CN111873669B

CN111873669B - Chinese language and literature vocabulary division show shelf

Info

Publication number: CN111873669B
Application number: CN202010834737.9A
Authority: CN
Inventors: 何谯
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-11-09
Anticipated expiration: 2040-08-19
Also published as: CN111873669A

Abstract

The invention provides a Chinese language and literature vocabulary division display stand, which comprises a display board, a rear board, a driving stand, an extension stand, a handwriting board, a support, universal wheels, a push board, a transmission shaft, a dust exhaust device, a worm, a motor and a rear protective shell, wherein the display board is arranged on the rear board; a lower frame is connected below the front surface of the rear plate through welding; the display board is fixedly connected in front of the lower frame and the upper frame of the rear board; the active frame is movably connected above the lower frame; the lower part of the extending frame is meshed and connected with a clamping wheel on the driving frame through a self-contained rack; the back surface of the handwriting board is fixedly connected to the front surface of the extending frame through a bolt; the bracket is connected to the rear surface of the rear plate by screws; the universal wheels are respectively connected to four corners of the bottom surface of the support through bolts at four positions; it can be seen that the multimedia display rack for Chinese display is simple and convenient to control, the handwriting board can be unfolded or contracted quickly, the positioning is reliable, the function of dust exhaust is achieved, and the probability of blockage of the internal transmission structure is reduced.

Description

Chinese language and literature vocabulary division show shelf

Technical Field

The invention belongs to the technical field of language learning showing shelves, and particularly relates to a Chinese language and literature vocabulary dividing showing shelf.

Background

The Chinese language and literature professional culture has a basic theory, basic knowledge and basic skills of Chinese language and literature, and can be used for Chinese language and literature specialized talents in news literature publishing departments, scientific research institutions and organs, enterprises and institutions to conduct literature comments, Chinese language and literature teaching and research works, and practical works in the aspects of culture and propaganda.

For example, application No.: the invention discloses a CN201510505410.6 digital teaching all-in-one machine, which comprises a host shell, a wire arranging box, a display stand, a silicon controlled electronic switch, a power supply module, a computer module, a video processing unit circuit, a network management unit circuit, an Internet of things coordination unit circuit, a current detection unit circuit and an audio decoding unit circuit, wherein all the modules and the unit circuits are respectively and integrally installed on three circuit boards, the three circuit boards are installed in the host shell, and the boards are connected by a plug-in connector.

Based on the search of above-mentioned patent to and the structure discovery among the combination prior art, chinese language study in the above-mentioned patent is with show support when using, and the show support for multimedia when using, the teacher can use the chalk to do supplementary explanation on the handwriting pad, and present common multimedia teaching equipment is usually arranged the handwriting pad in show screen the place ahead in, is not convenient for switch, and the easy deposit of dust that the chalk produced increases the resistance of slip handwriting pad in the spout.

Disclosure of Invention

In order to solve the technical problems, the invention provides a Chinese language and literature vocabulary dividing display rack, which is used for solving the problems that when the display rack for Chinese language learning in the patent is used, a teacher can use chalk to perform auxiliary explanation on a handwriting board when the display rack for multimedia learning is used, the handwriting board is usually arranged in front of a display screen by the conventional common multimedia teaching equipment, switching is inconvenient, and dust generated by the chalk is easy to deposit in a sliding groove to increase the resistance of the sliding handwriting board.

The invention relates to a purpose and an effect of a Chinese language and literature vocabulary division display stand, which are achieved by the following specific technical means:

a Chinese language and literature vocabulary division display stand comprises a display board, a rear board, a driving frame, an extension frame, a handwriting board, a support, universal wheels, a push board, a transmission shaft, a dust exhaust device, a worm, a motor and a rear protective shell; a lower frame is connected below the front surface of the rear plate through welding; the display board is fixedly connected in front of the lower frame and the upper frame of the rear board; the active frame is movably connected above the lower frame; the lower part of the extending frame is meshed and connected with a clamping wheel on the driving frame through a self-contained rack; the back surface of the handwriting board is fixedly connected to the front surface of the extending frame through a bolt; the bracket is connected to the rear surface of the rear plate by screws; the universal wheels are respectively connected to four corners of the bottom surface of the support through bolts at four positions; the lower end of the push plate is connected to the upper surface of the active frame through welding, and the upper end of the push plate is movably connected below the upper frame of the rear plate; the shaft of the transmission shaft is rotatably connected in the middle of the rear plate through a bearing, and the driving wheel of the transmission shaft is meshed and connected with the push rods of the two push plates; the dust exhaust device is rotationally connected to the frame body of the ventilation opening of the rear plate, and the shaft of the dust exhaust device is connected to the driving belt wheel of the transmission shaft through the synchronous belt; the rear protective shell is fixedly connected to the rear surface of the rear plate; the motor is fixedly connected above the rear protective shell, and an output shaft of the motor is fixedly connected with the transmission; the upper end of the worm is connected with the output end of the transmission, and the worm is rotatably connected to the rear surface of the rear plate through a bearing; the worm is meshed with a worm wheel on the transmission shaft.

Furthermore, two ventilation openings are formed in the upper portion of the surface of the rear plate, an upper frame is fixedly connected to the upper portion of the front surface of the rear plate, and a rectangular groove is formed in the lower surface of the upper frame.

Furthermore, a sliding groove is formed in the middle of the upper surface of the lower frame, and a lower rack is arranged in the sliding groove.

Furthermore, the section of the active frame is in an H-shaped structure, and the middle of the active frame is rotatably connected with two clamping wheels through a bearing.

Furthermore, a first roller is rotatably connected to the upper frame of the extending frame, and a rack structure is arranged on the lower surface of the lower extending frame.

Further, the top fixedly connected with top shoe of push pedal, and the top of top shoe rotates and is connected with cylinder two, the inboard fixedly connected with push rod of push pedal, and seted up the convex groove in the push pedal.

Furthermore, a driving belt wheel is installed on the transmission shaft through a ratchet wheel structure, the driving wheel is fixedly connected to the front end of the transmission shaft, and a worm wheel is fixedly connected to the rear end of the transmission shaft.

Furthermore, the dust exhaust device comprises an upper dust exhaust fan and a lower exhaust fan, and the shafts of the upper dust exhaust fan and the lower exhaust fan are connected through a synchronous belt.

Compared with the prior art, the invention has the following beneficial effects:

through the cooperation of the push plate and the transmission shaft of the structure, the transmission shaft is driven by the motor and the transmission, the transmission shaft rotates, the driving wheel is matched with the push rod to form gear rack transmission, the push plate driving the two sides expands towards the two sides or contracts towards the middle, the transmission shaft is driven by the worm gear, the worm gear transmission is utilized to have the characteristic of self-locking, the worm drives the worm wheel, the worm wheel can not reversely move, and the control is convenient.

Through the cooperation of the lower frame of this structure and initiative frame, the initiative frame is under the drive effect of push pedal, the initiative frame moves to the outside, and simultaneously, gear rack transmission takes place for the rack on two clamp wheels and the lower frame, the rack drives and presss from both sides the wheel rotation, press from both sides the wheel simultaneously and move to the outside with the initiative frame, press from both sides the wheel again with the extension frame cooperation of top, the lower surface rack that stretches the frame down with press from both sides the wheel meshing, press from both sides the wheel and rotate and drive the extension frame and move, make the extension frame extend to the outside, release show board rear with the handwriting pad, can use the handwriting pad to explain chinese vocabulary content.

Through the cooperation of the dust exhaust device of this structure and transmission shaft, be connected with driving pulley through the ratchet on the transmission shaft, but make the transmission shaft unilateral drive driving pulley, driving pulley passes through the dust exhaust device of synchronous belt drive connection top, can see out, at the handwriting pad expansion in-process, under the ratchet effect, the transmission shaft rotates and driving pulley is motionless, the dust exhaust device is motionless, when control handwriting pad withdraws, under the ratchet effect, the transmission shaft rotates and drives driving pulley and rotate, control dust exhaust device through the drive belt and rotate, two fan synchronization, inhale inside with external air, make the air discharge from the both sides of show board, blow off the chalk dust of deposit on the handwriting pad from the side, avoid the chalk dust to pile up and cause the condition of jam on the transmission system in inside.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the internal deployment structure of the present invention.

Fig. 3 is a schematic view of the appearance structure of the invention after shrinkage.

Fig. 4 is a schematic view of the unfolded appearance structure of the present invention.

FIG. 5 is a schematic diagram of a rear panel structure according to the present invention.

Fig. 6 is a schematic view of the structure of the active frame of the present invention.

Fig. 7 is a rear view of the present invention.

Fig. 8 is a schematic view of the structure of the transmission shaft of the present invention.

Figure 9 is a schematic diagram of the push plate structure of the present invention.

Fig. 10 is a partial enlarged view of fig. 2 a of the present invention.

Fig. 11 is a partial enlarged view of the invention at B of fig. 1.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a display board; 2. a back plate; 201. a vent; 202. an upper frame; 3. a lower frame; 301. a lower rack; 4. a driving frame; 401. a pinch roller; 5. an extension frame; 501. a first roller; 502. a lower stretching frame; 6. a handwriting board; 7. a transmission; 8. a support; 9. a universal wheel; 10. pushing the plate; 1001. an upper slide block; 10011. a second roller; 1002. a push rod; 1003. a convex groove; 11. a drive shaft; 1101. a driving pulley; 1102. a drive wheel; 1103. a worm gear; 12. a dust exhaust device; 1201. an upper dust exhaust fan; 1202. a lower exhaust fan; 14. a worm; 15. a motor; 17. and a rear protective shell.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 11:

the invention provides a Chinese language and literature vocabulary division display stand, which comprises a display board 1, a rear board 2, a driving frame 4, an extension frame 5, a handwriting board 6, a bracket 8, universal wheels 9, a push plate 10, a transmission shaft 11, a dust exhaust device 12, a worm 14, a motor 15 and a rear protective shell 17; the lower side of the front surface of the rear plate 2 is connected with a lower frame 3 through welding; the display board 1 is fixedly connected in front of the lower frame 3 and the upper frame 202 of the back board 2; the active frame 4 is movably connected above the lower frame 3; the lower part of the extending frame 5 is meshed and connected with a clamping wheel 401 on the driving frame 4 through a self-contained rack; the back of the handwriting board 6 is fixedly connected to the front surface of the extending frame 5 through bolts; the bracket 8 is connected to the rear surface of the rear plate 2 by screws; the universal wheels 9 are respectively connected to four corners of the bottom surface of the bracket 8 through bolts; the lower end of the push plate 10 is connected to the upper surface of the active frame 4 by welding, and the upper end of the push plate 10 is movably connected below the upper frame 202 of the rear plate 2; the shaft of the transmission shaft 11 is rotatably connected in the middle of the rear plate 2 through a bearing, and the driving wheel 1102 of the transmission shaft 11 is meshed and connected with the push rods 1002 of the two push plates 10; the dust exhaust device 12 is rotatably connected to the frame body of the air vent 201 of the rear plate 2, and the shaft of the dust exhaust device 12 is connected to the driving pulley 1101 of the transmission shaft 11 through a synchronous belt; the rear protective shell 17 is fixedly connected to the rear surface of the rear plate 2, wraps the transmission part of the worm wheel 1103 and the worm 14 and plays a role in safety protection; the motor 15 is fixedly connected above the rear protective shell 17, and an output shaft of the motor 15 is fixedly connected with the transmission 7; the upper end of the worm 14 is connected with the output end of the speed changer 7, and the worm 14 is rotatably connected on the rear surface of the rear plate 2 through a bearing; the worm 14 engages a worm gear 1103 attached to the drive shaft 11.

Wherein, two vents 201 are arranged above the surface of the back plate 2, an upper frame 202 is fixedly connected above the front surface of the back plate 2, and a rectangular groove is arranged on the lower surface of the upper frame 202, the back plate 2 with the structure is shown in fig. 5, the rectangular groove on the upper frame 202 of the back plate 2 can be matched with the roller above the extending frame 5 to act, so as to reduce the friction force of the extending frame 5 during extending or retracting, so that the extending frame 5 is not easy to separate from the back plate 2, and can also be matched with the roller above the push plate 10 to act, and the friction force and the noise are also reduced.

Wherein, a spout has been seted up in the middle of the upper surface of lower frame 3, a lower rack 301 has been seted up in the spout, the lower frame 3 of this structure is as shown in fig. 1, lower frame 3 fixed connection is at the front surface of back plate 2, the rack structure can cooperate the action of initiative frame 4, when initiative frame 4 moved on lower frame 3, make and press from both sides wheel 401 and rotate, the cross-section of initiative frame 4 is H shape structure, the centre of initiative frame 4 is connected with two places through the bearing rotation and is pressed from both sides wheel 401, the wheel 401 that presss from both sides of this structure is as shown in fig. 6.

The upper frame of the extending frame 5 is rotatably connected with a roller 501, the lower surface of the lower extending frame 502 is provided with a rack structure, the extending frame 5 with the structure is shown in fig. 6, when the clamping wheels 401 rotate and move, the extending frame 5 can be driven to further move above the clamping wheels 401, the extending frame 5 is pushed out, the extending frames 5 on two sides simultaneously extend outwards, the handwriting board 6 is pushed out of the rear part of the display board 1, and the handwriting board 6 can be used for explaining the Chinese vocabulary content.

Wherein, the upper part of the push plate 10 is fixedly connected with an upper slide block 1001, the upper part of the upper slide block 1001 is rotatably connected with a roller two 10011, the inner side of the push plate 10 is fixedly connected with a push rod 1002, and the push plate 10 is provided with a convex groove 1003, the push plate 10 with the structure is shown in fig. 9, the push plate 10 is divided into two parts and is arranged at two sides of the transmission shaft 11, the transmission shaft 11 is provided with a driving pulley 1101 through a ratchet structure, the driving wheel 1102 is fixedly connected at the front end of the shaft of the transmission shaft 11, the rear end of the shaft of the transmission shaft 11 is fixedly connected with a worm wheel 1103, the transmission shaft 11 is driven by the motor 15 and the speed changer 7, the transmission shaft 11 rotates to enable the driving wheel 1102 to be matched with the push rod 1002 to form rack and pinion transmission, the push plate 10 at two sides is driven to expand towards two sides or contract towards the middle, the transmission shaft 11 is driven by the worm wheel, the worm wheel is utilized, the worm 14 drives the worm wheel 1103, and the worm wheel 1103 can not move reversely, which is convenient for control.

Wherein, the dust exhaust device 12 comprises an upper dust exhaust fan 1201 and a lower exhaust fan 1202, the upper dust exhaust fan 1201 is connected with the shaft of the lower exhaust fan 1202 through a synchronous belt, the dust exhaust device 12 is shown in fig. 8, the transmission shaft 11 is connected with a driving pulley 1101 through a ratchet wheel, the transmission shaft 11 can only drive the driving pulley 1101 in one direction, the driving pulley 1101 is connected with the dust exhaust device 12 above through the synchronous belt, it can be seen that, in the process of unfolding the writing board 6, the transmission shaft 11 rotates and the driving pulley 1101 is not moved under the ratchet wheel action, the dust exhaust device 12 is not moved, when the writing board 6 is controlled to be retracted, the transmission shaft 11 rotates and drives the driving pulley 1101 to rotate under the ratchet wheel action, the dust exhaust device 12 is controlled to rotate through the transmission belt, the two fans are synchronously acted, the outside air is sucked into the display board 1, the air is exhausted from the two sides of the display board 1, the chalk dust deposited on the writing board 6 is blown out from the sides, the condition that chalk dust is accumulated on an internal transmission system to cause blockage is avoided.

When in use: firstly, the display board 1 can be a display screen connected with a computer or a screen of a projector and other equipment, which is convenient for multimedia display, when in use, the equipment is used for displaying Chinese vocabulary, when needing handwriting auxiliary explanation, the action of the transmission shaft 11 can be controlled by the action of the remote control motor 15 and the speed changer 7, the transmission shaft 11 is matched with the push rod 1002 to form rack and pinion transmission, the push plates 10 at two sides are driven to expand towards two sides or contract towards the middle, the transmission shaft 11 is driven by the worm gear, the worm gear transmission has the characteristic of self-locking, the worm 14 drives the worm wheel 1103, the worm wheel 1103 can not move reversely, which is convenient for control, the push plate 10 pushes the driving frame 4, meanwhile, the two clamping wheels 401 and racks on the lower frame 3 are in rack and pinion transmission, the racks drive the clamping wheels 401 to rotate, meanwhile, the clamping wheels 401 and the driving frame 4 move outwards, and the clamping wheels 401 are matched with the extending frame 5 above, the lower surface rack of the lower extending frame 502 is engaged with the clamping wheel 401, the clamping wheel 401 rotates to drive the extending frame 5 to move, so that the extending frame 5 extends outwards, the writing board 6 is pushed out of the back of the display board 1, the Chinese vocabulary content can be explained by using the writing board 6, in the process of extending the writing board 6, under the action of the ratchet wheel, the transmission shaft 11 rotates, the driving belt wheel 1101 is fixed, the dust exhaust device 12 is fixed, when the writing board 6 is controlled to withdraw, under the action of the ratchet wheel, the transmission shaft 11 rotates to drive the driving belt wheel 1101 to rotate, the dust exhaust device 12 is controlled to rotate through the transmission belt, the two fans synchronously act to suck the outside air into the display board, so that the air is exhausted from the two sides of the display board 1, the chalk dust deposited on the writing board 6 is blown out from the side surface, the condition that the chalk dust is accumulated on the transmission system in the display board to cause blockage can be avoided, and the multimedia display frame for Chinese display can be seen that the multimedia display frame is simple and convenient to control, the handwriting board 6 is rapid in expansion or contraction, reliable in positioning, capable of discharging dust and capable of reducing the probability of blockage of an internal transmission structure.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a chinese language and literature vocabulary divides show shelf which characterized in that: the multifunctional display board comprises a display board (1), a rear board (2), a driving frame (4), an extending frame (5), a handwriting board (6), a support (8), universal wheels (9), a push plate (10), a transmission shaft (11), a dust exhaust device (12), a worm (14), a motor (15) and a rear protective shell (17); a lower frame (3) is connected below the front surface of the rear plate (2) through welding; the display board (1) is fixedly connected in front of the lower frame (3) and the upper frame (202) of the rear board (2); the active frame (4) is movably connected above the lower frame (3); the lower part of the extending frame (5) is meshed and connected with a clamping wheel (401) on the driving frame (4) through a self-contained rack; the back surface of the handwriting board (6) is fixedly connected to the front surface of the extending frame (5) through bolts; the bracket (8) is connected to the rear surface of the rear plate (2) through a screw; the universal wheels (9) are respectively connected to four corners of the bottom surface of the support (8) through bolts in four parts; the lower end of the push plate (10) is connected to the upper surface of the active frame (4) through welding, and the upper end of the push plate (10) is movably connected below an upper frame (202) of the rear plate (2); the transmission shaft (11) is rotatably connected in the middle of the rear plate (2) through a bearing, and a driving wheel (1102) of the transmission shaft (11) is meshed and connected with push rods (1002) of the two push plates (10); the dust exhaust device (12) is rotatably connected to a frame body of a ventilation opening (201) of the rear plate (2), and a shaft of the dust exhaust device (12) is connected to a driving belt wheel (1101) of the transmission shaft (11) through a synchronous belt; the rear protective shell (17) is fixedly connected to the rear surface of the rear plate (2); the motor (15) is fixedly connected above the rear protective shell (17), and an output shaft of the motor (15) is fixedly connected with the transmission (7); the upper end of the worm (14) is connected with the output end of the speed changer (7), and the worm (14) is rotatably connected to the rear surface of the rear plate (2) through a bearing; the worm (14) is meshed with a worm wheel (1103) connected to the transmission shaft (11).

2. The chinese language and literature vocabulary division display stand of claim 1, wherein: two ventilation openings (201) are formed in the upper portion of the rear plate (2), the upper frame (202) is fixedly connected to the upper portion of the front surface of the rear plate (2), and a rectangular groove is formed in the lower surface of the upper frame (202).

3. The chinese language and literature vocabulary division display stand of claim 1, wherein: a sliding groove is formed in the middle of the upper surface of the lower frame (3), and a lower rack (301) is arranged in the sliding groove.

4. The chinese language and literature vocabulary division display stand of claim 1, wherein: the section of the active frame (4) is of an H-shaped structure, and the clamping wheel (401) is rotatably connected to the middle of the active frame (4) through a bearing.

5. The chinese language and literature vocabulary division display stand of claim 1, wherein: a first roller (501) is rotatably connected to the upper frame of the extending frame (5), the lower frame of the frame body of the display frame (5) is a lower extending frame (502), and the rack is arranged on the lower surface of the lower extending frame (502).

6. The chinese language and literature vocabulary division display stand of claim 1, wherein: the upper side of the push plate (10) is fixedly connected with an upper slide block (1001), the upper side of the upper slide block (1001) is rotatably connected with a second roller (10011), the push rod (1002) is fixedly connected to the inner side of the push plate (10), and the push plate (10) is provided with a convex groove (1003).

7. The chinese language and literature vocabulary division display stand of claim 1, wherein: the driving belt wheel (1101) is installed on the transmission shaft (11) through a ratchet structure, the driving wheel (1102) is fixedly connected to the front end of the transmission shaft (11), and the worm wheel (1103) is fixedly connected to the rear end of the transmission shaft (11).

8. The chinese language and literature vocabulary division display stand of claim 1, wherein: the dust exhaust device (12) comprises an upper dust exhaust fan (1201) and a lower exhaust fan (1202), and shafts of the upper dust exhaust fan (1201) and the lower exhaust fan (1202) are connected through a synchronous belt.