CN109798376A - Schmidt's vacuum air valve - Google Patents
Schmidt's vacuum air valve Download PDFInfo
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- CN109798376A CN109798376A CN201910201909.6A CN201910201909A CN109798376A CN 109798376 A CN109798376 A CN 109798376A CN 201910201909 A CN201910201909 A CN 201910201909A CN 109798376 A CN109798376 A CN 109798376A
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Abstract
The present invention provides a kind of Schmidt's vacuum air valves, it include: two-position three way vacuum air valve, first end is provided with an air inlet, second end is provided with a gas outlet, third end is provided with a gas returning port, the second connected state that the two-position three way vacuum air valve is used to form the first connected state that the only described air inlet is connected to the gas outlet and the only described gas outlet is connected to the gas returning port；Schmidt's pilot-controlled switch, including a lever and cam switching device, the two-position three way vacuum air valve is connect with the lever and cam switching device, and Schmidt's pilot-controlled switch switches the first connected state and the second connected state of the two-position three way vacuum air valve by the lever and cam switching device.The present invention does not need the energy such as additional input chemical energy as drive energy, can switch the connected state of two-position three way vacuum air valve, and whole device is reasonable in design, high reliablity, the gas suitable for various performances.
Description
Technical field
The present invention relates to vacuum exhaust system technical field, in particular to a kind of Schmidt's vacuum air valve.
Background technique
Vacuum air valve is, for changing airflow direction, to adjust throughput size in vacuum exhaust system, be switched off or on
The vacuum system element of pipeline.Existing vacuum air valve, mostly uses greatly automatically controlled mode to be adjusted, and structure is more complex, system
It makes and safeguards and is more difficult.And the reliability of operation is difficult to ensure in complex environment.At industrial production and sewage collecting
Higher and higher to the requirement of energy-saving and emission-reduction during reason, traditional vacuum air valve has been difficult to meet the requirements, and needs to design new
Vacuum air valve, can be used in complex environment, and reliability with higher.Especially in moist working environment, very
If air valve is adjusted by automatically controlled mode of operation, it can usually make its electric-controlled switch dampness, leak electricity and cause to fail.Therefore, originally
Invention be intended to design it is a kind of can used in the complex environment, do not need the energy and can recycle the vacuum air valve of adjusting, it is main
Be used for municipal engineering water drainage, sanitary sewage, hypogee percolating water vacuum collecting row such as lead at the projects, there is energy conservation and reduction to apply
The advantages such as expenses of labour.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of structure is simple, low cost crosses impurity ability
By force, suitable for various weak acid and weak base performance gases, the vacuum air valve used in the complex environments such as humidity.
In order to achieve the above object, the present invention provides a kind of Schmidt's vacuum air valves, comprising:
The first end of two-position three way vacuum air valve, the two-position three way vacuum air valve is provided with an air inlet, and second end is set
It is equipped with a gas outlet, third end is provided with a gas returning port, and the two-position three way vacuum air valve is used to form the only described air inlet
The second connected state that the first connected state and the only described gas outlet being connected to the gas outlet are connected to the gas returning port；
Schmidt's pilot-controlled switch, Schmidt's pilot-controlled switch include a lever and cam switching device, the two-position three way
Vacuum air valve is connect with the lever and cam switching device, and Schmidt's pilot-controlled switch passes through the lever and cam switching device
To switch the first connected state and the second connected state of the two-position three way vacuum air valve.
Wherein, the two-position three way vacuum air valve includes a valve body, is provided with a venting cavity, the ventilation in the valve body
An intake valve port, an outlet valve port and a return-air valve port are provided on chamber, the intake valve port is connected to the air inlet, described
Outlet valve port is connected to the gas outlet, and the return-air valve port is connected to the gas returning port；A valve is provided in the venting cavity
Core, the spool are used to blocking and forming the first company for only having the air inlet and being connected to the gas outlet return-air valve port
Logical state, and the intake valve port is blocked and forms the second connected state that the only described gas outlet is connected to the gas returning port
State.
Wherein, the bottom end of the spool is fixedly installed one first guide rod, and the bottom end of first guide rod passes through institute
It states return-air valve port and extends outside the gas returning port.
