A water meter capable of preventing the dial from cracking

Abstract

The application relates to the technical field of water meter equipment, and provides a water meter capable of preventing dial plate frost cracking, which comprises a water meter body, a containing groove is formed in the water meter body, and a mounting port is formed at one end of the containing groove; a dial core device is arranged in the containing groove, a dial plate is arranged on the dial core device and close to the mounting port, a protective cover is arranged on the dial plate, a buffer abutting ring is sleeved at the circumferential position of the protective cover, and an elastic buffer sealing ring is arranged on the buffer abutting ring; a mounting sealing cover is detachably connected on the mounting port, an observation window is formed at the middle position of the mounting sealing cover, the edge of the observation window forms a first abutting step, and the first abutting step is used for abutting against the elastic buffer sealing ring; and the dial core device is arranged in a floating mode along the direction of the axis of the mounting port. Through the elastic deformation performance of the buffer abutting ring and the elastic buffer sealing ring, the displacement of the dial plate glass caused by the expansion of the water meter due to internal icing can be effectively buffered, and the high pressure is prevented from directly acting on the glass to cause the glass to be deformed or burst.

Description

Technical Field

[0001] This application relates to the field of water meter equipment technology, and in particular to a water meter that can prevent the dial from freezing and cracking. Background Technology

[0002] A water meter is an instrument used to measure water flow, typically based on the cumulative flow. When using a water meter, it is often affected by external factors such as moisture and low temperatures. For example, in cold weather, the water in the meter may be stagnant or frozen. Under standard atmospheric pressure, 1 kg of water has a volume of 1 cubic decimeter, while 1 kg of ice has a volume of 1.09 cubic decimeters. This means that the water inside the meter will freeze and expand at low temperatures, generating significant expansion pressure.

[0003] However, the glass cover of traditional water meters is usually fixed directly above the base meter. This results in insufficient buffer space between the glass cover and the base meter, and the pressure generated by the expansion of water freezing inside the meter acts directly on the glass cover, causing it to bulge, deform, or shatter. This significantly affects the lifespan of the water meter.

[0004] Therefore, the aforementioned technical deficiencies urgently need to be addressed. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this application is to provide a water meter that can prevent the dial from freezing and cracking, so as to prevent the pressure generated by the expansion of water inside the water meter due to freezing in low temperature environment from causing the glass to bulge, deform or burst.

[0006] To address the aforementioned technical problems, a first aspect of this application provides a water meter that can prevent the dial from freezing and cracking, comprising: The water meter body has a receiving groove, and an installation port is provided at one end of the receiving groove; The watch movement assembly is located in the receiving groove. A dial is located on the watch movement assembly near the mounting port. A protective cover is located on the dial. A buffer abutment ring is fitted around the circumference of the protective cover. An elastic buffer sealing ring is located on the buffer abutment ring. The sealing cover is detachably connected to the installation port. An observation window is provided in the middle of the sealing cover so that the edge of the observation window forms a first abutting step. The first abutting step is used to abut against the elastic buffer sealing ring. The elastic buffer sealing ring is used to buffer the protective cover and seal so that the receiving groove forms a closed cavity. The watch movement assembly is floating along the axis of the mounting port.

[0007] In one possible implementation, a limiting protrusion is provided on the inner sidewall of the buffer abutment ring. The limiting protrusion protrudes around the inner circumference of the buffer abutment ring and protrudes from the upper surface of the buffer abutment ring along the height direction, so that a limiting step is formed between the limiting protrusion and the buffer abutment ring. The limiting step is used to accommodate the elastic buffer sealing ring.

[0008] In one possible implementation, the limiting step matches the elastic buffer sealing ring, and at least one buffer notch is provided on the side wall of the limiting protrusion. The diameters of the limiting protrusion and the buffer abutment ring are changed by the contraction or expansion of the buffer notch.

[0009] In one possible implementation, the buffer notch extends to one side of the buffer abutment ring.

[0010] In one possible implementation, the watch movement device further includes at least a cylindrical shell, and at least one limiting connector is provided on the lower surface of the buffer abutment ring. A connector groove is provided on the cylindrical shell at the position corresponding to the limiting connector, and the connector matches the connector groove.

[0011] In one possible implementation, both the buffer abutment ring and the limiting connector are integrally formed with the limiting protrusion ring.

[0012] In one possible implementation, the sealing cover is an annular structure, and the protective cover is a disc-shaped protective cover.

[0013] In one possible implementation, the water meter body is also provided with an inlet port and an outlet port, both of which are connected to the receiving groove.

[0014] In one possible implementation, the side wall of the mounting cover is provided with mounting threads, which are arranged around the circumference of the mounting cover, and the mounting cover is screwed onto the mounting port by the mounting threads.

[0015] Compared with existing technologies, this application provides a water meter that can prevent the dial from freezing and cracking. When the inside of the water meter freezes and expands due to low temperatures, the dial glass (protective cover) will be pushed outward by the internal expansion pressure. This utility model effectively buffers the displacement of the dial glass caused by the expansion of ice inside the water meter by using the elastic deformation performance of the buffer abutment ring and the elastic buffer sealing ring set above the dial glass, preventing the pressure generated by the expansion from acting directly on the glass and causing the glass to bulge, deform, or crack. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a water meter that can prevent the dial from freezing and cracking, provided in this embodiment. Figure 2 This is a schematic diagram of the overall structure of a water meter that can prevent the dial from freezing and cracking, provided in this embodiment. Figure 3 This is an explosion-proof schematic diagram of another overall structure of a water meter that can prevent the dial from freezing and cracking, provided in this embodiment. Figure 4 This is an explosion diagram of the core device of a water meter that can prevent the dial from freezing and cracking, provided in this embodiment.

[0018] In the diagram: 1. Water meter body; 11. Receiving groove; 12. Installation port; 13. Water inlet port; 14. Water outlet port; 2. Meter core device; 21. Meter dial; 22. Protective cover; 23. Buffer abutment ring; 231. Limiting protrusion ring; 2311. Buffer notch; 2312. Insertion piece; 232. Limiting step; 24. Elastic buffer sealing ring; 25. Cylindrical shell; 251. Insertion groove; 3. Installation sealing cover; 31. Observation window; 32. First abutment step; 33. Installation thread. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0020] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] Furthermore, the technical features involved in the different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other.

[0023] This utility model provides, for example Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a water meter with a dial 21 designed to prevent freezing and cracking is used to measure water flow and display the flow rate value on the dial 21. The water meter typically measures the cumulative water flow. Its main structure includes: a water meter body 1, a meter core device 2, and a sealing cover 3. The water meter body 1 guides the water flow and houses the meter core device 2. When water flows through the water meter body 1, it drives an impeller on the meter core device 2, which in turn drives the statistical mechanism inside the meter core device 2, thereby achieving the effect of measuring water flow. The water meter body 1 has a receiving groove 11, and an installation port 12 is provided at one end of the receiving groove 11. The meter core device 2 is disposed in the receiving groove 11, and a dial 21 is provided on the meter core device 2 near the installation port 12. A protective cover 22 is provided on the dial 21, and a buffer abutment ring 23 is fitted around the circumference of the protective cover 22. An elastic buffer sealing ring 24 is provided on the buffer abutment ring 23. The installation sealing cover 3 is detachably connected to the installation port 12. An observation window 31 is provided in the middle of the installation sealing cover 3, so that the edge of the observation window forms a first abutment step 32. The first abutment step 32 is used to abut against the elastic buffer sealing ring 24. The elastic buffer sealing ring 24 is used to buffer the protective cover 22 and seal, so that the receiving groove 11 forms a sealed cavity. The protective cover 22 can be transparent glass or other non-glass transparent material. During the use of the water meter, the user can directly observe the value on the dial 21 through the observation window 31 and through the protective cover 22. The protective cover 22 can protect the dial 21 and seal the receiving groove 11 to prevent water from leaking out of the receiving groove 11.

[0024] The watch movement device 2 is floating along the axis of the mounting port 12. That is, the watch movement device 2 is not completely fixed in the receiving groove 11. Instead, the watch movement device 2 can have a certain amount of movement buffer space in the direction of the axis of the mounting port 12 under the push of the internal water pressure. This allows the water pressure in the receiving groove 11 to be applied to the elastic buffer sealing ring 24 at the edge of the protective cover 22.

[0025] It should be noted that the glass cover of traditional water meters is usually fixed directly above the base meter. This results in insufficient buffer space between the glass cover and the base meter, meaning the pressure generated by the expansion of water freezing inside the meter will directly act on the glass cover, causing it to bulge, deform, or shatter. This significantly affects the lifespan of the water meter.

[0026] This invention utilizes the elastic deformation properties of the buffer abutment ring 23 and the elastic buffer sealing ring 24 located above the glass of the dial 21. When the water meter's interior freezes and expands due to low temperatures, the dial glass (protective cover 22) is pushed outward by the internal expansion pressure. This effectively buffers the displacement of the dial glass caused by the expansion of ice inside the water meter, preventing the pressure generated by the expansion from directly acting on the glass and causing it to bulge, deform, or crack.

[0027] Furthermore, such as Figure 2 , Figure 3 and Figure 4 As shown, a limiting protrusion 231 is provided on the inner sidewall of the buffer abutment ring 23. The limiting protrusion 231 is arranged around the inner circumference of the buffer abutment ring 23. The limiting protrusion 231 protrudes along the height direction of the buffer abutment ring 23 and is located on the upper surface of the buffer abutment ring 23, so that a limiting step 232 is formed between the limiting protrusion 231 and the buffer abutment ring 23. The limiting step 232 is used to accommodate the elastic buffer sealing ring 24.

[0028] It should be noted that when assembling the water meter, the elastic buffer sealing ring 24 can be directly fitted onto the limiting step 232. This prevents the elastic buffer sealing ring 24 from deforming due to compression during the assembly and installation of the sealing cover 3, thus avoiding the deformed part of the elastic buffer sealing ring 24 from dislodging from the installation position and affecting the sealing effect.

[0029] Furthermore, such as Figure 2 , Figure 3 and Figure 4 As shown, the limiting step 232 matches the elastic buffer sealing ring 24, and at least one buffer notch 2311 is provided on the side wall of the limiting protrusion ring 231. The diameters of the limiting protrusion ring 231 and the buffer abutment ring 23 are changed by the contraction or expansion of the buffer notch 2311.

[0030] It should be noted that in low-temperature environments, the pressure generated by the expansion of water freezing inside the water meter will directly act on the protective cover 22 (glass cover), and the protective cover 22 will slightly shift upwards. At this time, the compressive force on the upper and lower ends of the elastic buffer sealing ring 24 will increase, causing deformation. The buffer abutment ring 23 and the limiting protrusion ring 231, which serve as the carriers of the elastic buffer sealing ring 24, will also deform under high pressure. Therefore, in this embodiment, at least one buffer notch 2311 is provided on the side wall of the limiting protrusion ring 231. The deformation stress of the buffer abutment ring 23 and the limiting protrusion ring 231 can be released through the buffer notch 2311. Furthermore, it provides a buffer zone during the deformation process of the elastic buffer sealing ring 24. This improves the sealing effect of the elastic buffer sealing ring 24 and the buffering effect of the overall sealing structure.

[0031] Furthermore, such as Figure 4 As shown, the buffer notch 2311 extends to one side of the buffer abutment ring 23. Since the buffer abutment ring 23 and the limiting protrusion ring 231 are integrally formed, extending the buffer notch 2311 to one side of the buffer abutment ring 23 can increase the buffering effect of the entire elastic buffer sealing ring 24 carrier.

[0032] Furthermore, such as Figure 4As shown, the watch movement device 2 also includes at least a cylindrical housing 25. At least one limiting connector 2312 is provided on the lower surface of the buffer abutment ring 23. A connector groove 251 is provided on the cylindrical housing 25 at a position corresponding to the limiting connector 2312, and the connector 2312 matches the connector groove 251. It can be understood that the matching of the connector 2312 and the connector groove 251, and their mutual insertion, can prevent positional displacement between the buffer abutment ring 23 and the cylindrical housing 25.

[0033] Furthermore, such as Figure 4 As shown, the buffer abutment ring 23 and the limiting plug 2312 are both integrally formed with the limiting protrusion ring 231. This increases the overall structural strength of the entire elastic buffer sealing ring 24 carrier (buffer abutment ring 23, limiting plug 2312, and limiting protrusion ring 231), as well as the sealing performance between the structural components. This prevents water leakage through the gaps between the structural components.

[0034] Furthermore, such as Figure 2 As shown, the sealing cover 3 is a ring-shaped structure, and the protective cover 22 is a disc-shaped protective cover 22.

[0035] Furthermore, such as Figure 3 As shown, the water meter body 1 is also provided with an inlet port 13 and an outlet port 14, both of which are connected to the receiving groove 11.

[0036] Furthermore, such as Figure 2 and Figure 3 As shown, the mounting sealing cover 3 has a mounting thread 33 on its side wall. The mounting thread 33 is arranged around the circumference of the mounting sealing cover 3, and the mounting sealing cover 3 is screwed onto the mounting port 12 through the mounting thread 33.

[0037] In summary, this application provides a water meter that can prevent the dial from freezing and cracking. When the inside of the water meter freezes and expands due to low temperature, the glass of the dial 21 (protective cover 22) will be pushed outward by the internal expansion pressure. This utility model effectively buffers the displacement of the glass of the dial 21 caused by the expansion of ice inside the water meter through the elastic deformation performance of the buffer abutment ring 23 and the elastic buffer sealing ring 24 provided above the glass of the dial 21, preventing the pressure generated by the expansion from acting directly on the glass and causing the glass to bulge, deform or burst.

[0038] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A water meter that prevents the dial from freezing and cracking, characterized in that, include: The water meter body has a receiving groove, and one end of the receiving groove has an installation port; The watch movement assembly is disposed in the receiving groove. A dial is disposed on the watch movement assembly near the mounting port. A protective cover is disposed on the dial. A buffer abutment ring is sleeved around the circumference of the protective cover. An elastic buffer sealing ring is disposed on the buffer abutment ring. The installation sealing cover is detachably connected to the installation port. An observation window is provided in the middle of the installation sealing cover so that the edge of the observation window forms a first abutting step. The first abutting step is used to abut against the elastic buffer sealing ring. The elastic buffer sealing ring is used to buffer the protective cover and seal so that the receiving groove forms a sealed cavity. The watch movement device is floating along the axis of the mounting port.

2. A water meter according to claim 1 that prevents the dial from freezing and cracking, characterized in that, A limiting protrusion is provided on the inner sidewall of the buffer abutment ring. The limiting protrusion is arranged around the inner circumference of the buffer abutment ring and protrudes from the upper surface of the buffer abutment ring along the height direction, so that a limiting step is formed between the limiting protrusion and the buffer abutment ring. The limiting step is used to accommodate the elastic buffer sealing ring.

3. A water meter according to claim 2 that prevents the dial from freezing and cracking, characterized in that, The limiting step matches the elastic buffer sealing ring, and at least one buffer notch is provided on the side wall of the limiting protrusion ring. The diameters of the limiting protrusion ring and the buffer abutment ring are changed by the contraction or expansion of the buffer notch.

4. A water meter according to claim 3 that prevents the dial from freezing and cracking, characterized in that, The buffer notch extends to one side of the buffer abutment ring.

5. A water meter according to claim 2 that prevents the dial from freezing and cracking, characterized in that, The watch movement device further includes at least a cylindrical shell, and the lower surface of the buffer abutment ring is provided with at least one limiting plug. The cylindrical shell is provided with a plug groove corresponding to the position of the limiting plug, and the plug matches the plug groove.

6. A water meter according to claim 5 that prevents the dial from freezing and cracking, characterized in that, Both the buffer abutment ring and the limiting plug are integrally formed with the limiting protrusion ring.

7. A water meter according to claim 1 that prevents the dial from freezing and cracking, characterized in that, The sealing cover is a ring-shaped structure, and the protective cover is a disc-shaped protective cover.

8. A water meter according to claim 1 that prevents the dial from freezing and cracking, characterized in that, The water meter body is also provided with an inlet port and an outlet port, both of which are connected to the receiving groove.

9. A water meter according to claim 1 that prevents the dial from freezing and cracking, characterized in that, The mounting sealing cover has mounting threads on its side wall, which are arranged around the circumference of the mounting sealing cover. The mounting sealing cover is screwed onto the mounting port through the mounting threads.

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