CN113996005A

CN113996005A - An arm strength lifting training device for physical education teaching

Info

Publication number: CN113996005A
Application number: CN202111238356.5A
Authority: CN
Inventors: 谢波飞
Original assignee: Wenzhou Polytechnic
Current assignee: Zhejiang Langwei Electrical Appliance Technology Co ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-02-01
Anticipated expiration: 2041-10-25
Also published as: CN113996005B

Abstract

The utility model provides an arm strength promotes trainer for sports teaching, includes the box, sliding fit installs the lifter plate in the box, sets up the line hole on the box, and the line inslot activity is equipped with the stay cord, fixed mounting fixed pulley in the box, and fixed pulley and lifter plate fixed connection are walked around to the one end of stay cord, and the other end fixed mounting pull ring of stay cord is equipped with the counter weight device that can automatically regulated counter weight on the lifter plate. When the device is used, a user pulls the pull ring, the pull ring can pull the pull rope out of the wire hole, the pull rope can pull the lifting plate to move upwards, then the user slowly cancels the pulling force on the pull ring, the lifting plate moves downwards under the action of the gravity of the counterweight device and resets, and the counterweight of the counterweight device can be automatically adjusted in the lifting process of the lifting plate, so that the counterweight of the lifting plate is changed, and the acting force required by pulling the pull ring is continuously changed.

Description

Arm strength lifting training device for physical education teaching

Technical Field

The invention belongs to the field of physical training equipment, and particularly relates to an arm strength lifting training device for physical training.

Background

When carrying out the arm strength training, training the arm strength through carrying out the pulling heavy object to many times, carry out the arm strength training process through current apparatus, the weight of heavy object is stable unchangeable, and the resistance that consequently the user received is unchangeable, if the resistance is less, then temper the effect relatively poor, if the resistance is in user's atress limit for a long time, make the user be injured easily, can't satisfy the actual demand, so we have invented an arm strength promotion trainer for sports teaching.

Disclosure of Invention

The invention provides an arm strength lifting training device for physical education, which is used for overcoming the defects in the prior art.

The invention is realized by the following technical scheme:

the utility model provides an arm power promotes trainer for sports teaching, includes the box, sliding fit installation lifter plate in the box sets up the line hole on the box, and the line inslot activity is equipped with the stay cord, fixed mounting fixed pulley in the box, and fixed pulley and lifter plate fixed connection are walked around to the one end of stay cord, the other end fixed mounting pull ring of stay cord, its characterized in that: the lifting plate is provided with a counterweight device capable of automatically adjusting counterweight.

The arm strength lifting training device for physical education comprises a vertical pipe, wherein the vertical pipe is installed on a lifting plate in a penetrating mode, a plurality of weight plates which are distributed up and down are movably sleeved on the periphery of the vertical pipe, the weight plates can only move up and down in a box body, supporting blocks are fixedly installed on the bottom sides of the weight plates respectively, a plurality of through grooves are formed in the periphery of the vertical pipe corresponding to the weight plates respectively, a driving rod is hinged in each through groove, a first magnet is fixedly installed at the lower end of the driving rod, a second magnet is fixedly installed on the bottom sides of the through grooves, the first magnet and the second magnet can attract magnetically, a stop lever is fixedly installed in each through groove, a magnet pipe is movably installed in the vertical pipe, a driving device capable of driving the magnet pipe to move up and down is arranged on the lifting plate, the magnet pipe can move up and down in the vertical pipe, when the magnet pipe is located near the corresponding first magnet, the magnet pipe can form magnetic attraction force for the first magnet, and the magnetic attraction of the magnet tube to the first magnet is larger than the magnetic attraction of the second magnet to the first magnet.

