Plugging device

By designing a sealing device with adjustment and connection parts, combined with the bracket clamping structure, the problem of inability to match pipes of different pipe diameters in the prior art is solved, and flexible and reliable pipe sealing is achieved, reducing costs.

CN222164046UActive Publication Date: 2024-12-13SEMICON TECH INNOVATION CENT(BEIJING) CORP
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Patent Information

Application Number
CN202420476222.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-12
Publication Date
2024-12-13
Estimated Expiration
2034-03-12

AI Technical Summary

Technical Problem

The prior art cannot effectively match pipelines of different pipe diameters, resulting in difficulty in temporary sealing, high cost and low reliability.

Method used

A sealing device including elastic sealing parts, adjusting parts and connectors is designed to drive the connector to rotate, press or relax the sealing parts through fasteners, adapt to different pipe diameters, and clamp the pipes through brackets to achieve Stable blocking.

Benefits of technology

Reliable sealing of pipes of different pipe diameters is achieved, cost reduction, and the flexibility and reliability of sealing are improved, and it is suitable for emergency sealing in multiple scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The plugging device is used for plugging a pipeline and comprises a plugging piece, a first adjusting piece and a second adjusting piece, the first adjusting piece and the second adjusting piece are fixedly arranged at the two ends of the plugging piece correspondingly, the first adjusting piece is provided with a first threaded hole penetrating through the first adjusting piece, and the second adjusting piece is provided with a second threaded hole penetrating through the second adjusting piece; a first hole penetrating through the plugging piece is formed in the plugging piece, the center line of the first threaded hole, the center line of the second threaded hole and the center line of the first hole are collinear, and the plugging piece is made of elastic materials and used for being arranged in the pipeline; the connecting piece comprises a first part and a second part which are connected with each other, the surface of the first part is provided with a first thread matched with the first threaded hole, the surface of the second part is provided with a second thread matched with the second threaded hole, and the rotation directions of the first thread and the second thread are different; and the fastening piece is connected with the connecting piece, is arranged outside the pipeline and is used for driving the connecting piece to rotate so as to compress or loosen the plugging piece. The plugging device can be used for temporary plugging of water leakage and dismounting operation of pipelines with different pipe diameters.
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Description

Technical Field

[0001] The present application relates to pipeline system technology in the field of semiconductor manufacturing technology, and in particular to a plugging device. Background Art

[0002] The semiconductor manufacturing process involves various types of pipelines with different diameters, numerous pipelines, and complex media in the pipelines. In order to avoid the leakage of chemicals remaining from pipeline dismantling and modification operations and reduce the risk of chemical leakage, the pipeline needs to be temporarily blocked. It is mainly divided into the following situations: 1) For pipelines that have been temporarily cut, if the pipe mouth has not been specially treated and there is no matching blocking device at the factory, then when a medium leak occurs and emergency blocking is required, reliable blocking cannot be achieved. 2) The blocking cap adapted by the pipeline manufacturer must match the original design port, and can only be "one cap and one tube", which is costly. 3) There is no matching temporary blocking device at the chemical pipeline operation site.

[0003] However, most existing rubber seals are simple devices with no pressure bearing capacity, easy to fall off when scratched, and low reliability. The sealing device disclosed in the patent announcement number CN218845445U, entitled "A temporary pipe plugging device", requires a pipe that matches the pipe aperture, and has problems such as difficult cleaning, complex structure and high cost. Therefore, it is necessary to provide a new temporary plugging device that can match pipes of different diameters. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a plugging device for solving the problem in the prior art that pipes with different diameters cannot be matched.

[0005] The embodiment of the present application provides a plugging device for plugging a pipeline, comprising: a plugging member and a first adjusting member and a second adjusting member respectively fixedly arranged at two ends of the plugging member, the first adjusting member having a first threaded hole penetrating the first adjusting member, the second adjusting member having a second threaded hole penetrating the second adjusting member, the plugging member having a first hole penetrating the plugging member, the center lines of the first threaded hole, the second threaded hole and the first hole being collinear, the plugging member being made of an elastic material and being arranged in the pipeline; a connecting member, the connecting member comprising a first part and a second part connected to each other, the surface of the first part having a first thread adapted to the first threaded hole, the surface of the second part having a second thread adapted to the second threaded hole, the first thread and the second thread having opposite rotation directions, the first part penetrating the first threaded hole, and the second part penetrating the second threaded hole; a fastener connected to the connecting member, the fastener being arranged outside the pipeline, the fastener being used to drive the connecting member to rotate so as to tighten or loosen the plugging member.

