阅读说明：本技术 一种具有防冻结构的水表 (Water meter with anti-freezing structure ) 是由 陈国建 张庆 于 2021-03-10 设计创作，主要内容包括：本发明涉及一种具有防冻结构的水表,包括壳体,壳体的内部具有流通腔以及与流通腔连通的至少两个防冻腔,每个防冻腔具有防冻结构,防冻结构包括活动部分以及与所述活动部分连接的弹性件,活动部分的近端具有缺口,相邻活动部分的缺口之间形成与流通腔连通的过流孔,流经所述过流孔的液体介质膨胀为固体时,活动部分接触所述固体并向所述弹性件施压,以抵消所述固体的膨胀力。本发明通过在流通腔中开设防冻腔,同时在防冻腔中设置防冻结构,利用防冻结构中的弹簧以及活塞可以抵消掉液体转变为固体时的膨胀力,以避免液体转化为固体时损坏水表的情况发生,大大提高了水表的使用寿命,节约了自来水公司的人力物力,降低了其运营成本。(The invention relates to a water meter with an anti-freezing structure, which comprises a shell, wherein a circulation cavity and at least two anti-freezing cavities communicated with the circulation cavity are arranged in the shell, each anti-freezing cavity is provided with the anti-freezing structure, each anti-freezing structure comprises a movable part and an elastic part connected with the movable part, the near end of each movable part is provided with a notch, an overflowing hole communicated with the circulation cavity is formed between the notches of the adjacent movable parts, and when a liquid medium flowing through the overflowing hole expands into a solid, the movable part contacts the solid and applies pressure to the elastic part so as to counteract the expansion force of the solid. According to the invention, the anti-freezing cavity is formed in the circulating cavity, and the anti-freezing structure is arranged in the anti-freezing cavity, so that the expansion force generated when liquid is converted into solid can be offset by using the spring and the piston in the anti-freezing structure, the water meter is prevented from being damaged when the liquid is converted into solid, the service life of the water meter is greatly prolonged, the manpower and material resources of a tap water company are saved, and the operation cost of the water meter is reduced.)

1. A water gauge with anti-freeze structure which characterized in that: including the casing, the inside of casing have the circulation chamber that can supply the liquid medium business turn over and with at least two of circulation chamber intercommunication prevent frostbite the chamber, every prevent frostbite the chamber and have the structure of preventing frostbite, prevent frostbite the structure include the movable part and with the elastic component that the movable part is connected, the near-end of movable part has the breach, and is adjacent form between the breach of movable part with the discharge orifice that the circulation chamber communicates flows through when the liquid medium inflation of discharge orifice is the solid, the movable part contact the solid with to the elastic component is exerted pressure, in order to offset the expansive force of solid.

2. A water meter having an antifreeze structure as set forth in claim 1, wherein: the notch is an inward concave structure which is concave along the far end direction of the anti-freezing cavity.

3. A water meter having an antifreeze structure as set forth in claim 2, wherein: the distal end of the movable portion is connected to at least a first seal.

4. A water meter having an antifreeze structure as set forth in claim 3, wherein: the distal end of the antifreeze cavity is closed.

5. A water meter having an antifreeze structure as set forth in claim 3, wherein: the distal end of the antifreeze chamber is not closed.

6. A water meter having an antifreeze structure as set forth in claim 5, wherein: the far end of the anti-freezing cavity is connected with a sealing cover.

7. A water meter having an antifreeze structure as set forth in claim 6, wherein: there is also a second seal at the junction of the proximal end of the seal cap and the distal end of the antifreeze chamber.

8. A water meter having an antifreeze structure as set forth in claim 7, wherein: and a counter bore is further formed in the shell close to the far end of the anti-freezing cavity, and the bottom surface of the counter bore and the top surface of the sealing cover are in the same horizontal plane.

9. A water meter having an antifreeze structure as set forth in claim 8, wherein: the water meter further comprises a plug body, the near end of the plug body is matched with the counter bore, and the end face of the far end of the plug body is flush with the outer side face of the shell.

Technical Field

The invention relates to the technical field of instrument equipment, in particular to a water meter with an anti-freezing structure.

