Aiming principle demonstrator for teaching

Abstract

The utility model relates to a demonstrator for teaching, in particular to an aiming principle demonstrator for teaching, which comprises an operation box with a control screen embedded on the top surface. An observation chamber and an angle adjusting wheel are sequentially arranged on the top face, close to the control screen, of the operation box from left to right, and a sighting telescope and a height adjusting wheel are sequentially arranged on the side face, opposite to the control screen, of the observation chamber from top to bottom. Therefore, the utility model provides the aiming principle demonstrator for teaching, which is used for demonstrating the aiming principle, providing teaching guidance and simulating a real aiming operation process.

Description

TECHNICAL FIELD

[0001] The utility model relates to a demonstrator for teaching, especially a sighting principle demonstrator for teaching. BACKGROUND

[0002] The sighting principle demonstrator is a kind of teaching tool that helps student to understand sighting principle and master sighting skill by simulating real sighting scene, therefore, the sighting principle demonstrator is widely used in shooting teaching and other fields to help student to quickly master sighting skill and improve the precision and efficiency of sighting, but most of the existing sighting principle demonstrator simulates sighting by VR technology, and operation process is mostly completed by matching handle, therefore, student cannot experience real sighting operation process, can only understand the principle of sighting, and it is difficult to guarantee the efficiency and precision of sighting in actual operation. SUMMARY

[0003] Therefore, the utility model provides a sighting principle demonstrator for teaching;The purpose is to provide a sighting principle demonstrator for teaching that can demonstrate sighting principle, provide teaching guidance and simulate real sighting operation process.

[0004] The utility model provides a sighting principle demonstrator for teaching, including the operation box of embedding with control screen on top surface, the top surface of operation box is adjacent with control screen by left to right and is sequentially provided with observation room and angle adjusting wheel, the side face of observation room and control screen is sequentially provided with sighting telescope and height adjusting wheel from top to bottom;

[0005] The top surface of operation box is adjacent with control screen and is provided with fixed through hole, the fixed through hole is hinged with observation room, the lower portion of control screen in operation box is provided with controller, the central position of angle adjusting wheel is provided with first connecting shaft, the end of first connecting shaft is connected with first encoding pulley and is connected with the top surface of operation box, the inner periphery of first encoding pulley is provided with multiple spokes at equal intervals, the top surface of operation box is provided with first infrared emitter on the inner wall and is adjacent with first encoding pulley, the lower portion of first encoding pulley is provided with first optical sensor and is parallel with first infrared emitter, the opposite side of first optical sensor and first infrared emitter is provided with two optical sensing devices, first infrared emitter and first optical sensor are electrically connected with first processor, and first processor is electrically connected with controller;

[0006] The side wall of the observation chamber is provided with a fixed block corresponding to the position of the scope, the scope penetrates the fixed block and is connected with the cavity of the observation chamber, a first display screen is arranged in the observation chamber and is parallel to the scope, the top end of the first display screen is connected with the inner wall of the top surface of the observation chamber through a universal shaft, the two side surfaces and the back surface of the first display screen are respectively connected with the three side walls of the observation chamber through limiting devices, a second connecting shaft is arranged at the center of the height adjusting wheel, the end of the second connecting shaft penetrates the side wall of the observation chamber and is connected with a second encoding wheel, a plurality of spokes are arranged at equal intervals on the inner periphery of the second encoding wheel, a second infrared emitter is arranged on the right side of the second encoding wheel on the side wall of the observation chamber, a second optical sensor is arranged on the left side of the second encoding wheel and is parallel to the second infrared emitter, two optical sensing devices are arranged adjacent to each other on the side opposite to the second infrared emitter of the second optical sensor, the second infrared emitter and the second optical sensor are electrically connected with a second processor, the second processor is electrically connected with the controller, a battery is clamped at the bottom end of the observation chamber, and the battery is electrically connected with the control screen, the controller, the first processor and the second processor.

[0007] Further, four telescopic columns are arranged at the four ends of the bottom surface of the operation box, motors are arranged at the starting ends of the four telescopic columns, the four motors are fixedly arranged on the inner wall of the bottom surface of the operation box, a supporting base is arranged in parallel to the operation box, and the ends of the four telescopic columns are connected with the top surface of the supporting base.

[0008] Further, a rotating support frame is arranged on the top surface of the observation chamber, the rotating support frame comprises a first connecting rod, a second connecting rod and a third connecting rod, the starting end of the first connecting rod is fixedly connected with the top surface of the observation chamber, the end of the first connecting rod is connected with the starting end of the second connecting rod through a first rotating shaft, the end of the second connecting rod is connected with the starting end of the third connecting rod through a second rotating shaft, a clamping groove is arranged on one side wall of the third connecting rod, and a second display screen is clamped in the clamping groove.

[0009] Further, a magnet attracting piece is arranged in the clamping groove, and a magnetic piece is arranged on the back surface of the second display screen, so that the second display screen is magnetically clamped in the clamping groove.

[0010] Further, a handle is arranged on the height adjusting wheel and the angle adjusting wheel.

[0011] Further, a pad is arranged on the top surface of the fixed block and above the scope.

[0012] Further, a heat dissipation fan is arranged above the battery in the observation chamber, and the heat dissipation fan is electrically connected with the battery and the controller respectively, and a plurality of heat dissipation holes are arranged on a side wall of the observation chamber and correspond to the heat dissipation fan.

[0013] The utility model discloses the beneficial effect is:

[0014] 1. The utility model discloses an operation box, observation chamber, angle adjusting wheel and height adjusting wheel solve the problem that the existing sighting principle demonstrator cannot experience real sighting operation process, when teaching, can let the student look to the first display screen through the sighting telescope, and rotates angle adjusting wheel and height adjusting wheel and adjusts the picture and makes the target move to the cross in the heart, when rotating angle adjusting wheel, will drive first encoding turntable rotation, the spoke that sets up on first encoding turntable also rotates along with it, the infrared ray that emits from first infrared emitter is intermittently blocked by the spoke on first encoding turntable, wherein the infrared ray that passes through the spoke gap will come to the optical sensing device of first optical inductor, then is converted into pulse signal, first optical inductor is provided with two adjacent optical sensing devices, therefore when first encoding turntable rotates, one sensor will receive infrared ray than another sensor first, for example: when clockwise rotation, the optical sensing device of right side is earlier than the optical sensing device of left side and contacts infrared ray, when counterclockwise rotation, the optical sensing device of left side is earlier than the optical sensing device of right side and contacts infrared ray, thus judge first encoding turntable, i. e. angle adjusting wheel is rotated to left or right, the pulse signal of conversion is transmitted to first treater, and first treater calculates the rotation distance and direction of first encoding turntable according to the quantity and wave form of pulse signal, and is transmitted to controller, and controller adjusts the display picture on the first display screen according to the rotation distance and direction of first encoding turntable, after angle adjustment is completed, height adjustment is carried out again through rotating height adjusting wheel, and the operating principle of height adjusting wheel is same with the operating principle of angle adjusting wheel, picture is moved as a whole following the rotation of angle adjusting wheel and height adjusting wheel at this time, to simulate the movement of the scene in the line of sight when adjusting sighting, when the target appears in the cross position, complete sighting operation, make the student experience the operation process when sighting, help the student to better master sighting skill, improve the sighting accuracy and sighting efficiency of student, improve the practicality of the utility model simultaneously.

[0015] 2. The utility model discloses a telescopic column and motor combination setting, which can simulate the real scene of the external environment vibration, shaking and so on when simulating the real aiming operation, that is, the controller sends instructions to the four motors respectively, and the four telescopic columns change in different heights, at this time, the operation box shakes, the top of the first display screen is connected through the universal shaft, so the first display screen shakes more than the operation box, the limiting device on the two side walls and the back of the first display screen generates a pushing force or a pulling force on the first display screen, preventing the first display screen from being damaged due to the mutual collision with the side wall of the observation room, but the first display screen will shake within a certain range, the picture shakes with the first display screen, simulating the environment vibration, shaking and so on when simulating the actual operation, increasing the aiming operation difficulty of the students, enabling the students to intuitively experience the real aiming operation process, and effectively improving the aiming accuracy and aiming efficiency of the students.

