CN112843623A

CN112843623A - Multi-functional arm power hoisting device for physical education

Info

Publication number: CN112843623A
Application number: CN202110098259.4A
Authority: CN
Inventors: 周强猛
Original assignee: Changsha Normal University
Current assignee: Changsha Normal University
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-05-28
Anticipated expiration: 2041-01-25
Also published as: CN112843623B

Abstract

The utility model provides a multi-functional for physical education arm power hoisting device, which comprises a supporting plate, circular groove that passes through is seted up respectively at the both ends of backup pad, the circular interior week that passes through the groove rotates the rear side of connecting the ring periphery through the bearing, fixed mounting horizontal pole in the ring, the middle part of backup pad rotates the vice lead screw of the vertical reciprocal lead screw of installation connecting rod, the vice screw and the backup pad sliding fit of reciprocal lead screw are connected, the vice screw fixed connection spring beam's of reciprocal lead screw one end, the first bar rack of other end fixed mounting of spring beam, the coaxial arc rack of upper portion fixed mounting of ring periphery front side, arc rack and the meshing cooperation of the first bar rack that corresponds. The invention has simple structure and ingenious conception, can automatically adjust the size of exercise load in use, reduces the replacement and debugging of the exercise device and improves the exercise efficiency.

Description

Multi-functional arm power hoisting device for physical education

Technical Field

The invention belongs to the field of arm strength exercising devices, and particularly relates to an arm strength lifting device for multifunctional physical education.

Background

Sports education refers to education using physical activities as means, and is interpreted as physical education, which is referred to as sports for short; arm power hoisting device is a common teaching device in the sports teaching, and current arm power exercise device has dumbbell, arm power stick, but current exercise device, and the function singleness lacks the change to make the physical training become boring, need adjust the heavy burden size repeatedly in constantly trying simultaneously, lead to using complex operation, influence the efficiency of taking exercise, can't satisfy the actual demand, so, we have invented a multi-functional arm power hoisting device for physical training.

Disclosure of Invention

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

The invention is realized by the following technical scheme:

an arm force lifting device for multifunctional physical education comprises a supporting plate, wherein circular through grooves are respectively formed in two ends of the supporting plate, the inner circumference of each circular through groove is rotatably connected with the rear side of the outer circumference of a circular ring through a bearing, a cross rod is fixedly installed in the circular ring, a lead screw of a reciprocating lead screw pair with a vertical connecting rod is rotatably installed in the middle of the supporting plate, a nut of the reciprocating lead screw pair is connected with the supporting plate in a sliding fit manner, the nut of the reciprocating lead screw pair is fixedly connected with one end of a spring rod, a first strip-shaped rack is fixedly installed at the other end of the spring rod, a coaxial arc-shaped rack is fixedly installed at the upper part of the front side of the outer circumference of the circular ring, the arc-shaped rack is meshed and matched with the corresponding first strip-shaped rack, a gear is rotatably installed at the lower end of the lead screw of the reciprocating lead screw pair through a one-way bearing, a second strip-shaped rack is, the first dog of bottom side fixed mounting of ring, the downside contact cooperation of first dog is equipped with the second dog, and second dog fixed mounting is in the backup pad.

According to the arm strength lifting device for multifunctional physical education, the upper portion of the front side of the circular ring is fixedly connected with the inner end of the internal thread pipe, the screw rod is installed in the internal thread of the internal thread pipe, and the handle is fixedly installed at the outer end of the periphery of the screw rod.

According to the arm strength lifting device for multifunctional physical education, the third stop blocks are fixedly mounted at the two ends of the front side of the supporting plate respectively, and the first stop blocks can be in contact fit with the third stop blocks.

According to the arm strength lifting device for multifunctional physical education, the nuts and the bolts are fixedly arranged at the two ends of the front side of the supporting plate respectively.

As above an arm power hoisting device is used in multi-functional sports teaching, the upper portion of backup pad correspond circular groove of penetrating and offer the through-hole respectively, rotate installation cross axle through the bearing in the through-hole, the front end fixed mounting pinion of cross axle, the pinion cooperates with the arc rack toothing who corresponds, the coaxial disc of rear end fixed mounting of cross axle, the coaxial sleeve of periphery activity suit of disc, telescopic front end and backup pad fixed connection, the inner of the even fixed connection several little spring bars of periphery of disc, the outer end fixed mounting balancing weight of little spring bar, the outside fixed mounting link of balancing weight, the outer end of several couple is connected through the torsional spring is articulated to telescopic internal corresponding link, one side contact cooperation of couple is equipped with the pin, pin and sleeve fixed connection.

The invention has the advantages that: the invention has simple structure and ingenious conception, can automatically adjust the size of exercise load in use, reduces the replacement and debugging of the exercise device and improves the exercise efficiency. When the invention is used, firstly, the screw rod of the reciprocating screw rod pair is twisted, the nut and the spring rod of the reciprocating screw rod pair are positioned at the lowest part, the spring rod is in a stretched state, the distance of the lower end of the spring rod which is pulled out is shortest, then, two hands respectively hold one cross rod, and forcibly drive the cross rod to drive the circular ring to rotate forward along the axis of the circular ring, as shown in the figure, the top parts of the circular rings move oppositely, the circular rings drive the arc-shaped racks to rotate, the arc-shaped racks drive the first strip-shaped racks to move downwards, the spring rod is continuously stretched, the force required for rotating the cross rod is smaller, the spring rod is easy to stretch, the spring rod continuously rotates along with the circular ring, the arc-shaped racks are meshed with the second strip-shaped racks and drive the second strip-shaped racks to move backwards, the second strip-shaped racks drive the gear to rotate forward, simultaneously, the gear drives the screw rod of the reciprocating screw, thereby causing the spring rod to be further stretched; slowly unloading the acting force on the cross rod, reversely rotating the ring under the action of the pulling force of the spring rod, and simultaneously carrying out the processes in reverse order, wherein the second strip-shaped rack drives the gear to reversely rotate until the first stop block is in contact fit with the second stop block, the ring restores to the initial position, the arc-shaped rack is in meshing fit with the first strip-shaped rack, and the gear cannot drive the screw rod of the reciprocating screw rod pair to rotate through the one-way bearing at the moment, so that when the resistance of the spring rod to the rotating cross rod is small, the arc-shaped rack drives the strip-shaped rack to move in a back direction when the ring rotates in the forward direction each time, the nut of the reciprocating screw rod pair can be gradually adjusted upwards, the resistance of the spring rod to the rotating cross rod is gradually increased, the arm force load is gradually increased, when the ring rotates in the forward direction when the arm force load is sensed, the arc-shaped rack is about to be in meshing fit with the second strip, so that the resistance of the spring rod to the rotating cross rod is not changed; after the screw of reciprocal lead screw pair reachs the top, the resistance of spring beam to the horizontal pole of rotating is the biggest, drive second bar rack dorsad along with the arc rack and remove, can make the screw of reciprocal lead screw pair remove downwards again, thereby make the resistance of spring beam to the horizontal pole of rotating reduce again, reciprocate the in-process at the screw of reciprocal lead screw pair, make the continuous increase and decrease change of resistance to the horizontal pole of rotating of spring beam, thereby make the continuous change of resistance of training arm power, can avoid arm power load to fix for a long time, the arm muscle of avoiding taking exercise forms memory, increase the activity that muscle was taken exercise.

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 an enlarged view of a portion II of FIG. 1; FIG. 4 is an enlarged view of a portion III of FIG. 1; fig. 5 is an enlarged view of a portion iv of fig. 3.

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.

A multifunctional arm force lifting device for physical education comprises a supporting plate 1, wherein two ends of the supporting plate 1 are respectively provided with a circular through groove 2, the circular through grooves 2 are bilaterally symmetrical, the inner periphery of the circular through groove 2 is rotatably connected with the rear side of the outer periphery of a circular ring 3 through a bearing, a cross rod 4 is fixedly installed in the circular ring 3, the axis of the cross rod 4 is vertically intersected with the axis of the circular ring 3, two ends of the cross rod 4 are respectively and fixedly connected with the inner periphery of the circular ring 3, the middle part of the supporting plate 1 is rotatably provided with a lead screw of a vertical reciprocating lead screw pair 12, two ends of the outer periphery of the lead screw of the reciprocating lead screw pair 12 are rotatably provided with shaft seats through bearings, the shaft seats are fixedly connected with the supporting plate 1, a nut of the reciprocating lead screw pair 12 is connected with the supporting plate 1 in a sliding fit manner, the nut of the reciprocating lead screw pair 12 is fixedly connected with a slide, a nut of the reciprocating screw pair 12 is fixedly connected with one end of a spring rod 5, the spring rod 5 is always in a stretched state, a first strip-shaped rack 6 is fixedly installed at the other end of the spring rod 5, a coaxial arc-shaped rack 7 is fixedly installed at the upper part of the front side of the periphery of the ring 3, the arc-shaped rack 7 is meshed and matched with the corresponding first strip-shaped rack 6, the arc-shaped rack 7 is always meshed and matched with the corresponding first strip-shaped rack 6, a gear 8 is rotatably installed at the lower end of a screw of the reciprocating screw pair 12 through a one-way bearing, a second strip-shaped rack 9 is meshed and matched with the rear side of the gear 8, strip-shaped tooth grooves are respectively arranged at the front side and the top side of the second strip-shaped rack 9, the second strip-shaped rack 9 is slidably installed on the supporting plate 1, the second strip-shaped rack 9 is fixedly connected with a slide block of a, arc rack 7 can cooperate with the tooth's socket meshing on the second bar rack 9 top side that corresponds, the first dog 10 of bottom side fixed mounting of ring 3, and the downside contact cooperation of first dog 10 is equipped with second dog 11, and second dog 11 fixed mounting is in backup pad 1. The invention has simple structure and ingenious conception, can automatically adjust the size of exercise load in use, reduces the replacement and debugging of the exercise device and improves the exercise efficiency. When the invention is used, firstly, a screw rod of a reciprocating screw rod pair 12 is screwed, a nut of the reciprocating screw rod pair 12 and a spring rod 5 are positioned at the lowest position, at the moment, the spring rod 5 is in a stretched state, the distance of pulling out the lower end of the spring rod 5 is shortest, then, two hands respectively hold a cross rod 4, and force is used for enabling the cross rod 4 to drive a circular ring 3 to rotate forward along the axis of the circular ring 3, as shown in figure 1, the top of the circular ring 3 moves oppositely, the circular ring 3 drives an arc rack 7 to rotate, the arc rack 7 drives a first strip rack 6 to move downwards, the spring rod 5 is continuously stretched, at the moment, the force required for rotating the cross rod 4 is smaller, the spring rod 5 is easy to be stretched and rotates continuously along with the circular ring 3, the arc rack 7 is meshed with a second strip rack 9 and drives the second strip rack 9 to move backwards, the second strip rack 9 drives a gear 8 to rotate forward, and simultaneously, the gear 8 drives the screw rod of the reciprocating screw rod, the nut of the reciprocating screw pair 12 starts to move upwards, so that the spring rod 5 is further stretched; slowly unloading the acting force on the cross rod 4, reversely rotating the ring 3 under the action of the pulling force of the spring rod 5, and simultaneously carrying out the processes in reverse order, wherein the second strip-shaped rack 9 drives the gear 8 to reversely rotate until the first stop block 10 is in contact fit with the second stop block 11, the ring 3 restores to the initial position, the arc-shaped rack 7 is in meshing fit with the first strip-shaped rack 6, at the moment, the gear 8 cannot drive the screw rod of the reciprocating screw rod pair 12 to rotate through a one-way bearing, so that when the resistance of the spring rod 5 to the rotating cross rod 4 is small, the arc-shaped rack 7 drives the strip-shaped rack 9 to move backwards when the ring 3 rotates forwards each time, the screw of the reciprocating screw rod pair 12 can be gradually adjusted upwards, the resistance of the spring rod 5 to the rotating cross rod 4 is gradually increased, the arm force load is gradually increased, and when the arm force load is sensed to be proper, the ring 3 rotates forwards, when the arc-shaped rack 7 is about to be meshed and matched with the second strip-shaped rack 9, the acting force on the cross rod 4 is removed, so that the resistance of the spring rod 5 to the rotating cross rod 4 is not changed; after the screw of reciprocal lead screw pair 12 reachs the top, the resistance of spring beam 5 to rotating horizontal pole 4 is the biggest, drive second bar rack 9 dorsad removal along with arc rack 7, can make the screw of reciprocal lead screw pair 12 remove downwards again, thereby make the resistance of spring beam 5 to rotating horizontal pole 4 reduce again, at the screw of reciprocal lead screw pair 12 in-process that reciprocates, make the continuous increase and decrease change of resistance of spring beam 5 to rotating horizontal pole 4, thereby make the continuous change of resistance of training arm power, can avoid arm power load long-term fixed, the arm muscle of avoiding taking exercise forms memory, increase the activity that muscle was taken exercise.

