CN112957650A - High jump hack lever device with automatic reset function and use method thereof - Google Patents
High jump hack lever device with automatic reset function and use method thereof Download PDFInfo
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- CN112957650A CN112957650A CN202110299300.4A CN202110299300A CN112957650A CN 112957650 A CN112957650 A CN 112957650A CN 202110299300 A CN202110299300 A CN 202110299300A CN 112957650 A CN112957650 A CN 112957650A
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- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
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Abstract
The high jump hack lever device with the automatic reset function comprises a base, a small cylinder end, a transverse turning head, a longitudinal turning head and a cross rod sleeve; the device is characterized in that directional arrows are arranged on the bases, and the directional arrows on the left base and the right base are in a mirror image relationship; a bottom cylinder is arranged in the middle of the base, and a bottom knob is arranged on the bottom cylinder; the middle cylinder is inserted into the bottom cylinder, and the bottom knob is rotated to fix or loosen the clamping of the bottom cylinder to the middle cylinder; the side surface of the small cylinder is provided with a small cylinder groove which is matched with a convex groove arranged in the middle cylinder, so that the small cylinder can only move up and down in the middle cylinder; the top end of the small cylinder is provided with a small cylinder end head, and one side of the small cylinder end head is provided with a transverse limiting head. The invention utilizes the principle that magnets attract in opposite phases and springs can automatically reset in a certain deformation range, thereby reducing the difficulty of use and installation and improving the use efficiency.
Description
Technical Field
The invention relates to the technical field of sports equipment, in particular to a high jump hack lever device with an automatic reset function.
Background
The high jump is one of the track and field events, it is composed of rhythmic running-up, single foot take-off, jumping over the high jump rod and falling to the ground, the high jump is used to calculate the result, the high jump needs the high jump apparatus, the high jump apparatus made by the existing technology has the defect of different degrees.
For example: the patent technology of Fujian Bongzhen administrative traffic profession institute 'a sports training apparatus for high jump (grant bulletin No. CN 212038748U) has the beneficial effects that' two high jump rods are connected through a first magnet and a second magnet, when the high jump height of a sportsman is not enough to touch the high jump rods, the two high jump rods are separated by a downward force given to the high jump rods, the sportsman falls to a protection pad from the middle of the two high jump rods, the high jump rods return to the original position under the action of an elastic hinge, the high jump rods cannot fall to the ground, the danger to the sportsman is avoided, the rods do not need to be manually installed again, the high jump rods are high in automatic resetting speed, the time is saved, and the training is convenient. However, the patent does not deal with the transverse impact of the jumping bar caused by insufficient jumping height of the jumping person due to the defects of the structural design, so that the danger that the jumping bar is injured due to the transverse impact of the jumping bar caused by the jumping person is existed, and then, the jumping bar is possibly pressed downwards by the jumping person to droop by more than 45 degrees, when the jumping bar returns to the original position under the action of the elastic hinge, how to deal with the inertia of the jumping bar, how to ensure that the jumping bar is just reset to the horizontal state, how to ensure the alignment of the first magnet and the second magnet, and the like, and the patent does not relate to the technology.
The patent technology of the department of sports of the science and technology academy of Heilongjiang "a high jump stand cross bar (grant bulletin No. CN 202398019U), the cross bar is divided into a plurality of sections, and the beneficial effects are that: when the body of a trainer collides with a certain cross rod unit or the connecting end surface, one end of the spring piece can slide out of the counter bore, the two annular magnetic sheets are quickly disconnected, the cross rod unit cannot be broken when sliding down, and the trainer is not easy to be injured; however, the spring leaf that jumps out has the danger of hurting people, and the repacking can not be very quick.
The patent technology of the university of Qizihaer, a high jump stand for training (No. CN 204932699U), has the advantages that the patent is established on the premise that a sportsman only touches a middle cross bar when picking up and dropping down, once the sportsman touches an end cross bar when picking up and dropping down, the sportsman is difficult to be injured because the end cross bar is fixed; and when the athlete presses the middle cross bar to droop for more than 60 degrees, the spring in the end cross bar can be deformed; the horizontal resetting of the middle horizontal bar is difficult to realize.
According to the patent specification and the expression of the drawing of the specification, the ends of the two end rods are fixed by the nylon fastener tape, the end rods can shake in a windy outdoor meeting and shake, the height of the whole transverse rod can be suddenly changed, so that the athlete can make judgment errors, and the training score is influenced.
The patent discloses a high jump regulator for sports training (grant publication No. CN205391544U 0) of the sports academy of Hexi institute, which utilizes balancing weights at two sides to straighten a pull rope, the resetting is fast, but when a player lifts the pull rope without exceeding the pull rope and falls down, the player is in danger of being stumbled by the pull rope and being hurt; when the stay cord resets fast, the collision and the extrusion of magnet with higher speed can neither ensure two magnetic paths and counterpoint correctly, also make the broken damage of magnet crushing easily.
The patent technology of a high jump stand convenient for height adjustment (grant publication No. CN 207055778U) only considers the transverse impact force of the high jump impact cross bar of a player, ignores the vertical impact force of the high jump impact cross bar of the player and has no application value.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a high jump hack lever device with an automatic reset function.
The technical scheme adopted by the invention is as follows: the high jump hack lever device with the automatic reset function comprises a base, a small cylinder end, a transverse turning head, a longitudinal turning head and a cross rod sleeve; the device is characterized in that directional arrows are arranged on the bases, and the directional arrows on the left base and the right base are in a mirror image relationship; a bottom cylinder is arranged in the middle of the base, and a bottom knob is arranged on the bottom cylinder; the middle cylinder is inserted into the bottom cylinder, and the bottom knob is rotated to fix or loosen the clamping of the bottom cylinder to the middle cylinder; the side surface of the middle cylinder is provided with a middle cylinder groove which is matched with a convex groove arranged in the bottom cylinder, and the middle cylinder can only move up and down in the bottom cylinder; the upper end of the middle cylinder is provided with middle cylinder opening threads; the middle knob can be screwed into the opening thread of the middle cylinder; the small cylinder is inserted into the middle cylinder, and the middle knob is rotated to fix or loosen the clamping of the opening thread of the middle cylinder on the small cylinder; the side surface of the small cylinder is provided with a small cylinder groove which is matched with a convex groove arranged in the middle cylinder, so that the small cylinder can only move up and down in the middle cylinder; the top end of the small cylinder is provided with a small cylinder end head, and one side of the small cylinder end head is provided with a transverse limiting head; the transverse limiting head limits the first coil spring to drive the transverse turning head to rotate to be consistent with the angle in the direction indicated by the directional arrow, and then the transverse limiting head stops rotating; a rotating shaft sleeve and an external thread are arranged below the rotating shaft bolt, the external thread penetrates through the vertical through hole of the steering head and is screwed into the internal thread in the middle of the end head of the small cylinder, and the transverse steering head is limited to rotate transversely only at the top of the end head of the small cylinder; a cylinder is arranged on the rotating shaft bolt, a first coil spring limiting head is arranged above the cylinder, and the first coil spring is sleeved in the middle of the first coil spring limiting head; the transverse steering head is provided with a first coil spring limiting head, a longitudinal steering joint, a support block, a first limiting head and a steering head vertical through hole; the longitudinal rotary head limiting block only allows the longitudinal rotary head to drive the outer sleeve to rotate upwards to a horizontal state; the supporting block is provided with a damping rubber head; a second limiting head and a second coil spring limiting head are arranged on the side surface of the longitudinal rotary head; a second coil spring is arranged in the middle of the second coil spring limiting head; an outer sleeve is sleeved at the outer end of the longitudinal rotary head, and an outer magnetic ring is arranged in the middle of the outer sleeve; the inner sleeve is arranged in the outer sleeve, the inner end of the inner sleeve is provided with an inner magnetic ring, and the outer end of the inner sleeve is fixed on the outer joint; a first magnetic ring is arranged in the middle of the outer joint, and a first anti-collision ring is arranged outside the first magnetic ring; one end of the spring ring is fixed with the longitudinal rotary joint, and the other end of the spring ring is fixed with the external joint; when the outer magnetic ring and the inner magnetic ring are close to each other and adsorbed together, the spring ring has no inward or outward elasticity; when the inner magnetic ring moves towards the outer sleeve beyond the outer magnetic ring, the spring ring is pressed and generates outward elasticity; when the inner magnetic ring moves to the outside of the outer sleeve beyond the outer magnetic ring, the spring ring can be pulled, and the spring ring can generate inward tension; the transverse limiting head, the first coil spring limiting head, the first limiting head, the second coil spring limiting head and the second coil spring are arranged on the left base and the right base and are in a mirror image relationship with each other; the two ends of the cross rod sleeve are respectively provided with a cross rod end, a second magnetic ring is arranged in the middle of the outer end of the cross rod end, and a second magnetic ring anti-collision ring is arranged outside the second magnetic ring; a through hole in the middle of the second magnetic ring is provided with a magnetic limiting nail, and a nail head is arranged behind the magnetic limiting nail; the diameter size of the magnetism-attracting limiting nail is smaller than that of the through hole in the middle of the second magnetic ring, the magnetism-attracting limiting nail is always arranged in the through hole in the middle of the second magnetic ring under the magnetic effect of the second magnetic ring, pressure is applied to the magnetism-attracting limiting nail to enable the magnetism-attracting limiting nail to slide inwards but not be pulled out, and when the pressure is eliminated, the magnetism-attracting limiting nail can automatically reset under the magnetic effect of the second magnetic ring.
The cross rod sleeve, the outer sleeve, the inner sleeve and the outer joint are all made of light materials with high tensile strength; the cross bar ends at the two ends of the cross bar sleeve are made of non-magnetic materials; the first anti-collision ring and the second anti-collision ring are made of elastic materials with smooth exterior.
The magnetism of the outward surfaces of the second magnetic rings in the cross rod ends at the two ends of the cross rod sleeve is the same, and the magnetism of the inward surfaces of the second magnetic rings is the same.
The magnetism of the outward surface of the first magnetic ring is opposite to that of the outward surface of the second magnetic ring.
The diameter size of the magnetism-attracting limiting nail is smaller than that of the through hole in the middle of the second magnetic ring, and the diameter size of the magnetism-attracting limiting nail is also smaller than that of the through hole in the middle of the first magnetic ring.
The outer end head of the second coil spring is pulled out from the first limiting head, so that the elastic force of the second coil spring does not support the longitudinal rotary head to be turned upwards any more, the longitudinal rotary head can naturally hang downwards, and all parts arranged on the hanging longitudinal rotary head cannot collide with the small cylinder and all parts below the small cylinder under the action of the damping rubber head.
When the inner magnetic ring moves beyond 30mm beyond the outer magnetic ring towards the inside and the outside of the outer sleeve, the inner magnetic ring is limited by a mechanism arranged between the outer sleeve and the inner sleeve and can not move any more.
When the first magnetic ring and the second magnetic ring are close to each other and mutually attracted, and the attraction force between the first magnetic ring and the second magnetic ring is larger than that when the inner magnetic ring moves to the outside of the outer sleeve barrel within 20mm beyond the outer magnetic ring, the longitudinal rotary joint and the outer joint pull the spring ring to force the sum of the pulling force generated by the spring ring and the downward falling force of all parts on the cross rod sleeve barrel and the cross rod sleeve barrel; when the inner magnetic ring moves within 20mm towards the outer sleeve beyond the outer magnetic ring, the longitudinal rotary head and the outer joint press the spring ring to force the sum of the elastic force generated by the spring ring and the downward dropping force of the cross rod sleeve and all parts on the cross rod sleeve; and the attraction force generated between the outer magnetic ring and the inner magnetic ring when the outer magnetic ring and the inner magnetic ring are attracted together is also larger than the sum of the downward falling force of the cross rod sleeve and all parts on the cross rod sleeve.
By adopting the technical scheme of the invention, the invention has the following beneficial effects:
1) the invention utilizes the principle that magnets attract oppositely and the principle that the spring can automatically reset in a certain deformation range, so that the left base and the right base can be not accurately placed, the mounting difficulty is reduced, and the use efficiency is improved;
2) the invention utilizes the function of restoring of the coil spring to enable the longitudinal rotating heads at the two ends to be quickly restored, and when the transverse rod sleeve is conveniently installed, the magnetic ring on the inner sleeve is connected with the magnetic ring on the transverse rod sleeve in a magnetic absorption way;
3) the magnetic-attracting limiting nail is positioned by utilizing magnetism, the magnetic-attracting limiting nail can have the functions of elasticity and automatic reset without a spring, and after the magnetic attraction alignment of the two magnetic rings is accurate, the magnetic-attracting limiting nail can automatically enter the through hole of the first magnetic ring, so that the quick positioning can be realized, and the transverse rod can be kept flat;
4) the anti-collision ring is made of elastic materials with smooth outer parts, so that the magnetic attraction alignment of the two magnetic rings is facilitated, and the damage caused by the direct collision of the two magnetic rings can be prevented;
5) the impact of athletes to all directions of the cross bar can trigger the separation between the magnetic rings when jumping, the safety of the invention is guaranteed;
6) the cross rod sleeve is made of light materials with high tensile strength, is not easy to damage and is not easy to cause collision injury to athletes;
7) the spring devices in the outer sleeve and the inner sleeve still do not influence the reset installation of the cross bar when the jumping of athletes causes the jumping stand device to swing and shift, and the invention has stronger adaptability;
8) because the upright post is provided with the limiting device, after the height of the upright post is adjusted, the resetting and installation of the cross rod are not influenced because the axial lead of the outer sleeve 42 is always superposed with the direction line indicated by the following direction arrow 11.
Drawings
FIG. 1 is a perspective view of the present invention (with the cross bar in place);
FIG. 2 is a perspective view of the portion A of the present invention (the longitudinal swivel is horizontal);
FIG. 3 is a cross-sectional view of the part B of the present invention (the schematic view when the magnet ring on the cross bar and the magnet on the inner sleeve are attracted together and the structural schematic view of the part B;
FIG. 4 is a perspective view of the C portion of the present invention (with the cross bar in place);
FIG. 5 is a cross-sectional view of the D-section of the present invention (with the longitudinal turn horizontal);
FIG. 6 is a schematic view showing the construction of the D portion of the present invention (the longitudinal rotary joint is not horizontal);
FIG. 7 is a perspective view of the D portion of the present invention (viewed from the other direction, with the longitudinal turnabout not horizontal);
FIG. 8 is a schematic view of the cross-bar sleeve end configuration at location B of the present invention;
FIG. 9 is a schematic view of the structure of the site E of the present invention.
In the figure: the anti-collision device comprises a base 10, a direction arrow 11, a bottom cylinder 12, a bottom knob 13, a middle cylinder 14, a middle cylinder groove 15, a middle cylinder opening thread 16, a middle knob 17, a small cylinder 18, a small cylinder groove 19, a small cylinder end 20, a transverse limiting head 21, a rotating shaft bolt 22, a first coil limiting head 23, a rotating shaft sleeve 24, an external thread 25, a first coil 26, a transverse rotating head 30, a first coil limiting head 31, a longitudinal rotating head limiting block 32, a longitudinal rotating head joint 33, a support block 34, a first limiting head 35, a damping rubber head 36, a rotating head vertical through hole 37, a longitudinal rotating head 40, a second limiting head 41, an external sleeve 42, a second coil limiting head 42a, an external magnet ring 43, a second coil 43a, an internal sleeve 44, an internal magnet ring 45, a coil ring 46, an external connector 47, a first magnet ring 48, a first anti-collision ring 49, a cross rod sleeve 50, a cross rod end 51, a second magnet anti-collision ring 52, A second magnetic ring 53, a magnetic limiting nail 54 and a nail head 55.
Detailed Description
The invention is further illustrated by the following figures and examples: as shown in fig. 1 to 9, the jumping stand bar device with automatic reset function includes a base 10, a small cylinder end 20, a transverse turning head 30, a longitudinal turning head 40, and a cross bar sleeve 50; the device is characterized in that the upper surface of the base 10 is provided with a direction arrow 11, and the direction arrows 11 on the left base 10 and the right base 10 are in a mirror image relationship; a bottom cylinder 12 is arranged in the middle of the base 10, and a bottom knob 13 is arranged on the bottom cylinder 12; the middle cylinder 14 is inserted into the bottom cylinder 12, and the bottom knob 13 is turned to fix or loosen the clamping of the bottom cylinder 12 on the middle cylinder 14; the side surface of the middle cylinder 14 is provided with a middle cylinder groove 15, the middle cylinder groove 15 is matched with a convex groove arranged in the bottom cylinder 12, and the middle cylinder 14 can only move up and down in the bottom cylinder 12; the upper end of the middle cylinder 14 is provided with a middle cylinder opening thread 16; the middle knob 17 can be screwed into the middle cylinder opening thread 16; the small cylinder 18 is inserted into the middle cylinder 14, and the middle knob 17 can be screwed to fix or loosen the clamping of the middle cylinder opening thread 16 on the small cylinder 18; the side surface of the small cylinder 18 is provided with a small cylinder groove 19, and the small cylinder groove 19 is matched with a convex groove arranged in the middle cylinder 14, so that the small cylinder 18 can only move up and down in the middle cylinder 14; a small cylinder end 20 is arranged at the top end of the small cylinder 18, and a transverse limiting head 21 is arranged on one side of the small cylinder end 20; the transverse limiting head 21 stops when limiting the first coil spring 26 to drive the transverse turning head 30 to rotate to the angle consistent with the direction indicated by the directional arrow 11; a rotating shaft sleeve 24 and an external thread 25 are arranged below the rotating shaft bolt 22, the external thread 25 penetrates through the vertical through hole 37 of the steering head and is screwed into the internal thread in the middle of the small cylinder end 20, and the transverse steering head 30 is limited to transversely rotate only at the top of the small cylinder end 20; a cylinder is arranged on the rotating shaft bolt 22, a first coil spring limiting head 23 is arranged above the cylinder, and a first coil spring 26 is sleeved in the middle of the first coil spring limiting head 23; the transverse steering head 30 is provided with a first coil spring limiting head 31, a longitudinal steering head limiting block 32, a longitudinal steering head joint 33, a support block 34, a first limiting head 35 and a steering head vertical through hole 37; the longitudinal turning head limiting block 32 only allows the longitudinal turning head 40 to drive the outer sleeve 42 to rotate upwards to a horizontal state; when the longitudinal turning limiting block 32 drives the outer sleeve 42 to rotate up and down, the axial lead of the outer sleeve 42 is always superposed with the direction line indicated by the direction arrow 11 below; the supporting block 34 is provided with a damping rubber head 36; a second limiting head 41 and a second coil spring limiting head 42a are arranged on the side surface of the longitudinal rotary head 40; a second coil spring 43a is arranged in the middle of the second coil spring limiting head 42 a; an outer sleeve 42 is sleeved at the outer end of the longitudinal rotary head 40, and an outer magnetic ring 43 is arranged in the middle of the outer sleeve 42; an inner sleeve 44 is arranged in the outer sleeve 42, an inner magnetic ring 45 is arranged at the inner end of the inner sleeve 44, and the outer end of the inner sleeve 44 is fixed on an outer joint 47; a first magnetic ring 48 is arranged in the middle of the outer joint 47, and a first anti-collision ring 49 is arranged outside the first magnetic ring 48; one end of the spring ring 46 is fixed with the longitudinal rotary joint 40, and the other end is fixed with the external joint 47; when the outer magnetic ring 43 and the inner magnetic ring 45 are close to and attracted together, the spring ring 46 has no inward or outward elasticity; when the inner magnetic ring 45 moves past the outer magnetic ring 43 toward the inner sleeve 42, the spring ring 46 is pressed, and the spring ring 46 generates an outward elastic force; when the inner magnetic ring 45 moves beyond the outer magnetic ring 43 to the outside of the outer sleeve 42, the spring ring 46 is pulled, and the spring ring 46 generates inward pulling force; the transverse limiting heads 21, the first coil springs 26, the first coil spring limiting heads 31, the first limiting heads 35, the second limiting heads 41, the second coil spring limiting heads 42a and the second coil springs 43a are arranged on the left base 10 and the right base 10 and are in mirror image relationship with each other; two ends of the cross rod sleeve 50 are respectively provided with a cross rod end 51, a second magnetic ring 53 is arranged in the middle of the outer end of the cross rod end 51, and a second magnetic ring anti-collision ring 52 is arranged outside the second magnetic ring 53; a magnetism-attracting limiting nail 54 is arranged in a through hole in the middle of the second magnetic ring 53, and a nail head 55 is arranged behind the magnetism-attracting limiting nail 54; the diameter of the magnetic limiting nail 54 is smaller than that of the through hole in the middle of the second magnetic ring 53, the magnetic limiting nail 54 is always arranged in the through hole in the middle of the second magnetic ring 53 under the magnetic effect of the second magnetic ring 53, the magnetic limiting nail 54 can slide inwards but cannot be pulled out by applying pressure to the magnetic limiting nail 54, and when the pressure is eliminated, the magnetic limiting nail 54 can automatically reset under the magnetic effect of the second magnetic ring 53.
The cross bar sleeve 50, the outer sleeve 42, the inner sleeve 44 and the outer joint 47 are all made of light materials with high tensile strength; the cross bar ends 51 at the two ends of the cross bar sleeve 50 are made of non-hydrophilic magnetic materials; the first anti-collision ring 49 and the second anti-collision ring 52 are made of elastic materials with smooth outer parts.
The magnetism of the outward side of the second magnetic ring 53 in the cross bar end 51 at the two ends of the cross bar sleeve 50 is the same, and the magnetism of the inward side is the same.
The magnetism of the outward surface of the first magnetic ring 48 is opposite to that of the outward surface of the second magnetic ring 53.
The diameter of the magnetism-attracting limiting nail 54 is smaller than that of the through hole in the middle of the second magnetic ring 53, and the diameter of the magnetism-attracting limiting nail 54 is also smaller than that of the through hole in the middle of the first magnetic ring 48.
The outer end of the second coil spring 43a is pulled out from the first limiting head 35, so that the elastic force of the second coil spring 43a no longer supports the longitudinal rotary head 40 to be turned upwards, the longitudinal rotary head 40 naturally hangs downwards, and all parts arranged on the vertical rotary head 40 which hangs downwards do not collide with the small cylinder 18 and all parts below the small cylinder 18 under the action of the shock absorption rubber head 36.
When the inner ring 45 moves beyond the outer ring 43 more than 30mm into and out of the outer sleeve 42, it will be restrained from further movement by the mechanism provided between the outer sleeve 42 and the inner sleeve 44.
When the first magnetic ring 48 and the second magnetic ring 53 approach and attract each other, and the attraction force between the two is larger than that when the inner magnetic ring 45 moves to the outside of the outer sleeve 42 within 20mm beyond the outer magnetic ring 43, the longitudinal rotary joint 40 and the outer joint 47 pull the spring ring 46, so that the pulling force generated by the spring ring 46 is added to the sum of the downward falling forces of all the parts on the cross rod sleeve 50 and the cross rod sleeve 50; when the inner magnetic ring 45 moves within 20mm beyond the outer magnetic ring 43 towards the outer sleeve 42, the longitudinal rotary joint 40 and the outer joint 47 press the spring ring 46, so that the elastic force generated by the spring ring 46 is added to the sum of the downward dropping force of the cross rod sleeve 50 and all parts on the cross rod sleeve 50; and is larger than the sum of the attraction force generated between the outer magnetic ring 43 and the inner magnetic ring 45 when the two are attracted together and the downward dropping force of the crossbar sleeve 50 and all the components on the crossbar sleeve 50.
The use method of the high jump hack lever device with the automatic reset function comprises the following steps:
1) a pair of parts are complete, two bases 11 arranged in a mirror image mode are oppositely placed in a high jump place with a flat ground, and direction arrows 11 on the bases 11 are opposite and form a straight line;
2) the distance between the two is adjusted, the distance between the first magnetic rings 48 on the horizontal inner sleeve 44 is slightly equal to the length distance between the outer top ends of the magnetism-attracting limit pins 54 arranged at the two ends of the cross rod sleeve 50, and the positive and negative deviation is controlled within 30 mm;
3) adjusting and unifying the heights of the two sides;
4) a high jump pad is arranged between the two bases 11;
5) aligning and attracting a first magnetic ring 48 on the crossbar sleeve 50 to a first magnetic ring 48 on one of the bases 11;
6) the two magnetic rings are extruded and aligned in parallel, so that the magnetically-philic limit pins 54 in the first magnetic ring 48 enter the through holes of the first magnetic ring 48, and the two are completely aligned;
7) aligning the other first magnetic ring 48 on the crossbar sleeve 50 with the other first magnetic ring 48 on the base 11 and enabling the two to be mutually adsorbed together;
8) and (3) carrying out parallel extrusion alignment on the two magnetic rings, so that the magnetism-attracting limit pins 54 in the first magnetic ring 48 enter the through holes of the first magnetic ring 48, the two magnetic rings are completely aligned, and the placement of the cross rod is finished.
The invention utilizes the principle that magnets attract oppositely and the principle that the spring can automatically reset in a certain deformation range, so that the left base and the right base can be not accurately placed, and the installation difficulty is reduced; the invention utilizes the function of restoring of the coil spring to enable the longitudinal rotating heads at the two ends to be quickly restored, and when the transverse rod sleeve is conveniently installed, the magnetic ring on the inner sleeve is connected with the magnetic ring on the transverse rod sleeve in a magnetic absorption way; the magnetic-attracting limiting nail is positioned by utilizing magnetism, the magnetic-attracting limiting nail can have the functions of elasticity and automatic reset without a spring, and after the magnetic attraction alignment of the two magnetic rings is accurate, the magnetic-attracting limiting nail can automatically enter the through hole of the first magnetic ring, so that the quick positioning can be realized, and the transverse rod can be kept flat; the anti-collision ring is made of elastic materials with smooth outer parts, so that the magnetic attraction alignment of the two magnetic rings is facilitated, and the damage caused by the direct collision of the two magnetic rings can be prevented; the impact of athletes to all directions of the cross bar can trigger the separation between the magnetic rings when jumping, the safety of the invention is guaranteed; the cross rod sleeve is made of light materials with high tensile strength, is not easy to damage and is not easy to cause collision injury to athletes; the spring devices in the outer sleeve and the inner sleeve still do not influence the reset installation of the cross bar when the jumping of athletes causes the jumping stand device to swing and shift, and the invention has stronger adaptability.
The above examples of the present invention are illustrative of typical embodiments of the present invention and are not intended to limit the embodiments of the present invention. Obvious variations from the embodiments of the present invention are still within the scope of the claims of the present invention.
Claims (9)
1. The jumping stand bar device with the automatic reset function comprises a base 10, a small cylinder end 20, a transverse turning head 30, a longitudinal turning head 40 and a cross bar sleeve 50; the device is characterized in that the upper surface of the base 10 is provided with a direction arrow 11, and the direction arrows 11 on the left base 10 and the right base 10 are in a mirror image relationship; a bottom cylinder 12 is arranged in the middle of the base 10, and a bottom knob 13 is arranged on the bottom cylinder 12; the middle cylinder 14 is inserted into the bottom cylinder 12, and the bottom knob 13 is turned to fix or loosen the clamping of the bottom cylinder 12 on the middle cylinder 14; the side surface of the middle cylinder 14 is provided with a middle cylinder groove 15, the middle cylinder groove 15 is matched with a convex groove arranged in the bottom cylinder 12, and the middle cylinder 14 can only move up and down in the bottom cylinder 12; the upper end of the middle cylinder 14 is provided with a middle cylinder opening thread 16; the middle knob 17 can be screwed into the middle cylinder opening thread 16; the small cylinder 18 is inserted into the middle cylinder 14, and the middle knob 17 can be screwed to fix or loosen the clamping of the middle cylinder opening thread 16 on the small cylinder 18; the side surface of the small cylinder 18 is provided with a small cylinder groove 19, and the small cylinder groove 19 is matched with a convex groove arranged in the middle cylinder 14, so that the small cylinder 18 can only move up and down in the middle cylinder 14; a small cylinder end 20 is arranged at the top end of the small cylinder 18, and a transverse limiting head 21 is arranged on one side of the small cylinder end 20; the transverse limiting head 21 stops when limiting the first coil spring 26 to drive the transverse turning head 30 to rotate to the angle consistent with the direction indicated by the directional arrow 11; a rotating shaft sleeve 24 and an external thread 25 are arranged below the rotating shaft bolt 22, the external thread 25 penetrates through the vertical through hole 37 of the steering head and is screwed into the internal thread in the middle of the small cylinder end 20, and the transverse steering head 30 is limited to transversely rotate only at the top of the small cylinder end 20; a cylinder is arranged on the rotating shaft bolt 22, a first coil spring limiting head 23 is arranged above the cylinder, and a first coil spring 26 is sleeved in the middle of the first coil spring limiting head 23; the transverse steering head 30 is provided with a first coil spring limiting head 31, a longitudinal steering head limiting block 32, a longitudinal steering head joint 33, a support block 34, a first limiting head 35 and a steering head vertical through hole 37; the longitudinal turning head limiting block 32 only allows the longitudinal turning head 40 to drive the outer sleeve 42 to rotate upwards to a horizontal state; when the longitudinal turning limiting block 32 drives the outer sleeve 42 to rotate up and down, the axial lead of the outer sleeve 42 is always superposed with the direction line indicated by the direction arrow 11 below; the supporting block 34 is provided with a damping rubber head 36; a second limiting head 41 and a second coil spring limiting head 42a are arranged on the side surface of the longitudinal rotary head 40; a second coil spring 43a is arranged in the middle of the second coil spring limiting head 42 a; an outer sleeve 42 is sleeved at the outer end of the longitudinal rotary head 40, and an outer magnetic ring 43 is arranged in the middle of the outer sleeve 42; an inner sleeve 44 is arranged in the outer sleeve 42, an inner magnetic ring 45 is arranged at the inner end of the inner sleeve 44, and the outer end of the inner sleeve 44 is fixed on an outer joint 47; a first magnetic ring 48 is arranged in the middle of the outer joint 47, and a first anti-collision ring 49 is arranged outside the first magnetic ring 48; one end of the spring ring 46 is fixed with the longitudinal rotary joint 40, and the other end is fixed with the external joint 47; when the outer magnetic ring 43 and the inner magnetic ring 45 are close to and attracted together, the spring ring 46 has no inward or outward elasticity; when the inner magnetic ring 45 moves past the outer magnetic ring 43 toward the inner sleeve 42, the spring ring 46 is pressed, and the spring ring 46 generates an outward elastic force; when the inner magnetic ring 45 moves beyond the outer magnetic ring 43 to the outside of the outer sleeve 42, the spring ring 46 is pulled, and the spring ring 46 generates inward pulling force; the transverse limiting heads 21, the first coil springs 26, the first coil spring limiting heads 31, the first limiting heads 35, the second limiting heads 41, the second coil spring limiting heads 42a and the second coil springs 43a are arranged on the left base 10 and the right base 10 and are in mirror image relationship with each other; two ends of the cross rod sleeve 50 are respectively provided with a cross rod end 51, a second magnetic ring 53 is arranged in the middle of the outer end of the cross rod end 51, and a second magnetic ring anti-collision ring 52 is arranged outside the second magnetic ring 53; a magnetism-attracting limiting nail 54 is arranged in a through hole in the middle of the second magnetic ring 53, and a nail head 55 is arranged behind the magnetism-attracting limiting nail 54; the diameter of the magnetic limiting nail 54 is smaller than that of the through hole in the middle of the second magnetic ring 53, the magnetic limiting nail 54 is always arranged in the through hole in the middle of the second magnetic ring 53 under the magnetic effect of the second magnetic ring 53, the magnetic limiting nail 54 can slide inwards but cannot be pulled out by applying pressure to the magnetic limiting nail 54, and when the pressure is eliminated, the magnetic limiting nail 54 can automatically reset under the magnetic effect of the second magnetic ring 53.
2. The high jump mast apparatus with automatic reset function as claimed in claim 1, wherein the cross bar sleeve 50, the outer sleeve 42, the inner sleeve 44, and the outer joint 47 are made of light material with high tensile strength; the cross bar ends 51 at the two ends of the cross bar sleeve 50 are made of non-hydrophilic magnetic materials; the first anti-collision ring 49 and the second anti-collision ring 52 are made of elastic materials with smooth outer parts.
3. The high jump mast apparatus with automatic reset function as claimed in claim 1, wherein the magnetism of the outward facing side of the second magnetic ring 53 in the end 51 of the cross bar at both ends of the cross bar sleeve 50 is the same, and the magnetism of the inward facing side is the same.
4. The jumping mast apparatus with automatic reset function as claimed in claim 1, wherein the magnetism of the outward surface of the first magnetic ring 48 is opposite to the magnetism of the outward surface of the second magnetic ring 53.
5. The jumping mast apparatus with automatic reset function as claimed in claim 1, wherein the diameter of the magnetic limiting pin 54 is smaller than the diameter of the through hole in the middle of the second magnetic ring 53, and the diameter of the magnetic limiting pin 54 is also smaller than the diameter of the through hole in the middle of the first magnetic ring 48.
6. The high jump mast apparatus with automatic reset function as claimed in claim 1, wherein the outer end of the second coil spring 43a is pulled out from the first position-limiting head 35, so that the elastic force of the second coil spring 43a no longer supports the longitudinal rotating head 40 to be turned upwards, the longitudinal rotating head 40 will naturally hang downwards, and all the components arranged on the vertical rotating head 40 will not collide with the small cylinder 18 and all the components under the small cylinder 18 under the action of the shock-absorbing rubber head 36.
7. The high jump bar device with automatic reset function according to claim 1, wherein the inner magnetic ring 45 is beyond 30mm moving into and out of the outer sleeve 42 beyond the outer magnetic ring 43, and is limited by the mechanism between the outer sleeve 42 and the inner sleeve 44.
8. The jumping mast apparatus with automatic reset function as claimed in claim 1, wherein when the first magnetic ring 48 and the second magnetic ring 53 approach each other and attract each other, the attraction force between them is larger than that when the inner magnetic ring 45 moves to the outside of the outer sleeve 42 beyond the outer magnetic ring 43 within 20mm, the longitudinal rotary joint 40 and the outer joint 47 pull the spring ring 46, so that the pulling force generated by the spring ring 46 is added to the sum of the downward falling forces of the cross bar sleeve 50 and all the components on the cross bar sleeve 50; when the inner magnetic ring 45 moves within 20mm beyond the outer magnetic ring 43 towards the outer sleeve 42, the longitudinal rotary joint 40 and the outer joint 47 press the spring ring 46, so that the elastic force generated by the spring ring 46 is added to the sum of the downward dropping force of the cross rod sleeve 50 and all parts on the cross rod sleeve 50; and is larger than the sum of the attraction force generated between the outer magnetic ring 43 and the inner magnetic ring 45 when the two are attracted together and the downward dropping force of the crossbar sleeve 50 and all the components on the crossbar sleeve 50.
9. The use method of the high jump mast apparatus with automatic reset function according to claim 1 to claim 8, the method comprising the steps of:
1) a pair of parts are complete, two bases 11 arranged in a mirror image mode are oppositely placed in a high jump place with a flat ground, and direction arrows 11 on the bases 11 are opposite and form a straight line;
2) the distance between the two is adjusted, the distance between the first magnetic rings 48 on the horizontal inner sleeve 44 is slightly equal to the length distance between the outer top ends of the magnetism-attracting limit pins 54 arranged at the two ends of the cross rod sleeve 50, and the positive and negative deviation is controlled within 30 mm;
3) a high jump pad is arranged between the two bases 11;
4) the heights of the two sides are unified;
5) aligning a first magnetic ring 48 on the crossbar sleeve 50 with a first magnetic ring 48 on one of the bases 11 and adsorbing the two magnetic rings to each other;
6) the two magnetic rings are extruded and aligned in parallel, so that the magnetism-attracting limit pins 54 in the first magnetic ring 48 enter the through holes of the first magnetic ring 48, and the two magnetic rings are completely aligned;
7) the other first magnetic ring 48 on the cross bar sleeve 50 is close to the first magnetic ring 48 on the other base 11, and the two are mutually adsorbed together;
8) and (3) carrying out parallel extrusion alignment on the two magnetic rings, so that the magnetism-attracting limit pins 54 in the first magnetic ring 48 enter the through holes of the first magnetic ring 48, and after the two magnetic rings are completely aligned, the cross bar is completely placed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110299300.4A CN112957650B (en) | 2021-03-21 | 2021-03-21 | High jump hack lever device with automatic reset function and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110299300.4A CN112957650B (en) | 2021-03-21 | 2021-03-21 | High jump hack lever device with automatic reset function and use method thereof |
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| Publication Number | Publication Date |
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| CN112957650A true CN112957650A (en) | 2021-06-15 |
| CN112957650B CN112957650B (en) | 2021-09-28 |
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| CN202110299300.4A Expired - Fee Related CN112957650B (en) | 2021-03-21 | 2021-03-21 | High jump hack lever device with automatic reset function and use method thereof |
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|---|---|
| CN112957650B (en) | 2021-09-28 |
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