CN208764580U - Support device - Google Patents
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- CN208764580U CN208764580U CN201821347893.7U CN201821347893U CN208764580U CN 208764580 U CN208764580 U CN 208764580U CN 201821347893 U CN201821347893 U CN 201821347893U CN 208764580 U CN208764580 U CN 208764580U
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- cam
- elevating mechanism
- support rack
- force
- support device
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Abstract
The utility model relates to mechanical support structure technical field more particularly to a kind of support devices.The support device is used for the lifting of the object containing screen, including fixing support rack and elevating mechanism；Elevating mechanism includes the holding mechanism of up and down balance system mechanism and the connection 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 output wheel；When elevating mechanism is moved along the short transverse of fixing support rack, output wheel and support rack gear engaged transmission and it is corresponding rotate to drive cam linkage rotation, change the arm of force of the elastic force size of elastic parts and the drive-connecting shaft axis of elastic force opposing cam to wind by cam and discharge flexible connecting member.The purpose of this utility model is to provide support device, with display can be made to go up and down and can easy manipulation, easily and fast in arbitrary height with stopping.
Description
Technical field
The utility model relates to mechanical support structure technical field more particularly to a kind of support devices of the object containing screen.
Background technique
With the development of science and technology, during various displays (also known as shielding) are widely used to live now；For example, liquid crystal display
During device is widely used to live 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 support frame.
With the application that display deepens continuously in all trades and professions, it is merely capable of fixed support and is no longer satisfied people couple
The demand of display.To be more convenient to use in practical application, display there is a need for being able to go up and down, 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, go up and down display and energy
Enough easy manipulations, easily and fast in arbitrary height with stopping.
Utility model content
The purpose of this utility model is to provide support device, with display can be made to go up and down and can easy manipulation,
Easily and fast in arbitrary height with stopping.
To achieve the goals above, the utility model provides following technical scheme；
Based on above-mentioned purpose, support device provided by the utility model, for the dynamic balance lifting of the object containing screen, including admittedly
Determine support frame 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 moving 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 output wheel；
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 coaxially connected with the output wheel, and the cam and the output wheel are rotationally articulated in the appearance
It receives in mechanism；
The fixing support rack is fixedly installed support rack gear, the support rack gear along the lifting direction of the elevating mechanism
It is driven with the output wheel mechanical engagement；
When the elevating mechanism is moved along the short transverse of the fixing support rack, the output wheel and the support rack gear
Engaged transmission is simultaneously accordingly rotated to drive the cam linkage rotation, to be wound by the cam and discharge the flexibility 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
It is balanced the weight of object containing screen and the resultant force of the elevating mechanism weight.
In any of the above-described technical solution, optionally, one end of drive-connecting shaft of the cam far from the cam is provided with
Connecting pin；The connecting pin of the cam is connect by the flexible connecting member with the elastic parts；
The surface of the cam has type face varied sections；
When the elevating mechanism is moved along the short transverse of the fixing support rack, the output wheel is corresponding to the cam
Linkage rotation is to winding or discharges the flexible connecting member, so that the flexible connecting member is gradually bonded or is gradually distance from institute
Type face varied sections are stated, perhaps reduces the elastic force of the elastic parts to increase and is accordingly gradually reduced or gradually simultaneously
Increase the arm of force of the drive-connecting shaft axis of the relatively described cam of elastic force of the elastic parts.
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；
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, the spring is extension spring；The elastic force of the extension spring with
The elongation of the extension spring and increase accordingly, accordingly reduced with the shortening of the extension spring.
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 between first flexible connector and second flexible connector away from
From 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 adjustable component includes adjustable supporting member and adjustable spiral shell
Bar；
In the holding mechanism outside, first flexible connector is arranged described for the adjustable supporting member setting
Inside holding mechanism；
The adjustable supporting member abut or be connected on the holding mechanism or the adjustable supporting member with it is described
Holding mechanism is integrated；
First flexible connector, which is fixedly installed nut or first flexible connector, has threaded hole；
The adjustable screw passes through the adjustable supporting member and is spirally connected with first flexible connector.
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 the elastic pulling force upward by the constant force spring.
By adopting the above technical scheme, the utility model has the beneficial effects that
Support device provided by the utility model, including fixing support rack and elevating mechanism；Wherein, elevating mechanism includes rising
Balance mechanism and holding mechanism drop；When being moved by elevating mechanism along the short transverse of fixing support rack, up and down balance system mechanism makees
For fixing support rack and can generate balance containing screen object weight and elevating mechanism weight power, to realize easy manipulation
The lifting of the object containing screen, easily and fast in arbitrary height with stopping.Specifically, elevating mechanism is along the height side of fixing support rack
To it is mobile when, the output wheel and the support rack gear engaged transmission it is simultaneously corresponding rotate to drive the cam linkage rotation, from
And elastic force size and elasticity that the flexible connecting member changes the elastic parts are wound and discharged by the cam
The arm of force of the drive-connecting shaft axis of the relatively described cam of power, so that the resultant force of the weight of object containing screen and the elevating mechanism weight is put down
Weighing apparatus；So that output wheel is by supporting the gravity containing the gravity and elevating mechanism that shield object of rack gear receiving around the drive-connecting shaft of cam
The torque that axis generates, can be equal or of substantially equal with the torque of elastic parts elastic force, and then makes the weight of object containing screen
Dynamic balance between elevating mechanism weight and fixing support rack, to realize lifting, the fast and easy of easy manipulation object containing screen
In arbitrary height with stopping.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of support device provided by the embodiment of the utility model；
Fig. 2 is the partial enlarged view of support device shown in FIG. 1；
Fig. 3 is the cam of support device shown in Fig. 2 and the enlarged drawing of output wheel；
Fig. 4 is the area the A enlarged drawing of support device shown in Fig. 2.
Icon: 100- fixing support rack；200- up and down balance system mechanism；210- elastic parts；The first flexible connector of 211-；
The second flexible connector of 212-；213- spring；220- cam；The drive-connecting shaft of 221- cam；The connecting pin of 222- cam；230- is defeated
It takes turns out；240- supports rack gear；250- flexible connecting member；260- adjustable component；Supporting member is adjusted in 261-；Spiral shell is adjusted in 262-
Bar；300- holding mechanism.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Embodiment
Shown in referring to figures 1-4, a kind of support device is present embodiments provided；Fig. 1 is support provided in this embodiment dress
The structural schematic diagram set；In order to more clearly show that structure, Fig. 2 is the partial enlarged view of support device shown in FIG. 1, Fig. 3
For the cam of support device shown in Fig. 2 and the enlarged drawing of output wheel；Fig. 4 is the area the A enlarged drawing of support device shown in Fig. 2.
Wherein, Fig. 2 shows a set of up and down balance system mechanisms.
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 referring to figures 1-4, 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 contains for connecting
Shield object, so that the object containing screen is moved with the movement of holding mechanism 300.Elevating mechanism along fixing support rack 100 height
Direction movement namely up and down balance system mechanism 200 and holding mechanism 300 are moved along the short transverse of fixing support rack 100.It is optional
The inside of holding mechanism 300 is arranged in ground, up and down balance system mechanism 200.
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 up and down balance system mechanism 200 and the weight of holding mechanism 300.
Up and down balance system mechanism 200 includes elastic parts 210, cam 220 and output wheel 230；
One end of elastic parts 210 is connect with holding mechanism 300, and the other end passes through flexible connecting member 250 and cam 220
Connection；
The cam is coaxially connected with the output wheel, and cam and output wheel 230 share same drive-connecting shaft 221.It is described convex
Wheel and the output wheel are rotationally articulated on the holding mechanism；Namely cam and output wheel 230 can be around the pivots of cam
The axis of spindle 221 rotates；
The fixing support rack is fixedly installed support rack gear, the support rack gear along the lifting direction of the elevating mechanism
It is driven with the output wheel mechanical engagement；
When elevating mechanism is moved along the short transverse of fixing support rack 100, output wheel 230 is engaged by support rack gear 240
It is driven and accordingly rotates to drive the linkage rotation of cam 220, change bullet to pass through cam and wind and discharge flexible connecting member 250
Property component 210 elastic force size and elastic force opposing cam 221 axis of drive-connecting shaft the arm of force so that containing screen weight of object
It is balanced with the resultant force of elevating mechanism weight, namely so that containing the resultant force of weight of object and the elevating mechanism weight is shielded entire
It is balanced on lifting travel or substantially balances always.Optionally, increase or reduce elastic parts by flexible connecting member 250
When 210 elastic force size, while the arm of force size of 221 axis of drive-connecting shaft of reduction or increase elastic force opposing cam.
In the optinal plan of the present embodiment, shown referring to figures 1-4, 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, due to output wheel 230
Constant-radius, containing screen object weight and elevating mechanism constant weight namely support device output gravity substantially constant,
The arm of force also substantially constant, thus the output torque substantially constant of support device.
In the optinal plan of the present embodiment, shown referring to figures 1-4, 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；Cam 220 be can be understood as around the axis rotation of the drive-connecting shaft 221 of cam, and increase the elastic force of elastic parts 210
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 by elevating mechanism along the short transverse of fixing support rack 100, lifting
Balance mechanism 200 acts on fixing support rack 100 and can generate weight of the balance containing the weight and elevating mechanism for shielding object
Power, to realize the lifting of easy manipulation object containing screen, easily and fast in arbitrary height with stopping.Specifically, elevating mechanism edge
When the short transverse of fixing support rack 100 is mobile, the output wheel with the support rack gear engaged transmission is simultaneously corresponding rotates with drive
Make the cam linkage rotation, changes the elastic parts to wind by the cam and discharge the flexible connecting member
Elastic force size and the relatively described cam of elastic force drive-connecting shaft axis the arm of force so that the weight of object and liter containing screen
The resultant force of descending mechanism weight is balanced；So that the gravity and liter of the object containing screen that output wheel 230 is born by support rack gear 240
The torque that the gravity of descending mechanism is generated around 221 axis of drive-connecting shaft of cam, can be with the torque phase of 210 elastic force of elastic parts
Deng or it is of substantially equal, and then make containing screen weight of object and elevating mechanism weight and fixing support rack 100 between dynamic balance, with
Realize the lifting of easy manipulation object containing screen, easily and fast in arbitrary height with stopping.
Support device described in the present embodiment passes through branch when elevating mechanism is moved along the short transverse of fixing support rack 100
Support rack gear 240 rotates output wheel 230 accordingly and synchronizes to drive the linkage rotation of cam 220, winding or release flexible connecting member 250
When increasing the elastic force size for perhaps reducing elastic parts 210 at the same reduce or increase elastic force opposing cam pivot joint
The arm of force size of 221 axis of axis；So that the torque of 210 elastic force of elastic parts is constant or substantially constant namely support device
Input torque substantially constant, to realize the lifting of easy manipulation object containing screen, easily and fast in arbitrary height with stopping.
In the optinal plan of the present embodiment, cam 220 is provided with connecting pin far from drive-connecting shaft one end of cam；The cam
Connecting pin connect with the elastic parts by the flexible connecting member；
The surface of cam 220 has type face varied sections；Type face varied sections are for contacting or being detached from flexible connecting member
250。
Elastic parts 210 is connect by flexible connecting member 250 with the connecting pin 222 of cam；
When elevating mechanism is moved along the short transverse of fixing support rack 100, output wheel linkage corresponding to cam 220
Rotation is to wind or discharge flexible connecting member 250, so that flexible connecting member 250 is gradually bonded or is gradually distance from the variation of type face
Section perhaps reduces the elastic force of elastic parts 210 and is accordingly gradually reduced or is gradually increased elastic parts simultaneously to increase
The arm of force of 221 axis of drive-connecting shaft of 210 elastic force opposing cam；So that the torque of 210 elastic force of elastic parts it is constant or
The input torque substantially constant of substantially constant namely support device, to realize lifting, the fast and easy of easy manipulation object containing screen
In arbitrary height with stopping.That is, when elevating mechanism is moved along the short transverse of fixing support rack 100, output wheel with it is convex
Accordingly linkage rotations are to make flexible connecting member 250 be wound and gradually fit type face varied sections for wheel 220, to increase elastic group
The elastic force of part 210, and be accordingly gradually reduced 221 axis of drive-connecting shaft of the elastic force opposing cam of elastic parts 210 simultaneously
The arm of force；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, can also be wheel dentation by the variation tendency in its type face；Such as in order to cooperate
Flexible connecting member 250 with wheel dentation, correspondingly, type face varied sections have wheel dentation.
In the optinal plan of the present embodiment, flexible connecting member 250 includes chain, rope or band.Optionally, band includes metal
Band, plastic tape, conveyer belt, rubber strip perhaps synchronous belt or other ribbons；Optionally, band can have tooth, can also not
With tooth.
Shown in referring to figs. 2 and 3, in the optinal plan 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 is increase accordingly with the elongation of the extension spring, with described
The shortening of extension spring and accordingly reduce.
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 corresponding machine driving of output wheel 230 and rotate and drive cam 220
Movable pendulum turns, thus opposite by the elastic force size and elastic force for winding or discharging the change spring 213 of flexible connecting member 250
The arm of force of 221 axis of drive-connecting shaft of cam；So that output wheel 230 by support rack gear 240 bear containing screen object gravity and
The torque that the gravity of elevating mechanism is generated around 221 axis of drive-connecting shaft of cam, can be with the torque of 210 elastic force of elastic parts
It is equal or of substantially equal；Since the gravity of the object containing screen of the receiving of output wheel 230 and the gravity of elevating mechanism are around cam
The constant perhaps substantially constant of torque that 221 axis of drive-connecting shaft generates therefore 210 elastic force of elastic parts torque is constant or base
This is constant.
In the optinal plan 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, the weight containing the gravity and elevating mechanism for shielding object born by support rack gear 240
The torque that power is generated around 221 axis of drive-connecting shaft of cam, can be equal or basic with the torque of 210 elastic force of elastic parts
It is equal, to realize the lifting of easy manipulation object containing screen, easily and fast in arbitrary height with stopping.When the object containing screen is 60kg,
By adjusting adjustable component 260 to increase the initial elasticity power of elastic parts 210, contain screen by what support rack gear 240 was born
The torque that the gravity of object and the gravity of elevating mechanism are generated around 221 axis of drive-connecting shaft of cam, still can be with elastic group
The torque of 210 elastic force of part is equal or of substantially equal, to realize the lifting, in office easily and fast of easy manipulation object containing screen
Meaning height is with stopping.
Shown in Figure 4, 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 adjustable supporting member 261 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 adjustable 211 spiral shell of supporting member 261 and the first flexible connector
It connects.By rotating adjustable screw 262, to change adjustable the distance between supporting member 261 and the first flexible connector 211,
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 supporting element.Optionally, the adjustable supporting member be connected on the holding mechanism or the adjustable supporting member with
The holding mechanism is integrated.
It will be appreciated by persons skilled in the art that the present embodiment can also adjust bullet using other adjustable components 260
The initial elasticity power of property component 210.
Optionally, spring is extension spring；The elastic force of extension spring is increase accordingly with the elongation of extension spring, namely
The elastic force of extension spring increases with the stretching distance of extension spring and is increase accordingly；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.It the use of constant force spring is that can not adjust
Save lifting force.
In the optinal plan 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 optinal plan 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 optinal plan of the present embodiment, sliding rail is provided between holding mechanism 300 and fixing support rack 100.Optionally,
Sliding rail includes bearing sliding rail perhaps ball slide rail or other sliding rail or track.
In the optinal plan 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
The elastic pulling force upward by constant force spring 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
70 Kgfs maximum, 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
It is part or all of this 40 kilograms, smaller to mitigate the burden of extension spring and be conducive to the error that lifting force changes after force adjustment.
The prior art carries out the flat of power to the weight of the object containing screen and the weight of itself lifting device only with constant force spring
Weighing apparatus, but the constant force spring service life it is short 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 passes through 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 various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.In addition, it will be appreciated by those of skill in the art that although some implementations described herein
Example includes certain features included in other embodiments rather than other feature, but the group of the feature of different embodiments is desirable
Taste within the scope of the utility model and form different embodiments.For example, in claims above, institute
Claimed embodiment it is one of any can in any combination mode come using.It is disclosed in the background technology part
Information is merely intended to deepen the understanding to the general background technology of the utility model, and is not construed as recognizing or with any shape
Formula implies that the information constitutes the prior art known to those skilled in the art.
Claims (10)
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 output wheel；
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 coaxially connected with the output wheel, and the cam and the output wheel are rotationally articulated in the receiving machine
On structure；
The fixing support rack is fixedly installed support rack gear, the support rack gear and institute along the lifting direction of the elevating mechanism
State the transmission of output wheel mechanical engagement；
When the elevating mechanism is moved along the short transverse of the fixing support rack, the output wheel is engaged with the support rack gear
It is driven and accordingly rotates to drive the cam linkage rotation, so that 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 one of drive-connecting shaft of the cam far from the cam
End is provided with connecting pin；The connecting pin of the cam is connect by the flexible connecting member with the elastic parts；
The surface of the cam has type face varied sections；
When the elevating mechanism is moved along the short transverse of the fixing support rack, the output wheel is corresponding to the cam to link
Rotation is to winding or discharges the flexible connecting member, so that the flexible connecting member is gradually bonded or is gradually distance from the type
Face varied sections perhaps reduce the elastic force of the elastic parts and are accordingly gradually reduced or are gradually increased simultaneously to increase
The arm of force of the drive-connecting shaft axis of the relatively described cam of the elastic force of the elastic parts.
3. support device according to claim 1 or 2, which is characterized in that the flexible connecting member include chain, rope or
Band.
4. 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；
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.
5. support device according to claim 4, which is characterized in that the spring is extension spring；The extension spring
Elastic force increase accordingly with the elongation of the extension spring, accordingly reduced with the shortening of the extension spring.
6. support device according to claim 4, which is characterized in that first flexible connector and the holding mechanism
It is connected by adjustable component；
The adjustable component can adjust the distance between first flexible connector and second flexible connector, from
And makes the spring elongation or shorten to change the elastic force of the spring.
7. support device according to claim 6, which is characterized in that the adjustable component include adjustable supporting member and
Adjustable screw；
In the holding mechanism outside, first flexible connector is arranged in the receiving for the adjustable supporting member setting
Inside mechanism；
The adjustable supporting member is abutted or is connected on the holding mechanism or the adjustable supporting member and the receiving
Mechanism is integrated；
First flexible connector, which is fixedly installed nut or first flexible connector, has threaded hole；
The adjustable screw passes through the adjustable supporting member and is spirally connected with first flexible connector.
8. support device according to claim 1, which is characterized in that the holding mechanism is equipped with the up and down balance system machine
Structure；
Up and down balance system mechanism left and right in the holding mechanism is arranged in pairs.
9. support device according to claim 1, which is characterized in that between the holding mechanism and the fixing support rack
It is provided with sliding rail.
10. 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821347893.7U CN208764580U (en) | 2018-08-20 | 2018-08-20 | Support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821347893.7U CN208764580U (en) | 2018-08-20 | 2018-08-20 | Support device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208764580U true CN208764580U (en) | 2019-04-19 |
Family
ID=66132222
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821347893.7U Expired - Fee Related CN208764580U (en) | 2018-08-20 | 2018-08-20 | Support device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208764580U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112445268A (en) * | 2020-10-30 | 2021-03-05 | 江西昌河航空工业有限公司 | Rocker arm gravity balance mechanism |
-
2018
- 2018-08-20 CN CN201821347893.7U patent/CN208764580U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112445268A (en) * | 2020-10-30 | 2021-03-05 | 江西昌河航空工业有限公司 | Rocker arm gravity balance mechanism |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |