A flexible adjustable projector stand

Abstract

This utility model provides a flexibly adjustable projector support frame, relating to the field of projector bracket technology. It includes a leg assembly, a lifting and rotating assembly, an angle adjustment assembly, and a placement platform assembly. The leg assembly achieves stable support and portable movement through adjustable legs, reinforcing links, and a first handle. The lifting and rotating assembly allows for height adjustment and horizontal rotation positioning. The angle adjustment assembly achieves multi-angle pitch adjustment through a spherical mating structure. The placement platform assembly features a spring-driven clamping structure and ventilation holes. This support frame, through the coordinated action of multiple components, achieves stable adaptation to projectors of different sizes, avoiding the risk of equipment slippage or falling. It also balances ease of movement with support stability, simplifies leveling operations, and solves the problems of poor size adaptability and the contradiction between mobility and stability inherent in traditional brackets. It is suitable for various projection scenarios, improving the flexibility and safety of equipment use.

Description

Technical Field

[0001] This utility model relates to the field of projector bracket technology, and in particular to a projector support bracket that can be flexibly adjusted. Background Technology

[0002] With the rapid development of digital education and remote work models, projection equipment, as an important visual display tool, is finding increasingly diverse applications and is being used more frequently.

[0003] Traditional projector stands are mostly fixed in place, secured to the ceiling or wall with bolts. While this provides stable suspension, it severely limits the mobility and applicability of the projection equipment. In practical use, once the installation location is determined, it is difficult to flexibly adjust it according to the actual area to be projected or the temporary venue setup. Although some movable stands have emerged in existing technology, the following technical problems still exist in practical applications:

[0004] 1) Poor size adaptability: The length and width of the tray in the existing device are fixed values, which can only match projectors of a specific size range. For small portable projectors, the tray is too large, which makes the device prone to lateral sliding during adjustment. For large engineering projectors, the tray area is insufficient, and the edge of the device exceeds the tray range. Uneven weight distribution can easily cause tilting, or even pose a risk of falling.

[0005] 2) Insufficient structural rigidity and inconvenient to carry: Existing devices are either designed to be bulky and difficult to move in order to ensure stability, making them unsuitable for use in multiple scenarios; or they are easy to move but sacrifice stability, requiring a cumbersome leveling process after being moved to a new location, and are prone to shaking due to slight touches during use, affecting the projection effect. This creates a contradiction between the inconvenience of movement and the lack of stability and difficulty in leveling after deployment.

[0006] Therefore, it is necessary to develop a flexible adjustable projector support frame to solve the problems mentioned above. Utility Model Content

[0007] The purpose of this invention is to provide a projector support frame that is flexibly adjustable, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model adopts the following technical solution: a flexibly adjustable projector support frame, including a leg assembly, wherein a lifting and rotating assembly, an angle adjustment assembly, and a placement platform assembly are sequentially arranged at the upper end of the leg assembly; the leg assembly includes a central base, and three adjustable legs are hinged to the bottom of the central base; each of the three adjustable legs has a hinge coupling fixedly installed on its outer middle end; a reinforcing rod is hinged inside each hinge coupling; a bearing is hinged to the other end of the reinforcing rod; a first locking bolt is threaded to the side wall of the bearing; the three adjustable legs... The bottom of each adjustable support leg is fixedly equipped with a first anti-slip pad, and the bottom of the center seat is fixedly equipped with a first handle. The placement platform assembly includes a tray fixedly installed on the top of the angle adjustment assembly. The bottom of the tray is equipped with a second anti-slip pad. The tray and the second anti-slip pad are provided with multiple evenly distributed heat dissipation holes. The inner side wall of the tray is equipped with eight springs, which are divided into four groups of two. The other end of each pair of springs is connected to a second top plate. The end of the second top plate away from the spring is fixedly equipped with a silicone pad. The side of the tray is fixedly connected with a second handle.

[0009] Preferably, the lifting and rotating assembly includes an outer tube fixedly installed inside the central seat, a limit ring at the lower end of the outer tube, a bearing slidably connected to the outer tube, and the bearing always being located above the limit ring. The bottom end of the first locking bolt penetrates the side wall of the bearing and is tightly fitted to the side wall of the outer tube. The first handle is fixedly installed on the outside of the outer tube. The outer tube is a hollow cylindrical structure, and an adjustment platform is fixedly installed on the top of the outer tube. A threaded lifting rod is threadedly connected to the center of the adjustment platform. The lower end of the threaded lifting rod is located inside the outer tube, and the outer wall of the threaded lifting rod does not contact the inner wall of the outer tube.

[0010] Preferably, the side wall of the adjustment platform is threaded with a third locking bolt, the bottom end of the third locking bolt is tightly fitted with the side wall of the threaded lifting rod, the top of the threaded lifting rod is fixedly installed with a first top plate, the upper end of the first top plate is fixedly installed with a central shaft, the top of the central shaft is rotatably installed with a support seat, and the first top plate is vertically threaded with second locking bolts located on the left and right sides of the central shaft.

[0011] Preferably, the bottom of the support base is provided with a T-shaped groove, and the upper end of the second locking bolt is fixedly connected with a rubber block that cooperates with the T-shaped groove.

[0012] Preferably, the angle adjustment assembly includes a rotating column, which is fixedly installed at the bottom center of the tray. A sphere is integrally connected to the lower end of the rotating column. A mounting base is installed on the outside of the sphere. An arc-shaped groove that slides with the sphere is opened inside the mounting base. An adjustment gap is opened through the mounting base. A fourth locking bolt is threadedly connected to the mounting base perpendicular to the direction of the adjustment gap. The other end of the fourth locking bolt passes through and extends to the outside of the mounting base. A fastening nut is threadedly connected to the end of the fourth locking bolt that extends to the outside of the mounting base.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. Significantly improved size adaptability, effectively solving the risk of equipment slippage and fall: Through the elastic clamping structure of springs, a second top plate, and silicone pads distributed on four sides of the placement platform component, it can adapt to the width of projectors of different sizes, providing stable clamping for small portable projectors to prevent lateral slippage, and providing full support for large engineering projectors to avoid uneven weight distribution. At the same time, the heat dissipation holes of the tray and the second anti-slip pad ensure heat dissipation of the equipment, overcoming the adaptability limitations caused by the fixed tray size in the existing technology.

[0015] 2. Balancing ease of movement with structural stability and simplifying leveling operations: The outrigger assembly, through adjustable outriggers, reinforced connecting rods, and bearings, can flexibly adjust the support angle to adapt to different scenarios, while the first locking bolt forms a rigid fixation to ensure stability; the threaded lifting and horizontal rotation locking of the lifting and rotating assembly, and the spherical arc-shaped sliding groove structure of the angle adjustment assembly, enable multi-dimensional rapid leveling and angle fixation, improving applicability to multiple scenarios. Attached Figure Description

[0016] Figure 1 A perspective view of the main structure of a flexibly adjustable projector support frame is provided for this utility model.

[0017] Figure 2 A three-dimensional view of the placement platform component structure in a flexibly adjustable projector support frame is provided for this utility model.

[0018] Figure 3 A three-dimensional view of the angle adjustment component structure in a flexibly adjustable projector support frame is provided for this utility model.

[0019] Figure 4 A cross-sectional view of an angle adjustment component in a flexibly adjustable projector support frame is provided for this utility model.

[0020] Figure 5 A cross-sectional view of a lifting and rotating component in a projector support frame that can be flexibly adjusted is provided for this utility model.

[0021] Figure 6 This utility model presents a three-dimensional view of the support leg assembly structure in a projector support frame that can be flexibly adjusted.

[0022] Legend: 1. Outrigger assembly; 11. Center seat; 12. Adjustable outrigger; 13. Hinge coupling; 14. Reinforcing rod; 15. Bearing; 16. First locking bolt; 17. First anti-slip pad; 18. First handle; 2. Lifting and rotating assembly; 21. Support seat; 211. T-shaped slide; 22. Central shaft; 23. First top plate; 24. Second locking bolt; 241. Rubber block; 25. Threaded lifting rod; 26. Adjusting platform; 27. Third locking bolt; 28. Outer tube; 29. ​​Limiting ring; 3. Angle adjustment assembly; 31. Rotating column; 32. Ball; 33. Mounting seat; 34. Arc-shaped slide; 35. Adjusting clearance; 36. Fourth locking bolt; 4. Placement platform assembly; 41. Tray; 42. Second anti-slip pad; 43. Heat dissipation hole; 44. Spring; 45. Second top plate; 46. Silicone gasket; 47. First handle. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention can also be implemented in other ways than those described herein, and therefore the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Please see Figure 1 , Figure 2 , Figure 5 and Figure 6An adjustable projector support frame includes a leg assembly 1. The upper end of the leg assembly 1 is sequentially equipped with a lifting and rotating assembly 2, an angle adjustment assembly 3, and a placement platform assembly 4. The leg assembly 1 includes a central base 11, with three adjustable legs 12 hinged to the bottom of the central base 11. A hinge coupling 13 is fixedly installed on the outer side of the middle end of each of the three adjustable legs 12. A reinforcing rod 14 is hinged inside each hinge coupling 13. A bearing 15 is hinged to the other end of the reinforcing rod 14. A first locking bolt 16 is threaded onto the side wall of the bearing 15. A first anti-locking bolt is fixedly installed at the bottom of each of the three adjustable legs 12. The sliding pad 17 and the bottom of the center seat 11 are fixedly installed with a first handle 18; the platform assembly 4 includes a tray 41 fixedly installed on the top of the angle adjustment assembly 3, a second anti-slip pad 42 is installed at the bottom of the inside of the tray 41, and a plurality of evenly distributed heat dissipation holes 43 are provided on the tray 41 and the second anti-slip pad 42. Eight springs 44 are installed on the inner side wall of the tray 41. The eight springs 44 are divided into four groups of two. The other end of each pair of springs 44 is connected to a second top plate 45. A silicone pad 46 is fixedly installed on the end of the second top plate 45 away from the springs 44. A second handle 47 is fixedly connected to the side of the tray 41.

[0026] It should be specifically noted that the lifting and rotating assembly 2 includes an outer tube 28 fixedly installed inside the center seat 11. A limit ring 29 is provided at the lower end of the outer tube 28. The bearing 15 is slidably connected to the outer tube 28, and the bearing 15 is always located at the upper end of the limit ring 29. The bottom end of the first locking bolt 16 penetrates the side wall of the bearing 15 and is tightly fitted to the side wall of the outer tube 28. The first handle 18 is fixedly installed on the outside of the outer tube 28.

[0027] Furthermore, the outer tube 28 is a hollow cylindrical structure, and an adjustment platform 26 is fixedly installed on the top of the outer tube 28. A threaded lifting rod 25 is threadedly connected to the center of the adjustment platform 26. The lower end of the threaded lifting rod 25 is located inside the outer tube 28, and the outer wall of the threaded lifting rod 25 does not contact the inner wall of the outer tube 28.

[0028] Furthermore, the side wall of the adjusting platform 26 is threaded with a third locking bolt 27. The bottom end of the third locking bolt 27 is tightly fitted with the side wall of the threaded lifting rod 25. The top of the threaded lifting rod 25 is fixedly installed with a first top plate 23. The upper end of the first top plate 23 is fixedly installed with a central shaft 22. The top of the central shaft 22 is rotatably installed with a support seat 21. The first top plate 23 is vertically threaded with second locking bolts 24 located on the left and right sides of the central shaft 22.

[0029] Furthermore, a T-shaped groove 211 is provided at the bottom of the support base 21, and a rubber block 241 that cooperates with the T-shaped groove 211 is fixedly connected to the upper end of the second locking bolt 24.

[0030] Please see Figure 1 , Figure 3 and Figure 4 The angle adjustment component 3 includes a rotating column 31, which is fixedly installed at the bottom center of the tray 41. A ball 32 is integrally connected to the lower end of the rotating column 31. A mounting base 33 is installed on the outside of the ball 32. An arc-shaped groove 34 that slides with the ball 32 is opened inside the mounting base 33. An adjustment gap 35 is opened through the mounting base 33. A fourth locking bolt 36 is threadedly connected to the mounting base 33 in a direction perpendicular to the adjustment gap 35. The other end of the fourth locking bolt 36 passes through and extends to the outside of the mounting base 33. A fastening nut is threadedly connected to the end of the fourth locking bolt 36 that extends to the outside of the mounting base 33.

[0031] Please see Figures 1-6 In specific use, the working principle of the entire equipment is as follows: Step 1, outrigger assembly setup and fixation: In the initial stage of use, first unfold the three adjustable outriggers 12 of the outrigger assembly 1. The adjustable outriggers 12 are hinged to the bottom of the center seat 11. Through the position of the sliding bearing 15 on the outer tube 28, the reinforcing connecting rod 14 is driven to rotate around the hinge coupling 13, thereby adjusting the opening angle of the adjustable outriggers 12 to adapt to different ground environments; the limiting ring 29 at the lower end of the outer tube 28 restricts the lower limit of the sliding of the bearing 15 to ensure adjustment safety; after determining the support range, tighten the first locking bolt 16 on the side wall of the bearing 15 so that its bottom end passes through the bearing 15 and fits tightly against the side wall of the outer tube 28, fixing the position of the bearing 15. At this time, the reinforcing connecting rod 14 forms a rigid support for the adjustable outriggers 12; the first anti-slip pad 17 at the bottom of the adjustable outriggers 12 increases the coefficient of friction to prevent the equipment from slipping; the first handle 18 at the bottom of the center seat 11 facilitates the overall handling of the equipment;

[0032] Step 2: Height Adjustment of the Lifting and Rotating Component: After the outriggers are fixed, the height is adjusted using the lifting and rotating component 2. The center of the inner part of the adjusting platform 26 fixed at the top of the outer tube 28 is threadedly connected to the threaded lifting rod 25. The lower end of the threaded lifting rod 25 is suspended inside the outer tube 28 and does not contact the inner wall. When the threaded lifting rod 25 is rotated, it moves up and down along the inner thread of the adjusting platform 26, driving the upper structure to rise and fall synchronously, thereby achieving overall height adjustment of the equipment. When the required height is reached, tighten the third locking bolt 27 on the side wall of the adjusting platform 26 so that its bottom end fits tightly against the side wall of the threaded lifting rod 25. The position of the threaded lifting rod 25 is locked by friction, thus completing the height fixation.

[0033] Step 3: Horizontal rotation adjustment of the lifting and rotating assembly: After the height is locked, the horizontal angle is adjusted; the upper end of the first top plate 23 at the top of the threaded lifting rod 25 is fixed with the central shaft 22, and the support seat 21 achieves 360° horizontal rotation through the central shaft 22; after rotating the support seat 21 to the target angle according to the projection direction requirements, tighten the second locking bolts 24 on the first top plate 23 located on the left and right sides of the central shaft 22, so that the rubber block 241 at the upper end of the bolt is in close contact with the T-shaped slide groove 211 at the bottom of the support seat 21, and the elastic friction of the rubber block 241 is used to restrict the rotation of the support seat 21, thus completing the horizontal rotation angle locking;

[0034] Step 4: Adjusting the pitch angle of the angle adjustment component: After the horizontal angle is fixed, the projection pitch angle is adjusted by the angle adjustment component 3; the rotating column 31 at the bottom center of the tray 41 is integrally connected with the ball 32, and the ball 32 is embedded in the arc-shaped slide groove 34 inside the mounting base 33, which can swing at multiple angles along the slide groove; push the tray 41 to drive the ball 32 to slide in the arc-shaped slide groove 34 until the projection angle meets the requirements; at this time, tighten the fourth locking bolt 36 on the mounting base 33 perpendicular to the direction of the adjustment gap 35, so that the mounting base 33 contracts through the adjustment gap 35, and the inner wall of the arc-shaped slide groove 34 forms a clamping force on the ball 32, which, together with the fastening nut at the end of the fourth locking bolt 36, achieves mechanical locking and fixes the tilt angle of the tray 41;

[0035] Step 5: Equipment Adaptation and Fixing for Platform Components: After adjusting the angle, place the projector. Place the projector in the tray 41. The second anti-slip pad 42 at the bottom of the tray 41 increases vertical friction. Eight sets of springs 44 installed on the inner sidewall of the tray 41 are distributed on the four sides in pairs. The springs 44 push the second top plate 45 inward, so that the silicone pad 46 at the end of the second top plate 45 makes flexible contact with the sidewall of the projector. The elastic extension and contraction of the springs 44 adapts to the width of projectors of different sizes, achieving lateral clamping and fixing to prevent the equipment from sliding. At the same time, the heat dissipation holes 43 on the tray 41 and the second anti-slip pad 42 form an air circulation channel to dissipate the heat generated by the projector in a timely manner, ensuring stable operation of the equipment.

[0036] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A flexible adjustable projector support stand comprising a leg assembly (1) characterised in that: The upper end of the outrigger assembly (1) is sequentially provided with a lifting and rotating assembly (2), an angle adjustment assembly (3), and a placement platform assembly (4); the outrigger assembly (1) includes a center seat (11), the bottom of which is hinged with three adjustable outriggers (12), and the middle ends of the three adjustable outriggers (12) are all fixedly installed with hinge couplings (13), each hinge coupling (13) is hinged with a reinforcing rod (14), the other end of which is hinged with a bearing (15), the side wall of which is threaded with a first locking bolt (16), and the bottom of the three adjustable outriggers (12) is fixedly installed with a first anti-slip pad (17). A first handle (18) is fixedly installed at the bottom; the placement platform assembly (4) includes a tray (41) fixedly installed on the top of the angle adjustment assembly (3), a second anti-slip pad (42) is installed at the bottom inside the tray (41), a plurality of evenly distributed heat dissipation holes (43) are provided on the tray (41) and the second anti-slip pad (42), eight springs (44) are installed on the inner side wall of the tray (41), the eight springs (44) are divided into four groups of two, and the other end of each pair of springs (44) is connected to a second top plate (45), a silicone pad (46) is fixedly installed on the end of the second top plate (45) away from the springs (44), and a second handle (47) is fixedly connected to the side of the tray (41).

2. A flexible adjustable projector support frame according to claim 1, wherein: The lifting and rotating assembly (2) includes an outer tube (28) fixedly installed inside the center seat (11). A limit ring (29) is provided at the lower end of the outer tube (28). The bearing (15) is slidably connected to the outer tube (28), and the bearing (15) is always located at the upper end of the limit ring (29). The bottom end of the first locking bolt (16) penetrates the side wall of the bearing (15) and fits tightly against the side wall of the outer tube (28). The first handle (18) is fixedly installed on the outside of the outer tube (28).

3. A flexible adjustable projector support frame according to claim 2, wherein: The outer tube (28) is a hollow cylindrical structure. An adjustment platform (26) is fixedly installed on the top of the outer tube (28). A threaded lifting rod (25) is threadedly connected to the center of the adjustment platform (26). The lower end of the threaded lifting rod (25) is located inside the outer tube (28). The outer wall of the threaded lifting rod (25) does not contact the inner wall of the outer tube (28).

4. A flexible adjustable projector support frame according to claim 3, wherein: The side wall of the adjustment platform (26) is threaded with a third locking bolt (27). The bottom end of the third locking bolt (27) is tightly fitted with the side wall of the threaded lifting rod (25). The top of the threaded lifting rod (25) is fixedly installed with a first top plate (23). The upper end of the first top plate (23) is fixedly installed with a central shaft (22). The top of the central shaft (22) is rotatably installed with a support seat (21). The first top plate (23) is vertically threaded with second locking bolts (24) located on the left and right sides of the central shaft (22).

5. A flexible adjustable projector support frame according to claim 4, wherein: The bottom of the support base (21) is provided with a T-shaped groove (211), and the upper end of the second locking bolt (24) is fixedly connected with a rubber block (241) that cooperates with the T-shaped groove (211).

6. A flexible adjustable projector support frame as claimed in claim 1, wherein: The angle adjustment assembly (3) includes a rotating column (31), which is fixedly installed at the bottom center of the tray (41). A ball (32) is integrally connected to the lower end of the rotating column (31). A mounting seat (33) is installed on the outside of the ball (32). An arc-shaped groove (34) is opened inside the mounting seat (33) to slide with the ball (32). An adjustment gap (35) is opened through the mounting seat (33). A fourth locking bolt (36) is threaded on the mounting seat (33) in a direction perpendicular to the adjustment gap (35). The other end of the fourth locking bolt (36) extends through and to the outside of the mounting seat (33). A fastening nut is threaded to the end of the fourth locking bolt (36) extending to the outside of the mounting seat (33).

Images