CN110203798A - A kind of car top platform - Google Patents

A kind of car top platform Download PDF

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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
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CN
China
Prior art keywords
car top
platform
crossbeam
guard
platform according
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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
Application number
CN201910485010.1A
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Chinese (zh)
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CN110203798B (en
Inventor
夏博
蒙良勇
陈程
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Hitachi Elevator China Co Ltd
Original Assignee
Hitachi Elevator China Co Ltd
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Publication date
Application filed by Hitachi Elevator China Co Ltd filed Critical Hitachi Elevator China Co Ltd
Priority to CN201910485010.1A priority Critical patent/CN110203798B/en
Publication of CN110203798A publication Critical patent/CN110203798A/en
Application granted granted Critical
Publication of CN110203798B publication Critical patent/CN110203798B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02Cages, i.e. cars
    • B66B11/0226Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation

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  • 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

A kind of car top platform
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.
CN201910485010.1A 2019-06-05 2019-06-05 Car roof platform Active CN110203798B (en)

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

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CN110203798A true CN110203798A (en) 2019-09-06
CN110203798B CN110203798B (en) 2021-07-09

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Cited By (5)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (8)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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