Anti-freezing remote water meter
By designing the air pressure regulation of the cover, bottom shell assembly, and piston rod, the problems of heat conduction and icing maintenance of antifreeze remote water meters in low-temperature environments have been solved, realizing stable operation and convenient maintenance of water meters, and improving metering accuracy and the reliability of water supply systems.
Patent Information
- Application Number
- CN202520262138.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2035-02-19
AI Technical Summary
Existing antifreeze remote water meters cannot effectively block heat conduction in low-temperature environments, and are difficult to disassemble and repair in freezing conditions, affecting metering accuracy and the stability of the water supply system.
An external assembly comprising a cover and a bottom shell was designed, equipped with a detachable housing and piston rod. By regulating air pressure, heat conduction is reduced and ice removal is facilitated, ensuring stable operation and convenient maintenance of the water meter in low-temperature environments.
It effectively blocks heat conduction, improves the stability and reliability of water meters in low-temperature environments, ensures metering accuracy, and allows for quick disassembly and maintenance when the water freezes, ensuring the continuity of the water supply system.
Smart Images

Figure CN223551141U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of water meter technology, and more specifically, it relates to an antifreeze remote water meter. Background Technology
[0002] As a key instrument for accurately measuring users' water consumption, remote water meters have a wide and indispensable application in many fields such as residential buildings, commercial buildings, and industrial water use. Their core water flow measurement function provides strong support for the rational management of water resources and accurate cost accounting. However, in cold regions or winter low-temperature conditions, the normal use of remote water meters faces significant challenges. In view of this, at present, the common practice is to install an outer casing on the water meter to achieve the purpose of antifreeze.
[0003] However, a thorough analysis of existing technologies reveals several significant shortcomings in current antifreeze remote water meters: Firstly, although a protective casing is installed on the outside of the water meter, the internal air pressure is in equilibrium with the external natural air pressure, failing to establish an effective pressure barrier mechanism. Consequently, in low-temperature environments, heat exchange easily occurs between the outside cold air and the air inside the casing due to thermal conduction. This allows cold air to freely penetrate the casing, causing critical internal components to be continuously subjected to low temperatures. This severely weakens the overall antifreeze performance and greatly increases the potential risk of internal component malfunctions due to freezing, negatively impacting the meter's accuracy and lifespan. Secondly, when… When severe cold weather causes ice to form on the outside of the water meter, due to a design flaw in the existing casing, it becomes tightly bonded to the meter body and freezes into one piece at low temperatures. Before the ice completely melts, it is impossible to safely and easily remove the casing from the water meter. This situation directly obstructs timely maintenance and repair work during winter. If the water meter malfunctions during winter operation, the obstruction of the casing prevents maintenance personnel from quickly approaching and troubleshooting the problem. This not only leads to a temporary interruption in water usage data recording but also potentially causes water disputes due to delayed repairs, causing considerable inconvenience and economic losses for both users and water supply companies, and seriously affecting the stability and reliability of the water supply system. Utility Model Content
[0004] In summary, given the aforementioned drawbacks of existing antifreeze remote water meters, there is an urgent need to develop new types of remote water meters and their associated protective devices that feature innovative design concepts, effectively block heat conduction, and facilitate rapid disassembly and maintenance in low-temperature environments. This will ensure that remote water meters can stably, accurately, and continuously perform their metering functions even in cold and harsh environments, thus guaranteeing the smooth operation of the water supply system.
[0005] The first aspect of this disclosure provides an antifreeze remote water meter, achieved through the following specific technical means:
[0006] A freeze-resistant remote water meter includes:
[0007] The main component includes a body and a display area. The body is cylindrical in shape. The display area is located at the top of the body. An external component is provided on the main component. The cover of the external component is fastened to the upper part of the body, and the bottom shell of the cover covers the lower part of the body. The cover and the bottom shell enclose the outer pipe of the body. A sealing gasket is provided at the contact position between the cover and the bottom shell and the outer pipe. A top component is provided on the external component. The housing of the top component is located at the top of the cover, and the inner groove inside the housing is connected to the connecting hole on the cover. The detection contact of the pressure gauge on the outside of the housing extends into the interior of the cover.
