Anti-freezing connecting pipe assembly of water meter

Abstract

The utility model discloses a water meter anti-freezing connecting pipe assembly which comprises an anti-freezing connecting pipe, a set of through holes are formed in the middle section of the anti-freezing connecting pipe in a winding mode, and an anti-explosion sleeve is arranged outside the through holes in a wrapping mode and made of tough materials. The explosion-proof sleeve is matched with the through hole to achieve bearing of volume expansion in a frozen state, due to the fact that the explosion-proof sleeve is made of tough materials, after the temperature rises and thawing is conducted, the explosion-proof pipe directly returns to the original position, the reutilization effect is achieved, resources are saved, meanwhile, the explosion-proof sleeve is composed of the upper wrapping sleeve and the lower wrapping sleeve, disassembly and assembly are convenient, and cost is low. The problem that an existing ultrasonic water meter cannot prevent freezing and explosion in a cold region is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of water meter pipes, in particular to an antifreeze pipe assembly for a water meter. Background Art

[0002] In cold areas, water meters and their connecting pipes are very likely to freeze and crack due to low temperatures in winter, resulting in damage to the water meters and waste of water resources.

[0003] Although there are some antifreeze measures on the market, most of them rely on energy-consuming methods such as electric heating, which are costly and not environmentally friendly. Therefore, it is necessary to develop an antifreeze pipe assembly with a simple structure, low cost, and easy installation. Summary of the Invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the problems existing in the above-mentioned existing antifreeze methods of water meters, the present utility model is proposed.

[0006] Therefore, the purpose of the present invention is to provide a water meter antifreeze pipe assembly to solve the problem that the existing water meter antifreeze measures are high in cost and not environmentally friendly.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a water meter antifreeze pipe assembly, including an antifreeze pipe, a group of through holes are arranged around the circumferential wall of the middle section of the antifreeze pipe, an expansion sleeve is completely covered outside the through holes, the expansion sleeve completely covers the group of through holes, an explosion-proof sleeve is completely covered outside the expansion sleeve, and the explosion-proof sleeve and the expansion sleeve are both made of tough material.

[0008] As a preferred solution of the water meter antifreeze pipe assembly described in the utility model, the explosion-proof sleeve includes an upper sleeve and a lower sleeve that are threaded together, and a group of screw holes are provided on the upper sleeve and the lower sleeve, and nuts are screwed on the screw holes to achieve fixation.

[0009] As a preferred solution of the water meter antifreeze pipe assembly described in the utility model, nut screwing inlets are evenly arranged on the upper sleeve and the lower sleeve.

[0010] As a preferred solution of the water meter antifreeze pipe assembly described in the utility model, wherein: the upper sleeve and the lower sleeve are both provided with connecting parts, and the connecting parts specifically include connecting pages and inserts. The connecting page on one side cooperates with the insert on the other side to achieve the limiting of the expansion sleeve and the explosion-proof sleeve.

[0011] As a preferred solution of the water meter antifreeze pipe assembly described in the utility model, the explosion-proof sleeve is made of tough nylon material, and the expansion sleeve is made of tough rubber material.

[0012] As a preferred solution of the water meter antifreeze pipe assembly described in the utility model, the explosion-proof sleeve is made of a tough plastic material, and the expansion sleeve is made of a tough rubber material.

[0013] As a preferred solution of the water meter antifreeze pipe assembly described in the utility model, the explosion-proof sleeve is made of a tough rubber material, and the expansion sleeve is made of a tough rubber material.

[0014] As a preferred solution of the water meter antifreeze pipe assembly described in the utility model, a ring groove is provided in the middle section of the antifreeze pipe, and the upper sleeve and the lower sleeve are completely inserted into the ring groove to achieve positioning.

[0015] As a preferred solution of the water meter antifreeze pipe assembly described in the utility model, one end of the antifreeze pipe is provided with a screw thread, and the other end is equipped with an antifreeze nut. A clamping ring is provided at the port of the antifreeze nut, and the clamping ring cooperates with the convex ring provided at the port of the antifreeze pipe to achieve limiting.

[0016] As a preferred solution of the water meter antifreeze pipe assembly described in the utility model, a sealing O-ring is filled in the antifreeze nut.

