CN110645451A - Hanging bracket for visual teaching projector and control method of hanging bracket - Google Patents
Hanging bracket for visual teaching projector and control method of hanging bracket Download PDFInfo
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- CN110645451A CN110645451A CN201910989290.XA CN201910989290A CN110645451A CN 110645451 A CN110645451 A CN 110645451A CN 201910989290 A CN201910989290 A CN 201910989290A CN 110645451 A CN110645451 A CN 110645451A
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- telescopic
- electric cylinder
- electric
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
- F16M11/14—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction with ball-joint
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
- F16M11/28—Undercarriages for supports with one single telescoping pillar
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
- F16M13/027—Ceiling supports
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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
Abstract
The invention discloses a hanging bracket for a visual teaching projector and a control method of the hanging bracket, wherein the hanging bracket comprises a mounting plate, a telescopic column and a clamping frame, a fixed cylinder at the upper end of the telescopic column is fixedly connected with the mounting plate, and a telescopic cylinder at the lower end of the telescopic column is fixedly connected with the clamping frame; the clamping frame comprises a fixed plate, a rotating plate, an adjusting plate and a clamping claw, the telescopic cylinder is fixedly connected to the upper surface of the fixed plate, the upper surface of the rotating plate is rotatably connected with the lower surface of the fixed plate, the upper surface of the adjusting plate is connected with the lower surface of the rotating plate through an adjusting mechanism, and the lower surface of the adjusting plate is fixedly connected with the clamping claw; the adjusting mechanism comprises four first electric cylinders, and cylinder bases of the first electric cylinders are fixedly connected with the rotating plate and telescopic rods of the first electric cylinders are connected with the adjusting plate in a swinging mode. The invention increases the lifting and automatic adjusting functions and improves the adaptability to different projectors.
Description
Technical Field
The invention relates to the technical field of projection equipment, in particular to a hanging bracket for a visual teaching projector and a control method of the hanging bracket.
Background
At present, classrooms develop like multimedia classrooms gradually, and digital teaching is adopted in most cases in order to reduce the influence of chalk dust on the health of teachers and students. The most common of which is a projector, which is also one of the indispensable devices. Besides being used for teaching, the teaching aid is also visible in offices, academic exchanges and the like at any time.
In order to avoid the occupation of space for projection, the projector is mounted on the ceiling or ceiling of a room, and therefore, a projector hanger, also called a hoist, a mounting frame, or the like, is required. Gallows on the market includes pull rod and mount, the upper end and the lower extreme of pull rod respectively with roof and mount fixed connection, the projecting apparatus passes through fixed connection such as bolt on the mount.
The projector is fixed on the hanger and rarely moves in common conditions, the actual use condition is not the same, when the projector is abnormal, the key on the projector needs to be pressed in many cases, and the user needs to step on a stool or a ladder to press the key, so that the projector is inconvenient and has potential safety hazards. At present, most hangers do not have the function of automatic adjustment, namely the inclination cannot be adjusted, and the hangers cannot rotate automatically, and the adjustment also needs manual operation. Manual adjustment is also required if the image is not in the middle of the curtain. In addition, the dismouting of projecting apparatus all needs fasteners such as bolt to lock or unblock, and the size and the model of projecting apparatus are different moreover, and not all gallows can all be with different projecting apparatus adaptations, and the condition is the type according to the projecting apparatus and selects suitable gallows, consequently has the problem that can't match.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the hanging bracket for the visual teaching projector, so that the lifting and automatic adjusting functions are added, and meanwhile, the adaptability to different projectors is improved.
