CN219623504U

CN219623504U - Stainless steel elbow joint

Info

Publication number: CN219623504U
Application number: CN202320453887.4U
Authority: CN
Inventors: 龚岳强
Original assignee: Zhejiang Kangpasi Fluid Technique Co ltd
Current assignee: Zhejiang Kangpasi Fluid Technique Co ltd
Priority date: 2023-03-03
Filing date: 2023-03-03
Publication date: 2023-09-01
Anticipated expiration: 2033-03-03

Abstract

The utility model relates to a stainless steel elbow joint, which comprises a shell and a sealing piece; the shell comprises a lower shell and an upper shell, and the pipe walls at two sides of the lower shell and the upper shell are outwards bent to form an extension plate; the sealing piece comprises a sealing ring and a connecting bridge; sealing rings are connected to two ends of the connecting bridge; the sealing ring is arranged in a pipe orifice formed by closing the upper shell and the lower shell; the connecting bridge is installed between the extension plates of the lower and upper housings. Compared with the prior art, the utility model has low cost and higher installation efficiency.

Description

Stainless steel elbow joint

Technical Field

The utility model relates to the technical field of fluid pipeline connection, in particular to a stainless steel elbow joint.

Background

The elbow joint is a pipe fitting for changing the direction of a pipeline in a pipeline system, and the connecting mode of the elbow joint and a connecting pipe is as follows: welding, flange connection, hot melt connection, electric melt connection and the like, and the connection modes are inconvenient in the process of installing the elbow joint and difficult in the process of disassembling and replacing the elbow joint.

In the prior art, the elbow joint and the pipeline are connected in a socket joint type connection mode, however, the socket joint type connection is high in cost and long in installation time, and the elbow joint and the connecting pipe can be separated along with the use time, so that the problem of medium leakage occurs. For example, chinese patent No. 202121180907.2 (issued to the public No. CN 215371507U) discloses an elbow joint, which comprises a curved pipe body, two ends of the pipe body are respectively provided with a pipe joint, the pipe joint comprises two shells, the inner sides of the shells are provided with concave cavities with open ends, the concave cavities of the two shells form a containing cavity, a sealing ring is arranged in the containing cavity, the pipe body enters the containing cavity from one end of the pipe joint to be in sealing connection with the sealing ring, and an external pipe enters the containing cavity from the other end of the pipe joint to be in sealing connection with the sealing ring. In the utility model, the elbow joint needs to adopt one elbow and two pipeline joints, so that the manufacturing cost is high and the installation is complex.

Aiming at the problems of high cost and complex installation, the prior art also improves the elbow joint, combines the elbow with two pipeline joints, reduces materials, but still has waste of materials. For example, chinese patent application No. 201921373823.3 (issued to the public No. CN 211315444U) discloses a quick connector, which comprises a housing and a sealing ring, wherein the housing comprises more than two connectors, the sealing ring comprises a sealing cylinder and sealing outlets, each sealing outlet is located in the connector, the housing further comprises an upper half shell and a lower half shell, each of the upper half shell and the lower half shell is provided with a semicircular groove, the upper half shell is provided with a plurality of connectors and first semicircular notches, the lower half shell is provided with a second semicircular notch, the corresponding first semicircular notch and second semicircular notch are matched to form a complete connector, a positioning concave ring for installing the flange outside the connecting pipe is arranged in each connector, the upper half shell and the lower half shell are provided with outwards extending convex edges corresponding to the sides of the semicircular grooves, and the extending convex edges of the upper half shell and the lower half shell are fastened and fixed by more than two bolts after being mutually attached. The quick connector is relatively simple to install and relatively low in production cost, but has the following problems: 1. the sealing ring of the utility model is completely covered on the quick connector, and the waste of materials still exists; 2. during installation, the contact area between the sealing ring and the external pipeline is larger, so that the resistance is large during installation, and the installation efficiency is lower.

Disclosure of Invention

The first technical problem to be solved by the utility model is to provide a stainless steel elbow joint with low manufacturing cost and high installation efficiency aiming at the prior art.

The technical scheme adopted for solving the technical problems is as follows: a stainless steel elbow joint comprises a shell and a sealing piece; the shell comprises a lower shell and an upper shell, and the pipe walls at two sides of the lower shell and the upper shell are outwards bent to form an extension plate; the method is characterized in that:

the sealing piece comprises a sealing ring and a connecting bridge; sealing rings are connected to two ends of the connecting bridge; the sealing ring is arranged in a pipe orifice formed by closing the upper shell and the lower shell; the connecting bridge is installed between the extension plates of the lower and upper housings.

In order to mount the connecting bridge to achieve a better sealing effect, preferably, the extending plate of the lower shell or/and the upper shell is provided with a limiting groove, and the connecting bridge is embedded in the limiting groove, so that the upper shell and the lower shell form sealing connection.

In order to improve the sealing effect, preferably, both ends of the lower shell are provided with first annular grooves for accommodating sealing rings; correspondingly, a first annular groove is also arranged at the port of the upper shell; the sealing ring is embedded in the first annular groove, and the upper shell, the lower shell and the peripheral pipeline are in sealing connection.

In order to improve the fixing effect, preferably, a second annular groove for fixing the peripheral pipeline is arranged between the first annular groove of the lower shell and the port, and the port of the upper shell is correspondingly provided with the second annular groove; and the limiting part of the peripheral pipeline is arranged in the second annular groove.

In order to lock the upper shell and the lower shell and improve the fixing effect, preferably, the extending plate of the lower shell is provided with a through hole, and correspondingly, the extending plate of the upper shell is provided with a mounting hole; the bolts pass through the mounting holes and the through holes to enable the lower shell and the upper shell to be mutually attached and locked.

Compared with the prior art, the utility model has the advantages that: only two shells and one sealing piece are needed, so that the used materials are reduced, the cost is reduced, and the installation efficiency is improved; the sealing element consists of a sealing ring and a connecting bridge, and when the sealing element is installed, the contact area between the sealing element and an external pipeline is small, the installation resistance is small, and the installation is convenient;

the upper shell and the lower shell are fixed by a plurality of bolts, so that the risk of explosion and separation of the joint is reduced.

Drawings

FIG. 1 is an exploded view of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an embodiment of the present utility model;

FIG. 3 is a schematic view of a seal ring according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of the structure of the connecting pipe according to the embodiment of the present utility model;

FIG. 5 is a schematic view of the structure of the upper housing according to the embodiment of the present utility model;

fig. 6 is a schematic structural diagram of the lower housing according to an embodiment of the utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1-6, is a preferred embodiment of the present utility model. The stainless steel elbow joint of the embodiment comprises a shell 1 and a sealing piece 2.

The shell 1 comprises a lower shell 3 and an upper shell 4, wherein the tube walls at two sides of the lower shell 3 and the upper shell 4 are outwards bent to form an extension plate 5, and a limiting groove 51 is formed in the extension plate 5.

A first annular groove 6 for accommodating a sealing ring 21 is arranged at two ports of the lower shell 3; correspondingly, a first annular groove 6 is also arranged at the port of the upper shell 4; the sealing ring 21 is embedded in the first annular groove 6, and the upper shell 4, the lower shell 3 and the peripheral pipeline 9 are in sealing connection; a second annular groove 7 for fixing a peripheral pipeline 9 is arranged between the first annular groove 6 and the port of the lower shell 3, and the port of the upper shell 4 is correspondingly provided with the second annular groove 7; the limit part 91 of the peripheral pipe 9 is mounted in the second circumferential groove 7.

The extending plate 5 of the lower shell 3 is provided with a through hole 31, and correspondingly, the extending plate 5 of the upper shell 4 is provided with a mounting hole 41; the bolts pass through the mounting holes 41 and the through holes 31 to attach and lock the lower case 3 and the upper case 4 to each other.

The seal 2 comprises a sealing ring 21 and a connecting bridge 22; two ends of the connecting bridge 22 are respectively connected with a sealing ring 21; the connecting bridge 22 is embedded in the limit groove 51, so that a sealing connection is formed between the upper shell 4 and the lower shell 3; the sealing ring 21 is embedded in the first annular groove 6, and forms sealing connection between the upper shell 4, the lower shell 3 and the peripheral pipeline 9.

When the stainless steel pipe joint is used for connection on site, firstly, the sealing element 2 is sleeved on 2 peripheral pipelines 9, then, the lower shell 3 and the upper shell 4 are correspondingly arranged on the peripheral pipelines 9 and the sealing element 2, the limiting part 91 of the peripheral pipeline 9 is arranged in the second annular groove 7, the sealing element 21 is embedded in the first annular groove 6, and the sealing ring 22 is embedded in the limiting groove 51; the bolt 8 is then passed through the through hole 31 of the lower housing 3, and finally, the bolt 8 is continued to pass through the mounting hole 41 of the upper housing 4 and the extension plate 5 of the lower housing 3 and the upper housing 4 are fitted to each other and then locked, as shown in fig. 4, so that the fitting of the pipe joint is completed.

Claims

1. A stainless steel elbow joint comprises a shell (1) and a sealing piece (2);

the shell (1) comprises a lower shell (3) and an upper shell (4), and the pipe walls at two sides of the lower shell (3) and the upper shell (4) are outwards bent to form an extension plate (5);

the method is characterized in that: the sealing element (2) comprises a sealing ring (21) and a connecting bridge (22); sealing rings (21) are connected to two ends of the connecting bridge (22); the sealing ring (21) is arranged in a pipe orifice formed by closing the upper shell (4) and the lower shell (3); the connecting bridge (22) is arranged between the lower shell (3) and the extension plate (5) of the upper shell (4).

2. A stainless steel elbow according to claim 1, wherein: the lower shell (3) or/and the extension plate (5) of the upper shell (4) are provided with limit grooves (51), and the connecting bridge (22) is embedded in the limit grooves (51), so that the upper shell (4) and the lower shell (3) are in sealing connection.

3. A stainless steel elbow according to claim 1, wherein: the two ends of the lower shell (3) are provided with first annular grooves (6) for accommodating sealing rings (21); correspondingly, a first annular groove (6) is also arranged at the port of the upper shell (4); the sealing ring (21) is embedded in the first annular groove (6) and enables the upper shell (4), the lower shell (3) and the peripheral pipeline (9) to be in sealing connection.

4. A stainless steel elbow according to claim 1, wherein: a second annular groove (7) for fixing a peripheral pipeline (9) is arranged between the first annular groove (6) of the lower shell (3) and the port of the lower shell (3), and the corresponding port of the upper shell (4) is also provided with the second annular groove (7); the limiting part (91) of the peripheral pipeline (9) is arranged in the second annular groove (7).

5. A stainless steel elbow according to claim 1, wherein: a through hole (31) is formed in the extension plate (5) of the lower shell (3), and a mounting hole (41) is formed in the extension plate of the upper shell (4) correspondingly; the bolts (8) pass through the mounting holes (41) and the through holes (31) to enable the lower shell (3) and the upper shell (4) to be mutually attached and locked.