CN209254057U - A kind of javelin throwing test device - Google Patents
A kind of javelin throwing test device Download PDFInfo
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- CN209254057U CN209254057U CN201821262201.9U CN201821262201U CN209254057U CN 209254057 U CN209254057 U CN 209254057U CN 201821262201 U CN201821262201 U CN 201821262201U CN 209254057 U CN209254057 U CN 209254057U
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- javelin
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- elevator
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Abstract
The utility model provides a kind of javelin throwing test device, belongs to sports apparatus field.The javelin throwing test device includes sand basin and across the door type structure in sand basin one end；The door type structure includes frame and the throwing net being arranged on frame.Javelin throwing practice can be carried out indoors at any time using the utility model, and practice is no longer influenced by Changes in weather, and can acquire the data of the javelin during entire throwing, sportsman, for analyzing motion process, raising training effect.
Description
Technical field
The utility model belongs to sports apparatus field, and in particular to a kind of javelin throwing test device.
Background technique
The site area that current javelin throwing practice needs is very big, and generally within outdoor, therefore javelin throwing is practiced
Habit is influenced by weather, and can not acquire the various exercise datas of thrower and javelin during entire throw,
Angle of shot, accelerator and throwing position of sportsman etc. can not be just analyzed by these exercise datas.
In order to carry out javelin throwing practice indoors, and can acquire javelin, sportsman speed, acceleration,
The momentum intensity of pressure, pressure etc. data, and the measured data of each training session of elite is collected, it is badly in need of a kind of javelin throwing
Test device is thrown to solve these problems.
Utility model content
Utility model aims to solve above-mentioned problems existing in the prior art, provide a kind of javelin throwing test
Device can carry out javelin throwing practice indoors, and can acquire the number of the javelin during entire throwing, sportsman
According to for analyzing motion process, raising training effect.
The utility model is achieved through the following technical solutions:
A kind of javelin throwing test device, including sand basin and across the door type structure in sand basin one end；
The door type structure includes frame and the throwing net being arranged on frame.
The frame includes two side frames and upper beam, and two side frames are arranged in parallel, the upper end of two side frames respectively with it is upper
The both ends of crossbeam connect；
Elevator motor is installed on a side frame；
Elevator polished rod in parallel is installed below upper beam；
The output shaft of the elevator motor is connect with one end of elevator polished rod, and the other end of elevator polished rod is connected by bearing
On another side frame；
The upper end for throwing net is fixedly connected on elevator polished rod；When elevator motor drives elevator polished rod to rotate in the forward direction
When, it throws net and is wrapped on elevator polished rod, when elevator polished rod reversely rotates, throw net unfolding.
It is respectively equipped with multiple hooks from top to bottom on two side frames, after throwing net unfolding is good, will be thrown with hook
The edge for throwing the two sides of net tangles.
It is equipped with multiple high-speed cameras on said frame, is equipped with film type pressure on the multiple meshes for throwing net
Sensor.
Each side frame includes upright bar, bottom bar, two braces；
The lower end of the upright bar and the middle part of bottom bar connect, and vertical with bottom bar, while bottom bar spatially hangs down with crossbeam
Directly；
Two braces are located at the two sides of upright bar, and the upper end of two braces and the top of upright bar connect, lower end with
Bottom bar connection, forms triangular structure；
Preferably, a triangular structure is connected with below the upright bar, the plane where the triangular structure with
Plane where two braces is vertical.
Preferably, the side frame includes two parallel upright bars, bottom bar, two braces, and the lower end of two upright bars is equal
It is connect with the middle part of bottom bar, and vertical with bottom bar, while bottom bar is spatially vertical with crossbeam；
Multiple parallel and vertical with upright bar reinforcing ribs are equipped between two parallel upright bars；
The upper end of the brace of side is connect with the top of a upright bar, the upper end of the brace of the other side and another upright bar
Top connection, the lower end of two braces are connect with bottom bar, form triangular structure.
Idler wheel and pedestal block are mounted below two bottom bars；
The ball screw perpendicular to ground is equipped on each bottom bar, the nut and pedestal with ball screw cooperation
Block is fixedly connected；
When ball screw rotation when, drive nut move up and down, the pedestal block being fixedly connected with nut also rise with it or
Decline；
When pedestal block drops to minimum point, pedestal block and ground face contact, the idler wheel are not contacted with ground；
When pedestal block rises to highest point, pedestal block is not contacted with ground, the idler wheel and ground face contact.
Preferably, horizontal I-shaped support is equipped between the bottom of two side frames；
The I-shaped support includes intermediate lower beam, and is connected to the lower stringer at lower beam both ends, and two
Lower stringer is vertically arranged with lower beam, and is located in the same horizontal plane；
Two lower stringers are parallel, each descend stringer and are fixedly connected with the bottom bar of its ipsilateral side frame.
Compared with prior art, the utility model has the beneficial effects that using the utility model can at any time indoors into
The practice of row javelin throwing, practice are no longer influenced by Changes in weather, and can acquire the javelin during entire throwing, movement
The data of member improve training effect for analyzing motion process.
Detailed description of the invention
The main view of Fig. 1 the utility model javelin throwing test device
The left view of Fig. 2 the utility model javelin throwing test device
The perspective view of Fig. 3 the utility model javelin throwing test device
Lower support structure figure in Fig. 4 the utility model javelin throwing test device
The structure chart of the side frame of Fig. 5 the utility model javelin throwing test device.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
The utility model javelin throwing test device includes sand basin, door type structure, and door type structure is across one end in sand basin.
The door type structure is as shown in Figure 1, Figure 2, Figure 3 shows, including throws net 1, elevator polished rod 2, frame 3, elevator motor 4.The frame 3
Including two side frames and upper beam, two side frames are arranged in parallel, and the upper end of two side frames is connect with the both ends of upper beam respectively；Institute
It states elevator polished rod 2 to be mounted below upper beam, be arranged in parallel with upper beam, the elevator motor 4 is installed therein a side frame
On.The elevator motor is connect with elevator polished rod, drives the rotation of elevator polished rod.
The throwing net 1 is wrapped on elevator polished rod 2, when needing to train, starts elevator motor 2, will be thrown net and is put down
It is unfolded, when not needed, starts elevator motor 2, net volume will be thrown and risen.In order to fix throwing net, from upper on two side frames
It is respectively equipped with multiple hooks under, after throwing net unfolding is good, is tangled the edge for throwing net with hook.
In order to improve stability, each side frame includes upright bar, bottom bar, two braces, the lower end and bottom of the upright bar
The middle part of bar connects, and vertical with bottom bar, while bottom bar is spatially vertical with crossbeam；The upper end of two braces and upright bar
Top connection, lower end connect with bottom bar, formation triangular structure.A triangular structure is also connected with below upright bar,
Plane where the triangular structure is vertical with the plane where two braces.
In order to further enhance stability, the side frame includes two parallel upright bars, bottom bar, two braces, two institutes
The lower end for stating upright bar is connect with the middle part of bottom bar, and vertical with bottom bar, while bottom bar is spatially vertical with crossbeam, at two
Be equipped with multiple parallel reinforcing ribs (as shown in Figure 5) vertical with upright bar between parallel upright bar, the upper end of the brace of side and
The top connection of a piece upright bar, the upper end of the brace of the other side are connect with the top of another upright bar, and the lower end of two braces is equal
It is connect with bottom bar, forms triangular structure.In order to facilitate mobile door type structure, idler wheel 6 is mounted below two bottom bars
With pedestal block 8.Be respectively equipped with a vertical ball screw 7 at the both ends of each side frame, with ball screw cooperation nut with
Pedestal block is fixedly connected, and starting ball screw rotation, ball screw drives nut to move up and down, the pedestal being fixedly connected with nut
Block also rises with it or declines.When test, the bottom of pedestal block is located on ground 5, and ground 5 is left in the bottom of idler wheel, works as needs
When mobile, start ball screw, pedestal block is driven to move up, leaves ground 5, and the bottom of idler wheel 6 contacts ground, pushing rolling wheels 6
Mobile entire door type structure, after being moved to required position, by reversely rotating ball screw, nut drives the decline of pedestal block,
Ground is contacted, entire door type structure is propped up to come, and guarantee level, ground is left in the bottom of idler wheel.
Preferably, in order to increase the stability of entire door type structure, horizontal I-shaped branch is equipped between two side frames
Support as shown in figure 4, the I-shaped support includes intermediate lower beam, and is connected to the lower stringer at lower beam both ends,
Two lower stringers are vertically arranged with lower beam, and two lower stringers are parallel, and the bottom bar of each lower stringer and the side frame ipsilateral with it is solid
Fixed connection.
In order to acquire the data of sportsman and javelin, multiple high-speed cameras are equipped on the frame of the door type structure
Machine is equipped with membrane-type pressure sensors on the multiple meshes for throwing net.
The method tested using above-mentioned test device is as follows:
(1) door type structure is moved to one end of sand basin, starting ball screw rotation drives pedestal block to be decreased until idler wheel
Leave ground, pedestal block touches ground and supports entire door type structure；
(2) start elevator motor, net will be thrown and put down, after throwing net unfolding is good, hung the edge for throwing net with hook
Firmly；
(3) multiple light-inductive points are set on javelin, multiple light-inductive points are set on the joint of thrower；
(4) 9 axle acceleration sensors are set in the different parts of javelin, and momentum pressure change is set on the head of javelin
Sensor；
(5) during the entire throwing of thrower, data are acquired using the light-inductive point, sensor.
The operation of the step (5) includes:
The displacement of each light-inductive point is acquired using high-speed camera；
The acceleration of javelin in the whole process is acquired using 9 axle acceleration sensors of javelin different parts；
Utilize the momentum intensity of pressure of the momentum pressure change sensor acquisition javelin on javelin head when net is thrown in contact；
The pressure generated using online membrane-type pressure sensors acquisition javelin is thrown when net is thrown in contact.
