Rubber tube assembly with composite multi-layer structure

Abstract

The utility model relates to the technical field of rubber pipes, and provides a rubber pipe assembly with a composite multi-layer structure, which comprises a rubber pipe body, connecting pieces are movably connected to two sides of the rubber pipe body, connecting pipelines are fixedly embedded in the two connecting pieces, and the connecting pipelines are connected with the rubber pipe body. The rubber pipe comprises a rubber pipe body and two connecting pieces, the rubber pipe body is provided with two connecting pipelines, the outer surfaces of the opposite sides of the two connecting pipelines are both movably embedded in the rubber pipe body, and the inner sides of the two connecting pieces are both fixedly provided with first sealing gaskets. According to the rubber pipe assembly, a user only needs to replace the rubber pipe body or the connecting piece without replacing the whole rubber pipe assembly, cost is saved, personnel can conveniently maintain and replace the rubber pipe assembly, meanwhile, due to the design of the first sealing gasket and the second sealing gasket, it is ensured that in the connecting process of the rubber pipe body, good sealing can be formed, the risk of liquid leakage is reduced, and the reliability of a system is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber hoses, in particular to a rubber hose assembly with a composite multi-layer structure. Background Art

[0002] The hose assembly with a composite multi-layer structure is a high-performance hose that is widely used in industrial fields that need to transmit various fluids (such as liquids, gases, chemicals, etc.).

[0003] However, in the design of existing hoses, the connector and the hose body are usually fixedly installed. Although this design provides a stable connection in the initial stage, it brings many problems in actual use. When the hose or connector is damaged due to wear, aging or other factors during operation, the user is often faced with the situation of having to replace the entire hose assembly. This not only increases maintenance costs but also leads to a waste of resources because although the other parts of the hose may still be in good condition, the entire assembly is forced to be scrapped due to the damage to the connector. Utility Model Content

[0004] The purpose of the present invention is to solve the problem that in the prior art, the connector and the hose body are usually fixedly installed. Although this design provides a stable connection in the early stage, in actual use, when the hose or connector is damaged by wear, aging or other factors during operation, the user is often faced with the situation of having to replace the entire hose assembly.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a composite multi-layer structure hose assembly, comprising a hose body, both sides of the hose body are movably connected with connecting parts, the interiors of the two connecting parts are fixedly embedded with connecting pipes, the outer surfaces of the two opposite sides of the connecting pipes are movably embedded in the interior of the hose body, the inner sides of the two connecting parts are fixedly installed with a first sealing gasket, the inner sides of the two connecting parts are movably embedded with movable rods on both sides of the interiors of the two connecting parts, the outer sides of the four movable rods are fixedly installed with reset springs, the four reset springs are divided into two groups of two, the other ends of the two groups of reset springs are fixedly installed on the outer surface of the connecting part, the opposite sides of the two movable rods are fixedly installed with a fixing plate, wherein the inner sides of the two fixing plates are provided with threaded holes, and the interiors of the two connecting parts are fixedly embedded with a second sealing gasket.

[0006] As a preferred embodiment, bolts are threadedly connected on both sides of the interior of the other two fixing plates, and screws are threadedly connected on both sides of the interior of the two connecting members.

[0007] The technical effect of adopting the above further solution is that the bolt can be embedded into the threaded hole.

[0008] As a preferred embodiment, the four bolts are matched with the threaded holes, and crank handles are fixedly mounted on the outer sides of the four screw rods.

[0009] The technical effect of adopting the above further solution is that the screw can be driven to rotate by the crank.

[0010] As a preferred embodiment, one side of each of the four screw rods that is opposite to the other is movably connected to a clamping plate, and two positioning columns are fixedly mounted on the outer sides of each of the four clamping plates.

[0011] The technical effect of adopting the above further solution is that the splint can be driven to move by the screw.

[0012] As a preferred embodiment, the eight positioning posts are divided into two groups of four, the outer surfaces of the two groups of positioning posts are movably embedded in the interior of the connecting piece, and an inner layer is provided inside the hose body.

[0013] The technical effect of adopting the above further solution is that the positioning column can slide inside the connecting piece.