The invention provides a hanging bracket for a visual teaching projector, which comprises a mounting plate, a telescopic column and a clamping bracket, wherein a fixed cylinder at the upper end of the telescopic column is fixedly connected with the mounting plate, and a telescopic cylinder at the lower end of the telescopic column is fixedly connected with the clamping bracket;
the clamping frame comprises a fixed plate, a rotating plate, an adjusting plate and a clamping claw, the telescopic cylinder is fixedly connected to the upper surface of the fixed plate, the upper surface of the rotating plate is rotatably connected with the lower surface of the fixed plate, the upper surface of the adjusting plate is connected with the lower surface of the rotating plate through an adjusting mechanism, and the lower surface of the adjusting plate is fixedly connected with the clamping claw;
the adjusting mechanism comprises four first electric cylinders, the four first electric cylinders are respectively located in the middles of the four sides of the rotating plate, cylinder bases of the first electric cylinders are fixedly connected with the rotating plate, telescopic rods of the first electric cylinders are connected with the adjusting plate in a swinging mode, and the inclination angle of the adjusting plate is adjusted through the stretching of the first electric cylinders.
The invention has the beneficial effects that:
the fixed plate in this equipment passes through the bolt etc. and fixes on ceiling or roof, during the installation, thereby stretches out through flexible post and descend the height that need not ladder or stool just can touch with the holding frame. The projector is fixed on the clamping frame through the clamping claws, so that the projector can be quickly installed. If the image is not in the middle of the curtain after the projector is installed and fixed, the image can be corrected through the adjusting mechanism, and the specific correction method comprises the following steps:
if the image is down, the first cylinder on the left and right is kept still by extending the first cylinder on the rear while retracting the first cylinder on the front. In addition, because the telescopic rods of the four first electric cylinders are connected with the adjusting plate in a swinging mode, the adjusting plate and the projector incline forwards and upwards, and therefore the image moves upwards to achieve correction of the image. On the contrary, if the image is on the upper side, the left side of the image is higher, the right side of the image is lower, or the right side of the image is higher, the left side of the image is lower, the image can be corrected according to the adjustment principle.
Therefore, the equipment can realize automatic correction, avoid screwing screws or bolts and the like for manual correction, and has simple adjustment mode and convenient operation. Meanwhile, a stool or a ladder is not needed, accidental falling injury caused by climbing is avoided, and the safety level is improved.
Preferably, the telescopic link of first electric jar is equipped with the bulb, the regulating plate be equipped with the spherical recess that the bulb corresponds, install in spherical recess and then make the telescopic link of first electric jar all be connected with the regulating plate swing through the bulb.
The bulb of telescopic link can be at spherical recess internal rotation, and when two or four first electric jar in four first electric jar are flexible, rotor plate and regulating plate will not be parallel again, through the bulb at spherical recess internal rotation so that the regulating plate can incline toward arbitrary direction, avoid appearing the slope dead angle, influence is adjusted.
Preferably, the clamping jaw comprises a second and a third cylinder group; the second electric cylinder groups and the third electric cylinder groups are respectively provided with two groups, the cylinder bases of the two groups of second electric cylinder groups are fixed on two sides of the adjusting plate side by side along the horizontal direction, the cylinder bases of the two groups of second electric cylinder groups are opposite one by one, the telescopic rods of each group of second electric cylinder groups are fixedly connected with the cylinder bases of one group of third electric cylinder groups one by one, and the telescopic rods of the third electric cylinder groups of each group are vertically downward; each telescopic rod of the third electric cylinder group is fixedly connected with one horizontal branch rod, and then two horizontal branch rod groups which are distributed along the horizontal direction and are opposite to each other are formed.
The telescopic structure of the second cylinder group can realize the adjustment of the clamping claw in the horizontal direction, the telescopic structure of the third cylinder group can realize the adjustment of the clamping claw in the vertical direction, and the clamping claw can be matched with projectors of different sizes and different models through the combined adjustment of the second cylinder group and the third cylinder group. In addition, the dismouting of projecting apparatus only needs the flexible dismouting that can accomplish of second electric cylinder group and third electric cylinder group, has avoided using locking bolt, and is very convenient.
Preferably, a second motor is arranged inside the fixing plate, a rotating shaft of the second motor is fixedly connected with the rotating plate, and the rotating plate is driven to rotate by the rotation of the second motor.
When the image is proper in the vertical direction and is horizontally deviated to the right or left, the image can be corrected by rotating the second motor. In addition, the device can realize large-angle rotation through the second motor so as to meet the requirements of some special conditions. For example, the curtain cannot be used due to sunlight or other reasons, and the projector can be rotated to project images on other wall surfaces or curtains as an emergency scheme.
Preferably, the fixed cylinder is in transmission connection with the telescopic cylinder through an inner cylinder, the inner cylinder is rotatably connected into the fixed cylinder through a bearing, the telescopic cylinder is rotatably connected into the inner cylinder through threads, and the telescopic cylinder is axially telescopic by rotating the inner cylinder.
The inner tube only rotates and can not reciprocate, inject the inner tube in the fixed cylinder internal rotation through the bearing to the bearing has both played the effect of rotating the connection to the weight transmission of clamping frame and projecting apparatus to the fixed cylinder, can play the effect of support again.
Preferably, the mounting plate is provided with a first motor in transmission connection with the inner barrel.
The telescopic column is driven by the first motor to stretch out and draw back, so that automatic adjustment is realized, and the automation degree is improved.
Preferably, a transmission is arranged outside the fixed cylinder, an input shaft of the transmission is in transmission connection with a rotating shaft of the first motor, and an output shaft of the transmission penetrates through the side wall of the fixed cylinder to be in transmission connection with the upper part of the inner cylinder.
Because the weight of projecting apparatus and the weight of holding frame are heavier, in order to make the flexible more steady of flexible post, this equipment has adopted the derailleur in order to reduce flexible speed, improves flexible power simultaneously, satisfies the lift demand of heavier projecting apparatus.
Preferably, the rotating shaft of the first motor is in transmission connection with the input shaft of the transmission through a worm-and-gear mechanism, and the worm of the worm-and-gear mechanism is fixed to the rotating shaft of the first motor.
The worm and worm wheel mechanism has a dead locking function, namely, the worm wheel can only be driven by the worm to rotate, but the worm wheel cannot drive the worm to rotate, and by utilizing the characteristic, the self-locking of the lifting of the projector can be realized as long as the first motor stops rotating, other self-locking structures do not need to be designed independently, and the overall structure is optimized.
Preferably, the electric vehicle further comprises a controller and a remote controller, wherein the output end of the controller is electrically connected with the first motor, the second motor, the first electric cylinder, the second electric cylinder and the third electric cylinder respectively; the remote controller is wirelessly connected with the input end of the controller.
This equipment is furnished with the remote controller in order realizing each action, and the controller includes PLC circuit board and wireless receiving circuit board, and the remote controller sends each instruction, and in order to control the action of each part after the PLC circuit board received the instruction, replaced artifical manual regulation, and convenient operation is practical.
The invention also provides a control method of the hanging bracket, which is applied to the hanging bracket for the visual teaching projector and comprises the following steps:
s1: placing the projectors on the two groups of horizontal branch rods along the horizontal direction;
s2: sending an instruction through a remote controller to enable the controller to control the two second electric cylinder groups to contract, and further clamping the projector in the water direction;
s3: sending an instruction through a remote controller to enable the controller to control the two third electric cylinder groups to contract, so that the projector is clamped in the vertical direction;
s4: according to actual needs, a remote controller sends out an instruction to enable a controller to control one first electric cylinder of the first electric cylinder group to stretch and retract so as to adjust the inclination angle of the projector, and therefore the optimal inclination angle is achieved;
s5: according to actual needs, the controller sends out an instruction through the remote controller to control the second motor to rotate so as to achieve the optimal rotation angle.
The method can realize the quick installation of projectors of different models and sizes, and omits the complicated installation steps of the existing projector hanger. In addition, the first electric cylinder group, the second electric cylinder group and the third electric cylinder group work in combination with the second motor, the image is quickly corrected to be located in the middle of the curtain, all correction operations are completed through the remote controller, manual operation is not needed, the automation degree is high, and operation is convenient.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic structural diagram according to a first embodiment;
FIG. 2 is an enlarged view taken at A in FIG. 2;
FIG. 3 is a schematic view of the internal structure of FIG. 1;
fig. 4 is a bottom view of fig. 1.
