CN108792900A - A kind of lift work platform that accident rate is low - Google Patents
A kind of lift work platform that accident rate is low Download PDFInfo
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- CN108792900A CN108792900A CN201811014762.1A CN201811014762A CN108792900A CN 108792900 A CN108792900 A CN 108792900A CN 201811014762 A CN201811014762 A CN 201811014762A CN 108792900 A CN108792900 A CN 108792900A
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- lift work
- carrying platform
- strut
- work platform
- fall
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- 238000005096 rolling process Methods 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 239000000945 filler Substances 0.000 claims description 16
- 238000005192 partition Methods 0.000 claims description 14
- 230000008859 change Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 230000003028 elevating effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 7
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
- B66B13/143—Control systems or devices electrical
-
- 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
- B66B11/0233—Lighting systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/30—Constructional features of doors or gates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/26—Positively-acting devices, e.g. latches, knives
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Platform Screen Doors And Railroad Systems (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The present invention relates to the low lift work platforms of accident rate, it includes carrying platform frame, driving mechanism, rolling screen door, wherein rolling screen door includes doorframe, door curtain, the actuator for driving door curtain drops down to be closed doorframe, is arranged in door curtain bottom bumper, pressure sensor and PLC controller, wherein PLC controller is connected with the actuator, after PLC controller obtains pressure sensor information, the instruction for stopping downlink and reversing reset and moving is assigned to actuator；Lift work platform further includes that safe anti-falling falls mechanism, which falls mechanism and include anti-fall hook, be correspondingly arranged at the anti-fall more cross bars and draw bar linked up with opposite side and be spaced apart successively along the short transverse of riser guide.When one aspect of the present invention prevents unexpected, carrying platform falls；On the other hand in door closing course, the phenomenon that preventing cargo damage and injury to personnel caused by shutdown, occurs, and improves safety in utilization.
Description
Technical field
The invention belongs to lift work platform fields, and in particular to a kind of lift work platform that accident rate is low.
Background technology
It is well known that lift work platform is widely used in the transmission of cargo, such as：Cargo location between two floors turns
Change, although, final purpose with using Cargo Lift conversion effect it is identical, used lift work platform compared with Cargo Lift, at
This lower, also installation at very convenient scene.
Currently, for lift work platform its each floor set there are one inlet and outlet, then by the way of rolling screen door
Will inlet and outlet be closed, the rolling screen door is as the car door of Cargo Lift, still, it is contemplated that rolling screen door it is safe to use, such as
If when occurring unexpected during shutdown or when operating personnel do not pay attention to, it is easy on the body for being pressed onto cargo or passenger, if not
Stop shutdown action words in time, cargo or the damage of personnel, safety wretched insufficiency can be caused.
Then, in existing lift work platform, substantially by the way of chain and the cooperation of track and pulley,
Carrying platform oscilaltion is driven therefore to snap under situation once there is chain under the driving of hydraulic cylinder, carrying platform
The possibility of accidental falling can occur, therefore, the application is provided with track pulley self-locking device, thoroughly solves carrying platform operation hair
The problem of raw accidental falling, meanwhile, it, can be constant in setting position by carrying platform by manual manipulation track pulley self-locking device
It sets, also allows for the maintenance and maintenance of lift work platform.
Invention content
It is low the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a kind of improved accident rate
Lift work platform, when one side prevents unexpected, carrying platform falls；On the other hand in door closing course, barrier is encountered
It can stop continuing the action closed the door after hindering, and quickly return and reset, prevent cargo damage and injury to personnel caused by shutdown
Phenomenon occurs, and therefore, under the two combination, significantly increases the safety in utilization of lift work platform.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows：
A kind of lift work platform that accident rate is low comprising carrying platform frame, for drive carrying platform frame oscilaltion transport
Dynamic driving mechanism and the rolling screen door for being correspondingly arranged at every layer of inlet and outlet, wherein driving mechanism includes hydraulic cylinder, transmission chain
Wheel and chain, rolling screen door include be arranged at every layer import and export position doorframe, be arranged at the top of doorframe and can furl door curtain,
And the actuator that doorframe is closed by driving door curtain drops down, in particular, being equipped with to form closed housing in door curtain bottom
Bumper is arranged on bumper for monitoring the pressure sensor of air pressure change in cavity and can receive pressure sensing
The PLC controller of the sent out pressure changing information of device, wherein PLC controller are connected with the actuator, work as PLC controller
After obtaining pressure sensor information, the instruction for stopping downlink and reversing reset and moving is assigned to actuator；
Lift work platform further includes that safe anti-falling falls mechanism, and it includes that overturning is arranged in carrying platform frame which, which falls mechanism,
The anti-fall hook of opposite sides, be correspondingly arranged at the anti-fall hook opposite side and along the short transverse of riser guide successively between
Every more cross bars of distribution and for by the hooked ends of the anti-fall hook and the chain phase for connecting the carrying platform frame
The draw bar of connection, wherein safety zone is formed between per two adjacent cross bars, when the carrying platform frame normal operation
When, the chain applies stress to the draw bar, and draws the anti-fall hook holding and transported into the carrying platform frame
Dynamic trend and far from the safety zone；When the chain snaps, the draw bar loses limitation, the anti-fall hook
It moves and is hung on the cross bar where the safety zone bottom to immediate safety zone, it is flat to limit the carrying
Rack falls.
