CN2050065U - Amortization pullback spring gate arch - Google Patents
Amortization pullback spring gate arch Download PDFInfo
- Publication number
- CN2050065U CN2050065U CN 89207423 CN89207423U CN2050065U CN 2050065 U CN2050065 U CN 2050065U CN 89207423 CN89207423 CN 89207423 CN 89207423 U CN89207423 U CN 89207423U CN 2050065 U CN2050065 U CN 2050065U
- Authority
- CN
- China
- Prior art keywords
- door
- extension spring
- pullback spring
- amortization
- damping
- 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
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- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
The utility model provides an amortization pullback spring door arch. An air cylinder and a piston air damping mechanism are installed at a certain position of the pullback spring. When a door quickly semi-closes the majority of the opening degree under the action of the pullback spring, the piston receives air damping in the air cylinder, thus reducing the acting force of the door striking the doorframe. The utility model has the advantages of simple structure, and low cost, maintains the size and using method of the existing pullback spring door arch, but can eliminate the noise and protect the door frame. The amortization pullback spring door arch is particularly suitable to be installed in the places that are frequently used and require quietness, such as hotels, hospitals, offices and shops, and can also be used for doors in household.
Description
The utility model is a kind of damping extension spring door bow that door is abated the noise when closing.
Existing common extension spring door bow, an end is fixed on the doorframe, and the other end hangs on the door.When door is pushed (drawing) when opening, the extension spring elongation, but after external force removes, the very fast recovery original length of extension spring, the active force and the impact sound of door knocking door case are too big.If extension spring is hung more loosely, door is difficult to fasten.
In the patent No. is in 87211418, discloses a kind of door snubber, and its purpose is to reduce the bump of door to doorframe, and weak point is to shut the door after you.
The purpose of this utility model is to avoid above-mentioned weak point of the prior art, and provide a kind of door that can make to push away (drawing) fast and open, the speed of personnel's inlet/outlet can be affected, after the external force that pushes away (drawing) door is removed, door can be shut most of aperture automatically fast, and then automatic slowly is shut remaining aperture again, the very little damping extension spring door bow of impact sound that makes the active force of a knocking door case and send.
The purpose of this utility model is finished in the following way.As shown in the figure: inflator (5) and piston (6) are housed in the extension spring (3), end cap (12) on the inflator (5) and the nutplate (1) on the piston rod all are to be through in the extension spring (3), one way valve on end cap (12) end face is made up of a suction hole (11) and a rubber tile (10), inflator (5) right-hand member has a damping hole (8), and left end has an air vent (4) and guide pin bushing (2).Sealing ring (7) is arranged in the groove of piston (6).The extension spring (3 right side) that is contained on inflator (5) and the piston (6) should have certain pretension.Extension spring (3 left side) left end is fixed on the doorframe with nail or wood screw, and the mesopore (13) on the end cap (12) hangs on the door with nail or wood screw.The same with existing common extension spring door bow during dress damping extension spring door bow will have certain pretension.
When door pushes away (drawing) when opening, the very fast elongation of extension spring (3 left side) on nutplate (1) left side, the extension spring (3 right side) on nutplate (1) the right also will be extended, extension spring (3 right side) drives nutplate (1) and piston rod fast to left movement, air cavity (9) volume increases, cavity pressure is lower than atmospheric pressure, air on end cap (12) suction hole (11) and wash rubber tile (10) open and suck air cavity (9) fast, make can push away (drawing) fast and open.
After the external force that pushes away (drawing) door was removed, whole extension spring (3) will recover the original length.The very fast recovery the original length of extension spring (3 left side) on nutplate (1) left side at first.Make that door is fast automatic shuts most of aperture.Secondly the extension spring (3 right side) on nutplate (1) the right also will recover the original length, extension spring (3 right side) drives nutplate (1) and piston rod, air in piston (6) the compression air cavity (9) moves right a segment distance very soon, makes that door is fast automatic again shuts a part of aperture.At this moment, air cavity (9) internal pressure is greater than atmospheric pressure, rubber tile (10) is close to end cap (12) end face sealing suction hole (11), the interior air of air cavity (9) can only be discharged from damping hole (8), and the movement velocity of second half section that makes piston (6) inflator (5) in depends on the speed of air discharge.The size of control damping hole (8) just can make an automatic slowly close remaining aperture.
The utility model advantage: kept the size and the using method of existing common extension spring door bow, very little air damping mechanism just has been installed in the partial-length of extension spring.Door under the extension spring effect, the most of aperture of first quick closedown, after be subjected to damping and just slowly shut, the active force of a knocking door case and impact sound are reduced greatly.All doors of loading onto damping extension spring door bow can both abate the noise, and keep the environment peace and quiet.This bow is simple in structure, easy to use.With low cost, can be contained on huge numbers of families' the door, be particularly useful for the personnel of being contained in and pass in and out place frequent and needs solemn silence, as hotel, hospital, office and shop.
Accompanying drawing of the present utility model is a damping extension spring door bow full sectional view.
Wherein symbolic representation is:
1---nutplate 2---guide pin bushing
3---extension spring 4---air vent
5---inflator 6---piston
7---sealing ring 8---damping hole
9---air cavity 10---rubber tile
11---suction hole 12---end cap
13---mesopore
Claims (4)
1, a kind of damping extension spring door bow is characterized in that inflator (5) and piston (6) are installed in the extension spring (3), and end cap (12) and the nutplate (1) on the piston rod on the inflator (5) are through in the extension spring (3), and end cap is equipped with one way valve on (12).
2, damping extension spring door bow according to claim 1 is characterized in that described one way valve is a suction hole (11) and the rubber tile (10) on the end cap (12).
3, damping extension spring door bow according to claim 1 is characterized in that described inflator (5), and right-hand member has a damping hole (8), and left end has an air vent (4).
4, damping extension spring door bow according to claim 1 is characterized in that having a sealing ring (7) on the described piston (6) at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89207423 CN2050065U (en) | 1989-05-18 | 1989-05-18 | Amortization pullback spring gate arch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89207423 CN2050065U (en) | 1989-05-18 | 1989-05-18 | Amortization pullback spring gate arch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2050065U true CN2050065U (en) | 1989-12-27 |
Family
ID=4864278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89207423 Pending CN2050065U (en) | 1989-05-18 | 1989-05-18 | Amortization pullback spring gate arch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2050065U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110168181A (en) * | 2017-01-09 | 2019-08-23 | 海蒂诗-海因策有限及两合公司 | Slide fitting for door |
-
1989
- 1989-05-18 CN CN 89207423 patent/CN2050065U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110168181A (en) * | 2017-01-09 | 2019-08-23 | 海蒂诗-海因策有限及两合公司 | Slide fitting for door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |