CN209999955U

CN209999955U - push-pull blackboard for teaching

Info

Publication number: CN209999955U
Application number: CN201920267290.4U
Authority: CN
Inventors: 王丽莎
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-04
Filing date: 2019-03-04
Publication date: 2020-01-31
Anticipated expiration: 2029-03-04

Abstract

The utility model relates to a teaching aid technical field just discloses blackboard for plug-type teaching, including the frame, the middle part fixed mounting of frame inner chamber has the baffle, the positive fixed mounting of frame has the limiting plate, the quantity of limiting plate is two, two the equal fixed mounting in side between the limiting plate has the telescopic link, the front of frame is from last to having the positive second blackboard frame and the blackboard frame of limiting plate to fixed mounting in proper order down.

Description

push-pull blackboard for teaching

Technical Field

The utility model relates to a teaching aid technical field specifically is kinds of blackboard for plug-type teaching.

Background

The teaching is kinds of human unique talent culture activities composed of teacher's teaching and student's learning, through which the teacher purposefully, planningly and organically guides students to study actively and study and accelerate to master basic knowledge and basic skill of cultural science, promotes comprehensive improvement of students in multiple aspects of quality, makes them become people needed by society, the teaching is to teach students the scientific knowledge of system, train students to form basic skill, develop students ' intelligence and ability, cultivate students have firm correct political direction, dialectical materialistic world view and codepositic moral quality, make students develop normally and grow healthily.

The blackboard is not particularly specified to be a black board, is traditionally planes capable of being repeatedly written, is hard in board surface and is mainly used for teaching, but the current blackboard is a board fixed on a wall surface and only capable of writing, but cannot play the function of dynamic teaching materials, so that the teaching mode is single .

According to not enough of present blackboard function, current publication number CN204398651U discloses blackboard educational devices, the utility model discloses set up pull-out blackboard, electronic display screen, the teacher not only can write the teaching on the blackboard like this, when needs broadcast dynamic teaching content, can be with the teaching content input and show at electronic display screen through the USB interface, make the teaching mode abundanter, improve the teaching effect, because electronic display screen's cost of manufacture is higher, at present replaced gradually by the projecting apparatus, just in this utility model middle pull-out blackboard, the more variable scope of blackboard is less, it is less to record literal content, though nimble nevertheless impracticable, the process of while pull more becomes the blackboard, often hardly control the rate of movement, lead to often appearing the collision bounce between blackboard and the frame, cause the deformation of blackboard and frame, simultaneously because in order to realize the pull, make the blackboard appear the skew easily writing the process, the blackboard has increased the blackboard degree of difficulty, therefore need urgently to provide practicality strong, anticollision and drawing type that the nature is good.

Disclosure of Invention

The utility model provides an blackboard for plug-type teaching, it is strong to possess the practicality, anticollision and the good advantage of steadiness, solved just about this utility model well pull formula blackboard, the more variable scope of blackboard is less, it is less to record literal content, though nimble but impracticable, the process of while pull more becomes the blackboard, often hard control rate of removal, lead to the collision rebound often appearing between blackboard and the frame, cause the deformation of blackboard and frame, simultaneously because in order to realize the pull, make the blackboard appear squinting writing the process easily, the problem of the degree of difficulty of writing has been increased.

The utility model provides a kinds of blackboard for plug-type teaching, including the frame, the middle part fixed mounting of frame inner chamber has the baffle, the positive fixed mounting of frame has the limiting plate, the quantity of limiting plate is two, two equal fixed mounting in side between the limiting plate has the telescopic link, the front of frame is from last to having the positive second blackboard frame and the blackboard frame of being located the limiting plate in proper order down fixed mounting, the equal fixed mounting in inside of blackboard frame and second blackboard frame has the blackboard, the bottom surface fixed mounting of second blackboard frame has the guide rail that is located between two limiting plates, the quantity of guide rail is two, two the equal fixed mounting in side of guide rail has the carriage release lever, two movable mounting has the travelling wheel between the travelling wheel, the side swing joint that the travelling wheel was kept away from to the travelling wheel is kept away from to the other end of limiting plate and travelling wheel, the top surface fixed mounting of frame has the dead lever, the quantity of dead lever is two the top of dead lever all fixed cover of being equipped with the clamping bar, two the top of dead lever is equipped with the clamping bar, two fixed mounting has the power case between the clamping bar, the rear face of the rear end of the carriage is equipped with the rear end of the carriage, the rear end of the rear.

Preferably, the outer part of the telescopic rod is movably sleeved with a connecting spring, and two ends of the connecting spring are respectively and fixedly connected with two ends of the outer surface of the telescopic rod.

Preferably, the bottom of the fixed rod is fixedly sleeved with a stable sleeve block, and the bottom surface of the stable sleeve block is fixedly connected with the top surface of the outer frame.

Preferably, the cross-sectional area of the moving plate is larger than that of the stable sleeve plate, and the cross-sectional area of the stable sleeve plate is larger than that of the buffer plate.

Preferably, the number of the force unloading springs is nine, and a plurality of the force unloading springs are uniformly distributed between the top surface of the movable plate and the top surface of the inner cavity of the force unloading box.

Preferably, another end of the fastening screw rod extends to the outside of the clamping loop bar and is sleeved with a fixing nut through threads, and the front face of the clamping loop bar is provided with a fixing groove matched with the fastening screw rod.

Preferably, the inner cavity fixed mounting of joint loop bar has the hindrance board, the outside that runs through the hindrance board and extend to the joint loop bar of joint pole.

Preferably, the outside activity cover of joint pole is equipped with buffer spring, buffer spring's both ends respectively with hinder the side fixed connection between board and the push rod.

Preferably, the bottom of the roller extends to the outside of the second blackboard frame and is in friction connection with the inner wall of the limiting groove, and the left end and the right end of the rolling rod are fixedly provided with the buffer sleeve blocks.

The utility model discloses possess following beneficial effect:

1. this blackboard for plug-type teaching, through setting up the blackboard into four parts, increased the device's flexibility, utilize the setting of th blackboard frame and second blackboard frame simultaneously for this blackboard can stimulate from top to bottom, and the user can be through writing on th blackboard frame, more changes into second blackboard frame, has made things convenient for the area that mr and student can make full use of blackboard, very big again when guaranteeing the flexibility of pull formula blackboard the practicality of this blackboard.

2. This blackboard for plug-type teaching through the cooperation that sets up buffer board and movable plate for unload the power spring and can unload th blackboard frame and second blackboard frame and remove the impact force of in-process to the outer frame, avoided frame and th blackboard frame, second blackboard frame collision rebound to appear, cause the problem of the deformation of blackboard and frame, very big assurance the device's security.

3. This blackboard is used in plug-type teaching, through removing fastening screw, it pushes away the joint pole to drive the push rod, make the joint pole can stabilize the second blackboard frame, guaranteed to remove behind the second blackboard frame, the second blackboard frame can stabilize the inside at the outer frame, avoided the second blackboard frame to cause the problem that the gliding hinders mr to write because of gravity reason, very big increase the device's stability, very big assurance that provides for the stable use of this blackboard, the security of this blackboard has been increased.

Drawings

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

FIG. 2 is a schematic view of the external structure of FIG. 2 according to the present invention;

FIG. 3 is a schematic view of the internal structure of the local structure of the present invention;

fig. 4 is a schematic view of the connection structure between the th blackboard frame and the second blackboard frame of the present invention;

FIG. 5 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;

FIG. 6 is an enlarged view of the structure at B in FIG. 4 according to the present invention;

FIG. 7 is a schematic view of the structure of FIG. 1 at C according to the present invention;

fig. 8 is a schematic view of the internal structure of fig. 7 according to the present invention.

In the figure, the blackboard comprises a frame 1, an outer frame 2, a th blackboard frame, a second blackboard frame 3, a second blackboard frame 4, a blackboard 5, a limiting groove 6, a partition board 7, a fixing rod 8, a clamping rod 9, a force unloading box 10, a stabilizing sleeve plate 11, a buffer plate 12, a moving plate 13, a force unloading spring 14, a roller 15, a rolling rod 16, a transverse plate 17, a guide rail 18, a moving rod 18, a moving wheel 19, a moving wheel 20, a telescopic rod 21, a connecting spring 22, a limiting plate 23, a clamping sleeve rod 24, a push rod 25, a push plate 26, a fastening screw rod 27, a clamping rod 28, a blocking plate 29, a buffer spring 30 and a fixing groove.

Detailed Description

The technical solution 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 , but not all embodiments.

Please refer to fig. 1-8, a blackboard for push-pull teaching, including outer frame 1, a partition plate 6 is fixedly installed in the middle of an inner cavity of outer frame 1, limiting plates 22 are fixedly installed on the front of outer frame 1, the number of limiting plates 22 is two, telescopic rods 20 are fixedly installed on the sides between two limiting plates 22, a connecting spring 21 is installed on the outer movable sleeve of telescopic rod 20, the two ends of connecting spring 21 are respectively fixedly connected with the two ends of the outer surface of telescopic rod 20, the arrangement of connecting spring 21 is utilized, the left and right deviation of moving wheel 19 caused in the rolling process is reduced, the abrasion degree between moving wheel 19 and guide rail 17 is reduced, the front of outer frame 1 is sequentially and fixedly installed with a second black plate frame 3 and a third black plate frame 2 which are located on the front of limiting plate 22, a moving wheel 19 is fixedly installed inside of second black plate frame 2 and second black plate 3, guide rail 17 which is located between two limiting plates 22 is fixedly installed on the bottom surface of second black plate 3, the sliding rod 17 is two guide rail 17, the sliding rod 18 is installed on the sliding rod 18, two sliding rods 18, moving rod 18 are movably installed between two sliding rod 35, a sliding rod 34, a sliding rod of sliding rod 7, the sliding rod 7, the sliding rod of sliding rod 7, the sliding rod is ensured, the sliding rod 13, the sliding rod of sliding rod, the sliding rod 21 is installed on the sliding rod, the sliding rod of sliding rod, the sliding rod 13, the sliding rod 21, the sliding rod of sliding rod 21 is installed on the sliding rod, the sliding rod of sliding rod, the sliding rod of sliding rod, the sliding rod is improved sliding rod, the sliding rod is improved sliding rod, the sliding rod of the sliding rod, the sliding rod is improved sliding rod, the sliding rod is improved sliding rod, the sliding rod is improved sliding rod, the sliding.

The during operation, write on blackboard 4 in blackboard frame 2 during the use, write after finishing writing, make blackboard frame 2 and second blackboard frame 3 switching position through pulling second blackboard frame 3, the switching process, through the cooperation that buffer board 11 will be given power to movable plate 12, unload power spring 13 again and can unload blackboard frame 2 and second blackboard frame 3 at the impact force that removes the in-process to frame 1, remove the completion back, through bulldozing push pedal 25, make the clamping rod 27 press from both sides the side of blackboard frame 2, at fixed fastening screw 26, can.

It is noted that, herein, relational terms such as , second, and the like are used solely to distinguish entities or operations from another entities or operations without necessarily requiring or implying any actual such relationship or order between such entities or operations, further, the terms "comprise," "include," or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

1, blackboard for push-pull type teaching, including frame (1), its characterized in that the middle part fixed mounting of frame (1) inner chamber has baffle (6), the front fixed mounting of frame (1) has limiting plate (22), the quantity of limiting plate (22) is two the equal fixed mounting in side between limiting plate (22) has telescopic link (20), the front of frame (1) is from last to having second blackboard frame (3) and second blackboard frame (2) that are located limiting plate (22) front fixed mounting under to, the fourth blackboard frame (2) and the equal fixed mounting in inside of second blackboard frame (3) have blackboard (4), the bottom surface fixed mounting of second blackboard frame (3) has guide rail (17) that is located between two limiting plate (22), the quantity of guide rail (17) is two, two the equal fixed mounting in side of guide rail (17) has movable rod (18), two movable pulley (19) is installed between movable rod (18), the other movable clamp rod (18) is equipped with movable clamp rod (3) and is equipped with movable clamp rod (35) and is equipped with the equal fixed clamp rod (24) and the fixed clamp rod (24), the fixed clamp rod (24) is equipped with the inner chamber (35) and the inner chamber (3), the fixed clamp rod (3) and the fixed clamp rod (3) is equipped with the equal fixed clamp rod (3) and the movable clamp rod (24), the two clamp rod (35) connect the baffle (24), the equal fixed clamp rod (3) and the movable clamp rod (3) and the two clamp rod (3) and the fixed clamp rod (3) and the two clamp rod (3) is equipped with the equal fixed clamp rod (3) and the movable clamp rod (3) and the right side of the two clamp rod (3) and the two clamp rod (3) connect the right side of the push rod (3) and the equal fixed clamp rod (3) and the push rod (3) and the two clamp rod (3) and the equal fixed clamp rod (3) and the two clamp rod (3) and the equal fixed mounting of the two clamp rod (3) are equipped with the equal fixed mounting of the bottom surface of the equal fixed mounting of the bottom surface of the push rod (3) and the push rod (35) and the push rod (3) and the two push rod (35) and the push rod (3) and the equal fixed mounting of the push rod (3) and.

2. The push-pull type blackboard for teaching according to claim 1, wherein the outside of the telescopic rod (20) is movably sleeved with a connecting spring (21), and two ends of the connecting spring (21) are respectively and fixedly connected with two ends of the outer surface of the telescopic rod (20).

3. The push-pull type blackboard for teaching as claimed in claim 1, wherein the bottom of the fixed rod (7) is fixedly sleeved with a stable sleeve block, and the bottom of the stable sleeve block is fixedly connected with the top of the outer frame (1).

4. A push-pull type blackboard for teaching purpose according to claim 1, wherein the cross-sectional area of the moving plate (12) is greater than that of the stable sleeve plate (10), and the cross-sectional area of the stable sleeve plate (10) is greater than that of the buffer plate (11).

5. The push-pull type blackboard for teaching according to claim 1, wherein the number of the force-releasing springs (13) is nine, and several force-releasing springs (13) are evenly distributed between the top surface of the moving plate (12) and the top surface of the inner cavity of the force-releasing box (9).

6. The push-pull type teaching blackboard according to claim 1, wherein the other end of the fastening screw (26) extends to the outside of the snap fit rod (23) and is sleeved with a fixing nut through threads, and the front of the snap fit rod (23) is provided with a fixing groove (30) matched with the fastening screw (26).

7. A push-pull type blackboard for teaching according to claim 1, wherein the inner cavity of the snap-fit sleeve rod (23) is fixedly provided with a blocking plate (28), and the snap-fit rod (27) penetrates through the blocking plate (28) and extends to the outside of the snap-fit sleeve rod (23).

8. The push-pull type blackboard for teaching according to claim 7, wherein the outside of the catch rod (27) is movably sleeved with a buffer spring (29), and both ends of the buffer spring (29) are respectively fixedly connected with the side surface between the block plate (28) and the push rod (24).

9. The push-pull type blackboard for teaching according to claim 1, wherein the bottom of the roller (14) extends to the outside of the second blackboard frame (3) and is in friction connection with the inner wall of the limit groove (5), and the left and right ends of the rolling rod (15) are both fixedly provided with buffer sleeve blocks.