CN112130412B - Automatic leveling projector display equipment based on magnetorheological fluid principle - Google Patents
Automatic leveling projector display equipment based on magnetorheological fluid principle Download PDFInfo
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- CN112130412B CN112130412B CN202011035978.3A CN202011035978A CN112130412B CN 112130412 B CN112130412 B CN 112130412B CN 202011035978 A CN202011035978 A CN 202011035978A CN 112130412 B CN112130412 B CN 112130412B
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- equipment
- fixedly connected
- equipment shell
- magnetorheological fluid
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
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- 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
Abstract
The invention relates to the technical field of projector display equipment, in particular to automatic leveling projector display equipment based on a magnetorheological fluid principle, which comprises an equipment shell, wherein a vertical rod is fixedly connected at the center of the top surface inside the equipment shell, a limiting block is fixedly connected on the inner wall of the equipment shell, a balancing weight and an iron core are respectively and fixedly connected on the left side surface of the vertical rod from top to bottom, a sliding rheostat is fixedly connected above the balancing weight inside the equipment shell, a minimum path voltage of the sliding rheostat is greater than the middle value of a circuit voltage, the circuit is broken, the supporting forces supported by the supporting blocks on two sides are the same, so that the supporting blocks support the limiting block, the equipment is kept horizontal, manual back-and-forth adjustment is avoided, automatic adjustment can be well carried out, and the projection effect of the equipment can be well improved, through carrying out moisture absorption treatment to equipment inside, protect equipment internal parts simultaneously, increase the life of equipment.
Description
Technical Field
The invention relates to the technical field of projector display equipment, in particular to automatic leveling projector display equipment based on a magnetorheological fluid principle.
Background
The projector is a device capable of projecting images or videos onto a curtain, can be connected with a computer, a DV and the like through different interfaces to play corresponding video signals, is widely applied to families, offices, schools and entertainment places, and plays a good role in projection in the process of displaying information.
However, in the process of placing the projector, the existing device cannot well ensure the placing level of the projector, and needs to be adjusted manually, so that the projection effect of the device is affected, and in addition, internal parts of the device cannot be well protected, so that the interior of the device is prevented from being wet; accordingly, one skilled in the art provides a self-leveling projector display device based on the magnetorheological fluid principle to solve the problems set forth in the background art.
Disclosure of Invention
In order to solve the technical problems, the invention provides a projector display device capable of automatically leveling based on a magnetorheological fluid principle, which is achieved by the following specific technical means:
a projector display device capable of automatically leveling based on a magnetorheological fluid principle comprises a device shell, wherein a vertical rod is fixedly connected to the center of the top surface inside the device shell, a limiting block is fixedly connected to the inner wall of the device shell, a balancing weight and an iron core are respectively and fixedly connected to the left side surface of the vertical rod from top to bottom, a slide rheostat is fixedly connected to the position, above the balancing weight, inside the device shell, a magnetic coil is sleeved outside the iron core, a fixed shaft is inserted inside the device shell, a lead is fixedly connected inside the fixed shaft, a compression spring is fixedly connected to the position, outside the lead, inside the fixed shaft, a supporting block is fixedly connected to the left end of the compression spring, a positioning shaft is inserted inside the supporting block, and magnetorheological fluid is movably connected to the position, inside the fixed shaft, outside the supporting block, the movable air bag type air bag lifting device is characterized in that a movable plate is hinged to the lower portion inside the equipment shell, an extrusion plate is movably connected to the right side face of the movable plate, a limiting spring is fixedly connected to the right side face of the extrusion plate, a pull rod is fixedly connected to the lower surface of the limiting spring, a crank connecting rod is rotatably connected to the front surface of the movable plate through a shaft, an air bag is fixedly connected to the left side, located on the crank connecting rod, inside the equipment shell, a guide plate is fixedly connected to the upper surface of the pull rod, and a reset spring is fixedly connected to the left side face of the guide plate.
As optimization, the balancing weights are distributed in a bilateral symmetry mode by the central line of the vertical rod, the number of the balancing weights is two, the balancing weights are the same in size, and the balancing weights are the same in structure.
Preferably, the number of the slide rheostats is two, the slide rheostats are the same in size, and the resistance values are the same.
For optimization, the supporting block is quadrilateral in shape, and the magnetorheological fluid is located below the limiting block.
Preferably, the extrusion plates are movably connected with the pull rod, and the extrusion plates are distributed in bilateral symmetry with the vertical center line of the pull rod.
As optimization, the crank connecting rods are distributed in a bilateral symmetry mode by the vertical center line of the pull rod.
Preferably, the lower end of the return spring is fixedly connected with the inner wall of the equipment shell.
The invention has the following beneficial effects:
1. this automatic leveling's projecting apparatus display device based on magnetorheological suspensions principle, upwards promote the supporting shoe through making compression spring, thereby make the supporting shoe upwards promote the stopper when carrying out spacingly to the stopper, thereby make the projecting apparatus on the equipment shell to high one side removal, in-process balancing weight at the removal follows the removal, when the projecting apparatus keeps the level, the power size that the supporting shoe of both sides supported is the same, thereby make the supporting shoe support the stopper, thereby make equipment keep the level, thereby avoided the manual adjustment of making a round trip of personnel, can be fine carry out automatically regulated, thereby the time has been practiced thrift, the projection effect of equipment has been increased that can be fine.
2. This automatic leveling's projecting apparatus show equipment based on magnetorheological suspensions principle extrudees the movable plate through the upper end that makes the stripper plate to make the movable plate take place to rotate, thereby make the crank connecting rod on the movable plate front surface move, thereby make the crank connecting rod extrude left gasbag, thereby carry out pressurization treatment to the gasbag is inside, thereby make the inside drier of gasbag extruded, thereby carry out the moisture absorption treatment to the equipment is inside, avoid equipment to go mildy, protect equipment inside spare part simultaneously, increase the life of equipment.
Drawings
FIG. 1 is a schematic sectional view of the housing of the device of the present invention.
FIG. 2 is a schematic view of the support block structure of the present invention.
Fig. 3 is a schematic view of a slide rheostat of the present invention.
FIG. 4 is a schematic diagram of a guide plate structure according to the present invention.
Fig. 5 is an enlarged view of the area a in fig. 4.
In the figure: 1. an equipment housing; 2. a vertical rod; 3. a limiting block; 4. an iron core; 5. a balancing weight; 6. a slide rheostat; 7. a magnetic coil; 8. a fixed shaft; 9. a wire; 10. a compression spring; 11. a support block; 12. positioning the shaft; 13. magnetorheological fluid; 14. moving the plate; 15. a pressing plate; 16. a pull rod; 17. a limiting spring; 18. a crank connecting rod; 19. an air bag; 20. a guide plate; 21. a return 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 display device capable of automatically leveling based on the magnetorheological fluid principle comprises a device shell 1, wherein a vertical rod 2 is fixedly connected to the center of the top surface inside the device shell 1, a limiting block 3 is fixedly connected to the inner wall of the device shell 1, a balancing weight 5 and an iron core 4 are respectively and fixedly connected to the left side surface of the vertical rod 2 from top to bottom, the balancing weight 5 is distributed in bilateral symmetry with the center line of the vertical rod 2, the balancing weight 5 is two in number, the size and the structure are the same, a sliding rheostat 6 is fixedly connected to the inside of the device shell 1 above the balancing weight 5, the sliding rheostat 6 is two in number, the size and the resistance are the same, a magnetic coil 7 is sleeved outside the iron core 4, and a fixing shaft 8 is inserted into the inside of the device shell 1.
The inside fixedly connected with wire 9 of fixed axle 8, the outside fixedly connected with compression spring 10 that the inside of fixed axle 8 is located wire 9, the left end fixedly connected with supporting shoe 11 of compression spring 10, the appearance of supporting shoe 11 is the quadrangle, magnetorheological suspensions 13 is located the below of stopper 3, the inside grafting of supporting shoe 11 has location axle 12, the outside inside swing joint that is located fixed axle 8 of supporting shoe 11 has magnetorheological suspensions 13, the inside below of equipment shell 1 articulates there is movable plate 14, the right flank swing joint of movable plate 14 has stripper plate 15, stripper plate 15 and pull rod 16 are swing joint, stripper plate 15 is bilateral symmetry with the vertical central line of pull rod 16 and distributes, the right flank fixedly connected with spacing spring 17 of stripper plate 15.
