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.