CN109270776B

CN109270776B - Teaching projector capable of comprehensively adjusting interest added by playing historical contents

Info

Publication number: CN109270776B
Application number: CN201811506815.1A
Authority: CN
Inventors: 王武; 王晓艳; 周鹏; 王春霞; 齐婉华
Original assignee: Zhengzhou University of Aeronautics
Current assignee: Zhengzhou University of Aeronautics
Priority date: 2018-12-10
Filing date: 2018-12-10
Publication date: 2021-11-12
Anticipated expiration: 2038-12-10
Also published as: CN109270776A

Abstract

The invention relates to the technical field of teaching aids, in particular to a comprehensively-adjustable teaching projector with increased interest in playing historical contents. This play historical content increases rotation that can comprehensively adjust teaching projecting apparatus of taste passes through first motor among the elevating system and drives the inner tube rotation that first gear rotation promoted first pivot, reciprocating of vertical axis direction can be done to the bottom of screw rod, can adjust the height of projecting apparatus according to the teaching requirement, rotary mechanism drives second gear rotation through the second motor and promotes third gear rotation, third gear rotation drives the cylinder and promotes the projecting apparatus rotation, can adjust the angle and the direction of projecting apparatus, the teacher's use has been made things convenient for, teaching efficiency is improved, therefore, the clothes hanger is strong in practicability.

Description

Teaching projector capable of comprehensively adjusting interest added by playing historical contents

Technical Field

The invention relates to the technical field of teaching aids, in particular to a teaching projector capable of being adjusted comprehensively and increasing interest in playing historical contents.

Background

The projector is an optical instrument which enlarges the outline of a workpiece by using an optical element and projects the outline onto a screen, can be used for measuring the outline by using transmitted light and measuring the surface shape of a non-through hole and observing the surface of the part by using reflected light, is particularly suitable for measuring complex outlines and small workpieces, such as clock parts, stamping parts, electronic components, templates, dies, threads, gears, forming tools and the like, has high inspection efficiency and convenient use, is widely applied to metering chambers and production workshops, the projector is particularly suitable for the industries of instruments and meters and clocks, and is also called a projector, which is equipment capable of projecting images or videos onto a curtain, the projector can be connected with a computer, a VCD, a DVD, a BD, a game machine, a DV and the like through different interfaces to play corresponding video signals, and is widely applied to families, offices, schools and entertainment places at present; in the existing teaching, history becomes a necessary subject for teaching, history records and explains the innovation of human progress historical events and time, the history of things and past facts, and for many students, history is a rather boring subject, so that independent blackboard writing and textbooks cannot meet the existing teaching requirements.

Disclosure of Invention

The invention aims to provide a teaching projector capable of comprehensively adjusting the play history content to increase interest so as to solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the following technical scheme:

the teaching projector capable of being comprehensively adjusted and increasing interest in playing historical contents comprises a projector, wherein an adjusting box is placed at the top end of the projector, the adjusting box is fixed on a wall surface or other preset positions through screws at the top ends of the left side and the right side of the adjusting box, a sliding groove is formed in the left side surface of the inner wall of the adjusting box, a lifting mechanism is arranged at the top end of an inner cavity of the adjusting box, a rotating mechanism is arranged at the bottom end of the inner cavity of the adjusting box, and the bottom end of the rotating mechanism is connected with the projector through screws;

the lifting mechanism comprises a first motor, the first motor is externally connected with a power supply, a first gear is welded at the right end of the output end of the first motor, a transverse plate is welded at the bottom end of the first motor, the left end and the right end of the transverse plate are clamped with the inner wall of the adjusting box, a screw barrel is welded at the center position of the bottom end of the transverse plate, the center position of the top end of the transverse plate is welded with the outer barrel of the first rotating shaft, a groove is formed in the upper surface of the inner barrel of the first rotating shaft, the groove is matched and connected with the first gear, a screw rod is in threaded connection with the center position of the top end of the first rotating shaft, the bottom end of the screw rod sequentially penetrates through the first rotating shaft, the transverse plate and the screw barrel, and the screw rod is in threaded connection with the screw barrel;

the rotary mechanism comprises a second motor, the second motor is externally connected with a power supply, a first connecting plate is welded on the left side of the second motor, a sliding rod is welded on the left side of the first connecting plate, the bottom end of an output shaft of the second motor is welded with a second gear, a second connecting plate is welded on the right side of the second motor, the right end of the second connecting plate is welded with an outer barrel of a second rotating shaft, an inner barrel of the second rotating shaft is welded with the bottom end of a screw rod, a rectangular plate is welded on the bottom end of the second rotating shaft, a third rotating shaft is placed at the bottom end of the rectangular plate, the rectangular plate is welded with the inner barrel of the third rotating shaft, a third gear is welded at the bottom end of the outer barrel of the third rotating shaft, the third gear is in gear connection with the second gear, and a cylinder is welded at the bottom end of the third gear.

Preferably, the sliding groove and the sliding rod are both in a T shape, and the sliding groove is in clearance fit with the sliding rod.

Preferably, the number of the grooves is not less than twelve.

Preferably, the thread directions of the first rotating shaft and the inner cavity of the screw cylinder are the same as the thread direction of the screw.

Preferably, the tooth pitch of the second gear is the same as the tooth pitch of the third gear.

The invention provides a teaching projector with increased interest in playing historical contents and capable of being adjusted comprehensively, which has the beneficial effects that:

1. according to the invention, the rotation of the first motor in the lifting mechanism drives the first gear to rotate so as to push the inner cylinder of the first rotating shaft to rotate, the screw rod is respectively in threaded connection with the inner cylinder of the first rotating shaft and the screw cylinder, the bottom end of the screw rod can move up and down in the vertical axis direction, and the height of the projector can be adjusted according to teaching requirements;

2. according to the invention, the rotating mechanism drives the second gear to rotate through the second motor so as to push the third gear to rotate, the top end of the third gear is welded with the outer barrel of the third rotating shaft, the third gear can rotate on the third rotating shaft but does not drive the outer barrel of the second rotating shaft to rotate, the third gear rotates to drive the cylinder to push the projector to rotate, the angle and the direction of the projector can be adjusted, the use by a teacher is facilitated, the teaching efficiency is improved, and the practicability is strong.

Drawings

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

FIG. 2 is a schematic structural diagram of the lifting mechanism of the present invention;

FIG. 3 is a schematic structural view of the rotating mechanism of the present invention;

FIG. 4 is a top view of the first shaft of the present invention.

In the figure: 1. adjusting box, 2, spout, 3, elevating system, 31, first motor, 32, diaphragm, 33, first gear, 34, first pivot, 35, recess, 36, screw rod, 37, the spiral shell, 4, rotary mechanism, 41, second motor, 42, first connecting plate, 43, slide bar, 44, second gear, 45, second connecting plate, 46, second pivot, 47, third pivot, 48, third gear, 49, cylinder, 5, projecting apparatus.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a teaching projector capable of comprehensively adjusting and increasing interest of playing history content comprises a projector 5, an adjusting box 1 is placed at the top end of the projector 5, the adjusting box 1 is fixed on a wall surface or other preset positions at the top ends of the left side and the right side of the adjusting box 1 through screws, a chute 2 is formed in the left side surface of the inner wall of the adjusting box 1, a lifting mechanism 3 is arranged at the top end of the inner cavity of the adjusting box 1, the lifting mechanism 3 comprises a first motor 31, the first motor 31 is of a type MR-J2S-10A and is connected with an external power supply, the external power supply is 380V alternating current, a first gear 33 is welded at the right end of the output end of the first motor 31, a transverse plate 32 is welded at the bottom end of the first motor 31, the left end and the right end of the transverse plate 32 are clamped with the inner wall of the adjusting box 1, a screw cylinder 37 is welded at the center position of the bottom end of the transverse plate 32, the center position of the top end of the transverse plate 32 is welded with an outer cylinder of the first rotating shaft 34, the upper surface of the inner cylinder of the first rotating shaft 34 is provided with grooves 35, the number of the grooves 35 is not less than twelve, the grooves 35 are matched and connected with a first gear 33, the top center position of the first rotating shaft 34 is in threaded connection with a screw rod 36, the bottom end of the screw rod 36 sequentially penetrates through the first rotating shaft 34, a transverse plate 32 and a screw cylinder 37, the screw rod 36 is in threaded connection with the screw cylinder 37, the thread directions of inner cavities of the first rotating shaft 34 and the screw cylinder 37 are the same as the thread direction of the screw rod 36, the bottom end of the inner cavity of the adjusting box 1 is provided with a rotating mechanism 4, the rotating mechanism 4 comprises a second motor 41, the model of the second motor is R107R77 and is connected with an external power supply, the external power supply is 380V alternating current, the second motor 41 is externally connected with a power supply, the left side of the second motor 41 is welded with a first connecting plate 42, the left side of the first connecting plate 42 is welded with a sliding rod 43, the sliding grooves 2 and the sliding rods 43 are both in a T shape, and the sliding grooves 2 are in clearance fit with the sliding rods 43, the bottom end of an output shaft of the second motor 41 is welded with a second gear 44, a second connecting plate 45 is welded on the right side of the second motor 41, the right end of the second connecting plate 45 is welded with an outer cylinder of a second rotating shaft 46, an inner cylinder of the second rotating shaft 46 is welded with the bottom end of the screw 36, a rectangular plate is welded at the bottom end of the second rotating shaft 46, a third rotating shaft 47 is placed at the bottom end of the rectangular plate and is welded with the inner cylinder of the third rotating shaft 47, a third gear 48 is welded at the bottom end of the outer cylinder of the third rotating shaft 47, the third gear 48 is in tooth joint with the second gear 44, the tooth space of the second gear 44 is the same as that of the third gear 48, a cylinder 49 is welded at the bottom end of the third gear 48, and the bottom end of the rotating mechanism 4 is in screw connection with the projector 5.

The working principle is as follows: when the projector is used, firstly, the power supply 31 of the first motor is turned on, the first motor 31 starts to work to drive the first gear 33 to rotate clockwise, the first gear 33 is matched and connected with the groove 35 arranged on the upper surface of the inner cylinder of the first rotating shaft 34, the inner cylinder of the first rotating shaft 34 can be driven by the first gear 33 to rotate clockwise, the inner cylinder of the first rotating shaft 34 is in threaded connection with the screw rod 36 through the inner cylinder of the first rotating shaft 34, the screw rod 36 is in threaded connection with the screw cylinder 37, the screw rod 36 can be driven to move up and down in the vertical axis direction by the rotation of the first rotating shaft 34 until the required height is adjusted, then, the power supply of the second motor 41 is turned on, the second motor 41 starts to work to drive the second gear 44 to rotate clockwise, the second gear 44 is in toothed connection with the third gear 48 through the second gear 44, the second gear 44 drives the third gear 48 to rotate without rotating the moment plate, the third gear 48 rotates to drive the cylinder 49 to drive the projector 5 to rotate, the angle of the projector 5 is convenient to adjust, the practicability is high, and the application range is wide.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a but teaching projecting apparatus is adjusted comprehensively of play historical content increases taste, includes projecting apparatus (5), its characterized in that: an adjusting box (1) is placed at the top end of the projector (5), the adjusting box (1) is fixed on a wall surface or other preset positions through screws at the top ends of the left side and the right side of the adjusting box (1), a sliding groove (2) is formed in the left side surface of the inner wall of the adjusting box (1), a lifting mechanism (3) is arranged at the top end of an inner cavity of the adjusting box (1), a rotating mechanism (4) is arranged at the bottom end of the inner cavity of the adjusting box (1), and the bottom end of the rotating mechanism (4) is in screw connection with the projector (5);

the lifting mechanism (3) comprises a first motor (31), the first motor (31) is externally connected with a power supply, a first gear (33) is welded at the right end of the output end of the first motor (31), a transverse plate (32) is welded at the bottom end of the first motor (31), the transverse plate (32) is connected with the inner wall of the adjusting box (1) in a clamping manner at the left end and the right end, a screw cylinder (37) is welded at the bottom center position of the transverse plate (32), the top center position of the transverse plate (32) is welded with the outer cylinder of a first rotating shaft (34), a groove (35) is formed in the upper surface of the inner cylinder of the first rotating shaft (34), the groove (35) is connected with the first gear (33) in a matching manner, a screw rod (36) is connected to the top center position of the first rotating shaft (34), and the bottom end of the screw rod (36) sequentially penetrates through the first rotating shaft (34), the transverse plate (32) and the screw cylinder (37), the screw rod (36) is in threaded connection with the screw cylinder (37);

the rotating mechanism (4) comprises a second motor (41), the second motor (41) is externally connected with a power supply, a first connecting plate (42) is welded on the left side of the second motor (41), a sliding rod (43) is welded on the left side of the first connecting plate (42), the bottom end of an output shaft of the second motor (41) is welded with a second gear (44), a second connecting plate (45) is welded on the right side of the second motor (41), the right end of the second connecting plate (45) is welded with an outer barrel of a second rotating shaft (46), the inner barrel of the second rotating shaft (46) is welded with the bottom end of a screw rod (36), a rectangular plate is welded at the bottom end of the second rotating shaft (46), a third rotating shaft (47) is placed at the bottom end of the rectangular plate and is welded with the inner barrel of the third rotating shaft (47), a third gear (48) is welded at the bottom end of the outer barrel of the third rotating shaft (47), the third gear (48) is in gear joint with the second gear (44), and a cylinder (49) is welded at the bottom end of the third gear (48).

2. The projector for teaching and learning with comprehensive adjustment and increased interest in playing history contents as claimed in claim 1, wherein the sliding groove (2) and the sliding bar (43) are both "T" shaped, and the sliding groove (2) is in clearance fit with the sliding bar (43).

3. The fully adjustable educational projector with increased play history content fun according to claim 1, wherein the number of the grooves (35) is not less than twelve.

4. The projector as claimed in claim 1, wherein the thread direction of the inner cavity of the first rotary shaft (34) and the screw cylinder (37) is the same as the thread direction of the screw (36).

5. The universally adjustable educational projector with increased play history content fun according to claim 1, wherein the pitch of teeth of the second gear (44) is the same as the pitch of teeth of the third gear (48).