CN109143759A - A kind of pedestal and projection device of projection arrangement - Google Patents
A kind of pedestal and projection device of projection arrangement Download PDFInfo
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- CN109143759A CN109143759A CN201811038410.XA CN201811038410A CN109143759A CN 109143759 A CN109143759 A CN 109143759A CN 201811038410 A CN201811038410 A CN 201811038410A CN 109143759 A CN109143759 A CN 109143759A
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- driving unit
- sliding rail
- projection arrangement
- pedestal
- unit
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
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- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Abstract
The present invention provides a kind of pedestal of projection arrangement, by laying the first sliding rail and second sliding rail and third sliding rail perpendicular with first sliding rail, it is parallel and be movably coupled on the first sliding rail between second sliding rail and third sliding rail, and it is moved on the second sliding rail and third sliding rail and is connected with the first slide unit and the second slide unit, second driving unit is corresponding with third driving unit to be fixed on the first slide unit and the second slide unit, first slide unit is moved under the control of third driving unit along the second sliding rail and third sliding rail in the second driving unit respectively with the second slide unit, top plate is rotatably connected to the second driving unit and third driving unit, first driving unit is for driving the second sliding rail to be moved along first sliding rail, can be achieved the translation in three directions of control projection arrangement or The adjusting of rotary freedom is not necessarily to manual mobile projector device, simple to operate quick.
Description
Technical field
The present invention relates to projection device design field, in particular to the pedestal and projection device of a kind of projection arrangement.
Background technique
Due to the difference that the extraneous loading end for placing projection device is uneven or projection arrangement is in structure and assembly
It is different, cause the projected picture region of different projection arrangements to have differences, existing projection device in practical projection process with
And using preceding requiring to be debugged, so that projected picture projects the screen in specified region or being fixed on the wall
On.Adjustment means common at present are adjusted on six-freedom degree to the position of projection arrangement in space, to project
Device is by being located at its projected picture to specified region along translation of axes or around the rotation of reference axis.
In the prior art to the debugging of projection arrangement mainly by the way of manually adjusting base screw to projection arrangement
The parameters such as pitch angle and left and right horizontal angle of deviation are adjusted, and have the following disadvantages: that on the one hand, user is adjusting using such mode
Projected picture can not be monitored when whole screw in real time, entire debugging process is cumbersome lengthy and jumbled and takes a long time, the operation to user
Level requirement is higher；On the other hand, since user inevitably needs frequently to move projection arrangement during the adjustment, tool
(usual projection arrangement makes user need to consume great effort together with pedestal weight in 10kg or more), seriously affects for some self weights
User experience, or even also will cause the damage to loading end or projection arrangement.
Summary of the invention
In view of the above-mentioned problems, the present patent application provides the pedestal and projection device of a kind of projection arrangement, user is effectively solved
It cannot be considered in terms of projected picture when adjusting the base screw of projection arrangement, and need the problem of investing enormous time and effort,
It is simple to operate quick, improve user experience.
The application first aspect provides a kind of pedestal of projection arrangement, including base body and is located at the base body
The top plate of top, the top plate include bottom plate, are arranged in the bottom plate edge for carrying the projection arrangement, the base body
The vertical plate in portion and the bottom plate and the vertical plate enclose the rectangular enclosure being set as, further includes:
At least three sliding rails in the rectangular enclosure, at least three sliding rails include the first sliding rail, the second sliding rail with
And third sliding rail, the direction of first side of first sliding rail along the bottom plate are laid, second sliding rail and the third
Sliding rail is parallel and is each perpendicular to lay with first sliding rail, and first sliding rail is fixed on the bottom plate, and described second
Sliding rail and the third sliding rail are movably coupled on first sliding rail, and the is movably connected on second sliding rail
One slide unit is movably connected with the second slide unit on the third sliding rail.
At least three driving units, at least three driving unit include the first driving unit, the second driving unit with
And third driving unit, first driving unit are fixed on the bottom plate, first driving unit is described for controlling
Second sliding rail is slided along the length direction of first sliding rail, second driving unit fixation corresponding with third driving unit
On first slide unit and the second slide unit, second driving unit exists for controlling first slide unit
It is moved on second sliding rail, the third driving unit is moved up for controlling second slide unit in the third sliding rail
It is dynamic.
The top plate is rotatably attached on second driving unit and the third driving unit.
Further, the pedestal of the projection arrangement further include: the 4th driving unit, the 5th driving unit and the 6th driving
Unit, the 4th driving unit, the 5th driving unit and the 6th driving unit it is triangular in shape be distributed in it is described
It is fixedly connected on bottom plate and with the bottom plate.
Further, the pedestal of the projection arrangement further include: three lifting devices being fixed below the bottom plate, institute
The 4th driving unit, the 5th driving unit and the 6th driving unit is stated to be respectively used to control three lifting devices
Height.
Further, first driving unit, second driving unit, the third driving unit, the described 4th
Driving unit, the 5th driving unit and the 6th driving unit are motor.
Further, the lifting device includes the mandril equipped with internal thread hole, and single with the 4th driving respectively
The screw rod that member, the shaft of the 5th driving unit, the 6th driving unit are fixedly connected, the screw rod is for screwing in the mandril to adjust
The bottom plate is saved respectively the distance between with the mandril.
Further, the first strip groove is offered on second sliding rail, the side of first strip groove is provided with
One rack gear, first gear is fixed in the shaft of second driving unit, and the first gear and first rack gear match
It closes, so that the shaft of second driving unit drives first slide unit along institute when moving in first strip groove
State the sliding of the second sliding rail.
Further, the second strip groove is offered on the third sliding rail, the side of second strip groove is provided with
Two rack gears, second gear is fixed in the shaft of the third driving unit, and the second gear and second rack gear match
It closes, so that the shaft of the third driving unit drives second slide unit along institute when moving in the second strip groove
State the sliding of third sliding rail.
Further, first slide unit and second slide unit respectively include slide, from the slide two
Lateral extended bending, and the positive stop strip being fixedly connected with the bending, the slide, the bending and the limit
Position item forms sliding-rail groove, and the sliding-rail groove with second sliding rail, third sliding rail for matching respectively.