Background

A water meter is an instrument for measuring water flow, and is mainly used for cumulative flow measurement of water. Because the water meter is a plastic shell and is basically arranged in an outdoor water meter box or a water meter well due to the transformation of the water meter by one household, when the outdoor temperature is reduced to below zero, if no anti-freezing measure is made outside the water meter, water in the water meter shell can be frozen in a non-flowing state, the volume of the frozen water expands, and in addition, the plastic shell becomes brittle in a low-temperature state, so that the water meter shell is frozen and leaks, and great loss is caused to users, property and water supply companies. In addition, in order to prevent the occurrence of frost cracking and water leakage, a tap water company needs to spend a large amount of manpower and material resources to take heat preservation measures on the water meter with the potential danger of frost cracking and needs to prepare a standby water meter in advance, so that the operation cost of the tap water company is increased.

Disclosure of Invention

In view of the above-discussed shortcomings of the prior art, it is an object of the present invention to provide a water meter with an anti-freeze structure to solve one or more of the problems of the prior art.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the utility model provides a water gauge with anti-freezing structure, includes the casing, the inside of casing have the circulation chamber that can supply the liquid medium business turn over and with at least two anti-freezing chamber of circulation chamber intercommunication, every the anti-freezing chamber has anti-freezing structure, anti-freezing structure include the movable part and with the elastic component that the movable part is connected, the near-end of movable part has the breach, and is adjacent form between the breach of movable part with the discharge orifice that circulates the chamber intercommunication flows through when the liquid medium inflation of discharge orifice is the solid, the movable part contact the solid and to the elastic component is exerted pressure, in order to offset the expansive force of solid.

Furthermore, the notch is an inward concave structure which is concave along the far end direction of the anti-freezing cavity.

Further, the distal end of the movable portion is coupled to at least a first sealing element.

Further, the far end of the anti-freezing cavity is closed.

Further, the distal end of the antifreeze cavity is not closed.

Further, the far end of the anti-freezing cavity is connected with a sealing cover.

Further, a second sealing element is arranged at the joint of the near end of the sealing cover and the far end of the anti-freezing cavity.

Furthermore, a counter bore is formed in the shell close to the far end of the anti-freezing cavity, and the bottom face of the counter bore and the top face of the sealing cover are in the same horizontal plane.

Furthermore, the water meter further comprises a plug body, the near end of the plug body is matched with the counter bore, and the far end face of the plug body is flush with the outer side face of the shell.

Compared with the prior art, the invention has the following beneficial technical effects:

according to the invention, the anti-freezing cavity is formed in the flow-through cavity, and the anti-freezing structure is arranged in the anti-freezing cavity, so that the expansion force generated when liquid is converted into solid can be offset by using the spring and the piston in the anti-freezing structure, the water meter is prevented from being damaged when the liquid is converted into solid, the service life of the water meter is greatly prolonged, the manpower and material resources of a tap water company are saved, and the operation cost of the water meter is reduced.

And (II) the first sealing element is arranged on the first piston or the second piston, so that the problem of leakage of the first piston and the second piston in the process of stressed movement can be avoided, and the movement tightness of the first piston and the second piston is ensured.

The sealing cover is convenient to detach quickly, replacement and maintenance of the inner piston and the spring are facilitated, and sustainable utilization and use stability of the water meter structure are guaranteed.

Drawings

Fig. 1 shows a schematic diagram of a water meter with an anti-freezing structure according to an embodiment of the present invention.

Fig. 2 is a schematic sectional view of a water meter with an anti-freezing structure in the direction a-a according to an embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of a water meter having an anti-freeze structure in a direction B-B according to an embodiment of the present invention.

In the drawings, the reference numbers: 100. a housing; 101. a counter bore; 102. a flow-through chamber; 1031. a first freeze proof chamber; 104. a first mounting port; 105. a second mounting opening; 106. a third mounting port; 107. a liquid inlet; 108. a liquid outlet; 109. an overflowing hole; 1032. a second freeze proof chamber; 2. a first antifreeze structure; 200. a first piston; 2001. a first notch; 201. a first spring; 202. a first sealing cover; 2021. a first hole; 3. a second antifreeze structure; 300. a second piston; 3001. a second notch; 301. a second spring; 302. a second sealing cover; 3021. a second hole; 4. a first seal member; 5. a second seal member; 6. a plug body.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, a water meter with an anti-freezing structure according to the present invention will be described in detail with reference to the accompanying drawings and the following detailed description. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.

In the present invention, the term "proximal end" refers to an end close to the overflowing hole 109, and the term "distal end" refers to an end far from the overflowing hole 109, as shown in fig. 2, where the right side of the first piston 200 or the left side of the second piston 300 in fig. 2 is a proximal end, and the left side of the first piston 200 or the right side of the second piston 300 is a distal end.

The first embodiment is as follows:

referring to fig. 1, 2 and 3, a water meter with an anti-freezing structure according to a first embodiment of the present invention includes a housing 100, a flow-through chamber 102 for liquid medium to flow in and out and at least two anti-freezing chambers communicating with the flow-through chamber 102 are provided in the housing 100, specifically, the flow-through chamber 102 has a liquid inlet 107 and a liquid outlet 108, referring to fig. 1, in the water meter with an anti-freezing structure according to a first embodiment of the present invention, the flow-through chamber 102 longitudinally penetrates the housing 100, the anti-freezing chambers are specifically a first anti-freezing chamber 1031 and a second anti-freezing chamber 1032, the first anti-freezing chamber 1031 and the second anti-freezing chamber 1032 are coaxial and transversely penetrate the housing 100, and proximal ends of the first anti-freezing chamber 1031 and the second anti-freezing chamber 1032 are respectively communicated with the flow-freezing chamber 102. There is an anti-freeze structure in both the first anti-freeze chamber 1031 and the second anti-freeze chamber 1032.

The specific structure of the antifreeze structure is described below as follows:

with continuing reference to fig. 2 and fig. 3, in the water meter with anti-freeze structure according to the first embodiment of the present invention, there is a first anti-freeze structure 2 in the first anti-freeze chamber 1031, and there is a second anti-freeze structure 3 in the second anti-freeze chamber 1032, the first anti-freeze structure 2 and the second anti-freeze structure 3 have the same structure, where the first anti-freeze structure 2 includes a first piston 200 and a first spring 201, and the second anti-freeze structure 3 includes a second piston 300 and a second spring 301, and the specific connection relationship of the first anti-freeze structure 2 is described below by taking the first anti-freeze structure 2 as an example.

With continued reference to fig. 2 and 3, the distal end of the first piston 200 is in clearance fit with the proximal end of the first anti-freezing chamber 1031, the proximal end of the first piston 200 is provided with a first notch 2001 which is a concave structure recessed along the distal direction of the first anti-freezing chamber 1031, the first notch 2001 is semicircular, similarly, the distal end of the second piston 300 is also provided with a second notch 3001 which is a concave structure recessed along the distal direction of the second anti-freezing chamber 1032, the second notch 3001 is also semicircular, when the first spring 201 is undeformed, two adjacent first pistons 200 and second pistons 300 are abutted to each other, so that the concave structure of the first piston 200 and the concave structure of the second piston 300 are spliced to form a circular through-flow hole 109, the through-flow hole 109 is communicated with the flow chamber 102, when the liquid medium flowing through the through-flow hole 109 expands to a solid at a low temperature, the first piston 200 and the second piston 300 contact the solid and the solid expands to a volume that is expanded to the solid volume The first spring 201 or the second spring 301 is pressurized to counteract the expansion force of the solid.

Of course, in other embodiments of the present invention, the first notch 2001 and the second notch 3001 are not limited to the semi-circular shape described in the first embodiment of the present invention, and may be any concave structure as long as it is in communication with the circulation chamber 102 and allows the liquid medium to flow through.

Further, with continued reference to fig. 2 and 3, the distal ends of the first piston 200 and the second piston 300 are respectively provided with holes, the proximal end of the first spring 201 is fitted in the hole at the distal end of the first piston 200, and the proximal end of the second spring 301 is fitted in the hole at the distal end of the second piston 300. In order to ensure that the first piston 200 and the second piston 300 are sealed during the movement process of counteracting the expansion force, at least one first sealing element 4 is assembled on the outer side of the distal end of the first piston 200 and the outer side of the distal end of the second piston 300, specifically, in the water meter according to the first embodiment of the invention, the first sealing element 4 is an O-ring.

Further, with continued reference to fig. 2 and fig. 3, the distal end of the first anti-freezing chamber 1031 or the second anti-freezing chamber 1032 is closed or not closed, where the closing means that the distal end of the first anti-freezing chamber 1031 or the second anti-freezing chamber 1032 is directly closed by the housing 100, and the distal end of the first spring 201 or the second spring 301 is directly abutted against the closed end of the housing 100.

Further, with continuing reference to fig. 2 and fig. 3, when the distal end of the first anti-freezing chamber 1031 or the second anti-freezing chamber 1032 is not closed, the first sealing cover 202 is engaged with the distal end of the first anti-freezing chamber 1031, the second sealing cover 302 is engaged with the distal end of the second anti-freezing chamber 1032, and the first spring 201 and the second spring 301 can be conveniently disassembled and replaced by the first sealing cover 202 and the second sealing cover 302, which has the effect of quick and convenient disassembly. The first sealing cover 202 has a first hole 2021 for inserting a repairing tool therein on an outer surface thereof, and the second sealing cover 302 has a second hole 3021 for inserting a repairing tool therein on an outer surface thereof, so that a user can rapidly remove the first sealing cover 202 and the second sealing cover 302 by using a tool.

Further, with continued reference to fig. 2 and 3, in order to ensure the sealing performance of the assembly of the first seal cover 202 and the second seal cover 302, a second seal 5 is provided at the junction between the proximal end of the first seal cover 202 and the distal end of the first antifreeze chamber 1031, and a second seal 5 is also provided at the junction between the proximal end of the second seal cover 302 and the distal end of the second antifreeze chamber 1032, wherein the second seal 5 is also an O-ring seal.

Of course, in other embodiments of the present invention, the second sealing member 5 is not limited to an O-ring, and may be any sealing structure having a sealing function.

Further, with continued reference to fig. 2, in order to ensure the assembly of the distal ends of the first spring 201 and the second spring 301, a groove is formed on the proximal end of the first seal cap 202 and the proximal end of the second seal cap 302, and the diameter of the groove is slightly larger than the diameter of the first spring 201 or the second spring 301, so as to allow the distal end of the first spring 201 and the distal end of the second spring 301 to be assembled.

Further, with continuing reference to fig. 2 and 3, a counter bore 101 is further formed in the housing 100 near the distal end of the first anti-freeze chamber 1031 or the second anti-freeze chamber 1032, and a bottom surface of the counter bore 101 is at the same level as a top surface of the cover of the seal cover.

Further, please continue to refer to fig. 2 and fig. 3, the water meter further includes a plug body 6, the proximal end of the plug body 6 is matched with the counter bore 101, the distal end face of the plug body 6 is flush with the outer side face of the housing 100, the arrangement of the plug body 6 makes the appearance structure of the water meter more beautiful, and simultaneously prevents the user from damaging the anti-freezing structure, so that the whole anti-freezing structure is hidden inside the plug body 6.

Referring to fig. 3, a water meter with an anti-freezing structure according to an embodiment of the present invention is further connected to the flow-through chamber 102 through a first mounting port 104, a second mounting port 105, and a third mounting port 106, respectively, where the first mounting port 104 and the second mounting port 105 are used for mounting an ultrasonic transducer, and the third mounting port 106 is used for mounting a ball valve plug.

The following describes the use of the present invention as follows:

in normal use, a liquid medium, such as water, enters the flow-through chamber 102 from the inlet port 107, then passes through the flow-through hole 109 and enters the flow-through chamber 102 again and flows out of the outlet port 108. When the temperature is low outdoors, the liquid medium circulating inside the housing 100 freezes and forms a solid, so that the volume gradually expands and increases, the first piston 200 and the second piston 300 are contacted while the volume increases, the first piston 200 is forced to move to the distal end of the first anti-freezing chamber 1031 and compress the first spring 201, the second piston 300 is forced to move to the distal end of the second anti-freezing chamber 1032 and compress the second spring 301, and thus the expansion force for converting the liquid medium into the solid is further counteracted, and the housing 100 is protected from being frozen. And when the temperature is not low any more, the expansion force disappears when the solid is changed into the liquid, and the first spring 201 and the second spring 301 recover the deformation respectively, so that the first piston 200 and the second piston 300 are reset, thereby ensuring the normal use of the invention.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.