CN112718440B

CN112718440B - Automatic device of paving of jumping pit

Info

Publication number: CN112718440B
Application number: CN202110127284.0A
Authority: CN
Inventors: 胡鲜花; 杨早梅
Original assignee: Chongqing Vocational Institute of Engineering
Current assignee: Chongqing Vocational Institute of Engineering
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-11-30
Anticipated expiration: 2041-01-29
Also published as: CN112718440A

Abstract

The invention relates to the technical field of sports equipment, and provides an automatic long jump leveling device for a sand pit, which aims to solve the problem that hard blocks in the sand pit cannot be loosened when the existing push plate is used for leveling the sand pit in the prior art, and comprises a push plate, wherein the push plate is connected with a driving rod, and a plurality of comb teeth are intermittently arranged at the lower part of the push plate; the push plate is also connected with a primary sieve plate, the primary sieve plate is provided with a plurality of first sieve holes, the push plate is provided with a plurality of second sieve holes, and the aperture of each second sieve hole is smaller than that of each first sieve hole; a plurality of crushing rods are arranged on the surface of the primary sieve plate facing the push plate, and one end of each crushing rod facing the push plate is a wedge-shaped end; be provided with the telescopic link between primary sieve board and the push pedal, the cover is equipped with the elastic component on the telescopic link, and the both ends of elastic component are connected with push pedal and primary sieve board respectively.

Description

Automatic device of paving of jumping pit

Technical Field

The invention relates to the technical field of sports equipment, in particular to an automatic paving device for a long jump of a sand pit.

Background

Long jump, also known as rush jump, is a track and field sports jump project, which is composed of the actions of running up, taking off, jumping and landing. The athlete or student runs along a straight line, takes off the jump with a single foot along the front and the back of the jumping board, and then falls down in a sand pit with double feet after the jumping stage, and the ranking is determined according to the jumping distance during the competition. In the prior long jump training competition, most long jumps are realized by arranging a sand pit on the ground, fine sand is placed in the sand pit, when an athlete jumps on the fine sand, the sand pit is left, and the result of measuring the sand pit is the long jump result.

However, after each long jump, a pit print is left in the sandpit, and after a plurality of long jumps, a plurality of pit prints in the sandpit are left, so that the measurement of the next pit print is influenced. Therefore, in order to ensure the correct measurement of the next match result, the sand pits need to be frequently re-leveled so as to ensure that clear pit marks can be left after long jump. At present, when the sand pit is paved and leveled, a manual leveling mode is still adopted, a worker repeatedly pushes sand in the sand pit by using a push plate with comb teeth on the lower part, the pit printing place is filled and leveled under the action of the push plate, and a sand pile is leveled until the whole sand pit becomes a leveling state again. However, after a plurality of jumps, local fine sand in the sand pit may be agglomerated and hardened due to the impact of the jumps, and workers can push the sand layer flat in the process of pushing the sand, but cannot loosen the hardened sand block, so that when the athletes fall to the ground and fall to a place with the hard block, safety accidents are easy to happen and the athletes are injured.

Disclosure of Invention

The invention aims to provide an automatic bunk long jump paving device to solve the problem that in the prior art, when an existing push plate is used for paving a bunk, hard blocks in the bunk cannot be loosened.

The basic scheme provided by the invention is as follows: an automatic sand pit long jump paving device comprises a push plate, wherein the push plate is connected with a driving rod, and a plurality of comb teeth are intermittently arranged at the lower part of the push plate;

the push plate is also connected with a primary sieve plate, the primary sieve plate is provided with a plurality of first sieve holes, the push plate is provided with a plurality of second sieve holes, and the aperture of each second sieve hole is smaller than that of each first sieve hole; a plurality of crushing rods are arranged on the surface of the primary sieve plate facing the push plate, and one end of each crushing rod facing the push plate is a wedge-shaped end; be provided with the telescopic link between primary sieve board and the push pedal, the cover is equipped with the elastic component on the telescopic link, and the both ends of elastic component are connected with push pedal and primary sieve board respectively.

The basic scheme has the working principle and the beneficial effects that: in the scheme, the primary screening plate is arranged for primarily screening sand in the sand pit, in the primary screening process, for loose sand, the sand pile is pushed flat, and the pit mark is filled with sand; for the sand blocks, the sand blocks with the size smaller than the first sieve holes enter between the primary sieve plate and the push plate through the first sieve holes, the sand blocks with the size smaller than the first sieve holes leak out through the second sieve holes in the push plate and fall back into the sand pit, the sand blocks with the size larger than the first sieve holes are blocked in front of the primary sieve plate, and therefore, in the moving process of the device, in the sand pit through which the device moves, the sand pile is pushed flat, the pit mark is filled flat, the sand blocks with the overlarge size are left in front of the primary sieve plate, the sand blocks with the moderate size enter between the primary sieve plate and the push plate, and the sand blocks with the small size pass through the primary sieve plate and the push plate and then fall back into the sand pit; in the process, because the telescopic link that sets up between primary screen plate and the push pedal is gone up the cover and is had the elastic component, consequently in the use earlier stage, because the sand mass that leaves behind the primary screen plate in front is less, and the primary screen plate still keeps the state of relative stillness with the push pedal under the supporting role of elastic component this moment.

Along with the continuation of device removes, the sand lump that leaves before the first sieve board is more and more, the resistance that first sieve board received just also is bigger and bigger at the removal in-process, the resistance that first sieve board received has been greater than the elastic component and has given behind the thrust of first sieve board, along with the continuation of device removes, the direction motion that first sieve board will be close to the push pedal under the resistance of sand lump, so broken pole moves towards the push pedal, the sand lump that will be in between first sieve board and the push pedal is hit the bits of broken glass, hit garrulous sand lump just also can follow the second sieve mesh that pushes away on the board and spill, fall back in the sand pit.

And after the sand lump that leaves before first sieve diminishes, the resistance that first sieve received will be less than the thrust that the elastic component that receives gave, then under the effect of elastic component thrust, first sieve can be towards the direction motion of keeping away from the push pedal, drive the direction motion of broken pole orientation keeping away from the push pedal, space grow between push pedal and the first sieve, the moderate sand lump of size will carry out the space between first sieve and the push pedal again after the first sieve mesh, will be broken by broken pole again afterwards, so reciprocal, still hit the bits of broken glass to the sand lump at the in-process of laying flat to the sand pit, the loose operation in sand pit has been realized. And the large sand blocks left in front of the primary screen plate finally need to be manually scattered and then put into the sand pit again.

Compare with the mode that utilizes the push pedal to pave the sand pit among the prior art, in this scheme, still set up the first sieve before the push pedal, on the one hand, the cooperation that utilizes first sieve and push pedal has carried out the secondary and has just sieved to the sand, the in-process of realizing the sand pit is paved has still realized the looseness to the sand, the softness in sand pit has been guaranteed, can avoid because the sand piece leads to the sportsman to appear spraining the safety accident such as foot or fall down, on the other hand, still utilize the cooperation of elastic component and broken pole, the realization is to the intermittent type nature of push pedal and the first sieve piece and hit the bits of broken glass operation, the looseness of sand has further been realized, the softness degree of sand pit has been improved.

The first preferred scheme is as follows: preferably, the crushing rod is disposed opposite to the second sieve holes of the push plate, and the wedge-shaped end of the crushing rod can be inserted into the second sieve holes. Has the advantages that: in this scheme, through the mode that sets up crushing pole and second sieve mesh relatively, after the motion of crushing pole towards the push pedal, the second sieve mesh can be inserted to crushing pole, the crushing pole that inserts the second sieve mesh on the one hand can dredge the second sieve mesh, avoid the second sieve mesh to appear blockking up, on the other hand, if crushing pole sets up with other positions of push pedal relatively, when crushing pole and push pedal contact, the wedge end of crushing pole will cause the damage to the push pedal, consequently set up crushing pole and second sieve mesh relatively and can also avoid crushing pole to cause the damage to the push pedal.

The preferred scheme II is as follows: preferably, the distance between adjacent teeth is the same as the diameter of the second screen. Has the advantages that: in this scheme, after the aperture that is provided with the second sieve mesh through the interval with adjacent broach is the same, can avoid the husky piece between first sieve and the push pedal to leave from between the broach of push pedal lower part to guarantee can be to push pedal and the husky piece between the first sieve whole carry out the breakage, and then guaranteed the loose effect to the husky piece.

The preferable scheme is three: preferably, the device further comprises a driving mechanism, wherein the driving mechanism is connected with the driving rod, and the driving mechanism can drive the driving rod to reciprocate. Has the advantages that: in this scheme, drive the actuating lever through the actuating mechanism who sets up, utilize actuating mechanism driven mode to replace manual drive, realized the automatic operation that the jumping pit was paved.

The preferable scheme is four: preferably as the third preferred scheme, the driving mechanism comprises an installation plate and a rack which are parallel to the moving direction of the driving rod, the installation plate and the rack are arranged in parallel, the installation plate is connected with a driving motor in a sliding manner, the driving motor is connected with a connecting shaft, a gear meshed with the rack is arranged on the connecting shaft, and the connecting end of the connecting shaft is connected with the driving rod. Has the advantages that: in this scheme, through the cooperation of the gear on the driving motor who sets up and the rack, realize the removal of gear on the rack to can drive driving motor and remove along the mounting panel, thereby drive the connecting axle motion, thereby drive the actuating lever and remove, the motion of push pedal and first sieve has just also been realized to the removal of actuating lever, simple structure.

The preferable scheme is five: preferably, the crushing rod is circumferentially provided with a plurality of protrusions. Has the advantages that: in this scheme, through setting up the arch on to broken pole, after the protruding contact on husky piece and the broken pole, the arch also can hit the bits of broken glass to husky piece to strengthened broken rod and to the garrulous effect of hitting of husky piece, guaranteed that husky piece obtains fully hitting the bits of broken glass.

The preferable scheme is six: preferably, the lower ends of the primary sieve plate and the push plate are wedge-shaped ends. Has the advantages that: considering when using, the lower extreme of first sieve board and push pedal need insert in the jumping pit, consequently, in this scheme, be provided with the convenient jumping pit of first sieve board and push pedal with the lower extreme of first sieve board and push pedal and insert the jumping pit.

Drawings

Fig. 1 is a top view of an embodiment of an automatic bunk jumping and paving device according to the present invention;

FIG. 2 is a front view of the primary screen deck and the push plate of FIG. 1;

figure 3 is a left side view of the pusher plate of figure 2.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the sand pit comprises a sand pit 1, a primary sieve plate 2, a crushing rod 21, a push plate 3, comb teeth 30, a second sieve hole 33, an expansion rod 4, a driving rod 41, a driving motor 5, a connecting shaft 51, a mounting plate 6 and a rack 7.

The embodiment is basically as shown in the attached figures 1 and 2: an automatic sand pit long jump paving device comprises a push plate 3, wherein the push plate 3 is connected with a driving rod 41, the driving rod 41 is positioned at the top of the push plate, a plurality of comb teeth 30 are intermittently arranged at the lower part of the push plate 3, and the lower ends of the comb teeth 30 and the push plate are both wedge-shaped ends; in this embodiment, push pedal 3 is the rectangular shape board that length and 1 width of jumping pit match, and push pedal 3 moves along 1 length direction in the jumping pit, fills and levels up operation to jumping pit 1.

The push plate 3 is also connected with a primary sieve plate 2, the lower end of the primary sieve plate 2 is a wedge-shaped end, the primary sieve plate 2 is a rectangular plate with the same size as the push plate 3, the primary sieve plate 2 is provided with a plurality of first sieve holes, as shown in fig. 3, the push plate 3 is provided with a plurality of second sieve holes 33, the aperture of each second sieve hole 33 is smaller than that of each first sieve hole, and the distance between every two adjacent comb teeth 30 is the same as that of each second sieve hole 33; the crushing rod 21 is disposed opposite to the second sieve holes 33 of the push plate, and the wedge-shaped end of the crushing rod 21 is inserted into the second sieve holes 33 after the crushing rod 21 moves.

First sieve 2 is provided with a plurality of crushing poles 21 on the surface towards push pedal 3, and circumference is provided with a plurality of archs on the crushing pole 21, and crushing pole 21 is the wedge end towards the one end of push pedal 3, in this embodiment to use first sieve 2 to be located push pedal 3 left sides as the example, then set up crushing pole 21 on first sieve 2's the right flank, and the right-hand member of crushing pole 21 is the wedge end.

Be provided with telescopic link 4 between first sieve 2 and the push pedal 3, the elastic component is equipped with to the cover on telescopic link 4, and the both ends of elastic component are connected with push pedal 3 and first sieve 2 respectively, and in this embodiment, the elastic component adopts the pressure spring.

Still including actuating mechanism, actuating mechanism is connected with actuating lever 41, actuating mechanism can drive actuating lever 41 reciprocating motion, it is specific, in this embodiment, actuating mechanism includes mounting panel 6 and rack 7 parallel with actuating lever 41 moving direction, mounting panel 6 and rack 7 parallel arrangement, 6 sliding connection in mounting panel has driving motor 5, it is specific, the spout has been seted up along length direction to mounting panel 6, driving motor 5's bottom is provided with the slider that matches with the spout, slider and spout sliding connection, driving motor 5 is connected with connecting axle 51, be provided with the gear with rack 7 meshing on the connecting axle 51, the link of connecting axle 51 is connected with actuating lever 41, it is preferred, actuating lever 41 can be dismantled with the link and be connected, in this embodiment, the one end that actuating lever 41 and connecting axle 51 are connected is provided with connecting axle 51 complex connecting hole.

The specific implementation process is as follows: before the use, the primary screen plate 2 and the push plate 3 are placed outside the sand pit 1 to avoid influencing the long jump of athletes, and the connecting plate and the rack 7 are fixed on one side of the sand pit 1. When the sand pit is used, the primary sieve plate 2 and the push plate 3 are inserted into the right end of the sand pit 1, and the connecting end of the connecting shaft 51 is inserted into the connecting hole. The driving motor 5 is started, the driving motor 5 drives the connecting shaft 51 to rotate anticlockwise, the gear on the connecting shaft 51 rotates anticlockwise, and the rack 7 is fixed, so that the gear can slide leftwards along the rack 7 in the rotating process, the driving motor 5 is driven to slide leftwards, the connecting shaft 51 slides leftwards, and the push plate 3 is driven to slide leftwards.

In the sliding process, sand at the left end of the sand pit 1 can sequentially pass through the primary sieve plate 2 and the push plate 3 and fall to the right end of the sand pit 1. For loose sand, the sand pile is pushed flat, and the pit mark is filled with sand; for the sand blocks, the sand blocks with the size smaller than the first sieve holes enter between the primary sieve plate 2 and the push plate 3 through the first sieve holes, the sand blocks with the size smaller than the first sieve holes can leak out through the second sieve holes 33 on the push plate 3 and fall back into the sand pit 1, the sand blocks with the size larger than the first sieve holes are blocked in front of the primary sieve plate 2, therefore, in the process that the drive motor 5 drives the push plate 3 to move leftwards, the sand pile is pushed flat, the pit mark is filled flat, the sand blocks with the overlarge size are left at the left end of the primary sieve plate 2, the sand blocks with the moderate size enter between the primary sieve plate 2 and the push plate 3, and the sand blocks with the small size pass through the primary sieve plate 2 and the push plate 3 and then fall back to the right end of the sand pit 1; in the process, because the telescopic rod 4 arranged between the primary screen plate 2 and the push plate 3 is sleeved with the elastic part, in the earlier stage of use, the sand block left in front of the primary screen plate 2 is small, and at the moment, the primary screen plate 2 still keeps a relatively static state with the push plate 3 under the supporting action of the elastic part.

Along with driving motor 5's continuation removal, the sand cake that leaves on first sieve board 2 left side is more and more, first sieve board 2 is just also bigger and bigger at the resistance that removes the in-process and receives, after the resistance that first sieve board 2 received has been greater than the elastic component and has given first sieve board 2's thrust, along with the continuation of device removes, first sieve board 2 will be towards the direction motion that is close to push pedal 3 under the resistance of sand cake, then broken pole 21 moves towards push pedal 3, will be in the sand cake between first sieve board 2 and the push pedal 3 and break, the second sieve mesh 33 that just also can follow the push pedal 3 of broken sand cake leaks, fall back in husky hole 1.

And after the sand piece that leaves before first sieve 2 diminishes, the resistance that first sieve 2 received will be less than the thrust that the elastic component that receives gave, then under the effect of elastic component thrust, first sieve 2 can move towards the direction of keeping away from push pedal 3, drive crushing pole 21 towards the direction of keeping away from push pedal 3 and move, the space grow between push pedal 3 and first sieve 2, the moderate sand piece of size will carry out the space between first sieve mesh again and first sieve 2 and push pedal 3, will be hit the bits of broken glass by crushing pole 21 again afterwards, so reciprocal, still hit the bits of broken glass at the in-process of laying level to sand pit 1, the loose operation of sand pit 1 has been realized.

The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides an automatic device of paving of jumping of sand pit, includes the push pedal, and the push pedal is connected with the actuating lever, push pedal lower part intermittent type is provided with a plurality of broach, its characterized in that: the push plate is also connected with a primary sieve plate, the primary sieve plate is provided with a plurality of first sieve holes, the push plate is provided with a plurality of second sieve holes, and the aperture of each second sieve hole is smaller than that of each first sieve hole; a plurality of crushing rods are arranged on the surface of the primary screening plate facing the push plate, and one end of each crushing rod facing the push plate is a wedge-shaped end; the primary sieve plate is connected with the primary sieve plate through a telescopic rod, an elastic piece is sleeved on the telescopic rod, and two ends of the elastic piece are respectively connected with the push plate and the primary sieve plate.

2. The automatic bunk jumping and paving device of claim 1, wherein: the crushing rod is arranged opposite to the second sieve hole in the push plate, and the wedge-shaped end of the crushing rod can be inserted into the second sieve hole.

3. The automatic bunk jumping and paving device of claim 1, wherein: the distance between adjacent comb teeth is the same as the aperture of the second sieve pore.

4. The automatic bunk jumping and paving device of claim 1, wherein: the driving mechanism is connected with the driving rod and can drive the driving rod to reciprocate.

5. The automatic bunk jumping and paving device of claim 4, wherein: actuating mechanism includes mounting panel and the rack parallel with actuating lever moving direction, the mounting panel with rack parallel arrangement, sliding connection has driving motor on the mounting panel, driving motor is connected with the connecting axle, be provided with on the connecting axle with rack toothing's gear, the link of connecting axle with the actuating lever is connected.

6. The automatic bunk jumping and paving device of claim 1, wherein: the crushing rod is circumferentially provided with a plurality of sharp protrusions.

7. The automatic bunk jumping and paving device of claim 1, wherein: the lower ends of the primary sieve plate and the push plate are wedge-shaped ends.