CN201447992U - Damper for furniture - Google Patents

Damper for furniture Download PDF

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Publication number
CN201447992U
CN201447992U CN2009200625286U CN200920062528U CN201447992U CN 201447992 U CN201447992 U CN 201447992U CN 2009200625286 U CN2009200625286 U CN 2009200625286U CN 200920062528 U CN200920062528 U CN 200920062528U CN 201447992 U CN201447992 U CN 201447992U
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China
Prior art keywords
piston
valve block
oily passage
communicated
face
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Expired - Lifetime
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CN2009200625286U
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Chinese (zh)
Inventor
伍志勇
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Individual
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Individual
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Priority to CN2009200625286U priority Critical patent/CN201447992U/en
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/02—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/21—Brakes
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/252—Type of friction
    • E05Y2201/254—Fluid or viscous friction
    • E05Y2201/256—Fluid or viscous friction with pistons or vanes
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/262—Type of motion, e.g. braking
    • E05Y2201/264—Type of motion, e.g. braking linear
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/20—Application of doors, windows, wings or fittings thereof for furniture, e.g. cabinets

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  • Fluid-Damping Devices (AREA)

Abstract

A damper for furniture comprises a piston rod, as well as a piston and a valve plate that are arranged inside a cylinder body, wherein one end of the piston rod is fixedly connected with a piston and the other end thereof extends out of the cylinder body. The damper is characterized in that a circuitous oil passing channel is arranged on the piston and/or the valve plate and consists of an end surface groove and an oil passing channel, wherein the end surface groove is arranged on the end surface of the piston and/or the valve plate; the oil passing channel is communicated with the end surface groove and communicates two ends of the piston and/or the valve plate; the end surface groove is not led directly to the inner wall of the cylinder body; when the circuitous oil passing channel is arranged on the piston, the valve plate is provided with an oil passing path communicated with the circuitous oil passing channel on the piston; when the circuitous oil passing channel is arranged on the valve plate, the piston is provided with an oil passing channel communicated with the circuitous oil passing channel on the valve plate; and when both the piston and the valve plate are provided with the circuitous oil passing channel respectively, the two circuitous oil passing channels are communicated mutually. In the utility model, when in damped movement of the piston, the damper can guarantee that the wall of a cylinder is not impacted when quantitative damping oil flows through the circuitous oil passing channel, thus greatly prolonging the service life of the damper.

Description

A kind of domestic damper
Technical field
The utility model relates to a kind of damper, particularly a kind of domestic damper that is applicable to hinge for furniture, drawer sliding rail etc.
Background technology
I disclose a kind of domestic damper in China Patent No. ZL 200720060587.0, damper comprises the piston rod that is arranged in the cylinder body, piston rod one end and piston join, the middle part joins with seal, damper also comprises damping fin and the banking stop that is arranged in the cylinder body, piston, damping fin and banking stop join successively, piston rod one end stretches in the cylinder body, after passing banking stop and damping fin, join with piston, the piston arranged outside has one and above axial gap, damping fin is provided with circular step towards banking stop one side, banking stop is provided with location short column, piston towards damping fin one side, keep certain oil-gap of crossing between damping fin and banking stop and the inboard wall of cylinder block.Piston is provided with one and above location pilum, and the location pilum is provided with the less last reference column of external diameter.When the piston of this structure sharply moved, the damping fin deflection increased, and the passage that undue shutoff resisting medium is flowed through can occur, and causes piston rod to bear greater impact, and bending easily for fear of above-mentioned situation, needs to do further perfect to this structure.
The utility model content
The purpose of this utility model aims to provide a kind of long service life, production and processing is easy and the low domestic damper of cost cost, to overcome weak point of the prior art.
A kind of domestic damper by this purpose design, comprise piston rod, be arranged on piston and valve block in the cylinder body, piston rod one end is fixedlyed connected with piston, the other end stretches out outside the cylinder body, its architectural feature is that piston and/or valve block are provided with the tortuous oily passage of crossing, its passage is by the end face groove that is arranged on piston and/or the valve block end face, and be communicated with the end face groove, and the oily passage of the mistake that is communicated with piston and/or valve block two ends constitutes, wherein, the end face groove does not directly lead to inboard wall of cylinder block, when avoiding the piston damped motion, damping oil directly rushes at inboard wall of cylinder block, thereby cylinder body is impacted; When complications are crossed oily passage and are arranged on piston, valve block be provided be communicated with piston tortuous cross oily passage cross the oil circuit footpath; Tortuous when crossing oily passage and being arranged on valve block, piston is provided with and is communicated with the tortuous oily passage of mistake of crossing oily passage of valve block; Piston and valve block are provided with tortuous when crossing oily passage, and both complications are crossed oily passage and are interconnected.
Described piston outer wall or axis direction are provided with piston and cross oily passage, are provided with L-shaped piston end surface groove towards the end face of valve block, cross oily channel connection with piston, and constitute to small part that piston is tortuous crosses oily passage; The end that valve block and piston are provided with the piston end surface groove is located by connecting, and is provided with and is communicated with the tortuous valve block of crossing oily passage of piston and crosses the oil circuit footpath; Piston rod and piston towards or dorsad an end of valve block fixedly connected.The valve block of described valve block is crossed oil circuit directly for being arranged on first flow channels at middle part, is communicated with the piston end surface groove.
Described piston outer wall or axis direction are provided with piston and cross oily passage, are provided with the piston end surface groove that is in-line, arc or annular towards the end face of valve block, cross oily channel connection with piston, constitute to small part that piston is tortuous crosses oily passage; The end that valve block and piston are provided with the piston end surface groove is located by connecting, and is provided with and is communicated with the tortuous valve block of crossing oily passage of piston and crosses the oil circuit footpath; Piston rod and piston towards or dorsad an end of valve block fixedly connected. the middle part of valve block is provided with first flow channels, and valve block is crossed oil circuit and directly comprised and be arranged on second flow channels that the first flow channels side is other or inside wall is communicated with the piston end surface groove.
Described piston outer wall or axis direction are provided with piston and cross oily passage, towards or dorsad an end of valve block fixedly connected with piston rod; Valve block and piston are located by connecting, and are provided with the valve block end face groove of crossing oily channel connection with piston towards piston end face, and also be provided with the valve block that is communicated with valve block end face groove on the valve block and cross oily passage, and to the tortuous oily passage excessively of small part formation valve block.Valve block is provided with the valve block end face groove of crossing L-shaped, arc, annular, P shape or the in-line of oily channel connection with piston towards piston end face, valve block is crossed oily passage and is arranged on valve block end face periphery and/or middle part, is communicated with valve block end face groove or piston end surface groove.
The end that piston that one end of described valve block dorsad is connected with piston rod and valve block join also is provided with groove, slide in the groove and be provided with second valve block, the bottom surface is provided with the 3rd flow channels that is communicated with the piston two ends, and second valve block is provided with the 4th flow channels with the dislocation of the 3rd flow channels.
One end of described valve block dorsad extends more than one location pilum with the corresponding valve block of piston that piston rod connects, with valve block location socket; Perhaps, pilum upper end, location is provided with the less last reference column of external diameter, with the spacing back-up ring in chute/hole fixedly connected.
A described end towards valve block extends more than one location pilum with the corresponding valve block of piston that piston rod connects, with valve block location socket; Also be provided with damping fin between valve block outer wall or valve block and the positive stop, the oily passage of mistake of the corresponding valve block of damping fin is provided with through hole; A valve block side of piston dorsad also is provided with positive stop, positive stop be with the spacing back-up ring in chute/hole, pilum upper end, location is provided with the less last reference column of external diameter, fixedly connected with spacing back-up ring, perhaps, positive stop be with the spacing snap ring in chute/hole, the piston rod correspondence is provided with annular slot, is located by connecting with spacing snap ring.
The utility model piston and/or valve block are provided with the tortuous oily passage of crossing, the horizontal segment passage of its passage does not lead to inboard wall of cylinder block, during the piston damped motion, guarantee that the damping oil that quantitative flow is crossed oily passage through complications does not impact to casing wall, improve damper application life.It is simple and reasonable, good buffer effect, cost cost are low.
Description of drawings
Fig. 1 is the utility model first embodiment decomposition texture schematic diagram.
Fig. 2 is a piston structure schematic diagram among Fig. 1.
Fig. 3 is Fig. 1 middle valve plate structural representation.
Fig. 4 assembles back sectional structure schematic diagram for Fig. 1.
Fig. 5 is another embodiment structural representation of piston.
Fig. 6 is Fig. 5 pistons work theory structure schematic diagram.
Fig. 7 is-Figure 14 is a plurality of embodiment structural representations of valve block.
Figure 15-Figure 19 is for being-a plurality of piston structure schematic diagrames that Figure 14 middle valve plate is used in combination with Fig. 7.
Figure 20 is the damping fin structural representation.
Figure 21 is another embodiment structural representation of piston.
Figure 22 is a piston user mode partly cut-away structural representation among Figure 21.
Figure 23 is the another embodiment structural representation of piston.
Figure 24 is a piston user mode partly cut-away structural representation among Figure 23.
Figure 25 is another embodiment decomposition texture schematic diagram of the utility model.
Figure 26 is piston among Figure 25, valve block and spacing back-up ring syndeton schematic diagram.
Figure 27 is a piston structure schematic diagram among Figure 25.
Figure 28 is a piston user mode partly cut-away structural representation among Figure 27.
Figure 29-Figure 33 is a plurality of embodiment structural representations of piston among Figure 25.
Figure 34 is the another embodiment of a utility model partly cut-away structural representation.
Figure 35 is a piston structure schematic diagram among Figure 34.
Figure 36 is the second valve structure schematic diagram.
Figure 37 is-Figure 39 is a plurality of embodiment structural representations of piston among Figure 34.
Figure 40 is the utility model embodiment decomposition texture schematic diagram again.
Figure 41 is piston among Figure 40, second valve block and valve block syndeton schematic diagram.
Figure 42 is a piston structure schematic diagram among Figure 40.
Figure 43 is the operating principle structural representation.
Figure 44 is another example structure schematic diagram of piston among Figure 40.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
First embodiment
Referring to Fig. 1-Fig. 3, this domestic damper is the pulling force buffer damper, mainly be installed in the hinge, comprise piston rod 10, be arranged on piston 7 and valve block 6 in the cylinder body 1, piston rod one end passes sealing ring 2, baffle plate 3, spacing snap ring 4, damping fin 5 and valve block successively fixedlys connected with piston, the other end stretches out outside the cylinder body, and the cylinder body tail end also is provided with sponge 8, and by end cover 9 with each component packages in cylinder body.Piston rod 10 corresponding spacing snap rings 4 are provided with draw-in groove, and piston 7 extends location pilum 7.4 towards the end face both sides of valve block, be located by connecting with valve block 6 and damping fin 5 successively, and valve block and damping fin slide between spacing snap ring and piston.
Be provided with in the piston 7 that piston is tortuous crosses oily passage, its passage is crossed oily passage 7.1 and is arranged on the piston end surface groove 7.3 of piston on the end face of valve block 6 by the piston that is arranged on piston outer wall and is communicated with its two ends and constitutes.Piston end surface groove 7.3 curved shapes L shaped, one end is positioned at the piston end surface middle part, the sidepiece that the other end and piston are crossed oily passage 7.1 (is positioned at piston and crosses oily passage sidepiece because piston end surface groove and piston are crossed an end of oily channel connection, directly do not point to the inboard wall of cylinder block direction, casing wall is not impacted, under situation about effectively cushioning, the application life of improving damper greatly) be communicated with.Valve block 6 middle parts are provided with piston end surface groove 7.3 and are positioned at first flow channels 6.1 that the end at piston middle part is communicated with, and the corresponding pilum 7.4 of locating is provided with locating hole 6.2, the first flow channels 6.1 and is set on the piston rod 10.
Its operating principle is: referring to Fig. 4, when piston rod pulls out piston, the damping oil that is positioned at piston upper end oil pocket flows toward below oil pocket direction, see the A direction of arrow among the figure, along damping fin 5 centre bores, the valve block 6 first flow channels piston end surface groove 7.3 of flowing through, damping oil has changed direction (but directly not rushing at casing wall) to damping oil, and has reduced flow successively, play the effect of buffering, finally cross oily passage 7.1 and lead to the below oil pocket from the inflow piston.
Above-mentioned valve block is the hard valve block, replaceable is valve block among Fig. 7-Figure 14. referring to Fig. 7, the center of valve block 16 is provided with first flow channels 16.1, the first flow channels side is other to be provided with the second flow channels 16.3. that is communicated with the piston end surface groove referring to Fig. 8, the center of valve block 26 is provided with first flow channels 26.1, the first flow channels inside wall is provided with the second flow channels 26.3. that is communicated with the piston end surface groove referring to Fig. 9 and Figure 12, valve block 36 and 66 is provided with the valve block end face groove 36.4 and 66.4 of crossing the L-shaped of oily channel connection or P shape with piston towards piston end face, its middle part, surface and periphery are provided with the valve block that is communicated with valve block end face groove or piston end surface groove and cross oily passage 36.1,36.3 and 66.1,66.3. referring to Figure 10, Figure 11 and 14, valve block 46,56 and 86 are provided with piston towards piston end face and cross the curved of oily channel connection, the valve block end face groove 46.4 of annular or in-line, 56.4 and 86.4, the middle part is provided with first flow channels 46.1,56.1 and 86.1, first flow channels side side is provided with the valve block that is communicated with valve block end face groove or piston end surface groove and crosses oily passage 46.3,56.3 and 86.3. is referring to Figure 13, valve block 76 is provided with the L-shaped valve block end face groove 76.4 of crossing oily channel connection with piston towards piston end face, and the middle part is provided with the valve block that is communicated with valve block end face groove or piston end surface groove and crosses oily passage 76.1.
Second embodiment
Referring to Fig. 5 and Fig. 6, be provided with the piston complications in the piston 17 and cross oily passage, its passage is crossed oily passage 17.1 (piston is crossed the hole of oily passage for connection piston two ends) and is arranged on the piston end surface groove 17.3 of piston on the end face of valve block 6 for the piston that is communicated with the piston two ends and constitutes.When the B direction of arrow is the piston damped motion among Fig. 6, the flow direction of damping oil.Other does not state part with first embodiment.
The 3rd embodiment
Referring to Fig. 7, referring to Figure 15 and Figure 20, piston 27 axis directions are provided with the piston that is communicated with its two ends and cross oily passage 27.1, end towards valve block 16 is provided with the piston end surface groove 27.3 that is in-line, crosses oily channel connection with piston, constitutes the piston complications and crosses oily passage.Valve block 16 is provided with and is communicated with its two ends and is communicated with tortuous second flow channels 16.3 of crossing oily passage of piston.Damping fin 15 is provided with centre bore 15.1, is set on the piston rod, and central periphery is respectively arranged with damping fin locating hole 15.2 that is located by connecting with piston location pilum and the opening 15.3 excessively that is communicated with second flow channels 16.3.Other does not state part with first embodiment.
Above-mentioned piston is replaceable to be piston among Figure 16-Figure 19.Referring to Figure 16, Figure 17, piston 37 and 47 outer walls are provided with the piston that is communicated with its two ends and cross oily passage 37.1 and 47.1, are respectively arranged with the piston end surface groove 37.3 and 47.3 of arc and annular towards the end face of valve block, cross oily channel connection with piston.Referring to Figure 18 and Figure 19, piston 57 and 67 axially is provided with the piston that is communicated with its two ends and crosses oily passage 57.1 and 67.1, is respectively arranged with the piston end surface groove 57.3 and 67.3 of arc and annular towards the end face of valve block, crosses oily channel connection with piston.
Wherein, above-mentioned piston can cooperate among first embodiment referring to the described valve block use of Fig. 7-Figure 14.
The 4th embodiment
Referring to Figure 21, Figure 22, piston 77 outer walls are provided with the piston that runs through its two ends and cross oily passage 77.1.Valve block 76 is provided with the valve block end face groove 76.4 of crossing oily channel connection with piston towards piston end face, and the center is provided with the valve block that runs through its two ends and crosses oily passage on the valve block, is communicated with valve block end face groove, constitutes the valve block complications and crosses oily passage.Perhaps, referring to Figure 23 and Figure 24, piston 87 axially is provided with the piston oil-through hole 87.1 that runs through its two ends, is communicated with valve block end face groove 76.4.Valve block 76 is replaceable to be the valve block 36,46,56,66 and 86 described in first embodiment, and its structure is described no longer one by one.Other does not state part with first embodiment.
Its operating principle is: when the piston damped motion, damping oil is crossed oily passage through the valve block at damping fin 5 centre bores and valve block center successively along the D direction of arrow among the C direction of arrow or Figure 24 among Figure 22 and is flowed into valve block end face groove, flows in the oil pocket of piston opposite side after the change direction.
The 5th embodiment
Referring to Figure 25-Figure 28, this domestic damper is the thrust isolation damper, mainly be installed in the drawer sliding rail, comprise piston rod 10, be arranged on piston 37 ' and valve block 16 in the cylinder body 1 ', piston rod one end passes sealing ring 2 successively fixedlys connected with piston one end with baffle plate 3, and the other end stretches out outside the cylinder body; Location pilum (structure can with reference to the location pilum 7.4 of figure 2) is extended in piston other end both sides, be located by connecting with valve block, pilum end, location also is provided with the less last reference column of external diameter (structure can with reference to the last reference column 7.5 of figure 2), fixedly connected with spacing back-up ring 14, valve block slides between spacing back-up ring and piston.The cylinder body tail end also is provided with sponge 8, and by end cover 9 with each component packages in cylinder body
Piston 37 ' outer wall is provided with the piston that is communicated with its two ends and crosses oily passage 37.1 ', is provided with curved piston end surface groove 37.3 ' towards an end periphery of valve block 16, crosses oily channel connection with piston, constitutes that piston is tortuous crosses oily passage; Valve block is provided with and is communicated with its two ends and is communicated with the tortuous oily passage of mistake of crossing oily passage of piston, crosses second flow channels 16.3 that oily passage is arranged on the valve block central periphery.
Above-mentioned piston is replaceable to be piston among Figure 29-Figure 31.Referring to Figure 29, piston 47 ' outer wall is provided with the piston that is communicated with its two ends and crosses oily passage 47.1 ', is provided with the piston end surface groove 47.3 ' of annular towards the end face of valve block, crosses oily channel connection with piston.Referring to Figure 30 and Figure 31, piston 57 ' and 67 ' axially is provided with the piston that is communicated with its two ends and crosses oily passage 57.1 ' and 67.1 ', end face towards valve block is respectively arranged with arc and annular piston end surface groove 57.3 ' and 67.3 ', crosses oily channel connection with piston.
Wherein, above-mentioned piston can cooperate among first embodiment referring to the described valve block use of Fig. 7-Figure 14.
Its operating principle is: referring to Figure 28, when by piston rod during toward interior promotion piston, the damping oil that is positioned at the inner oil pocket of piston flows toward outer end oil pocket direction, see the E direction of arrow among the figure, along spacing back-up ring and the second flow channels 16.3 piston end surface groove 37.3 ' of flowing through, damping oil has changed direction to damping oil, and has reduced flow successively, play the effect of buffering, finally cross oily passage 37.1 ' and lead to the outer end oil pocket from a side inflow piston.
The 6th embodiment
Referring to Figure 32 and Figure 33, piston 77 ', 87 ' outer wall or axis direction are provided with the piston that is communicated with its two ends and cross oily passage 77.1 ' and 87.1 ', and cooperate among first embodiment referring to described any valve block 36,46,56,66,76 of Fig. 9-Figure 14 and 86 uses.Other does not state part with the 5th embodiment.
The 7th embodiment
Referring to Figure 34-Figure 36, piston 37 " end that joins with valve block 16 is provided with piston end surface groove 37.3 " and groove 37.4 ", outer wall is provided with the piston at its two ends of connection and crosses oily passage 37.1 "; Slide in the groove and be provided with second valve block 11, the bottom surface is provided with the 3rd flow channels 37.5 that is communicated with the piston two ends ", second valve block is provided with the 4th flow channels 11.1 with the dislocation of the 3rd flow channels.Other does not state part with the 5th embodiment.
The operating principle of its second valve block is, when the piston damped motion, second valve block 11 and detent 37.4 " bottom is adjacent to, and sealed the 3rd flow channels 37.5 "; During the piston reverses direction motion, second valve block floats, and damping oil flows to the piston opposite side through the 3rd flow channels and the 4th flow channels 11.1.
Above-mentioned piston is replaceable to be piston among Figure 37-Figure 39.Referring to Figure 36, piston 47 " outer wall is provided with the piston that is communicated with its two ends and crosses oily passage 47.1 ", be provided with the piston end surface groove 47.3 of annular towards the end face of valve block ", cross oily channel connection with piston.Referring to Figure 38 and Figure 39, piston 57 " and 67 " axially be provided with the piston that is communicated with its two ends and cross oily passage 57.1 " and 67.1 ", be respectively arranged with the piston end surface groove 57.3 of arc and annular towards the end face of valve block " and 67.3 ", oily channel connection crossed with piston.Simultaneously, piston 47 ", 57 " and 67 " end that joins with valve block also is provided with groove, groove floor is provided with the 3rd flow channels that is communicated with the piston two ends.
Wherein, above-mentioned piston can cooperate among first embodiment referring to the described valve block use of Fig. 7-Figure 14.
The 8th embodiment
Referring to Figure 40-Figure 44, piston 77 ", 87 " end that joins with valve block also is provided with groove, outer wall or axis direction are provided with the piston that is communicated with its two ends and cross oily passage 77.1 " and 87.1 ", and cooperate among first embodiment referring to described any valve block 36,46,56,66,76 of Fig. 9-Figure 14 and 86 uses.Other does not state part with the 7th embodiment.During the piston damped motion, damping oil is crossed oily passage 46.3, valve block end face groove 46.4 and piston through valve block successively along the G direction of arrow and is crossed oily passage 77.1 " flow in the relative oil pocket of piston opposite side.

Claims (10)

1. domestic damper, the piston and the valve block of comprise piston rod (10), be arranged on cylinder body (1), (1 ') is interior, piston rod one end is fixedlyed connected with piston, the other end stretches out outside the cylinder body, it is characterized in that piston and/or valve block are provided with the tortuous oily passage of crossing, and its passage is by the end face groove that is arranged on piston and/or the valve block end face, and be communicated with the end face groove, and the oily passage of the mistake that is communicated with piston and/or valve block two ends constitutes, and wherein, the end face groove does not directly lead to inboard wall of cylinder block; When complications are crossed oily passage and are arranged on piston, valve block be provided be communicated with piston tortuous cross oily passage cross the oil circuit footpath; Tortuous when crossing oily passage and being arranged on valve block, piston is provided with and is communicated with the tortuous oily passage of mistake of crossing oily passage of valve block; Piston and valve block are provided with tortuous when crossing oily passage, and both complications are crossed oily passage and are interconnected.
2. domestic damper according to claim 1, it is characterized in that described piston (7), (17) outer wall or axis direction are provided with piston and cross oily passage (7.1), (17.1), end face towards valve block is provided with L-shaped piston end surface groove (7.3), (17.3), cross oily channel connection with piston, and to the tortuous oily passage excessively of small part formation piston; The end that valve block and piston are provided with the piston end surface groove is located by connecting, and is provided with and is communicated with the tortuous valve block of crossing oily passage of piston and crosses the oil circuit footpath; Piston rod (10) and piston towards or dorsad an end of valve block fixedly connected.
3. domestic damper according to claim 2 is characterized in that the valve block of described valve block (6) is crossed oil circuit directly for being arranged on first flow channels (6.1) at middle part, is communicated with piston end surface groove (7.3), (17.3).
4. domestic damper according to claim 1, it is characterized in that described piston (27), (37), (47), (57), (67), (37 '), (47 '), (57 '), (67 '), (37 "); (47 "), (57 "); (67 ") outer wall or axis direction are provided with piston and cross oily passage (27.1), (37.1), (47.1), (57.1), (67.1), (37.1 '), (47.1 '), (57.1 '), (67.1 '), (37.1 "); (47.1 "), (57.1 "); (67.1 "), be provided with towards the end face of valve block and be in-line, the piston end surface groove (27.3) of arc or annular, (37.3), (47.3), (57.3), (67.3), (37.3 '), (47.3 '), (57.3 '), (67.3 '), (37.3 "); (47.3 "), (57.3 "); (67.3 "), cross oily channel connection with piston, constitute the piston complications to small part and cross oily passage; The end that valve block and piston are provided with the piston end surface groove is located by connecting, and is provided with and is communicated with the tortuous valve block of crossing oily passage of piston and crosses the oil circuit footpath; Piston rod and piston towards or dorsad an end of valve block fixedly connected.
5. according to claim 2 or 4 described domestic dampers, the middle part that it is characterized in that described valve block (16), (26) is provided with first flow channels (16.1), (26.1), and valve block is crossed oil circuit and directly comprised and be arranged on second flow channels (16.3), (26.3) that the first flow channels side is other or inside wall is communicated with the piston end surface groove.
6. domestic damper according to claim 1, it is characterized in that described piston (77), (87), (77 '), (87 '), (77 "), (87 ") outer wall or axis direction are provided with piston and cross oily passage (77.1), (87.1), (77.1 '), (87.1 '), (77.1 "), (87.1 "), towards or dorsad an end of valve block (36), (46), (56), (66), (76), (86) fixedly connected with piston rod (10); Valve block and piston are located by connecting, be provided with valve block end face groove (36.4), (46.4), (56.4), (66.4), (76.4), (86.4) of crossing oily channel connection with piston towards piston end face, also be provided with the valve block that is communicated with valve block end face groove on the valve block and cross oily passage (36.1), (36.3), (46.3), (56.3), (66.1), (66.3), (76.1), (86.3), and to the tortuous oily passage excessively of small part formation valve block.
7. according to claim 2 or 4 or 6 described domestic dampers, it is characterized in that described valve block (36), (46), (56), (66), (76), (86) be provided with piston towards piston end face and cross the L-shaped of oily channel connection, arc, annular, the valve block end face groove (36.4) of P shape or in-line, (46.4), (56.4), (66.4), (76.4), (86.4), valve block is crossed oily passage (36.1), (36.3), (46.3), (56.3), (66.1), (66.3), (76.1), (86.3) be arranged on valve block end face periphery and/or middle part, be communicated with valve block end face groove or piston end surface groove.
8. according to claim 2 or 4 or 6 described domestic dampers, it is characterized in that a end that piston that an end of described valve block dorsad is connected with piston rod (10) and valve block join also is provided with groove (37.4 "); slide in the groove and be provided with second valve block (11); the bottom surface is provided with the 3rd flow channels that is communicated with the piston two ends (37.5 "), and second valve block is provided with the 4th flow channels (11.1) with the dislocation of the 3rd flow channels.
9. according to claim 2 or 4 or 6 described domestic dampers, it is characterized in that an end of described valve block dorsad extends more than one location pilum (7.4) with the corresponding valve block of piston that piston rod connects, with valve block location socket; Perhaps, pilum upper end, location is provided with the less last reference column (7.5) of external diameter, with the spacing back-up ring (14) in chute/hole fixedly connected.
10. according to claim 2 or 4 or 6 described domestic dampers, it is characterized in that a described end towards valve block extends more than one location pilum (7.4) with the corresponding valve block of piston that piston rod connects, with valve block location socket; Also be provided with damping fin (5) between valve block outer wall or valve block and the positive stop, the oily passage of mistake of the corresponding valve block of damping fin is provided with through hole; A valve block side of piston dorsad also is provided with positive stop, positive stop be with the spacing back-up ring (14) in chute/hole, pilum upper end, location is provided with the less last reference column (7.5) of external diameter, fixedly connected with spacing back-up ring, perhaps, positive stop be with the spacing snap ring (4) in chute/hole, piston rod (10) correspondence is provided with annular slot, is located by connecting with spacing snap ring.
CN2009200625286U 2009-08-13 2009-08-13 Damper for furniture Expired - Lifetime CN201447992U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103090105A (en) * 2013-01-29 2013-05-08 河海大学常州校区 Valve buffer
CN103104650A (en) * 2011-11-10 2013-05-15 株式会社万都 Shock absorber

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103104650A (en) * 2011-11-10 2013-05-15 株式会社万都 Shock absorber
US9010505B2 (en) 2011-11-10 2015-04-21 Mando Corporation Shock absorber
CN103104650B (en) * 2011-11-10 2015-12-02 株式会社万都 Vibration damper
CN103090105A (en) * 2013-01-29 2013-05-08 河海大学常州校区 Valve buffer
CN103090105B (en) * 2013-01-29 2015-10-28 河海大学常州校区 Valve buffer

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C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Shunde Foshan Huatai Metal Product Co., Ltd.

Assignor: Wu Zhiyong

Contract record no.: 2010440001537

Denomination of utility model: Furniture damper

Granted publication date: 20100505

License type: Exclusive License

Record date: 20101229

AV01 Patent right actively abandoned

Granted publication date: 20100505

Effective date of abandoning: 20090813