CN213399167U

CN213399167U - Multi-pattern laser dynamic display device

Info

Publication number: CN213399167U
Application number: CN202022088006.2U
Authority: CN
Inventors: 刘奎岩; 张祺; 庞庆龙; 齐小江; 马平平
Original assignee: Beijing Central Press Union Technology Co ltd
Current assignee: Beijing Central Press Union Technology Co ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-06-08
Anticipated expiration: 2030-09-22

Abstract

The utility model provides a multi-pattern laser dynamic display device, which comprises a light source and a projection device, wherein the light source is positioned above the projection device; the projection device comprises a limiting structure, a first rotating structure, a second rotating structure and an optical device, wherein the first rotating structure is arranged above the limiting structure, the second rotating structure is arranged above the first rotating structure, the optical device is arranged on the second rotating structure, and the projection device also comprises a first correcting structure and a second correcting structure, the first correcting structure is connected with the limiting structure, and the second correcting structure is connected with the first rotating structure.

Description

Multi-pattern laser dynamic display device

Technical Field

The utility model relates to a laser projection field, in particular to many patterns laser dynamic display device.

Background

In the prior art, a laser display device mainly comprises a laser light source, a mechanical movement mechanism and a diffraction optical element. Wherein, the surface of the diffraction optical element is processed with a micro-nano-scale microstructure. By utilizing the diffraction effect of the micro-nano structure on light, the diffraction optical element can output incident point laser as a required image. Due to the characteristics of high brightness and high collimation of the laser, the laser lamp can realize the image display with long distance and high brightness, so the laser lamp is rapidly developed in markets in Europe, America and China in recent years.

But most laser display device can only show static image on the existing market, for abundant performance content and improvement performance, make the utility model discloses both can throw out static image and can throw out dynamic image, the utility model discloses corresponding improvement has been made to the laser lamp, makes the dynamic display that the laser lamp can realize the image, also will realize the rotation of arbitrary image transform, image translation and image exactly. The current mainstream laser lamp products mainly adopt static images or static image combination without internal relation, although a few products can realize certain dynamic image display, the effect is not ideal.

The existing scheme for realizing dynamic effect on the laser lamp mainly comprises the following steps: each frame pattern is arranged in a rectangular shape to form a strip shape, and the whole strip-shaped diffraction optical element makes reciprocating motion along the long side direction. The back and forth movement of the elongated diffractive optical element is achieved by controlling the forward and reverse rotation of the motor. This solution increases the cost by requiring the addition of motion control elements (singlechips, limit sensors, etc.), and also leads to an increase in the overall system size and complexity.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems in the background art, the utility model provides a multi-pattern laser dynamic display device, which comprises a light source and a projection device, wherein the light source is positioned above the projection device; the projection device comprises a limiting structure, a first rotating structure, a second rotating structure and an optical device, wherein the first rotating structure is arranged above the limiting structure, the second rotating structure is arranged above the first rotating structure, and the optical device is arranged on the second rotating structure.

Preferably, among the above-mentioned technical scheme, limit structure is including the supporting seat, the support column, first sliding sleeve, first slide bar, the swinging brackets, the second sliding sleeve, the second slide bar, install the supporting seat on the support column, the bottom of supporting seat is connected with first sliding sleeve, first sliding sleeve inward sliding type cover is equipped with first slide bar, at the both ends fixedly connected with swinging brackets of first slide bar, all be connected with the second sliding sleeve at the other end of swinging brackets, second sliding sleeve inward sliding type cover is equipped with the second slide bar.

Preferably, in the above technical scheme, the first rotating structure includes a first motor, a crankshaft, a connecting shaft, a first rotating plate, a first fixing seat, and a second fixing seat, the first motor is fixed in the supporting seat, the output shaft of the first motor is connected with the crankshaft, the upper side of the crankshaft, which is far away from one end of the output shaft, is connected with the connecting shaft, the connecting shaft is provided with the first fixing seat, and the first rotating plate is sleeved on the first fixing seat; the bottom of the first rotating plate is provided with a second fixed seat corresponding to the second slide bar, and the second fixed seat is fixedly connected with the second slide bar.

