CN111402687B - A multi-functional teaching aid for high school physics teaching demonstration - Google Patents
A multi-functional teaching aid for high school physics teaching demonstration Download PDFInfo
- Publication number
- CN111402687B CN111402687B CN202010222048.2A CN202010222048A CN111402687B CN 111402687 B CN111402687 B CN 111402687B CN 202010222048 A CN202010222048 A CN 202010222048A CN 111402687 B CN111402687 B CN 111402687B
- Authority
- CN
- China
- Prior art keywords
- plate
- ball
- water tank
- rotating shaft
- support plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/10—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of solid bodies
-
- 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
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/12—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of liquids or gases
Landscapes
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Algebra (AREA)
- Pure & Applied Mathematics (AREA)
- Educational Administration (AREA)
- Computational Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Toys (AREA)
Abstract
The invention relates to the technical field of high school physics teaching equipment, in particular to a multifunctional teaching aid for demonstrating high school physics teaching; the pull rope is pulled by the turntable assembly to enable the push block to move rightwards and compress the first spring, then the pull rope is automatically loosened, the push block is deformed by the first spring to recover to enter the opening from the right side and push the small ball to move leftwards, and the small ball horizontally makes a horizontal projectile motion demonstration from the left end of the second support plate; the small balls which move in a horizontal projectile manner fall into the ball receiving basket from the right end under the guidance of the ball guide slide way, and buoyancy force demonstration is carried out by reacting buoyancy force change through water displacement change; the left water receiving cup receives water of the first water tank; the pumping and draining assembly finishes the work of draining the water in the second water tank from the second pipe, and the water receiving cup on the right side receives the water in the second water tank for demonstrating the lever principle.
Description
Technical Field
The invention relates to the technical field of high school physics teaching equipment, in particular to a multifunctional teaching aid for demonstrating high school physics teaching.
Background
Physics is a natural science that focuses on studying substances, energy, space, time, and in particular their respective properties and interrelationships with each other. Physics is knowledge about the laws of nature; more broadly, physics explores analyzing the phenomena occurring in nature to understand their rules.
Physics is the subject of studying the most general laws of motion and basic structures of substances. As the leading subject of natural science, physical studies are as large as the universe and as small as the most basic motion forms and laws of all substances such as basic particles, and therefore, the method becomes the research foundation of other natural science subjects. The theoretical structure of the system fully uses mathematics as the working language of the system, and experiments are used as the only standard for checking the theoretical correctness, which is the most precise natural science subject at present.
Physics is a regular summary of people's knowledge of the transformation of substances in inanimate nature. There are two types of movement and transformation. Firstly, people in early period can use the extension of sense organ vision, and secondly, modern people can use the invention to create scientific instruments for observing and measuring, and the results obtained by experiments are based on the establishment of indirectly knowing the internal composition of the substance. The physics is different from the research point of view and can be divided into a micro part and a macro part, wherein the macro part directly considers the whole effect without analyzing the single action effect in the particle group and appears at the earliest stage, and the micro physics is gradually improved along with the development theory of science and technology.
High school physics is one of the bases of high school science and is the subject of studying the most general laws of motion and basic structure of matter. For teaching of high school physics, many different types of motion, stress and other contents are involved, teachers speak orally, students cannot understand easily, and therefore a demonstration device is needed to help teaching.
The knowledge points needing demonstration at higher frequency in the physical teaching are flat projectile motion, buoyancy principle, lever principle and the like. The object is thrown horizontally at a certain initial velocity, and if the object is subjected to the action of gravity only, such a movement is called a flat throwing movement. The horizontal projectile motion can be regarded as the combined motion of uniform linear motion in the horizontal direction and free falling motion in the vertical direction. Buoyancy refers to the force of an object immersed in a liquid (or gas) being lifted by the liquid (or gas). A hard rod that can rotate around a fixed point under the action of force is called a lever. The lever may be a hard rod of any shape.
The knowledge points are independent of each other, and students can only understand the knowledge points singly. The corresponding existing physical demonstration device has the advantages of simple structure, single function, complex operation and few related knowledge points, can not help to blend scattered knowledge points which can be learned through, and needs to be improved.
Disclosure of Invention
Technical problem to be solved
The invention aims to overcome the defects in the prior art and provide a multifunctional teaching aid for high school physics teaching demonstration.
(II) technical scheme
A multifunctional teaching aid for high school physics teaching demonstration comprises a frame, a ball pushing assembly, a flat throwing assembly, a buoyancy assembly and a lever assembly;
the frame comprises a bottom plate, a left side plate, a right side plate and a top plate, wherein the left side plate and the right side plate are respectively and fixedly connected to the left end and the right end of the bottom plate, and the top ends of the left side plate and the right side plate are connected through the top plate;
the ball pushing assembly comprises a ball barrel, a second support plate and a push block; the second support plate is arranged below the top plate, and the right end of the second support plate is fixedly connected with the top plate through the third support plate; the ball barrel is arranged on the second support plate, and the top end of the ball barrel is provided with a ball adding port; a cavity for accommodating a single small ball is arranged at the bottom end of the ball barrel, a movable door is arranged on the left side of the cavity, and the top end of the movable door is hinged with the ball barrel; an opening is formed in the right side of the bottom end of the cavity; the pushing block is connected with the second support plate in a sliding manner and acts with the small ball falling into the cavity through the opening to push the small ball out of the cavity;
the horizontal projectile assembly is arranged on the left side of the projectile pushing assembly and comprises a back plate and a projectile guide table, the back plate is fixedly connected with the frame, and the projectile guide table is detachably arranged on the back plate; a plurality of rows of jacks are arranged on the back plate at intervals from top to bottom; the ball guide table is high in left end and low in right end, a baffle is arranged on the front side, and an insertion rod used for inserting the insertion hole is arranged on the rear side.
Preferably, the bottom of the push block is provided with a slide block, the second support plate is provided with a slide rail in the left-right direction, and the slide block is connected with the slide rail in a sliding manner; a first spring is connected between the right end of the push block and the third support plate; the right end of the push block is also connected with a pull rope, and the right end of the pull rope penetrates through the third support plate.
Preferably, also include the rotary table assembly; the turntable assembly comprises a rotating shaft, a rotating disc, a crank and a mounting seat; the left side of the right side plate is also provided with a wire guiding wheel, and the pull rope rounds the wire guiding wheel to be switched from the horizontal direction to the vertical direction; a mounting seat is arranged on the left side of the right side plate and below the corresponding wire guide wheel, and a rotating shaft is arranged on the mounting seat; the rotating disc is sleeved with the rotating shaft through a shaft sleeve; an annular folded edge is arranged at the front side of the rotating disc; a convex column is arranged on the disc surface of the rotating disc; a crank is fixedly connected to the rotating shaft, a groove is formed in the outer end of the crank, and an inner rod is arranged in the groove; the inner rod can clamp the protruding column after extending out of the groove, and the inner rod is not contacted with the protruding column after being retracted into the groove; the pull rope is connected with the side wall of the rotating disc; the front end of the rotating shaft is also provided with a first bevel gear, the first bevel gear is vertically meshed with a second bevel gear, the second bevel gear is connected with a first rotating shaft, and the right end of the first rotating shaft penetrates through the right side plate and is connected with a hand wheel.
Preferably, the side wall of the rotating disc is provided with a plurality of rope tying lugs at intervals, and the pulling rope is tied on one of the rope tying lugs.
Preferably, the buoyancy assembly comprises a first water tank and a ball receiving basket; the first water tank is arranged below the right end of the ball guide table; the first water tank is arranged on the bottom plate, the top of the first water tank is provided with an opening, and water is filled in the first water tank; the ball receiving basket is arranged in the first water tank and floats on the water surface in an initial state; the right side wall of the first water tank is also connected with a drain pipe.
Preferably, a plurality of air bags are arranged at the bottom of the ball catching basket; the side wall of the ball receiving basket is also provided with a plurality of rollers, and the rollers are in rolling contact with the inner wall of the first water tank.
Preferably, the buoyancy module still includes the tensiometer, and No. one water tank right side wall top still is connected with the mounting bracket, and the tensiometer dress is on the mounting bracket, and the bottom is connected with the ball receiving basket through the rope.
Preferably, the lever assembly is arranged on the right side of the buoyancy assembly and comprises a rotating seat, a rotating plate and a water receiving cup; the rotating seat is fixed on the bottom plate, and the middle section of the rotating plate is hinged with the rotating seat; the left end and the right end of the rotating plate are provided with annular cup sleeves, the water receiving cup is clamped in the cup sleeves, and the water receiving cup at the left end is aligned to the outlet of the drainage pipe.
Preferably, the device further comprises a pumping and draining assembly, wherein the pumping and draining assembly comprises a piston cylinder and a second water tank; a fourth support plate is connected to the left side of the right side plate above the corresponding lever assembly, and the piston cylinder and the second water tank are arranged on the fourth support plate; a piston plate which moves up and down is arranged in the piston cylinder, the top of the piston plate is connected with a piston rod, and the piston rod extends out of the piston cylinder and is connected with a pressing plate; the pressing plate and the top of the piston cylinder are also connected with a second spring; the bottom of the piston cylinder is communicated with a second water tank through a first pipe, and the first pipe is provided with a one-way valve for controlling water to flow into the piston cylinder from the second water tank; the bottom of the piston cylinder is also connected with a second pipe, the bottom end of the second pipe faces the right water receiving cup, and a one-way valve for controlling water to flow into the second pipe from the piston cylinder is further arranged on the second pipe.
Preferably, the left end of the first rotating shaft is connected with a first driving wheel, a second rotating shaft is arranged below the first rotating shaft in parallel, the right end of the second rotating shaft is rotatably connected with the right side plate, the left end of the second rotating shaft is provided with a second driving wheel, and the first driving wheel is in transmission connection with the second driving wheel through a transmission belt; a cam is also arranged on the second rotating shaft and pressed on the top surface of the pressing plate; the bottom of the second support plate is connected with a fifth support plate, and the left ends of the first rotating shaft and the second rotating shaft penetrate through and are rotatably connected with the fifth support plate.
(III) advantageous effects
The invention provides a multifunctional teaching aid for high school physics teaching demonstration, which has the following advantages:
the pull rope is pulled through the turntable assembly to enable the push block to move rightwards and compress the first spring, then the pull rope is automatically loosened, the push block is deformed by the first spring to recover to enter the opening from the right side and push the small ball to move leftwards, the movable door is pushed away, and the small ball horizontally does horizontal projectile motion demonstration from the left end of the second support plate. The push block has different right moving distances, different generated thrust and different corresponding flat throwing paths, and is convenient to provide comparative teaching.
2, the turntable assembly is simple and quick to operate, the first rotating shaft is driven to rotate through the hand wheel, the bevel gear drives the rotating shaft to rotate, the crank rotates along with the rotating shaft, and the rotating disc is provided with the shaft sleeve and cannot move at the moment; when the outer end of the crank moves to face downwards, the inner rod extends out of the groove due to gravity and clamps the protruding column from one side of the protruding column, so that the rotating disc is driven to rotate, the pull rope is wound up, and the push block is correspondingly pulled to move rightwards; when the crank outer end moved to upwards, the inner rod still retracted the groove due to gravity, the protruding column lost the fastener, the rotating disc reversed, the spring deformation recovered corresponding to the first spring, and the push block moved to the left.
And 3, inserting the ball guide table on the back plate, and forming a ball guide slideway by the baffle and the back plate. The small balls which are horizontally thrown fall into the ball receiving basket from the right end under the guidance of the ball guide slide way. The weight of the ball receiving basket is increased, the ball receiving basket moves downwards, the water level rises, redundant water is discharged from the water discharging pipe, and buoyancy demonstration is carried out by reacting buoyancy change through water discharging amount change.
4, the water receiving cup on the left side receives water of the first water tank; and loosen after pressing the clamp plate simultaneously, because No. two spring actions to the cooperation check valve, the piston cylinder accomplishes the work of following No. two bank of tubes exhaust with the water in No. two water tanks, and the water cup on right side receives the water of No. two water tanks, carries out lever principle's demonstration.
5, still rotate a pivot through the hand wheel, accomplish foretell flat throwing motion demonstration, buoyancy change demonstration and the partial demonstration of lever principle on the one hand, on the other hand, a pivot still drives the pivot rotation No. two to make the cam effect at the clamp plate, realize the automatic pump drainage of piston cylinder, the water receiving cup moisturizing to the right side makes things convenient for the lever principle to demonstrate.
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 for the present invention and protect some embodiments, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a block diagram of a ball pushing assembly;
FIG. 3 is a block diagram of the turntable assembly;
FIG. 4 is a perspective view of the turntable assembly;
FIG. 5 is a block diagram of another view of the turntable assembly (with the hem removed);
FIG. 6 is a block diagram of a flat throw assembly;
FIG. 7 is a view showing the structure of the ball guide table;
FIG. 8 is a structural view of the buoyancy module;
fig. 9 is a block diagram of the pumping assembly.
