CN112140775B - Geometry teaching aid with folding function of accomodating for mechanical drawing - Google Patents
Geometry teaching aid with folding function of accomodating for mechanical drawing Download PDFInfo
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- CN112140775B CN112140775B CN202011020078.1A CN202011020078A CN112140775B CN 112140775 B CN112140775 B CN 112140775B CN 202011020078 A CN202011020078 A CN 202011020078A CN 112140775 B CN112140775 B CN 112140775B
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- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 239000004744 fabric Substances 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/001—Mathematical drawing instruments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/40—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by means of coilable or bendable legs or spiral shaped legs
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
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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
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Toys (AREA)
Abstract
The invention discloses a geometric teaching aid with a folding and containing function for mechanical drawing, and relates to the technical field of mechanical drawing teaching aids. According to the invention, by arranging the teaching aid mechanism, the first slide bar slides to pull the limiting magnetic ring to be separated from the third magnet, the clamping seat rotates to deflect to adjust different orientations of the geometric teaching aid body, the base is attached to an external drawing sheet to draw the drawing directly through the teaching aid body, so that the installation adaptability of different geometric teaching aids can be obviously improved, the assembly difficulty is reduced, the mechanical drawing teaching difficulty is effectively reduced, and the integral use requirement is met.
Description
Technical Field
The invention relates to the technical field of mechanical drawing teaching aids, in particular to a geometric teaching aid with a folding and accommodating function for mechanical drawing.
Background
The mechanical drawing is a subject which exactly represents the structural shape, the size, the working principle and the technical requirements of a machine by using a pattern, the pattern is composed of figures, symbols, characters, numbers and the like, the pattern is a technical file which expresses design intention, manufacturing requirements and communication experience, in order to facilitate students to understand the space correspondence and the mapping relation when the mechanical drawing is carried out during teaching, a geometric teaching aid is generally needed to be used for explaining teaching contents, and the purpose of assisting drawing is carried out through the teaching aid.
The Chinese patent literature publication numbers are: the patent of CN210895898U discloses a demonstration teaching aid for mechanical drawing teaching, which comprises a base, wherein a projection plate is fixedly connected to the left end of the top end face of the base, an object placing plate is arranged at the right end of the projection plate, the object placing plate is rotatably connected with the base and penetrates through the base, a friction block is fixedly connected to the bottom end face of the object placing plate, a first gear is fixedly connected to the bottom end face of the friction block, and a supporting plate is fixedly connected to the bottom end face of the first gear; this scheme is through the first gear that sets up, the layer board, first slider, a spring, fixed block and second gear, this kind of fixed connection who sets up the first gear of cooperation and layer board, the layer board is connected with the rotation of first slider, the fixed connection of first slider and fixed block, the fixed connection of fixed block and spring and the meshing of second gear and first gear are connected, realized according to the teaching needs, the projection angle that changes the projection object under the condition of the axle center position that does not change the projection object, nevertheless still have certain shortcoming when in-service use: 1. the method has the advantages that the cooperation of a geometric teaching aid is lacked, the requirement of space solid geometry teaching cannot be met, 2, drawing cannot be used, observation can be carried out only through projection and shadow positions, and the method is not intuitive; 3. the direction of regulation is single, and the projection object assembly is more complicated, and the ratio is extravagant teaching time when teaching.
Disclosure of Invention
The invention aims to solve the defects in the prior art, such as: 1. the method has the advantages that the cooperation of a geometric teaching aid is lacked, the requirement of space solid geometry teaching cannot be met, 2, drawing cannot be used, observation can be carried out only through projection and shadow positions, and the method is not intuitive; 3. the direction of regulation is single, and the projection object assembly is more complicated, and the dress ratio is extravagant teaching time when teaching, and the mechanical drawing that provides has the folding function of accomodating uses geometry teaching aid.
In order to achieve the purpose, the invention adopts the following technical scheme:
a geometry teaching aid with a folding and containing function for mechanical drawing comprises a base, wherein an adjusting mechanism is arranged at the top of the base, one side of the adjusting mechanism is movably connected with a teaching aid body, one side of the adjusting mechanism is connected with a projection mechanism in a sliding manner, two sides of the top of the base are fixedly connected with side plates, a plurality of cover plates are hinged to the top of the base, and the cover plates are attached to the side plates at two sides;
the adjusting mechanism comprises a first sliding block, a first sliding groove is formed in the top of the base, the first sliding block is connected in the first sliding groove in a sliding mode, a threaded cap is embedded on one side of the first sliding block, a first threaded column is connected in the threaded cap in an internal thread mode, a second rotating shaft is fixedly connected to the two ends of the first threaded column, a second bearing is sleeved on the outer side wall of the second rotating shaft, the second bearing is embedded on one side of the inner cavity of the first sliding groove, a first handle is fixedly connected to one end, located on the side, of the second rotating shaft, a fixed seat is fixedly connected to the top of the first sliding block, a second threaded column is fixedly connected to the top of the fixed seat, a threaded barrel is connected to the outer side wall of the second threaded column in a threaded mode, a fixed block is clamped on the outer side wall of the threaded barrel, a first sliding seat is fixedly connected to the top of the second threaded column, a sliding rail is connected in the first sliding seat, a wheel disc is fixedly connected to the outer side wall of the threaded cylinder, a second sliding groove is formed in one side of the fixing block, a second sliding block is connected in the second sliding groove in a sliding mode, and one side of the second sliding block is fixedly connected with one side of the teaching aid mechanism;
the teaching aid mechanism comprises a first rotating shaft, one end of the first rotating shaft is fixedly connected with one side of a second sliding block, two first bearings are sleeved on the outer side wall of the first rotating shaft, clamping seats are clamped on the outer side walls of the first bearings on two sides, a plurality of through grooves are formed in the outer wall of each clamping seat in a surrounding mode, placing grooves are formed in two sides of each through groove inner cavity, a first spring is fixedly connected to one side of each placing groove inner cavity, a lug is fixedly connected to the other end of the first spring, a teaching aid body is connected in each through groove in a sliding mode, clamping grooves are formed in two sides of each teaching aid body, the lug is clamped in each clamping groove, a limiting plate is fixedly connected to one side of each clamping seat through a connecting block, a fixing plate is fixedly connected to one side of each limiting plate, a first sliding sleeve is embedded in the top of the fixing plate, a first sliding rod is connected in the first sliding sleeve in a sliding mode, and a limiting magnetic ring is fixedly connected to the bottom of the first sliding rod, a third magnet is embedded in one end of the outer side wall of the first rotating shaft, the limiting magnetic ring is adsorbed with the third magnet, and a second handle is fixedly connected to the top end of the first sliding rod.
Furthermore, the two sides of the bottom of the slide rail are fixedly connected with positioning rods, and the positioning rods are clamped in positioning grooves formed in the corresponding positions of the tops of the side plates.
Further, fixed block one side articulates through the round pin axle has the stopper, stopper one side fixedly connected with extrusion pad, extrusion pad and second slider one side fixed connection.
Furthermore, the cross section shapes of the inner cavities of the second sliding block and the second sliding groove are both T-shaped.
Further, first pivot lateral wall inlays and is equipped with first magnet, teaching aid body bottom fixedly connected with second magnet, first magnet adsorbs with the second magnet mutually.
Furthermore, a second spring is sleeved on the outer side wall of the first sliding rod, and two ends of the second spring are fixedly connected with the second handle and the first sliding sleeve at corresponding positions respectively.
Further, projection mechanism includes second sliding seat and projecting apparatus body, second sliding seat sliding connection is outside the slide rail, connecting rod fixedly connected with connecting plate is passed through to second sliding seat bottom, connecting plate bottom fixedly connected with spacing hose, spacing hose bottom fixedly connected with projecting apparatus body.
Furthermore, one side of the inner cavity of the cover plate is provided with projection cloth, the other side of the inner cavity of the cover plate is provided with a hard plate, and the cover plates are hinged through hinges.
Further, the cross-sectional shapes of the first sliding block and the first sliding groove are both rectangular.
Further, the equal fixedly connected with supporting leg in base bottom four corners department.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, by arranging the teaching aid mechanism, the teaching aid body is clamped into the plurality of through grooves formed in one side of the clamping seat, the lug can move into the placing groove in a limiting mode to be clamped and limited, different geometric teaching aid bodies are clamped into the through grooves, the first sliding rod slides to pull the limiting magnetic ring to be separated from the third magnet, the clamping seat rotates to deflect to adjust different orientations of the geometric teaching aid bodies, the base and an external drawing sheet are laminated and can be used for drawing directly through the teaching aid bodies, the mounting adaptability of different geometric teaching aids can be obviously improved, the assembly difficulty is reduced, the mechanical drawing teaching difficulty is effectively reduced, and the integral use requirement is met.
(2) According to the invention, by arranging the adjusting mechanism, when the teaching aid body needs to be adjusted, the first threaded column rotates to drive the threaded cap in threaded connection to pull the first sliding block, the fixed seat, the second threaded column and the fixed block to move transversely, the fixed block moves transversely to pull the first rotating shaft, the clamping seat and the teaching aid body to move transversely, the threaded cylinder is driven to rotate in the third bearing by screwing the wheel disc, the threaded cylinder drives the fixed block to move upwards by rotating outside the second threaded column, so that the lifting position of the clamping seat can be adjusted, the clamping seat can rotate outside the threaded cylinder through the first rotating shaft and the fixed block to adjust the offset angle, and further the adaptive offset position can be adjusted, so that the mechanical drawing geometric teaching effect can be improved, the adjusting adaptive capacity is high, and the integral use requirement is met.
(3) According to the invention, by arranging the projector body, when projection teaching is required, the four cover plates on one side of the base are rotatably erected and attached to the tops of the side plates on the two sides around the hinge, and the position is adjusted by pulling the second sliding seat to slide outside the sliding rail, so that the projector body can be projected onto the projection cloth on one side of the rear cover plate to be displayed, a teaching worker can conveniently perform auxiliary teaching through projection teaching courseware, and the integral use requirement is met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1 according to the present invention;
FIG. 3 is an enlarged schematic view of portion B of FIG. 1 in accordance with the present invention;
FIG. 4 is an enlarged view of the structure of the portion C in FIG. 1;
FIG. 5 is a schematic perspective view of the card socket of the present invention;
FIG. 6 is a schematic perspective view of a fixing block according to the present invention;
FIG. 7 is a side view of the base of the present invention.
The list of components represented by the various reference numbers in the figures is as follows: 1. a base; 2. a teaching aid mechanism; 201. a first rotating shaft; 202. a clamping seat; 203. a first magnet; 204. a first bearing; 205. a teaching aid body; 206. a second magnet; 207. a card slot; 208. a bump; 209. a first spring; 210. a placement groove; 211. connecting blocks; 212. a limiting plate; 213. a third magnet; 214. a limiting magnetic ring; 215. a first slide bar; 216. a first sliding sleeve; 217. a second spring; 218. a through groove; 219. a fixing plate; 3. an adjustment mechanism; 301. a second bearing; 302. a second rotating shaft; 303. a first chute; 304. a first threaded post; 305. a threaded cap; 306. a first slider; 307. a fixed seat; 308. a second threaded post; 309. a threaded barrel; 310. a third bearing; 311. a fixed block; 312. a first sliding seat; 313. a slide rail; 314. positioning a rod; 315. positioning a groove; 316. a pin shaft; 317. a limiting block; 318. pressing the cushion; 319. a second slider; 320. a second chute; 4. a side plate; 5. a projection mechanism; 501. a second sliding seat; 502. a connecting plate; 503. a limiting hose; 504. a projector body; 6. a cover plate; 7. and (5) supporting legs.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-7, the geometry teaching aid with the folding and containing functions for mechanical drawing comprises a base 1, wherein an adjusting mechanism 3 is arranged at the top of the base 1, a teaching aid body 205 is movably connected to one side of the adjusting mechanism 3, a projection mechanism 5 is slidably connected to one side of the adjusting mechanism 3, side plates 4 are fixedly connected to two sides of the top of the base 1, a plurality of cover plates 6 are hinged to the top of the base 1, and the cover plates 6 are attached to the side plates 4 on two sides;
the teaching aid mechanism 2 comprises a first rotating shaft 201, one end of the first rotating shaft 201 is fixedly connected with one side of a second sliding block 319, two first bearings 204 are sleeved on the outer side wall of the first rotating shaft 201, clamping seats 202 are clamped on the outer side walls of the first bearings 204 on two sides, a plurality of through grooves 218 are formed in the outer wall of each clamping seat 202 in a surrounding mode, placing grooves 210 are formed in two sides of the inner cavity of each through groove 218, a first spring 209 is fixedly connected to one side of the inner cavity of each placing groove 210, a lug 208 is fixedly connected to the other end of each first spring 209, a teaching aid body 205 is slidably connected to each through groove 218, clamping grooves 207 are formed in two sides of each teaching aid body 205, the lug 208 is clamped in each clamping groove 207, a limiting plate 212 is fixedly connected to one side of each clamping seat 202 through a connecting block 211, a fixing plate 219 is fixedly connected to one side of each limiting plate 212, and a first sliding sleeve 216 is embedded in the top of each fixing plate 219, the first sliding sleeve 216 is connected with a first sliding rod 215 in a sliding manner, the bottom of the first sliding rod 215 is fixedly connected with a limiting magnetic ring 214, a third magnet 213 is embedded in one end of the outer side wall of the first rotating shaft 201, the limiting magnetic ring 214 and the third magnet 213 are adsorbed, and the top end of the first sliding rod 215 is fixedly connected with a second handle.
The adjusting mechanism 3 comprises a first sliding block 306, a first sliding groove 303 is formed in the top of the base 1, the first sliding block 306 is connected in the first sliding groove 303 in a sliding manner, a threaded cap 305 is embedded in one side of the first sliding block 306, a first threaded column 304 is connected in the threaded cap 305 in a threaded manner, two ends of the first threaded column 304 are fixedly connected with a second rotating shaft 302, a second bearing 301 is sleeved on the outer side wall of the second rotating shaft 302, the second bearing 301 is embedded in one side of an inner cavity of the first sliding groove 303, a first handle is fixedly connected to one end, located on the side, of the second rotating shaft 302, a fixed seat 307 is fixedly connected to the top of the first sliding block 306, a second threaded column 308 is fixedly connected to the top of the fixed seat 307, a threaded barrel 309 is connected to the outer side wall of the second threaded column 308 in a threaded barrel in a threaded manner, a fixed block 311 is clamped on the outer side wall of the threaded barrel 309, and a first sliding seat 312 is fixedly connected to the top end of the second threaded column 308, a sliding rail 313 is connected in the first sliding seat 312 in a sliding manner, a wheel disc is fixedly connected on the outer side wall of the threaded cylinder 309, a second sliding groove 320 is formed in one side of the fixed block 311, a second sliding block 319 is connected in the second sliding groove 320 in a sliding manner, and one side of the second sliding block 319 is fixedly connected with one side of the teaching aid mechanism 2;
the outer side wall of the first sliding rod 215 is sleeved with a second spring 217, and two ends of the second spring 217 are respectively and fixedly connected with the second handle and the first sliding sleeve 216 at corresponding positions.
The implementation mode is specifically as follows: when the teaching aid is required to be used for geometric drawing, the two side cover plates 6 are opened through hinges to leak out of the base 1 and the teaching aid mechanism 2 fixed inside, the teaching aid body 205 is clamped into a plurality of through grooves 218 formed in one side of the clamping seat 202, the teaching aid body 205 can be adsorbed and fixed with the first magnet 203 on the outer wall of the first rotating shaft 201 through the second magnet 206 at the bottom after entering the through grooves 218, the lug 208 and the first spring 209 can be extruded when the bottom of the teaching aid body 205 is moved into the through grooves 218, the lug 208 can be moved into the placing groove 210 in a limiting way, when the clamping groove 207 at the bottom of the teaching aid body 205 is in a corresponding position with the lug 208, the first spring 209 can drive the lug 208 to be clamped into the clamping groove 207 through the elasticity of the first spring 209, the teaching aid body 205 can be clamped and limited, different geometric teaching aid bodies 205 can be clamped through the through grooves 218, and the first sliding rod 215 is driven to slide in the first sliding sleeve 216 through pulling the second handle, the outer side wall of the first sliding rod 215 is sleeved with the second spring 217 to facilitate elastic force to improve the limiting stability of the first sliding rod 215, the adsorption effect of the limiting magnetic ring 214 is ensured, the rotation of the clamping seat 202 is avoided, the first sliding rod 215 slides to pull the limiting magnetic ring 214 to be separated from the third magnet 213, at the moment, the first handle and the fixing plate 219 can be pulled to rotate through the limiting plate 212 and the clamping seat 202, the clamping seat 202 rotates to rotate outside the first rotating shaft 201 through the first bearing 204, so that different geometric teaching aid bodies 205 can be adjusted through the rotational offset of the clamping seat 202, when only one teaching aid body 205 is clamped, drawing can be directly performed through the teaching aid body 205 by the base 1 and the external teaching aid drawing, the bottoms of the different geometric teaching aid bodies 205 are made into clamping grooves 207 assembled with the clamping seat 202, and the mounting adaptability to different geometric teaching aids can be obviously improved, effectively reduce the mechanical drawing teaching degree of difficulty, satisfy whole user demand.
The slide rail 313 bottom both sides all fixedly connected with locating lever 314, locating lever 314 joint is in the constant head tank 315 that the corresponding position in curb plate 4 top was seted up, the cross sectional shape of first slider 306 and first spout 303 is the rectangle, the equal fixedly connected with supporting leg 7 in base 1 bottom four corners department.
The implementation mode is specifically as follows: when the teaching aid body 205 needs to be adjusted, the first handle can be screwed to drive the second rotating shaft 302 to rotate in the second bearing 301, the second rotating shaft 302 rotates to drive the first threaded column 304 in threaded connection, the first threaded column 304 rotates to drive the threaded cap 305 in threaded connection to pull the first sliding block 306 to move in the first sliding groove 303, the first sliding block 306 moves to pull the fixed seat 307, the second threaded column 308 and the fixed block 311 to move transversely, the second threaded column 308 moves to pull the first sliding seat 312 to slide outside the sliding rail 313, the second threaded column 308 is prevented from shifting, the axial shifting angle of the first rotating shaft 201 can be adjusted by positioning the position of the second threaded column 308 conveniently, the sliding rail 313 can be separated from the positioning groove 315 through the bottom positioning rod 314, the cover plate 6 can be conveniently closed and stored, the occupied place safety is reduced, the fixed block 311 moves transversely to pull the transverse shifting positions of the first rotating shaft 201, the clamping seat 202 and the teaching aid body 205, and the wheel disc is screwed to drive the threaded barrel 309 to rotate in the third bearing 310, the first rotating shaft 201 is pulled to avoid deviation during rotation, the threaded barrel 309 upwards drives the fixing block 311 to move through rotating outside the second threaded column 308, so that the lifting position of the clamping seat 202 can be adjusted, the clamping seat 202 can rotate outside the threaded barrel 309 through the third bearing 310 through the first rotating shaft 201 and the fixing block 311, the first rotating shaft 201 can move in the second sliding groove 320 through the second sliding block 319 to be separated from the fixing block 311, the maintenance of the first rotating shaft 201 and the clamping seat 202 is convenient, after the second sliding block 319 slides into the second sliding groove 320, the limiting block 317 can extrude and limit the second sliding block 319 through the extrusion block, the second sliding block 319 is prevented from separating from the second sliding groove 320 due to vibration, the clamping limit separation of the clamping seat 202 is ensured, the deviation angle of the teaching aid body 205 is adjusted, and the adaptation deviation position can be adjusted, therefore, the mechanical drawing geometric teaching effect can be improved, the adjusting and adapting capacity is high, and the integral use requirement is met.
The implementation mode is specifically as follows: when needing to carry out projection teaching, rotate through one side hinge through pulling cover plate 6, four cover plates 6 of base 1 one side are rotated around the hinge and are set up the laminating at 4 tops of both sides curb plate, slide rail 313 is outer to be slided through pulling second sliding seat 501, second sliding seat 501 removes and drives connecting plate 502 and spacing hose 503 and projecting apparatus body 504 and remove the adjustment position, and spacing hose 503 is the plastic bellows, conveniently adjust projecting apparatus body 504 overall position, and cover plate 6 can shelter from outside light, improve the projection effect, after passing through the power cord power supply with projecting apparatus body 504, can show on the projection cloth of projecting apparatus body 504 projection to rear side cover plate 6 one side, make things convenient for the teaching personnel to carry out supplementary teaching through projection teaching courseware, satisfy the whole needs of using.
In the invention, when a user uses the device and needs to use a teaching aid to carry out geometric drawing, the two side cover plates 6 are opened through hinges to leak out of the base 1 and the teaching aid mechanism 2 fixed inside, the teaching aid body 205 is clamped into a plurality of through grooves 218 formed in one side of the clamping seat 202, the teaching aid body 205 can be adsorbed and fixed with the first magnet 203 on the outer wall of the first rotating shaft 201 through the second magnet 206 at the bottom after entering the through grooves 218, the lug 208 and the first spring 209 can be extruded when the bottom of the teaching aid body 205 is moved into the through grooves 218, the lug 208 can be limited and moved into the placing groove 210, when the clamping groove 207 at the bottom of the teaching aid body 205 and the lug 208 are in corresponding positions, the first spring 209 can drive the lug 208 to be clamped into the clamping groove 207 to limit the teaching aid body 205 by utilizing the self elasticity, and the teaching aid body 205 can be clamped into different geometric drawing through the plurality of through the through grooves 218, and drive first slide bar 215 and slide in first sliding sleeve 216 through pulling the second handle, first slide bar 215 slides and pulls spacing magnetic ring 214 and third magnet 213 separation, can pass through limiting plate 212 and joint chair 202 rotation through pulling first handle and fixed plate 219 this moment, joint chair 202 rotates and can rotate outside first pivot 201 through first bearing 204 to can use through the different geometry teaching aid bodies 205 of rotational offset adjustment of joint chair 202.
When the teaching aid body 205 needs to be adjusted, the first handle is screwed to drive the second rotating shaft 302 to rotate in the second bearing 301, the second rotating shaft 302 rotates to drive the first threaded column 304 connected with the threads to rotate, the first threaded column 304 rotates to drive the threaded cap 305 connected with the threads to pull the first sliding block 306 to move in the first sliding groove 303, the first sliding block 306 moves to pull the fixed seat 307, the second threaded column 308 and the fixed block 311 to move transversely, the fixed block 311 moves transversely to pull the first rotating shaft 201, the clamping seat 202 and the teaching aid body 205 to move transversely, the threaded cylinder 309 is driven to rotate in the third bearing 310 by screwing the wheel disc, the first rotating shaft 201 is pulled to avoid deviation during rotation, the threaded cylinder 309 rotates upwards to drive the fixed block 311 to move outside the second threaded column 308, so that the lifting position of the clamping seat 202 can be adjusted, and the clamping seat 202 can rotate outside the threaded cylinder 309 through the first rotating shaft 201 and the fixed block 311 through the third bearing 310, the offset angle of the teaching aid body 205 is adjusted.
When needing to carry out the projection teaching, rotate through one side hinge through pulling cover plate 6, the laminating is set up at 4 tops of both sides curb plate around the hinge rotation to four cover plates 6 of base 1 one side, slide outside slide rail 313 through pulling second sliding seat 501, second sliding seat 501 removes and drives connecting plate 502 and spacing hose 503 and projecting apparatus body 504 and remove the adjustment position, can show projecting apparatus body 504 projection to the projection cloth of rear side cover plate 6 one side.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The geometry teaching aid with the folding and containing functions for mechanical drawing comprises a base (1) and is characterized in that an adjusting mechanism (3) is arranged at the top of the base (1), a teaching aid body (205) is movably connected to one side of the adjusting mechanism (3), a projection mechanism (5) is slidably connected to one side of the adjusting mechanism (3), side plates (4) are fixedly connected to two sides of the top of the base (1), a plurality of cover plates (6) are hinged to the top of the base (1), and the cover plates (6) are attached to the side plates (4) on two sides;
the adjusting mechanism (3) comprises a first sliding block (306), a first sliding groove (303) is formed in the top of the base (1), the first sliding block (306) is connected in the first sliding groove (303) in a sliding mode, a threaded cap (305) is embedded on one side of the first sliding block (306), a first threaded column (304) is connected in a threaded mode in the threaded cap (305), a second rotating shaft (302) is fixedly connected to two ends of the first threaded column (304), a second bearing (301) is sleeved on the outer side wall of the second rotating shaft (302), the second bearing (301) is embedded on one side of an inner cavity of the first sliding groove (303), a first handle is fixedly connected to one end, located on the side, of the second rotating shaft (302), a fixing seat (307) is fixedly connected to the top of the first sliding block (306), a second threaded column (308) is fixedly connected to the top of the fixing seat (307), and a threaded barrel (309) is connected to the outer side wall of the second threaded column (308), the outer side wall of the threaded cylinder (309) is clamped with a fixed block (311), the top end of the second threaded column (308) is fixedly connected with a first sliding seat (312), a sliding rail (313) is connected in the first sliding seat (312) in a sliding manner, the outer side wall of the threaded cylinder (309) is fixedly connected with a wheel disc, a second sliding groove (320) is formed in one side of the fixed block (311), a second sliding block (319) is connected in the second sliding groove (320) in a sliding manner, and one side of the second sliding block (319) is fixedly connected with one side of a teaching aid mechanism (2);
the teaching aid mechanism (2) comprises a first rotating shaft (201), one end of the first rotating shaft (201) is fixedly connected with one side of a second sliding block (319), two first bearings (204) are sleeved on the outer side wall of the first rotating shaft (201), clamping seats (202) are clamped on the outer side walls of the first bearings (204) on two sides, a plurality of through grooves (218) are formed in the outer wall of each clamping seat (202) in a surrounding mode, standing grooves (210) are formed in two sides of the inner cavity of each through groove (218), a first spring (209) is fixedly connected to one side of the inner cavity of each standing groove (210), a lug (208) is fixedly connected to the other end of each first spring (209), a teaching aid body (205) is connected in each through groove (218) in a sliding mode, clamping grooves (207) are formed in two sides of the teaching aid body (205), the lug (208) is clamped in the clamping grooves (207), a limiting plate (212) is fixedly connected to one side of each clamping seat (202) through a connecting block (211), limiting plate (212) one side fixedly connected with fixed plate (219), fixed plate (219) top is inlayed and is equipped with first sliding sleeve (216), sliding connection has first slide bar (215) in first sliding sleeve (216), first slide bar (215) bottom fixedly connected with limit magnetic ring (214), third magnet (213) are inlayed to first pivot (201) lateral wall one end, limit magnetic ring (214) and third magnet (213) adsorb mutually, first slide bar (215) top fixedly connected with second handle.
2. The geometry teaching aid for mechanical drawing with folding function of accomodating of claim 1, characterized in that, slide rail (313) bottom both sides all fixedly connected with locating lever (314), locating lever (314) joint is in the constant head tank (315) that the corresponding position in curb plate (4) top was seted up.
3. The mechanical drawing geometry teaching aid with the folding function of accomodating of claim 1, characterized in that, fixed block (311) one side articulates through round pin axle (316) has stopper (317), stopper (317) one side fixedly connected with extrusion pad (318), extrusion pad (318) and second slider (319) one side fixed connection.
4. The geometry teaching aid for mechanical drawing with folding function of accomodating of claim 1 wherein, the cross sectional shape of second slider (319) and second spout (320) inner chamber is T shape.
5. The geometry teaching aid for mechanical drawing with function is accomodate in folding of claim 1, characterized in that, first magnet (203) is inlayed to first pivot (201) lateral wall, teaching aid body (205) bottom fixedly connected with second magnet (206), first magnet (203) and second magnet (206) adsorb mutually.
6. The geometry teaching aid for mechanical drawing with folding function of accomodating of claim 1, characterized in that, the cover of first slide bar (215) lateral wall is equipped with second spring (217), second spring (217) both ends respectively with second handle and first sliding sleeve (216) correspond the position fixed connection.
7. The geometry teaching aid for mechanical drawing with folding function of accomodating of claim 1, characterized in that, projection mechanism (5) includes second sliding seat (501) and projector body (504), second sliding seat (501) sliding connection is outside slide rail (313), second sliding seat (501) bottom is through connecting rod fixedly connected with connecting plate (502), connecting plate (502) bottom fixedly connected with spacing hose (503), spacing hose (503) bottom fixedly connected with projector body (504).
8. The folding mechanical drawing geometry teaching aid of accomodating function of claim 1, characterized in that, cover plate (6) inner chamber one side sets up to the projection cloth, and cover plate (6) opposite side is the hardboard, and passes through the hinge between the cover plate (6) and articulate.
9. The geometry teaching aid for mechanical drawing with folding function of accomodating of claim 1 wherein the first slider (306) and first spout (303) are both rectangular in cross-sectional shape.
10. The mechanical drawing geometry teaching aid with folding function of accomodating of claim 1, characterized in that, base (1) bottom four corners all fixedly connected with supporting leg (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011020078.1A CN112140775B (en) | 2020-09-25 | 2020-09-25 | Geometry teaching aid with folding function of accomodating for mechanical drawing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011020078.1A CN112140775B (en) | 2020-09-25 | 2020-09-25 | Geometry teaching aid with folding function of accomodating for mechanical drawing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112140775A CN112140775A (en) | 2020-12-29 |
| CN112140775B true CN112140775B (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011020078.1A Active CN112140775B (en) | 2020-09-25 | 2020-09-25 | Geometry teaching aid with folding function of accomodating for mechanical drawing |
Country Status (1)
| Country | Link |
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| CN (1) | CN112140775B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB602186A (en) * | 1941-05-06 | 1948-05-21 | Marcel Jay | Improvements in electric razors |
| JPH05236203A (en) * | 1992-02-19 | 1993-09-10 | Fuji Photo Film Co Ltd | Free stop mechanism and picture input device using the mechanism |
| CN110120162A (en) * | 2019-05-13 | 2019-08-13 | 黄山学院 | A kind of displaying teaching aid that Korean teaching uses |
| CN210759967U (en) * | 2019-09-12 | 2020-06-16 | 黄兴 | Mechanical design manufacturing and drawing tool for automatic drawing |
| CN210895898U (en) * | 2019-12-03 | 2020-06-30 | 王春青 | Demonstration teaching aid for mechanical drawing teaching |
| CN211010711U (en) * | 2019-12-19 | 2020-07-14 | 谭孟良 | Projecting apparatus support is used in teaching |
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2020
- 2020-09-25 CN CN202011020078.1A patent/CN112140775B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB602186A (en) * | 1941-05-06 | 1948-05-21 | Marcel Jay | Improvements in electric razors |
| JPH05236203A (en) * | 1992-02-19 | 1993-09-10 | Fuji Photo Film Co Ltd | Free stop mechanism and picture input device using the mechanism |
| CN110120162A (en) * | 2019-05-13 | 2019-08-13 | 黄山学院 | A kind of displaying teaching aid that Korean teaching uses |
| CN210759967U (en) * | 2019-09-12 | 2020-06-16 | 黄兴 | Mechanical design manufacturing and drawing tool for automatic drawing |
| CN210895898U (en) * | 2019-12-03 | 2020-06-30 | 王春青 | Demonstration teaching aid for mechanical drawing teaching |
| CN211010711U (en) * | 2019-12-19 | 2020-07-14 | 谭孟良 | Projecting apparatus support is used in teaching |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112140775A (en) | 2020-12-29 |
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