CN112133140A - A sociology demonstration teaching device with teaching interactive structure - Google Patents

Abstract

The invention discloses a social demonstration teaching device with a teaching interaction structure, which comprises an installation frame, a support rod, an upper protection plate, a cleaning brush, an expression recovery plate and a clamping plate, wherein a fixed rod is connected to the lower screw of the installation frame, a universal wheel is installed at the bottom end of the fixed rod through a bolt, a gear rod is connected to the screw in the upper protection plate, a first circular gear is connected to the gear rod in a meshed mode, a second circular gear is connected to the first circular gear in a meshed mode, and the cleaning brush is connected to the first circular gear and the second circular gear through screws. This social demonstration teaching device with interactive structure of teaching is provided with the brush cleaner, and when taking in the supreme guard plate of lower guard plate upward movement, under the effect of wheel ratch, first circular gear can drive second circular gear and rotate simultaneously, combines this moment each brush cleaner can convenient and fast carry out the dust to touch display screen and clean the work, has effectively improved the use high efficiency of device.

Description

A sociology demonstration teaching device with teaching interactive structure

technical field

The invention relates to the technical field of sociology teaching, in particular to a sociology demonstration teaching device with a teaching interactive structure.

Background technique

Sociology is a discipline in social science. It takes human social life and its development as its research object. It uses scientific attitudes and various methods of actual social investigation to analyze social phenomena, social life, social relations and various social Observing, analyzing and researching problems, so as to reveal the process and laws of various social forms, social structures and social development in various historical stages of human beings, accumulate scientific knowledge for people to understand society and arrange social life, and help relevant social departments deal with it correctly. Social issues provide reference materials and scientific basis. Generally speaking, sociology is a comprehensive social science that studies the laws of social operation and coordinated development. During the teaching process, the multimedia teaching equipment gradually replaces the conventional blackboard, which facilitates the teaching demonstration work of sociology.

However, most of the sociology demonstration teaching devices have the following problems:

1. Because the knowledge points of sociology are relatively boring, the teaching demonstration process is mostly done by teachers using multimedia teaching equipment to write and explain, and at the same time combine students' reading and understanding of textbooks to carry out overall teaching, and because interest determines whether a student can learn well The key to a subject is that conventional sociology demonstration teaching devices cannot interact well with students, and thus cannot effectively improve students' interest in learning;

2. Since most of the existing sociology demonstration teaching devices use multimedia equipment for teaching, and multimedia equipment is a fragile and fragile item, and the multimedia equipment is placed in the process, the teaching device cannot perform stable protection work on it. Bad factors are easy to cause damage to multimedia equipment;

3. When teachers use the sociology demonstration teaching device composed of multimedia equipment for teaching work, a large amount of dust will be absorbed and contaminated on the display screen of the multimedia equipment. The teaching device cannot clean it in time and effectively, and too much dust will Bad influence on multimedia equipment.

Therefore, we propose a sociology demonstration teaching device with a teaching interactive structure in order to solve the problems raised above.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a sociology demonstration teaching device with a teaching interaction structure, so as to solve the problem that the sociology demonstration teaching device on the market cannot perform good interactive work with students and cannot interact with multimedia equipment proposed by the above-mentioned background technology. Carry out stable protection work, and cannot clean the screen in time and effectively to absorb the contaminated dust.

In order to achieve the above purpose, the present invention provides the following technical solutions: a sociology demonstration teaching device with a teaching interactive structure, comprising a mounting frame, a support rod, an upper protective plate, a cleaning brush, an expression recovery plate and a clamping plate, the installation A fixing rod is connected with the screw under the frame, and a universal wheel is installed on the bottom end bolt of the fixing rod, a first servo motor is welded and fixed in the fixing rod, and the output end of the first servo motor is rotatably connected with a threaded rod, and the thread is threaded. A support rod is movably connected to the rod, and a transmission belt is meshed and connected to the threaded rod. A second servo motor is welded and fixed on the mounting frame, and a fixed shaft is rotatably connected to the output end of the second servo motor, and the fixed shaft is welded on the fixed shaft. A coil is fixed, and a pulling wire is wound around the coil. The bottom end of the pulling wire is bolted on the limit block, and the limit block is screwed on the lower protective plate, and the lower protective plate is slidably connected in the upper protective plate. In addition, a connecting shaft is welded and fixed on the upper protective plate, a sliding groove is opened on the mounting frame, and a connecting shaft is slidably connected in the sliding groove, a gear rod is connected with a screw in the upper protective plate, and the gear rod is meshed with A first circular gear is connected, and the shaft of the first circular gear is connected in the upper protective plate, the first circular gear is meshed with a second circular gear, and the first circular gear and the second circular gear are connected The gears are all screwed with cleaning brushes, the bolts on the mounting frame are installed with multimedia equipment, and the bolts on the multimedia equipment are installed with touch display screens, the bolts in the lower protective plate are installed with small hydraulic cylinders, and the output of the small hydraulic cylinders The end is provided with a hydraulic rod, and the top of the hydraulic rod is screwed with a top block, the lower protective plate is screwed with a connecting plate, and the connecting plate is movably connected with a connecting rod, and the top of the connecting rod is screwed with an expression recovery board. , the connecting rod is screwed with a rubber rod, and the top end of the rubber rod is screwed on the connecting plate, a limit slot is set on the mounting frame, and a limit block is snapped and connected in the limit slot, and the mounting frame is The inner screw is connected with a rubber pad, and the top screw of the rubber pad is connected with a push rod, and the push rod is slidably connected in the mounting frame, the push rod is bolted with a connecting wire, and the connecting wire is slidably connected to the guide wheel, and The guide wheel screw is installed in the mounting frame, the top end of the connecting wire is bolted with a clamping plate, and the clamping plate is slidably connected in the limit groove, the clamping plate is screwed with a rubber block, and the rubber block is The end screw is connected in the limit slot.

Preferably, the fixing rods are symmetrically distributed on the left and right sides of the mounting frame, the central axis of the fixing rod and the central axis of the supporting rod are on the same vertical center line, and the fixed rods are equiangularly distributed with universal wheels.

Preferably, the threaded rod is fixed in the middle of the support rod, and the threaded rod and the support rod are threadedly connected, and the support rod and the fixed rod are in a snap-fit sliding connection, and the length of the fixed rod is greater than that of the support rod length.

Preferably, the pulling wire is fixed at the middle part of the limit block, the length of the limit block is equal to the width of the lower protective plate, and the cross section of the limit block is "L" shaped.

Preferably, the width of the lower fender is smaller than the width of the inner space of the upper fender, and gear rods are symmetrically distributed on the left and right sides of the upper fender, and the cross section of the upper fender and the lower fender are equal to each other. It is "U" shaped.

Preferably, the cleaning brushes are equiangularly distributed on the first circular gear and the second circular gear, and the first circular gear and the second circular gear are both axially connected on the lateral middle line of the lower protective plate, and clean The bottom face of the brush is in contact with the top face of the touch screen.

Preferably, the connecting rod and the connecting plate are hinged, and the connecting rods are symmetrically distributed on the upper and lower sides of the connecting plate, and the connecting rod and the expression recovery board correspond one by one, and the height of the top surface of the connecting rod is greater than that of the bottom of the top block The height of the end face, while the top block is semicircular.

Preferably, a push rod is slidably connected to the middle part of the limiting groove, and connecting lines are symmetrically distributed on the left and right sides of the push rod, and the connecting lines are in one-to-one correspondence with the guide wheels.

Preferably, the clamping plates are symmetrically distributed on the left and right sides of the limiting groove, a rubber block is fixed in the middle of the clamping plate, and the height of the top surface of the clamping plate is smaller than the height of the top surface of the limiting groove.

Compared with the prior art, the beneficial effects of the present invention are: the sociology demonstration teaching device with a teaching interactive structure;

(1) The device is provided with a cleaning brush. When the lower protective plate moves upward to the upper protective plate for storage, under the action of the gear rod, the first circular gear can drive the second circular gear to rotate at the same time. At this time, the combination of Each cleaning brush can easily and quickly clean the dust on the touch screen, which effectively improves the use efficiency of the device;

(2) The device is equipped with an expression response board. When students answer the questions on the touch screen, the system in the multimedia equipment will detect the answer, and the hydraulic rods on different small hydraulic cylinders can be controlled respectively according to the correctness or error of the answer. Drive the top block to push the connecting rod. At this time, combined with the different expression reply boards on the connecting rod, the students are reminded whether the answer is correct or incorrect, which can effectively improve the interaction between the teaching device and the students, and at the same time can enhance the fun of the classroom. adjust the classroom atmosphere;

(3) The device is provided with a clamping plate. When the lower protective plate is unfolded, the limit block under the lower protective plate falls into the limit groove. At this time, the limit block can squeeze the push rod to move downward, and the connecting line The guide wheel can drive the clamping plates on both sides to move to the middle at the same time, so that the limit block can be clamped and limited conveniently and quickly, and the stability of the placement of the lower protective plate can be ensured. At this time, the lower protective plate is combined with the upper protective plate. The multi-media equipment can be stably protected, and the variety of use of the device is increased.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the top view structure schematic diagram of the fixing rod of the present invention;

3 is a schematic diagram of the coil structure of the present invention;

Fig. 4 is the structure schematic diagram of the gear rod of the present invention;

5 is a schematic view of the structure of the cleaning brush of the present invention viewed from above;

Figure 6 is a schematic side view of the structure of the mounting frame of the present invention;

FIG. 7 is a schematic side view of the structure of the sliding groove of the present invention;

Figure 8 is a schematic side view of the structure of the rubber rod of the present invention;

9 is a schematic structural diagram of an expression reply board of the present invention;

FIG. 10 is a schematic diagram of the structure at A in FIG. 6 of the present invention.

In the figure: 1. Mounting frame; 2. Fixed rod; 3. Universal wheel; 4. The first servo motor; 5. Threaded rod; 6. Support rod; 7. Transmission belt; 8. The second servo motor; 9. Fixed Shaft; 10. Coil; 11. Pulling wire; 12. Lower protective plate; 13. Upper protective plate; 14. Connecting shaft; 15. Sliding slot; 16. Gear rod; 17. First circular gear; Two circular gears; 19, cleaning brush; 20, touch screen; 21, small hydraulic cylinder; 22, hydraulic rod; 23, top block; 24, connecting plate; 25, connecting rod; 26, expression reply board; 27, Rubber rod; 28, limit block; 29, limit slot; 30, push rod; 31, rubber pad; 32, connecting wire; 33, guide wheel; 34, clamping plate; 35, rubber block; 36, multimedia equipment .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-10, the present invention provides a technical solution: a sociology demonstration teaching device with a teaching interactive structure, comprising a mounting frame 1, a fixed rod 2, a universal wheel 3, a first servo motor 4, a threaded rod 5. Support rod 6, transmission belt 7, second servo motor 8, fixed shaft 9, coil 10, pulling wire 11, lower protective plate 12, upper protective plate 13, connecting shaft 14, sliding groove 15, gear rod 16, first A circular gear 17, a second circular gear 18, a cleaning brush 19, a touch screen display 20, a small hydraulic cylinder 21, a hydraulic rod 22, a top block 23, a connecting plate 24, a connecting rod 25, an expression recovery board 26, a rubber rod 27. Limit block 28, limit slot 29, push rod 30, rubber pad 31, connecting wire 32, guide wheel 33, clamping plate 34, rubber block 35 and multimedia equipment 36, the lower screw of the mounting frame 1 is connected with a fixing rod 2, and the bottom end bolt of the fixing rod 2 is installed with a universal wheel 3, the first servo motor 4 is welded and fixed in the fixing rod 2, and the output end of the first servo motor 4 is rotatably connected with a threaded rod 5, and the threaded rod 5 A support rod 6 is movably connected to the upper part, and a transmission belt 7 is meshed and connected to the threaded rod 5. A second servo motor 8 is welded and fixed on the mounting frame 1, and the output end of the second servo motor 8 is rotatably connected with a fixed shaft 9. The fixed shaft The coil 10 is welded and fixed on the 9, and the pull wire 11 is wound on the coil 10. The bottom end of the pull wire 11 is bolted on the limit block 28, and the limit block 28 is screwed on the lower protective plate 12, and the lower protective plate 12 is slidably connected in the upper protective plate 13, and the connecting shaft 14 is welded and fixed on the upper protective plate 13. The mounting frame 1 is provided with a sliding groove 15, and the connecting shaft 14 is slidably connected in the sliding groove 15. The gear rod 16 is connected with the screw, and the gear rod 16 is meshed with a first circular gear 17, and the first circular gear 17 is axially connected in the upper protective plate 13, and the first circular gear 17 is meshed and connected with a The second circular gear 18, and the first circular gear 17 and the second circular gear 18 are both screwed with a cleaning brush 19, the mounting frame 1 is bolted with a multimedia device 36, and the multimedia device 36 is bolted with touch Display screen 20, a small hydraulic cylinder 21 is installed with bolts in the lower protective plate 12, and a hydraulic rod 22 is provided at the output end of the small hydraulic cylinder 21, and the top of the hydraulic rod 22 is screwed with a top block 23, and the inner screw of the lower protective plate 12 A connecting plate 24 is connected, and a connecting rod 25 is movably connected to the connecting plate 24, and the top of the connecting rod 25 is screwed with an expression recovery plate 26, the connecting rod 25 is screwed with a rubber rod 27, and the top of the rubber rod 27 is screwed Connected to the connecting plate 24, the mounting frame 1 is provided with a limiting slot 29, and the limiting slot 29 is engaged with the limiting block 28, the mounting frame 1 is screwed with a rubber pad 31, and the top of the rubber pad 31 is screwed. There is a push rod 30, and the push rod 30 is slidably connected in the mounting frame 1, a connecting wire 32 is bolted on the push rod 30, and the connecting wire 32 is slidably connected to the guide wheel 33, and the guide wheel 33 is screwed. In the frame 1, the top end of the connecting wire 32 is bolted with a clamping plate 34, and the clamping plate 34 is slidably connected in the limiting groove 29. The clamping plate 34 is screwed with a rubber block 35, and the tail end of the rubber block 35 The screw is connected in the limiting groove 29 .

The fixed rod 2 is symmetrically distributed on the left and right sides of the mounting frame 1, and the central axis of the fixed rod 2 and the central axis of the support rod 6 are located on the same vertical center line, and the fixed rod 2 is equiangularly distributed with universal wheels 3, The stable working effect of the universal wheel 3 on the fixed rod 2 can be ensured, and the use efficiency of the device is improved.

The threaded rod 5 is fixed in the middle of the support rod 6, and the threaded rod 5 and the support rod 6 are connected by a threaded connection, and the support rod 6 and the fixed rod 2 are in a sliding connection by snapping, and the length of the fixed rod 2 is greater than The length of the support rod 6 can conveniently control the support rod 6 to perform stable movement on the fixed rod 2 .

The pulling wire 11 is fixed in the middle of the limit block 28, and the length of the limit block 28 is equal to the width of the lower protective plate 12, and the cross section of the limit block 28 is “L” shaped, which can ensure that the limit block 28 is in the lower Stability of the working state on the fender 12 .

The width of the lower fender 12 is smaller than the width of the inner space of the upper fender 13 , and the left and right sides of the upper fender 13 are symmetrically distributed with gear rods 16 , and the cross section of the upper fender 13 and the cross section of the lower fender 12 Both are in a "U" shape, which can ensure that the upper protective plate 13 and the lower protective plate 12 can stably protect the touch display screen 20 .

The cleaning brushes 19 are equiangularly distributed on the first circular gear 17 and the second circular gear 18, and the first circular gear 17 and the second circular gear 18 are both axially connected on the lateral middle line of the lower protective plate 12, and The bottom end surface of the cleaning brush 19 is in contact with the top end surface of the touch display screen 20 , which can ensure that the cleaning brush 19 can perform stable cleaning work on the touch display screen 20 and improve the use efficiency of the device.

The connecting rod 25 and the connecting plate 24 are hinged, and the connecting rods 25 are symmetrically distributed on the upper and lower sides of the connecting plate 24, and the connecting rod 25 corresponds to the expression recovery board 26 one-to-one, and the height of the top surface of the connecting rod 25 is greater than that of the top of the connecting rod 25. The height of the bottom end face of the block 23 and the semicircular shape of the top block 23 can ensure the stability of the connection state between the connecting rod 25 and the connecting plate 24, thereby facilitating the control of the interactive effect of subsequent teaching work.

The middle part of the limiting groove 29 is slidably connected with the push rod 30 , and the left and right sides of the push rod 30 are symmetrically distributed with connecting lines 32 , and the connecting lines 32 correspond to the guide wheels 33 one by one, which can ensure that the connecting lines 32 are in the guide wheel 33 . The stability of the work effect increases the diversity of the use of the device.

The clamping plates 34 are symmetrically distributed on the left and right sides of the limiting groove 29, and the middle part of the clamping plate 34 is fixed with a rubber block 35, and the height of the top surface of the clamping plate 34 is smaller than the height of the top surface of the limiting groove 29, which can be The stable working effect of the clamping plate 34 in the limiting groove 29 is ensured, and the use stability of the device is increased.

Working principle: Before using the sociology demonstration teaching device with a teaching interactive structure, it is necessary to check the overall condition of the device to make sure that it can work normally;

When the device starts to work, referring to Fig. 1 and Fig. 2, when the whole device needs to be moved, under the action of the first servo motor 4, combined with the transmission belt 7, the threaded rods 5 in the fixed rods 2 on both sides can be driven to the support rod. 6 simultaneously rotate, and then simultaneously drive the support rods 6 on both sides to move upward in the corresponding fixed rod 2 until the universal wheel 3 under the fixed rod 2 is in contact with the ground. In the same way, by rotating the threaded rod 5 in the opposite direction, the support rod 6 can be driven to move downward until the universal wheel 3 is separated from the ground. At this time, the stability of the overall placement state of the device can be ensured, thereby ensuring the stability of the subsequent teaching work. sex;

When the device needs to be used for sociology demonstration and teaching work, with reference to FIGS. 1 to 7 , the second servo motor 8 can drive the coil 10 to rotate through the fixed shaft 9 , and then can rewind the pulling wire 11 . Under the pulling action, the lower protective plate 12 on the limit block 28 can be driven to move upward to the upper protective plate 13 for storage. At this time, under the action of the gear rods 16 on both sides, the first circular gears 17 on both sides can be The second circular gear 18 is driven to rotate at the same time. At this time, the touch screen 20 on the multimedia device 36 can be cleaned conveniently and quickly in combination with each cleaning brush 19, and when the limit block 28 moves upward to the upper protective plate 13 At this time, the limit block 28 can push the upper protective plate 13 to move upward. At this time, under the action of the arc-shaped sliding groove 15 and the pulling action of the pulling wire 11, the upper protective plate 13 combined with the connecting shaft 14 can be in the sliding groove 15. Rotate outward, at this time, the upper protective plate 13 can drive the lower protective plate 12 to separate from the touch display screen 20 on the multimedia device 36, thereby facilitating subsequent teaching and use work;

During the use of the device, with reference to FIGS. 1 , 4 , 5 , 8 and 9 , the teacher asks questions on the touch screen 20 , and then allows students to answer the questions on the touch screen 20 . After answering the question on the touch screen 20, the system in the multimedia device 36 will detect the answer. When the answer is correct, the system in the multimedia device 36 can control the small hydraulic cylinder 21 on the lower side of the lower protective plate 12 to work. The hydraulic rod 22 on the small hydraulic cylinder 21 drives the top block 23 to push the connecting rod 25, and then the connecting rod 25 can drive the smiley face expression reply plate 26 to rotate downward on the connecting plate 24, and the reply board can remind the students to answer the question correctly, and then It can effectively improve the interaction between the teaching device and the students, and then the hydraulic rod 22 returns to its original position, and under the action of the rubber rod 27, the connecting rod 25 can be driven to return to its original position. The small hydraulic cylinder 21 combined with the top block 23 on the hydraulic rod 22 can push the sad expression reply board 26 on the upper connecting rod 25 to remind the students of mistakes in answering questions;

After the device is used, referring to FIGS. 1 , 6 and 10 , the second servo motor 8 can drive the coil 10 to rotate in the reverse direction through the fixed shaft 9 . At this time, under the action of gravity, the sliding slot 15 can drive the connecting shaft 14 to rotate. The upper protective plate 13 drives the lower protective plate 12 to return to the vertical state, and then gradually falls until the lower protective plate 12 is fully unfolded. At this time, the limit block 28 under the lower protective plate 12 falls into the limit groove 29 on the mounting frame 1, At this time, the limit block 28 can squeeze the push rod 30 to move downward, and then the connecting line 32 on the push rod 30 can drive the clamping plates 34 on both sides to move to the middle at the same time through the guide wheel 33, so that the limit can be adjusted conveniently and quickly. The block 28 performs the clamping and limiting work, which can ensure the stability of the placement state of the lower protective plate 12. At this time, the lower protective plate 12 combined with the upper protective plate 13 can stably protect the multimedia equipment 36, and the lower protective plate 12 drives the limit block. When the 28 moves upwards and leaves the limit groove 29, under the action of the rubber block 35 and the rubber pad 31, the clamping plate 34 and the push rod 30 can be respectively driven to return to their original positions, which is convenient for the next work. The above is the work of the whole device. process, and the contents not described in detail in this specification, such as the universal wheel 3, the first servo motor 4, the touch screen 20, the small hydraulic cylinder 21, the hydraulic rod 22, the rubber block 35 and the multimedia equipment 36, all belong to this manual. State of the art known to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or to perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1. A sociology demonstration teaching device with a teaching interactive structure, comprising a mounting frame (1), a support rod (6), an upper protective plate (13), a cleaning brush (19), an expression recovery board (26) and a clamp The plate (34) is characterized in that: a fixing rod (2) is connected to the lower screw of the mounting frame (1), and a universal wheel (3) is installed on the bottom end bolt of the fixing rod (2), and the fixing rod ( 2) A first servo motor (4) is welded and fixed inside, and a threaded rod (5) is rotatably connected to the output end of the first servo motor (4), and a support rod (6) is movably connected to the threaded rod (5), In addition, the threaded rod (5) is engaged with a transmission belt (7), a second servo motor (8) is welded and fixed on the mounting frame (1), and a fixed shaft is rotatably connected to the output end of the second servo motor (8). (9), a coil (10) is welded and fixed on the fixed shaft (9), and a pulling wire (11) is wound around the coil (10), and the bottom end of the pulling wire (11) is bolted to the limit block (28), and the limit block (28) is screwed on the lower protective plate (12), and the lower protective plate (12) is slidably connected in the upper protective plate (13), and the upper protective plate (13) is welded and fixed. There is a connecting shaft (14), a sliding groove (15) is provided on the mounting frame (1), and a connecting shaft (14) is slidably connected in the sliding groove (15), and the upper protective plate (13) is connected with screws There is a gear rod (16), and the gear rod (16) is meshed with a first circular gear (17), and the shaft of the first circular gear (17) is connected in the upper protective plate (13), the said The first circular gear (17) is meshed with a second circular gear (18), and both the first circular gear (17) and the second circular gear (18) are screwed with a cleaning brush (19), Multimedia equipment (36) is installed with bolts on the mounting frame (1), and a touch display screen (20) is installed with bolts on the multimedia equipment (36), and a small hydraulic cylinder ( 21), and the output end of the small hydraulic cylinder (21) is provided with a hydraulic rod (22), and the top of the hydraulic rod (22) is screwed with a top block (23), and the lower protective plate (12) is screwed with a The connecting plate (24) is movably connected with a connecting rod (25), and the top end of the connecting rod (25) is screwed with an expression recovery plate (26), and the connecting rod (25) is connected with screws There is a rubber rod (27), and the top end of the rubber rod (27) is screwed on the connecting plate (24), a limit groove (29) is provided on the mounting frame (1), and the limit groove (29) is clamped inside A limit block (28) is connected together, a rubber pad (31) is screwed in the mounting frame (1), and a push rod (30) is screwed to the top of the rubber pad (31), and the push rod (30) slides Connected in the mounting frame (1), a connecting wire (32) is bolted on the push rod (30), and the connecting wire (32) is slidably connected to the guide wheel (33), and the guide wheel (33) is screwed in the mounting bracket (1) Inside, the top end of the connecting wire (32) is bolted with a clamping plate (34), and the clamping plate (34) is slidably connected in the limiting groove (29), and the clamping plate (34) is connected with screws There is a rubber block (35), and the end screw of the rubber block (35) is connected in the limiting groove (29). 2. A sociology demonstration teaching device with a teaching interactive structure according to claim 1, characterized in that: the fixed rods (2) are symmetrically distributed on the left and right sides of the mounting frame (1), and the fixed rods ( The central axis of 2) and the central axis of the support rod (6) are located on the same vertical center line, and the fixed rod (2) is equiangularly distributed with universal wheels (3). 3. A sociology demonstration teaching device with a teaching interactive structure according to claim 1, characterized in that: the threaded rod (5) is fixed at the middle part of the support rod (6), and the threaded rod (5) There is a threaded connection with the support rod (6), and the support rod (6) and the fixed rod (2) are in a snap-fit sliding connection, and the length of the fixed rod (2) is greater than the length of the support rod (6). 4. A sociology demonstration teaching device with a teaching interactive structure according to claim 1, characterized in that: the pulling wire (11) is fixed at the middle part of the limit block (28), and the limit block ( The length of 28) is equal to the width of the lower protective plate (12), and the cross-section of the limiting block (28) is "L" shaped. 5. A sociology demonstration teaching device with a teaching interactive structure according to claim 1, characterized in that: the width of the lower protective plate (12) is smaller than the inner space width of the upper protective plate (13), and the upper protective plate (13) has a width. Gear rods (16) are symmetrically distributed on the left and right sides of the protective plate (13), and the cross-section of the upper protective plate (13) and the cross-section of the lower protective plate (12) are both "U"-shaped. 6. A sociology demonstration teaching device with a teaching interactive structure according to claim 1, characterized in that: the cleaning brushes (19) are equiangularly distributed on the first circular gear (17) and the second circular gear (17) On the gear (18), the first circular gear (17) and the second circular gear (18) are both axially connected on the lateral middle line of the lower protective plate (12), and the bottom end surface of the cleaning brush (19) is in contact with the touch. The top surfaces of the display screen (20) are attached to each other. 7. A sociology demonstration teaching device with a teaching interactive structure according to claim 1, characterized in that: the connecting rod (25) and the connecting plate (24) are hinged, and the connecting rod (25) Symmetrically distributed on the upper and lower sides of the connecting plate (24), and the connecting rods (25) are in one-to-one correspondence with the expression recovery board (26), and the height of the top surface of the connecting rods (25) is greater than the height of the bottom end surface of the top block (23). , while the top block (23) is semicircular. 8. A sociology demonstration teaching device with a teaching interactive structure according to claim 1, characterized in that: a push rod (30) is slidably connected to the middle part of the limiting groove (29), and the push rod ( Connecting lines (32) are symmetrically distributed on the left and right sides of 30), and the connecting lines (32) are in one-to-one correspondence with the guide wheels (33). 9. A sociology demonstration teaching device with a teaching interactive structure according to claim 1, characterized in that: the clamping plates (34) are symmetrically distributed on the left and right sides of the limiting groove (29), and clamp the The middle part of the holding plate (34) is fixed with a rubber block (35), and the height of the top end surface of the clamping plate (34) is smaller than the height of the top end surface of the limiting groove (29).

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