In the drawing, the mounting plate 1, the fixed cylinder 2, the telescopic cylinder 3, the inner cylinder 4, the stop collar 5, the first motor 6, the transmission 7, the gear 8, the worm-and-gear mechanism 9, the fixed plate 10, the rotating plate 11, the adjusting plate 12, the second electric cylinder group 13, the third electric cylinder group 14, the horizontal branch rod group 15, the first electric cylinder 16, the ball 17, the spherical groove 18 and the bearing 19.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
The first embodiment is as follows:
as shown in fig. 1, the present embodiment provides a hanger for a vision teaching projector, which includes a mounting plate 1, a telescopic column and a holding frame, wherein a fixed cylinder 2 at the upper end of the telescopic column is fixedly connected to the mounting plate 1, and a telescopic cylinder 3 at the lower end of the telescopic column is fixedly connected to the holding frame. The specific structure of the telescopic column is as follows:
as shown in fig. 3, the telescopic cylinder 3 is telescopically connected in the fixed cylinder 2, the fixed cylinder 2 and the telescopic cylinder 3 are in transmission connection through the inner cylinder 4, the inner cylinder 4 is rotatably connected in the fixed cylinder 2 through a bearing 19, the telescopic cylinder 3 is rotatably connected in the inner cylinder 4 through threads, and the telescopic cylinder 3 is made to be telescopic along the axial direction by rotating the inner cylinder 4. Wherein, the outer surface of the telescopic cylinder 3 is provided with external threads, and the inner side wall of the inner cylinder 4 is provided with internal threads matched with the internal threads. Inner tube 4 only rotates and can not reciprocate, inject inner tube 4 in fixed section of thick bamboo 2 internal rotation through bearing 19 to bearing 19 has both played the effect of rotating the connection on transmitting fixed section of thick bamboo 2 with the weight of holding frame and projecting apparatus, can play the effect of support again. In addition, a limiting sleeve 5 for limiting the rotation of the telescopic cylinder 3 is further arranged in the fixed cylinder 2, and after the inner cylinder 4 rotates and does not move up and down, the telescopic cylinder 3 only moves up and down and does not rotate under the limiting action of the limiting sleeve 5.
In order to realize the automatic extension and retraction of the telescopic column, the mounting plate 1 is provided with a first motor 6 in transmission connection with the inner cylinder 4 in the embodiment, a transmission 7 is arranged outside the fixed cylinder 2, and a reduction gear set is arranged inside the transmission 7. An input shaft of the speed changer 7 is in transmission connection with a rotating shaft of the first motor 6, and an output shaft of the speed changer 7 penetrates through the side wall of the fixed cylinder 2 to be in transmission connection with the upper part of the inner cylinder 4. Specifically, a gear 8 is sleeved on the upper part of the inner cylinder 4, a gear 8 matched with the gear 8 of the inner cylinder 4 is arranged on an output shaft of the speed changer 7, and the output shaft of the speed changer 7 is in transmission connection with the inner cylinder 4 through vertical meshing of the two gears 8. The flexible of flexible post is through the drive of first motor 6, realizes automatically regulated, improves degree of automation. And because the weight of projecting apparatus and the weight of holding frame are heavier, in order to make the flexible more steady of flexible post, this equipment has adopted derailleur 7 in order to reduce flexible speed, improves flexible power simultaneously, satisfies the lift demand of heavier projecting apparatus. In order to realize the locking function of the telescopic column and avoid that the first motor 6 does not rotate but the telescopic column automatically descends, the rotating shaft of the first motor 6 is in transmission connection with the input shaft of the speed changer 7 through the worm-and-gear mechanism 9, and the worm of the worm-and-gear mechanism 9 is fixed on the rotating shaft of the first motor 6. The worm and worm gear mechanism 9 has a locking function, namely, the worm can only drive the worm gear to rotate and the worm gear cannot drive the worm gear to rotate, and by utilizing the characteristic, the self-locking of the lifting of the projector can be realized as long as the first motor 6 stops rotating, other self-locking structures do not need to be designed independently, and the overall structure is optimized.
The clamping frame in the embodiment comprises a fixing plate 10, a rotating plate 11, an adjusting plate 12 and a clamping claw, wherein the telescopic cylinder 3 is fixedly connected to the upper surface of the fixing plate 10, the upper surface of the rotating plate 11 is rotatably connected to the lower surface of the fixing plate 10, the upper surface of the adjusting plate 12 is connected to the lower surface of the rotating plate 11 through an adjusting mechanism, and the lower surface of the adjusting plate 12 is fixedly connected to the clamping claw. The specific structure of the clamping claw is as follows:
the clamping jaws comprise a second electric cylinder set 13 and a third electric cylinder set 14; the second electric cylinder group 13 and the third electric cylinder group 14 are respectively provided with two groups, cylinder bases of the two groups of second electric cylinder groups 13 are fixed on two sides of the adjusting plate 12 side by side along the horizontal direction, the cylinder bases of the two groups of second electric cylinder groups 13 are opposite to each other one by one, telescopic rods of the second electric cylinder groups 13 are fixedly connected with cylinder bases of the third electric cylinder groups 14 one by one, and telescopic rods of the third electric cylinder groups 14 are all vertically downward; each telescopic rod of the third electric cylinder group 14 is fixedly connected with a horizontal branch rod, so as to form two horizontal branch rod groups 15 which are distributed along the horizontal direction and are opposite to each other. The telescopic structure of the second electric cylinder group 13 can realize the adjustment of the clamping claw in the horizontal direction, the telescopic structure of the third electric cylinder group 14 can realize the adjustment of the clamping claw in the vertical direction, and the clamping claw can be matched with projectors of different sizes and models through the combined adjustment of the second electric cylinder group 13 and the third electric cylinder group 14. In addition, the dismouting of projecting apparatus only needs the flexible dismouting that can accomplish of second electric cylinder group 13 and third electric cylinder group 14, has avoided using locking bolt, and is very convenient.
In this embodiment, the tilt angle of the projector is adjusted by the following structure:
as shown in fig. 1 and 4, the adjusting mechanism includes four first electric cylinders 16, the four first electric cylinders 16 are respectively located in the middle of four sides of the rotating plate 11, the cylinder bases of the first electric cylinders 16 are fixedly connected to the rotating plate 11, the telescopic rods of the first electric cylinders 16 are connected to the adjusting plate 12 in a swinging manner, and the inclination angle of the adjusting plate 12 is adjusted by the expansion and contraction of the first electric cylinders 16. As shown in fig. 2, the telescopic rod of the first electric cylinder 16 is provided with a ball head 17, the adjusting plate 12 is provided with a spherical groove 18 corresponding to the ball head 17, and the ball head 17 is mounted in the spherical groove 18, so that the telescopic rod of the first electric cylinder 16 is connected with the adjusting plate 12 in a swinging manner. The bulb 17 of telescopic link can be at spherical recess 18 internal rotation, and when two in four first electric jar 16 or four first electric jar 16 were flexible, rotor plate 11 and regulating plate 12 will no longer be parallel, through bulb 17 internal rotation in spherical recess 18 so that regulating plate 12 can incline toward arbitrary direction, avoid appearing the slope dead angle, influence the regulation.
The principle of the tilt angle adjustment is as follows:
if the image is off-center, the first electric cylinder 16 on the left and right is held stationary by extending the first electric cylinder 16 on the rear while retracting the first electric cylinder 16 on the front. In addition, since the telescopic rods of the four first electric cylinders 16 are connected with the adjusting plate 12 in a swinging manner, the adjusting plate 12 and the projector are inclined forward and upward, so that the image moves upward to realize the correction of the image. On the contrary, if the image is on the upper side, the left side of the image is higher, the right side of the image is lower, or the right side of the image is higher, the left side of the image is lower, the image can be corrected according to the adjustment principle. In addition to the above problems, the image may be shifted to the right or left horizontally in a vertical direction, and the entire image may need to be shifted. In this embodiment, a second motor is disposed inside the fixed plate 10, a rotating shaft of the second motor is fixedly connected to the rotating plate 11, and the rotating plate 11 is driven to rotate by the rotation of the second motor. And rotating the second motor to correct the image. In addition, the device can realize large-angle rotation through the second motor so as to meet the requirements of some special conditions. For example, the curtain cannot be used due to sunlight or other reasons, and the projector can be rotated to project images on other wall surfaces or curtains as an emergency scheme.
In order to realize the control of the present device, the present embodiment further includes a controller and a remote controller, which are not shown in the figure. The output end of the controller is respectively and electrically connected with the first motor 6, the second motor, the first electric cylinder 16, the second electric cylinder and the third electric cylinder; the remote controller is wirelessly connected with the input end of the controller. This equipment is furnished with the remote controller in order realizing each action, and the controller includes PLC circuit board and wireless receiving circuit board, and the remote controller sends each instruction, and in order to control the action of each part after the PLC circuit board received the instruction, replaced artifical manual regulation, and convenient operation is practical.
Example two:
the invention also provides a control method of the hanging bracket, which is applied to the hanging bracket for the visual teaching projector in the first embodiment and comprises the following steps:
s1: placing the projectors on the two groups of horizontal branch rods along the horizontal direction;
s2: sending an instruction through a remote controller to enable the controller to control the two second electric cylinder groups to contract, and further clamping the projector in the water direction;
s3: sending an instruction through a remote controller to enable the controller to control the two third electric cylinder groups to contract, so that the projector is clamped in the vertical direction;
s4: according to actual needs, a remote controller sends out an instruction to enable a controller to control one first electric cylinder of the first electric cylinder group to stretch and retract so as to adjust the inclination angle of the projector, and therefore the optimal inclination angle is achieved;
s5: according to actual needs, the controller sends out an instruction through the remote controller to control the second motor to rotate so as to achieve the optimal rotation angle.
The method can realize the quick installation of projectors of different models and sizes, and omits the complicated installation steps of the existing projector hanger. In addition, the first electric cylinder group, the second electric cylinder group and the third electric cylinder group work in combination with the second motor, the image is quickly corrected to be located in the middle of the curtain, all correction operations are completed through the remote controller, manual operation is not needed, the automation degree is high, and operation is convenient.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (10)
1. The utility model provides a gallows for vision teaching projecting apparatus which characterized in that: the telescopic device comprises a mounting plate, a telescopic column and a clamping frame, wherein a fixed cylinder at the upper end of the telescopic column is fixedly connected with the mounting plate, and a telescopic cylinder at the lower end of the telescopic column is fixedly connected with the clamping frame;
the clamping frame comprises a fixed plate, a rotating plate, an adjusting plate and a clamping claw, the telescopic cylinder is fixedly connected to the upper surface of the fixed plate, the upper surface of the rotating plate is rotatably connected with the lower surface of the fixed plate, the upper surface of the adjusting plate is connected with the lower surface of the rotating plate through an adjusting mechanism, and the lower surface of the adjusting plate is fixedly connected with the clamping claw;
the adjusting mechanism comprises four first electric cylinders, the four first electric cylinders are respectively located in the middles of the four sides of the rotating plate, cylinder bases of the first electric cylinders are fixedly connected with the rotating plate, telescopic rods of the first electric cylinders are connected with the adjusting plate in a swinging mode, and the inclination angle of the adjusting plate is adjusted through the stretching of the first electric cylinders.
2. A hanger for a vision teaching projector as set forth in claim 1 wherein: the telescopic link of first electric jar is equipped with the bulb, the regulating plate be equipped with the spherical recess that the bulb corresponds, install in spherical recess and then make the telescopic link of first electric jar all be connected with the regulating plate swing through the bulb.
3. A hanger for a vision teaching projector as set forth in claim 1 wherein: the clamping claw comprises a second electric cylinder group and a third electric cylinder group; the second electric cylinder groups and the third electric cylinder groups are respectively provided with two groups, the cylinder bases of the two groups of second electric cylinder groups are fixed on two sides of the adjusting plate side by side along the horizontal direction, the cylinder bases of the two groups of second electric cylinder groups are opposite one by one, the telescopic rods of each group of second electric cylinder groups are fixedly connected with the cylinder bases of one group of third electric cylinder groups one by one, and the telescopic rods of the third electric cylinder groups of each group are vertically downward; each telescopic rod of the third electric cylinder group is fixedly connected with one horizontal branch rod, and then two horizontal branch rod groups which are distributed along the horizontal direction and are opposite to each other are formed.
4. A hanger for a vision teaching projector as set forth in claim 3 wherein: the fixed plate is internally provided with a second motor, a rotating shaft of the second motor is fixedly connected with the rotating plate, and the rotating plate is driven to rotate by the rotation of the second motor.
5. A hanger for a vision teaching projector as claimed in claim 4 wherein: the inner tube is rotatably connected in the fixed cylinder through a bearing, the telescopic cylinder is rotatably connected in the inner tube through threads, and the telescopic cylinder is telescopic along the axial direction by rotating the inner tube.
6. A hanger for a vision teaching projector as claimed in claim 5, wherein: the mounting panel be equipped with the first motor of inner tube transmission connection.
7. A hanger for a vision teaching projector as claimed in claim 6 wherein: and a speed changer is arranged outside the fixed cylinder, an input shaft of the speed changer is in transmission connection with a rotating shaft of the first motor, and an output shaft of the speed changer penetrates through the side wall of the fixed cylinder to be in transmission connection with the upper part of the inner cylinder.
8. A hanger for a vision teaching projector as set forth in claim 7 wherein: and the rotating shaft of the first motor is in transmission connection with the input shaft of the transmission through a worm-and-gear mechanism, and the worm of the worm-and-gear mechanism is fixed on the rotating shaft of the first motor.
9. A hanger for a vision teaching projector as claimed in claim 6 wherein: the output end of the controller is respectively and electrically connected with the first motor, the second motor, the first electric cylinder, the second electric cylinder and the third electric cylinder; the remote controller is wirelessly connected with the input end of the controller.
10. A control method of a hanger is characterized in that: a hanger for a vision teaching projector as applied to claim 9, comprising the steps of:
s1: placing the projectors on the two groups of horizontal branch rods along the horizontal direction;
s2: sending an instruction through a remote controller to enable the controller to control the two second electric cylinder groups to contract, and further clamping the projector in the water direction;
s3: sending an instruction through a remote controller to enable the controller to control the two third electric cylinder groups to contract, so that the projector is clamped in the vertical direction;
s4: according to actual needs, a remote controller sends out an instruction to enable a controller to control one first electric cylinder of the first electric cylinder group to stretch and retract so as to adjust the inclination angle of the projector, and therefore the optimal inclination angle is achieved;
s5: according to actual needs, the controller sends out an instruction through the remote controller to control the second motor to rotate so as to achieve the optimal rotation angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910989290.XA CN110645451A (en) | 2019-10-17 | 2019-10-17 | Hanging bracket for visual teaching projector and control method of hanging bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910989290.XA CN110645451A (en) | 2019-10-17 | 2019-10-17 | Hanging bracket for visual teaching projector and control method of hanging bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110645451A true CN110645451A (en) | 2020-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910989290.XA Pending CN110645451A (en) | 2019-10-17 | 2019-10-17 | Hanging bracket for visual teaching projector and control method of hanging bracket |
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| Country | Link |
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| CN (1) | CN110645451A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112413305A (en) * | 2020-11-12 | 2021-02-26 | 河南理工大学 | Portable emergent projection arrangement that imparts knowledge to students |
| CN113154195A (en) * | 2021-03-12 | 2021-07-23 | 南京信息职业技术学院 | Outdoor photography equipment based on thing networking |
| CN113864601A (en) * | 2021-09-30 | 2021-12-31 | 安徽博广慧教育科技有限公司 | Teaching auxiliary equipment and control system thereof |
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| CN101994895A (en) * | 2010-11-10 | 2011-03-30 | 深圳雅图数字视频技术有限公司 | Support frame |
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Application publication date: 20200103 |
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