A pipe connection device

Abstract

This invention belongs to the technical field of pipe connection equipment, specifically relating to a pipe connection device to solve the problem of inconvenient connection when two adjacent pipes are not aligned on the same axis due to installation errors. The device includes a first pipe and a second pipe. The first pipe has a through-hole first channel, and the second pipe has a through-hole second channel. A rotary telescopic structure is provided between the first and second pipes, enabling a movable and sealed connection between them and connecting the first and second channels. This invention features a movable connection between the first and second pipes, allowing adjustment of the second pipe to a suitable angle and position for connection to another pipe, thus completing the connection of two adjacent pipes. The connection is convenient, quick, and has good applicability.

Description

Technical Field

[0001] This invention belongs to the technical field of pipe connection equipment, and more specifically, relates to a pipe connection device. Background Technology

[0002] With rapid economic development, people's living standards are also getting higher and higher. More and more places are using water heating equipment to heat the indoor environment. During the installation of water heating equipment, a large number of pipes are needed to supply water for circulation. During the laying and maintenance of pipes, due to the limited length of the pipes, the pipes generally need to be connected.

[0003] There are several ways to connect pipes, the most common being welding. This involves directly welding the ends of two adjacent pipes together to complete the connection. Alternatively, a connecting pipe can be placed between two adjacent pipes. The connecting pipe is then fitted over the two pipes to connect them, and then the two pipes and the connecting pipe are welded together in sequence to complete the pipe connection.

[0004] The existing related technologies have the following problems: Direct welding between two adjacent pipes, or welding after connecting two adjacent pipes through a connecting pipe, requires that the two adjacent pipes be set coaxially. In actual application scenarios, there are often errors between adjacent pipes, and they are not on the same axis. Therefore, it is difficult to connect the two pipes by direct welding or by connecting pipe, which is quite inconvenient. Summary of the Invention

[0005] To facilitate the connection between two adjacent pipes, the present invention provides a pipe connection device.

[0006] The pipe connection device provided by this invention adopts the following technical solution:

[0007] A pipe connection device includes a first pipe and a second pipe. The first pipe has a through first channel, and the second pipe has a through second channel. A rotary telescopic structure is provided between the first pipe and the second pipe. The first pipe and the second pipe are movably and sealingly connected through the rotary telescopic structure, and the first channel and the second channel are connected.

[0008] By adopting the above technical solution, when connecting two adjacent pipes, the first pipe is connected to one of the pipes, and the second pipe is connected and communicated with the first pipe through a rotating telescopic structure. The first pipe and the second pipe are movable, so that the first pipe and the second pipe can be adjusted to a suitable angle and position to facilitate connection with the other pipe, thereby completing the connection of two adjacent pipes. The connection is convenient and quick, and has good applicability.

[0009] As a further preferred embodiment, the rotary telescopic structure includes a first connector and a second connector. The first connector is disposed on the first pipe, and the second connector is disposed on the second pipe. The first connector has a third channel communicating with the first channel inside. The third channel extends to an end to form an opening. One end of the second pipe extends from the opening into the third channel. The second pipe is slidably disposed along the opening direction of the third channel. The second connector is in contact with the inner wall of the third channel.

[0010] By adopting the above technical solution, the end of the second pipe extends into the third channel. The second connector allows the second pipe to slide and rotate within the third channel, thereby adjusting the relative position and angle of the second pipe and the first pipe. The adjustment is simple and convenient, improving the efficiency of pipe connection.

[0011] As a further preferred embodiment, the second connector includes a connecting ring, which is sleeved on the second pipe, and the outer peripheral wall edge of the connecting ring is provided with an arc-shaped chamfer, so that the outer peripheral wall of the connecting ring forms an arc surface.

[0012] By adopting the above technical solution, the outer peripheral wall of the connecting ring is an arc surface, which makes the contact area between the connecting ring and the third channel smaller, thus reducing the friction force on the connecting ring during sliding, making it easier to slide. At the same time, it is also easier for the second pipe to rotate and adjust in all directions, making it more versatile.

[0013] As a further preferred embodiment, the connecting ring is located at the end of the second pipe.

[0014] By adopting the above technical solution, the connecting ring is set at the end of the second pipe, which facilitates the rotation of the second pipe and avoids interference at the end of the second pipe located in the third channel when it rotates.

[0015] As a further preferred embodiment, a sealing element is provided between the connecting ring and the inner wall of the third channel.

[0016] By adopting the above technical solution, the sealing element improves the sealing performance between the connecting ring and the first pipe, preventing water in the pipe from seeping out between the connecting ring and the first pipe.

[0017] As a further preferred embodiment, the sealing element includes one or more O-shaped sealing rings. Preferably, there are two sealing rings, both of which are disposed on the connecting ring. The two sealing rings are coaxially arranged with the connecting ring and are symmetrically arranged. When the connecting ring rotates, the opposite positions on the two sealing rings abut against the inner wall of the third channel.

[0018] By adopting the above technical solution, the sealing performance between the connecting ring and the inner wall of the third channel is improved by setting a sealing ring. Two sealing rings are set. When the second pipe and the third channel are coaxial, the two sealing rings are in uniform contact with the inner wall of the third channel, which provides a good sealing effect between the connecting ring and the third channel. When the connecting ring rotates, the opposite positions on the two sealing rings abut against the inner wall of the third channel. For example, when the top of the outer sealing ring abuts against the inner wall of the third channel, the bottom of the inner sealing ring abuts against the inner wall of the third channel. The cooperation between the two sealing rings ensures that the connecting ring and the inner wall of the third channel maintain a good seal when the second pipe rotates in any direction.

[0019] As a further preferred embodiment, the connecting ring has an installation groove for the sealing ring to be inserted and fitted.

[0020] By adopting the above technical solution, the sealing ring is set in the mounting groove on the connecting ring, making the sealing ring and the connecting ring more stable. When the connecting ring slides or rotates, the sealing ring will not be misaligned, further improving the sealing effect.

[0021] As a further preferred embodiment, the rotary telescopic structure further includes a limiting member disposed at one end of the third channel away from the first pipe.

[0022] By adopting the above technical solution, a limiting component is set in the third channel to block the second connecting component, thereby preventing the second pipe from separating from the first pipe when sliding.

[0023] As a further preferred embodiment, the limiting member includes a limiting ring, and an annular groove for placing the limiting ring is provided on the inner wall of the third channel. There is a gap between the limiting ring and the inner wall of the annular groove. When the second pipe slides to the farthest position away from the first pipe, the limiting ring abuts against the second connecting member.

[0024] By adopting the above technical solution, the limiting ring is located in the annular groove, so that the position of the limiting ring relative to the third channel is fixed, which can block the position of the second connector. When the second pipe rotates, the limiting ring moves in the annular groove with the rotation direction of the second pipe, avoiding interference with the rotation of the second pipe.

[0025] As a further preferred embodiment, an avoidance groove is provided on the inner wall of the opening.

[0026] By adopting the above technical solution, an avoidance groove is set at the opening to prevent interference between the opening and the outer wall of the second pipe when the second pipe rotates.

[0027] In summary, the present invention has at least the following beneficial technical effects:

[0028] 1. When connecting two adjacent pipes, the first pipe is connected to one of the pipes, and the second pipe is connected and communicated with the first pipe through a rotating telescopic structure. The first and second pipes are movable, so that the first and second pipes can be adjusted to a suitable angle and position to facilitate the connection of the other pipe, thereby completing the connection of two adjacent pipes. The connection is convenient and quick, and has good applicability.

[0029] 2. When connecting two adjacent pipes, the first pipe is connected to one of the pipes, and the second pipe is connected and communicated with the first pipe through a rotating telescopic structure. The first and second pipes are movable, so that the first and second pipes can be adjusted to a suitable angle and position to facilitate the connection of the other pipe, thereby completing the connection of two adjacent pipes. The connection is convenient and quick, and has good applicability.

[0030] 3. The limiting ring is located in the annular groove, which fixes the position of the limiting ring. The limiting ring can block the position of the second connector, preventing the second pipe from separating from the first pipe when sliding. When the second pipe rotates, the limiting ring moves in the annular groove in the direction of rotation of the second pipe, avoiding interference with the rotation of the second pipe. Attached Figure Description

[0031] Figure 1 This is a cross-sectional structural schematic diagram of an embodiment of the present invention;

[0032] Figure 2 yes Figure 1 A schematic diagram of the overall structure of the distribution in Part A of the central government;

[0033] Figure 3 This is a schematic diagram of the upward deflection cross-sectional structure of the second pipeline according to an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the downward deflection cross-sectional structure of the second pipeline according to an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the front view structure of the second pipe according to an embodiment of the present invention.

[0036] In all the accompanying drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0037] 1. First pipe; 11. First channel; 2. Second pipe; 21. Second channel; 3. Rotary telescopic structure; 31. First connector; 311. Third channel; 3111. Annular groove; 312. Opening; 3121. Clearance groove; 32. Second connector; 321. Connecting ring; 3211. Chamfered corner; 3212. Mounting groove; 33. Seal; 331. Sealing ring; 34. Limiting element; 341. Limiting ring. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0039] In the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0040] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] The following is in conjunction with the appendix Figure 1-5 The present invention will be described in further detail below.

[0043] This invention discloses a pipe connection device.

[0044] Reference Figure 1-5A pipe connection device is provided, which is disposed between two adjacent pipes to connect and communicate the two adjacent pipes. It is suitable for use in scenarios where the two adjacent pipes are coaxial or have a small angle between them. It includes a first pipe 1, a second pipe 2, and a rotary telescopic structure 3. The first pipe 1 has a through first channel 11 along the axial direction, and the second pipe 2 has a through second channel 21 along the axial direction. The rotary telescopic structure 3 is disposed between the first pipe 1 and the second pipe 2. When connecting the two adjacent pipes, the first pipe 1 is fixedly installed on another pipe, and the second pipe 2 is connected to the first pipe 1 through the rotary telescopic structure 3 in a movable and sealed manner, thereby communicating the first channel 11 and the second channel 21. The distance and angle between the two ends of the first pipe 1 and the second pipe 2 can be adjusted. Then, the second pipe 2 is connected to another pipe, thus facilitating the connection and communication of the two adjacent pipes.

[0045] In a preferred embodiment, the rotary telescopic structure 3 includes a first connector 31 and a second connector 32. The first connector 31 is fixedly connected to the first pipe 1, and a third channel 311 communicating with the first channel 11 is formed inside the first connector 31. The third channel 311 extends to the end of the second pipe 2 to form an opening 312. The second connector 32 is disposed on the second pipe 2, and one end of the second pipe 2 extends from the opening 312 into the interior of the third channel 311. The second pipe 2 is slidably disposed along the opening direction of the third channel 311, and the second connector 32 fits against the inner wall of the third channel 311, so that the second pipe 2 can connect with the first channel 11. The pipes 1 slide relative to each other, adjusting the distance between the two ends of the second pipe 2 and the first pipe 1 to accommodate connections between two adjacent pipes at different distances; at the same time, the second pipe 2 deflects at a certain angle through the second connector 32, which can adjust the angle between the second pipe 2 and the first pipe 1. An avoidance groove 3121 is provided on the inner wall of the opening 312 to prevent interference between the opening 312 and the outer wall of the second pipe 2 when the second pipe 2 rotates; the first connector 31 can be a straight, curved, or bent connecting pipe, so that the angle of the second pipe 2 during sliding and deflection is different, and the specific one can be selected according to the actual use.

[0046] Specifically, the second connector 32 includes a connecting ring 321, which is sleeved on the end of the second pipe 2 located inside the third channel 311. The connecting ring 321 and the second pipe 2 are integrally formed. The outer peripheral wall edge of the connecting ring 321 is provided with an arc-shaped chamfer 3211, so that the outer peripheral wall of the connecting ring 321 forms an arc surface. The outer peripheral wall of the connecting ring 321 contacts the inner wall of the third channel 311, so that the contact area between the connecting ring 321 and the third channel 311 is small, the friction force on the connecting ring 321 is small when sliding, which facilitates sliding and also facilitates the second pipe 2 to rotate and adjust in various directions, thus improving its applicability.

[0047] To improve the sealing performance between the connecting ring 321 and the third channel 311, a sealing element 33 is provided between the inner wall of the connecting ring 321 and the third channel 311. The sealing element 33 includes one or more O-shaped sealing rings 331. Preferably, two sealing rings 331 are provided, both of which are disposed on the connecting ring 321. To improve the installation stability of the sealing rings 331, the connecting ring 321 is provided with mounting grooves 3212 for the sealing rings 331 to be inserted and fitted. When the connecting ring 321 slides or rotates, the sealing rings 331 will not be misaligned. The two sealing rings 331 are coaxially arranged with the connecting ring 321 and are symmetrically arranged. When the second pipe 2 and the third channel 311 are coaxial, the two sealing rings 331 are in uniform contact with the inner wall of the third channel 311, which provides a good sealing effect between the connecting ring 321 and the third channel 311. When the second pipe 2 drives the connecting ring 321 to rotate, the opposite positions on the two sealing rings 331 abut against the inner wall of the third channel 311. For example, when the upper half of the outer sealing ring 331 abuts against the inner wall of the third channel 311, the lower half of the inner sealing ring 331 abuts against the inner wall of the third channel 311. The cooperation between the two sealing rings 331 ensures that the connecting ring 321 and the inner wall of the third channel 311 maintain good sealing performance when the second pipe 2 rotates to any direction.

