A dry water meter that is easy to read

Abstract

This utility model discloses a convenient dry water meter, including a bezel and a module assembly. The bezel is used to fix the counting mechanism of the dry water meter and includes a water meter base, a fixed ring, a rotating ring, and a housing. The fixed ring is disposed on the water meter base, and the rotating ring is adapted to the fixed ring and rotates relative to the fixed ring. The housing is disposed outside the rotating ring, and the module assembly is connected to the housing. A PCB module is disposed within the module assembly. This utility model sets the bezel to a rotatable structure, achieving 360-degree rotation, allowing the upper part of the water meter to rotate flexibly. This enables adjustable adaptation angles when the protective cover is open within a limited installation space, improving the convenience of water meter installation, meter reading, and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of water meters, specifically a dry water meter that is easy to read. Background Technology

[0002] Dry-type water meters, because their counting mechanism is isolated from the water being measured, are unaffected by suspended impurities in the water, ensuring normal operation of the counting mechanism and clear readings. Unlike wet-type water meters, they do not suffer from fogging or condensation under the glass due to temperature differences between the inside and outside of the meter, which can affect meter readings. Dry-type water meters are widely used in residential communities, commercial buildings, pharmaceutical and food processing plants, and agricultural irrigation. With the advancement of smart city construction, dry-type water meters are developing towards IoT integration, combining remote meter reading and real-time monitoring technologies, and are compatible with prepaid smart water meter base meters. Contactless IC card dry-type water meters achieve anti-theft functionality through structural isolation design, with an operating temperature range of 0.1℃-90℃ and a flow rate range of 0.00625-7.875m³. 3 / h.

[0003] The biggest difference between dry-type and wet-type water meters lies in their metering mechanisms. In dry-type meters, the impeller and central gear are separate. A magnetic element (magnetic ring or cylindrical magnet) at the upper end of the impeller is coupled to a magnetic element at the lower end of the central gear. When water flow drives the impeller to rotate, the magnetic element at the upper end of the impeller attracts or repels the magnetic element at the lower end of the central gear, driving the central gear to rotate synchronously. A centrally driven counter records the amount of water flowing through the meter.

[0004] The counting mechanism of a dry-type water meter relies on the gearbox being isolated from the water being measured. Therefore, the bottom and sides of the gearbox must be able to withstand a pressure test of 2MPa without deformation. For this reason, in designing dry-type water meters, in addition to adding more than ten reinforcing ribs to the top and bottom of the gearbox, a metal bowl-shaped liner is often used to line the top, bottom, and inner wall of the gearbox to prevent deformation under pressure. There is a shaft hole at the center of the top and bottom of the gearbox, which mates with the central gear shaft and the impeller shaft, respectively.

[0005] As existing dry-type water meters are evolving towards IoT integration, incorporating remote meter reading and real-time monitoring technologies, the protective requirements for the internal modules and components are becoming increasingly stringent. Batteries and circuit boards require high levels of waterproofing, as prolonged exposure to humid environments can lead to water seepage through cover gaps and plastic walls. Furthermore, the fixed structure of existing dry-type water meters restricts the flexibility of cover opening angles, making manual meter reading and maintenance difficult. Sufficient space must be reserved above the cover, restricting installation space and environmental considerations. Summary of the Invention

[0006] The purpose of this invention is to provide a dry water meter that is easy to read, so as to solve the problems mentioned in the background art.

[0007] The technical solution of this utility model is: a dry water meter with convenient reading, including a bezel and a module assembly. The bezel is used to fix the counting mechanism of the dry water meter. The bezel includes a water meter base, a fixed ring, a rotating ring, and a housing. The fixed ring is disposed on the water meter base. The rotating ring is adapted to the fixed ring and rotates relative to the fixed ring. The housing is disposed outside the rotating ring. The module assembly is connected to the housing. A PCB module is disposed inside the module assembly.

[0008] Preferably, an inner support ring is provided above the fixed ring. The inner support ring is a through design, with its bottom abutting against the fixed ring. A metal inner cover is provided in the middle of the inner support ring. The interior of the metal inner cover is a cavity that accommodates the dry water meter counting mechanism. A dial is provided above the cavity, and a dial cover is provided above the dial. An induction metal coil is provided on the dial.

[0009] As a further preferred embodiment, the inner support ring is provided with a rotating ring on its outside. The rotating ring is designed to be through. The inner ring at the upper end of the rotating ring is provided with an upper abutment edge extending downwards. The upper abutment edge abuts against the upper part of the inner support ring from top to bottom. The inner surface at the lower end of the rotating ring is provided with a plurality of lower hooks, which are adapted to and connected to the fixing ring.

