High-sensitivity anti-backflow intelligent water meter

Abstract

The utility model belongs to the technical field of water meter backflow prevention, and particularly relates to a high-sensitivity backflow-prevention intelligent water meter which comprises a flow cylinder, and a flow box is fixedly connected into the flow cylinder. Water inlet grooves and water outlets are formed in the side wall of the flow box, and the water inlet grooves and the water outlets are distributed in a circumferential array mode; a water stop plate is fixedly connected to the inner side wall of the flow box; water through grooves are formed in the surface of the water stop plate, and the multiple water through grooves are distributed in a circumferential array mode; the top of the flow box is rotationally connected with a fixed rod; the bottom of the fixing rod is fixedly connected with a flow wheel, and the top of the fixing rod is fixedly connected with a gear; a flow meter is arranged at the top of the gear; the flow box and the water-stop sheet are arranged to separate a water body, so that the contact effect of the water body and the flow wheel is optimized, the accuracy of the water meter is improved, and the error between the flow of the water meter and the actual circulation amount is reduced.

Description

A high-sensitivity anti-backflow smart water meter Technical Field

[0001] This utility model belongs to the field of water meter anti-backflow technology, specifically a high-sensitivity anti-backflow smart water meter. Background Technology

[0002] A water meter is an instrument used to measure water flow. Most of them measure the cumulative flow of water. They are generally divided into two categories: volumetric water meters and velocity water meters. Originating in the UK, water meters have been developed for nearly two hundred years. When selecting a water meter, you should first estimate the flow rate and range you usually use, and then choose the water meter with the closest commonly used flow rate as your first choice.

[0003] Existing water meters have a relatively simple structure, which means that water flows through the meter by passing through a flow measurement component. However, in daily use, water may flow backward inside the pipe under certain circumstances. When water flows backward, the relevant components of the water meter will reverse, which can easily cause the water meter reading to be inaccurate.

[0004] Therefore, this utility model provides a high-sensitivity anti-backflow smart water meter. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A high-sensitivity anti-backflow smart water meter of this utility model includes a flow cylinder, inside which a flow box is fixedly connected; the side wall of the flow box has an inlet groove and an outlet, which are arranged in a circular array; a water-blocking plate is fixedly connected to the inner side wall of the flow box; a water-passing groove is opened on the surface of the water-blocking plate, and multiple water-passing grooves are arranged in a circular array; a fixing rod is rotatably connected to the top of the flow box; a flow wheel is fixedly connected to the bottom of the fixing rod, and a gear is fixedly connected to the top of the fixing rod; a flow meter is set on the top of the gear, and the flow meter is fixedly connected to the top of the flow cylinder; through the above structure, the flow box and the water-blocking plate separate the water body, thereby optimizing the contact effect between the water body and the flow wheel, thus improving the accuracy of the water meter and helping to reduce the error between the meter flow rate and the actual flow volume.

[0007] Preferably, a check pipe is threaded onto the side wall of the flow cylinder; a check cylinder is provided inside the check pipe; a first duckbill tube and a second duckbill tube are fixedly connected to the inner side wall of the check cylinder, and the first duckbill tube and the second duckbill tube are arranged correspondingly; a first fixing block is fixedly connected between the first duckbill tube and the second duckbill tube, and the first fixing block is fixedly connected to the check cylinder; through the above structure, the first duckbill tube and the second duckbill tube restrict the backflow of water, giving full play to the high sensitivity of the duckbill structure while improving the water flow efficiency of the water meter, which helps to avoid the occurrence of backflow and blockage of water, thereby improving the accuracy of the water meter.

[0008] Preferably, a buffer spring is provided on the side wall of the check cylinder, and the two buffer springs are arranged correspondingly; a spring washer is provided on the side wall of the buffer spring, and the spring washer contacts the inner side wall of the check cylinder; through the above structure, the buffer spring and spring washer buffer the stress on the first duckbill tube and the second duckbill tube, thereby avoiding damage to the first duckbill tube and the second duckbill tube under the action of water stress, which is conducive to extending the service life of the water meter and reducing the maintenance needs and maintenance costs of the water meter.

