CN108483328A - Follow-up detection protection device for lifting platform - Google Patents

Follow-up detection protection device for lifting platform Download PDF

Info

Publication number
CN108483328A
CN108483328A CN201810474784.XA CN201810474784A CN108483328A CN 108483328 A CN108483328 A CN 108483328A CN 201810474784 A CN201810474784 A CN 201810474784A CN 108483328 A CN108483328 A CN 108483328A
Authority
CN
China
Prior art keywords
trigger switch
lifting platform
cylinder
support column
connecting tube
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
Application number
CN201810474784.XA
Other languages
Chinese (zh)
Other versions
CN108483328B (en
Inventor
张丹
倪洪杰
赵云波
吴立锋
黄光普
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang University of Technology ZJUT
Original Assignee
Zhejiang University of Technology ZJUT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang University of Technology ZJUT filed Critical Zhejiang University of Technology ZJUT
Priority to CN201810474784.XA priority Critical patent/CN108483328B/en
Publication of CN108483328A publication Critical patent/CN108483328A/en
Application granted granted Critical
Publication of CN108483328B publication Critical patent/CN108483328B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/08Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

The invention relates to a follow-up detection protection device for a lifting platform, which solves the defects of the prior art and adopts the technical scheme that: the top of support column is connected with lift table surface's bottom, an air vent has been seted up to the cylinder lower part, air vent and cavity intercommunication, the bottom of support column is provided with the permanent magnet of package establishing the cushion, the top of support column is provided with an annular mounting groove, the annular mounting groove intussuseption is equipped with induction coil, induction coil's output runs through the cylinder and is connected with the warning electro-magnet, the warning electro-magnet is installed in first connecting pipe, still install first trigger switch in the first connecting pipe, iron slipper and reset spring, first trigger switch installs on iron slipper, first trigger switch aims at the warning electro-magnet, keep apart through reset spring between first trigger switch and the warning electro-magnet, iron slipper sliding connection is in first connecting pipe, first trigger switch is connected with the control cabinet of portable stage.

Description

The servo-actuated detection protective device of lifting platform
Technical field
This patent is related to a kind of safe ancillary equipment of stage, and in particular to a kind of servo-actuated detection protective device of lifting platform.
Background technology
As the improvement of people's living standards, spiritual civilization demand is more and more vigorous, especially for small-scale stage, micro- The demand of type stage, community's stage, do not limited to with front and back, simple lighting, it is more safe and reliable small-sized The introducing of stage machinery is to promote a shortcut of current small-scale stage, miniature stage, community's stage, carries the dance of mobile module The introducing of platform can greatly enrich stage expressive force, improve the stage form of expression, can build in a limited space preferably Stage effect, therefore, stage of the exploitation with mobile module are imperative.
China Patent Publication No.:CN107905576A, discloses a kind of scissors type elevating at publication date on April 13rd, 2018 Stage is related to stage machinery technical field, what the gravity to solve elevator stage in the prior art concentrated on being vertically arranged Elevator stage is caused to lift problem unstable, that safety coefficient is low on leading screw;It includes the pedestal of supporting rack, fixing support rack With the stage boards mounted on supporting rack upper end, it is provided with the studdle being mutually parallel with stage boards between supporting rack, supports spiral shell Scissor-type lifting mechanism is equipped between bar and stage boards, scissor-type lifting mechanism includes upper connecting pole and lower connecting pole, is connected on two Connect arranged in a crossed manner there are two lifter plate between column and lower connecting pole, two lifter plate upper ends and upper connection are column articulated, and two lift Plate lower end and lower connection are column articulated, and studdle is equipped with the driving mechanism that the lower connecting pole of driving moves in opposite direction.Pass through Implement the technical program, can constitute multi-point support by the force of gravity to supporting rack of stage, improve safety coefficient, and can be real Existing stage fast lifting.But have a problem that being just moveable stage uses lifting platform in such technology(Frame)In addition to cutting Fork elevating mechanism(That is bridging)Etc actuating unit also need to go wrong in bridging in one kind, when carry out safety The urgent ancillary equipment of protection.Currently this equipment is also the absence of in this field.
Invention content
It is an object of the invention to solve the above-mentioned prior art to lack one kind when bridging goes wrong or is passive The problem of carrying out the urgent ancillary equipment of safeguard protection provides a kind of servo-actuated detection protective device of lifting platform.
The technical solution adopted by the present invention to solve the technical problems is:A kind of servo-actuated detection protective device of lifting platform, is fitted For the lifting platform of Mobile stage, the lifting platform of Mobile stage includes hydraulic pressure scissors support component, Lifting platform and fixed frame Frame, the fixed frame are fixedly connected with the ground, and the fixed frame is fixed by hydraulic pressure scissors support component and Lifting platform to be connected It connects, the control terminal of hydraulic pressure scissors support component and the console of Mobile stage connect, and the servo-actuated detection protective device of lifting platform includes The surface of cylinder, bottom nozzle mounts and support column, the cylinder is fixed with the first connecting tube, and the lower part of the cylinder passes through bottom Fixing piece is fixed on ground, and the cylinder is internally provided with vertical cavity, and the support column is plugged on described perpendicular In straight cavity, the support column and the vertical cavity are clearance fit, the top of the support column and Lifting platform Bottom connects, and the cylinder lower part is opened up there are one venthole, and the venthole is connected to the cavity, the bottom of the support column Portion is provided with the permanent magnet that packet sets cushion, and there are one annular mounting groove, the annular installations for the top setting of the support column It is filled out in slot equipped with induction coil, the output end of induction coil is connect through cylinder with alarm electromagnet, and alarm electromagnet is mounted on In first connecting tube, the first trigger switch, iron slider and resetting spring are also equipped in the first connecting tube, first triggering is opened It closes and is mounted on iron slider, first trigger switch is directed at alarm electromagnet, first trigger switch and alarm electromagnet Between be isolated by resetting spring, the iron slider slips in the first connecting tube, and first trigger switch is waved with mobile The console of platform connects.The safety support dagger of the present invention, can be with liter due to the presence of venthole when normal work It drops platform and carries out oscilaltion, execution is servo-actuated action;Four safety