Wherein, the lever and cam switching device includes cam fixing body, is provided with a rotation on the cam fixing body
Axis is rotatably provided with a lever and cam in the rotary shaft, and the first end of the lever and cam is fixedly installed a counterweight
Body is additionally provided with a cam ring on the lever and cam；Clamping body is switched, it is logical that the bottom end of the switch clamping body is provided with one
Hole is fixedly installed a rolling element axis of rolling in the through-hole, a rolling element, the rolling is provided on the rolling element axis of rolling
Kinetoplast is slidably arranged in the cam ring, and the lever and cam is able to drive the switch clamping body and installs in the cam
It is slided up and down in the sliding slot of body top setting；The top of the switch clamping body is fixedly installed a clamping device, and described first
Guide rod is plugged on the clamping device and is fixed by the gripping apparatus grips.
Wherein, Schmidt's pilot-controlled switch further include:
Weight release device, the weight release device include a mobile cavity, and the first side of the mobile cavity is provided with
One opening port, the bottom of the mobile cavity are provided with a mounting base；
Weight falls chamber, is arranged in the mounting base, and fall the first side of chamber of the weight is connected with the opening port
Logical, the fall first side of chamber of the weight is provided with a sliding rail, the first side of the mounting base by the sliding rail slidably
Be arranged in the weight fall chamber first side on；
Buoyancy transfer device, is arranged in the bottom of the mounting base, and the buoyancy transfer device is used for the mounting base
Buoyancy is transmitted, the motion state of the mounting base is controlled.
Wherein, the lever and cam switching device and the weight chamber that falls are connect, and the second end of the lever and cam
Be extended on the weight fall it is intracavitary.
Wherein, the weight release device includes a rotating plate shaft, and the first side of the mobile cavity is arranged in the rotating plate shaft
Inner wall on, a turnover panel is rotatably provided on the rotating plate shaft, a weight body, the weight body are placed on the turnover panel
It can fall in the mobile cavity, the weight and move in chamber and the lever and cam switching device, the weight falls chamber
The inner wall of side is provided with an overturning and stirs body, and the overturning stirs body for changing the turnover panel motion state.
Wherein, the weight release device further includes suspension release structure, and the suspension release structure includes that setting exists
The weight fall chamber top first part and the second part on the mobile cavity top is set, the suspension release structure
For limiting and adjusting moving up and down for the mobile cavity.
Wherein, the buoyancy transfer device includes one second guide rod, and the top of second guide rod passes through the peace
The helicitic texture of dress seat bottom setting is threadedly coupled with the mounting base, and one the is fixedly installed in the middle part of second guide rod
A positioning block, bottom end are fixedly installed one second locating piece, are provided with one between first locating piece and the second locating piece and match
Pouring weight and a floating body, the clump weight and the floating body are set on second guide rod, and the floating body is set to institute
State the lower section of clump weight.
Above scheme of the invention have it is following the utility model has the advantages that
The two-position three way that Schmidt's vacuum air valve that the present invention designs includes comes true air valve, and there are three the logical of air-flow for setting
Mouthful, it is moved up and down by spool valve is intracorporal, forms the first connected state and the second connected state, the switching of state pass through
Schmidt's pilot-controlled switch is completed, and Schmidt's pilot-controlled switch falls weight release device, weight chamber, buoyancy transfer device and lever
Cam switch clamping device links together, and is combined into the switch that can be used safely in wet condition, utilizes liquid
Lifting, the position of weight is improved by buoyancy, weight is then discharged as driving potential energy, does not need the input energy such as chemical energy
As drive energy.Whole device is reasonable in design, is connected compact, cheap, high reliablity, suitable for various performances
Gas.
Detailed description of the invention
Fig. 1 is the 5th status architecture schematic diagram of Schmidt's vacuum air valve of the invention；
Fig. 2 is two-position three way vacuum air valve structure schematic diagram of the invention；
Fig. 3 is Schmidt's pilot-controlled switch structural schematic diagram of the invention；
Fig. 4 is lever and cam switching device structure detail view of the invention；
Fig. 5 is the first state structural schematic diagram of Schmidt's vacuum air valve of the invention；
Fig. 6 is the second status architecture schematic diagram of Schmidt's vacuum air valve of the invention；
Fig. 7 is the third state structural schematic diagram of Schmidt's vacuum air valve of the invention；
Fig. 8 is the 4th status architecture schematic diagram of Schmidt's vacuum air valve of the invention.
[description of symbols]
1- two-position three way vacuum air valve；101- air inlet；The gas outlet 102-；103- gas returning port；104- valve body；105- ventilation
Chamber；106- intake valve port；107- outlet valve port；108- return-air valve port；109- spool；The first guide rod of 110-；2- Schmidt's liquid
Control switch；21- lever and cam switching device；211- cam fixing body；212- rotary shaft；213- lever and cam；214- weight body；
215 cam rings；216- switchs clamping body；217- rolling element；218- clamping device；22- weight release device；221- mobile cavity；
222- opening port；223- mounting base；224- rotating plate shaft；225- turnover panel；226- weight body；227- suspension release structure；23- weight
Fall chamber；231- sliding rail；Body is stirred in 232- overturning；24- buoyancy transfer device；The second guide rod of 241-；The first locating piece of 242-；
The second locating piece of 243-；244- clump weight；245- floating body.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
As shown in Figure 1 and Figure 2, the embodiment provides a kind of Schmidt's vacuum air valves, comprising: two-position three way is true
The first end of air valve 1, the two-position three way vacuum air valve 1 is provided with an air inlet 101, and second end is provided with a gas outlet
102, third end is provided with a gas returning port 103, the two-position three way vacuum air valve 1 be used to form the only described air inlet 101 with
The second company that the first connected state and the only described gas outlet 102 that the gas outlet 102 is connected to are connected to the gas returning port 103
Logical state；Schmidt's pilot-controlled switch 2, Schmidt's pilot-controlled switch 2 include a lever and cam switching device 21, described two three
Logical vacuum air valve 1 is connect with the lever and cam switching device 21, and Schmidt's pilot-controlled switch 2 is opened by the lever and cam
Device 21 is closed to switch the first connected state and the second connected state of the two-position three way vacuum air valve 1.
Schmidt's vacuum air valve described in the above embodiment of the present invention, two kinds of connected states of two-position three way vacuum air valve 1
State respectively only has the first connected state that air inlet 101 is connected to gas outlet 102 and only gas outlet 102 and exhaust outlet 103
Second connected state of connection, and regulated and controled by Schmidt's pilot-controlled switch 2, so that two-position three way vacuum air valve 1 is first
Switch between connected state and the second connected state.Wherein Schmidt's pilot-controlled switch 1 only provides buoyancy by liquid, with gravitational potential
The mode that can be converted between kinetic energy, by lever and cam switching device 21 to two kinds of connected states of two-position three way vacuum air valve 1
It switches over, does not need to input other energy, such as electric energy, chemical energy, improve Schmidt's vacuum air valve in complex environment
The reliability used.
As shown in Fig. 2, the two-position three way vacuum air valve 1 includes a valve body 104, it is logical that one is provided in the valve body 104
Air cavity 105 is provided with an intake valve port 106, an outlet valve port 107 and a return-air valve port 108 on the venting cavity 105, described
Intake valve port 106 is connected to the air inlet 101, and the outlet valve port 107 is connected to the gas outlet 102, the return-air valve
Mouth 108 is connected to the gas returning port 103；A spool 109 is provided in the venting cavity 105, the spool 109 is used for will be described
Return-air valve port 108 blocks and is formed and only have the first connected state that the air inlet 101 is connected to the gas outlet 102, and
The intake valve port 106 is blocked and forms the second connected state for only having the gas outlet 102 and being connected to the gas returning port 103
State.The bottom end of the spool 109 is fixedly installed one first guide rod 110, and the bottom end of first guide rod 110 passes through described
Return-air valve port 108 simultaneously extends outside the gas returning port 103.
Two-position three way vacuum air valve 1 described in the above embodiment of the present invention, opens up a venting cavity 105 in valve body 104,
Form the space of gas flowing and the movement of spool 109.The first end of valve body 104 is set as air inlet 101, in venting cavity 105
Intake valve port 106 be connected to, the second end of valve body 104 is set as gas outlet 102, connects with the outlet valve port 107 in venting cavity 105
Logical, the third end of valve body 104 is set as gas returning port 103, is connected with the return-air valve port 108 in venting cavity 105 by a guide channel
It is logical, therefore the form of entire venting cavity 105 and formation threeway outside valve body 104.Spool 109 is arranged in venting cavity 105, and
Its bottom end is fixedly connected with the first guide rod 110, and the first guide rod 110 passes through guide channel and extends outside gas returning port 103
Part connection lever and cam switching device 21, can control the first guide rod 110 and spool by lever and cam switching device 21
109 move up and down.When spool 109 is moved to highest point, intake valve port 106 is closed, at this time gas outlet 102 and gas returning port
103 connections, form the second connected state of two-position three way vacuum air valve 1, and when spool 109 is moved to lowest part, by return-air
Valve port 108 is closed, and air inlet 101 is connected to gas outlet 102 at this time, forms the first connected state of two-position three way vacuum air valve 1.
As shown in Figure 3, Figure 4, the lever and cam switching device 21 includes cam fixing body 211, the cam fixing body
It is provided with a rotary shaft 212 on 211, a lever and cam 213 is rotatably provided in the rotary shaft 212, the lever is convex
The first end of wheel 213 is fixedly installed a weight body 214, and a cam ring 215 is additionally provided on the lever and cam 213；Switch
The bottom end of clamping body 216, the switch clamping body 216 is provided with a through-hole, and rolling element rolling is fixedly installed in the through-hole
Moving axis is provided with a rolling element 217 on the rolling element axis of rolling, and the rolling element 217 is slidably arranged in the cam ring 215
It is interior, and the lever and cam 213 is able to drive the cunning that the switch clamping body 216 is arranged on 211 top of cam fixing body
It is slided up and down in slot；The top of the switch clamping body 216 is fixedly installed a clamping device 218, first guide rod 110
It is plugged on the clamping device 218 and is gripped by the clamping device 218.
Lever and cam switching device 21 described in the above embodiment of the present invention, one is provided on cam fixing body 211 can
The lever and cam 213 rotated around rotary shaft 212, is provided with a cam ring 215, and sliding is provided with one on cam ring 215
Switch clamping body 216.When the second end stress of lever and cam 213 and the size of power makes lever and cam 213 around rotary shaft enough
212 when rotating clockwise, and the cam ring 215 on lever and cam 213 can drive switch clamping body 216 along cam fixing body 211
On sliding slot slide downward.When lever and cam 213 does not stress, lever and cam 213 can be under the action of weight body 214, around rotation
Shaft 212 rotates counterclockwise, and switchs clamping body 216 along the sliding slot upward sliding on cam fixing body 211.Since switch clamps
Clamping device 218 has been fixedly installed in the top of body 216, and the bottom end of the first guide rod 110 plugs and is clamped at clamping device
On 218, therefore when lever and cam 213 is rotated clockwise around rotary shaft 212, clamping body 216 is switched along cam fixing body 211
On sliding slot slide downward so that the first guide rod 110 and spool 109 move down, by return-air valve when spool 109 to lowest part
Mouth 108 is closed, and the first connected state is formed；And when lever and cam 213 is rotated clockwise around rotary shaft 212, switch clamping body
216 upward slidings, so that the first guide rod 110 and spool 109 move up, by intake valve port 106 when spool 109 to highest point
Closing forms the second connected state.It is true that lever and cam switching device 21 of the invention switches two-position three way through the above way
Two connected states of air valve 1.
As shown in figure 4, Schmidt's pilot-controlled switch 1 further include: weight release device 22, the weight release device 22
It include a mobile cavity 221, the first side of the mobile cavity 221 is provided with an opening port 222, the bottom of the mobile cavity 221
It is provided with a mounting base 223；Weight falls chamber 23, is arranged in the mounting base 223, and the weight falls the first side of chamber 23
It is connected with the opening port 222, the fall first side of chamber 23 of the weight is provided with a sliding rail 231, the mounting base 223
The first side by the sliding rail 231 be slidably arranged in the weight fall chamber 23 first side on；Buoyancy transfer device
24, the bottom of the mounting base 223 is set, and the buoyancy transfer device 24 is used to transmit buoyancy, control to the mounting base 223
Make the motion state of the mounting base 223.Meanwhile the lever and cam switching device 21 and the weight chamber 23 that falls are connect,
And the second end of the lever and cam 213 is extended on the weight and falls in chamber 23.
Schmidt's pilot-controlled switch 2 described in the above embodiment of the present invention, by the way that weight release device 22, weight fall
Chamber 23, buoyancy transfer device 24 and lever and cam switching device 21 link together, and being combined into one can be under complex environment
The switch of safe handling.Wherein weight release device 22 converts kinetic energy for the gravitional force of weight, to drive for discharging weight
Subsequent structure is moved, realizes other functions；The bottom of weight release device 22 is arranged in buoyancy transfer device 24, is used for weight
Object release device 22 transmits buoyancy, controls the motion state of weight release device 22；Weight fall chamber 23 be used as an adapter cavity,
Play a part of to connect weight release device 22 and lever and cam switching device 21.It falls in weight and is provided with sliding rail 231 on chamber 23,
It is slidably connected with weight release device 22, the weight chamber 23 that falls is fixedly connected and is connected to lever and cam switching device 21, lever
The second end of cam 213 can be extended on weight and fall in chamber 23.Lever and cam switching device 21 is Schmidt's pilot-controlled switch 2
Last executive device executes switch operation for the structure for the front that links up to switch two companies of two-position three way vacuum air valve 1
Logical state.
Wherein, the weight release device 22 includes a rotating plate shaft 224, and the rotating plate shaft 224 is arranged in the mobile cavity
On the inner wall of 221 the first side, it is rotatably provided with a turnover panel 225 on the rotating plate shaft 224, is placed on the turnover panel 225
There is a weight body 226, the weight body 226 can fall chamber 23 and the lever and cam in the mobile cavity 221, the weight
Movement in switching device 21, the fall inner wall of 23 first side of chamber of the weight are provided with an overturning and stir body 232, and the overturning is dialled
Kinetoplast 232 for changing the turnover panel 225 motion state.Wherein, the weight release device 22 further includes suspension release
Structure 226, it is described suspension release structure 227 include be arranged in the weight fall 23 top of chamber first part and be arranged in institute
State the second part on mobile cavity top, the suspension release structure 227 be used to limit and adjust the mobile cavity 221 on move down
It is dynamic.
The first of mobile cavity 221 is arranged in weight release device 22 described in the above embodiment of the present invention, rotating plate shaft 224
On the inner wall of side, a turnover panel 225, in its natural state, turnover panel 225 and horizontal plane are rotatably provided on rotating plate shaft 224
Weight body 226 at an angle, being placed on turnover panel 225, since the presence of turnover panel 225 and horizontal plane angle makes in no external force
In the state of, weight body 226 can rest on turnover panel 225, will not roll.Meanwhile it falling the inner wall of 23 first side of chamber in weight
Body 232 is stirred in the overturning of upper setting, and the motion state of turnover panel 225 can be changed.When buoyancy transfer device 24 is transmitted to mounting base 223
When buoyancy, mobile cavity 221 can along 231 upward sliding of sliding rail, during 221 upward sliding of mobile cavity, turnover panel 225 its
Middle one end can touch overturning and stir body 232, and turnover panel 225 is caused to rotate counterclockwise around rotating plate shaft 224.When the inclination of turnover panel 225
When direction changes, weight body 226 can be scrolled down through along turnover panel 225, fall to weight fall it is in chamber 23 and lever is convex
The second end of wheel 213 pushes, and when so that lever and cam 213 being rotated clockwise around rotary shaft 212, switchs clamping body 216 to downslide
It is dynamic, it drives the first guide rod 210 and spool 209 to move down, ultimately forms the first connected state of two-position three way vacuum air valve 1
State.At this point, setting is fallen in mobile cavity 221 and weight if buoyancy transfer device 24, which is gradually decreased to mounting base 223, transmits buoyancy
The suspension release structure 227 on 23 top of chamber will be remained stationary temporarily, limit the movement of mobile cavity 221 and mounting base 223.When
When buoyancy is reduced to a certain extent, the suspension release stopping of structure 227 limits mobile cavity 221 and mounting base 223, mobile cavity
221 and mounting base 223 will be along 231 slide downward of sliding rail, and meeting during 221 slide downward of mobile cavity of turnover panel 225
Body 232 is slowly stirred with overturning lose and contact, restore to reset condition.When mounting base 223 slips down to certain position, weight pendant
It can be limited by falling chamber 23, limit mounting base 223 and mobile cavity 221 continues to glide, and in this position, turnover panel 225 is just
It is touched with the fall bottom connection of chamber 23 of weight, weight body 226 will fall from weight under the effect of gravity to be tumbled to movement in chamber 23
On turnover panel 225 in chamber 221.At this point, lever and cam 213 revolves under the gravity of weight body 214 around rotary shaft 212 counterclockwise
Turn, switch 216 upward sliding of clamping body, the first guide rod 210 and spool 209 is driven to move up, when spool 209 to highest point
Intake valve port 106 is closed, the second connected state of two-position three way vacuum air valve 1 is ultimately formed, completes a wheel connected state
Switching.If buoyancy transmission device 24 continues to provide buoyancy to mounting base 223 and be gradually increased, mounting base 223 and mobile cavity at this time
221 can continue upper cunning along sliding rail 231, the top of chamber 23 until arrival weight falls.Therefore, buoyancy transfer device 24 passes through
It controls and the buoyancy of mounting base 223 is transmitted, the carrying that weight body recycles up and down may be implemented, control two-position three way vacuum air valve 1
The switching repeatedly of two kinds of connected states.
Wherein, the buoyancy transfer device 24 includes one second guide rod 241, and the top of second guide rod 241 is logical
The helicitic texture for crossing 223 bottom of the mounting base setting is threadedly coupled with the mounting base 223, second guide rod 241
Middle part is fixedly installed one first locating piece 242, and bottom end is fixedly installed one second locating piece 243, first locating piece 242
And second be provided with a clump weight 244 and a floating body 245 between locating piece 243, the clump weight 244 and the floating body 245 are equal
It is set on second guide rod 241, and the floating body 245 is set to the lower section of the clump weight 244.
Buoyancy transfer device 24 described in the above embodiment of the present invention, for transmitting buoyancy, control peace to mounting base 223
The motion state of seat 223 is filled, the buoyancy transfer device 24 includes mainly the second guide rod 241, clump weight 244 and floating body
245, wherein the top of floating body 245 is divided into a triangle body, and two pieces of locating pieces are fixedly installed on the second guide rod 241.Buoyancy passes
A part of delivery device 24 is arranged under liquid level, and when liquid level rises, floating body can float 245, pushes clump weight 244 along the
Two guide rods, 241 upward sliding can touch the first locating piece 242, if at this time when clump weight 244 rises to certain distance
Liquid level continues to rise, then floating body 245 will continue to rise, and push clump weight 244, the second guide rod 241 and mounting base 223 along
Sliding rail 231 rises.And when liquid level decline, floating body 245 can decline with the decline of liquid level, and clump weight 244 also can be in gravity
Under the action of decline, the holding position that mobile cavity 221 and mounting base 223 can be temporary under the action of suspension discharges structure 227 at this time
Set constant, when the bottom of floating body 245 touches the second locating piece 243, if liquid level continues to decline, clump weight 244 be will push
221 slide downward of second guide rod 241, mounting base 223 and mobile cavity, until weight falls what chamber 23 limited mobile cavity 221
Position and stop continuing to decline.
Schmidt's vacuum air valve described in the above embodiment of the present invention includes following working condition: buoyancy transmitting dress
Setting 24 floating body 245 can swim on liquid level, and weight body 226 at this time is placed on turnover panel 225, and turnover panel 225 falls with weight
The bottom surface of chamber 23 is in contact, and lever and cam 213 tilts upwards under the action of weight body 214, this is Schmidt's vacuum air valve
First state, two-position three way vacuum air valve 1 is the second connected state at this time, as shown in Figure 5；When liquid level rises, 245 meeting of floating body
Rise with the rising of liquid level, weight release device 22 is pushed to rise along sliding rail 231, turnover panel 225 can touch in the way of rising
Encounter overturning and stir body 232, so that turnover panel 225 can slowly be rotated around rotating plate shaft 224, weight body 226 is in will be with turnover panel
225 edges scrolled down through, this is the second state of Schmidt's vacuum air valve, and two-position three way vacuum air valve 1 is the second company at this time
Logical state, as shown in Figure 6；Then, weight body 226, which is tumbled from turnover panel 225 to weight, falls in chamber 23 and will be convex with lever
Second end in contact of wheel 213, this is the third state of Schmidt's vacuum air valve, and two-position three way vacuum air valve 1 is the second company at this time
Logical state, as shown in Figure 7；Then weight body 226 along weight fall chamber 23 tenesmus and will be under the second end of lever and cam 213
Pressure, lever and cam 213 will be rotated clockwise around rotary shaft 212, and switch clamping body 216 can be with the rotation of lever and cam 213
It moves downward, blocks return-air valve port 108 so that spool 209 moves downward, and lever and cam 213 can go to weight and fall chamber 23
The groove of bottom, turnover panel 225 can be restored to reset condition, this is the 4th state of Schmidt's vacuum air valve, and two three at this time
Logical vacuum air valve 1 is the first connected state, as shown in Figure 8；Finally, clump weight 214 can push therewith when liquid level is begun to decline
Weight release device 22 moves downward, and when until turnover panel 225 and weight fall, the bottom connection of chamber 23 is touched, weight body 226 can edge
