CN219630527U - Running machine - Google Patents

Abstract

The embodiment of the utility model provides a running machine, which comprises: the running platform comprises a seat body and an arc-shaped supporting plate arranged on the seat body; the transmission assembly comprises a front roller assembly and a rear roller assembly, and the front roller assembly and the rear roller assembly are arranged at intervals in the length direction of the seat body; the crawler belt assembly comprises a plurality of crawler belt strips, a belt and a supporting wheel set, wherein the crawler belt strips are fixed on the belt, the belt is sleeved on the front roller assembly and the rear roller assembly and forms transmission fit, the inner side surface of the belt is provided with a guide bulge, the supporting wheel set comprises a guide wheel, the guide wheel is rotatably arranged between the belt and an arc-shaped supporting plate, and the guide bulge and the guide wheel form limit fit to limit the belt in the width direction of the running table. According to the technical scheme, the belt can be limited in the width direction of the seat body, so that the belt is prevented from shaking left and right, the structural stability and the operation reliability of the crawler assembly in the operation process are improved, and the working performance of the running machine is further improved.

Description

Running machine

Technical Field

The utility model relates to the technical field of fitness equipment, in particular to a running machine.

Background

In the related art, a running machine without a driving motor is proposed, namely, a user needs to actively apply power to a track assembly of the running machine through limb movement so as to drive the track assembly to run, thereby realizing the running and body building functions. However, the related art has a disadvantage of poor positioning accuracy among various components of the track assembly, so that the track assembly is easily deflected, and the running stability of the running machine is poor, thereby affecting the use experience of users.

Disclosure of Invention

Embodiments of the present utility model provide a treadmill to solve or alleviate one or more technical problems in the prior art.

The running machine provided by the embodiment of the utility model comprises: the running platform comprises a seat body and an arc-shaped supporting plate arranged on the seat body; the transmission assembly comprises a front roller assembly and a rear roller assembly, and the front roller assembly and the rear roller assembly are arranged at intervals in the length direction of the seat body; the crawler belt assembly comprises a plurality of crawler belt strips, a belt and a supporting wheel set, wherein the crawler belt strips are fixed on the belt, the belt is sleeved on the front roller assembly and the rear roller assembly and forms transmission fit, the inner side surface of the belt is provided with a guide bulge, the supporting wheel set comprises a guide wheel, the guide wheel is rotatably arranged between the belt and an arc-shaped supporting plate, and the guide bulge and the guide wheel form limit fit to limit the belt in the width direction of the running table.

In one embodiment, the guide wheel comprises a shaft body and two limiting plates which are oppositely arranged in the axial direction of the shaft body, and a limiting groove is defined between the two limiting plates; the guide protrusion extends along the circumferential direction of the belt, and has two guide surfaces opposite to each other in the width direction of the belt, the two guide surfaces respectively forming surface contact with the inner side surfaces of the two limiting plates.

In one embodiment, the guide surface of the guide projection is inclined with respect to the inner side surface of the belt at an inclination angle of 60 to 80 degrees.

In one embodiment, the plurality of guide wheels are arranged at intervals in the length direction of the arc-shaped support plate; the supporting wheel set further comprises a plurality of rollers rotatably arranged between the belt and the arc-shaped supporting plate, and at least one roller is arranged between two adjacent guide wheels.

In one embodiment, the belt comprises a body and at least one metal wire core embedded in the body and extending in the circumferential direction of the body.

In one embodiment, the portion of the track assembly corresponding to the arcuate support plate is arcuate, the arcuate diameter being 3600 to 4000 mm and the arc being 0.70-0.85.

In one embodiment, the track bar includes a first structural member connected to the belt and a second structural member connected to the first structural member on a side of the first structural member facing away from the belt; wherein, the material hardness of the second structural member is less than the material hardness of the first structural member.

In one embodiment, the belt-facing side of the first structural member is provided with a structural reinforcement, the thickness of which decreases progressively in the direction from the intermediate region to the two ends.

In one embodiment, the treadmill further comprises: the handrail assembly comprises two vertical pipes and two first handrail parts, wherein the two vertical pipes are respectively arranged on two sides of the width direction of the running platform, the two first handrail parts are respectively connected with the two vertical pipes, each first handrail part comprises a first holding section formed by bending, a first connecting section and a second holding section, the first connecting section is connected to the upper end of the vertical pipe, the first holding section is formed by upward bending of the front end of the first connecting section, and the second holding section is formed by downward bending of the rear end of the first connecting section.

In one embodiment, the armrest assembly further comprises: the second handrail part comprises two second connecting sections, two third holding sections and a third connecting section, wherein the two second connecting sections, the two third holding sections and the third connecting section are formed by bending, the rear ends of the two second connecting sections are respectively connected to the front side of the vertical pipe, the two third holding sections are respectively formed by respectively bending the front ends of the second connecting sections upwards, and the third connecting sections are connected between the upper ends of the two third holding sections.

In one embodiment, the front roller assembly and the rear roller assembly each comprise a roller and rollers connected to two ends of the roller, the rollers comprise a wheel body and an anti-slip sleeve sleeved on the wheel body, and the inner side surface of the belt is in surface contact with the outer side surface of the anti-slip sleeve.

In one embodiment, the treadmill further comprises: the resistance adjusting mechanism comprises a magnetic part group, a metal disc and a resistance transmission wheel, the position of the magnetic part group relative to the metal disc is adjustable, a magnetic field line generated by the magnetic part group is cut by the metal disc to apply resistance opposite to the rotation direction of the metal disc, the metal disc is in transmission connection with the resistance transmission wheel through a first transmission belt, the resistance transmission wheel is in transmission connection with the front roller assembly through a second transmission belt, and the resistance transmission wheel is rotatably arranged on the base through a one-way bearing.

In one embodiment, the resistance adjustment mechanism further comprises: the adjusting handle comprises a handle, a gear adjusting block, an elastic piece, a gear column, a gear sheet and a traction rope, wherein the handle is fixedly connected with the gear adjusting block, the gear column is movably arranged on the gear adjusting block through the elastic piece, the gear sheet is provided with a plurality of through holes, the gear adjusting block is driven by the handle to rotate to different angles, so that the gear column is clamped on the different through holes on the gear sheet, one end of the traction rope is connected with the gear adjusting block, the other end of the traction rope is connected with the magnetic piece group, and the traction rope is suitable for moving relative metal discs of the traction magnetic piece group under the rotation of the handle.

According to the technical scheme of the utility model, the guide protrusions are arranged on the inner side surface of the belt, the supporting wheel sets are arranged between the arc-shaped supporting plates and the belt, and the guide wheels and the guide protrusions in the supporting wheel sets are suitable for forming limit fit. Therefore, in the running process of the track assembly, a limit effect can be formed on the belt in the width direction of the seat body, the belt is prevented from shaking left and right, the structural stability and the running reliability of the running process of the track assembly are improved, and the working performance of the running machine is further improved.

The foregoing summary is for the purpose of the specification only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present utility model will become apparent by reference to the drawings and the following detailed description.

Drawings

In the drawings, the same reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily drawn to scale. It is appreciated that these drawings depict only some embodiments according to the disclosure and are not therefore to be considered limiting of its scope.

Fig. 1 illustrates a schematic structure of a treadmill according to an embodiment of the present utility model.

Fig. 2 illustrates an exploded view of a treadmill according to an embodiment of the present utility model.

Fig. 3 illustrates a side view of a treadmill according to an embodiment of the present utility model.

Fig. 4 illustrates a schematic view of a support wheel set of a treadmill according to an embodiment of the present utility model.

Fig. 5 illustrates a schematic view of a belt of a treadmill according to an embodiment of the present utility model.

Fig. 6 illustrates a schematic view of a guide protrusion on a belt of a treadmill according to an embodiment of the present utility model.

Fig. 7 illustrates a limit fit of a guide wheel and a guide protrusion of a treadmill according to an embodiment of the present utility model.

Fig. 8 illustrates a schematic structure of a track assembly of a treadmill according to an embodiment of the present utility model.

Fig. 9 illustrates a schematic structural view of a track bar of a treadmill according to an embodiment of the present utility model.

Fig. 10 illustrates a schematic structural view of a first structural member of a track bar of a treadmill according to an embodiment of the present utility model.

Fig. 11 illustrates a schematic structure of a front roller assembly of a treadmill according to an embodiment of the present utility model.

Fig. 12 illustrates a schematic structure of a driving wheel of a front roller assembly of a treadmill according to an embodiment of the present utility model.

Fig. 13 illustrates a schematic structure of a resistance adjusting mechanism of a treadmill according to an embodiment of the present utility model.

Fig. 14 illustrates a schematic structure of an adjustment handle of a treadmill according to an embodiment of the present utility model.

Fig. 15 illustrates a schematic connection of a traction rope of an adjustment handle of a treadmill with a gear adjustment block according to an embodiment of the present utility model.

Fig. 16 illustrates a schematic structural view of a handrail assembly of a running machine according to an embodiment of the present utility model.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

A treadmill 1 according to an embodiment of the present utility model is described below with reference to fig. 1 to 16.

As shown in fig. 1 and 2, a treadmill 1 according to an embodiment of the present utility model includes a deck 10, a transmission assembly, and a track assembly 30. Specifically, the running block 10 includes a seat 11 and an arc-shaped support plate 12 provided to the seat 11. The transmission assembly includes a front roller assembly 21 and a rear roller assembly 22, and the front roller assembly 21 and the rear roller assembly 22 are disposed at intervals in the length direction of the housing 11. The track assembly 30 includes a plurality of track strips 32, a belt 31 and a support wheel set 33, the track strips 32 are fixed on the belt 31, the belt 31 is sleeved on the front roller assembly 21 and the rear roller assembly 22 and forms transmission fit, the inner side surface of the belt 31 is provided with a wire protrusion 311, the support wheel set 33 includes a guide wheel 331, the guide wheel 331 is rotatably arranged between the belt 31 and the arc-shaped support plate 12, and the wire protrusion 311 and the guide wheel 331 form limit fit to limit the belt 31 in the width direction of the running board 10.

Illustratively, an arcuate support plate 12 is provided on top of the base 11, with an upper surface of the arcuate support plate 12 adapted to support the track assembly 30 via a support wheel set 33. The arc-shaped support plate 12 is constructed in a downwardly concave arc shape such that the arc-shaped support plate 12 has a shape of being depressed at the middle in the longitudinal direction of the seat body 11 and being smoothly curved.

It will be appreciated that track assembly 30 connects a plurality of track strips 32 in series by a belt 31 to form an endless structure. The track assembly 30 is nested between the front roller assembly 21 and the rear roller assembly 22. Wherein, the portion of the track assembly 30 located at the upper side of the base 11 is supported by the support wheel assembly 33 to form an arc identical to or similar to the arc of the arc-shaped support plate 12.

Illustratively, the belt 31 may be multiple in order to increase the structural stability of the connection of multiple track strips 32. For example, the number of the belts 31 may be two, and the two belts 31 may be disposed at intervals in the width direction of the housing 11. Further, the crawler belt 32 has a long strip shape, a plurality of crawler belt 32 are adjacently arranged in the circumferential direction of the belt 31, and two belts 31 are respectively arranged adjacent to both ends in the length direction of the crawler belt 32.

Illustratively, the lead projections 311 are formed by projecting the inner side surface of the belt 31 toward the inner side region surrounded by the belt 31, and the length direction of the lead projections 311 may extend in the circumferential direction of the belt 31 so that the lead projections 311 can maintain movement in the linear direction with the operation of the belt 31 during the operation of the belt 31. The guide wheels 331 may be a plurality of guide wheels 331 arranged at intervals along the arc extension direction of the arc support plate 12, and the guide wheels 331 are rotatably disposed on the base 11. During the operation of the belt 31, the guide wheel 331 forms a rolling fit with the inner surface of the belt 31, and the rotation direction of the guide wheel 331 is opposite to the operation direction of the belt 31. The guide wheel 331 is formed with the guide slot with the protruding 311 looks adaptation of wire on the side perisporium, and the protruding 311 of wire is located the guide slot, and at the in-process of the reverse rotation of guide wheel 331 along with the operation of belt 31, the protruding 311 of wire is suitable for along the relative guide wheel 331 motion of guide slot to play the limiting displacement to the protruding 311 of wire, avoid belt 31 to take place the skew in the width direction of pedestal 11.

Further, the arc-shaped support plates 12 may be a plurality of groups corresponding to the plurality of belts 31, and the support wheel groups 33 may be a plurality of groups corresponding to the plurality of belts 31.

For example, track assembly 30 may include two belts 31 and a plurality of track strips 32 integrally connected and secured by two belts 31. The arc-shaped support plates 12 may be two spaced apart in the width direction of the seat 11, and the arc-shaped support plates 12 and the two belts 31 are respectively provided correspondingly; the number of the supporting wheel sets 33 is two, and the supporting wheel sets are respectively arranged between the arc-shaped supporting plate 12 and the corresponding belt 31.

According to the running machine 1 of the embodiment of the present utility model, by providing the wire protrusion 311 on the inner side surface of the belt 31 and providing the supporting wheel set 33 between the arc-shaped supporting plate 12 and the belt 31, the guide wheel 331 in the supporting wheel set 33 and the wire protrusion 311 are adapted to form a limit fit. Therefore, in the running process of the track assembly 30, a limiting effect can be formed on the belt 31 in the width direction of the seat 11, the belt 31 is prevented from shaking left and right, so that the structural stability and the running reliability of the track assembly 30 in the running process are improved, and the working performance of the running machine 1 is further improved.

