CN111236781A - Damper structure for furniture - Google Patents

Damper structure for furniture Download PDF

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Publication number
CN111236781A
CN111236781A CN202010203778.8A CN202010203778A CN111236781A CN 111236781 A CN111236781 A CN 111236781A CN 202010203778 A CN202010203778 A CN 202010203778A CN 111236781 A CN111236781 A CN 111236781A
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CN
China
Prior art keywords
oil passing
piston
cylinder body
groove
piston rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010203778.8A
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Chinese (zh)
Inventor
伍志勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong DTC Hardware Precision Manufacturing Co Ltd
Original Assignee
Guangdong DTC Hardware Precision Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong DTC Hardware Precision Manufacturing Co Ltd filed Critical Guangdong DTC Hardware Precision Manufacturing Co Ltd
Priority to CN202010203778.8A priority Critical patent/CN111236781A/en
Publication of CN111236781A publication Critical patent/CN111236781A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/12—Special devices controlling the circulation of the liquid, e.g. valve arrangement
    • 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
    • E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
    • E05F5/10—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops with piston brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
    • F16F9/3481—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body characterised by shape or construction of throttling passages in piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
    • F16F9/3484—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body characterised by features of the annular discs per se, singularly or in combination
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • F16F9/516—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics resulting in the damping effects during contraction being different from the damping effects during extension, i.e. responsive to the direction of movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2222/00—Special physical effects, e.g. nature of damping effects
    • F16F2222/12—Fluid damping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2224/00—Materials; Material properties
    • F16F2224/04—Fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
    • F16F2228/06—Stiffness
    • F16F2228/066—Variable stiffness
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2238/00—Type of springs or dampers
    • F16F2238/04—Damper

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

The utility model provides a attenuator structure for furniture, has placed the cylinder body of damping oil including piston rod and inside, and the slip is provided with the piston in the cylinder body, and outside piston rod one end stretched out the cylinder body, the other end was connected with the piston cooperation, just slided through the piston and stretches out and draws back on the cylinder body its characterized in that: the piston rod is integrally or separately provided with a hard piece, the hard piece or the piston is provided with a spiral quantitative oil passing groove, an axial oil passing groove is arranged between the piston rod and the piston, and the spiral quantitative oil passing groove is communicated with the axial oil passing groove; the piston and the cylinder body are also provided with an annular soft piece and a reset oil groove, and the annular soft piece is movably arranged between the piston and the cylinder body and is opened or sealed on the reset oil groove during movement. Through the improvement of the structure, the damping device has the characteristics of simple and reasonable structure, excellent performance, convenience in use, low manufacturing cost, easiness in production, easiness in implementation, long service life, wide application range, good damping effect, good sealing performance and the like, and is high in practicability.

Description

Damper structure for furniture
Technical Field
The present invention relates to a damper structure for furniture.
Background
Chinese patent document No. CN102287103A discloses a furniture hinge structure in 2011, 12/21, which includes a hinge cup seat disposed on a furniture door body, a base connected with a furniture main body, and a damper thereof, wherein a bottom plate of the base is provided with a damper, a connecting wing corresponding to the damper is disposed on the bottom plate, the damper is disposed on the connecting wing, a positioning portion is disposed on the connecting wing, the damper is provided with a sleeve in sliding fit therewith, the sleeve is provided with a positioning matching portion corresponding to the positioning portion, or the damper is provided with a positioning matching portion corresponding to the positioning portion. The connecting wing is added on the base of the structure and is connected with the damper or the sleeve thereof through the connecting wing, so that external force generated when the door is closed directly acts on the bottom plate and the furniture main body through the damper, the force is uniform, firm and durable, the connecting wing and the bottom plate on the base are riveted, fastened, fixed, welded and fixed or integrally formed, the manufacturing process can be effectively simplified, and the production cost of products is reduced. However, the damper with the structure is complex in structure and high in material consumption, so that the production cost is high, meanwhile, the damper generates damping force during working or the flow of damping oil inside the damper is unchanged when the damper resets, the use effects of high opening speed and low closing speed of the furniture hinge cannot be realized, and the use experience of a user is influenced. Therefore, further improvements are necessary.
