CN2315351Y - Air-cushion type damper - Google Patents

Abstract

The utility model relates to an air-cushion type damper. An accommodating room is formed in an air accommodating housing with a sealed opening fixedly provided with an elastic bearing whose top surface is provided with a supporting platform body made of rigid material; the supporting platform body is a hollow cylinder in a certain height, the inner side of the supporting platform body forms a room with an opening facing downward, and the top of the room forms a top panel; the bottom surface of the top panel is provided with a convex column which is sheathed with a concave hole arranged at the top surface of the elastic bearing, the bottom edge of the supporting platform body is arranged above an air opening, and the supporting platform body can shield most of the components of the damper inside to prevent the components from damage; the height of the supporting platform body can cause the supporting platform to indicate the pressure.

Description

The air cushion type shock absorber

The utility model relates to a kind of shock absorber, particularly relates to the good air cushion type shock absorber of a kind of shockproof effect.

As shown in Figure 1, it is the structure of the air cushion type shock absorber of No. the 84200278th, this case claimant Taiwan utility application of being applied for, hold the gas housing 1 inner opening room 17 up that forms at one, this appearance gas housing 1 side is provided with a valve cock 18, form a flange that extends internally 19 at these room 17 openings, be nested in the opening of this room 17 with the elastic bearing 2 that is made by rubber material, and be subjected to the block of this flange 19 and obtain the location, these elastic bearing 2 surfaces are formed with a plurality of bulge loop 27 and a plurality of grooves 28 that concentric circle is arranged shape that are, in these elastic bearing 2 central authorities, be installed with a fixed base 3 with embedding manner in advance, be provided with opening register hole 37 up in this fixed base 3, and hold the socket post 47 that stage body 4 bottom surfaces are convexly equipped with one and be set in this register hole 37, this holds the runners 57 of the bearable board 5 of stage body 4 end faces.

During use,, and make pressurized gas be filled in this room 17 inside gradually with these valve cock 18 outside termination pressurized gas.Because of being subjected to the effect of gas pressure, these elastic bearing 2 outer peripherys can more urgently be pressed on the bottom surface of this flange 19, make these elastic bearing 2 outer periphery be positioned at the inside of this room 17, because of being subjected to the pressurized gas effect, also can't from this room 17, break away from, after this elastic bearing 2 is subjected to pressurized gas and supports, be and upwards heave shape, make this hold the runners 57 that stage body 4 is bearing this board 5, and when bearing the vibrations that 5 runnings of this board are produced, utilize these elastic bearing 2 surfaces to be wavy bulge loop 27 and groove 28, can increase the distance of shock attenuation.But these elastic bearing 2 emergences can be subjected to oil pollution or are subjected to external force collision and damage outside this room 17.

The purpose of this utility model is to provide a kind of air cushion type shock absorber, can protect the member of shock absorber not damaged by foreign object or external force, and utilizes and to hold stage body and cooperate with valve cock and reach the pressure purpose of indicating.

The technical solution of the utility model is, described air cushion type shock absorber comprises a kind of air cushion type shock absorber, comprising one holds gas housing, elastic bearing and one and holds stage body, this holds the gas enclosure interior and forms opening room up, and the periphery place is provided with one and can charges the valve cock that pressed gas enters this room inside, this room opening sealing cover is established an elastic bearing made from rubber material, this elastic bearing surface is wavy, this of the board that holds in the installing of this elastic bearing end face holds stage body, it is characterized in that:

These elastic bearing end face central authorities form a shrinkage pool that is not through to this room inside, and the elasticity of this shrinkage pool below is held body inside and buried a dunnage made from rigid material underground;

This holds stage body and is the hollow cylinder shape, downward opening space of inner formation, form a top board in this top of space, this top board bottom surface is provided with the projection in the shrinkage pool that a cover is set in this elastic bearing, and this root edge that holds stage body is positioned at the top of this valve cock.

Air cushion type shock absorber of the present utility model, hold the gas enclosure interior at one and be formed with opening room up, this appearance gas housing is provided with the valve cock that the gas that can charge predetermined pressure enters this room inside in its suitable position of periphery, the sealing cover of this room opening is provided with an elastic bearing made from rubber material, this elastic bearing surface is wavy, and end face central authorities form a shrinkage pool that has predetermined depth and be not through to this room inside, the elasticity of this shrinkage pool below is held body inside and is embedded with a dunnage made from rigid material, this elastic bearing end face is covered with one again and holds stage body, this holds stage body and is the hollow cylindrical body shape with predetermined altitude, and downward opening space of inner formation, this top of space forms a top board, this top board bottom surface is provided with a projection, this projection can sheathedly be positioned in the shrinkage pool of this elastic bearing, and this holds the stage body root edge and is positioned at pre-position, this valve cock top, by this, utilizing this to hold stage body can cover the shock absorber member in inside, to prevent oil pollution or to be subjected to external force collision and to damage, and utilize to hold cooperating of stage body root edge and valve cock, can reach the purpose of the interior gas pressure of this room of indication.

Below by most preferred embodiment and accompanying drawing air cushion type shock absorber of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is the combination section of the air cushion type shock absorber of No. the 84200278th, Taiwan utility model application.

Fig. 2 is the combination section of the utility model preferred embodiment.

Fig. 3 is the operation chart of the utility model preferred embodiment.

As shown in Figure 2, air cushion type shock absorber of the present utility model, comprise one hold that gas housing 10, one be located at that the elastic bearing 20 at these appearance gas housing 10 tops and one is located at these elastic bearing 20 tops hold stage body 30.

This appearance gas housing 10 is made hollow cylindrical with metallic material, inside is provided with opening room 11 up, this room 11 is provided with a valve cock 12 that can connect to the outside at its predetermined depth place, this valve cock 12 can will have the gas filling of suitable pressure in these room 11 inside.

This elastic bearing 20, its shape, structure was with shock absorber was roughly the same in the past, make to have suitable flexible rubber material, and shape is to cooperate this room 11, utilize binder to make these elastic bearing 20 side faces be cemented in this room 11 openings, be provided with a depression ring portion 21 that is sagged shape at these elastic bearing 20 end faces near peripheral region, these depression ring portion 21 inner side places are provided with most and are the bulge loop 22 that concentric is arranged, form a groove 23 between per two bulge loops 22, and these elastic bearing 20 bottom surfaces are symmetrical in this bulge loop 22 and groove 23 places relatively are formed with a groove 231 and a bulge loop 221, make the cross section of this elastic bearing 20 be wavy, and the thickness of these elastic bearing 20 peripheries and central proper range is bigger, and towards being provided with bulge loop 22,221 and groove 23,231 position dwindles thickness gradually, make and be provided with bulge loop 22,221 and groove 23,231 position thickness minimum, in addition, these elastic bearing 20 end faces central authorities form a shrinkage pool 24 that has predetermined depth and be not through to these room 11 inside, and elastic bearing 20 inside of these shrinkage pool 24 belows are buried a dunnage 25 made from metal plate-like in advance underground.

This holds stage body 30 and makes hollow cylindrical with metallic material, inside is provided with a downward opening space 31, a top board 32 is formed on these 31 tops, space, these top board 32 bottom surfaces are provided with a projection 33, this projection 33 can sheathedly be positioned in the shrinkage pool 24 of this elastic bearing 20, and these projection 33 inside are provided with a screw 34, and this screw 34 is unidirectional open shape, its opening is formed at this top board 32 end faces, and this root edge 35 that holds stage body 30 is the pre-positions that are positioned at these valve cock 12 tops.

As shown in Figure 2, when not using, in this room 11 not filling pressurized gas and this hold stage body 30 end faces and do not support board 40, this holds stage body 30 root edges 35 and supports and end at these valve cock 12 tops; As shown in Figure 3, during use, can be with these valve cock 12 outside termination pressurized gas, and make pressurized gas be filled in this room 11 inside gradually, utilize the consolidation of binder, make these elastic bearing 20 peripheries firmly be arranged on the opening end of this room 11, so, also can from this room 11, not break away from even be subjected to the effect of pressurized gas.

After this elastic bearing 20 is subjected to pressurized gas and supports, can be upwards and heave, make this hold stage body 30 and bear the runners 41 of board 40 at this, and when bearing the vibrations that 40 runnings of this board are produced, can reach the air cushion shock-proof effect, simultaneously, this holds stage body 30 and is subjected to effect meeting that elastic bearing 20 heaves by jack-up upwards, make this root edge 35 also upwards shift and form predetermined height distance with this valve cock 12, when the shaking force of this board 40 is passed to this when holding stage body 30 and elastic bearing 20, utilize to be provided with on this elastic bearing 20 and be wavy flange 22,221 and groove 23,231, with the decay of increase vibrations, and reach preferable shockproof effect.

As Fig. 2, shown in 3, this periphery that holds stage body 30 should hold gas housing 10, elastic bearing 20 is located at inside fully, and this projection 33 of bottom surface directly is inserted in to the shrinkage pool 24 of this elastic bearing 20, when the greasy dirt of board 40 drips downwards accidentally, can this elastic bearing 20 made from rubber material not exerted an influence yet, and can not infiltrate this appearance gas housing 10 inside, in addition, utilize this to hold formed distance between stage body 30 root edges 35 and this valve cock 12 tops, whether the air pressure that can easily observe out this room 11 that holds gas housing 10 is sufficient, if finding this holds when formed distance diminishes between stage body 30 root edges 35 and valve cock 12 tops, supplementary pressure again, so, utilize this to hold formed variable in distance between stage body 30 root edges 35 and valve cock 12 tops, just can reach the pressure indication and observe easy purpose.

In sum; air cushion type shock absorber member of the present utility model is simple; more or less freely when manufacturing and assembly; utilize the distance of the wavy prolongation shock attenuation on elastic bearing 20 surfaces; to reach preferable shockproof effect; and utilize this setting that holds stage body 30 again, not only can reach the purpose of protection shock absorber internals, and more can observe the effect of gas pressure change easily.

Claims (1)

1. air cushion type shock absorber, comprising one holds gas housing, elastic bearing and one and holds stage body, this holds the gas enclosure interior and forms opening room up, and the periphery place is provided with one and can charges the valve cock that pressed gas enters this room inside, this room opening sealing cover is established an elastic bearing made from rubber material, this elastic bearing surface is wavy, and this of the board that holds in the installing of this elastic bearing end face holds stage body, it is characterized in that:

These elastic bearing end face central authorities form a shrinkage pool that is not through to this room inside, and the elasticity of this shrinkage pool below is held body inside and buried a dunnage made from rigid material underground;

This holds stage body and is the hollow cylinder shape, downward opening space of inner formation, form a top board in this top of space, this top board bottom surface is provided with the projection in the shrinkage pool that a cover is set in this elastic bearing, and this root edge that holds stage body is positioned at the top of this valve cock.

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