Electromagnetic water meter

Abstract

The electromagnetic water meter comprises a water meter body and a meter head connected with the water meter body, the meter head comprises a meter head shell and a processor, a containing cavity is formed in the meter head shell and used for containing the processor and a power supply unit, and the processor and the power supply unit are electrically connected when placed in the containing cavity; the containing cavity is used for containing the first glue pouring mold box and the second glue pouring mold box, the first glue pouring mold box is used for containing the power supply unit and conducting glue pouring treatment after the power supply unit is placed in the first glue pouring mold box, and the second glue pouring mold box is used for containing the processor and conducting glue pouring treatment after the processor is placed in the second glue pouring mold box. The electromagnetic water meter is convenient to disassemble and assemble and convenient to maintain in the later period.

Description

Technical Field

[0001] The present application relates to the technical field of electromagnetic water meters, and in particular to an electromagnetic water meter. Background Art

[0002] Electromagnetic water meters use electromagnetic induction to detect flow. They are made based on Faraday's electromagnetic induction principle. The principle determines that electromagnetic water meters are less affected by bubbles and structures. This type of water meter has high measurement accuracy, no flow obstructions, and is hygienic and environmentally friendly. It has great advantages in applications such as tap water supply and other industries.

[0003] However, in the related art, the waterproof design based on the electromagnetic water meter often makes it difficult to disassemble and assemble the electromagnetic water meter, which is not conducive to maintenance. Summary of the invention

[0004] In order to solve the above problems, the present application provides an electromagnetic water meter, which includes: a water meter body and a meter head connected to the water meter body;

[0005] A meter head, comprising a meter head housing and a processor, wherein the meter head housing is formed with a receiving cavity, the receiving cavity is used to place the processor and the power supply unit, and the processor and the power supply unit are electrically connected when placed in the receiving cavity;

[0006] The accommodating cavity is used to place the first potting mold box and the second potting mold box. The first potting mold box is used to place the power supply unit, and the power supply unit is placed in the first potting mold box and then potted. The second potting mold box is used to place the processor, and then potted after the processor is placed in the second potting mold box.

[0007] Furthermore, a first connection part and a second connection part are provided at both ends of the water meter body, the first connection part and the second connection part are used to be fixedly connected to the pipeline, the first connection part and the second connection part of the water meter body are connected, and the water meter body is provided with a flow sensor;

[0008] The water meter body is also provided with a mounting seat, which is used to connect the meter head. When the meter head is connected to the mounting seat, the flow sensor is electrically connected to the power supply unit in the meter head through the mounting seat.

[0009] Furthermore, the meter head also includes an adapter block, which is sealed and connected to the meter head shell. The adapter block includes an aviation socket, which is arranged outside the accommodating cavity. The meter head shell is provided with a cable connection hole for threading cables. The aviation socket is electrically connected to the power supply unit through the cable, and the peripheral device is electrically connected to the power supply unit through the adapter block.

[0010] Furthermore, the meter head also includes a junction box, which is used to place an adapter board. The processor is electrically connected to the power supply unit through the adapter board, and the adapter board is placed in the junction box and then filled with glue.

[0011] Furthermore, the junction box is provided with a junction box fixing portion, through which the junction box can be fixed to the glue-filled surface of the power supply unit.

[0012] Furthermore, the first glue potting mold box is provided with a first fixing portion and a second fixing portion, the first fixing portion is used to fix the power supply unit inside the first glue potting mold box, and the second fixing portion is used to fix the first glue potting mold box to the inner wall of the header housing.

[0013] Furthermore, the second glue pouring mold box is provided with a second glue pouring mold box fixing portion, and the second glue pouring mold box is fixedly connected to the meter head housing through the second glue pouring mold box fixing portion.

[0014] Furthermore, the meter head also includes a meter head sealing cover, which is provided with a sight glass window, through which the indication of the electromagnetic water meter can be observed, and the sight glass window is provided with a sight glass lens made of a transparent material, which is supported by a glass support ring and forms a tight fit with the meter head sealing cover through two specifications of sealing rings.

[0015] Furthermore, the meter head housing is also provided with an air tightness detection hole for detecting air tightness.

[0016] Furthermore, a grounding wire is provided on the water meter body.

