Aligning pipe connecting piece

Abstract

The utility model relates to a self-aligning pipe connector which comprises a cylindrical main connector and a cylindrical auxiliary connector, and one end of the main connector is in threaded connection with one end of the auxiliary connector. The other end of the main connector and the other end of the auxiliary connector are each provided with a strip-shaped sliding hole, a main connector sleeve capable of sliding relatively is arranged in the strip-shaped sliding hole of the main connector, an auxiliary connector sleeve capable of sliding relatively is arranged in the strip-shaped sliding hole of the auxiliary connector, and the main connector sleeve and the auxiliary connector sleeve freely rotate relative to the corresponding strip-shaped sliding holes. A flexible pipe fitting which is connected into a whole in a sealed mode is arranged between the main connector sleeve and the auxiliary connector sleeve, limiting sleeve openings corresponding to pipe fittings to be connected are formed in the end of the main connector sleeve and the end of the auxiliary connector sleeve, sealing rings are arranged in the limiting sleeve openings, and when the limiting sleeve openings and the pipe fittings to be connected are inserted in place, the limiting sleeve openings abut against the sealing rings to form sealing. The structure has the functions of pipe connection aligning and extension adjusting, is convenient to use, and is suitable for being used as pipe connectors of various pipe fittings in the building field.

Description

Technical Field

[0001] The utility model relates to the field of building pipe connections and is a centering pipe connection piece. Background Art

[0002] Existing building pipe joints are usually sleeve-type pipe joints, which use welding to connect the two ends of the pipe joint to the pipe fittings. This type of pipe joint usually has relatively fixed dimensions and the directions of the pipe fittings at both ends are also relatively fixed. It does not have the function of eccentric adjustment, that is, when the pipe fittings at both ends of the pipe joint are not aligned, this type of pipe joint is usually difficult to achieve an optimal docking state, affecting its use. In order to solve this problem, the prior art discloses a pipe joint with an eccentric adjustment function, such as the authorization announcement number CN212564809U published in the Chinese patent literature, the authorization announcement date is February 19, 2021, and the utility model name is "A new type of pipe joint that can facilitate pipe centering connection". It discloses that it adapts to the offset of the upper and lower alignment of the upper drain pipe and the lower drain pipe by eccentric rotation, which is conducive to the alignment connection of the external pipe and prolongs the service life of the pipe. However, the defect of this solution is that when it is damaged, like the existing pipe joint, it is still not easy to disassemble and replace. It can only be repaired by cutting off the entire section and then performing heat-melting butt-jointing on the outer sleeve joint. It is obviously more labor-intensive and the cost of maintenance and replacement is high. In addition, existing pipe joints usually require the pipe fittings to be installed step by step, that is, the pipe fitting is connected to the pipe joint, and the pipe joint is connected to another pipe fitting, and so on. It is not possible to install the pipe fittings first and then install the pipe joints. As a result, the actual position of the pipe fitting head and the actual length of the pipe fitting are often difficult to pre-control. When the pipe fittings meet at the floor slab, it is difficult to avoid it and cutting is required before further pipe connection operations, which is relatively cumbersome. Therefore, there is a need to improve the existing pipe joints. Summary of the Invention

[0003] To overcome the above-mentioned shortcomings, the present invention aims to provide a self-aligning pipe connector in the art that addresses the technical problems of existing similar pipe connectors, which are inconvenient to use, difficult to disassemble and replace after installation, and labor-intensive and costly to maintain. This objective is achieved through the following technical solution.

[0004] A centering pipe connector, which includes a cylindrical main joint and a secondary joint, one end of the main joint is threadedly connected to one end of the secondary joint; the other ends of the main joint and the secondary joint are each provided with a strip sliding hole, a main joint sleeve that slides relatively is provided in the strip sliding hole of the main joint, and a secondary joint sleeve that slides relatively is provided in the strip sliding hole of the secondary joint, the main joint sleeve and the secondary joint sleeve are both freely rotatable relative to their respective corresponding strip sliding holes, and a flexible pipe fitting that is sealed and connected as one is provided between the main joint sleeve and the secondary joint sleeve, the ends of the main joint sleeve and the secondary joint are both formed with a limiting sleeve corresponding to the pipe fitting to be connected, a sealing ring is provided in the limiting sleeve, and when the limiting sleeve and the pipe fitting to be connected are plugged into place, they press against the sealing ring to form a seal. With the above structure, the centering pipe connector not only allows eccentric adjustment by sliding the main and auxiliary connector sleeves relative to the main and auxiliary connectors, but also the main and auxiliary connectors can adjust the length of the pipe connection through threaded engagement. As a result, when the entire pipe connection is used, the spacing requirement between the two pipes is relatively relaxed. The pipes can be installed first, and then the pipe connector can be connected, thus avoiding unfavorable positions. Furthermore, if a problem with the pipe connector requires replacement, the pipe connector can be removed from between the two pipes by simply rotating the main and auxiliary connectors relative to each other, making replacement and maintenance particularly convenient.

[0005] Both the main and auxiliary joint sleeves comprise a sleeve body and a locking ring. Specifically, one end of the sleeve body is provided with a limiting portion that is positioned within the corresponding inner end of the strip-shaped sliding hole. The sleeve body's outer diameter is provided with external threads that are locked to the inner threads of the locking ring. The locking ring is positioned within the outer end of the strip-shaped sliding hole. When the locking ring is tightened, the locking ring and the sleeve body's limiting portion are clamped to the inner and outer sides of the strip-shaped sliding hole, securing the main and auxiliary joint sleeves relative to the strip-shaped sliding hole. When the locking ring is loosened, the main and auxiliary joint sleeves are free to rotate relative to the strip-shaped sliding hole. The above structure is a specific implementation of the pipe joint and is relatively easy to assemble and use.

[0006] The flexible pipe is a corrugated hose. Through this structure, the corrugated hose has good expansion and contraction characteristics, so it is more stable and reliable to use.

[0007] The outer diameters of the main joint and the auxiliary joint are both provided with screwing parts adapted for manual screwing or tool screwing operations, thereby facilitating the screwing connection operation of the main joint and the auxiliary joint.

[0008] The main joint sleeve, the auxiliary joint sleeve and the flexible pipe are welded together, and the structural sealing is more reliable.

[0009] The utility model has the functions of centering and length adjustment, is convenient to assemble and use as a whole, has loose requirements on the installation position of the pipe fittings, is easy to avoid unfavorable pipe connection positions, is easy to disassemble and replace when damaged, saves time and effort in maintenance, and has low cost, and is suitable for use as a pipe connector for various pipe fittings in the construction field. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic cross-sectional structural diagram of the present utility model.

[0011] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure in use status.

[0012] The serial numbers and names in the figure are: 1. Main joint, 2. Auxiliary joint, 3. Strip sliding hole, 4. Main joint sleeve, 5. Auxiliary joint sleeve, 6. Flexible pipe fitting, 7. Sealing ring, 8. Locking ring, 9. Pipe fitting to be connected. Implementation Method

[0013] like Figure 1 、 Figure 2 As shown, the centering pipe joint includes a cylindrical main joint 1 and an auxiliary joint 2. One end of the main joint 1 is threadedly connected to one end of the auxiliary joint 2. The other ends of the main joint 1 and the auxiliary joint 2 are each provided with a strip sliding hole 3. A main joint sleeve 4 that slides relatively is provided in the strip sliding hole 3 of the main joint 1, and an auxiliary joint sleeve 5 that slides relatively is provided in the strip sliding hole 3 of the auxiliary joint 2. The main joint sleeve 4 and the auxiliary joint sleeve 5 are both free to rotate relative to their respective corresponding strip sliding holes 3. Specifically, the main joint sleeve 4 and the auxiliary joint sleeve 5 each include a sleeve body and The locking ring 8, i.e., one end of the plug-in sleeve body is provided with a limiting portion that is limited to the inner end of the corresponding strip-shaped sliding hole 3. The outer diameter of the plug-in sleeve body is provided with an external thread that is locked and connected to the internal thread of the locking ring 8. The locking ring 8 is limited to the outer end of the strip-shaped sliding hole 3. When the locking ring 8 is locked, the locking ring 8 and the limiting portion of the plug-in sleeve body are clamped to the inner and outer sides of the strip-shaped sliding hole 3, that is, the main joint sleeve 4 and the auxiliary joint sleeve 5 are fixed relative to the strip-shaped sliding hole 3; when the locking ring 8 is loosened, the main joint sleeve 4 and the auxiliary joint sleeve 5 are free to rotate relative to the strip-shaped sliding hole 3. A flexible pipe 6 is provided between the main joint sleeve 4 and the auxiliary joint sleeve 5, which is connected as one body by welding. The flexible pipe 6 is preferably a corrugated hose. The ends of the main joint sleeve 4 and the auxiliary joint 2 are both formed with a limiting sleeve corresponding to the pipe 9 to be connected. A sealing ring 7 is provided in the limiting sleeve. When the limiting sleeve and the pipe 9 to be connected are plugged into place, they press against the sealing ring 7 to form a seal. The outer diameters of the main joint 1 and the auxiliary joint 2 are both provided with screwing portions adapted for manual screwing or tool screwing operations, thereby facilitating the screwing connection operation of the main joint 1 and the auxiliary joint 2 .

[0014] There are three main ways to use the centering pipe joint: the first way is to loosen the locking rings 8 of the main joint sleeve 4 and the auxiliary joint sleeve 5, and use the main joint sleeve 4 and the auxiliary joint sleeve 5 to slide and rotate freely relative to the corresponding strip sliding holes 3 in their respective main joints 1 and auxiliary joints 2, so that the main joint sleeve 4 is first docked with the fixed pipe A at one end, and then the other pipe B is docked with the auxiliary joint sleeve 5. After docking, the pipe B is fixed, and then the main joint 1 and the auxiliary joint 2 are rotated relative to each other, so that the main joint sleeve 4 and the auxiliary joint sleeve 5 are respectively docked with the pipe A and the pipe B to form a seal. After sealing, the locking rings 8 of the main joint sleeve 4 and the auxiliary joint sleeve 5 are locked and fixed, and the docking use of the pipe joint is completed.

[0015] In the second method, pipe fittings A and B are both fixed, and the required spacing is left between pipe fittings A and B. The entire length of the self-aligning pipe connector is adjusted to the spacing between pipe fittings A and pipe fittings B by relatively rotating the main joint 1 and the auxiliary joint 2, and the self-aligning pipe connector is placed in the spacing. The locking rings 8 of the main joint sleeve 4 and the auxiliary joint sleeve 5 are loosened, and the main joint sleeve 4 and the auxiliary joint sleeve 5 are freely slid and rotated relative to the corresponding strip sliding holes 3 in their respective main joints 1 and auxiliary joints 2 to dock the main joint sleeve 4 with pipe fitting A, and then the main joint 1 and the auxiliary joint 2 are relatively rotated to dock the auxiliary joint sleeve 5 with pipe fitting B until the main joint sleeve 4 and the auxiliary joint sleeve 5 are respectively docked with pipe fittings A and pipe fitting B to form a seal. After sealing, the locking rings 8 of the main joint sleeve 4 and the auxiliary joint sleeve 5 are locked and fixed, and the docking use of the pipe connector is completed.

[0016] The third method is that when the centering pipe connector needs to be replaced, it is only necessary to reverse the operation of the second method to remove the centering pipe connector, replace the sealing ring 7 or reinstall a new centering pipe connector, which is more convenient to use.

Claims

1. A centering pipe connector, comprising a cylindrical main connector (1) and an auxiliary connector (2), wherein one end of the main connector (1) is threadedly connected to one end of the auxiliary connector (2); characterized in that The other ends of the main joint (1) and the auxiliary joint (2) are both provided with a strip-shaped sliding hole (3); a main joint sleeve (4) that slides relatively is provided in the strip-shaped sliding hole (3) of the main joint (1); and an auxiliary joint sleeve (5) that slides relatively is provided in the strip-shaped sliding hole (3) of the auxiliary joint (2); the main joint sleeve (4) and the auxiliary joint sleeve (5) are both freely rotatable relative to their respective corresponding strip-shaped sliding holes (3); and a flexible pipe (6) that is sealed and connected as one body is provided between the main joint sleeve (4) and the auxiliary joint sleeve (5); the ends of the main joint sleeve (4) and the auxiliary joint (2) are both formed with a limiting sleeve corresponding to the pipe (9) to be connected; a sealing ring (7) is provided in the limiting sleeve, and when the limiting sleeve and the pipe (9) to be connected are plugged into place, they press against the sealing ring (7) to form a seal.

2. The centering pipe connector according to claim 1, characterized in that The main joint sleeve (4) and the auxiliary joint sleeve (5) both include a sleeve body and a locking ring (8), that is, one end of the sleeve body is provided with a limiting portion limited to the inner end of the corresponding strip sliding hole (3), the outer diameter of the sleeve body is provided with an external thread and is locked with the internal thread of the locking ring (8), the locking ring (8) is limited to the outer end of the strip sliding hole (3), when the locking ring (8) is locked, the locking ring (8) and the limiting portion of the sleeve body are clamped on the inner and outer sides of the strip sliding hole (3), that is, the main joint sleeve (4) and the auxiliary joint sleeve (5) are fixed relative to the strip sliding hole (3); when the locking ring (8) is loosened, the main joint sleeve (4) and the auxiliary joint sleeve (5) are free to rotate relative to the strip sliding hole (3).

3. The centering pipe connector according to claim 1, characterized in that The flexible pipe (6) is a corrugated hose.

4. The centering pipe connector according to claim 1, characterized in that The outer diameters of the main joint (1) and the auxiliary joint (2) are both provided with screwing portions adapted for manual screwing or tool screwing operations.

5. The centering pipe connector according to claim 1, characterized in that The main joint sleeve (4), the auxiliary joint sleeve (5) and the flexible pipe (6) are welded together.

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