In one embodiment, as shown in FIG. 3, the portion of track assembly 30 corresponding to arcuate support plate 12 is arcuate, with a diameter of 3600 to 4000 millimeters and an arc of 0.70-0.85.

In one embodiment, as shown in fig. 4, a plurality of guide wheels 331 are arranged at intervals in the length direction of the arc-shaped support plate 12; the supporting wheel set 33 further includes a plurality of rollers 332 rotatably disposed between the arc-shaped supporting plate 12 and the belt 31, and at least one roller 332 is disposed between two adjacent guiding wheels 331.

In an embodiment of the present utility model, the rollers 332 are adapted to contact the upper side surface of the arcuate support plate 12 and the inner side surface of the belt 31, respectively, to roll against the inner side surface of the belt 31 during operation of the belt 31. Illustratively, the guide wheels 331 are approximately the same diameter as the rollers 332 so that the belt 31 is smoothly supported on the plurality of rollers 332 and the plurality of guide wheels 331.

In one embodiment, as shown in fig. 4 and 7, the guide wheel 331 includes a shaft body 3311 and two limiting plates 3312 disposed opposite to each other in an axial direction of the shaft body 3311, and a limiting groove is defined between the two limiting plates 3312; the lead protrusion 311 extends in the circumferential direction of the belt 31, and the lead protrusion 311 has two guide surfaces 312 opposing each other in the width direction of the belt 31, the two guide surfaces 312 being in surface contact with the inner side surfaces of the two stopper plates 3312, respectively.

Illustratively, the cross-sectional shape of the stop plates 3312 may be circular with the shaft body 3311 being disposed coaxially with the two stop plates 3312. Wherein the diameter of the limiting plate 3312 is larger than that of the shaft body 3311 to form a groove-shaped structure between the two limiting plates 3312 connected to both ends of the shaft body 3311. The limiting groove is defined by the outer peripheral wall surface of the shaft body 3311 and the inner side surfaces of the two limiting plates 3312, and the cross section shape of the limiting groove is matched with the cross section shape of the wire protrusion 311, so that the wire protrusion 311 can be embedded in the limiting groove, and the two guide surfaces 312 of the wire protrusion 311 are in surface contact with the inner side surfaces of the two limiting plates 3312, so that the guide wheel 331 forms a limiting effect on the wire protrusion 311.

Further, in order to further enhance the limit effect of the guide wheel 331 on the wire protrusion 311 during the operation of the belt 31, the length of the wire protrusion 311 is the same as the circumference of the belt 31, i.e. the wire protrusion 311 extends along the circumference of the belt 31 and is connected end to end.

Through the above embodiment, the degree of fit between the wire protrusion 311 and the limit groove is improved, so that the limit effect of the guide wheel 331 on the wire protrusion 311 is further improved.

In one embodiment, as shown in fig. 5 to 7, the guide surface 312 of the wire protrusion 311 is inclined with respect to the inner side surface of the belt 31, and the inclination angle is 60 degrees to 80 degrees.

In the embodiment of the present utility model, either one of the guide surfaces 312 of the guide wire protrusion 311 may be disposed obliquely with respect to the inner side surface of the belt 31, or both guide surfaces 312 may be disposed obliquely with respect to the inner side surface of the belt 31.

Illustratively, the distance between the two guide surfaces 312 of the wire protrusion 311, i.e., the width of the wire protrusion 311, gradually decreases in a direction away from the inner side surface of the belt 31. The inclination angles of the two guide surfaces 312 may be the same or different. Preferably, the two guide surfaces 312 are inclined at the same angle and are each 60 degrees.

It will be appreciated that the cross-sectional shape of the wire protrusion 311 is adapted to the cross-sectional shape of the limiting groove, so that the inner side surfaces of the two limiting plates 3312 of the guide wheel 331 can be correspondingly inclined, and the inclination angle is the same as the inclination angle of the corresponding guide surface 312, so that the guide surface 312 is in surface contact with the inner side surface of the corresponding limiting plate 3312.

In one embodiment, as shown in fig. 8 and 9, the track bar 32 includes a first structural member 321 and a second structural member 322, the first structural member 321 is connected to the belt 31, and the second structural member 322 is connected to the first structural member 321 and is located on a side of the first structural member 321 facing away from the belt 31; wherein, the material hardness of the second structural member 322 is smaller than that of the first structural member 321.

In the embodiment of the present utility model, the first structural member 321 and the second structural member 322 may be connected in any manner. For example, the first structural member 321 and the second structural member 322 may be connected by a fastener. For another example, the first structural member 321 and the second structural member 322 may be connected by adhesion.

