CN207759383U - A kind of rotating seal device for vacuum sealing system - Google Patents
A kind of rotating seal device for vacuum sealing system Download PDFInfo
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- CN207759383U CN207759383U CN201721674894.8U CN201721674894U CN207759383U CN 207759383 U CN207759383 U CN 207759383U CN 201721674894 U CN201721674894 U CN 201721674894U CN 207759383 U CN207759383 U CN 207759383U
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Abstract
The utility model discloses a kind of rotating seal devices for vacuum sealing system, including:Supporting rack comprising support base, support plate and supporting rod;Air-control device comprising main pipeline, vacuum device and inflation mechanism;Sealing device, including sealing mechanism, rotating mechanism, driving mechanism and control valve;Rotating mechanism includes hollow shaft, axle sleeve, driving wheel and magnetic fluid seal, hollow shaft lower end is connect with sealing mechanism, upper end and axle sleeve connect, axle sleeve upper end is connected to by control valve with main pipeline, driving wheel is connect with driving mechanism, and magnetic fluid seal is sealedly attached to hollow shaft outer wall and sleeve lining.Multiple sealing devices can be arranged in the utility model on the supporting plate, and realize that the synchronous of multiple test tubes encapsulates by the conducting of control valve, be conducive to improve packaging efficiency;And realize that test tube rotates under vacuum by rotating mechanism, manual control is avoided, harmony and the safety of heating sealing-in are improved, is also conducive to multiple test tubes and synchronizes encapsulation.
Description
Technical field
The utility model is related to vacuum sealing techniques, more particularly, to a kind of rotating seal for vacuum sealing system
Device.
Background technology
Currently, traditional vacuum sealing device is mostly built temporarily, generally combustion is provided using the bottled storage gas such as acetylene
Material, and carry out test tube after at high temperature vacuumizing test tube using vacuum pump and stretch contraction sealing-in.Due to existing vacuum sealing
The degree of automation of device is low, thus to the skill requirement of operating personnel height, especially sealing-in when, need manual control test tube to exist
It is constantly rotated under vacuum condition to ensure the uniformity of high-temperature heating, and then ensures that test tube stretches and shrink sealing-in, operation difficulty
Greatly, mortality is high, is unfavorable for efficient, safe packaged sample.
Utility model content
The purpose of the utility model is to overcome above-mentioned technical deficiencies, propose a kind of for the rotary of vacuum sealing system
Sealer, operation difficulty when solving sample Vacuum Package in the prior art is big, operating personnel are required with high technical problem.
To reach above-mentioned technical purpose, the technical solution of the utility model provides a kind of rotation for vacuum sealing system
Formula sealer, including:
Supporting rack a comprising support base, one are set to the support plate above the support base and connect the branch
Support at least two supporting rods of pedestal and support plate;
Air-control device a comprising main pipeline, vacuum device and inflation mechanism, the vacuum device and inflation mechanism
It is connected to the main pipeline;
At least one sealing device, at least one sealing device are set gradually along the support plate length direction, Mei Gesuo
It includes sealing mechanism, rotating mechanism, driving mechanism and control valve to state sealing device;The rotating mechanism includes hollow shaft, axis
Set, driving wheel and magnetic fluid seal, the hollow shaft lower end pass through support plate and connect with the sealing mechanism, upper end it is coaxial
It extends in the axle sleeve and is rotatably connected with the axle sleeve, the axle sleeve upper end is connected to by control valve with main pipeline, institute
Driving wheel is stated to be sheathed on hollow shaft opposing seal mechanism one end and connect with the driving mechanism, the magnetic fluid seal
It is sealedly attached to the hollow shaft outer wall and sleeve lining.
Compared with prior art, multiple sealing devices can be arranged in the utility model on the supporting plate, and pass through control valve
The synchronous encapsulation of multiple test tubes is realized in conducting, is conducive to improve packaging efficiency;And realize test tube in vacuum item by rotating mechanism
It is rotated under part, avoids manual control, improve harmony and the safety of heating sealing-in, be also conducive to multiple test tubes and synchronize envelope
Dress.
Description of the drawings
Fig. 1 is the attachment structure schematic diagram of the rotary type vacuum sealing system of the utility model;
Fig. 2 is the attachment structure schematic diagram of the rotating seal device of the utility model;
Fig. 3 is the structural schematic diagram of the angle adjusting mechanism of the utility model;
Fig. 4 is the sealing schematic diagram of the sealing mechanism of the utility model;
Fig. 5 is the schematic cross-sectional view of the clamp assemblies of the utility model;
Fig. 6 is the structural schematic diagram of the isolating valve of the utility model;
Fig. 7 is the structural schematic diagram of the sealing clamp of the utility model;
Fig. 8 is the rotating mechanism schematic cross-sectional view of the utility model;
Fig. 9 is the attachment structure schematic diagram of the annular burner of the utility model.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figure 1, the utility model provides a kind of rotary type vacuum sealing system comprising supporting rack 1, gas control dress
Set 2, at least one annular sealing-in device 3 and at least one sealing device 4, supporting rack 1, air-control device 2 and sealing dress therein
The rotating seal device of 4 composition the present embodiment is set, which can match with single pipette tips heater such as existing acetylene cylinder
Encapsulation is closed, can also coordinate with annular sealing-in device 3 and encapsulate.Specifically, the present embodiment is vacuumized and is filled by the control of air-control device 2
Enter protective gas, supporting rack 1 is mainly used for supporting at least one sealing device 4 in favor of operation, and sealing device 4 can be by test tube 5
Sealing is fixed, and is coordinated in favor of vacuumizing, being filled with the behaviour such as protective gas, encapsulation with air-control device 2 and annular sealing-in device 3
Make.Annular sealing-in device 3 can be arranged one, may also set up multiple, can coordinate and be heated to multiple test tubes 5.
As shown in Figure 1 and Figure 2, supporting rack 1 includes the branch that a support base 11, one is set to 11 top of the support base
At least two supporting rods 13 of fagging 12 and the connection support base 11 and support plate 12, the quantity of supporting rod 13 can be according to close
Then corresponding multiple supporting rods 13 can be arranged, when sealing device 4 is more to ensure support plate 12 in how much settings of seal apparatus 4
The stability of support.
As shown in Figures 1 to 3, under conventional situation, support plate 12 is in horizontality, and sealing device 4 is then in vertical shape
State, in practical application, for different samples or in the case where different encapsulation requires, is needed so that test tube 5 is fixed state in a vertical shape
Adjust the encapsulation angle of test tube 5, thus the present embodiment support frame as described above 1 further include set on the support plate 12 and supporting rod 13 it
Between at least one angle adjusting mechanism 14 comprising lower jaw 141, upper hinge 142 and hold-down bolt 143, the lower jaw
141 middle parts upwardly extend to form a support portion 141a, and 142 one side of upper hinge is formed with one and houses the support portion 141a
Support slot 142a, 143 one end of the hold-down bolt pass through across the support slot 142a and with the support portion 141a screw threads
Cooperation, and the support slot 142a slot bottoms is made to be pressed in the support portion 141a;Wherein, the width of the support slot 142a is more than
The width of the support portion 141a.When its specific effect, upper hinge 142 is connected to 12 lower surface of support plate, and lower jaw 141 connects
In supporting rod 13, support plate 12 can be realized by hold-down bolt 143 controls upper hinge 142 and lower jaw 141 closely abuts
The fixation of opposite supporting rod 13 can will rotatably compress bolt 143 when needing to adjust the angle of 12 relative level of support plate,
Due to the width substantially width of support portion 141a of support slot 142a, then support portion 141a can be at the certain angle of support slot 142a progress
Degree rotation, i.e. upper hinge 142 can opposite lower jaw 141 with the rotation that hold-down bolt 143 is axis progress certain angle, when turning to
When the angle of demand, hold-down bolt 143 is screwed, then upper hinge 142 and lower jaw 141 are relatively fixed.Wherein, for the ease of behaviour
Make, seven word bolts can be used in the hold-down bolt 143 of the present embodiment.
The quantity of the angle adjusting mechanism 14 of the present embodiment can be arranged as required to, and when sealing device 4 is more, then be supported
The weight that plate 12 carries is larger, therefore multiple supporting rods 13 and multiple angle adjusting mechanisms 14 can be arranged;Under normal circumstances, Jin Jinyi
A supporting rod 13 is connect by angle adjusting mechanism 14 with support plate 12, and other supporting rods 13 can be then articulated under support plate 12
Surface.
It is rotated relative to lower jaw 141 to carry out angular adjustment for the ease of upper hinge 142, support portion described in the present embodiment
The upper surfaces 141a are arc-shaped, are set as with the upper ends the support portion 141a towards the arc agreed in the middle part of the support slot 142a cell walls
Shape may make hinge 142 to be rotated by fulcrum of the upper surface of support portion 141a arcs, and the support slot 142a's of arc
The arc-shaped upper ends face of cell wall and support portion 141a can turn an angle as needed under agreeing with.The support slot 142a of the present embodiment
Width generally be slightly larger than support portion 141a, may make hinge 142 with respect to lower jaw 141 rotation 0~20 °.
As shown in Figure 1 and Figure 2, the present embodiment air-control device 2 includes a main pipeline 21, vacuum device 22, inflation mechanism
23, four-way valve 24, vacuum inspective meter 25, main pipeline 21 is along 12 length direction of support plate arrangement and is located above support plate 12,
It can be fixed on 12 top of support plate by main pipeline fixed plate 211, and an interface and 21 one end of main pipeline of four-way valve 24 connect
It connects, the other three interface is connect with vacuum inspective meter 25, vacuum device 22, inflation mechanism 23 respectively, to be conducive to vacuum
The real-time vacuum degree detected in main pipeline 21 of detector 25, vacuum device 22 is spent can then to carry out test tube 5 by main pipeline 21
Vacuum pumping, inflation mechanism 23 are filled with protective gas by main pipeline 21 into test tube 5.
One or three are arranged between the inflation mechanism 23 and the four-way valve 24 for the ease of inflation and pressure release, the present embodiment
To regulating valve 26, the three-dimensional regulating valve 26 is made of relief valve and triple valve, the first interface and inflation mechanism of the triple valve
23 connections, second interface and four-way valve 24 connect, and relief valve is then set to the third interface of triple valve, when triple valve conducting the
It is then inflated when one interface and second interface, when conducting third interface and second interface are to carry out pressure release, and work as first interface
When not being connected with second interface with third interface, then vacuum pumping can be carried out.
In practical application, the granular size of the sample encapsulated is needed to differ, therefore the present embodiment is in the vacuum device
One diversion mechanism 27 is set between 22 and the four-way valve 24 comprising a main vacuum-pumping tube 271 is set to the main vacuum-pumping tube
The auxiliary vacuum-pumping tube 283 and be set to institute that the main valve 272 at 271 middle parts, both ends are connected to 271 both ends of main vacuum-pumping tube respectively
State the auxiliary valve 274 at 273 middle part of auxiliary vacuum-pumping tube;Wherein, the internal diameter of the main vacuum-pumping tube 271 is more than auxiliary vacuum-pumping tube 273
Internal diameter.For the solid material sample of bulky grain, auxiliary valve 274 can be closed, open main valve 272, it can be quickly by test tube 5
It vacuumizes, and for smaller, lighter powdered samples, then it can close main valve 272, open auxiliary valve 274, it is true that pumping can be slowed down
Empty speed avoids pumping speed is excessive sample is caused to suck vacuum device 22;Moreover, in practical application, main valve can be passed through
272 and auxiliary valve 274 switching control different sealing device 4 vacuum pumping, can be improved and vacuumize efficiency, avoid taking out true
The continuous switch of empty device.Conventional vacuum pump can be used in the vacuum device 22 of the present embodiment.
As shown in Fig. 2, the sealing device 4 of the present embodiment includes sealing mechanism 41, rotating mechanism 42, driving mechanism 43
And control valve 44;Test tube 5 can be sealed and be fixed by sealing mechanism 41, and rotating mechanism 42 is the vacuum rotating for realizing test tube 5, driving machine
Structure 43 can drive rotating mechanism 42 that sealing mechanism 41 is driven to rotate, and control valve 44 can control main pipeline 21 to be connected with test tube 5.
As described in Fig. 4, Fig. 5, the sealing mechanism 41 includes an isolating valve 411 and detachably connects with 411 lower end of isolating valve
The clamp assemblies 412 connect, the clamp assemblies 412 include a connector 412a, clamp nut sleeve 412b, compression ring 412c and
O-ring 412d, the upper ends clamp nut sleeve 412b extend radially inwardly shape with the connector 412a screw-thread fits, lower end
The one end inner chamfer a12, the compression ring 412c is formed at the lower faces press flange a11, the connector 412a to abut
The press flange a11, the other end are connected to the O-ring 412d and the O-ring 412d are made to be pressed in the inner chamfer a12
Fillet surface.Clamp assemblies 412 can be used for grip seal test tube 5, when specifically acting on, O-ring 412d can resilient sleeve be set to examination
The peripheral surface of pipe 5, compression ring 412c can be sheathed on test tube 5, and O-ring 412d is close to the open end of test tube 5, then by test tube 5
Open end is inserted into connector 412a, by clamp nut sleeve 412b pass through test tube 5 closed end and with connector 412a screw threads
The press flange a11 of cooperation, clamp nut sleeve 412b abuts compression ring 412c and makes compression ring 412c close to connector 412a
O-ring 412d, can be pressed the lower face for being connected to connector 412a by lower face, and the lower faces connector 412a are formed in one
Chamfering a12 can increase the compactness of O-ring 412d and connector 412a cooperations, and since O-ring 412d resilient sleeves are set to test tube
5, therefore O-ring 412d can realize the sealing of connector 412a inner walls and 5 outer wall of test tube.411 one end of isolating valve and rotating mechanism 42
Removable seal connection, the other end and 412 removable seal of clamp assemblies connect, and clamp assemblies 412 can be convenient for from isolating valve
411 dismantle the dismounting in favor of test tube 5, addition sample etc., and isolating valve 411 can be disassembled by rotating mechanism 42 and then be conducive to examination
Pipe 5 disassembles under vacuum conditions, i.e., can close isolating valve 411 after test tube 5 vacuumizes, then by sealing mechanism 41 from
Rotating mechanism 42, which disassembles, to be individually packaged.
In order to improve the compression effect of compression ring 412c, compression ring 412c described in the present embodiment includes compressing ring body c11
And extended radially outwardly by the lower ends compression ring body c11 the coaxial flange c12 formed, the outer diameter of the coaxial flange c12 and institute
It is O-shaped so that clamp nut sleeve 412b driving compression rings 412c is compressed for the identical setting of internal diameter for stating clamp nut sleeve 412b
When enclosing 412d, compression ring 412c is pressed against that ut socket 412b is coaxial, and then ensures the alignment of itself and test tube 5, is conducive to
Improve the sealing effect of test tube 5.
As also shown in e.g. figs. 4-7, the present embodiment can be used sealing clamp 413 in order to connector 412a and isolating valve 411 can
Dismounting is tightly connected, and sealed interface a13 on one can be arranged in the upper ends connector 412a, and is arranged one in 411 lower end of isolating valve
Lower sealed interface 411a, sealing clamp 413 can drive sealed interface a13 and lower sealed interface 411a is opposite to abut sealing,
One sealing ring, upper sealed interface a13 and lower sealed interface can be also set between upper sealed interface a13 and lower sealed interface 411a
411a closely abuts sealing ring under the action of sealing clamp 413 and is torn open with realizing sealing, and unscrewing sealing clamp 413 can be realized
It unloads.
Wherein, the upper sealed interface a13 has an outer diameter gradual increased upper compressed part a131 from the bottom to top, under described
Sealed interface 411a has an outer diameter gradual increased lower compressed part from top to bottom;The sealing clamp 413 includes left clip
413a, one end and right clip the 413b hinged left clip 413a, the screw rod for being articulated with the free ends right clip 413b
413c and with the screw rod 413c screw-thread fits and the close butterfly of left clip 413a and the free ends right clip 413b can be driven
Nut 413d;Wherein, the left clip 413a and right clip 413b are arc-shaped, and its opposite side is respectively arranged with left pressing groove
With right pressing groove, the two side of the left pressing groove and right pressing groove is connected to the upper compressed part a131 and lower compressed part respectively
Peripheral surface.Specifically, upper sealed interface a13 is integrally formed by upper cylindrical portion a132 and upper compressed part a131, upper cylindrical portion
A132 and upper compressed part a131 in a tubular form, and the identical setting of the two internal diameter, upper compressed part a131 upper end outer diameters and upper cylindrical portion
The identical setting of outer diameter of a132, and the outer diameter of upper compressed part a131 gradually increases from the bottom to top, particularly compressed part a131 can be set
Set tapered, lower sealed interface 411a is roughly the same with the upper shape of sealed interface a13, by respectively with upper cylindrical portion a132 and
The upper symmetrically arranged lower cylindrical portions of compressed part a131 and lower compressed part composition;Left clip 413a and right clip 413b is arc-shaped and connects
The arc agreed with upper sealed interface a13 and lower sealed interface 411a phases can be arranged in nearly semicircular arc, left pressing groove and right pressing groove
Shape, when wing nut 413d is moved along screw rod 413c and drives the free ends left clip 413a close to right clip 413b, left compression
Slot and right pressing groove are to close, and the two side of left pressing groove and right pressing groove is connected to compressed part a131 and lower compression
Portion can drive compressed part a131 and lower compressed part mutually close, and then upper cylindrical portion a132 and lower cylindrical portion is driven to abut against
Or upper cylindrical portion a132 and lower cylindrical portion are pushed against in sealing ring.Wing nut 413d is unscrewed, screw rod 413c is turned into disengaging
Left clip 413a and the free ends right clip 413b separate when the locking slot of the free ends left clip 413a, and then by sealing clamp
413 dismountings.
Wherein, the left pressing groove and right pressing groove are in isosceles trapezoid, and its side wall respectively with upper compressed part a131 and
The peripheral surface of lower compressed part matches, and can increase the stability of compression.
As shown in figure 8, rotating mechanism 42 described in the present embodiment includes hollow shaft 421, axle sleeve 422, driving wheel 423 and magnetic current
Body sealing element 424,421 lower end of the hollow shaft pass through support plate 12 and connect with the sealing mechanism 41, upper end coaxially extends
It is rotatably connected in the axle sleeve 422 and with the axle sleeve 422,422 upper end of the axle sleeve passes through control valve 44 and main pipeline
21 connections, the driving wheel 423 are sheathed on 421 opposing seal mechanism of the hollow shaft, 41 one end and connect with the driving mechanism 43
It connects, the magnetic fluid seal 424 is sealedly attached to 422 inner wall of 421 outer wall of the hollow shaft and axle sleeve.Specifically, hollow shaft
421 lower ends are connect across support plate 12 with 411 upper end removable seal of isolating valve, and 422 upper end of axle sleeve then can with control valve 44
Dismounting is tightly connected, the connection type base of the above-mentioned mode being detachably connected and upper sealed interface a13 and lower sealed interface 411a
This is identical, therefore is not described in detail.421 upper end of hollow shaft is rotatably connected with axle sleeve 422, specifically can the setting in axle sleeve 422
Two bearings 425, the inner ring of bearing 425 is sheathed on the hollow shaft 421, outer ring is connected to 422 inner wall of the axle sleeve, magnetic fluid
Sealing element 424 may be disposed between two bearings 425, can realize the sealing between 422 inner wall of 421 outer wall of hollow shaft and axle sleeve
Connection, magnetic fluid seal 424 can be used existing usual manner and realize, therefore not be described in detail.For the ease of rotating mechanism
42 installation can be arranged and the one-to-one at least one storage tank 121 of rotating mechanism 42, the storage tank in support plate 12
121 can run through 12 upper and lower surface of support plate, and driving wheel 423 can be built in storage tank 121, and axle sleeve 422 can pass through 422 frame of axle sleeve
Be fixed in support plate 12,422 upper end of axle sleeve can be connected to by control valve 44 with main pipeline 21, and then realize main pipeline 21 with
The connection of 5 open end of test tube.And driving wheel 423 is sheathed on hollow shaft 421, and hollow shaft 421 can be driven with respect to 422 turns of axle sleeve
It is dynamic, and then the test tube 5 on sealing mechanism 41 and sealing mechanism 41 is driven to be rotated relative to axle sleeve 422, it is conducive to the envelope of follow-up test tube 5
It connects.
For the ease of being rotatably connected for hollow shaft 421 and axle sleeve 422, hollow shaft 421 described in the present embodiment includes under
To top external diameter diminishing first rank portion 421a, second-order portion 421b and third rank portion 421c, in third rank portion 421c
It is placed in the axle sleeve 422, the driving wheel 423 is sheathed on the second-order portion 421b.Moreover, first rank portion peripheries 421a
Face is formed with an annular slot, a snap ring 426 in a ring can be arranged, and 426 part of snap ring cooperation is fastened in the ring
In shape card slot, and 426 another part of snap ring then coordinates and is connected on bearing 425, when needing hollow shaft 421 and axle sleeve 422
, can be by snap ring 426 by being disassembled in card slot when dismounting, then hollow shaft 421 can be conducive to sky directly by extraction in axle sleeve 422
The replacement of mandrel 421.
Axle sleeve 422 described in the present embodiment extends radially inwardly to form a defining flange 422a close to the upper end, one of them
425 upper surface of the bearing is connected to the defining flange 422a and snap ring 426,425 lower face of bearing described in other in which
It is connected to the upper surface of the second-order portion 421b, to which the position that hollow shaft 421 coordinates with axle sleeve 422 be positioned,
Be conducive to the stability for increasing hollow shaft 421 and axle sleeve 422 coordinates.
Moreover, 425 lower end of the present embodiment bearing can a built-in bearing pressure ring 427, can be used for supporting underlying axis
425 are held, ensures the stability of bearing 425.
As shown in Fig. 2, driving mechanism 43 described in the present embodiment includes a driving for driving the driving wheel 423 to rotate
Motor 431 and one is used to control the motor driver 432 of the driving motor 431 switch and velocity of rotation, driving motor 431
Output shaft is extended in storage tank 121 and is connect with driving wheel 423 to drive 421 uniform rotation of hollow shaft by belt.Motor
Driver 432 can be used for controlling switch and the speed governing of motor, and setting control switch 432a and speed governing button 432b are realized.
And in order to avoid rotating mechanism 42, driving mechanism 43 and main pipeline 21 are exposed to outside, a shell 15 can be set, the shell
The lower open end of body 15 is connected to support plate 12, and rotating mechanism 42, driving mechanism 43 and main pipeline 21 can be built in the shell
15。
As shown in Fig. 1, Fig. 9, the present embodiment annular sealing-in device 3 includes a ring heater 31, an oxyhydrogen machine 32, connection
Ring heater 31 and the gas pipeline of oxyhydrogen machine 32 33 and one support the heated holder 34 of the ring heater 31;The ring
Shape heater 31 includes heating tube 311, three-way pipe 312, air inlet pipe 313 and intake valve 314, and the three-way pipe 312 includes connection
Pipe 312a and conduction pipe 312b, the connecting tube 312a is arc-shaped, in the one end the conduction pipe 312b and the connecting tube 312a
Portion's connection, the other end are connect with 313 removable seal of the air inlet pipe;The heating tube 311 is in major arc shape, and its both ends is distinguished
It is connect annularly with the both ends the connecting tube 312a;The intake valve 314 is set to 313 middle part of the air inlet pipe;Wherein, described to add
311 inner arc side of heat pipe is evenly arranged with multiple bottoming hole 311a along its length.When its specific effect, what oxyhydrogen machine 32 generated
Burning gases are entered by gas pipeline 33 in the air inlet pipe 313 of ring heater 31, and flow valve can be used in intake valve 314, can
The flow of burning gases is controlled, burning gases can enter three-way pipe 312 by air inlet pipe 313, and by the bottoming hole of heating tube 311
311a sprays burning and forms flame, can form annular flame by forming the multiple bottoming hole 311a being uniformly arranged successively with right
5 peripheral surface of test tube is evenly heated, in order to encapsulate, the test tube 5 larger especially for outer diameter, thickness is larger, and packaging effect
More preferably.
The heated holder 34 includes a pedestal 341, is rotatably connected with pedestal 341 lower body of rod 342, be articulated with it is described
The upper body of rod 343 of 342 upper end of lower body of rod and clamping part 344 set on 343 free end of the upper body of rod, clamping part 344 can be clamped
In 313 middle part of air inlet pipe, upper body of rod 343 is hinged with lower body of rod 342 so that upper body of rod 343 can vertically put down with respect to lower body of rod 342
It rotates by a certain angle in face and then adapts to the test tube 5 that there are different angles from perpendicular, i.e., when angle adjusting mechanism 14 adjusts
When support plate 12 and the angle of horizontal plane, then angle is formed between test tube 5 and perpendicular, and it can pass through upper body of rod 343
Opposite lower body of rod 342 rotates by a certain angle and is matched with test tube 5, may make heating tube 311 and test tube 5 coaxial, and lower body of rod
342 are rotatably connected with pedestal 341, then any angle in perpendicular of lower body of rod 342 is convenient for rotate in order to according to reality
The heating for carrying out test tube 5 is needed to encapsulate.
The clamping part 344 includes left clamping part 344a, right clamping part 344b and a grip bolt 344c, the left clamping
Portion 344a and the opposite sides right clamping part 344b, which are respectively arranged with, can coordinate the left holding tank for being held on air inlet pipe 313 and right clamping
Slot, the one end the grip bolt 344c pass through right clamping part 344b and with left clamping part 344a screw-thread fits, by screw clamping
Bolt 344c may make right clamping part 344b close to left clamping part 344a so that left holding tank and right holding tank be clamped in into
On tracheae 313.
The heated holder 34 further includes an expansion screw 345,345 one end of the expansion screw under left clamping part 344a
End connection, 343 screw-thread fit of the other end and upper body of rod, upper body of rod 343 may be configured as a tubular rod, and inner wall is provided with and stretches
The internal thread that screw rod 345 coordinates can be realized by the screw-thread fit of expansion screw 345 and upper body of rod 343 and be stretched, and then adjusted
The length of heated holder 34 is suitable for the sealing-in of the test tube 5 of different height.
343 lower end of upper body of rod is hinged with lower body of rod 342 by a fastening bolt 346, and the end of thread of the fastening bolt 346 is worn
Cross 343 lower end of upper body of rod and with 342 screw-thread fit of lower body of rod, upper body of rod 343 can be pressed in lower beam by fastening bolt 346
Body 342 can unscrew fastening bolt 346 when needing to adjust the angle between upper body of rod 343 and lower body of rod 342, then adjust
Angle between the body of rod 343 and lower body of rod 342 screws fastening bolt 346 after being adjusted to suitable angle.
It, can be by clamp assemblies 412 by under dismounting on isolating valve 411 when the rotary type vacuum sealing system work of the present embodiment
Come, then test tube 5 is sealingly fastened on clamp assemblies 412, is then charged into sample, and group will be clamped by sealing clamp 413
Part 412 is tightly connected with isolating valve 411, is selected to open main valve 272 or auxiliary valve 274 according to the particle of sample, unlatching is taken out true
It can be evacuated to test tube 5 close to vacuum shape for empty mechanism 22, can specifically be read and be judged according to vacuum inspective meter 25, set when being evacuated to
After vacuum degree, main valve 272 and auxiliary valve 274 are closed, adjust three-dimensional regulating valve 26 and is filled with protective gas into test tube 5, and
According to the amount of pouring of the Reading determination protective gas of vacuum inspective meter 25, closing control valve 44 and isolating valve 411, pass through successively
Annular sealing-in device carries out heating encapsulation to test tube 5, opening controlling valve 44 and isolating valve 411 and adjusting three-dimensional tune after the completion of encapsulation
It saves valve 26 and carries out pressure release, test tube 5 is disassembled.Wherein, when carrying out multiple encapsulation of test tubes 5, isolating valve 411 can be passed through
The encapsulation respectively of multiple test tubes 5 is realized with the effect of control valve 44.
Specific embodiment of the present utility model described above does not constitute the restriction to scope of protection of the utility model.
The various other corresponding changes and deformation that any technical concept according to the present utility model is made, should be included in this practicality
In novel scope of the claims.
Claims (10)
1. a kind of rotating seal device for vacuum sealing system, which is characterized in that including:
Supporting rack a comprising support base, one are set to the support plate above the support base and connect the support bottom
At least two supporting rods of seat and support plate;
Air-control device comprising a main pipeline, vacuum device and inflation mechanism, the vacuum device and inflation mechanism with
The main pipeline connection;
At least one sealing device, at least one sealing device are set gradually along the support plate length direction, each described close
Seal apparatus includes sealing mechanism, rotating mechanism, driving mechanism and control valve;The rotating mechanism includes hollow shaft, axle sleeve, drive
Driving wheel and magnetic fluid seal, the hollow shaft lower end pass through support plate and connect with the sealing mechanism, upper end coaxially extends
It is rotatably connected in the axle sleeve and with the axle sleeve, the axle sleeve upper end is connected to by control valve with main pipeline, the drive
Driving wheel is sheathed on hollow shaft opposing seal mechanism one end and is connect with the driving mechanism, the magnetic fluid seal sealing
It is connected to the hollow shaft outer wall and sleeve lining.
2. rotating seal device according to claim 1, which is characterized in that the hollow shaft include from the bottom to top outer diameter by
Tapered the first small rank portion, second-order portion and third rank portion, third rank portion are built in the axle sleeve, and the driving wheel is arranged
In the second-order portion;The rotating mechanism further includes at least two bearings, and the inner ring of each bearing is sheathed on described the
Three rank portions, outer ring are connected to the sleeve lining.
3. rotating seal device according to claim 2, which is characterized in that the rotating mechanism further includes a snap ring, institute
It states the first rank portion peripheral surface and is formed with an annular slot, the snap ring part cooperation is fastened in the annular slot;The axis
Set extends radially inwardly to form a defining flange close to the upper end, one of them described bearing upper surface is connected to the limit convex
Edge and snap ring, bearing lower face described in other in which are connected to the upper surface in the second-order portion.
4. rotating seal device according to claim 3, which is characterized in that the sealing mechanism include an isolating valve and with
The clamp assemblies that isolating valve lower end is detachably connected, the clamp assemblies include a connector, clamp nut sleeve, compression ring and
O-ring, clamp nut sleeve upper end extend radially inwardly that form a compression convex with the connector screw-thread fit, lower end
Edge, the connector lower face are formed with an inner chamfer, and described compression ring one end abuts the press flange, the other end is connected to
The O-ring simultaneously makes the O-ring be pressed in the fillet surface of the inner chamfer.
5. rotating seal device according to claim 4, which is characterized in that the compression ring include compress ring body and by
Ring body lower end is compressed to extend radially outwardly the coaxial flange to be formed, the outer diameter of the coaxial flange and the clamp nut sleeve
The identical setting of internal diameter;The connector upper end is provided with sealed interface on one, and the isolating valve lower end, which is provided with, to be sealed
Interface, the sealing mechanism further include one for driving the upper sealed interface to push against in the sealing clamp of lower sealed interface.
6. rotating seal device according to claim 5, which is characterized in that the upper sealed interface has an outer diameter under
Supreme gradually increased upper compressed part, the lower sealed interface have an outer diameter gradual increased lower compressed part from top to bottom;Institute
Sealing clamp is stated to include left clip, one end and the hinged right clip of the left clip, be articulated with the spiral shell of the right clip free end
Bar and matches to merge with the screw flight and can drive the close wing nut of left clip and right clip free end;Wherein, described
Left clip and right clip are arc-shaped, and its opposite side is respectively arranged with left pressing groove and right pressing groove, the left pressing groove and
The two side of right pressing groove is connected to the peripheral surface of the upper compressed part and lower compressed part respectively.
7. rotating seal device according to claim 6, which is characterized in that the left pressing groove and right pressing groove are in etc.
Waist is trapezoidal, and its side wall is matched with the peripheral surface of upper compressed part and lower compressed part respectively.
8. rotating seal device according to claim 1, which is characterized in that the air-control device further includes and the supervisor
The four-way valve and a vacuum inspective meter for detecting vacuum degree in the main pipeline of road one end connection;The evacuator
Structure, inflation mechanism and vacuum inspective meter are connect with three interfaces of the four-way valve respectively.
9. rotating seal device according to claim 8, which is characterized in that the air-control device further includes one set on described
Three-dimensional regulating valve between inflation mechanism and the four-way valve, inflatable interface and the inflation mechanism of the three-dimensional regulating valve connect
It connects;The air-control device further includes a diversion mechanism being set between the vacuum device and the four-way valve comprising
One main vacuum-pumping tube, the main valve in the middle part of the main vacuum-pumping tube, both ends are connected to the main vacuum-pumping tube both ends respectively
Auxiliary vacuum-pumping tube and the auxiliary valve in the middle part of the auxiliary vacuum-pumping tube;Wherein, the internal diameter of the main vacuum-pumping tube is more than auxiliary
The internal diameter of vacuum-pumping tube.
10. rotating seal device according to claim 9, which is characterized in that support frame as described above further includes being set to the branch
At least one angle adjustment mechanism between fagging and supporting rod comprising lower jaw, upper hinge and hold-down bolt, the lower conjunction
Page middle part upwardly extends to form a support portion, and the upper hinge one side is formed with a support slot for housing the support portion, institute
State hold-down bolt one end pass through across the support slot and with the support portion screw-thread fit, and the support slot slot bottom is made to compress
In the support portion;Wherein, the width of the support slot is more than the width of the support portion.
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CN201721674894.8U CN207759383U (en) | 2017-12-01 | 2017-12-01 | A kind of rotating seal device for vacuum sealing system |
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CN201721674894.8U CN207759383U (en) | 2017-12-01 | 2017-12-01 | A kind of rotating seal device for vacuum sealing system |
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