Physical training apparatus for sports

Abstract

The invention discloses a physical training apparatus for sports, and relates to the technical field of sports equipment, the physical training apparatus comprises a pull-up exercise frame, one side of the pull-up exercise frame is fixedly connected with a hollow box body, and the box body is internally provided with a counterweight mechanism for increasing the weight of an exerciser; a power assisting mechanism used for playing a power assisting role is arranged above the box body, a protection mechanism used for protecting an exerciser is arranged in the pull-up exercise frame, and one end of a seventh electric telescopic rod is controlled to be inserted into a lifting piece, so that the exerciser can be prevented from falling off when doing pull-up; when an exerciser needs to move, a balancing weight in a second weight box needs to be driven to ascend together, the exercise efficiency of the exerciser is improved, the strength of the exerciser is more fully exerted, one end of a seventh electric telescopic rod is controlled to be away from a lifting piece, and the exerciser moves downwards under the gravity action through the action of a first pull rope and a second pull rope, so that an upward traction force is provided for the exerciser.

Description

Technical Field

[0001] The invention relates to the technical field of sports equipment, in particular to a sports physical training device. Background Art

[0002] Sports physical training equipment refers to special equipment used to enhance the physical fitness of athletes and improve their athletic performance, including pull-up training equipment. Pull-up training equipment is a kind of fitness equipment used to enhance upper limb strength and muscle endurance. Long-term pull-up exercises can enhance the strength of the upper limb flexors and shoulder and back muscles including the biceps, latissimus dorsi, teres major and other muscles.

[0003] Existing pull-up training equipment can improve the efficiency of pull-ups by tying weights to the body before doing pull-ups according to people's needs. However, after the exerciser pulls the pull handle of the pull-up to start exercising, the weight of the weight cannot be changed, resulting in the exerciser's strength decreasing and finally being unable to continue to move upwards under the gravity of the tied weight. However, this does not mean that the exerciser has been exhausted, and the exerciser may not fully exert his strength.

[0004] Combining the above problems, we will find that it is difficult to avoid the above problems at the same time when using the existing pull-up training equipment on the market, and even if it can be solved, it needs to be solved with the cooperation of external tools, so it is impossible to achieve the desired effect. Therefore, we propose a sports physical training equipment. Summary of the invention

[0005] The purpose of the present invention is to provide a sports physical training device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a sports physical training apparatus, comprising a pull-up exercise frame, a hollow box body is fixedly connected to one side of the pull-up exercise frame, a counterweight mechanism for lifting the weight of an exerciser is arranged inside the box body, a power-assisting mechanism for providing power is arranged above the box body, and a protective mechanism for protecting the exerciser is arranged inside the pull-up exercise frame;

[0007] The counterweight mechanism includes a counterweight block, a cross plate is arranged inside the pull-up exercise frame, one side of the cross plate is fixedly connected to a guide piece, one side of the guide piece is fixedly connected to a seventh electric telescopic rod, the outer surface of the pull-up exercise frame is fixedly connected to a first guide rod, one end of the first guide rod passes through the guide piece, two groups of fifth electric telescopic rods are fixedly connected to the outer surface of the pull-up exercise frame, one end of the two groups of fifth electric telescopic rods are fixedly connected to the second guide rod, one end of the second guide rod passes through the cross plate, two groups of sliding rods are fixedly connected inside the box body, a slider is slidably connected to the outer surface of the sliding rod, a second counterweight box is fixedly connected between the two groups of sliders, one side of the second counterweight box is fixedly connected to a baffle, one side of the baffle is fixedly connected to a lifting member, and the lifting member is internally movably plugged with one end of the seventh electric telescopic rod.

[0008] Preferably, multiple groups of partitions are fixedly connected to the inner wall of the second counterweight box, multiple groups of counterweight blocks are arranged inside the second counterweight box, two groups of second mounting parts are fixedly connected to one side of the second counterweight box, and multiple groups of second electric telescopic rods are fixedly connected to one side of the two groups of second mounting parts, and a third electric telescopic rod for driving and supporting the second counterweight box is arranged below the second counterweight box, and one end of the third electric telescopic rod is fixedly connected to the inner wall of the box body.

[0009] Preferably, a first counterweight box is provided on one side of the second counterweight box, another group of baffles is fixedly connected to one side of the first counterweight box, multiple groups of partitions are fixedly connected to the inner wall of the first counterweight box, two groups of first mounting parts are fixedly connected to one side of the first counterweight box, multiple groups of first electric telescopic rods are fixedly connected to one side of the two groups of first mounting parts, one end of the sixth electric telescopic rod is fixedly connected to the bottom of the first counterweight box, and the other end of the sixth electric telescopic rod is fixedly connected to the inner wall of the box body.

[0010] Preferably, grooves are symmetrically provided on one side of the second counterweight box, and inner walls of two groups of the grooves are fixedly connected to one end of multiple groups of first springs, and the other ends of multiple groups of first springs are fixedly connected to a first limiting member, and two groups of first chamfers are provided on one side of the first limiting member.

[0011] Preferably, the top of the horizontal plate is fixedly connected to a lower splint, the upper rotating hinge of the lower splint is connected to an upper splint, airbags are provided at the clamping grooves of the upper splint and the lower splint, an airbag inflator is provided on one side of the horizontal plate, the output end of the airbag inflator is fixedly connected to an air pipe, the output end of the air pipe is arranged in two groups, and the output ends of the two groups of air pipes are fixedly connected to the airbag of the upper splint and the airbag of the lower splint, respectively.

[0012] Preferably, one side of the lower clamp plate is fixedly connected to a placing piece, one side of the upper clamp plate is fixedly connected to a rotating piece, the rotating piece is movably inserted into the inside of the placing piece, one side of the rotating piece is penetrated with a slot, one side of the placing piece is fixedly connected to an internally hollow first shell, the interior of the first shell is slidably connected with a movable plate, one side of the movable plate is fixedly connected with a clamping piece, one end of the clamping piece penetrates through the first shell and is movably inserted into the inside of the slot, one side of the clamping piece is provided with a second chamfer, the other side of the movable plate is fixedly connected with a pull rod, one end of the pull rod penetrates through the first shell and is fixedly connected to the pull plate, and the outer surface of the pull rod is movably sleeved with a second spring.

[0013] Preferably, the power assist mechanism includes two groups of second shells with hollow interiors, through holes are provided at the bottoms of the two groups of second shells, one side of the second shell is fixedly connected to a motor, the output end of the motor passes through the second shell and is fixedly connected to a rotating shaft, the outer surface of the rotating shaft is fixedly connected to one end of a first pull rope, the other end of the first pull rope is wrapped around the outer surface of the rotating shaft for several turns, and the other end of one group of the first pull ropes passes through the through hole and is fixedly connected to the top of the guide member, and the other end of the other group of the first pull ropes passes through the box body and is fixedly connected to the top of the second counterweight box, and the inner walls of the two groups of the second shells are fixedly connected to one end of a fourth electric telescopic rod, and the other end of the fourth electric telescopic rod is fixedly connected to a second limiting member.

[0014] Preferably, one end of a second pull rope is fixedly connected to the top of one group of the second shells, two groups of rope tying parts are arranged above the box body, the other end of the second pull rope passes through the two groups of rope tying parts and is fixedly connected to the top of another group of the second shells, four groups of track parts are fixedly connected to the top of the box body, and both sides of the second shell are slidably connected between the two groups of track parts.

[0015] Preferably, the protective mechanism includes a first telescopic groove, which is opened on the outer surface of the second guide rod, and the inner wall of the first telescopic groove is fixedly connected to one end of the first telescopic damping rod, and the other end of the first telescopic damping rod is fixedly connected to a clamping block, and two groups of third chamfers are opened on one side of the clamping block, and the outer surface of the first telescopic damping rod is movably sleeved with a third spring.

[0016] Preferably, two groups of guide holes are formed through the top of the horizontal plate, and the second guide rods are movably inserted into the interiors of the two groups of guide holes, and two groups of second telescopic grooves are formed through the interiors of the two groups of guide holes, and one end of the second telescopic damping rod is fixedly connected to the inner walls of the two groups of second telescopic grooves, and a moving part is fixedly connected to the other end of the second telescopic damping rod, and a fourth spring is movably sleeved on the outer surface of the second telescopic damping rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention utilizes a counterweight mechanism to control one end of the seventh electric telescopic rod to be inserted into the lifting member, so that when the exerciser does pull-ups, the counterweight block inside the second counterweight box needs to be driven to rise together, thereby accelerating the exercise efficiency of the exerciser and enabling the exerciser to exert his strength more fully.

[0019] 2. The present invention utilizes a power-assisting mechanism to control one end of the seventh electric telescopic rod to move away from the lifting member, and through the action of the first pull rope and the second pull rope, the counterweight block inside the second counterweight box moves downward under the action of its own gravity, giving the exerciser an upward traction force, so that the exerciser can more fully exert all his or her muscle strength when he or she is about to be exhausted in the later stage of exercise.

[0020] 3. The present invention utilizes a protective mechanism, through the first telescopic damping rod and the third spring, so that when the exerciser drives the horizontal board to drop rapidly after exhaustion, it plays a great buffering role. After the block enters the second telescopic groove, it drives the moving part to move, and then the second telescopic damping rod and the fourth spring are used to further buffer, thereby reducing the impact force on the exerciser's knee caused by the drop of the horizontal board. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the box body of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the lifting member of the present invention;

[0024] Figure 4 is a schematic structural diagram of the first spring of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the guide member of the present invention;

[0026] Figure 6 is a schematic structural diagram of the second position-limiting member of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the placement piece of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the first shell of the present invention;

[0029] Fig. 9 is a cross-sectional view of the second guide rod of the present invention;

[0030] Fig.10 It is a schematic structural diagram of the second telescopic slot of the present invention.

