CN108799736A - Support device - Google Patents
Support device Download PDFInfo
- Publication number
- CN108799736A CN108799736A CN201810948989.7A CN201810948989A CN108799736A CN 108799736 A CN108799736 A CN 108799736A CN 201810948989 A CN201810948989 A CN 201810948989A CN 108799736 A CN108799736 A CN 108799736A
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- Prior art keywords
- speedup
- cam
- wheel
- support rack
- fixing support
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- 230000007246 mechanism Effects 0.000 claims abstract description 199
- 230000003028 elevating effect Effects 0.000 claims abstract description 89
- 230000001965 increasing effect Effects 0.000 claims abstract description 41
- 230000005540 biological transmission Effects 0.000 claims description 41
- 230000001360 synchronised effect Effects 0.000 claims description 28
- 239000007787 solid Substances 0.000 claims description 5
- 238000004904 shortening Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 6
- 125000001475 halogen functional group Chemical group 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
- F16M11/046—Allowing translations adapted to upward-downward translation movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The present invention relates to mechanical support structure technical field more particularly to a kind of support devices of the object containing screen.The support device is used for the lifting of the object containing screen, including fixing support rack and elevating mechanism；Elevating mechanism includes up and down balance system mechanism and the holding mechanism for connecting the object containing screen；When elevating mechanism is moved along the short transverse of fixing support rack, up and down balance system mechanism acts on fixing support rack and can generate power of the balance containing screen weight of object and elevating mechanism weight；Up and down balance system mechanism includes elastic parts, cam and speed increasing mechanism；When elevating mechanism is moved along the short transverse of fixing support rack, speedup output wheel accordingly rotates and drives cam linkage rotation, to change the arm of force of the elastic force size of elastic parts and the drive-connecting shaft axis of elastic force opposing cam by flexible connecting member.The purpose of the present invention is to provide support device, with display can be made to lift and can easy manipulation, easily and fast in arbitrary height with stopping.
Description
Technical field
The present invention relates to mechanical support structure technical field more particularly to a kind of support devices of the object containing screen.
Background technology
With the development of science and technology, various displays (also known as shielding) are widely used in living now；For example, liquid crystal display
Device is widely used in living now.Common display is a kind of object of approximate plate, itself can not voluntarily stand,
It must could be used by the support of the support devices such as supporting rack.
With the application that display deepens continuously in all trades and professions, people couple cannot be met by being merely capable of fixed support
The demand of display.To be more convenient to use in practical application, display there is a need for being able to lift, and can be convenient in arbitrary height
Quickly with stopping, it has also become new pursuit of the people to display.
Therefore, the application provides a kind of new support device regarding to the issue above, display can be made to lift and energy
Enough easy manipulations, easily and fast in arbitrary height with stopping.
Invention content
The purpose of the present invention is to provide support device, display can be made to lift and being capable of easy manipulation, conveniently
Quickly in arbitrary height with stopping.
To achieve the goals above, the present invention provides following technical schemes；
Based on above-mentioned purpose, support device provided by the invention, for the dynamic balance lifting of the object containing screen, including fixed branch
Support and elevating mechanism；The elevating mechanism can be moved along the short transverse of the fixing support rack；
The elevating mechanism includes up and down balance system mechanism and the holding mechanism for connecting the object containing screen；The elevating mechanism
When being moved along the short transverse of the fixing support rack, the up and down balance system mechanism acts on the fixing support rack and can produce
Power of the life weighing apparatus containing screen weight of object and the elevating mechanism weight；
The up and down balance system mechanism includes elastic parts, cam and speed increasing mechanism；
One end of the elastic parts is connect with the holding mechanism, and the other end is connected by flexible connecting member and the cam
It connects；
The cam is connect with the fixing support rack by the speed increasing mechanism；And the speed increasing mechanism includes that speedup is defeated
Go out wheel；The speedup output wheel is connect by power transmission connection part with the fixing support rack；The speedup output wheel is rotationally
It being articulated on the holding mechanism, the cam is rotationally articulated on the holding mechanism, and the speedup output wheel
Rotating speed is more than the rotating speed of the cam；
When the elevating mechanism is moved along the short transverse of the fixing support rack, the speedup output wheel is connected by power transmission
Fitting drives and accordingly rotates and drive the cam linkage rotation, to which the flexibility is wound and discharged by the cam even
Fitting and the arm of force for changing the elastic force size of the elastic parts and the drive-connecting shaft axis of the relatively described cam of elastic force, with
The weight of object containing screen and the resultant force of the elevating mechanism weight is set to be balanced.
In any of the above-described technical solution, optionally, the speed increasing mechanism includes speedup wheel for inputting；The speedup output wheel
Rotating speed be more than the speedup wheel for inputting rotating speed；
The speedup wheel for inputting is fixed on the part that on the cam or the speedup wheel for inputting is the cam；
The speedup wheel for inputting and the direct machine driving of speedup output wheel；Connect alternatively, the speedup output wheel is fixed
It is connected to coaxial coaxial wheels, the coaxial wheels and the speedup wheel for inputting machine driving.
In any of the above-described technical solution, optionally, the speed increasing mechanism includes speedup wheel for inputting；The speedup output wheel
Rotating speed be more than the speedup wheel for inputting rotating speed；The speed increasing mechanism includes level-one speedup structure or multi-stage acceleration structure.
In any of the above-described technical solution, optionally, the cam includes cam wheel axle portion and by the cam wheel axle portion
The cam profile portion that side extends；The cam profile portion is provided with connecting pin far from cam wheel axle portion one end；
The drive-connecting shaft of the cam is arranged in the cam wheel axle portion；
The cam wheel axle portion is connect with the speedup wheel for inputting, and the connecting pin in the cam profile portion passes through the flexibility
Connector is connect with the elastic parts.
In any of the above-described technical solution, optionally, the cam profile portion is to the radial side of the cam wheel axle portion
Extend；The surface in the cam profile portion has type face varied sections；
When the elevating mechanism is moved along the short transverse of the fixing support rack, the cam accordingly link rotation to
The flexible connecting member is wound or discharges, so that the flexible connecting member is gradually bonded or is gradually distance from type face variation zone
Section either reduces the elastic force of the elastic parts and is accordingly gradually reduced or gradually increases the elasticity simultaneously to increase
The arm of force of the drive-connecting shaft axis of the relatively described cam of the elastic force of component.
In any of the above-described technical solution, optionally, the flexible connecting member includes chain, rope or band.
In any of the above-described technical solution, optionally, the elastic parts connects including the first flexible connector, the second elasticity
Fitting and spring；
The spring is extension spring；The elastic force of the extension spring accordingly increases with the elongation of the extension spring
Add, is accordingly reduced with the shortening of the extension spring；
First flexible connector is connect with the holding mechanism；Second flexible connector is connected by the flexibility
Fitting is connect with the cam；
One or more described spring is set between first flexible connector and second flexible connector.
In any of the above-described technical solution, optionally, first flexible connector passes through adjustable with the holding mechanism
Save component connection；
The adjustable component can adjust distance between first flexible connector and second flexible connector,
To make the spring elongation or shorten to change the elastic force of the spring.
In any of the above-described technical solution, optionally, the power transmission connection part is support chains, and the speedup output wheel is
Speedup output chain gear；One end of the support chains is fixedly connected on the fixing support rack, and the other end is fixed on the increasing
On fast output chain gear；When the elevating mechanism is moved along the short transverse of the fixing support rack, the speedup output chain gear with
The corresponding engaged transmission of the support chains and support chains can be on the speedup output chain gear, described in driving
Elevating mechanism is moved up and down along the fixing support rack；
Alternatively, the power transmission connection part is support chains；One end of the support chains is fixedly connected on the fixed branch
On support, the other end is fixed on the speedup output wheel；The elevating mechanism is moved along the short transverse of the fixing support rack
When dynamic, the support chains can be correspondingly on the speedup output wheel, to drive the elevating mechanism along described solid
Determine supporting rack to move up and down；
Alternatively, the power transmission connection part is rope or band, the speedup output wheel is provided with speedup output race；The rope
One end of rope or the band is fixedly connected on the fixing support rack, and the other end is fixed on the speedup output wheel；It is described
When elevating mechanism is moved along the short transverse of the fixing support rack, the rope or the band are correspondingly wound on the speedup
It exports in race, to drive the elevating mechanism to be moved up and down along the fixing support rack；
Alternatively, the power transmission connection part is synchronous belt, the speedup output wheel is speedup synchronous pulley；The synchronous belt
One end is fixedly connected on the fixing support rack, and the other end is fixed on the speedup synchronous pulley；The elevating mechanism edge
The fixing support rack short transverse movement when, the speedup synchronous pulley correspondingly with the synchronous belt engaged transmission and institute
Stating synchronous belt can be on the speedup synchronous pulley, to drive the elevating mechanism to be moved down along the fixing support rack
It is dynamic；
Alternatively, the power transmission connection part is support rack；The support rack is fixedly connected with the fixing support rack, and
The support rack is arranged along the lifting direction of the elevating mechanism；The speedup output wheel is speedup output gear；The increasing
Fast output gear correspondingly with the support rack can engaged transmission, to drive elevating mechanism above and below the fixing support rack
It is mobile.
In any of the above-described technical solution, optionally, the holding mechanism is equipped with the up and down balance system mechanism；
Up and down balance system mechanism left and right in the holding mechanism is arranged in pairs.
In any of the above-described technical solution, optionally, cunning is provided between the holding mechanism and the fixing support rack
Rail.
In any of the above-described technical solution, optionally, the support device further includes at least one constant force spring, described
The both ends of constant force spring are vertically connect with the fixing support rack and the elevating mechanism respectively, make the elevating mechanism downlink
When by the upward elastic pulling force of the constant force spring.
Using above-mentioned technical proposal, beneficial effects of the present invention：
Support device provided by the invention, including fixing support rack and elevating mechanism；Wherein, elevating mechanism includes that lifting is flat
The mechanism that weighs and holding mechanism；When being moved along the short transverse of fixing support rack by elevating mechanism, up and down balance system mechanism acts on
Fixing support rack and the power that the weight of balance object containing screen and the weight of elevating mechanism can be generated, to realize the liter of the object containing screen
Drop and can easy manipulation, easily and fast in arbitrary height with stopping.Specifically, height of the elevating mechanism along fixing support rack
When spending direction movement, the speedup output wheel of speed increasing mechanism is relatively fixed supporting rack and accordingly rotates and drive cam linkage rotation and roll up
Around or release flexible connecting member and change the elastic force size of elastic parts and the drive-connecting shaft axis of elastic force opposing cam
The arm of force；So that the gravity for the object containing screen that speedup output wheel is born by power transmission connection part and the gravity of elevating mechanism are around speedup
The torque that the drive-connecting shaft axis of output wheel generates, can be equal or of substantially equal with the elastic parts elastic force torque generated,
And then the weight of object containing screen and the resultant force of elevating mechanism weight is made to be balanced, to realize lifting, just for easy manipulation object containing screen
Just quickly in arbitrary height with stopping.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of support device provided in an embodiment of the present invention；
Fig. 2 is the partial enlarged view of support device shown in FIG. 1；
Fig. 3 is another structure partial schematic diagram of support device provided in an embodiment of the present invention；
Fig. 4 is the enlarged drawing of the cam and speed increasing mechanism of support device shown in Fig. 3；
Fig. 5 is the areas the A enlarged drawing of support device shown in Fig. 3.
Icon：100- fixing support racks；200- up and down balance systems mechanism；210- elastic parts；The first flexible connectors of 211-；
The second flexible connectors of 212-；213- springs；220- cams；The drive-connecting shaft of 221- cams；223- cam wheel axle portions；224- cams
Molded line portion；The connecting pin in 225- cam profiles portion；230- speed increasing mechanisms；The drive-connecting shaft of 231- speedup output wheels；232- speedups are defeated
Go out wheel；233- speedup wheel for inputting；234- coaxial wheels；240- power transmission connection parts；250- flexible connecting members；260- adjustable components；
Supporting member is adjusted in 261-；262- adjustable screws；300- holding mechanisms.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment
Shown in Fig. 1-Fig. 5, a kind of support device is present embodiments provided；Fig. 1 fills for support provided in this embodiment
The structural schematic diagram set；Fig. 3 is another structure partial schematic diagram of support device provided in an embodiment of the present invention；In order to more clear
The display structure of Chu, Fig. 2 are the partial enlarged view of support device shown in FIG. 1, and Fig. 4 is the cam of support device shown in Fig. 3
With the enlarged drawing of speed increasing mechanism, Fig. 5 is the areas the A enlarged drawing of support device shown in Fig. 3.Wherein, Fig. 2 and Fig. 3 show supports
Two kinds of use states of device all illustrate a set of up and down balance system mechanism in figure, and Fig. 3 is omitted fixing support rack.
It is glimmering to be used to support liquid crystal display, plasma screen, LCD TV, electronics for support device provided in this embodiment
Curtain etc. object containing screen, the equipment that other can also be supported to need to support.Wherein, screen is also known as display, and the object containing screen can be with
It is interpreted as having or the object containing display.
Shown in Fig. 1-Fig. 5, the support device, for the dynamic balance lifting of the object containing screen, including fixing support rack
100 and elevating mechanism；Elevating mechanism can be moved along the short transverse of fixing support rack 100；
Elevating mechanism includes up and down balance system mechanism 200 and holding mechanism 300；Wherein, holding mechanism 300 is for connecting containing screen
Object, so that the object containing screen is moved with the movement of holding mechanism 300.Elevating mechanism along fixing support rack 100 height side
It is moved to movement namely up and down balance system mechanism 200 and holding mechanism 300 along the short transverse of fixing support rack 100.It is optional
Ground, up and down balance system mechanism 200 are arranged in the inside of holding mechanism 300.
When elevating mechanism is moved along the short transverse of fixing support rack 100, up and down balance system mechanism 200 acts on fixed support
Frame 100 and the power that the weight of balance object containing screen and the weight of elevating mechanism can be generated；Wherein, the weight of elevating mechanism includes
The weight of the weight and holding mechanism 300 of up and down balance system mechanism 200.
Up and down balance system mechanism 200 includes elastic parts 210, cam 220 and speed increasing mechanism 230；
One end of elastic parts 210 is connect with holding mechanism 300, and the other end is connected by flexible connecting member 250 and cam 220
It connects；
Cam 220 is connect with fixing support rack 100 by speed increasing mechanism 230；And speed increasing mechanism 230 includes speedup output wheel
232；Speedup output wheel 232 is connect by power transmission connection part 240 with fixing support rack 100；The rotationally pivot of speedup output wheel 232
It is connected on holding mechanism 300, namely speedup output wheel 232 can be rotated around the axis of the drive-connecting shaft 231 of speedup output wheel；Cam
220 are rotationally articulated on holding mechanism 300 namely cam 220 can be rotated around the axis of the drive-connecting shaft 221 of cam；Increase
The rotating speed of fast output wheel 232 is more than the rotating speed of cam 220；
When elevating mechanism is moved along the short transverse of fixing support rack 100, speedup output wheel 232 passes through power transmission connection part
240, which are relatively fixed supporting rack 100, accordingly rotates and drives the linkage rotation of cam 220, to by winding and discharging flexible connection
Part 250 changes the arm of force of the elastic force size of elastic parts 210 and 221 axis of drive-connecting shaft of elastic force opposing cam, so that
The resultant force of the weight of object containing screen and elevating mechanism weight is balanced, namely so that the weight of object containing screen and the elevating mechanism weight
Resultant force be balanced on entire lifting travel or substantially balance always.Optionally, increased by flexible connecting member 250 or
When person reduces the elastic force size of elastic parts 210, while reducing or increasing by 221 axis of drive-connecting shaft of elastic force opposing cam
Arm of force size.Optionally, when elevating mechanism is moved along the short transverse of fixing support rack 100, speedup output wheel 232 is relatively solid
Determine supporting rack 100 accordingly to rotate and drive 220 synchronous interaction rotation of cam.
In the alternative of the present embodiment, shown in Fig. 1-Fig. 4, elevating mechanism is along the height side of fixing support rack 100
To it is mobile when, namely the object containing screen and holding mechanism 300 move along the short transverse of fixing support rack 100, speed increasing mechanism 230
Speedup output wheel 232 is rotated around the axis of the drive-connecting shaft 231 of speedup output wheel；Due to the constant-radius of speedup output wheel 232, contain
Gravity substantially constant, the arm of force for shielding the weight of object and constant weight namely the support device output of elevating mechanism are also substantially permanent
It is fixed, thus the output torque substantially constant of support device.
In the alternative of the present embodiment, shown in Fig. 1-Fig. 4, elevating mechanism is along the height side of fixing support rack 100
To it is mobile when, namely the object containing screen and holding mechanism 300 move along the short transverse of fixing support rack 100, and cam 220 is around cam
Drive-connecting shaft 221 axis rotation and when increasing or decreasing the elastic force of elastic parts 210, the arm of force of elastic force accordingly reduce or
Increase；Axis rotation of the cam 220 around the drive-connecting shaft 221 of cam is can be understood as, and the elastic force of elastic parts 210 is made to increase
Greatly, while the arm of force of drive-connecting shaft 221 axis of the elastic force apart from cam accordingly reduces, and vice versa；With true to a certain extent
The torque substantially constant of elastic parts 210 is protected, namely ensures the torque substantially constant of support device input, and then to a certain degree
On ensure that the input torque of support device is identical or essentially identical as output torque.
Support device described in the present embodiment includes fixing support rack 100 and elevating mechanism；Wherein, elevating mechanism includes rising
Balance mechanism 200 and holding mechanism 300 drop；When being moved along the short transverse of fixing support rack 100 by elevating mechanism, lifting is flat
Weighing apparatus mechanism 200 acts on fixing support rack 100 and can generate the power of the weight of balance object containing screen and the weight of elevating mechanism,
To realize the lifting of easy manipulation object containing screen, easily and fast in arbitrary height with stopping.Specifically, elevating mechanism is along fixed
When the short transverse movement of supporting rack 100, the speedup output wheel 232 of speed increasing mechanism 230 is relatively fixed supporting rack 100 and accordingly rotates
And the linkage rotation of cam 220 is driven, to pass through the elastic force for winding or discharging flexible connecting member 250 and change elastic parts 210
The arm of force of 221 axis of drive-connecting shaft of size and elastic force opposing cam；So that speedup output wheel 232 passes through power transmission connection part
The power that the gravity of 240 objects containing screen born and the gravity of elevating mechanism are generated around 231 axis of drive-connecting shaft of speedup output wheel
Square, can be equal or of substantially equal with the torque of 210 elastic force of elastic parts, and then makes the weight of object containing screen and elevating mechanism
Dynamic balance between weight and fixing support rack 100, to realize the lifting of easy manipulation object containing screen, easily and fast arbitrary
Height is with stopping.
Shown in Fig. 1-Fig. 4, in the alternative of the present embodiment, speed increasing mechanism 230 includes speedup wheel for inputting 233；Increase
The rotating speed of fast output wheel 232 is more than the rotating speed of speedup wheel for inputting 233；
Speedup wheel for inputting 233 is fixed on the part that on cam 220 or speedup wheel for inputting 233 is cam 220；So that
The common rotation with the rotation of cam 220 of speedup wheel for inputting 233.Wherein, when speedup wheel for inputting 233 is fixed on cam 220, increase
Fast wheel for inputting 233 can be wholely set with cam 220, and speedup wheel for inputting 233 can also pass through welding, riveting, bonding, key connection
Or the connection types such as be spirally connected are fixedly connected with cam 220.Shown in Fig. 1-Fig. 4, speedup wheel for inputting 233 is the one of cam 220
Part.Speedup wheel for inputting 233 described in the present embodiment can be entire wheel according to its practical work section, or wheel
Part, for example, sectional wheel.
Optionally, speedup wheel for inputting 233 and 232 direct machine driving of speedup output wheel；Alternatively, speedup output wheel 232 is solid
Surely coaxial coaxial wheels 234, coaxial wheels 234 and 233 machine driving of speedup wheel for inputting are connected with.Optionally, speedup wheel for inputting 233
Pass through external toothing or Inside gear drive with speedup output wheel 232；Optionally, coaxial wheels 234 pass through outer with speedup wheel for inputting 233
Engagement or Inside gear drive.
Support device described in the present embodiment is smaller to change in the elastic force of elastic parts 210 by speed increasing mechanism 230
Distance of stretch out and draw back when, the speedup output wheel 232 of speed increasing mechanism 230 can be allow to change elevator by power transmission connection part 240
Structure is along the larger lifting travel of fixing support rack.
In the alternative of the present embodiment, meeting the rotating speed of speedup wheel for inputting 233 rotating speed less than speedup output wheel 232
Under the premise of, speed increasing mechanism 230 may include level-one speedup structure or multi-stage acceleration structure.In other words, speed increasing mechanism 230 can
To use level-one speedup, multi-stage acceleration can also be used.What speedup is the support device specifically use, and can be filled according to support
The volume set, structure, the weight of the object containing screen and to requirements such as lifting travels depending on.
Optionally, the common speedup structure of machinery field may be used in speed increasing mechanism 230；For example, speed increasing mechanism 230 uses
Gear drive, chain drive, the mixing of toothed belt transmission, V belt translation, frictional drive or above-mentioned several ways.
For example, speedup wheel for inputting 233 passes through gear drive, chain drive, toothed belt transmission, band with speedup output wheel 232
Transmission, the mixing of frictional drive or above-mentioned several ways.
