CN109701216B

CN109701216B - Body-building treading device

Info

Publication number: CN109701216B
Application number: CN201910048727.XA
Authority: CN
Inventors: 颜小斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-18
Filing date: 2019-01-18
Publication date: 2020-06-23
Anticipated expiration: 2039-01-18
Also published as: CN109701216A

Abstract

The invention discloses a body-building treading device, relating to a body-building apparatus, which has the technical scheme key points that: the device comprises a bottom plate, wherein a handrail for people to support is arranged on the bottom plate, a motor and a spindle driven by the motor to rotate are also arranged on the bottom plate, the spindle is rotatably arranged above the bottom plate along the horizontal direction, two pairs of treading pieces are axially fixed on the spindle, each treading piece comprises a treading head and a connecting rod for connecting and fixing the treading head and the spindle, each pair of treading pieces are respectively positioned on two radial sides of the spindle, and the two pairs of treading pieces are positioned in different radial directions of the spindle; the connecting rod is bent, and the position of the connecting rod fixed on the main shaft deviates from a connecting line between the center of the treading head and the axis of the main shaft. The treading head and the connecting rod of the body-building treading device can smoothly rotate, so that the use experience of a user is better; by arranging the bedplate, the working and learning requirements of the user during exercise can be met; through setting up solar panel, this body-building trample ware can break away from the power and use in the place that has sunshine to shine in the open air.

Description

Body-building treading device

Technical Field

The invention relates to fitness equipment, in particular to a fitness treading device.

Background

With the development of fitness exercise of the whole people, the masses participate in physical training more, so that the coverage of the physical fitness equipment is increasingly wide, and the requirements of people on the physical fitness equipment are more and more. The trample device is a common fitness equipment, and a user tramples the pedal by feet to achieve the purposes of exercising leg strength and losing weight and also can exercise the heart and lung by the similar exercises of running, climbing stairs and the like.

The prior Chinese utility model with the publication number of CN206715145U discloses a treading device for body building, which comprises a frame, wherein the frame consists of a base, a left upright and a right upright which are arranged at two sides of the base, a movable space is formed between the left upright and the right upright, and a support rod is erected at the upper part of the frame; bearing seats which are symmetrical to each other are arranged on two sides of the lower part of the rack, and the bearing seats are connected through a rotating shaft; a fixed sleeve is fixed on the rotating shaft, a left connecting rod and a right connecting rod are arranged at two ends of the fixed sleeve, a gap is formed between the left connecting rod and the right connecting rod, and the left connecting rod is not parallel to the right connecting rod; both ends of the left connecting rod and the right connecting rod are provided with treading heads; the base is provided with a fixed seat, and a control motor is arranged on the fixed seat; a driven gear is arranged on a motor shaft of the control motor.

When the resistance that body-building personnel felt pivot self and brought had can't satisfy the demand, the electric current size of accessible resistance regulating switch change control motor, when the electric current is big more, control motor self magnetic field is big more, and the pivot is then difficult more to drive the motor shaft of control motor and take place to rotate to the resistance that forms is then big more, and both feet are if want to drive to trample the head and remove then need apply stronger power, play further body-building effect.

The above prior art solutions have the following drawbacks: referring to the attached figure 2 of the specification of the utility model, the connecting rod connecting the treading head and the motor shaft is a straight rod, and the axis of the connecting rod passes through the axis of the motor shaft. When the connecting rod rotates to be close to a vertical state and the user tramples the trample head, the component force of the trample head driving motor shaft rotating is small, so that the rotation of the trample head and the connecting rod is not smooth, and the use experience of the user is influenced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the body-building treading device, the treading head and the connecting rod can smoothly rotate, and the use experience of a user is better.

The technical purpose of the invention is realized by the following technical scheme: a body-building treading device comprises a bottom plate, wherein a handrail for people to support is arranged on the bottom plate, a motor and a spindle driven by the motor to rotate are further arranged on the bottom plate, the spindle is rotatably arranged above the bottom plate along the horizontal direction, two pairs of treading pieces are axially fixed on the spindle and comprise treading heads and connecting rods for connecting and fixing the treading heads and the spindle, each pair of treading pieces are respectively positioned on two sides of the spindle in the radial direction, and the two pairs of treading pieces are positioned in different directions of the spindle in the radial direction; the connecting rod is bent, and the position of the connecting rod fixed on the main shaft deviates from a connecting line between the center of the treading head and the axis of the main shaft.

Through the technical scheme, the motor is powered on, and then the motor outputs torque which has the tendency of driving the main shaft to rotate. The main shaft is driven to rotate by a user in a mode of treading the treading head, and the rotation direction of the main shaft is opposite to the direction of the torque output by the motor, so that the rotation of the main shaft has resistance; the user can adjust the current of input motor and adjust the pivoted resistance size of main shaft, makes this resistance enough support user's weight, and the user can drive the pivot through the mode of trampling and rotate, plays body-building effect. When the user tramples the treading head, and the connecting rod rotates to be close to the vertical state, the bent connecting rod can also generate larger component force to drive the main shaft to rotate, the treading head and the connecting rod of the body-building treading device rotate smoothly, and the user experience is better.

Preferably, the treading head comprises an outer sleeve and an elastic sleeve arranged in the outer sleeve, the outer sleeve is provided with a plurality of massage holes for the elastic sleeve to protrude, and a driving mechanism for driving the elastic sleeve to protrude or retract into the massage holes is arranged in the elastic sleeve.

Through above-mentioned technical scheme, when this trample ware of user's bare foot use, user's accessible actuating mechanism makes all massage downthehole all protrusion elastic sleeves, and the protrusion can play the effect of antiskid and massage in the elastic sleeve of outer sleeve outer wall to user's sole, promotes user's use and experiences. When a user wears shoes and uses the trample device, the user can retract all the elastic sleeves into the massage holes through the driving mechanism, so that the soles are not contacted with the elastic sleeves, the elastic sleeves are not abraded by the relatively hard soles, and the service life of the massage protrusions is prolonged.

Preferably, the driving mechanism comprises a driving cylinder rotatably arranged in the elastic sleeve and a driving block fixed on the elastic sleeve, the driving block is opposite to the massage hole, the elastic sleeve is fixed with the outer sleeve, and the contact surface of the driving cylinder and the driving block comprises an inclined guide surface; when the driving cylinder rotates relative to the elastic sleeve, the driving cylinder drives the driving block to move towards the direction of the massage hole through the guide surface and extrudes the elastic sleeve out of the massage hole; the treading head further comprises a positioning mechanism for fixing the relative position of the driving cylinder and the outer sleeve.

Through the technical scheme, when the driving cylinder rotates relative to the elastic sleeve, the driving cylinder can drive the driving block to move towards the massage hole through the guide surface and extrude the elastic sleeve out of the massage hole; when the driving cylinder rotates reversely, the elastic force of the elastic sleeve drives the driving block to retract into the driving cylinder, and then the elastic sleeve retracts into the massage hole. The user can realize the synchronous protrusion or the retraction of all elastic sleeves by rotating the driving barrel, and the operation is simple and convenient. The positioning mechanism is used for fixing the relative position of the driving cylinder and the outer sleeve and preventing the driving cylinder from generating non-artificial rotation.

Preferably, the positioning mechanism comprises a positioning rod fixed on the outer sleeve and two positioning pieces hinged to the driving cylinder, the positioning pieces are provided with positioning grooves, and the positioning pieces can rotate around the hinged positions to switch two states of clamping and separating the positioning rods and the positioning grooves; when the positioning rod is clamped with a positioning piece of the positioning rod, the elastic sleeve is in a state of protruding out of the massage hole; when the positioning rod is clamped with the other positioning piece, the elastic sleeve is in a state of retracting into the massage hole.

Through the technical scheme, a user can complete locking or unlocking of the driving barrel and the positioning rod in a mode of rotating the positioning piece, so that the locking or unlocking is more convenient; through setting up two setting elements, when the setting lever with correspond the setting element joint, the elastic sleeve just in time is located the state of protrusion massage hole or retraction massage hole, convenience of customers operates.

Preferably, the positioning piece comprises a driving plate deviating from the positioning groove, a driving groove for embedding the driving plate is formed in the driving barrel, and a first spring for driving the driving plate to roll out of the driving groove is arranged in the driving groove.

Through above-mentioned technical scheme, when needing to rotate the driving barrel, user's accessible finger presses the drive plate, makes the drive plate embedding driving inslot, and the cell wall in driving groove can rotate the driving barrel for personnel and create the point of application of force, makes things convenient for personnel to rotate the driving barrel this moment. When a user drives the driving cylinder to rotate in place, the hand leaves the driving plate, the positioning piece spontaneously rotates under the elastic action of the first spring, the positioning rod is embedded in the positioning groove, and the driving cylinder and the outer sleeve are automatically locked. In conclusion, the user can conveniently adjust the position of the driving cylinder.

Preferably, the handrail comprises two pillars fixed on the bottom plate and a handrail fixed between the two pillars; the two struts are respectively provided with a second hinge part, the second hinge parts are rotatably provided with a bedplate, the bedplate can rotate to the positions above the holding rods or below the holding rods around the second hinge parts, when the bedplate rotates to the positions above the holding rods, the bedplate can abut against the holding rods through a plate surface, and at the moment, the plate surface of the bedplate is along the horizontal plane.

Through above-mentioned technical scheme, the platen can rotate to holding up the pole below around articulated portion two, and the user can hold and take exercise in holding up the pole. The user can also rotate the bedplate to the position above the supporting rods, the bedplate abuts against the supporting rods through the bottom surface, and the plate surface of the bedplate is along the horizontal plane; because the bedplate is reliably supported by the supporting rods, the bedplate can keep a horizontal state in normal use. The user can place newspaper, notebook computer, cell-phone etc. on the platen, carries out work study when taking exercise, and this body-building trample device's application range is wide.

Preferably, the pillar is provided with a first hinge part, the second hinge part is rotatably arranged on the first hinge part, the bedplate comprises sub-plates respectively connected with the first hinge parts, the two sub-plates can be separated or combined to form the whole bedplate, and the sub-plates and the second hinge parts can rotate around the first hinge parts to be in a sagging state close to the pillar.

Through above-mentioned technical scheme, two daughter boards can alternate segregation to rotate to the vertical state that the face is near the pillar through articulated portion one, articulated portion two, the platen is difficult for sheltering from user's sight this moment, and the platen is also difficult for touching the human body, and it is comparatively safe when the user grips the handrail and takes exercise.

Preferably, the second hinge part comprises a sliding rod which is rotatably connected with the bedplate, and the bedplate can slide along the sliding rod; the sliding rod is sleeved with a second spring driving the bedplate to be far away from the second hinge part, and the side walls of the two daughter boards, which are in mutual contact, are respectively provided with a clamping groove and a clamping block which can be mutually buckled.

Through the technical scheme, a user can slide the daughter boards, so that the two daughter boards are clamped through the clamping groove and the clamping block, and after the two daughter boards are buckled through the clamping groove and the clamping block, the two daughter boards cannot rotate relatively; at the moment, the two daughter boards are driven to be mutually abutted by the elastic force of the second spring, the bedplate can keep an integrated state, and the bedplate is not easy to spontaneously separate in the using process.

Preferably, the solar energy collecting device further comprises a solar panel, and the solar panel is electrically connected with the motor.

Through the technical scheme, the fitness treading device can be used by being separated from a power supply in the outdoor sunlight irradiation place, and the fitness treading device is wide in application range.

Preferably, the stepping device further comprises a sensor for detecting the rotation number of the stepping member and a display panel for displaying the rotation number of the stepping member.

Through above-mentioned technical scheme, the combination of sensor and display panel can make things convenient for the user to know the step number of trampling.

In summary, compared with the prior art, the beneficial effects of the invention are as follows:

1. the treading head and the connecting rod can smoothly rotate, so that the use experience of a user is better;

2. by arranging the bedplate, the working and learning requirements of the user during exercise can be met;

3. through setting up solar panel, this body-building trample ware can break away from the power and use in the place that has sunshine to shine in the open air.

Drawings

FIG. 1 is a first perspective view of the embodiment of a treadmill for exercise, mainly highlighting the overall structure of the treadmill;

FIG. 2 is a partial view of the first embodiment of the exercise treadmill, illustrating the structure of the tread head;

FIG. 3 is a cross-sectional view A-A of FIG. 2, mainly highlighting the structure of the drive mechanism;

FIG. 4 is a partial view of the exercise treadmill of the embodiment shown in section two, primarily highlighting the structure of the walker;

fig. 5 is a second perspective view of the exercise treadle of the embodiment, mainly highlighting the structure of the deck in the upright position.

In the figure, 1, a bottom plate; 10. a solar panel; 2. a support frame; 3. a motor; 31. a main shaft; 4. a tread member; 5. treading the head; 41. a connecting rod; 51. an outer sleeve; 52. an elastic sleeve; 511. a massage hole; 6. a drive mechanism; 61. a drive cylinder; 62. a drive block; 63. a guide surface; 7. a positioning mechanism; 71. positioning a rod; 72. a positioning member; 721. positioning a groove; 722. a drive plate; 611. a drive slot; 612. a first spring; 613. a limiting block; 21. a pillar; 22. a support rod; 23. a platen; 211. a first hinge part; 24. a second hinge part; 241. a slide bar; 242. a second spring; 231. a card slot; 232. a clamping block; 8. a sensor; 81. a display panel.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the body-building treading device disclosed by the invention comprises a bottom plate 1, wherein a solar panel 10 and a support frame 2 for people to support are arranged on the bottom plate 1, a motor 3 and a main shaft 31 driven by the motor 3 to rotate are further arranged on the bottom plate 1, the main shaft 31 is rotatably arranged above the bottom plate 1 along the horizontal direction, and two pairs of treading pieces 4 are fixed on the main shaft 31.

The treading members 4 comprise treading heads 5 and connecting rods 41 for connecting and fixing the treading heads 5 with the main shaft 31, each pair of treading members 4 are respectively positioned at two sides of the main shaft 31 in the radial direction and are symmetrical about the center of the main shaft 31, and the two pairs of treading members 4 are positioned at different positions of the main shaft 31 in the axial direction and are positioned at two directions which are perpendicular to each other in the radial direction of the main shaft 31. The connecting rod 41 is bent, the position of the connecting rod 41 fixed on the main shaft 31 deviates from the connecting line of the center of the treading head 5 and the axis of the main shaft 31, when the connecting rod 41 rotates to be close to the vertical state and a user treads the treading head 5, the connecting rod 41 can generate a large component force to drive the main shaft 31 to rotate. The motor 3 establishes transmission with the main shaft 31 in a belt pulley transmission mode, wherein the diameter of a belt pulley on the main shaft 31 is larger than that of a belt pulley at the output end of the motor 3, and when the main shaft 31 rotates, the rotating speed of the main shaft 31 is transmitted to a rotating shaft of the motor 3 after being increased in speed by the belt pulley.

Referring to fig. 2 and 3, the tread head 5 includes a cylindrical outer sleeve 51, and an elastic sleeve 52 fixed in the outer sleeve 51, wherein the outer sleeve 51 is fixedly connected with the connecting rod 41 through an end portion, and the elastic sleeve 52 is tightly fixed on the inner wall of the outer sleeve 51 through glue. The outer sleeve 51 is provided with a plurality of massage holes 511 for the elastic sleeve 52 to protrude, and the massage holes 511 are uniformly distributed along the circumferential direction and the axial direction of the outer sleeve 51. The elastic sleeve 52 is provided with a driving mechanism 6 for driving the elastic sleeve 52 to protrude or retract into the massage hole 511.

The driving mechanism 6 comprises a driving cylinder 61 rotatably arranged in the elastic sleeve 52 and driving blocks 62 fixed on the elastic sleeve 52, the number of the driving blocks 62 is the same as that of the massage holes 511, the driving blocks 62 are opposite to the massage holes 511 one by one, the size of the driving blocks 62 is smaller than that of the massage holes 511, the driving blocks 62 are partially embedded in the elastic sleeve 52, and the driving blocks 62 are not easy to separate from the elastic sleeve 52. The driving cylinder 61 is in sliding contact with the inner wall of the elastic sleeve 52 through the outer cylinder wall, and the driving cylinder 61 can rotate in the elastic sleeve 52. The driving block 62 is partially embedded in the driving cylinder 61, and the contact surface of the driving cylinder 61 and the driving block 62 comprises an inclined guide surface 63, and the guide surface 63 is positioned in the same pointer direction of all the driving blocks 62 with respect to the axis of the driving cylinder 61. When the driving cylinder 61 rotates relative to the elastic sleeve 52, the driving cylinder 61 can drive the driving block 62 to move towards the massage hole 511 through the guide surface 63, and extrude the elastic sleeve 52 out of the massage hole 511; when the driving cylinder 61 rotates reversely, the elastic force of the elastic sleeve 52 drives the driving block 62 to retract into the driving cylinder 61, and the elastic sleeve 52 retracts into the massage hole 511.