support daggers of arranged beneath of preferably each lifting platform quadrangle, When the bridging of stage goes wrong, if lifting platform dramatic decrease, safety support dagger is smaller due to its venthole Factor leads to that instantaneous deformation will not occur, can be with the main lifting platform of temporary stabilization;Then slowly decline;Be not in great in this way Safety accident, meanwhile, this programme structural stability is good, also has detachability, can be mounted on existing Mobile stage, Can also be installed on rural area, common square, the form connected using top flange fitted bolt when installation, adaptability compared with Extensively.Fitup in the present invention refers to the disposable stage of small assembled type, different from general stage vehicle, is generally used for centre type Outdoor rally, performance.The present invention break down when can while playing support output alarm signal, be not necessarily to stage The location information that any transformation would know that stage is carried out to circuit.The electricity that electromagnet is only formed in fly-cutting magnetic induction line Enough electric currents are instantaneously obtained in stream, there is also the requirements of distance for fly-cutting here, i.e., enter sense except induction coil It answers in coil, to trigger alarm, and the electric current that cutting magnetic induction line is formed at a slow speed is not sufficient to the electromagnet for being and pushes magnet, from It alarms without triggering, in the present invention, as long as selecting suitable electromagnet, induction coil, you can reach rational effect.
Preferably, the position that the cavity bottom corresponds to support column is provided with buffer spring, the top of the buffer spring End is configured with cushion.
Preferably, all ventholes are divided into two groups, every group of venthole is respectively positioned on the side of the cylinder, two groups of ventholes Symmetrically.
Preferably, surface is connected with several Hall sensors, the position of the Hall sensor is above described The position of one connecting tube, the output end of the Hall sensor are electrically connected with the console of Mobile stage.
Preferably, the output end of at least one induction coil pass sequentially through a signal amplifier and latch with The console of Mobile stage is electrically connected.
Preferably, being configured with the second connecting tube on the cylinder, second connecting tube is through cylinder and the cavity It is connected, a frizzen is plugged in second connecting tube, the front end of frizzen is semicircle, the front end position of the frizzen It sets and is aligned with the end face of the support column, be also equipped with the second trigger switch and resetting spring in the second connecting tube, described second Trigger switch is directed at the rear end of frizzen, is isolated by resetting spring between second trigger switch and the rear end of frizzen, Second trigger switch is fixed in the second connecting tube, the console connection of second trigger switch and Mobile stage. Setting is a mechanical trigger architecture in this way, can reach further security setting by the triggering of machinery.Also It is that there is also following position relationships with hemispherical projections trigger unit for interlocking bar:Hemispherical projections trigger unit is with smaller momentum and linkage Bar contact when, even if hemispherical projections trigger unit make interlocking bar be in single-point abutting, interlocking bar second end still with Trolley shoe keeps connection, and still, when hemispherical projections trigger unit is contacted with smaller momentum and interlocking bar, interlocking bar is outside The distance of pop-up makes interlocking bar second end be mutually disengaged with trolley shoe enough, thus, it is possible to which so that the present embodiment can be kept It is servo-actuated to realize completely enclosed support again.
Preferably, the power end of the Hall sensor, the first end of the first trigger switch and the second trigger switch First end is connect with accumulator, and the output end of the Hall sensor, the second end of the first trigger switch and the second triggering are opened The second end of pass is connected by the console of bus and Mobile stage, and the accumulator is fixed on cylinder or is mobile electric Source powers.The mode of accumulator setting is varied, can be external accumulator, can also be the electric power storage being fixed on cylinder Pond, structure is relatively easy, and those skilled in the art being capable of obtaining without doubt.
Preferably, the position of second trigger switch is less than the position of first trigger switch.The present invention is in this way Setting drives interlocking bar, interlocking bar action to pop up outward, it is logical that sliding block moves downward blocking if lifting platform drops at threshold value Stomata is ventilated after hole plug, and gas confinement degree is more preferable in cavity, only exposes less venthole, and the support for playing bigger is made With.Trolley shoe can be distributed in interlocking bar top, lower section or have up and down in the application, therefore, multigroup venthole is arranged and makees With being that lifting platform will not cause stage normally to rise when normally rising or falling servo-actuated because of one of venthole is blocked Stage speed goes wrong.
Substantial effect of the invention is:The safety support dagger of the present invention is when normal work, due to venthole In the presence of, it can be with lifting platform progress oscilaltion, execution is servo-actuated action;The arranged beneath of preferably each lifting platform quadrangle Four safety support daggers, when the bridging of stage goes wrong, if lifting platform dramatic decrease, safety support dagger due to The smaller factor of its venthole leads to that instantaneous deformation will not occur, can be with the main lifting platform of temporary stabilization;Then slowly decline;In this way Be not in great safety accident, meanwhile, this programme structural stability is good, also has detachability, can be mounted on existing Mobile stage on, can also be installed on rural area, common square, be connected using top flange fitted bolt when installation Form, adaptability is wider.Fitup in the present invention refers to the disposable stage of small assembled type, not with general stage vehicle Together, the outdoor rally of centre type, performance are generally used for.The present invention can export when breaking down while playing support Alarm signal carries out the location information that any transformation would know that stage without stage to circuit.Electromagnet is only quick Cutting magnetic induction line formed electric current in instantaneously obtain enough electric currents, there is also the requirements of distance for fly-cutting here, i.e., from Except induction coil enter induction coil in, to trigger alarm, and at a slow speed cutting magnetic induction line formed electric current be not sufficient to be Electromagnet push magnet, so that alarm will not be triggered, in the present invention, as long as selecting suitable electromagnet, induction coil, i.e., It can reach rational effect.
Description of the drawings
Fig. 1 is the general arrangement schematic of the present invention;
Fig. 2 is the preferred structure schematic diagram of the present invention;
Fig. 3 is part-structure enlarged diagram in the present invention;
In figure:A1, connection box, a2, support column, a3, cavity, a4, permanent magnet, a5, Hall sensor, a6, the first connection Pipe, a7, the second connecting tube, b1, electromagnet, b2, the first trigger switch, b3, frizzen, b4, the second trigger switch.
Specific implementation mode
Below by specific embodiment, and in conjunction with attached drawing, technical scheme of the present invention will be further explained in detail.
Embodiment 1:
A kind of servo-actuated detection protective device of lifting platform(Referring to attached drawing 1-3), it is suitable for the lifting platform of Mobile stage, movable type dance The lifting platform of platform includes hydraulic pressure scissors support component, Lifting platform and fixed frame, and the fixed frame is fixedly connected with the ground, institute It states fixed frame to be fixedly connected with Lifting platform by hydraulic pressure scissors support component, control terminal and the movable type of hydraulic pressure scissors support component The console of stage connects, and the servo-actuated detection protective device of lifting platform includes cylinder, bottom nozzle mounts and support column a2, the cylinder Surface be fixed with the first connecting tube a6, the lower part of the cylinder is fixed on by bottom nozzle mounts on ground, the column Body is internally provided with vertical cavity a3, and the support column is plugged in the vertical cavity, the support column with it is described Vertical cavity is clearance fit, and the top of the support column and the bottom of Lifting platform connect, and the cylinder lower part offers One venthole, the venthole are connected to the cavity, and the bottom of the support column is provided with the permanent magnet that packet sets cushion The top setting of a4, the support column are filled out equipped with induction coil, the line of induction in the annular mounting groove there are one annular mounting groove The output end of circle is connect through cylinder with alarm electromagnet b1, and alarm electromagnet is mounted in the first connecting tube, the first connecting tube Inside it is also equipped with the first trigger switch, iron slider and resetting spring, first trigger switch is mounted on iron slider, and described the One trigger switch alignment alarm electromagnet, is isolated between first trigger switch and alarm electromagnet by resetting spring, institute It states iron slider to slip in the first connecting tube, the console connection of first trigger switch and Mobile stage.The cavity The position that bottom corresponds to support column is provided with buffer spring, and the top of the buffer spring is configured with cushion.The cylinder Surface is connected with several Hall sensors a5, and the position of the Hall sensor is above the position of first connecting tube, The output end of the Hall sensor is electrically connected with the console of Mobile stage.The output end of at least one induction coil according to It is secondary to be electrically connected with the console of Mobile stage by a signal