Water meter with self-cleaning function

Abstract

The utility model discloses a water meter with self -cleaning function belongs to water measurement technical field. It mainly includes: main part, its both ends are fixed with inlet pipe and water outlet pipe respectively, its characterized in that: the main part is equipped with booster chamber in, and booster chamber is linked with inlet pipe, the filter structure is fixed to one end of inlet pipe. The utility model discloses through the filter structure of washable of inlet end addition of water meter, can effectively intercept silt, rust and other impurities, still can carry out backflushing self -cleaning operation to filter structure under the condition of not disassembling, make silt, rust and other impurities not easy to cause damage to water meter to prolong the service life of water meter. The utility model is mainly used for water meter structure optimization, improves the service life of water meter.

Description

Technical Field

[0001] This utility model belongs to the field of water metering technology, and more specifically, it relates to a water meter with a self-cleaning function. Background Technology

[0002] In the field of water metering, water meters, as key instruments for measuring water flow, directly affect the rational management and utilization of water resources. With social development and people's increasing demands for quality of life, there are also diversified and refined requirements for the functions of water meters.

[0003] Traditional water meters have revealed numerous problems over long-term use. Water quality poses a significant challenge to these meters. In some areas, water quality is poor, containing sediment and other impurities. Furthermore, the water pipes are often made of cast iron, which is prone to rust. This sediment and rust can enter the water meter with the water flow, impacting its internal structure and potentially causing it to jam. This can lead to inaccurate meter readings, shortened lifespan, or even complete failure of the meter. Currently, the most common solution is to replace the water meter, but this requires scheduling with a professional and shutting off the water supply, causing considerable inconvenience. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a water meter with a self-cleaning function. By adding a washable filter structure to the water inlet of the water meter, it can effectively intercept impurities such as mud and rust, and can also perform backwashing self-cleaning operation on the filter structure without disassembly, so that impurities such as mud and rust are less likely to damage the water meter, thereby extending the service life of the water meter.

[0005] The aforementioned water meter with self-cleaning function includes a main body with an inlet pipe and an outlet pipe fixed at both ends. The main body is characterized by: a pressurizing chamber connected to the inlet pipe; a filter structure, including a housing, a filter screen, and a first valve body, fixed at one end of the inlet pipe; an accessory cavity fixed to the outer wall of the housing, connected to the interior of the housing; a branch pipe and a drain pipe connected to the accessory cavity fixed to its outer wall, with one end of the branch pipe connected to the pressurizing chamber; the first valve body rotatably connected to the housing and located between the branch pipe and the drain pipe; and the filter screen fixed inside the housing at one end facing the main body.

[0006] Preferably, the first valve body includes a ball valve, a handle, and a butterfly valve. The ball valve is embedded in the housing, with one end protruding out of the housing and fixedly connected to the handle, and the other end protruding into the accessory cavity. The butterfly valve is embedded in the accessory cavity and fixedly connected to the ball valve.

[0007] Preferably, the surface of the ball valve is provided with a flow hole that extends from one side to the other.

[0008] Preferably, the butterfly valve has a first through hole and a second through hole, which are on the same straight line.

[0009] Preferably, the diameter of the drain pipe is smaller than the diameter of the branch pipe, and the drain pipe runs from one side of the branch pipe to the other side.

[0010] Preferably, a guide plate is hinged to the side of the pressurization chamber facing the water inlet pipe.

[0011] Preferably, a spring is fixed to the side of the guide plate facing away from the water inlet pipe, and one end of the spring is fixedly connected to the inside of the pressurization chamber.

[0012] Preferably, a second valve body is installed at the water outlet pipe and is rotatably connected thereto.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By adding a washable filter structure to the water inlet of the water meter, impurities such as mud, sand and rust can be effectively intercepted.

[0015] 2. It can perform backwashing and self-cleaning of the filter structure without disassembly, making it less likely for impurities such as mud and rust to damage the water meter, thereby extending the service life of the water meter. Attached Figure Description

[0016] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 2 This is a schematic cross-sectional view of the filter structure of this utility model;

[0018] Figure 3 This is another floor structure diagram of the filtration structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the first valve body structure of this utility model.

[0020] In the diagram, 1. Main body; 11. Pressurization chamber; 111. Guide plate; 112. Spring; 12. Water channel; 13. Main unit; 14. Impeller; 2. Inlet pipe; 21. Limiting contact; 22. First connecting hole; 23. Second connecting hole; 3. Outlet pipe; 31. Second valve body; 4. Filter structure; 41. Housing; 42. Filter screen; 43. First valve body; 431. Ball valve; 4311. Flow hole; 432. Handle; 433. Disc valve; 4331. First through hole; 4332. Second through hole; 44. Accessory cavity; 45. Branch pipe; 46. Sewage pipe. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] like Figures 1 to 3 As shown, a water meter with a self-cleaning function includes a main body 1, with an inlet pipe 2 and an outlet pipe 3 fixed at both ends. The main body 1 is characterized by: a pressurizing chamber 11 connected to the inlet pipe 2; a filter structure 4 fixed at one end of the inlet pipe 2, including a housing 41, a filter screen 42, and a first valve body 43; an accessory cavity 44 fixed to the outer wall of the housing 41, connected to the interior of the housing 41; a branch pipe 45 and a drain pipe 46 connected to the accessory cavity 44, with one end of the branch pipe 45 connected to the pressurizing chamber 11; the first valve body 43 rotatably connected to the housing 41 and located between the branch pipe 45 and the drain pipe 46; and the filter screen 42 fixed inside the housing 41 facing the main body 1.

[0024] Optionally, the main body 1 is provided with a water channel 12, and the two ends of the water channel 12 are respectively connected to the water inlet pipe 2 and the water outlet pipe 3;

[0025] Optionally, a main unit 13 is fixed inside the main body 1, and the bottom of the main unit 13 protrudes into the water channel 12, with an impeller 14 fixed at one end protruding into the water channel 12.

[0026] Optionally, a limiting protrusion 21 is provided at the edge of the connection between the pressurization chamber 11 and the water inlet pipe 2.

[0027] Optionally, the inlet pipe 2 has a first connection hole 22 adapted to the branch pipe 45 on its side wall; and a second connection hole 23 adapted to the drain pipe 46.

[0028] like Figures 2 to 4As shown, the first valve body 43 includes a ball valve 431, a handle 432, and a disc valve 433. The ball valve 431 is embedded in the housing 41, with one end protruding outside the housing 41 and fixedly connected to the handle 432, and the other end protruding into the accessory cavity 44. The disc valve 433 is embedded in the accessory cavity 44 and fixedly connected to the ball valve 431. Thus, the disc valve 433 and the ball valve 431 are fixedly connected, enabling them to rotate synchronously. When the handle 432, which is fixedly connected to the ball valve 431, is rotated, the disc valve 433 can rotate synchronously with the ball valve 431.

[0029] like Figure 3 and Figure 4 As shown, the ball valve 431 has a flow hole 4311 extending from one side to the other. When the central axis of the flow hole 4311 is collinear with the central axis of the inlet pipe 2, water can flow through the flow hole 4311 towards the main unit 13. Conversely, when the central axis of the flow hole 4311 intersects with the central axis of the inlet pipe 2, the flow of water towards the main unit 13 is blocked.

[0030] Optionally, sealing rings are embedded at both ends of the ball valve 431 that contact the water inlet pipe 2.

[0031] like Figure 4 As shown, the disc valve 433 is provided with a first through hole 4331 and a second through hole 4332, both of which are on the same straight line. In this way, the first through hole 4331 and the second through hole 4332 are on the same straight line, which allows the branch pipe 45 and the sewage pipe 46 to be closed or opened simultaneously when the disc valve 433 is rotated.

[0032] Understandably, when the ball valve 431 is connected to the inlet pipe 2, the disc valve 433 simultaneously closes the branch pipe 45 and the drain pipe 46, allowing water to flow towards the main unit 13. When the ball valve 431 is closed to the inlet pipe 2, the disc valve 433 simultaneously opens the branch pipe 45 and the drain pipe 46, causing water to no longer flow towards the main unit 13 through the ball valve 431, but instead flow towards the pressurization chamber 11 through the branch pipe 45. After being pressurized by the pressurization chamber 11, the water backwashes the filter screen 42 and flows out through the drain pipe 46.

[0033] like Figure 3 As shown, the diameter of the drain pipe 46 is smaller than that of the branch pipe 45, and the drain pipe 46 runs through one side of the branch pipe 45 to the other side. In this way, the drain pipe 46 is connected to the branch pipe 45 in a through manner, which can change the internal aperture of the branch pipe 45 by the drain pipe 46 to increase the water flow pressure, so as to increase the flushing force of the water flow on the filter screen 42.

[0034] like Figures 1 to 3As shown, a guide plate 111 is hinged to the side of the pressurization chamber 11 facing the water inlet pipe 2. Thus, when water enters the pressurization chamber 11, the pressure of the water flow itself can push the guide plate 111 open. When one side of the guide plate 111 contacts the limiting protrusion 21, the guide plate 111 reaches its maximum opening. At this time, the water flow is blocked by the guide plate 111 and flows towards the filter screen 42, achieving reverse flushing of the filter screen 42.

[0035] like Figures 1 to 3 As shown, a spring 112 is fixed to the side of the guide plate 111 facing away from the water inlet pipe 2, and one end of the spring 112 is fixedly connected to the inside of the pressurization chamber 11. Thus, the elasticity of the spring 112 applies pressure to the guide plate 111. When the water pressure inside the pressurization chamber 11 exceeds the tension of the spring 112, the water flow pushes open the guide plate 111 with greater pressure and is released instantaneously towards the filter screen 42. The impact force of this instantaneous release enhances the cleaning effect of the water flow on the filter screen 42.

[0036] Optionally, the spring 112 may be made of materials including, but not limited to, titanium alloys.

[0037] like Figure 1 As shown, a second valve body 31 is rotatably connected to the water outlet pipe 3. This allows the water outlet pipe 3 to be closed or opened via the second valve body 31, preventing water from flowing towards the main unit 13 during the cleaning of the filter screen 42 by the main body 1.

[0038] Finally, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water meter with self-cleaning function, comprising a main body (1), with an inlet pipe (2) and an outlet pipe (3) fixed at both ends, characterized in that: The main body (1) is provided with a pressurization chamber (11), and the pressurization chamber (11) is connected to the water inlet pipe (2); a filter structure (4) is fixed at one end of the water inlet pipe (2), including a shell (41), a filter screen (42), and a first valve body (43). An accessory cavity (44) is fixed on the outer wall of the shell (41), and the accessory cavity (44) is connected to the inside of the shell (41); a branch pipe (45) and a drain pipe (46) connected to the accessory cavity (44) are fixed on the outer wall of the accessory cavity (44), and one end of the branch pipe (45) is connected to the pressurization chamber (11); the first valve body (43) is rotatably connected to the shell (41) and is located between the branch pipe (45) and the drain pipe (46); the filter screen (42) is fixed inside the shell (41) at one end facing the main body (1).

2. A water meter with self-cleaning function according to claim 1, characterized in that: The first valve body (43) includes a ball valve (431), a handle (432), and a disc valve (433). The ball valve (431) is embedded in the housing (41), with one end protruding outside the housing (41) and fixedly connected to the handle (432), and the other end protruding into the accessory cavity (44). The disc valve (433) is embedded in the accessory cavity (44) and fixedly connected to the ball valve (431).

3. A water meter with self-cleaning function according to claim 2, characterized in that: The ball valve (431) has a flow hole (4311) on its surface that runs from one side to the other.

4. A water meter with self-cleaning function according to claim 2, characterized in that: The disc valve (433) is provided with a first through hole (4331) and a second through hole (4332), which are on the same straight line.

5. A water meter with self-cleaning function according to claim 1, characterized in that: The diameter of the drain pipe (46) is smaller than that of the branch pipe (45), and the drain pipe (46) runs from one side of the branch pipe (45) to the other side.

6. A water meter with self-cleaning function according to claim 1, characterized in that: The pressurization chamber (11) is hinged to a guide plate (111) on the side facing the water inlet pipe (2).

7. A water meter with self-cleaning function according to claim 6, characterized in that: A spring (112) is fixed on the side of the guide plate (111) facing away from the water inlet pipe (2), and one end of the spring (112) is fixedly connected to the inside of the pressurization chamber (11).

8. A water meter with self-cleaning function according to claim 1, characterized in that: A second valve body (31) is installed at the outlet pipe (3) and is rotatably connected thereto.

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