Projector teaching aid

Abstract

The utility model relates to the technical field of projectors, and discloses a projector teaching aid which comprises a cylinder seat, a telescopic cylinder and a storage cylinder are arranged on the cylinder seat, the telescopic cylinder comprises an outer cylinder body and a telescopic sleeve, a first fixing plate is arranged at the top of the telescopic sleeve, and a second fixing plate is hinged to the top of the first fixing plate through a hinge. A gun-barrel-shaped projector body is arranged at the bottom of the second fixing plate, and the projector body corresponds to the storage barrel; a connecting rod is hinged to the top face of the second fixing plate, a fixing rod is hinged to the end of the connecting rod, a pitching adjusting mechanism detachably connected with the fixing rod is arranged at the top of the first fixing plate, and when the fixing rod is connected with the pitching adjusting mechanism, the projector body is in an upward overturning state; and when the fixing rod is separated from the pitching adjusting mechanism, the projector body can be overturned to an orientation state and can be accommodated in the accommodating cylinder along with the contraction of the telescopic sleeve. When the projector body is not used, the projector body can be stored in the storage cylinder after being turned over, a good protection effect is achieved, and the projector is convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of projectors, in particular to a projector teaching aid. Background Art

[0002] Projectors are commonly used in multimedia teaching and training environments. Existing projectors are either suspended or supported by a projector stand, allowing for adjustable height and projection angle. Suspended projectors are generally only suitable for fixed locations, while projector stands offer greater portability and flexibility. However, the overall design of existing projector stands is not ideal for storage. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems and provide a projector teaching aid. When the projector body is not in use, it can be turned over and stored in a storage tube for easy carrying.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a projector teaching aid, including a cylinder seat, the cylinder seat is provided with a telescopic cylinder and a storage cylinder, the telescopic cylinder includes an outer cylinder and a telescopic sleeve, the top of the telescopic sleeve is provided with a first fixing plate, the top of the first fixing plate is hingedly connected to a second fixing plate by a hinge, so that the second fixing plate can be flipped upward relative to the first fixing plate, and the bottom of the second fixing plate is provided with a cannon-shaped projector body, the projector body corresponds to the storage cylinder; the top surface of the second fixing plate is hingedly connected to a connecting rod, the end of the connecting rod is hingedly connected to a fixing rod, the top of the first fixing plate is provided with a pitch adjustment mechanism that can be detachably connected to the fixing rod, when the fixing rod is connected to the pitch adjustment mechanism, the projector body is in an upward flipped state; when the fixing rod is separated from the pitch adjustment mechanism, the projector body can be flipped to a facing state and can be accommodated in the storage cylinder as the telescopic sleeve shrinks.

[0005] Furthermore, the pitch adjustment mechanism includes a fixing seat and an adjustment rod, the fixing seat is fixed to the first fixing plate, the fixing seat is provided with a mounting groove extending toward the projector body, the adjustment rod is slidably set in the mounting groove, the adjustment rod is provided with a slot that cooperates with the fixing rod at one end close to the projector body, the other end of the adjustment rod is provided with a T-shaped handle, a first fastening bolt is provided on the outside of the slot, a fixing plate is provided at the top of the mounting slot, and a second fastening bolt for fastening the adjustment rod is provided at the top of the fixing plate.

[0006] Furthermore, a telescopic control mechanism for controlling the telescopic sleeve is provided in the outer cylinder, and the telescopic control mechanism includes a screw rod, a screw rod sleeve and a motor; the screw rod is rotatably connected to the outer cylinder, the motor is transmission-connected to the lower end of the screw rod, the telescopic sleeve is a hollow structure, the screw rod sleeve is provided outside the screw rod and is threadedly connected to the screw rod, the screw rod sleeve is fixedly connected to the lower end of the telescopic sleeve, and the screw rod sleeve is axially slidably connected to the outer cylinder.

[0007] Furthermore, a control button is provided on the outside of the cartridge seat.

[0008] Furthermore, a handle groove is provided on the outside of the cylinder seat, and a handle is rotatably connected to the handle groove.

[0009] Furthermore, the storage tube is separated into a lower chamber by a partition, and a cavity door is provided on the lower chamber.

[0010] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0011] The utility model provides a telescopic tube and a storage tube. The use height of the projector body can be adjusted by extending and retracting the telescopic tube. When in use, the fixing rod is connected to the pitch adjustment mechanism, and the projector body is in an upward flip state, and the pitch adjustment mechanism can be used to adjust the pitch angle. When not in use, the fixing rod is separated from the pitch adjustment mechanism, and the projector body is flipped to a downward state. The telescopic sleeve is retracted to store the projector body in the storage tube, which plays a good protective role and is convenient to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of a projector teaching aid from one viewing angle of the present invention;

[0013] Figure 2 For the utility model Figure 1 A partial enlarged view of

[0014] Figure 3 This is a structural schematic diagram of a projector teaching aid of the present invention from another perspective;

[0015] Figure 4 This is a schematic diagram of the structure of the projector body of the present utility model in use state;

[0016] Figure 5 It is a longitudinal sectional view of the cartridge seat of the present utility model;

[0017] In the figure: 1-cylinder seat, 2-telescopic cylinder, 3-storage cylinder, 21-outer cylinder, 22-telescopic sleeve, 4-projector body, 5-first fixed plate, 6-second fixed plate, 7-hinge, 8-connecting rod, 9-fixing rod, 10-pitch adjustment mechanism, 101-fixing seat, 103-adjusting rod, 102-mounting slot, 104-slot, 105-first fastening bolt, 106-second fastening bolt, 107-T-shaped handle, 11-handle, 12-control button, 13-cavity door, 14-partition, 15-lower chamber, 16-telescopic control mechanism, 161-screw, 162-screw sleeve, 163-motor. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0019] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0020] like Figure 1As shown, a projector teaching aid includes a cylinder base 1, on which a telescopic cylinder 2 and a storage cylinder 3 are provided. The telescopic cylinder 2 includes an outer cylinder body 21 and a telescopic sleeve 22. A first fixing plate 5 is provided on the top of the telescopic sleeve 22. The top of the first fixing plate 5 is hingedly connected to a second fixing plate 6 by a hinge 7, so that the second fixing plate 6 can be flipped upward relative to the first fixing plate 5. A cannon-shaped projector body 4 is provided at the bottom of the second fixing plate 6, and the projector body 4 corresponds to the storage cylinder 3; a connecting rod 8 is hingedly connected to the top surface of the second fixing plate 6, and a fixing rod 9 is hingedly connected to the end of the connecting rod 8. A pitch adjustment mechanism 10 that can be detachably connected to the fixing rod 9 is provided on the top of the first fixing plate 5. When the fixing rod 9 is connected to the pitch adjustment mechanism 10, the projector body 4 is in an upward flipped state; when the fixing rod 9 is separated from the pitch adjustment mechanism 10, the projector body 4 can be flipped to a downward state and can be accommodated in the storage cylinder 3 as the telescopic sleeve 22 shrinks.

[0021] like Figure 2 As shown, the pitch adjustment mechanism 10 includes a fixing base 101 and an adjustment rod 103. The fixing base 101 is fixed to the first fixing plate 5. A mounting slot 102 is provided on the fixing base 101, extending toward the projector body 4. The adjustment rod 103 is slidably disposed within the mounting slot 102. A slot 104 is provided at one end of the adjustment rod 103, which is close to the projector body 4 and engages with the fixing rod 9. A T-shaped handle 107 is provided at the other end of the adjustment rod 103. A first fastening bolt 105 is provided on the outside of the slot 104. A fixing plate is provided at the top of the fixing plate, and a second fastening bolt 106 is provided at the top of the fixing plate for fastening the adjustment rod 103. During adjustment, after the adjustment rod 103 moves to the desired position in the mounting slot 102, it is tightened by the second bolt. The movement of the adjustment rod 103 drives the connecting rod 8 to rotate, thereby adjusting the pitch angle of the projector body 4.

[0022] like Figure 5 As shown, the outer cylinder 21 is provided with a telescopic control mechanism 16 for controlling the extension and retraction of the telescopic sleeve 22. The telescopic control mechanism 16 includes a screw 161, a screw sleeve 162, and a motor 163. The screw 161 is rotatably connected to the outer cylinder 21, and the motor 163 is transmission-connected to the lower end of the screw 161. The telescopic sleeve 22 is a hollow structure. The screw sleeve 162 is sleeved outside the screw 161 and threadedly connected to the screw 161. The screw sleeve 162 is fixedly connected to the lower end of the telescopic sleeve 22 and axially slidably connected to the outer cylinder 21. Specifically, the inner wall of the outer cylinder 21 is provided with a slide rail, and the outer wall of the screw sleeve 162 is provided with a sliding portion that is slidably connected to the slide rail. During use, the motor 163 drives the screw 161 to rotate forward, driving the screw sleeve 162 to slide upward within the outer cylinder 21, causing the telescopic sleeve 22 to extend. On the contrary, the motor 163 drives the screw rod 161 to rotate in the reverse direction, driving the screw rod sleeve 162 to slide downward in the outer cylinder 21 , so that the telescopic sleeve 22 is retracted in the outer cylinder 21 .

[0023] like Figure 3 As shown, a control button 12 is provided on the outside of the cartridge base 1. A handle groove is provided on the outside of the cartridge base 1, and a handle 11 is rotatably connected in the handle groove, which makes it easy for the operator to lift and carry the cartridge.

[0024] like Figure 5 As shown, the storage tube 3 is separated into a lower chamber 15 by a partition 14, and a chamber door 13 is provided on the lower chamber 15. The lower chamber 15 can be opened through the chamber door 13, and the lower chamber 15 is convenient for placing other items.

[0025] During use, motor 163 drives screw 161 in forward rotation, extending telescopic sleeve 22 and, consequently, projector body 4 out of storage tube 3. Projector body 4 is then flipped upward, securing rod 9 on second securing plate 6 into slot 104 on adjustment rod 103, and secured with first fastening bolt 105. To adjust the pitch angle, first fastening bolt 105 is loosened, and adjustment rod 103 is pulled to move within mounting slot 102. This, in turn, pulls connecting rod 8 via securing rod 9, thereby adjusting the pitch angle of projector body 4. When not in use, securing rod 9 is disengaged from slot 104, and projector body 4 is flipped downward. As telescopic sleeve 22 retracts, projector body 4 retracts into storage tube 3, providing excellent protection and convenient portability.

[0026] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A projector teaching aid, characterized in that: The telescopic cylinder comprises a cylinder seat, on which a telescopic cylinder and a storage cylinder are provided, the telescopic cylinder comprising an outer cylinder and a telescopic sleeve, the top of the telescopic sleeve is provided with a first fixed plate, the top of the first fixed plate is hinged to a second fixed plate by a hinge, so that the second fixed plate can be flipped upward relative to the first fixed plate, and the bottom of the second fixed plate is provided with a cannon-shaped projector body, which corresponds to the storage cylinder; the top surface of the second fixed plate is hinged to a connecting rod, the end of the connecting rod is hinged to a fixing rod, and the top of the first fixed plate is provided with a pitch adjustment mechanism that can be detachably connected to the fixing rod, when the fixing rod is connected to the pitch adjustment mechanism, the projector body is in an upward flipped state; when the fixing rod is separated from the pitch adjustment mechanism, the projector body can be flipped to a facing state and can be accommodated in the storage cylinder as the telescopic sleeve contracts.

2. A projector teaching aid according to claim 1, characterized in that: The pitch adjustment mechanism includes a fixing seat and an adjustment rod, the fixing seat is fixed to the first fixing plate, the fixing seat is provided with a mounting groove extending toward the projector body, the adjustment rod is slidably arranged in the mounting groove, the adjustment rod is provided with a slot that cooperates with the fixing rod at one end close to the projector body, the other end of the adjustment rod is provided with a T-shaped handle, a first fastening bolt is provided on the outside of the slot, a fixing plate is provided at the top of the mounting slot, and a second fastening bolt for fastening the adjustment rod is provided at the top of the fixing plate.

3. A projector teaching aid according to claim 1, characterized in that: A telescopic control mechanism for controlling the telescopic sleeve is provided in the outer cylinder, and the telescopic control mechanism includes a screw rod, a screw rod sleeve and a motor; the screw rod is rotatably connected to the outer cylinder, and the motor is transmission-connected to the lower end of the screw rod; the telescopic sleeve is a hollow structure, the screw rod sleeve is sleeved outside the screw rod and is threadedly connected to the screw rod, the screw rod sleeve is fixedly connected to the lower end of the telescopic sleeve, and the screw rod sleeve is axially slidably connected to the outer cylinder.

4. A projector teaching aid according to claim 1, characterized in that: A control button is provided outside the cylinder seat.

5. The projector teaching aid according to claim 1, characterized in that: A handle groove is provided on the outside of the cylinder seat, and a handle is rotatably connected in the handle groove.

6. The projector teaching aid according to claim 1, characterized in that: The storage tube is divided into a lower chamber by a partition, and the lower chamber is provided with a chamber door.

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