CN208776778U - A kind of scale-free heating equipment vacuum chamber sealing door device - Google Patents
A kind of scale-free heating equipment vacuum chamber sealing door device Download PDFInfo
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- CN208776778U CN208776778U CN201821490048.5U CN201821490048U CN208776778U CN 208776778 U CN208776778 U CN 208776778U CN 201821490048 U CN201821490048 U CN 201821490048U CN 208776778 U CN208776778 U CN 208776778U
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- 238000007789 sealing Methods 0.000 title claims abstract description 69
- 238000010438 heat treatment Methods 0.000 title claims abstract description 27
- 239000000758 substrate Substances 0.000 claims abstract description 58
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000012423 maintenance Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 239000000498 cooling water Substances 0.000 claims description 14
- 230000008439 repair process Effects 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 9
- 238000009434 installation Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
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Abstract
The utility model provides a kind of scale-free heating equipment vacuum chamber sealing door device, including sealing door body, lifting device and conveying track, conveying track includes two parallel substrates, base plate bottom passes through transmission axis connection, guide rail is equipped on the inside of substrate, lifting device includes upper promotion sprocket wheel, lower promotion sprocket wheel and chain, upper promotion sprocket wheel is placed in substrate top, lower promotion sprocket wheel is placed in transmission shaft outer surface, chain respectively with upper promotion sprocket wheel and lower promotion sprocket engagement, sealing door body is mounted in door frame, door frame both ends are separately connected chain both ends, door frame two sides are equipped with directive wheel, directive wheel and guide rail cooperate, base plate bottom is equipped with driving mechanism, driving mechanism connects transmission shaft.The utility model, which has the beneficial effect that, is equipped with seal channel in sealing door body, facilitates fixing seals, and the present apparatus is equipped with maintenance door, it can be achieved that sealing ring is replaced in peripheral operation in equipment work, improves production efficiency, saves cost of labor.
Description
Technical field
The utility model belongs to scale-free heating equipment technical field, more particularly, to a kind of scale-free heating equipment with very
Empty room sealing door device.
Background technique
With industrial upgrading, more and more metal materials promote product quality by the high heat treatment of added value, into
And seize high-end product market.At the same time, the various atmosphere that can promote product quality during heat treatment, which are also applied, gets over
Come more.
In metal heating processing technology, workpiece heats in non-oxidizing atmosphere, is the key that improve heat treatment part quality.It is right
In large-scale scale-free heating equipment, to prevent workpiece from aoxidizing, heating equipment is usually filled with protective atmosphere, to adapt to complex product
Technique requirement, heating equipment both ends are equipped with vacuum chamber, and vacuum chamber can effectively completely cut off the protective gas in equipment with extraneous gas,
Vacuum chamber is equipped with sealing door device, and sealing door device can prevent outside air from entering in equipment or making in equipment atmosphere to leaking
Leakage.
Existing scale-free heating equipment has vacuum chamber mostly, is equipped with sealing door device mostly at vacuum chamber.It is existing
Sealing door device is mostly incomplete, and there are shortcomings: such as sealing door-plat mostly uses class top dome shape to design, and is not easy to process
Manufacture；Promotion axis cantilever design on hermatic door, stability is low, influences the service life of sealing door device；Hermatic door cooling water
Channel is steel plate processing welding, and manufacture processing capacity is big, and weight is excessive；Sealing ring is mounted on vacuum chamber doorframe more, palpus when replacement
Equipment stops heating, can just enter operation, sealing ring not easy to overhaul in equipment after replacing atmosphere；Hermatic door bottom limits
Planar friction is unfavorable for hermatic door lower part and slides with guiding；Lifting chain is directly connected to lift frame, leads to chain stress not
?.
