CN110203798A - A kind of car top platform - Google Patents
A kind of car top platform Download PDFInfo
- Publication number
- CN110203798A CN110203798A CN201910485010.1A CN201910485010A CN110203798A CN 110203798 A CN110203798 A CN 110203798A CN 201910485010 A CN201910485010 A CN 201910485010A CN 110203798 A CN110203798 A CN 110203798A
- Authority
- CN
- China
- Prior art keywords
- car top
- platform
- crossbeam
- guard
- platform according
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a kind of car top platforms, including car top guard is arranged above car top, the car top guard is provided with the opening for people's disengaging, dismountable platform is provided on the car top guard, folding auxiliary guardrail is additionally provided on the outside of the platform, the auxiliary guardrail is also equipped with opening identical with the opening direction of the car top guard.When host be mounted so as to inside hoistway it is excessively high; cause service personnel station when car top does not reach host; service personnel can be increased by the platform being arranged on car top guard; service personnel station can overhaul host on platform; and the setting auxiliary guardrail outside platform, to stand, the service personnel on platform provides protection;After having overhauled, auxiliary guardrail can be folded, and dismantle platform, restore the height of the car top guard of conventional elevator car top.
Description
Technical field
The present invention relates to lift facility field more particularly to a kind of car top platforms.
Background technique
The main parts sizes such as machine-roomless elevator mainframe, control cabinet inside hoistway, tie up in car top by service personnel station
Components in well workover road.When host is mounted in hoistway top layer, host installation site is for counterweight to be avoided, the upper short-selling of carriage
Between, installation site wants high as far as possible, however host dress get Tai Gao can overhaul service personnel and have an impact, service personnel station
Host is not reached in car top.It brings inconvenience to the work of service personnel, working efficiency reduces.
Summary of the invention
In view of this, the present invention proposes a kind of car top platform, it can solve service personnel in car top and do not reach master
Machine leads to the ill problem of upkeep operation.
The technical scheme of the present invention is realized as follows:
A kind of car top platform, including car top guard is set above car top, the car top guard is provided with for people's disengaging
It is open, is provided with dismountable platform on the car top guard, folding auxiliary guardrail is additionally provided on the outside of the platform,
The auxiliary guardrail is also equipped with opening identical with the opening direction of the car top guard.
As the further optinal plan of car top platform, the car top guard includes circumferentially spaced several along car top
First vertical bar;In addition to the open side of the car top guard, first crossbeam is provided between first vertical bar of adjacent two.
As the further optinal plan of car top platform, the auxiliary guardrail includes circumferentially spaced along the platform
Several flexible vertical bars;In addition to the open side of the auxiliary guardrail, the second cross is provided at the top of the flexible vertical bar of adjacent two
Beam.
As the further optinal plan of car top platform, the flexible vertical bar is arranged in car top, the flexible vertical bar bottom
Portion is provided with third crossbeam, is provided with folding stand between the second cross beam and the third crossbeam.
As the further optinal plan of car top platform, guide cylinder is provided on the outside of the first crossbeam, it is described flexible
Vertical bar is arranged in the guide cylinder, and third crossbeam is provided between two guide cylinders, and the second cross beam and the third are horizontal
Folding stand is provided between beam.
As the further optinal plan of car top platform, the folding stand folds module by least one and forms, described
Module is folded to be made of the central rotatable connection of two bars;The connection for folding module and folding module is by one
It is a fold module two bars end be rotatably connected another fold module two bars end.
It is extended state when the auxiliary guardrail is unfolded as the further optinal plan of car top platform, the auxiliary shield
The fixed mechanism remained extended as is provided on column.
As the further optinal plan of car top platform, the fixed mechanism includes being arranged in second cross beam and the third
Limited block on crossbeam, the fixed link being arranged on second cross beam and the third crossbeam;It is provided with guide groove on the limited block,
The end of the lever is slidably connected by guide rod and the guide groove;Hook is provided in the fixed link, when the auxiliary is protected
When column is in extended state, the hook cooperates with the guide rod.
As the further optinal plan of car top platform, the platform is foldable.
As the further optinal plan of car top platform, several location holes, the platform are provided on the first crossbeam
Cooperated by positioning pin and the location hole.
The beneficial effects of the present invention are: when host be mounted so as to inside hoistway it is excessively high, cause service personnel station in car roof
When portion does not reach host, service personnel can be increased by the platform being arranged on car top guard, and service personnel stands in platform
On host can be overhauled, and the setting auxiliary guardrail outside platform, to stand, service personnel on platform provides protection;
After having overhauled, auxiliary guardrail can be folded, and dismantle platform, restore the height of the car top guard of conventional elevator car top,
Top layer height is not influenced.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of the unfolded state of car top platform of the present invention;
Fig. 2 is a kind of structural schematic diagram of the reset condition of car top platform of the present invention;
Fig. 3 is the enlarged drawing of A in Fig. 1;
Fig. 4 is the enlarged drawing of B in Fig. 1.
In figure: 1, car top guard;11, the first vertical bar;12, first crossbeam;121, location hole;13, guide cylinder;2, platform;
21, positioning pin;3, guardrail is assisted;31, stretch vertical bar;32, second cross beam;33, third crossbeam;34, folding stand;341, lever;
4, limited block;41, guide groove;5, fixed link;51, it links up with;6, guide rod.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral;It can be mechanical connect
It connects, is also possible to be electrically connected;It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " can be fisrt feature and be directly above or diagonally above the second feature, or only table
Show that first feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
Fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
With reference to Fig. 1-4, a kind of car top platform is shown, including car top guard 1, the car top guard are set above car top
1 is provided with the opening for people's disengaging, is provided with dismountable platform 2 on the car top guard 1, the outside of the platform 2 is also set
It is equipped with folding auxiliary guardrail 3, the auxiliary guardrail 3 is also equipped with open identical with the opening direction of the car top guard 1
Mouthful.
Specifically, with reference to Fig. 2, the car top platform 1 in a state of nature when, service personnel is from the car top guard 1
Opening enters car top, when service personnel's discovery does not reach the host being arranged in hoistway;Service personnel opens the auxiliary
Guardrail 3, and platform 2 is fixed on the car top guard 1, the car top platform 1 is in extended state at this time, with reference to Fig. 1, maintenance
Personnel overhaul host on platform at station.
Embodiment one
A kind of car top platform, including car top guard 1 is set above car top, the car top guard 1 is provided with to be passed in and out for people
Opening, be provided with dismountable platform 2 on the car top guard 1, the outside of the platform 2 is additionally provided with folding auxiliary
Guardrail 3, the auxiliary guardrail 3 are also equipped with opening identical with the opening direction of the car top guard 1.Certainly, the sedan-chair
Top guardrail 1 is preferably arranged to around 3 faces of elevator car top, and the opening of the car top guard 1 corresponds to and enters elevator shaft
On one side.
In some specific embodiments, in order to ensure the stabilized structure of the car top guard 1, the car top guard 1
Including several first vertical bars 11, first vertical bar 11 is provided at circumferentially spaced along car top, and first vertical bar 11 is fixed on car top
On, first crossbeam 12 is provided on two adjacent first vertical bars 11;Natural, the opening of the car top guard 1
There is no first crossbeam 12 between first vertical bar 11 of side.
In some specific embodiments, the auxiliary guardrail 3 includes several flexible vertical bars 31, the flexible vertical bar
31 are provided at circumferentially spaced along the platform, are provided with second cross beam 32 at the top of two adjacent flexible vertical bars 31;Reason is worked as
Right, there is no second cross beam 32 between the flexible vertical bar 31 of the open side of the auxiliary guardrail 3.Pass through the flexible vertical bar 31
Achieve the purpose that fold the auxiliary guardrail 3, is that service personnel of the station on platform 2 mentions by the second cross beam 32
For protection effect.
In some specific embodiments, in order to save the material of the flexible vertical bar 31, the first crossbeam 11
Outside is provided with guide cylinder 13, and the flexible vertical bar 31 is arranged in the guide cylinder 13, can so not need to stretch described
Contracting vertical bar 31 is made to too long, while also mitigating the weight in car top.In order to ensure it is described auxiliary guardrail 3 protection effect,
It is provided with third crossbeam 33 between two guide cylinders 13, is provided with folding between the second cross beam 32 and the third crossbeam 33
Frame 34 can so make the structure of 32 lower section of second cross beam more dense, service personnel is avoided to wear below second cross beam 32
Out, while folding stand 34 can satisfy the folding movement for cooperating the flexible vertical bar 31.