The lower surface of the limiting spring 17 is fixedly connected with a pull rod 16, the front surface of the movable plate 14 is rotatably connected with a crank connecting rod 18 through a shaft, the crank connecting rod 18 is distributed in bilateral symmetry with the vertical central line of the pull rod 16, the supporting block 11 is pushed upwards by the compression spring 10, so that the supporting block 11 limits the limiting block 3 and pushes the limiting block 3 upwards, the projector on the equipment shell 1 moves to one side higher, the balancing weight 5 moves along with the projector in the moving process, when the projector keeps horizontal, the minimum path voltage of the slide rheostat 6 is greater than the middle value of the circuit voltage, the circuit is broken, the supporting forces supported by the supporting blocks 11 at two sides are the same, so that the supporting block 11 supports the limiting block 3, the equipment keeps horizontal, manual back and forth adjustment of personnel is avoided, automatic adjustment can be well carried out, and time is saved, the projection effect of the equipment can be well increased.
The inside of equipment shell 1 is located the left side fixedly connected with gasbag 19 of crank connecting rod 18, the last fixed surface of pull rod 16 is connected with deflector 20, the left surface fixedly connected with reset spring 21 of deflector 20, the lower extreme of reset spring 21 is fixed connection with the inner wall of equipment shell 1, through making the upper end extrusion movable plate 14 of stripper plate 15, thereby make movable plate 14 take place the rotation, thereby make crank connecting rod 18 on the movable plate 14 front surface move, thereby make crank connecting rod 18 extrude left gasbag 19, thereby pressurize the inside processing of gasbag 19, thereby make the inside drier of gasbag 19 extruded, thereby carry out moisture absorption to the inside processing of equipment, avoid equipment to go mildy, protect the inside spare part of equipment simultaneously, increase the life of equipment.
Magnetorheological fluid belongs to controllable fluid and is an active research in intelligent materials. The magnetorheological fluid is a suspension formed by mixing tiny soft magnetic particles with high magnetic conductivity and low magnetic hysteresis and non-magnetic conductive liquid. The suspension exhibits low viscosity newtonian fluid behavior under zero magnetic field conditions.
When the magnetic rheological fluid device is used, the projector is placed on the upper surface of the equipment shell 1, an external power supply is connected, when the projector is placed horizontally, the resistance values of the sliding rheostats 6 on the two sides are the same, the force supported by the supporting blocks 11 on the two sides in the equipment is the same, when the projector deviates leftwards, the left side of the equipment shell 1 is lower than the right side, so that the counterweight block 5 slides towards the left side, the counterweight block 5 drives the sliding rheostat 6 to move, the resistance value of the sliding rheostat 6 is changed, the resistance value in a circuit is increased, the current in the circuit is decreased, the iron core 4 is magnetized through an electromagnetic principle, the iron core 4 attracts the guide plate 20 upwards, the magnetic rheological fluid 13 is changed, the restoring force of the compression spring 10 in the magnetic rheological fluid 13 is larger than the resistance, and the compression spring 10 pushes the supporting blocks 11 upwards, therefore, the support block 11 limits the limit block 3 and pushes the limit block 3 upwards at the same time, so that the projector on the equipment shell 1 moves to one side which is high, the balancing weight 5 moves along with the movement in the moving process, the projector also slowly restores to the horizontal position in the process, the resistance value of the sliding rheostat 6 is reduced, the current is increased, the magnetism is increased, so that the magnetorheological fluid 13 is slowly converted into a solid from liquid, when the projector restores to the horizontal position, the magnetorheological fluid 13 is also changed into a solid, so that the support block 11 supports the limit block 3, the force supported by the support blocks 11 at two sides is the same, so that the equipment is kept horizontal, manual back-and-forth adjustment of personnel is avoided, the automatic adjustment can be well carried out, the time is saved, the projection effect of the equipment can be well increased, when the iron core 4 attracts the guide plate 20 to move upwards, the guide plate 20 pulls the pull rod 16 upwards, meanwhile, the return spring 21 is pulled, so that the extrusion plate 15 on the lower surface of the pull rod 16 moves upwards, the upper end of the extrusion plate 15 extrudes the moving plate 14, the moving plate 14 rotates, the crank connecting rod 18 on the front surface of the moving plate 14 moves, the crank connecting rod 18 extrudes the left air bag 19, the inside of the air bag 19 is pressurized, the drying agent inside the air bag 19 is extruded, the moisture absorption treatment is performed on the inside of the equipment, the mildew of the equipment is avoided, the internal parts of the equipment are protected, and the service life of the equipment is prolonged.
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 (7)
1. The utility model provides a projector display device of automatic leveling based on magnetorheological suspensions principle, includes equipment shell (1), its characterized in that: the device comprises an equipment shell (1), wherein a vertical rod (2) is fixedly connected to the center of the top surface in the equipment shell (1), a limiting block (3) is fixedly connected to the inner wall of the equipment shell (1), a balancing weight (5) and an iron core (4) are fixedly connected to the left side surface of the vertical rod (2) from top to bottom respectively, a sliding rheostat (6) is fixedly connected to the position, above the balancing weight (5), in the equipment shell (1), a magnetic coil (7) is sleeved outside the iron core (4), a fixed shaft (8) is inserted into the equipment shell (1), a lead (9) is fixedly connected to the inside of the fixed shaft (8), a compression spring (10) is fixedly connected to the outer side of the lead (9) in the inside of the fixed shaft (8), a supporting block (11) is fixedly connected to the left end of the compression spring (10), and a positioning shaft (12) is inserted into the inside of the supporting block (11), the magnetorheological fluid (13) is movably connected to the outside of the supporting block (11) and located inside the fixed shaft (8), a movable plate (14) is hinged to the lower portion of the inside of the equipment shell (1), a squeezing plate (15) is movably connected to the right side face of the movable plate (14), a limiting spring (17) is fixedly connected to the right side face of the squeezing plate (15), a pull rod (16) is fixedly connected to the lower surface of the limiting spring (17), a crank connecting rod (18) is rotatably connected to the front surface of the movable plate (14) through a shaft, an air bag (19) is fixedly connected to the left side of the crank connecting rod (18) and located inside the equipment shell (1), a guide plate (20) is fixedly connected to the upper surface of the pull rod (16), and a reset spring (21) is fixedly connected to the left side face of the guide plate (20);
when the magnetic current variable magnetic field projector is used, the projector is placed on the upper surface of the equipment shell (1), an external power supply is connected, when the projector is placed horizontally, the resistance values of the sliding rheostats (6) on the two sides are the same, the force supported by the supporting blocks (11) on the two sides in the equipment are the same, when the projector deviates leftwards, the left side of the equipment shell (1) is lower than the right side, so that the counterweight block (5) slides to the left side, the counterweight block (5) drives the sliding rheostat (6) to move, the resistance value of the sliding rheostat (6) is changed, the resistance value in a circuit is increased, the current in the circuit is decreased, the iron core (4) is magnetized through an electromagnetic generating principle, the iron core (4) attracts the guide plate (20) upwards, the magnetic current variable magnetic field fluid (13) is changed, and the restoring force of the compression spring (10) in the magnetic current variable magnetic current (13) is larger than the resistance, thereby make compression spring (10) upwards promote supporting shoe (11), thereby make supporting shoe (11) upwards promote stopper (3) when carrying on spacingly to stopper (3), thereby make the projecting apparatus on equipment shell (1) move to one side of height, in the in-process balancing weight (5) of removal follow move, the projecting apparatus also slowly resumes horizontal position at this in-process, slide rheostat (6) resistance diminishes, the electric current grow, magnetism becomes strong, thereby make magnetorheological suspensions (13) slowly change into the solid from liquid, when the projecting apparatus resumes the level, magnetorheological suspensions (13) also become the solid, thereby make supporting shoe (11) support stopper (3), the power size that supporting shoe (11) of both sides supported is the same, thereby make equipment keep the level, thereby avoided personnel's manual round trip adjustment, can fine automatic adjustment, thereby saving time, greatly improving the projection effect of the device, when the iron core (4) attracts the guide plate (20) to move upwards, the guide plate (20) pulls the pull rod (16) upwards and pulls the return spring (21) at the same time, thereby moving the pressing plate (15) on the lower surface of the pull rod (16) upward, so that the upper end of the pressing plate (15) presses the moving plate (14), thereby rotating the moving plate (14) and moving the crank link (18) on the front surface of the moving plate (14), thereby the crank connecting rod (18) presses the left air bag (19) to pressurize the interior of the air bag (19), therefore, the drying agent in the air bag (19) is extruded out, the interior of the equipment is subjected to moisture absorption treatment, the equipment is prevented from mildewing, meanwhile, the internal parts of the equipment are protected, and the service life of the equipment is prolonged.