[0031] In the figure: 1, pull-up exercise rack; 2, counterweight mechanism; 201, slider; 202, slide bar; 203, first counterweight box; 204, first mounting member; 205, first electric telescopic rod; 206, counterweight block; 207, baffle; 208, second electric telescopic rod; 209, second mounting member; 2010, lifting member; 2011, third electric telescopic rod; 2012, second counterweight box; 2013, groove ; 2014, first spring; 2015, first stopper; 2016, first chamfer; 2017, partition; 2018, upper clamp; 2019, rotating member; 2020, placement member; 2021, first shell; 2022, lower clamp; 2023, airbag; 2024, trachea; 2025, airbag inflator; 2026, card slot; 2027, second chamfer; 2028, card member; 2029, Movable plate; 2030, second spring; 2031, pull plate; 2032, pull rod; 2033, seventh electric telescopic rod; 3, power-assisting mechanism; 301, guide member; 302, first pull rope; 303, second shell; 304, track member; 305, second pull rope; 306, rope-binding member; 307, fourth electric telescopic rod; 308, second position-limiting member; 309, motor; 3010, rotating shaft; 4, protection mechanism; 401, third spring; 402, first telescopic damping rod; 403, block; 404, third chamfer; 405, first telescopic slot; 406, fourth spring; 407, second telescopic damping rod; 408, second telescopic slot; 409, guide hole; 4010, movable member; 5, box; 6, first guide rod; 7, horizontal plate; 8, fifth electric telescopic rod; 9, second guide rod; 10, sixth electric telescopic rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1

[0034] See also Figure 1-Figure 10 The present invention provides a technical solution: a sports physical training device, including a pull-up training frame 1, a hollow box 5 is fixedly connected to one side of the pull-up training frame 1, and a counterweight mechanism 2 for lifting the weight of the exerciser is arranged inside the box 5.

[0035] As a further limitation of the weight-bearing mechanism 2 of the present invention, the weight-bearing mechanism 2 includes a weight block 206, a horizontal plate 7 is arranged inside the pull-up exercise frame 1, a guide member 301 is fixedly connected to one side of the horizontal plate 7, a seventh electric telescopic rod 2033 is fixedly connected to one side of the guide member 301, a first guide rod 6 is fixedly connected to the outer surface of the pull-up exercise frame 1, one end of the first guide rod 6 passes through the guide member 301, two groups of fifth electric telescopic rods 8 are fixedly connected to the outer surface of the pull-up exercise frame 1, one end of the two groups of fifth electric telescopic rods 8 are fixedly connected to the second guide rod 9, one end of the second guide rod 9 passes through the horizontal plate 7, two groups of slide rods 202 are fixedly connected to the interior of the box 5, and the outer surface of the slide rod 202 slides A slider 201 is connected, a second counterweight box 2012 is fixedly connected between the two groups of sliders 201, a baffle 207 is fixedly connected to one side of the second counterweight box 2012, a lifting member 2010 is fixedly connected to one side of the baffle 207, one end of the seventh electric telescopic rod 2033 is movably inserted into the lifting member 2010, through the setting of the seventh electric telescopic rod 2033, by controlling the extension of the seventh electric telescopic rod 2033, one end of the seventh electric telescopic rod 2033 is inserted into the interior of the lifting member 2010, and the cross plate 7 can move up and down under the limit of the first guide rod 6 and the second guide rod 9, and at the same time drives the lifting member 2010 to move up and down, thereby driving the second counterweight box 2012 to move up and down.

[0036] The inner wall of the second counterweight box 2012 is fixedly connected with multiple groups of partitions 2017, and multiple groups of counterweight blocks 206 are arranged inside the second counterweight box 2012. Two groups of second mounting parts 209 are fixedly connected to one side of the second counterweight box 2012, and multiple groups of second electric telescopic rods 208 are fixedly connected to one side of the two groups of second mounting parts 209. A third electric telescopic rod 2011 for driving and supporting the second counterweight box 2012 is arranged below the second counterweight box 2012. One end of the third electric telescopic rod 2011 is fixedly connected to the inner wall of the box body 5. Through the setting of the counterweight block 206, the second counterweight box 2012 generates a certain gravity under the action of the counterweight block 206. When the exerciser drives the cross board 7 to rise, he needs to drive the second counterweight box 2012 to rise together to achieve the effect of weight bearing.

[0037] A first counterweight box 203 is provided on one side of the second counterweight box 2012, another set of baffles 207 are fixedly connected to one side of the first counterweight box 203, multiple sets of partitions 2017 are fixedly connected to the inner wall of the first counterweight box 203, two sets of first mounting members 204 are fixedly connected to one side of the first counterweight box 203, multiple sets of first electric telescopic rods 205 are fixedly connected to one side of the two sets of first mounting members 204, one end of the sixth electric telescopic rod 10 is fixedly connected to the bottom of the first counterweight box 203, and the other end of the sixth electric telescopic rod 10 is fixedly connected to the box body 5 The inner wall of the first counterweight box 203 can be adjusted by controlling the second electric telescopic rod 208 to push the counterweight blocks 206 inside the second counterweight box 2012 into the first counterweight box 203, so that the number of counterweight blocks 206 can be changed without the exerciser getting off the pull-up exercise rack 1. The number of counterweight blocks 206 can be gradually reduced as the exerciser exercises, and the counterweight blocks 206 inside the first counterweight box 203 can be pushed into the second counterweight box 2012 by controlling the first electric telescopic rod 205.

