A pipe connecting structure for fire engineering

Abstract

The application discloses a pipeline connecting structure for fire engineering, which comprises a sealing pipe, a first mounting ring is arranged on the sealing pipe, a sealing mechanism is arranged in the first mounting ring, a fire pipeline body is arranged in the sealing pipe, the fire pipeline body is connected with a first connecting pipe and a second connecting pipe through a clamping assembly, the first connecting pipe and the second connecting pipe are connected through a fixing assembly, the fixing assembly is fixed in the first mounting ring through a sealing ring, the sealing ring is sealed, a reinforcing part with elasticity is embedded in the sealing ring, the shape of the sealing ring is kept through the reinforcing part, the sealing ring will not be deformed due to the fluid pressure in the fire pipeline body, and thus the leakage of the pipeline connecting part is prevented; the reinforcing part with elasticity in the sealing ring is formed with two sides with different lengths on the basis of a middle section protruding tip, the long side is close to a V-shaped reinforcing rebound plate, and thus when the V-shaped reinforcing rebound plate is pressed, the fire pipeline body is further back-pressed, and the leakage prevention effect is further achieved.

Description

Technical Field

[0001] This invention relates to the field of pipe connections, and more particularly to a pipe connection structure for fire protection engineering. Background Technology

[0002] Fire protection engineering, also known as fire safety engineering or fire prevention engineering, uses fire pipes as the most common component. When in use, multiple fire pipes often need to be connected together, which requires the use of pipe connection structures for connection.

[0003] The use of pipe connection structures requires ensuring their airtightness to prevent water leakage between two connected fire pipes. To improve the airtightness, sealing rings are installed. However, existing sealing rings are placed directly and fixed by compression force, which makes them easy to detach and lose after disassembly. Moreover, the sealing effect of conventional sealing rings is closely related to the compression force. When the compression force at the connection is insufficient, the sealing effect of the sealing ring is likely to be poor. Summary of the Invention

[0004] The purpose of this invention is to provide a pipe connection structure for fire protection engineering to solve the above-mentioned technical problems.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A pipe connection structure for fire protection engineering includes a sealing pipe with two first mounting rings fixedly connected to it. The first mounting rings are connected to the sealing pipe and have a sealing mechanism inside. Two fire protection pipe bodies are inserted into the sealing pipe. The two fire protection pipe bodies are respectively connected to a first connecting pipe and a second connecting pipe through multiple snap-fit ​​components. The first connecting pipe and the second connecting pipe are connected by a fixing component.

[0007] Preferably, the sealing assembly includes a sealing ring, which is fixedly connected to the first mounting ring. The sealing ring has a V-shaped groove, and a V-shaped reinforcing rebound plate is fixedly connected inside the V-shaped groove. Several protruding posts are fixedly connected to the inner walls of the upper and lower sides of the inner wall of the V-shaped reinforcing rebound plate, and the protruding posts on the upper and lower sides of the inner wall of the V-shaped reinforcing rebound plate are installed alternately.

[0008] Preferably, the sealing ring has an embedded reinforcement member, which is an elastic reinforcement member. The two sides of the top of the reinforcement member are of unequal length, and the longer side of the top of the reinforcement member is close to the V-shaped reinforcing spring plate.

[0009] Preferably, a second mounting ring is provided between the two first mounting rings, and a plurality of through holes are provided through the second mounting ring. The through holes are connected to the sealing tube, and a positioning component is fixedly connected inside the through holes.

[0010] Preferably, the positioning component includes a perforated plate, which is fixedly connected to a second mounting ring. The perforated plate is connected to a piston rod via a second spring. The piston rod is slidably connected to a through hole. A limit ring is provided on the side of the piston rod away from the fire-fighting pipe body. The limit ring is fixedly connected to the second mounting ring. A positioning hemisphere is provided inside the limit ring, and the positioning hemisphere is connected to the piston rod.

[0011] Preferably, the inner walls of the first connecting pipe and the second connecting pipe are provided with multiple limiting grooves, the positioning hemisphere is fixedly connected to the piston column, and the positioning hemisphere is inserted into the limiting groove.

[0012] The beneficial effects of this invention are:

[0013] 1. This invention uses a sealing ring fixed inside the first mounting ring for sealing. An elastic reinforcing member is embedded within the sealing ring to maintain its shape and prevent deformation due to fluid pressure within the fire-fighting pipeline, thus preventing leakage at the pipeline connection. The elastic reinforcing member inside the sealing ring forms two sides of varying lengths, with the longer side close to the V-shaped reinforcing rebound plate. This allows for further back pressure on the fire-fighting pipeline body when the V-shaped reinforcing rebound plate is under pressure, further enhancing the leak-proof effect.

[0014] 2. The first and second connecting pipes can be fixed to the fire-fighting pipeline body by means of the snap-fit ​​assembly. When used with the positioning assembly, the first and second connecting pipes can be firmly fixed. When the fire-fighting pipeline body is in use, due to the water pressure, the water pressure impacts the piston column, causing the positioning hemisphere on the piston column to fit tightly into the limiting groove. The connection strength of the pipeline can be automatically strengthened according to the strength of the water pressure.

[0015] 3. By setting screws, first nuts, second nuts, rubber rings, and positioning sleeves, the connection between the first connecting pipe and the second connecting pipe can be further strengthened, thereby enhancing the connection between the two fire-fighting pipe bodies. It can also enable the second nut to resist the rotation caused by vibration, preventing the second nut from loosening due to vibration and causing the fire-fighting pipe body connection to become loose. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram showing the connection between the first connecting pipe and the second connecting pipe of the present invention;

[0018] Figure 3 for Figure 2 Enlarged schematic diagram of part A;

[0019] Figure 4 for Figure 2 Enlarged schematic diagram of part B;

[0020] Figure 5 for Figure 2 Enlarged schematic diagram of part C;

[0021] Figure 6 This is a schematic diagram of the snap-fit ​​assembly of the present invention;

[0022] Figure 7 This is a schematic diagram of the structure of the limiting block of the present invention;

[0023] Figure 8 This is a schematic diagram of the structure of the fixing component of the present invention;

[0024] Figure 9 This is a schematic diagram of the sealing assembly of the present invention;

[0025] Figure 10 This is a schematic diagram of the sealing assembly of the present invention in an uncompressed state.

[0026] Reference numerals in the attached drawings: 1. Fire-fighting pipe body; 2. First connecting pipe; 3. First connecting ring; 4. Screw; 5. Second connecting pipe; 6. Pressure plate; 7. First spring; 8. Push rod; 9. Positioning block; 10. First groove; 11. Second groove; 12. Limiting plate; 13. First nut; 14. Third groove; 15. Second nut; 16. Rubber ring; 17. Positioning sleeve; 18. Limiting groove; 19. Positioning hemisphere; 20. Limiting ring; 21. First mounting ring; 22. Positioning ring; 24. Piston column; 25. Second spring; 26. Hollow plate; 27. Sealing ring; 28. V-shaped reinforced rebound plate; 29. ​​Protruding column; 30. Reinforcing component; 31. Connecting block; 32. Sealing pipe; 33. Second mounting ring. Detailed Implementation

[0027] To make the technical means, creative features, achieved objectives, and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this invention and not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention.

[0028] Specific embodiments of the present invention are described below with reference to the accompanying drawings.

[0029] Example 1:

[0030] like Figure 1-3 , Figure 5-7As shown, a pipe connection structure for fire protection engineering includes a sealing pipe 32. Two first mounting rings 21 are fixedly connected to the sealing pipe 32. The first mounting rings 21 are connected to the sealing pipe 32. A sealing mechanism is provided inside the first mounting rings 21. Two fire pipe bodies 1 are inserted into the sealing pipe 32. The two fire pipe bodies 1 are respectively connected to a first connecting pipe 2 and a second connecting pipe 5 through multiple snap-fit ​​components. The first connecting pipe 2 and the second connecting pipe 5 are connected by a fixing component.

[0031] When it is necessary to connect two fire pipe bodies 1, the two fire pipe bodies 1 can be directly inserted into the sealing pipe 32. The inner wall of the sealing pipe 32 is covered with a sealing layer. The sealing layer and the fire pipe body 1 will generate friction, which can effectively strengthen the connection between the sealing pipe 32 and the fire pipe body 1 and improve the sealing performance.

[0032] The snap-fit ​​assembly includes a positioning block 9, which is fixedly connected to the fire pipe body 1. A first groove 10 is provided through the positioning block 9, and a second groove 11 is formed on the basis of the first groove 10. Two matching limiting plates 12 are slidably connected inside the first groove 10. When the two limiting plates 12 are pressed, their opposite surfaces are in contact with each other. When the two limiting plates 12 are not pressed and are in the unfolded state, they match the second groove 11. Sliding grooves are provided through the left and right sides of the positioning block 9. A push rod 8 is slidably connected inside the sliding groove. One end of the push rod 8 is located on the inner wall of the sliding groove and can extend into the second groove 11. The other end of the push rod 8 is fixedly connected to a pressure plate 6. A first spring 7 is sleeved on the push rod 8. The two ends of the first spring 7 are fixedly connected to the pressure plate 6 and the positioning block 9, respectively, for limiting. A connecting block 31 is fixedly connected to the top of the plate 12. Multiple connecting blocks 31 are fixedly connected to the first connecting pipe 2 and the second connecting pipe 5 respectively. Due to the positioning ring 22, the fire pipe body 1 will be directly inserted into the designated position inside the sealing pipe 32. After the fire pipe body 1 is inserted, the first connecting pipe 2 and the second connecting pipe 5 can be inserted to squeeze the two limiting plates 12 on the first connecting pipe 2 and the second connecting pipe 5 so that the opposite surfaces of the two limiting plates 12 are tightly attached together. The two limiting plates 12 will match the first groove 10, so they can be inserted into the first groove 10 and slide inside the first groove 10. When the limiting plate 12 slides into the second groove 11, the limiting plate 12 will lose its compression, so the two limiting plates 12 will separate and be properly engaged with the second groove 11, thus playing a fixing role.

[0033] Furthermore, when the limiting plate 12 engages with the second groove 11, the limiting grooves 18 on the first connecting pipe 2 and the second connecting pipe 5 engage with the positioning hemisphere 19, thereby fixing the first connecting pipe 2 and the second connecting pipe 5. The upper end of the sealing pipe 32 is fixed by the first connecting pipe 2, and the lower end of the sealing pipe 32 is fixed by the second connecting pipe 5. The first connecting pipe 2 and the second connecting pipe 5 are mutually intertwined, thereby ensuring the connection of the two fire-fighting pipe bodies 1.

[0034] A second mounting ring 33 is provided between the two first mounting rings 21. Multiple through holes are provided through the second mounting ring 33, and these through holes communicate with the sealing pipe 32. The positioning assembly includes a perforated plate 26, which is fixedly connected to the second mounting ring 33. The perforated plate 26 is connected to the piston column 24 via a second spring 25. The piston column 24 is slidably connected to the through holes. A limit ring 20 is provided on the side of the piston column 24 away from the fire-fighting pipe body 1, and the limit ring 20 is fixedly connected to the second mounting ring 33. A positioning hemisphere 19 is provided inside the limit ring 20 and is connected to the piston column 24. Multiple limit grooves 18 are provided on the inner walls of both the first connecting pipe 2 and the second connecting pipe 5. The positioning hemisphere 19 is fixedly connected to the piston column 24. The positioning hemisphere 19 is inserted into the limiting groove 18. A positioning component is fixedly connected inside the through hole. When fluid is introduced into the fire pipe body 1, the fluid will flow into the through hole through the hollow plate 26. With the help of the fluid pressure, the piston column 24 can be pushed, so that the piston column 24 squeezes the positioning hemisphere 19 into close contact with the limiting groove 18. Thus, the strength of the first connecting pipe 2 and the second connecting pipe 5 fixed by the positioning hemisphere 19 is related to the fluid pressure. When the pressure is stronger, the pressure generated at the connection of the fire pipe body 1 is greater, and the connection is more likely to be unstable. However, the stronger the clamping force between the positioning hemisphere 19 and the limiting groove 18, the stronger the stability of the connection can be, ensuring the stability of the connection and avoiding the phenomenon of unstable connection leading to problems in the connection of the fire pipe body 1.

