CN110585656B - Double-stage suspension shock absorption structure and method of running machine - Google Patents
Double-stage suspension shock absorption structure and method of running machine Download PDFInfo
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- CN110585656B CN110585656B CN201910849239.9A CN201910849239A CN110585656B CN 110585656 B CN110585656 B CN 110585656B CN 201910849239 A CN201910849239 A CN 201910849239A CN 110585656 B CN110585656 B CN 110585656B
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- 239000000725 suspension Substances 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000035939 shock Effects 0.000 title claims description 19
- 238000010521 absorption reaction Methods 0.000 title description 2
- 238000013016 damping Methods 0.000 claims abstract description 82
- 239000000463 material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 210000003127 knee Anatomy 0.000 abstract description 4
- 230000000007 visual effect Effects 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/02—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills
- A63B22/0207—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills having shock absorbing means
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/02—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills
- A63B22/0207—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills having shock absorbing means
- A63B22/0214—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills having shock absorbing means between the belt supporting deck and the frame
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/02—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills
- A63B22/0207—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills having shock absorbing means
- A63B22/0228—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills having shock absorbing means with variable resilience
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- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a two-stage suspension damping structure and a method of a running machine, wherein the structure comprises a running table main body and an underframe, the running table main body comprises a running plate and left and right profiles, the left and right ends of the running plate are correspondingly connected with the left and right profiles through a plurality of first-stage suspension damping devices which are distributed at intervals in the front-back direction, and the left and right profiles of the running table main body are correspondingly connected with the left and right sides of the underframe through a plurality of second-stage suspension damping devices which are distributed at intervals in the front-back direction. The running board is not directly and rigidly connected with the section bar by utilizing the first-stage suspension damping device, the damping purpose is achieved by extruding the first-stage suspension damping device, the running board main body is not directly and rigidly connected with the underframe by utilizing the second-stage suspension damping device, the damping purpose is achieved by extruding the second-stage suspension damping device, the whole damping effect is good, the knees of a user are protected, the running experience of the user is improved, and an extremely visual experience effect is created for the user to watch a screen.
Description
Technical Field
The invention belongs to the technical field of treadmill damping, and particularly relates to a double-stage suspension damping structure and method of a treadmill.
Background
At present, the treadmill (including walking machine) shock attenuation mode on the market all is through the rubber of assembly between frame and running board buffering shock attenuation, and the running platform main part is directly hard mechanical connection with the frame, and the shock attenuation effect of rubber is discounted greatly like this, and the vibrations that the user produced at the motion of running bench are only a small amount absorbed by rubber, and most vibrations are transmitted in the frame and produce resonance, lead to the complete machine to take place to shake, are unfavorable for the user to watch screen content very much, and visual experience is very poor, runs experience effect very poor, also can produce the injury to user's knee for a long time. For this reason, it is necessary to develop a new damping means.
Disclosure of Invention
In view of the shortcomings of the prior art, the present invention aims to provide a dual-stage suspension damping structure and method for a running machine, so as to solve the above technical problems.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a treadmill doublestage suspension shock-absorbing structure, includes running platform main part and chassis, the running platform main part contains running board and controls two sections, the both ends correspond with controlling two sections through a plurality of front and back interval distribution's first order suspension damping device respectively and be connected, the both sides correspond with the chassis about two sections about running platform main part respectively through a plurality of front and back interval distribution's second order suspension damping device.
Preferably, a plurality of first vertical through holes which are distributed at intervals from front to back are respectively formed in the left end and the right end of the running board, the section bar is provided with a supporting plate for supporting the end part of the running board, a plurality of second vertical through holes which are concentric with the corresponding first vertical through holes are formed in the supporting plate, and the first-stage suspension damping device is fixedly connected between the first vertical through holes and the corresponding second vertical through holes.
Still preferably, the first-stage suspension damping device comprises an elastic column and at least one fixing piece, an annular groove is formed in the periphery of the upper portion of the elastic column, a necking portion is formed in the annular groove of the elastic column, the necking portion is fixedly embedded into the first vertical through hole, the outer diameters of the upper side wall and the lower side wall of the annular groove are both larger than the inner diameter of the first vertical through hole, a third vertical through hole is formed in the center of the elastic column, and the third vertical through hole is fixedly connected with the corresponding second vertical through hole through the fixing piece.
Still further preferably, the first-stage suspension damping device includes a first fixing member, a second fixing member and the elastic column, one of the first fixing member and the second fixing member sequentially passes through one of the second vertical through hole and the third vertical through hole, and the other of the second vertical through hole and the third vertical through hole and then is fixedly connected with the other of the first fixing member and the second fixing member, and the fixed connection between the first fixing member and the second fixing member is detachable.
Preferably, the first fixing piece is in a T shape, the first fixing piece comprises a first rod part and a first head part, the first rod part is provided with a vertical threaded hole, the vertical threaded hole is provided with internal threads, the first head part clamps the top surface of the elastic column, the size of the first head part is larger than the inner diameter of the first vertical through hole, and the first rod part extends into the third vertical through hole; the second mounting is the bolt, the bolt contains second pole portion and second head, second pole portion have with internal thread matched with external screw thread, the bottom surface of backup pad is blocked to the second head, second pole portion penetrates second vertical through-hole and the vertical through-hole of third in proper order.
Preferably, the first fixing piece is a nut, and the central through hole of the nut is provided with internal threads; the second mounting is the bolt, the bolt contains second pole portion and second head, second pole portion have with internal thread matched with external screw thread, the bottom surface of backup pad is blocked to the second head, second pole portion penetrates second vertical through-hole and the vertical through-hole of third in proper order.
Preferably, the second-stage suspension damping device comprises a damping support, a fixing support and a fastening assembly, wherein the damping support comprises an elastic block and a movable support, the movable support fixedly penetrates through the front side and the rear side of the upper portion of the elastic block, first mounting holes are respectively formed in the front end and the rear end of the movable support, the first mounting holes are fixedly connected with first threaded holes of the sectional materials through first bolts, the lower portion of the elastic block is movably hinged to the upper portion of the fixing support through the fastening assembly, the damping support can swing back and forth relative to the fixing support, at least two second mounting holes are formed in the lower portion of the fixing support, and the second mounting holes are fixedly connected with second threaded holes of the underframe through second bolts.
Further preferably, the fixing support is in a U shape, the fixing support comprises a bottom plate, a left side plate and a right side plate, the second mounting hole is formed in the bottom plate, a first transverse through hole for hinging is formed in the left side plate, a second transverse through hole for hinging is formed in the right side plate, and the second transverse through hole is concentric with the first transverse through hole; the lower part of the elastic block is provided with a third transverse through hole for hinging, the fastening component comprises a bolt, the rod part of the bolt sequentially penetrates through one of the first transverse through hole and the second transverse through hole, the third transverse through hole, the first transverse through hole and the other of the second transverse through hole and then is locked, and the rod part of the bolt is in clearance fit with the third transverse through hole.
Preferably, the running plate is an elastic plate.
The invention also provides a two-stage suspension damping method of the running machine, which comprises the following steps of:
(1) A plurality of first-stage suspension damping devices which are distributed at intervals from front to back are arranged between the left end and the right end of the running board main body and between the left section bar and the right section bar, and the left section bar and the right section bar support the left end and the right end of the running board through the first-stage suspension damping devices respectively so as to achieve first-stage suspension damping;
(2) The second-stage suspension damping devices are arranged between the left section bar and the right section bar of the running table main body and the left side and the right side of the underframe at intervals, and the left side and the right side of the underframe support the left section bar and the right section bar through the second-stage suspension damping devices respectively, so that second-stage suspension damping is achieved.
