CN203663353U - Marking-time leg exercise machine - Google Patents
Marking-time leg exercise machine Download PDFInfo
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- CN203663353U CN203663353U CN201320805264.5U CN201320805264U CN203663353U CN 203663353 U CN203663353 U CN 203663353U CN 201320805264 U CN201320805264 U CN 201320805264U CN 203663353 U CN203663353 U CN 203663353U
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- pedal
- frame
- spring
- cam
- marking
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Abstract
The utility model relates to fitness equipment, and discloses a marking-time leg exercise machine. The marking-time leg exercise machine comprises a machine frame, a pedal, a constant-moment balance mechanism and a transmission mechanism. The machine frame comprises a top frame, a side frame and a base, wherein the top frame, the side frame and the base are connected together. The pedal is formed by connecting a vertical rod and a horizontal pedal body and is hinged to the side frame through connection rods to form a parallel four-rod mechanism. The constant-moment balance mechanism comprises a cam, a spring and a steel wire rope. The transmission mechanism comprises a transmission wheel and a flexible transmission element. The bottom end of the spring is fixed to the side frame, and the top end of the spring is connected with the outer contour of the cam through the steel wire rope. The cam is fixedly connected with the transmission wheel into a whole and installed on the machine frame through an axle. The transmission wheel is hinged to the top end of the vertical rod of the pedal through the flexible transmission element. The marking-time leg exercise machine can guarantee that the horizontal pedal body of the pedal is always arranged at the horizontal position in the marking-time process, the soles of leg exercisers can step on the pedal and step down the pedal horizontally, use is comfortable, the pedaling force can be always constant, and pedaling is easy. The marking-time leg exercise machine is suitable for fitness of the old people.
Description
Technical field
The utility model relates to a kind of health and fitness facilities, especially a kind of novel strong leg machine of marking time.
Background technology
The schematic diagram of mechanism of tradition treadmills as shown in Figure 1.In Fig. 1,16 is pedal, and 17 is spring, and 18 is frame.Wherein, spring is extension spring, and some treadmills are placed on spring 17 under pedal 16, and spring at this moment should be Compress Spring.
No matter spring be up stretch or below be compression, both have no essential distinction, the effect of the strong leg of marking time does not have a bit difference.The defect of this traditional treadmills is:
(1) pedal cannot keep level, causes strong leg person's sole can not level to be set foot on and depresses, and brings many discomforts to body builder.
(2) while pedaling under body builder sets foot on pedal and exerts oneself, spring 17 extends gradually thereupon or gradually reduces, make thus the elastic restoring force of spring increase gradually, the person of marking time steps on and will become more and more difficult under continuing, this is just not suitable for physical fitness of old man very much, because exerted oneself to cause the kneed acceleration damage of the elderly.
Utility model content
The technical problems to be solved in the utility model is: the one strong leg machine of marking time is provided, and cannot maintenance level to solve above-mentioned pedal that prior art exists, scrunch difficult weak point.
The technical scheme solving the problems of the technologies described above is: one is marked time and is good for leg machine, comprise frame, pedal, described frame comprises the upper frame, bogie side frame and the base that link together, described pedal is formed by connecting by montant and horizontal pedal, and this pedal is by the hinged formation parallelogram lindage of bogie side frame of two connecting rods parallel and equal in length and frame; The described strong leg machine of marking time also comprises rack-mounted constant moment of force balanced controls, and these constant moment of force balanced controls are connected with the montant of pedal by transmission mechanism.
Further technical scheme of the present utility model is: described constant moment of force balanced controls comprise cam, spring, steel wire rope, and described transmission mechanism comprises drive and Flexible Transmission element; The spring bottom of described constant moment of force balanced controls is fixed on by support on the bogie side frame of frame, and the top of spring is connected with the exterior contour of cam by steel wire rope; The drive of cam and transmission mechanism connects firmly as a whole, and this drive, cam are arranged on by wheel shaft on the bogie side frame of frame; Described drive is hinged by the montant top of Flexible Transmission element and pedal.
Further technical scheme of the present utility model is: described in to have spring be cylindroid helical-coil extension spring.
Further technical scheme more of the present utility model is: handgrip is also installed on the upper frame of described frame.
Owing to adopting said structure, marking time of the utility model is good for leg machine compared with prior art, has following beneficial effect:
1. use comfortable:
Because the strong leg machine of marking time of the utility model comprises frame, pedal, constant moment of force balanced controls, wherein pedal is by the hinged formation parallelogram lindage of bogie side frame of two connecting rods parallel and equal in length and frame, thereby can guarantee to mark time time, the horizontal pedal of pedal be always horizontal, strong leg person's sole energy level is set foot on and depressed, use as snug as a bug in a rug.
