CN112289165A

CN112289165A - Physical transmission demonstration device

Info

Publication number: CN112289165A
Application number: CN202011242564.8A
Authority: CN
Inventors: 路晓静; 王晓允
Original assignee: Xuchang University
Current assignee: Xuchang University
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-01-29
Anticipated expiration: 2040-11-09
Also published as: CN112289165B

Abstract

The invention discloses a physical transmission demonstration device which comprises a device body, wherein the device body comprises a bottom plate, an anti-slip mat is fixed on the lower side of the bottom plate, a fixing piece is arranged on the left side of the bottom plate, a first rotating rod is arranged on the fixing piece, a fixing piece is fixed on the left end of the first rotating rod, a handle is arranged on the left side of the fixing piece, a fifth bevel gear is fixed on the right side of the first rotating rod, a fixing plate is arranged on the right side of the fifth bevel gear, a sliding groove is formed in the fixing plate, a moving rod is arranged in the sliding groove, a supporting rod is fixed on the upper portion of the moving rod through a positioning pin, when transmission demonstration is needed, the handle is rotated to drive a second rotating rod to rotate so that the supporting rod is unfolded or contracted, the.

Description

Physical transmission demonstration device

Technical Field

The invention relates to the technical field of physics-assisted learning, in particular to a physics transmission demonstration device.

Background

Very important part among the physics discipline, it is relatively wide to relate to, often demonstrate through a lot of experiments in the teaching of reality, let the student understand deeply, for the ease of teaching, and make the student understand more easily, generally adopt corresponding presentation device to demonstrate, but current physics transmission presentation device or structure is too simple, play not fine demonstration effect, or need the motor to drive, there is certain potential safety hazard, the student of being not convenient for operates, some presentation devices need carry out many times adjustment troublesome poeration, the practicality is poor, therefore it is good to be necessary to design a demonstration effect, easy operation's presentation device.

Disclosure of Invention

The invention aims to provide a physical transmission demonstration device to solve the problems in the background technology, and to achieve the purpose, the invention provides the following technical scheme: the utility model provides a physics transmission presentation device, includes the device body, its characterized in that: the device body comprises a bottom plate, an anti-slip mat is fixed on the lower side of the bottom plate, a fixing plate is arranged on the left side of the bottom plate, a first rotating rod is arranged on the fixing plate, the left end of the first rotating rod is fixedly provided with the fixing plate, the left side of the fixing plate is provided with a handle, the right side of the first rotating rod is fixedly provided with a fifth bevel gear, the fifth bevel gear is meshed with a fourth bevel gear, the right side of the fourth bevel gear is fixedly provided with a third rotating rod, the third rotating rod penetrates through the fixing frame, the right end of the third rotating rod is fixedly provided with a sixth bevel gear, the upper part of the sixth bevel gear is meshed with a seventh bevel gear, the lower part of the sixth bevel gear is meshed with a ninth bevel gear, the right side of the seventh bevel gear is meshed with an eighth bevel gear, the eighth bevel gear is fixedly provided on the third rotating rod, the fixed third bevel gear of third dwang right-hand member, third bevel gear and the meshing of first bevel gear, first bevel gear fixes on the second dwang, the fixed second bevel gear of second dwang lower extreme, fixed plate is passed on second dwang upper portion, set up the screw thread on the second dwang, the screw thread overcoat has the sleeve, cup joint branch through the pivot outside the sleeve, the branch upper end sets up on the fixed plate through the locating pin, the fixed plate is fixed on the carriage release lever, the carriage release lever lower extreme sets up in the spout, the spout is fixed on the fixed plate.

Preferably, the upper part of the seventh bevel gear is sleeved on a first fixing rod, and the upper end of the first fixing rod is fixed on a top plate of the fixing frame.

Preferably, the lower part of the ninth bevel gear is sleeved on a second fixed rod, and the lower end of the second fixed rod is fixed on the fixed frame bottom plate.

Preferably, the first fixing column and the second fixing column are both fixed on the moving frame.

Preferably, the seventh bevel gear and the ninth bevel gear have different numbers of teeth.

Advantageous effects

Compared with the prior art, the demonstration device has the advantages that when transmission demonstration is needed, the first rotating rod is driven to rotate by rotating the handle, the first rotating rod drives the fifth bevel gear to rotate, the fifth bevel gear drives the second rotating rod to rotate through transmission, the second rotating rod rotates to enable the sleeve to ascend, the sleeve moves upwards to enable the supporting rod to expand, the supporting rod expands to enable the moving rod to expand outwards in the sliding groove, when the influence of the number of gear teeth on the rotating speed needs to be demonstrated, the moving frame is pulled outwards to move the third moving rod downwards, then the moving frame is pushed back, the moving frame is enabled to clamp the third rotating rod and the first fixing column simultaneously, the speed of the rotating handle is kept unchanged, the change of the rotating speed of the gear under different tooth numbers can be clearly demonstrated, the operation is simple, the demonstration effect is good, a motor does not need to be used, the safety is good, and the demonstration for students.

Drawings

FIG. 1 is a view showing the overall structure of the apparatus;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a top view of the device as a whole;

FIG. 4 is an enlarged view at B in FIG. 3;

fig. 5 is a right view of the fixing frame.

Reference numerals in the figures

1. A device body; 2. a non-slip mat; 3. a base plate; 4. a handle; 5. a rotating wheel; 6. a fixing sheet; 7. a first rotating lever; 8. a chute; 9. a fixing plate; 10. a strut; 11. a second rotating lever; 12. a sleeve; 13. positioning pins; 14. a fixing plate; 15. a travel bar; 16. a first bevel gear; 17. a second bevel gear; 18. a third bevel gear; 19. a third rotating rod; 20. a third rotating rod; 21. a fourth bevel gear; 22. a fifth bevel gear; 23. a fixing frame; 24. a sixth bevel gear; 25. a first fixing lever; 26. a seventh bevel gear; 27. an eighth bevel gear; 28. moving the frame; 29. a first fixed column; 30. a ninth bevel gear; 31. a second fixing bar; 32. a spring; 33. grooving; 34. and a second fixing column.

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 embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the invention provides a physical transmission demonstration device, which aims to solve the problems in the background technology and provides the following technical scheme for achieving the purpose: the utility model provides a physics transmission presentation device, includes device body 1, its characterized in that: the device body 1 comprises a bottom plate 3, an anti-skid pad 2 is fixed on the lower side of the bottom plate 3, a fixing plate 6 is arranged on the left side of the bottom plate 3, a first rotating rod 7 is arranged on the fixing plate 6, the fixing plate 6 is fixed on the left end of the first rotating rod 7, a handle 4 is arranged on the left side of the fixing plate 6, a fifth bevel gear 22 is fixed on the right side of the first rotating rod 7, the fifth bevel gear 22 is meshed with a fourth bevel gear 21, a third rotating rod 20 is fixed on the right side of the fourth bevel gear 21, the third rotating rod 20 penetrates through a fixing frame 23, a sixth bevel gear 24 is fixed on the right end of the third rotating rod 20, the upper part of the sixth bevel gear 24 is meshed with a seventh bevel gear 26, the upper part of the seventh bevel gear 26 is sleeved on a first fixing rod 25, the upper end of the first fixing rod 25 is fixed on the top plate of the fixing frame 23, the seventh bevel gear 26 and the ninth bevel gear 30 have different tooth numbers, the right side of the seventh bevel gear 26 is engaged with the eighth bevel gear 27, the eighth bevel gear 27 is fixed on the third rotating rod 19, the third rotating rod 19 passes through the slot 33, the third rotating rod 19 is fixed with the spring 32, one end of the spring 32 far away from the third rotating rod 19 is fixed on the moving frame 23, the rear side of the moving frame 23 is provided with the second fixed column 34, the lower part of the second fixed column 34 is provided with the first fixed column 29, the first fixed column 34 and the second fixed column 34 are both fixed on the moving frame 23, the right end of the third rotating rod 19 is fixed with the third bevel gear 18, the third bevel gear 18 is engaged with the first bevel gear 16, the first bevel gear 16 is fixed on the second rotating rod 11, the lower end of the second rotating rod 11 is fixed with the second bevel gear 17, the upper part of the second rotating rod 11 passes through the fixed plate 9, the, sleeve 12 cup joints branch 10 through the pivot outward, and branch 10 upper end passes through locating pin 13 and sets up on fixed plate 14, and fixed plate 14 is fixed on

carriage release lever

15, and 15 lower extremes of carriage release lever set up in spout 8, and spout 8 is fixed on fixed plate 9, and fixed plate 9 passes through the connecting plate to be fixed on bottom plate 3.

When transmission demonstration is needed, the handle 4 is rotated to drive the first rotating rod 7 to rotate, the first rotating rod 7 drives the fifth bevel gear 22 to rotate, the fifth bevel gear 22 drives the fourth bevel gear 21 to rotate, the fourth bevel gear 21 drives the seventh bevel gear 26 and the ninth bevel gear 30 to rotate through the third rotating rod 19, the seventh bevel gear 26 drives the eighth bevel gear 27 to rotate, the eighth bevel gear 27 drives the third rotating rod 19 to rotate, the third rotating rod 19 drives the third bevel gear 18 to rotate, the third bevel gear 18 drives the first bevel gear 16 to rotate, the first bevel gear 16 drives the second rotating rod 11 to rotate, the second rotating rod 11 rotates to lift the sleeve 12, the sleeve 12 moves upwards to expand the supporting rod 10, the supporting rod 10 expands to expand the moving rod 15 outwards in the chute 8, when the influence of the number of gear teeth on the rotating speed needs to be demonstrated, the moving frame 28 is pulled outwards, move the third movable rod 19 downwards, then push back the movable frame 28, make the movable frame 28 simultaneously chucking third dwang 19 and first fixed column 19, eighth bevel gear 27 and the meshing of ninth bevel gear 30, third bevel gear 18 and the meshing of second bevel gear 17, keep rotating handle 4's speed unchangeable, can clearly demonstrate under the different number of teeth, the change of gear revolution, easy operation, it is effectual to demonstrate, need not use the motor, the security is good, conveniently demonstrate the student.

While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims

1. The utility model provides a physics transmission presentation device, includes the device body, its characterized in that: the device body comprises a bottom plate, an anti-slip mat is fixed on the lower side of the bottom plate, a fixing plate is arranged on the left side of the bottom plate, a first rotating rod is arranged on the fixing plate, the left end of the first rotating rod is fixedly provided with the fixing plate, the left side of the fixing plate is provided with a handle, the right side of the first rotating rod is fixedly provided with a fifth bevel gear, the fifth bevel gear is meshed with a fourth bevel gear, the right side of the fourth bevel gear is fixedly provided with a third rotating rod, the third rotating rod penetrates through the fixing frame, the right end of the third rotating rod is fixedly provided with a sixth bevel gear, the upper part of the sixth bevel gear is meshed with a seventh bevel gear, the lower part of the sixth bevel gear is meshed with a ninth bevel gear, the right side of the seventh bevel gear is meshed with an eighth bevel gear, the eighth bevel gear is fixedly provided on the third rotating rod, the fixed third bevel gear of third dwang right-hand member, third bevel gear and the meshing of first bevel gear, first bevel gear fixes on the second dwang, the fixed second bevel gear of second dwang lower extreme, fixed plate is passed on second dwang upper portion, set up the screw thread on the second dwang, the screw thread overcoat has the sleeve, cup joint branch through the pivot outside the sleeve, the branch upper end sets up on the fixed plate through the locating pin, the fixed plate is fixed on the carriage release lever, the carriage release lever lower extreme sets up in the spout, the spout is fixed on the fixed plate.

2. A physical transmission demonstration apparatus according to claim 1 wherein: the upper part of the seventh bevel gear is sleeved on a first fixing rod, and the upper end of the first fixing rod is fixed on a top plate of the fixing frame.

3. A physical transmission demonstration apparatus according to claim 1 wherein: and the lower part of the ninth bevel gear is sleeved on a second fixed rod, and the lower end of the second fixed rod is fixed on the fixed frame bottom plate.

4. A physical transmission demonstration apparatus according to claim 1 wherein: first fixed column and second fixed column are all fixed on removing the frame.

5. A physical transmission demonstration apparatus according to claim 1 wherein: and the seventh bevel gear and the ninth bevel gear have different tooth numbers.