Magnetic resistance power generation hand-cranking body builder

Abstract

The utility model relates to the technical field of hand-cranking power generation body builders, and discloses a magnetic resistance power generation hand-cranking body builder which comprises a shell, a body building mechanism is arranged in the shell, and the body building mechanism comprises a power generation part. According to the magnetic resistance power generation hand-cranking body builder, by arranging a first rotating shaft, a bevel gear, a second rotating shaft, a generator, a fan-shaped belt wheel, a mounting rod, a belt wheel, a third rotating shaft, a second connecting rod, a cross-shaped sliding block, a screw rod, a sleeve and a mounting disc, a rotating disc is rotated, the first rotating shaft rotates, a belt drives a center shaft of the generator to rotate, and the cross-shaped sliding block is driven to move front and back by rotating the screw rod; a second connecting rod drives a mounting rod to move, the relative position of a fan-shaped belt wheel and a mounting disc is changed, the transmission ratio of an arc-shaped belt wheel and a belt wheel is changed, the force feedback magnitude on a rotating disc is adjusted, and the practicability of the device is improved; and by arranging the spring, the sliding rod and the sliding block, the belt is in a tight state when the device feeds back the force on the adjusting turntable by utilizing the elastic force of the spring.

Description

Technical Field

[0001] The utility model relates to the technical field of hand-cranked power generation fitness equipment, in particular to a magnetic resistance power generation hand-cranked fitness equipment. Background Art

[0002] Hand-cranked fitness machines can be used to strengthen the chest, arms and hands by rotating the handles with both hands. Some fitness machines are connected to power generation devices to generate electricity while exercising.

[0003] A Chinese patent application, published as CN211158413U, discloses a hand-cranked turntable fitness device capable of generating electricity. The device comprises a turntable, a turntable shaft, a base, a column unit, a transmission mechanism, and a generator. One end of the turntable shaft is connected to the center of the turntable, while the other end is connected to the transmission mechanism, which in turn is connected to the generator. The base is connected to the column unit, and the turntable is rotatably connected to the column unit. The generator is fixed to the base, and the generator is connected to a battery, which is connected to an output port. This utility model utilizes the hand-cranked turntable fitness device to generate electricity and supply it to devices requiring charging.

[0004] However, the device still has the following disadvantages: the device controls the rotation of the turntable to drive the generator shaft to generate electricity, but the device cannot adjust the resistance of the turntable to suit different physical conditions, making it inconvenient for people with different physical conditions to use. To address this problem, we proposed a magnetic resistance power generation hand-crank fitness machine. Utility Model Content

[0005] The purpose of the present invention is to provide a magnetic resistance power generation hand crank fitness machine to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a magnetic resistance power generation hand crank fitness device, comprising a housing, a fitness mechanism disposed inside the housing, and the fitness mechanism comprising a power generation unit;

[0007] The power generation unit includes a first rotating shaft, a second rotating shaft, a generator, a slider, a pulley, a third rotating shaft, and a sliding rod. The outer surface of the front end of the second rotating shaft rotates through the back of the shell and extends to the front of the shell through the first bearing. The top surface of the first rotating shaft is fixedly connected to a turntable. The outer surface of the generator is fixedly connected to the inner wall of the shell. The inner wall of the shell is provided with a sliding groove. The outer surface of the sliding rod is fixedly connected to the inner wall of the sliding groove. The slider is slidably sleeved on the outer surface of the sliding rod. The back of the third rotating shaft is rotatably connected to the front of the slider through a bearing seat. The two pulleys are fixedly sleeved on the outer surface of the central shaft of the generator and the outer surface of the third rotating shaft respectively.

[0008] An adjusting portion is provided inside the housing;

[0009] The adjusting part includes a cross slider and a screw. A through groove is provided on the outer surface of the second rotating shaft. The outer surface of the front end of the screw rotates through the back of the second rotating shaft through the second bearing and extends to the inside of the second rotating shaft. The cross slider is threadedly sleeved on the outer surface of the screw.

[0010] A further improvement is that the power generation part also includes a bevel gear, a fan-shaped pulley, a mounting plate, a mounting rod and a spring. The outer surface of the first rotating shaft is provided with a bracket through a third bearing rotation sleeve, the outer surface of the bracket is fixedly connected to the front of the shell, and the two bevel gears are fixedly sleeved on the outer surface of the first rotating shaft and the outer surface of the second rotating shaft respectively. By setting the first rotating shaft and the bevel gear, it is convenient to change the direction of the turntable, making the turntable more suitable for the human arm.

[0011] A further improvement is that the mounting plate is fixedly sleeved on the outer surface of the second rotating shaft, the outer surface of the mounting rod is fixedly connected to the outer surface of the fan-shaped pulley, the outer surface of the mounting rod slides and extends to the inside of the mounting plate, the two outer surfaces of the pulley and the outer surface of the fan-shaped pulley are connected by belt transmission, and by arranging the pulley, the mounting plate, the fan-shaped pulley and the mounting rod, when the turntable rotates, the central shaft of the generator is driven to rotate to generate electricity.

[0012] A further improvement is that one end of the spring is fixedly connected to the inner wall of the slider, and the other end of the spring is fixedly connected to the inner wall of the shell. By arranging the spring, slider and slide rod, the elastic force of the spring is utilized to keep the belt in a taut state.

[0013] A further improvement is that the adjustment part also includes a glass plate, a marking block, a first connecting rod, a slide rail, a second connecting rod, a ruler, a sleeve and a ring. The sleeve is fixedly mounted on the outer surface of the cross slider, the front end of the second connecting rod extends to the inside of the mounting plate and is hinged to the outer surface of the mounting rod, and the rear end of the second connecting rod is hinged to the outer surface of the sleeve. By arranging a screw rod, a cross slider, a sleeve and a second connecting rod, the fan-shaped pulley can be driven to rotate by turning the screw rod, thereby changing the transmission ratio of the device and reflecting different force feedback on the turntable.

[0014] A further improvement is that the ring is rotatably sleeved on the outer surface of the sleeve through a fourth bearing, the top of the first connecting rod is hinged to the bottom end of the ring, the bottom end of the first connecting rod is hinged to the top of the marking block, the slide rail is slidably sleeved on the outer surface of the marking block, the outer surface of the slide rail is fixedly connected to the inner wall of the shell, and a through hole is opened on the back of the shell. By arranging the first connecting rod, the ring, the slide rail and the marking block, the marking block moves up and down when force feedback is applied to the adjustment dial.

[0015] A further improvement is that the outer surface of the glass plate is fixedly connected to the inner wall of the shell, and the outer surface of the ruler is fixedly connected to the back of the shell. By setting the ruler, the force feedback size of the outer ring of the turntable is conveniently indicated.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the magnetic resistance power generation hand-cranked fitness device is provided with a first rotating shaft, a bevel gear, a second rotating shaft, a generator, a sector pulley, a mounting rod, a pulley, a third rotating shaft, a second connecting rod, a cross slider, a screw, a sleeve and a mounting plate. The turntable is rotated to rotate the first rotating shaft, so that the belt drives the central axis of the generator to rotate. By rotating the screw, the cross slider is driven to move back and forth, so that the second connecting rod drives the mounting rod to move, thereby changing the relative position of the sector pulley and the mounting plate, changing the transmission ratio between the arc pulley and the pulley, adjusting the force feedback size on the turntable, and improving the practicality of the device; by providing a spring, a slide rod and a slider, the elastic force of the spring is utilized to ensure that the belt is in a taut state when the device adjusts the force feedback size on the turntable; by providing a circular ring, a glass plate, a marking block, a first connecting rod, a slide rail and a ruler, when the screw is rotated to adjust the force feedback size on the turntable, the first connecting rod pulls the marking block up and down, and the value on the ruler is referred to to obtain the size of the force feedback on the turntable edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the rear side of the three-dimensional structure of the fitness device of the present invention;

[0018] Figure 2 This is a rear cross-sectional view of the three-dimensional structure of the fitness device of the present invention;

[0019] Figure 3 This is a right side sectional view of the three-dimensional structure of the fitness device of the present invention;

[0020] Figure 4 for Figure 3 A magnified view of the structure at center A;

[0021] Figure 5 for Figure 2 A magnified view of the structure at point B in the middle;

[0022] Figure 6 It is a partial cross-sectional view of the three-dimensional structure of the utility model.

[0023] In the figure: 1 housing, 2 fitness mechanism, 21 power generation unit, 22 adjustment unit, 211 first rotating shaft, 212 bevel gear, 213 second rotating shaft, 214 generator, 215 fan-shaped pulley, 216 mounting rod, 217 slider, 218 pulley, 219 spring, 210 slide bar, 202 third rotating shaft, 221 glass plate, 222 marking block, 223 first connecting rod, 224 slide rail, 225 second connecting rod, 226 scale, 227 cross slider, 228 screw, 229 sleeve, 201 ring, 203 mounting plate. DETAILED DESCRIPTION

[0024] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1-6 The utility model provides a technical solution: a magnetic resistance power generation hand-cranked fitness device, comprising a housing 1, a fitness mechanism 2 is arranged inside the housing 1, and the fitness mechanism 2 includes a power generation part 21;

[0026] The power generation part 21 includes a first rotating shaft 211, a second rotating shaft 213, a generator 214, a slider 217, a pulley 218, a third rotating shaft 202, and a slide rod 210. The outer surface of the front end of the second rotating shaft 213 rotates through the back of the shell 1 and extends to the front of the shell 1 through the first bearing. The top surface of the first rotating shaft 211 is fixedly connected with a turntable. The outer surface of the generator 214 is fixedly connected to the inner wall of the shell 1. The inner wall of the shell 1 is provided with a slide groove. The outer surface of the slide rod 210 is fixedly connected to the inner wall of the slide groove. The slider 217 is slidably mounted on the outer surface of the slide rod 210. The back of the third rotating shaft 202 is rotatably connected to the front of the slider 217 through a bearing seat. Two pulleys 218 are fixedly mounted on the outer surface of the central axis of the generator 214 and the outer surface of the third rotating shaft 202 respectively. The power generation part 21 also includes a bevel gear 212, a fan-shaped pulley 215, a mounting plate 203, a mounting rod 216 and a spring 219.

[0027] The mounting plate 203 is fixedly sleeved on the outer surface of the second rotating shaft 213, the outer surface of the mounting rod 216 is fixedly connected to the outer surface of the sector pulley 215, the outer surface of the mounting rod 216 slides and extends into the interior of the mounting plate 203, the outer surfaces of the two pulleys 218 are connected to the outer surfaces of the sector pulley 215 through a belt transmission, the outer surface of the first rotating shaft 211 is rotatably sleeved with a bracket through a third bearing, the outer surface of the bracket is fixedly connected to the front surface of the housing 1, and the two bevel gears 212 are fixedly sleeved on the outer surfaces of the first rotating shaft 211 and the second rotating shaft 213 respectively;

[0028] One end of the spring 219 is fixedly connected to the inner wall of the slider 217, and the other end of the spring 219 is fixedly connected to the inner wall of the housing 1. By arranging the spring 219, the slide bar 210 and the slider 217, the elastic force of the spring 219 is utilized to ensure that the belt is in a taut state when the device adjusts the force feedback size on the turntable.

[0029] An adjusting portion 22 is provided inside the housing 1;

[0030] The adjustment portion 22 includes a cross slider 227 and a screw 228. A through groove is formed on the outer surface of the second rotating shaft 213. The outer surface of the front end of the screw 228 rotates through the back of the second rotating shaft 213 through the second bearing and extends into the interior of the second rotating shaft 213. The cross slider 227 is threadedly sleeved on the outer surface of the screw 228. The adjustment portion 22 also includes a glass plate 221, a marking block 222, a first connecting rod 223, a slide rail 224, a second connecting rod 225, a scale 226, a sleeve 229, and a ring 201.

[0031] The sleeve 229 is fixedly sleeved on the outer surface of the cross slider 227, the front end of the second connecting rod 225 extends to the inside of the mounting plate 203 and is hinged to the outer surface of the mounting rod 216, and the rear end of the second connecting rod 225 is hinged to the outer surface of the sleeve 229. By setting the first rotating shaft 211, the bevel gear 212, the second rotating shaft 213, the generator 214, the fan-shaped pulley 215, the mounting rod 216, the pulley 218, the third rotating shaft 202, the second connecting rod 225, the cross slider 227, The screw 228, sleeve 229 and mounting plate 203 rotate the turntable to rotate the first rotating shaft 211, which causes the belt to drive the central axis of the generator 214 to rotate. By rotating the screw 228, the cross slider 227 is driven to move back and forth, causing the second connecting rod 225 to drive the mounting rod 216 to move, changing the relative position of the sector pulley 215 and the mounting plate 203, changing the transmission ratio of the arc pulley 215 and the pulley 218, adjusting the force feedback on the turntable, and improving the practicality of the device;

[0032] The ring 201 is rotatably sleeved on the outer surface of the sleeve 229 via a fourth bearing. The top end of the first connecting rod 223 is hinged to the bottom end of the ring 201, and the bottom end of the first connecting rod 223 is hinged to the top end of the alignment block 222. The slide rail 224 is slidably sleeved on the outer surface of the alignment block 222. The outer surface of the slide rail 224 is fixedly connected to the inner wall of the housing 1. A through hole is opened on the back of the housing 1.

[0033] The outer surface of the glass plate 221 is fixedly connected to the inner wall of the shell 1, and the outer surface of the scale 226 is fixedly connected to the back of the shell 1. By setting the ring 201, the glass plate 221, the marking block 222, the first connecting rod 223, the slide rail 224 and the scale 226, when the screw 228 is rotated to adjust the force feedback size on the turntable, the first connecting rod 223 pulls the marking block 222 up and down, and refers to the value on the scale 226 to obtain the size of the force feedback on the turntable edge.

[0034] During use, the screw 228 is rotated, and the screw drives the cross slider 227 to move forward. The cross slider 227 pushes the mounting rod 216 to move through the second connecting rod 225, so that the multiple fan-shaped pulleys 215 are away from the mounting disk 203, the sleeve 229 and the ring 201 move forward, and the ring 201 pulls the marking block 222 upward through the first connecting rod 223. The value indicated by the marking block 222 on the scale 226 becomes larger. When the turntable speed remains unchanged, the speed of the central axis of the generator 214 increases, and the force feedback of the turntable edge becomes larger to adapt to people with different physiques.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood 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 the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic resistance power generation hand-cranked fitness machine, comprising a housing (1), characterized in that: A fitness mechanism (2) is provided inside the housing (1), and the fitness mechanism (2) includes a power generation unit (21); The power generation part (21) includes a first rotating shaft (211), a second rotating shaft (213), a generator (214), a slider (217), a pulley (218), a third rotating shaft (202), and a slide rod (210). The front outer surface of the second rotating shaft (213) rotates through the back of the shell (1) and extends to the front of the shell (1) through a first bearing. The top surface of the first rotating shaft (211) is fixedly connected with a turntable. The outer surface of the generator (214) is fixedly connected to the inner wall of the shell (1). The inner wall of the shell (1) is provided with a slide groove. The outer surface of the slide rod (210) is fixedly connected to the inner wall of the slide groove. The slider (217) is slidably sleeved on the outer surface of the slide rod (210). The back of the third rotating shaft (202) is rotatably connected to the front of the slider (217) through a bearing seat. The two pulleys (218) are fixedly sleeved on the outer surface of the central axis of the generator (214) and the outer surface of the third rotating shaft (202). An adjusting portion (22) is provided inside the housing (1); The adjusting portion (22) includes a cross slider (227) and a screw (228). A through groove is provided on the outer surface of the second rotating shaft (213). The outer surface of the front end of the screw (228) rotates through the back of the second rotating shaft (213) through the second bearing and extends into the interior of the second rotating shaft (213). The cross slider (227) is threadedly sleeved on the outer surface of the screw (228).

2. The magnetic resistance power generation hand crank fitness device according to claim 1, characterized in that: The power generation part (21) further includes a bevel gear (212), a sector pulley (215), a mounting plate (203), a mounting rod (216) and a spring (219); a bracket is provided on the outer surface of the first rotating shaft (211) via a third bearing rotation sleeve; the outer surface of the bracket is fixedly connected to the front surface of the housing (1); and the two bevel gears (212) are fixedly sleeved on the outer surface of the first rotating shaft (211) and the outer surface of the second rotating shaft (213), respectively.

3. The magnetic resistance power generation hand crank fitness device according to claim 2, characterized in that: The mounting plate (203) is fixedly sleeved on the outer surface of the second rotating shaft (213), the outer surface of the mounting rod (216) is fixedly connected to the outer surface of the fan-shaped pulley (215), the outer surface of the mounting rod (216) slides and extends into the interior of the mounting plate (203), and the outer surfaces of the two pulleys (218) and the outer surface of the fan-shaped pulley (215) are connected via a belt transmission.

4. The magnetic resistance power generation hand crank fitness device according to claim 2, characterized in that: One end of the spring (219) is fixedly connected to the inner wall of the slider (217), and the other end of the spring (219) is fixedly connected to the inner wall of the housing (1).

5. The magnetoresistive power generation hand crank fitness machine according to claim 1, characterized in that: The adjusting portion (22) further comprises a glass plate (221), a marking block (222), a first connecting rod (223), a slide rail (224), a second connecting rod (225), a scale (226), a sleeve (229) and a ring (201), wherein the sleeve (229) is fixedly sleeved on the outer surface of the cross slide (227), the front end of the second connecting rod (225) extends to the interior of the mounting plate (203) and is hinged to the outer surface of the mounting rod (216), and the rear end of the second connecting rod (225) is hinged to the outer surface of the sleeve (229).

6. The magnetic resistance power generation hand crank fitness machine according to claim 5, characterized in that: The ring (201) is rotatably sleeved on the outer surface of the sleeve (229) via a fourth bearing, the top end of the first connecting rod (223) is hinged to the bottom end of the ring (201), the bottom end of the first connecting rod (223) is hinged to the top end of the alignment block (222), the slide rail (224) is slidably sleeved on the outer surface of the alignment block (222), the outer surface of the slide rail (224) is fixedly connected to the inner wall of the shell (1), and a through hole is opened on the back of the shell (1).

7. The magnetic resistance power generation hand crank fitness machine according to claim 5, characterized in that: The outer surface of the glass plate (221) is fixedly connected to the inner wall of the housing (1), and the outer surface of the scale (226) is fixedly connected to the back surface of the housing (1).

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