[0035] When it is necessary to disassemble and separate the two fire pipe bodies 1, the fire pipe body 1 is not circulated with fluid, the piston column 24 loses its compression, and the pressure plate 6 is squeezed, causing the pressure plate 6 to drive the push rod 8 to squeeze the limiting plate 12, thereby causing the two limiting plates 12 to merge. When the two limiting plates 12 merge, the first connecting pipe 2 and the second connecting pipe 5 can be pulled to separate them, thus achieving the disassembly effect.

[0036] Example 2:

[0037] like Figure 4 , Figure 9-10As shown, while other parts are the same as in Embodiment 1, the difference between this embodiment and Embodiment 1 is that: the sealing assembly includes a sealing ring 27, which is fixedly connected to the first mounting ring 21. A V-shaped annular groove is provided on the sealing ring 27, and a V-shaped reinforcing spring plate 28 is fixedly connected inside the V-shaped annular groove. Several protruding posts 29 are fixedly connected to the inner walls of the upper and lower sides of the inner wall of the V-shaped reinforcing spring plate 28. The protruding posts 29 on the upper and lower sides of the inner wall of the V-shaped reinforcing spring plate 28 are installed alternately. A reinforcing member 30 is embedded inside the sealing ring 27. The reinforcing member 30 is an elastic reinforcing member 30. The two sides of the top of the reinforcing member 30 are of unequal length, and the longer side of the top of the reinforcing member 30 is close to the V-shaped reinforcing spring plate 28.

[0038] When the fire-fighting pipe body 1 is inserted into the sealing pipe 32, the fire-fighting pipe body 1 is connected to the sealing ring 27 and will also squeeze the sealing ring 27, causing the V-shaped reinforcing rebound plate 28 fixed inside the sealing ring 27 to continuously close. Since the V-shaped reinforcing rebound plate 28 is elastic, it will make the bottom end of the sealing ring 27 tightly squeeze the fire-fighting pipe body 1, thereby ensuring that the sealing ring 27 can be in close contact with the fire-fighting pipe body 1, improving the sealing and waterproof performance of the sealing ring 27.

[0039] The sealing ring 27 has an embedded reinforcement 30, which is directly fixed to the inner wall of the first mounting ring 21. This effectively prevents the sealing ring 27 from being lost.

[0040] The sealing ring 27 has an elastic reinforcement 30 with the middle section protruding tip as the reference to form two sides of different lengths. The longer side is close to the V-shaped reinforcing rebound plate 28, so that when the V-shaped reinforcing rebound plate 28 is under pressure, it can further press back the V-shaped reinforcing rebound plate 28, so that the V-shaped reinforcing rebound plate 28 can further press back the fire pipe body 1, thereby further preventing leakage.

[0041] Example 3:

[0042] like Figure 8 As shown, while other parts are the same as in Embodiment 1, the difference between this embodiment and Embodiment 1 is that: the fixing component includes a screw 4, two first connecting rings 3 are fixedly connected to the first connecting pipe 2 and the second connecting pipe 5 respectively, and slots are provided through the two first connecting rings 3. The screw 4 is located inside the slots, and a second nut 15 and a first nut 13 are threadedly connected to the screw 4. A third groove 14 is provided on the opposite surface of the first nut 13 and the second nut 15. The cross-section of the third groove 14 is an isosceles trapezoid. A rubber ring 16 is provided between the first nut 13 and the second nut 15. The rubber ring 16 is firmly fitted on the screw 4. Positioning sleeves 17 are fixedly connected to both sides of the rubber ring 16. A smooth layer is provided on the opposite surface of the positioning sleeve 17 and the third groove 14. The smooth layer reduces the friction between the third groove 14 and the positioning sleeve 17.

