CN109462166A - A kind of high-voltage switch cubicle handcart switch guide rail - Google Patents
A kind of high-voltage switch cubicle handcart switch guide rail Download PDFInfo
- Publication number
- CN109462166A CN109462166A CN201811332397.9A CN201811332397A CN109462166A CN 109462166 A CN109462166 A CN 109462166A CN 201811332397 A CN201811332397 A CN 201811332397A CN 109462166 A CN109462166 A CN 109462166A
- Authority
- CN
- China
- Prior art keywords
- strut
- pull rod
- guide rail
- rail
- voltage switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/18—Switchgear having carriage withdrawable for isolation with isolation by vertical withdrawal
Abstract
The invention discloses a kind of high-voltage switch cubicle handcarts to switch guide rail, including guide rail structure, bracket institution and pull rod.Supporting structure is installed in the middle part of guide rail structure, and the bottom of supporting structure is then equipped with idler wheel, supporting structure knob end is equipped with pull rod simultaneously, worker only needs end of shaking hands by operation, guide rail structure can be lifted away from ground, after guide rail structure leaves ground, whole device only has the idler wheel and ground face contact of supporting structure bottom, the sliding friction generated when relative motion between guide rail and ground in original technology is become rolling friction by the invention, friction foot is effectively reduced, work difficulty and risk are thereby reduced.
Description
Technical field
The present invention relates to high-voltage electrical equipment correlative technology fields, and in particular to a kind of high-voltage switch cubicle handcart switch is led
Rail.
Background technique
High-tension switch cabinet is the indoor equipment that number of operations is most in the daily power transformation O&M service work of substation, and is led
It sends a telegraph the high-incidence equipment of net human casualty accident, therefore the safety of high-tension switch cabinet operation and is accurately the guarantee person, power grid, sets
The basis of standby safety.In the practical operation of power grid O&M, high-tension switch cabinet is led common issue is that wheelbarrow switch is inconvenient
Rail is heavy, difficult, needs two to three people resultant force that can slowly lift, operation is time-consuming and laborious, and guardian will also participate in it sometimes
In, the situation of unsupervised in work is caused, adds potential security risk, and some vehicle guides are grabbed without suitably lift
Position may also can injure by a crashing object in the handling process, damage operating personnel.Therefore occur in the operation of solution high-voltage switchgear trolley
Problem is in response to Guo Wang company and calls, improves the safety of power grid O&M and the effective ways of efficiency, thus it is proposed that a kind of high
Cabinet wheelbarrow switch guide rail compress switch to solve the above problems.
Summary of the invention
A kind of high-voltage switch cubicle handcart switch guide rail is provided for the above-mentioned problems of the prior art, makes operating personnel
It can stand up uprightly to push and pull, it is not necessary to which the moment bends forward waist work, and security reliability and the operating personnel of switchgear operation greatly improved
Operational comfort.
To achieve the goals above, a kind of high-voltage switch cubicle handcart switch guide rail that the present invention uses, including guide rail structure,
Bracket institution and pull rod, the guide rail structure includes two, and parallel backbone and two are in the same plane in a plane
Parallel secondary rail, described two secondary rails are located on the inside of two backbones, and the pair rail both ends are welded with crossbeam, the crossbeam both ends
It is respectively welded a backbone, is equipped with sliding rail on the outside of the pair rail.
As advanced optimizing for above scheme, the supporting structure is mounted on the outside of two secondary rails at golden section point,
By the rotation connection of shaft I at the golden section point of secondary rail side at the top of the strut II, II bottom of strut is equipped with
Idler wheel, shaft II is equipped in the middle part of the strut I, and the strut I is rotatably connected on the middle part of strut II, the branch by shaft II
Pulley is installed, the strut I is slidably matched by the pulley at top with the sliding rail on secondary rail, I bottom of strut at the top of bar I
Idler wheel is installed, is socketed with pull rod on the outside of the strut II.
As advanced optimizing for above scheme, the top of the strut II is fixedly connected with to be slidably matched with pull rod inner wall
Cylindrical body, Spring Card is installed at the top of the cylindrical body, the Spring Card includes U-typed pedestal, court at the base openings
To pull rod center, the base bottom is equipped with spring I, is equipped with baffle at the top of the spring I.
