CN215674044U - Hose assembly capable of resisting positive pressure and external pressure - Google Patents

Abstract

The utility model discloses a hose assembly capable of resisting positive pressure and external pressure, which comprises a hose of an inner layer, wherein a steel wire reinforcing layer is arranged on the periphery of the hose, two ends of the hose are respectively connected with two connectors through sealing structures, the hose is connected with a pipeline system through the connectors, each sealing structure comprises an annular sealing lip arranged on each connector, the ends of the hose and the steel wire reinforcing layer are in compression joint fit with the annular sealing lips through a sealing compression joint outer sleeve, a secondary sealing compression ring is arranged outside the sealing compression joint outer sleeve, and a water-resisting layer positioned on the periphery of the steel wire reinforcing layer is arranged between the two secondary sealing compression rings. The hose can meet the working environment above water and under water, the positive pressure resistance of a conventional hydraulic hose can be realized above water, the negative pressure can be resisted under water without being shrunken, and the reliability of the hose in underwater use is ensured; the flexible connecting pipeline is suitable for the flexible connecting pipeline of the ocean deepwater submersible, is ingenious in design, and greatly improves the external pressure resistance of the common polytetrafluoroethylene hose.

Description

Hose assembly capable of resisting positive pressure and external pressure

Technical Field

The utility model relates to the technical field of pressure-resistant hoses, in particular to a hose assembly capable of resisting positive pressure and external pressure.

Background

The high-pressure hose can bear high pressure flexible pipeline, and is widely used for industrial production and life. The high-pressure hose is divided into: the hose comprises a fiber reinforced polyurethane hose, a fiber reinforced nylon hose, a steel wire reinforced polyurethane hose, a steel wire reinforced nylon hose, a steel wire wound resin hose and a food grade hose. In an underwater working environment, particularly in deep sea, due to a large water pressure, a pressure-resistant hose used underwater needs to have a capability of withstanding not only a positive pressure but also an external pressure.

A common hydraulic pressure-resistant hose in the prior art is a metal hose, and for example, an external pressure-resistant metal hose disclosed in the utility model patent with the publication number of CN205155375U and publication number of 2016.04.13 includes a corrugated tube, a straight-side circular tube extending from the end of the corrugated tube along the length direction of the corrugated tube, and a connection tube sleeved on the periphery of the straight-side circular tube of the corrugated tube; the outer end part of the inner wall of the connecting pipe is provided with a step for installing a connector; the inner end part of the connecting pipe is welded with the corrugated end part of the corrugated pipe; the outer end part of the connecting pipe is welded with the straight-edge circular pipe end of the corrugated pipe at the step. The technical scheme of this patent uses the annular bellows through the inlayer, and the outer net cover layer that uses stainless steel wire to weave, outmost vulcanized rubber layer reach the pressure resistance, and can not make ordinary hose improve the pressure resistance.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a hose assembly capable of resisting positive pressure and external pressure, which solves the technical problem that the pressure resistance of a common hose cannot be improved in the prior art.

The technical scheme of the utility model is realized as follows: the utility model provides a hose assembly of ability malleation and external pressure, includes the hose of inlayer, and the hose periphery is provided with the steel wire enhancement layer, the both ends of hose are passed through seal structure and are linked to each other with two joints respectively, and the hose passes through the joint and links to each other with pipe-line system. The sealing structure comprises an annular sealing lip arranged on the connector, the ends of the hose and the steel wire reinforcing layer are in compression joint fit with the annular sealing lip through a sealing compression joint outer sleeve, and the steel wire reinforcing layer outside the hose plays a role in supporting the framework. The outside of sealed crimping overcoat is provided with the secondary seal clamping ring, is provided with the water barrier that is located the steel wire enhancement layer periphery between two secondary seal clamping rings. The water barrier layer, the steel wire reinforcing layer and the hose act together, so that the hose can not become flat under the action of bearing certain external pressure.

Furthermore, the inner ring of the annular sealing lip is provided with positioning rings connected with the joint at intervals, the end part of the hose is inserted between the annular sealing lip and the positioning rings, the end part of the steel wire reinforcing layer is positioned on the outer wall of the annular sealing lip, and the sealing crimping outer sleeve is pressed on the outer wall of the steel wire reinforcing layer, so that the reliability of one-time sealing is fully ensured.

Further, the length of the sealing compression joint outer sleeve and the length of the positioning ring are both larger than the length of the annular sealing lip, and the secondary sealing compression ring is compressed at the position far away from the annular sealing lip, so that stress concentration caused by secondary sealing compression joint can be avoided, and the sealing reliability of the front end part of the sealing lip can be guaranteed.

Furthermore, the periphery of the waterproof layer is provided with a protective layer, so that the waterproof layer can be prevented from being scratched by an external sharp object.

Furthermore, the end part of the steel wire reinforcing layer and the joint are fixed through laser welding, and external water is prevented from entering the net cover from the end part of the sealed compression joint outer cover.

Further, the protective layer is a sulfonated polyethylene tape layer.

Furthermore, the hose is a polytetrafluoroethylene hose, the water barrier is a polytetrafluoroethylene water barrier, and the steel wire reinforcement layer is a steel wire woven reinforcement layer.

The hose can meet the working environment above water and under water, the positive pressure resistance of a conventional hydraulic hose can be realized above water, the negative pressure can be resisted under water without being shrunken, and the reliability of the hose in underwater use is ensured; the flexible connecting pipeline is suitable for the flexible connecting pipeline of the ocean deepwater submersible, the design is ingenious, the external pressure resistance of the common polytetrafluoroethylene hose is greatly improved, and the performance and the structure of the product are in the leading position in the industry.

Compared with the prior art, the method has the following beneficial effects:

1. according to the requirements of product design and the overall design concept, a polytetrafluoroethylene water-resisting layer is designed outside a common hose, and two ends of the hose are sealed. Therefore, external water pressure can be prevented from acting on the polytetrafluoroethylene hose inside through the steel wire reinforcement layer, and the external pressure can be directly acted on the steel wire reinforcement layer, so that the external pressure resistance of the hose is improved;

2. after the sealed compression joint outer sleeve is buckled, laser welding is adopted between the steel wire reinforcement layer and the joint in the circumferential direction, so that external water is prevented from entering the net sleeve from the end part of the sealed compression joint outer sleeve;

3. secondary buckling and pressing are carried out on two ends of the waterproof layer by adopting secondary sealing press rings, and two ends of the waterproof layer are reliably sealed;

4. the outside of the waterproof layer is protected by a sulfonated polyethylene adhesive tape, so that the polytetrafluoroethylene waterproof layer is prevented from being damaged.

Drawings

In order to illustrate the embodiments of the utility model more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

wherein:

1. the steel wire reinforcement layer, 2, the sealing washer, 3, first joint, 4, sealed crimping overcoat, 5, secondary seal clamping ring, 6, hose, 7, the water barrier, 8, the second connects, 9, annular seal lip, 10, the holding ring, 11, the inoxidizing coating, 12, the solder joint.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

A hose assembly capable of resisting positive pressure and external pressure is shown in figures 1 and 2 and comprises a hose 6 of an inner layer, wherein the hose 6 is a polytetrafluoroethylene hose, a steel wire reinforcing layer 1 is arranged on the periphery of the hose 6, and the steel wire reinforcing layer 1 is a steel wire woven reinforcing layer. Two ends of the hose 6 are respectively connected with the two connectors through sealing structures, and the hose 6 is connected with a pipeline system through the connectors. The joint can be selected according to the requirement of a pipeline system, and comprises a first joint 3 and a second joint 8 in the embodiment, the two joints are the same as the hose 6 in connection structure, and the other end structures of the joints connected with other components are different.

Specifically, the sealing structure comprises an annular sealing lip 9 arranged on the joint, the ends of the hose 6 and the steel wire reinforcement layer 1 are in compression joint fit with the annular sealing lip 9 through a sealing compression joint outer sleeve 4, the steel wire reinforcement layer 1 outside the hose 6 plays a role in supporting a framework, the end of the steel wire reinforcement layer 1 is fixed with the joint through laser welding, and the position of a welding point 12 of the steel wire reinforcement layer is as shown in the figure, so that external water is prevented from entering the net sleeve from the end of the sealing compression joint outer sleeve 4. The outside of sealed crimping overcoat 4 is provided with secondary seal clamping ring 5, is provided with between two secondary seal clamping ring 5 to be located the water barrier 7 of steel wire enhancement layer 1 periphery.

The water barrier 7 is the polytetrafluoroethylene water barrier, and water barrier 7 and steel wire enhancement layer 1 and hose 6 combined action make the hose can bear under the effect of certain external pressure and not become flat. The periphery of water barrier 7 is provided with inoxidizing coating 11, and inoxidizing coating 11 is sulfonated polyethylene adhesive tape layer, can prevent that water barrier 7 from being scratched by external sharp object.

The inner ring interval of annular seal lip 9 is provided with the holding ring 10 that links to each other with the joint, the tip of hose 6 is pegged graft between annular seal lip 9 and holding ring 10, the tip of steel wire enhancement layer 1 is located the outer wall of annular seal lip 9, sealed crimping overcoat 4 is pressed and is established on the outer wall of steel wire enhancement layer 1, has fully guaranteed the reliability of once sealed. The length of sealed crimping overcoat 4 and holding ring 10 all is greater than the length of annular seal lip 9, and the crimping of secondary seal clamping ring 5 can avoid the secondary seal crimping to cause stress concentration in the position of keeping away from annular seal lip 9, can guarantee again that the front end of seal lip 9 is sealed reliable.

Nothing in this specification is intended to be exhaustive of all conventional and well known techniques.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (7)

1. The utility model provides a hose assembly of ability malleation and external pressure, includes hose (6) of inlayer, and hose (6) periphery is provided with steel wire reinforcement layer (1), its characterized in that: the both ends of hose (6) are passed through seal structure and are linked to each other with two joints respectively, seal structure includes annular seal lip (9) that set up on the joint, and the tip of hose (6) and steel wire reinforcement layer (1) is through sealed crimping overcoat (4) and annular seal lip (9) crimping cooperation, and the outside of sealed crimping overcoat (4) is provided with secondary seal clamping ring (5), is provided with between two secondary seal clamping ring (5) and is located water barrier (7) of steel wire reinforcement layer (1) periphery.

2. The positive and external pressure resistant hose assembly of claim 1, wherein: the inner ring interval of annular seal lip (9) is provided with holding ring (10) that link to each other with the joint, the tip of hose (6) is pegged graft between annular seal lip (9) and holding ring (10), the tip of steel wire enhancement layer (1) is located the outer wall of annular seal lip (9), sealed crimping overcoat (4) are pressed and are established on the outer wall of steel wire enhancement layer (1).

3. The positive and external pressure resistant hose assembly of claim 2, wherein: the length of the sealing crimping outer sleeve (4) and the positioning ring (10) is larger than that of the annular sealing lip (9), and the secondary sealing compression ring (5) is crimped at a position far away from the annular sealing lip (9).

4. A hose assembly capable of withstanding positive and external pressures, according to any one of claims 1 to 3, wherein: and a protective layer (11) is arranged on the periphery of the waterproof layer (7).

5. The positive and external pressure resistant hose assembly of claim 4, wherein: and the end part of the steel wire reinforcing layer (1) is fixed with the joint by laser welding.

6. The positive and external pressure resistant hose assembly of claim 5, wherein: the protective layer (11) is a sulfonated polyethylene adhesive tape layer.

7. The hose assembly capable of withstanding positive and external pressures of any one of claims 1 to 3, 5 to 6, wherein: the hose (6) is a polytetrafluoroethylene hose, the waterproof layer (7) is a polytetrafluoroethylene waterproof layer, and the steel wire reinforcing layer (1) is a steel wire woven reinforcing layer.

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