CN108253735A - For the safety device and vacuum drying tank of vacuum drying tank - Google Patents
For the safety device and vacuum drying tank of vacuum drying tank Download PDFInfo
- Publication number
- CN108253735A CN108253735A CN201710982637.9A CN201710982637A CN108253735A CN 108253735 A CN108253735 A CN 108253735A CN 201710982637 A CN201710982637 A CN 201710982637A CN 108253735 A CN108253735 A CN 108253735A
- Authority
- CN
- China
- Prior art keywords
- magnet
- safety device
- isolation cover
- vacuum drying
- tank body
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/04—Heating arrangements using electric heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Sustainable Development (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The present invention proposes a kind of safety device and vacuum drying tank for vacuum drying tank, is related to vacuum drying technique field.The tank body of the vacuum drying tank is equipped with through-hole, and safety device of the invention includes isolation cover, the first magnet, drawstring, the first magnetic strength component and controller.Isolation cover has open end and blind end, and open end is sealedly attached to through-hole, and blind end is located at outside tank body, and isolation cover is non-magnetic material.First magnet is movably disposed in isolation cover.Drawstring one end is connect with the first magnet, and the other end is located in tank body.First magnetic strength component is set on outside isolation cover, and can be triggered, and send out the first trigger signal when the first magnet removes the first predeterminable area.Controller is used for when receiving the first trigger signal, and control vacuum drying tank is stopped.
Description
Technical field
The present invention relates to vacuum drying technique field more particularly to a kind of safety devices and vacuum for vacuum drying tank
Drying chamber.
Background technology
Vacuum drying tank generally comprises tank body and tank commonly used in gas phase drying, heated-air drying and transformation method drying etc.
Door.When workpiece being dried by vacuum drying tank, need first to put the workpiece in tank body and pass through the sealing of tank goalkeeper tank body.With
Afterwards, vacuum drying tank can be made to be in vacuum state by vacuum extractor.Meanwhile need to being pressurizeed and being heated in tank body,
It is about 10Pa to make the pressure in tank body, and temperature is at 100-140 DEG C, and so as to which workpiece be dried, and above-mentioned pressure and temperature need
The long period is maintained, to ensure drying effect.
But when carrying workpiece or vacuum drying tank being operated, operating personnel are frequently necessary to enter in tank body；Such as
There is work carelessness or equipment fault in fruit, may result in operating personnel and is trapped in tank body, after tank body sealing, operating personnel
It can not get in touch with the external world；If at this point, directly starting drying process, the operations such as vacuumized, pressurizeed and heated, in tank body
Environment trapped person will be made to be difficult to survive, so as to be stranded operating personnel life security cause serious threat.
Above- mentioned information is only used for strengthening the understanding of the background to the present invention, therefore it disclosed in the background technology part
It can include not forming the information to the prior art known to persons of ordinary skill in the art.
Invention content
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, provide a kind of can make vacuum in vacuum drying tank
The safety device and vacuum drying tank for vacuum drying tank that drying chamber is stopped.
The additional aspect and advantage of the present invention will be set forth in part in the description, and partly will be from description
Be apparent from or can by the present invention practice and acquistion.
According to an aspect of the present invention, a kind of safety device for vacuum drying tank, the tank of the vacuum drying tank
Body is equipped with through-hole, and the safety device includes isolation cover, the first magnet, drawstring, the first magnetic strength component and controller.The isolation
Cover has open end and blind end, and the open end is seal-installed on the through-hole, and the blind end is located at outside the tank body, and
The isolation cover is non-magnetic material.First magnet is movably disposed in the isolation cover.Described drawstring one end and institute
The connection of the first magnet is stated, the other end is located in the tank body.The first magnetic strength component is set on outside the isolation cover, and can be in institute
It states when the first magnet removes the first predeterminable area and is triggered, and send out the first trigger signal.The controller is used to receive
During first trigger signal, the vacuum drying tank is controlled to be stopped.
According to an embodiment of the present invention, the safety device further includes the second magnetic strength component, the second magnetic strength group
Part is set on outside the isolation cover, and can be triggered, and send out second when first magnet removes first predeterminable area
Trigger signal.The controller is additionally operable to when receiving second trigger signal, and the vacuum drying tank is controlled to stop work
Make.
According to an embodiment of the present invention, the safety device further includes baffle and elastic component.The baffle is set on institute
It states in isolation cover and positioned at first magnet close to the side of the open end, and the baffle is equipped with and is passed through for the drawstring
Via, the baffle be non-magnetic material.Described elastic component one end is resisted against first magnet, and the other end is resisted against described
Baffle, and the elastic component can be compressed when first magnet is moved from first predeterminable area to the baffle.
According to an embodiment of the present invention, the first magnetic strength component is magnetic switch, and the magnetic switch is set on
The end face of the blind end；The second magnetic strength component is switched for magnetic floating ball, and magnetic floating ball switch is set on the isolation cover
Side wall.
According to an embodiment of the present invention, the second magnetic strength component include shell, guide rod, floating ball, the second magnet and
Trigger assembly.The housing vertical is set and with top end part and bottom end, the top end part is connect with the isolation cover, described
Shell is non-magnetic material.The guide rod is set in the shell, and the other end is pierced by the bottom end, and the guide rod is
Non-magnetic material.The floating ball is set in the shell and is slideably sheathed on outside the guide rod.Second magnet is fixed
In the floating ball, when first magnet is located at first predeterminable area, second magnet is inhaled by first magnet
The second predeterminable area is led to, when first magnet removes first predeterminable area, second magnet can be with described floating
Ball glides along the guide rod, to remove second predeterminable area.The trigger assembly is set on the guide rod, for sensing
Second magnet sends out second trigger signal when removing second predeterminable area.
According to an embodiment of the present invention, the second magnetic strength component further includes catch, and the catch is fixed on described
Guide rod and between the floating ball and the bottom end, for stopping that floating ball is contacted with the bottom end.
According to an embodiment of the present invention, the top end part is detachably connected with the isolation cover.
According to an embodiment of the present invention, the safety device further includes multiple directive wheels, and multiple directive wheels are set
In the inner wall of the tank body, the part that the drawstring is located in the tank body coordinates successively around each directive wheel.
According to an embodiment of the present invention, the safety device further includes alarm assemblies, the alarm assemblies with it is described
Controller connects.The controller is additionally operable to when receiving first trigger signal and/or second trigger signal, control
It makes the alarm assemblies and sends out alarm.
According to an aspect of the present invention, a kind of vacuum drying tank, the tank body including enclosure space can be surrounded, the tank body
Through-hole is equipped with, the vacuum drying tank further includes safety device as described above, and the safety device is seal-installed on described
Through-hole.
As shown from the above technical solution, the present invention has at least one of advantages below and good effect：
In the initial state, the first magnet is located at the first predeterminable area, at this point, the first magnetic strength component can sense the first magnetic
Iron；The operating personnel being trapped in tank body can make the first magnetic strength by pulling drawstring that the first magnet is removed the first predeterminable area
Component can not sense the first magnet and be triggered, and send out the first trigger signal；Controller can receive the first triggering letter
Vacuum drying tank is controlled to be stopped after number.The operating personnel being trapped in as a result, in tank body can make vacuum drying tank in tank body
It is stopped, stops drying process in time, prevent from causing safety accident due to work carelessness or equipment fault, make vacuum drying tank
Safety be improved.
Simultaneously as being tightly connected between isolation cover and tank body, so as to ensure the sealing performance of tank body, avoid in tank body
Vacuum environment is affected due to the through-hole of tank body, ensures that dry work can be smoothed out.
Description of the drawings
Its example embodiment is described in detail by referring to accompanying drawing, above and other feature of the invention and advantage will become
It is more obvious.
Fig. 1 is that the first magnet of example embodiment safety device of the present invention is located at the schematic diagram of the first predeterminable area；
Fig. 2 is the enlarged drawing in A portions in Fig. 1；
Fig. 3 is that the first magnet of example embodiment safety device of the present invention removes the schematic diagram of the first predeterminable area；
Fig. 4 is the schematic diagram of example embodiment vacuum drying tank of the present invention；
Fig. 5 is the enlarged drawing in B portions in Fig. 4.
In figure：1st, isolation cover；2nd, baffle；21st, via；3rd, the first magnet；4th, elastic component；5th, drawstring；6th, directive wheel；7th,
One magnetic strength component；8th, the second magnetic strength component；81st, shell；82nd, guide rod；83rd, floating ball；84th, the second magnet；85th, catch；86th, wiring
Head；9th, tank body；10th, tank door.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein.Although the term of relativity, example are used in this specification
Relativeness of icon component for another component is described such as " on ", " under ", but these terms are used for this explanation
Merely for convenient in book, for example, with reference to the accompanying drawings described in exemplary direction.It is appreciated that, if the device of icon overturn
It is made to turn upside down, then describe " on " component will become " under " component.The term of other relativities, such as
" top ", " bottom " etc. also make have similar meaning.When certain structure other structures " on " when, it is possible to refer to that certain structural integrity is formed
In in other structures or referring to certain structure " direct " and be arranged in other structures or refer to certain structure and set by another structure " indirect "
It puts in other structures.Term "one", " one ", "the" and " described " be representing that there are one or more elements/composition portions
Point/etc.；Term " comprising " and " having " to represent it is open be included look like and refer in addition to list element/
Also may be present except component part/wait other element/component part/etc.；Term " first ", " second " etc. only make as label
With not being to the limitation of the quantity of its object.