[0006] In some embodiments, a bracket is further included, which is arranged outside the pipe and is used to clamp the pipe. The bracket includes a clamp, a base and a pull rod. The clamp and the base are connected by the pull rod. A second hole is set in the center of the base. The fastener and the sealing member are respectively located on both sides of the base. The connecting member passes through the second hole and penetrates the sealing member.

[0007] In some embodiments, the clamp and the base are arranged in parallel.

[0008] In some embodiments, a fixing block is fixedly disposed on the first end of the clamp, a third threaded hole is disposed inside the fixing block, and the inner diameter of the clamp is adjusted by fitting a bolt to the third threaded hole.

[0009] In some embodiments, a plurality of movable components are provided on the clamp, the base is provided with a first pull rod hole passing through the base, the movable component is provided with a second pull rod hole passing through the movable component, the first pull rod hole and the second pull rod hole are used for installing the pull rod, the first pull rod hole of the base is a slide groove, the number of the slide grooves corresponds to the bracket, and is used to adjust the bracket to be parallel to the pipe.

[0010] In some embodiments, the fixing block is mounted on one end of the clamp and the movable component is mounted on one end of the clamp, and the shapes thereof are respectively adapted to the pipes for clamping the pipes together.

[0011] In some embodiments, anti-slip parts are respectively provided on one end of the fixed block and the movable component facing the blocking member.

[0012] In some embodiments, third holes are symmetrically arranged on both sides of the second hole of the base, and fourth holes are correspondingly arranged on both sides of the first threaded hole of the first adjusting member, and the third hole and the fourth hole are used to pass a metal rod to prevent the blocking member from rotating with the connecting member.

[0013] In some embodiments, the first adjusting member and the second adjusting member are made of metal material.

[0014] As described above, the plugging device of the present invention has the following beneficial effects: by fixing the first adjusting member and the second adjusting member at both ends of the plugging member, the first hole, the first threaded hole and the second threaded hole whose center lines are collinear are respectively penetrated through the plugging member, the first adjusting member and the second adjusting member. The connecting member includes a first part and a second part connected to each other, the surface of the first part has a first thread that matches the first threaded hole, the surface of the second part has a second thread that matches the second threaded hole, and the rotation directions of the first thread and the second thread are opposite. The fastener is connected to the connecting member and is arranged outside the pipeline to drive the connecting member to rotate so as to tighten or loosen the plugging member. The plugging device of the present application can block the pipeline in a tightened state and can be taken out of the pipeline in a relaxed state. It can match pipelines of different diameters and play a role in temporarily blocking the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following figures describe in detail the exemplary embodiments disclosed in this application. The same reference numerals represent similar structures in several views of the drawings. Those skilled in the art will understand that these embodiments are non-limiting, exemplary embodiments, and the drawings are only for the purpose of illustration and description, and are not intended to limit the scope of this application. Other embodiments may also accomplish the inventive intent in this application. It should be understood that the drawings are not drawn to scale.

[0016] in:

[0017] Figure 1 is a schematic cross-sectional view of an initial state of a blocking device according to some embodiments of the present application;

[0018] Figure 2 yes Figure 1 a right side view of the middle fastener;

[0019] Figure 3 yes Figure 1 Schematic diagram of the blocking state of the middle blocking device;

[0020] Figure 4 is a schematic cross-sectional view of an initial state of a closure device with a stent according to some embodiments of the present application;

[0021] Figure 5 is a three-dimensional schematic diagram of a bracket according to some embodiments of the present application;

[0022] Figure 6 yes Figure 5 A right side cross-sectional schematic diagram of the middle bracket;

[0023] Figure 7 yes Figure 4 Schematic diagram of the blocking state of the middle blocking device. DETAILED DESCRIPTION

[0024] The following description provides specific application scenarios and requirements of the present application, with the purpose of enabling those skilled in the art to make and use the content in the present application. It will be apparent to those skilled in the art that various local modifications to the disclosed embodiments are apparent, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the present application. Therefore, the present application is not limited to the embodiments shown, but to the widest scope consistent with the claims.

[0025] The embodiment of the present application provides a plugging device for plugging a pipeline, comprising: a plugging member and a first adjusting member and a second adjusting member respectively fixedly arranged at two ends of the plugging member, the first adjusting member having a first threaded hole penetrating the first adjusting member, the second adjusting member having a second threaded hole penetrating the second adjusting member, the plugging member having a first hole penetrating the plugging member, the center lines of the first threaded hole, the second threaded hole and the first hole being collinear, the plugging member being made of an elastic material and being arranged in the pipeline; a connecting member, the connecting member comprising a first part and a second part connected to each other, the surface of the first part having a first thread adapted to the first threaded hole, the surface of the second part having a second thread adapted to the second threaded hole, the first thread and the second thread having different rotation directions, the first part penetrating the first threaded hole, and the second part penetrating the second threaded hole; a fastener connected to the connecting member, the fastener being arranged outside the pipeline, the fastener being used to drive the connecting member to rotate so as to tighten or loosen the plugging member.

[0026] The technical solution of the present invention is described in detail below in conjunction with the embodiments and drawings.

[0027] Figure 1It is a cross-sectional schematic diagram of the plugging device shown in some embodiments of the present application. The plugging device 100 includes: a plugging member 11, a connecting member 12 and a fastener 13. A first adjusting member 111 and a second adjusting member 112 are fixedly arranged at both ends of the plugging member 11. Among them, the first adjusting member 111, the second adjusting member 112 and the plugging member 11 are integrally formed. The first adjusting member 111 has a first threaded hole (not shown) passing through the first adjusting member 111, the second adjusting member 112 has a second threaded hole (not shown) passing through the second adjusting member 112, and the plugging member 11 has a first hole (not shown) passing through the plugging member 11, and the center lines of the first threaded hole, the second threaded hole and the first hole are collinear. The plugging member 11 is made of elastic material and is arranged in the pipeline 1 when in use. The connector 12 includes a first part 121 and a second part 122 connected to each other. The surface of the first part 121 has a first thread adapted to the first threaded hole, and the surface of the second part 122 has a second thread adapted to the second threaded hole, wherein the first thread and the second thread rotate in opposite directions, the first part 121 passes through the first threaded hole, and the second part 122 passes through the second threaded hole. The fastener 13 is arranged outside the pipeline 1, and the fastener 13 is connected to the connector 12. The fastener 13 drives the connector 12 to rotate, and drives the first adjustment member 111 and the second adjustment member 112 to move in the opposite direction to compress or loosen the plugging member 11. Specifically, the thread is divided into two types: left-handed thread and right-handed thread. When the connector 12 is placed vertically along the axis, the left end of the thread line of the first thread of the first part 121 is higher than the right end, which is a left-handed thread. The right end of the second thread of the second part 122 is higher than the left end, which is a right-handed thread. The left-handed thread is screwed in when rotating counterclockwise, and the right-handed thread is screwed in when rotating clockwise. Therefore, when the fastener 13 is rotated clockwise, the first adjusting member 111 driven by the first part 121 and the second adjusting member 112 driven by the second part 122 move toward each other, which can compress the plugging member 11. When the fastener 13 is rotated counterclockwise, the first adjusting member 111 driven by the first part 121 and the second adjusting member 112 driven by the second part 122 move in opposite directions, which can loosen the plugging member 11. The plugging device 100 of the present application can be adapted to pipes of different diameters, and the length of the plugging device 100 is not limited and can be designed according to the length of the pipe to be plugged.

[0028] See also Figure 2 and Figure 3 , Figure 2 yes Figure 1The right side view of the fastener 13 in the figure shows that in some embodiments, the top of the fastener 13 has a hexagonal recessed portion, which can be inserted into a hexagonal wrench (not shown, it is a prior art and will not be described here) to drive the fastener 13 to rotate, and the fastener 13 further drives the connection member 12 to rotate. When it is necessary to block the pipeline 1, the first part 121 of the connection member 12 is screwed with a hexagonal wrench and the first adjustment member 111 is driven to move toward the second adjustment member 112, and the second part 122 drives the second adjustment member 112 to move toward the first adjustment member 111, so as to compress the plugging member 11 to expand it and play the role of blocking the pipeline 11. On the contrary, the hexagonal wrench is used to screw the connection member 12 in the opposite direction to loosen the plugging member 11 and no longer block the pipeline 11.

