CN211693903U

CN211693903U - Bell and spigot metal pipe fitting for water delivery pipeline

Info

Publication number: CN211693903U
Application number: CN202020298967.3U
Authority: CN
Inventors: 朴墁秋; 张乃强; 林建琳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-10-16
Anticipated expiration: 2030-03-12

Abstract

The utility model provides a faucet metal pipe fitting for conduit, including the body, the socket end, flange ring and fastening bolt post, the flange ring passes through welded fastening with the surface of socket end, at flange ring along circumferencial direction evenly distributed four at least locking holes, the number of fastening bolt post is the same with the number in locking hole, fastening bolt post is along circumferencial direction evenly fixed distribution in the terminal surface of socket end, in order to facilitate the connection between two pipe fittings, the locking hole can set up to the rectangular form arc hole that extends along the circumferencial direction. The utility model discloses simple structure, the installation between two pipes of being convenient for to owing to be provided with first seal ring and second seal ring respectively in different positions, make the sealed effect after connecting between two pipes better. In addition, because the locking hole can be set up to the long banding arc hole that extends along the circumferencial direction, consequently can need not adjust fastening bolt post and locking hole to coaxial just can install, further simplified the installation.

Description

Bell and spigot metal pipe fitting for water delivery pipeline

Technical Field

The utility model relates to a water conservancy construction technical field, concretely relates to make things convenient for fixed connection's socket joint metal pipe fitting for raceway.

Background

Hydraulic engineering can control rivers, prevents the flood calamity to water regulation and distribution, in order to satisfy people's needs of producing life. In the hydraulic engineering construction process, metal pipe fittings are used in a large number, wherein the pipe fittings with bell sockets occupy a large share, and how to conveniently connect the pipe fittings with the bell sockets and reduce water leakage to the maximum extent is a research focus in the hydraulic engineering field.

Disclosure of Invention

In order to make the metal pipe fitting that has socket joint be convenient for connect to the pipe fitting after connecting has good leak protection effect, the utility model provides a metal pipe fitting with socket joint.

The utility model discloses a concrete technical scheme as follows:

a bell and spigot metal pipe fitting for a water pipe comprises a pipe body, a socket end, a flange ring and fastening bolt columns, wherein the flange ring is sleeved on one side of the socket end and is fixed with the outer surface of the socket end through welding, at least four locking holes are uniformly distributed on the flange ring along the circumferential direction, the number of the fastening bolt columns is the same as that of the locking holes, the fastening bolt columns are uniformly and fixedly distributed on the end surface of the socket end along the circumferential direction, and when two metal pipe fittings are connected, the fastening bolt columns on one pipe fitting can penetrate through the locking holes on the other pipe fitting corresponding to the fastening bolt columns.

Furthermore, in order to enhance the sealing effect, a first sealing washer is arranged on the end face, which is perpendicular to the axial direction of the pipe body, in the female end, and the distance between the flange ring and the end face of the female end on the same side is greater than the distance between the end face of the female end and the first sealing washer.

Further, in order to better connect the two pipe fittings, the number of the locking holes is 6, and the number of the fastening bolt columns is 6.

Further, in order to facilitate connection between the two pipe fittings, the locking hole is an elongated arc-shaped hole extending along the circumferential direction.

Further, in order to achieve a better sealing effect, a second sealing gasket is arranged between the flange ring and the surface corresponding to the female end.

The utility model has the advantages that:

the utility model discloses simple structure, the installation between two pipes of being convenient for to owing to be provided with first seal ring and second seal ring respectively in different positions, make the sealed effect after connecting between two pipes better. In addition, because the locking hole can be set up to the long banding arc hole that extends along the circumferencial direction, consequently can need not adjust fastening bolt post and locking hole to coaxial just can install, further simplified the installation.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a cross-sectional view of a bell and spigot metal pipe fitting for a water pipe;

FIG. 3 is a left side view of the tube of FIG. 1;

FIG. 4 is a schematic view of another embodiment of a flange ring;

FIG. 5 is a schematic view of two pipe connections;

FIG. 6 is an embodiment of a second sealing gasket;

fig. 7 is another embodiment of a second sealing gasket.

In the figure, 1, a tube body; 2. a socket end; 3. a female end; 4. a flange ring; 401. a locking hole; 5. fastening a bolt column; 6. a first sealing gasket; 7. fastening a nut; 8 second sealing washer.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings.

In the description of the present application, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings.

The utility model discloses a concrete embodiment as follows:

as shown in fig. 1, fig. 2, fig. 3 and fig. 5, the bell and spigot metal pipe fitting for the water pipe comprises a pipe body 1, a socket end 2, a socket end 3, a flange ring 4 and a fastening bolt column 5, wherein the flange ring 4 is sleeved on one side of the socket end 2 and is fixed with the outer surface of the socket end 2 by welding. Because the flange ring 4 and the pipe body 1 are made of metal materials, the flange ring and the pipe body need to be subjected to rust prevention treatment at a welding position after being welded and fixed. In order to apply a uniform force during connection, a plurality of connection holes are uniformly arranged along the circumferential direction on the flange ring 4, and therefore, at least four locking holes 401 are uniformly distributed along the circumferential direction on the flange ring 4 during specific arrangement. When two pipe fittings are required to be connected, the socket end 2 of one pipe fitting is inserted into the socket end 3 of the other pipe fitting, the fastening bolt columns 5 uniformly and fixedly distributed on the end surface of the socket end 3 at the moment can be inserted into the locking holes 401 on the flange ring 4 through alignment, so that the number of the fastening bolt columns 5 is equal to that of the locking holes 401, and after the fastening bolt columns 5 are inserted into the locking holes 401 of the flange ring 4, the fastening bolt columns 5 are locked through the fastening nuts 7, so that the two pipe fittings can be connected. In the technical scheme of the utility model, preferably all set up the number of locking hole 401 and fastening bolt post 5 to 6.

Connect two pipe fittings through above-mentioned mode, if the leakproofness is expected to be good, just need to set up spigot end 2 and female end 3 to interference fit this moment, but interference fit is inconvenient to the installation of pipe fitting. The technical scheme of the utility model, in order to solve the leakproofness problem after the pipe connection, what adopt is to set up first seal ring 6 on the inside of female end 3 and body 1 axial looks vertically terminal surface, sets up distance d1 between the homonymy terminal surface of flange ring 4 and female end 2 simultaneously and is greater than the terminal surface of female end 3 to the distance d2 of first seal ring 6. Through this kind of setting, spigot end 2 inserts in female end 3, and fastening bolt post 5 inserts the locking hole 401 of flange ring 4 then locks fastening bolt post 5 through fastening nut 7, and spigot end 2 just can reach two pipe connections and carry out sealing treatment through the first seal ring of extrusion 6, prevents the mesh of the rivers play in the pipeline. In addition, a second sealing washer 8 shown in fig. 6 or fig. 7 may be disposed between the corresponding surface of the flange ring 4 and the female end 3, when the second sealing washer 8 is mounted, the fastening bolt 5 passes through the hole of the second sealing washer 8, and then the fastening bolt 5 is inserted into the locking hole 401 and locked by the fastening nut 7, so that the second sealing washer 8 is squeezed between the corresponding surface of the flange ring 4 and the female end 3, thereby achieving a better sealing effect.

It should be noted here that, locking hole 401 on the ring flange 4 sets up to the round hole, although can realize with the cooperation of fastening bolt post 5 in order to be connected two pipe fittings, but need adjust fastening bolt post 5 well when concrete construction just can insert locking hole 401, consequently in order to improve the efficiency of construction, reduce the work load of adjusting two pipe fittings in order to reach well locking hole and fastening bolt post, can set up locking hole 401 to the long banding arc hole that extends along the circumferencial direction that figure 4 shows, through this kind of setting in locking hole, need not adjust locking hole and fastening bolt post well and can reach the purpose of inserting the locking hole with the fastening bolt post.

Claims

1. The utility model provides a socket joint metal pipe fitting for conduit, includes body (1), spigot end (2), socket end (3), flange ring (4) and fastening bolt post (5), its characterized in that:

the flange ring (4) is sleeved on one side of the socket end (2) and is fixed with the outer surface of the socket end (2) through welding, and at least four locking holes (401) are uniformly distributed in the flange ring (4) along the circumferential direction;

the number of the fastening bolt columns (5) is the same as that of the locking holes (401), the fastening bolt columns (5) are uniformly and fixedly distributed on the end face of the female end (3) along the circumferential direction, and when two metal pipe fittings are connected, the fastening bolt column (5) on one pipe fitting can penetrate through the locking hole (401) on the other corresponding pipe fitting; a first sealing washer (6) is arranged on the end face, axially vertical to the pipe body (1), in the female end (3), and the distance between the flange ring (4) and the end face of the female end (2) on the same side is larger than the distance between the end face of the female end (3) and the first sealing washer (6); the locking holes (401) are long-strip-shaped arc-shaped holes extending along the circumferential direction.

2. The bell and spigot metal pipe fitting for the water conveying pipeline as claimed in claim 1, wherein: the number of the locking holes (401) is 6, and the number of the fastening bolt columns (5) is 6.

3. The bell and spigot metal pipe fitting for the water conveying pipeline as claimed in claim 1, wherein: and a second sealing washer (8) is arranged between the flange ring (4) and the surface corresponding to the female end (3).