After collecting these data using device described in the utility model, passed through using existing analysis method or algorithm
The position of membrane-type pressure sensors and collected acceleration, the momentum intensity of pressure, Pressure Analysis javelin add in human hand held
Different parts accelerated condition and javelin pass through movement in momentum intensity, the relationship of angle of different height insertion mesh when fast
When each light-inductive point point displacement and throw a javelin and accelerate to relationship after javelin is sold between speed, angle from people's rifle,
It obtains more suitably accelerating to run by analysis, draw arm mode and posture of selling, collected using utility model device excellent
The measured data of the elegant each training session of sportsman, to find the problem, adjusting training.
Above-mentioned technical proposal is a kind of embodiment of the utility model, for those skilled in the art,
On the basis of the utility model discloses principle, it is easy to make various types of improvement or deformation, be not limited solely to this reality
The structure described in novel above-mentioned specific embodiment, thus it is previously described only preferred, and it is not restrictive
Meaning.
Claims (8)
1. a kind of javelin throwing test device, it is characterised in that: the javelin throwing test device includes sand basin and across in sand
The door type structure of pond one end；
The door type structure includes frame and the throwing net being arranged on frame；
It is equipped with multiple high-speed cameras on said frame, is equipped with film type pressure on the multiple meshes for throwing net and senses
Device.
2. javelin throwing test device according to claim 1, it is characterised in that: the frame includes two side frames and upper
Crossbeam, two side frames are arranged in parallel, and the upper end of two side frames is connect with the both ends of upper beam respectively；
Elevator motor is installed on a side frame；
Elevator polished rod in parallel is installed below upper beam；
The output shaft of the elevator motor is connect with one end of elevator polished rod, and the other end of elevator polished rod is connected to separately by bearing
On one side frame；
The upper end for throwing net is fixedly connected on elevator polished rod；When elevator motor drives elevator polished rod to rotate in the forward direction, throw
It throws net to be wrapped on elevator polished rod, when elevator polished rod reversely rotates, throws net unfolding.
3. javelin throwing test device according to claim 2, it is characterised in that: on two side frames from top to bottom
Multiple hooks are respectively equipped with, after throwing net unfolding is good, are tangled the edge for throwing the two sides of net with hook.
4. javelin throwing test device according to claim 2, it is characterised in that: each side frame includes upright bar, bottom
Bar, two braces；
The lower end of the upright bar and the middle part of bottom bar connect, and vertical with bottom bar, while bottom bar is spatially vertical with crossbeam；
Two braces are located at the two sides of upright bar, and the upper end of two braces and the top of upright bar connect, lower end and bottom bar
Connection forms triangular structure.
5. javelin throwing test device according to claim 4, it is characterised in that: be connected with one below the upright bar
A triangular structure, the plane where the triangular structure are vertical with the plane where two braces.
6. javelin throwing test device according to claim 2, it is characterised in that: the side frame includes two parallel vertical
Bar, bottom bar, two braces, the lower end of two upright bars are connect with the middle part of bottom bar, and vertical with bottom bar, at the same bottom bar with
Crossbeam is spatially vertical；
Multiple parallel and vertical with upright bar reinforcing ribs are equipped between two parallel upright bars；
The upper end of the brace of side is connect with the top of a upright bar, the top of the upper end of the brace of the other side and another upright bar
Connection, the lower end of two braces are connect with bottom bar, form triangular structure.
7. javelin throwing test device according to claim 6, it is characterised in that: pacify in the lower section of two bottom bars
Equipped with idler wheel and pedestal block；
The ball screw perpendicular to ground is equipped on each bottom bar, it is solid with the nut and pedestal block of ball screw cooperation
Fixed connection；
When ball screw rotation when, drive nut move up and down, the pedestal block being fixedly connected with nut also rise with it or under
Drop；
When pedestal block drops to minimum point, pedestal block and ground face contact, the idler wheel are not contacted with ground；
When pedestal block rises to highest point, pedestal block is not contacted with ground, the idler wheel and ground face contact.
8. according to any javelin throwing test device of claim 2-7, it is characterised in that: the bottom of two side frames it
Between be equipped with horizontal I-shaped support；
The I-shaped support includes intermediate lower beam, and is connected to the lower stringer at lower beam both ends, is indulged under two
Beam is vertically arranged with lower beam, and is located in the same horizontal plane；
Two lower stringers are parallel, each descend stringer and are fixedly connected with the bottom bar of its ipsilateral side frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821262201.9U CN209254057U (en) | 2018-08-07 | 2018-08-07 | A kind of javelin throwing test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821262201.9U CN209254057U (en) | 2018-08-07 | 2018-08-07 | A kind of javelin throwing test device |
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| Publication Number | Publication Date |
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| CN209254057U true CN209254057U (en) | 2019-08-16 |
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ID=67557554
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821262201.9U Active CN209254057U (en) | 2018-08-07 | 2018-08-07 | A kind of javelin throwing test device |
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| Country | Link |
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| CN (1) | CN209254057U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109432734A (en) * | 2018-08-07 | 2019-03-08 | 北京体育大学 | A kind of javelin throwing test device and method |
-
2018
- 2018-08-07 CN CN201821262201.9U patent/CN209254057U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109432734A (en) * | 2018-08-07 | 2019-03-08 | 北京体育大学 | A kind of javelin throwing test device and method |
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