CN111672142A - Hurdle frame capable of reducing injury in hurdle fault - Google Patents
Hurdle frame capable of reducing injury in hurdle fault Download PDFInfo
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- CN111672142A CN111672142A CN202010589225.0A CN202010589225A CN111672142A CN 111672142 A CN111672142 A CN 111672142A CN 202010589225 A CN202010589225 A CN 202010589225A CN 111672142 A CN111672142 A CN 111672142A
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- connecting piece
- hurdle
- slot
- spring
- stand
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63K—RACING; RIDING SPORTS; EQUIPMENT OR ACCESSORIES THEREFOR
- A63K3/00—Equipment or accessories for racing or riding sports
- A63K3/04—Hurdles or the like
- A63K3/043—Athletics hurdles
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Abstract
The invention discloses a hurdle frame capable of reducing injury during hurdle errors, which comprises an upright post, wherein a first connecting piece and a second connecting piece are respectively arranged above opposite surfaces of the upright post, a telescopic rod is arranged between the first connecting piece and the second connecting piece, a first spring is fixed at one end of the side surface of the telescopic rod, and a second spring is fixed at the other end of the side surface of the telescopic rod. According to the hurdle frame, the first fixing piece and the second fixing piece on the hurdle frame are extruded towards the interior of the hurdle frame under the weight of the hurdle frame, the telescopic rod is contracted under the action force of the reset spring, the width of the hurdle frame when falling down is reduced, the influence on other runways is avoided, springs are arranged at two ends of the side face of the telescopic rod, the injury to a trainer is reduced, the side face of the upright post is provided with the air bag, and after the air bag collides with the telescopic rod, the air bag is driven to be discharged to be paved on the ground, so that secondary injury caused by falling down is prevented, and the trainer is protected in an all-round mode.
Description
Technical Field
The invention relates to the technical field of sports equipment, in particular to a hurdle frame capable of reducing injury during hurdle faults.
Background
The hurdle frame running is a sprint item which strides over hurdles with specified height and quantity within a certain distance and has strong technical performance. The international competition men are 110 m high hurdles, 106 cm high hurdles and 10 hurdles; the girls are 100 meters in the low hurdle, 84 centimeters in the high hurdle and 10 hurdles. In the sports teaching, the hurdle frame used is the hurdle frame for formal match
When using, if when hurdling, will stride hurdle and knock down, then can influence the hurdle of training person on all the other runways, when using in addition, if the training person collides on the railing, can cause the injury of certain degree to the training person to, after the collision, the falling of training person then can cause the secondary injury.
Disclosure of Invention
The invention mainly aims to provide a hurdle frame capable of reducing damage due to hurdle faults, and mainly solves the following technical problems:
when using, if when hurdling, will stride hurdle and knock down, then can influence the hurdle of training person on all the other runways, when using in addition, if the training person collides on the railing, can cause the injury of certain degree to the training person to, after the collision, the falling of training person then can cause the secondary injury.
In order to achieve the purpose, the invention adopts the technical scheme that:
a hurdle frame capable of reducing injury during hurdle errors comprises a stand column, wherein two stand columns are arranged, a base is arranged at the bottom end of the side surface of each stand column, a through hole is formed in the side surface of each stand column, a first connecting piece and a second connecting piece are arranged above the opposite surface of each stand column respectively and are located in mounting grooves, the mounting grooves are formed in the upper portions of the side surfaces of the stand columns, a telescopic rod is arranged between the first connecting piece and the second connecting piece, a placing groove is formed in the telescopic rod in a contracting mode, a first cavity is formed in one side of the first connecting piece, one end of the telescopic rod is inserted into the first cavity, a first spring is fixed at one end of the side surface of the telescopic rod, the other end of the first spring is fixed in the first connecting piece, a second cavity is formed in the second connecting piece, and the other end of the telescopic rod is inserted, the other end of telescopic link side is fixed with the second spring, the one end of second spring is fixed on the second connecting piece, the side of first connecting piece and second connecting piece all is provided with the rotor plate, when hurdling teaching or training, when hurdling the person and touching the telescopic link, the collision of power, make the telescopic link remove to one side, and overturn the rotor plate to one side, the harm to device self has been reduced, and under the effect of first spring and second spring, cushion the power, and the rigidity intensity of railing has been reduced, avoid the reaction of power to cause great harm, reduce the injury that the railing caused the user.
Furthermore, the other end of the first connecting piece is provided with a first reset spring, the other end of the first reset spring is provided with a first connecting plate, a first empty slot is formed in the first connecting piece, a first fixing piece is arranged in the first empty slot, a first slot is formed in one end of the first fixing piece, the first fixing piece penetrates through the through hole, the inserting rod is inserted into the first slot after the telescopic rod is adjusted, the through hole is pulled out of the first fixing piece, the first connecting piece is fixed, and the first reset spring is in a stretching state.
Furthermore, the other end of the second connecting piece is provided with a second reset spring, the other end of the second reset spring is provided with a second connecting plate, a second dead slot is formed in the second connecting plate, a second fixing piece is arranged in the second dead slot, a second slot is formed in one end of the second fixing piece, the inserted rod is inserted into the second slot, the second fixing piece is pulled out of the through hole to fix the second connecting piece, the second reset spring is in a compression state, the stretching of the first reset spring and the compression of the second reset spring enable the second reset spring to have corresponding acting force, when the hurdle is fallen down, the fixing piece is extruded into the device, under the acting force of the reset spring, the hurdle is contracted, and the hurdle of a trainer on other runways is prevented from being influenced.
Further, erect the groove has been seted up to the top of stand one side, the spout has been seted up to the below of stand opposite side, erect the both sides of groove top and all seted up a plurality of draw-in grooves, the fixed plate has been inserted in the draw-in groove, the one end of fixed plate inserts the inside to first connecting plate and second connecting plate respectively, utilizes the fixed plate to fix first connecting plate and second connecting plate, and can guarantee first reset spring and second reset spring's stable state.
Further, one side of spout is provided with the third spring, the other end of third spring is provided with the baffle, the baffle is respectively in the side contact of first connecting piece and second connecting piece, the bottom of spout is provided with the gasbag, and the opposite side of gasbag and the medial surface contact of baffle, when hurdling, if touch the telescopic link, the telescopic link extrudees the third spring, the removal of the baffle of being convenient for to emit the gasbag, be convenient for utilize the gasbag to protect the training person.
Further, the side of first connecting piece is provided with high scanner, be provided with display screen and operating panel on the stand, be provided with the battery on the stand to and corresponding plc, when training at every turn, when can striding the fence with the training person, and the interval between the telescopic link carries out accurate measurement, and with measuring data transfer to the display screen on, average value is got in many times of measuring, the regulation of the height of being convenient for, and can be clear and definite and the difference between others, thereby be favorable to the training.
Further, the hurdle frame provided by the invention comprises the following specific steps:
the method comprises the following steps: adjusting the telescopic rod to a proper height, inserting the fixing plate into the clamping groove, fixing the first connecting plate and the second connecting plate respectively, and inflating the air bag by using the air pump so that the top end of the air bag is in contact with the lower parts of the first connecting piece and the second connecting piece, and the air bag is in a folded state;
step two: the first connecting piece is pulled out outwards, the inserting rod is inserted into the first slot when the first slot is opposite to the through hole, a vertical through hole is formed in the surfaces of the first slot and the first fixing piece, the inserting rod is inserted into the first slot through the vertical through hole, the inserting rod is rotated to be perpendicular to the vertical through hole, the first fixing piece is pulled out to be located in the through hole, and the first connecting piece is fixed;
step three: the second connecting piece is pressed inwards, when the second slot is opposite to the through hole, the inserting rod is inserted into the second slot, and the operation mode is the same as that in the second step;
step four: the upright post is moved, and the telescopic rod is pulled to adjust the width to a proper width, so that a hurdle can train conveniently;
step five: when the hurdle fails, the telescopic rods are collided, the telescopic rods collide the rotating plate, the rotating plate is collided to one side, certain buffering is performed by stretching of the springs, and damage caused by the collision is reduced.
Compared with the prior art, after the hurdle frame falls down, the first fixing piece and the second fixing piece on the hurdle frame extrude into the hurdle frame under the weight of the hurdle frame, so that the first connecting piece and the second connecting piece are in a movable state, one end of the first connecting piece and one end of the second connecting piece are respectively provided with the first stretched return spring and the second compressed return spring, the telescopic rod is contracted under the action force of the return springs, the width of the hurdle frame when falling down is reduced, and the influence on other runways is avoided.
