CN216112765U

CN216112765U - Blind plate assembly

Info

Publication number: CN216112765U
Application number: CN202122418972.0U
Authority: CN
Inventors: 王盛宏
Original assignee: Wuxi Liangxuan Construction Machinery Manufacturing Co ltd
Current assignee: Wuxi Liangxuan Construction Machinery Manufacturing Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-03-22
Anticipated expiration: 2031-10-08

Abstract

The utility model discloses a blind plate assembly, and provides the following technical scheme aiming at the problem that a blind plate is easy to age. The inner plug of the pipeline is plugged through the threaded connection of the through groove formed in the flange ring, liquid in the pipeline directly contacts the inner plug, other parts of the blind plate assembly are not in contact with liquid in the pipeline, the damage of other parts of the blind plate assembly under the long-term erosion of solution is prevented, and the inner plug is connected with the flange ring through the threads, so that the inner plug can be replaced quickly after the inner plug is aged; the inner plug is provided with a circular plugging piece, can be attached to the inner wall of a pipeline, and contributes to improving the sealing performance of the blind plate assembly.

Description

Blind plate assembly

Technical Field

The present invention relates to a pipe fitting, and more particularly, it relates to a blind plate assembly.

Background

The blind plate is commonly known in the production and construction of the flange cover, and some blind plates are also known as blind flanges or pipe plugs. It is a flange without holes in the middle, and is used for plugging the pipeline opening. The function is the same as that of the closure and cap, except that the blind seal is a removable seal and the closure seal is not ready to be opened. The sealing surface of the blind plate has more types, and comprises a plane, a convex surface, a concave-convex surface, a tongue-and-groove surface and a ring connecting surface. The blind plate is made of carbon steel, stainless steel, alloy steel, copper, aluminum, PVC, PPR and the like.

At present, a Chinese patent with an authorization publication number of CN205579022U discloses a blind plate, which comprises a blind plate body, wherein a central slot hole is arranged in the center of the blind plate body, a sealing positioning ring groove is arranged on the blind plate body, a sealing gasket is arranged in the sealing positioning ring groove, and a positioning clamping channel is arranged from the position of the central slot hole on the blind plate body to the outer edge of the blind plate body.

Although the blind plate is simple in integral structure and simple and convenient in manufacturing process, the connection limitation is reduced, the service life is prolonged, the cost is saved, the connection is reliable, and the firmness, the sealing property and the pressure resistance of the blind plate are improved. However, the blind plate main body of the blind plate is contacted with liquid in the pipeline for a long time, and the liquid in the pipeline easily and slowly erodes the blind plate main body under long-term use, and finally, the blind plate main body is corroded and damaged. Therefore, such a blind has room for improvement.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a blind plate assembly which has the advantages.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a blind plate assembly, includes and is used for along a plurality of connecting holes that are used for installing the fastener that circumference was seted up on flange circle and the flange circle of pipe connection, the flange circle is seted up logical groove along the axis direction, leads to the groove and has seted up the internal thread, leads to the one end threaded connection that the groove is close to the pipeline and has an interior stopper, and the one end that the interior stopper is close to the pipeline sets up the circular shutoff piece that diameter and pipeline internal diameter size equal.

By adopting the technical scheme, the through groove formed in the flange ring is in threaded connection with the inner plug for blocking the pipeline, liquid in the pipeline is in direct contact with the inner plug, other parts of the blind plate assembly are not in contact with liquid in the pipeline, damage to other parts of the blind plate assembly under the long-term erosion of the solution is prevented, and the inner plug is in threaded connection with the flange ring, so that the inner plug can be quickly replaced after the inner plug is aged; the inner plug is provided with a circular plugging piece, can be attached to the inner wall of a pipeline, and contributes to improving the sealing performance of the blind plate assembly.

Furthermore, the one side threaded connection who keeps away from the pipeline in logical groove has outer stopper, and the external screw thread has been seted up to the part that outer stopper stretched into logical groove, and outer stopper exposes the part setting in logical groove and is used for the outer edge of the hexagonal of being connected with interior hexagonal spanner.

By adopting the technical scheme, the outer plug is convenient to disassemble quickly, and the mounting convenience of the blind plate assembly is improved.

Further, an O-shaped ring is arranged between the outer plug and the inner plug.

By adopting the technical scheme, the sealing performance of the blind plate assembly is improved, when the inner plug is slightly leaked, the O-shaped ring can play a role in secondary sealing, and the sealing stability of the blind plate assembly is improved.

Furthermore, the O-shaped ring is made of styrene butadiene rubber.

By adopting the technical scheme, the service life of the O-shaped ring can be prolonged, and the O-shaped ring is prevented from being aged after being used for a long time, so that the sealing performance of the blind plate assembly is influenced.

Furthermore, a plurality of first screw holes are arranged along the circumferential direction of the outer plug, a second screw hole is arranged at the position corresponding to the first screw hole of the inner plug, and the first screw hole is connected with the second screw hole through a connecting screw.

By adopting the technical scheme, the outer plug and the inner plug are connected through the screw, the inner plug and the outer plug can be mutually fixed, a bidirectional fixing effect is achieved, the structural stability of the blind plate assembly is improved, and the blind plate assembly is prevented from being out of use due to the fact that the inner plug or the outer plug falls off.

Further, the internal thread and the external thread are both provided with 45-degree chamfers.

By adopting the technical scheme, the threaded connection can be better performed, and the mounting convenience of the sealing plate is improved.

Furthermore, the inner plug is made of nylon material.

By adopting the technical scheme, when the inner plug made of the nylon material is contacted with liquid in the pipeline, the nylon material can absorb water to expand, so that the pipeline can be blocked better, and the sealing property of the blind plate is improved.

Furthermore, the inner plug is made of polytetrafluoroethylene materials.

By adopting the technical scheme, when the liquid conveyed in the pipeline is acidic or alkaline, the liquid can generate an erosion effect on the inner plug.

In conclusion, the utility model has the following beneficial effects:

1. the other parts of the blind plate assembly except the inner plug are not contacted with liquid in the pipeline, so that the blind plate assembly is not easy to age;

2. the structure of the blind plate assembly is simple;

3. and is quick and simple when installed in a pipeline.

Drawings

FIG. 1 is a cross-sectional view of a blind assembly of the present invention;

FIG. 2 is a top view of a flange ring of the present invention;

FIG. 3 is a cross-sectional view of a flange ring of the present invention;

FIG. 4 is a cross-sectional view of the outer plug of the present invention;

FIG. 5 is an enlarged view of portion A of FIG. 4;

fig. 6 is a cross-sectional view of the inner plug of the present invention.

In the figure: 1. a flange ring; 11. connecting holes; 12. a through groove; 2. an inner plug; 21. a circular blocking piece; 22. a second screw hole; 3. an outer plug; 31. a hexagonal outer edge; 32. a first screw hole; 4. an O-shaped ring; 5. and (6) chamfering.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Referring to fig. 1, a blind plate assembly, including be used for with a plurality of connecting holes 11 that are used for installing the fastener that are seted up along circumference on flange circle 1 and the flange circle 1 of pipe connection, flange circle 1 sets up logical groove 12 along the axis direction, and logical groove 12 sets up the internal thread, and logical groove 12 is close to the one end threaded connection of pipeline has interior stopper 2, and the one end that interior stopper 2 is close to the pipeline sets up the circular shutoff piece 21 that diameter and pipeline internal diameter size equal.

Specifically, referring to fig. 1, a cylindrical through groove 12 is formed in a flange ring 1, the through groove 12 is in threaded connection with a cylindrical inner plug 2 blocking a pipeline, liquid in the pipeline directly contacts the inner plug 2, and other parts of a blind plate assembly are not in contact with the liquid in the pipeline. Interior stopper 2 and flange circle 1 pass through threaded connection, and interior stopper 2 can be through manual rotation ageing, and stopper 2 leaves the flange circle in making, realizes the interior stopper 2 of quick replacement. The one end of interior stopper 2 in the pipeline is provided with circular shutoff piece 21, and circular shutoff piece 21 is cyclic annular outer edge, with interior stopper 2 fixed connection, can with the inner wall laminating of pipeline, helps improving the leakproofness of blind plate subassembly.

Referring to fig. 1 and 4, an outer plug 3 is connected to one side of the through groove 12 far away from the pipeline in a threaded manner, an external thread is arranged on a part of the outer plug 3 extending into the through groove 12, and a hexagonal outer edge 31 used for being connected with an inner hexagonal wrench is arranged on a part of the outer plug 3 exposed out of the through groove 12. The outer edge 31 of hexagonal is the specification hexagonal of cooperation hexagonal spanner shape, can make things convenient for the installation of blind plate subassembly through outer edge 31 quick dismantlement outer stopper 3 of hexagonal.

Referring to fig. 1, be provided with O type circle 4 between outer stopper 3 and the interior stopper 2, the internal diameter that logical groove 12 was led to the size of O type circle 4 equals, is convenient for improve blind plate subassembly leakproofness, and when interior stopper 2 appeared slightly revealing, O type circle 4 can play the secondary seal effect, helps improving the sealed stability of blind plate subassembly. The O-shaped ring 4 is made of styrene butadiene rubber materials, so that the service life of the O-shaped ring 4 can be prolonged, and the O-shaped ring 4 is prevented from being aged after being used for a long time, so that the sealing performance of the blind plate assembly is influenced.

Referring to fig. 4, the outer plug 3 is provided with a plurality of first screw holes 32 along the circumferential direction, the inner plug 2 is provided with second screw holes 22 at positions corresponding to the first screw holes 32, and the first screw holes 32 and the second screw holes 22 are connected by connecting screws. Outer stopper 3 and interior stopper 2 are connected through the screw, can make interior stopper 2 and outer stopper 3 can fix mutually, play a two-way fixed action, help improving the structural stability of blind plate subassembly, prevent that interior stopper 2 or outer stopper 3 from droing and make the blind plate subassembly lose usefulness.

Referring to fig. 4 and 5, the internal thread and the external thread are both provided with 45-degree chamfers 5, and the chamfers 5 can play a certain lubricating role in threaded connection, so that the sealing plate can be conveniently installed.

Referring to fig. 6, the inner plug 2 is made of nylon material or polytetrafluoroethylene material. When the inner plug 2 made of the nylon material contacts liquid in the pipeline, the nylon material can absorb water to expand, so that the pipeline can be blocked better, and the sealing performance of the blind plate is improved. When the inner plug 2 is made of polytetrafluoroethylene materials, the inner plug 2 can be prevented from being corroded by liquid when the liquid conveyed in a pipeline is acidic or alkaline.

The working process and principle of the embodiment are as follows:

the inner plug 2 for blocking the pipeline is in threaded connection through a through groove 12 formed in the flange ring 1, liquid in the pipeline directly contacts the inner plug 2, other parts of the blind plate assembly are not in contact with liquid in the pipeline, damage to other parts of the blind plate assembly under long-term erosion of solution is prevented, and the inner plug 2 is in threaded connection with the flange ring 1, so that the inner plug 2 can be replaced quickly after the inner plug 2 is aged; the inner plug 2 is provided with a circular plugging piece 21 which can be attached to the inner wall of the pipeline, and the sealing performance of the blind plate assembly is improved.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. A blind plate assembly, comprising: including being used for a plurality of connecting holes (11) that are used for installing the fastener of seting up along circumference on flange circle (1) and the flange circle (1) be connected with the pipeline, flange circle (1) is seted up and is seted up logical groove (12) along the axis direction, it has the internal thread to lead to groove (12), it has interior stopper (2) to lead to the one end threaded connection that groove (12) is close to the pipeline, the one end that interior stopper (2) are close to the pipeline sets up circular shutoff piece (21) that diameter and pipeline internal diameter size equal.

2. The blind assembly of claim 1 wherein: lead to groove (12) and keep away from one side threaded connection of pipeline and have outer stopper (3), the part that outer stopper (3) stretched into logical groove (12) has seted up the external screw thread, outer stopper (3) expose the part setting that leads to groove (12) and are used for edge (31) outside the hexagonal be connected with interior hexagonal spanner.

3. The blind assembly of claim 2 wherein: an O-shaped ring (4) is arranged between the outer plug (3) and the inner plug (2).

4. A blind plate assembly according to claim 3 wherein: the O-shaped ring (4) is made of styrene butadiene rubber materials.

5. The blind assembly of claim 2 wherein: a plurality of first screw holes (32) are seted up along circumference in outer stopper (3), second screw hole (22) are seted up in the position that first screw hole (32) correspond in interior stopper (2), and first screw hole (32) and second screw hole (22) are through connecting screwed connection.

6. The blind assembly of claim 5 wherein: the internal thread and the external thread are both provided with 45-degree chamfers (5).

7. The blind assembly of claim 1 wherein: the inner plug (2) is made of nylon materials.

8. The blind assembly of claim 1 wherein: the inner plug (2) is made of polytetrafluoroethylene materials.