CN203825898U - Linear catapult used for parabolic tester - Google Patents
Linear catapult used for parabolic tester Download PDFInfo
- Publication number
- CN203825898U CN203825898U CN201420264121.2U CN201420264121U CN203825898U CN 203825898 U CN203825898 U CN 203825898U CN 201420264121 U CN201420264121 U CN 201420264121U CN 203825898 U CN203825898 U CN 203825898U
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- housing
- frizzen
- spring
- push rod
- wall
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Abstract
The utility model relates to a teaching appliance and especially relates to a linear catapult used for a parabolic tester. The catapult comprises a circular-pipe-shaped shell and a push rod slidingly installed in the shell. An outer wall of the shell is provided with an annular convex rib. An end portion of the push rod is provided with a disc loading end cover whose diameter is greater than an internal diameter of the shell. A spring is connected between the end cover and the convex rib. An outer wall of the push rod is provided with a plurality of annular grooves. An inner wall of the shell is provided with an annular clamping groove. A clamp is installed in the clamping groove. A position on the shell, which corresponds to a combination position of two snap rings, is provided with a through hole. A trigger rod is inserted into the through hole. The catapult is simple in structure, is convenient in usage and is high in accuracy. Linearity of an initial speed can be maintained. An angle of a projectile object and the initial speed can be set accurately and can be repeated for several times. The catapult is interesting and a learning interest can be increased.
Description
Technical field
The utility model relates to a kind of teaching aid, specifically a kind of linear ejector for para-curve test instrument.
Background technology
Middle school physical curriculum is in the parabolical definition of explanation and parabolic path, to explain the parabolical generation of gesture and feature to student, further in education activities, also to calculate parabolical track by the initial velocity of object of which movement and angle gauge, or calculate initial velocity and the angle of object of which movement according to parabolical track.In order to demonstrate parabolical track, the most direct method is exactly impelling weight the track of observing its whereabouts, in order accurately to repeat impelling action, require angle and the initial velocity of impelling object accurately to set, rubber is large through the method error such as launching, angle and initial velocity are all difficult to accurate repetition, and error when experiment is larger, are unfavorable for student's understanding.
Summary of the invention
The purpose of this utility model is to provide a kind of strong, high linear ejector for para-curve test instrument of accuracy simple in structure, easy to use, interesting, can accurately repeat angle and the initial velocity of impelling object, be conducive to improve the accuracy of experiment, reduce error, improve the interest of Students ' Learning.
The utility model for the technical scheme that technical solution problem adopts is:
Described in the utility model for the linear ejector of para-curve test instrument comprise circular tube shaped housing, be slidably mounted on the push rod in housing, between described push rod and housing, be provided with spring, the outer wall of described housing is provided with annular protruding rib, the end of described push rod is provided with the dish dress end cap that diameter is greater than housing internal diameter, and described spring is connected between end cap and fin; The outer wall of described push rod is provided with multiple annular grooves, the inwall of described housing is provided with annular snap-ring groove, in described snap-ring groove, clip is installed, described clip comprises and is set with the hinge of torsion spring and is arranged on two semicircle circumferential clasps on hinge, the two ends of described torsion spring act on respectively on two snap rings, on housing, be provided with through hole corresponding to two snap ring junctions, in described through hole, be fitted with frizzen, the inner of described frizzen is nose cone, between the outer end of frizzen and the outer wall of housing, is provided with triggering spring.
The outer end of described frizzen is provided with trigger button, triggers spring housing and is contained on frizzen, and the one end of triggering spring is fixedly connected on trigger button, triggers the another one end of spring and is fixedly connected on the outer wall of housing.
The inwall of described housing is provided with the circular pit that diameter is greater than through hole, and described circular pit arranges with through hole is concentric, between the inner of described frizzen and outer end, is provided with annular boss, and described annular boss is arranged in circular pit.
On the outer wall of housing, be provided with inserted link, described inserted link and frizzen coaxially arrange.
Adopt after technique scheme, this ejector is simple in structure, easy to use, accuracy is high, can keep the rectilinearity of initial velocity, and the angle of its impelling object and initial velocity can accurately be set and can repeatedly repeat, interesting strong, be conducive to improve the interest of study.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the A-A cut-open view of Fig. 1.
Fig. 3 is the structure for amplifying schematic diagram of clip.
Embodiment
As shown in Figure 1, linear ejector for para-curve test instrument described in the utility model comprise circular tube shaped housing 1, be slidably mounted on the push rod 2 in housing 1, between described push rod 2 and housing 1, be provided with spring 3, when use, the objects such as the heavy ball of impelling are placed in housing 1, the thrust of utilizing push rod 2 to move is launched away heavy ball, due to the guide effect of housing 1, heavy ball can keep rectilinear motion before launching away, is convenient to control initially launch angle.
As shown in Figure 1 and Figure 2, the outer wall of described housing 1 is provided with annular protruding rib 4, the end of described push rod 2 is provided with the dish dress end cap 5 that diameter is greater than housing 1 internal diameter, described spring 3 is connected between end cap 5 and fin 4, for keeping stress balance, spring 3 has two at least, is evenly distributed on the periphery of housing 1; The outer wall of described push rod 2 is provided with multiple annular grooves 6, and the inwall of described housing 1 is provided with annular snap-ring groove 7, in described snap-ring groove 7, clip is installed.The range of movement of clip, between groove 6 and snap-ring groove 7, in the time that clip is positioned between the two, can, by the locking position of housing 1 and push rod 2, in the time that clip returns in snap-ring groove 7 completely, discharge push rod 2.
As shown in Figure 3, described clip 8 comprises and is set with the hinge 10 of torsion spring 9 and is arranged on two semicircle circumferential clasps 11 on hinge 10, and the two ends of described torsion spring 9 act on respectively on two snap rings 11, and two snap ring 11 inward collapsibles are held tightly on push rod 2.On housing 1, be provided with through hole corresponding to two snap ring 11 junctions, in described through hole, be fitted with frizzen 12, the inner of described frizzen 12 is nose cone, between the outer wall of the outer end of frizzen 12 and housing 1, be provided with and trigger spring 13, frizzen 12 can be pressed, and the nose cone of frizzen 12 the inners injects between two snap rings 11, and two snap rings 11 are strutted, clip returns in snap-ring groove 7 completely, and push rod 2 is discharged; Unclamp frizzen 12, the nose cone of frizzen 12 the inners returns to original position, departs from snap ring 11, and under the effect of torsion spring 9, two snap ring 11 inward collapsibles are held tightly on push rod 2.
As an embodiment of the present utility model, the outer end of described frizzen 12 is provided with trigger button, trigger spring 13 and be sleeved on frizzen 12, the one end of triggering spring 13 is fixedly connected on trigger button, triggers the another one end of spring 13 and is fixedly connected on the outer wall of housing 1.Now, the effect of existing promotion frizzen 12 returns of triggering spring 13 can prevent that again frizzen 12 from departing from through hole and dropping out.
Another embodiment of the present utility model, the inwall of described housing 1 is provided with the circular pit that diameter is greater than through hole, described circular pit arranges with through hole is concentric, is provided with annular boss 15 between the inner of described frizzen 12 and outer end, and described annular boss 15 is arranged in circular pit.Now, the annular boss 15 that is arranged in circular pit can prevent that frizzen 12 from dropping out from through hole.
In addition, be provided with inserted link 16 on the outer wall of housing 1, described inserted link 16 coaxially arranges with frizzen 12.When inserted link 16 is arranged in base as web member, can select easily the sensing of debuging whole housing 1, thereby adjust the angle of impelling; Meanwhile, inserted link 16 coaxially arranges and can bear the pressure of pressing frizzen 12, excessive inserted link 16 or the base of fractureing of avoiding exerting oneself with frizzen 12.
When use, push down frizzen 12, push rod 2 is pulled back into certain position, unclamp frizzen 12, now clip sticks in a nearest groove 6, and push rod 2 is locked; Then the objects such as heavy ball are put in housing 1, be positioned at the front end of push rod 2, adjust the angle of housing 1, press frizzen 12, the inner of frizzen 12 is injected between two snap rings 11, and two snap rings 11 are strutted, and clip returns in snap-ring groove 7 completely, push rod 2 is released and moves rapidly under spring action, and heavy ball is ejected.
Claims (4)
1. for the linear ejector of para-curve test instrument, comprise circular tube shaped housing (1), be slidably mounted on the push rod (2) in housing (1), between described push rod (2) and housing (1), be provided with spring (3), it is characterized in that: the outer wall of described housing (1) is provided with annular protruding rib (4), the end of described push rod (2) is provided with the dish dress end cap (5) that diameter is greater than housing (1) internal diameter, and described spring (3) is connected between end cap (5) and fin (4), the outer wall of described push rod (2) is provided with multiple annular grooves (6), the inwall of described housing (1) is provided with annular snap-ring groove (7), described snap-ring groove is provided with clip in (7), described clip (8) comprises and is set with the hinge (10) of torsion spring (9) and is arranged on two the semicircle circumferential clasps (11) on hinge (10), the two ends of described torsion spring (9) act on respectively on two snap rings (11), above be provided with through hole corresponding to two snap rings (11) junction at housing (1), in described through hole, be fitted with frizzen (12), the inner of described frizzen (12) is nose cone, between the outer wall of the outer end of frizzen (12) and housing (1), be provided with and trigger spring (13).
2. the linear ejector for para-curve test instrument according to claim 1, it is characterized in that: the outer end of described frizzen (12) is provided with trigger button, triggering spring (13) is sleeved on frizzen (12), the one end of triggering spring (13) is fixedly connected on trigger button, triggers the another one end of spring (13) and is fixedly connected on the outer wall of housing (1).
3. the linear ejector for para-curve test instrument according to claim 1, it is characterized in that: the inwall of described housing (1) is provided with the circular pit that diameter is greater than through hole, described circular pit arranges with through hole is concentric, between the inner of described frizzen (12) and outer end, be provided with annular boss (15), described annular boss (15) is arranged in circular pit.
4. according to the linear ejector for para-curve test instrument described in claim 1-3 any one, it is characterized in that: on the outer wall of housing (1), be provided with inserted link (16), described inserted link (16) coaxially arranges with frizzen (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420264121.2U CN203825898U (en) | 2014-05-22 | 2014-05-22 | Linear catapult used for parabolic tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420264121.2U CN203825898U (en) | 2014-05-22 | 2014-05-22 | Linear catapult used for parabolic tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203825898U true CN203825898U (en) | 2014-09-10 |
Family
ID=51481372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420264121.2U Expired - Fee Related CN203825898U (en) | 2014-05-22 | 2014-05-22 | Linear catapult used for parabolic tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203825898U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109003515A (en) * | 2018-08-07 | 2018-12-14 | 吴畅 | A kind of demonstration instrument for hydraulic pressure reflecting experimental |
-
2014
- 2014-05-22 CN CN201420264121.2U patent/CN203825898U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109003515A (en) * | 2018-08-07 | 2018-12-14 | 吴畅 | A kind of demonstration instrument for hydraulic pressure reflecting experimental |
| CN109003515B (en) * | 2018-08-07 | 2020-10-09 | 吴畅 | Demonstration instrument for water pressure reflection experiment |
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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: 20140910 Termination date: 20150522 |
|
| EXPY | Termination of patent right or utility model |