CN109357031A - The Novel gate valve of gear driving - Google Patents
The Novel gate valve of gear driving Download PDFInfo
- Publication number
- CN109357031A CN109357031A CN201811511477.0A CN201811511477A CN109357031A CN 109357031 A CN109357031 A CN 109357031A CN 201811511477 A CN201811511477 A CN 201811511477A CN 109357031 A CN109357031 A CN 109357031A
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- CN
- China
- Prior art keywords
- sealing
- fixed
- valve
- gear
- plate
- Prior art date
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- Granted
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Classifications
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- 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
- F16K3/0254—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 being operated by particular means
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- 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
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
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- 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
- F16K3/0281—Guillotine or blade-type valves, e.g. no passage through the valve member
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- 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
- F16K3/28—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 resilient valve members
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- 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
- 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
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- 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
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
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- 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
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- 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The present invention relates to a kind of gate valves, be especially applied to industrial gasses flowing, powder, granular object realm conveying in pipeline gate valve, the Novel gate valve of gear driving, including valve body, upper sealing ring, lower sealing ring, valve plate, fixed frame, sealing device A, sealing device B, sealing leak observation device, fixing seat, drive shaft, gear, rack gear, driving block assembly, fixed guide rail, housing seal part and stroke indicating device.Above-mentioned gate valve uses a variety of sealing means, is conducive to the sealing of valve.
Description
Technical field
The present invention relates to a kind of gate valve, be especially applied to industrial gasses flowing, powder, granular object realm it is defeated
Send the gate valve of middle pipeline.
Background technique
Gate valve is very widely used in industrial circle, is mainly used in power plant, smelting, cement, chemical industry, grain, mining industry
Etc. the unlatching of gas or material in pipe-line system in industries, shut off or turn to, but there is also following defects: present industrial application
Gate valve it is common be driven by electricity, the driving of manual actuation, hydraulic-driven, strength, the gentle power-driven system of hydraulic-driven compares
Complexity is of limited application；Electric power and the gate valve of manual actuation it is common be screw mechanism, screw mechanism is not suitable for gate valve
Frequently opening and closing and high-speed motion, screw mechanism screw drives under the big environment of dust are particularly easy to seal there are great drawback
Deal with the phenomenon that causing lead screw locking improperly, and opening and closing time is long, maintenance difficult；Wheel and rack drives advantage huge, but
It is that cannot achieve mechanical automatic spacing after gate valve reaches terminal, plate when leading to the electric control gear failure of power driven equipment
It is very more that valve reaches the phenomenon that can not carrying out mechanical automatic spacing and motor is caused to burn after terminal, causes very to factory's operation
Big loss, same manual equipment carry out linear reciprocation driving open or close there is also be difficult to conclude whether in place the problem of, to behaviour
Author brings many troubles and puzzlement, is not well positioned to meet production and operational requirements, and the sealing side of existing gate valve
There is also certain defects for formula.
For this purpose, some solutions are proposed, for example, utility model patent number in Chinese patent literature
" wheel and rack reciprocates to terminal tooth and is disengaged from device " disclosed in ZL201620587096.0 realizes gear and tooth
The problem of item is disengaged from and rack gear is engaged with gear rapidly automatically after gear stop motion, but the document [0005]
In " driving rack passes through 1 median slot slideway bolt of object connecting plate by rack gear top link block 5 and section of rack 8
Connection composition, rack slide and fixed plate 6 are by the way that connection is solid on dragging object connecting plate 1 in 8 lower part guide groove of section of rack
Fixed, dragging 1 liang of side slideway of object connecting plate is arranged on fixed frame in guide groove, the driving rack connection dragging object connection
Dragging object is driven to move back and forth along fixed frame guide groove after plate." setting in " driving rack is connected by rack gear top
Block 5 and section of rack 8 are connected with composition by 1 median slot slideway of object connecting plate, " there is " top link block 5 "
No substantial role is set, and the effect of setting can replace in setting in " section of rack 8 " completely, and cause tooth-strip part
Divide manufacture craft excessive, the toughness of rack gear weakens；" rack slide and fixed plate 6 pass through under section of rack 8 in the document simultaneously
Is connected and fixed on dragging object connecting plate 1 in portion's guide groove, " in " rack slide and fixed plate 6 " and " dragging object connecting plate
1 " is an integral structure, and setting is too simple, its technical characteristic cannot be effectively played during equipment making；Secondly described in
" dragging 1 median slot of object connecting plate, two side slideway is arranged in rack gear top link block 5 and section of rack 8 in document [0006]
In the guide groove of junction, " and " slideway of rack slide and fixed plate 6 is arranged in the guide groove of 8 liang of side lower parts of section of rack；
Drag 1 median slot front both ends of object connecting plate setting spring arrangement 7 and rack gear limit stop device 9, " in exist described in
" driving rack " is provided with two slideways, two slideways solve the problems, such as it is same belong to design defect, especially described " the dragging object
" the dragging object connecting plate 1 " of spring arrangement 7 and rack gear limit stop device 9 " is arranged in 1 median slot front both ends of body connecting plate
Synthesis be set to technology implement in main body fixed structure, be provided with the effect of " dragging object connecting plate 1 ", limit too much
The practical application of its technical principle has been made, and has been not easy to the sealing of main structure.
