CN206669257U - A kind of double leval jib elevating mechanism - Google Patents
A kind of double leval jib elevating mechanism Download PDFInfo
- Publication number
- CN206669257U CN206669257U CN201720431945.8U CN201720431945U CN206669257U CN 206669257 U CN206669257 U CN 206669257U CN 201720431945 U CN201720431945 U CN 201720431945U CN 206669257 U CN206669257 U CN 206669257U
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- CN
- China
- Prior art keywords
- connecting shaft
- display screen
- double leval
- leval jib
- linking member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000007246 mechanism Effects 0.000 title claims abstract description 34
- 230000003028 elevating effect Effects 0.000 title claims abstract description 23
- 238000009434 installation Methods 0.000 claims description 24
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 22
- 239000007787 solid Substances 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a kind of double leval jib elevating mechanism, is related to support device for display screen technical field, and elevating mechanism includes display screen mounting seat, lifting unit and base；Display screen mounting seat can be arranged on the base up or down by the lifting unit；Lifting unit includes lifting linking member and double leval jib component；The both ends of lifting linking member are rotatably connected in display screen mounting seat and the base by the first connecting shaft and the second connecting shaft respectively, for adjusting the height of the display screen mounting seat；The double leval jib component is arranged between the display screen mounting seat and the base, for adjusting or keeping the luffing angle of the display screen mounting seat.Double leval jib elevating mechanism provided by the utility model is simple in construction, easy to use, and cost of manufacture and maintenance cost are lower.
Description
Technical field
Support device for display screen technical field is the utility model is related to, especially relates to a kind of double leval jib elevating mechanism.
Background technology
In order that the position of display can quickly adjust the position that display is put according to the difference of user
And its height, it is adapted to viewing needs, display needs supporting support meanss to be supported.The quality of support meanss directly affects
To the quality of complete machine, rational support meanss are not only able to provide more preferable more comfortable use condition to user, while also can
It is enough to reduce the size to greatest extent, save space.
There are many support meanss in the market, supported using drawing and pulling type structure, and by the fixed force spring of inside
The weight of display, but its is complicated, manufacturing cost is high, is not easy to safeguard.
Utility model content
The purpose of this utility model is to provide a kind of double leval jib elevating mechanism, to solve structure present in prior art
Complexity, manufacturing cost is high, the problem of being not easy to safeguard.
In order to solve the above technical problems, a kind of double leval jib elevating mechanism provided by the utility model, including：Display screen is installed
Seat, lifting unit and base；
The display screen mounting seat can be arranged on the base up or down by the lifting unit；
The lifting unit includes lifting linking member and double leval jib component；
The both ends of the lifting linking member are rotatably connected to described aobvious by the first connecting shaft and the second connecting shaft respectively
In display screen mounting seat and the base, for adjusting the height of the display screen mounting seat；
The double leval jib component is arranged between the display screen mounting seat and the base, for adjusting or keeping institute
State the luffing angle of display screen mounting seat.
Further, the double leval jib component includes：First connecting rod, second connecting rod, the first connecting plate and the second connecting plate；
The both ends of the first connecting rod are rotatably connected to described first by the first pivot and the second pivot respectively and connected
On fishplate bar and the second connecting plate；
The both ends of the second connecting rod are rotatably connected to described first by the 3rd pivot and the 4th pivot respectively and connected
On fishplate bar and the second connecting plate.
Further, first connecting plate and the display screen mounting seat are relative in the circumference of first connecting shaft
It is fixedly connected；
First connecting plate can relatively rotate with the lifting linking member in the circumference of first connecting shaft；
Second connecting plate can relatively rotate with the lifting linking member in the circumference of second connecting shaft.
Further, be provided with first connecting plate the first axis hole, first pivot and the 3rd pivot with
It is symmetrical arranged centered on first axis hole；
The second axis hole is provided with second connecting plate, second pivot and the 4th pivot are with second axle
It is symmetrical arranged centered on hole；
First connecting plate is mounted in first connecting shaft by first shaft hole sleeve,
Second connecting plate is by second shaft hole sleeve in second connecting shaft.
Further, first connecting shaft and the second connecting shaft are rotationally inserted into the lifting linking member both ends respectively
Mounting hole in.