[0014] As a preferred embodiment, the inner wall of the inner layer is provided with a corrosion-resistant layer, and rubber pads are fixedly installed on opposite sides of the four clamping plates.

[0015] The technical effect of adopting the above further solution is: the inner wall of the polyurethane inner layer can be first coated with epoxy resin as a corrosion-resistant layer, and epoxy resin has good corrosion resistance. As a corrosion-resistant layer, it can prevent the inner layer from being corroded.

[0016] As a preferred embodiment, a reinforcement layer is provided on the outer surface of the inner layer, and a barrier layer is provided on the outer surface of the reinforcement layer.

[0017] The technical effect of adopting the above further solution is that the metal wire braid can be set on the outer surface of the inner layer to form a reinforcement layer to improve the pressure resistance of the hose and prevent the hose from expanding or deforming under high pressure environment.

[0018] As a preferred embodiment, an outer layer is provided on the outer surface of the barrier layer, and a fireproof layer is provided on the outer surface of the outer layer.

[0019] The technical effect of adopting the above further solution is: flame-retardant polyethylene can be sprayed on the outer surface of the thermoplastic polyurethane outer layer to form a fireproof layer, which can improve the fireproof performance of the hose, delay the spread of flames, and protect the safety of the hose in a fire.

[0020] Compared with the prior art, the advantages and positive effects of the present invention are:

[0021] 1. During use, the present invention, through the arrangement of the connector and the splint structure, not only does it allow the user to replace only the hose body or the connector when the hose body or the connector is damaged, but does not need to replace the entire hose assembly, thus saving costs and facilitating maintenance and replacement. At the same time, the design of the first sealing gasket and the second sealing gasket ensures that the hose body can form a good seal during the connection process, reduces the risk of leakage, improves the reliability of the system, and solves the problem of the conventional method of fixed installation of the connector and the hose body. Although this design provides a stable connection in the initial stage, in actual use, when the hose or the connector is damaged due to wear, aging or other factors during operation, the user often faces the problem of having to replace the entire hose assembly.

[0022] 2. In the present invention, when in use, the epoxy resin has good corrosion resistance. As a corrosion-resistant layer, it can prevent the inner layer from being corroded and protect the inner layer from being eroded by the transmission medium. The polyurethane inner layer itself has good chemical resistance. Combined with the epoxy resin coating, the corrosion resistance is further improved. At the same time, the metal wire braid is arranged on the outer surface of the inner layer to form a reinforcement layer, which can significantly improve the pressure resistance of the hose and prevent the hose from expanding or deforming under high-pressure conditions. Polyethylene terephthalate is used as a barrier layer to effectively prevent the transmission medium from penetrating into the reinforcement layer, protect the reinforcement layer from being eroded, and improve the barrier performance of the hose. Thermoplastic polyurethane is used as the outer layer with good wear resistance and weather resistance, which can protect the hose from damage from the external environment during use and improve the wear resistance and aging resistance of the hose. Flame-retardant polyethylene is sprayed on the outer surface of the thermoplastic polyurethane outer layer to form a fireproof layer, which can improve the fireproof performance of the hose, delay the spread of flames, and protect the safety of the hose in fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a rear perspective structural diagram of a composite multi-layer hose assembly provided by the present invention;

[0024] Figure 2 A schematic diagram of a cross-sectional three-dimensional structure of a hose body of a hose assembly with a composite multi-layer structure provided by the present invention;

[0025] Figure 3 A schematic diagram of the cross-sectional three-dimensional structure of a connector of a composite multi-layer hose assembly provided by the present invention Figure 1 ;

[0026] Figure 4 A schematic diagram of the cross-sectional three-dimensional structure of a connector of a composite multi-layer hose assembly provided by the present invention Figure 2 ;

[0027] Figure 5 The present invention provides a schematic diagram of the cross-sectional structure of a hose body of a hose assembly with a composite multi-layer structure.

