CN113763756B - Projection equipment for high school teaching and use method thereof - Google Patents
Projection equipment for high school teaching and use method thereof Download PDFInfo
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- CN113763756B CN113763756B CN202110929753.0A CN202110929753A CN113763756B CN 113763756 B CN113763756 B CN 113763756B CN 202110929753 A CN202110929753 A CN 202110929753A CN 113763756 B CN113763756 B CN 113763756B
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000004744 fabric Substances 0.000 claims description 33
- 238000009434 installation Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 7
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 7
- 241001330002 Bambuseae Species 0.000 claims description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 7
- 239000011425 bamboo Substances 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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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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- 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
- G03B21/56—Projection screens
- G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
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Abstract
The invention discloses projection equipment for high school teaching and a using method thereof, and relates to the technical field of teaching equipment. The projector comprises a base, wherein a projection assembly and a folding support are arranged on the base, the projection assembly comprises a projector, an electric telescopic rod a and a second rotating block, the projector is rotatably connected with a first rotating seat, a second mounting groove is formed in the lower surface of the projector, a laser lamp is mounted at the other end of the projector, the bottom end of the electric telescopic rod a is positioned in the first mounting groove, the electric telescopic rod a is rotatably connected with a second mounting plate through a rotating shaft, a spring is sleeved at the output end of the electric telescopic rod a, a second mounting cylinder is fixed on one side of the second rotating block, the output end of the electric telescopic rod a is positioned in the second mounting cylinder, the electric telescopic rod a and the second mounting plate are in sliding fit, the second rotating block is positioned in the first mounting groove, and the second rotating block is rotatably connected with the second mounting plate through the rotating shaft. According to the invention, through the design of the base, the projection assembly and the folding bracket, the adjusting time used before the device is used can be reduced.
Description
Technical Field
The invention belongs to the technical field of teaching equipment, and particularly relates to projection equipment for high school teaching and a using method thereof.
Background
The projector is widely applied to families, offices, schools and entertainment places at present, and according to different working modes, different types such as CRT, LCD and DLP are provided, at present, a mode of assisting classroom teaching by using multimedia technology is increasingly adopted by most schools, the interestingness in the teaching process is improved, and the interest of students in learning are stimulated, so that the efficiency of the students in professional learning is improved, the projector for teaching is generally divided into a fixed type projector and a movable type, the fixed type is fixed on a ceiling and cannot be transferred, the fixed type projector cannot be fully utilized, and when the projector is used, the latter is generally manually adjusted to ensure that the projection can be positioned in the best classroom, but the time is wasted, and the time is wasted.
Disclosure of Invention
The invention aims to provide projection equipment for high school teaching and a using method thereof, and solves the problem that the existing projection equipment is complex to adjust when in use through the design of a base, a projection assembly and a folding bracket.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to projection equipment for high school teaching, which comprises a base, wherein a projection assembly and a folding bracket are arranged on the base;
the base comprises a first mounting plate and a second mounting plate, wherein one end of the first mounting plate is provided with a multi-stage electric telescopic rod, two connecting rods are symmetrically fixed at the end, the output end of the multi-stage electric telescopic rod and the other end of the connecting rod are fixed with the second mounting plate, the upper surface of the first mounting plate is provided with a control panel, one side of the first mounting plate is provided with a plug, the upper surface of the second mounting plate is symmetrically fixed with two first rotating seats, and the upper surface of the second mounting plate is provided with a first mounting groove;
the projection assembly comprises a projector, an electric telescopic rod a and a second rotating block, wherein a first rotating block is fixed at a position, corresponding to a first rotating seat, of one end of the projector, the first rotating block is rotatably connected with the first rotating seat through a rotating shaft, a second mounting groove is formed in the lower surface of the projector, a laser lamp is mounted at the other end of the projector, the bottom end of the electric telescopic rod a is located in the first mounting groove, the electric telescopic rod a is rotatably connected with a second mounting plate through the rotating shaft, a spring is sleeved at the output end of the electric telescopic rod a, a second mounting barrel is fixed on one side of the second rotating block, the output end of the electric telescopic rod a is located in the second mounting barrel and is in sliding fit with the second mounting barrel, the two ends of the spring are respectively fixed with the electric telescopic rod a and the second mounting barrel, the second rotating block is located in the first mounting groove, and the second rotating block is rotatably connected with the second mounting plate through the rotating shaft;
folding support includes support column and two spinal branch poles, the support column is fixed at first mounting panel upper surface, support column all sides symmetry is fixed with two second roating seats, it is connected with electric telescopic handle b to rotate through the pivot on the second roating seat, the support column top end is fixed with square piece and square piece one relative flank all is fixed with the third roating seat, it is connected with electric telescopic handle c to rotate through the pivot on the third roating seat, electric telescopic handle c all sides are fixed with fourth roating seat and electric telescopic handle b output and homonymy fourth roating seat and rotate through the pivot to be connected, electric telescopic handle c output week side is fixed with first gear and electric telescopic handle c output and is fixed with the circular block, two branch runs through two circular blocks and branch respectively and rotates with the circular block to be connected, branch week side is fixed with second gear and first gear engagement, the branch other end is fixed with the third installation section of thick bamboo and installs first motor in the third installation section of thick bamboo, the third installation bobbin end is equipped with the closing cap, the first motor output runs through third installation section of thick bamboo and is fixed with the round bar, be equipped with projection cloth, be equipped with projection installation wire and projection installation sensor on the projection end and the photoinduction the electric telescopic handle.
Preferably, a plurality of supporting arms are fixed to the peripheral side faces of the first mounting plate and the second mounting plate, and universal wheels are fixed to the other ends of the supporting arms and mounted in a first mounting cylinder and a first mounting cylinder.
Preferably, reinforcing ribs are arranged on two sides of the supporting arm, and a plurality of first material stealing grooves are formed in the side face of the supporting arm.
Preferably, first mounting panel upper surface is equipped with first receipts line subassembly, first receipts line subassembly includes the second motor, the second motor is installed on first mounting panel and second motor output is fixed with first take-up reel, first take-up reel internal fixation has first baffle, first draw-in groove has been seted up on first baffle surface, the wire block is in first draw-in groove.
Preferably, first mounting panel one side is fixed with L shape pole and plug and is located the homonymy, L shape pole week side is fixed with a plurality of first bosses, it receives the line subassembly to be equipped with the second on the L shape pole, the second receives the line subassembly and includes the second take-up reel, the second take-up reel cover is established on L shape pole, the symmetry is fixed with two second baffles in the second take-up reel, a plurality of second draw-in grooves have been seted up to second baffle one side, L shape pole is accomodate in the second take-up reel.
Preferably, the junction of support column and first mounting panel is fixed with a plurality of second bosses, square piece upper surface has been seted up the second and has been stolen the silo and the silo runs through the support column is stolen to the second.
Preferably, two first limiting blocks are fixed on the circumferential side surface of the supporting rod, and the two first limiting blocks are respectively positioned on two sides of the circular block.
Preferably, a third mounting groove is formed in the circumferential side face of the round rod, one end of the projection cloth is fixed in the third mounting groove through a screw, and two second limiting blocks are fixed to the circumferential side face of the round rod and located on two sides of the projection cloth respectively.
Preferably, a method for using a projection device for teaching in high school includes the following steps:
SS001, stretching a base, dragging the device to a specified position and connecting a power supply, starting a multi-stage electric telescopic rod through a control panel to enable a second mounting plate to be far away from one side of a first mounting plate, enabling a universal wheel at the bottom end of the second mounting plate to slide along the ground in the process, assisting the second mounting plate to be far away from the first mounting plate, starting a second motor in the process, releasing a lead contained in a first take-up reel, and avoiding damage to the lead;
SS002, stretching the projection cloth, starting the electric telescopic rods b and the first motor, enabling the electric telescopic rods b to jack the electric telescopic rods c upwards from two sides, enabling the electric telescopic rods c to be parallel to the ground, enabling the first gear to be meshed with the corresponding second gear in the process, enabling the round rod to be perpendicular to the ground, meanwhile, driving the round rod to rotate by the first motor, enabling the projection cloth wound on the round rod to be stretched, and enabling the electric telescopic rods c to be matched with the first motor to adjust the length of the projection cloth;
SS003, angle modulation start electric telescopic handle a for the projecting apparatus uses first roating seat to rotate for supporting, adjusts the position of shadow on the projection cloth, starts the laser lamp simultaneously, and when the light-struck that the laser lamp sent was on light-sensitive sensor, stopped electric telescopic handle a, this moment, the best position of shadow ability projection on the projection cloth.
