WO2024060848A1 - Projector - Google Patents

Projector Download PDF

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Publication number
WO2024060848A1
WO2024060848A1 PCT/CN2023/110629 CN2023110629W WO2024060848A1 WO 2024060848 A1 WO2024060848 A1 WO 2024060848A1 CN 2023110629 W CN2023110629 W CN 2023110629W WO 2024060848 A1 WO2024060848 A1 WO 2024060848A1
Authority
WO
WIPO (PCT)
Prior art keywords
telescopic rod
base
projector
host
rod
Prior art date
Application number
PCT/CN2023/110629
Other languages
French (fr)
Chinese (zh)
Inventor
庄荣华
张恒菲
Original Assignee
深圳市菲常华品科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市菲常华品科技有限公司 filed Critical 深圳市菲常华品科技有限公司
Publication of WO2024060848A1 publication Critical patent/WO2024060848A1/en

Links

Classifications

    • 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
    • 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
    • F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
    • 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
    • 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
    • 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
    • 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
    • F16M13/04—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or holding steady relative to, a person, e.g. by chains, e.g. rifle butt or pistol grip supports, supports attached to the chest or head
    • 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
    • G03B21/14—Details
    • 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

Definitions

  • the utility model relates to the technical field of projection equipment, in particular to a projector.
  • a projector is a device that projects images or videos onto a screen or wall.
  • the basic principle of a projector is to first illuminate the image display element with light to produce an image, and then project it through the lens.
  • the height of the projector needs to be adjusted so that the image is fully displayed on the screen/wall for better viewing.
  • Most of the methods for adjusting the height of projectors on the market use external brackets to raise or lower the height of the projector, or the projector is installed under a ceiling mount and the ceiling mount is used to adjust the height of the projector. It can be seen that common projectors place/install the height adjustment mechanism outside the projector. Therefore, it is necessary to purchase and install additional structural parts such as the height adjustment bracket/hanger of the projector to meet the height adjustment needs, which is not very convenient to use. ,Room for improvement.
  • the utility model provides a projector.
  • the solution of the utility model to solve the technical problem is to provide a projector, which includes a host, a telescopic rod and a base.
  • One end of the telescopic rod extends into the host and is connected to the host, and the other end of the telescopic rod extends into The inside of the base is connected to the base.
  • the base supports/lifts the main machine through the telescopic rod.
  • the main machine can approach or move away from the base through the telescopic rod.
  • the two ends of the telescopic rod are respectively stored in the main machine and the base.
  • the main machine includes a shell, an inner cavity is provided in the outer shell, and a built-in connecting component is provided in the inner cavity.
  • One end of the telescopic rod penetrates into the inner cavity and is connected to the built-in connecting component.
  • the telescopic rod The rod is hingedly connected to the housing through the built-in connection assembly.
  • the housing includes a connected cover body and a cover plate, and the cover plate There is an escape hole on the top, and the built-in connection component includes a special-shaped frame.
  • the special-shaped frame includes a connected middle section and an extension arm. The angle between the middle section and the extension arm is a right angle or an obtuse angle.
  • the telescopic rod extends into the inner cavity from the escape hole and is movably connected with the middle section.
  • the extension arm is hinged with the cover plate, and its hinged rotation axis is the relative rotation center line of the telescopic rod and the main machine.
  • the inner cavity is also provided with a pressure block and a damping shaft. Both ends of the damping shaft are movable ends.
  • the pressure block is provided on the cover plate. The extension arm and the pressure block are respectively Connected to a movable end of the damping shaft.
  • a covering tube is also provided on the cover plate, and one end of the telescopic rod passes through the cover plate and the covering tube in sequence and is connected to the middle section.
  • the covering tube is hollow, and the covering tube is hollow.
  • the hollow area of the barrel gradually increases in the direction away from the cover plate.
  • one of the main machine or the base is provided with a handle slot, and the other is provided with a depression groove;
  • the handle slot is provided on the outer wall of the main machine or the base, and the The pressing groove is provided on a side of the main frame close to the base or a side of the base close to the main frame.
  • a light source generator is also provided in the host machine, a lens is provided on the light source generator, and a focusing gear is provided on the lens. By rotating the focusing gear, the lens is driven to rotate, thereby achieving adjustment.
  • the position of the lens inside the lens; the main body is also provided with a focusing structure, the focusing structure includes a connected adjusting rod and a pinion, one end of the adjusting rod is connected to the pinion, and the pinion is connected to the pinion.
  • the focusing gear meshes, and the number of teeth of the pinion gear is smaller than the number of teeth of the focusing gear.
  • a driving member is also provided in the main machine, and the output shaft of the driving member is transmission connected with the focusing gear.
  • a rotary handle is provided at one end of the adjustment rod away from the pinion gear.
  • a handle groove is provided on the main machine, a through hole is provided on the inner wall of the handle groove, and one end of the adjustment rod away from the pinion is exposed through the through hole.
  • an inner cylinder is provided on the base, and an end ring is provided at one end of the telescopic rod away from the main machine.
  • the telescopic rod is fixedly connected to the bottom surface of the inner cylinder through the end ring.
  • the telescopic rod is hollow, and the main machine and the base Electrical connection is achieved through wires, which are passed through the hollow telescopic rod.
  • wires There is a threading hole in the middle of the bottom surface of the inner cylinder. The wires pass through the end ring through the threading hole and enter the telescopic rod. .
  • a bracket is also provided in the main machine.
  • the bracket includes a supporting part and a fixed part that are connected and fixed vertically.
  • the supporting part is sequentially provided with a coaxial first semicircular groove, a second semicircular groove and a supporting tube.
  • the adjusting rod is placed in the first semicircular groove and the second semicircular groove respectively, and the inner end of the adjusting rod penetrates the support tube, and the pinion gear is disposed on the support tube toward the second semicircular groove.
  • One side of the semicircular groove, and the end surface of the pinion gear presses against the side surface of the second semicircular groove.
  • two clamping holes are provided on both sides of the first semicircular groove
  • a pressure plate is provided on the clamping hole
  • clamping tongues are respectively provided on both sides of the pressure plate, and the clamping tongues are respectively inserted into the clamping holes to form a clamping fixation.
  • a speaker and a counterweight are provided in the base at intervals, and the speaker is electrically connected to the host through a wire in the telescopic rod.
  • a counterweight block is arranged at intervals in the base, and the counterweight block is arranged at intervals from the speaker.
  • the beneficial effects of this utility model are: by splitting the projector into a host and a base, and then using a telescopic rod to connect the host and the base, the user can directly adjust the height of the host when using the projector. There is no need for additional structural components such as height adjustment brackets/hangers to meet the needs of adjusting the projection height. The cost of use is reduced, the convenience of use is improved, and the needs of users are met.
  • the utility model provides a projector, which has the following advantages:
  • the projector provided by the embodiment of the utility model includes a mainframe, a telescopic rod and a base, one end of the telescopic rod extends into the mainframe and is connected to the mainframe, the other end of the telescopic rod extends into the base and is connected to the base, the base supports/lifts the mainframe through the telescopic rod, the mainframe can be moved closer to or away from the base by extending and retracting the telescopic rod, and when the telescopic rod is in a retracted state, the telescopic rod is stored in the mainframe and the base.
  • the projector and the telescopic rod are integrated, and there is no need to prepare an additional support rod for the projector; in addition, by setting the support rod as a telescopic rod and letting the telescopic rod be in a retracted state, the projector can be integrated with the telescopic rod.
  • the telescopic rod is stored in the main unit and the base, so that the projector can be folded up when not in use, which is more beautiful, reduces the occupied space, and is also convenient for transportation.
  • the host of the embodiment of the present invention includes a shell, an inner cavity is provided in the outer shell, and a built-in connecting component is provided in the inner cavity.
  • One end of the telescopic rod penetrates into the inner cavity and is connected to the built-in connecting component.
  • the telescopic rod is hingedly connected to the housing through the built-in connection component. It is understandable that one end of the telescopic rod penetrates into the host and is hinged with the casing, thereby realizing the angle adjustment function of the projector, making the projector more adjustable and applicable, and conducive to improving the user experience.
  • the built-in connection component of the embodiment of the present invention also includes a pressure block, the pressure block is provided on the cover plate, the extension arm is hinged with the pressure block, and the hinge joint between the extension arm and the pressure block Equipped with damping shaft. It can be understood that the hinged joint between the pressure block and the extension arm is provided with a damping shaft. The damping force provided by the damping shaft allows the host to maintain the angle unchanged after adjusting the angle, which is beneficial to improving the working stability of the projector.
  • the cover plate is also provided with a covering tube.
  • One end of the telescopic rod passes through the cover plate and the covering tube in sequence and is connected to the middle section.
  • the covering tube is hollow.
  • the hollow area of the covering tube gradually increases in the direction away from the cover plate. It can be understood that the covering tube is used to limit the range of movement of the telescopic rod, thereby limiting the rotation range of the special-shaped frame and avoiding interference with other structures in the host due to excessive rotation.
  • the embodiment of the present invention adopts a focusing structure and a focusing gear to adjust the focal length of the lens, resulting in higher sensitivity.
  • a handle groove is provided on the main machine, and a through hole is provided on the inner wall of the handle groove.
  • the end of the adjustment rod away from the pinion is exposed through the through hole. It is understandable that the adjustment rod comes out from the through hole on the inner wall of the handle groove, and the clever structure helps to hide the internal structure of the projector and improve the overall aesthetics.
  • an inner cylinder is also provided on the base.
  • the end of the telescopic rod away from the main machine is provided with an end ring.
  • the telescopic rod is fixedly connected to the bottom surface of the inner cylinder through the end ring. It can be understood that by introducing the end ring, the connection stability between the telescopic rod and the inner cylinder can be improved and assembly can be facilitated.
  • the telescopic rod is provided in a hollow position, and the main unit and the base are electrically connected through wires, and the wires are passed through the hollow telescopic rod.
  • a threading hole is provided in the middle of the bottom surface of the inner cylinder, and the wire passes through the end ring through the threading hole and enters the telescopic rod. It is understandable that the wires are routed through the telescopic rod, which is beneficial to enhancing the aesthetics of the projector.
  • Figure 1 is a perspective view of the projector of the present utility model (the telescopic rod is in a certain extended state).
  • Figure 2 is a cross-sectional view of the projector of the present utility model (the telescopic rod is fully retracted).
  • Figure 3 is an exploded view of the telescopic rod and base of the projector of the present invention (base cutaway).
  • Figure 4 is an exploded view of the base of the projector of the present invention (bottom perspective).
  • Figure 5 is an internal perspective view of the assembly of the main unit and the telescopic rod of the present utility model.
  • Figure 6 is an exploded view of the main unit and telescopic rod of the present utility model.
  • Figure 7 is a perspective view of the bottom of the assembly of the main unit and the telescopic rod of the utility model (the main unit is rotated at an angle relative to the telescopic rod).
  • Figure 8 is a perspective view of the internal structure of the main body of the projector of the present utility model.
  • Figure 9 is an exploded view of the internal structure of the host of the projector of the present invention.
  • Figure 10 is a perspective view from the back of the main unit of the projector of the present invention.
  • Figure 11 is an exploded view of part of the main structure of the projector of the present invention.
  • Base 21. Pressure groove; 22. Inner barrel; 221. Perforation; 222. Wiring hole; 23. Speaker; 24. Counterweight; 25. Internal thread barrel; 3. Telescopic rod; 31. End ring; 311. Screw hole; 312. Side threaded hole; 4. Built-in connection components; 41. Special-shaped frame; 411. Middle section; 4111. Insert rod; 4112, wire trough; 4113, crimping screw; 412, extension arm; 4121, inner hole; 42, damping shaft; 43, pressure block; 431, fixing hole.
  • the terms “mounted,” “set,” “provided,” “connected,” and “connected” are to be construed broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or between two devices, components or components. internal connectivity.
  • the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
  • the embodiment of the present utility model is a projector with a built-in lifting function, the specific structure of which is shown in Figure 1-10.
  • the projector includes a host 1, a base 2 and an extension Shrink rod 3.
  • the upper end of the telescopic rod 3 is inserted into the host machine 1 and connected with the main machine 1, and the lower end of the telescopic rod 3 is inserted into the base 2 and connected with the base 2.
  • the telescopic direction (AB direction) of the telescopic rod 3 is the height adjustment direction of the main machine 1 relative to the base 2 .
  • the base 2 supports/lifts the host 1 through the telescopic rod 3, that is, the telescopic rod 3 can play the role of supporting the host 1 or lifting the host 1, and the user can adjust the usage method as needed.
  • the projector in the embodiment of the present invention is divided into a host 1 and a base 2, and a telescopic rod 3 is used to connect the host 1 and the base 2.
  • the user can directly pull the host 1 and the base 2 apart to adjust.
  • the height of the host 1 without the need for additional structural components such as height adjustment brackets/hangers to meet the needs of adjusting the projection height.
  • the top of the main unit 1 is provided with a horizontally concave handle groove 114
  • the surface of the base 2 facing the main unit 1 is provided with a concave depression groove 21 .
  • the telescopic rod 3 when the telescopic rod 3 is in a certain extended state, there is a gap between the projector main body 1 and the base 2 . It can be understood that the actual interval is determined by the telescopic state of the telescopic rod 3 and is not limited here.
  • the telescopic rod 3 When the telescopic rod 3 is in a contracted state, the projector main body 1 and the base 2 are in close contact with each other, and the telescopic rod 3 is wrapped in the projector main body 1 and the base 2 . Specifically, when the telescopic rod 3 is in a fully retracted state, one section of the telescopic rod 3 is wrapped in the projector main body 1 and the other section is wrapped in the base 2 . As a result, the telescopic rod 3 is not exposed in the retracted state, which improves the integrity of the projector and improves the modeling effect. There is no obstruction by the exposed telescopic rod 3 during transportation, thus improving the transport portability of the projector.
  • the host 1 includes a shell 11, and the shell 11 includes a connected cover body 111 and a cover plate 112.
  • the cover body 111 and the cover plate 112 form an inner cavity 113, and the telescopic rod 3 passes through the cover plate 112 and enters the interior. Cavity 113.
  • the handle slot 114 is provided on the cover body 111 and/or the cover plate 112 , depending on the structure and connection relationship between the cover body 111 and the cover plate 112 .
  • the cover 112 is provided below the cover 111 , then the handle slot 114 can be provided on the cover 112 or the cover 111 .
  • the cover 112 can also be disposed above the cover 111 , and then the handle slot 114 is disposed on the cover 111 .
  • a section of the telescopic rod 3 is inserted into the base 2 and forms a fixed connection.
  • the end of a section of the telescopic rod 3 is fixedly connected to an end ring 31, and an inner cylinder 22 is provided in the base 2.
  • the telescopic rod 3 is inserted into the inner cylinder 22 and is fixedly connected to the bottom surface of the inner cylinder 22 through the end ring 31.
  • the end ring 31 is inserted into the port of the telescopic rod 3 and screwed into the side threaded hole 312 of the end ring 31 through screws penetrating from the side wall of the telescopic rod 3 to form a fixed connection.
  • the end ring 31 is also provided with two screw holes 311, and the bottom surface of the inner cylinder 22 is provided with a through hole 221 corresponding to the screw hole 311.
  • the end ring 31 and the bottom surface of the inner cylinder 22 are screwed into the end ring 31 through screws that penetrate through the through holes 221.
  • a fixed connection is formed in the screw hole 311.
  • a threading hole 222 is provided in the middle of the bottom surface of the inner cylinder 22.
  • the threading hole 222 is used for a wire (not shown) to pass through.
  • the wire passes through the threading hole 222 and then passes through the end ring 31 and enters the telescopic rod 3.
  • the telescopic rod 3 The wire inside is spiral.
  • the wires are mainly used for electrical connection between the host 1 and the base 2.
  • the base 2 can be used simply as a support, or some electronic components can be installed inside the base 2, such as a wireless charging transmitter inside the base 2, so that the projector has a wireless charging function.
  • a speaker 23 may be added inside the base 2 so that the speaker 23 is separated from the host 1 by a certain distance to reduce the impact of the vibration of the speaker 23 on the projected image.
  • the base 2 can also be equipped with infrared sensors, batteries, display screens, LED lamp beads, buttons and other conventional electronic components to implement corresponding conventional functions.
  • the display screen can display time, weather and other information, and the buttons can be used for It controls the lens switch, focus adjustment, etc. of the host 1, and the infrared sensor is used to sense the distance of the projection screen, etc.
  • two speakers 23 are also provided in the base 2.
  • the speakers 23 communicate with the main circuit board 12 ( Figure 2) inside the host 1 ( Figure 2) through a telescopic rod. 3 wires passed through to achieve electrical connection.
  • the technology of the main circuit board 12 outputting audio to the speaker 23 for playing is a conventional technology, and its specific principles will not be described again here.
  • the sound when the projector plays the picture can be played from the speaker 23.
  • the telescopic rod 3 is in the extended state, the speaker 23 is separated from the host 1 by a certain distance, which can reduce the impact of sound vibration on the picture to a certain extent.
  • a counterweight block 24 is also provided in the base 2 , and the counterweight block 24 is located on the opposite side of the speaker 23 .
  • Counterweight 24 is used to increase overall stability.
  • an internal thread barrel 25 is fixedly provided at the middle position of the bottom surface of the base 2, and the internal thread barrel 25 is used to screw into the external Fixing screws provided with the external support structure (such as projector external bracket, projector hanger, etc.).
  • the bottom surface of the base 2 is usually formed by injection molding, and the embedded internal thread barrel 25 is a hardware component.
  • FIG. 1 There is a built-in connecting component 4 in the inner cavity 113.
  • a telescopic rod 3 that penetrates from the cover 112 forms a hinge connection with the cover 112 through the built-in connecting component 4.
  • the hinge connection is The axis is the center line around which the projector rotates relative to the telescopic rod 3 when adjusting the angle of the projector.
  • the built-in connection component 4 includes a special-shaped frame 41.
  • the special-shaped frame 41 includes a middle section 411 and extension arms 412 respectively provided at both ends, and the two extension arms 412 extend in the same direction.
  • the extension arm 412 may be provided only on one side of the middle section 411 of the special-shaped frame 41 .
  • the upper section of the telescopic rod 3 is inserted into the main body 1 and forms a hinge.
  • one end of the telescopic rod 3 inserted into the main machine 1 forms a movable connection with the middle section 411 of the special-shaped frame 41 .
  • the extension arm 412 is vertically connected to the middle section 411 of the special-shaped frame 41.
  • the extension arm 412 and the middle section 411 of the special-shaped frame 41 can be integrally formed, that is, the special-shaped frame 41 is integrally formed. become.
  • the telescopic rod 3 is fixedly connected to the middle section 411 of the special-shaped frame 41 and the length direction of the extension arm 412 is parallel to the length direction of the telescopic rod 3 .
  • the extension arm 412 extends to the cover plate 112 of the main machine 1 through which the telescopic rod 3 penetrates.
  • the extension arm 412 is hinged with the cover plate 112 , and its hinge rotation axis is the relative rotation center line of the telescopic rod 3 and the main machine 1 . It can be understood that in other embodiments, the extension arm 412 and the middle section 411 do not have to be connected vertically. For example, it is also a feasible solution for the extension arm 412 and the middle section 411 to form an obtuse angle.
  • the end of the telescopic rod 3 is fixedly connected to the middle section 411 of the special-shaped frame 41, and the extension arm 412 extends from the middle section 411 of the special-shaped frame 41 to the other side of the telescopic rod 3 End extension.
  • the middle section 411 of the special-shaped frame 41 is provided with a plug-in rod 4111.
  • the plug-in rod 4111 extends in the same direction as the extension arm 412.
  • the plug-in rod 4111 is inserted into one end of the telescopic rod 3 to form a movable connection or a fixed connection.
  • the insertion rod 4111 and the telescopic rod 3 are connected through an axis hole that can slide along the length direction of the telescopic rod 3; or the fixed connection between the insertion rod 4111 and the end of the telescopic rod 3 adopts snap connection, riveting connection, or screw connection.
  • one or more than one combination of tight-fitting connections for example, it can be a combination of snap-fitting and riveting connections, a combination of tight-fitting connections and riveting connections, etc.
  • Riveting connection refers to Pressure is applied to the outer wall of the telescopic rod 3 to cause small deformation, and the small deformation is pressed into the insertion rod 4111 to form a compression fixation.
  • the telescopic rod 3 is hollow for the spiral conductor to pass through
  • the insertion rod 4111 is hollow for the conductor to pass through.
  • the spiral conductor and the conductor are actually the same line.
  • a wire trough 4112 and a crimping screw 4113 are provided on the upper part of the middle section 411 of the special-shaped frame 41. The wire passing through the insertion rod 4111 passes through the wire trough 4112 and is pressed and fixed with the crimping screw 4113, thus preventing the wire from passing out. The wire comes into contact with the lens 131 above the special-shaped frame 41 .
  • the extension arm 412 is provided with a damping shaft 42 and a pressure block 43 at a hinged joint with the cover 112 of the main body 1 .
  • the pressing block 43 is fixed on the two threaded barrels 1121 of the cover plate 112 through two screws (not shown).
  • the damping shaft 42 adopts a linear damping shaft with two movable ends in the shape of hexagonal nuts. The two movable ends of the damping shaft 42 are respectively inserted into the inner hole 4121 of the extension arm 412 and the fixed hole 431 of the pressure block 43 to form a fixed connection.
  • the damping shaft 42 can be purchased externally. In some embodiments, as shown in FIG.
  • the two ends of the middle section 411 of the special-shaped frame 41 are respectively provided with extension arms 412 , so there are two damping shafts 42 and two pressure blocks 43 that are symmetrically arranged.
  • the extension arms 412 on both sides are hinged to the cover 112 respectively, which improves the stability of the connection and makes the overall structure more stable when adjusting the pitch angle.
  • the cover plate 112 is also provided with a covering tube 16 , and the telescopic rod 3 passes through the covering tube 16 .
  • the function of the covering tube 16 is to cover the internal structures on both sides of the telescopic rod 3 .
  • the covering tube 16 is separated between the extension arm 412 and the telescopic rod 3, and the bottom of the covering tube 16 is fixed on the cover plate 112 through four screws (not shown), and the escape holes between the covering tube 16 and the cover plate 112 1123 corresponds to connectivity.
  • the shape and size of the cavity in the covering tube 16 needs to take into account the range of movement of the telescopic rod 3 during implementation, and avoid blocking the movement of the telescopic rod 3 .
  • one end of the telescopic rod 3 passes through the cover plate 112 and the rear cover 16 of the cover tube and is connected to the middle section 411 in sequence.
  • the cover tube 16 is hollow, and the hollow area of the cover tube 16 gradually increases in the direction away from the cover plate 112 .
  • the movable range of the telescopic rod 3 is limited by the covering tube 16, thereby limiting the rotation range of the special-shaped frame 41 and preventing the telescopic rod 3 from interfering with other structures in the host 1 due to excessive rotation.
  • the hinge position is close to the cover 112 through the special-shaped frame 41, that is, the rotation center is close to the cover 112, so the pitch angle of the host 1 is adjusted.
  • the range of movement at the cover 112 will be relatively smaller.
  • the cover 112 only needs to open a smaller escape hole 1123 to meet the demand for the range of movement of the telescopic rod 3, that is, the wall
  • the smaller escape hole 1123 of the body 1122 can also meet the pitch angle adjustment range of the host 1 and avoid weakening the strength of the wall 1122 caused by an excessively large opening.
  • the telescopic rod 3 has relatively rotated an angle. When the telescopic rod 3 comes into contact with the escape hole 1123, the telescopic rod 3 rotates to the maximum angle, that is, it reaches the maximum adjustable pitch angle.
  • the host 1 is provided with a light source generator 13 (ie, the optical engine of the projector) and a focusing structure 14.
  • the light source generator 13 has a lens 131 facing forward and a focusing gear 1311 on the periphery of the lens 131 .
  • the focusing structure 14 includes an adjustment rod 141 and a pinion 142 .
  • the pinion gear 142 is meshed with the focus gear 1311 of the projector lens 131 .
  • the adjusting rod 141 can be made of metal, such as iron.
  • the inner end of the adjusting rod 141 is inserted into the pinion gear 142 and used to drive the pinion gear 142 to rotate around the axis of the adjusting rod 141 .
  • the inner end of the adjusting rod 141 is knurled.
  • the adjusting rod 141 can directly drive the pinion gear 142 to rotate.
  • the outer end of the adjusting rod 141 is used as a manual adjustment end and goes out of the housing 11 of the host 1. That is, the adjusting rod 141 is partially fixed in the housing 11, while the pinion 142 (Fig. 9) It is located in the casing 11, so only the adjusting rod 141 penetrates through the casing 11.
  • the size of the adjusting rod 141 is relatively small, so the area that needs to be sealed between the adjusting rod 141 and the casing 11 is relatively small. It is easy to improve the sealing design to improve product quality. .
  • the diameter of the small gear 142 is less than one-third of the diameter of the general projector focusing gear. Therefore, compared with the structure of directly moving the focusing gear 1311 with fingers, the focusing structure 14 is relatively more labor-saving when focusing and requires more circles of rotation, making it easier for the operator to control the focusing speed and accuracy, thereby improving the ease of use.
  • the host 1 is also provided with a bracket 15.
  • the bracket 15 can be made of hard plastic, aluminum or steel.
  • the bracket 15 is fixed on the light source generator 13 , and the adjusting rod 141 and the pinion 142 are both fixed on the bracket 15 .
  • the bracket 15 includes an integral
  • the supporting part 151 and the fixing part 152 are vertically fixedly connected to each other.
  • the supporting part 151 is attached to the projector light source generator 13, and the fixing part 152 is in front of the projector light source generator 13.
  • a fixed connection is formed by screws, and the adjusting rod 141 and the pinion gear 142 are both fixed on the supporting part 151 .
  • a square hole 1521 is provided in the middle of the fixing part 152, and the square hole 1521 allows the lens 131 of the projector to pass through.
  • the support portion 151 in the length direction of the adjustment rod 141, is provided with a support tube 153 at one end and a first semicircular groove 1511 at the other end. Between the first semicircular groove 1511 and the support tube 153 There is also a second semicircular groove 1512 therebetween, and the first semicircular groove 1511, the support tube 153, and the second semicircular groove 1512 are coaxial.
  • the adjusting rod 141 is placed in the first semicircular groove 1511 and the second semicircular groove 1512 respectively, and the inner end of the adjusting rod 141 penetrates the support tube 153.
  • the pinion gear 142 is provided on the side of the support tube 153 facing the second semicircular groove 1512.
  • the first semicircular groove 1511, the second semicircular groove 1512 and the support tube 153 play a supporting role on the adjustment rod 141, and the pinion 142 is sandwiched by the vertical plate 1214 where the second semicircular groove 1512 is located and the support tube 153 to limit its movement. axial movement of the adjusting rod 141.
  • two clamping holes 1513 are provided on both sides of the first semicircular groove 1511, and a pressing plate 154 is provided on the clamping hole 1513.
  • the clamping tongues 1541 are respectively provided on both sides of the pressing plate 154, and the clamping tongues 1541 are respectively inserted into the clamping holes 1513 to form a clamping fixation. In this way, the pressing plate 154 can restrict the adjustment rod 141 in the first semicircular groove 1511.
  • the adjustment rod 141 is restricted in its axial freedom by the pressing plate 154 and the supporting cylinder 153, and the inner end of the adjustment rod 141 is tightly matched with the pinion 142, and the pinion 142 is restricted between the second semicircular groove 1512 and the supporting cylinder 153, so the axial linear freedom of the adjustment rod 141 is also restricted, and the adjustment rod 141 can only rotate around its own axis.
  • the support portion 151 of the bracket 15 is located above the light source generator 13 , which facilitates the installation and fixation of the bracket 15 without increasing the lateral size of the entire projector.
  • the supporting portion 151 of the bracket 15 can also be installed on the left and right sides of the light source generator 13 , and the adjusting rod 141 and the pinion 142 are arranged following the supporting portion 151 , and the focusing function can also be realized.
  • an end of the adjustment rod 141 away from the pinion gear 142 is provided with There is a rotating handle 143.
  • the outer end of the adjusting rod 141 is provided with knurling, and the rotating handle 143 and the adjusting rod 141 are tightly connected and fixedly connected. When adjusting the focus, you can use multiple fingers to hold down the rotating handle 143 and rotate it to drive the adjusting rod 141 to rotate.
  • a through hole 115 is provided on the side wall of the handle groove 114, and the outer end of the adjusting rod 141 passes through the through hole 115 on the inner wall of the horizontally concave handle groove 114 of the outer shell 11, so that the through hole 115 through which the adjusting rod 141 passes through the outer shell 11 is hidden inside the handle groove 114, avoiding direct exposure of the through hole 115.
  • the main body 1 is also provided with a driving member 17 , and the output shaft of the driving member 17 is transmission-connected to the focusing gear 1311 .
  • the output shaft of the driving member 17 is provided with a transmission gear 18 , and the transmission gear 18 meshes with the focusing gear 1311 . It can be understood that in other embodiments, the output shaft of the driving member 17 can also be connected to the focusing gear 1311 through a screw or other single or multiple transmission members such as gears, again without limitation.
  • a protective cover is provided in the main machine 1 corresponding to the driving member 17 to protect and fix the driving member 17 .
  • the utility model provides a projector, which has the following advantages:
  • the projector provided by the embodiment of the present invention includes a host, a telescopic rod and a base.
  • One end of the telescopic rod extends into the host and is connected to the host, and the other end of the telescopic rod extends into the base.
  • the base Internally connected to the base, the base supports/lifts the main machine through the telescopic rod.
  • the main machine can move closer to or away from the base through the telescopic rod.
  • the telescopic rod When the telescopic rod is in a contracted state, the main machine can move toward or away from the base.
  • the telescopic rod is stored in the main machine and the base.
  • the projector and the telescopic rod are integrated, and there is no need to prepare an additional support rod for the projector; in addition, by arranging the support rod as a telescopic rod and allowing the telescopic rod to be in In the contracted state, the telescopic rod is stored in the host and the base, so that the projector can be folded when not in use, making it more beautiful, reducing the occupied space, and making it easy to transport.
  • the main machine of the embodiment of the present invention includes a shell.
  • the shell is provided with an inner cavity.
  • the inner cavity is provided with a built-in connecting component.
  • One end of the telescopic rod penetrates The inner cavity is connected to the built-in connection component, and the telescopic rod is hingedly connected to the outer shell through the built-in connection component. It is understandable that one end of the telescopic rod penetrates into the host and is hinged with the casing, thereby realizing the angle adjustment function of the projector, making the projector more adjustable and applicable, and conducive to improving the user experience.
  • the built-in connection assembly of the embodiment of the utility model further includes a pressure block, which is arranged on the cover plate, the extension arm is hinged to the pressure block, and a damping shaft is arranged at the hinge between the extension arm and the pressure block. It can be understood that the damping shaft is arranged at the hinge between the pressure block and the extension arm, and the damping force provided by the damping shaft can keep the angle unchanged after the host is adjusted, which is conducive to improving the working stability of the projector.
  • the cover plate is also provided with a covering tube.
  • One end of the telescopic rod passes through the cover plate and the covering tube in sequence and is connected to the middle section.
  • the covering tube is hollow.
  • the hollow area of the covering tube gradually increases in the direction away from the cover plate. It can be understood that the covering tube is used to limit the range of movement of the telescopic rod, thereby limiting the rotation range of the special-shaped frame and avoiding interference with other structures in the host due to excessive rotation.
  • the embodiment of the utility model uses a focusing structure in conjunction with a focusing gear to adjust the focal length of the lens, resulting in higher sensitivity.
  • a handle groove is provided on the main machine, and a through hole is provided on the inner wall of the handle groove.
  • the end of the adjustment rod away from the pinion is exposed through the through hole. It is understandable that the adjustment rod passes through the through hole on the inner wall of the handle groove, and the clever structure helps hide the internal structure of the projector and improves the overall aesthetics.
  • an inner cylinder is also provided on the base.
  • the end of the telescopic rod away from the main machine is provided with an end ring.
  • the telescopic rod is fixedly connected to the bottom surface of the inner cylinder through the end ring. It can be understood that by introducing the end ring, the connection stability between the telescopic rod and the inner cylinder can be improved and assembly can be facilitated.
  • the telescopic rod is hollow, and the host and the base are electrically connected through wires.
  • the wires are passed through the hollow telescopic rod, and a threading hole is provided in the middle of the bottom surface of the inner cylinder. , the wire passes through the end ring through the threading hole and enters the telescopic rod. It is understandable that the wires are routed through the telescopic rod, which is beneficial to enhancing the aesthetics of the projector.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)

Abstract

A projector, comprising a main unit (1), a telescopic rod (3), and a base (2). One end of the telescopic rod (3) extends into the main unit (1) and is connected to the main unit (1), the other end of the telescopic rod (3) extends into the base (2) and is connected to the base (2), and the base (2) supports/lifts the main unit (1) by means of the telescopic rod (3). The main unit (1) can be moved closer to or farther from the base (2) by means of the extension and retraction of the telescopic rod (3). When the telescopic rod (3) is in a retracted state, the two ends of the telescopic rod (3) are respectively accommodated in the main unit (1) and the base (2), so that the height of the main unit (1) can be directly adjusted without additional structural members such as a height adjustment bracket/hanger.

Description

一种投影仪a projector 【技术领域】【Technical field】
本实用新型涉及投影设备技术领域，特别涉及一种投影仪。The utility model relates to the technical field of projection equipment, in particular to a projector.
【背景技术】【Background technique】
投影仪是一种可以将图像或视频投射到幕布或墙面上的设备。投影仪的基本原理是先将光线照射到图像显示元件上来产生影像，然后通过镜头进行投影。在使用时，投影仪的高度位置需要调节至影像完整呈现在幕布/墙面上才能够更好地观看。市面上调节投影仪高度的大多数是外部支架来提升或者降低投影仪高度，或者将投影仪安装在吊架下方，由吊架来调节投影仪高度。由此可见，常见的投影仪都是在自身外部放置/安装高度调节机构，因而需要额外购买和安装投影仪的高度调节支架/吊架等结构件来满足调节高度的需求，使用便捷性不佳，有待改进。A projector is a device that projects images or videos onto a screen or wall. The basic principle of a projector is to first illuminate the image display element with light to produce an image, and then project it through the lens. When in use, the height of the projector needs to be adjusted so that the image is fully displayed on the screen/wall for better viewing. Most of the methods for adjusting the height of projectors on the market use external brackets to raise or lower the height of the projector, or the projector is installed under a ceiling mount and the ceiling mount is used to adjust the height of the projector. It can be seen that common projectors place/install the height adjustment mechanism outside the projector. Therefore, it is necessary to purchase and install additional structural parts such as the height adjustment bracket/hanger of the projector to meet the height adjustment needs, which is not very convenient to use. ,Room for improvement.
【实用新型内容】【Utility model content】
为解决现有投影仪便捷性不佳的技术问题，本实用新型提供一种投影仪。In order to solve the technical problem of poor convenience of existing projectors, the utility model provides a projector.
本实用新型解决技术问题的方案是提供一种投影仪，包括主机、伸缩杆和底座，所述伸缩杆的一端伸入所述主机内与所述主机相连，所述伸缩杆的另一端伸入所述底座内与所述底座相连，所述底座通过所述伸缩杆支撑/吊起主机，所述主机可通过所述伸缩杆的伸缩靠近或远离所述底座，当所述伸缩杆处于收缩状态时，所述伸缩杆两端分别收纳于所述主机和所述底座中。The solution of the utility model to solve the technical problem is to provide a projector, which includes a host, a telescopic rod and a base. One end of the telescopic rod extends into the host and is connected to the host, and the other end of the telescopic rod extends into The inside of the base is connected to the base. The base supports/lifts the main machine through the telescopic rod. The main machine can approach or move away from the base through the telescopic rod. When the telescopic rod is in a contracted state, When, the two ends of the telescopic rod are respectively stored in the main machine and the base.
进一步地所述主机包括外壳，所述外壳内设有内腔，所述内腔设有内置连接组件，所述伸缩杆的一端穿入所述内腔与所述内置连接组件相连，所述伸缩杆通过所述内置连接组件与所述外壳铰接。Further, the main machine includes a shell, an inner cavity is provided in the outer shell, and a built-in connecting component is provided in the inner cavity. One end of the telescopic rod penetrates into the inner cavity and is connected to the built-in connecting component. The telescopic rod The rod is hingedly connected to the housing through the built-in connection assembly.
进一步地，所述外壳包括相连的罩体和盖板，所述盖板 上设有避位孔，所述内置连接组件包括异形架，所述异形架包括相连的中间段和延伸臂，所述中间段与所述延伸臂之间的夹角为直角或钝角，所述伸缩杆从所述避位孔处伸入内腔，与所述中间段活动连接，所述延伸臂与所述盖板铰接，其铰接转轴线为伸缩杆与主机的相对旋转中心线。Further, the housing includes a connected cover body and a cover plate, and the cover plate There is an escape hole on the top, and the built-in connection component includes a special-shaped frame. The special-shaped frame includes a connected middle section and an extension arm. The angle between the middle section and the extension arm is a right angle or an obtuse angle. The telescopic rod extends into the inner cavity from the escape hole and is movably connected with the middle section. The extension arm is hinged with the cover plate, and its hinged rotation axis is the relative rotation center line of the telescopic rod and the main machine.
进一步地，所述内腔内还设有压块与阻尼轴，所述阻尼轴的两端为活动端，所述压块设于所述盖板上，所述延伸臂与所述压块分别与所述阻尼轴的一个活动端相连。Furthermore, the inner cavity is also provided with a pressure block and a damping shaft. Both ends of the damping shaft are movable ends. The pressure block is provided on the cover plate. The extension arm and the pressure block are respectively Connected to a movable end of the damping shaft.
另一方面，所述盖板上还设有遮盖筒，所述伸缩杆的一端依次穿过所述盖板和所述遮盖筒后与所述中间段相连，所述遮盖筒中空，所述遮盖筒的中空面积沿远离所述盖板的方向逐渐增大。On the other hand, a covering tube is also provided on the cover plate, and one end of the telescopic rod passes through the cover plate and the covering tube in sequence and is connected to the middle section. The covering tube is hollow, and the covering tube is hollow. The hollow area of the barrel gradually increases in the direction away from the cover plate.
进一步地，所述主机或所述底座一者上设有提手槽，另一者上设有下压槽；所述提手槽设于所述主机或所述底座的外侧壁上，所述下压槽设于所述主机靠近所述底座的一面或所述底座靠近所述主机的一面。Further, one of the main machine or the base is provided with a handle slot, and the other is provided with a depression groove; the handle slot is provided on the outer wall of the main machine or the base, and the The pressing groove is provided on a side of the main frame close to the base or a side of the base close to the main frame.
进一步地，所述主机内还设有光源发生器，所述光源发生器上设有镜头，所述镜头上设有调焦齿轮，通过转动所述调焦齿轮带动所述镜头转动，从而实现调节镜头内部透镜的位置；所述主机上还设有调焦结构，所述调焦结构包括相连的调节杆和小齿轮，所述调节杆的一端与所述小齿轮相连，所述小齿轮与所述调焦齿轮啮合，所述小齿轮的齿数小于所述调焦齿轮的齿数。Further, a light source generator is also provided in the host machine, a lens is provided on the light source generator, and a focusing gear is provided on the lens. By rotating the focusing gear, the lens is driven to rotate, thereby achieving adjustment. The position of the lens inside the lens; the main body is also provided with a focusing structure, the focusing structure includes a connected adjusting rod and a pinion, one end of the adjusting rod is connected to the pinion, and the pinion is connected to the pinion. The focusing gear meshes, and the number of teeth of the pinion gear is smaller than the number of teeth of the focusing gear.
进一步地，所述主机内还设有驱动件，所述驱动件的输出轴与所述调焦齿轮传动连接。Furthermore, a driving member is also provided in the main machine, and the output shaft of the driving member is transmission connected with the focusing gear.
进一步地，所述调节杆远离所述小齿轮的一端设有旋转把手。Further, a rotary handle is provided at one end of the adjustment rod away from the pinion gear.
进一步地，所述主机上设有提手槽，所述提手槽的内壁上设有通孔，所述调节杆远离所述小齿轮的一端从所述通孔处穿出外露。Further, a handle groove is provided on the main machine, a through hole is provided on the inner wall of the handle groove, and one end of the adjustment rod away from the pinion is exposed through the through hole.
进一步地所述底座上还设有内筒，所述伸缩杆远离所述主机的一端设有端环，所述伸缩杆通过所述端环与所述内筒的底面固定连接。Furthermore, an inner cylinder is provided on the base, and an end ring is provided at one end of the telescopic rod away from the main machine. The telescopic rod is fixedly connected to the bottom surface of the inner cylinder through the end ring.
进一步地，所述伸缩杆中空设置，所述主机与所述底座 通过导线实现电性连接，所述导线穿设于中空的所述伸缩杆内，所述内筒底面中间设有穿线孔，所述导线通过所述穿线孔穿过端环进入所述伸缩杆中。Further, the telescopic rod is hollow, and the main machine and the base Electrical connection is achieved through wires, which are passed through the hollow telescopic rod. There is a threading hole in the middle of the bottom surface of the inner cylinder. The wires pass through the end ring through the threading hole and enter the telescopic rod. .
进一步地，所述主机内还设有支架，所述支架包括相连并垂直固定的支承部和固连部，支承部上依次设置有同轴的第一半圆槽、第二半圆槽及支承筒，所述调节杆分别置入所述第一半圆槽与所述第二半圆槽，且所述调节杆的内端贯穿所述支承筒，所述小齿轮设于所述支承筒朝向所述第二半圆槽的一侧，且所述小齿轮端面抵顶在所述第二半圆槽的侧面上。Further, a bracket is also provided in the main machine. The bracket includes a supporting part and a fixed part that are connected and fixed vertically. The supporting part is sequentially provided with a coaxial first semicircular groove, a second semicircular groove and a supporting tube. The adjusting rod is placed in the first semicircular groove and the second semicircular groove respectively, and the inner end of the adjusting rod penetrates the support tube, and the pinion gear is disposed on the support tube toward the second semicircular groove. One side of the semicircular groove, and the end surface of the pinion gear presses against the side surface of the second semicircular groove.
进一步地，所述第一半圆槽的两侧设有两个卡孔，在所述卡孔上设有压板，所述压板两侧分别设有卡舌，所述卡舌分别***所述卡孔中形成卡接固定。Furthermore, two clamping holes are provided on both sides of the first semicircular groove, a pressure plate is provided on the clamping hole, and clamping tongues are respectively provided on both sides of the pressure plate, and the clamping tongues are respectively inserted into the clamping holes to form a clamping fixation.
进一步地，所述底座内间隔设有扬声器和配重块，所述扬声器通过所述伸缩杆内的导线与所述主机电性连接。Furthermore, a speaker and a counterweight are provided in the base at intervals, and the speaker is electrically connected to the host through a wire in the telescopic rod.
进一步地，所述底座内间隔设有配重块，所述配重块与所述扬声器间隔设置。Furthermore, a counterweight block is arranged at intervals in the base, and the counterweight block is arranged at intervals from the speaker.
本实用新型与现有技术相比的有益效果是：通过将投影仪分拆成主机和底座，再采用伸缩杆连接主机与底座，在使用投影仪时，使用者能够直接调整主机的高度，而无需额外的高度调节支架/吊架等结构件来满足调节投影高度的需求，使用成本得到降低，使用便捷性得到改善，满足了用户需求。Compared with the existing technology, the beneficial effects of this utility model are: by splitting the projector into a host and a base, and then using a telescopic rod to connect the host and the base, the user can directly adjust the height of the host when using the projector. There is no need for additional structural components such as height adjustment brackets/hangers to meet the needs of adjusting the projection height. The cost of use is reduced, the convenience of use is improved, and the needs of users are met.
与现有技术相比，本实用新型提供一种投影仪，具有以下优点：Compared with the existing technology, the utility model provides a projector, which has the following advantages:
1.本实用新型实施例提供的投影仪，包括主机、伸缩杆和底座，所述伸缩杆的一端伸入所述主机内与所述主机相连，所述伸缩杆的另一端伸入所述底座内与所述底座相连，所述底座通过所述伸缩杆支撑/吊起主机，所述主机可通过所述伸缩杆的伸缩靠近或远离所述底座，当所述伸缩杆处于收缩状态时，所述伸缩杆收纳于所述主机和所述底座中。可以理解的，通过将伸缩杆设置在底座和主机之间，使得投影仪与伸缩杆成为一体，无须额外为投影仪准备支撑杆；此外，通过将支撑杆设置为伸缩杆，并且让伸缩杆处于收缩状态时，所 述伸缩杆收纳于所述主机和所述底座中，使得投影仪在不使用时可以折叠起来，更加美观，降低占用的空间，同时也便于运输。1. The projector provided by the embodiment of the utility model includes a mainframe, a telescopic rod and a base, one end of the telescopic rod extends into the mainframe and is connected to the mainframe, the other end of the telescopic rod extends into the base and is connected to the base, the base supports/lifts the mainframe through the telescopic rod, the mainframe can be moved closer to or away from the base by extending and retracting the telescopic rod, and when the telescopic rod is in a retracted state, the telescopic rod is stored in the mainframe and the base. It can be understood that by setting the telescopic rod between the base and the mainframe, the projector and the telescopic rod are integrated, and there is no need to prepare an additional support rod for the projector; in addition, by setting the support rod as a telescopic rod and letting the telescopic rod be in a retracted state, the projector can be integrated with the telescopic rod. The telescopic rod is stored in the main unit and the base, so that the projector can be folded up when not in use, which is more beautiful, reduces the occupied space, and is also convenient for transportation.
2.本实用新型实施例的主机包括外壳，所述外壳内设有内腔，所述内腔设有内置连接组件，所述伸缩杆的一端穿入所述内腔与所述内置连接组件相连，所述伸缩杆通过所述内置连接组件与所述外壳铰接。可以理解的，的伸缩杆的一端穿入主机内与外壳铰接，从而实现了投影仪的角度调节功能，使得投影仪的可调节性及适用性更强，利于提高用户体验。2. The host of the embodiment of the present invention includes a shell, an inner cavity is provided in the outer shell, and a built-in connecting component is provided in the inner cavity. One end of the telescopic rod penetrates into the inner cavity and is connected to the built-in connecting component. , the telescopic rod is hingedly connected to the housing through the built-in connection component. It is understandable that one end of the telescopic rod penetrates into the host and is hinged with the casing, thereby realizing the angle adjustment function of the projector, making the projector more adjustable and applicable, and conducive to improving the user experience.
3.本实用新型实施例内置连接组件还包括压块，所述压块设于所述盖板上，所述延伸臂与所述压块铰接，所述延伸臂与所述压块的铰接处设有阻尼轴。可以理解的，压块与延伸臂的铰接出设有阻尼轴，通过阻尼轴提供的阻尼力可以让主机在调节完角度后保持该角度不变，利于提高投影仪的工作稳定性。3. The built-in connection component of the embodiment of the present invention also includes a pressure block, the pressure block is provided on the cover plate, the extension arm is hinged with the pressure block, and the hinge joint between the extension arm and the pressure block Equipped with damping shaft. It can be understood that the hinged joint between the pressure block and the extension arm is provided with a damping shaft. The damping force provided by the damping shaft allows the host to maintain the angle unchanged after adjusting the angle, which is beneficial to improving the working stability of the projector.
4.本实用新型实施例盖板上还设有遮盖筒，所述伸缩杆的一端依次穿过所述盖板和所述遮盖筒后与所述中间段相连，所述遮盖筒中空，所述遮盖筒的中空面积沿远离所述盖板的方向逐渐增大。可以理解的，通过遮盖筒来限制伸缩杆的活动范围，从而限制异形架的转动范围，避免因过渡转动而与主机内的其他结构发生干涉。4. In the embodiment of the present invention, the cover plate is also provided with a covering tube. One end of the telescopic rod passes through the cover plate and the covering tube in sequence and is connected to the middle section. The covering tube is hollow. The hollow area of the covering tube gradually increases in the direction away from the cover plate. It can be understood that the covering tube is used to limit the range of movement of the telescopic rod, thereby limiting the rotation range of the special-shaped frame and avoiding interference with other structures in the host due to excessive rotation.