Disclosure of Invention
The invention aims to provide a damper structure for furniture, which has the advantages of simple and reasonable structure, excellent performance, convenient use, low manufacturing cost, easy production, easy realization, long service life, wide application range, good damping effect and good sealing performance, and overcomes the defects in the prior art.
A attenuator structure for furniture according to this purpose design, including piston rod and the inside cylinder body of placing damping oil, the slip is provided with the piston in the cylinder body, outside piston rod one end stretched out the cylinder body, the other end was connected with the piston cooperation, just slided through the piston and stretches out and draws back on the cylinder body its characterized in that: the piston rod is integrally or separately provided with a hard piece, the hard piece or the piston is provided with a spiral quantitative oil passing groove, an axial oil passing groove is arranged between the piston rod and the piston, and the spiral quantitative oil passing groove is communicated with the axial oil passing groove; the piston and the cylinder body are also provided with an annular soft piece and a reset oil groove, and the annular soft piece is movably arranged between the piston and the cylinder body and is opened or sealed on the reset oil groove during movement.
The oil passing amount of the axial oil passing groove is larger than that of the spiral quantitative oil passing groove.
The hard piece is annular and at least covers the spiral quantitative oil passing groove; the spiral quantitative oil passing groove is further provided with an oil passing port, and the oil passing port is located on the outer side of the diameter of the hard piece and communicated with the spiral quantitative oil passing groove.
One side face of the piston is provided with an annular preset part, the spiral quantitative oil passing groove is spirally arranged on the annular preset part, one end of the spiral quantitative oil passing groove is communicated with the axial oil passing groove, and the other end of the spiral quantitative oil passing groove is provided with an oil passing port; the hard piece is pre-positioned on the annular pre-determined part and covers the spiral quantitative oil passing groove and the axial oil passing groove.
One end of the piston rod extends out of the cylinder body, and the other end of the piston rod at least clings to the spiral quantitative oil passing groove and the axial oil passing groove through the hard piece when sliding towards the direction of the cylinder body; the annular soft part is sealed on the oil groove when the piston rod slides towards the cylinder body, and damping oil flows to the other side of the piston from one side of the piston through the oil groove in the axial direction, the oil groove in the spiral quantitative direction and the oil passing opening in sequence so as to realize the buffer damping of the damper.
An axial gap is formed in the piston; the piston rod or the hard piece is provided with an inserting part and is inserted on the axial gap through the inserting part; the axial oil passing groove is formed between the axial gap and the inserting part.
The plug-in connection part is integrally arranged on the piston rod, the diameter of the plug-in connection part is smaller than that of the piston rod, the hard part and the piston rod are arranged in a split mode, a connection part is arranged on the hard part, the piston rod acts on the hard part and tightly adheres to and acts on the spiral quantitative oil passing groove and the axial oil passing groove when sliding at least towards the direction of the cylinder body, and the piston rod acts on the connection part through the plug-in connection part and is inserted into the axial gap.
Or the insertion part, the piston rod and the hard piece are integrally formed, the diameter of the insertion part is smaller than that of the hard piece, and the piston rod at least tightly adheres to the spiral quantitative oil passing groove and the axial oil passing groove through the hard piece when sliding towards the cylinder body direction and is inserted in the axial gap through the insertion part.
Or the insertion part is integrally arranged on the hard piece, the diameter of the insertion part is smaller than that of the hard piece, the hard piece and the piston rod are arranged in a split mode, the hard piece is provided with an assembly part, the piston rod is arranged on the assembly part and at least tightly attached to the spiral quantitative oil passing groove and the axial oil passing groove through the hard piece when sliding towards the cylinder body direction, and the hard piece is inserted into the axial gap through the insertion part.
