Rubber and plastic hose large flow integrated molding connection joint

Abstract

This utility model discloses a high-flow-rate integrated molded connector for rubber and plastic hoses, relating to the technical field of hoses. The connector includes a hose with a clamp integrally molded on the outer wall of its end. A nut is threaded onto the outside of the clamp, with the hose end located inside the nut. The hose forms an axial flow channel, and the flow area within the channel is equal to the hose's internal cross-sectional area. This utility model is a high-flow-rate integrated molded connector for rubber and plastic hoses. It eliminates the traditional insert and clamp used in hose installation. Instead, the positioning pin, cap, clamp, and hose are integrally molded in a mold using an injection molding machine. This new connector is integrally molded, simple, efficient, and safe, with a near-zero risk of detachment or leakage. It solves the problem of hose size limitations and allows for smoother internal flow, significantly increasing the effective flow area of ​​the hose. It is simple and practical.

Description

Technical Field

[0001] This utility model specifically refers to a high-flow-rate integrated molded connection joint for rubber and plastic hoses. Background Technology

[0002] Connecting joints serve to seal and conduct electricity in bathroom fixtures piping, pneumatic industries, and in the connection of rubber and pneumatic hoses for dust blowers, tire inflators, pneumatic tools, pneumatic components, and forest sprinkler irrigation systems.

[0003] Existing connectors have the following drawbacks: Current plastic pipe connectors use a core-insertion clamp connection. This method involves inserting a core into the flexible hose and then using clamps to lock and seal the hose from the outside – a mechanical design. Because this design requires inserting a core into the hose, the inner diameter of the core ultimately determines the flow area of ​​the entire pipe, thus significantly reducing the effective flow rate within the flexible hose. Utility Model Content

[0004] The purpose of this invention is to provide a high-flow-rate integrated molded connector for rubber and plastic hoses to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a high-flow-rate integrated molded connector for rubber and plastic hoses, comprising:

[0006] The hose has a clamp integrally formed on the outer wall of its end;

[0007] The nut is threaded onto the outside of the clamp, and the end of the hose is located inside the nut. The hose forms a flow channel axially, and the flow area in the flow channel is equal to the cross-sectional area inside the hose.

[0008] In a further embodiment, the end of the hose is integrally formed with a large cap, the end of the large cap extends into a narrowing extension end, and the end of the narrowing extension end is radially provided with a positioning bolt.

[0009] In a further embodiment, the nut is provided with a sealing gasket, and the upper end of the inner sidewall of the sealing gasket is provided with an annular enlarged end, the inner sidewall of the annular enlarged end being in close contact with the radial outer wall of the positioning bolt;

[0010] The portion of the sealing gasket located below the annular enlarged end is looped around the outer wall of the reduced extension end located between the cap and the positioning bolt;

[0011] The bottom wall of the sealing gasket is in close contact with the upper surface of the cap.

[0012] In a further embodiment, the nut is an internal thread nut or an external hexagonal internal thread nut.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model is a high-flow-rate one-piece molded connector for rubber and plastic hoses. It eliminates the traditional insert and clamp positioning post of the hose. Instead, the positioning pin, cap, clamp, and hose are integrally melted and molded in a mold using an injection molding machine. The new connector is integrally molded, which is simple, efficient, and safe. The risk of detachment and leakage is close to zero. It solves the problem of hose size limitations and makes the hose internal flow more unobstructed, which can greatly increase the effective flow area of ​​the hose. It is simple and practical. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the main structure of an embodiment of this utility model;

[0016] Figure 2 This is a cross-sectional view of the hose structure according to an embodiment of the present utility model.

[0017] In the diagram: 1. Nut; 2. Sealing gasket; 3. Hose; 31. Clamp; 32. Flow channel; 33. Positioning bolt; 34. Cap. Detailed Implementation

[0018] 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.

[0019] Example 1: This example provides a three-in-one molded connector for high-flow rubber and plastic hoses, such as... Figure 1 As shown, the device includes a flexible hose 3 and a nut 1. A clamp 31 is integrally formed on the outer wall of the end of the flexible hose 3. The nut 1 is threaded onto the outside of the clamp 31. The nut 1 is either an internal thread nut or an external hexagonal internal thread nut. The end of the flexible hose 3 is located inside the nut 1. Figure 2 As shown, the end of the hose 3 is integrally formed with a large cap 34, the end of the large cap 34 extends into a narrow extension end, and the end of the narrow extension end is provided with a positioning bolt 33 in the radial direction.

[0020] The flexible tube 3 forms a flow channel 32 axially, and the flow area within the flow channel 32 is equal to the cross-sectional area of ​​the flexible tube 3. The inner diameter of the flexible tube 3 remains unchanged, and there are no obstructions within the flexible tube 3, achieving 100% effective flow area.

[0021] In this embodiment, the insert and clamp positioning post of the traditional tube core insertion into the hose 3 are removed. Then, the four parts—positioning bolt 33, cap 34, clamp 31, and hose 3—are integrally melt-molded in a mold using an injection molding machine. This integral injection molding method ensures that the bonding strength of the injection-molded parts exceeds the tensile breaking strength of the hose 3, thus eliminating the risk of hose 3 detachment and leakage. By abandoning the traditional method of inserting the insert into the hose 3, the interior of the hose 3 becomes unobstructed, thereby significantly increasing the effective flow area of ​​the hose 3.

