CN102961880A - Secondary buffering type hurdle frame - Google Patents
Secondary buffering type hurdle frame Download PDFInfo
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- CN102961880A CN102961880A CN2012105440808A CN201210544080A CN102961880A CN 102961880 A CN102961880 A CN 102961880A CN 2012105440808 A CN2012105440808 A CN 2012105440808A CN 201210544080 A CN201210544080 A CN 201210544080A CN 102961880 A CN102961880 A CN 102961880A
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- baffle plate
- hurdles rack
- base
- slip column
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Abstract
The invention relates to a secondary buffering type hurdle frame and aims at ensuring fair competitions and safe training and lowering athlete injuries caused by hurdle hitting to a certain extent. The hurdle frame comprises a base 1, a base lifting device 2, a base connecting rod 3, forward swinging resistance springs 4, support upright posts 5, support upright post rotating shafts 6, sliding upright posts 7, door opening type baffles 8, baffle resistance springs 9, baffle rotating shafts 10, long sliding holes 11 and baffle door stoppers 12, wherein the resistance springs are respectively arranged at the connecting parts of the sliding upright posts with the door opening type baffles and the base to form a secondary buffering system of the hurdle frame. When the baffles lose acting force, the sliding upright posts and the opened door opening type baffles can be automatically reset by the forward swinging resistance springs and the baffle resistance springs. Therefore, although the sliding upright posts swing forward, the perpendicular height of the swinging hurdle frame is not changed due to the presence of the base lifting device. The multiple defects of the existing hurdle frame can be improved.
Description
Technical field
The present invention relates to the sports movement apparatus field, be specifically related to the equipment of hurdle race project---hurdles rack.
Background technology
Widely used hurdle race hurdle frame is " L " shape hurdles rack in the world at present, is the fairness that guarantees contest, and International Track and Field Association is clear in " track and field rules of contest 2012-2013 ": the value scope of pushing over power is 3.6～4.0kg.But very dangerous the sportsman of this resistance in running fast, be shorter than human response latency 100～120ms the action time of beating hurdle moment, and therefore, the sportsman will be difficult to make a response fast when occuring to beat the hurdle, and injury accident easily meets accident.And other comparatively safe hurdles standard for training, as the safe hurdle bar that automatically resets, foldable safety hurdle etc., because can't guarantee the sportsman does not make a profit because beating the hurdle, deviated from the fairness doctrine of contest, therefore can't be used for regular match.
Summary of the invention
The present invention is directed to the contradiction situation that safety problem that hurdles rack in the present hurdle race campaign exists and contest equity problem are difficult to solve simultaneously, propose a kind of employing level 2 buffering pattern and based on hurdles rack---the level 2 buffering formula hurdles rack of the base forward swing lifting apparatus of " keeping the constant method of swing bodies vertical height ".This hurdles rack is intended to guarantee the justice of contest, the safety of training, has reduced to a certain extent the injury that the sportsman causes because beating the hurdle.
The ■ technical scheme
Described opening door baffle plate refers to that baffle plate is two that separate, respectively around the slip column forwards in a plane outward turning open, the angular range of unlatching is 0～90 °.The course of work: during original state, two baffle plates connect by door attraction device is closed, and angle is 0 °, and at this moment, the baffle plate resistance spring is the shortest original state of length.When baffle plate was subject to the External Force Acting of the certain value before backward, door attraction device was opened, simultaneously two baffle plates respectively around the slip column at two ends forward outward turning open, during will be subject to the lasting drag effect of baffle plate resistance spring.When External Force Acting disappears, in the traction lower baffle plate homing of the deformation restoring force of baffle plate resistance spring, return 0 °, door attraction device is again closed simultaneously.
Two parts of the mutual interlock of described door attraction device are individually fixed on two baffle plates, and the snap-in force by certain value connects to realize that baffle plate is closed.This snap-in force can be magnetic attraction, mechanical friction power or other physics snap-in forces.Door attraction device will be opened when being subject to the External Force Acting of certain value.
Described base lifting apparatus is based on the rail groove that one on the base has specific arc that is fixed on of " keeping the constant method of swing bodies vertical height ".When original state, establishing the slip column lower end is that r, slip column upper end are that angle is θ between R, slip column and the vertical plane to the length of support post axle to the length of support post axle, and then rising height L is: L=(r+R) (1-cos θ).The pulley of base lifting apparatus and support post, slip column and slip column consists of level 2 buffering formula hurdles rack " forward swing lifting apparatus " system jointly.The course of work: slip column lower end pulley is in the lowest part of base lifting apparatus during original state; Deformation does not occur in the base resistance spring, is in original state; When hurdles rack was subject to by the External Force Acting before backward, the slip column lower end rotated take the support post pivot pin as fulcrum, and slides to the back upper place; Simultaneously, lower head sheave backswing, and in the curved surface rail groove of base lifting apparatus by the front lower place to the back upper place lifting, so that the hurdles rack baffle plate remains at sustained height before swing finishing.When swinging to certain angle, the slip column then stops swinging.
The explanation of ■ principle
(1) described level 2 buffering is the compound action of first order buffering (by the slip column resistance that the base resistance spring gives in the forward swing process) and second level buffering (the baffle plate door attraction device is opened the resistance that the baffle plate resistance spring gives in the backboard outward turning opening procedure).This system is called the level 2 buffering system.With respect to " L " type hurdles rack, this system utilizes the increase of action time in the level 2 buffering process and the proper extension of operating distance, the resistance that is subject to when making the sportsman occur to beat the hurdle disperses, beat the hurdle momentary action time trend towards 100 safer～120ms or more than, thereby reduce the incidence of sudden hurt accident, improve the security performance of hurdles rack.
The drag size explanation: resistance can require to adjust according to contest.For example, can be distributed as: 1, slip column forward swing process 0～3.6kg; 2, the opening door baffle plate is opened 0～0.4kg; 3, the baffle plate door attraction device is opened threshold value 3.6kg.
Workflow: the sportsman beats hurdle → slip column forward swing → baffle plate door attraction device unlatching → opening door baffle plate and opens → and the sportsman replys original state by hurdles rack → hurdles rack.
Workflow explanation: when beating the hurdle, the sportsman is to the active force of hurdles rack at first promote to slide part forward swing more than the column, and the sportsman will be subject to the reaction force of hurdles rack in this process, i.e. the resistance of base resistance spring, and resistance changes from small to big.When strength reached default maximum, forward swing finished; Simultaneously, the baffle plate door attraction device is opened, and the maximum of power equated when the threshold value that this device is opened finished with forward swing; Simultaneously, baffle plate be subject to active force that the sportsman applies forward outward turning open, the maximum angle of unlatching is 90 °, the resistance that is subject to the baffle plate resistance spring during this changes from small to big; When angle was opened to a certain degree, the sportsman was by this hurdles rack; Thereafter, hurdles rack is replied original state voluntarily.
(2) described " keeping the constant method of swing bodies vertical height " refers to work as object in swing process, the height of this object taked class methods of corresponding compensation for its vertical height is not changed all the time.If a two-end-point perpendicular to the vertical rod on a certain plane is respectively P, Q, when take certain the some O between the vertical rod PQ as fulcrum when rotating (vertical height and the position of O immobilize), then respective change will occur with respect to the vertical height of self original state in P, Q.When original state, to establish P be r, Q to the distance of O to the distance of O is that angle is θ after R, the vertical rod rotation and between the vertical plane, and then the height change L of this vertical rod is: L=(r+R) (1-cos θ).In order to make P remain at sustained height, the present invention is by adding the tracks with particular curvature to this object bottom, move at this track for Q, and track is L corresponding to the altimetric compensation amount that the position of Q gives, then L=(r+R) (1-cos θ).As shown in Figure 3.
Therefore, when the method is used for hurdles rack, can guarantee the sportsman in beating the hurdle process, the vertical height of hurdles rack baffle plate can be constant at the numerical value of match of International Track and Field Association's regulation until the unlatching of hurdles rack baffle plate, thereby avoid sportsman's improper profit during this period, guarantee the fairness of competing.
Description of drawings
Fig. 1 is part (slip vertical rod and baffle plate) three-view diagram on the hurdles rack;
Fig. 2 is hurdles rack base position three-view diagram;
Fig. 3 is for keeping the constant Method And Principle figure of object vertical height;
Fig. 4 is level 2 buffering work schematic diagram;
Fig. 5 is level 2 buffering formula hurdles rack three-view diagram.
The specific embodiment
The present invention---level 2 buffering formula hurdles rack is the injury that causes because beating the hurdle in order both to reduce the sportsman, guarantees again a kind of safety and fair sports apparatus taken into account that the sportsman does not make a profit and researches and develops because hitting the hurdle.
Agent structure of the present invention such as Fig. 1, Fig. 2, shown in Figure 5.Base 1 adopts the hollow cuboid steel of 700mm*60mm*40mm to be made.Now take a wing base as example, cut out a flute profile between the upper bottom surface 35～150mm of base 1, a support post 5 is fixed in its outer end, and support post 5 adopts the steel pipe of 300mm*25mm*25mm, and a support post rotating shaft 6 is fixed in its upper end; The material of slip column 7 is identical with support post, the slip slotted hole 11 of one 100mm*8mm of the side face drilling between lower end 250～350mm height therein, slip column 7 is linked to each other with support post rotating shaft 6, and a pulley is fixed in slip column 7 lower ends, and it can be moved at base lifting apparatus 2; The base lifting apparatus adopts the metal material that has certain degree of hardness, is difficult for occuring deformation, according to formula L=(r+R) (1-cos θ), can calculate the curved surface radian of base lifting apparatus 2, so that slip column 7 hurdles rack baffle plate in the forward swing process is in a constant altitude all the time.Fix a forward swing resistance spring 4 in base 1 front end 0～35mm, its elastic force maximum is (3.6*9.8) N.This forward swing resistance spring 4 links to each other with nearly pulley place, slip column 7 lower ends, as shown in Figure 2.Slip column 7 upper ends link to each other with opening door baffle plate 8, and baffle plate adopts such as light-duty solid materials such as foam aluminium alloys, and baffle plate rotating shaft 10, baffle plate resistance spring 9 are arranged therebetween; One baffle plate door attraction device 12 is arranged between the baffle plate, and the unlatching of this device need be subject to the active force of (3.6*9.8) N, as shown in Figure 1.
The present invention---the specific works flow process of level 2 buffering formula hurdles rack: when the sportsman is clashed into opening door baffle plate 8, the elastic force that the sportsman acts on baffle plate is passed to slip column 7, make its forward swing, the pulley that then promotes slip column 7 lower ends moves to the back upper place along base lifting apparatus 2.In this process, slip slotted hole 11 moves obliquely upward take support post rotating shaft 6 as rotating shaft.When slip column 7 forward swings during to certain angle, the elastic force of forward swing resistance spring reaches maximum (3.6*9.8) N, and said process as shown in Figure 4.At this moment, opening door baffle plate 8 is opened take baffle plate rotating shaft 10 as the axle outward turning under external force.After the sportsman passed through this hurdles rack, baffle plate is homing under the traction of the deformation restoring force of baffle plate resistance spring, and door attraction device is again closed.Slip column 7 is in the effect of forward swing resistance spring 4 rejuvenate beginning position next time, thereby finishes the present invention---the level 2 buffering process of level 2 buffering formula hurdles rack.
Claims (7)
1. level 2 buffering formula hurdles rack, the slip column, baffle plate rotating shaft, baffle plate resistance spring, opening door baffle plate, the baffle plate door attraction device that comprise base, base connecting rod, base lifting apparatus, forward swing resistance spring, support post, connection baffle plate, it is characterized in that the slip column that connects baffle plate is realized first order buffering under the effect of base lifting apparatus, forward swing resistance spring, support post rotating shaft; When the slip column was rocked to certain angle, door attraction device was opened, and opening door baffle plate forward outward turning is opened, and realized second level buffering under the cushioning effect of baffle plate resistance spring.
2. level 2 buffering formula hurdles rack according to claim 1, be provided with the forward swing resistance spring of specific stiffness factor and baffle plate resistance spring under the mating reaction of base lifting apparatus, support post rotating shaft, opening door baffle plate and baffle plate rotating shaft, opening threshold by one is the door attraction device of bed knife value, make active force that the sportsman beats the hurdle be scattered in the overall process of beating the hurdle along with the increase of operating distance and the prolongation of action time, thereby promote the safety coefficient of hurdles rack.
3. level 2 buffering formula hurdles rack according to claim 1, it is characterized in that, described " keeping the constant method of swing bodies vertical height " refers to work as shaft (such as the column of hurdles rack) in swing process, for not changing all the time, the vertical height that makes its top do not pass through a particular curvature rail groove is added in its bottom the class methods that its height that loses is compensated in swing process.Curved surface rail groove height L and fulcrum to distance and the swing angle theta pass of shaft bottom r, top R are: L=(r+R) (1-cos θ).
4. level 2 buffering formula hurdles rack according to claim 1 is characterized in that, there is a slip slotted hole the middle lower end of the slip column of described connection baffle plate; The slip column lower end has a pulley; The slip column links to each other with support post by rotating shaft; The slip column is by the rotation of sliding in the rotating shaft of support post of slip slotted hole.
5. level 2 buffering formula hurdles rack according to claim 1 is characterized in that, described forward swing resistance spring links to each other with the slip column lower end, and the pulley that the slip column lower end connects moves at the base lifting apparatus.
6. level 2 buffering formula hurdles rack according to claim 1 is characterized in that, described base lifting apparatus makes the slip column that connects baffle plate at initial position and after being rocked to certain angle, and baffle plate can both remain on sustained height.
7. level 2 buffering formula hurdles rack according to claim 1 is characterized in that, the curved surface of described base lifting apparatus is a specific arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210544080.8A CN102961880B (en) | 2012-12-11 | 2012-12-11 | Secondary buffering type hurdle frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210544080.8A CN102961880B (en) | 2012-12-11 | 2012-12-11 | Secondary buffering type hurdle frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102961880A true CN102961880A (en) | 2013-03-13 |
| CN102961880B CN102961880B (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210544080.8A Expired - Fee Related CN102961880B (en) | 2012-12-11 | 2012-12-11 | Secondary buffering type hurdle frame |
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| CN (1) | CN102961880B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103623599A (en) * | 2013-12-11 | 2014-03-12 | 葛剑 | Balk board assembly |
| CN105270456A (en) * | 2015-08-15 | 2016-01-27 | 重庆金优元建材有限公司 | Plane-glass transporting dolly |
| CN105903214A (en) * | 2016-05-12 | 2016-08-31 | 安徽波浪岛游乐设备有限公司 | Sports hurdle |
| CN106563280A (en) * | 2016-11-05 | 2017-04-19 | 广东石油化工学院 | Bar hurdle base gear-shifting method and device |
| CN106621413A (en) * | 2016-11-05 | 2017-05-10 | 广东石油化工学院 | Method and device for adjusting hurdle levels |
| CN107126713A (en) * | 2017-06-23 | 2017-09-05 | 平湖市酷风文体用品有限公司 | A kind of hurdles standard for training |
| CN113398606A (en) * | 2021-07-06 | 2021-09-17 | 滁州学院 | Hurdle frame for sports competition |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB819145A (en) * | 1956-10-19 | 1959-08-26 | Guy Bryan Lodge | Hurdles for athletic use |
| CN2119956U (en) * | 1992-04-18 | 1992-10-28 | 郭强 | Multifunctional unfall hurdle |
| CN2238075Y (en) * | 1995-11-23 | 1996-10-23 | 刘玉友 | Semi-automatic hurdle |
-
2012
- 2012-12-11 CN CN201210544080.8A patent/CN102961880B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB819145A (en) * | 1956-10-19 | 1959-08-26 | Guy Bryan Lodge | Hurdles for athletic use |
| CN2119956U (en) * | 1992-04-18 | 1992-10-28 | 郭强 | Multifunctional unfall hurdle |
| CN2238075Y (en) * | 1995-11-23 | 1996-10-23 | 刘玉友 | Semi-automatic hurdle |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103623599A (en) * | 2013-12-11 | 2014-03-12 | 葛剑 | Balk board assembly |
| CN105270456A (en) * | 2015-08-15 | 2016-01-27 | 重庆金优元建材有限公司 | Plane-glass transporting dolly |
| CN105903214A (en) * | 2016-05-12 | 2016-08-31 | 安徽波浪岛游乐设备有限公司 | Sports hurdle |
| CN106563280A (en) * | 2016-11-05 | 2017-04-19 | 广东石油化工学院 | Bar hurdle base gear-shifting method and device |
| CN106621413A (en) * | 2016-11-05 | 2017-05-10 | 广东石油化工学院 | Method and device for adjusting hurdle levels |
| CN107126713A (en) * | 2017-06-23 | 2017-09-05 | 平湖市酷风文体用品有限公司 | A kind of hurdles standard for training |
| CN113398606A (en) * | 2021-07-06 | 2021-09-17 | 滁州学院 | Hurdle frame for sports competition |
| CN113398606B (en) * | 2021-07-06 | 2022-12-23 | 滁州学院 | Hurdle frame for sports competition |
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| Publication number | Publication date |
|---|---|
| CN102961880B (en) | 2014-12-17 |
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Granted publication date: 20141217 Termination date: 20171211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |