Pipeline connection sealing structure

Abstract

The utility model discloses a pipeline connection sealing structure, which relates to the technical field of pipeline sealing, and comprises a first connecting pipe, a plurality of first sliding chutes are arranged in the first connecting pipe, first sliding blocks are connected in the first sliding chutes in a sliding manner, a sealing block is fixedly connected among the four first sliding blocks, and the sealing block is connected with the first sliding chutes in a sliding manner. A sliding rod is fixedly connected to the interior of the first sliding groove, the sliding rod penetrates through the first sliding block and is slidably connected with the first sliding block, the sealing block is slidably connected to the interior of the first connecting pipe, a first connecting column is fixedly connected to one side of the sealing block, and a filter plate is fixedly connected to one end of the first connecting column; the anti-backflow device has the beneficial effects that through mutual matching of the first sliding groove, the first sliding block, the sliding rod, the telescopic springs and the sealing block, when the pressure of cooling liquid in the first connecting pipe is insufficient, the sealing block is driven to seal the interior of the first connecting pipe through rebounding and resetting of the multiple telescopic springs, and therefore backflow of the cooling liquid is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline sealing, in particular to a pipeline connection sealing structure. Background Art

[0002] A pipeline is a device connected by pipes, pipe connectors and valves for conveying gas, liquid or fluid with solid particles. Usually, the fluid is pressurized by blowers, compressors, pumps and boilers, and then flows from the high-pressure part of the pipeline to the low-pressure part. The fluid can also be conveyed by its own pressure or gravity. Pipelines are widely used, mainly in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, water conservancy projects and various industrial installations.

[0003] The flushing interface of the mechanical seal is connected to the inlet and outlet of the coolant respectively, and the sealed coolant is passed through the pipeline. The coolant is provided with flow and pressure by an external circulation pump. At some point, some problems may occur in the external circulation device of the coolant, causing the coolant to stop circulating and possibly reflux. For this reason, we propose a pipeline connection sealing structure. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a pipeline connection sealing structure, which solves the problems raised in the above background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a pipeline connection sealing structure, including a first connecting pipe, a plurality of first sliding grooves are opened inside the first connecting pipe, a first slider is slidably connected inside the first sliding groove, a sealing block is fixedly connected between the four first sliders, a sliding rod is fixedly connected inside the first sliding groove, the sliding rod passes through the first slider and is slidably connected thereto, the sealing block is slidably connected to the inside of the first connecting pipe, a first connecting column is fixedly connected to one side of the sealing block, a filter plate is fixedly connected to one end of the first connecting column, a threaded head is threadedly connected to the inside of the first connecting pipe, and a second connecting pipe is fixedly connected to one end of the threaded head.

[0006] Preferably, a sealing groove is provided inside the first connecting tube, a sealing plate is fixedly connected to one side of the second connecting tube, the sealing plate is inserted into the sealing groove, a plurality of positioning blocks are fixedly connected to the outer sides of the first connecting tube and the second connecting tube, two protective shells are sleeved on the outer sides of the first connecting tube and the second connecting tube, a plurality of positioning grooves are provided inside the two protective shells, the positioning blocks cooperate with the positioning grooves, and the connection between the first connecting tube and the second connecting tube can be sealed by the cooperation of the positioning blocks, the protective shells, the positioning grooves, the sealing plate and the sealing grooves, thereby preventing liquid leakage.

[0007] Preferably, a plurality of fixing bolts are arranged inside one of the protective shells, and the two protective shells are fixed to the outer sides of the first connecting pipe and the second connecting pipe by the fixing bolts.

[0008] Preferably, a plurality of second slide grooves are provided inside the first connecting tube, a second slide block is slidably connected inside the second slide groove, and the second slide block is fixedly connected to the outer side of the filter plate, and the filter plate can be limited by the mutual cooperation of the second slide groove and the second slide block, and the sealing block can be limited by the mutual cooperation of the filter plate and the first connecting column, so that the sealing block is reset to ensure the stability of sealing the first connecting tube.

[0009] Preferably, one side of the filter plate is rotatably connected to a rotating shaft, and two scrapers are fixedly connected to the outside of the rotating shaft and located inside the first connecting tube, and a paddle is fixedly connected to the outside of the rotating shaft and located inside the first connecting tube. Through the mutual cooperation of the paddle, the rotating shaft and the scraper, the surface of the filter plate can be cleaned, thereby preventing impurities in the coolant from clogging the filter plate and ensuring the flow inside the filter plate.

