CN2097264U - Spring closer with buffer and positioning device - Google Patents
Spring closer with buffer and positioning device Download PDFInfo
- Publication number
- CN2097264U CN2097264U CN 90226713 CN90226713U CN2097264U CN 2097264 U CN2097264 U CN 2097264U CN 90226713 CN90226713 CN 90226713 CN 90226713 U CN90226713 U CN 90226713U CN 2097264 U CN2097264 U CN 2097264U
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- CN
- China
- Prior art keywords
- spring
- door leaf
- piston
- piston cylinder
- door
- 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.)
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Abstract
The utility model discloses a spring closer with a buffer and positioning device. The spring is installed in a piston cylinder, a piston core and other components are under the action of a non-return valve, and the negative pressure is generated in the piston cylinder when a door leaf is backwards closed. The speed of closing the door is reduced, and the intensive collision is prevented, because the negative pressure partly counteracts the spring force. A tooth-shaped notch arranged on the piston rod of the spring closer is matched with a positioning device for the door leaf, the positioning device is installed on the neck of the cover of the piston cylinder, and the door leaf can be fixed on an appropriate opening angle according to the demand.
Description
The utility model is a kind of spring door closer with buffering and positioner.
Spring door closer kind is a lot, and external force made the spring elongation when normally door leaf was opened, and shortens or reverses, and after external force is removed, under the spring force effect door leaf is closed.These spring door closers are buffering and positioner not, the door leaf speed of gyration is fast, send bigger collision sound when closing, can not door leaf be fixed on certain opening angle with people's wish, can not satisfy the needs of closing the door automatically and stop after collisionless and door leaf are opened at a certain angle in hotel, shop etc.
The purpose of this utility model provides does not a kind ofly automatically collide sound at closing time and can make door leaf stop at the spring door closer with buffering and positioner on certain enable possition arbitrarily.
Spring door closer of the present utility model is removed hole, door leaf position block and a fixing sheet, door leaf by spring, piston cylinder, piston core, buffer speed adjustment hole, buffering and is propped up component such as sheet and constitute.Spring is installed in the piston cylinder, and the buffer speed adjustment hole is located at the piston cylinder rear portion, and buffering is removed the hole and is located at the piston cylinder front portion slightly by the middle part, and the door leaf position block is located at piston cover neck.The piston rod front portion is thin and have the ease air gap, and piston core is enclosed within the piston rod front portion.Have the plurality of tooth-shaped breach on the piston rod, the shape of its shape and door leaf position block adapts.A fixing sheet and door leaf prop up sheet the spring door closer are connected near on the doorframe or wall and door leaf of door-hinge.
Spring door closer of the present utility model is owing to have above structure, just produce following buffering and positioning function: external force is pushed door leaf open, the door leaf that drive is installed on the door leaf props up sheet, and prop up connecting screw rod of sheet and piston rod etc. by door leaf, make piston rod compress spring by spring stop piece, air in the piston cylinder by the hole of opening on the spring stop piece after, overflow by the ease air gap between piston core and the piston rod front portion again.Remove when external force, compressed spring extends.Spring stop piece pushes against the piston core air gap that will escape and closes, and air can't enter in the piston cylinder by this crack, at this moment forms vacuum in the piston cylinder, produces negative pressure, and negative pressure is offset spring force.In this process, the air of right quantity enters piston cylinder from buffering speed adjustment hole.Negative pressure reduces, and door leaf gently rotates to closing direction.When door leaf was soon closed tight, spring had been elongated to certain-length, and elastic force reduces, and the door leaf velocity of rotation is very slow, and when piston core slipped over buffering releasing hole, air entered in the piston cylinder in a large number, made negative pressure elimination in the piston cylinder, and door leaf is closed tight under the spring force effect.Because door leaf is slowly to close under negative pressure is partly offset the situation of spring force, so do not collide sound at closing time.If allow door leaf stop at certain enable possition, need only when being returned to the relevant position, piston rod the door leaf position block be stuck on the profile of tooth breach of piston rod by the door leaf positioning handle, and it is motionless that door leaf just stops at this position.
Given a kind of embodiment further introduces spring door closer of the present utility model below in conjunction with accompanying drawing.
Fig. 1 the utility model vertical section figure
The anterior cross-sectional view of Fig. 2 piston rod
Fig. 3 buffer speed adjustment hole vertical section figure
As seen from Figure 1, in the present embodiment.When being installed, this door closer can be installed in a fixing sheet (1) near on the doorframe or wall of door-hinge with screw; With screw door leaf is propped up sheet (9) and be installed on the door leaf, make the longitudinal axis of this door closer and door-hinge line vertical line each other.Spring (3) is contained in piston cylinder (2) inside.When opening the door, door leaf drives door leaf and props up sheet (9), and the connecting screw rod etc. that props up sheet (9) and piston rod (7) by door leaf makes piston rod (7) by spring stop piece (4) compression spring (3), piston cylinder (2) inner spring (3) place air partly mainly by behind the hole on the spring stop piece (4), is overflowed by the ease air gap between piston core (5) and piston rod (7) front portion again.Spring (3) elongation when door leaf turns round to closing direction makes spring stop piece (4) push against piston core (5) air gap that will escape and closes, and piston cylinder (2) inner spring (3) place air pressure partly reduces, and forms negative pressure, the elastic force of negative pressure counteracting spring (3).In this process, the air of right quantity enters in the piston cylinder (2) from buffering speed adjustment hole (10), and negative pressure reduces, door leaf gently rotates to closing direction, and when door leaf was soon closed tight, spring (3) had been stretched to certain-length, elastic force reduces, and the door leaf velocity of rotation is very slow.When piston core (5) slipped over buffering releasing hole (11), air entered in a large number, and the interior negative pressure of piston cylinder (2) is eliminated, and door leaf is comparatively fast closed tight under the elastic force effect of spring (3).Can also see from Fig. 1, the piston rod of present embodiment has the profile of tooth breach on (7), by the door leaf positioning handle (13) that is installed in piston cover (6) neck door leaf position block (12) is fallen, piston rod (7) is fixed on needed position, and door leaf also stops at needed opening angle thereupon.Piston rod cover (8) can be flexible with piston rod (7), stops dust to be fallen on the piston rod (7).
Claims (2)
1, a kind ofly cushion and the spring door closer of positioner, it is characterized in that by piston cylinder (2), piston core (5), piston rod (7), spring (3), spring stop piece (4), a fixing sheet (1), door leaf having of propping up that sheet (9) and door leaf positioning handle (13) and door leaf position block parts such as (12) form:
1. spring (3) is installed in the piston cylinder (2).
2. spring stop piece (4) constitutes a unidirectional ease air gap with piston core (5), when piston rod (7) promotes spring stop piece (4) compression spring (3), air in the piston cylinder (2) crack is thus overflowed, when spring (3) extends, spring stop piece (4) pushes against piston core (5) and closes the ease air gap, forms negative pressure in piston cylinder this moment (2).
3. have the profile of tooth breach on the piston rod (7), door leaf position block (12) can be stuck on any one profile of tooth breach.
2, spring door closer as claimed in claim 1 is characterized in that piston cylinder (2) rear wall is provided with buffer speed adjustment hole (10), and with screw adjustment apertures size; On piston cylinder (2) middle wall, be provided with buffering and remove hole (11), also by screw adjustment apertures size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90226713 CN2097264U (en) | 1990-12-22 | 1990-12-22 | Spring closer with buffer and positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90226713 CN2097264U (en) | 1990-12-22 | 1990-12-22 | Spring closer with buffer and positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2097264U true CN2097264U (en) | 1992-02-26 |
Family
ID=4903908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90226713 Pending CN2097264U (en) | 1990-12-22 | 1990-12-22 | Spring closer with buffer and positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2097264U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101314911A (en) * | 2007-05-28 | 2008-12-03 | Lg电子株式会社 | Laundry machine |
| CN102094555A (en) * | 2011-01-04 | 2011-06-15 | 希美克(广州)实业有限公司 | Door closer capable of automatic-control positioning |
| TWI449835B (en) * | 2010-07-13 | 2014-08-21 | Nifco Inc | Damping device |
| WO2014161304A1 (en) * | 2013-04-01 | 2014-10-09 | Zhong Yubo | Horizontal door closer structure |
-
1990
- 1990-12-22 CN CN 90226713 patent/CN2097264U/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101314911A (en) * | 2007-05-28 | 2008-12-03 | Lg电子株式会社 | Laundry machine |
| TWI449835B (en) * | 2010-07-13 | 2014-08-21 | Nifco Inc | Damping device |
| CN102094555A (en) * | 2011-01-04 | 2011-06-15 | 希美克(广州)实业有限公司 | Door closer capable of automatic-control positioning |
| CN102094555B (en) * | 2011-01-04 | 2013-11-20 | 希美克(广州)实业有限公司 | Door closer capable of automatic-control positioning |
| WO2014161304A1 (en) * | 2013-04-01 | 2014-10-09 | Zhong Yubo | Horizontal door closer structure |
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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 |