Compared with the prior art, the invention has the following beneficial effects: this treadmill doublestage suspension shock-absorbing structure modern design, convenient assembly utilizes the first level suspension damping device that presss from both sides between running board and section bar to make running board not with the direct rigid connection of section bar, reach the shock attenuation purpose through the first level suspension damping device in the middle of the extrusion, utilize the second level suspension damping device that presss from both sides between running board main part and chassis to make running board main part not with the direct rigid connection of chassis, reach the shock attenuation purpose through the second level suspension damping device of extrusion, whole shock attenuation is effectual, the running board main part reaches the effect of suspension, be favorable to protecting user's knee, user's running experience has been promoted, the chassis is hardly influenced by vibrations, watch the screen for the user and build a very little visual experience effect.
Drawings
FIG. 1 is an overall assembly view of an embodiment of the present invention.
Fig. 2 is an exploded view of a partial structure of an embodiment of the present invention.
Fig. 3 is an assembly view of a second stage suspension damper and chassis according to an embodiment of the present invention.
Fig. 4 is an exploded view of a part of the structure of the treadmill body according to the embodiment of the present invention.
Fig. 5 is an assembly view of a running deck, a first stage suspension cushioning apparatus and a profile according to an embodiment of the present invention.
Fig. 6 is an assembled cross-sectional view of a running deck, a first stage suspension cushioning apparatus, and a support plate according to an embodiment of the present invention.
Fig. 7 is a partial enlarged view of fig. 6.
Fig. 8 is a structural assembly view of a second stage suspension damper according to an embodiment of the present invention.
Fig. 9 is an exploded view of the construction of a second stage suspension damper according to an embodiment of the present invention.
Reference numerals: 100. a treadmill body; 110. a running board; 111. a first vertical through hole; 112. a running belt; 113. a roller; 120. a section bar; 121. a support plate; 1211. a second vertical through hole; 130. a first-stage suspension damping device; 131. an elastic column; 1311. an annular groove; 1312. a third vertical through hole; 132. a fixing member; 133. a first fixing member; 1331. a vertical threaded hole; 134. a second fixing member; 200. a chassis; 300. a second-stage suspension damping device; 310. a shock absorbing bracket; 311. an elastic block; 3111. a third transverse through hole; 312. a movable bracket; 3121. a first mounting hole; 320. a fixed bracket; 321. a bottom plate; 3211. a second mounting hole; 322. a left side plate; 3221. a first lateral through hole; 323. a right side plate; 3231. a second transverse through hole; 330. a fastening assembly; 331. a bolt; 332. and (3) a nut.
Detailed Description
In order to make the above features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1 to 3, the present embodiment provides a two-stage suspension damping structure of a running machine, which includes a running table main body 100 and a bottom frame 200, wherein the running table main body 100 includes a running plate 110 and two left and right sections 120, and the left and right ends of the running plate 110 are respectively connected with the two left and right sections 120 through a plurality of (e.g. five) first-stage suspension damping devices 130 (preferably but not limited to, but of course, also can be distributed at unequal intervals) in a front-back interval manner, and the left and right sections of the running table main body 100 are respectively connected with the left and right sides of the bottom frame 200 through a plurality of (e.g. two) second-stage suspension damping devices 300 (preferably but not limited to, but of course, can also be distributed at unequal intervals) in a front-back interval manner. The running board is preferably but not limited to an elastic board, and the elastic board has elastic deformation and can also play a role in damping and buffering, so that the running board and the first-stage suspension damping device 130 can comprehensively achieve the suspension damping effect; the profile 120 is preferably but not limited to an aluminum profile, but also can be other alloys, metals, etc. which are rigid and light, and the profile 120 is not deformed; the bottom of the chassis 200 may be provided with a plurality of uniformly distributed elastic pads (not shown), which are preferably but not limited to rubber pads, for buffering and damping, and the second-stage suspension damping device 300 may be located right above the elastic pads, so that force is transmitted to the ground through a vertical direction, and the whole machine is hardly affected by vibration.
In this embodiment, as shown in fig. 4 to 7, a row of first vertical through holes 111 are respectively formed at the left and right ends of the running board 110, which are distributed at intervals from front to back, the profile 120 is provided with a support plate 121 for supporting the end of the running board 110, the support plate 121 is a part of the body of the profile 120, a row of second vertical through holes 1211 concentric with the corresponding first vertical through holes 111 are formed on the support plate 121, and the first-stage suspension damping device 130 is fixedly connected between the first vertical through holes 111 and the corresponding second vertical through holes 1211.
In this embodiment, the first-stage suspension damping device 130 includes an elastic column 131 and at least one fixing member 132, an annular groove 1311 is formed on the outer periphery of the upper portion of the elastic column 131, the elastic column 131 forms a neck portion at the annular groove 1311, the neck portion is fixedly embedded in the first vertical through hole 111 (clearance fit between the two), the outer diameters of the upper side wall and the lower side wall of the annular groove 1311 are both greater than the inner diameter of the first vertical through hole 111, a third vertical through hole 1312 is arranged in the center of the elastic column 131, and the third vertical through hole 1312 is fixedly connected with the corresponding second vertical through hole 1211 through the fixing member 132.
In the present embodiment, for convenience in manufacturing and cost reduction, the elastic column 131 is preferably but not limited to a rubber column, and the elastic column 131 is preferably but not limited to a circular column; of course, in other embodiments, the elastic post 131 may be a spring sleeved in the middle of the rubber ring. To facilitate the snap-in of the elastic post 131 into the first vertical through hole 111, the upper sidewall thickness of the annular groove 1311 is preferably, but not limited to, thinner than the lower sidewall thickness, and the upper sidewall outer diameter of the annular groove 1311 is smaller than the lower sidewall outer diameter. In order to improve the deformation buffering effect of the elastic column 131, a rounded corner is arranged at the lower part of the elastic column 131, namely, the outer diameter of the lower part of the elastic column 131 gradually increases from bottom to top, and the deformation gap is large.
In this embodiment, in order to facilitate disassembly and assembly, the first-stage suspension damping device 130 includes a first fixing member 133, a second fixing member 134, and an elastic column 131, where one of the first fixing member 133 and the second fixing member 134 sequentially passes through one of the second vertical through hole 1211 and the third vertical through hole 1312, and the other of the second vertical through hole 1211 and the third vertical through hole 1312, and then is fixedly connected with the other of the first fixing member 133 and the second fixing member 134. The fixed connection between the first fixing member 133 and the second fixing member 134 is a detachable fixed connection, such as a threaded connection, a snap connection, and the like. Of course, the elastic column 131 may be connected to the support plate 121 by a fixing member, such as a rivet.
In this embodiment, the first fixing member 133 is T-shaped, the first fixing member 133 includes a first rod portion and a first head portion, the first rod portion is provided with a vertical threaded hole 1331, the vertical threaded hole 1331 has an internal thread, and the first rod portion and the second head portion may be integrally manufactured; the first head is preferably, but not limited to, circular (e.g., circular, square, etc. polygonal), and has a dimension (e.g., diameter, length) greater than the inner diameter of the first vertical through hole 111, and the first stem extends into the third vertical through hole 1312 (which is a clearance fit). The second fixing member 134 is a bolt, and the bolt includes a second rod portion and a second head portion, wherein the second rod portion has external threads matched with the internal threads; the second head portion catches the bottom surface of the support plate 121, and the second rod portion sequentially penetrates the second vertical through hole 1211 and the third vertical through hole 1312. Of course, the first fixing member 133 may be a nut, and the central through hole of the nut has an internal thread.
The first-stage suspension damper 130 of the present embodiment operates as follows: since the running board 110 is not directly mechanically and rigidly connected with the supporting board 120 of the profile 120, but is in suspension connection with the first-stage suspension damping device 130, the first-stage suspension damping device 130 can deform; when the user steps down to run the belt 112 in the moment, the running plate 110 drives the elastic column 131 to press down, and the elastic column 131 is extruded because the elastic column 131 is positioned between the running plate 110 and the supporting plate 121, the elastic column 131 absorbs a part of force to deform, and the elasticity existing by the user generates a part of resilience force, so that the purpose of first-stage suspension damping is achieved. The first-stage suspension damping device 130 is simple in structure, novel in design and convenient to assemble, and the elastic column 131 clamped between the running plate 110 and the section bar 120 supporting plate 120 is utilized, so that the running plate 110 is not directly and rigidly connected with the section bar 120, the damping purpose is achieved by extruding the elastic column 131 in the middle, the damping effect is good, the knees of a user are protected, and the user experience is improved.
In this embodiment, as shown in fig. 8 to 9, the second-stage suspension damper 300 includes a damper bracket 310, a fixed bracket 320 and a fastening assembly 330, the damper bracket 310 includes an elastic block 311 and a movable bracket 312, the movable bracket 312 is fixedly inserted into front and rear sides of an upper portion of the elastic block 311, first mounting holes 3121 are respectively formed at front and rear ends of the movable bracket 312, the elastic block 311 is preferably but not limited to a rubber block, and a lower portion of the elastic block 311 is movably hinged with the upper portion of the fixed bracket 320 through the fastening assembly 330, so that the damper bracket 310 can swing back and forth relative to the fixed bracket 320, and at least two second mounting holes 3211 are formed at a lower portion of the fixed bracket 320. Wherein the first mounting hole 3121 is preferably but not limited to a first vertical through hole and the second mounting hole 3211 is preferably but not limited to a second vertical through hole.
In this embodiment, the fixing support 320 is U-shaped, the fixing support 320 includes a bottom plate 321, a left side plate 322 and a right side plate 323, the bottom plate 321, the left side plate 322 and the right side plate 323 are preferably but not limited to being integrally formed, for example, integrally cast, the second mounting holes 3211 are formed on the bottom plate 321, specifically, the front and rear ends of the bottom plate 321 are respectively formed with the second mounting holes 3211, the left side plate 322 is formed with a first transverse through hole 3221 for hinging, the right side plate 323 is formed with a second transverse through hole 3231 for hinging, and the second transverse through hole 3231 is concentric with the first transverse through hole 3221. Wherein, the first transverse through hole 3221 is a round hole, the second transverse through hole 3231 is a round hole, and both can be any one of a cylindrical hole and a stepped round hole.
In this embodiment, the lower portion of the elastic block 311 is provided with a third transverse through hole 3111 for hinging, the fastening assembly 330 includes a bolt 331 and a nut 332, and the rod portion of the bolt 331 sequentially passes through one of the first transverse through hole 3221 and the second transverse through hole 3231, and the other of the third transverse through hole 3111, the first transverse through hole 3221 and the second transverse through hole 3231 is then locked by the nut 332, and the rod portion of the bolt 331 is in clearance fit with the third transverse through hole 3111, so that the elastic block 311 can swing freely around the rod portion of the bolt 331. Wherein the third through hole is a cylindrical hole. In other embodiments, the nut 332 may be omitted, and a threaded hole may be directly formed in the fixing bracket 320, that is, the other of the first lateral through hole 3221 and the second lateral through hole 3231 is a threaded hole.
In this embodiment, the elastic block 311 is injection molded in the middle of the movable bracket 312, so that the movable bracket 312 and the elastic block 311 are fixedly connected into a whole, which is more reliable. The two ends of the movable bracket 312 are respectively tilted upward and are higher than the top surface of the elastic block 311, so that the two ends of the movable bracket 312 are subjected to the pressure of the upper portion, the pressure is transferred to the elastic block 311 through the middle of the movable bracket 312, and the pressure is transferred to the fixed bracket 320 through the bolt 331.
