Automatic water seepage amount measuring device for closed water test

Abstract

The utility model relates to the field of detection equipment. The utility model provides an automatic water seepage amount measuring device for a closed water test. The automatic water seepage amount measuring device comprises a body which can be transversely arranged on a vertical pipe opening of a to-be-measured pipeline; a vertical connecting rod movably penetrates through the body, and a floating piece is installed at the lower end of the connecting rod, can float on the water surface and drives the connecting rod to ascend and descend relative to the body along with ascending and descending of the water surface. A water pump capable of supplying water to the pipeline is installed on the body, a power supply switch of the water pump comprises a first metal contact and a second metal contact which are arranged on the top face of the body, and a conductive piece installed on the connecting rod is further included and located above the two metal contacts; the floating piece descends along with the water surface to drive the connecting rod and the conductive piece installed on the connecting rod to descend to be attached to the two metal contacts, so that the power supply switch is switched on, and the water pump is powered on and started. The device can automatically replenish water to the to-be-detected pipeline, when a detector uses the measuring device to carry out a closed water test on the pipeline, the closed water test operation can be completed by one person, and the obtained closed water test result is accurate.

Description

Technical Field

[0001] The utility model relates to the field of detection equipment, in particular to an automatic water seepage measurement device for a closed water test. Background Art

[0002] After the water supply and drainage pipelines are installed, they need to undergo a functional test to determine whether they meet the relevant standards. A water-tightness test is one type of test. When conducting a water-tightness test, inspectors first fill the closed pipe to be tested with water until the water level reaches the standard. They then manually mark and measure the initial water level before beginning the test. If the pipeline has airtightness defects such as seepage or leakage, the water level will drop after a period of testing. To ensure this, inspectors use a timer to measure the water level in the pipeline while visually observing the water level. If the water level drops, they use a graduated cylinder to manually add water to the pipeline to maintain the initial level, and record the amount of water added. After a period of time, the water-tightness test ends, and inspectors use the total amount of water added and the test time to calculate the test results. However, to complete the above-mentioned water-tightness test, the tester needs to observe the water level, add water when the water level drops below the initial height, and keep track of the time. The entire operation is cumbersome and physically labor-intensive, often requiring the cooperation of multiple testers. In addition, visual observation of the water level is prone to errors, and the process of manually adding water can easily cause the water surface to fluctuate, which can easily affect the accuracy and reliability of the water-tightness test results to a certain extent. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an automatic water seepage measuring device for a closed water test, which can automatically replenish water to the pipeline to be tested. When the inspector uses the measuring device to perform a closed water test on the pipeline, the closed water test operation can be completed by one person, and the closed water test result obtained is relatively accurate.

[0004] In order to solve the above problems, the present invention provides an automatic water seepage measurement device for closed water test:

[0005] It includes a main body, which can be placed horizontally on the vertical pipe opening of the pipeline to be tested;

[0006] A vertical connecting rod is movably provided on the main body, and a floating piece is installed at the lower end of the connecting rod. The floating piece can float on the water surface and drive the connecting rod to rise and fall relative to the main body as the water surface rises and falls;

[0007] A water pump capable of supplying water to the pipeline is installed on the body, and a power switch of the water pump includes a first metal contact and a second metal contact provided on the top surface of the body, and also includes a conductive member installed on the connecting rod, which is located above the two metal contacts;

[0008] As the water level drops, the floating part drives the connecting rod and the conductive part installed thereon to drop until they touch the two metal contacts, turning on the power switch and the water pump is powered on and started.

[0009] Furthermore, a vertical sleeve extending downward from the bottom surface of the body can be inserted into the pipeline to be tested, with the sleeve opening facing downward, and the float is accommodated in the sleeve.

[0010] Furthermore, a water-permeable sponge is provided at the tube mouth.

[0011] Furthermore, the main body is provided with a plurality of vertically penetrating air-conducting through holes, and these air-conducting through holes are connected to the sleeve.

[0012] Furthermore, a water supply tank is provided on the top surface of the main body, and the water pump system supplies water in the water supply tank to the pipeline to be tested.

[0013] Furthermore, the water pump is equipped with a water supply pipe that can extend into the pipeline to be tested, and is correspondingly equipped with a flow meter to measure the water flowing through the water supply pipe.

[0014] Furthermore, the body and / or the connecting rod are both made of insulating material.

[0015] Furthermore, the conductive member is detachably mounted on the connecting rod in an interference fit manner.

[0016] Furthermore, it includes at least two supporting feet arranged on the edge of the body, and the height of the supporting feet is adjustable.

[0017] Furthermore, it includes a plurality of levels arranged on the top surface of the body.

[0018] Beneficial effect: Before conducting a closed water test, the test personnel first place the automatic water seepage measuring device for closed water test of the utility model on the pipe mouth of the pipe to be tested, so that the float of the measuring device extends into the pipe mouth, and then injects water into the closed pipe to be tested until the water level in the pipe reaches the standard, so that the water in the pipe mouth lifts the float and allows the float to float on the water surface. At this time, the water level at the pipe mouth is the initial height. At this point, the preparation before the test is completed and the closed water test can be started. At this time, the conductive part installed on the connecting rod is located above the two metal contacts and is not in contact with the two metal contacts. The power switch of the water pump is in the disconnected state. If the pipeline has airtight defects such as water seepage and leakage, the water level at the pipe mouth will drop after a period of testing. As the water level at the pipe orifice drops, the float drives the connecting rod and the conductive member mounted thereon down until the bottom surface of the conductive member touches two metal contacts, which turns on the power switch and the water pump is powered on. The water pump then powers on and starts supplying water to the pipe orifice to replenish the water, causing the water level in the pipe to rise. As the water level rises, the float drives the connecting rod and the conductive member mounted thereon up. When the conductive member rises and clears the two metal contacts, the power switch is disconnected, the water pump is powered off, and replenishment of water to the pipe orifice is stopped. During the entire water-tightness test, the measuring device of the present invention can automatically replenish water to the pipe orifice of the tested pipe. The tester only needs to perform a timing operation, eliminating the need to visually observe the water level and manually replenish water as in the prior art. Therefore, the water-tightness test can be completed by a single person. After the test is completed, the tester can calculate the test results by obtaining data such as the total water replenishment volume of the water pump and the test time. Because there is no need to visually observe the water level, errors are less likely to occur during the test, resulting in more accurate test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the automatic water seepage measurement device used for closed water test.

[0020] Figure 2 This is a schematic diagram of the structure of an automatic water seepage measurement device used for a closed water test from a top view.

[0021] Figure 3 It is along Figure 2 Schematic cross-sectional view in the AA direction.

[0022] Figure 4 This is a schematic diagram of the structure of the automatic water seepage measurement device used for closed water test (after hiding the water supply tank) from another perspective.

[0023] Figure 5 yes Figure 4 Magnified view of part B.

[0024] Figure 6This is a schematic diagram of the structure of an automatic water seepage measurement device used for a closed water test placed on the pipe mouth of the pipe to be tested.

[0025] Explanation of symbols:

[0026] 1-main body; 11-sleeve; 12-air guide hole; 21-support foot; 22-level; 31-connecting rod; 32-floating part; 4-water tank; 5-water pump; 51-power switch; 511-first metal contact; 512-second metal contact; 513-conductive part; 6-power supply; 71-water supply pipe; 72-flow meter; 8-permeable sponge; 9-pipeline to be tested; 91-pipe mouth. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with specific embodiments.

[0028] Automatic water seepage measurement device for closed water test Figure 1 , including a horizontal plate-shaped insulating body 1, with four supporting legs 21 installed on the edge of the body 1. These supporting legs 21 are detachably screwed to the body 1 and can adjust their own height. Four levels 22 are installed at the four corners of the top surface of the body 1. By adjusting the height of the four supporting legs 21 so that the four levels 22 are all in a horizontal state, the body 1 can be placed horizontally. The center of the bottom surface of the body 1 partially extends downward to form a vertical sleeve 11 (combined with Figure 3 ), the sleeve 11 is facing downward. The vertical connecting rod 31 is made of insulating rubber or other insulating materials, and is movably provided at the center of the body 1 so as to be able to move up and down relative to the body 1. The lower end of the connecting rod 31 passes through the body 1 and extends into the sleeve 11 for accommodation. Figure 3 The spherical float 32 is installed at the lower end of the connecting rod 31 and is also accommodated in the sleeve 11.

[0029] A water supply tank 4 with the box opening facing upward is installed on the top surface of the main body 1, and a water pump 5 is installed at the bottom of the water supply tank 4 (see Figure 2 ); A power supply 6 is installed on the top surface of the body 1. The power switch 51 of the water pump 5 is shown Figure 5 , including a first metal contact 511 and a second metal contact 512 provided at the center of the top surface of the body 1, the two metal contacts 511 and 512 are arranged at intervals, wherein the first metal contact 511 is electrically connected to the water pump 5 (see Figure 4 ) and the second metal contact 512 is electrically connected to the power supply 6 (see Figure 4). The power switch 51 also includes a ring-shaped metal conductive part 513, which is detachably mounted on the connecting rod 31 in an interference fit manner and is located above the two metal contacts 511 and 512. As the connecting rod 31 descends relative to the main body 1 until the bottom surface of the conductive part 513 touches the two metal contacts 511 and 512, the first metal contact 511 is connected to the second metal contact 512 through the conductive part 513, so that the power switch 51 of the water pump 5 is turned on. At this time, the power supply 6 and the water pump 5 are electrically connected through the first metal contact 511, the conductive part 513 and the second metal contact 512, and the water pump 5 is powered on and started. See Figure 4 The water pump 5 is equipped with a water supply pipe 71, which passes through the water supply tank 4 (combined with Figure 3 ) after the bottom of the tank and the main body 1, and then extending to the bottom of the main body 1. In this way, when the water pump 5 is powered on and started, it can pump the water in the water supply tank 4 along the water supply pipe 71 to the bottom of the main body 1. The water supply pipe 71 is connected to a flow meter 72, which is located below the main body 1 and can measure the water flowing through the water supply pipe 71 and display the reading.

[0030] Before conducting the closed water test, the test personnel should first install the automatic water seepage measuring device for closed water test of the utility model. Figure 6 As shown, it is placed on the vertical pipe mouth 91 of the pipe to be tested 9, so that the water supply pipe 71, the sleeve 11 and the float 32 in the sleeve 11 are all extended into the vertical pipe mouth 91 of the pipe to be tested 9, and then the four spirit levels 22 on the main body 1 are adjusted to a horizontal state by adjusting the four supporting feet 21 on the main body 1, and the main body 1 is horizontally placed on the vertical pipe mouth 91 of the pipe to be tested 9. Then, the inspector injects water into the pipe to be tested 9 until the water level at the pipe mouth 91 of the pipe to be tested 9 meets the standard. At this time, the water surface height at the middle pipe mouth 91 is the initial height; the water in the pipe 9 enters the sleeve 11 through the mouth of the sleeve 11, thereby supporting the float 32 upwards, and the float 32 floats on the water surface and rises and falls with the water surface in the sleeve 11. In order to ensure that the water level inside and outside the sleeve 11 is consistent, four vertically penetrating air guide holes 12 are opened on the main body 1 (see Figure 3 and Figure 5 ), these air-conducting holes 12 are connected to the sleeve 11, so that the air pressure inside and outside the sleeve 11 is balanced. After the float 32 is stable, the inspector adjusts the conductive member 513 (see Figure 5) on the connecting rod 31 (the connecting rod 31 is made of rubber and has a certain degree of elasticity, which facilitates the adjustment of the position of the conductive member 513), so that the conductive member 513 is slightly higher than the top surface of the two metal contacts 511 and 512 (for example, slightly higher by 1 to 5 mm, which is within the reasonable error range of the water level). Then, the tester can pour sufficient clean water into the water supply tank 4. At this point, the pre-test preparations are completed and the closed water test can begin. During the closed water test, if the pipeline 9 to be tested has airtightness defects such as water seepage or leakage, the water level in the pipe mouth 91 will drop after a period of testing. As the water level drops, the float 32 drives the connecting rod 31 and the conductive member 513 mounted thereon downward until the bottom surface of the conductive member 513 touches the two metal contacts 511 and 512, which turns on the power switch 51 of the water pump 5. The water pump 5 is then powered on and starts pumping water from the water replenishment tank 4 along the water supply pipe 71 to the nozzle 91 of the test pipe 9 below the main body 1 to replenish the water. The water level in the nozzle 91 rises, and the float 32, as the water level rises, drives the connecting rod 31 and the conductive member 513 mounted thereon upward. When the conductive member 513 rises and clears the two metal contacts 511 and 512, the power switch 51 is turned off, the water pump 5 is powered off, and the water supply to the nozzle 91 stops. During the entire water-tightness test, the measuring device of the present invention continuously repeats the above-mentioned water-replenishing operation, thereby automatically replenishing water to the nozzle 91 of the tested pipe 9. The tester only needs to perform the timing operation, and there is no need to visually observe the water level and manually replenish water as in the background art. Therefore, the water-tightness test operation can be completed by a single person. After the water-tightness test is completed, the tester can obtain the total water replenishment volume of the water pump 5 by reading the number displayed by the flow meter 72 on the water supply pipe 71, and calculate the water-tightness test result based on the test time and other data. Since there is no need for the tester to visually observe the water level, errors are less likely to occur during the water-tightness test, and the obtained water-tightness test result is more accurate.

[0031] In this embodiment, the lower end of the water supply pipe 71 extends into the water at the nozzle 91. When the water pump 5 replenishes water at the nozzle 91, the water surface is less likely to fluctuate, and the float 32 in the sleeve 11 is also less likely to fluctuate. More preferably, a permeable sponge 8 is provided at the nozzle of the sleeve 11. During the replenishment process, the water added to the nozzle 91 is cushioned by the permeable sponge 8, which less likely disturbs the water surface within the sleeve 11, making the water surface within the sleeve 11 less likely to fluctuate.

[0032] The above is only an embodiment of the present invention and does not limit the scope of patent protection. Those skilled in the art can make non-substantial changes or substitutions based on the present invention and still fall within the scope of patent protection.

Claims

1. An automatic water seepage measurement device for a closed water test, characterized in that: It includes a main body, which can be placed horizontally on the vertical pipe opening of the pipeline to be tested; A vertical connecting rod is movably provided on the main body, and a floating piece is installed at the lower end of the connecting rod. The floating piece can float on the water surface and drive the connecting rod to rise and fall relative to the main body as the water surface rises and falls; A water pump capable of supplying water to the pipeline is installed on the body, and a power switch of the water pump includes a first metal contact and a second metal contact provided on the top surface of the body, and also includes a conductive member installed on the connecting rod, which is located above the two metal contacts; As the water level drops, the floating part drives the connecting rod and the conductive part installed thereon to drop until they touch the two metal contacts, turning on the power switch and the water pump is powered on and started.

2. The automatic measuring device according to claim 1, wherein A vertical sleeve extending downward from the bottom surface of the body can be inserted into the pipeline to be tested, with the sleeve opening facing downward, and the float is accommodated in the sleeve.

3. The automatic measuring device according to claim 2, wherein: A water-permeable sponge is provided at the tube mouth.

4. The automatic measuring device according to claim 2, wherein: The main body is provided with a plurality of vertically penetrating air-conducting through holes, which are connected to the sleeve.

5. The automatic measuring device according to claim 1, wherein: A water supply tank is provided on the top surface of the main body, and the water pump system supplies water in the water supply tank to the pipeline to be tested.

6. The automatic measuring device according to claim 5, wherein: The water pump is equipped with a water supply pipe that can extend into the pipeline to be tested, and is correspondingly equipped with a flow meter to measure the water flowing through the water supply pipe.

7. The automatic measuring device according to claim 1, wherein: The body and / or the connecting rod are both made of insulating material.

8. The automatic measuring device according to claim 1, wherein: The conductive member is detachably mounted on the connecting rod in an interference fit manner.

9. The automatic measuring device according to claim 1, wherein: It comprises at least two supporting feet arranged on the edge of the body, and the height of the supporting feet is adjustable.

10. The automatic measuring device according to claim 1, wherein: It includes a plurality of levels arranged on the top surface of the body.

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