CN203443872U - Rebound performance detector for motion surface layer - Google Patents
Rebound performance detector for motion surface layer Download PDFInfo
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- CN203443872U CN203443872U CN201320266188.5U CN201320266188U CN203443872U CN 203443872 U CN203443872 U CN 203443872U CN 201320266188 U CN201320266188 U CN 201320266188U CN 203443872 U CN203443872 U CN 203443872U
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Abstract
The utility model provides a rebound performance detector for a motion surface layer. The rebound performance detector is characterized in that a base is connected with the lower part of a vertical height scale; a bracket is connected with the upper part of the height scale; a height adjusting device is arranged on the height scale and connected with the bracket; a ball hook is hinged with one end of the bracket; a pulley is arranged on the bracket; a pull rope is connected with a tightening sheet; the ball hook is sleeved with the tightening piece through the pulley; the ball hook is used for clamping a ball; the pull rope can be tightened or released to control the ball hook to clamp or release the ball; an infrared probe and a slave computer are mounted in the base; the slave computer detects and computes time difference data of the ball dropping to the motion surface layer, and sends the data to a handset held by a tester; the handset receives, processes and displays the data. The rebound performance detector is mainly used for measuring the rebound performance of an athletic field to the ball, and can also be used for measuring the rebound performance of other fields.
Description
Technical field
The utility model provides a kind of motion surface layer ballistic properties detector, particularly a kind ofly by spheroid, rebound and highly measure the instrument of motion surface layer ballistic properties, be mainly used in measuring athletic ground in the face of the bounce-back ability of ball, also can be used for the measurement of other ground ballistic properties.
Background technology
The bounce-back ability of the ball of athletic ground timber floor is one of the major function of the athletic ground timber floor of Germany's (DIN) industrial standard 18032 part iis regulations, is the indispensable part of athletic ground timber floor standard detection item.The GB/T20239-2006 < < physical culture of inspection and quarantine general bureau of country in September, 2006 issue is with intactly having quoted bounce-back rate function and the detection method of ball in DIN standard in wood floors > > 6.2.5.
Its detection method is described below:
(1) detect principle: the standard basketball of utilization is measured respectively the bounce-back height of basketball on wood floors and firm ground, calculate the bounce-back rate of ball.
(2) testing tool parameter: the shelf that is 2.2m with the height of scale.
(3) a, by the artificial basketball lower edge of lifting of basketball apart from ground floor 1.8m place.
The bounce-back that b, basketball aeration quantity be take on solid mattess is highly as 1.3m ± 25mm is as the criterion.
C, respectively in solid mattess and detection faces, measure the bounce-back height of ball, basketball lower edge, apart from the distance of ground floor, is accurate to 5mm.
D, each check point carry out 5 times to be measured, and also can increase as required detection number of times.General direct optics or the acoustics acquisition scheme of adopting of the data acquisition approach of ball bounce-back in testing process.
(4) detected value calculates: the bounce-back rate Br of ball calculates by formula, with number percent, represents, is accurate to 1%:
Br=h/h
1in * 100% formula:
The bounce-back rate of Br-ball, %;
H
1-ball is at the bounce-back height of firm ground, and unit is millimeter (mm).
H-ball is detecting ground bounce-back height, and unit is millimeter (mm).
The test result of each test point is the arithmetic mean of 5 test results, is accurate to 1%.
Detail requirement is not made to measuring the support of ball height of drop in spheroid rebound function by the testing agency of german standard din approval, to measuring the method for ball bounce-back height, does not make detail requirement yet.
Defect in current detection method:
1, in testing process, need artificially basketball to be promoted to requirement height, and need manpower to control basketball, can not eliminate the impact of human factor.
2, the direct optically detecting scheme of the general employing of data acquisition approach in testing process, can not eliminate the deviation of bringing in naked eyes identification.
3, in testing process, adopt direct acoustics scheme, can not eliminate the error that neighbourhood noise is brought.
4, fall of ball adopts manual mode of operation, can not avoid the friction force of palm to basketball in dispose procedure.
5, the height of basketball releasing means is fixed, and there is no jacking gear, can not guarantee like this stability of installing in use for some time, altitude datum that can not assurance device.
Chinese patent application 200710011577.2 discloses a kind of " ball rebound height measurer ", the described altimeter of this patented claim only provides in a kind of test process the ball rebound height measurer without interference from human factor, capable of regulating fall of ball height, bounce-back rate or bounce-back height measurement method are described, can only measure auxiliary machinery as bounce-back rate, can not be directly used in the bounce-back rate of measuring athletic ground ground floor.
Utility model content
The purpose of this utility model is to provide a kind of motion surface layer ballistic properties detector, there is test process without there is no other external force impact, capable of regulating fall of ball height in interference from human factor, spheroid free-falling process, without naked eyes identification deviation, without advantages such as environment noise errors, also can measure motion surface layer bounce-back rate and detect motion surface layer elasticity whether meet standard, overcome the deficiencies in the prior art.
The purpose of this utility model is achieved in that a kind of motion surface layer ballistic properties detector, it is characterized in that: the elevation ruler that comprises vertical setting, elevation ruler bottom is connected to base, on base, be embedded with infrared probe, elevation ruler upper end socket arrangement for adjusting height, arrangement for adjusting height is connected with support, the support other end is hinged with ball hook, support is provided with pulley, stay cord is connected with the tight bundle sheet being enclosed within on ball hook by pulley, ball hook is used for clamping spheroid, by straining or loosening stay cord and control ball hook clamping spheroid or discharge spheroid; In test process, unclamp stay cord, tight bundle sheet moves down and discharges ball hook, the football kiss the earth again of doing to upspring after freely falling body kiss the earth, the mistiming data that the infrared probe of installing in base and slave computer gather twice football kiss the earth, extrapolate athletic ground bounce-back height, and then calculate bounce-back rate, and data are sent on the hand-held set in test personnel hand, reception, processing and the demonstration of data by hand-held set, completed.
The purpose of this utility model can also realize like this: on described elevation ruler, have scale mark, chi is high is set to 2 meters, and base is the square of 1 meter of the length of side, and elevation ruler and base are fixedly linked by bolt arrangement.
Described ball hook is claw type structure, is hinged on support, and on ball hook, cover has tight bundle sheet, tightly restraints sheet upper end and is connected with stay cord, the pulley that stay cord is provided with by support, when stay cord is strained, tightly restraints on sheet and moves, the arcuate structure of ball hook can firmly be firmly grasped spheroid, and when stay cord unclamps, ball hook is decontroled spheroid; Described spheroid is the football of standard pressure.
Described slave computer is comprised of infrared probe testing circuit, mission controller and wireless launcher; Before and after being embedded in the infrared probe detection spheroid on base, fall for twice the motion surface layer mistiming, infrared probe testing circuit is transferred to mission controller by the signal detecting, mission controller calculates corresponding mistiming acquisition motion surface layer bounce-back rate, then by wireless launcher, sends the data to the hand-held set in testing staff's hand;
Described hand-held set is comprised of radio receiver, reception controller and LCD liquid crystal display; Radio receiver receives after the bounce-back rate data that slave computer sends, and by receiving after controller is processed, shows bounce-back rate and show whether motion surface layer bounce-back rate meets standard simultaneously in LCD liquid crystal display.
The utlity model has following advantage and useful effect:
1, the utility model integrates electric controling assembly and physical construction assembly, simple in structure, can assembly and disassembly, and after assembling, whole specification is about 1m * 1m * 2.2m, can be placed in the packing case that specification is 0.3m * 0.3m * 1.2m after dismounting, easy to carry.
2, the utility model is with low cost, and CPU adopts 8 single-chip microcomputers, and infrared probe and wireless transmitter cost are all lower, are conducive to control cost.
3, the utility model is simple to operate, by sensor wireless transfer function, has realized the upper and lower machine separation function of data acquisition and data analysis.
4, the utility model precision is high, and ball bounce-back height measuring accuracy can reach 0.1mm, meets motion surface layer ballistic properties test request completely.
5, the utility model is anti-interference, has overcome the noise problem that adopts acoustic timing device to bring, and has also improved the interference free performance (test environment that wind speed is less than 2m/s requires down) to wind speed.
6, the utility model friendly interface, hand-held set has automatic Memory function and is furnished with LCD liquid crystal, facilitates staff to check data.
7, the utility model favorable expandability, can meet by the configuration of different model product the detection demand of different detected objects.
8, integrated circuit of the present utility model is simple and practical, and power savings is very good, and experiment shows, the average working current of slave computer and hand-held set is 80 milliamperes of left and right, and the lithium battery of 1000 milliamperes is full of electric system and can works 10 hours.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the utility model infrared probe mounting structure and principle schematic.
Fig. 3 is operational flowchart of the present utility model.
Fig. 4 is slave computer circuit structure block diagram of the present utility model.
Fig. 5 is hand-held set circuit structure block diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, describe embodiment of the present utility model in detail.In figure, parts label is: base 1, infrared probe 2, elevation ruler 3, arrangement for adjusting height 4, stay cord 5, pulley 6, support 7, tightly restraint sheet 8, ball hook 9.
As shown in Figure 1, a kind of motion surface layer ballistic properties detector, it is characterized in that: the elevation ruler 3 that comprises vertical setting, elevation ruler 3 bottoms are connected to base 1, on base 1, be embedded with infrared probe 2, elevation ruler 3 upper end socket arrangement for adjusting height 4, arrangement for adjusting height 4 is connected with support 7, support 7 other ends are hinged with ball hook 9, support 7 is provided with pulley 6, stay cord 5 is connected with the tight bundle sheet 8 being enclosed within on ball hook 9 by pulley 6, and ball hook 9 is for clamping spheroid, by straining or loosening stay cord 5 and control ball hook 9 clamping spheroids or discharge spheroid; In test process, unclamp stay cord 5, tight bundle sheet 8 moves down and discharges ball hook 9, the football kiss the earth again of doing to upspring after freely falling body kiss the earth, the infrared probe 2 of base 1 interior installation and slave computer gather the mistiming data of twice football kiss the earth, extrapolate athletic ground bounce-back height, and then calculate bounce-back rate, and data are sent on the hand-held set in test personnel hand, reception, processing and the demonstration of data by hand-held set, completed.
On described elevation ruler 3, have scale mark, chi is high is set to 2 meters, and base 1 is the square of 1 meter of the length of side, and elevation ruler 3 is fixedly linked by bolt arrangement with base 1.
Described ball hook 9 is claw type structure, be hinged on support 7, on ball hook 9, cover has tight bundle sheet 8, tight bundle sheet 8 upper ends are connected with stay cord 5, and the pulley 6 that stay cord 5 is provided with by support 7, when stay cord 5 tension, on tight bundle sheet 8, move, the arcuate structure of ball hook 9 can firmly be firmly grasped spheroid, and when stay cord 5 unclamps, ball hook 9 is decontroled spheroid; Described spheroid is the football of standard pressure.
Described slave computer is comprised of infrared probe testing circuit, mission controller and wireless launcher; Before and after being embedded in the infrared probe 2 detection spheroids on base 1, fall for twice the motion surface layer mistiming, infrared probe testing circuit is transferred to mission controller by the signal detecting, mission controller calculates corresponding mistiming acquisition motion surface layer bounce-back rate, then by wireless launcher, sends the data to the hand-held set in testing staff's hand;
Described hand-held set is comprised of radio receiver, reception controller and LCD liquid crystal display; Radio receiver receives after the bounce-back rate data that slave computer sends, and by receiving after controller is processed, shows bounce-back rate and show whether motion surface layer bounce-back rate meets standard simultaneously in LCD liquid crystal display.
As shown in Figure 2, three groups of infrared probes 2 are embedded on the base 1 of motion surface layer ballistic properties detector, infrared emitting direction and roughly interval are as shown in the figure, when there being wherein one group of infrared probe 2 signal of object blocks, infrared probe 2 sends a signal to embedded circuit structure, circuit structure goes out bounce-back rate and sends it back hand-held set by wireless launcher according to the mistiming data solver of front twice football blocking-up infrared light path, completes infrared probe 2 measuring abilities.
As shown in Figure 3, the workflow of motion surface layer ballistic properties detector is as follows: start, circuit powers on, football is caught on ball hook, and tension stay cord, regulates arrangement for adjusting height to make football bottom surface apart from ground floor certain altitude, unclamp stay cord, football is done the movement of falling object, and when football contacts with ground floor for the second time, hand-held set can receive ground floor bounce-back rate, and also explicitly whether surface layer bounce-back rate and this bounce-back rate meet standard.Now complete single and detect, if hand-held set fails to receive correct mistiming data and bounce-back rate data, will retighten football test one time.
As shown in Figure 4, the slave computer circuit structure that is embedded in base is comprised of infrared probe testing circuit, controller and wireless launcher.The signal that infrared probe testing circuit detects is transferred to controller, and controller calculates corresponding mistiming acquisition athletic ground bounce-back rate, then by wireless launcher, sends the data to hand-held set.
As shown in Figure 5, hand-held set circuit structure is comprised of radio receiver, controller and LCD liquid crystal.Radio receiver receives hand-held set and sends the bounce-back rate data of returning, and shows whether bounce-back rate and ground floor bounce-back rate meet standard on LCD liquid crystal.
More than provided according to the exemplary description of the various piece in structure of the present utility model and electric component, yet the utility model is not limited to said structure and electric implementation, can also take other structure and electric component implementation.
Detection method of the present utility model is achieved in that
1, detect principle: utilize standard pressure football on motion surface layer, to measure the bounce-back height of football, calculate the bounce-back rate of ball.
2, testing tool parameter: the shelf that is 2.2m with the height of elevation ruler.
3, a. clamps football with ball hook, and tension stay cord is adjusted arrangement for adjusting height makes football lower edge apart from motion surface layer 2m place.
B. football aeration quantity is standard pressure football.
C. measurement standard football and the front time interval t contacting for twice of motion surface layer, unit is second to be accurate to 0.001 second.
D. each check point carries out 5 measurements, also can increase as required detection number of times.
4, detected value calculates: the bounce-back of ball is highly calculated by formula (1), is accurate to 0.1mm; The bounce-back rate Br of ball calculates by formula (2), with number percent, represents, is accurate to 0.1%:
Br=H/Ho×100%(2)
(1) g-local gravitational acceleration in formula, unit is m/s
2; The mistiming that the football of t-record contacts for twice with motion surface layer, unit is second (s); H-standard football is at the bounce-back height of motion surface layer, and unit is rice (m).
(2) in formula, the bounce-back Shuai， unit of Br-standard football on motion surface layer is %; In H-(1), gained standard football is at the bounce-back height of motion surface layer, and unit is rice (m); Ho-standard football lower edge, apart from floor level, is 2 meters.
The test result of each test point is the arithmetic mean of 5 correct test results, is accurate to 0.1%.
Physical construction some work process of the present utility model:
Physical construction part is by base 1, elevation ruler 3, arrangement for adjusting height 4, pulley 6, support 7, tightly restraint sheet 8 and ball hook 9 forms.Standard pressure football is hooked with ball hook 9, and stay cord 5 is connected with tight bundle sheet 8 by the pulley 6 on support 7.Tension stay cord 5, tightly restraints on sheet 8 and moves, and ball hook 9 can be firmly grasped football, regulates arrangement for adjusting height 4, and making football bottom surface is 2 meters apart from ground floor height, unclamps stay cord 5, and football can be done the movement of falling object.Process, without interference from human factor, affects measurement result without any external force.
The test section of the present utility model course of work:
Test section is comprised of infrared probe 2 and interlock circuit.When base 1 middle have no occluder, infrared probe 2 is output as high level, and while having shelter in the middle of base 1, infrared probe 2 is output as low level.Around this principle, in the time of in the middle of football 8 falls into base 1, infrared probe 2 can detect its time at every turn falling into, and the mistiming that controller falls into base 1 according to front twice football 8 can calculate ground floor bounce-back rate and by wireless base station apparatus, data be sent it back to hand-held set.
The hand-held set course of work of the present utility model:
Hand-held set, by radio receiver, LCD liquid crystal and respective peripheral the electric circuit constitute, receives the ground floor bounce-back rate that slave computer sends it back, and explicitly whether surface layer bounce-back rate and bounce-back rate meet standard.
Using method of the present utility model:
As shown in Figure 1, first base 1, elevation ruler 3, arrangement for adjusting height 4, support 7, ball hook 9 should be installed as shown in the figure, and guarantee appropriate section perpendicularity.Hand-held set and slave computer after all starting shooting connect standard pressure football and ball hook 9, tension stay cord 5, ball hook 9 hooks football, now regulate arrangement for adjusting height 4, make 2 meters of football bottom surface and ground floor distances, unclamp stay cord 5, football can be done the movement of falling object, when football contacts after twice with ground floor, hand-held set can be received the bounce-back rate of ground floor, and on LCD liquid crystal, shows whether bounce-back rate and this ground floor bounce-back rate meet standard.If needed, each check point can carry out repeated detection, only needs football and ball hook 9 to retighten.
The utility model integrates electrical design and structural design, simple in structure, bounce-back rate is measured accurately, detachable and assembling, be convenient for carrying, formulation for stadiums athletic ground quality standard can be played certain booster action, thereby improves the fair and just of athletics sports, is adapted at sports buildings and professional testing agency and promotes.
Claims (5)
1. a motion surface layer ballistic properties detector, it is characterized in that: the elevation ruler (3) that comprises vertical setting, elevation ruler (3) bottom is connected to base (1), on base (1), be embedded with infrared probe (2), elevation ruler (3) upper end socket arrangement for adjusting height (4), arrangement for adjusting height (4) is connected with support (7), support (7) other end is hinged with ball hook (9), support (7) is provided with pulley (6), stay cord (5) is connected with the tight bundle sheet (8) being enclosed within on ball hook (9) by pulley (6), ball hook (9) is for clamping spheroid, by straining or loosening stay cord (5) and control ball hook (9) clamping spheroid or discharge spheroid, in test process, unclamp stay cord (5), tight bundle sheet (8) moves down and discharges ball hook (9), the football kiss the earth again of doing to upspring after freely falling body kiss the earth, the mistiming data that the infrared probe (2) of installing in base (1) and slave computer gather twice football kiss the earth, extrapolate athletic ground bounce-back height, and then calculate bounce-back rate, and data are sent on the hand-held set in test personnel hand, reception, processing and the demonstration of data by hand-held set, completed.
2. motion surface layer ballistic properties detector according to claim 1, it is characterized in that: described elevation ruler has scale mark on (3), chi is high is set to 2 meters, and base (1) is the square of 1 meter of the length of side, and elevation ruler (3) is fixedly linked by bolt arrangement with base (1).
3. motion surface layer ballistic properties detector according to claim 1 and 2, it is characterized in that: described ball hook (9) is claw type structure, be hinged on support (7), the upper cover of ball hook (9) has tight bundle sheet (8), tight bundle sheet (8) upper end is connected with stay cord (5), the pulley (6) that stay cord (5) is provided with by support (7), when stay cord (5) is strained, on tight bundle sheet (8), move, the arcuate structure of ball hook (9) can firmly be firmly grasped spheroid, when stay cord (5) unclamps, ball hook (9) is decontroled spheroid; Described spheroid is the football of standard pressure.
4. motion surface layer ballistic properties detector according to claim 1 and 2, is characterized in that: described slave computer is comprised of infrared probe testing circuit, mission controller and wireless launcher; Before and after being embedded in infrared probe (2) the detection spheroid on base (1), fall for twice the motion surface layer mistiming, infrared probe testing circuit is transferred to mission controller by the signal detecting, mission controller calculates corresponding mistiming acquisition motion surface layer bounce-back rate, then by wireless launcher, sends the data to the hand-held set in testing staff's hand;
Described hand-held set is comprised of radio receiver, reception controller and LCD liquid crystal display; Radio receiver receives after the bounce-back rate data that slave computer sends, and by receiving after controller is processed, shows bounce-back rate and show whether motion surface layer bounce-back rate meets standard simultaneously in LCD liquid crystal display.
5. motion surface layer ballistic properties detector according to claim 3, is characterized in that: described slave computer is comprised of infrared probe testing circuit, mission controller and wireless launcher; Before and after being embedded in infrared probe (2) the detection spheroid on base (1), fall for twice the motion surface layer mistiming, infrared probe testing circuit is transferred to mission controller by the signal detecting, mission controller calculates corresponding mistiming acquisition motion surface layer bounce-back rate, then by wireless launcher, sends the data to the hand-held set in testing staff's hand;
Described hand-held set is comprised of radio receiver, reception controller and LCD liquid crystal display; Radio receiver receives after the bounce-back rate data that slave computer sends, and by receiving after controller is processed, shows bounce-back rate and show whether motion surface layer bounce-back rate meets standard simultaneously in LCD liquid crystal display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320266188.5U CN203443872U (en) | 2013-05-16 | 2013-05-16 | Rebound performance detector for motion surface layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320266188.5U CN203443872U (en) | 2013-05-16 | 2013-05-16 | Rebound performance detector for motion surface layer |
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| CN203443872U true CN203443872U (en) | 2014-02-19 |
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| CN201320266188.5U Withdrawn - After Issue CN203443872U (en) | 2013-05-16 | 2013-05-16 | Rebound performance detector for motion surface layer |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267696A (en) * | 2013-05-16 | 2013-08-28 | 国家体育总局体育科学研究所 | Rebound property detector of movement surface course |
| CN104505363A (en) * | 2014-12-25 | 2015-04-08 | 苏州凯锝微电子有限公司 | Wafer clamping device |
| CN105277146A (en) * | 2015-11-18 | 2016-01-27 | 大加利（太仓）质量技术检测中心有限公司 | A ball body bouncing height measuring device and measuring method |
| CN105527187A (en) * | 2015-12-31 | 2016-04-27 | 聊城大学 | A portable football rebound rate detector for a football court |
| CN105696431A (en) * | 2016-03-29 | 2016-06-22 | 中铁五局集团有限公司 | Mobile track lifting elevation ruler for railways |
| CN112484944A (en) * | 2020-12-08 | 2021-03-12 | 济宁市技师学院 | A motion cooperation verification device for mechanical design |
-
2013
- 2013-05-16 CN CN201320266188.5U patent/CN203443872U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267696A (en) * | 2013-05-16 | 2013-08-28 | 国家体育总局体育科学研究所 | Rebound property detector of movement surface course |
| CN103267696B (en) * | 2013-05-16 | 2015-09-23 | 国家体育总局体育科学研究所 | Rebound property detector of movement surface course |
| CN104505363A (en) * | 2014-12-25 | 2015-04-08 | 苏州凯锝微电子有限公司 | Wafer clamping device |
| CN105277146A (en) * | 2015-11-18 | 2016-01-27 | 大加利（太仓）质量技术检测中心有限公司 | A ball body bouncing height measuring device and measuring method |
| CN105277146B (en) * | 2015-11-18 | 2018-06-12 | 大加利（太仓）质量技术检测中心有限公司 | A kind of sphere rebound height measuring device and measuring method |
| CN105527187A (en) * | 2015-12-31 | 2016-04-27 | 聊城大学 | A portable football rebound rate detector for a football court |
| CN105696431A (en) * | 2016-03-29 | 2016-06-22 | 中铁五局集团有限公司 | Mobile track lifting elevation ruler for railways |
| CN105696431B (en) * | 2016-03-29 | 2018-07-31 | 中铁五局集团有限公司 | A kind of railway movable type track lifting elevation ruler |
| CN112484944A (en) * | 2020-12-08 | 2021-03-12 | 济宁市技师学院 | A motion cooperation verification device for mechanical design |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140219 Effective date of abandoning: 20150923 |
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| RGAV | Abandon patent right to avoid regrant |