CN209719050U - A kind of plane change rail push-and-pull blackboard - Google Patents

Abstract

Become rail the utility model discloses a kind of plane and push and pull blackboard, comprising: at least one piece of fixed plate, at least one piece of sliding panel and slide assemblies；Slide assemblies include: the first sliding part and the second sliding part of at least one set of removable connection, the fixation sliding part for carrying the displacement sliding part of the first sliding part sliding and for carrying the sliding of the second sliding part；Locating slot is set in the setting position of displacement sliding part, when the first sliding part is slided in locating slot, sliding panel is located in the same horizontal plane with fixed plate；Fixed sliding part is vertically arranged with displacement sliding part, and the back side of blackboard is arranged in slide assemblies, forms concealed slide assemblies.Space shared by fixed rack at the top of sliding panel under normal conditions is eliminated, write area can be increased, while blackboard frame or the blackboard frame using very little can be saved, production cost is saved, keeps blackboard overall appearance succinct, give the good visual experience of people.

Description

Planar track-changing push-pull blackboard

Technical Field

The utility model relates to a teaching equipment, in particular to plane becomes rail push-and-pull blackboard.

Background

Conventional teaching blackboard on the market at present simple structure, the primary structure all has the frame, the sliding plate, the fixed plate three-layer is constituteed, fixed plate and sliding plate are front and back laminated structure, the sliding plate is under closed state, in being not in same plane with the fixed plate, inevitably can appear the problem that the part content on the fixed plate is shielded by the sliding plate, the influence is write and the whole smoothness nature of watching, simultaneously, also can give other people and bring the visual effect of the complicacy, cause the bad experience of watching for the student.

The inventor finds that the track-changing push-pull blackboard disclosed by the prior art comprises: the device comprises a slide rail, a guide wheel groove, a trolley sliding in the slide rail and a slide block sliding in the guide wheel groove; the sliding block can slide back and forth along a track on the back plate of the trolley; the tail end of the guide wheel groove is provided with a track-changing guide wheel groove, the sliding block moves to drive the sliding plate to move, the sliding block enters the track-changing guide wheel groove when moving to the tail end of the guide wheel groove, and the sliding plate and the fixed plate are positioned in the same plane.

In the technical scheme, although the sliding plate and the fixed plate can be in the same plane, the sliding rail and the guide wheel groove are arranged on the upper end face and the lower end face of the blackboard in parallel, the sliding plate needs to be connected with the sliding block through the U-shaped connecting piece, and enough moving space needs to be provided for the U-shaped piece in the rail changing process, so that the area of an outer frame of the blackboard is increased, the floor area of the blackboard is increased, and the writable range is reduced to a certain extent; meanwhile, the structural design increases the overall thickness of the blackboard, influences the overall attractiveness and increases the production cost of the blackboard. Because the slide rail sets up the upper and lower both ends at the blackboard, when carrying out the sliding plate propulsion or pull out, the condition that the board is stuttered or is rocked appears sliding because the atress is uneven easily.

In addition, the existing push-pull blackboard is manually pushed and pulled, so that the physical strength of a user is consumed, and great inconvenience is brought to the user.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a plane becomes rail push-and-pull blackboard adopts the hidden mounting means of sliding assembly, reduces the area of blackboard frame as far as possible, and the blackboard outward appearance is succinct, and thickness reduces, saves occupation of land space, has increased and has write the scope.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in one or more embodiments, disclosed is a planar orbital transfer push-pull blackboard comprising: at least one fixed plate, at least one sliding plate and a sliding assembly; the sliding assembly includes: the sliding device comprises at least one group of first sliding piece and second sliding piece which are movably connected, a deflection sliding part for bearing the sliding of the first sliding piece and a fixed sliding part for bearing the sliding of the second sliding piece; a positioning groove is arranged at the set position of the deflection sliding part, and when the first sliding part slides into the positioning groove, the sliding plate and the fixed plate are positioned in the same horizontal plane; the fixed sliding part and the displacement sliding part are vertically arranged, and the sliding assembly is arranged on the back of the blackboard to form a hidden sliding assembly.

The fixed sliding part and the displacement sliding part are vertically arranged, so that a stable effect can be achieved during sliding and displacement, the integral thickness of the sliding assembly is reduced, and conditions are provided for the rear arrangement of the sliding assembly; thereby reducing the thickness of the black plate.

Hide the back to the blackboard with the sliding assembly, saved the shared space of the fixed slide rail that sets up both ends about the blackboard in the current scheme, can increase and write the area, save the blackboard frame or adopt very little blackboard frame, practice thrift manufacturing cost, make the whole outward appearance of blackboard succinct, give other people good visual experience.

The shifted sliding part is used for bearing the sliding of the first sliding part, and the structure of the shifted sliding part can be a guide rail, a slide rail, a guide groove, a guide plate or other structural forms which can be conventionally thought by those skilled in the art; the positioning groove arranged on the displacement sliding part can realize displacement of the first sliding part in the sliding process.

The fixed sliding part is used for carrying the sliding of the second sliding part, and the structure of the fixed sliding part can be a guide rail, a sliding rail, a guide groove, a guide plate or other structural forms which can be conventionally thought by those skilled in the art.

Further, a spring is connected between the movably connected first sliding piece and the movably connected second sliding piece.

When the first sliding piece slides out of the positioning groove, the spring is opened; when the first sliding piece slides into the positioning groove, the spring automatically returns. By arranging the spring, the first sliding piece automatically slides into the positioning groove under the action of the return tension of the spring, so that the operation is labor-saving, and the smoothness and the operation experience of the sliding plate in rail transfer are improved; meanwhile, the spring can also play a role in fixing the sliding plate, so that the sliding plate can be prevented from shaking.

Furthermore, the fixed sliding part comprises two fixed sliding rails, the fixed sliding rails are respectively arranged on two sides of the displacement sliding part, and the fixed sliding rails are perpendicular to the plane where the displacement sliding part is located.

Furthermore, the displacement sliding part comprises a displacement sliding rail, a first positioning groove and a second positioning groove are respectively arranged at the set positions of the displacement sliding rail, and the first positioning groove and the second positioning groove are respectively positioned on different horizontal planes.

Further, the sliding assembly includes two sets of movably connected first sliding parts and second sliding parts, which are respectively: the first sliding block is movably connected with the third sliding block, and the second sliding block is movably connected with the fourth sliding block;

the first sliding block and the second sliding block respectively slide in the deflection sliding rails, wherein a pulley of the first sliding block slides along a plane where the first positioning groove is located; the pulley of the second sliding block slides along the plane where the second positioning groove is located; when the first slide block enters the first positioning groove, the second slide block enters the second positioning groove, and at the moment, the sliding plate and the fixed plate are positioned in the same horizontal plane.

First constant head tank and second constant head tank are in on the horizontal plane of difference respectively, can guarantee that two sliders can only get into the constant head tank corresponding with it at the slip in-process, and can not receive the influence of other constant head tanks to avoid the sliding plate to receive the influence of other constant head tanks and the problem that the card is pause and is rocked to appear.

Or the position-changing sliding part comprises a first position-changing sliding rail and a second position-changing sliding rail, and a set position of each position-changing sliding rail is provided with a positioning groove;

further, the air conditioner is provided with a fan,

the sliding assembly comprises two groups of first sliding parts and second sliding parts which are movably connected, and the two groups of first sliding parts and the second sliding parts are respectively as follows: the first sliding block is movably connected with the third sliding block, and the second sliding block is movably connected with the fourth sliding block;

the first sliding block and the second sliding block respectively slide in different displacement sliding rails, when the first sliding block enters the first positioning groove of the displacement sliding rail where the first sliding block is located, the second sliding block also enters the second positioning groove of the displacement sliding rail where the second sliding block is located, and at the moment, the sliding plate and the fixed plate are located in the same horizontal plane.

Further, still include: an automatic push-pull assembly; the automatic push-pull assembly includes: the driving part is connected with the transmission part, and the transmission part is connected with the first sliding part; the automatic push-pull assembly drives the first sliding piece connected with the automatic push-pull assembly to move, so that the sliding plate is automatically opened and closed, time and labor are saved, and user experience is improved.

Further, the transmission portion includes: the conveying belt is arranged between the driving wheel and the driven wheel; a third connecting piece is fixed at the set position of the conveyor belt and is connected with the first sliding piece;

furthermore, the driving wheel and the driven wheel are fixed on the end face where the sliding assembly is located through a bearing seat.

Further, the driving part includes: a controller, a driver and a synchronous motor; the controller controls whether to provide power for a driver according to the received instruction, and the driver is connected with the synchronous motor;

further, the air conditioner is provided with a fan,

the driving part further includes: travel switches arranged at both ends of the maximum sliding range of the sliding plate; after the first sliding piece contacts the travel switch, the synchronous motor stops running.

Further, the air conditioner is provided with a fan,

the structure of the first positioning groove and/or the second positioning groove comprises: the first limiting plate is connected with the first displacement slide rail or the second displacement slide rail, and the second limiting plate is connected with the first limiting plate; the joint of the first limiting plate and the first displacement slide rail or the second displacement slide rail is in smooth transition; the joint of the first limiting plate and the second limiting plate is in smooth transition;

or,

the structure of the first positioning groove and/or the second positioning groove comprises: the fourth limiting plate and the fifth limiting plate are connected with the first displacement slide rail or the second displacement slide rail, and the arc limiting plates are respectively connected with the fourth limiting plate and the fifth limiting plate; and the joints of the fourth limiting plate and the fifth limiting plate and the first displacement slide rail or the second displacement slide rail are in smooth transition.

Further, the structural form of the plane rail-changing push-pull blackboard can be as follows:

the fixed plates are arranged at two sides of the blackboard, and two sliding plates are arranged between the two fixed plates; the two sliding plates can respectively slide in opposite directions through the sliding assemblies; when the two sliding plates are positioned at the first position, the two sliding plates and the fixed plate are positioned in the same plane;

or,

the fixed plates are arranged at two sides of the blackboard, and a sliding plate is arranged between the two fixed plates; the sliding plate can slide towards one of the fixed plates through the sliding assembly; when the sliding plate is positioned at the first position, the sliding plate and the fixed plate are positioned in the same plane;

or,

the fixed plate is arranged on one side of the blackboard, and the sliding plate is arranged on the other side of the blackboard; the sliding plate can slide towards the direction of the fixed plate through the sliding assembly; the sliding plate is located in the first position and is located in the same plane as the fixed plate.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) when the sliding assembly comprises two sets of fixed sliding rails and a set of shifting sliding rail structures, the pulleys of the sliding blocks slide on different horizontal planes, so that the pulleys of the sliding blocks can not be in direct contact with the positioning grooves when passing through the positioning grooves which do not correspond to the sliding blocks, the clamping and sliding of the sliding plates can not be caused, the user experience degree is good, and the thickness of the black plate is further reduced.

(2) When the sliding assembly comprises two groups of fixed sliding rails and two groups of displacement sliding rail structures, the two groups of fixed sliding rails are oppositely arranged on two sides, and the two groups of displacement sliding rails are arranged in parallel in the width direction; compare in current with the fixed slide rail all along the technical scheme that width direction set up with the slide rail that shifts, can reduce the holistic width of sliding assembly to reduce blackboard thickness, reduce and take up an area of the space, provide the condition for the sliding assembly postposition.

(3) Set up fixed slide rail respectively in both sides, fixed slide rail not only can play the gliding effect of direction, simultaneously because fixed slide rail is to the limiting displacement of gyro wheel, at the blackboard in pull out or slip in-process, can also play spacing, the effect of support.

(4) The sliding assembly is arranged on the back of the blackboard, so that hidden installation is realized; the space occupied by the fixed sliding rail at the top of the sliding plate under the common condition is saved, the writing area can be increased, and meanwhile, a blackboard frame or only a small blackboard frame can be saved, so that the production cost of the blackboard is greatly reduced, the overall appearance of the blackboard is simple, and good visual experience is brought to people.

(5) When the sliding plate is completely closed, the sliding plate and the fixed plate are located in the same horizontal plane, writing fluency can be guaranteed, and visual experience is improved.

(6) The guide angle that has certain slant angle is selected to the slide rail that shifts, and the sliding plate has the power in the direction angle of returning all the time under the pulling force of return spring, and at the sliding plate closure in-process, when the sliding plate was close closed state, the leading wheel of slider below can prolong the slow return in inclined plane of slant direction angle for whole process slip is smooth, experiences the degree good. And when not having oblique direction angle, the sliding plate reaches closed position sliding plate and directly falls in the direction angle under the pulling force of return spring, can influence experience degree.

(7) The automatic sliding assembly can realize automatic opening and closing of the sliding plate, manpower is saved, and the operation is more convenient.

(8) The plane orbital transfer automatic push-pull blackboard can be suitable for various application places such as classrooms, multimedia classrooms, meeting rooms, offices and the like.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is a schematic structural view of a midplane track-changing push-pull blackboard in an embodiment;

FIG. 2 is a schematic view of a sliding assembly according to an embodiment;

FIG. 3 is a cross-sectional view of the slide assembly of the first embodiment;

FIG. 4 is a schematic diagram illustrating the positions of the first slider and the second slot in the first embodiment;

FIG. 5 is a first schematic view of a positioning groove structure according to an embodiment;

FIG. 6 is a schematic view of a positioning groove structure in the first embodiment;

FIG. 7 is a schematic view of a transmission part of the automatic push-pull assembly according to the third embodiment;

FIG. 8 is a schematic view of a driving part of the automatic push-pull assembly according to the third embodiment;

the automatic transmission device comprises a sliding plate 1, a fixed plate 2, a handle 3, a first displacement slide rail 4, a first slide block 6, a first slide block 7, a second slide block 8, a first positioning groove 9, a second positioning groove 10, a third slide block 11, a fourth slide block 11, a first fixed slide rail 12, a second fixed slide rail 13, a return spring 14, a first connecting piece 15, a first limiting plate 16, a second limiting plate 17, a third limiting plate 18, a third limiting plate 19, a fourth limiting plate 20, a fifth limiting plate 21, an arc limiting plate 21, a second connecting piece 22, a driving wheel 23, a driven wheel 24, a driving belt 25, a driving belt buckle 26, a third connecting piece 27, a controller 30, a driver 31, a switching power supply 32, a transmission shaft 33, a coupling 34, a synchronous motor 35 and a bearing seat 36.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Example one

In one or more embodiments, disclosed is a planar orbital transfer push-pull blackboard, as shown in fig. 1, including: two fixed plates 2, two sliding plates 1 and a sliding component; the two fixing plates 2 are arranged on two sides of the blackboard, and an electronic display screen is arranged in the middle of the two fixing plates 2; the two sliding plates 1 are arranged between the two fixed plates 2 and in front of the electronic display screen; when the two sliding plates 1 are completely closed (namely, in the first position, the same below), the electronic display screen can be completely shielded and is positioned in the same horizontal plane with the fixed plate 2, and at the moment, the fixed plate 2 and the sliding plates 1 form a complete and continuous blackboard surface; the two sliding plates 1 can slide in two opposite directions through the sliding assemblies respectively, and when the two sliding plates 1 are completely opened, the electronic display screen can be completely exposed.

The sliding assemblies are arranged on the back of the blackboard and can be lower than the upper end face and the lower end face of the blackboard and can be parallel and level with the upper end face and the lower end face of the blackboard, therefore, the sliding assemblies are hidden on the back of the blackboard and are not exposed, a blackboard frame can be omitted or a small blackboard frame can be adopted, the writing space is increased, the attractiveness of the blackboard is improved, and the production cost is reduced.

The sliding components are symmetrically arranged up and down on the blackboard, and the upper end and the lower end of the sliding plate 1 are respectively connected with the sliding components; alternatively, the sliding unit may be provided only at one end of the blackboard.

The width of the sliding assembly can be reduced by adopting a scheme that each sliding block corresponds to one positioning groove, so that the thickness of a blackboard frame can be reduced; however, in the sliding process, when the two sliding blocks pass through the positioning grooves which are not corresponding to the sliding blocks, the sliding blocks are easy to clamp and shake, and the user experience effect is poor.

In the present embodiment, the slide module structure, as shown in fig. 2, includes: a first displacement slide rail 4, and a first slide block 6 and a second slide block 7 which can move in the first displacement slide rail 4; the sliding plate 1 is connected with the first sliding block 6 and the second sliding block 7 through the first connecting piece 15, and the sliding plate 1 drives the first sliding block 6 and the second sliding block 7 to move together.

The first displacement slide rail 4 is used to support the first slider 6 and the second slider 7 for sliding movement, and the first displacement slide rail 4 may be configured as a guide rail, a guide groove (groove-shaped guide structure), a guide plate (flat plate-shaped guide structure), or the like.

The tail end and the set position of the first displacement slide rail 4 are respectively provided with a first positioning groove 8 and a second positioning groove 9, and the first positioning groove 8 and the second positioning groove 9 are respectively arranged on different horizontal planes of the first displacement slide rail 4. Pulleys are fixed at the bottoms of the first sliding block 6 and the second sliding block 7, and the first sliding block 6 and the second sliding block 7 respectively slide on different horizontal planes in the first deflection sliding rail 4 through the corresponding pulleys, as shown in fig. 3 and 4. The pulley on the first sliding block 6 and the opening of the first positioning groove 8 are in the same horizontal plane, and the pulley on the second sliding block 7 and the opening of the second positioning groove 9 are in the same horizontal plane. When the first slide block 6 enters the first positioning groove 8, the second slide block 7 just enters the second positioning groove 9, and at the moment, the sliding plate and the fixed plate are in the same plane. Since the pulleys of the two sliders are located on different horizontal planes, the pulley of the first slider 6 will continue to slide forward along the lower side of the second positioning slot 9 when passing through the second positioning slot 9, and will not slide into the opening of the second positioning slot 9.

The first positioning groove 8 is shown in fig. 5, and includes: a first limit plate 16, a second limit plate 17 and a third limit plate 18; the first limiting plate 16 and the second limiting plate 17 are respectively connected with the tail end of the first deflection slide rail 4, and the third limiting plate 18 is vertically connected with the first limiting plate 16; the junction of the third limiting plate 18 and the second limiting plate 17 is in smooth transition; the connection between the second limiting plate 17 and the end of the first displacement slide rail 4 is in smooth transition. The length of the third stopper plate 18 determines the extension length of the first positioning groove 8.

The structure of the second positioning slot 9 is shown in fig. 6, and includes: a fourth limiting plate 19 and a fifth limiting plate 20 respectively connected with the first displacement slide rail, and an arc limiting plate 21 respectively connected with the fourth limiting plate 19 and the fifth limiting plate 20; the joints of the fourth limiting plate 19 and the fifth limiting plate 20 and the first deflection slide rail are in smooth transition; the fourth stopper plate 19 and the fifth stopper plate 20 are equal in length, and the length thereof determines the extension length of the second positioning groove 9.

Of course, the structure of the second positioning groove 9 can also take the form of the first positioning groove 8.

It should be noted that when the shifting slide rail adopts a structure form of a guide plate, the first limiting plate 16 may be omitted.

The third slide block 10 corresponds to the first slide block 6 in arrangement position; the first slide block 6 is movably connected with the third slide block 10, and the fourth slide block 11 corresponds to the second slide block 7 in arrangement position; the fourth slider 11 is movably connected with the second slider 7.

Taking the first slider 6 and the third slider 10 as an example, the movable connection between the two can be:

the first sliding block 6 is sleeved on the periphery of the third sliding block 10, and the first sliding block 6 and the third sliding block 10 are respectively provided with a matched bulge and a guide groove, so that the first sliding block 6 can move back and forth relative to the third sliding block 10; here, front and rear are relative to the blackboard, and the writing surface of the blackboard is front, the back surface is rear, and the same is true below.

A return spring 14 is connected between the first slider 6 and the third slider 10, and when the sliding plate 1 is opened, the first slider 6 always has a return pulling force; when the sliding plate 1 returns to the initial position and the first pulley reaches the tail end of the first displacement sliding rail 4, the first sliding block 6 moves towards the tail end of the first positioning groove 8 under the action of the return tension, so that the first sliding block 6 automatically returns, and the fluency and the operation experience of the sliding plate 1 in the process of rail change are improved.

Alternatively, the movable mode may be:

first slider 6 is connected through second connecting piece 22 with third slider 10, second connecting piece 22 and first slider 6 fixed connection, and second connecting piece 22 cover is equipped with assorted arch and guide slot on second connecting piece 22 and the third slider 10 respectively in the periphery of third slider 10 for second connecting piece 22 can be for the back-and-forth movement of third slider 10, and the pulley setting at the bottom of second connecting piece 22 this moment.

A return spring 14 is connected between the first slider 6 and the third slider 10 or between the second connecting element 22 and the third slider 10, the principle of action being identical to that described above.

The movable connection mode of the second slider 7 and the fourth slider 11 is the same as that described above, and the description thereof is omitted.

As shown in fig. 3, rollers are respectively disposed at two ends of the third slider 10 and the fourth slider 11, and the rollers at the two ends slide in the first fixed slide rail 12 and the second fixed slide rail 13, respectively. The first fixed slide rail 12 and the second fixed slide rail 13 are arranged on two sides of the two position-changing slide rails and are perpendicular to the setting plane of the position-changing slide rails, and the two fixed slide rails are opposite.

The first fixed slide rail 12 and the second fixed slide rail 13 are not arranged in the width direction, but arranged on two side surfaces, so that the width range occupied by the sliding assembly can be reduced, the thickness of the blackboard can be reduced, the floor area of the blackboard is reduced, and conditions are provided for the rear arrangement of the sliding assembly. Meanwhile, because the third slider 10 and the fourth slider 11 and both ends are restricted in the fixed slide rail respectively, the third slider 10 and the fourth slider 11 can play limiting and supporting roles, and the sliding plate 1 is prevented from shaking or tilting due to uneven stress during pulling out, sliding or returning, so that the sliding effect of the sliding plate 1 is influenced.

When the electronic screen needs to be used, the sliding plate 1 is pulled forward through the handle 3 arranged on the sliding plate 1, the sliding plate 1 drives the first sliding block 6 to move forward relative to the third sliding block 10, and meanwhile, the second sliding block 7 moves forward relative to the fourth sliding block 11; the pulleys at the bottoms of the first sliding block 6 and the second sliding block 7 slide to the front end from the tail end of the positioning groove and enter the first displacement sliding rail 4, at the moment, the sliding plate 1 is pulled leftwards or rightwards, the first sliding block 6 and the second sliding block 7 are driven to slide along different planes in the first displacement sliding rail 4, the first sliding block 6 and the second sliding block 7 drive the third sliding block 10 and the fourth sliding block 11 to slide along fixed sliding rails on two sides until the sliding blocks slide to the positions of the limiting blocks, and at the moment, the sliding plate 1 slides to the limiting position.

When the sliding plate 1 needs to be closed, the sliding plate 1 is pulled in the opposite direction, the first sliding block 6 and the second sliding block 7 are driven to slide along different horizontal planes in the first deflection sliding rail 4, the first sliding block 6 and the second sliding block 7 respectively drive the third sliding block 10 and the fourth sliding block 11 to slide along the fixed sliding rails on the two sides until the first sliding block 6 and the second sliding block 7 respectively reach the corresponding positioning groove positions, the sliding blocks are driven to move towards the tail ends of the positioning grooves under the action of the return tension of the return springs 14 until the sliding blocks move to the tail ends of the positioning grooves, and at the moment, the sliding plate 1 returns to the first position and is located in the same horizontal plane with the fixed plate 2.

It should be noted that, as will be understood by those skilled in the art from the contents of the specification and the accompanying drawings, the first slider and the second slider described in this patent refer to a structure that slides in an offset slide rail through a pulley at the bottom; the third slide block and the fourth slide block are structures which slide in the fixed slide rail through rollers arranged at two ends. The position-changing slide rail provides a sliding track for the pulley, and a positioning groove arranged on the position-changing slide rail realizes the position change of the pulley; the fixed slide rail provides a sliding track for the roller. The same applies to the second embodiment and the third embodiment.

The front and rear directions in the present embodiment are relative to the blackboard, and the rear of the blackboard, i.e., the back of the blackboard, is the surface facing the wall, and the front of the blackboard is used for displaying or writing. The same applies to the second embodiment and the third embodiment.

In addition, the planar orbital transfer push-pull blackboard structure in the present embodiment is also applicable to the following forms of blackboard structures, for example:

the blackboard includes: two fixed plates 2, a sliding plate 1 and a sliding component; the two fixing plates 2 are arranged on two sides of the blackboard, and an electronic display screen is arranged in the middle of the two fixing plates 2; the sliding plate 1 is arranged between the two fixed plates 2 and in front of the electronic display screen; when the sliding plate 1 is in the first state, the electronic display screen can be completely shielded and is positioned in the same horizontal plane with the fixed plate 2, and at the moment, the fixed plate 2 and the sliding plate 1 form a complete and continuous blackboard surface; when the electronic screen is needed to be used, the sliding plate 1 can slide to the left (right) side of the blackboard through the sliding component; when the sliding plate 1 slides to the left (right) side limit position, the electronic display screen can be completely exposed.

Or,

the blackboard includes: a fixed plate 2, a sliding plate 1 and sliding components; one fixing plate 2 is arranged on one side of the blackboard, and an electronic display screen is arranged on the other side of the blackboard; the sliding plate 1 is arranged in front of the electronic display screen; when the sliding plate 1 is in the first state, the electronic display screen can be completely shielded and is positioned in the same horizontal plane with the fixed plate 2, and at the moment, the fixed plate 2 and the sliding plate 1 form a complete and continuous blackboard surface; when the electronic screen is needed to be used, the sliding plate 1 can slide towards the fixed plate 2 side through the sliding assembly; when the sliding plate 1 slides to the limit position, the electronic display screen can be completely exposed.

Example two

In one or more embodiments, disclosed is a planar orbital transfer push-pull blackboard, as shown in fig. 1, including: two fixed plates 2, two sliding plates 1 and a sliding component; the two fixing plates 2 are arranged on two sides of the blackboard, and an electronic display screen is arranged in the middle of the two fixing plates 2; the two sliding plates 1 are arranged between the two fixed plates 2 and in front of the electronic display screen; when the two sliding plates 1 are completely closed (namely, in the first position, the same below), the electronic display screen can be completely shielded and is positioned in the same horizontal plane with the fixed plate 2, and at the moment, the fixed plate 2 and the sliding plates 1 form a complete and continuous blackboard surface; the two sliding plates 1 can slide in two opposite directions through the sliding assemblies respectively, and when the two sliding plates 1 are completely opened, the electronic display screen can be completely exposed.

The sliding assemblies are arranged on the back of the blackboard and can be lower than the upper end face and the lower end face of the blackboard and can be parallel and level with the upper end face and the lower end face of the blackboard, therefore, the sliding assemblies are hidden on the back of the blackboard and are not exposed, a blackboard frame can be omitted or a small blackboard frame can be adopted, the writing space is increased, the attractiveness of the blackboard is improved, and the production cost is reduced.

The sliding components are symmetrically arranged up and down on the blackboard, and the upper end and the lower end of the sliding plate 1 are respectively connected with the sliding components; alternatively, the sliding unit may be provided only at one end of the blackboard.

The slide module structure includes: the sliding plate 1 can slide more stably and smoothly by arranging the two displacement slide rails; pulleys are fixed at the bottoms of the first sliding block 6 and the second sliding block 7, the first sliding block 6 slides along the first displacement sliding rail 4, and the second sliding block 7 slides along the second displacement sliding rail; the slide plate 1 is connected to the first slider 6 and the second slider 7, respectively, by means of a connecting member.

The end parts of the first displacement slide rail 4 and the second displacement slide rail are respectively connected with a first positioning groove 8 and a second positioning groove 9 which extend to the back of the blackboard; when the first slide block 6 slides to the end of the first positioning slot 8, the second slide block 7 slides right to the end of the second positioning slot 9, and at this time, the sliding plate 1 is in the first position, i.e. the sliding plate 1 and the fixed plate 2 are in the same horizontal plane.

The structures of the first positioning groove 8 and the second positioning groove 9 are the same as those of the first positioning groove, and are not described again.

The first slider 6 is movably connected with the third slider 10, the second slider 7 is movably connected with the fourth slider 11, and the movable connection mode is the same as that described in the first embodiment, and is not described again.

The third slider 10 and the fourth slider 11 have rollers at two ends thereof, and the rollers at the two ends thereof slide in the first fixed slide rail 12 and the second fixed slide rail 13, respectively. The first fixed slide rail 12 and the second fixed slide rail 13 are arranged on two sides of the two position-changing slide rails and are perpendicular to the setting plane of the position-changing slide rails, and the two fixed slide rails are opposite.

The first fixed slide rail 12 and the second fixed slide rail 13 are not arranged in the width direction, but arranged on two side surfaces, so that the width range occupied by the sliding assembly can be reduced, the thickness of the blackboard can be reduced, the floor area of the blackboard is reduced, and conditions are provided for the rear arrangement of the sliding assembly. Meanwhile, because the third slider 10 and the fourth slider 11 and both ends are restricted in the fixed slide rail respectively, the third slider 10 and the fourth slider 11 can play limiting and supporting roles, and the sliding plate 1 is prevented from shaking or tilting due to uneven stress during pulling out, sliding or returning, so that the sliding effect of the sliding plate 1 is influenced.

When the electronic screen needs to be used, the sliding plate 1 is pulled forward through the handle 3 arranged on the sliding plate 1, the sliding plate 1 drives the first sliding block 6 to move forward relative to the third sliding block 10, and meanwhile, the second sliding block 7 moves forward relative to the fourth sliding block 11; the pulleys at the bottoms of the first sliding block 6 and the second sliding block 7 slide to the front end from the tail end of the positioning groove and enter the corresponding displacement sliding rail, at the moment, the sliding plate 1 is pulled leftwards or rightwards, the first sliding block 6 and the second sliding block 7 are driven to slide in the first displacement sliding rail 4 and the second displacement sliding rail, the first sliding block 6 and the second sliding block 7 drive the third sliding block 10 and the fourth sliding block 11 to slide along the fixed sliding rails on the two sides until the sliding blocks slide to the position of the limiting block, and at the moment, the sliding plate 1 slides to the limiting position.

When the sliding plate 1 needs to be closed, the sliding plate 1 is pulled in the opposite direction, the first sliding block 6 and the second sliding block 7 are driven to slide in the first displacement sliding rail 4 and the second displacement sliding rail, the first sliding block 6 and the second sliding block 7 respectively drive the third sliding block 10 and the fourth sliding block 11 to slide along the fixed sliding rails on the two sides until the first sliding block 6 and the second sliding block 7 respectively reach the corresponding positioning groove positions, the sliding blocks are driven to move towards the tail ends of the positioning grooves under the action of the return tension of the return springs 14 until the sliding blocks move to the tail ends of the positioning grooves, and at the moment, the sliding plate 1 returns to the first position and is located in the same horizontal plane with the fixed plate 2.

It should be noted that the structure of the planar orbital transfer push-pull blackboard in the present embodiment is also applicable to the following structural forms of blackboards, for example:

the blackboard includes: two fixed plates 2, a sliding plate 1 and a sliding component; the two fixing plates 2 are arranged on two sides of the blackboard, and an electronic display screen is arranged in the middle of the two fixing plates 2; the sliding plate 1 is arranged between the two fixed plates 2 and in front of the electronic display screen; when the sliding plate 1 is located at the first position, the electronic display screen can be completely shielded and is located in the same horizontal plane with the fixed plate 2, and at the moment, the fixed plate 2 and the sliding plate 1 form a complete and continuous blackboard surface; when the electronic screen is needed to be used, the sliding plate 1 can slide to the left (right) side of the blackboard through the sliding component; when the sliding plate 1 slides to the left (right) side limit position, the electronic display screen can be completely exposed.

Or,

the blackboard includes: a fixed plate 2, a sliding plate 1 and sliding components; one fixing plate 2 is arranged on one side of the blackboard, and an electronic display screen is arranged on the other side of the blackboard; the sliding plate 1 is arranged in front of the electronic display screen; when the sliding plate 1 is located at the first position, the electronic display screen can be completely shielded and is located in the same horizontal plane with the fixed plate 2, and at the moment, the fixed plate 2 and the sliding plate 1 form a complete and continuous blackboard surface; when the electronic screen is needed to be used, the sliding plate 1 can slide towards the fixed plate 2 side through the sliding assembly; when the sliding plate 1 slides to the limit position, the electronic display screen can be completely exposed.

EXAMPLE III

In the embodiment, an automatic push-pull assembly is added on the basis of the first embodiment or the second embodiment; the blackboard in the first embodiment is connected to the automatic push-pull unit as an example.

The automatic push-pull assembly includes: the driving part is connected with the transmission part, and the transmission part is connected with the sliding assembly;

as shown in fig. 7, the transmission unit includes: a driving pulley 23, a driven pulley 24, and a conveyor belt 25 disposed between the driving pulley 23 and the driven pulley 24. In order to ensure that the belt does not slip in the running process and improve the transmission precision, the driving wheel 23 and the driven wheel 24 both adopt synchronous wheels, and the conveying belt 25 adopts a synchronous belt.

In other embodiments, tension wheels are added to the belt to prevent the belt from loosening.

The synchronous motor 35 is connected with the driving wheel 23 through a coupling 34, and the driving wheel 23 drives the driven wheel 24 to rotate through the conveyor belt 25. The driving wheel 23 and the driven wheel 24 are both fixed on the end surface of the sliding assembly through a bearing seat 36.

The conveyor belt 25 is connected with a third connecting piece 27 through a conveyor belt buckle 26, and the third connecting piece 27 is connected with the first sliding block 6 or the second sliding block 7.

The third connecting piece 27 is arranged on one side of the sliding block, which is far away from the edge of the blackboard, so that the sliding plate is guaranteed to be pushed by the third connecting piece 27 when being opened, and the first sliding block 6 or the second sliding block 7 can slide out of the positioning groove under the action of the pushing force.

As shown in fig. 8, the driving unit includes: control buttons, a controller 30, a driver 31, a switching power supply 32, a travel switch, and a synchronous motor 35; the controller 30 controls the switching power supply 32 to supply power to the driver 31 according to the received instruction, and the driver 31 is connected with the synchronous motor 35 through the transmission shaft 33 to drive the synchronous motor 35 to operate; couplings 34 are provided at both ends of the synchronous motor 35. Travel switches are arranged at two ends of the maximum sliding range of the sliding plate, and the synchronous motor 35 stops running after the first sliding block 6 or the second sliding block 7 contacts the travel switches.

The controller 30, the driver 31, the switching power supply 32 and the synchronous motor 35 are all arranged on the back of the blackboard, the synchronous motor 35 is fixed on the back of the blackboard through a bearing seat 36, and the driver 31 is connected with the synchronous motor 35 through a transmission shaft 33.

Taking the third connecting piece 27 connected to the first slider as an example, when the electronic screen needs to be used, the control button is pressed, the controller 30 receives the opening signal and then controls the switching power supply 32 to supply power to the driver 31, the driver 31 sends a starting instruction to the synchronous motor 35, the synchronous motor 35 drives the driving wheel 23 on the output shaft to drive the synchronous belt and the driven wheel 24 to operate, the third connecting piece 27 on the synchronous belt pushes the first slider 6 and the third slider 10 to move relatively, so that the first slider 6 slides out of the positioning groove and enters the position-shifted slide rail, meanwhile, the first slider 6 pushes the sliding plate to move forward, and the second slider 7 also slides out of the positioning groove and enters the position-shifted slide rail; after the sliding blocks enter the displacement sliding rails, the synchronous belt rotates to drive the first sliding block 6 and the second sliding block 7 to slide in the first displacement sliding rail 4, and the first sliding block 6 and the second sliding block 7 drive the third sliding block 10 and the fourth sliding block 11 to slide along the fixed sliding rails on the two sides. When the sliding plate reaches the preset position, the second sliding block touches the travel switch, so that the synchronous motor stops running to complete the starting action.

When the sliding plate 1 needs to be closed, the control button is pressed, the controller 30 receives the control signal and then controls the switching power supply 32 to supply power to the driver 31, the driver 31 sends a starting instruction to the synchronous motor 35, and the synchronous motor 35 drives the driving wheel 23 on the output shaft to drive the synchronous belt and the driven wheel 24 to reversely rotate; the third connecting piece 27 on the synchronous belt pulls the first slider 6 and the second slider 7 to move towards the direction of closing the sliding plate, when the first slider 6 and the second slider 7 reach the corresponding positioning groove positions, the sliders are driven to move towards the tail ends of the positioning grooves under the action of the return tension of the return spring 14 until the sliders move to the tail ends of the positioning grooves, and when the sliding plate reaches a preset position, the first slider of the sliding plate touches the travel switch, so that the synchronous motor 35 stops operating, and the closing action is completed. At this time, the sliding plate 1 returns to the first position and is located in the same horizontal plane as the fixed plate 2.

Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.

Claims (10)

1. A planar orbital transfer push-pull blackboard comprising: at least one fixed plate, at least one sliding plate and a sliding assembly; characterized in that the sliding assembly comprises: the sliding device comprises at least one group of first sliding piece and second sliding piece which are movably connected, a deflection sliding part for bearing the sliding of the first sliding piece and a fixed sliding part for bearing the sliding of the second sliding piece; a positioning groove is arranged at the set position of the deflection sliding part, and when the first sliding part slides into the positioning groove, the sliding plate and the fixed plate are positioned in the same horizontal plane; the fixed sliding part and the displacement sliding part are vertically arranged, and the sliding assembly is arranged on the back of the blackboard to form a hidden sliding assembly.

2. A planar orbital transfer push-pull blackboard according to claim 1 wherein springs are connected between said first and second movably connected sliders.

3. The planar track-changing push-pull blackboard according to claim 1, wherein the fixed sliding part includes two fixed sliding rails, the fixed sliding rails are respectively disposed on both sides of the position-changing sliding part, and the fixed sliding rails are perpendicular to the plane of the position-changing sliding part.

4. A planar track-changing push-pull blackboard according to claim 3, wherein the shift sliding part includes a shift sliding rail, the shift sliding rail is provided with a first positioning groove and a second positioning groove at the set positions, respectively, and the first positioning groove and the second positioning groove are located on different horizontal planes.

5. A planar orbital transfer push-pull blackboard according to claim 4, wherein said sliding assembly comprises two sets of first and second slides movably connected, respectively: the first sliding block is movably connected with the third sliding block, and the second sliding block is movably connected with the fourth sliding block;

the first sliding block and the second sliding block respectively slide in the deflection sliding rails, wherein a pulley of the first sliding block slides along a plane where the first positioning groove is located; the pulley of the second sliding block slides along the plane where the second positioning groove is located; when the first slide block enters the first positioning groove, the second slide block enters the second positioning groove, and at the moment, the sliding plate and the fixed plate are positioned in the same horizontal plane.

6. A planar track-changing push-pull blackboard according to claim 3, characterised in that the shift sliding part includes a first shift sliding rail and a second shift sliding rail, each shift sliding rail is provided with a positioning slot at a set position;

further, the air conditioner is provided with a fan,

the sliding assembly comprises two groups of first sliding parts and second sliding parts which are movably connected, and the two groups of first sliding parts and the second sliding parts are respectively as follows: the first sliding block is movably connected with the third sliding block, and the second sliding block is movably connected with the fourth sliding block;

the first sliding block and the second sliding block respectively slide in different displacement sliding rails, when the first sliding block enters the first positioning groove of the displacement sliding rail where the first sliding block is located, the second sliding block also enters the second positioning groove of the displacement sliding rail where the second sliding block is located, and at the moment, the sliding plate and the fixed plate are located in the same horizontal plane.

7. A planar orbital transfer push-pull blackboard according to claim 1, further comprising: an automatic push-pull assembly; the automatic push-pull assembly includes: the driving part is connected with the transmission part, and the transmission part is connected with the first sliding part; the automatic push-pull assembly drives the first sliding piece connected with the automatic push-pull assembly to move, and the sliding plate is automatically opened and closed.

8. A planar orbital transfer push-pull blackboard according to claim 7, wherein said transmission portion comprises: the conveying belt is arranged between the driving wheel and the driven wheel; a third connecting piece is fixed at the set position of the conveyor belt and is connected with the first sliding piece;

further, the air conditioner is provided with a fan,

and the driving wheel and the driven wheel are fixed on the end face where the sliding assembly is located through a bearing seat.

9. A planar orbital transfer push-pull blackboard according to claim 7, wherein said driving portion includes: a controller, a driver and a synchronous motor; the controller controls whether to provide power for a driver according to the received instruction, and the driver is connected with the synchronous motor;

further, the air conditioner is provided with a fan,

the driving part further includes: travel switches arranged at both ends of the maximum sliding range of the sliding plate; after the first sliding piece contacts the travel switch, the synchronous motor stops running.

10. A planar orbital transfer push-pull blackboard according to claim 4 or 6, wherein said first and/or second positioning grooves are structured so as to comprise: the first limiting plate is connected with the first displacement slide rail or the second displacement slide rail, and the second limiting plate is connected with the first limiting plate; the joint of the first limiting plate and the first displacement slide rail or the second displacement slide rail is in smooth transition; the joint of the first limiting plate and the second limiting plate is in smooth transition;

or,

the structure of the first positioning groove and/or the second positioning groove comprises: the fourth limiting plate and the fifth limiting plate are connected with the first displacement slide rail or the second displacement slide rail, and the arc limiting plates are respectively connected with the fourth limiting plate and the fifth limiting plate; and the joints of the fourth limiting plate and the fifth limiting plate and the first displacement slide rail or the second displacement slide rail are in smooth transition.