Utility model content
Problem to be solved in the utility model is to provide a kind of vacuum chamber sealing door device；Especially sealing ring, which is mounted on, mentions
Rise hermatic door on, and on lifting steel structural installation and repairing door, it can be achieved that equipment work in peripheral operation replacement sealing ring, production
High-efficient scale-free heating equipment vacuum chamber sealing door device.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of scale-free heating equipment use is true
Empty room sealing door device, including sealing door body, lifting device and conveying track, the conveying track include substrate, the base
Plate includes first substrate and the second substrate, and the first substrate is parallel with the second substrate, the first substrate top and institute
It states and is connected at the top of the second substrate by fixation steel plate, the first substrate bottom and the second substrate bottom are connected by transmission shaft
It connects, maintenance door is equipped between the first substrate and the second substrate, the first substrate and the second substrate inside are
Equipped with guide rail, the lifting device includes upper promotion sprocket wheel, lower promotion sprocket wheel and chain, and the upper promotion sprocket wheel is placed in the base
At the top of plate, lower the promotions sprocket wheel is placed in the transmission shaft outer surface, the chain be placed in the upper promotion sprocket outer surface with
The lower promotion sprocket outer surface, the chain are described close respectively with the upper promotion sprocket wheel and the lower promotion sprocket engagement
Closure door ontology is mounted in door frame, described chain one end of connection at the top of the door frame, described in the door frame bottom connection
The chain other end, the lifting device include two groups, and lifting device described in two groups is separately connected the door frame both ends, the door
Frame two sides are equipped with directive wheel, and the directive wheel and the guide rail cooperate, and the second substrate bottom is equipped with driving mechanism, institute
It states driving mechanism and transmission shaft is connected by transmission device.
Further, be equipped with groove among the fixation steel plate, the groove both sides form boss, the first substrate with
The boss that the fixation steel plate is formed is first boss, the described second boss formed substantially with the fixation steel plate
For second boss, the upper promotion sprocket wheel is placed at the boss, and the upper promotion sprocket wheel, which is placed on, to be promoted outside axis, the promotion
Axis both ends are separately connected fixation steel plate and substrate.
Further, the transmission device includes that motor sprocket, promotion head sprocket and bearing assembly, the driving mechanism are
Decelerating motor is equipped with the motor sprocket on the decelerating motor, and the motor sprocket is engaged with the promotion head sprocket, described
It promotes head sprocket and is placed in the transmission shaft end, the promotion head sprocket connects the transmission shaft by the bearing assembly.
Further, the sealing door body is single side arc, and the sealing door body includes panel, arc plate and gusset,
The arc plate is placed in the panel inner surface, the gusset be it is a plurality of, the gusset is placed between the panel and the arc plate.
Further, the panel outer surface is equipped with seal channel, is equipped with sealing element in the seal channel.
Further, the door frame connects the chain by chain adjuster.
Further, the chain adjuster includes upper connector and lower connector, and the upper connector is equipped with through-hole,
The lower connector includes left connector, open slot and right connector, and the open slot is placed in the left connector and the right side
Among connector, the left connector is equipped with the first chain hanging groove in the open slot side, and the right connector is opened described
Mouth slot side is equipped with the second chain hanging groove, and the left connector is symmetrically divided centered on the open slot with the right connector
Cloth, the first chain hanging groove and the second chain hanging groove are symmetrical centered on the open slot.
Further, the door frame bottom is equipped with limiting device.
Further, the first substrate bottom sides are equipped with indicating mechanism.
Further, the maintenance door lower part is equipped with cooling-water duct, and the cooling-water duct is rectangular steel pipe.
The utility model has the advantages and positive effects of:
1, the utility model structure is simple, easy to operate, by being single side arc by hermatic door body design, not only guarantees
Working strength, and facilitate processing, production efficiency is improved, by being equipped with seal channel in sealing door body, facilitates fixation
Sealing element, sealing element are mounted in sealing door body, and the present apparatus is equipped with maintenance door, it can be achieved that peripheral operation in equipment work
Sealing ring is replaced, facilitates sealing element to replace and overhaul, reduces the repair time, improve production efficiency, save cost of labor.
2, the utility model connects lifting device by fixation steel plate, can effectively fix and promote axis, solve promotion
Axis cantilever design, upper promotion axis is easy for installation, and lifting system is more stable, and the service life can greatly promote, and has saved production cost.
3, the cooling-water duct of the utility model is welded using rectangle stainless steel tube, processes weldering instead of conventional steel plate
It connects, steel plate processes the cooling-water duct manufacturing process letter that welding manufacture processing capacity is big, and weight is excessive, and rectangle stainless steel tube welds
It is single, facilitate production, greatly reduced using steel, convenient and efficient, use scope is wide, and industrial requirement is big.
4, the utility model bottom is equipped with limiting device, improves the planar friction of conventional hermetic door body bottom, plane
Friction is unfavorable for the problems such as hermatic door lower part is slided with guiding, and hermatic door bottom is equipped with needle bearing and bottom adjustable limiting group
It closes, Integral synchronous slides to vacuum chamber in seal process.
5, door frame is connect by the utility model by chain adjuster with chain, and lifting chain, which increases, adjusts component, just
After being stretched with rear chain, two chain stress equalizations are adjusted, the service life of chain is increased.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model embodiment
Fig. 2 is the overall structure sectional view of the utility model embodiment
Fig. 3 is the chain adjuster structure chart of the utility model embodiment
Fig. 4 is the sealing door body sectional view of the utility model embodiment
Fig. 5 is the sealing element installation diagram of the utility model embodiment
In figure:
1, upper promotion sprocket wheel 2, promotion axis 3, fixation steel plate
4, guide rail 5, chain adjuster 6, door frame
7, directive wheel 8, decelerating motor 9, motor sprocket
10, head sprocket 11, bearing assembly 12, lower promotion sprocket wheel are promoted
13, transmission shaft 14, roll wheel assembly 15, limited block
16, indicating mechanism 17, maintenance door 18, sealing door body
19, seal channel 20, sealing element 21, cooling-water duct
22, chain 23, panel 24, arc plate
25, gusset 26, vacuum chamber steel construction 27, first substrate
28, boss 29, groove 30, the second substrate
31, upper connector 32, through-hole 33, the first chain hanging groove
34, left connector 35, open slot 36, right connector
37, the second chain hanging groove
Specific embodiment
The utility model embodiment is described further with reference to the accompanying drawing:
As shown in Figs. 1-2, a kind of scale-free heating equipment vacuum chamber sealing door device, including seal door body 18, mention
Rise device and conveying track.Conveying track includes substrate, and substrate includes first substrate 27 and the second substrate 30, first substrate 27
It is parallel with the second substrate 30.27 top of first substrate is connect at the top of the second substrate 30 by fixation steel plate 3, in fixation steel plate 3
Between be equipped with groove 29.29 both sides of groove form boss 28.27 bottom of first substrate and 30 bottom of the second substrate pass through transmission shaft 13
Connection is equipped with maintenance door 17, is equipped on the inside of first substrate 27 and the second substrate 30 between first substrate 27 and the second substrate 30
Guide rail 4.
Lifting device includes upper promotion sprocket wheel 1, lower promotion sprocket wheel 12 and chain 22.Upper promotion sprocket wheel 1 is placed in boss 28
Place, upper promotion sprocket wheel 1, which is placed on, to be promoted outside axis 2, is promoted 2 both ends of axis and is separately connected fixation steel plate 3 and substrate.Lower promotion sprocket wheel 12
It is placed in 13 outer surface of transmission shaft, chain 22, which is placed in, promotes 1 outer surface of sprocket wheel and lower 12 outer surface of promotion sprocket wheel, and chain 22 is distinguished
It is engaged with upper promotion sprocket wheel 1 and lower promotion sprocket wheel 12.
Sealing door body 18 is mounted in door frame 6, and 22 one end of chain, the connection of 6 bottom of door frame are connected at the top of door frame 6
22 other end of chain.6 bottom of door frame is equipped with limiting device, and limiting device is that limitation 18 body of hermatic door sheet further declines, and prevents
Only seal the device of 18 bottom abrasion of door body.The limiting device of the utility model embodiment includes being placed in sealing 18 bottom of door body
The roll wheel assembly 14 in portion and the limited block 15 for being placed in 6 bottom of door frame.Lifting device includes two groups, and two groups of lifting devices connect respectively
6 both ends of door frame are connect, 6 two sides of door frame are equipped with directive wheel 7, and directive wheel 7 and guide rail 4 cooperate, 27 bottom sides of first substrate
Equipped with indicating mechanism 16.30 bottom of the second substrate is equipped with driving mechanism, and driving mechanism connects transmission shaft 13 by transmission device.
Transmission device includes motor sprocket 9, promotes head sprocket 10 and bearing assembly 11.Driving mechanism is decelerating motor 8, is subtracted
Motor sprocket 9 is housed, motor sprocket 9 is engaged with head sprocket 10 is promoted, and is promoted head sprocket 10 and is placed in 13 end of transmission shaft on speed motor 8
Head promotes head sprocket 10 by bearing assembly 11 and connects transmission shaft 13.
Door frame 6 connects chain 22 by chain adjuster 5.As shown in figure 3, chain adjuster 5 includes upper connector 31
With lower connector, upper connector is equipped with through-hole 32, and lower connector includes left connector 34, open slot 35 and right connector 36.
Open slot 35 is placed among left connector 34 and right connector 36, and left connector 34 is equipped with the first chain in 35 side of open slot
Hanging groove 33, right connector 36 are equipped with the second chain hanging groove 37 in 35 side of open slot.Left connector 34 is with right connector 36 to open
Symmetrical centered on mouth slot 35, the first chain hanging groove 33 and the second chain hanging groove 37 are symmetrical centered on open slot 35.
As shown in figure 4, sealing door body 18 is single side arc, sealing door body 18 includes panel 23, arc plate 24 and gusset
25.Arc plate 24 is placed in 23 inner surface of panel, gusset 25 be it is a plurality of, gusset 25 is placed between panel 23 and arc plate 24.
As shown in figure 5,23 outer surface of panel is equipped with seal channel 19, sealing element 20 is equipped in seal channel 19.Maintenance door
17 lower parts are equipped with cooling-water duct 21, and cooling-water duct 21 is rectangular steel pipe.
The working principle of the utility model embodiment is:
Before material to be heated enters vacuum chamber by external roller tables, sealing door body 18 is opened.Seal door body 18
Opening procedure is substantially as follows, starts decelerating motor 8, and decelerating motor 8 drives motor sprocket 9 to rotate, motor sprocket 9 and promotion main chain
10 engagement of wheel, promotes head sprocket 10 and drives transmission shaft 13 to rotate by bearing assembly 11, and transmission shaft 13 drives and promotes chain under two groups
12 rotation of wheel, lower promotion sprocket wheel 12 are driven by the chain 22 of engagement and are rotated with the upper promotion sprocket wheel 1 of group.With the upper promotion chain of group
Wheel 1, lower promotion sprocket wheel 12, chain 22 and door frame 6 form loop.In 22 rotation process of chain, door frame 6 is led
It is moved in guide rail 4 to wheel 7, moves up and seal door body 18 under the action of self-weight along door frame 6 by directive wheel 7
Oblique guide groove is moved downward far from cooling-water duct 21 and vacuum chamber steel construction 26, forms space.
When the space formed between door frame 6 and sealing door body 18 can pass through material, fire door position indicating device
16 grating issues signal, can stop the rotation of decelerating motor 8.
After the completion of entering material process, sealing door body 18 is closed, starts decelerating motor 8, rotates backward it.Decelerating motor
8 drive motor sprockets 9 rotate backward, and motor sprocket 9 drives transmission shaft 13 to rotate backward, and transmission shaft 13 drives lower promotion sprocket wheel 12
It rotates backward, door frame 6 is moved down in guide rail 4 by directive wheel 7, until the roll wheel assembly 14 of sealing 18 bottom of door body
Touch limited block 15.Decelerating motor 8 remains in operation, and door body 18 is sealed under the action of 6 oblique guide groove of door frame, by close
The roll wheel assembly 14 of closure door 18 bottom of ontology is made very close to cooling-water duct 21 and vacuum chamber structure by the deformation of sealing element 20
26 stroke confined space of empty room steel construction.When reaching appropriate location, the grating triggering of fire door position indicating device 16, decelerating motor
8 stop operating and brake.
