CN112254953A

CN112254953A - Laboratory pressure test device for valve for ocean engineering

Info

Publication number: CN112254953A
Application number: CN202011124391.XA
Authority: CN
Inventors: 张倩
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-01-22

Abstract

The invention discloses a laboratory pressure test device for a valve for ocean engineering, and relates to the technical field of valve detection; the problem that the test cannot be carried out according to the working environment of the valve is solved; this equipment specifically includes shell, top cap, support frame and valve body, the breach has been opened respectively to top cap and support frame both sides outer wall, and valve body both sides are provided with the pipeline, and the circle and the pipeline looks adaptation that two breachs formed, top cap top outer wall have been seted up and have been placed the mouth. According to the invention, the top cover and the support frame are arranged, the valve body is placed on the support frame, seawater or river water and the like are added into the support frame to simulate the working conditions of the valve body in different liquids, the swing belt on the swing mechanism swings back and forth, the ball body on the swing mechanism can impact the valve body and can stir water to drive water flow to impact the valve body, the pressure test of the valve body is promoted, and the pressure condition of the valve body in working can be known more intuitively.

Description

Laboratory pressure test device for valve for ocean engineering

Technical Field

The invention relates to the technical field of valve detection, in particular to a laboratory pressure test device for a valve for ocean engineering.

Background

Before the marine valve is installed, strength and tightness tests are required for testing the compactness of the valve body and the valve cover and the pressure resistance of the whole shell including the joint of the valve body and the valve cover, but most of valve testing devices do not have the function of simulating the marine environment and cannot well obtain the pressure test result of the valve under the influence of seawater, so that a laboratory pressure testing device for the marine engineering valve is needed.

Through the retrieval, chinese patent application number is 201810239897.1's patent, discloses a valve pressure test device, including lower base, be equipped with fixed subassembly and test assembly in the frame, wherein the top of the branch that fixed subassembly includes is fixed with arc fixed plate down, the both sides of base are equipped with a stand down, the base is gone up to the top fixedly connected with of stand, the movable end fixedly connected with of extensible member goes up arc fixed plate, the upper surface of going up arc fixed plate lower surface and arc fixed plate down all prolongs its radian direction and all is equipped with an arc recess, the cambered surface of arc recess one side prolongs its radian direction and is equipped with a plurality of spacing holes. The valve pressure test device in the patent has the following defects: the pressure is applied to the interior of the valve, and then the valve is detected, but the pressure condition of the valve in operation cannot be well known because the simulation test is not carried out on the outer surface of the valve according to the working environment of the valve.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a laboratory pressure test device for a valve for ocean engineering.

In order to achieve the purpose, the invention adopts the following technical scheme:

a laboratory pressure test device for a valve for ocean engineering comprises a shell, a top cover, a supporting frame and a valve body, the breach has been opened respectively to top cap and support frame both sides outer wall, the valve body both sides are provided with the pipeline, the circle and the pipeline looks adaptation that two breachs formed, top cap top outer wall has been seted up and has been placed the mouth, valve body one side is provided with the valve rod, the valve rod is located places mouthful inside, the top cap outer wall is provided with two sets of power unit and four wabbler mechanism of group, each wabbler mechanism of group includes the swinging arms, sway the sleeve, dwang and connecting plate, sway the sleeve joint in top cap one side inner wall, the dwang rotates to be connected in swaying sleeve top inner wall, the swinging arms joint is in dwang inner wall, the connecting plate welds in swinging arms top outer wall, the bottom outer wall that the swinging arms.

Preferably: each group power unit includes motor two and elliptical plate, and the baffle has been welded respectively to top cap both sides outer wall, and baffle top outer wall rotates and is connected with the bull stick, and the elliptical plate joint is in the bull stick outer wall, and motor two is fixed in top cap one side outer wall through the screw, and motor two's output shaft is connected with the bull stick through the shaft coupling.

Further: the supporting blocks are welded to the outer walls of the two sides of the top cover respectively, the inner walls of the supporting blocks are connected with a second sliding rod in a sliding mode, a first spring is clamped to the outer wall of one side of the second sliding rod and connected with the supporting blocks, the second sliding rod is located between the elliptical plate and the connecting plate, a second spring capable of enabling the swinging rod to incline is clamped to the inner wall of one side, away from the rotating rod, of the swinging sleeve, the second spring is in contact with the swinging rod, and limiting plates are welded.

