Pipeline hydraulic test equipment

Abstract

The present invention discloses a pipeline water pressure test device, which relates to the technical field of water pressure test. The present invention comprises: a mounting frame, on one side of which a first mounting plate is rotatably mounted. The present invention drives the connecting rod to slide through a third driving member, so that the water in the lower pipeline generates a fluid shock wave at its end, that is, at the flow channel, under the action of a cylindrical block, to simulate the water hammer phenomenon, and through the compressed air inside the upper pipeline to simulate the water hammer eliminator, the water flow in the pipeline is buffered and adjusted to reduce the influence of the water hammer phenomenon on the pipeline, and after completing the impact test, the two connected pipelines can be injected with water through the water injection pipe to pressurize and exhaust the air therein, and then the two pipelines are separated by a plugging member, so that the two pressure detection mechanisms can respectively detect the water pressure in the two pipelines. Compared with the prior art, the present invention can simulate the fluid shock wave test on the pipeline, and can also test the pressure bearing capacity and sealing performance of the pipeline by static pressurization, which is more convenient and easy to use.

Description

Technical Field

[0001] The invention relates to the technical field of water pressure testing, and in particular to a pipeline water pressure testing device. Background Art

[0002] The pipelines that need to be subjected to water pressure testing mainly include pressure pipelines and pressure pipelines. Pressure pipelines refer to pipelines that can withstand internal pressure and are usually used to transport liquids or gases. During the production process of such pipelines, it is necessary to use a pipeline water pressure testing device to seal both ends of the pipe body to form a closed cavity, and use a pressure test pump to inject water into the pipe body and exhaust the air. Then, a secondary pressurized water injection is performed, and the pipeline is maintained for a period of time and observed to detect the pipeline's pressure-bearing capacity and sealing performance to ensure that the pipeline can withstand the expected pressure without leakage during use.

[0003] However, a pipeline system is usually composed of multiple pipelines and valves. When the valve is suddenly closed or opened, the internal pressure of the pipeline changes rapidly under the action of fluid inertia, and a fluid shock wave is generated, which has a destructive effect on the valve and the inner wall of the pipeline at that location, that is, the water hammer effect. Although the water hammer phenomenon can be effectively alleviated by installing a water hammer eliminator at that location, the device cannot completely eliminate the water hammer effect, and the pipeline will still be subjected to a part of the fluid shock wave. Therefore, it is necessary to perform a simulation test on the pipeline, while the traditional pipeline water pressure test device adopts a static pressurization method and cannot perform a simulation test on the fluid shock wave. In order to reasonably improve this problem, the present invention proposes a pipeline water pressure test device. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that a pipeline system is usually composed of multiple pipelines and valves. When the valve is suddenly closed or opened, the internal pressure of the pipeline changes rapidly under the action of fluid inertia, and a fluid shock wave is generated, which has a destructive effect on the valve and the inner wall of the pipeline at that location, that is, the water hammer effect. Although the water hammer phenomenon can be effectively alleviated by installing a water hammer eliminator at that location, the device cannot completely eliminate the water hammer effect, and the pipeline will still be subjected to a part of the fluid shock wave. Therefore, it is necessary to perform a simulation test on the pipeline, while the traditional pipeline water pressure test device adopts a static pressurization method and cannot perform a simulation test on the fluid shock wave. This technical problem, the present invention provides a pipeline water pressure test device.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] Pipeline water pressure testing device, including:

[0007] A mounting frame, one side of which is rotatably mounted with a first mounting plate, a second mounting plate is splined on the first mounting plate, and the second mounting plate is movably matched with the mounting frame, a first driving member is provided on the first mounting plate, which is used to drive the second mounting plate away from the first mounting plate, and a second driving member is installed on the mounting frame, which is used to drive the first mounting plate to rotate;

[0008] A flow channel is provided on a first mounting plate, two first annular pads are installed on the first mounting plate, and two second annular pads are installed on the second mounting plate in cooperation therewith. Through holes are provided at both ends of the flow channel and are respectively connected to the inner sides of the two first annular pads. A plugging member for cutting off the flow channel is provided in the flow channel;

[0009] Two pressure detection mechanisms are respectively arranged at both ends of the flow channel;

[0010] The water injection pipe and the liquid outlet pipe are both installed on the second installation plate, and the water injection pipe and the liquid outlet pipe are both connected to the inner side of one of the first annular gaskets;

[0011] The two connecting rods slide through the inner sides of the two second annular gaskets respectively, and the ends of the connecting rods are both constructed with cylindrical blocks. The second mounting plate is equipped with a third driving member, which can drive the two connecting rods to slide synchronously.

[0012] Furthermore, an annular ring is provided on the outer side of the first annular pad and the second annular pad, and the multiple annular rings are rotatably matched with the first mounting plate and the second mounting plate respectively, and arc plates are constructed on the opposite sides of the annular rings on both sides, and an insert plate is constructed at the end of the arc plate on one side, and the arc plate on the other side is slidably plugged with the insert plate, and multiple balls are evenly distributed on the inner side of the ring of the arc plate.

[0013] Furthermore, the number of the flow channels is two.

[0014] Furthermore, the blocking member includes a back plate slidably installed in the flow channel, annular sealing gaskets for covering the through holes are installed at both ends of the back plate, two pressure detection mechanisms are respectively arranged on the inner sides of the annular sealing gasket rings, and a first plug rod is vertically connected to the back plate, which cooperates with the flow channel piston, and multiple ends of the first plug rods pass through the flow channel and are connected through a first connecting plate. A fourth driving member for driving the first connecting plate to move is provided on the first mounting plate.

[0015] Furthermore, arc surfaces are constructed on both sides of the abutment plate, and the flow channels are located on the inner sides of the two arc surfaces relative to the inner wall.

[0016] Furthermore, the number of the first plug rods is two, and they are respectively located on the two through-hole axes; the pressure detection mechanism includes a second plug rod, the second plug rod slides through the first plug rod and cooperates with the first plug rod piston; a water pressure sensor is installed at the end of the second plug rod, and multiple second plug rod ends are connected by a second connecting plate; the fourth driving member is a multi-stage electric push rod, a fixed section thereof is connected to the first mounting plate, and a first movable section and a second movable section thereof are respectively connected to the first connecting plate and the second connecting plate.

[0017] Furthermore, a receiving groove is formed at the end of the second plug rod, the water pressure sensor is installed in the receiving groove, water inlet holes are formed on both sides of the receiving groove, and a cover plate is connected to the end of the second plug rod.

[0018] Furthermore, a plurality of cylindrical grooves are constructed on the second mounting plate and are respectively connected to the inner sides of a plurality of second annular gaskets, and the water injection pipe and the liquid outlet pipe are connected to the bottom sides of the lower cylindrical grooves.

[0019] Furthermore, the third driving member includes a third connecting plate, and multiple connecting rods are connected through the third connecting plate. A sleeve is rotatably installed on the outer side of the second mounting plate. The third connecting plate is threadedly matched with the outer side of the sleeve. A driving motor is installed on the second mounting plate, and its output end is connected to the sleeve through a gear assembly.

[0020] Furthermore, both ends of the cylindrical block are symmetrically configured with inclined surfaces, and the outer diameter of the inclined surfaces gradually decreases from the middle of the cylindrical block toward the end thereof.

[0021] The beneficial effects of the present invention are as follows: the present invention drives the connecting rod to slide through the third driving member, so that the water in the lower pipe generates a fluid shock wave at its end, that is, the flow channel, under the action of the cylindrical block, to simulate the water hammer phenomenon, and the compressed air inside the upper pipe simulates the water hammer eliminator to buffer and adjust the water flow in the pipe, thereby reducing the impact of the water hammer phenomenon on the pipe. After completing the impact experiment, the two connected pipes can be injected with water and pressurized through the water injection pipe and the air inside can be discharged, and then the two pipes can be separated by the sealing member, so that the two pressure detection mechanisms can respectively detect the water pressure in the two pipes. Compared with the prior art, the present invention can perform a simulation test of the fluid shock wave on the pipe, and can also test the pressure bearing capacity and sealing performance of the pipe by static pressurization, which is more convenient and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 The present invention Figure 1 A partial structural cross-sectional view;

[0024] Figure 3The present invention Figure 2 A magnified image of point A;

[0025] Figure 4 The present invention Figure 2 The enlarged view of point B;

[0026] Figure 5 It is a partial three-dimensional structural cross-sectional view of the present invention;

[0027] Figure 6 is a cross-sectional view of the internal structure of the flow channel of the present invention in a conducting state;

[0028] Figure 7 The present invention Figure 6 Enlarged view of point C;

[0029] Figure 8 is a cross-sectional view of the internal structure of the present invention in a state where the flow channel is cut off;

[0030] Fig. 9 The present invention Figure 8 The enlarged view of point D;

[0031] Figure numerals: 1, mounting frame; 101, horizontal plate; 102, vertical plate; 2, first mounting plate; 3, second mounting plate; 4, first driving member; 5, second driving member; 6, flow channel; 7, first annular pad; 8, second annular pad; 9, through hole; 10, blocking member; 1001, abutment plate; 1002, annular sealing pad; 1003, first plug rod; 1004, first connecting plate; 1005, fourth driving member; 10051, fixed section; 10052, first movable section; 10053, second movable section; 11, pressure detection mechanism; 110 1. Second plug rod; 1102. Water pressure sensor; 1103. Second connecting plate; 12. Water injection pipe; 13. Liquid outlet pipe; 14. Connecting rod; 15. Cylindrical block; 16. Third driving member; 1601. Third connecting plate; 1602. Sleeve; 1603. Driving motor; 1604. Gear assembly; 17. Annular ring; 18. Arc plate; 19. Insert plate; 20. Ball; 21. Arc surface; 22. Accommodating groove; 23. Water inlet hole; 24. Cover plate; 25. Column groove; 26. Inclined surface; 27. Sleeve; 28. Prism; 29. ​​Shaft. DETAILED DESCRIPTION

[0032] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0033] like Figure 1-Figure 9 As shown, a pipeline water pressure testing device provided in one embodiment of the present invention comprises:

[0034] Mounting frame 1, such as Figure 1 As shown, it is composed of a horizontal plate 101 and two vertical plates 102, one side of which is rotatably mounted with a first mounting plate 2, which is located on one of the vertical plates 102, and the first mounting plate 2 is splined with a second mounting plate 3, and the first mounting plate 2 and the second mounting plate 3 are respectively connected to the opposite sides with a sleeve 27 and a prism 28, and the two are slidably plugged, and the sleeve 27 and the prism 28 are located on the rotating shaft of the first mounting plate 2 and the second mounting plate 3, so that the second mounting plate 3 can rotate with the first mounting plate 2, and the second mounting plate 3 is movably matched with the mounting frame 1, and the outer side of the second mounting plate 3 is constructed with a shaft 29, and the shaft 29 runs through another vertical plate 102. A first driving member 4 is provided on the first mounting plate 2, which is used to drive the second mounting plate 3 away from the first mounting plate 2. The first driving member 4 is a screw motor installed in the sleeve 27, and its output end is threadedly matched with the prism 28. When the first driving member 4 works, it can drive the second mounting plate 3 to move. A second driving member 5 is installed on the mounting frame 1, which is used to drive the first mounting plate 2 to rotate. The second driving member 5 is a servo motor, and its output end is connected to the first mounting plate 2. When the servo motor works, it can drive the first mounting plate 2 and the second mounting plate 3 to rotate together.

[0035] The flow channel 6 is arranged on the first mounting plate 2. Two first annular pads 7 are installed on the first mounting plate 2. The two first annular pads 7 are staggered with the sleeve 27. The second mounting plate 3 is matched with two second annular pads 8. The first annular pad 7 and the second annular pad 8 are both rubber pads, and their inner diameters are larger than the inner diameter of the pipe. The inner diameter of the flow channel 6 is smaller than the inner diameter of the pipe. When the second mounting plate 3 moves toward the first mounting plate 2, the first annular pad 7 and the second annular pad 8 can respectively contact the edges at both ends of the two pipes and clamp and fix the pipes. Through holes 9 are provided at both ends of the flow channel 6, and are respectively connected with the inner sides of the two first annular pads 7. The two fixed pipes can be connected through the flow channel 6. A plugging member 10 for cutting off the flow channel 6 is provided in the flow channel 6. The two pipes can be separated by driving the plugging member 10 to make them disconnected from each other.

[0036] Two pressure detection mechanisms 11 are respectively arranged at the two ends of the flow channel 6, and the water pressure in the two pipes can be detected by the pressure detection mechanisms 11;

[0037] The water injection pipe 12 and the liquid outlet pipe 13 are both connected by electromagnetic valves to control whether they are connected. The water injection pipe 12 is connected to the existing pressure test pump and is installed on the second mounting plate 3. The water injection pipe 12 and the liquid outlet pipe 13 are both connected to the inner side of one of the first annular pads 7.

[0038] Two connecting rods 14 slide through the inner sides of the two second annular gaskets 8 respectively. The connecting rods 14 cooperate with the piston of the second mounting plate 3, and the ends of the connecting rods 14 are both constructed with cylindrical blocks 15. When fixing the pipeline, the cylindrical blocks 15 can be inserted into the pipeline. It should be specifically stated that the outer diameter of the cylindrical blocks 15 is slightly smaller than the inner diameter of the pipeline. A third driving member 16 is installed on the second mounting plate 3, and the two connecting rods 14 can be driven to slide synchronously through the third driving member 16;

[0039] When using, Figure 6 As shown, the second mounting plate 3 is driven by the first driving member 4 to move toward the first mounting plate 2 to clamp the two pipes. At this time, the two pipes are connected through the flow channel 6. At this time, the first annular pad 7 connected with the water injection pipe 12 and the liquid outlet pipe 13 is located below. Subsequently, when the liquid outlet pipe 13 is in a closed state, water can be injected into the pipe through the water injection pipe 12, and the air inside it can be squeezed into the other pipe and compressed. Then, the two connecting rods 14 can be driven to slide synchronously by the third driving member 16, and the cylindrical block 15 can be driven to slide quickly in the pipe. At this time, a small part of the water can move to the other side of the cylindrical block 15 through the gap between the cylindrical block 15 and the pipe, and most of the water can move toward the flow channel 6 under the push of the cylindrical block 15, and generate a fluid shock wave at the flow channel 6, thereby simulating the water hammer phenomenon, and the cylindrical block 15 has an impact on the pressure in the upper pipe. The influence of compressed air is small. The water flow in the pipeline can be buffered and adjusted by compressed air, thereby reducing the influence of water hammer on the pipeline, thereby simulating a pipeline with a water hammer eliminator. After completing the impact test of the bottom pipeline, the first mounting plate 2 and the second mounting plate 3 can be driven to rotate together by the second driving member 5 to rotate the pipeline that has not completed the experiment to the bottom. Subsequently, the air inside it floats up, and the water in the other pipeline enters the pipeline that has not completed the experiment through the flow channel 6. By repeating the above operation, an impact test can be performed on it. After completing the impact test of the two pipelines, the liquid outlet pipe 13 and the water injection pipe 12 are opened. While filling the two pipelines with water, the air inside the pipeline is discharged through the liquid outlet pipe 13, and the liquid outlet pipe 13 is closed when water is discharged from the liquid outlet pipe 13. Finally, the two connected pipelines can be injected with water and pressurized through the water injection pipe 12. After pressurization, as shown in FIG. Figure 8 As shown, the two pipelines are separated by a plugging member 10, and the water pressure in the two pipelines is respectively detected by two pressure detection mechanisms 11 to detect the pressure bearing capacity and sealing performance of the pipelines after the simulation test;

[0040] The present invention drives the connecting rod 14 to slide through the third driving member 16, so that the water in the lower pipe generates a fluid shock wave at its end, that is, the flow channel 6, under the action of the cylindrical block 15, to simulate the water hammer phenomenon, and the compressed air inside the upper pipe simulates the water hammer eliminator to buffer and regulate the water flow in the pipe, thereby reducing the influence of the water hammer phenomenon on the pipe. After completing the impact experiment, the two connected pipes can be injected with water and pressurized through the water injection pipe 12 and the air inside can be discharged, and then the two pipes can be separated by the sealing member 10, so that the two pressure detection mechanisms 11 can respectively detect the water pressure in the two pipes. Compared with the prior art, the present invention can perform a simulation test of the fluid shock wave on the pipe, and can also test the pressure bearing capacity and sealing performance of the pipe by static pressurization, which is more convenient and easy to use.

[0041] like Figure 2-Figure 5 As shown, in some embodiments, an annular ring 17 is provided on the outer side of the first annular pad 7 and the second annular pad 8, and multiple annular rings 17 are rotatably matched with the first mounting plate 2 and the second mounting plate 3 respectively, and arc plates 18 are constructed on the opposite sides of the annular rings 17 on both sides, and the arc plates 18 are close to the outer sides of the annular rings 17. Under the action of gravity, no matter to what angle the first mounting plate 2 and the second mounting plate 3 are rotated, the arc plates 18 are close to the ground, and an insert plate 19 is constructed at the end of the arc plate 18 on one side, and the arc plate 18 on the other side is slidably plugged with the insert plate 19. Multiple balls 20 are evenly distributed on the inner side of the ring of the arc plate 18. The balls 20 can reduce the friction resistance between the pipeline and the arc plate 18 when the second mounting plate 3 moves. With this design, when the pipeline is placed on the arc plate 18 at the top, the first mounting plate 2 and the second mounting plate 3 can be driven to rotate together by the second driving member 5, and during the rotation process, the pipeline will not be separated from the arc plate 18, thereby facilitating the fixing and removal of the pipeline.

[0042] like Figure 2 , Figure 6 and Figure 8 As shown, in some embodiments, the number of flow channels 6 is two and they are not connected to each other. Figure 6 As shown, two flow channels 6 are symmetrically arranged on both sides of the rotating shaft of the first mounting plate 2, that is, four pipes are distributed in a ring shape on the outside of the sleeve 27 and the prism 28. By increasing the number of flow channels 6, on the one hand, the number of test pipes can be increased to improve the test efficiency of the device, and on the other hand, the first mounting plate 2 and the second mounting plate 3 can be dynamically balanced to facilitate their rotation.

[0043] like Figure 2 , Figure 4 , Figure 6 , Figure 7 , Figure 8 and Fig. 9As shown, in some embodiments, the blocking member 10 includes a plate 1001 slidably mounted in the flow channel 6, an annular sealing gasket 1002 for covering the through hole 9 is installed at both ends of the plate 1001, the annular sealing gasket 1002 is a rubber gasket, and two pressure detection mechanisms 11 are respectively arranged on the inner side of the annular sealing gasket 1002 ring. When the plate 1001 moves toward the pipeline direction, the annular sealing gasket 1002 covers the through hole 9, and the two pipelines can be separated. Subsequently, the water pressure in the two pipelines can be detected by the two pressure detection mechanisms 11 respectively. A first plug rod 1003 is vertically connected to the plate 1001, which cooperates with the piston of the flow channel 6, such as Figure 8 As shown, this can prevent water from seeping out of the flow channel 6. The ends of multiple first plug rods 1003 pass through the flow channel 6 and are connected through a first connecting plate 1004. The first mounting plate 2 is provided with a fourth driving member 1005 for driving the first connecting plate 1004 to move. Through the fourth driving member 1005 and the first connecting plate 1004, the abutment plates 1001 in the two flow channels 6 can be driven to move synchronously.

[0044] like Figure 3 , Figure 4 and Figure 6 As shown, in some embodiments, arc surfaces 21 are constructed on both sides of the anti-plate 1001, and the relative inner walls of the flow channel 6 are respectively located on the inner sides of the arcs of the two arc surfaces 21, that is, there is a gap between the anti-plate 1001 and the relative inner walls of the flow channel 6. With such a design, when the anti-plate 1001 moves, the water in the flow channel 6 can move from the gap to the other side of the flow channel 6, thereby reducing the resistance encountered by the anti-plate 1001 when it slides.

[0045] like Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, in some embodiments, the number of first plug rods 1003 is two, and they are respectively located on the axes of the two through holes 9. The pressure detection mechanism 11 includes a second plug rod 1101, which slides through the first plug rod 1003 and cooperates with the piston of the first plug rod 1003. Figure 6 As shown, this can prevent water in the flow channel 6 from seeping out from there. A water pressure sensor 1102 is installed at the end of the second plug rod 1101. The ends of multiple second plug rods 1101 are connected by a second connecting plate 1103. This design can drive the four second plug rods 1101 to move synchronously. The fourth driving member 1005 is a multi-stage electric push rod, and the fixed section 10051 on it is connected to the first mounting plate 2, and the first movable section 10052 and the second movable section 10053 on it are respectively connected to the first connecting plate 1004 and the second connecting plate 1103, as shown in FIG. Figure 6As shown, when the first movable section 10052 and the second movable section 10053 of the fourth driving member 1005 are both in the extended state, the stop plate 1001 is away from the through hole 9, and the second insertion rod 1101 is retracted into the first insertion rod 1003, as shown in FIG. Figure 8 As shown, when the first movable section 10052 and the second movable section 10053 of the fourth driving member 1005 are both in the retracted state, the plate 1001 blocks the through hole 9. At this time, the second plug rod 1101 can extend out of the first plug rod 1003 and be inserted into the pipeline to facilitate the detection of pipeline water pressure.

[0046] like Figure 8 and Fig. 9 As shown, in some embodiments, a receiving groove 22 is provided at the end of the second plug rod 1101, and the receiving groove 22 is coaxial with the second plug rod 1101. The water pressure sensor 1102 is installed in the receiving groove 22. Water inlet holes 23 are provided on both sides of the receiving groove 22. A cover plate 24 is connected to the end of the second plug rod 1101. The cover plate 24 is vertically connected to the second plug rod 1101 and blocks the receiving groove 22. With such a design, when the second plug rod 1101 is retracted into the first plug rod 1003, the cover plate 24 can be tightly abutted against the abutment plate 1001. When conducting a simulation test of a fluid shock wave, the water pressure sensor 1102 can be protected so that it is not easily damaged.

[0047] like Figure 2 and Figure 3 As shown, in some embodiments, a plurality of cylindrical grooves 25 are constructed on the second mounting plate 3, and are respectively connected with the inner sides of the plurality of second annular gaskets 8, the inner diameter of the cylindrical groove 25 is equal to the inner diameter of the second annular gasket 8, and the cylindrical block 15 can be accommodated by the cylindrical groove 25. With such a design, when fixing and removing the pipeline, the cylindrical block 15 is not easily hit and damaged, and the water injection pipe 12 and the liquid outlet pipe 13 are connected with the bottom side of the lower cylindrical groove 25. With such a design, as the second mounting plate 3 rotates, when the liquid outlet pipe 13 moves to the top of the device, the air in the pipeline can be completely discharged by opening the liquid outlet pipe 13, and when the liquid outlet pipe 13 moves to the bottom of the device, the water in the pipeline can be completely discharged by opening the liquid outlet pipe 13.

[0048] like Figure 1 , Figure 2 and Figure 5As shown, in some embodiments, the third driving member 16 includes a third connecting plate 1601, and multiple connecting rods 14 are connected through the third connecting plate 1601. A sleeve 1602 is rotatably installed on the outer side of the second mounting plate 3, and the sleeve 1602 is rotatably installed on the shaft 29. The third connecting plate 1601 is threadedly matched with the outer side of the sleeve 1602. A driving motor 1603 is installed on the second mounting plate 3, and its output end is connected to the sleeve 1602 through a gear assembly 1604. When the driving motor 1603 is working, the sleeve 1602 can be driven to rotate through the gear assembly 1604, so that the multiple connecting rods 14 can be driven to move through the third connecting plate 1601. Such a design is not easy to deviate when the multiple connecting rods 14 are driven to move through the third connecting plate 1601, so that the connecting rods 14 and the second mounting plate 3 are not easy to wear.

[0049] like Figure 2 and Figure 3 As shown, in some embodiments, the cylindrical block 15 has inclined surfaces 26 symmetrically constructed at both ends, and the outer diameter of the inclined surface 26 gradually decreases from the middle of the cylindrical block 15 toward its end. The fluid can be guided by the inclined surface 26 to reduce the friction resistance when the cylindrical block 15 moves.

[0050] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Pipeline water pressure testing device, characterized in that: include: A mounting frame (1) has a first mounting plate (2) rotatably mounted on one side, a second mounting plate (3) is splined on the first mounting plate (2), and the second mounting plate (3) is movably matched with the mounting frame (1), a first driving member (4) is provided on the first mounting plate (2) for driving the second mounting plate (3) away from the first mounting plate (2), and a second driving member (5) is installed on the mounting frame (1) for driving the first mounting plate (2) to rotate; A flow channel (6) is provided on a first mounting plate (2); two first annular pads (7) are mounted on the first mounting plate (2); two second annular pads (8) are mounted on the second mounting plate (3); through holes (9) are provided at both ends of the flow channel (6) and are respectively connected to the inner sides of the two first annular pads (7); a blocking member (10) for cutting off the flow channel (6) is provided in the flow channel (6); Two pressure detection mechanisms (11) are respectively arranged at two ends of the flow channel (6); The water injection pipe (12) and the liquid outlet pipe (13) are both mounted on the second mounting plate (3), and the water injection pipe (12) and the liquid outlet pipe (13) are both connected to the inner side of one of the first annular gaskets (7); Two connecting rods (14) are respectively slidably passed through the inner sides of the two second annular pads (8), and the ends of the connecting rods (14) are each formed with a cylindrical block (15). A third driving member (16) is mounted on the second mounting plate (3), and the two connecting rods (14) can be driven to slide synchronously via the third driving member (16).

2. The pipeline water pressure testing device according to claim 1, characterized in that: The first annular pad (7) and the second annular pad (8) are both provided with annular rings (17) on the outside, and the plurality of annular rings (17) are respectively rotatably matched with the first mounting plate (2) and the second mounting plate (3), and arc plates (18) are constructed on opposite sides of the annular rings (17) on both sides, and an insert plate (19) is constructed at the end of the arc plate (18) on one side, and the arc plate (18) on the other side is slidably plugged with the insert plate (19), and a plurality of balls (20) are evenly distributed on the inner side of the ring of the arc plate (18).

3. The pipeline water pressure testing device according to claim 1, characterized in that: The number of the flow channels (6) is two.

4. The pipeline water pressure testing device according to claim 3, characterized in that: The blocking member (10) comprises a support plate (1001) slidably mounted in the flow channel (6), an annular sealing gasket (1002) for covering the through hole (9) being mounted at both ends of the support plate (1001), two pressure detection mechanisms (11) being respectively arranged on the inner side of the annular sealing gasket (1002), a first plug rod (1003) being vertically connected to the support plate (1001) and cooperating with a piston of the flow channel (6), a plurality of ends of the first plug rods (1003) passing through the flow channel (6) and being connected via a first connecting plate (1004), and a fourth driving member (1005) for driving the first connecting plate (1004) to move being arranged on the first mounting plate (2).

5. The pipeline water pressure testing device according to claim 4, characterized in that: Both sides of the abutment plate (1001) are constructed with arc surfaces (21), and the flow channel (6) is located on the inner side of the arcs of the two arc surfaces (21) relative to the inner wall.

6. The pipeline water pressure testing device according to claim 4, characterized in that: The number of the first plug rods (1003) is two and they are respectively located on the axes of the two through holes (9); the pressure detection mechanism (11) comprises a second plug rod (1101), the second plug rod (1101) slides through the first plug rod (1003) and cooperates with the piston of the first plug rod (1003); a water pressure sensor (1102) is installed at the end of the second plug rod (1101); the ends of the plurality of second plug rods (1101) are connected via a second connecting plate (1103); the fourth driving member (1005) is a multi-stage electric push rod, the fixed section (10051) of which is connected to the first mounting plate (2), and the first movable section (10052) and the second movable section (10053) of which are respectively connected to the first connecting plate (1004) and the second connecting plate (1103).

7. The pipeline water pressure testing device according to claim 6, characterized in that: The end of the second insertion rod (1101) is provided with a receiving groove (22), the water pressure sensor (1102) is installed in the receiving groove (22), both sides of the receiving groove (22) are provided with water inlet holes (23), and the end of the second insertion rod (1101) is connected to a cover plate (24).

8. The pipeline water pressure testing device according to claim 1, characterized in that: The second mounting plate (3) is provided with a plurality of cylindrical grooves (25) which are respectively connected to the inner sides of the plurality of second annular gaskets (8); the water injection pipe (12) and the liquid outlet pipe (13) are connected to the bottom sides of the lower cylindrical grooves (25).

9. The pipeline water pressure testing device according to claim 1, characterized in that: The third driving member (16) comprises a third connecting plate (1601), a plurality of connecting rods (14) are connected via the third connecting plate (1601), a sleeve (1602) is rotatably mounted on the outer side of the second mounting plate (3), the third connecting plate (1601) is threadedly engaged with the outer side of the sleeve (1602), and a driving motor (1603) is mounted on the second mounting plate (3), the output end of the driving motor being transmission-connected to the sleeve (1602) via a gear assembly (1604).

10. The pipeline water pressure testing device according to claim 9, characterized in that: The two ends of the cylindrical block (15) are symmetrically provided with inclined surfaces (26), and the outer diameter of the inclined surfaces (26) gradually decreases from the middle of the cylindrical block (15) towards the end thereof.

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