CN106593177B - Large size vacuum vessel gate operating mechanism - Google Patents
Large size vacuum vessel gate operating mechanism Download PDFInfo
- Publication number
- CN106593177B CN106593177B CN201610537279.6A CN201610537279A CN106593177B CN 106593177 B CN106593177 B CN 106593177B CN 201610537279 A CN201610537279 A CN 201610537279A CN 106593177 B CN106593177 B CN 106593177B
- Authority
- CN
- China
- Prior art keywords
- gate
- walking
- vacuum tank
- screw rod
- flange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 42
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 230000005484 gravity Effects 0.000 claims abstract description 22
- 239000000725 suspension Substances 0.000 claims abstract description 8
- 238000013519 translation Methods 0.000 claims description 7
- 238000003032 molecular docking Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/632—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B51/00—Operating or controlling locks or other fastening devices by other non-mechanical means
- E05B51/02—Operating or controlling locks or other fastening devices by other non-mechanical means by pneumatic or hydraulic means
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
- E05C19/10—Hook fastenings; Fastenings in which a link engages a fixed hook-like member
- E05C19/12—Hook fastenings; Fastenings in which a link engages a fixed hook-like member pivotally mounted around an axis
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/06—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
- E05D15/0621—Details, e.g. suspension or supporting guides
- E05D15/0626—Details, e.g. suspension or supporting guides for wings suspended at the top
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/06—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
- E05D15/0621—Details, e.g. suspension or supporting guides
- E05D15/0626—Details, e.g. suspension or supporting guides for wings suspended at the top
- E05D15/063—Details, e.g. suspension or supporting guides for wings suspended at the top on wheels with fixed axis
- E05D15/0634—Details, e.g. suspension or supporting guides for wings suspended at the top on wheels with fixed axis with height adjustment
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2999/00—Subject-matter not otherwise provided for in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention discloses a kind of large size vacuum vessel gate operating mechanisms, including track of walking, two sets of driving walking suspension arrangements and gate clamp system, wherein, two sets of driving walking suspension arrangements all respectively include rolling driving wheel of the walking in track of walking, clutch, motor, height adjustment mechanism and gravity center adjusting mechanism, motor passes through clutch, driving driving wheel is rolled along walking track, so as to drive vacuum tank gate along walking track travel, height adjustment mechanism realizes that there is the swing of certain angle at gate along vertical direction, the height at hanging gate is adjusted by height adjusting screw rod, realize that gate position is adjustable up and down, overlap gate hanging position and gate center of gravity, realize that gate hanging rear flange sealing surface is vertical with horizontal plane.This large size vacuum vessel gate operating mechanism in the present invention, it is small to have the characteristics that compact in design occupies hall space, and it is simple in structure, easy to adjust, operate steadily, reliability it is high, the high performance requirements of the big door switch of Large Spacecraft space simulator can be met.
Description
Technical field
The invention belongs to Large Spacecraft space environment simulation equipment, that is, Vacuum Chamber Design manufacturing field, specifically,
The present invention relates to a kind of gate operating mechanisms opened and closed for the translation of large size vacuum vessel gate.
Background technology
In Large Spacecraft space environment simulation equipment, in order to meet spacecraft disengaging space environment simulation equipment vacuum
The needs of container, all there are one large-scale gates for meeting usually on vacuum tank.The gate of these usual large size vacuum vessels, all
There is the characteristics of size is big, weight is big；Such as about 10 meters of round gate of diameter, about 3 meters of thickness, weight can reach 30 tons；Highly,
The rectangular gate that about 5 meters of width dimensions, thickness reach 1 meter, and weight can also reach 20 tons.Meanwhile gate also need to frequently open,
It closes, the convenience of gate switching manipulation, safety, running stability are most important；Vacuum tank gate sealing surface need with
Sealing ring on vacuum tank sealing flange is docked and is compressed, and ensures vacuum-packed less leakage rate requirement, reliable right in order to ensure
It connects, gluing, sealing, it is desirable that big door switch mechanism needs, which facilitate, adjusts gate sealing surface position.
At present, general large size vacuum vessel gate opening ways have rotary and two kinds of parallel-moving type.Rotary gate is opened,
Gate is needed to rotate around the shaft, occupies larger space；Much room will also be occupied by being opened perpendicular to flange sealing surface translation；Using
Flange sealing surface direction translation door-opening mode is parallel to, during using ground handling trolley mode, running trolley needs are built on ground
If dedicated trolley track, floor space are also bigger.
Therefore, in order to meet the high request of the big door switch of Large Spacecraft space environment simulation equipment, it is necessary to develop one
Kind is simple in structure, easy to adjust, operate steadily reliable large size vacuum vessel gate operating mechanism.
Invention content
The purpose of the present invention is to provide a kind of gate fortune opened and closed suitable for the translation of large size vacuum vessel gate
The shortcomings that row mechanism, container gate of the invention is overcome in above-mentioned gate on-off mode, have the characteristics that occupy little space, and
It is simple in structure, easy to adjust, reliability is high, the high request at Large Spacecraft space simulator gate can be met completely.
The large size vacuum vessel gate operating mechanism of the present invention is mainly used for the translation of large size vacuum vessel gate and opens and close
It closes, including walking track, two sets of driving walking suspension arrangements and gate clamp system, wherein, two sets of driving walking suspension arrangements
It all respectively includes rolling driving wheel, clutch, motor, height adjustment mechanism and center of gravity adjusting machine of the walking in track of walking
Structure, walking track are affixed to the building crossbeam for installing vacuum tank gate by anchor point connector, and motor leads to
Clutch is crossed, driving wheel is rolled along walking track, so as to drive vacuum tank gate along walking track travel, traffic direction
Parallel with vacuum tank gate sealing surface, height adjustment mechanism includes hanging bar and height adjusting screw rod, and hanging bar upper end is servo-actuated
It is connected on driving wheel, bottom and height adjusting screw rod realize that gate has centainly along vertical direction by hinge links
The swing of angle adjusts the height at hanging gate by height adjusting screw rod, realizes that gate position is adjustable up and down；Highly adjust
Screw rod is connect by link block with vacuum tank gate, and the center of gravity adjusting screw rod for passing through link block adjusts gate hanging position,
Gate hanging position and gate center of gravity are overlapped, realizes that gate hanging rear flange sealing surface is vertical with horizontal plane.
Wherein, by adjusting height adjusting screw rod, center of gravity adjusting screw rod make the gate of hanging close preferably with vacuum tank
Seal flange docking.
Wherein, which is adjusted the upper-lower height at gate；And the situation of change of the actual center gravity according to gate, it adjusts at any time
The position of whole sling point, it is ensured that gate hanging rear flange sealing surface is vertical with horizontal plane.
Wherein, after vacuum tank gate is docked with vacuum tank flange face, by pneumatic clamping mechanism come realize gate with
The clamping of vacuum tank flange sealing surface.
Further, which pushes and tenses hook by cylinder piston and run in bearing sliding slot, makes appearance
Device gate flange is detached and is compressed with box flange, ensures the fitting in gate flange face and box flange face, so as to fulfill vacuum
Sealed clamping requirement.
Further, pneumatic clamping mechanism adjusts the distance between gate and vessel flange sealing surface by hook, ensures
Gate flange face and the fitting in box flange face.
Wherein, walking track is connected by anchor point connector with the built-in fitting on building crossbeam, is arranged on vacuum tank
Surface makes its state with vacuum tank flange face keeping parallelism.
The large size vacuum vessel gate operating mechanism of the present invention has the characteristics of hanging height is adjustable, and center of gravity is adjustable.Highly
Adjusting can be realized by height adjusting screw rod；Center of gravity adjusting can make gate sling point position by adjusting Level tune screw rod
It puts and is overlapped with gate center of gravity, it is ensured that gate hanging rear flange sealing surface is vertical with horizontal plane；It in this way will be in a certain range
Interior realization height of V window opening, center of gravity are adjusted, and gate is made preferably to be docked with vacuum tank sealing flange, ensures sealing.
Description of the drawings
Fig. 1 a are the front view of the large size vacuum vessel gate operating mechanism of an embodiment of the present invention.
Fig. 1 b are the side view of the large size vacuum vessel gate operating mechanism of an embodiment of the present invention.
Wherein, 1, walking track；2nd, wheel；3rd, clutch；4th, motor；5th, bar is hung；6th, height adjusting screw rod；7th, center of gravity
Adjusting screw rod；8th, gate.
Fig. 2 is walk in the large size vacuum vessel gate operating mechanism of an embodiment of the present invention track and building crossbeam company
Connect schematic diagram.
Wherein, 9, building crossbeam；10th, anchor point connector.
The installation of air-actuated jaw clamping device is shown in the large size vacuum vessel gate operating mechanism of Fig. 3 an embodiment of the present invention
It is intended to.
Wherein, 11, cylinder；12nd, clamp system；13rd, it clamps and takes block；14th, vessel flange.
Specific embodiment
Embodiments of the present invention are further described below in conjunction with attached drawing, these embodiments are merely exemplary
, it is no intended to any restrictions are carried out to protection scope of the present invention.
Referring to Fig. 1, Fig. 1 is the schematic diagram of the large size vacuum vessel gate operating mechanism of an embodiment of the present invention.This hair
Bright large size vacuum vessel gate operating mechanism is mainly used for the translation of large size vacuum vessel gate and opens and closes, including walking
1, two set of driving walking suspension arrangement of track and gate clamp system, wherein, two sets of driving walking suspension arrangements all respectively include
Roll driving wheel 2, clutch 3, motor 4, height adjustment mechanism and gravity center adjusting mechanism of the walking in track 1 of walking, row
Walk track 1 be affixed to by anchor point connector 10 for install vacuum tank gate building crossbeam 9 (referring to Fig. 2,
Fig. 2 shows walking track and building crossbeam connection diagram), motor 4 drives wheel 2 along walking track 1 by clutch 3
It rolls, so as to which vacuum tank gate be driven to walk along walking track 1, traffic direction is parallel with vacuum tank gate sealing surface,
Height adjustment mechanism includes hanging bar 5 and height adjusting screw rod 6, and 5 upper end of hanging bar, which is servo-actuated, to be connected on driving wheel, bottom
With height adjusting screw rod 6 by hinge links, realize that there is the swing of certain angle at gate along vertical direction；It is adjusted by height
Screw rod 6 adjusts the height at hanging gate, realizes that gate position is adjustable up and down；Height adjusting screw rod 6 passes through link block and vacuum
Container gate connects, and the center of gravity adjusting screw rod 7 for passing through link block adjusts gate hanging position, makes gate hanging position and gate
Center of gravity overlaps, and realizes that gate hanging rear flange sealing surface is vertical with horizontal plane.By adjusting height adjusting screw rod 6, center of gravity tune
Section screw rod 7 can be such that the gate of hanging is preferably docked with vacuum tank sealing flange.
After gate is docked with vacuum tank sealing flange, gate and vacuum tank method are realized by pneumatic clamping mechanism
Orchid clamps and separation.Referring to Fig. 3, Fig. 3 shows air-actuated jaw clamping device scheme of installation, wherein, the cylinder cylinder of cylinder 11
Body is bolted to by standard component on 12 load shell of clamp system, and the cylinder piston of cylinder 11 is connected in clamp system 12
On portion's operation pull rod.Cylinder 11 and clamp system 12 assemble after global facility (cylinder 11 is standard outsourcing piece, clamp system 12
For known features), 12 load shell of clamp system is fixed on vacuum tank shell siding suitably by standard bolt
Position.During clamping, the piston of cylinder 11 pulls clamp system 12, and block is taken in the clamping that clamp system 12 is clamped and installed on flange
13, bar 5 and height adjusting screw rod 6 are hung by hinge links, can realize that gate 8 is swung and vacuum tank along vertical direction
Flange is bonded, and realizes the clamping of vessel flange 14；During separation, the piston of cylinder 11 pushes clamp system 12, and clamp system 12 revolves
Turn to discharge clamping and take block 13, hang bar 5 and height adjusting screw rod 6 by hinge links, gate 8 will be swung under the effect of gravity
The separation of vessel flange 14 is realized in separation.
There is this large size vacuum vessel gate operating mechanism in the present invention compact in design to occupy the small spy of hall space
Point, and it is simple in structure, easy to adjust, operate steadily, reliability it is high, Large Spacecraft space simulator gate can be met
The high performance requirements of switch.Meanwhile the gate operating mechanism is easy to operate, opens, it is fast to close the speed of service, it is only necessary to a few minutes
Being turned on and off for gate can be completed, the requirement for disclosure satisfy that gate is quick, frequently switching on.This large size vacuum vessel is big
Door operating mechanism is applicable not only to large size vacuum vessel gate, and the gate for having similar switching requirements to miscellaneous equipment is also suitable, should
It is wide with range.
Although the specific embodiment of the present invention is described in detail and is illustrated above, it should be noted that
Those skilled in the art can be according to the present invention spirit various equivalent changes and modification, institute are carried out to the above embodiment
The function of generation, should all be within protection scope of the present invention in the spirit covered without departing from specification and attached drawing.
Claims (6)
1. large size vacuum vessel gate operating mechanism is mainly used for the translation of large size vacuum vessel gate and opens and closes, including row
Track, two sets of driving walking suspension arrangements and gate clamp system are walked, wherein, two sets of driving walking suspension arrangements all respectively include
Driving wheel, clutch, motor, height adjustment mechanism and gravity center adjusting mechanism of the walking in track of walking are rolled, rail of walking
Road is affixed to the building crossbeam for installing vacuum tank gate by anchor point connector, motor by clutch,
Wheel is driven to be rolled along walking track, traffic direction holds with vacuum along walking track travel so as to drive vacuum tank gate
Device gate sealing surface is parallel, and height adjustment mechanism includes hanging bar and height adjusting screw rod, and hanging bar upper end, which is servo-actuated, is connected to drive
On motor car wheel, bottom and height adjusting screw rod realize that there is the pendulum of certain angle at gate along vertical direction by hinge links
It is dynamic, the height at hanging gate is adjusted by height adjusting screw rod, realizes that gate position is adjustable up and down；Height adjusting screw rod passes through
Link block is connect with vacuum tank gate, and the center of gravity adjusting screw rod for passing through link block adjusts gate hanging position, makes big gantry crane
It hangs position and gate center of gravity overlaps, realize that gate hanging rear flange sealing surface is vertical with horizontal plane, wherein, pneumatic clamping mechanism
It is pushed by cylinder piston and is tensed hook to run in bearing sliding slot, container gate flange is made to detach and compress with box flange,
Ensure the fitting in gate flange face and box flange face, asked so as to fulfill vacuum sealing clamp is critical.
2. vacuum tank gate as described in claim 1 operating mechanism, wherein, by adjusting height adjusting screw rod, center of gravity tune
Section screw rod makes the gate of hanging preferably be docked with vacuum tank sealing flange.
3. vacuum tank gate as described in claim 1 operating mechanism, wherein, which is adjusted the upper-lower height at gate；
And the position of the situation of change of the actual center gravity according to gate, at any time adjustment sling point, it is ensured that hang rear flange sealing surface in gate
It is vertical with horizontal plane.
4. vacuum tank gate as described in claim 1 operating mechanism, wherein, vacuum tank gate and vacuum tank flange face
After docking, the clamping at gate and vacuum tank flange sealing surface is realized by pneumatic clamping mechanism.
5. vacuum tank gate as claimed in claim 4 operating mechanism, wherein, pneumatic clamping mechanism adjusts gate by hook
The distance between vessel flange sealing surface ensures the fitting in gate flange face and box flange face.
6. such as claim 1-5 any one of them vacuum tanks gate operating mechanism, wherein, walking track is connected by anchor point
Part is connected with the built-in fitting on building crossbeam, is arranged on right over vacuum tank, it is made to keep flat with vacuum tank flange face
Capable state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610537279.6A CN106593177B (en) | 2016-07-08 | 2016-07-08 | Large size vacuum vessel gate operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610537279.6A CN106593177B (en) | 2016-07-08 | 2016-07-08 | Large size vacuum vessel gate operating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106593177A CN106593177A (en) | 2017-04-26 |
| CN106593177B true CN106593177B (en) | 2018-06-22 |
Family
ID=58555932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610537279.6A Expired - Fee Related CN106593177B (en) | 2016-07-08 | 2016-07-08 | Large size vacuum vessel gate operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106593177B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654154A (en) * | 2017-10-10 | 2018-02-02 | 杭州杭氧低温容器有限公司 | Make the off-loadable formula gate travelling mechanism of optical environment simulated test |
| CN113772133B (en) * | 2021-09-18 | 2022-06-07 | 北京卫星环境工程研究所 | Operating foot limiter in spacecraft cabin |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787834A (en) * | 2010-01-18 | 2010-07-28 | 淄博真空设备厂有限公司 | Opening and closing device of horizontal compartment door |
| KR20110013829A (en) * | 2009-08-03 | 2011-02-10 | 장영근 | Opening and shutting device for automatic door |
| CN202578246U (en) * | 2012-04-01 | 2012-12-05 | 常熟市虞华真空设备科技有限公司 | Pneumatic pre-tensioning mechanism for vacuum chamber door |
| CN102980784A (en) * | 2012-11-29 | 2013-03-20 | 北京卫星环境工程研究所 | Pneumatic clamp for spacecraft thermal test vacuum container |
| CN203729784U (en) * | 2014-02-26 | 2014-07-23 | 浙江广厦建设职业技术学院 | Novel running mechanism |
| CN204877176U (en) * | 2015-07-27 | 2015-12-16 | 中国联合工程公司 | Strenghthened type X ray protection gate |
-
2016
- 2016-07-08 CN CN201610537279.6A patent/CN106593177B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110013829A (en) * | 2009-08-03 | 2011-02-10 | 장영근 | Opening and shutting device for automatic door |
| CN101787834A (en) * | 2010-01-18 | 2010-07-28 | 淄博真空设备厂有限公司 | Opening and closing device of horizontal compartment door |
| CN202578246U (en) * | 2012-04-01 | 2012-12-05 | 常熟市虞华真空设备科技有限公司 | Pneumatic pre-tensioning mechanism for vacuum chamber door |
| CN102980784A (en) * | 2012-11-29 | 2013-03-20 | 北京卫星环境工程研究所 | Pneumatic clamp for spacecraft thermal test vacuum container |
| CN203729784U (en) * | 2014-02-26 | 2014-07-23 | 浙江广厦建设职业技术学院 | Novel running mechanism |
| CN204877176U (en) * | 2015-07-27 | 2015-12-16 | 中国联合工程公司 | Strenghthened type X ray protection gate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106593177A (en) | 2017-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106703264A (en) | Indoor mechanical automation mounting method for super high-rise unit curtain walls | |
| CN106593177B (en) | Large size vacuum vessel gate operating mechanism | |
| CN106517005A (en) | Automatic-balanced telescopic arm and photovoltaic plate cleaning equipment with telescopic arm | |
| CN104742787B (en) | Sprinkling wagon spraying mechanism and sprinkling wagon | |
| CN105421976B (en) | Buried turnover plate type backwater gate | |
| CN103575526B (en) | A kind of durability test apparatus of enging cabin cover hinge | |
| CN104897378B (en) | Swing fatigue experimental device | |
| CN206288006U (en) | Drawer type equipment box and levitation train | |
| CN102941629B (en) | Shutter type dust protection cover for cutting test of cutting tooth | |
| CN103753207B (en) | For the turning device of wind driven generator principal shaft | |
| CN206985545U (en) | Device for hoisting is erected in a kind of shifting of with brake mechanism | |
| CN202593523U (en) | Escape system for magnetic suspension train | |
| CN103991403B (en) | Motor vehicles environmental protection tests car | |
| CN203580959U (en) | Railway vehicle apron board | |
| CN212076204U (en) | Crane overturn-preventing device for crane installation | |
| CN206155461U (en) | Railway covers double -layer top cover for hopper car | |
| CN104401900A (en) | Cover plate hoisting device | |
| CN208439259U (en) | A kind of underground ventilating air door pneumatic automatic stop block | |
| CN205772694U (en) | A kind of door lock of elevator unlocking apparatus | |
| CN103802719B (en) | Vehicle environment protection top opening | |
| CN209493205U (en) | Automatic In-pot Car Retarder | |
| CN207328448U (en) | Air-powered automatic dumping car with pulley | |
| CN202345714U (en) | Slope ramp electro-pneumatic car stop | |
| CN205504150U (en) | But blast furnace top does not have counter weight pressure regulating with non - flip structure diffuses valve | |
| CN206569924U (en) | A kind of route-variable height beam for crane room is driven a vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180622 Termination date: 20210708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |