Bubble type anti-freezing water meter

Abstract

The utility model discloses a bubble type anti-freezing water meter which comprises a water meter shell, a water meter metering device and a bubble storage device. The water meter metering device comprises an impeller component, an impeller box and an adjusting plate, the impeller box is erected in the water meter shell and is covered by the adjusting plate, and the impeller component is rotationally arranged in the impeller box; the bubble storage device comprises an impeller cylinder, a pressure-bearing disc and a disc, the pressure-bearing disc is covered with the water meter shell, the disc is pressed between the pressure-bearing disc and the adjusting plate, a bubble cavity is formed between the pressure-bearing disc and the disc, one end of the impeller cylinder is connected with the impeller component, the other end of the impeller cylinder penetrates through the adjusting plate and the disc and extends into the bubble cavity, and a pressure relief hole is formed between the impeller cylinder and the disc. The bubble cavity where the bubbles are located is communicated with the water meter metering channel through the pressure relief hole, and under the normal working condition, water flow is difficult to flow into the cavity where the bubbles are located; at low temperature, in the freezing process of water, part of water flow can be pushed to be pressed into the bubble cavity, the pressure on the whole water meter caused by the expansion volume is reduced, and the water meter cannot be frozen to crack.

Description

Technical Field

[0001] This utility model relates to an air-bubble antifreeze water meter, belonging to the field of water meter technology. Background Technology

[0002] Water meters are important measuring instruments used to measure the monthly water consumption of household users. They are typically installed indoors, in stairwells, or in common building shafts, but can also be installed outdoors, such as in underground meter wells, above-ground meter rooms, or on the exterior walls of buildings. For dry-type water meters, such as... Figure 1 The main components include the water meter housing 1, the metering mechanism, and the counter 5. Water meters with remote transmission capabilities usually also include a communication module, which is assembled with the water meter to form an intelligent remote transmission water meter. The metering mechanism of a dry-type water meter typically includes three main components: a pressure plate 32, an impeller assembly 21, and an impeller box 22. Among these, the pressure plate 32 plays a crucial pressure-bearing role. However, when water freezes and expands or the pressure is too high, the water meter housing and the pressure plate made of engineering plastics may still crack and cause leakage (if the pressure plate...). Figure 2 (As shown).

[0003] To address the issue of water meters easily freezing and cracking below 0°C, a spring-like mechanism is typically installed inside the water meter. Figure 3 For details, please refer to the description in patent number CN117949058A. This design utilizes the compression deformation of a pressure plate and an elastic element to eliminate the increased volume due to water expansion after freezing. The elastic element is a rubber bladder with a cavity. This structure provides anti-freezing protection in the early stages of the water meter's service life. However, over time, with the aging of the rubber material and the chemical effects of the water, the compression effect of the elastic element deteriorates. Simultaneously, water gradually flows into the water meter cavity over time, thus negating its anti-freezing function. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing water meters have poor antifreeze properties or are prone to failure of their antifreeze function after prolonged use.

[0005] To solve the above-mentioned technical problems, this utility model provides a bubble-type antifreeze water meter, which has strong antifreeze ability and the antifreeze ability will not decrease or disappear with the use time.

[0006] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0007] The utility model provides a bubble type anti -freezing water meter, including water meter casing, be provided with water meter metering device and bubble storage device in water meter casing, the water meter metering device includes impeller part, impeller box and adjusting plate, the impeller box is erected in water meter casing and is covered by adjusting plate, and the impeller part is converted in the impeller box, the bubble storage device includes impeller cylinder, pressure -bearing disc and disc, the pressure -bearing disc is covered in water meter casing, and the disc is pressed between pressure -bearing disc and adjusting plate, and the bubble cavity is formed between pressure -bearing disc and disc, one end of impeller cylinder is fixedly connected with impeller part, and the other end of impeller cylinder passes through adjusting plate and disc and extends into the bubble cavity and is formed with pressure relief aperture between disc.

[0008] Preferably, the disc is a body of deformed material, and the pressure relief gap increases or decreases with the change in pressure when the disc is compressed.

[0009] Preferably, the pressure-bearing disc is provided with a receiving groove for receiving the disc, and an annular force relieving groove is formed on one side of the bottom wall of the receiving groove and located outside the outer wall of the disc.

[0010] Preferably, a sealing ring is arranged between the pressure-bearing disc and the water meter casing.

[0011] The bubble type anti-freezing water meter has the following advantages.

[0012] The bubble type anti-freezing water meter has the following advantages. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a conventional dry-type water meter;

[0014] Figure 2 FIG. 2 is a schematic diagram of the structure of a conventional pressure-bearing cover;

[0015] Figure 3 FIG. 3 is a schematic diagram of the structure of an anti-freezing water meter according to the prior art;

[0016] Figure 4The utility model discloses a structure diagram of a bubble type anti-freezing water meter.

[0017] In the drawing,

[0018] 1-water meter shell; 2-water meter measuring device; 21-impeller part; 22-impeller box; 23-adjusting plate; 3-bubble storage device; 31-impeller cylinder; 32-pressure bearing disc; 321-housing groove; 322-ring unloading groove; 33-disc; 331-pressure relief aperture; 4-bubble cavity; 5-counter. DETAILED DESCRIPTION

[0019] The utility model discloses an embodiment of the utility model will be combined with the drawing in the embodiment of the utility model, the technical scheme in the embodiment of the utility model is clearly and completely described, obviously, the described embodiment is only a part of the embodiment of the utility model, but not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor are within the scope of the utility model protection.

[0020] Referring to Figure 4 A bubble type anti-freezing water meter, including water meter shell 1, water meter shell 1 in the coaxial installation has water meter measuring device 2 and bubble storage device 3, water meter measuring device 2 is used to realize the water meter's water consumption measurement function, bubble storage device 3 can be stored in the water meter for eliminating the extrusion pressure of the bubble for eliminating water ice expansion.

[0021] Water meter measuring device 2 includes impeller part 21, impeller box 22 and adjusting plate 23, impeller box 22 is erected in water meter shell 1 and is covered by adjusting plate 23, impeller part 21 is rotated in impeller box 22, when water flows, the rotation of impeller part 21 is driven by the flow of water, so as to achieve the purpose of measurement, adjusting plate 23 is used to adjust the measurement accuracy of water meter, in the embodiment, water meter measuring device 2 is prior art and does not make too much repetition.

[0022] Bubble storage device 3 includes impeller cylinder 31, pressure bearing disc 32 and disc 33, pressure bearing disc 32 is covered in water meter shell 1, disc 33 is pressed between pressure bearing disc 32 and adjusting plate 23, pressure bearing disc 32 and disc 33 are formed with bubble cavity 4, one end of impeller cylinder 31 is inserted and fixed with impeller part 21, the other end of impeller cylinder 31 is coaxially arranged through adjusting plate 23 and disc 33 and extends into bubble cavity 4 and is formed with pressure relief aperture 331 between disc 33, disc 33 is a deformation material body including but not limited to polyurethane material, when disc 33 is pressed, the pressure relief gap increases or reduces with the change of pressure.

[0023] Referring to Figure 4In further embodiments, the pressure-bearing disc 32 is provided with a receiving groove 321 for installing the disc 33 to limit the installation of the disc 33, and an annular stress relief groove 322 is coaxially provided on the bottom wall of the receiving groove 321 at one side of the outer wall of the disc 33, the inner wall of the larger-diameter side of the annular stress relief groove 322 is flush with the inner wall of the receiving groove 321, and when the water meter is in use, if the expansion force of the frozen water presses the disc 33, the middle part of the disc 33 is stressed, and the outer wall side of the disc 33 is also pressed, and after long-term use, a gap is easily generated between the outer wall side of the disc 33 and the inner wall of the receiving groove 321 due to the deformation, which affects the air tightness, and the annular stress relief groove 322 can disperse the pressure on the outer wall side of the disc 33 when the disc 33 is pressed, thereby reducing the deformation.