A plurality of gaps are arranged on the periphery of the piston; the reset oil passing groove is formed between the plurality of gaps and the inner wall of the cylinder body; the other side face of the piston is integrally formed or is separately provided with an oil passing part, an oil passing part is arranged on the oil passing part or between the oil passing part and the inner wall of the cylinder body, a movable groove is arranged between the piston and the oil passing part, and the annular soft part is movably arranged on the movable groove.
When the piston rod slides towards the outside direction of the cylinder body, the annular soft piece moves on the movable groove and opens the reset oil groove when moving, damping oil sequentially passes through the oil port, the spiral quantitative oil groove, the axial oil groove and the reset oil groove, the movable groove and the oil part from the other side of the piston to flow to one side of the piston, so that the damper is reset quickly.
One end of the cylinder body is sealed, the other end of the cylinder body is provided with an opening part, an end cover is arranged on the opening part, and the end cover is positioned on the opening part; the Y-shaped elastic piece is arranged in the cylinder body, the periphery of the Y-shaped elastic piece is hermetically acted on the inner wall of the cylinder body, the middle of the Y-shaped elastic piece is hermetically connected with the piston rod, and the front end of the Y-shaped elastic piece is also provided with at least one elastic part which is elastically acted on the end cover through the elastic part when the piston rod slides and stretches.
A clamping piece is fixedly arranged in the cylinder body; one end of the piston rod extends out of the cylinder body, and the other end of the piston rod penetrates through the end cover, the Y-shaped elastic piece, the clamping piece and the hard piece in sequence and then is connected with the piston in a matching mode; a spring is arranged between the piston and the cylinder body, and the piston elastically slides in the cylinder body through the spring.
According to the invention, through the improvement of the structure, the hard piece is integrally formed or separately arranged on the piston rod, the spiral quantitative oil passing groove is arranged on the hard piece or the piston, the oil passing hole is also arranged on the spiral quantitative oil passing groove, the axial oil passing groove is arranged between the piston rod and the piston, the spiral quantitative oil passing groove is communicated with the axial oil passing groove, and the annular soft piece and the reset oil passing groove are also arranged between the piston and the cylinder body.
When the piston rod slides towards the cylinder body, the annular soft part is sealed on the reset oil passing groove, meanwhile, the hard part can be tightly attached to the spiral quantitative oil passing groove and the axial oil passing groove, damping oil on one side of the piston can only flow to the other side of the piston through the axial oil passing groove, the spiral quantitative oil passing groove and the oil passing opening in sequence, and the damping oil can only flow through one channel in the whole process, so that the piston rod can only slowly slide towards the cylinder body, and the slow buffering damping of the damper is realized. And the oil passing amount of the axial oil passing groove is larger than that of the spiral quantitative oil passing groove, the damper is fast in buffering damping at the initial stage when in work and slow in buffering damping at the later stage, so that the damper generates variable damping force, different damping force can be generated according to flowing force of the damping oil, namely closing force of furniture, the application range of the damper is effectively enlarged, and collision-free damping closing of the furniture product can be really realized no matter the furniture product is heavy in self weight or the closing force of a user is large.
When the piston rod slided towards cylinder body outside direction, the oil groove of reseing can be opened to the soft piece of annular, the damping oil that is in the piston opposite side passes through the hydraulic fluid port in proper order, the oil groove is crossed to the spiral ration, the oil groove is crossed to the axial, and reseed the oil groove, the piston with cross the activity groove between the oil piece, cross on the oil piece or cross the oil portion of crossing between oil piece and the cylinder body inner wall and flow to one side of piston, whole in-process damping oil can flow at a plurality of passageways, consequently the piston rod can be quick slides towards cylinder body outside direction, thereby realize the quick reset of attenuator, the speed when opening of furniture product promptly can be than when closing fast, and speed when opening backward more is fast, experience in order to improve user's use.
Moreover, the hard piece can be pre-positioned on the annular pre-positioning part during assembly, so that the assembly efficiency and stability of the hard piece can be improved; the end cover can be disassembled on the cylinder body, so that dust can not enter the cylinder body, the daily maintenance of a user is facilitated, and the service life of the damper is prolonged; the Y-shaped elastic piece is arranged in the cylinder body, the periphery of the Y-shaped elastic piece is sealed on the inner wall of the cylinder body, the middle of the Y-shaped elastic piece is connected with the piston rod in a sealing mode, the sealing effect of the damper can be improved, the Y-shaped elastic piece can elastically act on the end cover when the piston rod slides and stretches out and draws back, the pressure inside and outside the cylinder body can be effectively balanced, all components inside the cylinder body are enabled to be uniformly stressed in the working process, the cylinder body is prevented from bursting, the overall bearing capacity of the damper is improved, the service life of the damper is prolonged, the damper is enabled to.
In summary, the damper has the characteristics of simple and reasonable structure, excellent performance, convenience in use, low manufacturing cost, easiness in production, easiness in implementation, long service life, wide application range, good damping effect, good sealing performance and the like, and is high in practicability.
Drawings
Fig. 1 and 2 are schematic exploded structural views of a first embodiment of the present invention.
Fig. 3 is a schematic view of an assembly structure of the first embodiment of the present invention.
Fig. 4 is a schematic structural view (cross-sectional view) of the closed state of the first embodiment of the present invention.
Fig. 5 is a schematic structural view (cross-sectional view) of the first embodiment of the present invention in an open state.
Fig. 6 is an exploded view of the piston rod, the hard member and the cylinder according to the first embodiment of the present invention.
Fig. 7 is a schematic view of an assembly structure of the piston rod, the hard member and the cylinder body according to the first embodiment of the present invention.
Fig. 8 and 9 are schematic exploded structural views of a second embodiment of the present invention.
Fig. 10 is a schematic view (in cross section) of an assembly structure of the second embodiment of the present invention.
Fig. 11 and 12 are schematic exploded structural views of a third embodiment of the present invention.
Fig. 13 is a schematic view (in cross section) of an assembly structure of the third embodiment of the present invention.
Fig. 14 and 15 are schematic exploded structural views of a fourth embodiment of the present invention.
Fig. 16 is a schematic view (in cross section) of an assembly structure of the fourth embodiment of the present invention.
Detailed Description
The invention is further described with reference to the following figures and examples.
First embodiment
Referring to fig. 1-7, the damper structure for furniture comprises a piston rod 1 and a cylinder body 2 with damping oil placed inside, wherein a piston 3 is arranged in the cylinder body 2 in a sliding manner, one end of the piston rod 1 extends out of the cylinder body 2, the other end of the piston rod 1 is connected with the piston 3 in a matching manner and is arranged on the cylinder body 2 in a sliding and stretching manner through the piston 3, a hard piece 4 is integrally formed or separately arranged on the piston rod 1, a spiral quantitative oil passing groove 5 is arranged on the hard piece 4 or the piston 3, an axial oil passing groove 6 is arranged between the piston rod 1 and the piston 3, and the spiral quantitative oil passing groove 5 is communicated with the; and an annular soft piece 8 and a reset oil passing groove 7 are also arranged between the piston 3 and the cylinder body 2, and the annular soft piece 8 is movably arranged between the piston 3 and the cylinder body 2 and is opened or sealed on the reset oil passing groove 7 during movement.
Wherein the spiral quantitative oil-passing groove 5 is formed by a plurality of zigzag lines and/or arcs.
The oil passing amount of the axial oil passing groove 6 is larger than that of the spiral quantitative oil passing groove 5.
The hard piece 4 is annular and at least covers the spiral quantitative oil passing groove 5; the spiral quantitative oil passing groove 5 is further provided with an oil passing hole 9, and the oil passing hole 9 is located on the outer side of the diameter of the hard piece 4 and is communicated with the spiral quantitative oil passing groove 5.
An annular preset part 10 is arranged on one side surface of the piston 3, the spiral quantitative oil passing groove 5 is spirally arranged on the annular preset part 10, one end of the spiral quantitative oil passing groove is communicated with the axial oil passing groove 6, and an oil passing port 9 is arranged at the other end of the spiral quantitative oil passing groove; the hard piece 4 is pre-positioned on the annular pre-determined part 10 and covers the spiral quantitative oil passing groove 5 and the axial oil passing groove 6.
One end of the piston rod 1 extends out of the cylinder body 2, and the other end of the piston rod clings to the spiral quantitative oil passing groove 5 and the axial oil passing groove 6 through the hard piece 4 when sliding towards the cylinder body 2; the annular soft part 8 is sealed on the oil groove 7 that returns when the piston rod 1 slides towards the cylinder body 2 at least, damping oil flows to the other side of the piston 3 from one side of the piston 3 through the axial oil groove 6, the spiral quantitative oil groove 5 and the oil hole 9 in sequence, so as to realize the buffer damping of the damper.
A plurality of gaps 15 are arranged on the periphery of the piston 3; the reset oil passing groove 7 is formed between the plurality of gaps 15 and the inner wall of the cylinder body 2; the other side surface of the piston 3 is integrally formed with an oil passing part 16, an oil passing part 17 is arranged between the oil passing part 16 and the inner wall of the cylinder body 2, a movable groove 18 is arranged between the piston 3 and the oil passing part 16, and the annular soft part 8 is movably arranged on the movable groove 18.
When the piston rod 1 slides towards the outside direction of the cylinder body 2, the annular soft piece 8 moves on the movable groove 18 and opens the reset oil passing groove 7 during moving, damping oil sequentially passes through the oil port 9, the spiral quantitative oil passing groove 5, the axial oil passing groove 6, the reset oil passing groove 7, the movable groove 18 and the oil passing part 17 from the other side of the piston 3 to flow to one side of the piston 3, so that the damper is reset rapidly.
Referring to fig. 4, the piston rod 1 slides towards the cylinder 2 and applies a force of F1, the damper compresses leftwards, and simultaneously, due to the action of the damping oil, the annular soft member 8 moves rightwards on the movable groove 18 and is sealed on the reset oil passing groove 7, and simultaneously, the hard member 4 also tightly adheres to the spiral quantitative oil passing groove 5 and the axial oil passing groove 6, the damping oil on one side of the piston 3 can only flow to the other side of the piston 3 sequentially through the axial oil passing groove 6, the spiral quantitative oil passing groove 5 and the oil passing port 9, and the damping oil can only flow through one channel in the whole process, so the piston rod 1 can only slide slowly towards the cylinder 2, and the slow buffer damping of the damper is realized.
Referring to fig. 5, the piston rod 1 slides towards the outside of the cylinder 2 and applies F2 force, the damper resets right, and simultaneously, due to the action of the damping oil, the annular soft part 8 moves leftwards on the movable groove 18 and opens the reset oil groove 7, the damping oil on the other side of the piston 3 sequentially passes through the oil port 9, the spiral quantitative oil groove 5, the axial oil groove 6, the reset oil groove 7, the movable groove 18 and the oil passing part 17 to flow to one side of the piston 3, and the damping oil can flow through a plurality of channels in the whole process, so the piston rod 1 can slide towards the outside of the cylinder 2 quickly, and the damper resets quickly.
As can be seen from fig. 4 and 5, the damping oil passing channel when the damper is reset is more than the damping oil passing channel when the damping is buffered, and the oil passing amount of the axial oil passing groove is greater than the oil passing amount of the spiral quantitative oil passing groove, so that the damper can achieve the effects that the resetting speed is gradually increased and the speed is gradually reduced when the damping works.
An axial gap 11 is arranged on the piston 3; the piston rod 1 or the hard piece 4 is provided with an inserting part 12 and is inserted on the axial gap 11 through the inserting part 12; the axial oil passing groove 6 is formed between the axial gap 11 and the insertion part 12.
The plug-in part 12 is integrally arranged on the piston rod 1, the diameter of the plug-in part 12 is smaller than that of the piston rod 1, the hard piece 4 and the piston rod 1 are arranged in a split mode, a connecting part 13 is arranged on the hard piece 4, the piston rod 1 acts on the hard piece 4 and at least tightly acts on the spiral quantitative oil passing groove 5 and the axial oil passing groove 6 through the hard piece 4 when sliding towards the direction of the cylinder body 2, and the piston rod 1 acts on the connecting part 13 through the plug-in part 12 and is plugged in the axial gap 11.
One end of the cylinder body 2 is sealed, the other end of the cylinder body is provided with an opening part 19, an end cover 20 is arranged on the opening part 19, and the end cover 20 is positioned on the opening part 19; the cylinder body 2 is internally provided with a Y-shaped elastic part 21, the periphery of the Y-shaped elastic part 21 is hermetically acted on the inner wall of the cylinder body 2, the middle part of the Y-shaped elastic part 21 is hermetically connected with the piston rod 1, the front end of the Y-shaped elastic part 21 is also provided with at least one elastic part 22, and the elastic part 22 elastically acts on the end cover 20 when the piston rod 1 slides and stretches.
A clamping piece 23 is also fixedly arranged in the cylinder body 2; one end of the piston rod 1 extends out of the cylinder body 2, and the other end of the piston rod passes through the end cover 20, the Y-shaped elastic part 21, the clamping piece 23 and the hard part 4 in sequence and then is connected with the piston 3 in a matching way; a spring 24 is further arranged between the piston 3 and the cylinder 2, and the piston 3 elastically slides in the cylinder 2 through the spring 24.
Second embodiment
Referring to fig. 8 to 10, the present damper structure for furniture differs from the first embodiment in that: the insertion part 12, the piston rod 1 and the hard piece 4 are integrally formed, the diameter of the insertion part 12 is smaller than that of the hard piece 4, when the piston rod 1 slides at least towards the cylinder body 2, the hard piece 4 is tightly attached to the spiral quantitative oil passing groove 5 and the axial oil passing groove 6, and the insertion part 12 is inserted into the axial gap 11.
The other parts not described are the same as those of the first embodiment.
Third embodiment
Referring to fig. 11 to 13, the present damper structure for furniture is different from the first embodiment in that: the insertion part 12 is integrally arranged on the hard part 4, the diameter of the insertion part is smaller than that of the hard part 4, the hard part 4 and the piston rod 1 are arranged in a split mode, the hard part 4 is provided with an assembly part 14, the piston rod 1 is arranged on the assembly part 14, and at least tightly adheres to the spiral quantitative oil passing groove 5 and the axial oil passing groove 6 through the hard part 4 when sliding towards the direction of the cylinder body 2, and the hard part 4 is inserted in the axial gap 11 through the insertion part 12.
The other parts not described are the same as those of the first embodiment.
Fourth embodiment
Referring to fig. 14 to 16, the present damper structure for furniture is different from the first embodiment in that: the other side surface of the piston 3 is separately provided with an oil passing piece 16, and the oil passing piece 16 is provided with an oil passing part 17.
The end cap 20 is provided with a plurality of openings, and the Y-shaped elastic member 21 is positioned and sealed on the openings by the elastic part 22.
The other parts not described are the same as those of the first embodiment.
The drawings are for illustrative purposes only and are presented in the form of illustrations only, not illustrations as physical or logical, and should not be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Moreover, like or similar reference numerals in the drawings of the embodiments of the present invention correspond to like or similar components; in the description of the present invention, it should be understood that, if there are any terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "lateral", "longitudinal", "top", "bottom", "inner", "outer", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the description is for convenience only and to simplify the description, but it is not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the terms describing the positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

Claims (10)

1. The utility model provides a attenuator structure for furniture, has placed cylinder body (2) of damping oil including piston rod (1) and inside, and it is provided with piston (3) to slide in cylinder body (2), and outside cylinder body (2) were stretched out to piston rod (1) one end, the other end was connected with piston (3) cooperation, just slided through piston (3) and stretches out and draws back on cylinder body (2), its characterized in that: the piston rod (1) is integrally or separately provided with a hard piece (4), the hard piece (4) or the piston (3) is provided with a spiral quantitative oil passing groove (5), an axial oil passing groove (6) is arranged between the piston rod (1) and the piston (3), and the spiral quantitative oil passing groove (5) is communicated with the axial oil passing groove (6); the oil cylinder is characterized in that an annular soft piece (8) and an oil return groove (7) are further arranged between the piston (3) and the cylinder body (2), and the annular soft piece (8) is movably arranged between the piston (3) and the cylinder body (2) and is opened or sealed on the oil return groove (7) during movement.
2. The damper structure for furniture according to claim 1, wherein: the oil passing amount of the axial oil passing groove (6) is larger than that of the spiral quantitative oil passing groove (5).
3. The damper structure for furniture according to claim 2, wherein: the hard piece (4) is annular and at least covers the spiral quantitative oil passing groove (5); the spiral quantitative oil passing groove (5) is further provided with an oil passing opening (9), and the oil passing opening (9) is located on the outer side of the diameter of the hard piece (4) and is communicated with the spiral quantitative oil passing groove (5).
4. A damper structure for furniture according to claim 3, wherein: an annular presetting part (10) is arranged on one side face of the piston (3), a spiral quantitative oil passing groove (5) is spirally arranged on the annular presetting part (10), one end of the spiral quantitative oil passing groove is communicated with the axial oil passing groove (6), and an oil passing port (9) is arranged at the other end of the spiral quantitative oil passing groove; the hard piece (4) is prepositioned on the annular presetting part (10) and covers the spiral quantitative oil passing groove (5) and the axial oil passing groove (6).
5. The damper structure for furniture according to claim 4, wherein: one end of the piston rod (1) extends out of the cylinder body (2), and the other end of the piston rod at least clings to the spiral quantitative oil passing groove (5) and the axial oil passing groove (6) through the hard piece (4) when sliding towards the direction of the cylinder body (2); annular soft spare (8) at least when piston rod (1) slide towards cylinder body (2) direction sealed on oil groove (7) are crossed in reseing, damping oil crosses oil groove (6), spiral ration from one side of piston (3) in proper order through the axial, crosses oil groove (5), crosses the opposite side that oil mouth (9) flowed to piston (3) to realize the buffering damping of attenuator.
6. The damper structure for furniture according to claim 5, wherein: an axial gap (11) is formed in the piston (3); the piston rod (1) or the hard piece (4) is provided with an insertion part (12) and is inserted in the axial gap (11) through the insertion part (12); the axial oil passing groove (6) is formed between the axial notch (11) and the insertion part (12).
7. The damper structure for furniture according to claim 6, wherein: the insertion part (12) is integrally arranged on the piston rod (1), the diameter of the insertion part is smaller than that of the piston rod (1), the hard piece (4) and the piston rod (1) are arranged in a split mode, a connecting part (13) is arranged on the hard piece (4), the piston rod (1) acts on the hard piece (4) and at least tightly adheres to the spiral quantitative oil passing groove (5) and the axial oil passing groove (6) through the hard piece (4) when sliding towards the direction of the cylinder body (2), and the piston rod (1) acts on the connecting part (13) through the insertion part (12) and is inserted into the axial gap (11);
or the insertion part (12), the piston rod (1) and the hard piece (4) are integrally formed, the diameter of the insertion part (12) is smaller than that of the hard piece (4), and when the piston rod (1) slides at least towards the cylinder body (2), the hard piece (4) is tightly attached to the spiral quantitative oil passing groove (5) and the axial oil passing groove (6) and is inserted into the axial gap (11) through the insertion part (12);
or the inserting part (12) is integrally arranged on the hard piece (4) and the diameter of the inserting part is smaller than that of the hard piece (4), the hard piece (4) and the piston rod (1) are arranged in a split mode, wherein the hard piece (4) is provided with the assembling part (14), the piston rod (1) is arranged on the assembling part (14) and tightly attached to the spiral quantitative oil passing groove (5) and the axial oil passing groove (6) through the hard piece (4) at least when sliding towards the direction of the cylinder body (2), and the hard piece (4) is inserted into the axial gap (11) through the inserting part (12).
8. The damper structure for furniture according to claim 5, wherein: a plurality of gaps (15) are formed in the periphery of the piston (3); the reset oil passing groove (7) is formed between the plurality of gaps (15) and the inner wall of the cylinder body (2); an oil passing part (16) is integrally formed or separately arranged on the other side surface of the piston (3), an oil passing part (17) is arranged on the oil passing part (16) or between the oil passing part (16) and the inner wall of the cylinder body (2), a movable groove (18) is arranged between the piston (3) and the oil passing part (16), and the annular soft part (8) is movably arranged on the movable groove (18);
when piston rod (1) slided towards cylinder body (2) outside direction, annular soft spare (8) moved on activity groove (18), and opened when moving and reset oil groove (7), damping oil crosses oil groove (5), axial oil groove (6) and resets oil groove (7), activity groove (18), crosses one side that oil portion (17) flowed to piston (3) from the opposite side of piston (3) through hydraulic fluid port (9) in proper order, spiral ration to realize the quick reset of attenuator.
9. Damper structure for furniture according to any of claims 1-8, characterized in that: one end of the cylinder body (2) is sealed, the other end of the cylinder body is provided with an opening part (19), an end cover (20) is arranged on the opening part (19), and the end cover (20) is positioned on the opening part (19); the cylinder body (2) is internally provided with a Y-shaped elastic piece (21), the periphery of the Y-shaped elastic piece (21) is hermetically acted on the inner wall of the cylinder body (2), the middle part of the Y-shaped elastic piece is hermetically connected with the piston rod (1), the front end of the Y-shaped elastic piece (21) is also provided with at least one elastic part (22), and the elastic part (22) elastically acts on the end cover (20) when the piston rod (1) slides and stretches.
10. The damper structure for furniture according to claim 9, wherein: a clamping piece (23) is also fixedly arranged in the cylinder body (2); one end of the piston rod (1) extends out of the cylinder body (2), and the other end of the piston rod penetrates through the end cover (20), the Y-shaped elastic piece (21), the clamping piece (23) and the hard piece (4) in sequence and then is connected with the piston (3) in a matching way; a spring (24) is also arranged between the piston (3) and the cylinder body (2), and the piston (3) elastically slides in the cylinder body (2) through the spring (24).
CN202010203778.8A 2020-03-20 2020-03-20 Damper structure for furniture Pending CN111236781A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010203778.8A CN111236781A (en) 2020-03-20 2020-03-20 Damper structure for furniture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010203778.8A CN111236781A (en) 2020-03-20 2020-03-20 Damper structure for furniture

Publications (1)

Publication Number Publication Date
CN111236781A true CN111236781A (en) 2020-06-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010203778.8A Pending CN111236781A (en) 2020-03-20 2020-03-20 Damper structure for furniture

Country Status (1)

Country Link
CN (1) CN111236781A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111623070A (en) * 2020-06-29 2020-09-04 赣州禾盈通用零部件有限公司 Small-size big resistance buffer
WO2023019281A3 (en) * 2021-08-20 2023-04-13 Julius Blum Gmbh Damper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111623070A (en) * 2020-06-29 2020-09-04 赣州禾盈通用零部件有限公司 Small-size big resistance buffer
WO2023019281A3 (en) * 2021-08-20 2023-04-13 Julius Blum Gmbh Damper

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