[0043] After the fire-fighting pipe body 1 is installed, the screw 4 can be passed through the two first connecting rings 3, and the second nut 15 can be threaded onto the screw 4 so that the second nut 15 and the first connecting ring 3 are not squeezed together, thereby achieving a fixing effect and strengthening the connection of the fire-fighting pipe body 1.

[0044] The rubber sleeve is put on the screw 4 and the positioning sleeve 17 on the rubber sleeve is inserted into the third groove 14 on the second nut 15. Then, the first nut 13 is installed on the screw 4 so that the third groove 14 on the first nut 13 contacts the other positioning sleeve 17 on the rubber sleeve.

[0045] Since the surfaces of the third groove 14 and the positioning sleeve 17 are both provided with a smooth layer, the friction between them will be greatly reduced, and the rubber ring 16 can be firmly fixed to the screw 4. When the connection structure vibrates, the vibration will be transmitted to the screw 4. The vibration will cause the second nut 15 to rotate. However, the second nut 15 is limited by the positioning sleeve 17 and the rubber sleeve. The second nut 15 can only exert force on the positioning sleeve 17, causing the second nut 15 to drive the positioning sleeve 17 to rotate together. However, since the contact part between the second nut 15 and the positioning sleeve 17 is too smooth and the friction is too low, it will be difficult to drive the positioning sleeve 17 to rotate together. Since the positioning sleeve 17 cannot rotate, the second nut 15 will also not be able to rotate. This can effectively prevent the second nut 15 from loosening due to vibration, which could lead to the loosening of the connection of the fire pipe body 1.

[0046] The foregoing has shown and described 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 embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe connection structure for fire engineering, comprising a sealing pipe (32), characterized in that: The sealing pipe (32) is fixedly connected with two first mounting rings (21), the first mounting ring (21) is communicated with the sealing pipe (32), the first mounting ring (21) is provided with a sealing mechanism inside, the sealing pipe (32) is inserted with two fire pipeline bodies (1), the two fire pipeline bodies (1) are connected with the first connecting pipe (2) and the second connecting pipe (5) through a plurality of clamping assemblies, the first connecting pipe (2) and the second connecting pipe (5) are connected through a fixing assembly; The sealing mechanism comprises a sealing ring (27), and the sealing ring (27) is fixedly connected with the first mounting ring (21); The second mounting ring (33) is arranged between the two first mounting rings (21), a plurality of through holes are arranged on the second mounting ring (33) in a penetrating manner, the through holes are communicated with the sealing pipe (32), and a positioning assembly is fixedly connected inside the through holes; The positioning assembly comprises a hollow plate (26), the hollow plate (26) is fixedly connected with the second mounting ring (33), the hollow plate (26) is connected with a piston column (24) through a second spring (25), the piston column (24) is in sliding connection with the through hole, a limiting ring (20) is arranged on the side, away from the fire pipeline body (1), of the piston column (24), the limiting ring (20) is fixedly connected with the second mounting ring (33), and a positioning hemisphere (19) is arranged inside the limiting ring (20); the positioning hemisphere (19) is connected with the piston column (24); The first connecting pipe (2) and the second connecting pipe (5) are provided with a plurality of limiting grooves (18) on the inner walls, the positioning hemisphere (19) is fixedly connected with the piston column (24), and the positioning hemisphere (19) is inserted into the limiting groove (18).

2. A pipe coupling structure for fire engineering according to claim 1, characterized in that: A V-shaped ring groove is formed in the sealing ring (27), a V-shaped reinforcing rebound plate (28) is fixedly connected inside the V-shaped ring groove, a plurality of protruding columns (29) are fixedly connected on the inner walls of the upper and lower sides of the V-shaped reinforcing rebound plate (28), and the protruding columns (29) on the upper and lower sides of the V-shaped reinforcing rebound plate (28) are installed alternately.

3. A pipe coupling structure for fire engineering according to claim 2, characterized in that: A reinforcing piece (30) is embedded inside the sealing ring (27), the reinforcing piece (30) is an elastic reinforcing piece, the two side edges of the top of the reinforcing piece (30) are of different lengths, and the long side edge of the top of the reinforcing piece (30) is close to the V-shaped reinforcing rebound plate (28).

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