CN201487114U

CN201487114U - Damper

Info

Publication number: CN201487114U
Application number: CN2009201618415U
Authority: CN
Inventors: 吴宗信
Original assignee: MINGHONG INTERNATIONAL DEVELOPMENT Co Ltd
Current assignee: MINGHONG INTERNATIONAL DEVELOPMENT Co Ltd
Priority date: 2009-07-03
Filing date: 2009-07-03
Publication date: 2010-05-26
Anticipated expiration: 2019-07-03

Abstract

The utility model relates to a damper comprising an outer pipe unit and a piston unit, wherein the outer pipe unit comprises an outer pipe for defining a containing space; the piston unit comprises a floating plug which is arranged in the containing space and can axially move by pressure and a piston which is arranged in the containing space and can be driven to move axially; the floating plug divides the containing space into a liquid containing area which is positioned therebelow and contains liquid, and a gas containing area which is positioned thereabove and contains gas; while the piston is positioned in the liquid containing area below the floating plug. By the design of the floating plug and the piston, the damper can not only ensure the axial movement of the piston unit in a non-offset manner, but also adjust the pressure in the containing space so as to lead the piston unit to be smoother when in actuating.

Description

Damper

Technical field

The utility model relates to a kind of damper, particularly relates to a kind of being installed in and builds on thing, furniture or the traffic tool so that the damper of cushioning effect to be provided.

Background technique

" damper " is a kind of object that is used to provide cushioning effect, can be installed in and build on thing, furniture or the traffic tool, and because field of employment and associated components difference, the basic kenel of damper and usage mode also can be different, with regard to the damper on being installed in movable article such as door, cabinet door and drawer, it comprises usually: one has the outer pipe unit that a liquid holds the district, and a slotting piston unit that stretches in the outer pipe unit, this piston unit has a piston that is installed in slippingly in the liquid appearance district.When movable article switch, this piston promptly can be by drive and with respect to outer tube unit axial slip, simultaneously and the liquid that can crowded liquid holds in the district it is flowed, so, can make movable article when closing, produce cushioning effect by the design of damper.And this case claimant still further provides the damper of another kind of different structure, allows manufacturer select to use.

Summary of the invention

The purpose of this utility model is that a kind of damper of structure innovation is being provided; design by above-mentioned floating plug and piston; can guarantee that not only the piston unit non-migration earth's axis to moving, more can regulate the pressure that is installed in the space, make piston unit more smooth and easy in start.

The purpose of this utility model and to solve its technical problem be to adopt following technological scheme to realize.According to a kind of damper that the utility model proposes, comprise: an outer pipe unit, a piston unit, this outer tube unit comprises an outer tube, this outer tube defines an axially extended space that is installed in, this is installed in the space and has a underpart, and a upper end portion that is positioned at underpart top, this piston unit comprise one be installed in this outer tube be installed in the space and can be by drive and axially movable piston; Wherein the space that is installed in of this outer tube also has a portion of intermediary that is positioned between underpart and upper end portion and is adjacent to the upper end portion, this piston unit also comprises setting for one and is installed in being installed in the space and can being stressed and axially movable floating plug of this outer tube, this floating plug will be installed in separated by spaces and become a liquid appearance district that is positioned at its below and is installed in liquid, and gas appearance district that is positioned at its top and is installed in gas, and piston is the liquid appearance district that is positioned at the floating plug below, and this liquid is held the trivial first liquid portion that is positioned at its below that is divided into, and second liquid portion that is positioned at its top, this piston unit can be with respect to outer pipe unit an operating position, an enable possition, and move between a release of pressure position, when operating position, this piston shifts near the underpart downwards and floating plug upwards leaves portion of intermediary, when the enable possition, this piston upwards shifts near portion of intermediary and floating plug is positioned at portion of intermediary, when the release of pressure position, this piston is positioned between underpart and portion of intermediary and floating plug is positioned at portion of intermediary.

The purpose of this utility model and solve its technical problem and can also be further achieved by the following technical measures.

Preferably, aforesaid damper, wherein this piston unit also comprises a piston rod that down axially inserts outer tube and floating plug and link piston.

Preferably, aforesaid damper, wherein this piston unit also comprises a ring that is nested with in this piston periphery.

Preferably, aforesaid damper, wherein this piston has the first ring section of an adjacency first liquid portion, one is located at interval at the first ring section top and encircles section in abutting connection with second of the second liquid portion, one connects the first ring section and the second ring section and radially dwindles contract ring section of the bundle that is nested with for ring, article one, by the runner of the first ring section towards the direction depression of the past second ring section of the end face axial of the first liquid portion, and through hole that radially is communicated to the outer circumferential face of the second ring section by runner outward, the diameter of this first ring section and second ring section is all less than the internal diameter of outer tube, the diameter of this first ring section is smaller than the diameter of the second ring section, and the contract diameter of ring section of this bundle is smaller than the diameter of the first ring section again, and the aperture of this through hole is smaller than the width of runner.

Preferably, aforesaid damper, wherein this ring be can be nested with up or down in contract ring section of bundle peripheral, and it is intersegmental with second ring to be positioned at the first ring section, this ring has a lower surface towards the first ring section, the upper surface towards the second ring section, and the outer face that supports that connects the outer periphery of upper surface and lower surface and be adjacent to an internal face of outer tube.

Preferably, aforesaid damper, wherein this outer tube has a diapire, a perisporium that is up extended by the diapire periphery, and a top cover that is sealed on the perisporium apical margin, and this outer pipe unit comprises that also a sealing is installed in the sealing block that is installed in top of space and is positioned at the top cover below.

The utility model compared with prior art has tangible advantage and beneficial effect.By above technology contents as can be known, for achieving the above object, the utility model provides a kind of novel damper, comprises: an outer pipe unit, and a piston unit.This outer tube unit comprises an outer tube, this outer tube defines an axially extended space that is installed in, this is installed in the space and has a underpart, a upper end portion that is positioned at the top, underpart, and a portion of intermediary that is positioned between underpart and upper end portion and is adjacent to the upper end portion.This piston unit comprises setting for one and is installed in being installed in the space and can being stressed and axially movable floating plug of this outer tube, and one be installed in this outer tube be installed in the space and can be by drive and axially movable piston, this floating plug will be installed in the liquid appearance district that separated by spaces becomes its below, a position and is installed in liquid, and its top, position and the gas that is installed in gas hold the district, and piston is the liquid appearance district that is positioned at the floating plug below, and this liquid is held the trivial first liquid portion that is divided into its below, a position, and the second liquid portion of its top, a position.This piston unit can be with respect to outer pipe unit in an operating position, an enable possition, and move between a release of pressure position, when operating position, this piston shifts near the underpart downwards and floating plug upwards leaves portion of intermediary, when the enable possition, this piston upwards shifts near portion of intermediary and floating plug is positioned at portion of intermediary, and when the release of pressure position, this piston is positioned between underpart and portion of intermediary and floating plug is positioned at portion of intermediary.

The beneficial effects of the utility model are: above-mentioned floating plug is that floating ground is located at liquid appearance district and gas appearance interval, when piston moves up and down, floating plug just can relative adjustment be installed in the pressure the space in, makes piston unit more smooth and easy in start, and reality is an innovative design.

In sum, the utility model is a significant progress in technology, and has tangible good effect, really is a new and innovative, progressive, practical new design.

Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.

Description of drawings

Fig. 1 is an exploded perspective view of a preferred embodiment of the utility model damper;

Fig. 2 is a cross-sectional schematic of this preferred embodiment, illustrates that a piston unit is positioned at a release of pressure position with respect to an outer pipe unit;

Fig. 3 is that the some of this preferred embodiment is amplified cross-sectional schematic, show that a piston moves up, and liquid flows to the arrow express liquid among the figure toward current downflow;

Fig. 4 is a cross-sectional schematic of this preferred embodiment, illustrates that this piston unit is positioned at an operating position with respect to this outer pipe unit;

Fig. 5 is a cross-sectional schematic of this preferred embodiment, illustrates that this piston unit is positioned at an enable possition with respect to this outer pipe unit;

Fig. 6 is the view of similar Fig. 3, shows that this piston moves down, and liquid is up mobile, flows to the arrow express liquid among the figure.

Embodiment

For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to the damper that the utility model proposes, its embodiment, structure, feature and effect thereof, describe in detail as after.

See also Fig. 1, Fig. 2 and Fig. 3, the preferred embodiment of the utility model damper, be mounted in and build on thing, furniture or the traffic tool, for example be installed on the movable article such as door, cabinet door and drawer (figure does not show), make movable article reach the buffering or the effect of damping, this damper comprises: an outer pipe unit 1, and a piston unit 2.

Should outer pipe unit 1 comprise hollow and axially extended outer tube 11, and sealing is installed in the interior sealing block 12 of outer tube 11.This outer tube 11 has a diapire 111, a perisporium 112 that is up extended by diapire 111 peripheries, and a top cover 113 that is sealed on perisporium 112 apical margins, and this outer tube 11 defines an axially extended space 13 that is installed in.And sealing piece 12 is mounted in top cover 113 belows, and sealing is installed in the top in space 13.Make this be installed in space 13 and have a underpart 138, a upper end portion 139 that is positioned at 138 tops, underpart, and a portion of intermediary 130 that is positioned at

underpart

138 and 139 of upper end portions and is adjacent to upper end portion 139.

This piston unit 2 comprises setting for one and is installed in being installed in the space 13 and can being stressed and axially movable floating plug 21, are installed in being installed in the space 13 of this outer tube 11 and can be by drive and axially movable piston 22, are nested with peripherally and be adjacent to the ring 23 of outer tube 11 at this piston 22 of this outer tube 11 that and one can be by drive and the piston rod 24 that interlock piston 22 moves together.

This floating plug 21 is to be made by rubber or silica gel material, be will be installed in space 13 liquid that is separated into its below, a position and is installed in liquid hold district 131, and its top, a position and the gas that is installed in gas hold district 132.Floating plug 21 can float along with the pressure between liquid and gas, and just liquid holds the space size in district 131 and gas appearance district 132, can the change relatively along with the displacement up and down of floating plug 21.Liquid in the present embodiment is fluid, and gas is air.

And piston 22 is the liquid appearance districts 131 that are positioned at floating plug 21 belows, and this liquid is held the first liquid portion 133 that district 131 separates into its below, a position, and the second liquid portion 134 of its top, a position, the space size of the first liquid portion 133 and the second liquid portion 134 just, can change relatively along with moving up and down of piston 22, and along with the moving of piston 22, liquid also can be mobile in 134 in the first liquid portion 133 and the second liquid portion.

221, one of the first ring sections that above-mentioned piston 22 has an adjacency first a liquid portion 133 are located at interval at first ring section 221 tops and connect the first ring section, 221 and the second ring section 222 and the bundle that radially dwindles contracts 223, one of ring sections by the runner 224 of the first ring section 221 towards an end face axial of the first liquid portion 133 toward the direction depression of the second ring section 222 in abutting connection with second 222, one of the ring sections of the second liquid portion 134, and a through hole 225 that radially is communicated to an outer circumferential face of second ring sections 222 by runner 224 outward.The diameter of this first ring section, 221 and second ring section 222 all is the internal diameter less than outer tube 11, make

win ring section

221 and 11 formation of outer tube, one first gap 135, the

second ring section

222 and 11 of outer tubes form one second gap 136, bundle

contract ring section

223 and 11 of outer tubes form one be communicated with runner 224 in lead to gap 137, and the diameter of this first ring section 221 is smaller than the diameter of the second ring section 222, the contract diameter of ring section 223 of this bundle is smaller than the diameter of the first ring section 221 again, and the aperture of this through hole 225 is smaller than the width of runner 224.

This ring 23 is an O type ring of being made by rubber or silica gel material, be to be nested with in bundle ring section 223 peripheries of contracting, and be arranged in logical gap 137, and can move up and down in the first ring section, 221 and second 222 of the ring sections, this ring 23 has a lower surface 231 towards the first ring section 221, the upper surface 232 towards the second ring section 222, and the outer face 233 that supports that connects the outer periphery of upper surface 232 and lower surface 231 and be adjacent to the internal face of outer tube 11.

This piston rod 24 is the top covers 113 and sealing block 12 that down axially insert outer tube 11, and pass floating plug 21 central authorities, the bottom is also fixedly connected in piston 22, can drive piston 22 synchronously moves up and down, so piston rod 24 is except by the propping up of top cover 113 and sealing block 12, more can be by floating plug 21 corral supports, so can permanently protect axial non-migration when mobile.

This piston unit 2 can reach between a release of pressure position (see figure 2) and move with respect to outer pipe unit 1 in an operating position (see figure 4), an enable possition (see figure 5).When the operating position of Fig. 4, this piston 22 shifts near underpart 138 downwards, and floating plug 21 upwards leaves portion of intermediary 130.When the enable possition of Fig. 5, this piston 22 upwards shifts near portion of intermediary 130, and floating plug 21 is positioned at portion of intermediary 130.When the release of pressure position of Fig. 2, this piston 22 is positioned at 130 in underpart 138 and portion of intermediary, and floating plug 21 is positioned at portion of intermediary 130.

When opening movable article, this piston 22 can be driven by the operating position of Fig. 4, and upwards move to enable possition as Fig. 5 with respect to outer tube 11, this moment will be as shown in Figure 3, liquid in the second liquid portion 134 can flow downward because of volume dwindles to be extruded, its part liquid can flow downstream into runner 224 by second gap, 136 via through holes 225, and logical gap 137 during partly liquid then can directly be flowed downstream into by second gap 136, thereby can push ring 23 it is moved down, make lower surface 231 down rest on the first ring section 221, and allow upper surface 232 leave the second ring section 222, make liquid pass through in logical gap 137, flow downstream into the runner 224 and first gap 135 more respectively, so liquid can flow downstream in the first liquid portion 133 in a large number apace, simultaneously the make progress impulse force of pushing tow floating plug 21 of liquid fades away, and the air under pressure that gas holds in the district 132 promptly can push floating plug 21, return back to portion of intermediary 130 and allow floating plug 21 move down, movable article can be opened with fast speeds.

Then when closing movable article, this piston 22 can be by the enable possition of Fig. 5, earlier to the release of pressure position that is displaced downwardly to Fig. 2, this moment will be as shown in Figure 6, liquid in the first liquid portion 133 can flow because of volume dwindles to be extruded upwards, order partly liquid directly flow to the second liquid portion 134 by runner 224 via through holes 225, logical gap 137 during partly liquid then can be flowed into by first gap 135, can push this ring 23 simultaneously moves up it, make upper surface 232 up rest on the second ring section 222, and allow lower surface 231 leave the first ring section 221, because ring 23 is subjected to the compressing from runner 224 and first gap, 135 big quantity of fluid, so flattening deformation and make the outer face 233 that supports be closely against outer tube 11 slightly, logical gap 137 is communicated to the slit in second gap 136 in the obstruction, liquid in making in the logical gap 137 can only enter runner 224, and flow to the second liquid portion 134 via through hole 225, the flow velocity that liquid passes through is slack-off, can reach cushioning effect, and when piston 22 moves to the release of pressure position of Fig. 2, because the oil pressure of the second liquid portion 134 is gradually big and arrive critical pressure, so piston 22 by the release of pressure position of Fig. 2 again in the process of the operating position that is displaced downwardly to Fig. 4, liquid in the second liquid portion 134, will begin to push pushing tow floating plug 21 in the hope of discharging excessive pressure, when so piston 22 moves down, floating plug 21 also can move up and push the gas that gas holds district 132, and allows movable article continue with slower speed closure.

In sum; structural design of the present utility model; be to make piston 22 be provided with the runner 224 and narrower through hole 225 of broad; so not only can make liquid smooth and easy mobile; more can regulate the flowing velocity of liquid; make movable article open with fast speeds; and with slower speed closure; and prop up by the corral of above-mentioned floating plug 21; not only can guarantee the piston unit 2 non-migration earth's axis to moving, this floating plug 21 and gas hold the collocation design in district 132, more can appropriate regulation be installed in the pressure in the space 13; excessive and the situation that the liquid outwash is leaked of unlikely generation hydraulic pressure; can allow piston unit 2 more smooth and easy in start, so this damper is innovative design different from the past, the consumption personnel can be provided more diversified selection; to promote product distribution; promote industry development, so can reach the purpose of this utility model really.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art are not in breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.

Claims

1. damper, comprise: an outer pipe unit, a piston unit, this outer tube unit comprises an outer tube, this outer tube defines an axially extended space that is installed in, this is installed in the space and has a underpart, and a upper end portion that is positioned at underpart top, this piston unit comprise one be installed in this outer tube be installed in the space and can be by drive and axially movable piston;

It is characterized in that: the space that is installed in of this outer tube also has a portion of intermediary that is positioned between underpart and upper end portion and is adjacent to the upper end portion, this piston unit also comprises setting for one and is installed in being installed in the space and can being stressed and axially movable floating plug of this outer tube, this floating plug will be installed in separated by spaces and become a liquid appearance district that is positioned at its below and is installed in liquid, and gas appearance district that is positioned at its top and is installed in gas, and piston is the liquid appearance district that is positioned at the floating plug below, and this liquid is held the trivial first liquid portion that is positioned at its below that is divided into, and second liquid portion that is positioned at its top, this piston unit can be with respect to outer pipe unit an operating position, an enable possition, and move between a release of pressure position, when operating position, this piston shifts near the underpart downwards and floating plug upwards leaves portion of intermediary, when the enable possition, this piston upwards shifts near portion of intermediary and floating plug is positioned at portion of intermediary, when the release of pressure position, this piston is positioned between underpart and portion of intermediary and floating plug is positioned at portion of intermediary.

2. damper as claimed in claim 1 is characterized in that this piston unit also comprises a piston rod that down axially inserts outer tube and floating plug and link piston.

3. damper as claimed in claim 2 is characterized in that this piston unit also comprises a ring that is nested with in this piston periphery.

4. damper as claimed in claim 3, it is characterized in that this piston has the first ring section of an adjacency first liquid portion, one is located at interval at the first ring section top and encircles section in abutting connection with second of the second liquid portion, one connects the first ring section and the second ring section and radially dwindles contract ring section of the bundle that is nested with for ring, article one, by the runner of the first ring section towards the direction depression of the past second ring section of the end face axial of the first liquid portion, and through hole that radially is communicated to the outer circumferential face of the second ring section by runner outward, the diameter of this first ring section and second ring section is all less than the internal diameter of outer tube, the diameter of this first ring section is smaller than the diameter of the second ring section, and the contract diameter of ring section of this bundle is smaller than the diameter of the first ring section again, and the aperture of this through hole is smaller than the width of runner.

5. damper as claimed in claim 4, it is characterized in that: this ring be can be nested with up or down in contract ring section of bundle peripheral, and it is intersegmental with second ring to be positioned at the first ring section, this ring has a lower surface towards the first ring section, the upper surface towards the second ring section, and the outer face that supports that connects the outer periphery of upper surface and lower surface and be adjacent to an internal face of outer tube.

6. as claim 1 or 5 described dampers, it is characterized in that this outer tube has a diapire, a perisporium that is up extended by the diapire periphery, and a top cover that is sealed on the perisporium apical margin, this outer pipe unit comprises that also a sealing is installed in the sealing block that is installed in top of space and is positioned at the top cover below.