Water meter with good waterproof and moistureproof sealing performance

Abstract

The utility model relates to the technical field of water meters, and discloses a water meter with good waterproof and moistureproof sealing performance, which comprises a lower shell, an upper shell and a fixed sealing cover, the top of one end, far away from the plugging groove, of the upper shell is provided with a mounting cavity for mounting the battery and the circuit board in a matched manner; the bottom of the upper shell is provided with an edge convex edge A which is inserted into the mounting groove and seals and packages the gear type metering chamber in the plugging groove and the lower shell; the fixed sealing cover is connected to the upper portion of the installation cavity in a sealing and covering mode through screws, the fixed sealing cover is provided with a frame type groove matched with an edge convex edge B at the top of the installation cavity in an inserted mode, the gear type metering chamber, the valve set, the circuit board and the battery are independently installed in a separated mode, water and moisture permeation can be prevented, and the overall waterproof and moistureproof performance is improved. And the design of the edge convex edge A and the edge convex edge B realizes sealed packaging and improves the connection stability.

Description

Technical Field

[0001] The utility model belongs to the technical field of water meters, and particularly relates to a water meter with good waterproof and moisture-proof sealing performance. Background Art

[0002] A water meter usually consists of a housing, a gear-type metering chamber, a valve group, a circuit board, a battery and other structures. The gear-type metering chamber and the valve group are mechanically connected to control the water flow. The outer shell and the additional components are connected together by mechanical means or adhesives to form an integral structure. The circuit board is used to realize data transmission and processing, and the battery provides the power required for the intelligent water meter to supply power.

[0003] In the traditional technology, the gear-type metering chamber, the valve group, the circuit board and the battery are centrally installed in the same housing. Installing all components in the same housing will limit the space inside the housing, resulting in restricted layout among components, which may affect the performance and reliability of the water meter. If the components are centrally installed in the same housing, once the housing is damaged, moisture and dampness may enter the interior of the water meter, causing components such as the circuit board and the battery to fail. If they are centrally installed in the same housing, when replacing components, the entire housing needs to be opened, making maintenance and replacement difficult. Summary of the Utility Model

[0004] In order to make up for the deficiencies of the prior art, that all components in the water meter are centrally installed in the same housing leads to difficult layout and maintenance, the utility model provides a water meter with good waterproof and moisture-proof sealing performance.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] A water meter with good waterproof and moisture-proof sealing performance includes a lower housing, an upper housing and a fixed cover. A gear-type metering chamber and a valve group are installed in an installation groove opened on the lower housing. One side bottom of the upper housing is provided with a plug-in groove that cooperates with the gear-type metering chamber for sealed plugging. The top of the end of the upper housing away from the plug-in groove is provided with an installation chamber for installing the battery and the circuit board. The bottom of the upper housing is provided with an edge convex A that is inserted into the installation groove and seals and encapsulates the gear-type metering chamber in the plug-in groove and the lower housing. The fixed cover is hermetically covered above the installation chamber through screws, and a frame-shaped groove is opened on the fixed cover for inserting and connecting with an edge convex B at the top of the installation chamber.

[0007] Preferably, the valve group penetrates through the lower housing, and the gear-type metering chamber and the valve group are connected by means of gear engagement.

[0008] Preferably, the top end of the insertion slot is communicated with the observation chamber. A limiting ring for limiting the gear-type metering chamber is arranged inside the insertion slot. A sealing gasket is arranged between the limiting ring and the gear-type metering chamber. A wiring opening is formed at the bottom end of the insertion slot.

[0009] The observation chamber provides a structure for conveniently observing the working state of the water meter. The limiting ring ensures the stable installation and sealing performance of the gear-type metering chamber, simplifying the connection and maintenance processes of the components. These advantages contribute to improving the performance and user experience of the water meter.

[0010] Preferably, a movable cover for sealing the observation chamber is hinged on the upper housing.

[0011] The design of the movable cover enables users to conveniently open and close the movable cover for operations such as observing the working state of the water meter.

