Ceiling-mounted projector

Abstract

The application discloses a ceiling-mounted projector and relates to the technical field of projectors. The application comprises a mounting box which is embeddedly mounted in the inside of a ceiling, the bottom of the mounting box is provided with a cover plate flush with the surface of the ceiling, and a plurality of air outlet holes are arranged on the mounting box along the circumference thereof; a circular projector is movably arranged in the mounting box; a heat dissipation assembly is arranged on the mounting box and communicates with the air outlet holes; and a lifting assembly comprises a movable plate, the bottom of the movable plate is fixedly connected with two spring telescopic rods, the bottom of the spring telescopic rods penetrates through the mounting box and is slidably inserted into the upper end of the circular projector, and a screw rod is connected with the movable plate through a one-way rotating telescopic piece. The application adopts a hidden embedded structure, saves space and improves the aesthetic appearance, and the lifting assembly can realize various movements such as lifting storage and angle change by using a single driving piece, without manpower, and the convenience is improved.

Description

Technical Field

[0001] This application relates to the field of projector technology, specifically to ceiling-mounted projectors. Background Technology

[0002] A projector, also known as a projector, is a device that can project 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.

[0003] There are various types of existing projectors, among which projectors installed on the ceiling are called ceiling-mounted projectors. Most existing ceiling-mounted projectors are fixed to the ceiling, making it difficult to adjust their orientation and angle. The screen needs to be installed according to the pre-installed position of the projector. If the position of the screen is adjusted, people can only reach the projector with a ladder to manually adjust its angle, which is quite cumbersome. In addition, existing projectors protrude and are exposed on the outside of the ceiling, which affects the aesthetics. Therefore, this invention proposes a ceiling-mounted projector. Summary of the Invention

[0004] The purpose of this application is to provide a ceiling-mounted projector in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application specifically adopts the following technical solution:

[0006] Ceiling-mounted projectors include:

[0007] The mounting box is embedded inside the ceiling. The bottom of the mounting box is provided with a cover plate that is flush with the ceiling surface. Multiple air vents are arranged in a circular array on the mounting box.

[0008] A circular projector, movably mounted inside the mounting box;

[0009] The heat dissipation component is mounted on the mounting box and connected to the air vent.

[0010] The lifting assembly includes a movable plate. Two spring telescopic rods are fixedly connected to the bottom of the movable plate. The bottom of the spring telescopic rods passes through the mounting box and is slidably inserted into the upper end of the circular projector. A screw is connected to the movable plate through a one-way rotating telescopic component. The bottom of the screw is connected to the circular projector through a second one-way rotating telescopic component. A threaded sleeve is rotatably installed on the top of the mounting box and is threaded onto the screw. A spring telescopic block for abutting the movable plate is fixedly connected to the top of the mounting box.

[0011] Furthermore, the cover plate includes a rotating shaft rotatably mounted on the mounting box, a circular plate for closing the mounting box is fixedly connected to the rotating shaft, and the open end of the mounting box is constructed with a stepped groove for abutting against the circular plate.

[0012] Further, the heat dissipation assembly comprises a ring pipe fixedly connected to the circumference side of the mounting box, and a suction fan is fixedly connected to the side of the ring pipe.

[0013] Further, the spring telescopic rod comprises a guide rod fixedly connected to the bottom of the movable plate, a column sleeve is slidingly sleeved at the bottom of the guide rod, and a return spring is connected between the inner bottom of the column sleeve and the end of the guide rod.

[0014] Further, the one-way rotation telescopic part one comprises a column block one fixedly connected to the upper end of the screw rod, a plurality of arc-shaped elastic sheets one are arrayed on the circumference side of the column block one, a ring frame one is installed through the movable plate, a plurality of limiting inclined blocks one are arrayed on the inner wall of the ring frame one along the circumference thereof and are in dislocation with the arc-shaped elastic sheets one, a baffle is fixedly connected to the upper end and the lower end of the column block one, and a compression spring sleeved on the column block one is arranged between the baffle on the upper side and the top of the ring frame one.

[0015] Further, the one-way rotation telescopic part two comprises a column block two fixedly connected to the bottom of the screw rod, a plurality of arc-shaped elastic sheets two are arrayed on the circumference side of the column block two, a recess is arranged on the circular projector, a ring frame two is fixedly connected in the recess and wraps around the outer circumference side of the column block two, a plurality of limiting inclined blocks two are arrayed on the inner side of the ring frame two along the circumference thereof, a ring plate is fixedly connected to the opening end of the recess, and a contact spring sleeved on the screw rod is arranged between the bottom of the ring plate and the column block two.