2. The magnetorheological fluid based self-leveling projector display apparatus according to claim 1, wherein: the balancing weights (5) are distributed in a bilateral symmetry mode by using the center line of the vertical rod (2), the number of the balancing weights (5) is two, the balancing weights are the same in size, and the structure is the same.
3. The magnetorheological fluid based self-leveling projector display apparatus according to claim 1, wherein: the number of the slide rheostats (6) is two, the slide rheostats are the same in size, and the resistance values are the same.
4. The magnetorheological fluid based self-leveling projector display apparatus according to claim 1, wherein: the supporting block (11) is quadrilateral in shape, and the magnetorheological fluid (13) is located below the limiting block (3).
5. The magnetorheological fluid based self-leveling projector display apparatus according to claim 1, wherein: the extrusion plate (15) is movably connected with the pull rod (16), and the extrusion plate (15) is distributed in bilateral symmetry with the vertical center line of the pull rod (16).
6. The magnetorheological fluid based self-leveling projector display apparatus according to claim 1, wherein: the crank connecting rods (18) are distributed in a left-right symmetrical mode by the vertical center line of the pull rod (16).
7. The magnetorheological fluid based self-leveling projector display apparatus according to claim 1, wherein: the lower end of the reset spring (21) is fixedly connected with the inner wall of the equipment shell (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011035978.3A CN112130412B (en) | 2020-09-27 | 2020-09-27 | Automatic leveling projector display equipment based on magnetorheological fluid principle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011035978.3A CN112130412B (en) | 2020-09-27 | 2020-09-27 | Automatic leveling projector display equipment based on magnetorheological fluid principle |
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| CN112130412A CN112130412A (en) | 2020-12-25 |
| CN112130412B true CN112130412B (en) | 2021-10-08 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113219774A (en) * | 2021-05-18 | 2021-08-06 | 刘千 | Projector equipment for improving definition by utilizing electromagnetic rotating wheel |
| CN113531353B (en) * | 2021-07-14 | 2022-11-25 | 广东鸿图勘察设计有限公司 | Surveying instrument for geological detection suitable for different terrains |
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| EP2607782A1 (en) * | 2011-12-21 | 2013-06-26 | ARTEMIDE S.p.A. | Jointed lamp |
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| CN110822008A (en) * | 2019-11-21 | 2020-02-21 | 山东大学 | Driver based on magnetorheological fluid |
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|---|---|---|---|---|
| CN101614314A (en) * | 2008-06-27 | 2009-12-30 | 海尔集团公司 | The controllable support leg assembly that is used for household electric appliance |
| EP2607782A1 (en) * | 2011-12-21 | 2013-06-26 | ARTEMIDE S.p.A. | Jointed lamp |
| CN104723294A (en) * | 2013-12-24 | 2015-06-24 | 天津市七星精密机械有限公司 | Electromagnetism adjustable workbench |
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Effective date of registration: 20210917 Address after: 518057 phase II, cypress gene therapy Park, No. 19, Gaoxin Zhongyi Road, Maling community, Yuehai street, Nanshan District, Shenzhen, Guangdong, 1c706 Applicant after: Shenzhen Shenkun Technology Co.,Ltd. Address before: Room 2709, No. 119, Shipai West Road, Tianhe District, Guangzhou City, Guangdong Province Applicant before: Guangzhou Qinghui e-commerce Co.,Ltd. |
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Application publication date: 20201225 Assignee: Shenzhen Magic Cube Vision Technology Co.,Ltd. Assignor: Shenzhen Shenkun Technology Co.,Ltd. Contract record no.: X2022440020018 Denomination of invention: An Automatic Leveling Projector Display Device Based on the Principle of Magnetorheological Fluid Granted publication date: 20211008 License type: Common License Record date: 20221026 |
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Application publication date: 20201225 Assignee: Shenzhen Pumeng Technology Co.,Ltd. Assignor: Shenzhen Shenkun Technology Co.,Ltd. Contract record no.: X2022440020020 Denomination of invention: An Automatic Leveling Projector Display Device Based on the Principle of Magnetorheological Fluid Granted publication date: 20211008 License type: Common License Record date: 20221031 |