[0012] Preferably, threaded hole columns are arranged in the installation cavity. An imitation groove for positioning the installation of the circuit board is fixed on the threaded hole columns by screws. Open slots A for wiring and cable arranging are formed around the imitation groove. When the imitation groove cooperates with the circuit board for encapsulation, the circuit board is encapsulated in the imitation groove by silica gel.

[0013] The designed structure of the threaded hole columns and the imitation groove has relatively high structural strength, enabling the circuit board to be firmly fixed in the installation cavity. This increases the durability of the water meter and effectively prevents the circuit board from loosening or being damaged due to vibration or impact during normal use and maintenance.

[0014] Preferably, a clamping groove for positioning the installation of the battery is fixedly arranged in the installation cavity. Open slots B for wiring and cable arranging are formed on the clamping groove.

[0015] The design of the clamping groove can ensure that the battery is stably fixed in the installation cavity, preventing the battery from shifting or falling off during operation, thereby improving the overall stability and reliability of the water meter. The design of the open slot B provides a convenient channel for wiring and cable arranging, enabling the wires to pass through the clamping groove and be connected to the battery.

[0016] Preferably, a wiring hole for wire harness penetration is formed on the bottom wall of the imitation groove. A rubber O-ring is arranged on the wiring hole.

[0017] The O-ring can form an effective seal to prevent moisture and dampness from penetrating into the installation cavity along the wiring hole.

[0018] Preferably, an outward convex edge is arranged at the top end of the upper housing. The outward convex edge is screwed to the fixed cover by a screw passing through it.

[0019] The design of the convex edge increases the structural strength of the upper shell. The screwing connection with the fixed cover makes the entire cover system more stable and reliable. The convex edge can play a certain role in dust prevention and water splash prevention.

[0020] Compared with the prior art, the technical effects and advantages of the present utility model are as follows: for this water meter with good waterproof and moisture-proof sealing performance, the gear type metering chamber, valve group, circuit board, and battery are separately and independently installed, and more professional sealing measures are adopted to ensure the sealing performance of each part, which helps to prevent the penetration of moisture and dampness, improve the overall waterproof and moisture-proof performance, and is convenient for maintenance and repair;

[0021] The upper shell of the installation chamber is hermetically inserted into the gear type metering chamber on the lower shell through the insertion slot. Such a design makes the gear type metering chamber fit tightly with the upper shell, and realizes hermetic packaging through the edge convex edge A. The fixed cover is fixed above the installation chamber by screws and is tightly connected to the upper shell. The fixed cover cooperates with the edge convex edge B at the top of the upper shell through the frame type groove, increasing the connection stability.

[0022] The top end of the upper shell is provided with a convex edge and is screwed to the fixed cover through a screw passing through it. This design increases the structural strength of the upper shell, maintains the stable connection between the fixed cover and the upper shell, and improves the reliability and durability of the entire cover system.

[0023] Wiring holes for wire harness penetration are opened on the bottom wall of the profiling groove, and rubber O-rings are provided on the wiring holes. Such a design can protect the wire harness from being damaged and pressed, and at the same time achieve sealing through the O-ring to prevent moisture and dampness from entering the installation chamber and ensure the normal operation of the circuit board. Description of the Drawings

[0024] Figure 1 is a structural schematic diagram of the present utility model;

[0025] Figure 2 is the first exploded view of the present utility model;

[0026] Figure 3 is the second exploded view of the present utility model;

[0027] Figure 4 is a structural schematic diagram of the profiling groove on the upper shell of the present utility model after disassembly;

[0028] Figure 5 is a structural schematic diagram of the profiling groove of the present utility model.

[0029] In the figure: 1. Lower housing; 2. Installation groove; 3. Gear-type metering chamber; 4. Valve group; 5. Upper housing; 6. Plug-in groove; 7. Installation chamber; 8. Edge convex edge A; 9. Fixed cover; 10. Edge convex edge B; 11. Frame-shaped groove; 12. Observation chamber; 13. Limit ring; 14. Wiring opening; 15. Movable cover; 16. Threaded hole column; 17. Profiled groove; 18. Opening groove A; 19. Clamping groove; 20. Opening groove B; 21. Wiring hole; 22. Outer convex edge. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] The following is a further detailed description of the present application in conjunction with the attached Figures 1-5 This application will be further described in detail.