[0016] 3. The utility model discloses a second display screen arranged on the rotating support frame, the second display screen is the synchronous image of the first display screen, and the screen of the second display screen is marked with a circular frame line with a center position and a sighting dot corresponding to the position of the sighting telescope, so that the instructor can observe and guide the aiming operation of the students in real time through the display picture of the second display screen, help the students quickly master the aiming skill, and improve the aiming accuracy and efficiency.

[0017] 4. The utility model discloses a magnetic sheet arranged in the clamping groove and a magnetic sheet arranged on the back of the second display screen, which enables the second display screen to be magnetically attracted in the clamping groove, and the clamping groove can form double locking for the second display screen, that is, the second display screen can be quickly installed and removed, and can be stably clamped in the clamping groove, preventing the second display screen from being damaged due to falling during the simulation of vibration and shaking.

[0018] 5. The utility model discloses a handle arranged on the height adjusting wheel and the angle adjusting wheel, which makes the height adjusting wheel and the angle adjusting wheel more close to the real operation instrument, enabling the students to experience the operation process during the real aiming, helping the students to better master the aiming skill, and improving the aiming accuracy and efficiency of the students.

[0019] 6. The utility model discloses a pad arranged above the sighting telescope, which can protect the eyes of the students when simulating the real scene of the external environment vibration, shaking and so on, enabling the eyes of the students to be kept at a certain safe distance from the sighting telescope, preventing the eyes of the students from being damaged due to the shaking of the sighting telescope, and improving the safety and practicality of the utility model.

[0020] 7. The utility model discloses a heat dissipation fan is set up in the observation room, and the bottom of observation room and operating chamber are in the intercommunication state, so when the heat dissipation fan radiates heat, operating chamber and observation room can effectively radiate heat and cool down, make the utility model discloses can long -time use, also can't cause damage to the internal electric element, effectively prolong the service life of the utility model discloses. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the side view structural schematic drawing of the utility model;

[0022] Figure 2 It is the side view sectional structure schematic drawing of the utility model;

[0023] Figure 3 It is the overhead structure schematic drawing of the utility model coding rotation wheel;

[0024] Figure 4 It is the overhead structure schematic drawing of the utility model first optical sensor.

[0025] The drawing figure mark: 1. control screen, 2. operating box, 3. observation room, 4. angle adjusting wheel, 5. height adjusting wheel, 6. sighting telescope, 7. controller, 8. first coding rotation wheel, 9. spoke, 10. first infrared emitter, 11. first optical inductor, 12. optical inductive device, 13. first treater, 14. second treater, 15. fixed block, 16. first display screen, 17. universal pivot, 18. limiting device, 19. second coding rotation wheel, 20. second infrared emitter, 21. second optical inductor, 22. battery, 23. telescopic column, 24. motor, 25. support base, 26. first connecting rod, 27. second connecting rod, 28. third connecting rod, 29. clamping recess, 30. second display screen, 31. handle, 32. backing plate, 33. heat dissipation fan. DETAILED DESCRIPTION

[0026] The technical scheme of the utility model will be described clearly and completely in conjunction with the drawings, and obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the scope of protection of the utility model.

