Pipeline plugging device for urban gas engineering

Abstract

The utility model relates to the technical field of gas engineering, in particular to a pipeline plugging device for urban gas engineering. The plugging mechanism comprises four moving rods which are connected to one end of the circular plate in a sliding mode, the other ends of the moving rods are fixedly connected with arc-shaped plates, one end of the circular plate is rotationally connected with a bidirectional lead screw, and the bidirectional lead screw is provided with a clamping groove; according to the blocking mechanism, under the action of the two moving plates and the two corresponding connecting rods on the arc-shaped plates, the arc-shaped plates can be pushed to synchronously move and abut against the inner wall of the pipeline by rotating the two-way lead screw, operation is easier and more convenient, the four arc-shaped plates abut against the inner wall of the pipeline, rigid supporting is achieved, and the blocking effect is better. The stability of the device in the pipeline plugging process is improved, and after the circular plate and the pipeline are fixed, the sealing ring is pushed to abut against and be attached to one end of the pipeline through interaction of the bolt and the movable ring, and the plugging effect of the device on the pipeline is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gas engineering technical field especially relates to a pipeline plugging device for town gas engineering. BACKGROUND

[0002] Gas engineering is the gas resource such as natural gas, liquefied petroleum gas, through pipeline, equipment and other facilities to deliver gas to user end, provides gas supply service for user's engineering, often needs to use pipeline plugging device when installing gas engineering, to close the pipeline that has not been installed, to avoid the inside of pipeline entering dust and sundries, to facilitate the connection extension of pipeline.

[0003] Through the search of Chinese patent "a pipeline plugging device for gas engineering", the announcement number is "CN221221896U", the patent is through pressing the arc-shaped support plate close to the direction of the clamping block, the elastic telescopic rod contracts, then the arc-shaped support plate and the clamping block are clamped into the inner wall of the pipeline, then under the action of the elastic force of the elastic telescopic rod, the arc-shaped support plate contacts the inner wall of the pipeline and supports the inner wall of the pipeline, then the connecting block is pushed to make the connecting block contact the pipeline, and then the pipeline is plugged, through the cooperation of the fastening screw and the arc-shaped clamping plate, the installation and disassembly of the device can be quickly realized, the installation and disassembly efficiency is improved, the physical labor of the operator is reduced, and under the cooperation of the elastic telescopic rod and the arc-shaped support plate, the pipeline of different diameters can be plugged, the applicability of the device is improved, and convenience is brought to use.

[0004] Although the pipeline can be plugged in the above application, the staff needs to press multiple arc-shaped support plates at the same time when plugging, the operation is relatively inconvenient, and when the arc-shaped support plate is supported by the spring under the action of the elastic telescopic rod, the stability of the support is poor, which can affect the plugging effect of the connecting block on the pipeline.

[0005] Therefore, a pipeline plugging device for town gas engineering is proposed to solve the above problems. Utility model content

[0006] The utility model aims at providing a pipeline plugging device for town gas engineering to solve the above problems, which improves the problem that the staff needs to press multiple arc-shaped support plates at the same time, the operation is relatively inconvenient, and when the arc-shaped support plate is supported by the spring under the action of the elastic telescopic rod, the stability of the support is poor, which can affect the plugging effect of the connecting block on the pipeline.

[0007] The utility model discloses a pipeline plugging device for town gas engineering through the following technical scheme to realize the above -mentioned purpose, including: round board, plugging mechanism, the plugging mechanism includes four mobile rods of sliding connection in the one end of round board, the other end fixedly connected with the arc plate of mobile rod, the one end of round board is rotatably connected with the two -way screw, the surface screw thread connection of two -way screw has the moving plate of two, the inner surface of arc plate is hinged with the connecting rod of two, the opposite end of two connecting rods is respectively hinged with two moving plates, the inner wall sliding connection of round board has the moving ring, the other end fixedly connected with the sealing ring of moving ring, the inner wall screw thread connection of round board has the bolt, and one end of bolt is rotatably connected with the other end of moving ring.

[0008] Preferably, the one end of the round plate is fixedly connected with two mounting plates, the inner wall of the mounting plate is screw connected with a threaded rod, one end of the threaded rod penetrates the mounting plate and is rotatably connected with a fixed plate, and the two fixed plates are circularly symmetric with respect to the center of the round plate. It is beneficial to strengthen the stability of the round plate and the pipeline during installation.

[0009] Preferably, the one end of the round plate is fixedly connected with a round rod, and the inner wall of the two moving plates is slidingly connected with the surface of the round rod. It is beneficial to limit the movement path of the two moving plates and ensure the stability of the moving plate during horizontal movement.

[0010] Preferably, one end of the two-way screw penetrates the round plate and is fixedly connected with a knob, and the surface of the knob is fixedly connected with a plurality of protrusions. It is beneficial to enable the staff to better rotate the two-way screw and increase the friction force when rotating the knob under the action of the protrusions.

[0011] Preferably, the other end of the round plate is provided with a circular groove, and the knob is arranged in the circular groove. It avoids the knob from being accidentally touched during use of the device and enhances the stability of the device during use.

[0012] Preferably, the one end of the round plate is provided with four sliding grooves, and the surface of the moving rod is slidingly connected with the inner wall of the sliding groove. It is beneficial to limit the movement path of the arc plate and ensure the stability of the arc plate during movement.

[0013] Preferably, a plurality of grooves are arranged on the outer surface of the arc plate. It is beneficial to increase the friction force between the arc plate and the inner wall of the pipeline.

[0014] The utility model discloses the beneficial effect is:

[0015] 1. The sealing mechanism in the above-mentioned sealing mechanism is under the action of the corresponding two connecting rods on the two moving plates and the arc-shaped plates, and is driven by rotating the bidirectional screw rod, which is beneficial to synchronously moving the plurality of arc-shaped plates and abutting against the inner wall of the pipeline, is more convenient to operate, and after the four arc-shaped plates abut against the inner wall of the pipeline, the stability of the device in the process of sealing the pipeline is increased, and after the circular plate and the pipeline are fixed, the sealing ring is driven to abut against and fit the one end of the pipeline through the interaction of the bolt and the moving ring, which is beneficial to enhancing the sealing effect of the device on the pipeline.

[0016] 2. The knob is arranged in the circular groove, so that the knob is not touched by mistake during use of the device, and the stability of the device during use is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole schematic view of the pipeline sealing device for urban gas engineering.

[0018] Figure 2 It is a sealing mechanism schematic view of the pipeline sealing device for urban gas engineering.

[0019] Figure 3 It is an explosion view of the moving rod, the bidirectional screw rod and the circular plate of the pipeline sealing device for urban gas engineering.

[0020] Figure 4 It is a connecting schematic view of the connecting rod, the arc-shaped plate and the moving plate of the pipeline sealing device for urban gas engineering.

[0021] Figure 5 It is an installation schematic view of the pipeline sealing device for urban gas engineering.

[0022] In the figure: 100, circular plate; 110, circular rod; 120, circular groove; 130, sliding groove; 200, sealing mechanism; 210, moving rod; 220, arc-shaped plate; 230, bidirectional screw rod; 231, knob; 240, moving plate; 250, connecting rod; 260, moving ring; 270, sealing ring; 280, bolt; 290, mounting plate; 291, threaded rod; 292, fixed plate. DETAILED DESCRIPTION

[0023] 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.

[0024] In a specific implementation, as shown in the accompanying drawings: Figures 1-5 The urban gas pipeline plugging device comprises a circular plate 100, a plugging mechanism 200, the plugging mechanism 200 comprising four moving rods 210 slidably connected to one end of the circular plate 100, the other end of the moving rod 210 being fixedly connected with an arc-shaped plate 220, one end of the circular plate 100 being rotatably connected with a bidirectional screw rod 230, the surface of the bidirectional screw rod 230 being threadedly connected with two moving plates 240, the inner surface of the arc-shaped plate 220 being hingedly connected with two connecting rods 250, the other ends of the two connecting rods 250 being respectively hingedly connected with the opposite ends of the two moving plates 240, the inner wall of the circular plate 100 being slidably connected with a moving ring 260, the other end of the moving ring 260 being fixedly connected with a sealing ring 270, the inner wall of the circular plate 100 being threadedly connected with a bolt 280, one end of the bolt 280 being rotatably connected with the other end of the moving ring 260.

[0025] The angle between the center points of the two adjacent arc-shaped plates 220 is ninety degrees, so that the four arc-shaped plates 220 form a cross distribution, and the distance between the center points of the four arc-shaped plates 220 and the center of the bidirectional screw rod 230 is the same in the initial state of the device.

[0026] The threads of the two moving plates 240 and the bidirectional screw rod 230 are opposite, so that when the bidirectional screw rod 230 is rotated, the two moving plates 240 are driven to move synchronously and in opposite directions, and the sealing ring 270 is a rubber component, and the other end of the sealing ring 270 and one end of the circular plate 100 are located on the same vertical plane in the initial state of the device.

[0027] As shown in the accompanying drawings: Figure 2 One end of the circular plate 100 is fixedly connected with two mounting plates 290, the inner wall of the mounting plate 290 is threadedly connected with a threaded rod 291, one end of the threaded rod 291 penetrates through the mounting plate 290 and is rotatably connected with a fixed plate 292, and the two fixed plates 292 are centrally symmetric with respect to the circular plate 100.

[0028] The surface of the fixed plate 292 is curved into an arc shape, the inner surface of the fixed plate 292 is provided with a plurality of evenly distributed grooves, and the outer surface of the fixed plate 292 is fixedly connected with a limiting rod, the other end of the limiting rod penetrates out of the mounting plate 290, and the surface of the limiting rod is slidably connected with the inner wall of the mounting plate 290.

[0029] As shown in the accompanying drawings: Figure 3 One end of the circular plate 100 is fixedly connected with a circular rod 110, and the inner wall of the two moving plates 240 is slidably connected with the surface of the circular rod 110. When the two moving plates 240 are driven to move, the two moving plates 240 will move along the path of the circular rod 110.

[0030] As shown in the accompanying drawings: Figure 4As shown, one end of the bidirectional screw rod 230 penetrates the circular plate 100 and is fixedly connected with the knob 231, and the surface of the knob 231 is fixedly connected with a plurality of protrusions.

[0031] As shown in the figure, Figure 3 As shown, the other end of the circular plate 100 is provided with a circular groove 120, and the knob 231 is arranged in the circular groove 120. Avoiding the knob 231 being touched by mistake during use of the device.

[0032] As shown in the figure, Figure 3 As shown, one end of the circular plate 100 is provided with four sliding grooves 130, and the surface of the moving rod 210 is slidingly connected with the inner wall of the sliding groove 130. When the driving connecting rod 250 pushes the arc-shaped plate 220 to move, the arc-shaped plate 220 will drive the moving rod 210 to move in the sliding groove 130,

[0033] As shown in the figure, Figure 4 As shown, the outer surface of the arc-shaped plate 220 is provided with a plurality of recesses arranged in rows. The plurality of recesses are arranged in rows along the horizontal direction.

[0034] In use, the plurality of arc-shaped plates 220 enter the pipeline, and one end of the circular plate 100 is attached to one end of the pipeline and kept stable. At this time, the worker drives the bidirectional screw rod 230 to rotate by rotating the knob 231, drives the two moving plates 240 to move simultaneously and approach each other, and gradually reduces the included angle between the two connecting rods 250 on the arc-shaped plate 220 in the process of approaching each other, so that the two connecting rods 250 on the plurality of arc-shaped plates 220 push the corresponding arc-shaped plates 220 to move away from the bidirectional screw rod 230. When the bidirectional screw rod 230 cannot continue to rotate, the outer surfaces of the four arc-shaped plates 220 are in abutment with the inner wall of the pipeline. At this time, the worker rotates the two threaded rods 291 respectively to push the corresponding fixed plates 292 to move, so that the two fixed plates 292 are in abutment with the surface of the pipeline. After this operation, the bolt 280 is rotated to push the moving ring 260 to move towards the pipeline, so that the moving ring 260 drives the sealing ring 270 to move towards the pipeline at the same time, and the other end of the sealing ring 270 is in abutment with one end of the pipeline. That is, the sealing operation of the pipeline is completed.

[0035] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pipe plugging device for town gas engineering, characterized in that, Include: Round plate (100); Blocking mechanism (200), the blocking mechanism (200) includes four slidingly connected to the moving rod (210) of one end of the round plate (100), the other end of the moving rod (210) is fixedly connected with the arc plate (220), one end of the round plate (100) is rotatably connected with the bidirectional screw (230), the surface of the bidirectional screw (230) is threadedly connected with two moving plates (240), the inner surface of the arc plate (220) is hingedly connected with two connecting rods (250), the other end of the two connecting rods (250) is respectively hingedly connected with the opposite end of the two moving plates (240), the inner wall of the round plate (100) is slidingly connected with the moving ring (260), the other end of the moving ring (260) is fixedly connected with the sealing ring (270), the inner wall of the round plate (100) is threadedly connected with the bolt (280), one end of the bolt (280) is rotatably connected with the other end of the moving ring (260).

2. The pipe plugging device for town gas engineering according to claim 1, characterized in that: One end of the round plate (100) is fixedly connected with two mounting plates (290), the inner wall of the mounting plate (290) is threadedly connected with the threaded rod (291), one end of the threaded rod (291) penetrates the mounting plate (290) and is rotatably connected with the fixed plate (292), the two fixed plates (292) are centrally symmetric with respect to the round plate (100).

3. The pipe plugging device for town gas engineering according to claim 1, characterized in that: One end of the round plate (100) is fixedly connected with the round rod (110), the inner wall of the two moving plates (240) is slidingly connected with the surface of the round rod (110).

4. The pipe plugging device for town gas engineering according to claim 1, characterized in that: One end of the bidirectional screw (230) penetrates the round plate (100) and is fixedly connected with the knob (231), the surface of the knob (231) is fixedly connected with a plurality of protrusions.

5. The pipe plugging device for town gas engineering according to claim 4, characterized in that: The other end of the round plate (100) is provided with a circular groove (120), and the knob (231) is arranged in the circular groove (120).

6. The pipe plugging device for town gas engineering according to claim 1, characterized in that: One end of the round plate (100) is provided with four sliding grooves (130), and the surface of the moving rod (210) is slidingly connected with the inner wall of the sliding groove (130).

7. The pipe plugging device for town gas engineering according to claim 1, characterized in that: A plurality of grooves are arranged on the outer surface of the arc plate (220).

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