阅读说明：本技术 一种剧场用舞台投影支撑结构 (Stage projection bearing structure for theatre ) 是由 程明 于 2020-12-02 设计创作，主要内容包括：本发明公开了一种剧场用舞台投影支撑结构,包括第一支撑柱和第二支撑柱,所述第一支撑柱一侧外壁开有安装槽,且安装槽内壁滑动连接有第一滑块,所述第二支撑柱另一侧外壁开有固定槽,且固定槽内壁滑动连接有第二滑块,所述固定槽内壁固定有金属杆,所述第二滑块开有圆槽口,且圆槽口内壁滑动连接有金属杆。本发明通过使用第一支撑柱、第二支撑柱、第一滑块、第二滑块、金属杆、第一伺服电机和螺纹杆,能够自动调节投影仪的高度,并在进行高度调节时能够利用锥形块对其高度进行定位,避免发生下滑现象,提高装置的安全性,通过使用金属管和连接杆,能够调节装置的长度,使其能够适用于不同的舞台,提高装置的实用性。(The invention discloses a stage projection supporting structure for a theater, which comprises a first supporting column and a second supporting column, wherein an installation groove is formed in the outer wall of one side of the first supporting column, a first sliding block is connected to the inner wall of the installation groove in a sliding mode, a fixing groove is formed in the outer wall of the other side of the second supporting column, a second sliding block is connected to the inner wall of the fixing groove in a sliding mode, a metal rod is fixed to the inner wall of the fixing groove, a round groove opening is formed in the second sliding block, and the metal rod is connected to the inner wall of the round groove. According to the invention, through the use of the first support column, the second support column, the first slide block, the second slide block, the metal rod, the first servo motor and the threaded rod, the height of the projector can be automatically adjusted, and the height of the projector can be positioned by utilizing the conical block during height adjustment, so that the phenomenon of gliding is avoided, the safety of the device is improved, and through the use of the metal tube and the connecting rod, the length of the device can be adjusted, so that the device can be suitable for different stages, and the practicability of the device is improved.)

1. A stage projection supporting structure for a theater comprises a first supporting column (1) and a second supporting column (2), and is characterized in that an outer wall of one side of the first supporting column (1) is provided with a mounting groove, an inner wall of the mounting groove is connected with a first sliding block (3) in a sliding manner, an outer wall of the other side of the second supporting column (2) is provided with a fixing groove, an inner wall of the fixing groove is connected with a second sliding block (4) in a sliding manner, a metal rod (5) is fixed on the inner wall of the fixing groove, a round groove opening is formed in the second sliding block (4), a metal rod (5) is connected to the inner wall of the round groove opening in a sliding manner, a rectangular groove is formed in the inner wall of one side of the round groove opening in the second sliding block (4), a tapered block (28) is connected to the inner wall of the rectangular groove in a sliding manner, a plurality of clamping grooves which are, the screw hole is opened in the first slider (3), the threaded hole is screwed on the inner wall of the threaded hole, the threaded rod (7) is screwed on the inner wall of the threaded hole, the first servo motor (6) is fixed at the top of the first supporting column (1), the output shaft of the first servo motor (6) is fixed at the top of the threaded rod (7) through the shaft coupling, the metal tube (8) is fixed at one end of the first slider (3), the connecting rod (9) is connected on the inner wall of the metal tube (8) in a sliding manner, the translation mechanism (10) is connected on the outer wall of the metal tube (8) in a sliding manner, the fixed frame (11) is fixed at the bottom of the translation mechanism (10), the rotary table (12) is connected on the inner wall of the bottom of the fixed frame (11) in a sliding manner, the first connecting rod (14) is fixed at the bottom of the rotary table (12), the second servo motor, the bottom end of the first connecting rod (14) is provided with a spherical groove, the inner wall of the spherical groove is rotatably connected with a metal ball (15), the bottom end of the metal ball (15) is fixedly provided with a second connecting rod (16), the bottom end of the second connecting rod (16) is fixedly provided with a projector (17) through a flange, the translation mechanism (10) comprises a first semicircular plate (18), a second semicircular plate (19), a fixed block (20), a rubber ball (21), a U-shaped frame (22), a third servo motor (23), a first driving bevel gear (24), a first driven bevel gear (25) and a roller (26), the inner walls of the first semicircular plate (18) and the second semicircular plate (19) are respectively provided with a limit groove which is uniformly distributed, the inner wall of the limit groove is in sliding fit with the fixed block (20), the top of the fixed block (20) is provided with an arc-shaped groove, and the inner wall of the arc-shaped groove is in rolling fit with the rubber, first semicircle board (18) top is opened there is the installing port, and gyro wheel (26) rotate through the bearing and connect in installing port both sides inner wall, "U" shape frame (22) bottom mounting is at first semicircle board (18) top that is located the installing port both sides, the output shaft of third servo motor (23) passes through the shaft coupling to be fixed at first initiative bevel gear (24) top, and first initiative bevel gear (24) and first driven bevel gear (25) meshing, tubular metal resonator (8) and connecting rod (9) top are opened has the guide rail groove, and guide rail groove bottom inner wall forms normal running fit with gyro wheel (26), tubular metal resonator (8) and connecting rod (9) are opened all around has a plurality of evenly distributed's constant head tank, and constant head tank inner wall and rubber ball (21) form the joint cooperation.

