Projector lifting support

Abstract

The utility model discloses a projector lifting support which comprises a lifting outer rail, a sliding plate arranged in the lifting outer rail and a sliding plate matched with the sliding plate for lifting, a rotating assembly assembled with a projector is arranged at the top end of the sliding plate, and a torsional spring assembly is fixed to the upper portion of the right side in the lifting outer rail through a first pin. The inner side of the sliding plate is fixedly connected with the back face of the sliding plate through a mounting screw, a second pin is arranged in the middle of the left side in the sliding plate, the other end of the torsion spring assembly is matched and limited through the second pin, the flat torsion spring assembly is located between the sliding plate and the lifting outer rails, and the lifting stroke of 27 mm can be formed between the lifting outer rails through the torsion spring assembly. The space between the sliding plate and the lifting outer rail is not occupied, the lifting structure space in the support is saved, the thickness of the lifting support is reduced, and the lifting support can be better applied to projection lamps or other small household appliances and is wide in application range.

Description

Technical Field

[0001] This utility model relates to the field of projector bracket technology, specifically a projector lifting bracket. Background Technology

[0002] A projector, also known as a projector, is a device that projects images or videos onto a screen. It can be connected to computers, VCD players, DVD players, BD players, game consoles, DV players, etc., through different interfaces to play corresponding video signals. During the use of a projector, users often need a projector stand to place the projector.

[0003] Existing projector stands typically use springs in conjunction with sliding plates for lifting and sliding. For example, a movable lifting projector stand disclosed in patent publication number CN212672847U includes a first support plate, with support rods fixedly connected to the four corners of the top of the first support plate. A lifting rod is provided in the inner cavity of the support rod, and lifting holes are provided on both sides of the lifting rod. A first threaded rod is provided through the surface of the support rod, and the support rod, lifting hole and lifting rod are sequentially passed through the opposite side of the two first threaded rods in the lateral direction.

[0004] The aforementioned movable and height-adjustable projector bracket, through the coordinated use of a first threaded rod, a lifting rod, an inclined plate, a second limiting plate, a projector housing, a support rod, a rubber pad, a second threaded rod, a threaded sleeve, a slot rod, a sliding plate, a sliding plate groove, a limiting hole, a first connecting plate, a spring, a second support plate, and a lifting hole, solves the problem that existing projector brackets typically lack the function of adjusting the projection angle during use. However, because they use springs to achieve lifting, space needs to be provided inside the lifting rod to assemble the spring, increasing the weight of the bracket and making it unsuitable for use with small appliances like projectors, thus increasing the difficulty of assembling and using the projector.

[0005] Therefore, this utility model provides a projector lifting bracket that utilizes a torsion spring for lifting and reducing the thickness of the bracket. Utility Model Content

[0006] The purpose of this invention is to provide a projector lifting bracket to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A projector lifting bracket includes a lifting outer rail, a sliding plate disposed within the lifting outer rail, and a sliding plate that moves up and down in cooperation with the sliding plate. The top of the sliding plate is provided with a rotating component that is assembled with the projector. A torsion spring assembly is fixed to the upper right side of the lifting outer rail by a first pin.

[0009] The inner side of the sliding plate is fixedly connected to the back of the slide plate by mounting screws. A second pin is provided in the middle of the left side of the slide plate, and the second pin is used to limit the other end of the torsion spring assembly. The sliding plate slides and adjusts inside the lifting outer rail through the cooperation of the slide plate and the torsion spring assembly. When the slide plate and the sliding plate rise and adjust the support inside the lifting outer rail, the other end of the torsion spring assembly moves upward with the drive of the second pin. The torque of the torsion spring assembly provides elastic support to the rising sliding plate, thereby maintaining the stability of the sliding plate after rising and adjusting on the lifting outer rail.

[0010] Furthermore, the rotating assembly includes a U-shaped bracket assembled with the projector and connecting plates located on the left and right sides of the top of the sliding plate. The two ends of the U-shaped bracket are respectively attached to the outer side of the connecting plate and rotatably connected by a rotating shaft. The U-shaped bracket is used to assemble with the projector or other small household appliances. The connecting piece connects the projector or other small household appliances to the sliding plate as one unit, and the rotating shaft cooperates with the sliding plate to rotate the projector or small household appliances at the desired angle.

[0011] Furthermore, the inner side of the lifting outer rail is U-shaped and slides in a clasping manner with the limiting protrusion on the outer side of the slide plate. The lifting outer rail is connected to the slide plate in a clasping manner, maintaining the stability of the projector or other small household appliances by sliding the slide plate on the lifting outer rail.