The invention has the following beneficial effects:
1. according to the invention, through the design of the base, the projection component and the folding bracket, on one hand, the device is convenient to fold, the occupied volume can be reduced, and the device is convenient to transfer, on the other hand, the projection component and the folding bracket are fixed on the base, so that the projection component and the folding bracket can be always kept parallel, the electric telescopic rod a is started, the projector is supported by the first rotating seat to rotate, the position of the light shadow on the projection cloth is adjusted, meanwhile, the laser lamp is started, when the light emitted by the laser lamp irradiates on the light-sensitive sensor, the electric telescopic rod a is stopped, at the moment, the light shadow can be projected on the optimal position on the projection cloth, and the adjusting time used before the device is used can be reduced.
2. According to the invention, through the design of the folding support, the electric telescopic rods b and the first motor are started, the two electric telescopic rods b can jack up the two electric telescopic rods c from two sides, so that the two electric telescopic rods c are parallel to the ground, the first gear is meshed with the corresponding second gear in the process, so that the round rod is vertical to the ground, meanwhile, the first motor can drive the round rod to rotate, so that the projection cloth wound on the round rod can be unfolded, and in addition, the electric telescopic rods c are started to be matched with the first motor, so that the length of the projection cloth can be adjusted.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
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 structural diagram of a projection apparatus for high school teaching;
FIG. 2 is a schematic structural diagram of a base;
FIG. 3 is a schematic view of the structure of the first mounting plate;
FIG. 4 is a schematic structural view of a second mounting plate;
FIG. 5 is a schematic view of a projection module;
FIG. 6 is a schematic structural view of an electric telescopic rod a;
FIG. 7 is a schematic view of a folding stand;
FIG. 8 is a schematic structural view of the strut, the third mounting cylinder, the first motor and the round bar when they are connected;
FIG. 9 is a schematic view of a projection cloth;
fig. 10 is a schematic structural view of the first wire takeup assembly;
fig. 11 is a structural schematic view of the second wire takeup assembly.
In the drawings, the reference numbers indicate the following list of parts:
1. a base; 101. a first mounting plate; 102. a second mounting plate; 103. a multi-stage electric telescopic rod; 104. a connecting rod; 105. a support arm; 106. a first mounting cylinder; 107. reinforcing ribs; 108. a first material stealing groove; 109. a universal wheel; 110. a control panel; 111. a plug; 112. an L-shaped rod; 113. a first reinforcing block; 114. a first rotating base; 115. a first mounting groove; 2. a projection assembly; 201. a projector; 202. an electric telescopic rod a; 203. a first rotating block; 204. a second mounting groove; 205. a laser light; 206. a spring; 207. a second mounting cylinder; 208. a second rotating block; 3. folding the bracket; 301. a support pillar; 302. a second rotary base; 303. an electric telescopic rod b; 304. a second reinforcing block; 305. a square block; 306. a second material stealing groove; 307. a third rotary base; 308. an electric telescopic rod c; 309. a fourth rotating base; 310. a first gear; 311. a circular block; 312. a strut; 313. a first stopper; 314. a second gear; 315. a third mounting cylinder; 316. a first motor; 317. sealing the cover; 318. a round bar; 319. a third mounting groove; 320. a second limiting block; 4. a projection cloth; 401. mounting blocks; 402. a light-sensitive sensor; 403. a wire; 5. a first wire take-up assembly; 501. a second motor; 502. a first take-up reel; 503. a first separator; 504. a first card slot; 6. a second wire take-up assembly; 601. a second take-up reel; 602. a second separator; 603. and a second card slot.
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.
Referring to fig. 1-11, the present invention is a projection device for high school teaching, which includes a base 1, a projection assembly 2 and a folding bracket 3 are disposed on the base 1;
the base 1 comprises a first mounting plate 101 and a second mounting plate 102, wherein one end of the first mounting plate 101 is provided with a multi-stage electric telescopic rod 103, the two ends of the multi-stage electric telescopic rod 103 are symmetrically fixed with two connecting rods 104, the output end of the multi-stage electric telescopic rod 103 and the other end of the connecting rod 104 are fixed with the second mounting plate 102, the upper surface of the first mounting plate 101 is provided with a control panel 110, one side of the first mounting plate 101 is provided with a plug 111, the upper surface of the second mounting plate 102 is symmetrically fixed with two first rotating seats 114, and the upper surface of the second mounting plate 102 is provided with a first mounting groove 115;
the projection component 2 comprises a projector 201, an electric telescopic rod a202 and a second rotating block 208, a first rotating block 203 is fixed at a position, corresponding to the first rotating seat 114, of one end of the projector 201, the first rotating block 203 is rotatably connected with the first rotating seat 114 through a rotating shaft, a second mounting groove 204 is formed in the lower surface of the projector 201, a laser lamp 205 is mounted at the other end of the projector 201, the bottom end of the electric telescopic rod a202 is located in the first mounting groove 115, the electric telescopic rod a202 is rotatably connected with the second mounting plate 102 through the rotating shaft, a spring 206 is sleeved at the output end of the electric telescopic rod a202, a second mounting cylinder 207 is fixed on one side of the second rotating block 208, the output end of the electric telescopic rod a202 is located in the second mounting cylinder 207 and is in sliding fit with the two, two ends of the spring 206 are respectively fixed with the electric telescopic rod a202 and the second mounting cylinder 207, the second rotating block 208 is located in the first mounting groove 115, and the second rotating block 208 is rotatably connected with the second mounting plate 102 through the rotating shaft;
the folding bracket 3 comprises a support column 301 and two support rods 312, the support column 301 is fixed on the upper surface of a first mounting plate 101, two second rotary seats 302 are symmetrically fixed on the peripheral surface of the support column 301, an electric telescopic rod b303 is rotatably connected on the second rotary seats 302 through a rotating shaft, a plurality of second reinforcing blocks 304 are fixed at the joint of the support column 301 and the first mounting plate 101 so as to enhance the connecting strength of the support column 301 and the first mounting plate 101, a second material stealing groove 306 is formed on the upper surface of a square block 305, the second material stealing groove 306 penetrates through the support column 301 so as to reduce the weight of the support column 301 and the square block 305, the square block 305 is fixed at the top end of the support column 301, third rotary seats 307 are fixed on the opposite side surfaces of the square block 305, an electric telescopic rod c308 is rotatably connected on the third rotary seats 307 through a rotating shaft, a fourth rotary seat 309 is fixed on the peripheral side surfaces of the electric telescopic rod c308, and the output end of the electric telescopic rod b303 is rotatably connected with the fourth rotary seats 309 on the same side through a rotating shaft, a first gear 310 is fixed on the peripheral side surface of the output end of the electric telescopic rod c308, a round block 311 is fixed on the output end of the electric telescopic rod c308, two rods 312 respectively penetrate through the two round blocks 311, a supporting rod 312 is rotatably connected with the round block 311, two first limit blocks 313 are fixed on the peripheral side surface of the supporting rod 312, the two first limit blocks 313 are respectively positioned on the two sides of the round block 311 and can play a limiting role, a second gear 314 is fixed on the peripheral side surface of the supporting rod 312, the second gear 314 is meshed with the first gear 310, a third installation cylinder 315 is fixed at the other end of the supporting rod 312, a first motor 316 is installed in the third installation cylinder 315, a sealing cover 317 is arranged at the bottom end of the third installation cylinder 315, an output end of the first motor 316 penetrates through the third installation cylinder 315 and is fixed with a round rod 318, a projection cloth 4 is arranged between the two round rods 318, an installation block 401 is fixed at the bottom end of the projection cloth 4, and a light-induced sensor 402 is arranged on the installation block 401, the light-sensitive sensor 402 is connected with the electric telescopic rod a202 through a lead 403.
Wherein as shown in fig. 2 and 3, the side all is fixed with a plurality of support arms 105 in first mounting panel 101 and the second mounting panel 102, and support arm 105 other end is fixed with first installation section of thick bamboo 106 and installs universal wheel 109 in the first installation section of thick bamboo 106 for this device is convenient for remove, and support arm 105 both sides all are equipped with strengthening rib 107, are convenient for strengthen the structural strength of support arm 105, and a plurality of first material stealing grooves 108 have been seted up to support arm 105 side, can reduce support arm 105's weight, have saved materials.
As shown in fig. 1, 9 and 10, a first wire take-up assembly 5 is arranged on the upper surface of the first mounting plate 101, the first wire take-up assembly 5 includes a second motor 501, the second motor 501 is mounted on the first mounting plate 101, a first wire take-up reel 502 is fixed at the output end of the second motor 501, a first partition 503 is fixed in the first wire take-up reel 502, a first clamping groove 504 is formed in the surface of the first partition 503, and the wires 403 are clamped in the first clamping groove 504, so that the wires 403 can be conveniently stored, and the wires 403 are prevented from being damaged or scattered.
As shown in fig. 3 and 11, an L-shaped rod 112 is fixed on one side of the first mounting plate 101, the L-shaped rod 112 and the plug 111 are located on the same side, a plurality of first reinforcing blocks 113 are fixed on the peripheral side of the L-shaped rod 112, a second take-up assembly 6 is arranged on the L-shaped rod 112, the second take-up assembly 6 includes a second take-up reel 601, the second take-up reel 601 is sleeved on the L-shaped rod 112, two second partition plates 602 are symmetrically fixed in the second take-up reel 601, a plurality of second clamping grooves 603 are formed in one side of each second partition plate 602, and the L-shaped rod 112 is accommodated in the second take-up reel 601, so that the plug 111 can be accommodated conveniently.
Wherein as shown in fig. 1, 7, 8 and 9, a third mounting groove 319 is provided on the circumferential side of the round bar 318, one end of the projection cloth 4 is fixed in the third mounting groove 319 by a screw, two second limiting blocks 320 are fixed on the circumferential side of the round bar 318, and the two second limiting blocks 320 are respectively located on two sides of the projection cloth 4, so as to facilitate the mounting and dismounting of the projection cloth 4.
A use method of projection equipment for high school teaching comprises the following steps:
SS001, extending the base 1, firstly dragging the device to a specified position and switching on a power supply, then starting the multistage electric telescopic rod 103 through the control panel 110, so that the second mounting plate 102 is far away from one side of the first mounting plate 101, the universal wheel 109 at the bottom end of the second mounting plate 102 slides along the ground in the process, the second mounting plate 102 is assisted to be far away from the first mounting plate 101, meanwhile, the second motor 501 needs to be started in the process, a lead 403 contained in the first take-up reel 502 is released, and the lead 403 is prevented from being damaged;
SS002, opening the projection cloth 4, starting the electric telescopic rods b303 and the first motor 316, enabling the electric telescopic rods b303 to jack up the electric telescopic rods c308 from two sides, enabling the electric telescopic rods c308 to be parallel to the ground, and enabling the first gear 310 to be meshed with the corresponding second gear 314 in the process, so that the round rod 318 is perpendicular to the ground, meanwhile, the first motor 316 drives the round rod 318 to rotate, so that the projection cloth 4 wound on the round rod 318 can be opened, and in addition, the electric telescopic rods c308 are started to be matched with the first motor 316, so that the length of the projection cloth 4 can be adjusted;
SS003, angle modulation start electric telescopic handle a202 for the position of shadow on projection cloth 4 is adjusted for the support rotation of projecting apparatus 201 with first roating seat 114, starts laser lamp 205 simultaneously, and when the light that laser lamp 205 sent shines on photoinduction sensor 402, stops electric telescopic handle a202, and at this moment, the best position of shadow ability projection on projection cloth 4.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
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 (9)
1. The utility model provides a projection equipment is used in high school's teaching, includes base (1), its characterized in that: the base (1) is provided with a projection component (2) and a folding bracket (3);
the base (1) comprises a first mounting plate (101) and a second mounting plate (102), wherein one end of the first mounting plate (101) is provided with a multi-stage electric telescopic rod (103), two connecting rods (104) are symmetrically fixed on the end, the output end of the multi-stage electric telescopic rod (103) and the other end of the connecting rod (104) are both fixed with the second mounting plate (102), the upper surface of the first mounting plate (101) is provided with a control panel (110), one side of the first mounting plate (101) is provided with a plug (111), the upper surface of the second mounting plate (102) is symmetrically fixed with two first rotating seats (114), and the upper surface of the second mounting plate (102) is provided with a first mounting groove (115);
the projection assembly (2) comprises a projector (201), an electric telescopic rod a (202) and a second rotating block (208), wherein a first rotating block (203) is fixed at a position, corresponding to a first rotating seat (114), of one end of the projector (201), the first rotating block (203) is rotatably connected with the first rotating seat (114) through a rotating shaft, a second mounting groove (204) is formed in the lower surface of the projector (201), a laser lamp (205) is mounted at the other end of the projector (201), the bottom end of the electric telescopic rod a (202) is located in the first mounting groove (115), the electric telescopic rod a (202) is rotatably connected with a second mounting plate (102) through a rotating shaft, a spring (206) is sleeved at the output end of the electric telescopic rod a (202), a second mounting tube (207) is fixed on one side of the second rotating block (208), the output end of the electric telescopic rod a (202) is located in the second mounting tube (207) and is in sliding fit with the second mounting tube (102), two ends of the spring (206) are respectively fixed with the electric telescopic rod a (202) and the second mounting tube (207), the second rotating block (208) is located in the second mounting groove (208) and is rotatably connected with the second mounting plate (102) through the rotating shaft;
the folding support (3) includes support column (301) and two branch pole (312), support column (301) are fixed at first mounting panel (101) upper surface, support column (301) all side symmetry is fixed with two second roating seat (302), be connected with electric telescopic handle b (303) through the pivot rotation on second roating seat (302), support column (301) top is fixed with square piece (305) and square piece (305) a relative flank all is fixed with third roating seat (307), be connected through the pivot rotation on third roating seat (307), electric telescopic handle c (308) all side is fixed with fourth roating seat (309) and electric telescopic handle b (303) output and homonymy fourth roating seat (309) rotate through the pivot and be connected, electric telescopic handle c (308) output side is fixed with first gear (310) and electric telescopic handle c (308) output end and is fixed with circular block (311), two branch pole (312) run through respectively and two branch piece (312) and rotate branch pole (312) side and install first gear (310) and second branch pole (312) other end and second branch (310) and second branch (312) fixed wheel (310) and second branch (310) other end mesh (310) and second branch (312) and mounting wheel (310), the utility model discloses a portable electric power tool, including third installation section of thick bamboo (315), first motor (316) output runs through third installation section of thick bamboo (315) and is fixed with round bar (318), two be equipped with projection cloth (4) between round bar (318), projection cloth (4) bottom mounting has installation piece (401) and is equipped with photoinduction sensor (402) on installation piece (401), photoinduction sensor (402) are connected with electric telescopic handle a (202) through wire (403).
2. The projection device for high school teaching according to claim 1, wherein a plurality of supporting arms (105) are fixed on the peripheral side of the first mounting plate (101) and the second mounting plate (102), a first mounting cylinder (106) is fixed at the other end of each supporting arm (105), and a universal wheel (109) is mounted in the first mounting cylinder (106).
3. The projection device for teaching in senior high school according to claim 2, wherein reinforcing ribs (107) are arranged on both sides of the supporting arm (105), and a plurality of first material stealing grooves (108) are formed in the side surface of the supporting arm (105).
4. The projection device for high school teaching according to claim 1, wherein a first wire take-up assembly (5) is disposed on an upper surface of the first mounting plate (101), the first wire take-up assembly (5) includes a second motor (501), the second motor (501) is mounted on the first mounting plate (101), a first wire take-up reel (502) is fixed to an output end of the second motor (501), a first partition plate (503) is fixed in the first wire take-up reel (502), a first clamping groove (504) is formed in a surface of the first partition plate (503), and the wire (403) is clamped in the first clamping groove (504).
5. The projection device for teaching in senior high school according to claim 1, wherein an L-shaped rod (112) is fixed to one side of the first mounting plate (101), the L-shaped rod (112) and the plug (111) are located on the same side, a plurality of first reinforcing blocks (113) are fixed to the side faces of the L-shaped rod (112), a second take-up assembly (6) is arranged on the L-shaped rod (112), the second take-up assembly (6) comprises a second take-up reel (601), the L-shaped rod (112) is sleeved with the second take-up reel (601), two second partition plates (602) are symmetrically fixed to the second take-up reel (601), a plurality of second clamping grooves (603) are formed in one side of each second partition plate (602), and the L-shaped rod (112) is accommodated in the second take-up reel (601).
6. The high school teaching projection equipment according to claim 1, wherein a plurality of second reinforcing blocks (304) are fixed at the joints of the supporting columns (301) and the first mounting plate (101), a second material stealing groove (306) is formed in the upper surface of the square block (305), and the second material stealing groove (306) penetrates through the supporting columns (301).
7. The projection device for teaching in senior high school according to claim 1, wherein two first stoppers (313) are fixed to the peripheral side of the supporting rod (312) and the two first stoppers (313) are respectively located on two sides of the circular block (311).
8. The projection device for high school teaching as claimed in claim 1, wherein a third mounting groove (319) is formed in the circumferential side of the round bar (318), one end of the projection cloth (4) is fixed in the third mounting groove (319) by a screw, two second limiting blocks (320) are fixed to the circumferential side of the round bar (318), and the two second limiting blocks (320) are located on two sides of the projection cloth (4) respectively.
9. Use of a projection device for teaching in high school according to any of claims 1-8, characterized in that it comprises the following steps:
SS001, stretching the base (1), firstly dragging the device to a specified position and connecting a power supply, then starting the multi-stage electric telescopic rod (103) through the control panel (110), so that the second mounting plate (102) is far away from one side of the first mounting plate (101), the universal wheel (109) at the bottom end of the second mounting plate (102) slides along the ground in the process, the second mounting plate (102) is assisted to be far away from the first mounting plate (101), meanwhile, the second motor (501) needs to be started in the process, a lead (403) contained in the first take-up reel (502) is released, and the lead (403) is prevented from being damaged;
SS002, open projection cloth (4), start electric telescopic handle b (303) and first motor (316), two electric telescopic handle b (303) can be followed both sides and two electric telescopic handle c (308) are jack-up upwards, make two electric telescopic handle c (308) keep parallel with ground, in-process first gear (310) and corresponding second gear (314) mesh, make round bar (318) keep perpendicular with ground, simultaneously, first motor (316) will drive round bar (318) and rotate, make projection cloth (4) of winding on round bar (318) to open, in addition, start electric telescopic handle c (308) and cooperate first motor (316), can adjust the length of projection cloth (4);
SS003 and angle adjustment, the electric telescopic rod a (202) is started, so that the projector (201) rotates by taking the first rotating seat (114) as a support, the position of the light shadow on the projection cloth (4) is adjusted, the laser lamp (205) is started at the same time, when the light emitted by the laser lamp (205) irradiates on the light sensing sensor (402), the electric telescopic rod a (202) is stopped, and at the moment, the light shadow can be projected on the optimal position on the projection cloth (4).
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| CN202110929753.0A CN113763756B (en) | 2021-08-13 | 2021-08-13 | Projection equipment for high school teaching and use method thereof |
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| CN202110929753.0A CN113763756B (en) | 2021-08-13 | 2021-08-13 | Projection equipment for high school teaching and use method thereof |
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| CN113763756B true CN113763756B (en) | 2023-01-03 |
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Effective date of registration: 20231129 Address after: 518000, No. 203, Longfu Industrial Zone, Huarong Road, Tongsheng Community, Dalang Street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Xinaida Technology Co.,Ltd. Address before: 214500 Room 302, unit 2, building 21, Nanhuan Huayuan West District, Jingjiang City, Taizhou City, Jiangsu Province Patentee before: Zhang Yanzhe |