CN207087291U - A kind of anti-pollution changing-over instrument of underwater multiplex hydraulic pressure operated by ROV - Google Patents

Abstract

The utility model provides an underwater multi-channel hydraulic anti-pollution switching tool operated by an ROV, which comprises a male head assembly, a female head assembly, an ROV operating handle and a support frame. The male assembly and the female assembly are docked under the guidance of the male shell and the female shell, the cylindrical pin and the guide column; the ROV manipulator switches the male assembly and the female assembly through the ROV handle; The female head assembly is mounted on the ROV body through the support frame. The utility model can realize simultaneous movement of multi-way joints, effectively reducing the possibility of interference between pipelines. The two-stage docking method is adopted, and the rough alignment is carried out through the outer shell first, and then the precise alignment is carried out through the guide column and the cylindrical pin.

Description

An underwater multi-channel hydraulic anti-pollution switching tool operated by ROV

technical field

The utility model relates to an underwater switching tool, in particular to an underwater multi-channel hydraulic anti-pollution switching tool operated by an ROV.

Background technique

The underwater connection tool is a kind of equipment equipped in the underwater operation system and widely used in marine engineering. The development of the underwater operation system enables the underwater robot (ROV) to carry a variety of underwater tools during one voyage to complete different underwater operation tasks, avoiding wasting limited time on the round-trip replacement of operating tools, and improves the underwater efficiency. Robotic productivity. At present, there is no underwater connection tool directly held by ROV manipulators in China. The existing switching tools have a series of problems such as low switching efficiency and high failure rate. These problems reduce work efficiency, increase costs, and also affect work progress.

Contents of the invention

The purpose of this utility model is to provide an underwater multi-channel hydraulic anti-pollution switching tool operated by ROV, which can realize rapid installation and separation of underwater working tools, and has simple structure, reliable sealing performance, convenient operation, and At the same time, it can withstand internal and external pressure and is suitable for marine engineering environments.

The purpose of this utility model is achieved in this way: it includes a male assembly, a female assembly, and a support frame. The male assembly includes a male shell, a male body disposed in the male shell, and a male The male housing at the lower end of the main body, the male piston disposed inside the lower end of the male housing, the male spring disposed in the vertical hole in the male body, the two ends of the male spring are respectively connected to the vertical hole and the male The male head is connected to the piston, and the main body of the male head is also provided with a locking groove. The male head piston is provided with a male head oil port, and the inner surface of the lower end of the male head housing is provided with a guiding bevel; the female head assembly includes a female head The outer casing, the female inner casing arranged in the female outer casing, the female main body arranged in the female inner casing, the female guide sleeve connected with the female inner casing, the female stop sleeve, the female piston, Hydraulic cylinder, the main body of the female head is provided with an axial through hole, and the outer surface of the main body of the female head is symmetrically provided with three locking inclined-plane columns, and the three locking inclined-plane columns extend into the outer shell of the female head and the inner shell of the female head In between, three locking holes are arranged symmetrically on the outer surface of the inner shell of the female head, and each locking hole is provided with a locking spring and a locking column. Tight groove fit, the outer surface of the female guide sleeve is provided with a slope that matches the guide groove, the female head body is provided with a female oil hole that communicates with the through hole in the circumferential direction, and the lower end of the through hole is connected with a plug through an internal thread. The plug is set until the female head is connected to the ejector rod, the female head retaining sleeve is arranged on the upper end of the female head main body, and the female head piston is pressed against the female head retaining sleeve by the pre-tightening force of the female head spring. The front end cover of the hydraulic cylinder is fixedly connected to the lower end of the main body of the female head, the front end cover of the hydraulic cylinder is connected to the cylinder body, the end of the cylinder body is connected to the rear end cover of the hydraulic cylinder, and the front end cover of the hydraulic cylinder and the rear end cover of the hydraulic cylinder Interconnected oil ports and oil passages are arranged respectively, the end of the piston rod of the hydraulic cylinder is connected with the casing of the hydraulic cylinder, the piston of the hydraulic cylinder is arranged in the cylinder body, and the lower part of the female guide sleeve is set on the casing of the hydraulic cylinder , the hydraulic cylinder casing is arranged on the support frame.

The utility model also includes such structural features:

1. The main body of the male head is also provided with a vertical cylindrical pin that acts as an axial guide, and there are two cylindrical pins, and the main body of the female head is provided with two round holes that cooperate with the cylindrical pins;

The male head assembly also includes a guide post, and the guide post passes through the male head shell and is connected to the male head main body through an interference fit, and the upper end of the female head outer shell and the upper end of the female head inner shell are respectively provided with guide posts to cooperate with the guide post. U-shaped groove.

2. The number of the male housing, the male piston, the male spring, the male oil hole, the female retainer, the female piston, the female spring, the through hole, and the female oil hole is equal, preferably four.

3. Sealing rings are respectively provided at the connection between the male body and the male housing, the connection between the male piston and the male housing, and the connection between the plug and the female body.

4. The male housing is also provided with an ROV operating handle mounting plate, and the ROV operating handle mounting plate is provided with an ROV operating hand for connecting with the ROV.

Compared with the prior art, the beneficial effect of the utility model is: the locking process of the utility model is carried out synchronously during the docking process of the male assembly and the female assembly; the locking process is pushed by the hydraulic cylinder on the female assembly The locking slope, squeeze the locking column, and press it into the locking groove in the male head assembly to complete the locking action; when unlocking, the hydraulic cylinder moves in the opposite direction, and the locking column automatically exits the locking groove through the spring to complete the unlocking action.

The utility model realizes the underwater switching tool operated by the ROV manipulator, and realizes the underwater multi-channel hydraulic connection; adopts the one-way valve structure, which can effectively prevent seawater pollution; realizes the automatic unlocking process, and is simple and convenient in structure ;Adopting the movement form of fixed piston rod and moving hydraulic cylinder, it can realize simultaneous movement of multi-way joints, effectively reducing the possibility of interference between pipelines. The two-stage docking method is adopted, and the rough alignment is carried out through the outer shell first, and then the precise alignment is carried out through the guide column and the cylindrical pin.

Description of drawings

Fig. 1 is the front view of the male head assembly of the present utility model;

Fig. 2 is a bottom view of the male head assembly of the present utility model;

Fig. 3 is the front view of the female head assembly of the present utility model;

Fig. 4 is a partial view of the female head assembly of the present utility model;

Fig. 5 is a second partial view of the female assembly of the utility model;

Fig. 6 is a schematic cross-sectional view of the oil passage and the oil inlet of the female head assembly of the present invention;

Fig. 7 is a schematic diagram of the supporting structure of the utility model;

Fig. 8 is a schematic diagram illustrating the docking process of the present invention;

Fig. 9 is a schematic diagram of the completion of docking of the utility model;

Fig. 10 is a schematic diagram of the overall structure of the utility model.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

As shown in Figure 1 and Figure 2, a male assembly L in an underwater multi-channel hydraulic anti-pollution transfer tool operated by an ROV includes: a guide column 1, a male body 2, a male housing 3, and a screw 4 , Male spring 5, screw 6, male housing sealing ring 7, male housing 8, male piston sealing ring 9, male piston 10, cylindrical pin 11. The male housing 8 has a guide bevel 54, which acts as a guide during the docking process to achieve coarse alignment; the male main body 2 is connected to the male housing 8 with screws 4; the male main body 2 is provided with a lock Tight groove 55; the male housing is connected to the male main body 2 by screws 6; the male housing 8 and the male main body 2 are sealed by the male housing sealing ring 7; the male piston 10 relies on the pre-load provided by the male spring 5 It is pressed against the male housing 8 to form a structure similar to a one-way valve; the male piston 10 has an oil port, and after the male assembly L and the female assembly R are docked, a hydraulic oil can be formed. Road; between the male piston 10 and the male housing 8, there is a male piston sealing ring 9 for sealing; the guide column 1 passes through the male housing 3, and is connected to the male main body 2 through interference fit, Play a circumferential guiding role during the docking process; the cylindrical pin 11 is connected to the main body of the male head through an interference fit, and play an axial guiding role during the docking process.

As shown in Figure 3, Figure 4, and Figure 5, the female head assembly R includes: screws 12, female head outer shell 13, female head locking spring 14, locking column 15, female head inner shell 16, female head ejector rod Sealing ring 17, female stop sleeve seal ring 18, female stop sleeve 19, screw 20, female spring 21, female piston seal ring 22, female piston 23, female butt joint ejector rod 24, female main body 25, Plug sealing ring 26, plug 27, female guide sleeve 28, screw 29, spring washer 30, hydraulic cylinder front cover 31, wear-resistant ring 32, piston 33, piston sealing ring 34, cylinder body 35, piston end cover seal Ring 36, hydraulic cylinder rear end cover 37, piston rod sealing ring one 38, piston rod sealing ring two 39, piston rod 40, screw 41 hydraulic cylinder housing 42.

The female outer shell 13 is connected to the female inner shell 16 by screws 12; the front ends of the female outer shell 13 and the female inner shell 16 are both provided with a U-shaped groove 56, which is used to accommodate the guide during the docking process. Column 1 plays a guiding role; the female inner housing 16 is sleeved on the female main body 25, and is connected with the female guide sleeve 28 through a screw 44; the female inner housing 16 has a locking hole 58 for To accommodate the locking column 15; during the docking process, the locking slope 57 on the female head body presses down the locking column 15, and presses into the corresponding locking groove 55 on the male body 2 to achieve locking; Tight column 15 realizes unlocking by locking spring 14; Described female head stopper 19 is connected on the female head main body 25 by screw 20; Female head main body 25 has through hole H (1, 2, 3, 4); There are corresponding oil ports K (1, 2, 3, 4) on the main body 25 of the head to communicate with it; the end of the through hole is provided with an internal thread 60, and the plug 27 is connected through the internal thread 60, and screwed into the through hole H (1, 2 , 3, 4) end; Plug 27 and female head main body 25 are sealed by plug sealing ring 26; Plug 27 is provided with threaded hole 59; Described female butt joint ejector rod 24 is connected with plug by thread 59 27 connection; the female head piston 23 is pressed on the female head stop sleeve 19 by the pre-tightening force of the female head spring 21; the female head stop sleeve 19, the female head piston 23, the female head butt joint ejector rod 24, the female head main body 25 are all sealed with sealing rings; the main body of the female head is provided with a threaded hole 61 for handling. The front end cover 31 of the hydraulic cylinder is connected to the main body 25 of the female head through a screw 29, and the front end cover 31 has an oil port K5 and an oil passage H5; the cylinder body 35 is connected to the front end 31 cover of the hydraulic cylinder through a screw 43; the hydraulic cylinder The rear end cover 37 is connected to the cylinder body 35 through screws 43, and the rear end cover 37 is provided with an oil port K6 and an oil passage H6; Cover sealing ring 36 is sealed; piston rod 40 and hydraulic cylinder front end cover 31 and rear end cover 37 are sealed; between the front piston rod and hydraulic cylinder front end cover is piston rod sealing ring one 38, and the rear piston rod and hydraulic cylinder rear end cover Between piston rod seal ring 1 38 and piston rod seal ring 2 39 seals; piston seal ring 34 is arranged between the piston and the cylinder block; wear-resistant ring 32 is arranged on the piston; rear piston rod is connected with hydraulic cylinder shell 42 by screw 41; The female guide sleeve 28 is sleeved on the hydraulic cylinder housing 42 .

As shown in FIG. 7 , the support structure includes: a support plate 49 , a support base 50 , screws 51 , support blocks 52 and screws 53 . The support plate 49 is connected to the ROV body by bolts; the support plate 49 is connected to the support block 52 by screws 51; the support block 52 is connected to the female head assembly R by screws 53, and the support seat 50 is placed under the female head assembly R. The supporting base 50 is connected with the ROV body by bolts.

As shown in FIG. 10 , an ROV operating handle mounting plate 47 is disposed on the male housing of the present invention, and an ROV operating handle 46 for connecting with the ROV is disposed on the ROV operating handle mounting plate.

As shown in Figure 8, the switching process of the utility model is as follows: the ROV manipulator clamps the ROV operating handle 46, and moves the male assembly L to the vicinity of the female assembly R; the male housing 3 is gradually inserted into the female housing 13 , roughly positioning through the guide groove 54; as the male assembly L and the female assembly R approach each other, the fluid existing between them is squeezed away; during the approach process, the cylindrical pin 11 and the guide pin 1 Accurate positioning; close to the process until the female head shell 13 touches the boss of the male head body 2; the hydraulic cylinder pushes the female head, the female head piston 23 contacts the male head shell 8, and the female head piston 23 moves backward; the female head butts the top The rod 24 is in contact with the male piston 10, and the male piston 10 moves backward; both the male oil passage and the female oil passage are opened to realize the hydraulic connection between the male and female; the hydraulic cylinder pushes the female, and the female The pressing slope on the main body 25 presses the locking column 15 into the locking groove of the male head main body 2 to realize locking; the ROV manipulator releases the ROV operating handle 46 to complete the switching process. The completion process is shown in Figure 9.

1 to 10, the ROV-operated underwater multi-channel hydraulic anti-pollution switching tool of the present utility model includes a male assembly, a female assembly, an ROV operating handle and a support frame. The male head assembly includes a guide post, a male head body, a male head shell, a male head spring, a male head shell sealing ring, a male head shell, a male head piston, a male head piston sealing ring, and a cylindrical pin. The female head assembly includes the female head outer shell, the female head locking spring, the locking column, the female head inner shell, the front end cover of the hydraulic cylinder, the piston, the cylinder body, the rear end cover of the hydraulic cylinder, the piston rod, the hydraulic cylinder shell, the female head Head rod sealing ring, female retaining sleeve sealing ring, female retaining sleeve, female piston sealing ring, female piston, female spring, female guide sleeve, female butt joint ejector rod, piston front cover sealing ring, piston rear End cover sealing ring, wear ring, piston sealing ring, piston rod sealing ring 1, piston rod sealing ring 2. The ROV operating handle includes an ROV operating handle and an ROV operating handle mounting plate. The support frame includes a support plate, a support frame and a support block.

The male housing has guiding grooves, which play a guiding role in the docking process to achieve coarse alignment; the male body is connected to the male housing with screws; the male body is provided with a lock Tight groove; the male housing is connected to the male main body by screws; the male housing and the male main body are sealed by a sealing ring; the male piston is pressed against the male housing by the pre-tightening force provided by the spring to form Similar to the one-way valve structure; there is an oil port on the male piston, and after the male assembly and the female assembly are docked, a hydraulic oil circuit can be formed; there is a sealing ring between the male piston and the male housing for sealing; The guide post passes through the male housing and is connected to the male body through interference fit, and plays a circumferential guiding role during the docking process; the cylindrical pin is connected to the male body through interference fit , play an axial guiding role during the docking process.

The outer shell of the female head is connected to the inner shell of the female head by screws; the front ends of the outer shell of the female head and the inner shell of the female head are both provided with U-shaped grooves, which are used to accommodate the guide column during the docking process and play a guiding role; The inner shell of the female head is sleeved on the main body of the female head, and the inner shell of the female head is connected with the guide sleeve of the female head through screws; the inner shell of the female head is provided with a locking hole for accommodating the locking column; the docking process Among them, the locking slope on the main body of the female head presses down the locking post and presses it into the corresponding locking groove on the main body of the male head to realize locking; the locking post is unlocked by the locking spring; the female The head retaining sleeve is connected to the main body of the female head by screws; the main body of the female head has a through hole; the main body of the female head has a corresponding oil port to communicate with it; The end of the through hole; the plug and the main body of the female head are sealed by a sealing ring; the plug is provided with a threaded hole; the female butt joint ejector rod is connected with the plug through a threaded connection; the female piston is pre-loaded by a spring The tight force is pressed on the female retaining sleeve; the female retaining sleeve, the female piston, the female butt joint ejector rod, and the female main body are all sealed with sealing rings; the female main body is provided with threaded holes for handling .

The front end cover of the hydraulic cylinder is connected to the main body of the female head by screws, and an oil port and an oil passage are opened on the front end cover; the cylinder body is connected to the front end cover of the hydraulic cylinder by screws; the rear end cover of the hydraulic cylinder is connected to the cylinder body by screws , there are oil ports and oil passages on the rear end cover; there are seals between the front end cover of the hydraulic cylinder, the rear end cover of the hydraulic cylinder and the cylinder body; the piston rod and the front end cover and rear end cover of the hydraulic cylinder are sealed; the front piston rod There is a tie rod seal between the front end cover and the hydraulic cylinder, a tie rod seal and a star ring seal between the rear piston rod and the rear end cover of the hydraulic cylinder; there is a Stretch seal between the piston and the cylinder body; there is a wear-resistant ring on the piston; the rear piston rod It is connected with the shell of the hydraulic cylinder through screws; the female guide sleeve is sleeved on the shell of the hydraulic cylinder.

The ROV operating handle mounting plate is connected to the male shell through screws; the ROV operating handle is welded on the ROV operating handle mounting plate. The support block is connected to the shell of the hydraulic cylinder by screws; the support frame is connected to the support block by screws; the support seat is installed under the shell of the hydraulic cylinder; the support frame and the support seat are fixedly connected to the ROV body respectively.

In the utility model, unless otherwise specified, the sealing ring is an O-shaped sealing ring.

In the utility model, the length of the male housing protruding from the male body in the male piston assembly is less than or equal to the stroke of the hydraulic cylinder.

In the utility model, the male head assembly is connected with the underwater working tool through a hydraulic joint and a hydraulic pipeline, and the female head assembly is installed on the ROV body.

In the utility model, four sets of hydraulic oil circuits are correspondingly distributed along the circumferential direction of the male head assembly and the female head assembly. Each group of oil lines has a unique set of deep-water high-pressure resistance and anti-pollution system, which can realize the deep-water green operation of the system.

In the utility model, the axis of the cylindrical pin on the male head assembly is parallel to the axis of the male head assembly, and the axis of the guide column is orthogonal to the axis of the male head assembly; viewed from the end face of the male head body, the two cylindrical pins are symmetrically distributed, It is distributed in an isosceles triangle with the guide column.

The hydraulic piston rod of the utility model is fixed, and the hydraulic cylinder barrel moves.

Application method of the present utility model:

Switching process: the ROV manipulator grips the ROV operating handle, and moves the male assembly to the vicinity of the female assembly; the male shell is gradually inserted into the female shell; rough positioning is performed through the guide groove; with the male assembly and The female head assembly is close to each other, and the fluid existing between the two is squeezed away; during the approaching process, the cylindrical pin and the guide pin are precisely positioned; the approaching process is until the female head shell touches the boss of the male head body; the hydraulic cylinder Push the female head, the female head piston is in contact with the male head shell, and the female head piston moves backward; the female head docking rod contacts the male head piston, and the male head piston moves backward; both the male head oil passage and the female head oil passage are opened , to realize the hydraulic connection between the male head and the female head; the hydraulic cylinder pushes the female head, and the pressing inclined surface on the main body of the female head presses the locking column into the locking groove of the male head body to achieve locking; the ROV manipulator releases The ROV operates the handle to complete the switching process.

Extraction process: ROV manipulator grips the ROV operating handle, and the hydraulic cylinder moves backward; the locking column rebounds under the elastic force of the spring and leaves the locking groove on the main body of the male head to complete the unlocking; the ROV manipulator pulls the male head assembly away from the female body. Head assembly, complete the extraction process.

In summary, the utility model relates to an underwater connecting tool, in particular to an underwater multi-channel hydraulic anti-pollution switching tool operated by an ROV. The utility model comprises a male head assembly, a female head assembly, an ROV operating handle and a support frame. The male head assembly includes a guide post, a male head body, a male head shell, a male head spring, a male head shell sealing ring, a male head shell, a male head piston, a male head piston sealing ring, and a cylindrical pin. The female head assembly includes the female head outer shell, the female head locking spring, the locking column, the female head inner shell, the front end cover of the hydraulic cylinder, the piston, the cylinder body, the rear end cover of the hydraulic cylinder, the piston rod, the hydraulic cylinder shell, the female head Head rod sealing ring, female retaining sleeve sealing ring, female retaining sleeve, female piston sealing ring, female piston, female spring, female guide sleeve, female butt joint ejector rod, piston front cover sealing ring, piston rear End cover sealing ring, wear ring, piston sealing ring, piston rod sealing ring 1, piston rod sealing ring 2. The ROV operating handle includes an ROV operating handle and an ROV operating handle mounting plate. The support frame includes a support plate, a support frame and a support block. The male body and the male housing are connected by screws, and the male housing and the male body are connected by screws. The guide posts and pins have an interference fit with the male body. The outer casing of the female head and the inner casing of the female head are connected by screws. The main body of the female head and the front end cover of the hydraulic cylinder are connected by screws. The piston rod and the hydraulic cylinder shell are connected by screws. The inner shell of the female head and the guide sleeve of the female head are connected by screws. The female retainer and the female main body are connected by screws. The cylinder body and the rear end cover of the hydraulic cylinder are connected by screws. The utility model proposes a structure of an underwater multi-way switching tool, which is compact and simple in structure, reliable in sealing performance, convenient in ROV operation, capable of bearing internal and external pressure at the same time, and is suitable for complex working environments in deep sea. The locking structure is simple and reliable, and can realize automatic unlocking. The movement form of the fixed piston rod and the movement of the hydraulic cylinder is adopted, which can realize the simultaneous movement of multiple joints and effectively reduce the possibility of interference between pipelines. The two-stage docking method is used, firstly through the outer shell for rough alignment, and then through the guide post and cylindrical pin for precise alignment. The hydraulic cylinder is used to push the one-way valve to open and close, and the action is stable and reliable.

Claims (9)

1. A kind of 1. anti-pollution changing-over instrument of underwater multiplex hydraulic pressure operated by ROV, it is characterised in that：Including male assembly, mother Head assembly, support frame, the male assembly include male shell, the male main body being arranged in male shell, are arranged on The male housing of male main body lower end, the male piston being arranged on inside male housing lower end, it is arranged on erecting in male main body Male spring in straight hole, the both ends of male spring are connected with vertical holes and male piston, are additionally provided with male main body respectively Locking slot, the male piston are provided with male hydraulic fluid port, and the male shell lower end inner surface setting has guiding groove；The mother Head assembly includes female shell body, the female inner housing being arranged in female shell body, the mother being arranged in female inner housing Head main body, the female guide sleeve being connected with female inner housing, female interstage sleeve, female piston, hydraulic cylinder, are provided with female main body The through hole of axial direction, female body outer surface is symmetrically arranged with three locking inclined-plane posts, and three locking inclined-plane posts stretch to female Between shell body and female inner housing, female inner housing circumferential outer surface is also symmetrically arranged with three locking holes, each locking hole Locking spring and locking post are inside provided with, one end and the cooperation of locking inclined-plane, the other end and the locking slot of locking post coordinate, and female is led It is provided with to set outer surface with being oriented to the domatic of groove cooperation, female main body is circumferentially provided with the female oil communicated with through hole Hole, and the lower end of through hole is connected with plug by internal thread, is set on plug to there is female to connect push rod, the female interstage sleeve is set Put and be pressed in female main body upper end, the female piston by the pretightning force of female spring on female interstage sleeve, the hydraulic cylinder Drive end bearing bracket be connected in female main body lower end, the drive end bearing bracket of hydraulic cylinder is connected with cylinder body, after cylinder ends are connected with hydraulic cylinder The hydraulic fluid port and oil duct of interconnection are respectively arranged with end cap, the drive end bearing bracket of hydraulic cylinder and the rear end cap of hydraulic cylinder, hydraulic cylinder The end of piston rod is connected with hydraulic cylinder shell, and the piston of hydraulic cylinder is arranged in cylinder body, the hypomere set of the female guide sleeve On hydraulic cylinder shell, the hydraulic cylinder shell is arranged on support frame.
2. 2. a kind of anti-pollution changing-over instrument of underwater multiplex hydraulic pressure operated by ROV according to claim 1, its feature exist In：The axially directed straight pin that serves of vertical direction is additionally provided with the male main body, and straight pin there are two, female Two circular holes coordinated with straight pin are provided with main body；

   The male assembly also includes lead, and lead is connected to male master through male shell and by interference fit On body, female shell body upper end and female inner housing upper end are respectively arranged with the U-type groove coordinated with lead.
3. 3. a kind of anti-pollution changing-over instrument of underwater multiplex hydraulic pressure operated by ROV according to claim 1 or 2, its feature It is：Male housing, male piston, male spring, male oilhole, female interstage sleeve, female piston, female spring, through hole, female The number of oilhole is equal, preferably four.
4. 4. a kind of anti-pollution changing-over instrument of underwater multiplex hydraulic pressure operated by ROV according to claim 1 or 2, its feature It is：Male main body is connected punishment with male housing junction, male piston with male housing junction, plug and female main body Sealing ring is not provided with it.
5. 5. a kind of anti-pollution changing-over instrument of underwater multiplex hydraulic pressure operated by ROV according to claim 3, its feature exist In：Male main body is distinguished with male housing junction, male piston and male housing junction, plug and female main body junction It is provided with sealing ring.
6. 6. a kind of anti-pollution changing-over instrument of underwater multiplex hydraulic pressure operated by ROV according to claim 1 or 2, its feature It is：ROV operating handle installing plates are additionally provided with the male shell, be provided with ROV operating handle installing plates for The ROV manipulators of ROV connections.
7. 7. a kind of anti-pollution changing-over instrument of underwater multiplex hydraulic pressure operated by ROV according to claim 3, its feature exist In：ROV operating handle installing plates are additionally provided with the male shell, is provided with and is used for and ROV on ROV operating handle installing plates The ROV manipulators of connection.
8. 8. a kind of anti-pollution changing-over instrument of underwater multiplex hydraulic pressure operated by ROV according to claim 4, its feature exist In：ROV operating handle installing plates are additionally provided with the male shell, is provided with and is used for and ROV on ROV operating handle installing plates The ROV manipulators of connection.
9. 9. a kind of anti-pollution changing-over instrument of underwater multiplex hydraulic pressure operated by ROV according to claim 5, its feature exist In：ROV operating handle installing plates are additionally provided with the male shell, is provided with and is used for and ROV on ROV operating handle installing plates The ROV manipulators of connection.