[0017] According to the above description, the present application ensures waterproof performance by filling the processor and the power supply unit with glue separately, thereby facilitating the disassembly and assembly of the electromagnetic water meter, which is beneficial to subsequent maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the overall structure of the electromagnetic water meter provided in this application.

[0019] Figure 2 This is a schematic diagram of the structure of the header part of the electromagnetic water meter provided in this application.

[0020] Figure 3 Schematic diagram of the main structure of the water meter provided for this application.

[0021] Figure 4 A schematic diagram of the placement of the power supply unit provided for this application.

[0022] Figure 5 This is a front view of the first glue casting mold box provided in this application.

[0023] Figure 6 This is a top view of the first glue filling mold box provided in this application.

[0024] Icons: 11. Water meter body; 111. First connection part; 112. Second connection part; 113. Flow sensor; 114. Pressure detection port; 115. Mounting seat; 12. Meter head; 121. Meter head housing; 1211. Cable connection hole; 1212. Screw cap hole; 1213. Waterproof groove; 1214. Sealant; 1215. Air tightness detection hole; 122. Processor; 123. Meter head sealing cover; 124. Sight glass; 125. Conversion block; 1251. Aviation socket; 1252. Screw hole; 126. Junction box; 127. Adapter plate; 128. Glass support ring; 129. Meter cover; 13. Pressure detection device; 131. Ball valve; 132. Pressure sensor; 133. Plug; 14. First glue pouring mold box; 15. Second glue pouring mold box; 16. Ground wire. DETAILED DESCRIPTION

[0025] The present application will be described in detail below in conjunction with the specific implementation modes shown in the accompanying drawings, but these implementation modes do not limit the present application. Structural, methodological, or functional changes made by ordinary technicians in the field based on these implementation modes are included in the protection scope of the present application.

[0026] like Figures 1 to 3 As shown, the embodiment of the present application discloses an electromagnetic water meter, including a water meter body 11 and a meter head 12:

[0027] The water meter body 11 is provided with a first connection part 111 and a second connection part 112 at both ends. The first connection part 111 and the second connection part 112 can be provided as flanges for sealingly connecting with pipelines. The first connection part 111 and the second connection part 112 of the water meter body 11 are connected, and water can flow through this channel. The water meter body 11 is provided with a flow sensor 113 for detecting the flow rate of water. The water meter body is also provided with a mounting seat 115, and the mounting seat 115 is used to connect the meter head. When the meter head is connected to the mounting seat 115, the flow sensor 113 is electrically connected to the power supply unit in the meter head through the mounting seat 115.

[0028] The meter head 12 includes a meter head housing 121 and a processor 122. The meter head housing 121 is formed with a receiving cavity, and the receiving cavity is used to place the processor 122 and the power supply unit. The processor 122 and the power supply unit are electrically connected when placed in the receiving cavity.

[0029] The meter head 12 also includes a transfer block 125, which includes an aviation socket 1251. The aviation socket 1251 is arranged outside the accommodating cavity. The meter head housing 121 is provided with a cable connection hole 1211 for threading cables. The aviation socket 1251 is electrically connected to the power supply unit through a cable. The peripheral device is electrically connected to the power supply unit through the transfer block 125 to realize power supply to the peripheral device.

[0030] Specifically, the power supply unit and the processor 122 are electrically connected via a waterproof cable to supply power to the processor 122 ; the power supply unit is electrically connected to the aviation socket 1251 via a waterproof cable to supply power to the peripheral device electrically connected to the aviation socket 1251 .

[0031] As an optional implementation, the processor 122 also realizes communication connection between the processor 122 and the peripheral device through the switching of the aviation socket 1251, so that the signal of the peripheral device can be transmitted to the processor 122. Specifically, for example, the electromagnetic water meter has functional expansion requirements, such as water temperature detection, water pressure detection, remote communication and other functional expansion requirements, and the corresponding peripheral device can be switched through the adapter block 125 to realize the electrical connection between the power supply unit and the peripheral device.

