CN2895899Y

CN2895899Y - Gas-oil cylinder piston structure

Info

Publication number: CN2895899Y
Application number: CN 200620018066
Authority: CN
Inventors: 苏人杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-31
Filing date: 2006-03-31
Publication date: 2007-05-02
Anticipated expiration: 2016-03-31

Abstract

The utility model is a gas-oil cylinder piston structure which comprises a piston rod, a first locating plate, convex base and a second locating plate; joint part with small rod diameter is provided at the front end of the piston rod, and the first locating plate, the convex base and the second locating plate are assembled fixedly in order at the joint part; the main design is that some through holes are provided at the upper and lower end surface of the convex base and the through hole forms a coherent channel to let the oil or the air in from one end of the channel and out from the other end, also the entrance and the exit are on the upper and lower end surface of the convex base; a containing area is formed between the convex base and the first locating plate when the convex base and the first locating plate are fixed at the front end of the piston rod., and the containing area provides the oil sealing ring which can move in the area; according to the above, the piston structure which is composed by the piston rod, the first locating plate, convex base and the second locating plate can be provided in the oil pressure pipe which is filled with air and oil in advance; also the channel which is formed by some through holes can eliminate the factors of sonic booms and noise to decrease and prevent the sonic booms and noise.

Description

The piston structure of gas and oil cylinder pressure

Technical field

The utility model is a kind of piston structure of gas and oil cylinder pressure, and this gas and oil cylinder pressure has two-way different resistance, has effect laborsaving and buffering concurrently and can provide; Especially, the piston structure of the utility model indication can effectively reduce or prevent the effect of sonic boom noise when motion.

Background technique

Gas, oil hydraulic cylinder are that each industry is used assembly quite widely, and machinery, building, steam turbine car, bicycle, sports equipment or other articles for daily use etc. all have and see its extensive use such as.This gas, oil hydraulic cylinder not only have the power conveying function, and when cylinder interior is preset with gas pressure, more can reach the using effect of pressure accumulation; Normal generally see, have article such as damper screen door or cupboard door sheet about this kind gas, oil hydraulic cylinder structural design, make to be employed thing and can to have two-way different resistance, reach and be employed thing and have effect laborsaving and buffering concurrently just like the automobile rear cargo door.Please consult simultaneously shown in Fig. 1,2, the basic comprising of aforementioned gas, oil hydraulic cylinder mainly comprises members such as oil pressure pipe 10 and piston set 20; Wherein, this piston set 20 is assembled locating washer 22, piston ring 23 and piston seat 24 in regular turn in a piston rod 21 front ends, and in the riveted mode locating washer 22, piston ring 23 and piston seat 24 is fixed in piston rod 21 front ends; Therefore, when piston rod 21 is movable in the oil pressure pipe 10 that is marked with gas and fluid in advance, can produce different resistances owing to moving or move down on the piston set 20, and then reach effect laborsaving and buffering, for example (see also Fig. 2), when moving on the piston set 20, gas in the oil pressure pipe 10 or fluid can be circulated by the spacing of 24 of oil pressure pipe 10 and piston seats, through the breach of locating washer 22 and smoothly channelling is to piston set 20 belows, and is so resistance is less when moving on this piston set 20, then comparatively laborsaving in the use; (otherwise seeing also Fig. 3), when piston set 20 moved down, gas or fluid in the oil pressure pipe 10 only can be escaped to piston set 20 tops by the minor groove that the wall of piston seat 24 is offered, so resistance is bigger when this piston set 20 moves down, in the use then than the tool cushioning effect.But the gas that aforementioned industry is more often used, oil hydraulic cylinder piston structure though the effect of piston set 20 reciprocal different resistances is provided, are so found after the practical operation test, and the piston structure of commonly using has following disappearance to remain to be improved:

When piston set 20 moves, gas or fluid in the oil pressure pipe 10 can be circulated by the spacing between oil pressure pipe 10 and the piston seat 24, through the breach of locating washer 22 and smoothly channelling is to piston set 20 belows, if piston set 20 is reverse when mobile, because gas or fluid in the oil pressure pipe 10 only can be escaped to piston set 20 tops by the minor groove that the wall of piston seat 24 is offered, gas or fluid is big pressure because of compression produces in oil pressure pipe 10, once gas or fluid by the minor groove jet flow to than the oil pressure pipe 10 of large space the time, because the abrupt release of compressing force, and then cause sending noisy sonic boom noise in the oil pressure pipe 10, make product on using, cause puzzlement and flaw.

The model utility content

The purpose of this utility model promptly is to improve the disappearance of aforementioned known piston structure institute tool, and a kind of piston structure that can effectively reduce or prevent the gas and oil cylinder pressure of sonic boom function of noise is provided then.

Piston structure of the present utility model mainly comprises members such as a piston rod, first location piece, convex seat and second location piece; Wherein:

This piston rod front end is established less connecting part, bar footpath, first location piece, convex seat and second location piece then can be assembled in the connecting part in regular turn, and this connecting part front end also can riveted mode (or other means of fixation) be fixed in the piston rod front end with first location piece, convex seat and second location piece; Its main design is: this first location piece periphery is provided with some breach, the upper and lower end face of convex seat is provided with some through holes, these some through holes can form a channel that links up, fluid or air are entered by formed channel one end of some through holes, and send by the end in addition of channel, and the inlet of channel and outlet lay respectively at the upper-end surface and the lower end surface of convex seat, in addition, when convex seat and first location piece are fixed in the piston rod front end, then form the holding area between the two, but this holding area fuel feeding seal ring is ccontaining, and displacement between this district.By this, the piston structure of being made up of piston rod, first location piece, convex seat and second location piece can be inserted activity in the oil pressure pipe that is marked with gas and fluid in advance.

By above-mentioned structure, in piston structure is inserted the oil pressure pipe that is marked with gas and fluid in advance when movable,, and then reach effect laborsaving and buffering because that piston moves up and down direction is different and can produce different resistances.And, because piston rod moves down the gas or the fluid that make in the oil pressure pipe and only can be escaped by the formed coherent channel of some through holes of convex seat, though gas or fluid can cause the sonic boom noise because of the release of compressing force, yet because the formed channel of some through holes of convex seat has hindered the path of air release of pressure, that is to say the time that has prolonged the air release of pressure, therefore, this some through holes formed channels has promptly diminished and has produced the factor of sonic boom noise, and then reaches effective reduction or prevent the generation of sonic boom noise.

Description of drawings

Fig. 1 is the piston structure D structure figure of known gas and oil cylinder pressure.

Fig. 2 analyses and observe for the piston structure of known gas and oil cylinder pressure and moves schematic representation ().

Fig. 3 analyses and observe for the piston structure of known gas and oil cylinder pressure and moves schematic representation (two).

Fig. 4 is the utility model D structure figure.

Fig. 5 is the D structure figure of the utility model convex seat.

Fig. 6 is another angle D structure figure of the utility model convex seat.

Fig. 7 analyses and observe for the utility model piston structure and moves schematic representation ().

Fig. 8 analyses and observe for the utility model piston structure and moves schematic representation (two).

Fig. 9 flees the moving-wire schematic representation for the utility model convex seat planimetric map and air, fluid.

The primary clustering symbol description

One, known part

10 oil pressure pipes, 20 piston set

21 piston rods, 22 locating washers

23 piston rings, 24 piston seats

Two, the utility model part

30 piston rods, 31 connecting parts

40 first location pieces, 41 breach

50 convex seats, 51 through holes

52 holding areas, 53 oil seal rings

60 second location pieces

70 oil pressure pipes

Embodiment

For further understanding the utility model is that Chuang Dar Industrial Co., Ltd makes technological means and the structure characteristics thereof that purpose is used, and sincerely enumerate following preferable feasible embodiment, and conjunction with figs. is described in detail as follows again.

See also shown in Figure 4ly, piston structure of the present utility model mainly comprises members such as a piston rod 30, first location piece 40, convex seat 50 and second location piece 60; Wherein:

These piston rod 30 front ends are established less connecting part 31, bar footpath, first location piece 40, convex seat 50 and second location piece 60 then can be assembled in connecting part 31 in regular turn, and these connecting part 31 front ends also can riveted mode (or other means of fixation) be fixed in piston rod 30 front ends with first location piece 40, convex seat 50 and second location piece 60; Its main design is (please to consult Fig. 5 simultaneously, shown in 6): these first location piece, 40 peripheries are provided with some breach 41, on the convex seat 50, the lower end surface is provided with some through holes 51, these some through holes 51 can form a channel that links up, fluid or air are entered by some through hole 51 formed channel one ends, and send by the end in addition of channel, and the inlet of channel and outlet lay respectively at the upper-end surface and the lower end surface of convex seat 50, in addition, when convex seat 50 and first location piece 40 are fixed in piston rod 30 front ends, then form holding area 52 between the two, it is ccontaining that but fuel feeding seal ring 53 is succeeded in this holding area 52, and displacement between this district.By this, the piston structure of being made up of piston rod 30, first location piece 40, convex seat 50 and second location piece 60 can be inserted activity in the oil pressure pipe 70 that is marked with gas and fluid in advance.

By above-mentioned structure, in piston structure is inserted the oil pressure pipe 70 that is marked with gas and fluid in advance when movable,, and then reach effect laborsaving and buffering because that piston moves up and down direction is different and can produce different resistances.For example (see also Fig. 7), when moving on the piston rod 30, gas in the oil pressure pipe 70 or fluid can be directly flow to oil pressure pipe 70 belows through oil seal ring 53 inboards by the breach 41 of first location piece 40, and it is less to succeed when moving on this piston rod 30 resistance, then comparatively laborsaving in the use; (otherwise seeing also Fig. 8), when piston rod 30 moves down, because the slit between convex seat 50 and the oil pressure pipe 70 is sealed by oil seal ring 53, therefore the gas of oil pressure pipe 70 belows or fluid only can be escaped by some through holes 51 formed coherent channels of convex seat 50, fluid or air are fled to oil pressure pipe 70 tops via some through hole 51 formed tortuous channels, succeed piston rod 30 when moving down resistance bigger, in the use then than the tool cushioning effect.

So piston structure of the present utility model is except the effect that gas, the reciprocal different resistances of oil hydraulic cylinder can be provided, it has more following advantage:

Because piston rod 30 moves down the gas or the fluid that make in the oil pressure pipe 70 and only can be escaped by some through holes 51 formed coherent channels of convex seat 50, though gas or fluid can cause the sonic boom noise because of the release of compressing force, yet because some through holes 51 formed channels of convex seat 50 have hindered the path of air release of pressure, that is to say the time that has prolonged the air release of pressure, therefore, this some through hole 51 formed channels have promptly diminished and have produced the factor of sonic boom noise, and then reach effective reduction or prevent the generation (seeing also Fig. 7) of sonic boom noise.

Address the preferred embodiment shown in the drawings as can be known from above institute, the utility model is by the design of members such as piston rod 30, first location piece 40, convex seat 50 and second location piece 60, make it have two-way different resistance, provide have concurrently laborsaving and the buffering effect and can be widely used in industry and association area thereof; Especially, this piston structure can effectively reduce or prevent the generation of sonic boom noise when motion; So the utility model really has obvious improvement and practicability compared to known person, and the technological means of its utilization and structure thereof are are really researched and developed by this creator and are formed, heir's the utility model has met the important document of patent really, files an application in the whence in accordance with the law, and prays and grant patent right for praying.But the above structure that is disclosed of the application is to be the utility model preferred embodiment, and the equivalence of doing according to structure of the present utility model changes such as, must contain the claim that is placed on the application.

Claims

1, a kind of piston structure of gas and oil cylinder pressure, it mainly comprises members such as piston rod, first location piece, convex seat and second location piece; This piston rod front end is established less connecting part, bar footpath, and first location piece, convex seat and second location piece then can be assembled in regular turn and be fixed in the connecting part; It is characterized in that: this first location piece periphery is provided with some breach; The upper and lower end face of this convex seat is provided with some through holes, these some through holes can form a channel that links up, fluid or air are entered by formed channel one end of some through holes, and send by the end in addition of channel, and the inlet of channel and outlet lay respectively at the upper-end surface and the lower end surface of convex seat, when convex seat and first location piece are fixed in the piston rod front end, then form the holding area between the two, but this holding area fuel feeding seal ring is ccontaining, oil seal ring can in this district between displacement; By this, the piston structure of being made up of piston rod, first location piece, convex seat and second location piece can be inserted activity in the oil pressure pipe that is marked with gas and fluid in advance.