CN2787921Y

CN2787921Y - Structure of automobile shock absorber

Info

Publication number: CN2787921Y
Application number: CN 200420065210
Authority: CN
Inventors: 江明煌
Original assignee: 史秋伟
Priority date: 2004-05-25
Filing date: 2004-05-25
Publication date: 2006-06-14
Anticipated expiration: 2014-05-25

Abstract

The utility model relates to a structure of an automobile shock absorber. The utility model has the essential structure that the interior of a cylinder body of which the interior is filled with oil bodies is provided with a piston rod provided with a restoring spring. The utility model is characterized in that the piston rod is provided with a piston plate and two movable seats; the periphery of the piston plate and the cylinder wall of the cylinder body are in the closed gliding state, and the piston plate is provided with a plurality of through holes; the movable seats are arranged on the upper and the lower both sides of the piston plate, and proper space appears between the periphery and the cylinder wall of the cylinder body for the oil bodies to circulate. In addition, the through holes are provided with a plug body which can slide in the through holes; the upper and the lower ends of the plug body is designed to form a conical shape, and both ends are respectively provided with a spring; the other ends of the springs are fixed on the movable seats. Accordingly, the utility model can have effects of the quick buffering and the shock absorption of multiple sections through the displacement effect of the plug body in the through holes in order to generate an effective quick shock absorption effect according to different road conditions.

Description

The structure of automobile damper

Technical field

The utility model relates to a kind of structure of automobile damper, refers to a kind of quick shock-absorbing effect of multi-section type that has especially, and can be with the different structures of the automobile damper of shock-proof effect effectively fast that produce of road conditions.

Background technique

The structure of general existing automobile damper, as shown in Figure 1, its structure is mainly and is provided with a piston rod 20 in the cylindrical shell 10, and is arranged with a returning spring 30 on piston rod 20, wherein:

This cylindrical shell 10 is filled out in it and is provided with an amount of oil body, and a side opening is established its envelope with a cover (11);

These piston rod 20 1 ends pass cover 11 and extend in the cylindrical shell 10, the other end then body is exposed to outside the cylindrical shell 10, its end that extends into cylindrical shell 10 is provided with a piston seat 21, its end that stretches outside cylindrical shell 10 then is provided with a spring seat 22, this piston seat 21 is divided into upper chamber 70 and lower chamber 71 with cylindrical shell 10 inner regions, and the barrel of the periphery of this piston seat 21 and cylindrical shell 10 is driving fit and the state of slip, on it and be provided with some through holes 23 that connect upper chamber 70 and lower chamber 71, and on the through hole 23 of piston seat 21, be provided with some sheets alive 24 again and can coagulate coefficient for the group of control through hole;

This returning spring 30 is sheathed on cylindrical shell 10 piston rod 20 outward, and the end, one end top, end was then pressed the end face of the end in spring seat 22 in addition in cover 11 bottoms.

See also shown in Figure 2, when wheel of the bus runs into hole hole or rough road surface and when piston rod 20 is stressed, then the oil bodies in the larger area upper chamber 70 just can be subjected to the compressing of piston seat 21 and upper chamber's 70 inner tube walls and by flowing in the lower chamber 71 with fixing flow than the through hole 23 of small size and therefore piston rod being risen, also make spring seat 22 compression reaction springs 30 simultaneously; See also shown in Figure 3, when 20 in piston rod is stressed, then this piston rod 20 just can be subjected to returning spring 30 elastic-restoring force effect and make it to bottom offset, and make oil bodies in the larger area lower chamber 71 be subjected to the compressing of piston seat 21 and lower chamber 71 inner tube walls and flow in the upper chamber 70 by through hole 23 than small size; Piston rod 20 is risen or slow down with a fixing speed during decline displacement and reached the effect of buffering and shock preventing.

Because existing structure with automobile damper, because of it reaches the purpose of shock-absorbing for utilizing fixing flow design, so its piston rod 20 can't stretch moment fast, no matter do the time spent so work as its pressure that is subjected to any size, all can directly make it directly produce the effect that displacement reaches shock-absorbing, yet because it can't allow compressed oil body circulate fast, thereby just can produce very big momentum, when in case automobile navigates on the not good a little road surface of road conditions, just can produce the situation of jolting and rocking, even all can make automobile produce violent rocking through a very little pothole or a stone, and easily cause driver or the uncomfortable and carsick situation of passenger.

Edge is, this creator is not promptly at attaining the perfect many disappearances that cause on the above-mentioned structural design of commonly using automobile damper, and deeply design, and the road of active research improvement, improves having a fling at and development and Design goes out the utility model through long-term effort.

Summary of the invention

Main purpose of the present utility model is to provide a kind of and has the effect of multi-section type shock-absorbing and can be with the different structures that produce the automobile damper of effective shock-proof effect of road conditions, its structure is mainly and is provided with a piston rod in the cylindrical shell that has oil body in, and be provided with a returning spring in piston rod, it is characterized in that: this piston rod is provided with a piston plate and two active base, the periphery of this piston plate and the barrel of cylindrical shell are the state of driving fit slip, and which is provided with some through holes, and but this active base is located at and is had the fuel feeding body circulation of suitable space between the barrel of the both sides up and down of piston plate and periphery and cylindrical shell, being provided with in addition one in this through hole again can be in the cock body of slippage wherein, the upper and lower end of this cock body is set as taper, and two ends respectively are provided with a spring respectively, the other end of this spring then is fixed on the active base, so just can by cock body in through hole the displacement effect and make its buffering and shock preventing effect with multistage, can produce effective shock-proof effect with road conditions are different for it.

In sum, owing to the utlity model has careful design, thus have above-mentioned advantage and use value, and in like product, there is no similar products like or deliver, so met the application important document of novel patent, be hence to file an application in accordance with the law.

Description of drawings

Fig. 1 is the combination section of existing automobile damper

Fig. 2 is the action schematic representation of existing automobile damper when being stressed.

Fig. 3 is the existing automobile damper action schematic representation when replying.

Fig. 4 is a combination section of the present utility model.

Fig. 5 is the action schematic representation when being subjected to less pressure of the present utility model.

Fig. 6 is the action schematic representation when being subjected to big pressure of the present utility model.

Fig. 7 is the action schematic representation that is subjected to return back to than big pressure a half of the present utility model.

Fig. 8 is the action schematic representation that is subjected to big pressure answer above a half of the present utility model.

The figure number explanation

10 cylindrical shells, 11 covers

20 bar pistons, 21 piston seats

22 spring seats, 23 through holes

24 sheet 30 returning springs alive

70 upper chamber, 71 lower chambers

40 cylindrical shells, 41 covers

50 piston rods, 51 piston plates

52 active base, 53 through holes

54 cock bodys, 55 springs

56 spring seats, 60 returning springs

80 first rooms, 81 second rooms

82 the 3rd rooms 83 the 4th hold four

Embodiment

Seeing also shown in Figure 4ly, is the structure of an automobile damper, and its structure is mainly and is provided with a piston rod 50 in the cylindrical shell 40, and is arranged with a returning spring 60 on piston rod 50, wherein:

This cylindrical shell 40 is filled out in it and is provided with an amount of oil body, and a side opening is established its envelope with a cover 41;

These piston rod 50 1 ends pass cover 41 and extend in the cylindrical shell 40, the other end then stretches outside cylindrical shell 40, its end that extends into cylindrical shell 40 is provided with a piston plate 51 and two active base 52 so that the spaces in the cylindrical shell 40 are separated into first room 80 respectively, second room 81, the 3rd room 82 and the 4th room 83, and the wherein periphery of piston plate 51 and cylindrical shell 40) inner tube wall be driving fit and the state of slip, and piston plate 51 is provided with the through hole 53 of some perforation second rooms 81 and the 3rd room 82, but then being located between the inner tube wall of the both sides up and down of piston plate 51 and its periphery and cylindrical shell 40, this active base 52 has a suitable space fuel feeding body circulation, being provided with one again in the through hole 53 in addition can be in the cock body 54 of wherein slippage, and the upper and lower end of this cock body 54 is set as taper, respectively be provided with a spring 55 again respectively in the two ends of this cock body 54 in addition, the other end of this spring 55 then is fixed in, on the active base 52 of downside, in addition this piston rod 50 stretches a end in cylindrical shell 40 outside and then is provided with a spring seat 56 that can supply returning spring 60 contacts in addition;

This returning spring 60 is sheathed on the outer piston rod 50 of cylindrical shell 40, and the one end is resisted against cover 41 bottoms, and end then is pressed against the end face of spring seat 56 in addition.

