CN205877535U - Quick detach formula is to drawing anticorrosive joint - Google Patents

Abstract

This invention proposes a quick-release pull-through corrosion-resistant joint, comprising a first joint and a second joint connected to each other. The first joint has a first connecting portion, and the second joint has a second connecting portion. The outer walls of both the first and second connecting portions are threaded. A connecting clamp is also included, fitted onto the outer walls of the first and second connecting portions, and the clamp has internal threads. Corrosion-resistant coatings are applied to the inner walls of the first and second joints and the mating end faces of the first and second connecting portions. The threads on the first and second connecting portions are rotated in opposite directions (left and right). Similarly, the internal threads on the clamp are also rotated in opposite directions (left and right). Compared to existing corrosion-resistant joints, this invention features a compact structure, light weight, small space occupation, convenient and quick installation and disassembly, uniform locking force that prevents loosening, good sealing performance, and a circumferential locking effect between the first and second joints, resulting in strong connection rigidity.

Description

A quick-detachable pair-pull anti-corrosion joint

technical field

The utility model relates to an anti-corrosion joint, in particular to a quick-detachable pair-pull anti-corrosion joint.

Background technique

When laying traditional anti-corrosion pipelines, the pipelines are often fixed and linked by flanges and bolts, and at the same time relying on the locking force of the bolts to squeeze the PTFE anti-corrosion coating between the flanges to achieve the purpose of sealing. When the pipeline is connected, the different locking strength of the bolts will directly affect the sealing effect of the PTFE anti-corrosion coating between the connecting surfaces. If the locking strength of the bolts is too different, it will also cause the PTFE The phenomenon of vinyl seal failure occurs, the connection process is complicated and cumbersome, and it is difficult to disassemble with tools such as wrenches in narrow spaces. At the same time, this structure will increase the size of the pipe in the radial direction, and the diameter of the flange is often Far larger than the diameter of the pipe itself, it will take up more laying space in the spatial layout, so the flange connection structure is subject to certain restrictions in use.

Utility model content

Based on the above problems, the purpose of this utility model is to provide a quick-release anti-corrosion anti-corrosion joint with a compact structure, small radial size, convenient and quick installation and disassembly, and uniform locking force that is not easy to loosen.

In view of the above problems, the following technical solutions are provided: a quick-release anti-corrosion anti-corrosion joint, including a first joint and a second joint that communicate with each other and are coaxially butted. One end of the first joint is provided with a first connecting part. One end of the second joint is provided with a second connecting portion identical to the first connecting portion, and threads are provided on the outer peripheral walls of the first connecting portion and the second connecting portion; a connecting hoop is also included, and the connecting hoop is composed of several The hoop pieces are composed of arc-shaped hoop pieces, and the hoop pieces are connected by connecting pins so that the hoop pieces form a closed ring shape. The connecting hoops are sleeved on the outer walls of the first connecting part and the second connecting part. There are internal threads that are mated with the threads on the first connecting part and the second connecting part; the inner walls of the first joint and the second joint are provided with anti-corrosion coatings, and the butt joints of the first connecting part and the second connecting part Anti-corrosion coatings are provided on the end faces.

The utility model is further provided that, the screw threads on the first connecting part and the second connecting part have one left and one right.

The utility model is further provided that there are two internal threads on the hoop piece, and their directions of rotation correspond to the first connecting part and the second connecting part respectively, left and right.

The utility model is further configured that the anti-corrosion coating is made of polytetrafluoroethylene, and the thickness of the anti-corrosion coating is 2 to 5 mm.

The beneficial effect of the utility model is that compared with the existing anti-corrosion joints, the structure is compact, the weight is light, the space occupied is small, the installation and disassembly are convenient and quick, the locking force is even and not easy to loose, and the sealing performance is good. The connecting hoop is between the first joint and the second joint. A circumferential lock is formed on the joint, and the connection is rigid.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is a schematic diagram of the explosion structure of the utility model;

Fig. 3 is a schematic diagram of the dissected structure of the utility model.

Meanings of symbols in the figure: 10-first joint; 11-first connecting part; 20-second joint; 21-second connecting part; 30-thread; 40-connecting hoop; 41-hoop piece; 42-connecting pin; 43-internal thread; 50-anti-corrosion coating.

detailed description

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

Referring to Figures 1 to 3, a quick-disconnect anti-corrosion paired anti-corrosion joint includes a first joint 10 and a second joint 20 that communicate with each other and are coaxially butted, and one end of the first joint 10 is provided with a first connecting portion 11. One end of the second joint 20 is provided with the same second connecting portion 21 as the first connecting portion 11, and the outer peripheral walls of the first connecting portion 11 and the second connecting portion 21 are provided with threads 30; The connecting hoop 40, the connecting hoop 40 is composed of three arc-shaped hoop pieces 41, the hoop pieces 41 are connected by connecting pins 42 so that the hoop pieces 41 form a closed ring, the connecting hoop 40 is sleeved on the first On the outer wall of a connecting portion 11 and the second connecting portion 21, the hoop piece 41 is provided with an internal thread 43 that is mated with the threads on the first connecting portion 11 and the second connecting portion 21; the first joint 10 An anti-corrosion coating 50 is provided on the inner wall of the second joint 20 , and the end faces of the first connecting part 11 and the second connecting part 21 are provided with an anti-corrosion coating 50 .

In this embodiment, the threads 30 on the first connecting part 11 and the second connecting part 21 are arranged in two opposite directions, one left and one right; the internal threads 43 on the hoop piece 41 are two The direction of rotation is also one left and one right, and the internal threads 43 are arranged corresponding to the first connecting portion 11 and the second connecting portion 21 .

In the above structure, the first connecting portion 11 and the second connecting portion 21 are provided with threads 30 in opposite directions. When the connecting hoop 40 rotates, the distance between the first connecting portion 11 and the second connecting portion 21 is changed so that they are mutually tightened. Or loosen, so as to realize the butt sealing and quick disassembly of the first joint 10 and the second joint 20 .

In this embodiment, the anti-corrosion coating 50 is made of polytetrafluoroethylene, and the thickness of the anti-corrosion coating 50 is 2 to 5 mm.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and modifications can also be made. These improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims (4)

1. A quick-detachable pair-pull anti-corrosion joint, comprising a first joint and a second joint connected to each other and coaxially butted, characterized in that: one end of the first joint is provided with a first connecting portion, and the second joint One end is provided with a second connecting portion identical to the first connecting portion, and threads are provided on the outer peripheral walls of the first connecting portion and the second connecting portion; a connecting hoop is also included, and the connecting hoop is composed of several arc-shaped hoops The hoop pieces are connected by connecting pins so that the hoop pieces form a closed ring. The connecting hoop is sleeved on the outer wall of the first connecting part and the second connecting part. The hoop piece is provided with the first The internal thread of the thread on the connecting part and the second connecting part is matched with the internal thread; the inner wall of the first joint and the second joint is provided with an anti-corrosion coating, and the end faces of the first connecting part and the second connecting part are provided with With anti-corrosion coating. 2 . The quick-detachable double-pull anti-corrosion joint according to claim 1 , wherein the screw threads on the first connecting portion and the second connecting portion have one left and one right. 3 . 3. A quick-detachable anti-corrosion anti-corrosion joint according to claim 1, characterized in that: there are two internal threads on the hoop piece, and their rotation directions correspond to the first connecting part and the second connecting part respectively. Left and right match the settings. 4. A quick-release anti-corrosion anti-corrosion joint according to any one of claims 1 to 3, wherein the anti-corrosion coating is made of polytetrafluoroethylene, and the thickness of the anti-corrosion coating is 2 to 5 mm.