CN117739169A - Liquid filling hose, pressurized liquid filling device and pressurized liquid filling method - Google Patents

Abstract

The embodiment of the invention provides a liquid filling hose, a pressurized liquid filling device and a pressurized liquid filling method, and relates to the technical field of submarine equipment. The liquid filling hose comprises a hose body and a sealing plug, wherein the hose body is provided with a liquid filling hole, and the sealing plug is used for sealing the liquid filling hole after liquid filling of the hose body is completed. The liquid is injected into the hose body through the liquid filling hole, and when the pressure value in the pipeline of the hose body reaches a preset pressure value, the sealing plug stretches into the liquid filling hole and is plugged, so that the hose body is simply sealed. The liquid filling hose has the advantages of simple structure, convenient liquid filling operation, cost saving and no interference with other structures after liquid filling.

Description

Liquid filling hose, pressurized liquid filling device and pressurized liquid filling method

Technical Field

The invention relates to the technical field of submarine equipment, in particular to a liquid filling hose, a pressurized liquid filling device and a pressurized liquid filling method.

Background

For the hose applied to the seabed, the hose is easy to crush due to the fact that the hose is often required to face larger external water pressure, and the hose is easy to enter the hose under the action of the larger external water pressure, so that the hose is easy to leak, and oil is required to be filled into the hose to balance the external water pressure, so that the hose is prevented from being crushed and leaked. In the existing liquid filling mode, a half of hydraulic connectors (male connectors or female connectors) are installed on a pipeline, the other half of hydraulic connectors are installed on an external liquid filling soft pipeline, when liquid is filled, the male connectors and the female connectors are matched for liquid filling, when the pressure in the pipeline reaches a preset pressure value, the male connectors and the female connectors are disconnected, and sealing is completed through the self-sealing performance of a single male connector or a single female connector.

However, by adopting the liquid filling mode, a male hydraulic connector or a female hydraulic connector needs to be reserved on a pipeline, the hydraulic connector is relatively large, and the hydraulic connector also needs to be provided with a corresponding protective cap structure to protect the internal structure of the hydraulic connector.

Disclosure of Invention

The invention aims at providing a liquid filling hose, a pressurized liquid filling device and a method, which have the advantages of simple structure, convenient liquid filling operation, cost saving and no interference with other structures after liquid filling.

Embodiments of the invention may be implemented as follows:

in a first aspect, the present invention provides a liquid filled hose comprising:

the hose body is provided with a liquid filling hole; and

and the sealing plug is used for sealing the liquid filling hole after the liquid injection of the hose body is completed.

In an alternative embodiment, the hose body is further provided with a mounting groove, the mounting groove is communicated with the filling hole, the diameter of the mounting groove is larger than that of the filling hole, and the mounting groove is used for mounting an expansion sleeve of the pressurized filling device and is in abutting fit with a sealing sleeve of the pressurized filling device.

In an alternative embodiment, the sealing plug comprises a sealing part and a fixing part which are connected, wherein the diameter of the fixing part is larger than that of the sealing part, and the sealing part is used for being arranged in the liquid filling hole and matched with the inner wall of the liquid filling hole; the fixing part is used for being abutted and fixed on the bottom wall of the mounting groove.

In an alternative embodiment, a first annular groove is formed in one end, close to the fixing part, of the sealing part, and the first annular groove and the liquid filling hole are coaxially arranged; the liquid filling hose further comprises a first sealing ring, and the first sealing ring is arranged in the first annular groove.

In an alternative embodiment, the side wall of the installation groove is provided with an annular limiting part, the annular limiting part is arranged at intervals with the bottom wall of the installation groove, and forms an installation space together with the side wall of the installation groove, and the installation space is used for installing and fixing the expansion sleeve of the pressurized filling device.

In an alternative embodiment, a clamping protrusion is arranged at one end of the sealing plug, which is far away from the filling hole, and a first clamping groove is formed in the sealing plug, the clamping protrusion is used for being matched with a first piston rod of the pressurized filling device in a clamping manner, and the first clamping groove is used for being matched with a second piston rod of the pressurized filling device in a clamping manner.

In a second aspect, the present invention provides a pressurized charging device for assembling a charging hose according to any one of the preceding embodiments, the pressurized charging device comprising:

the sealing sleeve is provided with a liquid filling cavity and a liquid outlet which are communicated, and is used for being in sealing contact with the outer wall of the hose body so as to enable the liquid outlet to be communicated with the liquid filling hole; the liquid filling cavity is used for accommodating the sealing plug, so that a sealing liquid filling space is formed among the sealing plug, the liquid filling cavity and the liquid filling hose;

the liquid injection connector is arranged on the sealing sleeve and communicated with the liquid filling cavity, and is used for externally connecting a liquid injector, so that liquid injected by the liquid injector is injected into the hose body through the liquid filling cavity, the liquid outlet and the liquid filling hole in sequence; and

the driving structure is arranged in the liquid filling cavity and is used for actuating the sealing plug to seal the liquid filling hole after liquid injection of the hose body is completed.

In an alternative embodiment, the pressurized liquid filling device further comprises an expansion sleeve and a first knob, wherein the expansion sleeve is sleeved on the sealing sleeve and is used for being clamped in the mounting groove of the liquid filling hose, and the first knob is sleeved on the sealing sleeve and the expansion sleeve at the same time and is in threaded connection with the expansion sleeve;

the first knob is used for rotating relative to the expansion sleeve and actuating the sealing sleeve to move so as to enable the sealing sleeve to be abutted to the mounting groove when the expansion sleeve is clamped to the mounting groove of the liquid filling hose.

