Multi-layer heat insulation metal hose connector
By designing a multi-layer insulated metal hose connector, and combining components such as PET film, aerogel filler, and aluminum film, the problem of insufficient insulation in metal hose connectors is solved, achieving heat insulation, stable anti-detachment, and waterproof functions, thereby improving the safety and stability of pipe connections.
Patent Information
- Application Number
- CN202423287568.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing metal flexible hose joints lack thermal insulation properties, posing a safety hazard.
A multi-layer insulated metal hose connector was designed, including a threaded connector, an iron sleeve, a rubber ring, a nut sleeve, and an insulation component. Insulation is achieved by using first and second PET films, aerogel fillers, aluminum film, and other components. Stability is enhanced by the structure of raised and grooved adhesive dots, and water-absorbing membranes and waterproof adhesive strips are used to prevent water vapor penetration.
It achieves thermal insulation, sturdiness, and waterproofing, ensuring the safety and stability of pipe connections.
Smart Images

Figure CN223648833U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline connector technology, specifically a multi-layer heat-insulating metal flexible hose connector. Background Technology
[0002] Pipe fitting technology is mainly used to connect flexible hoses and rigid pipes to ensure the stability and sealing of pipeline systems. Among them, metal flexible hose fittings are widely used in many fields, including industrial, construction and agricultural fields. In the industrial field, metal flexible hose fittings are often used in petrochemical, pharmaceutical, food processing and other industries. In order to ensure the safety and stability of the production process, it is necessary to consider the characteristics of corrosion resistance and high temperature resistance. At present, most fittings on the market do not have thermal insulation function, which poses many hidden dangers.
[0003] Now, a novel multi-layer insulated metal hose connector is proposed to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a multi-layer insulated metal flexible hose connector to solve the problem of insulated heat insulation mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer insulated metal hose connector, including a threaded connector, an iron sleeve disposed below the threaded connector, a rubber ring disposed below the iron sleeve, a nut sleeve disposed below the rubber ring, and an insulation component fixedly connected to the periphery of the threaded connector.
[0006] The insulation component includes a first PET film, which is fixedly connected to the periphery of the threaded joint. A second PET film is fixedly connected to the periphery of the nut sleeve. A screw head is fixedly connected to the bottom of the threaded joint. A first aerogel filler is fixedly connected to the inside of the threaded joint. A second aerogel filler is fixedly connected to the inside of the nut sleeve. A first aluminum film is fixedly connected to the periphery of the bottom of the iron sleeve. A second aluminum film is fixedly connected to the inner ring of the rubber ring.
[0007] Preferably, the thread shape on the outside of the screw head matches the thread shape inside the nut sleeve, the shape and size of the top periphery of the iron sleeve are consistent with the shape and size of the bottom end inside the threaded joint, and the iron sleeve can move up and down along the inside of the threaded joint.
[0008] Preferably, the shape and size of the top of the rubber ring are consistent with the shape and size of the bottom of the iron sleeve, and the rubber ring can move up and down along the outer periphery of the bottom of the iron sleeve.
[0009] Preferably, the shape and size of the top end of the nut sleeve are consistent with the shape and size of the bottom periphery of the threaded joint, and the threaded joint can be screwed up and down along the inside of the nut sleeve.
[0010] Preferably, a plurality of grooves are fixedly connected to the middle position of the iron sleeve, a first adhesive dot protrusion is fixedly connected to the inside of the groove, a plurality of raised strips are fixedly connected to the top of the outer periphery of the rubber ring, a second adhesive dot protrusion is fixedly connected to the front end of the raised strip, a plurality of raised rubber dots are fixedly connected to the outer periphery of the first aluminum film, and a plurality of concave and convex textures are formed at the front end of the raised rubber dots. The shape and size of the inside of the groove are consistent with the shape and size of the outside of the raised strip, and the raised strip can move up and down along the inside of the groove.
[0011] Preferably, a first absorbent membrane is fixedly connected between each pair of grooves, a second absorbent membrane is fixedly connected to the periphery of the rubber ring, a waterproof strip is fixedly connected to the periphery of the top of the screw head, a circular groove is opened at the top of the inside of the nut sleeve, a water-stop strip is fixedly connected to the rear end of the first absorbent membrane, the shape and size of the outside of the waterproof strip are consistent with the shape and size of the inside of the circular groove, and the waterproof strip can move up and down along the inside of the circular groove.
[0012] Compared with the prior art, the beneficial effects of this utility model are: the multi-layer heat-insulating metal hose connector not only achieves heat insulation function and stable anti-detachment function, but also achieves waterproof function;
[0013] (1) By setting up a rubber ring, a nut sleeve, a first aluminum film and a second aluminum film, when in use, first put the rubber ring and the nut sleeve on the outside of the metal pipe, then put the iron sleeve down into the metal pipe, and then insert the rubber ring up into the bottom of the iron sleeve to secure it. Then lift the nut sleeve up and screw the threaded joint down into the nut sleeve to complete the connection between the joint and the hose. Because the first aluminum film is tightly attached to the inner wall of the metal pipe, the heat of the medium inside the pipe is first isolated by the first aluminum film and the second aluminum film. During the heat transfer process, the first aerogel filler and the second aerogel filler are provided, which have excellent heat insulation performance, so that the heat remains stable after the joint is connected to the pipe. At the same time, the presence of the first PET film and the second PET film also ensures that the external environment will not damage the internal heat insulation structure. The heat insulation function is achieved through three layers of protection.
[0014] (2) By setting grooves, first adhesive dot protrusions, protruding strips and second adhesive dot protrusions, in order to prevent the pipe and the joint from falling off during use, protruding rubber is set at the bottom of the iron sleeve. When the iron sleeve is connected to the inside of the pipe, the friction between the iron sleeve and the inner wall of the pipe is enhanced by the protruding rubber and the concave and convex textures at the top of the protruding rubber, so that the iron sleeve will not easily fall off the pipe. At the same time, when the rubber ring is inserted into the iron sleeve upward, the grooves and protruding strips make the upward insertion process convenient and quick, while also ensuring the stability of the connection. At the same time, the presence of the first adhesive dot protrusion and the second adhesive dot protrusion enhances the friction between the grooves and the protruding strips, preventing them from easily falling off, thus achieving a stable and anti-detachment function.
[0015] (3) By setting up a first absorbent membrane, a second absorbent membrane, a waterproof strip and a circular groove, when in use, if there is water vapor inside the pipe or the external environment is humid, the water vapor will first be absorbed by the first absorbent membrane and the second absorbent membrane. If there is too much water vapor inside, it will be absorbed by the water-stop strip when it overflows. The water-stop strip expands after absorbing water, which also prevents water vapor from flowing out. At the same time, because the waterproof strip is tightly attached to the circular groove downwards, external water vapor will not penetrate into the joint through the interface, thus achieving the waterproof function. Attached Figure Description
[0016] Figure 1 This is a frontal cross-sectional view of the present invention.
[0017] Figure 2 This is a magnified front view of the cross-sectional structure of the rubber ring of this utility model;
[0018] Figure 3 This is an enlarged structural diagram of the iron sleeve and rubber ring in the combined state of this utility model;
[0019] Figure 4 This is an enlarged front cross-sectional view of the nut sleeve of this utility model;
[0020] Figure 5 This is an enlarged front view cross-sectional schematic diagram of the iron sleeve of this utility model.
[0021] In the diagram: 1. Threaded connector; 2. Iron sleeve; 3. Rubber ring; 4. Nut sleeve; 5. First PET film; 6. Second PET film; 7. Screw head; 8. First aerogel filler; 9. Second aerogel filler; 10. First aluminum film; 11. Second aluminum film; 12. Groove; 13. First adhesive dot protrusion; 14. Raised strip; 15. Second adhesive dot protrusion; 16. Raised rubber; 17. Embossed texture; 18. First absorbent membrane; 19. Second absorbent membrane; 20. Waterproof strip; 21. Circular groove; 22. Waterstop strip. 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] Example 1: Please refer to Figure 1-5 A multi-layer insulated metal hose connector includes a threaded connector 1, an iron sleeve 2 below the threaded connector 1, a rubber ring 3 below the iron sleeve 2, a nut sleeve 4 below the rubber ring 3, and an insulation component fixedly connected to the periphery of the threaded connector 1.
[0024] Please see Figure 1-5 A multi-layer insulated metal hose connector also includes an insulation component, which includes a first PET film 5, which is fixedly connected to the periphery of the threaded connector 1. A second PET film 6 is fixedly connected to the periphery of the nut sleeve 4. A screw head 7 is fixedly connected to the bottom of the threaded connector 1. A first aerogel filler 8 is fixedly connected to the inside of the threaded connector 1. A second aerogel filler 9 is fixedly connected to the inside of the nut sleeve 4. A first aluminum film 10 is fixedly connected to the periphery of the bottom of the iron sleeve 2. A second aluminum film 11 is fixedly connected to the inner ring of the rubber ring 3. The thread shape of the screw head 7 on the outside matches the thread shape of the nut sleeve 4 on the inside. The shape and size of the top periphery of the iron sleeve 2 are consistent with the shape and size of the bottom end of the threaded connector 1. The iron sleeve 2 can move up and down along the inside of the threaded connector 1. The shape and size of the top of the rubber ring 3 are consistent with the shape and size of the bottom of the iron sleeve 2. The rubber ring 3 can move up and down along the periphery of the bottom of the iron sleeve 2. The shape and size of the top of the nut sleeve 4 are consistent with the shape and size of the periphery of the bottom end of the threaded connector 1. The threaded connector 1 can be screwed up and down along the inside of the nut sleeve 4. Three layers of protection and heat insulation are provided.
