CN104653686B - Buffer with controllable buffering force - Google Patents
Buffer with controllable buffering force Download PDFInfo
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- CN104653686B CN104653686B CN201510064714.3A CN201510064714A CN104653686B CN 104653686 B CN104653686 B CN 104653686B CN 201510064714 A CN201510064714 A CN 201510064714A CN 104653686 B CN104653686 B CN 104653686B
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- oil groove
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- cannelure
- oil
- cylinder body
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- 230000003139 buffering effect Effects 0.000 title claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 230000000694 effects Effects 0.000 claims description 34
- 239000004033 plastic Substances 0.000 claims description 12
- 229920003023 plastic Polymers 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000013536 elastomeric material Substances 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 3
- 238000010923 batch production Methods 0.000 abstract description 2
- 238000013016 damping Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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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
- 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
- E05F5/006—Braking devices, e.g. checks; Stops; Buffers for hinges having a cup-shaped fixing part, e.g. for attachment to cabinets or furniture
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
The invention relates to a buffer with controllable buffering force. The buffer comprises a piston rod, a piston, a cylinder body and a buffering liquid oil, wherein the buffering liquid oil is filled into the cylinder body, one end of the piston rod is connected with the piston, the other end of the piston rod extends out of the cylinder body, an annular groove is formed in the piston, an oil through groove and/or an oil through notch is formed in the end part of the annular groove, a sealing element movably sleeves the end part of the annular groove, a quantitative oil through groove is formed in the middle part of the piston, and is independent from the annular groove without interference, and the buffer is used for controlling the buffering force in the working process through the matching of the oil through groove and the annular groove. By improving the structure, the buffer has the characteristics that the structure is simple and reasonable, the assembly is simple, the property is reliable, the sealing property is good, the cost is low, the batch production is easy, the finished rate is high, the buffering force is uniform, and the practicality is high.
Description
Technical field
The present invention relates to a kind of buffer of controllable cushion effect.
Background technology
Chinese patent literature number discloses a kind of domestic damper for cn201133439y on October 15th, 2008, tool
Body includes the piston rod being arranged in cylinder body, and piston rod one end is connected with piston, and middle part is connected with sealing member, and antivibrator also includes
It is arranged on the damping fin in cylinder body and banking stop, piston, damping fin and banking stop connect successively, and cylinder body is stretched in piston rod one end
Interior, through after banking stop and damping fin, connect with piston, outside piston, be provided with one and above axial gap, damping fin
Banking stop side is provided with circular step, banking stop is provided with positioning short column towards damping fin side, piston, damping fin and
Keep certain oil-gap excessively between banking stop and inboard wall of cylinder block, piston is provided with one and above positioning pilum, positioning
The less upper locating dowel of external diameter is provided with pilum.Piston in this structure, due to being difficult to ensure that the standard that system is appointed, leads to it
Oil sealing effect and cylinder body between is poor, thus lead to buffer cushion effect uneven it is impossible to reach the effect of at the uniform velocity opening and closing, because
This is it is necessary to be further improved.
Content of the invention
The purpose of the present invention aims to provide a kind of simple and reasonable, and assembling is simple, dependable performance, good airproof performance, cost
It is low that it is easy to batch production, high yield rate, cushion effect is consistent, can according to user require to determine at any time buffer buffer requirements can
Control the buffer of cushion effect, to overcome weak point of the prior art.
By the buffer of a kind of controllable cushion effect of this purpose design, including piston rod, piston, cylinder body and be filled in
The buffering liquid oil of cylinder interior, one end of piston rod connects with piston, the other end stretch out cylinder body outward it is characterised in that: piston
On be provided with cannelure, the end of cannelure was provided with oil groove and/or excessively oily breach and movable sleeve is provided with potted component, lives
The middle part of plug be additionally provided with quantitative cross oil groove, quantitative oil groove of crossing is relatively independent with cannelure and do not interfere with each other, and buffer passes through to determine
Measured the cushion effect cooperating when controlling work of oil groove and cannelure.
Described cannelure concave is arranged on the outer surface of piston, and potted component is made up of plastics or elastomeric material and outer
Footpath size is suitable with the inner wall size of cylinder body, and movably spacing be set on cannelure, potted component cannelure move
Blockaded during to an at least spacing direction passage of oil groove and/or excessively oily breach；It is at least axial, bent that the middle part of piston is provided with
The quantitation of folding crosses oil groove, quantitative cross oil groove and cannelure independently on piston.
When described piston rod is fixedly installed on piston and a direction is mobile thereto, potted component is to the ring of piston
The spacing direction of shape groove wherein is moved, and the clearance channel being formed between oil groove and/or excessively oily breach and cylinder body of substantially blockading,
Buffering liquid oil crosses oil groove flowing through quantitative, crosses oil mass and diminishes, buffer compresses and produces cushion effect；Piston rod is round about
When mobile, potted component moves to another spacing direction of cannelure of piston, crosses shape between oil groove and/or excessively oily breach and cylinder body
The clearance channel of one-tenth and quantitative oil groove of crossing are interconnected, and buffering liquid oil is excessively oily through oil groove and/or excessively oily breach, quantitation
Groove flows, and crosses oil mass and becomes big, buffer resets；Buffer passes through to control buffering liquid oil stream through the flow of oil groove, cannelure
Size realizes the control of cushion effect.
The cross section of described cannelure is in u-shaped, V-shaped or y type, potted component is movably spacing to be set on cannelure,
And movement spacing when act on cannelure side wall on；Described quantitation cross oil groove by axially cross oil groove, radially cross oil groove and/
Or through hole composition, one end of piston rod acts on the quantitative end crossing oil groove and the quantitative excessively oily passage of formation therebetween, to limit
Determine the flow of buffering liquid oil, quantitatively oil groove is relatively independent with cannelure excessively and does not interfere with each other.
Described piston is wholely set molding by plastics or elastomeric material, and piston rod is made up of metal material and one end and work
Plug is fixedly connected, and and axially crosses oil groove, radially crosses the quantitative excessively oily passage of formation between oil groove and/or through hole, to limit buffering
The flow of liquid oil, the other end of piston rod stretches out outside cylinder body；Potted component is by the plastics with flexible or plasticity or rubber material
Material is made, and movably spacing is set on cannelure.
The middle part of described piston is provided with functional hole, and quantitative oil groove of crossing is arranged on functional hole, and quantitative oil groove of crossing is by axial direction
Cross oil groove, radially cross oil groove and through hole composition, wherein axially cross the side wall that oil groove is arranged on functional hole, radially cross oil groove and be arranged on
The bottom of functional hole, through hole is crossed oil groove with radial direction and is connected, and one end of piston rod is fixedly installed on functional hole, and excessively oily with axial direction
Groove, radial direction are crossed and are formed quantitative excessively oily passage between oil groove and through hole, and the other end of piston rod stretches out outside cylinder body；Cannelure transversal
Face is in u-shaped, and its side wall one end was provided with oil groove, and the other end was provided with oily breach, and the bottom of cannelure corresponded to oil groove also
It is provided with diversion division；Described potted component is for O-ring seal and by the plastics with flexible or plasticity or elastomeric material system
Become, and movably spacing be set on cannelure.
Described buffer also includes end cap, the first elastic component, baffle plate and sealing member, described end cap, the first elastic component, gear
Plate and sealing member are sequentially sleeved on piston rod.
Described end cap is fixedly installed on the opening of cylinder body；Baffle plate setting is in the front end of sealing member；First elastic component is bullet
Spring and being placed between end cap and baffle plate, on end cap, other end elastic reaction, on baffle plate, makes sealing to its one end elastic reaction
Part reset movement.
The rear end of described sealing member also sets up banking stop, and banking stop is fixedly installed on the inwall of cylinder body and arranges thereon
Several are had to supply the breach that buffering liquid oil passes through；When buffer resets, the end position-limiting action of piston is on banking stop；Described
Sealing member be that the inwall of y type sealing ring and the surface to piston rod and cylinder body respectively seals.
It is additionally provided with the second elastic component, the second elastic component is spring and is arranged between piston and cylinder body in described cylinder body,
Its one end elastic reaction provides elasticity in the end of piston, other end elastic reaction in the inner bottom part of cylinder body, the reset for piston
Active force.
The improvement by said structure for the present invention, is provided with cannelure on piston, and the end of cannelure was provided with oil
Groove and/or excessively oily breach and movable sleeve are provided with potted component, and the middle part of piston is additionally provided with quantitation and crosses oil groove, and quantitation crosses oil groove
Relatively independent with cannelure and do not interfere with each other.During use, move thereto by a direction for piston rod, and potted component is to piston
The spacing direction of cannelure wherein is moved, and the gap being formed between oil groove and/or excessively oily breach and cylinder body of substantially blockading leads to
Road, now, buffering liquid oil can only cross oil groove flowing from quantitative, because the mistake oil mass in the unit interval diminishes, so that buffer is produced
The larger cushion effect of life, buffer compresses and produces cushion effect；When piston rod moves round about, potted component is to piston
Another spacing direction of cannelure is moved, and crosses the clearance channel being formed between oil groove and/or excessively oily breach and cylinder body and quantitative mistake
Oil groove is interconnected, now, buffering liquid oil can from cross oil groove and/or excessively oily breach, quantitative cross oil groove flowing, during due to unit
Interior mistake oil mass increases, and the cushion effect that buffer produces reduces, and buffer resets rapidly, and buffer passes through to control buffering liquid
Oil stream realizes the control of cushion effect through the uninterrupted of oil groove, cannelure；Efficiently solve the buffer envelope of prior art
Oily effect is poor, the problems such as opening and closing speed is uneven, and can determine the buffering effect of buffer at any time according to the requirement of user, side
Just the use of user.It has simple and reasonable, and assembling is simple, dependable performance, good airproof performance, and low cost is it is easy to batch is raw
Produce, high yield rate, the features such as cushion effect is consistent, practical.
Brief description
Fig. 1 is the decomposition texture schematic diagram of first embodiment of the invention.
Fig. 2 is the assembling structure schematic diagram of first embodiment of the invention.
Fig. 3 is sectional view during the reset of first embodiment of the invention.
Fig. 4 is sectional view during the compression of first embodiment of the invention.
Fig. 5, Fig. 6 are the piston structure schematic diagram of first embodiment of the invention.
Fig. 7 is first embodiment of the invention and piston cross section structure diagram.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
Referring to Fig. 1-Fig. 7, the buffer of this controllable cushion effect, including piston rod 1, piston 8, cylinder body 10 and be filled in
Buffering liquid oil within cylinder body 10, one end of piston rod 1 is connected with piston 8, and the other end stretches out outside cylinder body 10, and piston 8 sets
It is equipped with cannelure 8.1, the end of cannelure 8.1 was provided with oil groove 8.3 and/or excessively oily breach 8.4 and movable sleeve is provided with sealing
Element 7, the middle part of piston 8 is additionally provided with quantitation and crosses oil groove 8.5, and it is relatively independent with cannelure 8.1 and mutual that quantitation crosses oil groove 8.5
Do not disturb, buffer passes through the quantitative cushion effect cooperating when controlling work crossing oil groove 8.5 and cannelure 8.1.
Cannelure 8.1 concave is arranged on the outer surface of piston 8, and potted component 7 is made up of plastics or elastomeric material and outer
Footpath size is suitable with the inner wall size of cylinder body 10, and movably spacing be set on cannelure 8.1, potted component 7 is in annular
Groove 8.1 was blockaded when moving to an at least spacing direction passage of oil groove 8.3 and/or excessively oily breach 8.4；The middle part of piston 8 sets
Be equipped be at least axially, tortuous quantitation cross oil groove 8.5, quantitative cross oil groove 8.5 and cannelure 8.1 independently in piston 8
On.
Specifically, piston rod 1 is fixedly installed on piston 8 and when direction is mobile thereto, potted component 7 to
The spacing direction of cannelure 8.1 wherein of piston 8 is moved, and substantially blockaded oil groove 8.3 and/or excessively oily breach 8.4 and cylinder body
The clearance channel being formed between 10, buffering liquid oil flows through quantitative oil groove 8.5 of crossing, and crosses oil mass and diminishes, buffer compresses and produces
Raw cushion effect；When piston rod 1 moves round about, potted component 7 moves to another spacing direction of cannelure 8.1 of piston 8,
Cross the clearance channel being formed between oil groove 8.3 and/or excessively oily breach 8.4 and cylinder body 10 and quantitative oil groove 8.5 of crossing mutually interconnects
Logical, buffering liquid oil flows through oil groove 8.3 and/or excessively oily breach 8.4, quantitative oil groove 8.5 of crossing, and crosses oil mass and becomes big, buffer
Reset；Buffer realizes the control of cushion effect by controlling buffering liquid oil stream through the uninterrupted of oil groove 8.5, cannelure 8.1
System.
More particularly, the cross section of cannelure 8.1 is in u-shaped, V-shaped or y type, and potted component 7 is movably spacing sheathed
On cannelure 8.1 and movement spacing when act on cannelure 8.1 side wall on；Described quantitation crosses oil groove 8.5 by axial direction
Cross oil groove 8.51, radially cross oil groove 8.52 and/or through hole 8.53, one end of piston rod 1 acts on the quantitative end crossing oil groove 8.5
Portion and form therebetween quantitative excessively oily passage, to limit the flow of buffering liquid oil, quantitative crosses oil groove 8.5 and cannelure 8.1
Relatively independent and do not interfere with each other.
Piston 8 is wholely set molding by plastics or elastomeric material, and piston rod 1 is made up of metal material and one end and piston 8
It is fixedly connected, and and axially cross oil groove 8.51, radially cross the quantitative excessively oily passage of formation between oil groove 8.52 and/or through hole 8.53,
To limit the flow of buffering liquid oil, the other end of piston rod 1 stretches out outside cylinder body 10；Potted component 7 is by the flexible or plasticity of band
Plastics or elastomeric material make, and movably spacing be set on cannelure 8.1.
The middle part of piston 8 is provided with functional hole 8.7, and quantitative oil groove 8.5 of crossing is arranged on functional hole 8.7, and quantitation crosses oil groove
8.5 by axially crossing oil groove 8.51, radially cross oil groove 8.52 and through hole 8.53 forms, wherein axially cross oil groove 8.51 and be arranged on effect
The side wall in hole 8.7, radially crosses the bottom that oil groove 8.52 is arranged on functional hole 8.7, and through hole 8.53 is crossed oil groove 8.52 with radial direction and connected,
One end of piston rod 1 is fixedly installed on functional hole 8.7, and crosses oil groove 8.51, radially crosses oil groove 8.52 and through hole with axial direction
Form quantitative excessively oily passage, the other end of piston rod 1 stretches out outside cylinder body 10 between 8.53；The cross section of cannelure 8.1 is in u-shaped,
Its side wall one end was provided with oil groove 8.3, and the other end was provided with oily breach 8.4, and the bottom of cannelure 8.1 corresponded to oil groove
8.3 are additionally provided with diversion division 8.2；Described potted component 7 is for O-ring seal and by the plastics with flexible or plasticity or rubber
Glue material is made, and movably spacing is set on cannelure 8.1.
During use, referring to Fig. 3, Fig. 4, when piston rod 1 moves to the right of Fig. 3, potted component 7 is to the cannelure of piston 8
The 8.1 spacing direction in left side is moved, and the gap being formed between oil groove 8.3 and excessively oily breach 8.4 and cylinder body 10 of substantially blockading
Passage, now, buffering liquid oil can only flow from quantitative oil groove 8.5 of crossing, and because the mistake oil mass in the unit interval diminishes, makes buffering
Device produces larger cushion effect, and buffer compresses and produces cushion effect, and its work process is referring to the change procedure of Fig. 3 to Fig. 4.When
Piston rod 1 to when moving on the left side of Fig. 4, move, and crosses oil groove by the spacing direction in right side of the cannelure 8.1 to piston 8 for the potted component 7
The clearance channel being formed between 8.3 and excessively oily breach 8.4 and cylinder body 10 and quantitative oil groove 8.5 of crossing are interconnected, and now, delay
Rush liquid oil can from crossing oil groove 8.3, excessively oily breach 8.4, quantitative oil groove 8.5 of crossing flow, due to the mistakes oil mass increasing in the unit interval
Greatly, the cushion effect that buffer produces reduces, and buffer resets rapidly, and its work process is referring to the change procedure of Fig. 4 to Fig. 3.Slow
Rush device and realize the control of cushion effect by controlling buffering liquid oil stream through the uninterrupted of oil groove 8.5, cannelure 8.1.
In said structure, buffer also includes end cap 2, the first elastic component 3, baffle plate 4 and sealing member 5, described end cap 2,
First elastic component 3, baffle plate 4 and sealing member 5 are sequentially sleeved on piston rod 1.End cap 2 is fixedly installed on the opening of cylinder body 10；
Baffle plate 4 is arranged on the front end of sealing member 5；First elastic component 3 is spring and is placed between end cap 2 and baffle plate 4, its one end elasticity
Act on end cap 2, other end elastic reaction, on baffle plate 4, makes sealing member 5 reset movement.The rear end of sealing member 5 also sets up limit
Bit slice 6, banking stop 6 is fixedly installed on the inwall of cylinder body 10 and is provided with several thereon for lacking that buffering liquid oil passes through
Mouthful；When buffer resets, the end position-limiting action of piston 8 is on banking stop 6；Described sealing member 5 is y type sealing ring and difference
The inwall of the surface to piston rod 1 and cylinder body 10 seals.
Be additionally provided with the second elastic component 9 in cylinder body 10, the second elastic component 9 be spring and be arranged on piston 8 and cylinder body 10 it
Between, in the end of piston 8, other end elastic reaction, in the inner bottom part of cylinder body 10, is that the reset of piston 8 carries to its one end elastic reaction
For elastic acting force.
The above-mentioned preferred version for the present invention, those of ordinary skill in the art, to its simple modification or transformation, all fall within
Within protection scope of the present invention.
Claims (5)
1. a kind of buffer of controllable cushion effect, including piston rod (1), piston (8), cylinder body (10) and be filled in cylinder body
(10) internal buffering liquid oil, one end of piston rod (1) is connected with piston (8), and the other end stretches out cylinder body (10) outward, piston
(8) be provided with cannelure (8.1) on, the end of cannelure (8.1) be provided with oil groove (8.3) and/or excessively oily breach (8.4),
And movable sleeve is provided with potted component (7), the middle part of piston (8) is additionally provided with quantitation and crosses oil groove (8.5), and quantitation crosses oil groove (8.5)
Relatively independent with cannelure (8.1) and do not interfere with each other, buffer passes through quantitative to cross the mutual of oil groove (8.5) and cannelure (8.1)
Cooperation controls cushion effect during work；
It is characterized in that: described cannelure (8.1) concave is arranged on the outer surface of piston (8), potted component (7) by plastics or
Elastomeric material is made and outside dimension is suitable with the inner wall size of cylinder body (10), and movably spacing is set in cannelure
(8.1), on, potted component (7) was blockaded when cannelure (8.1) moves to an at least spacing direction oil groove (8.3) and/or mistake
The passage of oily breach (8.4)；The middle part of piston (8) is provided with least crosses oil groove (8.5), quantitative mistake in axial direction, tortuous quantitation
Oil groove (8.5) and cannelure (8.1) independently on piston (8)；
When described piston rod (1) is fixedly installed on piston (8) and a direction is mobile thereto, potted component (7) is to piston
(8) the spacing direction of cannelure (8.1) wherein is moved, and substantially blockaded oil groove (8.3) and/or excessively oily breach (8.4) with
The clearance channel being formed between cylinder body (10), buffering liquid oil crosses oil groove (8.5) flowing through quantitative, crosses oil mass and diminishes, buffer
Compress and produce cushion effect；When piston rod (1) moves round about, potted component (7) is to the cannelure (8.1) of piston (8)
Another spacing direction is moved, cross the clearance channel of formation between oil groove (8.3) and/or excessively oily breach (8.4) and cylinder body (10), with
And quantitative oil groove (8.5) of crossing is interconnected, buffering liquid oil is through oil groove (8.3) and/or excessively oily breach (8.4), quantitative excessively oily
Groove (8.5) flows, and crosses oil mass and becomes big, buffer resets；Buffer passes through to control buffering liquid oil stream through oil groove (8.5), ring
The uninterrupted of shape groove (8.1) realizes the control of cushion effect；
The cross section of described cannelure (8.1) is in u-shaped, V-shaped or y type, and potted component (7) is movably spacing to be set in cannelure
(8.1) on side wall that is upper and acting on cannelure (8.1) when movement is spacing；Described quantitation crosses oil groove (8.5) by axial mistake
Oil groove (8.51), radially cross oil groove (8.52) and/or through hole (8.53) composition, one end of piston rod (1) acts on quantitative excessively oily
The end of groove (8.5) and form therebetween quantitative excessively oily passage, to limit the flow of buffering liquid oil, quantitative crosses oil groove
(8.5) relatively independent with cannelure (8.1) and do not interfere with each other；
Described piston (8) is wholely set molding by plastics or elastomeric material, piston rod (1) be made up of metal material and one end with
Piston (8) is fixedly connected, and and axially crosses oil groove (8.51), radially crosses formation between oil groove (8.52) and/or through hole (8.53)
Quantitative excessively oily passage, to limit the flow of buffering liquid oil, the other end of piston rod (1) stretches out cylinder body (10) outward；Potted component
(7) it is made up of the plastics with flexible or plasticity or elastomeric material, and movably spacing be set on cannelure (8.1)；
The middle part of described piston (8) is provided with functional hole (8.7), and quantitative oil groove (8.5) of crossing is arranged on functional hole (8.7), fixed
Measured oil groove (8.5) by axially crossing oil groove (8.51), radially cross oil groove (8.52) and through hole (8.53) forms, wherein axially excessively oily
Groove (8.51) is arranged on the side wall of functional hole (8.7), radially crosses the bottom that oil groove (8.52) is arranged on functional hole (8.7), through hole
(8.53) with radial direction cross oil groove (8.52) connect, one end of piston rod (1) is fixedly installed on functional hole (8.7), and with axial direction
Cross oil groove (8.51), radially cross and between oil groove (8.52) and through hole (8.53), form the quantitative passage of oil excessively, piston rod (1) another
Cylinder body (10) is stretched out outward in end；The cross section of cannelure (8.1) is in u-shaped, and its side wall one end was provided with oil groove (8.3), the other end
It was provided with oily breach (8.4), the bottom of cannelure (8.1) corresponded to oil groove (8.3) and is additionally provided with diversion division (8.2)；Described
Potted component (7) make by O-ring seal and by the plastics with flexible or plasticity or elastomeric material, and movably limit
Position is set on cannelure (8.1).
2. can control the buffer of cushion effect according to claim 1 it is characterised in that described buffer also includes end cap
(2), the first elastic component (3), baffle plate (4) and sealing member (5), described end cap (2), the first elastic component (3), baffle plate (4) and close
Sealing (5) is sequentially sleeved on piston rod (1).
3. can control the buffer of cushion effect according to claim 2 it is characterised in that described end cap (2) is fixedly installed on cylinder
The opening of body (10)；Baffle plate (4) is arranged on the front end of sealing member (5)；First elastic component (3) is spring and is placed in end cap (2)
And baffle plate (4) between, on end cap (2), other end elastic reaction, on baffle plate (4), makes sealing member (5) to its one end elastic reaction
Reset movement.
4. can control the buffer of cushion effect according to claim 3 it is characterised in that the rear end of described sealing member (5) also sets
Put banking stop (6), banking stop (6) is fixedly installed on the inwall of cylinder body (10) and is provided with several thereon and supplies buffering liquid
The breach that oil passes through；When buffer resets, the end position-limiting action of piston (8) is on banking stop (6)；Described sealing member (5) is
The inwall of y type sealing ring and the respectively surface to piston rod (1) and cylinder body (10) seals.
5. can control the buffer of cushion effect according to claim 1 or 4 it is characterised in that also setting up in described cylinder body (10)
There is the second elastic component (9), the second elastic component (9) is spring and is arranged between piston (8) and cylinder body (10), its one end elasticity
Act on the end of piston (8), other end elastic reaction, in the inner bottom part of cylinder body (10), is that the reset of piston (8) provides elasticity
Active force.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510064714.3A CN104653686B (en) | 2015-02-06 | 2015-02-06 | Buffer with controllable buffering force |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510064714.3A CN104653686B (en) | 2015-02-06 | 2015-02-06 | Buffer with controllable buffering force |
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| CN104653686A CN104653686A (en) | 2015-05-27 |
| CN104653686B true CN104653686B (en) | 2017-02-01 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107165967B (en) * | 2016-03-08 | 2021-04-23 | 川湖科技股份有限公司 | Buffer device |
| CN107989499B (en) * | 2017-12-14 | 2023-07-04 | 广东东泰五金精密制造有限公司 | Damper with variable damping force |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20022202U1 (en) * | 2000-12-28 | 2001-08-30 | Hydrostat Gmbh Stosdaempfer Un | Hydraulic shock absorber with maximum force limitation |
| DE202006003197U1 (en) * | 2006-03-01 | 2007-07-12 | Hettich-Oni Gmbh & Co. Kg | Damper for furniture |
| CN200955562Y (en) * | 2006-09-27 | 2007-10-03 | 戴安辉 | Novel shock absorber |
| CN201027888Y (en) * | 2007-04-30 | 2008-02-27 | 伍志勇 | Furniture damper |
| CN101634349B (en) * | 2009-08-13 | 2011-12-21 | 伍志勇 | Furniture damper |
| CN201705853U (en) * | 2010-06-29 | 2011-01-12 | 沈秋庆 | Damping buffer |
| CN103216565B (en) * | 2013-03-27 | 2015-11-25 | 杨炯华 | The hydraulic damper that gas is auxiliary |
| CN203395067U (en) * | 2013-08-02 | 2014-01-15 | 安吉宏峰气弹簧科技有限公司 | Telescopic rod and telescopic structure unit thereof |
| CN204533329U (en) * | 2015-02-06 | 2015-08-05 | 伍志勇 | A kind of buffer controlling cushion effect |
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