Portable vacuum negative pressure pipeline connection device

Abstract

This utility model relates to the field of vacuum negative pressure pipelines, and more particularly to a portable vacuum negative pressure pipeline connection device, including a pipeline body; it also includes a limiting frame, a connecting ring at the rear end of the pipeline body, and slots on the left and right sides of the front end of the connecting ring. Threaded rods are threaded to the left and right ends of the connecting ring, and a limiting frame is set inside the slots. The limiting frame is rotatably connected to the threaded rods, and a rotating block is fixedly connected to the end of the threaded rod away from the limiting frame. Sealing plates are movably connected to the front and rear ends of the connecting ring, respectively. This utility model uses the rotating block to drive the threaded rod to rotate, causing the limiting frame to move towards the pipeline body. At the same time, the limiting frame slides on the limiting rod, and then the sealing plate is placed in the corresponding position while the limiting block is inserted into the limiting frame. This solves the problem that the sealing gasket of the vacuum negative pressure pipeline connection device, after long-term wear and pressure, affects the sealing effect, which is not only time-consuming and labor-intensive, but may also lead to prolonged system downtime.

Description

Technical Field

[0001] This utility model relates to the field of vacuum negative pressure pipelines, and in particular to a portable vacuum negative pressure pipeline connection device. Background Technology

[0002] Vacuum negative pressure pipeline connection devices are specially designed to ensure a tight connection between pipelines in a vacuum or negative pressure environment. They typically include sealing elements, quick couplings, and necessary fixing devices, which can effectively prevent air leakage into the system and ensure the efficient transmission of media in the pipeline. They are widely used in fields that require high-precision airflow control and pollution prevention, such as semiconductor manufacturing, chemical production, medical equipment, and laboratory environments.

[0003] While common vacuum negative pressure pipeline connection devices perform well in ensuring tight connections between pipelines, their gaskets are often located in critical parts of the connection device. After long-term wear and pressure, they will gradually age and lose elasticity, thus affecting the sealing effect. However, these gaskets are usually fixed to the device or difficult to remove, which is not only time-consuming and laborious, but may also lead to extended system downtime, increasing maintenance costs and the risk of production stagnation.

[0004] Therefore, the sealing gaskets of the aforementioned vacuum negative pressure pipeline connection devices will gradually age and lose elasticity after long-term wear and pressure. Moreover, they are usually fixed on the device or difficult to disassemble, which affects the sealing effect. This not only consumes time and effort but may also lead to extended system downtime. A portable vacuum negative pressure pipeline connection device can be designed. Utility Model Content

[0005] To overcome the problem that the sealing gaskets of vacuum negative pressure pipeline connection devices will gradually age and lose elasticity after long-term wear and pressure, and are usually fixed on the device or difficult to disassemble, thus affecting the sealing effect, which is not only time-consuming and laborious, but may also lead to extended system downtime.

[0006] The technical solution of this utility model is as follows: a portable vacuum negative pressure pipeline connection device, including a pipeline body; and a limiting frame. A connecting ring is provided at the rear end of the pipeline body. Hollow grooves are respectively opened on the left and right sides of the front end of the connecting ring. Threaded rods are threadedly connected to the left and right ends of the connecting ring. A limiting frame is provided inside the hollow groove. The limiting frame is rotatably connected to the threaded rod. A rotating block is fixedly connected to the end of the threaded rod away from the limiting frame. Sealing plates are movably connected to the front and rear ends of the connecting ring. Two limiting blocks are fixedly connected to the ends of the two sealing plates near the connecting ring. The limiting blocks are movably connected to the limiting frame. Two limiting rods are slidably connected inside the limiting frame. The limiting rods are fixedly connected to the connecting ring.

[0007] Preferably, the limiting frame moves towards the pipe body by rotating the rotating block and driving the threaded rod to rotate. At the same time, the limiting frame slides on the limiting rod. Then, the sealing plate is placed in the corresponding position and the limiting block is inserted into the limiting frame. Then, the rotating block is rotated to move the limiting frame outward and fix the position of the limiting block. The two sealing plates are then fixed on the connecting ring.

[0008] Preferably, a sealing silicone pad one is fixedly connected to the end of the sealing plate away from the connecting ring, and a sealing silicone pad two is fixedly connected to the rear end of the sealing silicone pad one.

[0009] Preferably, sealing silicone gasket one is movably connected to the pipe body, and sealing silicone gasket two is movably connected to the pipe body.

[0010] Preferably, the front end of the connecting ring is fixedly connected to the upper and lower sides of the connecting ring, and the rear end of the connecting ring is fixedly connected to the upper and lower sides of the connecting ring.

[0011] Preferably, the outer surface of the fixed arc plate is threaded with a fixed frame, and the inside of the fixed frame is rotatably connected with a clamping ring.

[0012] Preferably, a dustproof soft plate is fixedly connected to the inner side of the fixed frame, and a fixing block is fixedly connected to the left and right sides of the connecting ring respectively.

[0013] Preferably, the top of the fixing block is fixedly connected to a handle, and the outer surface of the fixing frame is fixedly connected to multiple anti-slip blocks.

[0014] The beneficial effects of this utility model are:

[0015] By rotating the rotating block to drive the threaded rod to rotate, the limiting frame moves towards the pipe body. At the same time, the limiting frame slides on the limiting rod. Then, the sealing plate is placed in the corresponding position, and the limiting block is inserted into the limiting frame. Then, the rotating block is rotated to move the limiting frame outward and fix the position of the limiting block. The two sealing plates are fixed on the connecting ring. This solves the problem that the sealing gasket of the vacuum negative pressure pipeline connection device will affect the sealing effect after long-term wear and pressure, which is not only time-consuming and labor-intensive, but may also lead to extended system downtime. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0017] Figure 2 The diagram shown is a three-dimensional lower cross-sectional view of the present invention.

[0018] Figure 3 The diagram shown is a three-dimensional rear cross-sectional view of the present invention.

[0019] Figure 4The diagram shown is a three-dimensional side sectional view of the present invention.

[0020] Figure 5 The diagram shown is a three-dimensional rear cross-sectional view of the present invention.

[0021] Explanation of reference numerals in the attached drawings: 1. Pipe body; 2. Connecting ring; 3. Empty groove; 4. Limiting frame; 5. Threaded rod; 6. Limiting block; 7. Sealing plate; 8. Sealing silicone pad one; 9. Rotating block; 10. Limiting rod; 11. Sealing silicone pad two; 12. Fixing arc plate; 13. Fixing frame; 14. Clamping ring; 16. Dustproof soft plate; 17. Fixing block; 18. Handle; 19. Anti-slip block. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment: a portable vacuum negative pressure pipeline connection device includes a pipeline body 1; it also includes a limiting frame 4. A connecting ring 2 is provided at the rear end of the pipeline body 1. Grooves 3 are respectively opened on the left and right sides of the front end of the connecting ring 2. Threaded rods 5 are threadedly connected to the left and right ends of the connecting ring 2. The limiting frame 4 is provided inside the grooves 3. The limiting frame 4 is rotatably connected to the threaded rods 5. A rotating block 9 is fixedly connected to the end of the threaded rod 5 away from the limiting frame 4. Sealing plates 7 are movably connected to the front and rear ends of the connecting ring 2. Two limiting blocks 6 are fixedly connected to the ends of the two sealing plates 7 near the connecting ring 2. The limiting blocks 6 are movably connected to the limiting frame 4, limiting the movement of the pipe. The internal sliding connection of frame 4 has two limiting rods 10, which are fixedly connected to the connecting ring 2. By rotating the rotating block 9, the threaded rod 5 is rotated, causing the limiting frame 4 to move towards the pipe body 1. At the same time, the limiting frame 4 slides on the limiting rods 10. Then, the sealing plate 7 is placed in the corresponding position, and the limiting block 6 is inserted into the limiting frame 4. Then, the rotating block 9 is rotated to move the limiting frame 4 outward and fix the position of the limiting block 6. The two sealing plates 7 are fixed on the connecting ring 2. This solves the problem that the sealing gasket of the vacuum negative pressure pipeline connection device is affected by long-term wear and pressure, which affects the sealing effect. This is not only time-consuming and labor-intensive, but may also lead to prolonged system downtime.

[0024] Please see Figures 1-5In this embodiment, a sealing silicone pad 8 is fixedly connected to the end of the sealing plate 7 away from the connecting ring 2, and a sealing silicone pad 11 is fixedly connected to the rear end of the sealing silicone pad 8. The sealing silicone pad 8 and the sealing silicone pad 11 together provide a sealing effect for the pipe body 1. The sealing silicone pad 8 and the sealing silicone pad 11 are movably connected to the pipe body 1. The front end of the connecting ring 2 is fixedly connected to the upper and lower sides of the connecting ring 2, and the rear end of the connecting ring 2 is fixedly connected to the upper and lower sides of the connecting ring 2. A fixing frame 13 is threadedly connected to the outer surface of the fixing arc plate 12, and a clamping ring 14 is rotatably connected inside the fixing frame 13. The frame 13 rotates on the fixed arc plate 12 via threads, which simultaneously drives the clamping ring 14 to move towards the connecting ring 2. The clamping ring 14 pushes the sealing silicone pad 8 to tightly fit with the pipe body 1, thus fixing the pipe body 1 and enhancing the sealing effect. A dustproof soft plate 16 is fixedly connected to the inner side of the fixed frame 13. Fixing blocks 17 are fixedly connected to the left and right sides of the connecting ring 2, respectively. The dustproof soft plate 16 can prevent external dust and impurities from entering the fixed frame 13. A handle 18 is fixedly connected to the top of the fixing block 17. Multiple anti-slip blocks 19 are fixedly connected to the outer surface of the fixed frame 13. The handle 18 can fix and move the fixing ring, while the anti-slip blocks 19 assist the fixed frame 13 in rotating.

[0025] When the sealing silicone gasket needs to be replaced during operation, rotating the rotating block 9 drives the threaded rod 5 to rotate, causing the limiting frame 4 to move towards the pipe body 1. At the same time, the limiting frame 4 slides on the limiting rod 10. Then, the sealing plate 7 is placed in the corresponding position, and the limiting block 6 is inserted into the limiting frame 4. Then, rotating the rotating block 9 moves the limiting frame 4 outward to fix the position of the limiting block 6, fixing the two sealing plates 7 on the connecting ring 2. Then, the pipe body 1 is inserted into the sealing silicone gasket 8. Rotating the fixing frame 13 on the fixing arc plate 12 via the thread drives the clamping ring 14 to move towards the connecting ring 2. The clamping ring 14 pushes the sealing silicone gasket 8 to tightly fit with the pipe body 1, fixing the pipe body 1 while strengthening the sealing effect. The dustproof soft plate 16 can prevent external dust and impurities from entering the fixing frame 13. The fixing box and the fixing ring can be moved by the handle 18, while the anti-slip block 19 assists the rotation of the fixing frame 13. The sealing silicone gasket 8 and the sealing silicone gasket 2 11 work together to seal the pipe body 1.

[0026] Through the above steps, when it is necessary to replace the sealing silicone gasket, rotate the rotating block 9 to drive the threaded rod 5 to rotate, causing the limiting frame 4 to move towards the pipe body 1. At the same time, the limiting frame 4 slides on the limiting rod 10. Then, place the sealing plate 7 in the corresponding position and insert the limiting block 6 into the limiting frame 4. Then rotate the rotating block 9 to move the limiting frame 4 outward and fix the position of the limiting block 6. Fix the two sealing plates 7 on the connecting ring 2. This solves the problem that after long-term wear and pressure, the sealing gaskets of the vacuum negative pressure pipeline connection device will gradually age and lose elasticity. Moreover, they are usually fixed on the device or difficult to disassemble, thus affecting the sealing effect. This is not only time-consuming and laborious, but may also lead to extended system downtime.

Claims

1. A portable vacuum negative pressure pipe connecting device, comprising a pipe body (1); characterized in that: It also includes a limiting frame (4), a connecting ring (2) is provided at the rear end of the pipe body (1), and slots (3) are respectively opened on the left and right sides of the front end of the connecting ring (2). Threaded rods (5) are respectively threaded to the left and right ends of the connecting ring (2). A limiting frame (4) is provided inside the slot (3). The limiting frame (4) is rotatably connected to the threaded rod (5). A rotating block (9) is fixedly connected to the end of the threaded rod (5) away from the limiting frame (4). Sealing plates (7) are movably connected to the front and rear ends of the connecting ring (2). Two limiting blocks (6) are fixedly connected to the end of the two sealing plates (7) near the connecting ring (2). The limiting blocks (6) are movably connected to the limiting frame (4). Two limiting rods (10) are slidably connected inside the limiting frame (4). The limiting rods (10) are fixedly connected to the connecting ring (2).

2. The portable vacuum sub-negative pressure conduit coupling device of claim 1, wherein: A sealing silicone pad 1 (8) is fixedly connected to one end of the sealing plate (7) away from the connecting ring (2), and a sealing silicone pad 2 (11) is fixedly connected to the rear end of the sealing silicone pad 1 (8).

3. The portable vacuum sub-atmospheric pressure pipe coupling device of claim 2, wherein: The sealing silicone pad 1 (8) is movably connected to the pipe body (1), and the sealing silicone pad 2 (11) is movably connected to the pipe body (1).

4. The portable vacuum sub-negative pressure conduit coupling device of claim 1, wherein: The front end of the connecting ring (2) is fixedly connected to the upper and lower sides of the connecting ring (2) and the rear end is fixedly connected to the upper and lower sides of the connecting ring (2).

5. The portable vacuum negative pressure pipeline connection device according to claim 4, characterized in that: The outer surface of the fixed arc plate (12) is threaded with a fixed frame (13), and the inside of the fixed frame (13) is rotatably connected with a clamping ring (14).

6. The portable vacuum sub-atmospheric pressure conduit coupling device of claim 5, wherein: A dustproof soft plate (16) is fixedly connected to the inner side of the fixed frame (13), and a fixed block (17) is fixedly connected to the left and right sides of the connecting ring (2).

7. The portable vacuum sub-atmospheric pressure pipe coupling device of claim 6, wherein: The top of the fixing block (17) is fixedly connected to a handle (18), and the outer surface of the fixing frame (13) is fixedly connected to multiple anti-slip blocks (19).

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