CN106861128B - Synchronizing assembly and fitness equipment - Google Patents

Abstract

The invention discloses a synchronizing assembly and body-building equipment. The synchronous assembly comprises a rack, a synchronous shaft and two synchronous wheels with opposite rotating directions, the synchronous shaft and the synchronous wheels are rotatably arranged on the rack, two ends of the synchronous shaft are respectively provided with a driving wheel, a first synchronous belt is arranged between one driving wheel and the synchronous wheel on the corresponding side, and a second synchronous belt is arranged between the other driving wheel and the synchronous wheel on the corresponding side; the first synchronous belts are wound between the corresponding driving wheels and the corresponding synchronous wheels in the same winding direction, and the second synchronous belts are wound between the corresponding driving wheels and the corresponding synchronous wheels in the opposite winding direction. The synchronous belts corresponding to the synchronous wheels in the opposite selection directions are matched to realize pedaling synchronization, so that the requirement of pedaling synchronous anisotropic motion can be well met, and the experience of a sporter of the fitness equipment is improved by adopting the mode of matching the synchronous belts with the synchronous wheels.

Description

Synchronizing assembly and fitness equipment

Technical Field

The invention relates to fitness equipment, in particular to a synchronizing assembly and fitness equipment.

Background

At present, with the improvement of living standard of people, people pay more and more attention to their health, various fitness equipments are developed and marketed, the common fitness equipments on the market include elliptical machines, mountain climbers, body type machines and the like, and the fitness equipment with pedals such as elliptical machines, mountain climbers or body type machines is generally provided with a device for realizing synchronization of left and right pedals, the chinese patent no: 201080026684.2 discloses an exercise device with flexible elements, which can realize the up-and-down movement and the back-and-forth movement of the feet, the technical proposal disclosed by the patent mentioned above, the left and the right pedals are linked with each other through corresponding connecting ropes, and the left and the right pedals are linked with each other through corresponding connecting ropes to realize the synchronization. However, the limitation of the length of the connecting rope causes the pedal to swing back and forth in a small amplitude, which results in poor experience of the sporter. The invention aims to solve the technical problem of how to design the fitness equipment with better experience of sporters.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provided are a synchronizing assembly and exercise equipment, which improve the experience of a sporter of the exercise equipment.

The technical scheme provided by the invention is that the synchronizing assembly comprises a rack, a synchronizing shaft and two synchronizing wheels with opposite rotating directions, wherein the synchronizing shaft and the synchronizing wheels are rotatably arranged on the rack; the first synchronous belts are wound between the corresponding transmission wheels and the corresponding synchronous wheels in the same winding direction, and the second synchronous belts are wound between the corresponding transmission wheels and the corresponding synchronous wheels in the opposite winding direction.

Furthermore, the first synchronous belt and the second synchronous belt are respectively fixed on the corresponding synchronous wheels.

Furthermore, the outer circumference of the driving wheel is of a gear structure, and the first synchronous belt and the second synchronous belt are toothed belt belts.

Furthermore, a synchronous adjusting assembly is arranged on the synchronizing wheel and comprises an adjusting support, two positioning blocks and two adjusting bolts, the two positioning blocks are arranged on the adjusting support in a back-to-back mode and are arranged on the adjusting support in a sliding mode respectively, inserting grooves used for positioning the rack belts are formed in the positioning blocks, tooth structures are formed in the inserting grooves, and the adjusting bolts are connected to corresponding end portions of the adjusting support in a threaded mode and abut against the positioning blocks.

Furthermore, the adjusting support is of a pipeline structure, the positioning blocks are arranged in the pipeline structure in a sliding mode, sockets are arranged at two ends of the adjusting support respectively, detachable baffles are arranged in the sockets, threaded holes are formed in the baffles, the two positioning blocks are located between the two baffles, and the adjusting bolts are connected in the threaded holes in a threaded mode.

Furthermore, the positioning block is also provided with a positioning blind hole, and the end part of the adjusting bolt is inserted into the corresponding positioning blind hole.

Furthermore, still be provided with the limiting plate on the synchronizing shaft, still be provided with in the frame with limiting plate complex spacing wheel, the edge of limiting plate forms circular arc guide part and two spacing portions that warp, circular arc guide part is located two between the spacing portion.

The invention also provides fitness equipment which comprises two pedal assemblies, wherein each pedal assembly comprises a pedal and a rear swing arm connected with the pedal, and the fitness equipment also comprises the synchronous assembly; the upper end part of the rear swing arm and the corresponding synchronizing wheel in the synchronizing assembly are coaxially arranged and rotatably arranged on a rack in the synchronizing assembly.

Furthermore, the pedal assembly further comprises a support rod, a front swing arm and a connecting rod mechanism, the connecting rod mechanism comprises a crank, a connecting rod and a rocker which are sequentially hinged together, the rocker is hinged to the rack, the pedal is mounted at the rear end of the support rod, the lower end of the rear swing arm is hinged to the middle of the support rod, the lower end of the front swing arm is hinged to the front end of the support rod, and the upper end of the front swing arm is hinged to the rocker; the frame is provided with a rotatable main shaft, and the two cranks are fixed at the corresponding end parts of the main shaft; the fitness equipment further comprises a first damper and a second damper, the main shaft is connected with the first damper, and the synchronizing shaft is connected with the second damper.

Furthermore, the body-building equipment also comprises a height adjusting assembly, wherein the height adjusting assembly comprises a rotating frame, a guide rod, a sliding piece and a driving mechanism for driving the rotating frame to rotate, the rotating frame is hinged to the rack, the guide rod is hinged to the rack, the sliding piece is slidably arranged on the guide rod, the rocker is hinged to the rotating frame, the upper end part of the front swing arm is hinged to the guide rod, and the sliding piece is hinged to the rocker.

Compared with the prior art, the invention has the advantages and positive effects that: according to the synchronizing assembly and the body-building equipment provided by the invention, the synchronization of the pedals is realized by matching the two synchronizing wheels with opposite selection directions with the corresponding synchronizing belts, so that the requirements of synchronous and anisotropic movement of the pedals can be well met, and the swinging amplitude of the pedals can be furthest increased and the stroke range of the pedals can be enlarged by matching the synchronizing belts with the synchronizing wheels, so that the requirements of different sporters on the amount of exercise can be met, and the sporter experience of the body-building equipment can be improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of an embodiment of the exercise apparatus of the present invention

FIG. 2 is a perspective view of an embodiment of the exercise apparatus of the present invention;

FIG. 3 is an exploded view of an embodiment of the exercise apparatus of the present invention;

FIG. 4 is an exploded view of a synchronizing assembly in an embodiment of the exercise apparatus of the present invention;

FIG. 5 is an assembly view of the rack belt and synchronization adjustment assembly of the embodiment of the exercise apparatus of the present invention;

FIG. 6 is a first view of the exercise apparatus embodiment of the present invention showing the use of the pedals;

FIG. 7 is a view of the exercise apparatus of the present invention showing the use state of the pedals;

FIG. 8 is a view of the use state of the foothold of the embodiment of the exercise apparatus of the present invention with reference to FIG. three;

FIG. 9 is an assembly view of the footrest and the supporting bar in the embodiment of the exercise apparatus of the present invention.

FIG. 10 is a front view of another embodiment of the exercise apparatus of the present invention;

FIG. 11 is a rear elevational view of another embodiment of the exercise apparatus of the present invention;

FIG. 12 is a first perspective view of another embodiment of the exercise apparatus of the present invention;

FIG. 13 is a second perspective view of another embodiment of the exercise apparatus of the present invention;

figure 14 is an exploded view of another embodiment of the exercise apparatus of the present invention.

Figure 15 is an assembly view of the guide bar and slider in another embodiment of the exercise apparatus of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a synchronizing assembly which comprises a rack, a synchronizing shaft and two synchronizing wheels with opposite rotating directions, wherein the synchronizing shaft and the synchronizing wheels are rotatably arranged on the rack; the first synchronous belts are wound between the corresponding transmission wheels and the corresponding synchronous wheels in the same winding direction, and the second synchronous belts are wound between the corresponding transmission wheels and the corresponding synchronous wheels in the opposite winding direction. The frame can be used as a frame in public fitness equipment, pedals are correspondingly arranged on the two synchronizing wheels through the swinging arms, the swinging arms rotate along with the synchronizing wheels, and the following description is given by taking the synchronizing assembly applied to specific fitness equipment as an example in combination with the attached drawings.

As shown in fig. 1-5, the exercise device of the present embodiment includes a frame 1, a synchronizing assembly 2 and two pedal assemblies 3, wherein the two pedal assemblies 3 are arranged on the frame 1;

the pedal assembly 3 comprises a pedal 31, a support rod 32, a rear swing arm 33, a front swing arm 34 and a link mechanism 35, wherein the link mechanism 35 comprises a crank 351, a connecting rod 352 and a rocker 353 which are sequentially hinged together, the rockers 353 are respectively hinged on the rack 1, the pedal 31 is installed at the rear end part of the support rod 32, the lower end part of the rear swing arm 33 is hinged at the middle part of the support rod 32, the lower end part of the front swing arm 34 is hinged at the front end part of the support rod 32, and the upper end part of the front swing arm 34 is hinged on the rocker 353; a rotatable main shaft 11 is arranged on the frame 1, and the two cranks 351 are fixed at the corresponding ends of the main shaft 11;

the synchronizing assembly 2 comprises a synchronizing shaft 21 and two synchronizing wheels 22 with opposite rotating directions, the synchronizing shaft 21 is rotatably installed on the rack 1, the two synchronizing wheels 22 are respectively in transmission connection with the synchronizing shaft 21, the synchronizing wheels 22 are arranged at the upper end parts of the rear swing arms 33 correspondingly, and the upper end parts of the rear swing arms 33 and the corresponding synchronizing wheels 22 are coaxially arranged and rotatably installed on the rack 1.

Specifically, the support rod 32 with the pedals 31 installed therein in the exercise apparatus of the present embodiment is suspended by the rear swing arm 33 and the front swing arm 34, wherein, in the actual use process, the lengths of the rear swing arm 33 and the front swing arm 34 are not changed, so that each pedal 31 can obtain a large enough movement space, and at the same time, the situation that the stress variation of the exerciser in the stepping process is too large due to the length variation of the force arm of the pedal 31 can be reduced. More importantly, the upper end of the front swing arm 34 is hinged to the rocker 353 of the link mechanism 35, the up-and-down movement of the pedal 31 is limited by the link mechanism 35, the link mechanism 35 can effectively guide the movement track of the front swing arm 34, the up-and-down movement and the back-and-forth movement of the pedal 31 are not affected by each other, and the smooth and soft operation of the fitness equipment is ensured. In addition, the pedal assemblies 3 arranged on the left and right of the frame 1 ensure synchronous operation through the synchronizing assembly 2, so that the pedals 31 on one side move downwards synchronously while the pedals 31 on the other side move downwards, meanwhile, the two ends of the main shaft 11 can further play a role in synchronization through being connected with the corresponding cranks 351, and the stepping movement is ensured to be softer and smoother. In order to obtain damping during exercise, the exercise device of this embodiment further includes a first damper 101 and a second damper 102, the main shaft 11 is connected to the first damper 101, the synchronizing shaft 21 is connected to the second damper 102, during stepping exercise of the exerciser, the back and forth movement of the pedals 31 will drive the second damper 102 to operate through the synchronizing shaft 21, and the up and down movement of the pedals 31 will drive the first damper 101 to operate through the main shaft 11, while the first damper 101 and the second damper 102 may be in the form of dampers commonly used in the exercise devices in the prior art, for example: friction dampers, electromagnetic dampers, and the like; meanwhile, according to design requirements, the main shaft 11 and/or the synchronizing shaft 21 are further connected with an inertia wheel 10, wherein, taking the case that the main shaft 11 is connected with the inertia wheel 10 as an example, the inertia wheel 10 can be directly connected with the main shaft 11 or can be connected with the main shaft 11 in an indirect connection mode. Preferably, an armrest 331 is further provided at an upper end of the rear swing arm 33 to facilitate a hand-holding of a sportsman.

The specific use process of the exercise device of the embodiment is as follows:

firstly, the up-down motion realization process of the stepping motion of a sporter, wherein the foot of the sporter steps on the pedal 31 to apply downward thrust, the force is transmitted to the front swing arm 34 through the supporting rod 32, the front swing arm 34 transmits the upward thrust to the rocker 353 through the rotating shaft of the front swing arm, the rocker 353 transmits the upward thrust to the connecting rod 352, the connecting rod 352 transmits the upward tension to the crank 351, the other end of the crank 351 is tightly matched and connected with the main shaft 11, and the main shaft 11 directly or indirectly drives the first damper 101 to operate; because one end of the crank 351 is fixed on the main shaft 11, and one end of the crank 351 is pulled upwards by the connecting rod 352, the crank 351 rotates clockwise around the main shaft 11, and because the two ends of the main shaft 11 are tightly matched and connected with the two cranks 351, the crank 351 at one end of the main shaft 11 rotates to drive the crank 351 at the other end to rotate symmetrically, so that the pedal assembly 3 at the other side of the rack 1 moves symmetrically, the foot at the other side of a sporter is lifted, and the up-and-down action of the stepping motion is realized. In addition, the inertia design of the superposition combination of the inertia of the first damper 101 and the inertia wheel 10 makes the up-and-down movement of the stepping movement of the exerciser have no pause, and the stepping movement is softer and smoother.

Secondly, the process of realizing the forward and backward movement of the stepping movement of the sporter, the rear swing arms 33 and the corresponding synchronizing wheels 22 are fixed on the same shaft and are rotatably installed on the frame 1 through the shaft, meanwhile, the front swing arms 34 are hung on the rocker 353 to move forward and backward, the support rods 32 are connected on the rear swing arms 33 and the front swing arms 34 to form a connecting rod structure similar to a parallelogram, and the pedals 12 are connected through the support rods 32 to move forward and backward. The other side of the frame 1 is symmetrically designed with the same structure, and the pedals 31 on the left and right sides can reversely and synchronously move under the action of the synchronous component 2, thereby realizing the movement of stepping before and after the stepping movement of a sporter. In addition, the inertia of the second damper 102 is utilized to make the back and forth movement of the stepping movement of the exerciser have no pause, so that the stepping movement is softer and smoother.

It can be known from the above that, except that the connecting rod mechanism 35 itself is the connecting rod structure, the supporting rod 32, the rear swing arm 33 and the front swing arm 34 of the pedal assembly 3 also form the connecting rod structure, and two sets of connecting rod structures can be utilized to ensure that the pedal 31 can simultaneously move up and down and back and forth, and can also ensure the large-amplitude movement and the stress balance of the pedal 31, thereby effectively improving the experience of a sporter.

Further, the connection manner between the synchronizing shaft 21 and the synchronizing wheel 22 in the synchronizing assembly 2 in this embodiment may adopt a conventional synchronizing structure in the existing fitness equipment, preferably, two end portions of the synchronizing shaft 21 are respectively provided with a transmission wheel 23 and a transmission wheel 24, a first synchronizing belt 25 is arranged between the transmission wheel 23 and the synchronizing wheel 22 on the corresponding side, and a second synchronizing belt 26 is arranged between the other transmission wheel 24 and the synchronizing wheel 22 on the corresponding side; the first timing belts 25 are wound in the same winding direction between the corresponding driving pulley 23 and the timing pulley 33, and the second timing belts 26 are wound in the opposite winding direction between the corresponding driving pulley 24 and the timing pulley 22. Specifically, since the pedals 31 on the left and right sides move in opposite directions, the first timing belt 25 is wound around the corresponding transmission wheel 23 and the corresponding timing wheel 33 in the same winding direction, so that the transmission wheel 23 and the corresponding timing wheel 33 rotate in the same direction, and the second timing belt 26 is wound around the corresponding transmission wheel 24 and the corresponding timing wheel 33 in the opposite winding direction, so that the transmission wheel 24 and the corresponding timing wheel 33 rotate in opposite directions, thereby satisfying the requirement of synchronous but reverse movement of the pedals 31 on the left and right sides. In order to improve the synchronization consistency, the outer circumferences of the synchronizing wheel 33, the transmission wheel 23 and the transmission wheel 24 are all in gear structures, and the first synchronous belt 25 and the second synchronous belt 26 are both toothed belt belts; alternatively, the first timing belt 25 and the second timing belt 26 may be fixed to the corresponding timing wheels 33, respectively, so that it is only necessary to provide the outer circumferences of the driving wheel 23 and the driving wheel 24 as gear structures. Preferably, a synchronous adjusting assembly 27 is arranged on the synchronizing wheel, the synchronous adjusting assembly 27 includes an adjusting bracket 271, two positioning blocks 272 and two adjusting bolts 273, the two positioning blocks 272 are oppositely arranged and respectively slidably arranged on the adjusting bracket 271, an insertion slot 270 for positioning the rack belt is formed in the positioning block 272, a tooth structure is formed in the insertion slot 270, and the adjusting bolts 273 are threadedly connected to corresponding ends of the adjusting bracket 271 and abut against the positioning blocks 272. Specifically, in the assembling process, two end portions of the fixed rack belt can be correspondingly connected through two positioning blocks 272, taking the first synchronous belt 25 as an example, the two end portions of the first synchronous belt 25 are correspondingly inserted into the slots 270 from the side surfaces of the positioning blocks 272, teeth of the first synchronous belt 25 are meshed with tooth structures in the slots 270, so that the first synchronous belt 25 can be prevented from being separated from the slots 270, the positioning blocks 272 can slide on the adjusting bracket 271, and by simultaneously rotating the two adjusting bolts 272, the adjusting bolts 272 abut against the positioning blocks 272 to drive the positioning blocks 272 to move on the adjusting bracket 271, so as to change the positions of the positioning blocks 272, and thus the relative positions of the two pedals 31 can be adjusted according to needs. Wherein, the adjusting bracket 271 is a pipe structure, the positioning block 272 is slidably disposed in the pipe structure, the two ends of the adjusting bracket 271 are respectively provided with a socket (not marked), in which a detachable baffle 274 is provided, threaded holes (not marked) are formed in the baffle plates 274, the two positioning blocks 272 are positioned between the two baffle plates 274, adjusting bolt 273 threaded connection in the screw hole, adopt pipeline structure to adjust support 271 can be effectual carry on spacingly to the opening of slot 270 of locating piece 272, avoid taking place to warp at slot 270 and lead to the too big rack area of opening to break away from by rack area pulling force, locating piece 272 is placed in the pipeline that adjusts support 271 formed, can avoid slot 270 opening too big on the one hand, and on the other hand locating piece 272 slides in the pipeline and can make things convenient for the sporter to adjust, has improved use reliability and convenience. The positioning block 272 is further provided with a positioning blind hole 2721, the end of the adjusting bolt 273 is inserted into the corresponding positioning blind hole 2721, and the end of the adjusting bolt 273 is positioned through the positioning blind hole 2721. In addition, in order to limit the swing amplitude of the pedal 31, a limit plate 28 is further disposed on the synchronizing shaft 21, a limit wheel 12 matched with the limit plate 28 is further disposed on the frame 1, an arc guide portion 281 and two upturned limit portions 282 are formed at the edge of the limit plate 28, the arc guide portion 281 is located between the two limit portions 282, when the pedal 31 moves within a normal range, the arc guide portion 281 contacts with the limit wheel 12, the upturned limit portions 282 contact with the limit wheel 12 in the process that the pedal 31 gradually moves to a limit position, and finally the maximum stroke position of the pedal 31 is limited by the cooperation of the gradually upturned limit portions 282 and the limit wheel 12.

Further, in order to obtain the maximum exercise requirement to meet the needs of different exercisers, as shown in fig. 6-8, the upper surface of the foothold 31 is a cambered surface structure 310. Specifically, the upper surface of the pedal 31 adopts the arc-shaped structure 310, so that in the actual use process, the positions of the sporter standing on the pedal 31 are different, and in the body building process, the swing angles of the joints of the feet are different, so that different requirements on the amount of exercise can be obtained, and the upper surface of the pedal 31 can be a convex arc-shaped structure or a concave arc-shaped structure. Referring to fig. 8-10, the foot of the exerciser adopts A, B, C different positions on the pedal 31, and the angle formed between the lower leg and the foot surface of the exerciser is different, so that different amounts of exercise can be obtained. Preferably, in order to improve the comfort of the sporter, as shown in fig. 9, a shaft hole (not marked) is provided at the front portion of the foothold 31, a shock absorbing hole (not marked) is provided at the rear portion of the foothold, a shock absorbing sleeve 311 is provided in the shock absorbing hole, a first mounting shaft 321 and a second mounting shaft 322 are provided at the rear end portion of the support bar 32, the first mounting shaft 321 is provided in the shaft hole, and the second mounting shaft 322 is provided in the shock absorbing sleeve 311. Specifically, the pedals 31 can rotate with a certain amplitude through the first mounting shaft 321, and the rear part of the pedals 31 can obtain a good damping effect through the damping sleeve 311, so that when the sporter has an excessive motion amplitude and impacts the pedals 31, the impact force of the pedals 31 can be effectively reduced by using the damping sleeve 311 to protect the feet of the sporter. In order to adjust the damping force, a plurality of damping rings 3111 are formed on the outer portion of the damping sleeve 311 in the axial direction, and the damping sleeve 311 is axially movably disposed in the damping holes. Specifically, the depth that inserts the shock attenuation hole through adjusting shock attenuation cover 311 is different for the shock attenuation ring 3111 of different quantity enters into the shock attenuation hole, thereby can obtain the shock attenuation effect of different soft or hard degrees.

Still further, in order to ensure smooth use without dead points when the exerciser operates the exercise apparatus of the present embodiment, after the crank 351 of one of the link mechanisms 35 and the corresponding link 352 are located on the same straight line, the crank 351 of the other link mechanism 35 and the corresponding link 352 are arranged in a staggered manner. Specifically, when the left pedal 31 moves up and down to the lower limit position, the axis of the crank 351 in the left link mechanism 35 and the axis of the corresponding link 352 are located on the same straight line, and at this time, the right pedal 31 is located at the upper portion and does not reach the upper limit position, and the axis of the crank 351 in the right link mechanism 35 and the axis of the corresponding link 352 are arranged in a staggered manner, so that the exerciser can move smoothly only by pressing the right pedal 31. The above-mentioned limit condition usually occurs after the exerciser gets off from the exercise apparatus after exercising, one of the pedals 31 usually reaches the lower limit position, and when another exerciser uses the exercise apparatus again, the link mechanism 35 corresponding to the upper pedal 31 is not in the dead point position in the initial stage, so that the pedal 31 can be easily driven to operate, the occurrence of the exercise dead point is completely avoided, and the user experience is more effectively improved. According to design requirements, after the axes of the crank 351 and the corresponding connecting rod 352 in one of the connecting rod mechanisms 35 are located on the same straight line, the included angle formed between the axes of the two cranks 35 is 5-15 degrees. The included angle formed between the axes of the two cranks 35 can be adjusted through the synchronous adjusting assembly 27, specifically, the synchronous adjusting assembly 27 can adjust the position relationship between the two pedals 31, and before leaving the factory or in the using process, the initial position relationship between the two pedals 31 can be adjusted by adjusting the adjusting bolt 273, so as to adjust the size of the included angle formed between the axes of the two cranks 35.

Based on the above technical solution, optionally, as shown in fig. 10 to fig. 15, the exercise device of this embodiment further includes a height adjustment assembly 4 for adjusting the up-and-down movement stroke of the pedals 31, the height adjustment assembly 4 includes a rotating frame 41, a guide rod 42, a sliding member 43 and a driving mechanism 40 for driving the rotating frame 41 to rotate, the rotating frame 41 is hinged to the frame 1, the guide rod 42 is hinged to the frame 1, the sliding member 43 is slidably mounted on the guide rod 42, the rocker 353 is hinged to the rotating frame 41, the upper end of the front swing arm 34 is hinged to the guide rod 42, and the sliding member 43 is hinged to the rocker 353. Specifically, the front swing arm 34 is indirectly hinged to the rocker 353 through the guide rod 42 and the sliding member 43, the driving mechanism 40 drives the rotating frame 41 to rotate and can drive the sliding member 43 to move on the guide rod 42 through the rocker 353, so as to change the position of the sliding member 43 on the guide rod 42, and meanwhile, after the rotating frame 41 rotates, the height position of the hinged part of the rocker 353 and the rotating frame 41 is correspondingly changed, so that the limit position of the up-and-down movement of the pedal 31 can be adjusted, the effect of adjusting the up-and-down movement amplitude of the pedal 31 is realized, different leg lifting height adjustments of sporters are realized, and the fitness requirements of different sporters are met.

Further, there are various ways in which the sliding member 43 can slide on the guide rod 42, such as: the sliding piece 43 may be a sliding sleeve, the sliding sleeve is rotatably installed on the rocker 353, and the sliding sleeve is sleeved on the guide rod 42; preferably, in order to improve the sliding smoothness, the sliding member 43 includes a mounting frame 431 and three guide wheels rotatably mounted on the mounting frame, the mounting frame 431 may be composed of two opposite mounting plates 4310, and the mounting frame 431 is rotatably mounted on the rocker 353, wherein a sliding channel is formed between one of the guide wheels and the other two guide wheels, and the guide rod 42 is inserted in the sliding channel. In particular, three guide wheels are mounted between the two mounting plates 4310, and the sliding of the slider 43 with respect to the guide rod 42 is achieved by the rolling of the guide wheels on the guide rod 42.

In order to avoid the impact noise caused by the movement gap between the sliding member 43 and the guide rod 42, an elastic layer is disposed on the outer circumferential surface of the guide wheel, for example: the guide wheels can be wrapped with components with elastic buffering functions such as rubber layers and the like, after the guide wheels are arranged on the guide rod 42, the guide rod 42 is clamped between the three guide wheels, and the elastic layers deform under stress, so that the guide wheels can be ensured to clamp the guide rod 42 tightly all the time. Or, the guide wheel is divided into an adjustable guide wheel 432 and two positioning guide wheels 433, the two positioning guide wheels 433 are located on one side of the guide rod 42, the adjustable guide wheel 432 is located on the other side of the guide rod 42, a strip-shaped hole 4311 is formed in the mounting frame 431, the positioning guide wheels 433 are rotatably mounted on the mounting frame 431, a rotating shaft 4321 of the adjustable guide wheel 432 is arranged in the strip-shaped hole 4311, and the mounting frame 431 is further provided with an elastic piece 44 for applying elastic force to the rotating shaft 4321 of the adjustable guide wheel 432 so that the adjustable guide wheel is tightly attached to the guide rod 42. Specifically, the elastic member 44 applies an elastic force to the rotating shaft 4321 of the adjustable guide wheel 432, so as to ensure that the adjustable guide wheel 432 is always tightly abutted against the guide rod 42, thereby avoiding the occurrence of a movement gap. The mounting frame 431 is further provided with a flange structure 4312, the elastic element 44 is arranged between the flange structure 4312 and the rotating shaft 4321 of the adjustable guide wheel 432, and the elastic element 44 may be a compression spring compressed between the flange structure 4312 and the rotating shaft 4321 of the adjustable guide wheel 432; or, the elastic element 44 is an elastic ball, a positioning groove (not marked) is arranged at the end of the rotating shaft 4321 of the adjustable guide wheel 432, the elastic ball is located in the positioning groove, a tensioning bolt 45 is connected to the flange structure 4312 through a thread, and the tensioning bolt 45 abuts against the elastic ball, so that the elastic ball is squeezed between the rotating shaft 4321 and the tensioning bolt 45, and the elastic ball is ensured to apply elasticity to the rotating shaft 4312.

Further, the height adjustment assembly 4 includes an elastic expansion member 46, and the elastic expansion member 46 is connected between the frame 1 and the rotating frame 41. Specifically, because the rotating frame 41 is also affected by the reciprocating acting force during the up-and-down movement of the pedals 31, the elastic extensible member 46 can ensure that the rotating frame 41 is always in a state of force balance, so as to well alleviate the gap formed between the rotating frame 41 and the frame 1 and other connecting members, and ensure that the impact noise caused by the mechanical connection gap does not occur during the use of the fitness equipment by the sporter, while the elastic extensible member 46 and the driving mechanism 40 are located on the same side of the rotating frame 41, and the elastic extensible member 46 is used for applying a pulling force to the rotating frame 41, for example: the elastic expansion piece 46 can adopt a tension spring; alternatively, the elastic expansion element 46 and the driving mechanism 40 are located at both sides of the rotating frame 41, and the elastic expansion element 46 is used for applying a pushing force to the rotating frame 41, such as: the elastic expansion element 46 may be a compressed spring or a gas spring.

The specific use process of the exercise device of the embodiment is as follows:

firstly, the up-down motion realization process of the stepping motion of a sporter, wherein the foot of the sporter steps on the pedal 31 to apply downward thrust, the force is transmitted to the front swing arm 34 through the supporting rod 32, the front swing arm 34 transmits the upward thrust to the rocker 353 through the guide rod 42 and the sliding piece 43, the rocker 353 transmits the upward thrust to the connecting rod 352, the connecting rod 352 transmits the upward tension to the crank 351, the other end of the crank 351 is tightly matched and connected with the main shaft 11, and the main shaft 11 directly or indirectly drives the first damper 101 to operate; because one end of the crank 351 is fixed on the main shaft 11, and one end of the crank 351 is pulled upwards by the connecting rod 352, the crank 351 rotates clockwise around the main shaft 11, and because the two ends of the main shaft 11 are tightly matched and connected with the two cranks 351, the crank 351 at one end of the main shaft 11 rotates to drive the crank 351 at the other end to rotate symmetrically, so that the pedal assembly 3 at the other side of the rack 1 moves symmetrically, the foot at the other side of a sporter is lifted, and the up-and-down action of the stepping motion is realized. In addition, the inertia of the first damper 101 and the inertia design of the superposition combination of the inertia wheel 10 make the up-and-down movement of the stepping movement of the sporter have no pause, and the stepping movement is softer and smoother.

Secondly, the up-and-down movement of the stepping movement of the sporter is realized, the rear swing arm 33 and the corresponding synchronizing wheel 22 are fixed on the same shaft and are rotatably arranged on the frame 1 through the shaft, meanwhile, the front swing arm 34 is hung on the guide rod 42 to do the front-and-back swing arm movement, the support rod 32 is connected on the rear swing arm 33 and the front swing arm 34 to form a connecting rod structure similar to a parallelogram, and the pedal 12 is connected through the support rod 32 to do the front-and-back movement. The other side of the frame 1 is symmetrically designed with the same structure, and the pedals 31 on the left and right sides can reversely and synchronously move under the action of the synchronous component 2, thereby realizing the movement of stepping before and after the stepping movement of a sporter. In addition, the inertia of the second damper 102 is utilized to make the up-and-down movement of the stepping movement of the exerciser have no pause, so that the stepping movement is softer and smoother.

Install pedal through swing arm around adopting, make pedal on left and right sides reciprocate the in-process in the front and back, the stroke range that has enough big, pedal swing range of effectual increase, with the body-building amount of exercise maximize requirement that satisfies the sportsman, simultaneously, preceding swing arm is connected and is realized pedal up-and-down motion on link mechanism's rocker, pedal up-and-down motion turns into articulate rotation among the link mechanism, can ensure that whole motion process is smooth-going, the mechanism that realizes guiding pedal left and right sides and up-and-down motion all adopts the articulated mode of connecting rod, pedal arm of force change less that produces in different positions department, make the sportsman all can apply balanced power to the pedal of different positions department and drive its motion, the effectual user experience who has improved the sportsman. Meanwhile, the pedals are installed by adopting the swing arms and the connecting rod mechanisms, so that the connection reliability and the use reliability of the whole structure are greatly improved, the whole body-building equipment runs more softly and smoothly, and better body-building experience is provided for sporters. Meanwhile, the swing amplitude of the rocker is controlled by adjusting the installation position of the rocker by adopting the height adjusting assembly, so that the amplitude of the upward and downward movement of the pedal can be indirectly controlled, and the fitness requirements of different sporters are met.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (5)

1. A synchronous assembly is characterized by comprising a rack, a synchronous shaft and two synchronous wheels with opposite rotating directions, wherein the synchronous shaft and the synchronous wheels are rotatably arranged on the rack, two end parts of the synchronous shaft are respectively provided with a driving wheel, a first synchronous belt is arranged between one driving wheel and the synchronous wheel on the corresponding side, and a second synchronous belt is arranged between the other driving wheel and the synchronous wheel on the corresponding side; the first synchronous belts are wound between the corresponding transmission wheels and the corresponding synchronous wheels in the same winding direction, and the second synchronous belts are wound between the corresponding transmission wheels and the corresponding synchronous wheels in the opposite winding direction;

the first synchronous belt and the second synchronous belt are respectively fixed on the corresponding synchronous wheels, the outer circumference of each driving wheel is of a gear structure, and the first synchronous belt and the second synchronous belt are toothed belt belts;

in addition, a synchronous adjusting assembly is arranged on the synchronizing wheel and comprises an adjusting bracket, two positioning blocks and two adjusting bolts, the two positioning blocks are arranged in a back direction and are respectively arranged on the adjusting bracket in a sliding manner, slots for positioning the toothed belts are formed in the positioning blocks, a tooth structure is formed in the slots, and the adjusting bolts are in threaded connection with the corresponding end parts of the adjusting bracket and abut against the positioning blocks;

the adjusting bracket is of a pipeline structure, the positioning blocks are arranged in the pipeline structure in a sliding mode, two end portions of the adjusting bracket are respectively provided with a socket, a detachable baffle is arranged in each socket, each baffle is provided with a threaded hole, the two positioning blocks are located between the two baffles, and the adjusting bolts are in threaded connection in the threaded holes; the positioning block is further provided with a positioning blind hole, and the end part of the adjusting bolt is inserted into the corresponding positioning blind hole.

2. The synchronizing assembly according to claim 1, wherein the synchronizing shaft is further provided with a limiting plate, the rack is further provided with a limiting wheel matched with the limiting plate, the edge of the limiting plate forms an arc guide part and two upturned limiting parts, and the arc guide part is located between the two limiting parts.

3. An exercise apparatus comprising two treadle assemblies, said treadle assemblies comprising a treadle and a rear swing arm connected to said treadle, further comprising a synchronizing assembly according to any of claims 1-2; the upper end part of the rear swing arm and the corresponding synchronizing wheel in the synchronizing assembly are coaxially arranged and rotatably arranged on a rack in the synchronizing assembly.

4. The fitness equipment according to claim 3, wherein the pedal assembly further comprises a support rod, a front swing arm and a link mechanism, the link mechanism comprises a crank, a connecting rod and a rocker which are sequentially hinged together, the rocker is hinged on the frame, the pedal is mounted at the rear end of the support rod, the lower end of the rear swing arm is hinged at the middle part of the support rod, the lower end of the front swing arm is hinged at the front end of the support rod, and the upper end of the front swing arm is hinged on the rocker; the frame is provided with a rotatable main shaft, and the two cranks are fixed at the corresponding end parts of the main shaft; the fitness equipment further comprises a first damper and a second damper, the main shaft is connected with the first damper, and the synchronizing shaft is connected with the second damper.

5. The exercise apparatus of claim 4 further comprising a height adjustment assembly, the height adjustment assembly comprising a rotating frame, a guide rod, a slider, and a drive mechanism for driving the rotating frame to rotate, the rotating frame being hinged to the frame, the guide rod being hinged to the frame, the slider being slidably mounted on the guide rod, the rocker being hinged to the rotating frame, an upper end of the front swing arm being hinged to the guide rod, the slider being hinged to the rocker.

Images