Projector desktop support

Abstract

The utility model discloses a projector desktop support which comprises a base, two stand columns are arranged on the base in a spaced mode, each stand column is provided with a sliding groove extending in the vertical direction, sliding block assemblies are arranged in the sliding grooves in a sliding mode, and the two sliding block assemblies are each provided with a rotating piece rotating around a certain horizontal axis. The rotating pieces are connected with connecting pieces extending out of the side wall of the stand column, the two connecting pieces are oppositely arranged, and the sliding block assemblies are provided with elastic mechanisms which enable the sliding block assemblies to be stable after lifting movement relative to the sliding grooves and enable the rotating pieces to be stable after rotating relative to the sliding block assemblies. During use, the projector is installed on the two connecting pieces, the sliding block assembly moves up and down along the sliding groove to adjust the projection height, the rotating piece rotates relative to the sliding block assembly to adjust the projection angle, and the elastic mechanism acts on the sliding block assembly and the rotating piece at the same time to synchronously stabilize the projection angle and the projection height of the projector. The adjusting mode is very convenient; and the projector is supported by the two stand columns and the connecting piece together, so that the projector is stably and reliably supported.

Description

Technical Field

[0001] The utility model relates to the technical field of projection equipment, in particular to a projector desktop bracket. Background Art

[0002] At present, projector desktop stands are widely used in home life. The stands can adjust the projection angle of the projector through the pan-tilt to achieve multi-angle adjustment, so as to project the picture on the wall or ceiling. Among them, the pan-tilt of the general stand adopts a universal ball head. Although it can achieve adjustment at any angle, the adjustment operation is very inconvenient due to too much freedom, and it is difficult to accurately fine-tune the angle. Moreover, the stand only achieves the angle adjustment of the projector, but not the height adjustment. It is easy for the projected picture to fail to fully enter the required projection area, which is not conducive to matching more application scenarios.

[0003] In addition, ordinary brackets use a single-arm connection method, which leads to unstable support. After the projector adjusts the angle, it is easy to shake for a certain period of time, and even the single arm may bend due to insufficient load-bearing after long-term use. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a projector desktop bracket which is convenient to adjust the projection angle and projection height and provides stable and reliable support for the projector.

[0005] According to an embodiment of the utility model, a projector desktop bracket includes: a base, two columns are arranged on the base at intervals, the columns are each provided with a slide groove extending in the vertical direction, a slider assembly is slidably arranged in the slide groove, the two slider assemblies are respectively provided with a rotating part rotating around a horizontal axis, the rotating part is connected to a connecting part extending from the side wall of the column, the two connecting parts are arranged opposite to each other and are used to connect the projector together, the slider assemblies are each provided with an elastic mechanism to stabilize it after it is lifted and lowered relative to the slide groove, and the elastic mechanism can act on the corresponding rotating part to stabilize the rotating part after it is rotated relative to the slider assembly.

[0006] A projector desktop bracket according to an embodiment of the utility model has at least the following beneficial effects:

[0007] When the above projector desktop bracket is in use, the projector is installed on two connecting parts. When the projector is lifted or pressed down, the slider assembly is moved up and down along the slide groove to adjust the projection height. When the projector is rotated around the horizontal axis, the rotating part is rotated relative to the slider assembly to adjust the projection angle. The elastic mechanism is used to act on the slider assembly and the rotating part at the same time to synchronously stabilize the projection angle and projection height of the projector, and the adjustment method is very convenient. Moreover, the two columns and the two connecting parts jointly support the projector, improve the shaking situation after adjusting the position of the projector, and provide stable and reliable support for the projector.

[0008] In some embodiments of the present invention, the slider assembly includes two clamping blocks arranged face to face, the rotating member is located between the two clamping blocks, the elastic mechanism includes a pad and a first spring member, the pad is located between the side of the clamping block facing away from the rotating member and the slide slot, and the two ends of the first spring member respectively abut against the pad and the clamping block to drive the two clamping blocks to clamp the rotating member together and drive the pad to abut against the slide slot to limit the upward and downward movement of the slider assembly.

[0009] In some embodiments of the utility model, a pad is provided between the side of each clamping block facing away from the rotating member and the sliding groove, and a hole is provided at the upper end and the lower end of each clamping block facing away from the rotating member. The pad is provided with plugs extending into the hole one by one on the side walls of the corresponding clamping block, and the plugs are penetrated by the first spring member located in the hole.

[0010] In some embodiments of the utility model, the rotating part includes a cylindrical portion arranged around the horizontal axis, the outer peripheral wall of the cylindrical portion is provided with a plurality of circumferentially distributed first tooth grooves, the side of the clamping block away from the pad is provided with an arc concave surface matching the cylindrical portion, and a plurality of second tooth grooves meshing with the first tooth grooves are formed on the arc concave surface, and when the first spring member drives the second tooth grooves to combine with the first tooth grooves, there is a movable gap between the pad and the corresponding clamping block.

[0011] In some embodiments of the utility model, a vertical give way groove connected to the slide groove is formed on the side wall of the column, a through hole coaxial with the cylindrical portion is penetrated through the middle portion, the through hole is opposite to the vertical give way groove, the connecting member is a connecting bolt penetrated through the through hole and the vertical give way groove, the screw portion of the connecting bolt is used to connect the projector, and the head of the connecting bolt can drive the end face of the cylindrical portion to rest against the wall panel where the vertical give way groove is located.

[0012] In some embodiments of the present invention, the screw rods of the two connecting bolts are respectively screwed on opposite sides of the projector so that the projector is mounted between the two columns.

[0013] In some embodiments of the utility model, the screw parts of the two connecting bolts are threadedly tightened on the cross arm, and a pan-tilt seat for connecting the projector is provided in the middle of the cross arm. A rectangular support frame is formed between the cross arm, the two columns and the base.

[0014] In some embodiments of the present invention, the width of the vertical clearance groove matches the outer diameter of the screw portion of the connecting bolt.

[0015] In some embodiments of the utility model, the column includes a rectangular bar and a long cover plate, one side wall of the rectangular bar is recessed inward and extends along its length direction to form the slide groove, the long cover plate is snap-connected to the rectangular bar to close the opening of the slide groove, the long cover plate is penetrated by a vertical give way groove extending along its length direction, and the connecting piece passes outward along the vertical give way groove.

[0016] In some embodiments of the utility model, a non-circular plug is provided at the lower end of the column, the base is provided with a plug-in groove matching the plug, and the bottom of the base is provided with a fastening screw that passes upward through the plug-in groove to threadably connect the plug.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 This is a structural schematic diagram of the first embodiment of the projector desktop bracket of the utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the structural decomposition of an embodiment;

[0021] Figure 3 for Figure 1 A schematic cross-sectional view of a single column at a connecting piece of an embodiment;

[0022] Figure 4 for Figure 2 A cross-sectional schematic diagram of the rotating member, two clamping blocks and the elastic mechanism located in the column;

[0023] Figure 5 for Figure 2 A schematic diagram of the structural breakdown of the rotating member, two clamping blocks and the elastic mechanism;

[0024] Figure 6 This is a schematic diagram of the internal structure of a second embodiment of the projector desktop bracket of the present utility model.

[0025] Reference numerals:

[0026] Base 100; plug-in groove 110; fastening screw 120; column 200; rectangular bar 201; long cover plate 202; slide groove 210; vertical clearance groove 220; plug block 230; slider assembly 300; clamping block 310; hole groove 311; arc concave surface 312; second toothed groove 313; rotating part 400; cylindrical part 410; through hole 411; first toothed groove 420; connecting part 500; elastic mechanism 600; pad 610; plug column 611; first spring part 620; cross arm 700; pan-tilt seat 710. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientations or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside", etc., are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] See also Figures 1 to 5 A projector desktop bracket according to an embodiment of the utility model comprises: a base 100, two columns 200 are arranged on the base 100 at intervals, the columns 200 are each provided with a slide groove 210 extending in the vertical direction, a slider assembly 300 is slidably arranged in the slide groove 210, the two slider assemblies 300 are respectively provided with a rotating member 400 rotating around a horizontal axis, the rotating member 400 is connected with a connecting member 500 extending from the side wall of the column 200, the two connecting members 500 are arranged opposite to each other and are used to connect the projector together, the slider assembly 300 is each provided with an elastic mechanism 600 to stabilize it after it is lifted and moved relative to the slide groove 210, and the elastic mechanism 600 can act on the corresponding rotating member 400 to stabilize the rotating member 400 after it is rotated relative to the slider assembly 300.

[0032] When the above projector desktop bracket is in use, the projector is installed on the two connecting members 500. When the projector is lifted or pressed down, the slider assembly 300 is moved up and down along the slide groove 210 to adjust the projection height. When the projector is rotated around the horizontal axis, the rotating member 400 is rotated relative to the slider assembly 300 to adjust the projection angle. The elastic mechanism 600 acts on the slider assembly 300 and the rotating member 400 at the same time to synchronously stabilize the projection angle and projection height of the projector, and the adjustment method is very convenient. Moreover, the two columns 200 and the two connecting members 500 jointly support the projector, which improves the shaking situation after adjusting the position of the projector, and provides stable and reliable support for the projector. It should be noted that when the output end of the projector is facing vertically upward to project the image onto the ceiling, the size of the projected image can be directly adjusted by adjusting the height of the projector. However, when the projected wall is tilted, if the height of the projector is limited, even if the output end of the projector is perpendicular to the projected wall, the projected image may not be fully projected onto the tilted wall. This problem can be solved by raising and lowering the height of the projector.

[0033] See also Figure 2 and Figure 3In some embodiments of the utility model, the slider assembly 300 includes two clamping blocks 310 arranged face to face, the rotating member 400 is located between the two clamping blocks 310, the elastic mechanism 600 includes a pad 610 and a first spring member 620, the pad 610 is located between the side of the clamping block 310 away from the rotating member 400 and the slide slot 210, and the two ends of the first spring member 620 respectively abut against the pad 610 and the clamping block 310 to drive the two clamping blocks 310 to clamp the rotating member 400 together and drive the pad 610 to abut against the slide slot 210 to limit the upward and downward movement of the slider assembly 300. It is understandable that under the action of the first spring member 620, the two clamping blocks 310 clamp the rotating member 400, so that the projectors on the two connecting members 500 are not easy to rotate around the horizontal axis, thereby stabilizing the projection angle of the projector. At the same time, the pad 610 elastically abuts against the inner wall of the slide slot 210 under the action of the first spring member 620, and relies on the friction between the pad 610 and the slide slot 210 to prevent the projector from falling due to gravity, thereby stabilizing the height position of the projector. When the height position of the projector needs to be adjusted, an external force that overcomes the friction between the pad 610 and the slide slot 210 needs to be applied to achieve the lifting and lowering movement of the projector. When the angular position of the projector needs to be adjusted, a torque that overcomes the clamping force of the two clamping blocks 310 on the rotating member 400 needs to be applied to achieve the rotation of the projector.

[0034] It is understandable that the above functions can be achieved by configuring one of the clamping blocks 310 with a first spring member 620 and a pad 610. However, in order to achieve a more stable limiting effect, in some embodiments of the utility model, a pad 610 is provided between the side of each clamping block 310 that faces away from the rotating member 400 and the slide groove 210. In order to prevent the first spring member 620 from twisting and affecting the reliability of the elastic restoring force, a hole groove 311 is provided at the upper and lower ends of the side of each clamping block 310 that faces away from the rotating member 400. The pad 610 is provided with a one-to-one corresponding plug post 611 extending into the hole groove 311 on the side wall of the corresponding clamping block 310. The plug posts 611 are all penetrated by the first spring member 620 located in the hole groove 311.

[0035] See also Figures 3 to 5In some embodiments of the utility model, the rotating member 400 includes a cylindrical portion 410 arranged around the horizontal axis, and the outer peripheral wall of the cylindrical portion 410 is provided with a plurality of first tooth-shaped grooves 420 distributed circumferentially, and the side of the clamping block 310 away from the pad 610 is provided with a circular arc concave surface 312 matched with the cylindrical portion 410, and the circular arc concave surface 312 is formed with a plurality of second tooth-shaped grooves 313 meshing with the first tooth-shaped grooves 420, and when the first spring member 620 drives the second tooth-shaped grooves 313 to be combined with the first tooth-shaped grooves 420, there is an active gap between the pad 610 and the corresponding clamping block 310. It can be understood that the reliability of preventing the rotating member 400 from rotating around the horizontal axis by relying solely on the friction between the rotating member 400 and the clamping block 310 is insufficient, and greater rotation resistance can be obtained by meshing the first tooth-shaped grooves 420 with the second tooth-shaped grooves 313. In addition, when the angle position of the projector needs to be adjusted, the separation of the first tooth-shaped groove 420 and a certain second tooth-shaped groove 313 will cause the two clamping blocks 310 to move away from each other, and the setting of the movable gap can avoid interference.

[0036] See also Figure 4 and Figure 5 In some embodiments of the utility model, the side wall of the column 200 is provided with a vertical clearance groove 220 connected to the slide groove 210, and the middle part of the cylindrical part 410 is provided with a coaxial through-hole 411, and the through-hole 411 is directly opposite to the vertical clearance groove 220. The connecting member 500 is a connecting bolt penetrated through the through-hole 411 and the vertical clearance groove 220, and the screw part of the connecting bolt is used to connect the projector, and the head of the connecting bolt can drive the end face of the cylindrical part 410 to abut against the wall plate where the vertical clearance groove 220 is located. It can be understood that the connecting bolt can not only serve as the rotating shaft of the projector, but also increase the friction force to prevent the projector from falling when the projector is connected, so as to achieve the effect of one thing serving two purposes.

[0037] See also Figure 1 and Figure 2 In some embodiments of the utility model, the screw parts of the two connecting bolts are respectively threadedly tightened on the opposite sides of the projector so that the projector is mounted between the two columns 200. The projector is installed in the simplest way by directly driving the projector to move up and down and rotate, and the supporting effect on the projector is also stable and reliable.

[0038] See also Figure 6In some embodiments of the utility model, the screw parts of the two connecting bolts are both screwed on the cross arm 700, and the middle part of the cross arm 700 is provided with a pan / tilt seat 710 for connecting the projector, and the cross arm 700, the two columns 200 and the base 100 form a rectangular support frame. The above structure not only has a stable and reliable supporting effect on the projector, but also the size of the installed projector is not limited by the distance between the columns 200, and can be applied to projectors of different sizes.

[0039] In some embodiments of the utility model, the groove width of the vertical give way groove 220 matches the outer diameter of the screw portion of the connecting bolt. When the projector is raised or lowered, the connecting bolt moves up and down along the extension direction of the vertical give way groove 220. The groove width of the vertical give way groove 220 matches the outer diameter of the screw portion of the connecting bolt and can also serve as a lifting guide.

[0040] See also Figure 2 and Figure 3 In some embodiments of the utility model, the column 200 includes a rectangular strip 201 and a long cover plate 202. One side wall of the rectangular strip 201 is recessed inward and extends along its length direction to form the slide groove 210. The long cover plate 202 is snap-connected to the rectangular strip 201 to close the opening of the slide groove 210. The long cover plate 202 is penetrated by a vertical clearance groove 220 extending along its length direction, and the connecting member 500 passes outward along the vertical clearance groove 220. During assembly, the slider assembly 300, the rotating member 400 and the elastic mechanism 600 are first placed in the slide groove 210, and then the long cover plate 202 is connected to the rectangular strip 201, which helps to reduce the difficulty of assembling the slider assembly 300, the rotating member 400 and the elastic mechanism 600.

[0041] See also Figure 2 In some embodiments of the utility model, a non-circular plug block 230 is provided at the lower end of the column 200, the base 100 is provided with a plug-in sink 110 matching the plug block 230, and the bottom of the base 100 is provided with a fastening screw 120 that is upwardly penetrated through the plug-in sink 110 to threadably connect the plug block 230. It can be understood that the above structure can realize convenient assembly between the base 100 and the column 200, and can also realize disassembly between the base 100 and the column 200 to reduce the packaging volume and reduce the transportation cost.

[0042] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 claims and their equivalents.

Claims

1. A projector desktop bracket, characterized in that: include: A base (100), wherein two columns (200) are arranged at intervals on the base (100), each of the columns (200) is provided with a slide groove (210) extending in a vertical direction, a slider assembly (300) is slidably arranged in the slide groove (210), and the two slider assemblies (300) are respectively provided with a rotating member (400) rotating around a certain horizontal axis, and the rotating member (400) is connected to a connecting member (500) extending from the side wall of the column (200), and the two connecting members (500) are arranged facing each other and are used to be connected to a projector together, and each of the slider assemblies (300) is provided with an elastic mechanism (600) for stabilizing the slider assemblies (300) after being lifted and moved relative to the slide groove (210), and the elastic mechanism (600) can act on the corresponding rotating member (400) to stabilize the rotating member (400) after being rotated relative to the slider assembly (300).