[0028] Legend:

[0029] 1. Hose body; 101. Connecting piece; 102. Connecting pipe; 103. First sealing gasket; 104. Movable rod; 105. Return spring; 106. Fixing plate; 107. Threaded hole; 108. Bolt; 109. Screw; 110. Crank handle; 111. Clamp; 112. Positioning column; 113. Rubber pad; 114. Second sealing gasket; 2. Corrosion-resistant layer; 201. Inner layer; 202. Reinforcement layer; 203. Barrier layer; 204. Outer layer; 205. Fireproof layer. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Example 1, please refer to Figures 1 to 5 The utility model provides a technical solution: a hose assembly with a composite multi-layer structure, including a hose body 1, both sides of the hose body 1 are movably connected with connecting pieces 101, the interiors of the two connecting pieces 101 are fixedly embedded with connecting pipes 102, the outer surfaces of the opposite sides of the two connecting pipes 102 are movably embedded in the interior of the hose body 1, the inner sides of the two connecting pieces 101 are fixedly installed with a first sealing gasket 103, the inner sides of the two connecting pieces 101 are movably embedded with movable rods 104, the outer sides of the four movable rods 104 are fixedly installed with return springs 105, the four return springs 105 are divided into two groups of two, and the other ends of the two groups of return springs 105 are fixedly installed on the connecting On the outer surface of component 101, a fixing plate 106 is fixedly installed on the opposite side of the two movable rods 104, wherein threaded holes 107 are opened on both sides of the interior of the two fixing plates 106, and a second sealing gasket 114 is fixedly embedded in the interior of the two connecting components 101, wherein the inner sides of the other two fixing plates 106 are threadedly connected with bolts 108, and the inner sides of the two connecting components 101 are threadedly connected with screws 109, the four bolts 108 are matched with the threaded holes 107, and the outer sides of the four screws 109 are fixedly installed with a crank 110, and the opposite sides of the four screws 109 are movably connected with a splint 111, and the outer sides of the four splints 111 are fixedly installed with two positioning columns 112.

[0032] In this embodiment, the personnel can first pick up the connecting piece 101, place it on the right side of the hose body 1, and push the connecting piece 101 so that one end of the connecting pipe 102 is embedded in the interior of the hose body 1, and at the same time make the hose body 1 press against the first sealing gasket 103, and then press the movable rod 104 to drive the fixing plate 106 to slide inward, and squeeze the return spring 105 through the movable rod 104 to make it shrink. When the fixing plate 106 slides to a certain extent, the inner surface of the fixing plate 106 will fit the outer surface of the hose body 1, and the inner sides of the two fixing plates 106 will fit together. Then the personnel rotates the bolt 108 to embed it into the inside of the threaded hole 107, and then fix the connecting piece 101 to the inside of the hose body 1. When the hose body 1 needs to be laid, the personnel can pick up another hose body 1, push it into the interior of the connecting piece 101, and sleeve it onto the outer surface of the other end of the connecting pipe 102 At the same time, the other hose body 1 can fit the outer side of the second sealing gasket 114, and then the personnel rotates the crank 110 to drive the screw 109 to rotate, so that when it rotates, it can push the splint 111 to slide inward and pull the positioning column 112 through the splint 111 to slide. When the splint 111 slides to a certain extent, it will drive the rubber pad 113 to fit the outer surface of the other hose body 1 and fix it. Moreover, through the arrangement of the connecting piece 101 and the splint 111 structure, not only can the hose body 1 or the connecting piece 101 be damaged, the user only needs to replace the hose body 1 or the connecting piece 101 without replacing the entire hose assembly, which saves costs and is convenient for personnel to maintain and replace. At the same time, the design of the first sealing gasket 103 and the second sealing gasket 114 ensures that the hose body 1 can form a good seal during the connection process, reduces the risk of leakage, and improves the reliability of the system.

[0033] Example 2, as Figures 1 to 5 As shown, eight positioning columns 112 are divided into two groups of four, and the outer surfaces of the two groups of positioning columns 112 are movably embedded in the interior of the connector 101. The interior of the hose body 1 is provided with an inner layer 201, and the inner wall of the inner layer 201 is provided with a corrosion-resistant layer 2. Rubber pads 113 are fixedly installed on the opposite sides of the four splints 111, and the outer surface of the inner layer 201 is provided with a reinforcement layer 202, and the outer surface of the reinforcement layer 202 is provided with a barrier layer 203, and the outer surface of the barrier layer 203 is provided with an outer layer 204, and the outer surface of the outer layer 204 is provided with a fireproof layer 205.

[0034] In this embodiment, personnel can first coat epoxy resin on the inner wall of the polyurethane inner layer 201 as the corrosion-resistant layer 2, and then braid the metal wire onto the outer surface of the inner layer 201 to form a reinforcement layer 202. Then, polyethylene terephthalate is arranged on the outer surface of the reinforcement layer 202 to form a barrier layer 203, and polyethylene terephthalate is arranged on the outer surface of the barrier layer 203 to form an outer layer 204. After the outer layer 204 is set, personnel can spray flame-retardant polyethylene on the outer layer 204 to form a fireproof layer 205, thereby completing the production of the hose body 1. Epoxy resin has good corrosion resistance. As the corrosion-resistant layer 2, it can prevent the inner layer 201 from being corroded and protect the inner layer 201 from being eroded by the transmission medium. The polyurethane inner layer 201 itself has good chemical resistance. Performance, combined with epoxy resin coating, further improves corrosion resistance, and at the same time, the metal wire braid is set on the outer surface of the inner layer 201 to form a reinforcement layer 202, which can significantly improve the pressure resistance of the hose and prevent the hose from expanding or deforming under high pressure environment. Polyethylene terephthalate is used as a barrier layer 203, which can effectively prevent the transmission medium from penetrating into the reinforcement layer 202, protect the reinforcement layer 202 from corrosion, and improve the barrier performance of the hose. Thermoplastic polyurethane is used as the outer layer 204, which has good wear resistance and weather resistance, and can protect the hose from damage from the external environment during use, thereby improving the wear resistance and aging resistance of the hose. Flame-retardant polyethylene is sprayed on the outer surface of the thermoplastic polyurethane outer layer 204 to form a fireproof layer 205, which can improve the fire resistance of the hose, delay the spread of flames, and protect the safety of the hose in a fire.

[0035] Working principle: When in use, the personnel can first pick up the connecting piece 101, place it on the right side of the hose body 1, and push the connecting piece 101 so that one end of the connecting pipe 102 is embedded in the inside of the hose body 1, and at the same time make the hose body 1 press against the first sealing gasket 103, and then press the movable rod 104 to drive the fixing plate 106 to slide inward, and squeeze the return spring 105 through the movable rod 104 to make it shrink. When the fixing plate 106 slides to a certain extent, the inner surface of the fixing plate 106 will fit the outer surface of the hose body 1, and the inner sides of the two fixing plates 106 will fit together. Then the personnel rotates the bolt 108 to embed it into the inside of the threaded hole 107, and then fix the connecting piece 101 to the inside of the hose body 1. When the hose body 1 needs to be laid, the personnel can pick up another hose body 1, push it into the inside of the connecting piece 101, and sleeve it onto the outer surface of the other end of the connecting pipe 102 When the clamping plate 111 slides to a certain extent, it will drive the rubber pad 113 to fit the outer surface of the other hose body 1 and fix it. Moreover, through the arrangement of the connecting piece 101 and the clamping plate 111 structure, not only can the user only need to replace the hose body 1 or the connecting piece 101 when it is damaged, but there is no need to replace the entire hose assembly, which saves costs and is convenient for personnel to perform maintenance and replacement. At the same time, the design of the first sealing gasket 103 and the second sealing gasket 114 ensures that the hose body 1 can form a good seal during the connection process, reduces the risk of leakage, and improves the reliability of the system.During use, personnel can first apply epoxy resin to the inner wall of the polyurethane inner layer 201 as the corrosion-resistant layer 2, and then set the metal wire braid on the outer surface of the inner layer 201 to form a reinforcement layer 202. Then, polyethylene terephthalate is set on the outer surface of the reinforcement layer 202 to form a barrier layer 203, and polyethylene terephthalate is set on the outer surface of the barrier layer 203 to form an outer layer 204. After the outer layer 204 is set, personnel can spray flame-retardant polyethylene on the outer layer 204 to form a fireproof layer 205, thereby completing the production of the hose body 1. Epoxy resin has good corrosion resistance. As the corrosion-resistant layer 2, it can prevent the inner layer 201 from being corroded and protect the inner layer 201 from being eroded by the transmission medium. The polyurethane inner layer 201 itself has good chemical resistance. The inner layer 201 is provided with a metal wire braid to form a reinforcement layer 202, which can significantly improve the pressure resistance of the hose and prevent the hose from expanding or deforming under high pressure. Polyethylene terephthalate is used as a barrier layer 203 to effectively prevent the transmission medium from penetrating into the reinforcement layer 202, thereby protecting the reinforcement layer 202 from corrosion and improving the barrier performance of the hose. The outer layer 204 is provided with thermoplastic polyurethane, which has good wear resistance and weather resistance and can protect the hose from damage by the external environment during use, thereby improving the wear resistance and aging resistance of the hose. The outer surface of the thermoplastic polyurethane outer layer 204 is sprayed with flame-retardant polyethylene to form a fireproof layer 205, which can improve the fireproof performance of the hose, delay the spread of flames and protect the safety of the hose in a fire.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A hose assembly with a composite multi-layer structure, comprising a hose body (1), characterized in that: Both sides of the hose body (1) are movably connected with connecting pieces (101), and connecting pipes (102) are fixedly embedded in the interior of the two connecting pieces (101). The outer surfaces of the opposite sides of the two connecting pipes (102) are movably embedded in the interior of the hose body (1), and first sealing gaskets (103) are fixedly installed on the inner sides of the two connecting pieces (101). Both sides of the interior of the two connecting pieces (101) are movably embedded with movable rods (104), and the four movable rods (104) are fixedly embedded in the interior of the hose body (1). The outer side of each of the movable rods (104) is fixedly mounted with a return spring (105), and the four return springs (105) are divided into two groups, two by two, and the other ends of the two groups of return springs (105) are fixedly mounted on the outer surface of the connecting member (101). The two opposite sides of the two movable rods (104) are fixedly mounted with a fixed plate (106), wherein the inner sides of the two fixed plates (106) are provided with threaded holes (107), and the inner sides of the two connecting members (101) are fixedly embedded with a second sealing gasket (114).

2. The composite multi-layer hose assembly according to claim 1, characterized in that: The other two fixing plates (106) are both threadedly connected to bolts (108) on both sides of their interiors, and the two connecting members (101) are both threadedly connected to screw rods (109) on both sides of their interiors.

3. The composite multi-layer hose assembly according to claim 2, characterized in that: The four bolts (108) are matched with the threaded holes (107), and the outer sides of the four screw rods (109) are fixedly mounted with cranks (110).

4. The composite multi-layer hose assembly according to claim 3, characterized in that: The opposite sides of the four screw rods (109) are movably connected with a clamping plate (111), and the outer sides of the four clamping plates (111) are fixedly mounted with two positioning columns (112).

5. The composite multi-layer hose assembly according to claim 4, characterized in that: The eight positioning posts (112) are divided into two groups of four. The outer surfaces of the two groups of positioning posts (112) are movably embedded in the interior of the connecting piece (101). The interior of the hose body (1) is provided with an inner layer (201).

6. The composite multi-layer hose assembly according to claim 5, characterized in that: The inner wall of the inner layer (201) is provided with a corrosion-resistant layer (2), and rubber pads (113) are fixedly installed on opposite sides of the four clamping plates (111).

7. The composite multi-layer hose assembly according to claim 6, characterized in that: The outer surface of the inner layer (201) is provided with a reinforcement layer (202), and the outer surface of the reinforcement layer (202) is provided with a barrier layer (203).

8. The composite multi-layer hose assembly according to claim 7, characterized in that: The outer surface of the barrier layer (203) is provided with an outer layer (204), and the outer surface of the outer layer (204) is provided with a fireproof layer (205).

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