amplifier and latch.Second is configured on the cylinder Connecting tube a6, second connecting tube are connected through cylinder with the cavity, and a triggering is plugged in second connecting tube The front end of bar b3, frizzen are semicircle, and the front position of the frizzen is aligned with the end face of the support column, the second connection It is also equipped with the second trigger switch b4 and resetting spring in pipe, the rear end of the second trigger switch alignment frizzen, described the It is isolated by resetting spring between two trigger switch and the rear end of frizzen, second trigger switch is fixed on the second connecting tube It is interior, the console connection of second trigger switch and Mobile stage.The power end of the Hall sensor, the first triggering are opened The first end of the first end of pass and the second trigger switch is connect with accumulator, and the output end of the Hall sensor, first touch The second end of the second end and the second trigger switch of sending out switch is connected by the console of bus and Mobile stage, the storage Battery is fixed on cylinder or powers for mobile power.The position of second trigger switch is less than first trigger switch Position.
The safety support dagger of the present embodiment, can be with lifting platform due to the presence of venthole when normal work Oscilaltion is carried out, execution is servo-actuated action;Four safety support daggers of arranged beneath of preferably each lifting platform quadrangle, work as dance When the bridging of platform goes wrong, if lifting platform dramatic decrease, safety support dagger is due to the smaller factor of its venthole Lead to that instantaneous deformation will not occur, it can be with the main lifting platform of temporary stabilization;Then slowly decline;Be not in great safety in this way Accident, meanwhile, this programme structural stability is good, also has detachability, can be mounted on existing Mobile stage, also may be used To be installed on rural area, common square, the form connected using top flange fitted bolt when installation, adaptability is wider. Fitup in the present embodiment refers to the disposable stage of small assembled type, different from general stage vehicle, is generally used for centre type Outdoor rally, performance.The present embodiment break down when can while playing support output alarm signal, without dance Platform carries out circuit the location information that any transformation would know that stage.What electromagnet was only formed in fly-cutting magnetic induction line Enough electric currents are instantaneously obtained in electric current, fly-cutting here enters there is also the requirement of distance except induction coil In induction coil, to trigger alarm, and the electric current that cutting magnetic induction line is formed at a slow speed is not sufficient to the electromagnet for being and pushes sliding rail Block, to which alarm will not be triggered, in the present embodiment, as long as selecting suitable electromagnet, induction coil, you can reach rational Effect.It can select that a connection box a1 is arranged on cylinder when connecting with the console of Mobile stage, then concentrate It is connect with the console of Mobile stage.
In fact, can also be at least provided with a gas vent in the present embodiment middle column body, gas vent and venthole are not It is with place, trolley shoe need not be configured outside gas vent, even if can at least ensures to trigger when lifting platform declines Lifting platform can still be dropped to bottom by interlocking bar in the case of plugging other ventholes.
Embodiment 2:
The present embodiment is substantially the same manner as Example 1, the difference is that, in the present embodiment, it is not provided with gas vent, a row is set Stomata is to cause whole air pressure to be sealed because the end face of support column can trigger the movement of trolley shoe when installing servo-actuated for the first time Closing can not be servo-actuated completely, and therefore, it is necessary to a gas vents, and hand-reset is carried out in a longer period of time, branch The end face of dagger is provided with hemispherical projections trigger unit, and it is because of what the present embodiment was selected that gas vent is not provided in the present embodiment It is more accurately to measure, that is, there is also following position relationships with hemispherical projections trigger unit for interlocking bar:Hemispherical projections When trigger unit is contacted with smaller momentum and interlocking bar, even if hemispherical projections trigger unit makes interlocking bar be in single-point abutting When, interlocking bar second end still keeps connecting with trolley shoe, still, when hemispherical projections trigger unit is with smaller momentum and interlocking bar When contact, the distance that interlocking bar pops up outward makes interlocking bar second end be mutually disengaged with trolley shoe enough, thus, it is possible to So that the present embodiment can keep servo-actuated can realize completely enclosed support again.
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form Limitation, on the premise of not exceeding the technical scheme recorded in the claims also other variations and modifications.

Claims (7)

1. a kind of servo-actuated detection protective device of lifting platform, is suitable for the lifting platform of Mobile stage, the lifting platform of Mobile stage Including hydraulic pressure scissors support component, Lifting platform and fixed frame, the fixed frame is fixedly connected with the ground, the fixed frame It is fixedly connected with Lifting platform by hydraulic pressure scissors support component, the control of the control terminal and Mobile stage of hydraulic pressure scissors support component Platform connects, it is characterised in that:The servo-actuated detection protective device of lifting platform includes cylinder, bottom nozzle mounts and support column, the cylinder Surface be fixed with the first connecting tube, the lower part of the cylinder is fixed on by bottom nozzle mounts on ground, the cylinder Be internally provided with vertical cavity, the support column is plugged in the vertical cavity, the support column with it is described vertical Cavity be clearance fit, the bottom of the top of the support column and Lifting platform connects, there are one the cylinder lower part opens up Venthole, the venthole are connected to the cavity, and the bottom of the support column is provided with the permanent magnet that packet sets cushion, described The top setting of support column is filled out equipped with induction coil in the annular mounting groove there are one annular mounting groove, induction coil it is defeated Outlet is connect through cylinder with alarm electromagnet, and alarm electromagnet is mounted in the first connecting tube, is also installed in the first connecting tube There are the first trigger switch, iron slider and resetting spring, first trigger switch to be mounted on iron slider, first triggering is opened Alignment alarm electromagnet is closed, is isolated by resetting spring between first trigger switch and alarm electromagnet, the iron slider It slips in the first connecting tube, the console connection of first trigger switch and Mobile stage.
2. the servo-actuated detection protective device of lifting platform according to claim 1, it is characterised in that:The cavity bottom corresponds to branch The position of dagger is provided with buffer spring, and the top of the buffer spring is configured with cushion.
3. the servo-actuated detection protective device of lifting platform according to claim 1, it is characterised in that:The surface of the cylinder connects There are several Hall sensors, the position of the Hall sensor to be above the position of first connecting tube, the Hall passes The output end of sensor is electrically connected with the console of Mobile stage.
4. the servo-actuated detection protective device of lifting platform according to claim 1, it is characterised in that:At least one induction coil Output end pass sequentially through a signal amplifier and latch is electrically connected with the console of Mobile stage.
5. the servo-actuated detection protective device of lifting platform according to claim 3, it is characterised in that:Configured with the on the cylinder Two connecting tubes, second connecting tube are connected through cylinder with the cavity, and a triggering is plugged in second connecting tube The front end of bar, frizzen is semicircle, and the front position of the frizzen is aligned with the end face of the support column, the second connecting tube It is inside also equipped with the second trigger switch and resetting spring, the rear end of the second trigger switch alignment frizzen, described second touches It to be isolated by resetting spring between hair switch and the rear end of frizzen, second trigger switch is fixed in the second connecting tube, The console of second trigger switch and Mobile stage connects.
6. the servo-actuated detection protective device of lifting platform according to claim 5, it is characterised in that:The electricity of the Hall sensor The first end of source, the first end of the first trigger switch and the second trigger switch is connect with accumulator, the Hall sensor Output end, the second end of the first trigger switch and the second end of the second trigger switch pass through the control of bus and Mobile stage Platform connection processed, the accumulator are fixed on cylinder or power for mobile power.
7. the servo-actuated detection protective device of lifting platform according to claim 6, it is characterised in that:Second trigger switch Position is less than the position of first trigger switch.
CN201810474784.XA 2018-05-17 2018-05-17 Follow-up detection protection device for lifting platform Active CN108483328B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810474784.XA CN108483328B (en) 2018-05-17 2018-05-17 Follow-up detection protection device for lifting platform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810474784.XA CN108483328B (en) 2018-05-17 2018-05-17 Follow-up detection protection device for lifting platform

Publications (2)

Publication Number Publication Date
CN108483328A true CN108483328A (en) 2018-09-04
CN108483328B CN108483328B (en) 2019-10-15

Family

ID=63353292

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810474784.XA Active CN108483328B (en) 2018-05-17 2018-05-17 Follow-up detection protection device for lifting platform

Country Status (1)

Country Link
CN (1) CN108483328B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112344162A (en) * 2020-09-30 2021-02-09 联想(北京)有限公司 Support device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202704983U (en) * 2012-07-31 2013-01-30 湖北三江航天红阳机电有限公司 Anti-dropping safety device capable of automatically detecting
CN203160753U (en) * 2012-11-28 2013-08-28 总装备部工程设计研究总院 Safe locking device for preventing lifting platform from falling accidentally
CN204463655U (en) * 2015-02-05 2015-07-08 刘蕴葆 Used during elevator falling braking apparatus for demonstrating
CN105545022A (en) * 2015-12-22 2016-05-04 浙江工业大学义乌科学技术研究院有限公司 Revolving stage with magnetic-coded-connection guard bars
CN206088896U (en) * 2016-08-31 2017-04-12 中冶华天工程技术有限公司 Elevating platform electro -magnet electromagnetic force control system
CN107905576A (en) * 2017-12-23 2018-04-13 河南智盈电子技术有限公司 A kind of scissors type elevating stage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202704983U (en) * 2012-07-31 2013-01-30 湖北三江航天红阳机电有限公司 Anti-dropping safety device capable of automatically detecting
CN203160753U (en) * 2012-11-28 2013-08-28 总装备部工程设计研究总院 Safe locking device for preventing lifting platform from falling accidentally
CN204463655U (en) * 2015-02-05 2015-07-08 刘蕴葆 Used during elevator falling braking apparatus for demonstrating
CN105545022A (en) * 2015-12-22 2016-05-04 浙江工业大学义乌科学技术研究院有限公司 Revolving stage with magnetic-coded-connection guard bars
CN206088896U (en) * 2016-08-31 2017-04-12 中冶华天工程技术有限公司 Elevating platform electro -magnet electromagnetic force control system
CN107905576A (en) * 2017-12-23 2018-04-13 河南智盈电子技术有限公司 A kind of scissors type elevating stage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112344162A (en) * 2020-09-30 2021-02-09 联想(北京)有限公司 Support device
CN112344162B (en) * 2020-09-30 2023-11-21 联想(北京)有限公司 Support device

Also Published As

Publication number Publication date
CN108483328B (en) 2019-10-15

Similar Documents

Publication Publication Date Title
CN201705131U (en) Maglev mobile door
CN108483328B (en) Follow-up detection protection device for lifting platform
CN102230344A (en) Coded lock permanent magnet assembly locking device
CN108786150B (en) Safety protection support column of lifting platform
CN201886593U (en) Electric shock prevention voice alarm safety helmet
CN102931026A (en) Gravity conducting sphere sliding rail switch
CN201601409U (en) Central cabinet circuit breaker emergency opening mechanism
CN106744338A (en) Straddle truck collision prevention device
CN104576092B (en) Contact mechanism of switching device capable of realizing three states
CN204802793U (en) No computer lab switch board
CN202624441U (en) Partial ladder provided with magnetic control cut-out switch structure and used for electric vehicle
CN108612348A (en) Lifting platform of movable stage
CN203339496U (en) Live anti-misoperation grounding switch device for high-voltage switch cabinet
CN108756329B (en) Safety support device for movable stage
CN202164886U (en) Locking device for permanent magnet component of combination lock
CN202839326U (en) Protective hook of isolating switch
CN203165791U (en) Arc light fast protection integrated switch
CN205810623U (en) Lead arc microswitch
CN206893579U (en) Utilize the breaker structure of electrodynamic repulsion force rapid-releasing
CN206471284U (en) A kind of new type of relay
CN220149052U (en) Crane heavy hammer limiting safety redundant circuit
CN220078397U (en) Descending and boxing protection circuit for container crane
CN219167565U (en) Safety belt suspension device special for overhauling switch cabinet
CN202872231U (en) Breaker closing interlocking plant
CN202687804U (en) Limit control device for crown block

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
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20180904

Assignee: Taizhou Lanjing cleaning machinery Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2023980038558

Denomination of invention: Lifting platform follow-up detection and protection device

Granted publication date: 20191015

License type: Common License

Record date: 20230726

EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20180904

Assignee: Deqing Yuanhao Building Materials Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2023980040860

Denomination of invention: Lifting platform follow-up detection and protection device

Granted publication date: 20191015

License type: Common License

Record date: 20230831

EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20180904

Assignee: Shandong precision product quality inspection Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2023980042381

Denomination of invention: Lifting platform follow-up detection and protection device

Granted publication date: 20191015

License type: Common License

Record date: 20230925

EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20180904

Assignee: Foshan WanChen Technology Co.,Ltd.

Assignor: JIANG University OF TECHNOLOGY

Contract record no.: X2024980000076

Denomination of invention: Lifting platform follow-up detection and protection device

Granted publication date: 20191015

License type: Common License

Record date: 20240104