CN219035961U - Detachable air blocking device - Google Patents

Abstract

The utility model discloses a detachable blocking device, which comprises an internal blocking structure, wherein the internal blocking structure is hermetically arranged in a pipeline; the inner plugging structure is formed with a flat head-shaped screw rod part; the screw part is provided with a silica gel extrusion ball; extrusion blocks are movably arranged on two sides of the silica gel extrusion ball; rotating the screw rod part to form two groups of extrusion blocks to move in opposite directions and extruding the silica gel extrusion ball to an expansion state so as to realize sealing and fitting in the pipe body; the external connecting structure is in threaded connection with the internal plugging structure; the external connection structure and the internal blocking structure form a connection or disconnection state so as to realize that the internal blocking structure is put in and taken out of the pipeline; this device structural optimization, convenient operation through the device can be quick accurate with the unit shutoff plug carry out the shutoff, make things convenient for unit user's before the table gas leakage maintenance rush repair, reduce maintenance rush repair time, reduce maintenance personnel work load, guarantee simultaneously that installation is sealed, natural gas does not leak, avoid the emergence of potential safety hazard.

Description

Detachable air blocking device

Technical Field

The utility model relates to the technical field of natural gas maintenance equipment, in particular to a detachable gas blocking device.

Background

In the existing natural gas application, when the pipeline leakage needs to be maintained before emergency repair of the meter, the situation that the user cannot be contacted in time often happens, and because the user cannot be contacted, in order to avoid the influence of stopping the gas for the user caused by closing the building main valve, the method adopted in the maintenance operation at present is that a unit user is opened to turn over a plug, and then wet rag is used for plugging and then the operation is carried out;

the above-mentioned plugging method still has the following disadvantages:

1. the plugging cannot be performed quickly and timely, and the plugging time is too long;

2. sealing cannot be completed, a small amount of air is still leaked, and potential safety hazards exist;

3. if the emergency repair can not be completed immediately under special conditions, special personnel are required to watch the emergency repair, and labor is consumed;

therefore, adopt wet rag to carry out the shutoff in the natural gas pipeline leakage maintenance process among the prior art, it takes up an overlength to have the shutoff, sealed effect is not good, need the special guard, consume the problem of manpower, design a section structural optimization, the simple operation, make things convenient for unit user's before the table gas leakage maintenance to salvage, reduce maintenance repair time, sealed effectual, guarantee that gas does not leak, avoid the potential safety hazard, reduce maintenance personnel work load, further promote work efficiency's device.

Disclosure of Invention

The detachable air blocking device is optimized in structure, convenient to operate, convenient for front-meter air leakage maintenance and repair of unit users, good in sealing effect, capable of guaranteeing no leakage of air, avoiding potential safety hazards, reducing workload of maintenance personnel and further improving working efficiency.

In order to achieve the above object, the present utility model provides the following technical solutions:

a detachable gas shutoff device, which is applied in a natural gas pipeline, comprising:

the inner plugging structure is hermetically arranged in the pipeline;

the inner plugging structure is provided with a flat head-shaped screw rod part;

a silica gel extrusion ball is arranged on the screw rod part; wherein the method comprises the steps of

Extrusion blocks are movably arranged on two sides of the silica gel extrusion ball;

rotating the screw rod part to form two groups of extrusion blocks to move in opposite directions and extruding the silica gel extrusion ball to an expansion state so as to realize sealing fit in the pipe body; and

the external connecting structure is in threaded connection with the internal plugging structure;

the external connection structure and the internal blocking structure form a connection or disconnection state so as to realize that the internal blocking structure is put in and taken out of the pipeline.

The external connection structure includes:

the device comprises a first cylinder and a second cylinder, wherein the first cylinder and the second cylinder are of a tubular structure with hollow interiors and two open ends;

the second cylinder body is inserted into the first cylinder body;

one end of the second cylinder body is sleeved at the bottom end of the screw rod part;

the other end of the second barrel body is inserted with a hexagonal wrench along the length direction of the second barrel body; wherein the method comprises the steps of

And rotating the hexagonal wrench to realize synchronous rotation of the driving screw part.

The external connection structure further includes:

one end of the rotary joint is connected to the screw rod part;

the other end of the rotary joint is in threaded connection with the two parts of the cylinder body.

A connecting hole is formed outside one port of the second cylinder body, which is far away from the screw rod part;

a conjoined lock is fixedly arranged in the connecting hole;

the combined lock limiting device moves to drive the screw rod part to move.

A limiting slit is formed in one part of the cylinder body along the length direction of the cylinder body;

a limiting strip matched with the limiting seam is arranged on the second barrel;

the limiting strip is embedded and inserted into the limiting seam to form a first cylinder body part and a second cylinder body part which are fixedly connected.

In the technical scheme, the detachable air blocking device has the following beneficial effects:

the detachable air blocking device provided by the utility model has the advantages that the structure is optimized, the operation is convenient, the unit turning plug can be quickly and accurately blocked through the device, the front air leakage maintenance and repair of a unit user are facilitated, the maintenance and repair time is reduced, the workload of maintenance staff is reduced, the installation sealing and the natural gas leakage are ensured, and the occurrence of potential safety hazards is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

Fig. 1 is a schematic structural diagram of a detachable gas shutoff device according to an embodiment of the present utility model;

fig. 2 is a schematic structural exploded view of a detachable air shutoff device according to an embodiment of the present utility model.

Reference numerals illustrate:

1. an internal blocking structure; 2. an external connection structure; 3. a hexagonal wrench; 4. a conjoined lock;

11. a screw portion; 12. a silica gel extrusion ball; 13. extruding a block;

21. a first cylinder; 22. a second cylinder; 23. a rotary joint;

211. limiting slits;

221. a connection hole; 222. and a limit strip.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

It should be noted that, as used herein, the terms "upper," "bottom," "one end," "another end," and the like refer to an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, for convenience of description and simplicity of description, and the like are presented for purposes of illustration only, and are not intended to indicate or imply that the apparatus or element in question must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model; furthermore, the terms "a" and "an" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

See fig. 1-2;

the utility model discloses a detachable gas blocking device, which is applied to a natural gas pipeline and comprises the following components:

the inner plugging structure 1 is arranged in the pipeline in a sealing way;

the inner plugging structure 1 is formed with a flat head-shaped screw portion 11;

a silica gel extrusion ball 12 is arranged on the screw part 11; wherein the method comprises the steps of

Extrusion blocks 13 are movably arranged on two sides of the silica gel extrusion ball 12;

the screw rod part 11 is rotated to form two groups of extrusion blocks 13 which move in opposite directions and extrude the silica gel extrusion balls 12 to an expansion state so as to realize sealing fit in the pipe body; and

the external connecting structure 2, the internal plugging structure 1 is in threaded connection with the external connecting structure 2;

the external connection structure 2 and the internal blocking structure 1 form a connection or disconnection state so as to realize that the internal blocking structure 1 is put in and taken out of the pipeline.

Specifically, the utility model provides a detachable air blocking device, which mainly comprises two parts, an inner blocking structure 1 and an outer connecting structure 2, wherein the inner blocking structure 1 is arranged in a pipeline, and the outer connecting structure 2 is used for being matched with the inner blocking structure 1 to be put in or taken out from the pipeline; the flat head-shaped screw rod part 11 of the internal plugging structure 1 is inserted into a pipeline, the flat head-shaped screw rod part 11 is provided with a silica gel extrusion ball 12 and extrusion blocks 13, the extrusion blocks 13 are distributed on two sides of the silica gel extrusion ball 12, two groups of extrusion blocks 13 are reversely arranged with threads on the flat head-shaped screw rod part 11, when the flat head-shaped screw rod part 11 rotates, the two groups of extrusion blocks 13 move towards the direction of the silica gel extrusion ball 12 until the silica gel extrusion ball 12 is extruded to expand so as to fill the pipeline inside with sealing, an operator disconnects the external connection structure 2 from the internal plugging structure 1, the external connection structure 2 is taken out, and the internal plugging structure 1 is positioned inside the pipeline for plugging.

The external connection structure 2 includes:

a first cylinder 21 and a second cylinder 22, wherein the first cylinder 21 and the second cylinder 22 are hollow and have a tubular structure with two open ends;

the second cylinder 22 is inserted into the first cylinder 21;

one end of the second cylinder 22 is sleeved at the bottom end of the screw part 11;

the other end of the second cylinder 22 is inserted with a hexagonal wrench 3 along the length direction; wherein the method comprises the steps of

The hexagonal wrench 3 is rotated to achieve synchronous rotation of the drive screw portion 11.

Specifically, the first barrel part 21 and the second barrel part 22 are sleeved together, the second barrel part 22 is located in the first barrel part 21 and is slightly longer in length, one end of the second barrel part 22 is sleeved at the bottom end of the screw rod part 11, the hexagonal wrench 3 is inserted from the other end of the second barrel part 22 and forms a driving connection relation with the screw rod part 11, the hexagonal wrench 3 rotates to enable the screw rod part 11 to synchronously rotate, and then the two groups of extrusion blocks 13 extrude the silica gel extrusion balls 12 to form expansion, so that the pipeline sealing is completed.

The external connection structure 2 further includes:

a rotary joint 23, one end of the rotary joint 23 being connected to the screw portion 11;

the other end of the rotary joint 23 is screwed with the second cylinder 22.