The folding stand 34 folds module by least one and forms, and the folding module is by two bars 341
Heart position is rotatably connected composition;The connection for folding module and folding module is two bars that module is folded by one
341 end position be rotatably connected another fold module two bars 341 end position.And according to the auxiliary
The height of guardrail 3, the folding stand 34 space density the considerations of, can choose it is described fold module quantity.
In some specific embodiments, in order to guarantee the stable structure of the auxiliary guardrail 3, when the auxiliary guardrail
3 in extended state as shown in figure 1 when, be provided with the fixed mechanism remained extended as on the auxiliary guardrail 3.
Specifically, the fixed mechanism includes being arranged on second cross beam 32 and the third crossbeam 33 with reference to Fig. 3
Limited block 4, the fixed link 5 being arranged on second cross beam 32 and the third crossbeam 33;Guide groove is provided on the limited block 4
41, the end of the lever 341 is slidably connected by guide rod 6 with the guide groove 41;It is provided with hook 51 in the fixed link 5,
When the auxiliary guardrail 3 is in extended state, the hook 51 cooperates with the guide rod 6.The fixed mechanism preferably exists
The upper left corner, the upper right corner, the lower left corner and the lower right corner setting of each folding stand 34, may insure that structure is more stable in this way.
In other words, by taking Fig. 3 as an example, Fig. 3 shows the fixed mechanism in the upper left corner of folding stand 34, when the hook 51
When not catching on the guide rod 6, the folding stand 34 can be folded slowly under gravity, and guide rod 6 described in Fig. 3 can gradually
It is moved to the left side of the guide groove 41, the last auxiliary railing 3 becomes the reset condition in Fig. 2;When service personnel will be described
Second cross beam 32 lifts, and the folding stand 34 stretches under the effect of external force, and guide rod 6 described in Fig. 3 can be along the guide groove 41
It moves right, movement represents the stretching, extension of folding stand 34 and finishes when being at the end, then the hook 51 of the fixed link 5 is caught on
The guide rod 6 limits the guide rod 6 toward moving left, and the auxiliary railing 3 becomes the extended state in Fig. 1.
In some specific embodiments, the platform 2 is foldable, such as the platform 2 in Fig. 2, can fold placement,
Save the space in car top.
In some specific embodiments, with reference to Fig. 4, several location holes 121, institute are provided on the first crossbeam 12
Platform 2 is stated to cooperate by positioning pin 21 and the location hole 121.It is easy to operate, keep the platform 2 not only easy to disassemble but also fixed flat
Surely.
In some specific embodiments, with reference to Fig. 2 and Fig. 4, the platform 2 includes several pieces of plates, plate and flat
It is connected by hinge between plate, hanging rod is extended in the two sides of the plate, and the hanging rod frame is described on the first crossbeam 12
There is hole on hanging rod, the hanging rod is cooperated by positioning pin 21 and the location hole 121;The length of the plate is less than two opposite
The distance between first crossbeam 12;In Fig. 2, when platform 2 fold when, can the hanging rod frame on the first crossbeam 12,
And the plate hangs in the lower section of the first crossbeam 12, and platform 2 is placed on the side of the car top guard 1, very
Space-efficient is saved to occupy.
Embodiment two
Embodiment two is basically the same as the first embodiment, unlike, flexible 31 bottom of vertical bar is provided with third crossbeam
33, folding stand 34 is provided between the second cross beam 32 and the third crossbeam 33.In other words, on the auxiliary railing 3
Flexible vertical bar 31 be directly anchored in car top, can so mitigate the pressure to the first crossbeam 12;Certainly, described flexible
Setting position of the vertical bar 31 in the car top is the outside of first vertical bar 11.The foregoing is merely preferable realities of the invention
Mode is applied, is not intended to limit the invention, all within the spirits and principles of the present invention, made any modification is equal
Replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of car top platform, including car top guard is set above car top, the car top guard is provided with opening for people's disengaging
Mouthful, which is characterized in that it is provided with dismountable platform on the car top guard, is additionally provided on the outside of the platform folding
Guardrail is assisted, the auxiliary guardrail is also equipped with opening identical with the opening direction of the car top guard.
2. a kind of car top platform according to claim 1, which is characterized in that the car top guard includes between car top circumferential direction
Every several first vertical bars of setting;In addition to the open side of the car top guard, it is arranged between first vertical bar of adjacent two
There is first crossbeam.
3. a kind of car top platform according to claim 2, which is characterized in that the auxiliary guardrail includes along the platform week
To spaced several flexible vertical bars;In addition to the open side of the auxiliary guardrail, at the top of the flexible vertical bar of adjacent two
It is provided with second cross beam.
4. a kind of car top platform according to claim 3, which is characterized in that the flexible vertical bar is arranged in car top, institute
It states flexible vertical bar bottom and is provided with third crossbeam, be provided with folding stand between the second cross beam and the third crossbeam.
5. a kind of car top platform according to claim 3, which is characterized in that be provided with guiding on the outside of the first crossbeam
Cylinder, the flexible vertical bar are arranged in the guide cylinder, are provided with third crossbeam between two guide cylinders, the second cross beam and
Folding stand is provided between the third crossbeam.
6. a kind of car top platform according to claim 4 or 5, which is characterized in that the folding stand is by least one folding
Module composition, the folding module are made of the central rotatable connection of two bars;The folding module and segmental mold
The connection of block be by one fold module two bars end be rotatably connected another fold module two bars
End.
7. a kind of car top platform according to claim 6, which is characterized in that be stretch-like when the auxiliary guardrail is unfolded
State is provided with the fixed mechanism remained extended as on the auxiliary guardrail.
8. a kind of car top platform according to claim 7, which is characterized in that the fixed mechanism includes setting in the second cross
Beam and limited block on the third crossbeam, the fixed link being arranged on second cross beam and the third crossbeam;The limited block
On be provided with guide groove, the end of the lever is slidably connected by guide rod and the guide groove;Hook is provided in the fixed link,
When the auxiliary guardrail is in extended state, the hook cooperates with the guide rod.
9. a kind of car top platform according to claim 1 or 8, which is characterized in that the platform is foldable.
10. a kind of car top platform according to claim 9, which is characterized in that it is several fixed to be provided on the first crossbeam
Position hole, the platform are cooperated by positioning pin and the location hole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910485010.1A CN110203798B (en) | 2019-06-05 | 2019-06-05 | Car roof platform |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910485010.1A CN110203798B (en) | 2019-06-05 | 2019-06-05 | Car roof platform |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110203798A true CN110203798A (en) | 2019-09-06 |
CN110203798B CN110203798B (en) | 2021-07-09 |
Family
ID=67790894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910485010.1A Active CN110203798B (en) | 2019-06-05 | 2019-06-05 | Car roof platform |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110203798B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112607547A (en) * | 2020-12-08 | 2021-04-06 | 湖北惠天下建工科技股份有限公司 | Safety protection device for elevator car roof maintenance |
CN113277395A (en) * | 2021-05-26 | 2021-08-20 | 广东皇朝富士电梯有限公司 | Car roof maintenance platform structure |
CN113682921A (en) * | 2021-08-24 | 2021-11-23 | 崔晓江 | Simple hoistway platform |
US11267678B2 (en) * | 2020-03-23 | 2022-03-08 | Kone Corporation | Elevator car installation including car roof safety latch |
US11427441B2 (en) | 2020-07-23 | 2022-08-30 | Otis Elevator Company | Elevator car with foldable working platform |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2183988Y (en) * | 1994-01-18 | 1994-11-30 | 吴凤山 | Horizontal and self-lock hydraulic jack |
CN1675121A (en) * | 2003-07-22 | 2005-09-28 | 三菱电机株式会社 | Working scaffold device for elevator |
CN101920893A (en) * | 2010-08-27 | 2010-12-22 | 康力电梯股份有限公司 | Cage top overhauling platform |
CN204297879U (en) * | 2014-12-01 | 2015-04-29 | 广东铃木电梯有限公司 | A kind of simple type car top inspection case |
CN204960361U (en) * | 2015-09-17 | 2016-01-13 | 上海宝冶集团有限公司 | Scalable used repeatedly prevents guardrail bar |
CN107605239A (en) * | 2017-09-22 | 2018-01-19 | 南京思齐环保仪器有限公司 | A kind of Telescopic guardrail for being easy to adjust height |
CN107905517A (en) * | 2017-11-27 | 2018-04-13 | 四川大黄河钢结构工程有限公司 | Large-sized workshop high-altitude maintenance scaffold |
CN208518439U (en) * | 2018-05-15 | 2019-02-19 | 武琸凯 | A kind of property elevator reparing foldable guardrail |
-
2019
- 2019-06-05 CN CN201910485010.1A patent/CN110203798B/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2183988Y (en) * | 1994-01-18 | 1994-11-30 | 吴凤山 | Horizontal and self-lock hydraulic jack |
CN1675121A (en) * | 2003-07-22 | 2005-09-28 | 三菱电机株式会社 | Working scaffold device for elevator |
CN101920893A (en) * | 2010-08-27 | 2010-12-22 | 康力电梯股份有限公司 | Cage top overhauling platform |
CN204297879U (en) * | 2014-12-01 | 2015-04-29 | 广东铃木电梯有限公司 | A kind of simple type car top inspection case |
CN204960361U (en) * | 2015-09-17 | 2016-01-13 | 上海宝冶集团有限公司 | Scalable used repeatedly prevents guardrail bar |
CN107605239A (en) * | 2017-09-22 | 2018-01-19 | 南京思齐环保仪器有限公司 | A kind of Telescopic guardrail for being easy to adjust height |
CN107905517A (en) * | 2017-11-27 | 2018-04-13 | 四川大黄河钢结构工程有限公司 | Large-sized workshop high-altitude maintenance scaffold |
CN208518439U (en) * | 2018-05-15 | 2019-02-19 | 武琸凯 | A kind of property elevator reparing foldable guardrail |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11267678B2 (en) * | 2020-03-23 | 2022-03-08 | Kone Corporation | Elevator car installation including car roof safety latch |
US11427441B2 (en) | 2020-07-23 | 2022-08-30 | Otis Elevator Company | Elevator car with foldable working platform |
CN112607547A (en) * | 2020-12-08 | 2021-04-06 | 湖北惠天下建工科技股份有限公司 | Safety protection device for elevator car roof maintenance |
CN113277395A (en) * | 2021-05-26 | 2021-08-20 | 广东皇朝富士电梯有限公司 | Car roof maintenance platform structure |
CN113277395B (en) * | 2021-05-26 | 2022-12-27 | 广东皇朝富士电梯有限公司 | Car roof maintenance platform structure |
CN113682921A (en) * | 2021-08-24 | 2021-11-23 | 崔晓江 | Simple hoistway platform |
Also Published As
Publication number | Publication date |
---|---|
CN110203798B (en) | 2021-07-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110203798A (en) | A kind of car top platform | |
CN1982195A (en) | Foldable self-locking toe guard for elevator car | |
CN108137295A (en) | Mobilecrane and make its main boom extension with respect to the method that main boom is bent | |
CN104818943A (en) | Elevator pit ladder | |
CN201059162Y (en) | Hydro-cylinder lifting type folding derrick | |
CN104533461B (en) | A kind of tunnel construction trolley horizontal mobile device | |
CN105971262B (en) | A kind of attached wall support operation post of foldable tool formula | |
CN210795684U (en) | Novel movable lifting platform | |
CN209684027U (en) | New railway carriage docking platform | |
CN112299329B (en) | Folding auxiliary basket for boiler furnace maintenance platform | |
CN208531952U (en) | A kind of elevator pit safety overhauling device | |
CN201310370Y (en) | Large mining height shield hydraulic support | |
CN104847283B (en) | Cluster well drilling module drilling rod ramp, ocean | |
CN113184770B (en) | High-altitude operation engineering machine and operation platform assembly thereof | |
CN109519035A (en) | Lift fission guardrail | |
CN214214214U (en) | Precast beam stretch-draw rack | |
CN113247033B (en) | Foldable guardrail and railway wagon | |
CN105731200B (en) | Elevator Stop supporting mechanism | |
CN212174256U (en) | Crane trolley and crane | |
CN201620315U (en) | Rail protector for railroad construction machinery and rail protector for rail replacement vehicles | |
CN105143588A (en) | Set of ladders, in particular fire ladder and vehicle equipped therewith | |
CN110498325B (en) | Telescopic foot protection plate | |
CN208413589U (en) | A kind of heavy-duty elevator car frame | |
CN209685081U (en) | Elevator device and car top guard | |
CN206069146U (en) | A kind of Multifunctional construction platform |
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 |