A portable liquid-sealed water meter filling device and filling method

Abstract

The application provides a portable liquid-sealed water meter water filling device, which comprises a shell and a vibrating mechanism, the shell serves as a support and mounting carrier, a hand holding part for hand holding is arranged on the shell, and a working surface for contacting with a water meter is arranged at the front end of the shell; the vibrating mechanism is mounted in the shell and comprises a driving motor, the output end of the driving motor is connected with a sliding block which is slidably arranged in the mounting cavity through an eccentric connecting assembly, and the driving motor is used for driving the sliding block to reciprocatingly move in a direction perpendicular to the working surface and generate vibration. The portable liquid-sealed water meter water filling device and the water filling method thereof have the advantages of compact structure, small volume, convenient use, good effect, greatly improved assembly efficiency and product qualification rate.

Description

Technical Field

[0001] This invention relates to a water meter assembly tool, and more particularly to a portable liquid-sealed water meter filling device and filling method. Background Technology

[0002] The water filling assembly of a liquid-sealed water meter counter is an operation performed during the installation of a liquid-sealed water meter. Its main function is to remove residual air bubbles inside the counter, ensuring that the counter is fully filled. A fully filled counter helps prevent the exchange of water and gas between the counter and the water meter pipeline, thus reducing the growth of algae and greening on the counter's pointer surface and ensuring the clarity of the meter's indication mechanism. Furthermore, it ensures a stable fluid state inside the meter, reducing the risk of deviations at low flow rates caused by air bubbles within the sensitive pointer and gears. The surface tension of water and air bubbles causes viscosity in the sensitive pointer and gears, hindering their rotation under low flow conditions and leading to measurement errors, thus ensuring the accuracy of the water meter's measurements.

[0003] Therefore, it can be said that the purpose of filling the liquid-sealed water meter with water is to ensure the stability of the liquid state inside the water meter and to ensure accurate measurement of water flow. It is a necessary step in assembling the liquid-sealed water meter.

[0004] The most common method for removing air bubbles from the counter during the assembly of liquid-sealed water meters is to strike the glass surface of the water meter with a rubber hammer as water overflows from the meter casing. The vibration generated by the hammer causes the water to flow out the air bubbles from the counter. However, this method is relatively inefficient and has a certain percentage of incomplete filling. Summary of the Invention

[0005] Technical problems to be solved

[0006] The technical problem to be solved by the present invention is to provide a portable liquid-sealed water meter filling device and filling method that is small in size, easy to carry, convenient to use, and can expel air bubbles in the water meter counter through vibration and ultrasonic waves.

[0007] Technical solutions to the problem

[0008] This invention provides a portable liquid-sealed water meter filling device, comprising:

[0009] The housing 1 serves as a support and mounting carrier, and the housing 1 is provided with a handheld part 12 for handheld use. The front end of the housing 1 is provided with a working surface 131 for contacting the water meter.

[0010] The vibration mechanism is installed inside the housing 1 and includes a drive motor 3. The output end of the drive motor 3 is connected to the slider 21 that slides in the mounting cavity through an eccentric connection assembly 4. The drive motor 3 is used to drive the slider 21 to reciprocate in a direction perpendicular to the working surface 131 and generate vibration.

[0011] Battery 5 is disposed inside the housing 1 and is electrically connected to the drive motor 3 via a circuit board;

[0012] A switch 14 is disposed on the side wall of the housing 1. The switch 14 is electrically connected to the circuit board and is used to control the drive motor.

[0013] Furthermore, the eccentric connection assembly 4 includes an eccentric shaft 41 and a connecting rod 42. The eccentric shaft 41 is fixed to the output end of the drive motor 3. A first connecting shaft 411 parallel to the output shaft of the drive motor is eccentrically arranged on the eccentric shaft 41. The head of the connecting rod 42 is hinged to the first connecting shaft 411, and the tail of the connecting rod 42 is hinged to the slider 21.

[0014] Furthermore, a guide sleeve 22 is fixed inside the housing 1. The axis of the guide sleeve 22 is perpendicular to the working surface 131. The slider 21 is slidably fitted inside the guide sleeve 22. A connecting seat 24 is fixed at the end of the slider 21. A second connecting shaft 241 is provided on the connecting seat 24, which is parallel to the first connecting shaft 411 and is used to hinge with the connecting rod 42.

[0015] Furthermore, the slider 21 is provided with a counterweight 23 for increasing weight to improve inertia.

[0016] Furthermore, the housing 1 is provided with a resonant spring 65 parallel to the sliding direction of the slider 21, and the resonant spring 65 is located at the rear end of the housing.

[0017] Furthermore, the housing 1 is provided with a mounting base 62, which is located at the rear end of the vibration mechanism. The side wall of the mounting base 62 is provided with a shaft parallel to the sliding direction of the slider. A spring seat 64 is slidably mounted on the shaft. The end of the shaft is threadedly connected to a limiting seat 63 for limiting the movement. The resonant spring 65 is disposed between the mounting base 62 and the spring seat 64 and has a tendency to move the spring seat 64 toward the limiting seat. The housing is provided with a lever 66 for rotating the limiting seat 63 to achieve axial movement and adjusting the compression of the resonant spring.

[0018] Furthermore, the housing 1 is provided with an ultrasonic generator 7 facing the working surface 131 and used to create a cavitation effect on the water in the water meter during assembly so that air is discharged from the water meter.

[0019] Furthermore, the housing 1 includes a cylindrical first housing and a second housing disposed on the side wall of the first housing, the second housing forming the handheld part 12.

[0020] Furthermore, the front end of the housing 1 is provided with a cylindrical boss 13, and the end face of the boss forms the working surface 131.

[0021] Furthermore, the housing 1 is an overall sealed and waterproof structure.

[0022] Meanwhile, the present invention also provides a method for filling a liquid-sealed water meter, which includes the following steps:

[0023] S1. Assemble the water meter movement into the water meter case, and screw the ring cover used to fix the movement onto the case without tightening it.

[0024] S2. Immerse the water meter in a water tank with flowing water, with the counting end of the water meter facing upwards, and fix it in place with a clamp.

[0025] S3. Handheld portable liquid-sealed water meter filling device. After its working surface contacts the glass on the water meter, it is turned on. The drive motor drives the slider to move back and forth through the eccentric connection component. The vibration generated impacts the glass surface of the water meter, causing the water meter to vibrate as a whole and expel the internal air.

[0026] S31. The ultrasonic generator can be turned on selectively. The ultrasonic generator transmits ultrasonic energy into the water meter in the direction of the working surface, causing the air bubbles in the counter of the water meter to expand in volume due to the cavitation effect of the ultrasonic waves, and to be discharged from the water meter under the action of vibration and / or water flow.

[0027] S4. After no more air bubbles emerge from the water meter, tighten the water meter ring and water meter casing manually or mechanically using a special tool.

[0028] S5. Remove the assembled water meter from the water tank, drain the water from its interior, and place it in the material area.

[0029] S6. Assembly complete.

[0030] Beneficial effects

[0031] This invention relates to a portable liquid-sealed water meter filling device. It features a handheld structure, is compact and small in size, making it easy and labor-saving to carry. A slider structure generates reciprocating motion and vibration, producing a high-speed impact on the water meter casing. This vibration expels air bubbles from the water meter counter, resulting in high impact frequency, high air venting efficiency, and excellent effect, significantly improving assembly efficiency and product quality. A counterweight structure increases the slider's mass, enhancing vibration force and thus increasing the impact force on the water meter, further improving air venting. This counterweight also contributes to the overall miniaturization of the structure. An adjustable resonant spring adjusts the resonance frequency between the spring and the slider, enhancing the resonance frequency and improving performance. An ultrasonic generator transmits ultrasonic energy into the water meter, causing air bubbles in the counter to expand due to the ultrasonic cavitation effect. These bubbles are then expelled from the water meter under the influence of vibration and water flow, resulting in a small volume and further improving assembly quality. This portable liquid-sealed water meter filling device and its filling method are compact, small in size, easy to use, and effective, significantly improving assembly efficiency and product qualification rate. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the portable liquid-sealed water meter filling device of the present invention;

[0033] Figure 2 This is another structural schematic diagram of the portable liquid-sealed water meter filling device of the present invention;

[0034] Figure 3 This is a cross-sectional view of the portable liquid-sealed water meter filling device of the present invention;

[0035] Figure 4 This is a schematic diagram of the vibration mechanism of the portable liquid-sealed water meter filling device of the present invention;

[0036] Figure 5 This is a schematic diagram of the vibration mechanism of the portable liquid-sealed water meter filling device of the present invention from another angle.

[0037] Figure 6 This is a cross-sectional view of the vibration mechanism of the portable liquid-sealed water meter filling device of the present invention;

[0038] Figure 7 This is a partially enlarged view of the portable liquid-sealed water meter filling device of the present invention. Detailed Implementation

[0039] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0040] See Figures 1-7This invention provides a portable liquid-sealed water meter filling device that can fully expel air bubbles from the water meter counter during water meter assembly. It includes a housing 1, which serves as a support and mounting carrier for installing other components. The housing 1 includes a first housing and a second housing disposed on the side wall of the first housing. The first housing is cylindrical, and the second housing is also cylindrical, angled backwards on the side wall of the first housing, with an included angle of 75-80 degrees. The second housing serves as a handheld part 12 for hand operation, forming a structure similar to a hair dryer. The front end of the first housing is a working surface for contacting the glass of the water meter and transmitting vibrations to the water meter. In this embodiment, a cylindrical boss 13 is provided at the front end of the first housing 1, coaxially arranged with the first housing, and its end face forms the working surface 131. To avoid rigid contact with the water meter glass and damage to the glass, a rubber layer is provided on the working surface, which contacts the glass surface to protect the water meter. The housing (including the first and second housings) is hollow, forming an installation cavity, within which a vibration mechanism and a battery are installed.

[0041] The vibration mechanism includes a drive motor 3, a slider 21, and an eccentric connection assembly 4. The slider 21 is slidably fitted inside the housing 1, and the sliding direction of the slider 21 is perpendicular to the plane where the working surface is located. The drive motor is connected to the slider 21 through the eccentric connection assembly and is used to drive the slider 21 to reciprocate in a direction perpendicular to the working surface 131, thereby generating vibration. Specifically, the drive motor 3 is fixed inside the housing 1 by a motor bracket 31. The lower end of the drive motor 3 is located inside the second housing, and the upper output shaft end is located inside the first housing. The axis of the drive motor 3 intersects the axis of the first housing. The eccentric connection assembly 4 includes an eccentric shaft 41 and a connecting rod 42. The eccentric shaft 41 is generally cylindrical. The structure is sleeved on the output shaft of the drive motor 3 and fixed by bolts, enabling radial and axial fixation. A first connecting shaft 411 is provided at the end of the eccentric shaft 41. This first connecting shaft 411 is parallel to the output shaft of the drive motor and is eccentrically positioned, meaning it is parallel to but not aligned with the output shaft of the drive motor, with a certain distance between them, creating eccentricity. This distance determines the sliding range (stroke) of the slider. When the drive motor rotates, the first connecting shaft can rotate around the output shaft of the drive motor. The connecting rod 42 is rod-shaped, with its head hinged to the first connecting shaft 411, i.e., rotatably mounted on the first connecting shaft. To improve operational stability and reduce... The low-friction component is rotatably mounted on the first connecting shaft via a bearing, while the tail of the connecting rod 42 is hinged to the slider 21, i.e., rotatably mounted on the slider 21. In this embodiment, a guide sleeve 22 is fixed inside the housing 1. The guide sleeve 22 is located at the front end of the first housing, and the axis of the guide sleeve 22 is perpendicular to the working surface 131. The guide sleeve 22 is a cylindrical structure, and the slider 21 is a cylindrical structure that slides within the guide sleeve 22. To reduce the friction generated by the reciprocating motion, reduce energy consumption, avoid wear, and extend service life, a sliding bearing is provided on the inner wall of the guide sleeve 22. The sliding bearing is a cylindrical structure, and the slider slides within the sliding bearing. The sliding bearing is made of a lubricating material. In this embodiment, the sliding bearing is made of copper and has several recessed holes on its inner wall. Graphite is filled in these recessed holes for self-lubrication. A connecting seat 24 is fixed at the rear end of the slider 21. A second connecting shaft 241 is provided on the connecting seat 24. The second connecting shaft 241 is parallel to the first connecting shaft 411. The end of the connecting rod is rotatably mounted on the second connecting shaft via a bearing, thereby enabling the drive motor to reciprocate the slider. To improve the vibration force and effect, a counterweight 23 is provided inside the slider 21. This counterweight is also cylindrical and coaxial with the slider 21. It is used to increase the weight, thereby increasing the inertia of the slider and improving the vibration force.

[0042] To further enhance the vibration effect, in this embodiment, a resonant spring 65 is provided inside the housing 1. The axis of the resonant spring 65 is parallel to the sliding direction of the slider 21 and is located at the rear end of the housing. The resonant spring 65 can resonate with the slider, thereby improving the vibration effect. In this embodiment, a mounting bracket 61 is provided inside the housing 1. The mounting bracket is located at the rear end of the motor. A mounting seat 62 is fixed on the mounting bracket. A shaft is provided at the end of the mounting seat 62. The shaft is cylindrical and its axis is parallel to the sliding direction of the slider. In this embodiment, the shaft is coaxial with the first housing. A spring seat 64 is slidably mounted on the shaft. Therefore, the spring seat can slide in a direction parallel to the axis of the first housing. At the same time, a thread is provided at the end of the shaft, and a limiting seat 63 is threadedly connected to the end of the shaft. The limiting seat 63 is used to axially limit the spring seat. The resonant spring 65 is disposed between the mounting base 62 and the spring seat 64. The resonant spring causes the spring seat 64 to tend to move closer to the limiting seat. Meanwhile, a lever 66 is provided on the housing. The lever is used to rotate the limiting seat 63, causing it to move axially, thereby adjusting the compression of the resonant spring. It can adjust the resonant frequency of the resonant spring and the slider, thereby enhancing the resonant frequency.

[0043] To further improve assembly efficiency and effectiveness and fully remove air bubbles from the water meter counter, this application also provides an ultrasonic generator 7 in the housing. The transmitting end of the ultrasonic generator 7 faces the working surface 131 and is used to create a cavitation effect on the water inside the water meter during assembly, so that air is discharged from the water meter.

[0044] A battery 5 is installed inside the housing. The battery is located in the second housing and below the drive motor, serving as the overall power source. The battery is rechargeable, so a charging interface is provided on the side wall of the housing, and a rubber plug is provided on the charging interface to improve the sealing. A switch 14 is provided on the side wall of the housing, and a circuit board is provided inside the housing. The drive motor, battery, switch, and ultrasonic generator are all electrically connected to the circuit board. The drive motor and ultrasonic generator are controlled by the switch, which can control the start, stop, and speed adjustment of the drive motor.

[0045] Since the water filling device of this portable liquid-sealed water meter is used in water, the housing 1 is an overall sealed and waterproof structure, which is achieved by setting a sealing ring and a sealing gasket to prevent water from entering the interior.

[0046] Meanwhile, the present invention also provides a method for filling a liquid-sealed water meter, which includes the following steps:

[0047] S1. Assemble the water meter movement into the water meter case, and screw the ring cover used to fix the movement onto the case, but do not tighten it. Specifically, during assembly, assemble the water meter movement into the water meter case, and screw the ring cover used to fix the movement onto the case. Tighten the ring cover and case by hand for a few threads, usually 1-5 threads, to ensure that the two are connected and do not fall off. That is, do not tighten it, leaving a gap between the edge of the ring cover and the counter to allow gas to escape.

[0048] S2. Immerse the water meter in a water tank with flowing water, with the counting end of the water meter facing upwards, and clamp it in place using a clamp.

[0049] S3. Handheld portable liquid-sealed water meter filling device: Place its working surface in contact with the glass on the water meter, turn on the switch, and drive the motor to drive the slider to move back and forth through the eccentric connection component. The resulting vibration impacts the glass surface of the water meter, causing the water meter to vibrate as a whole, and expelling the internal air from the gaps along the edge of the ring cover.

[0050] S31. The ultrasonic generator can be turned on selectively. The ultrasonic generator transmits ultrasonic energy into the water meter in the direction of the working surface, causing the air bubbles in the water meter counter to expand in volume due to the cavitation effect of the ultrasonic waves, and to be discharged from the water meter under the action of vibration and water flow.

[0051] S4. Wait for a while. When no more bubbles emerge from the water meter, it means that the internal air has been completely removed. Tighten the water meter ring and water meter casing manually or mechanically using a special tool.

[0052] S5. Remove the assembled water meter from the water tank, drain the water from its interior, and place it in the material area.

[0053] S7. Assembly complete.

[0054] This invention relates to a portable liquid-sealed water meter filling device. It features a handheld structure, is compact and small in size, making it easy and labor-saving to carry. A slider structure generates reciprocating motion and vibration, producing a high-speed impact on the water meter casing. This vibration expels air bubbles from the water meter counter, resulting in high impact frequency, high air venting efficiency, and excellent effect, significantly improving assembly efficiency and product quality. A counterweight structure increases the slider's mass, enhancing vibration force and thus the impact force on the water meter, further improving air venting. This counterweight also contributes to the overall miniaturization of the structure. An adjustable resonant spring adjusts the resonance frequency between the spring and the slider, enhancing the resonance frequency and improving performance. An ultrasonic generator transmits ultrasonic energy into the water meter, causing air bubbles in the counter to expand due to the ultrasonic cavitation effect. These bubbles are then expelled from the water meter under the influence of vibration and water flow, resulting in a small volume and further improving assembly quality. This portable liquid-sealed water meter filling device and its filling method are compact, small in size, easy to use, and effective, significantly improving assembly efficiency and product qualification rate.

[0055] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method of filling a liquid-sealed water meter, comprising: The method comprises the following steps: S1, assembling the meter core into the meter shell of the water meter, and screwing the ring cover for fixing the meter core to the meter shell without tightening; S2, immersing the water meter into a water tank with flowing water, with the counting end of the water meter facing upwards, and fixing the water meter by a clamp; S3, holding the portable liquid-sealed water meter water filling device, and opening it after the working surface thereof is in contact with the glass of the water meter, so that the motor drives the slider to reciprocate through the eccentric connecting assembly, the vibration generated thereby impacts the glass surface of the water meter, the whole water meter vibrates and the air inside the water meter is discharged; S31, optionally opening the ultrasonic generator, the ultrasonic generator transmits ultrasonic energy into the water meter in the direction of the working surface, so that the bubbles in the counter of the water meter are subjected to the cavitation effect of the ultrasonic wave and expand in volume, and are discharged from the water meter under the action of vibration and / or water flow; S4, when no bubbles come out of the water meter, tightening the ring cover and the meter shell of the water meter by a special tool manually or using a mechanical device; S5, taking out the assembled water meter from the water tank, and placing it in the material area after the water inside the water meter is discharged; S6, completing the assembly.

2. The method of claim 1, wherein: The portable liquid-sealed water meter water filling device comprises: a shell serving as a support and installation carrier, a hand holding portion for hand holding being arranged on the shell, and a working surface for contacting the water meter being arranged at the front end of the shell; a vibration mechanism installed in the shell, comprising a driving motor, an output end of the driving motor being connected with a slider slidingly fitted in an installation cavity through an eccentric connecting assembly, and the slider being driven to reciprocate in a direction perpendicular to the working surface and generate vibration; a battery arranged in the shell and electrically connected with the driving motor through a circuit board; a switch arranged on the side wall of the shell, the switch being electrically connected with the circuit board and used for controlling the driving motor.

3. The method of claim 2, wherein: The eccentric connecting assembly comprises an eccentric shaft and a connecting rod, the eccentric shaft being fixed at the output end of the driving motor, a first connecting shaft parallel to the output shaft of the driving motor being arranged eccentrically on the eccentric shaft, the head of the connecting rod being hinged on the first connecting shaft, and the tail of the connecting rod being hinged on the slider.

4. The method of claim 3, wherein: A guide sleeve is fixed in the shell, the axis of the guide sleeve being perpendicular to the working surface, the slider being slidingly fitted in the guide sleeve, and an end portion of the slider being fixed with a connecting seat, the connecting seat being provided with a second connecting shaft parallel to the first connecting shaft and used for hinging with the connecting rod.

5. The method of claim 2, wherein: A counterweight is arranged in the slider for increasing weight and improving inertia.

6. The method of claim 2, wherein: A resonance spring parallel to the sliding direction of the slider is arranged in the shell, and the resonance spring is located at the rear end of the shell.

7. The method of claim 6, wherein: The shell is internally provided with a mounting seat located at the rear end of the vibration mechanism, the side wall of the mounting seat is provided with an axle body parallel to the sliding direction of the slider, a spring seat is slidably arranged on the axle body, the end of the axle body is threadedly connected with a limiting seat for limiting, the resonance spring is arranged between the mounting seat and the spring seat and has a movement tendency of moving the spring seat to the limiting seat, and the shell is provided with a dial lever for dialing the limiting seat to rotate to realize axial movement and adjust the compression amount of the resonance spring.

8. The method of claim 2, wherein: The shell is internally provided with an ultrasonic wave generator facing the working surface and used for forming cavitation effect on water in the water meter during assembly to discharge air from the water meter.

9. The method of claim 2, wherein: The shell comprises a cylindrical first shell and a second shell arranged on the side wall of the first shell, and the second shell forms the hand-held part.

10. The method of claim 2, wherein: The front end of the shell is provided with a cylindrical boss, and the end face of the boss forms the working surface.

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