CN206179337U - Free falling body experiment device - Google Patents
Free falling body experiment device Download PDFInfo
- Publication number
- CN206179337U CN206179337U CN201621144321.XU CN201621144321U CN206179337U CN 206179337 U CN206179337 U CN 206179337U CN 201621144321 U CN201621144321 U CN 201621144321U CN 206179337 U CN206179337 U CN 206179337U
- Authority
- CN
- China
- Prior art keywords
- free fall
- guide post
- hole
- connecting rod
- paper tape
- 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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- Devices For Use In Laboratory Experiments (AREA)
Abstract
The utility model discloses a free falling body experiment device, including clamping device, paper tape, ticker -timer, heavy object, support frame and cushion, the support frame include bracing piece and base, the base on be equipped with the cushion, clamping device include pull rod, guide bar, connecting rod, supporting rod and L type shelves pole, the guide bar in the middle of be equipped with through -hole I, guide bar downside symmetry be equipped with two supporting rods, the supporting rod pass through the connecting rod and be connected with the pull rod, the pull rod on be equipped with through -hole II, L type shelves pole can insert among the through -hole II, clamping device one side be fixed with the horizontal pole, horizontal pole perpendicular to guide bar pass through connecting piece I and bracing piece and link to each other. The utility model discloses with the mode that clamping device replaces holding the paper tape, convenient operation, reduction experimental error, the heavy object is avoided causing the damage to ground on dropping on the cushion.
Description
Technical field
This utility model is related to Physical Experiment field, more particularly to a kind of free fall experimental device.
Background technology
Experiment with falling objects is experiment common in physics, is all by bracing frame when current student carries out experiment with falling objects
Table side is placed on, by hand-held paper tape, weight and paper tape fall after loosing one's grip, and dotted timer leaves the side of ink dot on paper tape
Method.This method needs artificial operation, and fatigue is easily caused Jing after many experiments, and hand-held paper tape easily causes experimental error；And
Weight-drop easily causes ground damage to ground.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of free fall experimental device, with folder
Hold the mode that device replaces hand-held paper tape, easy to operate, reduction experimental error；Weight falls on cushion, it is to avoid ground is made
Into damage.
For achieving the above object, this utility model adopts following technical proposals：
A kind of free fall experimental device, including clamping device, paper tape, dotted timer, weight, bracing frame and elasticity
Pad, described bracing frame includes support bar and base, and described base is provided with cushion；Described clamping device includes drawing
Bar, guide post, connecting rod, supporting rod and L-type lever, are provided with through hole I in the middle of described guide post, described guide post downside is symmetrical
Two supporting rods are provided with, described supporting rod is connected by connecting rod with pull bar, described pull bar passes through through hole I and stretches out guide post
Certain length；Described pull bar is provided with through hole II, and described L-type lever can be inserted in through hole II；Described clamping device
Side is fixed with cross bar, and described cross bar is connected by connector I perpendicular to guide post with support bar；Described dotted timer
It is connected with support bar by connector II, described paper tape connects weight by clip.
Described guide post bottom is provided with guide groove, and described supporting rod can slide in guide groove.
Described supporting rod slides into suitable position in guide groove and clamps paper tape.
Described support bar is provided with screw thread.
Described connector I's and connector II is internally threaded.
Described connecting rod is with pull bar by chain connection.
Described connecting rod is symmetrical arranged with regard to pull bar, and described connecting rod is even number.
The beneficial effects of the utility model：
(1) slip by supporting rod in guide post in guide groove determines the position of clamping paper tape, is fixed with L-type baffle plate,
The structural clamp is stablized；
(2) cushion is set on base, and weight falls on cushion, it is to avoid ground is caused to damage；
(3) it is easy to operate, even if carrying out that the fatigue that experiment does not result in experimenter yet is repeated several times.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is structural representation when clamping device of the present utility model is clamped；
Fig. 3 is structural representation when clamping device of the present utility model unclamps；
Wherein, 1- clamping devices, 2- paper tapes, 3- dotted timers, 4- clips, 5- weights, 6- cushions, 7- cross bars, 8-
Connector I, 9- support bar, 10- connector II, 11- bases, 12-L type levers, 13- pull bars, 14- guide posts, 15- connecting rods, 16-
Supporting rod.
Specific embodiment
This utility model is described in detail below in conjunction with the accompanying drawings：
As shown in Figure 1-Figure 3, a kind of free fall experimental device, including clamping device 1, paper tape 2, dotted timer 3, weight
Thing 5, bracing frame and cushion 6, described bracing frame includes support bar 9 and base 11, and described base 11 is provided with cushion
6；Described clamping device 1 includes pull bar 13, guide post 14, connecting rod 15, supporting rod 16 and L-type lever 12, described guide post
Through hole I is provided with the middle of 14, the described downside of guide post 14 is arranged with two supporting rods 16, and described supporting rod 16 passes through connecting rod
15 are connected with pull bar 13, and described pull bar 13 passes through through hole I and stretches out the certain length of guide post 14；Set on described pull bar 13
There is through hole II, described L-type lever 12 can be inserted in through hole II；The described side of clamping device 1 is fixed with cross bar 7, described
Cross bar 7 is connected by connector I8 perpendicular to guide post 14 with support bar 9；Described dotted timer 3 passes through connector II10
It is connected with support bar 9, described paper tape 2 connects weight 5 by clip 4.
The described bottom of guide post 14 is provided with guide groove, and described supporting rod 16 can slide in guide groove.
Described supporting rod 16 slides into suitable position in guide groove and clamps paper tape 2.
Described support bar 9 is provided with screw thread.
Described connector I8's and connector II10 is internally threaded.
Described connecting rod 15 is with pull bar 13 by chain connection.
Described connecting rod 15 is symmetrical arranged with regard to pull bar 13, and described connecting rod 15 is even number.
A kind of operating process of free fall experimental device is：
Step one：Paper tape 2 is placed in clamping device 1, is pressed from both sides on paper tape 2 by adjusting position of the supporting rod 16 in guide groove
Tightly, paper tape 2 is not fallen out in the through hole II that L-type lever 12 is inserted pull bar 13；
Step 2：Clamping device 1 is set to be located at suitable position, adjusting connector with paper tape 2 by adjusting connector I8
II10 makes the position of dotted timer 3 moderate, and paper tape 2 is fixed on dotted timer 3；
Step 3：Clip 4 hangs weight 5, is clipped in the lower end of paper tape 2；
Step 4：Extract L-type lever 12 out, weight 5 falls；
Step 5：Process the ink dot on paper tape 2.
It is not new to this practicality although the above-mentioned accompanying drawing that combines is described to specific embodiment of the present utility model
The restriction of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Various modifications or deform still in protection model of the present utility model that field technique personnel make by need not paying creative work
Within enclosing.
Claims (7)
1. a kind of free fall experimental device, it is characterised in that including clamping device, paper tape, dotted timer, weight, support
Frame and cushion, described bracing frame includes support bar and base, and described base is provided with cushion；Described clamping device
Including pull bar, guide post, connecting rod, supporting rod and L-type lever, through hole I is provided with the middle of described guide post, under described guide post
Side is arranged with two supporting rods, and described supporting rod is connected by connecting rod with pull bar, and described pull bar passes through through hole I and stretches out
The certain length of guide post；Described pull bar is provided with through hole II, and described L-type lever can be inserted in through hole II；Described folder
Hold device side and be fixed with cross bar, described cross bar is connected by connector I perpendicular to guide post with support bar；Described gets ready
Timer is connected by connector II with support bar, and described paper tape connects weight by clip.
2. a kind of free fall experimental device as claimed in claim 1, it is characterised in that described guide post bottom is provided with leads
Groove, described supporting rod can slide in guide groove.
3. a kind of free fall experimental device as claimed in claim 2, it is characterised in that described supporting rod is sliding in guide groove
Move suitable position and clamp paper tape.
4. a kind of free fall experimental device as claimed in claim 1, it is characterised in that described support bar is provided with spiral shell
Stricture of vagina.
5. a kind of free fall experimental device as claimed in claim 1, it is characterised in that described connector I and connector
II's is internally threaded.
6. a kind of free fall experimental device as claimed in claim 1, it is characterised in that described connecting rod is with pull bar by hinge
Connection.
7. a kind of free fall experimental device as claimed in claim 1, it is characterised in that described connecting rod is symmetrical with regard to pull bar
Arrange, described connecting rod is even number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621144321.XU CN206179337U (en) | 2016-10-21 | 2016-10-21 | Free falling body experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621144321.XU CN206179337U (en) | 2016-10-21 | 2016-10-21 | Free falling body experiment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206179337U true CN206179337U (en) | 2017-05-17 |
Family
ID=58680360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621144321.XU Expired - Fee Related CN206179337U (en) | 2016-10-21 | 2016-10-21 | Free falling body experiment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206179337U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109345921A (en) * | 2018-10-18 | 2019-02-15 | 华北理工大学 | A kind of simplified teaching mode of mechanics |
-
2016
- 2016-10-21 CN CN201621144321.XU patent/CN206179337U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109345921A (en) * | 2018-10-18 | 2019-02-15 | 华北理工大学 | A kind of simplified teaching mode of mechanics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170517 Termination date: 20171021 |