A pipe dust sealing device

Abstract

This utility model relates to the field of pipeline sealing technology, and in particular to a pipeline dustproof sealing device, comprising an air cylinder, a dustproof plate fixedly connected to the right side of the inner side of the air cylinder, a pull rod movably connected inside the dustproof plate, a piston fixedly connected to the left end of the pull rod, an air inlet block fixedly connected to the left side of the air cylinder, an air bladder fixedly connected to the outer side of the air cylinder and the air inlet block, and an air outlet pipe fixedly connected inside the air cylinder and the air inlet block. This utility model, by incorporating an air bladder, an air inlet block, and a piston, simplifies the sealing process. In use, the air bladder is inserted into the pipeline, and by continuously pulling the pull rod left and right, the piston moves left and right, allowing air to continuously enter the air bladder through the air inlet block, causing its volume to continuously increase and adhere to the inner wall of the pipeline for sealing. It is relatively simple to operate and easy to use.

Description

Technical Field

[0001] This utility model relates to the field of pipeline sealing technology, and in particular to a pipeline dust prevention and sealing device. Background Technology

[0002] Aviation kerosene is a petroleum product, mainly composed of hydrocarbon compounds of different fractions. It is primarily used as fuel for aircraft turbine engines. The transportation of aviation kerosene typically requires various pipelines. Before transporting or installing these pipelines, their openings must be sealed to prevent foreign objects from falling into the pipelines and causing inconvenience for cleaning operations.

[0003] When temporarily sealing pipelines, canvas covers and flange blind flanges are generally used. When using canvas covers, they need to be tied with cable ties, and when using flange blind flanges, they need to be connected by threads. The installation process is relatively cumbersome and not conducive to installation efficiency. Utility Model Content

[0004] In view of this, the present invention provides a pipe dustproof sealing device, the main technical problem to be solved is: the installation process is relatively complicated due to the use of canvas covers and flange blind plates for sealing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pipe dustproof sealing device, comprising an air cylinder, a dustproof plate fixedly connected to the right side of the inner side of the air cylinder, a pull rod movably connected inside the dustproof plate, a piston fixedly connected to the left end of the pull rod, an air inlet block fixedly connected to the left side of the air cylinder, an air bag fixedly connected to the outer side of the air cylinder and the air inlet block, an air outlet pipe fixedly connected inside the air cylinder and the air inlet block, the piston including a pull block fixedly connected to the left end of the pull rod, a first sealing sleeve fixedly connected to the outer side of the pull block, a first air inlet hole provided on the right side of the pull block, a support sleeve fixedly connected to the left side of the inner side of the pull block, a first sealing block movably connected to the right side of the inner side of the pull block, a sealing gasket fixedly connected to the right side of the first sealing block, a second air inlet hole provided inside the sealing gasket and the first sealing block, a connecting column fixedly connected to the left side of the first sealing block, a second sealing block fixedly connected to the left end of the connecting column, a second sealing sleeve fixedly connected to the outer side of the second sealing block, and a second spring fixedly connected between the support sleeve and the first sealing block.

[0006] By adopting the above technical solution, pulling the lever to the right moves the piston to the right, causing the air pressure in the space on the left side of the piston to decrease, while the air pressure on the right side of the piston is relatively higher than that on the left side. Under the action of air pressure, the first sealing block is pushed to the left, and at the same time, the connecting column is moved to move the second sealing block to the left. Through continuous movement, the second sealing block can be separated from the lever, allowing air from the right side to enter the space on the left side of the piston through the first and second air inlets. When the pressure on the left side of the piston rises to a certain level, it can push the first sealing block to the left under the action of the second spring. The sealing block moves to the right, and through continuous movement, the sealing gasket can be made to fit with the pull block. At the same time, it can drive the connecting column to make the second sealing sleeve on the second sealing block fit with the pull block, thereby sealing the space on the left and right sides of the piston. By moving the piston to the left, the air on the left side can be compressed, increasing the air pressure on the left side. Under the push of the piston, the air can enter the air bag through the air intake block. By continuously pushing the pull rod back and forth, air can continuously enter the air bag, thereby increasing the volume of the air bag and making it fit tightly against the inner wall of the pipe, thus sealing it.

[0007] As a further description of the above technical solution: the air cylinder includes a cylinder body, and the interior of the cylinder body is provided with a cylinder groove.

[0008] By adopting the above technical solution, the cylindrical groove is used to fix the air outlet pipe.

[0009] As a further description of the above technical solution: the airbag includes a bladder body fixedly connected to the outside of the air cylinder and the air inlet block, the outside of the bladder body is provided with a protrusion, and an inflation plug is fixedly connected to the right side of the bladder body.

[0010] By adopting the above technical solution, the protrusion is designed to ensure a tighter fit with the inner wall of the pipe.

[0011] As a further description of the above technical solution: the air intake block includes a block fixedly connected to the left side of the cylinder body, a through hole on the right side of the block body, a support block fixedly connected to the left side of the block body, a fixing block fixedly connected between the support blocks, a support column fixedly connected to the right side of the fixing block, a top block movably connected to the outside of the support column, a top pad fixedly connected to the right side of the top block, a first spring fixedly connected between the fixing block and the top block, a frustum groove in the middle of the block body, and a block groove on the outside of the block body.

[0012] By adopting the above technical solution, when the air pressure on the left side of the piston increases, it can push the top block to move to the left on the outside of the support column. The movement allows the through hole to connect with the frustum groove, allowing air to enter the airbag. As air continuously enters, the air pressure in the airbag increases, while the air pressure on the left side of the piston decreases. Under the action of the first spring, the top block moves to the right, causing the top pad to fit against the block, thus sealing the air intake block and preventing air from flowing out of the airbag. This ensures that the air in the airbag does not flow out, reducing its volume and ensuring the stability of its seal on the pipeline.

[0013] As a further description of the above technical solution: the dustproof plate includes a plate body fixedly connected to the right side of the inner side of the cylinder, and a fixing sleeve is fixedly connected to the inner side of the plate body.

[0014] By adopting the above technical solution, the inside of the plate has multiple small holes, which have a certain dustproof function and allow outside air to enter the air cylinder.

[0015] As a further description of the above technical solution: the vent pipe includes a tube body fixedly connected to the inside of the cylinder and the block body, and a sealing cap is threaded to the right end of the outer side of the tube body.

[0016] By adopting the above technical solution, the left end of the tube is connected to the frustum groove, and the frustum groove is connected to the space inside the airbag. By unscrewing the sealing cap, the air in the airbag can be discharged through the tube, making it easy to remove after use.

[0017] By employing the above technical solution, the pipe dustproof sealing device of this utility model has at least the following beneficial effects:

[0018] Compared with existing technologies, this pipe dustproof sealing device, by incorporating an airbag, an air inlet block, and a piston, simplifies the sealing process. In use, the airbag is inserted into the pipe. By pulling the lever to the right, the piston moves to the right, lowering the air pressure on the left side of the piston and increasing the pressure on the right side. This pressure pushes the first sealing block to the left, simultaneously moving the connecting column and causing the second sealing block to move to the left. Continuous movement allows the second sealing block to disengage from the lever, enabling air from the right side to enter the space on the left side of the piston through the first and second air inlets. When the pressure on the left side of the piston reaches a certain level, a second spring pushes the first sealing block to the right. This continuous movement allows the sealing gasket to adhere to the lever, simultaneously moving the connecting column and the connecting column. The connecting rod causes the second sealing sleeve on the second sealing block to fit against the pull block, thereby sealing the space on the left and right sides of the piston. By moving the piston to the left, the air on the left side can be compressed, increasing the air pressure on the left side. This pushes the top block to move to the left outside the support column. This movement allows the through hole to connect with the frustum groove, allowing air to enter the airbag. As air continuously enters, the air pressure in the airbag increases, while the air pressure on the left side of the piston decreases. Under the action of the first spring, the top block moves to the right, causing the top pad to fit against the block, thus sealing the air intake block and preventing air from flowing out of the airbag. By repeatedly pushing the pull rod back and forth, air can continuously enter the airbag, increasing its volume and allowing it to fit tightly against the inner wall of the pipe, thus sealing it. The operation is relatively simple. Attached Figure Description

[0019] Figure 1 This is a cross-sectional structural diagram of a pipe dustproof sealing device proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of a pipe dustproof sealing device proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the air cylinder of the pipeline dustproof sealing device proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the air inlet block of a pipeline dustproof sealing device proposed in this utility model;

[0023] Figure 5 This is a schematic diagram of the piston cross-sectional structure of a pipe dustproof sealing device proposed in this utility model.