[0038] One side of the second counterweight box 2012 is symmetrically provided with grooves 2013, and the inner walls of the two groups of grooves 2013 are fixedly connected to one end of multiple groups of first springs 2014, and the other ends of the multiple groups of first springs 2014 are fixedly connected to the first limiting member 2015, and one side of the first limiting member 2015 is provided with two groups of first chamfers 2016. Through the setting of the first limiting member 2015, during the movement of the counterweight block 206, the first chamfer 2016 opened by the first limiting member 2015 will be squeezed, so that the first limiting member 2015 moves toward the inside of the groove 2013 to compress the first spring 2014. After the counterweight block 206 has completely passed, the first spring 2014 releases its elastic potential energy, which has a limiting effect on the counterweight block 206, preventing the counterweight block 206 inside the first counterweight box 203 and the second counterweight box 2012 from moving at will.

[0039] A lower splint 2022 is fixedly connected to the top of the transverse plate 7, and an upper splint 2018 is connected to the upper rotating hinge of the lower splint 2022. Airbags 2023 are provided at the clamping grooves of the upper splint 2018 and the lower splint 2022. An airbag 2023 inflator 2025 is provided on one side of the transverse plate 7. An output end of the airbag 2023 inflator 2025 is fixedly connected to an air pipe 2024. The output end of the air pipe 2024 is provided in two groups. The output ends of the two groups of air pipes 2024 are respectively fixedly connected to the airbag 2023 of the upper splint 2018 and the airbag 2023 of the lower splint 2022. Through the provision of the airbag 2023, the clamping groove can be close to the legs of different exercisers, reducing the force applied during each leg ascent, and the air content inside the airbag 2023 is controlled by the airbag 2023 inflator 2025.

[0040] One side of the lower clamping plate 2022 is fixedly connected with a placing piece 2020, one side of the upper clamping plate 2018 is fixedly connected with a rotating piece 2019, the rotating piece 2019 is movably plugged into the inside of the placing piece 2020, and a slot 2026 is penetrated through one side of the rotating piece 2019, one side of the placing piece 2020 is fixedly connected with a first shell 2021 with a hollow interior, and a movable plate 2029 is slidably connected to the interior of the first shell 2021, and a clamping piece 2028 is fixedly connected to one side of the movable plate 2029, one end of the clamping piece 2028 penetrates through the first shell 2021 and is movably plugged into the inside of the slot 2026, and a second chamfer 2027 is provided on one side of the clamping piece 2028, and a pull rod 2032 is fixedly connected to the other side of the movable plate 2029, one end of the pull rod 2032 penetrates through the first shell 2021 and is fixedly connected to the pull plate 2031, and the outer surface of the pull rod 2032 is movably sleeved with a second spring 2030, through the clamping piece 2028, when the rotating member 2019 is inserted into the placement member 2020, the rotating member 2019 will squeeze the second chamfer 2027 of the clamping member 2028, drive the clamping member 2028 to move into the first shell 2021, and compress the second spring 2030. When the clamping member 2028 is completely placed in the placement member 2020, the second spring 2030 releases its elastic potential energy, inserts the clamping member 2028 into the slot 2026, and moves the rotating member 2 019 is fixed in the placing piece 2020, and the upper splint 2018 is fixed above the lower splint 2022, so that the legs of the exerciser can drive the horizontal plate 7 to move up and down. When the legs need to leave the horizontal plate 7, they only need to pull the pulling plate 2031 to drive the moving plate 2029 to move, which can drive the clamping piece 2028 to disengage from the clamping slot 2026, release the limit of the clamping piece 2028 on the rotating piece 2019, and then the upper splint 2018 and the lower splint 2022 can be moved away.

[0041] The specific implementation of this embodiment is as follows: by controlling the seventh electric telescopic rod 2033 to extend, one end of the seventh electric telescopic rod 2033 is inserted into the interior of the lifting member 2010, and the cross plate 7 moves upward under the limit of the first guide rod 6 and the second guide rod 9, and at the same time drives the lifting member 2010 to move up and down, thereby driving the second counterweight box 2012 to move up and down. The second counterweight box 2012 generates a certain gravity under the action of the counterweight block 206. When the exerciser drives the cross plate 7 to rise, it is necessary to drive the second counterweight box 2012 to rise together, so as to achieve the effect of weight bearing. The second electric telescopic rod 208 can be controlled to move the interior of the second counterweight box 2012 The counterweight block 206 is pushed into the first counterweight box 203, so that the number of the counterweight blocks 206 can be changed without the exerciser getting off the pull-up exercise rack 1. The number of the counterweight blocks 206 can be gradually reduced as the exerciser exercises. The counterweight blocks 206 in the first counterweight box 203 can also be pushed into the second counterweight box 2012 by controlling the first electric telescopic rod 205. During the movement of the counterweight block 206, the first chamfer 2016 provided by the first limiting member 2015 is squeezed, so that the first limiting member 2015 moves toward the inside of the groove 2013, compressing the first spring 2014, and the counterweight block 206 is completely passed. Afterwards, the first spring 2014 releases its elastic potential energy, which has a limiting effect on the counterweight 206, preventing the counterweight 206 inside the first counterweight box 203 and the second counterweight box 2012 from moving at will. The arrangement of the airbag 2023 allows the clamping groove to fit closely to the legs of different exercisers, reducing the amount of force applied during each rise of the legs. The air content inside the airbag 2023 is controlled by the inflator 2025 of the airbag 2023. When the rotating member 2019 is plugged into the interior of the placement member 2020, the rotating member 2019 will squeeze the second chamfer 2027 provided by the clamping member 2028, driving the clamping member 2028 to move toward the interior of the first shell 221, thereby The second spring 2030 is compressed. When the clamping member 2028 is completely placed in the placing member 2020, the second spring 2030 releases its elastic potential energy, inserts the clamping member 2028 into the clamping slot 2026, fixes the rotating member 2019 in the placing member 2020, and fixes the upper clamping plate 2018 above the lower clamping plate 2022, so that the leg of the exerciser can drive the horizontal plate 7 to move up and down. When the leg needs to leave the horizontal plate 7, it only needs to pull the pulling plate 2031 to drive the moving plate 2029 to move, so as to drive the clamping member 2028 out of the clamping slot 2026, release the limit of the clamping member 2028 on the rotating member 2019, and then the upper clamping plate 2018 and the lower clamping plate 2022 can be moved away.

[0042] Embodiment 2

[0043] See also Figure 1 - Fig.10The present invention provides a technical solution: a sports physical training device. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. A power-assisting mechanism 3 for assisting the power is arranged above the box 5.

[0044] As a further limitation of the power-assisting mechanism 3 of the present invention, the power-assisting mechanism 3 includes two sets of second shells 303 with hollow interiors, through holes are opened at the bottoms of the two sets of second shells 303, a motor 309 is fixedly connected to one side of the second shell 303, the output end of the motor 309 passes through the second shell 303 and is fixedly connected to the rotating shaft 3010, one end of the first pull rope 302 is fixedly connected to the outer surface of the rotating shaft 3010, the other end of the first pull rope 302 is wound around the outer surface of the rotating shaft 3010 for several turns, and the other end of one set of the first pull rope 302 passes through the through hole and is fixedly connected to the top of the guide member 301, and the other set of the first pull rope 302 is fixedly connected to the top of the guide member 301. The other end of 02 passes through the box body 5 and is fixedly connected to the top of the second counterweight box 2012. The inner walls of the two groups of second shells 303 are fixedly connected with one end of the fourth electric telescopic rod 307. The other end of the fourth electric telescopic rod 307 is fixedly connected with the second limit piece 308. Through the setting of the motor 309, the motor 309 is controlled to drive the rotating shaft 3010 to rotate, so as to control the length of the first pull rope 302 released to adapt to exercisers of different heights and arm spans. The fourth electric telescopic rod 307 drives the second limit piece 308 to move, and fixes the first pull rope 302 in the second shell 303 when the length does not need to be adjusted.

[0045] One end of a second pull rope 305 is fixedly connected to the top of a group of second shells 303, and two groups of rope tying parts 306 are arranged on the top of the box body 5. The other end of the second pull rope 305 passes through the two groups of rope tying parts 306 and is fixedly connected to the top of another group of second shells 303. Four groups of track parts 304 are fixedly connected to the top of the box body 5. The two sides of the second shell 303 are slidably connected between the two groups of track parts 304. Through the arrangement of the rope tying parts 306, the second pull rope 305 can slide on the outer surface of the rope tying parts 306 and prevent the second pull rope 305 from leaving the sliding track. The track part 304 is used to specify the up and down movement direction and path of the second shell 303.

[0046] The specific implementation method of this embodiment is: by controlling the seventh electric telescopic rod 2033 to move away from the lifting member 2010, the second counterweight box 2012 and the cross plate 7 are connected by the first pull rope 302 and the second pull rope 305, and the counterweight block 206 inside the first counterweight box 203 can be pushed into the second counterweight box 2012 by gradually controlling the first electric telescopic rod 205. Because the more counterweight blocks 206 inside the second counterweight box 2012, the greater the gravity of the second counterweight box 2012, the second counterweight box 2012 will have a downward gravity, and through the first pull rope 302 and the second pull rope 305, the cross plate 7 will be subjected to an upward traction force. When the exerciser does pull-ups, as the gravity of the second counterweight box 2012 increases, the force that the exerciser needs to release will become smaller and smaller, which can fully exert the exerciser's strength to the extreme and help to improve the exerciser's muscle strength.

[0047] Embodiment 3

[0048] See also Figure 1-Figure 10 The present invention provides a technical solution: a sports physical training device. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. A protection mechanism 4 for protecting the exerciser is arranged inside the pull-up exercise frame 1.

[0049] As a further limitation of the protection mechanism 4 of the present invention, the protection mechanism 4 includes a first telescopic groove 405, the first telescopic groove 405 is opened on the outer surface of the second guide rod 9, the inner wall of the first telescopic groove 405 is fixedly connected to one end of the first telescopic damping rod 402, the other end of the first telescopic damping rod 402 is fixedly connected to a clamping block 403, one side of the clamping block 403 is provided with two groups of third chamfers 404, the outer surface of the first telescopic damping rod 402 is movably sleeved with a third spring 401, the cross plate 7 is located above 403 in a normal state, and through the setting of the clamping block 403, when the cross plate 7 is downward, When moving, it can contact the third chamfer 404 opened by the block 403. The installed first telescopic damping rod 402 has high damping. During the downward movement of the cross plate 7, when it moves slowly, the first telescopic damping rod 402 cannot be compressed only by the cross plate 7 and the gravity of the exerciser himself. However, when the exerciser is exhausted or other conditions occur, causing the cross plate 7 to drop rapidly, coupled with the exerciser's own gravity, a strong impact force will be generated, which will compress the first telescopic damping rod 402. At the same time, the third spring 401 cooperates with the first telescopic damping rod 402 to greatly reduce the intensity of the impact force.

[0050] Two groups of guide holes 409 are provided through the top of the cross plate 7, and the second guide rods 9 are movably inserted inside the two groups of guide holes 409, and two groups of second telescopic grooves 408 are provided inside the two groups of guide holes 409. One end of the second telescopic damping rod 407 is fixedly connected to the inner wall of the two groups of second telescopic grooves 408, and the other end of the second telescopic damping rod 407 is fixedly connected to the moving part 4010, and the outer surface of the second telescopic damping rod 407 is movably sleeved with the fourth spring 406. Through the setting of the second telescopic damping rod 407, after the first telescopic damping rod 402 contracts, the cross plate 7 continues to move downward, and the block 403 will be inserted into the second telescopic groove 408 under the action of the first telescopic damping rod 402 and the third spring 401, and contact with the moving part 4010, driving the moving part 4010 to squeeze the second telescopic damping rod 407 and the fourth spring 406, further reducing the impact force, thereby reducing the damage caused to the exerciser by the rapid descent.

[0051] The specific implementation of this embodiment is as follows: when the horizontal plate 7 moves downward, it can contact the third chamfer 404 opened by the block 403, and the installed first telescopic damping rod 402 has high-strength damping. In the process of the horizontal plate 7 moving downward, when it moves slowly, the first telescopic damping rod 402 cannot be compressed by the horizontal plate 7 and the gravity of the exerciser alone. However, when the exerciser is exhausted or in other conditions, causing the horizontal plate 7 to fall rapidly, coupled with the exerciser's own gravity, a strong impact force will be generated, which will compress the first telescopic damping rod 402 is compressed, and the third spring 401 cooperates with the first telescopic damping rod 402 to greatly reduce the intensity of the impact force. After the first telescopic damping rod 402 is contracted, the cross plate 7 continues to move downward, and the block 403 will be inserted into the second telescopic groove 408 under the action of the first telescopic damping rod 402 and the third spring 401, and contact with the moving part 4010, so as to drive the moving part 4010 to squeeze the second telescopic damping rod 407 and the fourth spring 406, thereby further reducing the impact force, thereby reducing the damage caused to the exerciser by the rapid descent.

[0052] The control switches for controlling the first electric telescopic rod 205, the second electric telescopic rod 208 and other electronic devices are all arranged on one side of the pull-up exercise frame 1. When the exerciser performs the pull-up exercise with the weight changed, he must be accompanied by an assistant instructor to control the switches. Because the pull-up exercise frame 1 has many functions, it is not convenient for the exerciser who is performing the pull-up exercise to operate.

[0053] Working principle: when in use, first control the fifth electric telescopic rod 8 and the third electric telescopic rod 2011 to provide a certain supporting force for the cross board 7 and the weight box, then the exerciser kneels on the cross board 7, and adjusts the length of the first pull rope 302 by controlling the motor 309, and at the same time controls the fifth electric telescopic rod 8 and the third electric telescopic rod 2011 to cooperate, and adjust the cross board 7 to when the exerciser kneels on the cross board 7, and holds the handle of the pull-up exercise frame 1 with his arm, so that the exerciser's arm can be fully extended, and then controls the motor 309 to rotate, continues to release the length of the first pull rope 302, and then controls the seventh electric telescopic rod 2033 to extend, and inserts one end of the seventh electric telescopic rod 2033 into the interior of the lifting member 210, and the cross board 7 is between the first guide rod 6 and The second guide rod 9 moves upward and downward under the limit position, and at the same time drives the lifting member 2010 to move up and down, thereby driving the second counterweight box 2012 to move up and down. The second counterweight box 2012 generates a certain gravity under the action of the counterweight block 206. When the exerciser drives the cross plate 7 to rise, it is necessary to drive the second counterweight box 2012 to rise together to achieve the effect of weight bearing. The counterweight block 206 inside the second counterweight box 2012 can be pushed into the first counterweight box 203 by controlling the second electric telescopic rod 208, so that the number of counterweight blocks 206 can be changed without the exerciser getting off the pull-up exercise frame 1. The number of counterweight blocks 206 can be gradually reduced as the exerciser exercises, and the first electric telescopic rod 208 can be controlled to increase the number of counterweight blocks 206. The rod 205 pushes the counterweight 206 in the first counterweight box 203 into the second counterweight box 2012. During the movement of the counterweight 206, the first chamfer 2016 provided by the first stopper 2015 is squeezed, so that the first stopper 2015 moves toward the inside of the groove 2013, compressing the first spring 2014. After the counterweight 206 passes completely, the first spring 2014 releases its elastic potential energy, which limits the counterweight 206 and prevents the counterweight 206 in the first counterweight box 203 and the second counterweight box 2012 from moving at will. By setting the airbag 223, the clamping groove can be closely attached to the legs of different exercisers, reducing the force applied during each rise of the legs. 25 controls the air content inside the airbag 2023. When the rotating member 2019 is inserted into the placement member 2020, the rotating member 2019 will squeeze the second chamfer 2027 opened by the clamping member 2028, drive the clamping member 2028 to move toward the inside of the first shell 2021, and compress the second spring 2030. When the clamping member 2028 is completely placed in the placement member 2020, the second spring 2030 releases its elastic potential energy, inserts the clamping member 2028 into the clamping groove 2026, fixes the rotating member 2019 in the placement member 2020, and fixes the upper clamping plate 2018 above the lower clamping plate 2022, so that the legs of the exerciser can drive the horizontal plate 7 to move up and down. When the legs need to leave the horizontal plate 7, they only need to pull the pulling plate 2031 to drive the moving plate 2029 to move.The clamping member 2028 can be driven to disengage from the clamping slot 2026, and the limit of the clamping member 2028 on the rotating member 2019 can be released, so that the upper clamping plate 2018 and the lower clamping plate 2022 can be moved away from each other. As the strength of the exerciser gradually decreases, the seventh electric telescopic rod 2033 can be controlled to move away from the lifting member 2010, and the second counterweight box 2012 and the horizontal plate 7 can be connected by the first pull rope 302 and the second pull rope 305. The counterweight block 206 in the first counterweight box 203 can be pushed to the upper side of the first counterweight box 203 by gradually controlling the first electric telescopic rod 205. Inside the second counterweight box 2012, because the more counterweight blocks 206 there are inside the second counterweight box 2012, the greater the gravity of the second counterweight box 2012, the second counterweight box 2012 will have a downward gravity, and through the first pull rope 302 and the second pull rope 305, the horizontal board 7 will be subjected to an upward traction force. When the exerciser does pull-ups, as the gravity of the second counterweight box 2012 increases, the force that the exerciser needs to release will become smaller and smaller, which can fully exert the strength of the exerciser to the extreme, which is helpful for the exerciser's muscles Strength is improved. During the exercise of the exerciser, when the horizontal board 7 moves downward, it can contact the third chamfer 404 opened by the block 403. The installed first telescopic damping rod 402 has high-strength damping. During the downward movement of the horizontal board 7, when it moves slowly, the first telescopic damping rod 402 cannot be compressed by the horizontal board 7 and the gravity of the exerciser alone. However, when the exerciser is exhausted or in other conditions, causing the horizontal board 7 to fall rapidly, coupled with the exerciser's own gravity, a strong impact force will be generated, which will compress the first telescopic damping rod 402 is compressed, and the third spring 401 cooperates with the first telescopic damping rod 402 to greatly reduce the intensity of the impact force. After the first telescopic damping rod 402 is contracted, the cross plate 7 continues to move downward, and the block 403 will be inserted into the second telescopic slot 408 under the action of the first telescopic damping rod 402 and the third spring 401, and contact with the moving part 4010, driving the moving part 4010 to squeeze the second telescopic damping rod 407 and the fourth spring 406, further reducing the impact force, thereby reducing the damage caused to the exerciser by the rapid descent.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A physical fitness training apparatus, comprising a pull-up training frame (1), wherein a hollow box (5) is fixedly connected to one side of the pull-up training frame (1), characterized in that: A counterweight mechanism (2) for lifting the weight of an exerciser is arranged inside the box (5), a boost mechanism (3) for providing a boost is arranged above the box (5), and a protection mechanism (4) for protecting the exerciser is arranged inside the pull-up exercise frame (1); The counterweight mechanism (2) comprises a counterweight block (206); a transverse plate (7) is arranged inside the pull-up exercise frame (1); a guide member (301) is fixedly connected to one side of the transverse plate (7); a seventh electric telescopic rod (2033) is fixedly connected to one side of the guide member (301); a first guide rod (6) is fixedly connected to the outer surface of the pull-up exercise frame (1); one end of the first guide rod (6) passes through the guide member (301); two groups of fifth electric telescopic rods (8) are fixedly connected to the outer surface of the pull-up exercise frame (1); one end of the two groups of fifth electric telescopic rods (8) are fixedly connected to the outer surface of the pull-up exercise frame (1); A second guide rod (9) is fixedly connected thereto, one end of the second guide rod (9) passes through the cross plate (7), two groups of sliding rods (202) are fixedly connected inside the box body (5), the outer surface of the sliding rod (202) is slidably connected to a slider (201), a second counterweight box (2012) is fixedly connected between the two groups of sliders (201), one side of the second counterweight box (2012) is fixedly connected to a baffle (207), one side of the baffle (207) is fixedly connected to a lifting member (2010), and the interior of the lifting member (2010) is movably plugged with one end of the seventh electric telescopic rod (2033).

2. A sports physical training device according to claim 1, characterized in that: The inner wall of the second counterweight box (2012) is fixedly connected to a plurality of partitions (2017); a plurality of counterweight blocks (206) are arranged inside the second counterweight box (2012); two sets of second mounting members (209) are fixedly connected to one side of the second counterweight box (2012); one side of the two sets of second mounting members (209) is fixedly connected to a plurality of second electric telescopic rods (208); a third electric telescopic rod (2011) for driving and supporting the second counterweight box (2012) is arranged below the second counterweight box (2012); one end of the third electric telescopic rod (2011) is fixedly connected to the inner wall of the box body (5).

3. A sports physical training device according to claim 2, characterized in that: A first counterweight box (203) is provided on one side of the second counterweight box (2012); another group of baffles (207) is fixedly connected to one side of the first counterweight box (203); a plurality of groups of partitions (2017) are fixedly connected to the inner wall of the first counterweight box (203); two groups of first mounting members (204) are fixedly connected to one side of the first counterweight box (203); a plurality of first electric telescopic rods (205) are fixedly connected to one side of the two groups of first mounting members (204); one end of a sixth electric telescopic rod (10) is fixedly connected to the bottom of the first counterweight box (203); and the other end of the sixth electric telescopic rod (10) is fixedly connected to the inner wall of the box body (5).

4. A sports physical training device according to claim 3, characterized in that: One side of the second counterweight box (2012) is symmetrically provided with grooves (2013), the inner walls of two groups of the grooves (2013) are fixedly connected to one end of multiple groups of first springs (2014), the other ends of the multiple groups of first springs (2014) are fixedly connected to a first limiting member (2015), and one side of the first limiting member (2015) is provided with two groups of first chamfers (2016).

5. A sports physical training device according to claim 1, characterized in that: The top of the transverse plate (7) is fixedly connected to a lower clamping plate (2022), and the upper rotating hinge of the lower clamping plate (2022) is connected to an upper clamping plate (2018), and air bags (2023) are arranged at the clamping grooves of the upper clamping plate (2018) and the lower clamping plate (2022). An air bag inflator (2025) is arranged on one side of the transverse plate (7), and the output end of the air bag inflator (2025) is fixedly connected to an air pipe (2024), and the output end of the air pipe (2024) is arranged in two groups, and the output ends of the two groups of air pipes (2024) are respectively fixedly connected to the air bag (2023) of the upper clamping plate (2018) and the air bag (2023) of the lower clamping plate (2022).

6. A sports physical training device according to claim 5, characterized in that: One side of the lower clamping plate (2022) is fixedly connected to a placement piece (2020), one side of the upper clamping plate (2018) is fixedly connected to a rotating piece (2019), the rotating piece (2019) is movably plugged into the interior of the placement piece (2020), one side of the rotating piece (2019) is penetrated by a slot (2026), one side of the placement piece (2020) is fixedly connected to a first shell (2021) with a hollow interior, the interior of the first shell (2021) is slidably connected to a moving plate (2029), the moving plate (202 9), one side of which is fixedly connected with a clamp (2028), one end of which passes through the first shell (2021) and is movably inserted into the inside of the clamping slot (2026), one side of which is provided with a second chamfer (2027), and the other side of the movable plate (2029) is fixedly connected with a pull rod (2032), one end of which passes through the first shell (2021) and is fixedly connected with a pull plate (2031), and the outer surface of the pull rod (2032) is movably sleeved with a second spring (2030).

7. A sports physical training device according to claim 1, characterized in that: The power assist mechanism (3) comprises two groups of second shells (303) with hollow interiors, through holes being provided at the bottoms of the two groups of second shells (303), a motor (309) being fixedly connected to one side of the second shell (303), an output end of the motor (309) passing through the second shell (303) and being fixedly connected to a rotating shaft (3010), one end of a first pull rope (302) being fixedly connected to the outer surface of the rotating shaft (3010), the other end of the first pull rope (302) being wound around the rotating shaft (3010), and the motor (309) being fixedly connected to the rotating shaft (3010). 0), and the other end of one group of the first pull ropes (302) passes through the through hole and is fixedly connected to the top of the guide member (301), and the other end of the other group of the first pull ropes (302) passes through the box body (5) and is fixedly connected to the top of the second counterweight box (2012), and the inner walls of the two groups of the second shells (303) are fixedly connected to one end of the fourth electric telescopic rod (307), and the other end of the fourth electric telescopic rod (307) is fixedly connected to the second limit member (308).

8. A sports physical training device according to claim 7, characterized in that: One end of a second pull rope (305) is fixedly connected to the top of one group of the second shells (303), two groups of rope tying members (306) are arranged above the box body (5), the other end of the second pull rope (305) passes through the two groups of rope tying members (306) and is fixedly connected to the top of another group of the second shells (303), four groups of track members (304) are fixedly connected to the top of the box body (5), and both sides of the second shell (303) are slidably connected between the two groups of track members (304).

9. A sports physical training device according to claim 1, characterized in that: The protection mechanism (4) comprises a first telescopic groove (405), wherein the first telescopic groove (405) is provided on the outer surface of the second guide rod (9), one end of a first telescopic damping rod (402) is fixedly connected to the inner wall of the first telescopic groove (405), the other end of the first telescopic damping rod (402) is fixedly connected to a clamping block (403), one side of the clamping block (403) is provided with two groups of third chamfers (404), and the outer surface of the first telescopic damping rod (402) is movably sleeved with a third spring (401).

10. A sports physical training device according to claim 1, characterized in that: Two groups of guide holes (409) are provided through the top of the transverse plate (7), and the second guide rods (9) are movably inserted into the interiors of the two groups of guide holes (409). Two groups of second telescopic grooves (408) are provided through the interiors of the two groups of guide holes (409), and one end of a second telescopic damping rod (407) is fixedly connected to the inner walls of the two groups of the second telescopic grooves (408), and the other end of the second telescopic damping rod (407) is fixedly connected to a moving part (4010), and the outer surface of the second telescopic damping rod (407) is movably sleeved with a fourth spring (406).

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