Water meter with filtering device

Abstract

The water meter with the filtering device comprises a device body, a water inlet pipe is arranged on one side of the device body, a water outlet pipe is arranged on the other side of the device body, a groove is formed in the top of the device body, a spring is arranged in the groove, a butt joint protrusion is arranged on the top of the spring, and a sealing cover is arranged on the top of the butt joint protrusion. The butt joint protrusion is fixedly connected with the sealing cover, an observation cover is arranged in the sealing cover, through holes are symmetrically formed in the two sides of the sealing cover, and a butt joint hole is formed in the surface of the device body; water flow is firstly filtered by the protection filter screen and enters the lower containing cavity, then backflow is formed through the C-shaped design of the supporting plate, the water flow is further filtered by the filter screen, impurities in water are effectively removed, the detection assembly is protected against damage, and then the water flow is guided by the blades, flows out of the water outlet holes and reaches the upper containing cavity. The annular inclined structure design of the upper containing cavity enables water flow to naturally flow to the water outlet pipe, water flow smoothness is guaranteed, water pressure loss is reduced, and water supply efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of water volume detection, and in particular to a water meter with a built-in filter device. Background Technology

[0002] Currently, Chinese Patent CN214538104U discloses a water meter relating to the field of fluid measuring devices. It includes a housing and a copper cover mounted on the housing. An end cap is threaded onto the side of the copper cover away from the housing. A connecting ring that abuts against the copper cover is located on the side of the end cap near the housing. A fixing ring that slides through the end cap is located on the side of the connecting ring away from the housing. A through-groove is provided on the end cap for the fixing ring to pass through, and the thickness of the fixing ring is greater than the depth of the through-groove. A protective cover is bolted to the side of the fixing ring away from the housing. This application facilitates the installation of a protective cover on the water meter. However, while this device solves the aforementioned shortcomings, during use, impurities such as mud, sand, and rust in the water can easily cause internal blockage of the water meter, affecting metering accuracy and service life. To address these problems, this application provides a water meter with a built-in filter. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the problem that existing devices are prone to internal blockage due to impurities such as mud, sand and rust in the water, which affects the metering accuracy and service life. The present invention provides a water meter with a built-in filter.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a water meter with a built-in filter, comprising a device body, an inlet pipe on one side of the device body, an outlet pipe on the other side of the device body, a groove on the top of the device body, a spring inside the groove, a mating protrusion on the top of the spring, a sealing cover on the top of the mating protrusion, the mating protrusion being fixedly connected to the sealing cover, an observation cover inside the sealing cover, through holes symmetrically arranged on both sides of the sealing cover, a mating hole on the surface of the device body, a lower cavity inside the device body, an upper cavity above the lower cavity, a support plate inside the lower cavity, a detection mechanism inside the upper and lower cavities, and a filter mechanism at the bottom of the detection mechanism.

[0005] As a further description of the above technical solution:

[0006] The detection mechanism includes a detection dial and a reduction gear. The reduction gear is located at the bottom of the detection dial, and a base plate is located at the bottom of the reduction gear. A transmission gear rod is located inside the reduction gear, and blades are located on the outside of the transmission gear rod.

[0007] As a further description of the above technical solution:

[0008] The filtration mechanism includes a vertical pipe and a limiting ring. The limiting ring is provided on the outside of the vertical pipe. A water outlet is provided above the limiting ring, and a water inlet is provided below the limiting ring. Both the water inlet and the water outlet penetrate the surface of the vertical pipe. A filter screen is provided on the outside of the vertical pipe, and the filter screen is wrapped around the outside of the water inlet. A protective filter screen is provided on the other side of the filter screen, and the protective filter screen is embedded inside the water inlet pipe.

[0009] As a further description of the above technical solution:

[0010] The support plate is a C-shaped structure with a semi-enclosed structure. The diameter of the support plate matches the diameter of the limiting ring. The shapes of the groove and the mating protrusion match each other. The sizes of the through hole and the mating hole match each other.

[0011] As a further description of the above technical solution:

[0012] The observation cover is made of transparent material, and the upper and lower cavities are both annular inclined cavities with the higher side near the water inlet pipe.

[0013] As a further description of the above technical solution:

[0014] The protective filter screen is a large-pore filter screen, the filter screen is a fine-pore filter screen, and a free-spinning bearing is provided at the connection between the base plate and the transmission gear rod. The teeth of the transmission gear rod are matched with the reduction gear.

[0015] This utility model has the following beneficial effects:

[0016] In this invention, the sealing cover is fixed to the main body of the device by a bolt, preventing external impurities from entering the device due to loose sealing cover and affecting the detection results, thus ensuring the long-term stable operation of the water meter. The water flow first passes through the protective filter screen and enters the lower chamber. Then, it is refluxed by the C-shaped design of the support plate and further filtered by the filter screen to effectively remove impurities in the water and protect the detection components from damage. Then, the water flow is guided by the blades and flows out of the outlet hole to the upper chamber. The annular inclined structure design of the upper chamber allows the water to flow naturally to the outlet pipe, ensuring smooth water flow, reducing water pressure loss, and improving water supply efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a water meter with a built-in filter device according to this utility model;

[0018] Figure 2 This is an exploded view of the overall structure of a water meter with a built-in filter according to this utility model;

[0019] Figure 3 This is a side sectional view of a water meter with a built-in filter device according to the present invention.