See also shown in Figure 5, when automobile runs into craterlet or small stone in advancing when piston rod 50 is subjected to a less pressure, then the oil bodies in first room 80 just can be subjected to the extruding of top active base 52 and cylindrical shell 40 inwalls and be flowed in second room 81 by the barrel gap of active base 52 peripheries and cylindrical shell 40, and the purpose of first section buffering when reaching pressurized, and stream fill in the oil body of second room 81 also can and then cock body 54 be passed downwards and make this cock body 54 stretch side provided thereon spring 55 and compress the spring 55 of being located at its below and make it reach the purpose of second section buffering, and this moment, the displacement amount that makes progress of piston rod 50 just can be absorbed by the displacement amount of each cock body 54 and to make that its displacement amount significantly foreshortens to very little, and as suffered underpressure so that cock body 54 when being displaced to the situation that makes through hole 53 be perforation, then be that automobile is when leaving craterlet or small stone after its pressure is removed, then this cock body 54 just can be by the effect of the elastic-restoring force of its upper and lower spring 55 and returning position, so just can make the automobile that runs into craterlet and small stone in advancing, only produce very small rocking, even the driver or the passenger that start from advancing can't discover, and the extraordinary shock-proof effect that is effective.

See also shown in Figure 6, when automobile runs into hollow place hole or boulder in advancing when piston rod 50 is subjected to big pressure, then after above-mentioned first section and second section buffering, because of can continuing to be pushed downwards to move, this cock body 54 make itself and 53 of through holes produce the gap, and but the fuel feeding body makes piston rod 50 upwards increase displacement amount gradually fast by a large amount of flow in the 3rd rooms 82 of second room 81, and and then returning spring 60 is compressed, to reach the purpose of the 3rd section buffering and shock preventing, and when up to making this cock body 54 be pushed the below that moves to piston plate 51 fully through hole 53 being connected fully as pressure is excessive, then simultaneously oil body just again the 3rd room 82 flow into fast in the 4th rooms 83 and make piston rod 50 with maximum and uniform displacement amount to top offset and compression reaction spring 60, to reach the purpose of the 4th section buffering and shock preventing, see also shown in Figure 7, when pressure is removed, then cock body 54 just can be subjected on it, the effect of below pulling force of spring 55 and elastic force and be pulled original position earlier, and simultaneously this piston rod 50 also can continue to be subjected to returning spring 60 the elastic force effect and to bottom offset, as shown in Figure 8, so that the oil body in the cylindrical shell 40 is being complied with anti-order by the 4th room 83, the 3rd room 82, second room 81 and flow into first room 80, and simultaneously because of cock body 54 is upwards passed, and make it also have answer effect as four sections above-mentioned bufferings.

Owing to the utility model is less pressure almost completely to be absorbed by the buffering and shock preventing effect of first section and second section, and it is one very small that its automobile only can be produced when running into craterlet and small stone, even rocking of driver in advancing or passenger almost can't being discovered, and the extraordinary shock-proof effect that is effective, even and when running into a bigger pressure, also can its pressure be absorbed minimum degree by four sections buffer function, especially can utilize cock body 54 two ends to be set as the design of taper, and the buffer function that makes the 3rd section can smooth-goingly reach by the carrying out of measuring, so that therefore it can do a buffering and shock preventing action rapidly to any pressure that is transmitted by wheel, and when pressure disappears, also can make wheel reply return fast, thereby can obtain a best and perfect shock-proof effect so that car recovers horizontal state fast.

Claims

1. the structure of an automobile damper, its structure is mainly and is provided with a piston rod in the cylindrical shell that has oil body in, and is provided with a returning spring in piston rod, it is characterized in that:

This piston rod is provided with a piston plate and two active base, the periphery of this piston plate and the barrel of cylindrical shell are the state of driving fit slip, and which is provided with some through holes, and but this active base is located at and is had the fuel feeding body circulation of suitable space between the barrel of the both sides up and down of piston plate and periphery and cylindrical shell, being provided with in addition one in this through hole again can be in the cock body of slippage wherein, the upper and lower end of this cock body is set as taper, and two ends respectively are provided with a spring respectively, and the other end of this spring then is fixed on the active base.

2, the structure of automobile damper according to claim 1 is characterized in that: an end of cylindrical shell is provided with a cover and can passes and its envelope is located in the cylindrical shell for an end of piston rod.

3, the structure of automobile damper according to claim 1, it is characterized in that: piston rod stretch a end outside cylindrical shell be provided with one can be for the spring seat of returning spring contact, this returning spring is sheathed on the outer piston rod of cylindrical shell, and the one end is resisted against the cover bottom, and end then is pressed against the end face of spring seat in addition.