Fountain type water meter precision testing device

Abstract

The utility model discloses a fountain type water meter precision testing device, which relates to the technical field of water meter precision testing and comprises a fountain type water meter, the top end of the fountain type water meter is fixedly connected with a water outlet pipe, the top end of the water outlet pipe is fixedly connected with a second connecting pipe, and arc-shaped grooves are symmetrically formed in the second connecting pipe. And a rectangular groove is formed in the arc-shaped groove, a limiting spring is fixedly connected into the rectangular groove, and a baffle is slidably connected into the arc-shaped groove. The water flow testing device is provided with the waterproof ring, the arc-shaped groove, the rectangular groove, the limiting spring, the baffle and the water outlet, firstly, the waterproof ring can prevent water from leaking from the first connecting pipe to cause errors in water flow testing, secondly, the arc-shaped groove, the rectangular groove, the limiting spring, the baffle and the water outlet are used in cooperation, and when water flow is too small, the limiting spring controls the baffle to prevent the water flow from leaking. The water outlet becomes smaller, the water pressure is increased, water flow can be sprayed to a certain height, and the calculation result is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of water meter accuracy testing, and specifically relates to a fountain type water meter accuracy testing device. Background Art

[0002] A fountain type water meter is a device for measuring water flow. It uses the fountain principle to achieve measurement. The working principle of the fountain type water meter is based on the fact that water flow forms a fountain through a nozzle, and the water flow is calculated by measuring the height and time of the fountain.

[0003] When the water supply is insufficient, the water pressure becomes smaller. When the too low water pressure passes through the fountain type water meter, the water flow cannot be ejected to a high height, resulting in that the accuracy testing device cannot accurately test the water flow according to the ejection height. Summary of the Utility Model

[0004] To solve the above technical problems, a fountain type water meter accuracy testing device is provided. This technical solution solves the problem that when the water supply is insufficient, the water pressure becomes smaller. When the too low water pressure passes through the fountain type water meter, the water flow cannot be ejected to a high height, resulting in that the accuracy testing device cannot accurately test the water flow according to the ejection height as proposed in the above background art.

[0005] To achieve the above purposes, the technical solution adopted by the utility model is as follows:

[0006] A fountain type water meter accuracy testing device includes a fountain type water meter. The top of the fountain type water meter is fixedly connected with a water outlet pipe. The top of the water outlet pipe is fixedly connected with a second connecting pipe. Arc-shaped grooves are symmetrically opened inside the second connecting pipe. A rectangular groove is opened inside the arc-shaped groove. A limiting spring is fixedly connected inside the rectangular groove. A baffle is slidably connected inside the arc-shaped groove. The inner sides of the two baffles are abutted to form a water outlet.

[0007] Preferably, the other end of the limiting spring is fixedly connected with the outer side of the baffle.

[0008] Preferably, a connecting plate is fixedly connected to the outer surface of the fountain type water meter. A main shaft is rotatably connected inside the connecting plate. A first fixing plate is fixedly connected to the outer surface of the main shaft. A meter cover is fixedly connected to the front side of the first fixing plate.

[0009] Preferably, a water inlet pipe is fixedly connected to the bottom end of the fountain type water meter. A first connecting pipe is fixedly connected to the bottom end of the water inlet pipe. An annular groove is opened at the bottom end of the first connecting pipe. A waterproof ring is arranged inside the annular groove. The waterproof ring is used to prevent water leakage.

[0010] Preferably, the bottom end of the first connecting pipe is symmetrically and fixedly connected with second fixing plates, and threaded holes are formed through the bottom ends of the second fixing plates, and the second fixing plates are used for installing the fountain water meter.

[0011] Preferably, there are two groups of the arc-shaped grooves, and the sizes of the arc-shaped grooves are the same as those of the baffle plates.

[0012] Compared with the prior art, the utility model provides a fountain water meter precision test device, which has the following beneficial effects:

[0013] The utility model is provided with a waterproof ring, arc-shaped grooves, rectangular grooves, limiting springs, baffle plates and water outlets. First of all, the waterproof ring can prevent water from leaking at the first connecting pipe, resulting in errors in the water flow measurement. Secondly, the arc-shaped grooves, rectangular grooves, limiting springs, baffle plates and water outlets are used in cooperation. When the water flow is too small, the limiting springs control the baffle plates to make the water outlets smaller, increasing the water pressure so that the water flow can be sprayed to a certain height, making the calculation result more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a structural schematic diagram of the utility model;

[0015] Figure 2 is a structural schematic diagram of the fountain water meter in the utility model;

[0016] Figure 3 is Figure 2 a partial enlarged structural schematic diagram at A in

[0017] Figure 4 is a top view of the utility model;

[0018] Figure 5 is an internal structural schematic diagram of the second connecting pipe in the utility model.

[0019] The reference numerals in the drawings are:

[0020] 1. Fountain water meter; 101. Connecting plate; 102. Main shaft; 103. First fixing plate; 104. Meter cover; 2. Water inlet pipe; 201. First connecting pipe; 202. Annular groove; 203. Waterproof ring; 204. Second fixing plate; 205. Threaded hole; 3. Water outlet pipe; 301. Second connecting pipe; 302. Arc-shaped groove; 303. Rectangular groove; 304. Limiting spring; 305. Baffle plate; 306. Water outlet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0022] Refer to Figures 1-5 As shown, a fountain type water meter accuracy test device includes a fountain type water meter 1. A connection plate 101 is fixedly connected to the outer surface of the fountain type water meter 1. A main shaft 102 is rotatably connected inside the connection plate 101. A first fixed plate 103 is fixedly connected to the outer surface of the main shaft 102. A meter cover 104 is fixedly connected to the front side of the first fixed plate 103. The meter cover 104 is used to protect the surface of the fountain type water meter 1 from being damaged. When it is necessary to observe the water flow rate, open the meter cover 104 and rotate it 90 degrees to read the indication of the fountain type water meter 1;

[0023] A water inlet pipe 2 is fixedly connected to the bottom end of the fountain type water meter 1. A first connection pipe 201 is fixedly connected to the bottom end of the water inlet pipe 2. An annular groove 202 is opened at the bottom end of the first connection pipe 201. A waterproof ring 203 is arranged inside the annular groove 202. The waterproof ring 203 is used to prevent water leakage. Second fixed plates 204 are symmetrically fixedly connected to the bottom end of the first connection pipe 201. Threaded holes 205 are penetrated and opened at the bottom ends of the second fixed plates 204. The second fixed plates 204 are used to install the fountain type water meter 1;

[0024] According to the position of the water source, select a suitable position to install the fountain type water meter 1. Through the cooperation of the second fixed plate 204 and the threaded hole 205, the installation of the fountain type water meter 1 is realized. Connect the water source to the first connection pipe 201. The waterproof ring 203 can prevent water from leaking at the connection between the first connection pipe 201 and the water source, resulting in errors in the test results;

[0025] A water outlet pipe 3 is fixedly connected to the top end of the fountain type water meter 1. A second connection pipe 301 is fixedly connected to the top end of the water outlet pipe 3. Arc-shaped grooves 302 are symmetrically opened inside the second connection pipe 301. There are two groups of arc-shaped grooves 302. The size of the arc-shaped grooves 302 is the same as that of the baffle 305. A rectangular groove 303 is opened inside the arc-shaped groove 302. A limiting spring 304 is fixedly connected inside the rectangular groove 303. The other end of the limiting spring 304 is fixedly connected to the outer side of the baffle 305. A baffle 305 is slidably connected inside the arc-shaped groove 302. The inner sides of the two groups of baffles 305 are abutted to form a water outlet 306;

[0026] The water outlet pipe 3 is set as a conical structure to increase the water flow pressure and the jet height of the water flow. When the water flow pressure is too small, the pressure of the water flow is less than the tension of the limit spring 304, and the inner sides of the two groups of baffles 305 are in contact. At this time, the size of the water outlet 306 is the smallest. When the size of the water outlet 306 is fixed and the water flow velocity is variable, increasing the water flow pressure increases the jet height of the water flow, making the test results more accurate. When the water flow pressure is too large, the pressure of the water flow is greater than the tension of the limit spring 304. At this time, the limit spring 304 is compressed, and a part of the baffle 305 enters the arc-shaped groove 302, and the two groups of baffles 305 are separated, and the size of the water outlet 306 becomes larger, enabling the water flow to flow out of the water outlet 306 faster.

[0027] When the present utility model is in use, it specifically includes the following steps:

[0028] Step 1: According to the position of the water source, install the fountain type water meter 1 in the designated area through the second fixing plate 204 and the threaded hole 205;

[0029] Step 2: Connect the water source to the first connecting pipe 201;

[0030] Step 3: Turn on the water source and calculate the water flow according to the jet height of the water flow at the water outlet 306.

[0031] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fountain water meter accuracy testing device, characterized in that: The invention comprises a fountain-type water meter (1), wherein the top end of the fountain-type water meter (1) is fixedly connected to a water outlet pipe (3), the top end of the water outlet pipe (3) is fixedly connected to a second connecting pipe (301), the inside of the second connecting pipe (301) is symmetrically provided with arc grooves (302), the inside of the arc groove (302) is provided with a rectangular groove (303), the inside of the rectangular groove (303) is fixedly connected to a limit spring (304), the inside of the arc groove (302) is slidably connected to a baffle (305), and the inner sides of two groups of baffles (305) are abutted to form a water outlet (306).

2. A fountain type water meter accuracy testing device according to claim 1, characterized in that: The other end of the limit spring (304) is fixedly connected to the outer side of the baffle (305).

3. The fountain water meter accuracy testing device according to claim 1, characterized in that: The outer surface of the fountain water meter (1) is fixedly connected to a connection plate (101), the interior of the connection plate (101) is rotatably connected to a main shaft (102), the outer surface of the main shaft (102) is fixedly connected to a first fixed plate (103), and the front side of the first fixed plate (103) is fixedly connected to a meter cover (104).

4. The fountain type water meter accuracy testing device according to claim 1, characterized in that: The bottom end of the fountain-type water meter (1) is fixedly connected to a water inlet pipe (2), the bottom end of the water inlet pipe (2) is fixedly connected to a first connecting pipe (201), an annular groove (202) is provided at the bottom end of the first connecting pipe (201), a waterproof ring (203) is provided inside the annular groove (202), and the waterproof ring (203) is used to prevent water leakage.

5. The fountain type water meter accuracy testing device according to claim 4, characterized in that: A second fixing plate (204) is symmetrically fixed to the bottom end of the first connecting pipe (201), a threaded hole (205) is provided through the bottom end of the second fixing plate (204), and the second fixing plate (204) is used to install a fountain water meter (1).

6. The fountain type water meter accuracy testing device according to claim 1, characterized in that: Two groups of arc-shaped grooves (302) are provided, and the size of the arc-shaped grooves (302) is consistent with the size of the baffle (305).

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