CN104712781B - Pneumatic vacuum gate valve - Google Patents

Pneumatic vacuum gate valve Download PDF

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Publication number
CN104712781B
CN104712781B CN201510110894.4A CN201510110894A CN104712781B CN 104712781 B CN104712781 B CN 104712781B CN 201510110894 A CN201510110894 A CN 201510110894A CN 104712781 B CN104712781 B CN 104712781B
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CN
China
Prior art keywords
valve
vacuum gate
sealing plate
gate valve
plate
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.)
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Application number
CN201510110894.4A
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Chinese (zh)
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CN104712781A (en
Inventor
梁跃跃
张前淞
秦杰
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SHANGHAI LEIHANG MACHINERY MANUFACTURING Co Ltd
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SHANGHAI LEIHANG MACHINERY MANUFACTURING Co Ltd
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Priority to CN201510110894.4A priority Critical patent/CN104712781B/en
Publication of CN104712781A publication Critical patent/CN104712781A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02Gate 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30Details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston

Abstract

The invention relates to the technical field of valves, in particular to a pneumatic vacuum gate valve. The pneumatic vacuum gate valve is provided to improve the defects that in the prior art, the structure is complex, the installation is cumbersome, the seal effect is not good, the cost is high, and a vacuum gate valve is not suitable for special-shaped sealing plates. According to the technical scheme, the pneumatic vacuum gate valve comprises the vacuum gate valve which comprises a valve body, a valve element which makes reciprocating motion in the valve body, and a sealing plate A and a sealing plate B which are located in the valve element; the pneumatic vacuum gate valve is characterized by further comprising a cylinder. Compared with the prior art, the pneumatic vacuum gate valve has the advantages that a pneumatic principle is utilized, the structure is simple, the installation is convenient, the seal effect is good, and the pneumatic vacuum gate valve is suitable for various special-shaped sealing plates.

Description

Pneumatic vacuum push-pull valve
Technical field
The present invention relates to valve technology field, more particularly to Pneumatic vacuum push-pull valve.
Background technology
In vacuum system, vacuum gate valve is requisite building block between any two adjacent vacuum room, its Effect is: when needing single vacuum chamber is operated or safeguards, two neighboring vacuum chamber is completely cut off, makes the true of vacuum interior Air atmosphere is not destroyed.
The vacuum gate valve commonly used at present is turning over type structure, and turning over type vacuum gate valve leads in the indoor workpiece of vacuum Vacuum gate valve is set at hole, and this vacuum gate valve is mainly a baffle plate, the baffle plate top top surface indoor with vacuum is hinged, when When vacuum gate valve is closed, turn under baffle plate, its side is blocked workpiece through-hole and realized sealing, when vacuum gate valve is opened, gear Plate is closely attached on the indoor top surface of vacuum.However, the vacuum gate valve of this structure is convertible because baffle plate adopts, shared space is relatively Greatly, because baffle plate blocks workpiece through-hole by deadweight when vacuum gate valve is closed, baffle bottom does not have corresponding fixed mechanism, and it is close Envelope effect is bad;In addition, the vacuum gate valve of this structure must be located at internal vacuum chamber, its difficulty of processing is big, and baffle plate is yielding, Daily maintenance is also extremely difficult.
Another kind of vacuum gate valve common at present is Mechanical Driven push-pull valve, shown in Figure 1, and this push-pull valve passes through valve Body central drive bar and sealing plate active link, the open and close of control valve.When rod member moves up, then both sides are close Shrouding shrinks, and when rod member moves down, then struts both sides sealing plate, and is close to valve body, play sealing effectiveness.But, this knot Part needed for structure is more, and assembled complicated, and manufacturing cost is high, and in actual use, also hardly possible meets profile seal plate Demand.
Content of the invention
In order to improve in above-mentioned prior art, the complex structure of vacuum gate valve, installation is loaded down with trivial details, sealing effectiveness is undesirable, High cost, the shortcomings of be not suitable for profile seal plate, the invention provides Pneumatic vacuum push-pull valve.
The technical solution adopted in the present invention is achieved in that a kind of Pneumatic vacuum push-pull valve, including vacuum gate valve, Described vacuum gate valve include valve body 1, reciprocating valve element 11 in valve body 1, be located at valve element 11 in sealing plate a, Sealing plate b it is characterised in that: described Pneumatic vacuum push-pull valve also includes cylinder 2, and described cylinder 2 includes being provided with the first gas The cylinder upper cover 22 of pipe joint 21, the lower cover of air cylinder 24 being provided with the second gas-tpe fitting 23, two ends are gentle with cylinder upper cover 22 respectively Cylinder block 25, reciprocating piston plate 26 inside cylinder block 25, top and piston that cylinder lower cover 24 is fixedly connected The piston rod 27 that plate 26 is fixedly connected, the lower end of described piston rod 27 is flexibly connected with valve element, and described piston rod 27 bottom is provided with Spring groove 271, spring 272 is placed in spring groove 271, the tip contact piston rod 27 of described spring 272, and bottom contacts valve element 11, described piston rod 27 is hollow structure, and push rod 273 is located at the hollow space of piston rod, and described push rod 273 top is fixed with Pilot head 274, bottom passes through spring 272 and touches valve element 11;Described pilot head is provided with through hole to coordinate the hollow of push rod 273 Structure, described valve element 11 bottom also is provided with coordinating the through hole of push rod 273 so that the gas in cylinder block 25 can be successively from guide 274, push rod 273, valve element 11, enters the space that sealing plate a and sealing plate b is formed valve element 11 in, and described sealing plate a consolidates Surely it is provided with magnet steel c, described sealing plate b is fixedly installed magnet steel d, and magnet steel c and magnet steel d is disposed adjacent.
Described valve body includes upper valve body and lower valve body, and upper valve body is fixedly connected with lower valve body.
Described vacuum gate valve also includes valve base plate.
Compared with prior art, the invention has the beneficial effects as follows: utilize pneumatic principle, structure is simple, easy for installation, sealing Effect is good, be applied to all kinds of profile seal plates.
Brief description
Fig. 1 is prior art construction schematic diagram;
Fig. 2 illustrates Fig. 1 for present configuration;
Fig. 3 illustrates Fig. 2 for present configuration;
Fig. 4 is partial structural diagram 1 of the present invention;
Fig. 5 is partial structural diagram 2 of the present invention.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.As shown in Figure 2 and Figure 3, the Pneumatic vacuum plate of the present embodiment Valve, is divided into upper and lower two parts, and upper part is cylinder 2, and lower part is vacuum gate valve 1.Cylinder 2 overall by cylinder upper cover 22, Cylinder block 25, lower cover of air cylinder 24 are formed by fixedly connecting.Cylinder upper cover 22 is provided with the first gas-tpe fitting 21 connecting gas, and It is additionally provided with and arrive first groove 221.Lower cover of air cylinder 24 is again provided with connecting the second gas-tpe fitting 23 of gas.Piston plate 26 is located at cylinder cylinder In body 25, its underpart is fixedly connected with piston rod 27, and meanwhile, piston rod 27 extends in vacuum gate valve 1.When connection gas Afterwards, piston plate 26 can be controlled in cylinder block by adjusting the gas flow of first gas joint 21 and second gas joint 23 Make reciprocating-piston motion in 25, also drive piston rod 27 simultaneously.Cylinder upper cover 22 and lower cover of air cylinder 24 control piston plate 26 The extreme position of movement.
Vacuum gate valve 1 is made up of valve body 1, valve element 11, sealing plate a, sealing plate b, base plate 14, sealing plate a, sealing plate b In valve element 11, by the keying of sealing plate a, the folding control valve of sealing plate b, fixedly mount one inside sealing plate a Individual magnet steel c, fixedly mounts a magnet steel d inside sealing plate b, due to magnetic force, magnet steel drives makes sealing plate a and sealing plate b tight Stick together, the inner side of magnet steel c and magnet steel d is protruded slightly compared with sealing plate a and sealing plate b, forms space.The valve body of the present embodiment 1 is spliced by bolt by upper valve body 12 and lower valve body 13.Lower cover of air cylinder 24 end portion is nested in upper valve body 12, and with Upper valve body 12 is fixedly connected.Valve element 11 is located in valve body 1, is flexibly connected with the lower end of piston rod 27.When piston rod 27 action When, band movable valve plug 11 is reciprocating in valve body 1, and meanwhile, lower cover of air cylinder 24 and valve body 1 bottom limit valve element 11 respectively Moving limit position.Piston rod 27 described in the present embodiment is flexibly connected with valve element 11, referring to shown in Fig. 4, Fig. 5, preferably Mode be piston rod 27 lower end side to being externally provided with male means, and valve element 11 is provided with the groove of cooperation, specifically, works as work When stopper rod 27 moves down, male means can continue to move to one end distance in groove, when piston rod 27 moves up, raised Device can drive groove together to move, thus when reaching piston rod 27 and moving down, also leaving the space continuing to move to, for this Space, is provided with spring 272 in the bottom of piston rod 27 and places the spring groove 271 of spring 272.Piston rod 27 is designed to hollow knot Structure, push rod 273 is located therein, and the lower end of push rod 273 passes through spring 272, and touches valve element 11.Push rod is penetrating about 273, permits Permitted gas to pass through.At the top of push rod 273, it is fixed with pilot head 274, pilot head 274 passes through piston plate 26 and exposes In cylinder block 25.This pilot head 274 is provided with passage, and this passage can be by guiding gas, from the side of pilot head 274 Face enters and goes out from lower end, subsequently enters in push rod 273.Meanwhile, valve element 11 and push rod 273 contact position, cooperation is provided with logical Hole, this through hole can introduce a gas in the space that sealing plate a and sealing plate b is formed.
Preferably, in all parts junction, should be taken into account the installation of sealing device, to ensure sealing effectiveness.
Concrete operation workflow is as follows:
Generally, due to magnetic force, sealing plate a and sealing plate b are close together by magnet steel, sealing plate a and sealing Plate b and lower valve body 13 have space, do not play sealing effectiveness.
Referring to Fig. 2, after connecting source of the gas, select the first gas-tpe fitting 21 air inlet, piston plate 26 moves down with gas pressure, Valve element 11 first touches lower valve body 13 bottom, then due to gas continues pressure, piston plate 26 extrusion spring 272, piston rod 27 Continue to move down, the through hole of pilot head 274 is projected above piston plate 26, at this moment, gas passes through through hole one tunnel down, arrives Reach sealing plate a and the gap of sealing plate b, strut sealing plate a and sealing plate b, and make sealing plate a and sealing plate b be close to lower valve Body 13, reaches sealing effectiveness.
Referring to Fig. 3, when selecting the second gas-tpe fitting 23 air inlet, sealing plate a and sealing plate b continues to be close to due to magnetic force Together, piston plate is moved up by pressure, drives piston rod 27 and valve element 11 simultaneously, also just loses sealing effectiveness.So make , present configuration is simple, easy for installation, good sealing effect, be applied to all kinds of profile seal plates.

Claims (4)

1. a kind of Pneumatic vacuum push-pull valve, including vacuum gate valve, described vacuum gate valve includes valve body (1), in valve body (1) Interior reciprocating valve element (11), be located at valve element (11) in sealing plate a, sealing plate b it is characterised in that: described is pneumatic Vacuum gate valve also includes cylinder (2), described cylinder (2) include being provided with the first gas-tpe fitting (21) cylinder upper cover (22), It is provided with the lower cover of air cylinder (24) of the second gas-tpe fitting (23), two ends are fixed even with cylinder upper cover (22) and lower cover of air cylinder (24) respectively The cylinder block (25), reciprocating piston plate (26) inside cylinder block (25), top and the piston plate (26) that connect are solid The fixed piston rod (27) connecting, the lower end of described piston rod (27) is flexibly connected with valve element, and described piston rod (27) bottom is provided with Spring groove (271), spring (272) is placed in spring groove (271), the tip contact piston rod (27) of described spring (272), bottom Contact valve element (11), described piston rod (27) is hollow structure, and push rod (273) is located at the hollow space of piston rod, described push rod (273) top is fixed with pilot head (274), and bottom passes through spring (272) and touches valve element (11);Described pilot head is provided with Through hole to coordinate the hollow structure of push rod (273), described valve element (11) bottom also be provided with coordinate push rod (273) through hole so that Gas in cylinder block (25) can enter sealing plate a and sealing successively from pilot head (274), push rod (273), valve element (11) The space that plate b is formed in valve element (11), described sealing plate a is fixedly installed magnet steel c, and described sealing plate b is fixedly installed There is magnet steel d, and magnet steel c and magnet steel d is disposed adjacent.
2. Pneumatic vacuum push-pull valve according to claim 1 it is characterised in that: described valve body includes upper valve body and lower valve Body, and upper valve body is fixedly connected with lower valve body.
3. Pneumatic vacuum push-pull valve according to claim 1 it is characterised in that: described vacuum gate valve also includes valve bottom Plate.
4. Pneumatic vacuum push-pull valve according to claim 1 it is characterised in that: described vacuum gate valve also include seal Device.
CN201510110894.4A 2015-03-15 2015-03-15 Pneumatic vacuum gate valve Active CN104712781B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510110894.4A CN104712781B (en) 2015-03-15 2015-03-15 Pneumatic vacuum gate valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510110894.4A CN104712781B (en) 2015-03-15 2015-03-15 Pneumatic vacuum gate valve

Publications (2)

Publication Number Publication Date
CN104712781A CN104712781A (en) 2015-06-17
CN104712781B true CN104712781B (en) 2017-01-18

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Application Number Title Priority Date Filing Date
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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106321877A (en) * 2015-07-03 2017-01-11 东莞市中镓半导体科技有限公司 Large-channel-size vacuum gate valve

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19622474C2 (en) * 1996-06-05 1998-04-09 Deutsch Zentr Luft & Raumfahrt High speed actuator
CN201621310U (en) * 2010-03-11 2010-11-03 浙江固特气动机械有限公司 Double-flashboard sluice valve
CN203162195U (en) * 2013-04-09 2013-08-28 天津海天依电力工程有限公司 Carbon plating discharge valve
CN203585392U (en) * 2013-09-27 2014-05-07 浙江冠力阀门有限公司 Pneumatic deslagging valve
CN204512485U (en) * 2015-03-15 2015-07-29 上海磊航机械制造有限公司 Pneumatic vacuum push-pull valve

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