A device for water head supplement of pipe network closed water test
By designing a device for measuring components and water replenishment components, the problems of large water level observation errors and inconvenience of manual water replenishment in traditional water tightness tests are solved, achieving the effects of high-precision water level observation and convenient water replenishment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAINAN WATER RESOURCES & HYDRO POWER CONSTR SURVEYING & MAPPING DESIGN INST
- Filing Date
- 2025-05-27
- Publication Date
- 2026-06-12
AI Technical Summary
Traditional water tightness tests suffer from large errors in water level observation and are inconvenient for manual water replenishment, failing to meet the specifications' requirements for accurate readings.
A device comprising a measuring component and a water replenishment component has been designed. The measuring component includes a measuring tube and a drain valve, while the water replenishment component includes a mounting base, a valve body, and a valve core. High-precision water level observation and convenient water replenishment are achieved through the precise control of the glass tube scale and the valve core.
It enables high-precision water level observation and convenient water replenishment operations, reduces errors, and meets the standard requirements for reading accuracy.
Smart Images

Figure CN224353985U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water supply and drainage pipeline engineering testing technology, specifically a device for replenishing water head during pipeline network water tightness tests. Background Technology
[0002] Inspection of water supply and drainage pipeline projects is a key link in ensuring the safe operation of urban drainage systems. Among them, the water tightness test is the core method for verifying the sealing performance of unpressurized pipelines and must be strictly implemented in accordance with GB50268-2008 "Code for Construction and Acceptance of Water Supply and Drainage Pipeline Projects".
[0003] Current head control and observation technologies for water tightness tests have significant shortcomings: First, regarding head replenishment, when the test head exceeds the wellhead height, traditional methods suffer from insufficient accuracy in water level observation, relying on tape measure measurements or visual estimation, resulting in large errors and failing to meet the specifications' requirements for reading accuracy. Second, during water replenishment, the test head exceeds the wellhead height, making manual replenishment inconvenient. Therefore, a device for head replenishment in pipeline network water tightness tests is proposed to address these issues. Utility Model Content
[0004] The purpose of this invention is to provide a device for replenishing water head in pipeline water tightness tests. It has the advantages of high-precision water level observation and convenient water replenishment operation, and solves the problems of large water level observation error, inconvenience of manual water replenishment, and inability to meet the standard requirements for reading accuracy in traditional water tightness tests.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for replenishing water head during a pipe network water tightness test, comprising a measuring component and a water replenishment component connected to one side of the measuring component, wherein the measuring component includes a measuring tube, and a drain valve is connected to the bottom of the measuring tube;
[0006] The water replenishment component includes a mounting base and a valve body mounted on the mounting base. The valve body has an inlet end and an outlet end on its outer side, and the included angle between the inlet end and the outlet end is ninety degrees.
[0007] The valve core is rotatably installed inside the valve body. The bottom of the valve core adopts an open structure design. The valve core is provided with a first reserved hole and a second reserved hole. The opening positions of the first reserved hole and the second reserved hole are respectively matched with the opening positions of the water inlet end and the water outlet end.
[0008] Preferably, the bottom of one side of the measuring tube is open and connected to a connecting branch pipe, the measuring tube contains a glass tube with graduations, and the front of the measuring tube has a slot for displaying the graduations on the glass tube.
[0009] The design features a bottom opening on one side of the measuring tube connected to a connecting branch pipe, a glass tube with internal graduations, and a slot on the front for displaying the graduations. This allows for precise water level observation through the graduations on the glass tube, transforming traditional tape measure or visual estimation into intuitive and accurate graduation readings. This significantly improves the accuracy of water level observation and meets the requirements of the standard for reading accuracy.
[0010] Preferably, the end of the connecting branch pipe opposite to the measuring pipe is connected to the water outlet end via a flange.
[0011] In the design, the end of the connecting branch pipe away from the measuring pipe is connected to the water outlet end through a flange, which realizes a stable and easy-to-disassemble connection between the measuring component and the water supply component, facilitating the assembly, debugging and maintenance of the device, while ensuring the sealing and stability of the water flow from the water supply component to the measuring component.
[0012] Preferably, an adjustment module is installed on the top of the valve body. The adjustment module is used to adjust the angle of the valve core in the valve body and adjust the relative positions of the first reserved hole and the second reserved hole with respect to the inlet and outlet ends.
[0013] In the design, the adjustment module installed on the top of the valve body enables the adjustment of the relative positions of the first and second reserved holes with respect to the inlet and outlet ends by adjusting the angle of the valve core inside the valve body. This allows for precise control of the flow of water, making the water replenishment operation more convenient and controllable.
[0014] Preferably, the water inlet end is provided with a pagoda head, which is designed with pure copper material and is used to connect the water inlet pipe hose.
[0015] In the design, the inlet end uses a pagoda head made of pure copper, which enables convenient and secure connection to the inlet hose. Pure copper has good corrosion resistance and strength, ensuring the reliability and service life of the connection. At the same time, the special structure of the pagoda head helps to quickly insert and remove the hose, improving the efficiency of water replenishment.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] This utility model achieves high-precision water level observation and convenient water replenishment operation by setting a measuring tube in the measuring component and installing a drain valve at the bottom of the measuring tube, while cooperating with the mounting base, valve body, and valve core rotatably installed in the water replenishment component and having a first reserved hole and a second reserved hole that match the positions of the water inlet and water outlet.
[0018] The measuring tube provides a stable space for water level observation, and the drain valve facilitates drainage after the test. In the water replenishment component, by rotating the valve core, the water flow can be precisely controlled from the inlet end through the reserved hole of the valve core to the outlet end, avoiding the inconvenience of manual operation and realizing convenient water replenishment. Moreover, the entire structure is reasonably designed, changing the traditional method of relying on tape measure or visual estimation to estimate the water level, reducing errors, meeting the requirements of the standard for reading accuracy, and effectively solving the problems of large water level observation errors and inconvenience of manual water replenishment in traditional water tightness tests. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the measuring component structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the water replenishment component structure of this utility model;
[0022] Figure 4 This is a cross-sectional structural diagram of the water replenishment component of this utility model.
[0023] In the diagram: 1. Measuring component; 11. Measuring tube; 111. Glass tube; 112. Connecting branch pipe; 12. Drain valve; 2. Water supply component; 21. Valve body; 22. Mounting base; 211. Water inlet; 212. Water outlet; 23. Adjustment module; 24. Valve core; 241. First reserved hole; 242. Second reserved hole. 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. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example
[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, one embodiment of the present invention is provided: a device for replenishing water head during a water tightness test of a pipeline network, including a measuring component 1 and a water replenishment component 2 connected to one side of the measuring component 1. The measuring component 1 includes a measuring tube 11, and a drain valve 12 is connected to the bottom of the measuring tube 11.
[0026] Water replenishment component 2 includes mounting base 22 and valve body 21 mounted on mounting base 22. The valve body 21 has an inlet end 211 and an outlet end 212 on its outer side, and the included angle between the inlet end 211 and the outlet end 212 is 90 degrees.
[0027] A valve core 24 is rotatably installed inside the valve body 21. The bottom of the valve core 24 adopts an open structure design. The valve core 24 is provided with a first reserved hole 241 and a second reserved hole 242. The opening positions of the first reserved hole 241 and the second reserved hole 242 are respectively matched with the opening positions of the water inlet end 211 and the water outlet end 212.
[0028] Specifically, by setting up a measuring tube 11 in the measuring component 1, and connecting and installing a drain valve 12 at the bottom of the measuring tube 11, and cooperating with the mounting base 22, valve body 21, and valve core 24 rotatably installed in the water replenishment component 2 and having a first reserved hole 241 and a second reserved hole 242 that match the positions of the water inlet end 211 and the water outlet end 212, the effect of high-precision water level observation and convenient water replenishment operation is achieved.
[0029] The measuring tube 11 provides a stable space for water level observation, and the drain valve 12 facilitates drainage after the test. In the water replenishment component 2, by rotating the valve core 24, the water flow can be precisely controlled from the inlet end 211 through the reserved hole of the valve core 24 to the outlet end 212, avoiding the inconvenience of manual operation and realizing convenient water replenishment. Moreover, the entire structure is reasonably designed, changing the traditional method of relying on tape measure or visual estimation to estimate the water level, reducing errors, meeting the requirements of the standard for reading accuracy, and effectively solving the problems of large water level observation errors and inconvenience of manual water replenishment in traditional water tightness tests. Example
[0030] To achieve high-precision water level monitoring, such as Figure 1 and Figure 2 As shown, in this embodiment, the bottom of one side of the measuring tube 11 is open and connected to a connecting branch pipe 112. The measuring tube 11 has a glass tube 111 inside, and the glass tube 111 has a scale. The front of the measuring tube 11 has a slot for displaying the scale on the glass tube 111.
[0031] Specifically, the measuring tube 11 has an opening at the bottom on one side and is connected to a connecting branch pipe 112, as well as a glass tube 111 with internal graduations and a slot on the front for displaying the graduations. This enables precise observation of the water level through the graduations on the glass tube 111, transforming traditional tape measure measurement or visual estimation into intuitive and accurate graduation readings, significantly improving the accuracy of water level observation and meeting the requirements of the standard for reading accuracy.
[0032] Furthermore, the end of the connecting branch pipe 112 away from the measuring pipe 11 is connected to the water outlet 212 via a flange.
[0033] Specifically, the end of the connecting branch pipe 112 away from the measuring pipe 11 is connected to the water outlet 212 through a flange, which realizes a stable and easy-to-disassemble connection between the measuring component 1 and the water supply component 2, which facilitates the assembly, debugging and maintenance of the device, while ensuring the sealing and stability of the water flow from the water supply component 2 to the measuring component 1. Example
[0034] To achieve convenient and precise hydration, such as Figure 3 and Figure 4 As shown, in this embodiment, an adjustment module 23 is installed on the top of the valve body 21. The adjustment module 23 is used to adjust the angle of the valve core 24 inside the valve body 21 and to adjust the relative positions of the first reserved hole 241 and the second reserved hole 242 with the water inlet end 211 and the water outlet end 212.
[0035] Specifically, the adjustment module 23 installed on the top of the valve body 21 enables the adjustment of the relative positions of the first reserved hole 241 and the second reserved hole 242 with the water inlet end 211 and the water outlet end 212 by adjusting the angle of the valve core 24 inside the valve body 21, thereby precisely controlling the flow of water and making the water replenishment operation more convenient and controllable.
[0036] Furthermore, a pagoda head is provided at the water inlet end 211. The pagoda head is made of pure copper and is used to connect the water inlet hose.
[0037] Specifically, the inlet end 211 uses a pagoda head made of pure copper, which enables convenient and secure connection to the inlet hose. Pure copper has good corrosion resistance and strength, ensuring the reliability and service life of the connection. At the same time, the special structure of the pagoda head helps to quickly insert and remove the hose, improving the efficiency of water replenishment operations.
[0038] In use, the pure copper pagoda-shaped head is connected to the inlet hose, ensuring a secure connection to prevent leakage. The position of the valve core 24 is adjusted using the adjustment module 23 to disconnect the first and second pre-drilled holes 241 and 242 from the inlet end 211 and outlet end 212, preventing accidental water leakage during installation. Then, the measuring component 1 and the water supply component 2 are connected to the flange of the connecting branch pipe 112 and the outlet end 212, ensuring a tight connection. The overall installation of the device is then checked for stability.
[0039] Connect the device to the pipeline system to be tested via the mounting base 22, ensuring a good seal. Then, rotate the valve core 24 using the adjustment module 23 to align the first reserved hole 241 with the water inlet 211 and the second reserved hole 242 with the water outlet 212. Turn on the water supply; water flows from the water inlet 211 through the first reserved hole 241, inside the valve core 24, and then through the second reserved hole 242 to the water outlet 212, flowing into the measuring tube 11 and the pipeline system, thus filling the pipeline with water. Observe the scale on the glass tube 111 inside the measuring tube 11. When the water level reaches the required test height, rotate the valve core 24 using the adjustment module 23 to cut off the water flow and stop water replenishment.
[0040] During the water tightness test, the scale on the glass tube 111 is observed directly through the slot on the front of the measuring tube 11 to obtain accurate water level data and record the water level changes, thereby judging the sealing performance of the pipe network.
[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A device for replenishing water head during a water tightness test in a pipeline network, comprising a measuring component (1) and a water replenishment component (2) connected to one side of the measuring component (1), characterized in that: The measuring component (1) includes a measuring tube (11), and a drain valve (12) is connected to the bottom of the measuring tube (11). The water replenishment component (2) includes a mounting base (22) and a valve body (21) mounted on the mounting base (22). The valve body (21) has an inlet end (211) and an outlet end (212) on its outer side. The included angle between the inlet end (211) and the outlet end (212) is ninety degrees. A valve core (24) is rotatably installed inside the valve body (21). The bottom of the valve core (24) adopts an open structure design. The valve core (24) is provided with a first reserved hole (241) and a second reserved hole (242). The opening positions of the first reserved hole (241) and the second reserved hole (242) are respectively matched with the opening positions of the water inlet end (211) and the water outlet end (212).
2. The device for replenishing water head during a pipeline water tightness test according to claim 1, characterized in that, The measuring tube (11) has an opening at the bottom on one side and is connected to a connecting branch pipe (112). Inside the measuring tube (11) is a glass tube (111) with a scale on it. The front of the measuring tube (11) has a slot for displaying the scale on the glass tube (111).
3. The device for replenishing water head during a pipeline water tightness test according to claim 2, characterized in that, The end of the connecting branch pipe (112) facing away from the measuring pipe (11) is connected to the water outlet (212) via a flange.
4. The device for replenishing water head during a pipeline water tightness test according to claim 1, characterized in that, An adjustment module (23) is installed on the top of the valve body (21). The adjustment module (23) is used to adjust the angle of the valve core (24) inside the valve body (21) and adjust the relative positions of the first reserved hole (241) and the second reserved hole (242) with the water inlet (211) and the water outlet (212).
5. The device for replenishing water head during a pipeline water tightness test according to claim 1, characterized in that, The water inlet (211) is provided with a pagoda head, which is made of pure copper and is used to connect the water inlet hose.