A kind of safety device for vacuum drying tank is provided in example embodiment of the present invention, which can be used
In kerosene oil-gas mutually drying, heated-air drying or transformation method drying etc., as shown in figure 4, the vacuum drying tank can include tank body 9 and tank
Door 10, one end of tank body 9 have tank mouth, and workpiece can pass in and out tank body 9 from tank mouth, a through-hole is offered on tank body 9.Tank door 10 can be close
Envelope is connected to tank mouth.Meanwhile the drying vacuum tank can also include vacuum pump, heating component, air valve and tank door drive assembly
Deng, wherein：Vacuum pump can be used for vacuumizing tank body 9.Heating component can be used for improving the temperature in tank body 9.Air valve
Tank body 9 can be set on, after air valve unlatching, tank body 9 can be made to be in communication with the outside, to abolish the vacuum environment in tank body 9.Tank door drives
Dynamic component can be hydraulic cylinder, cylinder or motor etc., for tank door 10 to be driven to move, to open or close the tank mouth of tank body 9.
Existing dry vacuum tank is specifically referred to, this will not be detailed here.
As Figure 1-Figure 5, the safety device of this example embodiment can include isolation cover 1, baffle 2, the first magnet
3rd, elastic component 4, drawstring 5, directive wheel 6, the first magnetic strength component 7, the second magnetic strength component 8 and controller.
In this example embodiment, isolation cover 1 can be tubular structure, and the shape of cross section can be round, rectangle
Or other shapes, particular determination is not done herein.Meanwhile isolation cover 1 can have open end and blind end so that isolation cover 1 can lead to
It crosses open end to be in communication with the outside, which can be set in the through-hole on above-mentioned tank body 9 and be tightly connected with the through-hole, the closing
End can be located at outside tank body 9, so as to block through-hole by isolation cover 1, ensure the sealing performance of tank body 9.Realize isolation cover 1 and tank
The mode that body 9 is tightly connected can be welding manner or the modes such as sealing ring are set between isolation cover 1 and through-hole, herein
It will not enumerate.In addition, the material of isolation cover 1 can be aluminium, but not limited to this, can also be that copper or stainless steel etc. are non-and leads
The metal of magnetic；Certainly, isolation cover 1 is not limited to the nonmetallic materials such as non-magnetic metal material or plastics, as long as
Non-magnet material.
In this example embodiment, as shown in Fig. 2, baffle 2 can be set in isolation cover 1, and dismountable side can be passed through
Formula is fixedly connected with isolation cover 1, such as：The outer rim of baffle 2 can be equipped with external screw thread, and the inner wall of isolation cover 1 can be equipped with internal thread, can
The mode that baffle 2 is connected through a screw thread is fixed in isolation cover 1, and the position of 2 controllable register 2 of flap shutter can be passed through；Or
Baffle 2 can be also directly connected in isolation cover 1 by person.Certainly, baffle 2 also can be by the non-removable mode such as welding, being bonded
It is fixedly connected with isolation cover 1.
Baffle 2 can be located at the first magnet 3 close to the side of the open end of isolation cover 1, so as to prevent the first magnet 3 from being opened from this
End is put to skid off.Meanwhile baffle 2 can offer via 21, the diameter of via 21 can be more than drawstring 5 so that drawstring 5 can be from via 21
In pass through, to be connect with the first magnet 3.In addition, baffle 2 can be identical with 1 use of isolation cover material or other non-magnetic
Material, this will not be detailed here.
In this example embodiment, the shape and size of the first magnet 3 can match with the inner wall of isolation cover 1, for example,
Isolation cover 1 is cuboid, then the first magnet 3 is cuboid；Isolation cover 1 is cylinder, then the first magnet 3 is cylinder.
Meanwhile first magnet 3 can be heat safe magnet, can specifically be selected according to the operating temperature of the first magnet 3, for example,
First magnet 3, which can be used, to work at a temperature of 120 DEG C -130 DEG C, and the magnetic magnet not disappeared, such as alnico magnet or
Ferrite lattice etc..Certainly, the first magnet 3 can also be magnet of the operating temperature not in the range of 120 DEG C -130 DEG C, herein not
It enumerates again.
First magnet 3 can be set in isolation cover 1, and can be moved reciprocating linear in isolation cover 1.Specifically, initial
Under state, the first magnet 3 can be at the first predeterminable area in isolation cover 1, at this point, the first magnet 3 is resisted against the envelope of isolation cover 1
The end face of closed end.The first magnet 3 can be made to move from first predeterminable area to baffle 2 by external force, it is first default to remove this
Region, it is of course also possible to the first magnet 3 be made to move into first predeterminable area again by external force.
In this example embodiment, elastic component 4 can be spring, and one end can be resisted against the first magnet 3, and the other end can
Baffle 2 is resisted against, and the spring can be sheathed on outside drawstring 5.When the first magnet 3 is in the first predeterminable area, elastic component 4 is in
Compressive state, and the first magnet 3 is held out against in blind end, prevent it from arbitrarily moving.When the first magnet 3 under the effect of external force to
When baffle 2 moves, elastic component 4 can be by the first further compression of magnet 3；When external force disappears, elastic component 4 can push the first magnet
3 reset, that is, return to the first predeterminable area, avoid manual reset.Certainly, elastic component 4 is not limited to spring, can also be rubber
Column, compressible air cushion etc., will not enumerate herein.In addition, elastic component 4 is while against the first magnet 3 and baffle 2,
It can be also fixedly connected with the first magnet 3 and baffle 2, specific connection mode does not do particular determination herein.
In this example embodiment, drawstring 5 can be that steel wire rope, nylon rope or other the flexible of drawing that can be used in connect
Fitting.One end of drawstring 5 can be connect with the first magnet 3, and the other end may pass through the via 21 on baffle 2, and extend to tank body 9
It is interior.The operating personnel being trapped in tank body 9 can make the first magnet 3 remove above-mentioned first predeterminable area by pulling drawstring 5.Drawstring
5 parts being located in tank body 9 can be set on the side wall of tank body 9, can also be directly placed at the bottom surface of tank body 9, and the length of the part
Particular determination is not done herein.Drawstring 5 may include with the mode that the first magnet 3 is connect：Drawstring 5 is directly bundled in the first magnetic
On iron 3；The fixed pull ring on the first magnet 3, drawstring 5 is fixedly connected with link；Alternatively, drawstring 5 is passed through into the first magnet 3 simultaneously
A stop part is being bundled across one end of the first magnet 3, to prevent drawstring 5 from being extracted out from the first magnet 3.Certainly, it also can be used
Drawstring 5 is connect by its mode with the first magnet 3, will not enumerate herein.
In this example embodiment, as shown in figure 4, the quantity of directive wheel 6 can be two, three, four or more
It is a.Multiple directive wheels 6 can be set on the inner wall of tank body 9.The part that drawstring 5 is located in tank body 9 can coordinate successively leads around each
To wheel 6, so as to which drawstring 5 is positioned and guided by multiple directive wheels 6, drawstring 5 is avoided to dissipate in tank body 9, is prevented
The entry/exit of workpiece is caused to interfere, and personnel easy to operation are pulled.Meanwhile side and the adjacent side of the inner wall of tank body 9
Corner can be equipped with directive wheel 6, so that drawstring 5 is guided to turn to.
For example, each directive wheel 6 may each comprise wheel carrier and wheel body, and wheel body can be rotatablely connected with wheel carrier, and wheel body
Peripheral surface is equipped with and 5 matched race of drawstring.Each directive wheel 6 and isolation cover 1 can be set in same level, and each guiding
The wheel carrier of wheel 6 can be by welding or using the modes such as being bolted and being individually fixed in 9 inner wall of tank body each side, each guiding
The wheel body of wheel 6 is horizontally disposed with, and the pivot center of each wheel body is vertically arranged.The part that drawstring 5 is located in tank body 9 can bypass successively
Each wheel body simultaneously coordinates the race for being placed in each wheel body so that the inner wall that drawstring 5 can surround tank body 9 is distributed.When drawstring 5 is pulled
When, each wheel body can rotate therewith.
In this example embodiment, the first magnetic strength component 7 can be magnetic switch, can be set on outside isolation cover 1, face
In the end face of the blind end with isolation cover 1, and the first magnetic strength component 7 can be fixedly connected with tank body 9, can also be fixed with isolation cover 1
Connection.First magnet 3 can be sensed by the first magnetic strength component 7, specifically, as shown in Figure 1, being located at the in the first magnet 3
During one predeterminable area, the first magnetic strength component 7 can sense the first magnet 3, not be triggered at this point, the first magnetic strength component 7 is in
State；As shown in figure 3, when the first magnet 3 removes first predeterminable area under the drawing of drawstring 5, the first magnetic strength component 7
It can not sense the first magnet 3, at this point, the first magnetic strength component 7 is triggered, and send out the first trigger signal.Above-mentioned magnetic switch
Concrete structure can refer to existing magnetic switch, this will not be detailed here, in addition, the first magnetic strength component 7 can also be magnetic induction
Sensor etc., it is not another herein as long as the first trigger signal can be sent out when the first magnet 3 removes the second predeterminable area
One enumerates.
In this example embodiment, the second magnetic strength component 8 can be set on outside isolation cover 1, and be fixed on the outside of isolation cover 1
Wall.As shown in Figure 1, when the first magnet 3 is located at the first predeterminable area, the second magnetic strength component 8 can sense the first magnet 3, this
When, which is in the state not being triggered；As shown in figure 3, when the first magnet 3 removes under the drawing of drawstring 5
During first predeterminable area, the second magnetic strength component 8 can not sense the first magnet 3, at this point, the second magnetic strength component 8 is triggered simultaneously
Send out the second trigger signal.
Second magnetic strength component 8 can be magnetic floating ball switch, magnetic switch or magnetic induction sensor etc., for example, the
Two magnetic strength components 8 can be that magnetic floating ball switchs, and can include shell 81, guide rod 82, floating ball 83, the second magnet 84, catch 85, connect
The end of a thread 86 and trigger assembly, wherein：
The tubular structure that shell 81 can be vertically arranged has top end part and bottom end, and top end part can be open architecture
Or enclosed construction, bottom end can be enclosed construction.The top end part of shell 81 can be equipped with external screw thread, and can be with above-mentioned first preset areas
Domain is opposite, and the region on the side wall of isolation cover 1 corresponding to shell 81 can open up screw hole or set female groove so that the top
End can be threadedly coupled with screw hole, so as to being detachably connected shell 81 and isolation cover 1.Certainly, shell 81 and isolation cover 1
Side wall can be also fixedly connected by being clamped or using dismountable mode such as being bolted.Meanwhile shell 81 can be used with being isolated
It covers 1 identical non-magnetic material or non-magnetic material different from isolation cover 1 can also be used, this will not be detailed here.
Guide rod 82 can be vertically arranged, and one end can be set in shell 81 and not contacted with isolation cover 1, and the other end can be pierced by outer
The bottom end of shell 81, and guide rod 82 and shell 81 can be fixedly connected by the modes such as welding, being clamped or be connected through a screw thread.Together
When, guide rod 82 can be the non-magnetic material identical with isolation cover 1 or can also be non-magnetic material different from isolation cover 1
Matter, this will not be detailed here.In addition, guide rod 82 can be tubular structure, it is internal that there is accommodating space or guide rod 82 can also be
Solid construction.
Floating ball 83 can be set in shell 81, and be sheathed on outside guide rod 82, can be reciprocatingly slided along guide rod 82.Floating ball 83 can also
It is non-magnetic conductive material or magnetic conductive material, specifically refers to the material of isolation cover 1, this will not be detailed here.
Second magnet 84 can also be set in shell 81 and be fixed on top or the other positions of floating ball 83.Meanwhile second magnetic
Iron 84 can be sheathed on outside guide rod 82, and can be reciprocatingly slided along guide rod 82, and certain second magnet 84 may be alternatively located at 82 side of guide rod.
When first magnet 3 is located at above-mentioned first predeterminable area, it is default that the second magnet 84 can be fixed on second under the attraction of the first magnet 3
Region, at this point, the position of the second magnet 84 and floating ball 83 remains stationary as；When the first magnet 3 removes above-mentioned first predeterminable area,
Second magnet 84 loses the attraction of the first magnet 3, under the action of 83 its own gravity of the second magnet 84 and floating ball, the second magnet 84
It can glide with floating ball 83 along guide rod 82, so as to leave the second predeterminable area.When the first magnet 3 returns to the first predeterminable area
When, the second magnet 84 can be attracted to the second predeterminable area again by the first magnet 3, reset the second magnet 84.Second magnet 84
Material can be identical with the first magnet 3, it is of course also possible to use different from the material of the first magnet 3, this will not be detailed here.
Catch 85 can be set in shell 81 and is fixed on guide rod 82, and catch 85 by the modes such as welding or being threadedly coupled
Can stop that floating ball 83 glides by catch 85 between floating ball 83 and the bottom end of shell 81, prevent with floating ball 83 with it is outer
The bottom end collision of shell 81.
Trigger assembly can be set on guide rod 82, and can sense the second magnet 84, glide in the second magnet 84 and remove second
During predeterminable area, exportable second trigger signal of trigger assembly.For example, trigger assembly can include magnetic reed switch, guide rod
82 can be tubular structure, which can be set in guide rod 82, and sensing to the second magnet 84.In the first magnet 3
During in the first predeterminable area, the second magnet 84 is located at the second predeterminable area and is remained fixed under the attraction of the first magnet 3.When
When first magnet 3 removes the first predeterminable area, the second magnet 84 loses the attraction of the first magnet 3 and glides, until removing second
During predeterminable area, it can trigger magnetic reed switch and export the second trigger signal.About the principle that triggering magnetic reed switch is moved by magnet
The operation principle of existing magnetic reed switch is can refer to, this will not be detailed here.Certainly, trigger assembly can also be used and be passed with magnetic induction
Sensor etc., will not enumerate herein.
Connector lug 86 can be set on one end that pull rod 82 stretches out shell 81, so that trigger assembly is connect with controller, wiring
First 86 structure does not do particular determination herein.
In this example embodiment, controller can be microcontroller, PLC (Programmable Logic
Controller, programmable logic controller) etc. microcontrollers, alternatively, controller can also directly use industrial computer
Wait control devices.Controller can receive above-mentioned the first trigger signal and the second trigger signal, and receive first at the same time and touch
It signals or the second trigger signal or when receiving alternative one, the controllable vacuum drying tank of controller is stopped.It is right
For the safety device of the first magnetic strength component 7 and the second magnetic strength component 8 is provided simultaneously with, even if the first magnetic strength component 7 and second
The damage of one of magnetic strength component 8, the still controllable vacuum drying tank of the safety device are stopped, and further improve safety.
Vacuum drying tank, which is stopped, can include stopping vacuumizing, stop heating, breaking vacuum state and open tank
Door 10 etc..For example, the vacuum pump of above-mentioned vacuum drying tank, heating component, air valve, tank door drive assembly can be with controls
Device connects, and when controller receives above-mentioned the first trigger signal and/or the second trigger signal, control assembly can control vacuum
Pump stops vacuumizing, and control heating component stops heating, and control air valve is opened, and control tank door drive opens tank door 10,
So as to ensure the safety of stranded operating personnel, and convenient for withdrawing in time.Certainly, vacuum drying tank, which is stopped, only to include
Stop vacuumizing, stop partial act among heating, breaking vacuum state and opening tank door 10.
In this example embodiment, alarm assemblies can be set on tank body 9 outside, can be audible-visual annunciator, buzzer or
Indicator light etc..Controller can be connect with alarm assemblies, receive above-mentioned the first trigger signal and/or the second trigger signal
When, controllable alarm assemblies send out alarm, the personnel outside tank body 9 to be reminded to carry out emergency processing in time.Send out the side of alarm
Depending on the type of formula visual alarm component, such as：If alarm assemblies are audible-visual annunciator, the mode of alarm is sent out to send out report
Alert sound simultaneously sends out warning light；If alarm assemblies are buzzer, the mode of alarm is sent out to send out alarm sound.
Example embodiment of the present invention also provides a kind of vacuum drying tank, as shown in Figure 4 and Figure 5, present embodiment it is true
Empty drying chamber can include the safety device in tank body 9 and any of the above-described example embodiment.
In the present embodiment, tank body 9 can surround an enclosure space, and tank body 9 has tank mouth, can on the side wall of tank body 9
Equipped with through-hole, the blind end of the isolation cover 1 of above-mentioned safety device can be set in the through-hole and is tightly connected with through-hole.
It should be noted that the vacuum drying tank of example embodiment of the present invention can also include other components, specifically may be used
With reference to the vacuum drying tank in above-mentioned example embodiment and existing vacuum drying tank, this will not be detailed here.
The operation principle of the safety device of example embodiment of the present invention is as follows：
In the initial state, the first magnet 3 is located at the first predeterminable area, at this point, the first magnetic strength component 7 and the second magnetic strength group
Part 8 is in the state not being triggered, and vacuum drying tank can work normally.
When operating personnel are trapped in the tank body 9 of vacuum drying tank, drawstring 5 can be pulled, to drive the first magnet 3 from the
One predeterminable area is moved to baffle 2.When the first magnet 3 removes the first predeterminable area, the first magnetic strength component 7 and the second magnetic strength group
Part 8 can not sense the first magnet 3, so as to be triggered, and send out the first trigger signal and the second trigger signal respectively.Control
When receiving the first trigger signal and/or the second trigger signal, controllable vacuum drying tank is stopped device, to ensure to operate
The safety of personnel.Meanwhile the also controllable alarm assemblies of controller send out alarm, and the operating personnel outside tank body 9 is reminded to sue and labour in time
And maintenance.