Further, in the first connecting shaft circumference, first connecting plate and display screen mounting seat difference
It is relatively fixed and is connected with first connecting shaft, the lifting linking member is relatively rotated with first connecting shaft and connected；Described
In second connecting shaft circumference, second connecting plate is relatively fixed with second connecting shaft and is connected, the lifting linking member and institute
State the second connecting shaft and relatively rotate connection.
Further, first axis hole and the cross section of first connecting shaft are mutually correspondingly arranged, both section shapes
Shape is the non-circular shape for preventing both from relatively rotating.
Further, second axis hole and the cross section of second connecting shaft are mutually correspondingly arranged, both section shapes
Shape is the non-circular shape for preventing both from relatively rotating.
Further, it is axially disposed in first connecting shaft and/or second connecting shaft to have tangential section.
Further, the center spacing between first pivot and the 3rd pivot is the first spacing, second pivot
And the 4th center spacing between pivot is the second spacing.
Further, first spacing and the second spacing are equal or unequal.
When two spacing are identical, when adjusting display screen height by rotating lifting linking member, fixed not in the first connecting shaft
In the case of turning, the luffing angle of display screen does not change；
And when two spacing differences, when adjusting display screen height by rotating lifting linking member, consolidate in the first connecting shaft
Determine in the case of not turning, the luffing angle of display screen changes therewith.
Above-mentioned two situations, it can be set according to the difference of customer demand.
Further, installation pedestal is provided with the base, second connecting shaft is detachable by nut and pad
Ground is arranged in the installation pedestal.
By loosening nut, the second connecting shaft is rotated, the second connecting shaft drives second connecting plate to rotate, and then passes through
The luffing angle of first connecting rod and second connecting rod regulation display screen mounting seat.
Further, torsion spring is provided between the display screen mounting seat and the lifting linking member, torsion spring is intended to force
The display screen mounting seat is swung up, and then provides moment of torsion for supporting display screen.
Further, also set up on the base for forcing the lifting linking member to swing and then adjusting the display screen peace
Fill the lift drive mechanism of seat height degree.
Further, the lift drive mechanism includes executing agency and the first gear to cooperate and the second tooth
Wheel construction；First gear is set with second connecting shaft, is fixedly connected in the circumferential with the lifting linking member and then is used for band
The dynamic lifting linking member is swung；
The executing agency is connected with the second gear structure, and drives the first gear by second gear structure
Rotate.
Further, the second gear structure is spur rack, and spur rack is slidably disposed on the base.
Further, the executing agency includes connecting the threaded connector of the spur rack and the base, the spiral shell
Glide direction of the line connector along the spur rack is laid, and the spur rack can be forced by unscrewing or screw the threaded connector
Slide, and then drive the lifting linking member to swing by the first gear.
Wherein, the threaded connector is screw, bolt or is threaded connecting rod of structure etc..
Further, the executing agency includes the sliding block being slidably arranged on the base,
The threaded connector is connected by the sliding block with the spur rack；
Extension spring is provided between the sliding block and the spur rack, extension spring is operated in extended state and is intended to lead to
Cross the first gear and spur rack forces the lifting linking member to move up, and then the power of supporting display screen is provided.
Riser is provided with the base, screwed hole is provided with the sliding block, threaded connector front end is stood through described
Connecting hole on plate is screwed in the screwed hole；The bulge-structures such as the nut or nut of threaded connector rear end abut in riser
On.
Further, be also set with helical spring in second connecting shaft, helical spring be arranged on the second connecting shaft with
Between the base, helical spring is operated in compressive state and is intended to increase the friction between the second connecting shaft and the base
Power, and then prevent second connecting shaft from rotating.
Specifically, the helical spring is intended to force the first end of second connecting shaft against the installation pedestal
On, for increasing the frictional force between the second connecting shaft and the installation pedestal, so as to effectively prevent the second connecting shaft from rotating, that is, become
To in the luffing angle for keeping display screen mounting seat.
Overcome the frictional force using external force, then can adjust the luffing angle of display screen.
Further, the helical spring is arranged between the installation pedestal and the lifting linking member, forces lifting to connect
Bar sticks together with second connecting plate.