[0032] The embodiment of the present application discloses a water meter with good waterproof, moisture-proof and sealing performance, including a lower housing 1, an upper housing 5 and a fixed cover 9. A gear-type metering chamber 3 and a valve group 4 are installed in the installation groove 2 opened on the lower housing 1. The valve group 4 penetrates through the lower housing 1. The gear-type metering chamber 3 and the valve group 4 are connected by means of gear engagement. When the gears in the metering chamber rotate, they will drive the gears in the valve group 4, thereby opening or closing the valve to control the water flow.

[0033] One side bottom of the upper housing 5 is provided with a plug-in groove 6 for sealing and plugging with the gear-type metering chamber 3. The top of one end of the upper housing 5 away from the plug-in groove 6 is provided with an installation chamber 7 for installing a battery and a circuit board. The bottom of the upper housing 5 is provided with an edge convex edge A8 that is inserted into the installation groove 2 and seals and encapsulates the gear-type metering chamber 3 in the plug-in groove 6 and the lower housing 1.

[0034] The fixed cover 9 is hermetically covered above the installation chamber 7 by screws. The fixed cover 9 is provided with a frame-shaped groove 11 for plugging with the edge convex edge B10 at the top of the installation chamber 7. The top end of the upper housing 5 is provided with an outer convex edge 22. The outer convex edge 22 is screwed with the fixed cover 9 through a screw passing through it.

[0035] The design of the convex edge 22 increases the structural strength of the upper housing 5. The screwing connection with the fixed cover 9 makes the entire cover system more stable and reliable. The convex edge 22 can play a certain role in dust and splash prevention, preventing external debris and moisture from entering the installation chamber 7, protecting internal components. The design of the convex edge 22 and the screw enables the fixed cover 9 to be easily disassembled and reinstalled, facilitating the maintenance and component replacement of the water meter. Connecting the fixed cover 9 to the upper housing 5 through screws ensures that the cover will not accidentally fall off under vibration and impact environments, improving the safety of the water meter.

[0036] The designs of the lower housing 1, the upper housing 5, and the fixed cover 9 help prevent moisture and dampness from entering the interior of the water meter. The gear-type metering chamber 3 and the valve group 4 are hermetically inserted into the lower housing 1 through the insertion slots 6, while the upper housing 5 is separated from the battery and the circuit board through the installation chamber 7. This design increases the independence of each component and improves the overall waterproof and moisture-proof performance. On one side of the bottom of the upper housing 5, there is an insertion slot 6 for hermetically inserting and mating with the gear-type metering chamber 3. This design allows the gear-type metering chamber 3 to fit tightly with the upper housing 5, saving space and improving the compactness of the water meter. The fixed cover 9 is hermetically screwed and capped above the installation chamber 7, making it relatively easy to maintain and replace the battery and the circuit board. The design of the edge convex edge A8 inserted into the installation slot 2 and hermetically encapsulating the gear-type metering chamber 3 within the insertion slot 6 and the lower housing 1 can ensure the safety of the gear-type metering chamber 3, preventing it from accidentally falling off or moving.

[0037] The circuit board and the battery are installed in the installation chamber 7, while the gear-type metering chamber 3 is hermetically encapsulated within the insertion slot 6 and the lower housing 1. Separately and independently installing the gear-type metering chamber 3 and the valve group 4 from the circuit board and the battery, compared with the traditional technology of centrally installing the gear-type metering chamber 3, the valve group 4, the circuit board, and the battery in the same housing, adopts more professional sealing measures to ensure the sealing performance of each part. This helps prevent the penetration of moisture and dampness and improves the overall waterproof and moisture-proof performance. When the gear-type metering chamber 3, the valve group 4, the circuit board, and the battery are installed separately, each part can use the materials and technologies most suitable for its working environment, thereby reducing the failure rate caused by concentration. For example, the circuit board may require better moisture-proof performance, while the gear-type metering chamber 3 may require stronger mechanical protection. Separately and independently installed components are easier to maintain and replace. If a certain part fails, it can be replaced individually without scrapping the entire water meter. Independent installation can reduce the complexity of the entire system, reduce the number of failure points, thereby improving the reliability and stability of the water meter. Separately and independently installing can make the design more compact and optimize the space utilization, especially in limited spaces.

