Leak-proof pipeline connecting structure

Abstract

The utility model discloses a leakproof pipeline connecting structure, particularly relates to drainage pipeline technical field, including pipeline no. 1, pipeline no. 2, pipeline no. 1, pipeline no. 2, pipeline no. 1, pipeline no. 2 one end of opposite inner side is connected with flange, the two flange is connected through a plurality of bolts, between the two flange is embedded with seal ring no. 1 and seal ring no. Through the connectable mechanism, when the bolt is loosened, the two flanges can be tightly attached through the elastic force of the first spring and the fixing rod connected between the two pipelines, and the two flanges can be tightly attached to each other through the first sealing ring and the second sealing ring under the effect of good sealing performance. The situation that liquid in the pipeline leaks when the bolt is loosened is avoided, use is convenient, and practicability is higher; and through the limiting assembly, the bolt can be limited and fixed, the bolt is prevented from accidentally rotating and loosening, then the connecting and fixing effect between the two pipelines is improved, and the situation of loosening and leakage at the connecting position of the pipelines is avoided.

Description

Technical Field

[0001] This utility model relates to the field of drainage pipe technology, specifically to a leak-proof pipe connection structure. Background Technology

[0002] Municipal drainage networks are a crucial urban infrastructure. Wastewater generated from production and daily life must be transported through these networks to wastewater treatment plants for processing. Due to the long distances wastewater travels, connections and fixation between pipes are unavoidable. Existing municipal drainage pipes are typically connected using flange joints, socket joints, or similar methods.

[0003] Patent CN217208175U discloses a pipe connection structure for municipal water supply and drainage, including a connection assembly. The connection assembly consists of a right unit sleeve, a left unit sleeve, an inspection assembly, a first sealing ring, a second sealing ring, and locking bolts. The right unit sleeve has a first connecting flange on its outer side near the left unit sleeve, and a plug-in plate on its inner side near the left unit sleeve. Both the right and left unit sleeves have connecting grooves on their ends away from the second sealing ring. The left unit sleeve has a second connecting flange on its outer side near the right unit sleeve, and a plug-in groove is formed inside the left unit sleeve near the second connecting flange. The plug-in groove contains multiple sets of first sealing grooves. An inspection assembly is located at the upper end of the left unit sleeve, and the inspection assembly consists of a top cover, a connecting rod, a material barrier, and an inspection port.

[0004] The aforementioned connection structure for pipes used in municipal drainage employs flanges and bolts to connect the two pipes. However, prolonged exposure to air and factors such as humidity can corrode the bolts, causing them to loosen and affecting the connection, which in turn leads to leakage of the solution inside the pipe. Utility Model Content

[0005] The purpose of this invention is to provide a leak-proof pipe connection structure to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a leak-proof pipe connection structure, including pipe one and pipe two, each of pipe one and pipe two having a flange connected to one of their inner ends, the two flanges being connected by a number of bolts, a sealing ring one and a sealing ring two being embedded between the two flanges, with sealing ring one located inside sealing ring two, a connecting mechanism being provided on the outer sides of pipe one and pipe two, and a limiting component being provided in the connecting mechanism, the connecting mechanism including a collar, and the collar being sleeved on the outer side of pipe two, the outer wall of the collar being symmetrically provided with limiting plates, a retaining ring being slidably sleeved on the outer side of pipe two on the side of the limiting plate away from the flange, a fixing rod being symmetrically provided on the side of the retaining ring near the fixing rod, and one end of the fixing rod penetrating through the fixing rod, a spring being sleeved on the outer side of the fixing rod between the retaining ring and the fixing rod, a support plate being symmetrically provided on the outer side of pipe one, a fixing seat being provided on the side of the support plate away from the flange, and a through groove adapted to the fixing rod being opened on the side wall of both the fixing seat and the support plate.

[0007] Furthermore, the connecting mechanism includes a locking block. The fixed base has two chambers, one above the other and the other below, each communicating with a through groove. The locking block is rotatably installed in chamber two. One end of the fixed rod has several symmetrically arranged toothed grooves on its upper and lower walls. The locking block engages with the toothed grooves at the bottom of the fixed rod. A baffle and a torsion spring are symmetrically fitted on the outer wall of the connecting shaft of the locking block, with the baffle located closer to the locking block. The two ends of the torsion spring are fixedly connected to the baffle and the inner wall of chamber two, respectively. One end of the connecting shaft of the locking block is connected to a handle outside the fixed base. Through this connecting mechanism, even if the bolts are corroded and loose, the two flanges can be tightly fitted together, preventing water leakage and enhancing practicality.

[0008] Furthermore, the limiting component includes a sleeve, which is symmetrically arranged on the side of the retaining ring near the fixed rod. One end of the sleeve is provided with a limiting rod, and one end of the limiting rod is connected to a push plate inside the sleeve. A spring is provided on one side of the push plate inside the sleeve. The other end of the limiting rod is inserted into the insertion hole opened at one end of the bolt. Through the limiting component, the bolt can be limited to avoid the bolt from loosening and rotating, which would affect the connection effect of the pipeline.

[0009] Furthermore, a gear is rotatably installed inside the chamber, and the gear meshes with the tooth groove at the top of the fixed rod. A hand crank is movably mounted on one end of the connecting shaft of the gear outside the fixed seat. The connecting shaft of the gear is hexagonal prism-shaped at the outer end of the fixed seat, and the hexagonal prism part on the connecting shaft of the gear at one end of the hand crank is adapted to it, so as to drive the fixed rod to move by the gear, which is convenient for applying force to the fixed rod. The hand crank can be disassembled and installed for use.

[0010] Furthermore, one end of the spring is fixedly connected to the retaining ring, the locking block is arc-shaped, and the second chamber is provided with a positioning rod on the side wall near the support plate, with one end of the positioning rod abutting against one side of the locking block. The installation of the positioning rod can limit the locking block, so as to improve the limiting and fixing effect of the fixing rod.

[0011] Furthermore, the limiting rod has a hexagonal cross-section, the insertion hole is adapted to the limiting rod, and the two ends of the second spring are fixedly connected to the push plate and the sleeve respectively, so as to limit the bolt and prevent it from accidentally loosening and rotating.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0013] 1. This utility model, through a connectable mechanism, can use the elastic force of spring one, in conjunction with the fixing rod connecting the two pipes, to make the two flanges fit tightly together when the bolts are loose. With the help of sealing ring one and sealing ring two, it can achieve good sealing performance and prevent the leakage of liquid in the pipes when the bolts are loose. It is convenient to use and more practical.

[0014] 2. This utility model uses a limiting component to limit and fix the bolt, preventing it from rotating and loosening accidentally, thereby improving the connection and fixing effect between the two pipes and preventing loosening and leakage at the pipe connection. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a utility model Figure 1 A magnified structural diagram of A in the middle;

[0018] Figure 3 This is a schematic diagram of the structure between the retaining ring, the fixing rod, and the sleeve of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure between the sleeve and the limiting rod of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure between the card block, baffle and torsion spring of this utility model;

[0021] In the diagram: 1. Pipe 1; 2. Pipe 2; 3. Flange; 4. Bolt; 5. Sealing Ring 1; 6. Sealing Ring 2; 7. Collar; 8. Limiting Plate; 9. Retaining Ring; 10. Fixing Rod; 11. Spring 1; 12. Support Plate; 13. Fixing Seat; 14. Gear; 15. Clamping Block; 16. Baffle; 17. Torsion Spring; 18. Positioning Rod; 19. Sleeve; 20. Limiting Rod; 21. Push Plate; 22. Spring 2; 23. Chamber 1; 24. Chamber 2; 25. Hand Crank. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1 - Figure 5 The leak-proof pipe connection structure shown includes pipe 1 and pipe 2. Both pipe 1 and pipe 2 have flanges 3 connected to their inner ends. The two flanges 3 are connected by several bolts 4. A sealing ring 5 and a sealing ring 6 are embedded between the two flanges 3, with sealing ring 5 located inside sealing ring 6. A connection mechanism is provided on the outer sides of pipe 1 and pipe 2, and the connection mechanism includes a limiting component. The connection mechanism includes a collar 7, which is fitted onto the outer side of pipe 2. A limiting plate 8 is symmetrically provided on the outer wall. A retaining ring 9 is slidably sleeved on the side of the limiting plate 8 away from the flange 3 on the outer side of the pipe 2. A fixing rod 10 is symmetrically provided on the side of the retaining ring 9 near the fixing rod 10, and one end of the fixing rod 10 passes through the fixing rod 10. A spring 11 is sleeved on the outer side of the fixing rod 10 between the retaining ring 9 and the fixing rod 10. A support plate 12 is symmetrically provided on the outer side of the pipe 1. A fixing seat 13 is provided on the side of the support plate 12 away from the flange 3. The side walls of the fixing seat 13 and the support plate 12 are both provided with through grooves that are compatible with the fixing rod 10.

[0024] In this example, the connecting mechanism includes a locking block 15. The upper and lower parts of the fixed base 13 are respectively provided with a first chamber 23 and a second chamber 24 communicating with the through groove. The locking block 15 is rotatably installed in the second chamber 24. The upper and lower walls of one end of the fixed rod 10 are symmetrically provided with several toothed grooves. The locking block 15 meshes with the toothed grooves at the bottom of the fixed rod 10. The outer wall of the connecting shaft of the locking block 15 is symmetrically fitted with a baffle 16 and a torsion spring 17, and the baffle 16 is located on the side closer to the locking block 15. The two ends of the torsion spring 17 are fixedly connected to the baffle 16 and the inner wall of the second chamber 24, respectively. One end of the connecting shaft of the locking block 15 is connected to a handle outside the fixed base 13. Through the connecting mechanism, when the bolt 4 is corroded and loosened, the two flanges 3 can be tightly fitted together, avoiding water leakage during transportation, and making it more practical. In this example, the limiting component includes a sleeve 19, which is symmetrically arranged on the side of the retaining ring 9 near the fixed rod 10. One end of the sleeve 19 is provided with a limiting rod 20, and one end of the limiting rod 20 is connected to a push plate 21 inside the sleeve 19. A spring 22 is provided on one side of the push plate 21 inside the sleeve 19. The other end of the limiting rod 20 is inserted into the insertion hole opened at one end of the bolt 4. Through the limiting component, the bolt 4 can be limited to avoid the bolt 4 from loosening and rotating, which would affect the connection effect of the pipeline. In this example, a gear 14 is rotatably installed inside chamber 23, and the gear 14 meshes with the tooth groove at the top of the fixed rod 10. A hand crank 25 is movably sleeved on one end of the connecting shaft of the gear 14 outside the fixed seat 13. The connecting shaft of the gear 14 is hexagonal prism-shaped at the outer end of the fixed seat 13, and the hexagonal prism part on the connecting shaft of the gear 14 at one end of the hand crank 25 is adapted to it, so that the fixed rod 10 can be moved by the gear 14, which facilitates the application of force to the fixed rod 10. The hand crank 25 can be disassembled and installed. In this example, one end of the spring 11 is fixedly connected to the retaining ring 9, the locking block 15 is arc-shaped, and a positioning rod 18 is provided on the side wall of chamber 24 near the support plate 12. One end of the positioning rod 18 abuts against one side of the locking block 15. The installation of the positioning rod 18 can limit the locking block 15, so as to improve the limiting and fixing effect of the fixed rod 10. In this example, the limit rod 20 has a hexagonal cross section, the insertion hole is adapted to the limit rod 20, and the two ends of the spring 22 are fixedly connected to the push plate 21 and the sleeve 19 respectively, so as to limit the bolt 4 and prevent it from accidentally loosening and rotating.

[0025] The working principle of this utility model is as follows: In use, two flanges 3 are connected and fixed using multiple bolts 4. Simultaneously, sealing rings 5 ​​and 6 are installed during connection to ensure a good seal at the joint and prevent leakage. When connecting the fixing rod 10 to the fixing seat 13, the retaining ring 9 is pushed to slide on the pipe 2, causing one end of the fixing rod 10 to pass through the hole in the limiting plate 8. The retaining ring 9 and the fixing rod 10 then work together to compress the spring 11. At the same time, one end of the fixing rod 10 will pass through… The through slots on the support plate 12 and the fixed seat 13 cause the toothed grooves on the upper and lower walls of one end of the fixed rod 10 to mesh with the gear 14 and the locking block 15, respectively. Then, after one end of the hand crank 25 is sleeved on one end of the connecting shaft of the gear 14, the connecting shaft of the gear 14 is driven by rotating the hand crank 25, thereby driving the gear 14 to rotate. The gear 14 drives the fixed rod 10 to pull the retaining ring 9 to move and continue to compress the spring 11. At the same time, the movement of the fixed rod 10 will cause the inner wall of the toothed groove below the fixed rod 10 to compress and push the locking block 15 around its connection. The shaft rotates, causing the end of the locking block 15 that engages with the toothed groove to move out. Simultaneously, the rotation of the locking block 15 drives its connecting shaft and the baffle 16, causing the baffle 16 to twist the torsion spring 17. When the toothed groove of the locking block 15 is misaligned, the locking block 15 will return to its original position under the torque of the torsion spring 17, causing one end of the locking block 15 to engage with a toothed groove again. This process repeats until the fixing rod 10 pulls the retaining ring 9 to the appropriate position. This allows it to pull on pipes 1 and 2 when the bolt 4 loosens, causing the pipe connection to become loose. The two flanges 3 are tightly fitted and fixed together, thus preventing the pipe connection from loosening and leaking, making it more practical. At the same time, while the fixing rod 10 is connected to the fixing seat 13, the retaining ring 9 pushes the sleeve 19 and the limiting rod 20 on one side to move, so that one end of the limiting rod 20 is inserted into the corresponding bolt 4's hole, thus restricting and fixing the bolt 4, preventing it from loosening and rotating, which would affect the connection and fixing effect of the pipe, and prevent leakage. It is convenient to use and more practical.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A leak-proof pipe connection structure, comprising a pipe 1 (1) and a pipe 2 (2), wherein the pipe 1 (1) and the pipe 2 (2) are both connected to flanges (3) at their opposite inner ends, and the two flanges (3) are connected by a plurality of bolts (4), characterized in that: A sealing ring 1 (5) and a sealing ring 2 (6) are embedded between the two flanges (3), and the sealing ring 1 (5) is located on the inner side of the sealing ring 2 (6). A connecting mechanism is provided on the outer sides of the pipe 1 (1) and the pipe 2 (2), and a limiting component is provided in the connecting mechanism. The connecting mechanism comprises a sleeve ring (7), and the sleeve ring (7) is sleeved on the outer side of the pipe 2 (2). A limiting plate (8) is symmetrically provided on the outer wall of the sleeve ring (7). A retaining ring ( 9), a fixing rod (10) is symmetrically arranged on one side of the retaining ring (9) close to the fixing rod (10), and one end of the fixing rod (10) passes through the fixing rod (10), a spring (11) is sleeved between the retaining ring (9) and the fixing rod (10) on the outside of the fixing rod (10), a support plate (12) is symmetrically arranged on the outside of the pipe (1), a fixing seat (13) is arranged on the side of the support plate (12) away from the flange (3), and the side walls of the fixing seat (13) and the support plate (12) are both provided with through grooves adapted to the fixing rod (10).

2. The anti-leakage pipe connection structure according to claim 1, characterized in that: The connecting mechanism comprises a clamping block (15), a chamber 1 (23) and a chamber 2 (24) which are communicated with the through groove are respectively provided in the upper and lower parts of the fixing seat (13), the clamping block (15) is rotatably installed in the chamber 2 (24), a plurality of tooth grooves are symmetrically provided on the upper and lower wall surfaces of one end of the fixing rod (10), the clamping block (15) is meshed with the tooth grooves at the bottom of the fixing rod (10), a baffle (16) and a torsion spring (17) are symmetrically sleeved on the outer wall of the connecting shaft of the clamping block (15), and the baffle (16) is located on a side close to the clamping block (15), two ends of the torsion spring (17) are respectively fixedly connected to the baffle (16) and the inner wall of the chamber 2 (24), and one end of the connecting shaft of the clamping block (15) is connected to a handle outside the fixing seat (13).

3. The anti-leakage pipe connection structure according to claim 2, characterized in that: The limiting assembly comprises a sleeve (19), and the sleeve (19) is symmetrically arranged on a side of the retaining ring (9) close to the fixing rod (10), a limiting rod (20) is arranged at one end of the sleeve (19), and one end of the limiting rod (20) is connected to a push plate (21) in the sleeve (19), a spring 2 (22) is arranged on one side of the push plate (21) in the sleeve (19), and the other end of the limiting rod (20) is inserted into a socket opened at one end of the bolt (4).

4. The anti-leakage pipe connection structure according to claim 2, characterized in that: A gear (14) is rotatably mounted in the chamber (23), and the gear (14) is meshed with a tooth groove at the top of the fixed rod (10). A hand crank (25) is movably mounted on one end of the connecting shaft of the gear (14) outside the fixed seat (13). The connecting shaft of the gear (14) is located on the outside of the fixed seat (13) and is in the shape of a hexagonal prism, and the hexagonal prism part on the connecting shaft of the gear (14) at one end of the hand crank (25) is matched.

5. The anti-leakage pipe connection structure according to claim 2, characterized in that: One end of the spring 1 (11) is fixedly connected to the retaining ring (9), the clamping block (15) is arc-shaped, and a positioning rod (18) is provided on a side wall of the chamber 2 (24) close to the support plate (12), and one end of the positioning rod (18) is in contact with one side of the clamping block (15).

6. The anti-leakage pipe connection structure according to claim 3, characterized in that: The cross section of the limiting rod (20) is hexagonal, the insertion hole is matched with the limiting rod (20), and the two ends of the spring (22) are respectively fixedly connected to the push plate (21) and the sleeve (19).

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