[0009] Preferably, a limiting rod is fixedly connected to the side wall of the first fixing block; a limiting block is slidably connected to the side wall of the limiting rod; a second fixing block is fixedly connected to the side wall of the limiting block, and multiple limiting blocks are arranged correspondingly; the ends of the multiple second fixing blocks away from the limiting blocks are fixedly connected to the inner side wall of the check pipe; through the above structure, the limiting rod and the limiting block restrict the movement posture of the check cylinder, thereby preventing the check cylinder from tilting during movement, enhancing the stability of the smart water meter, and helping to extend the service life of the water meter.

[0010] Preferably, a positioning block is fixed to the side wall of the check cylinder, and multiple positioning blocks are arranged in a circumferential array; a positioning protrusion is fixed to the inner side wall of the check pipe, and multiple positioning protrusions are arranged corresponding to the positions of the positioning blocks; through the above structure, the positioning blocks and positioning protrusions restrict the position of the check cylinder, thereby preventing the check cylinder from rotating inside the check pipe, and preventing water from flowing out through the gap between the check pipe and the check cylinder, which helps to prevent water backflow.

[0011] Preferably, a filter screen is provided on the inner wall of the flow cylinder, and the filter screen is set according to the size of the flow cylinder; through the above structure, the filter screen filters the water, thereby preventing water impurities from entering the water meter, which helps to avoid water meter blockage and reduce the water meter maintenance requirements.

[0012] Preferably, a sealing ring is provided between the flow cylinder and the check pipe, and the sealing ring is made of rubber. Through the above structure, the sealing ring fills the gap between the flow cylinder and the check pipe, preventing water leakage and enhancing the sealing performance of the water meter.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The high-sensitivity anti-backflow smart water meter of this utility model optimizes the contact effect between the water body and the flow wheel by setting a flow box and a water separator to separate the water body, thereby improving the accuracy of the water meter and reducing the error between the water meter flow rate and the actual flow rate.

[0015] 2. The high-sensitivity anti-backflow smart water meter of this utility model restricts water backflow by setting a first duckbill tube and a second duckbill tube. It leverages the high sensitivity of the duckbill structure while improving the water flow efficiency of the water meter, which helps to avoid water backflow and blockage, thereby improving the accuracy of the water meter. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 is a perspective view of this utility model;

[0018] Figure 2 is a schematic diagram of the flow meter in this utility model;

[0019] Figure 3 is a schematic diagram of the flow cylinder in this utility model;

[0020] Figure 4 is a schematic diagram of the structure of the check valve of this utility model;

[0021] Figure 5 is a schematic diagram of the structure of the stop return cylinder of this utility model.

[0022] In the diagram: 1. Flow cylinder; 11. Flow box; 12. Inlet tank; 13. Water baffle; 14. Outlet; 15. Flow wheel; 16. Fixing rod; 17. Gear; 18. Flow meter; 2. Check pipe; 21. Check cylinder; 22. First duckbill pipe; 23. Second duckbill pipe; 24. First fixing block; 3. Buffer spring; 31. Spring washer; 4. Limiting rod; 41. Limiting block; 42. Second fixing block; 5. Positioning block; 51. Positioning protrusion; 6. Filter screen; 7. Sealing ring. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Specific implementation examples are given below.

[0025] As shown in Figures 1 to 3, a high-sensitivity anti-backflow smart water meter according to an embodiment of this utility model includes a flow cylinder 1, with a flow box 11 fixedly connected inside the flow cylinder 1. The side wall of the flow box 11 has an inlet groove 12 and an outlet 14, which are arranged in a circular array. A water baffle plate 13 is fixedly connected to the inner side wall of the flow box 11. Multiple water channels are arranged in a circular array on the surface of the water baffle plate 13. A fixing rod 16 is rotatably connected to the top of the flow box 11. A flow wheel 15 is fixedly connected to the bottom of the fixing rod 16, and a gear 17 is fixedly connected to the top of the fixing rod 16. A flow meter 18 is mounted on the top of the gear 17 and is fixedly connected to the top of the flow cylinder 1. During operation, users and staff can read the flow rate of the water meter through the flow meter 18. Simultaneously, the staff can install the water meter on the water line using the structure of the flow tube 1. As the water flows through the water meter, the water flow will enter the flow box 11 through multiple inlet grooves 12 opened on the side wall of the flow box 11. Subsequently, the water flow will pass through multiple water passage grooves opened on the surface of the baffle plate 13. At this time, the flow wheel 15 will rotate under the action of the water flow, and the flow wheel 15 can drive the fixed rod 16 to rotate, thereby causing the gear 17 to transmit the rotation to the flow tube 1. After contacting the flow wheel 15, the water can flow out from multiple outlets 14. Through the above structure, the flow box 11 and the baffle plate 13 are set to separate the water body, thereby optimizing the contact effect between the water body and the flow wheel 15, thereby improving the accuracy of the water meter and helping to reduce the error between the water meter flow rate and the actual flow volume.

[0026] As shown in Figures 2, 4, and 5, a check pipe 2 is threaded onto the side wall of the flow cylinder 1; a check cylinder 21 is installed inside the check pipe 2; a first duckbill pipe 22 and a second duckbill pipe 23 are fixedly connected to the inner side wall of the check cylinder 21, and the first duckbill pipe 22 and the second duckbill pipe 23 are arranged correspondingly; a first fixing block 24 is fixedly connected between the first duckbill pipe 22 and the second duckbill pipe 23, and the first fixing block 24 is fixedly connected to the check cylinder 21; during operation, whenever water flows through the flow cylinder 1 and reaches the inside of the check pipe 2, the water will reach the inside of the check cylinder 21, and under its own water pressure, it will force open the duckbill structure of the first duckbill pipe 22 and the second duckbill pipe 23, thus passing through the check cylinder 21, and When water flows backward, due to the special duckbill structure of the first duckbill tube 22 and the second duckbill tube 23, the first duckbill tube 22 and the second duckbill tube 23 will close under the water pressure of the backward-flowing water, thereby blocking the backward flow. The first fixing block 24, which is fixed between the first duckbill tube 22 and the second duckbill tube 23 and is fixedly connected to the check cylinder 21, plays a role in strengthening the stability of the first duckbill tube 22 and the second duckbill tube 23. Through the above structure, the first duckbill tube 22 and the second duckbill tube 23 are set to restrict the backward flow of water, giving full play to the high sensitivity of the duckbill structure and improving the water flow efficiency of the water meter. This helps to avoid the occurrence of backward flow and blockage, thereby improving the accuracy of the water meter.

[0027] As shown in Figures 2 and 4, a buffer spring 3 is provided on the side wall of the check cylinder 21, and two buffer springs 3 are arranged correspondingly. A spring pad 31 is provided on the side wall of the buffer spring 3, and the spring pad 31 contacts the inner side wall of the check pipe 2. During operation, whenever the first duckbill pipe 22 and the second duckbill pipe 23 are subjected to water pressure, the check cylinder 21 can buffer the stress on the first duckbill pipe 22 and the second duckbill pipe 23 by squeezing the buffer spring 3, thereby maintaining the stability of the first duckbill pipe 22 and the second duckbill pipe 23. The spring pad 31, which is set between the check pipe 2 and the buffer spring 3, plays the role of optimizing the contact relationship between the buffer spring 3 and the check pipe 2. Through the above structure, the buffer spring 3 and the spring pad 31 buffer the stress on the first duckbill pipe 22 and the second duckbill pipe 23, thereby avoiding damage to the first duckbill pipe 22 and the second duckbill pipe 23 under the action of water stress, which helps to extend the service life of the water meter and reduce the maintenance needs and maintenance costs of the water meter.

[0028] As shown in Figures 4 and 5, a limiting rod 4 is fixedly connected to the side wall of the first fixing block 24; a limiting block 41 is slidably connected to the side wall of the limiting rod 4; a second fixing block 42 is fixedly connected to the side wall of the limiting block 41, and multiple limiting blocks 41 are arranged correspondingly; the ends of multiple second fixing blocks 42 away from the limiting block 41 are fixedly connected to the inner side wall of the check pipe 2; during operation, whenever the check cylinder 21 slides inside the check pipe 2, the limiting rod 4 fixed to the side wall of the first fixing block 24 can restrict the movement posture of the check cylinder 21 by contacting the limiting block 41, thereby preventing it from tilting. The multiple second fixing blocks 42 serve to fix the limiting block 41. Through the above structure, the limiting rod 4 and the limiting block 41 restrict the movement posture of the check cylinder 21, thereby preventing the check cylinder 21 from tilting during movement, enhancing the stability of the smart water meter, and helping to extend the service life of the water meter.

[0029] As shown in Figure 4, a positioning block 5 is fixed to the side wall of the check cylinder 21, and multiple positioning blocks 5 are arranged in a circular array. A positioning protrusion 51 is fixed to the inner side wall of the check pipe 2, and multiple positioning protrusions 51 are arranged corresponding to the positions of the positioning blocks 5. During operation, multiple positioning blocks 5 fixed to the side wall of the check cylinder 21 contact the side walls of two adjacent positioning protrusions 51 respectively. Since the positioning blocks 5 and the positioning protrusions 51 are in contact with each other, the check cylinder 21 will not be able to rotate relative to the check pipe 2. At the same time, since the positioning blocks 5 and the positioning protrusions 51 are in contact, the water will be blocked by the positioning blocks 5 and the positioning protrusions 51. Through the above structure, the positioning blocks 5 and the positioning protrusions 51 restrict the position of the check cylinder 21, thereby preventing the check cylinder 21 from rotating inside the check pipe 2, and preventing water from flowing out through the gap between the check pipe 2 and the check cylinder 21, which helps to prevent water backflow.

[0030] As shown in Figures 1 to 3, a filter screen 6 is provided on the inner wall of the flow cylinder 1, and the size of the filter screen 6 corresponds to that of the flow cylinder 1. During operation, as the water flows through the filter screen 6, larger impurities will be filtered by the filter screen 6. Through the above structure, the filter screen 6 filters the water, thereby preventing impurities from entering the water meter, which helps to prevent water meter blockage and reduce the maintenance requirements of the water meter.

[0031] As shown in Figure 2, a sealing ring 7 is provided between the flow cylinder 1 and the check pipe 2, and the sealing ring 7 is made of rubber. During operation, the sealing ring 7, which is made of rubber and is located between the flow cylinder 1 and the check pipe 2, can fill the gap between the flow cylinder 1 and the check pipe 2 by deforming under force, thereby preventing water leakage. Through the above structure, the sealing ring 7 fills the gap between the flow cylinder 1 and the check pipe 2, preventing water leakage and enhancing the sealing performance of the water meter.

