Soft and hard double-end connecting structure capable of achieving stable connection

Abstract

The soft and hard double-end connecting structure comprises a hollow tubular main body with two open ends, a first connector and a second connector are arranged at the two ends of the body respectively, the first connector is used for being connected with a hose, and the second connector is used for being connected with a hard pipe. A pipe clamp is arranged in the first connector in a surrounding mode, a connecting gap exists between the pipe clamp and the inner wall of the first connector, and a hose is inserted into the connecting gap. A soft connecting sleeve is arranged on the inner wall of the second connector and used for clamping the outer wall of the hard pipe when the hard pipe is inserted into the second connector. The utility model provides a connecting structure which can be used for switching and connecting soft and hard pipes conveniently and can ensure high safety and stability.

Description

Technical Field

[0001] This utility model belongs to the field of connector manufacturing, and in particular relates to a stable connection structure with both soft and hard ends. Background Technology

[0002] In various fluid transport systems, water pipe connectors are critical components, and their performance directly affects the overall system operation. Traditional water pipe connectors come in various forms, commonly including welded, threaded, and clamp-type connections. Under normal static and stable environments, these connectors can meet basic connection and sealing requirements, ensuring the normal transport of water and other fluid media by the water pipe system.

[0003] However, as engineering applications become increasingly complex, existing connectors have revealed numerous problems. In connection scenarios involving switching between rigid and flexible tubing, existing connectors cannot provide a satisfactory adaptation method. Rigid tubing is rigid and shape-stable, while flexible tubing is flexible and bendable; their physical properties differ significantly. Ordinary connectors struggle to ensure a seal while simultaneously meeting the rigid connection requirements of rigid tubing and the flexible adaptation of flexible tubing, leading to leaks at the connection points and affecting the normal operation of the system.

[0004] Insufficient stability is also a major drawback of existing connection joints. Especially in earthquake-prone areas, strong vibrations can subject pipeline systems to continuous and complex stress. Conventional connection joints cannot guarantee a stable connection under such vibration conditions. The joints may loosen, shift, or even detach due to vibration, leading to water pipe rupture and severe flooding. This not only wastes water resources but may also damage surrounding building structures and electrical equipment, posing a significant threat to people's lives and property.

[0005] For joints equipped with grounding bolts, existing designs cannot guarantee sufficient strength. In some locations with high electrical safety requirements, such as the chemical and electronics industries, water pipe systems need to be grounded using grounding bolts to dissipate static electricity or serve as part of the grounding circuit for electrical equipment. However, in actual operating conditions, when pipelines are subjected to internal fluid pressure, external mechanical stress, and potential vibration, the grounding bolts often break or deform due to insufficient strength, thereby compromising the effectiveness of the grounding, failing to meet electrical safety standards, and increasing potential safety risks. Utility Model Content

[0006] The purpose of this invention is to provide a stable soft and hard double-ended connection structure to solve the technical problems of unstable connection and poor shock resistance in soft and hard double-ended connections.

[0007] To achieve the above objectives, the specific technical solution of the stable connection structure with both soft and hard ends of this utility model is as follows:

[0008] A stable connection structure with both flexible and rigid ends includes a hollow tubular body with openings at both ends;

[0009] The main body has a first connector and a second connector at its two ends. The first connector is used to connect with a flexible tube, and the second connector is used to connect with a rigid tube.

[0010] A tube clamp is provided around the inside of the first connector, and there is a connection gap between the tube clamp and the inner wall of the first connector. The connection gap is used for the insertion of the flexible tube.

[0011] The inner wall of the second connector is provided with a flexible connecting sleeve, which is used to clamp the outer wall of the rigid tube when the rigid tube is inserted into the second connector.

[0012] As a further improvement of this utility model, a screw hole is provided through the surface of the main body, and a grounding bolt is disposed on the main body through the screw hole.

[0013] As a further improvement of this utility model, the main body surface is provided with reinforcing ribs extending from the screw hole to the edge of the main body.