[0017] The beneficial effects of the present invention are as follows: the present invention provides an antifreeze pipe assembly for a water meter, which realizes the acceptance of the volume expansion of the fluid in the frozen state pipeline through the expansion sleeve and explosion-proof sleeve made of tough material in conjunction with the upper through hole. Since the expansion sleeve and explosion-proof sleeve are made of tough material, when the temperature rises and thaws, the expansion sleeve and explosion-proof pipe directly return to their original position, which has the effect of reuse and saves resources. At the same time, the explosion-proof sleeve of the present invention is composed of an upper sleeve and a lower sleeve, which is convenient for disassembly and assembly, and solves the problem that the existing antifreeze measures for water meters are high in cost and not environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the explosion structure of the utility model. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0024] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing embodiments of the present invention, cross-sectional views of device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included. Example

[0025] In cold regions, water meters and their pipe connections are prone to freezing and cracking during winter, resulting in meter damage and water waste. While some antifreeze measures are available on the market, most rely on energy-intensive methods like electric heating, which is costly and environmentally unfriendly. Therefore, there is a need for an antifreeze pipe assembly with a simple structure, low cost, and ease of installation.

[0026] Therefore, refer to Figure 1 and Figure 2 The utility model provides an antifreeze pipe assembly for a water meter, including an antifreeze pipe 100. A group of through holes 101 are arranged around the circumferential wall of the middle section of the antifreeze pipe 100. An expansion sleeve 500 is completely covered outside the through holes 101. The expansion sleeve 500 completely covers the group of through holes 101. An explosion-proof sleeve 200 is completely covered outside the expansion sleeve 500. Both the explosion-proof sleeve 200 and the expansion sleeve 500 are made of tough material.

[0027] It should be noted that the expansion sleeve 500 has the function of sealing and preventing water leakage.

[0028] Specifically, the explosion-proof sleeve 200 includes an upper sleeve 201 and a lower sleeve 202 that are screwed together. A set of screw holes are provided on each of the upper sleeve 201 and the lower sleeve 202, and nuts are screwed on the screw holes to achieve fixation.

[0029] Specifically, the screwing inlets for the nuts are evenly arranged on the upper and lower sleeves 201 and 202. The balanced screw opening arrangement ensures that the screw locking structures on both sides are subjected to balanced force, and can more effectively lock the upper and lower sleeves 201 and 202.

[0030] Furthermore, both the upper and lower sleeves 201 and 202 are provided with joints 300 , which specifically include connecting pages 301 and inserting pages 302 . The connecting page 301 on one side cooperates with the inserting page 302 on the other side to achieve the limitation of the expansion sleeve 500 and the explosion-proof sleeve 200 .

[0031] Specifically, the explosion-proof sleeve 200 is made of a tough nylon material, and the expansion sleeve 500 is made of a tough rubber material.

[0032] Specifically, the explosion-proof sleeve 200 is made of a tough plastic material, and the expansion sleeve 500 is made of a tough rubber material.

[0033] Specifically, the explosion-proof sleeve 200 is made of a tough rubber material, and the expansion sleeve 500 is made of a tough rubber material.

[0034] It should be noted that freezing water in pipes causes them to expand. The elastic expansion coefficient is considered when selecting materials. This coefficient typically refers to a material's linear expansion coefficient under temperature changes. It indicates the percentage increase in length when the temperature rises by 1°C (or 1 Kelvin). In practical manufacturing, the elastic expansion coefficient is typically considered to be in the range of 4 to 10 (10^-5 / °C).

[0035] It should be noted that the elastic expansion coefficient of the water pipe is usually expressed by the following formula:

[0036] [ \alpha = \frac{\Delta L}{L_0 \Delta T} ]

[0037] in:

[0038] ( \alpha ) is the linear expansion coefficient (unit: 1 / degree Celsius or 1 / Kelvin);

[0039] ( \Delta L ) is the change in material length;

[0040] ( L_0 ) is the initial length of the material;

[0041] ( \Delta T ) is the change in temperature.

[0042] However, the expansion of a pipe due to internal water freezing isn't a simple linear expansion; it's an overall deformation caused by an increase in internal pressure. Calculating the elastic expansion coefficient isn't appropriate for this situation, as the freezing increases the internal pressure, potentially causing plastic deformation or even rupture.

[0043] If you want to calculate the volumetric expansion coefficient due to freezing (rather than the linear expansion coefficient), you can use the following formula:

[0044] [ \beta = \frac{\Delta V}{V_0 \Delta T} ]

[0045] in:

[0046] ( \beta ) is the volume expansion coefficient;

[0047] ( \Delta V ) is the change in volume;

[0048] ( V_0 ) is the initial volume;

[0049] ( \Delta T ) is the temperature change.

[0050] Furthermore, a ring-shaped groove 102 is provided in the middle section of the antifreeze pipe 100, and the upper sleeve 201 and the lower sleeve 202 are completely inserted into the ring-shaped groove 102 to achieve position limiting.

[0051] Furthermore, one end of the antifreeze pipe 100 is provided with a screw thread, and the other end is equipped with an antifreeze nut 400. A clamping ring is provided at the end of the antifreeze nut 400, and the clamping ring cooperates with the convex ring provided at the end of the antifreeze pipe 100 to achieve positioning.

[0052] Furthermore, a sealing O-ring is filled in the antifreeze nut 400.

[0053] During use, when the water in the cold water pipe freezes, its volume expands, and the ice seeps out from a group of through holes 101, relieving the pressure inside the water pipe. Under the condition of continued low temperature, the ice expands to the expansion sleeve 500 and the explosion-proof sleeve 200, and the explosion-proof sleeve 200 and the expansion sleeve 500 expand under pressure. When the weather gets hot and the ice in the pipe melts, the explosion-proof sleeve 200 and the expansion sleeve 500 return to their original position, so that they can be reused.

[0054] The utility model is applicable to many water meters such as ultrasonic water meters, electromagnetic water meters, mechanical water meters, etc.

[0055] The utility model provides an antifreeze pipe assembly for a water meter, which realizes the acceptance of the volume expansion of the fluid in the frozen state pipeline through the expansion sleeve and the explosion-proof sleeve made of tough material in conjunction with the upper through hole. Since the expansion sleeve and the explosion-proof sleeve are made of tough material, when the temperature rises and thaws, the expansion sleeve and the explosion-proof pipe directly return to their original positions, which has the effect of reuse and saves resources. At the same time, the explosion-proof sleeve of the utility model is composed of an upper sleeve and a lower sleeve, which is convenient for disassembly and assembly, and solves the problem that the existing antifreeze measures for water meters are high in cost and not environmentally friendly.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A water meter antifreeze pipe assembly, characterized by: The invention comprises an antifreeze pipe (100), wherein a group of through holes (101) are arranged around the circumferential wall of the middle section of the antifreeze pipe (100), an expansion sleeve (500) is completely provided outside the through holes (101), the expansion sleeve (500) completely covers the group of through holes (101), an explosion-proof sleeve (200) is completely provided outside the expansion sleeve (500), and both the explosion-proof sleeve (200) and the expansion sleeve (500) are made of tough material.

2. The water meter antifreeze pipe assembly according to claim 1, characterized in that: The explosion-proof sleeve (200) comprises an upper sleeve (201) and a lower sleeve (202) that are screwed together. A set of screw holes are provided on each of the upper sleeve (201) and the lower sleeve (202), and nuts are screwed on the screw holes to achieve fixation.

3. The water meter antifreeze pipe assembly according to claim 2, characterized in that: Nut screwing inlets are evenly arranged on the upper sleeve (201) and the lower sleeve (202).

4. The water meter antifreeze pipe assembly according to claim 3, characterized in that: The upper sleeve (201) and the lower sleeve (202) are both provided with a joint piece (300), and the joint piece (300) specifically includes a connecting leaf (301) and an insert leaf (302). The connecting leaf (301) on one side cooperates with the insert leaf (302) on the other side to achieve the limiting of the expansion sleeve (500) and the explosion-proof sleeve (200).

5. The water meter antifreeze pipe assembly according to claim 4, characterized in that: The explosion-proof sleeve (200) is made of a tough nylon material, and the expansion sleeve (500) is made of a tough rubber material.

6. The water meter antifreeze pipe assembly according to claim 4, characterized in that: The explosion-proof sleeve (200) is made of a tough plastic material, and the expansion sleeve (500) is made of a tough rubber material.

7. The water meter antifreeze pipe assembly according to claim 4, characterized in that: The explosion-proof sleeve (200) is made of a tough rubber material, and the expansion sleeve (500) is made of a tough rubber material.

8. The water meter antifreeze pipe assembly according to claim 4, characterized in that: The middle section of the antifreeze pipe (100) is provided with a ring clamping groove (102), and the upper sleeve (201) and the lower sleeve (202) are completely clamped into the ring clamping groove (102) to achieve position limiting.

9. The water meter antifreeze pipe assembly according to any one of claims 5 to 8, characterized in that: One end of the antifreeze pipe (100) is provided with a screw thread, and the other end is provided with an antifreeze nut (400). A snap ring is provided at the end of the antifreeze nut (400), and the snap ring cooperates with a convex ring provided at the end of the antifreeze pipe (100) to achieve position limiting.

10. The water meter antifreeze pipe assembly according to claim 9, characterized in that: The antifreeze nut (400) is filled with a sealing O-ring.

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