CN207243357U - A kind of lifting platform - Google Patents
A kind of lifting platform Download PDFInfo
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- CN207243357U CN207243357U CN201721024186.XU CN201721024186U CN207243357U CN 207243357 U CN207243357 U CN 207243357U CN 201721024186 U CN201721024186 U CN 201721024186U CN 207243357 U CN207243357 U CN 207243357U
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- deceleration
- hydraulic
- hydraulic cylinder
- hold
- scissor arms
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- 239000010720 hydraulic oil Substances 0.000 claims description 18
- 239000003921 oil Substances 0.000 claims description 10
- 239000002828 fuel tank Substances 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 4
- 230000007423 decrease Effects 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 8
- 239000012530 fluid Substances 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a kind of lifting platform, is made of upper mounting plate, scissor arms, hydraulic cylinder and upper hold-down support, lower platform, deceleration device and hydraulic power control system；The deceleration device includes deceleration hydraulic system straight check valve spool, can be rotated around centre of sphere axis in deceleration hydraulic system main valve body, by varying the backhaul distance for the hydraulic fluid flow rate control hydraulic cylinder for flowing through ball valve, so as to change the speed of lifting platform decline；The utility model moves down the deceleration rocking handle touched on deceleration device by hold-down support, and the hydraulic fluid flow rate flowed through inside control device, realizes that the progressively drop of lifting platform is stopped；The utility model is simple in structure, it is highly reliable, the degree of automation is high, drop, which stops effect duration, to be realized by the regulating member of deceleration device, can be applied to different carrying objects, solve personnel to lifting platform when riding the comfort of decline stage and precision equipment, dangerous material lifting platform carried have the similar desired technical problem such as handle with care.
Description
Technical field
It the utility model is related to lifting device field, and in particular to a kind of hydraulic elevator platform declined safely.
Background technology
Hydraulic elevator platform can be used for the working at height such as the equipment installation, maintenance, cleaning of various piles, it may also be used for car
Between material or equipment and instrument etc. vertical transport.There are many improvement in the various functions for realize hydraulic elevator platform at present, such as
The hydraulic pump that utility model patent 86201805.6 is proposed as lifting platform, which provides accumulator, makes it have energy and labour saving effect etc..
Since lifting platform is particularly when decrease speed is too fast in lifting, traditional rapidly drop stops that the personnel of carrying can be brought riding
Discomfort makes precision instrument and equipment bear greater impact load.Utility model patent 200920284835.9 is declining lifting platform
Present in hidden danger have made some improvements：Rack-shaped height lockable mechanism is installed on hydraulic lift, prevents lifting platform
Under the effect of gravity rapid descent and cause the generation of peril.The device safely and smoothly declines for lifting platform have been provided
The solution of full mechanical system, but since the precision that speed is adjusted is relatively low, light and slow drop can not be realized in the final stage of decline
Stop.Utility model patent 201320264457.4 discloses a kind of lifting of the surrounding installation spring vibration damper in lower platform
Platform, for reducing the impact force during lifting platform drops to low side.The program is simple in structure, workable, but due to drop
Stop quantity performance and installation site of the effect depending on spring used, debugging process is excessively complicated, additionally due to loading unloads
Follow-up safety measure is also needed to afterwards ensures that the stop place of hoistable platform is stablized.Since hydraulic elevator platform by own wt is
Power, which extrudes the hydraulic oil of cylinder lower, realizes decline, and the velocity of discharge of hydraulic oil determines that lifting platform declines in hydraulic cylinder
Speed, at present by the way that electromagnetic throttle valve can be installed on the oil inlet pipe of fuel tank, adjust hydraulic fluid flow rate manually if necessary
Size changes decrease speed, but still can not realize that light and slow drop is stopped when unattended.
Utility model content
It is more this to solve the problems, such as, the purpose of this utility model is to provide be a kind of lifting with deceleration device
Platform.The deceleration device is designed mainly for the design feature of fork hydraulic lifting platform, and installation site is located on hydraulic cylinder
The lower section of hold-down support, easy to lifting platform, when declining, hold-down support moves down and touches deceleration rocking handle with reality on hydraulic cylinder
Now slowly drop is stopped, so that the above problem is improved.
To achieve these goals, the utility model embodiment adopts the following technical scheme that realization：
A kind of lifting platform, by hold-down support under hold-down support, hydraulic cylinder on upper mounting plate, scissor arms, hydraulic cylinder and hydraulic cylinder,
Lower platform, deceleration device and hydraulic power control system are formed；The scissor arms of upper mounting plate and lower section are hinged, and scissor arms are divided into
Top and the bottom, upper scissor arms are hinged with lower scissor arms, and hydraulic cylinder left end is hinged with hold-down support on hydraulic cylinder, hydraulic cylinder right end with
Hold-down support is hinged under hydraulic cylinder, and hydraulic cylinder left end is hinged with hold-down support on hydraulic cylinder；
Hold-down support is welded on scissor arms bottom left section on the hydraulic cylinder；
Hold-down support is welded on lower scissor arms lower right-most portion under the hydraulic cylinder；
The upper scissor arms are hinged with upper mounting plate and lower platform respectively with lower scissor arms left end, and the upper scissor arms are cut with
Yoke right end is respectively equipped with rolling bearing, rolls and connects with upper mounting plate and lower platform inner bottom surface；
The hydraulic power control system includes fuel tank, hydraulic oil, motor, hydraulic pump, check valve, filter, unidirectional
Solenoid valve, speed governing valve；
The hydraulic power control system is placed on the left of lower platform, is provided oil pressure for hydraulic cylinder by conduit, is made hydraulic cylinder
Promote hold-down support on hydraulic cylinder to move upwards, and drive and carry out relative motion between adjacent scissor arms；The deceleration device is put
On the left of the lower platform, when hydraulic elevator platform declines, on the hydraulic cylinder hold-down support can be moved down with upper mounting plate and with
The roller extruding contact of deceleration device；
The deceleration device hydraulic system of the deceleration device includes deceleration hydraulic system straight check valve and to slow down
Hydraulic system Mechanical course ball valve and conduit；
The deceleration hydraulic system includes deceleration hydraulic system Mechanical course ball valve core, described with Mechanical course ball valve
Deceleration hydraulic system includes deceleration hydraulic system straight check valve spool with straight check valve；
The deceleration device main body includes roller, deceleration rocking handle, deceleration hydraulic system main valve body, supporting rod, spool position
Adjustment axis, clamp nut, spring；
The deceleration device movable member is roller and deceleration rocking handle, and the axle center of wherein roller is fixedly connected deceleration rocking handle
One end, be fixedly connected with spool position adjustment axis on the deceleration rocking handle other end, sequentially pass through spring, deceleration hydraulic system main valve
The deceleration hydraulic system Mechanical course ball valve core of body, deceleration hydraulic system the Mechanical course ball valve core and spool position
Adjustment axis is put to be fixedly connected；
The spool position adjustment axis has the spiral shell of circular end face close to deceleration hydraulic system main valve body end face side for surrounding
Spool position is adjusted shaft locking by line axis, clamp nut；
The deceleration hydraulic system Mechanical course ball valve core can be around centre of sphere axis in deceleration hydraulic system main valve body inward turning
Turn；
The deceleration hydraulic system main valve body is used straight-through by deceleration hydraulic system Mechanical course ball valve, deceleration hydraulic system
Formula check valve is in parallel to be formed, the main valve body by supporting rod be installed on lifting platform lower platform and hydraulic power control system it
Between, hydraulic oil is placed in from the pipeline that hydraulic pump flows to hydraulic cylinder；
The scissor arms are former and later two, and hold-down support is respectively one horizontal under hold-down support and hydraulic cylinder wherein on hydraulic cylinder
Beam, is fixedly connected with former and later two scissor arms；
The hydraulic cylinder is two, is respectively placed in fixed under the upper hold-down support and hydraulic cylinder between the front and rear scissor arms
On bearing.
The utility model is realized by the following course of work：
During lifting platform decline, since the gravity of upper mounting plate oppresses hydraulic cylinder backhaul, it is forced out hydraulic oil.It will subtract
Speed variator is placed on hydraulic cylinder below hold-down support, and the Mechanical course ball valve on deceleration device is connected with hydraulic cylinder, is passed through
Change the backhaul distance for the hydraulic fluid flow rate control hydraulic cylinder for flowing through deceleration hydraulic system Mechanical course ball valve, so as to change liter
The speed that platform declines drops.
Commonly used lifting platform is substantially by fixed branch under hold-down support, hydraulic cylinder on upper mounting plate, scissor arms, hydraulic cylinder
Seat, hydraulic cylinder, lower platform and hydraulic power control system are formed.Hydraulic power control system provides oil pressure for hydraulic cylinder, makes
Hold-down support moves upwards on Hydraulic Cylinder, and drives and carry out relative motion between adjacent scissor arms, so as to fulfill upper mounting plate
Rising.On the contrary, the oil pressure in hydraulic cylinder is returned in hydraulic power control system by hoistable platform and the gravity of loading
Fuel tank can realize the decline of lifting platform, until between adjacent scissor arms no longer relative motion when upper mounting plate stop in extreme lower position
Decline.
Lifting platform of the present invention another carry in addition to said structure declines deceleration device, it can be achieved that upper mounting plate is declining
When slowly drop stop.The main body of its deceleration device is by roller, deceleration rocking handle, deceleration hydraulic system main valve body, supporting rod, spool position
Adjustment axis, clamp nut, spring composition.Wherein deceleration hydraulic system main valve body by Mechanical course ball valve, straight check valve simultaneously
Connection is formed.The main valve body is installed on by supporting rod on the lower platform of lifting platform, is placed in hydraulic oil and is flowed to hydraulic pressure from hydraulic pump
On the pipeline of cylinder.The movable member for declining deceleration device is roller and deceleration rocking handle, and the axle center of wherein roller is connected to deceleration and shakes
One end of handle, the other end are connected to spool position adjustment axis, and the distance which declines hold-down support on hydraulic cylinder, passes through rolling
Circular motion of the wheel again through deceleration rocking handle, which passes to spool position adjustment axis, makes it accordingly rotate.In addition, spool position is adjusted
Axis is attached with deceleration hydraulic system with Mechanical course ball valve core, is adjusted by the axis and is flowed through deceleration hydraulic system machinery
The hydraulic fluid flow rate of control ball valve realizes the adjustable purpose of lifting platform decrease speed, and the above mechanism constitutes hydraulic elevator platform
Decline deceleration device.
The technical solution of the utility model at least has the following advantages that and beneficial effect：
1. the utility model is by above device, by lifting platform hold-down support with lower scissor arms move down and with
Deceleration hydraulic system straight check valve valve core rotation is controlled during the roller extruding contact of deceleration device, reduces hydraulic fluid flow rate
Change the device of lifting platform decrease speed, the apparatus structure is simple, it is easy to accomplish, it is highly reliable, and the degree of automation is high, can be
It is safe to use when unattended；
2. stopping effect duration due to drop to realize by the regulating member of deceleration device, different carryings pair can be applied to
As, particularly solve personnel to lifting platform when riding the comfort of decline stage and precision equipment, dangerous material to lifting platform
Carry to have to handle with care and wait the technical problem of similar requirement；
3. the utility model realizes lifting platform hydraulic oil in decline and uphill process by above device and is entirely filling
Circulation in putting.
4. the utility model is by acting on the deceleration rocking handle on deceleration device, the hydraulic pressure oil stream flowed through inside control device
Amount, realizes that the progressively drop of lifting platform is stopped；The utility model is simple in structure, highly reliable, and the degree of automation is high.
Brief description of the drawings
Fig. 1 is hydraulic elevator platform overall diagram, wherein being under hydraulic cylinder and upper hold-down support with the figure shown in double dot dash line
Drop to the position contacted with deceleration device roller；
Fig. 2 is hydraulic circuit figure；
Fig. 3 is deceleration device outline drawing, and (a) is front elevation, and (b) is side view；
Fig. 4 is the fundamental diagram of deceleration device,
(a) when being begun to decline for lifting platform (the roller end of deceleration rocking handle is in extreme higher position)；
(b) it is lifting platform close to drop stopping time (the roller end of deceleration rocking handle close to extreme lower position)；
(c) when restarting to rise for lifting platform (the roller end of deceleration rocking handle is in extreme lower position).