[0025] Specifically, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in use, first put the rubber ring 3 and nut sleeve 4 onto the outside of the metal tube, then put the iron sleeve 2 down into the metal tube, and then insert the rubber ring 3 upward into the bottom of the iron sleeve 2 to secure it. Then lift the nut sleeve 4 upward and screw the threaded connector 1 down into the nut sleeve 4 to complete the connection between the connector and the hose. Because the first aluminum film 10 is tightly attached to the inner wall of the metal tube, the heat of the medium inside the tube is first isolated by the first aluminum film 10 and the second aluminum film 11. During the heat transfer to the outside, due to the presence of the first aerogel filler 8 and the second aerogel filler 9, the heat insulation performance is excellent, so that the heat remains stable after the connector is connected to the pipe. At the same time, the presence of the first PET film 5 and the second PET film 6 also ensures that the external environment will not damage the internal heat insulation structure. Through three layers of protection, heat insulation is achieved.
[0026] Example 2: Multiple sets of grooves 12 are fixedly connected to the middle position of the iron sleeve 2. A first adhesive dot protrusion 13 is fixedly connected inside the groove 12. Multiple sets of protruding strips 14 are fixedly connected to the top of the outer periphery of the rubber ring 3. A second adhesive dot protrusion 15 is fixedly connected to the front end of the protruding strip 14. Multiple sets of convex rubber 16 are fixedly connected to the outer periphery of the first aluminum film 10. Multiple sets of concave and convex textures 17 are opened at the front end of the convex rubber 16. The shape and size inside the groove 12 are consistent with the shape and size outside the protruding strip 14. The protruding strip 14 can move up and down along the inside of the groove 12 to prevent the joint and pipe from falling off.
[0027] Specifically, such as Figure 1 and Figure 3 As shown, during use, to prevent the pipe from falling off the connector, a raised rubber dot 16 is provided at the bottom of the iron sleeve 2. When the iron sleeve 2 is connected to the inside of the pipe, the raised rubber dot 16 and the concave and convex texture 17 at the top of the raised rubber dot 16 enhance the friction between the iron sleeve 2 and the inner wall of the pipe, so that the iron sleeve 2 will not easily fall off the pipe. At the same time, when the rubber ring 3 is inserted upward into the iron sleeve 2, the groove 12 and the raised strip 14 are provided, which makes the upward insertion process convenient and quick, while also ensuring the stability of the connection. At the same time, due to the presence of the first rubber dot protrusion 13 and the second rubber dot protrusion 15, the friction between the groove 12 and the raised strip 14 is enhanced, preventing easy detachment and strengthening stability.
[0028] Example 3: A first absorbent membrane 18 is fixedly connected between each pair of grooves 12, a second absorbent membrane 19 is fixedly connected to the outer periphery of the rubber ring 3, a waterproof rubber strip 20 is fixedly connected to the outer periphery of the top of the screw head 7, a circular groove 21 is opened at the top of the inside of the nut sleeve 4, a water-stop strip 22 is fixedly connected to the rear end of the first absorbent membrane 18, the shape and size of the outside of the waterproof rubber strip 20 are consistent with the shape and size of the inside of the circular groove 21, the waterproof rubber strip 20 can move up and down along the inside of the circular groove 21, absorb water and waterproof, and prevent the inside and outside from being corroded by water vapor;
[0029] Specifically, such as Figure 1 and Figure 5 As shown, during use, if moisture appears inside the pipe or the external environment is humid, the moisture is first absorbed by the first absorbent membrane 18 and the second absorbent membrane 19. If there is too much moisture inside, it will be absorbed by the water-stop strip 22 when it overflows. The water-stop strip 22 expands after absorbing water, which also prevents the moisture from flowing out. At the same time, because the waterproof strip 20 is tightly attached to the circular groove 21 downwards, external moisture will not penetrate into the joint through the interface, preventing moisture from corroding the pipe and the joint.
[0030] Working Principle: In use, firstly, the rubber ring 3 and nut sleeve 4 are fitted onto the outside of the metal pipe. Then, the iron sleeve 2 is placed downwards into the metal pipe. Next, the rubber ring 3 is inserted upwards into the bottom of the iron sleeve 2 for a secure connection. Then, the nut sleeve 4 is lifted upwards, and the threaded connector 1 is screwed downwards into the nut sleeve 4, thus completing the connection between the connector and the hose. Because the first aluminum film 10 is tightly fitted to the inner wall of the metal pipe, the heat of the medium inside the pipe is first insulated by the first aluminum film 10 and the second aluminum film 11. During the heat transfer process, the first aerogel filler 8 and the second aerogel filler 9 provide excellent heat insulation performance, ensuring stable heat after the connector is connected to the pipe. Simultaneously, the presence of the first PET film 5 and the second PET film 6 ensures that the external environment will not damage the internal insulation structure. This provides three layers of protection and heat insulation. To prevent the pipe from detaching from the connector during use, raised rubber dots 16 are provided at the bottom of the iron sleeve 2. When the iron sleeve 2 is connected to the inside of the pipe, the friction between the iron sleeve 2 and the inner wall of the pipe is enhanced by the raised rubber 16 and the concave and convex texture 17 at the top of the raised rubber 16, so that the iron sleeve 2 will not easily fall off the pipe. At the same time, when the rubber ring 3 is inserted upward into the iron sleeve 2, the groove 12 and the raised strip 14 are provided, which makes the upward insertion process convenient and quick, and also ensures the stability of the connection. At the same time, due to the presence of the first rubber dot protrusion 13 and the second rubber dot protrusion 15, the friction between the groove 12 and the raised strip 14 is enhanced, and it will not easily fall off. During use, if there is water vapor inside the pipe or the external environment is humid, the water vapor is first absorbed by the first water-absorbing membrane 18 and the second water-absorbing membrane 19. If there is too much water vapor inside, it will be absorbed by the water-stop strip 22 when it overflows. The water-stop strip 22 expands after absorbing water, which also prevents water vapor from flowing out. At the same time, because the waterproof rubber strip 20 is tightly attached to the round groove 21 downward, external water vapor will not penetrate into the joint through the interface.
[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A multi-layer insulated metal flexible hose connector, comprising a threaded connector (1), characterized in that: A metal sleeve (2) is provided below the threaded joint (1), a rubber ring (3) is provided below the metal sleeve (2), a nut sleeve (4) is provided below the rubber ring (3), and a heat insulation component is fixedly connected to the periphery of the threaded joint (1). The heat insulation component includes a first PET film (5), which is fixedly connected to the periphery of the threaded joint (1). A second PET film (6) is fixedly connected to the periphery of the nut sleeve (4). A screw head (7) is fixedly connected to the bottom of the threaded joint (1). A first aerogel filler (8) is fixedly connected to the inside of the threaded joint (1). A second aerogel filler (9) is fixedly connected to the inside of the nut sleeve (4). A first aluminum film (10) is fixedly connected to the periphery of the bottom of the iron sleeve (2). A second aluminum film (11) is fixedly connected to the inner ring of the rubber ring (3).
2. The multi-layer insulated metal flexible hose connector according to claim 1, characterized in that: The thread shape on the outside of the screw head (7) matches the thread shape inside the nut sleeve (4). The shape and size of the top periphery of the iron sleeve (2) are consistent with the shape and size of the bottom inside the threaded joint (1). The iron sleeve (2) can move up and down along the inside of the threaded joint (1).
3. The multi-layer insulated metal flexible hose connector according to claim 1, characterized in that: The shape and size of the top of the rubber ring (3) are consistent with the shape and size of the bottom of the iron sleeve (2), and the rubber ring (3) can move up and down along the outer periphery of the bottom of the iron sleeve (2).
4. The multi-layer insulated metal flexible hose connector according to claim 1, characterized in that: The shape and size of the top of the nut sleeve (4) are consistent with the shape and size of the bottom periphery of the threaded connector (1), and the threaded connector (1) can be screwed up and down along the inside of the nut sleeve (4).
5. A multi-layer insulated metal flexible hose connector according to claim 1, characterized in that: The iron sleeve (2) has multiple sets of grooves (12) fixedly connected in the middle position. The first adhesive dot protrusion (13) is fixedly connected inside the groove (12). The top of the outer periphery of the rubber ring (3) has multiple sets of protruding strips (14). The front end of the protruding strip (14) has a second adhesive dot protrusion (15). The outer periphery of the first aluminum film (10) has multiple sets of convex rubber (16). The front end of the convex rubber (16) has multiple sets of concave and convex textures (17). The shape and size inside the groove (12) are consistent with the shape and size outside the protruding strip (14). The protruding strip (14) can move up and down along the inside of the groove (12).
6. A multi-layer insulated metal flexible hose connector according to claim 5, characterized in that: The grooves (12) are fixedly connected to each other with a first absorbent membrane (18), the outer periphery of the rubber ring (3) is fixedly connected with a second absorbent membrane (19), the outer periphery of the top of the screw head (7) is fixedly connected with a waterproof strip (20), the top of the nut sleeve (4) is provided with a circular groove (21), the rear end of the first absorbent membrane (18) is fixedly connected with a water-stop strip (22), the shape and size of the waterproof strip (20) on the outside are consistent with the shape and size of the circular groove (21), and the waterproof strip (20) can move up and down along the inside of the circular groove (21).