CN205778127U - A kind of damping fluid throttling arrangement of door closer - Google Patents
A kind of damping fluid throttling arrangement of door closer Download PDFInfo
- Publication number
- CN205778127U CN205778127U CN201620477251.3U CN201620477251U CN205778127U CN 205778127 U CN205778127 U CN 205778127U CN 201620477251 U CN201620477251 U CN 201620477251U CN 205778127 U CN205778127 U CN 205778127U
- Authority
- CN
- China
- Prior art keywords
- throttling
- cover
- end cap
- damped cylinder
- damping fluid
- 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.)
- Expired - Fee Related
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- Fluid-Damping Devices (AREA)
Abstract
A kind of damping fluid throttling arrangement of door closer, including damped cylinder, piston, left end cap, right end cap, return port, throttling bolt, throttle orifice, damping fluid, 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: this utility model also includes throttling cover, described throttling cover is positioned in damped cylinder, for tubbiness, left end has capping, throttle orifice is had in capping, 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, and is anchored in damped cylinder.This utility model can make damping force rise with piston movement speed and increase, the effective aperture that throttle orifice and throttling bolt can be made to constitute rises along with temperature and reduces, thus reduce damping force variation with temperature, therefore, compared with existing fixed restriction effective aperture, closing a speed is affected by environmental factors and is substantially reduced.
Description
Technical field
This utility model 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.
Utility model content
This utility model purpose is for overcoming above-mentioned drawback, and invents the damping fluid throttling arrangement of a kind of door closer.
This utility model include damped cylinder, piston, left end cap, right end cap, return port, throttling bolt, throttle orifice, damping fluid,
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: this utility model also includes throttling cover, and described throttling cover is positioned in damped cylinder, and for tubbiness, left end has capping,
Having throttle orifice, throttling cover left end to be suspended on the right side of left end cap and left part in damped cylinder in capping, throttling cover right-hand member does not cover, tightly
It is fixed 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
This utility model can make the effective aperture that throttle orifice and throttling bolt are constituted with damping fluid in damped cylinder by throttling cover elasticity
Pressure and change, and damping fluid pressure is directly proportional to piston movement speed, and this makes damping force rise with piston movement speed and increase
Add；And the temperature of throttling cover made of the slightly larger copper of coefficient of thermal expansion or aluminum class alloy becomes the irony damped cylinder slightly smaller more than coefficient of thermal expansion
The temperature change of equally effective length, the effective aperture making throttle orifice and throttling bolt constitute rises also with temperature and reduces, thus subtracts
Few damping force variation with temperature, therefore compared with existing fixed restriction effective aperture, close a speed is affected aobvious by environmental factors
Write and reduce.
Accompanying drawing explanation
Fig. 1 is the structural representation of the damping fluid throttling arrangement of this utility model door closer.
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
This utility model include 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, between piston 2 and right end cap 4, damped cylinder 1, left end cap 3, right end cap 4, return port 5 cavity in fill
Full damping liquid 9,
It is characterized in that: this utility model also includes that the cover 7 that throttles, described throttling cover 7 are positioned in damped cylinder 1, and for tubbiness, left end has envelope
Lid, capping has throttle orifice 8, and throttling cover 7 left ends are suspended on the right side of left end cap 3 and left part in damped cylinder 1, and have and can freely transport
Dynamic 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.
Utility model works principle is, in door leaf faster closing process, piston 2 moves from right to left, makes piston 2, resistance
Between Buddhist nun's cylinder 1, throttling cover 7, in chamber, damping fluid 9 pressure increases, and pushes the throttle orifice 8 on throttling cover 7 to throttling bolt 6, also
Just increasing the 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
During increase, suffered damping force 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, make the impact on closing gate resistance power of summer in the winter temperature difference reduce；Relative to existing
Keeping fixing state between throttling bolt and the throttle orifice of door closer, this utility model makes the damping force acting on door leaf with pass
Door speed and the speed that increases significantly increases, the relative reduction that affects of damping force is got off by temperature, mechanical friction, door leaf wind-engaging etc.,
Namely when door leaf closing velocity is slightly higher or temperature is slightly higher the effective aperture of throttling arrangement can than existing door closer throttling arrangement etc.
Effect aperture is small and produces bigger resistance and reduces and close a speed, otherwise can be bigger than the effective aperture of existing door closer throttling arrangement
Many and make door leaf be easier to close, thus be easily adjusted throttling bolt 6 and produce bigger sound avoiding door leaf closing velocity the highest
Sound, also avoids the state that door leaf can not close simultaneously.
Claims (3)
1. the damping fluid throttling arrangement of a 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), 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 damping fluid (9)
It is characterized in that: also include throttling cover (7), described throttling cover (7) is positioned in damped cylinder (1), for tubbiness, left end has capping, having throttle orifice (8), throttling cover (7) left end to be suspended on left end cap (3) right side and damped cylinder (1) interior left part in capping, throttling cover (7) right-hand member does not cover, it is anchored in damped cylinder (1)
Described piston (2) is placed in throttling cover (7), and the tolerance fit between throttling cover (7) internal diameter and the external diameter of piston (2) 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 is bigger than the orifice diameter on equal existing door closer,
The tip of described throttling bolt (6) faces the throttle orifice (8) in throttling cover (7), and the cone angle of the conical tip of throttling bolt (6) 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 damped 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 characterized in that: described throttling cover (7) selects the alloy material that copper or aluminum etc temperature change is slightly larger, described damped cylinder (1) selects the alloy material that the change of irony class temperature is slightly smaller, and the flatulence of heat type change difference between bucket portion effective length L of described throttling cover (7) and its isometric described damped cylinder (1) 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 |
|---|---|---|---|
| CN201620477251.3U CN205778127U (en) | 2016-05-24 | 2016-05-24 | A kind of damping fluid throttling arrangement of door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620477251.3U CN205778127U (en) | 2016-05-24 | 2016-05-24 | A kind of damping fluid throttling arrangement of door closer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205778127U true CN205778127U (en) | 2016-12-07 |
Family
ID=58116043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620477251.3U Expired - Fee Related CN205778127U (en) | 2016-05-24 | 2016-05-24 | A kind of damping fluid throttling arrangement of door closer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205778127U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927085A (en) * | 2016-05-24 | 2016-09-07 | 杨天玥 | Damping fluid throttling device of door closer |
-
2016
- 2016-05-24 CN CN201620477251.3U patent/CN205778127U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927085A (en) * | 2016-05-24 | 2016-09-07 | 杨天玥 | Damping fluid throttling device of door closer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20210524 |