CN105093797B - Adjustable pedestal for projection display equipment, and projection display equipment - Google Patents

Adjustable pedestal for projection display equipment, and projection display equipment Download PDF

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Publication number
CN105093797B
CN105093797B CN201510455622.8A CN201510455622A CN105093797B CN 105093797 B CN105093797 B CN 105093797B CN 201510455622 A CN201510455622 A CN 201510455622A CN 105093797 B CN105093797 B CN 105093797B
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CN
China
Prior art keywords
tray
translational
translational tray
base
guide rail
Prior art date
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CN201510455622.8A
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Chinese (zh)
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CN105093797A (en
Inventor
鲁文生
王自上
李强
李兵
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海信集团有限公司
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Priority to CN201510455622.8A priority Critical patent/CN105093797B/en
Publication of CN105093797A publication Critical patent/CN105093797A/en
Application granted granted Critical
Publication of CN105093797B publication Critical patent/CN105093797B/en

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Abstract

The invention provides an adjustable pedestal for projection display equipment, and the projection display equipment. The adjustable pedestal comprises a pedestal, a first translation pallet, a first driving mechanism, a second translation pallet, a second driving mechanism, a rotating pallet, and carrying tables. When the adjustable pedestal is in use, a projection device of the projection display equipment is placed on a bearing surface formed by the carrying tables. The position of the projection device in a first direction can be adjusted through employing the first driving mechanism to drive the first translation pallet, and the position of the projection device in a second direction can be adjusted through employing the second driving mechanism to drive the second translation pallet. The rotating angle of the projection device in a plane whether the first and second directions are located can be adjusted through adjusting the rotating pallet. The pitch/deflection angle of the projection device can be adjusted through adjusting the three carrying tables, so as to enable the picture of the projection device to be aligned with a projection screen. When the pedestal is adjusted, there is no need to lift or move the projection device, so the adjustment process is simple and convenient and the adjustment precision is high.

Description

A kind of adjustable base of projection display apparatus and projection display apparatus
Technical field
The present invention relates to projection display apparatus design field, particularly to a kind of adjustable base of projection display apparatus and throwing Shadow display device.
Background technology
The projected picture of the projection arrangement in projection display apparatus when projecting on projection screen, need be accurately positioned after Just it is provided that good Consumer's Experience, especially ultrashort out-of-focus projection display device, how correctly quickly by projected picture and quilt Effective projected area of the screen of projection carries out aliging, whether the picture on projection screen is completely covered entirely effectively perspective plane Long-pending, it is the key point bringing good Consumer's Experience.
There is no physical connection, the height of projection arrangement and luffing angle between projection arrangement of the prior art and projection screen Generally it is adjusted by multiple callosities that projection arrangement bottom is arranged, callosity can be threaded connection structure and enter line height tune Section, the height adjusting whole callosities can achieve the whole height adjustment of projection arrangement, adjusts the difference in height after front & rear foot-pad is adjusted The pitching adjustment of achievable projection arrangement.It is in course of adjustment, because callosity is arranged on projection arrangement bottom, user typically requires Projection arrangement is lifted and carries out height of foot pad adjustment, adjustment process is loaded down with trivial details and Adjustment precision is low.Before and after projection arrangement and left and right The adjustment of position is generally realized by moving integrally projection arrangement, and adjustment process is equally loaded down with trivial details and Adjustment precision is low.
Content of the invention
The invention provides a kind of adjustable base of projection display apparatus and projection display apparatus, this adjustable base can be not Realize the adjustment of projection arrangement spatially multiple degree of freedom in the case of the projection arrangement of mobile projector display device, and adjust High precision, adjustment process is easy.
For achieving the above object, the following technical scheme of present invention offer:
A kind of adjustable base for projection display apparatus, comprising:
Base;
First translational tray, is slidably matched by the first slide mechanism between the first translational tray and base, so that first Translational tray can be installed on base with moving along the first direction;
Drive the first drive mechanism of the first translational tray movement;
Deviate from the second translational tray of base side, the second translational tray and the first translational tray positioned at the first translational tray Between be slidably matched by the second slide mechanism, so that the second translational tray can movably be installed on the first translation in a second direction Pallet, second direction is vertical with first direction;
Drive the second drive mechanism of the second translational tray movement;
Deviate from the rotary-tray of the first translational tray side positioned at the second translational tray, rotary-tray passes through the first pivotal axis It is installed on the second translational tray, the third direction that the first pivotal axis is located is perpendicular to first direction and perpendicular to second direction;
Deviate from three microscope carriers of the second translational tray side and distribution triangular in shape, each microscope carrier positioned at rotary-tray The side surface deviating from rotary-tray forms a loading end, and each microscope carrier can movably be installed on rotation support along third direction Disk.
In above-mentioned adjustable base, can drive second flat when the first translational tray translates in the first direction with respect to base Shifting pallet, rotary-tray, microscope carrier carry out translational motion in the first direction;Second translational tray is with respect to base or the first translation support Pallet, microscope carrier can be rotated when disk translates in a second direction and carry out translational motion in a second direction;Rotary-tray is around Connected microscope carrier can be driven when one pivotal axis is rotated to be rotated around the first pivotal axis;Three microscope carriers Height adjustment can be carried out along third direction respectively, to form the loading end of differing heights or pitching, deflection angle.
During this adjustable base uses, projection arrangement is installed on three microscope carriers, in the position adjustment of projection arrangement During, the first translational tray can be driven to adjust projection arrangement position in a first direction by adjusting the first drive mechanism Put, drive the second translational tray to adjust projection arrangement position in a second direction by adjusting the second drive mechanism, pass through Adjustment rotary-tray come to adjust projection arrangement in a first direction with the second direction institute anglec of rotation in the plane, by adjustment three Individual microscope carrier is in the whole height to adjust projection arrangement along the height on third direction or pitching, deflection angle;Thus can carry out Position adjustment on the six-freedom degree of space for the projection arrangement, the projected picture of projection arrangement is aligned with projection screen.Should Base be in course of adjustment need not direct mobile projector device, and its adjustment process is easy, and Adjustment precision is high.
Preferably, the first drive mechanism includes the first threaded screw rod and the first nut, the first threaded screw rod be installed in base, And extend in a first direction, the first nut is fixed on the first translational tray and is coordinated with the first threaded screw rod screw thread;And/or,
Second drive mechanism includes the second threaded screw rod and the second nut, and the second threaded screw rod is installed in the first translation support Disk and extending in a second direction, the second nut is fixed on the second translational tray and is coordinated with the second threaded screw rod screw thread.
Preferably, the first slide mechanism includes the first guide rail being slidably matched and the first slide block, and/or, the second skate machine Structure includes the second guide rail being slidably matched and the second slide block.
Preferably, when the first drive mechanism includes the first threaded screw rod and the first nut and the first slide mechanism includes sliding When the first guide rail of dynamic cooperation and the first slide block, in the first slide mechanism: the first guide rail is two, and two the first guide rails are arranged at Base;Article one, the first guide rail is located at the side of the first threaded screw rod, and another the first guide rail is located at the another of the first threaded screw rod Side;The quantity of the first slide block is four, and the first slide block is fixed on the first translational tray, each first guide rail respectively with two the One slide block cooperation;And/or,
When the second drive mechanism includes the second threaded screw rod and the second nut and the second slide mechanism includes being slidably matched When the second guide rail and the second slide block, in the second slide mechanism: the second guide rail is two, and two the second guide rails are arranged at base;One Bar second guide rail is located at the side of the second threaded screw rod, and another the second guide rail is located at the opposite side of the second threaded screw rod;Second The quantity of slide block is four, and the first slide block is fixed on the first translational tray, each second guide rail respectively with two the second slide blocks Cooperation.
Preferably, for limiting the first position-limit mechanism that the first translational tray is with respect to base translating stroke;
For limiting the second position-limit mechanism that the second translational tray is with respect to the first translational tray translating stroke.
Preferably, the first translational tray is provided with the first limitting casing and the second limitting casing, and base is provided with and is convex to the first translation support First spacing preiection of disk, the second translational tray is provided with the second spacing preiection being convex to the first translational tray, wherein:
First spacing preiection stretches into the first spacing inframe and cooperatively forms the first position-limit mechanism with the first limitting casing;
Second spacing preiection stretches into the second spacing inframe and cooperatively forms the second position-limit mechanism with the second limitting casing.
Preferably, each microscope carrier includes the inner thread device being connected with rotary-tray, and the outer spiral shell being connected with loading end Stricture of vagina device, external screw thread device and inner thread device are connected and axis is along third direction.
Preferably, each external screw thread device is provided with for locking inner thread device along the displacement on third direction Position locking mechanism.
Preferably, position locking mechanism includes, and is arranged on inner thread device and runs through the screw thread of inner thread device side Through hole, the axis of tapped through hole is perpendicular to the axis of thread of inner thread device;The second lock-screw coordinating with tapped through hole, the The termination of two lock-screws can be torqued-up to the thread contact position with external screw thread device.
Preferably, adjustable base includes the rotary locking mechanism for locking rotary-tray rotary motion position.
Preferably, rotary locking mechanism includes, the first gear coaxially connected with pivotal axis;Engage with first gear and revolve Turn the second gear that center is connected with the second translational tray, and the spoke of second gear is provided with the center of circle and second gear rotation The arcuate groove that the heart overlaps;The first lock-screw threadeded with the second translational tray, the first lock-screw is located in arcuate groove And screw head lower end can be torqued-up to the spoke contact position with second gear.
Present invention also offers a kind of projection display apparatus, including projection arrangement, also include above-mentioned adjustable base, projection Device is installed on the loading end of three microscope carriers of distribution triangular in shape of rotary-tray setting of adjustable base.
The projection arrangement of this projection display apparatus, during position adjustment, can drive the by adjusting the first drive mechanism One translational tray, to adjust projection arrangement position in a first direction, drives the second translation support by adjusting the second drive mechanism Disk adjusting projection arrangement position in a second direction, by adjust rotary-tray adjust projection arrangement in a first direction and Second direction the anglec of rotation in the plane, adjusting projection dress along the height on third direction by adjusting three microscope carriers The whole height put or pitching, deflection angle;Position adjustment on the six-freedom degree of space for the projection arrangement thus can be carried out, with The projected picture of projection arrangement is aligned with projection screen.The projection arrangement of this projection display apparatus is during position adjustment Need not direct mobile projector device, and its adjustment process is easy, and Adjustment precision is high.
Brief description
Fig. 1 is the part-structure assembling schematic diagram of the adjustable base in the specific embodiment of the invention;
Fig. 2 is the part-structure assembling schematic diagram of the adjustable base in the specific embodiment of the invention;
Fig. 3 is the part-structure assembling exploded perspective view of the adjustable base in the specific embodiment of the invention;
Fig. 4 is the part-structure assembling schematic diagram of the adjustable base in the specific embodiment of the invention;
Fig. 5 is the structural representation of the projection display apparatus in the specific embodiment of the invention.
Reference:
10, base;11, the first spacing preiection;20, the first translational tray;
21, the first limitting casing;22, the second limitting casing;30, the first slide mechanism;
31, the first guide rail;32, the first slide block;40, the first drive mechanism;
41, the first nut;42, the first threaded screw rod;43, first direction adjusting screw;
50, the second translational tray;51, the second spacing preiection;60, the second slide mechanism;
61, the second guide rail;62, the second slide block;70, the second drive mechanism;
71, the second nut;72, the second threaded screw rod;73, second direction adjusting screw;
80, rotary-tray;90, the first pivotal axis;100, microscope carrier;
101, external screw thread device;102, inner thread device;103, position locking mechanism;
110, rotary locking mechanism;111, first gear;112, second gear;
113, the first lock-screw;120, friction mechanism;1, adjustable base;2, projection arrangement.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on this Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of not making creative work Apply example, broadly fall into the scope of protection of the invention.
Embodiments provide a kind of adjustable base of projection display apparatus and projection display apparatus, above-mentioned projection shows Show that equipment includes projection arrangement and luffing angle and the ginseng such as beat, vertical height, anglec of rotation for adjusting projection arrangement The adjustable base of number, this projection display apparatus passes through need not to lift during position adjustment using above-mentioned adjustable base or directly The projection arrangement of mobile projector display device, and its adjustment process is easy, Adjustment precision is high.
Following by combining accompanying drawing, the structure of above-mentioned adjustable base and use principle are described, for ease of description, this Inventive embodiments when the operation principle to above-mentioned adjustable base is described, in conjunction with the projection arrangement in projection display apparatus, And the feature such as the annexation between projection arrangement and adjustable base illustrates.
As shown in Figure 1, Figure 2 and Figure 3, the adjustable bottom for projection display apparatus providing in the specific embodiment of the invention Seat specifically includes:
Base 10;First translational tray 20, passes through the first slide mechanism 30 sliding between the first translational tray 20 and base 10 Dynamic cooperation;Drive the first drive mechanism 40 of the first translational tray 20 movement, the first translational tray 20 can be in the first drive mechanism Under 40 driving, by the y translation in the first direction of the first slide mechanism 30 respect thereto 10;
Deviate from the second translational tray 50 of base 10 side, the second translational tray 50 and first positioned at the first translational tray 20 It is slidably matched by the second slide mechanism 60 between translational tray 20;Drive the second drive mechanism of the second translational tray movement 70, the second translational tray 50 can be under the driving of the second drive mechanism 70, by the second slide mechanism 60 relatively first translation support Disk 20 is with base 10 along the second direction x translation vertical with first direction y;
Deviate from the rotary-tray 80 of the first translational tray 20 side positioned at the second translational tray 50, rotary-tray 80 passes through to set The first pivotal axis 90 being placed on the second translational tray 50 is installed on the second translational tray 50, the first pivotal axis 90 be located the 3rd Direction z is perpendicular to first direction y and second direction x;
Deviate from three microscope carriers 100 of the second translational tray 50 side and distribution triangular in shape positioned at rotary-tray 80, for just In the adjustment of projection arrangement, as shown in figure 3, three microscope carriers in this specific embodiment are in isoceles triangle on rotary-tray 80 Shape be distributed, and this isosceles triangle go to the bottom parallel with second direction x;Each microscope carrier 100 deviates from the side of rotary-tray 80 Surface forms a loading end, and for placing the projection arrangement of projection display apparatus, and each microscope carrier can move along third direction z Be installed on rotary-tray 80.
In above-mentioned adjustable base, the first translational tray 20 translation when can drive connected second translational tray 50, Y carries out translational motion to 80, three microscope carriers 100 of rotary-tray in the first direction;Second translational tray 50 translation when can drive with X carries out translational motion to 80, three microscope carriers 100 of rotary-tray that it connects in a second direction;Rotary-tray 80 is around the first pivot Connected three microscope carriers 100 can be driven to be rotated around the first pivotal axis 90 during axle 90 rotation;In isosceles triangle Three microscope carriers 100 of arrangement can carry out height adjustment along third direction z, respectively to form differing heights or pitching/deflection angle Loading end: simultaneously adjust three microscope carriers 100 height, the whole height of adjustable loading end;Adjustment is located at isosceles triangle One microscope carrier 100 on summit and the difference in height between two microscope carriers 100 that isosceles triangle is gone to the bottom, adjustable loading end Luffing angle;Only difference in height between two microscope carriers 100 that isosceles triangle is gone to the bottom for the adjustment, the beat of adjustable loading end Angle.
During this adjustable base uses, projection arrangement is installed on the loading end that three microscope carriers 100 are formed, and can pass through Adjust the first drive mechanism 40 and drive the first translational tray 20, the position on projection arrangement in a first direction y is adjusted;Logical Cross adjustment the second drive mechanism 70 and drive the second translational tray 50, position in second direction x for the projection arrangement is adjusted; By rotating rotary-tray 80, to projection arrangement in a first direction y and second direction x the anglec of rotation in the plane adjust Whole;By adjusting three microscope carriers 100 along the height on third direction z, the pitching/deflection angle of projection arrangement is adjusted; Position adjustment on the six-freedom degree of space for the projection arrangement can be carried out using this adjustable base, by multiple degree of freedom Position adjustment to be directed at the projected picture of projection arrangement with projection screen.This adjustable base be in course of adjustment need not lift or The projection arrangement of mobile projector display device, and its adjustment process is easy, Adjustment precision is high.
As shown in figure 1, in a kind of optimal way, for improving adjustable base Adjustment precision in a first direction, the first drive Motivation structure 40 includes:
One end is installed in first threaded screw rod 42 of base 10 and y in the first direction;Be fixed on the first translational tray 20 and With the first nut 41 of the first threaded screw rod 42 screw thread cooperation, the first nut 41 can be integral type knot with the first translational tray 20 Structure or split-type structural;For ease of the adjustment of the first threaded screw rod 42, in a kind of optimal way, the first drive mechanism 40 also includes Positioned at the first threaded screw rod 42 pivot dress, with base 10 one end and the first direction coaxially connected with the first threaded screw rod 42 adjusts spiral shell Nail 43, when carrying out the position adjustment of the first translational tray 20, can adopt the instruments such as screwdriver to rotate first direction adjusting screw 43, drive the first threaded screw rod 42 to rotate, thus driving the first translational tray 20 y in the first direction being connected with the first nut 41 Translation.
In actual production process, according to Production requirement, the first drive mechanism also can adopt gear & rack structure etc. to drive Mode.
As shown in figure 1, in a kind of optimal way, for improving adjustable base Adjustment precision in a second direction, the second drive Motivation structure 70 includes:
One end is installed in second threaded screw rod 72 of base 10 and y in a second direction;Be fixed on the second translational tray 20 and With the second nut 71 of the second threaded screw rod 72 screw thread cooperation, the second nut 71 can be integral type structure with the second translational tray 50 Or split-type structural;For ease of the adjustment of the second threaded screw rod 72, in a kind of optimal way, the second drive mechanism 70 also includes position Fill with base 10 one end and the second direction adjusting screw coaxially connected with the second threaded screw rod 72 in the second threaded screw rod 72 pivot 73, when carrying out the position adjustment of the second translational tray 20, the instruments such as screwdriver can be adopted to rotate second direction adjusting screw 73, The second threaded screw rod 72 is driven to rotate, y puts down in a second direction thus driving the second translational tray 50 being connected with the second nut 71 Move.
In actual production process, according to Production requirement, the second drive mechanism also can adopt gear & rack structure etc. to drive Mode.
As shown in figure 1, in a kind of optimal way, the first slide mechanism 30 includes the first guide rail 31 and first being slidably matched Slide block 32;Second slide mechanism 60 includes the second guide rail 61 being slidably matched and the second slide block 62.
For increasing stability in translational motion for first translational tray, as shown in Figure 1 in a kind of optimal way, when first Drive mechanism 40 includes the first threaded screw rod 42 and the first nut 41 and the first slide mechanism 30 includes being slidably matched first leads When rail 31 and the first slide block 32, in the first slide mechanism 30, the first guide rail 31 is two, and two the first guide rails 31 are arranged at bottom On seat 10;Article one, the first guide rail 31 is located at the side of the first threaded screw rod 42, and another the first guide rail 31 is located at the first screw thread silk The opposite side of thick stick 42;
The quantity of the first slide block 32 is four, and the first slide block 32 is fixed on the first translational tray 20, each first guide rail 31 are coordinated with two the first slide blocks 32 respectively.
Correspondingly, the first guide rail 31 may also set up on the first translational tray 20, and the first slide block relative set is in base 10 On.
For increasing stability in translational motion for second translational tray, as shown in Figure 1 in a kind of optimal way, when second Drive mechanism 70 includes the second threaded screw rod 72 and the second nut 71 and the second slide mechanism 60 includes being slidably matched second leads When rail 61 and the second slide block 62, in the second slide mechanism 60, the second guide rail 61 is two, and two the second guide rails 61 are arranged at first On translational tray 20;Article one, the second guide rail 61 is located at the side of the second threaded screw rod 72, and another the second guide rail 61 is located at second The opposite side of threaded screw rod 72;
The quantity of the second slide block 62 is four, and the second slide block 62 is fixed on the second translational tray 50, each second guide rail 61 are coordinated with two the second slide blocks 62 respectively.
Correspondingly, the second guide rail 61 may also set up on the second translational tray 50, and the second slide block relative set is flat in first Move on pallet 20.
In a kind of optimal way, for preventing the first translational tray or the second translational tray because of adjustment during position adjustment Stroke is excessive and depart from first driving means or the second driving means or abjection adjustable base, this adjustable base also includes:
For limiting the first position-limit mechanism that the first translational tray 20 is with respect to base 10 translating stroke;
For limiting the second position-limit mechanism that the second translational tray 50 is with respect to the first translational tray 20 translating stroke.
In a kind of optimal way as depicted in figs. 1 and 2, the first translational tray 20 is provided with the first limitting casing 21 and second Limitting casing 22, in this optimal way, the first limitting casing 21 and the second limitting casing 22 are rectangle frame, may also be employed in actual production The limitting casing of other shapes, the shape such as such as circular, trapezoidal;Base is provided with the first spacing preiection 11 being convex to the first translational tray, Preferably, the first spacing preiection 11 is the limited post of setting on base 10, and limited post stretches in the first limitting casing 21, with First limitting casing 21 cooperatively forms the first position-limit mechanism, the first limitting casing 21 the distance between two sides of y in the first direction It is not more than the useful thread of the first threaded screw rod 42, when the first translational tray 20 is in the translation motion of y in the first direction, First limitting casing 21 in the first direction any one of two sides of y mobile to when contacting with limited post, the first translational tray 20 can not continue to move to, it is to avoid the first translational tray 20 departs from the first threaded screw rod 42 in translation, and then avoids first Translational tray 20 is departed from adjustable base;Second translational tray is provided with the second spacing preiection 51 being convex to the first translational tray, excellent Selection of land, the second spacing preiection 51 is the flanging being arranged on the second translational tray, and flanging stretches in the second limitting casing 22, with second Limitting casing 22 cooperatively forms the second position-limit mechanism, and the distance between two sides of x are little in a second direction for the second limitting casing 22 In the useful thread of the second threaded screw rod 72, when the second translational tray 50 is in the translation motion of x in a second direction, second Any one of two sides of x are moved to when being contacted with flanging limitting casing 22 in a second direction, and the second translational tray 50 can not Continue to move to, it is to avoid the second translational tray 50 departs from the second threaded screw rod 72 in translation, and then avoids the second translation support Disk 50 is departed from adjustable base, improves the stability in use of adjustable base.
In a kind of optimal way as shown in Figure 3, each microscope carrier 100 includes the external screw thread dress being connected with rotary-tray 80 Put 101, and the inner thread device 102 being connected with microscope carrier 100, external screw thread device 101 and inner thread device 102 screw thread are connected And axis is along third direction z.
For avoiding microscope carrier because being produced displacement by during the ectocines such as External force interference after adjusting to desired location, as Fig. 3 institute In a kind of optimal way showing, each inner thread device 102 is provided with for locking external screw thread device 101 along third direction The position locking mechanism 103 of the displacement on z.
In a kind of optimal way, position locking mechanism 103 includes, and is arranged on inner thread device 102 and runs through female thread The tapped through hole of device 102 side, the axis of tapped through hole is perpendicular to the axis of thread of inner thread device 102;With tapped through hole Second lock-screw of cooperation, the termination of the second lock-screw can be torqued-up to the thread contact position with external screw thread device 101, When microscope carrier 100 is adjusted to desired location by rotating external threads device 101, the second lock-screw can be screwed to external screw thread device 101 can not rotate, thus locking position on third direction z for the microscope carrier 100, it is to avoid microscope carrier 100 is adjusting to desired location The displacement occurring because of External force interference afterwards, and then avoid the position generation change of projection display equipment, improve adjustable base Stability in use.
In a kind of optimal way as shown in Figure 4, in order to avoid adjustable base is in the position adjustment of projection arrangement Produce displacement with respect to the holding plane of adjustable base, and then reduce Adjustment precision, deviate from the first translational tray 20 in base 10 Side be provided with the friction mechanism 120 for increasing the frictional force between adjustable base and the holding plane of adjustable base.
In optimal way as shown in Figure 4, the callosity that friction mechanism 120 is made for silica gel material, this is in actual production In also can be selected for the higher material of other coefficient of frictions, or adopt sucker structure, so that adjustable base is adsorbed in its holding plane On, increase stability during its adjustment further.
For avoiding rotary-tray displacement of producing because the external conditions such as External force interference affect after adjusting to desired location, As shown in Figure 3 in a kind of optimal way, adjustable base includes the spin locking for locking rotary-tray 80 rotary motion position Mechanism 110.
Specifically, as shown in figure 3, rotary locking mechanism 110 includes, the first gear coaxially connected with the first pivotal axis 90 111, for simplifying product structure, the first gear 111 in this optimal way is incomplete mechanism gear mechanism, in actual production process Complete gear structure can be adopted according to the condition of production;Engage with first gear 111 and center of rotation and the second translational tray 50 phase Second gear 112 even, the spoke of second gear 112 is provided with the arcuate groove that the center of circle is overlapped with second gear 112 center of rotation; The first lock-screw 113 threadeded with the second translational tray 50, the first lock-screw 113 is located in arcuate groove and head of screw Subordinate end can be torqued-up to the spoke contact position with second gear 112, after adjustment rotary-tray 80 is to desired location, can be by the One lock-screw 113 is torqued-up to second gear 112 and can not rotate, so that the position locking of rotary-tray 80, it is to avoid rotation The swing offset that pallet 80 produces under the influence of by external conditions such as External force interferences, and then avoid the position generation of projector equipment Change, improves the stability in use of adjustable base.
As shown in figure 5, the projection display apparatus providing in the specific embodiment of the invention specifically include:
Projection arrangement 2, adjustable base 1, projection arrangement 2 be installed on setting on the rotary-tray 80 of adjustable base 1 in three On the loading end of three microscope carriers 100 of angular distribution.
In the position adjustment of the projection arrangement 2 of this projection display apparatus, can be by adjusting the first drive mechanism 40 Drive the first translational tray 20, the position on projection arrangement 2 in a first direction y is adjusted;By adjusting the second driving machine Structure 70 drives the second translational tray 50, and position in second direction x for the projection arrangement 2 is adjusted;By rotating rotation support Disk 80, to projection arrangement 2 in a first direction y and second direction x the anglec of rotation in the plane be adjusted;By adjusting three Individual microscope carrier 100, along the height on third direction z, is adjusted to the pitching/deflection angle of projection arrangement 2;Using this adjustable bottom Seat 1 can carry out position adjustment on the six-freedom degree of space for the projection arrangement 2, by the position adjustment on multiple degree of freedom with The projected picture of projection arrangement 2 is aligned with projection screen.This adjustable base is in course of adjustment and need not lift or mobile projector The projection arrangement 2 of display device, and its adjustment process is easy, Adjustment precision is high.
Obviously, those skilled in the art can carry out various changes and modification without deviating from this to the embodiment of the present invention Bright spirit and scope.So, if these modifications of the present invention and modification belong to the claims in the present invention and its equivalent technologies Within the scope of, then the present invention is also intended to comprise these changes and modification.

Claims (12)

1. a kind of adjustable base for projection display apparatus is it is characterised in that include:
Base;
First translational tray, is slidably matched by the first slide mechanism between described first translational tray and described base, so that Described first translational tray can be installed on described base with moving along the first direction;
Drive the first drive mechanism of described first translational tray movement;
Deviate from the second translational tray of described base side positioned at described first translational tray, described second translational tray with described It is slidably matched by the second slide mechanism between first translational tray, so that described second translational tray can move in a second direction Be installed on described first translational tray, described second direction is vertical with described first direction;
Drive the second drive mechanism of described second translational tray movement;
Deviate from the rotary-tray of described first translational tray side positioned at described second translational tray, described rotary-tray passes through the One pivotal axis is installed on described second translational tray, and the third direction that described first pivotal axis is located is perpendicular to described first party To and perpendicular to described second direction;
Deviate from three microscope carriers of described second translational tray side and distribution triangular in shape positioned at described rotary-tray, each The side surface that microscope carrier deviates from described rotary-tray forms a loading end, and each described microscope carrier can move along described third direction It is installed on described rotary-tray dynamicly.
2. adjustable base according to claim 1 it is characterised in that:
Described first drive mechanism includes the first threaded screw rod and the first nut, and described first threaded screw rod is installed in described bottom Seat and along described first direction extend, described first nut be fixed on described first translational tray and with described first screw thread silk Thick stick screw thread coordinates;And/or,
Described second drive mechanism includes the second threaded screw rod and the second nut, and described second threaded screw rod is installed in described first Translational tray and extending along described second direction, described second nut is fixed on described second translational tray and with described second Threaded screw rod screw thread coordinates.
3. adjustable base according to claim 2 is it is characterised in that described first slide mechanism includes being slidably matched One guide rail and the first slide block, and/or, described second slide mechanism includes the second guide rail being slidably matched and the second slide block.
4. adjustable base according to claim 3 it is characterised in that:
When described first drive mechanism includes described first threaded screw rod and described first nut and described first slide mechanism bag When including described first guide rail being slidably matched and described first slide block, in described first slide mechanism: described first guide rail is two Bar, two described first guide rails are arranged at described base;Article one, described first guide rail is located at the side of described first threaded screw rod, Another described first guide rail is located at the opposite side of described first threaded screw rod;The quantity of described first slide block is four, and institute State the first slide block and be fixed on described first translational tray, the first slide block cooperation described with two respectively of each described first guide rail; And/or,
When described second drive mechanism includes described second threaded screw rod and described second nut and described second slide mechanism bag When including described second guide rail being slidably matched and described second slide block, in described second slide mechanism: described second guide rail is two Bar, two described second guide rails are arranged at described base;Article one, described second guide rail is located at the side of described second threaded screw rod, Another described second guide rail is located at the opposite side of described second threaded screw rod;The quantity of described second slide block is four, and institute State the first slide block and be fixed on described first translational tray, the second slide block cooperation described with two respectively of each described second guide rail.
5. adjustable base according to claim 1 is it is characterised in that also include:
For limiting the first position-limit mechanism that described first translational tray is with respect to described base translating stroke;
For limiting the second position-limit mechanism that described second translational tray is with respect to described first translational tray translating stroke.
6. adjustable base according to claim 5 it is characterised in that described first translational tray be provided with the first limitting casing and Second limitting casing, described base is provided with the first spacing preiection being convex to described first translational tray, and described second translational tray sets There is the second spacing preiection being convex to described first translational tray, wherein:
Described first spacing preiection stretches into the described first spacing inframe and cooperatively forms described first limit with described first limitting casing Position mechanism;
Described second spacing preiection stretches into the described second spacing inframe and cooperatively forms described second limit with described second limitting casing Position mechanism.
7. adjustable base according to claim 1 is it is characterised in that each described microscope carrier includes and described rotary-tray The inner thread device connecting, and the external screw thread device being connected with described loading end, described external screw thread device and described female thread dress Put and be connected and axis is along described third direction.
8. adjustable base according to claim 7 is it is characterised in that each described external screw thread device is provided with for locking Fixed described inner thread device is in the position locking mechanism along the displacement on described third direction.
9. adjustable base according to claim 8, it is characterised in that described position locking mechanism includes, is arranged at described On inner thread device and run through the tapped through hole of described inner thread device side, the axis of described tapped through hole is perpendicular to described interior The axis of thread of screw device;With the second lock-screw of described tapped through hole cooperation, the termination of described second lock-screw can It is torqued-up to the thread contact position with described external screw thread device.
10. the adjustable base according to any one of claim 1-9 is it is characterised in that described adjustable base is included for locking The rotary locking mechanism of fixed described rotary-tray rotary motion position.
11. adjustable bases according to claim 10 it is characterised in that described rotary locking mechanism includes, with described pivot The coaxially connected first gear of rotating shaft;Engage with described first gear and center of rotation is connected with described second translational tray Two gears, and the spoke of described second gear is provided with the arcuate groove that the center of circle is overlapped with described second gear center of rotation;With The first threaded lock-screw of two translational tray, described first lock-screw is located in described arcuate groove and under screw head End can be torqued-up to the spoke contact position with described second gear.
A kind of 12. projection display apparatus, including projection arrangement it is characterised in that also including as any one of claim 1-11 institute The adjustable base stated, described projection arrangement is installed on three of the distribution triangular in shape of rotary-tray setting of described adjustable base On the loading end of microscope carrier.
CN201510455622.8A 2015-07-29 2015-07-29 Adjustable pedestal for projection display equipment, and projection display equipment CN105093797B (en)

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CN105938290B (en) * 2016-06-23 2017-11-24 新乡医学院 A kind of controllable projector system
CN105976646B (en) * 2016-07-29 2018-09-25 浙江中腾科教设备有限公司 A kind of intelligent display device for electronic commerce teaching
CN108957915A (en) * 2017-05-17 2018-12-07 深圳市光峰光电技术有限公司 A kind of adjusting bracket and projector
CN109143759B (en) * 2018-09-06 2021-03-12 海信集团有限公司 Base of projection device and projection equipment
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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US6485144B1 (en) * 2000-08-30 2002-11-26 Jung-Huang Liao Projector hanger frame
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