CN109701256B - Automatic sand pit flattening device for long jump competition - Google Patents
Automatic sand pit flattening device for long jump competition Download PDFInfo
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- CN109701256B CN109701256B CN201811635239.0A CN201811635239A CN109701256B CN 109701256 B CN109701256 B CN 109701256B CN 201811635239 A CN201811635239 A CN 201811635239A CN 109701256 B CN109701256 B CN 109701256B
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Abstract
The invention discloses an automatic sand pit flattening device for long jump competitions, which comprises racks arranged at the end ground of a sand pit and paved in an extending way along the width direction of the sand pit, wherein rotary shafts are respectively arranged at the ground at the two sides of the sand pit in an extending way along the length direction of the sand pit, a plurality of rotary cutters for flattening a pit print formed in the sand pit are sequentially arranged along the axial direction of the rotary shafts, the automatic sand pit flattening device also comprises a signal control system for driving the two rotary shafts to drive the rotary cutters to simultaneously move and reset from the two sides of the sand pit to the central line direction of the sand pit along the width direction of the sand pit, and a trigger element for starting the signal control system to work after a player steps on a jump board is arranged on the jump board. The control mode of positive rotation and reverse rotation of the servo motor can realize the transverse reciprocating movement of the rotating shaft in the sand pit, so that the sand can be leveled by moving in two directions, the efficiency is greatly improved, the sand is more uniform in the sand pit, and the sand leveling quality is improved.
Description
Technical Field
The invention relates to the technical field of auxiliary tools for physical training and competition, in particular to an automatic sand pit flattening device for long jump competition.
Background
With the continuous improvement of living standard and the continuous development of sports industry, long jump in sports is one of indispensable items in the present day. Long jump, also known as rush jump, track and field sports jump. Is formed by combining the actions of running-up, jumping, soaring, landing and the like. The athlete can run along a straight line, take off the jump with a single foot along the front and the back of the take-off board, and then fall in a sand pit with double feet after the jump, and the ranking is determined according to the jumping distance during the competition. According to the history, the first formal long jump game is held 708 years before the public yuan, and has been on the history of 2700 years. The facility for long jump was very simple at that time, but the soil on the ground was planed loose and then a threshold was placed in front of it instead of the take-off board. In order to avoid the injury accidents caused by falling to the ground, the soil is replaced by the sand pit. At present, long jump training competition is mostly characterized in that a sand pit is arranged on the ground, fine sand is placed in the sand pit, so that the measuring of competition results can be carried out when people jump on the fine sand, and the athlete can not be injured when jumping on the fine sand, but pit marks can be left on the fine sand every time of jumping, so that the fine sand needs to be leveled repeatedly, and the workload is further increased. Therefore, the jumping sand pit of the sports competition needs to be flattened by a trowel.
CN 207153075U discloses a jumping pit sand leveler for long jump match, including the stock, the bottom cover of stock is equipped with the antiskid cover, the top fixedly connected with installation cover of stock, the inner chamber of installation cover runs through and is provided with the bracing piece, and the both sides of bracing piece all run through to the outside of installation cover and the cover is equipped with the connecting block, and one side fixedly connected with fixed block of bracing piece is kept away from to the connecting block. CN 107648832A discloses reciprocating type sports match jumping pit trowelling machine, including the cement floor, the top fixedly connected with springboard on cement floor, the jumping pit that is located the springboard back is seted up at the top on cement floor, the top on cement floor is from a left side to the right side first connecting plate of fixedly connected with and second connecting plate in proper order, first logical groove has all been seted up to one side that first connecting plate and second connecting plate are close to mutually, the second that is located first logical groove below is all seted up to one side that first connecting plate and second connecting plate are close to mutually and is led to the groove.
According to the patent, most of the prior sandpit leveling still adopts a manual leveling mode, the labor intensity of workers is high, the time consumed in the leveling process is wasted, the time for competition and practice is wasted, the flatness of the manually-finished sandpit is not high, manual work is replaced by a mechanical leveling device, the high-strength work of the workers is solved, the flatness is also improved, but some defects still exist, for example, the device generally traverses the sandpit, the psychology of competition of athletes is influenced, collision danger easily occurs, the device is complex in structure and inconvenient to control, the purpose of leveling cannot be achieved only by adopting a hairbrush structure for a large pit, and local fine sand agglomeration and hardening in the sandpit are easily caused by multiple jumping, although a surface sand layer is in a leveling state, the surface sand layer is easily damaged when the athletes fall to the ground. Therefore, the above problem is a great obstacle to the improvement of the safety of the long jump sport.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problem of providing the automatic sand pit flattening device for the long jump match, which has a simple structure, can prevent athletes from damaging the athletes in the long jump process, realize the complete filling of pits, avoid the caking phenomenon of local fine sand in the sand pits, and realize automatic control.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: an automatic sand pit flattening device for long jump competitions comprises a sand pit, a springboard and a rack which is arranged at the end ground of the sand pit and extends and lays along the width direction of the sand pit, a rotating shaft is respectively arranged on the ground at the two sides of the sand pit in an extending way along the length direction of the sand pit, a plurality of rotary cutters for flattening the pit prints formed in the sand pit are sequentially arranged along the axial direction of the rotating shaft, the two rotating shafts are respectively provided with a rolling gear meshed and connected with the rack, a servo motor which respectively drives the two rolling gears to roll from two sides to the central line of the sand pit on the rack along the laying direction of the rack, and a signal control system which is used for driving the two rotating shafts to drive the rotary cutters to simultaneously move and reset from two sides of the sand pit to the central line of the sand pit along the width direction of the sand pit, the springboard is provided with a trigger element which starts the signal control system to work after the athlete steps on the springboard.
The automatic sand pit flattening device for long jump competitions comprises a signal control system and a controller, wherein the signal control system comprises two reset detection elements which are respectively arranged at two ends of a rack and used for detecting the rolling position of a rolling gear, two movement detection elements which are respectively arranged on two servo motors and used for detecting that the two servo motors are close to the central line direction of the sand pit, and the controller, after a sportsman steps on a springboard, a trigger element sends a signal to the controller, the controller receives a starting signal and then sends a delay signal for simultaneously driving a rotating shaft to rotate to the servo motors, the servo motors rotate and drive the rolling gears to simultaneously roll to the central line of the sand pit from two sides of the sand pit along the surface of the rack, when the movement detection elements detect that the rotating shaft drives a rotary cutter to reach the central line of the sand pit, the signal is sent to the controller, and the controller respectively and simultaneously sends signals, the rotating shaft drives the rotary cutters to respectively return to two sides of the sand pit, when the reset detection element detects that the two rolling gears reach the other side of the sand pit and leave the sand pit, a signal is sent to the controller, and the controller sends a signal for stopping the rotation of the rotating shaft to the servo motor.
According to the automatic sand pit flattening device for long jump competitions, the controller is connected with a signal receiving module for receiving signals sent by the handheld remote controller and a signal transmission module for sending driving signals to the servo motor, and after the controller receives starting signals sent by the handheld remote controller, the driving signals sent to be started are sent to the servo motor through the signal transmission module.
According to the automatic sand pit flattening device for long jump competitions, the accommodating areas for parking the rotating shaft and the rotary cutter are respectively arranged on the ground at the two sides of the sand pit along the length direction of the sand pit, and the accommodating areas are arranged outside the sand pit.
According to the automatic sand pit flattening device for long jump competitions, the reset detection element sends signals to the controller after detecting that the two rotating shafts and the rotary cutter respectively enter the containing area, and the controller sends signals for stopping the rotating shafts to the two servo motors.
In the automatic sand pit flattening device for long jump competitions, the accommodating area is a box structure which is arranged along the length direction of the sand pit and provided with an opening at one side close to the sand pit.
According to the automatic sand pit flattening device for long jump competitions, the reset detection element and the movement detection element are both position sensors, and the trigger element is at least one pressure sensor and is arranged between the ground and the springboard.
In the automatic sand pit flattening device for long jump competitions, the rotary cutters arranged on the two rotating shafts are arranged in a staggered manner.
The automatic sand pit flattening device for long jump competitions has the advantages that: the rack is laid on the top of the sand pit, and the rack is driven by the servo motor to rotate, so that the planeness of the arranged sand pit is effectively ensured to be high, the structure is simpler, the flatness is higher, the flexibility is good, and the installation space of the flattening device can be greatly saved; a plurality of rotary cutters that set up in succession in the pivot, can carry out whole rotary-cut to the sand in the bunker when the pivot rotates, also can the rotary-cut to deeper pit level and smooth, and cause the part of local fine sand caking sclerosis in the bunker to also can realize the purpose of pine sand to jump many times, really reached the surface sand bed and be in the leveling condition, holistic sand also can be soft moreover, make the sand in the bunker more even, it is injured to have avoided the sportsman to take place when falling to the ground, the influence to the sportsman score has been reduced. Compared with the traditional mode that a large amount of sand is driven to move by horizontal pushing and rotary cutting, the mode that the sand in the sand pit is different in height has the advantages that the sand leveling efficiency is higher, the sand leveling effect is better, and the rotary cutting knives are thinner, and gaps are reserved between the adjacent rotary cutting knives, so that the resistance of the sand to the sand leveling device is greatly reduced in the sand leveling process, and the energy consumption is saved; the signal control system is adopted to control the operation of the servo motor, the control system is started by the athlete stepping on the springboard, the automation degree is high, and the control mode of delayed signal transmission gives enough time for the athlete to leave and measure the long jump distance, thereby realizing real full-automatic control; the control mode of servo motor corotation and reversal can realize the pivot at the horizontal reciprocating motion of sand pit to the roll gear drives the pivot simultaneously and rotates the reversal when driving rotary cutter to realize corotation and return at the in-process of walking, makes two direction movements all can carry out flat husky, has improved efficiency greatly, makes the sand more even in the sand pit, has improved flat husky quality. The arrangement of the detection element enables the rotating shaft and the rotary cutter to timely stop after the sand leveling operation is finished and accurately enter the box body structure, and the control precision is greatly improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the connection structure of the rack, the rotating shaft and the rotary cutter;
FIG. 3 is a diagram of the working state of the present invention;
FIG. 4 is an enlarged view of a connection structure of the diving board and the pressure sensor;
FIG. 5 is an enlarged view of the structure in which the two shafts and the rotary cutters are staggered;
fig. 6 is a block diagram of a circuit configuration of the signal control system.
Detailed Description
The invention is further explained in detail with reference to the drawings and the specific embodiments;
as shown in fig. 1, 2, 3, 4, 5, 6, an automatic sand pit flattening device for long jump competitions comprises a sand pit 1 and a springboard 2, and also comprises a rack 3 which is arranged at the ground of the end of the sand pit 1 and extends along the width direction of the sand pit 1, a rotating shaft 4 respectively extends along the length direction of the sand pit 1 at the ground of the two sides of the sand pit 1, a plurality of rotary cutters 6 for flattening the pit prints 5 formed in the sand pit 1 are sequentially arranged along the axial direction of the rotating shaft 4, a rolling gear 7 which is meshed with the rack 3 is respectively arranged on the two rotating shafts 4, and a servo motor 8 which respectively drives the two rolling gears 7 to roll on the rack 3 from the two sides to the central line of the sand pit 1 along the laying direction of the rack 3, and the mode of driving the servo motor 8 and the rotating shaft 4 is adopted, compared with the mode of manual flattening, the mechanical flattening mode of flattening replaces the manual mode of manual flattening, greatly reducing the labor intensity of workers and saving the time for leveling the sand pit.
The rotary cutters 6 arranged on the two rotating shafts 4 are mutually staggered. When filling up the sand pile and the pit mark 5 which are stirred up in the sand pit 1, the dead angle in the sand pit 1 can be avoided, the rotary cutting and smoothing of the whole sand layer in the sand pit 1 are realized, and no missing position exists.
In order to prevent the rotating shaft 4 and the rotary cutter 6 from being exposed to wind, rain and prevent a sportsman from generating psychological obstacles when jumping, the sportsman is prevented from colliding with the body, therefore, the accommodating areas 9 for parking the rotating shaft 4 and the rotary cutter 6 are respectively arranged on the ground at the two sides of the sand pit 1 along the length direction of the sand pit 1, and the accommodating areas 9 are arranged outside the sand pit 1. The accommodating area 9 is a box structure 11 which is arranged along the length direction of the sand pit 1 and is provided with an opening 10 at one side close to the sand pit 1. The interior of the box structure 11 has a receiving cavity 12. Set up pivot 4 in jumping pit 1 one side along the length direction of jumping pit 1, compare with the tradition structure that adopts the crossbeam to traverse on jumping pit 1, hide in box structure 11 during the match, can not produce psychological obstacle to the sportsman during the match, can not take place the dangerous problem of sportsman and device collision moreover.
In order to realize the automatic control of the arrangement and flattening of the pit prints 5, the invention also comprises a signal control system for driving the two rotating shafts 4 to drive the plurality of rotary cutters 6 to simultaneously move and reset from two sides of the pit 1 to the central line direction of the pit 1 along the width direction of the pit 1, the springboard 2 is provided with a trigger element 12 for starting the signal control system to work after an athlete steps on the springboard 2, and the trigger element 12 is at least one pressure sensor and is arranged between the ground 13 and the springboard 2. The signal control system comprises two reset detection elements 14 which are respectively arranged at two ends of a rack 3 and used for detecting the rolling position of a rolling gear 7, two mobile detection elements 15 which are respectively arranged on two servo motors 8 and used for detecting the two servo motors 8 approaching the central line direction of a sand pit 1, and a controller, wherein the controller is in signal connection with a trigger element 12, a signal transmission module used for sending a driving signal to the servo motors 8 is connected to the controller, the signal transmission module is connected with a time delay control module which receives forward and reverse signals transmitted by the signal transmission module, the time delay control module is respectively connected with the two servo motors 8 which drive a rotating shaft 4 to rotate, the controller is also provided with the reset detection elements 14 used for detecting the position information of the two rolling gears 7 and the mobile detection elements 15 used for detecting the relative position distance between the two servo motors 8, after the controller receives a starting signal sent by the trigger element 12, and sending the started driving signal to the servo motor 8 through the signal transmission module. The reset detection element 14 sends a signal to the controller after detecting that the two rotating shafts 4 and the rotary cutter 6 respectively enter the accommodating area 9, and the controller sends a signal for stopping the rotation of the rotating shafts 4 to the two servo motors 8.
The concrete control process of flattening is as follows: after the athlete steps on the springboard 2, the trigger element 12 sends a signal to the controller, the controller receives a start signal and then sends a delay signal for simultaneously driving the two rotating shafts 4 to rotate to the servo motor 8, the servo motor 8 rotates and drives the rolling gears 7 to roll from two sides of the sandpit 1 to the center line of the sandpit 1 along the surface of the rack 3, when the movement detection element 15 detects that the rotating shafts 4 drive the rotary cutters 6 to reach the center line of the sandpit 1, the signal is sent to the controller, the controller respectively and simultaneously sends signals for driving the two rotating shafts 4 to rotate reversely to the servo motor 8, the rotating shafts 4 drive the rotary cutters 6 to respectively return to two sides of the sandpit 1, when the reset detection element 14 detects that the two rolling gears 7 both reach the other side of the sandpit 1 and leave the sandpit 1, the signal is sent to the controller, and the controller sends a signal for stopping the rotation of the. The reset detection element 14 and the movement detection element 15 are both position sensors.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art should understand that they can make various changes, modifications, additions and substitutions within the spirit and scope of the present invention.
Claims (6)
1. The utility model provides a long jump match is with automatic shakeout device of jumping pit, includes jumping pit and springboard, its characterized in that: the sand pit automatic leveling device further comprises racks which are arranged on the ground at the end of the sand pit and extend along the width direction of the sand pit, rotating shafts which extend along the length direction of the sand pit are respectively arranged on the ground at the two sides of the sand pit, a plurality of rotary cutters which are used for leveling a pit print formed in the sand pit are sequentially arranged along the axial direction of the rotating shafts, rolling gears which are meshed with the racks are respectively arranged on the two rotating shafts, servo motors which respectively drive the two rolling gears to roll on the racks from the two sides to the central line of the sand pit simultaneously along the laying direction of the racks, the rotary cutters arranged on the two rotating shafts are arranged in a staggered mode, the sand pit automatic leveling device further comprises a signal control system which is used for driving the two rotating shafts to drive the plurality of rotary cutters to simultaneously move and reset from the two sides of the sand pit to the central line direction of the sand pit along the width direction of the sand pit, and a trigger element which is started to work after a, the signal control system comprises two reset detection elements which are respectively arranged at two ends of a rack and used for detecting the rolling position of a rolling gear, two mobile detection elements which are respectively arranged on two servo motors and used for detecting that the two servo motors are close to the central line direction of a sand pit, and a controller, wherein after the athlete steps on a springboard, a trigger element sends a signal to the controller, the controller receives a starting signal and then sends a delay signal for simultaneously driving a rotating shaft to rotate to the servo motors, the servo motors rotate and drive the rolling gear to roll from two sides of the sand pit to the central line of the sand pit along the surface of the rack, when the mobile detection elements detect that the rotating shaft drives a rotary cutter to reach the central line of the sand pit, the controller sends signals for driving the two rotating shafts to reversely rotate to the servo motors respectively, and the rotating shaft drives the rotary cutter to respectively return to two sides of the sand pit, when the reset detection element detects that the two rolling gears reach the other side of the sand pit and leave the sand pit, a signal is sent to the controller, and the controller sends a signal for stopping the rotation of the rotating shaft to the servo motor.
2. The automatic sand pit flattening device for long jump competitions as claimed in claim 1, which is characterized in that: the controller is in signal connection with the trigger element, the signal transmission module is connected with the controller and used for sending a driving signal to the servo motor, the signal transmission module is connected with the delay control module which receives forward and reverse signals transmitted by the signal transmission module, the delay control module is respectively connected with the two servo motors which drive the rotating shafts to rotate, the controller is further provided with a reset detection element used for detecting position information of the two rolling gears and a movement detection element used for detecting the relative position distance between the two servo motors, and after the controller receives a starting signal sent by the trigger element, the controller sends a starting driving signal to the servo motors through the signal transmission module.
3. The automatic sand pit flattening device for long jump competitions as claimed in claim 1, which is characterized in that: and the ground on the two sides of the sand pit is respectively provided with an accommodating area for parking the rotating shaft and the rotary cutter along the length direction of the sand pit, and the accommodating areas are arranged outside the sand pit.
4. The automatic sand pit flattening device for long jump competitions as claimed in claim 3, which is characterized in that: and the reset detection element sends a signal to the controller after detecting that the two rotating shafts and the rotary cutter respectively enter the accommodating area, and the controller sends a signal for stopping the rotation of the rotating shafts to the two servo motors.
5. The automatic sand pit flattening device for long jump competitions as claimed in claim 4, which is characterized in that: the accommodating area is a box body structure which is arranged along the length direction of the sand pit and provided with an opening at one side close to the sand pit.
6. The automatic sand pit flattening device for long jump competitions as claimed in claim 1, which is characterized in that: the reset detection element and the movement detection element are both position sensors, and the trigger element is at least one pressure sensor and is arranged between the ground and the springboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811635239.0A CN109701256B (en) | 2018-12-29 | 2018-12-29 | Automatic sand pit flattening device for long jump competition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811635239.0A CN109701256B (en) | 2018-12-29 | 2018-12-29 | Automatic sand pit flattening device for long jump competition |
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| Publication Number | Publication Date |
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| CN109701256A CN109701256A (en) | 2019-05-03 |
| CN109701256B true CN109701256B (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811635239.0A Active CN109701256B (en) | 2018-12-29 | 2018-12-29 | Automatic sand pit flattening device for long jump competition |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113084244B (en) * | 2021-04-27 | 2023-03-31 | 深圳市聚亿鑫电子科技有限公司 | Automatic material distributing device |
| CN114588619B (en) * | 2022-04-26 | 2023-06-23 | 江西制造职业技术学院 | Automatic sand pool leveling device for long jump sports |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60119971A (en) * | 1983-11-30 | 1985-06-27 | 住友ゴム工業株式会社 | Sand leveling apparatus for sand using artificial turf |
| CN201658811U (en) * | 2010-01-14 | 2010-12-01 | 北京飞鹿体育用品有限公司 | Electric sand-flatting device |
| CN203525201U (en) * | 2013-10-31 | 2014-04-09 | 廊坊师范学院 | Long jump device for sports teaching |
| CN203935601U (en) * | 2014-07-13 | 2014-11-12 | 郭鎏 | A kind of sand pit spreading out device |
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