[0008] According to some solutions of this utility model, the main component includes: an interface and an outer pipe; the interface is located on both sides of the exterior of the main body, and the interface is provided with external threads; the outer pipe is installed on the outer end of the interface through the external threads.
[0009] According to some solutions of this utility model, the external components include: a cover and a bottom shell; the upper end of the cover is provided with a transparent observation port, and the inner side of the cover is sprayed with heat insulation material; the bottom shell is assembled at the lower end of the cover, and a sealing gasket is provided at the position where the bottom shell contacts the cover, and the inner side of the bottom shell is sprayed with heat insulation material.
[0010] According to some solutions of this utility model, the external component includes: ear plates and connecting holes; the ear plates are equidistantly arranged on both sides of the outer end of the cover and the bottom shell; the connecting holes are opened at the upper end of the cover.
[0011] According to some embodiments of this utility model, the top component includes: a housing and a pressure gauge; the housing has a columnar structure; the pressure gauge is fixedly mounted on the housing, and the detection contact of the pressure gauge is located at the lower end of the housing.
[0012] According to some embodiments of this utility model, the top assembly includes: an inner groove and a piston rod; the inner groove is formed inside the housing; the piston rod is threaded into the inner groove.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. This device innovatively features external and top components. A meticulously designed and assembled combinable cover and bottom shell are fitted around the main body, tightly enveloping it from all sides. Its unique structure provides excellent airtightness. The shell is securely mounted outside the connecting hole at the top of the cover, while a movable piston rod is cleverly placed within the inner groove of the shell. During actual use, by manipulating the piston rod, a portion of the gas inside the cover can be precisely drawn into the inner groove, thus achieving active control of the internal air pressure. When the internal air pressure decreases, the gas density decreases accordingly, significantly reducing the frequency of collisions and the flow activity between air molecules. Since heat conduction relies on the thermal motion of molecules, atoms, and other microscopic particles, the pressure reduction operation drastically reduces the number of molecules involved in heat conduction, effectively weakening the heat conduction effect at its source. This creates a good anti-freezing and heat-insulating environment for the water meter, greatly improving its stability and reliability in low-temperature environments.
[0015] 2. The specially designed top component of this device plays a crucial role. It precisely installs the housing on the outside of the main body and flexibly assembles the piston rod within the inner groove of the housing, creating an efficient emergency response mechanism. When severe cold weather causes the housing to freeze on the main body, the operator can easily move the piston rod to quickly increase the internal pressure of the housing. As the pressure continues to rise, the internal structure of the ice undergoes drastic changes under pressure, causing the connections between ice crystals to loosen and break. Ultimately, the frozen housing can be easily and conveniently removed from the main body, effectively solving the problem of traditional water meters being difficult to repair in winter due to freezing. This ensures the maintainability of the water meter during low-temperature periods in winter and guarantees that water supply metering is not affected. Attached Figure Description
[0016] The advantages of this disclosure will be better understood by those skilled in the art through the accompanying drawings. The drawings described herein are for illustrative purposes only and do not represent all possible implementations and are not intended to limit the scope of this disclosure.
[0017] In the attached diagram:
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0019] Figure 2 This is an exploded view of this utility model.
[0020] Figure 3 This is a diagram showing the internal structure of this utility model.
[0021] Figure 4 This is a schematic diagram of the connection structure between the external component and the top component of this utility model.
[0022] Figure 5 This is a cross-sectional view of the top component of this utility model.
[0023] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0024] 1. Main components;
[0025] 101. Main body; 1011. Display area;
[0026] 102. Interface; 103. External connector;
[0027] 2. External components;
[0028] 201. Cover; 2011. Bottom shell;
[0029] 202. Ear plate; 203. Connecting hole;
[0030] 3. Top component;
[0031] 301, housing; 3011, pressure gauge;
[0032] 302, inner groove; 3021, piston rod. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0034] Example 1: As shown in the attached document Figure 1 To be continued Figure 5 As shown:
[0035] This utility model provides an antifreeze remote water meter, comprising: a main body component 1; the main body component 1 includes a body 101 and a display area 1011, the body 101 being cylindrical in shape; the display area 1011 being located at the upper end of the body 101; an external component 2 is provided on the main body component 1, the cover 201 of the external component 2 being fastened to the upper outer end of the body 101, and the bottom shell 2011 of the cover 201 covering the lower outer end of the body 101, and the cover 201 and the bottom shell 2011 enclosing the outer connecting pipe 103 of the body 101, with sealing gaskets provided at the contact positions between the cover 201 and the bottom shell 2011 and the outer connecting pipe 103; a top component 3 is provided on the external component 2, the housing 301 of the top component 3 being located at the upper end of the cover 201, and the inner groove 302 inside the housing 301 communicating with the connecting hole 203 on the cover 201, and the detection contact on the pressure gauge 3011 outside the housing 301 extending into the interior of the cover 201.