Wherein, the corresponding parts title of reference numeral is as follows：
Wherein, 1 it is upper mounting plate, 2 be scissor arms, 3 be hold-down support on hydraulic cylinder, 4 be hold-down support under hydraulic cylinder, 5 is
Hydraulic cylinder, 6 be lower platform, 7 be deceleration device, 8 be hydraulic power control system, 9 be fuel tank, 10 be hydraulic oil, 11 be electronic
Machine, 12 be hydraulic pump, 13 be check valve, 14 be filter, 15 be conduit, 16 be deceleration device hydraulic system, 17 be deceleration liquid
Pressure system straight check valve, 18 be deceleration hydraulic system Mechanical course ball valve, 19 Unidirectional solenoid valves, 20 be speed governing valve,
21 it is roller, 22 be deceleration rocking handle, 23 be deceleration hydraulic system main valve body, 24 be supporting rod, 25 is spool position adjustment axis, 26
For clamp nut, 27 be spring, 28 be deceleration hydraulic system straight check valve spool, 29 be deceleration hydraulic system machinery
Control ball valve core.
Embodiment
The utility model is illustrated with specific embodiment below in conjunction with the accompanying drawings.
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with attached drawing, to this
Technical solution in utility model embodiment carries out clear, complete description.Obviously, described embodiment is the utility model
Part of the embodiment, instead of all the embodiments.
Therefore, this claimed practicality is not intended to limit newly to the detailed description of the embodiment of the utility model below
The scope of type, but it is merely representative of the section Example of the utility model.It is general based on the embodiment in the utility model, this area
Logical technical staff all other embodiments obtained without creative efforts, belong to the utility model guarantor
The scope of shield.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
, it is necessary to explanation in the description of the utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer ", " back side " or position relationship are to be closed based on orientation shown in the drawings or position
System, or the utility model product using when the orientation usually put or position relationship.This kind of term, which is for only for ease of, to be retouched
State the utility model and simplify and describe, rather than instruction or imply signified device or element must have specific orientation, with
Specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.
It should also be noted that, in the description of the utility model, unless otherwise clearly defined and limited, term " is set
Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or it is integrally connected；Can mechanically connect or be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can is the connection inside two elements.To those skilled in the art, can understand as the case may be
Concrete meaning of the above-mentioned term in the utility model.
A kind of lifting platform, by fixed under hold-down support 3, hydraulic cylinder on upper mounting plate 1, scissor arms 2, hydraulic cylinder 5 and hydraulic cylinder
Bearing 4, lower platform 6, deceleration device 7 and hydraulic power control system 8 are formed；Upper mounting plate 1 and the scissor arms 2 of lower section are hinged,
Scissor arms 2 are divided to be hinged for top and the bottom, upper scissor arms with lower scissor arms, and 5 left end of hydraulic cylinder is cut with scissors with hold-down support on hydraulic cylinder 3
Connect, 5 right end of hydraulic cylinder is hinged with hold-down support 5 under hydraulic cylinder, and 5 left end of hydraulic cylinder is hinged with hold-down support 3 on hydraulic cylinder；
Hold-down support 3 is welded on scissor arms bottom left section on the hydraulic cylinder；
Hold-down support 5 is welded on lower scissor arms lower right-most portion under the hydraulic cylinder；
The upper scissor arms are hinged with upper mounting plate 1 and lower platform 6 respectively with lower scissor arms left end, and the upper scissor arms are with
Scissor arms right end is respectively equipped with rolling bearing, rolls and connects with upper mounting plate 1 and 6 inner bottom surface of lower platform；
As shown in Fig. 2, the hydraulic power control system 8 include fuel tank 9, hydraulic oil 10, motor 11, hydraulic pump 12,
Check valve 13, filter 14, Unidirectional solenoid valve 20, speed governing valve 20；
The hydraulic power control system 8 is placed in the left side of lower platform 6, provides oil pressure for hydraulic cylinder 5 by conduit 15, makes liquid
Cylinder pressure 5 promotes hold-down support 3 on hydraulic cylinder to move upwards, and drives and carry out relative motion between adjacent scissor arms 2；The deceleration