For example, speedup wheel for inputting 233 and coaxial wheels 234 by gear drive, chain drive, toothed belt transmission, V belt translation,
The mixing of frictional drive or above-mentioned several ways.
It will be appreciated by persons skilled in the art that speed increasing mechanism 230 can also use other structures.
In the alternative of the present embodiment, cam 220 includes cam wheel axle portion 223 and is prolonged by 223 side of cam wheel axle portion
The cam profile portion 224 stretched；Wherein, the cam profile portion 224 extended by 223 side of cam wheel axle portion, it can be understood as cam
Wheel axle portion 223 is fixedly connected with cam profile portion 224.Optionally, cam wheel axle portion 223 and cam profile portion 224 can be one
It is body formed, or cam wheel axle portion 223 is solid by modes such as welding, screw, rivet or keys with cam profile portion 224
Fixed connection.
Optionally, cam profile portion 224 is provided with connecting pin far from 223 one end of cam wheel axle portion；
The drive-connecting shaft 221 of cam is arranged in cam wheel axle portion 223；
Cam wheel axle portion 223 is connect with the speedup wheel for inputting 233 of speed increasing mechanism 230, and the connecting pin 225 in cam profile portion is logical
Flexible connecting member 250 is crossed to connect with elastic parts 210.
Support device described in the present embodiment passes through biography when elevating mechanism is moved along the short transverse of fixing support rack 100
Power connector 240 make speedup output wheel 232 accordingly rotate and be driven speedup wheel for inputting 233 drive cam 220 link rotation, namely
Drive the 224 synchronous interaction rotation of cam wheel axle portion 223 and cam profile portion, winding or release flexible connecting member 250 to increase or
When person reduces the elastic force size of elastic parts 210, while reducing or increasing by 221 axis of drive-connecting shaft of elastic force opposing cam
Arm of force size；So that the torque of 210 elastic force of elastic parts is constant or the input torque of substantially constant namely support device
Substantially constant, to realize the lifting of easy manipulation object containing screen, easily and fast in arbitrary height with stopping.
For example, specifically, cam profile portion 224 extends to the radial side of cam wheel axle portion 223；Cam profile portion
224 surface has type face varied sections；Type face varied sections are for contacting or being detached from flexible connecting member 25.
Elastic parts 210 is connect by flexible connecting member 250 with the connecting pin 225 in cam profile portion；
When elevating mechanism is moved along the short transverse of fixing support rack 100, cam 220 accordingly linkage rotation to winding or
Discharge flexible connecting member 250 so that flexible connecting member 250 is gradually bonded or is gradually distance from type face varied sections, with increase or
Person reduces the elastic force of elastic parts 210, and is accordingly gradually reduced or gradually increases the elastic force phase of elastic parts 210 simultaneously
To the arm of force of 221 axis of drive-connecting shaft of cam；So that the torque of 210 elastic force of elastic parts is constant or substantially constant, namely
The input torque substantially constant of support device, to realize the lifting of easy manipulation object containing screen, easily and fast in arbitrary height
With stopping.That is, when elevating mechanism is moved along the short transverse of fixing support rack 100, cam 220 accordingly linkage rotation to
Flexible connecting member 250 is set to be wound and gradual fit type face varied sections, to increase the elastic force of elastic parts 210, and simultaneously
The arm of force of 221 axis of drive-connecting shaft of the corresponding elastic force opposing cam for being gradually reduced elastic parts 210；Vice versa.
It should be noted that type face varied sections are a drive-connecting shaft axis radiuses or song for profile surface each point opposing cam
The curved sections of rate variation, the section can be smooth surface, also can be wheel dentation by the variation tendency in its type face；Such as in order to coordinate
Flexible connecting member 250 with wheel dentation, correspondingly, type face varied sections have wheel dentation.
In the alternative of the present embodiment, flexible connecting member 250 includes chain, rope or band.Optionally, band includes metal
Band, plastic tape, conveyer belt, rubber strip either synchronous belt or other ribbons；Optionally, band can have tooth, can not also
With tooth.
Shown in Fig. 2 and Fig. 3, in the alternative of the present embodiment, elastic parts 210 includes the first flexible connector
211, the second flexible connector 212 and spring 213；
First flexible connector 211 is connect with holding mechanism 300；Second flexible connector 212 passes through flexible connecting member 250
It is connect with cam 220；
One or more spring 213 is set between first flexible connector 211 and the second flexible connector 212.Pass through
First flexible connector 211 and the second flexible connector 212, in order to elastic parts 210 respectively with holding mechanism 300 and cam
220 connection is also convenient for that one or more bullet is arranged between the first flexible connector 211 and the second flexible connector 212
Spring 213 is conducive to the elastic force according to spring 213, adjusts the quantity of spring 213 containing factors such as the weight for shielding object.It is described
Spring 213 is extension spring；The elastic force of the extension spring accordingly increases with the elongation of the extension spring, with the drawing
It stretches the shortening of spring and accordingly reduces.
Support device described in the present embodiment can be in elevator by cam 220 and the elastic parts with spring 210
When structure is moved along the short transverse of fixing support rack 100, the 232 corresponding machine driving of speedup output wheel of speed increasing mechanism 230 and turn
The linkage rotation of cam 220 is moved and drives, to big by the elastic force for winding or discharging the change spring 213 of flexible connecting member 250
The arm of force of 221 axis of small and elastic force opposing cam drive-connecting shaft；So that speedup output wheel 232 passes through power transmission connection part 240
The torque that the gravity of the object containing screen born and the gravity of elevating mechanism are generated around 231 axis of drive-connecting shaft of speedup output wheel,
It can be equal or of substantially equal with the torque of 210 elastic force of elastic parts；The object containing screen born due to speedup output wheel 232
Gravity and elevating mechanism the torque that is generated around 231 axis of drive-connecting shaft of speedup output wheel of gravity it is constant or substantially permanent
It is fixed, thus 210 elastic force of elastic parts torque is constant or substantially constant.
In the alternative of the present embodiment, in order to make support device be adapted to the object containing screen of wider different weight
Body, 210 elastic force of elastic parts can adjust in a certain range.
For example, the first flexible connector is connect with holding mechanism 300 by adjustable component 260；260 energy of adjustable component
Distance between the first flexible connector 211 and the second flexible connector 212 is enough adjusted, to make spring elongation or shorten to change
Become the elastic force of spring.
By adjustable component 260, in order to adjust the initial elasticity power of elastic parts 210, so that support device can be with
Adapt to the object containing screen of wider variation weight.For example, containing screen object be 40kg when, by adjust adjustable component 260 with
The initial elasticity power for changing elastic parts 210 passes through the gravity and elevating mechanism of the object containing screen that power transmission connection part 240 is born
The torque that gravity is generated around 231 axis of drive-connecting shaft of speedup output wheel, can be equal with the torque of 210 elastic force of elastic parts
Or it is of substantially equal, to realize the lifting of easy manipulation object containing screen, easily and fast in arbitrary height with stopping.It is containing object is shielded
When 60kg, by adjusting adjustable component 260 to increase the initial elasticity power of elastic parts 210, held by power transmission connection part 240
The torque that the gravity for the object containing screen received and the gravity of elevating mechanism are generated around 231 axis of drive-connecting shaft of speedup output wheel, according to
So can be equal or of substantially equal with the torque of 210 elastic force of elastic parts, with realize easy manipulation containing screen object lifting,
Easily and fast in arbitrary height with stopping.
Shown in Figure 5, optionally, adjustable component 260 includes adjustable supporting member 261 and adjustable screw 262；It can
The setting of supporting member 261 is adjusted in 300 outside of holding mechanism, the first flexible connector 211 is arranged in 300 the inside of holding mechanism,
And supporting member 261 is adjusted and is connected on holding mechanism 300；First flexible connector 211 is fixedly installed nut or first
Flexible connector 211 has threaded hole；Adjustable screw 262 passes through 261 and first flexible connector of adjustable supporting member, 211 spiral shell
It connects.By rotating adjustable screw 262, the distance between 261 and first flexible connector 211 of supporting member is adjusted to change,
To change the tensile elongation between the first flexible connector 211 and the second flexible connector 212.Optionally, elastic parts 210
213 original state of spring be in tensional state, spring 213 has initial elasticity power, so that adjustable supporting member 261 can abut
On support element.
It will be appreciated by persons skilled in the art that the present embodiment can also use other adjustable components 260 to adjust bullet
The initial elasticity power of property component 210.
Optionally, spring is extension spring；The elastic force of extension spring accordingly increases with the elongation of extension spring, namely
The elastic force of extension spring increases with the stretching distance of extension spring and accordingly increases；Vice versa, such as the elasticity of extension spring
Power is accordingly reduced with the shortening of extension spring namely the elastic force of extension spring is reduced and phase with the stretching distance of extension spring
It should reduce.The common constant force spring that the prior art is replaced by using extension spring, can extend elastic parts 210 uses the longevity
Lifting force is ordered and can be adjusted when needed, to adapt to hang the object containing screen of different weight.The use of constant force spring is that can not adjust
Save lifting force.
In the alternative of the present embodiment, power transmission connection part 240 is support chains, and speedup output wheel 232 exports for speedup
Sprocket wheel；One end of support chains is fixedly connected on fixing support rack 100, and the other end is fixed on speedup output chain gear；Lifting
When mechanism is moved along the short transverse of fixing support rack 100, speedup output chain gear engaged transmission corresponding to support chains and support
Chain can be on speedup output chain gear, to drive elevating mechanism to be moved up and down along fixing support rack 100；
In the alternative of the present embodiment, power transmission connection part 240 is support chains；One end of support chains is fixedly connected on
On fixing support rack 100, the other end is fixed on speedup output wheel 232；Short transverse of the elevating mechanism along fixing support rack 100
When mobile, support chains can be correspondingly on speedup output wheel 232, to drive elevating mechanism along fixing support rack 100
It moves up and down；Optionally, speedup output wheel 232 is halo, and support chains one end is clamped with halo, and remaining section can be in the outer of halo
It is wound in circular groove or the carrier bar of chain is clamped halo wheel rim and is wound.
In the alternative of the present embodiment, power transmission connection part 240 is rope or band, and speedup output wheel 232 is provided with speedup
Export race；One end of rope or band is fixedly connected on fixing support rack 100, and the other end is fixed on speedup output wheel 232；
When elevating mechanism is moved along the short transverse of fixing support rack 100, rope or band are correspondingly exported wound on speedup in race, with
Driving elevating mechanism is moved up and down along fixing support rack 100；Wherein, band include metal tape, plastic tape, conveyer belt, rubber strip or
Person's synchronous belt or other ribbons；Optionally, band can have tooth, can not also have tooth.
In the alternative of the present embodiment, power transmission connection part 240 is synchronous belt, and speedup output wheel 232 is speedup synchronous belt
Wheel；One end of synchronous belt is fixedly connected on fixing support rack 100, and the other end is fixed on speedup synchronous pulley；Elevating mechanism
When being moved along the short transverse of fixing support rack 100, speedup synchronous pulley correspondingly with synchronous belt engaged transmission and synchronous belt energy
Enough on speedup synchronous pulley, to drive elevating mechanism to be moved up and down along fixing support rack 100；Those skilled in the art can
With understanding, speedup synchronous pulley can also be halo.
In the alternative of the present embodiment, power transmission connection part 240 is support rack；Support rack and fixing support rack 100
It is fixedly connected, and rack is supported to be arranged along the lifting direction of elevating mechanism；Speedup output wheel 232 is speedup output gear；Speedup
Output gear correspondingly with support rack can engaged transmission, to drive elevating mechanism to be moved up and down along fixing support rack 100.
In the alternative of the present embodiment, the quantity of up and down balance system mechanism 200 is one or more.
Optionally, up and down balance system mechanism 200 is arranged in pairs.
In the alternative of the present embodiment, holding mechanism 300 is equipped with up and down balance system mechanism 200；Up and down balance system mechanism 200
Left and right is arranged in pairs in holding mechanism 300.Using such design, contain screen object can cancel out each other to a certain extent
Around the deflecting force of the axis perpendicular to screen, reduce or avoid containing screen object deflection, improve support device lift adjustment when
Stability.
Optionally, the quantity of up and down balance system mechanism 200 is one, and a up and down balance system mechanism 200 is arranged in holding mechanism
It is reduced with that can reduce or avoid to a certain extent the Objects around A containing screen perpendicular to the deflecting force of the axis of screen 300 centre
Or the deflection of the object containing screen is avoided, improve stability when support device lift adjustment.
In the alternative of the present embodiment, sliding rail is provided between holding mechanism 300 and fixing support rack 100.Optionally,
Sliding rail includes bearing sliding rail either ball slide rail or other sliding rail or track.
In the alternative of the present embodiment, the support device may include at least one constant force spring (because being easier to manage
Solve, do not shown in figure), the both ends of the constant force spring are vertically connect with fixing support rack and elevating mechanism respectively, are made described
By the elastic pulling force that the constant force spring is upward when elevating mechanism downlink.This can be used in this support device being not required to adjusting lifting
The generation of the part force value of power, to share a part of power generated by extension spring.For example this support device requires to bear
Maximum 70 kgfs, kilogram need are adjustable from 40 kilograms to 70, then are not required to force adjustment for this 40 kilograms, can be undertaken with those constant force springs
Part or all of this 40 kilograms, to mitigate the burden of extension spring and be conducive to the error smaller of lifting force variation after force adjustment.
The prior art carries out the flat of power only with constant force spring to the weight of the object containing screen and the weight of itself lifting gear
Weighing apparatus, but constant force spring short life and can not force adjustment, when use can not adapt to hang the screen of different weight.It is supported described in the present embodiment
Device, by elastic parts, cam and speed increasing mechanism, or by elastic parts, cam, speed increasing mechanism and constant force spring,
The spring life of elastic parts is longer, extends the service life of support device, can also adjust equilibrant force and adapts to hang different weight
Containing screen object.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other implementations
Included certain features in example rather than other feature, but the combination of the feature of different embodiments means in the present invention
Within the scope of and form different embodiments.For example, in claims above, embodiment claimed
It is one of arbitrary mode to use in any combination.The information for being disclosed in the background technology part is merely intended to intensification pair
The understanding of the general background technology of the present invention, and be not construed as recognizing or implying in any form that information composition has been this
The prior art well known to field technology personnel.
Claims (12)
1. a kind of support device, the dynamic balance lifting for the object containing screen, which is characterized in that including fixing support rack and elevator
Structure；The elevating mechanism can be moved along the short transverse of the fixing support rack；
The elevating mechanism includes up and down balance system mechanism and the holding mechanism for connecting the object containing screen；The elevating mechanism is along institute
When stating the short transverse movement of fixing support rack, the up and down balance system mechanism acts on the fixing support rack and can generate flat
Weigh the power containing screen weight of object and the elevating mechanism weight；
The up and down balance system mechanism includes elastic parts, cam and speed increasing mechanism；
One end of the elastic parts is connect with the holding mechanism, and the other end is connect by flexible connecting member with the cam；
The cam is connect with the fixing support rack by the speed increasing mechanism；And the speed increasing mechanism includes speedup output
Wheel；The speedup output wheel is connect by power transmission connection part with the fixing support rack；The speedup output wheel rotationally pivot
It is connected on the holding mechanism, the cam is rotationally articulated on the holding mechanism, and turn of the speedup output wheel
Speed is more than the rotating speed of the cam；
When the elevating mechanism is moved along the short transverse of the fixing support rack, the speedup output wheel passes through power transmission connection part
It drives and accordingly rotates and drive the cam linkage rotation, to which the flexible connecting member is wound and discharged by the cam
And change the arm of force of the elastic force size of the elastic parts and the drive-connecting shaft axis of the relatively described cam of elastic force, so as to contain
The resultant force of screen weight of object and the elevating mechanism weight is balanced.
2. support device according to claim 1, which is characterized in that the speed increasing mechanism includes speedup wheel for inputting；It is described
The rotating speed of speedup output wheel is more than the rotating speed of the speedup wheel for inputting；
The speedup wheel for inputting is fixed on the part that on the cam or the speedup wheel for inputting is the cam；
The speedup wheel for inputting and the direct machine driving of speedup output wheel；Alternatively, the speedup output wheel is fixedly connected with
Coaxial coaxial wheels, the coaxial wheels and the speedup wheel for inputting machine driving.
3. support device according to claim 1 or 2, which is characterized in that the speed increasing mechanism includes speedup wheel for inputting；Institute
The rotating speed for stating speedup output wheel is more than the rotating speed of the speedup wheel for inputting；The speed increasing mechanism includes level-one speedup structure or more
Grade speedup structure.
4. support device according to claim 1 or 2, which is characterized in that the cam includes cam wheel axle portion and by institute
State the cam profile portion of cam wheel axle portion side extension；The cam profile portion is provided with connection far from cam wheel axle portion one end
End；
The drive-connecting shaft of the cam is arranged in the cam wheel axle portion；
The cam wheel axle portion is connect with the speedup wheel for inputting, and the connecting pin in the cam profile portion passes through the flexible connection
Part is connect with the elastic parts.
5. support device according to claim 4, which is characterized in that the cam profile portion is to the cam wheel axle portion
Radial side extends；The surface in the cam profile portion has type face varied sections；
When the elevating mechanism is moved along the short transverse of the fixing support rack, the cam accordingly links rotation to wind
Or the release flexible connecting member, so that the flexible connecting member is gradually bonded or is gradually distance from type face varied sections,
Either reduce the elastic force of the elastic parts to increase and be accordingly gradually reduced or gradually increase the elastic parts simultaneously
The relatively described cam of elastic force drive-connecting shaft axis the arm of force.
6. support device according to claim 1 or 2, which is characterized in that the flexible connecting member include chain, rope or
Band.
7. support device according to claim 1 or 2, which is characterized in that the elastic parts includes the first elastic connection
Part, the second flexible connector and spring；
The spring is extension spring；The elastic force of the extension spring accordingly increases with the elongation of the extension spring, with
The shortening of the extension spring and accordingly reduce；
First flexible connector is connect with the holding mechanism；Second flexible connector passes through the flexible connecting member
It is connect with the cam；
One or more described spring is set between first flexible connector and second flexible connector.
8. support device according to claim 7, which is characterized in that first flexible connector and the holding mechanism
It is connected by adjustable component；
The adjustable component can adjust distance between first flexible connector and second flexible connector, to
Make the spring elongation or shortens to change the elastic force of the spring.
9. support device according to claim 1, which is characterized in that the power transmission connection part is support chains, the increasing
Fast output wheel is speedup output chain gear；One end of the support chains is fixedly connected on the fixing support rack, and the other end is solid
It is scheduled on the speedup output chain gear；When the elevating mechanism is moved along the short transverse of the fixing support rack, the speedup
Output chain gear it is corresponding to the support chains engaged transmission and the support chains can on the speedup output chain gear,
To drive the elevating mechanism to be moved up and down along the fixing support rack；
Alternatively, the power transmission connection part is support chains；One end of the support chains is fixedly connected on the fixing support rack
On, the other end is fixed on the speedup output wheel；When the elevating mechanism is moved along the short transverse of the fixing support rack,
The support chains can be correspondingly on the speedup output wheel, to drive the elevating mechanism along the fixed support
Frame moves up and down；
Alternatively, the power transmission connection part is rope or band, the speedup output wheel is provided with speedup output race；The rope or
One end of the band is fixedly connected on the fixing support rack, and the other end is fixed on the speedup output wheel；The lifting
When mechanism is moved along the short transverse of the fixing support rack, the rope or the band are correspondingly exported wound on the speedup
In race, to drive the elevating mechanism to be moved up and down along the fixing support rack；
Alternatively, the power transmission connection part is synchronous belt, the speedup output wheel is speedup synchronous pulley；One end of the synchronous belt
It is fixedly connected on the fixing support rack, the other end is fixed on the speedup synchronous pulley；The elevating mechanism is described in
When the short transverse movement of fixing support rack, the speedup synchronous pulley correspondingly with synchronous belt engaged transmission and described same
Walking band can be on the speedup synchronous pulley, to drive the elevating mechanism to be moved up and down along the fixing support rack；
Alternatively, the power transmission connection part is support rack；The support rack is fixedly connected with the fixing support rack, and described
Rack is supported to be arranged along the lifting direction of the elevating mechanism；The speedup output wheel is speedup output gear；The speedup is defeated
Go out gear correspondingly with the support rack can engaged transmission, to drive elevating mechanism to be moved down along the fixing support rack
It is dynamic.
10. support device according to claim 1, which is characterized in that the holding mechanism is equipped with the up and down balance system
Mechanism；
Up and down balance system mechanism left and right in the holding mechanism is arranged in pairs.
11. support device according to claim 1, which is characterized in that the holding mechanism and the fixing support rack it
Between be provided with sliding rail.
12. support device according to claim 1, which is characterized in that further include at least one constant force spring, the constant force
The both ends of spring are vertically connect with the fixing support rack and the elevating mechanism respectively, when making the elevating mechanism downlink by
The elastic pulling force upward to the constant force spring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810948989.7A CN108799736B (en) | 2018-08-20 | 2018-08-20 | Supporting device |
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|---|---|---|---|
| CN201810948989.7A CN108799736B (en) | 2018-08-20 | 2018-08-20 | Supporting device |
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| CN108799736B CN108799736B (en) | 2023-08-04 |
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| CN110375169A (en) * | 2019-06-23 | 2019-10-25 | 泰州市创新电子有限公司 | A kind of display screen support frame |
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| CN108799736B (en) | 2023-08-04 |
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