Pipeline butt joint detection device for water conservancy construction

Abstract

The utility model discloses a pipeline butt joint detection device for water conservancy construction, comprising a lower sleeve which is semicircular and is sleeved below a pipeline flange butt joint position, and butt joint half pipes are arranged at the centers of the surfaces of the two sides of the lower sleeve; the upper sleeve is semicircular, is sleeved above the butt joint position of the pipeline flanges and is positioned above the lower sleeve, and the same butt joint half pipes are mounted at the centers of the surfaces of the two sides of the upper sleeve; the square sealing gasket is arranged between the upper sleeve and the lower sleeve, and the strip-shaped sealing gaskets are mounted at the centers of the two sides of the square sealing gasket. According to the utility model, the butt joint part of the pipeline flange can be sealed in the upper sleeve and the lower sleeve by utilizing the butt joint of the upper sleeve and the lower sleeve, the sealing of the square sealing gasket, the butt joint of the butt joint half pipes and the sealing of the strip-shaped sealing gasket, so that the butt joint sealing performance of the flange is detected by utilizing a water pressure test; therefore, the butt joint leakproofness of the flanges is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field related to water conservancy projects, in particular to a pipeline butt detection device for water conservancy construction. Background Art

[0002] Water conservancy construction refers to the process of controlling and allocating water flow to meet various needs such as agriculture, industry, and urban water supply. Water conservancy construction often requires the laying of various pipes, such as drainage pipes, water pipes, water pump pipes, etc. The connection quality between these pipes directly affects the quality and efficiency of the project. Therefore, it is very necessary to test the sealing of the pipe connection.

[0003] In water conservancy project construction, the detection of pipeline joint sealing is mainly carried out by multi-point detection using a flaw detector. However, pipelines are also connected by flange butt joints, and the sealing of pipeline flange butt joints cannot be detected using a flaw detector. Therefore, a pipeline joint detection device for water conservancy construction is needed. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a pipeline docking detection device for water conservancy construction.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is a pipe docking detection device for water conservancy construction, comprising:

[0006] The lower sleeve is semicircular and is sleeved below the joint of the pipe flange. The joint half pipes are installed at the center of the surface on both sides of the lower sleeve. An external pressure plate is provided on the outer side of the upper end of the lower sleeve. The external pressure plate is installed on both sides of the joint half pipe. The water injection pipe is installed at the center of the lower surface of the lower sleeve. The valve is installed on the water injection pipe.

[0007] The upper sleeve is semicircular and is sleeved above the joint of the pipe flange and located above the lower sleeve. The same half-pipes are installed at the center of the surfaces on both sides of the upper sleeve. Two external pressure plates are set on the outer side of the upper end. The two external pressure plates are installed on both sides of the half-pipes. A detection tube is installed at the center of the upper surface. An exhaust valve is installed on the detection tube. A detection branch pipe is installed on the detection tube. A water pressure gauge is installed on the detection branch pipe.

[0008] A square sealing gasket is arranged between the upper sleeve and the lower sleeve, and between the outer pressure plate 1 and the outer pressure plate 2. Strip sealing gaskets are installed at the centers of both sides. The strip sealing gasket is located in the docking half-tube. A clamping groove is provided on the outside of one end of the strip sealing gasket, and a spherical protrusion is provided in the clamping groove. A docking boss is provided at the other end of the strip sealing gasket. The docking boss is movably inserted in the clamping groove and embedded in the spherical protrusion.

[0009] Preferably, the strip sealing gasket is wrapped on the outer surface of the pipe, and the docking boss is clamped into the clamping groove, and then wrapped on the pipe.

[0010] Preferably, one end of the docking boss is a 45° inclined surface, and the clamping groove has the same shape as the docking boss.

[0011] Preferably, a plurality of bolt holes are provided on the outer pressure plate 1 and the outer pressure plate 2, and are fastened by fastening bolts and fastening nuts so that the upper sleeve and the lower sleeve are docked.

[0012] Preferably, identical bolt holes are provided on the square sealing gasket so that the fastening bolts can pass through the square sealing gasket.

[0013] Preferably, the two butted half-pipes are joined together with the upper sleeve and the lower sleeve to form a circular pipe, and are sleeved on the pipe.

