CN112711167A - Projection equipment with angle-adjustable optical machine - Google Patents
Projection equipment with angle-adjustable optical machine Download PDFInfo
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- CN112711167A CN112711167A CN202011634295.XA CN202011634295A CN112711167A CN 112711167 A CN112711167 A CN 112711167A CN 202011634295 A CN202011634295 A CN 202011634295A CN 112711167 A CN112711167 A CN 112711167A
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- optical machine
- mechanical
- box shell
- machine box
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/142—Adjusting of projection optics
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/145—Housing details, e.g. position adjustments thereof
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
Abstract
The invention discloses projection equipment with an adjustable angle of an optical machine, which belongs to the technical field of projection and comprises an optical machine box, a supporting frame and two damping rotating shafts; the optical-mechanical box comprises an optical-mechanical box shell, an optical-mechanical assembly and a projection lens; an optical-mechanical assembly is arranged in the optical-mechanical box shell, and a projection lens connected with the optical-mechanical assembly is exposed on the optical-mechanical box shell; the optical machine box shell is supported between the side walls of the two sides of the supporting frame through two damping rotating shafts; the damping rotating shaft is used for providing damping force for the deflection of the light box shell relative to the supporting frame. The projection equipment with the adjustable angle of the optical machine can adjust the projection angle in the vertical direction according to the use requirements of different scenes of a user, and has the advantages of wide angle adjustment range, compact structure and good stability.
Description
Technical Field
The invention belongs to the technical field of projection, and particularly relates to projection equipment with an adjustable angle of an optical machine.
Background
In order to meet the use requirements of users in different scenes, the current intelligent projector needs to have a function of adjusting the projection angle in the up-down direction. The whole angle of the whole projector is changed by manually adjusting an adjusting screw at the bottom of the whole projector or by remotely controlling a rotating shaft through a built-in motor. The former can influence the complete machine balance, and adjustment inefficiency is difficult once only to adjust to suitable angle moreover, and the projection angle scope also can receive the restriction of bottom sprag length, and the projection angle scope is too little. The latter requires a large structural space, is high in cost, increases a driving structure, and increases the overall failure rate of the projection device.
Disclosure of Invention
The invention aims to provide a projection device with an adjustable angle of an optical machine aiming at the defects, and solves the problems of small projection angle adjustment range, low adjustment efficiency, instability after adjustment, complex adjustment structure, incompact structure, high cost and the like of the conventional projection device. In order to achieve the purpose, the invention provides the following technical scheme:
a projection device with an adjustable optical machine angle comprises an optical machine box 1, a supporting frame 2 and two damping rotating shafts 3; the optical machine box 1 comprises an optical machine box shell, an optical machine component and a projection lens; an optical-mechanical assembly is arranged in the optical-mechanical box shell, and a projection lens connected with the optical-mechanical assembly is exposed on the optical-mechanical box shell; the optical case shell is supported between the side walls of the two sides of the supporting frame 2 through two damping rotating shafts 3; the damping spindle 3 serves to provide a damping force for the deflection of the housing of the light box relative to the support frame 2. As can be seen from the above structure, the support frame 2 includes a lower portion, an upper portion and two sidewalls; the two sides of the lower part and the upper part are connected through two side walls, so that a hollow space is formed on the support frame 2 and is used for placing the optical machine box 1; the ray apparatus box shell supports between the both sides lateral wall of carriage 2 through two damping pivot 3, and the left side of ray apparatus box shell connects the left side wall of carriage 2 through a damping pivot 3, and the right side of ray apparatus box shell connects the right side wall of carriage 2 through a damping pivot 3. The optical case shell rotates by an axis formed by the straight lines of the two damping rotating shafts 3. The damping rotating shaft 3 is used for providing damping force for the deflection of the optical box shell relative to the supporting frame 2, so that the optical box 1 can be manually rotated to deflect in a range of almost 360 degrees relative to the supporting frame 2, and the damping force is enough to ensure that the optical box 1 can stably stay at any angle in the deflection range, so that the projection angle of the projection equipment can not be supported by the bottom of the traditional projection equipment, the projection can be performed in a large-angle range, the manual adjustment is very convenient according to the projection requirement, the adjustment can be successfully performed at one time, devices such as a motor and the like are not needed, the cost is saved, the structure is compact, and the reliability is higher. The support frame 2 also plays a certain role in protecting the light box 1. An optical machine assembly is arranged in the optical machine box shell and comprises an optical machine, a driving circuit and the like, wherein the optical machine is a DLP optical machine, a projection lens connected with the optical machine assembly is exposed on the optical machine box shell, and the optical machine assembly and the projection lens are conventional core devices of projection equipment and are used for digitally processing image signals and projecting light; the optical box 1 deflects relative to the support frame 2, so that the projection direction of the light beam of the projection lens is changed.
Further, the optical case 1 further includes a heat dissipation assembly; the heat dissipation assembly is arranged in the optical machine box shell and used for dissipating heat of the optical machine assembly. According to the structure, the heat dissipation assembly is a conventional heat dissipation structure such as a heat dissipation fin, a heat absorption piece, a heat conduction pipe and the like, mainly dissipates heat of parts such as a color wheel, a DMD chip, a light source and the like of the optical-mechanical assembly, and is arranged in the optical-mechanical box shell so as to accelerate heat dissipation of the optical-mechanical assembly.
Further, the optical case 1 further includes a heat dissipation fan; the heat dissipation fan is used for generating air flow in the optical case 1. With the structure, the heat dissipation fan is used for generating air flow in the optical machine box 1 and dissipating heat in the optical machine box 1, particularly heat of the heat dissipation assembly and the optical machine assembly.
Further, the lower part of the supporting frame 2 is provided with an accommodating space; a sound box is arranged in the accommodating space. By the structure, the heavier loudspeaker box is arranged at the lower part of the support frame 2 to form an accommodating space, so that the stability of the support frame 2 is improved. In order to improve the sound effect, the sound box is not convenient to rotate along with the optical case 1.
Furthermore, a main board is arranged in the accommodating space; the mainboard is electrically connected with the optical-mechanical assembly. According to the structure, the mainboard is electrically connected with the optical mechanical component, specifically, the mainboard is electrically connected with the drive circuit of the optical mechanical component, and the mainboard controls and monitors the optical mechanical component.
Further, a first communication port communicated with the interior of the optical machine box shell is arranged on the optical machine box shell; the lower part of the supporting frame 2 is provided with a second communication port communicated with the accommodating space; a hose 4 is arranged between the first communicating port and the second communicating port; and a wire harness for connecting the main board and the optical-mechanical assembly is arranged in the hose 4. According to the structure, the two ends of the hose 4 are respectively communicated with the inner space of the optical machine box 1 and the accommodating space of the lower part of the supporting frame 2, so that the devices in the two spaces can be provided with wiring for establishing connection, for example, wiring harnesses for connecting a main board and an optical machine assembly are arranged in the hose 4. The hose 4 can be telescopic or can be extended with a margin so that it does not hinder the deflection of the light box 1. Preferably, a corrugated pipe is adopted, so that the flexible movement of the hose 4 does not influence the communication aperture of the hose 4.
Further, an air outlet communicated with the inside of the optical machine box shell is formed in the optical machine box shell; the lower part of the supporting frame 2 is provided with an air inlet communicated with the accommodating space; the heat radiation fan is used for generating air flow entering from the air inlet and exiting from the air outlet. By the structure, the heat radiation fan is used for generating air flow entering from the air inlet and exiting from the air outlet, so that the inner space of the optical machine box 1 and the accommodating space of the lower part of the supporting frame 2 can both be radiated.
Further, the damping rotating shaft 3 comprises a bolt 5, a nut 6, an elastic sheet 7, a fixed seat 8 and a rotating drum 9; the left end of the rotary drum 9 is fixed to the camera box shell; a pressing plate 10 is arranged at the right end of the rotary drum 9; a fixed seat 8 is arranged on the right side of the pressure plate; the fixed seat 8 is fixed on one side wall of the support frame 2; the bolt 5 penetrates through the fixed seat 8, the pressing plate and the elastic sheet 7; a nut 6 is screwed on the threaded column of the bolt 5; the nut 6 is screwed to enable the fixing seat 8, the pressing plate and the elastic sheet 7 which are positioned between the nut 6 and the head of the bolt 5 to be pressed together. According to the structure, the rotary drum 9 rotates along with the axle center of the bolt 5 synchronously along with the optical machine box shell, and the extrusion degree of the fixing seat 8, the pressing plate and the elastic sheet 7 is realized by adjusting the distance between the heads of the nut 6 and the bolt 5, so that the damping force is changed. When the damping force needs to be increased a little, the nut 6 is screwed, the compression deformation of the elastic sheet 7 is larger, the larger the force of the elastic sheet 7 pressing the pressing plate 10 on the fixed seat 8 is, the larger the damping force generated by the damping rotating shaft 3 is; when the damping force needs to be reduced a little, the nut 6 is unscrewed, the compression deformation of the elastic sheet 7 is smaller, the smaller the force of the elastic sheet 7 pressing the pressing plate 10 on the fixed seat 8 is, the smaller the damping force generated by the damping rotating shaft 3 is; the requirements for different damping forces are met.
Further, the nut 6 and the elastic sheet 7 are positioned in the rotary drum 9, and a gap exists between the nut 6 and the elastic sheet 7 and the inner wall of the rotary drum 9. According to the structure, the nut 6 and the elastic sheet 7 have gaps with the inner wall of the rotary drum 9, so that the rotary drum 9 cannot interfere with the nut 6 and the elastic sheet 7 when rotating. The spring 7 may be a spring, an elastic tube with axial compression, a rubber tube, or the like. A gasket can be additionally arranged between the nut 6 and the elastic sheet 7, so that the elastic sheet 7 is prevented from driving the nut 6 to be loosened.
Further, mounting grooves corresponding to the damping rotating shafts 3 one to one are formed in two sides of the optical machine box shell; a plane notch 11 is formed in one end, far away from the fixed seat 8, of the rotary drum 9; one end of the rotary drum 9 provided with the plane gap 11 is inserted into the corresponding mounting groove. According to the structure, the end, far away from the fixed seat 8, of the rotary drum 9 is provided with the plane notch 11, so that the end, far away from the fixed seat 8, of the rotary drum 9 is square, and the effect that the shell of the light box and the rotary drum 9 rotate synchronously can be achieved. When the optical machine box shell is installed, the two side walls of the supporting frame 2 only need to be slightly and outwards broken, the mounting grooves in the two sides of the optical machine box shell are aligned to the two damping rotating shafts 3, the two side walls of the supporting frame 2 are loosened, and the two damping rotating shafts 3 are inserted into the mounting grooves in a one-to-one correspondence mode.
The invention has the beneficial effects that:
the invention discloses projection equipment with an adjustable angle of an optical machine, which belongs to the technical field of projection and comprises an optical machine box, a supporting frame and two damping rotating shafts; the optical-mechanical box comprises an optical-mechanical box shell, an optical-mechanical assembly and a projection lens; an optical-mechanical assembly is arranged in the optical-mechanical box shell, and a projection lens connected with the optical-mechanical assembly is exposed on the optical-mechanical box shell; the optical machine box shell is supported between the side walls of the two sides of the supporting frame through two damping rotating shafts; the damping rotating shaft is used for providing damping force for the deflection of the light box shell relative to the supporting frame. The projection equipment with the adjustable angle of the optical machine can adjust the projection angle in the vertical direction according to the use requirements of different scenes of a user, and has the advantages of wide angle adjustment range, compact structure and good stability.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a projection apparatus according to the present invention;
FIG. 2 is a schematic view of the damping spindle structure of the present invention;
in the drawings: 1-optical machine box, 2-support frame, 3-damping rotating shaft, 4-hose, 5-bolt, 6-nut, 7-elastic sheet, 8-fixing seat, 9-rotating drum, 10-pressing plate and 11-plane gap.
Detailed Description
The present invention will be described in further detail below with reference to the drawings and the embodiments, but the present invention is not limited to the following examples.
The first embodiment is as follows:
see figures 1-2. A projection device with an adjustable optical machine angle comprises an optical machine box 1, a supporting frame 2 and two damping rotating shafts 3; the optical machine box 1 comprises an optical machine box shell, an optical machine component and a projection lens; an optical-mechanical assembly is arranged in the optical-mechanical box shell, and a projection lens connected with the optical-mechanical assembly is exposed on the optical-mechanical box shell; the optical case shell is supported between the side walls of the two sides of the supporting frame 2 through two damping rotating shafts 3; the damping spindle 3 serves to provide a damping force for the deflection of the housing of the light box relative to the support frame 2. As can be seen from the above structure, the support frame 2 includes a lower portion, an upper portion and two sidewalls; the two sides of the lower part and the upper part are connected through two side walls, so that a hollow space is formed on the support frame 2 and is used for placing the optical machine box 1; the ray apparatus box shell supports between the both sides lateral wall of carriage 2 through two damping pivot 3, and the left side of ray apparatus box shell connects the left side wall of carriage 2 through a damping pivot 3, and the right side of ray apparatus box shell connects the right side wall of carriage 2 through a damping pivot 3. The optical case shell rotates by an axis formed by the straight lines of the two damping rotating shafts 3. The damping rotating shaft 3 is used for providing damping force for the deflection of the optical box shell relative to the supporting frame 2, so that the optical box 1 can be manually rotated to deflect in a range of almost 360 degrees relative to the supporting frame 2, and the damping force is enough to ensure that the optical box 1 can stably stay at any angle in the deflection range, so that the projection angle of the projection equipment can not be supported by the bottom of the traditional projection equipment, the projection can be performed in a large-angle range, the manual adjustment is very convenient according to the projection requirement, the adjustment can be successfully performed at one time, devices such as a motor and the like are not needed, the cost is saved, the structure is compact, and the reliability is higher. The support frame 2 also plays a certain role in protecting the light box 1. An optical machine assembly is arranged in the optical machine box shell and comprises an optical machine, a driving circuit and the like, wherein the optical machine is a DLP optical machine, a projection lens connected with the optical machine assembly is exposed on the optical machine box shell, and the optical machine assembly and the projection lens are conventional core devices of projection equipment and are used for digitally processing image signals and projecting light; the optical box 1 deflects relative to the support frame 2, so that the projection direction of the light beam of the projection lens is changed.
Example two:
see figures 1-2. A projection device with an adjustable optical machine angle comprises an optical machine box 1, a supporting frame 2 and two damping rotating shafts 3; the optical machine box 1 comprises an optical machine box shell, an optical machine component and a projection lens; an optical-mechanical assembly is arranged in the optical-mechanical box shell, and a projection lens connected with the optical-mechanical assembly is exposed on the optical-mechanical box shell; the optical case shell is supported between the side walls of the two sides of the supporting frame 2 through two damping rotating shafts 3; the damping spindle 3 serves to provide a damping force for the deflection of the housing of the light box relative to the support frame 2. As can be seen from the above structure, the support frame 2 includes a lower portion, an upper portion and two sidewalls; the two sides of the lower part and the upper part are connected through two side walls, so that a hollow space is formed on the support frame 2 and is used for placing the optical machine box 1; the ray apparatus box shell supports between the both sides lateral wall of carriage 2 through two damping pivot 3, and the left side of ray apparatus box shell connects the left side wall of carriage 2 through a damping pivot 3, and the right side of ray apparatus box shell connects the right side wall of carriage 2 through a damping pivot 3. The optical case shell rotates by an axis formed by the straight lines of the two damping rotating shafts 3. The damping rotating shaft 3 is used for providing damping force for the deflection of the optical box shell relative to the supporting frame 2, so that the optical box 1 can be manually rotated to deflect in a range of almost 360 degrees relative to the supporting frame 2, and the damping force is enough to ensure that the optical box 1 can stably stay at any angle in the deflection range, so that the projection angle of the projection equipment can not be supported by the bottom of the traditional projection equipment, the projection can be performed in a large-angle range, the manual adjustment is very convenient according to the projection requirement, the adjustment can be successfully performed at one time, devices such as a motor and the like are not needed, the cost is saved, the structure is compact, and the reliability is higher. The support frame 2 also plays a certain role in protecting the light box 1. An optical machine assembly is arranged in the optical machine box shell and comprises an optical machine, a driving circuit and the like, wherein the optical machine is a DLP optical machine, a projection lens connected with the optical machine assembly is exposed on the optical machine box shell, and the optical machine assembly and the projection lens are conventional core devices of projection equipment and are used for digitally processing image signals and projecting light; the optical box 1 deflects relative to the support frame 2, so that the projection direction of the light beam of the projection lens is changed.
The optical machine box 1 further comprises a heat dissipation assembly; the heat dissipation assembly is arranged in the optical machine box shell and used for dissipating heat of the optical machine assembly. According to the structure, the heat dissipation assembly is a conventional heat dissipation structure such as a heat dissipation fin, a heat absorption piece, a heat conduction pipe and the like, mainly dissipates heat of parts such as a color wheel, a DMD chip, a light source and the like of the optical-mechanical assembly, and is arranged in the optical-mechanical box shell so as to accelerate heat dissipation of the optical-mechanical assembly.
Example three:
see figures 1-2. A projection device with an adjustable optical machine angle comprises an optical machine box 1, a supporting frame 2 and two damping rotating shafts 3; the optical machine box 1 comprises an optical machine box shell, an optical machine component and a projection lens; an optical-mechanical assembly is arranged in the optical-mechanical box shell, and a projection lens connected with the optical-mechanical assembly is exposed on the optical-mechanical box shell; the optical case shell is supported between the side walls of the two sides of the supporting frame 2 through two damping rotating shafts 3; the damping spindle 3 serves to provide a damping force for the deflection of the housing of the light box relative to the support frame 2. As can be seen from the above structure, the support frame 2 includes a lower portion, an upper portion and two sidewalls; the two sides of the lower part and the upper part are connected through two side walls, so that a hollow space is formed on the support frame 2 and is used for placing the optical machine box 1; the ray apparatus box shell supports between the both sides lateral wall of carriage 2 through two damping pivot 3, and the left side of ray apparatus box shell connects the left side wall of carriage 2 through a damping pivot 3, and the right side of ray apparatus box shell connects the right side wall of carriage 2 through a damping pivot 3. The optical case shell rotates by an axis formed by the straight lines of the two damping rotating shafts 3. The damping rotating shaft 3 is used for providing damping force for the deflection of the optical box shell relative to the supporting frame 2, so that the optical box 1 can be manually rotated to deflect in a range of almost 360 degrees relative to the supporting frame 2, and the damping force is enough to ensure that the optical box 1 can stably stay at any angle in the deflection range, so that the projection angle of the projection equipment can not be supported by the bottom of the traditional projection equipment, the projection can be performed in a large-angle range, the manual adjustment is very convenient according to the projection requirement, the adjustment can be successfully performed at one time, devices such as a motor and the like are not needed, the cost is saved, the structure is compact, and the reliability is higher. The support frame 2 also plays a certain role in protecting the light box 1. An optical machine assembly is arranged in the optical machine box shell and comprises an optical machine, a driving circuit and the like, wherein the optical machine is a DLP optical machine, a projection lens connected with the optical machine assembly is exposed on the optical machine box shell, and the optical machine assembly and the projection lens are conventional core devices of projection equipment and are used for digitally processing image signals and projecting light; the optical box 1 deflects relative to the support frame 2, so that the projection direction of the light beam of the projection lens is changed.
