CN210132917U

CN210132917U - Electric lifting blackboard

Info

Publication number: CN210132917U
Application number: CN201920976507.9U
Authority: CN
Inventors: 何玉良
Original assignee: SHIJIAZHUANG KEDA STATIONERY CO Ltd
Current assignee: SHIJIAZHUANG KEDA STATIONERY CO Ltd
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-03-10
Anticipated expiration: 2029-06-26

Abstract

The utility model provides an electric lifting blackboard, which comprises an outer frame, a transmission rope, a first sliding plate and a second sliding plate, wherein the outer frame is detachably arranged on the wall surface; one side surface of the outer frame is provided with a rotating wheel; the rotating wheel is connected with a power assembly for driving the rotating wheel to rotate vertically; the first sliding plate is embedded in the outer frame and is connected with the outer frame in a sliding way; the second sliding plate is embedded in the outer frame and is connected with the outer frame in a sliding way; the second sliding plate is parallel to the first sliding plate and is positioned on different planes; the transmission rope is hung on the rotating wheel, one end of the transmission rope is connected with the side face of the first sliding plate, and the other end of the transmission rope is connected with the side face of the second sliding plate. The utility model provides an electric lift blackboard, blackboard face can be automatic realization change, change process convenient and fast does not need manual formula's change, has avoided the damage that the people caused to the blackboard for the operation.

Description

Electric lifting blackboard

Technical Field

The utility model belongs to the technical field of the teaching tool, more specifically say, relate to an electric lift blackboard.

Background

The blackboard is used as a teaching tool and is widely applied to teaching processes. At present, more popular blackboard is many blocks formula lift blackboard, many blocks formula lift blackboard is constituteed through polylith blackboard concatenation together, in the use, need the change that the blackboard panel was realized to manual promotion blackboard panel, there is the inconvenient problem of change between the blackboard panel, still can be owing to the difference of artificial thrust size and direction at the in-process of push-and-pull simultaneously, make blackboard panel remove the in-process can take place the striking with the frame, influence the normal slip of blackboard panel, serious still can cause the damage to blackboard panel, influence the normal use of blackboard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric lift blackboard aims at solving for promoting the blackboard panel and realizes when changing blackboard panel, and it is inconvenient to have to change between the blackboard panel, changes the problem of inefficiency.

In order to achieve the above object, the utility model adopts the following technical scheme: the electric lifting blackboard comprises an outer frame, a first lifting device and a second lifting device, wherein the outer frame is detachably arranged on a wall surface; one side surface of the outer frame is provided with a rotating wheel; the rotating wheel is connected with a power assembly for driving the rotating wheel to vertically rotate;

the first sliding plate is embedded in the outer frame and is connected with the outer frame in a sliding manner;

the second sliding plate is embedded in the outer frame and is connected with the outer frame in a sliding way; the second sliding plate is parallel to the first sliding plate and is positioned on a different plane;

and the transmission rope is hung on the rotating wheel, one end of the transmission rope is connected with the side surface of the first sliding plate, and the other end of the transmission rope is connected with the side surface of the second sliding plate.

Furthermore, the outer frame is a rectangular frame, a first limiting groove used for being clamped with the first sliding plate and a second limiting groove used for being clamped with the second sliding plate in a limiting mode are arranged on the inner side of the outer frame, and a limiting plate is arranged between the first limiting groove and the second limiting groove.

Furthermore, the two vertical sides of the first sliding plate are respectively detachably connected with a first fixing plate, and the first fixing plate is connected with a first roller which is embedded into the first limiting groove and rolls in the first limiting groove; one end of the transmission rope is connected with one of the first fixing plates;

the vertical two sides of the second sliding plate are respectively detachably connected with a second fixing plate, and the second fixing plate is connected with a second roller which is embedded into the second limiting groove and rolls in the second limiting groove; the other end of the transmission rope is connected with one of the second fixing plates.

Furthermore, the bottom ends of the first sliding plate and the second sliding plate are respectively provided with a buffer plate used for being abutted against the outer frame.

Further, the first sliding plate and the second sliding plate are green plates or infrared light-sensitive plates.

Further, the rotating wheel is a chain wheel, and the transmission rope is a chain.

Furthermore, the rotating wheel is sleeved on a mandrel inserted on the outer frame.

Furthermore, the power assembly comprises an adjustable speed motor arranged on the outer frame or the wall surface, and a coupler connected with an output shaft of the adjustable speed motor and the core shaft.

Furthermore, a Hall element for adjusting the position and the rotating speed of the rotor of the speed regulating motor is arranged on the speed regulating motor.

The utility model provides an electric lift blackboard's beneficial effect lies in: compared with the prior art, the utility model discloses electric lift blackboard, the power component drive runner that is equipped with rotates, the relative position of driving rope both ends on the frame changes along with the rotation of runner, first sliding plate and second sliding plate are corresponding shifts up or move down along the frame respectively, first sliding plate obtains the adjustment respectively with the position of second sliding plate on the frame, through power component, the cooperation of runner and driving rope, make the change process convenient and fast of first sliding plate and second sliding plate, and the change in-process does not need artificial promotion, effectively avoided the human factor to cause the damage to the blackboard.

The form of adopting unilateral drive, the runner only sets up the upper end in frame one side and is connected with first sliding plate and second sliding plate respectively through a driving rope, need not set up the synchronizing shaft at the lower extreme of this side of frame, has simplified the installation of this electric lift blackboard, the effectual operating efficiency who improves the installation.

Drawings

Fig. 1 is a schematic view of the overall structure of an electric lifting blackboard provided in the embodiment of the present invention;

fig. 2 is an exploded view of a driving assembly used in an embodiment of the present invention;

fig. 3 is a schematic cross-sectional structural view of a driving assembly adopted in the embodiment of the present invention;

FIG. 4 is a schematic view of the connection structure of the driving rope with the first sliding plate and the second sliding plate according to the embodiment of the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 4;

FIG. 6 is an enlarged view of the structure at B in FIG. 4;

fig. 7 is a schematic diagram of a frame structure adopted in the embodiment of the present invention;

in the figure: 1. an outer frame; 11. a limiting plate; 12. a first limit groove; 13. a second limit groove; 2. a power assembly; 21. a mandrel; 22. a rotating wheel; 23. a speed-regulating motor; 231. a motor bracket; 24. a coupling; 25. a pedestal bearing; 3. a drive rope; 4. a first sliding plate; 5. a second sliding plate; 6. a first fixing plate; 7. a first roller; 8. a buffer plate; 9. a second fixing plate; 10. a second roller.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 7, the electric blackboard of the present invention will be described. The electric lifting blackboard comprises an outer frame 1, a transmission rope 3, a first sliding plate 4 and a second sliding plate 5, wherein the outer frame 1 is detachably mounted on a wall surface, one side surface of the outer frame 1 is provided with a rotating wheel 22, and the rotating wheel 22 is connected with a power assembly 2 for driving the rotating wheel 22 to vertically rotate; the first sliding plate 4 is embedded in the outer frame 1 and is connected with the outer frame 1 in a sliding way; the second sliding plate 5 is embedded in the outer frame 1 and is connected with the outer frame 1 in a sliding way; the second sliding plate 5 is parallel to the first sliding plate 4 and is positioned on a different plane; the transmission rope 3 is hung on the rotating wheel 22, one end of the transmission rope is connected with the side surface of the first sliding plate 4, and the other end of the transmission rope is connected with the side surface of the second sliding plate 5.

When the electric lifting blackboard is used, the first sliding plate 4 and the second sliding plate 5 are distributed in a high-low state, when the first sliding plate 4 is arranged below the second sliding plate 5, a lecturer can write on the first sliding plate 4, when the surface of the first sliding plate 4 is full, and when the second sliding plate 5 needs to write, the lecturer can control the rotating wheel 22 to rotate through the power assembly 2, the relative positions of the two ends of the transmission rope 3 on the outer frame 1 are adjusted, so that the end, connected with the first sliding plate 4, of the transmission rope 3 is lifted, the end, connected with the second sliding plate 5, of the transmission rope 3 is lowered, and further the position exchange of the first sliding plate 4 and the second sliding plate 5 is realized.

The utility model provides an electric lift blackboard, compared with the prior art, the 2 drive runners 22 of power component who is equipped with rotate, the relative position of transmission rope 3 both ends on frame 1 changes along with runner 22's rotation, first sliding plate 4 and second sliding plate 5 are corresponding moves up or move down along frame 1 respectively, first sliding plate 4 obtains the adjustment respectively with second sliding plate 5 position on frame 1, through power component 2, runner 22 and transmission rope 3's cooperation, make the change process convenient and fast of first sliding plate 4 and second sliding plate 5, and the change in-process does not need artificial promotion, effectively avoided the human factor to cause the damage to the blackboard.

The single-side driving mode is adopted, the rotating wheel 22 is only arranged at the upper end of one side of the outer frame 1 and is respectively connected with the first sliding plate 4 and the second sliding plate 5 through the transmission rope 3, a synchronizing shaft is not required to be arranged at the lower end of the side of the outer frame 1, the installation process of the electric lifting blackboard is simplified, and the operation efficiency of installation operation is effectively improved.

The pulley 22 is a sprocket, and the drive rope 3 is a chain. The length of a single chain plate in the chain is constant, and the chain is meshed with the chain wheel to rotate, so that the positions of the first sliding plate 4 and the second sliding plate 5 can be adjusted more accurately by the teaching staff, and the controllable degree is higher.

The rotating wheel 22 is sleeved on the mandrel 21 inserted on the outer frame 1. It should be noted that the mandrel 21 and the rotating wheel 22 are detachably connected or integrally formed, and the mandrel 21 can be detachably connected with the rotating wheel 22 through a snap spring, so that the rotating wheel 22 and the power assembly 2 can be conveniently replaced by an operator; when the mandrel 21 and the rotating wheel 22 are integrally formed, the number of parts is effectively reduced, the installation time is saved, and the system operation of the power assembly 2 is more stable.

The power assembly 2 comprises an adjustable speed motor 23 arranged on the outer frame 1 or used for being installed on a wall surface, and a coupling 24 connected with an output shaft of the adjustable speed motor 23 and the mandrel 21. The speed regulating motor 23 and the mandrel 21 are detachably connected through the coupler 24, and therefore the power assembly 2 is convenient to overhaul or install by operators.

It should be noted that, a motor support 231 is fixed on one side of the adjustable speed motor 23, the adjustable speed motor 23 is fixedly connected with the outer frame 1 through the motor support 231, the motor support 231 is connected with the outer frame 1 through a threaded structure, and the motor support 231 is arranged so that the adjustable speed motor 23 is more stably connected with the outer frame 1, and the adjustable speed motor 23 is also conveniently detached from the outer frame 1.

The adjustable speed motor 23 is the commonly used adjustable speed motor in the prior art, the PLC system is integrated on the adjustable speed motor 23, at least one function module is arranged on the PLC system, the function module comprises a signal receiving module, a control module and a memory storage module, the signal receiving module is electrically connected with an external remote controller, the signal receiving module receives signals transmitted by the remote controller and then is analyzed and processed by the PLC system, the signals are transmitted to the control module, and the control module controls the adjustable speed motor 23 to generate corresponding regulation to change the rotating speed of the adjustable speed motor 23.

In this embodiment, the adjustable speed motor 23 is provided with a hall element for adjusting the position and the rotation speed of the rotor of the adjustable speed motor 23, the hall element is a hall sensor commonly used in the prior art, and the hall sensor can change the current direction at a certain position based on the hall effect to enable the coil to generate opposite magnetic poles. The Hall sensor can detect the position of the rotating magnetic field of the rotor of the speed regulating motor 23 and transmits an electric signal to the PLC system through a logic and driving circuit. When the magnetic field changes, the hall sensor sends the signal of telecommunication of transmission to the PLC system to through the rotational speed size of PLC system control buncher 23, make first sliding plate 4 or second sliding plate 5 can automatic deceleration at the final stage of moving process, speed reducible to zero when first sliding plate 4 or second sliding plate 5 and frame 1 butt, avoided first sliding plate 4 or second sliding plate 5 and frame 1 to take place inertial impact.

The outer frame 1 is provided with at least one, when the outer frame 1 is one, this electric lift blackboard can make singly organize the blackboard and use, when the outer frame 1 is a plurality of, this electric lift blackboard can make the combination formula blackboard and use, in this embodiment, the outer frame 1 is two, and outer frame 1 can pass through threaded connection with the wall, also can laminate outer frame 1 on the wall through gluing agent.

The power assembly 2 further comprises a bearing 25 with a seat, the bearing 25 with the seat is fixedly connected with the outer frame 1, one end of the bearing is connected with the coupler 24, and the other end of the bearing is rotatably connected with the mandrel 21. In this embodiment, the seated bearing 25 is a diamond-seat bearing, and the seated bearing 25 is fixedly connected to the speed-adjusting motor 23 through the motor bracket 231. Specifically, an output shaft of the speed regulating motor 23 penetrates one end of a coupler 24, the coupler 24 is detachably connected with a bearing with a seat 25, and the other end of the coupler 24 is rotatably connected with the core shaft 21.

Referring to fig. 1 to 7, as a specific embodiment of the electric lifting blackboard according to the present invention, the outer frame 1 is a rectangular frame, the inner side of the outer frame 1 is provided with a first limit groove 12 for engaging with the first sliding plate 4 and a second limit groove 13 for engaging with the second sliding plate 5, and a limit plate 11 is disposed between the first limit groove 12 and the second limit groove 13. The first limiting groove 12 and the second limiting groove 13 limit the moving tracks of the first sliding plate 4 and the second sliding plate 5 respectively, and prevent the moving tracks of the first sliding plate 4 and the second sliding plate 5 from deviating.

Referring to fig. 1 to 6, as a specific embodiment of the electric lifting blackboard according to the present invention, the first fixing plate 6 is detachably connected to each of the two vertical sides of the first sliding plate 4, and the first fixing plate 6 is connected to a first roller 7 embedded in the first limiting groove 12 and rolling in the first limiting groove 12; one end of the transmission rope 3 is connected with one of the first fixing plates 6;

the vertical two sides of the second sliding plate 5 are respectively detachably connected with a second fixed plate 9, and the second fixed plate 9 is connected with a second roller 10 which is embedded into a second limiting groove 13 and rolls in the second limiting groove 13; the other end of the driving rope 3 is connected with one of the second fixing plates 9.

In this embodiment, the first fixing plate 6 and the first sliding plate 4, and the second fixing plate 9 and the second sliding plate 5 can be detachably connected by means of threaded connection, the first fixing plate 6 and the first sliding plate 4, and the second fixing plate 9 and the second sliding plate 5 can be detachably connected, which facilitates the replacement of the first sliding plate 4 or/and the second sliding plate 5 by an installer, and the first roller 7 and the second roller 10 provided at the same time reduce the static friction force to be overcome by the relative sliding between the first sliding plate 4 and the second sliding plate 5 with the outer frame 1, so that the sliding of the first fixing plate 6 and the second fixing plate 9 on the outer frame 1 is faster and more convenient.

Referring to fig. 1 and 4, as a specific embodiment of the electric lifting blackboard provided by the present invention, the bottom ends of the first sliding plate 4 and the second sliding plate 5 are respectively provided with a buffer plate 8 for abutting against the outer frame 1, the buffer plate 8 can play a role of buffering, so as to reduce the damage degree of the outer frame 1 to the first sliding plate 4 or the second sliding plate 5 when the first sliding plate 4 or the second sliding plate 5 abuts against the outer frame 1; 8 bottom surfaces of buffer board are laminated simultaneously and are fixed with one deck rubber buffer layer, be equipped with pressure sensor in the rubber buffer layer, pressure sensor is connected with buncher 23's PLC system electricity, 8 lower extremes of frame 1 and the rubber buffer layer of 8 bottom surfaces of buffer board are when frame 1 contacts when buffer board, the pressure that the contact produced can pass to the control module in the PLC system through pressure sensor, then transmit the result to control module through memory storage module, the operation of control module control buncher 23 stall, the position of first sliding plate 4 and second sliding plate 5 no longer changes. In this embodiment, buffer board 8 has certain radian for buffer board 8 has the function of accomodating, can place miniature teaching aid on buffer board 8, has made things convenient for taking of teaching personnel to teaching aid.

Referring to fig. 1 and 4, as an embodiment of the electric lifting blackboard of the present invention, the first sliding plate 4 and the second sliding plate 5 are green plates or infrared light sensing plates. When the sliding plate can be a common green plate, the eye fatigue is relieved, and the eyesight of students is protected.

When the sliding plate is an infrared light sensing plate, the existing infrared technology touch screen technology is integrated on the sliding plate. The sliding plate is laminated all around and is fixed with the infrared frame, and the infrared frame is connected with well accuse ware electricity, is equipped with a functional module in the well accuse ware at least, and functional module includes but not limited to clear away functional module, preserves functional module, switches functional module, turns over a page module, mark the module, well accuse ware is connected with external internet electricity simultaneously.

The infrared frame comprises four infrared strips which are connected end to form a rectangle, a plurality of infrared transmitting/receiving devices are arranged on each infrared strip at intervals, the infrared transmitting/receiving devices can detect the writing track of teaching staff on the first sliding plate 4 and transmit the writing information to the central controller through electric connection, the writing information can be repeatedly engraved on the second sliding plate 5 which is electrically connected with the central controller through electric connection after being analyzed by the central controller, and the function of displaying the contents of the blackboard-writing in real time is realized. When the sliding plate is an infrared light sensing plate, the writing can be performed without any consumable product, so that the phenomenon of dust flying is completely avoided, and the physical health of teachers and students is ensured.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Electric lift blackboard, its characterized in that includes:

the outer frame (1) is detachably mounted on a wall surface; one side surface of the outer frame (1) is provided with a rotating wheel (22); the rotating wheel (22) is connected with a power assembly (2) for driving the rotating wheel to rotate vertically;

the first sliding plate (4) is embedded in the outer frame (1) and is connected with the outer frame (1) in a sliding way;

the second sliding plate (5) is embedded in the outer frame (1) and is connected with the outer frame (1) in a sliding way; the second sliding plate (5) is parallel to the first sliding plate (4) and is positioned on a different plane;

and the transmission rope (3) is hung on the rotating wheel (22), one end of the transmission rope is connected with the side surface of the first sliding plate (4), and the other end of the transmission rope is connected with the side surface of the second sliding plate (5).

2. The electric lifting blackboard according to claim 1, wherein the outer frame (1) is a rectangular frame, a first limit groove (12) for clamping the first sliding plate (4) and a second limit groove (13) for clamping the second sliding plate (5) are arranged on the inner side of the outer frame (1), and a limit plate (11) is arranged between the first limit groove (12) and the second limit groove (13).

3. The electric lifting blackboard according to claim 2, wherein the first fixing plate (6) is detachably connected to each of the two vertical sides of the first sliding plate (4), and the first fixing plate (6) is connected to a first roller (7) which is embedded in the first limit groove (12) and rolls in the first limit groove (12); one end of the transmission rope (3) is connected with one of the first fixing plates (6);

the vertical two sides of the second sliding plate (5) are respectively detachably connected with a second fixing plate (9), and the second fixing plate (9) is connected with a second roller (10) which is embedded into the second limiting groove (13) and rolls in the second limiting groove (13); the other end of the transmission rope (3) is connected with one of the second fixing plates (9).

4. The electrically-operated vertically movable blackboard according to claim 1, wherein the bottom ends of the first sliding plate (4) and the second sliding plate (5) are respectively provided with a buffer plate (8) for abutting against the outer frame (1).

5. The electric lifting blackboard according to claim 1, wherein the first sliding plate (4) and the second sliding plate (5) are green plates or infrared light sensitive plates.

6. An electrically-driven lifting blackboard according to claim 1, characterised in that the rotating wheel (22) is a sprocket wheel and the transmission rope (3) is a chain.

7. An electric lifting blackboard according to claim 6, characterised in that the rotating wheel (22) is sleeved on a mandrel (21) inserted on the outer frame (1).

8. An electric lifting blackboard according to claim 7, characterised in that the power assembly (2) comprises a speed regulating motor (23) arranged on the outer frame (1) or used for being installed on the wall surface, and a coupling (24) connected with the output shaft of the speed regulating motor (23) and the spindle (21).

9. An electric lifting blackboard according to claim 8, characterised in that the speed regulating motor (23) is provided with a hall element for adjusting the position and the rotation speed of the rotor of the speed regulating motor (23).