CN213745770U

CN213745770U - Distance adjusting device for multimedia equipment

Info

Publication number: CN213745770U
Application number: CN202022844948.9U
Authority: CN
Inventors: 张平
Original assignee: Wuhan Dongruitong Intelligent System Engineering Co ltd
Current assignee: Wuhan Dongruitong Intelligent System Engineering Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-07-20
Anticipated expiration: 2030-11-30

Abstract

The utility model belongs to the technical field of multimedia device, a distance adjusting device for multimedia device is disclosed, the mounting panel comprises a mounting plate, one side of mounting panel is equipped with the projection board, the top of mounting panel is equipped with the installation piece, one side of installation piece is fixed with the flexible urceolus mutually perpendicular with the mounting panel, flexible urceolus scalable connection has flexible interior pole, the other end of flexible interior pole is fixed with flexible interior pole vertically lifting rod spare, the one end that telescopic interior pole was kept away from to lifting rod spare is fixed with the guard box that is used for laying multimedia device, one side that the guard box is close to the projection board opens and constitutes the projection mouth. The utility model can conveniently adjust the distance between the projector and the projection plate, and avoid the problem of manual adjustment; moreover, the projector can be driven by the electric push rod to be lifted and adjusted, the buffer of the lifting of the projector is realized under the action of the buffer spring, the projector is better protected, and the lifting is more stable.

Description

Distance adjusting device for multimedia equipment

Technical Field

The utility model belongs to the technical field of multimedia device, concretely relates to distance adjusting device for multimedia device.

Background

The multimedia teaching is that in the teaching process, according to the characteristics of a teaching target and a teaching object, a modern teaching medium is reasonably selected and applied through teaching design, the modern teaching medium is organically combined with a traditional teaching means, the modern teaching medium participates in the whole teaching process together, the modern education theory and technology are applied, and the teaching process and the resource are designed, developed, applied, managed and evaluated to realize the theory and practice of teaching modernization.

Among the prior art, the inconvenient distance of adjusting between projecting head and the projection board of current multimedia teaching equipment needs to be adjusted manually, and the operation is inconvenient, and the projecting apparatus also fixes on it, the nimble dismouting of not being convenient for also has the problem of the projecting apparatus that can not adjust from top to bottom moreover for projected accuracy is lower, does not use.

SUMMERY OF THE UTILITY MODEL

At least one technical problem for the prior art who solves exists, the utility model aims to provide a distance adjusting device for multimedia device.

The utility model discloses the technical scheme who adopts does:

a distance adjusting device for multimedia equipment comprises a mounting plate, wherein a projection plate is arranged on one side of the mounting plate, a mounting block is arranged at the top of the mounting plate, a telescopic outer cylinder perpendicular to the mounting plate is fixed on one side of the mounting block, a telescopic inner rod is connected to the telescopic outer cylinder in a telescopic mode, a lifting rod perpendicular to the telescopic inner rod is fixed at the other end of the telescopic inner rod, a protective box used for placing multimedia equipment is fixed at one end, away from the telescopic inner rod, of the lifting rod, and one side, close to the projection plate, of the protective box is open and forms a projection opening;

the top of the telescopic outer cylinder is provided with an opening, two sides of the opening are provided with rotating seats, a transmission gear is connected between the rotating seats at the two sides through a rotating shaft, and part of the transmission gear extends into the telescopic outer cylinder through the opening; the top of the telescopic inner rod is provided with racks distributed along the length direction of the telescopic inner rod, and the racks are meshed with the transmission gear; the rotating shaft is connected with a driving device.

In a preferred technical scheme, the lifting rod piece comprises a lifting upper rod, a lifting lower rod, an electric push rod and a buffer spring, an inner cavity is arranged in the lifting upper rod, the electric push rod is fixed at the top of the inner cavity, a push plate is fixed at the driving end of the electric push rod, the lifting lower rod is fixed on one side of the push plate, which is far away from the electric push rod, and the bottom end of the lifting lower rod penetrates out of the inner cavity and is fixedly connected with the protection box; the buffer spring is sleeved outside the lifting lower rod in the inner cavity, and two ends of the buffer spring are respectively abutted to the end wall of the bottom end of the push plate and the end wall of the bottom end of the inner cavity.

In a preferred technical scheme, the driving device comprises a first belt wheel, a second belt wheel and a driving motor, the driving motor is arranged at the top of the telescopic outer cylinder, and an output shaft of the driving motor is fixedly connected with the first belt wheel; one end of the rotating shaft is fixedly connected with the second belt wheel, and the first belt wheel is connected with the second belt wheel through a transmission belt.

In the preferred technical scheme, the protective housing is provided with a side cover plate on one side of the projection port of the protective housing, one end of the side cover plate is clamped with the top of the projection port, and the bottom end of the side cover plate is hinged with the bottom of the projection port.

In a preferred technical scheme, a threading opening or a plurality of threading holes are formed in one side, far away from the projection opening, of the protective box.

In the preferred technical scheme, still including locating the controller of protective housing outer wall, the controller respectively with electric putter and driving motor electric connection. In a preferred embodiment of the present invention, the polymer,

in a preferred technical scheme, the telescopic outer cylinder is connected with the telescopic inner rod in a sliding mode.

In a preferred embodiment, the belt is a belt.

The utility model has the advantages that:

the utility model can extend or shorten the relative telescopic outer cylinder of the telescopic inner rod under the driving of the driving motor through the matching of the gear rack and the telescopic structure, thereby conveniently adjusting the distance between the projector and the projection plate and avoiding the problem of manual adjustment; moreover, through setting up the lift member, the projecting apparatus can carry out lift adjustment under the drive through electric putter, also realizes the buffering to its lift through buffer spring's effect, and better protects the projecting apparatus, and it is also more steady to go up and down. Simultaneously, the projecting apparatus is installed through the protective housing, can further realize the protection to the projecting apparatus, and the dismouting is more convenient.

Drawings

Fig. 1 is a schematic sectional structure of the present invention;

FIG. 2 is a schematic top view of the telescopic outer barrel and the telescopic inner rod of the present invention;

fig. 3 is a front view of the present invention.

In the figure: 1-mounting a plate; 2-a projection plate; 3-mounting a block; 4, telescoping the outer cylinder; 5-a telescopic inner rod; 6-driving a motor; 7-a transmission gear; 8-a rack; 9-lifting the upper rod; 10-electric push rod; 11-a buffer spring; 12-a protective box; 13-threading mouth; 14-side cover plate; 15-a projector; 16-opening; 17-a first pulley; 18-a second pulley; 19-a controller.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that the indication of the position or the positional relationship is based on the position or the positional relationship shown in the drawings, or the position or the positional relationship that the utility model is usually placed when using, or the position or the positional relationship that the skilled person conventionally understands, or the position or the positional relationship that the utility model is usually placed when using, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or suggest that the indicated device or element must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as limiting the present invention.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. For those skilled in the art, the drawings of the present invention can be understood in detail to describe the embodiments of the present invention clearly and completely, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-3, a distance adjusting device for multimedia equipment comprises a mounting plate 1, a projection plate 2 is arranged on one side of the mounting plate 1, a mounting block 3 is arranged at the top of the mounting plate 1, a telescopic outer barrel 4 perpendicular to the mounting plate 1 is fixed on one side of the mounting block 3, the telescopic outer barrel 4 is telescopically connected with a telescopic inner rod 5, a lifting rod member perpendicular to the telescopic inner rod 5 is fixed on the other end of the telescopic inner rod 5, a protection box 12 for placing multimedia equipment is fixed on one end of the lifting rod member away from the telescopic inner rod 5, and one side of the protection box 12 close to the projection plate 2 is open and forms a projection opening; the telescopic outer cylinder 4 is fixed on the mounting plate 1 through the mounting block 3, and one end of the telescopic inner rod 5 extends into the outer cylinder and is in sliding fit with the outer cylinder, so that the telescopic inner rod can be telescopic. The lifting rod is used for enabling the projector 15 to be capable of lifting and adjusting and is fixedly connected with the telescopic inner rod 5. The protective box 12 is fixed at the bottom end of the telescopic inner rod 5 through a bolt connecting structure and can be detached, and the size of the protective box 12 is matched with that of the projector 15, so that the projector 15 can be conveniently placed in the protective box; the projection port of the protection box 12 is convenient for projection light beams of the projector 15 to project to the projection plate 2 for imaging, and the projector 15 can be conveniently taken out and put into the protection box through the projection port, so that the protection box is more practical and convenient.

An opening 16 is formed in the top of the telescopic outer cylinder 4, rotating seats are arranged on two sides of the opening 16, a transmission gear 7 is connected between the rotating seats on the two sides through a rotating shaft, and part of the transmission gear 7 extends into the telescopic outer cylinder 4 through the opening 16; the top of the telescopic inner rod 5 is provided with racks 8 distributed along the length direction of the telescopic inner rod, and the racks 8 are meshed with the transmission gear 7; the rotating shaft is connected with a driving device. Drive gear 7 installs the 16 both sides in the opening at 4 tops of flexible urceolus through rotating the seat to drive gear 7's bottom stretches into in flexible urceolus 4 and decides the rack 8 meshing at top with flexible interior pole 5, like this under drive arrangement's drive, accessible gear and rack 8 structure make flexible interior pole 5 extend or shorten for flexible urceolus 4, the realization is to projecting apparatus 15 and projection board 2's regulation, thereby avoided needing the manual regulation of people, and is more convenient, practical.

As shown in fig. 1, in a preferred embodiment of the present invention, the lifting rod includes a lifting upper rod 9, a lifting lower rod, an electric push rod 10 and a buffer spring 11, an inner cavity is disposed in the lifting upper rod 9, the electric push rod 10 is fixed to the top of the inner cavity, a push plate is fixed to the driving end of the electric push rod 10, the lifting lower rod is fixed to one side of the push plate away from the electric push rod 10, and the bottom end of the lifting lower rod penetrates through the inner cavity and is fixedly connected to the protection box 12; buffer spring 11 cup joints the lift lower extreme outside in the inner chamber, the both ends of the spring of buffering respectively with push pedal and inner chamber bottom end wall butt. The electric push rod 10 is arranged in the inner cavity of the lifting upper rod 9 and can drive the lifting lower rod to lift relative to the lifting upper rod 9, so that the height of the projector 15 can be adjusted, and the head portrait of the projector 15 is more accurate. Through setting up buffer spring 11, can make projecting apparatus 15 can obtain certain buffering at the lift in-process, and then avoid its easy vibration at the lift in-process, also make its lift more steady.

As shown in fig. 2, in a preferred embodiment of the present invention, the driving device includes a first pulley 17, a second pulley 18 and a driving motor 6, the driving motor 6 is disposed on the top of the telescopic outer cylinder 4, and an output shaft of the driving motor 6 is fixedly connected to the first pulley 17; one end of the rotating shaft is fixedly connected with the second belt wheel 18, and the first belt wheel 17 is connected with the second belt wheel 18 through a transmission belt. The driving motor 6 drives the first belt pulley 17 through an output shaft thereof, the first belt pulley 17 drives the second belt pulley 18 through a transmission belt, and the second belt pulley 18 is coaxial and fixedly connected with the rotating shaft, so that the transmission gear 7 also rotates when the second belt pulley 18 rotates, and the telescopic inner rod 5 can extend or shorten relative to the telescopic outer cylinder 4.

As shown in fig. 1 and 3, in a preferred embodiment of the present invention, the protective box 12 is provided with a side cover plate 14 on one side of the projection opening, one end of the side cover plate 14 is connected with the top of the projection opening in a snap-fit manner, and the bottom end of the side cover plate 14 is hinged with the bottom of the projection opening. The side cover plate 14 is arranged to close the protective box 12 when not in use, so as to protect the projector 15, and when in use, the side cover plate 14 can be opened to carry out projection use, and meanwhile, the projector 15 can be conveniently taken out or placed.

As shown in fig. 1, in a preferred embodiment of the present invention, a threading opening 13 or a plurality of threading holes are disposed on one side of the protective box 12 away from the projection opening. When setting up to threading mouth 13, its size can supply the passing of its all cables, when setting up to a plurality of through wires holes, the size homoenergetic of every through wires hole can be convenient for the passing of circuit. Through setting up such threading structure, can make the row of circuit establish more conveniently, also more pleasing to the eye.

As shown in fig. 3, in a preferred embodiment of the present invention, the present invention further comprises a controller 19 disposed on an outer wall of the protective box 12, wherein the controller 19 is electrically connected to the electric push rod 10 and the driving motor 6, respectively. The controller 19 controls the electric putter 10 and the driving motor 6, respectively.

As shown in fig. 1, in a preferred embodiment of the present invention, the telescopic outer cylinder 4 is slidably connected to the telescopic inner rod 5. Therefore, the extension of the telescopic inner rod 5 and the telescopic outer cylinder 4 can be more stable

In a preferred embodiment of the present invention, the transmission belt is a belt.

The utility model discloses a theory of operation: when the projector is used, the power supply is connected firstly, then the driving motor 6 is started through the controller 19, the telescopic inner rod 5 moves the projector 15 to the position suitable for the projection plate 2 through the driving of the driving motor 6, then the height of the projector 15 is adjusted through the controller 19 to control the electric push rod 10 according to the actual projection condition of the projector 15, and the projection of the projector 15 is more accurate.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims

1. A distance adjusting device for multimedia equipment is characterized in that: the multifunctional projection device comprises a mounting plate (1), wherein a projection plate (2) is arranged on one side of the mounting plate (1), a mounting block (3) is arranged at the top of the mounting plate (1), a telescopic outer barrel (4) perpendicular to the mounting plate (1) is fixed on one side of the mounting block (3), a telescopic inner rod (5) is telescopically connected with the telescopic outer barrel (4), a lifting rod piece perpendicular to the telescopic inner rod (5) is fixed on the other end of the telescopic inner rod (5), a protection box (12) used for placing multimedia equipment is fixed at one end, away from the telescopic inner rod (5), of the lifting rod piece, and one side, close to the projection plate (2), of the protection box (12) is opened and forms a projection opening;

an opening (16) is formed in the top of the telescopic outer cylinder (4), rotating seats are arranged on two sides of the opening (16), a transmission gear (7) is connected between the rotating seats on the two sides through a rotating shaft, and part of the transmission gear (7) extends into the telescopic outer cylinder (4) through the opening (16); the top of the telescopic inner rod (5) is provided with racks (8) distributed along the length direction of the telescopic inner rod, and the racks (8) are meshed with the transmission gear (7); the rotating shaft is connected with a driving device.

2. The distance adjusting apparatus for multimedia device according to claim 1, wherein: the lifting rod piece comprises a lifting upper rod (9), a lifting lower rod, an electric push rod (10) and a buffer spring (11), an inner cavity is arranged in the lifting upper rod (9), the electric push rod (10) is fixed to the top of the inner cavity, a push plate is fixed to the driving end of the electric push rod (10), the lifting lower rod is fixed to one side, away from the electric push rod (10), of the push plate, and the bottom end of the lifting lower rod penetrates out of the inner cavity and is fixedly connected with the protective box (12); buffer spring (11) cup joints the lift lower extreme outside in the inner chamber, the both ends of the spring of buffering respectively with push pedal and inner chamber bottom end wall butt.

3. The distance adjusting apparatus for multimedia device according to claim 2, wherein: the driving device comprises a first belt wheel (17), a second belt wheel (18) and a driving motor (6), the driving motor (6) is arranged at the top of the telescopic outer cylinder (4), and an output shaft of the driving motor (6) is fixedly connected with the first belt wheel (17); one end of the rotating shaft is fixedly connected with the second belt wheel (18), and the first belt wheel (17) is connected with the second belt wheel (18) through a transmission belt.

4. A distance adjusting apparatus for a multimedia device according to any one of claims 1 to 3, wherein: the protective box (12) is equipped with side shield board (14) in one side of its projection mouth, the one end and the projection mouth top joint of side shield board (14), the bottom of side shield board (14) is articulated with the bottom of projection mouth.

5. The distance adjusting apparatus for multimedia device according to claim 4, wherein: one side of the protective box (12) far away from the projection opening is provided with a threading opening (13) or a plurality of threading holes.

6. The distance adjusting apparatus for multimedia device according to claim 3, wherein: the device is characterized by further comprising a controller (19) arranged on the outer wall of the protective box (12), wherein the controller (19) is electrically connected with the electric push rod (10) and the driving motor (6) respectively.

7. The distance adjusting apparatus for multimedia device according to claim 1, wherein: the telescopic outer cylinder (4) is connected with the telescopic inner rod (5) in a sliding manner.

8. The distance adjusting apparatus for multimedia device according to claim 3, wherein: the transmission belt is a belt.