[0029] In some embodiments, the plugging member 11 is made of solid rubber material, and the first adjusting member 111 and the second adjusting member 112 are made of metal material. The first adjusting member 111 and the second adjusting member 112 are made of metal material with corrosion resistance, good toughness and ductility, such as SUS304 stainless steel. The plugging member 11 is made of rubber material with corrosion resistance, high hardness, elastic recovery after deformation, and anti-static properties, such as nitrile rubber. In some embodiments, D MAX =D g +10mm, where D g is the diameter of the plugging member 11 in the initial state, D MAX is the maximum diameter of the plugging member 11 after being squeezed. g =25mm, D MAX =35mm, that is, the maximum inner diameter of the pipe that can be blocked by the rubber sealing piece 11 and the minimum inner diameter of the pipe that can be blocked differ by 10mm (an increase of 40%), so the sealing piece 11 can be used to block a large span of pipe apertures.

[0030] like Figure 4 As shown, in some embodiments, the plugging device 100 also includes a bracket 14, which is arranged outside the pipe 1 and is used to clamp the pipe 1. The bracket 14 includes a clamp 141, a base 142 and a pull rod 143. The clamp 141 and the base 142 are connected by the pull rod 143. A second hole 1421 is set in the center of the base 142. The fastener 13 and the plugging member 11 are respectively located on both sides of the base 142, and the connecting member 12 passes through the plugging member 11 through the second hole. The bracket 14 needs to be suitable for the diameter of the pipe 1. In some embodiments, the bracket 14 is made of metal material, and the bracket 14 passes through the base 142 and the clamp 141, and threads are set on the outside of the base 142 and the clamp 141 through both ends (not shown), so as to install bolts to fasten the bracket 14 respectively (this is a prior art and will not be repeated here).

[0031] like Figure 5As shown, in some embodiments, the clamp 141 and the base 142 are arranged in parallel. The pipe 1 is clamped by the clamp 141, and the base 142 and the clamp 141 are parallel, so that the pipe 1 can be clamped better.

[0032] like Figure 6 As shown, in some embodiments, a fixing block 1411 is fixedly provided at the first end of the clamp 141, and a third threaded hole (not shown) is provided inside the fixing block 1412. The inner diameter of the clamp 141 is adjusted by adapting the third threaded hole with a bolt 1413. The diameter of the clamp 141 is adjusted by the bolt 1413, and rotating the bolt 1413 can drive the diameter of the clamp to change. There are three movable components 1412 on the clamp 141 that can slide, and a fastening block 1412 is also provided and fixed on the clamp 141 to prevent the clamp from sliding so as to achieve force on the pipeline 1. The clamp 141 is fastened by the bolt 1413, and the other end of the clamp 141 passes through the hole in the fastening block 1411. The clamp 141 is driven to become larger or smaller through the threaded adaptation of the threaded hole and the bolt (not shown).

[0033] In some embodiments, a plurality of movable components 1412 are provided on the clamp 141, the base 142 is provided with a first pull rod hole 1422 penetrating the base 142, the movable component 1412 is provided with a second pull rod hole 1415 penetrating the movable component 1412, and the first pull rod hole 1422 and the second pull rod hole 1415 are used to install the pull rod 143.

[0034] In some embodiments, the first rod hole 1422 of the base 142 is a slide groove, and the number of the slide grooves corresponds to the number of the brackets 143, which is used to adjust the brackets 14 to be parallel to the pipeline 1. In order to ensure that the rod 143 is parallel to the pipeline 1, if the clamp 141 is adjusted to reduce the diameter, the rod 143 needs to slide down along the slide groove 1421 so that the rod 143 remains parallel and clamps the pipeline 1. The clamp 141 can be extended and retracted to fit different pipe diameters, and the slide groove is also adjusted synchronously with it to make the rod 143 parallel to the pipeline 1, because when the rod 143 is parallel to the pipeline 1 (that is, the rod 143 is perpendicular to the clamp 141 and the base 142), it is most conducive for the rod 143 to support the clamp 141 and the base 142.

[0035] In some embodiments, the fixed block 1411 is installed at one end of the clamp 141 and the movable component 1412 is installed at one end of the clamp 141 respectively facing the blocking piece 11. The shape of the side facing the blocking piece 11 is adapted to the pipe 1 and is used to clamp the pipe 1 together with the movable component 1412.

[0036] In some embodiments, the fixed block 1411 and the movable assembly 1412 are respectively provided with anti-slip members 1414 at one end facing the plugging member 11. The fixed block 1411 and the movable assembly 1412 are used to clamp the end of the pipe 1 and are commonly provided with anti-slip members 1414, which can better prevent the pipe 1 from moving when plugging the pipe 1.

[0037] In some embodiments, third holes 1423 are symmetrically arranged on both sides of the second hole of the base 142, and fourth holes (not shown) are correspondingly arranged on both sides of the first threaded hole of the first adjusting member. The third hole 1423 and the fourth hole are used to pass the metal rod 15 to prevent the first adjusting member 111 and the second adjusting member 112 from rotating together with the connecting member 12. The metal rod 15 is detachable, and two metal rod mounting holes (not shown) are arranged on the side of the first adjusting member 111 facing the base 142, and two third holes 1423 penetrating the base 142 are arranged at the positions corresponding to the two metal rod mounting holes of the base 142, and the metal rod 15 is installed in the two metal rod mounting holes through the third holes 1423. The metal rod 15 is replaceable, and the length of the metal rod 15 is set according to the length of the pipe 1. The metal rod 15 is rotatably fixed on the two metal rod mounting holes of the first adjusting member 111 to prevent the first adjusting member 111 and the second adjusting member 112 from rotating.

[0038] like Figure 7 As shown, combined with Figure 5 and Figure 6 , the shape of the movable component 1412 facing the plugging member 11 is adapted to the pipe 1 and is used to clamp the pipe 1. The clamp 141 is provided with a movable component 1412 with three fixed pull rods 143, and an anti-slip member 1414 is attached to the inner side of the movable component 1412. The material requirements for the anti-slip member 1414 are: large friction coefficient and corrosion resistance. The base 142 is provided with a circular hole 1421 to adapt to plugging devices 100 of different diameters. By setting four slide grooves, it is ensured that the pull rod 143 is parallel to and clamped with the blocked pipe 1. The plugging member 11 and the first adjusting member 111 and the second adjusting member 112 of the metal on both sides are an integral structure cast together. A hole is left in the middle of the plugging member 11, and the plugging member passes through the plugging member 11 and the first adjusting member 111 and the second adjusting member 112 of the metal on both sides from the outside of the base 12. The second part 122 of the connector is smaller in diameter than the first part 121, which is convenient for installation into the plugging member 11. The surfaces of the first part 121 and the second part 122 of the connecting piece have threads in different directions. By rotating the entire connecting piece 12, the first adjusting piece 111 and the second adjusting piece 112 on both sides of the sealing piece 11 are moved toward the middle through the threads on the surface of the connecting piece 12 to extrude the rubber sealing piece 11, so that the sealing piece 11 expands, the diameter width is increased, and the pipeline 1 is sealed.

[0039] The beneficial effects that may be brought by the embodiment of the present application include but are not limited to: the first adjusting member, the second adjusting member and the rubber plugging member are cast as one, and the connecting member passes through the middle, and the first adjusting member, the second adjusting member and the rubber plugging member are in a common center line position through the connecting member, and the fastener is connected to the connecting member, rotated to the initial position and placed in the pipeline. The bracket can be pre-installed on the outside of the pipeline, or the bracket can be installed after the plugging device is installed in the pipeline. After the fastener and the connecting member are assembled together, they are rotated with a tool, and two opposite forces drive the first adjusting member and the second adjusting member, and further drive the first adjusting member and the second adjusting member to squeeze the rubber plugging member to expand until the pipeline is completely blocked. In order to prevent the plugging device from moving outward, the bracket needs to be tightened. The clamp can be tightened first, and after tightening it to clamp the pipeline, the pull rod can be slid through the slide groove of the base to a state parallel to the pipeline, and the pull rod nut is tightened to complete the entire plugging process. The embodiment of the present application is applicable to the pipeline with a large aperture span, realizing "one cap and multiple plugging", that is, one plugging device can be suitable for pipelines with multiple apertures, saving costs and material storage. It is suitable for pipeline cutting, pipeline rupture, and internal plugging of pipelines, and can realize emergency plugging of pipelines when there is no matching plugger. It can also increase the reliability of plugging through the degree of rubber deformation.

[0040] It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced may be any one or a combination of the above, or any other beneficial effects that may be obtained.

[0041] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this application. Such modifications, improvements and corrections are suggested in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this application.

[0042] It should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "fix" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a rotating connection or a sliding connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood in combination with specific circumstances.

[0043] In addition, when terms such as "first", "second", and "third" are used in the specification of this application to describe various features, these terms are only used to distinguish these features and cannot be understood as indicating or implying the relationship between the features, the relative importance, or implicitly indicating the number of features indicated.

[0044] In addition, the present specification describes exemplary embodiments by reference to idealized exemplary cross-sectional views and / or plan views and / or stereograms. Therefore, differences from the illustrated shapes due to, for example, manufacturing techniques and / or tolerances are foreseeable. Therefore, the exemplary embodiments should not be interpreted as being limited to the shapes of the regions shown herein, but should include deviations in shapes caused by, for example, manufacturing. Therefore, the regions shown in the figures are schematic in nature, and their shapes are not intended to illustrate the actual shapes of the regions of the device nor to limit the scope of the exemplary embodiments.

[0045] At the same time, the present application uses specific words to describe the embodiments of this specification. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in the present application does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0046] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more embodiments of the invention, in the above description of the embodiments of this application, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0047] Finally, it should be understood that the embodiments in this application are only used to illustrate the principles of the embodiments of this application. Other variations may also fall within the scope of this application. Therefore, as an example and not a limitation, the alternative configurations of the embodiments of this application may be considered to be consistent with the teachings of this application. Accordingly, the embodiments of this application are not limited to the embodiments explicitly introduced and described in this application.

Claims

1. A plugging device for plugging a pipeline, characterized in that: include: A plugging member and a first adjusting member and a second adjusting member respectively fixedly arranged at two ends of the plugging member, the first adjusting member having a first threaded hole penetrating the first adjusting member, the second adjusting member having a second threaded hole penetrating the second adjusting member, the plugging member having a first hole penetrating the plugging member, the center lines of the first threaded hole, the second threaded hole and the first hole being collinear, the plugging member being made of elastic material and being arranged in the pipeline; A connecting member, the connecting member comprises a first part and a second part connected to each other, the first part has a first thread matched with a first threaded hole on a surface, the second part has a second thread matched with a second threaded hole on a surface, the first thread and the second thread rotate in opposite directions, the first part passes through the first threaded hole, and the second part passes through the second threaded hole; A fastener is connected to the connecting piece, and the fastener is arranged outside the pipeline. The fastener is used to drive the connecting piece to rotate so as to tighten or loosen the blocking piece.

2. The blocking device according to claim 1, characterized in that: It also includes a bracket, which is arranged outside the pipe and is used to clamp the pipe. The bracket includes a clamp, a base and a pull rod. The clamp and the base are connected by the pull rod. A second hole is set in the center of the base. The fastener and the sealing member are respectively located on both sides of the base. The connecting member passes through the second hole and penetrates the sealing member.

3. The blocking device according to claim 2, characterized in that: The clamp and the base are arranged in parallel.

4. The blocking device according to claim 3, characterized in that: A fixing block is fixedly arranged at the first end of the clamp, a third threaded hole is arranged inside the fixing block, and the inner diameter of the clamp is adjusted by fitting a bolt to the third threaded hole.

5. The blocking device according to claim 4, characterized in that: The clamp is provided with a plurality of movable components, the base is provided with a first pull rod hole penetrating the base, the movable component is provided with a second pull rod hole penetrating the movable component, the first pull rod hole and the second pull rod hole are used for installing the pull rod, the first pull rod hole of the base is a slide groove, the number of the slide grooves corresponds to the bracket, and is used to adjust the bracket to be parallel to the pipe.

6. The blocking device according to claim 5, characterized in that: The fixing block is mounted on one end of the clamp and the movable assembly is mounted on one end of the clamp, and the shapes thereof are respectively adapted to the pipes for clamping the pipes together.

7. The blocking device according to claim 5, characterized in that: The fixing block and the movable assembly are respectively provided with anti-slip parts at one end facing the blocking member.

8. The blocking device according to claim 7, characterized in that: The third holes are symmetrically arranged on both sides of the second hole of the base, and the fourth holes are correspondingly arranged on both sides of the first threaded hole of the first adjusting member, and the third hole and the fourth hole are used to pass a metal rod to prevent the blocking member from rotating together with the connecting member.

9. The blocking device according to claim 1, characterized in that: The blocking piece is made of solid rubber material.

10. The blocking device according to claim 1, characterized in that: The first adjusting member and the second adjusting member are made of metal material.