CN111193914A - Projector convenient to calibration projection position and good stability - Google Patents
Projector convenient to calibration projection position and good stability Download PDFInfo
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- CN111193914A CN111193914A CN202010024265.0A CN202010024265A CN111193914A CN 111193914 A CN111193914 A CN 111193914A CN 202010024265 A CN202010024265 A CN 202010024265A CN 111193914 A CN111193914 A CN 111193914A
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- mounting box
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- rotating
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
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Abstract
The invention discloses a projector convenient for calibrating a projection position and good in stability, which comprises a projector main body, a lifting mechanism, a fixing mechanism and an air passage, wherein a bottom plate is fixed on the lower surface of the projector main body through bolts, a rotating rod is arranged below the middle position of the bottom plate, a supporting plate is arranged on the outer side of the rotating rod, a rotating mechanism is arranged below the rotating rod, the lifting mechanisms are respectively arranged at four corners of the outer edge of the supporting plate, a mounting box is connected below the lifting mechanism, the fixing mechanism is connected below the mounting box, a lifting motor is arranged inside the mounting box, a transverse plate is fixed on the outer surface of the inner side of the mounting box, an air pipe is arranged on the lower surface of the transverse plate, a miniature air pump is fixed in the middle position of the upper surface of the transverse plate, and a connecting pipe is arranged at the connecting position. The invention improves the accuracy of the projector in adjusting the calibration projection position, and is adsorbed on the desktop through negative pressure, thereby being beneficial to improving the fixation stability of the projector.
Description
Technical Field
The invention relates to the technical field of projection equipment, in particular to a projector which is convenient for calibrating a projection position and has good stability.
Background
A projector, also known as a projector, is a device capable of projecting images or videos onto a curtain, and can be connected with a computer, a VCD, a DVD, a BD, a game machine, a DV and the like through different interfaces to play corresponding video signals, the projector is widely applied to families, offices, schools and entertainment places at present, different types such as a CRT, an LCD, a DLP and the like are provided according to different working modes, meanwhile, the mounting modes of the projector can be divided into a desk type front projection, a ceiling type front projection, a desk type rear projection and a ceiling type rear projection, in the projector, the projector with the weight lower than 2 kilograms is generally defined as a business portable projector, the weight is different from that of a light and thin notebook computer, the business portable projector has the advantages of small volume, light weight and strong mobility, is a substitute for the traditional slide projector and large and medium projector, the light and thin notebook computer are matched with the business portable projector, is a preferred collocation for mobile business users during mobile business demonstration.
However, when a commercial portable projector in the market is used, the projector is often placed unstably due to unevenness of a desktop or the ground, so that a projection picture is prone to tilting, and even jittering occurs when the projector works, so that the picture is unstable, and the viewing experience of an observer is easily influenced.
Disclosure of Invention
The invention aims to provide a projector which is convenient to calibrate a projection position and good in stability, and solves the problems that when an existing commercial portable projector in the market is used, the projector is not stably placed due to the fact that a desktop or the ground is not flat, a projection picture is prone to being inclined, even the projector shakes during working, the picture is unstable, and the viewing experience of an observer is prone to being influenced.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a projector convenient to calibration projection position and stability are good, includes projector main part, elevating system, fixed establishment and air flue, the lower surface of projector main part has the bottom plate through the bolt fastening, and installs the bull stick below the intermediate position of bottom plate, the outside of bull stick is provided with the layer board, and the below of bull stick installs rotary mechanism, elevating system installs respectively in the outward flange four corners of layer board, and elevating system's below is connected with the mounting box, fixed establishment connects in the below of mounting box, and the internally mounted of mounting box has elevator motor, the inboard external fixed surface of mounting box has the diaphragm, and the lower surface mounting of diaphragm has the trachea, the upper surface intermediate position of diaphragm is fixed with miniature air pump, and miniature air pump installs the connecting pipe with tracheal junction.
Preferably, the rotating mechanism comprises a central gear, a driving gear, a driven gear and a rotating motor, the right side of the central gear is connected with the driven gear, the left side of the central gear is connected with the driving gear, and the rotating motor is installed in the middle of the driving gear.
Preferably, the central gear is engaged with the driving gear and the driven gear, a rotating structure is formed between the rotating motor and the driving gear, the rotating rod penetrates through the supporting plate, and meanwhile, the rotating rod is fixedly connected with the central gear.
Preferably, elevating system includes lead screw, ball base, connecting block and hinge, and the outside threaded connection of lead screw has the ball base, the top of ball base is fixed with the connecting block, and the hinge is installed to the top of connecting block.
Preferably, the number of the lifting mechanisms is 4, the lifting mechanisms form a rotating structure with the supporting plate through hinges, and the screw rod penetrates through the supporting plate.
Preferably, elevator motor's the left and right sides all installs, and damping spring uniform space distributes between mounting box and elevator motor to the mounting box passes through and constitutes elastic structure between damping spring and the elevator motor.
Preferably, the fixing mechanism comprises a hard cover shell, an air hole and an anti-slip cushion, the air hole is formed in the outer wall of the right side of the hard cover shell, and the anti-slip cushion is connected to the inner side of the hard cover shell.
Preferably, the structure of hard housing and antiskid cushion is sucking disc type structure, and the upper end surface of hard housing and the lower extreme inner wall of mounting box all seted up the screw thread to the screw thread size between hard housing and the mounting box is identical.
Preferably, the air flue is arranged on the outer wall of the right side of the mounting box, the horizontal center line of the air flue and the horizontal center line of the air hole are overlapped, and the fixing mechanism forms a communicating structure with the micro air pump through the air pipe and the connecting pipe.
Compared with the prior art, the invention has the following beneficial effects:
1. the rotating mechanism is arranged to drive the bottom plate and the rotating rod to integrally rotate relative to the supporting plate, so that a user can conveniently adjust the horizontal projection angle of the projector main body according to use requirements, meanwhile, the central gear is far larger than the driving gear, and the teeth on the gear are distributed in a fine and compact manner, so that the division of the angle is more delicate, and the accuracy of the projector main body in angle adjustment is improved;
2. according to the invention, each lifting mechanism is arranged in an independent state and can rotate relative to the supporting plate, so that when a user adjusts the lifting mechanisms at different positions, the projector main body can be adjusted to be in a slightly inclined state so as to be suitable for uneven desktops and floors, the whole projector main body is ensured to be in a horizontal state, and the stability and the quality of a projection picture are improved;
3. the lifting mechanisms are driven and adjusted through the lifting motors, so that each lifting mechanism can be electrically adjusted, the electric lifting mechanism is more convenient and labor-saving compared with the conventional manual adjustment, the screw rod is connected with the ball base through the threads, and the thread pitch of the threads is tighter, so that the accuracy of the lifting mechanism in lifting adjustment is improved;
4. the damping spring is arranged between the mounting box and the lifting motor, so that the lifting motor can damp the vibration generated by the lifting motor by utilizing the elastic action of the damping spring, the vibration force is reduced and transmitted to the mounting box, the mounting box is prevented from being strongly vibrated, and the stability of the outer side of the mounting box is maintained;
5. the fixing mechanism is fixedly connected with the mounting box through the screw thread effect, convenience is provided for later-stage disassembly, maintenance and replacement, and the miniature air pump can suck and remove air in the hard cover shell and the anti-slip soft cushion through the air pipe, so that the interiors of the hard cover shell and the anti-slip soft cushion are in a negative pressure state, the adsorption effect of the hard cover shell, the anti-slip soft cushion and the table top is further improved, and the fixing stability of the whole fixing mechanism is favorably improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic bottom view of the rotary mechanism of the present invention;
FIG. 3 is a schematic structural view of a fixing mechanism according to the present invention;
FIG. 4 is a schematic view of the mounting structure of the lifting mechanism and the lifting motor of the present invention;
FIG. 5 is an enlarged view of a portion A of FIG. 4 according to the present invention.
