CN208107283U - A kind of execution system for driving valve to open and close - Google Patents

Abstract

The utility model discloses a kind of execution systems for driving valve to open and close, including first shell, linkage block, the first drive rod and driving mechanism.Wherein first shell has first inner chamber；Medium channel is offered on the side wall of first shell；Linkage block periphery wall surface, which seals slidingly against, to be arranged on the wall surface of first inner chamber, and first inner chamber is divided into upper cavity and lower chamber；Medium channel is connected to upper cavity；First drive rod bottom sequentially pass through first shell top and linkage block after protrude into lower chamber；Linkage block is blocked in the region between limiting section and the top of first shell by the limiting section of the bottom of the first drive rod；Driving mechanism is arranged on the top of the first drive rod.Reduce the friction level between the outer peripheral sidewall of linkage block and the inner surface of first shell, reduce the probability that gap is generated between the side wall of linkage block and the inner wall of first shell, and then the first drive rod drives stem movement in place, improves the reliability for executing the folding of system control valve door.

Description

A kind of execution system for driving valve to open and close

Technical field

The utility model relates to valve technology fields, and in particular to a kind of execution system for driving valve to open and close.

Background technique

Under ocean water in oil gas, oil exploitation and the apparatus of production, it will usually use underwater valve and valve Actuator devices, executing agency drive underwater valve to open valve, and underwater valve and its executing agency are required to Macrocyclic non-maintaining use job requirement, thus, the underwater valve of high reliability and its executing agency become underwater valve The design key of door gear.

For example, Chinese patent literature CN106481830A discloses a kind of hydraulic underwater valve of high reliability, it is included in edge Vertical direction is sequentially connected from top to bottom is provided with operating stick, sleeve, support base, piston rod and valve rod.Piston rod has bar portion The piston head being fixedly connected with post.Driving method of the underwater valve of the structure provided with two kinds of opening/shutting valves, one Kind is by machine driving impact operations bar, successively drive sleeve and support base, and then control piston rod up and down motion, to control The folding of valve processed；Another kind is hydraulic-driven, by driving piston rod to be controlled with hydraulic actuating mechanism, thus control valve The folding of door.

Hydraulic actuating mechanism includes hydraulic cylinder, hydraulic power source import and hydraulic power source outlet.Wherein, the side wall surface of piston head exists Upper sealing sliding, the top surface of piston head and hydraulic cylinder form seal cavity, pass through control along the vertical direction on the inner wall of hydraulic cylinder The hydraulic medium of hydraulic power source import processed and hydraulic power source outlet flows into or outflow seal cavity, and then manipulates the liter of piston head and valve rod Drop, controls opening or closing for valve.

In the execution structure of the valve of above structure, in mechanical transmission course, piston rod under the drive of support base Vertical direction slides up and down, since side wall surface and the hydraulic cylinder inner wall of piston head are sealed against, at this point, increasing the side of piston head There are sliding frictions between wall surface and hydraulic cylinder, will generate a degree of abrasion to piston head side wall surface, so that piston head It is easy to produce gap between side wall and hydraulic cylinder inner wall, the gap location can there is a phenomenon where hydraulic mediums to leak, leads to liquid Pressure medium is unable to fully control the position of piston rod, in turn results in piston rod and drives stem movement not in place, causes valve The problem of opening or closing for door is not in place, the poor reliability of valve.

Utility model content

Therefore, the technical problem to be solved by the utility model is in the prior art for driving holding for valve folding Row system causes stem movement not in place, so that the problem that the reliability of valve is low when driving stem moves.

For this purpose, the utility model provides a kind of execution system for driving valve to open and close, including：

First shell has first inner chamber；It offers on the side wall of the first shell and is connected to the first inner chamber At least one medium channel；

Linkage block, periphery wall surface, which seals slidingly against, to be arranged on the wall surface of the first inner chamber, and by described first Inner cavity is divided into the upper cavity being located above and underlying lower chamber；The medium channel is connected to the upper cavity；

First drive rod, bottom successively seal and be slidably disposed through the first shell top and the linkage block After protrude into the lower chamber；There is the limiting section extended horizontally outward on the periphery wall surface of the bottom of first drive rod, The limiting section is for the linkage block to be blocked in the region between the limiting section and the top of the first shell；Institute The bottom for stating the first drive rod is used for the valve rod of connecting valve；

Driving mechanism is arranged on the top of first drive rod, for driving first drive rod to do lifting fortune It is dynamic.

Preferably, the above-mentioned execution system for driving valve to open and close, the driving mechanism include

First driver；

First rotary shaft, top by first driver driving and rotate；

Transition components, bottom are fixed on the top of first drive rod, and top is connected to first rotation In the outside wall surface of axis；The transition components are used to convert the rotary motion of first rotary shaft to the elevating movement of straight line.

It is further preferred that the above-mentioned execution system for driving valve to open and close, the transition components include

The First Transition set being threadedly engaged in the outside wall surface of first rotary shaft；It is fixed on first drive rod The second transition sleeve on top；

The bottom of the First Transition set is resisted against on the top of second transition sleeve；

The bottom of first rotary shaft is protruded into the inner cavity of second transition sleeve, and the top with first drive rod Spacing needed for being reserved between portion.

It is further preferred that the above-mentioned execution system for driving valve to open and close, the execution system further includes opposite The first cylinder of the top of first drive rod is fixedly installed and is located in the first shell；First barrel jacket is in institute It states outside First Transition set and the second transition sleeve.

It is further preferred that the above-mentioned execution system for driving valve to open and close, the driving mechanism further include

In the outside wall surface of First Transition set and the inner wall of first cylinder on any wall surface offer to Few first guide chute, and be arranged in the outside wall surface of the First Transition set and the inner wall of first cylinder in addition The first guide part on one wall surface, first guide part are inserted into correspondingly in first guide chute, and described Vertically linearly or helically line extends one guide chute；And/or

In the outside wall surface of second transition sleeve and the inner wall of first cylinder on any wall surface offer to Few second guide chute, and be arranged in the outside wall surface of second transition sleeve and the inner wall of first cylinder in addition The second guide part on one wall surface, second guide part are inserted into correspondingly in second guide chute, and described Vertically linearly or helically line extends two guide chutes.

It is further preferred that the above-mentioned execution system for driving valve to open and close, further includes being fixed on described first to drive Support on the top of lever；The support is located at outside first cylinder, the inner wall of the support and second transition The space for first cylinder insertion is surrounded between the outside wall surface of set；

It further include at least one elastic component being vertically arranged between the support and the outside wall surface of the first shell, The elastic component applies the biasing force towards first rotary axis direction to the support.

It is further preferred that the above-mentioned execution system for driving valve to open and close, the driving mechanism further include

The second rotary shaft in first rotary shaft is set, and the top of second rotary shaft is by first driving The driving of device and rotate；And the speed reducer that will be connected at the top of the bottom of second rotary shaft and first rotary shaft Structure；

The deceleration mechanism includes the second gear being coaxially socketed on second rotary shaft bottom, and with described first The first gear being fixedly connected at the top of drive shaft, the outside wall surface of the second gear are engaged with the outside wall surface of the first gear Setting.

It is further preferred that the above-mentioned execution system for driving valve to open and close, the deceleration mechanism further includes being located at First Transition wheel below the second gear and first gear, the First Transition wheel are socketed in the top of first rotary shaft In portion；The top of first rotary shaft is connect by the First Transition wheel with the first gear.

It is further preferred that the above-mentioned execution system for driving valve to open and close, further includes being set in the first shell Second shell in the outside wall surface of body；

Installation cavity, first drive rod and the driving machine are surrounded between the second shell and the first shell Structure is installed in the installation cavity body；

The execution system further include for adjust in the installation cavity body with the pressure in water environment locating for the valve The equal balancer of power.

It is further preferred that the above-mentioned execution system for driving valve to open and close, opened on the top of the second shell Equipped with the first opening；

The balancer includes

Third shell is sealingly mounted on the top of the second shell；The third shell has second inner chamber, described The bottom of third shell offers the second opening with first open communication；The side wall of the third shell and/or top On offer intercommunicating pore, when being put into the hydraulic medium of preset height in the installation cavity, the intercommunicating pore is located at the peace The top for the liquid level of hydraulic medium in body of behaveing affectedly；And

Conduction pipe outside the third shell, the conduction pipe have the connection being sealingly mounted on the intercommunicating pore Section, and the introduction segment being sealingly mounted on the bottom of the linkage section, the bottom of the introduction segment extend downwardly.

It is further preferred that the above-mentioned execution system for driving valve to open and close, the linkage section and the introduction segment It is made of different and etch-proof metal material；

The conduction pipe further includes the changeover portion for being tightly connected the bottom of the linkage section and the top of the introduction segment, The changeover portion is made of nonmetallic and anticorrosion material.

Technical solution provided by the utility model, has the following advantages that：

1. the execution system provided by the utility model for driving valve to open and close, including first shell, linkage block, first Drive rod and driving mechanism.Wherein, first shell has first inner chamber；It is offered on the side wall of the first shell and described At least one medium channel of one inner cavity connection；Linkage block, periphery wall surface, which seals slidingly against, to be arranged in the first inner chamber Wall surface on, and the first inner chamber is divided into the upper cavity being located above and underlying lower chamber；The medium is logical Road is connected to the upper cavity；The bottom of first drive rod successively seal and be slidably disposed through the first shell top and It is protruded into after the linkage block in the lower chamber；Have on the periphery wall surface of the bottom of first drive rod and extends horizontally outward Limiting section, the limiting section is for the linkage block to be blocked between the limiting section and the top of the first shell In region；The bottom of first drive rod is used for the valve rod of connecting valve；First drive rod is arranged in driving mechanism On top, for driving first drive rod to move up and down.

The execution system for driving valve to open and close of this structure, in the movement of hydraulic medium driving stem, hydraulic medium It is passed through in upper cavity by medium channel, drives linkage block to move downward under the driving force of medium, the bottom of linkage block and the The limiting section of one drive rod abuts, so that the first drive rod and linkage block move synchronously；In Mechanical Driven, due to the first drive Lever is slidably arranged relative to linkage block, and linkage block is not driven power again, change in location will not occur and maintain in situ Set it is motionless, when driving mechanism drive the first drive rod move up and down when, linkage block and the limit part of the first drive rod are left, When first drive rod moves up and down, it not will drive linkage block and move up and down, to reduce the outer peripheral sidewall wall surface of linkage block Friction level between the inner surface of first shell, and then reduce and produced between the side wall of linkage block and the inner wall of first shell The probability in raw gap, to improve in hydraulic-driven, hydraulic medium controls the movement position of the first drive rod, in turn So that the first drive rod drives stem movement in place, realizes the normally-open of valve or close, improve and execute system control valve door The reliability of folding.

2. the execution system provided by the utility model for driving valve to open and close, the driving mechanism includes the first driving Device, the first rotary shaft and transition components.Wherein, the top of the first rotary shaft by first driver driving and rotate；Turn The bottom for changing component is fixed on the top of first drive rod, and top is connected to the outside wall surface of first rotary shaft On；The transition components are used to convert the rotary motion of first rotary shaft to the elevating movement of straight line, realize the first rotation Shaft drives the first drive rod band ovable valve stem to move up and down.

Further, the transition components include the First Transition being threadedly engaged in the outside wall surface of first rotary shaft Set；The second transition sleeve being fixed on the top of first drive rod；The bottom of First Transition set is resisted against described the On the top of two transition sleeves；The bottom of first rotary shaft is protruded into the inner cavity of second transition sleeve, and with described first Spacing needed for being reserved between the top of drive rod.

In the movement of Mechanical Driven valve rod, when the first rotary shaft rotates, move in a straight line First Transition set, and then first Transition sleeve drives the second transition sleeve that the first drive rod is driven to move up and down, but not linkage block is driven to move synchronously；In liquid When pressing media drive, since the bottom of First Transition set and the top of the second transition sleeve are abutting contact, driven in hydraulic medium When dynamic linkage block and the first drive rod move downward, the second transition sleeve and the first drive rod will be disengaged from First Transition set, when first When drive rod and linkage block move upwards and reset to initial position, the bottom of First Transition set is resisted against at the top of the second transition sleeve In portion, so that it is guaranteed that the movement of the second transition sleeve not will drive First Transition set when hydraulic medium drives the movement of the first drive rod And first rotary shaft movement, to realize that Mechanical Driven mode exists independently of each other with hydraulic driving mode.

3. the execution system provided by the utility model for driving valve to open and close, first barrel jacket is described first Outside transition sleeve and the second transition sleeve.The driving mechanism further includes being provided with the outside wall surface and described the of First Transition set At least one first guide chute in the inner wall of one cylinder on any wall surface, and the outer wall of the First Transition set is set The first guide part in the inner wall of face and first cylinder on another wall surface, first guide part is correspondingly It is inserted into first guide chute, vertically linearly or helically line extends first guide chute.

The execution system for driving valve to open and close of this structure, the first guide part and the first guide chute correspond into Row plugs, and the guide direction of the first guide chute has what is above extended along the vertical direction to divide direction, so that it is guaranteed that First Transition set There is displacement component in the vertical direction, guiding role is played to the elevating movement of First Transition set.

4. the execution system provided by the utility model for driving valve to open and close further includes being fixed on first driving Support on the top of bar；And at least one between the support and the outside wall surface of the first shell is vertically set Elastic component, the elastic component apply the biasing force towards first rotary axis direction to the support.

The execution system for driving valve to open and close of this structure, regardless of using hydraulic medium or mechanical system driving first When drive rod band ovable valve stem does descending motion, when stem movement to minimum point, corresponding valve is in the open state, and elastic component is in Confined state；When needing Open valve, driving stem and the first drive rod is needed to move upwards, is driven in revocation to first When the hydraulic-driven power and mechanical drive of bar effect, elastic component will discharge decrement, the first drive rod of driving, valve rod and support It moves upwards, so that valve rapid-closing.Multiple elastic components are further set, additionally it is possible to further accelerate the fast of valve Speed is closed.That is, elastic component carries out support, the first drive rod and the second transition sleeve in the active force of no other forms Driving resets, and then is reliably closed to valve.

5. the execution system provided by the utility model for driving valve to open and close, the deceleration mechanism includes coaxial socket Second gear on second rotary shaft bottom, and with the first gear that is fixedly connected at the top of first drive shaft, The outside wall surface of the second gear and the outside wall surface of the first gear are engaged.

The execution system for driving valve to open and close of this structure, since second gear and the second concentric rotation axis are arranged, The outside wall surface of second gear outside wall surface and first gear engaged transmission, thus, first gear is located remotely from compared to second gear The position of first rotary shaft is arranged.First distance between the rotation axis of first gear and the axis of the second rotary shaft is greater than, The axis of second gear is to the second distance between the axis of the second rotary shaft, then the revolving speed of second gear and first gear are around Faster, the second rotary shaft velocity of rotation is faster than the first rotary shaft velocity of rotation to the speed of one rotary shaft rotation, realizes and revolves to first The purpose that shaft is slowed down, thus twisting resistance is applied to the second rotary shaft, the twisting resistance that the first rotary shaft is exported will be bigger, in turn Guarantee have sufficiently large the first drive rod of torsion power drive and stem movement to corresponding folding position, and accurate in place, It ensure that the reliability of valve.

6. the execution system provided by the utility model for driving valve to open and close, the deceleration mechanism further includes being located at institute The First Transition wheel below second gear and first gear is stated, the First Transition wheel is socketed in the top of first rotary shaft On；The top of first rotary shaft is connect by the First Transition wheel with the first gear.

The execution system for driving valve to open and close of this structure, the bottom end of First Transition wheel is set in first gear end On, in first gear and second gear, first gear is as driving link, and First Transition wheel is as driven member, in the band of driving link Under dynamic, only the movement circumferentially rotated by first gear around the second rotary shaft passes to the first rotary shaft, into guarantee the first rotation The transmitting stability for the revolving speed that shaft revolving speed and first gear are rotated around the first rotary shaft.

7. the execution system provided by the utility model for driving valve to open and close, the execution system further includes for adjusting Save balancer equal with the pressure in water environment locating for the valve in the installation cavity body, the top of the second shell On offer the first opening；The balancer includes third shell, is sealingly mounted on the top of the second shell；Described Three shells have second inner chamber, and the bottom of the third shell offers the second opening with first open communication；It is described Intercommunicating pore is offered on the side wall of third shell and/or top, the hydraulic medium of preset height is put into the installation cavity When, the intercommunicating pore is located at the top of the liquid level of hydraulic medium in the installation cavity.

The execution system for driving valve to open and close of this structure, third shell are arranged on the top of second shell, sea Water is entered in second inner chamber by intercommunicating pore, and is full of second inner chamber with preset hydraulic medium.Under balancer working condition, Seawater is in top position, and hydraulic medium opposite seawater under the action of its self weight is below position, in second inner chamber Seawater is directly contacted with hydraulic medium top surface, and with pressure change in second inner chamber and installation cavity body, hydraulic medium is in second The height and position of chamber will rise or fall, to guarantee the balance between two cavity internal pressures and Underwater Pressure.In addition, hydraulic Under the block effect of medium, seawater will not be mixed into installation cavity body with hydraulic medium, can be operated normally thereby executing system, It ensure that the high reliability of valve.

8. the execution system provided by the utility model for driving valve to open and close, the conducting outside the third shell Pipe, the conduction pipe has the linkage section being sealingly mounted on the intercommunicating pore, and is sealingly mounted at the bottom of the linkage section On introduction segment, the bottom of the introduction segment extends downwardly.The linkage section and the introduction segment are using different and etch-proof Metal material is made；The conduction pipe further includes the mistake for being tightly connected the bottom of the linkage section and the top of the introduction segment Section is crossed, the changeover portion is made of nonmetallic and anticorrosion material.

The execution system for being used to drive underwater valve of this structure, introduction segment are made of metal material, and into seawater Release metal ions cause to block to seawater to prevent marine organisms close to import from flowing in or out for second inner chamber；This Outside, the setting of changeover portion prevents that galvanic corrosion occurs between linkage section and introduction segment, to improve making for valve balancer Use the service life.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of the execution system provided in embodiment 1 for driving valve to open and close；

Fig. 2 is the partial enlargement diagram of Fig. 1 center A；

Fig. 3 is the structural schematic diagram of balancer in embodiment 1；

Fig. 4 is the structure enlargement diagram of Fig. 3 centre circle B；

Fig. 5 is the structural schematic diagram of switch indicating device in embodiment 1；

Fig. 6 is the overlooking structure diagram of the execution system provided in embodiment 1 for driving valve to open and close；

Description of symbols：

1- first shell；111- upper cavity；112- lower chamber；12- hydraulic inlet channel；13- hydraulic output channel；

2- linkage block；

The first drive rod of 31-；311- limiting section；32- support；33- divided ring；

The first rotary shaft of 41-；421- First Transition set；The second transition sleeve of 422-；The second rotary shaft of 43-；The second tooth of 441- Wheel；442- first gear；The first protrusion of 4421-；The second protrusion of 4422-；443- First Transition wheel；The first groove of 4431-；444- Second transition wheel；The second groove of 4441-；4442- interconnecting piece；443- third gear；

The first cylinder of 5-；

6- elastic component；

7- second shell；71- installs cavity；72- lid；721- first is open

8- balancer；81- third shell；811- bottom plate；812- side plate；813- upper cover；814- intercommunicating pore；815- second is opened Mouthful；82- second inner chamber；83- conduction pipe；831- linkage section；832- introduction segment；833- changeover portion；84- chock plug；85- connector；

9- switch indicating mechanism；The first transmission shaft of 91-；The second cylinder of 92-；93- second driving shaft；94- indicator；951- Open indicateing arm；952- closes indicateing arm.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other Not constituting conflict can be combined with each other.

Embodiment 1

The present embodiment provides a kind of execution systems for driving valve to open and close, as shown in Figures 1 to 6, including：First shell Body 1, second shell 7, linkage block 2 and the first drive rod 31 and driving mechanism.

Wherein, first inner chamber is equipped with inside first shell 1；The setting of linkage block 2 is in first inner chamber, outside linkage block 2 Peripheral wall surfaces are slidably arranged on the wall surface of first inner chamber, and first inner chamber is divided into the upper cavity 111 being located above and position Lower chamber 112 in lower section；Second shell 7 is set in the outside wall surface of first shell 1, and is surrounded between first shell 1 Cavity 71 is installed, driving mechanism is arranged on the top of the first drive rod 31, for driving the first drive rod 31 to move up and down, Driving mechanism and 31 top of the first drive rod are installed in installation cavity 71, and 31 bottom of the first drive rod successively seals and can slide It is protruded into lower chamber 112 behind the top of first shell 1 and linkage block 2 dynamicly, the bottom of the first drive rod 31 is for connecting The valve rod of valve.