As above, an arm power promotes trainer for sports teaching, drive arrangement includes the screw, the upper end fixed mounting screw of magnet pipe, the reciprocal lead screw of screw female fit installation, reciprocal lead screw rotates and installs on the lifter plate, the first helical gear of one-way bearing rotation installation is passed through at the top of reciprocal lead screw, one side of first helical gear is equipped with the back shaft, the back shaft rotates and installs on the lifter plate, the one end fixed mounting second helical gear of back shaft, second helical gear and first helical gear meshing cooperation, the other end installation gear of back shaft, fixed mounting bar rack in the box, the gear can cooperate with bar rack meshing.

As above an arm strength promotes trainer for sports teaching, the other end of back shaft is through first telescopic shaft installation gear, the one end of first telescopic shaft and the other end fixed connection of back shaft, the fixed installation gear of the other end of first telescopic shaft, the installation axle sleeve is rotated through the bearing in the periphery of the first telescopic shaft other end, the axle sleeve is connected through the spring beam with the lifter plate, one side fixed mounting slide bar of axle sleeve, the fixed mounting deflector in the box.

According to the arm strength lifting training device for physical education, the left side of the vertical plate of the guide plate is provided with the inverted teeth capable of preventing the sliding rod from sliding upwards along the left side of the vertical plate.

According to the arm strength lifting training device for physical education, the side wall of the box body is provided with the first strip-shaped sliding groove, the side surface of the counterweight plate and the side surface of the lifting plate are respectively and fixedly provided with the first sliding block, and the first sliding block can only move up and down along the first strip-shaped sliding groove; a second strip-shaped sliding groove is formed in the inner wall of the vertical pipe, a second sliding block is fixedly installed on one side of the magnet pipe, and the second sliding block can only slide up and down along the second strip-shaped sliding groove.

According to the arm strength lifting training device for physical education, the upper end of the reciprocating lead screw is rotatably connected with the lower end of the second telescopic shaft through the one-way bearing, the upper end of the second telescopic shaft is fixedly connected with the rotating shaft of the driving motor, and the driving motor is fixedly installed on the box body.

As the arm strength lifting training device for physical education, the observation window is formed in the side wall of the box body.

The invention has the advantages that: the invention has simple structure and ingenious conception, can automatically adjust the counterweight of the counterweight device, thereby leading a user to be capable of continuously changing the resistance to train the arm strength, meeting the market demand and being suitable for popularization. When the lifting plate is used, a user pulls the pull ring, the pull ring can pull the pull rope out of the wire hole, the pull rope can pull the lifting plate to move upwards, then the user slowly cancels the pulling force on the pull ring, the lifting plate moves downwards under the action of the gravity of the counterweight device and resets, the counterweight of the counterweight device can be automatically adjusted in the lifting process of the lifting plate, so that the counterweight of the lifting plate is changed, and the acting force required for pulling the pull ring is continuously changed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention; FIG. 2 is an enlarged view of section I of FIG. 1; fig. 3 is a partial enlarged view of ii of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides an arm strength promotes trainer for sports teaching, as shown in the figure, including box 1, sliding fit installation lifter plate 2 in box 1, lifter plate 2 only can reciprocate in box 1, sets up line hole 3 on the box 1, and 3 internalizations in line hole are equipped with stay cord 4, and fixed mounting fixed pulley 5 in the box 1, fixed pulley 5 and lifter plate 2 fixed connection are walked around to the one end of stay cord 4, and the other end fixed mounting pull ring 6 of stay cord 4, its characterized in that: the lifting plate 2 is provided with a counterweight device capable of automatically adjusting counterweight. The invention has simple structure and ingenious conception, can automatically adjust the counterweight of the counterweight device, thereby leading a user to be capable of continuously changing the resistance to train the arm strength, meeting the market demand and being suitable for popularization. When the lifting plate 2 is used, a user pulls the pull ring 6, the pull ring 6 can pull the pull rope 4 out of the wire hole 3, the pull rope 4 can pull the lifting plate 2 to move upwards, then the user slowly cancels the pulling force on the pull ring 6, the lifting plate 2 moves downwards under the action of the gravity of the counterweight device and resets, and the counterweight of the counterweight device can be automatically adjusted in the lifting process of the lifting plate 2, so that the counterweight of the lifting plate 2 is changed, and the acting force required for pulling the pull ring 6 is continuously changed.

Specifically, as shown in the figure, the counterweight device according to the embodiment includes a vertical pipe 20, the vertical pipe 20 is installed on a lifting plate 2 in a penetrating manner, an inner circumference of a reserved hole in the middle of the lifting plate 2 is fixedly connected with an upper end of an outer circumference of the vertical pipe 20, a plurality of counterweight plates 21 distributed up and down are movably sleeved on the outer circumference of the vertical pipe 20, the counterweight plates 21 can only move up and down in the tank body 1, the inner circumference of an inner hole in the middle of the counterweight plates 21 can respectively be in sliding contact and fit with the outer circumference of the vertical pipe 20, support blocks 22 are respectively fixedly installed on bottom sides of the counterweight plates 21, adjacent counterweight plates 21 are separated by the support blocks 22, so that a gap is formed between the counterweight plates 21 or between the counterweight plates 21 and the bottom of the tank body 1, a plurality of through slots 23 are respectively formed in the outer circumference of the vertical pipe 20 corresponding to the counterweight plates 21, through slots 23 of the same height are uniformly and circumferentially distributed on the vertical pipe 20, a shift lever 24 is hinged in the through hinge shaft is installed in the through slots 23, a middle portion of the shift lever 24 is hinged with a side wall corresponding to the through hinge shaft, first magnet 25 of lower extreme fixed mounting of driving lever 24, bottom side fixed mounting second magnet 26 of groove 23 passes through, first magnet 25 can the magnetism attract with second magnet 26, pass through fixed mounting pin 27 in the groove 23, pin 27 can be spacing to driving lever 24, avoid in the upper end entering standpipe 3 of driving lever 24, avoid the periphery in close contact with cooperation of the lower extreme of driving lever 24 and magnet pipe 28 again simultaneously, movable mounting magnet pipe 28 in the standpipe 20, be equipped with the drive arrangement that can drive magnet pipe 28 and reciprocate on the lifter plate 2, magnet pipe 28 can reciprocate in standpipe 20, when magnet pipe 28 is located near first magnet 25 that corresponds, magnet pipe 28 can form the magnetic attraction to first magnet 25, and magnet pipe 28 is greater than the magnetic attraction of second magnet 26 to first magnet 25's magnetic attraction this moment. The driving device controls the magnet pipe 28 to move up and down in the vertical pipe 20, when the magnet pipe 28 is not near the first magnet 25, the second magnet 26 forms magnetic attraction to the first magnet 25, so that the first magnet 25 drives the lower end of the shift lever 24 to face downwards, the upper end and the lower end of the shift lever 24 are both located in the through slot 23, at this time, the vertical pipe 20 can move up and down in the central hole of the weight plate 21 without driving the weight plate 21 to move up and down, when the magnet pipe 28 is near the first magnet 25, the magnet pipe 28 can form magnetic attraction to the first magnet 25, and at this time, the magnetic attraction of the magnet pipe 28 to the first magnet 25 is greater than the magnetic attraction of the second magnet 26 to the first magnet 25, so that the shift lever 24 rotates along the hinge shaft, the upper end of the shift lever 24 moves out of the through slot 23, the shift lever 24 is in contact fit with the weight stop lever 27, when the vertical pipe 20 moves down along the central hole of the weight plate 21, the shift lever 21 can push the shift lever 24 into the through slot 23, when the driving lever 24 is located the below of the corresponding weight plate 21, the upper end of the driving lever 24 is opened outwards again, the upper end of the driving lever 24 is shifted out of the through slot 23, and is located the below of the corresponding weight plate 21, the standpipe 20 can move downwards along the central hole of the weight plate 21, when the standpipe 20 moves upwards again, the upper end of the driving lever 24 forms upward thrust to the bottom side of the weight plate 21, thereby the standpipe 20 drives the weight plate 21 to move upwards, through adjusting the position of the magnet tube 28 in the standpipe 20, the quantity of the weight plates 21 carried when the standpipe 20 moves upwards and downwards can be controlled, and thereby the counterweight adjustment of the counterweight device is realized.

Specifically, as shown in the figure, the driving device of the present embodiment includes a nut 30, a nut 30 is fixedly installed at the upper end of the magnet tube 28, a reciprocating lead screw 31 is installed in the nut 30 in a threaded fit manner, the reciprocating lead screw 31 is rotatably installed on the lifting plate 2, a shaft seat is rotatably installed at the upper portion of the outer periphery of the reciprocating lead screw 31 through a bearing, the shaft seat is fixedly connected with the lifting plate 2 through a support rod, a first helical gear 32 is rotatably installed at the top of the reciprocating lead screw 31 through a one-way bearing, the upper end of the outer periphery of the reciprocating lead screw 31 is rotatably connected with the inner periphery of the first helical gear 32 through a one-way bearing, a support shaft 33 is arranged at one side of the first helical gear 32, the support shaft 33 is rotatably installed on the lifting plate 2, the outer periphery of the support shaft 33 is rotatably installed on the shaft seat through a bearing, the shaft seat is fixedly connected with the lifting plate 2 through a support rod, a second helical gear 36 is fixedly installed at one end of the support shaft 33, the second helical gear 36 is engaged with the first helical gear 8, the other end of the supporting shaft 33 is provided with a gear 34, a bar-shaped rack 35 is fixedly arranged in the box body 1, and the gear 34 can be meshed and matched with the bar-shaped rack 35. The lifting plate 2 drives the supporting shaft 33 when moving up and down, the gear 34 moves up and down, the gear 34 can roll along the strip-shaped rack 35, when the lifting plate 2 moves down under the action of gravity of the counterweight device, the gear 34 rolls along the strip-shaped rack 35, the gear 34 drives the supporting shaft 33, the second helical gear 36 rotates, the second helical gear 36 drives the first helical gear 32 to rotate, the first helical gear 32 drives the reciprocating screw 31 to rotate through a one-way bearing, the screw 30 drives the magnet tube 28 to continuously move up and down along the reciprocating screw 31, so that the magnet tube 28 is adjusted up and down, and the counterweight of the counterweight device is adjusted by using the gravity of the counterweight device.

Further, as shown in the figure, in this embodiment, a gear 34 is installed at the other end of the supporting shaft 33 through a first telescopic shaft 40, one end of the first telescopic shaft 40 is fixedly connected with the other end of the supporting shaft 33, the gear 34 is fixedly installed at the other end of the first telescopic shaft 40, a shaft sleeve 41 is rotatably installed at the periphery of the other end of the first telescopic shaft 40 through a bearing, the shaft sleeve 41 is connected with the lifting plate 2 through a spring rod 42, one end of the spring rod 42 is fixedly connected with the shaft sleeve 41, the other end of the spring rod 42 is fixedly connected with a shaft seat of the supporting shaft 33, a sliding rod 43 is fixedly installed at one side of the shaft sleeve 41, a guide plate 44 is fixedly installed in the box 1, and the guide plate 44 includes a vertical plate and an inclined plate. When the lifting plate 2 moves upwards, the sliding rod 43 is positioned on the right side of the vertical plate, the sliding rod 43 is not in contact fit with the vertical plate, when the sliding rod 43 is in contact fit with the right side of the inclined plate, the inclined plate forms rightward thrust on the sliding rod 43, the spring rod 42 and the first telescopic shaft 40 start to be stretched, the sliding rod 43 drives the sliding sleeve 41, the other end of the first telescopic shaft 40 and the gear 34 to move rightwards, and the gear 34 is not in meshing fit with the strip-shaped rack 35 in the lifting process of the lifting plate 2; when the sliding rod 43 slides out of the upper end of the inclined plate, the sliding rod 43 is reset to the left under the action of elastic tension of the spring rod 42, the sliding rod 43 is located on the left side of the inclined plate, when the lifting plate 2 moves downwards, the sliding rod 43 moves along the left side of the inclined plate, the inclined plate can form leftward thrust on the sliding rod 43, so that the spring rod 42 and the first telescopic shaft 40 are compressed until the sliding rod 43 is located on the left side of the vertical plate, the sliding rod 43 slides along the left side of the vertical plate in the downward movement process, the gear 34 is meshed with the strip-shaped rack 35 at the moment, and the gear 34 rolls along the strip-shaped rack 35; when the sliding rod 43 does not move downwards higher than the upper end of the guide plate 44, the gear 34 is not in contact with the strip-shaped rack 35, so that the magnet tube 28 and the vertical tube 20 are fixed relatively in position during the up-and-down movement of the lifting plate 2, and the counterweight of the counterweight device is not changed.

Further, as shown in the drawing, the left side of the vertical plate of the guide plate 44 of the present embodiment is provided with a pawl capable of preventing the slide bar 43 from sliding upward along the left side of the vertical plate. The pawl can prevent the slide bar 43 from sliding upwards along the left side of the riser to avoid the user pulling the pull ring again when the slide bar 43 does not slide out from the lower end of the riser.

Furthermore, as shown in the figure, a first strip-shaped chute is formed in the side wall of the box body 1 in this embodiment, a first slider is fixedly mounted on the side surface of the counterweight plate 21 and the side surface of the lifting plate 2, and the first slider can only move up and down along the first strip-shaped chute; a second strip-shaped sliding groove is formed in the inner wall of the vertical pipe 20, a second sliding block is fixedly mounted on one side of the magnet pipe 28, and the second sliding block can only slide up and down along the second strip-shaped sliding groove. When lifter plate 2, counterweight plate 21 reciprocated, first slider reciprocated along first bar spout, and when magnet pipe 28 reciprocated relatively standpipe 20, the second slider reciprocated along second bar spout, avoided magnet pipe 28 at the internal rotation of standpipe 20.

Furthermore, as shown in the figure, the upper end of the reciprocating screw 31 of the present embodiment is rotatably connected to the lower end of the second telescopic shaft 70 through a one-way bearing, the upper end of the second telescopic shaft 70 is fixedly connected to the rotating shaft of the driving motor 71, and the driving motor 71 is fixedly mounted on the box 1. The driving motor 71 can drive the second telescopic shaft 70 and the reciprocating screw rod 31 to rotate, so that the magnet tube 28 can be electrically adjusted.

Furthermore, as shown in the figure, the side wall of the box body 1 of the present embodiment is provided with an observation window 80. The number of weight plates 21 and the relative positions of the slide rods 43 and the guide plates 44 are conveniently observed through the observation window.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides an arm strength promotes trainer for sports teaching, including box (1), sliding fit installs lifter plate (2) in box (1), set up line hole (3) on box (1), line hole (3) internalization is equipped with stay cord (4), box (1) internal fixation fixed pulley (5), fixed pulley (5) and lifter plate (2) fixed connection are walked around to the one end of stay cord (4), other end fixed mounting pull ring (6) of stay cord (4), its characterized in that: the lifting plate (2) is provided with a counterweight device capable of automatically adjusting counterweight.

2. An arm force lift training device for sports teaching according to claim 1, characterized in that: the counterweight device comprises a vertical pipe (20), the vertical pipe (20) is installed on a lifting plate (2) in a penetrating mode, a plurality of counterweight plates (21) distributed up and down are movably sleeved on the periphery of the vertical pipe (20), the counterweight plates (21) only can move up and down in a box body (1), supporting blocks (22) are fixedly installed on the bottom sides of the counterweight plates (21) respectively, a plurality of through grooves (23) are formed in the periphery of the vertical pipe (20) corresponding to the counterweight plates (21) respectively, a shifting rod (24) is installed in each through groove (23) in a hinged mode, a first magnet (25) is fixedly installed at the lower end of the shifting rod (24), a second magnet (26) is fixedly installed on the bottom side of each through groove (23), the first magnet (25) and the second magnet (26) can be attracted magnetically, a blocking rod (27) is fixedly installed in each through groove (23), a magnet pipe (28) is movably installed in the vertical pipe (20), and a driving device capable of driving the magnet pipe (28) to move up and down is arranged on the lifting plate (2), the magnet pipe (28) can move up and down in the vertical pipe (20), when the magnet pipe (28) is located near the corresponding first magnet (25), the magnet pipe (28) can form magnetic attraction force on the first magnet (25), and the magnetic attraction force of the magnet pipe (28) on the first magnet (25) is larger than the magnetic attraction force of the second magnet (26) on the first magnet (25).

3. An arm force lift training device for sports teaching according to claim 2, characterized in that: the driving device comprises a screw (30), the upper end of a magnet tube (28) is fixedly provided with the screw (30), the screw (30) is internally provided with a reciprocating lead screw (31) in a matched mode, the reciprocating lead screw (31) is rotatably arranged on the lifting plate (2), the top of the reciprocating lead screw (31) is rotatably provided with a first helical gear (32) through a one-way bearing, one side of the first helical gear (32) is provided with a supporting shaft (33), the supporting shaft (33) is rotatably arranged on the lifting plate (2), one end of the supporting shaft (33) is fixedly provided with a second helical gear (36), the second helical gear (36) is meshed with the first helical gear (8), the other end of the supporting shaft (33) is provided with a gear (34), a bar-shaped rack (35) is fixedly arranged in the box body (1), and the gear (34) can be meshed with the bar-shaped rack (35).

4. An arm force lift training device for sports teaching according to claim 3, characterized in that: the other end of back shaft (33) passes through first telescopic shaft (40) installation gear (34), the one end of first telescopic shaft (40) and the other end fixed connection of back shaft (33), the other end fixed mounting gear (34) of first telescopic shaft (40), the periphery of the first telescopic shaft (40) other end passes through bearing rotation installation axle sleeve (41), axle sleeve (41) are connected through spring beam (42) with lifter plate (2), one side fixed mounting slide bar (43) of axle sleeve (41), box (1) internal fixation installation deflector (44).

5. An arm force lift training device for sports teaching according to claim 4, wherein: the left side of the vertical plate of the guide plate (44) is provided with inverted teeth capable of preventing the sliding rod (43) from sliding upwards along the left side of the vertical plate.

6. An arm force lift training device for sports teaching according to claim 2, characterized in that: a first strip-shaped sliding groove is formed in the side wall of the box body (1), a first sliding block is fixedly mounted on the side surface of the counterweight plate (21) and the side surface of the lifting plate (2) respectively, and the first sliding block can only move up and down along the first strip-shaped sliding groove; a second strip-shaped sliding groove is formed in the inner wall of the vertical pipe (20), a second sliding block is fixedly installed on one side of the magnet pipe (28), and the second sliding block can only slide up and down along the second strip-shaped sliding groove.

7. An arm force lift training device for sports teaching according to claim 3, characterized in that: the upper end of the reciprocating screw rod (31) is rotatably connected with the lower end of a second telescopic shaft (70) through a one-way bearing, the upper end of the second telescopic shaft (70) is fixedly connected with a rotating shaft of a driving motor (71), and the driving motor (71) is fixedly installed on the box body (1).

8. An arm force lift training device for sports teaching according to claim 4, wherein: the side wall of the box body (1) is provided with an observation window (80).