Further, be provided with spring leaf in the sliding-rail groove, the spring leaf be respectively used to adjust the sliding-rail groove with
Tightness between second sliding rail or the third sliding rail.
Further, first through hole and the second through-hole, the first through hole and second through-hole are opened up on the top plate
It is respectively used to accommodate the shaft of second driving unit Yu the third driving unit.
Further, it is connect by cam with link mechanism between first driving unit and second sliding rail, institute
The one end for stating cam is fixedly connected with the shaft of first driving unit, one end of the other end of the cam and the connecting rod
Rotatable connection, the other end of the connecting rod and the rotatable connection of the second sliding rail.
It further, further include remote control unit, for receiving remote signal, the remote signal is used for the remote control unit
Control first driving unit, second driving unit, the third driving unit, the 4th driving unit, described
The operation of 5th driving unit and the 6th driving unit.
From the above technical scheme, the pedestal and projection dress for a kind of projection arrangement that the present patent application first aspect provides
It sets, by laying the first sliding rail and second sliding rail and third sliding rail perpendicular with first sliding rail, the second sliding rail and the
It is parallel and be movably coupled on the first sliding rail between three sliding rails, and moved on the second sliding rail and third sliding rail
It is connected with the first slide unit and the second slide unit, the second driving unit is corresponding with third driving unit to be fixed on the first cunning
On module unit and the second slide unit, the first slide unit and the second slide unit drive in the second driving unit and third respectively
It is moved under the control of unit along the second sliding rail and third sliding rail, top plate is rotatably connected to the second driving unit and third is driven
Moving cell is, it can be achieved that control projection arrangement translates along the length direction of the second sliding rail and third sliding rail and perpendicular to the second sliding rail
It is rotated with the direction of plane where third sliding rail；First driving unit is for driving the second sliding rail to be moved along first sliding rail
It moves, it can be achieved that control projection arrangement takes into account projected picture, and be not necessarily to along the length direction translation of the first sliding rail during the adjustment
Manual mobile projector device completes entire adjustment process by driving device, simple to operate quick.
The application second aspect also provides the pedestal of another projection arrangement, including base body and is located at the pedestal
Top plate above ontology, the top plate include bottom plate, are arranged at the bottom for carrying the projection arrangement, the base body
The vertical plate of plate edge and the bottom plate and the vertical plate enclose the rectangular enclosure being set as, further includes: are located at the rectangular enclosure
Interior at least three sliding rails, at least three sliding rails include the first sliding rail, the second sliding rail and third sliding rail, and described first is sliding
Rail is laid along the direction of the first side of the bottom plate, and second sliding rail is parallel with the third sliding rail and is each perpendicular to institute
The laying of the first sliding rail is stated, first sliding rail is fixed on the bottom plate, and second sliding rail and the third sliding rail are removable
Be connected on first sliding rail.
At least three driving units, at least three driving unit include that first be fixedly connected on the bottom plate drives
Moving cell, the second driving unit and third driving unit, first driving unit, the second driving unit control first respectively
Idler wheel and the second idler wheel rotate, and first idler wheel stretches out being equidistant for the bottom plate, the third with second idler wheel
Driving unit is moved for controlling second sliding rail along the length direction of first sliding rail.
Second sliding rail is connect with the third sliding rail by the top plate.
Further, the pedestal of the projection arrangement further includes the 4th driving unit, the 5th driving unit and the 6th driving
Unit, the 4th driving unit are fixedly connected on second sliding rail, the 5th driving unit and the 6th driving
Unit is fixedly connected on the third sliding rail.
Further, the pedestal of the projection arrangement further includes at least three liftings being fixedly connected below the top plate
Device, the 4th driving unit, the 5th driving unit and the 6th driving unit are respectively used to control described three
The height of lifting device.
Further, first driving unit, second driving unit, the third driving unit, the described 4th
Driving unit, the 5th driving unit and the 6th driving unit are motor.
Further, the lifting device includes the mandril equipped with internal thread hole, the mandril and the fixed company of the top plate
It connects, and the screw rod being fixedly connected respectively with the shaft of the 4th driving unit, the 5th driving unit, the 6th driving unit,
The screw rod be used to screw in the internal thread hole of the mandril with adjust the top plate respectively with the 4th driving unit, described the
The distance between five driving units, described 6th driving unit.
Further, the bottom of second sliding rail is fixedly connected with feed screw nut, and the feed screw nut and lead screw match
It closes, one end of the lead screw is fixedly connected with the shaft of the third driving unit, and the other end and the bearing of the lead screw are fixed
Connection, the bearing are mounted on bearing block, and the bearing block is fixedly connected with the bottom plate, and the third driving unit turns
Axis controls the lead screw and is rotated such that second sliding rail is moved along first sliding rail.
Further, the pedestal of the projection arrangement further includes remote control unit, and the remote control unit is for receiving remote control letter
Number, the remote signal is for controlling first driving unit, second driving unit, the third driving unit, institute
State the operation of the 4th driving unit, the 5th driving unit and the 6th driving unit.
A kind of pedestal for projection arrangement that the application second aspect provides, projection arrangement are placed on top plate, pass through laying
First sliding rail and second sliding rail and third sliding rail perpendicular with first sliding rail, phase between the second sliding rail and third sliding rail
It is movably coupled on the first sliding rail in parallel and, third driving unit can control the second sliding rail along the length side of the first sliding rail
To movement, and the second sliding rail is connected with third sliding rail by top plate, realizes control projection arrangement along the length direction of the first sliding rail
Mobile effect；Further, the first driving unit and the second driving unit control turning for the idler wheel for stretching out in bottom plate respectively
It is dynamic, it is able to achieve control projection arrangement and is moved along the length direction of the second sliding rail and third sliding rail and along perpendicular to the second sliding rail
It is rotated with the direction of plane where third sliding rail, takes into account projected picture during the adjustment, and be not necessarily to manual mobile projector device,
Entire adjustment process is completed by driving device, it is simple to operate quick.
The application third aspect also provides a kind of projection device, including projection arrangement, further includes above-mentioned first aspect or
A kind of pedestal for projection arrangement that two aspects provide.
Detailed description of the invention
It in order to illustrate the embodiments of the present invention more clearly or scheme in the prior art, below will be to embodiment or existing skill
Attached drawing needed in art description does one and simply introduces, it should be apparent that, the accompanying drawings in the following description is of the invention
Some embodiments for those of ordinary skill in the art without any creative labor, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of the pedestal for projection arrangement that the embodiment of the present application one provides；
Fig. 2 is a kind of schematic diagram of internal structure of the pedestal for projection arrangement that the embodiment of the present application one provides；
Fig. 3 is a kind of structural schematic diagram of the lifting device of the pedestal for projection arrangement that the embodiment of the present application one provides；
Fig. 4 is a kind of slide unit of the pedestal for projection arrangement that the embodiment of the present application one provides and the assembling schematic diagram of sliding rail；
Fig. 5 is a kind of configuration schematic diagram of the slide unit of the pedestal for projection arrangement that the embodiment of the present application one provides；
Fig. 6 is a kind of cam link structural schematic diagram of the pedestal for projection arrangement that the embodiment of the present application one provides；
Fig. 7 is a kind of top plate of the pedestal for projection arrangement that the embodiment of the present application one provides and the structural schematic diagram of driving unit；
Fig. 8 is the overall schematic of the pedestal for another projection arrangement that the embodiment of the present application two provides；
Fig. 9 is the schematic diagram of internal structure of the pedestal for another projection arrangement that the embodiment of the present application two provides；
Figure 10 is the structural representation of the top plate and driving unit of the pedestal for another projection arrangement that the embodiment of the present application two provides
Figure；
Figure 11 is the structural representation of the lead screw and feed screw nut of the pedestal for another projection arrangement that the embodiment of the present application two provides
Figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.It should be noted that examples of the embodiments are shown in the accompanying drawings, wherein
Same or similar label indicates same or similar component or component with the same or similar functions from beginning to end.Lead to below
It crosses the embodiment being described with reference to the drawings to be exemplary, it is intended to be used to explain the present invention, and should not be understood as to limit of the invention
System.These specific embodiments can be combined with each other below, may be in certain realities for the same or similar concept or process
It applies in example and repeats no more.
In the description of the present invention, it is to be understood that, term " length ", " width ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", " hard straight ", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or component must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.
Term " first ", " second " be used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or
Implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or imply
Ground includes one or more of the features.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or
It is more than two.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected: can be directly connected, can also can be in two components indirectly connected through an intermediary
The interaction relationship of the connection in portion or two components.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
Embodiment one
Due in the prior art to the debugging of projection arrangement mainly by the way of manually adjusting base screw to projection arrangement
The parameters such as pitch angle and left and right horizontal angle of deviation are adjusted, and have the following disadvantages: that user projects in adjustment using such mode
It cannot be considered in terms of projected picture when the base screw of device, and need the problem of investing enormous time and effort, seriously affect use
Family experience, or even also will cause the damage to loading end or projection arrangement.
In view of the above-mentioned problems, the embodiment of the present application one provides a kind of pedestal of projection arrangement, attached drawing 1, pedestal packet are please referred to
Base body 11 and the top plate 12 above base body are included, top plate 12 is wrapped for carrying projection arrangement, base body 11
It includes bottom plate 111, the vertical plate 112 that bottom plate edge is set and bottom plate 111 and vertical plate 112 encloses the rectangular enclosure being set as, vertical plate
112 quantity can be arranged according to the shape of bottom plate 111, for example, bottom plate 111 is rectangle, then the quantity of vertical plate 112 can be 4,
It is separately fixed at the edge of the surrounding of bottom plate 111.
Further, at least three sliding rails 13 in rectangular enclosure, above-mentioned at least three sliding rails 13 include first sliding
Rail 131, the second sliding rail 132 and third sliding rail 133, wherein direction cloth of first sliding rail 131 along the first side a of bottom plate 111
If first side a can be any one side of rectangle for example, bottom plate 111 is in rectangle, a in Fig. 1 specifically can refer to,
Second sliding rail 132 is parallel with third sliding rail 133 and is each perpendicular to the laying of the first sliding rail 131, and the first sliding rail 131 is fixed on bottom plate
On 111, the second sliding rail 132 is movably coupled on the first sliding rail 131 with third sliding rail 133, removable on the second sliding rail 132
Dynamic is connected with the first slide unit 141, and the second slide unit 142 is movably connected on third sliding rail 133.
Illustratively, if the section of the first sliding rail 131 is in polygon (such as rectangle), the second sliding rail 132 and third are sliding
When rail 133 is connected on the first sliding rail 131, the second sliding rail 132 will not be rotated with third sliding rail 133 around the first sliding rail 131, energy
So that the second sliding rail 132 is mobile only along the length direction of the first sliding rail 131 with third sliding rail 133；The embodiment of the present application one is adopted
It is circular first sliding rail 131 with section, to guarantee the second sliding rail 132 and third the sliding rail 133 only edge on the first sliding rail 131
The length direction of first sliding rail 131 is mobile, avoid the second sliding rail 132 when being connected on the first sliding rail 131 with third sliding rail 133 around
First sliding rail 131 rotates, side setting fourth sliding rail 134 opposite in first side a of the embodiment of the present application one, and the 4th
Sliding rail 134 is fixed on bottom plate 111, and is parallel to the first sliding rail 131, the second sliding rail 132 and third sliding rail 133 movably with
The connection of 4th sliding rail 134 further enhances the second sliding rail 132 with third sliding rail 133 only along the length direction of the first sliding rail 131
Mobile reliability.It should be noted that even if the section of the first sliding rail 131 is other shapes, for the second sliding rail 132 of enhancing with
The reliability that third sliding rail 133 is only moved along the length direction of the first sliding rail 131, still settable 4th sliding rail 134 or more,
The application is without limitation.
Further, at least three driving units 15 are additionally provided in the pedestal, at least three driving units 15 include the
One driving unit 151, the second driving unit 152 and third driving unit 153, the first driving unit 151 are fixed on bottom plate 111
On, the first driving unit 151 is used to control the second sliding rail 132 and slides along the length direction of the first sliding rail 131, the second driving unit
152 it is corresponding with third driving unit 153 be separately fixed on the first slide unit 141 and the second slide unit 142, second drive
Moving cell 152 moves on the second sliding rail 132 for controlling the first slide unit 141, and third drives Unit 153 for controlling the
Two slide units 142 move on third sliding rail 133.
Further, top plate 12 is rotatably attached to the second driving unit 152 on third driving unit 153, that is, pushes up
Plate 12 can be rotated relative to the second driving unit 152 and third driving unit 153, to guarantee top plate 12 on base body
Smoothness is moved, multiple universal Luntais 19 are also laid on bottom plate 111, universal Luntai 19 is used to support top plate 12.
Further, the pedestal of projection arrangement provided by the embodiment of the present application one further includes the 4th driving unit 154, the
Five driving units 155 and the 6th driving unit 156, wherein the 4th driving unit 154, the 5th driving unit 155 and the 6th
Driving unit 156 is triangular in shape to be distributed on bottom plate 111, and is fixedly connected with bottom plate 111.Illustratively, the 4th driving unit
154 and the 5th driving unit 155 be located at the same side b of bottom plate 111, and the 6th driving unit 156 be located at it is opposite with side b
Side.
Further, the pedestal of projection arrangement provided by the embodiment of the present application one further includes being fixed on 111 lower section of bottom plate
Three lifting devices 16, wherein the 4th driving unit 154, the 5th driving unit 155 and the 6th driving unit 156 difference
For controlling the height of three lifting devices 16, illustratively, the 4th driving unit 154 the first lifting device 161 of control
Highly, the 5th driving unit 155 is used to control the height of the second lifting device (not shown), and the 6th driving unit 156 is used
In the height of control third lifting device (not shown).
Further, the first driving unit 151, the second driving unit 152, third driving unit 153, the 4th driving unit
154, the 5th driving unit 155 and the 6th driving unit 156 are motor, include shaft.
Further, the first lifting device 161 includes the mandril 1611 equipped with threaded hole, and with the 4th driving unit
The screw rod 1612 that 154 shafts are fixedly connected, screw rod 1612 are used to screw in the threaded hole of mandril 1611 with regulating base board 111 and mandril
The distance between 1611, to prevent the first lifting device 161 from skidding on supporting surface (such as desktop), in mandril 1611 and support
A non-slip mat 1613 is arranged in the contact position in face, which specifically can be used rubber material and be made.Second lifting device with
And the structure of third lifting device is same or like with the first lifting device 161 with connection relationship, the embodiment of the present application to this not
It repeats.
Further, the first strip groove 1321 is offered on the second sliding rail 132, the side of the first strip groove 1321 is provided with
First rack gear 1322 is fixed with first gear 1521, first gear 1521 and the first rack gear in the shaft of second driving unit 152
1322 match, so that the shaft of the second driving unit 152 drives the first slide unit when moving in the first strip groove 1321
141 slide along the second sliding rail 132.
Further, the second strip groove 1331 is offered on third sliding rail 133, the side of the second strip groove 1331 is provided with
Second rack gear 1332 is fixed with second gear 1531, second gear 1531 and the second rack gear in the shaft of third driving unit 153
1332 match, so that the shaft of third driving unit 153 drives 142 edge of the second sliding block when moving in the second strip groove 1331
Third sliding rail 133 slides.
Further, the first slide unit 141 upwardly extends the bending of setting including slide 1411, from 1411 two sides of slide
1412, and the positive stop strip 1413 being fixedly connected with bending 1412, slide 1411, bending 1412 and positive stop strip 1413 collectively constitute
Sliding-rail groove (not shown), the sliding-rail groove with the second sliding rail 132 for matching, so that the first slide unit 141 is removable
Be connected on the second sliding rail 132, the structure of the second slide unit 142 and connection relationship it is identical as the first slide unit 141 or
Similar, the embodiment of the present application does not repeat them here this.
Further, spring leaf 1414 is provided in sliding-rail groove, which slides for adjusting sliding-rail groove and second
Tightness between rail 132.
Further, open up first through hole 121 and the second through-hole (not shown) on top plate 12, first through hole 121 with
Second through-hole is respectively used to accommodate the shaft of the second driving unit 152 and third driving unit 153.
Further, it is connect by cam 17 with 18 mechanism of connecting rod between the first driving unit 151 and the second sliding rail 132,
One end of cam 17 is fixedly connected with the shaft of the first driving unit 151, and the other end of cam 17 can be revolved with one end of connecting rod 18
The connection turned, the other end of connecting rod 18 and the rotatable connection of the second sliding rail 132.
Further, the embodiment of the present application one further includes remote control unit (not shown), and the remote control unit is for receiving
Remote signal, remote signal is for controlling the first driving unit 151, the second driving unit 152, third driving unit the 153, the 4th
The operation of driving unit 154, the 5th driving unit 155 and the 6th driving unit 156, rotating forward including shaft invert and stop
Only.
In the following, the embodiment of the present application one provides a kind of pedestal of projection arrangement to the embodiment of the present application one in conjunction with attached drawing 1
Movement be illustrated with adjusting, in order to more easily describe the movement and adjustment of pedestal, established such as in the embodiment of the present application one
Three-dimensional system of coordinate shown in attached drawing 1, for details, reference can be made to X-axis, Y-axis and the Z-directions in attached drawing 1.
Specifically, since the 4th driving unit 154, the 5th driving unit 155 and the 6th driving unit 156 are respectively with three
A lifting device 16 is connected, specifically, (assuming that we provide that clockwise direction is when the shaft of the 4th driving unit 154 rotates forward
Just, counterclockwise it is anti-), since its shaft is fixedly connected with the screw rod 1612 of the first lifting device 161, then the 4th driving is single
Screw rod 1612 can be driven to rotate when the shaft rotation of member 154, the internal screw thread of external screw thread and mandril 1611 on screw rod 1612 matches
It closes, so that the depth that screw rod 1612 screws in mandril 1611 increases, to reduce between mandril 1611 and the 4th driving unit 154
Distance；Further, when the shaft of the 5th driving unit 155 and the 6th driving unit 156 also rotates forward simultaneously, can reduce
Whole height between pedestal and supporting surface (such as desktop), to control projection arrangement in the translation freedoms of Z-direction.
Illustratively, turn when above-mentioned 4th driving unit 154, the 5th driving unit 155 and the 6th driving unit 156
When axis inverts simultaneously, the whole height between pedestal and supporting surface (such as desktop) can be increased, to control projection arrangement in the side Z
To translation freedoms.
Illustratively, referring to Fig.1 in above-mentioned 4th driving unit 154, the 5th driving unit 155 and the 6th driving unit
The 156 position distribution relationship on bottom plate 111, when the 4th driving unit 154, the 5th driving unit 155 rotate forward simultaneously, and the 6th
When driving unit 156 inverts, alternatively, when the 4th driving unit 154, the 5th driving unit 155 invert simultaneously, and the 6th driving is single
When member 156 rotates forward, height of the pedestal in the X direction between side and supporting surface may make to increase, and the height of the other side subtracts
It is small, to control the adjustment of the rotary freedom of projection arrangement in the Y direction.
Illustratively, referring to Fig.1 in above-mentioned 4th driving unit 154, the 5th driving unit 155 and the 6th driving unit
The 156 position distribution relationship on bottom plate 111, when the 4th driving unit 154 rotates forward, and the 5th driving unit 155 inverts, or
Person may make pedestal side and branch in the Y direction when the 4th driving unit 154 inverts, and the 5th driving unit 155 rotates forward
Height between support face increases, and the height of the other side reduces, to control projection arrangement in the tune of the rotary freedom of X-direction
It is whole.
Illustratively, the first driving unit 151, can by cam 17 and 18 mechanism of connecting rod between the second sliding rail 132
The second sliding rail 132 is controlled to move on the first sliding rail 131, and between the second sliding rail 132 and third sliding rail 133 indirectly by
Top plate 12 connects, so that the second sliding rail 132 drives third sliding rail 133 to put down on the first sliding rail 131 when the first sliding rail 131 translates
It moves, to control projection arrangement in the adjustment of the translation freedoms of X-direction.
Illustratively, since the shaft of the second driving unit 152 is fixedly connected with first gear 1521, the second driving unit
152 shaft controllable first gear 1521 in rotation is moved along the first rack gear 1322, and the second driving unit 152 and first
Slide unit 141 is fixedly connected, to can control the first slide unit 141 along the when the shaft rotation of the second driving unit 152
Two sliding rails 132 are mobile；Similar, the shaft of third driving unit 153 can control the second sliding block 142 along third sliding rail in rotation
133 is mobile.Since top plate 12 is indirectly connect with the first slide unit 141 with the second sliding block 142, when the second driving unit 152,
When third driving unit 153 controls the first slide unit 141 and the second 142 movement in the same direction of sliding block respectively, projection arrangement can control
Translation freedoms in the Y direction；When the second driving unit 152, third driving unit 153 control the first slide unit 141 respectively
When moving backward with the second sliding block 142, projection arrangement can control in the rotary freedom of Z-direction.
In conclusion the advantageous effects for the technical solution that the embodiment of the present application one is proposed include:
A kind of pedestal for projection arrangement that the present patent application first aspect provides, by lay the first sliding rail and with this it is first sliding
Rail perpendicular the second sliding rail and third sliding rail, it is parallel between the second sliding rail and third sliding rail and be movably coupled to
On first sliding rail, and is moved on the second sliding rail and third sliding rail and is connected with the first slide unit and the second slide unit,
Second driving unit is corresponding with third driving unit to be fixed on the first slide unit and the second slide unit, the first sliding block list
Member is slided under the control of the second driving unit and third driving unit along the second sliding rail and third respectively with the second slide unit
Rail is mobile, and top plate is rotatably connected to the second driving unit and third driving unit, it can be achieved that control projection arrangement is along second
The translation of the length direction (i.e. Y-direction) of sliding rail and third sliding rail and the side perpendicular to plane where the second sliding rail and third sliding rail
It is rotated to (i.e. Z-direction)；First driving unit is for driving the second sliding rail to be moved along first sliding rail, it can be achieved that controlling throwing
Image device is translated along the length direction (i.e. X-direction) of the first sliding rail, takes into account projected picture during the adjustment, and without moving manually
Dynamic projection arrangement completes entire adjustment process by driving device, simple to operate quick.
Embodiment two
The embodiment of the present application two also provides the pedestal of another projection arrangement, please refers to attached drawing 5, which includes base body 21
And the top plate 22 above base body 21, top plate 22 for carrying projection arrangement, base body 21 include bottom plate 211,
The vertical plate 212 and bottom plate 211 that 211 edge of bottom plate is arranged in enclose the rectangular enclosure being set as with vertical plate 212 and (do not show in figure
Out), further includes:
At least three sliding rails in rectangular enclosure, above-mentioned at least three sliding rails include the first sliding rail 231, the second sliding rail 232
And third sliding rail 233, the first sliding rail 231 are laid along the direction of the first side a of bottom plate 211, the second sliding rail 232 and third are sliding
Rail 233 is parallel and is each perpendicular to the laying of the first sliding rail 231, and the first sliding rail 231 is fixed on bottom plate 211, the second sliding rail 232 with
Third sliding rail 233 is movably coupled on the first sliding rail 231.
