CN201823268U

CN201823268U - Super-isometric discus special strength exerciser

Info

Publication number: CN201823268U
Application number: CN2010205111402U
Authority: CN
Inventors: 孙长良; 宋枝宸; 刘滨羿; 侯政治; 夏国滨
Original assignee: Harbin Normal University
Current assignee: Harbin Normal University
Priority date: 2010-08-31
Filing date: 2010-08-31
Publication date: 2011-05-11
Anticipated expiration: 2020-08-31

Abstract

The utility model relates to a discus special strength exerciser, in particular to a super-isometric discus special strength exerciser, aiming at solving the problem that throwing-related active strength exerting muscles are not centrifugally elongated before the throwing-related active strength exerting muscles exert strength when the existing exercise means are used for discus special strength exercises. A retractable elastic support is fixedly connected with an annular plate and a sliding plate. A pipe body is arranged on the annular plate. Rollers are arranged in the pipe body in a rolling way. One end of a connecting rod is fixedly connected with the wheel carriers of the rollers and the other end of the connecting rod is flexibly connected with a handle through a connecting rod threaded sleeve. One end of a steel wire is fixedly connected with the wheel carriers of the rollers and the other end of the steel wire is fixedly connected with a fixed object through a second spring. One end of a traction belt is fixedly connected with the sliding plate and the other end of the traction belt is wound on a traction belt wheel. A driving motor is connected with a driven shaft through a transmission mechanism. A first contact switch is fixedly installed on a front fixed plate and the sliding plate and a second contact switch is fixedly installed on a rear fixed plate and the sliding plate. The super-isometric discus special strength exerciser is used for discus special strength exercises.

Description

Superfine long discus specific strength exercising machine

Technical field

The utility model relates to a kind of discus specific strength exercising machine.

Background technology

At present, discus specific strength exercise remove adopt barbell for sleeping in push away, crouch draw and chest expanding exercise means, the main employing waved sheet (brandishing the throwing cake imitation exercise of disc), drawn modes such as rubber band and throwing weight to carry out strengthening exercise.And adopt above-mentioned exercise means to have following problem: promptly when the weight of waving sheet or throwing is excessive, cause practitioner's centre of body weight shakiness easily, other muscle group of throwing outside the muscle group of initiatively exerting oneself participates in too much, cause the throwing action distortion, angle out of strength is difficult for grasping when drawing rubber band, and effectively firmly distance is short, throw the firmly preceding not centrifugal elongation in advance of the muscle group of initiatively exerting oneself, training effect is not good enough.

The utility model content

The purpose of this utility model provides a kind of superfine long discus specific strength exercising machine, wave sheet solve to adopt, draw rubber band and throw modes such as weight when carrying out the exercise of discus specific strength, practitioner's centre of body weight shakiness, other muscle group of throwing outside the muscle group of initiatively exerting oneself participates in too much, cause the throwing action distortion, angle out of strength is difficult for grasping when drawing rubber band, and effectively firmly distance is short, throw the firmly preceding not centrifugal elongation in advance of the muscle group of initiatively exerting oneself, the problem that training effect is not good enough.

The utility model is to solve the problems of the technologies described above the technical scheme of taking to be: exercising machine of the present utility model comprises annular slab, extendible elastic support, base plate, slide plate, first spring, front shoe, two fixed bodies, drive motors, transmission mechanism, traction belt, traction belt wheel, support, driven shaft, first contact switch, second contact switch, gauge tap, rear fixed plate, handle, connecting rod, connecting rod swivel nut, steel wire, second spring, body and two rollers; The upper end of extendible elastic support and the lower surface of annular slab are affixed, the rear end of annular slab is downward-sloping, the lower surface of annular slab and the angle between the horizontal plane are 37 ° ± 3 °, the aperture of the centre bore of annular slab is 75cm-85cm, the diameter of the excircle end face of annular slab is 240cm-260cm, body is bent into spiral-shaped, body is arranged on the last ring surface of annular slab and the two removably connects, the external port of body to the line of centres of annular slab and peak to the angle between the center line of minimum point of annular slab is 30 °, a side adjacent with the lateral wall of annular slab on the tube wall of body is provided with opening, opening is offered along the total length of body, two rollers roll and are arranged on the inwall of body, and be positioned at a side adjacent with the centre bore of annular slab, one end of connecting rod and the wheel carrier of two rollers are affixed, the other end of connecting rod passes the outside that opening on the body is arranged on body, the cross section of connecting rod is circular, be processed with screw thread on the other end sidewall of connecting rod, connecting rod is threaded with the connecting rod swivel nut, the connecting rod swivel nut is connected with handle elasticity, one end of steel wire and the wheel carrier of two rollers are affixed, the other end of steel wire passes the inner end mouth of body and affixed with an end of second spring, the other end and the fixed object of second spring are affixed, base plate and ground are affixed, be disposed with front shoe and slide plate from A-P on the base plate, front shoe and base plate are affixed, slide plate and base plate are slidingly matched, respectively be fixed with a fixed body on front shoe and the slide plate, connect by first spring between two fixed bodies, extendible elastic support is arranged on the slide plate and is positioned at the back of fixed body, the lower end and the slide plate of extendible elastic support are affixed, support is arranged on the rear side of base plate, support and ground are affixed, the two ends of driven shaft respectively are rotationally connected by a bearing and support, be fixed with a traction belt wheel on the driven shaft, one end of traction belt and the rear end of slide plate are affixed, the other end of traction belt is wrapped on the traction belt wheel, be in transmission connection by transmission mechanism between the output shaft of drive motors and the driven shaft, two first contacts of first contact switch are oppositely arranged, and on the rear end face of front shoe and respectively be fixed with one first contact of first contact switch on the front end face of slide plate, gauge tap is packed on the slide plate, the rear end of slide plate is provided with breach, rear fixed plate is packed on the base plate and is positioned at the indentation, there of slide plate, two second contacts of second contact switch are oppositely arranged, one second contact of second contact switch is packed on the front end face of rear fixed plate, another second contact of second contact switch is packed on the slide plate, and is positioned on the corresponding end face of rear fixed plate.

The beneficial effects of the utility model are: the utility model is according to correlation theories such as sport biomechanics and athletic physiologies, and in conjunction with the characteristics of discus specific strength exercise, make the sportsman when the discus specific strength is practised, can strengthen the exercise resistance, initiatively muscle group firmly accurately, centre of body weight is stable, move indeformable, can practise by correct firmly track and angle of trajectory simultaneously, centrifugal in advance elongation before throwing the muscle group of initiatively exerting oneself and exerting oneself, effectively firmly distance runs through whole force process, and throwing discus specific strength is very helpful for improving.

Description of drawings

Fig. 1 is a main TV structure schematic diagram of the present utility model, and Fig. 2 is the B-B cutaway view of Fig. 1, Fig. 3 be the A of Fig. 1 to view, Fig. 4 is the C-C cutaway view of Fig. 3.

The specific embodiment

The specific embodiment one: in conjunction with Fig. 1-Fig. 4 present embodiment is described, the exercising machine of present embodiment comprises annular slab 2, extendible elastic support 3, base plate 8, slide plate 9, first spring 10, front shoe 11, two fixed bodies 12, drive motors 13, transmission mechanism 14, traction belt 15, traction belt wheel 16, support 17, driven shaft 18, first contact switch, second contact switch, gauge tap 19, rear fixed plate 20, handle 52, connecting rod 53, connecting rod swivel nut 54, steel wire 55, second spring 56, body 57 and two rollers 51; The lower surface of the upper end of extendible elastic support 3 and annular slab 2 is affixed, the rear end of annular slab 2 is downward-sloping, the lower surface of annular slab 2 and the angle α between the horizontal plane are 37 ° ± 3 °, the aperture d1 of the centre bore of annular slab 2 is 75cm-85cm, the diameter d 2 of the excircle end face of annular slab 2 is 240cm-260cm, body 57 is bent into spiral-shaped, body 57 is arranged on the last ring surface of annular slab 2 and the two removably connect (the two removably connects by screw in the present embodiment), the external port of body 57 is 30 ° to the peak of the line of centres of annular slab 2 and annular slab 2 to the angle β between the center line of minimum point, a side adjacent with the lateral wall of annular slab 2 on the tube wall of body 57 is provided with opening 58, opening 58 is offered along the total length of body 57, two rollers 51 roll and are arranged on the inwall of body 57, and be positioned at a side adjacent with the centre bore of annular slab 2, one end of connecting rod 53 and the wheel carrier of two rollers 51 are affixed, the other end of connecting rod 53 passes the outside that opening 58 on the body 57 is arranged on body 57, the cross section of connecting rod 53 is circular, be processed with screw thread on the other end sidewall of connecting rod 53, connecting rod 53 is threaded with connecting rod swivel nut 54 (by adjusting the connecting rod swivel nut length partly that is threaded with connecting rod, to adapt to the sportsman of dissimilar arm exhibition), connecting rod swivel nut 54 is connected with handle 52 elasticity, one end of steel wire 55 and the wheel carrier of two rollers 51 are affixed, the other end of steel wire 55 passes the inner end mouth of body 57 and affixed with an end of second spring 56, the other end and the fixed object of second spring 56 is affixed (by adjusting the size of second spring, 56 resistances, to adapt to the different sportsman of special ability), base plate 8 is affixed with ground, be disposed with front shoe 11 and slide plate 9 from A-P on the base plate 8, front shoe 11 is affixed with base plate 8, slide plate 9 is slidingly matched with base plate 8, respectively be fixed with a fixed body 12 on front shoe 11 and the slide plate 9, connect by first spring 10 between two fixed bodies 12, extendible elastic support 3 is arranged on the slide plate 9 and is positioned at the back of fixed body 12, the lower end of extendible elastic support 3 and slide plate 9 are affixed, support 17 is arranged on the rear side of base plate 8, support 17 is affixed with ground, the two ends of driven shaft 18 respectively are rotationally connected by a bearing and support 17, be fixed with a traction belt wheel 16 on the driven shaft 18, one end of traction belt 15 and the rear end of slide plate 9 are affixed, the other end of traction belt 15 is wrapped on the traction belt wheel 16, be in transmission connection by transmission mechanism 14 between the output shaft of drive motors 13 and the driven shaft 18, two first contacts 21 of first contact switch are oppositely arranged, and on the rear end face of front shoe 11 and respectively be fixed with one first contact 21 of first contact switch on the front end face of slide plate 9, gauge tap 19 is packed on the slide plate 9, the rear end of slide plate 9 is provided with breach, rear fixed plate 20 is packed on the base plate 8 and is positioned at the indentation, there of slide plate 9, two second contacts 22 of second contact switch are oppositely arranged, one second contact 22 of second contact switch is packed on the front end face of rear fixed plate 20, another second contact 22 of second contact switch is packed on the slide plate 9, and is positioned on the rear fixed plate 20 corresponding end faces.

The specific embodiment two: in conjunction with Fig. 1 and Fig. 2 explanation, the extendible elastic support 3 of present embodiment is made up of four telescopic elastic supporting legs 23 and four crossbeams 24; Four telescopic elastic supporting legs 23 are positioned on the cross centre line of annular slab 2 lower surfaces, upper surface by four telescopic elastic supporting legs 23 constitutes an inclined-plane, the incline direction on inclined-plane is all identical with the incline direction and the angle of inclination of annular slab 2 with the angle of inclination, connects by a crossbeam 24 between adjacent two telescopic elastic supporting legs 23.So be provided with, simple in structure, good reliability.Other is identical with the specific embodiment one.

The specific embodiment three: in conjunction with Fig. 1 and Fig. 2 explanation, every telescopic elastic supporting leg 23 of present embodiment is made up of supporting leg 25, leg sleeve 26, first bearing pin 27, first engaging lug 28, second engaging lug 29, the 3rd spring 30 and second bearing pin 34; It is axially arranged with supporting leg 25 upper edges a plurality of first bearing pins and passes the hole, it is axially arranged with leg sleeve 26 upper edges a plurality of second bearing pins and passes the hole, the lower end of supporting leg 25 is inserted in the upper end of leg sleeve 26 inner chambers, supporting leg 25 and leg sleeve 26 are passed the hole and are connected with first bearing pin 27 that second bearing pin passes in the hole by being contained in first bearing pin, connect by a crossbeam 24 between adjacent two leg sleeve 26, the lower end of leg sleeve 26 and slide plate 9 are affixed, the center of the upper surface of supporting leg 25 is provided with counterbore, the lower end of the 3rd spring 30 is arranged in the counterbore of supporting leg 25 and is affixed with supporting leg 25, the lower surface of the upper end of the 3rd spring 30 and first engaging lug 28 is affixed, first engaging lug 28 and second engaging lug 29 are hinged by second bearing pin 34, and the lower surface of the upper surface of second engaging lug 29 and annular slab 2 is affixed.So be provided with, simple in structure, can adjust the position of support according to athletic height, adjust very conveniently, and can satisfy the lower surface of annular slab and the angle between the horizontal plane in setting range.Other is identical with the specific embodiment two.

The specific embodiment four: in conjunction with Fig. 1 and Fig. 2 explanation, the transmission mechanism 14 of present embodiment is made up of driving gear 31 and driven gear 32; Driving gear 31 is packed on the output shaft of drive motors 13, driving gear 31 and driven gear 32 engagements, and driven gear 32 is packed on the driven shaft 18.So be provided with, simple in structure, stable drive is reliable.Other is identical with the specific embodiment one or two.

The specific embodiment five: in conjunction with Fig. 4 explanation, the exercising machine of present embodiment also comprises jackscrew 59; Jackscrew 59 is threaded with connecting rod swivel nut 54, and the end of jackscrew 59 leans on the sidewall of connecting rod 53.Other is identical with the specific embodiment one or two.

The specific embodiment six: in conjunction with Fig. 4 explanation, the exercising machine of present embodiment also comprises two the 4th springs 60; Connecting rod swivel nut 54 is connected by two the 4th spring 60 elasticity with handle 52.Other is identical with the specific embodiment one or two.

The practitioner is when carrying out the discus specific strength training, and the start-up control switch rotates drive motors forward (clockwise), and slide plate slides backward, when two second contacts of second contact switch contact, drive motors quits work, and at this moment, first spring is in extended state; The start-up control switch makes oppositely (counterclockwise) rotation of drive motors, and slide plate is to front slide, and when two first contacts of first contact switch contacted, drive motors quit work, and this moment, first spring was tending towards compressive state.The practitioner is when carrying out the exercise of discus specific strength, utilize the preshoot and the last braking of the slip simulation rotation of slide plate, second spring is in extended state, holds handle and two rollers are rolled in body (spiral-shaped), and the practitioner carries out the discus specific strength exercise of superfine length.

Claims

1. superfine long discus specific strength exercising machine, it is characterized in that: described exercising machine comprises annular slab (2), extendible elastic support (3), base plate (8), slide plate (9), first spring (10), front shoe (11), two fixed bodies (12), drive motors (13), transmission mechanism (14), traction belt (15), traction belt wheel (16), support (17), driven shaft (18), first contact switch, second contact switch, gauge tap (19), rear fixed plate (20), handle (52), connecting rod (53), connecting rod swivel nut (54), steel wire (55), second spring (56), body (57) and two rollers (51); The lower surface of the upper end of extendible elastic support (3) and annular slab (2) is affixed, the rear end of annular slab (2) is downward-sloping, the lower surface of annular slab (2) and the angle between the horizontal plane (α) are 37 ° ± 3 °, the aperture (d1) of the centre bore of annular slab (2) is 75cm-85cm, the diameter (d2) of the excircle end face of annular slab (2) is 240cm-260cm, body (57) is bent into spiral-shaped, body (57) is arranged on the last ring surface of annular slab (2) and the two removably connects, the external port of body (57) to the line of centres of annular slab (2) and peak to the angle (β) between the center line of minimum point of annular slab (2) is 30 °, a side adjacent with the lateral wall of annular slab (2) on the tube wall of body (57) is provided with opening (58), opening (58) is offered along the total length of body (57), two rollers (51) roll and are arranged on the inwall of body (57), and be positioned at and the adjacent side of centre bore of annular slab (2), the wheel carrier of one end of connecting rod (53) and two rollers (51) is affixed, the other end of connecting rod (53) passes the outside that opening (58) on the body (57) is arranged on body (57), the cross section of connecting rod (53) is circular, be processed with screw thread on the other end sidewall of connecting rod (53), connecting rod (53) is threaded with connecting rod swivel nut (54), connecting rod swivel nut (54) is connected with handle (52) elasticity, the wheel carrier of one end of steel wire (55) and two rollers (51) is affixed, the other end of steel wire (55) passes the inner end mouth of body (57) and affixed with an end of second spring (56), the other end and the fixed object of second spring (56) are affixed, base plate (8) is affixed with ground, base plate (8) is gone up and is disposed with front shoe (11) and slide plate (9) from A-P, front shoe (11) is affixed with base plate (8), slide plate (9) is slidingly matched with base plate (8), respectively be fixed with a fixed body (12) on front shoe (11) and the slide plate (9), connect by first spring (10) between two fixed bodies (12), extendible elastic support (3) is arranged on the back that fixed body (12) were gone up and be positioned to slide plate (9), the lower end of extendible elastic support (3) and slide plate (9) are affixed, support (17) is arranged on the rear side of base plate (8), support (17) is affixed with ground, the two ends of driven shaft (18) respectively are rotationally connected by a bearing and support (17), be fixed with a traction belt wheel (16) on the driven shaft (18), the rear end of one end of traction belt (15) and slide plate (9) is affixed, the other end of traction belt (15) is wrapped on the traction belt wheel (16), be in transmission connection by transmission mechanism (14) between the output shaft of drive motors (13) and the driven shaft (18), two first contacts (21) of first contact switch are oppositely arranged, and respectively be fixed with one first contact (21) of first contact switch on the rear end face of front shoe (11) and on the front end face of slide plate (9), gauge tap (19) is packed on the slide plate (9), the rear end of slide plate (9) is provided with breach, rear fixed plate (20) is packed in the indentation, there that slide plate (9) were gone up and be positioned to base plate (8), two second contacts (22) of second contact switch are oppositely arranged, one second contact (22) of second contact switch is packed on the front end face of rear fixed plate (20), another second contact (22) of second contact switch is packed on the slide plate (9), and is positioned on the corresponding end face of rear fixed plate (20).

2. superfine long discus specific strength exercising machine according to claim 1, it is characterized in that: extendible elastic support (3) is made up of four telescopic elastic supporting legs (23) and four crossbeams (24); Four telescopic elastic supporting legs (23) are positioned on the cross centre line of annular slab (2) lower surface, upper surface by four telescopic elastic supporting legs (23) constitutes an inclined-plane, the incline direction on inclined-plane is all identical with the incline direction and the angle of inclination of annular slab (2) with the angle of inclination, connects by a crossbeam (24) between adjacent two telescopic elastic supporting legs (23).

3. superfine long discus specific strength exercising machine according to claim 2, it is characterized in that: every telescopic elastic supporting leg (23) is made up of supporting leg (25), leg sleeve (26), first bearing pin (27), first engaging lug (28), second engaging lug (29), the 3rd spring (30) and second bearing pin (34); It is axially arranged with supporting leg (25) upper edge a plurality of first bearing pins and passes the hole, it is axially arranged with leg sleeve (26) upper edge a plurality of second bearing pins and passes the hole, the lower end of supporting leg (25) is inserted in the upper end of leg sleeve (26) inner chamber, supporting leg (25) and leg sleeve (26) are passed the hole and are connected with first bearing pin (27) that second bearing pin passes in the hole by being contained in first bearing pin, connect by a crossbeam (24) between adjacent two leg sleeve (26), the lower end of leg sleeve (26) and slide plate (9) are affixed, the center of the upper surface of supporting leg (25) is provided with counterbore, the lower end of the 3rd spring (30) is arranged in the counterbore of supporting leg (25) and is affixed with supporting leg (25), the lower surface of the upper end of the 3rd spring (30) and first engaging lug (28) is affixed, first engaging lug (28) is hinged by second bearing pin (34) with second engaging lug (29), and the lower surface of the upper surface of second engaging lug (29) and annular slab (2) is affixed.

4. superfine long discus specific strength exercising machine according to claim 1 and 2, it is characterized in that: transmission mechanism (14) is made up of driving gear (31) and driven gear (32); Driving gear (31) is packed on the output shaft of drive motors (13), driving gear (31) and driven gear (32) engagement, and driven gear (32) is packed on the driven shaft (18).

5. superfine long discus specific strength exercising machine according to claim 1 and 2, it is characterized in that: described exercising machine also comprises jackscrew (59); Jackscrew (59) is threaded with connecting rod swivel nut (54), and the end of jackscrew (59) leans on the sidewall of connecting rod (53).

6. superfine long discus specific strength exercising machine according to claim 1 and 2, it is characterized in that: described exercising machine also comprises two the 4th springs (60); Connecting rod swivel nut (54) is connected by two the 4th springs (60) elasticity with handle (52).