In the figure: 1. a projector main body; 2. a base plate; 3. a rotating rod; 4. a support plate; 5. a rotation mechanism; 501. a sun gear; 502. a driving gear; 503. a driven gear; 504. a rotating electric machine; 6. a lifting mechanism; 601. a screw rod; 602. a ball base; 603. connecting blocks; 604. a hinge; 7. mounting a box; 8. a lifting motor; 9. a fixing mechanism; 901. a hard cover shell; 902. air holes; 903. an anti-slip soft cushion; 10. a transverse plate; 11. an air tube; 12. a micro air pump; 13. a connecting pipe; 14. an airway; 15. a shock absorbing spring.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a projector convenient for calibrating a projection position and having good stability includes a projector body 1, a bottom plate 2, a rotating rod 3, a supporting plate 4, a rotating mechanism 5, a central gear 501, a driving gear 502, a driven gear 503, a rotating motor 504, a lifting mechanism 6, a screw rod 601, a ball base 602, a connecting block 603, a hinge 604, a mounting box 7, a lifting motor 8, a fixing mechanism 9, a hard cover 901, an air hole 902, an anti-slip cushion 903, a transverse plate 10, an air tube 11, a micro air pump 12, a connecting tube 13, an air passage 14 and a damping spring 15, wherein the bottom plate 2 is fixed on a lower surface of the projector body 1 through bolts, the rotating rod 3 is installed below a middle position of the bottom plate 2, the supporting plate 4 is installed on an outer side of the rotating rod 3, the rotating mechanism 5 is installed below the rotating rod 3, the lifting mechanisms 6 are respectively installed at four corners of an outer edge of the supporting plate 4, the fixing mechanism 9 is connected below the mounting box 7, the lifting motor 8 is installed inside the mounting box 7, the transverse plate 10 is fixed on the outer surface of the inner side of the mounting box 7, the air pipe 11 is installed on the lower surface of the transverse plate 10, the miniature air pump 12 is fixed in the middle of the upper surface of the transverse plate 10, and the connecting pipe 13 is installed at the connecting position of the miniature air pump 12 and the air pipe 11;
the rotating mechanism 5 comprises a central gear 501, a driving gear 502, a driven gear 503 and a rotating motor 504, the right side of the central gear 501 is connected with the driven gear 503, the left side of the central gear 501 is connected with the driving gear 502, the rotating motor 504 is installed in the middle of the driving gear 502, the central gear 501, the driving gear 502 and the driven gear 503 are all connected in a meshed manner, a rotating structure is formed between the rotating motor 504 and the driving gear 502, the rotating rod 3 penetrates through the inside of the supporting plate 4, meanwhile, the rotating rod 3 and the central gear 501 are fixedly connected, the rotating motor 504 in the rotating mechanism 5 is arranged as a driving force to drive the driving gear 502 to rotate, the driving gear 502 is meshed with the central gear 501, and the central gear 501 is meshed with the driven gear 503, so that the central gear 501 can rotate between the driving gear 502 and the driven gear 503, therefore, the bottom plate 2 and the rotating rod 3 are driven to integrally rotate relative to the supporting plate 4, so that a user can conveniently adjust the horizontal projection angle of the projector main body 1 according to use requirements, meanwhile, the central gear 501 is far larger than the driving gear 502, and the teeth on the gear are distributed finely and compactly, so that the division of the angle is more detailed, and the accuracy of the projector main body 1 in angle adjustment is improved;
the lifting mechanism 6 comprises a screw 601, a ball base 602, a connecting block 603 and a hinge 604, the ball base 602 is connected to the outer side of the screw 601 through a screw thread, the connecting block 603 is fixed above the ball base 602, the hinge 604 is installed above the connecting block 603, the number of the lifting mechanisms 6 is 4, the lifting mechanisms 6 form a rotating structure with the supporting plate 4 through the hinge 604, the screw 601 penetrates through the supporting plate 4, four lifting mechanisms 6 are arranged to support four corners of the supporting plate 4 respectively to keep the supporting plate 4 stable, each lifting mechanism 6 is in an independent state and can rotate relative to the supporting plate 4, so that when a user adjusts the lifting mechanisms 6 at different positions, the projector body 1 can be adjusted to be in a slightly inclined state to adapt to uneven desktops and grounds, thereby ensuring that the whole projector body 1 is in a horizontal state, the stability and the quality of a projection picture are improved;
the lifting mechanisms 6 are arranged to be driven and adjusted through the lifting motor 8, so that each lifting mechanism 6 can be electrically adjusted, compared with the existing manual adjustment, the manual adjustment is more convenient and labor-saving, the screw rod 601 is connected with the ball base 602 through the threads, the thread pitch of the threads is tighter, the accuracy of the lifting mechanism 6 in lifting adjustment is favorably improved, the left side and the right side of the lifting motor 8 are both provided with the damping springs 15, the damping springs 15 are uniformly and equidistantly distributed between the mounting box 7 and the lifting motor 8, the mounting box 7 forms an elastic structure with the lifting motor 8 through the damping springs 15, the damping springs 15 are arranged between the mounting box 7 and the lifting motor 8, the lifting motor 8 can conveniently damp the vibration generated by the lifting motor 8 by utilizing the elastic action of the damping springs 15, the vibration force is reduced and transmitted to the mounting box 7, and the mounting box 7 is favorably prevented from being strongly vibrated, so as to maintain the stability of the outer side of the mounting box 7;
