Pipeline closed water test detection device

Abstract

The utility model discloses a pipeline closed water test detection device, which relates to the field of pipeline detection devices and comprises a test pipeline, the test pipeline comprises a detection sample pipe, test wells are fixed at two ends of the detection sample pipe, a closed water air bag is arranged at one end of the detection sample pipe, and a support is arranged on the test well far away from one side of the closed water air bag. A detection mechanism is arranged at the top of the support and comprises a water storage barrel, a sealing valve is installed on one side of the bottom of the water storage barrel, a water supplementing pipe is arranged below the sealing valve, a push rod is slidably connected to the other side of the water storage barrel in a sealing mode, and a floating air bag is fixed to the bottom of the push rod. The device has the advantages that water level changes in the test well are sensed through the floating air bag, if the water level drops, the sealing valve is opened, water in the water storage barrel recovers the water level in the test well, and when the water level recovers to the original position, the sealing valve is closed and does not supplement water, and the water seepage amount is obtained by comparing the water level changes in the water storage barrel before and after a water closing test. Therefore, a closed water test result can be conveniently obtained.

Description

Technical Field

[0001] This utility model relates to the field of pipeline testing devices, and in particular to a pipeline water tightness test testing device. Background Technology

[0002] The water tightness test, also known as the water storage test, involves filling the well with sufficient water. The water depth should be no less than 20 mm, the water height is generally 30-40 mm, and the storage time should be no less than 24 hours. Afterward, move downstairs and observe the roof for any leaks. No leaks indicate a pass. With urban development, the construction of underground drainage pipelines is increasing. According to regulations, sewage pipelines, combined sewer systems, and rainwater pipelines under special geological conditions must undergo a pipe tightness test. By measuring the drop in water level in the test well, the seepage volume can be calculated. If the seepage volume is within the design range, the pipeline is qualified; if it exceeds the design range, the pipeline is unqualified.

[0003] For example, patent document CN221100424U discloses a pipeline water tightness test detection device, including a bracket installed on the backfill area of ​​a well section, a water storage tank mounted on the bracket, a hose connector connected to the bottom of the water storage tank, and a hose connected to the bottom of the hose connector, the hose extending into the water level inside the well opening; a reel is provided at the bottom of the water storage tank, and a water level sensor transmitter and a water level sensor receiver are provided on the reel, the water level sensor transmitter being suspended from the water level surface inside the well opening by a thin line; an electronic flow meter is installed inside the hose connector, and the outer surface of the water storage tank is provided with scale lines for recording the water level of the water storage tank. This device eliminates the safety hazards of manual well inspection and does not require additional measuring devices, directly calculating the seepage volume by reading the water level change in the water storage tank, thus reducing detection costs. In the above-mentioned device, the water storage tank is used to replenish the seepage in the test well, and the change in the water level and volume of the storage tank is the seepage amount. However, the above-mentioned device uses sensors to detect the water level and electronic flow meters to monitor the flow rate, which is costly. In addition, since the water tightness test lasts for a long time, the long-term outdoor humid environment will reduce the lifespan of the sensors, thereby reducing the lifespan of the detection device. Utility Model Content

[0004] The purpose of this invention is to provide a pipeline water tightness test and detection device to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A pipeline water tightness test detection device includes a test pipeline, which includes a test sample tube. Symmetrically arranged test wells are fixedly connected to both ends of the test sample tube. A water tightness airbag is installed at one end of the test sample tube. A support is installed on the test well on the side away from the water tightness airbag. A detection mechanism is installed on the top of the support. The detection mechanism includes a water storage tank. A sealing valve is slidably connected to one side of the bottom of the water storage tank. A water supply pipe is installed below the sealing valve and fixedly connected to the water storage tank. A push rod is slidably sealed to the other side of the water storage tank. A floating airbag is fixedly connected to the bottom of the push rod. A T-shaped connecting rod is rotatably connected to the middle of the bottom of the water storage tank. Symmetrically arranged side connecting rods are rotatably connected to both ends of the T-shaped connecting rod. One side connecting rod is rotatably connected to the top of the push rod, and the other side connecting rod is rotatably connected to the top of the sealing valve.

[0007] Preferably, an observation window is provided on one side of the water storage tank, and a scale is provided on one side of the observation window. A tank lid is threadedly connected to the top of the water storage tank.

[0008] Preferably, the water-tight airbag includes a rubber wall that is tightly attached to the inner wall of the test sample tube, side plates that are fixedly connected to both sides of the rubber wall, an air inlet pipe that is fixedly connected to the middle of one side plate, an airtight valve installed on the air inlet pipe, and the air inlet pipe being connected to a pressure air source.

[0009] Preferably, the support includes a connecting platform, a telescopic support leg rotatably connected to the bottom of the connecting platform, an L-shaped support plate rotatably connected to the other end of the telescopic support leg, a locking bolt threaded onto the telescopic support leg, and the L-shaped support plate closely attached to the top of the test well.

[0010] Preferably, a support platform is provided above the connecting platform, and three leveling bolts are rotatably connected to the bottom of the support platform. The leveling bolts are threadedly connected to the connecting platform, and a leveling bubble plate is installed on the top of the support platform. The top of the support platform is fixedly connected to the bottom of the water storage tank.

[0011] Preferably, the push rod is a hollow tube, and the bottom of the water supply pipe is lower than the bottom of the floating airbag.

[0012] The beneficial effects are as follows: by sensing the water level change in the test well through the floating airbag, the sealing valve opens when the water level drops, and the water in the storage tank restores the water level in the test well. When it returns to its original position, the sealing valve closes and no more water is added. By comparing the change in the water level in the storage tank before and after the water tightness test, the amount of seepage can be obtained, thus conveniently obtaining the water tightness test results.

[0013] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a perspective view of the pipeline water tightness test and detection device described in this utility model;

[0016] Figure 2 This is a front sectional view of the test pipe of the pipeline water tightness test and detection device of this utility model;

[0017] Figure 3 This is a schematic diagram showing the relative positions of the testing mechanism and the support of the pipeline water tightness test device described in this utility model;

[0018] Figure 4 This is a rear sectional view of the testing mechanism of the pipeline water tightness test and detection device described in this utility model;

[0019] Figure 5 This is a schematic diagram showing the relative positions of the T-shaped connecting rods in the pipeline water tightness test detection device described in this utility model.

[0020] Figure 6 This is a schematic diagram of the structure of the support for the pipeline water tightness test and detection device described in this utility model;

[0021] Figure 7 This utility model describes a water-tightness airbag for a pipeline water-tightness test and detection device.

[0022] The annotations in the attached figures are explained as follows:

[0023] 1. Test pipeline; 101. Test well; 102. Test sample tube; 2. Water-tight airbag; 201. Rubber wall; 202. Side plate; 203. Air inlet pipe; 204. Airtight valve; 3. Testing mechanism; 301. Water storage tank; 302. Observation window; 303. Tank lid; 304. Water supply pipe; 305. Push rod; 306. Floating airbag; 307. T-shaped connecting rod; 308. Side connecting rod; 309. Sealing valve; 4. Support; 401. Connecting platform; 402. Supporting platform; 403. Telescopic outrigger; 404. L-shaped support plate; 405. Locking bolt; 406. Leveling bolt. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] like Figures 1-7As shown, a pipeline water tightness test detection device includes a test pipeline 1, which includes a test sample tube 102. Symmetrically arranged test wells 101 are fixedly connected to both ends of the test sample tube 102. A water tightness airbag 2 is installed at one end of the test sample tube 102. A support 4 is installed on the test well 101 on the side away from the water tightness airbag 2. A detection mechanism 3 is installed on the top of the support 4. The detection mechanism 3 includes a water storage tank 301. A sealing valve 309 is slidably connected to one side of the bottom of the water storage tank 301. A water supply pipe 304 is installed below the sealing valve 309 and is fixedly connected to the water storage tank 301. A push rod 305 is slidably connected to the other side of the water storage tank 301. The bottom of the push rod 305... A floating airbag 306 is fixedly connected. A T-shaped connecting rod 307 is rotatably connected to the bottom center of a water storage tank 301. Symmetrically arranged side connecting rods 308 are rotatably connected to both ends of the T-shaped connecting rod 307. One side connecting rod 308 is rotatably connected to the top of a push rod 305, and the other side connecting rod 308 is rotatably connected to the top of a sealing valve 309. An observation window 302 is provided on one side of the water storage tank 301, and a scale is provided on one side of the observation window 302. A tank cover 303 is threadedly connected to the top of the water storage tank 301. The push rod 305 is a hollow tube. The bottom of the water supply pipe 304 is lower than the bottom of the floating airbag 306. Before conducting the test, water is first injected into the test well 101 until it is close to the bottom of the floating airbag 306. Then, the lid 303 is opened to fill the water storage tank 301 with water. At this time, since the floating airbag 306 is not buoyant, the sealing valve 309 is open, and water falls from the water supply pipe 304 into the test well 101. At this time, the water level rises continuously, and the floating airbag 306 rises due to buoyancy. The floating airbag 306 drives the push rod 305 to rise, the push rod 305 drives the side connecting rod 308 to move, the side connecting rod 308 drives the T-shaped connecting rod 307 to rotate, the T-shaped connecting rod 307 drives the other side connecting rod 308 to move, and the side connecting rod 308 drives the sealing valve 309 to close. The liquid level in the water storage tank 301 is recorded and timed. When the water level in the test well 101 drops due to seepage, the floating airbag 306... As the water level drops, the floating airbag 306 causes the sealing valve 309 to open, allowing water from the storage tank 301 to enter the test well 101 through the water supply pipe 304, thus restoring the water level. At this point, the floating airbag 306 resets, causing the sealing valve 309 to close, stopping the water supply. After the pipeline water tightness test ends, the height of the water level drop in the storage tank 301 compared to before the test can be used to determine the permeability. The push rod 305 is designed as a hollow rod to reduce weight and avoid distortion of results due to the weight of the rod. The bottom of the water supply pipe 304 is lower than the floating airbag 306 to ensure that all the water flowing out of the storage tank 301 enters the water in the test well 101, thereby ensuring the accuracy of the test results.

[0028] The water-tight airbag 2 includes a rubber wall 201 that can fit tightly against the inner wall of the test sample tube 102. Side plates 202 are fixedly connected to both sides of the rubber wall 201, and an air inlet pipe 203 is fixedly connected to the middle of one side plate 202. An airtight valve 204 is installed on the air inlet pipe 203. The air inlet pipe 203 is connected to an air cylinder. The operator puts the uninflated water-tight airbag 2 into one end of the test sample tube 102, and then uses the air cylinder to inflate air into the rubber wall 201 from the air inlet pipe 203. The rubber wall 201 expands continuously and eventually touches the inner wall of the test sample tube 102. After the pressure inside the rubber wall 201 reaches a certain level to ensure sealing, the airtight valve 204 is tightened to prevent high-pressure air leakage.

[0029] The support frame 4 includes a connecting platform 401, with a telescopic support leg 403 rotatably connected to the bottom of the connecting platform 401. An L-shaped support plate 404 is rotatably connected to the other end of the telescopic support leg 403. A locking bolt 405 is threaded onto the telescopic support leg 403. The L-shaped support plate 404 is flush against the top of the test well 101. A support platform 402 is positioned above the connecting platform 401. Three leveling bolts 406 are ball-jointed at the bottom of the support platform 402 and threadedly connected to the connecting platform 401. A leveling device is installed on the top of the support platform 402. The bubble tray and leveling bubble tray are existing technologies and will not be described in detail here. The top of the support platform 402 is fixedly connected to the bottom of the water storage tank 301. The operator rotates the locking bolt 405 to allow the telescopic support leg 403 to extend and retract freely. The telescopic support leg 403 is opened so that the L-shaped support plate 404 touches the top edge of the inner wall of the test well 101. Then the locking bolt 405 is tightened to fix the telescopic support leg 403. After that, the leveling bolt 406 is used to level the support platform 402 to ensure that the liquid level inside the water storage tank 301 is parallel to the scale on one side of the observation window 302.

[0030] Working principle: Before the test, the operator rotates the locking bolt 405 to allow the telescopic support leg 403 to extend and retract freely. The telescopic support leg 403 is then opened so that the L-shaped support plate 404 contacts the top edge of the inner wall of the test well 101. The locking bolt 405 is then tightened to fix the telescopic support leg 403. Afterwards, the leveling bolt 406 is used to level the support platform 402, ensuring that the liquid level inside the water storage tank 301 is parallel to the scale on one side of the observation window 302. The operator then places the uninflated water-tight airbag 2 into the test sample. At one end of tube 102, air is then injected into the rubber wall 201 through the air inlet pipe 203 using an air inflator. The rubber wall 201 expands continuously and eventually touches the inner wall of the test sample tube 102. Once the pressure inside the rubber wall 201 reaches a certain level to ensure a seal, the airtight valve 204 is tightened to prevent high-pressure air leakage. Before conducting the test, water is first injected into the test well 101 until it is close to the bottom of the floating airbag 306. Then, the bucket lid 303 is opened to inject water into the water storage tank 301. At this time, due to the floating airbag... 306 is not subject to buoyancy, and the sealing valve 309 is in the open state. Water falls from the water supply pipe 304 into the test well 101. At this time, the water level continues to rise, and the floating airbag 306 is lifted by buoyancy. The floating airbag 306 drives the push rod 305 to rise, the push rod 305 drives the side connecting rod 308 to move, the side connecting rod 308 drives the T-shaped connecting rod 307 to rotate, the T-shaped connecting rod 307 drives the other side connecting rod 308 to move, and the side connecting rod 308 drives the sealing valve 309 to close. Record the water level in the storage tank 301 at this time. The liquid level in the test well 101 is measured and timed. When the water level in the test well 101 drops due to seepage, the floating airbag 306 drops with the water level. The floating airbag 306 drives the sealing valve 309 to open, and the water in the water storage tank 301 enters the test well 101 from the water supply pipe 304 to restore the water level. At this time, the floating airbag 306 resets and drives the sealing valve 309 to close, stopping the water supply. After the pipeline water tightness test time ends, the height of the drop in the water level in the water storage tank 301 compared with before the start can be used to determine the seepage volume.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pipeline water tightness test device, comprising a test pipeline (1), characterized in that: The test pipeline (1) includes a test sample tube (102), with symmetrically arranged test wells (101) fixedly connected to both ends of the test sample tube (102). A water-tight airbag (2) is provided at one end of the test sample tube (102), and a support (4) is provided on the test well (101) on the side away from the water-tight airbag (2). A testing mechanism (3) is provided on the top of the support (4), and the testing mechanism (3) includes a water storage tank (301). A sealing valve (309) is slidably connected to one side of the bottom of the water storage tank (301), and a water supply pipe (304) is provided below the sealing valve (309). The water supply pipe (304) is fixedly connected to the water storage tank (301). A push rod (305) is slidably connected to the other side of the water storage tank (301). A floating airbag (306) is fixedly connected to the bottom of the push rod (305). A T-shaped connecting rod (307) is rotatably connected to the middle of the bottom of the water storage tank (301). A symmetrically arranged side connecting rod (308) is rotatably connected to both ends of the T-shaped connecting rod (307). One side connecting rod (308) is rotatably connected to the top of the push rod (305), and the other side connecting rod (308) is rotatably connected to the top of the sealing valve (309).

2. The pipeline water tightness test and detection device according to claim 1, characterized in that: The water storage tank (301) has an observation window (302) on one side, and a scale is provided on one side of the observation window (302). The top of the water storage tank (301) is threadedly connected to a tank lid (303).

3. The pipeline water tightness test and detection device according to claim 1, characterized in that: The water-tight airbag (2) includes a rubber wall (201) that is tightly attached to the inner wall of the test sample tube (102). Side plates (202) are fixedly connected to both sides of the rubber wall (201). An air inlet pipe (203) is fixedly connected to the middle of one side plate (202). An airtight valve (204) is installed on the air inlet pipe (203). The air inlet pipe (203) is connected to a pressure air source.

4. The pipeline water tightness test and detection device according to claim 1, characterized in that: The support (4) includes a connecting platform (401), a telescopic support leg (403) is rotatably connected to the bottom of the connecting platform (401), an L-shaped support plate (404) is rotatably connected to the other end of the telescopic support leg (403), a locking bolt (405) is threaded onto the telescopic support leg (403), and the L-shaped support plate (404) is close to the top of the test well (101).

5. The pipeline water tightness test and detection device according to claim 4, characterized in that: A support platform (402) is provided above the connecting platform (401). Three leveling bolts (406) are rotatably connected to the bottom of the support platform (402). The leveling bolts (406) are threadedly connected to the connecting platform (401). A leveling bubble plate is installed on the top of the support platform (402). The top of the support platform (402) is fixedly connected to the bottom of the water storage tank (301).

6. The pipeline water tightness test and detection device according to claim 1, characterized in that: The push rod (305) is configured as a hollow tube, and the bottom of the water supply pipe (304) is lower than the bottom of the floating airbag (306).

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