As advanced optimizing for above scheme, the pull rod includes pull rod, and the pull rod is in U-typed, the pull rod
Both ends are respectively sleeved on the strut II on the outside of two secondary rails, the spring I when the strut II protrudes into pull rod bottom inside Spring Card
Baffle release is caught in pull rod bottom pull rod is reached with strut II and is stably connected with, the pull rod bottom center is equipped with hydraulic
Device, hydraulic press internal pipeline are in inverted " t " type, and the caliber ratio of horizontal pipe and vertical pipe in the hydraulic press is 1:3, described
It is equipped with push rod in horizontal pipe both ends in hydraulic press, hydraulic stem, the liquid are equipped in the vertical deferent in the hydraulic press
Button is installed at the top of compression bar, spring II is installed between the button and pull rod.
As advanced optimizing for above scheme, described push rod one end is in the horizontal pipe in hydraulic press, the push rod
The other end contacted with baffle, be slidably matched restraining position ring block I in the middle part of the push rod.
As advanced optimizing for above scheme, the inner wall at the pull rod both ends is equipped with a circle stop collar II, the branch
The cylinder diameter being fixedly connected at the top of bar II is greater than the internal diameter of stop collar II.
A kind of high-voltage switch cubicle handcart of the invention switchs guide rail, have it is following the utility model has the advantages that
1. a kind of high-voltage switch cubicle handcart of the invention switchs guide rail, the secondary rail of setting by the rigid connection with backbone,
The active force of supporting structure can be passed to backbone, when not needing to lift backbone, backbone and secondary rail can hide supporting structure
In inside, the idler wheel of supporting structure bottom is made to fail.
2. a kind of high-voltage switch cubicle handcart of the invention switchs guide rail, the supporting structure of setting can play the role of lever,
It is that fulcrum amplifies the strength of worker with shaft II, after backbone leaves ground, the idler wheel of supporting structure bottom installation will be original
Sliding friction be converted to rolling friction, greatly reduce frictional resistance, alleviate the work load of worker, improve safety
Property.
3. a kind of high-voltage switch cubicle handcart of the invention switchs guide rail, the Spring Card of setting ensure that usually strut II is hidden
In pull rod internal economies space, when needing to pull out pull rod, Spring Card, which can withdraw baffle, no longer to be played the role of being bonded.
4. a kind of high-voltage switch cubicle handcart of the invention switchs guide rail, pull rod is stretched when the pull rod telescoping mechanism of setting makes to need
Out, pull rod retracts when not needing, and the worker that the pull rod of stretching increases strut II exerts oneself the arm of force of side, reduces the labour of worker
Intensity.
5. a kind of high-voltage switch cubicle handcart of the invention switchs guide rail, the stop collar I of setting ensure that the position of push rod, increase
The strong reliability of pull rod telescoping mechanism.
6. a kind of high-voltage switch cubicle handcart of the invention switchs guide rail, when the stop collar II of setting ensure that pull rod pulls out,
Pull rod and strut II without departing from.
Detailed description of the invention
Fig. 1 is top view of the invention；
Fig. 2 is retractable drawbar structure sectional view of the invention；
Fig. 3 is supporting structure side view of the invention.
In figure: backbone 1, secondary rail 2, crossbeam 3, idler wheel 4, strut I 5, shaft I 6, shaft II 7, strut II 8, pull rod 9, cylinder
Body 10, pedestal 11, spring I 12, spring II 13, baffle 14, hydraulic press 15, push rod 16, hydraulic stem 17, button 18, stop collar I
19, stop collar II 20, pulley 21, sliding rail 22.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, right below by attached drawing and embodiment
The present invention is further elaborated.However, it should be understood that specific embodiment described herein is only used to explain this hair
Range that is bright, being not intended to restrict the invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of high-voltage switch cubicle handcart switch guide rail, including lead
Rail structure, bracket institution and pull rod 9, guide rail structure include two in a plane parallel backbone 1 and two same
Parallel secondary rail 2 in plane, two secondary rails 2 are located at two backbones, 1 inside, and secondary 2 both ends of rail are welded with crossbeam 3, and 3 liang of crossbeam
End is respectively welded 1 rail of master；The secondary rail 2 of setting can be passed the active force of supporting structure by the rigid connection with backbone 3
Backbone 1 is passed, when not needing to lift backbone 1, supporting structure can be hidden in inside by backbone 1 and secondary rail 2, make supporting structure bottom
The idler wheel 4 in portion fails.
Supporting structure is mounted on the outside of two secondary rails at golden section point, at the top of strut II by the rotation connection of shaft I with
At the golden section point of secondary rail side, II bottom of strut is equipped with idler wheel, is equipped with shaft II in the middle part of strut I, strut I passes through shaft
II is rotatably connected on the middle part of strut II, and pulley is equipped at the top of strut I, the cunning on pulley and secondary rail that strut I passes through top
Rail is slidably matched, and I bottom of strut is equipped with idler wheel, and pull rod 9 is socketed on the outside of strut II；The supporting structure of setting can play lever
Effect, be that fulcrum amplifies the strength of worker with shaft II 7, after backbone 1 leaves ground, the rolling of supporting structure bottom installation
Original sliding friction is converted to rolling friction by wheel 4, is greatly reduced frictional resistance, is alleviated the work load of worker,
Improve safety.
The top of strut II 8 is fixedly connected with the cylindrical body 10 being slidably matched with 9 inner wall of pull rod, installs at the top of cylindrical body 10
There is Spring Card 12, Spring Card 12 includes U-typed pedestal 11, and towards 9 center of pull rod, 11 bottom of pedestal is equipped with 11 opening of pedestal
Spring I 12, I 12 top of spring are equipped with baffle；The Spring Card 12 of setting ensure that usually strut II 8 is hidden in pull rod 9
Internal economies space, when needing to pull out pull rod, Spring Card 12, which can withdraw baffle 14, no longer to be played the role of being bonded.
Pull rod 9 includes pull rod 9, and the pull rod 9 is in U-typed, and the both ends of pull rod 9 are respectively sleeved on two secondary 2 outsides of rail
Baffle release is caught in pull rod bottom and made by strut II 8, the spring I 12 when strut II 8 protrudes into pull rod bottom inside Spring Card 12
Pull rod 9 reaches with strut II 8 to be stably connected with, and 9 bottom center of pull rod is equipped with hydraulic press 15, and 15 internal pipeline of hydraulic press is in inverted " t "
Type, the caliber ratio of horizontal pipe and vertical pipe in hydraulic press 15 are 1:3, in the horizontal pipe both ends in hydraulic press 15
Equipped with push rod 16, it is equipped with hydraulic stem 17 in the vertical deferent in hydraulic press 15, button 18, button 18 are installed at the top of hydraulic stem 17
Spring II 13 is installed between pull rod 9；Pull rod 9 stretches out when the pull rod telescoping mechanism of setting makes to need, and pull rod 9 contracts when not needing
It returns, the worker that the pull rod 9 of stretching increases strut II 8 exerts oneself the arm of force of side, reduces the labor intensity of worker.
In the horizontal pipe in hydraulic press 15, the other end of push rod 16 is contacted with baffle for push rod one end, 16 middle part of push rod
Be slidably matched restraining position ring block I 19；The stop collar I 19 of setting ensure that the position of push rod, enhance the reliable of pull rod telescoping mechanism
Property.
The inner wall at 9 both ends of pull rod is equipped with a circle stop collar II 20,10 diameter of cylindrical body that II 8 top of strut is fixedly connected
Greater than the internal diameter of stop collar II 20；When the stop collar II 20 of setting ensure that pull rod 9 pulls out, pull rod and strut II without departing from.
Working principle: worker presses lower button 17, the lower pressure of button 17 is transmitted to hydraulic when preparing pull out guide rail first
On bar 13, hydraulic stem 13 is transmitted on the push rod 16 of two sides simultaneously respectively by hydraulic press 15, by pressure, and push rod 16 pushes away in turn
Dynamic baffle 14, the spring I 12 at 14 back side of baffle store elastic potential energy after being compressed；Worker pulls out pull rod 9 at this time, works as drawing
After bar 9 is drawn out completely, the cylindrical body 10 at 9 top of pull rod is limited the blocking of ring II 20；Worker is firmly pushing pull rod 9, at this time
Pull rod 9 and strut II 8 form lever, and fulcrum is left side roller 4, and thus it is found that worker does work, torque arm length is force analysis
The sum of pull rod 9 and the length of strut II 8, the torque arm length of device gravity acting are length of the fulcrum to shaft II 7, therefore worker
Easily strut II 8 and pull rod can be lifted, the shaft II 7 on same strut II 8 drives strut I 5 to hold up, when strut I 5 is holded up
Pulley 21 at the top of it along the sliding rail 22 on secondary rail 2 to moving among secondary rail 2, at this time pulley 21 and shaft I 6 form support will
Secondary rail 2 is lifted away from ground, and secondary rail 2 is lifted backbone 1 due to rigid connection, and after backbone 1 leaves ground, whole device is only
The idler wheel 4 and ground face contact of surplus II 8 bottom of strut I 5 and strut, worker firmly pulls pull rod 9, whole device horizontally outward at this time
It is drawn out, worker unclamps knob 9, and backbone 1 is fallen on the ground again；After completing work, worker according to the above method pushes away device
Initial position is returned, last worker pushes back pull rod level, and strut II 8 resets again, and the baffle 14 on Spring Card 12 is in spring I
It is caught in 9 bottoms of knob again under the elastic potential energy effect of 12 storages.
Only presently preferred embodiments of the present invention is not intended to limit the invention, all in the spirit and principles in the present invention
Within made any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of high-voltage switch cubicle handcart switchs guide rail, it is characterised in that: including guide rail structure, bracket institution and pull rod (9), institute
Stating guide rail structure includes two parallel backbone (1) He Lianggen parallel secondary rails (2) in the same plane in a plane,
Described two secondary rails (2) are located on the inside of two backbones (1), and described pair rail (2) both ends are welded with crossbeam (3), the crossbeam (3)
Both ends are respectively welded a backbone (1), are equipped with sliding rail (22) on the outside of the pair rail (2), the bracket institution is located at two pairs
The one end in the outside of rail (2), bracket institution is equipped with pull rod (9), and the pull rod (9) generates gearing to bracket institution, so that bracket
Mechanism drives the guide rail structure to generate movement.
2. a kind of high-voltage switch cubicle handcart according to claim 1 switchs guide rail, it is characterised in that: the supporting structure packet
The strut I (5) and strut II (8) being mounted on outside two secondary rail (2) two sides are included, passes through shaft I (6) at the top of the strut II (8)
Rotation connection is at the golden section point of secondary rail (2) side, and strut II (8) bottom is equipped with idler wheel (4), the strut I
(5) middle part is equipped with shaft II (7), and the strut I (5) is rotatably connected on the middle part of strut II (8) by shaft II (7), described
It is equipped with pulley (21) at the top of strut I (5), the sliding rail on pulley (21) and secondary rail (2) that the strut I (5) passes through top
(22) it is slidably matched, strut I (5) bottom is equipped with idler wheel (4), is socketed with pull rod (9) on the outside of the strut II (8).
3. a kind of high-voltage switch cubicle handcart according to claim 2 switchs guide rail, it is characterised in that: the strut II (8)
Top be fixedly connected with the cylindrical body (10) being slidably matched with pull rod (9) (reference basis) inner wall, cylindrical body (10) top
Portion is equipped with Spring Card (12), and the Spring Card (12) includes U-shaped bottom seat (11), and pedestal (11) opening is towards pull rod
(9) central, pedestal (11) bottom is equipped with spring I (12), is equipped with baffle (14) at the top of the spring I (12).
4. a kind of high-voltage switch cubicle handcart according to claim 3 switchs guide rail, it is characterised in that: the pull rod (9) is in U
Type, the both ends of the pull rod (9) are respectively sleeved on the strut II (8) on the outside of two secondary rails (2), and the strut II (8) protrudes into drawing
Baffle (14) release is caught in pull rod (9) bottom and makes pull rod (9) by the spring I (12) when bar (9) bottom inside Spring Card (12)
Reach with strut II (8) and be stably connected with, pull rod (9) bottom center is equipped with hydraulic press (15), hydraulic press (15) internal pipeline
In inverted T shaped, the caliber ratio of horizontal pipe and vertical pipe in the hydraulic press (15) is 1:3, in the hydraulic press (15)
It is equipped in horizontal pipe both ends push rod (16), is equipped with hydraulic stem (17) in the vertical deferent in the hydraulic press (15), it is described
It is equipped with button (18) at the top of hydraulic stem (17), spring II (13) is installed between the button (18) and pull rod (9).
5. a kind of high-voltage switch cubicle handcart according to claim 4 switchs guide rail, it is characterised in that: the push rod (16) one
End is in the horizontal pipe in hydraulic press (15), and the other end of the push rod (16) is contacted with baffle (14), the push rod (16)
Middle part is slidably matched restraining position ring block I (19).
6. a kind of high-voltage switch cubicle handcart according to claim 3 switchs guide rail, it is characterised in that: the pull rod (9) two
The inner wall at end is equipped with circle stop collar II (20), and cylindrical body (10) diameter being fixedly connected at the top of the strut II (8) is greater than
The internal diameter of stop collar II (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811332397.9A CN109462166B (en) | 2018-11-09 | 2018-11-09 | Handcart switch guide rail of high-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811332397.9A CN109462166B (en) | 2018-11-09 | 2018-11-09 | Handcart switch guide rail of high-voltage switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109462166A true CN109462166A (en) | 2019-03-12 |
| CN109462166B CN109462166B (en) | 2020-06-26 |
Family
ID=65609888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811332397.9A Active CN109462166B (en) | 2018-11-09 | 2018-11-09 | Handcart switch guide rail of high-voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109462166B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI775645B (en) * | 2021-06-03 | 2022-08-21 | 日商三菱電機股份有限公司 | Pullout device electric machine and switchgear |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR880001792Y1 (en) * | 1981-04-14 | 1988-05-11 | 미쓰비시전기주식회사 | Withdrawl arrangements of switchgear |
| JPH0549122A (en) * | 1991-08-16 | 1993-02-26 | Fuji Electric Co Ltd | Both-sided lifter |
| US20030116413A1 (en) * | 2001-12-21 | 2003-06-26 | Narusevicius Antanas V. | Integrated medium voltage motor control center |
| CN103140375A (en) * | 2010-09-29 | 2013-06-05 | 雷尔戴克斯（2009）有限公司 | Collapsible intermodal transport platform |
| CN203218770U (en) * | 2013-04-02 | 2013-09-25 | 山东泰开电器开关有限公司 | Novel switch cabinet floor-type handcart guide rail |
| CN106159772A (en) * | 2016-07-18 | 2016-11-23 | 国网山东省电力公司东营供电公司 | A kind of universal breaker vehicle guide |
| CN106426053A (en) * | 2016-12-14 | 2017-02-22 | 国网山东省电力公司龙口市供电公司 | Outdoor multifunctional tool box for electricians |
| CN206163969U (en) * | 2016-11-25 | 2017-05-10 | 国网浙江平湖市供电公司 | General dolly of transformer substation |
-
2018
- 2018-11-09 CN CN201811332397.9A patent/CN109462166B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR880001792Y1 (en) * | 1981-04-14 | 1988-05-11 | 미쓰비시전기주식회사 | Withdrawl arrangements of switchgear |
| JPH0549122A (en) * | 1991-08-16 | 1993-02-26 | Fuji Electric Co Ltd | Both-sided lifter |
| US20030116413A1 (en) * | 2001-12-21 | 2003-06-26 | Narusevicius Antanas V. | Integrated medium voltage motor control center |
| CN103140375A (en) * | 2010-09-29 | 2013-06-05 | 雷尔戴克斯（2009）有限公司 | Collapsible intermodal transport platform |
| CN203218770U (en) * | 2013-04-02 | 2013-09-25 | 山东泰开电器开关有限公司 | Novel switch cabinet floor-type handcart guide rail |
| CN106159772A (en) * | 2016-07-18 | 2016-11-23 | 国网山东省电力公司东营供电公司 | A kind of universal breaker vehicle guide |
| CN206163969U (en) * | 2016-11-25 | 2017-05-10 | 国网浙江平湖市供电公司 | General dolly of transformer substation |
| CN106426053A (en) * | 2016-12-14 | 2017-02-22 | 国网山东省电力公司龙口市供电公司 | Outdoor multifunctional tool box for electricians |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI775645B (en) * | 2021-06-03 | 2022-08-21 | 日商三菱電機股份有限公司 | Pullout device electric machine and switchgear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109462166B (en) | 2020-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209348037U (en) | A kind of sport physical training device | |
| CN209488040U (en) | Drawer-type switch cabinet | |
| CN109462166A (en) | A kind of high-voltage switch cubicle handcart switch guide rail | |
| CN206964700U (en) | A kind of animal and veterinary check device | |
| CN204897300U (en) | Go up and down to shift dolly | |
| CN107300341B (en) | One kind is anti-riot to use shield | |
| CN208904517U (en) | A kind of guide rail based on 35kV KYN wheelbarrow switch | |
| CN204734676U (en) | Hand formula is traded and is filled up inspection bed | |
| CN205796268U (en) | A kind of highwire escape apparatus | |
| CN208061801U (en) | A kind of easy-to-mount inductor | |
| CN109893359A (en) | A kind of children's medical bed | |
| CN209347960U (en) | A kind of leg restraint for leg tumor radiotherapy | |
| CN209242614U (en) | A kind of high altitude operation drawstring dead-man's device | |
| CN104689496A (en) | Controller of novel human body backup protection rope | |
| CN204105532U (en) | A kind of hook | |
| CN209500666U (en) | One kind is stretched one's legs training aids | |
| CN202659133U (en) | Climbing ladder with brake | |
| CN208736042U (en) | A kind of novel air energy heat pump drying equipment | |
| CN208520473U (en) | A kind of transfer car(buggy) wagon box weighing mechanism | |
| CN206715184U (en) | A kind of lower limb disability people arm exercise device | |
| CN206924352U (en) | Step on bar safety aid | |
| CN219346804U (en) | Horizontal environment-friendly boiler | |
| CN202737369U (en) | Breaker handcart interlocking device | |
| CN208262784U (en) | A kind of amorphous alloy dry-type transformer body turnover device | |
| CN204428301U (en) | A kind of stretcher |
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 |