[0020] Figure 4 This is a schematic diagram of the connection structure between the support plate and the vertical pipe of a water meter with a built-in filter device according to this utility model.

[0021] Legend:

[0022] 1. Main body of the device; 2. Groove; 3. Spring; 4. Sealing cover; 5. Observation cover; 6. Docking protrusion; 7. Through hole; 8. Water inlet pipe; 9. Water outlet pipe; 10. Detection mechanism; 101. Detection dial; 102. Reduction gear; 103. Base plate; 104. Transmission gear rod; 105. Blade; 11. Filtering mechanism; 111. Vertical pipe; 112. Limiting ring; 113. Water outlet; 114. Water inlet; 12. Support plate; 13. Docking hole; 14. Lower cavity; 15. Upper cavity; 1051. Filter screen; 106. Protective filter screen. Detailed Implementation

[0023] 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.

[0024] Referring to Figures 1-4, this utility model provides a water meter with a built-in filter device, including a device body 1. A water inlet pipe 8 is provided on one side of the device body 1, and a water outlet pipe 9 is provided on the other side of the device body 1. A groove 2 is provided on the top of the device body 1, and a spring 3 is provided inside the groove 2. A docking protrusion 6 is provided on the top of the spring 3, and a sealing cover 4 is provided on the top of the docking protrusion 6. The docking protrusion 6 is fixedly connected to the sealing cover 4. An observation cover 5 is provided inside the sealing cover 4. Through holes 7 are symmetrically provided on both sides of the sealing cover 4. A docking hole 13 is provided on the surface of the device body 1. A lower cavity 14 is provided inside the device body 1, and an upper cavity 15 is provided above the lower cavity 14. A support plate 12 is provided inside the lower cavity 14. A detection mechanism 10 is provided inside the upper cavity 15 and the lower cavity 14. A filter mechanism 11 is provided at the bottom of the detection mechanism 10.

[0025] During use, the sealing cover is fixed to the main body of the device by the plug to prevent external impurities from entering the device due to loose sealing cover, which would affect the test results and ensure the long-term stable operation of the water meter. The water flow first passes through the protective filter screen and enters the lower chamber. Then, it is backflowed by the C-shaped design of the support plate and further filtered by the filter screen to effectively remove impurities in the water and protect the detection components from damage. Then, the water flow is guided by the blades and flows out of the water outlet to the upper chamber. The annular inclined structure design of the upper chamber allows the water to flow naturally to the water outlet pipe, ensuring smooth water flow, reducing water pressure loss, and improving water supply efficiency.

[0026] The detection mechanism 10 includes a detection dial 101 and a reduction gear 102. The bottom of the detection dial 101 is provided with a reduction gear 102 and the bottom of the reduction gear 102 is provided with a base plate 103. The reduction gear 102 has a transmission gear rod 104 inside and a blade 105 outside. The water flow drives the transmission gear rod 104 to rotate through the blade 105. After being reduced in speed by the reduction gear 102, the water flow drives the detection dial 101 to display the flow rate data. The mechanical transmission structure is simple and reliable, ensuring the accuracy of flow rate detection.

[0027] The filtration mechanism 11 includes a vertical pipe 111 and a limiting ring 112. The limiting ring 112 is provided on the outside of the vertical pipe 111. A water outlet 113 is provided above the limiting ring 112, and a water inlet 114 is provided below the limiting ring 112. Both the water inlet 114 and the water outlet 113 penetrate the surface of the vertical pipe 111. A filter screen 1051 is provided on the outside of the vertical pipe 111, and the filter screen 1051 is wrapped around the outside of the water inlet 114. A protective filter screen 106 is provided on the other side of the filter screen 1051, and the protective filter screen 106 is embedded inside the water inlet pipe 8. Through the efficient filtration system, impurities are reduced from entering the water supply system, protecting downstream equipment and preventing water pressure drop due to impurities clogging, thereby improving water resource utilization efficiency.

[0028] The support plate 12 is a C-shaped semi-enclosed structure. The diameter of the support plate 12 matches the diameter of the limiting ring 112. The shapes of the groove 2 and the mating protrusion 6 match each other, and the sizes of the through hole 7 and the mating hole 13 match each other. By removing the plug to unlock the device body and the sealing cover, the sealing cover can be quickly removed and the filter mechanism 11 can be taken out for cleaning. After cleaning, it can be quickly reinstalled. The operation is simple and the maintenance is convenient. Moreover, the C-shaped design of the support plate 12 not only optimizes the water flow path but also enhances the structural stability of the device and prevents water flow impact from damaging the internal components.

[0029] The observation cover 5 is made of transparent material. The upper cavity 15 and the lower cavity 14 are both annular inclined cavities with the higher side near the water inlet pipe 8. The transparent material of the observation cover 5 allows the detection dial 101 to display the flow data intuitively, which is convenient for users to monitor water usage in real time and improve the efficiency of water resource management.

[0030] The protective filter screen 106 is a large-pore filter screen, and the filter screen 1051 is a fine-pore filter screen. A free-spinning bearing is provided at the connection between the base plate 103 and the transmission gear rod 104. The teeth of the transmission gear rod 104 are matched with the reduction gear 102. The detachable design of the filter mechanism reduces the risk of equipment failure caused by the accumulation of impurities, extends the service life of the water meter, and reduces maintenance costs.

[0031] Working principle: During installation, choose a dry, level location that is easy to observe and maintain, avoiding direct sunlight and humid environments. Then, connect the inlet pipe 8 to the water supply pipe and the outlet pipe 9 to the water pipe, ensuring a good seal. Insert a bolt at the connection between the groove 2 and the mating protrusion 6 to secure the connection, preventing the sealing cover 4 from separating from the main body 1 and allowing external impurities to enter the device and affect the test results. During use, water flows through the protective filter 106 and into the lower cavity 14. The C-shaped design of the support plate 12 creates a backflow, allowing water to enter from the C-shaped opening. After being filtered by the filter 1051, water enters the vertical pipe 111 through the inlet 114. The water flow is driven by the blades 105. The gear rod 104 rotates, and after being reduced in speed by the reduction gear 102, it drives the detection dial 101 to display the flow data. At the same time, the water after detection is guided by the blade 105 and flows out from the water outlet 103 to the upper cavity 15. Because the upper cavity 15 is an annular inclined structure cavity with one side higher, the water after detection will naturally flow to the lower water outlet pipe 9 for water supply. When cleaning, close the water supply valve, release the locking between the device body 1 and the sealing cover 4 by pulling out the plug, thereby removing the sealing cover 4, taking the filter mechanism 11 out of the device body 1, rinsing the filter screen 1051 with clean water to remove impurities, and reinstalling it. Place the limit ring 112 on the top of the support plate 12 to achieve quick cleaning and reset of the device and reduce the difficulty of device maintenance.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A water meter with a built-in filter device, comprising a device body (1), characterized in that, A water inlet pipe (8) is provided on one side of the main body (1) of the device, and a water outlet pipe (9) is provided on the other side of the main body (1). A groove (2) is provided on the top of the main body (1). A spring (3) is provided inside the groove (2). A docking protrusion (6) is provided on the top of the spring (3). A sealing cover (4) is provided on the top of the docking protrusion (6). The docking protrusion (6) is fixedly connected to the sealing cover (4). An observation cover (5) is provided inside the sealing cover (4). Through holes (7) are symmetrically provided on both sides of the sealing cover (4). A docking hole (13) is provided on the surface of the main body (1). A lower cavity (14) is provided inside the main body (1). An upper cavity (15) is provided above the lower cavity (14). A support plate (12) is provided inside the lower cavity (14). A detection mechanism (10) is provided inside the upper cavity (15) and the lower cavity (14). A filter mechanism (11) is provided at the bottom of the detection mechanism (10).

2. A water meter with a built-in filter device according to claim 1, characterized in that, The detection mechanism (10) includes a detection dial (101) and a reduction gear (102). The reduction gear (102) is provided at the bottom of the detection dial (101), and a base plate (103) is provided at the bottom of the reduction gear (102). A transmission gear rod (104) is provided inside the reduction gear (102), and a blade (105) is provided on the outside of the transmission gear rod (104).

3. A water meter with a built-in filter device according to claim 2, characterized in that, The filtration mechanism (11) includes a vertical pipe (111) and a limiting ring (112). The limiting ring (112) is provided on the outside of the vertical pipe (111). A water outlet (113) is provided above the limiting ring (112). A water inlet (114) is provided below the limiting ring (112). Both the water inlet (114) and the water outlet (113) penetrate the surface of the vertical pipe (111). A filter screen (1051) is provided on the outside of the vertical pipe (111). The filter screen (1051) is wrapped around the outside of the water inlet (114). A protective filter screen (106) is provided on the other side of the filter screen (1051). The protective filter screen (106) is embedded inside the water inlet pipe (8).

4. A water meter with a built-in filter device according to claim 3, characterized in that, The support plate (12) is a C-shaped semi-enclosed structure. The diameter of the support plate (12) matches the diameter of the limiting ring (112). The shapes of the groove (2) and the mating protrusion (6) match each other. The sizes of the through hole (7) and the mating hole (13) match each other.

5. A water meter with a built-in filter device according to claim 4, characterized in that, The observation cover (5) is made of transparent material, and the upper cavity (15) and the lower cavity (14) are both annular inclined cavities with a higher side near the water inlet pipe (8).

6. A water meter with a built-in filter device according to claim 5, characterized in that, The protective filter screen (106) is a large-pore filter screen, and the filter screen (1051) is a fine-pore filter screen. A free-spinning bearing is provided at the connection between the base plate (103) and the transmission gear rod (104). The teeth of the transmission gear rod (104) are matched with the reduction gear (102).

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