The safety device and vacuum drying tank of example embodiment of the present invention, due to only need to be by pulling drawstring 5 by first
Magnet 3 removes the first predeterminable area, you can vacuum drying tank is controlled to be stopped by controller so as to be trapped in tank body 9
Operating personnel can be operated in tank body 9, in time stop vacuum drying tank drying process, prevent because work carelessness or set
Safety accident is caused for failure, is improved the safety of vacuum drying tank.It is simultaneously as close between isolation cover 1 and tank body 9
Envelope connection, so as to ensure the sealing performance of tank body 9, avoids the vacuum environment in tank body 9 due to the through-hole of tank body 9 by shadow
It rings, ensures that dry work can be smoothed out.
It should be appreciated that the present invention is not limited in its application to the detailed construction and arrangement of the component of this specification proposition
Mode.The present invention can have other embodiment, and can realize and perform in many ways.Aforesaid deformation form and
Modification is fallen within the scope of the present invention.It should be appreciated that this disclosure and the present invention limited are extended in text
And/or it is mentioned in attached drawing or all alternative combinations of two or more apparent independent features.It is all these different
Combination forms multiple alternative aspects of the present invention.Embodiment described in this specification illustrates to become known for realizing the present invention
Best mode, and will enable those skilled in the art using the present invention.
Claims (10)
1. a kind of safety device for vacuum drying tank, which is characterized in that the tank body of the vacuum drying tank is equipped with through-hole, institute
Safety device is stated to include：
Isolation cover has open end and blind end, and the open end is seal-installed on the through-hole, and the blind end is located at described
Outside tank body, and the isolation cover is non-magnetic material；
First magnet is movably disposed in the isolation cover；
Drawstring, one end are connect with first magnet, and the other end is located in the tank body；
First magnetic strength component outside the isolation cover, and can be triggered when first magnet removes the first predeterminable area,
And send out the first trigger signal；
Controller, for the vacuum drying tank when receiving first trigger signal, to be controlled to be stopped.
2. safety device according to claim 1, which is characterized in that the safety device further includes：
Second magnetic strength component, outside the isolation cover, and can first magnet remove first predeterminable area when quilt
Triggering, and send out the second trigger signal；
The controller is additionally operable to when receiving second trigger signal, and the vacuum drying tank is controlled to be stopped.
3. safety device according to claim 1 or 2, which is characterized in that the safety device further includes：
Baffle, close to the side of the open end in the isolation cover and positioned at first magnet, and the baffle is set
There is the via passed through for the drawstring, the baffle is non-magnetic material；
Elastic component, one end are resisted against first magnet, and the other end is resisted against the baffle, and the elastic component can be described
One magnet is compressed when being moved from first predeterminable area to the baffle.
4. safety device according to claim 2, which is characterized in that the first magnetic strength component is magnetic switch, and institute
State the end face that magnetic switch is set on the blind end；The second magnetic strength component is switched for magnetic floating ball, and the magnetic floating ball switchs
Set on the side wall of the isolation cover.
5. safety device according to claim 4, which is characterized in that the second magnetic strength component includes：
Shell is vertically arranged and has top end part and bottom end, and the top end part is connect with the isolation cover, and the shell is non-
Magnetic conductive material；
Guide rod, one end are set in the shell, and the other end is pierced by the bottom end, and the guide rod is non-magnetic material；
Floating ball is sheathed in the shell and slideably outside the guide rod；
Second magnet is fixed on the floating ball, when first magnet is located at first predeterminable area, second magnet
Second predeterminable area is attracted to by first magnet, when first magnet removes first predeterminable area, described the
Two magnet can glide with the floating ball along the guide rod, to remove second predeterminable area；
Trigger assembly, set on the guide rod, for being sent out when sensing that second magnet removes second predeterminable area
Second trigger signal.
6. safety device according to claim 5, which is characterized in that the second magnetic strength component further includes：
Catch is fixed on the guide rod and between the floating ball and the bottom end, for stopping floating ball and the bottom end
Portion contacts.
7. safety device according to claim 5, which is characterized in that the top end part of the shell and the isolation cover are removable
Unload connection.
8. safety device according to claim 1 or 2, which is characterized in that the safety device further includes：
Multiple directive wheels, set on the inner wall of the tank body, the part that the drawstring is located in the tank body coordinates successively around each
A directive wheel.
9. safety device according to claim 2, which is characterized in that the safety device further includes：
Alarm assemblies are connect with the controller；
The controller is additionally operable to when receiving first trigger signal and/or second trigger signal, described in control
Alarm assemblies send out alarm.
10. a kind of vacuum drying tank, the tank body including that can surround enclosure space, the tank body are equipped with through-hole, which is characterized in that
The vacuum drying tank is further included such as claim 1-9 any one of them safety devices, and the safety device is seal-installed on
The through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710982637.9A CN108253735B (en) | 2017-10-20 | 2017-10-20 | Safety device for vacuum drying tank and vacuum drying tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710982637.9A CN108253735B (en) | 2017-10-20 | 2017-10-20 | Safety device for vacuum drying tank and vacuum drying tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108253735A true CN108253735A (en) | 2018-07-06 |
| CN108253735B CN108253735B (en) | 2023-10-20 |
Family
ID=62722127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710982637.9A Active CN108253735B (en) | 2017-10-20 | 2017-10-20 | Safety device for vacuum drying tank and vacuum drying tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108253735B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101211492A (en) * | 2006-12-26 | 2008-07-02 | 乐金电子(中国)研究开发中心有限公司 | Article anti-theft method, burglar proof mobile communication terminal and theftproof system |
| CN201421804Y (en) * | 2009-03-06 | 2010-03-10 | 崔志君 | Balance type displacement sensor |
| CN203444624U (en) * | 2013-07-16 | 2014-02-19 | 山东众泰达工业装备有限公司 | Safe apparatus for calling for help in autoclave |
| CN207365558U (en) * | 2017-10-20 | 2018-05-15 | 中山凯旋真空科技股份有限公司 | safety device and vacuum drying tank for vacuum drying tank |
-
2017
- 2017-10-20 CN CN201710982637.9A patent/CN108253735B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101211492A (en) * | 2006-12-26 | 2008-07-02 | 乐金电子(中国)研究开发中心有限公司 | Article anti-theft method, burglar proof mobile communication terminal and theftproof system |
| CN201421804Y (en) * | 2009-03-06 | 2010-03-10 | 崔志君 | Balance type displacement sensor |
| CN203444624U (en) * | 2013-07-16 | 2014-02-19 | 山东众泰达工业装备有限公司 | Safe apparatus for calling for help in autoclave |
| CN207365558U (en) * | 2017-10-20 | 2018-05-15 | 中山凯旋真空科技股份有限公司 | safety device and vacuum drying tank for vacuum drying tank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108253735B (en) | 2023-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207365558U (en) | safety device and vacuum drying tank for vacuum drying tank | |
| CN104444756B (en) | A kind of slow discharger of segmentation | |
| CN205937807U (en) | Interlocking safety device and pressure vessel | |
| CN108253735A (en) | For the safety device and vacuum drying tank of vacuum drying tank | |
| CN209158456U (en) | For robot security's protective device | |
| CN103967344B (en) | Safety intelligent lock | |
| CN102515012B (en) | Electromagnetic grabbing tool for nuclear power plant | |
| CN206664528U (en) | A kind of spring impact type breaks window power hammer | |
| CN201255295Y (en) | Safety device | |
| CN102515011B (en) | Pneumatic lifting tool for nuclear power plant | |
| CN106877118A (en) | Underwater robot automatic cable releasing device | |
| CN108253734A (en) | For the drawstring safety device and vacuum drying tank of vacuum drying tank | |
| CN208365937U (en) | Drawstring safety device and vacuum drying tank for vacuum drying tank | |
| CN209704208U (en) | Multifunctional intelligent door lock | |
| CN206764801U (en) | A kind of large-scale manipulator clip | |
| CN206950526U (en) | A kind of indoor antitheft Fire Hose | |
| CN107640707B (en) | A kind of trolley for gantry crane buffer unit in place | |
| CN102633185A (en) | Elastic rod-type automatic sling | |
| CN205583500U (en) | High prototype 10kv cubical switchboard valve mechanism | |
| CN205881737U (en) | Produce gas formula load switch cabinet interlock | |
| CN204792539U (en) | Interlock of isolator and earthing switch and circuit breaker | |
| CN202790819U (en) | Gas emergency cut-off valve | |
| CN208489538U (en) | A kind of outdoor electric cabinet | |
| CN108147251A (en) | A kind of overweight detection warning device of elevator | |
| CN207065050U (en) | A kind of danger zone detection means |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zheng Zhihai Inventor after: Li Changan Inventor after: Luo Zhenjiang Inventor after: Zeng Maosong Inventor before: Li Changan Inventor before: Luo Zhenjiang Inventor before: Zeng Maosong Inventor before: Zheng Qingqiang |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |