CN201025290Y

CN201025290Y - Damper

Info

Publication number: CN201025290Y
Application number: CNU2007200023456U
Authority: CN
Inventors: 吴宗信
Original assignee: MINGHONG INTERNATIONAL DEVELOPMENT Co Ltd
Current assignee: MINGHONG INTERNATIONAL DEVELOPMENT Co Ltd
Priority date: 2007-03-08
Filing date: 2007-03-08
Publication date: 2008-02-20
Anticipated expiration: 2017-03-08

Abstract

The utility model relates to a damper, including an external tube unit with an installation space extending along the axial direction, and a piston unit. The piston unit comprises a piston rod, a piston fixed on and moving synchronously with the piston rod, and a flow discharge ring-loop and a stopper ring both arranged on the piston. The piston separates the installation space into two space parts and includes a diameter spreading segment, a connecting segment, and a shrinking segment from large to small in diameter. The diameter spreading segment and the connecting segment are concave to provide a guide channel. The flow discharge ring-loop is arranged surrounding the shrinking segment, and is provided with a first anchor ring facing the diameter spreading segment. Pluralities of grooves are arranged concavely on the first anchor ring. The structure of the piston unit is innovative different from prior structure design, and the arrangements of the guide channel on the piston and the grooves on the flow discharge ring-loop make the liquid flow more smoothly.

Description

Damper

Technical field

The utility model relates to a kind of damper, particularly relates to a kind of damper that can be applied on building, the transportation work and utilize liquid to come start to use.

Background technique

Operated by rotary motion is on building, or the damper on the traffic tool such as locomotive, automobile, understands because of the usage mode difference, and various basic kenel is arranged.Wherein, be used for the damper on the door-plates such as door, furniture, cupboard, usually comprise: one have an outer pipe unit that passage is installed, one can be relatively should outer pipe unit reciprocating shaft piston in being arranged on this installation passage slippingly, and piston rod that combines linkedly with this piston.When door-plate cuts out, the relative flow of fluid that is somebody's turn to do outer pipe unit slippage and drives outer pipe unit inside with piston of piston rod by the design of damper, closes earlier door-plate with fast speeds, and when door-plate is will be fully closed, allow door-plate with slower speed closure to reach buffer function.

Though have the damper of many different structure kenels on the market, but in order to benefit vast consumption masses, provide consumption popular diversified selection, and promote market to buy gas, drive the industry development, this case designer still further innovates the damper of improveing out another kind of different structure, can improve general existing damper and make it have more practicability.Through constantly research, design, and, create the utility model that has practical value finally through after studying sample and improvement repeatedly.

Summary of the invention

The purpose of this utility model is, a kind of damper of different structure is provided, and can make the consumption masses that diversified selection is arranged, and promote industry development, is very suitable for practicality.

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, and piston unit, this outer tube unit comprises an outer tube, this outer tube has an outer tube wall, and one defined and axially extended installing space by this outer tube wall, but this piston unit is installed in this installing space with comprising an axial slip and an end passes the piston rod of this outer tube, and the other end and position piston in this installing space that is fixed in piston rod synchronously movably, described piston separates into one first space portion with this installing space, and one second space portion, wherein: this piston, section is expanded in the footpath that comprises vicinity second space portion, one is expanded the bundle section of contracting of spacer segment and reduced with the footpath, one is connected this directly the section of expansion and bundle contracts intersegmental and diameter less than this section of expansion and greater than the linkage section of this bundle section of contracting directly, and one be arranged with at this guide channel on the section of expansion and the linkage section directly, and this piston unit comprises that also a ring is located at the earial drainage ring on this bundle section of contracting, and correspondence is set on this linkage section and the baffle ring that fits tightly with this outer tube wall, described earial drainage ring has one towards this first anchor ring of the section of expansion directly, and at least one outer periphery from this first anchor ring extends radially inwardly and is arranged with and flows to this guide channel and flow into the groove of this second space portion from this first space portion for liquid.

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

Aforesaid damper, wherein said footpath expand section have one towards and the footpath that connects this linkage section expand the surface, this guide channel is to extend radially inwardly to be arranged with to extend axially from this outer radial periphery edge that directly expands the surface to be arranged with on this linkage section again.

Aforesaid damper, wherein said linkage section has one and connects first joint that this directly expands the surface, and second joint that connects this first joint and the bundle section of contracting and diameter less than this first joint, described guide channel is directly to expand the surface extension from this to be arranged on this first joint.

Aforesaid damper, the interior electrical path length of the diameter of section less than this outer tube wall expanded in wherein said footpath, this earial drainage ring also has second anchor ring that is provided with the first anchor ring back span, and an interior electrical path length connecting ring face that is connected this first, second anchor ring outer radial periphery edge and diameter length less than this outer tube wall.

