CN114768187A

CN114768187A - Multifunctional fitness equipment

Info

Publication number: CN114768187A
Application number: CN202210286104.8A
Authority: CN
Inventors: 闫琪
Original assignee: Qingdao Fengtuolixing Technology Service Co ltd
Current assignee: Xuzhou Qifeng Intelligent Technology Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-07-22
Anticipated expiration: 2042-03-22
Also published as: CN114768187B

Abstract

The invention discloses multifunctional fitness equipment, and belongs to the technical field of fitness equipment. The technical scheme is as follows: a multifunctional body-building device comprises a base, two turntables which are correspondingly and rotatably connected to two ends of one side face of the base, and two race course units which are arranged on the base and respectively correspond to the two turntables one by one, wherein the turntables control the corresponding race course units. The beneficial effects of the invention are: the multifunctional body-building equipment provided by the invention has the advantages of ingenious structure, integration of body building and competition, simplicity in operation and strong interestingness.

Description

Multifunctional body-building equipment

Technical Field

The invention relates to the technical field of fitness equipment, in particular to multifunctional fitness equipment.

Background

With the rapid pace development of society, the improvement of income level of residents, the enhancement of health consciousness of people and the change of consumption behaviors, with the rising of fitness fashion, more and more people are aware of the close relationship between sports and health, so that a plurality of fitness places grow naturally, and a plurality of people walk into a fitness center to exercise bodies. In the process, a plurality of body-building persons feel dull, and the fitness equipment with single function influences the enthusiasm of people for fitness to a certain extent.

How to solve the above technical problems is the subject of the present invention.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides multifunctional fitness equipment which is ingenious in structure, simple to operate and control and strong in interestingness, and integrates fitness and competition.

In order to achieve the purpose, the invention provides multifunctional body building equipment which comprises a base, two turntables and two course units, wherein the two turntables are correspondingly and rotatably connected to two ends of one side face of the base, the two course units are arranged on the base and respectively correspond to the two turntables one by one, the turntables control the corresponding course units, when the multifunctional body building equipment is used, a double-person match can be realized through single-person operation, when a double-person match is carried out, one turntable is operated by two persons respectively to complete the corresponding course, so that the competition of a person who finishes the course firstly can be realized, the body building can be realized, and the interestingness of the body building process can be increased.

The invention is characterized in that the race course unit comprises a race course rail vertically arranged on the base, race course blocks in sliding fit with the race course rail, a U-shaped frame with an upward opening arranged at the top of the race course rail, a threaded rod penetrating through the closed end of the U-shaped frame and in threaded fit with the U-shaped frame, the bottom end of the threaded rod being in rotating fit with the race course blocks, a circumferential grinding disc coaxially fixed at the top end of the threaded rod, and a surface grinding disc with a side surface matched with the circumferential surface of the circumferential grinding disc, wherein the surface grinding disc is driven to rotate by the corresponding rotary disc, when the race course unit is used for double race, the race course blocks in the two race course units are firstly adjusted to be positioned at the same initial height, so that the race can be started, when the rotary discs rotate, when the surface grinding discs are in friction fit with the circumferential grinding disc, the circumferential grinding discs rotate along with the surface grinding disc, under the action of the threaded rod, the race course blocks slide along the race course rail, preferably, the course unit further comprises an upper distance sensor positioned at the top of the course rail and a lower distance sensor positioned at the bottom of the course rail, so that the monitoring of the relative distance of the course block is realized, and the person who finishes the course firstly is determined.

The competition course unit also comprises a first cylinder shaft which is coaxially fixed with the flour milling disc, two ends of the first cylinder shaft respectively penetrate through two ends of the opening end of the U-shaped frame, a transmission shaft which coaxially penetrates through the first cylinder shaft, and a first belt transmission mechanism which is arranged between the transmission shaft and the corresponding rotating shaft of the rotating disc.

The invention is characterized in that the transmission shaft is matched with the U-shaped frame in a rotating way, the first cylinder shaft is matched with the transmission shaft in a sliding way along the direction of the central line of the first cylinder shaft, the race course unit also comprises a race course control assembly for controlling the first cylinder shaft to move back and forth, when the first cylinder shaft moves to drive the surface grinding disc to be in friction fit with the circumferential grinding disc, the race course is started, when the first cylinder shaft moves in the opposite direction, the surface grinding disc is not matched with the circumferential grinding disc, the race course is paused, and the interest of the body building process can be further increased.

The invention is characterized in that the race control assembly comprises a connecting sleeve which is positioned outside the U-shaped frame and is matched with the end part of the first cylinder shaft in a rotating way, a hinged rod which is hinged with the U-shaped frame in the middle part and is hinged with the connecting sleeve in the top end, a magnetic attraction block which is arranged at the bottom end of the hinged rod, a first reset torsion spring which is arranged at the hinged part of the hinged rod and the U-shaped frame, and an electromagnet which is arranged on the U-shaped frame and is matched with the magnetic attraction block in a magnetic way, when the electromagnet is electrified, the magnetic attraction block can be attracted, under the action of the hinged rod, the connecting sleeve can drive the first cylinder shaft to slide and further drive the surface grinding disc to be contacted with the circumferential grinding disc and to be in friction fit, at the moment, the first reset torsion spring generates elastic deformation, when the electromagnet is stopped to be electrified, the rod is hinged to rotate under the action of the first reset torsion spring, so that the first cylinder shaft can be driven to slide reversely, thereby driving the surface grinding disc to be far away from the circumferential grinding disc.

The multifunctional fitness equipment is characterized by further comprising timing units which are respectively in one-to-one correspondence with the competition control assemblies, wherein the timing units control the pausing and starting of the competition process, namely in the whole competition process, the timing units provide a plurality of times of countdown, in the process of each countdown, an operator can indirectly drive the competition process block to slide along the competition process rail through a turntable, the countdown finishes the pausing of the competition process, and the operator needs to start the timing units again to count down for a new round, so that the reciprocating motion is realized, and the interest of the fitness can be further increased.

The timing unit comprises an on button arranged on the base and electrically connected with the electromagnet, an off button control assembly arranged on the base, a driving assembly for controlling the off button control assembly, an off button controlled by the off button control assembly and electrically connected with the electromagnet, and a timing part matched with the off button control assembly.

The invention is particularly characterized in that the closing button control assembly comprises a fixed rail connected with the base, a translation rail which is vertical to the fixed rail and the center of which is in sliding fit with the fixed rail, a first slide block rotationally connected with the center of the translation rail, a support arm arranged on one side of the center of the fixed rail, a swing arm, one end of which is in rotating fit with the support arm and the other end of which is in sliding fit with the first slide block, a second reset torsion spring arranged between the swing arm and the first slide block, a second slide block matched with the translation rail, a connecting rod, one end of which is in rotating fit with the second slide block, and a rotating part connected with the connecting rod;

one end of the rotating piece is hinged with the other end of the connecting rod, and the other end of the rotating piece is driven by the driving component to rotate;

the rotating shaft of the end part of the rotating part far away from the connecting rod is positioned at the center of the fixed rail and is respectively vertical to the fixed rail and the translation rail;

the closing button is positioned at one end part of the translation rail and is matched with the second sliding block;

the timing component controls the swing amplitude of the swing arm.

When the timing device is used, an operator operates the timing part to enable the timing part to control the swing arm to swing with the maximum swing amplitude as far as possible, the translation rail is driven to move back and forth along the fixed rail, the rotating part is driven to rotate, the second sliding block moves back and forth along the translation rail under the action of the connecting rod, at the moment, the swing amplitude of the second sliding block on the translation rail is small, the closing button located at the end part cannot be triggered, under the action of the second reset torsion spring, the damping type swing back of the swing arm is generated, namely the swing amplitude is gradually reduced, namely the amplitude of the translation rail moving back and forth along the fixed rail is gradually reduced, otherwise, the swing amplitude of the second sliding block on the translation rail is increased until the second sliding block triggers the closing button, namely the countdown is finished.

The invention is characterized in that the driving component comprises a driving shaft which is the same as the rotating shaft of the rotating component, a motor which is fixed in the base, a fixing plate which is used for installing the motor is arranged in the base, and a third belt transmission mechanism which is arranged between the driving shaft and the output shaft of the motor, preferably, two driving components are driven by the same driving shaft and rotate synchronously, so that the using amount of the motor can be reduced, and the synchronization of the button-off control components in the competition process can be ensured.