5.本实用新型实施例通过采用调焦结构配合调焦齿轮来调节镜头的焦距，灵敏度更高。5. The embodiment of the present invention adopts a focusing structure and a focusing gear to adjust the focal length of the lens, resulting in higher sensitivity.
6.本实用新型实施例主机上设有提手槽，所述提手槽的内壁上设有通孔，所述调节杆远离所述小齿轮的一端从所述通孔处穿出外露。可以理解的，调节杆从提手槽内壁上的通孔处传出，结构巧妙利于隐藏投影仪的内部结构，提高整体的美观度。6. In the embodiment of the present invention, a handle groove is provided on the main machine, and a through hole is provided on the inner wall of the handle groove. The end of the adjustment rod away from the pinion is exposed through the through hole. It is understandable that the adjustment rod comes out from the through hole on the inner wall of the handle groove, and the clever structure helps to hide the internal structure of the projector and improve the overall aesthetics.
7.本实用新型实施例底座上还设有内筒，所述伸缩杆远离所述主机的一端设有端环，所述伸缩杆通过所述端环与所述内筒的底面固定连接。可以理解的，通过引入端环，可以提高伸缩杆与内筒的连接稳定性，而且方便装配。7. In the embodiment of the present utility model, an inner cylinder is also provided on the base. The end of the telescopic rod away from the main machine is provided with an end ring. The telescopic rod is fixedly connected to the bottom surface of the inner cylinder through the end ring. It can be understood that by introducing the end ring, the connection stability between the telescopic rod and the inner cylinder can be improved and assembly can be facilitated.
8.本实用新型实施例伸缩杆中空设置，所述主机与所述底座通过导线实现电性连接，所述导线穿设于中空的所述伸 缩杆内，所述内筒底面中间设有穿线孔，所述导线通过所述穿线孔穿过端环进入所述伸缩杆中。可以理解的，导线通过伸缩杆内进行走线，利于增强投影仪的美观度。8. In the embodiment of the present utility model, the telescopic rod is provided in a hollow position, and the main unit and the base are electrically connected through wires, and the wires are passed through the hollow telescopic rod. In the telescopic rod, a threading hole is provided in the middle of the bottom surface of the inner cylinder, and the wire passes through the end ring through the threading hole and enters the telescopic rod. It is understandable that the wires are routed through the telescopic rod, which is beneficial to enhancing the aesthetics of the projector.
【附图说明】[Picture description]
图1为本实用新型投影仪立体图(伸缩杆某一伸长状态)。Figure 1 is a perspective view of the projector of the present utility model (the telescopic rod is in a certain extended state).
图2为本实用新型投影仪剖视图(伸缩杆完全缩回状态)。Figure 2 is a cross-sectional view of the projector of the present utility model (the telescopic rod is fully retracted).
图3为本实用新型投影仪的伸缩杆、底座分解图(底座剖切)。Figure 3 is an exploded view of the telescopic rod and base of the projector of the present invention (base cutaway).
图4为本实用新型投影仪的底座分解图(底部视角)。Figure 4 is an exploded view of the base of the projector of the present invention (bottom perspective).
图5为本实用新型主机与伸缩杆装配内部立体图。Figure 5 is an internal perspective view of the assembly of the main unit and the telescopic rod of the present utility model.
图6为本实用新型主机与伸缩杆分解图。Figure 6 is an exploded view of the main unit and telescopic rod of the present utility model.
图7为本实用新型主机与伸缩杆装配底部视角立体图(主机相对伸缩杆旋转一个角度)。Figure 7 is a perspective view of the bottom of the assembly of the main unit and the telescopic rod of the utility model (the main unit is rotated at an angle relative to the telescopic rod).
图8为本实用新型投影仪的主机内部结构立体图。Figure 8 is a perspective view of the internal structure of the main body of the projector of the present utility model.
图9为本实用新型投影仪的主机内部结构分解图。Figure 9 is an exploded view of the internal structure of the host of the projector of the present invention.
图10为本实用新型投影仪主机背部视角立体图。Figure 10 is a perspective view from the back of the main unit of the projector of the present invention.
图11为本实用新型投影仪主机部分结构的***图。Figure 11 is an exploded view of part of the main structure of the projector of the present invention.
附图标识说明：
1、主机；11、外壳；111、罩体；112、盖板；1121、螺纹
筒；1122、壁体；1123、避位孔；113、内腔；114、提手槽；115、通孔；12、主电路板；13、光源发生器；131、镜头；1311、调焦齿轮；14、调焦结构；141、调节杆；142、小齿轮；143、旋转把手；15、支架；151、支承部；1511、第一半圆槽；1512、第二半圆槽；1513、卡孔；152、固连部；1521、方孔；153、支承筒；154、压板；1541、卡舌；16、遮盖筒；17、驱动件；18、传动齿轮；19、保护盖；
2、底座；21、下压槽；22、内筒；221、穿孔；222、穿
线孔；23、扬声器；24、配重块；25、内螺纹筒；
3、伸缩杆；31、端环；311、螺孔；312、侧螺纹孔；
4、内置连接组件；41、异形架；411、中间段；4111、
插杆；4112、导线槽；4113、压线螺丝；412、延伸臂；4121、内孔；42、阻尼轴；43、压块；431、固定孔。 Explanation of the attached picture identification:
1. Main machine; 11. Shell; 111. cover; 112. cover; 1121. threaded barrel; 1122. wall; 1123. escape hole; 113. inner cavity; 114. handle slot; 115. through hole; 12. Main circuit board; 13. Light source generator; 131. Lens; 1311. Focusing gear; 14. Focusing structure; 141. Adjustment lever; 142. Pinion; 143. Rotating handle; 15. Bracket; 151. Support 1511. First semicircular groove; 1512. Second semicircular groove; 1513. Snap hole; 152. Fixed part; 1521. Square hole; 153. Support cylinder; 154. Pressing plate; 1541. Tab; 16. Cover cylinder ;17. Driving parts; 18. Transmission gear; 19. Protective cover;
2. Base; 21. Pressure groove; 22. Inner barrel; 221. Perforation; 222. Wiring hole; 23. Speaker; 24. Counterweight; 25. Internal thread barrel;
3. Telescopic rod; 31. End ring; 311. Screw hole; 312. Side threaded hole;
4. Built-in connection components; 41. Special-shaped frame; 411. Middle section; 4111.
Insert rod; 4112, wire trough; 4113, crimping screw; 412, extension arm; 4121, inner hole; 42, damping shaft; 43, pressure block; 431, fixing hole.
【具体实施方式】【Detailed ways】
为了使本实用新型的目的，技术方案及优点更加清楚明白，以下结合附图及实施实例，对本实用新型进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本实用新型，并不用于限定本实用新型。In order to make the purpose, technical solutions and advantages of the present utility model more clear, the utility model will be further described in detail below with reference to the accompanying drawings and implementation examples. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.
需要说明的是，本发明的说明书和权利要求书中的术语“第一”和“第二”等是用于区别不同的对象，而不是用于描述特定顺序。It should be noted that the terms “first” and “second” in the description and claims of the present invention are used to distinguish different objects, rather than describing a specific sequence.
需要说明的是，当元件被称为“固定于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的。It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
在本实用新型中，术语“上”、“下”、“左”、“右”、“前”、“后”、“顶”、“底”、“内”、“外”、“中”、“竖直”、“水平”、“横向”、“纵向”等指示的方位或位置关系为基于附图所示的方位或位置关系。这些术语主要是为了更好地描述本实用新型及其实施例，并非用于限定所指示的装置、元件或组成部分必须具有特定方位，或以特定方位进行构造和操作。In this utility model, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", and "middle" The orientation or positional relationships indicated by "vertical", "horizontal", "horizontal", "longitudinal", etc. are based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated device, element or component to have a specific orientation, or to be constructed and operated in a specific orientation.
并且，上述部分术语除了可以用于表示方位或位置关系以外，还可能用于表示其他含义，例如术语“上”在某些情况下也可能用于表示某种依附关系或连接关系。对于本领域普通技术人员而言，可以根据具体情况理解这些术语在本实用新型中的具体含义。Moreover, some of the above terms may also be used to express other meanings in addition to indicating orientation or positional relationships. For example, the term "upper" may also be used to express a certain dependence relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.
此外，术语“安装”、“设置”、“设有”、“连接”、“相连”应作广义理解。例如，可以是固定连接，可拆卸连接，或整体式构造；可以是机械连接，或电连接；可以是直接相连，或者是通过中间媒介间接相连，又或者是两个装置、元件或组成部分之间内部的连通。对于本领域普通技术人员而言，可以根据具体情况理解上述术语在本实用新型中的具体含义。Furthermore, the terms "mounted," "set," "provided," "connected," and "connected" are to be construed broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or between two devices, components or components. internal connectivity. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
本实用新型实施例是一种自带升降功能的投影仪，其具体结构如图1-10所示。The embodiment of the present utility model is a projector with a built-in lifting function, the specific structure of which is shown in Figure 1-10.
如图1和图2所示，投影仪包括主机1、底座2以及伸 缩杆3。伸缩杆3上端***主机1中并与主机1连接，伸缩杆3下端***底座2中并与底座2连接。伸缩杆3的伸缩方向(A-B方向)为主机1相对底座2的高度调节方向。底座2通过伸缩杆3支撑/吊起主机1，也即是伸缩杆3可以起到支撑主机1或者吊起主机1的作用，用户可以按需调整使用方式。As shown in Figure 1 and Figure 2, the projector includes a host 1, a base 2 and an extension Shrink rod 3. The upper end of the telescopic rod 3 is inserted into the host machine 1 and connected with the main machine 1, and the lower end of the telescopic rod 3 is inserted into the base 2 and connected with the base 2. The telescopic direction (AB direction) of the telescopic rod 3 is the height adjustment direction of the main machine 1 relative to the base 2 . The base 2 supports/lifts the host 1 through the telescopic rod 3, that is, the telescopic rod 3 can play the role of supporting the host 1 or lifting the host 1, and the user can adjust the usage method as needed.
可以理解的，本实用新型实施例的投影仪分拆成主机1和底座2，再采用伸缩杆3连接主机1与底座2，在使用时，用户直接将主机1与底座2拉开便可以调整主机1的高度，而无需额外的高度调节支架/吊架等结构件来满足调节投影高度的需求。如图2所示，主机1的顶部设有水平内凹的提手槽114，而底座2朝向主机1的表面设有凹陷的下压槽21。在需要提高主机1高度时，一手按住下压槽21，另一手***提手槽114中并向上提主机1即可。而需要降低主机1高度时，直接将主机1向底座2推动即可。It can be understood that the projector in the embodiment of the present invention is divided into a host 1 and a base 2, and a telescopic rod 3 is used to connect the host 1 and the base 2. When in use, the user can directly pull the host 1 and the base 2 apart to adjust. The height of the host 1, without the need for additional structural components such as height adjustment brackets/hangers to meet the needs of adjusting the projection height. As shown in FIG. 2 , the top of the main unit 1 is provided with a horizontally concave handle groove 114 , and the surface of the base 2 facing the main unit 1 is provided with a concave depression groove 21 . When it is necessary to raise the height of the main unit 1, press the lower pressure groove 21 with one hand, insert the other hand into the handle slot 114 and lift the main unit 1 upward. When you need to lower the height of the host 1, just push the host 1 toward the base 2.
具体的，本实施例中，当伸缩杆3处于某一个伸长状态时，投影仪主机1与底座2之间存在间隔。可以理解的，实际间隔由伸缩杆3的伸缩状态决定，在此不作限定。Specifically, in this embodiment, when the telescopic rod 3 is in a certain extended state, there is a gap between the projector main body 1 and the base 2 . It can be understood that the actual interval is determined by the telescopic state of the telescopic rod 3 and is not limited here.
当伸缩杆3处于收缩状态时，投影仪主机1与底座2相互贴合接触，而伸缩杆3则被包裹在投影仪主机1和底座2中。具体地，当伸缩杆3处于完全缩回状态时，伸缩杆3一段被包裹在投影仪主机1中，另一段被包裹在底座2中。由此使得伸缩杆3在缩回状态不外露，改善了投影仪整体性，造型效果得到改善，在运输时没有外露伸缩杆3的阻挡，因此也提升投影仪的运输便携性。When the telescopic rod 3 is in a contracted state, the projector main body 1 and the base 2 are in close contact with each other, and the telescopic rod 3 is wrapped in the projector main body 1 and the base 2 . Specifically, when the telescopic rod 3 is in a fully retracted state, one section of the telescopic rod 3 is wrapped in the projector main body 1 and the other section is wrapped in the base 2 . As a result, the telescopic rod 3 is not exposed in the retracted state, which improves the integrity of the projector and improves the modeling effect. There is no obstruction by the exposed telescopic rod 3 during transportation, thus improving the transport portability of the projector.
在一些实施例中，主机1包括外壳11，外壳11包括相连的罩体111和盖板112，由罩体111与盖板112围合形成内腔113，伸缩杆3穿过盖板112进入内腔113。In some embodiments, the host 1 includes a shell 11, and the shell 11 includes a connected cover body 111 and a cover plate 112. The cover body 111 and the cover plate 112 form an inner cavity 113, and the telescopic rod 3 passes through the cover plate 112 and enters the interior. Cavity 113.
可选的，提手槽114设于罩体111和/或盖板112上，具体视罩体111和盖板112的结构及连接关系决定。Optionally, the handle slot 114 is provided on the cover body 111 and/or the cover plate 112 , depending on the structure and connection relationship between the cover body 111 and the cover plate 112 .
比如说，在一些实施例中，盖板112设在罩体111下方，那么此时提手槽114可设置于盖板112或罩体111上。但在其他实施例中，比如吊装的投影仪中，盖板112也可以设在罩体111上方，那么此时提手槽114设置于罩体111上。 For example, in some embodiments, the cover 112 is provided below the cover 111 , then the handle slot 114 can be provided on the cover 112 or the cover 111 . However, in other embodiments, such as a ceiling-mounted projector, the cover 112 can also be disposed above the cover 111 , and then the handle slot 114 is disposed on the cover 111 .
在一些实施例中，如图2和图3所示，伸缩杆3一段***到底座2中并形成固定连接。具体地，伸缩杆3一段的端头固定连接一个端环31，而底座2中设有一个内筒22，伸缩杆3***内筒22中并通过端环31与内筒22底面形成固定连接。端环31***伸缩杆3端口中并通过从伸缩杆3侧壁穿入的螺钉拧入端环31的侧螺纹孔312中形成固定连接。端环31还设有2个螺孔311，而内筒22的底面设有对应螺孔311的穿孔221，端环31与内筒22底面通过从穿孔221穿入的螺钉拧入端环31的螺孔311中形成固定连接。此外，在内筒22底面中间位置设有穿线孔222，穿线孔222用于供导线(未示出)贯穿，导线从穿线孔222贯穿之后穿过端环31进入伸缩杆3中，伸缩杆3内的导线为螺旋状。导线主要用于主机1与底座2之间实现电连接。In some embodiments, as shown in Figures 2 and 3, a section of the telescopic rod 3 is inserted into the base 2 and forms a fixed connection. Specifically, the end of a section of the telescopic rod 3 is fixedly connected to an end ring 31, and an inner cylinder 22 is provided in the base 2. The telescopic rod 3 is inserted into the inner cylinder 22 and is fixedly connected to the bottom surface of the inner cylinder 22 through the end ring 31. The end ring 31 is inserted into the port of the telescopic rod 3 and screwed into the side threaded hole 312 of the end ring 31 through screws penetrating from the side wall of the telescopic rod 3 to form a fixed connection. The end ring 31 is also provided with two screw holes 311, and the bottom surface of the inner cylinder 22 is provided with a through hole 221 corresponding to the screw hole 311. The end ring 31 and the bottom surface of the inner cylinder 22 are screwed into the end ring 31 through screws that penetrate through the through holes 221. A fixed connection is formed in the screw hole 311. In addition, a threading hole 222 is provided in the middle of the bottom surface of the inner cylinder 22. The threading hole 222 is used for a wire (not shown) to pass through. The wire passes through the threading hole 222 and then passes through the end ring 31 and enters the telescopic rod 3. The telescopic rod 3 The wire inside is spiral. The wires are mainly used for electrical connection between the host 1 and the base 2.
请参阅图4，在实施时，可以将底座2单纯作为支撑使用，又可以在底座2内部设置一些电子元件，譬如底座2内部加入无线充电发射器，以使得投影仪具备了无线充电的功能，又或者底座2内部加入扬声器23，使得扬声器23与主机1相隔一定距离，减少扬声器23振动对投影影像的影响。另外，底座2内还可以设置红外感应器、电池、显示屏、LE D灯珠、按键等常规的电子元件来实现相应的常规功能，譬如显示屏可以显示时间、天气等信息，按键可以用于控制主机1的镜头开关、调焦等，红外感应器用于感应投影幕距离等等。Please refer to Figure 4. During implementation, the base 2 can be used simply as a support, or some electronic components can be installed inside the base 2, such as a wireless charging transmitter inside the base 2, so that the projector has a wireless charging function. Alternatively, a speaker 23 may be added inside the base 2 so that the speaker 23 is separated from the host 1 by a certain distance to reduce the impact of the vibration of the speaker 23 on the projected image. In addition, the base 2 can also be equipped with infrared sensors, batteries, display screens, LED lamp beads, buttons and other conventional electronic components to implement corresponding conventional functions. For example, the display screen can display time, weather and other information, and the buttons can be used for It controls the lens switch, focus adjustment, etc. of the host 1, and the infrared sensor is used to sense the distance of the projection screen, etc.
在一些实施例中，如图2和图4所示，在底座2内还设有两个扬声器23，扬声器23与主机1(图2)内部的主电路板12(图2)通过从伸缩杆3穿过的导线实现电连接。主电路板12输出音频至扬声器23进行播放的技术为常规技术，在此不再赘述其具体原理。投影仪播放画面时所带的声音可以从扬声器23播放，而当伸缩杆3处于伸长状态时，扬声器23与主机1隔着一定距离，可以一定程度上减少声音振动对画面的影响。此外，如图4所示，在底座2内还设有配重块24，配重块24设于扬声器23的相对另一侧。配重块24用于增加整体的稳定性。此外，如图4所示，在底座2的底面中间位置固定设有一个内螺纹筒25，内螺纹筒25用于拧入外 部支撑结构(譬如投影仪外部支架、投影仪吊架等)所带的固定螺丝。底座2底面通常由注塑形成，而内嵌的内螺纹筒25则为五金件。In some embodiments, as shown in Figures 2 and 4, two speakers 23 are also provided in the base 2. The speakers 23 communicate with the main circuit board 12 (Figure 2) inside the host 1 (Figure 2) through a telescopic rod. 3 wires passed through to achieve electrical connection. The technology of the main circuit board 12 outputting audio to the speaker 23 for playing is a conventional technology, and its specific principles will not be described again here. The sound when the projector plays the picture can be played from the speaker 23. When the telescopic rod 3 is in the extended state, the speaker 23 is separated from the host 1 by a certain distance, which can reduce the impact of sound vibration on the picture to a certain extent. In addition, as shown in FIG. 4 , a counterweight block 24 is also provided in the base 2 , and the counterweight block 24 is located on the opposite side of the speaker 23 . Counterweight 24 is used to increase overall stability. In addition, as shown in Figure 4, an internal thread barrel 25 is fixedly provided at the middle position of the bottom surface of the base 2, and the internal thread barrel 25 is used to screw into the external Fixing screws provided with the external support structure (such as projector external bracket, projector hanger, etc.). The bottom surface of the base 2 is usually formed by injection molding, and the embedded internal thread barrel 25 is a hardware component.
进一步的，请结合图2和图5，内腔113中设有内置连接组件4，从盖板112穿入的一个伸缩杆3通过内置连接组件4与盖板112形成铰链连接，该铰链连接的轴线是调节投影仪角度时投影仪相对伸缩杆3旋转的中心线。Further, please combine Figure 2 and Figure 5. There is a built-in connecting component 4 in the inner cavity 113. A telescopic rod 3 that penetrates from the cover 112 forms a hinge connection with the cover 112 through the built-in connecting component 4. The hinge connection is The axis is the center line around which the projector rotates relative to the telescopic rod 3 when adjusting the angle of the projector.
进一步的，内置连接组件4包括异形架41，异形架41包括中间段411以及两端分别设有延伸臂412，并且两个延伸臂412同向延伸。在其他实施例中，也可以仅在异形架41的中间段411其中一侧设置延伸臂412。Further, the built-in connection component 4 includes a special-shaped frame 41. The special-shaped frame 41 includes a middle section 411 and extension arms 412 respectively provided at both ends, and the two extension arms 412 extend in the same direction. In other embodiments, the extension arm 412 may be provided only on one side of the middle section 411 of the special-shaped frame 41 .
在一些实施例中，伸缩杆3上面一段***到主机1中并形成铰接。具体地，如图2、5、6所示，伸缩杆3***主机1的一端与异形架41的中间段411形成活动连接。如图5、6所示，延伸臂412垂直连接异形架41的中间段411，在实施时，延伸臂412与异形架41中间段411可以一体成型，也即是异形架41整体是一体成型制成。如图5、6所示，伸缩杆3与异形架41的中间段411固定连接并且延伸臂412长度方向平行于伸缩杆3长度方向。延伸臂412延伸至供伸缩杆3贯穿的主机1的盖板112并且延伸臂412与盖板112形成铰接，其铰接转轴线为伸缩杆3与主机1的相对旋转中心线。可以理解的是，在其他实施例中，延伸臂412与中间段411也并不一定要垂直连接，譬如延伸臂412与中间段411形成钝角也是可行的方案。In some embodiments, the upper section of the telescopic rod 3 is inserted into the main body 1 and forms a hinge. Specifically, as shown in FIGS. 2 , 5 and 6 , one end of the telescopic rod 3 inserted into the main machine 1 forms a movable connection with the middle section 411 of the special-shaped frame 41 . As shown in Figures 5 and 6, the extension arm 412 is vertically connected to the middle section 411 of the special-shaped frame 41. During implementation, the extension arm 412 and the middle section 411 of the special-shaped frame 41 can be integrally formed, that is, the special-shaped frame 41 is integrally formed. become. As shown in FIGS. 5 and 6 , the telescopic rod 3 is fixedly connected to the middle section 411 of the special-shaped frame 41 and the length direction of the extension arm 412 is parallel to the length direction of the telescopic rod 3 . The extension arm 412 extends to the cover plate 112 of the main machine 1 through which the telescopic rod 3 penetrates. The extension arm 412 is hinged with the cover plate 112 , and its hinge rotation axis is the relative rotation center line of the telescopic rod 3 and the main machine 1 . It can be understood that in other embodiments, the extension arm 412 and the middle section 411 do not have to be connected vertically. For example, it is also a feasible solution for the extension arm 412 and the middle section 411 to form an obtuse angle.
在一些实施例中，如图5、6所示，伸缩杆3的端头与异形架41的中间段411固定连接，延伸臂412从异形架41的中间段411向伸缩杆3的另一侧端头延伸。具体地，异形架41的中间段411设有插杆4111，插杆4111与延伸臂412同向延伸，插杆4111***伸缩杆3的一侧端头内形成活动连接或固定连接。具体的，插杆4111与伸缩杆3为可沿伸缩杆3长度方向滑动的轴孔连接；或，插杆4111与伸缩杆3端头的固定连接方式采用卡接、铆压连接、螺钉固连、紧配合连接的其中一种或多于一种的组合，譬如可以是卡接与铆压连接的组合、紧配合连接与铆压连接的组合等等。铆压连接是指 在伸缩杆3外壁施加压力使其产生小形变，小形变压入插杆4111中形成压紧固定。此外，如图6所示，伸缩杆3中空以供螺旋导线穿过，且插杆4111中空以供导线穿过，螺旋导线与导线实为同一根线。在异形架41的中间段411的上部设有导线槽4112和压线螺丝4113，从插杆4111穿过的导线经过导线槽4112，并且用压线螺丝4113压紧固定，这样可以避免穿出的导线与异形架41上方的镜头131产生接触。In some embodiments, as shown in Figures 5 and 6, the end of the telescopic rod 3 is fixedly connected to the middle section 411 of the special-shaped frame 41, and the extension arm 412 extends from the middle section 411 of the special-shaped frame 41 to the other side of the telescopic rod 3 End extension. Specifically, the middle section 411 of the special-shaped frame 41 is provided with a plug-in rod 4111. The plug-in rod 4111 extends in the same direction as the extension arm 412. The plug-in rod 4111 is inserted into one end of the telescopic rod 3 to form a movable connection or a fixed connection. Specifically, the insertion rod 4111 and the telescopic rod 3 are connected through an axis hole that can slide along the length direction of the telescopic rod 3; or the fixed connection between the insertion rod 4111 and the end of the telescopic rod 3 adopts snap connection, riveting connection, or screw connection. , one or more than one combination of tight-fitting connections, for example, it can be a combination of snap-fitting and riveting connections, a combination of tight-fitting connections and riveting connections, etc. Riveting connection refers to Pressure is applied to the outer wall of the telescopic rod 3 to cause small deformation, and the small deformation is pressed into the insertion rod 4111 to form a compression fixation. In addition, as shown in Figure 6, the telescopic rod 3 is hollow for the spiral conductor to pass through, and the insertion rod 4111 is hollow for the conductor to pass through. The spiral conductor and the conductor are actually the same line. A wire trough 4112 and a crimping screw 4113 are provided on the upper part of the middle section 411 of the special-shaped frame 41. The wire passing through the insertion rod 4111 passes through the wire trough 4112 and is pressed and fixed with the crimping screw 4113, thus preventing the wire from passing out. The wire comes into contact with the lens 131 above the special-shaped frame 41 .
在一些实施例中，如图2和图6所示，延伸臂412在与主机1的盖板112的铰接处设有阻尼轴42和压块43。压块43通过两颗螺丝(未示出)固定在盖板112的两个螺纹筒1121上。阻尼轴42采用两头活动端为六角螺母形状的直线阻尼轴。阻尼轴42两头活动端分别***到延伸臂412的内孔4121和压块43的固定孔431中并形成固定连接。阻尼轴42可通过外购取得。在一些实施例中，如图6所示，异形架41的中间段411的两端分别设有延伸臂412，因此阻尼轴42、压块43都分别有对称设置的两个。两边的延伸臂412分别铰接盖板112，提高了连接的稳定性，在调节俯仰角时候整体结构也会更稳定。In some embodiments, as shown in FIGS. 2 and 6 , the extension arm 412 is provided with a damping shaft 42 and a pressure block 43 at a hinged joint with the cover 112 of the main body 1 . The pressing block 43 is fixed on the two threaded barrels 1121 of the cover plate 112 through two screws (not shown). The damping shaft 42 adopts a linear damping shaft with two movable ends in the shape of hexagonal nuts. The two movable ends of the damping shaft 42 are respectively inserted into the inner hole 4121 of the extension arm 412 and the fixed hole 431 of the pressure block 43 to form a fixed connection. The damping shaft 42 can be purchased externally. In some embodiments, as shown in FIG. 6 , the two ends of the middle section 411 of the special-shaped frame 41 are respectively provided with extension arms 412 , so there are two damping shafts 42 and two pressure blocks 43 that are symmetrically arranged. The extension arms 412 on both sides are hinged to the cover 112 respectively, which improves the stability of the connection and makes the overall structure more stable when adjusting the pitch angle.
在一些实施例中，如图6所示，盖板112上还设有遮盖筒16，伸缩杆3从遮盖筒16穿过。遮盖筒16的作用是遮盖伸缩杆3两侧的内部结构。遮盖筒16隔在延伸臂412与伸缩杆3之间，而遮盖筒16的底部则通过四个螺钉(未示出)固定在盖板112上，而且遮盖筒16与盖板112的避位孔1123对应连通。本领域技术人员在实施时，应知道遮盖筒16内的腔体形状大小设计需要考虑伸缩杆3的活动范围，要避免出现阻挡了伸缩杆3活动的情况。In some embodiments, as shown in FIG. 6 , the cover plate 112 is also provided with a covering tube 16 , and the telescopic rod 3 passes through the covering tube 16 . The function of the covering tube 16 is to cover the internal structures on both sides of the telescopic rod 3 . The covering tube 16 is separated between the extension arm 412 and the telescopic rod 3, and the bottom of the covering tube 16 is fixed on the cover plate 112 through four screws (not shown), and the escape holes between the covering tube 16 and the cover plate 112 1123 corresponds to connectivity. Those skilled in the art should know that the shape and size of the cavity in the covering tube 16 needs to take into account the range of movement of the telescopic rod 3 during implementation, and avoid blocking the movement of the telescopic rod 3 .
进一步的，伸缩杆3的一端依次穿过盖板112和遮盖筒后16与中间段411相连，遮盖筒16中空，遮盖筒16的中空面积沿远离盖板112的方向逐渐增大。Further, one end of the telescopic rod 3 passes through the cover plate 112 and the rear cover 16 of the cover tube and is connected to the middle section 411 in sequence. The cover tube 16 is hollow, and the hollow area of the cover tube 16 gradually increases in the direction away from the cover plate 112 .
可以理解的，通过遮盖筒16来限制伸缩杆3的活动范围，从而限制异形架41的转动范围，避免伸缩杆3因过渡转动而与主机1内的其他结构发生干涉。It can be understood that the movable range of the telescopic rod 3 is limited by the covering tube 16, thereby limiting the rotation range of the special-shaped frame 41 and preventing the telescopic rod 3 from interfering with other structures in the host 1 due to excessive rotation.
如图1和图7所示，通过异形架41将铰接位置靠近盖板112，也即是旋转中心靠近盖板112，因此调节主机1俯仰角 时，伸缩杆3相对摆动同样的角度在盖板112处的活动范围就会相对更小，盖板112只需要开设较小的避位孔1123就可以满足伸缩杆3活动范围需求，也即壁体1122较小的避位孔1123也能满足主机1的俯仰角调整范围，避免开孔过大导致壁体1122强度减弱。如图7所示，伸缩杆3相对旋转了一个角度，伸缩杆3与避位孔1123产生接触时即为伸缩杆3旋转到最大角度，也即是到达了可以调整的最大俯仰角。As shown in Figures 1 and 7, the hinge position is close to the cover 112 through the special-shaped frame 41, that is, the rotation center is close to the cover 112, so the pitch angle of the host 1 is adjusted. When the telescopic rod 3 swings relatively at the same angle, the range of movement at the cover 112 will be relatively smaller. The cover 112 only needs to open a smaller escape hole 1123 to meet the demand for the range of movement of the telescopic rod 3, that is, the wall The smaller escape hole 1123 of the body 1122 can also meet the pitch angle adjustment range of the host 1 and avoid weakening the strength of the wall 1122 caused by an excessively large opening. As shown in Figure 7, the telescopic rod 3 has relatively rotated an angle. When the telescopic rod 3 comes into contact with the escape hole 1123, the telescopic rod 3 rotates to the maximum angle, that is, it reaches the maximum adjustable pitch angle.
如图1、8、9所示，在主机1内设有光源发生器13(即投影仪的光机)以及调焦结构14。光源发生器13带有朝向前方的镜头131及镜头131***的调焦齿轮1311。通过旋转调焦齿轮1311则可调节光源发生器13镜头131内部透镜的位置从而实现调节焦距，其具体结构设计为常规技术，在此不再赘述。调焦结构14包括调节杆141及小齿轮142。小齿轮142与投影仪镜头131的调焦齿轮1311形成啮合。调节杆141可以通过金属制成，譬如铁。调节杆141的内端***小齿轮142并且用于带动小齿轮142绕调节杆141轴线旋转。具体地，调节杆141的内端外表做了滚花，当调节杆141内端对应***小齿轮142中孔时两者为紧配合，因此调节杆141就可以直接驱动小齿轮142转动。As shown in Figures 1, 8, and 9, the host 1 is provided with a light source generator 13 (ie, the optical engine of the projector) and a focusing structure 14. The light source generator 13 has a lens 131 facing forward and a focusing gear 1311 on the periphery of the lens 131 . By rotating the focusing gear 1311, the position of the internal lens of the lens 131 of the light source generator 13 can be adjusted to adjust the focal length. Its specific structural design is conventional technology and will not be described again here. The focusing structure 14 includes an adjustment rod 141 and a pinion 142 . The pinion gear 142 is meshed with the focus gear 1311 of the projector lens 131 . The adjusting rod 141 can be made of metal, such as iron. The inner end of the adjusting rod 141 is inserted into the pinion gear 142 and used to drive the pinion gear 142 to rotate around the axis of the adjusting rod 141 . Specifically, the inner end of the adjusting rod 141 is knurled. When the inner end of the adjusting rod 141 is inserted into the hole of the pinion gear 142, the two are tightly matched. Therefore, the adjusting rod 141 can directly drive the pinion gear 142 to rotate.
如图1、10所示，调节杆141的外端作为手动调节端并且穿出主机1的外壳11之外，即调节杆141部分被固定在外壳11内，而小齿轮142(图9)则设在外壳11内，因此仅有调节杆141从外壳11贯穿，调节杆141的尺寸比较小，因而调节杆141与外壳11之间需要密封的面积就比较小，容易改善密封设计以改善产品质量。As shown in Figures 1 and 10, the outer end of the adjusting rod 141 is used as a manual adjustment end and goes out of the housing 11 of the host 1. That is, the adjusting rod 141 is partially fixed in the housing 11, while the pinion 142 (Fig. 9) It is located in the casing 11, so only the adjusting rod 141 penetrates through the casing 11. The size of the adjusting rod 141 is relatively small, so the area that needs to be sealed between the adjusting rod 141 and the casing 11 is relatively small. It is easy to improve the sealing design to improve product quality. .
在一些实施例中，如图8、9所示，小齿轮142的直径小于一般投影仪调焦齿轮直径的三分之一，因此相比直接手指拨动调焦齿轮1311的结构，调焦结构14在调焦时相对更省力、需要旋转的圈数更多因而使得操作者更容易控制调焦速度、准度，使用方便性得到提升。In some embodiments, as shown in Figures 8 and 9, the diameter of the small gear 142 is less than one-third of the diameter of the general projector focusing gear. Therefore, compared with the structure of directly moving the focusing gear 1311 with fingers, the focusing structure 14 is relatively more labor-saving when focusing and requires more circles of rotation, making it easier for the operator to control the focusing speed and accuracy, thereby improving the ease of use.
在一些实施例中，如图1、8、9所示，主机1内还设有支架15。支架15可采用硬塑料或者铝材或者钢材制成。支架15被固定在光源发生器13上，而调节杆141及小齿轮142均则固定在支架15上。如图8、9所示，支架15包括一体成 型的支承部151和固连部152，支承部151与固连部152相互垂直固定连接，支承部151与投影仪光源发生器13贴合，固连部152则与投影仪光源发生器13正面通过螺钉形成固定连接，调节杆141和小齿轮142均固定在支承部151上。固连部152中间设有方孔1521，方孔1521供投影仪的镜头131穿过。In some embodiments, as shown in Figures 1, 8, and 9, the host 1 is also provided with a bracket 15. The bracket 15 can be made of hard plastic, aluminum or steel. The bracket 15 is fixed on the light source generator 13 , and the adjusting rod 141 and the pinion 142 are both fixed on the bracket 15 . As shown in Figures 8 and 9, the bracket 15 includes an integral The supporting part 151 and the fixing part 152 are vertically fixedly connected to each other. The supporting part 151 is attached to the projector light source generator 13, and the fixing part 152 is in front of the projector light source generator 13. A fixed connection is formed by screws, and the adjusting rod 141 and the pinion gear 142 are both fixed on the supporting part 151 . A square hole 1521 is provided in the middle of the fixing part 152, and the square hole 1521 allows the lens 131 of the projector to pass through.
在一些实施例中，如图8、9所示，在调节杆141长度方向上，支承部151一端设置支承筒153，另一端设置第一半圆槽1511，在第一半圆槽1511与支承筒153之间还设有一个第二半圆槽1512，而且第一半圆槽1511、支承筒153、第二半圆槽1512同轴。调节杆141分别置入于第一半圆槽1511、第二半圆槽1512中，而调节杆141的内端则贯穿支承筒153，小齿轮142设在支承筒153朝向第二半圆槽1512的一侧，并且小齿轮142端面抵顶在第二半圆槽1512所在竖板的侧面上。第一半圆槽1511、第二半圆槽1512及支承筒153对调节杆141起到了支承作用，而小齿轮142被第二半圆槽1512所在的竖板1214及支承筒153夹在中间而限制了其在调节杆141的轴向移动。In some embodiments, as shown in Figures 8 and 9, in the length direction of the adjustment rod 141, the support portion 151 is provided with a support tube 153 at one end and a first semicircular groove 1511 at the other end. Between the first semicircular groove 1511 and the support tube 153 There is also a second semicircular groove 1512 therebetween, and the first semicircular groove 1511, the support tube 153, and the second semicircular groove 1512 are coaxial. The adjusting rod 141 is placed in the first semicircular groove 1511 and the second semicircular groove 1512 respectively, and the inner end of the adjusting rod 141 penetrates the support tube 153. The pinion gear 142 is provided on the side of the support tube 153 facing the second semicircular groove 1512. , and the end face of the pinion gear 142 is pressed against the side of the vertical plate where the second semicircular groove 1512 is located. The first semicircular groove 1511, the second semicircular groove 1512 and the support tube 153 play a supporting role on the adjustment rod 141, and the pinion 142 is sandwiched by the vertical plate 1214 where the second semicircular groove 1512 is located and the support tube 153 to limit its movement. axial movement of the adjusting rod 141.
在一些实施例中，如图8、9所示，在第一半圆槽1511的两侧设有两个卡孔1513，在卡孔1513上设有一个压板154，压板154两边分别设有卡舌1541，卡舌1541分别***卡孔1513中形成卡接固定。这样压板154就可以将调节杆141限制在第一半圆槽1511中。通过压板154、支承筒153限制了调节杆141沿垂直自身轴向的活动自由度，而调节杆141内端与小齿轮142为紧配合，小齿轮142被限制在第二半圆槽1512及支承筒153之间，因此调节杆141轴向直线活动自由度也被限制，调节杆141只能绕自身轴线旋转运动。In some embodiments, as shown in FIGS. 8 and 9, two clamping holes 1513 are provided on both sides of the first semicircular groove 1511, and a pressing plate 154 is provided on the clamping hole 1513. The clamping tongues 1541 are respectively provided on both sides of the pressing plate 154, and the clamping tongues 1541 are respectively inserted into the clamping holes 1513 to form a clamping fixation. In this way, the pressing plate 154 can restrict the adjustment rod 141 in the first semicircular groove 1511. The adjustment rod 141 is restricted in its axial freedom by the pressing plate 154 and the supporting cylinder 153, and the inner end of the adjustment rod 141 is tightly matched with the pinion 142, and the pinion 142 is restricted between the second semicircular groove 1512 and the supporting cylinder 153, so the axial linear freedom of the adjustment rod 141 is also restricted, and the adjustment rod 141 can only rotate around its own axis.
在一些实施例中，如图8、9所示，支架15的支承部151设在光源发生器13的上方，这样便于支架15的安装和固定，同时不会增加投影仪整机的横向尺寸。当然在其他实施例中，支架15的支承部151也可以选择安装在光源发生器13的左右两侧，调节杆141、小齿轮142跟随支承部151布置，同样也能实现调焦功能。In some embodiments, as shown in FIGS. 8 and 9 , the support portion 151 of the bracket 15 is located above the light source generator 13 , which facilitates the installation and fixation of the bracket 15 without increasing the lateral size of the entire projector. Of course, in other embodiments, the supporting portion 151 of the bracket 15 can also be installed on the left and right sides of the light source generator 13 , and the adjusting rod 141 and the pinion 142 are arranged following the supporting portion 151 , and the focusing function can also be realized.
在一些实施例中，调节杆141远离小齿轮142的一端设 有一个旋转把手143。调节杆141外端设置滚花，旋转把手143与调节杆141为紧配合固定连接。在调焦时可以用多根手指按住旋转把手143并旋转即可带动调节杆141旋转。In some embodiments, an end of the adjustment rod 141 away from the pinion gear 142 is provided with There is a rotating handle 143. The outer end of the adjusting rod 141 is provided with knurling, and the rotating handle 143 and the adjusting rod 141 are tightly connected and fixedly connected. When adjusting the focus, you can use multiple fingers to hold down the rotating handle 143 and rotate it to drive the adjusting rod 141 to rotate.
如图10所示，提手槽114的侧壁上设有通孔115，调节杆141的外端从外壳11的水平内凹的提手槽114的内壁上的通孔115穿出，使得调节杆141从外壳11穿出的通孔115内藏在提手槽114内部，避免通孔115直接外露。As shown in FIG. 10 , a through hole 115 is provided on the side wall of the handle groove 114, and the outer end of the adjusting rod 141 passes through the through hole 115 on the inner wall of the horizontally concave handle groove 114 of the outer shell 11, so that the through hole 115 through which the adjusting rod 141 passes through the outer shell 11 is hidden inside the handle groove 114, avoiding direct exposure of the through hole 115.
请参阅图11，作为一种可行的实施方式，主机1内还设有驱动件17，驱动件17的输出轴与调焦齿轮1311传动连接。Please refer to FIG. 11 . As a possible implementation, the main body 1 is also provided with a driving member 17 , and the output shaft of the driving member 17 is transmission-connected to the focusing gear 1311 .
具体的，驱动件17的输出轴上设有一传动齿轮18，该传动齿轮18与调焦齿轮1311啮合。可以理解的，在其他实施例中，驱动件17的输出轴也可以通过螺杆或齿轮等其他单个或多个传动件实现与调焦齿轮1311的传动连接，再次不做限定。Specifically, the output shaft of the driving member 17 is provided with a transmission gear 18 , and the transmission gear 18 meshes with the focusing gear 1311 . It can be understood that in other embodiments, the output shaft of the driving member 17 can also be connected to the focusing gear 1311 through a screw or other single or multiple transmission members such as gears, again without limitation.
可以理解的，通过此设计使得使用者可以执行选择对光源发生器13进行手动调焦或电动调焦。It can be understood that this design allows the user to select manual focusing or electric focusing on the light source generator 13 .
进一步的，主机1内对应驱动件17设有保护盖，用于实现驱动件17的保护和固定。Furthermore, a protective cover is provided in the main machine 1 corresponding to the driving member 17 to protect and fix the driving member 17 .
与现有技术相比，本实用新型提供一种投影仪，具有以下优点：Compared with the existing technology, the utility model provides a projector, which has the following advantages:
1.本实用新型实施例提供的投影仪，包括主机、伸缩杆和底座，所述伸缩杆的一端伸入所述主机内与所述主机相连，所述伸缩杆的另一端伸入所述底座内与所述底座相连，所述底座通过所述伸缩杆支撑/吊起主机，所述主机可通过所述伸缩杆的伸缩靠近或远离所述底座，当所述伸缩杆处于收缩状态时，所述伸缩杆收纳于所述主机和所述底座中。可以理解的，通过将伸缩杆设置在底座和主机之间，使得投影仪与伸缩杆成为一体，无须额外为投影仪准备支撑杆；此外，通过将支撑杆设置为伸缩杆，并且让伸缩杆处于收缩状态时，所述伸缩杆收纳于所述主机和所述底座中，使得投影仪在不使用时可以折叠起来，更加美观，降低占用的空间，同时也便于运输。1. The projector provided by the embodiment of the present invention includes a host, a telescopic rod and a base. One end of the telescopic rod extends into the host and is connected to the host, and the other end of the telescopic rod extends into the base. Internally connected to the base, the base supports/lifts the main machine through the telescopic rod. The main machine can move closer to or away from the base through the telescopic rod. When the telescopic rod is in a contracted state, the main machine can move toward or away from the base. The telescopic rod is stored in the main machine and the base. It can be understood that by arranging the telescopic rod between the base and the host, the projector and the telescopic rod are integrated, and there is no need to prepare an additional support rod for the projector; in addition, by arranging the support rod as a telescopic rod and allowing the telescopic rod to be in In the contracted state, the telescopic rod is stored in the host and the base, so that the projector can be folded when not in use, making it more beautiful, reducing the occupied space, and making it easy to transport.
2.本实用新型实施例的主机包括外壳，所述外壳内设有内腔，所述内腔设有内置连接组件，所述伸缩杆的一端穿入 所述内腔与所述内置连接组件相连，所述伸缩杆通过所述内置连接组件与所述外壳铰接。可以理解的，的伸缩杆的一端穿入主机内与外壳铰接，从而实现了投影仪的角度调节功能，使得投影仪的可调节性及适用性更强，利于提高用户体验。2. The main machine of the embodiment of the present invention includes a shell. The shell is provided with an inner cavity. The inner cavity is provided with a built-in connecting component. One end of the telescopic rod penetrates The inner cavity is connected to the built-in connection component, and the telescopic rod is hingedly connected to the outer shell through the built-in connection component. It is understandable that one end of the telescopic rod penetrates into the host and is hinged with the casing, thereby realizing the angle adjustment function of the projector, making the projector more adjustable and applicable, and conducive to improving the user experience.
3.本实用新型实施例内置连接组件还包括压块，所述压块设于所述盖板上，所述延伸臂与所述压块铰接，所述延伸臂与所述压块的铰接处设有阻尼轴。可以理解的，压块与延伸臂的铰接出设有阻尼轴，通过阻尼轴提供的阻尼力可以让主机在调节完角度后保持该角度不变，利于提高投影仪的工作稳定性。3. The built-in connection assembly of the embodiment of the utility model further includes a pressure block, which is arranged on the cover plate, the extension arm is hinged to the pressure block, and a damping shaft is arranged at the hinge between the extension arm and the pressure block. It can be understood that the damping shaft is arranged at the hinge between the pressure block and the extension arm, and the damping force provided by the damping shaft can keep the angle unchanged after the host is adjusted, which is conducive to improving the working stability of the projector.
4.本实用新型实施例盖板上还设有遮盖筒，所述伸缩杆的一端依次穿过所述盖板和所述遮盖筒后与所述中间段相连，所述遮盖筒中空，所述遮盖筒的中空面积沿远离所述盖板的方向逐渐增大。可以理解的，通过遮盖筒来限制伸缩杆的活动范围，从而限制异形架的转动范围，避免因过渡转动而与主机内的其他结构发生干涉。4. In the embodiment of the present invention, the cover plate is also provided with a covering tube. One end of the telescopic rod passes through the cover plate and the covering tube in sequence and is connected to the middle section. The covering tube is hollow. The hollow area of the covering tube gradually increases in the direction away from the cover plate. It can be understood that the covering tube is used to limit the range of movement of the telescopic rod, thereby limiting the rotation range of the special-shaped frame and avoiding interference with other structures in the host due to excessive rotation.
5.本实用新型实施例通过采用调焦结构配合调焦齿轮来调节镜头的焦距，灵敏度更高。5. The embodiment of the utility model uses a focusing structure in conjunction with a focusing gear to adjust the focal length of the lens, resulting in higher sensitivity.
6.本实用新型实施例主机上设有提手槽，所述提手槽的内壁上设有通孔，所述调节杆远离所述小齿轮的一端从所述通孔处穿出外露。可以理解的，调节杆从提手槽内壁上的通孔处穿出，结构巧妙利于隐藏投影仪的内部结构，提高整体的美观度。6. In the embodiment of the present invention, a handle groove is provided on the main machine, and a through hole is provided on the inner wall of the handle groove. The end of the adjustment rod away from the pinion is exposed through the through hole. It is understandable that the adjustment rod passes through the through hole on the inner wall of the handle groove, and the clever structure helps hide the internal structure of the projector and improves the overall aesthetics.
7.本实用新型实施例底座上还设有内筒，所述伸缩杆远离所述主机的一端设有端环，所述伸缩杆通过所述端环与所述内筒的底面固定连接。可以理解的，通过引入端环，可以提高伸缩杆与内筒的连接稳定性，而且方便装配。7. In the embodiment of the present utility model, an inner cylinder is also provided on the base. The end of the telescopic rod away from the main machine is provided with an end ring. The telescopic rod is fixedly connected to the bottom surface of the inner cylinder through the end ring. It can be understood that by introducing the end ring, the connection stability between the telescopic rod and the inner cylinder can be improved and assembly can be facilitated.
8.本实用新型实施例伸缩杆中空设置，所述主机与所述底座通过导线实现电性连接，所述导线穿设于中空的所述伸缩杆内，所述内筒底面中间设有穿线孔，所述导线通过所述穿线孔穿过端环进入所述伸缩杆中。可以理解的，导线通过伸缩杆内进行走线，利于增强投影仪的美观度。8. In the embodiment of the present utility model, the telescopic rod is hollow, and the host and the base are electrically connected through wires. The wires are passed through the hollow telescopic rod, and a threading hole is provided in the middle of the bottom surface of the inner cylinder. , the wire passes through the end ring through the threading hole and enters the telescopic rod. It is understandable that the wires are routed through the telescopic rod, which is beneficial to enhancing the aesthetics of the projector.
以上所述仅为本实用新型的较佳实施例而已，并不用以 限制本实用新型，凡在本实用新型的原则之内所做的任何修改，等同替换和改进等均应包含本实用新型的保护范围之内。 The above descriptions are only preferred embodiments of the present invention and are not intended to To limit the scope of this utility model, any modifications, equivalent substitutions and improvements made within the principles of this utility model shall be included in the protection scope of this utility model.

Claims (15)

  1. 一种投影仪，其特征在于，包括主机、伸缩杆和底座，所述伸缩杆的一端伸入所述主机内与所述主机相连，所述伸缩杆的另一端伸入所述底座内与所述底座相连，所述底座通过所述伸缩杆支撑/吊起主机，所述主机可通过所述伸缩杆的伸缩靠近或远离所述底座，当所述伸缩杆处于收缩状态时，所述伸缩杆两端分别收纳于所述主机和所述底座中。A projector, characterized in that it includes a host, a telescopic rod and a base. One end of the telescopic rod extends into the host and is connected to the host. The other end of the telescopic rod extends into the base and is connected to the base. The base is connected, and the base supports/lifts the main machine through the telescopic rod. The main machine can be close to or away from the base through the telescopic rod. When the telescopic rod is in a contracted state, the telescopic rod Both ends are stored in the host and the base respectively.
  2. 如权利要求1所述的投影仪，其特征在于，所述主机包括外壳，所述外壳内设有内腔，所述内腔设有内置连接组件，所述伸缩杆的一端穿入所述内腔与所述内置连接组件相连，所述伸缩杆通过所述内置连接组件与所述外壳铰接。The projector according to claim 1, wherein the host computer includes a shell, an inner cavity is provided in the outer shell, a built-in connecting component is provided in the inner cavity, and one end of the telescopic rod penetrates into the inner cavity. The cavity is connected to the built-in connection component, and the telescopic rod is hingedly connected to the housing through the built-in connection component.
  3. 如权利要求2所述的投影仪，其特征在于，所述外壳包括相连的罩体和盖板，所述盖板上设有避位孔，所述内置连接组件包括异形架，所述异形架包括相连的中间段和延伸臂，所述中间段与所述延伸臂之间的夹角为直角或钝角，所述伸缩杆从所述避位孔处伸入内腔，与所述中间段活动连接或固定连接，所述延伸臂与所述盖板铰接，其铰接转轴线为伸缩杆与主机的相对旋转中心线。The projector according to claim 2, wherein the housing includes a connected cover body and a cover plate, the cover plate is provided with an escape hole, the built-in connection component includes a special-shaped frame, and the special-shaped frame It includes a connected middle section and an extension arm. The angle between the middle section and the extension arm is a right angle or an obtuse angle. The telescopic rod extends into the inner cavity from the escape hole and moves with the middle section. Connected or fixedly connected, the extension arm is hingedly connected to the cover plate, and its hinged rotation axis is the relative rotation centerline of the telescopic rod and the main machine.
  4. 如权利要求3所述的投影仪，其特征在于，所述内腔内还设有压块与阻尼轴，所述阻尼轴的两端为活动端，所述压块设于所述盖板上，所述延伸臂与所述压块分别与所述阻尼轴的一个活动端相连。The projector according to claim 3, wherein a pressure block and a damping shaft are also provided in the inner cavity, both ends of the damping shaft are movable ends, and the pressure block is provided on the cover plate. , the extension arm and the pressure block are respectively connected to a movable end of the damping shaft.
  5. 如权利要求3所述的投影仪，其特征在于，所述盖板上还设有遮盖筒，所述伸缩杆的一端依次穿过所述盖板和所述遮盖筒后与所述中间段相连，所述遮盖筒中空，所述遮盖筒的中空面积沿远离所述盖板的方向逐渐增大。The projector as described in claim 3 is characterized in that a covering tube is also provided on the cover plate, one end of the telescopic rod passes through the cover plate and the covering tube in sequence and is connected to the middle section, the covering tube is hollow, and the hollow area of the covering tube gradually increases in the direction away from the cover plate.
  6. 如权利要求1所述的投影仪，其特征在于，所述主机或所述底座一者上设有提手槽，另一者上设有下压槽；所述提手槽设于所述主机或所述底座的外侧壁上，所述下压槽设于所述主机靠近所述底座的一面或所述底座靠近所述主机的一面。The projector according to claim 1, wherein one of the main unit or the base is provided with a handle slot, and the other is provided with a depression slot; the handle slot is provided on the main unit. Or on the outer side wall of the base, the depression groove is provided on a side of the main frame close to the base or a side of the base close to the main frame.
  7. 如权利要求1所述的投影仪，其特征在于，所述主机内还设有光源发生器，所述光源发生器上设有镜头，所述镜头上设有调焦齿轮，通过转动所述调焦齿轮带动所述镜头转动，从而实现调节镜头内部透镜的位置；所述主机上还设有调焦结构，所述调焦结构包括相连的调节杆和小齿轮，所述调节杆的一端与所述小齿轮相连，所述小齿轮与所述调焦齿轮啮合，所述小齿轮的齿数小于所述调焦齿轮的齿数。 The projector according to claim 1, wherein the host is further provided with a light source generator, a lens is provided on the light source generator, and a focusing gear is provided on the lens. The focusing gear drives the lens to rotate, thereby adjusting the position of the lens inside the lens; the main unit is also provided with a focusing structure, which includes a connected adjusting rod and a pinion. One end of the adjusting rod is connected to the The pinion gear is connected, the pinion gear meshes with the focusing gear, and the number of teeth of the pinion gear is smaller than the number of teeth of the focusing gear.
  8. 如权利要求7所述的投影仪，其特征在于，所述主机内还设有驱动件，所述驱动件的输出轴与所述调焦齿轮传动连接。The projector according to claim 7, characterized in that the main body is further provided with a driving member, and the output shaft of the driving member is transmission connected with the focusing gear.
  9. 如权利要求7所述的投影仪，其特征在于，所述调节杆远离所述小齿轮的一端设有旋转把手。The projector according to claim 7, wherein a rotating handle is provided at an end of the adjusting lever away from the pinion gear.
  10. 如权利要求7所述的投影仪，其特征在于，所述主机上设有提手槽，所述提手槽的内壁上设有通孔，所述调节杆远离所述小齿轮的一端从所述通孔处穿出外露于主机。The projector according to claim 7, wherein the main unit is provided with a handle slot, an inner wall of the handle slot is provided with a through hole, and an end of the adjustment rod away from the pinion is connected from the The through hole is exposed to the host.
  11. 如权利要求7所述的投影仪，其特征在于，所述底座上还设有内筒，所述伸缩杆远离所述主机的一端设有端环，所述伸缩杆通过所述端环与所述内筒的底面固定连接。The projector of claim 7, wherein the base is further provided with an inner tube, and an end ring of the telescopic rod away from the host is provided, and the telescopic rod is connected to the end ring through the end ring. The bottom surface of the inner cylinder is fixedly connected.
  12. 如权利要求11所述的投影仪，其特征在于，所述伸缩杆中空设置，所述主机与所述底座通过导线实现电性连接，所述导线穿设于中空的所述伸缩杆内，所述内筒底面中间设有穿线孔，所述导线通过所述穿线孔穿过端环进入所述伸缩杆中。The projector of claim 11, wherein the telescopic rod is hollow, the host and the base are electrically connected through wires, and the wires are passed through the hollow telescopic rod. A threading hole is provided in the middle of the bottom surface of the inner cylinder, and the wire passes through the end ring through the threading hole and enters the telescopic rod.
  13. 如权利要求12所述的投影仪，其特征在于，所述主机内还设有支架，所述支架包括相连并垂直固定的支承部和固连部，支承部上依次设置有同轴的第一半圆槽、第二半圆槽及支承筒，所述调节杆分别置入所述第一半圆槽与所述第二半圆槽，且所述调节杆的内端贯穿所述支承筒，所述小齿轮设于所述支承筒朝向所述第二半圆槽的一侧，且所述小齿轮端面抵顶在所述第二半圆槽的侧面上。The projector of claim 12, wherein the host is further provided with a bracket, the bracket includes a supporting portion and a fixed portion that are connected and vertically fixed, and the supporting portion is sequentially provided with a coaxial first Semi-circular groove, second semi-circular groove and support tube, the adjusting rod is placed in the first semi-circular groove and the second semi-circular groove respectively, and the inner end of the adjusting rod penetrates the supporting tube, and the pinion gear It is disposed on the side of the support tube facing the second semicircular groove, and the end surface of the pinion gear abuts against the side surface of the second semicircular groove.
  14. 如权利要求13所述的投影仪，其特征在于，所述第一半圆槽的两侧设有两个卡孔，在所述卡孔上设有压板，所述压板两侧分别设有卡舌，所述卡舌分别***所述卡孔中形成卡接固定。The projector as described in claim 13 is characterized in that two clamping holes are provided on both sides of the first semicircular groove, a pressure plate is provided on the clamping hole, and clamping tongues are respectively provided on both sides of the pressure plate, and the clamping tongues are respectively inserted into the clamping holes to form a clamping fixation.
  15. 如权利要求12所述的投影仪，其特征在于，所述底座内间隔设有扬声器，所述扬声器通过所述伸缩杆内的导线与所述主机电性连接；所述底座内间隔设有配重块，所述配重块与所述扬声器间隔设置。 The projector as described in claim 12 is characterized in that a speaker is provided at intervals in the base, and the speaker is electrically connected to the host through a wire in the telescopic rod; a counterweight block is provided at intervals in the base, and the counterweight block is spaced apart from the speaker.
PCT/CN2023/110629 2022-09-19 2023-08-01 Projector WO2024060848A1 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
CN202222483356.8 2022-09-19
CN202222483356 2022-09-19
CN202222483348.3 2022-09-19
CN202222483348 2022-09-19
CN202222538589.3 2022-09-22
CN202222519399.7 2022-09-22
CN202222519399 2022-09-22
CN202222538589 2022-09-22