Specifically, the rotary joint 23 is a connecting piece of the inner plugging structure 1 and the outer connecting structure 2, and the rotary joint 23 and the barrel body two parts 22 form threaded connection, so that the device is convenient to assemble and disassemble.

The outer part of a port of the second cylinder part 22, which is far away from the screw part 11, is provided with a connecting hole 221;

a conjoined lock 4 is fixedly arranged in the connecting hole 221;

the movement of the device is limited by the conjoined lock 4 so as to realize the movement of the driving screw part 11 of the rotary hexagonal wrench 3.

Specifically, one hand of the operator is used to rotate the hexagonal wrench 3, and the other hand is used to hold the conjoined lock 4 so as to fix the device.

A limiting slit 211 is formed in the first cylinder 21 along the length direction;

a limiting strip 222 matched with the limiting slit 211 is arranged on the second barrel part 22;

the limit bar 222 is inserted into the limit slit 211 to form a connection and fixation of the first cylinder 21 and the second cylinder 22.

Specifically, the limiting bar 222 of the second barrel 22 is fitted in the limiting slit 211 of the first barrel 21, and when the first barrel 21 is rotated, the second barrel 22 rotates synchronously, i.e., the first barrel 21 is rotated to disconnect or connect the second barrel 22 with the rotary joint 23.

The specific using method is as follows:

1. rapidly inserting the device (end 1 of the inner plugging structure) into the pipeline;

2. holding the conjoined lock 4, rotating the hexagonal wrench 3 anticlockwise (two groups of extrusion blocks 13 move towards each other and extrude the silica gel extrusion balls 12), and extruding and expanding the silica gel extrusion balls 12 to achieve a sealing effect;

3. releasing the conjoined lock 4, rotating the cylinder body one part 21 clockwise and taking out (the air blocking is completed);

4. after maintenance or rescue operation is completed, inserting the second barrel part 22 into the rotary joint 23 and rotating the first barrel part 21 anticlockwise so as to be connected with the rotary joint 23;

5. and then fixing the conjoined lock 4, rotating the hexagonal wrench 3 clockwise to restore the original shape of the silica gel extrusion ball 12, and taking out the whole device.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims (5)

1. A detachable gas shutoff device, which is applied in a natural gas pipeline, and is characterized by comprising:

an inner blocking structure (1), the inner blocking structure (1) being sealingly mounted within the pipe;

the inner plugging structure (1) is provided with a flat head-shaped screw rod part (11);

a silica gel extrusion ball (12) is arranged on the screw rod part (11); wherein the method comprises the steps of

Extrusion blocks (13) are movably arranged on two sides of the silica gel extrusion ball (12);

rotating the screw rod part (11) to form two groups of extrusion blocks (13) to move oppositely and extrude the silica gel extrusion balls (12) to an expansion state so as to realize sealing and fitting in the pipe body; and

the external connecting structure (2), the internal plugging structure (1) is in threaded connection with the external connecting structure (2);

the external connection structure (2) and the internal blocking structure (1) form a connection or disconnection state so as to realize that the internal blocking structure (1) is put in and taken out of the pipeline.

2. A detachable gas shut-off device according to claim 1, characterized in that the external connection structure (2) comprises:

a first cylinder (21) and a second cylinder (22), wherein the first cylinder (21) and the second cylinder (22) are hollow and have tubular structures with two open ends;

the second cylinder body (22) is inserted into the first cylinder body (21);

one end of the second cylinder body (22) is sleeved at the bottom end of the screw rod part (11);

the other end of the second cylinder body (22) is inserted with a hexagonal wrench (3) along the length direction; wherein the method comprises the steps of

The hexagonal wrench (3) is rotated to realize synchronous rotation of the driving screw part (11).

3. A detachable gas shut-off device according to claim 2, characterized in that the external connection structure (2) further comprises:

a rotary joint (23), wherein one end of the rotary joint (23) is connected to the screw part (11);

the other end of the rotary joint (23) is in threaded connection with the two parts (22) of the cylinder body.

4. A detachable gas shutoff device according to claim 3, wherein:

a connecting hole (221) is formed outside a port of the second cylinder body (22) far away from the screw rod part (11);

a conjoined lock (4) is fixedly arranged in the connecting hole (221);

the combined lock (4) is used for limiting the movement of the device so as to realize the movement of the screw part (11) driven by the rotary hexagonal wrench (3).

5. A detachable gas shutoff device according to claim 2, wherein:

a limiting slit (211) is formed in one part (21) of the cylinder along the length direction of the cylinder;

a limiting strip (222) matched with the limiting slit (211) is arranged on the second cylinder body (22);

the limiting strips (222) are embedded and inserted into the limiting slits (211) to form a first cylinder (21) and a second cylinder (22) which are fixedly connected.

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