High-pressure-resistant multi-layer fiber reinforced composite PVC (polyvinyl chloride) hose
Through a multi-layer structural design, including inner hose, waterproof layer, halogen-free flame retardant layer, EPDM rubber layer, metal hose armor layer and inner fiber braided mesh, combined with compressive components and connecting components, the composite PVC soft is solved The problem of deformation of the tube during extrusion of external objects has achieved the effect of improving the convenience of use and compressive resistance.
Patent Information
- Application Number
- CN202421496669.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-06-27
AI Technical Summary
Due to its soft and lack of compressive structure, existing composite PVC hoses are prone to deformation when extruded, resulting in unsmooth transport or blockage.
Adopt a multi-layer structural design, including inner hose, waterproof layer, halogen-free flame retardant layer, EPDM rubber layer, metal hose armor layer and inner fiber braided mesh, combining compressive components and connecting components to form an integrated protective layer To improve compressive resistance and convenience.
Effectively prevent the inner hose from deforming, improve the convenience of use and compressive resistance, avoid the need for additional structure, and ensure the stability and efficient connection of the composite PVC hose during use.
Smart Images
Figure CN222277737U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of composite PVC hoses, in particular to a high-pressure resistant multi-layer fiber-reinforced composite PVC hose. Background Art
[0002] Plastic pipes are generally made of synthetic resin, that is, polyester, with the addition of stabilizers, lubricants, plasticizers, etc., and are extruded in a pipe making machine in a "plastic" way. Among them, the most common composite PVC hose is widely used in the transportation of fluids or gases due to its low production cost, easy processing, softness and elasticity.
[0003] However, there are some problems with the existing technology: the existing composite PVC hose is relatively soft and does not have a pressure-resistant structure inside. When the composite PVC hose is connected to a device that needs to transport fluid or gas, it is squeezed by foreign objects and is very easy to deform, resulting in unsmooth transportation or even blockage. There are certain limitations. Therefore, we propose a high-pressure resistant multi-layer fiber-reinforced composite PVC hose. Utility Model Content
[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a high-pressure resistant multi-layer fiber-reinforced composite PVC hose, which integrates an inner hose, a waterproof layer, a halogen-free flame retardant layer, an EPDM rubber layer, a metal hose armor layer, a pressure-resistant component and an inner fiber woven mesh. When the inner hose is in use, it does not need to be additionally protected by other structures, thereby achieving improved convenience of use and pressure resistance.
[0005] The utility model is realized by: a high-pressure resistant multi-layer fiber-reinforced composite PVC hose comprising:
[0006] An inner hose, a waterproof layer, a halogen-free flame retardant layer, an EPDM rubber layer, a metal hose armor layer, a pressure-resistant component and an inner fiber braided net, wherein the waterproof layer, the halogen-free flame retardant layer, the EPDM rubber layer, the metal hose armor layer, the pressure-resistant component and the inner fiber braided net constitute a protective layer for protecting the inner hose;
[0007] A connecting component is fixedly installed on the outside of the protective layer to connect the inner hose with other equipment.
[0008] Optionally, the pressure-resistant component includes an inner tube and a wire mesh reinforcement layer, the inner tube is sleeved on the outside of the inner hose, the wire mesh reinforcement layer is sleeved on the outside of the inner tube, a plurality of groups of pads are arranged between the inner tube and the wire mesh reinforcement layer, a buffer telescopic column is arranged on the upper surface of the pad, one end of the buffer telescopic column passes through the wire mesh reinforcement layer and is arranged on the inner side of the metal hose armor layer.
[0009] Optionally, two groups of reinforcing rods are interspersed between the multiple groups of cushion blocks, and a rotating shaft is provided in the middle of the reinforcing rod for bending the reinforcing rod.
[0010] Optionally, the inner tube, the wire mesh reinforcement layer, the cushion block and the buffer telescopic column are integrated into one.
[0011] Optionally, the connecting assembly includes a connecting sleeve, which is fixedly installed on one end of the outer surface of the waterproof layer, and a clamping sleeve is rotatably installed on one end of the connecting sleeve. A threaded groove is provided in the clamping sleeve, and a threaded rod is threadedly connected in the threaded groove, and a connecting head is fixedly installed on one end of the threaded rod.
[0012] Optionally, a slide groove is opened in one end of the connecting sleeve, a connecting ring is rotatably installed in the slide groove, one end of the connecting ring is fixedly installed on one end of the sleeve, fixing pins are slidably installed on both sides of the other end of the connecting sleeve, pin holes are opened on both sides of one end of the sleeve, and the fixing pin and the pin hole are arranged correspondingly.