The invention is characterized in that the rotating part is a triangular gear rack, the rotating shaft of the rotating part is positioned at a vertex angle of the triangle and is vertical to the surface of the triangle, the timing part comprises a timing component and a rocking handle for driving the timing component; the timing assembly comprises a second barrel shaft which is rotatably sleeved on the rotating shaft of the rotating part, a second gear and a third gear which are respectively rotatably connected at the vertex angle of the triangular rotating part and are meshed with each other, a first gear which is coaxial with the second barrel shaft and meshed with the second gear, and a timing driving structure which is arranged between the rocking handle and the second barrel shaft; the rotating shaft of the part of the connecting rod hinged with the rotating part is coaxial with the rotating shaft of the third gear, when in use, the rotating part rotates, the connecting rod drives the second slider to move back and forth along the translation rail, the position of the translation rail on the fixed rail is unchanged under the action of the second reset torsion spring, at the moment, an operator applies force to the rocking handle, the second cylinder shaft rotates under the action of the timing driving structure, so that the second gear rotates along the circumferential direction of the first gear, the third gear drives the connecting rod to rotate at the same time, the translation rail is driven to move back and forth along the fixed rail, the swing arm swings under the action of the first slider, the operator can control the rotating angle of the second cylinder shaft through the rocking handle, the swinging amplitude of the translation rail is controlled, the swing amplitude of the swing arm is further controlled, after the force applied to the rocking handle is cancelled, countdown starts, the first gear gradually resets in the swinging process of the swing arm until the countdown ends, the first gear returns to the original position.

The timing driving structure comprises a worm wheel with a rotating shaft coaxial with the rotating shaft of the second cylinder shaft, a worm rotatably arranged in the base and meshed with the worm wheel, a second bevel gear with a rotating shaft coaxial with the output shaft of the rocking handle, a first bevel gear meshed with the second bevel gear, and a second belt transmission mechanism arranged between the rotating shaft of the first bevel gear and the rotating shaft of the worm.

When the worm gear type worm gear transmission mechanism is used, the rocking handle is rotated, and under the action of the first bevel gear, the second bevel gear and the second belt transmission mechanism which are meshed with each other, the worm rotates to drive the worm gear to rotate, so that the second cylinder shaft can be driven to rotate.

In addition, also can set up on the rocking handle output shaft clockwork spring and replace the second torsional spring that resets, correspondingly, be equipped with on the base and be used for installing the clockwork spring's barrel, simple structure and the maintenance of being convenient for.

The invention has the beneficial effects that: the invention is provided with two corresponding turntables and race course units, which can realize single body-building and double race, increase the interest of body-building exercise and further improve the enthusiasm of body-building people in exercise; a race control component is arranged to control the pause and start of the race course, so that the interest of the body building process is further increased; setting a timing unit to control a race control assembly so as to control the pause and the start of a race; the invention has skillful structure, integrates body building and interesting competition, and is suitable for wide popularization and application.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the internal connection relationship of the present invention;

FIG. 3 is a schematic diagram of a timing unit according to the present invention;

FIG. 4 is a right side view of the present invention;

fig. 5 is a right side view of the invention, partially in section.

Wherein the reference numerals are: 1. a base; 11. a fixing plate; 12. a barrel; 2. a turntable; 3. a course unit; 301. a U-shaped frame; 302. track of course; 303. a competition block; 304. a threaded rod; 305. a circumferential grinding disc; 306. a first cylindrical shaft; 307. a surface grinding disc; 308. a drive shaft; 309. a first belt drive mechanism; 310. connecting sleeves; 311. a hinged lever; 312. a magnetic block; 313. an electromagnet; 314. an upper distance sensor; 315. a lower distance sensor; 4. a timing unit; 41. closing the button control assembly; 411. fixing the rail; 412. a support arm; 413. swinging arms; 414. a first slider; 415. translating the rail; 416. a second slider; 417. a connecting rod; 418. a rotating member; 42. a timing component; 421. a first gear; 422. a second gear; 423. a third gear; 424. a second cylindrical shaft; 425. a worm gear; 426. a worm; 427. a second belt drive mechanism; 428. a first bevel gear; 429. a second bevel gear; 43. a drive assembly; 430. a motor; 431. a third belt drive mechanism; 432. a drive shaft; 44. a rocking handle; 45. closing the button; 46. the button is turned on.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

Referring to fig. 1 to 5, an embodiment of the present invention provides a multifunctional exercise device, including a base 1, two rotating discs 2 correspondingly and rotatably connected to two ends of one side of the base 1, and two course units 3 respectively arranged on the base 1 and corresponding to the two rotating discs 2 one by one, wherein the rotating discs 2 control the corresponding course units 3, when in use, the multifunctional exercise device can be operated by one person and also can realize double competition, when a double competition is performed, two rotating discs 2 are respectively operated to complete the corresponding courses, so that a person who completes the courses is won first, and exercise can be realized, and the interest of the exercise process can be increased.

The invention is characterized in that the course unit 3 comprises a course rail 302 vertically arranged on the base 1, a course block 303 in sliding fit with the course rail 302, a U-shaped frame 301 with an upward opening arranged on the top of the course rail 302, a threaded rod 304 which penetrates through the closed end of the U-shaped frame 301 and is in threaded fit with the U-shaped frame 301, the bottom end of the threaded rod is in rotating fit with the course block 303, a circumferential grinding disc 305 coaxially fixed on the top end of the threaded rod 304, and a face grinding disc 307 with a side surface matched with the circumferential surface of the circumferential grinding disc 305, wherein the face grinding disc 307 is driven to rotate by the corresponding rotary disc 2, when the double-player match is used, the course blocks 303 in the two course units 3 are firstly adjusted to be positioned at the same initial height, so as to start the match, when the rotary disc 2 rotates, when the face grinding disc 307 is in friction fit with the circumferential grinding disc 305, the circumferential grinding disc 305 rotates along with the circumferential grinding disc, under the action of the threaded rod 304, the course block 303 slides along the course rail 302, and the person who finishes the course first wins, preferably, the course unit 3 further includes an upper distance sensor 314 located at the top of the course rail 302 and a lower distance sensor 314 located at the bottom of the course rail 302, so as to monitor the relative distance of the course block 303, thereby determining the person who finishes the course first.

The invention is characterized in that the course unit 3 further comprises a first cylinder shaft 306 coaxially fixed with the surface grinding disc 307 and having two ends respectively penetrating through two ends of the open end of the U-shaped frame 301, a transmission shaft 308 coaxially penetrating through the first cylinder shaft 306, and a first belt transmission mechanism 309 arranged between the transmission shaft 308 and the corresponding rotating shaft of the rotating disc 2, when the rotating disc 2 rotates, the transmission shaft 308 rotates under the action of the first belt transmission mechanism 309 to drive the first cylinder shaft 306 to rotate, so that the surface grinding disc 307 can be driven to rotate, the structure and the manufacture are simple, and the operation is convenient.

The specific feature of the present invention is that the transmission shaft 308 is rotatably engaged with the U-shaped frame 301, the first cylinder 306 is slidably engaged with the transmission shaft 308 along the central line direction of the first cylinder 306, the course unit 3 further comprises a course control assembly for controlling the first cylinder 306 to move back and forth, when the first cylinder 306 moves to drive the surface grinding disc 307 to frictionally engage with the circumferential grinding disc 305, the course is started, and when the first cylinder 306 moves in the opposite direction, the surface grinding disc 307 is not engaged with the circumferential grinding disc 305, and the course is paused, so as to further increase the interest of the exercise process.

The invention is also characterized in that the race course control assembly comprises a connecting sleeve 310 which is positioned outside the U-shaped frame 301 and is in rotating fit with the end part of the first cylindrical shaft 306, a hinged rod 311 of which the middle part is hinged with the U-shaped frame 301 and of which the top end is hinged with the connecting sleeve 310, a magnetic attraction block 312 which is arranged at the bottom end of the hinged rod 311, a first reset torsion spring which is arranged at the hinged part of the hinged rod 311 and the U-shaped frame 301, and an electromagnet 313 which is arranged on the U-shaped frame 301 and is in magnetic attraction fit with the magnetic attraction block 312, when the electromagnet 313 is electrified, the magnetic attraction block 312 can be attracted, under the action of the hinged rod 311, the connecting sleeve 310 can drive the first cylindrical shaft 306 to slide, further drive the grinding disc 307 to be in contact with and in friction fit with the circumferential grinding disc 305, at the moment, the first reset torsion spring generates elastic deformation, when the electromagnet 313 is electrified, the hinged rod 311 rotates under the action of the first reset torsion spring, so as to drive the first cylindrical shaft 306 to reversely slide, thereby bringing the face grinding disc 307 away from the circumferential grinding disc 305.

The multifunctional body-building equipment is characterized by further comprising timing units 4 which are respectively in one-to-one correspondence with the race course control assemblies, wherein the timing units 4 control the pause and the start of the race course, namely in the whole race course, the timing units 4 provide countdown for multiple times, in each countdown process, an operator can indirectly drive the race course blocks 303 to slide along the race course rails 302 through the turntables 2, the race course is paused after the countdown is finished, and the operator needs to restart the timing units 4 to count down for a new round, so that the reciprocation is realized, and the interest of body building can be further increased.

The invention is also characterized in that the timing unit 4 comprises an on button 46 arranged on the base 1 and electrically connected with the electromagnet 313, an off button control assembly 41 arranged on the base 1, a driving assembly 43 for controlling the off button control assembly 41, an off button 45 controlled by the off button control assembly 41 and electrically connected with the electromagnet 313, and a timing part matched with the off button control assembly 41, when in use, an operator starts the driving assembly 43, the off button control assembly 41 starts to act, controls the timing part to start countdown, triggers the on button 46 to electrify the electromagnet 313, namely start the game process, and when the off button control assembly 41 triggers the off button 45 to finish countdown, namely pause the game process, the operator controls the timing part to start countdown again and trigger the on button 46, thereby continuing the game process, and reciprocating in such a way until the whole game process is finished, preferably, the two open buttons 46 are respectively an upper button and a lower button, the competition that the competition course 303 slides upwards or downwards is correspondingly carried out, when the upper button is triggered, the winner is correspondingly determined by the upper distance sensor 314, when the lower button is triggered, the winner is correspondingly determined by the lower distance sensor 315, the corresponding open button 46 needs to be determined when the operator counts down each time in the competition process, the interest of the competition can be further increased, furthermore, the open button 46 is positioned below the corresponding rotary disc 2, the operator can be triggered by feet, and the diversity of the movement is further increased.

The present invention is further characterized in that the button-closing control assembly 41 comprises a fixed rail 411 connected with the base 1, a translation rail 415 which is perpendicular to the fixed rail 411 and whose center is in sliding fit with the fixed rail 411, a first slider 414 which is rotatably connected with the center of the translation rail 415, a supporting arm 412 which is arranged on one side of the center of the fixed rail 411, a swing arm 413 whose one end is in rotating fit with the supporting arm 412 and whose other end is in sliding fit with the first slider 414, a second reset torsion spring which is arranged between the swing arm 413 and the first slider 414, a second slider 416 which is matched with the translation rail 415, a connecting rod 417 whose one end is in rotating fit with the second slider 416, and a rotating member 418 which is connected with the connecting rod 417;

one end of the rotating part 418 is hinged with the other end of the connecting rod 417, and the other end is driven by the driving component 43 to rotate;

the rotating shaft of the end of the rotating member 418 away from the connecting rod 417 is located at the center of the fixed rail 411 and is perpendicular to the fixed rail 411 and the translation rail 415 respectively;

the off button 45 is positioned at one end part of the translation rail 415 and is matched with the second sliding block 416;

the timing member controls the amplitude of the swing arm 413.

When the timing device is used, an operator operates the timing part to enable the control swing arm to swing at the maximum swing amplitude as much as possible to drive the translation rail 415 to move back and forth along the fixed rail 411, the rotating part 418 is driven to rotate, the second sliding block 416 moves back and forth along the translation rail 415 under the action of the connecting rod 417, at this time, the swing amplitude of the second sliding block 416 on the translation rail 415 is small and cannot trigger the off button 45 at the end part, and under the action of the second reset torsion spring, the damping type swing back of the swing arm 413 occurs, namely, the swing amplitude is gradually reduced, namely, the amplitude of the back and forth movement of the translation rail 415 along the fixed rail 411 is gradually reduced, otherwise, the swing amplitude of the second sliding block 416 on the translation rail 415 is increased until the second sliding block 416 triggers the off button 45, namely, the countdown is finished.

The present invention is further characterized in that the driving assembly 43 comprises a driving shaft 432 which is coaxial with the rotating shaft of the rotating member 418, a motor 430 which is fixed in the base 1, a fixing plate 11 which is provided in the base 1 and is used for mounting the motor 430, and a third belt transmission mechanism 431 which is arranged between the driving shaft 432 and the output shaft of the motor 430, preferably, the two driving members 418 are driven by the same driving shaft 432 and rotate synchronously, so that the number of the motors can be reduced, and the synchronization of the button-closing control assembly 41 can be ensured during the competition.

The present invention is also characterized in that the rotating member 418 is provided as a triangular gear frame, the rotating shaft of the rotating member 418 is positioned at a vertex angle of the triangle and is perpendicular to the plane of the triangle, the timing member includes the timing assembly 42, and the rocking handle 44 for driving the timing assembly 42; the timing assembly 42 comprises a second cylindrical shaft 424 rotatably sleeved on the rotating shaft of the rotating member 418, a second gear 422 and a third gear 423 which are respectively rotatably connected at the vertex angle of the triangular rotating member and are mutually meshed, a first gear 421 which is coaxial with the second cylindrical shaft 424 and is meshed with the second gear 422, and a timing driving structure arranged between the rocking handle 44 and the second cylindrical shaft 424; when the timing device is used, the rotating member 418 rotates, the connecting rod 417 drives the second slider 416 to move back and forth along the translation rail 415, the position of the translation rail 415 on the fixed rail 411 is unchanged due to the action of the second reset torsion spring, at this time, an operator applies force to the crank 44, the second cylinder shaft 424 rotates under the action of the timing driving structure, so that the second gear 422 rotates circumferentially along the first gear 421, meanwhile, the third gear 423 drives the connecting rod 417 to rotate, the translation rail 415 is driven to move back and forth along the fixed rail 411, the swing arm 413 swings under the action of the first slider 414, the operator can control the rotation angle of the second cylinder shaft 424 through the crank 44, control the swing amplitude of the translation rail 415, further control the swing amplitude of the swing arm 413, after the force application to the crank 44 is cancelled, countdown starts, the first gear 421 gradually resets in the swing back process of the swing arm 413, until the countdown is finished, the first gear 421 returns to the original position.

It is also a specific feature of the present invention that the chronograph drive mechanism includes a worm wheel 425 whose rotation axis is coaxial with the rotation axis of the second cylinder shaft 424, a worm 426 rotatably provided in the base 1 to be engaged with the worm wheel 425, a second bevel gear 429 whose rotation axis is coaxial with the output shaft of the rocking handle 44, a first bevel gear 428 engaged with the second bevel gear 429, and a second belt transmission 427 provided between the rotation axis of the first bevel gear 428 and the rotation axis of the worm 426.

In use, the rocking handle 44 is rotated, and under the action of the first bevel gear 428 and the second bevel gear 429 which are engaged with each other and the second belt transmission mechanism 427, the worm 426 rotates to drive the worm wheel 425 to rotate, and thus the second cylinder 424 is driven to rotate.

In addition, a spring on the output shaft of the rocking handle 44 can be used to replace the second reset torsion spring, and correspondingly, the base 1 is provided with the spring barrel 12 for installing the spring, so that the structure is simple and the maintenance is convenient.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.

Claims

1. The utility model provides a multi-functional body-building equipment, its characterized in that includes base (1), and corresponding rotation is connected two carousel (2) at base (1) a side both ends, and set up on base (1), respectively with two race course units (3) of carousel (2) one-to-one, carousel (2) control is corresponding race course unit (3).

2. The multifunctional fitness device of claim 1, wherein the course unit (3) comprises a course rail (302) vertically arranged on the base (1), a course block (303) in sliding fit with the course rail (302), a U-shaped frame (301) with an upward opening arranged at the top of the course rail (302), a threaded rod (304) which penetrates through the closed end of the U-shaped frame (301) and is in threaded fit with the U-shaped frame (301), the bottom end of the threaded rod is in rotating fit with the course block (303), a circumferential grinding disc (305) coaxially fixed at the top end of the threaded rod (304), and a surface grinding disc (307) with a side surface matched with the circumferential surface of the circumferential grinding disc (305), wherein the surface grinding disc (307) is driven to rotate by the corresponding turntable (2).

3. The multifunctional fitness device of claim 2, characterized in that the course unit (3) further comprises a first cylinder shaft (306) fixed coaxially with the surface grinding disc (307) and having two ends respectively penetrating through two ends of the open end of the U-shaped frame (301), a transmission shaft (308) coaxially penetrating through the first cylinder shaft (306), and a first belt transmission mechanism (309) arranged between the transmission shaft (308) and the corresponding rotation shaft of the turntable (2).

4. The multi-function exercise apparatus according to claim 3, wherein said drive shaft (308) is rotatably engaged with said U-shaped frame (301), said first reel (306) is slidably engaged with said drive shaft (308) along a direction of a center line of said first reel (306), and said course unit (3) further comprises a course control assembly for controlling said first reel (306) to move back and forth.

5. The multifunctional fitness device of claim 4, wherein the game control assembly comprises a connecting sleeve (310) which is located outside the U-shaped frame (301) and is in rotating fit with the end of the first barrel shaft (306), a hinge rod (311) which is hinged to the U-shaped frame (301) in the middle and is hinged to the connecting sleeve (310) in the top, a magnetic attraction block (312) which is arranged at the bottom end of the hinge rod (311), a first reset torsion spring which is arranged at the hinged position of the hinge rod (311) and the U-shaped frame (301), and an electromagnet (313) which is arranged on the U-shaped frame (301) and is in magnetic attraction fit with the magnetic attraction block (312).

6. Multifunction fitness device according to claim 4 or 5, characterized in that it further comprises timing units (4) in one-to-one correspondence with the game control components, respectively.

7. The multi-functional fitness device of claim 6, wherein the timing unit (4) comprises an on button (46) provided on the base (1) and electrically connected to the electromagnet (313), an off button control assembly (41) provided on the base (1), a drive assembly (43) controlling the off button control assembly (41), an off button (45) controlled by the off button control assembly (41) and electrically connected to the electromagnet (313), and a timing member cooperating with the off button control assembly (41).

8. The multi-functional fitness apparatus of claim 7, wherein the off-button control assembly (41) comprises a fixed rail (411) connected to the base (1), a translation rail (415) perpendicular to the fixed rail (411) and having a center slidably engaged with the fixed rail (411), a first slider (414) rotatably connected to the center of the translation rail (415), a support arm (412) disposed at one side of the center of the fixed rail (411), a swing arm (413) having one end rotatably engaged with the support arm (412) and the other end slidably engaged with the first slider (414), a second return torsion spring disposed between the swing arm (413) and the first slider (414), a second slider (416) engaged with the translation rail (415), a link (417) having one end rotatably engaged with the second slider (416), and a rotating member (418) connected to the connecting rod (417);

one end of the rotating part (418) is hinged with the other end of the connecting rod (417), and the other end of the rotating part is driven by the driving component (43) to rotate;

the rotating shaft of the end part of the rotating part (418) far away from the connecting rod (417) is positioned at the center of the fixed rail (411) and is respectively vertical to the fixed rail (411) and the translation rail (415);

the closing button (45) is positioned at one end part of the translation rail (415) and is matched with the second sliding block (416);

the timing component controls the swing amplitude of the swing arm (413).

9. The multi-functional fitness device of claim 7 or 8, wherein the drive assembly (43) comprises a drive shaft (432) which is identical to the rotation axis of the rotation member (418), a motor (430) which is fixed in the base (1), and a third belt transmission (431) which is arranged between the drive shaft (432) and the output shaft of the motor (430).

10. The multi-function exercise apparatus according to any of claims 7 to 9, wherein said rotatable member (418) is provided as a triangular gear carrier, the axis of rotation of said rotatable member (418) being located at an apex of the triangle and perpendicular to the plane of the triangle, the timing means comprising a timing assembly (42), and a crank (44) for actuating said timing assembly (42); the timing assembly (42) comprises a second cylinder shaft (424) which is rotatably sleeved on a rotating shaft of the rotating part (418), a second gear (422) and a third gear (423) which are respectively rotatably connected at the vertex angle of the triangular rotating part and meshed with each other, a first gear (421) which is coaxial with the second cylinder shaft (424) and meshed with the second gear (422) and a timing driving structure which is arranged between the rocking handle (44) and the second cylinder shaft (424); the rotating shaft of the hinged part of the connecting rod (417) and the rotating part (418) is coaxial with the rotating shaft of the third gear (423).