CN217671908U

CN217671908U - Electric independent lifting blackboard

Info

Publication number: CN217671908U
Application number: CN202221472113.8U
Authority: CN
Inventors: 唐鹏; 安娜
Original assignee: BEIJING TALENT STATIONERY CO LTD
Current assignee: BEIJING TALENT STATIONERY CO LTD
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-10-28
Anticipated expiration: 2032-06-13

Abstract

The utility model relates to an electric independent lifting blackboard, which comprises a fixed frame, a movable frame and a blackboard body, wherein the blackboard body is fixed on one side of the movable frame, a vertically arranged track is arranged on the fixed frame, and the track is arranged at the inner side of a first edge beam which is vertically arranged on two sides of the fixed frame; the movable frame is provided with rollers which are arranged on the outer sides of second boundary beams which are vertically arranged on two sides of the movable frame; the roller is arranged in the track in a rolling manner and can move up and down along the track; and the fixed frame is also provided with a driving mechanism, and the driving mechanism is in transmission connection with the movable frame through a screw nut transmission mechanism and drives the movable frame to move up and down along the track. The utility model drives the movable frame to move up and down along the fixed frame through the roller through the driving mechanism and the lead screw nut transmission mechanism, so as to drive the blackboard body to move up and down, and the whole driving process is stable and reliable; the rollers are arranged on the outer sides of the second side beams on the two sides of the movable frame, so that the movable frame can stably move up and down relative to the fixed frame.

Description

Electric independent lifting blackboard

Technical Field

The utility model relates to a teaching aid technical field, concretely relates to electronic independent lift blackboard.

Background

The independently lifting blackboard is an independent blackboard and can move up and down after being installed so as to take care of the visual angles of observers at different distances. The existing blackboard capable of being lifted independently is provided with a counter weight which is equivalent to the weight of the blackboard at the rear part of the blackboard, the blackboard and the counter weight are connected by a steel wire or a chain, so that labor is saved when the blackboard is pushed and pulled, the blackboard can be stopped at any position, the problems of complex installation and inconvenient operation exist, manual pushing or pulling is needed, and the counter weight is easy to block.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve one kind or several kinds that prior art has technical problem, provide an electronic independent lift blackboard.

The utility model provides an above-mentioned technical problem's technical scheme as follows: an electric independent lifting blackboard comprises a fixed frame, a movable frame and a blackboard body, wherein the blackboard body is fixed on one side of the movable frame, a vertically arranged rail is arranged on the fixed frame, and the rail is arranged on the inner side of a first edge beam which is vertically arranged on two sides of the fixed frame; the movable frame is provided with rollers which are arranged outside second boundary beams which are vertically arranged at two sides of the movable frame; the roller is arranged in the track in a rolling manner and can move up and down along the track; and the fixed frame is also provided with a driving mechanism, and the driving mechanism is in transmission connection with the movable frame through a lead screw nut transmission mechanism and drives the movable frame to move up and down along the track.

The beneficial effects of the utility model are that: the utility model discloses a set up fixed frame and removal frame to fix the blackboard body on removing the frame, pass through actuating mechanism and screw-nut drive mechanism drive remove the frame through the gyro wheel along fixed frame up-and-down motion, and then drive blackboard body up-and-down motion, whole drive process is reliable and stable, sets up the track in the first boundary beam inboard of fixed frame, can hide the track; the rollers are arranged on the outer sides of the second edge beams on the two sides of the movable frame, so that the movable frame can stably move up and down relative to the fixed frame.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the driving mechanism comprises a motor, and the output end of the motor is directly connected with the lead screw nut transmission mechanism, or the motor is connected with the lead screw nut transmission mechanism through a worm and gear mechanism.

The beneficial effect of adopting the above further scheme is: the output shaft of the motor can be vertically arranged upwards and directly connected with the screw nut transmission mechanism for driving, and the output shaft of the motor can also be transversely arranged and connected with the screw nut transmission mechanism through the worm and gear mechanism for driving.

Further, the screw and nut transmission mechanism comprises a screw and a nut, and the nut is fixed on the movable frame; two ends of the screw rod are respectively connected with the fixed frame in a rotating way; the movable frame is provided with a through hole for a lead screw to pass through, the nut is coaxially arranged with the through hole, the lead screw passes through the through hole and the nut and is in threaded connection with the nut, and the output end of the driving mechanism is in transmission connection with the lead screw.

The beneficial effect of adopting the further scheme is that: through setting up the through-hole, make things convenient for the lead screw to pass the through-hole and move the frame motion through nut drive.

Furthermore, the movable frame is of a square frame structure, the through holes are formed in the middle position of the upper cross beam and the middle position of the lower cross beam of the movable frame respectively, and nuts are arranged on the inner side of the upper cross beam.

The beneficial effect of adopting the further scheme is that: through set up the through-hole in the intermediate position of entablature and bottom end rail, be favorable to the drive to remove frame steady motion from top to bottom.

Furthermore, an installation beam is arranged on the inner side of a bottom beam of the fixed frame, an assembly interval for assembling a driving mechanism is formed between the installation beam and the bottom beam, and the driving mechanism is installed in the assembly interval; the lower end of a lead screw of the lead screw nut transmission mechanism is rotatably arranged on the mounting cross beam, and the upper end of the lead screw nut transmission mechanism is rotatably arranged on the top cross beam of the fixed frame.

The beneficial effect of adopting the further scheme is that: through setting up the installation crossbeam, can hide the installation to actuating mechanism.

Further, the mounting cross beam is of an inverted U-shaped structure.

The beneficial effect of adopting the above further scheme is: and the installation beam adopting the inverted U-shaped structure is convenient to assemble.

Furthermore, at least one set of idler wheels is arranged on each second edge beam of the movable frame respectively, each set of idler wheels comprises two idler wheels which are arranged in a vertically staggered mode, one idler wheel of each set of idler wheel is arranged in one guide rail groove of the corresponding track, and the other idler wheel of each set of idler wheel is arranged in the other guide rail groove of the corresponding track.

The beneficial effect of adopting the above further scheme is: through setting up the gyro wheel of dislocation arrangement from top to bottom, can make a set of two gyro wheels and stable effective contact in orbital guide rail groove in place.

Furthermore, two groups of rollers are respectively arranged on each second boundary beam of the movable frame, one group of rollers is arranged at the position, close to the upper end, of the second boundary beam, and the other group of rollers is arranged at the position, close to the lower end, of the second boundary beam.

The beneficial effect of adopting the above further scheme is: through setting up two sets of gyro wheels, make the stable assembly of removal frame in fixed frame.

Further, the fixed frame is of a square frame structure, and the middle position of the back face of the blackboard body is fixed on the movable frame.

The beneficial effect of adopting the further scheme is that: the fixed frame adopting the square frame structure is beneficial to the stable assembly of the movable frame and the blackboard body.

Further, week side edge on the blackboard body is provided with control switch, the bottom crossbeam inboard and the top crossbeam inboard of fixed frame all are equipped with position sensor, position sensor and actuating mechanism all with control switch connects.

The beneficial effect of adopting the further scheme is that: by arranging the position sensor, when the moving frame moves to the position of the top cross beam along the track, the driving mechanism can be controlled to stop driving through the position sensor on the inner side of the top cross beam; when the movable frame moves to the position of the bottom cross beam along the track, the driving mechanism can be controlled to stop driving through the position sensor on the inner side of the bottom cross beam; the driving mechanism can be controlled by the control switch to stop the movement of the moving frame at any position.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of the fixed frame and the movable frame of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic view of a three-dimensional structure of the fixed frame and the movable frame of the present invention;

FIG. 4 is a schematic view of the three-dimensional structure of the fixed frame, the movable frame and the blackboard body of the present invention;

FIG. 5 is a schematic structural view showing a state of the electric blackboard of the present invention;

fig. 6 is a schematic structural view of the electric independent lifting blackboard in another state.

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

1. fixing the frame; 11. a first edge beam; 12. a track; 13. a top cross beam; 14. a bottom cross member; 15. mounting a cross beam; 16. a guide rail groove;

2. moving the frame; 21. an upper cross beam; 22. a lower cross beam; 23. a roller; 24. a through hole; 25. a second edge beam;

3. a blackboard body; 4. a lead screw; 41. a nut; 5. a motor; 51. a worm gear mechanism.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1 to 6, the electric independent lifting blackboard of the present embodiment includes a fixed frame 1, a movable frame 2 and a blackboard body 3, wherein the blackboard body 3 is fixed on one side of the movable frame 2, a vertically arranged rail 12 is arranged on the fixed frame 1, and the rail 12 is arranged inside a first side beam 11 vertically arranged on two sides of the fixed frame 1; the movable frame 2 is provided with rollers 23, and the rollers 23 are arranged on the outer sides of second edge beams 25 which are vertically arranged on two sides of the movable frame 2; the roller 23 is arranged in the track 12 in a rolling manner and can move up and down along the track 12; the fixed frame 1 is also provided with a driving mechanism, and the driving mechanism is in transmission connection with the movable frame 2 through a screw nut transmission mechanism and drives the movable frame 2 to move up and down along the track 12.

In this embodiment, the blackboard body 3 may be directly fixed to one side of the movable frame 2 by a connecting member such as a bolt, or may be fixed to one side of the movable frame 2 by a bracket.

As shown in fig. 3 to fig. 6, the driving mechanism of this embodiment includes a motor 5, and an output end of the motor 5 is directly connected to the lead screw nut transmission mechanism, or the motor 5 is connected to the lead screw nut transmission mechanism through a worm and gear mechanism. The output shaft of the motor can be vertically arranged upwards and directly connected with the screw nut transmission mechanism for driving, and the output shaft of the motor can also be transversely arranged and connected with the screw nut transmission mechanism through the worm and gear mechanism for driving.

As shown in fig. 3 to 6, the screw-nut transmission mechanism of the present embodiment includes a screw 4 and a nut 41, and the nut 41 is fixed on the movable frame 2; two ends of the lead screw 4 are respectively connected with the fixed frame 1 in a rotating way; the movable frame 2 is provided with a through hole 24 for a lead screw 4 to pass through, the nut 41 is coaxially arranged with the through hole 24, the lead screw 4 passes through the through hole 24 and the nut 41 and is in threaded connection with the nut 41, and the output end of the driving mechanism is in transmission connection with the lead screw 4. Through setting up the through-hole, make things convenient for the lead screw to pass the through-hole and remove the frame motion through nut drive.

Specifically, two ends of the screw rod 4 can be respectively connected with the fixed frame 1 through bearings in a rotating manner.

As shown in fig. 1 to 6, the moving frame 2 of the present embodiment is a square frame structure, the through holes 24 are respectively opened at the middle position of the upper beam 21 and the middle position of the lower beam 22 of the moving frame 2, and the nuts 41 are provided on the inner side of the upper beam 21. Through set up the through-hole in the intermediate position of entablature and bottom end rail, be favorable to the drive to remove frame steady motion from top to bottom.

As shown in fig. 1 to 6, a mounting beam 15 is disposed inside a bottom beam 14 of the fixed frame 1 of the present embodiment, an assembly space for assembling a driving mechanism is formed between the mounting beam 15 and the bottom beam 14, and the driving mechanism is installed in the assembly space; the lower end of a lead screw 4 of the lead screw nut transmission mechanism is rotatably arranged on the mounting cross beam 15, and the upper end of the lead screw 4 of the lead screw nut transmission mechanism is rotatably arranged on a top cross beam 13 of the fixed frame 1. Through setting up the installation crossbeam, can hide the installation to actuating mechanism.

As shown in fig. 3 to 6, the mounting beam 15 of the present embodiment has an inverted U-shaped structure. The installation crossbeam that adopts the type of falling U structure, convenient assembly.

As shown in fig. 1 and fig. 2, each second edge beam 25 of the moving frame 2 of the present embodiment is provided with at least one set of rollers 23, each set of rollers 23 includes two rollers 23 arranged in a staggered manner, one roller 23 of each set of rollers 23 is disposed in one guide rail groove 16 of the corresponding rail 12, and the other roller 23 of each set of rollers 23 is disposed in the other guide rail groove 16 of the corresponding rail 12. Through setting up the gyro wheel of dislocation arrangement from top to bottom, can make a set of two gyro wheels and stable effective contact in orbital guide rail groove in place.

As shown in fig. 1 and fig. 2, two sets of rollers 23 are respectively disposed on each second edge beam 25 of the moving frame 2 according to the present embodiment, one set of rollers 23 is disposed at a position close to an upper end of the second edge beam 25, and the other set of rollers 23 is disposed at a position close to a lower end of the second edge beam 25. Through setting up two sets of gyro wheels, make the stable assembly of removal frame in fixed frame.

As shown in fig. 1 to 6, the fixed frame 1 of the present embodiment is a square frame structure, and the middle position of the back of the blackboard body 3 is fixed to the movable frame 2. The fixed frame of the square frame structure is adopted, so that the stable assembly of the movable frame and the blackboard body is facilitated.

A further scheme of this embodiment does, week side edge on the blackboard body 3 is provided with control switch, the bottom crossbeam 14 inboard and the top crossbeam 13 inboard of fixed frame 1 all are equipped with position sensor, position sensor and actuating mechanism all with control switch connects. By arranging the position sensor, when the moving frame moves to the position of the top cross beam along the track, the driving mechanism can be controlled to stop driving through the position sensor on the inner side of the top cross beam; when the movable frame moves to the position of the bottom cross beam along the track, the driving mechanism can be controlled to stop driving through the position sensor on the inner side of the bottom cross beam; the driving mechanism can be controlled by the control switch to stop the movement of the moving frame at any position.

When the electric independent lifting blackboard of the embodiment is used, one side of the fixed frame 1 deviating from the blackboard body 3 is fixed on a wall body through the expansion bolts, the worm and gear mechanism 51 is driven through the motor 5, the screw rod 4 is driven to rotate through the worm and gear mechanism 51, the nut on the movable frame 2 is driven by the screw rod 4 to move up and down along the track 12 on the fixed frame 1, and then the blackboard body 3 is driven to move up and down. As shown in fig. 5, the blackboard body 3 moves downward to the lowermost part of the fixed frame 1, and the moving frame 2, the fixed frame 1 and other driving mechanisms behind the blackboard body are hidden at the rear part of the blackboard body and are not exposed. As shown in fig. 6, the blackboard body 3 moves upward to the uppermost part of the fixed frame 1, and the moving frame 2, the fixed frame 1 and other driving mechanisms behind the blackboard body are also hidden at the rear part of the blackboard body and are not exposed.

The electric independent lifting blackboard of the embodiment is provided with the fixed frame and the movable frame, the blackboard body is fixed on the movable frame, the movable frame is driven to move up and down along the fixed frame through the roller through the driving mechanism and the lead screw nut transmission mechanism, so that the blackboard body is driven to move up and down, the whole driving process is stable and reliable, the rail is arranged on the inner side of the first edge beam of the fixed frame, and the rail can be hidden; the rollers are arranged on the outer sides of the second side beams on the two sides of the movable frame, so that the movable frame can stably move up and down relative to the fixed frame.

The electronic blackboard that independently goes up and down of this embodiment relies on motor drive to realize that blackboard body reciprocates to realize the auto-lock that blackboard body removed through worm gear mechanism transmission, after blackboard body removed a position promptly, can not down remove because of the gravity of blackboard by oneself. All the frames and mechanisms are hidden, and the frames and mechanisms at the back do not appear in the up-and-down moving process of the blackboard body. The blackboard body is driven by a motor to drive a screw rod to rotate, and the up-and-down movement is realized through a screw rod nut.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. An electric independent lifting blackboard is characterized by comprising a fixed frame, a movable frame and a blackboard body, wherein the blackboard body is fixed on one side of the movable frame, a vertically arranged rail is arranged on the fixed frame, and the rail is arranged on the inner side of a first side beam which is vertically arranged on two sides of the fixed frame; the movable frame is provided with rollers which are arranged on the outer sides of second edge beams which are vertically arranged on two sides of the movable frame; the roller is arranged in the track in a rolling manner and can move up and down along the track; and the fixed frame is also provided with a driving mechanism, and the driving mechanism is in transmission connection with the movable frame through a lead screw nut transmission mechanism and drives the movable frame to move up and down along the track.

2. An electric blackboard capable of lifting independently according to claim 1, wherein the driving mechanism includes a motor, the output end of the motor is directly connected to the screw nut transmission mechanism, or the motor is connected to the screw nut transmission mechanism through a worm and gear mechanism.

3. The electric blackboard capable of being lifted independently according to claim 1, wherein the lead screw and nut transmission mechanism includes a lead screw and a nut, and the nut is fixed on the movable frame; two ends of the screw rod are respectively connected with the fixed frame in a rotating way; the movable frame is provided with a through hole for a lead screw to pass through, the nut is coaxially arranged with the through hole, the lead screw passes through the through hole and the nut and is in threaded connection with the nut, and the output end of the driving mechanism is in transmission connection with the lead screw.

4. An electric blackboard capable of being lifted independently as claimed in claim 3, wherein the movable frame is a square frame structure, the through holes are respectively opened at the middle position of the upper beam and the middle position of the lower beam of the movable frame, and the inner side of the upper beam is provided with nuts.

5. An electric independently lifting blackboard according to claim 1, wherein a mounting beam is arranged on the inner side of the bottom beam of the fixed frame, an assembly space for assembling a driving mechanism is formed between the mounting beam and the bottom beam, and the driving mechanism is installed in the assembly space; the lower end of a lead screw of the lead screw nut transmission mechanism is rotatably arranged on the mounting cross beam, and the upper end of the lead screw nut transmission mechanism is rotatably arranged on the top cross beam of the fixed frame.

6. An electrically driven blackboard capable of being lifted independently according to claim 5, wherein the mounting beam is of an inverted U-shaped structure.

7. An electric blackboard capable of being lifted independently according to claim 1, wherein each second edge beam of the movable frame is provided with at least one set of rollers, each set of rollers includes two rollers arranged in a vertically staggered manner, one roller of each set of rollers is disposed in one guide rail groove of the corresponding track, and the other roller of each set of rollers is disposed in the other guide rail groove of the corresponding track.

8. An electric blackboard capable of being lifted independently as claimed in claim 1, wherein each of the second side beams of the movable frame has two sets of rollers, one set of rollers is disposed at a position near the upper end of the second side beam, and the other set of rollers is disposed at a position near the lower end of the second side beam.

9. The blackboard capable of being lifted independently driven by an electric motor as claimed in claim 1, wherein the fixed frame is a square frame structure, and the middle position of the back of the blackboard body is fixed on the movable frame.

10. An electric blackboard capable of lifting independently according to claim 1, wherein the blackboard body is provided with a control switch at the edge of the periphery, the fixed frame is provided with a position sensor at the inner side of the bottom beam and a position sensor at the inner side of the top beam, and the position sensors and the driving mechanism are connected with the control switch.