Illustratively, if the section of the first sliding rail 231 is in polygon (such as rectangle), the second sliding rail 232 and third are sliding
When rail 233 is connected on the first sliding rail 231, the second sliding rail 232 will not be rotated with third sliding rail 233 around the first sliding rail 231, energy
So that the second sliding rail 232 is mobile only along the length direction of the first sliding rail 131 with third sliding rail 233；The embodiment of the present application two is adopted
It is circular first sliding rail 231 with section, to guarantee the second sliding rail 232 and third the sliding rail 233 only edge on the first sliding rail 231
The length direction of first sliding rail 231 is mobile, avoid the second sliding rail 232 when being connected on the first sliding rail 231 with third sliding rail 133 around
First sliding rail 231 rotates, side setting fourth sliding rail 234 opposite in first side a of the embodiment of the present application two, and the 4th
Sliding rail 234 is fixed on bottom plate 211, and is parallel to the first sliding rail 231, the second sliding rail 232 and third sliding rail 233 movably with
The connection of 4th sliding rail 234 further enhances the second sliding rail 232 with third sliding rail 233 only along the length direction of the first sliding rail 231
Mobile reliability.It should be noted that even if the section of the first sliding rail 231 is other shapes, for the second sliding rail 232 of enhancing with
The reliability that third sliding rail 233 is only moved along the length direction of the first sliding rail 231, still settable 4th sliding rail 234 or more,
The application is without limitation.
It further, further include at least three driving units in the pedestal, at least three driving units 25 include fixed connect
The first driving unit 251, the second driving unit 252 and third driving unit 253 on bottom plate 211 are connect, the first driving is single
First 251, second driving unit 252 controls the first idler wheel 241 respectively and the second idler wheel 242 rotates, the first idler wheel 241 and the second rolling
242 stretching bottom plate 211 of wheel is equidistant, and third driving unit 253 is for controlling the second sliding rail 232 along the first sliding rail 231
Length direction is mobile.
Further, the second sliding rail 232 is connected with third sliding rail 233 by top plate 22.
Further, the embodiment of the present application two further includes the 4th driving unit 254, the 5th driving unit 255 and the 6th drive
Moving cell 256, wherein the 4th driving unit 254 and the 5th driving unit 255 are fixedly connected on the second sliding rail 232, and the 6th drives
Moving cell 256 is fixedly connected on third sliding rail 233.
Further, the embodiment of the present application two further includes at least three lifting devices for being fixedly connected on 22 lower section of top plate,
4th driving unit 254, the 5th driving unit 255 and the 6th driving unit 256 are respectively used to the height of three lifting devices of control
Degree, specifically, the 4th driving unit 254 control the height of the first lifting device 261, and the 5th driving unit 255 is for controlling the
The height of two lifting device (not shown)s, the 6th driving unit 256 is for controlling third lifting device (not shown)
Height.
Further, the first driving unit 251, the second driving unit 252, third driving unit 253, the 4th driving unit
254, the 5th driving unit 255 and the 6th driving unit 256 are motor, include shaft.
Further, the first lifting device 261 includes the mandril 2611 equipped with internal thread hole, and mandril 2611 and top plate 22 are solid
Fixed connection, illustratively, the mode that gluing or screw fastening can be used between mandril 2611 and top plate 22 are fixedly connected, the application
Embodiment two is without limitation, and the screw rod 2612 being fixedly connected with the shaft of the 4th driving unit 254, and screw rod 2612 is used
In screw-in threaded hole to adjust the distance between top plate 22 and the 4th driving unit 254, the second lifting device 262 and third liter
The structure of falling unit 263 is same or like with the first lifting device 261 with connection relationship, and the embodiment of the present application does not do this superfluous
It states.
Further, the bottom of the second sliding rail 232 is fixedly connected with feed screw nut 2321, feed screw nut 2321 and lead screw
2322 match, and one end of lead screw 2322 is fixedly connected with the shaft of third driving unit 253, the other end and axis of lead screw 2322
It holds 2323 to be fixedly connected, which is mounted on bearing block 2324, and bearing block 2324 is fixedly connected with bottom plate 211, third
The shaft control lead screw 2322 of driving unit 253 is rotated such that the second sliding rail 232 for being connected with feed screw nut 2321 along the
One sliding rail 231 moves.
Further, the embodiment of the present application two provide a kind of projection arrangement pedestal further include remote control unit (in figure not
Show), the remote control unit is for receiving remote signal, and remote signal is for controlling the first driving unit 251, the second driving unit
252, the operation of third driving unit 253, the 4th driving unit 254, the 5th driving unit 255 and the 6th driving unit 256,
Specifically, forward and reverse and stopping including shaft.
Further, it to prevent top plate 22 from sliding from base body 21 in moving process, is also set up on bottom plate 211
There is dropproof sensor 27, is used to give a warning when top plate 22 detects that top plate 22 is fallen during the motion.
Further, universal wheel 28 is further fixed below bottom plate 211, which is used for when the first driving unit 251
When controlling the first idler wheel 241 and the second idler wheel 242 respectively with the second driving unit 252 and rotating, support and guide seats are played
Effect.
The movement and adjusting of a kind of pedestal of the projection arrangement provided with reference to the accompanying drawing the embodiment of the present application two carry out
Illustrate, in order to more easily describe the movement and adjustment of pedestal, establishes three-dimensional as shown in Fig. 1 in the embodiment of the present application one
Coordinate system, for details, reference can be made to X-axis, Y-axis and the Z-directions in attached drawing 1.
Illustratively, (assuming that we provide positive clockwise, counterclockwise when the shaft of the 4th driving unit 254 rotates forward
Direction is anti-), since its shaft is fixedly connected with the screw rod 2612 of the first lifting device 261, then the 4th driving unit 254 turn
Axis can drive screw rod 2612 to rotate when rotating, the external screw thread on screw rod 2612 is matched with the internal screw thread of mandril 2611, so that spiral shell
The depth that bar 2612 screws in mandril 2611 increases, to reduce the distance between mandril 2611 and the 4th driving unit 254；Into
One step, when the shaft of the 5th driving unit 255 and the 6th driving unit 256 also rotates forward simultaneously, controlroof can be distinguished
22 and the 5th the distance between driving unit 255 and the 6th driving unit 256, to control projection arrangement in the flat of Z-direction
Move freedom degree；Vice versa, does not apply for that embodiment two does not repeat them here this.
