Pressure pipeline connecting tool

Abstract

The invention relates to the technical field of connecting tools, in particular to a pressure pipeline connecting tool which comprises a connecting sleeve and a main pipe, the surface of the main pipe is movably sleeved with a sealing ring, the surface of the main pipe is movably sleeved with an auxiliary sleeve, and a clamping assembly used for clamping the sealing ring is coaxially arranged on one side of the auxiliary sleeve. A butt joint assembly is arranged on one side of the clamping assembly, a butt joint groove set allowing the butt joint assembly to be embedded is formed in the surface of one side of the connecting sleeve in a matched mode, the clamping assembly comprises a left clamping half ring and a right clamping half ring, and a rotating shaft is fixedly connected to the position, close to the top end, of the right surface of the auxiliary sleeve. The invention aims to solve the problem that the process of carefully adjusting the position of a gasket, ensuring the flatness of the gasket and the like is relatively tedious when a sealing ring is installed on an existing pressure pipeline in a sealing manner.

Description

Technical Field

[0001] The invention relates to the technical field of connecting tools, in particular to a pressure pipeline connecting tool. Background Art

[0002] A pressure pipe is a pipe used to transport fluids with a certain pressure. Its material usually has high strength, good corrosion resistance and sealing properties to adapt to different working conditions. It is widely used in many fields such as industrial production, energy transmission, municipal water supply and gas supply. It is a key infrastructure to ensure the stable operation of various systems. Its quality and performance are directly related to the safety, efficiency and sustainability of the entire fluid transportation process. Pressure pipe connection is a process used to connect pressure pipes in the process of combining two or more sections of pressure pipes. In this process, specific connection tools and methods are used to form a continuous and sealed whole between the pipes, so that fluids with a certain pressure can be safely transported. There are many ways to connect these pipes, such as welding and flange connection. The quality of the pressure pipe connection is crucial. It is directly related to whether the pipeline system can withstand the expected pressure, prevent medium leakage, and ensure the stable operation of the entire pressure pipeline system.

[0003] When connecting existing pressure pipes, it is usually necessary to insert a sealing ring from one end of the pipe, then adjust the position, and then insert another pressure pipe for connection. In the process of inserting the sealing ring, it is necessary to carefully adjust the position of the gasket and ensure its flatness. This process is relatively cumbersome, and the installer needs to spend time to accurately place the sealing ring and ensure its correct installation, which is inconvenient to operate. Summary of the invention

[0004] The purpose of the present invention is to provide a pressure pipe connection device to solve the problem that when installing the sealing ring of the existing pressure pipe seal, it is necessary to carefully adjust the position of the gasket and ensure its flatness, etc., which is a relatively cumbersome process.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A pressure pipe connection device comprises a connecting sleeve and a main pipe, wherein a sealing ring is provided on the surface of the main pipe, an auxiliary sleeve is provided on the surface of the main pipe, a clamping assembly for clamping the sealing ring is coaxially arranged on one side of the auxiliary sleeve, a docking assembly is provided on one side of the clamping assembly, and a docking groove group for embedding the docking assembly is provided on the surface of one side of the connecting sleeve.

[0007] Preferably, the clamping assembly includes a left clamping half ring and a right clamping half ring, and a rotating shaft is fixedly connected to the right surface of the auxiliary sleeve near the top, and the upper end of the left clamping half ring is rotatably connected to the rotating shaft, and the upper end of the right clamping half ring is rotatably connected to the rotating shaft.

[0008] Preferably, the docking assembly comprises a left linkage plate and a right linkage plate, the left linkage plate is fixedly connected to the surface of the left clamping half ring, and the right linkage plate is fixedly connected to the surface of the right clamping half ring.

[0009] Preferably, the upper ends of the left linkage plate and the right linkage plate are fixedly connected with a toggle plate, and the docking groove assembly can be used for the toggle plate to be embedded after the left clamping half ring and the right clamping half ring are closed.

[0010] Preferably, a snap-on docking ring is sleeved on the surface of the auxiliary sleeve, and a flange is fixedly sleeved on the surface of the connecting sleeve, and the flange and the docking ring are detachably connected.

[0011] Preferably, the surface of the docking ring is connected to two symmetrically arranged positioning plate rings, the two positioning plate rings can move simultaneously, and the moving directions of the two positioning plate rings are opposite, and the surface of the docking ring is cooperated to open an avoidance path for the positioning plate ring to move, and the two positioning plate rings are used to limit the left clamping half ring and the right clamping half ring.

[0012] Preferably, the lower ends of the left linkage plate and the right linkage plate are fixedly connected with a shift plate, and the docking groove assembly can allow the shift plate to be embedded after the left clamping half ring and the right clamping half ring are closed, and the ends of the toggle plate and the shift plate extend beyond the outer surface of the clamping assembly.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. First, a sealing ring is sleeved on the surface of the main pipe, and then the auxiliary sleeve is sleeved on the left side of the sealing ring on the surface of the main pipe. Then, the sealing ring is clamped and fixed by the clamping assembly to make the sealing ring fit. Then, the right part of the sealing ring on the surface of the main pipe is inserted into the connecting sleeve, and the docking assembly is embedded into the docking groove assembly to complete the docking. This is beneficial for the installer to not spend time inserting the sealing ring into the pipe to accurately place the gasket and ensure its correct installation as in the past, which is beneficial to improve the speed of pipeline connection;

[0015] 2. By setting the docking assembly, after the left clamping half ring and the right clamping half ring are closed, the position of the docking assembly is just aligned with the docking groove group, so that when the main pipe is inserted into the connecting sleeve, the docking assembly is embedded in the docking groove group, which is conducive to making it difficult for the left clamping half ring and the right clamping half ring to automatically loosen the clamping of the sealing ring after the connecting sleeve is connected to the main pipe;

[0016] 3. By setting the ends of the toggle plate and the shift plate to extend beyond the outer surface of the clamping assembly, the positioning plate ring can cooperate with the toggle plate and the shift plate, so that the auxiliary sleeve cannot move. When the docking ring and the flange are fixed, the positioning plate ring will simultaneously fix the auxiliary sleeve, thereby connecting the main pipe and the connecting sleeve. The positioning plate ring is linked, so that the connecting sleeve and the main pipe can be disassembled by loosening the positioning plate ring. The operation is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the connection between the connecting sleeve and the main pipe of the present invention;

[0018] Figure 2 A vertical cross-sectional schematic diagram of the connection between the connecting sleeve and the main pipe of the present invention;

[0019] Figure 3 It is an explosion diagram of the connection between the connecting sleeve and the main pipe of the present invention;

[0020] Figure 4 It is a structural schematic diagram of the auxiliary sleeve of the present invention;

[0021] Figure 5 It is a structural schematic diagram of the connecting sleeve of the present invention;

[0022] Figure 6 It is a schematic structural diagram of a vertical section of a docking ring of the present invention.

[0023] In the figure: 1. connecting sleeve; 2. flange; 3. first embedding groove; 4. toggle plate; 5. second embedding groove; 6. left linkage plate; 7. third embedding groove; 8. shift plate; 9. right linkage plate; 10. left clamping half ring; 11. right clamping half ring; 12. auxiliary sleeve; 13. sealing ring; 14. main pipe; 15. docking ring; 16. bolt; 17. spacer; 18. nut; 19. positioning plate ring; 20. first slider; 21. double reverse threaded screw; 22. first slide groove; 23. second slider; 24. threaded rod; 25. second slide groove; 26. rotating shaft; 27. avoidance road. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figures 1 to 6 , the present invention provides a technical solution:

[0026] A pressure pipe connection device comprises a connecting sleeve 1 and a main pipe 14, a sealing ring 13 is provided on the surface of the main pipe 14, an auxiliary sleeve 12 is provided on the surface of the main pipe 14, a clamping assembly for clamping the sealing ring 13 is coaxially arranged on one side of the auxiliary sleeve 12, a docking assembly is provided on one side of the clamping assembly, and a docking groove group for embedding the docking assembly is provided on the surface of one side of the connecting sleeve 1.

[0027] The sealing ring 13 is first sleeved on the surface of the main pipe 14, and the auxiliary sleeve 12 is sleeved on the left side of the sealing ring 13 on the surface of the main pipe 14. The sealing ring 13 is then clamped and fixed by the clamping assembly to make the sealing ring 13 fit. The right side of the sealing ring 13 on the surface of the main pipe 14 is then inserted into the connecting sleeve 1, and the docking assembly is embedded in the docking groove assembly to complete the docking. This is beneficial for installers who do not need to spend time inserting the sealing ring 13 into the pipe to accurately place the gasket and ensure its correct installation as in the past, which is beneficial for increasing the speed of pipeline connection.

[0028] Please refer to Figure 4 The clamping assembly includes a left clamping half ring 10 and a right clamping half ring 11. A rotating shaft 26 is fixedly connected to the right surface of the auxiliary sleeve 12 near the top. The upper end of the left clamping half ring 10 is rotatably connected to the rotating shaft 26, and the upper end of the right clamping half ring 11 is rotatably connected to the rotating shaft 26. The bottom ends of the left clamping half ring 10 and the right clamping half ring 11 are closed to clamp them on the surface of the sealing ring 13.

[0029] The docking assembly includes a left linkage plate 6 and a right linkage plate 9. The left linkage plate 6 is fixedly connected to the surface of the left clamping half ring 10, and the right linkage plate 9 is fixedly connected to the surface of the right clamping half ring 11. The docking groove group can be used for the left linkage plate 6 and the right linkage plate 9 to be embedded. After the left clamping half ring 10 and the right clamping half ring 11 are closed, the positions of the left linkage plate 6 and the right linkage plate 9 are just aligned with the docking groove group, so that when the main pipe 14 is inserted into the connecting sleeve 1, the left linkage plate 6 and the right linkage plate 9 are embedded in the docking groove group. By setting the docking assembly, it is beneficial to make it difficult for the left clamping half ring 10 and the right clamping half ring 11 to automatically loosen the clamping of the sealing ring 13 after the connecting sleeve 1 is connected to the main pipe 14.

[0030] The upper ends of the left linkage plate 6 and the right linkage plate 9 are fixedly connected with the toggle plate 4. By increasing the distance between the two toggle plates 4, the left clamping half ring 10 and the right clamping half ring 11 are rotated around the rotating shaft 26 until the lower ends of the left clamping half ring 10 and the right clamping half ring 11 are closed. The distance between the two toggle plates 4 can be increased by using tools familiar to those skilled in the art, such as crowbars, struts, etc. After the docking assembly is embedded in the docking groove group, the tools applied to the toggle plate 4 are released, and the docking groove assembly can be used for the toggle plate 4 to be embedded after the left clamping half ring 10 and the right clamping half ring 11 are closed.

[0031] The surface of the auxiliary sleeve 12 is sleeved with a snap-on docking ring 15, and the surface of the connecting sleeve 1 is fixedly sleeved with a flange 2, and the flange 2 and the docking ring 15 are detachably connected. By setting the detachable connection between the flange 2 and the docking ring 15, the auxiliary sleeve 12 and the connecting sleeve 1 are fixed to each other;

[0032] The flange 2 and the docking ring 15 are specifically detachable in that a plurality of bolts 16 arranged in a circular array are inserted on the surface of the docking ring 15, and holes for the bolts 16 to pass through are provided on the surface of the flange 2. One end of the bolt 16 passing through the flange 2 is threadedly connected with a nut 18. After the bolt 16 passes through the docking ring 15 and then through the flange 2, the nut 18 is tightened to fix the docking ring 15 and the flange 2 together, thereby making the connection between the connecting sleeve 1 and the main pipe 14 stable.

[0033] The surface of the docking ring 15 is connected to two symmetrically arranged positioning plate rings 19, and the two positioning plate rings 19 can move simultaneously and in opposite directions. The surface of the docking ring 15 is provided with an avoidance path 27 for the positioning plate rings 19 to move. The two positioning plate rings 19 are used to limit the left clamping half ring 10 and the right clamping half ring 11. By separating the two positioning plate rings 19, the docking ring 15 can be sleeved on the auxiliary sleeve 12, and then the two positioning plate rings 19 are moved toward each other until the two positioning plate rings 19 are sleeved on the surfaces of the left clamping half ring 10 and the right clamping half ring 11 to limit them.

[0034] See also Figure 6 The specific moving mode of the two positioning plate rings 19 is that the bottom ends of the two positioning plate rings 19 are fixedly connected with the first sliders 20, and the bottom wall of the avoidance path 27 is cooperated to open a first slide groove 22 for the first slider 20 to move. A double reverse thread screw 21 is rotatably connected in the first slide groove 22. The surface of the double reverse thread screw 21 has two sections of threads wound in opposite directions. The two first sliders 20 are respectively placed on the two sections of threads. By rotating the first slide groove 22, due to the action of the two sections of opposite threads, the two first slide grooves 22 move at the same time, and the moving directions are opposite, and they move towards each other at the same time, and move away from each other at the same time;

[0035] Furthermore, the upper ends of the two positioning plate rings 19 are fixedly connected with a second slider 23, and the top wall of the avoidance path 27 is cooperated to open a second slide groove 25 for the second slider 23 to move. A threaded rod 24 is movably inserted in the second slide groove 25, and the threaded rod 24 is threaded through the two second sliders 23 in sequence, and the threaded rod 24 is threadedly connected to the docking ring 15. When the first slider 20 stops and moves, the threaded rod 24 is taken out and inserted into the second slide groove 25. During the insertion process, it is threaded through the two second sliders 23 in sequence, and finally threadedly connected to the docking ring 15, and cooperates with the double reverse threaded screw 21 to limit the upper end of the positioning plate ring 19, thereby increasing the stability of the positioning plate ring 19.

[0036] A pad 17 is arranged between the groove walls of the avoidance path 27. The pad 17 is arranged to allow the bolt 16 to movably pass through. When the bolt 16 passes through the surface of the docking ring 15, it will also pass through the pad 17. By arranging the pad 17 between the groove walls of the avoidance path 27, the supporting force of the groove walls of the avoidance path 27 is increased to prevent the avoidance path 27 from being compressed and deformed too easily, which would cause frequent maintenance of the docking ring 15.

[0037] Please refer to Figure 4 The lower ends of the left linkage plate 6 and the right linkage plate 9 are fixedly connected with a shift plate 8, and the docking groove assembly can be used for the shift plate 8 to be embedded after the left clamping half ring 10 and the right clamping half ring 11 are closed. The ends of the toggle plate 4 and the shift plate 8 extend beyond the outer surface of the clamping assembly. Through such an arrangement, when the positioning plate ring 19 is sleeved on the surfaces of the left clamping half ring 10 and the right clamping half ring 11, the portions of the toggle plate 4 and the shift plate 8 extending beyond the outer surface of the clamping assembly will be located on the side of the positioning plate ring 19, which will block the shift plate 8 and the toggle plate 4 and prevent them from being moved out of the docking groove group, and will make the auxiliary sleeve 12 unable to move anymore. After the docking ring 15 is fixed to the flange 2, operating the positioning plate ring 19 will simultaneously fix the auxiliary sleeve 12, thereby connecting the main pipe 14 to the connecting sleeve 1.

[0038] The docking groove assembly includes a first embedding groove 3, a second embedding groove 5 and a third embedding groove 7. The second embedding groove 5 is used for the left linkage plate 6 and the right linkage plate 9 to be embedded, the first embedding groove 3 is used for the toggle plate 4 to be embedded, and the third embedding groove 7 is used for the shift plate 8 to be embedded.

[0039] The specific solution is as follows: first, the sealing ring 13 is sleeved in the ring groove on the surface of the main pipe 14, and then the docking ring 15 is sleeved on the surface of the main pipe 14 from left to right, and the left clamping half ring 10 and the right clamping half ring 11 are located at the position of the sealing ring 13, and then the two toggle plates 4 are moved back to back, and the two toggle plates 4 move to drive the left linkage plate 6 and the right linkage plate 9 to move respectively, and the movement of the left linkage plate 6 drives the left clamping half ring 10 to rotate around the rotation axis 26, and the movement of the right linkage plate 9 drives the right clamping half ring 11 to rotate around the rotation axis 26 until the left clamping half ring 10 and the right clamping half ring are aligned. The lower end of 11 is closed, the left clamping half ring 10 and the right clamping half ring 11 are integrally pressed on the surface of the sealing ring 13, and then the right end of the main pipe 14 is inserted into the left end of the connecting sleeve 1, until the left linkage plate 6 and the right linkage plate 9 are partially inserted into the docking groove group, at this time, the force applied to the two toggle plates 4 can be removed, and then the main pipe 14 is continued to be moved until the left linkage plate 6 and the right linkage plate 9 are completely inserted into the second embedded groove 5, the toggle plate 4 is inserted into the first embedded groove 3, and the shift plate 8 is inserted into the third embedded groove 7, and then the docking ring 15 is sleeved on the surface of the auxiliary sleeve 12 from left to right, The positioning plate ring 19 is located at the position of the left clamping half ring 10 and the right clamping half ring 11, and then the double reverse threaded screw 21 is rotated. Tools well known to those skilled in the art, such as a screwdriver, can be used. When the double reverse threaded screw 21 is rotated, the two first sliders 20 move toward each other along the track of the first slide groove 22, and the two first sliders 20 respectively drive the two positioning plate rings 19 to move toward each other along the track of the avoidance path 27 until the two positioning plate rings 19 clamp the left clamping half ring 10 and the right clamping half ring 11 respectively, and then the threaded rod 24 is taken out and inserted into the second slide groove 25. During the insertion process, the threaded rod 24 is rotated so that the threaded rod 24 is threaded through the two second sliders 23 in sequence, and finally threadedly connected with the docking ring 15. Finally, the bolt 16 is taken out and passed through the docking ring 15, the gasket 17, and then through the flange 2. The bolt 16 passes through one end of the flange 2 and is put on the nut 18 and tightened to fix the docking ring 15 and the flange 2 together, thereby fixing the connecting sleeve 1 and the main pipe 14. As needed, sealing gaskets can be set between the flange 2 and the docking ring 15, between the connecting sleeve 1 and the clamping assembly, etc. to increase the sealing performance.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure pipe connection device, comprising a connecting sleeve (1) and a main pipe (14), characterized in that: The movable sleeve on the surface of the main pipe (14) is provided with a sealing ring (13), the movable sleeve on the surface of the main pipe (14) is provided with an auxiliary sleeve (12), one side of the auxiliary sleeve (12) is coaxially provided with a clamping component for clamping the sealing ring (13), one side of the clamping component is provided with a docking component, and one side surface of the connecting sleeve (1) is provided with a docking groove group for the docking component to be embedded.

2. A pressure pipe connection tool according to claim 1, characterized in that: The clamping assembly comprises a left clamping half ring (10) and a right clamping half ring (11); a rotating shaft (26) is fixedly connected to the right surface of the auxiliary sleeve (12) near the top; the upper end of the left clamping half ring (10) is rotatably connected to the rotating shaft (26); and the upper end of the right clamping half ring (11) is rotatably connected to the rotating shaft (26).

3. A pressure pipe connection tool according to claim 2, characterized in that: The docking assembly comprises a left linkage plate (6) and a right linkage plate (9), wherein the left linkage plate (6) is fixedly connected to the surface of the left clamping half ring (10), and the right linkage plate (9) is fixedly connected to the surface of the right clamping half ring (11).

4. A pressure pipe connection tool according to claim 3, characterized in that: The upper ends of the left linkage plate (6) and the right linkage plate (9) are both fixedly connected with a toggle plate (4), and the docking groove assembly can be used for the toggle plate (4) to be embedded after the left clamping half ring (10) and the right clamping half ring (11) are closed.

5. A pressure pipe connection tool according to claim 4, characterized in that: The surface of the auxiliary sleeve (12) is sleeved with a snap-fitting docking ring (15), and the surface of the connecting sleeve (1) is fixedly sleeved with a flange (2), and the flange (2) and the docking ring (15) are detachably connected.

6. A pressure pipe connection tool according to claim 5, characterized in that: The surface of the docking ring (15) is connected to two symmetrically arranged positioning plate rings (19), the two positioning plate rings (19) can move simultaneously, and the moving directions of the two positioning plate rings (19) are opposite. The surface of the docking ring (15) is provided with an avoidance path (27) for the positioning plate ring (19) to move, and the two positioning plate rings (19) are used to limit the left clamping half ring (10) and the right clamping half ring (11).

7. A pressure pipe connection tool according to claim 6, characterized in that: The lower ends of the left linkage plate (6) and the right linkage plate (9) are fixedly connected with a shift plate (8); the docking groove assembly allows the shift plate (8) to be inserted after the left clamping half ring (10) and the right clamping half ring (11) are closed; and the ends of the toggle plate (4) and the shift plate (8) extend beyond the outer surface of the clamping assembly.

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