[0022] In addition, to enhance the sealing performance, a sealing gasket 2 is provided inside the nut 1. The upper end of the inner wall of the sealing gasket 2 is provided with an annular enlarged end, and the inner wall of the annular enlarged end is in close contact with the radial outer wall of the positioning bolt 33. At the same time, the part of the sealing gasket 2 located below the annular enlarged end is wrapped around the outer wall of the reduced extension end located between the large cap 34 and the positioning bolt 33. Meanwhile, the bottom wall of the sealing gasket 2 is in close contact with the upper surface of the large cap 34.

[0023] The actual problem that this embodiment aims to solve is:

[0024] 1. The connector designed by the applicant completely solves the problem of the effective flow area of ​​the pipeline being severely reduced due to the insertion of the inner core. Taking the most widely used 8mm outer diameter and 6mm inner diameter flexible hose 3 as an example, the actual flow area of ​​the flexible hose 3 is only a small part of the designed area of ​​the flexible hose 3; in contrast, the connector designed by the applicant ensures 100% effective flow area of ​​the entire flexible hose 3, greatly increasing the flow volume, effectively improving the flow efficiency, increasing the spraying (injection) pressure, and effectively reducing the energy consumption of transportation.

[0025] 2. In existing joints, fluctuations in the dimensions or quality of any of the three components—the core, clamp 31, and hose 3—can cause the hose 3 to detach and leak, leading to losses and potential hazards. The applicant's designed connector uses a one-piece injection molding process to enhance the overall strength of the hose 3. Even if the hose 3 breaks under external force, the connector will not detach or break, ensuring not only operational stability and durability but also effectively eliminating safety hazards.

[0026] 3. The applicant's designed connector solves the size limitation problem. Existing connectors cannot insert the tube core when the tube diameter is <6 mm, and even if inserted, the flow area is extremely small; when the tube diameter is >30 mm, the support strength of the tube core decreases rapidly, thus easily causing the plastic tube to detach and leak. The applicant's designed connector, however, can overcome size limitations, ensuring 100% flow rate regardless of the thickness of the flexible tube, while being extremely stable and reliable.

[0027] 4. Existing joints have too many sealing interfaces, including hose 3 and the core, clamp 31 and the core, and the core and the fitting, totaling three sealing surfaces. This increases the probability of plastic tube detachment and leakage. The applicant's designed joint has only one sealing surface, greatly reducing the risk of leakage and effectively ensuring the stability of the connection.

[0028] 5. Existing connectors require additional production of clamps 31 and core tubes before installation onto hose 3, and require testing. The connector designed by the applicant adopts a one-piece molding method, which effectively reduces resource consumption and simplifies the production, installation and testing process. It is not only safe and efficient, but also effectively controls costs.

[0029] Example 2 differs from Example 1 in that, based on the core insertion clamp connection connector, the three parts of the core, clamp 31, and hose 3 connector are made into a hemispherical sealing structure. At this time, the core adopts a convex hemisphere, and the hose 3 and clamp 31 adopt a concave hemispherical structure. The connector of hose 3 is made into a concave hemispherical shape using a heating tool. At this time, the connector of hose 3 achieves the purpose of expanding the inner diameter.

[0030] The inner diameter of the tube core is the same as the inner diameter of the hose 3. The insertion part of the hose 3 is changed to a convex hemisphere that fits against the concave hemisphere of the hose 3 to facilitate the mating installation. The clamp 31 part is also made into a concave hemisphere that fits against the hemisphere of the hose 3 to facilitate the mating installation.

[0031] At this point, the core, clamp 31, and hose 3 are all tightly fastened together in a hemispherical shape to achieve 100% flow area, while the remaining part still uses the structure of tightening the nut 1.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Rubber and plastic hose (3) high flow integrated molded connection joint, characterized in that, include: The hose (3) has a clamp (31) integrally formed on the outer wall of its end. Nut (1), the nut (1) is threaded on the outside of clamp (31), and the end of hose (3) is located inside the nut (1). The hose (3) forms a flow channel (32) in the axial direction. The flow area inside the flow channel (32) is equal to the cross-sectional area inside the hose (3).

2. Rubber and plastic hose (3) high flow integrated profiled connection joint according to claim 1, characterized in that The end of the hose (3) is integrally formed with a large cap (34), the end of the large cap (34) extends into a narrow extension end, and the end of the narrow extension end is provided with a positioning bolt (33) in the radial direction.

3. Rubber and plastic hose (3) high flow integrated profiled connection joint according to claim 2, characterized in that, The nut (1) is provided with a sealing gasket (2), and the upper end of the inner sidewall of the sealing gasket (2) is provided with an annular enlarged end. The inner sidewall of the annular enlarged end is in close contact with the radial outer wall of the positioning bolt (33). The sealing gasket (2) is located on the lower side of the annular enlarged end and is looped around the outer wall of the reduced extension end located between the cap (34) and the positioning bolt (33); The bottom wall of the sealing gasket (2) is in close contact with the upper surface of the cap (34).

4. Rubber and plastic hose (3) high flow integrated profiled connection joint according to claim 1, characterized in that, The nut (1) is an internal thread nut or an external hexagonal internal thread nut.

Images