CN212509995U

CN212509995U - Double-sealing clamping-pressing type pipe fitting elbow

Info

Publication number: CN212509995U
Application number: CN202020527940.7U
Authority: CN
Inventors: 王珂; 高星钰; 包国治; 孙正义; 朱云笛; 卞程程; 杨春晖; 吴丽
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2021-02-09
Anticipated expiration: 2030-04-13

Abstract

The utility model discloses a double-sealing clamping-pressing type pipe fitting elbow, which comprises a radial clamping-pressing joint, an axial clamping-pressing joint, a sealing component and a connecting bent pipe, wherein one end of the connecting bent pipe is connected with the radial clamping-pressing joint, and the other end of the connecting bent pipe is connected with the axial clamping-pressing joint; the sealing assembly is respectively installed on the radial clamping and pressing joint and the axial clamping and pressing joint and comprises convex rings and sealing rings, the convex rings are arranged on the radial clamping and pressing joint and the axial clamping and pressing joint at intervals, concave parts for containing the sealing rings are circumferentially arranged in each convex ring, and the interval between every two adjacent convex rings is 35-160 mm. The utility model discloses a set up seal assembly on radial card crimping head, axial card crimping head, and seal assembly's particular position's setting has improved the sealing performance and anti vibration, the anti-drawing ability of pipe connection spare in elbow department, reduces the risk of revealing that the junction leakproofness is not good leads to, has reduced and has safeguarded the change, improves pipeline safety, the cost is reduced.

Description

Double-sealing clamping-pressing type pipe fitting elbow

Technical Field

The utility model relates to a pipe fitting elbow field, concretely relates to dual seal card pressure formula pipe fitting elbow.

Background

The working principle of the clamping and pressing type pipe fitting is that a thin-wall metal pipe is inserted into a socket of the clamping and pressing type pipe fitting, the metal pipe is clamped and fixed in the pipe fitting by a special clamping and pressing tool, the section of a clamping and pressing position of the clamping and pressing part is hexagonal, and in addition, an O-shaped ring is arranged between the metal pipe and the pipe fitting for sealing, so that the clamping and pressing type pipe fitting has the characteristics of leakage prevention, pulling resistance, vibration resistance, high pressure resistance and the like. Therefore, the connecting piece is an advanced connecting piece in a direct drinking water system, a tap water system, a heating system, a steam system, an industrial oil pipe system and an industrial gas pipe system, and is suitable for connecting pipelines of water, oil, gas and the like.

In a piping system, a bend is a pipe that changes the direction of a pipe. The angle is divided into three types of most common angles of 45 degrees, 90 degrees and 180 degrees, and other abnormal angle elbows of 60 degrees and the like are also included according to engineering requirements. The elbow is made of cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, nonferrous metal, plastics, etc. The connection with the pipe can be directly welded (the most common way), flange connection, hot melt connection, electric melting connection, threaded connection, socket connection and the like. According to the production process, the method can be divided into welding elbows, stamping elbows, pushing elbows, casting elbows, butt welding elbows and the like. Other names are 90-degree elbow, quarter bend, love bend, etc.

The existing clamping and pressing type pipe fitting elbow is simple in structure, and the connecting pipeline is poor in sealing performance and anti-drawing capacity. The common improvement mode is to change the joint connection mode into threaded connection, so that the vibration resistance and the drawing resistance are improved, but the threaded connection has certain defects, such as long construction preparation time, high installation precision requirement, poor sealing property, easy corrosion of the threaded connection and limited application range, and is generally used for small-diameter domestic water pipelines. When the pipeline is used, fluid can flow along the pipeline and change, the elbow is often subjected to induced vibration, if the fluid resonates with the natural frequency of the pipeline structure, potential safety hazards are formed, and accidents such as leakage can occur if a certain limit is exceeded.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double sealing card pressure formula pipe fitting elbow to the conventional threaded connection installation accuracy that proposes requires height in solving above-mentioned background art, the leakproofness is poor, and threaded connection corrosion easily, and the range of application is limited, and then has the problem of potential safety hazard.

In order to achieve the above object, the utility model provides a following technical scheme: a double-sealing clamping-pressing type pipe fitting elbow comprises a radial clamping-pressing joint, an axial clamping-pressing joint, a sealing assembly and a connecting bent pipe, wherein one end of the connecting bent pipe is connected with the radial clamping-pressing joint, and the other end of the connecting bent pipe is connected with the axial clamping-pressing joint;

the sealing assembly is respectively installed on the radial clamping and pressing joint and the axial clamping and pressing joint and comprises convex rings and sealing rings, the convex rings are arranged on the radial clamping and pressing joint and the axial clamping and pressing joint at intervals, concave parts for containing the sealing rings are circumferentially arranged in each convex ring, and the interval between every two adjacent convex rings is 35-160 mm.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up seal assembly on radial card crimping head, axial card crimping head, and seal assembly's particular position's setting has improved the sealing performance and anti vibration, the anti-drawing ability of pipe connection spare in elbow department, reduces the risk of revealing that the junction leakproofness is not good leads to, has reduced and has safeguarded the change, improves pipeline safety, the cost is reduced.

Drawings

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

FIG. 2 is a cross-sectional view of the present invention;

fig. 3 is a left side view of the present invention.

In the figure: 1. the radial clamping and pressing joint; 2. axially clamping and pressing the joint; 3. a convex ring; 4. a seal ring; 5. and connecting the bent pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a dual seal card pressure formula pipe fitting elbow which characterized in that: the sealing device comprises a radial clamping and pressing joint 1, an axial clamping and pressing joint 2, a sealing assembly and a connecting bent pipe 5, wherein one end of the connecting bent pipe 5 is connected with the radial clamping and pressing joint 1, and the other end of the connecting bent pipe 5 is connected with the axial clamping and pressing joint 2;

the sealing assembly is respectively installed on the radial clamping pressure joint 1 and the axial clamping pressure joint 2 and comprises a convex ring 3 and a sealing ring 4, the convex rings 3 are arranged on the radial clamping pressure joint 1 and the axial clamping pressure joint 2 at intervals, each convex ring is internally provided with a concave part for accommodating the sealing ring 4 in the circumferential direction, and the interval between the adjacent convex rings 3 is 35-160 mm. The selection of the spacing of the convex ring 3 in the application effectively avoids the influence on the sealing performance of the joint caused by too short spacing after the clamping operation, or avoids the unnecessary material waste and the cost increase caused by too long spacing.

The utility model provides a compartment of two adjacent bulge loops 3 is apart from the setting of going on to further improved sealed effect, just O type sealing washer is chooseed for use to sealing washer 4 in this application.

When the clamping operation is carried out, the sealing rings 4 in the two convex rings 3 simultaneously play a role in sealing, so that a good sealing effect is achieved, and the sealing performance of the whole elbow is improved.

The utility model discloses a press joint 1 and axial card to press joint 2 card to press position both ends to set up twice seal structure at radial card, improved the sealing performance and anti vibration, the anti-tensile ability of pulling out of pipe connection spare in elbow department, reduced the not good scheduling problem that leads to revealing of junction leakproofness, reduced and maintained the change, improve pipeline safety, the cost is reduced.

The embodiment just right the utility model relates to a preferred structure of double seal card pressure formula pipe fitting elbow describes, selects 90 quarter bend not to inject utility model's conception and scope, and the elbow angle is selected 45 °, 60 °, 135 ° etc. and is all not broken away from the utility model discloses the scheme. In addition, the technical scheme of the utility model makes various exterior modifications and improvements that should fall into by those skilled in the art the protection scope of the double-sealing clamping-pressing type pipe fitting elbow of the utility model.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a dual seal card pressure formula pipe fitting elbow which characterized in that: the sealing device comprises a radial clamping and pressing joint (1), an axial clamping and pressing joint (2), a sealing assembly and a connecting bent pipe (5), wherein one end of the connecting bent pipe (5) is connected with the radial clamping and pressing joint (1), and the other end of the connecting bent pipe (5) is connected with the axial clamping and pressing joint (2);

seal assembly installs respectively and presses joint (1) and axial card to press and connect (2) on, seal assembly includes bulge loop (3) and sealing washer (4), bulge loop (3) interval sets up on radial card presses joint (1) and axial card to press joint (2), bulge loop (3) are provided with twice, every the inside equal circumference of bulge loop is provided with the recess that holds sealing washer (4), and is adjacent bulge loop (3) separate the interval and be 35-160 mm.