Local pipeline sealing mechanism convenient to maintain

Abstract

The utility model discloses a pipeline local sealing mechanism convenient to maintain, and relates to the technical field of pipeline local sealing, the pipeline local sealing mechanism comprises a sealing box covering a pipeline crevasse, the sealing box is provided with a glue injection port, the upper surface of the sealing box is provided with an internal and external threaded pipe communicated with the interior of the sealing box, and the internal and external threaded pipe is in threaded connection with an external threaded column; the lower end of the external threaded column is rotationally connected to the upper surface of the plugging cover in the sealing box, the internal and external threaded pipe is connected with a loading and unloading module, and the loading and unloading module is arranged on a fixing structure. The internal and external threaded pipe is arranged on the sealing box and is in threaded connection with the internal threaded sleeve, the internal threaded sleeve is rotationally connected into the third rotating shaft, and the outer diameter of the upper end and the lower end of the internal threaded sleeve is larger than that of the middle of the internal threaded sleeve, so that the internal and external threaded pipe drives the sealing box to descend to be attached to the surface of a pipeline when the internal threaded sleeve is rotated clockwise; when the internal thread sleeve is rotated anticlockwise, the internal and external thread pipe ascends to pull the sealing box away from the surface of the pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline local sealing, in particular to a pipeline local sealing mechanism which is easy to maintain. Background Art

[0002] When some pipelines, such as gas pipes, hot water pipes, and chemical raw material pipelines, are damaged, they need to be quickly sealed. The general local pipeline leak-proof device uses a sealing tube to cover the damaged area, covers the damaged opening with a thin plate inside the sealing tube, and then injects glue into the sealing cover to achieve sealing. Over time, the sealed area may leak due to factors such as material aging. When maintaining the local sealing device, the sealing tube is stuck to the pipe wall and is not easy to remove.

[0003] Based on this, a local pipeline sealing mechanism that is easy to maintain is now provided to eliminate the disadvantages of the existing devices. Utility Model Content

[0004] The utility model aims to provide a local pipeline sealing mechanism which is easy to maintain, so as to solve the problems in the background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A local pipeline sealing mechanism that is easy to maintain includes a sealing box that covers a broken pipe, a glue injection port is provided on the sealing box, an internal and external threaded pipe that is connected to the inside of the sealing box is provided on the upper surface of the sealing box, the internal threads of the internal and external threaded pipe are connected to an external threaded column, the lower end of the external threaded column is rotatably connected to the upper surface of the blocking cover in the sealing box, the internal and external threaded pipe is connected to a loading and unloading module, and the loading and unloading module is arranged on a fixed structure, and the fixing mechanism includes a pair of clamps arranged on both sides of the damaged part of the pipe.

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In an optional scheme: the loading and unloading module includes an internal threaded sleeve threadedly connected to the outer sides of the internal and external threaded pipes, the internal threaded sleeve rotates and passes through the third rotating shaft, the outer diameters of the upper and lower ends of the internal threaded sleeve are larger than the middle part, the upper end of the internal threaded sleeve is in the shape of a nut for convenient wrench twisting, the third rotating shaft is rotatably set in the middle part of the sealing frame, the left and right ends of the sealing frame are rotatably provided with a second rotating shaft, a bolt is movably passed through the second rotating shaft, the upper end of the bolt is threadedly connected to the nut above the second rotating shaft, the lower end of the bolt is set on the clamp, and a vertical guide strip is provided on the side of the sealing box, and the guide strip is in sliding contact with the inner side of the sealing frame.

[0009] In an optional solution: the lower end of the bolt is connected to a first rotating shaft, and the first rotating shaft is rotatably connected to the clamp.

[0010] In an optional solution: a hexagonal groove is provided at the top of the external threaded column.

[0011] In an optional solution: a sealing gasket is provided on the contact surface between the sealing box and the outer wall of the pipeline.

[0012] In an optional solution: the sealing box, the internal and external threaded tubes and the internal threaded sleeve are made of stainless steel.

[0013] In an optional solution: an auxiliary nut is threadedly connected to the bolt above the nut and contacts the nut.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The utility model arranges internal and external threaded tubes on a sealing box, the external threads of the internal and external threaded tubes are connected to an internal threaded sleeve, the internal threaded sleeve is rotatably connected in a third rotating shaft, the outer diameters of the upper and lower ends of the internal threaded sleeve are larger than the middle part of the internal threaded sleeve, so that when the internal threaded sleeve is rotated clockwise, the internal and external threaded tubes drive the sealing box to descend and fit the pipeline surface, and when the internal threaded sleeve is rotated counterclockwise, the internal and external threaded tubes rise and pull the sealing box away from the pipeline surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the front structure of the utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the loading and unloading module of the utility model.

[0018] Figure 3 It is a right side cross-sectional schematic diagram of the utility model.

[0019] Figure 4 For this utility model Figure 3 A partial enlarged view of middle A.

[0020] Notes on the figure markings: 101, clamp; 102, bolt; 103, nut; 104, first rotating shaft; 105, auxiliary nut; 201, sealing frame; 202, second rotating shaft; 203, third rotating shaft; 301, internally threaded sleeve; 302, internally and externally threaded pipe; 303, externally threaded column; 401, sealing box; 402, sealing cover; 403, glue injection port; 404, guide strip. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] In one embodiment, Figure 1-Figure 4As shown, a local pipeline sealing mechanism that is easy to maintain includes a sealing box 401 that covers the broken pipe, a glue injection port 403 is provided on the sealing box 401, an internal and external threaded pipe 302 that is connected to the inside of the sealing box 401 is provided on the upper surface of the sealing box 401, the internal and external threaded pipe 302 is internally threadedly connected to an external threaded column 303, the lower end of the external threaded column 303 is rotatably connected to the upper surface of the blocking cover 402 in the sealing box 401, the internal and external threaded pipe 302 is connected to a loading and unloading module, and the loading and unloading module is arranged on a fixed structure, and the fixing mechanism includes a pair of clamps 101 arranged on both sides of the damaged part of the pipe.

[0023] In this embodiment, the loading and unloading module on the fixed structure presses the lower opening of the sealing box 401 onto the pipe surface. During maintenance, the loading and unloading module can use the two clamps 101 as support points to pull out the sealing box 401 from the outer pipe wall, which is convenient and less likely to damage the pipe fittings.

[0024] In one embodiment, Figure 2 and Figure 4 As shown, the loading and unloading module includes an internal threaded sleeve 301 that is threadedly connected to the outer side of the internal and external threaded tube 302, the internal threaded sleeve 301 rotates and passes through the third rotating shaft 203, the outer diameters of the upper and lower ends of the internal threaded sleeve 301 are larger than the middle part, the upper end of the internal threaded sleeve 301 is in the shape of a nut that is convenient for a wrench to twist, the third rotating shaft 203 is rotatably arranged in the middle part of the sealing frame 201, the left and right ends of the sealing frame 201 are rotatably provided with a second rotating shaft 202, a bolt 102 is movably passed through the second rotating shaft 202, the upper end of the bolt 102 is threadedly connected to the nut 103 above the second rotating shaft 202, the lower end of the bolt 102 is arranged on the clamp 101, and the sealing A vertical guide strip 404 is provided on the side of the box 401, and the guide strip 404 is in sliding contact with the inner side of the sealing frame 201. By adjusting the position of the nut 103 on the bolt 102 and cooperating with the rotatable second rotating shaft 202, the distance between the sealing frame 201 and the pipeline surface can be adjusted, so that the sealing box 401 can be installed on a curved pipeline. The internal threaded sleeve 301 is rotated clockwise, and with the cooperation of the guide strip 404, the internal threaded sleeve 301 drives the internal and external threaded tubes 302 to move down and the sealing box 401 fits with the outer wall of the pipeline. When removing the sealing box 401, the internal threaded sleeve 301 is rotated counterclockwise, and the internal threaded sleeve 301 drives the internal and external threaded tubes 302 to move up and pull the sealing box 401 away from the pipeline surface.

[0025] In one embodiment, Figure 2 As shown, the lower end of the bolt 102 is connected to the first rotating shaft 104 , and the first rotating shaft 104 is rotatably connected to the clamp 101 to expand the adjustable range of the sealing frame 201 .

[0026] In one embodiment, Figure 2 and Figure 3As shown, a hexagonal groove is provided on the top of the external thread column 303, so that the external thread column 303 can be screwed into the internal and external threaded pipe 302 in its entirety, so that the length of the external thread column 303 can be shorter, saving processing materials.

[0027] In one embodiment, Figure 4 As shown, a sealing gasket is provided on the contact surface between the sealing box 401 and the outer wall of the pipeline to reduce the overflow of the colloid during the injection of the colloid.

[0028] In one embodiment, Figure 2 As shown, the sealing box 401, the internal and external threaded tubes 302 and the internal threaded sleeve 301 are made of stainless steel to prevent maintenance difficulties caused by rust of the materials in the later stage.