Compared with the prior art, the hurdle frame has the advantages that the rotating plates are arranged on the side faces of the first connecting piece and the second connecting piece which are arranged at the two ends of the telescopic rod, when the telescopic rod is touched, the rotating plates are turned to one side by the force exerted by the telescopic rod on the rotating plates, the springs are arranged at the two ends of the side face of the telescopic rod, the force generated by the springs on the telescopic rod is buffered by the stretching of the springs, the injury to a trainer is reduced, the air bag is arranged on the side face of the upright post, and after the air bag collides with the telescopic rod, the air bag is driven to be released to be paved on the ground, so that secondary injury caused by falling is prevented, and the trainer is protected in an.
The parts of the device not involved are the same as or can be implemented using prior art.
Drawings
FIG. 1 is a schematic view of an overall structure of a hurdle rack for reducing injury due to hurdle faults.
FIG. 2 is a rear view of a hurdle rack for reducing injury during hurdle errors according to the present invention.
FIG. 3 is a cross-sectional view of a hurdle frame for reducing injury during a hurdle fault in accordance with the present invention.
FIG. 4 is a cross-sectional view of a center pillar of a hurdle frame for reducing injury due to hurdle errors.
In the figure: 1. a column; 2. a base; 3. a first connecting member; 4. a height scanner; 5. a second connecting member; 6. a card slot; 7. a fixing plate; 8. a telescopic rod; 9. a vertical slot; 10. a through hole; 11. mounting grooves; 12. a first return spring; 13. a first connecting plate; 14. a first empty slot; 15. a first fixing member; 16. a first slot; 17. a rotating plate; 18. a first cavity; 19. a first spring; 20. a second return spring; 21. a second connecting plate; 22. a second empty slot; 23. a second fixing member; 24. a second slot; 25. a second cavity; 26. a second spring; 27. a placement groove; 28. a chute; 29. a third spring; 30. a baffle plate; 31. an air bag; 32. a display screen; 33. an operation panel.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Examples
As shown in figures 1-4, a hurdle frame capable of reducing injury during hurdle errors comprises two upright posts (1), wherein the two upright posts (1) are arranged, a base (2) is arranged at the bottom end of the side surface of each upright post (1), a through hole (10) is formed in the side surface of each upright post (1), a first connecting piece (3) and a second connecting piece (5) are respectively arranged above the opposite surfaces of each upright post (1), the first connecting piece (3) and the second connecting piece (5) are both positioned in a mounting groove (11), the mounting groove (11) is arranged above the side surface of each upright post (1), a telescopic rod (8) is arranged between the first connecting piece (3) and the second connecting piece (5), a placing groove (27) is formed in the telescopic rod (8), a first cavity (18) is formed in one side of the first connecting piece (3), one end of the telescopic rod (8) is inserted into the first cavity (, one end of the side surface of the telescopic rod (8) is fixed with a first spring (19), the other end of the first spring (19) is fixed in the first connecting piece (3), the inside of the second connecting piece (5) is provided with a second cavity (25), the other end of the telescopic rod (8) is inserted into the second cavity (25), the other end of the side surface of the telescopic rod (8) is fixed with a second spring (26), one end of the second spring (26) is fixed on the second connecting piece (5), the side surfaces of the first connecting piece (3) and the second connecting piece (5) are both provided with a rotating plate (17), when a hurdle person touches the telescopic rod (8) during hurdle teaching or training, the hurdle person collides the hurdle, so that the telescopic rod (8) moves to one side, and the rotating plate (17) is overturned to one side, the damage to the device is reduced, and under the action of the first spring (19) and the second spring (26), the force is buffered, and the injury of the handrail to the user is reduced.
The other end of the first connecting piece (3) is provided with a first reset spring (12), the other end of the first reset spring (12) is provided with a first connecting plate (13), a first empty groove (14) is formed in the first connecting piece (3), a first fixing piece (15) is arranged in the first empty groove (14), a first slot (16) is formed in one end of the first fixing piece (15), the first fixing piece (15) penetrates through the through hole (10), after the telescopic rod (8) is adjusted, the inserted rod is inserted into the first slot (16), the first fixing piece (15) is pulled out of the through hole (10), the first connecting piece (3) is fixed, and the first reset spring (12) is in a stretching state.
The other end of the second connecting piece (5) is provided with a second reset spring (20), the other end of the second reset spring (20) is provided with a second connecting plate (21), a second empty groove (22) is formed in the second connecting plate (21), a second fixing piece (23) is arranged in the second empty groove (22), a second slot (24) is formed in one end of the second fixing piece (23), the insert rod is inserted into the second slot (24), the second fixing piece (23) is pulled out of the through hole (10), the second connecting piece (5) is fixed, and the second reset spring (20) is in a compression state.
Erect groove (9) have been seted up to the top of stand (1) one side, spout (28) have been seted up to the below of stand (1) opposite side, erect a plurality of draw-in grooves (6) all seted up at the both sides of groove (9) top, fixed plate (7) have been inserted in draw-in groove (6), the one end of fixed plate (7) inserts the inside to first connecting plate (13) and second connecting plate (21) respectively, utilize fixed plate (7) to fix first connecting plate (13) and second connecting plate (21), and can guarantee that the state of first reset spring (12) and second reset spring (20) is stable.
One side of spout (28) is provided with third spring (29), the other end of third spring (29) is provided with baffle (30), baffle (30) are respectively in the side contact of first connecting piece (3) and second connecting piece (5), the bottom of spout (28) is provided with gasbag (31), the opposite side of gasbag (31) and the medial surface contact of baffle (30), when hurdling, if touch telescopic link (8), telescopic link (8) extrude third spring (29), be convenient for the removal of baffle (30), thereby emit gasbag (31), be convenient for utilize gasbag (31) to protect the training person.
The side of first connecting piece (3) is provided with altitude scanner (4), be provided with display screen (32) and operating panel (33) on stand (1), be provided with the battery on stand (1), when training at every turn, can stride the fence with the training person when, and the interval between telescopic link (8) carries out accurate measurement, and with measuring data transfer to display screen (32) on, average value is got in many times of measuring, the height-adjustable of being convenient for, and can be clear and definite and the difference between the others, thereby be favorable to the training.
The hurdle frame provided by the invention comprises the following specific steps:
the method comprises the following steps: adjusting the telescopic rod (8) to a proper height, inserting the fixing plate (7) into the clamping groove (6), fixing the first connecting plate (13) and the second connecting plate (21) respectively, and inflating the air bag (31) by using an air pump to ensure that the top end of the air bag (31) is in contact with the lower parts of the first connecting piece (3) and the second connecting piece (5), and the air bag (31) is in a folded state;
step two: the first connecting piece (3) is pulled out outwards, when the first slot (16) is opposite to the through hole (10), the inserted rod is inserted into the first slot (16), a vertical through hole is formed in the surfaces of the first slot (16) and the first fixing piece (15), the inserted rod is inserted into the first slot (16) through the vertical through hole, the inserted rod is rotated to be perpendicular to the vertical through hole, the first fixing piece (15) is pulled out to be located in the through hole (10), and the first connecting piece (3) is fixed;
step three: the second connecting piece (5) is pressed inwards, and when the second slot (24) is opposite to the through hole (10), the inserting rod is inserted into the second slot (24), and the operation mode is the same as the second step;
step four: the upright post (1) is moved, and the telescopic rod (8) is pulled to adjust the width to a proper width, so that a hurdle can train conveniently;
step five: when the hurdle fails, the telescopic rod (8) is collided, the telescopic rod (8) collides with the rotating plate (17), the rotating plate (17) is collided to one side, certain buffering is performed by the stretching of the spring, and damage caused by the collision is reduced.
It should be noted that, the invention is a hurdle frame capable of reducing injury during hurdle errors, when in use, the telescopic rod (8) is adjusted to a proper height, the fixing plate (7) is inserted into the clamping groove (6) and is respectively fixed on the first connecting plate (13) and the second connecting plate (21), the air bag (31) is inflated by the air pump, so that the top end of the air bag (31) is contacted with the lower parts of the first connecting piece (3) and the second connecting piece (5), the air bag (31) is in a folded state, the first connecting piece (3) is pulled outwards, when the first slot (16) is opposite to the through hole (10), the inserted rod is inserted into the first slot (16), the first slot (16) and the surface of the first fixing piece (15) are provided with a vertical through hole, the inserted rod is inserted into the first slot (16) through the vertical through hole, and is rotated so that the inserted rod is vertical to the vertical through hole, when the first fixing piece (15) is pulled out to enable the first fixing piece (15) to be located in the through hole (10), the first connecting piece (3) is fixed, the second connecting piece (5) is extruded inwards, when the second slot (24) is opposite to the through hole (10), the inserted rod is inserted into the second slot (24), the operation mode is the same as the operation mode in the step two, the upright post (1) is moved, the width is adjusted to be proper through pulling of the telescopic rod (8), a hurdle person can train conveniently, when the hurdle fails, the telescopic rod (8) is collided, the telescopic rod (8) collides with the rotating plate (17), the rotating plate (17) is collided to one side, certain buffering is carried out by utilizing the stretching of the spring, the damage caused is reduced, when the hurdle is touched, the first fixing piece (15) and the second fixing piece (23) are extruded to enable the first fixing piece (3) and the second connecting piece (5) to enter respectively, under the effect of first reset spring (12) and second reset spring (20), make to stride the hurdle and contract, avoid influencing all the other uses of striding the hurdle, after collision telescopic link (8), first connecting piece (3) and second connecting piece (5) all extrude baffle (30), make then that baffle (30) inside gasbag (31) expose, pave the pad below the device, cause the injury when avoiding falling.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a but hurdle of hurdle error reduction injury hurdle, includes the stand, the stand is provided with two, and the bottom of stand side is provided with the base, the through-hole has been seted up to the side of stand, the top of stand opposite face is provided with first connecting piece and second connecting piece respectively, first connecting piece and second connecting piece all are in the mounting groove, the mounting groove sets up the top to the side of stand, be provided with the telescopic link between first connecting piece and the second connecting piece, the standing groove has been seted up to the inside of shrink telescopic link, its characterized in that: the utility model discloses a fence-crossing training device, including first connecting piece, telescopic link, first cavity, second connecting piece, second cavity, rotating plate, telescopic link, first spring, second connecting piece, first cavity has been seted up to one side of first connecting piece, the one end of telescopic link is inserted in the first cavity, the one end of telescopic link side is fixed with first spring, and the other end of first spring fixes in first connecting piece, the second cavity has been seted up to the inside of second connecting piece, the other end of telescopic link inserts in the second cavity, the other end of telescopic link side is fixed with the second spring, the one end of second spring is fixed on the second connecting piece, the side of first connecting piece and second connecting piece all is provided with the rotating plate, and when hurdle teaching or training, when hurdle person touches the telescopic link, the.
2. A hurdle rack according to claim 1 for reducing injury during hurdle errors, comprising: the other end of the first connecting piece is provided with a first reset spring, the other end of the first reset spring is provided with a first connecting plate, a first empty slot is formed in the first connecting piece, a first fixing piece is arranged in the first empty slot, a first slot is formed in one end of the first fixing piece, the first fixing piece penetrates through the through hole, the inserting rod is inserted into the first slot after the telescopic rod is adjusted, the through hole is pulled out of the first fixing piece, the first connecting piece is fixed, and the first reset spring is in a stretching state.
3. A hurdle rack according to claim 1 for reducing injury during hurdle errors, comprising: the other end of the second connecting piece is provided with a second reset spring, the other end of the second reset spring is provided with a second connecting plate, a second empty groove is formed in the second connecting plate, a second fixing piece is arranged in the second empty groove, a second slot is formed in one end of the second fixing piece, the inserted rod is inserted into the second slot, the second fixing piece is pulled out of the through hole, the second connecting piece is fixed, and the second reset spring is in a compression state.
4. A hurdle rack according to claim 1 for reducing injury during hurdle errors, comprising: the utility model discloses a quick-witted, including stand, spout, fixed plate, first connecting plate and second connecting plate, stand one side, stand and second reset spring, the top of stand one side has been seted up and has been erected the groove, the spout has been seted up to the below of stand opposite side, erect the both sides of groove top and all seted up a plurality of draw-in grooves, the fixed plate has been inserted in the draw-in groove, the one end of fixed plate inserts the inside to first connecting plate and second connecting plate respectively, utilizes the fixed plate to fix first connecting plate and second connecting plate, and.
5. A hurdle rack according to claim 4 wherein said hurdle rack is adapted to reduce injury during a hurdle fault, wherein said hurdle rack comprises: one side of spout is provided with the third spring, the other end of third spring is provided with the baffle, the baffle is respectively in the side contact of first connecting piece and second connecting piece, the bottom of spout is provided with the gasbag, and the opposite side of gasbag and the medial surface contact of baffle, when hurdling, if touch the telescopic link, the telescopic link extrudees the third spring, the removal of the baffle of being convenient for.
6. A hurdle rack according to claim 1 for reducing injury during hurdle errors, comprising: the side of first connecting piece is provided with high scanner, be provided with display screen and operating panel on the stand, be provided with the battery on the stand, when training at every turn, can stride the training person the fence, and the interval between the telescopic link carries out accurate measurement to with measured data transfer to the display screen on, measure the regulation of getting the average, the height of being convenient for many times.
7. A hurdle rack according to any one of claims 1 to 6 wherein said hurdle rack is adapted to reduce injury during a hurdle fault: the method comprises the following specific steps:
the method comprises the following steps: adjusting the telescopic rod to a proper height, inserting the fixing plate into the clamping groove, fixing the first connecting plate and the second connecting plate respectively, and inflating the air bag by using the air pump so that the top end of the air bag is in contact with the lower parts of the first connecting piece and the second connecting piece, and the air bag is in a folded state;
step two: the first connecting piece is pulled out outwards, the inserting rod is inserted into the first slot when the first slot is opposite to the through hole, a vertical through hole is formed in the surfaces of the first slot and the first fixing piece, the inserting rod is inserted into the first slot through the vertical through hole, the inserting rod is rotated to be perpendicular to the vertical through hole, the first fixing piece is pulled out to be located in the through hole, and the first connecting piece is fixed;
step three: the second connecting piece is pressed inwards, when the second slot is opposite to the through hole, the inserting rod is inserted into the second slot, and the operation mode is the same as that in the second step;
step four: the upright post is moved, and the telescopic rod is pulled to adjust the width to a proper width, so that a hurdle can train conveniently;
step five: when the hurdle fails, the telescopic rods are collided, the telescopic rods collide the rotating plate, the rotating plate is collided to one side, certain buffering is performed by stretching of the springs, and damage caused by the collision is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010589225.0A CN111672142A (en) | 2020-06-24 | 2020-06-24 | Hurdle frame capable of reducing injury in hurdle fault |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010589225.0A CN111672142A (en) | 2020-06-24 | 2020-06-24 | Hurdle frame capable of reducing injury in hurdle fault |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111672142A true CN111672142A (en) | 2020-09-18 |
Family
ID=72456563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010589225.0A Withdrawn CN111672142A (en) | 2020-06-24 | 2020-06-24 | Hurdle frame capable of reducing injury in hurdle fault |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111672142A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112958456A (en) * | 2021-03-29 | 2021-06-15 | 安徽采林间食品有限公司 | Sorting and conveying device for food processing |
| CN115653392A (en) * | 2022-12-10 | 2023-01-31 | 承德中拓路桥建设有限公司 | Highway construction protector |
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|---|---|---|---|---|
| CN2635171Y (en) * | 2003-07-09 | 2004-08-25 | 上海市吴淞中学 | Open type hurdle frame |
| US7438668B1 (en) * | 2004-08-19 | 2008-10-21 | Gill Athletics, Inc. | Hurdle |
| CN203154843U (en) * | 2013-04-10 | 2013-08-28 | 山东青年政治学院 | Hurdle rack for physical education teaching |
| CN210698812U (en) * | 2019-08-08 | 2020-06-09 | 李能萍 | Safety hurdle frame for track and field |
| CN210813944U (en) * | 2019-08-31 | 2020-06-23 | 重庆交通职业学院 | Hurdle frame for track and field training |
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2020
- 2020-06-24 CN CN202010589225.0A patent/CN111672142A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2635171Y (en) * | 2003-07-09 | 2004-08-25 | 上海市吴淞中学 | Open type hurdle frame |
| US7438668B1 (en) * | 2004-08-19 | 2008-10-21 | Gill Athletics, Inc. | Hurdle |
| CN203154843U (en) * | 2013-04-10 | 2013-08-28 | 山东青年政治学院 | Hurdle rack for physical education teaching |
| CN210698812U (en) * | 2019-08-08 | 2020-06-09 | 李能萍 | Safety hurdle frame for track and field |
| CN210813944U (en) * | 2019-08-31 | 2020-06-23 | 重庆交通职业学院 | Hurdle frame for track and field training |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112958456A (en) * | 2021-03-29 | 2021-06-15 | 安徽采林间食品有限公司 | Sorting and conveying device for food processing |
| CN115653392A (en) * | 2022-12-10 | 2023-01-31 | 承德中拓路桥建设有限公司 | Highway construction protector |
| CN115653392B (en) * | 2022-12-10 | 2023-02-28 | 承德中拓路桥建设有限公司 | Highway construction protector |
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Application publication date: 20200918 |