[0032] During operation, users and staff can read the flow rate of the water meter through the flow meter 18. Simultaneously, staff can install the water meter on the water line using the structure of the flow cylinder 1. As water flows through the water meter, it enters the flow box 11 through multiple inlet grooves 12 on the side wall. Subsequently, the water flows through multiple through-channels on the surface of the baffle plate 13. At this time, the flow wheel 15 rotates under the action of the water flow, which in turn drives the fixed rod 16 to rotate, thereby transmitting the rotation to the inside of the flow cylinder 17. After contact with the flow wheel 15, the water flows out from multiple outlets 14. Each time the water flows through... After the flow meter 1 reaches the inside of the check pipe 2, the water flow will reach the inside of the check pipe 21 and, under its own water pressure, force open the duckbill structure of the first duckbill pipe 22 and the second duckbill pipe 23, thus passing through the check pipe 21. When the water flow reverses, due to the special duckbill structure of the first duckbill pipe 22 and the second duckbill pipe 23, the first duckbill pipe 22 and the second duckbill pipe 23 will close under the water pressure of the reverse-flowing water, thereby blocking the backflow. The first fixing block 24, which is fixed between the first duckbill pipe 22 and the second duckbill pipe 23 and is fixedly connected to the check pipe 21, plays a role in strengthening the stability of the first duckbill pipe 22 and the second duckbill pipe 23. Whenever the first duckbill pipe... When the first duckbill tube 22 and the second duckbill tube 23 are subjected to water pressure, the check cylinder 21 can buffer the stress on the first duckbill tube 22 and the second duckbill tube 23 by compressing the buffer spring 3, thereby maintaining the stability of the first duckbill tube 22 and the second duckbill tube 23. The spring pad 31 set between the check cylinder 2 and the buffer spring 3 optimizes the contact relationship between the buffer spring 3 and the check cylinder 2. Whenever the check cylinder 21 slides inside the check cylinder 2, the limiting rod 4 fixed to the side wall of the first fixing block 24 can limit the movement posture of the check cylinder 21 by contacting the limiting block 41, thereby preventing it from tilting. The multiple second fixing blocks 42 serve as fixing limits. The function of block 41 is that multiple positioning blocks 5 fixed to the side wall of check cylinder 21 contact the side walls of two adjacent positioning protrusions 51 respectively. Since the positioning blocks 5 and the positioning protrusions 51 are in contact with each other, check cylinder 21 will not be able to rotate relative to check pipe 2. At the same time, since the positioning blocks 5 and the positioning protrusions 51 are in contact, the water will be blocked by the positioning blocks 5 and the positioning protrusions 51. During the process of water flowing through filter screen 6, larger impurities will be filtered by filter screen 6. The sealing ring 7, which is set between flow cylinder 1 and check pipe 2 and is made of rubber, can fill the gap between flow cylinder 1 and check pipe 2 by deformation under force, thereby preventing water leakage.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-sensitivity anti-backflow smart water meter, comprising a flow cylinder (1), characterized in that: The flow cylinder (1) is internally fixed with a flow box (11); the flow box (11) has an inlet groove (12) and an outlet (14) on its side wall, and the inlet groove (12) and the outlet (14) are arranged in a circular array; the flow box (11) has an inner side wall fixed with a water baffle plate (13); the surface of the water baffle plate (13) has a water passage groove, and multiple water passage grooves are arranged in a circular array; the top of the flow box (11) is rotatably connected with a fixing rod (16); the bottom of the fixing rod (16) is fixed with a flow wheel (15), and the top of the fixing rod (16) is fixed with a gear (17); the top of the gear (17) is provided with a flow meter (18), and the flow meter (18) is fixed to the top of the flow cylinder (1).

2. The high-sensitivity anti-backflow smart water meter according to claim 1, characterized in that: A check pipe (2) is threaded onto the side wall of the flow cylinder (1); a check cylinder (21) is provided inside the check pipe (2); a first duckbill tube (22) and a second duckbill tube (23) are fixedly connected to the inner side wall of the check cylinder (21), and the first duckbill tube (22) and the second duckbill tube (23) are arranged in a corresponding manner; a first fixing block (24) is fixedly connected between the first duckbill tube (22) and the second duckbill tube (23), and the first fixing block (24) is fixedly connected to the check cylinder (21).

3. A high-sensitivity anti-backflow smart water meter according to claim 2, characterized in that: A buffer spring (3) is provided on the side wall of the check cylinder (21), and two buffer springs (3) are arranged in a corresponding manner; a spring pad (31) is provided on the side wall of the buffer spring (3), and the spring pad (31) contacts the inner side wall of the check pipe (2).

4. A high-sensitivity anti-backflow smart water meter according to claim 2, characterized in that: A limiting rod (4) is fixedly connected to the side wall of the first fixing block (24); a limiting block (41) is slidably connected to the side wall of the limiting rod (4); a second fixing block (42) is fixedly connected to the side wall of the limiting block (41), and multiple limiting blocks (41) are arranged in a corresponding manner; the ends of multiple second fixing blocks (42) away from the limiting block (41) are fixedly connected to the inner side wall of the check pipe (2).

5. A high-sensitivity anti-backflow smart water meter according to claim 2, characterized in that: The check cylinder (21) has a positioning block (5) fixedly connected to its side wall, and the multiple positioning blocks (5) are arranged in a circular array; the check pipe (2) has a positioning protrusion (51) fixedly connected to its inner side wall, and the multiple positioning protrusions (51) are arranged corresponding to the positions of the positioning blocks (5).

6. A high-sensitivity anti-backflow smart water meter according to claim 1, characterized in that: A filter screen (6) is provided on the inner wall of the flow cylinder (1), and the filter screen (6) is set according to the size of the flow cylinder (1).

7. A high-sensitivity anti-backflow smart water meter according to claim 6, characterized in that: A sealing ring (7) is provided between the flow cylinder (1) and the check pipe (2), and the sealing ring (7) is made of rubber.

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