[0029] In one embodiment, Figure 1 and Figure 2 As shown, an auxiliary nut 105 in contact with the nut 103 is threadedly connected to the bolt 102 above the nut 103. The nut 103 and the auxiliary nut 105 are locked together on the bolt 102, so that the nut 103 is not easy to loosen, thereby preventing the sealing performance of the local sealing mechanism from being weakened due to structural loosening.

[0030] The above embodiment discloses a local pipeline sealing mechanism that is easy to maintain. During installation, the clamp 101 is first clamped on the pipelines on both sides of the breach, and then the second rotating shaft 202 on the sealing frame 201 is inserted into the bolt 102, so that the sealing box 401 is aligned with the breach on the pipeline, and then the clamp 101 is locked, and the internal thread sleeve 301 is rotated clockwise, and the internal thread sleeve 301 drives the internal and external threaded pipes 302 to move downward, and the sealing frame 201 covers the breach on the pipeline, and then the external thread column 303 is rotated, so that the external thread column 303 moves downward in the internal and external threaded pipes 302, driving the blocking cover 402 in the sealing box 40 1, and then inject glue into the sealing box 401 through the glue injection port 403. By loosening the auxiliary nuts 105 on the bolts 102 first, adjusting the heights of the nuts 103 on the two bolts 102 respectively, changing the angle between the sealing frame 201 and the pipeline, the position of the sealing frame 201 between the clamps 101 is finely adjusted. During maintenance, the internal threaded sleeve 301 is rotated counterclockwise, and the clamp 101 supports the sealing frame 201 by contacting the second rotating shaft 202. The internal threaded sleeve 301 drives the internal and external threaded pipes 302 to move upward, and the internal and external threaded pipes 302 pull the sealing box 401 to separate it from the pipeline surface.

[0031] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A local pipeline sealing mechanism that is easy to maintain, comprising a sealing box (401) that covers a broken opening of the pipeline, wherein the sealing box (401) is provided with a glue injection port (403); It is characterized in that The upper surface of the sealing box (401) is provided with an internal and external threaded tube (302) communicating with the interior of the sealing box (401); the internal thread of the internal and external threaded tube (302) is connected to the external threaded column (303); the lower end of the external threaded column (303) is rotatably connected to the upper surface of the blocking cover (402) in the sealing box (401); the internal and external threaded tube (302) is connected to a loading and unloading module; the loading and unloading module is arranged on a fixed structure; and the fixed structure includes a pair of clamps (101) arranged on both sides of a damaged portion of the pipeline.

2. The maintenance-friendly pipeline local sealing mechanism according to claim 1, characterized in that: The loading and unloading module comprises an internal threaded sleeve (301) threadably connected to the outer side of the internal and external threaded tube (302); the internal threaded sleeve (301) rotatably passes through the third rotating shaft (203); the outer diameters of the upper and lower ends of the internal threaded sleeve (301) are larger than the middle part; the upper end of the internal threaded sleeve (301) is in the shape of a nut convenient for twisting with a wrench; the third rotating shaft (203) is rotatably arranged in the middle part of the sealing frame (201); the left and right ends of the sealing frame (201) are rotatably provided with a second rotating shaft (202); a bolt (102) is movably passed through the inside of the second rotating shaft (202); the upper end of the bolt (102) is threadably connected to the nut (103) above the second rotating shaft (202); the lower end of the bolt (102) is arranged on the clamp (101); a vertical guide bar (404) is arranged on the side of the sealing box (401); the guide bar (404) is in sliding contact with the inner side of the sealing frame (201).

3. The maintenance-friendly local pipeline sealing mechanism according to claim 2, characterized in that: The lower end of the bolt (102) is connected to a first rotating shaft (104), and the first rotating shaft (104) is rotatably connected to the clamp (101).

4. The maintenance-friendly local pipeline sealing mechanism according to claim 1, characterized in that: A hexagonal groove is provided on the top of the external thread column (303).

5. The maintenance-friendly local pipeline sealing mechanism according to claim 1, characterized in that: A sealing gasket is provided on the contact surface between the sealing box (401) and the outer wall of the pipeline.

6. The maintenance-friendly local pipeline sealing mechanism according to claim 1, characterized in that: The sealing box (401), the internal and external threaded tube (302) and the internal threaded sleeve (301) are made of stainless steel.

7. The maintenance-friendly local pipeline sealing mechanism according to claim 2, characterized in that: An auxiliary nut (105) in contact with the nut (103) is threadedly connected to the bolt (102) above the nut (103).

Images