Oil-resistant and flame-retardant high-pressure steel wire braided rubber hose

Abstract

The utility model discloses an oil-resistant and flame-retardant high-pressure steel wire braided rubber hose, and belongs to the technical field of high-pressure steel wire braided rubber hoses, the oil-resistant and flame-retardant high-pressure steel wire braided rubber hose comprises a rubber hose main body, end connectors are hermetically connected to two ends of the rubber hose main body, and a flame-retardant sleeve sleeves the rubber hose main body; the two ends of the flame-retardant sleeve are fixedly connected to the end connectors through clamping mechanisms, the rubber pipe body comprises an inner rubber layer, an outer rubber layer and an embedded steel wire mesh layer, and an oil-resistant layer is fixedly bonded to the inner wall of the inner rubber layer; the two ends of the flame-retardant casing pipe are fixedly connected to the end connectors through the clamping mechanisms, so that when the flame-retardant casing pipe is abraded or locally burnt out, the flame-retardant casing pipe can be independently replaced, resource waste can be avoided, meanwhile, the embedded steel wire mesh layer is arranged in the rubber pipe body and is formed by connecting multiple layers of steel wire mesh structures, and the rubber pipe is convenient to use. The extrusion force can be transmitted and shared together, and the high-pressure resistance of the rubber pipe main body is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of high-pressure steel wire braided rubber hoses, and in particular to a high-pressure steel wire braided rubber hose that is oil-resistant and flame-retardant. Background Art

[0002] High-pressure steel wire braided oil pipe is also called high-pressure oil pipe, which refers to the pipeline used for conveying petroleum-based (such as mineral oil, soluble oil, hydraulic oil, fuel oil, lubricating oil) and water-based liquids (such as emulsion, oil-water emulsion, water) with a certain pressure and temperature and liquid transmission in mine hydraulic supports, oil field development, engineering construction, lifting and transportation, metallurgical forging, mining equipment, ships, injection molding machinery, agricultural machinery, various machine tools and mechanized and automated hydraulic systems in various industrial sectors.

[0003] In the patent document with the published publication number CN107654758A, a high-pressure steel wire braided rubber hose with oil resistance and flame retardancy is provided, whose structure includes a connecting plate, a fastening ring, a fixing ring, a connecting port, an oil-resistant flame retardant device, and a transmission pipe. The connecting plate is a disc-shaped structure, and the right side is tightly connected to the left edge of the transmission pipe, and there is no gap between the two. The transmission pipe occupies one-half of the area on the right side of the connecting plate. The oil-resistant flame retardant device is connected to the sheath through the right side of the envelope to isolate the equipment, and then the flame retardant layer and the oil-resistant layer are connected through the inner ring of the sheath to perform oil-proof and flame retardant. Since the flame retardant layer is made of a special flame retardant material, ordinary flames cannot burn it, thereby enhancing the combustion-supporting performance of the equipment.

[0004] The above-mentioned hose essentially integrates the flame retardant layer and the hose body to form an oil-resistant flame retardant device, which also makes it impossible to separate the flame retardant layer arranged on the outermost layer from the hose body. If the flame retardant layer is worn or partially burned, the entire pipe body including the hose needs to be replaced, which is easy to cause waste of resources. At the same time, there is no steel wire braided mesh layer in the pipe body, which makes the high-pressure resistance of the entire pipe body poor. Although most hoses on the market are provided with steel wire braided mesh layers, the mesh layers are only simply wrapped, and the integrity between the mesh layers is not strong, which is not conducive to force transmission. Therefore, in view of the above problems, a high-pressure steel wire braided hose with oil resistance and flame retardancy is proposed. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present application provides a high-pressure steel wire braided hose that is oil-resistant and flame-retardant, which overcomes the shortcomings of the prior art and aims to solve the problem that the flame-retardant layer of the hose is difficult to replace separately and the integrity between the layers of the steel wire braided mesh is not high.

[0006] To achieve the above objectives, this application provides the following technical solutions:

[0007] A high-pressure steel wire braided hose with oil resistance and flame retardancy comprises a hose body, both ends of the hose body are sealedly connected with end connectors, a flame retardant sleeve is arranged outside the hose body, both ends of the flame retardant sleeve are fixedly connected to the end connectors by a clamping mechanism, the hose body comprises an inner rubber layer, an outer rubber layer and an embedded steel wire mesh layer, the embedded steel wire mesh layer is arranged between the inner rubber layer and the outer rubber layer and fixedly bonded to the both, and an oil-resistant layer is fixedly bonded to the inner wall of the inner rubber layer.

[0008] By adopting the above technical scheme, since both ends of the flame retardant sleeve are fixedly connected to the end connector by a clamping mechanism, when the flame retardant sleeve is worn or partially burned, the flame retardant sleeve can be replaced separately, and there is no need to replace the hose body, which can avoid waste of resources. At the same time, an embedded steel wire mesh layer is arranged in the hose body, which is composed of multiple layers of steel wire mesh structure connected to each other, so that it has strong integrity, and the extrusion force can be transmitted and shared by the multiple layers of steel wire mesh, thereby effectively improving the high pressure resistance of the hose body.

[0009] As a preferred technical solution of the present application, the embedded steel wire mesh layer includes an inner steel wire mesh and an outer steel wire mesh. The inner steel wire mesh and the outer steel wire mesh have completely identical structural composition and material, and are both mesh layer structures woven from stainless steel wire.

[0010] By adopting the above technical solution, the inner steel wire mesh and the outer steel wire mesh are used as the main components of the embedded steel wire mesh layer to share the extrusion force of the inner rubber layer and the outer rubber layer, thereby improving the overall high-pressure resistance of the hose body.

[0011] As a preferred technical solution of the present application, a connecting adhesive layer is arranged between the inner steel wire mesh and the outer steel wire mesh, and both the inner steel wire mesh and the outer steel wire mesh are embedded in the connecting adhesive layer, and the inner steel wire mesh and the outer steel wire mesh are connected to each other by wire hooks.

[0012] By adopting the above technical solution, the combined effect of the connecting rubber layer and the wire hooks can be used to achieve an effective connection between the inner wire mesh and the outer wire mesh, so that the two can be regarded as a whole, which can better transmit and share pressure, ensuring that the overall embedded wire mesh layer has stronger pressure resistance.

[0013] As a preferred technical solution of the present application, the clamping mechanism includes an end ring and a clamping sleeve, wherein the end ring is fixedly arranged at both ends of the flame retardant sleeve, and a clamping ring is fixedly arranged at one end of the clamping sleeve close to the flame retardant sleeve, and the through hole size of the clamping ring is consistent with the outer diameter size of the flame retardant sleeve.

[0014] By adopting the above technical solution, the end of the flame retardant sleeve can be fixedly connected to the end connector in a manner that the clamping ring on the clamping sleeve clamps the end ring, so that the flame retardant sleeve can protect the internal hose body.

[0015] As a preferred technical solution of the present application, an internal thread is provided on the inner wall of the clamping tube, an external thread section is fixedly provided on the outer wall of the end connector, and the thread size of the internal thread matches the thread size of the external thread section.

[0016] By adopting the above technical solution, the fixed connection between the clamping sleeve and the end connector can be achieved by the meshing action of the internal thread and the external thread segment.

[0017] As a preferred technical solution of the present application, a sealing gasket is attached to the end surface of one end of the end connector connected to the flame-retardant sleeve, and the sealing gasket is made of elastic flame-retardant material.

[0018] By adopting the above technical solution, the possible gap between the flame-retardant sleeve and the end connector can be filled with a sealed pad, thereby ensuring the sealing and effective flame-retardant ability of the connection, and preventing high temperature from entering the interior through the gap and causing damage to the hose body.

[0019] As a preferred technical solution of the present application, a plurality of vertical convex patterns distributed in a circular array are provided on the outer wall of the clamping tube, and the cross-section of the vertical convex patterns is semicircular.

[0020] By adopting the above technical solution, the friction between the human hand and the clamping cylinder can be increased, making it easier to twist the clamping cylinder to rotate, install, fix or disassemble it.

[0021] As a preferred technical solution of the present application, the flame-retardant sleeve is an elastic tubular structure made of flame-retardant TPE, and the oil-resistant layer is an elastic tubular structure made of oil-resistant rubber.

[0022] By adopting the above technical solution, the flame-retardant sleeve can have good flame-retardant performance while being elastic, and the oil-resistant layer can have good oil-resistant performance while being elastic.

[0023] The beneficial effects of the present application are as follows: since the flame retardant sleeve is sleeved on the outside of the hose body and both ends are fixedly connected to the end connectors by a clamping mechanism, when the flame retardant sleeve is worn or partially burned, the flame retardant sleeve can be replaced separately without replacing the hose body, thereby avoiding waste of resources. At the same time, an interlocking steel wire mesh layer is arranged in the hose body, which is composed of multiple layers of steel wire mesh structure connected to each other, so that it has strong integrity, and the extrusion pressure can be transmitted and shared by the multiple layers of steel wire mesh, thereby effectively improving the high pressure resistance of the hose body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of this application;

[0025] Figure 2 This is a cross-sectional view of the hose body of the present application;

[0026] Figure 3 This is a schematic diagram of the structure of the clamping mechanism of this application;

[0027] Figure 4 This is a schematic diagram of the structure of the interlocking steel wire mesh layer of the present application.

[0028] In the figure: 1. hose body; 11. inner rubber layer; 12. outer rubber layer; 13. embedded steel wire mesh layer; 131. inner steel wire mesh; 132. outer steel wire mesh; 133. connecting rubber layer; 134. wire hook; 14. oil-resistant layer; 2. end connector; 21. external thread section; 3. flame-retardant sleeve; 4. clamping mechanism; 41. end ring; 42. clamping tube; 421. internal thread; 422. vertical convex pattern; 43. clamping ring; 44. sealing gasket. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] Reference Figure 1-2 A high-pressure steel wire braided hose with oil resistance and flame retardancy comprises a hose body 1, both ends of the hose body 1 are sealedly connected with end connectors 2, a flame retardant sleeve 3 is arranged on the outer cover of the hose body 1, both ends of the flame retardant sleeve 3 are fixedly connected to the end connector 2 through a clamping mechanism 4, the hose body 1 comprises an inner rubber layer 11, an outer rubber layer 12 and an embedded steel wire mesh layer 13, the embedded steel wire mesh layer 13 is arranged between the inner rubber layer 11 and the outer rubber layer 12 and fixedly bonded to the two, an oil resistant layer 14 is fixedly bonded to the inner wall of the inner rubber layer 11, and by adopting the above-mentioned technology In the scheme, since both ends of the flame retardant sleeve 3 are fixedly connected to the end connector 2 by the clamping mechanism 4, when the flame retardant sleeve 3 is worn or partially burned, the flame retardant sleeve 3 can be replaced separately, and there is no need to replace the hose body 1, which can avoid waste of resources. At the same time, an embedded steel wire mesh layer 13 is arranged in the hose body 1, which is composed of multiple layers of steel wire mesh structure connected to each other, so that it has strong integrity, and the extrusion force can be transmitted and shared by the multiple layers of steel wire mesh, thereby effectively improving the high pressure resistance of the hose body 1.

[0031] In addition, the flame retardant sleeve 3 is an elastic tubular structure made of flame retardant TPE, and the oil resistant layer 14 is an elastic tubular structure made of oil resistant rubber. By adopting the above technical scheme, the flame retardant sleeve 3 can have good flame retardant properties while being elastic, and the oil resistant layer 14 can have good oil resistance while being elastic.

[0032] Reference Figure 2 , Figure 4 The embedded steel wire mesh layer 13 includes an inner steel wire mesh 131 and an outer steel wire mesh 132. The inner steel wire mesh 131 and the outer steel wire mesh 132 have the same structure and material, and are both mesh structures woven from stainless steel wires. By adopting the above technical solution, the inner steel wire mesh 131 and the outer steel wire mesh 132 are used as the main components of the embedded steel wire mesh layer 13 to share the extrusion force of the inner rubber layer 11 and the outer rubber layer 12, thereby improving the overall high pressure resistance performance of the hose body 1. In addition, the inner steel wire mesh 131 and the outer steel wire mesh 132 A connecting glue layer 133 is arranged in between, and the inner steel wire mesh 131 and the outer steel wire mesh 132 are both embedded in the connecting glue layer 133, and at the same time, the inner steel wire mesh 131 and the outer steel wire mesh 132 are connected to each other through the wire hooks 134. The connecting glue layer 133 and the wire hooks 134 can combine to achieve effective connection between the inner steel wire mesh 131 and the outer steel wire mesh 132, so that the two can be regarded as a whole, which can better transmit and share pressure, and ensure that the mosaic steel wire mesh layer 13 has a stronger pressure resistance as a whole.

[0033] Reference Figure 3 The clamping mechanism 4 includes an end ring 41 and a clamping sleeve 42, wherein the end ring 41 is fixedly arranged at both ends of the flame-retardant sleeve 3, and a clamping ring 43 is fixedly arranged at one end of the clamping sleeve 42 close to the flame-retardant sleeve 3, and the through-hole size of the clamping ring 43 is consistent with the outer diameter size of the flame-retardant sleeve 3. By adopting the above technical scheme, the end of the flame-retardant sleeve 3 can be fixedly connected to the end connector 2 in a manner that the clamping ring 43 on the clamping sleeve 42 clamps the end ring 41, so that the flame-retardant sleeve 3 can protect the internal hose body 1. In addition, an internal thread 421 is provided on the inner wall of the clamping sleeve 42, and an external thread section 21 is fixedly arranged on the outer wall of the end connector 2. The thread size of the internal thread 421 is consistent with the thread size of the external thread section 21, and the fixed connection between the clamping sleeve 42 and the end connector 2 can be achieved by the meshing action of the internal thread 421 and the external thread section 21.

[0034] In particular, a sealing gasket 44 is attached to the end surface of one end where the end connector 2 is connected to the flame retardant sleeve 3. The sealing gasket 44 is made of elastic flame retardant material. By adopting the above technical solution, the sealing gasket 44 can fill the possible gap between the flame retardant sleeve 3 and the end connector 2, thereby ensuring the sealing of the connection and effective flame retardancy, and preventing high temperature from entering the interior through the gap and causing damage to the hose body 1.

[0035] Reference Figure 3 A plurality of vertical convex grooves 422 distributed in a circular array are provided on the outer wall of the clamping tube 42. The cross-section of the vertical convex grooves 422 is semicircular. By adopting the above technical solution, the friction between the human hand and the clamping tube 42 can be increased, making it easier to twist the clamping tube 42 to rotate, install, fix or disassemble it.

[0036] Working principle: The flame retardant sleeve 3 is sleeved on the outside of the hose body 1. The flame retardant sleeve 3 can protect the internal hose body 1. Both ends of the flame retardant sleeve 3 are fixedly connected to the end connector 2 through a clamping mechanism 4. Specifically, the end of the flame retardant sleeve 3 is fixedly connected to the end connector 2 in a manner that the clamping ring 43 on the clamping tube 42 clamps the end ring 41. Therefore, when the flame retardant sleeve 3 is worn or partially burned, the flame retardant sleeve 3 can be replaced separately without replacing the hose body 1, thereby avoiding waste of resources.

[0037] At the same time, an embedded steel wire mesh layer 13 is arranged in the hose body 1, and the embedded steel wire mesh layer 13 includes an inner steel wire mesh 131 and an outer steel wire mesh 132, both of which are embedded in the connecting rubber layer 133, and at the same time, the two are connected to each other through a wire hook 134. The combined effect of the connecting rubber layer 133 and the wire hook 134 can realize an effective connection between the inner steel wire mesh 131 and the outer steel wire mesh 132, so that the two can be regarded as a whole, which can better transmit and share pressure, ensuring that the embedded steel wire mesh layer 13 has a stronger pressure resistance as a whole, thereby effectively improving the high pressure resistance of the hose body 1.

[0038] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. Although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A high-pressure steel wire braided hose with oil resistance and flame retardancy, comprising a hose body (1), characterized in that: Both ends of the hose body (1) are hermetically connected to end connectors (2); a flame retardant sleeve (3) is provided on the outer shell of the hose body (1); both ends of the flame retardant sleeve (3) are fixedly connected to the end connector (2) via a clamping mechanism (4); the hose body (1) comprises an inner rubber layer (11), an outer rubber layer (12) and an embedded steel wire mesh layer (13); the embedded steel wire mesh layer (13) is arranged between the inner rubber layer (11) and the outer rubber layer (12) and is fixedly bonded to both; an oil resistant layer (14) is fixedly bonded to the inner wall of the inner rubber layer (11).

2. The oil-resistant and flame-retardant high-pressure steel wire braided hose according to claim 1 is characterized in that: The embedded steel wire mesh layer (13) comprises an inner steel wire mesh (131) and an outer steel wire mesh (132); the inner steel wire mesh (131) and the outer steel wire mesh (132) have completely identical structural compositions and materials, and are both mesh layer structures woven from stainless steel wires.

3. The oil-resistant and flame-retardant high-pressure steel wire braided hose according to claim 2 is characterized in that: A connecting adhesive layer (133) is provided between the inner steel wire mesh (131) and the outer steel wire mesh (132), and both the inner steel wire mesh (131) and the outer steel wire mesh (132) are embedded in the connecting adhesive layer (133), and the inner steel wire mesh (131) and the outer steel wire mesh (132) are connected to each other via steel wire hooks (134).

4. The oil-resistant and flame-retardant high-pressure steel wire braided hose according to claim 1, characterized in that: The clamping mechanism (4) comprises an end ring (41) and a clamping sleeve (42), wherein the end ring (41) is fixedly arranged at both ends of the flame retardant sleeve (3), and a clamping ring (43) is fixedly arranged at one end of the clamping sleeve (42) close to the flame retardant sleeve (3), and the through hole size of the clamping ring (43) is consistent with the outer diameter size of the flame retardant sleeve (3).

5. The oil-resistant and flame-retardant high-pressure steel wire braided hose according to claim 4, characterized in that: An internal thread (421) is provided on the inner wall of the clamping tube (42), and an external thread section (21) is fixedly provided on the outer wall of the end connector (2), wherein the thread size of the internal thread (421) matches the thread size of the external thread section (21).

6. The oil-resistant and flame-retardant high-pressure steel wire braided hose according to claim 1, characterized in that: A sealing pad (44) is attached to the end surface of one end of the end connector (2) connected to the flame-retardant sleeve (3); the sealing pad (44) is made of an elastic flame-retardant material.

7. The oil-resistant and flame-retardant high-pressure steel wire braided hose according to claim 4, characterized in that: A plurality of vertical convex patterns (422) distributed in a circumferential array are provided on the outer wall of the clamping cylinder (42), and the cross-section of the vertical convex patterns (422) is semicircular.

8. The oil-resistant and flame-retardant high-pressure steel wire braided hose according to claim 1, characterized in that: The flame-retardant sleeve (3) is a tubular structure with elasticity made of flame-retardant TPE, and the oil-resistant layer (14) is a tubular structure with elasticity made of oil-resistant rubber.

Images