[0010] Preferably, the scraper is in contact with the surface of the filter plate.

[0011] Preferably, four blades are provided, and the four blades are symmetrically distributed about the central axis of the rotating shaft.

[0012] The utility model provides a pipeline connection sealing structure, which has the following beneficial effects:

[0013] 1. The pipeline connection sealing structure, through the mutual cooperation of the first slide groove, the first slider, the sliding rod, the telescopic spring and the sealing block, can, when the pressure of the coolant inside the first connecting pipe is insufficient, drive the sealing block to seal the inside of the first connecting pipe through the rebound reset of multiple telescopic springs, thereby preventing the coolant from flowing back, and through the mutual cooperation of the first slide groove, the first slider, the sliding rod, the second slide groove, the second slider, the filter plate and the first connecting column, the stability of the sealing block when resetting can be ensured through multiple limit stops.

[0014] 2. The pipeline is connected to the sealing structure, and the impurities in the coolant can be filtered through the filter plate to prevent the impurities in the coolant from entering and causing the sealing block to be re-sealed and not tight. Through the cooperation of the rotating shaft, scraper and paddle, the paddle is driven to rotate when the coolant flows, thereby driving the scraper to clean the surface of the filter plate, thereby preventing the impurities in the coolant from clogging the filter plate and ensuring the flow inside the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the expansion of the utility model;

[0017] Figure 3 It is a schematic diagram of the interior of the first connecting pipe of the utility model.

[0018] In the figure: 1. first connecting pipe; 2. second connecting pipe; 3. positioning block; 4. protective shell; 5. positioning groove; 6. sealing plate; 7. threaded head; 8. sealing groove; 9. first slide groove; 10. first slider; 11. sliding rod; 12. telescopic spring; 13. sealing block; 14. first connecting column; 15. filter plate; 16. second slide groove; 17. second slider; 18. rotating shaft; 19. scraper; 20. paddle. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figures 1 to 3 The utility model provides a technical solution: a pipeline connection sealing structure, including a first connecting pipe 1, a plurality of first chute grooves 9 are opened inside the first connecting pipe 1, a first slider 10 is slidably connected inside the first chute groove 9, a sealing block 13 is fixedly connected between the four first sliders 10, a sliding rod 11 is fixedly connected inside the first chute groove 9, the sliding rod 11 passes through the first slider 10 and is slidably connected thereto, the sealing block 13 is slidably connected to the inside of the first connecting pipe 1, a first connecting column 14 is fixedly connected to one side of the sealing block 13, a filter plate 15 is fixedly connected to one end of the first connecting column 14, a threaded head 7 is threadedly connected to the inside of the first connecting pipe 1, and a second connecting pipe 2 is fixedly connected to one end of the threaded head 7;

[0021] A sealing groove 8 is provided inside the first connecting tube 1, a sealing plate 6 is fixedly connected to one side of the second connecting tube 2, and the sealing plate 6 is inserted into the sealing groove 8. A plurality of positioning blocks 3 are fixedly connected to the outer sides of the first connecting tube 1 and the second connecting tube 2. Two protective shells 4 are sleeved on the outer sides of the first connecting tube 1 and the second connecting tube 2. A plurality of positioning grooves 5 are provided inside the two protective shells 4. The positioning blocks 3 cooperate with the positioning grooves 5. Through the cooperation of the positioning blocks 3, the protective shells 4, the positioning grooves 5, the sealing plate 6 and the sealing grooves 8, the connection between the first connecting tube 1 and the second connecting tube 2 can be sealed to prevent liquid leakage. A plurality of fixing bolts are provided inside one of the protective shells 4, and the two protective shells 4 are fixed to the outer sides of the first connecting tube 1 and the second connecting tube 2 by fixing bolts.

[0022] A plurality of second slide grooves 16 are provided inside the first connecting tube 1, and a second slider 17 is slidably connected inside the second slide grooves 16. The second slider 17 is fixedly connected to the outer side of the filter plate 15. The filter plate 15 can be limited by the cooperation between the second slide grooves 16 and the second slider 17, so that the sealing block 13 can be limited by the cooperation between the filter plate 15 and the first connecting column 14, so that the sealing block 13 is reset to ensure the stability of sealing the first connecting tube 1.

[0023] A rotating shaft 18 is rotatably connected to one side of the filter plate 15, and two scrapers 19 are fixedly connected to the outside of the rotating shaft 18 and located inside the first connecting tube 1, and a paddle 20 is fixedly connected to the outside of the rotating shaft 18 and located inside the first connecting tube 1. The paddle 20, the rotating shaft 18, and the scraper 19 cooperate with each other to clean the surface of the filter plate 15, thereby preventing impurities in the coolant from clogging the filter plate 15 and ensuring the flow inside the filter plate 15;

[0024] The scraper 19 is in contact with the surface of the filter plate 15 . Four blades 20 are provided, and the four blades 20 are symmetrically distributed about the central axis of the rotating shaft 18 .

[0025] In summary, when the pipeline connection sealing structure is in use, when the coolant flows inside the first connecting pipe 1, it drives the paddle 20 to rotate, then drives the rotating shaft 18 to rotate, and then drives the scraper 19 to rotate, so that the scraper 19 cleans the impurities on the surface of the filter plate 15 to ensure the normal flow inside the filter plate 15. When the pressure of the coolant pumped out inside the first connecting pipe 1 is insufficient, the multiple telescopic springs 12 rebound and reset, thereby pushing the first slider 10 to slide inside the first slide groove 9, thereby driving the sealing block 13 to slide inside the first connecting pipe 1. At the same time, the sealing block 13 drives the filter plate 15 to slide inside the first connecting pipe 1 through the first connecting column 14, and then drives the multiple second sliders 17 to slide inside the second slide groove 16, so that the stability of the sealing block 13 when resetting is ensured by multiple limit stops.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pipeline connection sealing structure, comprising a first connecting pipe (1), characterized in that: A plurality of first slide grooves (9) are provided inside the first connecting tube (1), a first slider (10) is slidably connected inside the first slide groove (9), a sealing block (13) is fixedly connected between the four first sliders (10), a sliding rod (11) is fixedly connected inside the first slide groove (9), the sliding rod (11) passes through the first slider (10) and is slidably connected thereto, the sealing block (13) is slidably connected inside the first connecting tube (1), a first connecting column (14) is fixedly connected to one side of the sealing block (13), a filter plate (15) is fixedly connected to one end of the first connecting column (14), a threaded head (7) is threadedly connected inside the first connecting tube (1), and a second connecting tube (2) is fixedly connected to one end of the threaded head (7).

2. A pipeline connection sealing structure according to claim 1, characterized in that: A sealing groove (8) is provided inside the first connecting tube (1), a sealing plate (6) is fixedly connected to one side of the second connecting tube (2), and the sealing plate (6) is inserted into the sealing groove (8). A plurality of positioning blocks (3) are fixedly connected to the outer sides of the first connecting tube (1) and the second connecting tube (2), and two protective shells (4) are sleeved on the outer sides of the first connecting tube (1) and the second connecting tube (2), and a plurality of positioning grooves (5) are provided inside the two protective shells (4), and the positioning blocks (3) and the positioning grooves (5) cooperate with each other.

3. A pipeline connection sealing structure according to claim 1, characterized in that: A plurality of fixing bolts are arranged inside one of the protective shells (4), and the two protective shells (4) are fixed to the outside of the first connecting pipe (1) and the second connecting pipe (2) by means of the fixing bolts.

4. A pipeline connection sealing structure according to claim 1, characterized in that: A plurality of second slide grooves (16) are provided inside the first connecting pipe (1), a second slide block (17) is slidably connected inside the second slide groove (16), and the second slide block (17) is fixedly connected to the outer side of the filter plate (15).

5. The pipeline connection sealing structure according to claim 1, characterized in that: A rotating shaft (18) is rotatably connected to one side of the filter plate (15); two scrapers (19) are fixedly connected to the outside of the rotating shaft (18) and located inside the first connecting tube (1); and a paddle (20) is fixedly connected to the outside of the rotating shaft (18) and located inside the first connecting tube (1).

6. A pipeline connection sealing structure according to claim 5, characterized in that: The scraper (19) is in contact with the surface of the filter plate (15).

7. A pipeline connection sealing structure according to claim 5, characterized in that: Four blades (20) are provided, and the four blades (20) are symmetrically distributed about the central axis of the rotating shaft (18).

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