CN206259086U - A kind of novel free fall experimental provision - Google Patents
A kind of novel free fall experimental provision Download PDFInfo
- Publication number
- CN206259086U CN206259086U CN201621144395.3U CN201621144395U CN206259086U CN 206259086 U CN206259086 U CN 206259086U CN 201621144395 U CN201621144395 U CN 201621144395U CN 206259086 U CN206259086 U CN 206259086U
- Authority
- CN
- China
- Prior art keywords
- pull bar
- hole
- guide post
- free fall
- experimental provision
- 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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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of novel free fall experimental provision, including base, clamping device, paper tape, dotted timer, weight, screw rod, support bar and buffer unit, and described screw rod is screwed in support bar；Described base is provided with buffer unit, described clamping device includes pull bar, guide post, connecting rod, supporting rod and L-type lever, through hole I is provided with the middle of described guide post, described guide post downside is arranged with two supporting rods, 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 into through hole II；Described screw rod is provided with through hole III, in the laterally inserted through hole III of described pull bar.The utility model replaces hand to take the mode of paper tape, easy to operate, reduction experimental error with clamping device；Weight falls on cushion, it is to avoid ground is caused to damage.
Description
Technical field
The utility model is related to Physical Experiment field, more particularly to a kind of novel free fall experimental provision.
Background technology
Not cried " freely falling body " by any resistance, the object for only landing under gravity.Experiment with falling objects is thing
Common experiment in reason, is all that support frame is placed on into table side when current student carries out experiment with falling objects, and paper tape is taken by hand,
Weight and paper tape fall after loosing one's grip, the method that dotted timer leaves ink dot on paper tape.This method needs artificial operation,
Fatigue is easily caused after many experiments, hand easily causes experimental error by paper tape；And weight-drop is to ground, easily cause ground
Face is damaged.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of novel free fall experimental provision,
Hand is replaced to take the mode of paper tape, easy to operate, reduction experimental error with clamping device；Weight falls on buffer unit, it is to avoid right
Cause to damage in ground.
To achieve the above object, the utility model uses following technical proposals：
A kind of novel free fall experimental provision, including base, clamping device, paper tape, dotted timer, weight, screw rod,
Support bar and buffer unit, described support bar are hollow structure and are internally threaded that described screw rod is screwed in support bar；
Described base is provided with buffer unit, and described buffer unit includes spring and supporting plate.
Described clamping device includes pull bar, guide post, connecting rod, supporting rod and L-type lever, is set in the middle of described guide post
There is through hole I, described guide post downside is arranged with two supporting rods, and described supporting rod is connected by connecting rod with pull bar, institute
The pull bar stated is through through hole I and stretches out the certain length of guide post；Described pull bar is provided with through hole II, described L-type lever
In pluggable through hole II；Described screw rod is provided with through hole III, in the laterally inserted through hole III of described pull bar；Described gets ready
Timer is connected by connector with support bar, and described paper tape connects weight by clip.
Described guide post bottom is provided with guide groove, and described supporting rod can be slided in guide groove.
Described supporting rod slides into suitable position in guide groove and clamps paper tape.
Described connector is internally threaded.
Described connecting rod is with pull bar by chain connection.
Described connecting rod is symmetrical arranged on pull bar, and described connecting rod is even number.
The beneficial effects of the utility model：
(1) slip by supporting rod in guide groove in guide post determines the position of clamping paper tape, is fixed with L-type baffle plate,
Structural clamp stabilization；
(2) buffer unit is set on base, and weight falls on buffer unit, 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.
Brief 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- buffer units, 7-L types shelves
Bar, 8- screw rods, 9- connectors, 10- support bars, 11- bases, 12- pull bars, 13- guide posts, 14- connecting rods, 15- supporting rods.
Specific embodiment
The utility model is described in detail below in conjunction with the accompanying drawings：
As shown in Figure 1-Figure 3, a kind of novel free fall experimental provision, including clamping device 1, paper tape 2, dotted timer
3rd, weight 5, screw rod 8, support bar 10 and buffer unit 6, described support bar 10 are hollow structure and are internally threaded, described
Screw rod 8 screw in support bar 10 in；Described base 11 is provided with buffer unit 6, and described buffer unit 6 includes spring and branch
Fagging.
Described clamping device 1 includes pull bar 12, guide post 13, connecting rod 14, supporting rod 15 and L-type lever 7, and described leads
To through hole I is provided with the middle of bar 13, the described downside of guide post 13 is arranged with two supporting rods 15, and described supporting rod 15 passes through
Connecting rod 14 is connected with pull bar 12, and described pull bar 12 passes through through hole I and stretches out the certain length of guide post 13；Described pull bar 12
Through hole II is provided with, described L-type lever 7 can be inserted into through hole II；Described screw rod 8 is provided with through hole III, described pull bar
In 12 laterally inserted through hole III；Described dotted timer 3 is connected by connector 9 with support bar 10, and described paper tape 2 leads to
Cross the connection weight 5 of clip 4.
The described bottom of guide post 13 is provided with guide groove, and described supporting rod 15 can be slided in guide groove.
Described supporting rod 15 slides into suitable position in guide groove and clamps paper tape 2.
Described connector 9 is internally threaded.
Described connecting rod 14 is with pull bar 12 by chain connection.
Described connecting rod 14 is symmetrical arranged on pull bar 12, and described connecting rod 14 is even number.
A kind of operating process of novel free fall experimental provision is：
Step one：By pull bar 12 through screw rod 8 through hole III in, paper tape 2 is placed in clamping device 1, by adjust press from both sides
Hold position of the bar 15 in guide groove to clamp paper tape 2, paper tape 2 is not fallen in the through hole II that L-type lever 7 is inserted pull bar 12
Fall；
Step 2：By length of the adjusting screw rod 8 of rotary screw 8 in support bar 10, make clamping device 1 and 2, paper tape
In suitable position, adjusting connector 9 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 7 out, touch pull bar 12, weight 5 falls；
Step 5：Ink dot on treatment paper tape 2.
It is not new to this practicality although above-mentioned be described with reference to accompanying drawing to specific embodiment of the present utility model
The limitation 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 (6)
1. a kind of novel free fall experimental provision, it is characterised in that including base, clamping device, paper tape, dotted timer,
Weight, screw rod, support bar and buffer unit, described support bar are hollow structure and are internally threaded that described screw rod revolves
In entering support bar；Described base is provided with buffer unit, and described buffer unit includes spring and supporting plate；
Described clamping device includes pull bar, guide post, connecting rod, supporting rod and L-type lever, is provided with logical in the middle of described guide post
Hole I, described guide post downside is arranged with two supporting rods, and described supporting rod is connected by connecting rod with pull bar, described
Pull bar is 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 entering through hole II；Described screw rod is provided with through hole III, in the laterally inserted through hole III of described pull bar；Described gets timing ready
Device is connected by connector with support bar, and described paper tape connects weight by clip.
2. a kind of novel free fall experimental provision as claimed in claim 1, it is characterised in that described guide post bottom sets
There is guide groove, described supporting rod can be slided in guide groove.
3. a kind of novel free fall experimental provision as claimed in claim 2, it is characterised in that described supporting rod is in guide groove
Inside slide into suitable position and clamp paper tape.
4. a kind of novel free fall experimental provision as claimed in claim 1, it is characterised in that the inside of described connector
It is provided with screw thread.
5. a kind of novel free fall experimental provision as claimed in claim 1, it is characterised in that described connecting rod and pull bar by
Chain connection.
6. a kind of novel free fall experimental provision as claimed in claim 1, it is characterised in that described connecting rod is on pull bar
It is symmetrical arranged, described connecting rod is even number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621144395.3U CN206259086U (en) | 2016-10-21 | 2016-10-21 | A kind of novel free fall experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621144395.3U CN206259086U (en) | 2016-10-21 | 2016-10-21 | A kind of novel free fall experimental provision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206259086U true CN206259086U (en) | 2017-06-16 |
Family
ID=59024106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621144395.3U Expired - Fee Related CN206259086U (en) | 2016-10-21 | 2016-10-21 | A kind of novel free fall experimental provision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206259086U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107808570A (en) * | 2017-11-23 | 2018-03-16 | 吴子敬 | A kind of physics teaching exhibiting device |
-
2016
- 2016-10-21 CN CN201621144395.3U patent/CN206259086U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107808570A (en) * | 2017-11-23 | 2018-03-16 | 吴子敬 | A kind of physics teaching exhibiting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170616 Termination date: 20181021 |