The optical machine box 1 further comprises a heat dissipation assembly; the heat dissipation assembly is arranged in the optical machine box shell and used for dissipating heat of the optical machine assembly. According to the structure, the heat dissipation assembly is a conventional heat dissipation structure such as a heat dissipation fin, a heat absorption piece, a heat conduction pipe and the like, mainly dissipates heat of parts such as a color wheel, a DMD chip, a light source and the like of the optical-mechanical assembly, and is arranged in the optical-mechanical box shell so as to accelerate heat dissipation of the optical-mechanical assembly.
The optical machine box 1 further comprises a heat radiation fan; the heat dissipation fan is used for generating air flow in the optical case 1. With the structure, the heat dissipation fan is used for generating air flow in the optical machine box 1 and dissipating heat in the optical machine box 1, particularly heat of the heat dissipation assembly and the optical machine assembly.
The lower part of the supporting frame 2 is provided with an accommodating space; a sound box is arranged in the accommodating space. By the structure, the heavier loudspeaker box is arranged at the lower part of the support frame 2 to form an accommodating space, so that the stability of the support frame 2 is improved. In order to improve the sound effect, the sound box is not convenient to rotate along with the optical case 1.
A main board is also arranged in the accommodating space; the mainboard is electrically connected with the optical-mechanical assembly. According to the structure, the mainboard is electrically connected with the optical mechanical component, specifically, the mainboard is electrically connected with the drive circuit of the optical mechanical component, and the mainboard controls and monitors the optical mechanical component.
The optical machine box shell is provided with a first communication port communicated with the inside of the optical machine box shell; the lower part of the supporting frame 2 is provided with a second communication port communicated with the accommodating space; a hose 4 is arranged between the first communicating port and the second communicating port; and a wire harness for connecting the main board and the optical-mechanical assembly is arranged in the hose 4. According to the structure, the two ends of the hose 4 are respectively communicated with the inner space of the optical machine box 1 and the accommodating space of the lower part of the supporting frame 2, so that the devices in the two spaces can be provided with wiring for establishing connection, for example, wiring harnesses for connecting a main board and an optical machine assembly are arranged in the hose 4. The hose 4 can be telescopic or can be extended with a margin so that it does not hinder the deflection of the light box 1. Preferably, a corrugated pipe is adopted, so that the flexible movement of the hose 4 does not influence the communication aperture of the hose 4.
The optical machine box shell is provided with an air outlet communicated with the inside of the optical machine box shell; the lower part of the supporting frame 2 is provided with an air inlet communicated with the accommodating space; the heat radiation fan is used for generating air flow entering from the air inlet and exiting from the air outlet. By the structure, the heat radiation fan is used for generating air flow entering from the air inlet and exiting from the air outlet, so that the inner space of the optical machine box 1 and the accommodating space of the lower part of the supporting frame 2 can both be radiated.
The damping rotating shaft 3 comprises a bolt 5, a nut 6, an elastic sheet 7, a fixed seat 8 and a rotating drum 9; the left end of the rotary drum 9 is fixed to the camera box shell; a pressing plate 10 is arranged at the right end of the rotary drum 9; a fixed seat 8 is arranged on the right side of the pressure plate; the fixed seat 8 is fixed on one side wall of the support frame 2; the bolt 5 penetrates through the fixed seat 8, the pressing plate and the elastic sheet 7; a nut 6 is screwed on the threaded column of the bolt 5; the nut 6 is screwed to enable the fixing seat 8, the pressing plate and the elastic sheet 7 which are positioned between the nut 6 and the head of the bolt 5 to be pressed together. According to the structure, the rotary drum 9 rotates along with the axle center of the bolt 5 synchronously along with the optical machine box shell, and the extrusion degree of the fixing seat 8, the pressing plate and the elastic sheet 7 is realized by adjusting the distance between the heads of the nut 6 and the bolt 5, so that the damping force is changed. When the damping force needs to be increased a little, the nut 6 is screwed, the compression deformation of the elastic sheet 7 is larger, the larger the force of the elastic sheet 7 pressing the pressing plate 10 on the fixed seat 8 is, the larger the damping force generated by the damping rotating shaft 3 is; when the damping force needs to be reduced a little, the nut 6 is unscrewed, the compression deformation of the elastic sheet 7 is smaller, the smaller the force of the elastic sheet 7 pressing the pressing plate 10 on the fixed seat 8 is, the smaller the damping force generated by the damping rotating shaft 3 is; the requirements for different damping forces are met.
The nut 6 and the elastic sheet 7 are positioned in the rotary drum 9, and gaps exist between the nut 6 and the elastic sheet 7 and the inner wall of the rotary drum 9. According to the structure, the nut 6 and the elastic sheet 7 have gaps with the inner wall of the rotary drum 9, so that the rotary drum 9 cannot interfere with the nut 6 and the elastic sheet 7 when rotating. The spring 7 may be a spring, an elastic tube with axial compression, a rubber tube, or the like. A gasket can be additionally arranged between the nut 6 and the elastic sheet 7, so that the elastic sheet 7 is prevented from driving the nut 6 to be loosened.
Mounting grooves which correspond to the damping rotating shafts 3 one by one are formed in two sides of the shell of the optical machine box; a plane notch 11 is formed in one end, far away from the fixed seat 8, of the rotary drum 9; one end of the rotary drum 9 provided with the plane gap 11 is inserted into the corresponding mounting groove. According to the structure, the end, far away from the fixed seat 8, of the rotary drum 9 is provided with the plane notch 11, so that the end, far away from the fixed seat 8, of the rotary drum 9 is square, and the effect that the shell of the light box and the rotary drum 9 rotate synchronously can be achieved. When the optical machine box shell is installed, the two side walls of the supporting frame 2 only need to be slightly and outwards broken, the mounting grooves in the two sides of the optical machine box shell are aligned to the two damping rotating shafts 3, the two side walls of the supporting frame 2 are loosened, and the two damping rotating shafts 3 are inserted into the mounting grooves in a one-to-one correspondence mode.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a ray apparatus angularly adjustable projection equipment which characterized in that: comprises a light machine box (1), a supporting frame (2) and two damping rotating shafts (3); the optical machine box (1) comprises an optical machine box shell, an optical machine assembly and a projection lens; an optical-mechanical assembly is arranged in the optical-mechanical box shell, and a projection lens connected with the optical-mechanical assembly is exposed on the optical-mechanical box shell; the optical case shell is supported between the side walls of the two sides of the supporting frame (2) through two damping rotating shafts (3); the damping rotating shaft (3) is used for providing damping force for the deflection of the shell of the light machine box relative to the supporting frame (2).
2. The optical-mechanical angle-adjustable projection device of claim 1, wherein: the optical machine box (1) further comprises a heat dissipation assembly; the heat dissipation assembly is arranged in the optical machine box shell and used for dissipating heat of the optical machine assembly.
3. The optical-mechanical angle adjustable projection device of claim 2, wherein: the optical machine box (1) also comprises a heat radiation fan; the heat dissipation fan is used for generating air flow in the optical machine box (1).
4. The optical-mechanical angle adjustable projection device of claim 3, wherein: the lower part of the supporting frame (2) is provided with an accommodating space; a sound box is arranged in the accommodating space.
5. The optical-mechanical angle adjustable projection device of claim 4, wherein: a main board is also arranged in the accommodating space; the mainboard is electrically connected with the optical-mechanical assembly.
6. The optical-mechanical angle adjustable projection device of claim 5, wherein: the optical machine box shell is provided with a first communication port communicated with the inside of the optical machine box shell; the lower part of the supporting frame (2) is provided with a second communication port communicated with the accommodating space; a hose (4) is arranged between the first communicating port and the second communicating port; and a wire harness for connecting the main board and the optical-mechanical assembly is arranged in the hose (4).
7. The optical-mechanical angle adjustable projection device of claim 6, wherein: the optical machine box shell is provided with an air outlet communicated with the inside of the optical machine box shell; the lower part of the supporting frame (2) is provided with an air inlet communicated with the accommodating space; the heat radiation fan is used for generating air flow entering from the air inlet and exiting from the air outlet.
8. The optical-mechanical angle-adjustable projection device of claim 1, wherein: the damping rotating shaft (3) comprises a bolt (5), a nut (6), an elastic sheet (7), a fixed seat (8) and a rotating drum (9); the left end of the rotary drum (9) is fixed to the shell of the camera box; a pressing plate (10) is arranged at the right end of the rotary drum (9); a fixed seat (8) is arranged on the right side of the pressure plate; the fixed seat (8) is fixed on one side wall of the support frame (2); the bolt (5) penetrates through the fixed seat (8), the pressing plate and the elastic sheet (7); a nut (6) is screwed on the threaded column of the bolt (5); the nut (6) is screwed to enable the fixing seat (8), the pressing plate and the elastic sheet (7) which are positioned between the nut (6) and the head of the bolt (5) to be pressed together.
9. The optical-mechanical angle adjustable projection device of claim 8, wherein: the nut (6) and the elastic sheet (7) are positioned in the rotary drum (9), and gaps exist between the nut (6) and the elastic sheet (7) and the inner wall of the rotary drum (9).
10. The optical-mechanical angle adjustable projection device of claim 8, wherein: mounting grooves which correspond to the damping rotating shafts (3) one by one are formed in two sides of the optical machine box shell; a plane notch (11) is formed in one end, far away from the fixed seat (8), of the rotary drum (9); one end of the rotary drum (9) provided with the plane gap (11) is inserted into the corresponding mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011634295.XA CN112711167A (en) | 2020-12-31 | 2020-12-31 | Projection equipment with angle-adjustable optical machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011634295.XA CN112711167A (en) | 2020-12-31 | 2020-12-31 | Projection equipment with angle-adjustable optical machine |
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| CN112711167A true CN112711167A (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011634295.XA Pending CN112711167A (en) | 2020-12-31 | 2020-12-31 | Projection equipment with angle-adjustable optical machine |
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| CN104866013A (en) * | 2014-02-24 | 2015-08-26 | 联想(北京)有限公司 | Electronic equipment |
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| CN211123600U (en) * | 2019-12-31 | 2020-07-28 | 深圳市群科电子有限公司 | Portable projector |
| CN211478847U (en) * | 2020-03-26 | 2020-09-11 | 无锡视美乐激光显示科技有限公司 | Portable projector |
| CN211789802U (en) * | 2019-11-25 | 2020-10-27 | 咸阳师范学院 | Protective device for external wiring harness of computer |
| CN211787611U (en) * | 2020-02-28 | 2020-10-27 | 湖南有色金属职业技术学院 | Multimedia device |
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- 2020-12-31 CN CN202011634295.XA patent/CN112711167A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104866013A (en) * | 2014-02-24 | 2015-08-26 | 联想(北京)有限公司 | Electronic equipment |
| CN205005151U (en) * | 2015-10-28 | 2016-01-27 | 四川长虹电子系统有限公司 | Rotational damping mechanism with adjustable |
| CN211789802U (en) * | 2019-11-25 | 2020-10-27 | 咸阳师范学院 | Protective device for external wiring harness of computer |
| CN211123600U (en) * | 2019-12-31 | 2020-07-28 | 深圳市群科电子有限公司 | Portable projector |
| CN211787611U (en) * | 2020-02-28 | 2020-10-27 | 湖南有色金属职业技术学院 | Multimedia device |
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Application publication date: 20210427 |
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