Illustratively, the first structural member 321 may be made of a material with a relatively high hardness, such as a metal or an alloy. The first structural member 321 and the belt 31 may be fixedly connected by a fastener such as a screw. Thus, the first structural member 321 is beneficial to improving the structural rigidity of the track strip 32 by adopting a harder material, so that the bearing performance of the track assembly 30 is improved.

Illustratively, the second structural member 322 may be made of a material having a relatively low hardness such as rubber. Therefore, the anti-skid performance of the second structural member 322 is improved, and a certain vibration reduction effect can be achieved, so that the use experience of a user moving on the track assembly 30 is improved.

Further, the upper side surface of the second structural member 322 may be provided with a slip-preventing pattern, which may be composed of a plurality of grooves or protrusions of a preset shape. Thereby, the anti-slip performance of the second structural member 322 can be further improved.

In one embodiment, as shown in fig. 10, a side of the first structural member 321 facing the belt 31 is provided with a structural reinforcement 323, and the thickness of the structural reinforcement 323 gradually decreases in a direction from the middle region to both ends.

Illustratively, the structural reinforcement 323 is plate-shaped and fixedly coupled to a surface of the first structural member 321 facing the belt 31 side by a fastener. The underside surface of the structural reinforcement 323 extends downward and in an arcuate direction in a direction from the intermediate region to the end.

Through the embodiment, the structural strength of the first structural member 321 is improved, so that the bearing performance of the track 32 is improved, and the bearing weight of the single track 32 can reach 360-400 kg through testing.

In one embodiment, as shown in fig. 11 and 12, each of the front roller assembly 21 and the rear roller assembly 22 includes a roller 211 and rollers 212 connected to both ends of the roller 211, the rollers 212 include a wheel body 2121 and an anti-slip cover 2122 fitted over the wheel body 2121, and an inner side surface of the belt 31 is in surface contact with an outer side surface of the anti-slip cover 2122.

Wherein, anti-slip sleeve 2122 can adopt soft material such as rubber, has better frictional resistance for supply belt 31 cover to locate the outside surface of anti-slip ring, reduces the probability that takes place to skid between belt 31 and the preceding cylinder subassembly 21, improves transmission efficiency.

In one embodiment, the belt 31 includes a body and at least one metal core embedded inside the body and extending in a circumferential direction of the body.

Illustratively, the body may be of a soft material such as polyurethane or the like. The metal wire core can be made of any kind of metal, and can be specifically a steel wire core. The plurality of metal wire cores can be embedded in the body and uniformly distributed, and the steel wire cores can be in an annular shape which is connected end to end. Thereby, the toughness of the belt 31 is improved, the probability of breakage of the belt 31 is reduced, and thus the durability of the track assembly 30 is improved.

In one embodiment, as shown in fig. 13, the treadmill 1 further includes a resistance adjustment mechanism 50. Specifically, the resistance adjusting mechanism 50 includes a magnetic member set 51, a metal disc 52, and a resistance transmission wheel 53, the position of the magnetic member set 51 relative to the metal disc 52 is adjustable, the magnetic field lines generated by the magnetic member set 51 are cut by the metal disc 52 to apply resistance to the metal disc 52 opposite to the rotation direction thereof, the metal disc 52 is in transmission connection with the resistance transmission wheel 53 through a first transmission belt 54, the resistance transmission wheel 53 is in transmission connection with the front roller assembly 21 through a second transmission belt 55, and the resistance transmission wheel 53 is rotatably provided to the seat 11 through a one-way bearing.

Illustratively, the magnetic element group 51 includes a plurality of magnetic elements arranged in groups, which may be symmetrically distributed on both sides of the metal disk 52. The magnetic component set 51 is disposed at the fixing portion, and the fixing portion is rotatably connected to the base 11, so as to realize movable connection between the magnetic component set 51 and the base 11. The metal disc 52 may be an aluminum disc, and during rotation of the metal disc 52, magnetic field lines in the magnetic field generated by the magnetic element group 51 may be cut, so that a magnetic force opposite to the rotation direction of the metal disc 52 is generated. The magnetic force acting on the metal disc 52 is sequentially transmitted to the front roller assembly 21 through the first transmission belt 54, the resistance transmission wheel 53 and the second transmission belt 55, so that the resistance acting on the front roller assembly 21 forms a certain resistance acting on the operation of the track assembly 30 in the process of running the user to drive the track assembly 30 to operate, and the resistance acting is fed back to the user.

Illustratively, the front roller assembly 21 further includes a drag engagement wheel 213, the drag engagement wheel 213 being in driving engagement with the drag transfer wheel 53 by the second drive belt 55.

In a specific example, the first transmission belt 54 is sleeved on the rotating shaft of the metal disc 52 and the outer circumferential wall of the resistance transmission wheel 53, and the second transmission belt 55 is sleeved on the rotating shaft of the resistance transmission wheel 53 and the outer circumferential wall of the resistance matching wheel 213 of the front drum assembly 21, so that the transmission ratio can be increased, and the damping effect on the rotation process of the front drum assembly 21 can be increased.

The resistance transmission wheel 53 is rotatably disposed on the base 11 through a one-way bearing, so that the resistance transmission wheel 53 rotates in a one-way direction. The preset direction may be a direction in which the drag transmission wheel 53 is rotated when the track assembly 30 is operated. For example, during running by the user, the track assembly 30 rotates in the counterclockwise direction in the drawing, and the running direction of the front roller assembly 21 is also the counterclockwise direction as the running direction of the track assembly 30, and the rotation direction of the resistance transmission wheel 53 is opposite to the rotation direction of the front roller assembly 21, i.e., the preset direction of the resistance transmission wheel 53 may be set to be the clockwise direction.

In one embodiment, as shown in fig. 14 and 15, the resistance adjustment mechanism 50 further includes an adjustment handle 56. Specifically, the adjusting handle 56 includes a grip 561, a gear adjusting block 562, an elastic member 563, a gear post 564, a gear piece 565 and a traction rope 566, where the grip 561 is fixedly connected with the gear adjusting block 562, the gear post 564 is movably disposed on the gear adjusting block 562 through the elastic member 563, the gear piece 565 is provided with a plurality of through holes, the gear adjusting block 562 is adapted to rotate to different angles under the driving of the grip 561, so that the gear post 564 is clamped on any through hole on the gear piece 565, one end of the traction rope 566 is connected to the gear adjusting block 562, the other end of the traction rope 566 is connected to the magnetic member group 51, and the traction rope 566 is adapted to pull the magnetic member group 51 to move relative to the metal disc 52 under the rotation of the grip 561.

Illustratively, the adjustment handle 56 may be provided on a sidewall of either riser 41 of the armrest assembly 40. The handle 561 is used for a user to apply an external force to drive the handle 561 to rotate. The handle 561 is fixedly connected with the gear adjusting block 562 through fasteners such as screws, so that the handle 561 can drive the gear adjusting block 562 to rotate together. The gear post 564 is telescopically arranged on the gear adjusting block 562 through the elastic piece 563, that is, the gear post 564 can realize automatic reset through the elastic action of the elastic piece 563. The elastic member 563 may be a compression spring. The shift lever 565 is provided with a plurality of through holes distributed at intervals along the circumferential direction, and the shape and size of the through holes are matched with those of the shift lever 564, so that the shift lever 564 can be clamped in the through holes. It will be appreciated that the plurality of through holes in the gear stage 565 are disposed corresponding to different positions of the magnetic element assembly 51, i.e., the plurality of through holes correspond to different resistance gears, respectively. The gear adjusting block 562 is rotationally connected with the gear piece 565, and the gear adjusting block 562 rotates relative to the gear piece 565 under the drive of the handle 561, so that the gear column 564 can form clamping fit with different through holes, and further adjustment of different resistance gears is achieved.

In one example, the pull cord 566 may further include a first pull segment 5661 and a second pull segment 5662, the first pull segment 5661 being coupled to the shift adjustment block 562 of the adjustment handle 56, the second pull segment 5662 being coupled to the magnetic stack 51, and the first pull segment 5661 being coupled to the second pull segment 5662 via a snap fit connection.

The gear adjusting block 562 is provided with a fixed shaft, the end part of the traction rope 566 is fixed on the fixed shaft, and the gear adjusting block 562 can rotate under the drive of the handle 561, so that the traction rope 566 winds the fixed shaft, the stretching effect of the traction rope 566 is realized, the traction rope 566 can pull the magnetic element group 51 to move, the position of the magnetic element group 51 relative to the metal disc 52 is adjusted, and the purpose of adjusting the resistance of the resistance adjusting mechanism 50 is realized.

In one embodiment, as shown in fig. 16, the treadmill 1 further includes a handrail assembly 40. Specifically, the armrest assembly 40 includes two risers 41 and two first armrest portions 42, the two risers 41 are respectively disposed on two sides of the width direction of the running deck 10, the two first armrest portions 42 are respectively connected to the two risers 41, the first armrest portions 42 include a first holding section 421 formed by bending, a first connecting section 422 and a second holding section 423, the first connecting section 422 is connected to an upper end of the risers 41, the first holding section 421 is formed by bending a front end of the first connecting section 422 upward, and the second holding section 423 is formed by bending a rear end of the first connecting section 422 downward.

Illustratively, the two risers 41 are disposed in a vertical direction or in an oblique direction at a small angle to the vertical direction. The small angle included may be 0 to 15 degrees. For example, in the illustration, two risers 41 extend obliquely forward in a bottom-to-top direction relative to the vertical.

Two first armrest portions 42 are respectively connected to the upper ends of the risers 41. The first connection section 422 is disposed along an inclined direction parallel to the horizontal direction or at a small angle, and the front and rear ends of the first connection section 422 are located at the front and rear sides of the stand pipe 41 in the front and rear direction of the seat body 11, respectively. The small angle included may be 0 to 15 degrees. The first grip section 421 is connected to the front side of the first connection section 422, and extends obliquely in an upward direction. More specifically, the first grip section 421 extends obliquely to the rear side in the bottom-up direction, and the angle of inclination of the extending direction of the first grip section 421 with respect to the horizontal direction may be 60 to 90 degrees.

The second grip section 423 is formed by bending a rear side of the first connection section 422 downward. More specifically, the second grip section 423 may include two connected extension sections, a first extension section extending downward from the rear end of the first connection section 422, a second extension section connected to and extending forward from the lower end of the first extension section, and a front end of the second extension section abutting against the riser 41.

In the embodiment of the present utility model, the first armrest portion 42 may be an integrally formed piece or may be separate pieces. For example, the first handle portion 42 may be formed by bending the pipe body a plurality of times to form the first connection section 422, the first grip section 421, and the second grip section 423, respectively. As another example, the first grip section 421, the first connection section 422, and the second grip section 423 of the first armrest section 42 may be separately formed and then assembled as one body.

It will be appreciated that the location of the second grip section 423 is located on the front side of the first grip section 421 and on the underside of the first grip section 421, thereby enabling different grip options to be provided to the user.

Through the above embodiment, the first handrail portion 42 can provide the first holding section 421 and the second holding section 423 in different positions for the user to hold when using the running machine 1, thereby satisfying different use requirements of the user and improving the use experience of the user.

In one embodiment, the armrest assembly 40 further includes a second armrest portion 43, where the second armrest portion 43 includes two second connection sections 431 formed by bending, two third holding sections 432, and a third connection section 433, rear ends of the two second connection sections 431 are respectively connected to a front side of the riser 41, the two third holding sections 432 are respectively formed by bending front ends of the second connection sections 431 upward, and the third connection section 433 is connected between upper ends of the two third holding sections 432.

Illustratively, the second armrest portion 43 is connected to two risers 41. The two second connection sections 431 are respectively connected to the side walls of the riser 41 and extend forward in an inclined direction parallel to the horizontal direction or forming a small angle with the horizontal direction. The small angle included may be 0 to 10 degrees. The two third holding sections 432 are respectively connected to the front ends of the two second connecting sections 431, and extend upwards along the vertical direction or along the inclined direction forming a small angle with the vertical direction from the front end of the second connecting end, wherein the small angle may be 0 to 10 degrees. The third connecting section 433 is connected to the upper ends of the two third grip ends. The third connecting section 433 is adapted to mount a display device that may be used to display relevant parameters of the treadmill 1, such as exercise mode, exercise parameters, etc. Further, the display device may also allow the user to input control instructions to control switching of exercise modes of the treadmill 1, adjusting exercise parameters, and the like.

It will be appreciated that the location of the third grip section 432 is located on the front side of the second grip section 423 and on the underside of the first grip section 421, thereby enabling more grip options to be provided to the user.

Other configurations of the treadmill 1 of the above-described embodiments may be applied to various technical solutions now and in the future known to those skilled in the art, and will not be described in detail herein.

In the description of the present specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The above disclosure provides many different embodiments, or examples, for implementing different structures of the utility model. The foregoing description of specific example components and arrangements has been presented to simplify the present disclosure. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that various changes and substitutions are possible within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (13)

1. A treadmill, comprising:

the running platform comprises a seat body and an arc-shaped supporting plate arranged on the seat body;

the transmission assembly comprises a front roller assembly and a rear roller assembly, and the front roller assembly and the rear roller assembly are arranged at intervals in the length direction of the seat body;

the crawler belt assembly comprises a plurality of crawler belt strips, a belt and a supporting wheel set, wherein the crawler belt strips are fixed on the belt, the belt is sleeved on the front roller assembly and the rear roller assembly to form transmission fit, the inner side surface of the belt is provided with guide protrusions, the supporting wheel set comprises guide wheels, the guide wheels are rotatably arranged between the belt and the arc-shaped supporting plate, and the guide protrusions and the guide wheels form limit fit so as to limit the belt in the width direction of the running platform.

2. The treadmill of claim 1, wherein the guide wheel comprises a shaft body and two limiting plates oppositely arranged in the axial direction of the shaft body, and a limiting groove is defined between the two limiting plates; the guide protrusion extends along the circumferential direction of the belt, and is provided with two guide surfaces opposite to each other in the width direction of the belt, and the two guide surfaces are respectively in surface contact with the inner side surfaces of the two limiting plates.

3. The treadmill of claim 2, wherein the guide surface of the guide protrusion is inclined with respect to the inner side surface of the belt at an angle of 60 degrees to 80 degrees.

4. The treadmill of claim 1, wherein a plurality of the guide wheels are spaced apart in a length direction of the arcuate support plate; the supporting wheel set further comprises a plurality of rollers rotatably arranged between the belt and the arc-shaped supporting plate, and at least one roller is arranged between two adjacent guide wheels.

5. The treadmill of claim 1, wherein the belt comprises a body and at least one metal wire core embedded within the body and extending circumferentially of the body.

6. The treadmill of claim 1, wherein the portion of the track assembly corresponding to the arcuate support plate is arcuate, the arcuate having a diameter of 3600 to 4000 millimeters and an arc of 0.70-0.85.

7. The treadmill of claim 1, wherein the track comprises a first structural member connected to the belt and a second structural member connected to the first structural member on a side of the first structural member facing away from the belt; the hardness of the material of the second structural member is smaller than that of the material of the first structural member.

8. The treadmill of claim 7, wherein a side of the first structural member facing the belt is provided with a structural reinforcement, the thickness of the structural reinforcement gradually decreasing in a direction from the middle region to the two ends.

9. The treadmill of claim 1, further comprising:

the handrail assembly comprises two vertical pipes and two first handrail parts, wherein the two vertical pipes are respectively arranged on two sides of the width direction of the running platform, the two first handrail parts are respectively connected with the two vertical pipes, each first handrail part comprises a first holding section, a first connecting section and a second holding section which are formed by bending, each first connecting section is connected with the upper end of the corresponding vertical pipe, each first holding section is formed by upward bending of the front end of each first connecting section, and each second holding section is formed by downward bending of the rear end of each first connecting section.

10. The treadmill of claim 9, wherein the armrest assembly further comprises:

the second handrail portion comprises two second connecting sections, two third holding sections and third connecting sections, wherein the second connecting sections, the two third holding sections and the third connecting sections are formed by bending, the rear ends of the two second connecting sections are respectively connected to the front side of the vertical pipe, the two third holding sections are respectively formed by respectively bending the front ends of the second connecting sections upwards, and the third connecting sections are connected between the upper ends of the two third holding sections.

11. The treadmill of any one of claims 1-10, wherein the front roller assembly and the rear roller assembly each comprise a roller and rollers connected to both ends of the roller, the rollers comprise a wheel body and an anti-slip sleeve sleeved on the wheel body, and an inner side surface of the belt is in surface contact with an outer side surface of the anti-slip sleeve.

12. The treadmill of any one of claims 1-10, further comprising:

the resistance adjusting mechanism comprises a magnetic part group, a metal disc and a resistance transfer wheel, wherein the position of the magnetic part group relative to the metal disc is adjustable, a magnetic field line generated by the magnetic part group is cut by the metal disc so as to apply resistance opposite to the rotation direction of the metal disc, the metal disc is in transmission connection with the resistance transfer wheel through a first transmission belt, the resistance transfer wheel is in transmission connection with the front roller assembly through a second transmission belt, and the resistance transfer wheel is rotatably arranged on the base through a one-way bearing.

13. The treadmill of claim 12, wherein the resistance adjustment mechanism further comprises: the adjusting handle comprises a handle, a gear adjusting block, an elastic piece, a gear column, a gear sheet and a traction rope, wherein the handle is fixedly connected with the gear adjusting block, the gear column is movably arranged on the gear adjusting block through the elastic piece, the gear sheet is provided with a plurality of through holes, the gear adjusting block is driven by the handle to rotate to different angles, so that the gear column is clamped on the different through holes on the gear sheet, one end of the traction rope is connected with the gear adjusting block, the other end of the traction rope is connected with the magnetic piece group, and the traction rope is suitable for traction of the magnetic piece group relative to the metal disc under rotation of the handle.