A water meter flow sensitivity testing device

Abstract

The utility model discloses a water meter smooth sensitivity testing arrangement, and testing pipe section is vertically arranged on the front side of support frame board, and testing pipe section includes two straight pipes and two flow -around pipe sections, two locking mechanisms are installed on the front side surface of support frame board, two straight pipes are fixed and clamped respectively by two locking mechanisms, and the water receiving bucket is placed on the base, the utility model discloses setting locking mechanism on one side of support frame board, and locking mechanism can fix testing pipe section quickly, and the whole testing device is simple in structure, and convenient to install and dismount, reduces the cumbersome nature of operation, improves the work efficiency of testing, can control the on-off of waterway through the tee joint, makes water to pass through straight pipe or flow -around pipe section, changes the smooth characteristic of water flow through the bend structure of flow -around pipe section, compares the water meter test value of water through straight pipe and flow -around pipe section, thereby can examine the anti -interference ability of water meter under different flow field conditions.

Description

Technical Field

[0001] This utility model relates to the field of water meter testing technology, specifically a water meter flow sensitivity testing device. Background Technology

[0002] Water meters are instruments used to measure water flow and play a vital role in water supply systems. However, in actual use, water meter readings can be affected by changes in the water flow field. For example, when water flows through bends or other structures, the flow field characteristics change, thus affecting the accuracy of the water meter readings. Currently, there is a lack of specialized testing equipment for water meters' resistance to interference under turbulent flow conditions, making it difficult to comprehensively evaluate water meter performance. Existing water meter stands cannot test the error of water meters at different installation angles. Due to the viscosity of fluids, there is a certain velocity difference between the inner wall of the water meter pipe section and the center of the pipe section, leading to inaccurate readings. The measurement accuracy of water meters directly affects the economic benefits of water supply companies and users; therefore, testing the flow sensitivity of water meters is particularly important.

[0003] Therefore, this utility model provides a water meter flow sensitivity testing device to solve the above problems. Utility Model Content

[0004] This invention provides a water meter flow sensitivity testing device, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A water meter flow sensitivity testing device includes a base and a water meter, and also includes a support frame, a water filling tank, a water receiving tank and a test pipe section; The test tube section is vertically arranged in front of the support frame plate, and the test tube section includes two straight tubes and two flow bypass tube sections; The support frame plate is vertically fixed on the base. Both ends of the straight pipe are threaded with tee connectors. A flow-turbing pipe section is connected between the tee connectors at both ends of the straight pipe. The water inlets at both ends of the water meter are threadedly connected to the tee connectors at one end of the two straight pipes, respectively. Two locking mechanisms are installed on the front surface of the support frame plate, and the two locking mechanisms respectively fix and clamp the two straight tubes; The water receiving bucket is placed on the base to collect the liquid flowing out of the straight pipe below the water meter; The water receiving bucket is fixedly installed on the upper part of the support frame plate, and the bottom of the water receiving bucket is connected to a water injection pipe section. The lower end of the water injection pipe section is inserted into a straight pipe above the water meter.

[0006] Preferably, the locking mechanism includes two sliding plates. The front side of the support frame plate has horizontally opened sliding grooves on both sides of the straight tube. The sliding plates are slidably installed in the sliding grooves. Semi-circular locking plates are fixedly installed on opposite sides of the two sliding plates. Pushing mechanisms are installed on both sides of the support frame plate at the sliding groove positions. The pushing mechanisms are used to push the corresponding sliding plates to move. A spring is fixedly installed on the side of the sliding plate away from the pushing mechanism. One end of the spring is fixedly connected to the inside of the sliding groove.

[0007] Preferably, the pushing mechanism is a knob bolt, and the support frame plate has threaded holes with connecting sliding grooves on both sides, and the knob bolt is installed in the threaded holes.

[0008] Preferably, a water supply pipe is fixedly installed on the back of the support frame plate, with the water outlet at the upper end of the water supply pipe facing the inside of the water tank, and the water inlet at the lower end of the water supply pipe connected to a water pump, which is used to pump external water into the water tank through the water supply pipe.

[0009] Preferably, the tee joint is equipped with a ball valve.

[0010] Preferably, both the water filling bucket and the water receiving bucket are made of transparent material and have water level markings on their surfaces.

[0011] Preferably, the bottom of the water injection tank is funnel-shaped.

[0012] Preferably, the two ends of the turbulence-disrupting pipe section are provided with 90° bend pipe sections.

[0013] Preferably, the top and bottom of the slide opening are provided with limiting grooves along the length direction, and the upper and lower surfaces of the slide plate are fixedly provided with sliding ribs inserted into the corresponding limiting grooves.

[0014] Preferably, a water guide plate is fixedly installed at the lower front end of the support frame plate, and the water guide plate is inclined downward toward the water receiving bucket.

[0015] This invention features a locking mechanism on one side of the support frame, which quickly secures the test pipe section. The entire testing device has a simple structure, is easy to install and disassemble, reduces operational complexity, and improves testing efficiency. The water flow can be controlled via a three-way connector, allowing water to pass through straight pipes or turbulent pipe sections. The bends in the turbulent pipe sections alter the flow characteristics of the water. By comparing the water meter readings after water passes through straight pipes and turbulent pipe sections, the anti-interference capability of the water meter under different flow field conditions can be verified. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a water meter flow sensitivity testing device. Figure 2 A side view of a water meter flow sensitivity testing device; Figure 3 This is a structural diagram of the locking mechanism of this utility model.

[0017] In the picture: 1. Base; 2. Support frame plate; 21. Slide groove; 22. Water guide plate; 3. Water meter; 31. Straight pipe; 32. T-joint; 33. Baffle pipe section; 34. Water injection pipe section; 4. Water receiving bucket; 5. Water injection bucket; 6. Locking mechanism; 61. Slide plate; 62. Semi-circular clamping plate; 63. Sliding rib; 64. Spring; 7. Pushing mechanism; 8. Water pump; 9. Water supply pipe. Detailed Implementation

[0018] 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.

[0019] See Figures 1-2 As shown, this utility model provides a water meter flow sensitivity testing device, including a base 1 and a water meter 3, and also includes a support frame plate 2, a water filling tank 5, a water receiving tank 4 and a test pipe section; The test tube section is vertically arranged on the front side of the support frame plate 2. The test tube section includes two straight pipes 31 and two flow bypass pipe sections 33. The support frame plate 2 is a long plate structure, which is vertically fixed on the base 1. Both ends of the straight pipe 31 are threaded with a three-way connector 32. A flow-disrupting pipe section 33 is connected between the three-way connectors 32 at both ends of the straight pipe 31. The water inlets at both ends of the water meter 3 are threadedly connected to the three-way connectors 32 at one end of the two straight pipes 31 respectively. Two locking mechanisms 6 are installed on the front surface of the support frame plate 2, and the two locking mechanisms 6 respectively fix and clamp the two straight tubes 31; The water receiving bucket 4 is placed on the base 1 to receive the liquid flowing out of the straight pipe 31 below the water meter 3; The water receiving bucket 4 is fixedly installed on the upper end of the support frame plate 2. The bottom of the water receiving bucket 4 is connected to a water injection pipe section 34, and the lower end of the water injection pipe section 34 is inserted into the straight pipe 31 above the water meter 3.

[0020] like Figure 1 and Figure 3As shown, in this embodiment, the locking mechanism 6 includes two sliding plates 61. The front side of the support frame plate 2 has horizontally opened sliding grooves 21 on both sides of the straight tube 31. The sliding plates 61 are slidably installed in the sliding grooves 21. Semicircular locking plates 62 are fixedly installed on opposite sides of the two sliding plates 61. Pushing mechanisms 7 are installed on both sides of the support frame plate 2 at the sliding grooves 21. The pushing mechanisms 7 are used to push the corresponding sliding plates 61 to move. A spring 64 is fixedly installed on the side of the sliding plate 61 away from the pushing mechanism 7. One end of the spring 64 is fixedly connected to the inside of the sliding groove 21. When it is necessary to disassemble the test tube section, the pushing mechanism 7 is disengaged from the sliding plate 61. The sliding plate 61 moves outward by the elastic force of the spring 64. At this time, the straight tube 31 can be easily disengaged from the support frame plate 2.

[0021] In order to push the slide plate 61, in this embodiment, the pushing mechanism 7 is a knob bolt, and the support frame plate 2 has threaded holes on both sides that connect to the slide groove 21, and the knob bolt is installed in the threaded holes.

[0022] Furthermore, to facilitate the addition of water for testing, in this embodiment, a water supply pipe 9 is fixedly installed on the back of the support frame plate 2. The water outlet at the upper end of the water supply pipe 9 faces into the water tank 5, and the water inlet at the lower end of the water supply pipe 9 is connected to a water pump 8. The water pump 8 is used to pump external water into the water tank 5 through the water supply pipe 9. The water pump 8 can be turned on by a remote control switch.

[0023] In this embodiment, the three-way connector 32 is equipped with a ball valve, which can control the flow and direction of water in the pipeline.

[0024] To facilitate observation of the water level, in this embodiment, both the water filling tank 5 and the water receiving tank 4 are made of transparent material and have water level markings on their surfaces.

[0025] Furthermore, in order to ensure that the water in the water injection tank 5 can flow out completely, in this embodiment, the bottom of the water injection tank 5 is funnel-shaped, and a hydrophobic layer or nano-layer can be provided on its surface to prevent water from sticking and improve the detection accuracy. A support shaft is fixedly installed at the bottom of the water injection tank 5. The support shaft is fixedly connected to the upper end of the support frame plate 2 by screws or welding, thereby facilitating the installation of the water injection pipe section 34 at the bottom of the water injection tank 5.

[0026] Specifically, in this embodiment, the two ends of the turbulence-disrupting pipe section 33 are provided with 90° bend pipe sections. Depending on the requirements, the bend pipe sections at both ends of the turbulence-disrupting pipe section 33 can also be designed to other angles.

[0027] Furthermore, in order to increase the smoothness of the sliding plate 61 and prevent it from detaching from the slide groove 21, in this embodiment, the top and bottom of the slide groove 21 are provided with limiting grooves along the length direction, and the upper and lower surfaces of the sliding plate 61 are fixedly provided with sliding ribs 63 inserted into the corresponding limiting grooves.

[0028] Furthermore, in order to ensure that the outflowing water can be completely collected by the water receiving bucket 4, in this embodiment, a water guide plate 22 is fixedly installed at the lower front end of the support frame plate 2. The water guide plate 22 is inclined downward towards the water receiving bucket to facilitate water collection.

[0029] The specific operating steps are as follows: Connect water pump 8 to the tap water pipe, pump water into water tank 5 through water pump 8, observe the water level in water tank 5, turn off water pump 8, keep the water level in water tank 5 at a suitable position, open the three-way connector 32, and let the water flow directly into water meter 3 through straight pipe 31. When the water in water tank 5 is empty, record the water meter value; then perform a water meter turbulence test, inject the same volume of water into water tank 5 through water pump 8 as above, adjust the ball valve of three-way connector 32, close the inlet and outlet of straight pipe 31, the water will flow through turbulence pipe section 33 and then flow through the water meter under test 3, and finally flow out. The 90° bend structure of turbulence pipe section changes the smoothness of water flow. When the water in water tank 5 is empty, record the water meter value again, compare the two test values, and thus verify the anti-interference ability of water meter 3 under different flow field conditions.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A water meter flow sensitivity testing device, comprising a base and a water meter, characterized in that: It also includes support frame plates, water injection tanks, water receiving tanks, and test pipe sections; The test tube section is vertically installed on the front side of the support frame plate. The test tube section includes two straight tubes and two flow bypass tube sections. The support frame plate is vertically fixed on the base. Both ends of the straight pipe are threaded with tee connectors. A flow-turbing pipe section is connected between the tee connectors at both ends of the straight pipe. The water inlets at both ends of the water meter are threadedly connected to the tee connectors at one end of the two straight pipes, respectively. Two locking mechanisms are installed on the front surface of the support frame plate, and the two locking mechanisms respectively fix and clamp the two straight tubes; The water receiving bucket is placed on the base to collect the liquid flowing out of the straight pipe below the water meter; The water receiving bucket is fixedly installed on the upper part of the support frame plate, and the bottom of the water receiving bucket is connected to a water injection pipe section. The lower end of the water injection pipe section is inserted into a straight pipe above the water meter.

2. The water meter flow sensitivity testing device according to claim 1, characterized in that: The locking mechanism includes two sliding plates. The front side of the support frame plate has horizontally opened sliding grooves on both sides of the straight tube. The sliding plates are slidably installed in the sliding grooves. Semi-circular locking plates are fixedly installed on opposite sides of the two sliding plates. Pushing mechanisms are installed on both sides of the support frame plate at the sliding groove positions. The pushing mechanisms are used to push the corresponding sliding plates to move. A spring is fixedly installed on the side of the sliding plate away from the pushing mechanism. One end of the spring is fixedly connected to the inside of the sliding groove.

3. The water meter flow sensitivity testing device according to claim 2, characterized in that: The jacking mechanism is a knob bolt, and the support frame plate has threaded holes on both sides that connect to the sliding groove, and the knob bolt is installed in the threaded holes.

4. The water meter flow sensitivity testing device according to claim 1, characterized in that: A water supply pipe is fixedly installed on the back of the support frame plate. The water outlet at the upper end of the water supply pipe faces into the water tank, and the water inlet at the lower end of the water supply pipe is connected to a water pump. The water pump is used to pump external water into the water tank through the water supply pipe.

5. The water meter flow sensitivity testing device according to claim 1, characterized in that: The tee fitting is equipped with a ball valve.

6. The water meter flow sensitivity testing device according to claim 1, characterized in that: Both the water filling bucket and the water receiving bucket are made of transparent material, and their surfaces are marked with water level lines.

7. The water meter flow sensitivity testing device according to claim 6, characterized in that: The bottom of the water injection tank is funnel-shaped.

8. The water meter flow sensitivity testing device according to claim 1, characterized in that: The turbulence-disrupting pipe section has 90° bends at both ends.

9. The water meter flow sensitivity testing device according to claim 2, characterized in that: The top and bottom of the slide opening are provided with limiting grooves along the length direction, and the upper and lower surfaces of the slide plate are fixedly provided with sliding ribs inserted into the corresponding limiting grooves.

10. The water meter flow sensitivity testing device according to claim 1, characterized in that: A water guide plate is fixedly installed at the lower front end of the support frame plate, and the water guide plate is inclined downward towards the water receiving bucket.

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