[0036] As a second embodiment of this application, based on embodiment one, such as Figure 2 and 3 As shown, the main component 1 includes: interface 102 and external pipe 103; interface 102 is located on both sides of the outside of the main body 101, and external threads are provided on interface 102; external pipe 103 is installed on the outer end of interface 102 through external threads.
[0037] This application includes a main body 101 for monitoring water flow and transmitting water flow and other information to a terminal via a built-in remote transmission device; a display area 1011 for obtaining water flow monitoring information from the main body 101; an interface 102 for connecting the main body 101 to an external pipe 103; and an external pipe 103 for transporting water.
[0038] As a third embodiment of this application, based on embodiment one, as follows: Figures 2 to 4 As shown, the external component 2 includes: a cover 201 and a bottom shell 2011; the upper end of the cover 201 is provided with a transparent observation port, and the inner side of the cover 201 is sprayed with heat insulation material; the bottom shell 2011 is assembled at the lower end of the cover 201, and a sealing gasket is provided at the contact position between the bottom shell 2011 and the cover 201, and the inner side of the bottom shell 2011 is sprayed with heat insulation material; ear plates 202 and connecting holes 203; the ear plates 202 are equidistantly arranged on both sides of the outer end of the cover 201 and the bottom shell 2011; the connecting holes 203 are opened at the upper end of the cover 201.
[0039] The cover 201 and the bottom shell 2011 are provided to protect the body 101 by assembling the cover 201 and the bottom shell 2011 to the outer end of the body 101. The ear plate 202 is provided to fix the cover 201 and the bottom shell 2011 after they are assembled by bolts and nuts. The connecting hole 203 is provided to connect the inside of the cover 201 to the inner groove 302 of the housing 301 through the connecting hole 203.
[0040] As a fourth embodiment of this application, based on embodiment one, as follows: Figure 4 and 5 As shown, the top component 3 includes: a housing 301 and a pressure gauge 3011; the housing 301 has a columnar structure; the pressure gauge 3011 is fixedly installed on the housing 301, and the detection contact of the pressure gauge 3011 is located at the lower end of the housing 301; an inner groove 302 and a piston rod 3021; the inner groove 302 is opened inside the housing 301; the piston rod 3021 is installed in the inner groove 302 by threads.
[0041] This application provides a housing 301, with an inner groove 302 inside the housing 301; a pressure gauge 3011 is provided for detecting the internal pressure of the cover 201; a circular inner groove 302 is provided so that a piston rod 3021 can be movably installed into the housing 301 through the inner groove 302; after the housing 301 is installed onto the cover 201, the air pressure inside the cover 201 can be adjusted by pulling the piston rod 3021.
[0042] The specific usage and function of this embodiment are as follows:
[0043] In the actual operation process of this utility model, such as Figures 1 to 5As shown, firstly, connect the two ends of the main body 101 to the external water supply pipe 103. Specifically, a stable connection is achieved through the interfaces 102 provided at both ends of the main body 101, ensuring the sealing and stability of the connection to guarantee smooth water flow. Next, tightly fasten the bottom shell 2011 to the bottom outer side of the main body 101. During operation, ensure that the bottom shell 2011 fits tightly against the main body 101. Then, precisely fasten the cover 201 to the upper outer side of the main body 101, again ensuring the cover 201's compatibility with the main body 101 so that it fully covers the key upper parts of the main body 101. Next, use bolts to secure the ear plates 202 on the same side of the cover 201 and the bottom shell 2011. This method ensures that the cover 201 and the bottom shell 2011 achieve a stable assembly at the outer end of the main body 101, forming a closed and reliable protective unit that effectively resists the attack of the low-temperature environment on the water meter body. Finally, install the housing 3... 01. Precisely install the pressure gauge 3011 onto the connection hole 203 at the upper end of the cover 201, ensuring accurate installation and a secure connection. Properly install the pressure gauge 3011 onto the housing 301, allowing the detection contact at the lower end of the pressure gauge 3011 to smoothly and accurately extend into the interior of the cover 201, enabling real-time monitoring of the pressure inside the cover 201 and providing crucial data support for the stable operation of the system. Finally, flexibly and precisely install the piston rod 3021 into the interior of the housing 301 through the inner groove 302. After installation, manipulate the piston rod 3021 to move it, using a clever gas suction principle to smoothly introduce a portion of the gas inside the cover 201 into the housing 301, thereby successfully reducing the gas pressure inside the cover 201. Based on the principle of heat conduction, the reduced gas pressure decreases the number of molecules participating in heat conduction, thus weakening the heat conduction effect and ultimately achieving efficient antifreeze and heat preservation, effectively ensuring the water meter can operate stably and accurately in low-temperature environments.
[0044] The foregoing disclosure provides illustrations and descriptions, but is not intended to be exhaustive or to limit the embodiments to the precise forms disclosed. Modifications and variations can be made based on the above disclosure, or modifications and variations can be derived from the practice of the embodiments.
[0045] Even though specific combinations of features are recited in the claims or disclosed in the specification, these combinations are not intended to limit the disclosure of various embodiments. In fact, many of these features can be combined in ways not specifically recited in the claims and / or not specifically disclosed in the specification. Although each dependent claim listed below may depend directly on only one claim, the disclosure of various embodiments includes each dependent claim in combination with every other claim in the claim set.
Claims
1. A freeze-resistant remote water meter, comprising: Main component (1); the main component (1) includes a body (101) and a display area (1011), the body (101) is cylindrical in shape; the display area (1011) is located at the upper end of the body (101); characterized in that the main component (1) is provided with an external component (2), the cover (201) of the external component (2) is fastened to the upper outer part of the body (101), and the bottom shell (2011) outside the cover (201) covers the lower outer part of the body (101), and the cover (201) and the bottom shell (2011) are connected. 011) An outer tube (103) is wrapped around the outside of the main body (101). A sealing gasket is provided at the contact position between the cover (201) and the bottom shell (2011) and the outer tube (103). A top component (3) is provided on the external component (2). The housing (301) of the top component (3) is located at the upper end of the cover (201). The inner groove (302) inside the housing (301) is connected to the connecting hole (203) on the cover (201). The detection contact on the pressure gauge (3011) outside the housing (301) extends into the interior of the cover (201).
2. The antifreeze remote water meter according to claim 1, characterized in that, The main component (1) includes: an interface (102) and an outer pipe (103); the interface (102) is located on both sides of the exterior of the main body (101), and the interface (102) is provided with external threads; the outer pipe (103) is installed on the outer end of the interface (102) through external threads.
3. The antifreeze remote water meter according to claim 1, characterized in that, The external component (2) includes: a cover (201) and a bottom shell (2011); the upper end of the cover (201) is provided with a transparent observation port, and the inner side of the cover (201) is sprayed with heat insulation material; the bottom shell (2011) is assembled at the lower end of the cover (201), and a sealing gasket is provided at the position where the bottom shell (2011) contacts the cover (201), and the inner side of the bottom shell (2011) is sprayed with heat insulation material.
4. The antifreeze remote water meter according to claim 3, characterized in that, The external component (2) includes: ear plates (202) and connecting holes (203); the ear plates (202) are equidistantly arranged on both sides of the outer end of the cover (201) and the bottom shell (2011); the connecting holes (203) are opened at the upper end of the cover (201).
5. The antifreeze remote water meter according to claim 1, characterized in that, The top component (3) includes: a housing (301) and a pressure gauge (3011); the housing (301) is a columnar structure; the pressure gauge (3011) is fixedly installed on the housing (301), and the detection contact of the pressure gauge (3011) is located at the lower end of the housing (301).
6. The antifreeze remote water meter according to claim 5, characterized in that, The top assembly (3) includes an inner groove (302) and a piston rod (3021); the inner groove (302) is formed inside the housing (301); the piston rod (3021) is threaded into the inner groove (302).