Device 7 is placed in the left side of lower platform 6, when hydraulic elevator platform declines, on the hydraulic cylinder hold-down support 3 can with upper mounting plate 1 to
Lower movement is simultaneously contacted with the extruding of roller 21 of deceleration device 7；
The deceleration device hydraulic system 16 of the deceleration device 7 includes deceleration hydraulic system straight check valve 17 and is
Deceleration hydraulic system Mechanical course ball valve 18 and conduit 15；
The deceleration hydraulic system with Mechanical course ball valve 18 include deceleration hydraulic system Mechanical course ball valve core 29,
The deceleration hydraulic system includes deceleration hydraulic system straight check valve spool 28 with straight check valve 17；
As shown in figure 3,7 main body of deceleration device includes roller 21, deceleration rocking handle 22, deceleration hydraulic system main valve body
23rd, supporting rod 24, spool position adjustment axis 25, clamp nut 26, spring 27；
As shown in figure 4, axle center of 7 movable member of deceleration device for roller 21 and deceleration rocking handle 22, wherein roller 21
One end of deceleration rocking handle 22 is fixedly connected, is fixedly connected with spool position adjustment axis 25 on 22 other end of deceleration rocking handle, successively
Through spring 27, the deceleration hydraulic system Mechanical course ball valve core 29 of deceleration hydraulic system main valve body 23, the deceleration liquid
Pressure system Mechanical course ball valve core 29 is fixedly connected with spool position adjustment axis 25；
The spool position adjustment axis 25 has circular end face close to 23 end face side of deceleration hydraulic system main valve body for surrounding
Thread spindle, clamp nut 26 locks spool position adjustment axis 25；
The deceleration hydraulic system Mechanical course ball valve core 29 can be around centre of sphere axis in deceleration hydraulic system main valve body 23
Interior rotation；
The deceleration hydraulic system main valve body 23 is used by deceleration hydraulic system Mechanical course ball valve 18, deceleration hydraulic system
Straight check valve 17 is in parallel to be formed, and the lower platform 6 that the main valve body 22 is installed on lifting platform by supporting rod 24 is moved with hydraulic pressure
Between Force control system 8, hydraulic oil 10 is placed in from the pipeline that hydraulic pump 12 flows to hydraulic cylinder 5；
The utility model embodiment provides the first possible embodiment, and the scissor arms 2 are former and later two, wherein
Hold-down support 4 is respectively former and later two under hold-down support 3 and hydraulic cylinder on hydraulic cylinder, is respectively placed in front and rear two scissor arms, adjacent
There is crossbeam connection between hold-down support；
The hydraulic cylinder 5 is two, is placed on the crossbeam between the front and rear scissor arms.
The utility model embodiment provides second of possible embodiment, and the scissor arms 2 are former and later two, wherein
Hold-down support 5 is respectively a crossbeam under hold-down support 3 and hydraulic cylinder on hydraulic cylinder, is fixedly connected with former and later two scissor arms；
The hydraulic cylinder 5 is two, is respectively placed in solid under the upper hold-down support 3 and hydraulic cylinder between the front and rear scissor arms
Determine on bearing 5.
The specific work process of deceleration device can be described as：As shown in Fig. 2, in the ascent stage of lifting platform, motor 11
Hydraulic pump 12 is driven hydraulic oil 10 is flowed through check valve 13, filter 14 and deceleration device 7 to 5 fuel feeding of hydraulic cylinder.Subtract at this time
Fast hydraulic system straight check valve 17 is opened, and the proper flow of hydraulic oil 10 does not influence the rising of lifting platform.In lifting platform
Decline stage, due to upper mounting plate 1 and the gravity of loading, hydraulic oil 10 is forced out hydraulic cylinder 5, reverse flow oil return box 9 and way
Through deceleration device 7.The working status of deceleration device 7 is closed for deceleration hydraulic system straight check valve 17 at this time, hydraulic oil
10 can flow through Mechanical course ball valve 18 flows back to fuel tank 9, Unidirectional solenoid valve 19 and speed governing through Unidirectional solenoid valve 19 and speed governing valve 20 again
Valve 20 and with play the role of oil return and set lifting platform decrease speed.Hereafter, when hydraulic elevator platform is lifted again,
It is closed in initial period deceleration hydraulic system Mechanical course ball valve 18, deceleration hydraulic system straight check valve
17 reopen, and repeat previous lifting work process.
With operation principle difference as shown in Figure 3 and Figure 4,21 end of roller of deceleration rocking handle 22 connects the mechanical structure of deceleration device
Then 21 axle center of roller, the other end are connected to the Mechanical course ball valve core 28 on deceleration hydraulic system main valve body 23.Lifting
While platform declines, hold-down support 3 moves downward and when close to most bottom position, starts to touch deceleration rocking handle 22 on hydraulic cylinder
The roller 21 of extreme higher position, makes rocking handle 22 drive Mechanical course ball valve core 28 to be rotated.Due to flowing to the hydraulic pressure of hydraulic cylinder 9
Oil 10 flows through deceleration hydraulic system straight check valve spool 28, and flow is gradually reduced with 28 rotating angle of spool, when solid
When determining under bearing 3 and dropping to most bottom position, when also dropping to extreme lower position with 21 end of roller of its deceleration rocking handle 22 for keeping contacting
Deceleration hydraulic system Mechanical course ball valve 18 completely closes, hydraulic oil 10 stop it is fuel-displaced from hydraulic cylinder 9, cause lift upper mounting plate
1 stops declining and reaching extreme lower position.When lifting platform is again started up rising, deceleration hydraulic system straight check valve spool
29 move horizontally the unlatching for implementing check valve 17 under certain 10 flowing pressure of hydraulic oil, so that hydraulic cylinder 5 is promoted because of oiling
While upper hold-down support 3 moves up, the deceleration rocking handle 22 contacted with bearing holding is under the action of 27 restoring force of spring
Extreme higher position is gradually returned to from extreme lower position.In addition, to start from deceleration hydraulic system through type unidirectional for the action of deceleration device 7
The rotation of valve core 28, effect duration are related with the starting rotation position of the spool 28.Due to deceleration hydraulic system through type
Inner elements of check valve 28 is connected with spool position adjustment axis 25, manually adjusts the angle of the axis 25, and with clamp nut 26 by its position
Fixation is put, can be used to adjust the length of lifting platform decelerating effect time.
The utility model is realizes that the slow function of stopping of the decline of lifting platform provides a new technical side with human oriented design
Case, major design reduce hydraulic fluid flow rate and change lifting platform decrease speed by mechanical ball-handling valve, straight check valve
Device, the apparatus structure are simple, it is easy to accomplish, it is highly reliable, and the degree of automation is high, can be safe to use when unattended,
Stop effect duration due to drop to realize by the regulating member of deceleration device, can be applied to different carrying objects, particularly
Solve personnel to lifting platform when riding the comfort of decline stage and precision equipment, dangerous material lifting platform is carried to have and is gently taken
The similar desired technical problem such as put down gently.
Embodiments above is merely to illustrate and unrestricted the technical solution of the utility model.The utility model essence is not departed from
Any modification or partial replacement of god, should all cover among the right of the utility model.
Claims (1)
- A kind of 1. lifting platform, it is characterised in that：By under hold-down support, hydraulic cylinder on upper mounting plate, scissor arms, hydraulic cylinder and hydraulic cylinder Hold-down support, lower platform, deceleration device and hydraulic power control system are formed；The scissor arms of upper mounting plate and lower section are hinged, and are cut Yoke is divided into top and the bottom, and upper scissor arms are hinged with lower scissor arms, and hydraulic cylinder left end is hinged with hold-down support on hydraulic cylinder, hydraulic pressure Cylinder right end is hinged with hold-down support under hydraulic cylinder；Hold-down support is welded on scissor arms bottom left section on the hydraulic cylinder；Hold-down support is welded on lower scissor arms lower right-most portion under the hydraulic cylinder；The upper scissor arms are hinged with upper mounting plate and lower platform respectively with lower scissor arms left end, the upper scissor arms and lower scissor arms Right end is respectively equipped with rolling bearing, rolls and connects with upper mounting plate and lower platform inner bottom surface；The hydraulic power control system includes fuel tank, hydraulic oil, motor, hydraulic pump, check valve, filter, unidirectional electromagnetism Valve, speed governing valve；The hydraulic power control system is placed on the left of lower platform, is provided oil pressure for hydraulic cylinder by conduit, is made Hydraulic Cylinder Hold-down support moves upwards on hydraulic cylinder, and drives and carry out relative motion between adjacent scissor arms；The deceleration device is placed in down Platform sinistral, when hydraulic elevator platform declines, on the hydraulic cylinder hold-down support can be moved down with upper mounting plate and with deceleration The roller extruding contact of device；The deceleration device hydraulic system of the deceleration device includes deceleration hydraulic system straight check valve and is deceleration hydraulic pressure System Mechanical course ball valve and conduit；The deceleration hydraulic system includes deceleration hydraulic system Mechanical course ball valve core, the deceleration with Mechanical course ball valve Hydraulic system includes deceleration hydraulic system straight check valve spool with straight check valve；The deceleration device main body includes roller, deceleration rocking handle, deceleration hydraulic system main valve body, supporting rod, spool position and adjusts Axis, clamp nut, spring；The deceleration device movable member is roller and deceleration rocking handle, and the axle center of wherein roller is fixedly connected the one of deceleration rocking handle End, be fixedly connected with spool position adjustment axis on the deceleration rocking handle other end, sequentially passes through spring, deceleration hydraulic system main valve body Deceleration hydraulic system Mechanical course ball valve core, deceleration hydraulic system the Mechanical course ball valve core and spool position tune Nodal axisn is fixedly connected；The spool position adjustment axis has the thread spindle of circular end face close to deceleration hydraulic system main valve body end face side for surrounding, Spool position is adjusted shaft locking by clamp nut；The deceleration hydraulic system can be rotated with Mechanical course ball valve core around centre of sphere axis in deceleration hydraulic system main valve body；The deceleration hydraulic system main valve body is by deceleration hydraulic system Mechanical course ball valve, deceleration hydraulic system through type list Being formed to valve is in parallel, the main valve body is installed between lower platform and the hydraulic power control system of lifting platform by supporting rod, Hydraulic oil is placed in from the pipeline that hydraulic pump flows to hydraulic cylinder；The scissor arms are former and later two, and hold-down support is respectively a crossbeam under hold-down support and hydraulic cylinder wherein on hydraulic cylinder, It is fixedly connected with former and later two scissor arms；The hydraulic cylinder is two, is respectively placed in hold-down support under the upper hold-down support and hydraulic cylinder between the front and rear scissor arms On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721024186.XU CN207243357U (en) | 2017-08-16 | 2017-08-16 | A kind of lifting platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721024186.XU CN207243357U (en) | 2017-08-16 | 2017-08-16 | A kind of lifting platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207243357U true CN207243357U (en) | 2018-04-17 |
Family
ID=61881069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721024186.XU Expired - Fee Related CN207243357U (en) | 2017-08-16 | 2017-08-16 | A kind of lifting platform |
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| CN (1) | CN207243357U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110138176A (en) * | 2019-05-23 | 2019-08-16 | 安徽沃弗电力科技有限公司 | A kind of lifting clutch type permanent magnet coupler |
| CN111302277B (en) * | 2020-03-18 | 2021-08-10 | 河海大学常州校区 | Scissor-fork type aerial work platform with movable hinge point |
-
2017
- 2017-08-16 CN CN201721024186.XU patent/CN207243357U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110138176A (en) * | 2019-05-23 | 2019-08-16 | 安徽沃弗电力科技有限公司 | A kind of lifting clutch type permanent magnet coupler |
| CN111302277B (en) * | 2020-03-18 | 2021-08-10 | 河海大学常州校区 | Scissor-fork type aerial work platform with movable hinge point |
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