[0048] Reference Figure 1The rotary telescopic structure 3 also includes a limiting member 34, which is disposed at the end of the third channel 311 away from the first pipe 1. When the second pipe 2 slides to its furthest position away from the first pipe 1, the limiting member 34 blocks the second connecting member 32, thereby preventing the second pipe 2 from separating from the first pipe 1 during sliding. When the second pipe 2 slides to the end of the third channel 311, the connecting ring 321 abuts against the limiting member 34. In this embodiment, the limiting member 34 includes a limiting ring 341. An annular groove 3111 for placing a limiting ring 341 is provided on the inner wall of the three channels 311. There is a gap between the limiting ring 341 and the inner wall of the annular groove 3111. The limiting ring 341 is located in the annular groove 3111, so that the position of the limiting ring 341 relative to the third channel 311 is fixed, which can block the position of the second connector 32. When the second pipe 2 rotates, the limiting ring 341 moves in the annular groove 3111 with the rotation direction of the second pipe 2, so as to avoid interfering with the rotation of the second pipe 2.

[0049] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A pipe connection device, characterized in that, It includes a first pipe (1) and a second pipe (2). The first pipe (1) has a through first channel (11) and the second pipe (2) has a through second channel (21). A rotary telescopic structure (3) is provided between the first pipe (1) and the second pipe (2). The first pipe (1) and the second pipe (2) are movably and sealedly connected by the rotary telescopic structure (3) and the first channel (11) and the second channel (21) are connected. The rotary telescopic structure (3) includes a first connector (31) and a second connector (32). The first connector (31) is disposed on the first pipe (1), and the second connector (32) is disposed on the second pipe (2). The first connector (31) has a third channel (311) that communicates with the first channel (11) inside. The third channel (311) extends to the end to form an opening (312). One end of the second pipe (2) extends from the opening (312) into the third channel (311). The second pipe (2) is slidably disposed along the opening direction of the third channel (311). The second connector (32) is in contact with the inner wall of the third channel (311). The second connector (32) includes a connecting ring (321), which is sleeved on the second pipe (2). The outer peripheral wall edge of the connecting ring (321) is provided with an arc chamfer (3211) so that the outer peripheral wall of the connecting ring (321) forms an arc surface. A sealing element (33) is provided between the connecting ring (321) and the inner wall of the third channel (311); The sealing element (33) includes two O-shaped sealing rings (331), both of which are disposed on the connecting ring (321). The two sealing rings (331) are coaxially arranged with the connecting ring (321) and are symmetrically arranged. When the connecting ring (321) rotates, the opposite positions on the two sealing rings (331) abut against the inner wall of the third channel (311). When the upper half of the outer sealing ring (331) abuts against the inner wall of the third channel (311), the lower half of the inner sealing ring (331) abuts against the inner wall of the third channel (311). The cooperation between the two sealing rings (331) ensures that the connecting ring (321) and the inner wall of the third channel (311) maintain good sealing performance when the second pipe (2) rotates to any direction. The rotary telescopic structure (3) also includes a limiting member (34), which is disposed in the third channel (311) at one end away from the first pipe (1).

2. The pipe connection device according to claim 1, characterized in that, The connecting ring (321) is located at the end of the second pipe (2).

3. A pipe connection device according to claim 1, characterized in that, The connecting ring (321) has an installation groove (3212) for the sealing ring (331) to be inserted into.

4. A pipe connection device according to claim 1, characterized in that, The limiting member (34) includes a limiting ring (341). An annular groove (3111) for placing the limiting ring (341) is provided on the inner wall of the third channel (311). There is a gap between the limiting ring (341) and the inner wall of the annular groove (3111). When the second pipe (2) slides to the farthest position away from the first pipe (1), the limiting ring (341) abuts against the second connector (32).

5. A pipe connection device according to claim 1, characterized in that, An avoidance groove (3121) is provided on the inner wall of the opening (312).

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