A kind of antifreeze bathroom copper pipe

Abstract

The utility model relates to the technical field of pipelines, specifically to an antifreeze sanitary copper pipe, comprising a pipe body, a moving ring, a spring and an elastic expansion membrane. The moving ring and the inner wall of the pipe body form a moving pair along the length direction of the pipe body, an annular water retaining portion is formed on the moving ring, and an annular side wall is also formed on the top of the moving ring. A limiting block that can abut against the side wall is arranged at the end of the pipe body, one end of the spring is connected to the bottom end of the moving ring and the other end is fixed to the pipe body, an outwardly convex annular expansion portion is formed on one side of the end of the pipe body, the edge of the elastic expansion membrane is fixed to the pipe body to separate the expansion portion from the pipe body, and the elastic expansion membrane can be covered when the side wall moves up. By arranging the elastic expansion membrane to cooperate with the expansion portion, when water freezes, the elastic expansion membrane can be deformed and concave to provide additional space to accommodate the volume change caused by the phase change, so that the thread of the pipe body can be prevented from being damaged by the expanded ice cubes to affect the sealing performance, leakage can be prevented from occurring, and the low-temperature working performance of the copper pipe can be improved.

Description

Technical Field

[0001] The utility model relates to the field of pipelines, in particular to an antifreeze bathroom copper pipe. Background Art

[0002] Copper pipe is a kind of pipe used in bathroom facilities. It is popular for its good electrical conductivity and thermal conductivity. It is usually made of red copper (pure copper) and is often used to make shower heads, faucets and other plumbing accessories.

[0003] When water in a water pipe in a low-temperature environment freezes and freezes, its volume will expand. The explosion-proof performance of copper pipes is better than that of common plastic water pipes, so there will be no cracking problem. However, the threads at the connection between the end of the copper pipe and the water pipe are easily damaged by the squeezing of ice cubes during the freezing process, resulting in a decrease in the sealing of the connection, causing leakage. The purpose of the utility model is to propose a new copper pipe structure to solve the above technical problems. Utility Model Content

[0004] The utility model aims to provide an antifreeze bathroom copper pipe to solve the problems mentioned in the background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a tube body, a movable ring, a spring and an elastic telescopic membrane, the movable ring and the inner wall of the tube body constitute a movable pair along the length direction of the tube body, an annular water retaining portion is formed on the movable ring, and an annular side wall is also formed on the top of the movable ring. A limit block that can abut against the side wall is arranged at the end of the tube body, one end of the spring is connected to the bottom end of the movable ring and the other end is fixed to the tube body, an outwardly convex annular expansion portion is formed on one side of the end of the tube body, the edge of the elastic telescopic membrane is fixed to the tube body to separate the expansion portion from the tube body, and the side wall can cover the elastic telescopic membrane when it moves up.

[0006] In order to optimize the above technical solution, further measures are taken: the water retaining part is narrow at the top and wide at the bottom to make the water retaining part truncated cone-shaped, and its design is intended to converge the water flow and reduce the loss caused by the movement of the water retaining part driven by the water flow.

[0007] As a further improvement of the above technical solution: a connecting ring is provided in the tube body, and the spring is fixed to the connecting ring to fix the spring and the tube body. The connecting ring can block the water flow while connecting the spring and the tube body, thereby preventing the spring from being stretched and deformed under the direct impact of the water flow.

[0008] As a further improvement of the technical solution: a first connecting part and a second connecting part are respectively formed at the top end of the tube body, and threads are respectively provided on the first connecting part and the second connecting part for threaded connection with the inner side and the outer side of the water pipe end. The double threaded connection has good watertightness, and the other end can still serve as a connection after the thread on one side is twisted and deformed.

[0009] As an improvement to the above technical solution: the first connecting portion and the second connecting portion are located above the expansion portion and adjacent to the expansion portion.

[0010] From the above description of the structure of the utility model, it can be seen that compared with the prior art, the utility model has the following advantages:

[0011] The utility model provides an antifreeze bathroom copper pipe. By arranging an elastic expansion membrane in cooperation with an expansion part, when water freezes, the elastic expansion membrane can be deformed and concave to provide additional space to accommodate the volume change caused by the phase change. The thread of the pipe body can be prevented from being damaged by the expanded ice cubes to affect the sealing, leakage can be prevented, and the low-temperature working performance of the copper pipe can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0013] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0014] In the figure: tube body 1, connecting ring 101, first connecting part 102, second connecting part 103, moving ring 2, water retaining part 201, side wall 202, limit block 203, spring 3, elastic expansion membrane 4, expansion part 401 DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] Example

[0017] See also Figure 1 The utility model provides an antifreeze bathroom copper pipe, including a pipe body 1, a movable ring 2, a spring 3 and an elastic telescopic membrane 4. The top of the pipe body 1 is respectively formed with a first connecting part 102 and a second connecting part 103. The first connecting part 102 and the second connecting part 103 are respectively provided with threads for threaded connection with the inner side and the outer side of the water pipe end.

[0018] The movable ring 2 and the inner wall of the tube body 1 form a movable pair along the length direction of the tube body 1. An annular water retaining portion 201 is formed on the movable ring 2. The water retaining portion 201 is narrow at the top and wide at the bottom, so that the water retaining portion 201 is in the shape of a truncated cone. An annular side wall 202 is also formed on the top of the movable ring 2. A limit block 203 that can resist the side wall 202 is provided at the end of the tube body 1.

[0019] One end of the spring 3 is connected to the bottom end of the movable ring 2 and the other end is fixed to the tube body 1. A connecting ring 101 is provided inside the tube body 1. The spring 3 is fixed to the connecting ring 101 to fix the spring 3 to the tube body 1. An outwardly convex annular expansion portion 401 is formed on one side of the end of the tube body 1.

[0020] The edge of the elastic membrane 4 is fixed to the tube body 1 to separate the expansion part 401 from the tube body 1. The first connecting part 102 and the second connecting part 103 are located above and adjacent to the expansion part 401. The side wall 202 can cover the elastic membrane 4 when it moves upward.

[0021] The elastic stretch membrane 4 refers to a membrane-like component made of an elastic material that can be stretched to produce elastic deformation. The elastic material belongs to the prior art content and is known to those skilled in the art. The specific material of the elastic material is not the content to be protected by the applicant. In the specific implementation, the technicians can choose elastic materials of different materials according to actual needs, which will not have a substantial impact on the technical solution.

[0022] Working principle: In the water outlet state, the water flow impacts the water retaining part 201, drives the moving ring 2 to move and stretches the spring 3. At this time, the side wall 202 will block the elastic telescopic membrane 4 to prevent the elastic telescopic membrane 4 from being impacted by the water flow and being damaged. The side wall 202 can be stuck by the limit block 203 to prevent the spring 3 from being overstretched and causing irreversible deformation. In the cut-off state, the spring 3 resets and the moving ring 2 does not block the elastic telescopic membrane 4. At this time, the elastic telescopic membrane 4 can be in direct contact with the water flow.

[0023] When the water in the tube body 1 freezes in the cut-off state, the elastic telescopic membrane 4 can be concave to allow the ice at the end of the tube body 1 to spread toward the expansion portion 401, concentrating the volume change of the water at the end of the tube body 1 during the freezing process at the expansion portion 401, which helps to protect the connection between the end of the tube body 1 and the water pipe, avoiding damage to the connection and causing leakage.

[0024] The ends of the tube body 1 are threadedly connected to the inner side and the outer side of the tube body 1 respectively through a first connection part 102 and a second connection part 103 provided with threads. The double threaded connection has better firmness, and when the thread connecting the first connection part 102 and the tube body 1 is damaged by ice, the second connection part 103 can still be stably connected to the water pipe to avoid leakage.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A frost-proof bathroom copper pipe, characterized in that: include: tube(1); A moving ring (2), the moving ring (2) and the inner wall of the tube body (1) form a moving pair along the length direction of the tube body (1), an annular water retaining portion (201) is formed on the moving ring (2), an annular side wall (202) is also formed on the top of the moving ring (2), and a limiting block (203) that can abut against the side wall (202) is provided at the end of the tube body (1); A spring (3), one end of the spring (3) is connected to the bottom end of the moving ring (2) and the other end is fixed to the tube body (1); The elastic telescopic membrane (4) has an outwardly convex annular expansion portion (401) formed on one side of the end of the tube body (1). The edge of the elastic telescopic membrane (4) is fixed to the tube body (1) to separate the expansion portion (401) from the tube body (1). When the side wall (202) moves upward, it can cover the elastic telescopic membrane (4).

2. The antifreeze bathroom copper pipe according to claim 1, characterized in that: The water retaining portion (201) is narrow at the top and wide at the bottom, so that the water retaining portion (201) is in a truncated cone shape.

3. The antifreeze bathroom copper pipe according to claim 1, characterized in that: A connecting ring (101) is arranged inside the tube body (1), and the spring (3) is fixed to the connecting ring (101) to achieve the fixation of the spring (3) and the tube body (1).

4. The antifreeze bathroom copper pipe according to any one of claims 1 to 3, characterized in that: A first connection portion (102) and a second connection portion (103) are respectively formed at the top end of the tube body (1), and threads are respectively provided on the first connection portion (102) and the second connection portion (103) for threaded connection with the inner side and the outer side of the water pipe end.

5. The antifreeze bathroom copper pipe according to claim 4, characterized in that: The first connection portion (102) and the second connection portion (103) are located above the expansion portion (401) and are adjacent to the expansion portion (401).

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