Water return ring with extending part easy to cut

Abstract

The utility model relates to the field of pipe fitting joints, in particular to a water return ring with an easy-to-cut extension part, which mainly solves the problems of poor convenience in connection between a pre-buried water return ring and a pipe fitting and easy leakage in the prior art, and comprises a pipe fitting body which comprises a first connecting part and a second connecting part, the first connecting part is provided with a first interface, a second interface and a first flow channel for connecting the first interface and the second interface, the second connecting part is provided with a third interface and a second flow channel for connecting the third interface and the first flow channel, a metal joint is embedded at the third interface, a boss is convexly arranged on the outer side surface of the metal joint, and a threaded hole is formed in the boss; the boss is in threaded connection with the threaded hole through a screw and is provided with a wire connector, the outer edge of the end face of the third connector extends outwards to form an extension part of an annular structure, the length size of the extension part is 5-80 mm, the thickness size of the extension part is smaller than that of the third connector, and therefore an annular end face is formed at the third connector.

Description

Technical Field

[0001] The utility model relates to the field of pipe fittings joints, in particular to a return water ring with an easily cuttable extension part. Background Art

[0002] The applicant applied for a patent application on January 17, 2022, with the patent application number 202220115852.5 and the patent name "An Extended Hot Water Return Water Ring", which specifically discloses: including a return water ring body, the return water ring body includes a communicating pipe and a U-shaped pipe integrally formed, the communicating pipe is used to communicate with the water inlet pipe, both ends of the U-shaped pipe are used to communicate with the water outlet pipe, a metal connector is embedded in the communicating pipe, the U-shaped pipe includes a first extended water outlet pipe and a second extended water outlet pipe that are symmetric and have the same length, and the first extended water outlet pipe and the second extended water outlet pipe are parallel to each other, the communicating pipe is perpendicular to the plane formed by the first extended water outlet pipe and the second extended water outlet pipe together, a support plate for strengthening and supporting is arranged at the connection part of the communicating pipe and the U-shaped pipe, internal threads are provided on the inner wall of the metal connector, and annular clamping protrusions are arranged on the inner walls of the first extended water outlet pipe and the second extended water outlet pipe. This return water ring is applied to the return water pipe to ensure the rapid outflow of hot water. It includes a communicating pipe and a U-shaped pipe integrally formed, ensuring that the water flow in the water pipe can directly flow back through the U-shaped pipe, and at the same time, the hot water can also be directly transmitted through the communicating pipe; a metal connector is embedded in the communicating pipe to ensure a tighter connection with the water inlet pipe. The U-shaped pipe includes a first extended water outlet pipe and a second extended water outlet pipe that are symmetric and have the same length. Compared with the conventional specifications, the extended distance can provide protection for the water pipe, and at the same time, it increases the contact area between the U-shaped pipe and the water pipe, improving the sealing performance of their cooperation.

[0003] However, in water-using areas such as bathrooms, kitchens, balconies, and terraces, during decoration, due to the inability to accurately control the thickness of the wall finish surface in the early stage, the embedded depth of the return water ring depends entirely on empirical construction, resulting in the connection end surface of the internal thread interface of the return water ring being difficult to be on the same finish surface as the tile laying surface. When the distance between the connection end surface of the internal thread interface of the return water ring and the tile laying surface is too large, it is easy to cause mud to contaminate the connection end surface of the internal thread interface of the return water ring when pasting tiles, and even pour into the internal thread interface. Subsequently, it is necessary to further cut and clean the solidified mud around, resulting in poor connection convenience, and the remaining mud is likely to reduce the connection sealing performance with pipe fittings, causing leakage. Summary of the Utility Model

[0004] Therefore, in view of the above problems, the utility model provides a return water ring with an easily cuttable extension part, which mainly solves the problems of poor connection convenience between the embedded return water ring and pipe fittings and easy leakage in the prior art.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] A water return ring with an easily cuttable extension part, comprising a pipe fitting body. The pipe fitting body includes a first connection part made of plastic and a second connection part provided in the middle of the first connection part. The first connection part has a first interface, a second interface, and a first flow channel connecting the first interface and the second interface. The first connection part is in a U-shaped structure. The second connection part has a third interface and a second flow channel connecting the third interface and the first flow channel. A metal joint made of metal material and in a tubular structure is embedded at the third interface. An internal thread is provided on the metal joint. The metal joint is integrally injection-molded with the pipe fitting body. A boss is convexly provided on the outer side surface of the metal joint. A threaded hole is provided on the boss. A wire joint is provided on the boss through screw-thread connection with the threaded hole. An extension part in a ring structure extends outward from the outer edge of the end face of the third interface. The length dimension of the extension part is 5 mm to 80 mm. The thickness dimension of the extension part is smaller than the thickness dimension of the third interface, so that a ring-shaped end face is formed at the third interface.

[0007] Furthermore, a ring-shaped groove is provided on the end face of the third interface and near the extension part. A through hole is provided on the side surface of the ring-shaped groove and is connected to the outside.

[0008] Furthermore, the wire joint includes a first fixing part in a plate-shaped structure and a second fixing part in a ring-shaped structure. The first fixing part and the second fixing part are integrally connected. A connection hole for the screw to pass through is provided on the first fixing part.

[0009] Furthermore, a support seat for positioning the pipe fitting body is provided at the connection part between the first connection part and the second connection part.

[0010] Furthermore, a clamping part for being easily clamped and installed on a connecting part is provided at one end of the support seat away from the second connection part.

[0011] Furthermore, limiting convex rings are provided on the inner surfaces of the first interface and the second interface.

[0012] By adopting the foregoing technical solution, the beneficial effects of the present utility model are as follows: The return water ring with an easily cuttable extension part is integrally cast and molded through the first connecting part and the second connecting part, and the formed first interface, second interface and third interface enable the hot water ends at each water use point to be connected in sequence. One of the interfaces at the water use point at the farthest end and the water use point at the nearest end is respectively connected to the heating device through the hot water inlet pipe, and at the same time, it is connected to the valve through the third interface to form a hot water circulation system. The hot water heated by the heating device circulates through each water use point in sequence, which can achieve hot water output immediately after opening, reduce the waiting time, as well as the discharge time and discharge volume of the cooling water in the hot water inlet pipe, improve the convenience of use, and save water resources at the same time. Moreover, the extension part arranged at the third interface and having an annular structure can extend the length of the third interface during embedding, prevent mud pollution and blockage of the third interface, improve the cleanliness of the third interface, and after fitting the tiles, by cutting the extension part, it is made to be on the same finished surface as the tile laying surface, improving the aesthetics. At the same time, the extension part facilitates the positioning and installation of the pipe fittings, improves the convenience of connecting with the pipe fittings in the later stage, and the cooperation between the extension part and the end face of the third interface further improves the sealing performance of the connection with the pipe fittings, enhancing the connection sealing performance and avoiding leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a top view structural schematic diagram of an embodiment of the present utility model;

[0014] Figure 2 is a bottom view structural schematic diagram of an embodiment of the present utility model;

[0015] Figure 3 is a front view structural schematic diagram of an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] An embodiment of the present utility model is as follows:

[0018] Refer to Figure 1 、 Figure 2 And Figure 3As shown in the figure, a return water ring with an easily cuttable extension part includes a pipe fitting body 1. The pipe fitting body 1 includes a first connection part 11 made of plastic and a second connection part 12 provided in the middle of the first connection part 11. The first connection part 11 has a first interface 101, a second interface 102, and a first flow channel (not shown in the figure) connecting the first interface 101 and the second interface 102. The first connection part 11 has a U-shaped structure. The second connection part 12 has a third interface 103 and a second flow channel (not shown in the figure) connecting the third interface 103 and the first flow channel. A metal joint 2 made of metal material and having a tubular structure is embedded at the third interface 103. An internal thread 3 is provided on the metal joint 2. The metal joint 2 is integrally injection-molded with the pipe fitting body 1. A boss 4 is convexly provided on the outer side surface of the metal joint 2. A threaded hole is provided on the boss 4. A wire joint 6 is provided on the boss 4 by screwing a screw 5 into the threaded hole. An extension part 7 in a ring structure extends outward along the outer edge of the end surface of the third interface 103. The length dimension of the extension part 7 is 5 mm to 80 mm, preferably 45 mm. The thickness dimension of the extension part 7 is smaller than the thickness dimension of the third interface 103, so that an annular end surface 104 is formed at the third interface 103.

[0019] In this return water ring with an easily cuttable extension part, the first connection part 11 and the second connection part 12 are integrally cast. The formed first interface 101, second interface 102, and third interface 103 enable the hot water ends at each water use point to be connected in sequence. One of the interfaces at the water use point at the farthest end and the water use point at the nearest end is respectively connected to the heating device through a hot water inlet pipe. At the same time, it is connected to a valve through the third interface 103 to form a hot water circulation system. The hot water heated by the heating device circulates through each water use point in sequence, which can achieve hot water output immediately after opening, reduce the waiting time, as well as the discharge time and discharge water volume of the cooling water in the hot water inlet pipe, improve the convenience of use, and save water resources at the same time. Moreover, the extension part 7 in a ring structure provided at the third interface 103 can extend the length of the third interface 103 during embedding, prevent mud pollution and blockage of the third interface 103, improve the cleanliness of the third interface 103, and after fitting the tiles, by cutting the extension part, it is made to be on the same finishing surface as the tile laying surface, improving the aesthetics. At the same time, the extension part facilitates the positioning and installation of the pipe fitting, improves the convenience of later connection with the pipe fitting, and the cooperation between the extension part and the end surface of the third interface 103 further improves the sealing performance of the connection with the pipe fitting, enhancing the connection sealing performance and avoiding leakage.

[0020] Moreover, an annular groove 8 is provided at the end face of the third interface 103 and near the extension part, and a through hole 9 is provided on the side of the annular groove 8 and communicated with the outside. When the pipe fitting is in close fit with the extension part 7, it is convenient to discharge the internal air and dust into the annular groove 8 and discharge it through the through hole 9, maintaining the cleanliness of the inner surface of the extension part 7 and the end face of the third interface 103, and further improving the connection tightness.

[0021] In this embodiment, the wire joint 6 includes a first fixing part 61 in a plate-like structure and a second fixing part 62 in a ring-like structure. The first fixing part 61 and the second fixing part 62 are integrally connected. A connection hole for the screw 5 to pass through is provided on the first fixing part 61, which is convenient for the installation of the wire. During use, the wire can be inserted into the second fixing part 62 in a ring-like structure, then pressed and fixed, and the wire joint is fixed by screwing the screw 5 into the threaded hole. Its installation convenience is good, and the first connecting part 11 and the second connecting part 12 made of plastic, combined with the metal joint connected to the ground wire through the wire, can play a role in preventing electric shock.

[0022] Moreover, a support seat 21 for positioning the pipe fitting body 1 is provided at the connection part between the first connecting part 11 and the second connecting part 12, so that the placement stability is good, preventing deviation and improving the installation convenience. A clamping part 22 for clamping and installing on the connecting piece is provided at one end of the support seat 21 away from the second connecting part 12. Limiting convex rings 23 are provided on the inner surfaces of the first interface 101 and the second interface 102.

[0023] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0024] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] In the present invention, unless otherwise clearly specified or limited, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact via an intermediate medium. Further, a first feature being "above", "over" and "on top of" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. A first feature being "under", "beneath" and "underneath" a second feature may mean that the first feature is directly under or obliquely under the second feature, or simply means that the horizontal height of the first feature is less than that of the second feature.

[0026] Although the present invention has been specifically shown and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims

1. A water return ring with an easily cut extension, characterized in that: The utility model comprises a pipe fitting body, wherein the pipe fitting body comprises a first connection part made of plastic and a second connection part arranged in the middle of the first connection part, the first connection part has a first interface, a second interface and a first flow channel connecting the first interface and the second interface, the first connection part has a U-shaped structure, the second connection part has a third interface and a second flow channel connecting the third interface and the first flow channel, a metal joint made of metal material and having a tubular structure is embedded in the third interface, an internal thread is arranged on the metal joint, the metal joint and the pipe fitting body are integrally injection molded, a boss is convexly arranged on the outer side surface of the metal joint, a threaded hole is arranged on the boss, a wire joint is arranged on the boss through a screw and a threaded connection with the threaded hole, an extension part with a ring structure is extended outward from the outer edge of the end face of the third interface, the length dimension of the extension part is 5mm to 80mm, and the thickness dimension of the extension part is smaller than the thickness dimension of the third interface, so that an annular end face is formed at the third interface.

2. The water return ring with an easily cut extension portion according to claim 1, characterized in that: An annular groove is provided on the end surface of the third interface and close to the extension portion, and a through hole is provided on the side surface of the annular groove that is connected to the outside.

3. The water return ring with an easily cut extension portion according to claim 2, characterized in that: The wire connector comprises a first fixing portion in a plate-like structure and a second fixing portion in a ring-like structure. The first fixing portion and the second fixing portion are integrally connected, and a connecting hole for a screw to pass through is provided on the first fixing portion.

4. The water return ring with an easily cut extension portion according to claim 1, 2 or 3, characterized in that: A support seat is provided at the connection between the first connection part and the second connection part for facilitating the positioning of the pipe body.

5. The water return ring with an easily cut extension portion according to claim 4, characterized in that: An end of the support seat away from the second connecting portion is provided with a clamping portion that is convenient for clamping and installing on the connecting piece.

6. The water return ring with an easily cut extension portion according to claim 5, characterized in that: Limiting convex rings are provided on the inner surfaces of the first interface and the second interface.

Images