Pipeline plugging device for urban gas engineering

Abstract

The utility model relates to the technical field of gas pipeline plugging, and provides a pipeline plugging device for urban gas engineering, which comprises a sleeve (1), a clamping mechanism (3) for clamping a gas pipeline body (2) is arranged on the sleeve (1), and the distance between two clamping ends can be adjusted by the clamping mechanism (3); a plugging mechanism (4) is further arranged in the sleeve (1), a hanging plate (5) is fixedly connected to the inner wall of the sleeve (1), and a mounting plate (6) is fixedly connected to one end of the sleeve (1); the plugging mechanism (4) comprises a threaded rod (41) which penetrates through and is in threaded connection with the hanging plate (5), the end, close to the gas pipeline body (2), of the threaded rod (41) is fixedly connected with a plugging block (42), the shape of the plugging block (42) is a conical section, the end, away from the plugging block (42), of the threaded rod (41) is fixedly connected with an adjusting rod (43), and the adjusting rod (43) penetrates through and is movably connected with the mounting plate (6). The utility model can be adapted to gas pipelines with different pipe diameters.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pipeline blocking, and more specifically, particularly to a pipeline blocking device for urban gas engineering. Background Art

[0002] A gas pipeline is a special pipeline for transporting combustible gas. It is a metal gas pipe hose that replaces the traditional snap-on rubber hose. It can solve the defects of rubber hoses that are easy to fall off, easy to age, easy to be bitten by insects, and have a short service life. With the progress of society, most towns and cities have also been connected to natural gas for daily use. When the gas pipeline is under maintenance or not in use, the pipe opening needs to be sealed with a plugger.

[0003] The patent with announcement number CN221121443U discloses a gas pipeline sealing device, relates to the technical field of gas pipeline sealing, comprises a gas pipeline, a pipe opening plug on one side of the gas pipeline is provided with a sealing plate, one side of the sealing plate is integrally connected with an upper clamp half hoop that fits the outer pipe wall of the gas pipeline, the clamp surface of the upper clamp half hoop is fitted with a lower clamp half hoop for adjusting and tightening, one side surface of the upper clamp half hoop is fixedly connected with an upper fixing plate, one side surface of the lower clamp half hoop is fixedly connected with a lower movable plate, an adjusting rod for adjusting and tightening is arranged between the upper fixing plate and the lower movable plate, the surface of the upper clamp half hoop passes through the interior of the gas pipeline and is connected with an air inlet pipe, both sides of the air inlet pipe are respectively connected with an air bag and an inflatable ball, the sealing plate is connected with a sealing ring, the upper clamp half hoop and the lower clamp half hoop are both connected with a sealing gasket, the fitting surfaces of the upper clamp half hoop and the lower clamp half hoop are symmetrically connected with a connecting groove plate, the inner thread of the connecting groove plate is fixed with bolts, so as to improve the sealing effect of the sealing. However, the gas pipeline blocking device in the prior art cannot be adapted to gas pipelines of different diameters. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the utility model aims to provide a pipeline plugging device for urban gas engineering, which can be adapted to gas pipelines of different diameters.

[0005] A pipeline plugging device for urban gas engineering, comprising a sleeve, on which is provided a clamping mechanism for clamping a gas pipeline body, and the clamping mechanism can adjust the distance between the two clamping ends; a plugging mechanism is also provided in the sleeve, a hanging plate is fixedly connected to the inner wall of the sleeve, and a mounting plate is fixedly connected to one end of the sleeve; the plugging mechanism comprises a threaded rod passing through and threadedly connected to the hanging plate, a plugging block is fixedly connected to one end of the threaded rod close to the gas pipeline body, and the shape of the plugging block is a cross-sectional cone, and an adjusting rod is fixedly connected to one end of the threaded rod away from the plugging block, and the adjusting rod passes through and is movably connected to the mounting plate.

[0006] Furthermore, a rubber layer is provided on the surface of the blocking block.

[0007] Furthermore, a support plate is fixedly connected to the outer side wall of the sleeve.

[0008] Furthermore, the clamping mechanism includes a rotating rod penetrating through and rotatably connected to the support plate, one end of the rotating rod is provided with a first thread, and the other end of the rotating rod is provided with a second thread opposite to the first thread.

[0009] Furthermore, the clamping mechanism also includes two adjustment arms threadedly connected to the rotating rod, one end of the adjustment arm penetrates and slides on the sleeve, and one end of the adjustment arm located in the sleeve is a clamping end and is fixedly connected to a clamping block.

[0010] Furthermore, the clamping block is arc-shaped and an anti-slip layer is provided on the side where the two clamping blocks are close to each other.

[0011] Furthermore, a locking mechanism is provided on the mounting plate; the locking mechanism comprises a mounting box fixedly connected to a side wall of the mounting plate, and the adjusting rod passes through and is movably connected to the mounting box.

[0012] Furthermore, the locking mechanism also includes a plurality of limiting teeth fixedly connected to the peripheral side wall of the adjusting rod, the cross section of the limiting teeth is a quarter circle, and a limiting plug block penetrates and slides on the installation box.

[0013] Furthermore, the locking mechanism also includes an installation slot provided on the installation box, and the two side walls of the limiting plug block are fixedly connected with a transverse plate, and a spring is connected between the transverse plate and the inner wall of the installation slot.

[0014] Furthermore, a handle is fixedly connected to the outer side wall of the sleeve.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] In the utility model, the threaded rod is rotated by rotating the adjusting rod, and the sealing block is rotated close to the gas pipeline body. Since the sealing block is in the shape of a cross-sectional cone, the sealing block can be adapted to gas pipeline bodies with different inner diameters. The adjusting rod is rotated until it is difficult to continue rotating. At this time, the sealing block blocks the opening of the gas pipeline body; the clamping mechanism can adjust the distance between the two clamping ends, and thus adapt to gas pipeline bodies with different outer diameters. Through the cooperation of the clamping mechanism and the sealing mechanism, gas pipeline bodies with different pipe diameters can be adapted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1This is a schematic diagram of the overall structure of a pipeline plugging device for urban gas engineering. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall structure of a pipeline plugging device for urban gas engineering. Figure 2 ;

[0020] Figure 3 is a schematic diagram of the blocking mechanism;

[0021] Figure 4 is a cross-sectional view of the locking mechanism;

[0022] Figure 5 It is a cross-sectional view of the blocking mechanism and the locking mechanism.

[0023] In the figure: 1. sleeve; 2. gas pipeline body; 3. clamping mechanism; 31. rotating rod; 32. first thread; 33. second thread; 34. adjusting arm; 35. clamping block; 4. blocking mechanism; 41. threaded rod; 42. blocking block; 43. adjusting rod; 5. hanging plate; 6. mounting plate; 7. locking mechanism; 71. mounting box; 72. limiting teeth; 73. limiting plug block; 74. mounting groove; 75. horizontal plate; 76. spring; 8. handle; 9. support plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment:

[0026] like Figure 1-5As shown, a pipe plugging device for urban gas engineering comprises a sleeve 1, which is used to be sleeved on the outside of a gas pipeline body 2. A clamping mechanism 3 for clamping the outer wall of the gas pipeline body 2 is arranged on the sleeve 1. The clamping mechanism 3 can adjust the distance between the two clamping ends to adapt to gas pipeline bodies 2 with different outer diameters; a plugging mechanism 4 for plugging the gas pipeline body 2 is also arranged in the sleeve 1, a hanging plate 5 is fixedly connected to the inner wall of the sleeve 1, and an end of the sleeve 1 away from the gas pipeline body 2 is fixedly connected to a mounting plate 6, and the hanging plate 5 and The mounting plate 6 is used to install the plugging mechanism 4; the plugging mechanism 4 includes a threaded rod 41 that penetrates and is threadedly connected to the hanging plate 5, and a plugging block 42 is fixedly connected to one end of the threaded rod 41 close to the gas pipeline body 2. The plugging block 42 is in the shape of a conical section, and a rubber layer is provided on the arc surface of the plugging block 42 to improve the sealing performance. The diameter of the plugging block 42 close to the gas pipeline body 2 is smaller than the diameter of the other side. The end of the threaded rod 41 away from the plugging block 42 is fixedly connected to an adjusting rod 43, which penetrates and is movably connected to the mounting plate 6. After the device is clamped on the gas pipeline body 2 by the clamping mechanism 3, the threaded rod 41 is rotated by rotating the adjusting rod 43, and the plugging block 42 rotates close to the gas pipeline body 2. Since the plugging block 42 is in the shape of a conical section, the plugging block 42 can be adapted to gas pipeline bodies 2 with different inner diameters. The adjusting rod 43 is rotated until it is difficult to continue to rotate. At this time, the plugging block 42 blocks the opening of the gas pipeline body 2.

[0027] like Figure 1-5 As shown, the outer wall of the sleeve 1 is fixedly connected to a support plate 9, and the support plate 9 is used to install the clamping mechanism 3; the clamping mechanism 3 includes a rotating rod 31 that passes through and is rotatably connected to the support plate 9, and two limit flanges are arranged on the rod body of the rotating rod 31, and the limit flanges are located on the upper and lower end surfaces of the support plate 9 to prevent the rotating rod 31 from sliding up and down; one end of the rotating rod 31 located above the support plate 9 is provided with a first thread 32, and the other end is provided with a second thread 33 with the opposite texture of the first thread 32. The clamping mechanism 3 also includes two adjusting arms 34 threadedly connected to the rotating rod 31, one end of the adjusting arm 34 is threadedly connected to the rotating rod 31, and the other end passes through and slides on the sleeve 1, and the end of the adjusting arm 34 located in the sleeve 1 is the clamping end and is fixedly connected with a clamping block 35, the cross-section of the clamping block 35 is arc-shaped and the two clamping blocks 35 are close to each other. The side is provided with an anti-slip layer. In this embodiment, the anti-slip layer is made of rubber material. After the sleeve 1 is sleeved on the outside of the gas pipeline body 2, the blocking block 42 is roughly placed inside the gas pipeline body 2, and the two adjusting arms 34 are displaced by rotating the rotating rod 31. The two clamping blocks 35 approach the gas pipeline body 2 and clamp it, so that the device is clamped on the gas pipeline body 2, and then the adjusting rod 43 is rotated to make the blocking block 42 block the gas pipeline body 2.

[0028] like Figure 1-5As shown, a locking mechanism 7 is provided on the mounting plate 6, and the locking mechanism 7 is used to lock the adjusting rod 43 to prevent it from reversing; the locking mechanism 7 includes a mounting box 71 fixedly connected to the side wall of the mounting plate 6, and the adjusting rod 43 passes through and is movably connected to the mounting box 71; the locking mechanism 7 also includes a plurality of limiting teeth 72 fixedly connected to the peripheral side wall of the adjusting rod 43, and the cross-section of the limiting teeth 72 is a quarter circle. A limiting plug block 73 passes through and slides on the mounting box 71, and the lower end of the limiting plug block 73 is located in the mounting box 71 and contacts with the right-angle surface of the limiting tooth 72 at a suitable position. An inclined surface is provided at the lower end of the limiting plug block 73. When the adjusting rod 43 rotates clockwise, the arc surface of the limiting tooth 72 rotates close to the inclined surface of the lower end of the limiting plug block 73, and the length of the limiting tooth 72 is the same as the length of the threaded rod 41. By rotating the threaded rod 41 clockwise, the arc surface of the limiting tooth 72 contacts the lower end of the limiting plug 73 and pushes it upward so that it does not affect the rotation of the adjusting rod 43. When it is rotated to a suitable position, the right-angled surface of the limiting tooth 72 located below the limiting plug 73 abuts against the lower end side wall of the limiting plug 73, which can prevent the adjusting rod 43 from rotating in the opposite direction (counterclockwise), thereby preventing the adjusting rod 43 from rotating in the opposite direction due to external force, thereby preventing the sealing effect of the sealing mechanism 4 from being reduced.

[0029] like Figure 1-5 As shown, the locking mechanism 7 also includes a mounting groove 74 provided at the connection between the mounting box 71 and the limiting plug 73. The two side walls of the limiting plug 73 located in the mounting groove 74 are fixedly connected with a transverse plate 75. A spring 76 is connected between the transverse plate 75 and the inner wall of the mounting groove 74. When the spring 76 is in a normal state, the limiting plug 73 contacts the right-angle surface of the limiting tooth 72 at a suitable position. When the arc surface of the limiting tooth 72 contacts the lower end of the limiting plug 73 and pushes the limiting plug 73, the spring 76 is squeezed. When the limiting tooth 72 completely passes under the limiting plug 73, the limiting plug 73 is pushed to the original position by the thrust force of the spring 76 to restore the deformation. The locking stability of the locking mechanism 7 can be improved by the cooperation of the spring 76, the transverse plate 75 and the mounting groove 74.

[0030] like Figure 1-5 As shown, a handle 8 is fixedly connected to the outer wall of the sleeve 1, and the handle 8 is provided to facilitate taking and installing the device.

[0031] The working principle of a pipeline plugging device for urban gas engineering in the present embodiment is: when in use, firstly, the sleeve 1 is sleeved on the outside of the gas pipeline body 2, and the plugging block 42 is roughly placed inside the gas pipeline body 2, and the two clamping blocks 35 are made close to the gas pipeline body 2 and clamped by rotating the rotating rod 31, so that the device is clamped on the gas pipeline body 2; then, the adjusting rod 43 is rotated until it is difficult to continue to rotate, at which time the plugging block 42 blocks the opening of the gas pipeline body 2, and through the cooperation of the clamping mechanism 3 and the plugging mechanism 4, it can adapt to gas pipeline bodies 2 of different diameters.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pipeline plugging device for town gas engineering, characterized in that: The invention comprises a sleeve (1), on which a clamping mechanism (3) for clamping a gas pipeline body (2) is arranged, and the clamping mechanism (3) can adjust the distance between the two clamping ends; a blocking mechanism (4) is also arranged inside the sleeve (1), a hanging plate (5) is fixedly connected to the inner wall of the sleeve (1), and one end of the sleeve (1) is fixedly connected to a mounting plate (6); the blocking mechanism (4) comprises a threaded rod (41) penetrating through and threadedly connected to the hanging plate (5), one end of the threaded rod (41) close to the gas pipeline body (2) is fixedly connected to a blocking block (42), the blocking block (42) is in the shape of a cross-section cone, and one end of the threaded rod (41) away from the blocking block (42) is fixedly connected to an adjusting rod (43), and the adjusting rod (43) penetrates through and is movably connected to the mounting plate (6).

2. A pipe plugging device for town gas engineering according to claim 1, characterized in that: A rubber layer is provided on the surface of the blocking block (42).

3. A pipe plugging device for town gas engineering according to claim 1, characterized in that: A support plate (9) is fixedly connected to the outer side wall of the sleeve (1).

4. A pipe plugging device for town gas engineering according to claim 3, characterized in that: The clamping mechanism (3) comprises a rotating rod (31) penetrating through and rotatably connected to the support plate (9); a first thread (32) is arranged at one end of the rotating rod (31) and a second thread (33) having a pattern opposite to that of the first thread (32) is arranged at the other end.

5. A pipe plugging device for town gas engineering according to claim 4, characterized in that: The clamping mechanism (3) further comprises two adjusting arms (34) threadedly connected to the rotating rod (31), one end of the adjusting arm (34) passes through and slides on the sleeve (1), and one end of the adjusting arm (34) located inside the sleeve (1) is a clamping end and is fixedly connected to a clamping block (35).

6. A pipe plugging device for town gas engineering according to claim 5, characterized in that: The clamping blocks (35) are arc-shaped and a non-slip layer is provided on the side where the two clamping blocks (35) are close to each other.

7. A pipe plugging device for town gas engineering according to claim 1, characterized in that: The mounting plate (6) is provided with a locking mechanism (7); the locking mechanism (7) comprises a mounting box (71) fixedly connected to the side wall of the mounting plate (6); the adjusting rod (43) passes through and is movably connected to the mounting box (71).

8. A pipe plugging device for town gas engineering according to claim 7, characterized in that: The locking mechanism (7) further comprises a plurality of limiting teeth (72) fixedly connected to the peripheral side wall of the adjusting rod (43), wherein the cross section of the limiting teeth (72) is a quarter circle, and a limiting plug block (73) passes through and slides on the installation box (71).

9. A pipe plugging device for town gas engineering according to claim 8, characterized in that: The locking mechanism (7) further comprises a mounting groove (74) provided on the mounting box (71), and the two side walls of the limiting plug block (73) are fixedly connected with a transverse plate (75), and a spring (76) is connected between the transverse plate (75) and the inner wall of the mounting groove (74).

10. A pipe plugging device for town gas engineering according to claim 1, characterized in that: A handle (8) is fixedly connected to the outer side wall of the sleeve (1).

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