[0016] Further, the screw sleeve is made of rubber and has a frictional force greater than the required force of deformation of the arc-shaped elastic sheet one and the arc-shaped elastic sheet two.

[0017] Further, the spring telescopic block comprises a support block fixedly connected to the top of the mounting box, a support sleeve is slidingly sleeved on the support block, and a support spring is connected between the support sleeve and the support block.

[0018] Further, the drive part comprises a driving motor fixedly connected to the mounting box, a gear ring is fixedly sleeved on the screw sleeve, the output shaft of one of the driving motors is fixedly connected to the rotating shaft, and a driving gear meshing with the gear ring is fixedly connected to the output shaft of the other driving motor.

[0019] The beneficial effects of the present application are as follows:

[0020] 1. The mounting box is arranged inside the ceiling, the circular projector can be collected into the mounting box by the lifting assembly, the mounting box is completely closed by the cover plate, a hidden structure is formed, the circular projector is not exposed to the outside, and the appearance is improved.

[0021] 2、The application utilizes the rotation telescopic part one and the one-way rotation telescopic part two in the lifting assembly to threadedly cooperate with the screw rod when the screw sleeve rotates, thereby driving the projector to move out of the mounting box, and after moving out, utilizing the reverse rotation of the screw sleeve to realize the disengagement of the screw rod from the limiting, thereby driving the circular projector to synchronously rotate, so as to automatically adjust the orientation angle of the circular projector, mechanically control, and do not need to manually use a ladder to assist in touching the projector, thereby increasing the safety and convenience. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a perspective view of the application;

[0023] Figure 2 is a perspective view of the application;

[0024] Figure 3 is another partial perspective view of the application;

[0025] Figure 4 is another partial perspective view of the application;

[0026] Figure 5 is a perspective view of the application Figure 4 is a perspective view of the application

[0027] Figure 6 is a partial perspective view of the application;

[0028] The drawings show that: 1, mounting box; 101, air outlet; 2, cover plate; 201, rotating shaft; 202, round plate; 203, stepped groove; 3, circular projector; 4, heat dissipation assembly; 401, ring pipe; 402, air suction fan; 5, lifting assembly; 501, movable plate; 502, spring telescopic rod; 5021, guide rod; 5022, column sleeve; 5023, return spring; 503, one-way rotation telescopic part one; 5031, column block one; 5032, arc spring one; 5033, ring frame one; 5034, limiting inclined block one; 5035, baffle; 5036, compression spring; 504, screw rod; 505, one-way rotation telescopic part two; 5051, column block two; 5052, arc spring two; 5053, groove; 5054, ring frame two; 5055, limiting inclined block two; 5056, ring plate; 5057, abutting spring; 506, screw sleeve; 507, spring telescopic block; 5071, support block; 5072, support sleeve; 5073, support spring; 6, driving part; 601, driving motor; 602, gear ring; 603, driving gear. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the application more clear, the technical scheme in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application.

[0030] As Figures 1-4 shown, the ceiling-mounted projector of one embodiment of the present application comprises:

[0031] The mounting box 1 is embeddedly mounted in the ceiling, the bottom of the mounting box 1 is provided with a cover plate 2 flush with the surface of the ceiling, a plurality of air outlet holes 101 are arranged along the circumference of the mounting box 1, a mounting groove is formed in the top of the house before the installation of the device, the mounting box 1 is completely inserted into the mounting groove, and the cover plate 2 is flush with the roof, when the cover plate 2 is covered on the mounting box 1, it can be integrated with the roof, reducing the sense of strangeness and improving the appearance of the device;

[0032] The circular projector 3 is movably arranged in the mounting box 1, the circular projector 3 can rotate by itself in the mounting box 1 or move up and down;

[0033] The heat dissipation assembly 4 is arranged on the mounting box 1 and communicates with the air outlet hole 101, because the space in the mounting box 1 is small, the circular projector 3 will be limited by the surrounding space when it is started in the mounting box 1 or after it is separated from the mounting box 1, the airflow circulation is not smooth, so the additional heat dissipation assembly 4 is needed to dissipate heat for the circular projector 3 to ensure safety;

[0034] The lifting assembly 5 comprises a movable plate 501, two spring telescopic rods 502 are fixedly connected to the bottom of the movable plate 501, the bottom of the spring telescopic rod 502 penetrates through the mounting box 1 and is slidably inserted into the upper end of the circular projector 3, a screw rod 504 is connected to the movable plate 501 through a one-way rotating telescopic piece one 503, the bottom of the screw rod 504 is connected with the circular projector 3 through a one-way rotating telescopic piece two 505, a screw sleeve 506 is screwedly sleeved on the screw rod 504 and is rotatably installed on the top of the mounting box 1, a spring telescopic block 507 for abutting against the movable plate 501 is fixedly connected to the top of the mounting box 1;

[0035] The device is initially in a state where the circular projector 3 is completely inside the mounting box 1, and because the spring telescopic rod 502 penetrates the mounting box 1 and is inserted on the circular projector 3, the rotation of the movable plate 501 is always limited. The one-way rotation telescopic part one 503 is used to limit the forward rotation of the screw rod 504 but not the reverse rotation of the screw rod 504, and the one-way rotation telescopic part two 505 is used to limit the reverse rotation of the screw rod 504 but not the forward rotation of the screw rod 504. At this time, the driving force can be used to drive the screw sleeve 506 to rotate forward, and the screw rod 504 cannot rotate due to the limitation of the one-way rotation telescopic part one 503, so the screw sleeve 506 will threadedly cooperate with the screw rod 504, thereby driving the screw rod 504, the movable plate 501 and the circular projector 3 to move downward synchronously, so as to complete the moving-out movement of the circular projector 3. When the movable plate 501 abuts against the spring telescopic block 507, because the elastic support force of the spring telescopic block 507 is greater than that of the one-way rotation telescopic part one 503, the one-way rotation telescopic part one 503 will shrink, thereby driving the movable plate 501 to move upward relative to the circular projector 3, that is, the distance between them increases, so that the spring telescopic rod 502 is disconnected from the connection and limitation of the circular projector 3. At this time, the reverse rotation of the screw sleeve 506 can drive the screw rod 504 to rotate reversely. The one-way rotation telescopic part one 503 does not limit the reverse rotation of the screw rod 504, and the one-way rotation telescopic part two 505 limits the reverse rotation of the screw rod 504. Therefore, the circular projector 3 will be rotated, thereby realizing the adjustment of the angle of the circular projector 3 towards, without manual adjustment, saving manpower and improving the flexibility and convenience of the device.

[0036] As shown in Figure 3 some embodiments, the cover plate 2 includes a rotating shaft 201 rotatably mounted on the mounting box 1, and the rotating shaft 201 is fixedly connected with a circular plate 202 for closing the mounting box 1. The opening end of the mounting box 1 is constructed with a stepped groove 203 for abutting against the circular plate 202. By arranging the stepped groove 203, the rotation angle of the circular plate 202 can be limited, so that when the circular plate 202 abuts against the stepped groove 203, it can be completely wrapped on the opening of the mounting box 1, realizing the closing effect, increasing the hiding feature and improving the aesthetics of the device.

[0037] As shown in Figure 3 some embodiments, the heat dissipation assembly 4 includes a ring pipe 401 fixedly connected to the circumference side of the mounting box 1, and the side surface of the ring pipe 401 is fixedly connected with an air suction fan 402. The ring pipe 401 can be used to connect a plurality of air outlets 101 together, and then the air suction fan 402 can be used to continuously remove the heat inside the device together with the gas and discharge it to the outside, thereby realizing the function of quickly dissipating the heat of the circular projector 3, avoiding damage to the device due to heat accumulation, and increasing the safety.

[0038] As shown in Figure 5As shown, in some embodiments, the spring telescopic rod 502 includes a guide rod 5021 fixedly connected to the bottom of the movable plate 501. A column sleeve 5022 is slidably sleeved on the bottom of the guide rod 5021. A return spring 5023 is connected between the bottom of the column sleeve 5022 and the end of the guide rod 5021. When the circular projector 3 needs to be retracted into the mounting box 1, the forward rotation of the screw 504 can continue to drive the screw 504 to move downward until the spring telescopic block 507 is compressed. At this time, the screw sleeve 506 reverses again. Because the spring telescopic block 507 compresses the movable plate 501, and the end of the screw 504 is subjected to two elastic compressive forces, the frictional force will be greater than the friction between the screw sleeve 506 and the screw 504. The friction causes the threaded sleeve 506 to engage with the screw 504, thereby moving the screw 504 upward a certain distance. Since the circular projector 3 may have been adjusted to a certain angle, the return spring 5023 allows the sleeve 5022 to slide on the upper surface of the circular projector 3 until it is engaged in the original slot. This completes the limiting connection between the spring telescopic rod 502 and the circular projector 3. At this time, the reverse rotation of the screw 504 is limited by the one-way rotating telescopic component 505, thus achieving normal threaded engagement and moving the screw 504 and the circular projector 3 upward. The mechanical mechanism realizes the switching between angle adjustment and automatic retraction, improving the novelty of the device.