Summary of the invention
The present invention provides a kind of Novel gate valve of gear driving, changes current plate according to above-mentioned problem
The valve plate of valve reaches the phenomenon that cannot achieve mechanical automatic spacing after terminal, and realizes automatic compensation sealing material and valve
The gap of plate ensure that the safe operation of gate valve to greatest extent.
In order to solve the above technical problems, according to " wheel and rack disclosed in utility model patent ZL201620587096.0
Reciprocate to terminal tooth and be disengaged from device " Some principles, the technical solution adopted by the present invention are as follows: a kind of driving of gear
Novel gate valve, including valve body, upper sealing ring, lower sealing ring, valve plate, fixed frame, sealing device A, sealing device B, sealing
Leakage observation device, fixing seat, drive shaft, gear, rack gear, driving block assembly, fixed guide rail, housing seal part and stroke refer to
Showing device；
The structure setting of the valve body is circle, or the upper and lower ends of cube, valve body are respectively equipped with connecting flange, wherein
The internal preset position of valve body is equipped with upper sealing ring and lower sealing ring, and upper sealing ring and lower sealing ring are metal material, can also be with
For other hard materials；The middle position of the upper sealing ring and lower sealing ring is equipped with valve plate, the end of the valve plate and driving
Block assembly connection, and valve plate is by doing straight reciprocating motion between fixed frame；
The fixed frame is fixed on the both sides external predetermined position of valve body, and the fixed frame is two, and the fixed frame is channel steel,
It may be set to be other type structures, and the other end of fixed frame is equipped with two fixed plates, two fixed plates are fixed on two
The upper/lower terminal of fixed frame, and the proper motion space of valve plate is reserved in two fixed plates middle section；
The above and below of valve plate between the valve body and two fixed frames is successively arranged sealing device A and sealing device B respectively
, the sealing device A and sealing device B be respectively equipped with upper and lower two groups, and two groups of sealing device A are close to the outer of valve body
Side, device is observed in setting sealing leak on the sealing device B of middle and lower part；
Fixing seat is set on the outside of each fixed frame, and drive shaft is fixed in the fixing seat, wherein the both ends of drive shaft
It is respectively fixedly connected with by each fixing seat and corresponding fixed frame with two gears；The wheel and rack engagement, the tooth
Item is two, and the inside of corresponding driving block assembly is arranged in each rack gear, and the driving block assembly is two groups, is separately positioned on two
The inner space of a fixed frame is connected and fixed guide rail on the outside of each driving block assembly, and the fixed guide rail is set as two groups,
Every group has two, and each fixed guide rail is fixed on corresponding fixed frame；Shell is equipped on the outside of each fixed frame
Hermetic unit, and housing seal part is detachable part, wherein on the corresponding housing seal part of one group of fixed frame
Stroke indicating device is set.
Further, each sealing device A includes sealing plate, holddown spring and sealing cover, the sealing plate sealing valve
Plate, for holddown spring between sealing plate and sealing cover, holddown spring automatically adjusts the seal clearance of sealing plate and valve plate, sealing cover
A is fixed by screws on the shell of fixed frame, wherein the sealing plate is set as hard material, may be set to be other
Material.
Further, each sealing device B includes flexible sealing material, pressure plate, adjustment spring, sealing cover A, institute
Flexible sealing material sealing valve plate is stated, adjustment spring is between pressure plate and sealing cover A, and adjustment spring is by squeezing pressure plate
Automatically adjust the seal clearance of flexible sealing material and valve plate, and sealing cover A is fixed by screws on the shell of fixed frame.
Further, the sealing leak observation device includes flexible pipe and valve, and the upper end of flexible pipe is fixed on sealing
In device B on sealing cover A, the lower end connecting valve of flexible pipe；The flexible pipe is transparent material, facilitates observation, more into one
Step ground, the flexible pipe may be set to be transparent observation window structure.
Further, the two sides of each rack gear are symmetrically arranged with guide groove, and the both ends of each rack gear are equipped with spring positioning bar.
Further, each driving block assembly includes a fixed block, two springs, two limited blocks and one piece of dragging
Object connecting plate, described two limited blocks are separately fixed at the both ends of fixed block, and each limited block is equipped with spring fixed hole,
One end of connecting spring in spring fixed hole on limited block, the other end of spring and the spring positioning bar of rack gear are correspondingly connected with,
The fixed dragging object connecting plate of two of them limited block, while the dragging object connecting plate is bolted to connection valve plate
End.
Further, the fixed guide rail is arranged in the rack gear and limited block in the guide groove of two sides, and rack gear
Driving block assembly is driven to do straight reciprocating motion along fixed guide rail by guide groove.
Further, the rack gear and driving block assembly are sliding limit connection, the both ends of the rack gear and corresponding limit
Position block is equipped with certain distance, and the tooth of gear is crossed rack gear the last one tooth and still normally rotated under force；Due to described
The straight reciprocating motion of rack gear is not by the direct limitation of the reaction force of valve plate, and after gear rotation stops, rack gear is in spring
Rapid return is engaged with gear under reaction force.
Further, the two sides of the limited block be equipped with guide groove identical with rack gear, and and tooth in same horizontal line
It is upper identical.
Further, the stroke indicating device includes sealing cover B, stroke mark and stroke indicator, sealing cover B and
Stroke mark is separately fixed on the corresponding housing seal part of fixed frame, and stroke indicator passes through corresponding housing seal part
And it is fixedly connected with the limited block in corresponding driving block assembly.
The present invention can be set according to actual needs the quantity and identical configuration of gear.
The present invention compared with the existing technology, has the advantage that
1, above-mentioned gate valve uses a variety of sealing means, is conducive to the sealing of valve.
2, above-mentioned gate valve is adjusted the structure of the seal clearance of sealing material and valve plate using dual spring, realizes
The sealing of sealing material and valve plate in seal process compensates automatically.
3, drive terminal backgear and the rack gear of the gate valve movement of the constitution realization of block assembly automatic in above-mentioned gate valve
It is disengaged from, the valve plate for being completed at the same time gate valve moves to after terminal the purpose for realizing mechanical automatic spacing.
4, the simple structure, practical of block assembly is driven in above-mentioned gate valve, it is easy to repair.
5, driving method is suitble to gate valve frequently to open and close and high-speed motion in above-mentioned gate valve, overcomes screw mechanism and is driving
During dynamic there are the drawbacks of, ensure that the safe operation of gate valve to greatest extent.
6, it is provided with sealing leak in above-mentioned gate valve and observes device, replace sealing material in time after facilitating observation object leakage
Material.
7, it is provided with stroke indicating device in above-mentioned gate valve, operator is allowed to be clearly seen that the stroke shape of valve plate movement
State opens and closes degree convenient for adjusting valve plate.
8, housing seal has been partially completed the integral sealing of shell in above-mentioned gate valve, effective that dust is prevented to enter shell
It is internal.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the top view of Fig. 1 of the embodiment of the present invention；
Fig. 3 is the A-A cross-sectional view of Fig. 1 of the embodiment of the present invention；
Fig. 4 is the B-B cross-sectional view of Fig. 1 of the embodiment of the present invention；
Fig. 5 is the C-C cross-sectional view of Fig. 1 of the embodiment of the present invention；
Fig. 6 is D-D cross-sectional view in Fig. 1 of the embodiment of the present invention；
Fig. 7 is the E-E cross-sectional view of Fig. 1 of the embodiment of the present invention；
Fig. 8 is the F of Fig. 1 of the embodiment of the present invention to cross-sectional view；
Marked in the figure: 1, valve body, 2, upper sealing ring, 3, lower sealing ring, 4, valve plate, 5, fixed frame, 6, sealing device A, 7, sealing
Device B, 8, sealing leak observation device, 9, fixing seat, 10, drive shaft, 11, gear, 12, rack gear, 13, driving block assembly,
14, fixed guide rail, 15, housing seal part, 16, stroke indicating device, 17, sealing plate, 18, holddown spring, 19, sealing cover,
20, flexible sealing material, 21, pressure plate, 22, adjustment spring, 23, sealing cover A, 24, fixed plate, 25, flexible pipe, 26, valve
Door, 27, guide groove, 28, spring positioning bar, 29, fixed block, 30, spring, 31, limited block, 32, dragging object connecting plate, 33,
Sealing cover B, 34, stroke mark, 35, stroke indicator.
Specific embodiment
Illustrate a specific embodiment of the invention with reference to the accompanying drawing, as shown in Figure 1, Figure 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 and
Shown in Fig. 8: a kind of Novel gate valve of gear driving, including valve body 1, upper sealing ring 2, lower sealing ring 3, valve plate 4, fixed frame 5,
Sealing device A 6, sealing device B 7, sealing leak observation device 8, fixing seat 9, drive shaft 10, gear 11, rack gear 12, driving
Block assembly 13, fixed guide rail 14, housing seal part 15 and stroke indicating device 16；
The structure of the valve body 1 is circle, or cube, the upper and lower ends of valve body 1 are respectively equipped with connecting flange, wherein valve
The internal preset position of body 1 is equipped with upper sealing ring 2 and lower sealing ring 3, and the upper sealing ring 2 and lower sealing ring 3 are separately fixed at
On 1 shell of valve body, the upper sealing ring 2 and lower sealing ring 3 are set as metal material, may be set to be other rigid materials
Material；The middle position of the upper sealing ring 2 and lower sealing ring 3 is provided with valve plate 4, the end of the valve plate 4 and driving block assembly
13 connections, and valve plate 4 carries out cutting for valve body 1 by moving back and forth by doing straight reciprocating motion, valve plate 4 between fixed frame 5
Stream and unlatching；
The fixed frame 5 is fixed on the both sides external predetermined position of valve body 1, and the fixed frame 5 is channel steel, may be set to be it
Its type structure, the fixed frame 5 are two, are symmetrical arranged in the left and right sides of valve body 1, and the other end of fixed frame 5 is equipped with
Two fixed plates 24, two fixed plates 24 are fixed on the upper/lower terminal of two fixed frames 5, and 24 middle part of two fixed plates
Divide the proper motion space of default valve plate 4.
The above and below of valve plate 4 between the valve body 1 and two fixed frames 5 is successively arranged sealing device A 6 and close respectively
Close to the outside of valve body 1, the sealing device A 6 is upper and lower two groups by seal apparatus B 7, the sealing device A 6, respectively includes close
Sealing plate 17, holddown spring 18 and sealing cover 19, the sealing plate 17 contact valve plate 4, and holddown spring 18 is in sealing plate 17 and sealing
Between lid 19, holddown spring 17 automatically adjusts the seal clearance of sealing plate 19 and valve plate 4；Wherein the sealing plate 17 is set as hard
Property material, may be set to be other materials, the sealing cover A 19 is fixed by screws on the shell of fixed frame 5.
The sealing device B 7 be upper and lower two groups, respectively include flexible sealing material 20, pressure plate 21, adjustment spring 22,
Sealing cover A 23,20 sealing valve plate 4 of flexible sealing material, adjustment spring 22 between pressure plate 21 and sealing cover A 23,
Adjustment spring 22 is automatically adjusted the seal clearance of flexible sealing material 20 and valve plate 4 by squeezing pressure plate 21, sealing cover A
23 are fixed by screws on the shell of fixed frame 5.
Sealing leak is set on the sealing device B 7 positioned at lower part and observes device 8, device is observed in the sealing leak
8 include flexible pipe 25 and valve 26, and the upper end of flexible pipe 25 is fixed in sealing device B 7 on sealing cover A 23, flexible pipe 25
Lower end connecting valve 26；The flexible pipe 25 is transparent material, facilitates observation, the object of the excretion leakage of valve 26；Further
Ground, the flexible pipe may be set to be transparent observation window structure.
Fixing seat 9 is set on the outside of each fixed frame 5, and drive shaft 10 is fixed in the fixing seat 9, wherein driving
The both ends of axis 10 are respectively fixedly connected with by each fixing seat 9 and corresponding fixed frame 5 with two gears 11, and drive shaft 10 connects
Electronic (manual) equipment provides power；The gear 11 is engaged with rack gear 12, and the rack gear 12 is two, each rack gear 12
Two sides are symmetrically arranged with guide groove 27, and the both ends of each rack gear 12 are equipped with spring positioning bar 28, and each rack gear 12 is arranged in corresponding driving
The inside of block assembly 13, the driving block assembly 13 are two groups, are separately positioned on the inner space of two fixed frames 5, described each
Driving block assembly 13 includes 30, two, a spring limited block 31 of fixed block 29, two and one piece of dragging object connecting plate 32, institute
The both ends that two limited blocks 31 are separately fixed at fixed block 29 are stated, and each limited block 31 is equipped with spring fixed hole, limited block
One end of connecting spring 30 in spring fixed hole on 31, the other end of spring 30 and the spring positioning bar 28 of rack gear 12 it is corresponding connect
It connects, two of them limited block 31 is fixedly connected with dragging object connecting plate 32, and the dragging object connecting plate 32 is bolted
Connect the end of valve plate 4；And the two sides of the limited block 31 be equipped with guide groove 27 identical with rack gear 12, and with rack gear 12
In the same horizontal line.
The outside of each driving block assembly 13 is connected and fixed guide rail 14, and the fixed guide rail 14 is two groups, and every group has two
Item fixes guide rail 14, and the fixed guide rail 14 of each group is fixed on corresponding fixed frame 5, and described every group fixed guide rail 14 is arranged right
In the rack gear 12 and limited block 31 answered in the guide groove 27 of two sides, and rack gear 12 drives driving block assembly 13 by guide groove 27
Straight reciprocating motion is done along corresponding ground way 14 with valve plate 4.
The both ends of the rack gear 12 are equipped with certain distance with corresponding limited block 31, and rack gear 12 and driving block assembly 13 are to slide
Dynamic limit connection, rack gear 12 are fixedly connected with object connecting plate 32 is dragged for separate type, the straight reciprocating motion of rack gear 12 not by
The direct limitation of the reaction force of valve plate 4, so the terminal backgear 11 that valve plate 4 moves is automatically disengaged with rack gear 12 and is engaged, and
And after the rotation of gear 11 stops, the rapid return under the reaction force of spring 30 of rack gear 12 is engaged with gear 11, is guaranteed
The normal straight of valve plate 4 moves back and forth, while not injuring power-equipment.
The outside of each fixed frame 5 is equipped with housing seal part 15, effective that dust is prevented to enter enclosure interior, and
And housing seal part is detachable part, facilitates maintenance and component to detect, wherein the corresponding shell of one group of fixed frame 5 is close
It seals and stroke indicating device 16 is set on part 15, the stroke indicating device 17 includes sealing cover B 33, stroke mark 34 and row
Journey indicator 35, sealing cover B 33 and stroke mark 34 are separately fixed on the corresponding housing seal part 15 of fixed frame 5, stroke
Indicator 35 passes through corresponding housing seal part 15 and is fixedly connected with corresponding limited block 31, the stroke indicator 35
The space that the shell middle position preset strokes indicator 35 of corresponding housing seal part 15 moves back and forth；The stroke instruction
The stroke state that device 16 allows operator to be clearly seen that valve plate 4 moves opens and closes degree convenient for adjusting valve plate 4.
The specific work process of the embodiment of the present invention: it is that gear 11 mentions that the drive shaft 10 of the gate valve, which connects power-equipment,
For power, gear 11 push under force the rack gear 12 engaged drive driving block assembly 13 in spring 30 along fixation
Guide rail 14 moves linearly, while driving block assembly 13 that valve plate 4 is driven to move in a straight line in fixed guide rail 14, when active force is big
When the reaction force of spring 30, spring 30 is expressed to corresponding limited block 31 and is equipped in spring fixed hole, this hour rack 13
It contacts and continues to move to limited block 31, when the tooth that gear 12 reaches end and gear 12 with 13 engaging portion of rack gear is crossed
When the last one tooth of rack gear 13, valve plate 4 is also reached home；Since the both ends of the rack gear 12 are equipped with corresponding limited block 31
Certain distance, so gear 11, which crosses the completion of the last one tooth of rack gear 12 in the tooth of active force lower gear 11, is disengaged from still tooth
The still normal rotation under force of wheel 11.
When the active force of gear 11 stops, since rack gear 12 and driving block assembly 13 are sliding limit connections, in spring
The tooth of end is quickly returned to fill with 11 meshing state of gear, completion in no Electronic control in rack gear 12 under 30 reaction force
The valve plate 4 for setting underthrust plate valve does purpose after straight reciprocating motion to terminal without injuring electrical equipment.
Finally, it is stated that: the foregoing is merely a kind of specific embodiment of the invention, the present embodiment is merely to illustrate this
The technical solution of invention, rather than the limitation to other forms, protection scope of the present invention are not so limited；Although referring to above-mentioned
Invention is explained in detail for embodiment, those skilled in the art should understand that, it still can be to above-mentioned
Technical solution documented by embodiment is modified, and either part of or even all technical features are modified or replaced
It changes；And these are modified or replaceed, technical solution of the present invention range that it does not separate the essence of the corresponding technical solution；Any base
The protection scope of technical solution of the present invention is belonged in the equivalent transformation of technical solution of the present invention and modification.
Claims (10)
1. gear driving Novel gate valve, including valve body, upper sealing ring, lower sealing ring, valve plate, fixed frame, sealing device A,
Sealing device B, sealing leak observation device, fixing seat, drive shaft, gear, rack gear, driving block assembly, fixed guide rail, shell
Hermetic unit and stroke indicating device；
The upper and lower ends of the valve body are respectively equipped with connecting flange, and wherein the inside of valve body is equipped with upper sealing ring and lower sealing ring；
Valve plate is equipped between the upper sealing ring and lower sealing ring, the end of the valve plate is connect with driving block assembly, and valve plate is logical
It crosses and does straight reciprocating motion between fixed frame；
The fixed frame is fixed on the both sides external of valve body, and the fixed frame is two, and the other end of fixed frame is equipped with two
Block fixed plate, two fixed plates are fixed on the upper/lower terminal of two fixed frames, and valve plate is reserved in two fixed plates middle section
Space；
The above and below of valve plate between the valve body and two fixed frames is successively arranged sealing device A and sealing device B respectively
, the sealing device A and sealing device B be respectively equipped with upper and lower two groups, and two groups of sealing device A are close to the outer of valve body
Side, device is observed in setting sealing leak on the sealing device B of middle and lower part；
Fixing seat is arranged in the external of each fixed frame, and drive shaft is fixed in the fixing seat, wherein the both ends of drive shaft
It is respectively fixedly connected with by each fixing seat and corresponding fixed frame with two gears；The wheel and rack engagement, the tooth
Item is two, and the inside of corresponding driving block assembly is arranged in each rack gear, and the driving block assembly is two groups, is separately positioned on two
The inner space of a fixed frame is connected and fixed guide rail on the outside of each driving block assembly, and the fixed guide rail is set as two groups,
Every group has two, and each fixed guide rail is fixed on corresponding fixed frame；Shell is equipped on the outside of each fixed frame
Hermetic unit, and housing seal part is detachably connected with fixed frame, wherein the corresponding housing seal part of one group of fixed frame
Upper setting stroke indicating device.
2. the Novel gate valve of gear according to claim 1 driving, it is characterised in that: each sealing device A includes
Sealing plate, holddown spring and sealing cover, the sealing plate sealing valve plate, holddown spring compress between sealing plate and sealing cover
Spring automatically adjusts the seal clearance of sealing plate and valve plate, and sealing cover A is fixed by screws on the shell of fixed frame.
3. the Novel gate valve of gear according to claim 1 driving, it is characterised in that: each sealing device B includes
Flexible sealing material, pressure plate, adjustment spring and sealing cover A, the flexible sealing material sealing valve plate, adjustment spring are being pressed
Between tight plate and sealing cover A, adjustment spring is automatically adjusted the sealing of flexible sealing material and valve plate by extruding pressure plate
Gap, sealing cover A are fixed by screws on the shell of fixed frame.
4. the Novel gate valve of gear driving according to claim 1 or 3, it is characterised in that: the sealing leak observation
Device includes flexible pipe and valve, and the upper end of flexible pipe is fixed in sealing device B on sealing cover A, and the lower end of flexible pipe connects
Connect valve；The flexible pipe is transparent material.
5. the Novel gate valve of gear driving according to claim 1, it is characterised in that: the two sides of each rack gear are symmetrical
Equipped with guide groove, the both ends of each rack gear are equipped with spring positioning bar.
6. the Novel gate valve of gear according to claim 1 driving, it is characterised in that: each driving block assembly includes
One fixed block, two springs, two limited blocks and one piece of dragging object connecting plate, described two limited blocks are separately fixed at solid
Determine the both ends of block, and each limited block is equipped with spring fixed hole, one end of connecting spring in the spring fixed hole on limited block,
The other end of spring and the spring positioning bar of rack gear are correspondingly connected with, the fixed dragging object connecting plate of two of them limited block, described
Dragging object connecting plate is bolted to connection the end of valve plate.
7. the Novel gate valve that gear according to claim 1 or 6 drives, it is characterised in that: the fixed guide rail setting
In the rack gear and limited block in the guide groove of two sides, and rack gear drives driving block assembly to lead along fixation by guide groove
Rail does straight reciprocating motion.
8. the Novel gate valve that gear according to claim 1 or 6 drives, it is characterised in that: the rack gear and drive block
Device is sliding limit connection, and the both ends of the rack gear are equipped with certain distance with corresponding limited block, under force gear
Tooth cross rack gear the last one tooth and still normally rotate；Since the straight reciprocating motion of rack gear is not by the reaction force of valve plate
It directly limits, after gear rotation stops, rack gear rapid return under the reaction force of spring is engaged with gear.
9. the Novel gate valve that gear according to claim 1 or 6 drives, it is characterised in that: the two sides of the limited block
Equipped with guide groove identical with rack gear, and it is identical in the same horizontal line as rack gear.
10. the Novel gate valve that gear according to claim 1 or 6 drives, it is characterised in that: the stroke indicating device
Including sealing cover B, stroke mark and stroke indicator, sealing cover B and stroke mark are separately fixed at the corresponding shell of fixed frame
On hermetic unit, stroke indicator passes through corresponding housing seal part and consolidates with the limited block in corresponding driving block assembly
Fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811511477.0A CN109357031B (en) | 2018-12-11 | 2018-12-11 | Gear-driven novel gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811511477.0A CN109357031B (en) | 2018-12-11 | 2018-12-11 | Gear-driven novel gate valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109357031A true CN109357031A (en) | 2019-02-19 |
| CN109357031B CN109357031B (en) | 2023-08-29 |
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ID=65332107
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811511477.0A Active CN109357031B (en) | 2018-12-11 | 2018-12-11 | Gear-driven novel gate valve |
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| CN (1) | CN109357031B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111252397A (en) * | 2020-03-23 | 2020-06-09 | 大连碧海环保设备有限公司 | Powder strong shut-off valve and stock bin |
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| Publication number | Publication date |
|---|---|
| CN109357031B (en) | 2023-08-29 |
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