Water supply pipeline pressure test device
By designing a combination device for sealing airbags and inflatable pipes, the problem of pressure testing of the prior art that cannot be applied to large pipe diameters and long pipes is solved, and effective pressure testing and water-saving effects on water supply pipes are achieved.
Patent Information
- Application Number
- CN202420813331.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-19
AI Technical Summary
The existing water supply pipeline pressure test devices are mainly suitable for small pipe diameters and short pipes, and cannot effectively adapt to the pressure test needs of large pipe diameters and long pipes. The structure is complex and laborious, and has requirements for water quality, which increases the complexity of the filter device.
A pressure test device including sealed airbags, inflatable pipes and fixed components is designed. The sealed airbags are placed inside the pipe mouth, and the sealed airbags and water supply pipes are inflated through the inflation pipes and the inflation pump, and the outer pipes, inner pipes and movable inflatable. The components realize the inflation and transmission of gas, and are suitable for pressure testing of large pipes with long diameters.
It realizes effective pressure testing of large pipes with long pipes, saves water resources, simplifies the structure, and does not need to frequently change the connection position of the inflation pipes. It is suitable for pressure testing and leakage testing of large pipes with long pipes.
Smart Images
Figure CN222188735U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline detection, and more specifically, particularly to a water supply pipeline pressure testing device. Background Art
[0002] Water pipes are common facilities for transporting domestic water. During the construction of water supply pipes, welding or fusion is often required for connection. Therefore, during or after construction, in order to ensure the construction quality, the water supply pipes need to be pressure tested to detect the sealing of the water supply pipes, thereby preventing leakage of the water supply pipes.
[0003] The utility model patent with the prior art announcement number CN220305032U discloses a water supply pipeline pressure test device, including a pressure test assembly, the pressure test assembly includes a pressure test water tank and a pressure test pump, the pressure test pump is located above the pressure test water tank and connected to the pressure test water tank, and also includes a filter assembly, the filter assembly includes a first filter plate, the first filter plate is provided with a plurality of holes for filtering impurities in the water, the pressure test assembly also includes a partition connected to the inside of the pressure test water tank, the partition divides the pressure test water tank into two spaces, the water suction end of the pressure test pump extends into the inside of the pressure test water tank and is located on one side of the partition, the bottom of the partition is provided with a water hole, the first filter plate is detachably connected to the side of the partition close to the pressure test pump, and is located below the pressure test pump, so as to achieve the effect of making the pressure test pump not easy to be blocked. However, the device still adopts the pump-driven water pressure method, which is only suitable for short pipes with small diameters, but not for pressure testing of long pipes with large diameters, and the device has requirements for water quality, and the addition of a filter device makes the structure more complicated while being laborious. Utility Model Content
[0004] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.
[0005] A water supply pipe pressure test device includes a sealing airbag, an inflation pipe and a fixing assembly. The sealing airbag is arranged at the inner side of the pipe mouth of the water supply pipe, and can seal the pipe mouth after being inflated. One end of the inflation pipe passes through the sealing airbag and extends into the water supply pipe, and the other end is connected to an inflation pump, and the inflation pipe can selectively inflate the sealing airbag and the water supply pipe. The fixing assembly includes a fixed end cover covering the pipe mouth and fixing bolts arranged in an annular array around the fixed end cover, the fixed end cover is provided with a first through hole, and the fixing bolts movably pass through the side wall of the fixed end cover and abut against the outer side of the water supply pipe.
[0006] Furthermore, the inflation pipe includes an outer tube, an inner tube, a second inflation port and an active inflation tube assembly. The outer tube is fixedly passed through the sealing airbag, and its two ends are respectively located on the inner and outer sides of the water supply pipe. The inner tube is arranged on the inner side of the outer tube, and one end away from the outer side of the water supply pipe is closed with the outer tube, and the other end is provided with a first inflation port. A first inflation cavity is formed between the inner tube and the outer tube, and a second inflation cavity is formed on the inner side of the inner tube. The second inflation port is provided on the side wall of the outer tube, connecting the first inflation cavity and the sealing airbag. The active inflation tube assembly is detachably connected to the outer tube, and can selectively inflate the first inflation cavity and the second inflation cavity.
[0007] Furthermore, the movable inflation tube assembly includes a quick connector, a fixed tube and a central tube; the quick connector is detachably connected to the outer tube; the fixed tube is arranged at one end of the quick connector away from the outer tube; the central tube passes through the quick connector and the fixed tube, an inflation hole is opened at one end, and the other end is connected to the inflation pump, and the inflation hole can be selectively connected to the first inflation cavity and the second inflation cavity.
[0008] Furthermore, a first sealing ring is provided on the inner side of one end of the outer tube close to the outer side of the water supply pipe, and a tapered mouth is provided on one end of the inner tube close to the outer side of the water supply pipe. The inner diameter of the tapered mouth gradually increases in the direction close to the center tube, and a second sealing ring is provided on the inner wall of the tapered mouth. The inflation end of the center tube has a tapered structure, and the inflation hole is opened on the side wall of the inflation end. The center tube moves axially in the fixed tube, and the inflation hole can be selectively located on both sides of the second sealing ring.
[0009] Furthermore, a handle is rotatably connected to the outer side of the central tube, and the fixed tube is provided with a second through hole through which the handle passes and rotates.
[0010] Furthermore, a first fixing ring and a second fixing ring are arranged between the fixing tube and the center tube, and the first fixing ring and the second fixing ring are fixed to the fixing tube and the center tube respectively, and a spring is arranged between the first fixing ring and the second fixing ring.
[0011] Furthermore, the inner diameter of the first fixing ring is matched with the outer diameter of the central tube.
[0012] Furthermore, the inner diameter of the second sealing ring is smaller than the outer diameter of the central tube on the side of the inflation hole away from the fixing tube.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] The utility model discloses a water supply pipe pressure testing device, wherein a sealing air bag is placed inside the pipe mouth, and a fixed end cover is fixed to the outside of the pipe mouth by fixing bolts, thereby preventing the sealing air bag from falling out from the inside of the pipe mouth. By inflating the sealing air bag, a seal is formed inside the water supply pipe, and the inside of the water supply pipe is inflated and pressurized, thereby performing pressure testing and leak detection, which saves water resources and is suitable for pressure testing of large-diameter and long pipes.
[0015] The water supply pipe pressure testing device in the utility model is provided with an outer tube, an inner tube and a movable inflation component. The first inflation chamber is inflated through the movable inflation component, and the gas enters the sealing airbag through the second inflation port to inflate the sealing airbag. The second inflation chamber is inflated through the movable inflation component, and the gas enters the water supply pipe through the outer tube to test the water supply pipe pressure. Only one inflation pump is needed, and the sealing airbag and the water supply pipe can be inflated without changing the connection position of the inflation pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] 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:
[0017] Figure 1 It is a schematic diagram of the overall structure of a water supply pipe pressure testing device in an embodiment of the utility model.
[0018] Figure 2 It is a cross-sectional view of a water supply pipe pressure testing device in an embodiment of the utility model.
[0019] Figure 3 It is a cross-sectional view of the inflation pipe in the embodiment of the utility model.
[0020] Figure 4 It is a cross-sectional view of the inflation pipe in the embodiment of the utility model from another angle.
[0021] Figure 5 It is a cross-sectional view of the inflation pipe in another state in the embodiment of the utility model.
[0022] In the figure: 1. Sealing airbag; 2. Water supply pipe; 3. Fixed end cover; 4. Fixed bolt; 5. First through hole; 6. Outer tube; 7. Inner tube; 8. First inflation port; 9. First inflation cavity; 10. Second inflation cavity; 11. Second inflation port; 12. Quick connector; 13. Fixed cylinder; 14. Center tube; 15. Inflation hole; 16. First sealing ring; 17. Conical mouth; 18. Second sealing ring; 19. Handle; 20. Second through hole; 21. First fixing ring; 22. Second fixing ring; 23. Spring; 24. Pressure gauge. DETAILED DESCRIPTION
[0023] 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.
[0024] like Figure 1-Figure 5 As shown, the pressure testing device for the water supply pipe 2 in this embodiment includes a sealing airbag 1, an inflation pipe and a fixing component. The sealing airbag 1 is arranged at the inner side of the pipe mouth of the water supply pipe 2, and can seal the pipe mouth after being inflated. One end of the inflation pipe passes through the sealing airbag 1 and extends into the water supply pipe 2, and the other end is connected to an inflation pump. The inflation pipe can selectively inflate the sealing airbag 1 and the water supply pipe 2. The fixing component includes a fixed end cover 3 covering the pipe mouth and fixing bolts 4 arranged in a ring array around the fixed end cover 3. The fixed end cover 3 is provided with a first through hole 5 for the inflation pipe to pass through. The fixing bolts 4 movably pass through the side wall of the fixed end cover 3 and abut against the outer side of the water supply pipe 2.
[0025] In this embodiment, the inflation pipe includes an outer pipe 6, an inner pipe 7, a quick connector 12, a fixing tube 13 and a central pipe 14. The outer pipe 6 is fixedly passed through the sealing airbag 1, and the two ends of the outer pipe 6 are respectively located at the inner and outer sides of the water supply pipe 2. The inner pipe 7 is arranged inside the outer pipe 6, and one end of the inner pipe 7 away from the outer side of the water supply pipe 2 is sealed with the outer pipe 6, and the other end is provided with a first inflation port 8, a first inflation cavity 9 is formed between the inner pipe 7 and the outer pipe 6, and a second inflation cavity 10 is formed inside the inner pipe 7. A second inflation port 11 is opened on the side wall of the outer pipe 6, and the second inflation port 11 connects the first inflation cavity 9 with the sealing airbag 1.
[0026] A first sealing ring 16 is provided on the inner side of one end of the outer tube 6 close to the outside of the water supply pipe, and a tapered mouth 17 is provided on the end of the inner tube 7 close to the outside of the water supply pipe. The inner diameter of the tapered mouth 17 gradually increases in the direction close to the outside of the pipe mouth, and a second sealing ring 18 is provided on the inner wall of the tapered mouth 17.
[0027] The quick connector 12 is detachably connected to the outer tube 6. Specifically, the quick connector 12 can be an existing gas quick connector. The corresponding outer tube 6 and the quick connector 12 are connected to a corresponding structure. The fixed tube 13 is arranged at the end of the quick connector 12 away from the outer tube 6. The central tube 14 runs through the quick connector 12 and the fixed tube 13. An inflation hole 15 is opened at one end, and the other end is connected to the inflation pump. Specifically, the inflation end of the central tube 14 is a conical structure. The inflation end of the central tube 14 gradually increases in the direction close to the fixed tube 13. The inflation hole 15 is opened on the side wall of the inflation end conical structure. The central tube 14 moves axially in the fixed tube 13. The inflation hole 15 can be selectively located on both sides of the second sealing ring 18. The inner diameter of the second sealing ring 18 is smaller than the outer diameter of the central tube 14 on the side of the inflation hole 15 away from the fixed tube 13, so that the inflation hole 15 can be selectively connected to the first inflation chamber 9 and the second inflation chamber 10 and form a seal when inflated, so as to inflate the sealed airbag 1 and the water supply pipe 2.
[0028] In this embodiment, a handle 19 is rotatably connected to the outside of the central tube 14, and the fixed tube 13 is provided with a second through hole 20 through which the handle 19 passes and rotates. Specifically, a hinge shaft is provided on the outside of the central tube 14, and the end of the handle 19 is rotatably connected to the central tube 14 through the hinge shaft, so that the central tube 14 can be moved axially by swinging the handle 19. A first fixing ring 21 and a second fixing ring 22 are arranged between the fixed tube 13 and the central tube 14, and the first fixing ring 21 and the second fixing ring 22 are fixedly connected to the fixed tube 13 and the central tube 14 respectively, and a spring 23 is arranged between the first fixing ring 21 and the second fixing ring 22, and the two ends of the spring 23 are fixedly connected to the first fixing ring 21 and the second fixing ring 22 respectively. The inner diameter of the first fixing ring 21 is adapted to the outer diameter of the central tube 14, and the inner diameter of the first fixing ring 21 is slightly larger than the outer diameter of the central tube 14.
[0029] In this embodiment, the fixed end cap 3 is a circular structure, the inner diameter of the fixed end cap 3 is larger than the outer diameter of the water supply pipe 2, and a plurality of fixing bolts 4 are distributed in a circular array. The fixing bolts 4 are spirally penetrated through the side wall of the fixed end cap 3 and abut against the outer side of the water supply pipe 2, so as to adapt to water supply pipes 2 of different diameters. A pressure gauge 24 is also provided at one end of the outer pipe 6 located outside the pipe opening, and the pressure gauge 24 is connected to the second inflation chamber 10. The first sealing ring 16 and the second sealing ring 18 are made of rubber.
[0030] The working principle of the water supply pipe 2 pressure test device in this embodiment is:
[0031] The sealing airbag 1 is placed on the inner side of the pipe mouth, and the fixed end cover 3 is fixed to the outer side of the pipe mouth by the fixing bolts 4, so as to prevent the sealing airbag 1 from escaping from the inner side of the pipe mouth. By inflating the sealing airbag 1, a seal is formed on the inner side of the water supply pipe, and the inner side of the water supply pipe 2 is inflated and pressurized to perform pressure testing and leak detection, which saves water resources and is suitable for pressure testing of large-diameter and long pipes. By setting the outer tube 6, the inner tube 7, the quick connector 12, the fixed tube 13 and the center tube 14, and by swinging the handle 19, the inflation hole 15 is located between the first sealing ring 16 and the second sealing ring 18, and the center tube 14 inflates the first inflation chamber 9, and the gas enters the sealing airbag 1 through the second inflation port 11 to inflate the sealing airbag 1; by swinging the handle 19 in the opposite direction, the inflation hole 15 is located on the inner side of the second sealing ring 18, and the center tube 14 inflates the second inflation chamber 10, and the gas enters the water supply pipe 2 through the outer tube 6, and the water supply pipe 2 is pressure tested. Only one inflation pump is needed, and the sealing airbag 1 and the water supply pipe 2 can be inflated without changing the connection position of the inflation tube.
[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 water supply pipeline pressure testing device, characterized in that: include: A sealing airbag (1), the sealing airbag (1) being arranged inside the pipe opening of the water supply pipe (2) and capable of sealing the pipe opening after being inflated; An inflation pipe, one end of which passes through the sealing airbag (1) and extends into the water supply pipe (2), and the other end of which is connected to an inflation pump, and the inflation pipe can selectively inflate the sealing airbag (1) and the water supply pipe (2); A fixing assembly, the fixing assembly comprising a fixing end cover (3) covering the pipe mouth and fixing bolts (4) arranged in an annular array on the circumference of the fixing end cover (3), the fixing end cover (3) being provided with a first through hole (5), the fixing bolts (4) movably passing through the side wall of the fixing end cover (3) and abutting against the outer side of the water supply pipe (2).
2. The water supply pipeline pressure testing device according to claim 1, characterized in that: The inflation pipe comprises: An outer tube (6), the outer tube (6) is fixedly passed through the sealing airbag (1), and two ends are respectively located at the inner and outer sides of the water supply pipe (2); An inner tube (7), the inner tube (7) being arranged inside the outer tube (6), one end of the inner tube (7) being away from the outside of the water supply pipe (2) being sealed with the outer tube (6), and the other end of the inner tube (7) being provided with a first inflation port (8), a first inflation cavity (9) being formed between the inner tube (7) and the outer tube (6), and a second inflation cavity (10) being formed inside the inner tube (7); A second inflation port (11), the second inflation port (11) being provided on the side wall of the outer tube (6) and connecting the first inflation cavity (9) and the sealing airbag (1); A movable inflatable tube assembly is detachably connected to the outer tube (6) and can selectively inflate the first inflatable cavity (9) and the second inflatable cavity (10).
3. The water supply pipeline pressure testing device according to claim 2, characterized in that: The movable inflatable tube assembly comprises a quick connector (12), a fixing tube (13) and a central tube (14); the quick connector (12) is detachably connected to the outer tube (6); the fixing tube (13) is arranged at one end of the quick connector (12) away from the outer tube (6); the central tube (14) passes through the quick connector (12) and the fixing tube (13), one end of the central tube is provided with an inflation hole (15), and the other end is connected to the inflation pump, and the inflation hole (15) can be selectively connected to the first inflation chamber (9) and the second inflation chamber (10).
4. The water supply pipeline pressure testing device according to claim 3, characterized in that: A first sealing ring (16) is arranged on the inner side of one end of the outer tube (6) close to the outer side of the water supply pipe, and a conical mouth (17) is arranged on the inner side of the inner tube (7) close to the outer side of the water supply pipe. The inner diameter of the conical mouth (17) gradually increases in the direction close to the center tube (14). A second sealing ring (18) is arranged on the inner wall of the conical mouth (17). The inflation end of the center tube (14) is of a conical structure. The inflation hole (15) is opened on the side wall of the inflation end. The center tube (14) moves axially in the fixing tube (13). The inflation hole (15) can be selectively located on both sides of the second sealing ring (18).
5. The water supply pipeline pressure testing device according to claim 4, characterized in that: The outer side of the central tube (14) is rotatably connected to a handle (19), and the fixed tube (13) is provided with a second through hole (20) through which the handle (19) passes and rotates.
6. The water supply pipeline pressure testing device according to claim 5, characterized in that: A first fixing ring (21) and a second fixing ring (22) are arranged between the fixing tube (13) and the center tube (14), and the first fixing ring (21) and the second fixing ring (22) are fixed to the fixing tube (13) and the center tube (14) respectively, and a spring (23) is arranged between the first fixing ring (21) and the second fixing ring (22).
7. The water supply pipeline pressure testing device according to claim 6, characterized in that: The inner diameter of the first fixing ring (21) is matched with the outer diameter of the central tube (14).
8. The water supply pipeline pressure testing device according to claim 4, characterized in that: The inner diameter of the second sealing ring (18) is smaller than the outer diameter of the central tube (14) on the side of the inflation hole (15) away from the fixing tube (13).
Citation Information
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