Laser projector support rotating structure

Abstract

The utility model relates to a laser projector support rotating structure which comprises a supporting bottom plate, a rotating seat plate is rotationally connected to the supporting bottom plate, supporting arms are fixed to the two side portions of the rotating seat plate respectively, and a hollow rotating shaft assembly rotationally connected with a projector is arranged on the upper portion of the supporting arm located on one side. And a damping rotating shaft assembly which is rotationally connected with the projector and has a corner limiting function is arranged at the upper part of the supporting arm on the other side. The rotating structure of the laser projector support is beneficial for realizing rotation and turnover positioning of the projector, and is convenient for adjusting the projection angle.

Description

Technical Field

[0001] The utility model relates to a rotating structure of a laser projector bracket. Background Art

[0002] A projector is a device that can project images or videos onto a screen, and is widely used in homes, offices, schools, and entertainment venues. Existing portable projectors are usually supported by brackets and placed on tabletops such as desks. The projector and the bracket can be rotated to adjust the up and down projection angles of the lens. For example, a projector with a highly stable bracket structure disclosed in patent CN202321819752.1, or a projector disclosed in patent CN202320349889.9. However, the bracket itself cannot be rotated left and right. When it is necessary to adjust the left and right directions, the bracket needs to be manually moved. In addition, a rotation limit structure is not provided for the rotational connection between the bracket and the projector. When adjusting the up and down angles, the projector is prone to flipping from the front side to the back side. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a rotating structure of a laser projector bracket, which helps to realize the rotation and flipping positioning of the projector and is convenient for adjusting the projection angle.

[0004] The technical solution of the utility model lies in: a rotating structure of a laser projector bracket, including a support bottom plate, a rotating seat plate is rotatably connected to the support bottom plate, support arms are respectively fixed to both sides of the rotating seat plate, a hollow rotating shaft assembly rotatably connected to the projector is arranged on the upper part of the support arm on one side, and a damping rotating shaft assembly rotatably connected to the projector and having an angle limit function is arranged on the upper part of the support arm on the other side.

[0005] Further, the hollow rotating shaft assembly includes a hollow shaft installed on the side of the projector, the hollow shaft horizontally passes through a first shaft hole on the upper part of the support arm on one side, a limit ring connected and positioned with the projector is sleeved on the hollow shaft between the projector and the support arm on one side, a positioning ring and a snap ring are sequentially installed at the end of the hollow shaft passing through the first shaft hole, and the positioning ring is connected and positioned with the support arm on one side.

[0006] Further, a counterbore is horizontally arranged on one side of the projector, one end of the hollow shaft has a limit flange and a stop structure matched with the counterbore; a positioning convex button matched with a recess on the side wall of the projector is arranged on one end face of the limit ring.

[0007] Further, positioning slot holes are arranged on both the upper and lower sides of the first shaft hole on the support arm, and convex blocks matched with the positioning slot holes are arranged on both the upper and lower parts of the positioning ring.

[0008] Further, the damping rotating shaft assembly includes a fixing component installed on the side wall of the projector. A pin shaft is installed on the fixing component. On the upper part of the support arm on the other side, a second shaft hole is provided and an annular block that is sleeved on the pin shaft and rotates with the pin shaft is installed. On the outer side of the upper part of the support arm on the other side, a fixing plate is installed. On the outer side of the fixing plate, a limiting plate that rotates with the pin shaft is sleeved. On the outer side of the limiting plate, a butterfly-shaped gasket is provided and a connecting bolt that is screwed with the pin shaft is penetrated. A rotation angle limiting structure is provided between the limiting plate and the fixing plate.

[0009] Further, the fixing component consists of a fixing block installed on the side wall of the projector and a limiting block located between the projector and the support arm. A fixing bolt that is screwed with the fixing block is horizontally penetrated through the limiting block.

[0010] Further, the cross-sectional shape of the rod part of the pin shaft is a waist-shaped structure. Waist-shaped holes that match the rod part of the pin shaft are provided on both the annular block and the limiting plate. A round hole for the rod part of the pin shaft to pass through is provided on the fixing plate.

[0011] Further, the rotation angle limiting structure includes an arc-shaped groove provided on the fixing plate, and a limiting convex block that extends into the arc-shaped groove is provided on the limiting plate.

[0012] Further, transverse screws that are screwed with the support arm are penetrated through the periphery of the fixing plate.

[0013] Further, avoidance holes are provided at positions corresponding to the fixing bolts on the annular block, the fixing plate, and the limiting plate.

[0014] Compared with the prior art, the present utility model has the following advantages:

[0015] 1. The laser projector bracket is rotationally connected through the support bottom plate and the rotating seat plate, realizing the rotation of the bracket, and there is no need to move the bracket when adjusting the projection direction left and right.

[0016] 2. The laser projector bracket helps to realize the flipping and positioning of the projector through the damping rotating shaft assembly, avoiding the situation that the projector flips too much, and helps to maintain the position after adjusting to the required angle. In addition, through the rotational connection between the support bottom plate and the rotating seat plate and the rotational connection between the projector and the support arm, multi-angle adjustment can be realized, and the adjustment is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the present utility model;

[0018] Figure 2 is a matching schematic diagram of the support bottom plate and the rotating seat plate of the present utility model;

[0019] Figure 3Cross-sectional view of the hollow rotating shaft assembly of the present utility model in cooperation with the support arm and the projector;

[0020] Figure 4 Exploded view of the hollow rotating shaft assembly of the present utility model;

[0021] Figure 5 Cross-sectional view of the damping rotating shaft assembly of the present utility model in cooperation with the support arm and the projector;

[0022] Figure 6 Exploded view of the damping rotating shaft assembly of the present utility model;

[0023] In the figure: 10 - support bottom plate, 12 - anti-slip cushion block, 20 - rotating seat plate, 30 - support arm, 31 - first shaft hole, 32 - positioning slot hole, 33 - second shaft hole, 40 - projector, 41 - counterbore, 42 - recess, 50 - hollow rotating shaft assembly, 51 - hollow shaft, 511 - limiting flange, 52 - limiting ring, 521 - waist-shaped hole, 522 - positioning convex button, 53 - positioning ring, 531 - convex block, 54 - snap ring, 60 - damping rotating shaft assembly, 61 - fixing block, 62 - limiting block, 621 - fixing bolt, 622 - waist-shaped hole, 63 - pin shaft, 64 - annular block, 641 - waist-shaped hole, 65 - fixing plate, 651 - round hole, 652 - arc-shaped groove, 653 - transverse screw, 66 - limiting plate, 661 - waist-shaped hole, 662 - limiting convex block, 67 - butterfly gasket, 68 - connecting bolt, 69 - avoidance hole. Detailed implementation manner

[0024] To make the above features and advantages of the present utility model more understandable, specific embodiments are hereinafter given and described in detail in conjunction with the accompanying drawings, but the present utility model is not limited thereto.

[0025] Reference Figures 1 to 6

[0026] A rotating structure of a laser projector bracket includes a support bottom plate 10, on which a rotating seat plate 20 is rotatably connected through a vertical rotating shaft 11, and anti-slip cushion blocks 12 are spacedly arranged on the circumferential part of the bottom surface of the support bottom plate. Support arms 30 are respectively fixed on both sides of the rotating seat plate. A hollow rotating shaft assembly 50 for rotatably connecting with the projector 40 is arranged on the upper part of one of the support arms, so as to install wires of the projector through the hollow shaft; a damping rotating shaft assembly 60 for rotatably connecting with the projector and having an angular position limiting function is arranged on the upper part of the other support arm, so that the projector can be rotated to the required angle and maintain the position, and at the same time, the rotation angle of the projector is limited through the angular position limiting function.

[0027] In this embodiment, the hollow rotating shaft assembly includes a hollow shaft 51 installed on the side of the projector. The hollow shaft horizontally passes through a first shaft hole 31 in the upper part of the support arm on one side. A limiting ring 52 is sleeved on the hollow shaft between the projector and the support arm on one side. The limiting ring is connected and positioned with the projector. At the end of the hollow shaft passing through the first shaft hole, a positioning ring 53 and a snap ring 54 are sequentially installed. The positioning ring is connected and positioned with the support arm on one side. The projector rotates around the first shaft hole of the support arm with the hollow shaft and the limiting ring.

[0028] In this embodiment, a counterbore 41 is horizontally arranged on one side of the housing of the projector. One end of the hollow shaft has a limiting flange 511 and a stop structure that cooperate with the counterbore. The stop structure is an external hexagonal structure arranged at one end of the hollow shaft, and an internal hexagonal structure that cooperates with the external hexagonal structure is arranged in the counterbore.

[0029] In this embodiment, the radial cross-section of the hollow shaft is in a waist-shaped structure. A waist-shaped hole 521 that cooperates with the hollow shaft is arranged on the limiting ring. A positioning convex button 522 that cooperates with a concave part 42 on the side wall of the housing of the projector is arranged on one end face of the limiting ring, so as to realize the positioning of the limiting ring and make the limiting ring rotate together with the projector.

[0030] In this embodiment, positioning slot holes 32 are arranged on both the upper and lower sides of the first shaft hole on the support arm. Convex blocks 531 that cooperate with the positioning slot holes are arranged on both the upper and lower parts of the positioning ring, so as to prevent the positioning ring from rotating.

[0031] In this embodiment, a card slot that cooperates with the snap ring is arranged at the other end of the hollow shaft.

[0032] In this embodiment, in order to realize the rotational connection between the projector and the support arm on the other side, the damping rotating shaft assembly includes a fixing component installed on the side wall of the projector. A pin shaft 63 is installed on the fixing component. A second shaft hole 33 is arranged in the upper part of the support arm on the other side, and an annular block 64 that rotates with the pin shaft is sleeved on the pin shaft. A fixing plate 65 is installed on the outer side of the upper part of the support arm on the other side. A limiting plate 66 that rotates with the pin shaft is sleeved on the outer side of the fixing plate. A butterfly washer 67 is arranged on the outer side of the limiting plate, and a connecting bolt 68 that is screwed into an axial threaded hole on the pin shaft is arranged therethrough, so that the rotation between the projector and the support arm has rotational damping, which is convenient for the projector to rotate to the required angle and stay, and the rotational damping of the projector is adjusted by adjusting the pre-tightening force of the connection bolt screwed into the pin shaft.

[0033] In this embodiment, in order to install the pin shaft, the fixing component consists of a fixing block 61 installed on the side wall of the projector and a limiting block 62 between the projector and the support arm. Three fixing bolts 621 that are screwed into the fixing block are horizontally arranged through the limiting block.

[0034] In this embodiment, the limiting block is located between the fixed block and the annular block and is in close contact with them.

[0035] In this embodiment, the radial cross-sections of the end and the rod of the pin shaft are both in a waist-shaped structure. Waist-shaped holes 622, 641, and 661 that match the rod of the pin shaft are provided on the limiting block, the annular block, and the limiting plate respectively. A round hole 651 for the rod of the pin shaft to pass through is provided on the fixing plate. Thus, when the projector rotates, the limiting block, the annular block, and the limiting plate are driven to move and rotate by the pin shaft.

[0036] In this embodiment, a rotation angle limiting structure is provided between the limiting plate and the fixing plate. Specifically, the rotation angle limiting structure includes an arc-shaped groove 652 provided on the fixing plate, and a limiting convex block 662 extending into the arc-shaped groove is provided on the limiting plate. Thus, the rotation angle of the projector is limited by the cooperation of the arc-shaped groove and the limiting block, and the rotation angle of the projector is limited within 180°.

[0037] In this embodiment, a transverse screw 653 for screwing with the support arm is passed through the circumference of the fixing plate to lock the fixing plate and the support arm.

[0038] In this embodiment, avoidance holes 69 corresponding to the fixing bolts are provided at the positions on the annular block, the fixing plate, and the limiting plate. When installing the fixing component, it is used for the fixing bolts to pass through.

[0039] For any of the technical solutions disclosed by the present utility model as described above, unless otherwise stated, if it discloses a numerical range, the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is only the numerical values with obvious technical effects or representativeness among many implementable numerical values. Since there are too many numerical values to list them all, the present utility model only discloses some numerical values to illustrate the technical solutions of the present utility model. Moreover, the above-listed numerical values should not constitute a limitation on the protection scope of the present invention.

[0040] If words such as "first" and "second" are used to limit components in this article, those skilled in the art should know that the use of "first" and "second" is only for the convenience of differentiating components in the description. Unless otherwise stated, the above words have no special meaning.

[0041] If the present utility model discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, using bolts or screws for connection), or it can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integral structure (for example, manufactured by integral forming using a casting process) (except where it is obviously impossible to use the integral forming process).

[0042] In addition, for any technical solution disclosed in the present utility model above, the terms used to represent positional relationships or shapes, unless otherwise stated, include states or shapes that are approximate, similar, or close thereto.

[0043] Any component provided by the present utility model can either be assembled from a plurality of individual components or be a single component manufactured by an integral forming process.

[0044] The above are only the preferred embodiments of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model shall fall within the scope covered by the present utility model.

Claims

1. A rotating structure for a laser projector bracket, including a supporting bottom plate, characterized in that, A rotating seat plate is rotatably connected to the supporting bottom plate. Support arms are respectively fixed to both sides of the rotating seat plate. A hollow rotating shaft assembly rotatably connected to the projector is arranged at the upper part of the support arm on one side, and a damping rotating shaft assembly rotatably connected to the projector and having an angle limit function is arranged at the upper part of the support arm on the other side.

2. The rotating structure of the laser projector bracket according to claim 1, wherein The hollow rotating shaft assembly includes a hollow shaft installed on the side of the projector. The hollow shaft horizontally passes through a first shaft hole at the upper part of the support arm on one side. A limiting ring connected and positioned with the projector is sleeved on the hollow shaft between the projector and the support arm on one side. A positioning ring and a snap ring are successively installed at the end of the hollow shaft passing through the first shaft hole, and the positioning ring is connected and positioned with the support arm on one side.

3. The rotation structure of the laser projector bracket according to claim 2, wherein, A counterbore is horizontally arranged on one side of the projector. One end of the hollow shaft has a limiting flange and a stop structure matched with the counterbore; a positioning convex button matched with a concave part on the side wall of the projector is arranged on one end face of the limiting ring.

4. The laser projector bracket rotation structure according to claim 2 or 3, characterized in that, Positioning slot holes are arranged on both the upper and lower sides of the first shaft hole on the support arm. Protrusions matched with the positioning slot holes are arranged on both the upper and lower parts of the positioning ring.

5. The rotation structure of the laser projector bracket according to claim 1, wherein, The damping rotating shaft assembly includes a fixing component installed on the side wall of the projector. A pin shaft is installed on the fixing component. A second shaft hole is arranged at the upper part of the support arm on the other side, and an annular block sleeved on the pin shaft and rotating with the pin shaft is installed. A fixing plate is installed on the outer side of the upper part of the support arm on the other side. A limiting plate sleeved on and rotating with the pin shaft is arranged on the outer side of the fixing plate. A butterfly-shaped gasket is arranged on the outer side of the limiting plate, and a connecting bolt screwed with the pin shaft is penetrated. A rotation angle limit structure is arranged between the limiting plate and the fixing plate.

6. The laser projector bracket rotation structure according to claim 5, characterized in that, The fixing component consists of a fixing block installed on the side wall of the projector and a limiting block between the projector and the support arm. A fixing bolt screwed with the fixing block is horizontally penetrated through the limiting block.

7. The laser projector bracket rotation structure according to claim 5 or 6, characterized in that, The cross-sectional shape of the rod part of the pin shaft is a waist-shaped structure. Waist-shaped holes matched with the rod part of the pin shaft are arranged on both the annular block and the limiting plate. A round hole for the rod part of the pin shaft to pass through is arranged on the fixing plate.

8. The rotation structure of the laser projector bracket according to claim 5, wherein, The rotation angle limit structure includes an arc-shaped groove arranged on the fixing plate, and a limiting protrusion extending into the arc-shaped groove is arranged on the limiting plate.

9. The laser projector bracket rotation structure according to claim 5 or 8, characterized in that, Horizontal screws screwed with the support arm are penetrated through the periphery of the fixing plate.

10. The laser projector bracket rotation structure according to claim 6, wherein Avoidance holes corresponding to the fixing bolts are arranged at the positions of the annular block, the fixing plate, and the limiting plate.

Images