Double-sided polyurethane high-pressure wear-resistant composite hose

Abstract

The utility model discloses a double-sided polyurethane high-pressure wear-resistant composite hose, which relates to the field of high-pressure wear-resistant composite hoses and comprises an outer rubber hose, an inner rubber hose is arranged on the inner wall of the outer rubber hose, a clamping cavity is arranged between the outer rubber hose and the inner rubber hose, and a pressure-resistant reset mechanism connected with the outer rubber hose and the inner rubber hose is arranged in the clamping cavity. The pressure-resistant reset mechanism comprises an elastic reset assembly and a pressure-resistant assembly, the pressure-resistant assembly is connected with the inner wall of the outer rubber pipe, and the elastic reset assembly is connected with the inner wall of the inner rubber pipe. Through the arrangement of the elastic reset assembly and the pressure-resistant assembly, the pressure-resistant performance of the hose can be improved on the premise that the toughness of the hose is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of high pressure wear -resistant composite hose, specifically a double -faced polyurethane high pressure wear -resistant composite hose. BACKGROUND

[0002] The polyurethane hose is usually composed of an inner rubber layer, a fiber reinforced layer and an outer rubber layer, the inner and outer rubber layers adopt polyurethane material, have good wear resistance, and the existing fiber reinforced layer is generally polyester fiber, which can improve the compression resistance of the hose, but the compression resistance effect is limited, and the main effect is to improve the toughness.

[0003] Therefore, when the hose is applied to the pressure field, the compression resistance is limited, and there is room for further improvement. UTILITY MODEL CONTENT

[0004] The utility model discloses a double -faced polyurethane high pressure wear -resistant composite hose.

[0005] To achieve the above object, the utility model provides the following technical scheme: a double -faced polyurethane high pressure wear -resistant composite hose, including the outer rubber tube, the inner wall of outer rubber tube is provided with the inner rubber tube, the outer rubber tube with the inner rubber tube between has the clamping cavity, be provided with with the outer rubber tube, the inner rubber tube links to each other in the clamping cavity and has the pressure -resistant reset mechanism, the pressure -resistant reset mechanism includes the elastic reset subassembly and the pressure -resistant subassembly, the pressure -resistant subassembly with the inner wall of outer rubber tube links to each other, the elastic reset subassembly with the inner wall of inner rubber tube links to each other.

[0006] As a further scheme of the utility model: the elastic component includes the elastic piece of sleeve joint in the inner rubber tube, and the elastic piece is fixedly connected with the two end protruding parts of the inner rubber tube.

[0007] As a further scheme of the utility model: the pressure -resistant subassembly includes a plurality of annular grooves in the inside of outer rubber tube, and the inner wall of the annular groove is fixedly connected with the pressure -resistant ring.

[0008] As a further scheme of the utility model: the elastic piece is in spiral structure.

[0009] As a further scheme of the utility model: the number of pressure -resistant ring and annular groove is multiple, and multiple pressure -resistant ring, annular groove equidistantly distributes along the length axis of outer rubber tube.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] 1. By setting the elastic reset subassembly and the pressure -resistant subassembly, the compression resistance of the hose can be improved under the premise of ensuring the toughness of the hose. DRAWINGS

[0012] Figure 1 It is the internal structure schematic view of the utility model;

[0013] Figure 2 It is the internal structure schematic view of the utility model;

[0014] Figure 3 It is the internal structure schematic view of the utility model; Figure 2 The local enlarged view of A in the middle;

[0015] Figure 4 It is the installation schematic view of the elastic member of the utility model.

[0016] In the drawing: 1, outer rubber tube;2, inner rubber tube;3, pressure ring;4, annular groove;5, elastic member. Specific implementation

[0017] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0018] Please refer to Figures 1-4 , in the embodiments of the utility model, a double-sided polyurethane high-pressure wear-resistant composite hose, comprising an outer rubber tube 1, the inner wall of the outer rubber tube 1 is provided with an inner rubber tube 2, the outer rubber tube 1 and the inner rubber tube 2 have a clamping cavity, the clamping cavity is provided with a pressure-resistant reset mechanism connected with the outer rubber tube 1 and the inner rubber tube 2, the pressure-resistant reset mechanism comprises an elastic reset assembly and a pressure-resistant assembly, the pressure-resistant assembly is connected with the inner wall of the outer rubber tube 1, and the elastic reset assembly is connected with the inner wall of the inner rubber tube 2.

[0019] In the embodiment: the outer rubber tube 1 and the inner rubber tube 2 are both made of polyurethane material, when the pipeline is bent, the outer rubber tube 1 and the inner rubber tube 2 are bent, at this time, the elastic reset assembly is elastically deformed, when the external restriction disappears, the outer rubber tube 1 and the inner rubber tube 2 reset under the elastic reset assembly, when the outer rubber tube 1 is subjected to pressure, the pressure-resistant assembly will block the pressure from being transmitted to the inner rubber tube 2, keeping the current shape of the inner rubber tube 2, avoiding the blockage of the flow passage of the inner rubber tube 2.

[0020] Please refer to Figure 2 , Figure 3 and Figure 4 , the elastic assembly comprises an elastic member 5 sleeved on the inner rubber tube 2, the elastic member 5 is fixedly connected with the two end protruding parts of the inner rubber tube 2, and the elastic member 5 is in spiral structure.

[0021] In the embodiment, when the inner rubber tube 2 and the outer rubber tube 1 are bent, the elastic member 5 is bent and deformed elastically, and has an elastic reset function; after the external force is removed, the elastic member 5 can drive the outer rubber tube 1 and the inner rubber tube 2 to reset.

[0022] Please refer to Figure 2 With Figure 3 The pressure-resistant assembly comprises a plurality of annular grooves 4 arranged in the inner part of the outer rubber tube 1, and the inner wall of the annular groove 4 is fixedly connected with a pressure-resistant ring 3; the number of the pressure-resistant ring 3 and the annular groove 4 is multiple, and the multiple pressure-resistant rings 3 and the annular grooves 4 are distributed equidistantly along the length axis of the outer rubber tube 1.

[0023] In the embodiment, when the outer rubber tube 1 is subjected to pressure, the pressure is applied to the pressure-resistant ring 3 through the outer rubber tube 1, and the pressure-resistant ring 3 blocks the pressure transmission, so that the inner rubber tube 2 can be prevented from deforming and being deformed, and the flow channel is kept unobstructed; and since the multiple pressure-resistant rings 3 are spaced apart, the pressure-resistant ring 3 can act when the outer rubber tube 1 is bent.

[0024] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A double-sided polyurethane high-pressure wear-resistant composite hose, comprising an outer tubing (1), characterized in that, The inner wall of the outer rubber tube (1) is provided with an inner rubber tube (2). There is a cavity between the outer rubber tube (1) and the inner rubber tube (2). A pressure-resistant reset mechanism connected to the outer rubber tube (1) and the inner rubber tube (2) is provided in the cavity. The pressure-resistant reset mechanism includes an elastic reset component and a pressure-resistant component. The pressure-resistant component is connected to the inner wall of the outer rubber tube (1), and the elastic reset component is connected to the inner wall of the inner rubber tube (2).

2. The double-sided polyurethane high-pressure wear-resistant composite hose according to claim 1, characterized in that, The elastic reset assembly includes an elastic element (5) sleeved on the inner tube (2), wherein the elastic element (5) is fixedly connected at both ends to the protruding portions at both ends of the inner tube (2).

3. The double-sided polyurethane high-pressure wear-resistant composite hose according to claim 2, characterized in that, The pressure-resistant component includes a plurality of annular grooves (4) formed inside the outer tubing (1), and a pressure-resistant ring (3) is fixedly connected to the inner wall of the annular grooves (4).

4. The double-sided polyurethane high-pressure wear-resistant composite hose according to claim 3, characterized in that, The elastic element (5) has a spiral structure.

5. The double-sided polyurethane high-pressure wear-resistant composite hose according to claim 4, characterized in that, The number of pressure-resistant rings (3) and annular grooves (4) is multiple, and the multiple pressure-resistant rings (3) and annular grooves (4) are equidistantly distributed along the length axis of the outer rubber tube (1).

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