2. A projector desktop bracket according to claim 1, characterized in that: The slider assembly (300) includes two clamping blocks (310) arranged face to face, the rotating member (400) is located between the two clamping blocks (310), the elastic mechanism (600) includes a pad (610) and a first spring member (620), the pad (610) is located between the side of the clamping block (310) away from the rotating member (400) and the slide groove (210), and the two ends of the first spring member (620) respectively abut against the pad (610) and the clamping block (310) to drive the two clamping blocks (310) to clamp the rotating member (400) together and drive the pad (610) to abut against the slide groove (210) to limit the upward and downward movement of the slider assembly (300).

3. The projector desktop bracket according to claim 2, characterized in that: A pad (610) is arranged between the side of each clamping block (310) facing away from the rotating member (400) and the sliding groove (210), and a hole groove (311) is arranged at the upper end and the lower end of each clamping block (310) facing away from the rotating member (400). The pad (610) is provided with a plug (611) extending into the hole groove (311) one by one on the side wall of the corresponding clamping block (310), and the plug (611) is penetrated by the first spring member (620) located in the hole groove (311).

4. The projector desktop bracket according to claim 2, characterized in that: The rotating member (400) includes a cylindrical portion (410) arranged around the horizontal axis, the outer peripheral wall of the cylindrical portion (410) is provided with a plurality of circumferentially distributed first tooth-shaped grooves (420), the side of the clamping block (310) away from the pad (610) is provided with an arc concave surface (312) matching with the cylindrical portion (410), and the arc concave surface (312) is formed with a plurality of second tooth-shaped grooves (313) meshing with the first tooth-shaped grooves (420), and when the first spring member (620) drives the second tooth-shaped grooves (313) to combine with the first tooth-shaped grooves (420), there is a movable gap between the pad (610) and the corresponding clamping block (310).

5. The projector desktop bracket according to claim 4, characterized in that: The side wall of the column (200) is provided with a vertical clearance groove (220) connected to the slide groove (210); the middle of the cylindrical portion (410) is penetrated by a through hole (411) coaxial with the cylindrical portion (410); the through hole (411) is directly opposite to the vertical clearance groove (220); the connecting member (500) is a connecting bolt passing through the through hole (411) and the vertical clearance groove (220); the screw portion of the connecting bolt is used to connect the projector; the head of the connecting bolt can drive the end face of the cylindrical portion (410) to abut against the wall panel where the vertical clearance groove (220) is located.

6. The projector desktop bracket according to claim 5, characterized in that: The screw rods of the two connecting bolts are respectively screwed on opposite sides of the projector so that the projector is mounted between the two columns (200).

7. The projector desktop bracket according to claim 5, characterized in that: The screw parts of the two connecting bolts are both threadedly screwed onto the cross arm (700); a pan-tilt seat (710) for connecting a projector is provided in the middle of the cross arm (700); and a rectangular support frame is formed between the cross arm (700), the two upright posts (200) and the base (100).

8. The projector desktop bracket according to claim 5, characterized in that: The width of the vertical clearance groove (220) matches the outer diameter of the screw rod portion of the connecting bolt.

9. The projector desktop bracket according to claim 1, characterized in that: The column (200) comprises a rectangular strip (201) and a long cover plate (202); one side wall of the rectangular strip (201) is recessed inward and extends along its length direction to form the slide groove (210); the long cover plate (202) is snap-connected to the rectangular strip (201) to close the opening of the slide groove (210); a vertical clearance groove (220) extending along its length direction is penetrated by the long cover plate (202); the connecting member (500) passes outward along the vertical clearance groove (220).

10. The projector desktop bracket according to claim 1, characterized in that: A non-circular plug-in block (230) is provided at the lower end of the column (200), the base (100) is provided with a plug-in groove (110) matching the plug-in block (230), and a fastening screw (120) is provided at the bottom of the base (100) and is upwardly penetrated through the plug-in groove (110) to be threadedly connected to the plug-in block (230).

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