Metering indication mechanism for water meter

Abstract

A metering indication mechanism for a water meter comprises an assembling frame, a gear transmission assembly assembled in the assembling frame and a character wheel assembly used for displaying metering data, and the gear transmission assembly obtains driving force through an impeller connected with the water meter and is in transmission connection with the character wheel assembly. The gear transmission assembly comprises a center gear shaft, a first gear shaft, a first transmission set and a second transmission set. And the central gear shaft is coaxially connected with the impeller. The first gear shaft is in meshed connection with the central gear shaft through a gear, and the first transmission set and the second transmission set are located on the two sides of the first gear shaft and are in meshed connection with the first gear shaft through gears. A plum blossom pointer is assembled on the central gear shaft, and a sampling pointer is assembled on the first transmission group. The second transmission group is in transmission connection with the character wheel assembly, and a reading pointer is assembled on the second transmission group. According to the structural design, multiple sampling structures are provided, different use requirements can be met, and the applicability and sampling precision of products are improved.

Description

Technical Field

[0001] This utility model belongs to the field of water meter measurement technology, specifically relating to a metering indication mechanism for water meters. Background Technology

[0002] With the acceleration of urbanization and the increasing importance of water resource management, water meters, as an important tool for measuring water consumption, play an indispensable role in residential life, industrial production, and public services. Traditional water meters mainly use mechanical structures to measure and display water consumption, and usually only support one sampling method, such as visual recognition or non-magnetic sampling. This single sampling method limits the application range and flexibility of water meters, and may also lead to large data errors.

[0003] Therefore, based on some of the situations in the prior art described above, this application has made further designs and improvements. Utility Model Content

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution.

[0005] A metering indicator mechanism for a water meter includes an assembly frame, a gear transmission assembly mounted within the assembly frame, and a display wheel assembly for displaying metering data. The gear transmission assembly obtains driving force through a connection to the impeller of the water meter and is driven by the display wheel assembly. The gear transmission assembly includes a central gear shaft, a first gear shaft, a first transmission group, and a second transmission group. The central gear shaft is coaxially connected to the impeller. The first gear shaft is connected to the central gear shaft via gear meshing. The first and second transmission groups are located on opposite sides of the first gear shaft and are both connected to the first gear shaft via gear meshing. A cloverleaf pointer is mounted on the central gear shaft, and a sampling pointer is mounted on the first transmission group. The second transmission group is driven by the display wheel assembly and is equipped with a reading pointer. This structural design offers multiple sampling options. Water meters using this indicator structure can perform visual recognition sampling via the cloverleaf pointer in conjunction with relevant sensors, or non-magnetic sampling via the sampling pointer in conjunction with relevant sensors. This diverse and compatible sampling allows the application to adapt to different usage requirements, improving the product's applicability and sampling accuracy.

[0006] As a preferred technical solution for a metering and indicating mechanism for a water meter, the first transmission group includes a second gear shaft and a third gear shaft, and the second transmission group includes a fourth gear shaft, a fifth gear shaft, and a worm shaft. The central gear shaft is provided with tooth A, and the first gear shaft is provided with teeth a, B, and C. Tooth a and tooth A are meshed together. The second gear shaft is provided with teeth b and tooth D. Tooth b and tooth B are meshed together. The third gear shaft is provided with tooth d, and a sampling pointer is mounted on the top of the third gear shaft. Tooth d and tooth D are meshed together. The fourth gear shaft is provided with teeth c and tooth E. Tooth c and tooth C are meshed together. The fifth gear shaft is provided with teeth e and tooth F. Tooth e and tooth E are meshed together. The worm shaft is provided with teeth f and a worm section. Tooth f and tooth F are meshed together, and the worm section is drivenly connected to the digit wheel assembly. This gear arrangement not only improves transmission efficiency but also enhances the stability and durability of the transmission structure, enabling the entire device to maintain high precision even after long-term operation.

[0007] As a preferred technical solution for a metering and indicating mechanism in a water meter, the digit wheel assembly includes a first connecting shaft and a second connecting shaft. A plurality of digit wheel disks are axially mounted on the first connecting shaft. A plurality of actuating posts are distributed circumferentially at intervals on the surface of the digit wheel disk facing the worm shaft. The scale on the digit wheel disk is divided into several divisions according to the number of actuating posts. A set of skip blocks is provided on the surface of the digit wheel disk on the side facing away from the worm shaft, corresponding to the area where the actuating posts are located. The worm shaft achieves transmission by engaging with the actuating post on the digit wheel disk closest to the worm shaft. A plurality of actuating blocks are axially mounted on the second connecting shaft, each actuating block corresponding to the gap between two sets of adjacent digit wheel disks. An actuating strip is circumferentially provided on each actuating block, engaging with the actuating post; the height of the actuating strip is greater than the height of the actuating post. When the digit wheel disk corresponding to the skip block rotates one revolution in two sets of adjacent digit wheel disks, the actuating strip is driven to rotate by the skip block, thereby driving the digit wheel disk corresponding to the actuating post to rotate one division. The above design enables precise ticking and transmission, ensuring accurate display of measurement data.

[0008] As a preferred technical solution for a metering and indicating mechanism in a water meter, the actuating bar is divided into long and short bars, which are evenly distributed alternately. The jump block is U-shaped, and the jump block is provided with a meshing groove adapted to the shape of the long bar. This design ensures that the actuating block is subjected to uniform force, preventing the actuating block from jamming during transmission.

[0009] Compared with the prior art, this application has the following advantages: good compatibility, which enables it to adapt to different usage needs and improves the applicability flexibility and sampling accuracy of the product. Attached Figure Description

[0010] The following is an explanation of the markings in the accompanying drawings:

[0011] Figure 1 This is a three-dimensional schematic diagram of a measuring and indicating mechanism.

[0012] Figure 2 This is an assembly diagram of the gear transmission assembly and the letter wheel assembly.

[0013] Figure 3 This is a top view of the gear drive assembly and the type wheel assembly.

[0014] Figure 4 This is an exploded view of the gear transmission assembly and the letter wheel assembly.

[0015] Figure 5 A plan view of the assembly of the character wheel (adjacent character wheels are distinguished by solid and dashed lines) and the toggle block.

[0016] Figure 6 A three-dimensional diagram of a character wheel.

[0017] Figure 7 This is a three-dimensional schematic diagram of the toggle block.

[0018] 100. Assembly rack;

[0019] 200. Central gear shaft; 201. Magnet; 202. Plum blossom pointer; 210. First gear shaft; 220. Second gear shaft; 230. Third gear shaft; 231. Sampling pointer; 240. Fourth gear shaft; 250. Fifth gear shaft; 251. Reading pointer; 260. Worm shaft; 261. Worm section;

[0020] 300, First connecting shaft; 301, character wheel; 302, toggle post; 303, skip block; 304, meshing groove; 310, Second connecting shaft; 311, toggle block; 312, long toggle bar; 313, short toggle bar. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] In the following embodiments, the same or similar reference numerals denote the same or similar components or components with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] In the description of this utility model, it should be understood that the terms such as center, longitudinal, transverse, length, width, thickness, upper, lower, front, back, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, and counterclockwise, indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features shown. In the description of this utility model, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Reference Figures 1 to 7 A metering indicator mechanism for a water meter includes an assembly frame 100, a gear transmission assembly mounted within the assembly frame 100, and a display wheel assembly for displaying metering data. The gear transmission assembly obtains driving force through a connection to the impeller of the water meter and is driven by the display wheel assembly. The gear transmission assembly includes a central gear shaft 200, a first gear shaft 210, a first transmission group, and a second transmission group. A magnet 201 is mounted at the bottom of the central gear shaft 200. The magnet 201 is a high-quality, high-coercivity permanent magnet to prevent demagnetization and metering failure. The central gear shaft 200 is coaxially connected to the impeller. The first gear shaft 210 is connected to the central gear shaft 200 via gear meshing. The first and second transmission groups are located on both sides of the first gear shaft 210 and are both connected to the first gear shaft 210 via gear meshing. A star-shaped pointer 202 is mounted on the central gear shaft 200, and a sampling pointer 231 is mounted on the first transmission group. The second transmission group is connected to the digit wheel assembly, and a reading pointer 251 is mounted on the second transmission group. The reading pointer 251, in conjunction with the digit wheel assembly, facilitates manual reading. The above structural design offers multiple sampling methods. Water meters employing this indicator structure can perform visual recognition sampling via the plum blossom pointer 202 in conjunction with relevant sensors, or non-magnetic or magnetoresistive sampling via the sampling pointer 231 in conjunction with relevant sensors. This diverse and compatible sampling method allows this application to adapt to different usage requirements, enhancing the product's applicability.