[0012] Furthermore, limit bolts are screwed onto the middle and lower parts of the inner side of the lifting outer rail. The limit bolts are located in the middle of the lifting outer rail and cooperate with the arc groove at the top of the slide plate to limit the rising or falling height of the slide plate. When the sliding plate rises or falls on the lifting outer rail via the slide plate, the limit bolts are located in the arc groove to limit the sliding position on the slide plate, so as to avoid the slide plate rising or falling too much and causing instability in the connection between the slide plate and the lifting outer rail. The distance between the two limit bolts is the travel distance of the slide plate sliding in the lifting outer rail.

[0013] Furthermore, the torsion spring assembly includes a first torsion spring and a second torsion spring, with the annular openings at both ends of the first and second torsion springs overlapping. The first pin passes through the annular opening at one end of the first and second torsion springs, and the first pin limits the annular opening at one end of the first and second torsion springs to the inner side of the lifting outer rail, thus preventing the torsion spring assembly from shifting when it is used in conjunction with the elastic support of the sliding plate.

[0014] The inner side of the lifting outer rail is provided with a limiting post that limits the other end of the first torsion spring and the second torsion spring. The second pin is located on the outer side of the ring opening and works with the limiting post to limit the other end of the torsion spring assembly. The limiting post and the second pin limit the ring opening of the other end of the torsion spring assembly. When the skateboard is lifted and slid, the other end of the torsion spring assembly is moved, and then the torsion spring section in the middle of the torsion spring assembly generates a torsional force to provide sliding support between the skateboard and the lifting outer rail.

[0015] Furthermore, the outer side of the sliding plate and the bottom side of the lifting outer rail are on the same plane, which reduces the thickness of the sliding plate after assembly with the lifting outer rail and reduces the volume of the bracket after assembly, which is beneficial for assembling with projectors or other small household appliances.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The projector lifting bracket is assembled with the lifting outer rail on the inner side of the sliding plate via a sliding plate and a torsion spring assembly. The lifting outer rail is used to fix the projector or other small household appliances to the platform. The sliding plate is installed with the projector or other small household appliances via a rotating assembly at the top.

[0018] When a projector or other small household appliance is raised as needed, the user applies force to lift the sliding plate. The sliding plate rises inside the lifting outer rail. The slide plate inside the sliding plate moves upward through the second pin and the limiting post, causing the other end of the torsion spring assembly to move upward. The torsion spring segment in the middle of the torsion spring assembly generates a torsional force as the other end of the torsion spring assembly moves. When the other end of the torsion spring assembly is above the lifting outer rail, the reset torsional force generated by the torsion spring segment in the middle of the torsion spring assembly provides elastic support between the slide plate and the lifting outer rail, thereby achieving the purpose of supporting the projector or other small household appliances to rise through the sliding plate.

[0019] When the projector or other small household appliances are lowered as needed, the user presses down on the sliding plate, causing it to descend inside the lifting outer rail. The slide plate inside the sliding plate moves down the other end of the torsion spring assembly via the second pin and the limiting post. The torsion spring section in the middle of the torsion spring assembly generates a torsional force as the other end of the torsion spring assembly moves. When the other end of the torsion spring assembly is below the lifting outer rail, the restoring torsional force generated by the torsion spring section in the middle of the torsion spring assembly provides elastic support between the slide plate and the lifting outer rail, thereby achieving the purpose of supporting the projector or other small household appliances as they rise via the sliding plate.

[0020] Because the torsion spring assembly is flat and located between the slide plate and the lifting outer rail, the projector assembly can be rotated 90 degrees on the sliding plate to adjust the operating angle. The torsion spring assembly can also create a 27mm lifting stroke between the lifting outer rail, without occupying the space between the slide plate and the lifting outer rail. This saves space in the lifting structure of the bracket, thereby reducing the thickness of the lifting bracket. It can be better applied to projection lamps or other small household appliances, and has a wide range of applications. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This utility model Figure 1 A schematic diagram of the exploded structure;

[0023] Figure 3This is a schematic diagram of the connection between the torsion spring assembly and the lifting outer rail of this utility model;

[0024] Figure 4 This is a schematic diagram of the connection between the torsion spring assembly and the slide plate of this utility model;

[0025] Figure 5 This is a schematic diagram showing the state of the torsion spring assembly when the sliding plate of this utility model descends;

[0026] Figure 6 This is a schematic diagram showing the state of the torsion spring assembly when the sliding plate of this utility model rises;

[0027] Figure 7 This is a schematic diagram of the structure of the present invention after being assembled with a projector.

[0028] In the diagram: 1. Lifting outer rail; 2. Slide plate; 3. Sliding plate; 4. Rotary shaft assembly; 5. First pin; 6. Torsion spring assembly; 7. Second pin; 8. U-shaped bracket; 9. Connecting plate; 10. Limiting protrusion; 11. Limiting bolt; 12. Arc groove; 13. First torsion spring; 14. Second torsion spring; 15. Ring opening; 16. Limiting post. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-7 This utility model provides a technical solution:

[0031] A projector lifting bracket includes a lifting outer rail 1, a sliding plate 2 disposed inside the lifting outer rail 1, and a sliding plate 3 that moves and lifts in cooperation with the sliding plate 2. The top of the sliding plate 3 is provided with a rotating component 4 that is assembled with the projector. A torsion spring component 6 is fixed to the upper right side of the lifting outer rail 1 by a first pin 5.

[0032] The inner side of the sliding plate 3 is fixedly connected to the back of the slide plate by mounting screws. The middle of the left side of the slide plate is provided with a second pin 7, which limits the other end of the torsion spring assembly 6. The sliding plate 3 slides and adjusts inside the lifting outer rail 1 through the cooperation of the slide plate and the torsion spring assembly 6. When the slide plate and the sliding plate 3 rise and adjust the support inside the lifting outer rail 1, the other end of the torsion spring assembly 6 moves upward with the drive of the second pin 7. The torque of the torsion spring assembly 6 provides elastic support to the rising sliding plate 3, thereby maintaining the stability of the sliding plate 3 after rising and adjusting on the lifting outer rail 1.

[0033] The rotating assembly 4 includes a U-shaped bracket 8 that is assembled with the projector and connecting plates 9 located on the left and right sides of the top of the sliding plate 3. The two ends of the U-shaped bracket 8 are respectively attached to the outer side of the connecting plate 9 and rotatably connected by a rotating shaft. The U-shaped bracket 8 is used to assemble with the projector or other small household appliances. The connecting parts connect the projector or other small household appliances to the sliding plate 3 as one unit, and the rotating shaft cooperates with the sliding plate 3 to rotate the projector or small household appliances at the desired angle.

[0034] The inner side of the lifting outer rail 1 is U-shaped and slides in a clasping manner with the limiting protrusion 10 on the outer side of the slide plate. The lifting outer rail 1 is connected to the slide plate 2 in a clasping manner, so as to maintain the stability of the projector or other small household appliances by sliding the slide plate 3 on the lifting outer rail 1 through the slide plate 2.

[0035] Limiting bolts 11 are screwed into the middle and lower part of the inner side of the lifting outer rail 1. The limiting bolts 11 are located in the middle of the lifting outer rail 1 and cooperate with the arc groove 12 at the top of the slide plate to limit the rising height of the slide plate 2. When the sliding plate 3 rises on the lifting outer rail 1 via the slide plate 2, the limiting bolts 11 are located in the arc groove 12 to limit the sliding position of the slide plate 2, so as to prevent the slide plate 2 from rising too much and causing instability in the connection between the slide plate and the lifting outer rail 1. The distance between the two limiting bolts 11 is the travel distance of the slide plate 2 in the lifting outer rail.

[0036] The torsion spring assembly 6 includes a first torsion spring 13 and a second torsion spring 14. The annular openings 15 at both ends of the first torsion spring 13 and the second torsion spring 14 overlap. A first pin 5 passes through the annular opening 15 at one end of the first torsion spring 13 and the second torsion spring 14. Figure 4 As shown, the first pin 5 restricts the annular opening 15 at one end of the first torsion spring 13 and the second torsion spring 14 to the inner side of the lifting outer rail 1, so as to prevent the torsion spring assembly 6 from shifting when it is in conjunction with the elastic support of the sliding plate.

[0037] like Figure 3 As shown, the inner side of the lifting outer rail 1 is provided with a limiting post 16 that limits the other end of the first torsion spring 13 and the second torsion spring 14. The second pin 7 is provided on the outer side of the ring 15 to cooperate with the limiting post 16 to limit the other end of the torsion spring assembly 6. The limiting post 16 and the second pin 7 limit the ring 15 at the other end of the torsion spring assembly 6. When the slide plate 2 is lifted and slid, it drives the other end of the torsion spring assembly 6 to move, and then the torsion spring section in the middle of the torsion spring assembly 6 generates a torsional force to support the sliding between the slide plate 2 and the lifting outer rail 1.

[0038] The outer side of the sliding plate 3 is on the same plane as the bottom side of the lifting outer rail 1, which reduces the thickness of the sliding plate 3 after assembly with the lifting outer rail 1 and reduces the volume of the bracket after assembly, which is beneficial for assembling with projectors or other small household appliances.

[0039] The projector lifting bracket is assembled with the lifting outer rail 1 on the inner side of the sliding plate 3 via a sliding plate and a torsion spring assembly 6, as shown in the figure. The lifting outer rail 1 is used to fix the projector or other small household appliances to the platform. The sliding plate 3 is installed with the projector or other small household appliances via the rotating assembly 4 at the top.

[0040] like Figure 6 As shown, when the projector or other small household appliances are raised as needed, the user applies force to lift the sliding plate 3. The sliding plate 3 rises inside the lifting outer rail 1. The slide plate inside the sliding plate 3 moves upward through the second pin 7 and the limiting post 16, which drives the other end of the torsion spring assembly 6 to move upward. The torsion spring section in the middle of the torsion spring assembly 6 generates torsional force as the other end of the torsion spring assembly 6 moves. When the other end of the torsion spring assembly 6 is above the lifting outer rail 1, the reset torsional force generated by the torsion spring section in the middle of the torsion spring assembly 6 provides elastic support between the slide plate and the lifting outer rail 1, thereby achieving the purpose of supporting the projector or other small household appliances to rise through the sliding plate 3.

[0041] like Figure 5 As shown, when the projector or other small household appliances are lowered according to usage needs, the user presses down on the sliding plate 3, and the sliding plate 3 descends inside the lifting outer rail 1. The slide plate inside the sliding plate 3 drives the other end of the torsion spring assembly 6 to descend through the second pin 7 and the limiting post 16. The torsion spring section in the middle of the torsion spring assembly 6 generates torsional force as the other end of the torsion spring assembly 6 moves. When the other end of the torsion spring assembly 6 is located at the lower part of the lifting outer rail 1, the reset torsional force generated by the torsion spring section in the middle of the torsion spring assembly 6 generates elastic support between the slide plate and the lifting outer rail 1, thereby achieving the purpose of supporting the projector or other small household appliances to rise through the sliding plate 3.

[0042] Since the torsion spring assembly 6 is flat and located between the slide plate and the lifting outer rail 1, the projector assembly can be rotated 90 degrees on the sliding plate 3 by rotating the assembly 4 to adjust the operating angle. Through the torsional force of the torsion spring assembly 6 and the limiting bolts 11 at the middle and lower part of the inner side of the lifting outer rail 1, a lifting stroke of 27mm can be formed between the lifting outer rail 1. This will not occupy the space between the slide plate and the lifting outer rail 1, saving the lifting structure space in the bracket, thereby reducing the thickness of the lifting bracket. It can be better applied to projection lamps or other small household appliances, and has a wide range of applications.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A projector lifting bracket, comprising a lifting outer rail (1), a sliding plate (2) disposed inside the lifting outer rail (1), and a sliding plate (3) that cooperates with the sliding plate (2) for lifting, wherein the top of the sliding plate (3) is provided with a rotating assembly for mounting the projector, characterized in that: The upper right side of the lifting outer rail (1) is fixed with a torsion spring assembly (6) by a first pin (5); The inner side of the sliding plate (3) is fixedly connected to the back of the slide plate by mounting screws. The middle left side of the slide plate is provided with a second pin (7) and the other end of the torsion spring assembly (6) is limited by the second pin (7). The sliding plate (3) slides and adjusts inside the lifting outer rail (1) by the cooperation of the slide plate and the torsion spring assembly (6).

2. The projector lifting bracket according to claim 1, characterized in that: The rotating assembly includes a U-shaped bracket (8) assembled with the projector and connecting plates (9) located on the left and right sides of the top of the sliding plate (3). The two ends of the U-shaped bracket (8) are respectively attached to the outer side of the connecting plate (9) and rotatably connected by a rotating shaft.

3. The projector lifting bracket according to claim 1, characterized in that: The inner side of the lifting outer rail (1) is U-shaped and slides in a clasping manner with the limiting protrusion (10) on the outer side of the slide plate.

4. A projector lifting bracket according to claim 1, characterized in that: Limiting bolts (11) are screwed into the middle and lower parts of the inner side of the lifting outer rail (1). The limiting bolts (11) are located in the middle of the lifting outer rail (1) and cooperate with the arc groove (12) at the top of the slide plate to limit the rising height of the slide plate.

5. A projector lifting bracket according to claim 1, characterized in that: The torsion spring assembly (6) includes a first torsion spring (13) and a second torsion spring (14), the annular openings (15) at both ends of the first torsion spring (13) and the second torsion spring (14) overlap, and the first pin (5) passes through the annular opening (15) at one end of the first torsion spring (13) and the second torsion spring (14). The inner side of the lifting outer rail (1) is provided with a limiting post (16) that limits the other end of the first torsion spring (13) and the second torsion spring (14). The second pin (7) is located on the outside of the ring (15) and cooperates with the limiting post (16) to limit the other end of the torsion spring assembly (6).

6. A projector lifting bracket according to claim 1, characterized in that: The outer side of the sliding plate (3) and the bottom side of the lifting outer rail (1) are on the same plane.

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