[0032] According to the above description, the electromagnetic water meter provided in the embodiment of the present application is provided with a cable connection hole 1211 on the meter head housing 121, and a switching block 125 arranged outside the meter head housing 121 matching the cable connection hole 1211 is provided. The processor 122 and the power supply unit can be switched through the switching block 125 arranged outside the meter head housing 121 to achieve the communication connection between the processor 122 and the peripheral device and the electrical connection between the power supply unit and the peripheral device. Through the above settings, when the electromagnetic water meter needs to be disassembled and assembled, the electromagnetic water meter head 12 and the peripheral device can be disassembled and assembled by a simple plug-in action, which greatly reduces the difficulty of disassembly and assembly of the electromagnetic water meter, facilitates the replacement of faulty components, and reduces the difficulty of later maintenance.

[0033] As an optional implementation, the meter head housing 121 is also provided with an air tightness detection hole 1215 for detecting air tightness. When the electromagnetic water meter is installed or maintained, the air tightness of the electromagnetic water meter can be detected through the air tightness detection hole 1215 to evaluate the waterproof performance of the electromagnetic water meter and determine whether the meter can continue to be used. Specifically, in the embodiment of the present application, the air tightness detection hole 1215 is arranged at the connection between the adapter block 125 and the meter head housing 121, and a gas transmission channel is arranged inside the adapter block 125, one end of the gas transmission channel can be connected to the air tightness detection hole 1215, and the other end can be connected to the outside world. After the overall assembly of the electromagnetic water meter is completed, the accommodating cavity formed by the meter head housing 121 can be pressed through the gas transmission channel of the adapter block 125 to detect the waterproof performance of the electromagnetic water meter. After completing the waterproof performance test of the electromagnetic water meter, the gas transmission channel in the adapter block 125 can be blocked to ensure the waterproof performance of the electromagnetic water meter while improving the aesthetics of the electromagnetic water meter.

[0034] As an optional implementation, the adapter block 125 is sealed and connected to the meter head housing 121 to prevent water from entering the container through the holes on the meter head housing 121 to damage the electronic components inside the housing cavity. Specifically, in the embodiment of the present application, the sealed connection between the adapter block 125 and the meter head housing 121 is achieved in the following manner: a plurality of screw holes 1252 are provided on the adapter block 125, a corresponding number of screw nut holes 1212 are provided at corresponding positions on the meter head housing 121, and a circle of waterproof grooves 1213 are also provided around the air tightness detection hole 1215 and the cable connection hole 1211 of the meter head housing 121 for placing the sealant 1214. The adapter block 125 is connected to the meter head housing 121 by screws to squeeze the sealant 1214 to achieve a sealed connection between the adapter block 125 and the meter head housing 121.

[0035] As an optional implementation, the electromagnetic water meter provided in the embodiment of the present application also includes a pressure detection device 13, and the water meter body 11 is provided with a pressure detection port 114. Among them, the pressure detection port 114 is used to provide pressure detection and adjustment requirements. The pressure detection device 13 includes a ball valve 131, a pressure sensor 132 and a plug 133. One end of the ball valve 131 is connected to the pressure detection port 114 to adjust the pressure of the pipeline to be tested to prevent excessive pressure and damage to the equipment; the other end of the ball valve 131 is connected to the pressure sensor 132 for detecting water flow; the pressure sensor 132 is connected to the plug 133, and the plug 133 is connected to the aviation socket 1251 to power the pressure sensor 132. Through the above settings, the electromagnetic water meter can not only detect the water flow, but also adjust and detect the water pressure.

[0036] As an optional implementation, the electromagnetic water meter provided in the embodiment of the present application further includes a first glue-filling mold box 14 and a second glue-filling mold box 15, both of which are placed in the accommodating cavity, the first glue-filling mold box 14 is used to place the power supply unit, and the power supply unit is placed in the first glue-filling mold box 14 and then glue-filled, the second glue-filling mold box 15 is used to place the processor 122, and the processor 122 is placed in the second glue-filling mold box 15 and then glue-filled. By performing glue-filling on the first glue-filling mold box 14 and the second glue-filling mold box 15, internal waterproof and dustproof protection can be formed to prevent moisture and dust entering the accommodating cavity from affecting the power supply unit and the processor 122.

[0037] Furthermore, if Figure 4 , Figure 5 , Figure 6As shown, the first glue-filling mold box 14 is provided with a first fixing portion and a second fixing portion. Among them, the first fixing portion is used to fix the power supply unit inside the first glue-filling mold box 14 to prevent the power supply component from shaking in the first glue-filling mold box 14. The second fixing portion is used to fix the first glue-filling mold box 14 to the inner wall of the meter head shell 121 to prevent the first glue-filling mold box 14 from shaking in the accommodating cavity of the meter head shell 121. Specifically, in an embodiment of the present application, the power supply unit includes five cylindrical power supply batteries, and the first fixing portion is a plum blossom-shaped groove to facilitate the fixed placement of five cylindrical batteries. The second fixing portion is arranged in a manner of adding raised screw holes 1252 on both sides of the first glue-filling mold box 14, and the meter head shell 121 is provided with screw nut holes 1212 at corresponding positions. The first glue-filling mold box 14 is fixed to the inner wall of the meter head shell 121 by screws to prevent the first glue-filling mold box 14 from shaking in the accommodating cavity of the meter head 12, thereby improving the impact resistance of the electromagnetic water meter.

[0038] like Figure 2 As shown, the second glue pouring mold box 15 is provided with a second glue pouring mold box 15 fixing portion, and the second glue pouring mold box 15 is fixedly connected to the meter head shell 121 through the second glue pouring mold box 15 fixing portion, so as to prevent the second glue pouring mold box 15 from shaking in the accommodating cavity of the meter head 12 and causing equipment failure. Specifically, in the embodiment of the present application, the second glue pouring mold box 15 fixing portion is provided in a manner of providing two screw holes on both sides of the mold box, and providing a corresponding number of screw holes at corresponding positions of the meter head shell 121, and the second glue pouring mold box 15 is fixedly connected to the meter head shell 121 through screws.

[0039] According to the above description, in the embodiment of the present application, the power supply unit and the processor 122 are respectively placed in two glue-filled mold boxes and glue-filled separately, thereby improving the waterproof performance of the electromagnetic water meter while facilitating the separation of the power supply unit and the processor 122, thereby reducing the difficulty of disassembly and assembly of the electromagnetic water meter.

[0040] As an optional implementation, the meter head 12 also includes a junction box 126, which is used to place an adapter plate 127. The processor 122 is electrically connected to the power supply unit through the adapter plate 127. The adapter plate 127 is placed in the junction box 126 and then filled with glue. Specifically, the adapter plate 127 provides an adapter connector, which is connected to the processor 122, the power supply unit and the aviation socket 1251 through cables. In this way, the connection points of the wires on the processor 122 and the flow sensor 113 and the signal output wires with the peripheral devices are all gathered in the junction box 126, which can reduce the risk of wire compression during installation, facilitate the cable installation of the electromagnetic water meter, and ensure the production quality of the electromagnetic water meter. In addition, the electromagnetic water meter provided in the present application also fills the junction box 126 with glue. The filling of glue in the junction box 126 can play a waterproof and moisture-proof effect. Even if the protection of the meter head housing 121 is damaged, it can ensure that the line will not be short-circuited due to water ingress. It can effectively prevent the problem of decreased sealing performance at the connection point seal in the electromagnetic water meter during use, and also improve the stability and waterproof performance of the connection point seal.

[0041] As an optional implementation, the junction box 126 is provided with a junction box 126 fixing portion, through which the junction box 126 can be fixed to the glue-filled surface of the power supply unit. Specifically, the junction box 126 fixing portion provides a flat surface, and the junction box 126 fixing portion can be adhered to the glue-filled surface of the power supply unit by adhesive, thereby preventing the junction box 126 from shaking in the accommodating cavity and causing the cable contacts to be disconnected, thereby improving the impact resistance of the electromagnetic water meter.

[0042] As an optional implementation, the meter head 12 further includes a meter head sealing cover 123. The meter head sealing cover 123 is provided with a sight glass window, through which the reading of the electromagnetic water meter can be observed, and the sight glass window is provided with a transparent sight glass 124, which is supported by a glass support ring 128 and is tightly matched with the meter head sealing cover 123 through two specifications of sealing rings, so as to improve the waterproof and dustproof effect of the electromagnetic water meter.

[0043] As an optional implementation, the meter head housing 121 also includes a meter cover 129, which is arranged on the sealing cover and connected to the sealing cover by rotation. During the use of the electromagnetic water meter, the meter cover 129 can be closed to further improve the waterproof and dustproof effect of the electromagnetic water meter.