The fall bottom surface of chamber 23 of weight rolled on the turnover panel 225 in mobile cavity 221 again, and lever and cam 213 also returns to and most starts
Position, spool 209 moves up again and blocks intake valve port 108, this is the 5th state of Schmidt's vacuum air valve, this
When two-position three way vacuum air valve 1 be the second connected state, as shown in Figure 1.Schmidt's vacuum air valve of the present invention can be completed
The circulation of one second state of first state, one the 4th the 5th state of state 1 of the third state 1, one first state, it is upper with liquid level
It rises and declines and change its state.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of Schmidt's vacuum air valve characterized by comprising
The first end of two-position three way vacuum air valve, the two-position three way vacuum air valve is provided with an air inlet, and second end is provided with
One gas outlet, third end are provided with a gas returning port, and the two-position three way vacuum air valve is used to form the only described air inlet and institute
The second connected state that the first connected state and the only described gas outlet for stating gas outlet connection are connected to the gas returning port；
Schmidt's pilot-controlled switch, Schmidt's pilot-controlled switch include a lever and cam switching device, the two-position three way vacuum
Air valve is connect with the lever and cam switching device, and Schmidt's pilot-controlled switch is cut by the lever and cam switching device
Change the first connected state and the second connected state of the two-position three way vacuum air valve.
2. Schmidt's vacuum air valve according to claim 1, which is characterized in that the two-position three way vacuum air valve includes one
Valve body is provided with a venting cavity in the valve body, an intake valve port, an outlet valve port and a return-air is provided on the venting cavity
Valve port, the intake valve port are connected to the air inlet, and the outlet valve port is connected to the gas outlet, the return-air valve port with
The gas returning port connection；A spool is provided in the venting cavity, the spool is used to that the return-air valve port to be blocked and be formed
The first connected state that the only described air inlet is connected to the gas outlet, and the intake valve port is blocked and is formed only
The second connected state that the gas outlet is connected to the gas returning port.
3. Schmidt's vacuum air valve according to claim 2, which is characterized in that the bottom end of the spool is fixedly installed one
First guide rod, the bottom end of first guide rod pass through the return-air valve port and extend outside the gas returning port.
4. Schmidt's vacuum air valve according to claim 3, which is characterized in that the lever and cam switching device includes convex
Fixing body is taken turns, a rotary shaft is provided on the cam fixing body, is rotatably provided with a lever and cam in the rotary shaft,
The first end of the lever and cam is fixedly installed a weight body, and a cam ring is additionally provided on the lever and cam；Switch folder
The bottom end of tight body, the switch clamping body is provided with a through-hole, and a rolling element axis of rolling is fixedly installed in the through-hole, described
A rolling element is provided on the rolling element axis of rolling, the rolling element is slidably arranged in the cam ring, and the lever and cam
The switch clamping body is able to drive to slide up and down in the sliding slot that cam fixing body top is arranged；The switch clamping body
Top be fixedly installed a clamping device, first guide rod is plugged on the clamping device and by clamping dress
It sets and grips.
5. Schmidt's vacuum air valve according to claim 1, which is characterized in that Schmidt's pilot-controlled switch further include:
Weight release device, the weight release device include a mobile cavity, and the first side of the mobile cavity is provided with one and opens
Mouth is put, the bottom of the mobile cavity is provided with a mounting base；
Weight falls chamber, is arranged in the mounting base, and fall the first side of chamber of the weight is connected with the opening port, institute
It states the fall first side of chamber of weight and is provided with a sliding rail, the first side of the mounting base is slidably arranged in by the sliding rail
The weight fall chamber first side on；
Buoyancy transfer device, is arranged in the bottom of the mounting base, and the buoyancy transfer device is used to transmit to the mounting base
Buoyancy controls the motion state of the mounting base.
6. Schmidt's vacuum air valve according to claim 4 or 5, which is characterized in that the lever and cam switching device with
The weight fall chamber connection, and the second end of the lever and cam be extended on the weight fall it is intracavitary.
7. Schmidt's vacuum air valve according to claim 6, which is characterized in that the weight release device includes a turnover panel
Axis, the rotating plate shaft are arranged on the inner wall of the first side of the mobile cavity, and one is rotatably provided on the rotating plate shaft and is turned over
Plate, is placed with a weight body on the turnover panel, and the weight body can fall chamber and the thick stick in the mobile cavity, the weight
Movement in bar cam switch device, the fall inner wall of the first side of chamber of the weight are provided with an overturning and stir body, and the overturning is dialled
Kinetoplast for changing the turnover panel motion state.
8. Schmidt's vacuum air valve according to claim 7, which is characterized in that the weight release device further includes one outstanding
Hang release structure, it is described suspension release structure include be arranged in the weight fall chamber top first part and be arranged described
The second part on mobile cavity top, the suspension release structure is for limiting and adjusting moving up and down for the mobile cavity.
9. Schmidt's vacuum air valve according to claim 5, which is characterized in that the buoyancy transfer device includes one second
Guide rod, the helicitic texture and the mounting base screw thread that the top of second guide rod is arranged by the mounting base bottom connect
It connects, one first locating piece is fixedly installed in the middle part of second guide rod, bottom end is fixedly installed one second locating piece, described
A clump weight and a floating body are provided between first locating piece and the second locating piece, the clump weight and the floating body are set in
On second guide rod, and the floating body is set to the lower section of the clump weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910201909.6A CN109798376A (en) | 2019-03-18 | 2019-03-18 | Schmidt's vacuum air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910201909.6A CN109798376A (en) | 2019-03-18 | 2019-03-18 | Schmidt's vacuum air valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109798376A true CN109798376A (en) | 2019-05-24 |
Family
ID=66562911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910201909.6A Pending CN109798376A (en) | 2019-03-18 | 2019-03-18 | Schmidt's vacuum air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109798376A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115435116A (en) * | 2022-10-25 | 2022-12-06 | 浙江智慧划云科技有限公司 | Vacuum control valve equipment and suction method |
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| CN204253933U (en) * | 2014-11-26 | 2015-04-08 | 霖城科技股份有限公司 | Vacuum valve |
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| CN109216105A (en) * | 2018-11-14 | 2019-01-15 | 湖南真创环保科技有限公司 | Schmidt's pilot-controlled switch |
| CN109300736A (en) * | 2018-11-14 | 2019-02-01 | 湖南真创环保科技有限公司 | Suspension release weight device |
| CN109399210A (en) * | 2018-11-14 | 2019-03-01 | 湖南真创环保科技有限公司 | Liquid buoyancy transports weight drop device |
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|---|---|---|---|---|
| US20080042090A1 (en) * | 2006-08-18 | 2008-02-21 | Restaurant Technologies, Inc. | Piloted solenoid valve assemblies and related methods |
| CN202927134U (en) * | 2012-11-22 | 2013-05-08 | 成都海科机械设备制造有限公司 | Three-way valve |
| CN204253933U (en) * | 2014-11-26 | 2015-04-08 | 霖城科技股份有限公司 | Vacuum valve |
| CN109216059A (en) * | 2018-11-14 | 2019-01-15 | 湖南真创环保科技有限公司 | Lever and cam switchs driving clamping device |
| CN109216105A (en) * | 2018-11-14 | 2019-01-15 | 湖南真创环保科技有限公司 | Schmidt's pilot-controlled switch |
| CN109300736A (en) * | 2018-11-14 | 2019-02-01 | 湖南真创环保科技有限公司 | Suspension release weight device |
| CN109399210A (en) * | 2018-11-14 | 2019-03-01 | 湖南真创环保科技有限公司 | Liquid buoyancy transports weight drop device |
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| CN115435116A (en) * | 2022-10-25 | 2022-12-06 | 浙江智慧划云科技有限公司 | Vacuum control valve equipment and suction method |
| CN115435116B (en) * | 2022-10-25 | 2023-01-31 | 浙江智慧划云科技有限公司 | Vacuum control valve equipment and suction method |
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Application publication date: 20190524 |