CN112843604B

CN112843604B - Body-building center

Info

Publication number: CN112843604B
Application number: CN202110084857.6A
Authority: CN
Inventors: 孙昊; 林喜群
Original assignee: Hefei Leather Animal Intelligent Technology Co ltd
Current assignee: Cool Snail Xiamen Technology Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2024-07-12
Anticipated expiration: 2041-01-22
Also published as: CN112843604A

Abstract

The invention discloses a body-building center, which comprises an armrest, a frame, a driving device, a holding device, a first lifting mechanism, a running belt, a front roller, a rear roller, a running platform, a motor control board, a brake resistor and a gradient sensor, wherein the front roller and the rear roller are respectively wound at two ends of the running belt; two sides of the frame are respectively and fixedly provided with a enclasping device, each enclasping device is rotatably provided with a handrail, and after the driving device drives the handrail to rotate relative to the frame, the handrail is enclasped and fixed by the enclasping device; the front part of the running platform is connected with a first lifting mechanism, and the first lifting mechanism drives the front part of the running platform to lift. The scheme provides a body-building user to grasp the hand rest which is rotated to hug tightly to perform a rock climbing-like movement under the condition of running with a large gradient.

Description

Body-building center

Technical Field

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

Background

The body-building center is a novel body-building equipment concept, and the concept is mainly to design various body-building equipment into a whole and create a full-scale home body-building equipment integration center.

The utility model relates to a body-building center including treadmill, main display screen, it is well known that current treadmill and display screen's function is comparatively single, leads to the user's use mode still to be limited to traditional function, can't maximize the variety and the recreational of performance body-building apparatus, consequently prior art can't satisfy the growing market demand at all.

Therefore, the inventor inherits the rich design development and actual manufacturing experience of the related industry for many years, and particularly develops a body-building center with a brand new use mode aiming at the existing closed place so as to achieve the purpose of better value.

Disclosure of Invention

The invention aims to provide a body-building center, which enables a body-building user to grasp a hand rest which is rotated to hug tightly to perform a rock climbing-like movement mode under the condition of running with a large gradient, and can watch a main display screen and adjust the display screen to move up and down, rotate and pitch angle to adapt to the needs of the user when climbing the rock.

To achieve the above object, the solution of the present invention is: a body-building center comprises a main display screen, armrests, a frame, a rotating shaft, a running belt, a front roller, a rear roller, a running table, a motor control board, a brake resistor, a gradient sensor, a driving device, a holding device, a first lifting mechanism, a pitching mechanism and a rotating mechanism;

The two sides of the frame are respectively and fixedly provided with the enclasping device, each enclasping device is rotatably provided with a handrail, the driving device is arranged on the handrail, the enclasping device is provided with a first shaft hole for the output shaft of the driving device to be connected, and the driving device drives the handrail to rotate relative to the frame and then is enclasped and fixed by the enclasping device;

The first lifting mechanism is arranged on the frame, the front part of the running platform is connected with the first lifting mechanism, and the first lifting mechanism drives the front part of the running platform to lift so as to realize the lifting of the gradient of the running platform;

the front end of the running platform is provided with the front roller, the rear end of the running platform is provided with the rear roller, the running belt is sleeved outside the running platform, the two ends of the running belt are respectively connected with the front roller and the rear roller in a winding manner, the output end of the motor is connected with the front roller, the motor control board is respectively connected with the motor, the brake resistor and the gradient sensor, the gradient sensor can automatically record gradient data of the running platform when the gradient of the running platform is lifted, then the gradient data are sent to the motor control board, the resistance value of the brake resistor is adjusted by the motor control board according to the electric energy consumption required by the motor, when the gradient is lifted, the resistance value of the brake resistor is reduced, the rotation speed of the output end of the motor is reduced, the rotation speed of the front roller is reduced, when the gradient is lowered, the resistance value of the brake resistor is increased, the rotation speed of the output end of the motor is increased, and the rotation speed of the front roller is increased, and the running belt is accelerated, so that the running belt can keep constant speed at high and low gradients;

The two armrests are rotatably connected with the rotating shaft, and the display screen is arranged on the rotating shaft; the pitching mechanism comprises a first rotating motor, a first screw rod and a first gear, the first gear is sleeved and fixed on the rotating shaft, an external thread is arranged on the first screw rod and is in threaded fit with the first gear, and the first rotating motor is connected with and drives the first screw rod to rotate; the rotating mechanism comprises a second rotating motor, a second screw rod and a second gear, wherein the second rotating motor, the second screw rod and the second gear are arranged on the frame, the second rotating motor is connected with and drives the second screw rod to rotate, external threads are arranged on the second screw rod and are in threaded fit with the second gear, a protruding shaft is arranged at the back of the display screen, and the protruding shaft is fixed in a central hole of the second gear in a penetrating mode.

As a further improvement of the scheme, the enclasping device comprises a fixed toothed plate, an eccentric block, an eccentric retainer ring, an annular gear, a clamp spring, a movable toothed plate and a closed ring, wherein the fixed toothed plate is disc-shaped, a second shaft hole is formed in the middle of the axial direction of the fixed toothed plate, a first concave cavity is concavely formed in one side surface of the thickness direction of the fixed toothed plate, a group of first connecting bosses used for being connected with the frame are convexly arranged on the other side surface of the thickness direction of the fixed toothed plate, a gear ring is formed on the inner circumferential wall body of the first concave cavity, and an eccentric block seat is convexly arranged on one side of the second shaft hole facing the first concave cavity; the eccentric block comprises a first eccentric block and a second eccentric block, the first eccentric block and the second eccentric block are identical in appearance and are circular, a pair of first blocking grooves are formed in the outer ring of the first eccentric block, a first eccentric hole is formed in the middle of the first eccentric block, a first clamping spring groove is formed in one end of the first eccentric hole, a pair of second blocking grooves are formed in the outer ring of the second eccentric block, the positions of the pair of second blocking grooves correspond to those of the pair of first blocking grooves, a second eccentric hole corresponding to the positions of the first eccentric hole is formed in the middle of the second eccentric block, a second clamping spring groove is formed in one end of the second eccentric hole, the second clamping spring groove and the first clamping spring groove are identical in shape and are arranged in a staggered mode, and the first eccentric block and the second eccentric block are sleeved on the eccentric block seat through the respective first eccentric hole and second eccentric hole; the eccentric check ring is circular, the first shaft hole is formed in the axial middle of the eccentric check ring, a pair of eccentric check blocks are convexly arranged on one side surface of the eccentric check ring in the thickness direction, an eccentric shaft seat is convexly arranged on one side of the first shaft hole facing the eccentric check block, the eccentric shaft seat is arranged in a second shaft hole of the fixed toothed plate, the pair of eccentric check blocks are arranged in a pair of first blocking grooves and a pair of second blocking grooves of the first eccentric block and the second eccentric block, and a yielding groove is formed in the outer circle edge of the eccentric check ring; the inner gear ring is in a circular ring shape, a third shaft hole is formed in the middle of the axial direction of the inner gear ring, and inner teeth for meshing with the inner gear ring are formed in the radial outer circumferential wall body of the inner gear ring; the clamping springs are circular, and a pair of clamping spring feet which are used for hooking the first clamping spring groove and the second clamping spring groove are formed at the opening end of each clamping spring; the movable toothed plate is disc-shaped, a fourth shaft hole is formed in the middle of the axial direction of the movable toothed plate, a second concave cavity is concavely formed in one side face of the thickness direction of the movable toothed plate, a group of second connecting bosses used for being connected with the armrests are convexly arranged on the other side face of the thickness direction of the movable toothed plate, and tooth grooves used for being meshed with the inner teeth are formed in the inner circumferential wall body of the second concave cavity; the closed ring is enclosed at the periphery of the outer edges of the fixed toothed plate and the movable toothed plate.

As a further improvement of the scheme, the bottom of the frame is provided with the base, the upper surface of the base is concaved downwards to form the storage cavity, the running platform is movably arranged above the storage cavity, when the running platform is unfolded downwards relative to the frame, the running platform covers the storage cavity, and when the running platform is folded and combined relative to the frame, the storage cavity is exposed.

As a further improvement of the scheme, a base is arranged at the bottom of the frame, a stop block is arranged on the upper surface of the base in a protruding mode, the stop block is located on the front side of the center line of the running table, and when the running table is lifted to the limit and parallel to the frame, the lower portion of the running table abuts against the stop block.

As a further improvement of the scheme, the body-building center further comprises a cross flow fan and a negative ion generator, the frame is in a shape like a Chinese character 'men', the top of the frame is a cross beam, a cavity is formed in the shell of the cross beam, the cross flow fan is arranged in the cavity along the length direction of the cross beam, an air outlet is formed in the position, corresponding to the cross flow fan, of the shell of the cross beam, the air outlet faces the running table, and the negative ion generator is arranged in the cavity and is located on the other side of the cross flow fan, corresponding to the air outlet.

As a further improvement of the scheme, the body-building center further comprises a rolling curtain, the frame is in a shape like a Chinese character 'men', the top of the frame is a cross beam, a cavity is formed in the cross beam, a scroll along the length direction of the cross beam is arranged in the cavity, a curtain outlet is formed in the lower position of the scroll in the cavity, the top end of the rolling curtain is wound on the scroll, and the bottom end of the rolling curtain extends out of the curtain outlet.