[0044] As an optional implementation, the electromagnetic water meter provided in the embodiment of the present application further includes a grounding wire 16. The grounding wire 16 introduces the charge in the device or circuit into the ground, effectively avoiding the influence of charge accumulation on the meter measurement accuracy and potential dangers, thereby ensuring the normal operation and operational safety of the device.

[0045] Specifically, the electromagnetic water meter in this embodiment is provided with two grounding wires 16. The two grounding wires 16 are respectively located on the first connection part 111 and the second connection part 112 of the water meter body 11, so that the grounding wires 16 can be more stably and reliably connected to the earth, thereby improving the safety and stability of the electromagnetic water meter.

[0046] The above disclosure is only the preferred embodiment of the present application, but it is not intended to limit the scope of rights of the present application. A person of ordinary skill in the art can understand that without departing from the spirit and scope of the present application and the appended claims, changes, modifications, substitutions, combinations, and simplifications should all be equivalent replacement methods and still fall within the scope of the invention.

Claims

1. An electromagnetic water meter, characterized in that: The electromagnetic water meter comprises: A water meter body and a meter head connected to the water meter body, The meter head comprises a meter head housing and a processor, wherein the meter head housing is formed with a receiving cavity, wherein the receiving cavity is used to place the processor and the power supply unit, and the processor and the power supply unit are electrically connected when placed in the receiving cavity; The accommodating cavity is used to place the first potting mold box and the second potting mold box. The first potting mold box is used to place the power supply unit, and the power supply unit is potted after being placed in the first potting mold box. The second potting mold box is used to place the processor, and the processor is potted after being placed in the second potting mold box.

2. The electromagnetic water meter according to claim 1, characterized in that: The water meter body is provided with a first connection part and a second connection part at both ends, the first connection part and the second connection part are used to be fixedly connected to the pipeline, the first connection part and the second connection part of the water meter body are connected, and the water meter body is provided with a flow sensor; The water meter body is also provided with a mounting seat, and the mounting seat is used to connect the meter head. When the meter head is connected to the mounting seat, the flow sensor is electrically connected to the power supply unit in the meter head through the mounting seat.

3. The electromagnetic water meter according to claim 1, characterized in that: The meter head also includes a transfer block, which is sealed and connected to the meter head shell. The transfer block includes an aviation socket, which is arranged outside the accommodating cavity. The meter head shell is provided with a cable connection hole for passing a cable. The aviation socket is electrically connected to the power supply unit through the cable, and the peripheral device is electrically connected to the power supply unit through the transfer block.

4. The electromagnetic water meter according to claim 1, characterized in that: The meter head also includes a junction box, which is used to place an adapter board. The processor is electrically connected to the power supply unit via the adapter board. The adapter board is placed in the junction box and then filled with glue.

5. The electromagnetic water meter according to claim 4, characterized in that: The junction box is provided with a junction box fixing portion, through which the junction box can be fixed to the glue-filled surface of the power supply unit.

6. The electromagnetic water meter according to claim 1, characterized in that: The first glue potting mold box is provided with a first fixing portion and a second fixing portion, the first fixing portion is used to fix the power supply unit inside the first glue potting mold box, and the second fixing portion is used to fix the first glue potting mold box to the inner wall of the header housing.

7. The electromagnetic water meter according to claim 1, characterized in that: The second glue pouring mold box is provided with a second glue pouring mold box fixing portion, and the second glue pouring mold box is fixedly connected to the meter head housing through the second glue pouring mold box fixing portion.

8. The electromagnetic water meter according to claim 1, characterized in that: The meter head also includes a meter head sealing cover, which is provided with a sight glass window, through which the indication of the electromagnetic water meter can be observed, and the sight glass window is provided with a sight glass made of a transparent material, which is supported by a glass support ring and forms a tight fit with the meter head sealing cover through sealing rings of two specifications.

9. The electromagnetic water meter according to claim 1, characterized in that: The meter head housing is also provided with an air tightness detection hole for detecting air tightness.

10. The electromagnetic water meter according to claim 1, characterized in that: A grounding wire is arranged on the water meter body.

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