2. A stage projection support structure for theaters, according to claim 1, wherein the bottom end of the threaded rod (7) is fixed with a second driven bevel gear (29), the second driven bevel gear (29) is engaged with a second driving bevel gear (30), the inner wall of the second driving bevel gear (30) is fixed with a crank (31), the first support column (1) is provided with a mounting slot at the lower side of the mounting slot, and the second driven bevel gear (29) and the second driving bevel gear (30) are both in rotating fit with the inner wall of the mounting slot.

3. A stage projection supporting structure for theaters, according to claim 2, wherein two ends of the metal rod (5) are fixed on the inner wall of the fixing groove, and two ends of the threaded rod (7) are rotatably connected to the inner wall of the fixing groove through bearings.

4. A stage projection supporting structure for theatre as claimed in claim 1 wherein the first semi-circular plate (18) and the second semi-circular plate (19) are both provided with screw holes at both sides thereof, and the first semi-circular plate (18) and the second semi-circular plate (19) are fastened and fitted by bolts.

5. A stage projection supporting structure for theaters, according to claim 1, wherein the third servo motor (23) is fixed on the top of the U-shaped frame (22), the bottom of the fixing block (20) is provided with a first spring, and the bottom end of the first spring is fixed on the inner wall of the limiting groove.

6. A stage projection support structure for theaters, as claimed in claim 1, wherein the bottom plates (27) are fixed to the bottoms of the first support column (1) and the second support column (2), and universal wheels are fixed to four corners of the bottom of each bottom plate (27).

7. A stage projection support structure for theaters, as recited in claim 1, wherein one end of the conical block (28) is fixed with the second spring, and one end of the second spring is fixed on the inner wall of the rectangular groove.

8. A stage projection supporting structure for theaters, as claimed in claim 1, wherein one end of the metal tube (8) is fixed on the outer wall of the other side of the second sliding block (4), sliding grooves are formed on both sides of the first connecting rod (14), and the inner diameter of the sliding grooves is matched with the diameter of the second connecting rod (16).

Technical Field

The invention relates to the technical field of stage projection supporting structures for theaters, in particular to a stage projection supporting structure for theaters.

Background

The projector is also called a projector, and is a device which projects or reflects images or videos onto a screen through a digital light processing technology or an LCD liquid crystal imaging technology, corresponding images and video signals can be accessed through different signal sources, such as computers, mobile phones, DVs and DVs, so that playing is realized, the projector is often used for projection in theaters, and the arrangement mode of the projector is mainly supported, placed or fixed by a suspension bracket. And the projection bearing structure who uses at present is fixed more and places, can't adjust the height of projecting apparatus, and can't adjust the length of support for the projecting apparatus installation is taken trouble with the dismantlement, makes the device not practical enough.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a stage projection support structure for a theater.

In order to achieve the purpose, the invention adopts the following technical scheme:

a stage projection supporting structure for theaters comprises a first supporting column and a second supporting column, wherein an installation groove is formed in the outer wall of one side of the first supporting column, a first sliding block is connected to the inner wall of the installation groove in a sliding mode, a fixing groove is formed in the outer wall of the other side of the second supporting column, a second sliding block is connected to the inner wall of the fixing groove in a sliding mode, a metal rod is fixed to the inner wall of the fixing groove, a round groove opening is formed in the second sliding block, the metal rod is connected to the inner wall of the round groove opening in a sliding mode, a rectangular groove is formed in the inner wall of the second sliding block located on one side of the round groove opening, a conical block is connected to the inner wall of the rectangular groove in a sliding mode, a plurality of clamping grooves which are evenly distributed are formed in the outer wall of the other side of the metal rod, the inner walls of the clamping grooves are matched with the conical block in a clamping mode, the first sliding block is characterized in that a metal pipe is fixed at one end of the first sliding block, a connecting rod is connected to the inner wall of the metal pipe in a sliding manner, a translation mechanism is connected to the outer wall of the metal pipe in a sliding manner, a fixed frame is fixed to the bottom of the translation mechanism, a rotary disc is connected to the inner wall of the bottom of the fixed frame in a sliding manner, a first connecting rod is fixed to the bottom of the rotary disc, a second servo motor is fixed to the inner wall of the top of the fixed frame, an output shaft of the second servo motor is fixed to the top of the rotary disc through a shaft coupling, a spherical groove is formed in the bottom end of the first connecting rod, a metal ball is connected to the inner wall of the spherical groove in a rotating manner, a second connecting rod is fixed to the bottom of the second connecting rod through a flange, the translation mechanism comprises a first semicircular plate, a second semicircular plate, a fixed block, a rubber ball, a U-shaped frame, a third servo motor, and spacing groove inner wall forms sliding fit with the fixed block, open at the fixed block top has the arc wall, and the arc wall inner wall forms the rolling fit with the rubber ball, open at first semicircle board top has the installing port, and the gyro wheel passes through the bearing and rotates to be connected at installing port both sides inner wall, the first semicircle board top that is located the installing port both sides is put up bottom mounting to "U" shape, third servo motor's output shaft passes through the shaft coupling to be fixed at first initiative bevel gear top, and first initiative bevel gear and first driven bevel gear meshing, tubular metal resonator and connecting rod top are opened has the guide rail groove, and guide rail groove bottom inner wall forms normal running fit with the gyro wheel, open the constant head tank that has a plurality of evenly distributed around tubular metal resonator and the connecting rod, and constant head tank inner wall forms the joint cooperation with the.

Preferably, a second driven bevel gear is fixed at the bottom end of the threaded rod and meshed with a second driving bevel gear, a crank is fixed on the inner wall of the second driving bevel gear, the first support column is located on the lower side of the mounting groove and provided with a mounting groove opening, and the second driven bevel gear and the second driving bevel gear form a rotating fit with the mounting groove opening.

Preferably, the metal rod both ends are fixed at the fixed slot inner wall, the threaded rod both ends are passed through the bearing and are rotated and connect at the mounting groove inner wall.

Preferably, screw holes are formed in two sides of the first semicircular plate and two sides of the second semicircular plate, and the first semicircular plate and the second semicircular plate are tightly matched through bolts.

Preferably, the third servo motor is fixed to the top of the U-shaped frame, a first spring is arranged at the bottom of the fixing block, and the bottom end of the first spring is fixed to the inner wall of the limiting groove.

Preferably, the bottom of each of the first support column and the second support column is fixed with a bottom plate, and four corners of the bottom of each bottom plate are fixed with universal wheels.

Preferably, a second spring is fixed at one end of the conical block, and one end of the second spring is fixed on the inner wall of the rectangular groove.

Preferably, one end of the metal pipe is fixed on the outer wall of the other side of the second sliding block, sliding grooves are formed in two sides of the first connecting rod, and the inner diameter of each sliding groove is matched with the diameter of the second connecting rod.

The invention has the beneficial effects that:

1. the height of the projector can be automatically adjusted by using the first support column, the second support column, the first sliding block, the second sliding block, the metal rod, the first servo motor and the threaded rod, the height of the projector can be positioned by using the conical block during height adjustment, the phenomenon of gliding is avoided, the safety of the device is improved, the length of the device can be adjusted by using the metal tube and the connecting rod, so that the device can be suitable for different stages, and the practicability of the device is improved;

2. through using fixed frame, carousel and second servo motor, can carry out the level (l) ing to the direction of projecting apparatus, and utilize first connecting rod, metal ball and second connecting rod, can adjust the vertical angle of projecting apparatus, the device of messenger uses more conveniently, through the first semi-circular plate that uses translation mechanism to set up, the second semi-circular plate, the fixed block, the rubber ball, "U" shape frame, third servo motor, first initiative bevel gear, first driven bevel gear and gyro wheel, the regulation projecting apparatus that can be semi-automatic is in the position of device, and utilize the rubber ball to carry out the accurate positioning to it, make stage projection effect better.

Drawings

Fig. 1 is a schematic side sectional view of a stage projection support structure for theaters according to an embodiment 1 of the present invention;

fig. 2 is a schematic view of a second slider of the stage projection support structure for theaters according to the present invention;

fig. 3 is a schematic side sectional structure view of a translation mechanism of a stage projection support structure for a theater according to the present invention;

fig. 4 is a schematic partial sectional structure view of a translation mechanism of a stage projection support structure for a theater according to the present invention;

fig. 5 is a schematic perspective view of a first support column of a stage projection support structure for a theater according to the present invention;

fig. 6 is a schematic side sectional view of an embodiment 2 of a stage projection support structure for theaters according to the present invention.

In the figure: 1 a first supporting column, 2 a second supporting column, 3 a first sliding block, 4 a second sliding block, 5 a metal rod, 6 a first servo motor, 7 a threaded rod, 8 a metal pipe, 9 a connecting rod, 10 a translation mechanism, 11 a fixing frame, 12 a rotating disc, 13 a second servo motor, 14 a first connecting rod, 15 a metal ball, 16 a second connecting rod, 17 a projector, 18 a first semicircular plate, 19 a second semicircular plate, 20 a fixing block, 21 a rubber ball, 22 'U' -shaped frames, 23 a third servo motor, 24 a first driving bevel gear, 25 a first driven bevel gear, 26 a roller, 27 a bottom plate, 28 conical blocks, 29 a second driven bevel gear, 30 a second driving bevel gear and 31 a crank.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example 1, referring to fig. 1 to 5, a stage projection support structure for theaters comprises a first support column 1 and a second support column 2, wherein an installation groove is formed in an outer wall of one side of the first support column 1, a first slide block 3 is slidably connected to an inner wall of the installation groove, a fixing groove is formed in an outer wall of the other side of the second support column 2, a second slide block 4 is slidably connected to an inner wall of the fixing groove, a metal rod 5 is fixed to an inner wall of the fixing groove, a circular groove opening is formed in the second slide block 4, a metal rod 5 is slidably connected to an inner wall of the circular groove opening, a rectangular groove is formed in the inner wall of the second slide block 4 on one side of the circular groove opening, a conical block 28 is slidably connected to an inner wall of the rectangular groove, a plurality of clamping grooves are uniformly distributed in the outer wall of the other side of the metal rod 5, inner walls of the clamping grooves are in clamping fit with the conical block 28, a threaded hole, an output shaft of the first servo motor 6 is fixed at the top of the threaded rod 7 through a coupler, one end of the first slider 3 is fixed with a metal tube 8, the inner wall of the metal tube 8 is connected with a connecting rod 9 in a sliding mode, the height of the projector 17 can be automatically adjusted by using the first support column 1, the second support column 2, the first slider 3, the second slider 4, the metal rod 5, the first servo motor 6 and the threaded rod 7, the height of the projector can be positioned by using the conical block 28 during height adjustment, the phenomenon of gliding is avoided, the safety of the device is improved, the length of the device can be adjusted by using the metal tube 8 and the connecting rod 9, the device can be suitable for different stages, and the practicability of the device is improved;

the outer wall of the metal pipe 8 is connected with a translation mechanism 10 in a sliding manner, the bottom of the translation mechanism 10 is fixed with a fixed frame 11, the inner wall of the bottom of the fixed frame 11 is connected with a rotary disc 12 in a sliding manner, the bottom of the rotary disc 12 is fixed with a first connecting rod 14, the inner wall of the top of the fixed frame 11 is fixed with a second servo motor 13, the output shaft of the second servo motor 13 is fixed at the top of the rotary disc 12 through a coupler, the bottom end of the first connecting rod 14 is provided with a spherical groove, the inner wall of the spherical groove is connected with a metal ball 15 in a rotating manner, the bottom end of the metal ball 15 is fixed with a second connecting rod 16, the bottom end of the second connecting rod 16 is fixed with a projector 17 through a flange, the translation mechanism 10 comprises a first semicircular plate 18, a second semicircular plate 19, a fixed block 20, a rubber ball 21, a U-shaped frame 22, a third servo motor 23, a first driving bevel, the inner wall of the limiting groove is in sliding fit with the fixed block 20, the top of the fixed block 20 is provided with an arc-shaped groove, the inner wall of the arc-shaped groove is in rolling fit with the rubber ball 21, the top of the first semicircular plate 18 is provided with an installation opening, the roller 26 is rotatably connected with the inner walls at two sides of the installation opening through a bearing, the bottom end of a U-shaped frame 22 is fixed at the top of the first semicircular plate 18 positioned at two sides of the installation opening, the output shaft of a third servo motor 23 is fixed at the top of a first driving bevel gear 24 through a coupler, the first driving bevel gear 24 is meshed with a first driven bevel gear 25, the top of the metal tube 8 and the top of the connecting rod 9 are provided with guide rail grooves, the inner wall at the bottom of the guide rail grooves is in rotating fit with the roller 26, the peripheries of the metal tube 8 and the connecting rod 9 are provided with, the direction of the projector 17 can be adjusted horizontally, and the vertical angle of the projector 17 can be adjusted by using the first connecting rod 14, the metal ball 15 and the second connecting rod 16, so that the device is more convenient to use, and the position of the projector 17 in the device can be adjusted semi-automatically by using the first semicircular plate 18, the second semicircular plate 19, the fixed block 20, the rubber ball 21, the U-shaped frame 22, the third servo motor 23, the first driving bevel gear 24, the first driven bevel gear 25 and the roller 26 which are arranged on the translation mechanism 10, and the projector is accurately positioned by using the rubber ball 21, so that the stage projection effect is better;

two ends of a metal rod 5 are fixed on the inner wall of a fixing groove, two ends of a threaded rod 7 are rotatably connected on the inner wall of the mounting groove through bearings, screw holes are formed in two sides of a first semicircular plate 18 and a second semicircular plate 19, the first semicircular plate 18 and the second semicircular plate 19 are tightly connected and matched through bolts, a third servo motor 23 is fixed at the top of a U-shaped frame 22, a first spring is arranged at the bottom of the fixing block 20, the bottom end of the first spring is fixed on the inner wall of a limiting groove, a bottom plate 27 is fixed at the bottoms of a first supporting column 1 and a second supporting column 2, universal wheels are fixed at four corners of the bottom plate 27, a second spring is fixed at one end of a conical block 28, one end of the second spring is fixed on the inner wall of the rectangular groove, one end of a metal pipe 8 is fixed on the outer wall of the other side of a second sliding block 4, sliding.

Example 2, referring to fig. 2 to 6, a stage projection support structure for theaters comprises a first support column 1 and a second support column 2, wherein an installation groove is formed in an outer wall of one side of the first support column 1, a first slide block 3 is slidably connected to an inner wall of the installation groove, a fixing groove is formed in an outer wall of the other side of the second support column 2, a second slide block 4 is slidably connected to an inner wall of the fixing groove, a metal rod 5 is fixed to an inner wall of the fixing groove, a circular groove opening is formed in the second slide block 4, a metal rod 5 is slidably connected to an inner wall of the circular groove opening, a rectangular groove is formed in the inner wall of the second slide block 4 on one side of the circular groove opening, a conical block 28 is slidably connected to an inner wall of the rectangular groove, a plurality of clamping grooves are uniformly distributed in the outer wall of the other side of the metal rod 5, the inner wall of each clamping groove is in clamping fit with the conical block 28, the second driven bevel gear 29 is engaged with a second driving bevel gear 30, the inner wall of the second driving bevel gear 30 is fixed with a crank 31, the first support column 1 is positioned at the lower side of the mounting groove and is provided with a mounting groove opening, the second driven bevel gear 29 and the second driving bevel gear 30 are both in running fit with the inner wall of the mounting groove opening, one end of the first sliding block 3 is fixed with a metal tube 8, the inner wall of the metal tube 8 is connected with a connecting rod 9 in a sliding way, the height of the projector 17 can be manually adjusted by using the first support column 1, the second support column 2, the first sliding block 3, the second sliding block 4, the metal rod 5, the second driving bevel gear 30, the second driven bevel gear 29, the crank 31 and the threaded rod 7, the height of the projector can be positioned by using the tapered block 28 during height adjustment, the phenomenon of sliding down is avoided, the safety of the device is improved, and by using the metal tube, the length of the device can be adjusted, so that the device can be suitable for different stages, and the practicability of the device is improved;

