Laser projection equipment

Abstract

The utility model relates to the technical field of projectors, and discloses a laser projection device which comprises a main body and a mounting plate, first fixing parts are fixedly mounted at two corners of the rear end of the top of the main body, a second fixing part is fixedly mounted in the middle of the front end of the top of the main body, and a vertical connecting column is fixedly mounted at the bottom of the mounting plate. The connecting column is movably connected with a lantern ring in a sleeved mode, two rear connecting rods are fixedly installed on the side wall of the lantern ring, and the ends, away from the lantern ring, of the two rear connecting rods are rotationally connected to the two first fixing pieces respectively. In this way, angle adjustment of the main body can be achieved, the overall position height of the main body can be adjusted by changing the position height of the lantern ring on the connecting column, the main body can be fixed more stably, and the situation of projection deflection of the main body is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of projectors, in particular to a laser projection device. Background Art

[0002] A laser projector uses a laser beam to project an image, wherein the optical components of a laser projector mainly consist of a red, green, and blue light valve, a beam-combining X-prism, a projection lens, and a driving light valve. There are red, green, and blue lasers in a laser projector. The lasers are expanded by corresponding optical elements and processing chips in the machine and then transmitted to the X-prism to integrate the three laser beams. The projection objective lens then transmits the integrated lasers to the projection screen to complete the entire laser projector display process. Laser projectors are usually installed by hanging. After installation, the angle of the device needs to be adjusted so that the projected image is accurately projected onto the screen. However, common laser projectors often have a skewed projection angle during use, and users need to make small adjustments to the projection angle. However, the angle adjustment method of common laser projectors is still prone to difficulty in aligning with the screen, and once the laser projector is touched, its projection angle will be affected. For this reason, the present application proposes a laser projection device. Utility Model Content

[0003] In order to solve the problems raised in the above-mentioned background technology, the utility model provides the following technical solutions: a laser projection device, including a main body and a mounting plate, wherein first fixing parts are fixedly installed at two corners at the rear end of the top of the main body, and a second fixing part is fixedly installed at the middle position of the front end of the top of the main body, and a vertical connecting column is fixedly installed at the bottom of the mounting plate, and a ring is movably sleeved on the connecting column, and two rear connecting rods are fixedly installed on the side wall of the ring, and the ends of the two rear connecting rods away from the ring are respectively rotatably connected to the two first fixing parts, and a front connecting rod is also fixedly installed on the outer wall of the ring, and a rotatable rotating rod is movably connected to the end of the front connecting rod away from the ring, and a rod groove is opened at the bottom end of the rotating rod, a screw rod is threadedly inserted into the rod groove, and the bottom end of the screw rod extends out of the rod groove and is rotatably connected to the second fixing part.

[0004] Preferably, a limiting ball is fixedly installed at the bottom end of the front connecting rod, a notch is opened at the top of the rotating rod, and semicircular limiting grooves are opened on both sides of the inner wall of the notch. The limiting ball is located in the notch, and the side walls on both sides of the limiting ball are respectively located in the limiting grooves on both sides of the inner wall of the notch and can rotate therein.

[0005] Preferably, an upper nut and a lower nut are threadedly sleeved on the connecting column, the upper nut is located above the collar, and the lower nut is located below the collar.

[0006] Preferably, a slot is formed on the side wall of the connecting column, a fixing rod is fixedly installed between the inner ring walls of the collar, the fixing rod is inserted into the slot on the side wall of the connecting column, and the fixing rod can move up and down in the slot.

[0007] Preferably, a limiting block is fixedly installed at the bottom end of the connecting column, and the diameter of the limiting block is larger than the diameter of the connecting column.

[0008] Preferably, the connecting post is located directly above the center of the top of the main body.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] By twisting the rotating rod to make the rod groove at the bottom end and the screw threadedly rotate, the position height of the front end of the main body can be changed, so that the angle adjustment of the main body can be achieved. By changing the position height of the ring on the connecting column, the overall position height of the main body can be adjusted, and through the cooperation of two rear connecting rods and one front connecting rod, the main body can be stably fixed to avoid projection deviation of the main body during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure of the main body of the utility model from a top view;

[0014] Figure 3 This is a schematic cross-sectional structure diagram of the connection between the front connecting rod and the screw rod of the utility model;

[0015] Figure 4 It is a schematic diagram of the cross-sectional structure of the rotating rod of the utility model;

[0016] Figure 5 It is a schematic diagram of the cross-sectional structure of the connection between the connecting column and the casing of the utility model;

[0017] In the figure: 1. main body; 2. first fixing member; 3. second fixing member; 4. mounting plate; 5. connecting column; 6. limiting block; 7. collar; 8. upper nut; 9. lower nut; 10. rear connecting rod; 11. front connecting rod; 12. limiting ball; 13. rotating rod; 14. missing groove; 15. limiting groove; 16. rod groove; 17. screw rod; 18. notch; 19. fixing rod. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] Depend on Figure 1-5 The utility model includes a main body 1 and a mounting plate 4, wherein the first fixing member 2 is fixedly installed at the two corners of the top rear end of the main body 1, and the second fixing member 3 is fixedly installed at the middle position of the top front end of the main body 1, and a vertical connecting column 5 is fixedly installed at the bottom of the mounting plate 4, and a collar 7 is movably sleeved on the connecting column 5, and two rear connecting rods 10 are fixedly installed on the side wall of the collar 7, and the ends of the two rear connecting rods 10 away from the collar 7 are respectively rotatably connected to the two first fixing members 2, and a front connecting rod 11 is also fixedly installed on the outer wall of the collar 7, and the end of the front connecting rod 11 away from the collar 7 is movably connected There is a rotatable rotating rod 13, at the bottom end of which a rod groove 16 is provided, and a screw rod 17 is inserted into the inner thread of the rod groove 16, and the bottom end of the screw rod 17 extends out of the rod groove 16 and is rotatably connected to the second fixing member 3. When adjusting the horizontal height of the front end of the main body 1, the two first fixing members 2 on the top of the main body 1 can rotate around the bottom ends of the two rear connecting rods 10, so as to complete the projection angle of the main body 1, and by adjusting the position of the ring 7 on the connecting column 5, the overall horizontal height of the main body 1 can be changed, and then the adjusted position of the ring 7 can be fixed by the upper nut 8 and the lower nut 9.

[0020] At the same time, a limiting ball 12 is fixedly installed at the bottom end of the front connecting rod 11, and a notch 14 is opened at the top of the rotating rod 13, and semicircular limiting grooves 15 are opened on both sides of the inner wall of the notch 14, the limiting ball 12 is located in the notch 14, and the side walls on both sides of the limiting ball 12 are respectively located in the limiting grooves 15 on both sides of the inner wall of the notch 14 and can rotate therein, by twisting the rotating rod 13 to make its top end rotate around the limiting ball 12 at the bottom end of the front connecting rod 11 as the center, the rotating rod 13 can also flip the angle while rotating, when the rod groove 16 at the bottom end of the rotating rod 13 and the screw rod 17 are threadedly rotated, the screw rod 17 will move in the rod groove 16, and then the bottom end of the screw rod 17 will rotate around the second fixing member 3, thereby completing the adjustment of the front end angle of the main body 1.

[0021] In addition, an upper nut 8 and a lower nut 9 are threadedly sleeved on the connecting column 5. The upper nut 8 is located above the collar 7, and the lower nut 9 is located below the collar 7. The upper nut 8 and the lower nut 9 can fix the position of the collar 7 on the connecting column 5.

[0022] In addition, a slot 18 is provided on the side wall of the connecting column 5, and a fixing rod 19 is fixedly installed between the inner ring walls of the collar 7. The fixing rod 19 is inserted into the slot 18 on the side wall of the connecting column 5, and the fixing rod 19 can move up and down in the slot 18. With the cooperation of the fixing rod 19 and the slot 18, the collar 7 cannot rotate on the connecting column 5, and the collar 7 can only move vertically up and down along the direction of the connecting column 5.

[0023] Furthermore, a limit block 6 is fixedly installed at the bottom end of the connecting column 5 . The diameter of the limit block 6 is larger than the diameter of the connecting column 5 . The limit block 6 can prevent the lower nut 9 from separating from the connecting column 5 .

[0024] Furthermore, the connecting post 5 is located directly above the center of the top of the main body 1 .

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser projection device, comprising a main body (1) and a mounting plate (4), characterized in that: A first fixing member (2) is fixedly installed at two corners at the rear end of the top of the main body (1), and a second fixing member (3) is fixedly installed at the middle position of the front end of the top of the main body (1). A vertical connecting column (5) is fixedly installed at the bottom of the mounting plate (4), and a collar (7) is movably sleeved on the connecting column (5). Two rear connecting rods (10) are fixedly installed on the side wall of the collar (7), and the ends of the two rear connecting rods (10) away from the collar (7) are rotatably connected to the two first fixing members (2). A front connecting rod (11) is also fixedly installed on the outer wall of the collar (7), and a rotatable rotating rod (13) is movably connected to the end of the front connecting rod (11) away from the collar (7). A rod groove (16) is provided at the bottom end of the rotating rod (13), and a screw rod (17) is inserted into the inner thread of the rod groove (16). The bottom end of the screw rod (17) extends out of the rod groove (16) and is rotatably connected to the second fixing member (3).

2. A laser projection device according to claim 1, characterized in that: A limiting ball (12) is fixedly installed at the bottom end of the front connecting rod (11), a notch (14) is provided at the top end of the rotating rod (13), and semicircular limiting grooves (15) are provided on both sides of the inner wall of the notch (14), the limiting ball (12) is located in the notch (14), and the side walls on both sides of the limiting ball (12) are respectively located in the limiting grooves (15) on both sides of the inner wall of the notch (14) and can rotate therein.

3. A laser projection device according to claim 1, characterized in that: An upper nut (8) and a lower nut (9) are threadedly sleeved on the connecting column (5); the upper nut (8) is located above the collar (7) and the lower nut (9) is located below the collar (7).

4. The laser projection device according to claim 1, characterized in that: The side wall of the connecting column (5) is provided with a notch (18), and a fixing rod (19) is fixedly installed between the inner ring walls of the collar (7). The fixing rod (19) penetrates and is inserted into the notch (18) on the side wall of the connecting column (5), and the fixing rod (19) can move up and down in the notch (18).

5. The laser projection device according to claim 1, characterized in that: A limiting block (6) is fixedly mounted on the bottom end of the connecting column (5), and the diameter of the limiting block (6) is greater than the diameter of the connecting column (5).

6. The laser projection device according to claim 1, characterized in that: The connection column (5) is located directly above the center of the top of the main body (1).

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