CN205690974U - The catapult of variable torque - Google Patents
The catapult of variable torque Download PDFInfo
- Publication number
- CN205690974U CN205690974U CN201620279517.3U CN201620279517U CN205690974U CN 205690974 U CN205690974 U CN 205690974U CN 201620279517 U CN201620279517 U CN 201620279517U CN 205690974 U CN205690974 U CN 205690974U
- Authority
- CN
- China
- Prior art keywords
- hinge
- rubber band
- catapult
- support
- armed lever
- 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
This utility model relates to a kind of sports goods, the catapult of a kind of variable torque.Including handle and the bow body that is arranged on handle upper end, it is provided with rubber band on described bow body, the centre of described rubber band is provided with bullet pocket, the upper end of described bow body is provided with support, with longitudinally disposed hinge on described support, described hinge being provided with connecting lever, described connecting lever has two fixing connection armed levers at an acute angle, one of them armed lever is connected on the support in hinge front by elastic stretching part, and another armed lever connects rubber band.This catapult uses the moment of connecting lever regulation rubber band, and compact conformation, handling are strong.
Description
Technical field
This utility model relates to a kind of sports goods, the catapult of a kind of variable torque.
Background technology
Catapult is a kind of conventional physical culture, game articles, and common catapult is made up of the bow body of a Y shape, the two of bow body
End fastens rubber band, and the centre of rubber band is with the bullet pocket of parcel bullet.The power of catapult depends on elastic force and the length of rubber band
Degree, and the relation of the elastic force of rubber band and tensile elongation linearly direct ratio, being stretched to extreme position when, the arm of people
By maximum pull, easily produce shake, be unfavorable for fine sight；Limited further, since opened up by human body arm, rubber band
Length can not indefinite extension.
Summary of the invention
The purpose of this utility model is to provide the bullet that a kind of elastic force is big, launch accuracy variable torque high, easy to use
Bow.
This utility model be the technical scheme is that by solving technical problem
The catapult of variable torque described in the utility model includes handle and is arranged on the bow body of handle upper end, described bow body
On be provided with rubber band, the centre of described rubber band is provided with bullet pocket, and the upper end of described bow body is provided with support, on described support
With longitudinally disposed hinge, described hinge being provided with connecting lever, described connecting lever has two fixing connection armed levers at an acute angle,
Wherein the second armed lever is connected on the support in hinge front by elastic stretching part, and the first armed lever connects rubber band.
Described connecting lever includes sleeve pipe, the first armed lever being arranged on sleeve upper end that slip cap is contained on hinge and is arranged on
Second armed lever of its lower end, described first armed lever and second armed lever position on sleeve pipe have difference in height.
Described connecting lever is fixedly connected on hinge, and hinge is rotatably installed on support, described first armed lever and second
Armed lever position on hinge has difference in height.
It is fixedly installed sight on the outer wall of described support.
Owing to have employed said structure, this catapult uses the moment of connecting lever regulation rubber band, compact conformation, handling
Can be strong.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of this utility model.
Fig. 2 is the structure for amplifying schematic diagram of holder part.
Fig. 3 is the structure for amplifying schematic diagram of another embodiment holder part.
Fig. 4 is the plan structure schematic diagram of Fig. 1 embodiment.
Detailed description of the invention
As shown in Figure 1 and Figure 2, the catapult of variable torque described in the utility model includes handle 1 and is arranged on handle
The bow body 2 of end, described bow body 2 is provided with rubber band 3, and the centre of described rubber band 3 is provided with bullet pocket 4, described bow body 2 upper
End is provided with support 5, with longitudinally disposed hinge 6 on described support 5, described hinge 6 is provided with connecting lever 7, described connecting lever 7
Having two fixing connection armed levers at an acute angle, wherein the second armed lever 73 is connected to hinge 6 front by elastic stretching part 11
On support 5, the first armed lever 72 connects rubber band 3.This elastic stretching part 11 can use extension spring as shown in Figure 1 and Figure 2, it is also possible to
Use elastic rubber band.The when that rubber band 3 stretching backward, traction connecting lever 7 rotates, tensile elasticity tensioning member 11 simultaneously.Connecting lever 7 revolves
Change tensile elasticity tensioning member 11 and the deflection angle of rubber band 3 front end when of turning, the most just change deflection torque simultaneously
And the enhanced stretch resistance of rubber band 3.Rubber band can be suitably increased by the length and angle rationally arranging 7 liang of armed levers of connecting lever
The resistance of the resistance at 3 stretching initial stages, the most suitably reduction stretching later stage, alleviates arm stress, beneficially fine sight.
As in figure 2 it is shown, described connecting lever 7 includes sleeve pipe 71 that slip cap is contained on hinge 6, is arranged on the of sleeve pipe 71 upper end
One armed lever 72 and be arranged on the second armed lever 73 of sleeve pipe 71 lower end, described first armed lever 72 and the second armed lever 73 are on sleeve pipe 71
Position there is difference in height.The when that connecting lever 7 so can being avoided to rotate, two armed levers interfere.
As it is shown on figure 3, as another embodiment of the present utility model, described connecting lever 7 is fixedly connected on hinge 6, hinge
The two ends of axle 6 are rotatably installed on support 5 by bearing or sliding sleeve, and described first armed lever 72 and the second armed lever 73 are in hinge
Position on axle 6 has difference in height.
It addition, as in figure 2 it is shown, be fixedly installed sight 9 on the outer wall of described support 5.This sight 9 can use electricity
Sub-laser sight, it would however also be possible to employ machinery foresight formula sight.
Claims (4)
1. the catapult of variable torque, including handle (1) and the bow body (2) that is arranged on handle upper end, described bow body (2) is upper to be arranged
Rubber band (3), the centre of described rubber band (3) is had to be provided with bullet pocket (4), it is characterised in that: the upper end of described bow body (2) is arranged
There is support (5), with longitudinally disposed hinge (6) on described support (5), described hinge (6) is provided with connecting lever (7), described
Connecting lever (7) has two fixing connection armed levers at an acute angle, and wherein the second armed lever (73) is connected to by elastic stretching part (11)
On the support (5) in hinge (6) front, the first armed lever (72) connects rubber band (3).
The catapult of variable torque the most according to claim 1, it is characterised in that: described connecting lever (7) includes that slip cap is contained in
Sleeve pipe (71) on hinge (6), it is arranged on first armed lever (72) of sleeve pipe (71) upper end and is arranged on sleeve pipe (71) lower end
Second armed lever (73), described first armed lever (72) and the second armed lever (73) position on sleeve pipe (71) have difference in height.
The catapult of variable torque the most according to claim 1, it is characterised in that: described connecting lever (7) is fixedly connected on hinge
(6) on, hinge (6) is rotatably installed on support (5), and described first armed lever (72) and the second armed lever (73) are in hinge (6)
On position there is difference in height.
4. according to the catapult of the variable torque described in claim 1-3 any one, it is characterised in that: outside described support (5)
Sight (9) it is fixedly installed on wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620279517.3U CN205690974U (en) | 2016-04-07 | 2016-04-07 | The catapult of variable torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620279517.3U CN205690974U (en) | 2016-04-07 | 2016-04-07 | The catapult of variable torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205690974U true CN205690974U (en) | 2016-11-16 |
Family
ID=57263813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620279517.3U Expired - Fee Related CN205690974U (en) | 2016-04-07 | 2016-04-07 | The catapult of variable torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205690974U (en) |
-
2016
- 2016-04-07 CN CN201620279517.3U patent/CN205690974U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161116 Termination date: 20170407 |