In the drawings, the components represented by the respective reference numerals are listed below:
101-bottom plate, 102-right side plate, 103-top plate, 104-left side plate, and 105-fourth support plate;
2-ball barrel, 201-movable door, 202-small ball, 203-second support plate, 204-sliding rail, 205-pushing block, 206-sliding block, 207-first spring, 208-third support plate, 209-pull rope and 210-guide wheel;
3-a turntable assembly, 301-a mounting base, 302-a rotary disc, 3021-a raised column, 3022-a rope fastening lug, 3023-a shaft sleeve, 3024-a flange, 303-a crank, 3031-an inner rod, 304-a first bevel gear, 305-a second bevel gear, 306-a first rotating shaft, 307-a hand wheel, 308-a rotating shaft, 309-a fifth support plate, 310-a first transmission wheel, 311-a transmission belt, 312-a second transmission wheel, 313-a second rotating shaft and 314-a cam;
4-pumping and draining assembly, 401-pressing plate, 402-piston rod, 403-spring II, 404-piston plate, 405-piston cylinder, 406-water tank II, 407-first pipe and 408-second pipe;
5-lever assembly, 501-rotating seat, 502-rotating plate, 503-cup sleeve, 504-water receiving cup;
6-buoyancy module, 601-first water tank, 602-ball receiving basket, 603-air bag, 604-water discharging pipe, 605-roller, 606-mounting frame, 607-tension meter;
7-horizontal polishing component, 701-back plate, 702-baffle, 703-ball guide table, 704-inserted rod and 705-inserted hole.
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.
Example 1
A multifunctional teaching aid for high school physics teaching demonstration comprises a frame, a ball pushing assembly, a flat throwing assembly 7, a buoyancy assembly 6 and a lever assembly 5;
the frame comprises a bottom plate 101, a left side plate 104, a right side plate 102 and a top plate 103, wherein the left side plate 104 and the right side plate 102 are respectively and fixedly connected to the left end and the right end of the bottom plate 101, and the top ends of the left side plate 104 and the right side plate 102 are connected through the top plate 103;
the ball pushing assembly comprises a ball barrel 2, a second support plate 203 and a push block 205; the second support plate 203 is arranged below the top plate 103, and the right end of the second support plate is fixedly connected with the top plate 103 through a third support plate 208; the ball barrel 2 is fixedly connected to the second support plate, and the top end of the ball barrel is provided with a ball adding port; the bottom end of the ball barrel 2 is provided with a cavity for accommodating a single small ball, the left side of the cavity is provided with a movable door 201, and the top end of the movable door 201 is hinged with the ball barrel 2; an opening is formed in the right side of the bottom end of the cavity; the push block 205 is connected with the second support plate 203 in a sliding manner, and acts on the small ball 202 falling into the chamber through the opening to push the small ball 202 out of the chamber;
the horizontal projectile assembly 7 is arranged on the left side of the projectile pushing assembly and comprises a back plate 701 and a ball guide table 703, the back plate 701 is fixedly connected with a frame, and the ball guide table 703 is detachably arranged on the back plate 701; a plurality of rows of jacks 705 are arranged on the back plate 701 at intervals from top to bottom; the ball guide table 703 has a high left end and a low right end, a baffle 702 is arranged on the front side, and an insertion rod 704 for inserting the insertion hole 705 is arranged on the rear side.
The bottom of the push block 205 is provided with a slide block 206, the second support plate 203 is provided with a slide rail 204 in the left-right direction, and the slide block 206 is connected with the slide rail 204 in a sliding manner; a first spring 207 is connected between the right end of the push block 205 and the third support plate 208; the right end of the push block 205 is also connected with a pull rope 209, and the right end of the pull rope 209 penetrates through a third support plate 208.
Specifically, a plurality of small balls are placed in the ball barrel 2, and in order to facilitate ball placement, the top of the ball barrel 2 penetrates through the top plate 103. The lower section of the ball cylinder 2 is of a necking structure, the outlet of the ball cylinder corresponds to the diameter of a single small ball, and the ball cylinder is matched with a cavity at the bottom end to enable the small ball to fall into one small ball at each time; pulling the pull rope 209 to make the push block 205 move to the right and compress the first spring 207, then releasing the pull rope 209, the push block 205 is deformed by the first spring 207 to restore to enter the opening from the right side and push the small ball to move to the left, the movable door 201 is pushed away, and the small ball horizontally makes a horizontal projectile motion from the left end of the second support plate 203. The push block 205 has different right movement distances, different generated thrust forces and different corresponding flat throwing paths, thereby being convenient for providing comparative teaching.
Example 2
A multifunctional teaching aid for high school physics teaching demonstration comprises a frame, a ball pushing assembly, a flat throwing assembly 7, a buoyancy assembly 6 and a lever assembly 5;
the frame comprises a bottom plate 101, a left side plate 104, a right side plate 102 and a top plate 103, wherein the left side plate 104 and the right side plate 102 are respectively and fixedly connected to the left end and the right end of the bottom plate 101, and the top ends of the left side plate 104 and the right side plate 102 are connected through the top plate 103;
the ball pushing assembly comprises a ball barrel 2, a second support plate 203 and a push block 205; the second support plate 203 is arranged below the top plate 103, and the right end of the second support plate is fixedly connected with the top plate 103 through a third support plate 208; the ball barrel 2 is fixedly connected to the second support plate, and the top end of the ball barrel is provided with a ball adding port; the bottom end of the ball barrel 2 is provided with a cavity for accommodating a single small ball, the left side of the cavity is provided with a movable door 201, and the top end of the movable door 201 is hinged with the ball barrel 2; an opening is formed in the right side of the bottom end of the cavity; the push block 205 is connected with the second support plate 203 in a sliding manner and acts with the small ball 202 falling into the chamber through the opening to push the small ball 202 out of the chamber;
the horizontal projectile assembly 7 is arranged on the left side of the projectile pushing assembly and comprises a back plate 701 and a ball guide table 703, the back plate 701 is fixedly connected with a frame, and the ball guide table 703 is detachably arranged on the back plate 701; a plurality of rows of jacks 705 are arranged on the back plate 701 at intervals from top to bottom; the ball guide table 703 has a high left end and a low right end, a baffle 702 is arranged on the front side, and an insertion rod 704 for inserting the insertion hole 705 is arranged on the rear side.
The bottom of the push block 205 is provided with a slide block 206, the second support plate 203 is provided with a slide rail 204 in the left-right direction, and the slide block 206 is connected with the slide rail 204 in a sliding manner; a first spring 207 is connected between the right end of the push block 205 and the third support plate 208; the right end of the push block 205 is also connected with a pull rope 209, and the right end of the pull rope 209 penetrates through a third support plate 208.
Also comprises a turntable component 3; the turntable assembly 3 comprises a rotating shaft 208, a rotating disc 302, a crank 303 and a mounting seat 301; a wire guide wheel 210 is further mounted on the left side of the right side plate 102, and the pull rope 209 bypasses the wire guide wheel 210 and is switched from the horizontal direction to the vertical direction; a mounting seat 301 is further fixedly connected to the left side of the right side plate 102 below the corresponding guide wire wheel 210, and a rotating shaft 308 is mounted on the mounting seat 301; the rotating disc 302 is sleeved with the rotating shaft 308 through a shaft sleeve 3023; an annular folded edge 3024 is arranged on the front side of the rotating disc 308; a convex column 3021 is arranged on the surface of the rotating disc 302; a crank 303 is fixedly connected to the rotating shaft 208, a groove is processed at the outer end of the crank 303, and an inner rod 3031 is arranged in the groove; the pull rope 209 is connected with the side wall of the rotating disc 302; the front end of the rotating shaft 308 is also provided with a first bevel gear 304, the first bevel gear 304 is vertically meshed with a second bevel gear 305, the second bevel gear 305 is connected with a first rotating shaft 306, and the right end of the first rotating shaft 306 penetrates through the right side plate 102 and is connected with a hand wheel 307.
Specifically, the first rotating shaft 306 is driven to rotate by the hand wheel 307, the rotating shaft 308 is driven to rotate by bevel gear transmission, the crank 303 rotates along with the rotating shaft 308, and the rotating disc 302 is provided with the shaft sleeve 2023, so that the crank cannot move temporarily; when the outer end of the crank 303 moves to face downwards, the inner rod 3031 extends out of the groove 3031 due to gravity, and due to the existence of the annular folded edge 3024, the inner rod 3031 cannot fall off, the convex post 3021 is clamped from one side of the convex post 3021, and the rotating disc 302 is driven to rotate, so that the pull rope 209 is rolled up and moves to the right corresponding to the pulling of the push block 205; when the outer end of the crank 303 moves to the upward direction, the inner rod 3031 still retracts into the groove due to gravity, the convex column 3021 loses the clamping piece, the rotating disc 302 rotates reversely, the deformation of the spring 207 is restored correspondingly, and the push block 205 moves leftwards;
wherein, a plurality of tie ears 3022 are arranged at intervals on the side wall of the rotating disc 302, and the pull rope 309 is tied on one of the tie ears 3022, so that the deformation of the first spring 207 can be adjusted conveniently, and the pushing force of the pushing block 205 can be adjusted conveniently.
Example 3
A multifunctional teaching aid for high school physics teaching demonstration comprises a frame, a ball pushing assembly, a flat throwing assembly 7, a buoyancy assembly 6 and a lever assembly 5;
the frame comprises a bottom plate 101, a left side plate 104, a right side plate 102 and a top plate 103, wherein the left side plate 104 and the right side plate 102 are respectively and fixedly connected to the left end and the right end of the bottom plate 101, and the top ends of the left side plate 104 and the right side plate 102 are connected through the top plate 103;
the ball pushing assembly comprises a ball barrel 2, a second support plate 203 and a push block 205; the second support plate 203 is arranged below the top plate 103, and the right end of the second support plate is fixedly connected with the top plate 103 through a third support plate 208; the ball barrel 2 is fixedly connected to the second support plate, and the top end of the ball barrel is provided with a ball adding port; the bottom end of the ball barrel 2 is provided with a cavity for accommodating a single small ball, the left side of the cavity is provided with a movable door 201, and the top end of the movable door 201 is hinged with the ball barrel 2; an opening is formed in the right side of the bottom end of the cavity; the push block 205 is connected with the second support plate 203 in a sliding manner and acts with the small ball 202 falling into the chamber through the opening to push the small ball 202 out of the chamber;
the horizontal projectile component 7 is arranged on the left side of the ball pushing component and comprises a back plate 701 and a ball guide table 703, the back plate 701 is fixedly connected with a frame, and the ball guide table 703 is detachably arranged on the back plate 701; a plurality of rows of jacks 705 are arranged on the back plate 701 at intervals from top to bottom; the ball guide table 703 has a high left end and a low right end, a baffle 702 is arranged on the front side, and an insertion rod 704 for inserting the insertion hole 705 is arranged on the rear side.
The bottom of the push block 205 is provided with a slide block 206, the second support plate 203 is provided with a slide rail 204 in the left-right direction, and the slide block 206 is connected with the slide rail 204 in a sliding manner; a first spring 207 is connected between the right end of the push block 205 and the third support plate 208; the right end of the push block 205 is also connected with a pull rope 209, and the right end of the pull rope 209 penetrates through a third support plate 208.
Also comprises a turntable component 3; the turntable component 3 comprises a rotating shaft 208, a rotating disc 302, a crank 303 and a mounting seat 301; a wire guide wheel 210 is further mounted on the left side of the right side plate 102, and the pull rope 209 bypasses the wire guide wheel 210 and is switched from the horizontal direction to the vertical direction; a mounting seat 301 is fixedly connected to the left side of the right side plate 102 below the corresponding wire guide wheel 210, and a rotating shaft 308 is mounted on the mounting seat 301; the rotating disc 302 is sleeved with the rotating shaft 308 through a shaft sleeve 3023; an annular folded edge 3024 is arranged on the front side of the rotating disc 308; a convex column 3021 is arranged on the surface of the rotating disc 302; a crank 303 is fixedly connected to the rotating shaft 208, a groove is formed in the outer end of the crank 303, and an inner rod 3031 is arranged in the groove; the pull rope 209 is connected with the side wall of the rotating disc 302; the front end of the rotating shaft 308 is also provided with a first bevel gear 304, the first bevel gear 304 is vertically meshed with a second bevel gear 305, the second bevel gear 305 is connected with a first rotating shaft 306, and the right end of the first rotating shaft 306 penetrates through the right side plate 102 and is connected with a hand wheel 307.
Wherein, the buoyancy component 6 comprises a first water tank 601 and a ball receiving basket 602; the first water tank 601 is arranged below the right end of the ball guide table 703; the first water tank 601 is arranged on the bottom plate 101, the top of the first water tank is provided with an opening, and water is filled in the first water tank; the ball receiving basket 602 is arranged in the first water tank 601 and floats on the water surface in an initial state; the right side wall of the first water tank 601 is also connected with a drain pipe 604.
Wherein, the bottom of the ball catching basket 602 is also provided with a plurality of air bags 603 to ensure that the initial state floats on the water surface; the side wall of the ball receiving basket 602 is also provided with a plurality of rollers 605, and the rollers 605 are in rolling contact with the inner wall of the first water tank 601, so that the ball receiving basket 602 is prevented from shaking left and right.
Specifically, the ball guide table 703 is inserted into the back plate 701, and the baffle 702 and the back plate 701 form a ball guide slideway. The balls which are moved by flat throw fall into the ball receiving basket 604 from the right end under the guidance of the ball guide slide way. The weight of the ball receiving basket 604 increases and moves down, the water level rises, and the excess water is discharged from the water discharge pipe 604, and the change of the buoyancy is reflected by the change of the water discharge amount.
Example 4
A multifunctional teaching aid for high school physics teaching demonstration comprises a frame, a ball pushing assembly, a flat throwing assembly 7, a buoyancy assembly 6 and a lever assembly 5;
the frame comprises a bottom plate 101, a left side plate 104, a right side plate 102 and a top plate 103, wherein the left side plate 104 and the right side plate 102 are respectively and fixedly connected to the left end and the right end of the bottom plate 101, and the top ends of the left side plate 104 and the right side plate 102 are connected through the top plate 103;
the ball pushing assembly comprises a ball barrel 2, a second support plate 203 and a push block 205; the second support plate 203 is arranged below the top plate 103, and the right end of the second support plate is fixedly connected with the top plate 103 through the third support plate 208; the ball barrel 2 is fixedly connected to the second support plate, and the top end of the ball barrel is provided with a ball adding port; the bottom end of the ball barrel 2 is provided with a cavity for accommodating a single small ball, the left side of the cavity is provided with a movable door 201, and the top end of the movable door 201 is hinged with the ball barrel 2; an opening is formed in the right side of the bottom end of the cavity; the push block 205 is connected with the second support plate 203 in a sliding manner, and acts on the small ball 202 falling into the chamber through the opening to push the small ball 202 out of the chamber;
the horizontal projectile assembly 7 is arranged on the left side of the projectile pushing assembly and comprises a back plate 701 and a ball guide table 703, the back plate 701 is fixedly connected with a frame, and the ball guide table 703 is detachably arranged on the back plate 701; a plurality of rows of jacks 705 are arranged on the back plate 701 at intervals from top to bottom; the ball guide table 703 has a high left end and a low right end, a baffle 702 is arranged on the front side, and an insertion rod 704 for inserting the insertion hole 705 is arranged on the rear side.
The bottom of the push block 205 is provided with a slide block 206, the second support plate 203 is provided with a slide rail 204 in the left-right direction, and the slide block 206 is connected with the slide rail 204 in a sliding manner; a first spring 207 is connected between the right end of the push block 205 and the third support plate 208; the right end of the push block 205 is also connected with a pull rope 209, and the right end of the pull rope 209 penetrates through a third support plate 208.
Also comprises a turntable component 3; the turntable assembly 3 comprises a rotating shaft 208, a rotating disc 302, a crank 303 and a mounting seat 301; a wire guide wheel 210 is further mounted on the left side of the right side plate 102, and the pull rope 209 bypasses the wire guide wheel 210 and is switched from the horizontal direction to the vertical direction; a mounting seat 301 is further fixedly connected to the left side of the right side plate 102 below the corresponding guide wire wheel 210, and a rotating shaft 308 is mounted on the mounting seat 301; the rotating disc 302 is sleeved with the rotating shaft 308 through a shaft sleeve 3023; an annular folded edge 3024 is arranged on the front side of the rotating disc 308; a convex column 3021 is arranged on the surface of the rotating disc 302; a crank 303 is fixedly connected to the rotating shaft 208, a groove is processed at the outer end of the crank 303, and an inner rod 3031 is arranged in the groove; the pull rope 209 is connected with the side wall of the rotating disc 302; the front end of the rotating shaft 308 is also provided with a first bevel gear 304, the first bevel gear 304 is vertically engaged with a second bevel gear 305, the second bevel gear 305 is connected with a first rotating shaft 306, and the right end of the first rotating shaft 306 penetrates through the right side plate 102 and is connected with a hand wheel 307.
The buoyancy assembly 6 comprises a first water tank 601 and a ball receiving basket 602; the first water tank 601 is arranged below the right end of the ball guide table 703; the first water tank 601 is arranged on the bottom plate 101, the top of the first water tank is provided with an opening, and water is filled in the first water tank; the ball receiving basket 602 is arranged in the first water tank 601 and floats on the water surface in an initial state; the right side wall of the first water tank 601 is also connected with a drain pipe 604.
Wherein, the bottom of the ball-catching basket 602 is also provided with a plurality of air bags 603 to ensure that the initial state floats on the water surface; the side wall of the ball receiving basket 602 is also provided with a plurality of rollers 605, and the rollers 605 are in rolling contact with the inner wall of the first water tank 601, so that the ball receiving basket 602 is prevented from shaking left and right.
Wherein, buoyancy module still includes tensiometer 607, and No. one water tank 601 right side wall top still is connected with mounting bracket 606, and tensiometer 607 adorns on mounting bracket 606, and the bottom is connected with ball receiving basket 602 through the rope, also audio-visual buoyancy change of reflecting through tensiometer 607.
The lever assembly 5 is arranged on the right side of the buoyancy assembly 6 and comprises a rotating seat 501, a rotating plate 502 and a water receiving cup 504; the rotating seat 501 is fixed on the bottom plate 101, and the middle section of the rotating plate 502 is hinged with the rotating seat 501; the left end and the right end of the rotating plate 502 are fixedly connected with an annular cup sleeve 503, the water receiving cup 504 is clamped in the cup sleeve 503, and the water receiving cup 504 at the left end is aligned to the outlet of the drainage pipe 604 and receives water of the first water tank 601.
The device also comprises a pumping and draining assembly 4, wherein the pumping and draining assembly 4 comprises a piston cylinder 405 and a second water tank 406; a fourth support plate 105 is further connected to the left side of the right side plate 102 corresponding to the upper part of the lever assembly 5, and the piston cylinder 405 and the second water tank 406 are arranged on the fourth support plate 105; a piston plate 404 which moves up and down is arranged in the piston cylinder 405, the top of the piston plate 404 is connected with a piston rod 402, and the piston rod 402 extends out of the piston cylinder 405 and is connected with a pressure plate 401; the top of the pressing plate 401 and the top of the piston cylinder 405 are also connected with a second spring 403; the bottom of the piston cylinder 401 is communicated with a second water tank 406 through a first pipe 407, and the first pipe 407 is provided with a one-way valve for controlling water to flow into the piston cylinder 405 from the second water tank 406; the bottom of the piston cylinder 405 is also connected with a second pipe 408, the bottom end of the second pipe 408 faces the right water receiving cup 504, and the second pipe 408 is also provided with a one-way valve for controlling water to flow into the second pipe 408 from the piston cylinder.
Specifically, the water receiving cup 504 is fixed in the cup sleeve 503, so that the rotating plate 502 is prevented from rotating and the water receiving cup 504 is prevented from overturning; the water receiving cup 504 on the left side receives water of the first water tank 601; meanwhile, after the pressing plate 401 is pressed, the pressing plate is loosened, the piston cylinder 405 finishes the work of discharging water in the second water tank 406 from the second pipe 408 due to the action of the second spring 403 and matching with the one-way valve, the water receiving cup 504 on the right side receives the water in the second water tank 406, and the lever principle is demonstrated.
Example 5
A multifunctional teaching aid for high school physics teaching demonstration comprises a frame, a ball pushing assembly, a flat throwing assembly 7, a buoyancy assembly 6 and a lever assembly 5;
the frame comprises a bottom plate 101, a left side plate 104, a right side plate 102 and a top plate 103, wherein the left side plate 104 and the right side plate 102 are respectively and fixedly connected to the left end and the right end of the bottom plate 101, and the top ends of the left side plate 104 and the right side plate 102 are connected through the top plate 103;
the ball pushing assembly comprises a ball barrel 2, a second support plate 203 and a push block 205; the second support plate 203 is arranged below the top plate 103, and the right end of the second support plate is fixedly connected with the top plate 103 through a third support plate 208; the ball barrel 2 is fixedly connected to the second support plate, and the top end of the ball barrel is provided with a ball adding port; the bottom end of the ball barrel 2 is provided with a cavity for accommodating a single small ball, the left side of the cavity is provided with a movable door 201, and the top end of the movable door 201 is hinged with the ball barrel 2; an opening is formed in the right side of the bottom end of the cavity; the push block 205 is connected with the second support plate 203 in a sliding manner and acts with the small ball 202 falling into the chamber through the opening to push the small ball 202 out of the chamber;
the horizontal projectile assembly 7 is arranged on the left side of the projectile pushing assembly and comprises a back plate 701 and a ball guide table 703, the back plate 701 is fixedly connected with a frame, and the ball guide table 703 is detachably arranged on the back plate 701; a plurality of rows of jacks 705 are arranged on the back plate 701 at intervals from top to bottom; the ball guide table 703 has a high left end and a low right end, a baffle 702 is arranged on the front side, and an insertion rod 704 for inserting the insertion hole 705 is arranged on the rear side.
The bottom of the push block 205 is provided with a slide block 206, the second support plate 203 is provided with a slide rail 204 in the left-right direction, and the slide block 206 is connected with the slide rail 204 in a sliding manner; a first spring 207 is connected between the right end of the push block 205 and the third support plate 208; the right end of the push block 205 is also connected with a pull rope 209, and the right end of the pull rope 209 penetrates through a third support plate 208.
Also comprises a turntable component 3; the turntable component 3 comprises a rotating shaft 208, a rotating disc 302, a crank 303 and a mounting seat 301; a wire guide wheel 210 is further mounted on the left side of the right side plate 102, and the pull rope 209 bypasses the wire guide wheel 210 and is switched from the horizontal direction to the vertical direction; a mounting seat 301 is fixedly connected to the left side of the right side plate 102 below the corresponding wire guide wheel 210, and a rotating shaft 308 is mounted on the mounting seat 301; the rotating disc 302 is sleeved with the rotating shaft 308 through a shaft sleeve 3023; an annular folded edge 3024 is arranged on the front side of the rotating disc 308; a convex column 3021 is arranged on the surface of the rotating disc 302; a crank 303 is fixedly connected to the rotating shaft 208, a groove is processed at the outer end of the crank 303, and an inner rod 3031 is arranged in the groove; the pull rope 209 is connected with the side wall of the rotating disc 302; the front end of the rotating shaft 308 is also provided with a first bevel gear 304, the first bevel gear 304 is vertically engaged with a second bevel gear 305, the second bevel gear 305 is connected with a first rotating shaft 306, and the right end of the first rotating shaft 306 penetrates through the right side plate 102 and is connected with a hand wheel 307.
Wherein, the buoyancy module 6 comprises a first water tank 601, a ball receiving basket 602 and a tension meter 607; the first water tank 601 is arranged below the right end of the ball guide table 703; the first water tank 601 is arranged on the bottom plate 101, the top of the first water tank is provided with an opening, and water is filled in the first water tank; the ball receiving basket 602 is arranged in the first water tank 601 and floats on the water surface in an initial state; the top of the right side wall of the first water tank 601 is also connected with an installation frame 606, a tension meter 607 is arranged on the installation frame 606, and the bottom end of the tension meter is connected with a ball receiving basket 602 through a rope; the right side wall of the first water tank 601 is also connected with a drain pipe 604.
Wherein, the bottom of the ball catching basket 602 is also provided with a plurality of air bags 603 to ensure that the initial state floats on the water surface; a plurality of rollers 605 are further arranged on the side wall of the ball receiving basket 602, the rollers 605 are in rolling contact with the inner wall of the first water tank 601, and the ball receiving basket 602 is prevented from shaking left and right
The lever assembly 5 is arranged on the right side of the buoyancy assembly 6 and comprises a rotating seat 501, a rotating plate 502 and a water receiving cup 504; the rotating seat 501 is fixed on the bottom plate 101, and the middle section of the rotating plate 502 is hinged with the rotating seat 501; the left end and the right end of the rotating plate 502 are fixedly connected with an annular cup sleeve 503, the water receiving cup 504 is clamped in the cup sleeve 503, and the water receiving cup 504 at the left end is aligned to the outlet of the drainage pipe 604 and receives water of the first water tank 601.
The device also comprises a pumping and draining assembly 4, wherein the pumping and draining assembly 4 comprises a piston cylinder 405 and a second water tank 406; a fourth support plate 105 is further connected to the left side of the right side plate 102 corresponding to the upper part of the lever assembly 5, and the piston cylinder 405 and the second water tank 406 are arranged on the fourth support plate 105; a piston plate 404 which moves up and down is arranged in the piston cylinder 405, the top of the piston plate 404 is connected with a piston rod 402, and the piston rod 402 extends out of the piston cylinder 405 and is connected with a pressure plate 401; the top of the pressing plate 401 and the top of the piston cylinder 405 are also connected with a second spring 403; the bottom of the piston cylinder 401 is communicated with a second water tank 406 through a first pipe 407, and the first pipe 407 is provided with a one-way valve for controlling water to flow into the piston cylinder 405 from the second water tank 406; the bottom of the piston cylinder 405 is also connected with a second pipe 408, the bottom end of the second pipe 408 faces the right water receiving cup 504, and the second pipe 408 is also provided with a one-way valve for controlling water to flow into the second pipe 408 from the piston cylinder.
The left end of the first rotating shaft 306 is connected with a first driving wheel 310, a second rotating shaft 313 is arranged below the first rotating shaft 306 in parallel, the right end of the second rotating shaft 313 is rotatably connected with the right side plate 102, a second driving wheel 312 is arranged at the left end of the second rotating shaft 313, and the first driving wheel 310 and the second driving wheel 312 are in driving connection through a driving belt 311; the second rotating shaft 313 is also provided with a cam 315, and the cam 314 is pressed on the top surface of the pressing plate 401; no. two support plate 203 bottom is connected with No. five support plate 309, and No. one pivot 306, no. two pivot 313 left end pass and rotate and connect No. five support plate 309.
Specifically, the first rotating shaft 306 is rotated by the hand wheel 307, so that the horizontal projectile motion demonstration, the buoyancy change demonstration and the lever principle partial demonstration are completed on one hand, and on the other hand, the first rotating shaft 306 drives the second rotating shaft 313 to rotate, so that the cam 314 acts on the pressing plate, the automatic pumping and drainage of the piston cylinder 405 are realized, water is supplied to the water receiving cup on the right side, and the lever principle demonstration is facilitated.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., 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 forms 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 understand the invention for and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (2)
1. A multifunctional teaching aid for high school physics teaching demonstration is characterized by comprising a frame, a ball pushing assembly, a flat throwing assembly (7), a buoyancy assembly (6) and a lever assembly (5);
the frame comprises a bottom plate (101), a left side plate (104), a right side plate (102) and a top plate (103), the left side plate (104) and the right side plate (102) are fixedly connected to the left end and the right end of the bottom plate (101) respectively, and the top ends of the left side plate (104) and the right side plate (102) are connected through the top plate (103);
the ball pushing assembly comprises a ball barrel (2), a second support plate (203) and a push block (205); the second support plate (203) is arranged below the top plate (103), and the right end of the second support plate is fixedly connected with the top plate (103) through a third support plate (208); the ball barrel (2) is arranged on the second support plate (203), and the top end of the ball barrel is provided with a ball adding port; a cavity for containing a single small ball (202) is arranged at the bottom end of the ball barrel (2), a movable door (201) is arranged on the left side of the cavity, and the top end of the movable door (201) is hinged with the ball barrel (2); an opening is formed in the right side of the bottom end of the cavity; the push block (205) is connected with the second support plate (203) in a sliding manner, and acts with the small ball (202) falling into the chamber through the opening to push the small ball (202) out of the chamber;
the horizontal projectile component (7) is arranged on the left side of the ball pushing component and comprises a back plate (701) and a ball guide table (703), the back plate (701) is fixedly connected with a frame, and the ball guide table (703) is detachably arranged on the back plate (701); a plurality of rows of jacks (705) are arranged on the back plate (701) from top to bottom at intervals; the ball guide table (703) is high at the left end and low at the right end, a baffle plate (702) is arranged at the front side, and an insertion rod (704) for inserting an insertion hole (705) is arranged at the rear side;
a sliding block (206) is arranged at the bottom of the push block (205), a sliding rail (204) in the left-right direction is arranged on the second support plate (203), and the sliding block (206) is connected with the sliding rail (204) in a sliding manner; a first spring (207) is connected between the right end of the push block (205) and the third support plate (208); the right end of the push block (205) is also connected with a pull rope (209), and the right end of the pull rope (209) penetrates through a third support plate (208);
also comprises a turntable component (3); the turntable assembly (3) comprises a rotating shaft (308), a rotating disc (302), a crank (303) and a mounting seat (301); the left side of the right side plate (102) is also provided with a wire guide wheel (210), and a pull rope (209) bypasses the wire guide wheel (210) and is switched from the horizontal direction to the vertical direction; a mounting seat (301) is further arranged on the left side of the right side plate (102) and below the corresponding wire guide wheel (210), and a rotating shaft (308) is arranged on the mounting seat (301); the rotating disc (302) is sleeved with the rotating shaft (308) through a shaft sleeve (3023); an annular folded edge (3024) is arranged on the front side of the rotating disc (302); a convex column (3021) is arranged on the disc surface of the rotating disc (302); a crank (303) is fixedly connected to the rotating shaft (308), a groove is formed in the outer end of the crank (303), and an inner rod (3031) is arranged in the groove; the inner rod (3031) can clamp the convex column (3021) after extending out of the groove, and the inner rod (3031) does not contact with the convex column (3021) after being retracted into the groove; the pull rope (209) is connected with the side wall of the rotating disc (302); a first bevel gear (304) is further arranged at the front end of the rotating shaft (308), a second bevel gear (305) is vertically meshed with the first bevel gear (304), the second bevel gear (305) is connected with a first rotating shaft (306), and the right end of the first rotating shaft (306) penetrates through the right side plate (102) and is connected with a hand wheel (307);
the buoyancy component (6) comprises a first water tank (601) and a ball receiving basket (602); the first water tank (601) is arranged below the right end of the ball guide table (703); the first water tank (601) is arranged on the bottom plate (101), the top of the first water tank is provided with an opening, and water is filled in the first water tank; the ball receiving basket (602) is arranged in the first water tank (601) and floats on the water surface in an initial state; the right side wall of the first water tank (601) is also connected with a drain pipe (604);
the bottom of the ball receiving basket (602) is also provided with a plurality of air bags (603); the side wall of the ball receiving basket (602) is also provided with a plurality of rollers (605), and the rollers (605) are in rolling contact with the inner wall of the first water tank (601);
the buoyancy module (6) further comprises a tension meter (607), the top of the right side wall of the first water tank (601) is further connected with a mounting frame (606), the tension meter (607) is arranged on the mounting frame (606), and the bottom end of the tension meter is connected with the ball receiving basket (602) through a rope;
the lever assembly (5) is arranged on the right side of the buoyancy assembly (6) and comprises a rotating seat (501), a rotating plate (502) and a water receiving cup (504); the rotating seat (501) is fixed on the bottom plate (101), and the middle section of the rotating plate (502) is hinged with the rotating seat (501); the left end and the right end of the rotating plate (502) are provided with annular cup sleeves (503), the water receiving cup (504) is clamped in the cup sleeves (503), and the water receiving cup (504) at the left end is aligned to the outlet of the drain pipe (604);
the device also comprises an extraction assembly (4), wherein the extraction assembly (4) comprises a piston cylinder (405) and a second water tank (406); a fourth support plate (105) is further connected to the left side of the right side plate (102) above the corresponding lever assembly (5), and a piston cylinder (405) and a second water tank (406) are arranged on the fourth support plate (105); a piston plate (404) which moves up and down is arranged in the piston cylinder (405), the top of the piston plate (404) is connected with a piston rod (402), and the piston rod (402) extends out of the piston cylinder (405) and is connected with a pressure plate (401); the top of the pressure plate (401) and the top of the piston cylinder (405) are also connected with a second spring (403); the bottom of the piston cylinder (405) is communicated with a second water tank (406) through a first pipe (407), and the first pipe (407) is provided with a one-way valve for controlling water to flow into the piston cylinder (405) from the second water tank (406); the bottom of the piston cylinder (405) is also connected with a second pipe (408), the bottom end of the second pipe (408) faces to the water receiving cup (504) on the right side, and the second pipe (408) is also provided with a one-way valve for controlling water to flow into the second pipe (408) from the piston cylinder (405);
the left end of the first rotating shaft (306) is connected with a first driving wheel (310), a second rotating shaft (313) is arranged below the first rotating shaft (306) in parallel, the right end of the second rotating shaft (313) is rotatably connected with the right side plate (102), a second driving wheel (312) is arranged at the left end of the second rotating shaft (313), and the first driving wheel (310) is in transmission connection with the second driving wheel (312) through a transmission belt (311); the second rotating shaft (313) is also provided with a cam (314), and the cam (314) is pressed on the top surface of the pressing plate (401); the bottom of the second support plate (203) is connected with a fifth support plate (309), and the left ends of the first rotating shaft (306) and the second rotating shaft (313) penetrate through and are rotatably connected with the fifth support plate (309).
2. A multi-functional teaching aid for teaching and demonstrating physics in high school according to claim 1, wherein a plurality of tie ears (3022) are arranged at intervals on the side wall of the rotating disc (302), and the pulling rope (209) is tied on one of the tie ears (3022).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010222048.2A CN111402687B (en) | 2020-03-26 | 2020-03-26 | A multi-functional teaching aid for high school physics teaching demonstration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010222048.2A CN111402687B (en) | 2020-03-26 | 2020-03-26 | A multi-functional teaching aid for high school physics teaching demonstration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111402687A CN111402687A (en) | 2020-07-10 |
| CN111402687B true CN111402687B (en) | 2022-12-23 |
Family
ID=71414014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010222048.2A Active CN111402687B (en) | 2020-03-26 | 2020-03-26 | A multi-functional teaching aid for high school physics teaching demonstration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111402687B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2260268A7 (en) * | 1974-02-06 | 1975-08-29 | Mettler Instrumente Ag | Knock down instructional balance - is built up from kit of parts in two forms to explain leverage problems |
| CN203659288U (en) * | 2014-01-27 | 2014-06-18 | 熊德永 | Mechanical integrated demonstrator |
| CN207799977U (en) * | 2017-11-09 | 2018-08-31 | 滨州学院 | A kind of physics Multifunctional teaching aid |
| CN108735053A (en) * | 2018-08-30 | 2018-11-02 | 河南牧业经济学院 | It is a kind of can Intersect teaching demonstration physical teaching aid and teaching method |
| CN109584687A (en) * | 2019-01-07 | 2019-04-05 | 路怡婷 | A kind of physics teaching ocular demonstration teaching aid |
| CN109637301A (en) * | 2019-02-22 | 2019-04-16 | 胡乐怡 | A kind of student's lever used for physics principle in-class experiment device |
| CN209357313U (en) * | 2018-02-10 | 2019-09-06 | 张文莉 | A kind of All-in-One physics teaching device |
-
2020
- 2020-03-26 CN CN202010222048.2A patent/CN111402687B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2260268A7 (en) * | 1974-02-06 | 1975-08-29 | Mettler Instrumente Ag | Knock down instructional balance - is built up from kit of parts in two forms to explain leverage problems |
| CN203659288U (en) * | 2014-01-27 | 2014-06-18 | 熊德永 | Mechanical integrated demonstrator |
| CN207799977U (en) * | 2017-11-09 | 2018-08-31 | 滨州学院 | A kind of physics Multifunctional teaching aid |
| CN209357313U (en) * | 2018-02-10 | 2019-09-06 | 张文莉 | A kind of All-in-One physics teaching device |
| CN108735053A (en) * | 2018-08-30 | 2018-11-02 | 河南牧业经济学院 | It is a kind of can Intersect teaching demonstration physical teaching aid and teaching method |
| CN109584687A (en) * | 2019-01-07 | 2019-04-05 | 路怡婷 | A kind of physics teaching ocular demonstration teaching aid |
| CN109637301A (en) * | 2019-02-22 | 2019-04-16 | 胡乐怡 | A kind of student's lever used for physics principle in-class experiment device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111402687A (en) | 2020-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113758754A (en) | A sewage draws equipment for water quality testing | |
| CN111402687B (en) | A multi-functional teaching aid for high school physics teaching demonstration | |
| CN206740526U (en) | Concrete pressure testing machine | |
| CN114778199B (en) | Marine geological environment exploration sampler and sampling method | |
| CN108949503B (en) | Gene detection device applied to biological medicine detection | |
| CN113820166A (en) | Soil restoration sampling soil preservation device and preservation method thereof | |
| CN211668836U (en) | Capsule medicine taking device for medicine inspection | |
| CN111912649A (en) | Portable soil sample collection box | |
| CN115683703A (en) | Geological survey is stabilizing mean for sampling device | |
| CN208664731U (en) | A kind of compass for math teaching | |
| CN113281493B (en) | Soil restoration detection device | |
| CN113155546A (en) | Sampling device and method for environmental monitoring | |
| CN106066265B (en) | Portable shearing hydrostatic sampler and the method being sampled using the sampler | |
| CN112124607A (en) | Unmanned aerial vehicle's suction tube is around pipe mechanism | |
| CN109686195A (en) | Apparatus for demonstrating is used in a kind of experiment of discrete type mathematical probabilities | |
| CN215591324U (en) | Can be according to receiving and releasing device is used in theoretical training of mathematics specialty of size classification picture | |
| CN217211914U (en) | Dynamic and static mechanics comprehensive test bed | |
| CN214847360U (en) | Magnetic field simulation equipment for college physics experiments | |
| CN219714980U (en) | Plastic caster bearing testing device | |
| CN210443029U (en) | Biological classroom sample display device of high school | |
| CN220124714U (en) | Middle section urine collection equipment that leakproofness is strong | |
| CN109473018A (en) | A kind of high school physics study apparatus for demonstrating | |
| CN117388010B (en) | Water sampling device based on unmanned aerial vehicle | |
| CN208765991U (en) | A kind of pharmacy experimental sample-taking device | |
| CN211303235U (en) | Sampling detection equipment for soil improvement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20221206 Address after: 343000 Yongji Road, Enjiang Town, Yongfeng County, Ji'an City, Jiangxi Province (No. 501, Unit 1, Building A, Disabled Persons' Federation Office Building) Applicant after: Jiangxi Mingheng Biotechnology Co.,Ltd. Address before: 242200 No. 29, meijiawan, SHANGUAN village, Taozhou Town, Guangde County, Xuancheng City, Anhui Province Applicant before: Wang Xuerong |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |