An electromechanically decoupled dry counter

Abstract

The present application relates to water meter technical field, especially a kind of mechanical-electrical separation dry type counter, comprising: water meter shell, the outer wall convex end of water meter shell is provided with mounting plate by bolt fixing, water meter shell and the outer wall of mounting plate are provided with protective shell, valve control assembly, is located at the outer wall of one end of water meter shell.Through gear transmission drive reading needle display flow, the magnetic steel of synchronous signalling pointer and inductive sheet are used for non-contact collection signal for sealed cavity detection electronic equipment, realize mechanical-electrical separation;Sealing tube and detection shell form sealed cavity to isolate water vapor, reduce friction, valve control assembly realizes on-off control, multiple sealing and quick connector are convenient to maintain installation, with mechanical metering reliability and electronic remote transmission function.

Description

Technical Field

[0001] This invention belongs to the field of water meter technology, specifically a dry-type counter with electromechanical separation. Background Technology

[0002] As a core component for flow measurement and data display, the counter's performance directly affects the water meter's measurement accuracy and lifespan. Existing water meter counters are mainly divided into two categories: purely mechanical and electronic. Purely mechanical counters use gear sets to drive pointers or digit wheels to display cumulative flow, offering advantages such as no power supply required and high reliability. However, they cannot achieve remote data transmission and real-time monitoring, making them insufficient to meet the development needs of smart water management systems. To endow water meters with remote communication capabilities, some existing solutions directly integrate electronic data acquisition modules within the counter, acquiring signals through contact switches or Hall effect sensors that directly contact or are close to rotating components. However, this integrated design has several drawbacks: with electronic components and mechanical transmission parts in the same cavity, the moisture inside the water meter easily leads to short circuits or corrosion of the circuit board, especially in harsh environments where water meters are installed in outdoor pipe wells, resulting in a significantly higher failure rate; contact switches suffer from mechanical friction and oxidation, leading to poor contact and decreased signal acquisition reliability after long-term use; electromagnetic interference generated by electronic components may affect the stability of mechanical counting, and static electricity generated by gear rotation may also damage electronic devices. Furthermore, some solutions completely encapsulate the electronic module within the counter's gear cavity. If the electronic component fails, the entire counter becomes unusable and cannot be replaced individually, resulting in high maintenance costs. For data acquisition methods using reed switches or Hall effect sensors close to rotating magnets, the gap between the magnet and the sensor changes due to water pressure fluctuations or mechanical vibrations, easily causing missed or incorrect signal acquisition. Simultaneously, existing counters lack effective friction-reducing lubrication designs during gear transmission; long-term operation leads to gear wear, causing indication deviations and affecting measurement accuracy. Therefore, there is an urgent need for a water meter counter that enables independent mechanical measurement and electronic data acquisition, sealed isolation of electronic components, and contactless signal acquisition without wear. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing water meter counters, such as the susceptibility of electronic components to moisture damage, mutual interference between mechanical measurement and electronic data acquisition, high wear and tear on signal acquisition methods, and high transmission resistance. This invention provides a dry-type counter with electromechanical separation. By separating the purely mechanical gear-driven counting structure from the electronic detection equipment into separate cavities, the mechanical part drives the reading needle to display the cumulative flow. Simultaneously, the magnet and induction plate of the synchronous signal pointer generate a changing signal outside the sealed cavity. The detection electronic equipment inside the sealed cavity collects flow data in real time in a non-contact manner, truly achieving electromechanical separation. This ensures the accuracy of mechanical measurement while providing electronic remote transmission capabilities. A completely sealed cavity is formed by the sealing cylinder and the detection shell, and the magnetic detection or induction plate detection electronic equipment is installed within this sealed cavity, effectively isolating it from external external interference. Moisture, dust, and humid air prevent electronic components from malfunctioning due to moisture, significantly improving the long-term reliability and service life of electronic detection equipment in outdoor humid environments. The non-contact signal acquisition method eliminates mechanical contact between the synchronous signaling pointer and the detection electronics, completely eliminating the friction, wear, and oxidation failure problems inherent in traditional contact-based acquisition. This ensures long-term stability and accuracy of signal acquisition, reduces maintenance frequency, and significantly reduces transmission friction resistance through step-by-step gear meshing and drag-reducing hole lubrication design. This ensures smooth transmission from impeller rotation to reading needle indication. Each reading needle corresponds to a different metering level, forming a complete reading for easy on-site reading. Simultaneously, integrated valve control components enable remote or manual on / off control, meeting the comprehensive management needs of smart water systems.

[0004] The technical solution adopted in this invention is as follows: An electromechanical separation dry counter, comprising:

[0005] Water meter housing;

[0006] The outer wall of the water meter housing is fixed with a mounting plate by bolts;

[0007] The outer wall of the water meter housing and the mounting plate is fitted with a protective shell.

[0008] The valve control assembly is located on the outer wall of one end of the water meter housing;

[0009] A counting component is located on the inner wall of a protective shell. The counting component includes a storage shell, a reading shell, a transparent shell, a transmission component, a fifth gear, and a synchronous signaling pointer. The storage shell and the reading shell are both embedded in the inner wall of the protective shell. The transmission component is located at the bottom of the inner wall of the storage shell. The top end of the fifth gear penetrates the reading shell and is inserted into the inner wall of the synchronous signaling pointer. The bottom end of the fifth gear is inserted into the bottom of the inner wall of the storage shell. The transparent shell is fitted onto the outer wall of the reading shell, and its bottom edge is attached to the outer wall of the storage shell. The bottom sides of the outer wall of the synchronous signaling pointer have openings for mounting magnets and sensing plates.

[0010] A sealing assembly is disposed on the inner wall of the protective shell, wherein: the sealing assembly includes an inner shell, a sealing cylinder, a detection shell, and a rotating groove; the inner shell is embedded in the inner wall of the protective shell and sleeved on the outer wall of the mounting plate; the rotating groove is opened at the bottom of the outer wall of the mounting plate; the top end of the sealing cylinder is spirally embedded in the inner wall of the rotating groove; the detection shell is fixedly disposed at the top of the outer wall of the mounting plate; and the sealing cylinder and the detection shell form a cavity.

[0011] Furthermore, the valve control assembly includes a limiting frame, a valve control ball, a sealing ring, a drive groove, a sealing ring, a limiting ring, a drag-reducing sleeve, and a drive shaft.

[0012] Furthermore, the limiting frame and the sealing ring are embedded in one end of the inner wall of the water meter housing, the valve control ball is rotatably embedded in one end of the inner wall of the water meter housing, the outer wall of the valve control ball is in contact with the outer wall side of the limiting frame and the sealing ring that are close to each other, the drive groove is opened at the top of the outer wall of the valve control ball, the drag-reducing sleeve is embedded in the inner wall of the limiting ring, the limiting ring is fixed to the bottom of the outer wall of the mounting plate by bolts, the drive shaft is rotatably embedded in the inner wall of the drag-reducing sleeve, one end of the drive shaft passes through the opening in the outer wall of the mounting plate, and the other end of the drive shaft is inserted into the inner wall of the drive groove.

[0013] Furthermore, the top protruding end of the outer wall of the mounting plate has a groove, the groove of the mounting plate is embedded with an equipment plate, and the groove of the mounting plate is embedded with a sealing shell near the top.

[0014] Furthermore, multiple drag-reducing holes are provided on the outer walls of the storage shell and the reading shell that are close to each other. An installation hole is provided on the bottom of the inner wall of the storage shell. Mounting bolts are fixedly provided on both sides of the bottom of the inner wall of the storage shell, and the top of the mounting bolts is inserted into the bottom of the outer wall of the reading shell.

[0015] Furthermore, the transmission assembly includes an angle shaft, a first gear, a second gear, a third gear, a fourth gear, a sixth gear, a seventh gear, an eighth gear, a ninth gear, and a tenth gear. The two ends of the first gear, the second gear, the third gear, the fourth gear, the sixth gear, the seventh gear, the eighth gear, the ninth gear, and the tenth gear are respectively rotatably embedded in the space formed by the storage shell and the reading shell through drag-reducing holes.

[0016] Furthermore, the angle shaft is rotatably inserted into the inner wall of the mounting hole. The top end of the angle shaft has a toothed groove that meshes with the first gear for transmission. The first gear meshes with the second gear, the second gear meshes with the third gear, the third gear meshes with the sixth gear, the sixth gear meshes with the seventh gear, the seventh gear meshes with the eighth gear, the eighth gear meshes with the ninth gear, the ninth gear meshes with the tenth gear, the fourth gear meshes with the sixth gear, and the fourth gear meshes with the fifth gear.

[0017] Furthermore, an indicator needle, a first reading needle, a second reading needle, a third reading needle, and a fourth reading needle are rotatably inserted into the top of the outer wall of the reading shell, and the bottom opening of the indicator needle is sleeved on the top outer wall of the angle axis.

[0018] Furthermore, the top end of the second gear is inserted into the groove on the bottom inner wall of the first reading needle, the top end of the sixth gear is inserted into the groove on the bottom inner wall of the second reading needle, the top end of the eighth gear is inserted into the groove on the bottom inner wall of the third reading needle, and the top end of the tenth gear is inserted into the groove on the bottom inner wall of the fourth reading needle.

[0019] Furthermore, a reading hole is provided on the top of the outer wall of the reading shell, a rotating plate is rotatably inserted at one edge of the outer wall of the protective shell, a protective plate is embedded in the opening at the center of the other side of the outer wall of the protective shell, the opening of the rotating groove extends to the inner wall of the inner shell, a quick connector is embedded at one end of the water meter housing, and the end of the quick connector near the water meter housing is attached to the outer wall of the sealing ring.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0021] (1) In this invention, electromechanical separation counting is realized. The reading needle is driven by pure mechanical gear transmission to display the cumulative flow. At the same time, the changing magnetic field or induction signal is generated by the synchronous signal pointer and the embedded magnet and induction plate, which is used by the magnetic detection electronic device or induction plate detection electronic device in the sealed cavity to collect data in real time in a non-contact manner. This not only retains the accuracy and stability of mechanical measurement, but also realizes the electronic remote transmission of flow data, truly achieving the separation of mechanical counting and electronic acquisition.

[0022] (2) In this invention, a completely sealed cavity is formed by the sealing cylinder and the detection shell, and the magnetic detection electronic device or the induction plate detection electronic device is installed inside the sealed cavity. This effectively isolates external water vapor, dust and humid air, avoids the electronic components from being directly exposed to the humid environment inside the water meter, significantly improves the service life and long-term reliability of the electronic detection device, and ensures that the water meter can still work stably in harsh outdoor environments.

[0023] (3) In this invention, a non-contact detection method is adopted. There is no mechanical contact between the magnet and the sensing plate on the synchronous signal pointer and the detection electronic device in the sealed cavity, which avoids friction loss and contact oxidation problems. At the same time, it eliminates the risk of signal failure caused by wear in the traditional contact signal acquisition method, and ensures the signal stability and acquisition accuracy for long-term use.

[0024] (4) In this invention, the high-speed rotation of the impeller is smoothly converted into the low-speed rotation of each reading needle through the step-by-step meshing transmission of each gear. With the lubricating grease filled in the drag reduction hole, the frictional resistance of the gear rotation is greatly reduced, ensuring transmission efficiency and long-term operation stability. At the same time, each reading needle corresponds to a different measurement level, which together form a complete cumulative flow reading, which is convenient for direct reading on site.

[0025] (5) The present invention integrates a valve control component, which drives the drive shaft and valve control ball to rotate through an external drive device, thereby realizing remote or manual on / off control of the water circuit. The sealing ring on the sealing ring ensures the sealing performance when the valve is closed. No additional independent valve needs to be installed, which simplifies the water meter installation structure and space occupation.

[0026] (6) In this invention, the internal components and electronic equipment of the counter are fully protected by multiple sealing structures such as protective shell, transparent shell, internal shell and sealing shell. The rotating plate and quick connector facilitate maintenance and repair and quick pipe installation. The protective plate allows the internal status to be observed without opening the outer shell, which improves the overall convenience of water meter installation, maintenance and use. Attached Figure Description

[0027] Figure 1 This is a perspective view of the present invention;

[0028] Figure 2 This is a perspective view of the internal shell of the present invention;

[0029] Figure 3 This is a perspective view of the quick connector of the present invention;

[0030] Figure 4 This is an enlarged schematic diagram of invention A;

[0031] Figure 5 This is a perspective view of the mounting plate of the present invention;

[0032] Figure 6 This is a perspective view of the detection shell of the present invention;

[0033] Figure 7 This is a perspective view of the sealing shell of the present invention;

[0034] Figure 8 This is a schematic diagram of the rotating groove of the present invention;

[0035] Figure 9 This is a perspective view of the storage shell of the present invention;

[0036] Figure 10 This is a perspective view of the reading shell of the present invention;

[0037] Figure 11 This is a perspective view of the synchronous signaling pointer of the present invention.

[0038] Markings in the diagram: 1. Water meter housing; 2. Mounting plate; 3. Protective shell; 4. Limiting frame; 5. Valve control ball; 6. Sealing ring; 7. Storage shell; 8. Reading shell; 9. Limiting ring; 10. Drag-reducing sleeve; 11. Drive shaft; 12. Equipment plate; 13. Sealing shell; 14. Angle shaft; 15. First gear; 16. Second gear; 17. Third gear; 18. Fourth gear; 19. Fifth gear; 20. Sixth gear; 21. Seventh gear; 22. Eighth gear; 23. Ninth gear; 24. 10. Tenth gear; 25. Indicator needle; 26. First reading needle; 27. Second reading needle; 28. Third reading needle; 29. ​​Fourth reading needle; 30. Synchronous signal pointer; 101. Quick connector; 201. Internal housing; 202. Sealing cylinder; 203. Detection housing; 204. Rotating groove; 301. Rotating plate; 302. Protective plate; 501. Drive groove; 601. Sealing ring; 701. Mounting hole; 702. Mounting bolt; 703. Drag reduction hole; 801. Reading hole; 802. Transparent housing. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0040] Example 1, refer to Figure 1-11 A dry-type counter with electromechanical separation, comprising:

[0041] Water meter housing 1;

[0042] The outer wall of the water meter housing 1 is fixed with a mounting plate 2 by bolts;

[0043] The outer walls of the water meter housing 1 and the mounting plate 2 are fitted with protective shells 3.

[0044] The valve control assembly is located on the outer wall of one end of the water meter housing 1;

[0045] A counting component is located on the inner wall of the protective shell 3. The counting component includes a storage shell 7, a reading shell 8, a transparent shell 802, a transmission component, a fifth gear 19, and a synchronous signal pointer 30. The storage shell 7 and the reading shell 8 are both embedded in the inner wall of the protective shell 3. The transmission component is located at the bottom of the inner wall of the storage shell 7. The top end of the fifth gear 19 penetrates the reading shell 8 and is inserted into the inner wall of the synchronous signal pointer 30. The bottom end of the fifth gear 19 is inserted into the bottom of the inner wall of the storage shell 7. The transparent shell 802 is fitted onto the outer wall of the reading shell 8. The bottom edge of the transparent shell 802 is attached to the outer wall of the storage shell 7. Magnets and sensing plates are embedded in the openings on both sides of the bottom of the outer wall of the synchronous signal pointer 30.

[0046] A sealing assembly is disposed on the inner wall of the protective shell 3, wherein: the sealing assembly includes an inner shell 201, a sealing cylinder 202, a detection shell 203, and a rotating groove 204. The inner shell 201 is embedded in the inner wall of the protective shell 3 and sleeved on the outer wall of the mounting plate 2. The rotating groove 204 is opened at the bottom of the outer wall of the mounting plate 2. The top end of the sealing cylinder 202 is spirally embedded in the inner wall of the rotating groove 204. The detection shell 203 is fixedly disposed at the top of the outer wall of the mounting plate 2. The sealing cylinder 202 and the detection shell 203 form a sealed cavity. A magnetic detection electronic device or an induction plate detection electronic device is installed inside the sealed cavity for recording the number of rotations of the synchronous signal pointer 30.

[0047] In a specific embodiment of the present invention, the water meter housing 1 is first installed on the water supply pipeline. A quick connector 101 is embedded at one end of the water meter housing 1. The end of the quick connector 101 near the water meter housing 1 is attached to the outer wall of the sealing ring 6 for quick connection to the upstream pipeline. The mounting plate 2 is fixed to the protruding end of the outer wall of the water meter housing 1 with bolts. Then, the protective shell 3 is fitted onto the outer walls of the water meter housing 1 and the mounting plate 2 to form an overall protection. The valve control assembly is located on the outer wall of one end of the water meter housing 1 for controlling the flow of water. The counting component is installed on the inner wall of the protective shell 3. Specifically, the storage shell 7 and the reading shell 8 are both embedded in the inner wall of the protective shell 3. Multiple drag-reducing holes 703 are opened on the outer walls of the storage shell 7 and the reading shell 8 that are close to each other. The bottom of the inner wall of the storage shell 7 is provided with a mounting hole 701. Mounting bolts 702 are fixedly installed on both sides of the bottom of the inner wall of the storage shell 7. The top of the mounting bolts 702 are inserted into the bottom of the outer wall of the reading shell 8 to achieve precise alignment and fixation of the storage shell 7 and the reading shell 8. The transmission component is located at the bottom of the inner wall of the storage shell 7 and includes an angle shaft 14, a first gear 15, a second gear 16, a third gear 17, a fourth gear 18, a sixth gear 20, a seventh gear 21, an eighth gear 22, a ninth gear 23, and a tenth gear 24. Angle shaft 14 is rotatably inserted into the inner wall of mounting hole 701. The top end of angle shaft 14 is connected to the impeller shaft inside water meter housing 1. A toothed groove is formed at the top end of angle shaft 14, meshing with the first gear 15. The first gear 15 meshes with the second gear 16, the second gear 16 meshes with the third gear 17, the third gear 17 meshes with the sixth gear 20, the sixth gear 20 meshes with the seventh gear 21, the seventh gear 21 meshes with the eighth gear 22, the eighth gear 22 meshes with the ninth gear 23, the ninth gear 23 meshes with the tenth gear 24, the fourth gear 18 meshes with the sixth gear 20, and the fourth gear 18 meshes with the fifth gear 19. Both ends of each gear are rotatably embedded in the space formed by housing housing 7 and reading housing 8 through drag-reducing holes 703. Lubricating grease can be filled into the drag-reducing holes 703 to reduce the frictional resistance of the gear rotation. The top of the outer wall of the reading housing 8 is rotatably fitted with an indicator needle 25, a first reading needle 26, a second reading needle 27, a third reading needle 28, and a fourth reading needle 29. The bottom opening of the indicator needle 25 is fitted onto the top outer wall of the angle shaft 14 to indicate the instantaneous flow rate. The top of the second gear 16 is inserted into the groove on the bottom inner wall of the first reading needle 26, the top of the sixth gear 20 is inserted into the groove on the bottom inner wall of the second reading needle 27, the top of the eighth gear 22 is inserted into the groove on the bottom inner wall of the third reading needle 28, and the top of the tenth gear 24 is inserted into the groove on the bottom inner wall of the fourth reading needle 29. Each reading needle corresponds to a different measurement level.The top end of the fifth gear 19 penetrates the reading shell 8 and is inserted into the inner wall of the synchronous signal pointer 30. The bottom end of the fifth gear 19 is inserted into the bottom of the inner wall of the storage shell 7. Magnets and sensing plates are embedded in the openings on both sides of the bottom of the outer wall of the synchronous signal pointer 30. The transparent shell 802 is fitted onto the outer wall of the reading shell 8, and the bottom edge of the transparent shell 802 is attached to the outer wall of the storage shell 7 to seal and protect the reading area, while also facilitating user observation of the reading. In the sealing assembly, the inner shell 201 is embedded into the inner wall of the protective shell 3 and fitted onto the outer wall of the mounting plate 2. A rotating groove 204 is opened at the bottom of the outer wall of the mounting plate 2. The top end of the sealing cylinder 202 is spirally embedded into the inner wall of the rotating groove 204. The detection shell 203 is fixedly set at the top of the outer wall of the mounting plate 2. The sealing cylinder 202 and the detection shell 203 form a sealed cavity, and a magnetic detection electronic device or a sensing plate detection electronic device is installed inside the sealed cavity. When the synchronous signaling pointer 30 rotates, the magnet and sensing element embedded at its bottom generate a changing magnetic field or induction signal. The magnetic detection electronic device or sensing element detection electronic device inside the sealed cavity detects and records the number of rotations and rotation angle of the synchronous signaling pointer 30 in real time in a non-contact manner, thereby generating a corresponding flow pulse signal for external acquisition terminals to read or transmit remotely. The sealed structure of the sealed cavity effectively protects the internal electronic equipment from external moisture and dust corrosion, ensuring long-term reliable operation. When water flows through the water meter housing 1, it drives the internal impeller to rotate. The impeller shaft drives the angle shaft 14 to rotate. The angle shaft 14 drives each reading needle to rotate according to the set transmission ratio through the meshing of gears at each stage, and at the same time drives the synchronous signaling pointer 30 to rotate. The detection electronic device inside the sealed cavity records the rotation data of the synchronous signaling pointer 30 in real time, realizing the dual functions of mechanical display and electronic remote transmission of flow. The valve control component can control the flow of water according to external commands.

[0048] Specifically, the valve control assembly includes a limiting frame 4, a valve control ball 5, a sealing ring 6, a drive groove 501, a sealing ring 601, a limiting ring 9, a drag-reducing sleeve 10, and a drive shaft 11.

[0049] In a specific embodiment of the present invention, the limiting frame 4 and the sealing ring 6 are embedded in one end of the inner wall of the water meter housing 1, the valve control ball 5 is rotatably embedded in one end of the inner wall of the water meter housing 1, and the outer wall of the valve control ball 5 is in contact with the outer wall side of the limiting frame 4 and the sealing ring 6 that are close to each other. The drive groove 501 is opened at the top of the outer wall of the valve control ball 5, the drag-reducing sleeve 10 is embedded in the inner wall of the limiting ring 9, the limiting ring 9 is fixed to the bottom of the outer wall of the mounting plate 2 by bolts, and the drive shaft 11 is rotatably embedded in the inner wall of the drag-reducing sleeve 10. One end of the drive shaft 11 passes through the opening in the outer wall of the mounting plate 2, and the other end of the drive shaft 11 is inserted into the inner wall of the drive groove 501. The drive shaft 11 rotates under the action of an external drive device, driving the valve control ball 5 to rotate, thereby opening or closing the water circuit. The outer wall of the sealing ring 6 is embedded with a sealing ring 601 to ensure the sealing between the valve control ball 5 and the sealing ring 6.

[0050] Specifically, the top protruding end of the outer wall of the mounting plate 2 is provided with a groove, the groove of the mounting plate 2 is embedded with an equipment plate 12, and the groove of the mounting plate 2 is embedded with a sealing shell 13 near the top.

[0051] In a specific embodiment of the present invention, the device board 12 is used to install external control circuits or communication modules, and the sealing shell 13 seals and protects the device board 12 to prevent moisture intrusion.

[0052] Specifically, multiple drag-reducing holes 703 are provided on the outer walls of the storage shell 7 and the reading shell 8 that are close to each other. An installation hole 701 is provided on the bottom of the inner wall of the storage shell 7. Mounting bolts 702 are fixedly provided on both sides of the bottom of the inner wall of the storage shell 7, and the top of the mounting bolts 702 are inserted into the bottom of the outer wall of the reading shell 8.

[0053] In a specific embodiment of the present invention, the drag-reducing hole 703 provides support and lubrication channels for the shafts of each gear; the mounting hole 701 is used to position the angle shaft 14; and the mounting bolt 702 enables quick positioning and fixing between the storage shell 7 and the reading shell 8.

[0054] Specifically, the transmission assembly includes an angle shaft 14, a first gear 15, a second gear 16, a third gear 17, a fourth gear 18, a sixth gear 20, a seventh gear 21, an eighth gear 22, a ninth gear 23, and a tenth gear 24. The two ends of the first gear 15, the second gear 16, the third gear 17, the fourth gear 18, the sixth gear 20, the seventh gear 21, the eighth gear 22, the ninth gear 23, and the tenth gear 24 are respectively rotatably embedded in the space formed by the storage shell 7 and the reading shell 8 through drag-reducing holes 703.

[0055] In a specific embodiment of the present invention, each gear stage achieves progressive speed reduction through different gear ratios, transforming the high-speed rotation of the impeller into progressively slow rotation of each reading needle.

[0056] Specifically, the angle shaft 14 is rotatably inserted into the inner wall of the mounting hole 701. The top end of the angle shaft 14 has a toothed groove that meshes with the first gear 15 for transmission. The first gear 15 meshes with the second gear 16 for transmission. The second gear 16 meshes with the third gear 17 for transmission. The third gear 17 meshes with the sixth gear 20 for transmission. The sixth gear 20 meshes with the seventh gear 21 for transmission. The seventh gear 21 meshes with the eighth gear 22 for transmission. The eighth gear 22 meshes with the ninth gear 23 for transmission. The ninth gear 23 meshes with the tenth gear 24 for transmission. The fourth gear 18 meshes with the sixth gear 20 for transmission. The fourth gear 18 meshes with the fifth gear 19 for transmission.

[0057] In a specific embodiment of the present invention, the angle shaft 14 serves as the input stage, introducing the rotation of the impeller shaft into the counter; each gear meshes sequentially, reducing speed step by step according to a preset transmission ratio; while the fourth gear 18 meshes with the sixth gear 20, the fourth gear 18 also meshes with the fifth gear 19, enabling the fifth gear 19 to obtain a specific speed.

[0058] Specifically, an indicator needle 25, a first reading needle 26, a second reading needle 27, a third reading needle 28 and a fourth reading needle 29 are rotatably inserted into the top of the outer wall of the reading shell 8, and the bottom opening of the indicator needle 25 is sleeved on the top outer wall of the angle shaft 14.

[0059] In a specific embodiment of the present invention, the indicator needle 25 rotates synchronously with the angle axis 14 to indicate the instantaneous flow rate; the first reading needle 26 to the fourth reading needle 29 correspond to different measurement levels.

[0060] Specifically, the top end of the second gear 16 is inserted into the groove on the bottom inner wall of the first reading needle 26, the top end of the sixth gear 20 is inserted into the groove on the bottom inner wall of the second reading needle 27, the top end of the eighth gear 22 is inserted into the groove on the bottom inner wall of the third reading needle 28, and the top end of the tenth gear 24 is inserted into the groove on the bottom inner wall of the fourth reading needle 29.

[0061] In a specific embodiment of the present invention, the top end of each gear is slotted and inserted into the bottom end of the corresponding reading needle to achieve torque transmission, so that the reading needle rotates synchronously with the gear.

[0062] Specifically, a reading hole 801 is provided on the top of the outer wall of the reading shell 8, a rotating plate 301 is rotatably inserted at one edge of the outer wall of the protective shell 3, a protective plate 302 is embedded in the opening at the center of the other side of the outer wall of the protective shell 3, the opening of the rotating groove 204 extends to the inner wall of the inner shell 201, a quick connector 101 is embedded at one end of the water meter housing 1, and the end of the quick connector 101 near the water meter housing 1 is attached to the outer wall of the sealing ring 6.

[0063] In a specific embodiment of the present invention, the reading hole 801 allows the user to directly observe the indicated values ​​of each reading needle; the rotating plate 301 can be flipped open for easy internal maintenance; the protective plate 302 is made of transparent material to protect the inside of the counter while allowing external observation; the quick connector 101 enables quick connection between the water meter and the pipeline.

[0064] Working principle:

[0065] Step 1: When water flows through the water meter housing 1, the kinetic energy of the water flow drives the impeller inside the water meter housing 1 to rotate. The speed of the impeller is proportional to the instantaneous flow rate. The impeller shaft serves as the power input end, transmitting the rotational motion to the angle shaft 14. The angle shaft 14 is rotatably inserted into the mounting hole 701 at the bottom of the housing 7. The top of the angle shaft 14 has a toothed groove, thereby converting the water flow information into a mechanical rotation signal, providing the original driving force for the metering action of the entire counter.

[0066] Step Two: The rotational motion of the angle shaft 14 is progressively reduced in speed and transmitted through a transmission assembly. Specifically, the top tooth groove of the angle shaft 14 meshes with the first gear 15, driving the first gear 15 to rotate; the first gear 15 meshes with the second gear 16, driving the second gear 16 to rotate; the second gear 16 meshes with the third gear 17, driving the third gear 17 to rotate; the third gear 17 meshes with the sixth gear 20, driving the sixth gear 20 to rotate; the sixth gear 20 meshes with the seventh gear 21, driving the seventh gear 21 to rotate; the seventh gear 21 meshes with the eighth gear 22, driving the eighth gear 22 to rotate; the eighth gear 22 meshes with the ninth gear 23, driving the ninth gear 23 to rotate; the ninth gear 23 meshes with the tenth gear 24, driving the tenth gear 24 to rotate. Each gear reduces speed progressively according to a pre-set gear ratio, converting the high-speed rotation of the impeller into a low-speed rotation suitable for reading indication. The two ends of the first gear 15 to the tenth gear 24 are respectively rotatably embedded in the space formed by the receiving shell 7 and the reading shell 8 through the drag-reducing holes 703 opened on the receiving shell 7 and the reading shell 8. The drag-reducing holes 703 are filled with grease, which effectively reduces the frictional resistance when each gear rotates, ensuring transmission efficiency and long-term operational stability.

[0067] Step 3: During the gear reduction transmission at each stage, multiple reading needles synchronously receive driving force and indicate the corresponding flow rate values. The angle shaft 14 directly drives the indicator needle 25 to rotate. The bottom opening of the indicator needle 25 is sleeved on the top outer wall of the angle shaft 14. The indicator needle 25 rotates synchronously with the angle shaft 14 to indicate instantaneous flow rate changes. The top of the second gear 16 is inserted into the slot at the bottom inner wall of the first reading needle 26, driving the first reading needle 26 to rotate. The top of the sixth gear 20 is inserted into the slot at the bottom inner wall of the second reading needle 27, driving the second reading needle 27 to rotate. The top of the eighth gear 22 is inserted into the slot at the bottom inner wall of the third reading needle 28, driving the third reading needle 28 to rotate. The top of the tenth gear 24 is inserted into the slot at the bottom inner wall of the fourth reading needle 29, driving the fourth reading needle 29 to rotate. Each reading needle rotates at a different speed according to its own reduction ratio, and together they form a complete cumulative flow reading at the reading hole 801 at the top of the outer wall of the reading housing 8, which can be directly observed and recorded by the meter reader on site, realizing a purely mechanical display of the flow rate.

[0068] Step 4: While driving each reading needle, the transmission assembly also synchronously drives the synchronous signaling pointer 30 to rotate, achieving electromechanical separation data acquisition. The fourth gear 18 meshes with the sixth gear 20, and simultaneously with the fifth gear 19, transmitting the rotational motion to the fifth gear 19. The top of the fifth gear 19 penetrates the reading housing 8 and is inserted into the inner wall of the synchronous signaling pointer 30, while the bottom of the fifth gear 19 is inserted into the bottom of the inner wall of the receiving housing 7. Therefore, the fifth gear 19 drives the synchronous signaling pointer 30 to rotate continuously at a speed proportional to the accumulated flow rate. Magnets or induction plates are embedded in the openings on both sides of the bottom of the outer wall of the synchronous signaling pointer 30. During the rotation of the synchronous signaling pointer 30, the magnets and induction plates generate periodically changing magnetic field signals or induction signals.

[0069] Step 5: A magnetic detection electronic device or an induction plate detection electronic device is installed inside the sealed cavity formed by the sealing cylinder 202 and the detection shell 203. This sealed cavity is completely sealed by the spiral engagement of the top of the sealing cylinder 202 with the rotating groove 204 and the fixed connection between the detection shell 203 and the mounting plate 2, effectively isolating external moisture and dust. Sealant can be injected through the opening in the rotating groove 204 to achieve complete sealing. When the synchronous signal pointer 30 rotates, the changing magnetic field generated by the magnet embedded at its bottom or the induction signal generated by the induction plate is detected in real time by the magnetic detection electronic device or the induction plate detection electronic device inside the sealed cavity in a non-contact manner. The detection electronic device collects the rotation angle and speed changes of the synchronous signal pointer 30 in real time according to the detected signal period and frequency, and converts them into corresponding cumulative flow data based on a preset transmission ratio, generating standard format pulse signals or digital signals for external acquisition terminals, handheld meter readers, or remote transmission modules to read. This achieves electronic remote transmission and real-time monitoring of flow, completing electromechanical separation counting and data acquisition.

[0070] Step Six: During flow measurement, the sealing assembly ensures the long-term reliable operation of the counter in humid environments. The inner shell 201 is embedded in the inner wall of the protective shell 3 and fitted onto the outer wall of the mounting plate 2. The transparent shell 802 is fitted onto the outer wall of the reading shell 8, with its bottom edge fitting against the outer wall of the receiving shell 7, together forming multiple layers of sealing protection for the counting area. The sealed cavity formed by the sealing cylinder 202 and the detection shell 203 not only protects the internal detection electronics but also contains desiccant or sealing grease, further preventing moisture from entering the counting gear area.

[0071] Step 7: The valve control assembly is used to achieve remote or manual on / off control of the water circuit. The limiting frame 4 and the sealing ring 6 are embedded in one end of the inner wall of the water meter housing 1. The valve control ball 5 is rotatably embedded in one end of the inner wall of the water meter housing 1, with its outer wall fitting against the side of the limiting frame 4 and the sealing ring 6 that are close to each other. When the external drive device drives the drive shaft 11 to rotate, the drive shaft 11 rotates under the support of the drag-reducing sleeve 10. The other end of the drive shaft 11 is inserted into the drive groove 501 at the top of the valve control ball 5, driving the valve control ball 5 to rotate. When the valve control ball 5 rotates to the open position, the water flow channel is unobstructed; when rotated to the closed position, the valve control ball 5 blocks the water flow. The sealing ring 601 embedded in the outer wall of the sealing ring 6 ensures the sealing of the contact surface between the valve control ball 5 and the sealing ring 6, preventing leakage when the valve is closed. The limiting ring 9 is fixed to the bottom of the mounting plate 2 by bolts, providing stable rotational support for the drive shaft 11.

[0072] Step 8: Throughout the counting and valve control process, the device plate 12, embedded in the groove at the top protruding end of the outer wall of the mounting plate 2, can be used to install external control circuits or communication modules. The sealing shell 13 provides enclosed protection for the device plate 12. The rotating plate 301 on the outer wall of the protective shell 3 can be flipped open for easy maintenance and repair of internal components; the protective plate 302 is made of transparent material, allowing observation of the internal working status without opening the protective shell 3. The quick connector 101 enables rapid installation and disassembly of the water meter and the water supply pipeline, improving construction and maintenance efficiency. Thus, this invention achieves flow display through pure mechanical transmission, while simultaneously enabling remote acquisition of flow data through non-contact electronic detection within the sealed cavity, truly achieving electromechanical separation. This ensures both the accuracy and reliability of metering and meets the digital requirements of smart water systems.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dry-type counter with electromechanical separation, characterized in that, include: Water meter housing (1); The outer wall of the water meter housing (1) is fixed with a mounting plate (2) by bolts. The outer walls of the water meter housing (1) and the mounting plate (2) are fitted with protective shells (3); The valve control assembly is located on the outer wall of one end of the water meter housing (1); The counting component is located on the inner wall of the protective shell (3), wherein: the counting component includes a storage shell (7), a reading shell (8), a transparent shell (802), a transmission component, a fifth gear (19), and a synchronous signal pointer (30). The storage shell (7) and the reading shell (8) are both embedded in the inner wall of the protective shell (3). The transmission component is located at the bottom of the inner wall of the storage shell (7). The top end of the fifth gear (19) penetrates the reading shell (8) and is inserted into the inner wall of the synchronous signal pointer (30). The bottom end of the fifth gear (19) is inserted into the bottom of the inner wall of the storage shell (7). The transparent shell (802) is fitted onto the outer wall of the reading shell (8). The bottom edge of the transparent shell (802) is attached to the outer wall of the storage shell (7). The bottom two openings of the outer wall of the synchronous signal pointer (30) are used to install magnets and sensing plates. A sealing assembly is provided on the inner wall of the protective shell (3), wherein: the sealing assembly includes an inner shell (201), a sealing cylinder (202), a detection shell (203) and a rotating groove (204). The inner shell (201) is embedded in the inner wall of the protective shell (3). The inner shell (201) is sleeved on the outer wall of the mounting plate (2). The rotating groove (204) is opened at the bottom of the outer wall of the mounting plate (2). The top end of the sealing cylinder (202) is spirally embedded in the inner wall of the rotating groove (204). The detection shell (203) is fixedly set at the top of the outer wall of the mounting plate (2). The sealing cylinder (202) and the detection shell (203) form a cavity.

2. The electromechanical separation dry counter as described in claim 1, characterized in that: The valve control assembly includes a limiting frame (4), a valve control ball (5), a sealing ring (6), a drive groove (501), a sealing ring (601), a limiting ring (9), a drag-reducing sleeve (10), and a drive shaft (11).

3. The electromechanical separation dry counter as described in claim 2, characterized in that: The limiting frame (4) and the sealing ring (6) are embedded in one end of the inner wall of the water meter housing (1). The valve control ball (5) is rotatably embedded in one end of the inner wall of the water meter housing (1). The outer wall of the valve control ball (5) is attached to the outer wall side of the limiting frame (4) and the sealing ring (6) that are close to each other. The drive groove (501) is opened at the top of the outer wall of the valve control ball (5). The drag-reducing sleeve (10) is embedded in the inner wall of the limiting ring (9). The limiting ring (9) is fixed to the bottom of the outer wall of the mounting plate (2) by bolts. The drive shaft (11) is rotatably embedded in the inner wall of the drag-reducing sleeve (10). One end of the drive shaft (11) passes through the opening of the outer wall of the mounting plate (2). The other end of the drive shaft (11) is inserted into the inner wall of the drive groove (501).

4. The electromechanical separation dry counter as described in claim 3, characterized in that: The top protruding end of the outer wall of the mounting plate (2) is provided with a groove, the groove of the mounting plate (2) is embedded with an equipment plate (12), and the groove of the mounting plate (2) is embedded with a sealing shell (13) near the top.

5. The electromechanical separation dry counter as described in claim 4, characterized in that: Multiple drag-reducing holes (703) are provided on the outer walls of the storage shell (7) and the reading shell (8) which are close to each other. An installation hole (701) is provided on the bottom of the inner wall of the storage shell (7). An installation bolt (702) is fixedly provided on both sides of the bottom of the inner wall of the storage shell (7), and the top of the installation bolt (702) is inserted into the bottom of the outer wall of the reading shell (8).

6. The electromechanical separation dry counter as described in claim 5, characterized in that: The transmission assembly includes an angle shaft (14), a first gear (15), a second gear (16), a third gear (17), a fourth gear (18), a sixth gear (20), a seventh gear (21), an eighth gear (22), a ninth gear (23), and a tenth gear (24). The two ends of the first gear (15), the second gear (16), the third gear (17), the fourth gear (18), the sixth gear (20), the seventh gear (21), the eighth gear (22), the ninth gear (23), and the tenth gear (24) are respectively rotatably embedded in the space formed by the storage shell (7) and the reading shell (8) through the drag reduction hole (703).

7. The electromechanical separation dry counter as described in claim 6, characterized in that: The angle shaft (14) is rotatably inserted into the inner wall of the mounting hole (701). The top end of the angle shaft (14) is provided with a tooth groove and is meshed and driven with the first gear (15). The first gear (15) is meshed and driven with the second gear (16). The second gear (16) is meshed and driven with the third gear (17). The third gear (17) is meshed and driven with the sixth gear (20). The sixth gear (20) is meshed and driven with the seventh gear (21). The seventh gear (21) is meshed and driven with the eighth gear (22). The eighth gear (22) is meshed and driven with the ninth gear (23). The ninth gear (23) is meshed and driven with the tenth gear (24). The fourth gear (18) is meshed and driven with the sixth gear (20). The fourth gear (18) is meshed and driven with the fifth gear (19).

8. The electromechanical separation dry counter as described in claim 7, characterized in that: The top of the outer wall of the reading shell (8) is rotatably fitted with an indicator needle (25), a first reading needle (26), a second reading needle (27), a third reading needle (28) and a fourth reading needle (29). The bottom opening of the indicator needle (25) is sleeved on the top outer wall of the angle shaft (14).

9. The electromechanical separation dry counter as described in claim 8, characterized in that: The top end of the second gear (16) is inserted into the groove on the bottom inner wall of the first reading needle (26), the top end of the sixth gear (20) is inserted into the groove on the bottom inner wall of the second reading needle (27), the top end of the eighth gear (22) is inserted into the groove on the bottom inner wall of the third reading needle (28), and the top end of the tenth gear (24) is inserted into the groove on the bottom inner wall of the fourth reading needle (29).

10. The electromechanical separation dry counter as described in claim 9, characterized in that: The top of the outer wall of the reading shell (8) is provided with a reading hole (801). A rotating plate (301) is inserted into one edge of the outer wall of the protective shell (3). A protective plate (302) is embedded in the center of the other side of the outer wall of the protective shell (3). The opening of the rotating groove (204) extends to the inner wall of the inner shell (201). A quick connector (101) is embedded in one end of the water meter housing (1), and the end of the quick connector (101) near the water meter housing (1) is attached to the outer wall of the sealing ring (6).

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