CN202376708U

CN202376708U - Photoelectric hammer throw special strength training device

Info

Publication number: CN202376708U
Application number: CN 201120563989
Authority: CN
Inventors: 孙华义; 韩洪侠; 王忠才; 宋国良; 夏国滨
Original assignee: Mudanjiang Normal University
Current assignee: Mudanjiang Normal University
Priority date: 2011-12-29
Filing date: 2011-12-29
Publication date: 2012-08-15
Anticipated expiration: 2021-12-29

Abstract

The utility model relates to a photoelectric hammer throw special strength training device, which relates to a hammer throw special training device. In order to solve the problem of using the existing practice method for hammer throw special strength training, other muscle groups other than the active throwing muscle group participate too much, resulting in deformation of the throwing action, difficulty in grasping the throwing angle, and difficulty in real-time and effective monitoring of the throwing speed. The stretchable elastic bracket is fixedly connected with the annular plate and the sliding plate, the slider and the photoelectric speed sensor are arranged on the annular plate, the front fixed plate is fixed with the bottom plate, the sliding plate and the bottom plate are slidably matched, the front fixed plate and the sliding plate can be stretched and connected, and the driven The shaft is rotatably connected with the bracket, and the traction pulley is fixed on the driven shaft. One end of the traction belt is fixedly connected to the slide plate, and the other end is wound on the traction pulley. The driving motor and the driven shaft are connected through a transmission mechanism. The first and second The contact switch is fixed on the front and rear fixing plates and the slide plate, and the control switch is fixed on the slide plate. The utility model is used for hammer throw special strength training.

Description

Photo-electric hammer specific strength exercising machine

Technical field

The utility model relates to a kind of hammer specific exercises device.

Background technology

At present, hammer specific strength exercise removes the hard draw that adopts barbell, bear a heavy burden and turn, bear a heavy burden trunk bending forwards etc. the means, and main the employing swung the pendulum disc, drawn modes such as drag devices and throwing weight to carry out strengthening exercise.And adopt above-mentioned exercise means to have following problem: promptly when the weight of swinging pendulum disc or throwing is excessive, cause practitioner's centre of body weight unstable easily; Other muscle group of throwing outside the muscle group of initiatively exerting oneself is too much participated in; Cause the throwing action distortion, angle out of strength is difficult for grasping when drawing rubber band, and effectively firmly distance is short; Release speed is difficult to monitor effectively immediately, and training effect is not good enough.

The utility model content

The purpose of the utility model provides a kind of photo-electric hammer specific strength exercising machine, when adopting and swinging the pendulum disc, drawing modes such as drag devices and throwing weight to carry out the exercise of hammer specific strength with solution, and practitioner's centre of body weight shakiness; Other muscle group of throwing outside the muscle group of initiatively exerting oneself is too much participated in; Cause the throwing action distortion, angle out of strength is difficult for grasping when drawing rubber band, and effectively firmly distance is short; Release speed is difficult to monitor effectively immediately, 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: the photo-electric hammer specific strength exercising machine of the utility model, and said exercising machine comprises annular slab, extendible elastic support, base plate, slide plate, stretchable elastomer, front shoe, drive motors, transmission mechanism, traction belt, traction belt wheel, support, driven shaft, first contact switch, second contact switch, gauge tap, rear fixed plate, connecting rod, handle, nut, light electricity velocity sensor, two fixed bodies and a plurality of slide block; Connecting rod is a knee, is processed with external screw thread on the end outer wall of connecting rod;

The upper end of extendible elastic support and the lower surface of annular slab are affixed, and the rear end of annular slab is downward-sloping, and 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, and the diameter of the excircle end face of annular slab is 240cm-260cm, overlooks and sees annular slab; And be provided with light electricity velocity sensor between the two of counterclockwise being looked by least significant end to the most significant end of annular slab, and the terminating end emitter of light electricity velocity sensor is positioned on the vertical centre axis of annular slab incline direction, the initiating terminal emitter of light electricity velocity sensor is arranged between the least significant end and this terminating end emitter of annular slab; And the spacing between this initiating terminal emitter and this terminating end emitter is 50cm, the corresponding setting with the initiating terminal receiving system of the initiating terminal emitter of light electricity velocity sensor, the corresponding setting with the terminating end receiving system of the terminating end emitter of light electricity velocity sensor; Initiating terminal emitter and terminating end emitter are arranged on the outer edge of annular slab upper surface, and initiating terminal receiving system and terminating end receiving system are arranged on the inside edge of annular slab upper surface, and slide block is provided with centre bore; A plurality of slide blocks are stacked together and are arranged on the upper surface of annular slab, and the cross-sectional area of a plurality of slide blocks from top to bottom increases successively, are provided with counterbore with the bottom surface of the contacted slide block in upper surface of annular slab; Nut is housed in the counterbore, and the centre bore that an end of connecting rod passes a plurality of slide blocks is connected with nut thread, and the other end of connecting rod is fixedly connected jug; Be slidingly matched with the upper surface of contacted slide block in the upper surface of annular slab and annular slab, base plate and ground are affixed, are disposed with front shoe and slide plate from A-P on the base plate; Front shoe and base plate are affixed, and slide plate and base plate are slidingly matched, and respectively are fixed with a fixed body on front shoe and the slide plate; Connect through stretchable elastomer between two fixed bodies, extendible elastic support is arranged on the slide plate and is positioned at the back of two fixed bodies, and 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, and the two ends of driven shaft respectively are rotationally connected through a bearing and support, are 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, is in transmission connection through transmission mechanism between the output shaft of drive motors and the driven shaft, and two first contacts of first contact switch are oppositely arranged; And respectively be fixed with one first contact of first contact switch on the rear end face of front shoe and on the front end face of slide plate; Gauge tap is packed on the slide plate, and the rear end of slide plate is provided with breach, and 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, and 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 effect of the utility model is: the utility model is according to correlation theories such as sport biomechanics and athletic physiologies, and the characteristics that combine the hammer specific strength to practise, and makes the sportsman when the hammer specific strength is practised, can strengthen the exercise resistance; Initiatively muscle group firmly accurately; Centre of body weight is stable, move indeformablely, can practise by correct track and the angle of trajectory of exerting oneself simultaneously; Release speed can be monitored immediately effectively, and throwing hammer specific strength is very helpful for improving.

Description of drawings

Fig. 1 is the main TV structure sketch map of the utility model, Fig. 2 be the A of Fig. 1 to view, Fig. 3 is the front view that connecting rod, handle, nut and a plurality of slide block are assembled together, Fig. 4 is the vertical view of Fig. 3, Fig. 5 is the B-B cutaway view of Fig. 1.

The specific embodiment

The specific embodiment one: combine Fig. 1-Fig. 5 that this embodiment is described; The photo-electric hammer specific strength exercising machine of this embodiment, said exercising machine comprise annular slab 2, extendible elastic support 3, base plate 8, slide plate 9, stretchable elastomer 10, front shoe 11, 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, connecting rod 1, handle 4, nut 6, light electricity velocity sensor 50, two fixed bodies 12 and a plurality of slide blocks 5; Connecting rod 1 is a knee, is processed with external screw thread on the end outer wall of connecting rod 1;

The lower surface of the upper end of extendible elastic support 3 and annular slab 2 is affixed, and the rear end of annular slab 2 is downward-sloping, and the lower surface of annular slab 2 and the angle between the horizontal plane are 37 ° ± 3 °; The aperture D1 of the centre bore 35 of annular slab 2 is 75cm-85cm, and the diameter D2 of the excircle end face 36 of annular slab 2 is 240cm-260cm, overlooks and sees annular slab 2; And be provided with light electricity velocity sensor 50 between the two of counterclockwise being looked by least significant end to the most significant end of annular slab 2, and the terminating end emitter 50-2 of light electricity velocity sensor 50 is positioned on the vertical centre axis of annular slab 2 incline directions, the initiating terminal emitter 50-1 of light electricity velocity sensor 50 is arranged between the least significant end and this terminating end emitter 50-2 of annular slab 2; And the spacing L between this initiating terminal emitter 50-1 and this terminating end emitter 50-2 is 50cm, the initiating terminal emitter 50-1 of light electricity velocity sensor 50 and the corresponding setting of initiating terminal receiving system 50-4, the terminating end emitter 50-2 of light electricity velocity sensor 50 and the corresponding setting of terminating end receiving system 50-3; Initiating terminal emitter 50-1 and terminating end emitter 50-2 are arranged on the outer edge of annular slab 2 upper surfaces, and initiating terminal receiving system 50-4 and terminating end receiving system 50-3 are arranged on the inside edge of annular slab 2 upper surfaces (if regard annular slab 2 as dial plate, the least significant end of annular slab 2 is positioned at 6 positions of dial plate; The most significant end of annular slab 2 is positioned at 12 positions of dial plate, and terminating end emitter 50-2 is positioned at 3 positions of dial plate), slide block 5 is provided with centre bore; A plurality of slide blocks 5 are stacked together and are arranged on the upper surface of annular slab 2, and the cross-sectional area of a plurality of slide block 5 from top to bottom increases successively, are provided with counterbore with the bottom surface of the contacted slide block 5 in the upper surface of annular slab 2; Nut 6 is housed in the counterbore, and the centre bore that an end of connecting rod 1 passes a plurality of slide blocks 5 is threaded with nut 6, and the other end of connecting rod 1 is fixedly connected jug 4; Be slidingly matched with the upper surface of the contacted slide block 5 in the upper surface of annular slab 2 with annular slab 2, base plate 8 is affixed with ground, is 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, and slide plate 9 is slidingly matched with base plate 8, respectively is fixed with a fixed body 12 on front shoe 11 and the slide plate 9; Connect through stretchable elastomer 10 between two fixed bodies 12, extendible elastic support 3 is arranged on the slide plate 9 and is positioned at the back of two fixed bodies 12, and 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, and support 17 is affixed with ground, and the two ends of driven shaft 18 respectively are rotationally connected through a bearing and support 17; Be fixed with a traction belt wheel 16 on the driven shaft 18, an end of traction belt 15 and the rear end of slide plate 9 are affixed, and the other end of traction belt 15 is wrapped on the traction belt wheel 16; Be in transmission connection through 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 are 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, and 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, and two second contacts 22 of second contact switch are oppositely arranged, and 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.Light electricity velocity sensor adopts prior art, is manufactured by KEYENCE company.

The specific embodiment two: combine Fig. 1 and Fig. 5 that this embodiment is described, the extendible elastic support 3 of this embodiment is made up of four telescopic elastic supporting legs 23 and four crossbeams 24; In four telescopic elastic supporting legs 23 two are arranged on annular slab 2 lower surfaces and are positioned on the central axis parallel with the incline direction of this annular slab 2; Two of residues in four telescopic elastic supporting legs 23 are arranged on annular slab 2 lower surfaces and are positioned on the central axis vertical with this incline direction; 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 through a crossbeam 24 between adjacent two telescopic elastic supporting legs 23.The extendible elastic support good stability so is set.Other is identical with embodiment one.

The specific embodiment three: combine Fig. 1 and Fig. 5 that this embodiment is described, the every telescopic elastic supporting leg 23 of this embodiment is made up of supporting leg 25, leg sleeve 26, first bearing pin 27, first engaging lug 28, second engaging lug 29, first 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, and 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 through being contained in first bearing pin, connect through 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 blind hole, and the lower end of first spring 30 is arranged in the blind hole of supporting leg 25 and is affixed with supporting leg 25, and the lower surface of the upper end of first spring 30 and first engaging lug 28 is affixed; First engaging lug 28 and second engaging lug 29 are hinged through 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 be according to the position of athletic height adjustment support, adjust very conveniently, and lower surface and the angle between the horizontal plane that can satisfy annular slab are in setting range.Other is identical with embodiment two.

The specific embodiment four: combine Fig. 5 that this embodiment is described, the transmission mechanism 14 of this 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 embodiment one or two.

The specific embodiment five: combine Fig. 1 and Fig. 5 that this embodiment is described, the stretchable elastomer 10 of this embodiment is second spring or rubber band.Other is identical with embodiment one.

The specific embodiment six: combine Fig. 1 that this embodiment is described, this embodiment with the difference of the specific embodiment one is: the exercising machine of this embodiment also comprises protractor 33; Protractor 33 is arranged on the lateral wall of annular slab 2, and a right-angle side of protractor 33 is parallel with the incline direction of annular slab 2, and another right-angle side of protractor 33 is vertical with the incline direction of annular slab 2.The angle of inclination that can measure annular slab easily so is set.

The practitioner is when carrying out the hammer 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, stretchable elastomer is in extended state; The start-up control switch rotates drive motors reverse (counterclockwise), and slide plate is to front slide, and when two first contacts of first contact switch contacted, drive motors quit work, and this moment, stretchable elastomer was in compressive state.The practitioner can recycle forward momentum sliding slider exercise on annular slab of the slip simulation rotation of slide plate when carrying out the exercise of hammer specific strength; Perhaps only in the enterprising line slip slide block exercise of annular slab, practitioner's release speed can be monitored immediately effectively.In addition, can strengthen the specific strength exercise of hammer through the weight of adjusting slider.

Claims

1. A photoelectric hammer ball special strength training device is characterized in that: said training device comprises annular plate (2), telescopic elastic support (3), base plate (8), slide plate (9), stretchable elastic body (10), front fixing plate (11), driving motor (13), transmission mechanism (14), traction belt (15), traction pulley (16), bracket (17), driven shaft (18), the One contact switch, second contact switch, control switch (19), rear fixing plate (20), connecting rod (1), handle (4), nut (6), photoelectric speed sensor (50), two fixing body (12) and a plurality of slide blocks (5); the connecting rod (1) is a bent rod, and an external thread is processed on the outer wall of one end of the connecting rod (1);

The upper end of the telescopic elastic bracket (3) is fixedly connected to the lower end surface of the annular plate (2), the rear end of the annular plate (2) is inclined downward, and the angle between the lower end surface of the annular plate (2) and the horizontal plane (α ) is 37 ° ± 3 °, the aperture (D1) of the central hole (35) of the annular plate (2) is 75cm-85cm, and the diameter (D2) of the outer peripheral end face (36) of the annular plate (2) is 240cm-260cm , looking down at the annular plate (2), and looking counterclockwise from the lowest end to the highest end of the annular plate (2), a photoelectric speed sensor (50) is arranged between the two, and the end of the photoelectric speed sensor (50) The end emission device (50-2) is positioned on the vertical central axis of the annular plate (2) inclination direction, and the initial end emission device (50-1) of the photoelectric speed sensor (50) is arranged on the lowest end of the annular plate (2) and the Between the terminal launchers (50-2), and the distance (L) between the start launcher (50-1) and the terminal launcher (50-2) is 50cm, the photoelectric speed sensor (50) The start-end transmitting device (50-1) of the photoelectric speed sensor (50) is correspondingly arranged with the start-end receiving device (50-4), and the terminal-end transmitting device (50-2) of the photoelectric speed sensor (50) is corresponding to the terminal-end receiving device (50-3) Setting, the start-end launcher (50-1) and the end-end launcher (50-2) are arranged on the outer edge of the upper end face of the annular plate (2), and the start-end receiver (50-4) and the end-end receiver ( 50-3) Set at the inner edge of the upper end surface of the annular plate (2), the slider (5) is provided with a central hole, and multiple sliders (5) are stacked together and arranged on the upper end surface of the annular plate (2) , and the cross-sectional area of multiple sliders (5) increases sequentially from top to bottom, and the bottom surface of the slider (5) that is in contact with the upper end surface of the annular plate (2) is provided with a counterbore, and the counterbore is equipped with Nut (6), one end of connecting rod (1) passes through the central hole of a plurality of slide blocks (5) and is threadedly connected with nut (6), and the other end of connecting rod (1) is fixedly connected with handle (4), and ring The slider (5) that is in contact with the upper end surface of the plate (2) is slidingly fitted with the upper end surface of the annular plate (2), the bottom plate (8) is fixedly connected to the ground, and the front fixing plate ( 11) and the slide plate (9), the front fixed plate (11) is fixedly connected with the base plate (8), the slide plate (9) is slidably matched with the base plate (8), each of the front fixed plate (11) and the slide plate (9) is fixedly equipped with A fixed body (12), the two fixed bodies (12) are connected by a stretchable elastic body (10), and the stretchable elastic support (3) is arranged on the slide plate (9) and is located between the two fixed bodies (12). ), the lower end of the telescopic elastic bracket (3) is fixedly connected to the slide plate (9), the bracket (17) is arranged on the rear side of the base plate (8), the bracket (17) is fixedly connected to the ground, and the driven shaft (18) Each of the two ends of the traction belt (15) is connected to the support (17) in rotation through a bearing, and a traction pulley (16) is fixedly installed on the driven shaft (18), and one end of the traction belt (15) is fixedly connected to the rear end of the slide plate (9). ,Leashes( The other end of 15) is wound on the traction pulley (16), and the output shaft of the drive motor (13) is connected to the driven shaft (18) through a transmission mechanism (14). A contact point (21) is oppositely arranged, and a first contact point (21) of the first contact switch is respectively fixedly installed on the rear end face of the front fixed plate (11) and the front end face of the slide plate (9), and the control switch (19) is fixed on the slide plate (9), the rear end of the slide plate (9) is provided with a gap, the rear fixed plate (20) is fixed on the bottom plate (8) and is located at the gap of the slide plate (9), the second touch Two second contacts (22) of the point switch are arranged oppositely, and a second contact (22) of the second contact switch is fixedly mounted on the front end face of the rear fixed plate (20), and the other of the second contact switch A second contact point (22) is fixedly installed on the slide plate (9) and is located on the corresponding end face of the rear fixing plate (20).

2. The special power trainer for photoelectric hammer throw according to claim 1, characterized in that: the telescopic elastic support (3) is made up of four telescopic elastic legs (23) and four beams (24); four Two of the telescopic elastic legs (23) are arranged on the lower end surface of the annular plate (2) and are located on the central axis parallel to the inclination direction of the annular plate (2), and the four telescopic elastic legs (23) The remaining two of them are arranged on the lower end surface of the annular plate (2) and are located on the central axis perpendicular to the inclination direction, and an inclined plane is formed by the upper end surfaces of the four flexible elastic legs (23), the inclination direction of the inclined plane and The inclination angles are all the same as the inclination direction and inclination angle of the annular plate (2), and two adjacent stretchable elastic legs (23) are connected by a beam (24).

3. The photoelectric type hammer throw special strength exerciser according to claim 2, is characterized in that: every telescopic elastic leg (23) consists of a leg (25), a leg cover (26), a first bearing pin ( 27), the first connecting ear (28), the second connecting ear (29), the first spring (30) and the second pin shaft (34); the leg (25) is provided with a plurality of first A pin passes through the hole, and the leg sleeve (26) is provided with a plurality of second pin shafts through the holes along its axial direction, and the lower end of the leg (25) is inserted into the upper end of the inner cavity of the leg sleeve (26) , the legs (25) and the leg sleeves (26) are connected by the first pin shaft (27) installed in the first pin shaft through the hole and the second pin shaft through the hole, two adjacent leg sleeves ( 26) are connected by a crossbeam (24), the lower end of the leg cover (26) is fixedly connected with the slide plate (9), the center position of the upper end surface of the leg (25) is provided with a blind hole, and the first spring (30 ) is arranged in the blind hole of the leg (25) and fixedly connected with the leg (25), the upper end of the first spring (30) is fixedly connected with the lower end surface of the first connecting ear (28), and the first connecting ear (28) is hinged with the second connecting ear (29) through the second pin shaft (34), and the upper end surface of the second connecting ear (29) is affixed to the lower end surface of the annular plate (2).

4. according to claim 1 or 2 described photoelectric type hammer ball special power trainer, it is characterized in that: transmission mechanism (14) is made up of driving gear (31) and driven gear (32); Driving gear (31) is fixed On the output shaft of the driving motor (13), the driving gear (31) meshes with the driven gear (32), and the driven gear (32) is fixedly mounted on the driven shaft (18).

5. The photoelectric hammer throw special strength training device according to claim 1, characterized in that: the stretchable elastic body (10) is a second spring or a rubber band.

6. photoelectric hammer throw special power trainer according to claim 1, is characterized in that: described trainer also comprises protractor (33); Protractor (33) is arranged on the outer wall of annular plate (2), and protractor ( A right-angled side of 33) is parallel to the inclination direction of the annular plate (2), and another right-angled side of the protractor (33) is perpendicular to the inclination direction of the annular plate (2).