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WO (1) WO2024060848A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104822037A (en) * 2014-01-30 2015-08-05 德思来科技有限公司 Nested projector with built-in electric cantilever
CN205068833U (en) * 2015-10-13 2016-03-02 新余学院 English teaching device
CN108843934A (en) * 2018-08-21 2018-11-20 成都捷科菲友信息技术有限公司 A kind of support of electronic product
CN215341456U (en) * 2021-07-16 2021-12-28 北京华医网科技股份有限公司 Projector for online education
CN216431173U (en) * 2021-12-14 2022-05-03 深圳市科金明电子股份有限公司 Projecting apparatus furred ceiling support
CN216647073U (en) * 2022-02-12 2022-05-31 深圳市萌新传媒有限公司 Projector

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104822037A (en) * 2014-01-30 2015-08-05 德思来科技有限公司 Nested projector with built-in electric cantilever
CN205068833U (en) * 2015-10-13 2016-03-02 新余学院 English teaching device
CN108843934A (en) * 2018-08-21 2018-11-20 成都捷科菲友信息技术有限公司 A kind of support of electronic product
CN215341456U (en) * 2021-07-16 2021-12-28 北京华医网科技股份有限公司 Projector for online education
CN216431173U (en) * 2021-12-14 2022-05-03 深圳市科金明电子股份有限公司 Projecting apparatus furred ceiling support
CN216647073U (en) * 2022-02-12 2022-05-31 深圳市萌新传媒有限公司 Projector

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