[0025] The sampling pointer 231 can be either a non-magnetic pointer or a magnetoresistive pointer, depending on the requirements. When the sampling pointer 231 is a non-magnetic pointer, it can perform non-magnetic sampling in conjunction with a corresponding non-magnetic sensor; when the sampling pointer 231 is a magnetoresistive pointer, it can perform magnetoresistive sampling in conjunction with a corresponding magnetoresistive sensor. This design allows the water meter to work stably and accurately under different environments and requirements. Compared with traditional reed switch sampling, non-magnetic sampling and magnetoresistive sampling are more stable and have higher sampling accuracy.

[0026] Further, the first transmission group includes a second gear shaft 220 and a third gear shaft 230, and the second transmission group includes a fourth gear shaft 240, a fifth gear shaft 250, and a worm shaft 260. The central gear shaft 200 is provided with tooth A, and the first gear shaft 210 is provided with tooth a, tooth B, and tooth C. Tooth a and tooth A are meshed together. The second gear shaft 220 is provided with tooth b and tooth D. Tooth b and tooth B are meshed together. The third gear shaft 230 is provided with tooth d, and a sampling pointer 231 is mounted on the top of the third gear shaft 230. Tooth d and tooth D are meshed together. The fourth gear shaft 240 is provided with tooth c and tooth E. Tooth c and tooth C are meshed together. The fifth gear shaft 250 is provided with tooth e and tooth F. Tooth e and tooth E are meshed together. The worm shaft 260 is provided with a toothed portion f and a worm portion 261. The toothed portion f and the toothed portion F are meshed together, and the worm portion 261 is drivenly connected to the type wheel assembly. The above structure is an optimized design based on the traditional gear transmission structure, which reduces the number of gears, not only improving transmission efficiency but also reducing the failure rate, enhancing the stability and durability of the transmission structure, so that the entire device can maintain high precision even after long-term operation.

[0027] Further, the character wheel assembly includes a first connecting shaft 300 and a second connecting shaft 310. A plurality of character wheel disks 301 are axially mounted on the first connecting shaft 300. A plurality of actuating posts 302 are distributed circumferentially at intervals on the surface of the character wheel disks 301 facing the worm shaft 260. The scale on the character wheel disks 301 is divided into several sections according to the number of actuating posts 302. A set of skip blocks 303 are provided on the surface of the character wheel disks 301 on the side facing away from the worm shaft 260, corresponding to the area where the actuating posts 302 are located. The worm gear 261 achieves transmission by engaging with the actuating post 302 on the character wheel disk 301 closest to the worm shaft 260. A plurality of actuating blocks 311 are axially mounted on the second connecting shaft 310. The actuating blocks 311 correspond to the gaps between two sets of adjacent character wheel disks 301. The actuating block 311 is equipped with an actuating bar that meshes with the actuating post 302. The height of the actuating bar is greater than the height of the actuating post 302. When the character wheel 301 corresponding to the jump block 303 rotates one revolution in one of the two adjacent character wheel discs 301, the actuating bar is driven to rotate by the jump block 303, which in turn drives the character wheel 301 corresponding to the actuating post 302 to rotate one increment. This design achieves precise incrementing and transmission, ensuring accurate display of measurement data.

[0028] As a further optimization of the dial assembly, the actuating bar is divided into a long actuating bar 312 and a short actuating bar 313, which are evenly distributed alternately. The jump block 303 is U-shaped, and the jump block 303 is provided with a meshing groove 304 adapted to the shape of the long actuating bar 312. This design ensures that the actuating block 311 is subjected to uniform force, avoiding jamming of the actuating block 311 during transmission.

