High-precision non-magnetic copper-sealed dry-type single-flow water meter

Abstract

The utility model relates to a high-precision non-magnetic copper-sealed dry-type single-flow water meter, and aims to solve the problems of inconvenience in production and assembly and poorer anti-theft and anti-disassembly effects of a base meter of the conventional similar product, particularly inconvenience in overall assembly of a copper-sealed counter, poorer stability after assembly, low production cost and the like. And the anti-theft structure is easy to be damaged by people. A ring cover of the dry-type single-flow water meter is buckled and fixed on an anti-theft assembly at the top of a meter shell, and the dry-type single-flow water meter is characterized in that the anti-theft assembly comprises an anti-theft support and an anti-theft ring, the anti-theft support is open, after the anti-theft support is sleeved into the edge of the top of the meter shell, the anti-theft ring is tightly buckled on the anti-theft support, and the anti-theft ring, the anti-theft support and the meter shell are connected into a whole. The copper seal counter is sleeved with and limited to a cover opening in the top of the annular cover through a buckle, meanwhile, the bottom of the copper seal counter abuts against the top of the adjusting plate in a limiting mode, the buckle at the bottom of the annular cover is fastened to the outer diameter edge of the anti-theft support, and the copper seal counter is fixed in the annular cover; the housing of the copper-sealed counter is a copper-sealed cover housing.

Description

Technical Field

[0001] The utility model relates to a water meter, which is a high-precision non-magnetic copper-sealed dry-type single-flow water meter. Background Art

[0002] A water meter is an instrument used to measure water flow, mostly cumulative flow. It's generally classified into two types: volumetric and velocity meters. Meter specifications typically prioritize the intended flow rate and range, selecting the one that most closely matches the intended flow rate. Some meters are single-stream, or single-jet, meters, in which a single jet of water impacts a specific point on the edge of a rotating impeller, causing it to rotate. To facilitate data reading, existing water meters typically incorporate an IoT wireless remote transmission module. For example, Chinese patent application No. 201910857074.X, published on November 19, 2019, and titled "A Non-Magnetic Smart Water Meter Capable of Remote Automatic Meter Reading," is disclosed. Other single-jet dry-type water meters utilize a metering chamber containing an impeller within the meter housing. Water flows from the inlet and outlet, impacting a specific edge of the impeller. A magnet on the top of the impeller drives the impeller's rotation, achieving flow measurement. For example, Chinese patent application No. 201120215342.7, published on December 18, 2021, and titled "A High-Precision Single-Junction Dry-Type Water Meter," is disclosed. However, the base meters of these and similar products are difficult to manufacture and assemble. Once installed on-site, they lack effective anti-theft and anti-tampering features. In particular, the copper-sealed counter is difficult to assemble, resulting in poor stability after assembly, impacting metering accuracy, and making the anti-theft mechanism susceptible to tampering. Summary of the Invention

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a high-precision, non-magnetic, copper-sealed, dry-type, single-flow water meter in the art. This meter addresses the technical problems of existing similar products, such as the inconvenient production and assembly of the base meter, poor anti-theft and anti-tampering effectiveness, and, in particular, the inconvenient assembly of the copper-sealed counter, poor stability after assembly, which affects metering accuracy, and the vulnerability of the anti-theft structure to vandalism. This objective is achieved through the following technical solution.

[0004] A high-precision non-magnetic copper-sealed dry-type single-flow water meter, a ring cover or a meter cover of the ring cover of the dry-type single-flow water meter is provided with a signal box on one side, the ring cover is buckled and fixed to the anti-theft component on the top of the meter case, an impeller assembly is provided in the meter case, a copper-sealed counter is provided in the ring cover, a metering cavity with an impeller is provided in the meter case, the magnet of the impeller assembly and the magnet of the copper-sealed counter are matched with each other, and the central gear of the copper-sealed counter has a magnet; the key points of its structural design are that the anti-theft component includes an anti-theft bracket and an anti-theft ring, the anti-theft bracket is open, after the anti-theft bracket is inserted into the top edge of the meter case, it is fastened to the anti-theft bracket with the anti-theft ring, the anti-theft ring, the anti-theft bracket and the meter case are connected as one, the copper-sealed counter is inserted into and limited to the cover opening at the top of the ring cover with a buckle, at the same time, the bottom of the copper-sealed counter is offset against the top limit of the adjustment plate, the buckle at the bottom of the ring cover is fastened to the outer diameter edge of the anti-theft bracket, and the copper-sealed counter is fixed in the ring cover. The copper-sealed counter is a vandal-proof sealed counter. Its housing is not limited to the copper-sealed cover of the copper-sealed counter below, and a counter with other plastic housings may also be used.

[0005] The internal thread at the top shell opening of the watch case is connected to the external thread of the threaded pressing block. The inner diameter of the top shell opening of the watch case below the threaded pressing block is provided with an adjustment plate and a sealing ring at the connection. The boss in the middle of the adjustment plate extends into the anti-magnetic ring raised in the middle of the threaded pressing block. The height of the boss of the adjustment plate is lower than the height of the anti-magnetic ring of the threaded pressing block, and the height of the anti-magnetic ring of the threaded pressing block is lower than the height of the top seat opening of the anti-theft bracket; while the bottom of the copper-sealed counter is against the top seat opening of the anti-theft bracket, the bottom protrusion of the copper-sealed counter is against the top groove of the boss of the adjustment plate through the anti-magnetic ring of the threaded pressing block.

[0006] The threaded pressing block is limited above the adjustment plate by thread tightening. At the same time, the anti-theft bracket shrinks inward and bulges upward at the bottom chamfer of the lower inner diameter, and the threaded pressing block is limited at the bottom chamfer of the inner diameter of the anti-theft bracket.

[0007] The cover opening at the top of the ring cover is expanded inward and provided with an oblique inner wall. The inner diameter below the cover opening at the top of the ring cover is provided with a buckle whose diameter is smaller than that of the top cover opening. The copper-sealed counter is inserted into and limited at the buckle with the slot. At the same time, the copper-sealed counter is inserted into and limited at the cover opening at the top of the ring cover. The buckle is integrally formed with the ring cover and provided with a hollow hole. The outer diameter notch of the buckle is inserted into the corresponding notch on the inner wall of the ring cover and is rotatably fixed in the ring cover.

[0008] The housing of the copper-sealed counter is a copper-sealed cover shell, and a watch glass is provided on the top frame opening of the sealing rubber ring at the top shell opening of the copper-sealed cover shell.

[0009] The utility model has a reasonable structural design, is easy to produce and assemble, has good stability and sealing after assembly, and can prevent theft and disassembly, that is, the anti-theft and anti-disassembly effect is good, especially the overall assembly of the copper-sealed counter is convenient and stable; it is suitable for use as a high-precision non-magnetic copper-sealed dry single-flow water meter, and is a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0011] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure at the base surface, with part A framed in the figure.

[0012] Figure 3 yes Figure 2 Magnified view of part A.

[0013] Serial number and name of the accompanying drawings: 1. Base meter, 2. Transmitter box, 3. Watch case, 4. Anti-theft bracket, 5. Anti-theft ring, 6. Ring cover, 601, Buckle, 7. Copper-sealed counter, 701, Sealing rubber ring, 8. Watch glass, 9. Copper-sealed cover, 10. Center gear, 11. Threaded pressure block, 1101, Anti-magnetic ring, 12. Adjustment plate, 13. Impeller assembly, 14. Filter. Implementation Method

[0014] Now, in conjunction with the accompanying drawings, the structure and use of the utility model are further described. Figure 1-Figure 3 As shown, a signal box 2 is provided on one side of the ring cover 6 of the dry single-flow water meter, and the ring cover is fastened to the anti-theft component on the top of the watch case 3. An impeller assembly 13 is provided in the watch case, and a copper-sealed counter 7 is provided in the ring cover. There is a metering cavity with an impeller in the watch case, and the magnet of the impeller assembly is matched with the magnet of the copper-sealed counter. The central gear 10 of the copper-sealed counter has a magnet; the above-mentioned anti-theft component includes an anti-theft bracket 4 and an anti-theft ring 5. The anti-theft bracket is open. After the anti-theft bracket is inserted into the top edge of the watch case, it is fastened to the anti-theft bracket with the anti-theft ring. The anti-theft ring, anti-theft bracket and watch case are connected as one. The copper-sealed counter is inserted into the cover opening at the top of the ring cover with a buckle 601 and limited to the cover opening at the same time. The bottom of the copper-sealed counter is limited to the top of the adjustment plate 12, and the buckle at the bottom of the ring cover is fastened to the outer diameter edge of the anti-theft bracket, and the copper-sealed counter is fixed in the ring cover.

[0015] Its specific structure is as follows: the internal thread at the top shell opening of the above-mentioned watch case is connected to the external thread of the threaded pressure block 11, and the inner diameter of the top shell opening of the watch case below the threaded pressure block is provided with an adjustment plate 12 and a sealing ring at the connection. The boss in the middle of the adjustment plate extends into the anti-magnetic ring 1101 raised in the middle of the threaded pressure block. The height of the boss of the adjustment plate is lower than the height of the anti-magnetic ring of the threaded pressure block, and the height of the anti-magnetic ring of the threaded pressure block is lower than the height of the top seat opening of the anti-theft bracket. At the same time, the bottom of the copper-sealed counter is against the top seat opening of the anti-theft bracket, and the bottom protrusion of the copper-sealed counter is against the top groove of the boss of the adjustment plate through the anti-magnetic ring of the threaded pressure block. At the same time, the above-mentioned threaded pressure block is limited to the top of the adjustment plate by the thread tightening, and the anti-theft bracket shrinks inward and protrudes upward at the bottom chamfer of the lower inner diameter, and the threaded pressure block is limited to the bottom chamfer of the inner diameter of the anti-theft bracket. The opening at the top of the ring shroud is enlarged inward and features an oblique inner wall. A clip with a smaller diameter than the top opening is located below the opening. The copper-sealed counter is inserted into and restrained within the clip with the slot. The clip is integrally formed with the ring shroud and features a hollow hole. The clip's outer diameter notch fits into a corresponding notch on the inner wall of the ring shroud and is rotatably secured within the ring shroud. The copper-sealed counter's housing is a copper-sealed housing 9. A watch glass 8 is located above the top bracket of the sealing rubber ring 701 at the top of the housing opening. A filter screen 14 is located within the opening on one side of the water inlet of the housing.

[0016] This dry-type single-flow water meter boasts the following features: IP68 waterproofing, capable of measuring water at a depth of 1 meter; a theft-resistant design that prevents opening unless the outer blue anti-theft ring is broken; a built-in copper-sealed counter protects the gears from damage; magnetic resistance, including immunity to magnets, is unaffected by wireless communications; and wireless communication supports various wireless communication technologies, including wM-Bus, M-Bus, LoraWAN, and Sigfox. This dry-type single-flow water meter offers the advantages of high precision and low cost, reducing component count and costs while optimizing component structure and design to improve measurement accuracy.

Claims

1. A high-precision non-magnetic copper-sealed dry-type single-flow water meter, wherein the ring cover (6) of the dry-type single-flow water meter is fastened to an anti-theft component fixed to the top of the meter case (3), an impeller assembly (13) is provided in the meter case, a copper-sealed counter (7) is provided in the ring cover, a metering cavity with an impeller is provided in the meter case, the magnet of the impeller assembly and the magnet of the copper-sealed counter are matched with each other, and the central gear (10) of the copper-sealed counter has a magnet; characterized in that The anti-theft component comprises an anti-theft bracket (4) and an anti-theft ring (5). The anti-theft bracket is in an open shape. After the anti-theft bracket is inserted into the top edge of the watch case (3), the anti-theft ring is fastened to the anti-theft bracket. The anti-theft ring, the anti-theft bracket and the watch case are connected as a whole. The copper-sealed counter (7) is inserted into the cover opening at the top of the ring cover (6) with a buckle (601) and is limited. At the same time, the bottom of the copper-sealed counter is abutted against the top limit of the adjustment plate (12). The buckle at the bottom of the ring cover is fastened to the outer diameter edge of the anti-theft bracket, and the copper-sealed counter is fixed in the ring cover.

2. The high-precision non-magnetic copper-sealed dry single-flow water meter according to claim 1 is characterized in that The inner thread at the top shell opening of the watch case (3) is connected to the outer thread of the threaded pressing block (11); the inner diameter of the top shell opening of the watch case below the threaded pressing block is provided with an adjustment plate (12) and a sealing ring at the connection; the boss in the middle of the adjustment plate extends into the anti-magnetic ring (1101) raised in the middle of the threaded pressing block; the height of the boss of the adjustment plate is lower than the height of the anti-magnetic ring of the threaded pressing block, and the height of the anti-magnetic ring of the threaded pressing block is lower than the height of the top seat opening of the anti-theft bracket (4); while the bottom of the copper-sealed counter (7) is against the top seat opening of the anti-theft bracket, the bottom protrusion of the copper-sealed counter is against the top groove of the boss of the adjustment plate through the anti-magnetic ring of the threaded pressing block.

3. The high-precision non-magnetic copper-sealed dry-type single-flow water meter according to claim 2 is characterized in that The threaded pressing block (11) is positioned above the adjustment plate (12) by tightening the thread. At the same time, the anti-theft bracket (4) is narrowed inwardly and bulges upward at the bottom chamfer of the lower inner diameter. The threaded pressing block is positioned at the bottom chamfer of the inner diameter of the anti-theft bracket.

4. The high-precision non-magnetic copper-sealed dry-type single-flow water meter according to claim 1 is characterized in that The cover opening at the top of the ring cover (6) is expanded inwardly and provided with an oblique inner wall. The inner diameter below the cover opening at the top of the ring cover is provided with a buckle (601) smaller than the diameter of the top cover opening. The copper seal counter (7) is inserted into and limited by the buckle with the slot. At the same time, the copper seal counter is inserted into and limited by the cover opening at the top of the ring cover. The buckle is integrally formed with the ring cover and provided with a hollow hole. The outer diameter notch of the buckle is inserted into the corresponding notch on the inner wall of the ring cover and is rotatably fixed in the ring cover.

5. The high-precision non-magnetic copper-sealed dry-type single-flow water meter according to claim 1 is characterized in that The housing of the copper-sealed counter (7) is a copper-sealed cover shell (9), and a watch glass (8) is provided at the top frame opening of a sealing rubber ring (701) at the top shell opening of the copper-sealed cover shell.

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