[0010] As a further preferred embodiment, the outer shell covers the outside of the rotating ring, and a plurality of upper hooks are evenly distributed on the upper abutting edge of the rotating ring. The outer shell is provided with a plurality of notches, and fastening bodies are provided at the notches. The upper hooks of the rotating ring are fastened to the fastening bodies. The bottom outer surface of the rotating ring is provided with a limiting protrusion, and a limiting notch is provided at the corresponding position on the outer shell. The limiting protrusion is located at the limiting notch and extends beyond the limiting notch.

[0011] Preferably, the outer surface of the housing is further provided with a concave-convex gripping area.

[0012] Preferably, the module assembly includes a module box, a battery, a PCB module, and a top cover, with the top cover fastened to the module box to form a box housing the battery and the PCB module.

[0013] As a further preferred embodiment, the battery is located inside the module box, the PCB module is located above the battery, and the battery and the PCB module are connected by wires. The PCB module has a sensing part that extends towards the bezel, and below the sensing part is the dry water meter counting mechanism. The sensing part is directly opposite the induction metal coil of the dry water meter counting mechanism.

[0014] As a further preferred embodiment, the connection between the module box and the top cover is provided with a leak-proof groove, the space between the module box and the top cover is filled with sealant, the PCB module is provided with an antenna and an indicator light, the indicator light is provided with an indicator light cover above the indicator light, and the PCB module, battery and indicator light cover are all immersed in sealant.

[0015] As a further preferred embodiment, the module box is provided with a fixed connection portion extending to the upper surface of the outer shell of the bezel portion. The connection portion is fixedly connected to the upper surface of the outer shell by module box connecting screws. The bezel portion also includes a protective cover. The top of the outer shell is provided with a protective cover connection portion. The protective cover is hinged to the protective cover connection portion and can rotate. When the protective cover is closed, it covers the fixed connection portion of the module box.

[0016] Compared with the prior art, the beneficial effects of this utility model are: This invention features a rotatable bezel, allowing for 360-degree rotation. This enables the upper part of the water meter to move freely, allowing for adjustable angles even when the protective cover is open within limited installation space. This significantly improves the convenience of water meter installation, reading, and maintenance. The modular components of this invention utilize a potting compound. Sealant is applied to the assembly formed by the module box and the top cover, immersing the PCB board, battery, and other components within the sealant for effective waterproofing and moisture protection, ensuring the normal operation of the entire device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is the right view of the present invention.

[0019] Figure 3 This is the front view of the present invention.

[0020] Figure 4 This is a top view of the present invention.

[0021] Figure 5 This is a CC cross-sectional view of the present invention.

[0022] Figure 6 This is an exploded view of the present invention.

[0023] Figure 7 This is a BB cross-sectional view of the present invention.

[0024] Figure 8 This is a top view of the bezel portion of this utility model, with some parts omitted.

[0025] Figure 9 This is a DD cross-sectional view of the present invention.

[0026] Figure 10 In order to be in Figure 9 The DD perspective sectional view after omitting the inner support ring.

[0027] Figure 11 This is a cross-sectional view of the present invention.

[0028] Figure 12 This is a schematic diagram of the external structure of the bezel portion of this utility model, omitting some parts.

[0029] Label Explanation: 1: Module box; 101: Fixed connection part; 2: Top cover; 21: Leak-proof groove; 3: Protective cover; 5: Water meter base; 6: Outer shell; 61: Protective cover connection part; 62: Notch; 63: Concave-convex grip area; 64: Limiting notch; 65: Fastener; 7: Rotating ring; 72: Lower hook body; 73: Upper abutment; 74: Limiting protrusion; 75: Upper hook body; 8: Inner support ring; 9: Metal inner cover; 91: Dial; 92: Dial cover; 93: Induction metal coil; 10: Fixing ring; 11: Indicator light cover; 12: Battery; 13: PCB module; 14: Module box connecting screws. Detailed Implementation

[0030] like Figure 1-12 As shown, a convenient dry water meter includes a bezel and a module assembly. The bezel is used to fix the counting mechanism of the dry water meter. The bezel includes a water meter base 5, a fixing ring 10, a rotating ring 7, and a housing 6. The fixing ring 10 is disposed on the water meter base 5. The rotating ring 7 is adapted to the fixing ring 10 and rotates relative to the fixing ring 10. The housing 6 is disposed outside the rotating ring 7. The module assembly is connected to the housing 6. A PCB module 13 is disposed inside the module assembly.

[0031] like Figure 5As shown, in this embodiment, an inner support ring 8 is provided above the fixed ring 10. The inner support ring 8 is a through design, with its bottom abutting against the fixed ring 10. A metal inner cover 9 is provided in the middle of the inner support ring 8. The function of the inner support ring 8 is to fix the metal inner cover 9 and prevent it from shaking. The metal inner cover 9 is the bowl-shaped liner with metal lining on the bottom and inner wall of the gear box mentioned in the background art. The interior of the metal inner cover 9 is a cavity that houses the dry water meter counting mechanism. A dial 91 is provided above the cavity, and a dial cover 92 is provided above the dial 91. An induction metal coil 93 is provided on the dial 91. The induction metal coil 93 is part of the dry water meter counting mechanism. The metal induction coil is rotated by the gears inside the counting mechanism, transmitting data to the PCB module 13. The PCB module 13 records the data and transmits it to the control center via a communication antenna, realizing remote meter reading and real-time monitoring. Remote meter reading and real-time monitoring are not the contents protected by this utility model and will not be described in detail here.

[0032] like Figure 7-12 As shown, in this embodiment, a rotating ring 7 is provided outside the inner support ring 8. The rotating ring 7 is a through design, and the inner ring at the upper end of the rotating ring 7 has a downwardly extending upper abutment edge 73, which abuts against the upper part of the inner support ring 8 from top to bottom. The inner surface at the lower end of the rotating ring 7 is provided with a plurality of lower hooks 72, which are adapted to and connected to the fixed ring 10. This structure realizes the connection method of the rotating ring 7, the inner support ring 8, and the fixed ring 10, and enables the rotating ring 7 to rotate 360° relative to the fixed ring 10.

[0033] In this embodiment, the outer shell 6 covers the outside of the rotating ring 7. A plurality of upper hooks 75 are evenly distributed on the upper abutment edge 73 of the rotating ring 7. The outer shell 6 has a plurality of notches 62, and fastening bodies 65 are provided at the notches 62. The upper hooks 75 of the rotating ring 7 are fastened to the fastening bodies 65. Figure 12 As shown, the bottom outer surface of the rotating ring 7 is provided with a limiting protrusion 74, and the corresponding location on the outer shell 6 is provided with a limiting notch 64. The limiting protrusion 74 is located at the limiting notch 64 and extends beyond the limiting notch 64. This structure enables the upper end of the rotating ring 7 to be fixedly connected to the outer shell 6. When the outer shell 6 is held and rotated, the internal rotating ring 7 can be driven to rotate.

[0034] In this embodiment, the outer surface of the outer shell 6 is also provided with a concave-convex gripping area 63. This structure is designed to make the outer shell 6 easier to grip and rotate when it is rotated.

[0035] In this embodiment, the module component includes a module box 1, a battery 12, a PCB module 13, and a top cover 2. The top cover 2 is fastened to the module box 1 to form a box that accommodates the battery 12 and the PCB module 13.

[0036] In this embodiment, the battery 12 is disposed inside the module box 1, and the PCB module 13 is disposed above the battery 12. The battery 12 and the PCB module 13 are connected by wires. The PCB module 13 is provided with a sensing part that extends towards the bezel. Below the sensing part is the dry water meter counting mechanism. The sensing part is directly opposite the sensing metal coil 93 of the dry water meter counting mechanism. The rotation of the sensing metal coil 93 is sensed by the PCB module 13, and data is recorded.

[0037] In this embodiment, a leak-proof groove 21 is provided at the connection between the module box 1 and the top cover 2. The leak-proof groove 21 is designed to prevent external moisture from entering the box. The space between the module box 1 and the top cover 2 is filled with sealant. The PCB module 13 is equipped with an antenna and an indicator light. An indicator light cover 11 is provided above the indicator light. The PCB module 13, battery 12, and indicator light cover 11 are all immersed in the sealant. The sealant can be made of resin. The indicator light cover 11 covers the indicator light. The PCB module 13, battery 12, and indicator light cover 11 are all immersed in the sealant, which effectively prevents moisture from contacting these components, achieving a good moisture-proof function.

[0038] In this embodiment, the module box 1 is provided with a fixed connection part 101 extending to the upper surface of the outer shell 6 of the bezel portion. This connection part is fixedly connected to the upper surface of the outer shell 6 by a module box connecting screw 14, thus realizing the fixed connection between the bezel portion and the module assembly. When the outer shell 6 rotates, it drives the module assembly to rotate together. The bezel portion also includes a protective cover 3. The top of the outer shell 6 is provided with a protective cover connection part 61. The protective cover 3 is hinged to the protective cover connection part 61 and can rotate. When the protective cover 3 is closed, it covers the fixed connection part 101 of the module box 1, and the protective cover 3 plays a protective role for the dial 91.

[0039] In the description of this utility model, it should be understood that the terms "external", "above", "from top to bottom", "bottom", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In this utility model, unless otherwise explicitly specified and limited, the term "connection" and other such terms should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dry water meter with easy reading, characterized in that The device includes a bezel and a module assembly. The bezel is used to fix the counting mechanism of the dry water meter. The bezel includes a water meter base (5), a fixing ring (10), a rotating ring (7), and a housing (6). The fixing ring (10) is located on the water meter base (5). The rotating ring (7) is adapted to the fixing ring (10) and rotates relative to the fixing ring (10). The housing (6) is located outside the rotating ring (7). The module assembly is connected to the housing (6). A PCB module (13) is installed inside the module assembly.

2. A dry meter according to claim 1, wherein An inner support ring (8) is provided above the fixed ring (10). The inner support ring (8) is designed to be through. The bottom of the inner support ring (8) abuts against the fixed ring (10). A metal inner cover (9) is provided in the middle of the inner support ring (8). The inside of the metal inner cover (9) is a cavity that accommodates the dry water meter counting mechanism. A dial (91) is provided above the cavity. A dial cover (92) is provided above the dial (91). An induction metal coil (93) is provided on the dial (91).

3. A dry-type water meter with convenient reading according to claim 2, characterized in that... The inner support ring (8) is provided with a rotating ring (7) on its outside. The rotating ring (7) is designed to be through. The inner ring at the upper end of the rotating ring (7) is provided with an upper abutment edge (73) extending downward. The upper abutment edge (73) abuts against the upper part of the inner support ring (8) from top to bottom. The inner surface at the lower end of the rotating ring (7) is provided with a plurality of lower hooks (72). The lower hooks (72) are adapted to and connected to the fixed ring (10).

4. A dry-type water meter with convenient reading according to claim 3, characterized in that... The outer shell (6) covers the outside of the rotating ring (7). Several upper hooks (75) are evenly distributed on the upper abutting edge (73) of the rotating ring (7). Several notches (62) are provided on the outer shell (6). Fastening bodies (65) are provided at the notches (62). The upper hooks (75) of the rotating ring (7) are fastened to the fastening bodies (65). The bottom outer surface of the rotating ring (7) is provided with a limiting protrusion (74). A limiting notch (64) is provided on the outer shell (6) at the corresponding position. The limiting protrusion (74) is located at the limiting notch (64) and extends to the outside of the limiting notch (64).

5. A dry-type water meter with convenient reading according to any one of claims 1-4, characterized in that... The outer surface of the outer shell (6) is also provided with a concave-convex gripping area (63).

6. A dry-type water meter with convenient reading according to claim 1, characterized in that... The module assembly includes a module box (1), a battery (12), a PCB module (13), and a top cover (2). The top cover (2) is fastened to the module box (1) to form a box that accommodates the battery (12) and the PCB module (13).

7. A dry-type water meter with convenient reading according to claim 6, characterized in that... The battery (12) is located inside the module box (1), and the PCB module (13) is located above the battery (12). The battery (12) and the PCB module are connected by wires. The PCB module (13) is provided with a sensing part that extends towards the bezel. Below the sensing part is the dry water meter counting mechanism, and the sensing part is directly opposite the sensing metal coil (93) of the dry water meter counting mechanism.

8. A dry-type water meter with convenient reading according to claim 6, characterized in that... The connection between the module box (1) and the top cover (2) is provided with a leak-proof groove (21). The space between the module box (1) and the top cover (2) is filled with sealant. The PCB module (13) is provided with an antenna and an indicator light. An indicator light cover (11) is provided above the indicator light. The PCB module (13), the battery (12), and the indicator light cover (11) are all immersed in the sealant.

9. A dry-type water meter with convenient reading according to claim 6, characterized in that... The module box (1) is provided with a fixed connection part (101) extending to the upper surface of the outer shell (6) of the bezel portion. The connection part is fixedly connected to the upper surface of the outer shell (6) by a module box connecting screw (14). The bezel portion also includes a protective cover (3). The top of the outer shell (6) is provided with a protective cover connection part (61). The protective cover (3) is hinged to the protective cover connection part (61) and can rotate. When the protective cover (3) is closed, it covers the fixed connection part (101) of the module box (1).

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