Preferably, in the above technical scheme, the second rotating structure includes a second motor, a rotating base, a first gear and a second gear, the second motor is installed at a lower side of the other end of the first rotating plate, the first gear is installed at an upper side of the other end of the first rotating plate, the second motor is connected to the first gear, the first gear is meshed with the second gear, the second gear is installed above the first rotating plate, the second gear is slidably sleeved on the rotating base, and the rotating base is fixedly sleeved on the connecting shaft.

Preferably, in the above technical solution, a single seventh through hole is formed in the first rotating plate, eighth through holes are formed in the second gear in an annular array manner, an optical device is installed in each eighth through hole, the diameter of each eighth through hole is the same as that of each seventh through hole, and the distance between every two adjacent eighth through holes is greater than that of each eighth through hole.

Preferably, in the above technical scheme, the gear fixing device further includes a second rotating plate, the second rotating plate is installed above the second gear, the second rotating plate is fixedly sleeved on the rotating base, the second rotating plate is provided with ninth through holes, the size and number of the ninth through holes are the same as those of the eighth through holes, and the seventh through holes are aligned with the ninth through holes.

Preferably, in the above technical solution, the apparatus further includes a first correction structure and a second correction structure, the first correction structure is connected to the limiting structure, and the second correction structure is connected to the first rotating structure.

Preferably, in the above technical scheme, the first correction structure includes a first connecting plate and a first sensor, the first connecting plate is installed on one side of the supporting seat, the first sensor is installed on the first connecting plate, the second correction structure includes a second connecting plate and a second sensor, the second connecting plate is installed at the other end of the first rotating plate, and the second sensor is installed on the second connecting plate.

Preferably, in the above technical solution, one side of the crankshaft is connected with the first protrusion, and one side of the second rotating plate is connected with the second protrusion.

Preferably, in the above technical solution, the optical device is a grating.

Advantageous effects

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model makes the light source irradiate the optical device which carries out circular motion and further projects dynamic continuous images through the mutual matching of the first rotating structure, the second rotating structure and the limiting structure; the utility model is provided with a sensor to correct the deflection angle; the utility model discloses in through setting up the second gear into the mode that both can make translational motion and can make rotation motion, make the eighth through-hole that loads the grating on the second gear pass through the seventh through-hole on the first rotor plate with the same rotation angle in proper order, make the light source shine and then project out dynamic continuous image on the grating that carries out circular motion to utilize a plurality of grating motion to switch the dynamic display that shows and demonstrate many images, beneficial effect is obvious.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a front view of the limiting structure of the present invention;

fig. 3 is a top view of the limiting structure of the present invention;

fig. 4 is a right side view of a first rotary structure of the present invention;

FIG. 5 is a top view of the first motor and the supporting base of the present invention;

fig. 6 is a front view of a second rotary structure of the present invention;

fig. 7 is a top view of the first rotating plate of the present invention;

fig. 8 is a schematic diagram of a first calibration structure of the present invention;

fig. 9 is a schematic diagram of a second correction structure of the present invention.

100-projection device, 110-limit structure, 111-support seat, 112-first through hole, 113-second through hole, 114-support column, 115-first sliding sleeve, 116-first sliding rod, 117-second sliding rod, 118-second sliding sleeve, 119-L-shaped swinging rod, 120-first rotating structure, 121-first motor, 122-third through hole, 123-crankshaft, 124-connecting shaft, 125-first rotating plate, 1251-seventh through hole, 126-first fixed seat, 127-second fixed seat, 130-second rotating structure, 131-second motor, 132-fourth through hole, 133-fifth through hole, 134-sixth through hole, 135-rotating seat, 136-first gear, 137-second gear, 1371-eighth through hole, 140-first correction structure, 141-first connection plate, 142-first U-shaped sensor, 143-first protrusion, 144-second protrusion, 150-second correction structure, 151-second connection plate, 152-second U-shaped sensor, 160-second rotation plate, 161-ninth through hole.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

Example 1

As shown in fig. 1, the present invention provides a multi-pattern laser dynamic display device, which includes a light source (not shown in the figure), wherein the light source in this embodiment is preferably a laser; the projection device 100 is also included, and the light source is positioned above the projection device 100; as shown in fig. 2 and fig. 3, the projection apparatus includes a limiting structure 110, the limiting structure specifically includes a supporting seat 111, a supporting column 114, a first sliding sleeve 115, a first sliding rod 116, an L-shaped swing frame 117, a second sliding sleeve 118, and a second sliding rod 117, the supporting seat 111 is installed on the supporting column 114, preferably 4 supporting columns 114 in this embodiment, a first through hole 112 is formed at the center of the supporting seat 111, the two sides of the first through hole 112 are both provided with second through holes 113, the bottom of the support seat 111 is connected with a first sliding sleeve 115, the first sliding sleeve 115 is internally and slidably sleeved with a first sliding rod 116, the length of the first sliding rod 116 is greater than that of the first sliding sleeve 115, an L-shaped swing frame 119 is fixedly connected to two ends of the first sliding rod 116, a second sliding sleeve 118 is connected to the other end of the L-shaped swing frame 119, a second sliding rod 117 is slidably sleeved in the second sliding sleeve 118, and the length of the second sliding rod 117 is greater than that of the first sliding sleeve 118.

As shown in fig. 4, the first rotating structure 120 further includes a first rotating structure 120, the first rotating structure 120 specifically includes a first motor 121, a crankshaft 123, a connecting shaft 124, a first rotating plate 125, a first fixing seat 126, and a second fixing seat 127, in this embodiment, third through holes 122 (shown in fig. 5) are formed on the left and right sides of the first motor 121, and are matched with the second through holes 113, the first motor 121 is fixed in the first through holes 112 formed in the supporting seat 111 by matching with a first bolt and a first nut (not shown in the figure), the crankshaft 123 is connected to the output shaft of the first motor 121, the upper side of the crankshaft 123 far away from the output end is connected to the connecting shaft 124, the first fixing seat 126 (not shown in the figure) is installed on the connecting shaft 124, and the first rotating plate 125 is sleeved on the first; the bottom of the first rotating plate 125 is provided with a second fixed seat 127 corresponding to the second sliding rod 117, and the second fixed seat 127 is fixedly connected with the second sliding rod 117.

As shown in fig. 6 and 7, the second rotating structure 130 further includes a second rotating structure 130, the second rotating structure 130 specifically includes a second motor 131, a rotating base 135, a first gear 136, and a second gear 137, in this embodiment, a fourth through hole 132 is formed at the other end of the first rotating plate 125, fifth through holes 133 are formed at both sides of the fourth through hole 132, the second motor 131 is installed at the lower side of the other end of the first rotating plate 125, the first gear 136 is installed at the upper side of the other end of the first rotating plate 125, an output shaft of the second motor 131 passes through the fourth through hole 132 to be connected with the first gear 136, sixth through holes 134 are formed at both sides of the upper portion of the second motor 131 to be matched with the fifth through holes 133, the second motor 131 is fixed at the lower side of the other end of the first rotating plate 125 by matching with a second bolt and a second nut (not shown in the figure), the first gear 136 is engaged with the second gear 137, the second gear 137 is installed above the first, the second gear 137 is slidably sleeved on the rotating base 135, and the rotating base 135 is fixedly sleeved on the connecting shaft 124.

The first rotating plate 125 is provided with a single seventh through hole 1251, as shown in fig. 9, the second gear 137 is provided with eighth through holes 1371 in an annular array manner, in this embodiment, the number of the eighth through holes 1371 is 6, a groove is provided at each eighth through hole 1371, in this embodiment, the groove may be a 1mm groove, each eighth through hole 1371 is provided with an optical device (not shown in the figure) through the groove, in this embodiment, the optical device is preferably a grating, and the grating is a micro-nano-scale microstructure. The diameter of the single eighth through hole 1371 is the same as that of the single seventh through hole 1251, and the distance between the centers of circles of two adjacent eighth through holes 1371 is greater than the diameter of the eighth through hole 1371.

As shown in fig. 9, the second rotating plate 160 is further included, the second rotating plate 160 is installed above the second gear 137, the second rotating plate 160 is fixedly sleeved on the rotating base 135, the second rotating plate 160 is provided with ninth through holes 161, the size and number of the ninth through holes 161 are the same as those of the eighth through holes 1371, and the positions of the ninth through holes 161 and the seventh through holes 1251 are aligned.

The utility model makes the light source irradiate the optical device which carries out circular motion and further projects dynamic continuous images through the mutual matching of the first rotating structure, the second rotating structure and the limiting structure; the utility model is provided with a sensor to correct the deflection angle; the utility model discloses in through setting up the second gear into the mode that both can make translational motion and can make rotation motion, make the eighth through-hole that loads the grating on the second gear pass through the seventh through-hole on the first rotor plate with the same rotation angle in proper order, make the light source shine and then project out dynamic continuous image on the grating that carries out circular motion to utilize a plurality of grating motion to switch the dynamic display that shows and demonstrate many images, beneficial effect is obvious.

Example 2

On the basis of embodiment 1, embodiment 2 further includes a first correction structure 140 and a second correction structure 150, as shown in fig. 8, the first correction structure 140 is connected to the limiting structure 110, and as shown in fig. 9, the second correction structure 150 is connected to the first rotation structure 120. As shown in fig. 8, the first calibration structure 140 specifically includes a first connecting plate 141 and a first sensor 142, in this embodiment, the first sensor 142 is preferably a U-shaped sensor, the first connecting plate 141 is mounted on one side of the supporting seat 111, the first U-shaped sensor 142 is mounted on the first connecting plate 141, a first protrusion 143 is connected to one side of the crankshaft 123, and the size of the first protrusion 143 matches with the concave portion of the first U-shaped sensor 142.

As shown in fig. 9, the second calibration structure 150 specifically includes a second connecting plate 151 and a second sensor 152, the second connecting plate 151 is mounted at the other end of the first rotating plate 125, and the second sensor 152 is mounted on the second connecting plate 151. Therefore, the angle error correction is possible by the first sensor 142 and the second sensor 152.

The working principle is as follows:

when the utility model discloses the time, open the light source, make the light source shine on the optical device grating, start first motor 121, the output shaft of first motor 121 drives bent axle 123 and rotates, bent axle 123 rotates and drives connecting axle 124 and rotate, connecting axle 124 rotates and drives first rotor plate 125 and rotate, and then make first rotor plate 125 use the output shaft as the centre of a circle, use bent axle 123 length to do circular motion as the radius, but because the limiting displacement of first sliding sleeve 115, second sliding sleeve 118, first slide bar 116, second slide bar 117, make first rotor plate 125 can only be at first sliding sleeve 115, second sliding sleeve 118, first slide bar 116, the translational motion of horizontal direction and vertical direction is done to the within range that second slide bar 117 prescribes a limit to. The second motor 131 is started, the second motor 131 rotates to drive the first gear 136 to rotate, the first gear 136 rotates to drive the second gear 137 to rotate, since the second gear 137 is fixedly sleeved on the connecting shaft 124 through the rotating seat 135, the first gear 136 drives the second gear 137 to rotate around the connecting shaft 124, at the same time, the second gear 137 also performs the same translational motion as the first rotating plate 125 along with the rotation of the connecting shaft 124, that is, the second gear 137, when the grating does translational motion, the grating also does autorotation motion by taking the connecting shaft 124 as the center of a circle, so that the grating arranged on the second gear 137 also does the same motion along with the second gear 137, and then the light source irradiates the grating to perform circular motion so as to project dynamic continuous images, and therefore, a plurality of gratings loaded in the eighth through hole are used for displaying in a switching mode to present dynamic display of a plurality of images.

When crankshaft 123 rotates one cycle, first protrusion 143 on one side of crankshaft 123 is sensed by first U-shaped sensor 142 through first U-shaped sensor 142, and therefore, first protrusion 143 represents crankshaft 123 rotating one cycle through first U-shaped sensor 142, and therefore, angle error correction can be performed through first U-shaped sensor 142.

When the second rotating plate 160 rotates for one turn, the second protrusion 144 on one side of the second rotating plate 160 is sensed by the second U-shaped sensor 152 through the second U-shaped sensor 152, so that the second protrusion 144 represents that the second rotating plate 160 rotates for one turn through the second U-shaped sensor 152, that is, the first rotating plate 160 and the first gear 136 rotate for one turn, and therefore, the angle error can be corrected through the second U-shaped sensor 152.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. A multi-pattern laser dynamic display device comprises a light source and is characterized by also comprising a projection device, wherein the light source is positioned above the projection device; the projection device comprises a limiting structure, a first rotating structure, a second rotating structure and an optical device, wherein the first rotating structure is arranged above the limiting structure, the second rotating structure is arranged above the first rotating structure, and the optical device is arranged on the second rotating structure.

2. The dynamic display device of claim 1, wherein the position-limiting structure comprises a supporting base, a supporting column, a first sliding sleeve, a first sliding rod, a swinging frame, a second sliding sleeve, and a second sliding rod, the supporting base is installed on the supporting column, the first sliding sleeve is connected to the bottom of the supporting base, the first sliding sleeve is slidably sleeved on the first sliding sleeve, the swinging frame is fixedly connected to two ends of the first sliding rod, the second sliding sleeve is connected to the other end of the swinging frame, and the second sliding sleeve is slidably sleeved on the second sliding sleeve.

3. The dynamic multi-pattern laser display device according to claim 2, wherein the first rotating structure comprises a first motor, a crankshaft, a connecting shaft, a first rotating plate, a first fixing seat and a second fixing seat, the first motor is fixed in the supporting seat, the crankshaft is connected to an output shaft of the first motor, the connecting shaft is connected to an upper side of the crankshaft, which is far away from one end of the output shaft, the first fixing seat is mounted on the connecting shaft, and the first rotating plate is sleeved on the first fixing seat; the bottom of the first rotating plate is provided with a second fixed seat corresponding to the second slide bar, and the second fixed seat is fixedly connected with the second slide bar.

4. The dynamic multi-pattern laser display device as claimed in claim 3, wherein the second rotating structure comprises a second motor, a rotating base, a first gear and a second gear, the second motor is installed at a lower side of the other end of the first rotating plate, the first gear is installed at an upper side of the other end of the first rotating plate, the second motor is connected to the first gear, the first gear is engaged with the second gear, the second gear is installed above the first rotating plate, the second gear is slidably sleeved on the rotating base, and the rotating base is fixedly sleeved on the connecting shaft.

5. The dynamic display device of claim 4, wherein a single seventh through hole is formed in the first rotating plate, eighth through holes are formed in the second gear in an annular array, the optical device is mounted in the eighth through hole, the diameter of the single eighth through hole is the same as that of the single seventh through hole, and the distance between two adjacent eighth through holes is greater than that of the eighth through hole.

6. The dynamic multi-pattern laser display device as claimed in claim 5, wherein the second rotating structure further comprises a second rotating plate, the second rotating plate is mounted above the second gear, the second rotating plate is fixedly sleeved on the rotating base, the second rotating plate is provided with ninth through holes, the size and number of the ninth through holes are the same as those of the eighth through holes, and the seventh through holes are aligned with the ninth through holes.

7. The dynamic display device of claim 1, further comprising a first calibration structure and a second calibration structure, wherein the first calibration structure is connected to the position limiting structure, and the second calibration structure is connected to the first rotation structure.

8. The dynamic display device as claimed in claim 7, wherein the first calibration structure comprises a first sensor and the second calibration structure comprises a second sensor.

9. The dynamic display device of claim 6, wherein a first protrusion is connected to one side of the crankshaft, and a second protrusion is connected to one side of the second rotating plate.

10. A multi-pattern laser dynamic display device as claimed in claim 1, wherein said optical device is a grating.