The whole machine of the embodiment can be assembled in a modularized way during manufacturing, so that the assembly is more convenient and faster; the shock absorbing bracket 310 may be mounted on the running board main body 100 in advance, the fixing bracket 320 may be mounted on the bottom frame 200 in advance, and then the shock absorbing bracket 310 on the running board main body 100 is aligned with the fixing bracket 320 on the bottom frame 200, and finally the shock absorbing bracket 310 is connected with the fixing bracket 320 through the fastening assembly 330, so that the modular assembly is simpler.
The second-stage suspension damper 300 of the present embodiment operates as follows: because the running platform main body 100 and the underframe 200 are elastically connected through the plurality of second-stage suspension damping devices 300, when a user moves on the running platform main body 100, the user steps on to instantly squeeze the elastic block 311, the elastic block 311 absorbs a part of force to deform, and the elasticity existing in the elastic block 311 generates a part of resilience force, so that the purpose of second-stage suspension damping is achieved. The multifunctional damping device not only has a good damping effect through deformation of the elastic block, but also has a good rotating function through rotation of the elastic block; the second-stage suspension damping device 300 not only can play a good damping effect through deformation of the elastic block 311, but also can play a good rotating function through rotation of the elastic block 311, can be assembled in a modularized manner, is simplified in assembly, enables the running table main body 100 not to be directly and rigidly connected with the underframe 200, and achieves the damping purpose through extrusion of the elastic block 311.
The embodiment also provides a two-stage suspension damping method of the running machine, which comprises the following steps:
(1) A plurality of first-stage suspension damping devices 130 which are distributed at intervals in the front-back direction are arranged between the left and right ends of the running board 110 and the left and right profiles 120 of the running board main body 100, and the left and right profiles 120 respectively support the left and right ends of the running board 110 through the first-stage suspension damping devices 130 so as to achieve first-stage suspension damping;
(2) A plurality of second-stage suspension damping devices 300 are arranged between the left and right section bars 120 of the running table main body 100 and the left and right sides of the underframe 200 at intervals, and the left and right sides of the underframe 200 respectively support the left and right section bars 120 through the second-stage suspension damping devices 300, so that second-stage suspension damping is achieved.
The above embodiments are merely preferred embodiments of the present invention, and the present invention is not limited thereto, and any simple modification, equivalent changes and variation of the above embodiments according to the technical principles of the present invention should be considered as covered by the present invention by any person skilled in the art without departing from the technical scope of the present invention.
Claims (7)
1. The utility model provides a treadmill doublestage suspension shock-absorbing structure, includes running platform main part and chassis, its characterized in that: the running table main body comprises a running plate and left and right profiles, the left and right ends of the running plate are correspondingly connected with the left and right profiles through a plurality of first-stage suspension damping devices which are distributed at intervals in the front-back direction, and the left and right profiles of the running table main body are correspondingly connected with the left and right sides of the underframe through a plurality of second-stage suspension damping devices which are distributed at intervals in the front-back direction;
the left end and the right end of the running board are respectively provided with a plurality of first vertical through holes which are distributed at intervals from front to back, the section bar is provided with a supporting board for supporting the end part of the running board, the supporting board is provided with a plurality of second vertical through holes which are concentric with the corresponding first vertical through holes, and the first-stage suspension damping device is fixedly connected between the first vertical through holes and the corresponding second vertical through holes;
the first-stage suspension damping device comprises an elastic column and at least one fixing piece, wherein an annular groove is formed in the periphery of the upper part of the elastic column, a necking part is formed in the annular groove of the elastic column, the necking part is fixedly embedded in a first vertical through hole, the outer diameters of the upper side wall and the lower side wall of the annular groove are both larger than the inner diameter of the first vertical through hole, a third vertical through hole is formed in the center of the elastic column, and the third vertical through hole is fixedly connected with the corresponding second vertical through hole through the fixing piece;
the second-stage suspension damping device comprises a damping support, a fixing support and a fastening component, wherein the damping support comprises an elastic block and a movable support, the movable support fixedly penetrates through the front side and the rear side of the upper portion of the elastic block, first mounting holes are respectively formed in the front end and the rear end of the movable support, the first mounting holes are fixedly connected with first threaded holes of the sectional materials through first bolts, the lower portion of the elastic block is movably hinged to the upper portion of the fixing support through the fastening component, the damping support can swing back and forth relative to the fixing support, at least two second mounting holes are formed in the lower portion of the fixing support, and the second mounting holes are fixedly connected with second threaded holes of the underframe through second bolts.
2. The treadmill dual-stage suspension shock absorbing structure according to claim 1, wherein: the first-stage suspension damping device comprises a first fixing piece, a second fixing piece and an elastic column, wherein one of the first fixing piece and the second fixing piece sequentially penetrates through one of the second vertical through hole and the third vertical through hole and the other of the second vertical through hole and the third vertical through hole and then is fixedly connected with the other of the first fixing piece and the second fixing piece, and the fixed connection between the first fixing piece and the second fixing piece is detachable.
3. The treadmill dual-stage suspension shock absorbing structure according to claim 2, wherein: the first fixing piece is T-shaped, the first fixing piece comprises a first rod part and a first head part, the first rod part is provided with a vertical threaded hole, the vertical threaded hole is provided with internal threads, the first head part clamps the top surface of the elastic column, the size of the first head part is larger than the inner diameter of the first vertical through hole, and the first rod part stretches into the third vertical through hole; the second mounting is the bolt, the bolt contains second pole portion and second head, second pole portion have with internal thread matched with external screw thread, the bottom surface of backup pad is blocked to the second head, second pole portion penetrates second vertical through-hole and the vertical through-hole of third in proper order.
4. The treadmill dual-stage suspension shock absorbing structure according to claim 2, wherein: the first fixing piece is a nut, and a central through hole of the nut is provided with an internal thread; the second mounting is the bolt, the bolt contains second pole portion and second head, second pole portion have with internal thread matched with external screw thread, the bottom surface of backup pad is blocked to the second head, second pole portion penetrates second vertical through-hole and the vertical through-hole of third in proper order.
5. The treadmill dual-stage suspension shock absorbing structure according to claim 1, wherein: the fixing support is U-shaped, the fixing support comprises a bottom plate, a left side plate and a right side plate, the second mounting hole is formed in the bottom plate, a first transverse through hole for hinging is formed in the left side plate, a second transverse through hole for hinging is formed in the right side plate, and the second transverse through hole is concentric with the first transverse through hole; the lower part of the elastic block is provided with a third transverse through hole for hinging, the fastening component comprises a bolt, the rod part of the bolt sequentially penetrates through one of the first transverse through hole and the second transverse through hole, the third transverse through hole, the first transverse through hole and the other of the second transverse through hole and then is locked, and the rod part of the bolt is in clearance fit with the third transverse through hole.
6. The treadmill dual-stage suspension shock absorbing structure according to claim 1, wherein: the running board is an elastic board.
7. A dual-stage suspension shock absorbing method for a running machine, which adopts the dual-stage suspension shock absorbing structure for the running machine as claimed in claim 1, and is characterized by comprising the following steps:
(1) A plurality of first-stage suspension damping devices which are distributed at intervals from front to back are arranged between the left end and the right end of the running board main body and between the left section bar and the right section bar, and the left section bar and the right section bar support the left end and the right end of the running board through the first-stage suspension damping devices respectively so as to achieve first-stage suspension damping;
(2) The second-stage suspension damping devices are arranged between the left section bar and the right section bar of the running table main body and the left side and the right side of the underframe at intervals, and the left side and the right side of the underframe support the left section bar and the right section bar through the second-stage suspension damping devices respectively, so that second-stage suspension damping is achieved.
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| KR200495349Y1 (en) * | 2020-09-11 | 2022-05-03 | 권성률 | Treadmill with buffer pillars |
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