CN205247769U - Machinery auto -lock demonstration teaching aid - Google Patents
Machinery auto -lock demonstration teaching aid Download PDFInfo
- Publication number
- CN205247769U CN205247769U CN201521094230.5U CN201521094230U CN205247769U CN 205247769 U CN205247769 U CN 205247769U CN 201521094230 U CN201521094230 U CN 201521094230U CN 205247769 U CN205247769 U CN 205247769U
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- CN
- China
- Prior art keywords
- ratchet
- installing plate
- driving gear
- connecting rod
- teaching aid
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a machinery auto -lock demonstration teaching aid, including the mounting panel, the rotatable cam that is equipped with of mounting panel, cam top be equipped with with cam terminal surface complex gyro wheel, be equipped with the connecting rod on the gyro wheel, the small end is equipped with gliding slider from top to bottom, the mounting panel is equipped with the connecting rod at the rotatable driving gear that is equipped with in the top of slider between and the slider, connecting rod one end and driving gear rotatable coupling, its other end and slider rotatable coupling, the mounting panel is equipped with rather than complex driven gear in that one side of driving gear is rotatable, the last ratchet that is equipped with of driven gear, and the fixed pulley that is equipped with on the ratchet, pulley and ratchet are evenly concentric with driven gear, the winding has the rope on the pulley, and the rope end is connected with soon, be equipped with on the mounting panel with ratchet complex pawl. This machinery auto -lock demonstration teaching aid simple structure can popularize and apply.
Description
Technical field
The utility model is involved in technical field of teaching instruments, in particular to a kind of mechanical self-latching demonstration teaching aid.
Background technology
In mechanical subject, self-lock mechanism and mechanical efficiency are one of emphasis of Students ' Learning, all performances to some extent in the related Sections of the course such as " Machine Design " and " theory of mechanics ", the simple graph that what student was simple pass through on textbook and teacher's oral understanding self-lock mechanism and the mechanism relation between its mechanical efficiency in self-locking and not self-locking situation that is difficult to visual pattern of telling about.
Utility model content
The purpose of this utility model is to provide a kind of mechanical self-latching demonstration teaching aid, to solve the deficiencies in the prior art.
For realizing the utility model object, the technical scheme of employing is:
A kind of mechanical self-latching demonstration teaching aid, comprises installing plate, it is characterized in that, described installing plate is rotatably provided with cam, and cam top is provided with the roller coordinating with cam face, and roller is provided with connecting rod, and small end is provided with the slide block that can slide up and down; Described installing plate is rotatably provided with driving gear above slide block, between driving gear and slide block, is provided with connecting rod, and connecting rod one end and driving gear are rotatably connected, and its other end and slide block are rotatably connected; Described installing plate is rotatably provided with in a side of driving gear the driven gear being mated, and the ratchet that driven gear is provided with is fixed with pulley on ratchet, and pulley and ratchet are evenly concentric with driven gear; On described pulley, be wound with rope, it is fast that rope end is connected with lifting; Described installing plate is provided with the ratchet coordinating with ratchet.
Further, described installing plate is provided with guide pad, offers chute on guide pad, and chute and slide block are connected.
Further, described ratchet is rotatably connected by torsion spring and installing plate.
The beneficial effects of the utility model are,
The utility model can be demonstrated the motion of cam, the transmission campaign of gear and the motion of self-locking, facilitates student to understand its principle, improves learning efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the mechanical self-latching demonstration teaching aid that provides of the utility model.
Detailed description of the invention
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
Fig. 1 is shown mechanical self-latching demonstration teaching aid that the utility model provides, comprises that installing plate 1, lifting are fast 2, rope 3, driven gear 4, ratchet 5, ratchet 6, pulley 7, driving gear 8, connecting rod 9, guide pad 10, slide block 11, connecting rod 12, roller 13 and cam 14. Described installing plate 1 is rotatably provided with cam 14, and cam 14 tops are provided with the roller 13 coordinating with cam 14 end faces, and roller 13 is provided with connecting rod 12, and connecting rod 12 upper ends are provided with the slide block 11 that can slide up and down; Described installing plate 1 is rotatably provided with driving gear 8 above slide block 11, between driving gear 8 and slide block 11, is provided with connecting rod 9, and one end of connecting rod 9 and driving gear 8 are rotatably connected, and its other end and slide block 11 are rotatably connected; Described installing plate 1 is rotatably provided with the driven gear 4 being mated in a side of driving gear 8, the ratchet 6 that driven gear 4 is provided with, is fixed with pulley 7 on ratchet 6, and pulley 7 and ratchet 6 are evenly concentric with driven gear 8; On described pulley 7, be wound with rope 3, rope 3 ends are connected with lifting fast 2; Described installing plate 1 is provided with the ratchet 5 coordinating with ratchet 6.
Installing plate 1 is provided with guide pad 10, on guide pad 10, offers chute, and chute and slide block 11 are connected. Ratchet 5 is rotatably connected by torsion spring and installing plate 1.
Operation principle: by rotating cam 14, roller 13 is rolled along cam 14 edges, thereby band movable slider 11 moves up and down, and can demonstrate visually the motion principle of cam along chute. Because slide block 11 is connected by rotating connecting rod 12 with driving gear 8, move up and down by slide block 11, can realize driving gear 8 and rotate, driving gear 8 drives driven gear 4 to rotate backward, and image has shown the transmission motion principle of gear. Driven gear 4 drives ratchet 6 and pulley 7 to rotate, the rope 3 that makes to be wrapped on pulley 7 drives elevator 2 to move up, when elevator 2 rises to certain position, cam 14 is stopped operating, ratchet 6 coordinates with ratchet 5, avoid the gravity effect due to elevator 2, pulley 7 is rotated backward, reach the object of self-locking.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations. All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. a mechanical self-latching demonstration teaching aid, comprises installing plate, it is characterized in that, described installing plate is rotatably provided with cam, and cam top is provided with the roller coordinating with cam face, and roller is provided with connecting rod, and small end is provided with the slide block that can slide up and down; Described installing plate is rotatably provided with driving gear above slide block, between driving gear and slide block, is provided with connecting rod, and connecting rod one end and driving gear are rotatably connected, and its other end and slide block are rotatably connected; Described installing plate is rotatably provided with in a side of driving gear the driven gear being mated, and the ratchet that driven gear is provided with is fixed with pulley on ratchet, and pulley and ratchet are evenly concentric with driven gear; On described pulley, be wound with rope, it is fast that rope end is connected with lifting; Described installing plate is provided with the ratchet coordinating with ratchet.
2. mechanical self-latching demonstration teaching aid according to claim 1, is characterized in that: described installing plate is provided with guide pad, on guide pad, offer chute, chute and slide block are connected.
3. mechanical self-latching demonstration teaching aid according to claim 1, is characterized in that: described ratchet is rotatably connected by torsion spring and installing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521094230.5U CN205247769U (en) | 2015-12-26 | 2015-12-26 | Machinery auto -lock demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521094230.5U CN205247769U (en) | 2015-12-26 | 2015-12-26 | Machinery auto -lock demonstration teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205247769U true CN205247769U (en) | 2016-05-18 |
Family
ID=55946851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521094230.5U Expired - Fee Related CN205247769U (en) | 2015-12-26 | 2015-12-26 | Machinery auto -lock demonstration teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205247769U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448181A (en) * | 2015-12-26 | 2016-03-30 | 四川科技职业学院 | Mechanical self-locking demonstration teaching aid |
| CN111331498A (en) * | 2020-02-28 | 2020-06-26 | 汪锋 | Pipe wall cleaning and polishing device |
-
2015
- 2015-12-26 CN CN201521094230.5U patent/CN205247769U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448181A (en) * | 2015-12-26 | 2016-03-30 | 四川科技职业学院 | Mechanical self-locking demonstration teaching aid |
| CN111331498A (en) * | 2020-02-28 | 2020-06-26 | 汪锋 | Pipe wall cleaning and polishing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20161226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |