Pipe orifice plugging device

Abstract

The invention relates to the technical field of pipeline installation engineering, in particular to a pipe orifice plugging device which comprises a cover plate, a threaded hole is formed in the middle of the cover plate, the cover plate is in threaded connection with a threaded rod, one end of the threaded rod is rotationally connected with a connecting plate, the connecting plate is hinged to a first supporting rod, and a second supporting rod is hinged to the end, away from the connecting plate, of the first supporting rod. The end, away from the first supporting rod, of the second supporting rod is hinged to the cover plate, the end, connected with the second supporting rod, of the cover plate is fixedly connected with a fixing sleeve, a round hole is formed in the middle of the fixing sleeve for the threaded rod to penetrate through, and the second supporting rod is hinged to the fixing sleeve.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline installation engineering, and in particular to a pipe orifice plugger. Background Art

[0002] In pipeline construction, it is inevitable that pipeline ends will be broken because of various obstacles such as roads, railways, rivers, optical cables, and crossings along the route. These pipelines are generally placed in an open-air environment for a long time. In the natural environment, due to weather, terrain, and human factors, they often cause various unpredictable problems such as water accumulation in the pipeline, silt, damage to the internal anti-corrosion layer, and small animals entering the pipeline. Therefore, the ends of the pipelines are generally blocked.

[0003] Pipeline plugging generally uses tarpaulins and colored strips to plug the pipe mouth. Steel plates are temporarily welded to plug the pipe mouth. When resuming construction, they need to be cut and removed, which damages the parent material on the one hand and increases the cost on the other. Using inflatable airbags to plug is a new way to plug the pipe mouth. It is simple to operate, but the airbags are often cut and punctured during use, and they need to be replaced frequently, which is costly. Therefore, a convenient and low-cost pipe mouth plugger is needed. Summary of the invention

[0004] In order to make pipeline sealing more convenient, the present application provides a pipe orifice plugger.

[0005] The above technical objectives of this application are achieved through the following technical solutions: The pipe orifice plugger includes a cover plate, a threaded hole is provided in the middle position of the cover plate, and the cover plate is threadedly connected to a threaded rod, one end of the threaded rod is rotatably connected to a connecting plate, the connecting plate is hinged to a first support rod, the first support rod is hinged to a second support rod at one end close to and away from the connecting plate, the second support rod is hinged to the cover plate at one end away from the first support rod, the cover plate is fixedly connected to one end of the second support rod with a fixing sleeve, a round hole is provided in the middle position of the fixing sleeve for the threaded rod to pass through, and the second support rod is hinged to the fixing sleeve.

[0006] By adopting the above scheme, when the pipe opening needs to be sealed, the threaded rod, the first support rod and the second support plate are placed into the pipe, the cover plate is covered on the pipe opening, and then the threaded rod is rotated to move the threaded rod toward the side of the cover plate away from the pipe, thereby driving the first support rod and the second support rod to move, thereby driving the connected end of the first support rod and the second support rod to rest against the inner wall of the pipe, thereby fixing the cover plate at the pipe opening, thereby achieving the closure of the pipe. The operation of this plugger is simple, and the sealing effect is good, and it is not easy to be damaged, thereby achieving more convenient pipe sealing.

[0007] Optionally, a support plate is hingedly connected at one end of the first support rod and the second support rod, and the support plate is arc-shaped.

[0008] By adopting the above solution, the support plate is provided to increase the force-bearing area of ​​the pipeline, so that the pipe mouth sealer can be sealed more firmly.

[0009] Optionally, a slider is provided at one end of the hinged support plate of the first support rod, and an arc-shaped sliding groove is provided at the hinge between the support plate and the first support rod. The slider is slidably connected in the sliding groove. When the slider slides to the edge of the sliding groove, the slider limits the movement of the support plate.

[0010] By adopting the above solution, a slide groove is provided to limit the rotation angle of the support plate, thereby preventing the support plate from rotating excessively and causing the support plate to fail to stick smoothly to the inner wall of the pipe, thereby causing a poor sealing effect of the plugger.

[0011] Optionally, the first support rods and the second support rods are provided in multiple groups.

[0012] By adopting the above solution, the stress-bearing area of ​​the pipeline is increased, and the stress on the pipeline is evenly distributed. In addition, multiple groups of first support rods and second support rods support each other, so that the fixation of the occluder is more stable.

[0013] Optionally, a hexagonal groove is fixedly provided at one end of the threaded rod facing away from the cover plate.

[0014] By adopting the above solution, the operator can insert the hexagonal wrench into the hexagonal groove, and then rotate the hexagonal wrench to drive the threaded rod to rotate, so that the operator can rotate the threaded rod more conveniently and with less effort.

[0015] Optionally, a handle is fixedly connected to the surface of the cover plate on one side facing away from the connecting plate, which facilitates an operator to cover the pipe opening with the cover plate.

[0016] By adopting the above solution, the operator can hold the handle with both hands to drive the cover to move, and the handle provides a fulcrum for the operator, making it more convenient for the operator to seal the pipeline.

[0017] Optionally, a circular ring column is fixedly connected to the edge of the surface of one side of the cover plate close to the connecting plate, and the circular ring column is sleeved on the outer circumferential surface of the pipeline.

[0018] By adopting the above solution, the edge seal of the cover plate is made tighter, and after the circular column covers the outside of the pipeline, the operator can loosen the cover plate without the need for the operator to lift the cover plate, thereby making the pipeline sealing simpler.

[0019] Optionally, an annular sealing airbag is provided on the inner circumferential surface of the circular ring column.

[0020] By adopting the above solution, a sealing airbag is provided to further seal the edge of the cover plate, so that the sealing effect of the occluder is better.

[0021] Optionally, a pressure chamber is opened at the center of the cover plate, and the pressure chamber is connected to a connecting channel, the other end of the connecting channel is connected to the sealing airbag, and a piston is slidably connected in the pressure chamber.

[0022] By adopting the above scheme, the operator can compress the air in the pressure chamber by moving the piston, so that the gas moves along the connecting channel into the sealing airbag, thereby inflating the sealing airbag and increasing the sealing effect of the occluder. When the piston moves in the opposite direction, the sealing airbag will be deflated, which is convenient for the operator to install.

[0023] Optionally, a sliding hole is provided on the surface of the cover plate close to the connecting plate, the sliding hole is connected to the pressure chamber, the piston is fixedly connected to a sliding rod, the sliding rod is slidably connected in the sliding hole, and the end of the sliding rod facing away from the piston passes through the sliding hole and is fixedly connected to a rack, a gear is fixedly connected to the second support rod and the cover plate hinge shaft, the gear is meshed with the rack, and the rotation of the second support rod drives the gear to rotate.

[0024] By adopting the above scheme, when installing the plugger, the cover plate is placed on the end of the pipeline, and then the threaded rod is rotated to reduce the distance between the connecting plate and the fixed sleeve, thereby rotating the first support rod and the second support rod, and the second support cover drives the gear to rotate, thereby driving the rack to move, thereby driving the slide rod and the piston to move in the direction of compressing the transmission chamber, so that the gas in the transmission chamber is compressed into the sealing airbag, so that the sealing airbag is inflated to seal the gap between the circular column and the pipeline, thereby making the sealing of the pipe mouth sealer simpler.

[0025] In summary, this application has the following technical effects: 1. By providing the cover plate, the threaded rod, the first support rod and the second support rod, when sealing the end of the pipeline, it is only necessary to rotate the threaded rod so that the first support rod abuts against the inside of the pipeline, so that the cover plate blocks the pipeline, making pipeline blocking easier; 2. The support plate is provided to increase the force-bearing area of ​​the inner wall of the pipeline, thereby reducing damage to the inner wall of the pipeline and making the plugging device more tightly sealed; 3. The gap between the pipeline and the cover plate is sealed by setting a sealing air bag, so that the plugger can seal more tightly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of this application; Figure 2 It is a cross-sectional view of the overall structure of this application; Figure 3 yes Figure 2 A partial enlarged view of the structure at A in the middle; Figure 4 It is a partial structural cutaway view intended to emphasize the connection between the first support rod and the support plate in this application; Figure 5 This is a partial structural diagram of the handle that is intended to be emphasized in this application.

[0027] In the figure, 1, cover plate; 11, handle; 12, circular column; 13, pressure chamber; 14, connecting channel; 15, piston; 151, slide rod; 16, slide hole; 2, threaded rod; 21, connecting plate; 22, fixing sleeve; 23, hexagonal groove; 3, first support rod; 31, slide groove; 4, second support rod; 5, support plate; 51, slider; 6, sealing airbag; 7, gear; 71, rack. DETAILED DESCRIPTION

[0028] The present application is further described in detail below with reference to the accompanying drawings.

[0029] Reference Figure 1 and Figure 2 The pipe orifice plugger comprises a cover plate 1, a threaded hole is provided in the middle position of the cover plate 1, and the cover plate 1 is threadedly connected with a threaded rod 2, one end of the threaded rod 2 is rotatably connected with a connecting plate 21, the connecting plate 21 is hinged with a first support rod 3, the first support rod 3 is hinged with a second support rod 4 at one end close to and away from the connecting plate 21, the second support rod 4 is hinged to the cover plate 1 at one end away from the first support rod 3, the cover plate 1 is fixedly connected to one end of the second support rod 4 with a fixing sleeve 22, a circular hole is provided in the middle position of the fixing sleeve 22 for the threaded rod 2 to pass through, and the second support rod 4 is hinged to the fixing sleeve 22. When the pipe opening needs to be sealed, the threaded rod 2, the first support rod 3 and the second support plate 5 are placed into the pipe, and the cover plate 1 is covered on the pipe opening. Then the threaded rod 2 is rotated to move the threaded rod 2 toward the side of the cover plate 1 away from the pipe, thereby driving the first support rod 3 and the second support rod 4 to move, thereby driving the first support rod 3 and the second support rod 4 to connect one end against the inner wall of the pipe, thereby fixing the cover plate 1 at the pipe opening, thereby closing the pipe. This plugger is simple to operate, has a good sealing effect, and is not prone to damage, thereby making pipe sealing more convenient.

[0030] Reference Figure 1 and Figure 4The first support rod 3 and the second support rod 4 are provided with four groups, and the four groups of first support rods 3 and second support rods 4 are evenly distributed in a circular array. The second support rod 4 is hinged at the end of the first support rod 3 away from the connecting plate 21, and there is a certain distance between the second support rod 4 and the end of the first support rod 3, and a support plate 5 is hinged at the end of the first support rod 3 away from the connecting plate 21. The support plate 5 is arc-shaped, and a slider 51 is fixedly connected at the hinge of the first support rod 3 and the support plate 5. An arc-shaped sliding groove 31 is opened at the hinge of the support plate 5, and the slider 51 is slidably connected in the sliding groove 31. When the slider 51 slides to the edge position of the sliding groove 31, the slider 51 limits the rotation of the support plate 5, thereby preventing the support plate 5 from rotating too much. When the threaded rod 2 is rotated to shorten the distance between the connecting plate 21 and the fixing sleeve 22, the support plate 5 is abutted against the inside of the pipeline. The support plate 5 increases the force-bearing area of ​​the pipeline, increases the friction force on the pipeline, and thus makes the occluder installed more tightly.

[0031] Reference Figure 1 and Figure 2 A spring is sleeved on the outer side of the threaded rod 2, and the two ends of the spring are respectively connected to the connecting plate 21 and the fixing sleeve 22. The fixing sleeve 22 and the cover plate 1 are connected by pins. When facing pipes with different diameters, only the cover plate 1 needs to be replaced to block different pipe diameters.

[0032] Reference Figure 5 The cover plate 1 has two handles 11 fixedly connected to the surface of the side away from the connecting plate 21. When the occluder needs to be installed, the operator can use the handles 11 as force points to pick up the occluder, which is convenient for the installation of the occluder. The threaded rod 2 has a hexagonal groove 23 at one end away from the connecting rod. When the operator rotates the threaded rod 2, the operator can insert a hexagonal wrench into the hexagonal groove 23, and then rotate the threaded rod 2 with the hexagonal wrench, so that the operator can rotate the threaded rod 2 more easily.

[0033] Reference Figure 2 The diameter of the cover plate 1 is larger than the diameter of the pipeline, and a circular column 12 is fixedly connected to the edge of the cover plate 1 on one side close to the connecting plate 21, and the circular column 12 is sleeved on the outside of the pipeline. When installing the pipeline, the operator sleeves the circular column 12 on the outside of the pipeline, and the circular column 12 is hung on the pipeline, and the operator does not need to seal the pipeline plugger, which is convenient for the operator to perform the next step, thereby making the installation of the pipe plugger more convenient.

[0034] Reference Figure 2 and Figure 3, an annular sealing airbag 6 is connected to the inner circumferential surface of the annular column 12, and the sealing airbag 6 blocks the gap between the annular column 12 and the pipeline, so that the sealing effect of the plugger is better. A pressure chamber 13 is provided on the inner surface of the cover plate 1, and a connecting channel 14 for connecting the airbag is provided on the surface of the pressure chamber 13 on the side away from the fixed sleeve 22. There are four connecting channels 14, and the four connecting channels 14 are evenly distributed in a circular array. A piston 15 is slidably connected in the pressure chamber 13, and four sliding holes 16 are provided on the surface of the cover plate 1 on the side close to the fixed sleeve 22. A sliding rod 151 is slidably connected in the sliding hole 16, one end of the sliding rod 151 is fixedly connected to the piston 15, and the end of the sliding rod 151 away from the piston 15 passes through the sliding hole 16 and is connected to a rack 71. A gear 7 is fixedly connected to the hinge shaft of the second support rod 4 and the fixed sleeve 22, and the rotation of the second support rod 4 drives the gear 7 to rotate, and the gear 7 is meshed with the rack 71. When installing the plugger, cover the cover plate 1 on the end of the pipeline, and then rotate the threaded rod 2 to reduce the distance between the connecting plate 21 and the fixing sleeve 22, so that the first support rod 3 and the second support rod 4 rotate, and the second support cover drives the gear 7 to rotate, thereby driving the rack 71 to move, thereby driving the slide rod 151 and the piston 15 to move in the direction of the compression transmission chamber, so that the gas in the transmission chamber is compressed into the sealing airbag 6, so that the sealing airbag 6 is inflated to seal the gap between the annular column 12 and the pipeline, thereby making the pipe mouth seal The sealing of the device is simpler.

[0035] The specific implementation principle of the present application is: when installing the plugger, the cover plate 1 is covered on the end of the pipe, and then the threaded rod 2 is rotated to reduce the distance between the connecting plate 21 and the fixing sleeve 22, so that the first support rod 3 and the second support rod 4 are rotated, so that the support plate 5 abuts against the inner wall of the pipe, thereby fixing the cover plate 1 at the pipe mouth, and at the same time, the second support cover drives the gear 7 to rotate, thereby driving the rack 71 to move, thereby driving the slide rod 151 and the piston 15 to move in the direction of compressing the transmission chamber, so that the gas in the transmission chamber is compressed into the sealing airbag 6, so that the sealing airbag 6 is inflated to seal the gap between the annular column 12 and the pipe, thereby making the sealing of the pipe mouth sealer simpler.

[0036] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A pipe orifice plugging device, characterized in that: The invention comprises a cover plate (1), a threaded hole is provided in the middle of the cover plate (1), and the cover plate (1) is threadedly connected to a threaded rod (2), one end of the threaded rod (2) is rotatably connected to a connecting plate (21), the connecting plate (21) is hinged to a first support rod (3), the first support rod (3) is hinged to an end thereof close to and away from the connecting plate (21), the second support rod (4) is hinged to the cover plate (1) at an end thereof away from the first support rod (3), the cover plate (1) is fixedly connected to an end thereof connected to the second support rod (4) with a fixing sleeve (22), a circular hole is provided in the middle of the fixing sleeve (22) for the threaded rod (2) to pass through, and the second support rod (4) is hinged to the fixing sleeve (22).

2. The tube orifice plugging device according to claim 1, characterized in that: One end of the first support rod (3) and the second support rod (4) is hingedly connected to a support plate (5), and the support plate (5) is arc-shaped.

3. The tube orifice plugging device according to claim 2, characterized in that: A slider (51) is provided at one end of the hinged support plate (5) of the first support rod (3); an arc-shaped slide groove (31) is provided at the hinged portion between the support plate (5) and the first support rod (3); the slider (51) is slidably connected in the slide groove (31); when the slider (51) slides to the edge of the slide groove (31), the slider (51) limits the movement of the support plate (5).

4. The tube orifice plugging device according to claim 1, characterized in that: The first support rods (3) and the second support rods (4) are provided in multiple groups.

5. The tube orifice plugging device according to claim 1, characterized in that: An inner hexagonal groove (23) is fixedly formed on one end of the threaded rod (2) facing away from the cover plate (1).

6. The tube orifice plugging device according to claim 1, characterized in that: A handle (11) is fixedly connected to the surface of the cover plate (1) on one side facing away from the connecting plate (21) for facilitating an operator to cover the pipe opening with the cover plate (1).

7. The tube orifice plugging device according to claim 1, characterized in that: A circular column (12) is fixedly connected to the edge of the surface of one side of the cover plate (1) close to the connecting plate (21), and the circular column (12) is sleeved on the outer circumferential surface of the pipeline.

8. The tube orifice plugging device according to claim 7, characterized in that: An annular sealing air bag (6) is arranged on the inner circumferential surface of the circular ring column (12).

9. The tube orifice plugging device according to claim 8, characterized in that: A pressure chamber (13) is provided at the center of the cover plate (1), and the pressure chamber (13) is connected to a connecting channel (14), the other end of the connecting channel (14) is connected to the sealing airbag (6), and a piston (15) is slidably connected to the pressure chamber (13).

10. The tube orifice plugging device according to claim 9, characterized in that: A sliding hole (16) is provided on the surface of one side of the cover plate (1) close to the connecting plate (21), the sliding hole (16) is communicated with the pressure chamber (13), the piston (15) is fixedly connected with a sliding rod (151), the sliding rod (151) is slidably connected in the sliding hole (16), and the end of the sliding rod (151) away from the piston (15) passes through the sliding hole (16) and is fixedly connected with a rack (71), a gear (7) is fixedly connected to the hinge shaft of the second support rod (4) and the cover plate (1), the gear (7) is meshed with the rack (71), and the rotation of the second support rod (4) drives the gear (7) to rotate.

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