CN202645244U - Concealed door closer - Google Patents
Concealed door closer Download PDFInfo
- Publication number
- CN202645244U CN202645244U CN 201220175517 CN201220175517U CN202645244U CN 202645244 U CN202645244 U CN 202645244U CN 201220175517 CN201220175517 CN 201220175517 CN 201220175517 U CN201220175517 U CN 201220175517U CN 202645244 U CN202645244 U CN 202645244U
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- CN
- China
- Prior art keywords
- valve body
- piston
- door closer
- valve
- wall
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- 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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Abstract
The utility model discloses a concealed door closer. The door closer comprises a cylindric valve body, wherein end covers are arranged at the front and rear ends of the valve body; upper and lower glands are arranged on the upper and lower walls of the valve body respectively; front and rear pistons are arranged in the valve cavity of the valve body and are connected by a carriage; the right end of the rear piston is connected with a compression spring arranged in the right cavity of the valve body; an oil circuit is arranged at the left end of the wall of the valve body; idler wheels are installed on the front and rear pistons; a transmission cam fit with the idler wheels is arranged in a through hole running through the wall of the valve body and the carriage; and the wall of the valve body is thin; furthermore, in the concealed door closer, the front piston is provided with a check valve steel ball and is provided with plastic seal rings for preventing clearance leakage between the piston and the valve body at the left end; and the oil circuit is provided with a one-way adjusting valve. The door closer has the advantages of good sealability, long life and good concealment.
Description
Technical field
The utility model relates to door closer, particularly a kind of concealed door closer.
Background technology
Door closer is to be contained in a hydraulic press of a upper spring-like, can be by discharging after the compression after door is opened, door is shut automatically, the effect that resembles swinging door is arranged, can guarantee the door be unlocked after, be closed to accurately, timely initial position, existing hydraulic drive power door closer mainly is comprised of gear shaft, tooth bar, and require height with cooperating of body, difficult assembling, and poor sealing performance.Spring force is delivered to planker by piston, planker driven wheel axle center, thus drive the door-hinge rotation, can not satisfy the requirement of user's dynamics inequality.Existing door closer volume is large, directly is contained on the head, diminishes the image appearance of door.And existing door closer only depends on the contraction of spring force to realize switch gate, do not have corresponding buffering dynamics, and gate is fragile.
The utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of novel door-closer hydraulic pressure mechanism is provided, and provides cost savings, and it is fragile to have solved existing door closer, and sealing is poor, the problem that the life-span is short.
The realization the technical solution of the utility model is: a kind of concealed door closer, comprise that tubular valve body, valve body front and back ends are provided with end cap, the upper and lower wall of valve body is respectively equipped with upper and lower gland, is provided with forward and backward piston in the valve pocket of valve body, and the front and back piston is connected by planker; The back piston right-hand member is connected with the Compress Spring that is located at the right chamber of valve body, is provided with oil circuit at the valve body wall left end of valve body, on the piston of front and back roller is housed, and is provided with roller to cooperate driving cam within running through the through hole of valve body wall and planker; The body wall of described valve body is thin.
Further: in above-mentioned concealed door closer, described secondary piston is provided with the one way valve steel ball, and left end is provided with the plastic sealing ring that prevents that piston and valve body gap from leaking.Described oil circuit is provided with unidirectional adjustment valve.
Compared with prior art, concealed door closer provided by the utility model is equipped with roller on the piston of front and back, is provided with roller to cooperate driving cam within running through the through hole of valve body wall and planker; The body wall of described valve body is thin.Namely change overall structure and the connected mode of door closer, utilize the structural advantages that has floor spring to change overall structure and the connected mode of door closer.During described cam drive, because roller cooperates driving cam, strength increases with open angle and descends rapidly so open the door, described secondary piston left end is provided with a plastic sealing ring, reduced the clearance leakage between piston and the valve body, good sealing is arranged, reduced the friction of piston and valve body, prolonged application life.Described door closer valve body wall is thin, and it is hidden in door or the doorframe when installing, and can well keep the characteristic of door, can play again the effect of automatic door-closing.So door closer of the present utility model possesses good airproof performance, long, hiding advantage of life-span.
Description of drawings
Fig. 1: the vertical section structure schematic diagram of the utility model concealed door closer;
Wherein 1 valve body, 2 end caps, 3 upper press covers, 4 lower covers, 5 secondary pistons, 6 back pistons, 7 rollers, 8 plankers, 9 cams, 10 one way valve steel balls, 11 Compress Springs, 12 plastic sealing rings.
The specific embodiment
For the ease of those skilled in the art's understanding, further specify below in conjunction with the hydraulic mechanism of the drawings and specific embodiments to the concealed cam structure door closer of the utility model:
As shown in Figure 1,1, a kind of concealed door closer comprises that tubular valve body 1, valve body front and back ends are provided with end cap 2, and the upper and lower wall of valve body is respectively equipped with upper and lower gland 3,4, be provided with forward and backward piston 5,6 in the valve pocket of valve body, front and back piston 5,6 is connected by planker 8; Back piston 6 right-hand members are connected with the Compress Spring 11 that is located at the right chamber of valve body, are provided with oil circuit at the valve body wall left end of valve body, and roller 7 is housed on the front and back piston 5,6, are provided with roller 7 to cooperate driving cam 9 within running through the through hole of valve body wall and planker; The body wall of described valve body 1 is thin.Described secondary piston 5 is provided with one way valve steel ball 10, and left end is provided with the plastic sealing ring 12 that prevents that piston and valve body gap from leaking.Described oil circuit is provided with unidirectional adjustment valve.When opening the door, door-hinge band moving cam drives forward and backward piston 5,6 by planker 8 and moves right, and at this moment the oil on oil cylinder inner carrier the right flows into secondary piston 5 left sides by one way valve, realizes opening the door action.When at closing time, cam 9 drives the door rotation, promotes left at the lower back piston 6 of the effect of Compress Spring 11, and back piston drives planker 8, planker band moving cam 9, and cam 9 drives the door rotation, makes an autoshutdown.When secondary piston is moved to the left, one way valve sealing, the hydraulic oil on the secondary piston left side flows to the right of secondary piston along oil circuit through adjusting needle-valve in oil cylinder, and movement velocity is then by the flow-control of hydraulic oil, regulates to adjust valve and can obtain to close the door fast the effect of closing the door at a slow speed.
The above is a preferred embodiment of the present utility model, and in the situation that does not break away from the present utility model design, any apparent distortion and the replacement carried out all belong within the utility model protection domain.
Claims (3)
1. concealed door closer, comprise that tubular valve body (1), valve body front and back ends are provided with end cap (2), the upper and lower wall of valve body is respectively equipped with upper and lower gland (3,4), be provided with forward and backward piston (5,6) in the valve pocket of valve body, front and back piston (5,6) is connected by planker (8); Back piston (6) right-hand member is connected with the Compress Spring that is located at the right chamber of valve body (11), valve body wall left end at valve body is provided with oil circuit, it is characterized in that: the front and back piston is equipped with roller (7) on (5,6), is provided with roller (7) to cooperate driving cam (9) within running through the through hole of valve body wall and planker; The body wall of described valve body (1) is thin.
2. concealed door closer according to claim 1, it is characterized in that: described secondary piston (5) is provided with one way valve steel ball (10), and left end is provided with the plastic sealing ring (12) that prevents that piston and valve body gap from leaking.
3. concealed door closer according to claim 2, it is characterized in that: described oil circuit is provided with unidirectional adjustment valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220175517 CN202645244U (en) | 2012-04-16 | 2012-04-16 | Concealed door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220175517 CN202645244U (en) | 2012-04-16 | 2012-04-16 | Concealed door closer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202645244U true CN202645244U (en) | 2013-01-02 |
Family
ID=47414366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220175517 Expired - Fee Related CN202645244U (en) | 2012-04-16 | 2012-04-16 | Concealed door closer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202645244U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775704A (en) * | 2015-04-27 | 2015-07-15 | 姬志强 | Invisible door closer |
| CN105672799A (en) * | 2014-12-05 | 2016-06-15 | 多玛德国有限公司 | Floor spring |
| CN106761106A (en) * | 2016-12-27 | 2017-05-31 | 佛山市奥达金属制品有限公司 | Configurable parted hair formula cam gear |
-
2012
- 2012-04-16 CN CN 201220175517 patent/CN202645244U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672799A (en) * | 2014-12-05 | 2016-06-15 | 多玛德国有限公司 | Floor spring |
| CN104775704A (en) * | 2015-04-27 | 2015-07-15 | 姬志强 | Invisible door closer |
| CN106761106A (en) * | 2016-12-27 | 2017-05-31 | 佛山市奥达金属制品有限公司 | Configurable parted hair formula cam gear |
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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 |
Granted publication date: 20130102 Termination date: 20150416 |
|
| EXPY | Termination of patent right or utility model |