Further preferred is: the utility model discloses a lead screw, including shell, support frame, carriage, sliding rod, electric push rod, cardboard, hydraulic stem two, the support frame bottom is connected with hydraulic stem two, the shell inner wall rotates and is connected with the lead screw, shell one side outer wall has motor one through the fix with screw, the output shaft of motor one is connected with the lead screw through the shaft coupling, shell inner wall joint has sliding rod one, sliding rod one outer wall sliding connection has the carriage, the carriage passes through threaded connection in the lead screw outer wall, the L shaped plate has been welded respectively to carriage both sides outer wall, L shaped plate one side is opened there is the spacing groove, spacing inslot wall sliding connection has the cardboard, the spacing inslot wall has.

As a preferable aspect of the present invention: the support frame is characterized in that two fixing blocks II are welded to two sides of outer walls of two sides of the support frame respectively, fixing blocks I are welded to two sides of outer walls of two sides of the top cover respectively, the inner walls of the fixing blocks II and the inner walls of the fixing blocks I are connected with the same connecting bolt through threads, and a placing table is arranged on the outer wall of one side of the shell.

Further preferred as the invention: the pipeline outer wall is provided with a valve disc, two sides of the bottom of the shell are respectively fixed with a first telescopic rod through hinges, the inner walls of the two sides of the shell are respectively rotatably connected with connecting blocks, a first fixing plate is arranged between the two connecting blocks, the first telescopic rod is connected with the first fixing plate through a hinge, the outer wall of the first fixing plate is provided with a sealing assembly and a group of fixing assemblies, the sealing assembly consists of a placing disc and a sealing ring, the inner wall of the bottom of the shell is slidably connected with a support plate, two sides of the inner wall of the support plate are rotatably connected with a second fixing plate, the bottom of the support plate is fixed with a second telescopic rod through hinges, the second telescopic rod is connected, and an electric push rod I is fixed on the inner wall of one side of the clamping groove through a screw and connected with the clamping block.

As a still further scheme of the invention: and the outer wall of the second fixing plate is provided with another group of sealing components and another group of fixing components.

On the basis of the scheme: the fixing assembly comprises a fixing frame, a sliding groove, a first hydraulic rod, a clamping plate and a third electric push rod, the sliding groove is formed in the outer wall of one side of the fixing plate, the fixing frame is connected to the inner wall of the sliding groove in a sliding mode, the third electric push rod is fixed to the inner wall of the sliding groove through bolts, the third electric push rod is connected with the fixing frame, the first hydraulic rod is connected to the inner wall of the fixing frame in a clamped mode, and the clamping plate is fixed to the outer wall.

On the basis of the foregoing scheme, it is preferable that: the water tank and the water storage chamber are respectively formed in the inner wall of the bottom of the shell, the water inlet pipe is clamped on the inner wall of the fixing plate, the water pump and the pressure pump are fixed on the outer wall of one side of the shell through screws, the water outlet end of the water pump is connected with the water inlet pipe, the pressure pump is connected with the water inlet pipe through a hose, and the water inlet end of the water pump is connected with the water storage chamber through a hose.

The invention has the beneficial effects that:

1. through being provided with top cap and support frame, put the valve body into on the support frame, the pipeline card is on the breach, pass the mouth of placing on the top cap with the valve rod, then fix the top cap on the support frame, add sea water or river etc. to the support frame the inside, simulate the situation of valve body during operation in different liquid, when adding water pressure measurement for valve body is inside, in order to pursue the authenticity, be provided with wabbler mechanism, the area swing back and forth swing sways of swaing on the wabbler mechanism, not only the spheroid on it can strike the valve body, and can stir water, drive rivers impact the valve body, play the facilitating action to the pressure test of valve body, can more audio-visual understanding valve body pressure situation at the during operation.

2. Through being provided with and sway sleeve and power unit, power unit comprises motor two and elliptical plate, starter motor two, it rotates to drive the elliptical plate, the elliptical plate is when rotating the major diameter, can extrude slide bar two, extension spring one, it slides on the supporting shoe to drive slide bar two, thereby extrude the connecting plate, extrude spring two, make the swinging arms rotate, then when the elliptical plate rotated the minor diameter, the spring pulls back slide bar two for a while, spring two can change the initial condition back with the swinging arms, thereby accomplish the work of swaing of swinging arms.

3. Through being provided with the lead screw, the lead screw can drive the carriage and remove, the support frame can be removed to the L shaped plate on the carriage, hydraulic stem two can drive the support frame and reciprocate, back on advancing the support frame with the valve body card, utilize connecting bolt to fix the top cap on the support frame, then in order to fix the valve body on fixed plate one, starter motor one, it rotates to drive the lead screw, remove the side of fixed plate one with the valve body, then control hydraulic stem two and electric putter two respectively, the adjustment valve dish card is on placing the dish, utilize the sealing washer to seal.

4. Through being provided with fixed plate one and fixed plate two, when placing the dish contact on valve dish and the fixed plate one, utilize fixed subassembly to fix it, then utilize electric putter one to promote fixed plate two to fixed plate one and remove, until with the fixed plate two on place the dish and contact with the valve dish, then utilize fixed subassembly to fix it, accomplish the fixed of valve body, wherein fixed plate one and fixed plate.

5. The fixing assembly is arranged, the electric push rod III on the fixing assembly controls the fixing frame to slide along the sliding groove and slowly approach the valve disc, then the hydraulic rod I contracts to clamp the clamping plate on the valve disc to fix the valve disc, so that the valve disc can be tightly attached to the placing disc, and air leakage is prevented; through being provided with basin and water-storing room, be connected the force pump with the inlet tube through the hose, then start the water pump, add water to this internal through the inlet tube, the intensity and the leakproofness of testable valve body, after accomplishing the test, water flows out from the valve body and falls in the basin.

Drawings

Fig. 1 is a schematic front view of a laboratory pressure testing device for a valve for ocean engineering in example 1;

fig. 2 is a schematic structural diagram of a fixing plate of the laboratory pressure testing apparatus for the valve for ocean engineering in embodiment 1;

fig. 3 is a schematic structural view of a fixing frame of the laboratory pressure testing apparatus for the valve for ocean engineering in embodiment 1;

fig. 4 is a schematic structural diagram of a supporting frame of the laboratory pressure testing device for the valve for ocean engineering in example 1;

fig. 5 is a schematic structural diagram of a swing rod of the laboratory pressure testing device for the valve for ocean engineering in example 1;

fig. 6 is a schematic side view of the supporting frame of the laboratory pressure testing apparatus for the valve for ocean engineering in embodiment 1;

fig. 7 is a schematic structural diagram of a valve body of the laboratory pressure testing apparatus for a valve for ocean engineering in embodiment 1;

fig. 8 is a schematic diagram of a wobble plate structure of a laboratory pressure testing apparatus for a valve for ocean engineering in example 2.

In the figure: 1 shell, 2 water inlet pipes, 3 first telescopic rods, 4 first fixed plates, 5 first motors, 6 top covers, 7 water tanks, 8 second telescopic rods, 9 supporting plates, 10 first electric push rods, 11 second fixed plates, 12 first sliding rods, 13 lead screws, 14 placing tables, 15 pressure pumps, 16 water pumps, 17 water storage chambers, 18 fixed frames, 19 connecting blocks, 20 placing disks, 21 sealing rings, 22 sliding grooves, 23 first hydraulic rods, 24 clamping plates, 25 third electric push rods, 26 sliding frames, 27 supporting frames, 28 first fixed blocks, 29 connecting bolts, 30 limiting plates, 31 placing ports, 32 second motors, 33 supporting blocks, 34 first springs, 35 second sliding rods, 36 elliptical plates, 37 swinging rods, 38 spheres, 39 swinging belts, 40 swinging sleeves, 41 rotating rods, 42, 43 notches, 44 second hydraulic rods, 45 clamping plates, 46L-shaped plates, 47 second electric push rods, 48 second fixed blocks, 49 valve disks, 50 pipelines, 47 swinging belts, 40 swinging sleeves, 41 rotating rods, 42 connecting plates, 43 notches, the valve comprises a valve body 51, a valve rod 52, a water outlet 53, a bulge 54 and a ridge body 55.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1:

a laboratory pressure test device for valves for ocean engineering is disclosed, as shown in figures 1, 4, 5 and 7, comprising a shell 1, a top cover 6, a support frame 27 and a valve body 51, notches 43 are respectively arranged on the outer walls of the two sides of the top cover 6 and the support frame 27, pipelines 50 are arranged on the two sides of the valve body 51, a circle formed by the two notches 43 is matched with the pipeline 50, a placing opening 31 is arranged on the outer wall of the top cover 6, a valve rod 52 is arranged on one side of the valve body 51, the valve rod 52 is positioned in the placing opening 31, the outer wall of the top cover 6 is provided with two groups of power mechanisms and four groups of swing mechanisms, each group of swing mechanism comprises a swing rod 37, a swing sleeve 40, a swing rod 41 and a connecting plate 42, the swing sleeve 40 is connected with the inner wall of one side of the top cover 6, the swing rod 41, the outer wall of the bottom of the swinging rod 37 in the top cover 6 is provided with more than two S-shaped swinging belts 39, and the bottom of every other swinging belt 39 is provided with a ball 38; through being provided with top cap 6 and support frame 27, put valve body 51 on support frame 27, pipeline 50 card is on breach 43, pass placing mouth 31 on top cap 6 with valve rod 52, then fix top cap 6 on support frame 27, add sea water or river water etc. to support frame 27 the inside, come the situation of simulation valve body 51 during operation in different liquid, when adding water pressure measurement for valve body 51 is inside, in order to pursue the authenticity, be provided with wabble mechanism, the area 39 swing back and forth that sways on the wabble mechanism, not only its spheroid 38 can strike valve body 51, and can stir water, drive rivers impact valve body 51, play the facilitating action to valve body 51's pressure test, can more audio-visually know the pressure situation of valve body 51 at the during operation.

In order to be able to bring about the pivoting of the pivoting lever 37; as shown in figure 1 of the drawings, in which, 2 and 5, each group of power mechanisms comprises a second motor 32 and an elliptical plate 36, partition plates are welded on the outer walls of two sides of a top cover 6 respectively, a rotating rod is rotatably connected to the outer wall of the top of each partition plate, the elliptical plate 36 is clamped on the outer wall of the rotating rod, the second motor 32 is fixed on the outer wall of one side of the top cover 6 through screws, an output shaft of the second motor 32 is connected with the rotating rod through a coupler, supporting blocks 33 are welded on the outer walls of two sides of the top cover 6 respectively, the inner wall of each supporting block 33 is connected with a second sliding rod 35 in a sliding mode, a first spring 34 is clamped on the outer wall of one side of each sliding rod 35, the first spring 34 is connected with the corresponding supporting block 33, the second sliding rod 35 is located between the elliptical plate 36 and a connecting plate 42, a second spring capable of enabling the; through being provided with and sway sleeve 40 and power unit, power unit comprises two 32 motors and oval board 36, start two 32 motors, drive oval board 36 and rotate, oval board 36 is when rotating long diameter, can extrude two slide bar 35, extension spring 34, drive two 35 slides on supporting shoe 33 of slide bar, thereby extrude connecting plate 42, extrude spring two, make swinging arms 37 rotate, then oval board 36 rotates when short diameter, spring 34 can pull back two 35 slide bar, spring two can change swinging arms 37 back initial condition, thereby accomplish swinging arms 37's work.

To better support the valve body 51; as shown in fig. 1, 4 and 6, the inner wall of the housing 1 is rotatably connected with a screw 13, the outer wall of one side of the housing 1 is fixed with a first motor 5 through screws, the output shaft of the first motor 5 is connected with the screw 13 through a coupler, the inner wall of the housing 1 is clamped with a first sliding rod 12, the outer wall of the first sliding rod 12 is slidably connected with a sliding frame 26, the sliding frame 26 is connected with the outer wall of the screw 13 through threads, the outer walls of two sides of the sliding frame 26 are respectively welded with an L-shaped plate 46, one side of the L-shaped plate 46 is provided with a limit groove, the inner wall of the limit groove is slidably connected with a clamping plate 45, the inner wall of the limit groove is fixed with a second electric push rod 47 through screws, the second electric push rod 47 is connected with the clamping plate 45, the outer wall of the top of the clamping plate 45 is fixed with a second hydraulic, the inner walls of the second fixed block 48 and the first fixed block 28 are connected with the same connecting bolt 29 through threads, and the outer wall of one side of the shell 1 is provided with a placing table 14; through being provided with lead screw 13, lead screw 13 can drive carriage 26 and remove, support frame 27 can be removed to L shaped plate 46 on the carriage 26, two 44 hydraulic stems can drive support frame 27 and reciprocate, back on advancing valve body 51 card into support frame 27, utilize connecting bolt 29 to fix top cap 6 on support frame 27, then in order to fix valve body 51 on fixed plate one 4, starter motor one 5, drive lead screw 13 and rotate, move valve body 51 to the side of fixed plate one 4, then control two 44 hydraulic stems and two 47 electric putter respectively, adjusting valve dish 49 cards is on placing the dish 20, utilize sealing washer 21 to seal.

To be able to fix the valve body 51; as shown in fig. 1, 2, 3 and 7, the outer wall of the pipeline 50 is provided with a valve disc 49, two sides of the bottom of the shell 1 are respectively fixed with a first telescopic rod 3 through hinges, two inner walls of the two sides of the shell 1 are respectively connected with a connecting block 19 in a rotating manner, a first fixing plate 4 is arranged between the two connecting blocks 19, the first telescopic rod 3 is connected with the first fixing plate 4 through hinges, the outer wall of the first fixing plate 4 is provided with a sealing component and a group of fixing components, the sealing component is composed of a placing disc 20 and a sealing ring 21, the inner wall of the bottom of the shell 1 is connected with a supporting plate 9 in a sliding manner, two sides of the inner wall of the supporting plate 9 are connected with a second fixing plate 11 in a rotating manner, a second telescopic rod 8 is fixed at the bottom of the supporting plate 9, an electric push rod I10 is fixed on the inner wall of one side of the clamping groove through a screw, the electric push rod I10 is connected with the clamping block, and the outer wall of the fixing plate II 11 is provided with another group of sealing assemblies and another group of fixing assemblies; through being provided with fixed plate one 4 and fixed plate two 11, when valve dish 49 and the dish 20 of placing on fixed plate one 4 contact, utilize fixed subassembly to fix it, then utilize electric putter one 10 to promote fixed plate two 11 and move to fixed plate one 4, until placing dish 20 and valve dish 49 with on fixed plate two 11 and contact, then utilize fixed subassembly to fix it, accomplish the fixed of valve body 51, wherein fixed plate one 4 and fixed plate two 11 all can rotate, when not using, can rotate the level and lie in shell 1.

To enable further fixing of the valve body 51; as shown in fig. 1, 2 and 3, the fixing assembly includes a fixing frame 18, a sliding groove 22, a first hydraulic rod 23, a clamping plate 24 and a third electric push rod 25, the sliding groove 22 is formed in the outer wall of one side of the first fixing plate 4, the fixing frame 18 is slidably connected to the inner wall of the sliding groove 22, the third electric push rod 25 is fixed to the inner wall of the sliding groove 22 through a bolt, the third electric push rod 25 is connected with the fixing frame 18, the first hydraulic rod 23 is clamped to the inner wall of the fixing frame 18, and the clamping plate 24 is fixed to the outer wall of the first hydraulic; through being provided with fixed subassembly, the last electric putter three 25 control mount 18 of fixed subassembly slides along sliding tray 22, slowly is close to valve dish 49, and then hydraulic stem one 23 shrink, with splint 24 card on valve dish 49, fixes valve dish 49, makes valve dish 49 can be inseparable with place the dish 20 laminating together, prevents gas leakage.

In order to be able to perform pressure detection on the valve; as shown in fig. 1 and 2, a water tank 7 and a water storage chamber 17 are respectively arranged on the inner wall of the bottom of the shell 1, a water inlet pipe 2 is clamped on the inner wall of the first fixing plate 4, a water pump 16 and a pressure pump 15 are fixed on the outer wall of one side of the shell 1 through screws, the water outlet end of the water pump 16 is connected with the water inlet pipe 2, the pressure pump 15 is connected with the water inlet pipe 2 through a hose, and the water inlet end of the water pump 16 is connected with the water storage chamber 17; through being provided with basin 7 and water storage room 17, connect force pump 15 with inlet tube 2 through the hose, then start water pump 16, add water through inlet tube 2 in valve body 51, can test the intensity and the leakproofness of valve body 51, after accomplishing the test, water flows out from valve body 51 and falls in basin 7.

In the embodiment, when the valve disc 49 is fixed, the valve disc 49 can be tightly attached to the placing disc 20, the first electric push rod 10 pushes the second fixing plate 11 to move towards the first fixing plate 4 until the second fixing plate 20 on the second fixing plate 11 contacts with the valve disc 49, then the fixing component is used for fixing the valve body 51, the pressure pump 15 is connected with the water inlet pipe 2 through a hose, the water pump 16 is started, water is added into the valve body 51 through the water inlet pipe 2, seawater or river water and the like are added into the supporting frame 27 to simulate the working condition of the valve body 51 in different liquids, the motor II 32 is started to drive the elliptical plate 36 to rotate, the elliptical plate 36 can extrude the sliding rod II 35 when rotating to a long diameter, the spring I34 is stretched to drive the sliding rod II 35 to slide on the supporting block 33, so that the connecting plate 42 is extruded, the spring II is extruded to drive the swinging rod 37 to rotate, then when the elliptical plate 36 rotates to a short diameter, the spring I34 can pull back the sliding rod II 35, the swinging rod 37 is rotated to an initial state by the spring II, the swinging rod 37 continuously swings, and the swinging belt 39 can swing back and forth, not only the ball 38 on it can strike valve body 51, and can stir water, drives rivers impact valve body 51, plays the facilitating action to the intensity and the leakproofness of test valve body 51, can more audio-visual understanding valve body 51 the pressure condition at the during operation.

Example 2:

in order to better simulate the impact of marine organisms on the valve, as shown in fig. 5 and 8, more than two water passing openings 53 are formed in the inner wall of each swing belt 39, the water passing openings 53 are in a circular truncated cone shape, the large openings of the water passing openings 53 on two adjacent swing belts 39 face oppositely, the outer wall of a sphere 38 is provided with protrusions 54 which are distributed unevenly, and the outer wall of the bottom of each swing belt 39 is provided with edge bodies 55 with different edges; through offering the water gap 53 of round platform shape for rocking area 39, can cause rivers to surge the turbulent flow, but the test valve of effect is bigger in the rivers impact of equidirectional not, is provided with the edge body 55 that distributes inhomogeneous arch 54 and edge are different simultaneously for spheroid 38 outer wall, can have certain friction effect, and edge body 55 can simulate hard things such as conch, improves the authenticity of simulation.

In the embodiment, when the swing rod 37 swings, the ball 38 and the edge 55 on the swing belt 39 have an impact effect on the valve, so that water flows through the water outlet 53, and under the impact of the inner wall of the truncated cone-shaped water outlet 53, water flow surging turbulence can be caused.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A laboratory pressure test device for a valve for ocean engineering comprises a shell (1), a top cover (6), a support frame (27) and a valve body (51), and is characterized in that notches (43) are respectively formed in the outer walls of the two sides of the top cover (6) and the support frame (27), pipelines (50) are arranged on the two sides of the valve body (51), a circle formed by the two notches (43) is matched with the pipelines (50), a placing opening (31) is formed in the outer wall of the top cover (6), a valve rod (52) is arranged on one side of the valve body (51), the valve rod (52) is located inside the placing opening (31), two groups of power mechanisms and four groups of swing mechanisms are arranged on the outer wall of the top cover (6), each group of swing mechanism comprises a swing rod (37), a swing sleeve (40), a swing rod (41) and a connecting plate (42), and the swing, dwang (41) rotate to be connected in rocking sleeve (40) top inner wall, swinging arms (37) joint in dwang (41) inner wall, and connecting plate (42) weld in swinging arms (37) top outer wall, and swinging arms (37) are located the bottom outer wall in top cap (6) and are provided with the area (39) that sways of two above S shapes, and every other sways area (39) bottom and is provided with spheroid (38).

2. The laboratory pressure test device for the valve for the ocean engineering as claimed in claim 1, wherein each group of the power mechanism comprises a second motor (32) and an elliptical plate (36), the outer walls of the two sides of the top cover (6) are respectively welded with a partition board, the outer wall of the top of each partition board is rotatably connected with a rotating rod, the elliptical plate (36) is connected with the outer wall of the rotating rod in a clamping manner, the second motor (32) is fixed on the outer wall of one side of the top cover (6) through screws, and the output shaft of the second motor (32) is connected with the rotating rod through a coupler.

3. The laboratory pressure test device for the valve for the ocean engineering according to claim 1, wherein the supporting blocks (33) are welded on the outer walls of the two sides of the top cover (6) respectively, the inner wall of each supporting block (33) is connected with a second sliding rod (35) in a sliding manner, a first spring (34) is clamped on the outer wall of one side of the second sliding rod (35), the first spring (34) is connected with the supporting blocks (33), the second sliding rod (35) is located between the elliptical plate (36) and the connecting plate (42), a second spring capable of enabling the swinging rod (37) to incline is clamped on the inner wall of one side, away from the rotating rod (41), of the swinging sleeve (40), the second spring is in contact with the swinging rod (37), and the outer walls of the two sides of the top cover (6.

4. The laboratory pressure test device for the valve used in the ocean engineering according to claim 1, wherein the inner wall of the housing (1) is rotatably connected with a screw rod (13), the outer wall of one side of the housing (1) is fixed with a first motor (5) through a screw, the output shaft of the first motor (5) is connected with the screw rod (13) through a coupling, the inner wall of the housing (1) is clamped with a first sliding rod (12), the outer wall of the first sliding rod (12) is slidably connected with a sliding frame (26), the sliding frame (26) is connected with the outer wall of the screw rod (13) through a screw thread, the outer walls of two sides of the sliding frame (26) are respectively welded with an L-shaped plate (46), one side of the L-shaped plate (46) is provided with a limiting groove, the inner wall of the limiting groove is slidably connected with a clamping plate (45), the inner wall of the, the outer wall of the top of the clamping plate (45) is fixed with a second hydraulic rod (44) through a screw, and the bottom of the supporting frame (27) is connected with the second hydraulic rod (44).

5. The laboratory pressure test device for the valve for the ocean engineering according to claim 1, wherein two sides of the outer walls of the two sides of the supporting frame (27) are respectively welded with a second fixing block (48), two sides of the outer walls of the two sides of the top cover (6) are respectively welded with a first fixing block (28), the inner walls of the second fixing block (48) and the first fixing block (28) are connected with the same connecting bolt (29) through threads, and the outer wall of one side of the shell (1) is provided with a placing table (14).

6. The laboratory pressure test device for the valve for the ocean engineering according to claim 1, wherein the outer wall of the pipeline (50) is provided with a valve disc (49), two sides of the bottom of the shell (1) are respectively fixed with a first telescopic rod (3) through hinges, two inner walls of the two sides of the shell (1) are respectively connected with connecting blocks (19) in a rotating manner, a first fixing plate (4) is arranged between the two connecting blocks (19), the first telescopic rod (3) is connected with the first fixing plate (4) through hinges, the outer wall of the first fixing plate (4) is provided with a sealing assembly and a group of fixing assemblies, the sealing assembly is composed of a placing disc (20) and a sealing ring (21), the inner wall of the bottom of the shell (1) is connected with a support plate (9) in a sliding manner, two sides of the inner wall of the support plate (9) are connected with a second fixing plate, the second telescopic rod (8) is connected with the second fixing plate (11) through a hinge, clamping blocks are welded on two sides of the supporting plate (9), clamping grooves are formed in two sides of the shell (1) respectively, the clamping blocks are connected in the clamping grooves in a sliding mode, an electric push rod I (10) is fixed to the inner wall of one side of each clamping groove through screws, and the electric push rod I (10) is connected with the clamping blocks.

7. Laboratory pressure test device for marine engineering valves according to claim 6, characterized in that the outer wall of the second fixing plate (11) is provided with another set of sealing components and another set of fixing components.

8. The laboratory pressure test device for valve for ocean engineering according to claim 6, wherein the fixed subassembly includes mount (18), sliding tray (22), hydraulic stem one (23), splint (24) and electric putter three (25), sliding tray (22) set up in fixed plate one (4) one side outer wall, mount (18) sliding connection is in sliding tray (22) inner wall, electric putter three (25) are fixed in sliding tray (22) inner wall through the bolt, electric putter three (25) are connected with mount (18), hydraulic stem one (23) joint in mount (18) inner wall, splint (24) are fixed in hydraulic stem one (23) outer wall through the screw.

9. The laboratory pressure test device for the valve for the ocean engineering according to claim 1, wherein the inner wall of the bottom of the housing (1) is provided with a water tank (7) and a water storage chamber (17) respectively, the inner wall of the first fixing plate (4) is connected with the water inlet pipe (2) in a clamping manner, the outer wall of one side of the housing (1) is fixed with a water pump (16) and a pressure pump (15) through screws, the water outlet end of the water pump (16) is connected with the water inlet pipe (2), the pressure pump (15) is connected with the water inlet pipe (2) through a hose, and the water inlet end of the water pump (16) is connected with the water storage chamber (17) through.