Pipeline plugging device for municipal fuel gas engineering

Abstract

The utility model relates to the technical field of pipeline plugging devices, in particular to a pipeline plugging device for municipal fuel gas engineering, which comprises a plugging cover, an inflation sealing gasket is fixedly mounted on one side of the plugging cover, an air inlet pipe is fixedly mounted on one side, far away from the inflation sealing gasket, of the plugging cover, and the air inlet pipe is communicated with the inflation sealing gasket. An air pump is arranged on the air inlet pipe, the inflation sealing gasket is arranged to be annular, a box body is fixedly installed on the portion, located in the middle of the inflation sealing gasket, of the plugging cover, symmetrical flitch plates are arranged on the side edge of the box body, the flitch plates are arranged to be arc-shaped, and driving pieces used for driving the flitch plates to be close to each other and away from each other are arranged on the plugging cover and the box body. According to the pipeline plugging device for the municipal fuel gas engineering, the plugging effect on a pipeline can be improved, the plugging stability can be effectively improved, and the pipeline plugging device is suitable for pipelines with different pipe diameters and is high in safety, simple in overall structure, convenient to operate and high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pipeline plugging device technical field, especially relate to a pipeline plugging device for municipal gas engineering. BACKGROUND

[0002] The pipeline plugging device for municipal gas engineering is applied to municipal gas engineering, and is used for effectively blocking the gas flow in the pipeline under conditions such as maintenance, reconstruction and detection, preventing gas leakage, and guaranteeing the safety of operation and the safety of the surrounding environment.

[0003] When the existing plugging device is affected by factors such as gas flow and pressure fluctuation in the pipeline, displacement or loosening phenomenon is easy to occur, the stability of plugging cannot be ensured, and the range of applicable pipe diameters is relatively narrow, that is, one device can only adapt to a specific pipe diameter, and in the face of complex and diverse municipal gas pipeline networks, different specifications of plugging devices need to be frequently replaced, which greatly reduces the work efficiency, and needs to be improved, therefore, the pipeline plugging device for municipal gas engineering is proposed. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a pipeline plugging device for municipal gas engineering to solve the problems in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pipeline plugging device for municipal gas engineering, comprising a plugging cover, a gas sealing pad is fixedly installed on one side of the plugging cover, an air inlet pipe is fixedly installed on the side of the plugging cover away from the gas sealing pad, the air inlet pipe is communicated with the gas sealing pad, a gas pump is arranged on the air inlet pipe, the gas sealing pad is arranged in an annular shape, a box body is fixedly installed in the middle of the gas sealing pad, the side of the box body is provided with symmetrically arranged sticking plates, the sticking plates are arranged in an arc shape, and driving members for driving the sticking plates to move close to each other and move away from each other are arranged on the plugging cover and the box body.

[0006] As a further description of the above-mentioned scheme: through the cooperation between the plugging cover, the gas sealing pad, the air inlet pipe, the gas pump, the box body, the sticking plate and the driving member, the plugging effect on the pipeline can be improved, the stability of plugging can be effectively improved, the device is suitable for pipelines with different diameters, has high safety, the overall structure of the device is simple, the operation is convenient, and the device has high practicability.

[0007] Preferably, the driving member comprises a knob rotatably arranged on the side of the plugging cover, a worm and a worm wheel rotatably arranged in the box body, a lead screw fixedly installed on the two sides of the worm wheel, and a movable rod slidably arranged on the box body.

[0008] As a further description of the above-mentioned scheme: the elements in the driving member are described.

[0009] Preferably, the knob shaft end is fixedly installed with the worm shaft end, the worm is meshed with the worm wheel for transmission, the lead screw is threadedly connected to the movable rod, and the mounting plate is fixedly installed to the outer end of the movable rod.

[0010] As a further description of the above scheme: the positional relationships between the components within the drive unit are described.

[0011] Preferably, a damping mechanism is provided between the knob and the sealing cap.

[0012] As a further description of the above solution: a damping mechanism is provided between the knob and the sealing cap, which can improve the stability of the plate and thus improve the sealing stability.

[0013] Preferably, the outer wall of the panel is covered with a pad, and the pad is made of rubber.

[0014] As a further description of the above solution: the outer wall of the plate is covered with a rubber pad, which not only protects the inner wall of the pipe, but also further improves the stability of the sealing.

[0015] Preferably, a controller is provided on the side of the sealing cap away from the inflatable sealing pad, and the controller is electrically connected to the air pump.

[0016] As a further description of the above solution: a controller is set up to automatically control the inflation and deflation of the air pump.

[0017] In summary, compared with the prior art, the beneficial effects of this utility model are: by setting up a sealing cap, an inflatable sealing gasket, an air inlet pipe, an air pump, a box, a plate, and the coordinated operation of the driving components, it can not only improve the sealing effect on the pipeline, but also effectively improve the stability of the sealing. It is also suitable for pipelines of different diameters, has high safety, a simple overall structure, is easy to operate, and is highly practical. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a side view of the present invention.

[0020] Figure 3 This is a structural diagram of the inflatable sealing gasket, air inlet pipe, and air pump of this utility model;

[0021] Figure 4 This is a structural diagram of the present invention;

[0022] Figure 5 This is a structural diagram of the box body, the mounting plate, and the driving component of this utility model.

[0023] Legend:

[0024] 1, blocking cover; 2, inflatable sealing pad; 3, air inlet pipe; 4, air pump; 5, box body; 6, sticking plate; 7, driving piece; 71, knob; 72, worm; 73, worm gear; 74, screw rod; 75, movable rod. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] Please refer to Figures 1-5 The present application provides a technical solution:

[0027] A pipeline blocking device for municipal gas engineering, comprising a blocking cover 1, the blocking cover 1 is fixedly installed with an inflatable sealing pad 2 on one side, the blocking cover 1 is fixedly installed with an air inlet pipe 3 on the side away from the inflatable sealing pad 2, the air inlet pipe 3 is communicated with the inflatable sealing pad 2, the air inlet pipe 3 is provided with an air pump 4, the inflatable sealing pad 2 is arranged in a ring shape, the blocking cover 1 is fixedly installed with a box body 5 in the middle of the inflatable sealing pad 2, the box body 5 is provided with symmetrically arranged sticking plates 6 on the side edges, the sticking plates 6 are arranged in an arc shape, the blocking cover 1 and the box body 5 are provided with driving pieces 7 for driving the sticking plates 6 to move closer to each other and move away from each other, the driving pieces 7 comprise knobs 71 rotatably arranged on the side edges of the blocking cover 1, worm gears 72 and worm gears 73 rotatably arranged in the box body 5, screw rods 74 fixedly installed on both sides of the worm gears 73, and movable rods 75 slidably arranged on the box body 5, the knob 71 is fixedly installed with the worm gear 72 at the shaft end, the worm gear 72 is in meshing transmission connection with the worm gear 73, the screw rod 74 is in threaded connection with the movable rod 75 respectively, and the sticking plate 6 is fixedly installed with the movable rod 75 at the outer end.

[0028] When it is necessary to block the municipal gas pipeline, the inflatable sealing pad 2 on the side edge of the blocking cover 1 is attached to the end of the pipeline, after attachment, the inflatable sealing pad 2 preliminarily seals the pipe opening.

[0029] Then the operator rotates the knob 71 on the side of the blocking cover 1, the knob 71 rotates to drive the worm 72 to rotate in the box body 5, the worm 72 rotates to drive the mesh transmission connected worm gear 73 to rotate, the worm gear 73 rotates to drive the two groups of lead screws 74 to rotate at the same time, the two groups of lead screws 74 rotate at the same time to drive the movable rods 75 connected with them by threads to slide on the box body 5 away from each other, the movable rods 75 away from each other push the sticking plates 6 to stick to the inner wall of the pipeline, and the whole device is fixed on the end of the gas pipeline, this fixing method is not only suitable for pipelines with different diameters, but also can improve the stability of the blocking;

[0030] After the whole device is fixed, the air pump 4 on the inlet pipe 3 is started, the air pump 4 fills air into the inflatable sealing pad 2 to make it expand and wrap the end of the pipeline, thereby enhancing the sealing effect during pipeline blocking;

[0031] The pipeline blocking device for municipal gas engineering can not only improve the blocking effect of the pipeline, but also effectively improve the stability of the blocking, and is suitable for pipelines with different diameters, has high safety, simple overall structure, convenient operation and strong practicality.

[0032] The knob 71 and the blocking cover 1 are provided with damping;

[0033] The damping between the knob 71 and the blocking cover 1 can keep the current position of the knob 71 after rotation, and the knob 71 will not rotate randomly due to external force, so that when the position of the sticking plate 6 is adjusted by rotating the knob 71, the damping can ensure that the sticking plate 6 maintains at the position, thereby ensuring the stability of the contact state between the sticking plate 6 and the inner wall of the pipeline, and further ensuring the stability of the blocking.

[0034] The outer wall of the sticking plate 6 is paved with a pad, and the pad is made of rubber material;

[0035] The outer wall of the sticking plate 6 is paved with a pad made of rubber material, which can not only protect the inner wall of the pipeline, but also further improve the stability of the blocking.

[0036] A controller is arranged on the side of the blocking cover 1 away from the inflatable sealing pad 2, and the controller is electrically connected with the air pump 4;

[0037] The controller can automatically control the inflation and deflation of the air pump 4

[0038] Working principle:

[0039] When the municipal gas pipeline needs to be blocked, the inflatable sealing pad 2 on the side of the blocking cover 1 is attached to the end of the pipeline, and after attachment, the inflatable sealing pad 2 preliminarily seals the pipe opening;

[0040] Then the operator rotates the knob 71 on the side of the blocking cover 1, the knob 71 is rotated to drive the worm 72 to rotate in the box body 5, the worm 72 is rotated to drive the mesh transmission connected worm wheel 73 to rotate, the worm wheel 73 is rotated to drive the two groups of lead screws 74 to rotate at the same time, the two groups of lead screws 74 are rotated at the same time to drive the movable rods 75 connected with the threads to slide on the box body 5 away from each other, the movable rods 75 push the sticking plates 6 to stick to the inner wall of the pipeline, and the whole device is fixed at the end of the gas pipeline, and this fixing mode is not only suitable for pipelines with different diameters, but also can improve the stability of the blocking;

[0041] After the whole device is fixed, the air pump 4 on the inlet pipe 3 is started, the air pump 4 fills the inflatable sealing pad 2 with air, so that it expands to wrap the end of the pipeline and strengthen the sealing effect during pipeline blocking;

[0042] The pipeline blocking device for municipal gas engineering can not only improve the blocking effect of the pipeline, but also effectively improve the stability of the blocking, and is suitable for pipelines with different diameters, has high safety, simple overall structure, convenient operation and strong practicality;

[0043] Among them,

[0044] The knob 71 and the blocking cover 1 are provided with damping, so that the knob 71 can remain at the current position after rotation and will not be easily rotated at will due to external force, and when the position of the sticking plate 6 is adjusted by rotating the knob 71, the existence of the damping can ensure that the sticking plate 6 maintains at the position, ensuring the stability of the contact state between the sticking plate 6 and the inner wall of the pipeline, and further ensuring the stability of the blocking;

[0045] The outer wall of the sticking plate 6 is paved with a rubber pad, which can not only protect the inner wall of the pipeline, but also further improve the stability of the blocking.

[0046] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A pipe plugging device for municipal gas engineering, comprising a plugging cap (1), characterized in that The sealing cover (1) is fixedly installed on one side of the inflatable sealing pad (2), and the sealing cover (1) is fixedly installed on the side away from the inflatable sealing pad (2) of the air inlet pipe (3), the air inlet pipe (3) is communicated with the inflatable sealing pad (2), the air inlet pipe (3) is provided with the air pump (4), the inflatable sealing pad (2) is arranged in annular, the sealing cover (1) is fixedly installed in the middle of the inflatable sealing pad (2) The box body (5) is provided with symmetrically arranged sticking plates (6) on the side edge of the box body (5), the sticking plates (6) are arranged in arc shape, the sealing cover (1) and the box body (5) are provided with driving members (7) for driving the sticking plates (6) to move close to each other and move away from each other.

2. The pipe plugging device for a municipal gas engineering according to claim 1, characterized in that, The driving member (7) comprises a knob (71) rotatably arranged on the side edge of the sealing cover (1), a worm (72) and a worm wheel (73) rotatably arranged in the box body (5), a lead screw (74) fixedly installed on both sides of the worm wheel (73), and a movable rod (75) slidably arranged on the box body (5).

3. The pipe plugging device for a municipal gas engineering according to claim 2, characterized in that The shaft end of the knob (71) is fixedly installed with the shaft end of the worm (72), the worm (72) is in meshing transmission connection with the worm wheel (73), the lead screw (74) is respectively in threaded connection with the movable rod (75), and the sticking plate (6) is respectively fixedly installed with the outer end of the movable rod (75).

4. The pipe plugging device for a municipal gas engineering according to claim 2, characterized in that, The knob (71) and the sealing cover (1) are provided with damping.

5. The pipe plugging device for a municipal gas engineering according to claim 1, characterized in that, The outer wall of the sticking plate (6) is paved with a pad, and the pad is made of rubber material.

6. The pipe plugging device for a municipal gas engineering according to claim 1, characterized in that The sealing cover (1) is provided with a controller on the side away from the inflatable sealing pad (2), and the controller is electrically connected with the air pump (4).

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