the outer wall of the metal pipe 8 is connected with a translation mechanism 10 in a sliding manner, the bottom of the translation mechanism 10 is fixed with a fixed frame 11, the inner wall of the bottom of the fixed frame 11 is connected with a rotary disc 12 in a sliding manner, the bottom of the rotary disc 12 is fixed with a first connecting rod 14, the inner wall of the top of the fixed frame 11 is fixed with a second servo motor 13, the output shaft of the second servo motor 13 is fixed at the top of the rotary disc 12 through a coupler, the bottom end of the first connecting rod 14 is provided with a spherical groove, the inner wall of the spherical groove is connected with a metal ball 15 in a rotating manner, the bottom end of the metal ball 15 is fixed with a second connecting rod 16, the bottom end of the second connecting rod 16 is fixed with a projector 17 through a flange, the translation mechanism 10 comprises a first semicircular plate 18, a second semicircular plate 19, a fixed block 20, a rubber ball 21, a U-shaped frame 22, a third servo motor 23, a first driving bevel, the inner wall of the limiting groove is in sliding fit with the fixed block 20, the top of the fixed block 20 is provided with an arc-shaped groove, the inner wall of the arc-shaped groove is in rolling fit with the rubber ball 21, the top of the first semicircular plate 18 is provided with an installation opening, the roller 26 is rotatably connected with the inner walls at two sides of the installation opening through a bearing, the bottom end of a U-shaped frame 22 is fixed at the top of the first semicircular plate 18 positioned at two sides of the installation opening, the output shaft of a third servo motor 23 is fixed at the top of a first driving bevel gear 24 through a coupler, the first driving bevel gear 24 is meshed with a first driven bevel gear 25, the top of the metal tube 8 and the top of the connecting rod 9 are provided with guide rail grooves, the inner wall at the bottom of the guide rail grooves is in rotating fit with the roller 26, the peripheries of the metal tube 8 and the connecting rod 9 are provided with, the direction of the projector 17 can be adjusted horizontally, and the vertical angle of the projector 17 can be adjusted by using the first connecting rod 14, the metal ball 15 and the second connecting rod 16, so that the device is more convenient to use, and the position of the projector 17 in the device can be adjusted semi-automatically by using the first semicircular plate 18, the second semicircular plate 19, the fixed block 20, the rubber ball 21, the U-shaped frame 22, the third servo motor 23, the first driving bevel gear 24, the first driven bevel gear 25 and the roller 26 which are arranged on the translation mechanism 10, and the projector is accurately positioned by using the rubber ball 21, so that the stage projection effect is better;

two ends of a metal rod 5 are fixed on the inner wall of a fixing groove, two ends of a threaded rod 7 are rotatably connected on the inner wall of the mounting groove through bearings, screw holes are formed in two sides of a first semicircular plate 18 and a second semicircular plate 19, the first semicircular plate 18 and the second semicircular plate 19 are tightly connected and matched through bolts, a third servo motor 23 is fixed at the top of a U-shaped frame 22, a first spring is arranged at the bottom of the fixing block 20, the bottom end of the first spring is fixed on the inner wall of a limiting groove, a bottom plate 27 is fixed at the bottoms of a first supporting column 1 and a second supporting column 2, universal wheels are fixed at four corners of the bottom plate 27, a second spring is fixed at one end of a conical block 28, one end of the second spring is fixed on the inner wall of the rectangular groove, one end of a metal pipe 8 is fixed on the outer wall of the other side of a second sliding block 4, sliding.

By using the first support column 1, the second support column 2, the first slide block 3, the second slide block 4, the metal rod 5, the first servo motor 6 and the threaded rod 7, the height of the projector 17 can be automatically adjusted, and the height of the projector can be positioned by using the conical block 28 during height adjustment, so that the phenomenon of gliding is avoided, the safety of the device is improved, the length of the device can be adjusted by using the metal tube 8 and the connecting rod 9, the device can be suitable for different stages, and the practicability of the device is improved; through using fixed frame 11, carousel 12 and second servo motor 13, can carry out horizontal adjustment to the direction of projecting apparatus 17, and utilize first connecting rod 14, metal ball 15 and second connecting rod 16, can adjust the vertical angle of projecting apparatus 17, the device that makes uses more conveniently, through the first semicircle board 18 that uses translation mechanism 10 to set up, second semicircle board 19, fixed block 20, rubber ball 21, "U" shape frame 22, third servo motor 23, first initiative bevel gear 24, first driven bevel gear 25 and gyro wheel 26, the position of projecting apparatus 17 at the device that can semi-automatic regulation, and utilize rubber ball 21 to carry out the accurate positioning to it, make the projection effect better.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.