Mechanical counter for electronic water meter

Abstract

The utility model provides a mechanical counter for an electronic type water meter, which comprises a shell, a transparent plate is arranged at the top of the shell, an upper clamping plate and a lower clamping plate are respectively arranged in the shell, a mechanical counting device is arranged between the upper clamping plate and the lower clamping plate, a stepping motor is arranged on the lower clamping plate, and the stepping motor is connected with the transparent plate. A stepping motor is installed in the lower clamping plate, the stepping motor is connected with a mechanical counting device, a circuit board is installed between the lower clamping plate and the shell, the stepping motor is electrically connected with the circuit board, the circuit board is electrically connected with a power source, and the circuit board is in signal connection with an electronic water meter. When the electronic water meter is continuously used due to unforeseen circumstances and exceeding the service life, the water volume data of the electronic water meter before power failure is kept in the character wheel and the pointer which are mechanically displayed, and the display mode of the mechanical character wheel and the pointer is accepted by vast water users, so that water fee disputes are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water flow measurement, in particular to a mechanical counter used for an electronic water meter. Background Art

[0002] Since fully electronic water meters, such as ultrasonic and electromagnetic water meters, lack mechanical transmission components, they are immune to wear and tear during use. Ultrasonic water meters measure water flow by emitting ultrasonic signals and receiving echoes; electromagnetic water meters detect water velocity within pipes by analyzing and measuring the potential difference generated by water flowing through magnetic lines of force. This means they do not affect water quality and reduce the potential for wear and blockage. Furthermore, fully electronic water meters provide highly accurate data, making them suitable for applications requiring precise measurement, such as billing and flow monitoring. Fully electronic water meters have a wide measurement range. They can adapt to pipes of varying sizes and flow rates, effectively measuring flows from low to high. This makes fully electronic water meters flexible across a wide range of applications. The design of fully electronic water meters minimizes pressure loss as water flows through them, ensuring stable flow and accurate flow measurement.

[0003] However, fully electronic water meters typically use electronic display technologies such as LCDs. This means that if a power outage occurs or the meter continues to operate beyond its designed lifespan, the LCD may shut down or lose power due to low battery power, rendering it unable to display historical or current water readings. This lack of water usage data can easily lead to water bill disputes between water companies and users. This issue is a potential problem for fully electronic water meters, and there is currently no effective solution. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a mechanical counter for an electronic water meter, which can display the water volume reading at the time of power outage by the mechanical counter to reduce disputes between water companies and users.

[0005] The specific technical solution is as follows: A mechanical counter for an electronic water meter includes a shell, a transparent plate is provided on the top of the shell, an upper splint and a lower splint are respectively installed in the shell, a mechanical counting device is installed between the upper splint and the lower splint, a stepper motor is installed on the lower splint, the stepper motor is connected to the mechanical counting device, a circuit board is installed between the lower splint and the shell, the stepper motor is electrically connected to the circuit board, the circuit board is electrically connected to the power supply, and the circuit board is connected to the electronic water meter signal.

[0006] Through the above technical solution, the mechanical counter can display the water volume reading at the time of power outage, thereby reducing disputes between water companies and users.

[0007] Preferably, a battery is installed between the circuit board and the lower clamping plate, and the battery is electrically connected to the circuit board.

[0008] The above technical solution is powered by batteries and can be used when the mechanical counter of an electronic water meter is inconvenient to connect to an external power supply.

[0009] Preferably, the battery is an annular battery having an installation space therein, and the stepper motor is installed in the installation space.

[0010] Through the above technical solution, the structure of the battery and the motor is made more compact, and the space occupied by the mechanical counter of the electronic water meter is reduced.

[0011] Preferably, the stepper motor includes a coil box, a coil and a rotor, the coil is installed in the coil box, a magnet is installed on the rotor, the magnet and the coil are located in the same plane, one end of the rotor is rotatably connected to the coil box, and the other end passes through the lower clamping plate and is rotatably connected to the upper clamping plate, and gear teeth are provided on the rotor between the upper clamping plate and the lower clamping plate, and the gear teeth are connected to a mechanical counting device.

[0012] Through the above technical solution, the coil box, the upper clamping plate and the lower clamping plate together constitute the shell of the stepping motor, making the structure of the stepping motor and the upper clamping plate and the lower clamping plate more compact.

[0013] Preferably, a bearing is installed on the coil box, and the rotor is installed on the bearing.

[0014] The above technical solution can reduce the friction between the rotor and the terminal box.

[0015] Preferably, the mechanical counting device includes a transmission gear set, a character wheel and a pointer, the transmission gear set is connected to the rotor of the stepping motor, the transmission gear set is respectively connected to the character wheel and the pointer for driving the character wheel and the pointer to rotate, and the character wheel and the pointer are used to display the water meter reading.

[0016] Through the above technical solution, the display mode of the character wheel and the pointer is more in line with the user's habits.

[0017] Preferably, an observation window is provided on the upper plate at the character wheel, the pointer is located above the upper plate, and the pointer is connected to the gear set via a rotating shaft passing through the upper plate.

[0018] Through the above technical solution, the readings of the character wheel and the pointer can be seen directly through the transparent plate.

[0019] Preferably, the housing is a stainless steel box.

[0020] Through the above solution, the outer shell adopts a stainless steel box, which is simpler to process, and the use of stainless steel increases the service life in a humid environment.

[0021] Preferably, a sealing ring is provided between the housing and the transparent plate.

[0022] By means of the above technical solution, the sealing performance of the mechanical counter is increased.

[0023] The beneficial effects of the utility model are:

[0024] A mechanical counter for an electronic water meter is designed by redesigning a conventional electronic display counter into a counter with a mechanical transmission display driven by a stepper motor. On the one hand, the electronic signal containing water volume information is converted into the rotation angle and speed of the stepper motor, which then drives the gears to rotate, thereby accumulating water consumption. On the other hand, if the water meter continues to be used due to an accident or exceeding its service life, and a power outage occurs that prevents the motor from rotating, the water volume data before the power outage will be retained in the mechanical display wheel and pointer. This mechanical display method is widely accepted by water users, and water bill disputes will not arise. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0026] Figure 1 This is a structural diagram of Example 1 of the utility model;

[0027] Figure 2 Based Figure 1 AA section view; DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from the description. Those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1

[0031] like Figures 1-2 As shown, an intelligent air mattress and a mechanical counter for an electronic water meter include a shell 1 (a stainless steel box is used in this embodiment). A transparent plate 4 is provided on the top of the shell 1, and a sealing ring 5 is provided between the shell 1 and the transparent plate 4. An upper splint 11 and a lower splint 12 are respectively installed in the shell 1, and a mechanical counting device is installed between the upper splint 11 and the lower splint 12. A stepper motor is installed on the lower splint 12, and the stepper motor is connected to the mechanical counting device. A circuit board 13 is installed between the lower splint 12 and the shell 1, and the stepper motor is electrically connected to the circuit board 13. The circuit board 13 is electrically connected to a power supply. In this embodiment, the power supply adopts a ring battery 14, and the ring battery 14 has an installation space, and the stepper motor is installed in the installation space. The circuit board 13 is connected to the electronic water meter signal.

[0032] Specifically, the stepper motor includes a coil box 21, a coil 22 and a rotor 23. The coil 22 is installed in the coil box 21. The rotor 23 passes through the coil 22. A magnet 24 is installed on the rotor 23. The magnet 24 and the coil 22 are located in the same plane. One end of the rotor 23 is installed on the coil box 21 through a bearing, and the other end passes through the lower clamping plate 12 and is rotatably connected to the upper clamping plate 11. Gear teeth are provided on the rotor between the upper clamping plate 11 and the lower clamping plate 12, and the gear teeth are connected to a mechanical counting device.

[0033] Specifically, the mechanical counting device includes a transmission gear set 31, a character wheel 32, and a pointer 33. The transmission gear set 31 is connected to the gear teeth 231 on the rotor 23. The transmission gear set 31 is connected to the character wheel 32 and the pointer 33 respectively to drive the character wheel 32 and the pointer 33 to rotate. The character wheel 32 and the pointer 33 are used to display the water meter reading. An observation window 111 is provided on the upper plate 11 at the character wheel 32. The pointer 33 is located above the upper plate 11 and is connected to the gear set 231 via a rotating shaft that passes through the upper plate 11.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A mechanical counter for an electronic water meter, characterized in that: It includes a shell, a transparent plate is provided on the top of the shell, an upper clamping plate and a lower clamping plate are respectively installed in the shell, a mechanical counting device is installed between the upper clamping plate and the lower clamping plate, a stepping motor is installed on the lower clamping plate, the stepping motor is connected to the mechanical counting device, a circuit board is installed between the lower clamping plate and the shell, the stepping motor is electrically connected to the circuit board, the circuit board is electrically connected to the power supply, and the circuit board is connected to the electronic water meter signal.

2. A mechanical counter for an electronic water meter according to claim 1, characterized in that: A battery is installed between the circuit board and the lower clamping plate, and the battery is electrically connected to the circuit board.

3. A mechanical counter for an electronic water meter according to claim 2, characterized in that: The battery is an annular battery having an installation space therein, and the stepper motor is installed in the installation space.

4. A mechanical counter for an electronic water meter according to claim 3, characterized in that: The stepper motor includes a coil box, a coil and a rotor. The coil is installed in the coil box. A magnet is installed on the rotor. The magnet and the coil are located in the same plane. One end of the rotor is rotatably connected to the coil box, and the other end passes through the lower clamping plate and is rotatably connected to the upper clamping plate. Gear teeth are provided on the rotor between the upper clamping plate and the lower clamping plate, and the gear teeth are connected to a mechanical counting device.

5. A mechanical counter for an electronic water meter according to claim 4, characterized in that: A bearing is installed on the coil box, and the rotor is installed on the bearing.

6. A mechanical counter for an electronic water meter according to claim 1, characterized in that: The mechanical counting device includes a transmission gear set, a character wheel and a pointer. The transmission gear set is connected to the rotor of the stepping motor. The transmission gear set is respectively connected to the character wheel and the pointer to drive the character wheel and the pointer to rotate. The character wheel and the pointer are used to display the water meter reading.

7. A mechanical counter for an electronic water meter according to claim 6, characterized in that: An observation window is provided on the upper splint at the character wheel, and the pointer is located above the upper splint. The pointer passes through the upper splint and is connected to the gear set via a rotating shaft.

8. The mechanical counter for an electronic water meter according to claim 1, characterized in that: The shell is a stainless steel box.

9. The mechanical counter for an electronic water meter according to claim 1, characterized in that: A sealing ring is provided between the shell and the transparent plate.

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