[0027] In the description of the utility model, it is necessary to explain that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0028] In the description of the utility model, it is necessary to explain that, unless otherwise expressly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, and can also be detachably connected, or integrally connected, can be mechanically connected, or electrically connected, can be directly connected, or indirectly connected through an intermediate medium, can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] As Figure 1 The utility model provides a kind of aiming principle demonstrator for teaching, including the operation box 2 with control screen 1 embedded on top surface, above-mentioned control screen 1 is brand: touch screen of type: ZPC101-S112-B of hundred of intelligent, observation chamber 3 and angle adjusting wheel 4 are sequentially arranged from left to right on the top surface of operation box 2 adjacent control screen 1, the side plate of operation box 2 is movable side plate screwed on operation box 2, to facilitate the operation of maintenance, repair and replacement etc. to the device arranged in operation box 2, the side face of observation chamber 3 and control screen 1 is away from by sequentially being provided with sighting telescope 6 (according to actual teaching selects corresponding sighting telescope) and height adjusting wheel 5 from top to bottom, height adjusting wheel 5 and angle adjusting wheel 4 are all provided with handle 31, handle 31 outer periphery can be set with antiskid sleeve (select according to the equipment that needs to be simulated, also can not be set with antiskid sleeve), if need to set with antiskid sleeve, antiskid sleeve is then selected to be made of similar material with real equipment;

[0030] As Figure 2As shown, the top surface of the operation box 2 is adjacent to the control screen 1 and is provided with a fixed through hole, and the observation chamber 3 is clamped in the fixed through hole. The lower part of the control screen 1 in the operation box 2 is provided with a controller 7. The controller 7 is a processor with the brand of Intel(R) and the model of Intel(R) Core(TM) i7-10510Y. The center position of the angle adjusting wheel 4 is provided with a first connecting shaft. The end of the first connecting shaft penetrates the top surface of the operation box 2 and is connected with the first encoding wheel 8. The inner periphery of the first encoding wheel 8 is provided with a plurality of spokes 9 at equal intervals. The number of spokes 9 is preferably 48. That is, the first optical sensor 11 will receive 48 optical pulse signals when the first encoding wheel 8 rotates one circle. The number of spokes 9 can be adjusted according to the actual required rotation accuracy. The more the number of spokes 9, the higher the rotation accuracy of the angle adjusting wheel 4. The less the number of spokes 9, the lower the rotation accuracy of the angle adjusting wheel 4. The upper part of the first encoding wheel 8 in the inner wall of the top surface of the operation box 2 is provided with a first infrared emitter 10. The lower part of the first encoding wheel 8 is provided with a first optical sensor 11 in parallel with the first infrared emitter 10. The side of the first optical sensor opposite to the first infrared emitter 10 is provided with two optical sensing devices 12. The first infrared emitter 10 and the first optical sensor 11 are electrically connected with a first processor 13. The first processor 13 is electrically connected with the controller 7.

[0031] As shown in Figure 1 , Figure 2 , the bottom surface of the operation box 2 is provided with four telescopic columns 23. The beginning of the four telescopic columns 23 is provided with a motor 24. The motor 24 is an integrated DC brushless servo motor with the brand of PRMotor and the model of RGM5730PGH. The four motors 24 are fixedly arranged on the inner wall of the bottom surface of the operation box 2. A support base 25 is arranged in parallel with the operation box 2. The end of the four telescopic columns 23 is connected with the top surface of the support base 25. The four telescopic columns 23 are only used to make the operation box 2 shake and adjust the height of the operation box 2.

[0032] As shown in Figure 2As shown, the side wall of the observation room 3 is provided with a fixed block 15 outwardly extending corresponding to the position of the sighting telescope 6, the sighting telescope 6 penetrates the fixed block 15 and is connected with the cavity of the observation room 3, the top surface of the fixed block 15 is provided with a pad plate 32 corresponding to the upper side of the sighting telescope 6, the pad plate 32 is provided with a soft pad on the side away from the observation room 3, so as to protect the eyes of the student when simulating the real scene of shaking, shaking, tilting and the like of the external environment, so that the eyes of the student can be kept at a certain safe distance from the sighting telescope 6, and the shaking of the sighting telescope 6 can be prevented from causing damage to the eyes of the student, the first display screen 16 is arranged in the observation room 3 in parallel with the sighting telescope 6, the top end of the first display screen 16 is connected with the top inner wall of the observation room 3 through the universal shaft 17, the universal shaft 17 can be any universal shaft, for example: a small cross universal joint coupling with a brand of Ouyue and a model of G(single section), the two side surfaces and the back surface of the first display screen 16 are respectively connected with the three side walls of the observation room 3 through the limiting device 18, the limiting device 18 is preferably a spring, and other elastic components such as elastic belts can also be selected, the center position of the height adjusting wheel 5 is provided with a second connecting shaft penetrating through, the end of the second connecting shaft penetrates through the side wall of the observation room 3 and is connected with the second coding wheel 19, a plurality of spokes 9 are arranged at equal intervals on the inner periphery of the second coding wheel 19, the number of spokes 9 is preferably 48, that is, the second optical sensor 21 will receive 48 optical pulse signals every revolution of the second coding wheel 19, the number of spokes 9 can also be adjusted according to the actual required rotation accuracy, the more the number of spokes 9, the higher the accuracy of the rotation of the height adjusting wheel 5, the less the number of spokes 9, the lower the accuracy of the rotation of the height adjusting wheel 5, a second infrared emitter 20 is arranged on the right side of the side wall of the observation room 3 corresponding to the right side of the second coding wheel 19 in the right side of the right side Figure 2 A second optical sensor 21 is arranged on the left side of the second coding wheel 19 in parallel with the second infrared emitter 20, two optical sensing devices 12 are arranged adjacent to each other on the side of the second optical sensor 21 opposite to the second infrared emitter 20, the second infrared emitter 20 and the second optical sensor 21 are electrically connected with the second processor 14, the second processor 14 is electrically connected with the controller 7, the bottom end of the observation room 3 is clamped with a battery 22, a plurality of wire grooves are formed in the bottom end of the observation room 3, a plurality of connecting wires are arranged in the wire grooves, a cooling fan 33 is arranged in the observation room 3 corresponding to the upper side of the battery 22, the cooling fan 33 is electrically connected with the battery 22 and the controller 7 respectively, a plurality of cooling holes are formed in the side wall of the observation room 3 corresponding to the cooling fan 33, the battery 22 is electrically connected with the control panel 1, the controller 7, the first processor 13 and the second processor 14, the first processor 13 and the second processor 14 are both Fudan single-chip microcomputer with a brand of Shenzhen Baijia Sheng Electronics and a model of FM33LG048-LQC-A-G.

[0033] The first infrared emitter 10 and the second infrared emitter 20 are both TTL modulation near-infrared dot laser heads of the model 780nm of the brand KY, and the optical sensing devices 12 are all optical sensors of the model PAW3333DB-TZDU of the brand Yuanxiang.

[0034] As shown in Figure 1 , Figure 2 , the top surface of the observation room 3 is provided with a rotating support frame, which comprises a first connecting rod 26, a second connecting rod 27 and a third connecting rod 28. The initial end of the first connecting rod 26 is fixedly connected to the top surface of the observation room 3, and the initial end of the first connecting rod 26 is located at the center position of the top surface of the observation room 3. The terminal end of the first connecting rod 26 is connected to the initial end of the second connecting rod 27 through a first rotating shaft. The length of the second connecting rod 27 is greater than one-half of the width of the observation room 3. The terminal end of the second connecting rod 27 is connected to the initial end of the third connecting rod 28 through a second rotating shaft. A clamping groove 29 is formed in one side wall of the third connecting rod 28. A second display screen 30 is clamped in the clamping groove 29. At least one notch is formed in the side surface of the clamping groove 29 corresponding to the second display screen 30. The notch can be formed in the top surface and the bottom surface of the clamping groove 29, or in the two side edges of the clamping groove 29. The notch can be formed in any surface. The second display screen 30 can be taken out through the notch. The second display screen 30 can be any display screen or a palm computer. For example, an 8-inch waterproof palm computer of the brand Shenzhen Chenxiang is used.

[0035] A magnet attracting piece (not shown in the figure) is arranged in the clamping groove 29. A magnetic piece is arranged on the back surface of the second display screen 30. The second display screen 30 is magnetically attracted and clamped in the clamping groove 29 through the magnetic piece. The second display screen 30 is magnetically attracted and clamped in the clamping groove 29, so that the clamping groove 29 can form double locking for the second display screen 30. That is, the second display screen 30 can be quickly installed and removed, and at the same time, the second display screen 30 can be stably clamped in the clamping groove 29, so as to prevent damage of the second display screen 30 caused by falling when simulating shaking, shaking, tilting and the like.

[0036] The specific working principle is as follows:

[0037] In use, the instructor operates the controller through the control screen, selects the training scene and confirms the striking target on the control screen, and then projects the picture to the first display screen. The second display screen is opened because the second display screen is a synchronous image of the first display screen, and a circular frame line with a center position and a crosshair is marked on the position corresponding to the sighting telescope on the screen of the second display screen. Therefore, the instructor can observe and guide the aiming operation of the student in real time through the display picture of the second display screen, help the student quickly master the aiming skill, and improve the accuracy and efficiency of aiming.

[0038] After the teaching personnel set up, the student looks at the first display screen through the sighting telescope, and then rotates the angle adjustment wheel and the height adjustment wheel to adjust the picture to move the target to the center of the sighting telescope. When the angle adjustment wheel is rotated, the angle adjustment wheel drives the first encoding wheel to rotate, and the spokes arranged on the first encoding wheel also rotate. The infrared rays emitted from the first infrared emitter are intermittently blocked by the spokes on the first encoding wheel. The infrared rays passing through the gaps between the spokes reach the optical sensing device of the first optical sensor, and then are converted into pulse signals. Because 48 spokes are arranged on the first encoding wheel, the first optical sensor receives 48 light pulse signals when the first encoding wheel rotates one circle. Because two adjacent optical sensing devices are arranged on the first optical sensor, when the first encoding wheel rotates, one sensor receives the infrared rays earlier than the other sensor. For example, when rotating clockwise, the right optical sensing device contacts the infrared rays earlier than the left optical sensing device, and when rotating counterclockwise, the left optical sensing device contacts the infrared rays earlier than the right optical sensing device. Thus, it is determined whether the first encoding wheel (i.e. the angle adjustment wheel) rotates leftward or rightward. The pulse signals are transmitted to the first processor, which calculates the rotation distance and rotation direction of the first encoding wheel according to the number and waveform of the pulse signals, and transmits them to the controller. The controller adjusts the display picture on the first display screen according to the rotation distance and rotation direction of the first encoding wheel. After the angle adjustment is completed, the height adjustment is performed by rotating the height adjustment wheel (the operation principle of the height adjustment wheel is the same as that of the angle adjustment wheel, which is not described here). When the angle adjustment wheel and the height adjustment wheel are rotated, the picture on the first display screen moves as a whole to simulate the movement of the scene in the line of sight during aiming. When the target appears in the center of the sighting telescope, the complete aiming operation is completed.

[0039] During the aiming operation, the teaching personnel can also issue instructions to the four motors through the control screen (the control screen issues commands to the controller) to extend or shorten, or remove the second display screen, and the second display screen issues instructions to the four motors to extend or shorten, so that the four telescopic columns change in height. At this time, the operation box shakes, and because the top end of the first display screen is connected through the universal shaft, the first display screen shakes more than the operation box. At the same time, the limiting devices located on the two side walls and the back of the first display screen generate a pushing force or a pulling force on the first display screen to prevent the first display screen from colliding with the side walls of the observation room due to shaking and causing damage. However, the first display screen will shake within a certain range, and the picture will shake with the first display screen to simulate the shaking of the scene in the line of sight during actual aiming. At this time, the teaching personnel can observe and guide the operation process of the student through the second display screen to help the student quickly master the aiming skill and improve the accuracy and efficiency of aiming.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A sighting principle demonstrator for teaching, comprising an operation box with a control screen embedded on the top surface, an observation chamber and an angle adjusting wheel are sequentially arranged from left to right on the top surface of the operation box adjacent to the control screen, and a sighting scope and a height adjusting wheel are sequentially arranged from top to bottom on the side surface of the observation chamber opposite to the control screen; A fixed through hole is formed on the top surface of the operation box adjacent to the control screen, the observation chamber is clamped in the fixed through hole, a controller is arranged in the operation box corresponding to the lower side of the control screen, a first connecting shaft is arranged through the center of the angle adjusting wheel, the end of the first connecting shaft is connected with a first encoding wheel through the top surface of the operation box, a plurality of spokes are equidistantly arranged on the inner periphery of the first encoding wheel, a first infrared emitter is arranged on the inner wall of the top surface of the operation box corresponding to the upper side of the first encoding wheel, a first optical sensor is arranged in parallel with the first infrared emitter corresponding to the lower side of the first encoding wheel, two optical sensing devices are arranged adjacent to each other on the side opposite to the first infrared emitter, the first infrared emitter and the first optical sensor are electrically connected with a first processor, and the first processor is electrically connected with the controller. A fixed block is arranged on the side wall of the observation chamber corresponding to the position of the sighting scope, the sighting scope is connected with the cavity of the observation chamber through the fixed block, a first display screen is arranged in the observation chamber in parallel with the sighting scope, the top end of the first display screen is connected with the inner wall of the top surface of the observation chamber through a universal shaft, the two side surfaces and the back surface of the first display screen are respectively connected with the three side walls of the observation chamber through limiting devices, a second connecting shaft is arranged through the center of the height adjusting wheel, the end of the second connecting shaft is connected with a second encoding wheel through the side wall of the observation chamber, a plurality of spokes are equidistantly arranged on the inner periphery of the second encoding wheel, a second infrared emitter is arranged on the side wall of the observation chamber corresponding to the right side of the second encoding wheel, a second optical sensor is arranged in parallel with the second infrared emitter corresponding to the left side of the second encoding wheel, two optical sensing devices are arranged adjacent to each other on the side opposite to the second infrared emitter, the second infrared emitter and the second optical sensor are electrically connected with a second processor, the second processor is electrically connected with the controller, a battery is clamped at the bottom end of the observation chamber, and the battery is electrically connected with the control screen, the controller, the first processor and the second processor.

2. A sight principle demonstrator for teaching purposes according to claim 1, characterized in that Four telescopic columns are arranged on the bottom surface of the operation box, motors are arranged at the starting ends of the four telescopic columns, the motors are fixedly arranged on the inner wall of the bottom surface of the operation box, a supporting base is arranged in parallel with the operation box, and the ends of the four telescopic columns are connected with the top surface of the supporting base.

3. A sight principle demonstrator for teaching purposes according to claim 1, characterized in that: The top surface of the observation chamber is provided with a rotating support frame, which comprises a first connecting rod, a second connecting rod and a third connecting rod.

4. A sight principle demonstrator for teaching purposes according to claim 3, characterized in that: A magnetic sheet is arranged in the clamping groove, and the back surface of the second display screen is provided with a magnetic sheet.

5. A sight principle demonstrator for teaching purposes according to claim 1, characterized in that: The height adjusting wheel and the angle adjusting wheel are both provided with a handle.

6. A sight principle demonstrator for teaching purposes according to claim 1, characterized in that: The top surface of the fixed block is provided with a pad plate corresponding to the upper part of the sighting scope.

7. A sight principle demonstrator for teaching purposes according to claim 1, characterized in that: A heat dissipation fan is arranged in the observation chamber corresponding to the upper part of the battery, and the heat dissipation fan is electrically connected with the battery and the controller respectively. A plurality of heat dissipation holes are arranged on the side wall of the observation chamber corresponding to the heat dissipation fan.

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