Projector support assembly

Abstract

The utility model discloses a projector support assembly, the support assembly is installed in a hidden frame, the upper end of the hidden frame is provided with an opening, the hidden frame is rotatably provided with a top cover, and the top cover is used for turning over to open and close the opening; the support assembly comprises a lifting mechanism, the lifting mechanism comprises a cylinder used for folding a shear fork frame and unfolding and retracting the shear fork frame, and the shear fork lifting mechanism can bear large loads, can bear various types of ultra-short focus projectors and is high in adaptability. The lifting height can be adjusted according to actual requirements, the flexibility is high, and projection environments with different heights can be adapted. By adopting an electric driving mode, the lifting speed is high, and the starting efficiency of the projector can be remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of projector lifting brackets, and particularly relates to a projector bracket assembly. Background Art

[0002] When a projector is exposed to the air for a long time, there will be a lot of dust. These dusts will enter the inside of the projector, cover the heat dissipation elements of the projector, affect the heat dissipation effect, and at the same time pollute the lens. In addition, the existing projectors are exposed to the air for a long time, there are certain safety hazards. When moving objects, it will be affected by the projector, and it will be accidentally bumped, causing damage to the equipment. Content of the Utility Model

[0003] The purpose of the utility model is to solve the above problems and provide a projector bracket assembly.

[0004] The technical solution of the utility model is realized as follows:

[0005] The utility model provides a projector bracket assembly. The bracket assembly is installed in a hidden frame. The upper end of the hidden frame has an opening, and a top cover is rotatably installed on the hidden frame. The top cover is used to flip and open / close the opening.

[0006] The bracket assembly includes:

[0007] A lifting mechanism, including: a folding scissor lift and a cylinder for expanding and contracting the folding scissor lift;

[0008] A placement tray, installed on the top of the scissor lift. The placement tray can be extended out of the opening through the lifting mechanism.

[0009] An opening cover mechanism, including a push-pull rod and a driving component for moving the push-pull rod. One end of the push-pull rod is hinged to the top cover, and the other end is connected to the driving component. The driving component pushes the top cover to open or pulls the top cover to close by moving the push-pull rod up and down.

[0010] The advantages or beneficial effects in the above technical solutions at least include:

[0011] The folding scissor lift provides good stability when lifting and lowering the placement tray, ensuring smoothness during the lifting and lowering process, reducing the risk of shaking and tilting. It guarantees the stability of the projector screen quality. And the scissor lift mechanism can bear a large load, can carry a variety of ultra-short throw projector models, and has strong adaptability. Its lifting height can be adjusted according to actual needs, with high flexibility, and can adapt to projection environments of different heights. Using an electric drive method, the lifting speed is fast, which can significantly improve the startup efficiency of the projector. Description of the Drawings

[0012] The accompanying drawings illustrate exemplary embodiments of the present utility model and, together with the description thereof, are used to explain the principles of the present utility model. These drawings are included to provide a further understanding of the present utility model and are included in this specification and form a part of this specification.

[0013] Figure 1 Shows a schematic diagram of the placement tray of an embodiment of the present utility model being retracted into the hidden frame;

[0014] Figure 2 Shows a schematic diagram of the placement tray of an embodiment of the present utility model extending out of the hidden frame;

[0015] Figure 3 Shows a schematic diagram of the process of the placement tray of an embodiment of the present utility model extending out of the folding frame;

[0016] Figure 4 Shows a schematic diagram of the position of the sensor of an embodiment of the present utility model;

[0017] Figure 5 Shows a schematic diagram of the structure of the lifting mechanism of an embodiment of the present utility model;

[0018] Figure 6 Shows a schematic diagram of the structure of the drive assembly of an embodiment of the present utility model;

[0019] Reference numerals: 10, bracket assembly; 11, lifting mechanism; 111, folding scissor frame; 112, cylinder; 113, air pump; 12, placement tray; 13, opening mechanism; 131, push-pull rod; 132, drive assembly; 1321, cross bar; 1322, pulley; 1323, belt; 1324, motor; 1325, support frame; 133, extension rod; 14, sensor; 15, column; 20, hidden frame; 21, top cover. Detailed implementation manners

[0020] Embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present utility model. It should be understood that the drawings and embodiments of the present utility model are only for exemplary purposes and are not used to limit the protection scope of the present utility model.

[0021] It should be noted that, without conflict, the implementation manners and features in the implementation manners of the present utility model can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the implementation manners.

