CN111640343A - Intelligent online college English online teaching evaluation system based on OBE - Google Patents

Abstract

The invention discloses an OBE-based intelligent online evaluation system for college English online teaching, including an evaluation console, an evaluation host is fixedly connected to the upper surface of the evaluation console, and a stable seat is arranged on the upper surface of the evaluation console. The upper surface of the stable seat is fixedly connected with a sleeve, the inner of the sleeve is threadedly connected with a support rod, the surface of the support rod is rotatably connected with a rotating ring, and the front surface of the rotating ring is fixedly connected with a mounting plate. The OBE-based intelligent online assessment system for college English online teaching can drive the lead screw to rotate in forward and reverse directions by setting the reciprocating motor, and drive the sliding bar to move left and right by setting the lead screw and translation ring, thereby driving the cleaning duster to move left and right. By setting the rotating motor and the rotating shaft, the cleaning duster can be driven to rotate, and by setting the rotating ring, the display screen can be rotated, so as to achieve the automatic cleaning effect of the OBE-based intelligent online evaluation system for college English online teaching.

Description

Intelligent online evaluation system for college English online teaching based on OBE

technical field

The invention relates to the technical field of teaching equipment, in particular to an OBE-based intelligent online assessment system for college English online teaching.

Background technique

English belongs to the West Germanic branch of the Germanic family of the Indo-European language family. It evolved from the language spoken by the Anglo, Saxon and Jute tribes who immigrated to Great Britain from continental Europe in ancient times, and spread to the All over the world, English is the official language spoken in the largest number of countries based on the number of people who speak English as a native language, English is also the most widely used second language in the world, and one of the official languages of the European Union, the largest number of international organizations and the Commonwealth of Nations, but only has The third largest native speaker in the world, less than Mandarin Chinese and Spanish, the cultural, economic, military, political and scientific leadership of Britain and the United States over the past two centuries has made English an international language. English is used as a medium of communication in all occasions, and English is also the language most closely related to computers. Most programming languages are related to English, and with the use of the Internet, the use of English has become more popular. English is one of the working languages of the United Nations. one.

English teaching refers to the process of teaching English to people who are or are not the first language. English teaching involves a variety of professional theoretical knowledge, including linguistics, second language acquisition, vocabulary, syntax, stylistics, corpus Theories, cognitive psychology and other content, English teaching is a step-by-step process. Whether it is for people who are English as their first language or not, English learning is very important in today's rapid development of globalization. It is necessary to use an evaluation system to evaluate the learning outcomes, and the existing evaluation system does not have the function of automatic cleaning, and manual cleaning is inconvenient.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an OBE-based intelligent online assessment system for college English online teaching, so as to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: an intelligent online evaluation system for college English online teaching based on OBE, including an evaluation console, and an evaluation host is fixedly connected to the upper surface of the evaluation console, and an evaluation console is installed on the evaluation console. The surface is provided with a stable seat, the upper surface of the stable seat is fixedly connected with a sleeve, the inner part of the sleeve is threadedly connected with a support rod, the surface of the support rod is rotatably connected with a rotating ring, and the front of the rotating ring is fixed A mounting plate is connected, the front of the mounting plate is fixedly connected with a display screen, the top of the mounting plate is fixedly connected with a translation device, the bottom end of the mounting plate is fixedly connected with a cross bar, and the upper surface of the cross bar is slidably connected There is a sliding rod, the right side of the sliding rod is fixedly connected with a rotating device and a fixed block, the upper surface of the fixed block is fixedly connected with a bearing, the inner ring surface of the bearing is fixedly connected with a rotating shaft, and the surface of the rotating shaft is fixedly connected with the rotating shaft. The fixed connection has a cleaning duster.

Preferably, a support leg is fixedly connected to the lower surface of the evaluation console, a base is fixedly connected to the lower surface of the support leg, the base is trapezoidal, the material of the base is rubber, and the lower surface of the base is open There are several anti-skid protrusions, the number of the support legs is four, and the four support legs are evenly arranged on the lower surface of the evaluation console in a rectangular array.

Preferably, the stable seat is trapezoidal, the surface of the support rod is provided with threads, the inner wall of the sleeve is provided with threads adapted to the support rod, and the right side of the sleeve is fixedly connected with a top wire, The left side of the top wire extends leftward to the inside of the sleeve, the right side of the top wire is fixedly connected with a knob, the surface of the knob is provided with a number of raised strips for anti-slip, and the The surface is fixedly connected with limit plates, the number of the limit plates is two, and the rotating ring is located between the opposite surfaces of the two limit plates.

Preferably, the translation device includes a device box fixedly connected with the top end of the mounting plate, a first shock-absorbing plate is fixedly connected to the inner bottom wall of the device box, and a reciprocating motor is fixedly connected to the upper surface of the first shock-absorbing plate , the output end of the reciprocating motor is fixedly connected with a screw rod, and the length of the screw rod is adapted to the display screen.

Preferably, the surface of the screw rod is fixedly connected to a limit ring, and the number of limit rings is two, and the two limit rings are symmetrically arranged on the surface of the screw rod with the vertical centerline of the front surface of the screw rod as the symmetry axis .

Preferably, a translation ring is threaded on the surface of the screw rod, the cross section of the translation ring is in the shape of an outer square and an inner circle, the top end of the sliding rod extends upward to the inside of the device box, and the lower surface of the device box is opened There is an opening that facilitates the movement of the sliding rod, the top end of the sliding rod is fixedly connected with the lower surface of the translation ring, and the translation ring is located between the opposite surfaces of the two limiting rings.

Preferably, the bottom end of the sliding rod is provided with an installation port, and the inner wall of the installation port is fixedly connected with a roller, the upper surface of the cross rod is provided with a chute adapted to the roller, and the cross rod is connected to the device box. of the same length.

Preferably, the rotating device includes a motor box fixedly connected to the right side of the sliding rod, the inner bottom wall of the motor box is fixedly connected with a battery and a second shock-absorbing plate, and the upper surface of the second shock-absorbing plate is fixed A rotating motor is connected, the output end of the rotating motor extends downward to the outside of the motor box, the output end of the rotating motor is fixedly connected with the rotating shaft, and the height of the cleaning duster is adapted to the width of the display screen.

Preferably, both the reciprocating motor and the rotating motor are coupled with a battery, and both the evaluation host and the display screen are connected to an external power source.

beneficial effect

The invention provides an OBE-based intelligent online evaluation system for college English online teaching, which has the following beneficial effects:

1. The OBE-based intelligent online evaluation system for college English online teaching can drive the lead screw to rotate in forward and reverse directions by setting the reciprocating motor, and drive the sliding bar to move left and right by setting the lead screw and translation ring, thereby driving the cleaning duster to move left and right. By setting the rotating motor and the rotating shaft, the cleaning duster can be driven to rotate, so as to achieve the automatic cleaning effect of the OBE-based intelligent online evaluation system for college English online teaching.

2. The OBE-based intelligent online evaluation system for college English online teaching can adjust the height of the display screen according to personal habits by setting the sleeve and support rod, and can make the display screen rotate by setting the rotating ring, so as to achieve the OBE-based university The easy-to-use effect of the intelligent online assessment system for English online teaching.

Description of drawings

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

FIG. 2 is a schematic structural diagram of a side view of a display screen of the present invention;

Fig. 3 is a schematic view of enlarged structure at place A in Fig. 1;

Fig. 4 is the enlarged structural schematic diagram at B in Fig. 1;

FIG. 5 is an enlarged schematic view of the structure at C in FIG. 1 .

In the picture: 1 evaluation console, 2 evaluation host, 3 stable seat, 4 sleeve, 5 support rod, 6 rotating ring, 7 mounting plate, 8 display screen, 9 horizontal bar, 10 sliding bar, 11 fixed block, 12 rotating shaft , 13 cleaning duster, 14 supporting legs, 15 base, 16 top wire, 17 knob, 18 device box, 19 reciprocating motor, 20 screw rod, 21 translation ring, 22 motor box, 23 battery, 24 rotating motor.

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.

1-5, the present invention provides a technical solution: an OBE-based intelligent online evaluation system for college English online teaching, including an evaluation console 1, and a support leg 14 is fixedly connected to the lower surface of the evaluation console 1. The support leg The lower surface of the base 14 is fixedly connected with a base 15, the base 15 is trapezoidal, the base 15 is made of rubber, the lower surface of the base 15 is provided with a number of anti-skid protrusions, the number of support legs 14 is four, and the four support legs are rectangular. The array is evenly arranged on the lower surface of the evaluation console 1, the upper surface of the evaluation console 1 is fixedly connected with the evaluation host 2, the upper surface of the evaluation console 1 is provided with a stable seat 3, and the upper surface of the stable seat 3 is fixedly connected with a sleeve 4 , a support rod 5 is threadedly connected to the inner part of the sleeve 4 .

The stabilizer seat 3 is trapezoidal, the surface of the support rod 5 is provided with threads, the inner wall of the sleeve 4 is provided with threads that match the support rod 5, the right side of the sleeve 4 is fixedly connected with a top wire 16, and the left side of the top wire 16 is fixedly connected. The side extends to the inside of the sleeve 4 to the left, the right side of the top wire 16 is fixedly connected with a knob 17, the surface of the knob 17 is provided with a number of raised strips for anti-slip, and the surface of the support rod 5 is fixedly connected to the limit plate, The number of limit plates is two, the rotating ring 6 is located between the opposite surfaces of the two limit plates, the surface of the support rod 5 is rotatably connected with the rotating ring 6, the front of the rotating ring 6 is fixedly connected with the mounting plate 7, the mounting plate A display screen 8 is fixedly connected to the front of the mounting plate 7, and a translation device is fixedly connected to the top of the mounting plate 7. The translation device includes a device box 18 that is fixedly connected to the top of the mounting plate 7. The inner bottom wall of the device box 18 is fixedly connected with a first shock absorbing device. The upper surface of the first shock-absorbing plate is fixedly connected with a reciprocating motor 19, and the output end of the reciprocating motor 19 is fixedly connected with a lead screw 20. The length of the lead screw 20 is adapted to the display screen 8. By setting the reciprocating motor 19, it is possible to The screw rod 20 is driven to rotate in the forward and reverse directions, the surface of the screw rod 20 is fixedly connected with a limit ring, and the number of limit rings is two, and the two limit rings are symmetrically arranged on the vertical center line of the front of the screw rod 20 as the symmetry axis. The surface of the screw 20.

By setting the sleeve 4 and the support rod 5, the height of the display screen 8 can be adjusted according to personal habits, and by setting the rotating ring 6, the display screen 8 can be rotated, so that the OBE-based intelligent online evaluation system for college English online teaching is convenient The effect of use is that the bottom end of the mounting plate 7 is fixedly connected with the cross bar 9, the upper surface of the cross bar 9 is slidably connected with the sliding rod 10, the surface of the screw rod 20 is threadedly connected with a translation ring 21, and the cross section of the translation ring 21 is outside and inside. The top end of the sliding rod 10 extends upward to the inside of the device box 18. The lower surface of the device box 18 is provided with an opening for the movement of the sliding rod 10. The top end of the sliding rod 10 is fixedly connected with the lower surface of the translation ring 21. The translation ring 21 is located between the opposite surfaces of the two limit rings, the bottom end of the sliding rod 10 is provided with a mounting port, and the inner wall of the mounting port is fixedly connected with a roller, and the upper surface of the cross bar 9 is provided with a chute adapted to the roller. , the length of the cross bar 9 and the device box 18 is the same.

The right side of the sliding rod 10 is fixedly connected with a rotating device and a fixed block 11 respectively, the upper surface of the fixed block 11 is fixedly connected with a bearing, the inner ring surface of the bearing is fixedly connected with a rotating shaft 12, and the surface of the rotating shaft 12 is fixedly connected with a cleaning duster 13, The rotating device includes a motor box 22 that is fixedly connected to the right side of the slide bar 10. The inner bottom wall of the motor box 22 is respectively fixed with a battery 23 and a second shock-absorbing plate, and the upper surface of the second shock-absorbing plate is fixedly connected with a rotating motor 24. , the output end of the rotating motor 24 extends downward to the outside of the motor box 22, the output end of the rotating motor 24 is fixedly connected with the rotating shaft 12, the height of the cleaning duster 13 is adapted to the width of the display screen 8, the reciprocating motor 19 and the rotating motor 24 Both are coupled with the battery 23, and the evaluation host 2 and the display screen 8 are connected to the external power supply. By setting the screw rod 20 and the translation ring 21, the sliding rod 10 can be driven to move left and right, thereby driving the cleaning duster 13 to move left and right. By setting the rotating motor 24 and the rotating shaft 12 can drive the cleaning duster 13 to rotate, so as to achieve the automatic cleaning effect of the OBE-based intelligent online evaluation system for college English online teaching.

Working principle: When the OBE-based intelligent online assessment system for college English online teaching is used, rotate the support rod 5, use the sleeve 4 to adjust the height of the display screen 8 according to personal habits, twist the knob 17, and use the top wire 16 to fix the support rod 5. Then use the rotating ring 6 to adjust the angle of the display screen 8 so that it faces the operator. When it is necessary to clean the display screen 8, turn on the reciprocating motor 19, and use the screw rod 20 and the translation ring 21 to drive the sliding rod 10 to move left and right, Thereby, the cleaning duster 13 is moved left and right, the cross bar 9 is used to make the sliding bar 10 move more smoothly, and the rotating motor 24 is turned on to rotate the rotating shaft 12, thereby driving the cleaning duster 13 to rotate, which can better clean the display screen 8, so as to achieve this based on The effect of automatic cleaning of OBE's College English Online Teaching Intelligent Online Evaluation System.

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

Claims (9)

1. An intelligent online evaluation system for college English online teaching based on OBE, comprising an evaluation console (1), characterized in that: an evaluation host (2) is fixedly connected to the upper surface of the evaluation console (1), and the evaluation console (1) is A stable seat (3) is provided on the upper surface of the operating table (1), a sleeve (4) is fixedly connected to the upper surface of the stable seat (3), and a support rod (5) is threadedly connected to the inner surface of the sleeve (4). ), the surface of the support rod (5) is rotatably connected with a rotating ring (6), the front of the rotating ring (6) is fixedly connected with a mounting plate (7), and the front of the mounting plate (7) is fixedly connected with a A display screen (8), the top end of the mounting plate (7) is fixedly connected with a translation device, the bottom end of the mounting plate (7) is fixedly connected with a crossbar (9), and the upper surface of the crossbar (9) slides A sliding rod (10) is connected, the right side of the sliding rod (10) is fixedly connected with a rotating device and a fixing block (11) respectively, and a bearing is fixedly connected to the upper surface of the fixing block (11), and the bearing A rotating shaft (12) is fixedly connected to the inner annular surface, and a cleaning duster (13) is fixedly connected to the surface of the rotating shaft (12). 2. The intelligent online evaluation system for online teaching of college English based on OBE according to claim 1, characterized in that: the lower surface of the evaluation console (1) is fixedly connected with support legs (14), and the support legs The lower surface of (14) is fixedly connected with a base (15), the base (15) is trapezoidal, the base (15) is made of rubber, and the lower surface of the base (15) is provided with a number of anti-skid protrusions The number of the support legs (14) is four, and the four support legs are uniformly arranged on the lower surface of the evaluation console (1) in a rectangular array. 3. The intelligent online evaluation system for online teaching of college English based on OBE according to claim 1, characterized in that: the stable seat (3) is in the shape of a trapezoid, and the surface of the support rod (5) is provided with threads, so The inner wall of the sleeve (4) is provided with a thread that is adapted to the support rod (5), the right side of the sleeve (4) is fixedly connected with a jacking wire (16), and the left The side extends to the inside of the sleeve (4) to the left, the right side of the top wire (16) is fixedly connected with a knob (17), and the surface of the knob (17) is provided with a number of raised strips for anti-slip , the surface of the support rod (5) is fixedly connected with limit plates, the number of the limit plates is two, and the rotation ring (6) is located between the opposite surfaces of the two limit plates. 4. The OBE-based intelligent online assessment system for college English online teaching according to claim 1, wherein the translation device comprises a device box (18) fixedly connected to the top of the mounting plate (7), the device The inner bottom wall of the box (18) is fixedly connected with a first shock-absorbing plate, the upper surface of the first shock-absorbing plate is fixedly connected with a reciprocating motor (19), and the output end of the reciprocating motor (19) is fixedly connected with a wire A rod (20), the length of the screw rod (20) is adapted to the display screen (8). 5. The OBE-based intelligent online evaluation system for college English online teaching according to claim 4, characterized in that: the surface of the screw (20) is fixedly connected to a limit ring, and the number of limit rings is two , the two limiting rings are symmetrically arranged on the surface of the screw rod (20) with the vertical midline of the front face of the screw rod (20) as the symmetry axis. 6. The intelligent online evaluation system for online teaching of college English based on OBE according to claim 4, characterized in that: a translation ring (21) is threadedly connected to the surface of the lead screw (20), and the translation ring (21) ) is in the shape of an outer square and an inner circle, the top end of the sliding rod (10) extends upward to the inside of the device box (18), and the lower surface of the device box (18) is provided with a convenient sliding rod (10) to move. An opening, the top end of the sliding rod (10) is fixedly connected with the lower surface of the translation ring (21), and the translation ring (21) is located between the opposite surfaces of the two limit rings. 7. The OBE-based intelligent online assessment system for college English online teaching according to claim 1, characterized in that: the bottom end of the sliding rod (10) is provided with an installation port, and the inner wall of the installation port is fixedly connected with a roller , the upper surface of the cross bar (9) is provided with a chute adapted to the roller, and the length of the cross bar (9) is the same as that of the device box (18). 8. The OBE-based intelligent online assessment system for college English online teaching according to claim 1, characterized in that: the rotating device comprises a motor box (22) fixedly connected to the right side of the slide bar (10), the A battery (23) and a second damping plate are fixedly connected to the inner bottom wall of the motor box (22) respectively, and a rotating motor (24) is fixedly connected to the upper surface of the second damping plate, and the rotating motor (24) The output end of the rotary motor (24) extends downward to the outside of the motor box (22), the output end of the rotating motor (24) is fixedly connected to the rotating shaft (12), and the height of the cleaning duster (13) is the same as the width of the display screen (8). adaptation. 9. The OBE-based intelligent online evaluation system for college English online teaching according to claim 1, characterized in that: both the reciprocating motor (19) and the rotating motor (24) are coupled with a battery (23), and the evaluation The host (2) and the display screen (8) are both connected to the external power supply.

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