A flexible socket joint structure for ductile iron composite tubes to prevent loosening

Abstract

This utility model discloses a flexible ductile iron composite socket joint structure to prevent loosening, relating to the field of joint structure technology. The utility model includes a joint body with a reinforcing ring, an upper clamp, and a lower clamp on its outer surface. The upper clamp has grooves on both sides of its top, and the lower clamp has threaded cylinders on both sides of its bottom. By incorporating the upper clamp, lower clamp, bolts, and threaded cylinders, after the joint body is inserted into the socket, the operator only needs to align the upper and lower clamps and then screw the bolts into the threaded cylinders to achieve a tight fixation. This mechanical fastening structure firmly secures the socket to the joint body, preventing cracking and aging of the adhesive due to expansion and contraction stress, which could ultimately lead to seal failure. This significantly improves the sealing performance and structural stability of the socket connection.

Description

Technical Field

[0001] This utility model relates to the field of interface structure technology, specifically to a flexible ductile iron composite socket interface structure that prevents loosening. Background Technology

[0002] The traditional connection process for socket pipes, which are widely used in municipal drainage, building water supply and drainage and farmland irrigation, usually requires that industrial glue be evenly applied to the interface before the interface is inserted into the socket of the socket pipe to achieve a sealed connection.

[0003] However, socket pipes are mostly buried in underground environments, where the humidity and temperature of the underground soil vary significantly with the seasons. These complex and changeable environmental conditions cause the socket pipes and interface materials to continuously expand and contract due to thermal expansion. Since the coefficients of thermal expansion of the pipes and interfaces often differ, repeated expansion and contraction deformation will continuously exert tensile and compressive stresses on the adhesive layer at the interface, which can easily cause the adhesive layer to crack, age, or even fall off, thereby damaging the sealing performance of the interface and causing leakage problems. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a flexible ductile iron composite socket interface structure that avoids loosening, so as to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flexible ductile iron composite socket joint structure to prevent loosening, comprising a connector body, the outer surface of which is provided with a reinforcing ring, an upper clamp and a lower clamp, the upper clamp having grooves on both sides of its top, and the lower clamp having threaded cylinders on both sides of its bottom, bolts extending into the threaded cylinders being installed inside the grooves, and a sealing cap being provided inside the grooves, with a magnetic ring at the bottom of the sealing cap.

[0006] Furthermore, the reinforcing ring is provided in several groups, and the cross-section of each group of reinforcing rings is rectangular.

[0007] By adopting the above technical solutions, the setting of several sets of reinforcing rings can distribute the force and enhance the overall structural strength, while the rectangular cross-section can provide a more stable support surface and fit, further improving the reinforcement effect.

[0008] Furthermore, the inner wall of the settling tank is provided with a sealing ring, which is made of silicone rubber material, and the settling tank is compatible with the sealing cover.

[0009] By adopting the above technical solution, the silicone rubber sealing ring has excellent elasticity and sealing performance. When matched with a suitable groove and sealing cap, it can effectively block the intrusion of water vapor and impurities and prevent bolts from rusting.

[0010] Furthermore, the top of the sealing cover is provided with a connecting rope, and one end of the connecting rope is connected to the upper clamp.

[0011] By adopting the above technical solution, the connecting rope can bind the sealing cover to the upper clamp, preventing the sealing cover from being lost or dropped, and at the same time facilitating the use of the sealing cover for bolt maintenance.

[0012] Furthermore, both the upper and lower clamps have grooves on their inner sides, and the grooves correspond to the positions of the reinforcing rings.

[0013] By adopting the above technical solution, the corresponding fit between the groove and the reinforcing ring allows the clamp to fit the pipe structure more closely, making the pipe more firmly "engaged" and further improving the overall connection strength.

[0014] Furthermore, the joint body, upper clamp, lower clamp, and reinforcing ring are all made of ductile iron.

[0015] By adopting the above technical solutions, ductile iron has excellent corrosion resistance and durability, which can extend the service life of interface structures, reduce the erosion and wear of components by underground environments, and reduce maintenance costs.

[0016] Furthermore, the bolts are provided in multiple sets, and each set of bolts has a spring washer fitted on its outer surface.

[0017] By adopting the above technical solutions, multiple sets of bolts can ensure that the clamp is subjected to uniform force, thereby improving the tightness of the connection; the spring washers can effectively prevent the bolts from loosening due to vibration or thermal expansion and contraction, ensuring long-term stability of the connection.

[0018] Furthermore, the inner wall of the connector body is coated with an epoxy resin layer.

[0019] By adopting the above technical solution, the epoxy resin layer has excellent corrosion resistance. When sprayed onto the inner wall of the joint body, it can isolate the transported medium (such as sewage or rainwater) from erosion of the inner wall and extend the service life of the joint body.

[0020] In summary, this utility model has the following beneficial effects: By incorporating an upper clamp, a lower clamp, bolts, and a threaded cylinder, after the connector body is inserted into the socket tube, the operator only needs to align the upper and lower clamps and then screw the bolts into the threaded cylinder to achieve a tight fixation. This mechanical fastening structure firmly secures the socket tube to the connector body, preventing cracking and aging of the adhesive due to expansion and contraction stress, which could ultimately lead to sealing failure. This significantly improves the sealing performance and structural stability of the socket tube connection. Furthermore, based on the aforementioned fastening structure, this utility model further adds a sealing cap, a magnetic ring, a sealing ring, and a recess. After the bolts are tightened, the operator can insert the sealing cap into the recess. The magnetic ring quickly achieves the adsorption and positioning of the sealing cap, ensuring convenient and stable installation. The sealing ring fills the gap between the sealing cap and the recess, greatly enhancing the sealing performance. Additionally, since the bolts are entirely located inside the threaded cylinder, the corrosion problem of bolts in underground conditions is fundamentally solved, significantly extending their service life and greatly reducing the frequency of subsequent maintenance and replacement. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of the connector of this utility model;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the threaded cylinder of this utility model;

[0024] Figure 4 This is a schematic diagram of the settling tank structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the sealing cap structure of this utility model.

[0026] Figure 6 This is a schematic cross-sectional view of the connector body of this utility model.

[0027] In the diagram: 1. Connector body; 2. Reinforcing ring; 3. Upper clamp; 4. Lower clamp; 5. Groove; 6. Threaded cylinder; 7. Connecting rope; 8. Sealing cap; 9. Bolt; 10. Sealing ring; 11. Sink; 12. Magnetic ring; 13. Spring washer; 14. Epoxy resin layer. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The embodiments of this utility model will be described below based on its overall structure.

[0030] Example 1: A flexible ductile iron composite socket joint structure to prevent loosening, such as... Figures 1-6 As shown, the connector includes a main body 1. The outer surface of the main body 1 is provided with a reinforcing ring 2, an upper clamp 3, and a lower clamp 4. The upper clamp 3 has countersunk grooves 11 on both sides of its top, and the lower clamp 4 has threaded cylinders 6 on both sides of its bottom. Bolts 9 extending into the threaded cylinders 6 are installed inside the countersunk grooves 11. Multiple sets of bolts 9 are provided, and each set of bolts 9 has a spring washer 13 fitted onto its outer surface. Multiple sets of bolts 9 ensure even force distribution on the clamps, improving connection tightness. The spring washer 13 effectively prevents the bolts 9 from loosening due to vibration or thermal expansion and contraction, ensuring long-term connection stability. The inner surface of the countersunk groove 11... The joint is equipped with a sealing cover 8, with a magnetic ring 12 at the bottom and a connecting rope 7 at the top. One end of the connecting rope 7 is connected to the upper clamp 3. The connecting rope 7 can bind the sealing cover 8 to the upper clamp 3 to prevent the sealing cover 8 from being lost or dropped. At the same time, it is convenient to use the sealing cover 8 for bolt 9 maintenance. The joint body 1, upper clamp 3, lower clamp 4 and reinforcing ring 2 are all made of ductile iron. Ductile iron has excellent corrosion resistance and durability, which can extend the service life of the interface structure, reduce the corrosion and wear of components in the underground environment, and reduce maintenance costs.

[0031] See Figure 1 , Figure 2 and Figure 6 In the above embodiment, the reinforcing ring 2 is provided in several groups, and the cross-section of each group of reinforcing ring 2 is rectangular. The arrangement of several groups of reinforcing ring 2 can distribute the force and enhance the overall structural strength, while the rectangular cross-section can provide a more stable support surface and fit, further improving the reinforcement effect.

[0032] See Figures 1-4 In the above embodiment, the inner sides of the upper clamp 3 and the lower clamp 4 are provided with grooves 5. The grooves 5 correspond to the positions of the reinforcing ring 2. The corresponding cooperation between the grooves 5 and the reinforcing ring 2 can make the clamp fit the pipe structure better, so that the pipe is "bitten" more firmly, and further improve the overall connection strength.

[0033] See Figure 6 In the above embodiments, the inner wall of the connector body 1 is coated with an epoxy resin layer 14. The epoxy resin layer 14 has excellent corrosion resistance. When sprayed on the inner wall of the connector body 1, it can isolate the conveying medium (such as sewage or rainwater) from erosion of the inner wall and extend the service life of the connector body 1.

[0034] Example 2: To ensure a tight seal between the settling tank and the sealing cap, Example 2 is an improvement upon Example 1. (See attached document for details.) Figures 3-4The inner wall of the settling tank 11 is provided with a sealing ring 10, which is made of silicone rubber material. The settling tank 11 is compatible with the sealing cover 8. The silicone rubber sealing ring 10 has excellent elasticity and sealing performance. When matched with the matching settling tank 11 and sealing cover 8, it can effectively block the intrusion of water vapor and impurities and prevent the bolts 9 from rusting.

[0035] The implementation principle of this utility model is as follows: The operator first inserts the connector body 1 into the socket tube to complete the basic connection, then aligns the upper clamp 3 and the lower clamp 4, and then screws multiple sets of bolts 9 with spring washers 13 through the groove 11 of the upper clamp 3 into the threaded cylinder 6 of the lower clamp 4, so that the upper clamp 3 and the lower clamp 4 can tightly fix the socket tube to the connector body 1. After the bolts 9 are tightened, the operator inserts the sealing cap 8 into the groove 11. The magnetic ring 12 will attract and fix the sealing cap 8 in the groove 11, while the silicone rubber sealing ring 10 on the inner wall of the groove 11 fills the gap to form a sealing barrier, so that the bolts 9 are in a closed space to avoid corrosion, and the spring washers 13 prevent the bolts 9 from loosening.

[0036] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A flexible ductile iron composite socket joint structure to prevent loosening, comprising a connector body (1), characterized in that: The outer surface of the connector body (1) is provided with a reinforcing ring (2), an upper clamp (3) and a lower clamp (4). The upper clamp (3) has grooves (11) on both sides of its top. The lower clamp (4) has threaded cylinders (6) on both sides of its bottom. The groove (11) is equipped with bolts (9) that extend into the threaded cylinder (6). The groove (11) is equipped with a sealing cover (8). The bottom of the sealing cover (8) is equipped with a magnetic ring (12).

2. The flexible ductile iron composite socket joint structure for preventing loosening as described in claim 1, characterized in that: The reinforcing ring (2) is provided in several groups, and the cross-section of each group of reinforcing rings (2) is rectangular.

3. The flexible ductile iron composite socket joint structure for preventing loosening according to claim 1, characterized in that: The inner wall of the settling tank (11) is provided with a sealing ring (10), which is made of silicone rubber material, and the settling tank (11) is compatible with the sealing cover (8).

4. The flexible ductile iron composite socket joint structure for preventing loosening according to claim 1, characterized in that: The top of the sealing cover (8) is provided with a connecting rope (7), and one end of the connecting rope (7) is connected to the upper clamp (3).

5. The flexible ductile iron composite socket joint structure for preventing loosening according to claim 1, characterized in that: The inner sides of the upper clamp (3) and the lower clamp (4) are provided with grooves (5), and the grooves (5) correspond to the positions of the reinforcing ring (2).

6. The ductile iron composite flexible socket joint structure for preventing loosening according to claim 1, characterized in that: The joint body (1), upper clamp (3), lower clamp (4) and reinforcing ring (2) are all made of ductile iron.

7. The flexible ductile iron composite socket joint structure for preventing loosening according to claim 1, characterized in that: The bolts (9) are provided in multiple sets, and each set of bolts (9) has a spring washer (13) fitted on its outer surface.

8. The flexible ductile iron composite socket joint structure for preventing loosening according to claim 1, characterized in that: The inner wall of the connector body (1) is coated with an epoxy resin layer (14).

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