Pipeline sealing performance detection device for water conservancy project

Abstract

The utility model provides a pipeline sealing performance detection device for hydraulic engineering, which belongs to the field of hydraulic engineering and comprises a water tank and a support frame, a detection mechanism is arranged at the bottom of the support frame, and a clamping assembly is arranged on the detection mechanism. The detection mechanism comprises a supporting rod, an arc-shaped plate, a scraping plate, an air cylinder, a connecting plate, a supporting plate, a round frame, a rotating frame, a first motor, an air inlet pipe and an air pump. Through the detection mechanism and the clamping assembly, during use, a second motor drives two connecting plates, a round frame and a rotating frame to slide along the interior of a moving groove so as to clamp a pipeline, then a cylinder drives the to-be-tested pipeline to descend, and then a first motor drives the rotating frame and the pipeline to rotate so as to clamp the pipeline. At the moment, dirt on the outer wall of the pipeline can be scraped off by the scraping plate, leakage holes in the pipeline are prevented from being blocked by the dirt, then air is inflated into the pipeline through the air pump, if bubbles are generated in water, the sealing performance of the pipeline is unqualified, and otherwise, the sealing performance of the pipeline is qualified.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering, and more specifically, to a pipe sealing detection device used in water conservancy engineering. Background Technology

[0002] Pipelines are an indispensable part of water conservancy projects, and there are strict requirements for their quality. If the airtightness of the pipeline is poor, it may burst during use, resulting in high subsequent maintenance costs and even safety accidents. Therefore, before the pipeline is put into use, it is necessary to use a testing device to test its airtightness to ensure that only pipelines that meet the standards can be put into use in water conservancy projects.

[0003] A search revealed that Chinese patent CN219757638U discloses a "pipeline sealing test device, including a fixed base, a U-shaped plate at the top and near the rear of the fixed base, a feeding mechanism at the top and near the front of the fixed base, a first hydraulic cylinder at the center of the top of the U-shaped plate, the end of the movable rod of the first hydraulic cylinder passing through the top of the U-shaped plate and fixedly connected to a first movable plate, a first positioning mechanism at the left end of the bottom of the first movable plate, and a second positioning mechanism at the right end of the bottom of the first movable plate. This pipeline sealing test device clamps and fixes the pipeline through the first and second positioning mechanisms, and seals the left and right ends of the pipeline. Air is injected into the pipeline through an L-shaped air inlet pipe, and the first movable plate is moved up and down by the first hydraulic cylinder, thereby placing the pipeline into a water tank. When there is a crack in the pipeline, air bubbles will be generated in the water tank, allowing the user to quickly identify whether the pipeline is sealed." However, the following defects still exist:

[0004] However, the device cannot clean the outer wall of the pipe during use. When performing pipe sealing tests, some dirt may adhere to the pipe surface. When gas enters the pipe, the dirt may block the leak, thus affecting the test results.

[0005] Therefore, we have made improvements to this and proposed a pipeline sealing test device for water conservancy projects. Utility Model Content

[0006] The purpose of this invention is to address the problem that current pipe sealing testing devices used in water conservancy projects cannot clean the outer wall of the pipe. When conducting pipe sealing tests, some dirt may adhere to the pipe surface. When gas enters the pipe, the dirt may block the leak, thus affecting the test results.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0008] Pipeline sealing testing devices for water conservancy projects are used to improve the above-mentioned problems.

[0009] The specific details of this utility model are as follows:

[0010] It includes a water tank and a support frame, the bottom of which is provided with a detection mechanism, and the detection mechanism is provided with a clamping component;

[0011] The detection mechanism includes support rods, arc-shaped plates, scrapers, cylinders, connecting plates, support plates, circular frames, rotating frames, a first motor, an air inlet pipe, and an air pump. Two support rods are fixedly connected to the inner bottom wall of the water tank. Two arc-shaped plates are respectively fixedly connected to the tops of the two support rods. The scraper is fixedly connected to the tops of the two arc-shaped plates. The cylinder is fixedly connected to the top of the support frame. The connecting plate is fixedly connected to the telescopic end of the cylinder. Two support plates are respectively located at the bottom ends of the connecting plate. Two circular frames are respectively fixedly connected to the bottoms of the two support plates. Two rotating frames are respectively rotatably connected to the inside of the two circular frames. The first motor and the air inlet pipe are respectively located on one side of the two circular frames. The air pump is fixedly connected to the top of the air inlet pipe.

[0012] As a preferred technical solution of this utility model, the clamping assembly includes a moving groove, a bidirectional lead screw, and a second motor. The moving groove is opened at the bottom of the connecting plate, the bidirectional lead screw is rotatably connected to the inside of the moving groove, the second motor is fixedly connected to the side wall of the connecting plate, and the two support plates are respectively located at both ends of the bidirectional lead screw.

[0013] As a preferred technical solution of this utility model, a first rubber pad and a second rubber pad are fixedly connected to the inner walls of the two rotating frames respectively, and one end of the air intake pipe passes through the circular frame, the rotating frame and the second rubber pad.

[0014] As a preferred technical solution of this utility model, a drain pipe is connected to the side wall of the water tank, and a ball valve is installed on the drain pipe.

[0015] As a preferred technical solution of this utility model, two guide rods are fixedly connected to the top of the connecting plate. Both guide rods pass through the support frame and are slidably connected to the support frame.

[0016] As a preferred technical solution of this utility model, the first motor is provided with a waterproof shell, and the waterproof shell is made of stainless steel.

[0017] As a preferred technical solution of this utility model, the bottom end of the support frame is fixedly connected to an installation plate, and the top of the installation plate is provided with a threaded hole.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] In the solution of this utility model:

[0020] With the established detection mechanism and clamping components, during use, the second motor drives the two connecting plates, the circular frame, and the rotating frame to slide along the inside of the moving groove, thereby clamping the pipe. Then, the cylinder drives the pipe to be tested to descend, and then the first motor drives the rotating frame and the pipe to rotate. At this time, the scraper can scrape off the dirt on the outer wall of the pipe to prevent the dirt from clogging the leak holes on the pipe. Then, the air pump inflates the inside of the pipe. If air bubbles are generated in the water, the pipe's sealing performance is unqualified; otherwise, it is qualified. Attached Figure Description

[0021] Figure 1 A schematic diagram of the pipe sealing test device for water conservancy projects provided by this utility model;

[0022] Figure 2 Right view of the pipe sealing test device for water conservancy projects provided by this utility model;

[0023] Figure 3 The present invention provides a pipeline sealing test device for water conservancy projects. Figure 2 A three-dimensional cross-sectional view at point AA;

[0024] Figure 4 The present invention provides a pipeline sealing test device for water conservancy projects. Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 The present invention provides a pipeline sealing test device for water conservancy projects. Figure 3 Enlarged view of point B in the middle.

[0026] The image shows:

[0027] 1. Water tank; 2. Support frame; 3. Detection mechanism; 4. Clamping assembly; 5. First rubber pad; 6. Second rubber pad; 7. Drain pipe; 8. Ball valve; 9. Guide rod; 10. Waterproof shell; 11. Mounting plate; 12. Threaded hole; 301. Support rod; 302. Arc plate; 303. Scraper; 304. Cylinder; 305. Connecting plate; 306. Support plate; 307. Circular frame; 308. Rotating frame; 309. First motor; 310. Air inlet pipe; 311. Air pump; 401. Moving slot; 402. Two-way lead screw; 403. Second motor. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0029] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] like Figure 1-5 As shown, this embodiment proposes a pipe sealing test device for water conservancy projects, including a water tank 1 and a support frame 2. A test mechanism 3 is provided at the bottom of the support frame 2, and a clamping component 4 is provided on the test mechanism 3.

[0033] like Figure 3 , Figure 4 and Figure 5As shown, the detection mechanism 3 includes support rods 301, arc-shaped plates 302, scrapers 303, cylinders 304, connecting plates 305, support plates 306, circular frames 307, rotating frames 308, a first motor 309, an air inlet pipe 310, and an air pump 311. Both support rods 301 are fixedly connected to the inner bottom wall of the water tank 1. The two arc-shaped plates 302 are respectively fixedly connected to the tops of the two support rods 301. The scraper 303 is fixedly connected to the tops of the two arc-shaped plates 302. The cylinder 304 is fixedly connected to the top of the support frame 2. The connecting plate 305 is fixedly connected to the telescopic end of the cylinder 304. The two support plates 306 are respectively located at the bottom ends of the connecting plate 305. The two circular frames 307 are respectively fixedly connected to the bottoms of the two support plates 306. The two rotating frames 308 are respectively rotatably connected inside the two circular frames 307. The first motor 309 and the air inlet pipe 310 are respectively located on the two circular frames 307. On one side of 07, the air pump 311 is fixedly connected to the top of the air inlet pipe 310. The rotating frame 308 is coaxial with the circular frame 307. The output end of the first motor 309 passes through the circular frame 307 and is fixedly connected to the rotating frame 308. When in use, the pipe is placed between the two circular frames 307. At this time, the two rotating frames 308 will block both ends of the pipe. Then, the cylinder 304 is started. The cylinder 304 drives the pipe to descend until the outer wall of the pipe contacts the arc plate 302. Then, the cylinder 304 is stopped. At this time, the first motor 309 is started. The first motor 309 drives the rotating frame 308 and the pipe to rotate. Then, water is injected into the water tank 1 until the water surface contacts the outer wall of the pipe. At this time, the scraper 303 will scrape off the dirt on the outer wall of the pipe. Then, the air pump 311 is started. The air pump 311 sends gas into the pipe through the air inlet pipe 310. If bubbles appear in the water, the pipe is unqualified. If no bubbles appear, it is qualified.

[0034] like Figure 3 and Figure 4 As shown, the clamping assembly 4 includes a moving groove 401, a bidirectional lead screw 402, and a second motor 403. The moving groove 401 is located at the bottom of the connecting plate 305. The bidirectional lead screw 402 is rotatably connected to the inside of the moving groove 401. The second motor 403 is fixedly connected to the side wall of the connecting plate 305. Two support plates 306 are located at the two ends of the bidirectional lead screw 402, respectively. The output end of the second motor 403 is coaxial with the bidirectional lead screw 402 and can drive the bidirectional lead screw 402 to rotate. When the pipe is placed between the two circular frames 307, the second motor 403 is started. The second motor 403 drives the bidirectional lead screw 402 to rotate, thereby causing the two support plates 306, the circular frames 307, and the rotating frame 308 to move along the moving groove 401, thereby fully clamping the pipe and improving the stability of the pipe.

[0035] like Figure 4 and Figure 5As shown, a first rubber pad 5 and a second rubber pad 6 are fixedly connected to the inner walls of the two rotating frames 308 respectively. One end of the air inlet pipe 310 passes through the circular frame 307, the rotating frame 308 and the second rubber pad 6. One end of the air inlet pipe 310 is rotatably connected to the circular frame 307, the rotating frame 308 and the second rubber pad 6. In use, the first rubber pad 5 and the second rubber pad 6 can increase the friction between the two rotating frames 308 and the two ends of the pipe, and at the same time, they can also improve the sealing between the two rotating frames 308 and the first rubber pad 5 and the second rubber pad 6, thereby improving the accuracy of the test.

[0036] like Figure 1 As shown, a drain pipe 7 is connected to the side wall of the water tank 1, and a ball valve 8 is installed on the drain pipe 7. After the pipe test is completed, the ball valve 8 is opened to drain the water inside the water tank 1.

[0037] like Figure 1 As shown, two guide rods 9 are fixedly connected to the top of the connecting plate 305. Both guide rods 9 pass through the support frame 2 and are slidably connected to the support frame 2. When the cylinder 304 drives the connecting plate 305 to descend, the guide rods 9 can improve the stability of the connecting plate 305 during lifting and lowering.

[0038] like Figure 4 As shown, the first motor 309 is provided with a waterproof shell 10. The waterproof shell 10 is made of stainless steel. The waterproof shell 10 is fixedly connected to the circular frame 307 near the first motor 309. During use, the waterproof shell 10 can prevent water from entering the first motor 309 and causing damage to the first motor 309.

[0039] like Figure 1 As shown, the bottom end of the support frame 2 is fixedly connected to the mounting plate 11. The top of the mounting plate 11 has four threaded holes 12, which are located at the four corners of the mounting plate 11. When in use, external bolts are screwed into the threaded holes 12 and the ground in sequence to fix the support frame 2.

[0040] Specifically, when using the pipe sealing testing device for this water conservancy project: External bolts are sequentially screwed into the threaded holes 12 and the ground to fix the support frame 2. Then, the first motor 309, air pump 311, second motor 403, and cylinder 304 are connected to an external power source. Next, the pipe to be tested is picked up, and its two ends are aligned with the two rotating frames 308. Then, the second motor 403 is started, driving the bidirectional lead screw 402 to rotate, thereby bringing the two support plates 306, the circular frame 307, and the rotating frame 308 closer together until the first rubber pad 5 and the second rubber pad 6 are in contact with both ends of the pipe. Then, the device is closed. The second motor 403 then fills the water tank 1 with water until the water surface covers the arc plate 302 and is kept away from the air pump 311. Then, the cylinder 304 is activated, which drives the pipe to descend until it contacts the top of the arc plate 302. The cylinder 304 is then deactivated, and the first motor 309 is activated. The first motor 309 drives the rotating frame 308 and the pipe to rotate. At this time, the scraper 303 scrapes off the dirt on the outer wall of the pipe. Then, the air pump 311 is activated, which injects air into the air inlet pipe 310 and the inside of the pipe. If air bubbles appear in the water, the pipe is defective; if no air bubbles appear, it is qualified.

[0041] All technical features in this embodiment can be freely combined according to actual needs.

[0042] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A pipe sealing test device for water conservancy projects, comprising a water tank (1) and a support frame (2), characterized in that, The bottom of the support frame (2) is provided with a detection mechanism (3), and the detection mechanism (3) is provided with a clamping component (4). The detection mechanism (3) includes a support rod (301), an arc plate (302), a scraper (303), a cylinder (304), a connecting plate (305), a support plate (306), a circular frame (307), a rotating frame (308), a first motor (309), an air inlet pipe (310), and an air pump (311). Both support rods (301) are fixedly connected to the inner bottom wall of the water tank (1). The two arc plates (302) are respectively fixedly connected to the tops of the two support rods (301). The scraper (303) is fixedly connected to the tops of the two arc plates (302). The cylinder (304)... 04) Fixedly connected to the top of the support frame (2), the connecting plate (305) is fixedly connected to the telescopic end of the cylinder (304), the two support plates (306) are respectively set at the bottom ends of the connecting plate (305), the two circular frames (307) are respectively fixedly connected to the bottom of the two support plates (306), the two rotating frames (308) are respectively rotatably connected to the inside of the two circular frames (307), the first motor (309) and the air inlet pipe (310) are respectively set on one side of the two circular frames (307), and the air pump (311) is fixedly connected to the top of the air inlet pipe (310).

2. The pipe sealing testing device for water conservancy projects according to claim 1, characterized in that, The clamping assembly (4) includes a moving groove (401), a bidirectional lead screw (402), and a second motor (403). The moving groove (401) is located at the bottom of the connecting plate (305). The bidirectional lead screw (402) is rotatably connected to the inside of the moving groove (401). The second motor (403) is fixedly connected to the side wall of the connecting plate (305). The two support plates (306) are located at the two ends of the bidirectional lead screw (402).

3. The pipe sealing testing device for water conservancy projects according to claim 1, characterized in that, A first rubber pad (5) and a second rubber pad (6) are fixedly connected to the inner walls of the two rotating frames (308), and one end of the air intake pipe (310) passes through the circular frame (307), the rotating frame (308), and the second rubber pad (6).

4. The pipe sealing test device for water conservancy projects according to claim 1, characterized in that, A drain pipe (7) is connected to the side wall of the water tank (1), and a ball valve (8) is installed on the drain pipe (7).

5. The pipe sealing testing device for water conservancy projects according to claim 1, characterized in that, The top of the connecting plate (305) is fixedly connected to two guide rods (9), both of which pass through the support frame (2) and are slidably connected to the support frame (2).

6. The pipe sealing test device for water conservancy projects according to claim 1, characterized in that, The first motor (309) is provided with a waterproof shell (10) on its exterior, and the waterproof shell (10) is made of stainless steel.

7. The pipe sealing test device for water conservancy projects according to claim 1, characterized in that, The bottom end of the support frame (2) is fixedly connected to the mounting plate (11), and the top of the mounting plate (11) is provided with a threaded hole (12).

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