Preferably, the material of bumper is rubber or plastics, and include the filler strip extended along the door curtain width direction,
Door curtain bottom described in when the sealing plate for being closed filler strip both ends, wherein sealing plate and filler strip and expansion constitutes a closure
Cavity, after filler strip and other objects contact, in cavity air pressure change, pressure sensor feeds back to information described
PLC controller.
Further, bumper further includes the partition board of setting in the cavity, and cavity is separated by partition board in multiple points of chambers, and phase
It is interconnected between two points of adjacent chambers.On the one hand the sizing support of bumper is realized in the setting of partition board, reinforce Anti-knocking performance,
The reset of bumper is also allowed for simultaneously；On the other hand it is formed and divides chamber, once a certain point of chamber is squeezed, other divide the gas of chamber
Pressure can change significantly, to improve the susceptibility of pressure sensor.
Specifically, being formed with air-flow through-hole in the middle part of partition board.
A specific implementation according to the present invention and preferred aspect, partition board have two pieces, uniform along the length direction of filler strip
Distribution, cavity are divided into first point of chamber, second point of chamber and third along length direction and divide chamber.
Preferably, pressure sensor has two groups, and is correspondingly arranged at first point of chamber respectively and third is divided on chamber.
Preferably, the section of bumper is in opening up U-shaped.
A specific implementation according to the present invention and preferred aspect, U-shaped width are equal to the thickness of door curtain, and U-shaped vertical
The length in portion is 2 ~ 3 times of bottom arc radius length.
Preferably, actuator includes winding the wireline reel of door curtain, the drive motor of forward and reverse rotation and for that will drive
The driving member that motor is sequentially connected with wireline reel.
In addition, rolling screen door further includes the contact-making switch being connected with every layer of lighting circuit, and when rolling screen door is opened, respective layer
Contact-making switch connection circuit, headlamp be in illuminates state；After rolling screen door is closed, the contact-making switch open circuit of respective layer is shone
Bright lamp is in OFF state.
It is according to the present invention another specific implementation and preferred aspect, it is anti-fall hook include from one end by pivot with hold
Carrying platform frame rotates the ontology of connection, the hook portion that is arranged in ontology the other end and is formed with hanging buckle slot, wherein draw bar
Chain is connected to in hook portion, after draw bar loses the active force of chain, anti-fall hook is overturn under dead weight to safety zone.
Preferably, the section of cross bar is square, and hook portion is hung on from the hanging buckle slot being arranged downward on cross bar.
Another specific implementation according to the present invention and preferred aspect, hook portion include being arranged in ontology far from pivot ends
Extension of module, be arranged in extension of module outer end and the extension side module that extends downwardly, wherein extension of module and hang side module, with
And the side of body upper part constitutes hanging buckle slot, and when hook portion is hung on cross bar, hook portion is engaged in cross bar from hanging buckle slot
On.The benefit being arranged in this way：One, can gradually be made by cross bar and the contact of body upper part side and guiding in the moment fallen
It obtains cross bar to enter in hanging buckle slot, completes hanging buckle；Two, pass through the occlusion of hanging buckle slot and cross bar so that the carrying platform after hanging buckle
Frame is stablized relatively, reduces and shakes.
Preferably, draw bar is telescopic rod.
Specifically, the type of drive of telescopic rod is electronic, pneumatically or hydraulically.Here, applicant explains, using flexible
The purpose of bar is：In normal service, the overturning of anti-fall hook can be realized by the adjusting of telescopic rod, thus by carrying platform
It is located on the cross bar of setting, it is very convenient.
Another specific implementation according to the present invention and preferred aspect, it further includes for by anti-fall extension that safe anti-falling, which falls mechanism,
The connector that the hooked ends of hook are connected to each other with carrying platform frame, wherein connector are opened or folding as anti-fall hook is overturn
Setting.
Preferably, connector includes from one end rotation connection and being capable of opening or the first strut of folding in 0 ~ 180 °
With the second strut, wherein the other end of the first strut and the second strut rotate respectively be connected to hooked ends and carrying platform
On frame, when it is anti-fall link up with overturn to safety zone when, the first strut and the second strut gradually strut, and cross is hung on until anti-fall
After bar, the first strut and the second strut are on the same line.That is, when anti-fall hook coordinates with cross bar, first
Strut and the second strut form a supporting rod, to prevent locking hook.
In addition, it is arranged in parallel between more cross bars, and positioned at the symmetrical setting of cross bar of both sides.
Meanwhile the riser guide positioned at the same side has two, more cross bars are uniformly distributed along riser guide length direction,
And it is located in the outside of two riser guides of homonymy.In short, the effect of cross bar can not only coordinate with anti-fall hook to prevent
Carrying platform falls, but also can reinforce track firmness, and then simplifies the structure of lift work platform.
Due to the implementation of above technical scheme, the present invention has the following advantages that compared with prior art：
When one aspect of the present invention prevents unexpected, carrying platform falls；On the other hand in door closing course, energy after obstacle is encountered
Enough actions for stopping continuing to close the door, and quickly return and reset, the phenomenon that preventing cargo damage and injury to personnel caused by shutdown, are sent out
It is raw, therefore, under the two combination, significantly increase the safety in utilization of lift work platform.
Description of the drawings
Fig. 1 is the structural schematic diagram according to lift work platform of the present invention；
Fig. 2 is the structural schematic diagram of rolling screen door in Fig. 1；
Fig. 3 is the partial structurtes schematic front view of rolling screen door in Fig. 1；
Fig. 4 anti-fall enlarged diagrams linked up with when being in hanging buckle in being 1；
Fig. 5 is anti-fall in being 1 to be linked up in enlarged diagram when being detached from cross bar；
Wherein：1, carrying platform frame；10, connecting seat；
A, rolling screen door；A1, doorframe；2, door curtain；3, actuator；30, wireline reel；4, bumper；40, filler strip；41, sealing plate；42, every
Plate；42a, air-flow through-hole；A, cavity；A1, first point of chamber；A2, second point of chamber；A3, third divide chamber；5, pressure sensor；
B, safe anti-falling falls mechanism；B2, anti-fall hook；B20, ontology；B21, hook portion；210, extension of module；211, side mould is hung
Block；B3, riser guide；B4, cross bar；B5, chain；B6, draw bar；B7, connector；71, the first strut；72, the second strut.
Specific implementation mode
The present invention will be further described in detail with specific embodiment below in conjunction with the accompanying drawings.
In order to make the above objects, features, and advantages of the present application more apparent, below in conjunction with the accompanying drawings to the application
Specific implementation mode be described in detail.Many details are elaborated in the following description in order to fully understand this Shen
Please.But the application can be much to implement different from other manner described here, those skilled in the art can be not
Similar improvement is done in the case of violating the application intension, therefore the application is not limited by following public specific embodiment.
In the description of the present application, 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 ... shown in the drawings or
Position relationship is merely for convenience of description the application and simplifies to describe, do not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore should not be understood as the limitation to the application.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply 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 at least one this feature.In the description of the present application, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In this application 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；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in this application can be understood as the case may be.
In this application unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
It should be noted that when element is referred to as " being fixed on " or " being set to " another element, it can be directly another
On one element or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be with
It is directly to another element or may be simultaneously present centering elements.Term as used herein " vertically ", " level
", "upper", "lower", "left", "right" and similar statement for illustrative purposes only, be not offered as being uniquely to implement
Mode.
Shown in Fig. 1 to Fig. 5, the present embodiment provides the low lift work platforms of accident rate comprising carrying platform frame
1, for drive the driving mechanism of 1 oscilaltion campaign of carrying platform frame, be correspondingly arranged at every layer inlet and outlet rolling screen door A, with
And safe anti-falling falls mechanism B, wherein driving mechanism includes hydraulic cylinder, drive sprocket and chain.
Specifically, rolling screen door A include be arranged on lift work platform framework and to every layer inlet and outlet position doorframe A1,
It is arranged at the top of doorframe A1 and actuator 3 that doorframe A1 is closed by the door curtain 2 that can furl and driving 2 drops down of door curtain,
It is wherein equipped in 2 bottom of door curtain and to form the bumper 4 of closed housing, be arranged on bumper 4 for monitoring air pressure in cavity
The pressure sensor 5 of variation and can receive pressure sensor 5 sent out pressure changing information PLC controller, wherein
PLC controller is connected with actuator 3, after PLC controller obtains 5 information of pressure sensor, is assigned under stopping to actuator 3
The instruction of row and reversing reset movement.
Specifically, the material of bumper 4 is rubber or plastics, and the section of bumper 4 is in opening up U-shaped.
Further, U-shaped width is equal to the thickness of door curtain 2, and the length of U-shaped vertical portion is bottom arc radius length
2 ~ 3 times.Here, defining U-shaped specific proportionate relationship, is conducive to the molding of cavity, while after extruding, is advantageous to
Then the reset of bumper 4 more can effectively form door curtain and protect.
Specifically, bumper 4 includes the filler strip 40 extended along 2 width direction of door curtain, for closing 40 both ends of filler strip
The partition board of the sealing plate 41 and setting of conjunction in the cavity, wherein 2 bottom of door curtain constitutes one after sealing plate 41 and filler strip 40 and expansion
The cavity a of a closure.After filler strip 40 and other objects contact, in cavity a air pressure change, pressure sensor 5 is by information
Feed back to PLC controller.
In this example, bumper further includes the partition board 42 being arranged in cavity a, and it is in multiple points of chambers that cavity a is separated by partition board 42,
And it is interconnected between two points of adjacent chambers.
Specifically, partition board 42 there are two pieces, it is uniformly distributed along the length direction of filler strip 40, cavity a is along length side
Divide chamber a3 to first point of chamber a1, second point of chamber a2 and third is divided into.
Meanwhile it being formed with air-flow through-hole 42a at the middle part of partition board 42, and therefore, first point of chamber a1, second point of chamber a2 and third
Be interconnected setting between point chamber a3 three.
Then, applicant explains, and on the one hand the sizing support of bumper is realized in the setting of partition board 42, reinforce Anti-knocking
Performance, while also allowing for the reset of bumper；On the other hand it is formed and divides chamber, once a certain point of chamber is squeezed, other points
The air pressure of chamber can change significantly, to improve the susceptibility of pressure sensor.
Can be that detection three is divided to any one in chamber or two, in this example, pressure as the setting of pressure sensor 5
Sensor 5 has two groups, and is correspondingly arranged at first point of chamber respectively and third is divided on chamber.Here, there is setting for two groups of pressure sensors 5
It sets, can mainly improve the sensitivity and accuracy of induction, prevent maloperation.
In addition, actuator 3 includes the wireline reel 30 for winding door curtain 2, the drive motor of forward and reverse rotation（It is not shown in figure）,
And the driving member for drive motor and wireline reel to be sequentially connected（It is not shown in figure）.
Here, although drive motor and driving member concrete structure are not disclosed on figure, for this field, both
Conventional equipment, as for example common drive sprocket of driving member and drive pulley.
Then, above-mentioned rolling screen door further includes the contact-making switch being connected with every layer of lighting circuit（It is not shown in figure）, when
When rolling screen door is opened, the contact-making switch connection circuit of respective layer, headlamp, which is in, illuminates state；It is corresponding after rolling screen door is closed
The contact-making switch open circuit of layer, headlamp are in OFF state.That is, the switch of rolling screen door is joined with lift work platform
Dynamic, Men Yikai, corresponding floor lamp just illuminates, and after door is closed 3-5s, corresponding floor lamp just extinguishes.
Then, applicant is it should be noted that in this application, when carrying platform reaches two layers by one layer, roller shutter
Door can automatically open, and when two layer operations effect shipment, press door close button, rolling screen door is automatically closed, platform downlink.If volume
Curtain door is not closed completely, then equipment cannot be run, and also ensures that interlocked with equipment in this way, improves safety in utilization, meanwhile,
In this example, although not being described in detail in place to whether rolling screen door is closed, its specific embodiment is this field
Common sense such as commonly touches mode, on doorframe and is respectively equipped with contact-making switch on door curtain, after two contact-making switches touch,
It indicates to be closed in place, wireline reel stop motion at this time also similarly is provided with contact-making switch in open position, passes through the side of contact
Formula judges whether to open in place.
Fall mechanism B as safe anti-falling comprising overturning be arranged 1 opposite sides of carrying platform frame anti-fall hook B2,
Be correspondingly arranged at it is anti-fall hook the opposite sides B2 and be spaced apart successively along the short transverse of riser guide B3 more cross bar Bs 4,
And the draw bar B6 for the hooked ends of anti-fall hook B2 to be connected with the chain B5 for connecting carrying platform frame 1, wherein
Safety zone is formed between per two adjacent cross bar Bs 4, when carrying platform 1 normal operation of frame, chain B5 applies draw bar B6
Stress, and draw anti-fall hook B2 keep the movement tendency into carrying platform frame 1 and far from safety zone；When chain B5 snaps,
Draw bar B6 loses limitation, and anti-fall hook B2 is moved to immediate safety zone and is hung on where the safety zone bottom
In cross bar B 4, to limit falling for carrying platform frame 1.
Anti-fall hook B2 include from one end by pivot rotate with carrying platform frame 1 the ontology B20 connecting, setting exist
The other end ontology B20 and the hook portion B21 for being formed with hanging buckle slot, wherein draw bar B6 are connected to chain B5 and hook portion B21
On, after draw bar B6 loses the active force of chain B5, anti-fall hook B2 is overturn under dead weight to safety zone.
Connecting seat 10 is equipped on carrying platform frame 1, the lower end of ontology B20 is arranged by pivoting in connecting seat 10
On.
In this example, to ensure that the stabilization and accuracy of hanging buckle, the section of used cross bar B 4 are square, hook portion B21
It is hung in cross bar B 4 from the hanging buckle slot being arranged downward.
Meanwhile hook portion B21 includes that extension of module 210 in ontology B20 far from pivot ends is arranged, is arranged in extension die
In 210 outer end of block and the extension side module 211 extended downwardly, wherein extension of module 210 and extension side module 211 and ontology B20
The side in portion constitutes hanging buckle slot, and when hook portion B21 is hung in cross bar B 4, hook portion B21 is engaged in cross bar from hanging buckle slot
On B4.The benefit being arranged in this way：It one, can be in the moment fallen, by cross bar and the contact of body upper part side and guiding, gradually
So that cross bar enters in hanging buckle slot, hanging buckle is completed；Two, pass through the occlusion of hanging buckle slot and cross bar so that the carrying after hanging buckle is flat
Rack is stablized relatively, reduces and shakes.
In this example, hook portion B21 and ontology B20 are integrally formed setting.
Then, in order to facilitate manual manipulation, draw bar B6 and chain B5 need not be removed, as long as draw bar B6 is
Telescopic rod.Meanwhile applicant it should be noted that：Only under special circumstances（For example it overhauls）, draw bar B6 can just stretch
Contracting, under normal operating condition, the length of draw bar B6 is constant.
Specifically, the type of drive of telescopic rod is electronic, pneumatically or hydraulically.Here, applicant explains, using flexible
The purpose of bar is：In normal service, the overturning of anti-fall hook can be realized by the adjusting of telescopic rod, thus by carrying platform
It is located on the cross bar of setting, it is very convenient.
Meanwhile it further includes for the hooked ends of anti-fall hook B2 are opposite with carrying platform frame 1 that safe anti-falling, which falls mechanism,
The connector B7 connect, wherein connector B7 with anti-fall hook B2 overturn and open or folding be arranged.
In this example, connector B7 includes that can open from one end rotation connection and in 0 ~ 180 ° or folding first is supportted
Bar 71 and the second strut 72, wherein the other end of the first strut 71 and the second strut 72 rotate respectively be connected to hooked ends
With on carrying platform frame 1, when anti-fall hook B2 is overturn to safety zone, the first strut 71 and the second strut 72 gradually strut, directly
After being hung on cross bar B 4 to anti-fall hook B2, the first strut 71 and the second strut 72 are on the same line.That is, working as
When anti-fall hook B2 coordinates with cross bar B 4, the first strut 71 and the second strut 72 form a supporting rod, to prevent locking hook.
When anti-fall hook B2 is in outside safety zone, at this point, the angle formed between the first strut 71 and the second strut 72
120 °, and run-on point is located at the top with 1 tie point of hook portion 21 and carrying platform frame, then, carrying platform frame 1 is in safety
Working condition, this when, draw bar B6 and connector B7 are equal to the torque of anti-fall hook B2 the gravity power of anti-fall hook B2
Square, therefore it is in equilibrium state, once the ineffective power of draw bar B6, anti-fall hook B2 is with regard to disequilibrium, and in the effect of gravity
Under, it is overturn to outside carrying platform frame 1, to realize hanging buckle fall arrest.
In addition, in this example, it is arranged in parallel between more cross bar Bs 4, and positioned at the 4 symmetrical setting of cross bar B of both sides.
Meanwhile the riser guide B3 positioned at the same side has two, more cross bar Bs 4 are equal along riser guide B3 length directions
Even distribution, and it is located in the outside of two riser guide B3 of homonymy.In short, the effect of cross bar B 4 can not only be with anti-fall hook
B2 coordinates to prevent falling for carrying platform, but also can reinforce riser guide B3 firmness, and then it is flat to simplify lift work
The structure of platform.
In conclusion falling mechanism using above-mentioned safe anti-falling, has the following advantages：
1, after chain is broken, anti-fall hook can be overturn from trend safety zone, and hanging buckle is in corresponding safety zone bottom
On cross bar, to prevent falling for carrying platform；
2, it when needing conventional maintenance or maintenance, by the adjusting of telescopic rod, realizes the change of the state of anti-fall hook, also can
Carrying platform is located in the safety zone of setting；
3, the positioning of anti-fall hook is realized using the principle of equalising torque, and after balance is destroyed, by the setting of hanging buckle slot, by
Cross bar is imported in hanging buckle slot and is engaged by step, to limit the shaking of carrying platform, that is to say, that even if chain breakage occurs
Afterwards, the collision on carrying platform between cargo will not be caused.
The present invention is described in detail above, its object is to allow the personage for being familiar with this field technology that can understand this
The content of invention is simultaneously implemented, and it is not intended to limit the scope of the present invention, all Spirit Essence institutes according to the present invention
The equivalent change or modification of work should all cover within the scope of the present invention.
Claims (10)
1. a kind of lift work platform that accident rate is low comprising carrying platform frame, for driving the carrying platform frame or more
The driving mechanism of elevating movement and the rolling screen door for being correspondingly arranged at every layer of inlet and outlet, wherein the driving mechanism includes liquid
Compressing cylinder, drive sprocket and chain, the rolling screen door include being arranged import and export the doorframe of position at every layer, be arranged described
The actuator that the doorframe is closed by doorframe top and the door curtain and the driving door curtain drops down that can furl, it is special
Sign is：It is equipped in the door curtain bottom and to form the bumper of closed housing, be arranged on the bumper for monitoring
The pressure sensor of air pressure change and the sent out pressure changing information of the pressure sensor can be received in the cavity
PLC controller, wherein the PLC controller is connected with the actuator, when the PLC controller obtains the pressure
After sensor information, the instruction for stopping downlink and reversing reset and moving is assigned to the actuator；
The lift work platform further includes that safe anti-falling falls mechanism, and it includes that overturning setting is being held that the safe anti-falling, which falls mechanism,
The anti-fall hook of carrying platform frame opposite sides is correspondingly arranged at the anti-fall hook opposite side and along the height side of riser guide
To more cross bars being spaced apart successively and for by the hooked ends of the anti-fall hook with connect the carrying platform frame
The draw bar that is connected of chain, wherein safety zone is formed between per two adjacent cross bars, when the carrying platform frame
When normal operation, the chain applies stress to the draw bar, and draws the anti-fall hook and keep flat to the carrying
Movement tendency in rack and far from the safety zone；When the chain snaps, the draw bar loses limitation, described
Anti-fall link up with moves to immediate safety zone and is hung on the cross bar where the safety zone bottom, to limit
State falling for carrying platform frame.
2. the low lift work platform of accident rate according to claim 1, it is characterised in that：The material of the bumper
For rubber or plastics, and include the filler strip extended along the door curtain width direction, for being closed the filler strip both ends
Sealing plate, wherein the door curtain bottom described in when the sealing plate and the filler strip and expansion constitutes the cavity of a closure, when described
After filler strip is contacted with other objects, in the cavity air pressure change, the pressure sensor feeds back to information described
PLC controller.
