A projection device based on visual design

Abstract

This utility model discloses a projection device based on vision design, relating to the technical field of projection devices. The projection device based on vision design has a rotating sleeve fixedly connected to the upper surface of a base plate. An outer cylinder is rotatably connected inside the rotating sleeve. An inner column is provided inside the outer cylinder, with the upper end of the inner column extending outwards from the outer cylinder. The upper end of the outer cylinder also extends outwards from the rotating sleeve. Two connecting sleeves are provided on the outer surface of the outer cylinder. A sliding groove communicating with the interior of the outer cylinder is formed on the outer surface of the outer cylinder. The connecting sleeves extend into the interior of the outer cylinder through the sliding groove and are fixedly connected to the inner column. An installation ring is fitted onto the outer surface of the outer cylinder, and a threaded rod is rotatably connected to the upper surface of the installation ring. Vertical lifting and lowering can be achieved through the cooperation of the connecting sleeves and the threaded rod. Furthermore, during lifting and lowering, there is no need to manually lift the inner column, reducing physical exertion and improving operational convenience. The height adjustment is also more precise compared to traditional structures.

Description

Technical Field

[0001] This utility model relates to the field of projection device technology, and in particular to a projection device based on vision design. Background Technology

[0002] Visual design is a subjective means and result of expression targeting the visual senses. It differs from visual communication design. Visual communication design, a subfield of visual design, primarily focuses on the target audience, lacking consideration for the designer's own visual needs. Visual communication, however, communicates to both the viewer and the designer. Therefore, in-depth research in visual communication has addressed all aspects of visual experience, making the term "visual design" more accurate. A projection device uses optical principles to magnify outlines and project them onto a designated location. In contrast, the projection device in visual design uses a projection technique to express the designer's prepared work.

[0003] For example, the Chinese utility model patent with publication number CN221743728U can project works from multiple angles, greatly improving the flexibility of the device. It is also simple and convenient to operate and highly practical. However, since the projection device itself has a certain weight, when adjusting its height, the inner column lacks support when the bolt is loosened, making it easy to fall instantly and damage the projection device. At the same time, when adjusting upwards, it is necessary to manually lift the inner column upwards and then tighten the bolt, which is difficult for a single person to complete and has certain shortcomings. In view of this, we propose a projection device based on visual design. Utility Model Content

[0004] The purpose of this invention is to provide a projection device based on visual design to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a projection device based on visual design, comprising a base plate, a rotating sleeve fixedly connected to the upper surface of the base plate, an outer cylinder rotatably connected inside the rotating sleeve, an inner column provided inside the outer cylinder, the upper end of the inner column extending out of the outer cylinder, the upper end of the outer cylinder extending out of the rotating sleeve, two connecting sleeves provided on the outer surface of the outer cylinder, a sliding groove communicating with the interior of the outer cylinder being opened on the outer surface of the outer cylinder, the connecting sleeves extending into the interior of the outer cylinder through the sliding groove and fixedly connected to the inner column, an installation ring sleeved on the outer surface of the outer cylinder, a threaded rod rotatably connected to the upper surface of the installation ring, the right connecting sleeve being threadedly connected to the threaded rod through an internal thread, and a guide assembly provided on the outer cylinder.

[0006] Preferably, the guide assembly includes a guide rod, which is fixedly connected to the upper surface of the mounting ring, and the connecting sleeve on the left side is slidably sleeved on the outer surface of the guide rod. Two limiting sleeves are fixedly connected to the outer surface of the outer cylinder.

[0007] Preferably, the guide rod is sleeved inside the left limiting sleeve, the upper end of the threaded rod rotates through the upper surface of the right limiting sleeve, and the outer surface of the outer cylinder is provided with a rotating groove.

[0008] Preferably, a drive ring is provided on the outer surface of the outer cylinder, and a connecting ring is fixedly connected to the inner wall of the drive ring.

[0009] Preferably, the connecting ring is rotatably connected inside the rotating groove, an internal gear ring is fixedly connected to the lower surface of the driving ring, and a gear is fixedly connected to the upper end of the threaded rod.

[0010] Preferably, the gear meshes with an internal gear ring, and a threaded cylinder is fixedly connected to the outer surface of the rotating sleeve.

[0011] Preferably, the outer surface of the threaded cylinder is provided with a movable groove, a limiting ring is movably sleeved on the movable groove, and an L-shaped connecting rod is fixedly connected to the outer surface of the limiting ring.

[0012] Preferably, a locking bolt is fixedly connected to the end of the L-shaped connecting rod, the threaded cylinder is threadedly connected to the locking bolt through an internal thread, and a through groove communicating with the inside of the rotating sleeve is opened on the outer surface of the rotating sleeve, the through groove being aligned with the threaded cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This projection device based on vision design can achieve vertical lifting and lowering through the cooperation of the connecting sleeve and the threaded rod. During the lifting and lowering process, there is no need to manually lift the inner column, which reduces physical exertion and improves the ease of operation. Moreover, the height adjustment is more precise than that of traditional structures.

[0015] 2. This vision-based projection device can avoid the accidental loss of locking bolts by using a limit ring in conjunction with the design of the movable groove and L-shaped connecting rod, effectively avoiding the problem of functional defects caused by the loss of some parts. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the structure of a projection device based on vision design according to this utility model;

[0018] Figure 2 This is a schematic diagram of the internal toothed ring of this utility model;

[0019] Figure 3 This is a schematic diagram of the threaded rod of this utility model;

[0020] Figure 4 This is a schematic diagram of the limiting ring of this utility model;

[0021] Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0022] Reference numerals: 1. Base plate; 2. Rotating sleeve; 3. Outer cylinder; 4. Inner column; 5. Connecting sleeve; 6. Sliding groove; 7. Mounting ring; 8. Threaded rod;

[0023] 9. Guide rod; 10. Limiting sleeve; 11. Rotating groove; 12. Drive ring; 13. Connecting ring; 14. Internal gear ring; 15. Gear; 16. Threaded cylinder;

[0024] 17. Movable groove; 18. Limiting ring; 19. L-shaped connecting rod; 20. Locking bolt. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] Please see Figures 1-5 This utility model provides a technical solution: a projection device based on visual design, including a base plate 1, a rotating sleeve 2 fixedly connected to the upper surface of the base plate 1, an outer cylinder 3 rotatably connected inside the rotating sleeve 2 for providing installation space, an inner column 4 for vertical adjustment inside the outer cylinder 3, the upper end of the inner column 4 extending out of the outer cylinder 3, the upper end of the outer cylinder 3 extending out of the rotating sleeve 2, two connecting sleeves 5 for connecting the inner column 4 to the outside, and an opening on the outer surface of the outer cylinder 3 communicating with the inside of the outer cylinder 3 to provide movement space. The sliding groove 6 between the inner cylinder and the connecting sleeve 5 extends into the interior of the outer cylinder 3 through the sliding groove 6 and is fixedly connected to the inner column 4. The outer surface of the outer cylinder 3 is fitted with an installation ring 7. The upper surface of the installation ring 7 is rotatably connected to a threaded rod 8 for the main drive. The right connecting sleeve 5 is threaded to the outer surface of the threaded rod 8 through the internal thread. The outer cylinder 3 is provided with a guide assembly, which can achieve vertical lifting and lowering through the cooperation of the connecting sleeve 5 and the threaded rod 8. During the lifting and lowering process, there is no need to manually lift the inner column 4, which reduces physical exertion and improves the convenience of operation. Moreover, the height adjustment is more precise than the traditional structure.

[0027] The guiding assembly includes a guide rod 9 that guides the movement trajectory of the connecting sleeve 5. The guide rod 9 is fixedly connected to the upper surface of the mounting ring 7. The left connecting sleeve 5 is slidably fitted on the outer surface of the guide rod 9. Two limiting sleeves 10 for support and restriction are fixedly connected to the outer surface of the outer cylinder 3. The guide rod 9 is fitted inside the left limiting sleeve 10. The upper end of the threaded rod 8 rotatably passes through the upper surface of the right limiting sleeve 10. A rotating groove 11 providing rotation space is opened on the outer surface of the outer cylinder 3. A drive ring 12 for operation is provided on the outer surface of the outer cylinder 3. A connecting ring 13 that cooperates with the rotating groove 11 to complete the rotation function is fixedly connected to the inner wall of the drive ring 12. The connecting ring 13 is rotatably connected inside the rotating groove 11. An internal gear ring 14 for power transmission is fixedly connected to the lower surface of the drive ring 12. A gear 15 for transmission is fixedly connected to the upper end of the threaded rod 8. The gear 15 meshes with the internal gear ring 14.

[0028] A threaded cylinder 16 is fixedly connected to the outer surface of the rotating sleeve 2. A movable groove 17 is provided on the outer surface of the threaded cylinder 16. A limiting ring 18 is movably sleeved on the movable groove 17 to limit the range of motion. An L-shaped connecting rod 19 is fixedly connected to the outer surface of the limiting ring 18. A locking bolt 20 for locking the outer cylinder 3 is fixedly connected to the end of the L-shaped connecting rod 19. The threaded cylinder 16 is threadedly connected to the locking bolt 20 through its internal thread. It should be noted that the locking bolt 20 is not completely disengaged from the threaded cylinder 16. The locking bolt is always connected to the threaded cylinder 16. Therefore, there is no need to consider repositioning. When unlocking, the locking bolt 20 only needs to be disengaged from the outer cylinder 3.

[0029] The outer surface of the rotating sleeve 2 is provided with a through groove that communicates with the inside of the rotating sleeve 2. The through groove is aligned with the threaded cylinder 16. The design of the limiting ring 18, the movable groove 17 and the L-shaped connecting rod 19 can help prevent the locking bolt 20 from being lost accidentally, thus effectively avoiding the problem of functional defects caused by the loss of some parts.

[0030] The base plate 1 mentioned in the text can be equipped with a counterweight to increase overall stability. Meanwhile, the fixing and adjustment mechanism of the projection head can be referred to in patent publication number CN221743728U. Since it is not the main direction of improvement, it will not be described in detail here.

[0031] Working principle: When adjusting the height of the inner column 4, the drive ring 12 can be rotated. When the drive ring 12 rotates, it will restrict its own movement trajectory with the help of the connecting ring 13 and the rotating groove 11. At the same time, the rotation of the drive ring 12 will drive the internal gear ring 14 to rotate. Since the internal gear ring 14 is meshed with the gear 15, it will drive the gear 15 to rotate synchronously. In turn, the gear 15 will drive the threaded rod 8 to rotate. Since the right connecting sleeve 5 is threaded on the outer surface of the threaded rod 8, and the threaded rod 8 can only rotate at this time, the rotation of the threaded rod 8 will drive the connecting sleeve 5 to move vertically. When the connecting sleeve 5 moves, it will drive the inner column 4 to move synchronously, thus completing the height adjustment. When rotating, the locking bolt 20 can be rotated to stop its end from contacting the outer cylinder 3. At this time, the outer cylinder 3 can be rotated to drive the entire structure to rotate. The limiting ring 18 cooperates with the movable groove 17 and with the help of the L-shaped connecting rod 19 to prevent the locking bolt 20 from completely disengaging from the threaded cylinder 16, thus preventing the locking bolt 20 from being lost.

[0032] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A projection device based on visual design, comprising a base plate (1), characterized in that: A rotating sleeve (2) is fixedly connected to the upper surface of the base plate (1). An outer cylinder (3) is rotatably connected inside the rotating sleeve (2). An inner column (4) is provided inside the outer cylinder (3). The upper end of the inner column (4) extends out of the outer cylinder (3). The upper end of the outer cylinder (3) extends out of the rotating sleeve (2). Two connecting sleeves (5) are provided on the outer surface of the outer cylinder (3). A sliding groove (6) communicating with the interior of the outer cylinder (3) is opened on the outer surface of the outer cylinder (3). The connecting sleeve (5) extends into the interior of the outer cylinder (3) through the sliding groove (6) and is fixedly connected to the inner column (4). An installation ring (7) is sleeved on the outer surface of the outer cylinder (3). A threaded rod (8) is rotatably connected to the upper surface of the installation ring (7). The connecting sleeve (5) on the right side is threadedly connected to the threaded rod (8) through an internal thread. A guide assembly is provided on the outer cylinder (3).

2. The projection device based on visual design according to claim 1, characterized in that: The guide assembly includes a guide rod (9), which is fixedly connected to the upper surface of the mounting ring (7). The connecting sleeve (5) on the left side is slidably sleeved on the outer surface of the guide rod (9). Two limiting sleeves (10) are fixedly connected to the outer surface of the outer cylinder (3).

3. The projection device based on visual design according to claim 2, characterized in that: The guide rod (9) is sleeved inside the left limiting sleeve (10), the upper end of the threaded rod (8) rotates through the upper surface of the right limiting sleeve (10), and the outer surface of the outer cylinder (3) is provided with a rotating groove (11).

4. The projection device based on visual design according to claim 3, characterized in that: The outer surface of the outer cylinder (3) is provided with a drive ring (12), and the inner wall of the drive ring (12) is fixedly connected with a connecting ring (13).

5. A projection device based on visual design according to claim 4, characterized in that: The connecting ring (13) is rotatably connected inside the rotating groove (11), the lower surface of the driving ring (12) is fixedly connected to an internal gear ring (14), and the upper end of the threaded rod (8) is fixedly connected to a gear (15).

6. A projection device based on visual design according to claim 5, characterized in that: The gear (15) meshes with the internal gear ring (14), and a threaded cylinder (16) is fixedly connected to the outer surface of the rotating sleeve (2).

7. A projection device based on visual design according to claim 6, characterized in that: The outer surface of the threaded cylinder (16) is provided with a movable groove (17), and a limiting ring (18) is movably sleeved on the movable groove (17). An L-shaped connecting rod (19) is fixedly connected to the outer surface of the limiting ring (18).

8. The projection device based on visual design according to claim 7, characterized in that: The end of the L-shaped connecting rod (19) is fixedly connected to a locking bolt (20), and the threaded cylinder (16) is threadedly connected to the locking bolt (20) through an internal thread. The outer surface of the rotating sleeve (2) is provided with a through groove that communicates with the inside of the rotating sleeve (2), and the through groove is aligned with the threaded cylinder (16).

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