As a further improvement of the scheme, the body-building center also comprises a button switch, wherein the button switch comprises a mounting seat, a PCB (printed circuit board), a swinging assembly, a knob assembly and a pressing assembly;

the PCB is positioned above the mounting seat, the knob assembly is arranged on the PCB, and the knob assembly is of an annular hollow structure and is arranged for the pressing assembly to be arranged in;

The swinging assembly comprises a swinging seat and a rotating shaft, the swinging seat is fixed at the bottom of the PCB, the center of the bottom of the swinging seat is provided with the rotating shaft, two ends of the rotating shaft are rotationally connected to the mounting seat, an upper contact switch and a lower contact switch are respectively arranged at two sides of the rotating shaft at the bottom of the PCB, a yielding groove is formed in the position of the swinging seat corresponding to the upper contact switch and the lower contact switch, an upper convex column and a lower convex column are arranged on the mounting seat, and the upper convex column and the lower convex column are respectively located below the upper contact switch and the lower contact switch.

As a further improvement of the scheme, the exercise center further comprises a first chest expander, wherein the bottom of the frame is provided with a base, the width of the base is larger than that of the running platform, so that the base protrudes towards two sides of the running platform, and at least more than one first chest expander is arranged at the protruding part; the first chest expander comprises a first torque output mechanism, a first pull wire and a first handle, wherein the first torque output mechanism is arranged in the base, a first outlet is formed in the base, one end of the first pull wire is connected with the first torque output mechanism, and the other end of the first pull wire penetrates out of the first outlet and is connected with the first handle.

As a further improvement of the above solution, the exercise center further comprises a double-screen switching display device, the double-screen switching display device comprises

The first control unit is arranged on the main display screen and can be connected with the main display screen to generate instruction signals;

a button switch mounted on the main display screen;

The button display screen is arranged on the button switch, and the second control unit is arranged on the button switch and can be connected with the button switch to generate instruction signals;

The instruction signal comprises a display screen switching request signal, a display screen switching agreement signal and a display screen switching refusal signal;

A main board;

The first control unit and the second control unit are both connected with the main board, and the main board can respectively receive the switching display screen request signals sent by the first control unit and the second control unit and respectively send the signals of agreeing to switch the display screens or refusing to switch the display screens to the first control unit and the second control unit.

As the further improvement of above-mentioned scheme, first elevating system includes two running platform lead screws, first gear motor and the running platform nut of cooperation on the running platform lead screw, the vertical installation running platform lead screw respectively in frame both sides, two running platform lead screw connection first gear motor, running platform front portion both sides are equipped with running platform protruding axle, be equipped with the first recess that supplies running platform protruding axle to place on the running platform nut, the running platform nut cooperation is on the running platform lead screw, drives running platform front portion and makes elevating movement along the running platform lead screw.

When the gradient is adjusted, people often neglect acceleration brought by gravity to the running belt, and after the scheme is adopted, the beneficial effects of the invention are that:

1. According to the invention, gradient data can be monitored in real time, and the motor is adjusted in real time according to the gradient data, so that when the gradient of the running platform is increased, the running belt can be braked and slowed down slightly until the speed is consistent with the constant speed, therefore, a user does not need to deliberately speed up, only needs to keep the original constant speed, unexpected danger is avoided, and the use safety is improved.

2. The hand rest is provided with the enclasping device, the enclasping device can be designed to be electric or manual, the universality is wide, the hand rest can be automatically locked after rotating on the body-building center no matter the electric or manual operation is realized, other locking pieces are not required to be arranged for angle fixation, the hand rest is very convenient to use, and the enclasping device has precise structure, so that the locking effect is accurate and reliable.

3. As the running platform can slightly brake and slow down when the gradient is increased, and the armrests can be held tightly at any angle, when the running platform is used by a body-building user, the gradient of the running platform can be adjusted to be high to form a mountain slope, and then the armrests are rotated to be upturned to form a mountain climbing stick, so that the body-building user can grasp the rotated and held mountain climbing stick and step on the mountain slope by feet, and the running platform is more novel than the general running mode, and meets the requirement of being incapable of climbing.

4. The invention can realize the adjustment of any pitching angle and rotation angle through the electric control display screen, such as pitching up, pitching down, turning left and turning right, thereby meeting the requirements of people with different heights on any angle of the display screen.

5. The empty space of the body-building center is fully utilized. The first chest expander is arranged on the base, so that a user can pull the first chest expander from bottom to top to perform tension exercise; and accomodate the chamber and can place article, say body fat scale or weighing scale, when accomodating the chamber and revealing, the user can take out body fat scale and use, after using, put back accomodate the chamber with body fat scale, the running deck is relative the frame is transferred down and is expanded at last, covers and accomodates the chamber to play the effect of hiding the body fat scale of accomodating in the chamber, make full use of space improves the integration level of body-building center, the richness of equipment, helps further to build more perfect body-building center.

6. The invention can realize double-screen switching display and synchronous display of the button display screen and the main display screen, provides multiple watching choices for body-building users, enriches the functions of the main display screen and the button switch, promotes the relevance between the main display screen and the button switch, improves the automation degree of the main display screen and the button switch, has simple and small structure, and is suitable for the production requirements of most enterprises.

7. The cross flow fan has wider coverage range, so that a user can feel cool air while running on the running platform, fatigue is quickly recovered and kept pleasant mood, as is well known, anions can refresh air, eliminate smoke dust and have various medical care effects on human bodies, the negative ion generator capable of generating anions in the air is designed on the back of the cross flow fan, the cross flow fan combines the anions through negative pressure to form negative ion natural wind, and the negative ion natural wind is sent out from an air outlet to the user running on the running platform, so that the air quality of the surrounding environment of a body-building center is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of a exercise center of an embodiment of the present invention, prior to rotation of a handrail;

FIG. 2 is a schematic view of the overall structure of the exercise center after the armrest is rotated and clasped in accordance with one embodiment of the present invention;

FIG. 3 is a schematic view of the structure of an armrest and hugging device according to an embodiment of the present invention (after hiding the mounting box housing);

FIG. 4 is a schematic view of the drive mechanism of an embodiment of the present invention (with the mounting box housing hidden);

FIG. 5 is an exploded view of a hugging device according to an embodiment of the present invention;

FIG. 6 is a second exploded view of a hugging device according to an embodiment of the present invention;

FIG. 7 is a schematic view of the overall structure of a exercise center according to an embodiment of the present invention;

fig. 8 is an enlarged view at a in fig. 7;

FIG. 9 is a schematic diagram of the overall structure of a exercise center according to an embodiment of the present invention;

Fig. 10 is an enlarged view at B in fig. 9;

FIG. 11 is a schematic view of a lifting mechanism according to an embodiment of the present invention;

FIG. 12 is a control block diagram of an armrest according to an embodiment of the present invention;

FIG. 13 is a schematic view showing the overall structure of a display screen in a tilt-up state according to an embodiment of the present invention;

FIG. 14 is a schematic view showing the overall structure of a display screen in a down state according to an embodiment of the present invention;

FIG. 15 is a schematic view of an assembly of an adjustment mechanism (rear housing and first dust-proof housing separated) with a display screen in a tilt-up position according to an embodiment of the present invention;

FIG. 16 is a second schematic view of an assembly of the adjustment mechanism (rear housing separated) with the display screen in a tilt-up position according to an embodiment of the present invention;

FIG. 17 is a schematic view of an assembly of the adjustment mechanism (with the rear housing and the first dust-proof housing hidden) with the display screen in a down state, according to an embodiment of the present invention;

FIG. 18 is a schematic rear view of the overall structure of a exercise center according to one embodiment of the present invention;

FIG. 19 is an exploded view (fully exploded) of a rotary mechanism according to one embodiment of the present invention;

FIG. 20 is an exploded view of a rotary mechanism according to an embodiment of the present invention (exploded rear housing, second dust-proof housing);

FIG. 21 is an exploded schematic view of a rotary mechanism according to an embodiment of the present invention, three (exploded rear housing);

FIG. 22 is a schematic view of a display screen before rotation according to an embodiment of the present invention;

FIG. 23 is a schematic diagram showing a structure of a display screen after rotation according to an embodiment of the present invention;

FIG. 24 is a schematic view showing the whole structure of a push button switch according to an embodiment of the present invention;

FIG. 25 is a schematic view in semi-section of a push button switch according to an embodiment of the present invention;

FIG. 26 is an exploded view of a push button switch according to one embodiment of the present invention;

FIG. 27 is an exploded view of a push button switch according to an embodiment of the present invention;

FIG. 28 is a schematic diagram showing the whole structure of a push button switch according to an embodiment of the present invention;

FIG. 29 is a schematic diagram of a dual-screen switching display device according to an embodiment of the present invention;

FIG. 30 is a schematic view of the bottom structure of a exercise center according to one embodiment of the present invention;

FIG. 31 is a schematic view showing a structure in which the first chest expander is mounted on the base according to an embodiment of the present invention;

FIG. 32 is an isometric view of a exercise center according to one embodiment of the present invention;

FIG. 33 is a schematic view showing a combined structure of a first chest expander according to an embodiment of the present invention;

FIG. 34 is an exploded view of a first chest expander according to an embodiment of the present invention;

FIG. 35 is an exploded view of a first torque-outputting mechanism according to one embodiment of the present invention;

FIG. 36 is an exploded view of a second chest expander according to an embodiment of the present invention;

FIG. 37 is an isometric view of a treadmill structure in a gathering and merging process according to an embodiment of the present invention;

FIG. 38 is an isometric view of a treadmill structure in a fully collapsed configuration, according to an embodiment of the present invention;

FIG. 39 is a schematic view showing the structure of a base according to an embodiment of the present invention;

FIG. 40 is a schematic view of a cross-flow fan and a negative ion generator according to an embodiment of the present invention assembled in a cavity;

FIG. 41 is a schematic view showing a structure of a cross flow fan and a negative ion generator before being assembled in a cavity according to an embodiment of the present invention;

FIG. 42 is a schematic diagram showing a structure of a cross flow fan, a negative ion generator according to an embodiment of the present invention;

FIG. 43 is an exploded view of a roller blind according to an embodiment of the invention;

FIG. 44 is a schematic view of a roller blind according to an embodiment of the present invention placed inside the upper cover of the frame;

FIG. 45 is a front view of a fitness center with a roller blind according to an embodiment of the present invention;

FIG. 46 is a front isometric view of a fitness center with a roller blind prior to lowering in accordance with an embodiment of the present invention;

FIG. 47 is a rear isometric view of a fitness center with a roller blind lowered in accordance with an embodiment of the present invention;

FIG. 48 is an isometric view of a deck structure in a collapsed configuration according to an embodiment of the invention;

FIG. 49 is a side view of a deck structure in a collapsed state according to an embodiment of the present invention;

FIG. 50 is an enlarged view at C in FIG. 49;

FIG. 51 is an isometric view of a treadmill structure in an expanded state, according to one embodiment of the present invention.

Description of the reference numerals:

Armrest 1, frame 2, mounting box 21, cross beam 22, vertical beam 23, cavity 24, side cover 25, air outlet 26, left bracket 27, right bracket 28, curtain outlet 29, driving device 3, armrest driving motor 31, gear set 32, output shaft 33, clasping device 4, fixed toothed plate 41, second shaft hole 411, first cavity 412, first connecting boss 413, gear ring 414, eccentric block seat 415, eccentric block 42, first eccentric block 421, first snap spring groove 4211, first blocking groove 4212, first eccentric hole 4213, second eccentric block 422, second snap spring groove 4221, second blocking groove 4222, second eccentric hole 4223 eccentric retainer ring 43, eccentric stopper 431, eccentric shaft seat 432, first shaft hole 433, relief groove 434, bushing 435, ring gear 44, internal tooth 441, third shaft hole 442, clip spring 45, clip spring foot 451, movable toothed plate 46, fourth shaft hole 461, second concave cavity 462, tooth socket 463, second connection boss 464, closed ring 47, rotation shaft 5, running belt 6, front roller 7, rear roller 8, running table 9, pulley 91, motor (brushless motor) 10, motor control board 11, brake resistor 12, gradient sensor 13, timing belt 14, pulley 15, running table lead screw 16, running table nut 17, running table convex shaft 18, belt pulley 15, and belt pulley,

Pitch mechanism 19, first rotating motor 191, first screw 192, first gear 193, second bearing 194, first bearing 195, rotating mechanism 20, second rotating motor 201, second screw 202, second gear 203, center hole 2031, main display 30, display mounting plate 301, front case 3011, front half cover 30111, rear half cover 30112, rear case 3012, first dust-proof case 3013, shaft hole 3014, protruding shaft 302, stopper 303, second dust-proof case 304,

Mounting base 50, upper boss 501, lower boss 502, PCB 51, upper contact switch 511, lower contact switch 512, hooking groove 513, through hole 514, swing assembly 52, swing base 521, screw hole 5211, escape groove 5212, rotation shaft 522, knob assembly 53, knob 531, hollow encoder 532, inner cavity 5321, pressing assembly 54, button cover 541, button support 542, hook 5421, pressure column 5422, elastic member 543, micro switch 544, button display 545, display control unit 546, and electronic control unit,

A first control unit 60, a button switch 61, a button display 62, a second control unit 63, a main board 64,

The first chest expander 70, the first torque output mechanism 701, the torque motor 7011, the scroll 7012, the turbine 7013, the output shaft 7014, the first hub 702, the first groove 7021, the outer circumferential surface 7022 of the first hub, the first coil spring 703, the first wire 704, the first handle 705, the housing 706, the upper housing 7061, the lower housing 7062, the wire outlet 7063, the second chest expander 71, the second torque output mechanism 711, the second wire 712, the second handle 713, the second hub 714, the second groove 7141, the outer circumferential surface 7142 of the second hub, the second coil spring 715, the base 72, the protruding portion 721, the first outlet 722, the second outlet 723, the receiving cavity 724, the opening 725, the body fat scale 74,

Cross flow fan 80, fan motor 801, impeller 802, negative ion generator 81, roller shutter 82, clip 821, reel 83, roller shutter driving motor 84, and,

Stop 90, inclined plane 901.

Detailed Description

The invention will be described in detail with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The invention relates to a body-building center, and fig. 1 is a schematic diagram of the whole structure of the body-building center, and referring to fig. 6, the body-building center comprises an armrest 1, a frame 2, a driving device 3, a clasping device 4, a first lifting mechanism, a rotating shaft 5, a running belt 6, a front roller 7, a rear roller 8, a running platform 9, a motor 10, a motor control board 11, a brake resistor 12, a gradient sensor 13, a main display screen 30, a pitching mechanism 19 and a rotating mechanism 20.

The two sides of the frame 2 are respectively and fixedly provided with the enclasping device 4, each enclasping device 4 is rotatably provided with one handrail 1, the driving device 3 is arranged on the handrail 1, the enclasping device 4 is provided with a first shaft hole 433 for connecting an output shaft 33 of the driving device 3, and the driving device 3 drives the handrail 1 to rotate relative to the frame 2 and then is enclasped and fixed through the enclasping device 4.

Preferably, two sides of the frame 2 are respectively provided with a mounting box 21, the tail ends of the mounting boxes 21 protrude out of the frame 2, and the tail ends of the mounting boxes 21 are used for fixing the enclasping device 4.

As shown in fig. 3-4, the holding device 4 includes a fixed toothed plate 41, an eccentric block 42, an eccentric retainer ring 43, an inner gear ring 44, a clamp spring 45, a movable toothed plate 46 and a closed ring 47, wherein the fixed toothed plate 41 is disc-shaped, a second shaft hole 411 is formed in the axial middle of the fixed toothed plate 41, a first cavity 412 is concavely formed in one side surface of the fixed toothed plate 41 in the thickness direction, the first cavity 412 is used for accommodating the eccentric block 42 and the inner gear ring 44, a group of first connecting bosses 413 used for being connected with the frame 2 are convexly formed in the other side surface of the fixed toothed plate 41 in the thickness direction, the number of the group of first connecting bosses 413 is six, But the number is not limited by the present embodiment; A gear ring 414 is formed on the inner circumferential wall of the first cavity 412, and an eccentric block seat 415 is protruded on a side of the second shaft hole 411 facing the first cavity 412. The eccentric block 42 includes a first eccentric block 421 and a second eccentric block 422, the first eccentric block 421 and the second eccentric block 422 have the same shape and are ring-shaped, a pair of first blocking grooves 4212 are formed on the outer ring of the first eccentric block 421, a first eccentric hole 4213 is formed in the middle of the first eccentric block 421, a first clamping spring groove 4211 is formed at one end of the first eccentric hole 4213, the shape of the first clamping spring groove 4211 is not limited in any way, the shape illustrated in this example is a dovetail groove, a pair of second blocking grooves 4222 are formed on the outer ring of the second eccentric block 422, the pair of second blocking grooves 4222 correspond to the positions of the pair of first blocking grooves 4212, A second eccentric hole 4223 corresponding to the first eccentric hole 4213 is arranged in the middle of the second eccentric block 422, a second snap spring groove 4221 is arranged at one end of the second eccentric hole 4223, the second snap spring groove 4221 is identical to the first snap spring groove 4211 in shape and is arranged in a staggered manner that the positions are partially overlapped and partially separated, the first eccentric block 421 and the second eccentric block 422 are respectively sleeved on the eccentric block seat 415 through the respective first eccentric hole 4213 and second eccentric hole 4223, when in installation, the first eccentric block 421 and the second eccentric block 422 of the eccentric block 42 are arranged in an overlapped manner, The pair of first blocking grooves 4212 on the first eccentric block 421 are aligned with the pair of second blocking grooves 4222 on the second eccentric block 422, the first eccentric hole 4213 is aligned with the second eccentric hole 4223, the first clamping spring groove 4211 and the second clamping spring groove 4221 are arranged in a staggered manner, the inner arc surfaces of the first eccentric block 421 and the second eccentric block 422 are matched with the outer arc surface of the eccentric block seat 415, and the outer arc surfaces of the first eccentric block 421 and the second eccentric block 422 are matched with the inner arc surface of the bushing 435 in the annular gear 44. The eccentric check ring 43 is circular, the first shaft hole 433 is formed in the axial middle of the eccentric check ring 43, the shape of the first shaft hole 433 is not limited, the first shaft hole 433 can be star-shaped, quincuncial or the like, a pair of eccentric check blocks 431 are convexly arranged on one side surface of the thickness direction of the eccentric check ring 43, an eccentric shaft seat 432 is convexly arranged on one side of the first shaft hole 433 facing the eccentric check block 431, the eccentric shaft seat 432 is arranged in the second shaft hole 411 of the fixed toothed plate 41, a pair of eccentric check blocks 431 are arranged in a pair of first check grooves 4212 and a pair of second check grooves 4222 of the first eccentric block 421 and the second eccentric block 422, A relief groove 434 for allowing a pair of clamp spring legs 451 of the clamp spring 45 to pass through is also formed in the outer circumferential edge of the eccentric retainer ring 43; the ring gear 44 is ring-shaped, a third shaft hole 442 is provided in the middle of the axial direction of the ring gear 44, a wear-resistant bushing 435 is fixed in the third shaft hole 442, the ring gear 44 is disposed in a cavity formed by the fixed toothed plate 41 and the movable toothed plate 46, the inner teeth 441 for meshing with the ring gear 414 are disposed on the radial outer circumferential wall of the ring gear 44, the number of teeth of the inner teeth 441 is smaller than the number of teeth of the ring gear 414 of the fixed toothed plate 41, the number of teeth of the inner teeth 441 provided in this embodiment is one less than the number of teeth of the ring gear 414, but the number is not limited specifically, the inner teeth 441 are meshed with the tooth grooves 463 of the ring gear 414 and the movable toothed plate 46 respectively, and the internal teeth 441 are fully engaged with only one tooth of the ring gear 414 during operation. The snap spring 45 is in a ring shape, the snap spring 45 is arranged in a cavity formed by the movable toothed plate 46 and the inner gear ring 44, a pair of snap spring legs 451 for hooking the first snap spring groove 4211 and the second snap spring groove 4221 are formed at the opening end of the snap spring 45, when the first eccentric block 421 and the second eccentric block 422 of the snap spring legs 451 are dislocated, a force which is outwards spread is provided for the first eccentric block 421 and the second eccentric block 422 to clamp the pair of eccentric check blocks 431, and a force is applied to the inner gear ring 44 by the first eccentric block 421 and the second eccentric block 422, so that the inner gear ring 44, the fixed toothed plate 41 and the movable toothed plate 46 have no gap when being meshed. The movable toothed plate 46 is disc-shaped, a fourth shaft hole 461 is formed in the axial middle of the movable toothed plate 46, a second concave cavity 462 is concavely formed on one side surface of the movable toothed plate 46 in the thickness direction, a group of second connection bosses 464 for connecting with the handrail 1 are convexly formed on the other side surface of the movable toothed plate 46 in the thickness direction, and the number of the group of second connection bosses 464 is six in the figure, but the number is not limited by the embodiment; a tooth socket 463 for meshing with the internal teeth 441 is provided on the inner circumferential wall of the second cavity 462; the closed ring 47 is enclosed around the outer edges of the fixed toothed plate 41 and the movable toothed plate 46, so that the fixed toothed plate 41 and the movable toothed plate 46 are fixed and cannot fall off during operation, and the enclasping device 4 cannot axially float and cannot jump in the radial direction during use.

When electric driving is adopted, the driving device 3 may be a combination of a motor and a speed reducing assembly or a transmission assembly, or the driving device 3 may be a motor capable of outputting high torque force, and when manual driving is required, the driving device 3 may be a rotary hand wheel.

Taking the driving device 3 shown in fig. 4 as a combination of a motor and a transmission assembly as an example, the driving device 3 is disposed inside the handrail 1, the driving device 3 includes a handrail driving motor 31, a gear set 32 and an output shaft 33, a motor shaft of the handrail driving motor 31 is connected with the gear set 32, the gear set 32 is provided with the output shaft 33, and the handrail driving motor 31 drives the output shaft 33 to rotate through the gear set 32.

The working principle of the enclasping device of the present invention is that the first connecting boss 413 is welded with the mounting box 21 on the frame 2, the second connecting boss 464 is welded with the armrest 1, the driving device 3 in the armrest 1 drives the output shaft 33 to rotate, drives the eccentric check ring 43 to rotate, and the eccentric check ring 43 cooperates with the first blocking groove 4212 and the second blocking groove 4222 on the first eccentric block 421 and the second eccentric block 422 of the eccentric block 42 through the pair of eccentric check blocks 431, so as to drive the first eccentric block 421 and the second eccentric block 422 of the eccentric block 42 to rotate, and the first eccentric hole 4213 and the second eccentric hole 4223 on the first eccentric block 421 and the second eccentric block 422 of the eccentric block 42 are eccentric with respect to the first eccentric block 421 and the second eccentric block 422, so that the eccentric movement of the ring 44 can be pushed, and the angle of the movable toothed plate 46 can be changed, thereby achieving the function of controlling and adjusting the angle of the armrest 1, so long as the output shaft 33 is ensured to be static, and the enclasping of the armrest 1 can be realized at any angle.

As shown in fig. 2, in order to ensure the synchronism between the handrails 1, a rotation shaft 5 is connected between the two handrails 1.

For ease of reference, fig. 8 and 10 are enlarged partial views of fig. 7 and 9, respectively.

The motor 10 described herein preferably selects a brushless motor 10.

The front end of running platform 9 sets up preceding cylinder 7, the rear end of running platform 9 sets up back cylinder 8, running belt 6 cover is established the outside of running platform 9 to running belt 6's both ends are the wrap-around respectively preceding cylinder 7 and back cylinder 8, brushless motor 10's output is connected preceding cylinder 7, brushless motor 10 accessible with set up drive mechanism between preceding cylinder 7 come laborsaving drive preceding cylinder 7 rotation, drive mechanism can adopt turbine scroll mechanism, also can adopt gear drive, the present case is not limited, this embodiment takes hold-in range drive mechanism as the example to describe, drive mechanism includes hold-in range 14 and band pulley 15, preceding cylinder 7 is equipped with the center pin, band pulley 15 with preceding cylinder 7's center pin is fixed, the both ends of hold-in range 14 are the output of brushless motor 10 with band pulley 15 respectively, during operation, preceding cylinder 7 is as the driving wheel, and back cylinder 8 is the driven driving wheel, and brushless motor 10 starts at first, drives band pulley 15 through hold-in range 14 and rotates, thereby running belt 6 just can run.

The brushless motor control board 11 is connected to the brushless motor 10, the brake resistor 12, and the gradient sensor 13, respectively.

The gradient sensor 13 automatically records gradient data of the running table 9 when the gradient is lifted, then sends the gradient data to the brushless motor control board 11, the brushless motor control board 11 controls the brushless motor 10 to adjust the resistance value of the brake resistor 12 according to the electric energy consumption required to be consumed by the brushless motor 10, the gradient of the running table 9 is not lifted, the constant speed is V, when the gradient is lifted, the brushless motor 10 is charged to the brake resistor 12 in a constant speed reverse direction, the resistance value of the brake resistor 12 is reduced, the rotating speed of the output end of the brushless motor 10 is reduced, the rotating speed of the front roller 7 is reduced, the speed of the running belt 6 is reduced, the speed at the moment is V & lt & gtis slower than the constant speed V, and the acceleration caused by stall is added, so that the speed of a user is kept consistent with the constant speed in practice, when the gradient is reduced, the resistance value of the brake resistor 12 is increased, the rotating speed of the output end of the brushless motor 10 is increased, the rotating speed of the front roller 7 is increased, the running belt 6 is accelerated, and the speed at the moment is V, and the speed returns to the constant speed when the speed is not lifted, and the running belt 6 can keep constant speed at the height gradient.

The lifting mechanism of the body-building center can be various, and the invention adopts a first lifting mechanism which can be used for folding and lifting, the first lifting mechanism is arranged on the frame, the front part of the running table 9 is connected with the first lifting mechanism, and the first lifting mechanism drives the front part of the running table 9 to lift so as to realize the lifting of the gradient of the running table 9. The first lifting mechanism comprises two running table lead screws 16, a first gear motor and running table nuts 17 matched with the running table lead screws 16, the structure schematic diagram of the first lifting mechanism on the single-side lead screws is shown in fig. 11, the running table lead screws 16 are respectively and vertically installed on two sides of the frame 2, the two running table lead screws 16 are connected with the first gear motor, two sides of the front part of the running table 9 are provided with running table convex shafts 18, the running table nuts 17 are provided with first grooves for placing the running table convex shafts 18, the running table nuts 17 are matched with the running table lead screws 16, and the front part of the running table 9 is driven to do lifting motion along the running table lead screws 16. The gradient sensor 13 may be configured on the first gear motor of the lifting mechanism to monitor the lifting condition of the running platform driven by the lifting mechanism in real time, i.e. the gradient.

Because the running platform 9 can slightly brake and slow down when the gradient is increased, and the handrail 1 can be held tightly at any angle, when the running platform 9 is used by a body-building user, the gradient of the running platform 9 can be increased to form a mountain slope, and then the handrail 1 is rotated to form a upturned angle to form a mountain climbing stick, so that the body-building user can grasp the rotationally held mountain climbing stick and step on the mountain slope just like a similar climbing movement mode, the running platform is more innovative than the general running mode, and the requirement that the user cannot go out to climb the mountain is met.

As shown in fig. 15 to 17, the pitching mechanism 19 includes a first rotating motor 191, a first screw 192, and a first gear 193, and as shown in fig. 13, 14 and 18, the armrests 1 are respectively disposed on two sides of the frame 2, the rotating shaft 5 is rotatably connected between the two armrests 1, and the main display 30 is mounted on the rotating shaft 5; the rotating shaft 5 is provided with a first bearing 195 at the rotating joint of the handrail 1, the main display screen 30 is installed on the rotating shaft 5, the rotating shaft 5 is sleeved and fixed with a first gear 193, the sleeved and connected part is provided with a second bearing 194, the first gear 193 can be sleeved and arranged behind the rotating shaft 5 and connected with the rotating shaft 5 through a key, the first screw 192 is provided with external threads and is in threaded fit with the first gear 193, and the first rotating motor 191 is connected with and drives the first screw 192 to rotate.

The main display screen 30 is detachably fixed on the rotating shaft 5, and the detachable structure can be various, and the embodiment adopts a simpler structure, and the specific structure is as follows, a display screen mounting plate 301 is arranged between the main display screen 30 and the rotating shaft 5, the main display screen 30 is mounted on the display screen mounting plate 301, and the display screen mounting plate 301 is detachably fixed on the rotating shaft 5; the display screen mounting board 301 includes a front casing 3011 and a rear casing 3012, the main display screen 30 is mounted on the front casing 3011, and the front casing 3011 and the rear casing 3012 are covered together to form a cavity for accommodating the first rotating motor 191, the first screw 192, the first gear 193 and the rotating shaft 5. The adjusting mechanism 1 can be designed in the display screen mounting plate 301, the pitching angle of the main display screen 30 is controlled by controlling the display screen mounting plate 301, and the rotating shaft 5 penetrates out from two sides of the display screen mounting plate 301 and is rotationally connected to the handrail 1.

The front casing 3011 is integrally formed with a front half cover 30111 at the front half part of the rotating shaft 5, and is formed with a rear half cover 30112 which is mutually buckled with the front half cover 30111 in a split manner, the front half cover 30111 is provided with a semicircular groove for accommodating the front half part of the rotating shaft 5, and the rear half cover 30112 is provided with the same semicircular groove for accommodating the rear half part of the rotating shaft 5; the front shell 3011 is provided with a screw, the front half cover 30111 is provided with a threaded hole, the rear half cover 30112 is provided with a through hole at a position corresponding to the threaded hole, the screw passes through the through hole and then is tightly matched and connected with the threaded hole, so that the rear half cover 30112 is fixed on the front half cover 30111, when the main display screen 30 needs to be disassembled, the rear shell 3012 is firstly opened, the screw is then loosened, the rear half cover 30112 is removed, and finally the main display screen 30 and the display screen mounting plate 301 are removed from the rotating shaft 5, so that the method is very convenient. The first dust-proof casing 3013 is further disposed outside the first gear 193 and the first screw 192, so as to prevent dust from entering the threaded engagement between the first gear 193 and the first screw 192.

In order to increase the stability of the structure, the number of the front half covers 30111 and the rear half covers 30112 is two, the front half covers 30111 and the rear half covers 30112 are respectively positioned at two sides of the back surface of the front shell 3011, and the first gear 193 is positioned on the rotating shaft 5 between the two front half covers 30111.

As shown in fig. 15 and 16, in the working process of tilting up the main display 30 according to the present invention, the first rotating motor 191 rotates forward to drive the first screw 192 to rotate forward, and the first screw 192 drives the first gear 193 to rotate upward through the screw structure, so that the first gear 193 drives the display mounting plate 301 and the main display 30 fixed on the same rotating shaft 5 to tilt up, whereas in the working process of tilting up the main display 30 according to the present invention, as shown in fig. 17, the first rotating motor 191 rotates reversely to drive the first screw 192 to rotate reversely, and the first screw 192 drives the first gear 193 to rotate downward through the screw structure, so that the first gear 193 drives the display mounting plate 301 and the main display 30 fixed on the same rotating shaft 5 to tilt down, thereby realizing adjustment of the tilting angle of the main display 30.

As shown in fig. 18 to 21, the rotation mechanism 20 includes a second rotation motor 201, a second screw 202, and a second gear 203, and the display screen mounting plate 301 forms a cavity in which the second rotation motor 201, the second screw 202, and the second gear 203 are accommodated, and the second rotation motor 201 is fixed to the front case 3011.

The second rotating motor 201 is connected to and drives the second screw 202 to rotate, external threads are arranged on the second screw 202 and are in threaded fit with the second gear 203, a shaft hole 3014 is formed in a front shell of the display screen mounting plate 301, a protruding shaft 302 is arranged at the back of the main display screen 30, and when the display screen is mounted, the protruding shaft 302 penetrates through the shaft hole 3014 and then is fixedly penetrated through a central hole 2031 of the second gear 203. The male shaft 302 is keyed into a central bore 2031 of the second gear 203. Then, a limiting piece 303 is provided on the outer end surface of the protruding shaft 302, the limiting piece 303 is locked on the outer end surface of the protruding shaft 302 through a screw (not shown in the figure), and the limiting piece 303 limits the axial movement of the second gear 203. Finally, a second dust-proof housing 304 is provided outside the second gear 203 and the second screw 202 to prevent dust from entering the threaded engagement of the second gear 203 and the second screw 202.

Referring to fig. 22, which shows a schematic diagram of the main display 30 of the present invention that is not yet rotated in a normal state, when the main display 30 of the present invention needs to be rotated, a second rotating motor 201 is started to drive the second screw 202 to rotate, and the second screw 202 drives the second gear 203 to rotate through a threaded structure, so that the second gear 203 drives the main display 30 to rotate through a protruding shaft 302, and as shown in fig. 23, the main display 30 is electrically controlled to rotate; of course, fig. 17 is only a schematic view of the state of the main display 30 after being rotated 90 degrees, and the rotation angle of the present invention may be arbitrary, so that various angle states of the main display 30 can be achieved.

In addition, because the handrail 1 can rotate relative to the frame, the invention also has the function of adjusting the up-and-down movement of the main display screen 30, and the handrail 1 drives the rotating shaft 5 and the main display screen 30 on the rotating shaft 5 to move up and down, thereby realizing the height change and further facilitating the user to define the position of the main display screen.

The exercise center further comprises a button switch, as shown in fig. 24 to 28, which comprises a mounting seat 50, a PCB board 51, a swinging assembly 52, a knob assembly 53 and a pressing assembly 54;

The PCB 51 is located above the mounting seat 50, the knob assembly 53 is mounted on the PCB 51, and the knob assembly 53 is of an annular hollow structure for the pressing assembly 54 to be mounted in;

The swinging assembly 52 includes a swinging seat 521 and a rotating shaft 522, the swinging seat 521 is fixed at the bottom of the PCB board 51, a screw hole 5211 is formed in the outer periphery of the swinging seat 521, and the PCB board 51 is provided with a through hole 514 at a position corresponding to the screw hole 5211 for a screw (not shown in the figure) to pass through and be matched with the screw hole 5211. The center of the bottom of the swinging seat 521 is provided with the rotating shaft 522, two ends of the rotating shaft 522 are rotatably connected to the mounting seat 50, an upper contact switch 511 and a lower contact switch 512 are respectively arranged at two sides of the rotating shaft 522 at the bottom of the PCB 51, the swinging seat 521 is provided with a yielding groove 5212 at a position corresponding to the upper contact switch 511 and the lower contact switch 512, the mounting seat 50 is provided with an upper convex column 501 and a lower convex column 502, and the upper convex column 501 and the lower convex column 502 are respectively positioned below the upper contact switch 511 and the lower contact switch 512.

The push button switch is installed on a body-building center, for example, a main display screen 30 of the body-building center, by using a mounting base 50, and a rotation shaft 522 provides a middle rotation support for a swing base 521, so the swing base 521 can swing up and down around the rotation shaft 522, and since an upper boss 501 and a lower boss 502 are provided below an upper contact switch 511 and a lower contact switch 512, when the swing base 521 swings up, the upper boss 501 touches the upper contact switch 511 to trigger a corresponding function through a PCB board 51, and when the swing base 521 swings down, the lower boss 502 touches the lower contact switch 512 to trigger a corresponding function through the PCB board 51.

As shown in fig. 1, in one embodiment, the exercise center includes a running platform 9, a main display screen 30, and a frame 2, where the running platform 9 and the main display screen 30 are both mounted on the frame 2, a main board (not shown) electrically connected to the running platform 9 is provided on the main display screen 30, and the push button switch is mounted on the main display screen 30 and connected to the main board. The upper boss 501 touches the upper contact switch 511 to be connected to the main board through the PCB board 51 to control the gradient of the running block 9 to be raised, and the lower boss 502 touches the lower contact switch 512 to be connected to the main board through the PCB board 51 to control the gradient of the running block 9 to be lowered.

The knob assembly 53 may be used to control the speed of the running table 9 in the exercise center, the pressing assembly 54 may be used to control the running table 9 in the exercise center to be opened and stopped, the knob assembly 53 and the pressing assembly 54 may have various structures, in this embodiment, only a relatively simple one is adopted, specifically, the knob assembly 53 includes a circular knob 531 and a hollow encoder 532, the hollow encoder 532 is fixed on the PCB 51, an outer side wall of the hollow encoder 532 has an outer ring that can rotate around a central axis of the hollow encoder 532, the knob is fixedly connected with the outer ring, and when the knob rotates, the outer ring of the hollow encoder 532 is driven to rotate; the hollow encoder 532 has a hollow interior 5321 into which the pressing assembly 54 is inserted.

The pressing assembly 54 includes a button cover 541, a button support 542, an elastic member 543 (specifically, a spring) and a micro switch 544, the button cover 541 covers the upper portion of the button support 542, the button support 542 is placed in the hollow encoder 532, the elastic member 543 is disposed between the button support 542 and the PCB 51, a hook 5421 axially penetrating the inner cavity 5321 is disposed at the bottom of the button support 542 along the inner wall of the hollow encoder 532, the PCB 51 is provided with a hook slot 513, and the hook 5421 penetrates the hook slot 513 and hooks the back of the hook slot 513; the micro switch 544 is installed on the PCB 51, the micro switch 544 is located at the bottom of the inner cavity 5321 of the hollow encoder 532, a pressing column 5422 corresponding to the upper portion of the micro switch 544 is provided in the middle of the bottom of the button support 542, when the button cover 541 is pressed, the button support 542 moves down, the pressing column 5422 of the button support 542 triggers the micro switch 544 to complete the opening or stopping of the running table 9, the elastic member 543 compresses, at this time, the hook 5421 is far away from the hook slot 513, when the button cover 541 is released and pressed, the elastic member 543 resets to drive the button cover 541 and the button support 542 to reset, and the hook 5421 hooks the back of the hook slot 513 again.

The button switch further has the function of displaying data like the main display screen 30, the button cover 541 is made of transparent material, a display screen cavity is formed between the button cover 541 and the button support 542, and is used for installing a button display screen 545 and a display screen control unit 546, the display screen control unit 546 is installed on the button support 542 and electrically connected with the PCB board 51, the button display screen 545 is installed above the display screen control unit 546, the button cover 541 is made of transparent material, the button display screen 545 can display data information of the exercise center, and the data information includes images, numbers, characters and the like.

The exercise center further includes a dual-screen switching display device, as shown in fig. 29, which includes a main display screen 30, a first control unit 60, a push button switch 61, a push button display screen 62, a second control unit 63, and a main board 64.

As shown in fig. 1, the main display 30 is installed on the exercise center, and the first control unit 60 is installed on the main display 30 and can be connected with the main display 30 to generate command signals;

the push button switch 61 is mounted on the main display 30;

The button display screen 62 is mounted on the button switch 61, and the second control unit 63 is mounted on the button switch 61 and can be connected with the button switch 61 to generate instruction signals;

The first control unit 60 and the second control unit 63 are connected to the main board 64, and the main board 64 can receive the switching display screen request signals sent by the first control unit 60 and the second control unit 63, and send the switching approval display screen signals or the switching rejection display screen signals to the first control unit 60 and the second control unit 63, respectively.

The main display 30 is of a touch type, which is more convenient for a user to use, and the user can touch the main display 30 and connect the main board 64 through the first control unit 60, so that the main board 64 corresponds to different motion adjustments on the exercise center, such as gradient adjustment, speed adjustment, start and stop; the button display 62 is similar to the main display, but the button display 62 is not limited to a touch type, and the main board 64 is controlled by the second control unit 63; the push button switch 61 may also be designed as a mechanical type, and the type of the push button switch 61 includes, but is not limited to, a mechanical type, and the mechanical push button switch 61 may drive the second control unit 63 to respectively correspond to different motion adjustments on the exercise center through physical operations such as rotation, swing, pressing, etc.

The working process of the invention is as follows:

The user can select one or both of the main display 30 and the button display 62; when the user wants to display on the main display 30 and does not display on the button display 62, the first control unit 60 of the main display 30 sends a display switching request signal to the main board 64, and after the main board 64 receives the display switching request signal sent by the first control unit 60, the main board 64 sends a display switching approval signal to the first control unit 60 and sends a display switching rejection signal to the second control unit 63, so that the purposes of displaying on the main display 30 and not displaying on the button display 62 are achieved;

When the user wants to display on the button display 62 and not on the main display 30, the second control unit 63 of the button switch 61 sends a display switching request signal to the main board 64, and after the main board 64 receives the display switching request signal sent by the second control unit 63, the main board 64 sends a consent display switching signal to the second control unit 63 and sends a rejection display switching signal to the first control unit 60, so that the purpose that the button display 62 is displayed and the main display 30 is not displayed is achieved;

When the user wants to synchronously display on the button display 62 and the main display 30, the first control unit 60 of the main display 30 and the second control unit 63 of the button switch 61 both send a display switching request signal to the main board 64, and after the main board 64 receives the display switching request signals sent by the first control unit 60 and the second control unit 63, the main board 64 sends a consent switching display signal to the first control unit 60 and the second control unit 63, respectively, so that the purpose of synchronously displaying on the button display 62 and the main display 30 is achieved.

The exercise center further comprises a base 72, a first chest expander 70 and a second chest expander 71, the running platform 9 is connected to the frame 2, the base 72 is disposed at the bottom of the frame 2, the width of the base 72 is larger than the width of the running platform 9, so that the base 72 protrudes towards two sides of the running platform 9, at least more than one first chest expander 70 is disposed at protruding portions 721, in one embodiment, the number of the first chest expanders 70 is two, the protruding portions 721 of the base 72 on two sides of the running platform 9 are respectively provided with the first chest expander 70, and thus the protruding portions 721 on two sides of the running platform 9 can both use the first chest expander 70; the first chest expander 70 comprises a first torque output mechanism 701, a first pull wire 704 and a first handle 705, wherein the first torque output mechanism 701 is arranged in the base 72, the base 72 is provided with a first outlet 722, one end of the first pull wire 704 is connected with the first torque output mechanism 701, and the other end of the first pull wire 704 penetrates out of the first outlet 722 and is connected with the first handle 705.

In a preferred embodiment, two sides of the frame 2 are rotatably provided with one handrail 1, the second chest-developer 71 is installed on the handrail 1, the number of the second chest-developer 71 is at least one, in this embodiment, the number of the second chest-developer 71 is two, and two handrails 1 are respectively provided with one second chest-developer 71; the second chest expander 71 comprises a second torque output mechanism 711, a second pull wire 712 and a second handle 713, wherein the second torque output mechanism 711 is arranged in the handrail 1, a second outlet 723 is formed in the bottom surface of the handrail 1, one end of the second pull wire 712 is connected with the second torque output mechanism 711, and the other end of the second pull wire 712 penetrates out of the second outlet 723 and is connected with the second handle 713.

The first chest expander 70 is arranged on the base, and the free space of the base is fully utilized, so that a user can pull the first chest expander 70 from bottom to top to perform tension exercise, the second chest expander 71 is arranged on the handrail 1, the handrail 1 also has rotating work, when the handrail 1 rotates to a vertical state, the second chest expander 71 can face the user, and the front of the user can conveniently perform tension exercise, and therefore, the two chest expanders at different positions can meet the requirements of the user on different actions and different directions; on the other hand, the torque output mechanisms of the first chest expander 70 and the second chest expander 71 can each be designed in an electrically controlled form or a non-electrically controlled form, or the first torque output mechanism 701 is in an electrically controlled form, the second torque output mechanism 711 is in a non-electrically controlled form, or the first torque output mechanism 701 is in a non-electrically controlled form, and the second torque output mechanism 711 is in an electrically controlled form. For convenience of production, the second chest expander 71 and the first chest expander 70 may be designed to have the same structure. Of course, to avoid electrical stress, the preferred embodiment provides a parallel arrangement of the first torque-outputting mechanism 701 in an electronically controlled form and the second torque-outputting mechanism 711 in a non-electronically controlled form, the specific structure of which is described below:

the first torque-transmitting mechanism 701 is in the form of an electrical control. The first chest expander 70 further comprises a first hub 702, a first coil spring 703 and a casing 706, one end of the first pull wire 704 is wound on the outer circumferential surface 7022 of the first hub, the other end of the first pull wire 704 is connected with the first handle 705, a first groove 7021 is formed in the wheel surface of the first hub 702 for the first coil spring 703 to be placed, an output shaft 7014 of the first torque output mechanism 701 penetrates through a central hole of the first hub 702 and is fixedly connected with the inner end of the first coil spring 703, and the outer end of the first coil spring 703 is fixed on the inner circumferential surface of the first groove 7021.

The first torque output mechanism 701 is a combination of a motor and a speed reduction assembly or a transmission assembly, or the first torque output mechanism 701 is a motor capable of outputting high torque.

As shown in fig. 35, in a preferred embodiment, the first torque output mechanism 701 is a combination of a motor and a transmission assembly, specifically, the first torque output mechanism 701 includes a torque motor 7011, a turbine 7013, a scroll 7012 transmission mechanism, and an output shaft 7014, the torque motor 7011 is connected to a scroll 7012 of the turbine 7013, the scroll 7012 is matched to an edge of a turbine 7013 of the turbine 7013 scroll 7012 transmission mechanism, and a center of the turbine 7013 is fixedly connected to the output shaft 7014. When the first torque output mechanism 701 works, the torque motor 7011 drives the scroll 7012 to rotate, so as to drive the output shaft 70 on the turbine 7013.

As shown in fig. 34 and 35, the housing 706 is composed of an upper housing 7061 and a lower housing 7062, where the upper housing 7061 and the lower housing 7062 are covered and fixed together to form an inner cavity, the inner cavity is used for placing the first torque output mechanism 701, the first hub 702, the first coil spring 703 and the first pull wire 704, the inner cavity structure can be designed according to the size adaptability of the first torque output mechanism 701, the first hub 702, the first coil spring 703 and the first pull wire 704, and the housing 706 is provided with a wire outlet 7063 for the first pull wire 704 to stretch out and connect with the first handle 705.

The first chest expander 70 is used for exercising, wherein a user pulls the first handle 705 outwards, the first pull wire 704 stretches and drives the first hub 702 to rotate, the first hub 702 tightens the first coil spring 703 in the first hub 702, the first coil spring 703 gradually tightens up until the first coil spring 703 tightens up to the limit, at this time, the first coil spring 703 plays a role of connecting the first pull wire 704 with the output shaft 7014, and then the output shaft 7014 starts to rotate, and directly provides resistance to the first pull wire 704, so that the user can continuously receive resistance in the using process and continuously stimulate muscles. When the first pull handle 705 is released, the first pull wire 704 is released, the output shaft 7014 stops rotating, the first pull wire 704 is rapidly released due to the torsion of the first coil spring 703, and returns to the released state to wait for the next pulling of the first pull handle 705.

As can be seen from the above exercise process, the torsion of the first coil spring 703 is completely provided by the output shaft 7014, and in the later stage of the tension exercise, the coil spring is rebounded and loosened, and the pull wire is pulled back, so that the motor does not need to be in a stop state, the pull wire is not required to be pulled back by the motor, the motor loss is reduced, and the first chest expander 70 can control the torsion of the torsion motor 7011 to control the torsion of the output shaft 7014, so that the invention also has a torsion adjusting function, and the user can change according to the actual use requirement, so that the exercise experience of the user is richer.

The second torque-transmitting mechanism 711 is in a non-electrically controlled form. As shown in fig. 36, the second chest expander 71 further includes a second hub 714, the second torque output mechanism 711 is two second coil springs 715, the second hub 714 is rotatably disposed inside the handrail 1, one end of the second wire 712 is wound around an outer circumferential surface 7142 of the second hub, the other end of the second wire 712 is connected to the second handle 713, two side wheel surfaces of the second hub 714 are respectively provided with a second groove 7141, two side second grooves 7141 are respectively provided with a second coil spring 715, inner ends of the second coil springs 715 are fixedly connected to the center of the second grooves 7141, and outer ends of the second coil springs 715 are fixed on the inner circumferential surface of the second grooves 7141.

The second chest expander 71 is used for exercising, wherein a user pulls the second handle 713 outwards, the second pull wire 712 stretches and drives the second hub 714 to rotate, the second hub 714 stretches the second coil springs 715 in the second hub 714, the second coil springs 715 are gradually tightened, and the torsion of the second chest expander 71 is provided by the two second coil springs 715, different from the torsion source of the first chest expander 70, the two second coil springs 715 directly provide torsion for the second pull wire 712, so that the user can continuously receive resistance and continuously stimulate muscles in the using process. When the second handle 713 is released, the second pull wire 712 is released, and the second pull wire 712 is rapidly released by the torsion force of the second coil spring 715, returns to the released state, and waits for the next pulling of the second handle 713.

As shown in fig. 1, 37 and 38, the first lifting mechanism is mounted on the frame 2, the front portion of the running platform 9 is connected with the first lifting mechanism, the first lifting mechanism drives the front portion of the running platform 9 to lift, when the front portion of the running platform 9 lifts up, the gradient is increased, the rear portion of the running platform 9 is driven to move towards the frame 2, the whole running platform 9 is folded and combined relative to the frame 2, when the front portion of the running platform 9 descends, the gradient is reduced, the rear portion of the running platform 9 is driven to be far away from the frame 2, and the whole running platform 9 is unfolded downward relative to the frame 2. The above is one embodiment of the lifting structure of the running platform, and in fact, the running platform can be folded by lifting the tail and closing the frame.

The base 72 is arranged at the bottom of the frame 2, the upper surface of the base 72 is concave downwards to form a containing cavity 724, the running table 9 is movably arranged above the containing cavity 724, the running table 9 is connected to the frame 2, and the running table 9 can be movably folded and unfolded relative to the frame 2;

When the running platform 9 is unfolded and lowered relative to the frame 2, the running platform 9 covers the accommodating cavity 724, and when the running platform 9 is folded and combined relative to the frame 2, the accommodating cavity 724 is exposed.

The storage cavity 724 can be used for placing articles, such as a body fat scale 74 or a body weight scale, when the storage cavity 724 is exposed, a user can take out the body fat scale 74 for use, after the use is finished, the body fat scale 74 is put back into the storage cavity 724, and finally the running table 9 is put down and unfolded relative to the frame 2 to cover the storage cavity 724, so that the body fat scale 74 in the storage cavity 724 is hidden.

As shown in fig. 39, in order to facilitate taking and placing the body fat scale 74, an opening 725 with a finger size is provided at the edge of the cavity mouth of the receiving cavity 724, so that the finger can extend into the opening 725 and tilt the body fat scale 74.

As shown in fig. 40 and 41, the exercise center further includes a cross flow fan 80 and a negative ion generator 81, the frame 2 is shaped like a gate, the top of the frame 2 is a cross beam 22, two sides of the cross beam 22 respectively extend downwards to form a vertical beam 23, a cavity 24 is formed in the housing of the cross beam 22, the cross flow fan 80 is disposed in the cavity 24 along the length direction of the cross beam 22, an air outlet 26 is formed in the housing of the cross beam 22 corresponding to the cross flow fan 80, the air outlet 26 faces the running table 9, and the negative ion generator 81 is disposed in the cavity 24 and located at the other side of the cross flow fan 80 opposite to the air outlet 26, i.e., the negative ion generator 81 is located at the back of the cross flow fan 80.

The cross flow fan 80 is widely used in home appliances such as air conditioner, dryer, electric hair dryer, etc., and has a simple structure, a small volume, a high dynamic pressure coefficient, a high efficiency compared with other low speed ventilators, a narrow and long outlet cross section, and is suitable for being installed in various flat devices for cooling or ventilation, so that it is very suitable for being installed on the cross beam 22 of the exercise center, the axial length of the cross flow fan can be arbitrarily selected according to the size of the cavity 24, and finally, the cross flow fan can transversely output air within a certain length range, and has a wide coverage range, so that a user can feel cool wind for cooling while running on the running table 9. The structure of the cross flow fan 80 generally comprises a fan motor 801 and an impeller 802, the impeller 802 is in a long cylindrical shape, a central shaft of the impeller 802 is connected with a motor shaft of the fan motor 801, when the cross flow fan 80 is used, the fan motor 801 can be started by a central control board to drive the impeller 802 to rotate, a left bracket 27 and a right bracket 28 are arranged in the cavity 24, the left bracket 27 is used for fixing the impeller 802, and the right bracket 28 is used for fixing the fan motor 801 so as to fix the cross flow fan 80 in the cavity 24, and the structural stability of the cross flow fan 80 in the cavity 24 is increased. As shown in fig. 41, the housing of the cross beam 22 includes a side cover 25, and one side of the cavity 24 is covered by the side cover 25, and the side cover 25 is detached to facilitate the assembly, disassembly and maintenance of the cross flow fan 80 inside the cavity 24.

The running platform 9 can be movably folded and unfolded relative to the frame 2. Fig. 1, 40 and 41 are schematic views of the running block 9 of the present invention in an expanded state. The first lifting mechanism can increase or decrease the gradient of the running platform, and adjust the height of a user to adapt to the optimal position blown by the fan.

The body-building center is also a rolling curtain for shielding the running table of the body-building center, as shown in fig. 2, 43 and 44, and comprises a rolling curtain 82, a scroll 83 along the length direction of the cross beam 21 is arranged in the cavity 23 of the frame, a curtain outlet 29 is formed in the cavity 23 at the lower position of the scroll 83, the top end of the rolling curtain 82 is wound on the scroll 83, and the bottom end of the rolling curtain 82 extends out of the curtain outlet 29.

The running platform 9 can be movably folded and unfolded relative to the frame 2.

As shown in fig. 45, a schematic front view of the running platform 9 of the present invention in an unfolded state and a schematic front view and a schematic rear view of the rolling screen 82 in an unfolded state and a shielding running platform 9 in a rolled screen 82 is shown in fig. 46 and 47 respectively, for the running platform 9, in either a folded state or an unfolded state, a user can pull the rolling screen 82 to lower the rolling screen 82 to the bottom of the frame 2, so as to achieve the purpose of shielding the running platform 9, and when the rolling screen is not used, the rolling screen 82 is retracted into the cavity 23 from the curtain outlet 29, so that the use is convenient.

The winding and unwinding of the roller shutter 82 can be designed to be manual or electric, and when the winding and unwinding device is designed to be electric, only one end of the roller shutter 83 is connected with a roller shutter driving motor 84, and the winding and unwinding of the roller shutter 83 is controlled by the forward and backward rotation of the roller shutter driving motor 84.

Since the cavity 23 is covered by the side cover 24, the side cover 24 is detached to facilitate the disassembly and maintenance of the components such as the roller shutter 82, the reel 83, the roller shutter driving motor 84, etc. inside the cavity 23.

In order to prevent the bottom end of the roller shutter 82 from being completely retracted into the shutter opening 29 and not being easily pulled manually, the bottom end of the roller shutter 82 is provided with a clamping bar 821, and the width of the clamping bar 821 is larger than the caliber of the shutter opening 29, so that the clamping bar 821 can be clamped in the shutter opening 29 when retracted.

The body-building center further comprises a limit structure for the folding and unfolding of the running platform, the first lifting mechanism drives the front part of the running platform 9 to lift, when the front part of the running platform 9 is lifted, the gradient is improved, the rear part of the running platform 9 is driven to move towards the frame 2, the whole running platform 9 is folded and combined relative to the frame 2, the bottom of the frame 2 is provided with a base 72, the upper surface of the base 72 is convexly provided with a stop block 90, and the stop block 90 can be composed of a plurality of convex blocks positioned on the same straight line, or can be in a strip shape as the whole shown in the embodiment, and the body-building center is not limited; the stopper 90 is located at the front side of the center line of the running block 9, and when the running block 9 is lifted up to the limit and is parallel to the frame 2, as shown in fig. 48 and 49, the lower portion of the running block 9 abuts against the stopper 90, and the running block 9 is in a folded state. In an enlarged view of the structure of the lower portion of the running platform abutting against the stop block 90, as shown in fig. 50, in an embodiment, a surface of the stop block 90 abutting against the lower portion of the running platform 9 is an inclined surface 901, and the inclined surface 901 is designed to enable the lower portion of the running platform 9 to be lowered along the inclined surface 901 in a proper direction when the running platform 9 is lowered, so as to assist in lowering the running platform 9. As shown in fig. 51, the running block 9 is shown in a fully lowered and unfolded state, and in order to further improve the smoothness of the lowering, the lower portion of the running block 9 is provided with a pulley 91, so that the pulley 91 can more smoothly slide down along the inclined plane 901 with the running block 9, when the running block 9 is lifted up to the limit and is parallel to the frame 2, the pulley 91 abuts against the inclined plane 901 of the stop block 90, and the inclined plane 901 abuts against the lower portion of the running block 9 of the pulley 91 to move forward.

The above embodiments are only preferred embodiments of the present invention, and are not limited to the present invention, and all equivalent changes made according to the design key of the present invention fall within the protection scope of the present invention.

Claims

1. A fitness center, characterized in that: the device comprises a main display screen, armrests, a frame, a rotating shaft, a running belt, a front roller, a rear roller, a running table, a motor control board, a brake resistor, a gradient sensor, a driving device, a holding device, a first lifting mechanism, a pitching mechanism and a rotating mechanism;

The front end of the running platform is provided with the front roller, the rear end of the running platform is provided with the rear roller, the running belt is sleeved outside the running platform, the two ends of the running belt are respectively connected with the front roller and the rear roller in a winding manner, the output end of the motor is connected with the front roller, the motor control board is respectively connected with the motor, the brake resistor and the gradient sensor, the gradient sensor can automatically record gradient data when the gradient of the running platform is lifted, then the gradient data are sent to the motor control board, the resistance value of the brake resistor is adjusted according to the electric energy consumption required by the motor, when the gradient of the running platform is not lifted, the constant speed is assumed to be V, when the gradient is lifted, the motor is charged reversely, the resistance value of the brake resistor is reduced, the rotation speed of the output end of the motor is reduced, the rotation speed of the front roller is reduced, the speed of the running belt is reduced, and the speed at the moment is V-, the speed is slower than the constant speed V, but the acceleration brought by stall is added, so that the speed of a user is kept consistent with the constant speed, when the gradient is lowered, the resistance value of the brake resistor is increased, the resistance value is increased, the output of the motor is increased, and when the rotation speed of the motor is not raised, and the rotation speed of the running belt is kept constant, and the running speed is kept at the constant speed, and the speed is not raised;

the two armrests are rotatably connected with the rotating shaft, and the main display screen is arranged on the rotating shaft; the pitching mechanism comprises a first rotating motor, a first screw rod and a first gear, wherein the first gear is sleeved and fixed on the rotating shaft, an external thread is arranged on the first screw rod and is in threaded fit with the first gear, the first rotating motor is connected with and drives the first screw rod to rotate, a display screen mounting plate is arranged between the main display screen and the rotating shaft, the main display screen is mounted on the display screen mounting plate, and the display screen mounting plate is detachably fixed on the rotating shaft; the display screen mounting plate comprises a front shell and a rear shell, the main display screen is mounted on the front shell, and the front shell and the rear shell are combined together to form a cavity for accommodating the first rotating motor, the first screw rod, the first gear and the rotating shaft; the rotating mechanism comprises a second rotating motor, a second screw rod and a second gear, wherein the second rotating motor, the second screw rod and the second gear are arranged on the frame, the display screen mounting plate forms a cavity and is also used for accommodating the second rotating motor, the second screw rod and the second gear, the second rotating motor is fixed on the front shell, the second rotating motor is connected with and drives the second screw rod to rotate, external threads are arranged on the second screw rod and are in threaded fit with the second gear, a protruding shaft is arranged at the back of the main display screen, and the protruding shaft is fixed in a central hole of the second gear in a penetrating manner.

2. A fitness center as claimed in claim 1, wherein: the enclasping device comprises a fixed toothed plate, an eccentric block, an eccentric retainer ring, an inner gear ring, a clamp spring, a movable toothed plate and a closed ring, wherein the fixed toothed plate is disc-shaped, a second shaft hole is formed in the middle of the axial direction of the fixed toothed plate, a first concave cavity is inwards concavely formed in one side surface of the fixed toothed plate in the thickness direction, a group of first connecting bosses used for being connected with the frame are outwards convexly arranged in the other side surface of the fixed toothed plate in the thickness direction, a gear ring is formed on the inner circumferential wall body of the first concave cavity, and an eccentric block seat is convexly arranged on one side of the second shaft hole facing the first concave cavity; the eccentric block comprises a first eccentric block and a second eccentric block, the first eccentric block and the second eccentric block are identical in appearance and are circular, a pair of first blocking grooves are formed in the outer ring of the first eccentric block, a first eccentric hole is formed in the middle of the first eccentric block, a first clamping spring groove is formed in one end of the first eccentric hole, a pair of second blocking grooves are formed in the outer ring of the second eccentric block, the positions of the pair of second blocking grooves correspond to those of the pair of first blocking grooves, a second eccentric hole corresponding to the positions of the first eccentric hole is formed in the middle of the second eccentric block, a second clamping spring groove is formed in one end of the second eccentric hole, the second clamping spring groove and the first clamping spring groove are identical in shape and are arranged in a staggered mode, and the first eccentric block and the second eccentric block are sleeved on the eccentric block seat through the respective first eccentric hole and second eccentric hole; the eccentric check ring is circular, the first shaft hole is formed in the axial middle of the eccentric check ring, a pair of eccentric check blocks are convexly arranged on one side surface of the eccentric check ring in the thickness direction, an eccentric shaft seat is convexly arranged on one side of the first shaft hole facing the eccentric check block, the eccentric shaft seat is arranged in a second shaft hole of the fixed toothed plate, the pair of eccentric check blocks are arranged in a pair of first blocking grooves and a pair of second blocking grooves of the first eccentric block and the second eccentric block, and a yielding groove is formed in the outer circle edge of the eccentric check ring; the inner gear ring is in a circular ring shape, a third shaft hole is formed in the middle of the axial direction of the inner gear ring, and inner teeth for meshing with the inner gear ring are formed in the radial outer circumferential wall body of the inner gear ring; the clamping springs are circular, and a pair of clamping spring feet which are used for hooking the first clamping spring groove and the second clamping spring groove are formed at the opening end of each clamping spring; the movable toothed plate is disc-shaped, a fourth shaft hole is formed in the middle of the axial direction of the movable toothed plate, a second concave cavity is concavely formed in one side face of the thickness direction of the movable toothed plate, a group of second connecting bosses used for being connected with the armrests are convexly arranged on the other side face of the thickness direction of the movable toothed plate, and tooth grooves used for being meshed with the inner teeth are formed in the inner circumferential wall body of the second concave cavity; the closed ring is enclosed at the periphery of the outer edges of the fixed toothed plate and the movable toothed plate.

3. A fitness center as claimed in claim 1, wherein: the bottom of frame is equipped with the base, the upper surface concave formation of base accomodates the chamber, the top activity of accomodating the chamber sets up the running platform, works as the running platform is relative when the frame descends and expands, the running platform covers accomodate the chamber, works as the running platform is relative the frame draws in and merges, reveals accomodate the chamber.

4. A fitness center as claimed in claim 1, wherein: the bottom of frame is equipped with the base, the dog is established to the upper surface bulge of base, the dog is located the front side of the central line of running platform, when the limit is parallel with the frame to the upper lift of running platform, the lower part of running platform with the dog supports.

5. A fitness center as claimed in claim 1, wherein: the body-building center further comprises a cross flow fan and a negative ion generator, the frame is in a shape of a Chinese character 'men', the top of the frame is a cross beam, a cavity is formed in the shell of the cross beam, the cross flow fan is arranged in the cavity along the length direction of the cross beam, an air outlet is formed in the position, corresponding to the cross flow fan, of the shell of the cross beam, the air outlet faces the running table, and the negative ion generator is arranged in the cavity and is located on the other side of the cross flow fan, corresponding to the air outlet.

6. A fitness center as claimed in claim 1, wherein: the body-building center further comprises a rolling curtain, the frame is in a shape of a door, the top of the frame is a cross beam, a cavity is formed in the cross beam, a scroll along the length direction of the cross beam is arranged in the cavity, a curtain outlet is formed in the lower position of the scroll in the cavity, the top end of the rolling curtain is wound on the scroll, and the bottom end of the rolling curtain extends out of the curtain outlet.

7. A fitness center as claimed in claim 1, wherein: the body-building center also comprises a button switch, wherein the button switch comprises a mounting seat, a PCB (printed circuit board), a swinging assembly, a knob assembly and a pressing assembly;

8. A fitness center as claimed in claim 1, wherein: the body-building center also comprises a first chest expander, wherein the bottom of the frame is provided with a base, the width of the base is larger than that of the running table, so that the base protrudes towards the two sides of the running table, and at least more than one first chest expander is arranged at the protruding part; the first chest expander comprises a first torque output mechanism, a first pull wire and a first handle, wherein the first torque output mechanism is arranged in the base, a first outlet is formed in the base, one end of the first pull wire is connected with the first torque output mechanism, and the other end of the first pull wire penetrates out of the first outlet and is connected with the first handle.

9. A fitness center as claimed in claim 1, wherein: the exercise center also comprises a double-screen switching display device, wherein the double-screen switching display device comprises

a button switch mounted on the main display screen;

A main board;

10. A fitness center as claimed in claim 1, wherein: the first elevating system includes two running platform lead screws, first gear motor and the running platform nut of cooperation on the running platform lead screw, the vertical installation running platform lead screw respectively in frame both sides, two running platform lead screw connection first gear motor, running platform front portion both sides are equipped with the protruding axle of running platform, be equipped with the first recess that supplies running platform protruding axle to place on the running platform nut, the running platform nut cooperation is on the running platform lead screw, drives running platform front portion and makes elevating movement along the running platform lead screw.