embedded electric hot melting wire. Although the connection method has good connection effect, the time required for connection is long, and the construction conditions are more. The connection arrangement, which is sealed by means of a socket connection and a rubber ring, is also used today on carat pipes. However, when the pipe diameter of the carat pipe is relatively large, the rubber ring is prone to poor in turning, position deviation and the like due to different degrees of tightness at different positions in the process of inserting the carat pipe, and water seepage is poor after the carat pipe is connected. Widening the width of the rubber ring can improve sealing to some extent, but for a large diameter carat tube, a wide rubber ring is very difficult to telescope into a socket joint.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the aforesaid not enough, provide the connection seal structure of sealed effectual carat pipe.

In order to achieve the above object, the technical solution of the present invention is: a connection sealing structure of a carat pipe comprises a socket joint and a bell joint, wherein one end of the socket joint can be inserted into the bell joint; the inner wall of the socket joint is provided with a circle of slope surface, and when the socket joint is inserted into the socket joint, the front end of the first sealing ring props against the slope surface. The flange and the first sealing ring are of an integrated structure, the baffle can be buckled at the front end of the socket joint, and the first sealing ring cannot be pushed, rolled and positioned when the socket joint is inserted into the socket joint. After the socket joint is inserted into the socket joint, the slope of the socket joint props against the position of the check ring at the front end of the first sealing ring, and the sealing effect is improved.

The carat pipe may cause leakage of the first seal ring due to bending, deflection and the like of the connection position caused by ground subsidence and the like generated after being buried or buried underground for a period of time, and the second seal ring may block the leakage. And the width of the first sealing ring and the second sealing ring is not large, so that the first sealing ring and the second sealing ring can be easily installed on the socket joint.

Preferably, the peripheries of the first sealing ring and the second sealing ring are provided with a plurality of convex triangular sealing rings. At least two triangular sealing rings are arranged on the peripheral surface of the first sealing ring. At least two triangular sealing rings are arranged on the peripheral surface of the second sealing ring. The first seal ring and the second seal ring can be sealed by deformation of the triangular seal ring.

Preferably, the second sealing ring is a rubber ring which swells when meeting water. The first sealing ring is a rubber sealing ring made of common materials, and the second sealing ring can be soaked when the first sealing ring is seeped, so that the second sealing ring is expanded to seal the connecting position.

Preferably, the socket joint is provided with a ring groove with the width matched with that of the second sealing ring at the rear side of the convex ring, and the second sealing ring is sleeved in the ring groove.

Preferably, the heights of a plurality of sealing rings on the peripheries of the first sealing ring and the second sealing ring are sequentially higher from front to back.

Preferably, the rear end face of the rearmost seal ring on the outer periphery of the first seal ring is aligned with the rear end face of the first seal ring, and the rear end face of the rearmost seal ring on the outer periphery of the second seal ring is aligned with the rear end face of the second seal ring. After the socket joint is inserted into the socket joint, the rear end of the first sealing ring can be propped against by the convex ring, the rear end of the second sealing ring can be propped against by the side wall of the annular groove, and when the rear end surfaces of the first sealing ring and the second sealing ring are large, the first sealing ring and the second sealing ring are not easy to run.

Through adopting foretell technical scheme, the beneficial effects of the utility model are that: the utility model discloses there are two sealing washers, increase hookup location's leakproofness. The baffle of the first sealing ring can be buckled at the front end of the socket joint, and the first sealing ring cannot be pushed, rolled and positioned when the socket joint is inserted into the socket joint. After the socket joint is inserted into the socket joint, the slope of the socket joint props against the position of the check ring at the front end of the first sealing ring, and the sealing effect is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view after the socket connection of the present invention;

fig. 3 is a schematic structural diagram of the first seal ring.

Description of the main reference numerals:

a socket joint 1; a convex ring 11; a ring groove 12; a socket joint 2; a slope surface 21; a first seal ring 3; a second seal ring 4; a baffle 31; and a seal ring 32.

Detailed Description

The invention is further described with reference to the following figures and specific examples.

As shown in fig. 1-3, the present invention relates to a connecting and sealing structure for carat pipe, which comprises a socket joint 1, a socket joint 2, a first sealing ring 3 and a second sealing ring 4. One end of the socket joint 1 can be inserted into the socket joint 2. The two ends of the carat pipe are respectively provided with a socket joint 1 and a socket joint, and when two carat pipes are connected, one carat pipe socket joint is inserted into the socket joint of the other carat pipe. The periphery of spigot joint 1 is equipped with bulge loop 11, and the front side of bulge loop 11 is located to first sealing washer 3, and the rear side of bulge loop 11 is located to second sealing washer 4, and spigot joint 1 is equipped with width and the annular 12 that the second sealing washer width matches in the rear side of bulge loop 11, and second sealing washer 4 embolias the ring, 12 in, the bulge loop separates first sealing washer 3 and second sealing washer 4. First sealing washer 3 is the rubber seal of material commonly used, and second sealing washer 4 is for meeting water inflation's rubber circle.

As shown in fig. 2 and 3, the first seal ring 3 is fitted around the outer periphery of the front end of the spigot, and the front end of the first seal ring 3 is provided with a rib 31 for hooking the front end surface of the spigot 1. The flange 31 and the first sealing ring 3 are of an integral structure, and the baffle 31 can buckle the front end face of the socket joint 1 on the front side of the front end face of the socket joint 1 to limit the backward movement of the first sealing ring 3. The flange is annular, and the internal diameter of flange is greater than the aperture of socket joint, avoids the baffle to increase the resistance that the fluid in the kelly pipe flows. A circle of slope surface 21 is arranged on the inner wall of the socket joint 2, when the socket joint 1 is inserted into the socket joint 2, the front end of the first sealing ring 3 props against the slope surface 21, and the front end surface of the first sealing ring 3 is the front end surface of the flange.

The peripheries of the first sealing ring 3 and the second sealing ring 4 are provided with two convex triangular sealing rings 32. The heights of the two sealing rings on the peripheries of the first sealing ring 3 and the second sealing ring 4 are sequentially increased from front to back. The rear end face of the seal ring 32 on the rearmost side of the outer periphery of the first seal ring 3 is aligned with the rear end face of the first seal ring 3, and the rear end face of the seal ring on the rearmost side of the outer periphery of the second seal ring is aligned with the rear end face of the second seal ring.

When two carats are connected, the second sealing ring 4 is sleeved in the annular groove of the socket joint 1, the first sealing ring is sleeved at the front end of the socket joint 1, the socket joint 1 is inserted into the socket joint 2 until the front end of the first sealing ring 3 props against the slope surface in the socket joint 2.

The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited to the above description, and all the equivalent changes and decorations made according to the claims of the present invention should still fall within the scope covered by the present invention.

Claims

1. A connection sealing structure of a carat pipe comprises a socket joint and a bell joint, wherein one end of the socket joint can be inserted into the bell joint; the inner wall of the socket joint is provided with a circle of slope surface, and when the socket joint is inserted into the socket joint, the front end of the first sealing ring props against the slope surface.

2. The joint sealing structure of a carat pipe as claimed in claim 1, wherein the first and second sealing rings are provided with a plurality of protruding triangular sealing rings on the outer periphery thereof.

3. The joint sealing structure of carat pipe according to claim 1, wherein the second sealing ring is a water-swellable rubber ring.

4. A carat pipe joint seal structure according to claim 1, wherein the spigot is provided with a ring groove having a width matching the width of the second seal ring on the rear side of the projecting ring, and the second seal ring is fitted into the ring groove.

5. The connecting and sealing structure of a carat pipe as claimed in claim 2, wherein the heights of the plurality of seal rings on the outer peripheries of the first seal ring and the second seal ring become higher from front to back in sequence.

6. A carat pipe coupling seal structure according to claim 2, wherein a rear end face of a rearmost seal ring of an outer periphery of the first seal ring is aligned with a rear end face of the first seal ring, and a rear end face of a rearmost seal ring of an outer periphery of the second seal ring is aligned with a rear end face of the second seal ring.