Specifically, offering two medium channels being connected to first inner chamber along the side wall of first shell 1：It is hydraulic into Mouth channel 12 and hydraulic output channel 13, above-mentioned medium channel is connected with upper cavity 111, so that medium is along medium channel First inner chamber is flowed in and out, the medium in first inner chamber applies medium power along the vertical direction to linkage block 2, and guarantees Jie When matter power is greater than the elastic force of elastic component 6 (mentioned hereafter), linkage block 2 is acted on by the two under the driving of resultant force, drives valve Bar moves downward and realizes Open valve.Have on the periphery wall surface of the bottom of first drive rod 31 and extends horizontally outward Limiting section 311, limiting section 311 are used to for linkage block 2 being blocked in the region between limiting section 311 and the top of first shell 1, To which after medium flows into first inner chamber, linkage block 2 drives the first drive rod 31 to move up and down.

As shown in Figure 1, including the first rotary shaft 41, the second rotary shaft 43, deceleration mechanism, the first driver in driving mechanism And transition components.

Wherein, the second rotary shaft 43 is arranged in the first rotary shaft 41, and the top of the second rotary shaft 43 is by the first driver Driving and rotate, and then drive the first rotary shaft 41 around its axial-rotation；The bottom of second rotary shaft 43 and the first rotary shaft The deceleration mechanism that 41 top is connected；The bottom of transition components is fixed on the top of the first drive rod 31, and top connects It connects in the outside wall surface of the first rotary shaft 41；Transition components are used to convert the rotary motion of the first rotary shaft 41 to the liter of straight line Drop movement, opens and closes valve by this execution system in the useful space to ensure that.

As shown in Figure 1, further include the first cylinder 5 in execution system in the present embodiment, and above-mentioned transition components include First Transition set 421 and the second transition sleeve 422.

Wherein, the first cylinder 5 is fixedly installed and is located at the top of the first drive rod 31 relative to first shell 1；First 5 sets of body is outside First Transition set 421 and the second transition sleeve 422, furthermore deceleration mechanism, the first rotary shaft 41, the second rotary shaft 43 It is set in the first cylinder 5.First Transition set 421 by helicitic texture cooperation in the outside wall surface of the first rotary shaft 41 the One transition sleeve 421；Second transition sleeve, 422 bottom end is fixed on the top of the first drive rod 31；The bottom of First Transition set 421 Portion is resisted against on the top of the second transition sleeve 422.Such as First Transition set 421 is valve stem nut.

Specifically, the first cylinder 5 is fixedly connected with the lid 72 at the top of second shell 7 by helicitic texture, second Transition sleeve 422 is with the first drive rod 31 by fixing to screw-threaded coupling；The second transition sleeve 422 is protruded into the bottom of first rotary shaft 41 Inner cavity in, and between the top of the first drive rod 31 reserve needed for spacing.The screw thread of valve stem nut and the first rotary shaft 41 Fit system realizes the conversion of forms of motion between the two, and valve stem nut bottom is set on 422 top of the second transition sleeve, into one Step guarantees effectively to transmit elevating movement.For example, the bottom of valve stem nut has the extension in axial direction extended downwardly Portion, the outside wall surface of extension and the interior sidewall surface of the second transition sleeve 422 can be overlapped mutually.

For example, being coupled between valve stem nut and the first cylinder 5 by the spline that vertical direction extends, wherein outside valve stem nut Side wall surface is equipped with external splines, internal spline is equipped in the side wall surface of the first cylinder 5, in addition, the second transition sleeve 422 and the first cylinder Couple between 5 also by spline, the outer side surface of the second transition sleeve 422 is equipped with external splines, in the interior sidewall surface of the first cylinder 5 Equipped with internal spline.

In above structure, for the spline being arranged inside and outside since the number of teeth is more, the contact area between spline is larger, thus can hold Bigger load is carried, to improve the bearing capacity of this execution system；In addition, when the first 41 pivoting of rotary shaft, it is interior External splines guarantees valve stem nut and the second transition sleeve 422 and only along the direction of spline, and opposite first cylinder 5 is in vertical direction Elevating movement, meanwhile, guarantee when valve stem nut or the second transition sleeve 422 are moved up and down by external force to neutrality, further Guarantee the stability of valve stem nut or the second transition sleeve 422 and the coaxial vertically moving process of the first drive rod 31, and The reliably folding of control valve.

In the movement of Mechanical Driven valve rod, when the first rotary shaft 41 rotates, move in a straight line First Transition set 421, into And 421 the second transition sleeve 422 of driving of First Transition set drives the first drive rod 31 to move up and down, but not drives linkage block 2 It moves synchronously；In hydraulic medium driving, since the bottom of First Transition set 421 and the top of the second transition sleeve 422 are Abutting contact, when hydraulic medium drives linkage block 2 and the first drive rod 31 to move downward, the second transition sleeve 422 and first is driven Lever 31 will be disengaged from First Transition set 421, when the first drive rod 31 and linkage block 2 move upwards and reset to initial position, It is resisted against at the top of second transition sleeve on the bottom of First Transition set, so that it is guaranteed that hydraulic medium drives the movement of the first drive rod 31 When, the movement of the second transition sleeve 422 not will drive the movement of First Transition set 421 and the first rotary shaft 41, to realize machinery Driving method exists independently of each other with hydraulic driving mode.

As depicted in figs. 1 and 2, deceleration mechanism provided in this embodiment comprising second gear 441, first gear 442, Third gear 443, First Transition wheel 443 and the second transition wheel 444.

Wherein, second gear 441 is co-axially mounted with the second rotary shaft 43；Third gear 443 and lid 72 pass through screw thread knot Structure is fixedly mounted；The outside wall surface of second gear 441 and the outside wall surface of first gear 442 are engaged, the outer wall of first gear 442 Face and the inner wall of third gear 443 are engaged；First Transition wheel 443 is arranged under second gear 441 and first gear 442 Side, and abutted with the bottom end of first gear 442；First Transition wheel 443 is set in 41 top of the first rotary shaft, and rotates with first Axis 41 is coaxially fixedly mounted；Second transition wheel 444 is set in 43 outside of the second rotary shaft, and is located at second gear 441 and first The top of gear 442, the second transition wheel 444 are abutted with the top of first gear 442；First Transition wheel 443 and the second transition wheel It is fixedly connected between 444 by fixed structure.Most preferably, there are three being axially uniformly arranged in deceleration mechanism around the second rotary shaft 43 First gear 442.

The deceleration mechanism provided in the present embodiment is planetary gear speed-reduction setting, and second gear 441 is equivalent to sun gear, the One gear 442 is the sun wheel in planetary gear, and third gear 443 is gear ring.Wherein, sun gear is as driving link, sun wheel As driven member, gear ring is motionless, to guarantee that the opposite sun gear of the first rotary shaft 41 being fixedly connected with sun wheel does deceleration fortune It is dynamic.

Specifically, since second gear 441 and the second rotary shaft 43 are coaxially disposed, 441 outside wall surface of second gear and the The outside wall surface engaged transmission of one gear 442, thus, first gear 442 is located remotely from the first rotation compared to second gear 441 The position of axis 41 is arranged.First distance between the rotation axis of first gear 442 and the axis of the second rotary shaft 43 is greater than, the The axis of two gears 441 is to the second distance between the axis of the second rotary shaft 43, then the revolving speed of second gear 441 and the first tooth Wheel 442 around the first rotary shaft 41 rotation speed faster, 43 velocity of rotation of the second rotary shaft is faster than the first rotary shaft 41 and rotates speed Degree realizes the purpose slowed down to the first rotary shaft 41, thus applies twisting resistance to the second rotary shaft 43, and 41 institute of the first rotary shaft is defeated Twisting resistance out will be bigger, and then guarantee to have sufficiently large the first drive rod of torsion power drive 31 and stem movement to corresponding Position is opened and closed, and accurate in place, ensure that the reliability of valve.

Specifically, as depicted in figs. 1 and 2, the bottom of first gear 442 has the first protrusion 4421, accordingly, first Correspond at the position of the first protrusion 4421 on the top surface of transition wheel 443 and offers the first groove 4431；First protrusion 4421 are plugged in the first groove 4431.Similarly, the top of first gear 442 has the second protrusion 4422, the second transition wheel 444 corresponding to the second groove 4441 is offered at the bottom surface of the second protrusion 4422, and it is recessed that the second protrusion 4422 is plugged on second In slot 4441.The cooperation of either first protrusion 4421 and the first groove 4431 or the second groove 4441 and the second protrusion 4422 cooperation, the fit system between groove and protrusion are clearance fit, to guarantee that first gear 442 can be in the first mistake Rotation in the groove of ferry boat 443 and the second transition wheel 444.First gear 442, First Transition wheel 443 and the second transition wheel In 444 transmission process, first gear 442 is used as driving link, and First Transition wheel 443 and the second transition wheel 444 are used as driven member, Under the drive of driving link, first gear 442 is only passed into the first rotary shaft around the movement of the second rotary shaft 43 circumferentially rotated 41, into the transmitting stability of the revolving speed rotated with guarantee 41 revolving speed of the first rotary shaft and first gear 442 around the second rotary shaft 43.

Second transition wheel 444 as depicted in figs. 1 and 2 has direction in the bottom surface far from 442 side of first gear The interconnecting piece 4442 that 443 direction of First Transition wheel extends, interconnecting piece 4442 are located at outside second gear 441；Interconnecting piece 4442 and The top of one transition wheel 443 is fixedly connected by threaded fastener, is further ensured that the stability of transmitting.

There is the boss extended radially outward, boss both ends are respectively equipped with bearing, and pass through axis in first rotary shaft 41 Pressure cap is fixed.Bearing can support the first rotary shaft 41 and move around axis, while reduce in 41 turning course of the first rotary shaft Coefficient of friction, and then guarantee its rotating accuracy, and the twisting resistance by being transmitted by First Transition wheel 443.

As shown in Figure 1, further including the branch being fixed on the top of the first drive rod 31 in execution system in the present embodiment Seat 32, institute and the second transition sleeve 422 pass through divided ring 33 and be fixedly connected.Support 32 is located at outside the first cylinder 5, support 32 it is interior The space for the insertion of the first cylinder 5 is surrounded between wall surface and the outside wall surface of the second transition sleeve 422；

Execution system in the present embodiment further includes the elastic component 6 being vertically arranged.Elastic component 6 applies direction to support 32 The biasing force in 41 direction of the first rotary shaft.Regardless of driving the first drive rod 31 to do with ovable valve stem using hydraulic medium or mechanical system When descending motion, when stem movement to minimum point, corresponding valve is in the open state, and elastic component 6 is in confined state；When need When wanting Open valve, need driving stem and first that 31 bars is driven to move upwards, in the liquid that revocation acts on the first drive rod 31 Press driving force and when mechanical drive, elastic component 6 will discharge decrement, the first drive rod 31 of driving, valve rod and support 32 do to Upper movement, so that valve rapid-closing.Multiple elastic components 6 are further set, additionally it is possible to further accelerate the quick of valve It closes.That is, elastic component 6 is to support 32, the first drive rod 31 and the second transition sleeve in the active force of no other forms 422 carry out driving reset, and then are reliably closed to valve.

For example, in the present embodiment, 1 outside wall surface of first shell is equipped with first annular step, first annular step from upper and Under be successively arranged First terrace and second step face along the vertical direction；And axially connecting First terrace and second step First joint face in face；32 outside wall surface of support is equipped with the second ring-shaped step, and the second ring-shaped step is from top to bottom along the vertical direction It is successively arranged third step surface and the 4th step surface；And the second connection of axially connecting third step surface and the 4th step surface Face；

Elastic component 6 is the first spring and second spring for being coaxially set in the outside of the first drive rod 31, in the first spring Diameter is greater than the central diameter of second spring.The both ends of first spring are born against on second step face and third step surface, and are arranged In the outside of the first joint face and the second joint face；The both ends of second spring are born against in First terrace and the 4th step surface On.The common guarantee elastic reset power of above-mentioned more springs, expands the range of choice of spring, to save manufacturing cost.

As shown in Figure 3 and Figure 4, execution system provided in this embodiment further includes the installation cavity for adjusting second shell 7 The balancer 8 equal with the pressure in water environment locating for valve of body 71；Balancer 8 includes being sealingly mounted at third on lid 72 Shell 81, and the conduction pipe 83 being fixedly connected with third shell 81.

Wherein, third shell 81 has second inner chamber 82, and lid 72 is equipped with the first opening 721,81 bottom of third shell On offer with first opening 721 be interconnected second opening 815, thus will installation cavity 71 and 82 phase of second inner chamber interconnection It is logical.Conduction pipe 83 is fixedly mounted by the intercommunicating pore 814 on 81 side wall of third shell with second side wall surface, in second inner chamber 82 When being put into the hydraulic medium of preset height, intercommunicating pore 814 is located at the top of the liquid level of hydraulic medium in second inner chamber 82.

The liquid level of hydraulic medium in above-mentioned second inner chamber 82, according to driver cavities inner volume, the depth of water and hydraulic Medium parameter determines, and is obtained by calculating.Furthermore hydraulic medium should select, big and environmentally friendly hydraulic Jie of density ratio water Matter.

As shown in Figure 3 and Figure 4, in above-mentioned balancer 8, conduction pipe 83 has linkage section 831, introduction segment 832 and transition Section 833.Wherein, linkage section 831 is welded on intercommunicating pore 814, and the top of changeover portion 833 is solid along the bottom end seal of linkage section 831 Dingan County's dress, similarly, the top of introduction segment 832 is fixedly connected with the sealed bottom of changeover portion 833, the bottom of introduction segment 832 It is extended downwardly towards seabed direction.For example, sealing spiral shell by NPT between 833 three of linkage section 831, introduction segment 832 and changeover portion Line connection.

Specifically, linkage section 831 is in handstand L shape, the end part seal for the L-shaped horizontal part that stands upside down is connected to intercommunicating pore 814 On, the bottom of vertical portion and changeover portion 833 are tightly connected.The longitudinal cross-section of 833 outside wall surface of changeover portion is formed as " ten " font, To facilitate changeover portion 833 and linkage section 831 and introduction segment 832 to screw installation respectively.

Specifically, linkage section 831 and introduction segment 832 are made of different and etch-proof metal material；Changeover portion 833 It is made of nonmetallic and anticorrosion material.For example, linkage section 831 uses stainless steel material, introduction segment 832 uses copper material. Introduction segment 832 can be towards release metal ions in seawater, such as the copper ion used in the present embodiment, thus leading using copper material Entering section 832 can be with seawater corrosion resistance；And the copper ion dissolved in water has bactericidal effect, can prevent marine biofouling, into One step prevents marine organisms close to import, and causes to block from flowing in or out for second inner chamber 82 to seawater；Further, since copper The introduction segment 832 of material and the linkage section 831 of stainless steel material are two different metal materials, will if the direct connection of the two It will form primary battery and linkage section 831 or introduction segment 832 caused to corrode, thus be arranged between introduction segment 832 and changeover portion 833 It is provided with the changeover portion 833 of nonmetallic materials, can prevent from being interconnected between linkage section 831 and introduction segment 832, avoid the two shape At primary battery, to improve the service life of balancer 8.

As shown in Figure 3 and Figure 4, in above-mentioned balancer 8, third shell 81 includes the bottom plate 811 being mounted on lid 72, The side plate 812 being fixed on bottom plate 811, and the upper cover 813 being mounted in the top opening that side plate 812 surrounds.Wherein, bottom plate 811 stretch out outside side plate 812 in the horizontal direction, and the part that bottom plate 811 stretches out outside side plate 812 also passes through fastener and is fixed on lid 72 On.For example, bottom plate 811, upper cover 813 and side plate 812 are stainless steel material support, prevent in marine environment by seawater corruption Erosion；In addition, stretch out in bottom plate 811 outside side plate 812 in the horizontal direction by setting, facilitate installation personnel by bottom plate 811 and the It is fixedly mounted between two shells 7, improves the convenience of installation and removal.

As shown in Figure 3 and Figure 4, third opening is offered on the top of third shell 81 and the salable third that is plugged on is opened Chock plug 84 on mouth.Third opening is inserted with chock plug 84 by being threadedly engaged rotation, and air can be open between chock plug 84 by third Gap discharge second inner chamber 82 outside, be further ensured that the pure property of valve internal hydraulic medium environment, further increase valve Reliability.Chock plug 84 in the present embodiment selects two phase stainless steel rotation to be inserted in third opening.

As shown in Figure 3 and Figure 4, second shell 7 and third shell 81 are by being plugged on the first opening 721 and the second opening Connector 85 on 815 is tightly connected；It is interconnected to guarantee to install between cavity 71 and second inner chamber 82.The outer wall of connector 85 Face section is "T"-shaped.The horizontal part of T shape protrudes into second inner chamber 82, and the outer edge of horizontal part is weldingly fixed on third On the bottom of shell 81, the vertical portion of connector 85 is protruded into the first opening 721 of second shell 7；The vertical portion of connector 85 and the Lip ring is set between the inner wall of one opening 721.Such as lip ring is O-ring.

Above-mentioned balancer 8, wherein third shell 81 is arranged on the top of second shell 7, and seawater passes through intercommunicating pore 814 enter in second inner chamber 82, and are full of second inner chamber 82 with preset hydraulic medium.Under 8 working condition of balancer, seawater In top position, hydraulic medium is below position, the sea in second inner chamber 82 with respect to seawater under the action of its self weight Water is directly contacted with hydraulic medium top surface, and with pressure change in second inner chamber 82 and installation cavity 71, hydraulic medium is second The height and position of inner cavity 82 rises or falls, to guarantee the balance between each cavity internal pressure and Underwater Pressure.In addition, in liquid Under the block effect for pressing medium, seawater will not be mixed into installation cavity 71 with hydraulic medium, can be normal thereby executing system Operation, ensure that the high reliability of valve.

As shown in Figure 5 and Figure 6, it in the execution system of the present embodiment, is additionally provided with and finger is played to valve folding location status The switch indicating mechanism 9 being shown as, switch indicating mechanism 9 include：First transmission shaft 91, the second cylinder 92, second driving shaft 93 With indicator 94.

Wherein, the top of the second cylinder 92 is fixedly connected with the bottom end of second driving shaft 93 by pin；First transmission shaft 91 and second driving shaft 93 bottom end be arranged in the second cylinder 92；It is fixed at the top of the bottom end of first transmission shaft 91 and support 32 to connect It connects；The bottom of second driving shaft 93 is located in installation cavity 71, and top is stretched out with lid 72 and solid with one end of indicator 94 Fixed connection, the other end of indicator 94 is vacantly arranged, vertical between indicator 94 and transmission shaft to fix.

Switching instruction structure further includes the direction board being mounted on 72 top surface of lid, is separately installed with out instruction on direction board Mark 951 and pass indicateing arm 952.The free end of indicator 94 is respectively provided with two kinds that indicateing arm 951 and pass indicateing arm 952 are opened in instruction Extreme position.

It is provided with third guide part in the outside wall surface of the first transmission shaft 91, and is arranged on 5 inner wall of the first cylinder Third guide chute is offered, third guide part is inserted into correspondingly in third guide chute, and third guide chute spiral is prolonged Stretch setting.For example, third guide part is pin, so that pin is along helicla flute when support 32 moves up and down along the vertical direction When rising or declining, pin drives 92 pivoting of the second cylinder, and then the free end rotation of indicator 94, and the folding to valve Accurately indicated.

A kind of execution system for driving valve to open and close provided in this embodiment has hydraulic-driven and Mechanical Driven two Kind working method.When hydraulic drive mechanism breaks down, the unlatching of valve or closure can be carried out by Mechanical Driven Control.

In hydraulic driving process, the execution system operation acts process in the present embodiment is as follows：

(1) when needing Open valve：Firstly, hydraulic medium flows into upper cavity 111 along hydraulic inlet channel 12, upper Under the driving effect of the medium power of 111 hydraulic medium of cavity, linkage block 2 moves vertically downwards；Then, linkage block 2 with The limiting section 311 of first drive rod 31 drives against linkage and is fixedly connected with valve rod with 31 bottom end of the first drive rod along vertical side To moving downward；Finally, stopping the input hydraulic pressure medium into upper cavity 111, so far at valve when valve rod reaches open position In open state.

(2) when needing to close valve：Firstly, opening hydraulic output channel 13, hydraulic medium can be flowed out along hydraulic output Upper cavity 111；Then, under the partial pressure of elastic component 6, support 32 drives the first drive rod 31, and then drives linkage block 2 It moves upwards along the vertical direction；Finally, when the top of the second transition sleeve 422 is resisted against the bottom surface of First Transition set 421, Valve rod is in the closed position, and the top of linkage block 2 and the inner wall of first inner chamber lean, and so far valve is in close state.

During Mechanical Driven, the execution system operation acts process in the present embodiment is as follows；

(1) when needing Open valve, firstly, the first driver drives the second rotary shaft 43 to rotate and drives deceleration mechanism And first rotary shaft 41 rotate, then, First Transition set 421 slides vertically downwards, and First Transition set 421 is against the Two transition sleeves 422 and the first drive rod 31 move downward, finally, stop operating the first driving when valve rod reaches open position Device, so far valve is in the open state.

(2) when needing to close valve, firstly, first the second rotary shaft of driver drives 43 reversely rotates, First Transition 421 upward sliding in the vertical direction of set, under the action of the biasing force of elastic component 6, the second transition sleeve 422 be always held at The state that the bottom end of First Transition set 421 abuts each other, and 421 upward slidings, then, the first drive rod 31 are covered with First Transition Band ovable valve stem moves upwards, finally, valve rod accordingly reaches closing when the first driver is unable to drive the rotation of the first rotary shaft 41 Position, so far valve is in close state.

Execution system provided in this embodiment for driving valve to open and close, in the movement of hydraulic medium driving stem, liquid Pressure medium is passed through in upper cavity 111 by medium channel, drives linkage block 2 to move downward under the driving force of medium, linkage block 2 Bottom abutted with the limiting section 311 of the first drive rod 31 so that the first drive rod 31 and linkage block 2 move synchronously；In machine When tool drives, since the first drive rod 31 is slidably arranged relative to linkage block 2, linkage block 2 is not driven power again, will not send out Raw change in location and remain motionless in the original location, when driving mechanism drives the first drive rod 31 to move up and down, linkage block 2 with The limiting section 311 of first drive rod 31 separates, and when the first drive rod 31 moves up and down, not will drive linkage block 2 and goes up and down Movement to reduce the friction level between the outer peripheral sidewall wall surface of linkage block 2 and the inner surface of first shell 1, and then reduces The probability in gap is generated between the side wall of linkage block 2 and the inner wall of first shell 1, thus improve in hydraulic-driven, it is hydraulic Medium controls the movement position of the first drive rod 31, so that the first drive rod 31 drives stem movement in place, it is real The normally-open or closing of existing valve, improves the reliability for executing the folding of system control valve door.

Embodiment 2

The present embodiment provides a kind of execution systems for driving valve to open and close, and are used to drive with what is provided in embodiment 1 The execution system of movable valve folding is compared, and is in place of existing difference,

The variation of position is arranged in intercommunicating pore 814, can be set on the top wall surface of third shell 81, equally can satisfy Seawater flows into second inner chamber 82 along intercommunicating pore 814, and the pressure of seawater and the oil pressure in second inner chamber 82 maintain pressure balance, together Sample ensure that the reliability of valve.

The connection type of conduction pipe 83 and third shell 81 modes such as can also be connected through a screw thread and be fixedly connected, as long as Guarantee that seawater can smoothly import second inner chamber 82 by conduction pipe 83.

As the deformation of 83 structure of conduction pipe, the shape of linkage section 831 can be straight tube, and seawater equally can be along conduction pipe 83 flow into second inner chamber 82.

As the deformation of 83 structure of conduction pipe, introduction segment 832 can be only arranged in conduction pipe 83, and introduction segment 832 can be set Seawater is drained into second inner chamber 82 as long as guaranteeing that conduction pipe 83 can be connect with seawater for L shape.

As further deformation, it can be not provided with conduction pipe 83, it only will be extra large by the intercommunicating pore 814 on third shell 81 Water imports in the second cavity, the same intercommunicating pore for guaranteeing seawater above the liquid level being arranged in second inner chamber 82 higher than hydraulic oil 814, second inner chamber 82 is flowed into, to carry out the pressure balance in seawater and second inner chamber 82 and first inner chamber.

Embodiment 3

The present embodiment provides a kind of execution systems for driving valve to open and close, and provide in embodiment 1 or embodiment 2 The execution system for driving valve to open and close compare, be in place of existing difference：

First driver can choose any motor or other power output device, as long as guaranteeing that the first driver can be right First rotary shaft 41 carries out driving rotation, and twisting resistance is passed to first gear 442.

As the deformation of deceleration mechanism, it is not provided with the second transition wheel 444, can only rely on and be set in first gear 442 Transfer device of the First Transition wheel 443 as intermediate twisting resistance.

Embodiment 4

It is any into embodiment 3 with embodiment 1 the present embodiment provides a kind of execution system for driving valve to open and close The execution system for driving valve to open and close that a embodiment provides is compared, and is in place of existing difference：

It can also be not provided with First Transition wheel 443 and First Transition wheel 443.Only pass through first gear 442 and the second rotation Axis 43 is fixedly connected, and first gear 442 has L-shaped structure and the outer flank of tooth, wherein L-shaped horizontal part and the second rotary shaft 43 are solid Fixed connection, the vertical portion of L-shaped structure and the outer flank of tooth are rotatablely connected, and the outer flank of tooth and the outside of second gear 441 are engaged, equally Deceleration mechanism can be guaranteed to the deceleration transmission of the second rotary shaft 43.

Embodiment 5

It is and any in embodiment 1 to embodiment 4 the present embodiment provides a kind of execution system for driving valve to open and close The execution system for driving valve to open and close that a embodiment provides is compared, and is in place of existing difference：

It can also be not provided with the second rotary shaft 43 and deceleration mechanism, the output end of the first driver can act directly on On the top of first rotary shaft 41, to transmit torque to the first rotary shaft 41.

Embodiment 6

It is any into embodiment 5 with embodiment 1 the present embodiment provides a kind of execution system for driving valve to open and close The execution system for driving valve to open and close that a embodiment provides is compared, and is in place of existing difference：

The in first guide chute in the outside wall surface of First Transition set 421, and the inner wall of the first cylinder 5 of setting One guide part, the first guide part are the vertical projections being fixed on the first cylinder 5, as long as vertical projections set is along the first guiding Sliding slot sliding.

Or first guide part setting on First Transition set 421, be correspondingly provided in the outside wall surface of the first cylinder 5 one First guide chute, the first guide part is the vertical projections being fixed on the first cylinder 5, as long as vertical projections set is along first Guide chute sliding.

As the deformation of the first guide part, the first guide part can be to be inserted in the first guiding groove, and with first Transition sleeve 421 or the pin of the first cylinder 5 fixed setting.

As the deformation of the first guide chute, the first guide chute can cover 421 outside wall surfaces or first along First Transition 5 inner wall of cylinder extends spirally setting, and the first guide part is plugged with the first guide chute one-to-one correspondence, and the first guiding is slided The guide direction of slot 421 has what is above extended along the vertical direction to divide direction, so that it is guaranteed that First Transition set 421 is in the vertical direction With displacement component, guiding role is played to the elevating movement of First Transition set 421.

The quantity of the first guide part in the present embodiment can also be two, three etc., corresponding first guide chute Quantity be also accordingly arranged, the number of guide part increases, and the stability for executing system opening and closing will also improve.

Embodiment 7

It is any into embodiment 6 with embodiment 1 the present embodiment provides a kind of execution system for driving valve to open and close The execution system for driving valve to open and close that a embodiment provides is compared, and is in place of existing difference：

The in second guide chute in the outside wall surface of second transition sleeve 422, and the inner wall of the first cylinder 5 of setting Two guide parts, the second guide part are the vertical projections being fixed on the first cylinder 5, as long as vertical projections set is along the second guiding Sliding slot sliding.

Or second guide part be arranged on the second transition sleeve 422, be correspondingly provided in the outside wall surface of the first cylinder 5 one Second guide chute, the second guide part is the vertical projections being fixed on the first cylinder 5, as long as vertical projections set is along second Guide chute sliding.

As the deformation of the first guide part, the second guide part can be to be inserted in the second guiding groove, and with second Transition sleeve 422 or the pin of the first cylinder 5 fixed setting.

As the deformation of the second guide chute, the second guide chute can be along 422 outside wall surface of the second transition sleeve or first 5 inner wall of cylinder extends spirally setting, as long as guaranteeing the groove body highs and lows of the second guide chute in vertical direction It is upper that there is difference in height, that is, it can guarantee that the second transition sleeve 422 has displacement component along the vertical direction, and then guarantee that driving mechanism will revolve Transhipment turn turns to the elevating movement of vertical direction.

The quantity of the second guide part in the present embodiment can also be two, three etc., corresponding second guide chute Quantity be also accordingly arranged, the number of guide part increases, and the stability for executing system opening and closing will also improve.

Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or It changes among the protection scope created still in utility model.

Claims (11)

1. a kind of execution system for driving valve to open and close, which is characterized in that including：

First shell (1) has first inner chamber；It offers on the side wall of the first shell (1) and is connected to the first inner chamber At least one medium channel；

Linkage block (2), periphery wall surface, which seals slidingly against, to be arranged on the wall surface of the first inner chamber, and will be in described first Chamber is divided into the upper cavity (111) and underlying lower chamber (112) being located above；The medium channel and the upper cavity (111) it is connected to；

First drive rod (31), bottom successively seal and are slidably disposed through the top of the first shell (1) and described It is protruded into after motion block (2) in the lower chamber (112)；There is horizontal direction on the periphery wall surface of the bottom of first drive rod (31) The limiting section (311) of outer extension, the limiting section (311) be used for by the linkage block (2) be blocked in the limiting section (311) with In region between the top of the first shell (1)；The bottom of first drive rod (31) is used for the valve rod of connecting valve；

Driving mechanism is arranged on the top of first drive rod (31), for driving first drive rod (31) to rise Drop movement.

2. the execution system according to claim 1 for driving valve to open and close, which is characterized in that the driving mechanism packet It includes

First driver；

First rotary shaft (41), top by first driver driving and rotate；

Transition components, bottom are fixed on the top of first drive rod (31), and top is connected to first rotation In the outside wall surface of axis (41)；The transition components are used to convert the rotary motion of first rotary shaft (41) to the liter of straight line Drop movement.

3. the execution system according to claim 2 for driving valve to open and close, which is characterized in that the transition components packet It includes

The First Transition set (421) being threadedly engaged in the outside wall surface of first rotary shaft (41)；Described first is fixed on to drive The second transition sleeve (422) on the top of lever (31)；

The bottom of the First Transition set (421) is resisted against on the top of second transition sleeve (422)；

The bottom of first rotary shaft (41) is protruded into the inner cavity of second transition sleeve (422), and is driven with described first Spacing needed for being reserved between the top of bar (31).

4. the execution system according to claim 3 for driving valve to open and close, which is characterized in that

It further include being fixedly installed relative to the first shell (1) and positioned at first of the top of first drive rod (31) Body (5)；First cylinder (5) cover the First Transition set (421) and the second transition sleeve (422) outside.

5. the execution system according to claim 4 for driving valve to open and close, which is characterized in that the driving mechanism is also Including

The opening up on any wall surface in the outside wall surface of the First Transition set (421) and the inner wall of first cylinder (5) There is at least one first guide chute, and setting is in the outside wall surface and first cylinder (5) of the First Transition set (421) The first guide part in inner wall on another wall surface, first guide part is inserted into first guiding correspondingly to be slided In slot, vertically linearly or helically line extends first guide chute；And/or

The opening up on any wall surface in the outside wall surface of second transition sleeve (422) and the inner wall of first cylinder (5) There is at least one second guide chute, and setting is in the outside wall surface and first cylinder (5) of second transition sleeve (422) The second guide part in inner wall on another wall surface, second guide part is inserted into second guiding correspondingly to be slided In slot, vertically linearly or helically line extends second guide chute.

6. the execution system according to claim 4 or 5 for driving valve to open and close, which is characterized in that further include fixing Support (32) on the top of first drive rod (31)；The support (32) is located at first cylinder (5) outside, described It is surrounded between the inner wall of support (32) and the outside wall surface of second transition sleeve (422) for first cylinder (5) insertion Space；

It further include at least one elasticity being vertically arranged between the support (32) and the outside wall surface of the first shell (1) Part (6), the elastic component (6) apply the biasing force towards the first rotary shaft (41) direction to the support (32).

7. the execution system according to claim 4 or 5 for driving valve to open and close, which is characterized in that the driving machine Structure further includes

The second rotary shaft (43) on first rotary shaft (41) is set, and the top of second rotary shaft (43) is by described The driving of first driver and rotate；And by the top of the bottom of second rotary shaft (43) and first rotary shaft (41) The deceleration mechanism being connected；

The deceleration mechanism includes the second gear (441) that is coaxially socketed on the second rotary shaft (43) bottom, and with institute State the first gear (442) being fixedly connected at the top of the first rotary shaft (41), the outside wall surface of the second gear (441) with it is described The outside wall surface of first gear (442) is engaged.

8. the execution system according to claim 7 for driving valve to open and close, which is characterized in that the deceleration mechanism is also Including

First Transition wheel (443) below the second gear (441) and first gear (442), the First Transition wheel (443) it is socketed on the top of first rotary shaft (41)；The top of first rotary shaft (41) passes through first mistake Ferry boat (443) is connect with the first gear (442).

9. the execution system according to any one of claims 1-5 for driving valve to open and close, which is characterized in that also wrap Include the second shell (7) being set in the outside wall surface of the first shell (1)；

Surrounded between the second shell (7) and the first shell (1) installation cavity (71), first drive rod (31) and The driving mechanism is installed in the installation cavity (71)；

The execution system further includes for adjusting the pressure in installation cavity (71) and in water environment locating for the valve The equal balancer of power (8).

10. the execution system according to claim 9 for driving valve to open and close, which is characterized in that the second shell (7) the first opening (721) are offered on top；

The balancer (8) includes

Third shell (81), is sealingly mounted on the top of the second shell (7)；The third shell (81) has in second Chamber (82), the bottom of the third shell (81) offer the second opening (815) being connected to first opening (721)；Institute It states and offers intercommunicating pore (814) on the side wall and/or top of third shell (81), be put into the installation cavity (71) default When the hydraulic medium of height, the intercommunicating pore (814) is located at the top of the liquid level of hydraulic medium in installation cavity (71)；And

Positioned at the conduction pipe (83) of the third shell (81) outside, the conduction pipe (83), which has, is sealingly mounted at the intercommunicating pore (814) linkage section (831) on, and the introduction segment (832) being sealingly mounted on the bottom of the linkage section (831), it is described to lead The bottom for entering section (832) extends downwardly.

11. the execution system according to claim 10 for driving valve to open and close, which is characterized in that the linkage section (831) it is made with the introduction segment (832) of different and etch-proof metal material；

The conduction pipe (83) further includes connecting the sealing of the top of the bottom of the linkage section (831) and the introduction segment (832) The changeover portion (833) connect, the changeover portion (833) are made of nonmetallic and anticorrosion material.