Aforesaid damper, wherein said baffle ring comprise one towards this directly the 3rd anchor ring, Fourth Ring face, one of the section of expansion towards this earial drainage ring connect the radially inner circumference edge of described third and fourth anchor ring and diameter interior junction surface greater than the diameter of this linkage section, and one connects described the 3rd, the outer radial periphery edge of Fourth Ring face and the outer junction surface of fitting with this outer tube wall.

Aforesaid damper, wherein said baffle ring comprise one towards this directly the 3rd anchor ring, Fourth Ring face, one of the section of expansion towards this earial drainage ring connect the radially inner circumference edge of described the 3rd, Fourth Ring face and diameter interior junction surface greater than the diameter of this linkage section, and one connects described the 3rd, the outer radial periphery edge of Fourth Ring face and the outer junction surface of fitting with this outer tube wall.

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 damper comprises: an outer pipe unit, and a piston unit.This outer tube unit comprises an outer tube, and this outer tube has an outer tube wall, and one is defined and axially extended installing space by this outer tube wall.But this piston unit is installed in this installing space with comprising an axial slip and an end passes the piston rod of this outer tube, together is fixed in to moved further the piston in this installing space of the other end and position of piston rod, and is arranged on an earial drainage ring and a baffle ring on this piston.

Described piston separates into one first space portion with this installing space, and one second space portion, and piston comprise the footpath of vicinity second space portion expand section, one and footpath expand the bundle section of contracting of spacer segment and reduced, one be connected this directly the section of expansion and restrainting contract intersegmental and diameter less than this section of expansion and directly greater than the linkage section of this bundle section of contracting, and one is arranged with at this guide channel on the section of expansion and the linkage section directly.This earial drainage ring is that ring is located on this bundle section of contracting, and has one towards this first anchor ring of the section of expansion directly, and at least one outer periphery from this first anchor ring extends radially inwardly the groove that is arranged with.This baffle ring is that correspondence is set on this linkage section, and fits tightly with this outer tube wall.Do the time spent when being subjected to external force, this piston unit moves axially this outer tube unit relatively, and this first space portion volume is dwindled, and its inner liquid is squeezed and flows to this second space portion via this groove, guide channel.

By technique scheme, the utility model damper has following advantage and beneficial effect at least: the structure of above-mentioned piston unit is innovation structure design different from the past, and setting by the groove of the guide channel of this piston and earial drainage ring, can make flowing of liquid more smooth and easy, be very suitable for practicality.

In sum, the utility model provides a kind of damper of different structure, can make the consumption masses that diversified selection is arranged, and promotes industry development.It has above-mentioned plurality of advantages and use value, no matter bigger improvement is all arranged on product structure or function, obvious improvement is arranged technically, and produced handy and practical effect, and more existing damper has the outstanding effect of enhancement, thereby being suitable for practicality more, and having the extensive value of industry, 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 a composite structure stereogram, shows that a most preferred embodiment of the utility model damper is installed on the pre-earnest by a fixing device.

Fig. 2 is the sectional view of this most preferred embodiment.

Fig. 3 is the exploded perspective view of the subelement of this most preferred embodiment.

Fig. 4 is the local amplification view of this most preferred embodiment, shows a state that piston unit moves towards one first space portion of this damper simultaneously.

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 its embodiment of damper, structure, feature and the effect thereof that the utility model proposes, describe in detail as after.

See also Fig. 1, shown in Figure 2, Fig. 1 is that the utility model damper one most preferred embodiment is installed in a composite structure stereogram on the pre-earnest by a fixing device, and Fig. 2 is a sectional view.The damper 1 of the utility model most preferred embodiment, be to be installed in one for example on the pre-earnest 9 of door-plate by a fixing device 8, make this pre-earnest 9 reach effects such as buffering or damping, this damper 1 comprises: an outer pipe unit 2, and a piston unit 3.

Present embodiment above-mentioned outer pipe unit 2, comprise: a hollow outer tube 4 around a central axis setting, a secure bond are arranged on second oil sealing 22 below first oil sealing 21 first oil sealing 21, a next-door neighbour on the top of outer tube 4, and one is close to second oil sealing 22 and the sealing seat 23 of setting.Wherein, this outer tube 4 is that an end seals the open structural design of an end, its open end be towards and be arranged in this fixing device 8, its closed end is to expose to this fixing device 8, and outer tube 4 has one around a central axis and have the outer tube wall 41 of an internal face 411, and one is defined and axially extended installing space 40 by this outer tube wall 41.

See also Fig. 2, Fig. 3, shown in Figure 4, Fig. 3 is the exploded perspective view of the subelement of the utility model most preferred embodiment, and Fig. 4 shows the local amplification view of a piston unit of this damper towards one first space portion mobile status simultaneously.Above-mentioned piston unit 3, be to be mounted in this outer tube 4, and comprise that these first oil sealings 21 and second oil sealing 22 are passed in a top and the piston rod 31, that up stretches out these outer tube 4 tops is fixed in the piston 5 of the bottom of piston rod 31, and be set on an earial drainage ring 6 and a baffle ring 7 on this piston 5.

But described piston rod 31 is axial slip ground to be installed, this piston 5 is to combine movably synchronously and be embedded in the installing space 40 of this outer tube 4 with this piston rod 31, and with installing space 40 separate into one be positioned at the below first space portion 401, and second space portion 402 that is positioned at the top, and these space portions 401, be perfused with liquid in 402 respectively, described piston 5 comprises that is positioned at the top and the circular footpath expansion section 51 of contiguous sealing seat 23, one is located at interval at this directly bundle section of contracting 52 of the section of expansion 51 belows, one is connected this directly section of expansion 51 and the linkage section 53 of bundle between the section of contracting 52, and one is arranged with at this guide channel 54 on the section of expansion 51 and the linkage section 53 directly.

Wherein, this is the section of expansion 51 directly, comprises one towards expansion surface, the footpath of this linkage section 53 511; This linkage section 53 comprises that connects first joint 531 that this directly expands surface 511, and one connects this first joint 531 and second joint 532 of restrainting the section of contracting 52; This guide channel 54 is to extend radially inwardly to be arranged with to extend axially from this outer radial periphery edge that directly expands surface 511 to be arranged with on this first joint 531 again.The diameter length of the piston 5 of present embodiment is stepped variation, directly the diameter of the section of expansion 51 is maximum and be slightly less than the interior electrical path length of this outer tube wall 41 for this, the diameter of this first joint 531 is less than this section of expansion 51 directly, the diameter of this second joint 532 is less than this first joint 531, and the diameter of this bundle section of contracting 52 is minimum.

This earial drainage ring 6 is that ring is located on this bundle section of contracting 52, and the earial drainage ring 6 of present embodiment and piston 5 be that moulding is assembled again respectively, and earial drainage ring 6 also can be one-body molded with this piston 5 when reality is implemented.Described earial drainage ring 6 and have one around a central axis and towards this directly first anchor ring 61, of the section of expansion 51 be connected anchor ring 63 and four grooves 64 that the interval is arranged with towards this second anchor ring 62 from this first anchor ring 61 with second anchor ring 62, of first anchor ring, 61 back span settings is connected these first,

second anchor ring

61,62 outer radial periphery edge.Wherein, the diameter length of this connection anchor ring 63 is the interior electrical path length less than this outer tube wall 41, so this connection anchor ring 63 is not fit with the internal face 411 of this outer tube 4, these grooves 64 are to be the equal angles compartment of terrain to extend radially inwardly from the outer radial periphery edge of first anchor ring 61.

This baffle ring 7, the footpath that is arranged on this piston 5 is expanded between section 51 and this earial drainage ring 6, just correspondence is set on this linkage section 53, and the thickness of baffle ring 7 is less than the thickness of linkage section 53, and comprise one towards this 3rd anchor ring 71 of the section of expansion 51 directly, one Fourth Ring face 72 towards this earial drainage ring 6, one connects this grade in an imperial examination three, Fourth Ring face 71, the interior junction surface 73 of 72 radially inner circumference edge, and one connect this grade in an imperial examination three, Fourth Ring face 71, the outer junction surface 74 of 72 outer radial periphery edge, the diameter length of junction surface 73 is the diameter lengths greater than this linkage section 53 in being somebody's turn to do, diameter length that should outer junction surface 74 is the interior electrical path length that equals this outer tube wall 41, and institute's internal face 411 of junction surface 74 and outer tube 4 in addition is to be for fitting tightly.

The utility model in use, when being subjected to an external force that makes progress, this outer tube 4 does the time spent, this piston unit 3 can should move axially downwards by outer pipe unit 2 relatively, the volume of this first space portion 401 is dwindled, its inner liquid is squeezed and flows to this second space portion 402, liquid can upwards flow via the slit between this earial drainage ring 6 and the outer tube wall 41, again via the slit between the linkage section 53 of the interior junction surface 73 of baffle ring 7 and piston 5, slit flow between section 51 and the outer tube wall 41 is expanded to this second space portion 402 in the footpath.Because liquid can cause a strength of upwards pushing this baffle ring 7 when upwards flowing, and then make its 3rd anchor ring 71 and this expand directly to fit (as shown in Figure 4) in surface 511 and may barrier liquid flow, but because this directly the section of expansion 51 and linkage section 53 are provided with this guide channel 54, so can't directly expanding surface 511 with this, the 3rd anchor ring 71 fits tightly fully, even therefore baffle ring 7 this directly section of expansion 51 that reclines, liquid still can flow to second space portion 402 from this guide channel 54.

When outer tube 4 is subjected to this external force that upwards acts on disappearance, liquid no longer is subjected to the upwards strength of extruding, so will flow back into first space portion 401 from second space portion 402, at this moment, relative this outer pipe unit 2 of these piston unit 3 meetings upwards moves axially and makes downward liquid flow.Similarly, because downward liquid flow can be pushed this baffle ring 7 downwards, and then make its Fourth Ring face 72 and first anchor ring 61 of earial drainage ring 6 fit, and the possibility barrier liquid is mobile, but because this first anchor ring 61 is provided with these grooves 64, this earial drainage ring 6 so even baffle ring 7 reclines, liquid still can flow to these grooves 64, flows downward to first space portion 401 via the slit between this earial drainage ring 6 and the outer tube wall 41 again.

By above explanation as can be known, the structure of this piston unit 3 of the utility model is innovation structure designs different from the past, and the setting of the groove 64 of the guide channel 54 of this piston 5 and earial drainage ring 6, can make flowing of liquid more smooth and easy.By the damper 1 that this kind different structure is provided, can make the consumption masses that diversified selection is arranged, and promote to buy gas, lifting industry development.

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, and piston unit, this outer tube unit comprises an outer tube, this outer tube has an outer tube wall, and one defined and axially extended installing space by this outer tube wall, but this piston unit is installed in this installing space with comprising an axial slip and an end passes the piston rod of this outer tube, and the other end and position piston in this installing space that is fixed in piston rod synchronously movably, described piston separates into one first space portion with this installing space, and one second space portion, it is characterized in that:

This piston, section is expanded in the footpath that comprises vicinity second space portion, one is expanded the bundle section of contracting of spacer segment and reduced with the footpath, one is connected this directly the section of expansion and bundle contracts intersegmental and diameter less than this section of expansion and greater than the linkage section of this bundle section of contracting directly, and one be arranged with at this guide channel on the section of expansion and the linkage section directly, and this piston unit comprises that also a ring is located at the earial drainage ring on this bundle section of contracting, and correspondence is set on this linkage section and the baffle ring that fits tightly with this outer tube wall, described earial drainage ring has one towards this first anchor ring of the section of expansion directly, and at least one outer periphery from this first anchor ring extends radially inwardly and is arranged with and flows to this guide channel and flow into the groove of this second space portion from this first space portion for liquid.

2. damper as claimed in claim 1, it is characterized in that wherein said footpath expand section have one towards and the footpath that connects this linkage section expand the surface, this guide channel is to extend radially inwardly to be arranged with to extend axially from this outer radial periphery edge that directly expands the surface to be arranged with on this linkage section again.

3. damper as claimed in claim 2, it is characterized in that wherein said linkage section has one and connects first joint that this directly expands the surface, and second joint that connects this first joint and the bundle section of contracting and diameter less than this first joint, described guide channel is directly to expand the surface extension from this to be arranged on this first joint.

4. damper as claimed in claim 1, it is characterized in that the interior electrical path length of the diameter of wherein said footpath expansion section less than this outer tube wall, this earial drainage ring also has second anchor ring that is provided with the first anchor ring back span, and an interior electrical path length connecting ring face that is connected this first, second anchor ring outer radial periphery edge and diameter length less than this outer tube wall.

5. damper as claimed in claim 1, it is characterized in that wherein said baffle ring comprise one towards this directly the 3rd anchor ring, Fourth Ring face, one of the section of expansion towards this earial drainage ring connect the radially inner circumference edge of described third and fourth anchor ring and diameter interior junction surface greater than the diameter of this linkage section, and one connects described the 3rd, the outer radial periphery edge of Fourth Ring face and the outer junction surface of fitting with this outer tube wall.

6. damper as claimed in claim 4, it is characterized in that wherein said baffle ring comprise one towards this directly the 3rd anchor ring, Fourth Ring face, one of the section of expansion towards this earial drainage ring connect the radially inner circumference edge of described the 3rd, Fourth Ring face and diameter interior junction surface greater than the diameter of this linkage section, and one connects described the 3rd, the outer radial periphery edge of Fourth Ring face and the outer junction surface of fitting with this outer tube wall.