Electromagnetic water meter with automatic exhaust device

Abstract

The utility model relates to an electromagnetic water meter with an automatic exhaust device. The electromagnetic water meter comprises a water meter body. The water meter body is provided with a water channel. The water meter main body is provided with a mounting joint, and an automatic exhaust valve is mounted at the mounting joint; the mounting joint is provided with a first channel communicated with the water passing channel; the automatic exhaust valve comprises an exhaust valve body, a lifting floating body arranged in the exhaust valve body in a lifting and sliding mode, and a valve element assembly installed on the exhaust valve body and connected with the lifting floating body. The exhaust valve body is provided with a control valve cavity communicated with the first channel; gas in the electromagnetic water meter with the automatic exhaust device can be automatically exhausted through the exhaust valve body, and therefore the situation that the measurement accuracy of the electromagnetic water meter is affected due to gas accumulation on the inner surface of the electromagnetic water meter is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of intelligent water meter technology, and particularly relates to an electromagnetic water meter with an automatic air exhaust device. BACKGROUND

[0002] The electromagnetic water meter is a water meter for detecting flow by using electromagnetic induction. The electromagnetic water meter is installed on a pipeline. When water in the pipeline flows, a coil in the pipeline can test flow data. The data is transmitted to an electric control module through a signal line. The electric control module analyzes the data and uploads the data to a platform. Since there is gas in the water passing through the electromagnetic water meter, the gas in the water is easy to separate from the water and accumulate on the top surface of the inner cavity of the electromagnetic water meter. When the amount of bubbles accumulated in the inner cavity of the electromagnetic water meter is large, the magnetic field distribution in the electromagnetic water meter is affected, and the measurement accuracy of the electromagnetic water meter is affected. CONTENT OF THE UTILITY MODEL

[0003] In order to improve the situation that the gas accumulated on the inner surface of the electromagnetic water meter affects the measurement accuracy of the electromagnetic water meter, the present application provides an electromagnetic water meter with an automatic air exhaust device.

[0004] The electromagnetic water meter with an automatic air exhaust device provided by the present application adopts the following technical scheme:

[0005] The electromagnetic water meter with an automatic air exhaust device comprises a water meter main body. The water meter main body has a water passage. The water meter main body is provided with a mounting connector, and an automatic air exhaust valve is mounted at the mounting connector. The mounting connector has a first passage in communication with the water passage. The automatic air exhaust valve comprises an air exhaust valve body, a lifting float arranged in the air exhaust valve body, and a valve core assembly mounted on the air exhaust valve body and connected with the lifting float. The air exhaust valve body has a control valve cavity in communication with the first passage. The lifting float is lifted in the control valve cavity and has a first station and a second station. The height of the first station is higher than the height of the second station. When the lifting float is at the first station, the valve core assembly is in a sealing state. When the lifting float is at the second station, the valve core assembly is in an open state.

[0006] By adopting the technical scheme, when the electromagnetic water meter is working, water flow carrying gas through the water passage enters the exhaust valve body through the installation joint, the lifting float rises from the second position to the first position due to the water buoyancy, the valve core assembly is in a sealing state, and after long-term work, the accumulated amount of gas in the exhaust valve body gradually increases, so that the lifting float falls from the first position to the second position, the valve core assembly is in an open state, the gas in the exhaust valve body enters the atmosphere through the valve core assembly, and then the lifting float resets to the first position, so that the gas on the inner surface of the electromagnetic water meter can be automatically discharged through the exhaust valve body, and the situation that the measurement accuracy of the electromagnetic water meter is affected by the accumulation of gas on the inner surface of the electromagnetic water meter is improved.

[0007] Optionally, the valve core assembly comprises a valve core seat arranged in the exhaust valve body, a movable valve rod movably arranged in the inner end of the valve core seat, and an elastic member connecting the valve core seat and the movable valve rod; the valve core seat is provided with an exhaust hole communicating the inner cavity of the exhaust valve body with the atmosphere, and the exhaust hole is formed with an exhaust port at the inner end of the valve core seat; the movable valve rod is provided with a sealing head for sealing the exhaust port; the elastic member drives the sealing head to always have a tendency to seal the exhaust port; and the movable valve rod is connected with the lifting float.

[0008] By adopting the technical scheme, the specific structure of the valve core assembly is disclosed, the elastic member is connected with the movable valve rod and the valve core seat, so that the sealing head of the movable valve rod always has a tendency to seal the exhaust port. When the movable valve rod is swung under force, the sealing head will be offset, so that the exhaust port is opened and the valve core assembly is in an open state; when the movable valve rod is not under external force, the elastic member drives the movable valve rod to reset, so that the sealing head seals the exhaust port.

[0009] Optionally, the elastic member is a valve core spring, the valve core spring comprises a first locking segment sleeved on the valve core seat, a second locking segment sleeved on the outer side of the movable valve rod, and an intermediate segment connecting the first locking segment and the second locking segment; and the intermediate segment is provided with an air gap for air flow.

[0010] By adopting the technical scheme, the specific structure of the elastic member, the connection structure of the elastic member and the valve core seat, and the connection structure of the elastic member and the movable valve rod are disclosed. The intermediate segment of the elastic member is provided with an air gap, which is helpful for the discharge of gas when the valve core assembly is in an open state.

[0011] Optionally, the sealing head is in the shape of an arc-shaped ball head, and the valve core seat is provided with an arc-shaped sealing groove for arranging the sealing head.

[0012] By adopting the technical scheme, the matching mode of the sealing head and the valve core seat is further limited, the arc-shaped ball head structure and the arc-shaped sealing groove are adopted, the sealing effect of the sealing head on the exhaust port is relatively ideal, and the resetting of the sealing head at the arc-shaped sealing groove is facilitated.

[0013] Optionally, the valve core seat is threadedly installed in the drain valve body, and the drain valve body has a mounting hole for threadedly arranging the valve core seat.

[0014] By adopting the technical scheme, the specific structure that the valve core seat is installed in the drain valve body is disclosed, and the valve core seat and the drain valve body are connected through the threaded structure. The connection mode is convenient to install and has ideal reliability.

[0015] Optionally, the top of the lifting float is provided with a clamping hole for arranging the up-and-down swinging of the movable valve rod.

[0016] By adopting the technical scheme, the specific connection structure of the lifting float and the movable valve rod is disclosed, and the movable valve rod is arranged to swing in the clamping hole of the lifting float, so that the lifting float can reliably drive the swinging of the movable valve rod.

[0017] Optionally, the bottom end of the exhaust valve body has a first threaded joint, and the top of the mounting joint has a first threaded groove for mounting the first threaded joint.

[0018] By adopting the technical scheme, the mounting structure of the exhaust valve body and the mounting joint is disclosed, and the mounting structure has ideal connection strength of the mounting joint and the exhaust valve body.

[0019] Optionally, the water meter body is provided with a gas guide member in the first channel, the gas guide member comprises a sealing gasket ring located on the ground of the first threaded groove, a connecting pipe connected to the sealing gasket ring and located in the first channel, and a gas guide head connected to the bottom end of the connecting pipe and located in the water passage, and the gas guide head is circumferentially provided with a gas guide opening for passing bubbles into the connecting pipe.

[0020] By adopting the technical scheme, the sealing gasket ring in the gas guide member helps to improve the sealing performance of the mounting joint and the exhaust valve body, and the gas guide head in the gas guide member helps to improve the probability of bubbles located at the top of the water passage into the exhaust valve body.

[0021] Optionally, the mounting joint is located at the outlet end of the water meter body.

[0022] By adopting the technical scheme, compared with arranging the mounting joint at the inlet end of the water meter body, arranging the mounting joint at the outlet end of the water meter body can reduce the influence of the installation of the automatic exhaust valve on the data detection of the electromagnetic water meter.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. An electromagnetic water meter with automatic exhaust device, by setting the exhaust valve body, valve core assembly and lifting float, so that the gas enters the exhaust valve body with the water flow, then the gas accumulates on the top surface of the exhaust valve body to make the valve core assembly enter the open state, and the gas is discharged through the exhaust hole, so that the gas on the inner surface of the electromagnetic water meter can be automatically discharged through the exhaust valve body, improving the situation that the gas accumulation on the inner surface of the electromagnetic water meter affects the measurement accuracy of the electromagnetic water meter;

[0025] 2. By setting the air guide at the installation joint, it is helpful to guide the air bubbles in the water passage into the automatic exhaust valve, and discharge the air bubbles through the automatic exhaust valve, further improving the situation that the gas accumulation on the inner surface of the electromagnetic water meter affects the measurement accuracy of the electromagnetic water meter;

[0026] 3. By setting the installation joint at the outlet end of the water meter body, it is helpful to reduce the influence of the installation of the automatic exhaust valve on the data detection of the electromagnetic water meter. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a schematic diagram of the structure of the electromagnetic water meter with automatic exhaust device in the embodiment of the present application.

[0028] Figure 2 is a schematic diagram of the local section of the electromagnetic water meter with automatic exhaust device in the embodiment of the present application.

[0029] Figure 3 is Figure 2 is a local enlarged schematic diagram of A in

[0030] BRIEF DESCRIPTION OF DRAWINGS 1, water meter body; 11, water meter pipeline; 111, water passage; 112, inlet end; 113, outlet end; 114, installation joint; 1141, first channel; 1142, first threaded groove; 115, air guide; 1151, gasket ring; 1152, connecting pipe; 1153, air guide head; 1154, air guide port; 12, detection shell; 13, detection assembly; 14, detection meter head; 2, automatic exhaust valve; 21, exhaust valve body; 211, first threaded joint; 212, control valve cavity; 213, mounting hole; 22, lifting float; 223, clamping hole; 231, valve core seat; 2311, exhaust through hole; 2313, arc-shaped sealing groove; 232, movable valve rod; 2321, sealing head; 233, elastic member; 2331, first locking section; 2332, second locking section; 2333, middle section; 2334, air gap. DETAILED DESCRIPTION

[0031] The following will be described in detail in combination with the accompanying Figures 1-3 The present application will be further described in detail.

[0032] The application discloses an electromagnetic water meter with an automatic exhaust device. Figure 1 The electromagnetic water meter with the automatic exhaust device comprises a water meter body 1 and an automatic exhaust valve 2 installed on the water meter body 1.

[0033] The water meter body 1 comprises a water meter pipeline 11, a detection shell 12 installed on the outer side of the water meter pipeline 11, a detection assembly 13 arranged between the detection shell 12 and the water meter pipeline 11, and a detection meter head 14 installed on the detection shell 12 and connected with the detection assembly 13. Figure 1 The detection assembly 13 is located on the outer side of the middle region of the water meter pipeline 11 and mainly detects the water flow in the middle region of the water meter pipeline 11. The water meter pipeline 11 has a water passage 111 and comprises an inlet end 112 and an outlet end 113 along the direction of the water flow. The water flow enters the water meter pipeline 11 through the inlet end 112, is detected by the detection assembly 13 when passing through the middle region of the water meter pipeline 11, and exits the water meter pipeline 11 through the outlet end 113. The detection assembly 13 feeds back the detected data to the detection meter head 14.

[0034] The water meter pipeline 11 is provided with a mounting joint 114 for mounting the automatic exhaust valve 2 at the outlet end 113. Figure 2 The mounting joint 114 is integrally formed with the water meter pipeline 11 and has a first channel 1141 communicating with the top of the water passage 111. The top of the mounting joint 114 has a first threaded groove 1142 for mounting the automatic exhaust valve 2 and communicating with the first channel 1141.

[0035] The water meter pipeline 11 is provided with a gas guide piece 115 in the first channel 1141. Figure 2 The gas guide piece 115 has a sealing gasket ring 1151 located on the bottom surface of the first threaded groove 1142, a connecting pipe 1152 connected to the sealing gasket ring 1151 and located in the first channel 1141, and a gas guide head 1153 connected to the bottom end of the connecting pipe 1152 and located in the water passage 111. The gas guide head 1153 is in a hollow semispherical shape, and the outer surface of the gas guide head 1153 is circumferentially spaced apart to be provided with gas guide openings 1154 for allowing gas bubbles to enter the connecting pipe 1152.

[0036] The automatic exhaust valve 2 comprises a valve body 21, a lifting float 22 arranged in the valve body 21, and a valve core assembly installed on the valve body 21 and connected with the lifting float 22. Figure 2 The bottom end of the valve body 21 is provided with a first threaded joint 211, and the valve body 21 is mounted on the water meter body 1 by cooperating with the first threaded groove 1142 through the first threaded joint 211.

[0037] The automatic exhaust valve 2 comprises a valve body 21, a lifting float 22 arranged in the valve body 21, and a valve core assembly installed on the valve body 21 and connected with the lifting float 22. Figure 2, the exhaust valve body 21 has a control valve cavity 212 communicating with the first channel 1141 and for the lifting float 22 to lift. The lifting float 22 lifts in the control valve cavity 212 and has a first position and a second position, the height of the first position is higher than the height of the second position. When the lifting float 22 is in the first position, the top surface of the lifting float 22 abuts against the top surface of the control valve cavity 212; when the lifting float 22 is in the second position, the bottom surface of the lifting float 22 abuts against the bottom surface of the control valve cavity 212. The top of the lifting float 22 is provided with a clamping hole 223. The clamping hole 223 is a square hole and is arranged towards the valve core assembly.

[0038] With reference to Figure 2 and Figure 3 , the valve core assembly has a valve core seat 231 arranged in the exhaust valve body 21, a movable valve stem 232 movably mounted at the inner end of the valve core seat 231, and an elastic member 233 connecting the valve core seat 231 and the movable valve stem 232. Among them, the exhaust valve body 21 has a mounting hole 213 for the threaded installation of the valve core seat 231 and is horizontally arranged, the valve core seat 231 is rotatably mounted on the top end side of the exhaust valve body 21 through the mounting hole 213, the valve core seat 231 is provided with an exhaust through hole 2311 communicating the inner cavity of the exhaust valve body 21 with the atmosphere, and the exhaust through hole 2311 is formed with an exhaust port at the inner end of the valve core seat 231.

[0039] With reference to Figure 3 , the movable valve stem 232 has a sealing head 2321 for sealing the exhaust port. Among them, the sealing head 2321 is a rubber sealing head and is in the shape of an arc-shaped ball head. The valve core seat 231 has an arc-shaped sealing groove 2313 for the arrangement of the sealing head 2321.

[0040] With reference to Figure 3 , the elastic member 233 is a valve core spring and includes a first locking segment 2331 sleeved on the valve core seat 231, a second locking segment 2332 sleeved on the outer side of the movable valve stem 232, and an intermediate segment 2333 connecting the first locking segment 2331 and the second locking segment 2332. The intermediate segment 2333 has an air passage gap 2334 for air flow. The elastic member 233 drives the sealing head 2321 to always have the tendency to seal the exhaust port. When the sealing head 2321 seals the exhaust port, the valve core seat 231, the elastic member 233 and the movable valve stem 232 are coaxial and horizontally arranged.

[0041] With reference to Figure 2 and Figure 3The tail end of the movable valve rod 232 is inserted into the clamping hole 223 of the lifting float 22, and the movable valve rod 232 can swing in the clamping hole 223 during the lifting of the lifting float 22. When the lifting float 22 is in the first position, the movable valve rod 232 is horizontally arranged, and the valve core assembly is in the sealing state. When the lifting float 22 is in the second position, the lifting float 22 swings the movable valve rod 232 downward, the elastic member 233 is deformed, and the valve core assembly is in the open state.

[0042] In combination Figures 1 to 3 , the working principle of the electromagnetic water meter with the automatic exhaust device is as follows: when the electromagnetic water meter starts to work, the water flow passing through the water passage 111 carries the gas into the exhaust valve body 21 through the installation joint 114, the lifting float 22 rises from the second position to the first position due to the buoyancy of the water, and the valve core assembly is in the sealing state; when the accumulated amount of the gas in the exhaust valve body 21 gradually increases, the lifting float 22 falls from the first position to the second position, the valve core assembly is in the open state, the gas in the exhaust valve body 21 enters the atmosphere through the valve core assembly, then the lifting float 22 resets to the first position, and the elastic member 233 drives the movable valve rod 232 to reset, so that the valve core assembly enters the sealing state again.

[0043] The above are the preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. An electromagnetic water meter with an automatic exhaust device, comprising a water meter body (1); the water meter body (1) has a water passage (111); characterized in that: The water meter body (1) is provided with a mounting joint (114) and an automatic exhaust valve (2) is installed at the mounting joint (114); the mounting joint (114) has a first channel (1141) communicating with the water passage (111); the automatic exhaust valve (2) comprises an exhaust valve body (21), a lifting float (22) arranged in the exhaust valve body (21) for lifting and sliding, and a valve core assembly installed on the exhaust valve body (21) and connected to the lifting float (22); the exhaust valve body (21) has a control valve cavity (212) communicating with the first channel (1141), the lifting float (22) rises and falls in the control valve cavity (212) and has a first position and a second position; the height of the first position is higher than the height of the second position; when the lifting float (22) is in the first position, the valve core assembly is in a sealed state; when the lifting float (22) is in the second position, the valve core assembly is in an open state.

2. The electromagnetic water meter with automatic exhaust device according to claim 1, characterized in that: The valve core assembly comprises a valve core seat (231) provided on the exhaust valve body (21), a movable valve stem (232) movably mounted on the inner end of the valve core seat (231), and an elastic member (233) connecting the valve core seat (231) and the movable valve stem (232); the valve core seat (231) is provided with an exhaust through hole (2311) connecting the inner cavity of the exhaust valve body (21) and the outside atmosphere, and the exhaust through hole (2311) forms an exhaust port at the inner end of the valve core seat (231); the movable valve stem (232) has a sealing head (2321) for sealing the exhaust port; the elastic member (233) drives the sealing head (2321) to always have a tendency to seal the exhaust port; the movable valve stem (232) is connected to the lifting float (22).

3. The electromagnetic water meter with automatic exhaust device according to claim 2, characterized in that: The elastic member (233) is a valve core spring, which includes a first locking section (2331) sleeved on the valve core seat (231), a second locking section (2332) sleeved on the outside of the movable valve stem (232), and an intermediate section (2333) connecting the first locking section (2331) and the second locking section (2332); the intermediate section (2333) has a ventilation gap (2334) for air circulation.

4. The electromagnetic water meter with automatic exhaust device according to claim 2, characterized in that: The sealing head (2321) is in the shape of an arc-shaped spherical head, and the valve core seat (231) has an arc-shaped sealing groove (2313) for arranging the sealing head (2321).

5. The electromagnetic water meter with automatic exhaust device according to claim 2, characterized in that: The valve core seat (231) is threadedly mounted on the exhaust valve body (21), and the exhaust valve body (21) has a mounting hole (213) for threading the valve core seat (231).

6. The electromagnetic water meter with automatic exhaust device according to claim 2, characterized in that: A clamping hole (223) for the movable valve stem (232) to swing up and down is provided on the top of the lifting float (22).

7. The electromagnetic water meter with automatic exhaust device according to claim 2, characterized in that: The bottom end of the exhaust valve body (21) has a first threaded joint (211); the top of the installation joint (114) has a first threaded groove (1142) for installing the first threaded joint (211).

8. The electromagnetic water meter with automatic exhaust device according to claim 7, characterized in that: The water meter body (1) is provided with an air guide member (115) in the first channel (1141), and the air guide member (115) comprises a sealing ring (1151) located on the bottom surface of the first threaded groove (1142), a connecting pipe (1152) connected to the sealing ring (1151) and located in the first channel (1141), and an air guide head (1153) connected to the bottom end of the connecting pipe (1152) and located in the water passage (111); the air guide head (1153) is circumferentially arranged with air guide ports (1154) for allowing bubbles to pass into the connecting pipe (1152).

9. The electromagnetic water meter with automatic exhaust device according to claim 1, characterized in that: The installation joint (114) is located at the outlet end (113) of the water meter body (1).

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