[0039] like Figure 6 As shown, in some embodiments, the one-way rotating telescopic member 503 includes a column block 5031 fixedly connected to the upper end of the screw 504. Multiple arc-shaped spring pieces 5032 are arrayed around the circumference of the column block 5031. The arc-shaped spring pieces 5032 are made of plastic. A ring frame 5033 is installed through the movable plate 501. Multiple limiting inclined blocks 5034, which are misaligned and interlocked with the arc-shaped spring pieces 5032, are arrayed around the inner wall of the ring frame 5033. Baffles 5035 are fixedly connected to both the upper and lower ends of the column block 5031. A compression spring 5036 sleeved on the column block 5031 abuts against the top of the ring frame 5033 between the upper baffle 5035 and the top of the ring frame 5033. The height of the column block 5031 is greater than the height of the ring frame 5033. This allows the ring frame 5033 to move up and down relative to the column block 5031. The elastic properties of the arc-shaped spring piece 5032 allow it to deform slightly when it contacts the inclined surface of the limiting inclined block 5034, resulting in misalignment and sliding. During reverse rotation, the concave surface of the arc-shaped spring piece 5032 faces the concave surface of the limiting inclined block 5034, preventing displacement after contact, thus limiting rotation in that direction. The baffle 5035 and compression spring 5036 are mainly used to increase the distance between the movable plate 501 and the circular projector 3 when the circular projector 3 descends to its lowest point, thereby disengaging the spring telescopic rod 502 from the circular projector 3. This allows the screw 504 to rotate in the reverse direction, simultaneously adjusting the angle of the circular projector 3.

[0040] As Figure 6 shown, in some embodiments, the one-way rotating telescopic part two 505 includes a column block two 5051 fixedly connected at the bottom of the screw rod 504, the circumferential side of the column block two 5051 is arrayed with a plurality of arc-shaped elastic sheets two 5052, the circular projector 3 is provided with a groove 5053, the groove 5053 is fixedly connected with a ring frame two 5054 wrapped around the outer circumferential side of the column block two 5051, the inner side of the ring frame two 5054 is arrayed with a plurality of limiting inclined blocks two 5055 along the circumference thereof, the opening end of the groove 5053 is fixedly connected with a ring plate 5056, the bottom of the ring plate 5056 is in abutment with the column block two 5051 through an abutment spring 5057 sleeved on the screw rod 504, the height of the column block two 5051 is less than the height of the ring frame two 5054, facilitating the up-and-down movement of the column block two 5051 relative to the ring frame two 5054, and the arc-shaped elastic sheet two 5052 and the limiting inclined block two 5055 have the same operating principle as the arc-shaped elastic sheet one 5032 and the limiting inclined block one 5034, but the setting directions thereof are opposite, wherein the ring plate 5056 and the abutment spring 5057 are mainly used for, when the circular projector 3 is completely received into the mounting box 1, the screw sleeve 506 continues to rotate reversely, which can drive the abutment spring 5057 to be compressed, so that the spring telescopic rod 502 is separated from the circular projector 3 again, facilitating the adjustment of the screw sleeve 506, the screw rod 504 and the circular projector 3 in the mounting box 1 in terms of the angle orientation, so as to facilitate the omnidirectional heat dissipation and increase the flexibility of the device.

[0041] As Figure 6 shown, in some embodiments, the screw sleeve 506 is made of rubber material and has a frictional force greater than the required force of the deformation of the arc-shaped elastic sheet one 5032 and the arc-shaped elastic sheet two 5052, when the one-way rotating telescopic part one 503 or the one-way rotating telescopic part two 505 does not limit the rotation of the screw rod 504, the screw sleeve 506 can drive the screw rod 504 to rotate synchronously by using the frictional force, so as to realize the operation in the above-mentioned embodiments.

[0042] As Figure 5 shown, in some embodiments, the spring telescopic block 507 includes a support block 5071 fixedly connected at the top of the mounting box 1, a support sleeve 5072 is sleeved on the support block 5071 in a sliding manner, a support spring 5073 is connected between the support sleeve 5072 and the support block 5071, for increasing the frictional limitation on the end portion of the screw rod 504, so that the screw sleeve 506 is out of synchronous rotation with the screw rod 504, realizing the threaded cooperation, so as to realize the lifting operation of the circular projector 3.

[0043] As Figure 2As shown, in some embodiments, the device further comprises driving members 6, the driving members 6 comprising driving motors 601 fixedly connected to the mounting box 1, and a tooth ring 602 fixedly sleeved on the screw sleeve 506, wherein an output shaft of one of the driving motors 601 is fixedly connected to the rotating shaft 201, and an output shaft of the other driving motor 601 is fixedly connected with a driving gear 603 engaged with the tooth ring 602, and the device is driven by the motor without human assistance, thereby saving a lot of manpower and improving the convenience of the device.

[0044] The above description of disclosed embodiments enables one skilled in the art to make or use the application. Numerous modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Therefore, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A ceiling-mounted projector, characterized in that, include: The mounting box (1) is embedded in the ceiling. The bottom of the mounting box (1) is provided with a cover plate (2) that is flush with the ceiling surface. The mounting box (1) has multiple air vents (101) arranged in a circumferential array. A circular projector (3) is movably mounted inside the mounting box (1); The heat dissipation component (4) is mounted on the mounting box (1) and connected to the air outlet (101); The lifting assembly (5) includes a movable plate (501). Two spring telescopic rods (502) are fixedly connected to the bottom of the movable plate (501). The bottom of the spring telescopic rods (502) passes through the mounting box (1) and is slidably inserted into the upper end of the circular projector (3). A screw (504) is connected to the movable plate (501) through a one-way rotating telescopic component (503). The bottom of the screw (504) is connected to the circular projector (3) through a one-way rotating telescopic component (505). A screw sleeve (506) threaded on the screw (504) is rotatably installed on the top of the mounting box (1). A spring telescopic block (507) for abutting the movable plate (501) is fixedly connected to the top of the mounting box (1). The one-way rotating telescopic component (503) includes a column block (5031) fixedly connected to the upper end of the screw (504). The column block (5031) has multiple arc-shaped spring pieces (5032) arranged in an array on its circumference. A ring frame (5033) is installed through the movable plate (501). Multiple limiting inclined blocks (5034) that are misaligned and inserted into the arc-shaped spring pieces (5032) are arranged in an array along the circumference of the inner wall of the ring frame (5033). Baffles (5035) are fixedly connected to both the upper and lower ends of the column block (5031). A compression spring (5036) sleeved on the column block (5031) abuts against the top of the ring frame (5033) located on the upper side of the baffle (5035). The one-way rotating telescopic component 2 (505) includes a column block 2 (5051) fixedly connected to the bottom of the screw (504). The column block 2 (5051) has multiple arc-shaped spring pieces 2 (5052) arranged in an array on its circumference. The circular projector (3) has a groove (5053). The groove (5053) has a ring frame 2 (5054) fixedly connected to the outside of the column block 2 (5051). The ring frame 2 (5054) has multiple limiting inclined blocks 2 (5055) arranged in an array along its circumference on its inner side. The opening end of the groove (5053) is fixedly connected to a ring plate (5056). The bottom of the ring plate (5056) and the column block 2 (5051) are in contact with an abutting spring (5057) sleeved on the screw (504). The threaded sleeve (506) is made of rubber and the friction between it and the screw (504) is greater than the deformation force required by the first arc-shaped spring (5032) and the second arc-shaped spring (5052).

2. The ceiling-mounted projector according to claim 1, characterized in that, The cover plate (2) includes a rotating shaft (201) rotatably mounted on the mounting box (1), and a circular plate (202) for closing the mounting box (1) is fixedly connected to the rotating shaft (201). The opening end of the mounting box (1) is constructed with a stepped groove (203) for abutting the circular plate (202).

3. The ceiling-mounted projector according to claim 1, characterized in that, The heat dissipation assembly (4) includes an annular tube (401) fixedly connected to the circumferential side of the mounting box (1), and an exhaust fan (402) is fixedly connected to the side of the annular tube (401).

4. The ceiling-mounted projector according to claim 1, characterized in that, The spring telescopic rod (502) includes a guide rod (5021) fixedly connected to the bottom of the movable plate (501). A column sleeve (5022) is slidably sleeved on the bottom of the guide rod (5021). A return spring (5023) is connected between the bottom of the column sleeve (5022) and the end of the guide rod (5021).

5. The ceiling-mounted projector according to claim 1, characterized in that, The spring telescopic block (507) includes a support block (5071) fixedly connected to the top of the mounting box (1), a support sleeve (5072) is slidably sleeved on the support block (5071), and a support spring (5073) is connected between the support sleeve (5072) and the support block (5071).

6. The ceiling-mounted projector according to claim 1, characterized in that, It also includes a drive unit (6), which includes two drive motors (601) fixedly connected to the mounting box (1). A toothed ring (602) is fixedly sleeved on the threaded sleeve (506). The output shaft of one of the drive motors (601) is fixedly connected to the rotating shaft (201), and the output shaft of the other drive motor (601) is fixedly connected to a drive gear (603) that meshes with the toothed ring (602).

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