Anti-freezing device for water meter and pipe valve

Abstract

The utility model relates to an anti-freezing device for a water meter and a pipe valve, and belongs to the technical field of water pipe instruments. The device comprises a cylindrical compressible elastic ring with a through hole in the middle, the compressible elastic ring is sleeved with an elastic ring sleeve, the elastic ring sleeve is cylindrical, a cylindrical cavity matched with the compressible elastic ring in size is formed in the elastic ring sleeve, holes are formed in the two ends of the elastic ring sleeve, and threads are arranged in the holes and used for being connected with a water pipe connecting pipe and equipment needing freezing prevention. The device does not need to modify a water meter and a pipe valve body, and can be mounted on two sides of the water meter and the pipe valve to remarkably improve the anti-freezing performance.

Description

Technical Field

[0001] This utility model relates to an antifreeze device for water meters and pipe valves, belonging to the field of water pipe instrument technology. Background Technology

[0002] In northern my country, winter temperatures drop sharply, causing water in water meters, valves, and pipes to freeze easily. This often leads to problems such as cracked water meter casings and frozen pipes and valves, which not only affect residents' normal water use but also waste water resources and increase maintenance costs.

[0003] While some insulation measures exist in existing technologies, such as wrapping with insulation materials, these methods often have limited effectiveness and are insufficient to prevent damage to water meters and valves. Furthermore, some water meters and valves employ built-in or external heating elements in their anti-freezing designs to maintain the internal water temperature above freezing, thus preventing icing. However, this method not only increases manufacturing costs and energy consumption but also significantly reduces its anti-freezing effect when the power supply is unstable. Patent CN 216815627 U discloses a temperature alarm anti-freezing water meter, comprising: a body including an upper cavity and a lower cavity, with a partition between the upper and lower cavities. An impeller shaft penetrates the partition, and an elastic ring is provided on the side wall of the lower cavity, which is connected to the partition via the elastic ring. While the elastic ring at the connection between the wall and the partition provides anti-freezing, this structure has limited buffering effect and requires gas filling, making it unsatisfactory for severe icing or large water volumes. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide an antifreeze device for water meters and pipe valves.

[0005] The technical solution adopted in this utility model is as follows:

[0006] An antifreeze device for water meters and pipe valves includes a cylindrical compressible elastic ring with a through hole in the middle, an elastic ring sleeve fitted outside the compressible elastic ring, the elastic ring sleeve being cylindrical, and having a cylindrical cavity inside the elastic ring sleeve that matches the size of the compressible elastic ring, with holes at both ends and threads inside the holes for connecting water pipes and equipment requiring antifreeze.

[0007] The equipment requiring freeze protection includes water meters, pipes, and valves.

[0008] The elastic sleeves are installed on both sides of the equipment requiring frost protection, close to the equipment.

[0009] The compressible elastic ring is made of high-strength, low-temperature resistant elastic material, including but not limited to silicone or special synthetic rubber. It can be made into an airbag form. When uncompressed, its volume is the same as that of the cylindrical cavity of the elastic ring sleeve. It can be squeezed and effectively compressed when it expands in volume due to freezing at low temperatures, ensuring that it can still maintain good elasticity and sealing at low temperatures.

[0010] The size of the compressible elastic ring and elastic ring sleeve can be adjusted according to the actual water volume of the water meter and pipe valve. If the water volume of the water meter and pipe valve is large, a larger compressible elastic ring and elastic ring sleeve can be used.

[0011] When the outside temperature is below 0 degrees Celsius, the water inside the water meter and valve freezes and expands, causing the compressible elastic ring to be compressed and its volume reduced due to the freezing effect. Because the compressible elastic ring is close to the water meter and valve, it can absorb and disperse the pressure generated by the expansion of water due to freezing, thereby preventing the ice from directly breaking the water meter casing, water pipe, or valve, ensuring the safe operation of the water meter and valve in low-temperature environments.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] (1) The device does not require modification of the water meter and valve body. It can significantly improve the antifreeze performance by installing it on both sides of the water meter and valve, and also avoids the interference of installing antifreeze components inside the water meter with the operation of the measuring components inside the water meter.

[0014] (2) The size of the compressible elastic ring and the elastic ring sleeve can be adjusted according to the actual water volume of the water meter and pipe valve. It can also be used when the water volume is large.

[0015] (3) The device is simple in design and easy to install. It is suitable for water meters and valves of various models and specifications, and is easy to disassemble and replace, effectively reducing maintenance costs. Attached Figure Description

[0016] Figure 1 This is an exploded view of the main components of this utility model;

[0017] Figure 2 This is a schematic diagram of the assembly structure of the main components of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the present invention after installation (taking a water meter as an example);

[0019] Figure 4 This is a schematic diagram of the structure of the present invention at low temperatures;

[0020] In the diagram: 1. Elastic ring sleeve; 2. Compressible elastic ring; 3. Cylindrical cavity; 4. Water pipe connection pipe; 5. Connection pipe for equipment requiring antifreeze; 6. Water meter. Detailed Implementation

[0021] The present invention will now be described clearly and completely with reference to the accompanying drawings.

[0022] like Figure 1 , 2 An antifreeze device for water meters and pipe valves includes a cylindrical compressible elastic ring 2 with a through hole in the middle, and an elastic ring sleeve 1 sleeved on the outside of the compressible elastic ring 2. The elastic ring sleeve 1 is cylindrical and has a cylindrical cavity 3 that matches the size of the compressible elastic ring 2. It has holes at both ends and threads inside the holes for connecting water pipe connecting pipe 4 and the equipment that needs to be protected from freezing.

[0023] The compressible elastic ring 2 is made of high-strength, low-temperature resistant elastic material, including but not limited to silicone or special synthetic rubber. It can be made into an airbag form. When uncompressed, its volume is the same as that of the cylindrical cavity 3 of the elastic ring sleeve 1. It can be squeezed and effectively compressed when it expands in volume due to freezing at low temperatures, ensuring that it can still maintain good elasticity and sealing at low temperatures.

[0024] The elastic sleeve 1 is installed on both sides of the equipment that needs to be protected from freezing, close to the equipment, including water meters, pipes, and valves.

[0025] The size of the compressible elastic ring 2 and the elastic ring sleeve 1 can be adjusted according to the water volume stored in the water meter, pipe, and valve. If the water volume is large, a larger compressible elastic ring 2 and elastic ring sleeve 1 can be used instead.

[0026] Since the density of water is 1 g / cm³ 3 The density of ice is approximately 0.9 g / cm³. 3 Therefore, when a certain mass of water freezes into ice, its volume will expand to about 1.11 times its original size. Based on this principle, a compressible elastic ring 2 and an elastic ring sleeve 1 with appropriate volume can be selected.

[0027] Taking a water meter as an example, the overall structural diagram of this utility model after installation is as follows: Figure 3 As shown.

[0028] One end of the elastic sleeve 1 is connected to the water pipe connecting pipe 4, and the other end is connected to the connecting pipe 5 of the equipment requiring antifreeze. It is installed on both sides of the water meter 6, close to the water meter.

[0029] When the outside temperature is below 0 degrees Celsius Figure 3 The water in the water meter 6 expands due to freezing, and at the same time, the compressible elastic ring 2 in the elastic ring sleeve 1 is compressed by the freezing water, thus reducing its volume. Figure 4As shown. Because the compressible elastic ring 2 is close to the water meter 6, it can release space when the water is frozen, absorb and disperse the pressure generated by the expansion of the water when it freezes, thereby preventing the ice from directly crushing the outer shell of the water meter 6 or other key components, and ensuring the safe operation of the water meter 6 in low-temperature environments.

[0030] The above is a detailed description of the present utility model in conjunction with specific embodiments, and the protection scope of the present utility model is not limited thereto.

Claims

1. An antifreeze device for a water meter and valve, characterized in that, The utility model provides a kind of cylindrical compressible elastic ring including intermediate band hole, compressible elastic ring is covered with elastic ring sleeve outside, elastic ring sleeve is cylindrical, there is the cylindrical cavity that size is matched with compressible elastic ring inside elastic ring sleeve, both ends are opened and threaded inside opening hole is used to connect water pipe connecting pipe and need freeze-proof equipment.

2. A freeze-proof device for a water meter and a pipe valve according to claim 1, characterized in that The need freeze-proof equipment includes water meter, pipeline and valve.

3. The freeze-proofing device for water meter and pipe valve according to claim 1, characterized in that, The elastic ring sleeve is installed on both sides of the need freeze-proof equipment, close to the need freeze-proof equipment.

4. The freeze-proofing device for water meter and pipe valve according to claim 1, characterized in that, The size of the compressible elastic ring and the elastic ring sleeve is adjusted according to the actual water storage volume of the water meter and the pipeline valve.

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