CN107701747A - Gate valve structure and fluid cut-off device - Google Patents

Gate valve structure and fluid cut-off device Download PDF

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Publication number
CN107701747A
CN107701747A CN201711168256.3A CN201711168256A CN107701747A CN 107701747 A CN107701747 A CN 107701747A CN 201711168256 A CN201711168256 A CN 201711168256A CN 107701747 A CN107701747 A CN 107701747A
Authority
CN
China
Prior art keywords
flashboard
valve
valve body
bonnet
sealing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711168256.3A
Other languages
Chinese (zh)
Inventor
丁学峰
李群
蔡雷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yancheng City Dafeng Okay Fluid Machinery Co Ltd
Original Assignee
Yancheng City Dafeng Okay Fluid Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yancheng City Dafeng Okay Fluid Machinery Co Ltd filed Critical Yancheng City Dafeng Okay Fluid Machinery Co Ltd
Priority to CN201711168256.3A priority Critical patent/CN107701747A/en
Publication of CN107701747A publication Critical patent/CN107701747A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding Valves (AREA)

Abstract

The invention provides a kind of gate valve structure and fluid cut-off device, it is related to the technical field of pipeline fittings equipment, including valve body, valve seat, the first flashboard, the second flashboard；The inwall of valve seat and valve body is connected, and the first flashboard and the second flashboard can be connected with valve seat, for controlling the keying of the valve inner；It is brought into close contact by the flashboard of sealing first and the second flashboard, and when the flowing of liquid in hydraulic pressure fluctuation or valve body, first flashboard can be slided by sealing along relative between the second flashboard, the sealing processing technology for alleviating more flashboards present in prior art is complicated, cost is higher, and the fixed position between more flashboards requires high, can not realize adaptive adjustment, and can cause poorly sealed reality be present between more flashboards, there is the technical problem of seepage in valve；Uniform force between the first flashboard and the second flashboard is realized, can realize in certain angle and voluntarily adjust, and realizes that cost is low, simple in construction and good airproof performance technique effect.

Description

Gate valve structure and fluid cut-off device
Technical field
The present invention relates to pipeline fittings equipment technical field, more particularly, to a kind of gate valve structure and fluid cut-off device.
Background technology
Valve is for being opened and closed pipeline, control flow direction, regulation and the parameter (temperature, pressure and flow) of control pumped (conveying) medium Pipeline fittings, be the control unit in fluid delivery system, have cut-off, regulation, water conservancy diversion, prevent adverse current, voltage stabilizing, shunting or The functions such as overflow pressure relief, available for controlling empty gas and water, steam, various Korrosionsmediums, mud, oil product, liquid metal and radiation The flowing of all kinds fluids such as property medium.
Now gate valve in the art is a kind of conventional valve, and opening and closing element is flashboard, the direction of motion of flashboard and fluid side To perpendicular, in pipe-line system, fluid media (medium) that gate valve is mainly used in blocking or connected in pipeline；The flashboard of gate valve can Think single disc and multiple flashboards, for the gate valve structure of more flashboards, connected between multiple flashboards by connectors such as bolts, from And more flashboards are separated the fluid in valve body, it is achieved thereby that cut-off and the effect of water conservancy diversion.
But between more flashboards of the prior art connected by connector, and for close between more flashboards Envelope generally requires higher making processing technology, can improve processing cost, and the fixed requirement between more flashboards is more harsh in addition, When the more flashboard pressure at two ends of flashboard are excessive, angulation changes occur for more flashboards, can cause to exist between more flashboards poorly sealed real Problem, valve is caused the situation of seepage occur.
The content of the invention
It is an object of the invention to provide a kind of gate valve structure and fluid cut-off device, exist in the prior art to alleviate More flashboards sealing processing technology it is complicated, cost is higher, and the fixed position between more flashboards requires high, can not realize from Adjustment is adapted to, and can cause poorly sealed reality be present between more flashboards, the technical problem of seepage occurs in valve.
A kind of gate valve structure provided by the invention, including：Valve body, valve seat, the first flashboard, the second flashboard；
Valve seat, the first flashboard and the second flashboard may be contained within valve body, the connection of the inwall of valve seat and valve body, the first flashboard and Second flashboard can be connected with valve seat, for controlling the keying of the valve inner；
The sealing for the connection that cooperates is provided between first flashboard and the second flashboard, sealing is used to control the first lock Plate is relative with the second flashboard to be slided, so that the first flashboard and the second flashboard can automatically adjust sealing.
Further, sealing is arranged to circular arc projection and groove；
First flashboard is provided with circular arc projection close to one end of the second flashboard, and the second flashboard corresponds to the raised position of circular arc and set Groove is equipped with, circular arc is raised to be connected with groove, so that the first flashboard can be along the raised diameter of circular arc relative to the second lock Plate is slided, and sealing is voluntarily reconciled for the first flashboard and the second flashboard.
Further, the first flashboard and the second flashboard are provided with multiple, multiple first flashboards and multiple second flashboard intervals Set, and adjacent two are provided with sealing between the first flashboard and the second flashboard.
Further, the both ends of valve body are provided with flange.
Further, a kind of gate valve structure provided by the invention, in addition to bonnet；
Bonnet is arranged at the top of valve body, and bonnet is connected by seal receptacle with valve body.
Further, bonnet is bolted with valve body.
Further, a kind of gate valve structure provided by the invention, in addition to adjusting means；
Adjusting means is arranged at the one end of bonnet away from valve body, and adjusting means one end can extend into valve body by bonnet Interior, adjusting means is connected with flashboard, is moved for adjusting flashboard relative to valve seat, with the keying inside application valve body.
Further, adjusting means includes：Hand-operated, driving section and valve rod；
One end of valve rod is connected with hand-operated, and the other end of valve rod is stretched into valve body through bonnet, and valve rod connects with flashboard Connect；Valve rod is connected by driving section with bonnet, and hand-operated is used for band ovable valve stem and rotated, and valve rod is turned by driving section relative to bonnet It is dynamic, so that valve rod moves linearly relative to valve body.
Further, driving section is arranged to nut；
Nut is fixedly connected with bonnet, and stem exterior is provided with screw thread, and valve rod is connected through a screw thread with nut, so that valve rod Can linearly it be moved relative to bonnet.
A kind of fluid cut-off device provided by the invention, including described gate valve structure.
A kind of gate valve structure provided by the invention, including：Valve body, valve seat, the first flashboard, the second flashboard；Valve seat, the first lock Plate and the second flashboard may be contained within valve body, and the inwall connection of valve seat and valve body, the first flashboard and the second flashboard can connect with valve seat Connect, for controlling the keying of the valve inner；The sealing for the connection that cooperates is provided between first flashboard and the second flashboard Portion, sealing is used to control the first flashboard is relative with the second flashboard to slide, so that the first flashboard can automatically adjust with the second flashboard Sealing；It is brought into close contact by the flashboard of sealing first and the second flashboard, and when the stream of liquid in hydraulic pressure fluctuation or valve body When dynamic, the first flashboard can be slided by sealing along relative between the second flashboard, be alleviated more present in prior art The sealing processing technology of flashboard is complicated, and cost is higher, and the fixed position between more flashboards requires high, can not realize adaptive Adjustment, and can cause poorly sealed reality be present between more flashboards, there is the technical problem of seepage in valve；Realize the first flashboard with Uniform force between second flashboard, it can realize in certain angle and voluntarily adjust, and it is low to realize cost, it is simple in construction and close The good technique effect of envelope property.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the overall structure diagram of gate valve structure provided in an embodiment of the present invention；
Fig. 2 is the side overall structure diagram of gate valve structure provided in an embodiment of the present invention；
Fig. 3 is the partial enlargement structural representation of gate valve structure provided in an embodiment of the present invention；
Fig. 4 is the structural representation of the sealing of gate valve structure provided in an embodiment of the present invention.
Icon：100- valve bodies；200- valve seats；The flashboards of 300- first；The flashboards of 400- second；500- sealings；501- circular arcs It is raised；502- grooves；600- flanges；700- bonnets；800- adjusting meanss；801- hand-operateds；802- driving sections；803- valve rods.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, such as occur term " " center ", " on ", " under ", "left", "right", " vertical ", " level ", " interior ", " outer " etc., orientation or position relationship indicated by it are based on orientation shown in the drawings or position Relation, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must have There is specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, as occurred Term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to which explanation, unless otherwise clearly defined and limited, term " peace such as occurs Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, It can be the connection of two element internals.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.
Fig. 1 is the overall structure diagram of gate valve structure provided in an embodiment of the present invention；Wherein, valve seat 200, the first flashboard 300 and second flashboard 400 may be contained within valve body 100.
Fig. 2 is the side overall structure diagram of gate valve structure provided in an embodiment of the present invention；Wherein, bonnet 700 and valve Body 100 connects.
Fig. 3 is the partial enlargement structural representation of gate valve structure provided in an embodiment of the present invention；Wherein, valve rod 803 and lock Plate connects.
Fig. 4 is the structural representation of the sealing 500 of gate valve structure provided in an embodiment of the present invention；Wherein, sealing 500 It is arranged to circular arc projection 501 and groove 502.
As Figure 1-4, a kind of gate valve structure that the present embodiment provides, including：Valve body 100, valve seat 200, the first flashboard 300th, the second flashboard 400；Valve seat 200, the first flashboard 300 and the second flashboard 400 may be contained within valve body 100, valve seat 200 and valve The inwall connection of body 100, the first flashboard 300 and the second flashboard 400 can be connected with valve seat 200, for controlling in the valve body 100 The keying in portion；The sealing 500 for the connection that cooperates, sealing 500 are provided between first flashboard 300 and the second flashboard 400 For controlling the 400 relative slip of the first flashboard 300 and the second flashboard, so that the first flashboard 300 can be adjusted automatically with the second flashboard 400 Section sealing.
Wherein, the connected mode of valve seat 200 and valve body 100 can be a variety of, such as：Interference fit, clamping, threaded connection Deng it is preferred that the connected mode of valve seat 200 and valve body 100 is clamping.
The cross sectional shape of valve seat 200 can be a variety of, such as：Ellipse, circle, rectangle etc., it is preferred that valve seat 200 Cross sectional shape is circle.
The quantity of valve seat 200 can be two, three, four etc., it is preferred that the quantity of valve seat 200 is two, two valve seats 200 are respectively relative to the first flashboard 300 and the both sides of the second flashboard 400 are located in valve body 100, and two valve seats 200 can respectively with First flashboard 300 and the second flashboard 400 connect, so that the first flashboard 300 and the second flashboard 400 can pass through two valve seats respectively The passage of 200 sealed valve bodies 100.
First flashboard 300 and the second flashboard 400 can slide relative to valve seat 200, when the first flashboard 300 and the second flashboard 400 with valve seat 200 when being connected, and now valve body 100 is closed；When the first flashboard 300 and the second flashboard 400 and valve seat During 200 separation, now valve body 100 is in the state opened, so as to control the first flashboard 300 and the second flashboard 400 and valve The connection of seat 200 is with separating, to control the keying inside the valve body 100.
Connected mode between first flashboard 300 and the second flashboard 400 can be a variety of, such as：Pin key, bolt, connection Plate etc., it is preferred that the connected mode between the first flashboard 300 and the second flashboard 400 is bolt connection.
Further, the both ends of valve body 100 are provided with flange 600.
The connected mode of flange 600 and valve body 100 can be a variety of, such as：Welding, riveting, bolt connection etc., preferably The connected mode of flange 600 and valve body 100 is welding.
Sealing 500 between the first flashboard 300 between the second flashboard 400, the first flashboard 300 and the second flashboard 400 by sealing 500 can more preferable gluing, sealing, when hydraulic pressure fluctuation or valve body 100 in liquid flowing when, the first lock When the pressure that plate 300 is born changes and slided, sealing 500 can cause the first flashboard 300 relative to the second flashboard 400 slide, so that on certain pressure-based, sealing 500 can ensure the first flashboard 300 and the second flashboard 400 uniform forces, and can realize in certain angle and voluntarily adjust.
Wherein, for the determination of certain angle scope, different concrete conditions, or the size of gate valve structure can be directed to And determine.
A kind of gate valve structure that the present embodiment provides, including：Valve body 100, valve seat 200, the first flashboard 300, the second flashboard 400；Valve seat 200, the first flashboard 300 and the second flashboard 400 may be contained within valve body 100, the inwall of valve seat 200 and valve body 100 Connection, the first flashboard 300 and the second flashboard 400 can be connected with valve seat 200, for controlling the keying inside the valve body 100；The The sealing 500 for the connection that cooperates is provided between one flashboard 300 and the second flashboard 400, sealing 500 is used to control first 300 and second flashboard of flashboard, 400 relative slip, so that the first flashboard 300 and the second flashboard 400 can automatically adjust sealing；Pass through Sealing 500 causes the first flashboard 300 and the second flashboard 400 to be brought into close contact, and when liquid in hydraulic pressure fluctuation or valve body 100 During flowing, the first flashboard 300 can be slided by sealing 500 along relative between the second flashboard 400, alleviate prior art Present in more flashboards sealing processing technology it is complicated, cost is higher, and the fixed position between more flashboards requires high, can not Adaptive adjustment is realized, and can cause poorly sealed reality be present between more flashboards, the technical problem of seepage occurs in valve；Realize Uniform force between first flashboard 300 and the second flashboard 400, it can realize in certain angle and voluntarily adjust, and realize into This low, simple in construction and good airproof performance technique effect.
On the basis of above-described embodiment, further, a kind of sealing 500 for gate valve structure that the present embodiment provides is set It is set to circular arc projection 501 and groove 502；First flashboard 300 is provided with circular arc projection 501 close to one end of the second flashboard 400, the The position of two flashboards, 400 corresponding circular arc projection 501 sets fluted 502, and circular arc projection 501 is connected with groove 502, so that First flashboard 300 can slide along the diameter of circular arc projection 501 relative to the second flashboard 400, for the first flashboard 300 and second Flashboard 400 voluntarily reconciles sealing.
It can be formed in one between circular arc projection 501 and the first flashboard 300, can also be that two parts connect, wherein, Circular arc projection 501 and the connected mode of the first flashboard 300 can be a variety of, such as：Welding, bonding, riveting etc., it is preferred that circle Arc projection 501 and the connected mode of the first flashboard 300 are welding.
Detailed process, set due to being provided with circular arc projection 501 on the first flashboard 300, and on the second flashboard 400 fluted 502, the first flashboard 300 and the second flashboard 400 are connected by circular arc projection 501 with groove 502, so as to when the first flashboard 300 or the fluid of the either end of the second flashboard 400 fluctuate, so as to cause hydraulic pressure to fluctuate, now the first flashboard 300 or Two flashboards 400 can produce fluctuation due to the change of pressure, now spherical close by being formed between circular arc projection 501 and groove 502 Envelope, so that when the first flashboard 300 or the either end of the second flashboard 400 move, circular arc projection 501 is with driving the first flashboard 300 Or second flashboard 400 another slide together, realize the technique effect voluntarily adjusted in certain angle, ensure that the first lock The uniform force of 300 or second flashboard of plate 400.
Wherein, certain angle is the diameter range of circular arc projection 501 or groove 502.
The cross sectional shape of circular arc projection 501 can be major arc sector, minor arc sector, semicircle etc., it is preferred that circular arc is raised 501 cross sectional shape is semicircle.
Further, the first flashboard 300 and the second flashboard 400 are provided with multiple, multiple first flashboards 300 and multiple second Flashboard 400 is arranged at intervals, and is provided with sealing 500 between adjacent two the first flashboards 300 and the second flashboard 400.
The both sides of multiple first flashboards 300 can be respectively arranged with circular arc projection 501 and groove 502, the second adjacent lock Plate 400 can be provided with corresponding groove 502 and circular arc projection 501 so that two adjacent the first flashboards 300 and the second flashboard It can be connected between 400 by circular arc projection 501 and groove 502.
The gate valve structure that the present embodiment provides, circular arc projection 501 and groove 502 are arranged to by sealing 500, when first The fluid of the either end of 300 or second flashboard of flashboard 400 fluctuates, so as to cause hydraulic pressure to fluctuate, by circular arc projection 501 with Spherical sealed is formed between groove 502, so that when the first flashboard 300 or the either end of the second flashboard 400 move, circular arc is raised 501 slide together with another with driving the first flashboard 300 or the second flashboard 400, realize what is voluntarily adjusted in certain angle Technique effect, it ensure that the first flashboard 300 or the uniform force of the second flashboard 400.
On the basis of upper embodiment, further, the gate valve structure that the present embodiment provides, in addition to bonnet 700；Bonnet 700 are arranged at the top of valve body 100, and bonnet 700 is connected by seal receptacle with valve body 100.
The connected mode of bonnet 700 and valve body 100 can be a variety of, such as：Riveting, pin connection, bolt connection etc., compared with Goodly, bonnet 700 is bolted with valve body 100.
The junction of bonnet 700 and valve body 100 is provided with seal receptacle, formed with cavity between bonnet 700 and valve body 100, It can ensure that the cavity of bonnet 700 and valve body 100 is in be fully sealed.
Further, the gate valve structure that the present embodiment provides, in addition to adjusting means 800；Adjusting means 800 is arranged at valve The one end of lid 700 away from valve body 100, and the one end of adjusting means 800 can be extend into valve body 100 by bonnet 700, adjusting means 800 are connected with flashboard, are moved for adjusting flashboard relative to valve seat 200, with the keying inside application valve body 100.
Further, adjusting means 800 includes：Hand-operated 801, driving section 802 and valve rod 803；One end of valve rod 803 with Hand-operated 801 is connected, and the other end of valve rod 803 is stretched into valve body 100 through bonnet 700, and valve rod 803 is connected with flashboard；Valve Bar 803 is connected by driving section 802 with bonnet 700, and hand-operated 801 is used for band ovable valve stem 803 and rotated, and valve rod 803 passes through transmission Portion 802 rotates relative to bonnet 700, so that valve rod 803 moves linearly relative to valve body 100.
Wherein, hand-operated 801 is arranged to handwheel, and handwheel is rotated by band ovable valve stem 803, because valve rod 803 passes through transmission Portion 802 is connected with bonnet 700, and driving section 802 can cause handwheel to be transferred to the rotation of valve rod 803 and be converted into linear motion, from And interior intracavitary of the valve rod 803 along bonnet 700 and valve body 100 can be allowd to pump.
Valve rod 803 can be a variety of with the connected mode of the first flashboard 300 and the second flashboard 400, such as：Clamping, screw thread Connection, mode connects for screw etc., it is preferred that the connected mode of the flashboard 300 of valve rod 803 and first and the second flashboard 400 is clamping.
The side of first flashboard 300 and the connection of the second flashboard 400 is provided with standing groove, and valve rod 803 is close to the first flashboard 300 and second one end of flashboard 400 be provided with T-shaped projection, when T-shaped is raised with standing groove clamping so that valve rod 803 can be simultaneously The first flashboard 300 and the second flashboard 400 is driven to move up and down.
Further, driving section 802 is arranged to nut；Nut is fixedly connected with bonnet 700, is provided with outside valve rod 803 Screw thread, valve rod 803 are connected through a screw thread with nut, so that valve rod 803 can linearly move relative to bonnet 700；
Wherein, the connected mode of nut and valve rod 803 is trapezoidal thread so that valve rod 803 can be according to the screw thread of nut Realize linear motion.
Nut can be a variety of with the connected mode of bonnet 700, such as：Clamping, bonding, welding etc., it is preferred that nut and valve The connected mode of lid 700 is clamping.
The gate valve structure that the present embodiment provides, is connected by bonnet 700 with valve body 100, and bonnet 700 and valve body 100 Between be provided with seal receptacle, ensure that the sealing in the cavity that bonnet 700 and valve body 100 are formed；In addition, pass through adjusting means 800 include：Hand-operated 801, driving section 802 and valve rod 803, valve rod 803 are connected with the first flashboard 300 and the second flashboard 400, from And manually the rotation in portion 801 is so that rotation can be converted into linear motion by driving section 802 so that valve rod 803 can band Dynamic first flashboard 300 and the second flashboard 400 move up and down, and realize the keying of valve seat 200 so that design is more complete, more It is practical.
A kind of fluid cut-off device that the present embodiment provides, including described gate valve structure；There is provided due to the present embodiment Fluid cut-off device is identical with the technique effect of the gate valve structure of above-mentioned offer, and here is omitted.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology The scope of scheme.

Claims (10)

  1. A kind of 1. gate valve structure, it is characterised in that including：Valve body, valve seat, the first flashboard, the second flashboard；
    The valve seat, first flashboard and second flashboard may be contained within the valve body, the valve seat and the valve body Inwall connection, first flashboard and second flashboard can be connected with the valve seat, for controlling the valve inner Open and close；
    The sealing for the connection that cooperates is provided between first flashboard and second flashboard, the sealing is used to control First flashboard slip relative with second flashboard is made, so that first flashboard can automatically adjust with second flashboard Sealing.
  2. 2. gate valve structure according to claim 1, it is characterised in that the sealing is arranged to circular arc projection and groove；
    First flashboard is provided with described in the circular arc is raised, and second flashboard is corresponding close to one end of second flashboard The raised position of circular arc is provided with the groove, and the circular arc is raised to be connected with the groove, so that first flashboard Can be along the raised diameter of the circular arc relative to second gate panel slide, for first flashboard and second flashboard Voluntarily reconcile sealing.
  3. 3. gate valve structure according to claim 2, it is characterised in that first flashboard and second flashboard are provided with Multiple, multiple first flashboards are arranged at intervals with multiple second flashboards, and adjacent two first flashboards and institute State and be provided with the sealing between the second flashboard.
  4. 4. gate valve structure according to claim 1, it is characterised in that the both ends of the valve body are provided with flange.
  5. 5. according to the gate valve structure described in claim any one of 1-4, it is characterised in that also including bonnet；
    The bonnet is arranged at the top of the valve body, and the bonnet is connected by seal receptacle with the valve body.
  6. 6. gate valve structure according to claim 5, it is characterised in that the bonnet is bolted with the valve body.
  7. 7. gate valve structure according to claim 5, it is characterised in that also including adjusting means；
    The adjusting means is arranged at the one end of the bonnet away from the valve body, and described adjusting means one end can be by described Bonnet is extend into the valve body, and the adjusting means is connected with the flashboard, for adjusting the flashboard relative to the valve Seat is mobile, to control the keying of the valve inner.
  8. 8. gate valve structure according to claim 7, it is characterised in that the adjusting means includes：Hand-operated, driving section and Valve rod；
    One end of the valve rod is connected with the hand-operated, and the other end of the valve rod stretches into the valve body through the bonnet It is interior, and the valve rod is connected with the flashboard；The valve rod is connected by the driving section with the bonnet, and the hand-operated is used In driving the valve rod to rotate, the valve rod is rotated by the driving section relative to the bonnet, so that the valve rod is relative Moved linearly in the valve body.
  9. 9. gate valve structure according to claim 8, it is characterised in that the driving section is arranged to nut；
    The nut is fixedly connected with the bonnet, and the stem exterior is provided with screw thread, and the valve rod passes through with the nut Threaded connection, so that the valve rod can linearly move relative to the bonnet.
  10. 10. a kind of fluid cut-off device, it is characterised in that including the gate valve structure as described in claim any one of 1-9.
CN201711168256.3A 2017-11-21 2017-11-21 Gate valve structure and fluid cut-off device Pending CN107701747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711168256.3A CN107701747A (en) 2017-11-21 2017-11-21 Gate valve structure and fluid cut-off device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711168256.3A CN107701747A (en) 2017-11-21 2017-11-21 Gate valve structure and fluid cut-off device

Publications (1)

Publication Number Publication Date
CN107701747A true CN107701747A (en) 2018-02-16

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Application Number Title Priority Date Filing Date
CN201711168256.3A Pending CN107701747A (en) 2017-11-21 2017-11-21 Gate valve structure and fluid cut-off device

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CN (1) CN107701747A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB851288A (en) * 1957-09-20 1960-10-12 Leland Stanford Hamer Improvements in or relating to fluid-flow controlling gate valves
CN2130976Y (en) * 1992-06-16 1993-04-28 李鹏程 Wedge-shaped gate valve capable of auto-regulating levels of two gate plates
CN2505655Y (en) * 2001-08-23 2002-08-14 刘金禄 Wedge automatic levelling oil seal gate valve
CN207421370U (en) * 2017-11-21 2018-05-29 盐城市大丰奥凯流体机械有限公司 Gate valve structure and fluid cut-off device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB851288A (en) * 1957-09-20 1960-10-12 Leland Stanford Hamer Improvements in or relating to fluid-flow controlling gate valves
CN2130976Y (en) * 1992-06-16 1993-04-28 李鹏程 Wedge-shaped gate valve capable of auto-regulating levels of two gate plates
CN2505655Y (en) * 2001-08-23 2002-08-14 刘金禄 Wedge automatic levelling oil seal gate valve
CN207421370U (en) * 2017-11-21 2018-05-29 盐城市大丰奥凯流体机械有限公司 Gate valve structure and fluid cut-off device

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