[0038] The top end of the insertion slot 6 is connected to the observation chamber 12, enabling users to conveniently observe the working state of the gear-type metering chamber 3, thereby better understanding the working conditions of the water meter. Inside the insertion slot 6, there is a limiting ring 13 for limiting the gear-type metering chamber 3, which can ensure the stable and reliable installation of the gear-type metering chamber 3 in the insertion slot 6 and prevent it from moving or falling off. A sealing gasket is provided between the limiting ring 13 and the gear-type metering chamber 3 to ensure the sealing between the gear-type metering chamber 3 and the insertion slot 6 and prevent moisture and dampness from entering the interior of the water meter. At the bottom end of the insertion slot 6, there is a wiring opening 14, which facilitates users to connect the circuits of components such as the circuit board and the battery and is also convenient for maintenance and replacement of components.

[0039] The observation chamber 12 provides a structure for conveniently observing the working state of the water meter. The limiting ring 13 ensures the stable installation and sealing of the gear-type metering chamber 3, simplifying the connection and maintenance process of components. These benefits contribute to improving the performance and user experience of the water meter.

[0040] The upper housing 5 is hinged with a movable cover 15 for blocking the observation chamber 12.

[0041] The design of the movable cover 15 enables users to conveniently open and close the movable cover 15 for operations such as observing the working state of the water meter.

[0042] Inside the installation chamber 7, there is a threaded hole column 16. A profiling groove 17 for installing and positioning the circuit board in cooperation is fixed on the threaded hole column 16 by screws. The combined design of the threaded hole column 16 and the profiling groove 17 can ensure that the circuit board is accurately positioned and fixed in the installation chamber 7, preventing it from shifting or loosening. Open slots A18 for wiring and cable arranging are provided around the profiling groove 17. Such a design enables the wiring and cable arranging to conveniently pass through the installation chamber 7 and be connected to various parts of the circuit board. This simplifies the wiring process of the circuit board and is convenient for maintenance and replacement. When the profiling groove 17 cooperates with the circuit board encapsulation, the circuit board is encapsulated in the profiling groove 17 with silicone. Using silicone to encapsulate the circuit board in the profiling groove 17 can protect the circuit board from the external environment, such as the influence of moisture, dust or other impurities, and to a certain extent prevent artificial damage to the circuit board, thereby improving the safety and stability of the water meter.

[0043] The design structure of the threaded hole column 16 and the profiling groove 17 has relatively high structural strength, enabling the circuit board to be firmly fixed in the installation chamber 7. This increases the durability of the water meter and effectively prevents the circuit board from loosening or being damaged due to vibration or impact during normal use and maintenance.

[0044] Inside the installation chamber 7, there is a clamping groove 19 for installing and positioning the battery in cooperation. Open slots B20 for wiring and cable arranging are provided on the clamping groove 19.

[0045] The design of the clamping groove 19 can ensure that the battery is stably fixed within the installation chamber 7, preventing the battery from shifting or falling off during operation, thereby enhancing the overall stability and reliability of the water meter. The clamping groove 19 provides an accurate installation position for the battery, making the installation and replacement process of the battery more convenient. Users can easily insert or remove the battery according to the position of the clamping groove 19 without the need for special tools. The design of the opening groove B20 provides a convenient channel for the wiring harness, enabling the wire to pass through the clamping groove 19 and connect to the battery. This helps to simplify the circuit layout and reduce the complexity during the installation process. By taking into account the design of the battery and the wiring harness, the goal of waterproofing and moisture-proofing can be better achieved. The correct installation position of the battery can prevent battery short circuits or other safety issues. At the same time, the wiring harness is connected through the opening groove B20, which helps to prevent safety hazards caused by exposed wires.

[0046] A wiring hole 21 for the wiring harness to penetrate is provided on the bottom wall of the profiling groove 17, and a rubber O-ring is provided on the wiring hole 21.

[0047] The rubber O-ring can protect the wiring harness from being damaged or pressed in the wiring hole 21, ensuring the integrity of the wiring harness and the connection reliability of the wires. The O-ring can form an effective seal to prevent moisture and humidity from penetrating into the installation chamber 7 along the wiring hole 21, thereby protecting components such as the circuit board and the battery from being affected by moisture. The provision of the wiring hole 21 for the wiring harness to penetrate facilitates the layout and wiring of the wiring harness, reduces the complexity during the wiring process, and improves the installation efficiency.

[0048] With the above combination of designs and structures, this water meter with good waterproofing and moisture-proofing sealing performance can achieve the control of the gear-type metering chamber 3 and the valve group 4, the waterproofing and moisture-proofing sealing performance, the independent installation of the circuit board and the battery, the stability of the fixed cover 9, and the protection of the wiring harness, thereby enhancing the performance and reliability of the water meter.

[0049] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention 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 perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A water meter with good waterproof and moisture-proof sealing performance, characterized in that: include: A lower housing (1), wherein a gear-type metering chamber (3) and a valve group (4) are installed in a mounting groove (2) provided on the lower housing (1). An upper shell (5), wherein a plug-in slot (6) for sealingly plugging in the gear-type metering chamber (3) is provided at the bottom of one side of the upper shell (5), a mounting chamber (7) for mounting a battery and a circuit board is provided at the top of one end of the upper shell (5) away from the plug-in slot (6), and an edge convex edge A (8) is provided at the bottom of the upper shell (5) for inserting into the mounting slot (2) and sealingly encapsulating the gear-type metering chamber (3) in the plug-in slot (6) and the lower shell (1); A fixed cover (9) is connected to the top of the installation chamber (7) through a screw sealing cover, and a frame-type groove (11) is provided on the fixed cover (9) to be plugged into the edge convex edge B (10) on the top of the installation chamber (7).

2. A water meter with good waterproof, moisture-proof and sealing properties according to claim 1, characterized in that: The valve group (4) is arranged to penetrate the lower shell (1), and the gear-type metering chamber (3) and the valve group (4) are connected by means of gear meshing.

3. A water meter with good waterproof, moisture-proof and sealing properties according to claim 1, characterized in that: The top end of the plug-in slot (6) is connected to the observation chamber (12), a limiting ring (13) for limiting the position of the gear-type metering chamber (3) is provided on the inner side of the plug-in slot (6), a sealing gasket is provided between the limiting ring (13) and the gear-type metering chamber (3), and a wiring opening (14) is provided at the bottom end of the plug-in slot (6).

4. A water meter with good waterproof, moisture-proof and sealing properties according to claim 3, characterized in that: The upper shell (5) is hingedly provided with a movable cover (15) for sealing the observation chamber (12).

5. A water meter with good waterproof, moisture-proof and sealing properties according to claim 1, characterized in that: A threaded hole column (16) is provided in the installation chamber (7), and a contoured groove (17) is fixed on the threaded hole column (16) by screws to match the installation and positioning of the circuit board. The contoured groove (17) is surrounded by an open groove A (18) for wiring and arranging wires. When the contoured groove (17) is matched with the circuit board packaging, the circuit board is encapsulated in the contoured groove (17) by silica gel.

6. A water meter with good waterproof, moisture-proof and sealing properties according to claim 1, characterized in that: A positioning groove (19) for locating and installing the battery is fixedly provided in the installation chamber (7), and an opening groove B (20) for wiring the wiring harness is provided on the positioning groove (19).

7. A water meter with good waterproof, moisture-proof and sealing properties according to claim 5, characterized in that: A wiring hole (21) for inserting a wiring harness is provided on the bottom wall of the contoured groove (17), and a rubber O-ring is provided on the wiring hole (21).

8. A water meter with good waterproof, moisture-proof and sealing properties according to claim 1, characterized in that: The top end of the upper shell (5) is provided with an outer convex edge (22), and the outer convex edge (22) is screwed to the fixed cover (9) via screws passing through the outer convex edge (22).

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