[0029] The scope of protection of this utility model includes, but is not limited to, the above embodiments. The scope of protection of this utility model is defined by the claims. Any substitutions, modifications, or improvements to this technology that are easily conceived by those skilled in the art shall fall within the scope of protection of this utility model.

Claims

1. A metering indication mechanism for a water meter, comprising an assembly frame (100) and a gear transmission assembly and a display wheel assembly for displaying metering data, wherein the gear transmission assembly obtains driving force through an impeller connected to the water meter and is drively connected to the display wheel assembly; characterized in that, The gear transmission assembly includes a central gear shaft (200), a first gear shaft (210), a first transmission group, and a second transmission group; the central gear shaft (200) is coaxially connected to the impeller; the first gear shaft (210) is connected to the central gear shaft (200) by gear meshing; the first transmission group and the second transmission group are located on both sides of the first gear shaft (210) and are both connected to the first gear shaft (210) by gear meshing; The central gear shaft (200) is equipped with a plum blossom pointer (202), and the first transmission group is equipped with a sampling pointer (231); the second transmission group is connected to the character wheel assembly, and the second transmission group is equipped with a reading pointer (251).

2. The metering and indicating mechanism for a water meter according to claim 1, characterized in that, The first transmission group includes a second gear shaft (220) and a third gear shaft (230), and the second transmission group includes a fourth gear shaft (240), a fifth gear shaft (250) and a worm shaft (260). The central gear shaft (200) is provided with tooth A, and the first gear shaft (210) is provided with tooth a, tooth B and tooth C; tooth a and tooth A are meshed together. The second gear shaft (220) is provided with tooth b and tooth D; tooth b and tooth B are meshed together. The third gear shaft (230) is provided with a tooth d, and a sampling pointer (231) is mounted on the top of the third gear shaft (230); the tooth d and the tooth D are meshed together. The fourth gear shaft (240) is provided with tooth c and tooth E; tooth c and tooth C are meshed together. The fifth gear shaft (250) is provided with tooth e and tooth F; tooth e and tooth E are meshed together. The worm shaft (260) is provided with a toothed part f and a worm part (261); the toothed part f and the toothed part F are meshed and connected, and the worm part (261) is connected to the character wheel assembly for transmission.

3. The metering and indicating mechanism for a water meter according to claim 2, characterized in that, The character wheel assembly includes a first connecting shaft (300) and a second connecting shaft (310); The first connecting shaft (300) is equipped with a plurality of character wheel disks (301) along the axial direction. On the side of the character wheel disk (301) facing the worm shaft (260), a plurality of actuating pins (302) are distributed circumferentially. The scale on the character wheel disk (301) is divided into several grids according to the number of actuating pins (302). On the side of the character wheel disk (301) facing away from the worm shaft (260), a set of skip blocks (303) are provided on the surface of the area where the actuating pins (302) are located. The worm gear (261) realizes transmission by meshing with the actuating pins (302) on the character wheel disk (301) closest to the worm shaft (260). The second connecting shaft (310) is equipped with a plurality of actuating blocks (311) along the axial direction. The actuating blocks (311) correspond to the gap between two sets of adjacent character wheels (301). The actuating blocks (311) are provided with a circumferential actuating bar that meshes with the actuating post (302). The height of the actuating bar is greater than the height of the actuating post (302). When the character wheel (301) corresponding to the jump block (303) rotates one revolution in the two sets of adjacent character wheels (301), the actuating bar is driven to rotate by the jump block (303), which in turn drives the character wheel (301) corresponding to the actuating post (302) to rotate one revolution.

4. A metering and indicating mechanism for a water meter according to claim 3, characterized in that, The actuating bar is divided into a long actuating bar (312) and a short actuating bar (313), and the short actuating bar (313) and the long actuating bar (312) are evenly distributed alternately; the jump block (303) is U-shaped, and the jump block (303) is provided with a meshing groove (304) adapted to the shape of the long actuating bar (312).

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