Further, being also set with second connecting shaft can be along its first backing plate in axial sliding；In the second connection
In the circumference of axle, the first backing plate is relatively fixed with second connecting shaft and is connected；
First backing plate is provided with the first cam structure in the installation pedestal side, is provided with the installation pedestal
The second cam structure being engaged with first cam structure；First backing plate is arranged on the helical spring and the installation base
Between seat, helical spring is intended to force first cam structure to be intermeshed for being intended to prevent with the second cam mechanism
Second connecting shaft rotates.
By setting cam structure, further effectively the second connecting shaft is prevented to rotate, so as to effectively keep bowing for display screen
Elevation angle degree, the resistance of helical spring is overcome by external force, the first backing plate slides axially, the first cam structure and described second convex
Wheel construction is disengaged from, and so as to rotatable second connecting shaft, adjusts the luffing angle of display screen.
Using above-mentioned technical proposal, the utility model has the advantages that：
Double leval jib elevating mechanism provided by the utility model is simple in construction, easy to use, and cost of manufacture and maintenance into
This is lower.
Brief description of the drawings
Below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the stereogram for the double leval jib elevating mechanism that the utility model embodiment provides；
Fig. 2 is the structure chart for the double leval jib elevating mechanism for being provided with display screen that the utility model embodiment provides；
Fig. 3 is the structural representation of lifting unit in the utility model embodiment；
Fig. 4 is the exploded view of lifting unit in the utility model embodiment；
Fig. 5 is the structural representation of double leval jib component in the utility model embodiment；
Fig. 6 is the structural representation of lift drive mechanism in the utility model embodiment.
Reference：
1- display screens；10- bases；11- installation pedestals；20- display screen mounting seats；21- torsion springs；30- lifting units；31-
Lifting linking member；The connecting shafts of 32- first；The connecting shafts of 33- second；34- first connecting rods；35- second connecting rods；The connecting plates of 36- first；
The pivots of 36a- first；The pivots of 36b- the 3rd；The axis holes of 36c- first；The connecting plates of 37- second；The pivots of 37a- second；The pivots of 37b- the 4th
Axle；The axis holes of 37c- second；40- lift drive mechanisms；41- spur racks；42- first gears；43- threaded connectors；44- sliding blocks；
45- extension springs；50- helical springs；The cam structures of 51- first；The cam structures of 52- second.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Explanation is further explained to the utility model with reference to specific embodiment.
As shown in figure 1, a kind of double leval jib elevating mechanism that the present embodiment provides, including：Display screen mounting seat 20, lifting are single
Member 30 and base 10.
As shown in Fig. 2 display screen 1 is arranged in display screen mounting seat 20.
Display screen mounting seat 20 can be arranged on base 10 up or down by lifting unit 30；
As in Figure 3-5, lifting unit 30 includes lifting linking member 31 and double leval jib component；
The both ends of lifting linking member 31 are rotatably connected to display by the first connecting shaft 32 and the second connecting shaft 33 respectively
Shield on mounting seat 20 and base 10, for adjusting the height of display screen mounting seat 20；
Double leval jib component is arranged between display screen mounting seat 20 and base 10, for adjusting or keeping display screen to install
The luffing angle of seat 20.
Double leval jib component includes：First connecting rod 34, second connecting rod 35, the first connecting plate 36 and the second connecting plate 37；
The both ends of first connecting rod 34 are rotatably connected to the first company by the first pivot 36a and the second pivot 37a respectively
On the connecting plate 37 of fishplate bar 36 and second；
The both ends of second connecting rod 35 are rotatably connected to the first company by the 3rd pivot 36b and the 4th pivot 37b respectively
On the connecting plate 37 of fishplate bar 36 and second.
First connecting plate 36 is relatively fixed in the circumference of the first connecting shaft 32 with display screen mounting seat 20 and is connected；
First connecting plate 36 can relatively rotate with lifting linking member 31 in the circumference of the first connecting shaft 32；
Second connecting plate 37 can relatively rotate with lifting linking member 31 in the circumference of the second connecting shaft 33.
The first axis hole 36c is provided with first connecting plate 36, the first pivot 36a and the 3rd pivot 36b are with the first axis hole 36c
Centered on be symmetrical arranged；
The second axis hole 37c is provided with second connecting plate 37, the second pivot 37a and the 4th pivot 37b are with the second axis hole 37c
Centered on be symmetrical arranged；
First connecting plate 36 is sleeved in the first connecting shaft 32 by the first axis hole 36c,
Second connecting plate 37 is sleeved in the second connecting shaft 33 by the second axis hole 37c.
First connecting shaft 32 and the second connecting shaft 33 are rotationally inserted into the mounting hole at the both ends of lifting linking member 31 respectively.
In the circumference of the first connecting shaft 32, the first connecting plate 36 and display screen mounting seat 20 respectively with the phase of the first connecting shaft 32
To being fixedly connected, the connecting shaft 32 of lifting linking member 31 and first relatively rotates connection.
First axis hole 36c and the cross section of the first connecting shaft 32 are mutually correspondingly arranged, and both cross sectional shapes are to prevent both
The non-circular shape of relative rotation.
In the circumference of the second connecting shaft 33, the second connecting plate 37 is relatively fixed with the second connecting shaft 33 and is connected, lifting linking member
31 and second connecting shaft 33 relatively rotate connect.
Second axis hole 37c and the cross section of the second connecting shaft 33 are mutually correspondingly arranged, and both cross sectional shapes are to prevent both
The non-circular shape of relative rotation.
It is axially disposed in first connecting shaft 32 and the second connecting shaft 33 to have tangential section.
Center spacing between first pivot 36a and the 3rd pivot 36b is the first spacing, the second pivot 37a and the 4th pivot
Center spacing between axle 37b is the second spacing.First spacing and the second spacing are equal or unequal.
It is solid in the first connecting shaft 32 when adjusting display screen height by rotating lifting linking member 31 when two spacing are identical
Determine in the case of not turning, the luffing angle of display screen does not change；
And when two spacing differences, when adjusting display screen height by rotating lifting linking member 31, in the first connecting shaft
In the case that 32 maintain static, the luffing angle of display screen changes therewith.
Above-mentioned two situations, it can be set according to the difference of customer demand.
Installation pedestal 11 is provided with base 10, the second connecting shaft 33 is removably disposed in installation by nut and pad
On pedestal 11.
Torsion spring 21 is provided between display screen mounting seat 20 and lifting linking member 31, torsion spring 21 is intended to force display screen to be installed
Seat 20 is swung up, and then provides moment of torsion for supporting display screen.
As shown in figs. 4 and 6, also set up on base 10 for forcing lifting linking member 31 to swing and then adjusting display screen mounting seat
The lift drive mechanism 40 of 20 height.
Lift drive mechanism 40 includes executing agency and the first gear 42 and second gear structure that cooperate；The
One gear 42 is set with the second connecting shaft 33, is fixedly connected and then with lifting linking member 31 for driving lifting linking member 31 in the circumferential
Swing；
Executing agency is connected with second gear structure, and drives first gear 42 to rotate by second gear structure.
Second gear structure is spur rack 41, and spur rack 41 is slidably disposed on base 10.
Executing agency includes the threaded connector 43 of connection spur rack 41 and base 10, and threaded connector 43 is along spur rack 41
Glide direction lay, unscrew or screw thread connector 43 can force spur rack 41 to slide, and then pass through first gear 42
Lifting linking member 31 is driven to swing.
Wherein, threaded connector 43 is screw, bolt or is threaded connecting rod of structure etc..
Executing agency includes the sliding block 44 being slidably arranged on base 10,
Threaded connector 43 is connected by sliding block 44 with spur rack 41；
Extension spring 45 is provided between sliding block 44 and spur rack 41, extension spring 45 is operated in extended state and is intended to lead to
Cross first gear 42 and spur rack 41 forces lifting linking member 31 to move up, and then the power of supporting display screen is provided.
Riser is provided with base 10, screwed hole is provided with sliding block 44, the front end of threaded connector 43 is passed through on riser
Connecting hole is screwed in screwed hole；The bulge-structures such as the nut or nut of the rear end of threaded connector 43 are abutted on riser.
Helical spring 50 is also set with second connecting shaft 33, helical spring 50 is arranged on the second connecting shaft 33 and base 10
Between, helical spring 50 is operated in compressive state and is intended to increase the frictional force between the second connecting shaft 33 and base 10, and then
The second connecting shaft 33 is prevented to rotate.
Specifically, helical spring 50 is intended to force the first end of the second connecting shaft 33 to be used against in installation pedestal 11
In increasing the frictional force between the second connecting shaft 33 and installation pedestal 11, so as to effectively prevent the second connecting shaft 33 from rotating, that is, tend to
In the luffing angle for keeping display screen mounting seat 20.
Overcome the frictional force using external force, then can adjust the luffing angle of display screen.
Helical spring 50 is arranged between installation pedestal 11 and lifting linking member 31, forces the connecting plate of lifting linking member 31 and second
37 stick together.
Also being set with second connecting shaft 33 can be along its first backing plate in axial sliding；In the circumference of the second connecting shaft 33
On, the first backing plate is relatively fixed with the second connecting shaft 33 and is connected；
First backing plate is provided with the first cam structure 51 in the side of installation pedestal 11, is provided with installation pedestal 11 and first
The second cam structure 52 that cam structure 51 is engaged；First backing plate is arranged between helical spring 50 and installation pedestal 11, spiral shell
Rotation spring 50 is intended to force the first cam structure 51 to be intermeshed for being intended to prevent second from being connected with the second cam mechanism
Axle 33 rotates.
By setting cam structure, further effectively the second connecting shaft 33 is prevented to rotate, so as to effectively keep display screen
Luffing angle, the resistance of helical spring 50 is overcome by external force, the first backing plate slides axially, the first cam structure 51 and second
Cam structure 52 is disengaged from, and so as to rotatable second connecting shaft 33, adjusts the luffing angle of display screen.
Double leval jib elevating mechanism provided by the utility model is simple in construction, easy to use, and cost of manufacture and maintenance into
This is lower.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
- A kind of 1. double leval jib elevating mechanism, it is characterised in that including：Display screen mounting seat, lifting unit and base；The display screen mounting seat can be arranged on the base up or down by the lifting unit；The lifting unit includes lifting linking member and double leval jib component；The both ends of the lifting linking member are rotatably connected to the display screen by the first connecting shaft and the second connecting shaft respectively In mounting seat and the base, for adjusting the height of the display screen mounting seat；The double leval jib component is arranged between the display screen mounting seat and the base, described aobvious for adjusting or keeping The luffing angle of display screen mounting seat.
- 2. double leval jib elevating mechanism according to claim 1, it is characterised in that the double leval jib component includes：First connects Bar, second connecting rod, the first connecting plate and the second connecting plate；The both ends of the first connecting rod are rotatably connected to first connecting plate by the first pivot and the second pivot respectively On the second connecting plate；The both ends of the second connecting rod are rotatably connected to first connecting plate by the 3rd pivot and the 4th pivot respectively On the second connecting plate；First connecting plate is relatively fixed in the circumference of first connecting shaft with the display screen mounting seat and is connected；First connecting plate can relatively rotate with the lifting linking member in the circumference of first connecting shaft；Second connecting plate can relatively rotate with the lifting linking member in the circumference of second connecting shaft.
- 3. double leval jib elevating mechanism according to claim 2, it is characterised in that be provided with first on first connecting plate Axis hole, first pivot and the 3rd pivot are symmetrical arranged centered on first axis hole；Be provided with second connecting plate the second axis hole, second pivot and the 4th pivot using second axis hole as Center symmetric setting；First connecting plate is mounted in first connecting shaft by first shaft hole sleeve,Second connecting plate is by second shaft hole sleeve in second connecting shaft；First connecting shaft and the second connecting shaft are rotationally inserted into the mounting hole at the lifting linking member both ends respectively；In the first connecting shaft circumference, first connecting plate and the display screen mounting seat are connected with described first respectively Axle is relatively fixed connection, and the lifting linking member is relatively rotated with first connecting shaft and connected；In the second connecting shaft circumference, second connecting plate is relatively fixed with second connecting shaft and is connected, the liter Drop connecting rod and relatively rotate connection with second connecting shaft.
- 4. double leval jib elevating mechanism according to claim 2, it is characterised in that between first pivot and the 3rd pivot Center spacing be the first spacing, the center spacing between second pivot and the 4th pivot is the second spacing；Described first Spacing and the second spacing are equal or unequal.
- 5. double leval jib elevating mechanism according to claim 1, it is characterised in that installation pedestal is provided with the base, Second connecting shaft is removably disposed in the installation pedestal by nut and pad.
- 6. double leval jib elevating mechanism according to claim 1, it is characterised in that also set up on the base for forcing institute Lifting linking member is stated to swing and then adjust the lift drive mechanism of the display screen mounting seat height；The lift drive mechanism includes executing agency and the first gear and second gear structure that cooperate；First tooth Wheel is set with second connecting shaft, is fixedly connected and then with the lifting linking member for driving the lifting linking member in the circumferential Swing；The executing agency is connected with the second gear structure, and drives the first gear to turn by second gear structure It is dynamic.
- 7. double leval jib elevating mechanism according to claim 6, it is characterised in that the second gear structure is spur rack, Spur rack is slidably disposed on the base；The executing agency includes connecting the screw thread of the spur rack and the base Connector, glide direction of the threaded connector along the spur rack are laid, and unscrewing or screw the threaded connector can Force the spur rack to slide, and then drive the lifting linking member to swing by the first gear.
- 8. double leval jib elevating mechanism according to claim 7, it is characterised in that the executing agency includes slidably setting Sliding block on the base,The threaded connector is connected by the sliding block with the spur rack；Extension spring is provided between the sliding block and the spur rack, extension spring is operated in extended state and is intended to pass through institute State first gear and spur rack forces the lifting linking member to move up, and then the power of supporting display screen is provided.
- 9. double leval jib elevating mechanism according to claim 5, it is characterised in that be also set with spiral shell in second connecting shaft Spring is revolved, helical spring is arranged between the second connecting shaft and the installation pedestal, and helical spring is operated in compressive state trend Frictional force between the second connecting shaft of increase and the installation pedestal, and then prevent second connecting shaft from rotating.
- 10. double leval jib elevating mechanism according to claim 9, it is characterised in that be also set with second connecting shaft Can be along its first backing plate in axial sliding；In the circumference of the second connecting shaft, the first backing plate and second connecting shaft are relative solid Fixed connection；First backing plate is provided with the first cam structure in the installation pedestal side, is provided with the installation pedestal and institute State the second cam structure that the first cam structure is engaged；First backing plate be arranged on the helical spring and the installation pedestal it Between, helical spring is intended to force first cam structure and the second cam mechanism to be intermeshed for being intended to described in prevention Second connecting shaft rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720431945.8U CN206669257U (en) | 2017-04-21 | 2017-04-21 | A kind of double leval jib elevating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720431945.8U CN206669257U (en) | 2017-04-21 | 2017-04-21 | A kind of double leval jib elevating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206669257U true CN206669257U (en) | 2017-11-24 |
Family
ID=60375894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720431945.8U Expired - Fee Related CN206669257U (en) | 2017-04-21 | 2017-04-21 | A kind of double leval jib elevating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206669257U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110764571A (en) * | 2018-07-27 | 2020-02-07 | 中国长城科技集团股份有限公司 | all-in-one computer |
| CN111706761A (en) * | 2020-06-23 | 2020-09-25 | 东莞市宏联电子有限公司 | Four-bar linkage lifting support suitable for display and electronic equipment |
| TWI726565B (en) * | 2020-01-02 | 2021-05-01 | 佳世達科技股份有限公司 | Support base and display device |
-
2017
- 2017-04-21 CN CN201720431945.8U patent/CN206669257U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110764571A (en) * | 2018-07-27 | 2020-02-07 | 中国长城科技集团股份有限公司 | all-in-one computer |
| TWI726565B (en) * | 2020-01-02 | 2021-05-01 | 佳世達科技股份有限公司 | Support base and display device |
| US11287844B2 (en) | 2020-01-02 | 2022-03-29 | Qisda Corporation | Support base and display device |
| CN111706761A (en) * | 2020-06-23 | 2020-09-25 | 东莞市宏联电子有限公司 | Four-bar linkage lifting support suitable for display and electronic equipment |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20171124 Termination date: 20210421 |