CN215340675U

CN215340675U - Multimedia teaching projecting apparatus based on computer technology

Info

Publication number: CN215340675U
Application number: CN202121622266.1U
Authority: CN
Inventors: 李�根; 赫玲河
Original assignee: Baicheng Medical College
Current assignee: Baicheng Medical College
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-12-28
Anticipated expiration: 2031-07-16

Abstract

The utility model discloses a multimedia teaching projector based on computer technology in the technical field of teaching equipment, which comprises a support frame, wherein a folding frame and a projection assembly are arranged on the support frame, the support frame comprises a first cylinder, two groups of L-shaped rods are symmetrically fixed on the peripheral surface of the first cylinder, a first connecting rod is fixed between every two adjacent L-shaped rods, a second cylinder is fixed between every two first connecting rods, first supporting rods are fixed on the peripheral surfaces of the two same-side L-shaped rods, two groups of first limiting blocks are fixed on the peripheral surfaces of the first supporting rods, the folding frame comprises two second supporting rods, first rotors are fixed at two ends of the second supporting rods, the first cylinders are sleeved on the peripheral surfaces of the corresponding first supporting rods, the two first limiting blocks in each group of the first limiting blocks are respectively positioned at two sides of the corresponding first cylinders, and projection cloth is fixed on the two second supporting rods through fixing rings. According to the utility model, through the arrangement of the support frame, the folding frame and the projection assembly, the device is convenient to transfer, and meanwhile, the adjusting time is saved.

Description

Multimedia teaching projecting apparatus based on computer technology

Technical Field

The utility model relates to the technical field of teaching equipment, in particular to a multimedia teaching projector based on a computer technology.

Background

A projector, also known as a projector, is a device capable of projecting images or videos onto a curtain, and can be connected with a computer, a VCD, a DVD, a BD, a game machine, a DV and the like through different interfaces to play corresponding video signals, the projector is widely applied to families, offices, schools and entertainment places, and has different types such as CRT, LCD, DLP and the like according to different working modes, the existing projector for teaching is divided into two types, wherein one type of projector is fixed on a classroom wall, the projector has the advantages of saving the matching time of the projector and the projector, has the same obvious defects and is inconvenient to transfer to another scene for use, the other type of projector for teaching needs to be calibrated and adjusted with the projector curtain when in use, so as to ensure that the projection surface is completely positioned in the curtain, and the existing adjusting mode mostly manually adjusts the projection angles of the projector in the horizontal direction and the vertical direction, when the mode is used, the adjusting precision is low, the adjusting process is complex, and the two types of modes have inconvenience when used.

In view of the above, the present invention provides a multimedia teaching projector based on computer technology to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a multimedia teaching projector based on a computer technology, which solves the problem that the existing projector in the background technology is inconvenient to use.

In order to achieve the purpose, the utility model provides the following technical scheme: a multimedia teaching projector based on computer technology comprises a support frame, wherein a folding frame and a projection assembly are arranged on the support frame;

the supporting frame comprises a first cylinder, two groups of L-shaped rods are symmetrically fixed on the peripheral side surface of the first cylinder, first connecting rods are fixed between every two adjacent L-shaped rods, a second cylinder is fixed between every two first connecting rods and is parallel to the first cylinder, first supporting rods are fixed on the peripheral side surfaces of the L-shaped rods on the same side, and two groups of first limiting blocks are fixed on the peripheral side surfaces of the first supporting rods;

the folding frame comprises two second supporting rods, the two second supporting rods correspond to the two first supporting rods one by one respectively, first rotating cylinders are fixed at two ends of each second supporting rod and sleeved on the peripheral side faces of the corresponding first supporting rods, two first limiting blocks in each group of first limiting blocks are located on two sides of the corresponding first rotating cylinders respectively, and projection cloth is fixed on the two second supporting rods through fixing rings;

the projection assembly comprises a mounting plate, wherein a first slide bar and a second slide bar are fixed on one side of the mounting plate, the first slide bar is located in a first cylinder and is in sliding fit with the first cylinder, the second slide bar is located in a second cylinder and is in sliding fit with the second cylinder, a placing platform is fixed on the top end of the mounting plate, an electric telescopic rod is arranged on the placing platform and is connected with a projector body and between the placing platform and the projector body in a rotating mode through a rotating shaft, the two ends of the electric telescopic rod are connected with the placing platform and the projector body in a rotating mode through rotating shafts respectively, and a control key is arranged on the upper surface of the placing platform.

Preferably, two sliding grooves are symmetrically formed in the peripheral side face of the first cylinder, a clamping block is fixed to a position, corresponding to the sliding grooves, of one end of the first sliding rod, and the clamping block is located in the sliding grooves.

Preferably, a fixed plate is fixed at the bottom end of the L-shaped rod, and a roller is arranged on the lower surface of the fixed plate.

Preferably, the side of the first cylinder is symmetrically provided with two first fixing assemblies, each first fixing assembly comprises a U-shaped rod, the U-shaped rods are fixed to the first cylinder, the side of each U-shaped rod is sleeved with a second rotary drum and a spring, the side of each second rotary drum is fixed with a supporting rod, the side of each U-shaped rod is fixed with two second limiting blocks, the second rotary drums and the supporting rods are located between the two second limiting blocks, two ends of each spring are fixed to the second rotary drums and the second limiting blocks respectively, and the supporting rods are located on the outer sides of the two second supporting rods.

Preferably, a second fixing assembly is arranged between the two first supporting rods and comprises a second connecting rod, a third rotary drum is fixed at each of two ends of the second connecting rod, a positioning rod is fixed at the bottom end of the third rotary drum, and a stop block is fixed at the position, corresponding to the positioning rod, of the circumferential side surface of the first rotary drum at each of the two bottom ends.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, through the arrangement of the support frame, the folding frame and the projection assembly, the projector body and the projection cloth can be combined for use, the matching time of the projector body and the projection cloth can be saved, meanwhile, the device has a folding function, the size of the device is reduced, the device is convenient to transfer, and the device is suitable for various scenes.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the support frame, the first fixing assembly and the second fixing assembly when they are connected;

FIG. 3 is an enlarged view of part A of the present invention;

FIG. 4 is an enlarged view of part B of the present invention;

FIG. 5 is an enlarged view of part C of the present invention;

fig. 6 is a schematic structural diagram of a projection module according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-support frame, 101-first cylinder, 102-sliding groove, 103-L-shaped rod, 104-first connecting rod, 105-second cylinder, 106-fixing plate, 107-roller, 108-first support rod, 109-first limiting block, 2-folding frame, 201-second support rod, 202-first drum, 203-fixing ring, 3-projection cloth, 4-first fixing component, 401-U-shaped rod, 402-second drum, 403-supporting rod, 404-spring, 405-second limiting block, 5-second fixing component, 501-second connecting rod, 502-third drum, 503-positioning rod, 6-projection component, 601-mounting plate, 602-first sliding rod, 603-clamping block, 604-second sliding rod, 605-a placement platform, 606-a projector body and 607-an electric telescopic rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a multimedia teaching projector based on computer technology comprises a support frame 1, wherein a folding frame 2 and a projection assembly 6 are arranged on the support frame 1;

the supporting frame 1 comprises a first cylinder 101, two sliding chutes 102 are symmetrically formed in the peripheral surface of the first cylinder 101, two groups of L-shaped rods 103 are symmetrically fixed on the peripheral surface of the first cylinder 101, a first connecting rod 104 is fixed between every two adjacent L-shaped rods 103, a second cylinder 105 is fixed between every two first connecting rods 104, the second cylinder 105 is parallel to the first cylinder 101, a fixing plate 106 is fixed at the bottom end of each L-shaped rod 103, and a roller 107 is mounted on the lower surface of the fixing plate 106, so that the device is convenient to move, first supporting rods 108 are fixed on the peripheral surfaces of the L-shaped rods 103 on the same side, and two groups of first limiting blocks 109 are fixed on the peripheral surfaces of the first supporting rods 108;

the folding frame 2 comprises two second supporting rods 201, the two second supporting rods 201 correspond to the two first supporting rods 108 one by one respectively, first rotary drums 202 are fixed at two ends of each second supporting rod 201, the first rotary drums 202 are sleeved on the peripheral side surfaces of the corresponding first supporting rods 108, two first limiting blocks 109 in each group of first limiting blocks 109 are located at two sides of the corresponding first rotary drums 202 respectively, and the two second supporting rods 201 are fixed with projection cloth 3 through fixing rings 203;

the projection assembly 6 comprises a mounting plate 601, a first sliding rod 602 and a second sliding rod 604 are fixed on one side of the mounting plate 601, the first sliding rod 602 is located in the first cylinder 101, the first sliding rod 602 is in sliding fit with the first cylinder 101, the second sliding rod 604 is located in the second cylinder 105, the second sliding rod 604 is in sliding fit with the second cylinder 105, a clamping block 603 is fixed at a position, corresponding to the sliding groove 102, of one end of the first sliding rod 602, the clamping block 603 is located in the sliding groove 102, limiting of the first sliding rod 602 is facilitated, a placement platform 605 is fixed at the top end of the mounting plate 601, an electric telescopic rod 607 is rotatably connected to the placement platform 605 through a rotating shaft, a projector body 606 is arranged between the placement platform 605 and the projector body 606, two ends of the electric telescopic rod 607 are respectively rotatably connected with the placement platform 605 and the projector body 606 through rotating shafts, and a control key is arranged on the upper surface of the placement platform 605.

As shown in fig. 2 and 4, two first fixing assemblies 4 are symmetrically arranged on the circumferential side of the first cylinder 101, each first fixing assembly 4 includes a U-shaped rod 401, the U-shaped rod 401 is fixed to the first cylinder 101, a second drum 402 and a spring 404 are sleeved on the circumferential side of the U-shaped rod 401, a supporting rod 403 is fixed on the circumferential side of the second drum 402, two second limiting blocks 405 are fixed on the circumferential side of the U-shaped rod 401, the second drum 402 and the supporting rod 403 are located between the two second limiting blocks 405, two ends of the spring 404 are respectively fixed to the second drum 402 and the second limiting blocks 405, and the two supporting rods 403 are located on the outer sides of the two second supporting rods 201, so as to limit the two folded second supporting rods 201.

As shown in fig. 2 and 5, a second fixing assembly 5 is disposed between the two first support rods 108, the second fixing assembly 5 includes a second connecting rod 501, two ends of the second connecting rod 501 are both fixed with third drums 502, bottom ends of the third drums 502 are fixed with positioning rods 503, and circumferential sides of the two bottom first drums 202 corresponding to the positioning rods 503 are both fixed with stoppers, so as to position the two expanded second support rods 201.

When the device is used, firstly, the device is pushed into a designated classroom, at the moment, the device is in a folded state, then, the folding frame 2 and the projection assembly 6 are unfolded in sequence, when the folding frame 2 is unfolded, firstly, the two second supporting rods 201 are unfolded outwards, in the process, the second supporting rods 201 extrude the supporting rods 403, then the second rotary drum 402 rotates along the U-shaped rod 401, meanwhile, the spring 404 deforms under stress, the limit on the second supporting rod 201 is relieved, when the two second supporting rods 201 are completely unfolded, the second connecting rod 501 is held by a hand, so that the third rotary drum 502 slides along the first supporting rod 108 and the positioning rod 503 is clamped with the stop block, when the projection assembly 6 is unfolded, the mounting plate 601 is held by the hand and stretched outwards, in the process, the first sliding rod 602 and the second sliding rod 604 slide along the first cylinder 101 and the second cylinder 105 respectively, and then, the electric telescopic rod 607 is started through the control key, the projector body 606 is gradually turned upward, and the angle of the projector body 606 is adjusted.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A multimedia teaching projecting apparatus based on computer technology, its characterized in that: the device comprises a support frame (1), wherein a folding frame (2) and a projection assembly (6) are arranged on the support frame (1);

the supporting frame (1) comprises a first cylinder (101), two groups of L-shaped rods (103) are symmetrically fixed on the peripheral side surface of the first cylinder (101), a first connecting rod (104) is fixed between every two adjacent L-shaped rods (103), a second cylinder (105) is fixed between every two first connecting rods (104), the second cylinder (105) is parallel to the first cylinder (101), a first supporting rod (108) is fixed on the peripheral side surface of each L-shaped rod (103) on the same side, and two groups of first limiting blocks (109) are fixed on the peripheral side surface of each first supporting rod (108);

the folding frame (2) comprises two second supporting rods (201), the two second supporting rods (201) correspond to the two first supporting rods (108) one by one respectively, first rotary drums (202) are fixed at two ends of each second supporting rod (201), the first rotary drums (202) are sleeved on the peripheral side surfaces of the corresponding first supporting rods (108), two first limiting blocks (109) in each group of first limiting blocks (109) are located on two sides of the corresponding first rotary drums (202) respectively, and projection cloth (3) is fixed on the two second supporting rods (201) through fixing rings (203);

the projection assembly (6) comprises a mounting plate (601), a first slide bar (602) and a second slide bar (604) are fixed on one side of the mounting plate (601), the first slide bar (602) is located within the first cylinder (101) and the first slide bar (602) is in sliding engagement with the first cylinder (101), the second slide bar (604) is located within the second cylinder (105) and the second slide bar (604) is in sliding engagement with the second cylinder (105), a placing platform (605) is fixed at the top end of the mounting plate (601), the projector body (606) is rotatably connected on the placing platform (605) through a rotating shaft, an electric telescopic rod (607) is arranged between the placing platform (605) and the projector body (606), both ends of the electric telescopic rod (607) are respectively and rotationally connected with the placing platform (605) and the projector body (606) through rotating shafts, and the upper surface of the placing platform (605) is provided with a control key.

2. A computer technology based multimedia teaching projector according to claim 1, wherein: two sliding grooves (102) are symmetrically formed in the peripheral side surface of the first cylinder (101), a clamping block (603) is fixed at a position, corresponding to the sliding grooves (102), of one end of the first sliding rod (602), and the clamping block (603) is located in the sliding grooves (102).

3. A computer technology based multimedia teaching projector according to claim 1, wherein: the bottom end of the L-shaped rod (103) is fixed with a fixing plate (106), and the lower surface of the fixing plate (106) is provided with a roller (107).

4. A computer technology based multimedia teaching projector according to claim 1, wherein: first drum (101) week side symmetry is equipped with two first fixed subassemblies (4), first fixed subassembly (4) are including U-shaped pole (401), U-shaped pole (401) are fixed with first drum (101), U-shaped pole (401) week side cover is equipped with second rotary drum (402) and spring (404), second rotary drum (402) week side is fixed with branch (403), U-shaped pole (401) week side is fixed with two second stopper (405) and second rotary drum (402) and branch (403) are located between two second stopper (405), spring (404) both ends are fixed with second rotary drum (402) and second stopper (405) respectively, two branch (403) are located two second bracing piece (201) outsides.

5. A computer technology based multimedia teaching projector according to claim 1, wherein: a second fixing component (5) is arranged between the two first supporting rods (108), the second fixing component (5) comprises a second connecting rod (501), both ends of the second connecting rod (501) are respectively fixed with a third rotating drum (502), the bottom end of the third rotating drum (502) is fixed with a positioning rod (503), and the circumferential sides of the first rotating drums (202) at both bottom ends are respectively fixed with a stop block at the position corresponding to the positioning rod (503).