[0024] Legend:

[0025] 1. Air cylinder; 101. Cylinder body; 102. Cylinder groove; 2. Air bag; 201. Bag body; 202. Protrusion; 203. Inflation plug; 3. Air inlet block; 301. Block body; 302. Through hole; 303. Support column; 304. Top block; 305. Top pad; 306. Block groove; 307. Support block; 308. Fixing block; 309. First spring; 310. Frustum groove; 4. Piston; 401. Pull block; 402. First sealing sleeve; 403. First air inlet; 404. Second air inlet; 405. Sealing gasket; 406. First sealing block; 407. Second sealing sleeve; 408. Second sealing block; 409. Second spring; 410. Support sleeve; 411. Connecting column; 5. Dustproof plate; 501. Plate body; 502. Fixing sleeve; 6. Air outlet pipe; 601. Pipe body; 602. Sealing cover; 7. Pull rod. Detailed Implementation

[0026] Reference Figure 1-5This utility model provides a pipe dustproof sealing device, including an air cylinder 1. A dustproof plate 5 is fixedly connected to the right side of the inner side of the air cylinder 1. A pull rod 7 is movably connected inside the dustproof plate 5. A piston 4 is fixedly connected to the left end of the pull rod 7. An air inlet block 3 is fixedly connected to the left side of the air cylinder 1. An air bag 2 is fixedly connected to the outer side of the air cylinder 1 and the air inlet block 3. An air outlet pipe 6 is fixedly connected inside the air cylinder 1 and the air inlet block 3. The piston 4 includes a pull block 401 fixedly connected to the left end of the pull rod 7. The pull block 401 can move and rotate inside the air cylinder 1. A first sealing sleeve 402 is fixedly connected to the outer side of the pull block 401. The first sealing sleeve 402 fits against the inner wall of the air cylinder 1 to ensure its sealing performance. A first air inlet hole 403 is provided on the right side of the pull block 401. A support sleeve 410 is fixedly connected to the left side of the pull block 401. A first sealing block 406 is movably connected to the right side inside the pull block 401. The first sealing block 406 can move inside the pull block 401. A sealing gasket 405 is fixedly connected to the right side of the first sealing block 406. The sealing gasket 405 is used to ensure the sealing between the first sealing block 406 and the pull block 401. A second air inlet 404 is provided inside the sealing gasket 405 and the first sealing block 406. A connecting post 411 is fixedly connected to the left side of the first sealing block 406. A second sealing block 408 is fixedly connected to the left end of the connecting post 411. A second sealing sleeve 407 is fixedly connected to the outside of the second sealing block 408. The second sealing sleeve 407 is used to ensure the sealing between the second sealing block 408 and the pull block 401. A second spring 409 is fixedly connected between the support sleeve 410 and the first sealing block 406. In use, pulling the lever 7 to the right moves the piston 4 to the right, causing the air pressure on the left side of the piston 4 to decrease. The air pressure on the right side of the piston 4 is relatively higher than that on the left side. Under this pressure, the first sealing block 406 is pushed to the left, simultaneously causing the connecting column 411 to move the second sealing block 408 to the left. This continuous movement allows the second sealing block 408 to move away from the lever 401, allowing air from the right side to enter the space on the left side of the piston 4 through the first air inlet 403 and the second air inlet 404. When the pressure on the left side of the piston 4 rises to a certain level, the second spring 409... The piston 4 can be pushed to move the first sealing block 406 to the right. Through continuous movement, the sealing gasket 405 can be made to fit with the pull block 401. At the same time, the connecting column 411 can be driven to make the second sealing sleeve 407 on the second sealing block 408 fit with the pull block 401, thereby sealing the space on the left and right sides of the piston 4. By moving the piston 4 to the left, the air on the left side can be compressed, making the air pressure on the left side increase. Under the push of the piston 4, the air can enter the airbag 2 through the air inlet block 3. By pushing the pull rod 7 back and forth, the air can continuously enter the airbag 2, thereby increasing the volume of the airbag 2, so that it can fit tightly against the inner wall of the pipe, thereby sealing it. The operation is relatively simple.

[0027] Furthermore, the air cylinder 1 includes a cylinder body 101, and the inside of the cylinder body 101 is provided with a cylinder groove 102, which is used to fix the air outlet pipe 6.

[0028] Furthermore, the airbag 2 includes a bladder 201 fixedly connected to the outside of the air cylinder 1 and the air inlet block 3. The outer side of the bladder 201 is provided with a protrusion 202. The protrusion 202 ensures that it can fit more tightly against the inner wall of the pipe. An inflation plug 203 is fixedly connected to the right side of the bladder 201. By removing the inflation plug 203, an opening is made in the bladder 201, which can expel the air inside the bladder 201. At the same time, an air pump can be used to inflate the bladder 201 through the opening to speed up the inflation speed.

[0029] Furthermore, the air intake block 3 includes a block 301 fixedly connected to the left side of the cylinder 101. A through hole 302 is provided on the right side of the block 301. A support block 307 is fixedly connected to the left side of the interior of the block 301. A fixing block 308 is fixedly connected between the support blocks 307. A support column 303 is fixedly connected to the right side of the fixing block 308. A top block 304 is movably connected to the outside of the support column 303, allowing the top block 304 to move outside the support column 303. A top pad 305 is fixedly connected to the right side of the top block 304, ensuring a seal between the top block 304 and the block 301. A first spring 309 is fixedly connected between the fixing block 308 and the top block 304. A frustum groove 310 is provided in the middle of the interior of the block 301. The outer side of the part is provided with a block groove 306, which is used to fix the air outlet pipe 6. When the air pressure on the left side of the piston 4 increases, it can push the top block 304 to move to the left on the outside of the support column 303. Through the movement, the through hole 302 can be connected with the frustum groove 310, so that air can enter the airbag 2. As air continues to enter, the air pressure in the airbag 2 increases, while the air pressure on the left side of the piston 4 decreases. Under the action of the first spring 309, the top block 304 moves to the right, so that the top pad 305 fits with the block 301, thereby sealing the air inlet block 3 and preventing the air in the airbag 2 from flowing out. This ensures that the air in the airbag 2 does not flow out, thus reducing its volume and ensuring the stability of its seal on the pipeline.

[0030] Furthermore, the dustproof plate 5 includes a plate 501 fixedly connected to the right side of the inner side of the cylinder 101. The plate 501 has multiple small holes inside, which have a certain dustproof function and allow outside air to enter the air cylinder 1. A fixing sleeve 502 is fixedly connected to the inner side of the plate 501. The fixing sleeve 502 has a groove inside for the pull rod 7 to move and rotate, so as to ensure that the movement and rotation of the pull rod 7 are more stable.

[0031] Furthermore, the air outlet pipe 6 includes a pipe body 601 fixedly connected inside the cylinder 101 and the block 301. The right end of the outer side of the pipe body 601 is threaded with a sealing cap 602. The left end of the pipe body 601 is connected to the frustum groove 310, which is connected to the space inside the airbag 2. By unscrewing the sealing cap 602, the air in the airbag 2 can be discharged through the pipe body 601, making it easy to remove after use.

[0032] Working principle: During use, the airbag 2 is inserted into the pipe. By pulling the lever 7 to the right, the piston 4 moves to the right. This movement lowers the air pressure in the space to the left of the piston 4, while the air pressure on the right side of the piston 4 is higher than that on the left. Under this pressure, the first sealing block 406 is pushed to the left, which in turn moves the connecting column 411 to move the second sealing block 408 to the left. Through continuous movement, the second sealing block 408 can move away from the lever 401, allowing air from the right side to enter the space to the left of the piston 4 through the first air inlet 403 and the second air inlet 404. When the pressure on the left side of the piston 4 rises to a certain level, the second spring 409 pushes the first sealing block 406 to the right. Through continuous movement, the sealing gasket 405 can fit against the lever 401, and simultaneously, the connecting column 411 moves the second sealing sleeve 4 on the second sealing block 408. 07 is in contact with the pull block 401, thereby sealing the space on the left and right sides of the piston 4. By moving the piston 4 to the left, the air on the left side can be compressed, increasing the air pressure on the left side. This pushes the top block 304 to move to the left outside the support column 303. This movement allows the through hole 302 to connect with the frustum groove 310, allowing air to enter the airbag 2. As air continuously enters, the air pressure in the airbag 2 increases, while the air pressure on the left side of the piston 4 decreases. Under the action of the first spring 309, the top block 304 moves to the right, causing the top pad 305 to be in contact with the block 301, thus sealing the air intake block 3 and preventing air from flowing out of the airbag 2. By repeatedly pushing the pull rod 7 back and forth, air can continuously enter the airbag 2, increasing the volume of the airbag 2 so that it can be tightly attached to the inner wall of the pipe, thus sealing it. The operation is relatively simple.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dustproof plugging device for a pipeline, comprising a gas cylinder (1), characterized in that: A dustproof plate (5) is fixedly connected to the right side of the inner side of the air cylinder (1). A pull rod (7) is movably connected inside the dustproof plate (5). A piston (4) is fixedly connected to the left end of the pull rod (7). An air inlet block (3) is fixedly connected to the left side of the air cylinder (1). An air bag (2) is fixedly connected to the outside of the air cylinder (1) and the air inlet block (3). An air outlet pipe (6) is fixedly connected inside the air cylinder (1) and the air inlet block (3). The piston (4) includes a pull block (401) fixedly connected to the left end of the pull rod (7). A first sealing sleeve (402) is fixedly connected to the outside of the pull block (401). A first air inlet hole (403) is provided on the right side of the pull block (401). The inside of the pull block (401) A support sleeve (410) is fixedly connected to the left side of the pull block (401). A first sealing block (406) is movably connected to the right side inside the pull block (401). A sealing gasket (405) is fixedly connected to the right side of the first sealing block (406). A second air inlet (404) is provided inside the sealing gasket (405) and the first sealing block (406). A connecting post (411) is fixedly connected to the left side of the first sealing block (406). A second sealing block (408) is fixedly connected to the left end of the connecting post (411). A second sealing sleeve (407) is fixedly connected to the outside of the second sealing block (408). A second spring (409) is fixedly connected between the support sleeve (410) and the first sealing block (406).

2. The dustproof plugging device for pipeline according to claim 1, characterized in that: The air cylinder (1) includes a cylinder body (101), and the inside of the cylinder body (101) is provided with a cylinder groove (102).

3. The dustproof plugging device for pipeline of claim 1, wherein: The airbag (2) includes a bladder body (201) fixedly connected to the outside of the air cylinder (1) and the air inlet block (3). The outside of the bladder body (201) is provided with a protrusion (202), and an inflation plug (203) is fixedly connected to the right side of the bladder body (201).

4. The dustproof plugging device for pipeline of claim 1, wherein: The air intake block (3) includes a block (301) fixedly connected to the left side of the cylinder (101). The right side of the block (301) is provided with a through hole (302). A support block (307) is fixedly connected to the left side inside the block (301). A fixing block (308) is fixedly connected between the support blocks (307). A support column (303) is fixedly connected to the right side of the fixing block (308). A top block (304) is movably connected to the outside of the support column (303). A top pad (305) is fixedly connected to the right side of the top block (304). A first spring (309) is fixedly connected between the fixing block (308) and the top block (304). A frustum groove (310) is provided in the middle inside the block (301). A block groove (306) is provided on the outside inside the block (301).

5. The dustproof plugging device for pipeline of claim 1, wherein: The dustproof plate (5) includes a plate (501) fixedly connected to the right side of the inner side of the cylinder (101), and a fixing sleeve (502) is fixedly connected to the inner side of the plate (501).

6. The dust sealing plugging device for pipeline according to claim 1, characterized in that: The vent pipe (6) includes a pipe body (601) fixedly connected inside the cylinder (101) and the block (301), and a sealing cap (602) is threadedly connected to the right end of the outer side of the pipe body (601).

Images