Valve control water meter shell structure
By introducing a flow guide plate and an anti-backflow plate into the water meter casing structure, the problem of inaccurate measurement caused by liquid impact and backflow is solved, and higher measurement accuracy is achieved.
Patent Information
- Application Number
- CN202520800131.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-04-25
AI Technical Summary
Liquid impact at the connection between the inlet pipe and the casing of existing water meters causes inaccurate impeller metering, and liquid backflow affects metering accuracy.
A guide plate is installed inside the liquid inlet pipe to guide the liquid into the bottom of the housing, and an anti-backflow plate prevents the liquid from flowing back. Combined with the gasket design, this ensures smooth liquid flow and avoids direct impact from the impeller.
This improves the metering accuracy of the water meter, avoids the impact of liquid impact and backflow on the impeller, and ensures more accurate metering.
Smart Images

Figure CN223966122U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water meter housings, specifically to a valve-controlled water meter housing structure. Background Technology
[0002] A valve-controlled water meter is a smart water meter that integrates water metering and valve control functions. It can not only accurately measure water usage, but also automatically switch the water supply on and off through its built-in valve control system. The casing of the valve-controlled water meter is usually used to carry and protect the internal metering system, control system, valves and other components.
[0003] In existing water meter housing structures, the inlet pipe is connected to the housing, and a through hole is provided at the bottom of the housing. Liquid enters the housing through the inlet pipe, but the liquid will hit the outer wall of the housing, which will cause the liquid to impact the impeller, resulting in inaccurate impeller measurement. Utility Model Content
[0004] Based on this, the purpose of this utility model is to provide a valve-controlled water meter housing structure to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a valve-controlled water meter housing structure, including a housing body, an inlet pipe on one side of the housing body, and a drain pipe on the other side of the housing body. A guide plate is installed at the top of the inner wall of the inlet pipe, and an anti-backflow plate is fixed at the bottom of the inner wall of the drain pipe. Both the guide plate and the anti-backflow plate are inclined. A gasket is provided inside the housing body, with the gasket located at the bottom of the guide plate and at the top of the anti-backflow plate.
[0006] By adopting the above technical solution, the guide plate can guide the liquid when it enters the inlet pipe, preventing the liquid from directly impacting the outer wall of the meter casing. The liquid enters the bottom of the meter casing and impacts the impeller, causing it to rotate, thus making the water meter reading more accurate. The anti-backflow plate can prevent the liquid from flowing back into the inside of the meter casing, causing the impeller to rotate and resulting in inaccurate water meter readings.
[0007] The present invention is further configured such that the guide plate is fixedly connected to the top end of the inner wall of the inlet pipe, and the guide plate is in contact with the top end of the inner wall of the inlet pipe.
[0008] Preferably, the deflector plate can better guide the liquid.
[0009] The present invention is further configured such that the anti-backflow plate is fixedly connected to the top end of the inner wall of the drain pipe, and the anti-backflow plate is in contact with the top end of the inner wall of the drain pipe.
[0010] Preferably, the anti-backflow plate can prevent liquid from flowing back and accumulating at the connection between the drain pipe and the main body of the watch case.
[0011] In summary, the present invention has the following main advantages:
[0012] This invention incorporates a guide plate, an anti-backflow plate, and a gasket. The guide plate guides the liquid as it enters the inlet pipe, preventing it from directly impacting the outer wall of the meter casing. Instead, the liquid flows to the bottom of the casing, impacting the impeller and causing it to rotate, thus improving the accuracy of the water meter readings. The anti-backflow plate prevents liquid from flowing back into the casing and causing the impeller to rotate, which could lead to inaccurate water meter readings. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a cross-sectional view of the present invention;
[0015] Figure 3 This is a schematic diagram showing the connection between the anti-backflow plate and the drain pipe of this utility model.
[0016] Explanation of reference numerals in the attached figures:
[0017] 1. Case body; 2. Liquid inlet pipe; 3. Liquid outlet pipe; 4. Flow guide plate; 5. Anti-backflow plate; 6. Gasket. Detailed Implementation
[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0019] The embodiments of this utility model will be described below based on its overall structure.
[0020] Please see Figures 1-3The device includes a housing body 1, with an inlet pipe 2 on one side and a drain pipe 3 on the other side. A guide plate 4 is installed at the top of the inner wall of the inlet pipe 2. Liquid enters through the inlet pipe 2, and the guide plate 4 prevents the liquid from directly impacting the inner wall of the housing body 1. At the same time, the liquid is guided to the impeller at the bottom of the housing body 1, thereby driving the impeller to rotate. An anti-backflow plate 5 is fixed at the bottom of the inner wall of the drain pipe 3. Liquid is discharged through the drain pipe 3, and the anti-backflow plate 5 prevents the liquid from flowing back and impacting the impeller, making the impeller metering more accurate. Both the guide plate 4 and the anti-backflow plate 5 are inclined. A gasket 6 is installed inside the housing body 1. The gasket 6 is located at the bottom of the guide plate 4 and at the top of the anti-backflow plate 5.
[0021] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 The guide plate 4 is fixedly connected to the top end of the inner wall of the liquid inlet pipe 2, and the guide plate 4 is in contact with the top end of the inner wall of the liquid inlet pipe 2, which enables the guide plate 4 to better guide the liquid.
[0022] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 The anti-backflow plate 5 is fixedly connected to the top end of the inner wall of the drain pipe 3, and the anti-backflow plate 5 is in contact with the top end of the inner wall of the drain pipe 3. The anti-backflow plate 5 can prevent liquid backflow and accumulation at the connection between the drain pipe 3 and the watch body 1.
[0023] In practical operation, the impeller is installed inside the main body 1 of the watch case. The water pipe is connected to the inlet pipe 2 and the outlet pipe 3. The liquid enters through the inlet pipe 2. Under the action of the guide plate 4, the liquid is prevented from directly impacting the inner wall of the main body 1. At the same time, the liquid is guided to the impeller at the bottom of the main body 1, thereby driving the impeller to rotate. The liquid is discharged through the outlet pipe 3. Under the action of the anti-backflow plate 5, the liquid is prevented from flowing back and impacting the impeller, making the impeller measurement more accurate.
[0024] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. Valve water meter housing structure, comprising a housing body (1), characterized in that: One side of the watchcase body (1) is provided with a liquid inlet pipe (2), and the other side of the watchcase body (1) is provided with a liquid outlet pipe (3), the top end of the inner wall of the liquid inlet pipe (2) is provided with a flow guide plate (4), the bottom end of the inner wall of the liquid outlet pipe (3) is fixedly provided with a backflow prevention plate (5), and the flow guide plate (4) and the backflow prevention plate (5) are both inclinedly arranged, and the inside of the watchcase body (1) is provided with a gasket (6).
2. The valve regulated water meter case structure of claim 1, wherein: The flow guide plate (4) is fixedly connected with the top end of the inner wall of the liquid inlet pipe (2), and the flow guide plate (4) is in close contact with the top end of the inner wall of the liquid inlet pipe (2).
3. The valve regulated water meter case structure of claim 1, wherein: The backflow prevention plate (5) is fixedly connected with the top end of the inner wall of the liquid outlet pipe (3), and the backflow prevention plate (5) is in close contact with the top end of the inner wall of the liquid outlet pipe (3).
4. The valve regulated water meter case structure of claim 1, wherein: The gasket (6) is located at the bottom of the flow guide plate (4), and the gasket (6) is located at the top of the backflow prevention plate (5).