CN2815432Y - Structure improvment of running machine - Google Patents

Abstract

The utility model relates to a kind of structural improvement of treadmills, especially the treadmills that refers to a kind of tool return mechanism, it is to utilize inert gas to sneak into hydraulic oil and be filled in the oil hydraulic cylinder of treadmills, the outer-shell electron of inert gas own has reached saturated, active minimum, so stability is splendid, when the piston rod of treadmills is subjected to the application of force, the piston of its front end can push hydraulic oil and the inert gas in the oil hydraulic cylinder that is filled in treadmills, based on the air supporting principle, this inert gas can become a pressure source and promote hydraulic oil, and this inert gas also is compressed and causes expansion, after piston rod is eliminated the application of force, be subjected to the inert gas of compression swelling can obtain an answer elastic force pressure, piston structure is returned back to be not subjected to the preceding aspect of the application of force.

Description

The structural improvement of treadmills

Technical field

The utility model relates to a kind of structural improvement of treadmills, it is to utilize the distinctive stability of inert gas to sneak in the oil hydraulic cylinder, after the compressed expansion of inert gas, can obtain one and reply elastic force pressure, reply the alternative known elastic parts of elastic force pressure by this, remedy causing anxiety of the flexible fatigue of known elastic parts, and simplify the mould design and reduce manufacturing cost.

Background technology

Consult shown in Figure 1, it is the bar linkage structure that known tool is replied effect, constituted by a body of rod 21, an outer shaft 23, an internal axle sleeve 22, a knob 24, a trace 25, an elastic parts 26 and a nut 27, wherein these body of rod 21 1 ends are to be provided with screw thread 210 can make the usefulness that locks, and the other end of this body of rod 21 can be inserted in and become a piston structure in the outer shaft 23; Outer shaft 23 nearly end surfaces are formed with a microscler short slot 230,230 2 side near-end edge places protrude out the two pivot ears 232 that are formed with perpendicular to outer shaft 23 tube walls in short slot, protrude out formation in outer shaft 23 nearly other end surfaces and are the pivot ear 234 of a straight line perpendicular to outer shaft 23 tube walls and with short slot 230; It is to be arranged on the pivot ear 232 of outer shaft 23 that knob 24 cooperates a screw 240, for the distance of opening of regulating outer shaft 23 short slots 230 openings; Internal axle sleeve 22 is the sleeve pipe of tube wall tool axial gap, is formed with the flange 220 that extends outwardly in internal axle sleeve 22 1 ends; Trace 25 is the elongate bars that two ends are provided with the dress hole; Elasticity original paper 26 can be a spring; Nut 27 can be made elasticity of compression original paper 26 increases damping usefulness.

Consult Fig. 2 and shown in Figure 3, it is that the bar linkage structure that tool is replied effect is installed on the known treadmills, mainly be to comprise a pedestal 10, two bar linkage structures 20, one interlinked mechanism 30 and two pedals 33,34, wherein the body frame bar 11 of pedestal 10 is to be provided with a connecting rod 12 to link with after-poppet 13 stage casings, two bar linkage structures 20 are to be set in parallel in pedestal 10 both sides, pedal 33,34 are hubbed at body frame bar 11 both sides, interlinked mechanism 30 is made of a belt pulley 31 and a stay cord 32, belt pulley 31 is to be mounted on set connecting rod 12 belows, body frame bar 11 stage casings, and stay cord 32 is to be set around belt pulley 31 and two ends are to be connected to two pedals 33, on 34.

Consult shown in Fig. 1,2,3, bipole body 21 is to be secured in parallel to be incorporated between pedestal 10 2 side body frame bars 11 and the after-poppet 13, the end that the body of rod 21 is not provided with screw thread 210 be secure bond in body frame bar 11, the end that the body of rod 21 is provided with screw thread 210 is that secure bond is in after-poppet 13; Internal axle sleeve 22 is end surfaces that the sheathed body of rod 21 is not provided with screw thread 210, outer shaft 23 is to be sheathed on internal axle sleeve 22 peripheries, the end that outer shaft 23 is provided with short slot 230 is to be resisted against on internal axle sleeve 22 flanges 220 and near body frame bar 11, elastic parts 26 is set in outside the body of rod 21, the one end is to be resisted against the end that outer shaft 23 is provided with pivot ear 234, nut 27 is that spiral shell is located at the body of rod 21 tool screw threads, 210 places and is resisted against the other end of elastic parts 26, one end of trace 25 is to be hubbed on the pivot ear 234 of outer shaft 23, and its other end is to be articulated in pedal 33,34 bottom surfaces.

But on the bar linkage structure of known tool answer effect, still have its disappearance, therefore on use is implemented, have following disclosed scarce fraud at least:

1. when coming energy storage as elastic parts such as spring, rubbers, must pretension, just can reach the elastic force pressure of design, this elastic force pressure size is along with stroke length decides, and so body of rod length certainly will be relied on the space, increases the cost that mould designs.

2. elastic parts such as the pressured spring that contracts, rubber reach the bar linkage structure of replying effect, must note this elastic parts occupation mode and service time, and elastic parts certainly will produce the phenomenon of elastic fatigue after using a period of time.

3. be installed in the elastic parts of bar linkage structure outside, because of contacting with air, the daylight in the external world for a long time, moisture and Exposure to Sunlight all have elastic parts corrodes and rotten harmful effect.

4. when the bar linkage structure of this tool being replied effect was installed in treadmills, its outer explicit elastic parts such as spring probably had and causes causing anxiety of tong, and real is inconvenience.

Edge is, spirit of studying intensively creation of this creator is set about research and development, and in line with professional experiences and gains in depth of comprehension for many years, concentrated test is weeded out the old and bring forth the new, and then proposed this creation, in the hope of improving known scarce fraud.

The utility model content

The structural improvement of the utility model treadmills, the start of oil hydraulic cylinder are the devices that fluid energy is converted to linear mechanical force, have the orthoscopic reciprocating motion that piston pushes away in cylinder or draws usually, make oil hydraulic cylinder can do very accurate activation and stop in stroke; Because after oil hydraulic cylinder is accepted to exert pressure, the state the when elastic force pressure that need be dependent on spring usually can make oil hydraulic cylinder reply pressurized not; Spring freely shakes excessive amplitude after often need having a frictional resistance can slow down resilience, and shock absorber can slow down freely shaking of spring usually, because the inside of shock absorber just is to use the fluid of the high coefficient of viscosity and undersized aperture to produce damping effect; This creation utilizes the shock absorber principle that a kind of structural improvement of treadmills is provided.

Because replying the bar linkage structure of effect, known tool adopts spring assembly mostly, must design the spring of various suitable wheelbases at different functions, must consider stroke length simultaneously, to the producer is a burden, and spring assembly promptly derives elastic fatigue, corrodes phenomenons such as rotten after use after a while, again, during the daily life utensil,, make us secret worry in fact if the operation careless mistake probably has the anxiety that crushes.

The main purpose of this creation is that a kind of structural improvement of treadmills is being provided, it is to utilize the splendid inert gas of stability to sneak into hydraulic oil and be filled in the oil hydraulic cylinder of treadmills, learn that by pascal's principle liquid must not compress, so, general oil hydraulic cylinder is to be unidirectional start, must install elastic parts and can make oil hydraulic cylinder reply the not state of pressurized; The utility model is to utilize the good inert gas of compression stability, and making expands and obtain one behind its pressurized replys elastic force pressure, uses substituting known elastic parts, reaches oil hydraulic cylinder and returns back to the not state of pressurized; When the utility model uses inert gas to substitute known elastic parts, can avoid increasing body of rod length into cooperating the elastic force pressure size to need to adjust, can save the mould design and the cost of manufacture of treadmills.

Secondary objective of the present utility model is that a kind of structural improvement of treadmills is being provided, known elastic parts is after using a period of time, this elastic parts has elastic fatigue or weathers rotten phenomenon, when utilizing the alternative known elastic parts of inert gas by compression, can remedy causing anxiety of the flexible fatigue of known elastic parts; Again, inert gas can adopt the nitrogen that content is maximum in the air (Nitrogen), need only utilize the nitrogen making machine pressurized atmosphere, can produce colourless, odorless, tasteless and stable splendid nitrogen, can simplify the mould development design, reduce the model that manufacturing cost reaches environmental protection simultaneously.

Secondary objective more of the present utility model is that a kind of structural improvement of treadmills is being provided, the interior inert gas of oil hydraulic cylinder that it is sneaked into hydraulic oil and is filled in treadmills, can be used as a damping return mechanism, the elastic force pressure size of this return mechanism is to depend on the pressure of blanketing gas and determine, and owing to gas is subjected to can faster produce an answer elastic force pressure after the compression swelling, can be different from the mechanicalness restoring force of known elastic parts, to make the user more light, comfortable in operation, also can allow the user experience unprecedented true telepresenc.

A kind of structural improvement that utilizes the treadmills of the known elastic parts of gas instead of the utility model design except denouncing that known assembly produces, and reduces cost, saves the space simultaneously, more reaches the effect of environmental protection.

Description of drawings

Fig. 1 is the bar linkage structure exploded view that known tool is replied effect;

Fig. 2 is the treadmills stereogram that known tool is replied effect;

Fig. 3 is the treadmills side view that known tool is replied effect;

Fig. 4 is the structure improved STRUCTURE DECOMPOSITION figure of the utility model treadmills;

Fig. 5 is the structure improved illustrative view () of the utility model treadmills;

Fig. 6 is the structure improved illustrative view (two) of the utility model treadmills;

Fig. 7 is the structure improved stereogram of the utility model treadmills;

Fig. 8 is the structure improved enforcement illustration () of the utility model treadmills;

Fig. 9 is the structure improved enforcement illustration (two) of the utility model treadmills.

[figure number explanation]

10 pedestals

11 body frame bars

12 connecting rods

13 after-poppets

20 bar linkage structures

21 bodies of rod

210 screw threads

22 internal axle sleeves

220 flanges

23 outer shafts

230 short slots

232,234 pivot ears

24 knobs

240 screws

25 traces

26 elastic parts

27 nuts

30 interlinked mechanisms

31 belt pulleys

32 stay cords

33,34 pedals

40 pedestals

41 main supports

42 connecting rods

43 after-poppets

50 oil hydraulic cylinders

51 outer earthen pipes

511 Bearings

512 draw-in grooves

Earthen pipe in 52

53 piston rods

531 roofbolts

532 screw threads

54 pistons

541 throttle sheets

542 O type rings

543 nuts

55 bases

551 oilholes

552 grooves

553 flanges

554 throttle sheets

The 555 movable tips

56 plinths

The 57 inflation tips

571 O type rings

58 connecting pieces

59 connecting pieces

60 serial verb constructions

61 belt pulleys

62 stay cords

63,64 pedals

The specific embodiment

For making your auditor can further understand feature of the present utility model and practical effect, attached now with preferred embodiment and graphic, describe in detail as the back:

Consult Fig. 4, be the structure improved STRUCTURE DECOMPOSITION figure of the utility model treadmills, this oil hydraulic cylinder 50 comprises that earthen pipe 52, a piston structure are formed in the outer earthen pipe 51; Should outer earthen pipe 51 be for diameter greater than the circular interior empty sleeve pipe of interior earthen pipe 52, be installed with a Bearing 511 in outer earthen pipe 51 tops, these Bearing 511 central authorities dig and are provided with a hole and run through, and dig on this Bearing 511 and be provided with a circular draw-in groove 512, are as the fixing usefulness of earthen pipe in making 52; Earthen pipe 51 bottoms are installed with a connecting piece 59 outside, the vacancy installs a plinth 56 in connecting piece 59 tops, and being used for the inflation tip 57 of filling inert gas in this plinth 56 central authorities installing one, it is in order to prevent that inert gas from leaking that the inflation tip 57 and 56 of plinths are established an O type ring 571; The interior earthen pipe 52 of oil hydraulic cylinder 50 is a slim earthen pipe, an end of earthen pipe 52 sets firmly a base 55 in being somebody's turn to do, dig in base 55 peripheries and to be provided with plural groups groove 552, make the groove 552 of these base 55 peripheries alternate with flange 553 height, digging in this base 55 and being provided with plural groups oilhole 551 is to use for the hydraulic oil circulation, in base 55 belows be provided with a throttle sheet 554 be in order to stop hydraulic oil be circulated in a large number outside between earthen pipe 51 and the interior earthen pipe 52, all be provided with a hole in base 55 and throttle sheet 554 central authorities, and penetrate the hole of base 55 and throttle sheet 554 central authorities by a movable tip 555, make its binding and can do trickle floating; Piston structure is to comprise a piston rod 53 and a piston 54, one end of this piston rod 53 is that diameter is less and be provided with the roofbolt 531 of screw thread, when piston rod 53 is passed by the hole of Bearing 511 central authorities on outer earthen pipe 51 tops, its helicoid roofbolt 531 can be locked in the connecting piece 58, the other end is then installed a piston 54 and is locked in screw thread 532, this piston 54 is to comprise that plural groups throttle sheet 541 and O type ring 542 structures of organizing form, the member of piston 54 is outer and cooperate a nut 543 to be locked on the piston rod 53, and piston 54 and member size thereof need to be located within the interior earthen pipe 52.

Consult Fig. 5, structure improved illustrative view () for the utility model treadmills, one piston structure is arranged in it, the piston 54 of front end is to cooperate a nut 543 to be locked on the piston rod 53, this piston rod 53 penetrates outside the earthen pipe 51 of going out via the hole of Bearing 511 central authorities, and it is solid with a connecting piece 58 spiral shells, this piston 54 can be received in the interior earthen pipe 52, and can carry out reciprocating type start, base 55 of earthen pipe 52 is just to support to be located on the plinth 56 in it, the other end of interior earthen pipe 52 is firmly to be sticked in Bearing 511 to dig in the circular draw-in groove of establishing 512, the diameter of this circular groove 512 is earthen pipe 52 footpaths in being equivalent to, outside interior earthen pipe 52 is arranged in the earthen pipe 51 time, the state of its immovable fitting, and the movable tip 555 in this base 55 is the aspects that present no fastening applying, so, the circulation of throttle sheet 554 and unobstructed hydraulic oil or inert gas at this moment; Consult Fig. 6 simultaneously, structure improved illustrative view (two) for the utility model treadmills, when piston 54 is promoted forward by the application of force, because hydraulic oil and inert gas in the propelling of piston 54 can drive and place in the earthen pipe 52, at this moment, can produce the air supporting principle when hydraulic oil and inert gas pressurized, the inert gas that is positioned at the top must push and place the hydraulic oil of below to advance, and when hydraulic oil in the earthen pipe 52 in the drive of piston 54 pressurizeds and inert gas, be the state that presents high pressure in the earthen pipe 52 in it, this high pressure conditions and make behind the movable tip 555 pressurizeds be positioned at base 55 also forward impelling, and make throttle sheet 554 be close to base 55, and because the incompressible law of liquid, so, this moment, hydraulic oil was that plural groups oilhole 551 on the base 55 flows out, and the groove 552 on the base 55 of flowing through is to outer earthen pipe 51; When throttle sheet 554 was close on the base 55, the inert gas in the interior earthen pipe 52 was to present the aspect that expands by compression, after inert gas expands by compression, can produce one and reply elastic force pressure; After piston 54 application of forces disappear, but can reply elastic force pressure pushing piston 54 by this, make the state before piston 54 returns back to start, be the disappearance of alternative known elastic parts, at this moment, because the state of interior earthen pipe 52 inner high voltages is removed, so, the throttle sheet 554 of before being close to base 55 also because of the movable tip 555 not pressurized unclasp, therefore, the hydraulic oil in the outer earthen pipe 51 can be again oilhole 551 on the base 55 flow back in the earthen pipe 52.

Consult Fig. 7, structure improved stereogram for the utility model treadmills, the Bearing 551 on these oil hydraulic cylinder 50 tops and the plinth 56 of bottom, when engaging with outer earthen pipe 51, for making Bearing 551 and plinth 56 be fixedly arranged in the outer earthen pipe 51 and guarantee that hydraulic oil does not ooze out, thus can cooperate O type ring also or the mode that adopts roller to weld make it fluid-tight engagement.

Consult Fig. 8 and Fig. 9 simultaneously, structure improved enforcement illustration (), (two) for the utility model treadmills, be to substitute the bar linkage structure of known employing spring, elastic fatigue, the erosion that can avoid spring assembly to produce really gone bad and caused causing anxiety of crushing, utilize the structural improvement of treadmills of the present utility model, be the design that comparatively meets hommization, behind outer explicit elastic parts, it is moulded more to seem elegant in appearance.

In sum, because particular design of the present utility model, therefore have above-mentioned all advantages and practical value, and in like product, do not see similar creation is arranged or to deliver yet, should meet the application important document of novel patent, so file an application in accordance with the law.

Claims (10)

1, a kind of structural improvement of treadmills is characterized in that, it includes:

One oil hydraulic cylinder structure contains an earthen pipe and a piston structure in the outer earthen pipe;

One outer earthen pipe, this outer earthen pipe content are established earthen pipe in;

Earthen pipe in one, earthen pipe content is established a piston structure in this;

One piston structure contains a piston rod and a piston;

One end of one piston rod is installed a piston, and the other end is installed a connecting piece;

One piston contains throttle sheet, O type ring and nut and forms;

One base, an end of earthen pipe in being installed in;

One Bearing, this Bearing are installed within the outer earthen pipe;

One plinth, this plinth are installed within the outer earthen pipe;

One connecting piece is installed in outer earthen pipe outer end and piston rod outer end;

In this hydraulic oil, sneak into inert gas, produce one by compression and reply elastic force pressure.

2, the structural improvement of treadmills as claimed in claim 1 is characterized in that: this inert gas is nitrogen or helium.

3, the structural improvement of treadmills as claimed in claim 1 is characterized in that: it is sneaked into inert gas and is filled in the interior hydraulic oil of oil hydraulic cylinder is machine oil, mineral oil based or artificial oil.

4, the structural improvement of treadmills as claimed in claim 1 is characterized in that: its base can dig establishes plural groups groove or plural groups oilhole.

5, the structural improvement of treadmills as claimed in claim 1 is characterized in that: its Bearing and plinth are fixedly arranged on and can cooperate O type ring in the oil hydraulic cylinder or adopt the roller welding to close.

6, the structural improvement of treadmills as claimed in claim 1 is characterized in that: its connecting piece is provided with hole.

7, the structural improvement of treadmills as claimed in claim 1 is characterized in that: its inside and outside earthen pipe can be cast carbon steel or aluminium alloy casting.

8, the structural improvement of treadmills as claimed in claim 1 is characterized in that: its piston rod can be done chromium plating and handle.

9, the structural improvement of treadmills as claimed in claim 1 is characterized in that: the material of its throttle sheet can be not dragon of iron.

10, the structural improvement of treadmills as claimed in claim 1 is characterized in that: the material of its O type ring can be rubber.

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