[0013] Optionally, the inner hose, waterproof layer, halogen-free flame retardant layer, EPDM rubber layer, metal hose armor layer, inner tube, steel wire mesh reinforcement layer and inner fiber braided mesh are integrated.
[0014] Optionally, the inner hose is located in the innermost layer, the inner tube is arranged on the outer layer of the inner hose, the inner fiber woven mesh is arranged on the outer layer of the steel wire mesh reinforcement layer, the metal hose armor layer is arranged on the outer layer of the inner fiber woven mesh, the EPDM rubber layer is arranged on the outer layer of the metal hose armor layer, the halogen-free flame retardant layer is arranged on the outer layer of the EPDM rubber layer, the waterproof layer is arranged on the outer layer of the halogen-free flame retardant layer, and the waterproof layer is the outermost layer.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] 1. Through the integrated arrangement of the inner hose, waterproof layer, halogen-free flame retardant layer, EPDM rubber layer, metal hose armor layer, pressure-resistant component and inner fiber braided mesh provided in the utility model, the inner hose does not need to be additionally protected by other structures when in use, thereby achieving improved convenience of use and pressure resistance.
[0017] 2. Through the connection assembly provided by the utility model, when the composite PVC hose is connected to the connection head, the connection head can be inserted into the connection assembly, and the connection head can be quickly fixed through the connection assembly, thereby achieving the effect of convenient installation.
[0018] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1It is a structural schematic diagram provided by the utility model;
[0020] Figure 2 It is a schematic diagram of the inner hose provided by the utility model;
[0021] Figure 3 It is a schematic diagram of the connection assembly provided by the utility model;
[0022] Figure 4 It is a schematic diagram of the inner tube provided by the utility model;
[0023] Figure 5 It is a schematic diagram of the pressure-resistant component provided by the utility model.
[0024] In the figure: 1. inner hose; 2. waterproof layer; 3. connecting component; 301. connecting sleeve; 302. connecting ring; 303. ferrule; 304. threaded groove; 305. fixing pin; 306. pin hole; 4. connecting head; 5. halogen-free flame retardant layer; 6. EPDM rubber layer; 7. metal hose armor layer; 8. pressure-resistant component; 801. inner tube; 802. steel wire mesh reinforcement layer; 803. buffer telescopic column; 804. pad; 805. reinforcement rod; 806. rotating shaft; 9. threaded rod; 10. inner fiber braided mesh. DETAILED DESCRIPTION
[0025] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.
[0026] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.
[0027] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
[0028] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.
[0029] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.
[0030] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.
[0031] like Figures 1 to 5As shown, the high-pressure resistant multi-layer fiber-reinforced composite PVC hose provided by the embodiment of the utility model comprises:
[0032] The inner hose 1, the waterproof layer 2, the halogen-free flame retardant layer 5, the ethylene-propylene rubber layer 6, the metal hose armor layer 7, the pressure-resistant component 8 and the inner fiber braided net 10, the waterproof layer 2, the halogen-free flame retardant layer 5, the ethylene-propylene rubber layer 6, the metal hose armor layer 7, the pressure-resistant component 8 and the inner fiber braided net 10 constitute a protective layer for protecting the inner hose 1;
[0033] Specifically, Figure 1 and Figure 2 As shown, the waterproof layer 2 is a rubber plastic waterproof material, which can be made of raw materials such as chloroprene rubber, butyl rubber, EPDM rubber, polyvinyl chloride, polyisobutylene and polyurethane, and has the advantages of high tensile strength, large elasticity and elongation, good adhesion, water resistance and weather resistance, and improves the service life. The halogen-free flame retardant layer 5 is a flame retardant product in which brominated flame retardants or halogen-free flame retardants that meet the European ROHS standard are added to the material to improve the flame retardant properties of the composite material, thereby achieving excellent flame retardant properties. The ethylene-propylene rubber layer 6 is made of ethylene-propylene rubber or ethylene-propylene rubber and It is made of butyl rubber and has ozone resistance and heat resistance. The metal hose armor layer 7 has good softness, fatigue resistance, high pressure bearing, good temperature resistance, corrosion resistance, strong sealing and the like. The pressure-resistant component 8 is arranged between the inner hose 1 and the metal hose armor layer 7. When the inner hose 1 is squeezed, the pressure-resistant component 8 can minimize the squeezing of the inner hose 1 and effectively prevent the inner hose 1 from deformation. The protective layer formed by the above-mentioned multiple groups of structures can protect the inner hose 1, thereby effectively improving the practicality and pressure resistance of the inner hose 1.
[0034] Further, a connection component 3 is fixedly installed on the outside of the protective layer for connecting the inner hose 1 with other equipment; the connection component 3 includes a connection sleeve 301, the connection sleeve 301 is fixedly installed on one end of the outer surface of the waterproof layer 2, a clamping sleeve 303 is rotatably installed on one end of the connection sleeve 301, a thread groove 304 is provided in the clamping sleeve 303, a threaded rod 9 is connected to the thread groove 304, and a connector 4 is fixedly installed on one end of the threaded rod 9;
[0035] Specifically, Figure 1 and Figure 3 As shown, when the general inner hose 1 is docked with the connector 4, it is usually tied with steel wire to complete the connection. However, the utility model inserts the connector 4 into the ferrule 303, and then rotates the ferrule 303. The internal thread groove 304 of the ferrule 303 engages and rotates with the threaded rod 9, so that the threaded rod 9 slowly slides into the connecting sleeve 301, thereby completing the docking, thereby improving the convenience of use.
[0036] Furthermore, a slide groove is provided in one end of the connecting sleeve 301, a connecting ring 302 is rotatably installed in the slide groove, one end of the connecting ring 302 is fixedly installed on one end of the clamping sleeve 303, and fixing pins 305 are slidably installed on both sides of the other end of the connecting sleeve 301, and pin holes 306 are provided on both sides of one end of the clamping sleeve 303, and the fixing pins 305 and the pin holes 306 are arranged correspondingly;
[0037] Specifically, Figure 3 As shown, after the connector 4 is docked with the connector sleeve 301, the fixing pin 305 is inserted so that one end of the fixing pin 305 is inserted into the pin hole 306 to limit the sleeve 303 so that it cannot rotate.
[0038] Further, the pressure-resistant component 8 includes an inner tube 801 and a steel mesh reinforcement layer 802, the inner tube 801 is sleeved on the outside of the inner hose 1, the steel mesh reinforcement layer 802 is sleeved on the outside of the inner tube 801, and multiple groups of pads 804 are arranged between the inner tube 801 and the steel mesh reinforcement layer 802, and a buffer telescopic column 803 is arranged on the upper surface of the pad 804, and one end of the buffer telescopic column 803 passes through the steel mesh reinforcement layer 802 and is arranged on the inner side of the metal hose armor layer 7; two groups of reinforcing rods 805 are interspersed between the multiple groups of pads 804, and a rotating shaft 806 is arranged in the middle of the reinforcing rod 805 for bending the reinforcing rod 805; the inner tube 801, the steel mesh reinforcement layer 802, the pad 804 and the buffer telescopic column 803 are arranged in an integrated manner;
[0039] Specifically, Figure 1 , Figure 4 and Figure 5 As shown, when the inner hose 1 is squeezed and the external pressure is applied inward, one end of the buffer telescopic column 803 will be retracted inward to relieve the force, and at the same time cooperate with the metal hose armor layer 7 to prevent the inner hose 1 from being squeezed and deformed, thereby improving the pressure resistance of the inner hose 1.
[0040] Further, such as Figure 1 and Figure 2 As shown, the inner hose 1, the waterproof layer 2, the halogen-free flame retardant layer 5, the EPDM rubber layer 6, the metal hose armor layer 7, the inner tube 801, the steel wire mesh reinforcement layer 802 and the inner fiber braided mesh 10 are integrated;
[0041] The protective layer and the inner hose 1 are integrated to reduce the area occupied when placed, and all functional effects will not be affected. Therefore, when the inner hose 1 is in use, it does not need to be additionally protected by other structures, thereby improving the convenience of use.
[0042] Specifically, Figure 2As shown, the inner hose 1 is located in the innermost layer, the inner tube 801 is arranged on the outer layer of the inner hose 1, the inner fiber woven mesh 10 is arranged on the outer layer of the steel wire mesh reinforcement layer 802, the metal hose armor layer 7 is arranged on the outer layer of the inner fiber woven mesh 10, the EPDM rubber layer 6 is arranged on the outer layer of the metal hose armor layer 7, the halogen-free flame retardant layer 5 is arranged on the outer layer of the EPDM rubber layer 6, the waterproof layer 2 is arranged on the outer layer of the halogen-free flame retardant layer 5, and the waterproof layer 2 is the outermost layer, which is used to wrap and seal the above materials.
[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. High-pressure resistant multi-layer fiber-reinforced composite PVC hose, characterized in that: include: An inner hose (1), a waterproof layer (2), a halogen-free flame retardant layer (5), an ethylene-propylene rubber layer (6), a metal hose armor layer (7), a pressure-resistant component (8) and an inner fiber braided mesh (10), wherein the waterproof layer (2), the halogen-free flame retardant layer (5), the ethylene-propylene rubber layer (6), the metal hose armor layer (7), the pressure-resistant component (8) and the inner fiber braided mesh (10) constitute a protective layer for protecting the inner hose (1); A connecting component (3) is fixedly mounted on the outside of the protective layer and is used for connecting the inner hose (1) with other equipment.
2. The high-pressure resistant multi-layer fiber-reinforced composite PVC hose according to claim 1, characterized in that: The pressure-resistant component (8) comprises an inner tube (801) and a steel wire mesh reinforcement layer (802); the inner tube (801) is sleeved on the outside of the inner hose (1); the steel wire mesh reinforcement layer (802) is sleeved on the outside of the inner tube (801); a plurality of groups of cushion blocks (804) are arranged between the inner tube (801) and the steel wire mesh reinforcement layer (802); a buffer telescopic column (803) is arranged on the upper surface of the cushion block (804); one end of the buffer telescopic column (803) passes through the steel wire mesh reinforcement layer (802) and is arranged on the inner side of the metal hose armor layer (7).
3. The high-pressure resistant multi-layer fiber-reinforced composite PVC hose according to claim 2, characterized in that: Two groups of reinforcing rods (805) are interspersed between the multiple groups of cushion blocks (804), and a rotating shaft (806) is provided in the middle of the reinforcing rod (805) for bending the reinforcing rod (805).
4. The high-pressure resistant multi-layer fiber-reinforced composite PVC hose according to claim 3, characterized in that: The inner tube (801), the wire mesh reinforcement layer (802), the cushion block (804) and the buffer telescopic column (803) are arranged in an integrated manner.
5. The high-pressure resistant multi-layer fiber-reinforced composite PVC hose according to claim 1, characterized in that: The connection assembly (3) comprises a connection sleeve (301), the connection sleeve (301) being fixedly mounted on one end of the outer surface of the waterproof layer (2), a clamping sleeve (303) being rotatably mounted on one end of the connection sleeve (301), a thread groove (304) being provided inside the clamping sleeve (303), a threaded rod (9) being threadedly connected to the thread groove (304), and a connector (4) being fixedly mounted on one end of the threaded rod (9).
6. The high-pressure resistant multi-layer fiber-reinforced composite PVC hose according to claim 5, characterized in that: A slide groove is provided in one end of the connecting sleeve (301), and a connecting ring (302) is rotatably installed in the slide groove. One end of the connecting ring (302) is fixedly installed on one end of the clamping sleeve (303). Fixing pins (305) are slidably installed on both sides of the other end of the connecting sleeve (301). Pin holes (306) are provided on both sides of one end of the clamping sleeve (303), and the fixing pin (305) and the pin hole (306) are arranged correspondingly.
7. The high-pressure resistant multi-layer fiber-reinforced composite PVC hose according to claim 4, characterized in that: The inner hose (1), waterproof layer (2), halogen-free flame retardant layer (5), EPDM rubber layer (6), metal hose armor layer (7), inner tube (801), steel wire mesh reinforcement layer (802) and inner fiber braided mesh (10) are arranged in an integrated manner.
8. The high-pressure resistant multi-layer fiber-reinforced composite PVC hose according to claim 7, characterized in that: The inner hose (1) is located in the innermost layer, the inner tube (801) is arranged on the outer layer of the inner hose (1), the inner fiber braided mesh (10) is arranged on the outer layer of the steel wire mesh reinforcement layer (802), the metal hose armor layer (7) is arranged on the outer layer of the inner fiber braided mesh (10), the EPDM rubber layer (6) is arranged on the outer layer of the metal hose armor layer (7), the halogen-free flame retardant layer (5) is arranged on the outer layer of the EPDM rubber layer (6), the waterproof layer (2) is arranged on the outer layer of the halogen-free flame retardant layer (5), and the waterproof layer (2) is the outermost layer.