A combined joint for fluid connection

Abstract

The present invention relates to the field of pipeline connection, and in particular to a combined joint for liquid circuit connection, comprising a joint body, the material of the joint body is rubber, a main frame is arranged at the rear of the joint body, a No. 1 threaded rod is rotatably installed through the middle of the main frame, the threads at both ends of the No. 1 threaded rod are symmetrically arranged, and connecting frames are screwed on both ends of the No. 1 threaded rod, and the two connecting frames are respectively located above and below the main frame, and an upper connecting frame is fixedly installed at the end of the upper connecting frame, and a lower connecting frame is fixedly installed at the end of the lower connecting frame, and clamping rings are fixedly installed at the opposite ends of the upper connecting frame and the lower connecting frame, and a clamping plate is arranged on the side of the clamping ring. The present invention improves the combination efficiency, and can adapt to the connection of flanges of different thicknesses on the liquid pipeline, meets the combination requirements, and ensures that there will be no leakage after the combination, and also reduces the replacement cost.

Description

Technical Field

[0001] The invention relates to the field of pipeline connection, in particular to a combined joint for fluid line connection. Background Art

[0002] Fluid circuits usually refer to the paths or systems used to transport, control, distribute and regulate liquids in equipment or systems. Fluid circuit systems can ensure the safe, reliable and efficient transportation of liquids, providing strong guarantees for the normal operation of various equipment and systems.

[0003] In a fluid system, joints are often used to connect and combine fluid pipelines to form a whole fluid pipeline. However, existing joints are often connected to fluid pipelines by flange connection during use, and the connection process requires frequent tightening of multiple bolts and nuts, which is time-consuming and seriously affects the assembly efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a combined joint for fluid connection.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a combined joint for fluid connection, including a joint body, the material of the joint body is rubber, a main frame is arranged at the rear of the joint body, a No. 1 threaded rod is rotatably installed through the middle of the main frame, the threads at both ends of the No. 1 threaded rod are symmetrically arranged, and connecting frames are screwed on both ends of the No. 1 threaded rod, and the two connecting frames are respectively located above and below the main frame, an upper connecting frame is fixedly installed at the end of the upper connecting frame, and a lower connecting frame is fixedly installed at the end of the lower connecting frame, and clamping rings are fixedly installed at the opposite ends of the upper connecting frame and the lower connecting frame, and a clamping plate is arranged on the side of the clamping ring, and an adjusting member is arranged between the clamping ring and the clamping plate, and a pressure seal is arranged at both ends of the joint body.

[0006] Preferably, guide frames are embedded at both ends of the main frame, the upper connecting frame is slidably installed on the upper part of the guide frame, and the lower connecting frame is slidably installed on the lower part of the guide frame. A handwheel is coaxially fixedly installed on the lower end of the No. 1 threaded rod, and a sealing convex ring is coaxially extended on the side of the joint body, and the sealing convex ring is integrally formed with the joint body.

[0007] Preferably, the adjusting member comprises two protruding shells symmetrically installed on the outer surface of the clamp ring, a protruding column is fittedly installed inside the protruding shell, the protruding column passes through the end of the protruding shell, the protruding column is connected to the clamping plate, the side surfaces of the upper connecting frame and the lower connecting frame are rotatably installed with adjusting bolts, the outer surface of the adjusting bolt is tightened with a threaded sleeve, and the threaded sleeve is fixed to the clamping plate.

[0008] Preferably, the outer surface of the protruding shell is inlaid with a shell sleeve, the shell sleeve is fixed to the outer surface of the clamp ring, an L-shaped frame is extended from the end of the protruding column, and the end of the L-shaped frame is fixed to the clamping plate.

[0009] Preferably, the compression seal comprises tightening rings respectively arranged at both ends of the joint body, and protruding ears are extended from the front and rear ends of the tightening rings, and a guide sleeve is fixedly installed on the end of the protruding ear on one of the tightening rings, and a guide rod is fitted inside the guide sleeve, and the guide rod passes through the end of the guide sleeve, and the end of the guide rod is fixed to the protruding ear on the other tightening ring.

[0010] Preferably, two sliding sleeves are symmetrically installed on the outer surface of the main frame, the front end of the sliding sleeve is fixed to the rear protruding ear, a No. 2 threaded rod is rotatably installed in the middle of the rear end of the main frame, a pushing seat is screwed on the outer surface of the No. 2 threaded rod, and the end of the pushing seat is connected to the sliding sleeve.

[0011] Preferably, a No. 2 handwheel is coaxially fixedly installed on the rear end of the No. 2 threaded rod, and two directional sleeves are symmetrically fixedly installed on the rear end of the main frame, the two directional sleeves are located between the two sliding sleeves, and an directional column is fitted inside the directional sleeve, the directional column passes through the rear end of the directional sleeve, the end of the directional column is fixed to the pushing seat, and both ends of the pushing seat are connected to a sub-push frame, the sub-push frame is inclined, the two sub-push frames are symmetrically arranged, and the front end of the sub-push frame is connected to the sliding sleeve.

[0012] Preferably, a connecting seat is fixedly installed at the rear end of the sliding sleeve, a No. 2 connecting shaft is rotatably installed inside the connecting seat, the front end of the split push frame is embedded in the outer surface of the No. 2 connecting shaft, and the rear end of the split push frame is embedded with a No. 1 connecting shaft, and the No. 1 connecting shaft is rotatably installed on the end of the pushing seat.

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

[0014] 1. The No. 1 threaded rod with symmetrical threads at both ends can drive the two connecting frames to move toward each other, and then drive the clamping plates and clamping rings on the upper and lower frames to move toward each other, so that the clamping ring can hold the flange surface of the liquid pipeline and the clamping plate fits the flange side of the liquid pipeline, so as to connect the joint body between the two liquid pipelines to complete the combination. The process does not require frequent tightening of multiple bolts, which effectively shortens the connection time and improves the combination efficiency. At the same time, by rotating the adjusting bolt, the threaded sleeve tightened on the adjusting bolt can be moved, thereby driving the clamping plate to move. At this time, the extended column slides in the extended shell to guide the clamping plate, so that the clamping plate can be translated, so as to adjust the position of the clamping plate to adapt to the connection of flanges of different thicknesses on the liquid pipeline to meet the combination requirements.

[0015] 2. By rotating the No. 2 threaded rod, the push seat can be driven to move. At this time, the directional column slides in the directional sleeve to assist the movement of the push seat. The moved push seat drives the sub-push frame to move, so as to push the two sliding sleeves to slide oppositely on the main frame, thereby driving the two tightening rings to move oppositely. At this time, the guide rod slides in the guide sleeve to guide the two tightening rings, so that the two tightening rings can vertically press the end of the joint body onto the flange of the liquid pipeline, so that the two fit tightly without gaps, to ensure that there will be no leakage after the combination.

[0016] 3. When the joint body is damaged, the damaged joint body can be pressed to deform it, and then it can be pulled out from the tightening ring to replace the joint body. The replacement process only requires replacing the joint body alone, and there is no need to replace the combined joint as a whole, thereby effectively reducing the replacement cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a combined joint for fluid connection according to the present invention;

[0018] Figure 2 A partial view of a combined joint for fluid connection according to the present invention;

[0019] Figure 3 A combined joint for connecting a fluid path according to the present invention Figure 2 Schematic diagram from another perspective;

[0020] Figure 4 It is a schematic diagram of a joint body of a combined joint for fluid path connection of the present invention;

[0021] Figure 5 A combined joint for connecting a fluid path according to the present invention Figure 3 A magnified view of middle;

[0022] Figure 6 It is a schematic diagram of a clamping plate of a combined joint for fluid connection of the present invention;

[0023] Figure 7 This is a usage view of a combined joint for fluid connection according to the present invention.

[0024] In the figure: 1. joint body; 2. guide frame; 3. lower connecting frame; 4. tightening ring; 5. guide sleeve; 6. guide rod; 7. extension ear; 8. clamping plate; 9. clamping ring; 10. No. 1 threaded rod; 11. connecting frame; 12. main frame; 13. pushing seat; 14. No. 2 threaded rod; 15. connecting seat; 16. push frame; 17. No. 1 connecting shaft; 18. directional column; 19. directional sleeve; 20. sliding sleeve; 21. No. 1 handwheel; 22. No. 2 handwheel; 23. adjusting bolt; 24. threaded sleeve; 25. extension shell; 26. extension column; 27. No. 2 connecting shaft; 28. shell sleeve; 29. ​​L-shaped frame; 30. upper connecting frame; 31. sealing convex ring; 32. liquid pipeline. DETAILED DESCRIPTION

[0025] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0026] like Figure 1-Figure 7 A combined joint for fluid connection shown in the figure comprises a joint body 1, the material of the joint body 1 is rubber, a main frame 12 is arranged at the rear of the joint body 1, a No. 1 threaded rod 10 is rotatably installed through the middle of the main frame 12, the main frame 12 plays a role in bearing the No. 1 threaded rod 10, the threads at both ends of the No. 1 threaded rod 10 are symmetrically arranged, and can drive two connecting frames 11 to move toward each other, both ends of the No. 1 threaded rod 10 are screwed with connecting frames 11, and the two connecting frames 11 are respectively located above and below the main frame 12, and the end of the upper connecting frame 11 is fixedly installed with an upper connecting frame 30, and the upper The connecting frame 11 drives the upper connecting frame 30 to move, and the lower connecting frame 3 is fixedly installed at the end of the lower connecting frame 11. The lower connecting frame 11 drives the lower connecting frame 3 to move. The upper connecting frame 30 and the lower connecting frame 3 are fixedly installed with clamping rings 9 at the opposite ends. The clamping ring 9 can be tightly clamped on the flange surface of the liquid pipeline 32, and the clamping plate 8 can be attached to the flange side of the liquid pipeline 32 to connect the joint body 1 between the two liquid pipelines 32. The clamping plate 8 is arranged on the side of the clamping ring 9, and an adjusting part is arranged between the clamping ring 9 and the clamping plate 8. Both ends of the joint body 1 are provided with compression seals.

[0027] Both ends of the main frame 12 are inlaid with guide frames 2, the upper frame 30 is slidably installed on the upper part of the guide frame 2, and the lower frame 3 is slidably installed on the lower part of the guide frame 2. The guide frame 2 plays a role in guiding the upper frame 30 and the lower frame 3. The lower end of the No. 1 threaded rod 10 is coaxially fixedly installed with a No. 1 handwheel 21, and the No. 1 handwheel 21 plays a role in facilitating the rotation of the No. 1 threaded rod 10. A sealing convex ring 31 is coaxially extended from the side of the joint body 1. The sealing convex ring 31 is integrally formed with the joint body 1, and the sealing convex ring 31 can improve the sealing between the joint body 1 and the liquid pipeline 32.

[0028] The adjusting member includes two protruding shells 25 symmetrically installed on the outer surface of the clamp ring 9, and a protruding column 26 is fitted inside the protruding shell 25. The protruding column 26 extends through the end of the protruding shell 25. The protruding shell 25 and the protruding column 26 play a role in guiding the card plate 8. The protruding column 26 is connected to the card plate 8. The side of the upper frame 30 and the side of the lower frame 3 are rotatably installed with an adjusting bolt 23. The outer surface of the adjusting bolt 23 is tightened with a threaded sleeve 24. The adjusting bolt 23 can drive the threaded sleeve 24 to move. The threaded sleeve 24 is fixed to the card plate 8. The adjusting bolt 23 is rotated to move the threaded sleeve 24 tightened on the adjusting bolt 23, thereby driving the card plate 8 to move. At this time, the protruding column 26 slides in the protruding shell 25 to guide the card plate 8 so that the card plate 8 can translate to adjust the position of the card plate 8 to adapt to the flange thickness on the liquid pipeline 32.

[0029] The outer surface of the protruding shell 25 is inlaid with a shell sleeve 28, and the shell sleeve 28 is fixed to the outer surface of the clamp ring 9. The shell sleeve 28 plays the role of fixing the protruding shell 25. An L-shaped frame 29 extends from the end of the protruding column 26. The end of the L-shaped frame 29 is fixed to the clamping plate 8. The L-shaped frame 29 plays the role of fixing the protruding column 26 and the clamping plate 8 together.

[0030] The pressure seal includes a tightening ring 4 respectively arranged at both ends of the joint body 1, and the front and rear ends of the tightening ring 4 are extended with protruding ears 7. The tightening ring 4 can press the end of the joint body 1 against the flange of the liquid pipeline 32 so that the two fit tightly without any gap. A guide sleeve 5 is fixedly installed at the end of the protruding ear 7 on one of the tightening rings 4, and a guide rod 6 is fitted inside the guide sleeve 5. The guide rod 6 passes through the end of the guide sleeve 5, and the end of the guide rod 6 is fixed to the protruding ear 7 on the other tightening ring 4. The guide rod 6 slides in the guide sleeve 5 to guide the two tightening rings 4, so that the two tightening rings 4 can vertically press the end of the joint body 1 against the flange of the liquid pipeline 32, thereby ensuring that the pressure of the tightening ring 4 on the joint body 1 is constant, and avoiding the damage of the joint body 1 due to uneven pressure.

[0031] Two sliding sleeves 20 are symmetrically installed on the outer surface of the main frame 12. The front end of the sliding sleeve 20 is fixed to the rear protruding ear 7. The sliding sleeve 20 plays a role in guiding the top tightening ring 4. A No. 2 threaded rod 14 is rotatably installed in the middle of the rear end of the main frame 12. The outer surface of the No. 2 threaded rod 14 is screwed with a pushing seat 13. The No. 2 threaded rod 14 plays a role in driving the pushing seat 13 to move. The end of the pushing seat 13 is connected to the sliding sleeve 20.

[0032] A No. 2 hand wheel 22 is coaxially fixedly installed at the rear end of the No. 2 threaded rod 14, and two directional sleeves 19 are symmetrically fixedly installed at the rear end of the main frame 12. The No. 2 hand wheel 22 serves to facilitate the rotation of the No. 2 threaded rod 14. The two directional sleeves 19 are located between the two sliding sleeves 20. The interior of the directional sleeves 19 is fitted with a directional column 18. The directional sleeves 19 and the directional column 18 serve to guide the push seat 13. The directional column 18 runs through the rear end of the directional sleeve 19, and the end of the directional column 18 is fixed to the push seat 13. Both ends of the push seat 13 are connected The push-pushing frame 16 is tilted and the two push-pushing frames 16 are symmetrically arranged. The push-pushing frame 16 can push the sliding sleeve 20 to make the two sliding sleeves 20 move in opposite directions. The front end of the push-pushing frame 16 is connected to the sliding sleeve 20, and the No. 2 threaded rod 14 is rotated to drive the pushing seat 13 to move. At this time, the directional column 18 slides in the directional sleeve 19 to assist the movement of the pushing seat 13, and the moving pushing seat 13 drives the push-pushing frame 16 to move, so as to push the two sliding sleeves 20 to slide in opposite directions on the main frame 12, thereby driving the two tightening rings 4 to move in opposite directions.

[0033] A connecting seat 15 is fixedly installed at the rear end of the sliding sleeve 20, and a No. 2 connecting shaft 27 is rotatably installed inside the connecting seat 15. The connecting seat 15 serves to support the No. 2 connecting shaft 27. The front end of the split push frame 16 is embedded in the outer surface of the No. 2 connecting shaft 27, and the No. 2 connecting shaft 27 serves to facilitate the connection with the split push frame 16. The rear end of the split push frame 16 is penetrated and embedded with a No. 1 connecting shaft 17, which is rotatably installed on the end of the pushing seat 13, and the No. 1 connecting shaft 17 serves to facilitate the connection with the split push frame 16.

[0034] During assembly, the adjusting bolt 23 is first rotated according to the flange thickness of the liquid pipeline 32, so that the threaded sleeve 24 tightened on the adjusting bolt 23 is moved, thereby driving the clamping plate 8 to move. At this time, the extended column 26 slides in the extended shell 25 to guide the clamping plate 8 so that the clamping plate 8 can be translated to adjust the position of the clamping plate 8 to adapt to the flange thickness on the liquid pipeline 32. Then, the joint body 1 is placed between the two liquid pipelines 32, and then the No. 1 threaded rod 10 with symmetrical threads at both ends is used to drive the two connecting frames 11 to move toward each other, thereby driving the clamping plate 8 and the clamping ring 9 on the upper frame 30 and the lower frame 3 to move toward each other, so that the clamping ring 9 can hug the flange surface of the liquid pipeline 32 and the clamping plate 8 fits the liquid pipeline. The flange side of the channel 32 is used to connect the joint body 1 between the two liquid pipelines 32 to complete the combination. To ensure that there will be no leakage after the combination, the No. 2 threaded rod 14 can be rotated to drive the push seat 13 to move. At this time, the directional column 18 slides in the directional sleeve 19 to assist the movement of the push seat 13, and the moving push seat 13 drives the sub-push frame 16 to move, so as to push the two sliding sleeves 20 to slide oppositely on the main frame 12, thereby driving the two tightening rings 4 to move oppositely. At this time, the guide rod 6 slides in the guide sleeve 5 to guide the two tightening rings 4, so that the two tightening rings 4 can vertically press the end of the joint body 1 on the flange of the liquid pipeline 32, so that the two fit tightly without gaps to avoid leakage.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A combined joint for fluid connection, comprising a joint body (1), characterized in that: The material of the joint body (1) is rubber. A main frame (12) is arranged at the rear of the joint body (1). A No. 1 threaded rod (10) is rotatably installed through the middle of the main frame (12). The threads at both ends of the No. 1 threaded rod (10) are symmetrically arranged. Connecting frames (11) are screwed to both ends of the No. 1 threaded rod (10). The two connecting frames (11) are respectively located above and below the main frame (12). An upper connecting frame (30) is fixedly installed at the end of the upper connecting frame (11), and a lower connecting frame (3) is fixedly installed at the end of the lower connecting frame (11). Clamp rings (9) are fixedly installed at the opposite ends of the upper connecting frame (30) and the lower connecting frame (3). A clamping plate (8) is arranged on the side of the clamping ring (9). An adjusting member is provided between the clamping ring (9) and the clamping plate (8), and pressure sealing members are provided at both ends of the joint body (1). The adjusting member comprises two protruding shells (25) symmetrically mounted on the outer surface of the clamping ring (9), and a protruding column (26) is fittedly mounted inside the protruding shell (25), and the protruding column (26) extends from the end of the protruding shell (25), and the protruding column (26) is connected to the clamping plate (8). The side surface of the upper connecting frame (30) and the side surface of the lower connecting frame (3) are both rotatably mounted with an adjusting bolt (23), and the outer surface of the adjusting bolt (23) is screwed with a threaded sleeve (24), and the threaded sleeve (24) is fixed to the clamping plate (8). The outer surface of the protruding shell (25) is inlaid with a shell sleeve (28). The shell sleeve (28) is fixed to the outer surface of the clamp ring (9), the end of the protruding column (26) is extended with an L-shaped frame (29), the end of the L-shaped frame (29) is fixed to the clamping plate (8), the pressure seal comprises a top tightening ring (4) respectively arranged at the two ends of the joint body (1), the front and rear ends of the top tightening ring (4) are extended with protruding ears (7), the end of the protruding ear (7) on one of the top tightening rings (4) is fixedly installed with a guide sleeve (5), the inside of the guide sleeve (5) is fitted with a guide rod (6), the guide rod (6) passes through the end of the guide sleeve (5), the end of the guide rod (6) is fixed to the protruding ear (7) on the other top tightening ring (4), and the outer surface of the main frame (12) is symmetrically fitted. Two sliding sleeves (20) are installed together, the front end of the sliding sleeves (20) is fixed to the rear protruding ear (7), a No. 2 threaded rod (14) is rotatably installed in the middle of the rear end of the main frame (12), the outer surface of the No. 2 threaded rod (14) is screwed with a push seat (13), the end of the push seat (13) is connected to the sliding sleeve (20), the rear end of the No. 2 threaded rod (14) is coaxially fixedly installed with a No. 2 hand wheel (22), the rear end of the main frame (12) is symmetrically fixedly installed with two directional sleeves (19), the two directional sleeves (19) are located between the two sliding sleeves (20), the interior of the directional sleeve (19) is fitted with a directional column (18), and the directional column (18) passes through the rear end of the directional sleeve (19),The end of the directional column (18) is fixed to the push seat (13), and both ends of the push seat (13) are connected to a separate push frame (16), the separate push frame (16) is arranged in an inclined manner, and the two separate push frames (16) are arranged symmetrically, and the front end of the separate push frame (16) is connected to the sliding sleeve (20).

2. A combined joint for fluid connection according to claim 1, characterized in that: Guide frames (2) are embedded at both ends of the main frame (12); the upper connecting frame (30) is slidably mounted on the upper portion of the guide frame (2); the lower connecting frame (3) is slidably mounted on the lower portion of the guide frame (2); a hand wheel (21) is coaxially fixedly mounted on the lower end of the No. 1 threaded rod (10); a sealing convex ring (31) coaxially extends from the side surface of the joint body (1); the sealing convex ring (31) is integrally formed with the joint body (1).

3. The combined joint for fluid connection according to claim 1, characterized in that: A connecting seat (15) is fixedly mounted on the rear end of the sliding sleeve (20), a second connecting shaft (27) is rotatably mounted inside the connecting seat (15), a front end of the split push frame (16) is embedded in the outer surface of the second connecting shaft (27), a rear end of the split push frame (16) is embedded with a first connecting shaft (17), and the first connecting shaft (17) is rotatably mounted on the end of the pushing seat (13).

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