Decelerating motor 8 during rotation, can observe the row of fire door by the pointer of fire door position indicating device 16
Journey position, this structure are often used in the prior art.
When equipment runs to maintenance and warranty period, it can guarantee the stress equalization of two sides chain 22 by chain adjuster 5, simultaneously
Sealing door body 18 can be promoted to 17 position of maintenance door, open maintenance door 17 to sealing element 20 carry out necessary maintenance or
Replacement.
The utility model has the advantages and positive effects of:
1, the utility model structure is simple, easy to operate, by being single side arc by hermatic door body design, not only guarantees
Working strength, and facilitate processing, production efficiency is improved, by being equipped with seal channel in sealing door body, facilitates fixation
Sealing element, sealing element are mounted in sealing door body, and the present apparatus is equipped with maintenance door, it can be achieved that peripheral operation in equipment work
Sealing ring is replaced, facilitates sealing element to replace and overhaul, reduces the repair time, improve production efficiency, save cost of labor.
2, the utility model connects lifting device by fixation steel plate, can effectively fix and promote axis, solve promotion
Axis cantilever design, upper promotion axis is easy for installation, and lifting system is more stable, and the service life can greatly promote, and has saved production cost.
3, the cooling-water duct of the utility model is welded using rectangle stainless steel tube, processes weldering instead of conventional steel plate
It connects, steel plate processes the cooling-water duct manufacturing process letter that welding manufacture processing capacity is big, and weight is excessive, and rectangle stainless steel tube welds
It is single, facilitate production, greatly reduced using steel, convenient and efficient, use scope is wide, and industrial requirement is big.
4, the utility model bottom is equipped with limiting device, improves the planar friction of conventional hermetic door body bottom, plane
Friction is unfavorable for the problems such as hermatic door lower part is slided with guiding, and hermatic door bottom is equipped with needle bearing and bottom adjustable limiting group
It closes, Integral synchronous slides to vacuum chamber in seal process.
5, door frame is connect by the utility model by chain adjuster with chain, and lifting chain, which increases, adjusts component, just
After being stretched with rear chain, two chain stress equalizations are adjusted, the service life of chain is increased.
One embodiment of the utility model is described in detail above, but the content is only the utility model
Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model
All the changes and improvements etc., should still belong within the patent covering scope of the utility model.
Claims (10)
1. a kind of scale-free heating equipment vacuum chamber sealing door device, including sealing door body, lifting device and conveying track,
It is characterized by: the conveying track includes substrate, the substrate includes first substrate and the second substrate, the first substrate with
The second substrate is parallel, is connect at the top of the second substrate by fixation steel plate at the top of the first substrate, described first
Base plate bottom and the second substrate bottom are equipped with inspection by transmission axis connection between the first substrate and the second substrate
Repair door, be equipped with guide rail on the inside of the first substrate and the second substrate, the lifting device include upper promotion sprocket wheel, under mention
It rises sprocket wheel and chain, the upper promotion sprocket wheel is placed in the substrate top, the lower promotion sprocket wheel is placed in the transmission shaft appearance
Face, the chain are placed in the upper promotion sprocket outer surface and the lower promotion sprocket outer surface, the chain respectively with it is described
Upper promotion sprocket wheel and the lower promotion sprocket engagement, the sealing door body are mounted in door frame, are connected at the top of the door frame
Described chain one end is connect, the door frame bottom connects the chain other end, and the lifting device includes two groups, described in two groups
Lifting device is separately connected the door frame both ends, and the door frame two sides are equipped with directive wheel, and the directive wheel is led with described
Rail cooperation, the second substrate bottom are equipped with driving mechanism, and the driving mechanism connects transmission shaft by transmission device.
2. a kind of scale-free heating equipment vacuum chamber sealing door device according to claim 1, it is characterised in that: described
Groove is equipped among fixation steel plate, the groove both sides form boss, the institute that the first substrate and the fixation steel plate are formed
Stating boss is first boss, and the boss that the second substrate and the fixation steel plate are formed is second boss, described above to mention
It rises sprocket wheel to be placed at the boss, the upper promotion sprocket wheel, which is placed on, to be promoted outside axis, and the promotion axis both ends are separately connected fixation
Steel plate and substrate.
3. a kind of scale-free heating equipment vacuum chamber sealing door device according to claim 1 or 2, it is characterised in that:
The transmission device includes motor sprocket, promotes head sprocket and bearing assembly, and the driving mechanism is decelerating motor, the deceleration
The motor sprocket is housed, the motor sprocket is engaged with the promotion head sprocket, and the promotion head sprocket is placed in institute on motor
Transmission shaft end is stated, the promotion head sprocket connects the transmission shaft by the bearing assembly.
4. a kind of scale-free heating equipment vacuum chamber sealing door device according to claim 1 or 2, it is characterised in that:
The sealing door body is single side arc, and the sealing door body includes panel, arc plate and gusset, and the arc plate is placed in the face
Plate inner surface, the gusset be it is a plurality of, the gusset is placed between the panel and the arc plate.
5. a kind of scale-free heating equipment vacuum chamber sealing door device according to claim 4, it is characterised in that: described
Panel outer surface is equipped with seal channel, is equipped with sealing element in the seal channel.
6. a kind of scale-free heating equipment vacuum chamber sealing door device according to claim 1 or 2, it is characterised in that:
The door frame connects the chain by chain adjuster.
7. a kind of scale-free heating equipment vacuum chamber sealing door device according to claim 6, it is characterised in that: described
Chain adjuster includes upper connector and lower connector, and the upper connector is equipped with through-hole, and the lower connector includes left company
Junctor, open slot and right connector, the open slot are placed among the left connector and the right connector, the left connection
Body is equipped with the first chain hanging groove in the open slot side, and the right connector is hung in the open slot side equipped with the second chain
Slot, the left connector and the right connector are symmetrical centered on the open slot, the first chain hanging groove and institute
It is symmetrical centered on the open slot to state the second chain hanging groove.
8. a kind of scale-free heating equipment vacuum chamber sealing door device according to claim 1 or 2, it is characterised in that:
The door frame bottom is equipped with limiting device.
9. a kind of scale-free heating equipment vacuum chamber sealing door device according to claim 1 or 2, it is characterised in that:
The first substrate bottom sides are equipped with indicating mechanism.
10. a kind of scale-free heating equipment vacuum chamber sealing door device according to claim 1 or 2, it is characterised in that:
The maintenance door lower part is equipped with cooling-water duct, and the cooling-water duct is rectangular steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821490048.5U CN208776778U (en) | 2018-09-12 | 2018-09-12 | A kind of scale-free heating equipment vacuum chamber sealing door device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821490048.5U CN208776778U (en) | 2018-09-12 | 2018-09-12 | A kind of scale-free heating equipment vacuum chamber sealing door device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208776778U true CN208776778U (en) | 2019-04-23 |
Family
ID=66160758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821490048.5U Active CN208776778U (en) | 2018-09-12 | 2018-09-12 | A kind of scale-free heating equipment vacuum chamber sealing door device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208776778U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374472A (en) * | 2019-07-04 | 2019-10-25 | 武汉智能装备工业技术研究院有限公司 | A kind of Full-automatic telescopic hermatic door |
-
2018
- 2018-09-12 CN CN201821490048.5U patent/CN208776778U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374472A (en) * | 2019-07-04 | 2019-10-25 | 武汉智能装备工业技术研究院有限公司 | A kind of Full-automatic telescopic hermatic door |
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