CN217653454U

CN217653454U - PP (polypropylene) butt flange with good sealing effect

Info

Publication number: CN217653454U
Application number: CN202221226357.8U
Authority: CN
Inventors: 李宝利
Original assignee: Hebei Hongyuan Pipe Group Co ltd
Current assignee: Hebei Hongyuan Pipe Group Co ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-10-25
Anticipated expiration: 2032-05-20

Abstract

The utility model relates to a flange technical field especially relates to a sealed effectual PP counterflange. The PP butt flange with good sealing effect comprises a sleeve and a flange plate fixedly embedded at the bottom of the sleeve; install seal assembly on the sleeve pipe, just seal assembly includes annular gasbag, pipe and elastic contraction gasbag ring, the fixed gomphosis of annular gasbag is close to the one end of ring flange at the sleeve pipe, just install the pipe that a plurality of rings shape distribute on the annular gasbag, a plurality of the pipe communicates with elastic contraction gasbag ring each other. The utility model provides a sealed effectual PP flange has and has eliminated the hidden danger that causes sealed inefficacy because of pipeline vibration in structural style, has also guaranteed pipe connection's stability, and annular gasbag can effectual protection pipeline terminal surface, and annular gasbag also can offset the impact of partial pipeline terminal surface to the ring flange simultaneously.

Description

PP (polypropylene) butt flange with good sealing effect

Technical Field

The utility model relates to a flange technical field especially relates to a sealed effectual PP counterflange.

Background

PP flanges are parts that interconnect pipes to pipes, connected to pipe ends. In pipeline engineering, flanges are mainly used for the connection of pipelines. The flanges with different pressures have different thicknesses, the number of corresponding screw holes is different, the sizes of the screw holes are different, and different bolts are used. PP flanges, which are generally 1.0MPA pressure, refer to HG20539-92 in terms of the number and size of bolts. When the water pump and the valve are connected with a pipeline, the parts of the equipment and the equipment are also made into corresponding flange shapes, so that the connection is convenient, and the connection is called as flange connection. The flanges are provided with holes, and the two flanges are tightly connected through bolts.

The existing PP flange is single in function, inconvenient to use and poor in sealing effect, a gap is reserved at the joint of a pipeline and the pipeline, the sealing degree of the joint is influenced, and leakage is easy to generate.

Therefore, it is necessary to provide a new PP counterflange with good sealing effect to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a sealed effectual PP flange.

The utility model provides a sealed effectual PP counterflange includes:

a sleeve, and

the flange is fixedly embedded at the bottom of the sleeve;

install seal assembly on the sleeve pipe, just seal assembly includes annular gasbag, pipe and elastic contraction gasbag ring, the fixed gomphosis of annular gasbag is close to the one end of ring flange at the sleeve pipe, just install the pipe that a plurality of rings shape distribute on the annular gasbag, a plurality of the pipe communicates with elastic contraction gasbag ring each other.

Preferably, the conduit is embedded in a conduit groove formed in the outer wall of the sleeve, and the inner bag wall of the elastic contraction air bag ring is fixedly embedded in an annular groove formed in the sleeve.

Preferably, the annular air bag is trumpet-shaped, and the expanded end face of the annular air bag is fixedly embedded on the flange plate.

Preferably, the annular air bag is filled with a sufficient amount of gas.

Preferably, the elastically contractible balloon ring is communicated with the annular balloon through a catheter, and the elastically contractible force of the elastically contractible balloon ring is far greater than that of the annular balloon.

Preferably, one end of the sleeve, which is far away from the flange plate, is provided with a sleeving groove, and the sleeving groove is fixedly sleeved with an elastic outward-expanding sleeve.

Preferably, a plurality of mounting holes distributed annularly are formed in the flange plate.

Compared with the prior art, the utility model provides a sealed effectual PP counterflange has following beneficial effect:

1. the utility model discloses establish the pipeline cover on the sleeve pipe and press the pipeline in, make the annular gasbag on the pipeline pressfitting ring flange and press the gaseous internal pressure in the annular gasbag, thereby gaseous through the pipe fill elastic contraction gasbag ring and make elastic contraction gasbag ring inflation, therefore the elastic contraction gasbag ring that expands begins to extrude the cover and establishes the pipeline of establishing to the connecting pipe on the sleeve pipe insertion and realize the inseparable pressfitting to the pipeline, because the elastic contraction gasbag ring that expands is elastic structure, the structural style has eliminated because of the hidden danger that pipeline vibration caused the sealing failure, has also guaranteed the stability of pipe connection;

2. the annular air bag expanding end face of the utility model is fixedly embedded on the flange plate, so that after the pipeline is abutted on the flange plate, the annular air bag can effectively protect the end face of the pipeline, and simultaneously the annular air bag can offset the impact of part of the end face of the pipeline on the flange plate;

3. the utility model discloses before the cover was established the pipeline on the sleeve pipe, interior pressure elasticity expands the cover outward, follow-up pipeline cover establish the sleeve pipe on the back, because elasticity expands under the elastic force of cover outward for elasticity expands the cover outward and then has improved elasticity and expand the cover outward and be connected to the compactness with the pipe inner wall.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of a PP docking flange with a good sealing effect provided by the present invention;

FIG. 2 is a schematic view of the sleeve and flange of FIG. 1;

FIG. 3 is a schematic structural view of the connecting assembly shown in FIG. 1;

FIG. 4 is a cross-sectional structural view of the connection assembly of FIG. 3;

fig. 5 is a schematic structural view of the elastic expanding sleeve shown in fig. 1.

Reference numbers in the figures: 1. a sleeve; 1a, an annular groove; 1b, a conduit groove; 1c, a socket groove; 2. a flange plate; 2a, mounting holes; 3. a seal assembly; 31. an annular air bag; 32. a conduit; 33. an elastically contracting balloon ring; 4. An elastic external expanding sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following detailed description is provided for the specific embodiments of the present invention.

Referring to fig. 1 to 5, an embodiment of the present invention provides a PP docking flange with good sealing effect, where the PP docking flange with good sealing effect includes: a sleeve 1, a flange 2 and a seal assembly 3.

In the embodiment of the present invention, please refer to fig. 1, fig. 2, fig. 3 and fig. 4, a flange 2 is fixedly embedded at the bottom of the sleeve 1, and a plurality of mounting holes 2a distributed annularly are formed on the flange 2, a sealing assembly 3 is mounted on the sleeve 1, and the sealing assembly 3 includes an annular air bag 31, a conduit 32 and an elastically-contractible air bag ring 33, the annular air bag 31 is fixedly embedded at one end of the sleeve 1 close to the flange 2, and the annular air bag 31 is mounted with a plurality of conduits 32 distributed annularly, and the plurality of conduits 32 are communicated with the elastically-contractible air bag ring 33;

annular gasbag 31 is the loudspeaker form, just the fixed gomphosis of terminal surface is expanded outward to annular gasbag 31 on ring flange 2, and pipe 32 is embedded in the pipe groove 1b that the outer pipe wall of sleeve pipe 1 was seted up, the fixed gomphosis of inner bag wall of elastic contraction gasbag ring 33 is in the ring channel 1a that sleeve pipe 1 was seted up, and annular gasbag 31 intussuseption is filled with the sufficient gas, elastic contraction gasbag ring 33 communicates each other through pipe 32 and annular gasbag 31, just elastic contraction power of elastic contraction gasbag ring 33 is far greater than annular gasbag 31.

It should be noted that: firstly, coating adhesive glue on a sleeve 1, sleeving a pipeline on the sleeve 1, pressing the pipeline in the sleeve 1, pressing the pipeline on the annular air bag 31 on the pipeline pressing flange plate 2, and pressing the gas in the annular air bag 31 in an inner mode, so that the gas is filled into an elastic shrinkage air bag ring 33 through a guide pipe 32, and the elastic shrinkage air bag ring 33 is expanded, therefore, the expanded elastic shrinkage air bag ring 33 begins to extrude and sleeve the pipeline inserted on a connecting pipe on the sleeve 1, and the pipeline is tightly pressed, because the expanded elastic shrinkage air bag ring 33 is of an elastic structure, the hidden danger of sealing failure caused by pipeline vibration is eliminated in the structural form, the stability of pipeline connection is also ensured, and the subsequent process of waiting for the adhesive glue to be cured is carried out;

it should also be noted that: because the flaring end face of the annular air bag 31 is fixedly embedded on the flange 2, after the pipeline is abutted on the flange 2, the annular air bag 31 can effectively protect the end face of the pipeline, and meanwhile, the annular air bag 31 can offset the impact of part of the end face of the pipeline on the flange 2.

In the embodiment of the present invention, please refer to fig. 1, fig. 2 and fig. 5, a sleeve groove 1c is formed at one end of the sleeve 1 away from the flange 2, and an elastic outer expanding sleeve 4 is fixedly sleeved on the sleeve groove 1 c.

It should be noted that: before the guide pipeline is sleeved on the sleeve 1, the internal pressure elasticity expands the sleeve 4 outwards, and after the sleeve 1 is sleeved on the pipeline, the elasticity expands the sleeve 4 outwards due to the elastic acting force of the elasticity expand the sleeve 4 outwards, so that the connection tightness between the elasticity expand the sleeve 4 outwards and the inner wall of the pipeline is improved.

The utility model provides a sealed effectual PP flange's theory of operation as follows:

firstly, coating adhesive glue on a sleeve 1, sleeving a pipeline on the sleeve 1, pressing the pipeline in the sleeve 1, pressing the pipeline on the annular air bag 31 on the pipeline pressing flange plate 2, and pressing the gas in the annular air bag 31 in an inner mode, so that the gas is filled into an elastic shrinkage air bag ring 33 through a guide pipe 32, and the elastic shrinkage air bag ring 33 is expanded, therefore, the expanded elastic shrinkage air bag ring 33 begins to extrude and sleeve the pipeline inserted on a connecting pipe on the sleeve 1, and the pipeline is tightly pressed, and because the expanded elastic shrinkage air bag ring 33 is of an elastic structure, the hidden danger of sealing failure caused by pipeline vibration is eliminated in the structural form, and the stability of pipeline connection is also ensured;

because the outward-expanding end face of the annular air bag 31 is fixedly embedded on the flange plate 2, after the pipeline is abutted on the flange plate 2, the annular air bag 31 can effectively protect the end face of the pipeline, and meanwhile, the annular air bag 31 can offset the impact of part of the end face of the pipeline on the flange plate 2;

before the guide pipeline is sleeved on the sleeve 1, the elastic outer expanding sleeve 4 is pressed in, and after the sleeve 1 is sleeved on the pipeline, the elastic outer expanding sleeve 4 expands outwards due to the elastic acting force of the elastic outer expanding sleeve 4, so that the connection tightness between the elastic outer expanding sleeve 4 and the inner wall of the pipeline is improved.

The above-mentioned only be the embodiment of the present invention, not consequently the restriction of the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transform made of the content of the specification and the attached drawings, or directly or indirectly use in other relevant technical fields, all including in the same way the patent protection scope of the present invention.

Claims

1. The utility model provides a sealed effectual PP flange that docks, includes:

a bushing (1), and

a flange (2) fixedly embedded at the bottom of the sleeve (1);

its characterized in that, install seal assembly (3) on sleeve pipe (1), just seal assembly (3) include annular gasbag (31), pipe (32) and elastic shrinkage gasbag ring (33), the fixed gomphosis of annular gasbag (31) is close to the one end of ring flange (2) in sleeve pipe (1), just install pipe (32) that a plurality of rings shape distribute on annular gasbag (31), a plurality of pipe (32) and elastic shrinkage gasbag ring (33) communicate each other.

2. The PP butt flange with good sealing effect according to claim 1, wherein the guide pipe (32) is embedded in a guide pipe groove (1 b) formed in the outer pipe wall of the sleeve (1), and the inner bag wall of the elastic shrinkage air bag ring (33) is fixedly embedded in an annular groove (1 a) formed in the sleeve (1).

3. The PP butt flange with good sealing effect as claimed in claim 2, wherein the annular air bag (31) is trumpet-shaped, and the outward expansion end face of the annular air bag (31) is fixedly embedded on the flange plate (2).

4. A PP counterflange with good sealing effect according to claim 3, characterised in that the annular air bag (31) is filled with a sufficient quantity of gas.

5. The PP counterflange with good sealing effect according to claim 4, wherein the elastically contractible balloon ring (33) is in communication with the annular balloon (31) through a conduit (32), and the elastically contractible balloon ring (33) has an elastic contractible force much greater than that of the annular balloon (31).

6. The PP butt flange with good sealing effect according to claim 1, wherein one end of the sleeve (1) far away from the flange plate (2) is provided with a sleeving groove (1 c), and the sleeving groove (1 c) is fixedly sleeved with an elastic outward-expanding sleeve (4).

7. The PP butt flange with good sealing effect according to claim 1, wherein the flange plate (2) is provided with a plurality of mounting holes (2 a) distributed annularly.