[0014] Preferably, the diameter of the butting half pipes is larger than the outer diameter of the pipeline, and the distance between them is smaller than the thickness of the strip sealing gasket.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. By connecting the upper sleeve and the lower sleeve and sealing with a square gasket, and then connecting the half-pipes and the strip gasket, the pipe flange joint can be sealed in the upper sleeve and the lower sleeve, and then the water pressure test can be used to detect the sealing of the flange joint to ensure the airtightness of the flange joint.

[0017] 2. The strip sealing gasket can be quickly installed on the pipe by using the setting of the strip sealing gasket, so that the butt joint half pipe can squeeze the strip sealing gasket to seal the pipe, thereby ensuring that the pipe flange joint is in a closed space, which is convenient for testing its sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a pipe docking detection device for water conservancy construction described in the utility model;

[0019] Figure 2 This utility model Figure 1 The main view;

[0020] Figure 3 This is a front view of the square sealing gasket of the present invention;

[0021] Figure 4 It is a top cross-sectional view of the square sealing gasket of the utility model;

[0022] In the picture:

[0023] 1. Lower sleeve; 11. Docking half pipe; 12. External pressure plate 1; 13. Water injection pipe; 14. Valve; 15. Bolt hole; 16. Fastening bolt; 17. Fastening nut.

[0024] 2. Upper sleeve; 21. External pressure plate 2; 22. Detection tube; 23. Exhaust valve; 24. Detection branch pipe; 25. Water pressure gauge.

[0025] 3. Square sealing gasket; 31. Strip sealing gasket; 32. Snap-fit ​​groove; 33. Spherical protrusion; 34. Docking boss. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The utility model provides a technical solution, such as Figures 1-4 As shown; a pipeline docking detection device for water conservancy construction, comprising: a lower sleeve 1, which is semicircular and is sleeved below the pipeline flange docking point, with docking half-pipes 11 installed at the center of its two side surfaces, an outer pressure plate 12 is provided on the outer side of its upper end, and the outer pressure plate 12 is installed on both sides of the docking half-pipe 11, an injection pipe 13 is installed at the center of its lower surface, and a valve 14 is installed on the water injection pipe 13; an upper sleeve 2, which is semicircular and is sleeved above the pipeline flange docking point and located above the lower sleeve 1, with identical docking half-pipes 11 installed at the center of its two side surfaces, an outer pressure plate 21 is provided on the outer side of its upper end, and the outer pressure plate 21 is installed on both sides of the docking half-pipe 11, a detection pipe 22 is installed at the center of its upper surface, an exhaust valve 23 is installed on the detection pipe 22, a detection branch pipe 24 is installed on the detection pipe 22, and a water pressure gauge 25 is installed on the detection branch pipe 24.

[0028] In the embodiment of the present invention, the lower sleeve 1 and the upper sleeve 2 are spliced ​​together to wrap the pipe flange inside the lower sleeve 1 and the upper sleeve 2, and the two docking half-pipes 11 are spliced ​​together to wrap the pipe, so that the docking point of the pipe flange can be wrapped in a closed space, and the sealing of the sealing gasket can be used to perform a water pressure test to detect its sealing condition.

[0029] In the embodiment of the present invention, the arrangement of the outer pressure plate 12 and the outer pressure plate 2 21 can increase the contact area thereof, thereby making the sealing gasket more evenly squeezed and ensuring the sealing effect.

[0030] In the embodiment of the present invention, by using the setting of the water injection pipe 13, after the upper sleeve 2 and the lower sleeve 1 are connected, water can be quickly injected into the interior thereof, and the opening and closing thereof can be controlled by the valve 14. At the same time, the exhaust valve 23 is used to enable the detection tube 22 to quickly discharge excess gas, and the test water pressure is detected by the water pressure gauge 25 on the detection branch pipe 24, so as to judge the sealing effect.

[0031] The square sealing gasket 3 is arranged between the upper sleeve 2 and the lower sleeve 1, and between the outer pressure plate 1 12 and the outer pressure plate 2 21. Strip sealing gaskets 31 are installed at the centers of both sides. The strip sealing gasket 31 is located in the docking half-tube 11. A snap-fit ​​groove 32 is provided on the outside of one end of the strip sealing gasket 31, and a spherical protrusion 33 is provided in the snap-fit ​​groove 32. A docking boss 34 is provided at the other end of the strip sealing gasket 31. The docking boss 34 is movably inserted in the snap-fit ​​groove 32 and embedded in the spherical protrusion 33.

[0032] In the embodiment of the present invention, the square sealing gasket 3 is provided to seal the joint between the upper sleeve 1 and the lower sleeve 2, and the strip sealing gasket 31 is installed on the square sealing gasket 3 to ensure that the two ends of the joint half-pipe 11 are tightly sealed. At the same time, the small sealing gasket 31 is assembled into an annular sealing gasket, which can be wrapped around the outer surface of the pipe and squeezed by the two joint half-pipes 11 to ensure the sealing between the pipe and the device, thereby placing the joint of the pipe flange in a closed space for water pressure testing to detect the sealing.

[0033] In the embodiment of the present invention, the arrangement of the snap-fit ​​groove 32 and the docking boss 34 and the snap-fit ​​of the spherical protrusion 33 allow the strip sealing gasket 31 to be quickly assembled, thereby facilitating the sealing of the strip sealing gasket 31 .

[0034] In the present invention, the strip sealing gasket 31 is wrapped around the outer surface of the pipe, and the docking boss 34 is snapped into the snapping groove 32, and then wrapped around the pipe, ensuring a tight seal between the pipe and the device.

[0035] In the present invention, one end of the docking boss 34 is a 45° inclined surface, and the clamping groove 32 has the same shape as the docking boss 34; the inclined surface of the docking boss 34 can be used to contact the inclined surface of the clamping groove 32, and the extrusion force generated by the extrusion can be used to fully squeeze the two inclined surfaces, thereby ensuring that the annular sealing gasket composed of the strip sealing gasket 31 is tightly sealed.

[0036] In the present invention, a plurality of bolt holes 15 are provided on the outer pressure plate 12 and the outer pressure plate 2 21, and are fastened by fastening bolts 16 and fastening nuts 17 to dock the upper sleeve 2 with the lower sleeve 1; the fastening bolts 16 and fastening nuts 17 can be used to quickly dock the upper sleeve 2 and the lower sleeve 1, and ensure the tightness of the docking.

[0037] In the present invention, identical bolt holes 15 are provided on the square sealing gasket 3 , so that the fastening bolts 16 can pass through the square sealing gasket 3 , thereby facilitating the installation of the square sealing gasket 3 .

[0038] In the present invention, the two butt-jointed half-pipes 11 are joined together to form a circular pipe as the upper sleeve 2 and the lower sleeve 1 are butt-jointed, and are sleeved onto the pipe; ensuring that they can fully squeeze the strip sealing gasket 31, thereby keeping the pipe and the butt-jointed half-pipes 11 in a sealed state.

[0039] In the present invention, the diameter of the butt joint half pipe 11 is larger than the outer diameter of the pipeline, and the distance between them is smaller than the thickness of the strip sealing gasket 31, so that the strip sealing gasket 31 can be fully squeezed to ensure the sealing between the butt joint half pipe 11 and the pipeline.

[0040] When the utility model is used specifically, when it is necessary to test the sealing performance of the joint of the pipe flange, the staff will take out the lower sleeve 1 and the upper sleeve 2, and at the same time take out the square sealing gasket 3;

[0041] Then, the staff spliced ​​the strip sealing gaskets 31 at both ends of the square sealing gasket 3 so that they were wrapped around the pipes on both sides of the flange joint, and inserted the docking boss 34 into the clamping groove 32. The spherical protrusion 33 was used to clamp the docking boss 34 into the clamping groove 32, so that the strip sealing gasket 31 wrapped around the pipe. At this time, the strip sealing gasket 31 was in a tight state.

[0042] Then, the staff placed the lower sleeve 1 under the flange joint and moved it upward to wrap the lower part of the flange joint. At the same time, the staff placed the square sealing gasket 3 on the outer pressure plate 1 12. Then, the staff took out the upper sleeve 1 and put it on the upper part of the flange joint, making it dock with the lower sleeve 1, and then the outer pressure plate 2 21 pressed on the square sealing gasket 3.

[0043] Then, the staff aligns the upper sleeve 2 and the lower sleeve 1, takes out the fastening bolts 16 and fastening nuts, and passes the fastening bolts 16 through the bolt holes 15 one by one, and then tightens them with the fastening nuts 17;

[0044] At this time, the outer pressure plate 12 and the outer pressure plate 2 are squeezed to make the square sealing gasket 3 seal the joint of the upper sleeve 2 and the lower sleeve 1 by squeezing. At the same time, the upper sleeve 2 and the lower sleeve 1 are connected by the docking half-tube 11 to wrap the strip sealing gasket 31, and the fastening bolts 16 and the fastening nuts 17 are tightened to squeeze the strip sealing gasket 31, thereby making the docking half-tube 11 and the outer wall of the pipeline in a sealed state. At the same time, the extrusion force is used to make the docking boss 34 squeeze the clamping groove 32, thereby making the gap between the docking boss 34 and the clamping groove 32 disappear due to the extrusion, thereby ensuring that the strip sealing gasket 31 forms a tight annular sealing ring, so that the pipeline and the docking half-tube 11 are sealed.

[0045] Then the water pressure test can be carried out. The staff connects the water injection pipe 13 to the external pumping device, opens the valve 14, and opens the exhaust valve 23 at the same time. The external pumping device is used to inject the test water into the lower sleeve 1 and the upper sleeve 2 through the water injection pipe 13, and the excess air is discharged. When the test water is discharged from the detection tube 22, the exhaust valve 23 is controlled to be closed, and then the water pressure gauge 25 is observed. When the water pressure reaches the set value, the valve 14 is closed, and then a certain period of time is waited. By observing the pressure of the water pressure gauge, the sealing of the joint of the pipe flange is tested.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0047] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe docking detection device for water conservancy construction, characterized in that: include: The lower sleeve is semicircular and is sleeved below the joint of the pipe flange. The joint half pipes are installed at the center of the surface on both sides of the lower sleeve. An external pressure plate is provided on the outer side of the upper end of the lower sleeve. The external pressure plate is installed on both sides of the joint half pipe. The water injection pipe is installed at the center of the lower surface of the lower sleeve. The valve is installed on the water injection pipe. The upper sleeve is semicircular and is sleeved above the joint of the pipe flange and located above the lower sleeve. The same half-pipes are installed at the center of the surfaces on both sides of the upper sleeve. Two external pressure plates are set on the outer side of the upper end. The two external pressure plates are installed on both sides of the half-pipes. A detection tube is installed at the center of the upper surface. An exhaust valve is installed on the detection tube. A detection branch pipe is installed on the detection tube. A water pressure gauge is installed on the detection branch pipe. A square sealing gasket is arranged between the upper sleeve and the lower sleeve, and between the outer pressure plate 1 and the outer pressure plate 2. Strip sealing gaskets are installed at the centers of both sides. The strip sealing gasket is located in the docking half-tube. A clamping groove is provided on the outside of one end of the strip sealing gasket, and a spherical protrusion is provided in the clamping groove. A docking boss is provided at the other end of the strip sealing gasket. The docking boss is movably inserted in the clamping groove and embedded in the spherical protrusion.

2. A pipe docking detection device for water conservancy construction according to claim 1, characterized in that: The strip sealing gasket is wrapped on the outer surface of the pipeline, and the docking boss is clamped into the clamping groove, and then wrapped on the pipeline.

3. A pipe docking detection device for water conservancy construction according to claim 1, characterized in that: One end of the docking boss is a 45° inclined surface, and the clamping groove has the same shape as the docking boss.

4. A pipe docking detection device for water conservancy construction according to claim 1, characterized in that: A plurality of bolt holes are provided on the outer pressure plate 1 and the outer pressure plate 2, and are fastened by fastening bolts and fastening nuts so that the upper sleeve and the lower sleeve are docked.

5. A pipe docking detection device for water conservancy construction according to claim 1, characterized in that: The square sealing gasket is provided with the same bolt holes so that the fastening bolts can pass through the square sealing gasket.

6. A pipe docking detection device for water conservancy construction according to claim 1, characterized in that: The two butted half pipes are joined together with the upper sleeve and the lower sleeve to form a circular pipe, and are sleeved on the pipe.

7. A pipe docking detection device for water conservancy construction according to claim 1, characterized in that: The diameter of the butt-jointed half-pipes is larger than the outer diameter of the pipeline, and the distance between them is smaller than the thickness of the strip sealing gasket.

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