[0024] Further, the pressure-bearing disc 32 and the water meter housing 1 are embedded and installed with a sealing ring to improve the sealing performance of the connection between the water meter measuring device 2 and the bubble storage device 3.

[0025] The working principle of the bubble type anti-freezing water meter is as follows:

[0026] (1) When the water meter is not installed on the pipeline for use, the inside of the water meter housing 1 is not water-connected, the impeller component 21 does not rotate, and the entire inside of the water meter and the bubble cavity 4 are filled with air;

[0027] (2) When the water meter is installed on the pipeline for use, due to the existence of water pressure, the entire inside of the meter body is filled with water, and the bubbles in the bubble storage device 3 cannot be discharged due to the existence of water pressure and are stored in the bubble cavity 4. At the same time, the water flow in the meter body cannot enter the bubble cavity 4 due to the interaction of the viscosity and water pressure of the water, thereby forming a relatively closed bubble cavity 4;

[0028] (3) In terms of structural design, the disc 33 has the characteristics of extrusion, bendability and deformability, and forms a closed space with the pressure-bearing disc 32 and the impeller cylinder 31, and the impeller cylinder 31 and the disc 33 are kept in a small gap cooperation to ensure that the water flow cannot penetrate;

[0029] (4) When encountering low temperature or extremely cold weather, the water in the meter body will freeze, the freezing of water is a relatively slow process and will gradually freeze inward and to the central area along the surface closer to the outside, and the expansion force generated by the freezing will extrude the disc 33 to deform and protrude upward, thereby increasing the pressure relief gap 331. At this time, the water flow in the meter body will flow into the bubble cavity 4, thereby eliminating the extrusion caused by the volume expansion of the frozen water;

[0030] (5) When the temperature rises, the water melted from the ice in the bubble cavity 4 will flow back to the meter body along the pressure relief gap 331 between the disc 33 and the impeller cylinder 31, and the disc 33 will return to the original state.

[0031] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form or in essence. It should be noted that those skilled in the art can make some improvements and supplements without departing from the present application, and these improvements and supplements should also be considered within the protection scope of the present application. Any equivalent changes, modifications and evolutions made by those skilled in the art based on the disclosed technical content without departing from the spirit and scope of the present application are equivalent embodiments of the present application. Meanwhile, any equivalent changes, modifications and evolutions made based on the essential technology of the present application are still within the scope of the technical solutions of the present application.

Claims

1. A bubble-type frost-proof water meter comprising a water meter housing (1), characterized in that, The water meter housing (1) is provided with a water meter measuring device (2) and a bubble storage device (3); the water meter measuring device (2) comprises an impeller component (21), an impeller box (22) and an adjusting plate (23), the impeller box (22) is erected in the water meter housing (1) and is covered by the adjusting plate (23), and the impeller component (21) is rotated in the impeller box (22); the bubble storage device (3) comprises an impeller cylinder (31), a pressure bearing disc (32) and a disc (33), the pressure bearing disc (32) is covered in the water meter housing (1), the disc (33) is pressed between the pressure bearing disc (32) and the adjusting plate (23), a bubble cavity (4) is formed between the pressure bearing disc (32) and the disc (33), one end of the impeller cylinder (31) is fixedly connected with the impeller component (21), the other end of the impeller cylinder (31) penetrates through the adjusting plate (23) and the disc (33) and extends into the bubble cavity (4) and forms a pressure relief gap (331) with the disc (33).

2. A bubble-type frost-proof water meter according to claim 1, wherein The disc (33) is a deformation material body, when the disc (33) is pressed, the pressure relief gap increases or reduces with the change of pressure.

3. A bubble-type frost-proof water meter according to claim 2 wherein, The pressure bearing disc (32) is provided with a containing groove (321) for arranging the disc (33), an annular force relieving groove (322) is arranged on one side of the bottom wall of the containing groove (321) and located outside the outer wall of the disc (33), and the inner wall of the larger-diameter side of the annular force relieving groove (322) is flush with the inner wall of the containing groove (321).

4. A bubble-type frost-proof water meter in accordance with claim 1 wherein, The pressure bearing disc (32) is provided with a sealing ring.

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