Illustratively, referring to above-mentioned 4th driving unit 254, the 5th driving unit 255 and the 6th driving unit in attached drawing
The 256 position distribution relationship in pedestal, when the shaft of the 4th driving unit 254, the 5th driving unit 255 rotates forward, the 6th is driven
When the shaft reversion of moving cell 256, alternatively, when the 4th driving unit 254, the shaft reversion of the 5th driving unit 255, the 6th drive
When the shaft of moving cell 256 rotates forward, the height of the top plate 22 of pedestal side and supporting surface (such as desktop) in the X direction may make
Degree increases, and the height of the other side reduces, to control the adjustment of the rotary freedom of projection arrangement in the Y direction.
Illustratively, referring to above-mentioned 4th driving unit 254, the 5th driving unit 255 and the 6th driving unit in attached drawing
The 256 position distribution relationship in pedestal, when the shaft of the 5th driving unit 255 rotates forward, the shaft of the 6th driving unit 256 is anti-
Turn, alternatively, may make pedestal when the shaft of the 5th driving unit 255 inverts, the shaft of the 6th driving unit 256 rotates forward
The height between side and supporting surface increases top plate 22 in the Y direction, and the height of the other side reduces, to control projection arrangement
In the adjustment of the rotary freedom of X-direction.
Illustratively, the first driving unit 251, the second driving unit 252 shaft be respectively used to the first idler wheel 241 of control with
Second idler wheel 242 rotation, when the shaft of the first driving unit 251 and the second driving unit 252 controls the first idler wheel 241 and second
When idler wheel rolls in the same direction, pedestal can be driven to move integrally, to control the translation freedoms of projection arrangement in the Y direction；
It is rolled in opposite direction when the shaft of the first driving unit 251 and the second driving unit 252 controls the first idler wheel 241 with the second idler wheel
When dynamic, projection arrangement can control in the rotary freedom of Z-direction.
Illustratively, the shaft of third driving unit 253 is matched in rotation by lead screw 2322 and feed screw nut 2321
It closes, the second sliding rail 232 being fixedly connected with feed screw nut 2321 can be driven to move along the length direction of the first sliding rail 231, and the
Two sliding rails 232 are linked together with third sliding rail 233 by top plate 22, i.e., the second sliding rail 232 is along the length side of the first sliding rail 231
To third sliding rail 233 when movement, can be driven mobile also along the length direction of the first sliding rail 231, to control projection arrangement in X
The translation freedoms in direction.
In conclusion a kind of pedestal for projection arrangement that the embodiment of the present application two provides, projection arrangement are placed on top plate,
By laying the first sliding rail and second sliding rail and third sliding rail perpendicular with first sliding rail, the second sliding rail and third are sliding
Parallel and be movably coupled on the first sliding rail between rail, third driving unit can control the second sliding rail along the first sliding rail
Length direction it is mobile, and the second sliding rail is connected with third sliding rail by top plate, and realization controls projection arrangement along the first sliding rail
The mobile effect of length direction；Further, the first driving unit and the second driving unit control respectively stretches out in bottom plate
The rotation of idler wheel, be able to achieve control projection arrangement moved along the length direction of the second sliding rail and third sliding rail and along perpendicular to
Second sliding rail and the direction of plane where third sliding rail rotate, and take into account projected picture during the adjustment, and without mobile manually
Projection arrangement completes entire adjustment process by driving device, simple to operate quick.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution in the present invention, rather than its limitations；
Although present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its
It is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features
It is equivalently replaced；And these are modified or replaceed, various embodiments of the present invention skill that it does not separate the essence of the corresponding technical solution
The range of art scheme.
Claims (20)
1. a kind of pedestal of projection arrangement, the top plate including base body and above the base body, the top plate
For carrying the projection arrangement, the base body includes bottom plate, the vertical plate that the bottom plate edge is arranged in and the bottom
Plate and the vertical plate enclose the rectangular enclosure being set as, which is characterized in that further include:
At least three sliding rails in the rectangular enclosure, at least three sliding rails include the first sliding rail, the second sliding rail with
And third sliding rail, the direction of first side of first sliding rail along the bottom plate are laid, second sliding rail and the third
Sliding rail is parallel and is each perpendicular to lay with first sliding rail, and first sliding rail is fixed on the bottom plate, and described second
Sliding rail and the third sliding rail are movably coupled on first sliding rail, and the is movably connected on second sliding rail
One slide unit is movably connected with the second slide unit on the third sliding rail；
At least three driving units, at least three driving unit include the first driving unit, the second driving unit and the
Three driving units, first driving unit are fixed on the bottom plate, and first driving unit is for controlling described second
Sliding rail is slided along the length direction of first sliding rail, and second driving unit is corresponding with third driving unit to be fixed on institute
It states on the first slide unit and the second slide unit, second driving unit is for controlling first slide unit described
It is moved on second sliding rail, the third driving unit moves on the third sliding rail for controlling second slide unit；
The top plate is rotatably attached on second driving unit and the third driving unit.
2. the pedestal of projection arrangement according to claim 1, which is characterized in that further include: the 4th driving unit, the 5th drive
Moving cell and the 6th driving unit, the 4th driving unit, the 5th driving unit and the 6th driving unit are in three
Angular being distributed on the bottom plate and being fixedly connected with the bottom plate.
3. the pedestal of projection arrangement according to claim 2, which is characterized in that further include: it is fixed below the bottom plate
Three lifting devices, the 4th driving unit, the 5th driving unit are respectively used to control with the 6th driving unit
Make the height of three lifting devices.
4. the pedestal of projection arrangement according to claim 3, which is characterized in that first driving unit, described second
Driving unit, the third driving unit, the 4th driving unit, the 5th driving unit and the 6th driving are single
Member is motor.
5. the pedestal of projection arrangement according to claim 4, which is characterized in that the lifting device includes being equipped with internal screw thread
The mandril in hole, and be fixedly connected respectively with the shaft of the 4th driving unit, the 5th driving unit, the 6th driving unit
Screw rod, the screw rod adjust the bottom plate for screwing in the mandril respectively the distance between with the mandril.
6. the pedestal of projection arrangement according to claim 1, which is characterized in that offer first on second sliding rail
Shape slot, the side of first strip groove are provided with the first rack gear, are fixed with the first tooth in the shaft of second driving unit
Wheel, the first gear is matched with first rack gear, so that the shaft of second driving unit is in first bar shaped
First slide unit is driven to slide when moving in slot along second sliding rail.
7. the pedestal of projection arrangement according to claim 6, which is characterized in that offer Article 2 on the third sliding rail
Shape slot, the side of second strip groove are provided with the second rack gear, are fixed with the second tooth in the shaft of the third driving unit
Wheel, the second gear is matched with second rack gear, so that the shaft of the third driving unit is in second bar shaped
Second slide unit is driven to slide when moving in slot along the third sliding rail.
8. the pedestal of projection arrangement according to claim 7, which is characterized in that first slide unit and described second
Slide unit respectively includes slide, upwardly extends the bending of setting from the slide two sides, and is fixedly connected with the bending
Positive stop strip, the slide, the bending and the positive stop strip form sliding-rail groove, and the sliding-rail groove is for respectively with described second
Sliding rail, third sliding rail match.
9. the pedestal of projection arrangement according to claim 8, which is characterized in that it is provided with spring leaf in the sliding-rail groove,
The spring leaf is respectively used to adjust the tightness between the sliding-rail groove and second sliding rail or the third sliding rail.
10. the pedestal of projection arrangement according to claim 1, which is characterized in that opened up on the top plate first through hole with
Second through-hole, the first through hole and second through-hole are respectively used to accommodate second driving unit and the third drives
The shaft of unit.
11. the pedestal of projection arrangement according to claim 1, which is characterized in that first driving unit and described the
It is connect by cam with link mechanism between two sliding rails, the shaft of one end of the cam and first driving unit is fixed to be connected
It connects, the rotatable connection in one end of the other end of the cam and the connecting rod, the other end of the connecting rod and described second is slided
The rotatable connection of rail.
12. the pedestal of projection arrangement according to claim 2, which is characterized in that further include remote control unit, the remote control is single
Member is for receiving remote signal, and the remote signal is for controlling first driving unit, second driving unit, described
The operation of third driving unit, the 4th driving unit, the 5th driving unit and the 6th driving unit.
13. a kind of pedestal of projection arrangement, the top plate including base body and above the base body, the top plate
For carrying the projection arrangement, the base body includes bottom plate, the vertical plate that the bottom plate edge is arranged in and the bottom
Plate and the vertical plate enclose the rectangular enclosure being set as, which is characterized in that further include:
At least three sliding rails in the rectangular enclosure, at least three sliding rails include the first sliding rail, the second sliding rail with
And third sliding rail, the direction of first side of first sliding rail along the bottom plate are laid, second sliding rail and the third
Sliding rail is parallel and is each perpendicular to the first sliding rail laying, and first sliding rail is fixed on the bottom plate, and described second is sliding
Rail and the third sliding rail are movably coupled on first sliding rail；
At least three driving units, at least three driving unit include the first driving list being fixedly connected on the bottom plate
Member, the second driving unit and third driving unit, first driving unit, the second driving unit control the first idler wheel respectively
It is rotated with the second idler wheel, first idler wheel stretches out being equidistant for the bottom plate, the third driving with second idler wheel
Unit is moved for controlling second sliding rail along the length direction of first sliding rail；
Second sliding rail is connect with the third sliding rail by the top plate.
14. the pedestal of projection arrangement according to claim 13, which is characterized in that further include the 4th driving unit, the 5th
Driving unit and the 6th driving unit, the 4th driving unit are fixedly connected on second sliding rail, the 5th driving
Unit and the 6th driving unit are fixedly connected on the third sliding rail.
15. the pedestal of projection arrangement according to claim 14, which is characterized in that further include being fixedly connected on the top plate
At least three lifting devices of lower section, the 4th driving unit, the 5th driving unit and the 6th driving unit point
The height of three lifting devices Yong Yu not controlled.
16. the pedestal of projection arrangement according to claim 14, which is characterized in that first driving unit, described
Two driving units, the third driving unit, the 4th driving unit, the 5th driving unit and the 6th driving
Unit is motor.
17. the pedestal of projection arrangement according to claim 15, which is characterized in that the lifting device includes being equipped with interior spiral shell
The mandril of pit, the mandril are fixedly connected with the top plate, and single with the 4th driving unit, the 5th driving respectively
The screw rod that member, the shaft of the 6th driving unit are fixedly connected, the screw rod are used to screw in the internal thread hole of the mandril to adjust
The top plate respectively with the distance between the 4th driving unit, the 5th driving unit, the 6th driving unit.
18. the pedestal of projection arrangement according to claim 13, which is characterized in that the bottom of second sliding rail is fixed to be connected
It is connected to feed screw nut, the feed screw nut is matched with lead screw, the shaft of one end of the lead screw and the third driving unit
It is fixedly connected, the other end of the lead screw is fixedly connected with bearing, and the bearing is mounted on bearing block, the bearing block and institute
It states bottom plate to be fixedly connected, the shaft of the third driving unit controls the lead screw and is rotated such that second sliding rail described in
First sliding rail is moved.
19. the pedestal of projection arrangement according to claim 14, which is characterized in that it further include remote control unit, the remote control
Unit is for receiving remote signal, and the remote signal is for controlling first driving unit, second driving unit, institute
State the operation of third driving unit, the 4th driving unit, the 5th driving unit and the 6th driving unit.
20. a kind of projection device, including projection arrangement, which is characterized in that further include the throwing as described in claim 1 or 13 is any
The pedestal of image device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811038410.XA CN109143759B (en) | 2018-09-06 | 2018-09-06 | Base of projection device and projection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811038410.XA CN109143759B (en) | 2018-09-06 | 2018-09-06 | Base of projection device and projection equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109143759A true CN109143759A (en) | 2019-01-04 |
| CN109143759B CN109143759B (en) | 2021-03-12 |
Family
ID=64827449
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811038410.XA Active CN109143759B (en) | 2018-09-06 | 2018-09-06 | Base of projection device and projection equipment |
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| Country | Link |
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| CN (1) | CN109143759B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274129A (en) * | 2019-07-18 | 2019-09-24 | 四川长虹电器股份有限公司 | The electronic adjustment pedestal of projection display apparatus |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109143759B (en) | 2021-03-12 |
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