CN105927085A - Damping fluid throttling device of door closer - Google Patents
Damping fluid throttling device of door closer Download PDFInfo
- Publication number
- CN105927085A CN105927085A CN201610347284.0A CN201610347284A CN105927085A CN 105927085 A CN105927085 A CN 105927085A CN 201610347284 A CN201610347284 A CN 201610347284A CN 105927085 A CN105927085 A CN 105927085A
- Authority
- CN
- China
- Prior art keywords
- throttling
- cover
- damping fluid
- left end
- end cap
- 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
Links
Classifications
-
- 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
Landscapes
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a damping fluid throttling device of a door closer. The damping fluid throttling device comprises a damping cylinder, a piston, a left end cover, a right end cover, backflow holes, a throttling bolt, a throttling hole, damping fluid and a spring. The part between the piston and the right end cover, the damping cylinder, the left end cover, the right end cover and cavities of the backflow holes are filled with the damping fluid. The damping fluid throttling device is characterized by further comprising a throttling cover which is located in the damping cylinder and is in a barrel shape; the left end of the throttling cover is provided with a sealing cover which is provided with the throttling hole; the left end of the throttling cover is suspended on the right side of the left end cover and at the left portion in the damping cylinder; and the right end of the throttling cover is provided with a sealing cover and is firmly fixed in the damping cylinder. By means of the damping fluid throttling device, damping force is increased along with increasing of the movement speed of the piston, an effective aperture formed by the throttling hole and the throttling bolt can be decreased along with increasing of the temperature, and therefore the changes of the damping force along with the temperature are reduced, and compared with an existing fixed throttling equivalent aperture, the influences of environment factors on the door closing speed are obviously reduced.
Description
Technical field
The present invention relates to the damping fluid throttling arrangement of a kind of door closer.
Background technology
The damping force of existing door closer changes with temperature, but can not be with bearing wind-force on door leaf, the change of door loose-leaf frictional force etc.
And change, it may appear that or damping force is not enough and make door leaf send the bigger sound when closing, or damping force is excessive and pass not
Visit.If it is the most cumbersome by door leaf normal switching-off to adjust throttling bolt with the change such as temperature, wind direction, also can make at throttling bolt
Sealing wear and leak damping fluid.Though using pulling force better compared with the door closer big, quality is higher, but also it is difficult to thoroughly solve
Certainly, cost also can significantly improve.
Summary of the invention
The present invention seeks to as overcoming above-mentioned drawback, and invent the damping fluid throttling arrangement of a kind of door closer.
The present invention includes damped cylinder, piston, left end cap, right end cap, return port, throttling bolt, throttle orifice, damping fluid, bullet
Spring, between piston and right end cap, damped cylinder, left end cap, right end cap, return port cavity in be full of damping fluid,
It is characterized in that: present invention additionally comprises throttling cover, described throttling cover is positioned in damped cylinder, and for tubbiness, left end has capping, envelope
Having covered throttle orifice, throttling cover left end is suspended on the right side of left end cap and left part in damped cylinder, and throttling cover right-hand member does not cover, fastening
In damped cylinder,
Described piston is placed in throttling cover, and the tolerance fit between throttling cover internal diameter and the external diameter of piston to ensure that both are in slip
Sealing state,
Described throttle orifice be placed in throttling cover 7 centers, orifice diameter than the orifice diameter on equal existing door closer more greatly,
The tip of described throttling bolt faces the throttle orifice on throttling cover, and the tapering of the conical tip of throttling bolt should be the most inclined
Use steel ball the most a bit or in throttling bolt end.
Overvoltage eduction valve to be installed on described damped cylinder.
The alloy material selecting copper or aluminum etc temperature change slightly larger is covered in throttling, and damped cylinder selects the alloy material that the change of irony class temperature is slightly smaller,
Needed at flatulence of heat type change difference throttle orifice to be equal between bucket portion effective length and its isometric damped cylinder of throttling cover, thermal compensation becomes
Change difference.
Beneficial effect
The present invention can make the effective aperture that throttle orifice and throttling bolt are constituted with the pressure of damping fluid in damped cylinder by throttling cover elasticity
Changing by force, and damping fluid pressure is directly proportional to piston movement speed, this makes damping force rise with piston movement speed and increase；
And the temperature of throttling cover made of the slightly larger copper of coefficient of thermal expansion or aluminum class alloy to become the irony damped cylinder slightly smaller more than coefficient of thermal expansion equal
The temperature change of effective length, the effective aperture making throttle orifice and throttling bolt constitute rises also with temperature and reduces, thus reduces resistance
Buddhist nun's power variation with temperature, therefore compared with existing fixed restriction effective aperture, closing a speed is affected by environmental factors and is significantly subtracted
Little.
Accompanying drawing explanation
Fig. 1 is the structural representation of the damping fluid throttling arrangement of door closer of the present invention.
Wherein: 1. damped cylinder, 2. piston, 3. left end cap, 4. right end cap, 5. return port, 6. throttling bolt, 7. save
Stream cover, 8. throttle orifice, 9. damping fluid, 10. spring, L. bucket portion effective length.
Detailed description of the invention
The present invention includes damped cylinder 1, piston 2, left end cap 3, right end cap 4, return port 5, throttling bolt 6, throttle orifice 8, damping
Liquid 9, spring 10, between piston 2 and right end cap 4, damped cylinder 1, left end cap 3, right end cap 4, return port 5 cavity in be full of resistance
Buddhist nun's liquid 9,
It is characterized in that: present invention additionally comprises throttling cover 7, described throttling cover 7 is positioned in damped cylinder 1, and for tubbiness, left end has capping,
Having throttle orifice 8 in capping, throttling cover 7 left ends are suspended on the right side of left end cap 3 and left part in damped cylinder 1, and it is free-moving to have energy
Gap, throttling cover 7 right-hand members do not cover, and are anchored in damped cylinder 1,
Described piston 3 is placed in throttling cover 7, and the tolerance fit between throttling cover 7 internal diameters and the external diameter of piston 2 to ensure that both are in
Slipper seal state, in order to throttling cover 7 can detect the damping fluid pressure change that piston 2 movement velocity produces,
Described throttle orifice 8 is placed in throttling cover 7 centers, and the tip of described throttling bolt 6 faces the throttle orifice 8 on throttling cover 7, in order to
Throttling cover 8 is granted the pressure of damping fluid 9 with piston 2 and is produced elastic deformation, thus changes and formed between throttling bolt 6 and throttling cover 7
Effective aperture, make damping force increase with the increase of piston movement speed,
Described throttle orifice 8 diameter is than the orifice diameter on equal existing door closer more greatly, in order to damping fluid 9 viscosity under low temperature
During raising, close a speed and also can keep normal；
The tapering of the conical tip of described throttling bolt 6 should suitable bigger than normal or throttling bolt 6 end use steel ball, in order to carry
The induction sensitivity of high door leaf speed.
Overvoltage eduction valve to be installed on described damped cylinder 1, it is simple to close under a power too strong, can release damping fluid 9 and make door leaf slow
Close without damaging door closer.
The alloy material that copper or aluminum etc temperature change is slightly larger selected by the cover 7 that throttles, and damped cylinder 1 selects the alloy material that the change of irony class temperature is slightly smaller,
Vulcanize needed at flatulence of heat type change difference throttle orifice to be equal to 8 between bucket portion effective length L and its isometric damped cylinder 1 of throttling cover 7
Repay change difference.
Operation principle of the present invention is, in door leaf faster closing process, piston 2 moves from right to left, make piston 2, damped cylinder 1,
Between throttling cover 7, in chamber, damping fluid 9 pressure increases, and pushes the throttle orifice 8 on throttling cover 7 to throttling bolt 6, the most just increases
Resistance to damping fluid 9, the positive rate making damping force and piston 2 move to left speed dramatically increases, and makes door leaf closing velocity increase time institute
Power dampened also increases sharply, otherwise damping force reduces the most rapidly；Throttling cover 7 varies with temperature its barrel of portion's effective length, and along with
Variations in temperature carrys out the effective aperture of expansion joint discharge orifice 8, makes the impact on closing gate resistance power of summer in the winter temperature difference reduce；Relative to existing door closer
Throttling bolt and throttle orifice between keep fixing state, the present invention makes the damping force acting on door leaf increase with door closing speed
The speed added significantly increases, and the relative reduction that affects of damping force is got off by temperature, mechanical friction, door leaf wind-engaging etc., namely exists
When door leaf closing velocity is slightly higher or temperature is slightly higher, the effective aperture of throttling arrangement can be less than the effective aperture of existing door closer throttling arrangement
Many and produce bigger resistance and reduce and close a speed, on the contrary can make than the big many of effective aperture of existing door closer throttling arrangement
Door leaf is easier to cut out, thus is easily adjusted throttling bolt 6 and produces bigger sound, simultaneously the most also avoiding door leaf closing velocity the highest
Avoid the state that door leaf can not close.
Claims (3)
1. a damping fluid throttling arrangement for door closer, including damped cylinder (1), piston (2), left end cap (3),
Right end cap (4), return port (5), throttling bolt (6), throttle orifice (8), damping fluid (9), spring (10), live
Between plug (2) and right end cap (4), damped cylinder (1), left end cap (3), right end cap (4), the cavity of return port (5)
In be full of damping fluid (9),
It is characterized in that: also include that throttling cover (7), described throttling cover (7) are positioned in damped cylinder (1), for tubbiness, a left side
End has capping, capping has throttle orifice (8), throttling cover (7) left end are suspended on left end cap (3) right side and damped cylinder
(1) interior left part, throttling cover (7) right-hand member does not cover, and is anchored in damped cylinder (1),
Described piston (3) is placed in throttling cover (7), the tolerance between throttling cover (7) internal diameter and the external diameter of piston (2)
Cooperation to ensure that both are in slipper seal state,
Described throttle orifice (8) is placed in throttling cover (7) center, and throttle orifice (8) diameter ratio is on equal existing door closer
Orifice diameter big,
The tip of described throttling bolt (6) faces the throttle orifice (8) in throttling cover (7), the circle of throttling bolt (6)
The cone angle of cone point uses steel ball more than 90 degree or in throttling bolt (6) end.
The damping fluid throttling arrangement of a kind of door closer the most as claimed in claim 1, it is characterised in that: described resistance
Buddhist nun's cylinder (1) is upper installs overvoltage eduction valve.
The damping fluid throttling arrangement of a kind of door closer the most as claimed in claim 1, it is characterised in that: described joint
Stream cover (7) selects the alloy material that copper or aluminum etc temperature change is slightly larger, and described damped cylinder (1) selects irony class temperature to become slightly
Little alloy material, between bucket portion effective length L of described throttling cover (7) and its isometric described damped cylinder (1)
Flatulence of heat type change difference will be equal to thermal compensation change difference needed for described throttle orifice (8) place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610347284.0A CN105927085A (en) | 2016-05-24 | 2016-05-24 | Damping fluid throttling device of door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610347284.0A CN105927085A (en) | 2016-05-24 | 2016-05-24 | Damping fluid throttling device of door closer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105927085A true CN105927085A (en) | 2016-09-07 |
Family
ID=56841079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610347284.0A Pending CN105927085A (en) | 2016-05-24 | 2016-05-24 | Damping fluid throttling device of door closer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105927085A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19857295C1 (en) * | 1998-12-14 | 2000-09-14 | Dorma Gmbh & Co Kg | Automatic door closer has spring loaded sliding piston provided with compression fitted minimum play linear sliding bearing |
| CN101363304A (en) * | 2007-08-10 | 2009-02-11 | 台湾福兴工业股份有限公司 | Device for automatically closing door |
| DE102010061837A1 (en) * | 2010-11-24 | 2012-05-24 | Geze Gmbh | Valve for driving a door or a window |
| CN203701820U (en) * | 2014-01-23 | 2014-07-09 | 佛山市钡思安防科技有限公司 | Novel floor spring |
| CN105370130A (en) * | 2015-12-10 | 2016-03-02 | 湖州职业技术学院 | Hydraulic damping force adjusting mechanism for hydraulic hinge |
| CN205778127U (en) * | 2016-05-24 | 2016-12-07 | 杨天玥 | A kind of damping fluid throttling arrangement of door closer |
-
2016
- 2016-05-24 CN CN201610347284.0A patent/CN105927085A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19857295C1 (en) * | 1998-12-14 | 2000-09-14 | Dorma Gmbh & Co Kg | Automatic door closer has spring loaded sliding piston provided with compression fitted minimum play linear sliding bearing |
| CN101363304A (en) * | 2007-08-10 | 2009-02-11 | 台湾福兴工业股份有限公司 | Device for automatically closing door |
| DE102010061837A1 (en) * | 2010-11-24 | 2012-05-24 | Geze Gmbh | Valve for driving a door or a window |
| CN203701820U (en) * | 2014-01-23 | 2014-07-09 | 佛山市钡思安防科技有限公司 | Novel floor spring |
| CN105370130A (en) * | 2015-12-10 | 2016-03-02 | 湖州职业技术学院 | Hydraulic damping force adjusting mechanism for hydraulic hinge |
| CN205778127U (en) * | 2016-05-24 | 2016-12-07 | 杨天玥 | A kind of damping fluid throttling arrangement of door closer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107939897B (en) | A kind of method and damper of the adjustable speed limit of shear thickening damper | |
| US9920563B2 (en) | Damping assembly, in particular for a flap of a vehicle | |
| US10280999B2 (en) | Damper assemblies | |
| KR101653475B1 (en) | Damper | |
| US10557513B2 (en) | Dampers | |
| CN208686865U (en) | A kind of hydraulic damper of bidirectional damper | |
| CN101975006B (en) | Multifunctional floor spring | |
| CN109185382A (en) | Built-in electromagnetic valve type variable-damp vibration damper | |
| CN205778127U (en) | A kind of damping fluid throttling arrangement of door closer | |
| CN105221634B (en) | Damper piston structure based on adaptive damping choke valve | |
| US6382147B1 (en) | Valve drive for a valve of an internal combustion engine | |
| CN105927085A (en) | Damping fluid throttling device of door closer | |
| CN207814079U (en) | A kind of fork truck lifting oil cylinder | |
| JP2019523178A (en) | In particular, the housing block of the hydraulic unit for vehicle brake equipment that can be electronically slip controlled | |
| CN208935248U (en) | A kind of high speed and large stroke damper of suitable blasting impact environment | |
| CN2651560Y (en) | Hydraulic damper for nuclear power station | |
| CN105605145A (en) | Assembly mount for movable fastening of motor vehicle assembly, and method for the mounting of motor vehicle assembly | |
| CN114458717B (en) | Self-compensating magnetorheological damper for inner cavity of cylinder body | |
| CN109306659A (en) | A kind of fluid viscous damper adding free inching gear | |
| CN207647629U (en) | Whole constant-pressure exhaust braking device | |
| CN104364553B (en) | Improvement in amortisseur | |
| CN102733701B (en) | A kind of damper with metal shell | |
| CN207961385U (en) | A kind of single valve piece bidirectional throttle formula daming piston | |
| CN106050797B (en) | A kind of support construction of solar battery sheet suitable for low temp area | |
| CN106286463B (en) | A kind of defect detection equipment of monocrystaline silicon solar cell piece |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Yang Tianyue Document name: the First Notification of an Office Action |
|
| DD01 | Delivery of document by public notice | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160907 |
|
| WD01 | Invention patent application deemed withdrawn after publication |