When the user uses the trample device with bare feet, the elastic sleeves 52 are protruded in all the massage holes 511 in a manner of rotating the driving cylinder 61, and the elastic sleeves 52 protruded out of the outer wall of the outer sleeve 51 can play the anti-skidding and massage effects on the soles of the user, thereby improving the use experience of the user. When the user wears the shoes using the treadle, the user can retract all the elastic sleeves 52 into the massage holes 511 by rotating the driving cylinder 61 in the reverse direction, so that the shoe soles do not contact with the elastic sleeves 52, and the relatively hard shoe soles do not wear the elastic sleeves 52.

The tread head 5 further comprises a positioning mechanism 7 for fixing the relative position of the drive cylinder 61 and the outer sleeve 51. The positioning mechanism 7 comprises a positioning rod 71 fixed on the outer sleeve 51 and two positioning pieces 72 hinged on the driving cylinder 61, the positioning rod 71 is fixed on the end part of the outer sleeve 51 departing from the connecting rod 41, and the positioning rod 71 is bent. The positioning element 72 is provided with a positioning slot 721, the positioning element 72 can rotate around the hinge to switch between two states of clamping and separating the positioning rod 71 and the positioning slot 721, and when the positioning rod 71 is clamped with the positioning slot 721, the outer sleeve 51 limits the driving cylinder 61 to rotate through the connecting action of the positioning rod 71 and the positioning element 72. The positions of the two positioning members 72 are set as follows: when the positioning rod 71 is clamped with a positioning piece 72 thereof, the elastic sleeve 52 is in a state of protruding out of the massage hole 511; when the positioning rod 71 is engaged with the other positioning member 72, the elastic sleeve 52 is in a state of being retracted into the massage hole 511, and the two positioning members 72 cannot be engaged with the positioning rod 71 at the same time.

The positioning member 72 includes a driving plate 722 departing from the positioning slot 721, the driving barrel 61 is provided with a driving slot 611 for the driving plate 722 to be inserted into, a first spring 612 is disposed in the driving slot 611, the elastic force direction of the first spring 612 is the direction for driving the driving plate 722 to rotate out of the driving slot 611, and the first spring 612 provides a fastening force for the locking and fixing of the positioning member 71 and the positioning member 72, so as to prevent the positioning member 72 and the positioning member 71 from being separated spontaneously. When the driving cylinder 61 needs to be rotated, a user can press the driving plate 722 through fingers to enable the driving plate 722 to be embedded into the driving groove 611, and at the moment, the groove wall of the driving groove 611 can create a force application point for a person to rotate the driving cylinder 61, so that the person can conveniently rotate the driving cylinder 61.

Two limit blocks 613 are further fixed to the end of the driving cylinder 61, and the two limit blocks 613 are used for abutting against the positioning rod 71 to limit the rotation angle of the driving cylinder 61. When the driving cylinder 61 rotates to the position rod 71 to abut against a limit block 613 thereof, the elastic sleeve 52 is just in the state of protruding the massage hole 511; when the driving cylinder 61 rotates until the positioning rod 71 abuts against the other limiting block 613, the elastic sleeve 52 is just in a state of being retracted into the massage hole 511. When the user drives the driving cylinder 61 to rotate to the right position, the hand leaves the driving plate 722, the positioning member 72 rotates spontaneously under the elastic force of the first spring 612, so that the positioning rod 71 is embedded in the positioning slot 721, and the locking of the driving cylinder 61 and the outer sleeve 51 is completed automatically. In conclusion, the user can conveniently adjust the position of the driving cylinder 61, the driving cylinder 61 is not easy to rotate spontaneously, and the reliability is high.

Referring to fig. 4 and 5, the handrail 2 includes two pillars 21 fixed to the base plate 1, a handrail 22 fixed between the two pillars 21, and a table plate 23, the handrail 22 is located above the stepping member 4, and the length direction of the handrail 22 is along the horizontal direction. The first hinge parts 211 are arranged on the two struts 21, and the first hinge parts 211 are located at the same height position close to the handrail 22. The side walls of the two first hinge parts 211 opposite to each other are provided with a second hinge part 24 in a rotating mode, and the rotating surface of the second hinge part 24 is a vertical surface. The second hinge portion 24 includes a sliding rod 241 fixed integrally, and the length direction of the sliding rod 241 extends in a direction away from the first hinge portion 211. The bedplate 23 comprises two identical daughter boards which can be separated or combined to form the whole bedplate 23; the two sliding rods 241 are respectively penetrated into the two sub-plates, and the sub-plates can freely rotate around the sliding rods 241 and can also slide along the length direction of the sliding rods 241. The sliding bar 241 is completely separated from the sub-board by the limitation of a boss fixed at the end; the sliding rod 241 is sleeved with a second spring 242 for driving the bedplate 23 to be far away from the second hinge part 24. The lateral wall that two daughter boards are used for mutual contact is equipped with draw-in groove 231 and fixture block 232 that can lock each other respectively, and two daughter boards pass through draw-in groove 231 and fixture block 232 lock back, can not produce relative rotation between two daughter boards.

The two sub-boards can be separated from each other, and the first hinge part 211 and the second hinge part 24 rotate to a vertical state that the board surface is close to the support post 21, at the moment, the bedplate 23 is not easy to shield the sight of a user, and the user can hold the holding rod 22 for exercise. The user can also rotate the bedplate 23 to the position above the supporting rods 22, the bedplate 23 abuts against the supporting rods 22 through the bottom surface, and the plate surface of the bedplate 23 is along the horizontal plane; the user slidable daughter board makes two daughter boards pass through draw-in groove 231, fixture 232 joint, and the elasticity of spring two 242 at this moment orders about two daughter boards and supports tightly each other, and platen 23 can keep integrative state, and platen 23 is difficult for spontaneous separation. Since the bedplate 23 is securely supported by the handrail 22, the bedplate 23 can be kept horizontal in normal use. The user can place newspapers, a notebook computer, a mobile phone and the like on the bedplate 23, and work and study are carried out while exercising.

Referring to fig. 5, the solar panel 10 is electrically connected to the motor 3, and the motor 3 is also electrically connected to an external power source, so that the exercise treading device can be used by being separated from the power source in an outdoor place where sunlight irradiates, and the exercise treading device has a wide application range.

The bottom plate 1 is further provided with a sensor 8 for detecting the number of rotation turns of the stepping piece 4, the sensor 8 is specifically a proximity switch, and the sensor 8 generates a signal through the detection of the passing of the connecting rod 41. The display panel 81 for displaying the number of signals of the sensor 8 is provided on the support post 21, so that the user can know the number of steps. A timer may be integrated within the display sensor 8 to display the time of the user's movement.

The working conditions of the body-building treadle device are as follows: powering the motor 3 on, the motor 3 outputs a torque which has a tendency to drive the spindle 31 in rotation. The user drives the main shaft 31 to rotate by treading the treading head 5, the rotating direction of the main shaft 31 is opposite to the torque direction output by the motor 3, and the rotation of the main shaft 31 has resistance; the user can adjust the current of input motor 3 and adjust the pivoted resistance size of main shaft 31, makes this resistance enough support user's weight, and the user can drive the pivot through the mode of trampling and rotate, plays body-building effect.

When the user steps on the treading head 5 and the connecting rod 41 rotates to a state close to vertical, the bent connecting rod 41 can generate a large component force to drive the main shaft 31 to rotate, so that the treading head 5 and the connecting rod 41 of the body-building treading device rotate smoothly, and the user experience is good.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. A body-building treading device comprises a bottom plate (1), wherein a handrail (2) for people to support is arranged on the bottom plate (1), a motor (3) and a main shaft (31) driven by the motor (3) to rotate are further arranged on the bottom plate (1), the main shaft (31) is rotatably arranged above the bottom plate (1) along the horizontal direction, two pairs of treading pieces (4) are axially fixed on the main shaft (31), each pair of treading pieces (4) comprises a treading head (5) and a connecting rod (41) for connecting and fixing the treading head (5) and the main shaft (31), each pair of treading pieces (4) are respectively positioned on two radial sides of the main shaft (31), and the two pairs of treading pieces (4) are positioned on different radial directions of the main shaft (31); the method is characterized in that: the connecting rod (41) is bent, and the position of the connecting rod (41) fixed on the main shaft (31) deviates from the connecting line between the center of the stepping head (5) and the axis of the main shaft (31);

the stepping head (5) comprises an outer sleeve (51) and an elastic sleeve (52) arranged in the outer sleeve (51), the outer sleeve (51) is provided with a plurality of massage holes (511) for the elastic sleeve (52) to protrude, and a driving mechanism (6) for driving the elastic sleeve (52) to protrude or retract into the massage holes (511) is arranged in the elastic sleeve (52);

the driving mechanism (6) comprises a driving cylinder (61) rotatably arranged in the elastic sleeve (52) and a driving block (62) fixed on the elastic sleeve (52), the driving block (62) is opposite to the massage hole (511), the elastic sleeve (52) is fixed with the outer sleeve (51), and the contact surface of the driving cylinder (61) and the driving block (62) comprises an inclined guide surface (63); when the driving cylinder (61) rotates relative to the elastic sleeve (52), the driving cylinder (61) drives the driving block (62) to move towards the massage hole (511) through the guide surface (63) and extrudes the elastic sleeve (52) out of the massage hole (511); the stepping head (5) also comprises a positioning mechanism (7) for fixing the relative position of the driving cylinder (61) and the outer sleeve (51);

the positioning mechanism (7) comprises a positioning rod (71) fixed on the outer sleeve (51) and two positioning pieces (72) hinged to the driving cylinder (61), a positioning groove (721) is formed in each positioning piece (72), and each positioning piece (72) can rotate around the hinged position to switch two states of clamping and separating the positioning rod (71) and the positioning groove (721); when the positioning rod (71) is clamped with a positioning piece (72) of the positioning rod, the elastic sleeve (52) is in a state of protruding out of the massage hole (511); when the positioning rod (71) is clamped with the other positioning piece (72), the elastic sleeve (52) is in a state of being retracted into the massage hole (511).

2. The exercise treadmill of claim 1, wherein: the positioning piece (72) comprises a driving plate (722) deviating from the positioning groove (721), a driving groove (611) for the driving plate (722) to be embedded in is formed in the driving barrel (61), and a first spring (612) for driving the driving plate (722) to rotate out of the driving groove (611) is arranged in the driving groove (611).

3. The exercise treadmill of claim 1, wherein: the handrail (2) comprises two pillars (21) fixed on the bottom plate (1) and a handrail (22) fixed between the two pillars (21); two hinging parts (24) are arranged on the two struts (21), a bedplate (23) is arranged on the hinging parts (24) in a rotating mode, the bedplate (23) can rotate to the position above the supporting rods (22) or the position below the supporting rods (22) around the hinging parts (24), when the bedplate (23) rotates to the position above the supporting rods (22), the bedplate (23) can abut against the supporting rods (22) through a plate surface, and the plate surface of the bedplate (23) is along the horizontal plane.

4. The exercise treadmill of claim 3, wherein: the bedplate (23) comprises daughter boards which are respectively connected with the two first hinge parts (211), the two daughter boards can be separated and combined to form the whole bedplate (23), and the daughter boards and the second hinge parts (24) can rotate around the first hinge parts (211) to be in a sagging state close to the strut (21).

5. The exercise treadmill of claim 4, wherein: the second hinge part (24) comprises a sliding rod (241) which is in rotary connection with the bedplate (23), and the bedplate (23) can slide along the sliding rod (241); a second spring (242) for driving the bedplate (23) to be far away from the second hinge part (24) is sleeved on the sliding rod (241), and clamping grooves (231) and clamping blocks (232) which can be buckled with each other are respectively formed in the side walls of the two daughter boards, which are used for being contacted with each other.

6. The exercise treadmill of claim 1, wherein: still include solar panel (10), solar panel (10) are connected with motor (3) electricity.

7. The exercise treadmill of claim 1, wherein: the stepping device also comprises a sensor (8) for detecting the number of turns of the stepping piece (4) and a display panel (81) for displaying the number of turns of the stepping piece (4).