CN113436505A - Economic management learns teaching and uses combination formula teaching aid - Google Patents
Economic management learns teaching and uses combination formula teaching aid Download PDFInfo
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- CN113436505A CN113436505A CN202110558783.5A CN202110558783A CN113436505A CN 113436505 A CN113436505 A CN 113436505A CN 202110558783 A CN202110558783 A CN 202110558783A CN 113436505 A CN113436505 A CN 113436505A
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- supporting
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
- G09B19/18—Book-keeping or economics
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
Abstract
The invention discloses a combined teaching aid for economic management teaching, and relates to the technical field of teaching aid equipment; a supporting block is fixed at the bottom of the front side of the supporting back plate, a supporting frame is fixed on the supporting block, a plurality of fixing frames are fixed in the supporting frame, a bar-shaped column is arranged on the upper side of each fixing frame, an adjusting mechanism is arranged between each bar-shaped column and each fixing frame, a support is fixed at the bottom of the rear side of the supporting back plate, a fixing support is fixed at the upper end of the right side of each support, a plurality of adjusting supports are arranged on the left side of each fixing support, a movable fixing mechanism is arranged between the bottom of each adjusting support and each support, adjusting seats are arranged in the fixing supports and the adjusting supports, a rolling shaft is arranged in a groove in each fixing support in a screwed mode through a bearing, and an adjusting rope is fixed on each rolling shaft; can remove corresponding graph mechanism according to the drawing demand to produce different types of figures, alleviateed mr's working strength, improve the accurate nature of figure, thereby improved mr's the quality of giving lessons.
Description
Technical Field
The invention relates to the technical field of teaching aid equipment, in particular to a combined teaching aid for economic management science teaching.
Background
The teaching aid is a material object for propagating science and technology and educating people, is a complete scientific and technology medium, and is an indispensable device in teenager scientific and technology activities; in the economic management teaching process, a teaching aid is required to be applied to assist teaching so as to help students understand more clearly and improve the comprehension capacity; for example, in the teaching process of economic management, analysis and processing of a large amount of data can be involved, and related figures such as column diagrams and line diagrams need to be applied for interpretation, so that changes among the data can be more clearly expressed, and the characteristics of being concrete, concise, vivid, popular and easy to understand and clear at a glance are achieved.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings of the prior art, and provides the combined teaching aid for economic management teaching, which is simple in structure, reasonable in design and convenient to use, and can move corresponding graphic mechanisms according to drawing requirements, so that different kinds of graphics can be manufactured, the working strength of teachers is reduced, the graphic accuracy is improved, and the teaching quality of the teachers is improved.
In order to achieve the purpose, the invention adopts the technical scheme that: the universal wheel type solar water heater comprises a base, universal wheels, a supporting seat and a supporting back plate, wherein the universal wheels are fixed on the periphery of the bottom of the base, the supporting seat is fixed on the base, and the supporting back plate is arranged on the upper side of the supporting seat; the adjustable back plate comprises a supporting block, a supporting frame, a fixing frame, strip-shaped columns, an adjusting mechanism, a support, a fixing support, an adjusting rope, a movable fixing mechanism and a height supporting mechanism, wherein the supporting block is fixed at the bottom of the front side of the supporting back plate, the supporting frame is fixed on the supporting block, a plurality of fixing frames are fixed in the supporting frame, the strip-shaped columns are arranged on the upper side of the fixing frame, the adjusting mechanism is arranged between the strip-shaped columns and the fixing frame, the support is fixed at the bottom of the rear side of the supporting back plate, the fixing support is fixed at the upper end of the right side of the support, the plurality of adjusting supports are arranged on the left side of the fixing support, the movable fixing mechanism is arranged between the bottom of the adjusting support and the support, slots are respectively arranged in the fixing support and the adjusting support, the adjusting seat is arranged in each slot, the height supporting mechanism is arranged on the lower side of the adjusting seat, and a rolling shaft is rotatably connected in each slot in the fixing support through a bearing, the rolling shaft is arranged above the adjusting seat, an adjusting rope is fixed on the rolling shaft, the other end of the adjusting rope sequentially penetrates through the fixing support and the adjusting seat in the adjusting support, fixed blocks are symmetrically fixed on the front and back of one side of the adjusting seat in the leftmost adjusting support, a rotating shaft is arranged in the fixing block in a screwed connection mode through a bearing, the tail end of the adjusting rope is wound and fixed on the rotating shaft, a rocking handle is fixed after the rear end of the rotating shaft penetrates through the bearing, a plurality of positioning holes are formed in the rocking handle and the fixing block on the front side of the rocking handle, and positioning columns are sequentially inserted into the positioning holes in the rocking handle and the fixing block from back to front in a screwed connection mode;
the adjusting mechanism comprises an electric push rod, a guide frame and a first hinge seat, the upper side of the second hinge seat is hinged with a push rod through a hinged shaft, the upper end of the push rod sequentially penetrates through the guide seat and a top plate of the fixing frame from bottom to top and then is fixedly connected with the strip-shaped column;
the movable fixing mechanism comprises a guide block, a positioning pin and a sliding block, a groove is formed in a support, an adjusting support is arranged in the groove, the sliding block is fixed at the bottom of the adjusting support, a sliding groove is formed in the support at the bottom of the groove in a penetrating manner, the sliding block is arranged in the sliding groove in a sliding manner from side to side, a guide groove is formed in the support at the rear side of the groove in a penetrating manner, the guide block is fixed at the rear side of the adjusting support, the guide block is arranged in a T-shaped structure, a horizontal end in the guide block is arranged in the guide groove in a sliding manner in a penetrating manner, a vertical end in the guide block is arranged at the outer side of the support, a plurality of locking holes are formed in the supports at the upper side and the lower side of the guide groove, and the positioning pin is inserted into the locking holes after penetrating through the vertical end in the guide block;
the height supporting mechanism comprises a first motor, a worm wheel, an external threaded pipe and an internal threaded pipe, wherein the first motor is respectively fixed on a fixed support and an adjusting support, an output shaft of the first motor penetrates through the fixed support and the adjusting support respectively and then is arranged in a groove, the worm is fixed on the output shaft of the first motor, one side of the worm is meshed with the worm wheel, a rotating shaft is arranged in the worm wheel in a penetrating and fixed mode, the bottom end of the rotating shaft is screwed on the inner bottom surface of the groove through a bearing, the external threaded pipe is fixed at the upper end of the rotating shaft, the internal threaded pipe is screwed on the external threaded pipe through threads, the upper end of the internal threaded pipe is connected and fixed with an adjusting seat, sliding grooves are formed in the front side wall and the rear side wall of the groove in a penetrating mode, sliding blocks are fixed on the front side and the rear side of the internal threaded pipe, and the sliding blocks are arranged in the corresponding sliding grooves in a vertical sliding mode;
the electric push rod and the first motor are connected with an external power supply.
Furthermore, guide rollers are symmetrically screwed in the adjusting seat through bearings in a bilateral mode, adjusting ropes are sequentially wound on the guide rollers, first guide wheels are symmetrically screwed in the adjusting seat in an up-down mode through the bearings at the discharge end of the adjusting seat, the adjusting ropes penetrate between the upper first guide wheels and the lower first guide wheels, second guide wheels are symmetrically screwed in the adjusting seat in an up-down mode through the bearings at the feed end of the adjusting seat in the adjusting support, and the adjusting ropes penetrate between the upper second guide wheels and the lower second guide wheels; the adjusting rope is guided by the first guide wheel and the second guide wheel.
Further, the push rod on the cover establish and be fixed with the boss, the boss sets up in the guide holder, the cover is equipped with the spring on the push rod, the upper end of spring is connected fixedly with the bottom of boss, the bottom of spring is connected fixedly with the interior bottom surface of guide holder, the push rod is when carrying out the altitude mixture control, carry on spacingly through the boss to it, when the roof contact of boss and fixed frame, for the highest catch end of push rod, then be the highest state of bar post.
Further, the right side of supporting seat be fixed with No. two motors, after the output shaft of No. two motors passed the right side wall of supporting seat, be fixed with the pivot, the cover was established and is fixed with a bevel gear in the pivot, the left side upper end meshing of a bevel gear is provided with No. two bevel gears, wear to establish and be fixed with the back shaft in the No. two bevel gears, the bottom of back shaft connects the setting soon in the supporting seat through the bearing, the upper end of back shaft is fixed with a supporting bench, the support backplate is fixed on a supporting bench, No. two motors are connected with external power source, No. two motors start, drive a bevel gear and rotate, make its meshing drive No. two bevel gears rotate, thereby drive the back shaft and rotate, make a supporting bench rotate, thereby drive the support backplate and rotate.
Furthermore, a through groove is formed in the upper side of the support frame, and the strip-shaped column is arranged in the through groove in a penetrating mode; the through groove guides the strip-shaped column.
The working principle of the invention is as follows: when the drawing device is used, the plurality of strip-shaped columns are arranged on the front side of the supporting back plate, the strip-shaped columns form a column diagram by adjusting the heights of the strip-shaped columns, the adjusting ropes are arranged on the rear side of the supporting back plate, and the adjusting ropes form a broken line diagram by driving the adjusting seat to adjust the heights, so that different drawing effects are met; the guide shaft slides in the guide groove by being pushed by the electric push rod, so that the guide frame rotates around a hinged shaft between the guide frame and the first hinged seat, the push rod on the second hinged seat moves in height, the strip-shaped column is adjusted in height, and the push rod is guided by the guide seat and a top plate of the fixed frame in sequence in the moving process; firstly, the positioning column is unscrewed to enable the rocking handle to rotate, the adjusting seat is driven to move in height, the adjusting rope is driven to move in height position, the first motor is started to enable the worm to rotate, the worm is meshed to drive the worm wheel to rotate, so that the external threaded pipe is rotated, the internal threaded pipe is driven to move in height through thread pushing, so that the adjusting seat is driven to move in height, the height of the adjusting rope is changed, the adjusting support is driven to move in the left and right directions, so that the position of the adjusting seat in the left and right directions is changed, the guide block is manually moved in the left and right directions, so that the guide block drives the adjusting support to move, the guide block is inserted and positioned through the positioning pin for limiting, after the positions of the adjusting support and the adjusting seat are adjusted, the rocking handle is manually driven to rotate, so that the rotating shaft drives the adjusting rope to roll, the adjusting rope is fixedly pulled to be in a tight state, and the rocking handle is limited and fixed through the positioning column, so that the adjusting rope is fixed.
After adopting the structure, the invention has the beneficial effects that:
1. the front side of the supporting back plate forms a cylindrical graph and the rear side of the supporting back plate forms a line graph by arranging the corresponding bar-shaped columns and the corresponding adjusting ropes on the front side and the rear side of the supporting back plate, so that different graphs can be manufactured according to different requirements, and a teacher can use the graph conveniently for teaching;
2. the height of the bar-shaped column is changed by driving the bar-shaped column to move in height, so that the column diagram is convenient to operate and control;
3. the position of the adjusting seat and the position of the adjusting bracket are driven to drive the adjusting rope to change, so that the shape of the line graph is changed;
4. a supporting table capable of rotating is additionally arranged at the bottom of the supporting backboard, so that the supporting backboard can be driven to rotate conveniently, and the display position of the strip-shaped column and the adjusting rope is changed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a right side view of fig. 1.
Fig. 3 is a rear side view of fig. 1.
Fig. 4 is a sectional view taken along line a-a in fig. 2.
Fig. 5 is a sectional view taken along line B-B in fig. 2.
Fig. 6 is an enlarged view of the portion C in fig. 4.
Fig. 7 is an enlarged view of a portion D in fig. 5.
Fig. 8 is an enlarged view of a portion E of fig. 5.
Fig. 9 is an enlarged view of portion F of fig. 5.
Fig. 10 is an enlarged view of the portion G in fig. 3.
FIG. 11 is a schematic view of the internal structure of the support base of the present invention.
Description of reference numerals:
the device comprises a base 1, universal wheels 2, a supporting seat 3, a supporting back plate 4, a supporting block 5, a supporting frame 6, a through groove 6-1, a fixing frame 7, a strip-shaped column 8, an adjusting mechanism 9, an electric push rod 9-1, a guide frame 9-2, a first hinged seat 9-3, a second hinged seat 9-4, a push rod 9-5, a guide shaft 9-6, a slot 9-7, a guide groove 9-8, a guide seat 9-9, a boss 9-10, a spring 9-11, a support 10, a groove 10-1, a guide groove 10-2, a locking hole 10-3, a sliding groove 10-4, a fixing support 11, an adjusting support 12, an adjusting rope 13, a moving fixing mechanism 14, a guide block 14-1, a positioning pin 14-2, a sliding block 14-3, a height supporting mechanism 15, a first motor 15-1, a second motor 15-4, a positioning pin 11, a positioning bracket 12, a positioning block 13, a positioning block 9-9, a guide 9, a boss 9-9, a groove 10-3, a height supporting mechanism, a height adjusting mechanism, 15-2 parts of worm, 15-3 parts of worm wheel, 15-4 parts of external threaded pipe, 15-5 parts of internal threaded pipe, 15-6 parts of sliding block, 16 parts of open groove, 16-1 parts of sliding groove, 17 parts of adjusting seat, 17-1 parts of guide roller, 17-2 parts of first guide wheel, 17-3 parts of second guide wheel, 18 parts of rolling shaft, 19 parts of fixing block, 20 parts of rocking handle, 21 parts of positioning hole, 22 parts of positioning column, 23 parts of second motor, 24 parts of first bevel gear, 25 parts of second bevel gear, 26 parts of supporting shaft and 27 parts of supporting table.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to fig. 11, the technical solution adopted by the present embodiment is: the device comprises a base 1, universal wheels 2, a supporting seat 3 and a supporting back plate 4, wherein the universal wheels 2 are fixed on the periphery of the bottom of the base 1 through screws, the supporting seat 3 is fixed on the base 1 in a welding mode, and the supporting back plate 4 is arranged on the upper side of the supporting seat 3; the novel back plate supporting device further comprises a supporting block 5, a supporting frame 6, a fixing frame 7, a strip-shaped column 8, an adjusting mechanism 9, a support 10, a fixing support 11, an adjusting support 12, an adjusting rope 13, a movable fixing mechanism 14 and a height supporting mechanism 15, wherein the supporting block 5 is fixedly welded at the bottom of the front side of the supporting back plate 4, the supporting frame 6 is fixedly welded on the supporting block 5, the three fixing frames 7 are fixedly welded in the supporting frame 6, the strip-shaped column 8 is arranged on the upper side of the fixing frame 7, the adjusting mechanism 9 is arranged between the strip-shaped column 8 and the fixing frame 7, a through groove 6-1 is formed in the upper side of the supporting frame 6, and the strip-shaped column 8 is arranged in the through groove 6-1 in a penetrating manner; a support 10 is welded and fixed at the bottom of the rear side of the supporting back plate 4, a fixed support 11 is welded and fixed at the upper end of the right side of the support 10, three adjusting supports 12 are arranged at the left side of the fixed support 11, a movable fixing mechanism 14 is arranged between the bottom of the adjusting support 12 and the support 10, slots 16 are respectively arranged in the fixed support 11 and the adjusting supports 12, an adjusting seat 17 is arranged in each slot 16, a height supporting mechanism 15 is arranged at the lower side of each adjusting seat 17, a rolling shaft 18 is screwed and arranged in each slot 16 in the fixed support 11 through a bearing, the rolling shaft 18 is arranged above the adjusting seat 17, an adjusting rope 13 is fixed on the rolling shaft 18, the other end of the adjusting rope 13 sequentially penetrates through the adjusting seats 17 in the fixed support 11 and the adjusting support 12, fixed blocks 19 are symmetrically welded and fixed at the front and back of one side of the adjusting seat 17 in the leftmost adjusting support 12, and a rotating shaft is screwed and arranged in each fixed block 19 through a bearing, the tail end of the adjusting rope 13 is wound and fixed on the rotating shaft, the rear end of the rotating shaft penetrates through the bearing and is fixed with a rocking handle 20, the rocking handle 20 and a fixing block 19 on the front side of the rocking handle are provided with a plurality of positioning holes 21, and positioning columns 22 are sequentially screwed and inserted into the rocking handle 20 and the positioning holes 21 in the fixing block 19 from back to front;
a second motor 23 with the model number of 60KTYZ is fixed on the right side of the supporting seat 3 through screws, a rotating shaft is fixedly welded after an output shaft of the second motor 23 penetrates through the right side wall of the supporting seat 3, a first bevel gear 24 is sleeved and fixedly welded on the rotating shaft, a second bevel gear 25 is meshed and arranged at the upper end of the left side of the first bevel gear 24, a supporting shaft 26 penetrates through and is fixedly welded in the second bevel gear 25, the bottom end of the supporting shaft 26 is screwed in the supporting seat 3 through a bearing, the bearing is embedded and fixedly welded in the supporting seat 3, the supporting shaft 26 is inserted and fixedly welded in the bearing, a supporting table 27 is fixedly welded at the upper end of the supporting shaft 26, and the supporting backboard 4 is fixedly welded on the supporting table 27;
the adjusting seat 17 is internally provided with guide rollers 17-1 in a bilaterally symmetrical and screwed connection mode through bearings, the adjusting rope 13 is sequentially wound on the guide rollers 17-1, wherein the discharge end of the adjusting seat 17 is provided with a first guide wheel 17-2 in a vertically symmetrical and screwed connection mode through a bearing, the adjusting rope 13 is arranged between the upper first guide wheel 17-2 and the lower first guide wheel 17-2 in a penetrating mode, the feeding end of the adjusting seat 17 positioned in the adjusting bracket 12 is provided with a second guide wheel 17-3 in a vertically symmetrical and screwed connection mode through a bearing, and the adjusting rope 13 is arranged between the upper second guide wheel 17-3 and the lower second guide wheel 17-3 in a penetrating mode;
the adjusting mechanism 9 comprises an electric push rod 9-1, a guide frame 9-2, a first hinged seat 9-3, a second hinged seat 9-4, a push rod 9-5 and a guide shaft 9-6, wherein the first hinged seat 9-3 and the electric push rod 9-1 are fixed on an inner bottom plate of the fixing frame 7 from left to right in sequence by screws, the guide frame 9-2 is hinged on the upper side of the first hinged seat 9-3 through a hinged shaft, a slot 9-7 is formed in the right side of the guide frame 9-2, the pushing end of the electric push rod 9-1 is inserted into the slot 9-7, guide grooves 9-8 are formed in the guide frame 9-2 on the front side and the rear side of the slot 9-7 in a penetrating manner, the guide shaft 9-6 is embedded and welded and fixed in the pushing end of the electric push rod 9-1, the guide shaft 9-6 is slidably arranged in the corresponding guide groove 9-8, a guide seat 9-9 is welded and fixed on the inner top surface of the fixed frame 7, a second hinge seat 9-4 is welded and fixed on the upper side of the guide frame 9-2, the second hinge seat 9-4 is arranged between the first hinge seat 9-3 and the slot 9-7, a push rod 9-5 is hinged on the upper side of the second hinge seat 9-4 through a hinge shaft, the upper end of the push rod 9-5 sequentially penetrates through the guide seat 9-9 and the top plate of the fixed frame 7 from bottom to top, the spring is welded and fixed with the strip-shaped column 8, a boss 9-10 is sleeved on the push rod 9-5 and is welded and fixed with the boss 9-10, the boss 9-10 is arranged in the guide seat 9-9, a spring 9-11 is sleeved on the push rod 9-5, the upper end of the spring 9-11 is welded and fixed with the bottom of the boss 9-10, and the bottom of the spring 9-11 is welded and fixed with the inner bottom surface of the guide seat 9-9;
the movable fixing mechanism 14 comprises a guide block 14-1, a positioning pin 14-2 and a slide block 14-3, a groove 10-1 is formed on a support 10, an adjusting support 12 is arranged in the groove 10-1, the bottom of the adjusting support 12 is fixedly welded with the slide block 14-3, a sliding groove 10-4 is formed on the support 10 positioned at the bottom of the groove 10-1 in a penetrating manner, the slide block 14-3 is arranged in the sliding groove 10-4 in a sliding manner in a left-right sliding manner, a guide groove 10-2 is formed on the support 10 positioned at the rear side of the groove 10-1 in a penetrating manner, a guide block 14-1 is fixedly welded at the rear side of the adjusting support 12, the guide block 14-1 is arranged in a T-shaped structure, the horizontal end of the guide block 14-1 is arranged in the guide groove 10-2 in a sliding manner, the vertical end of the guide block 14-1 is arranged at the outer side of the support 10, a plurality of locking holes 10-3 are formed in the support 10 positioned on the upper side and the lower side of the guide groove 10-2, and the positioning pin 14-2 is inserted into the locking holes 10-3 after penetrating through the vertical end of the guide block 14-1;
the height supporting mechanism 15 comprises a first motor 15-1, a worm 15-2, a worm wheel 15-3, an external threaded pipe 15-4 and an internal threaded pipe 15-5, the first motor 15-1 with the model of 60KTYZ is respectively fixed on a fixed support 11 and an adjusting support 12 by screws, an output shaft of the first motor 15-1 respectively penetrates through the fixed support 11 and the adjusting support 12 and is arranged in a slot 16, the worm 15-2 is fixedly welded on the output shaft of the first motor 15-1, one side of the worm 15-2 is meshed with the worm wheel 15-3, a rotating shaft is arranged and fixed in the worm wheel 15-3 in a penetrating way, the bottom end of the rotating shaft is arranged on the inner bottom surface of the slot 16 in a screwing way through a bearing, the external threaded pipe 15-4 is fixedly welded at the upper end of the rotating shaft, the internal threaded pipe 15-5 is arranged on the external threaded pipe 15-4 in a screwing way through threads, the upper end of the internal threaded pipe 15-5 is welded and fixed with the adjusting seat 17, sliding grooves 16-1 are respectively arranged on the front side wall and the rear side wall of the open groove 16 in a penetrating way, sliding blocks 15-6 are respectively welded and fixed on the front side wall and the rear side wall of the internal threaded pipe 15-5, and the sliding blocks 15-6 are arranged in the corresponding sliding grooves 16-1 in a vertical sliding way;
the electric push rod 9-1, the first motor 15-1 and the second motor 23 are all connected with an external power supply through power lines.
The working principle of the specific embodiment is as follows: when the drawing device is used, the plurality of strip-shaped columns 8 are arranged on the front side of the supporting back plate 4, the plurality of strip-shaped columns 8 form a column diagram by adjusting the heights of the strip-shaped columns 8, the adjusting ropes 13 are arranged on the rear side of the supporting back plate 4, and the adjusting ropes 13 form a broken line diagram by driving the adjusting seats 17 to adjust the heights, so that different drawing effects are met; the guide shaft 9-6 slides in the guide groove 9-8 by being pushed by the electric push rod 9-1, so that the guide frame 9-2 rotates around a hinged shaft between the guide frame and the first hinged seat 9-3, the push rod 9-5 on the second hinged seat 9-4 moves in height, the strip-shaped column 8 is adjusted in height, the push rod 9-5 is guided by the guide seat 9-9 and a top plate of the fixed frame 7 in the moving process, and when the boss 9-10 is in contact with the top plate of the fixed frame 7, the highest pushing end of the push rod 9-5 is the highest state of the strip-shaped column 8; the positioning post 22 is firstly screwed off to enable the rocking handle 20 to rotate, the adjusting rope 13 is driven to move in height position by driving the adjusting seat 17 to move in height, the first motor 15-1 is started to enable the worm 15-2 to rotate, the worm wheel 15-3 is driven to rotate by meshing, the external threaded pipe 15-4 is driven to rotate, the internal threaded pipe 15-5 is driven to move in height by screw thread pushing, the adjusting seat 17 is driven to move in height, the height of the adjusting rope 13 is changed, the position of the adjusting seat 17 in left and right direction is driven by driving the adjusting bracket 12 to move in left and right direction, the position of the adjusting rope 13 is changed, the guide block 14-1 is manually moved in left and right direction to drive the adjusting bracket 12 to move, and the positioning pin 14-2 is inserted for limiting, after the positions of the adjusting bracket 12 and the adjusting seat 17 are adjusted, the rocking handle 20 is manually driven to rotate, the rotating shaft drives the adjusting rope 13 to roll, the adjusting rope 13 is fixedly pulled to be in a tight state, and the rocking handle 20 is limited and fixed through the positioning column 22, so that the adjusting rope 13 is fixed; in actual use, in order to use the column diagram and the line diagram conveniently, the second motor 23 is started to drive the first bevel gear 24 to rotate, so that the first bevel gear 24 is meshed with the second bevel gear 25 to rotate, the supporting platform 27 is driven to rotate, the supporting backboard 4 is driven to rotate, and the display directions of the strip-shaped column 8 and the adjusting rope 13 are changed.
After adopting above-mentioned structure, this embodiment beneficial effect does:
1. the front side and the rear side of the support backboard 4 form a cylindrical graph and the rear side of the support backboard 4 forms a line graph by arranging the corresponding bar-shaped columns 8 and the corresponding adjusting ropes 13 at the front side and the rear side of the support backboard 4, so that different graphs can be manufactured according to different requirements, and a teacher can use the graph for teaching more conveniently;
2. the height of the bar-shaped column 8 is changed by driving the bar-shaped column 8 to move in height, so that the column diagram is convenient to control;
3. the position of the adjusting seat 17 and the adjusting bracket 12 is driven to drive the adjusting rope 13 to change, so that the shape of the line graph is changed;
4. the supporting platform 27 capable of rotating is additionally arranged at the bottom of the supporting backboard 4, so that the supporting backboard 4 can be driven to rotate conveniently, and the display positions of the strip-shaped columns 8 and the adjusting ropes 13 are changed.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. A combined teaching aid for economic management science teaching comprises a base (1), universal wheels (2), supporting seats (3) and supporting back plates (4), wherein the universal wheels (2) are fixed on the periphery of the bottom of the base (1), the supporting seats (3) are fixed on the base (1), and the supporting back plates (4) are arranged on the upper sides of the supporting seats (3); the method is characterized in that: the novel back plate support device is characterized by further comprising a supporting block (5), a supporting frame (6), a fixing frame (7), a strip-shaped column (8), an adjusting mechanism (9), a support (10), a fixing support (11), an adjusting support (12), adjusting ropes (13), a movable fixing mechanism (14) and a height supporting mechanism (15), wherein the supporting block (5) is fixed at the bottom of the front side of the back plate (4), the supporting frame (6) is fixed on the supporting block (5), a plurality of fixing frames (7) are fixed in the supporting frame (6), the strip-shaped column (8) is arranged on the upper side of the fixing frame (7), the adjusting mechanism (9) is arranged between the strip-shaped column (8) and the fixing frame (7), the support (10) is fixed at the bottom of the rear side of the back plate (4), the fixing support (11) is fixed at the upper end of the right side of the support (10), and a plurality of adjusting supports (12) are arranged on the left side of the fixing support (11), a movable fixing mechanism (14) is arranged between the bottom of the adjusting bracket (12) and the support (10), slots (16) are respectively arranged in the fixing bracket (11) and the adjusting bracket (12), an adjusting seat (17) is arranged in each slot (16), a height supporting mechanism (15) is arranged on the lower side of each adjusting seat (17), a rolling shaft (18) is arranged in each slot (16) in the fixing bracket (11) in a screwed connection mode through a bearing, the rolling shaft (18) is arranged above the adjusting seat (17), an adjusting rope (13) is fixed on each rolling shaft (18), the other end of each adjusting rope (13) sequentially penetrates through the fixing bracket (11) and the adjusting seat (17) in the adjusting bracket (12), fixed blocks (19) are symmetrically fixed on the front and back of one side of the adjusting seat (17) in the leftmost adjusting bracket (12), and a rotating shaft is arranged in each fixed block (19) in a screwed connection mode through a bearing, the tail end of the adjusting rope (13) is wound and fixed on the rotating shaft, the rear end of the rotating shaft penetrates through the bearing and is fixed with a rocking handle (20), the rocking handle (20) and a fixing block (19) on the front side of the rocking handle are provided with a plurality of positioning holes (21), and positioning columns (22) are sequentially screwed from back to front and inserted into the rocking handle (20) and the positioning holes (21) in the fixing block (19);
the adjusting mechanism (9) comprises an electric push rod (9-1), a guide frame (9-2), a first hinged seat (9-3), a second hinged seat (9-4), a push rod (9-5) and a guide shaft (9-6), the first hinged seat (9-3) and the electric push rod (9-1) are sequentially fixed on an inner bottom plate of the fixing frame (7) from left to right, the guide frame (9-2) is hinged on the upper side of the first hinged seat (9-3) through a hinged shaft, a slot (9-7) is formed in the right side of the guide frame (9-2), the pushing end of the electric push rod (9-1) is inserted into the slot (9-7), a guide groove (9-8) is formed in the guide frame (9-2) positioned on the front side and the rear side of the slot (9-7) in a penetrating manner, the guide shaft (9-6) is embedded and fixed in the pushing end of the electric push rod (9-1), the guide shafts (9-6) are slidably arranged in the corresponding guide grooves (9-8), the inner top surface of the fixing frame (7) is fixedly provided with guide seats (9-9), the upper side of the guide frame (9-2) is fixedly provided with a second hinging seat (9-4), the second hinging seat (9-4) is arranged between the first hinging seat (9-3) and the slot (9-7), the upper side of the second hinging seat (9-4) is hinged with a push rod (9-5) through a hinging shaft, and the upper end of the push rod (9-5) sequentially penetrates through the guide seats (9-9) and a top plate of the fixing frame (7) from bottom to top and then is fixedly connected with the strip-shaped column (8);
the movable fixing mechanism (14) comprises a guide block (14-1), a positioning pin (14-2) and a sliding block (14-3), a groove (10-1) is formed in a support (10), an adjusting support (12) is arranged in the groove (10-1), the sliding block (14-3) is fixed at the bottom of the adjusting support (12), a sliding groove (10-4) is formed in the support (10) at the bottom of the groove (10-1) in a penetrating manner, the sliding block (14-3) is arranged in the sliding groove (10-4) in a left-right sliding manner, the guide groove (10-2) is formed in the support (10) at the rear side of the groove (10-1) in a penetrating manner, the guide block (14-1) is fixed at the rear side of the adjusting support (12), the guide block (14-1) is arranged in a T-shaped structure, the horizontal end of the guide block (14-1) is arranged in the guide groove (10-2) in a penetrating manner in a sliding manner, the vertical end in the guide block (14-1) is arranged on the outer side of the support (10), a plurality of locking holes (10-3) are formed in the support (10) positioned on the upper side and the lower side of the guide groove (10-2), and the positioning pin (14-2) penetrates through the vertical end in the guide block (14-1) and is inserted into the locking holes (10-3);
the height supporting mechanism (15) comprises a first motor (15-1), a worm (15-2), a worm wheel (15-3), an external threaded pipe (15-4) and an internal threaded pipe (15-5), the first motor (15-1) is respectively fixed on the fixed support (11) and the adjusting support (12), an output shaft of the first motor (15-1) passes through the fixed support (11) and the adjusting support (12) respectively and is arranged in the slot (16), the worm (15-2) is fixed on the output shaft of the first motor (15-1), one side of the worm (15-2) is meshed with the worm wheel (15-3), a rotating shaft is arranged in the worm wheel (15-3) in a penetrating manner and is fixed, the bottom end of the rotating shaft is screwed on the inner bottom surface of the slot (16) through a bearing, the external threaded pipe (15-4) is fixed at the upper end of the rotating shaft, an internal threaded pipe (15-5) is screwed on the external threaded pipe (15-4) through threads, the upper end of the internal threaded pipe (15-5) is fixedly connected with an adjusting seat (17), sliding grooves (16-1) are respectively formed in the front side wall and the rear side wall of the open groove (16) in a penetrating manner, sliding blocks (15-6) are respectively fixed on the front side wall and the rear side wall of the internal threaded pipe (15-5), and the sliding blocks (15-6) are arranged in the corresponding sliding grooves (16-1) in a vertical sliding manner;
the electric push rod (9-1) and the first motor (15-1) are connected with an external power supply.
2. The combined teaching aid for economic management science teaching according to claim 1, characterized in that: the adjusting device is characterized in that guide rollers (17-1) are symmetrically and spirally connected in the adjusting seat (17) left and right through bearings, adjusting ropes (13) are sequentially wound on the guide rollers (17-1), wherein the discharge end of the adjusting seat (17) is symmetrically and spirally connected with first guide wheels (17-2) up and down through bearings, the adjusting ropes (13) penetrate between the upper first guide wheels (17-2) and the lower first guide wheels (17-2), the feeding end of the adjusting seat (17) in the adjusting bracket (12) is symmetrically and spirally connected with second guide wheels (17-3) up and down through bearings, and the adjusting ropes (13) penetrate between the upper second guide wheels (17-3); the adjusting rope (13) is guided by a first guide wheel (17-2) and a second guide wheel (17-3).
3. The combined teaching aid for economic management science teaching according to claim 1, characterized in that: the push rod (9-5) is sleeved and fixed with a boss (9-10), the boss (9-10) is arranged in the guide seat (9-9), the push rod (9-5) is sleeved with a spring (9-11), the upper end of the spring (9-11) is fixedly connected with the bottom of the boss (9-10), the bottom of the spring (9-11) is fixedly connected with the inner bottom surface of the guide seat (9-9), the push rod (9-5) is limited through the boss (9-10) when moving in height, and when the boss (9-10) is in contact with the top plate of the fixed frame (7), the push rod is the highest pushing end of the push rod (9-5), and then is the highest state of the bar-shaped column (8).
4. The combined teaching aid for economic management science teaching according to claim 1, characterized in that: a second motor (23) is fixed on the right side of the supporting seat (3), a rotating shaft is fixed after an output shaft of the second motor (23) penetrates through the right side wall of the supporting seat (3), a first bevel gear (24) is sleeved and fixed on the rotating shaft, a second bevel gear (25) is meshed and arranged at the upper end of the left side of the first bevel gear (24), a supporting shaft (26) penetrates through and is fixed in the second bevel gear (25), the bottom end of the supporting shaft (26) is screwed and arranged in the supporting seat (3) through a bearing, a supporting table (27) is fixed at the upper end of the supporting shaft (26), a supporting back plate (4) is fixed on the supporting table (27), the second motor (23) is connected with an external power supply, the second motor (23) is started to drive the first bevel gear (24) to rotate, so that the meshing drives the second bevel gear (25) to rotate, the supporting shaft (26) to rotate, and the supporting table (27) to rotate, thereby driving the support backboard (4) to rotate.
5. The combined teaching aid for economic management science teaching according to claim 1, characterized in that: a through groove (6-1) is formed in the upper side of the support frame (6), and the strip-shaped column (8) is arranged in the through groove (6-1) in a penetrating mode; the through groove (6-1) guides the strip-shaped column (8).
6. The combined teaching aid for economic management science teaching according to claim 1, characterized in that: the working principle is as follows: when the drawing device is used, the plurality of strip-shaped columns (8) are arranged on the front side of the supporting back plate (4), the plurality of strip-shaped columns (8) form a cylindrical diagram by adjusting the heights of the strip-shaped columns (8), the adjusting rope (13) is arranged on the rear side of the supporting back plate (4), and the adjusting rope (13) forms a broken line diagram by driving the adjusting seat (17) to adjust the heights, so that different drawing effects are met; the guide shaft (9-6) slides in the guide groove (9-8) by being pushed by the electric push rod (9-1), so that the guide frame (9-2) rotates around a hinge shaft between the guide frame and the first hinge seat (9-3), the push rod (9-5) on the second hinge seat (9-4) moves in height, the strip-shaped column (8) is adjusted in height, and the push rod (9-5) is guided by the guide seat (9-9) and a top plate of the fixed frame (7) in the moving process; firstly, the positioning column (22) is unscrewed to enable the rocking handle (20) to rotate, the adjusting rope (13) is driven to move in the height position by driving the adjusting seat (17) to move in the height position, the first motor (15-1) is started to enable the worm (15-2) to rotate, the worm wheel (15-3) is driven to rotate by meshing, the external threaded pipe (15-4) is driven to rotate, the internal threaded pipe (15-5) is driven to move in the height position by screw thread pushing, the adjusting seat (17) is driven to move in the height position, the height of the adjusting seat (17) is changed, the height of the adjusting rope (13) is changed, the adjusting support (12) is driven to move in the left and right directions, the position of the adjusting seat (17) is driven to move in the left and right directions, the position of the adjusting rope (13) is changed, and the guide block (14-1) is manually moved in the left and right directions, the adjusting device is enabled to drive the adjusting support (12) to move, the inserting and the inserting are carried out for limiting through the positioning pin (14-2), after the positions of the adjusting support (12) and the adjusting seat (17) are adjusted, the rocking handle (20) is manually driven to rotate, the rotating shaft drives the adjusting rope (13) to roll, the adjusting rope (13) is fixedly pulled to be in a tight state, the rocking handle (20) is enabled to be limited and fixed through the positioning column (22), and therefore the adjusting rope (13) is fixed.
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| CN202110558783.5A CN113436505B (en) | 2021-05-21 | 2021-05-21 | Economic management learns teaching and uses combination formula teaching aid |
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| CN202110558783.5A CN113436505B (en) | 2021-05-21 | 2021-05-21 | Economic management learns teaching and uses combination formula teaching aid |
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| CN113436505B (en) | 2023-04-11 |
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