CN212938883U

CN212938883U - Electronic technology teaching demonstration device

Info

Publication number: CN212938883U
Application number: CN202020779094.8U
Authority: CN
Inventors: 文平
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2021-04-13
Anticipated expiration: 2030-05-12

Abstract

The utility model provides an electronic technology teaching presentation device. The electronic technology teaching demonstration device comprises a workbench; the four first round rods are fixedly arranged at the bottom of the workbench and distributed in a rectangular array; the four sleeves are respectively sleeved on the four first round rods in a sliding manner; the two mounting bars are arranged below the workbench, and two ends of each mounting bar are fixedly connected with the corresponding sleeve; the threaded rod is rotatably arranged on the two mounting strips; two articulated rods, two the articulated rod articulates respectively on two installation pieces, and two the articulated rod is articulated mutually. The utility model provides a pair of electron technology teaching presentation device has convenient operation, has improved suitability, the manifold advantage of function.

Description

Electronic technology teaching demonstration device

Technical Field

The utility model relates to a teaching technical field especially relates to an electron technology teaching presentation device.

Background

Electronic technology is science for solving practical problems by using electronic components to design and manufacture a circuit with a certain specific function according to the principle of electronics, electronic teaching is very common at present, and more teachers adopt a projector and a projection cloth to teach so as to enable students to vividly understand, learn and know various electronic theory technologies and know the functions of electronic components and the connection relation among different electronic components.

But current teaching presentation device, the function is more single, and the projection cloth is fixed on the wall again, and inconvenient removal, supporting seat generally fix in the desk bottom, can't come to carry out altitude mixture control to teaching presentation device according to teacher's height, leads to some teacher to give lessons inconvenient.

Therefore, there is a need to provide a new electronic teaching demonstration device to solve the above-mentioned technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a convenient operation, improved suitability, manifold electron technique teaching presentation device of function.

In order to solve the technical problem, the utility model provides a pair of electron technology teaching presentation device includes: a work table; the four first round rods are fixedly arranged at the bottom of the workbench and distributed in a rectangular array; the four sleeves are respectively sleeved on the four first round rods in a sliding manner; the two mounting bars are arranged below the workbench, and two ends of each mounting bar are fixedly connected with the corresponding sleeve; the threaded rod is rotatably arranged on the two mounting strips; the two mounting blocks are mounted on the threaded rod in a threaded manner; the two hinge rods are respectively hinged on the two mounting blocks and are hinged with each other; the sliding groove is formed in the bottom of the workbench; the sliding rod is arranged in the sliding groove, and two ends of the sliding rod are fixedly connected with the inner walls of two sides of the sliding groove respectively; the two sliding blocks are arranged on the sliding rod in a sliding mode, and the top ends of the two hinged rods are hinged to the corresponding sliding blocks; the rectangular plate is fixedly arranged at the top of the workbench; the blackboard is fixedly arranged on the rectangular plate; the display screen is fixedly arranged on the rectangular plate; the top plate is fixedly arranged on the top of the rectangular plate; the mounting groove is formed in the bottom of the top plate; the rotating rod is rotatably arranged in the mounting groove; the gear is fixedly sleeved on the rotating rod; a timing belt wound around the gear; the projection cloth is fixedly wound on the rotating rod; and the fixed rod is fixedly arranged on the projection cloth.

Preferably, a first groove is formed in the inner wall of the top of the mounting groove, a pressing rod is slidably mounted on the inner wall of the first groove, the bottom end of the pressing rod extends into the mounting groove and is in contact with the synchronous belt, a spring is fixedly mounted on the inner wall of the top of the mounting groove, and the bottom end of the spring is fixedly connected with the pressing rod.

Preferably, a sliding hole is formed in the sliding block, and the inner wall of the sliding hole is in sliding connection with the sliding rod.

Preferably, a second groove is formed in the top end of the sleeve, and the first round rod is slidably mounted in the second groove.

Preferably, threaded holes are formed in the outer wall of one side of each of the two mounting blocks, two sections of external threads with opposite rotating directions are formed in the outer wall of the threaded rod, and the threaded rod penetrates through the two threaded holes and is connected with the inner walls of the two threaded holes in a rotating mode.

Preferably, the one end fixed mounting of threaded rod has the handle, telescopic bottom fixed mounting has the universal wheel.

Compared with the prior art, the utility model provides a pair of electronic technology teaching presentation device has following beneficial effect:

the universal wheel of sleeve bottom can make the convenient removal of teaching presentation device, clockwise rotation handle on the threaded rod, can make the workstation rise to, handle on the counter-clockwise rotation threaded rod on the contrary, can make the workstation descend, thereby adjust teaching presentation device's altitude problem according to the different height of mr, can lay projection cloth down when going up class and teach, the time spent also can be retrieved projection cloth, make things convenient for students' study, can use the display screen to closely watch, use the blackboard to draw, increase the understanding to electronic technology.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of an electronic teaching demonstration apparatus provided in the present invention;

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

FIG. 3 is a left side view of the gear shown in FIG. 1;

FIG. 4 is a top view of the mounting bar shown in FIG. 1;

FIG. 5 is a front view of the projection cloth of FIG. 1;

reference numbers in the figures: 1. a work table; 2. a first round bar; 3. a sleeve; 4. mounting a bar; 5. a threaded rod; 6. mounting blocks; 7. a hinged lever; 8. a sliding groove; 9. a slide bar; 10. a slider; 11. a rectangular plate; 12. a blackboard; 13. a display screen; 14. a top plate; 15. mounting grooves; 16. rotating the rod; 17. a gear; 18. a synchronous belt; 19. a projection cloth; 20. fixing the rod; 21. a spring; 22. a pressure lever.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5 in combination, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of an electronic teaching demonstration apparatus according to the present invention; FIG. 2 is an enlarged view of portion A of FIG. 1; FIG. 3 is a left side view of the gear shown in FIG. 1; FIG. 4 is a top view of the mounting bar shown in FIG. 1; fig. 5 is a front view of the projection cloth shown in fig. 1. An electronic technology teaching presentation device comprising: a work table 1; the four first round rods 2 are all fixedly arranged at the bottom of the workbench 1, and the four first round rods 2 are distributed in a rectangular array; the four sleeves 3 are respectively sleeved on the four first round rods 2 in a sliding manner; the two mounting bars 4 are arranged below the workbench 1, and two ends of each mounting bar 4 are fixedly connected with the corresponding sleeve 3; the threaded rod 5 is rotatably arranged on the two mounting strips 4; the two mounting blocks 6 are mounted on the threaded rod 5 in a threaded manner; the two hinge rods 7 are respectively hinged on the two mounting blocks 6, and the two hinge rods 7 are hinged with each other; the sliding groove 8 is formed in the bottom of the workbench 1, and the sliding groove 8 is formed in the bottom of the workbench 1; the sliding rod 9 is arranged in the sliding groove 8, and two ends of the sliding rod 9 are fixedly connected with the inner walls of two sides of the sliding groove 8 respectively; the two sliding blocks 10 are arranged on the sliding rod 9 in a sliding mode, and the top ends of the two hinged rods 7 are hinged to the corresponding sliding blocks 10; the rectangular plate 11 is fixedly arranged at the top of the workbench 1; the blackboard 12 is fixedly arranged on the rectangular plate 11; the display screen 13 is fixedly arranged on the rectangular plate 11; the top plate 14, the said top plate 14 is fixedly mounted on the top of the said rectangular plate 11; the mounting groove 15 is formed in the bottom of the top plate 14; the rotating rod 16 is rotatably arranged in the mounting groove 15; the gear 17 is fixedly sleeved on the rotating rod 16; a timing belt 18, the timing belt 18 being wound around the gear 17; the projection cloth 19 is fixedly wound on the rotating rod 16; and the fixing rod 20 is fixedly arranged on the projection cloth 19.

First recess has been seted up on the top inner wall of mounting groove 15, slidable mounting has depression bar 22 on the inner wall of first recess, depression bar 22's bottom extends to in the mounting groove 15 and with synchronous belt 18 contacts, fixed mounting has spring 21 on the top inner wall of mounting groove 15, spring 21's bottom with depression bar 22 fixed connection.

The sliding block 10 is provided with a sliding hole, and the inner wall of the sliding hole is connected with the sliding rod 9 in a sliding manner.

A second groove is formed in the top end of the sleeve 3, and the first round rod 2 is slidably mounted in the second groove.

Two all seted up threaded hole on one side outer wall of installation piece 6, set up two sections external screw threads that revolve to opposite on the outer wall of threaded rod 5, threaded rod 5 runs through two the threaded hole and with two the inner wall of threaded hole closes soon and is connected.

The one end fixed mounting of threaded rod 5 has the handle, the bottom fixed mounting of sleeve 3 has the universal wheel.

The utility model provides a pair of electron technology teaching presentation device's theory of operation as follows:

the two mounting blocks 6 can move oppositely by clockwise rotating the handle on the threaded rod 5, so that the two hinge rods 7 rotate, the included angles between the two hinge rods 7 and the threaded rod 5 are increased, the top ends of the two hinge rods 7 push the workbench 1 to rise, the four first round rods 2 play a stabilizing role, and the handle on the threaded rod 5 is rotated anticlockwise to rotate the two hinge rods 7, so that the included angles between the two hinge rods 7 and the threaded rod 5 are decreased, and the workbench 1 can descend;

clockwise pulling synchronous belt 18 rotates, can drive gear 17's rotation, gear 17's rotation can drive dwang 16 and rotate, make the 19 release of projection cloth of winding on dwang 16, fixed mounting can be because the relation of weight is to descending on projection cloth 19 dead lever 20, play the effect of stabilizing projection cloth 19, because spring 21's effect, make depression bar 22 give 18 a pressure of synchronous belt, make synchronous belt 18 can not break away from gear 17, play limiting displacement, counter-clockwise pulling synchronous belt 18 rotates on the contrary, drive gear 17's rotation, make dwang 16 follow gear 17 and rotate, the projection cloth 19 of winding in dwang 16 is retrieved with dwang 16.

the universal wheel of 3 bottoms on the sleeve can make the convenient removal of teaching presentation device, clockwise rotation handle on the threaded rod 5, can make 1 rising of workstation, handle on the counter-clockwise rotation threaded rod 5 on the contrary, can make 1 decline of workstation, thereby adjust teaching presentation device's altitude problem according to the height that the mr is different, can put down projection cloth 19 and impart knowledge to students when going to school, the time spent also can be retrieved projection cloth 19, make things convenient for students' study, can use display screen 13 to closely watch, use blackboard 12 to draw, increase the understanding to electronic technology.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. An electronic technology teaching presentation device, comprising:

a work table;

the four first round rods are fixedly arranged at the bottom of the workbench and distributed in a rectangular array;

the four sleeves are respectively sleeved on the four first round rods in a sliding manner;

the two mounting bars are arranged below the workbench, and two ends of each mounting bar are fixedly connected with the corresponding sleeve;

the threaded rod is rotatably arranged on the two mounting strips;

the two mounting blocks are mounted on the threaded rod in a threaded manner;

the two hinge rods are respectively hinged on the two mounting blocks and are hinged with each other;

the sliding groove is formed in the bottom of the workbench;

the sliding rod is arranged in the sliding groove, and two ends of the sliding rod are fixedly connected with the inner walls of two sides of the sliding groove respectively;

the two sliding blocks are arranged on the sliding rod in a sliding mode, and the top ends of the two hinged rods are hinged to the corresponding sliding blocks;

the rectangular plate is fixedly arranged at the top of the workbench;

the blackboard is fixedly arranged on the rectangular plate;

the display screen is fixedly arranged on the rectangular plate;

the top plate is fixedly arranged on the top of the rectangular plate;

the mounting groove is formed in the bottom of the top plate;

the rotating rod is rotatably arranged in the mounting groove;

the gear is fixedly sleeved on the rotating rod;

a timing belt wound around the gear;

the projection cloth is fixedly wound on the rotating rod;

and the fixed rod is fixedly arranged on the projection cloth.

2. The electronic technology teaching demonstration device according to claim 1, wherein a first groove is formed in the inner wall of the top of the mounting groove, a pressing rod is slidably mounted on the inner wall of the first groove, the bottom end of the pressing rod extends into the mounting groove and contacts with the synchronous belt, a spring is fixedly mounted on the inner wall of the top of the mounting groove, and the bottom end of the spring is fixedly connected with the pressing rod.

3. The electronic technology teaching demonstration device according to claim 1, wherein the slide block is provided with a slide hole, and an inner wall of the slide hole is slidably connected with the slide rod.

4. The electronic technology teaching demonstration device according to claim 1, wherein a second groove is formed at the top end of the sleeve, and the first round bar is slidably mounted in the second groove.

5. The electronic technology teaching demonstration device according to claim 1, wherein threaded holes are formed in the outer wall of one side of each of the two mounting blocks, two sections of external threads with opposite rotation directions are formed in the outer wall of the threaded rod, and the threaded rod penetrates through the two threaded holes and is connected with the inner walls of the two threaded holes in a screwing mode.

6. The electronic technology teaching demonstration device of claim 1 wherein a handle is fixedly mounted at one end of the threaded rod and a universal wheel is fixedly mounted at the bottom end of the sleeve.