[0014] As a further improvement of this utility model, the outer surfaces of the first connector and the second connector are externally threaded.

[0015] As a further improvement of this utility model, locking nuts are connected to the outer surfaces of the first connector and the second connector.

[0016] As a further improvement of this utility model, the tube clamp protrudes from the opening end of the first connector toward the inner wall of the first connector to form a connection limit.

[0017] As a further improvement of this utility model, a sealing ring is provided in the connection gap, and the sealing ring is located between the outer wall of the hose and the inner wall of the first connector.

[0018] As a further improvement of this utility model, a washer is provided on the outer surface of the second connector with respect to the inner side of the opening of the second connector, so as to ensure the sealing performance when the second connector is connected to the inner threaded surface of the rigid pipe through the outer threaded structure.

[0019] As a further improvement of this utility model, the reinforcing ribs are radially distributed from the screw holes, and the thickness gradually decreases from the screw holes to the edge of the main body, so as to enhance the structural strength of the main body at the grounding bolt.

[0020] As a further improvement of this utility model, the inner wall of the pipe clamp is provided with spiral raised anti-slip texture to increase the friction between the pipe clamp and the outer wall of the hose.

[0021] Beneficial effects:

[0022] By incorporating a hose clamp inside the first connector, with a connection gap between the clamp and the inner wall of the first connector for hose insertion, the hose can be easily inserted and secured. This design not only simplifies the installation process but also ensures a secure connection between the hose and the connector. A flexible sleeve is installed on the inner wall of the second connector to ensure sufficient clamping force when a rigid tube is inserted, thereby achieving a tight connection between the rigid tube and the connector. The sealing ring in the first connector is located between the outer wall of the hose and the inner wall of the first connector, effectively preventing liquid leakage; while the gasket on the outer surface of the second connector ensures a tight seal when connected to the rigid tube. This dual protection enhances the overall system's waterproof and leak-proof capabilities.

[0023] The main body has a through-hole for installing grounding bolts, and the surface of the main body is provided with radially distributed and gradually thinning reinforcing ribs extending outward from the bolt holes. This not only enhances the structural strength of the main body at the grounding bolts, but also improves the stability of the overall structure under vibration, making it particularly suitable for use in earthquake-prone areas.

[0024] The hose clamp features a spiral-shaped, raised anti-slip texture inside, increasing the friction between the clamp and the outer wall of the hose and preventing loosening or detachment due to vibration or other reasons. Meanwhile, the locking nut design further ensures the tightness and safety of the connection.

[0025] The external threaded first and second connectors facilitate quick and accurate docking with corresponding pipes, and the installation process can be easily completed when used with a lock nut. When maintenance or replacement is required, they can also be quickly disassembled, greatly facilitating the user's operation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a stable connection structure with both soft and hard ends according to the present invention.

[0027] Figure 2 A side view of a stable, flexible and rigid double-ended connection structure;

[0028] Figure 3 for Figure 2 Sectional view of aa in the middle;

[0029] Figure 4 This is a schematic diagram of the structure of Example 2;

[0030] The markings in the diagram are as follows: 1. Main body; 11. Screw hole; 12. Grounding bolt; 13. Reinforcing rib; 2. First connector; 21. Pipe clamp; 211. Connection limit; 22. Connection gap; 23. External thread structure; 24. Locking nut; 25. Sealing ring; 3. Second connector; 31. Flexible connecting sleeve; 32. Washer. Detailed Implementation

[0031] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0032] Example 1:

[0033] like Figure 1-3 As shown, a stable, flexible, and rigid double-ended connection structure is used for connecting water pipes. The first connector 2 at both ends of the zinc alloy main body 1 is used to connect flexible hoses, and the second connector 3 is used to connect steel pipes. A screw hole 11 is provided through the middle surface of the main body 1. A stainless steel grounding bolt 12 passes through the screw hole 11, connecting to the grounding system. Alternatively, the grounding bolt enables a good electrical connection between the water pipes, allowing the entire water pipe system to become part of the grounding conductor. This serves to dissipate static electricity or act as an auxiliary path for the grounding circuit of electrical equipment, ensuring electrical safety and preventing the accumulation of static electricity that could cause danger. The outer surfaces of both ends of the main body 1 have external thread structures 23, which are matched with the internal thread structure of the locking nut 24. Tightening the locking nut 24 at both ends of the main body 1 tightly connects the water pipes, ensuring a secure connection that can withstand the pressure of the fluid within the pipe without loosening or disengaging. This guarantees the sealing and stability of the pipeline system. Compared to some permanent connection methods such as welding or gluing, this method facilitates later maintenance, component replacement, or system modification. Furthermore, the tightness of the connection can be fine-tuned by rotating the locking nut to adapt to different installation conditions and requirements, ensuring the sealing and reliability of the connection. When the pipeline system expands or contracts due to temperature changes or other factors, the nuts can be adjusted appropriately to compensate for some of the expansion and contraction, reducing the impact on the pipeline system.

[0034] A hose clamp 21, made of carbon steel, is arranged around the inside of the first connector 2. A connection gap 22 exists between the hose clamp 21 and the inner wall of the first connector 2. After the hose is inserted into the first connector 2, it enters the connection gap 22. A connection limiter 211 protruding towards the inner wall of the first connector is provided at the front end of the hose clamp 21 to prevent the hose from slipping out after entering the connection gap 22. A sealing ring 25 is provided on the inner wall of the first connector within the connection gap 22. The sealing ring 25 fills the gap between the hose and the first connector 2, ensuring a tight seal between them. Simultaneously, the inner wall of the hose clamp 21 has spirally raised anti-slip textures to increase the friction between the hose clamp 21 and the hose, further preventing the hose from slipping after connection.

[0035] A rubber flexible sleeve 31 is tightly fitted against the inner wall of the second connector 3. When the rigid steel pipe is inserted into the second connector 3, the flexible sleeve 31 first fills the gap between the rigid pipe and the inner wall of the second connector, forming an effective sealing barrier to prevent fluid leakage from the connection between the rigid pipe and the connector, ensuring the sealing of the entire pipeline system. Secondly, when subjected to vibration or external impact, the flexible sleeve 31, with its own elastic properties, can effectively buffer the impact force on the rigid pipe, reducing the impact of vibration on the rigid pipe and the entire connection structure. In earthquake-prone areas or environments with frequent mechanical vibration, this can significantly improve the stability of the connection structure, prevent the rigid pipe from loosening or falling off due to vibration, and extend the service life of the pipeline system. This tight clamping ensures that the rigid pipe is firmly positioned after connection and will not easily shift. Even under conditions of fluid pressure fluctuations inside the pipeline system or certain tensile forces externally, a reliable connection between the rigid pipe and the second connector 3 can be guaranteed. In actual working conditions, due to factors such as temperature changes and pipeline installation stress, the rigid pipe may undergo slight deformation. The elasticity of the flexible connecting sleeve 31 allows it to deform to a certain extent with the slight deformation of the rigid pipe, always maintaining good contact and sealing performance with the rigid pipe, while not affecting the overall stability of the connection structure, thus improving the adaptability of the connection structure to complex working conditions.

[0036] A reinforcing rib 13 extends outward from the screw hole 11 in the middle of the outer surface of the main body 1. When the grounding bolt 12 passes through the screw hole and connects to the main body, the reinforcing rib 13 can disperse the stress at the grounding bolt, preventing the main body from cracking or deforming due to stress concentration in this area. Especially when subjected to large external forces or vibrations, it can effectively enhance the structural strength of the main body in the area near the grounding bolt, ensuring the stability and reliability of the connection structure. The reinforcing rib 13 is radially distributed and its thickness gradually decreases from the screw hole to the edge of the main body, forming a reinforced support structure on the surface of the main body. In this embodiment, it is a cross-shaped reinforcing rib. This structure can improve the overall rigidity of the main body, making it less prone to deformation when subjected to external pressure or torque, thereby maintaining the relative positional accuracy of the first connector and the second connector, ensuring the stability of the connection between the flexible hose and the rigid pipe, and preventing problems such as loosening or leakage caused by deformation of the main body.

[0037] Example 2:

[0038] like Figure 4 As shown, the second connector 3 of a stable soft and hard double-ended connection structure is used for terminal connection. The external thread structure on the outer surface and the internal thread structure of the hard pipe achieve threaded connection. The external thread structure of the second connector is provided with a washer 32 surrounding the inner side of the interface to further ensure the sealing of the connection.

[0039] In summary, the connection structure of this utility model features a dedicated first connector for flexible hose connections and a second connector for rigid pipe connections. The first connector's inner clamp adapts to the connection gap for flexible hose insertion, and the clamp's anti-slip texture enhances connection stability. The second connector's inner connecting groove tightly clamps the rigid pipe with the flexible connecting sleeve, accommodating minor displacement of the rigid pipe, effectively solving the problem of connecting flexible and rigid pipes and greatly improving adaptability. In earthquake-prone areas, existing connection joints lack stability; this application ensures connection stability through the use of a flexible connecting sleeve. The main body of this application is equipped with screw holes and grounding bolts to meet electrical safety grounding requirements, and is also equipped with radial reinforcing ribs to enhance the structural strength at the grounding bolts, effectively resisting vibration stress and ensuring the stability of the connection structure under vibration, reducing the risk of pipe connection failure due to vibration.

[0040] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A stable, flexible, and rigid dual-ended connection structure, characterized in that, It includes a hollow tubular body with openings at both ends; The main body has a first connector and a second connector at its two ends. The first connector is used to connect with a flexible tube, and the second connector is used to connect with a rigid tube. A tube clamp is provided around the inside of the first connector, and there is a connection gap between the tube clamp and the inner wall of the first connector. The connection gap is used for the insertion of the flexible tube. The inner wall of the second connector is provided with a flexible connecting sleeve, which is used to clamp the outer wall of the rigid tube when the rigid tube is inserted into the second connector.

2. The stable connection structure with both hard and soft ends according to claim 1, characterized in that, A screw hole is provided through the surface of the main body, and a grounding bolt is installed on the main body through the screw hole.

3. The stable connection structure with both soft and hard ends according to claim 2, characterized in that, The main body surface is provided with reinforcing ribs extending from the screw hole to the edge of the main body.

4. The stable connection structure with both hard and soft ends according to claim 1, characterized in that, The outer surfaces of the first connector and the second connector are externally threaded.

5. The stable connection structure with both hard and soft ends according to claim 4, characterized in that, Locking nuts are attached to the outer surfaces of the first and second connectors.

6. The stable connection structure with both hard and soft ends according to claim 1, characterized in that, The tube clamp protrudes from the open end of the first connector toward the inner wall of the first connector to form a connection limit.

7. The stable connection structure with both hard and soft ends according to claim 1, characterized in that, A sealing ring is provided in the connection gap, and the sealing ring is located between the outer wall of the hose and the inner wall of the first connector.

8. The stable connection structure with both hard and soft ends according to claim 4, characterized in that, A washer is provided on the outer surface of the second connector with respect to the inner side of the opening of the second connector to ensure the sealing of the second connector when it is connected to the inner threaded surface of the rigid pipe through the outer thread structure.

9. The stable connection structure with both hard and soft ends according to claim 3, characterized in that, The reinforcing ribs are radially distributed from the screw holes, and their thickness gradually decreases from the screw holes towards the edge of the main body to enhance the structural strength of the main body at the grounding bolt.

10. The stable connection structure with both soft and hard ends according to claim 1 or 6, characterized in that, The inner wall of the pipe clamp is provided with spiral raised anti-slip texture to increase the friction between the pipe clamp and the outer wall of the hose.

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