[0022] It should be understood that the term "including" and its variants used herein are open-ended, that is, "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts such as "first" and "second" mentioned in the present utility model are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0023] It should be noted that the modifications of "one" and "multiple" mentioned in the present utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise clearly specified in the context, it should be understood as "one or more".

[0024] The names of the messages or information exchanged between multiple devices in the embodiments of the present utility model are only for illustrative purposes and are not used to limit the scope of these messages or information.

[0025] Referring to Figure 1 and Figure 2 , a projector support assembly 10, the support assembly 10 is installed in a hidden frame 20, the upper end of the hidden frame 20 has an opening, and a top cover 21 is rotatably installed on the hidden frame 20, and the top cover 21 is used to flip open and close the opening;

[0026] Among them, the support assembly 10 includes:

[0027] A lifting mechanism 11, the lifting mechanism 11 includes: a folding scissor lift 111 and a cylinder 112 for expanding and contracting the folding scissor lift 111,

[0028] A placement tray 12, installed at the top of the scissor lift. The placement tray 12 can extend out of the opening through the lifting mechanism 11. By the cylinder 112, the folding scissor lift 111 is extended and contracted, so that the placement tray 12 extends out of the opening or retracts into the hidden frame 20. A projector can be placed on the placement tray 12. When the folding scissor lift 111 is in a contracted state, the projector is moved into the hidden frame 20 for hiding. After the folding scissor lift 111 is extended, the projector is extended out of the hidden frame 20 for use;

[0029] An opening cover mechanism 13, including a push-pull rod 131 and a drive assembly 132 for moving the push-pull rod 131. One end of the push-pull rod 131 is hinged to the top cover 21, and the other end is connected to the drive assembly 132. The drive assembly 132 moves the push-pull rod 131 up and down to push the top cover 21 to open or pull the top cover 21 to close, as Figure 3As shown in the figure, the driving component 132 includes: a cross bar 1321, the end of the cross bar 1321 is hinged to the push rod 131; a pulley 1322, on which a belt 1323 is sleeved, and the cross bar 1321 is fixedly installed outside the belt 1323; a motor 1324, used to drive the pulley 1322 to rotate. By driving the rotation of the pulley 1322 by the motor 1324, the cross bar 1321 will move up and down; when moving upward, the cross bar 1321 pushes the push rod 131 upward, and the push rod 131 will push up the flip cover and turn it out. At this time, the opening is opened, and the placing tray 12 can be moved upward by extending and folding the scissor lift 111. After the placing tray 12 extends into the hidden frame 20, the flip cover can be pulled downward by moving the cross bar 1321 downward, and the flipped-up flip cover can be re-closed;

[0030] Further, the bracket assembly 10 further includes:

[0031] A sensor 14, used to sense whether there is a cross bar 1321 in front of the sensor 14;

[0032] A column 15, installed in the hidden frame 20, the sensor 14 is installed on the column 15, and the column 15 is located on the side of the cross bar 1321 away from the belt 1323;

[0033] And the air pump 113 of the air cylinder 112 is installed in the hidden frame 20, and the sensor 14 is electrically connected to the air pump 113.

[0034] When the first sensor 14 detects that the cross bar 1321 appears in front, that is, when the cross bar 1321 pushes the push rod 131 to turn up the flip cover, the first sensor 14 sends a signal to the air pump 113 of the air cylinder 112, and the air pump 113 of the air cylinder 112 makes an extension action according to the signal, and will move the placing tray 12 upward through the extended and folded scissor lift 111 and move it out of the hidden frame 20, as Figure 4 shown, the position of the sensor 14 is installed at the position where the cross bar 1321 is located when the flip cover is turned up.

[0035] As a further improvement of the above structure, the driving component 132 further includes a support frame 1325, one end of which is installed at the bottom of the folding scissor lift 111, and the pulley 1322 is rotatably installed on the support frame 1325 to support the rotation of the pulley 1322 to keep the two pulleys 1322 in the same vertical position.

[0036] Further improvement based on the above structure: The top cover 21 is arranged in a mirror image on the two inner sides of the opening; the ends of the push-pull rods 131 away from the top cover 21 are hinged to each other, and an extension rod 133 is hinged. When the flip cover needs to be turned up, the extension rod 133 hits the bottom of the folding scissor lift 111 during the upward movement of the effective crossbar 1321, and the end of the extension rod 133 away from the push-pull rod 131 is fixed to the crossbar 1321.

[0037] In summary, when the user needs to extend the projector from the hidden frame 20, the motor 1324 is controlled to start by means of a remote control signal or the like. The pulley 1322 is rotated by the motor 1324, so that the belt 1323 rotates, driving the crossbar 1321 to move upward. When the crossbar 1321 moves upward, the crossbar 1321 drives the extension rod 133 to push the push-pull rod 131 upward. At this time, the push-pull rod 131 will turn up the flip cover. At the same time, the crossbar 1321 reaches the position of the sensor 14, and the sensor 14 sends a signal to the cylinder 112. The cylinder 112 makes an extension action according to the signal, and the placement tray 12 is moved upward by extending the folding scissor lift 111 until it is removed from the hidden frame 20. At this time, the projector extends out of the hidden frame 20, and the hidden frame 20 can be used. At this time, the sensor 14 enters the standby state.

[0038] When the user needs to retract the projector back into the hidden frame 20, first control the cylinder 112 to contract, contract the folding scissor lift 111, and after completely retracting the projector into the hidden frame 20, start the motor 1324 again. By moving the crossbar 1321 downward, the push-pull rod 131 pulls the flip cover, and the flip cover closes. At this time, the sensor 14 enters the on state; among them, the sensor 14 is an infrared sensor.

[0039] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0040] Those skilled in the art should understand that the above embodiments are only for clearly explaining the present invention, rather than limiting the scope of the present invention. For those skilled in the art, other changes or modifications can be made on the basis of the above disclosure, and these changes or modifications are still within the scope of the present invention.

Claims

1. A projector bracket assembly, characterized in that: The support assembly (10) is installed in a hidden frame (20), the upper end of the hidden frame (20) has an opening, and a top cover (21) is rotatably installed on the hidden frame (20), and the top cover (21) is used to flip open and close the opening; The support assembly (10) comprises: The lifting mechanism (11) comprises: a cylinder (112) for folding the scissor frame (111) and for unfolding and retracting the folding scissor frame (111), A placement plate (12) is installed on the top of the scissor frame, and the placement plate (12) can extend out of the opening through the lifting mechanism (11); The cover opening mechanism (13) comprises a push-pull rod (131) and a driving assembly (132) for moving the push-pull rod (131); one end of the push-pull rod (131) is hinged to the top cover (21), and the other end is connected to the driving assembly (132); the driving assembly (132) pushes the top cover (21) to open or pulls the top cover (21) to close by moving the push-pull rod (131) up and down.

2. The projector bracket assembly according to claim 1, characterized in that: The drive assembly (132) comprises: A cross bar (1321), the end of which is hinged to the push-pull rod (131); A pulley (1322) on which a belt (1323) is sleeved, and the cross bar (1321) is fixedly mounted on the outside of the belt (1323); The motor (1324) is used to drive the pulley (1322) to rotate.

3. The projector bracket assembly according to claim 2, characterized in that: The support assembly (10) further comprises: A sensor (14) for sensing whether a crossbar (1321) appears in front of the sensor (14); A column (15) is installed in the hidden frame (20), the sensor (14) is installed on the column (15), and the column (15) is located on a side of the cross bar (1321) away from the belt (1323); When the sensor (14) detects that the crossbar (1321) appears in front, the sensor (14) sends a signal to the cylinder (112), and the cylinder (112) performs an extension action according to the signal.

4. The projector bracket assembly according to claim 3, characterized in that: The driving assembly (132) further comprises a support frame (1325), one end of which is mounted on the bottom of the folding scissors frame (111), and the pulley (1322) is rotatably mounted on the support frame (1325).

5. The projector bracket assembly according to claim 3 or 4, characterized in that: The top cover (21) is arranged on two inner sides of the opening in a mirror-like manner; The ends of the push-pull rod (131) away from the top cover (21) are hinged to each other and are hinged to an extension rod (133). The end of the extension rod (133) away from the push-pull rod (131) is fixed to the cross bar (1321).

6. The projector bracket assembly according to claim 3, characterized in that: The air pump (113) of the air cylinder (112) is installed in the hidden frame (20), and the sensor (14) is connected to the air pump (113) via an electrical signal.

7. The projector bracket assembly according to claim 3, characterized in that: The sensor (14) is an infrared sensor.

8. The projector bracket assembly according to claim 1, characterized in that: The placement plate (12) is used for placing a projector.

Images