CN212439873U - Mechanical suspension type treadmill - Google Patents

Abstract

The utility model discloses a mechanical suspension type treadmill, which comprises a bottom frame component; a suspended running platform assembly; the suspended running platform assembly comprises a running platform frame in a frame structure, a first running roller assembly and a second running roller are arranged on the running platform frame, and a running belt is wound and connected between the first running roller assembly and the second running roller; a running board is arranged between the two layers of running belts; a rear shock absorption component is arranged between the bottom of the rear end of the running board and the running platform frame; the front end of the running platform frame is provided with a front shock absorption system; set up between underframe subassembly and the suspension running platform subassembly front end and be used for adjusting the lifting assembly of suspension running platform subassembly front end height. The utility model discloses well underframe subassembly only is located the bottom of the platform subassembly front end is run in the suspension, makes the treadmill form the individual layer structure of the platform subassembly is run in the suspension, and the bilayer structure who distributes about running the platform subassembly with floating constitutes with current underframe subassembly compares, and the overall structure of treadmill has been simplified in this application's this kind of structure setting, has reduced the whole weight of treadmill, has reduced holistic cost of manufacture.

Description

Mechanical suspension type treadmill

Technical Field

The utility model belongs to the technical field of the treadmill, concretely relates to floated treadmill of machinery.

Background

With the increase of consumption level and the popularization of healthy life, running machines are increasingly appearing in the fields of business, home, medical rehabilitation and the like.

Because running on the running machine is a passive type movement, namely, under the conditions of set speed and angle, the running belt drives the steps of the body builder to move, the impact force applied to the feet, knees and hip joints of the body builder is 3-5 times of the weight of the body builder during running. The joints of the feet, knees and hips are most afraid of hard impact, for example, the thickness of the knee joint cartilage of a human body is about 1-2 mm, and the main function is to buffer pressure and protect bones from being broken; knee joint life is limited, theoretically 60 years healthy, so knee joints are most afraid of hard shocks, especially when running.

Therefore, the primary problem of protecting the safety of sports is how to effectively buffer the impact on the joint of the human body.

Chinese patent CN201210415392.9 discloses a floating treadmill with a running platform and a method of using the same, wherein the running platform component for bearing the exerciser is designed to be a vertical upper and lower floating structure relative to the base component, although there is a larger elastic displacement than other elastic structures and materials, so that the exerciser can obtain a certain buffer and pressure release during the running process, but the whole structure of the treadmill is more complex, and the limit and elastic reset capability is limited, and the treadmill with a single-layer structure can not realize corresponding functions according to the above patent.

In addition, chinese patent CN201721552491.6 discloses a floating type running machine, and chinese patent CN201820647947.5 discloses a running board floating type running machine, wherein the running platform component of the running platform component also adopts a vertical up-down floating type structure, but the bottom frame component and the floating running platform component in the above two patents still form a double-layer structure distributed up and down, thereby resulting in a large size and heavy weight of the running machine, which is only suitable for a commercial running machine (used in a gymnasium) or a running machine with a large structure, and cannot meet the requirement of lighter weight of the running machine, for example, a household running machine used at home needs to have lighter weight.

In view of this, the present patent application is specifically proposed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects of the prior art and providing a mechanical suspension type running machine.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a mechanically suspended running machine is composed of

A base frame assembly for supporting and positioning from the bottom;

the suspended running platform component is used for bearing a body builder and the front end of the suspended running platform component is arranged at the upper part of the bottom frame component;

the suspended running platform assembly comprises a running platform frame in a frame structure, a first running roller assembly and a second running roller are respectively arranged at the position, close to the front end, of the running platform frame and at the rear end, and a running belt is wound and connected between the first running roller assembly and the second running roller; a running board is arranged between the two layers of running belts, and the bottom of the running board is connected with the running platform frame through the platform frame buffer rubber;

a rear shock absorption component is arranged between the bottom of the rear end of the running board and the running platform frame; the front end of the running platform frame is provided with a front shock absorption system;

set up between underframe subassembly and the suspension running platform subassembly front end and be used for adjusting the lifting assembly of suspension running platform subassembly front end height.

Preferably, the first running roller assembly comprises a first mandrel fixedly connected with the running platform frame;

the first mandrel is coaxially and rotatably connected with a first roller;

a first driving wheel and a first belt pulley are respectively and coaxially arranged at two ends of the first roller; the first belt pulley is coaxially and fixedly connected with the first roller; the inner wall surface of the first transmission wheel is fixedly connected with the outer ring of the one-way bearing, the inner ring of the one-way bearing is fixedly connected with one end of the outer wall surface of the connecting sleeve, the other end of the outer wall surface of the connecting sleeve is fixedly connected with the first roller, and the inner wall surface of the connecting sleeve is in clearance fit with the first mandrel; the first pulley is connected to the drive mechanism.

Preferably, the lifting assembly comprises a lifting welded pipe, and lifting welded plates are fixedly arranged at two ends of the lifting welded pipe; two ends of the lifting welding plate are rotatably provided with lifting rotating shafts;

the lifting rotating shafts positioned at the front ends of the two lifting welding plates are respectively hinged with the bottom frame component; the lifting rotating shafts positioned at the rear ends of the two lifting welding plates are respectively hinged with the running platform welding plates on the two sides of the running platform frame;

the middle part of the lifting welded pipe is hinged with a lifting sleeve;

the inner wall surface of the lifting sleeve is in threaded connection with a lifting screw rod, and the top of the lifting screw rod is coaxially and fixedly connected with a rotating shaft of a lifting motor;

the motor casing of the lifting motor is connected with the front shock absorption system.

Preferably, the front shock absorption system comprises a front shock absorption assembly and a rack assembly in transmission connection with the first transmission wheel;

the front shock absorption assembly comprises a front support fixedly connected with the front end of the running platform frame, and two guide pillars vertically extending upwards are arranged on the front support; a front buffer spring is sleeved on the guide post;

the rack component comprises a driving part which is used for driving and connecting the rack with the first driving wheel; one end of the transmission piece is fixedly connected with the rack welding pipe, the other end of the rack welding pipe is provided with two linear bearings which are respectively in sliding fit with the two guide pillars, and the linear bearings are positioned at the lower part of the front buffer spring; the upper part of a rack welding pipe between the two linear bearings is fixedly connected with the rack U-shaped plate;

the rack U-shaped plate is hinged with a motor shell of the lifting motor.

Preferably, the first driving wheel is a first gear, the driving part is a rack, and the first gear is meshed with the rack;

the front bracket is a front U-shaped bracket; the rack U-shaped plate is positioned at the lower part of the upper wall plate of the front U-shaped frame.

Preferably, the first transmission wheel is a first synchronous pulley; the transmission part is a rack;

a transmission piece in the rack assembly is in transmission connection with the first synchronous belt wheel through a transmission assembly;

the transmission assembly comprises a transmission shaft, two ends of the transmission shaft are provided with bearing supports fixedly connected with the running platform frame, and the transmission shaft is rotatably connected with the bearing supports; two ends of the transmission shaft are respectively and coaxially and fixedly provided with a transmission gear and a second synchronous belt wheel;

the transmission gear is meshed with the rack and connected with the rack, and the second synchronous belt wheel is in transmission connection with the first synchronous belt wheel through a synchronous belt.

Preferably, the first transmission wheel is a first gear;

the lifting assembly comprises a welding rod, and welding plates are fixedly arranged at two ends of the welding rod; two ends of the welding plate are respectively provided with a welding shaft and a second bearing; the middle part of the welding rod is provided with a nut, and the nut is in threaded fit with the lead screw;

the front shock absorption system comprises a connecting rod assembly, the connecting rod assembly comprises a connecting rod, two ends of the connecting rod are respectively connected with one end of a connecting plate, and the other end of the connecting plate is rotatably connected with a rotating shaft on the running platform frame; the connecting rods at the inner sides of the two connecting plates are provided with connecting rings; a connecting rod rack which is used for being meshed and connected with the first gear is arranged on the connecting plate on one side;

the welding shafts on the two welding plates are respectively hinged with the bottom frame assembly; the second bearings on the two welding plates are rotatably connected with the connecting rod;

the bottom end of the lead screw is in contact connection with the bottom frame component;

the upper end and the lower end of the connecting ring are respectively provided with a front steel plate spring and a front steel plate bent plate; the top end of the front steel plate bent plate is fixedly connected with a front steel plate spring, and the front steel plate spring is fixedly connected with the running platform frame; a pressure spring is arranged between the front steel plate spring and the running plate.

Preferably, the first transmission wheel is a first gear; the transmission part is a rack, and the first gear is meshed with the rack;

the front bracket is two bracket welding plates which are arranged in parallel up and down; the rack U-shaped plate is positioned on the upper part of the upper bracket welding plate;

rack hinged plates are symmetrically arranged on the rack welded pipe outside the two linear bearings in the rack assembly;

lifting hinged plates are symmetrically arranged on the lifting welded pipes on the two sides of the lifting U-shaped frame;

and the corresponding rack hinged plate is hinged with the lifting hinged plate.

Preferably, the first transmission wheel is a synchronous pulley;

the front shock absorption system comprises a front shock absorption assembly, the front shock absorption assembly comprises a front U-shaped frame fixedly connected with the front end of the running platform frame, and two guide columns which vertically extend upwards are arranged on the front U-shaped frame; a front buffer spring is sleeved on the guide post; linear bearings are arranged on guide pillars at the lower part of the front buffer spring, rack U-shaped plates are arranged at the upper parts of the two linear bearings, and the rack U-shaped plates are hinged with a motor shell of the lifting motor;

a third synchronous belt wheel is arranged on the lifting rotating shaft which is connected with the running platform frame and is positioned at the same end with the synchronous belt wheel; the synchronous belt wheel is in transmission connection with the third synchronous belt wheel through a transmission belt.

Preferably, the rear shock absorption components are arranged at the left end and the right end of the running platform frame in pairs;

the rear shock absorption assembly comprises a rear steel plate spring fixedly connected with the running platform frame, a rear buffer spring is arranged at the upper part of the rear steel plate spring, a rear connecting joint is arranged at the top part of the rear buffer spring, and the rear connecting joint is in contact connection with the bottom end of the running board; the bottom of the back steel plate spring is provided with a roller component.

The utility model has the advantages that:

(1) the bottom frame component is only positioned at the bottom of the front end of the suspension running platform component, so that the running machine forms a single-layer structure of the suspension running platform component, and compared with a double-layer structure which is formed by the existing bottom frame component and the floating running platform component and distributed up and down, the structure of the running machine simplifies the whole structure of the running machine, reduces the whole weight of the running machine and the whole manufacturing cost;

(2) the arrangement of the unidirectional bearing in the first running roller component of the utility model converts the descending impact force of the running platform and the human body into the backward moving power of the running belt, thus playing the role of increasing the boosting force;

(3) the utility model provides a larger degree of buffer for the exercise impulse and effectively reduces the damage of the impact peak value to the joint by the upward resistance given by the front buffer spring, the rear buffer spring and the rack in the downward moving process of the running platform;

(4) the utility model discloses suspension when well preceding shock mitigation system, back damper realize the body-building person jointly and run the unsteady from top to bottom of platform subassembly, provides better buffering when running for the body-building person on the one hand to reduce the damage to the joint, on the other hand has reduced the impact to the bottom sprag when running, and then has reduced motion noise and vibrations energy.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

Fig. 1 is a schematic structural view of a mechanical suspension treadmill according to embodiment 1 of the present invention;

FIG. 2 is an enlarged partial view of portion A of FIG. 1;

fig. 3 is a schematic structural view of the middle bottom frame assembly of the present invention;

FIG. 4 is a schematic structural view of a rear cushion assembly of the present invention;

fig. 5 is a schematic structural view of a lifting assembly in embodiment 1 of the present invention;

FIG. 6 is a schematic structural view of the floating running platform assembly of the present invention;

FIG. 7 is an enlarged view of part B of FIG. 6;

fig. 8 is a schematic structural view of a rack assembly in embodiment 1 of the present invention;

fig. 9 is a schematic structural view of a front shock absorbing system in embodiment 1 of the present invention;

fig. 10 is a schematic sectional view of a front shock absorbing system in embodiment 1 of the present invention;

FIG. 11 is a schematic view of the first track roller assembly of the present invention;

fig. 12 is a schematic structural view of a front shock absorbing system in embodiment 2 of the present invention;

fig. 13 is a schematic structural view of a rack assembly in embodiment 2 of the present invention;

fig. 14 is a schematic structural view of a transmission assembly according to embodiment 2 of the present invention;

fig. 15 is a partial schematic view of a mechanically suspended treadmill according to embodiment 3 of the present invention;

fig. 16 is a schematic structural view of the connecting rod assembly according to embodiment 3 of the present invention;

fig. 17 is a schematic structural view of a lifting assembly in embodiment 3 of the present invention;

fig. 18 is a schematic structural view of a front shock absorbing system in embodiment 3 of the present invention;

fig. 19 is a partial schematic view of a mechanically suspended treadmill according to embodiment 4 of the present invention;

FIG. 20 is an enlarged partial view of portion R of FIG. 19;

fig. 21 is a schematic structural view of a rack assembly in embodiment 4 of the present invention;

fig. 22 is a partial schematic view of a mechanically suspended treadmill according to embodiment 5 of the present invention;

wherein the content of the first and second substances,

10-bottom frame component, 101-bottom frame welded pipe, 102-bottom frame welded plate, 103-bottom frame welded plate hole and 104-bottom frame buffer rubber;

20-suspended running board assembly, 201-running board frame, 202-motor, 203-first belt, 204-running belt, 205-running board, 206-second running roller, 207-board frame cushion rubber, 208-first running roller assembly, 2081-first spindle, 2082-first gear, 2083-one-way bearing, 2084-connecting sleeve, 2085-first bearing, 2086-first roller, 2087-first pulley, 209-running board weld plate, 2091-weld plate hole, 210-front U-shaped frame, 211-front cushion plate, 212-front cushion spring, 213-guide post, 214-lower cushion, 215-upper cushion, 216-board frame bent plate, 2161-nut, 217-board frame U-shaped plate, 2171-joint hole, 218-U-shaped weld, 220-bracket welding plate, 230-rotating shaft, 231-running platform frame welding plate;

30-lifting components, 301-lifting welded pipes, 302-lifting welded plates, 303-lifting U-shaped frames, 3031-lifting holes, 304-lifting bearings, 305-lifting rotating shafts, 306-lifting sleeves, 3061-lifting sleeve holes and 307-lifting hinged plates;

40-rear shock absorbing component, 401-leaf spring, 402-rear cushion pad, 403-roller U-shaped frame, 4031-roller hole, 404-rear cushion spring, 405-rear connecting joint, 406-roller, 407-bottom plate;

50-rack assembly, 501-rack, 502-rack weld tube, 503-rack plate, 504-weld sleeve, 505-linear bearing, 506-rack U-shaped plate, 507-rack hole, 508-rack hinge plate;

60-a lift motor, 601-a motor hole;

70-lifting a screw rod;

80-drive assembly, 801-bearing support, 802-drive shaft, 803-first synchronous pulley, 804-synchronous belt, 805-drive bearing, 806-drive gear, 807-second synchronous pulley, 808-idler gear;

90-lifting components, 901-welding rods, 902-welding plates, 903-lead screws, 9031-nuts, 904-second bearings and 905-welding shafts;

91-connecting rod assembly, 911-connecting rod, 912-connecting plate, 913-connecting ring, 914-connecting bearing, 915-lifting rack, 916-front steel plate spring, 917-pressure spring and 918-front steel plate bent plate;

921-synchronous pulley, 922-third synchronous pulley, 923-transmission belt.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, terms such as "connected" and "connected" should be understood in a broad sense, and may be either fixedly connected or integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The meaning of the above terms in the present invention can be determined according to specific situations by persons skilled in the art, and should not be construed as limiting the present invention.

The present invention will be further explained with reference to the drawings and examples.

Example 1:

as shown in fig. 1, a mechanical suspension type treadmill comprises

A base frame assembly 10 for supporting and positioning from the bottom;

a floating running platform component 20 which is used for bearing the body builder and is arranged at the upper part of the bottom frame component 10 at the front end;

as can be seen from fig. 1, the bottom frame assembly 10 of the present application is only located at the bottom of the front end of the floating running platform assembly 20, so that the running machine forms a single-layer structure of the floating running platform assembly 20, compared with a double-layer structure formed by the existing bottom frame assembly and the floating running platform assembly and distributed up and down, the structure of the present application simplifies the overall structure of the running machine, reduces the overall weight of the running machine, and reduces the overall manufacturing cost;

as shown in fig. 6, the floating running platform assembly 20 comprises a running platform frame 201 in a frame structure, a first running roller assembly 208 and a second running roller 206 are respectively arranged at the position close to the front end and the rear end of the running platform frame 201, and a running belt 204 is wound and connected between the first running roller assembly 208 and the second running roller 206; a running board 205 is arranged between the two layers of running belts 204, and the bottom of the running board 205 is connected with the running platform frame 201 through a platform frame buffer rubber 207;

a rear shock absorption assembly 40 is arranged between the bottom of the rear end of the running board 205 and the running platform frame 201; the front end of the running platform frame 201 is provided with a front shock absorption system; the front shock absorption system and the rear shock absorption assembly 40 jointly realize the up-and-down floating of the suspended running platform assembly 20 when the exerciser runs;

set up between underframe subassembly 10 and the suspension running platform subassembly 20 front end and be used for adjusting the suspension and run the lifting component 30 of platform subassembly 20 front end height, lifting component 30 adjusts the inclination of suspension running platform subassembly 20 through the height of adjusting the suspension running platform subassembly 20 front end promptly to make the runner can carry out the running of different climbing angles and experience.

Wherein, the lifting component 30 is not only a device for adjusting the gradient of the running platform, but also forms a front suspension system with the front damping system;

the front suspension system and the rear shock absorbing assembly 40 form an up-and-down mechanical floating of the suspended deck assembly 20.

Preferably, as shown in fig. 3, the bottom frame assembly 10 has a frame structure formed by welding a plurality of bottom frame welded pipes 101, at least one pair of bottom frame welded plates 102 is disposed on the bottom frame welded pipe 101 located at the front end, and the bottom frame welded plates 102 are disposed with bottom frame welded holes 103 coaxial with each other. Specifically, the front end of the bottom frame assembly 10 is provided with a pillar, a handrail, and a dashboard, where the pillar, the handrail, and the dashboard are the same as those in the prior art, and therefore are not shown in the drawings, and the detailed structure thereof is not described again.

Specifically, as shown in fig. 3, a plurality of bottom frame cushion rubbers 104 are fixedly disposed at the bottom of the bottom frame assembly 10, and the bottom frame cushion rubbers 104 contact with the ground to perform a cushioning and shock absorbing function.

Preferably, as shown in fig. 11, the first running roller assembly 208 comprises a first mandrel 2081, and the first mandrel 2081 is fixedly connected with the running platform frame 201, specifically, connected with the U-shaped weldment 218 on the running platform frame 201 through bolts;

a first roller 2086 is coaxially and rotatably connected to the first mandrel 2081; specifically, two ends of the first roller 2086 are respectively connected with the first mandrel 2081 through a first bearing 2085 in a rotating manner;

a first driving wheel and a first belt pulley 2087 are coaxially arranged at the two ends of the first roller 2086 respectively; the first belt pulley 2087 is coaxially and fixedly connected with the first roller 2086; the inner wall surface of the first transmission wheel is fixedly connected with the outer ring of the one-way bearing 2083, the inner ring of the one-way bearing 2083 is fixedly connected with one end of the outer wall surface of the connecting sleeve 2084, the other end of the outer wall surface of the connecting sleeve 2084 is fixedly connected with the first roller 2086, and the inner wall surface of the connecting sleeve 2084 is in clearance fit with the first mandrel 2081; the first pulley 2087 is coupled to a drive mechanism.

Specifically, the first drive wheel is a first gear 2082.

Specifically, the driving mechanism includes a motor 202 fixedly disposed on the running platform frame 201, a driving wheel is disposed at an end of a rotating shaft of the motor 202, and the driving wheel is in transmission connection with the first belt pulley 2087 through a first belt 203.

In the direction C in fig. 11, when the inner ring of the one-way bearing 2083 is fixed, the outer ring thereof is allowed to rotate clockwise with respect to the inner ring, and when the outer ring of the one-way bearing 2083 is fixed, the inner ring thereof is allowed to rotate counterclockwise.

Therefore, the first roller 2086 can be driven by the first pulley 2087 to rotate counterclockwise (i.e., the rotation direction of the running belt 204) due to the function of the one-way bearing 2083; meanwhile, if the outer ring of the one-way bearing 2083 also rotates counterclockwise, an additional moment can be generated on the first roller 2086 through the connecting sleeve 2084, and if the outer ring of the one-way bearing 2083 stops or rotates clockwise, the counterclockwise rotation of the inner ring and the first roller 2086 is not affected.

Specifically, the middle of the second running roller 206 is coaxially and rotatably connected with a second mandrel, and the second mandrel is connected with the U-shaped weldment 218 on the running platform frame 201 through bolts.

Preferably, as shown in fig. 2 and 4, the rear cushion assemblies 40 are provided in pairs at both left and right ends of the running deck frame 201;

the rear shock absorption assembly 40 comprises a rear steel plate spring 401 fixedly connected with the running platform frame 201, a rear buffer spring 404 is arranged at the upper part of the rear steel plate spring 401, a rear connecting joint 405 is arranged at the top part of the rear buffer spring 404, and the rear connecting joint 405 is in contact connection with the bottom end of the running board 205; the bottom of the rear leaf spring 401 is provided with a roller assembly.

Specifically, the roller assembly comprises a roller U-shaped frame 403 and a roller 406; two side plates of the roller U-shaped frame 403 are provided with roller holes 4031, and the central shaft of the roller 406 is rotatably connected with the roller holes 4031; a rear cushion pad 402 is arranged between the roller U-shaped frame 403 and the rear leaf spring 401; a bottom plate 407 is arranged at the bottom of the roller 406, and the bottom plate 407 is tangent to the roller;

specifically, a frame bent plate 216 is arranged on the inner side of the left and right frames of the running frame 201, a frame U-shaped plate 217 is arranged on one side of the frame bent plate 216, and a joint hole 2171 is arranged on the frame U-shaped plate 217; the bezel bent plate 216 and the rear leaf spring 401 are fixedly coupled by a nut 2161, and the rear connection tab 405 is inserted upward into the tab hole 2171.

Preferably, as shown in fig. 5, the lifting assembly 30 includes a lifting welded pipe 301, and lifting welded plates 302 are fixedly disposed at two ends of the lifting welded pipe 301; the two ends of the lifting welding plate 302 are rotatably provided with lifting rotating shafts 305; specifically, two ends of the lift welding plate 302 are rotatably connected with the lift rotating shaft 305 through the lift bearing 304;

the lifting rotating shafts 305 on the two lifting welded plates 302 at the front ends are respectively hinged with the bottom frame assembly 10, and specifically hinged with the bottom frame welded plate holes 103 on the corresponding bottom frame welded plates 102; the lifting rotating shafts 305 on the two lifting welding plates 302 at the rear ends are respectively hinged with the running platform welding plates 209 on the two sides of the running platform frame 201, and specifically, the running platform welding plates 209 are provided with welding plate holes 2091;

the middle part of the lifting welded pipe 301 is provided with a lifting U-shaped frame 303, and as shown in fig. 10, a lifting sleeve 306 is hinged between two side walls of the lifting U-shaped frame 303; specifically, two side walls of the lifting U-shaped frame 303 are provided with lifting holes 3031, the bottom of the lifting sleeve 306 is provided with lifting sleeve holes 3061, and rotating pins are arranged between the aligned lifting sleeve holes 3061 and the lifting holes 3031;

the inner wall surface of the lifting sleeve 306 is in threaded connection with the lifting screw 70, and the top of the lifting screw 70 is coaxially and fixedly connected with the rotating shaft of the lifting motor 60;

the motor housing of the lift motor 60 is connected to the front damping system.

Preferably, as shown in fig. 7-10, the front shock absorbing system includes a front shock absorbing assembly and a rack assembly 50 in driving connection with the first driving wheel;

the front shock absorption assembly comprises a front bracket fixedly connected with the front end of the running platform frame 201, and two guide columns 213 which vertically extend upwards are arranged on the front bracket; a front buffer spring 212 is sleeved on the guide post 213, and the upper end of the front buffer spring 212 is fixedly connected with the front bracket; the rack assembly 50 comprises a transmission member for driving connection with the first drive wheel, specifically, the transmission member is a rack 501; one end of the rack 501 is fixedly connected with the rack welded pipe 502, and specifically, the rack 501 is fixedly connected with the rack welded pipe 502 through a rack plate 503; the other end of the rack welded tube 502 is provided with two linear bearings 505 which are respectively in sliding fit with the two guide posts 213, and the linear bearings 505 are positioned at the lower parts of the front buffer springs 212; specifically, the linear bearing 505 is fixedly connected with the rack welded pipe 502 through the welding sleeve 504; the upper part of a rack welding pipe 502 between the two linear bearings 505 is fixedly connected with a rack U-shaped plate 506;

the rack U-shaped plate 506 is hinged with a motor shell of the lifting motor 60; specifically, rack holes 507 are formed in two side walls of the rack U-shaped plate 506, a motor hole 601 is formed in a motor casing of the lift motor 60, and rotating pins are arranged in the aligned motor hole 601 and the rack holes 507.

The bottom of the guide column 213 is provided with a lower cushion 214.

The first gear 2082 is meshed with the rack 501;

specifically, the front bracket is a front U-shaped bracket 210; the hinged shaft of the rack U-shaped plate 506 and the lifting motor 60 is positioned at the lower part of the upper wall plate of the front U-shaped frame 210;

specifically, a front buffer plate 211 is arranged at the top of the front U-shaped frame 210, and an upper buffer pad 215 is arranged at the bottom of the front buffer plate 211; the front cushion plate 211, the lower cushion pad(s) 214, and the upper cushion pad 215 are buffer position-limiting devices that limit the vertical position of the linear bearing 505 of the rack assembly 50, i.e., limit the buffer distance.

When the exerciser runs, the suspended running platform assembly 20 floats up and down along a certain track under the action of the front buffer spring 212, the lifting assembly 30, the rear shock absorption assembly 40 and the rack assembly 50, and forms a floating relation with a corner with the bottom frame assembly 10. The method comprises the following specific steps:

before running, the lifting motor 60 is started under the threaded fit of the lifting screw 70 and the lifting sleeve 306, the hinged fit of the lifting component 30 and the bottom frame component 10, the hinged fit of the lifting component 30 and the running platform frame 201, the hinged fit of the lifting sleeve 306 and the lifting component 30, and the hinged fit of the motor shell of the lifting motor 60 and the rack component 50, so that the height of the front end of the suspended running platform component 20 can be adjusted. After the adjustment is completed, the distance between the lifting sleeve hole 3061 of the lifting sleeve 306 and the motor hole 601 of the lifting motor 60 is fixed during the subsequent running process of the exerciser, but the exerciser can make adaptive space movement according to the floating of the floating running platform assembly 20 during the running process, and only the bottom frame assembly 10 is fixed in space during the running process.

During running, when the floating running platform assembly 20 is forced to float downwards (as shown in fig. 9-10), the rear shock absorption assembly 40 is forced to deform, the front U-shaped frame 210 of the floating running platform assembly 20 drives the front buffer spring 212 to move downwards, the lower end of the front buffer spring 212 presses the linear bearing 505 of the rack assembly 50, the rack assembly 50 is limited by the lifting motor 60 and the lifting screw 70, the downward movement amplitude is small, and the downward movement amplitude of the floating running platform assembly 20 is large, so that the floating running platform assembly 20 moves downwards relative to the rack assembly 50, the first gear 2082 is subjected to an upward acting force F of the rack 501, the first gear 2082 is meshed with the rack 501, and the first gear 2082 rotates anticlockwise; at this time, the outer ring of the one-way bearing 2083 is in a non-rotatable direction relative to the first roller 2086, so that a part of downward floating impact force drives the first roller 2086 to rotate along the counterclockwise direction through the first gear 2082 and the one-way bearing 2083, thereby driving the running belt 204 to rotate, and reducing the power input. One-way bearing 2083 plays the effect of increasing boosting power this moment, turns into the first roller 2086 of drive with human impact energy and drives the auxiliary power of running area 204, simultaneously, because running area 204 has the friction with running board 205 for the suspension is run platform subassembly 20 and is descended gently, not suddenly.

When a user runs, the user is separated from the feet at a certain moment, at the moment, the suspension running platform assembly 20 floats upwards under the action of the front buffer spring 212 and the rear buffer assembly 40, at the moment, the suspension running platform assembly 20 moves upwards relatively relative to the rack assembly 50, the first gear 2082 rotates clockwise, at the moment, the inner ring of the one-way bearing 2083 and the first roller 2086 are in a rotatable state, so that the motor 202 drives the first roller 2086 to rotate anticlockwise through the first belt 203 and the first belt pulley 2087 so as to drive the running belt 204 to rotate, and at the moment, the one-way bearing 2083 does not block normal driving force.

Therefore, during the running of the exerciser, the floating deck assembly 20, the rack assembly 50 and the lift assembly 30 are spatially moved, and the floating deck assembly 20 is spatially formed in a floating relationship with a corner.

When the suspension treadmill component 20 moves up and down, the first gear 2082 is meshed with the rack 501, the pitch circle line of the rack 501 is the track meshed with the rack 501, the running impact force is converted into an upward force F of the rack 501 on the first gear 2082, the force generates an anticlockwise moment on the gear 2082 to promote the treadmill belt 204 to move backwards, and meanwhile, a part of component of the force generates a damping effect when the suspension treadmill component 20 descends to enable the descent of the suspension treadmill component 20 to be smooth.

Meanwhile, the whole floating treadmill component 20 can float front and back, so that a mechanical floating structure of a single-layer treadmill is formed.

Example 2:

as shown in fig. 12 to 14, the differences from embodiment 1 are:

the first drive wheel in the first track roller assembly 208 is a first synchronization pulley 803;

the rack 501 in the rack assembly 50 is in transmission connection with the first synchronous pulley 803 through the transmission assembly 80;

the transmission assembly 80 comprises a transmission shaft 802, two ends of the transmission shaft 802 are provided with bearing brackets 801 fixedly connected with the running platform frame 201, and the transmission shaft 802 and the bearing brackets 801 are rotatably connected through transmission bearings 805; a transmission gear 806 and a second synchronous pulley 807 are coaxially and fixedly arranged at two ends of the transmission shaft 802 respectively; the transmission gear 806 is meshed with the rack 501, and the second synchronous pulley 807 is in transmission connection with the first synchronous pulley 803 through a synchronous belt 804;

specifically, an idler pulley 808 for tensioning the timing belt 804 is provided on the running deck frame 201 between the first timing pulley 803 and the second timing pulley 807.

The remaining technical features are the same as in example 1.

In embodiment 2, when the floating treadmill assembly 20 is forced to float downward, the rack 501 generates a force G (same as force F in fig. 10) to the transmission gear 806, and the power is transmitted to the first synchronous pulley 803 through the transmission shaft 802, the second synchronous pulley 807, the synchronous belt 804 and the idle pulley 808, so as to drive the first treadmill assembly 208 to rotate in the counterclockwise direction, thereby driving the treadmill belt 204 to rotate, which can reduce the power input, and other functions are the same as those of embodiment 1, and are not described again.

Example 3:

as shown in fig. 15 to 18, the differences from embodiment 1 are:

the lifting component 90 comprises a welding rod 901, and welding plates 902 are fixedly arranged at two ends of the welding rod 901; a welding shaft 905 and a second bearing 904 are respectively arranged at two ends of the welding plate 902; a nut 9031 is arranged in the middle of the welding rod 901, and the nut 9031 is in threaded fit with the lead screw 903;

the front shock absorption system comprises a connecting rod assembly 91, the connecting rod assembly 91 comprises a connecting rod 911, two ends of the connecting rod 911 are respectively connected with one end of a connecting plate 912, and the other end of the connecting plate 912 is rotatably connected with the rotating shaft 230 on the running platform frame 201 through a connecting bearing 914; a connecting ring 913 is arranged on the connecting rod 911 at the inner side of the two connecting plates 912; a connecting rod rack 915 which is used for being meshed and connected with the first gear 2082 is arranged on the connecting plate on one side;

the welding shafts 905 on the two welding plates 902 are respectively hinged with the bottom frame assembly 10, and specifically hinged with the bottom frame welding plate holes 103 on the corresponding bottom frame welding plate 102; the second bearings 904 on the two welding plates 902 are rotatably connected with the connecting rod 911;

the bottom end of the screw 903 is in contact connection with the bottom frame component 10, and specifically, a through hole for the upper end of the screw 903 to pass through is formed in the running platform frame 201;

the upper end and the lower end of the connecting ring 913 are respectively provided with a front steel plate spring 916 and a front steel plate bent plate 918, and the front steel plate spring 916 and the front steel plate bent plate 918 are sleeved on the outer ring of the connecting ring 913 (in clearance fit); the top end of the front steel plate bending plate 918 is fixedly connected with a front steel plate spring 916, and the front steel plate spring 916 is fixedly connected with the running platform frame 201; specifically, a running platform frame welding plate 231 is arranged at the bottom of the running platform frame 201 close to the front end, and a front steel plate spring 916 is fixedly arranged at the bottom of the running platform frame welding plate 231; a pressure spring 917 is arranged between the front steel plate spring 916 and the running plate 205 and plays a role in auxiliary buffering.

The remaining technical features are the same as in example 1.

In embodiment 3, the angle of the lifting member 90 relative to the base frame member 10 can be adjusted by rotating (electrically or manually) the lead screw 903, so as to adjust the height of the front end of the floating running platform assembly 20.

When the suspended running platform assembly 20 floats downwards under the stress, the connecting rod assembly 91 keeps the relative position of the space fixed, the front steel plate spring 916 and the pressure spring 917 deform under the stress, the suspended running platform assembly 20 floats downwards, the first gear 2082 is subjected to the W force of the lifting rack 915 (same as F in fig. 10), and generates moment on the first running roller assembly 208 to push the running belt 204 to move backwards, so that the electric power input can be reduced, other effects are the same as those of embodiment 1, and the description is omitted.

Example 4:

as shown in fig. 19 to 21, the differences from embodiment 1 are:

the motor shell of the lifting motor 60 is hinged with the rack U-shaped plate 506, and the rack U-shaped plate 506 is connected with the running platform frame 201;

the front support in the front shock absorption system is two support welding plates 220 which are arranged in parallel up and down; the hinged shaft of the rack U-shaped plate 506 and the lifting motor 60 is positioned at the upper part of the upper bracket welding plate 220;

rack hinge plates 508 are symmetrically arranged on the rack welded pipe 502 outside the two linear bearings 505 in the rack assembly 50;

lifting hinge plates 307 are symmetrically arranged on the lifting welded pipes 301 on the two sides of the lifting U-shaped frame 303;

the corresponding rack hinge plate 508 is hinged to the lift hinge plate 307.

The remaining technical features are the same as in example 1.

In example 4, compared to example 1, the spring guide post system consisting essentially of the guide post 213 and the front cushion spring 212 is provided at the lower portion, and the effect is the same as that in example 1.

Example 5:

as shown in fig. 22, the difference from embodiment 1 is:

the first drive pulley in the first track roller assembly 208 is a timing pulley 921;

the front shock absorption system comprises a front shock absorption assembly, the front shock absorption assembly comprises a front U-shaped frame 210 fixedly connected with the front end of the running platform frame 201, and two guide columns 213 which vertically extend upwards are arranged on the front U-shaped frame 210; a front buffer spring 212 is sleeved on the guide post 213, and the upper end of the front buffer spring 212 is fixedly connected with the front U-shaped frame 210; linear bearings 505 are arranged on the guide posts 213 at the lower part of the front buffer spring 212, a rack U-shaped plate 506 is arranged at the upper parts of the two linear bearings 505, and the rack U-shaped plate 506 is hinged with the motor shell of the lift motor 60;

a third synchronous belt wheel 922 is arranged on the lifting rotating shaft 305 which is connected with the running platform frame 201 and is positioned at the same end with the synchronous belt wheel 921, wherein the third synchronous belt wheel 922 is coaxial with the lifting rotating shaft 305 and is fixedly connected with the lifting welding plate 302 at the corresponding side; the timing pulley 921 and the third timing pulley 922 are connected to each other by a transmission belt 923.

The remaining technical features are the same as in example 1.

In embodiment 5, when platform subassembly 20 floated downwards in the suspension, the relative suspension in the welding plate 302 space of lift subassembly 30 was run platform welding plate 209 of running of platform subassembly 20 and is rotated, drive third synchronous pulley 922 and rotate, third synchronous pulley 922 passes through drive belt 923 and passes to power to synchronous pulley 921, and then the first roller 2086 of platform subassembly 20 is run in the drive suspension rotates backward and drives and run the area 204 and move backward, convert partial impact potential energy into the supplementary kinetic energy of running the area, with reduce electric power input, other effects are the same with embodiment 1, no longer describe repeatedly.

Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the present invention, and those skilled in the art should understand that, based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without inventive labor are still within the scope of the present invention.

Claims (10)

1. A mechanically suspended treadmill is characterized by comprising

A base frame assembly for supporting and positioning from the bottom;

the suspended running platform component is used for bearing a body builder and the front end of the suspended running platform component is arranged at the upper part of the bottom frame component;

the suspended running platform assembly comprises a running platform frame in a frame structure, a first running roller assembly and a second running roller are respectively arranged at the position, close to the front end, of the running platform frame and at the rear end, and a running belt is wound and connected between the first running roller assembly and the second running roller; a running board is arranged between the two layers of running belts, and the bottom of the running board is connected with the running platform frame through the platform frame buffer rubber;

a rear shock absorption component is arranged between the bottom of the rear end of the running board and the running platform frame; the front end of the running platform frame is provided with a front shock absorption system;

set up between underframe subassembly and the suspension running platform subassembly front end and be used for adjusting the lifting assembly of suspension running platform subassembly front end height.

2. The mechanically suspended treadmill of claim 1, wherein the first running roller assembly comprises a first spindle fixedly attached to the treadmill frame;

the first mandrel is coaxially and rotatably connected with a first roller;

a first driving wheel and a first belt pulley are respectively and coaxially arranged at two ends of the first roller; the first belt pulley is coaxially and fixedly connected with the first roller; the inner wall surface of the first transmission wheel is fixedly connected with the outer ring of the one-way bearing, the inner ring of the one-way bearing is fixedly connected with one end of the outer wall surface of the connecting sleeve, the other end of the outer wall surface of the connecting sleeve is fixedly connected with the first roller, and the inner wall surface of the connecting sleeve is in clearance fit with the first mandrel; the first pulley is connected to the drive mechanism.

3. The mechanically suspended running machine as claimed in claim 2, wherein the lifting member comprises a lifting welded pipe, and lifting welded plates are fixedly arranged at both ends of the lifting welded pipe; two ends of the lifting welding plate are rotatably provided with lifting rotating shafts;

the lifting rotating shafts positioned at the front ends of the two lifting welding plates are respectively hinged with the bottom frame component; the lifting rotating shafts positioned at the rear ends of the two lifting welding plates are respectively hinged with the running platform welding plates on the two sides of the running platform frame;

the middle part of the lifting welded pipe is hinged with a lifting sleeve;

the inner wall surface of the lifting sleeve is in threaded connection with a lifting screw rod, and the top of the lifting screw rod is coaxially and fixedly connected with a rotating shaft of a lifting motor;

the motor casing of the lifting motor is connected with the front shock absorption system.

4. The mechanically suspended treadmill of claim 3,

the front shock absorption system comprises a front shock absorption assembly and a rack assembly in transmission connection with the first transmission wheel;

the front shock absorption assembly comprises a front support fixedly connected with the front end of the running platform frame, and two guide pillars vertically extending upwards are arranged on the front support; a front buffer spring is sleeved on the guide post;

the rack component comprises a transmission part which is used for being in transmission connection with the first transmission wheel; one end of the transmission piece is fixedly connected with the rack welding pipe, the other end of the rack welding pipe is provided with two linear bearings which are respectively in sliding fit with the two guide pillars, and the linear bearings are positioned at the lower part of the front buffer spring.

5. The mechanically suspended treadmill of claim 4,

the motor shell of the lifting motor is hinged with the rack U-shaped plate, and the rack U-shaped plate is connected with the rack welded pipe;

the first driving wheel is a first gear, the driving part is a rack, and the first gear is meshed with the rack;

the front bracket is a front U-shaped bracket; the hinged shaft of the rack U-shaped plate and the lifting motor is positioned at the lower part of the upper wallboard of the front U-shaped frame.

6. The mechanically suspended treadmill of claim 4,

the motor shell of the lifting motor is hinged with the rack U-shaped plate, and the rack U-shaped plate is connected with the rack welded pipe;

the first driving wheel is a first synchronous belt wheel; the transmission part is a rack;

a transmission piece in the rack assembly is in transmission connection with the first synchronous belt wheel through a transmission assembly;

the transmission assembly comprises a transmission shaft, two ends of the transmission shaft are provided with bearing supports fixedly connected with the running platform frame, and the transmission shaft is rotatably connected with the bearing supports; two ends of the transmission shaft are respectively and coaxially and fixedly provided with a transmission gear and a second synchronous belt wheel;

the transmission gear is meshed with the rack and connected with the rack, and the second synchronous belt wheel is in transmission connection with the first synchronous belt wheel through a synchronous belt.

7. The mechanically suspended treadmill of claim 2,

the first driving wheel is a first gear;

the lifting assembly comprises a welding rod, and welding plates are fixedly arranged at two ends of the welding rod; two ends of the welding plate are respectively provided with a welding shaft and a second bearing; the middle part of the welding rod is provided with a nut, and the nut is in threaded fit with the lead screw;

the front shock absorption system comprises a connecting rod assembly, the connecting rod assembly comprises a connecting rod, two ends of the connecting rod are respectively connected with one end of a connecting plate, and the other end of the connecting plate is rotatably connected with a rotating shaft on the running platform frame; the connecting rods at the inner sides of the two connecting plates are provided with connecting rings; a connecting rod rack which is used for being meshed and connected with the first gear is arranged on the connecting plate on one side;

the welding shafts on the two welding plates are respectively hinged with the bottom frame assembly; the second bearings on the two welding plates are rotatably connected with the connecting rod;

the bottom end of the lead screw is in contact connection with the bottom frame component;

the upper end and the lower end of the connecting ring are respectively provided with a front steel plate spring and a front steel plate bent plate; the top end of the front steel plate bent plate is fixedly connected with a front steel plate spring, and the front steel plate spring is fixedly connected with the running platform frame; a pressure spring is arranged between the front steel plate spring and the running plate.

8. The mechanically suspended treadmill of claim 4,

the motor shell of the lifting motor is hinged with the rack U-shaped plate, and the rack U-shaped plate is connected with the running platform frame;

the first driving wheel is a first gear; the transmission part is a rack, and the first gear is meshed with the rack;

the front bracket is two bracket welding plates which are arranged in parallel up and down; the hinged shaft of the rack U-shaped plate and the lifting motor is positioned at the upper part of the upper bracket welding plate;

rack hinged plates are symmetrically arranged on the rack welded pipe outside the two linear bearings in the rack assembly;

the middle part of the lifting welded pipe is provided with a lifting U-shaped frame, and lifting hinged plates are symmetrically arranged on the lifting welded pipe at two sides of the lifting U-shaped frame;

and the corresponding rack hinged plate is hinged with the lifting hinged plate.

9. The mechanically suspended treadmill of claim 3,

the first driving wheel is a synchronous belt wheel;

the front shock absorption system comprises a front shock absorption assembly, the front shock absorption assembly comprises a front U-shaped frame fixedly connected with the front end of the running platform frame, and two guide columns which vertically extend upwards are arranged on the front U-shaped frame; a front buffer spring is sleeved on the guide post; linear bearings are arranged on guide pillars at the lower part of the front buffer spring, rack U-shaped plates are arranged at the upper parts of the two linear bearings, and the rack U-shaped plates are hinged with a motor shell of the lifting motor;

a third synchronous belt wheel is arranged on the lifting rotating shaft which is connected with the running platform frame and is positioned at the same end with the synchronous belt wheel; the synchronous belt wheel is in transmission connection with the third synchronous belt wheel through a transmission belt.

10. The mechanically suspended running machine as claimed in any one of claims 1 to 9, wherein the rear shock absorbing members are provided in pairs at left and right ends of the running deck frame;

the rear shock absorption assembly comprises a rear steel plate spring fixedly connected with the running platform frame, a rear buffer spring is arranged at the upper part of the rear steel plate spring, a rear connecting joint is arranged at the top part of the rear buffer spring, and the rear connecting joint is in contact connection with the bottom end of the running board; the bottom of the back steel plate spring is provided with a roller component.

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