Specifically, as shown in the drawing, the upper portion of the front side of the ring 3 according to the present embodiment is fixedly connected to the inner end of the female screw tube 20, the screw 21 is internally threaded in the female screw tube 20, and the handle 22 is fixedly attached to the outer end of the outer periphery of the screw 21. Can install handle 22 and lead screw 21 in internal thread pipe 20 through the mode of screw thread installation, rotate ring 3 through handle 22, lead screw 21, internal thread pipe 20, increase the arm of force that rotates ring 3, further reduce the resistance that rotates ring 3, reach the effect that the arm power stick was taken exercise, increase the variety of taking exercise mode.

Specifically, as shown in the drawings, the third stoppers 30 are respectively fixedly mounted at two ends of the front side of the supporting plate 1 according to the embodiment, and the first stopper 10 can be in contact fit with the third stoppers 30. When the first stop block 10 is in contact fit with the third stop block 30, the circular ring 3 rotates forwards to the tail end, and at the moment, the arc-shaped rack 7 is meshed with the first strip-shaped rack 6 for fit.

Further, as shown in the drawings, nuts 40 are respectively fixed at two ends of the front side of the support plate 1 according to the embodiment, and the nuts 40 are internally threaded with bolts 41. Screwing the bolt 41 inwards to enable the first stop block 10 to be in contact fit with the inner end of the bolt 41, and preventing the first stop block 10 from continuing to rotate forwards along with the ring 3, so that the arc-shaped rack 7 is prevented from being in meshed fit with the second strip-shaped rack 9.

Furthermore, as shown in the figures, the upper portion of the supporting plate 1 described in this embodiment is provided with through holes 50 corresponding to the circular through grooves 2, a horizontal shaft 51 is rotatably installed in the through holes 50 through bearings, a pinion 52 is fixedly installed at the front end of the horizontal shaft 51, the pinion 52 is engaged with the corresponding arc-shaped rack 7, a coaxial disc 53 is fixedly installed at the rear end of the horizontal shaft 51, a coaxial sleeve 54 is movably sleeved on the outer periphery of the disc 53, the front end of the sleeve 54 is fixedly connected with the supporting plate 1, the rear end of the sleeve 54 is closed, the outer periphery of the disc 53 is uniformly and fixedly connected with the inner ends of a plurality of small spring rods 55, a balancing weight 56 is fixedly installed at the outer end of the small spring rods 55, a hanging ring 59 is fixedly installed at the outer side of the balancing weight 56, the inner periphery of the sleeve 54 is hinged with the outer ends of a plurality of hooks 57, the structures inside the sleeves 54 on the left and right sides are bilaterally symmetrical. When the circular ring 3 rotates forwards quickly, the arc-shaped rack 7 drives the pinion 52, the transverse shaft 51 and the disc 53 to rotate forwards, meanwhile, the disc 53 drives the small spring rod 55, the balancing weight 56 and the hanging ring 59 to rotate forwards, centrifugal force generated by the balancing weight 56 and the hanging ring 59 is thrown outwards, the small spring rod 55 is stretched, the hanging ring 59 can be in contact fit with one side of the hook 57, which is far away from the hook 57, so that the hook 57 rotates against the resistance of the torsion spring, the hook 57 is separated from the stop lever 58 until the hanging ring 59 is separated from the hook 57, the hook 57 resets under the action of the torsion spring, and the hook 57 is in contact fit with the stop lever 58 again; similarly, when the quick antiport of ring 3, link 59 and couple 57 have one side contact cooperation of hook to make couple 57 articulate with link 59, thereby make disc 53, pinion 52 unable rotation, make ring 3 unable rotation, thereby avoid the horizontal pole 4 to take off the hand after ring 3 fast rotation resets the harm that causes, couple 57 and link 59 keep articulating, after making ring 3 continue forward rotation a section angle, couple 57 and link 59 separation.

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 a multi-functional arm power hoisting device for sports teaching which characterized in that: comprises a supporting plate (1), wherein circular through grooves (2) are respectively formed at two ends of the supporting plate (1), the inner circumference of each circular through groove (2) is rotatably connected with the rear side of the outer circumference of a circular ring (3) through a bearing, a cross rod (4) is fixedly installed in the circular ring (3), a lead screw of a vertical reciprocating lead screw pair (12) of a connecting rod is rotatably installed in the middle of the supporting plate (1), a nut of the reciprocating lead screw pair (12) is connected with the supporting plate (1) in a sliding fit manner, the nut of the reciprocating lead screw pair (12) is fixedly connected with one end of a spring rod (5), a first strip-shaped rack (6) is fixedly installed at the other end of the spring rod (5), a coaxial arc-shaped rack (7) is fixedly installed at the upper part of the front side of the outer circumference of the circular ring (3), the arc-shaped rack (7) is meshed and matched with the corresponding first strip-shaped rack (6), a, the rear side meshing cooperation of gear (8) is equipped with second bar rack (9), second bar rack (9) sliding fit installs on backup pad (1), arc rack (7) can cooperate with the tooth's socket meshing on second bar rack (9) top side that corresponds, the first dog of bottom side fixed mounting (10) of ring (3), the downside contact cooperation of first dog (10) is equipped with second dog (11), second dog (11) fixed mounting is on backup pad (1).

2. The multifunctional arm force lifting device for physical education as claimed in claim 1, wherein: the upper part of the front side of the circular ring (3) is fixedly connected with the inner end of the internal thread pipe (20), the internal thread of the internal thread pipe (20) is provided with a screw rod (21), and the outer end of the periphery of the screw rod (21) is fixedly provided with a handle (22).

3. The multifunctional arm force lifting device for physical education as claimed in claim 1, wherein: and the two ends of the front side of the support plate (1) are respectively and fixedly provided with a third stop block (30), and the first stop block (10) can be in contact fit with the third stop block (30).

4. The multifunctional arm force lifting device for physical education as claimed in claim 1, wherein: and nuts (40) are respectively fixedly arranged at two ends of the front side of the support plate (1), and bolts (41) are arranged in the nuts (40) through internal threads.

5. The multifunctional arm force lifting device for physical education as claimed in claim 1, wherein: the upper part of the supporting plate (1) is provided with through holes (50) corresponding to the circular through grooves (2) respectively, a transverse shaft (51) is rotatably arranged in each through hole (50) through a bearing, a pinion (52) is fixedly arranged at the front end of each transverse shaft (51), the pinions (52) are meshed and matched with the corresponding arc-shaped racks (7), coaxial discs (53) are fixedly arranged at the rear ends of the transverse shafts (51), coaxial sleeves (54) are movably sleeved on the peripheries of the discs (53), the front ends of the sleeves (54) are fixedly connected with the supporting plate (1), the peripheries of the discs (53) are uniformly and fixedly connected with the inner ends of a plurality of small spring rods (55), balancing weights (56) are fixedly arranged at the outer ends of the small spring rods (55), hanging rings (59) are fixedly arranged at the outer sides of the balancing weights (56), the inner peripheries of the sleeves (54) are hinged and connected with the outer ends of a plurality of hooks (57) through torsion springs, one side of, the stop lever (58) is fixedly connected with the sleeve (54).