the fixing mechanism 9 comprises a hard cover shell 901, an air hole 902 and an anti-slip cushion 903, the right outer wall of the hard cover shell 901 is provided with the air hole 902, the inner side of the hard cover shell 901 is connected with the anti-slip cushion 903, the hard cover shell 901 and the anti-slip cushion 903 are both in a sucker type structure, the outer surface of the upper end of the hard cover shell 901 and the inner wall of the lower end of the mounting box 7 are both provided with threads, the thread size between the hard cover shell 901 and the mounting box 7 is matched, the fixing mechanism 9 is fixedly connected with the mounting box 7 through the thread action, convenience is provided for later-stage disassembly maintenance and replacement, the air passage 14 is arranged on the right outer wall of the mounting box 7, the horizontal center line of the air passage 14 and the horizontal center line of the air hole 902 are mutually overlapped, the fixing mechanism 9 forms a communicating structure with the micro air pump 12 through an air pipe 11 and a connecting pipe 13, the micro air pump 12 is arranged to suck the, therefore, the hard cover shell 901 and the anti-skid soft pad 903 are in a negative pressure state, the adsorption effect of the hard cover shell 901, the anti-skid soft pad 903 and the table top is further improved, and the fixing stability of the whole fixing mechanism 9 is improved.
The working principle is as follows: for the projector which is convenient for calibrating the projection position and has good stability, the whole device is firstly arranged on a desktop, at the moment, the anti-skid soft pad 903 in the fixing mechanism 9 is in contact with the desktop, the hard cover shell 901 supports the whole device, then the whole device is connected with an external power supply, the micro air pump 12 on the transverse plate 10 is started, the transverse plate 10 fixedly supports the micro air pump 12, the micro air pump 12 works in forward rotation, so that the air between the anti-skid soft pad 903 and the desktop is conveyed into the air inlet pipe 11 through the air hole 902 and the air passage 14, then is conveyed into the connecting pipe 13 through the air pipe 11, and is discharged through the micro air pump 12, so that the air between the anti-skid soft pad 903 and the desktop is discharged, and the fixing mechanism 9 is stably;
then, according to the square effect of the picture projected by the projector main body 1, the projector main body 1 is adjusted to be in a horizontal state, if the picture deviates to one of four corners, the lifting motor 8 below the corresponding corner can be started, the lifting motor 8 works to drive the screw rod 601 in the lifting mechanism 6 to rotate, so that the ball base 602 drives the connecting block 603 to move upwards (or downwards) along the screw rod 601, at the moment, the supporting plate 4 slightly rotates around the hinge 604 relative to the connecting block 603, so that the angle of the projector main body 1 is adjusted, when the lifting motor 8 works, vibration is generated, the vibration pressure is transmitted to the damping spring 15, the damping spring 15 is stressed and compressed to generate a reverse acting force to offset partial pressure, the vibration pressure transmitted to the mounting box 7 is greatly reduced, and the stability of the mounting box 7 is maintained;
after the projector main body 1 is adjusted to be horizontal, the rotating motor 504 in the rotating mechanism 5 is started, the rotating motor 504 drives the driving gear 502 to rotate, the driving gear 502 is meshed with the central gear 501, the central gear 501 is driven to rotate, the central gear 501 is meshed with the driven gear 503, the driven gear 503 is driven to rotate, meanwhile, the central gear 501 drives the rotating rod 3 to rotate inside the supporting plate 4, the rotating rod 3 drives the bottom plate 2 to rotate, the projector main body 1 fixed on the bottom plate 2 horizontally rotates, the horizontal angle of the projector main body 1 is adjusted, and therefore the whole using process of the projector with the advantages of convenience in projection position calibration and good stability is completed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a projector convenient to calibration projection position and stability are good, includes projector main part (1), elevating system (6), fixed establishment (9) and air flue (14), its characterized in that: a bottom plate (2) is fixed on the lower surface of the projector main body (1) through bolts, a rotating rod (3) is arranged below the middle position of the bottom plate (2), a supporting plate (4) is arranged on the outer side of the rotating rod (3), a rotating mechanism (5) is arranged below the rotating rod (3), the lifting mechanisms (6) are respectively arranged at four corners of the outer edge of the supporting plate (4), and the lower part of the lifting mechanism (6) is connected with a mounting box (7), the fixing mechanism (9) is connected with the lower part of the mounting box (7), a lifting motor (8) is arranged in the mounting box (7), a transverse plate (10) is fixed on the outer surface of the inner side of the mounting box (7), an air pipe (11) is arranged on the lower surface of the transverse plate (10), a miniature air pump (12) is fixed in the middle of the upper surface of the transverse plate (10), and a connecting pipe (13) is arranged at the joint of the micro air pump (12) and the air pipe (11).
2. The projector according to claim 1, wherein the projector is capable of calibrating a projection position and has good stability, and the projector comprises: the rotating mechanism (5) comprises a central gear (501), a driving gear (502), a driven gear (503) and a rotating motor (504), the driven gear (503) is connected to the right side of the central gear (501), the driving gear (502) is connected to the left side of the central gear (501), and the rotating motor (504) is installed in the middle of the driving gear (502).
3. The projector according to claim 2, wherein the projector is capable of calibrating the projection position and has good stability, and the projector further comprises: the central gear (501) is in meshed connection with the driving gear (502) and the driven gear (503), a rotating structure is formed between the rotating motor (504) and the driving gear (502), the rotating rod (3) penetrates through the supporting plate (4), and meanwhile the rotating rod (3) is fixedly connected with the central gear (501).
4. The projector according to claim 1, wherein the projector is capable of calibrating a projection position and has good stability, and the projector comprises: elevating system (6) include lead screw (601), ball base (602), connecting block (603) and hinge (604), and the outside threaded connection of lead screw (601) has ball base (602), the top of ball base (602) is fixed with connecting block (603), and hinge (604) are installed to the top of connecting block (603).
5. The projector according to claim 4, wherein the projector is capable of calibrating the projection position and has good stability, and the projector further comprises: the number of the lifting mechanisms (6) is 4, the lifting mechanisms (6) form a rotating structure with the supporting plate (4) through hinges (604), and the screw rods (601) penetrate through the supporting plate (4).
6. The projector according to claim 1, wherein the projector is capable of calibrating a projection position and has good stability, and the projector comprises: the left and right sides of elevator motor (8) all installs, and damping spring (15) even equidistance distributes between mounting box (7) and elevator motor (8) to constitute elastic construction between mounting box (7) pass through damping spring (15) and elevator motor (8).
7. The projector according to claim 1, wherein the projector is capable of calibrating a projection position and has good stability, and the projector comprises: the fixing mechanism (9) comprises a hard casing (901), an air hole (902) and an anti-skidding cushion (903), the air hole (902) is formed in the outer wall of the right side of the hard casing (901), and the anti-skidding cushion (903) is connected to the inner side of the hard casing (901).
8. The projector according to claim 7, wherein the projector is capable of calibrating the projection position and has good stability, and the projector further comprises: the hard cover shell (901) and the anti-skid soft pad (903) are both sucker-type structures, the outer surface of the upper end of the hard cover shell (901) and the inner wall of the lower end of the mounting box (7) are both provided with threads, and the sizes of the threads between the hard cover shell (901) and the mounting box (7) are identical.
9. The projector according to claim 8, wherein the projector is capable of calibrating a projection position and has good stability, and the projector further comprises: the air passage (14) is arranged on the outer wall of the right side of the mounting box (7), the horizontal center line of the air passage (14) and the horizontal center line of the air hole (902) are overlapped, and the fixing mechanism (9) forms a communicating structure with the micro air pump (12) through the air pipe (11) and the connecting pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010024265.0A CN111193914A (en) | 2020-01-10 | 2020-01-10 | Projector convenient to calibration projection position and good stability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010024265.0A CN111193914A (en) | 2020-01-10 | 2020-01-10 | Projector convenient to calibration projection position and good stability |
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| CN111193914A true CN111193914A (en) | 2020-05-22 |
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| CN202010024265.0A Pending CN111193914A (en) | 2020-01-10 | 2020-01-10 | Projector convenient to calibration projection position and good stability |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112927467A (en) * | 2021-02-04 | 2021-06-08 | 天津同丰信息技术有限公司 | Vehicle-mounted intelligent terminal |
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