Exhibition hall projection demonstration device
By designing a projection demonstration device for exhibition halls with electric telescopic rods and automated ash cleaning mechanism, the problem of inconvenience of projection devices after use is solved, and the projection effect is improved through the automated ash cleaning mechanism, achieving efficient aesthetics and cleanliness.
Patent Information
- Application Number
- CN202421322527.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-06-11
AI Technical Summary
The existing exhibition hall projection device is inconvenient for hiding and storage after use, and the lens is prone to stick to dust, affecting the projection effect.
A exhibition hall projection demonstration device including a ceiling, a housing and a projector body is designed to store and hide the projector through an electric telescopic rod, and to clean up dust on the lens through an automated cleaning mechanism using an annular brush and a rotating ring.
It realizes convenient storage and hiding of the projector, improves the aesthetics of the exhibition hall, and through the automated cleaning process, the projection effect is significantly improved, with good cleaning effect and high automation.
Smart Images
Figure CN222580394U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of exhibition hall projection, in particular to an exhibition hall projection demonstration device. Background Art
[0002] In digital exhibition halls, projection devices are often needed to demonstrate products. Exhibition hall projection devices can improve the interactive experience with the audience, use interactive projection technology to attract audience participation, increase the fun of corporate exhibition halls, and also improve the effect of publicity. For this purpose, an exhibition hall projection demonstration device is proposed.
[0003] In the prior art, the projection device is not easy to hide and store after use, which affects the aesthetics of the exhibition hall. In addition, the lens of the projection device often accumulates a lot of dust after being used for a period of time, which reduces the projection effect. Since the projector is generally set high on the ceiling, it is not convenient to clean the lens. Therefore, we have launched an exhibition hall projection demonstration device. Utility Model Content
[0004] The purpose of the utility model is to provide an exhibition hall projection demonstration device, which is not only convenient for storing and hiding the projector after use, thereby improving the aesthetics of the exhibition hall, but also convenient for cleaning the lens, with good cleaning effect and high degree of automation, so as to solve the problems raised in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A projection demonstration device for an exhibition hall comprises a ceiling, a shell and a projector body, a lens is provided on one side of the projector body, a mounting groove is provided on the ceiling, the shell is fixedly arranged inside the mounting groove, the projector body is arranged in the shell, an electric telescopic rod is fixedly arranged in the middle of the upper inner wall of the shell, the output end of the electric telescopic rod is fixedly connected to the upper end of the projector body, a baffle is slidably provided in the opening of the mounting groove, the upper end of the baffle is fixedly connected to the bottom of the projector body, and a cleaning mechanism for cleaning the lens is provided on the inner wall of the shell.
[0007] Preferably, the cleaning mechanism includes a rotating ring, which is arranged on the outside of the projector body, an annular brush is fixedly provided on the inner ring wall of the rotating ring, the lens is arranged in contact with the annular brush, an annular groove is opened on the outer ring wall of the rotating ring, a fixing ring is slidably provided in the annular groove, the outer ring wall of the fixing ring is fixedly connected to the inner wall of the shell, gear teeth are provided on the upper side of the rotating ring, a motor is fixedly provided on the upper inner wall of the shell, a gear is fixedly provided on the output end of the motor, and the gear is meshed with the gear teeth.
[0008] Preferably, the edge of the baffle is chamfered.
[0009] Preferably, a sealing ring is fixedly provided at the chamfer.
[0010] Preferably, the inner ring wall of the fixing ring is evenly provided with a plurality of spherical grooves, and balls are slidably arranged in the plurality of spherical grooves, and one side of the balls is slidably connected to the groove wall of the annular groove.
[0011] Preferably, the annular brush is configured as a wool brush.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] The projection demonstration device for the exhibition hall is provided with a ceiling, a shell, a baffle, gears, an annular brush, a fixed ring, a lens, a rotating ring, a projector body, a gear, a motor, an electric telescopic rod, and a ball. The electric telescopic rod is started, and the output end of the electric telescopic rod drives the projector body to move to the outside of the shell, and the projector body can project onto the exhibition hall. After use, the electric telescopic rod is started again, and the output end of the electric telescopic rod drives the projector body to move to the inside of the shell for storage. The baffle at the bottom of the projector body can hide the projector body. The motor is started, and the motor drives the gear to rotate. The gear drives the rotating ring to rotate on the fixed ring through the gear teeth. The rotating ring drives the annular brush to clean the dust from the lens. Not only is it convenient to store and hide the projector after use, which improves the aesthetics of the exhibition hall, but it is also convenient to clean the lens, and the cleaning effect is good and the degree of automation is high. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The present invention is a structural schematic diagram of a projection demonstration device in an exhibition hall.
[0015] Figure 2 The present invention is a schematic diagram of the internal structure of an exhibition hall projection demonstration device.
[0016] Figure 3 The figure is a side structural diagram of a projection demonstration device for an exhibition hall.
[0017] In the figure: 1. ceiling; 2. shell; 3. baffle; 4. gear teeth; 5. annular brush; 6. fixed ring; 7. lens; 8. rotating ring; 9. projector body; 10. gear; 11. motor; 12. electric telescopic rod; 13. ball bearing. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] See also Figures 1 to 3 , the utility model provides a technical solution:
[0020] A projection demonstration device for an exhibition hall comprises a ceiling 1, a shell 2 and a projector body 9, a lens 7 is arranged on one side of the projector body 9, a mounting groove is arranged on the ceiling 1, the shell 2 is fixedly arranged inside the mounting groove, the projector body 9 is arranged in the shell 2, an electric telescopic rod 12 is fixedly arranged in the middle of the upper inner wall of the shell 2, the output end of the electric telescopic rod 12 is fixedly connected to the upper end of the projector body 9, a baffle 3 is slidably arranged in the opening of the mounting groove, the upper end of the baffle 3 is fixedly connected to the bottom of the projector body 9, and a cleaning mechanism for cleaning the lens 7 is arranged on the inner wall of the shell 2.
[0021] The cleaning mechanism includes a rotating ring 8, which is arranged on the outside of the projector body 9. An annular brush 5 is fixedly provided on the inner ring wall of the rotating ring 8. The lens 7 is arranged in contact with the annular brush 5. An annular groove is opened on the outer ring wall of the rotating ring 8. A fixed ring 6 is slidably arranged in the annular groove. The outer ring wall of the fixed ring 6 is fixedly connected to the inner wall of the shell 2. Gear teeth 4 are provided on the upper side of the rotating ring 8. A motor 11 is fixedly provided on the upper inner wall of the shell 2. A gear 10 is fixedly provided on the output end of the motor 11. The gear 10 is meshed with the gear teeth 4.
[0022] The edge of the baffle 3 is provided with a chamfer, and a sealing ring is fixedly provided at the chamfer. The sealing ring and the chamfer cooperate to improve the sealing performance.
[0023] The inner ring wall of the fixed ring 6 is evenly provided with a plurality of spherical grooves, in which balls 13 are slidably arranged, and one side of the balls 13 is slidably connected to the groove wall of the annular groove, so that the balls 13 reduce the friction force of the rotating ring 8.
[0024] The annular brush 5 is configured as a wool brush, which will not cause wear to the lens 7 and has a good cleaning effect.
[0025] When in use, the electric telescopic rod 12 is started, and the output end of the electric telescopic rod 12 drives the projector body 9 to move to the outside of the shell 2, and the projector body 9 can project the exhibition hall. After use, the electric telescopic rod 12 is started again, and the output end of the electric telescopic rod 12 drives the projector body 9 to move to the inside of the shell 2 for storage. The baffle 3 at the bottom of the projector body 9 can provide concealment for the projector body 9, and the motor 11 is started. The motor 11 drives the gear 10 to rotate, and the gear 10 drives the rotating ring 8 to rotate on the fixed ring 6 through the gear teeth 4. The rotating ring 8 drives the annular brush 5 to clean the dust of the lens 7. Not only is it convenient to store and hide the projector after use, which improves the aesthetics of the exhibition hall, but it is also convenient to clean the lens, with good cleaning effect and high degree of automation.
[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.
Claims
1. An exhibition hall projection demonstration device, comprising a ceiling (1), a housing (2) and a projector body (9), characterized in that: A lens (7) is provided on one side of the projector body (9), a mounting groove is provided on the ceiling (1), the shell (2) is fixedly arranged inside the mounting groove, the projector body (9) is arranged inside the shell (2), an electric telescopic rod (12) is fixedly arranged in the middle of the upper inner wall of the shell (2), the output end of the electric telescopic rod (12) is fixedly connected to the upper end of the projector body (9), a baffle (3) is slidably arranged in the opening of the mounting groove, the upper end of the baffle (3) is fixedly connected to the bottom of the projector body (9), and a dust cleaning mechanism capable of cleaning the lens (7) is provided on the inner wall of the shell (2).
2. The exhibition hall projection demonstration device according to claim 1, characterized in that: The dust cleaning mechanism comprises a rotating ring (8), the rotating ring (8) is arranged outside the projector body (9), an annular brush (5) is fixedly provided on the inner ring wall of the rotating ring (8), the lens (7) is arranged in contact with the annular brush (5), an annular groove is provided on the outer ring wall of the rotating ring (8), a fixed ring (6) is slidably arranged in the annular groove, the outer ring wall of the fixed ring (6) is fixedly connected to the inner wall of the shell (2), gear teeth (4) are provided on the upper side of the rotating ring (8), a motor (11) is fixedly provided on the upper inner wall of the shell (2), a gear (10) is fixedly provided on the output end of the motor (11), and the gear (10) is meshed with the gear teeth (4).
3. The exhibition hall projection demonstration device according to claim 1, characterized in that: The edge of the baffle (3) is provided with a chamfer.
4. The exhibition hall projection demonstration device according to claim 3, characterized in that: A sealing ring is fixedly provided at the chamfer.
5. The exhibition hall projection demonstration device according to claim 2, characterized in that: The inner ring wall of the fixing ring (6) is evenly provided with a plurality of spherical grooves, and balls (13) are slidably arranged in the plurality of spherical grooves, and one side of the balls (13) is slidably connected to the groove wall of the annular groove.
6. The exhibition hall projection demonstration device according to claim 2, characterized in that: The annular brush (5) is configured as a wool brush.