An electric power tube force testing device

Abstract

The utility model discloses a kind of electric power calandria internal force testing devices, including bottom frame, the outer wall of the bottom frame is fixedly connected with two battens, the top of the bottom frame and two battens is fixedly connected with six vertical boards, the outer wall of the bottom frame is fixedly connected with two bottom plates, the top of the bottom frame is fixedly connected with two support rods, fixedly connected with center pole between two support rods, the outer wall of the center pole is rotatably sleeved with two ear plates.The utility model guides leakage water to water-sensitive paper by the arc-shaped supporting plate after inclination, then using the irreversible color change characteristic of water-sensitive paper, replace long time on duty observation by artificial, greatly reduce manpower cost input;Through double arc-shaped supporting plate realizes double-station synchronous test, simultaneously, inlet pipe can be set to downward inclination, combined with the synergistic effect of exhaust valve, can fully discharge air in calandria, can avoid the pressure fluctuation caused by air resistance, ensure that pipe pressure is stable to reach test standard.

Description

Technical Field

[0001] This utility model relates to the field of power duct technology, and in particular to a power duct internal force testing device. Background Technology

[0002] Power ducts are power channels used to meet the requirements of substation cable entry and exit channels and overhead line undergrounding. Their main function is to provide power channels for the power supply along the route. Power ducts are usually made of high-strength materials, possessing high strength and durability, capable of withstanding large loads, and with low frictional resistance, facilitating smooth cable insertion and reducing damage. Internal force testing is required during the construction and use of power ducts to ensure their structural reliability and safety. Internal force testing refers to testing the forces that the power duct can withstand under internal pressure.

[0003] In existing technologies, testing personnel typically rely on long-term observation to visually determine whether the power pipes are leaking. This method not only consumes a lot of manpower but is also prone to missed leaks due to personnel fatigue and lack of concentration, seriously affecting the reliability of the test results. Furthermore, the lack of targeted venting optimization design during testing makes it difficult to fully expel air from the power pipes, resulting in air resistance. Therefore, we propose a power pipe internal force testing device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for testing the internal force of power pipelines.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An internal force testing device for power ducts includes a base frame. Two mounting plates are fixedly connected to the outer wall of the base frame. Six vertical plates are fixedly connected to the top of the base frame and the two mounting plates. Two base plates are fixedly connected to the outer wall of the base frame. Two support rods are fixedly connected to the top of the base frame. A central rod is fixedly connected between the two support rods. Two ear plates are rotatably sleeved on the outer wall of the central rod. An arc-shaped support plate is fixedly connected to the top of each of the two ear plates. A power duct body is placed on the top of each of the two arc-shaped support plates. End caps are fixedly connected to both ends of the power duct body. An inclined component is provided on the top of the base frame. Two baffles are fixedly connected inside each of the two arc-shaped support plates. Water-sensitive paper is adhered to the inner wall of each of the two arc-shaped support plates.

[0007] Preferably, the tilting assembly includes four locking caps, and the outer walls of the six vertical plates are all provided with arc-shaped grooves. The outer walls of the two arc-shaped support plates are fixedly connected with two threaded posts. The outer walls of the four threaded posts are respectively threaded to the inner walls of the four locking caps. The tilting assembly facilitates venting and testing.

[0008] Preferably, each of the two base plates has two casters fixedly connected to its bottom, and the four casters facilitate the movement of the entire frame.

[0009] Preferably, the outer walls of the two plugs are fixedly connected to each other with water inlet pipes, and one end of each of the two water inlet pipes is fixedly connected to a water pump. An existing metal corrugated pipe is connected between the water pump and the water inlet pipe.

[0010] Preferably, the outer walls of the other two plugs are fixedly connected with vent valves, which are used to release air from the power pipe body and also prevent water from being discharged.

[0011] Preferably, the outer wall of the threaded column is slidably connected to the inner wall of the arc-shaped groove, and the arc-shaped groove cooperates with the threaded column to assist the arc-shaped support plate in rotating.

[0012] Preferably, the outer walls of the two baffles are in contact with the outer walls of the two plugs respectively. The baffles prevent the arc support plate from sliding out after tilting, and play a role in blocking and supporting.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] This solution guides the leaking water to the water-sensitive paper via an inclined arc-shaped support plate. The irreversible color change of the water-sensitive paper upon contact with water replaces long-term manual observation, significantly reducing labor costs. The double arc-shaped support plate enables simultaneous testing at two workstations. The water inlet pipe can be tilted downwards, and combined with the exhaust valve, it can fully expel air from the pipe, avoiding pressure fluctuations caused by air resistance and ensuring that the pressure inside the pipe remains stable and meets the testing standards. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of an internal force testing device for power pipelines proposed in this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of an internal force testing device for power pipelines proposed in this utility model;

[0018] Figure 3 This utility model proposes a device for testing the internal force of power ducts. Figure 2 A magnified structural diagram of part A in the diagram;

[0019] Figure 4 This utility model proposes a device for testing the internal force of power ducts. Figure 2 A magnified structural diagram of part B in the diagram.

[0020] In the diagram: 1. Base frame; 2. Platform; 3. Vertical plate; 4. Base plate; 5. Casters; 6. Support rod; 7. Center rod; 8. Ear plate; 9. Arc-shaped support plate; 10. Power conduit body; 11. Plug; 12. Water inlet pipe; 13. Arc-shaped groove; 14. Threaded column; 15. Baffle; 16. Water-sensitive paper; 17. Locking cap; 18. Air vent valve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Depend on Figures 1-4 As shown, a power duct internal force testing device is disclosed, comprising a base frame 1, two mounting plates 2 are fixedly connected to the outer wall of the base frame 1, six vertical plates 3 are fixedly connected to the top of the base frame 1 and the two mounting plates 2, the mounting plates 2 provide auxiliary support for the vertical plates 3 and enhance the connection strength between the vertical plates 3 and the base frame 1, two base plates 4 are fixedly connected to the outer wall of the base frame 1, and two casters 5 are fixedly connected to the bottom of each of the two base plates 4.

[0023] Two support rods 6 are fixedly connected to the top of the bottom frame 1. A central rod 7 is fixedly connected between the two support rods 6. Two ear plates 8 are rotatably sleeved on the outer wall of the central rod 7. The support rods 6 provide a stable support fulcrum for the central rod 7, so that the ear plates 8 can rotate smoothly around the central rod 7. At the same time, they bear the weight of the ear plates 8, the arc-shaped support plate 9 and the power pipe body 10, preventing the central rod 7 from sagging due to the load and ensuring the smoothness of angle adjustment.

[0024] Both ear plates 8 are fixedly connected to the top of an arc-shaped support plate 9. The arc-shaped support plate 9 fits the arc of the outer wall of the power pipe body 10, which can stably support the power pipe body 10, prevent rolling, and collect water leaking from the power pipe body 10. With the tilt angle design, it guides the water flow to the water-sensitive paper 16, providing conditions for leakage monitoring.

[0025] The top of each of the two arc-shaped support plates 9 is equipped with a power pipe body 10. Both ends of the power pipe body 10 are fixedly connected with plugs 11, which seal both ends of the power pipe body 10. The outer walls of the two plugs 11 are fixedly connected to water inlet pipes 12, and the outer walls of the other two plugs 11 are fixedly connected to air vent valves 18. When the air vent valve 18 is closed, the valve core will tightly fit the sealing element under the action of water pressure in the pipe, blocking the valve channel and forming a mechanical seal structure, thereby preventing water inside the power pipe body 10 from flowing out of the air vent valve 18, achieving the "water blocking" effect.

[0026] Two water inlet pipes 12 are each fixedly connected to a water pump at one end. Two baffles 15 are fixedly connected inside the two arc-shaped support plates 9. Water-sensitive paper 16 is glued to the inner wall of the two arc-shaped support plates 9. The water-sensitive paper 16 can be replaced after use. The outer wall of the two baffles 15 contacts the outer wall of the two plugs 11 respectively. The baffles 15 prevent the power pipe body 10 from sliding along the length of the arc-shaped support plate 9 during tilt adjustment or testing, and ensure that the pipe position is fixed.

[0027] The top of the base frame 1 is provided with an inclined assembly, which includes four locking caps 17. The outer walls of the six vertical plates 3 are all provided with arc-shaped grooves 13. The outer walls of the two arc-shaped support plates 9 are fixedly connected to two threaded posts 14. The outer walls of the four threaded posts 14 are respectively threaded to the inner walls of the four locking caps 17. The outer walls of the threaded posts 14 are slidably connected to the inner walls of the arc-shaped grooves 13. Anti-loosening washers can be added to the outer walls of the threaded posts 14 to enhance the fixing effect in conjunction with the locking caps 17, prevent the threaded posts 14 from loosening due to vibration or pressure changes after adjustment, and ensure the stability of the tilt angle of the arc-shaped support plate 9.

[0028] The vertical plate 3 provides a directional sliding track for the threaded column 14. The arc groove 13 restricts the sliding trajectory of the threaded column 14, ensuring that the arc support plate 9 moves along the preset arc when adjusting the tilt angle, avoiding deviation and improving the accuracy of angle adjustment. The vertical plate 3 serves as a compression support for the locking cap 17. When the locking cap 17 is tightened, the vertical plate 3 can withstand the locking force, stably fixing the arc support plate 9 at the target tilt angle and preventing the angle from loosening during the test.

[0029] Working principle: In use, the two power pipe bodies 10 to be tested are placed on top of the two arc-shaped support plates 9. One end of each of the two existing metal corrugated pipes is connected to one of the two water inlet pipes 12, and the output ends of the two water pumps are connected to the other ends of the two metal corrugated pipes. The two water pumps operate to draw water from the outside source (bucket or pool) through the two metal corrugated pipes into the two water inlet pipes 12, and then into the two power pipe bodies 10. Since both ends of the power pipe bodies 10 are pre-sealed with two plugs 11, the air inside the two power pipe bodies 10 is vented through the two vent valves 18 after water is introduced. When the two power pipe bodies 10 are full of water and the test pressure is reached, the four locking caps 17 are rotated to prevent them from pressing against the outer walls of the four vertical plates 3, allowing the two arc-shaped support plates 9 to... The two ear plates 8 rotate around the central rod 7, with the left end of the two arc-shaped support plates 9 facing down and the right end facing up. When the two arc-shaped support plates 9 rotate, multiple threaded columns 14 slide along multiple arc-shaped grooves 13. After tilting, the four locking caps 17 are rotated again to press them against the outer wall of the vertical plate 3. Anti-loosening gaskets can be added to the outer wall of the threaded columns 14 to increase the anti-loosening ability of the locking caps 17. After the power pipe body 10 leaks water, the water flows along the tilted arc-shaped support plates 9 to the water-sensitive paper 16. The water-sensitive paper 16 changes color when it comes into contact with water (irreversibly). This method can avoid the need for people to observe the power pipe body 10 for a long time. When the two power pipe bodies 10 are filled with water, the two water inlet pipes 12 can be tilted downwards to facilitate the venting of the two power pipe bodies 10. At the same time, the number of bottom frames 1 and arc-shaped support plates 9 can be increased according to the test requirements.

[0030] It should be noted that when actually put into use, an existing PLC controller can be added. The PLC controller is electrically connected to the water pump, which facilitates the control of the overall operation.

[0031] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0032] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the internal force of power ducts, comprising a base frame (1), characterized in that, Two mounting plates (2) are fixedly connected to the outer wall of the bottom frame (1). Six vertical plates (3) are fixedly connected to the top of the bottom frame (1) and the two mounting plates (2). Two bottom plates (4) are fixedly connected to the outer wall of the bottom frame (1). Two support rods (6) are fixedly connected to the top of the bottom frame (1). A central rod (7) is fixedly connected between the two support rods (6). Two ear plates (8) are rotatably sleeved on the outer wall of the central rod (7). An arc-shaped support plate (9) is fixedly connected to the top of each of the two ear plates (8). An electric pipe body (10) is placed on the top of each of the two arc-shaped support plates (9). A plug (11) is fixedly connected to both ends of the electric pipe body (10). An inclined component is provided on the top of the bottom frame (1). Two baffles (15) are fixedly connected inside each of the two arc-shaped support plates (9). Water-sensitive paper (16) is glued to the inner wall of each of the two arc-shaped support plates (9).

2. The power duct internal force testing device according to claim 1, characterized in that, The tilting assembly includes four locking caps (17), and the outer walls of the six vertical plates (3) are provided with arc-shaped grooves (13). The outer walls of the two arc-shaped support plates (9) are fixedly connected with two threaded posts (14), wherein the outer walls of the four threaded posts (14) are respectively threadedly connected to the inner walls of the four locking caps (17).

3. The power duct internal force testing device according to claim 1, characterized in that, Two casters (5) are fixedly connected to the bottom of each of the two base plates (4).

4. The power duct internal force testing device according to claim 1, characterized in that, The outer walls of the two plugs (11) are fixedly connected to water inlet pipes (12), and one end of each of the two water inlet pipes (12) is fixedly connected to a water pump.

5. The power duct internal force testing device according to claim 1, characterized in that, The outer walls of the other two plugs (11) are fixedly connected with exhaust valves (18).

6. The power duct internal force testing device according to claim 2, characterized in that, The outer wall of the threaded column (14) is slidably connected to the inner wall of the arc groove (13).

7. The power duct internal force testing device according to claim 1, characterized in that, The outer walls of the two baffles (15) are in contact with the outer walls of the two plugs (11), respectively.

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