In an alternative embodiment, the expansion sleeve comprises a threaded part and a plurality of expansion parts which are connected with the threaded part, and the threaded part is sleeved on the sealing sleeve and is in threaded connection with the first knob; the plurality of expansion parts are arranged at intervals along the circumferential direction of the sealing sleeve, and one part of the liquid injection joint is positioned between any two expansion parts and communicated with the liquid filling cavity.

In an alternative embodiment, the ends of the expansion parts, which are close to the liquid outlet, are respectively provided with a conical part, and the conical parts are used for being propped open by the sealing sleeve and propped against the mounting groove of the hose body under the condition that the first knob actuates the sealing sleeve to move.

In an alternative embodiment, the driving structure comprises a first piston rod and a second piston rod, wherein at least a part of the first piston rod is arranged in the liquid filling cavity and is used for being in clamping fit with the clamping protrusion of the sealing plug; the second piston rod penetrates through the first piston rod, and one end of the second piston rod extends out of the first piston rod and is used for being in clamping fit with the first clamping groove of the sealing plug.

In an alternative embodiment, the pressurized filling device further comprises a second knob and a third knob, wherein the second knob is sleeved on the first piston rod and is used for actuating the first piston rod and the sealing plug to rotate so as to enable the sealing plug to be tightly screwed and sealed with the filling hole;

the third knob is sleeved on the second piston rod and is used for actuating the second piston rod to rotate and move in a direction away from the sealing plug under the condition that the sealing plug and the liquid filling hole are tightly screwed and sealed, so that the second piston rod is separated from the sealing plug.

In a third aspect, the present invention provides a pressurized liquid charging method comprising:

establishing a sealed liquid filling space at the liquid filling hole of the hose body;

injecting liquid into the hose body through the liquid filling hole in a sealed environment, and filling and pressurizing;

and sealing the liquid filling hole by a sealing plug under the sealing belt pressure environment.

The beneficial effects of the embodiment of the invention include:

the liquid filling hose comprises a hose body and a sealing plug, wherein the hose body is provided with a liquid filling hole, and the sealing plug is used for sealing the liquid filling hole after liquid filling of the hose body is completed. The liquid is injected into the hose body through the liquid filling hole, and when the pressure value in the pipeline of the hose body reaches a preset pressure value, the sealing plug stretches into the liquid filling hole and is plugged, so that the balance of the internal pressure and the external pressure of the hose body is realized. That is, by adopting the liquid filling sealing mode, the sealing of the hose body can be realized by only using one sealing plug, the structure of the liquid filling hose is reduced, the operation is convenient, the production and manufacturing cost is reduced, and the sealing plug cannot interfere with other structures around the liquid filling hose after being arranged. Therefore, the liquid filling hose has the advantages of simple structure, convenient liquid filling operation, cost saving and no interference with other structures after liquid filling.

The pressurized liquid filling device is used for assembling a liquid filling hose and comprises a sealing sleeve, a liquid filling joint and a driving mechanism, wherein the sealing sleeve is provided with a liquid filling cavity and a liquid outlet which are communicated with each other, and the sealing sleeve is used for being in sealing contact with the outer wall of the hose body so as to enable the liquid outlet to be communicated with the liquid filling hole; the liquid filling cavity is used for accommodating the sealing plug, so that a sealing liquid filling space is formed among the sealing plug, the liquid filling cavity and the liquid filling hose; the liquid injection joint is arranged on the sealing sleeve and communicated with the liquid filling cavity, and is used for externally connecting a liquid injector, so that liquid injected by the liquid injector is injected into the hose body through the liquid filling cavity, the liquid outlet and the liquid filling hole in sequence; the driving structure is arranged in the liquid filling cavity and is used for actuating the sealing plug to seal the liquid filling hole after liquid injection of the hose body is completed. The pressurized liquid filling device is used for filling liquid into the hose body in a sealed environment, and then the sealing plug is actuated to seal the liquid filling hole, so that the liquid filling hose formed by assembly has the characteristics of simple structure and convenient liquid filling operation, the cost can be saved, and the liquid filling hose cannot interfere with other structures after liquid filling.

The pressurized liquid filling method comprises the following steps: establishing a sealed liquid filling space at the liquid filling hole of the hose body; under a sealed environment, injecting liquid into the hose body through the liquid filling hole, and filling and pressurizing; and sealing the liquid filling hole by the sealing plug under the sealing belt pressure environment. The liquid filling hose formed by the liquid filling method with pressure has the characteristics of simple structure and convenient liquid filling operation, can save cost, and can not interfere with other structures after being filled.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a liquid filled hose according to an embodiment of the present invention;

FIG. 2 is an exploded view of a liquid filled hose according to an embodiment of the present invention;

FIG. 3 is a schematic view of a pressurized fluid-filled device according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken along section A-A in FIG. 3;

FIG. 5 is a schematic view of a portion of a liquid filled hose according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a sealing plug according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of a sealing sleeve according to an embodiment of the present invention;

fig. 8 is a schematic structural view of an expansion shell according to an embodiment of the present invention;

FIG. 9 is an exploded view of a pressurized fluid-filled device according to an embodiment of the present invention;

FIG. 10 is a schematic diagram of a driving structure according to an embodiment of the present invention;

FIG. 11 is a schematic view of a pressurized fluid-filled apparatus for filling and sealing a hose body according to an embodiment of the present invention;

FIG. 12 is a schematic view of a pressurized fluid-filled apparatus for filling and sealing a hose body according to an embodiment of the present invention;

FIG. 13 is a cross-sectional view taken along section B-B in FIG. 12;

FIG. 14 is a block flow diagram of a pressurized fluid charging method according to an embodiment of the present invention.

Icon: 100-liquid filling hose; 110-hose body; 111-a liquid filling hole; 112-mounting slots; 113-an annular limiting part; 114-installation space; 120-sealing plugs; 121-a seal; 1211-a first annular groove; 122-a fixing part; 123-clamping protrusions; 124-a first clamping groove; 130-a first sealing ring; 200-a pressurized liquid filling device; 210-a sealing sleeve; 211-a liquid filling cavity; 212-a liquid outlet; 213-liquid inlet; 214-a second annular groove; 220-liquid injection joint; 230-a drive structure; 231-a first piston rod; 2311-a second clamping groove; 232-a second piston rod; 2321-a clip; 240-an expansion shell; 241-threaded portion; 242-expansion section; 2421-a taper; 251-first knob; 252-a second knob; 253-third knob; 261-first bolt; 262-a second bolt; 272-a second seal ring; 273-third seal ring; 274-fourth seal ring; 275-sealing sleeve; 280-snap spring.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

As described in the background art, in the conventional manner of filling a hose, a half of hydraulic connectors (male connector or female connector) are installed on a pipeline, and the other half of hydraulic connectors are installed on an external filling pipeline. However, by adopting the liquid filling mode, a male hydraulic connector or a female hydraulic connector needs to be reserved on a pipeline, the hydraulic connector is relatively large, and the hydraulic connector also needs to be provided with a corresponding protective cap structure to protect the internal structure of the hydraulic connector.

Based on this, referring to fig. 1-14, the embodiment of the invention provides a liquid filling hose 100, a liquid filling device 200 with pressure and a method thereof, which can effectively solve the above-mentioned technical problems, that is, the structure is simple, the liquid filling operation is convenient, the cost can be saved, and no interference with other structures is generated after liquid filling. The liquid charging hose 100, the pressurized liquid charging device 200 and the pressurized liquid charging method will be described in detail below.

Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a liquid filling hose 100 according to the present embodiment, fig. 2 is an exploded view of the liquid filling hose 100 according to the present embodiment, and referring to fig. 1 and 2, the liquid filling hose 100 includes a hose body 110 and a sealing plug 120, the hose body 110 is provided with a liquid filling hole 111, and the sealing plug 120 is used for sealing the liquid filling hole 111 after the liquid filling of the hose body 110 is completed. Liquid is injected into the hose body 110 through the liquid filling hole 111, and when the pressure value in the pipeline of the hose body 110 reaches a preset pressure value, the sealing plug 120 stretches into the liquid filling hole 111 and seals, so that the balance of the internal pressure and the external pressure of the hose body 110 is realized. That is, by adopting the liquid-filled sealing mode, the sealing of the hose body 110 can be realized by only using one sealing plug 120, the structure of the liquid-filled hose 100 is reduced, the operation is convenient, the production and manufacturing cost is reduced, and the sealing plug 120 cannot interfere with and affect other structures around the liquid-filled hose 100 after being arranged.

In order to assemble the hose body 110 with the sealing plug 120, please refer to fig. 3 and 4, fig. 3 is a schematic structural view of the pressurized filling apparatus 200 according to the present embodiment, fig. 4 is a sectional view of A-A in fig. 3, and fig. 3 and 4 are combined, the pressurized filling apparatus 200 is used for assembling the filling hose 100, that is, the sealing plug 120 can be used to seal the filling hole 111 in a pressurized environment, and the filling hose body 110 can be filled with liquid in a sealed environment.

Specifically, the pressurized filling device 200 includes a sealing sleeve 210, a filling joint 220, and a driving mechanism, where the sealing sleeve 210 is provided with a filling cavity 211 and a liquid outlet 212 that are communicated, and the sealing sleeve 210 is used to be abutted against the outer wall of the hose body 110 in a sealing manner so that the liquid outlet 212 is communicated with the filling hole 111; the charging chamber 211 is configured to receive the sealing plug 120 such that a sealed charging space is formed between the sealing plug 120, the charging chamber 211, and the charging hose 100; the liquid injection joint 220 is arranged on the sealing sleeve 210 and is communicated with the liquid filling cavity 211, and the liquid injection joint 220 is used for externally connecting a liquid injector, so that liquid injected by the liquid injector is injected into the hose body 110 through the liquid filling cavity 211, the liquid outlet 212 and the liquid filling hole 111 in sequence; the driving structure 230 is disposed in the filling cavity 211, and is used for actuating the sealing plug 120 to seal the filling hole 111 after the filling of the hose body 110 is completed.

Referring to fig. 2 and 4, in order to better install the sealing sleeve 210, in this embodiment, the hose body 110 is further provided with an installation groove 112, the installation groove 112 is communicated with the filling hole 111, the diameter of the installation groove 112 is larger than that of the filling hole 111, and the installation groove 112 is used for abutting and matching with the sealing sleeve 210 of the pressurized filling device 200. It will be readily appreciated that since the diameter of the mounting groove 112 is greater than the diameter of the fill hole 111, the sealing sleeve 210 can be secured to the bottom wall of the mounting groove 112, thereby sealing the sealing sleeve 210 to the mounting groove 112, while also enabling aligned communication of the liquid outlet 212 with the fill hole 111.

In order to better fix the sealing sleeve 210 to the hose body 110 before the pressurized filling, as shown in fig. 3 and 4, the pressurized filling apparatus 200 further includes an expansion sleeve 240 and a first knob 251, wherein the expansion sleeve 240 is sleeved on the sealing sleeve 210 and is used for being clamped to the mounting groove 112 of the filling hose 100, and as can be understood in conjunction with fig. 2, the mounting groove 112 is also used for mounting the expansion sleeve 240 of the pressurized filling apparatus 200; the first knob 251 is sleeved on the sealing sleeve 210 and the expansion sleeve 240 at the same time, and is in threaded connection with the expansion sleeve 240; the first knob 251 is configured to rotate relative to the expansion sleeve 240 and actuate the movement of the sealing sleeve 210 such that the sealing sleeve 210 abuts against the mounting groove 112 when the expansion sleeve 240 is engaged with the mounting groove 112 of the charging hose 100.

That is, when the pressurized filling device 200 is in the abutting operation with the hose body 110, the expansion sleeve 240 is first disposed in the mounting groove 112, and then the first knob 251 is rotated relative to the expansion sleeve 240, at this time, the sealing sleeve 210 is driven to move toward the filling hole 111, the bottom of the expansion sleeve 240 is stretched under the action of the sealing sleeve 210, so that the expansion sleeve 240 is abutted and fixed on the mounting groove 112, and the sealing sleeve 210 is sealed after contacting with the bottom wall of the mounting groove 112. By the fixing and sealing arrangement, the pressurized filling device 200 can be ensured to be more stable after being in butt joint with the hose body 110, and the stability of the subsequent pressurized filling process and sealing process can be improved.

Further, referring to fig. 5 and 6, fig. 5 is a schematic structural diagram of a portion of the liquid filling hose 100 provided in the present embodiment, fig. 6 is a schematic structural diagram of a sealing plug 120 provided in the present embodiment, and referring to fig. 5 and 6, the sealing plug 120 includes a sealing portion 121 and a fixing portion 122 connected to each other, the diameter of the fixing portion 122 is greater than that of the sealing portion 121, and the sealing portion 121 is configured to be disposed in the liquid filling hole 111 and cooperate with an inner wall of the liquid filling hole 111; the fixing portion 122 is configured to be abutted and fixed to the bottom wall of the mounting groove 112. As will be readily appreciated, the sealing portion 121 is engaged with the inner wall of the filling hole 111, thereby sealing the filling hole 111; meanwhile, the diameter of the fixing part 122 is larger than that of the sealing part 121, so that the limiting effect can be achieved, the sealing plug 120 is prevented from being completely arranged in the liquid filling hole 111, and after the liquid filling hose 100 is placed on the seabed in the follow-up process, the sealing plug 120 is pushed into the hose body 110 from the liquid filling hole 111 under the action of water pressure, so that the sealing effect on the liquid filling hole 111 is lost. In addition, since the fixing portion 122 also abuts against the bottom wall of the mounting groove 112, it can also perform a certain sealing function.

In this embodiment, the sealing portion 121 is in sealing engagement with the filling hole 111, specifically, threads are disposed on both the outer wall of the sealing portion 121 and the inner wall of the filling hole 111, and tightening and fixing of the sealing portion 121 and the filling hole 111 are achieved by means of threaded connection, so that sealing stability is improved; of course, in other embodiments, other mating methods may be used to seal the sealing portion 121 from the filling hole 111.

In addition, in order to further improve the sealing effect of the sealing plug 120, in this embodiment, a first annular groove 1211 is formed at an end of the sealing portion 121 near the fixing portion 122, and the first annular groove 1211 is coaxially disposed with the liquid filling hole 111; the charging hose 100 further comprises a first sealing ring 130, the first sealing ring 130 being arranged in the first annular groove 1211. That is, when the sealing portion 121 is screwed to the inner wall of the filling hole 111, the first seal ring 130 can elastically abut against the inner wall of the filling hole 111, so that the liquid in the hose body 110 is further prevented from flowing out of the sealing portion 121, and the sealing effect is improved.

Meanwhile, in order to improve the tightness between the sealing sleeve 210 and the bottom wall of the mounting groove 112, referring to fig. 7, fig. 7 is a schematic structural diagram of the sealing sleeve 210 provided in this embodiment, and in combination with fig. 7, a second annular groove 214 is further formed at one end of the sealing sleeve 210 near the liquid outlet 212, and the pressurized liquid filling device 200 further includes a second sealing ring 272, where the second sealing ring 272 is disposed in the second annular groove 214. When the sealing sleeve 210 is actuated and fixed in the mounting groove 112 by the first knob 251, the second seal ring 272 can also elastically abut against the bottom wall of the mounting groove 112, thereby further improving the sealing effect.

As shown in fig. 7, the sealing sleeve 210 is further provided with a liquid inlet 213, the liquid filling cavity 211 and the liquid outlet 212 are sequentially communicated, and the liquid filling joint 220 is communicated with the liquid inlet 213, so that the liquid of the external liquid filling device can be sequentially injected into the hose body 110 through the liquid filling joint 220, the liquid inlet 213, the liquid filling cavity 211, the liquid outlet 212 and the liquid filling hole 111.

Referring to fig. 2 and 5, the side wall of the mounting groove 112 is provided with an annular limiting portion 113, the annular limiting portion 113 is spaced from the bottom wall of the mounting groove 112, and forms a mounting space 114 together with the side wall of the mounting groove 112, and the mounting space 114 is used for mounting and fixing the expansion sleeve 240 of the pressurized filling device 200. As shown in fig. 5, by the arrangement of the annular limiting portion 113, the expansion sleeve 240 can be expanded under the supporting action of the sealing sleeve 210, and the bottom of the expansion sleeve is clamped into the mounting space 114, so that the stability of the expansion sleeve 240 is further improved, and the stability in the filling and sealing processes is further improved.

Specifically, referring to fig. 8, fig. 8 is a schematic structural diagram of an expansion sleeve 240 provided in the present embodiment, and referring to fig. 4 and 8, the expansion sleeve 240 includes a threaded portion 241 and a plurality of expansion portions 242 connected to the threaded portion 241, wherein the threaded portion 241 is sleeved on the sealing sleeve 210 and is in threaded connection with the first knob 251; the plurality of expansion portions 242 are arranged at intervals along the circumferential direction of the sealing sleeve 210, and a part of the liquid injection joint 220 is positioned between any two expansion portions 242 and is communicated with the liquid filling cavity 211, that is, the liquid inlet 213 of the sealing sleeve 210 is positioned between any two expansion portions 242. It is easy to understand that, by disposing the plurality of expansion portions 242 at intervals, the sealing sleeve 210 can simultaneously expand the plurality of expansion portions 242, that is, expand the plurality of expansion portions 242 toward the side wall of the mounting groove 112, so that the expansion portions 242 abut against the side wall of the mounting groove 112.

Further, the end of the plurality of expansion portions 242 near the liquid outlet 212 is provided with a tapered portion 2421, and the tapered portion 2421 is used to be expanded by the sealing sleeve 210 and abutted against the mounting groove 112 of the hose body 110 when the first knob 251 actuates the sealing sleeve 210 to move. Referring to fig. 5 and 8, the side wall of the installation groove 112 at the installation space 114 is also a tapered side wall, that is, the installation space 114 is also a tapered installation space 114, and the pressurized filling device 200 is preferably assembled and fixed with the hose body 110 by the cooperation of the tapered portion 2421 and the tapered installation space 114.

Referring to fig. 9 and 10, fig. 9 is an exploded view of the pressurized filling device 200 according to the present embodiment, fig. 10 is a schematic view of a driving structure 230 according to the present embodiment, and, with reference to fig. 9 and 10, the driving structure 230 includes a first piston rod 231 and a second piston rod 232, at least a portion of the first piston rod 231 is disposed in the filling cavity 211 and is used for being detachably connected with the sealing plug 120; the second piston rod 232 is disposed through the first piston rod 231, and one end of the second piston rod 232 extends out from the first piston rod 231 and is detachably connected to the sealing plug 120.

Specifically, referring to fig. 6 and 10, a clamping protrusion 123 and a first clamping groove 124 are provided at an end of the sealing plug 120 away from the filling hole 111, where the clamping protrusion 123 is used for clamping and matching with a first piston rod 231 of the pressurized filling device 200; in detail, the first piston rod 231 is provided with a second clamping groove 2311, and the second clamping groove 2311 is used for being matched with the clamping protrusion 123 in a clamping manner. The first clamping groove 124 is configured to be in clamping fit with the second piston rod 232 of the pressurized liquid filling device 200, and in detail, one end of the second piston rod 232, which is close to the second clamping groove 2311, is provided with a clamping portion 2321, where the clamping portion 2321 is configured to be in clamping fit with the first clamping groove 124.

After the expansion sleeve 240 and the sealing sleeve 210 are disposed in the mounting groove 112, the clamping portion 2321 of the second piston rod 232 needs to be clamped in the first clamping groove 124 of the sealing plug 120, and the sealing plug 120 is pulled up, so that the clamping protrusion 123 of the sealing plug 120 is clamped in the second clamping groove of the first piston rod 231, thereby forming a sealed filling space between the sealing plug 120, the filling cavity 211 and the hose body 110, and then the filling connector 220 is externally connected with a filling device, so that the liquid is filled into the hose body 110. When the filling is completed, the first piston rod 231 is rotated, so that the sealing plug 120 is rotationally screwed into the filling hole 111, that is, the sealing portion 121 of the sealing plug 120 is in threaded engagement with the inner wall of the filling hole 111, thereby sealing the filling hole 111.

With continued reference to fig. 6 and 10, it should be noted that, in the present embodiment, the shape of the clamping protrusion 123 is a "straight shape", and the shape of the second clamping groove matching the clamping protrusion is also a "straight shape", which can facilitate the rapid assembly of the first piston rod 231 and the sealing plug 120; of course, in other embodiments, the shape of the engaging protrusion 123 may be a "cross" shape, and the shape of the second engaging groove that matches the shape of the engaging protrusion may be a "cross" shape.

Further, to facilitate operation of the first piston rod 231 and the second piston rod 232, the pressurized fluid charging apparatus 200 further includes a second knob 252 and a third knob 253, where the second knob 252 is sleeved on the first piston rod 231 and is used to actuate the first piston rod 231 and the sealing plug 120 to rotate so as to tightly seal the sealing plug 120 with the fluid charging hole 111; the third knob 253 is sleeved on the second piston rod 232, and is used for actuating the second piston rod 232 to rotate and move in a direction away from the sealing plug 120 so as to separate the second piston rod 232 from the sealing plug 120 when the sealing plug 120 is tightly screwed with the liquid filling hole 111.

In order to facilitate the fixation of the second knob 252 and the third knob 253, referring to fig. 4, the pressurized liquid charging apparatus 200 further includes a first bolt 261 and a second bolt 262, the second knob 252 is connected with the first piston rod 231 through the first bolt 261, and the third knob 253 is connected with the second piston rod 232 through the second bolt 262.

Referring to fig. 4 and 9, since a portion of the first piston rod 231 is disposed in the filling chamber 211 and a portion of the second piston rod 232 is disposed in the first piston rod 231, in order to further improve the sealing performance, in the present embodiment, the pressurized filling device 200 further includes a third sealing ring 273 and a fourth sealing ring 274, and the third sealing ring 273 is sleeved on the first piston rod 231 and abuts against the inner wall of the filling chamber 211; the fourth sealing ring 274 is sleeved on the second piston rod 232 and abuts against the inner wall of the first piston rod 231.

With continued reference to fig. 4, in order to prevent the fourth sealing ring 274 from moving, the pressurized liquid filling apparatus 200 further includes a sealing sleeve 275, where the sealing sleeve 275 is sleeved on the second piston rod 232 and is located on a side of the fourth sealing ring 274 away from the liquid outlet 212 and abuts against an inner wall of the first piston rod 231. Thereby preventing the fourth seal ring 274 from moving and further improving the sealing effect; in addition, because the diameter of the second piston rod 232 is smaller, if the ring groove for installing the fourth sealing ring 274 is directly formed in the outer wall of the second piston rod 232, the processing is difficult, so that the through groove can be formed in the outer wall of the second piston rod 232, and the fourth sealing ring 274 and the sealing sleeve 275 can be simultaneously placed, thereby being convenient to process and improving the production and manufacturing efficiency.

With continued reference to fig. 9, in order to better drive the sealing sleeve 210 to move upwards, the pressurized filling device 200 further includes a clamp spring 280, where the clamp spring 280 is disposed at an end of the sealing sleeve 210 away from the first knob 251 and is used for abutting against the first knob 251, so that when the first knob 251 rotates reversely, the clamp spring 280 abuts against the first knob 251, and thus the sealing sleeve 210 is driven to move upwards by the clamp spring 280, and then the sealing sleeve 210 is separated from the expansion sleeve 240, so as to complete the subsequent evacuation operation of the pressurized filling device 200.

With continued reference to fig. 4 and 8, since the liquid injection joint 220 is located between any two expansion portions 242 and is in communication with the liquid filling cavity 211 through the liquid inlet 213, that is, the liquid injection joint 220 is clamped between the two expansion portions 242; in this way, the sealing sleeve 210 can be limited in the circumferential direction, so that the sealing sleeve 210 is prevented from rotating along with the rotation of the first knob 251; in addition, the seal sleeve 210 can be limited in the axial direction, and when the pressurized filling device 200 is not assembled with the filling hose 100, if the first knob 251 is rotated to perform the screwing, the seal sleeve 210 can be prevented from falling out, and the function of fixing the seal sleeve 210 can be achieved.

Referring to fig. 11-13, fig. 11 is a schematic view illustrating a first view of the pressurized filling device 200 according to the present embodiment for filling and sealing the hose body 110, fig. 12 is a schematic view illustrating a second view of the pressurized filling device 200 according to the present embodiment for filling and sealing the hose body 110, fig. 13 is a cross-sectional view of B-B in fig. 12, and the working principle of the pressurized filling device 200 will be described with reference to fig. 11-13:

and (3) mounting operation: firstly, the second piston rod 232 and the sealing plug 120 are assembled, namely the clamping part 2321 is clamped in the first clamping groove 124, and then the assembled second piston rod 232 and the sealing plug 120 are integrally arranged in the first piston rod 231, so that an integral structure is formed in the sealing sleeve 210, namely the sealing plug is arranged in the liquid filling cavity 211; then, the first knob 251 is rotated relative to the expansion sleeve 240, and at this time, the injection joint 220 is held by one hand and is fixed, and the first knob 251 is rotated by the other hand, so that the sealing sleeve 210 is driven to move towards the filling hole 111; the expansion sleeve 240 is expanded during the movement of the sealing sleeve 210, so that the conical portion 2421 is clamped in the installation space 114, and the second sealing ring 272 on the sealing sleeve 210 is elastically abutted against the bottom wall of the installation groove 112, so as to realize sealing. At this time, a sealed liquid-filled space is formed between the sealing plug 120, the liquid-filled cavity 211 and the hose body 110.

Liquid filling operation: the liquid is injected into the hose body 110 through the liquid injection connector 220 externally connected with a liquid injector, and sequentially passes through the liquid injection connector 220, the liquid inlet 213, the liquid filling cavity 211, the liquid outlet 212 and the liquid filling hole 111, and the whole liquid filling process is performed in a sealed environment.

Plugging operation: under sealed and pressurized environments, the second knob 252 is rotated to drive the first piston rod 231, so that the sealing plug 120 is rotationally screwed into the liquid filling hole 111, that is, the sealing portion 121 of the sealing plug 120 is in threaded fit with the inner wall of the liquid filling hole 111, and meanwhile, the first sealing ring 130 is elastically abutted against the inner wall of the liquid filling hole 111 to realize sealing of the liquid filling hole 111, so that the liquid filling hose 100 is assembled.

Evacuation operation: firstly, the pressure in the liquid filling cavity 211 is relieved, and then the first knob 251 is reversely rotated to drive the sealing sleeve 210 to move upwards, so that the expansion sleeve 240 is contracted along with the upward movement of the sealing sleeve 210, namely, the conical part 2421 is separated from the conical installation space 114; then, the second knob 252 is held, the third knob 253 is rotated in the opposite direction, and the second piston rod 232 is withdrawn from the first piston rod 231, thereby withdrawing the entire pressurized fluid-filled device 200 from the fluid-filled hose 100.

Referring to fig. 14, fig. 14 is a flow chart of a method for filling liquid under pressure according to the present embodiment, and in combination with fig. 14, the method for filling liquid under pressure includes:

step S100: creating a sealed charge space at the charge port 111 of the hose body 110;

step S200: in a sealed environment, liquid is injected into the hose body 110 through the liquid filling hole 111 to carry out liquid filling and pressurizing;

step S300: under the sealing pressure environment, the sealing plug 120 seals the liquid filling hole 111.

It should be noted that, the filling and pressurizing performed in step S200 needs to set a pressure value of the seabed applied by the actual filling hose 100, that is, a preset pressure value, and then detect the pressure value in the hose body 110 in real time by the pressure detecting device, and screw the sealing plug 120 into the filling hole 111 when the pressure value is equal to the preset pressure value, so as to complete the sealing operation.

In addition, the method of filling liquid under pressure may be implemented by the apparatus 200 for filling liquid under pressure provided in this embodiment, however, in other embodiments, the sealing environment of the hose body 110 is established, and the sealing plug 120 may be plugged by other devices, so long as the installation of the liquid filling hose 100 can be implemented.

In summary, the embodiment of the present invention provides a pressurized filling apparatus 200, a device and a method, where the filling hose 100 includes a hose body 110 and a sealing plug 120, the hose body 110 is provided with a filling hole 111, and the sealing plug 120 is used for sealing the filling hole 111 after the filling of the hose body 110 is completed. Liquid is injected into the hose body 110 through the liquid filling hole 111, and when the pressure value in the pipeline of the hose body 110 reaches a preset pressure value, the sealing plug 120 stretches into the liquid filling hole 111 and seals, so that the balance of the internal pressure and the external pressure of the hose body 110 is realized. That is, by adopting the liquid filling sealing mode, only one sealing plug 120 is needed to seal the hose body 110, the structure of the liquid filling hose 100 is reduced, the operation is convenient, the production and manufacturing cost is reduced, and the sealing plug 120 is not interfered and influenced by other structures around the liquid filling hose 100 after being arranged.

Therefore, the liquid filling hose 100 has a simple structure, is convenient to fill liquid, can save cost, and does not interfere with other structures after the liquid filling hose 100 is filled with liquid.

The pressurized filling device 200 is used for assembling a filling hose 100, and comprises a sealing sleeve 210, a filling joint 220 and a driving mechanism, wherein the sealing sleeve 210 is provided with a filling cavity 211 and a liquid outlet 212 which are communicated, and the sealing sleeve 210 is used for being in sealing contact with the outer wall of the hose body 110 so as to enable the liquid outlet 212 to be communicated with the filling hole 111; the charging chamber 211 is configured to receive the sealing plug 120 such that a sealed charging space is formed between the sealing plug 120, the charging chamber 211, and the charging hose 100; the liquid injection joint 220 is arranged on the sealing sleeve 210 and is communicated with the liquid filling cavity 211, and the liquid injection joint 220 is used for externally connecting a liquid injector, so that liquid injected by the liquid injector is injected into the hose body 110 through the liquid filling cavity 211, the liquid outlet 212 and the liquid filling hole 111 in sequence; the driving structure 230 is disposed in the filling cavity 211, and is used for actuating the sealing plug 120 to seal the filling hole 111 after the filling of the hose body 110 is completed. The pressurized liquid filling device 200 fills the liquid in the hose body 110 in a sealed environment, and then actuates the sealing plug 120 to seal the liquid filling hole 111, so that the liquid filling hose 100 formed by assembly also has the characteristics of simple structure and convenient liquid filling operation, the cost can be saved, and the liquid filling hose 100 can not interfere with other structures after liquid filling.

The pressurized liquid filling method comprises the following steps: creating a sealed charge space at the charge port 111 of the hose body 110; in a sealed environment, liquid is injected into the hose body 110 through the liquid filling hole 111 to carry out liquid filling and pressurizing; under the sealing pressure environment, the sealing plug 120 seals the liquid filling hole 111. The liquid filling hose 100 formed by the method for filling liquid under pressure also has the characteristics of simple structure and convenient liquid filling operation, can save cost, and can not interfere with other structures after the liquid filling hose 100 is filled with liquid.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A liquid filled hose comprising:

a hose body (110), wherein the hose body (110) is provided with a liquid filling hole (111); and

and the sealing plug (120) is used for sealing the liquid filling hole (111) after the liquid filling of the hose body (110) is completed.

2. The liquid filling hose according to claim 1, wherein the hose body (110) is further provided with a mounting groove (112), the mounting groove (112) is communicated with the liquid filling hole (111), the diameter of the mounting groove (112) is larger than that of the liquid filling hole (111), and the mounting groove (112) is used for mounting an expansion sleeve (240) of the liquid filling device (200) under pressure and is used for abutting fit with a sealing sleeve (210) of the liquid filling device (200) under pressure.

3. The liquid filled hose according to claim 2, wherein the sealing plug (120) comprises a sealing portion (121) and a fixing portion (122) connected, the fixing portion (122) having a diameter larger than that of the sealing portion (121), the sealing portion (121) being configured to be disposed in the liquid filled hole (111) and to be engaged with an inner wall of the liquid filled hole (111); the fixing part (122) is used for abutting and fixing the bottom wall of the mounting groove (112).

4. A liquid filled hose according to claim 3, wherein a first annular groove (1211) is provided at an end of the sealing portion (121) adjacent to the fixing portion (122), the first annular groove (1211) being coaxially arranged with the liquid filled hole (111); the charging hose (100) further comprises a first sealing ring (130), wherein the first sealing ring (130) is arranged in the first annular groove (1211).

5. The liquid filling hose according to claim 1, wherein one end of the sealing plug (120) away from the liquid filling hole (111) is provided with a clamping protrusion (123) and a first clamping groove (124), the clamping protrusion (123) is used for being in clamping fit with a first piston rod (231) of the liquid filling device (200) under pressure, and the first clamping groove (124) is used for being in clamping fit with a second piston rod (232) of the liquid filling device (200) under pressure.

6. A pressurized charging device for assembling a charging hose (100) according to any one of claims 1-5, characterized in that the pressurized charging device (200) comprises:

a sealing sleeve (210), wherein the sealing sleeve (210) is provided with a liquid filling cavity (211) and a liquid outlet (212) which are communicated, and the sealing sleeve (210) is used for being in sealing contact with the outer wall of the hose body (110) so as to enable the liquid outlet (212) to be communicated with the liquid filling hole (111); the charging cavity (211) is used for accommodating the sealing plug (120) so that a sealed charging space is formed among the sealing plug (120), the charging cavity (211) and the charging hose (100);

the liquid injection joint (220) is arranged on the sealing sleeve (210) and is communicated with the liquid filling cavity (211), and the liquid injection joint (220) is used for externally connecting a liquid injector, so that liquid injected by the liquid injector is sequentially injected into the hose body (110) through the liquid filling cavity (211), the liquid outlet (212) and the liquid filling hole (111); and

and the driving structure (230) is arranged in the liquid filling cavity (211) and is used for actuating the sealing plug (120) to seal the liquid filling hole (111) after the liquid filling of the hose body (110) is completed.

7. The pressurized fluid-filled apparatus according to claim 6, wherein said pressurized fluid-filled apparatus (200) further comprises an expansion sleeve (240) and a first knob (251), said expansion sleeve (240) being sleeved on said sealing sleeve (210) and adapted to be snapped into a mounting groove (112) of said fluid-filled hose (100), said first knob (251) being simultaneously sleeved on said sealing sleeve (210) and said expansion sleeve (240) and being threadedly connected to said expansion sleeve (240);

the first knob (251) is used for rotating relative to the expansion sleeve (240) and actuating the sealing sleeve (210) to move so that the sealing sleeve (210) abuts against the mounting groove (112) when the expansion sleeve (240) is clamped with the mounting groove (112) of the liquid filling hose (100).

8. The pressurized fluid-filled apparatus according to claim 6, wherein said drive structure (230) comprises a first piston rod (231) and a second piston rod (232), at least a portion of said first piston rod (231) being disposed in said fluid-filled chamber (211) and adapted to be in snap-fit with a snap-fit protrusion (123) of said sealing plug (120); the second piston rod (232) is arranged on the first piston rod (231) in a penetrating mode, one end of the second piston rod (232) extends out of the first piston rod (231) and is used for being matched with the first clamping groove (124) of the sealing plug (120) in a clamping mode.

9. The pressurized fluid-filled apparatus according to claim 8, wherein the pressurized fluid-filled apparatus (200) further comprises a second knob (252) and a third knob (253), the second knob (252) being sleeved on the first piston rod (231) and being used for actuating the first piston rod (231) and the sealing plug (120) to rotate so as to screw the sealing plug (120) tightly against the fluid-filled hole (111);

the third knob (253) is sleeved on the second piston rod (232), and is used for actuating the second piston rod (232) to rotate and move in a direction away from the sealing plug (120) under the condition that the sealing plug (120) and the liquid filling hole (111) are tightly screwed, so that the second piston rod (232) is separated from the sealing plug (120).

10. A method of charging liquid under pressure, the method comprising:

establishing a sealed charging space at the charging hole (111) of the hose body (110);

injecting liquid into the hose body (110) through the liquid filling hole (111) in a sealed environment, and filling and pressurizing;

and sealing the liquid filling hole (111) by a sealing plug (120) under the sealing pressure environment.