2. can make pedal force remain steady state value:
Because the utility model comprises frame, pedal, constant moment of force balanced controls, wherein constant moment of force balanced controls comprise cam, spring, steel wire rope, and these constant moment of force balanced controls are connected with the montant of pedal by drive, the Flexible Transmission element of transmission mechanism.When use, when foot pedal moves down it, Flexible Transmission element drives drive and cam to clockwise rotate around fixing hinge center, so cam makes wirerope-winding the spring with certain incipient extension amount to continue to stretch, its restoring force increases thereupon.But due to after the steel wire rope of spring one end is wound, the radius vector at its point of contact place reduces, make spring restoring force to the moment of the cam centre of gyration unchanged.Hence one can see that, and the utility model can guarantee that pedal force remains steady state value, even if body builder steps on it firmly too under continuing, scrunches than being easier to, and is very suitable for physical fitness of old man.
3. predeterminable exercise intensity:
Constant moment of force balanced controls of the present utility model comprise cam, spring, steel wire rope, by adjust the prestretched amount of spring can preset body builder institute must exercise intensity, crowd's use that makes it can be suitable for respectively all ages and classes section.
4. simple and reasonable, be easy to promote the use of:
Structure of the present utility model is more reasonable, also on the upper frame of frame, handgrip is installed, and makes body builder very easy to use.And simple structure, production cost is low, is easy to promote the use of.
Below, the technical characterictic of the strong leg machine of marking time to the utility model is further described in conjunction with the accompanying drawings and embodiments.
Brief description of the drawings
Fig. 1: the structure diagram of traditional treadmills;
Fig. 2-Fig. 3: the structure diagram of the strong leg machine of marking time of the utility model,
Fig. 2: front view, the left view of Fig. 3: Fig. 2.
In figure, each label is as follows:
1-pedal, 101-montant, 102-horizontal pedal, 2,3-connecting rod, 4-Flexible Transmission element,
5-drive, 6-cam, 7-spring, 8-steel wire rope, 9-cramp bar, 10-handgrip,
11-frame, 12-base, 13-bogie side frame, 14-upper frame, 15-axle sleeve,
16-pedal, 17-spring, 18-frame,
Q in Fig. 1 is pedaled power under being, the direction of arrow is pedaled the direction of power under being.
Detailed description of the invention
Embodiment mono-:
One is marked time and is good for leg machine, comprises frame 11, pedal 1, constant moment of force balanced controls, transmission mechanism, and described frame 11 comprises the upper frame 14, bogie side frame 13 and the base 12 that link together, and cramp bar 9 is installed on bogie side frame 13, and handgrip 10 is installed on upper frame 14.Described pedal 1 is formed by connecting by montant 101 and horizontal pedal 102, this pedal 1 is by the hinged formation parallelogram lindage of bogie side frame 13 of two connecting rods 2,3 parallel and equal in length and frame, thereby the horizontal pedal 102 of the pedal 1 can guarantee to mark time time is always horizontal; Described constant moment of force balanced controls comprise cam 6, spring 7, steel wire rope 8, and its medi-spring 7 is cylindroid helical-coil extension spring; Described transmission mechanism comprises drive 5 and Flexible Transmission element 4, and wherein drive 5 is sprocket wheel, and Flexible Transmission element 4 is chain; Spring 7 bottoms of described constant moment of force balanced controls are fixed on by support on the bogie side frame 13 of frame, and the top of spring 7 is connected with the exterior contour of cam 6 by steel wire rope 8; The drive 5 of cam 6 and transmission mechanism connects firmly as a whole, and this drive 5, cam 6 are arranged on by wheel shaft on the bogie side frame 13 of frame 11; Described drive 5 is hinged by Flexible Transmission element 4 and montant 101 tops of pedal 1.In the time that cam 6 clockwise rotates, the tangent point of contact place radius vector of steel wire rope 8 and cam 6 will reduce thereupon, thereby can guarantee that extension spring 7 is constant to the torque keeping of cam 6 centres of gyration.
After treadmills is in place, must make spring 7 obtain certain initial pretension, to guarantee that pedal is positioned at body builder and lifts the foot-operated the highest original position walking; By adjust the prestretched amount of this spring 7 can preset body builder must exercise intensity.
Pedal 1, handgrip 10, constant moment of force balanced controls, transmission mechanism that this treadmills comprises are two covers, can mark time for body builder left and right bipod.
As the one conversion of the present embodiment one, described drive 5 can also be also rope sheave, and described Flexible Transmission element 4 can be also steel wire rope.
Operation principle of the present utility model is:
When foot pedal 1 moves down it, Flexible Transmission element 4 drives drive 5 and cam 6 to clockwise rotate around fixing hinge center, makes the spring 7 with certain incipient extension amount continue to stretch so cam 6 is wound around steel wire rope 8, and its restoring force increases thereupon.But due to after the steel wire rope of spring one end is wound, the radius vector at its point of contact place reduces, make spring restoring force to the moment of the cam centre of gyration unchanged.Hence one can see that, and the force retaining that footstep body-building person pin acts on pedal is constant.Now further theory analysis is described below.
If before not yet marking time, the incipient extension amount of spring 7 is
, the person's of marking time the total travel of marking time is divided into
decile, the amount of tension of the corresponding spring 7 of its each decile is
, the rigidity of this spring 7 is made as
.Guarantee for this reason power that the person of marking time acts on pedal all the time constant condition be
In above formula,
for cam 6 with connect firmly the initial radius vector at spring 7 one end steel wire rope 8 tangent places;
for in pedal travel
individual isodisperse, and
.Conversely, can according to above formula must satisfied condition calculate
,
,
,
,,,
, can draw thus the contour curve of cam 6.
Claims (4)
1. the strong leg machine of marking time, comprise frame (11), pedal (1), it is characterized in that: described frame (11) comprises the upper frame (14), bogie side frame (13) and the base (12) that link together, described pedal (1) is formed by connecting by montant (101) and horizontal pedal (102), and this pedal (1) is the hinged formation parallelogram lindage of bogie side frame (13) with frame by two connecting rods parallel and equal in length (2,3); The described strong leg machine of marking time also comprises rack-mounted constant moment of force balanced controls, and these constant moment of force balanced controls are connected with the montant (101) of pedal (1) by transmission mechanism.
2. the strong leg machine of marking time according to claim 1, is characterized in that: described constant moment of force balanced controls comprise cam (6), spring (7), steel wire rope (8), and described transmission mechanism comprises drive (5) and Flexible Transmission element (4); The bogie side frame (13) that spring (7) bottom of described constant moment of force balanced controls is fixed on frame by support is upper, and the top of spring (7) is connected with the exterior contour of cam (6) by steel wire rope (8); The drive (5) of cam (6) and transmission mechanism connects firmly as a whole, and this drive (5), cam (6) are arranged on by wheel shaft on the bogie side frame (13) of frame (11); Described drive (5) is hinged by Flexible Transmission element (4) and montant (101) top of pedal (1).
3. the strong leg machine of marking time according to claim 2, is characterized in that: described in to have spring (7) be cylindroid helical-coil extension spring.
4. according to the strong leg machine of marking time described in claim 1 or 2 or 3, it is characterized in that: on the upper frame (14) of described frame, handgrip (10) is also installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320805264.5U CN203663353U (en) | 2013-12-09 | 2013-12-09 | Marking-time leg exercise machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320805264.5U CN203663353U (en) | 2013-12-09 | 2013-12-09 | Marking-time leg exercise machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203663353U true CN203663353U (en) | 2014-06-25 |
Family
ID=50959692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320805264.5U Expired - Fee Related CN203663353U (en) | 2013-12-09 | 2013-12-09 | Marking-time leg exercise machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203663353U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611257A (en) * | 2013-12-09 | 2014-03-05 | 广西科技大学 | Stepping leg-exercising machine |
| CN106139532A (en) * | 2016-08-31 | 2016-11-23 | 孝俊梅 | A kind of cardiovascular patient limb muscle anti-atrophy exercising apparatus |
| CN106539668A (en) * | 2017-01-11 | 2017-03-29 | 刘建英 | A kind of gait rehabilitation training devicess |
-
2013
- 2013-12-09 CN CN201320805264.5U patent/CN203663353U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611257A (en) * | 2013-12-09 | 2014-03-05 | 广西科技大学 | Stepping leg-exercising machine |
| CN106139532A (en) * | 2016-08-31 | 2016-11-23 | 孝俊梅 | A kind of cardiovascular patient limb muscle anti-atrophy exercising apparatus |
| CN106139532B (en) * | 2016-08-31 | 2019-05-31 | 孝俊梅 | A kind of anti-atrophy exercising apparatus of cardiovascular patient limb muscle |
| CN106539668A (en) * | 2017-01-11 | 2017-03-29 | 刘建英 | A kind of gait rehabilitation training devicess |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20151209 |
|
| EXPY | Termination of patent right or utility model |