CN215153420U - Combined blackboard structure for teaching in colleges and universities - Google Patents

Abstract

The utility model discloses a combination formula blackboard structure for colleges and universities' teaching, including main frame, the inside symmetry of main frame is equipped with two first blackboards and two second blackboards, slide rail sliding connection that two second blackboards opened some through the symmetry on the main frame respectively is in the inside of main frame, and the second blackboard is by motor drive, and the rear side of two second blackboards and the internally mounted who is located the main frame have the display screen that is used for showing teaching content, this device can be when the second blackboard is closed it can keep a plane with first blackboard, the display screen pops out one section distance from the inside of main frame when the second blackboard slides open, make the bandwagon effect of display screen better.

Description

Combined blackboard structure for teaching in colleges and universities

Technical Field

The utility model relates to a blackboard technical field specifically is a combination formula blackboard structure for colleges and universities' teaching.

Background

In order to make the better combined blackboard that has appeared on the market of teaching effect, this kind of combined blackboard and multimedia display screen are in the same place, can use as normal blackboard, also can regard as the multimedia to use simultaneously, but the most current combined blackboard of current is the unevenness in order to can slide its junction, and the display screen is most the indent form moreover, no matter be like this blackboard or its bandwagon effect of display screen not very good, for this reason the utility model provides a combined blackboard structure for colleges and universities teaching.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a combination formula blackboard structure for colleges and universities' teaching to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a combination formula blackboard structure for colleges and universities teaching, includes main frame, the inside symmetry of main frame is equipped with two first blackboards and two second blackboards, slide rail sliding connection that two second blackboards were opened through the symmetry on the main frame respectively is in the inside of main frame, and the second blackboard is by motor drive, and the rear side of two second blackboards and the internally mounted who is located the main frame have the display screen that is used for showing teaching content.

Preferably, the equal fixedly connected with slide shafts in both ends of the both sides face about the second blackboard, and the slide shafts extend to the inside of the slide rail that corresponds respectively, and two slide shafts that are located the downside extend to the inside of fixed frame through the slide rail that corresponds and are connected with the drive plate, the drive plate is connected in the inside two-way screw rod meshing of fixed frame with the rotation, and the motor shaft interconnect of two-way screw rod and motor.

Preferably, the display screen is installed in the installation shell, and equal fixedly connected with connecting plate on the both ends face of installation shell, connecting plate and fixed connection are at the inside fixed axle sliding connection of main frame, and are connected with extension spring between the inside wall of connecting plate and main frame, a terminal surface that two second blackboards are close to each other is the inclined plane.

Preferably, the outer side surface of the second blackboard and the inner side surface of the first blackboard are both inclined surfaces, and the inclined surfaces of the second blackboard and the corresponding first blackboard correspond to each other.

Preferably, the outer end of first blackboard articulates in the inside of main frame through the pivot that its fixed connection has, and is connected with torque spring between the inside wall of pivot and main frame, the slide rail comprises first transverse groove, second transverse groove and spread groove, and second transverse groove and first transverse groove are parallel to each other, and the spread groove communicates first transverse groove, the one end that the second transverse groove is close to each other.

Preferably, two identical sliding rails are arranged at one end of the inner side face of the main frame, each sliding rail is composed of a straight groove and a chute which are communicated, and the two sliding rails at the two ends of the main frame are symmetrical to each other.

Preferably, a sliding groove is formed in the driving plate, and the lower end of the sliding shaft extends into the sliding groove and is connected with the driving plate in a sliding mode.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a slide-shaft, cooperation between slide rail and the drive plate, it can control two second blackboards simultaneously to opposite direction motion to have realized the motor through two-way screw rod, thereby can control whether the display screen exposes the use, and under the effect on inclined plane on first transverse groove, second transverse groove and spread groove and second blackboard and the first blackboard, it can keep a plane with first blackboard when the second blackboard is closed, and pop out one section distance from the inside of main frame when the second blackboard slides open, thereby can reach fine bandwagon effect.

Drawings

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

FIG. 2 is a view showing an opened state of the second blackboard according to the present invention;

FIG. 3 is an exploded view of the second blackboard and the main frame of the present invention;

FIG. 4 is a schematic view of the internal structure of the main frame of the present invention;

figure 5 is an exploded view of figure 4 in accordance with the present invention;

FIGS. 6-A to 6-D are diagrams showing the movement sequence of the second blackboard according to the present invention;

fig. 7 is a schematic view of the connection between the sliding shaft and the driving plate according to the present invention;

fig. 8 is an exploded view of the slide shaft and the drive plate of the present invention;

fig. 9 is a schematic view of the internal structure of the rotary trough of the present invention;

FIG. 10 is a sectional view of the first and second blackboards according to the present invention;

fig. 11 is a schematic view ii of the overall structure of the present invention;

FIG. 12 is a schematic view II of the internal structure of the main frame of the present invention;

figure 13 is an exploded view of figure 12 in accordance with the present invention;

fig. 14-a to 14-C are diagrams ii showing the movement sequence of the second blackboard according to the present invention.

In the figure: 1. the blackboard comprises a main frame, 2, a first blackboard, 3, a second blackboard, 4, a sliding rail, 5, a motor, 6, a display screen, 7, a sliding shaft, 8, a fixing frame, 9, a driving plate, 10, a bidirectional screw rod, 11, a sliding groove, 12, a mounting shell, 13, a connecting plate, 14, a fixing shaft, 15, an extension spring, 16, an inner core, 17, a supporting plate, 18, a writing plate, 19, a rotating shaft, 20, a torsion spring, 21, a rotating groove, 22, a first transverse groove, 23, a second transverse groove, 24, a connecting groove, 25, a straight groove, 26 and a chute.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the drawings, the utility model provides a technical scheme: a combined blackboard structure for teaching in colleges and universities comprises a main frame 1, wherein the main frame 1 can be arranged on the wall of a classroom through a mounting plate fixedly connected with the main frame 1, two first blackboards 2 and two second blackboards 3 are symmetrically arranged in the main frame 1, the first blackboards 2 and the second blackboards 3 can be designed in a cladding mode to achieve the effect of no frame (the middle part is an inner core 16, the rear side surface is a support plate 17, the front side surface is a writing board 18, the writing board 18 on the front side surface is fixedly connected with the support plate 17 on the rear side surface by respectively bypassing the two ends of the inner core), so that the display effect is better, the two second blackboards 3 are respectively connected in the main frame 1 in a sliding mode through sliding rails 4 symmetrically arranged on the main frame 1, the two second blackboards 3 are positioned between the two first blackboards 2, the inner side surfaces on the upper side and the lower side of the main frame 1 are respectively provided with sliding rails 4, the second blackboards 3 can slide back and forth in the main frame 1 along the track of the slide rail 4, the second blackboards 3 are driven by the motor 5, the motor shaft of the motor 5 can drive the two second blackboards 3 to slide in the main frame 1, the motor shaft of the motor 5 can drive the two second blackboards 3 to slide towards the two ends of the main frame 1 simultaneously, or the two second blackboards 3 can slide towards the middle of the main frame 1 simultaneously, the motor 5 is arranged on one side surface of the main frame 1, the outer side of the motor 5 is provided with a protective frame which is fixedly connected on the main frame 1, a display screen 6 for displaying teaching contents is arranged at the rear side of the two second blackboards 3 and positioned in the main frame 1, when the two second blackboards 3 slide towards the two ends of the main frame 1 simultaneously, the display screen 6 can be exposed, and at the same time, the second blackboards 3 after sliding open can be used for writing, when the two second blackboards 3 slide towards the middle part of the main frame 1 at the same time, the display screen 6 can be shielded by the second blackboards 3, and at the moment, writing can be carried out on the two first blackboards 2 or the two second blackboards 3;

the display screen 6 can directly display some teaching contents which can not be displayed through the blackboard writing, so that the teaching effect is better.

Specifically, both ends of the upper side surface and the lower side surface of the second blackboard 3 are fixedly connected with sliding shafts 7, the sliding shafts 7 respectively extend into corresponding sliding rails 4, the second blackboard 3 is provided with four sliding shafts 7, the four sliding shafts 7 all extend into the corresponding sliding rails 4, so that the second blackboard 3 can stably slide back and forth in the main frame 1, the two sliding shafts 7 at the lower side surface extend into the fixing frame 8 through the corresponding sliding rails 4 and are connected with a driving plate 9, the sliding rails 4 at the lower side penetrate through the main frame 1, the fixing frame 8 is fixedly connected with the lower side surface of the main frame 1, the sliding shafts 7 extend into the fixing frame 8 through the sliding rails 4, the driving plate 9 is meshed with a bidirectional screw 10 rotatably connected into the fixing frame 8, the threads at both ends of the bidirectional screw 10 are symmetrical to each other, and the bidirectional screw 10 is rotatably connected between the inner side walls at both ends of the fixing frame 8, the bidirectional screw 10 rotates to enable the driving plates 9 at two ends of the bidirectional screw to simultaneously move in opposite directions, so that the two second blackboards 3 simultaneously move in opposite directions, the bidirectional screw 10 is mutually connected with a motor shaft of the motor 5, one end of the bidirectional screw 10 penetrates through the fixing frame 8 and is fixedly connected with the motor shaft of the motor 5, and the motor 5 can drive the bidirectional screw 10 to rotate so that the driving plates 9 drive the second blackboards 3 to slide back and forth in the main frame 1 through the sliding shafts 7;

the motor 5 may adopt a forward and reverse rotation motor so as to rotate the bidirectional screw 10 clockwise or counterclockwise, thereby controlling the sliding direction of the second blackboard 3.

In order to make the display effect of the display screen 6 better, the display screen 6 is designed to be in a ejectable form, specifically, the display screen 6 is installed inside the installation shell 12, the installation shell 12 can play a certain role in protecting the display screen 6, the installation shell 12 is located at the middle position inside the main frame 1, and the two end faces of the installation shell 12 are fixedly connected with the connection plates 13, the connection plates 13 are slidably connected with the fixed shaft 14 fixedly connected inside the main frame 1, the fixed shaft 14 is fixedly connected on the inner side wall of the main frame 1, and the extension spring 15 is connected between the connection plates 13 and the inner side wall of the main frame 1, the two ends of the extension spring 15 are respectively fixedly connected with the inner side wall of the main frame 1 and the connection plates 13, when the second blackboard 3 slides to the two ends of the main frame 1, the extension spring 15 will eject the installation shell 12 when the installation shell 12 is not blocked, so that the display screen 6 can move forward for a distance, make first blackboard 2 and second blackboard 3 can not produce the display screen 6 and shelter from, can make the bandwagon effect of display screen 6 better, a terminal surface that two second blackboards 3 are close to each other is the inclined plane, and the setting on inclined plane can make second blackboard 3 can be better when sliding to main frame 1 middle part crowd the inside of main frame 1 back to installation shell 12.

Particularly, the lateral surface of second blackboard 3 and the medial surface of first blackboard 2 are the inclined plane, and the inclined plane of second blackboard 3 and the first blackboard 2 that corresponds each other, as shown in fig. 4 or fig. 12, the laminating that second blackboard 3 and first blackboard 2 can be fine is in the same place, form a plane (can make the bandwagon effect of first blackboard 2 and second blackboard 3 better), and second blackboard 3 can be along the inclined plane motion on first blackboard 2 when the left slip, thereby can move the place ahead of first blackboard 2 (as shown in fig. 6 or fig. 14), show display screen 6.

The first embodiment is as follows:

specifically, the outer end of the first blackboard 2 is hinged inside the main frame 1 through a rotating shaft 19 fixedly connected with the first blackboard 2, one end of each of the two first blackboards 2, which is far away from each other, is the outer end, the upper side surface and the lower side surface of the first blackboard 2 are fixedly connected with the rotating shaft 19, the first blackboard 2 can rotate more stably, a torsion spring 20 is connected between the rotating shaft 19 and the inner side wall of the main frame 1, the rotating shaft 19 extends to the inside of a rotating groove 21 formed in the inner side wall of the main frame 1, the torsion spring 20 is sleeved outside the rotating shaft 19, the two ends of the torsion spring 20 are respectively fixedly connected with the rotating shaft 19 and the groove wall of the rotating groove 21, the arrangement can smoothly follow the track of the sliding rail 4 to generate deflection when the second blackboard 3 rotates to the middle part of the main frame 1, at the moment, the first blackboard 2 can overcome the elasticity of the torsion spring 20 to rotate to the inside of the main frame 1 to give way for the second blackboard 3, when the second blackboard 3 completely moves to the middle of the main frame 1, the torsion spring 20 can keep the first blackboard 2 in a horizontal state, when the first blackboard 2 is used for writing, the torsion force of the torsion spring 20 can keep the first blackboard 2 in a horizontal state all the time, and writing is not affected, the sliding rail 4 is composed of a first transverse groove 22, a second transverse groove 23 and a connecting groove 24, the first transverse groove 22 is positioned at the front side of the first blackboard 2, the second transverse groove 23 is positioned at one end of the first blackboard 2, the second transverse groove 23 and the first transverse groove 22 are parallel, the connecting groove 24 connects the ends of the first transverse groove 22 and the second transverse groove 23 which are close to each other, when the second blackboard 3 starts to move to the two ends of the main frame 1, the outer end of the second blackboard 3 firstly moves obliquely along the connecting groove 24 to the inner part of the first transverse groove 22, at the moment, the second blackboard 3 becomes an inclined state (as shown in figure 6-B), and then the second blackboard 3 continuously moves, until the sliding shaft 7 at the inner end moves to the inside of the first horizontal groove 22 and the second blackboard 3 becomes horizontal and is positioned in front of the first blackboard 2 (as shown in fig. 6-C), when the second blackboard 3 moves to the middle of the main frame 1, the inner end of the second horizontal groove 23 is obliquely moved along the connecting groove 24, at the moment, the second blackboard 3 and the first blackboard 2 become inclined (as shown in fig. 6-D, the first blackboard 2 is extruded by the second blackboard 3 to overcome the torsion of the torsion spring 20 and rotate), until the sliding shaft 7 at the outer end also moves into the second horizontal groove 23, at the moment, the second blackboard 3 and the first blackboard 2 both become horizontal, the second blackboard 3 also smoothly moves to the middle part of the main frame 1 (as shown in fig. 6-a, when the second blackboard 3 moves to the middle part of the main frame 1, the first blackboard 2 is not extruded any more, and the first blackboard 2 becomes horizontal under the action of the torsion spring 20);

the ends of the two second blackboards 3 close to each other are inner ends.

Specifically, open on the drive plate 9 has spout 11, the inside and drive plate 9 sliding connection that the lower extreme of slide shaft 7 extends to spout 11, because slide shaft 7 can be along the orbit motion of slide rail 4 to not only can lateral motion, also can produce vertical direction's motion (as shown in fig. 6 or fig. 14), can make drive plate 9 drive slide shaft 7 carry out lateral motion through the setting of spout 11, can slide in the inside of spout 11 when slide shaft 7 produces vertical direction's motion simultaneously, thereby smooth completion vertical direction's motion.

Example two:

in order to make the first blackboard 2 more stable and easier to install, the form of the sliding rail 4 in the first embodiment may be replaced by that described below, specifically, two identical sliding rails 4 are arranged at one end of the inner side surface of the main frame 1, and the sliding rail 4 is composed of a straight groove 25 and a chute 26 which are communicated with each other, two sliding shafts 7 at two ends of the second blackboard 3 respectively extend to the inside of the corresponding sliding rails 4, (as shown in fig. 14), when the second blackboard 3 starts to move to two ends of the main frame 1, two ends of the second blackboard will first move obliquely and synchronously along the chute 26, so as to move integrally to the front of the first blackboard 2, and then move linearly to two ends of the main frame 1 along the straight groove 25, and the two sliding rails 4 at two ends of the main frame 1 are symmetrical to each other, so as to make the two second blackboards 3 move synchronously;

the first blackboard 2 is not affected during the movement of the second blackboard 3, so the first blackboard 2 can be directly and fixedly connected inside the main frame 1 in the embodiment.

The working principle is as follows: when the display screen 6 is needed to be used, the motor 5 can be started to drive the bidirectional screw rod 10 to rotate clockwise, so that the two second blackboards 3 can move towards the two sides of the main frame 1 simultaneously, the display screen 6 is exposed, when the second blackboards 3 completely move to the front of the first blackboard 2 and the installation shell 12 is not blocked, the motor 5 stops moving (for example, when the motor 5 rotates clockwise for 20 circles, the second blackboards 3 completely move to the front of the first blackboard 2, and the motor 5 stops working at the moment), the extension spring 15 can push the installation shell 12 out, so that the display effect of the display screen 6 is better, and the second blackboards 3 and the display screen 6 can be used at the moment;

can start motor 5 when need not using display screen 6 and make it drive two-way screw rod 10 anticlockwise rotation, thereby make two second blackboards 3 move to the middle part of main frame 1 simultaneously, second blackboards 3 can push up the inside of installing shell 12 to main frame 1 when the motion, thereby can withdraw the inside of main frame 1 with display screen 6, motor 5 can the stop work when two second blackboards 3 are closed each other (when motor 5 anticlockwise rotates 20 rings, two second blackboards 3 can be closed each other, motor 5 can the stop work this moment), can use first blackboard 2 and second blackboard 3 simultaneously this moment.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a combination formula blackboard structure for colleges and universities' teaching, includes main frame (1), its characterized in that: the inside symmetry of main frame (1) is equipped with two first blackboards (2) and two second blackboards (3), two second blackboards (3) are respectively through main frame (1) go up slide rail (4) sliding connection that the symmetry was opened in the inside of main frame (1), and second blackboard (3) are driven by motor (5), and the rear side of two second blackboards (3) and the internally mounted who is located main frame (1) have display screen (6) that are used for showing the teaching content, the equal fixedly connected with sliding shaft (7) in both ends of both sides face about second blackboard (3), and sliding shaft (7) extend to the inside of corresponding slide rail (4) respectively, two sliding shaft (7) that are located the downside extend to the inside of fixed frame (8) and are connected with drive plate (9) through corresponding slide rail (4), drive plate (9) are connected in the inside two-way screw rod (10) meshing of fixed frame (8) with the rotation connection, and motor shaft interconnect of two-way screw rod (10) and motor (5), install the inside at installation shell (12) display screen (6), and equal fixedly connected with connecting plate (13) on the both ends face of installation shell (12), fixed axle (14) sliding connection inside main frame (1) of connecting plate (13) and fixed connection, and be connected with extension spring (15) between the inside wall of connecting plate (13) and main frame (1), a terminal surface that two second blackboards (3) are close to each other is the inclined plane, the lateral surface of second blackboard (3) and the medial surface of first blackboard (2) are the inclined plane, and the inclined plane of second blackboard (3) and the first blackboard (2) that corresponds each other.

2. A combined blackboard structure for teaching in colleges and universities, according to claim 1, characterized in that: the outer end of first blackboard (2) articulates in the inside of main frame (1) through pivot (19) that its fixed connection has, and is connected with torsion spring (20) between the inside wall of pivot (19) and main frame (1), slide rail (4) comprise first cross slot (22), second cross slot (23) and spread groove (24), and second cross slot (23) and first cross slot (22) are parallel to each other, and spread groove (24) communicate the one end that first cross slot (22), second cross slot (23) are close to each other.

3. A combined blackboard structure for teaching in colleges and universities, according to claim 1, characterized in that: the sliding rail device is characterized in that two identical sliding rails (4) are arranged at one end of the inner side face of the main frame (1), each sliding rail (4) is composed of a straight groove (25) and a chute (26) which are communicated with each other, and the two sliding rails (4) which are located at the two ends of the main frame (1) are symmetrical to each other.

4. A combined blackboard structure for teaching in colleges and universities, according to claim 2 or 3, characterized in that: the driving plate (9) is provided with a sliding chute (11), and the lower end of the sliding shaft (7) extends into the sliding chute (11) and is connected with the driving plate (9) in a sliding manner.

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