3. the low lift work platform of accident rate according to claim 2, it is characterised in that：The bumper further includes
Partition board in the cavity is set, and it is in multiple points of chambers that the cavity is separated by the partition board, and divides chamber described in adjacent two
Between be interconnected.
4. the low lift work platform of accident rate according to claim 3, it is characterised in that：The partition board has two pieces,
It is uniformly distributed along the length direction of the filler strip, the cavity is divided into first point of chamber, second along length direction
Divide chamber and third that chamber, the pressure sensor is divided there are two groups, and is correspondingly arranged at first point of chamber and the third respectively
Divide on chamber.
5. the low lift work platform of accident rate according to claim 1, it is characterised in that：The section of the bumper
In opening up U-shaped, wherein the U-shaped width is equal to the thickness of door curtain, and the length of U-shaped vertical portion is bottom arc
2 ~ 3 times of radius length.
6. the low lift work platform of accident rate according to claim 1, it is characterised in that：The rolling screen door further includes
The contact-making switch being connected with every layer of lighting circuit, when the rolling screen door is opened, the contact-making switch connection electricity of respective layer
Road, headlamp, which is in, illuminates state；After the rolling screen door is closed, the contact-making switch open circuit of respective layer, headlamp is in
OFF state.
7. the low lift work platform of accident rate according to claim 1, it is characterised in that：The anti-fall hook includes
The ontology connecting, setting are rotated in described ontology the other end and formation with the carrying platform frame by pivot from one end
There is the hook portion of hanging buckle slot, wherein the draw bar is connected in the chain and the hook portion, when the draw bar
After the active force for losing the chain, the anti-fall hook is overturn under dead weight to the safety zone.
8. the low lift work platform of accident rate according to claim 7, it is characterised in that：The section of the cross bar is in side
Shape, the hook portion are hung on the cross bar from the hanging buckle slot being arranged downward, and the hook portion includes being arranged in institute
It states extension of module of the ontology far from the pivot ends, be arranged in the extension of module outer end and the extension side mould that extends downwardly
Block, wherein the extension of module and the side composition hanging buckle slot for hanging side module and the body upper part, and when extension
When hook portion is hung on the cross bar, the hook portion is engaged on the cross bar from the hanging buckle slot.
9. the low lift work platform of accident rate according to claim 1, it is characterised in that：The draw bar is flexible
Bar.
10. the low lift work platform of accident rate according to claim 1, it is characterised in that：The safe anti-falling is fallen
Mechanism further includes the connector for the hooked ends of the anti-fall hook and the carrying platform frame to be connected to each other, wherein described
Connector opened or folding is arranged as the anti-fall hook is overturn, and the connector includes being rotatablely connected from one end
And can open within the scope of 0 ~ 180 ° or the first strut and the second strut of folding, wherein first strut and the second strut
Being connected on the hooked ends and the carrying platform frame of rotating respectively of the other end, anti-fall linked up with to described when described
Safety zone overturn when, first strut and the second strut gradually strut, until it is described it is anti-fall be hung on the cross bar after,
First strut and the second strut are on the same line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811014762.1A CN108792900B (en) | 2018-08-31 | 2018-08-31 | Lifting operation platform with low accident rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811014762.1A CN108792900B (en) | 2018-08-31 | 2018-08-31 | Lifting operation platform with low accident rate |
Publications (2)
| Publication Number | Publication Date |
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| CN108792900A true CN108792900A (en) | 2018-11-13 |
| CN108792900B CN108792900B (en) | 2024-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811014762.1A Active CN108792900B (en) | 2018-08-31 | 2018-08-31 | Lifting operation platform with low accident rate |
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| Country | Link |
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| CN (1) | CN108792900B (en) |
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| CN108821046A (en) * | 2018-09-05 | 2018-11-16 | 苏州市康鼎升降机械有限公司 | Guide tracked lift work platform |
| CN109854134A (en) * | 2019-03-30 | 2019-06-07 | 中国葛洲坝集团机械船舶有限公司 | A kind of workshop automatic lifting gate |
| CN113336035A (en) * | 2021-06-11 | 2021-09-03 | 中集物联科技有限公司 | Mobile device |
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| Publication number | Publication date |
|---|---|
| CN108792900B (en) | 2024-04-23 |
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