Shank exerciser is used in track and field events training
Technical Field
The invention relates to the technical field of sports equipment, in particular to a leg exerciser for track and field events training.
Background
Track and field sports are one of sports with strong ornamental value in sports competitions, and track and field sports mainly examine the explosive force, endurance, speed and the like of athletes, and mainly refer to sports including walking, running, jumping, throwing and the like.
The shank that uses to track and field sports at present is all than large-scale device, because every sportsman's self shape condition is different, present exercise device can't be according to individual physical stamina and the angle of height freedom adjustment backup pad and back at the exercise in-process, leads to sportsman's exercise effect than poor to the practicality of exercising the device has been reduced.
Disclosure of Invention
The invention aims to solve the following defects in the prior art that the angle of a supporting plate and a backrest cannot be freely adjusted according to the physical ability and the height of an individual during the exercise process by the conventional exercise device due to different physical conditions of each athlete, and provides a leg exerciser for track and field events training.
In order to achieve the purpose, the invention adopts the following technical scheme:
a leg exerciser for training of track and field events comprises a base plate, wherein two installation blocks are symmetrically and fixedly connected to the base plate, a fixed column is transversely and fixedly connected between the two installation blocks, a supporting plate for leaning is connected to the fixed column in a rotating mode, a back cushion is fixedly connected to the supporting plate, a moving mechanism matched with the supporting plate is arranged on the base plate, a mounting groove is formed in the base plate, a sliding mechanism used for improving stability is arranged on the mounting groove, a fixed plate is fixedly connected to the base plate in a vertical mode, an inclined supporting plate is fixedly connected to the fixed plate, one end, away from the fixed plate, of the inclined supporting plate is fixedly connected with the base plate, a fixing mechanism facilitating movement is arranged on the inclined supporting plate, two rectangular plates are symmetrically and fixedly connected to the inclined supporting plate, a rotating shaft is transversely and rotatably, and the inclined supporting plate is provided with a lifting mechanism matched with the rotating mechanism.
Preferably, moving mechanism include with bottom plate fixed connection's fixed block, sliding connection has the slide bar on the fixed block, be equipped with gliding installation cavity about being used for the slide bar on the fixed block, fixedly connected with rectangular rod on the fixed block, rectangular rod and slide bar sliding connection, be equipped with the rectangular channel that is used for connecting the rectangular rod on the slide bar.
Preferably, it rotates to be connected with on the fixed block and rotates the wheel, be equipped with on the fixed block and be used for rotating wheel pivoted and rotate the groove, rotate wheel and slide bar threaded connection, the slide bar is connected through first turning block and backup pad, slide bar and first turning block rotate to be connected, first turning block and backup pad fixed connection.
Preferably, slide mechanism is including transversely setting up the horizontal pole on the mounting groove, sliding connection has the sliding sleeve on the horizontal pole, the rotation is connected with the dwang on the sliding sleeve, the one end that the sliding sleeve was kept away from to the dwang is rotated and is connected with the second turning block, second turning block and backup pad fixed connection.
Preferably, a first spring is arranged on the cross rod in an encircling mode, and two ends of the first spring are fixedly connected with the inner wall of the mounting groove and the sliding sleeve respectively.
Preferably, the fixing mechanism comprises a cushion fixedly connected with an inclined supporting plate, supporting handles are arranged on two sides of the cushion and fixedly connected with the inclined supporting plate.
Preferably, the rotating mechanism comprises a load-bearing block fixedly connected with the rotating shaft, the two ends of the rotating shaft are fixedly connected with fixing rods, and each fixing rod is rotatably connected with a pedal.
Preferably, elevating system includes the supporting shoe with fagging fixed connection, sliding connection has the carriage release lever on the supporting shoe, be equipped with on the supporting shoe and be used for gliding slip chamber from top to bottom of carriage release lever, fixedly connected with rack plate on the carriage release lever, rotating connection has the installation pole on the supporting shoe, fixedly connected with and the gear that rack plate cooperation was used on the installation pole, gear and supporting shoe rotate to be connected, gear and rack plate meshing are connected.
Preferably, one end of the moving rod, which is far away from the supporting block, is slidably connected with a limiting rod, a second spring is arranged on the limiting rod in a surrounding manner, two ends of the second spring are respectively and fixedly connected with the limiting rod and the moving rod, a moving block is fixedly connected to the limiting rod, a connecting rod is transversely and fixedly connected to the moving block, and a friction wheel is rotatably connected to the connecting rod.
Compared with the prior art, the invention has the beneficial effects that:
1. the messenger rotates the wheel and is rotating the inslot rotation, rotate wheel and slide bar threaded connection, the rectangle pole is when rotating the wheel pivoted, the rotation of slide bar has been restricted, thereby make the slide bar can be along with the rotation of rotating the wheel, and take place to slide in the installation cavity, just can change the vertical height of slide bar upper end, the slide bar removes the back, will take place relative rotation with first rotation piece, make inclination between fixed connection's backup pad and the horizontal plane on the first rotation piece, thereby can be according to the angle of user's personal physical stamina and height freedom adjustment backup pad and cushion, make user's exercise effect than better, the practicality of exercise device has also been improved simultaneously.
2. When contained angle between backup pad and bottom plate changes, fixed connection's second turning block in the backup pad will take place relative rotation with the dwang, and the sliding sleeve will take place relative slip with the horizontal pole simultaneously, and fixed connection's first spring will take place deformation on the sliding sleeve, and the dwang can rotate along with the backup pad rotation, has certain supporting role to the backup pad, when the backup pad takes place vibrations in the use, the elasticity of first spring also can reach the effect that slows down the backup pad vibrations.
Drawings
FIG. 1 is a schematic front view of a leg exerciser for track and field events training according to the present invention;
fig. 2 is a schematic top view of a portion of the inclined strut plate according to the present invention;
FIG. 3 is a schematic view of a portion of the enlarged structure of A in FIG. 1;
FIG. 4 is a schematic view of a portion of B in FIG. 1;
fig. 5 is a partially enlarged structural diagram of C in fig. 1.
In the figure: the device comprises a base plate 1, a rectangular rod 2, a fixed block 3, a rotating wheel 4, a sliding rod 5, a first rotating block 6, a back cushion 7, a supporting plate 8, a second rotating block 9, a mounting block 10, a fixed column 11, a supporting handle 12, a cushion 13, a weight carrier 14, a fixed rod 15, a pedal 16, a rectangular plate 17, a fixed plate 18, an inclined supporting plate 19, a rotating shaft 20, a moving rod 21, a moving block 22, a friction wheel 23, a sliding sleeve 24, a mounting groove 25, a first spring 26, a cross rod 27, a rotating rod 28, a mounting rod 29, a gear 30, a supporting block 31, a limiting rod 32, a rack plate 33, a connecting rod 34 and a second spring 35.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, a leg exerciser for track and field events training comprises a base plate 1, two mounting blocks 10 are symmetrically and fixedly connected to the base plate 1, a fixing column 11 is transversely and fixedly connected between the two mounting blocks 10, a supporting plate 8 for leaning is rotatably connected to the fixing column 11, a back cushion 7 is fixedly connected to the supporting plate 8, a moving mechanism matched with the supporting plate 8 for use is arranged on the base plate 1, a mounting groove 25 is arranged on the base plate 1, a sliding mechanism for improving stability is arranged on the mounting groove 25, a fixing plate 18 is vertically and fixedly connected to the base plate 1, an inclined supporting plate 19 is fixedly connected to the fixing plate 18, one end of the inclined supporting plate 19, far away from the fixing plate 18, is fixedly connected to the base plate 1, a fixing mechanism facilitating movement is arranged on the inclined supporting plate 19, two rectangular plates 17 are symmetrically and fixedly, the rotating shaft 20 is provided with a rotating mechanism, and the inclined supporting plate 19 is provided with a lifting mechanism matched with the rotating mechanism.
The moving mechanism comprises a fixed block 3 fixedly connected with the bottom plate 1, a sliding rod 5 is connected on the fixed block 3 in a sliding manner, an installation cavity used for the sliding rod 5 to slide up and down is arranged on the fixed block 3, a rectangular rod 2 is fixedly connected on the fixed block 3, the rectangular rod 2 is connected with the sliding rod 5 in a sliding manner, a rectangular groove used for connecting the rectangular rod 2 is arranged on the sliding rod 5, the sliding rod 5 can move in the vertical direction in the installation cavity, when the sliding rod 5 moves, the rectangular groove arranged on the sliding rod 5 can slide relative to the rectangular rod 2, the rectangular rod 2 can limit the rotation of the sliding rod 5 due to the rectangular cross section of the rectangular rod 2, a rotating wheel 4 is connected on the fixed block 3 in a rotating manner, a rotating groove used for rotating the rotating wheel 4 is arranged on the fixed block 3, the rotating wheel 4 is in threaded connection with the sliding rod 5, and the sliding rod 5 is, slide bar 5 and first rotation piece 6 rotate to be connected, first rotation piece 6 and 8 fixed connection of backup pad, when rotating the groove and taking place the relative slip on wheel 4 and the fixed block 3, rotate wheel 4 and 5 threaded connection of slide bar, under the limiting action of rectangular bar 2, slide bar 5 just can not take place to rotate, along with the rotation of rotating wheel 4, slide bar 5 will take place to slide in the installation cavity, 5 one end of slide bar will take place the relative rotation with first rotation piece 6, fixed connection's backup pad 8 will use fixed column 11 to take place to rotate as the centre of a circle on first rotation piece 6 simultaneously, thereby can change the contained angle between backup pad 8 and the bottom plate 1, thereby can adjust the inclination of backup pad 8 according to actual need, be favorable to user's use.
The sliding mechanism comprises a cross rod 27 transversely arranged on the mounting groove 25, the cross rod 27 is connected with a sliding sleeve 24 in a sliding manner, the sliding sleeve 24 is connected with a rotating rod 28 in a rotating manner, one end, far away from the sliding sleeve 24, of the rotating rod 28 is connected with a second rotating block 9 in a rotating manner, the second rotating block 9 is fixedly connected with the supporting plate 8, along with the rotation of the supporting plate 8, the second rotating block 9 fixedly connected with the supporting plate 8 rotates relative to the rotating rod 28, because the length of the rotating rod 28 is unchanged, the vertical distance between the second rotating block 9 and the bottom plate 1 is changed, the rotating rod 28 rotates relative to the sliding sleeve 24, meanwhile, the sliding sleeve 24 slides relative to the cross rod 27, the rotating rod 28 has a certain supporting effect on the supporting plate 8, a first spring 26 is arranged on the cross rod 27 in a surrounding manner, two ends of the first spring 26 are respectively fixedly connected with the inner wall, simultaneously, the sliding sleeve 24 is when sliding, deformation will take place for first spring 26, when backup pad 8 takes place vibrations in the use, under the elastic force effect of first spring 26, can slow down the vibrations of backup pad 8, make when using, it is more stable, fixed establishment include with 19 fixed connection's of fagging cushion 13, cushion 13 both sides all are equipped with the support handle 12, support handle 12 and 19 fixed connection of fagging, after adjusting the inclination of backup pad 8, the user can sit on cushion 13, two support handles 12 are held respectively to both hands, use.
The rotating mechanism comprises a weight bearing block 14 fixedly connected with the rotating shaft 20, fixing rods 15 are fixedly connected with two ends of the rotating shaft 20, a pedal 16 is rotatably connected with each fixing rod 15, the rotating shaft 20 can rotate through the pedal 16 rotatably connected with the pedal fixing rod 15 in the use process, meanwhile, the weight bearing block 14 fixedly connected with the rotating shaft 20 can also rotate, as the weight bearing block 14 has a certain weight, the leg of a user can be exercised in the rotating process of the weight bearing block 14, the lifting mechanism comprises a supporting block 31 fixedly connected with an inclined supporting plate 19, a moving rod 21 is slidably connected with the supporting block 31, a sliding cavity for the moving rod 21 to slide up and down is arranged on the supporting block 31, a rack plate 33 is fixedly connected with the moving rod 21, a mounting rod 29 is rotatably connected with the supporting block 31, and a gear 30 matched with the rack plate 33 is fixedly connected with the mounting rod 29, the gear 30 is rotatably connected with the supporting block 31, the gear 30 is engaged with the rack plate 33, the mounting rod 29 is rotated, the gear 30 is rotated relative to the supporting block 31 due to the fixed connection between the mounting rod 29 and the gear 30, the gear 30 is engaged with the rack plate 33, the rack plate 33 is moved in the vertical direction during the rotation of the gear 30, and the moving rod 21 fixedly connected with the rack plate 33 slides in the sliding cavity, so that the distance between the upper end of the moving rod 21 and the load-carrying block 14 can be changed.
A limiting rod 32 is slidably connected to one end of the moving rod 21 far away from the supporting block 31, a second spring 35 is arranged on the limiting rod 32 in a surrounding manner, two ends of the second spring 35 are respectively fixedly connected with the limiting rod 32 and the moving rod 21, a moving block 22 is fixedly connected to the limiting rod 32, a connecting rod 34 is fixedly connected to the moving block 22 in a transverse direction, a friction wheel 23 is rotatably connected to the connecting rod 34, when the moving rod 21 moves upwards, the distance between the friction wheel 23 arranged at the upper end of the moving rod 21 and the load-bearing block 14 is changed, so that the contact area between the friction wheel 23 and the load-bearing block 14 can be changed, the leg exercise intensity of a user can be adjusted, because the moving block 22 is fixedly connected with the limiting rod 32, when the friction wheel 23 and the load-bearing block 14 are vibrated after contacting, the limiting rod 32 slides relative to the moving rod 21, and the second spring, thereby, the vibration of the friction wheel 23 can be reduced, and the service life of the friction wheel 23 is prolonged.
In the invention, when in use, the rotating wheel 4 is rotated manually, because the rotating wheel 4 is in threaded connection with the sliding rod 5, and the rectangular rod 2 on the fixed block 3 slides in the rectangular groove on the sliding rod 5, the rectangular rod 2 can limit the sliding rod 5 to rotate, so that when the rotating wheel 4 rotates, the sliding rod 5 can move upwards, the sliding rod 5 and the first rotating block 6 rotate relatively, one end of the supporting plate 8 rotates upwards, the supporting plate 8 and the fixed column 11 rotate relatively, thereby changing the included angle between the supporting plate 8 and the bottom plate 1, after the rotating angle of the supporting plate 8 is adjusted, a user can sit on the cushion 13 and lean against the back cushion 7 on the supporting plate 8, hold the supporting handle 12, and tread the pedals 16 rotatably connected on the fixed rod 15 with two feet, so that the rotating shaft 20 rotates along with the fixed rod 15, because the weight bearing block 14 is fixedly connected to the rotating shaft 20, the weight bearing block 14 can also rotate, and because the weight bearing block 14 has a certain weight, the weight bearing block 14 can rotate through the pedaling of a user, so that the leg of the user can be exercised, and then the contact area between the friction wheel 23 and the weight bearing block 14 can be changed by adjusting the height of the friction wheel 23, so that the friction force between the friction wheel 23 and the weight bearing block 14 can be changed, and the effect of changing the exercise intensity of the leg of the user can be achieved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.