CN207365558U - safety device and vacuum drying tank for vacuum drying tank - Google Patents
safety device and vacuum drying tank for vacuum drying tank Download PDFInfo
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- CN207365558U CN207365558U CN201721375933.4U CN201721375933U CN207365558U CN 207365558 U CN207365558 U CN 207365558U CN 201721375933 U CN201721375933 U CN 201721375933U CN 207365558 U CN207365558 U CN 207365558U
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- isolation cover
- vacuum drying
- tank body
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Abstract
The utility model proposes a kind of safety device and vacuum drying tank for vacuum drying tank, it is related to vacuum drying technique field.The tank body of the vacuum drying tank is equipped with through hole, and the safety device of the utility model 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 connected with the first magnet, and the other end is located in tank body.First magnetic strength component is arranged on outside isolation cover, and can be triggered when the first magnet removes the first predeterminable area, and sends the first trigger signal.Controller is used for when receiving the first trigger signal, and control vacuum drying tank is stopped.
Description
Technical field
The utility model is related to vacuum drying technique field, more particularly to a kind of safety device for vacuum drying tank and
Vacuum drying tank.
Background technology
For vacuum drying tank commonly used in gas phase drying, heated-air drying and transformation method drying etc., it generally comprises tank body and tank
Door., it is necessary to first put the workpiece in tank body and sealed by tank goalkeeper tank body when workpiece being dried by vacuum drying tank.With
Afterwards, vacuum drying tank can be made to be in vacuum state by vacuum extractor.At the same time, it is necessary 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, so that workpiece is 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；At this time, if directly starting drying process, the operation 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 to the background of the utility model disclosed in the background section, because
This it can include not forming the information to the prior art known to persons of ordinary skill in the art.
Utility model content
The purpose of the utility model is to overcome above-mentioned the deficiencies in the prior art, there is provided one kind can make in vacuum drying tank
The safety device and vacuum drying tank for vacuum drying tank that vacuum drying tank is stopped.
The additional aspect and advantage of the utility model will be set forth in part in the description, and partly will be from retouching
It is apparent from stating, or can be by the practice of the utility model and acquistion.
One side according to the present utility model, a kind of safety device for vacuum drying tank, the vacuum drying tank
Tank body be equipped with through hole, the safety device includes isolation cover, the first magnet, drawstring, the first magnetic strength component and controller.It is described
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 the tank body
Outside, and the isolation cover is non-magnetic material.First magnet is movably disposed in the isolation cover.Described drawstring one end
It is connected with first magnet, the other end is located in the tank body.The first magnetic strength component is arranged on outside the isolation cover, and energy
It is triggered when first magnet removes the first predeterminable area, and sends the first trigger signal.The controller is used to connect
When receiving first trigger signal, the vacuum drying tank is controlled to be stopped.
An embodiment according to the present utility model, the safety device further include the second magnetic strength component, second magnetic
Feel component to be arranged on outside the isolation cover, and can be triggered when first magnet removes first predeterminable area, and send
Second trigger signal.The controller is additionally operable to, when receiving second trigger signal, control the vacuum drying tank to stop
Only work.
An embodiment according to the present utility model, the safety device further include baffle and elastic component.The baffle is set
In close to the side of the open end, and the baffle is equipped with and supplies the drawstring in the isolation cover and positioned at first magnet
The via passed through, the baffle are non-magnetic material.Described elastic component one end is resisted against first magnet, and the other end is resisted against
The baffle, and the elastic component can be pressed when first magnet is moved from first predeterminable area to the baffle
Contracting.
An embodiment according to the present utility model, the first magnetic strength component are magnetic switch, and the magnetic switch
Arranged on the end face of the blind end；The second magnetic strength component is magnetic floating ball switch, and magnetic floating ball switch be arranged on it is described every
From the side wall of cover.
An embodiment according to the present utility model, the second magnetic strength component include shell, guide rod, floating ball, the second magnetic
Iron and trigger assembly.The housing vertical sets and has top ends and bottom, and the top ends are connected with the isolation cover,
The shell is non-magnetic material.The guide rod is arranged in the shell, and the other end is pierced by the bottom, and described is led
Bar is non-magnetic material.The floating ball is arranged in the shell and is slideably sheathed on outside the guide rod.Second magnet
The floating ball is fixed on, when first magnet is located at first predeterminable area, second magnet is by first magnetic
Iron is attracted to the second predeterminable area, and when first magnet removes first predeterminable area, second magnet can be with institute
State floating ball to glide along the guide rod, to remove second predeterminable area.The trigger assembly is arranged on the guide rod, for feeling
It should arrive when second magnet removes second predeterminable area and send second trigger signal.
An embodiment according to the present utility model, the second magnetic strength component further include catch, and the catch is fixed on
The guide rod and between the floating ball and the bottom, for stopping that floating ball is contacted with the bottom.
An embodiment according to the present utility model, the top ends are detachably connected with the isolation cover.
An embodiment according to the present utility model, the safety device further include multiple directive wheels, multiple guiding
Arranged on the inner wall of the tank body, the part that the drawstring is located in the tank body coordinates around each directive wheel wheel successively.
An embodiment according to the present utility model, the safety device further include alarm assemblies, the alarm assemblies with
The controller connection.The controller is additionally operable to receiving first trigger signal and/or second trigger signal
When, control the alarm assemblies to send alarm.
One side according to the present utility model, a kind of vacuum drying tank, including the tank body of enclosure space can be surrounded, it is described
Tank body is equipped with through hole, and the vacuum drying tank further includes safety device as described above, and the safety device is seal-installed on
The through hole.
As shown from the above technical solution, the utility model possesses at least one of advantages below and good effect：
In an initial condition, the first magnet is located at the first predeterminable area, and at this time, 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 the first trigger signal；Controller can receive the first triggering letter
Vacuum drying tank is controlled to be stopped after number.Thus, the operating personnel being trapped in tank body can make vacuum drying tank in tank body
Be stopped, stop drying process in time, prevent because work carelessness or equipment fault and caused by security incident, make vacuum drying tank
Security 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 because of the through hole of tank body, ensures that dry work can be smoothed out.
Brief description of the drawings
Its example embodiment is described in detail by referring to accompanying drawing, the above and other feature and advantage of the utility model will
Become readily apparent from.
Fig. 1 is that the first magnet of the utility model example embodiment safety device is located at the signal of the first predeterminable area
Figure；
Fig. 2 is the enlarged drawing in A portions in Fig. 1；
Fig. 3 is that the first magnet of the utility model example embodiment safety device removes the signal of the first predeterminable area
Figure；
Fig. 4 is the schematic diagram of the utility model example embodiment vacuum drying tank；
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.
Embodiment
Example embodiment is described more fully with referring now to attached drawing.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 turned 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 refer to certain structure " direct " and be arranged in other structures, or refer to certain structure and set by another structure " indirect "
Put in other structures.Term "one", " one ", "the" and " described " be representing that there are one or more elements/composition portion
Point/etc.；Term " comprising " and " having " to represent it is open be included look like and refer to except list key element/
Also may be present outside part/wait other key element/part/etc.；Term " first ", " second " etc. only make as mark
With not being to the limitation of the quantity of its object.
A kind of safety device for vacuum drying tank, the vacuum drying tank are provided in the utility model example embodiment
Available for 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
With tank door 10, one end of tank body 9 has 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
It is sealably coupled in tank mouth.Meanwhile the drying vacuum tank can also include vacuum pump, heating component, air valve and the driving of tank door
Component etc., wherein：Vacuum pump can be used for vacuumizing tank body 9.Heating component can be used for improving the temperature in tank body 9.It is broken
Empty valve can be arranged on tank body 9, 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 drive assembly can be hydraulic cylinder, cylinder or motor etc., for driving tank door 10 to move, to open or close tank body 9
Tank mouth.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 its cross section can be circular, 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
Cross open end to be in communication with the outside, which can be arranged 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 it is not limited, can also be that copper or stainless steel etc. are non-and lead
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 arranged 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 connected 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 can be used and can worked 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
Enumerate again.
First magnet 3 can be arranged 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, and at this time, 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 be moved 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 make the first magnet 3 move into first predeterminable area again by external force.
In this example embodiment, elastic component 4 can be spring, and its 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 further be compressed by the first magnet 3；When external force disappears, elastic component 4 can promote 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 connected 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 part in tank body 9 can be arranged 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 connected：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, by drawstring 5 through the first magnet 3 simultaneously
A stop part is being bundled through one end of the first magnet 3, to prevent drawstring 5 from being extracted out from the first magnet 3.Certainly, it can also be used
Drawstring 5 is connected 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 arranged 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, avoid drawstring 5 from dissipating in tank body 9, prevent
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, to guide drawstring 5 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
Outer circumferential surface is equipped with and 5 matched race of drawstring.Each directive wheel 6 and isolation cover 1 can be arranged in same level, and each guiding
The wheel carrier of wheel 6 can be by welding or using the mode 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 inserting 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, it can be arranged 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, in the first magnet 3 positioned at the
During one predeterminable area, the first magnetic strength component 7 can sense the first magnet 3, and at this time, which is in and is not triggered
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 time, the first magnetic strength component 7 is triggered, and sends the first trigger signal.Above-mentioned magnetic switch
Concrete structure 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 when the first magnet 3 removes the second predeterminable area
One enumerates.
In this example embodiment, the second magnetic strength component 8 can be arranged on outside isolation cover 1, and is 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, and at this time, the second magnetic strength component 8 is triggered simultaneously
Send 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, it 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 ends and bottom, its top ends can be open architecture
Or enclosed construction, bottom can be enclosed construction.The top ends 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 that 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 isolating
1 identical non-magnetic material is covered, or the 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 its one end can be arranged in shell 81 and not contacted with isolation cover 1, and the other end can be pierced by outer
The bottom of shell 81, and guide rod 82 and shell 81 can be fixedly connected by the mode 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 the non-magnetic material different from isolation cover 1
Matter, this will not be detailed here.In addition, guide rod 82 can be tubular structure, its inside has accommodating space, or guide rod 82 can also be
Solid construction.
Floating ball 83 can be arranged in shell 81, and is 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 arranged 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 time, the position of the second magnet 84 and floating ball 83 remain 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 self gravitation 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 arranged in shell 81 and is fixed on by the mode such as welding or being threadedly coupled on guide rod 82, and catch 85
Can stop that floating ball 83 glides by catch 85 between floating ball 83 and the bottom of shell 81, prevent with floating ball 83 with it is outer
The bottom collision of shell 81.
Trigger assembly can be arranged 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 arranged 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 positioned at the second predeterminable area and keeps 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.On moving the principle of triggering magnetic reed switch by magnet
The operation principle of existing magnetic reed switch is referred to, this will not be detailed here.Certainly, trigger assembly can also be used and passed with magnetic induction
Sensor etc., will not enumerate herein.
Connector lug 86 can be arranged on one end that pull rod 82 stretches out shell 81, so as to which trigger assembly is connected 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. microcontroller, alternatively, controller can also directly use industrial computer
Deng control device.Controller can receive above-mentioned the first trigger signal and the second trigger signal, and receive first at the same time and touch
Signal 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
One of magnetic strength component 8 damages, and the still controllable vacuum drying tank of the safety device is stopped, and further improves security.
Vacuum drying tank, which is stopped, to be vacuumized including stopping, stopping 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 stopping vacuumizes, 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 easy to withdraw 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 arranged on tank body 9 outside, its can be audible-visual annunciator, buzzer or
Indicator light etc..Controller can be connected with alarm assemblies, receive above-mentioned the first trigger signal and/or the second trigger signal
When, controllable alarm assemblies send alarm, to remind the personnel outside tank body 9 to carry out emergency processing in time.Send the side of alarm
Depending on the type of formula visual alarm component, such as：If alarm assemblies are audible-visual annunciator, the mode for sending alarm is to send report
Alert sound simultaneously sends warning light；If alarm assemblies are buzzer, the mode for sending alarm is to send alarm sound.
The utility model example embodiment also provides a kind of vacuum drying tank, as shown in Figure 4 and Figure 5, present embodiment
Vacuum drying tank can include tank body 9 and any of the above-described example embodiment in safety device.
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 arranged in the through hole and is tightly connected with through hole.
It should be noted that the vacuum drying tank of the utility model example embodiment can also include other components, tool
Body refers to vacuum drying tank and existing vacuum drying tank in above-mentioned example embodiment, and this will not be detailed here.
The operation principle of the safety device of the utility model example embodiment is as follows：
In an initial condition, the first magnet 3 is located at the first predeterminable area, at this time, 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 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 alarm, remind the operating personnel outside tank body 9 to sue and labour in time
And maintenance.
The safety device and vacuum drying tank of the utility model example embodiment, due to only need to by pull drawstring 5 will
First magnet 3 removes the first predeterminable area, you can controls vacuum drying tank to be stopped by controller so as to be trapped in tank body
Operating personnel in 9 can be operated in tank body 9, stop the drying process of vacuum drying tank in time, be prevented because work is neglected
Or equipment fault and cause security incident, be improved the security of vacuum drying tank.Simultaneously as isolation cover 1 and tank body 9
Between be tightly connected, so as to ensure the sealing performance of tank body 9, avoid the vacuum environment in tank body 9 from being subject to because of the through hole of tank body 9
Influence, ensure that dry work can be smoothed out.
It should be appreciated that the utility model be not limited in its application to this specification proposition component detailed construction and
Arrangement.The utility model can have other embodiment, and can realize and perform in many ways.Foregoing change
Shape form and modification fall in the scope of the utility model.It should be appreciated that this disclosure and this reality limited
Mentioned or all alternative groups of two or more obvious independent features with the new text and/or drawings that extend to
Close.All these different combinations form multiple alternative aspects of the utility model.Embodiment described in this specification is said
Understand the best mode for becoming known for realizing the utility model, and those skilled in the art will be enable new using this practicality
Type.
Claims (10)
1. a kind of safety device for vacuum drying tank, it is characterised in that the tank body of the vacuum drying tank is equipped with through hole, institute
Stating safety device includes：
Isolation cover, has open end and blind end, and the open end is seal-installed on the through hole, and the blind end is positioned 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 connected 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 the first trigger signal；
Controller, for when receiving first trigger signal, controlling the vacuum drying tank to be stopped.
2. safety device according to claim 1, it is characterised 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 the second trigger signal；
The controller is additionally operable to, when receiving second trigger signal, control the vacuum drying tank to be stopped.
3. safety device according to claim 1 or 2, it is characterised 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, it is characterised in that the first magnetic strength component is magnetic switch, and institute
State the end face that magnetic switch is arranged on the blind end；The second magnetic strength component switchs for magnetic floating ball, and the magnetic floating ball switchs
Arranged on the side wall of the isolation cover.
5. safety device according to claim 4, it is characterised in that the second magnetic strength component includes：
Shell, is vertically arranged and has top ends and bottom, and the top ends are connected with the isolation cover, and the shell is non-
Magnetic conductive material；
Guide rod, one end are arranged in the shell, and the other end is pierced by the bottom, 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
By first attraction to the second predeterminable area, 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, arranged on the guide rod, for being sent when sensing that second magnet removes second predeterminable area
Second trigger signal.
6. safety device according to claim 5, it is characterised in that the second magnetic strength component further includes：
Catch, is fixed on the guide rod and between the floating ball and the bottom, for stopping floating ball and the bottom
Portion contacts.
7. safety device according to claim 5, it is characterised in that the top ends of the shell and the isolation cover are removable
Unload connection.
8. safety device according to claim 1 or 2, it is characterised in that the safety device further includes：
Multiple directive wheels, arranged on the inner wall of the tank body, the part that the drawstring is located in the tank body coordinates around each successively
A directive wheel.
9. safety device according to claim 2, it is characterised in that the safety device further includes：
Alarm assemblies, are connected 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 alarm.
10. a kind of vacuum drying tank, including the tank body of enclosure space can be surrounded, the tank body is equipped with through hole, it is characterised in that
The vacuum drying tank further includes such as claim 1-9 any one of them safety devices, the safety device and is seal-installed on
The through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721375933.4U CN207365558U (en) | 2017-10-20 | 2017-10-20 | safety device and vacuum drying tank for vacuum drying tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721375933.4U CN207365558U (en) | 2017-10-20 | 2017-10-20 | safety device and vacuum drying tank for vacuum drying tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207365558U true CN207365558U (en) | 2018-05-15 |
Family
ID=62421117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721375933.4U Active CN207365558U (en) | 2017-10-20 | 2017-10-20 | safety device and vacuum drying tank for vacuum drying tank |
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| Country | Link |
|---|---|
| CN (1) | CN207365558U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253735A (en) * | 2017-10-20 | 2018-07-06 | 中山凯旋真空科技股份有限公司 | For the safety device and vacuum drying tank of vacuum drying tank |
-
2017
- 2017-10-20 CN CN201721375933.4U patent/CN207365558U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253735A (en) * | 2017-10-20 | 2018-07-06 | 中山凯旋真空科技股份有限公司 | For the safety device and vacuum drying tank of vacuum drying tank |
| CN108253735B (en) * | 2017-10-20 | 2023-10-20 | 中山凯旋真空科技股份有限公司 | Safety device for vacuum drying tank and vacuum drying tank |
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