CN206130357U - Socket joint formula pipeline sealed rubber ring for interface - Google Patents

Abstract

The utility model discloses a socket joint formula pipeline mechanical sealed rubber ring for the flexible interface, including bulb, supporter, the hardness of bulb is less than the hardness of supporter, recess on the interior anchor ring of supporter certainly the supporter end is to being close to the one end of bulb is deepened gradually. The utility model discloses socket joint formula pipeline sealed rubber ring for interface, simple to operate, sealed effectual.

Description

Sealing rubber ring for socket pipe joint

technical field

The utility model relates to a sealing ring, in particular to a sealing rubber ring for a mechanically flexible interface of a socket type pipeline.

Background technique

Ductile iron pipes are commonly used in water supply and drainage projects. The joints are mainly divided into slide-in flexible joints and mechanical flexible joints according to the connection mode. Among them, the K-type joint is the most common mechanical flexible joint. The size, shape and parameters of the K-type joint are publicly included in GB/T 13295-2008 standard. The hardness of the sealing rubber ring of the K-type interface is low, and the sealing rubber ring is usually soft, and the hardness of the support body of the sealing rubber ring is consistent with that of the ball head. When the fitting clearance of the socket of the K-type ball tube is small, because the supporting part is soft, it is compressed and piled up during the installation process, which cannot ensure that the ball head part is pushed and squeezed in place, resulting in insufficient compression of the ball head part. , when the water pressure in the pipe is high, it may cause the interface to leak and seal failure.

Utility model content

The purpose of the utility model is to provide a sealing rubber ring for a socket-type pipe joint, which is easy to install and has good sealing effect.

In order to achieve the above object, the technical solution of the utility model is: a sealing rubber ring for a mechanically flexible interface of a socket-type pipeline, including a ball head and a support body, and the hardness of the ball head is lower than that of the support body , between the socket and the socket that are plugged together, there is a support body warehouse and a ball head chamber. The T-head bolts pass through the socket and the pressure flange and can make the pressure flange move towards the socket. The depressing tongue bears against the support body and the end surface of the depressing tongue is in contact with the pressure receiving surface of the support body, the ball head is located in the ball head chamber, and the support body is located in the support body chamber.

The utility model relates to a sealing rubber ring for a mechanically flexible interface of a socket-type pipeline, wherein the Shore hardness of the ball head is 50°-70°.

The utility model relates to a sealing rubber ring for a mechanically flexible interface of a socket-type pipeline, wherein the Shore hardness of the support body is 75°-95°.

The sealing rubber ring for the mechanical flexible interface of the socket-type pipeline of the utility model, wherein, the groove on the inner ring surface of the support body gradually deepens from the end of the support body to the end close to the ball head.

After adopting the above scheme, compared with the prior art, since the hardness of the ball head of the seal rubber ring used for the socket-type pipe joint of the utility model is lower than that of the support body, when the seal rubber ring is installed, the support body is not easy to be compressed due to its high hardness. It can ensure that the ball head is installed in place, avoiding leakage when the water pressure is high due to the ball head not being in place, and the outline of the support body is clear during the installation process, which is easy to identify the position of the sealing rubber ring, and the installation is more convenient; the hardness of the ball head is relatively low, Ensure that the ball head can fully fill the ball head chamber, so that the sealing effect is better.

Description of drawings

Fig. 1 is the structural representation of the sealing rubber ring for the socket-type pipeline interface of the present utility model;

Fig. 2 is a half-sectional view before the socket is installed with the sealing rubber ring for the socket-type pipe interface of the utility model;

Fig. 3 is a half-sectional view of the socket after installing the sealing rubber ring for the socket-type pipe joint of the utility model.

detailed description

As shown in Figure 1, the sealing rubber ring for the mechanical flexible interface of the socket type pipeline of the present invention includes a ball head 11 and a support body 12, the hardness of the ball head 11 is lower than that of the support body 12, and the Shore of the ball head 11 The hardness is 50°-70°, the Shore hardness of the support body 12 is 75°-95°, and the groove on the inner ring surface 121 of the support body 12 gradually deepens from the end of the support body 12 to the end close to the ball head 11 .

As shown in Figure 2 and Figure 3, when installing, insert the socket 21 into the socket 22, the T-head bolt 23 passes through the socket 22 and the pressure flange 24, and tighten the hexagon head nut 25 on the T-head bolt 23, Make the pressure flange 24 move towards the socket 22, the pressure tongue on the pressure flange 24 withstands the support body 12, and the end surface of the pressure tongue contacts the pressure receiving surface of the support body 12, so that the T-head bolt 23 and the hexagon head nut 25 The torque is converted into installation force, and the support body 12 is gradually pushed into the support body compartment 31. Since the Shore hardness of the support body 12 is 75°-95°, it is not easy to be compressed and deformed during the jacking process, and the support body 12 can be easily To accurately determine the installation position, when the support body 12 completely enters the support body compartment 31, it can be ensured that the ball head 11 enters the ball head compartment 32. Since the groove on the annular surface 121 in the supporting body gradually deepens from the end of the supporting body 12 to the end close to the ball head 11, when installing the rubber ring, it is easier to push the rubber ring to the socket end, so the installation process is simpler. At the same time, The hardness of the ball head 11 is smaller than that of the support body 12 , the installation resistance is reduced, and the ball head can more fully fill the ball head chamber 32 .

The above-mentioned embodiment is only to describe the preferred implementation mode of the utility model, and is not to limit the scope of the utility model. Various modifications and improvements made should fall within the scope of protection determined by the claims of the present utility model.

Claims (4)

1. A sealing rubber ring for a mechanically flexible interface of a socket-type pipeline, comprising a ball head (11), a support body (12), characterized in that: the hardness of the ball head (11) is lower than that of the support body ( 12) hardness, between the socket (21) and the socket (22) which are plugged together, there is a support body chamber (31) and a ball head chamber (32), and the T-head bolt (23) passes through the socket (22) and the pressure flange (24) can make the pressure flange (24) move towards the socket (22), the pressure tongue on the pressure flange (24) withstands the support body (12) and the end surface of the pressure tongue is in contact with the The pressure-receiving surface of the support body (12) is in contact, the ball head (11) is located in the ball head compartment (32), and the support body (12) is located in the support body compartment (31). 2. The sealing rubber ring for the mechanically flexible interface of socket-type pipelines according to claim 1, characterized in that: the Shore hardness of the ball head (11) is 50°-70°. 3. The sealing rubber ring for the mechanically flexible interface of socket-type pipelines according to claim 2, characterized in that: the Shore hardness of the support body (12) is 75°-95°. 4. The sealing rubber ring for the mechanically flexible interface of the socket-type pipeline according to claim 3, characterized in that: the groove on the inner ring surface (121) of the support body (12) is formed from the support body ( 12) The end gradually deepens towards the end close to the ball head (11).