CN215635529U

CN215635529U - High-pressure-resistant pipe joint capable of being connected quickly

Info

Publication number: CN215635529U
Application number: CN202121801012.6U
Authority: CN
Inventors: 蔡潘祥; 翟建刚
Original assignee: Zhejiang Card Times Force Fluid Technology Co ltd
Current assignee: Zhejiang Card Times Force Fluid Technology Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2022-01-25
Anticipated expiration: 2031-08-03

Abstract

The utility model discloses a high-pressure-resistant pipe joint capable of being quickly connected, which comprises a shell body buckled left and right, wherein the left shell body and the right shell body respectively comprise a shell body panel and a shell body arranged on the shell body panel; the joint end of the pipeline is arranged in the joint cavity through the opening and is in sealing contact with the sealing sleeve; the fixed sleeve is buckled up and down and arranged in the joint cavity, the upper fixed sleeve and the lower fixed sleeve are respectively sleeved on the joint end of the pipeline, the inner diameter size of the fixed sleeve is matched with the outer diameter size of the sealing sleeve, and the upper fixed sleeve and the lower fixed sleeve enclose a fixed cavity and wrap the outer circumferential surface of the sealing sleeve. According to the utility model, the left shell and the right shell which are buckled are used for improving the compressive strength of the joint and avoiding the joint from bursting under high pressure; the upper and lower fixing sleeves sleeved on the sealing sleeve avoid the deformation of the sealing sleeve, and the sealing performance of the joint is greatly improved.

Description

High-pressure-resistant pipe joint capable of being connected quickly

Technical Field

The utility model relates to the technical field of pipeline joints, in particular to a high-pressure-resistant pipe joint capable of being quickly connected.

Background

At present, when the existing high-pressure pipeline is laid, the connection between the composite steel pipe and the composite steel pipe adopts butt welding connection and flange connection, however, the two connections have the defects that the flange plates are connected by a plurality of connecting bolts, the pretightening force is not uniform, the sealing elements are deformed, leakage, overflow and water leakage are easy to occur, the junction of compound steel pipe and compound steel pipe is because of receiving the temperature during butt joint welding, the influence of geological conditions, welded connection can not reach the requirement of quality, the anticorrosive coating is destroyed easily, the operator receives the space when pipe laying welding operation, geographical position's restriction, hardly align the tubular product port, the degree of difficulty of bringing the operation for the welding, welding quality can not obtain the assurance, the port need be polished after the welding, the phenomenon of the crater of compound steel pipe junction still easily produces the fracture takes place, the anticorrosive coating can not obtain the guarantee, it is very laborious, waste time, hard promptly, the life of tubular product has been shortened again.

For this reason, chinese utility model patent CN106195483A provides a be used for corrosion-resistant quick splint of high temperature high pressure to force formula steel pipe joint, this joint is by two trapezoidal dish composite steel pipes, the sealing washer, go up the retaining member, constitute down retaining member etc. be equipped with the spill seal ring groove on trapezoidal dish composite steel pipe a preceding terminal surface, be equipped with retaining member and lower retaining member on trapezoidal dish composite steel pipe a and trapezoidal dish composite steel pipe B excircle, after putting the sealing washer into the spill seal ring inslot, again with the accurate alignment of trapezoidal dish composite steel pipe, through last, lower fastener and bolt locking are fixed, thereby carry out the installation that connects, realize the steel pipe high-speed joint.

However, the above solution has the following disadvantages:

(1) the front end face of the trapezoidal disc composite steel pipe A is provided with a concave sealing ring, the front end face of the trapezoidal disc composite steel pipe B is a plane, sealing is carried out through the sealing ring arranged in a concave sealing ring groove, and when the pressure of fluid in the steel pipe A, B is overlarge, the sealing ring is easy to deform, so that the fluid in the pipe leaks;

(2) the upper and lower locking pieces have small structural strength and poor compressive strength, and are easy to burst when working under high pressure for a long time.

In view of the above, there is a need for an improved high pressure resistant pipe joint structure to improve the pressure strength and sealing performance thereof and prevent leakage or burst at the pipe joint.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems of poor sealing performance and weak high-pressure resistance of the existing high-pressure resistant pipe joint structure.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

a quick connect, high pressure resistant pipe joint comprising:

the left shell and the right shell respectively comprise a shell panel and a shell body arranged on the shell panel, and the shell body is fixed through the shell panel to form a joint cavity with openings at two ends;

the joint end of the pipeline is arranged in the joint cavity through the opening and is in sealing contact with the sealing sleeve;

the fixed cover that the lock set up from top to bottom sets up at the joint intracavity, goes up fixed cover and overlaps respectively with fixed cover down and establish on the joint end of pipeline, go up fixed cover with the internal diameter size of fixed cover down with the external diameter size looks adaptation of seal cover, go up fixed cover with fixed cover encloses into fixed chamber down, wraps up on the outer periphery of seal cover.

In the above scheme, preferably, the left shell and the right shell are fixed by bolts, the four corners of the shell panel of the left shell are provided with turning-out threaded holes, and the four corners of the shell panel of the right shell are provided with through holes.

In the above scheme, preferably, the seal sleeve includes a sleeve, an annular seal reinforcing rib is provided on an inner side surface of the sleeve, the seal reinforcing rib is inwardly protruded, and the pipe abuts against the top surface and the bottom surface of the seal reinforcing rib.

In the above scheme, preferably, annular suction tables are respectively arranged on the upper end and the lower end of the sleeve, and the suction tables are respectively connected with the upper end and the lower end of the sleeve and are arranged in an inward inclined manner along the axial direction of the sleeve.

In the above aspect, preferably, the angle of the suction table is 45 degrees.

In the above scheme, preferably, the upper fixing sleeve and the lower fixing sleeve are bowl-shaped metal sleeves, a pipeline interface is arranged on the bottom surface of the metal sleeve, and the upper fixing sleeve and the lower fixing sleeve are sleeved on the pipeline through the pipeline interface.

In the above scheme, preferably, the end faces of the shell panels, which are fastened with each other, are provided with reinforcing ribs.

In the above scheme, preferably, the end faces of the housing body, which are buckled with each other, are provided with:

the joint grooves are arranged at the upper end and the lower end of the left shell and the right shell, and the upper end and the lower end of each joint groove are provided with the openings;

the sealing sleeve, the upper fixing sleeve and the lower fixing sleeve are arranged in the placing groove; the placing groove is internally provided with a limiting part, and the upper fixing sleeve, the lower fixing sleeve and the upper end and the lower end of the sealing sleeve are provided with limiting slopes and are clamped with the limiting part.

Compared with the prior art, the quick-connection high-pressure-resistant pipe joint provided by the utility model has the advantages that the joint cavity is enclosed by the left shell and the right shell which are buckled, the sealing sleeve and the pipe joint are arranged in the joint cavity, the bearing capacity of the joint is greatly improved, and the joint is prevented from bursting due to overhigh pressure; the sealing sleeve is provided with an upper fixing sleeve and a lower fixing sleeve which are buckled with each other, and the upper fixing sleeve and the lower fixing sleeve are wrapped on the outer circumferential surface of the sealing sleeve, so that the sealing sleeve can be effectively prevented from deforming, and the fluid in the pipeline is prevented from leaking from the joint.

Drawings

FIG. 1 is a perspective view of a quick connect high pressure resistant pipe joint of the present invention;

FIG. 2 is a schematic view of a quick connect high pressure resistant fitting according to the present invention;

FIG. 3 is a schematic view of the assembly of the quick connect high pressure resistant fitting of the present invention;

FIG. 4 is a schematic plan view of the housing of the present invention;

fig. 5 is a schematic cross-sectional view of a quick connect high pressure resistant pipe joint of the present invention.

The correspondence between the names and reference numbers of the components in fig. 1 to 5 is as follows:

the sealing device comprises a shell 1, a sealing sleeve 2, a fixing sleeve 3, a joint cavity 10, a left shell 11, a right shell 12, a shell panel 13, a shell body 14, an outward-turning threaded hole 110, a through hole 120, a reinforcing rib 131, a joint groove 141, a placing groove 142, an opening 143, a limiting part 144, limiting

slopes

20 and 30, a sleeve 21, a sealing reinforcing rib 22, a suction table 23, an upper fixing sleeve 31, a lower fixing sleeve 32 and a pipeline interface 33.

Detailed Description

The utility model provides a high-pressure-resistant pipe joint capable of being quickly connected, which improves the pressure-resistant strength of the joint through a left shell and a right shell which are buckled, and avoids the joint from bursting under high pressure; the upper and lower fixing sleeves sleeved on the sealing sleeve avoid the deformation of the sealing sleeve, and the sealing performance of the joint is greatly improved. The utility model is described in detail below with reference to the drawings and the detailed description.

As shown in fig. 1 to 5, the quick-connection high-pressure resistant pipe joint provided by the utility model comprises a shell 1, a sealing sleeve 2 and a fixing sleeve 3, wherein the shell 1 is buckled left and right to form a joint cavity 10; the sealing sleeve 2 is arranged in the joint cavity 10 and used for sealing the pipeline; the fixed sleeve 3 is buckled up and down, and the inner diameter size of the fixed sleeve is matched with the outer diameter size of the sealing sleeve 2 and wraps the outer circumferential surface of the sealing sleeve 2.

Specifically, the casing 1 includes a left casing 11 and a right casing 12, and the left casing 11 and the right casing 12 are buckled and arranged, and both include a casing panel 13 and a casing body 14 arranged on the casing panel 13. The four corners of the shell panel of the left shell 11 are provided with outwards-turned threaded holes 110, the four corners of the shell panel of the right shell 12 are provided with through holes 120, the left shell 11 and the right shell 12 are fixed through bolts, and the bolts can penetrate through the through holes 120 to be directly connected with the outwards-turned threaded holes 110 without external nuts. The end faces of the housing panels 13 that are engaged with each other are further provided with reinforcing ribs 131 to improve the pressure resistance of the housing 1.

The end surfaces of the housing body 14 that engage with each other are provided with joint grooves 141 and a placement groove 142, the joint grooves 141 are provided at the upper and lower ends of the left and

right cases

11 and 12, and the upper and lower ends of the joint grooves 141 are provided with openings 143. The sealing sleeve 2 and the fixing sleeve 3 are arranged in the placing groove 142, and a limiting part 144 is arranged in the placing groove 142. The upper end and the lower end of the fixed sleeve 3 and the sealing sleeve 2 are provided with limiting

slopes

30 and 20 which are clamped with the limiting part 144.

The sealing sleeve 2 is sleeved on the joint end of the pipeline, the sealing sleeve 2 comprises a sleeve 21, an annular sealing reinforcing rib 22 is arranged on the inner side face of the sleeve 21, the sealing reinforcing rib 22 protrudes inwards to be arranged on the upper end and the lower end of the sleeve 21, an annular suction table 23 is further arranged on the upper end and the lower end of the sleeve 21, the suction table 23 is connected with the upper end and the lower end of the sleeve 21 respectively, the suction table 23 is arranged in an inwards inclined mode along the axis direction of the sleeve 21, and the inclined angle is 45 degrees. The pipeline is inserted in the sealing sleeve 2, the port of the pipeline is abutted against the top surface and the bottom surface of the sealing reinforcing rib 22, and the suction table 23 is attached to the side wall of the pipeline to realize the sealing contact arrangement of the pipeline and the sealing sleeve 2.

The fixed sleeve 3 comprises an upper fixed sleeve 31 and a lower fixed sleeve 32 which are buckled up and down, the upper fixed sleeve 31 and the lower fixed sleeve 32 are respectively sleeved on the joint end of the pipeline, the upper fixed sleeve 31 and the lower fixed sleeve 32 are metal sleeves in a bowl shape, a pipeline interface 33 is arranged on the bottom surface of the metal sleeves, and the upper fixed sleeve 31 and the lower fixed sleeve 32 are sleeved on the pipeline through the pipeline interface 33. The inner diameter of the upper fixing sleeve 31 and the lower fixing sleeve 32 is matched with the outer diameter of the sealing sleeve 2, and the upper fixing sleeve 31 and the lower fixing sleeve 32 enclose a fixing cavity and wrap the outer circumferential surface of the sealing sleeve 2.

The working process of the utility model is as follows:

the upper fixing sleeve 31 and the lower fixing sleeve 32 are respectively sleeved on the connecting ends of the pipelines, the sealing sleeve 2 is arranged between the connecting ends of the two pipelines, the end surface of the pipeline is abutted against the sealing reinforcing rib 22, and the suction table 23 is close to the side wall of the pipeline. The upper fixing sleeve 31 and the lower fixing sleeve 32 are buckled, so that the upper fixing sleeve 31 and the lower fixing sleeve 32 are wrapped on the outer circumferential surface of the sealing sleeve 2 and are arranged in the placing groove 142 on the shell body 14, and the limiting part 144 on the placing groove 142 is clamped and limited with the

limiting slopes

20 and 30 on the sealing sleeve 2 and the fixing sleeve 3, so that the sealing sleeve 2 and the fixing sleeve 3 are stably arranged in the placing groove 142. The bolt passes through the through hole 120 and is directly connected with the outwards-turned threaded hole 110, and an external nut is not needed, so that the cost of consuming the nut is saved, and the mounting efficiency of the bolt is improved.

When fluid passes through the pipeline, the fluid pressure acts on the sealing reinforcing ribs 22, and the sealing reinforcing ribs 22 arranged in the fixed sleeve 3 can effectively avoid the joint burst caused by the deformation of the sealing sleeve 3. When the joint of the pipeline is in the leakage in the sealing sleeve 2, the suction platform 23 is connected with the sleeve and is obliquely arranged in the sleeve body along the axial direction, the leaked fluid acts on the suction platform 23 and can be tightly pressed to be tightly attached to the outer wall of the pipeline, and the larger the pressure of the leaked fluid is, the more tightly the suction platform 23 is attached to the outer wall of the pipeline, so that the fluid leakage is effectively prevented.

The quick-connection high-pressure-resistant pipe joint provided by the utility model has the following advantages:

(1) the left shell and the right shell which are buckled are enclosed to form a joint cavity, and the sealing sleeve and the pipeline joint are arranged in the joint cavity, so that the bearing capacity of the joint is greatly improved, and the joint is prevented from bursting due to overhigh pressure;

(2) the upper fixing sleeve and the lower fixing sleeve which are buckled are arranged on the sealing sleeve, and the outer circumferential surface of the sealing sleeve is wrapped by the upper fixing sleeve and the lower fixing sleeve, so that the sealing sleeve can be effectively prevented from deforming, and fluid in a pipeline is prevented from leaking from a joint;

(3) the sealing performance of the sealing sleeve is improved and the risk of joint leakage is greatly reduced by the sealing reinforcing ribs arranged in the sealing sleeve and the suction tables arranged at the upper end and the lower end of the sealing sleeve;

(4) set up spacing portion in the standing groove of casing, with the spacing slope block on fixed cover and the seal cover, set up fixed cover and seal cover firmly in the joint intracavity of casing, improved the stability that connects.

The present invention is not limited to the above-mentioned preferred embodiments, and any structural changes made under the teaching of the present invention shall fall within the scope of the present invention, which is similar or similar to the technical solutions of the present invention.

Claims

1. A quick connect, high pressure resistant pipe joint, comprising:

2. The quick connect, high pressure resistant pipe joint of claim 1 wherein said left housing and said right housing are secured by bolts, with outwardly turned threaded holes provided at the four corners of the housing panel of said left housing and through holes provided at the four corners of the housing panel of said right housing.

3. The quick connect, high pressure resistant pipe joint of claim 1 wherein said sealing boot comprises a sleeve having annular sealing ribs on the inside surface of said sleeve, said ribs projecting inwardly, the conduit resting on the top and bottom surfaces of said ribs.

4. The quick connect, high pressure resistant pipe joint of claim 3 wherein said sleeve has annular engaging members on each of said upper and lower ends, said engaging members being connected to said upper and lower ends of said sleeve and being angled inwardly along the axis of said sleeve.

5. The quick connect, high pressure resistant pipe coupling of claim 4, wherein said pull-in tab angle is 45 degrees.

6. The quick connect, high pressure resistant pipe joint as claimed in claim 1, wherein said upper and lower retaining sleeves are bowl-shaped metal sleeves, a pipe interface is provided on the bottom surface of said metal sleeves, and said upper and lower retaining sleeves are fitted over the pipe through said pipe interface.

7. The quick connect, high pressure resistant pipe joint of claim 1 wherein said housing panels have reinforcing ribs on their end surfaces that snap into each other.

8. The quick connect, high pressure resistant pipe joint of claim 1 wherein said housing body has end surfaces that snap together and are provided with: