CN204552408U - A kind of fireproof door closer - Google Patents
A kind of fireproof door closer Download PDFInfo
- Publication number
- CN204552408U CN204552408U CN201520203691.5U CN201520203691U CN204552408U CN 204552408 U CN204552408 U CN 204552408U CN 201520203691 U CN201520203691 U CN 201520203691U CN 204552408 U CN204552408 U CN 204552408U
- Authority
- CN
- China
- Prior art keywords
- door closer
- ratchet
- motion bar
- holder
- movable tongue
- 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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- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
The utility model discloses a kind of fireproof door closer, comprise the door closer-holder being arranged on door leaf top and the pull bar that one end is fixed on doorframe, the other end is connected with described door closer-holder, described door closer-holder is provided with the rotating shaft for matching with the travelling gear of inside, one end of described rotating shaft is connected with described pull bar, its other end is provided with a ratchet, the top of described ratchet is provided with a leverage, and described leverage is rotated up and down by a magnet control, and described ratchet one-way is rotated.The utility model structure is simple, precise control, and cost is low.
Description
Technical field
The utility model relates to a kind of door closer.
Background technology
At present, in order to make the buildings such as some markets, school, warehouse when breaking out of fire, labeled door can automatically decline or close door, play the object of isolation fire, usually all on labeled door, door closer can be installed, but at present for door closer structure and transmission all more complicated of labeled door, make it with high costs, structural instability and dispose procedure is slow.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of door closer of simple and compact for structure, labeled door that release movement is reliable and stable.
For achieving the above object, the utility model is by the following technical solutions:
A kind of fireproof door closer, comprise the door closer-holder being arranged on door leaf top and the pull bar that one end is fixed on doorframe, the other end is connected with described door closer-holder, described door closer-holder is provided with the rotating shaft for matching with the travelling gear of inside, one end of described rotating shaft is connected with described pull bar, its other end is provided with a ratchet, the top of described ratchet is provided with a leverage, and described leverage is rotated up and down by a magnet control, and described ratchet one-way is rotated.
Described leverage comprises and is arranged on a motion bar above described ratchet, is arranged on movable tongue in described motion bar and torsion spring, described motion bar under the control of described electromagnet can towards press close to described ratchet or leave described ratchet direction rotate, make described movable tongue can rely on the elastic card of described torsion spring on described ratchet or leave ratchet.
Described motion bar forms the U-type groove of opening towards described ratchet direction, and described movable tongue and described torsion spring are arranged in described U-type groove.
The iron core of described electromagnet and coil are fixed on the framework that is positioned at described motion bar turning end side, and described electromagnet armature is by the turning end of motion bar described in a pinned connection, and on described armature, cover has a spring.
Described door closer-holder is fixed on the bearing of a formation L-type, described bearing is made up of the base plate be fixed on bottom described door closer-holder and the side plate being positioned at described door closer-holder side, described side plate is formed with one for holding the storage tank of described ratchet, described motion bar is arranged on the top of described side plate, and the described movable tongue in motion bar is just to described storage tank.
After adopting technique scheme, the utility model is compared with background technology, and tool has the following advantages: the utility model structure is simple, precise control, and cost is low, installing/dismounting is easy.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is stereogram of the present utility model;
Fig. 4 is the sectional view of motion bar part of the present utility model;
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment
As shown in Figure 1 to Figure 3, a kind of fireproof door closer, comprises the door closer-holder 1 that is arranged on door leaf top and one end and to be fixed on doorframe and the pull bar 2 that is connected with door closer-holder 1 of the other end.
Door closer-holder 1 can be inner by travelling gear, tooth bar plunger, back-moving spring, the hydraulic cylinder of the hydraulic pressure wet goods composition of control fuel tap and filling or other existing door closer-holder, the internal construction of door closer-holder 1 and operating principle are that therefore prior art repeats no more, travelling gear in the hydraulic cylinder of tradition door closer is connected with the pull bar of outside by being located at the rotating shaft on cylinder body, the two ends of the rotating shaft 11 that the utility model matches with travelling gear wear out the both sides of door closer-holder 1, one end of its shaft 11 is connected with pull bar 2, rotating shaft 11 is provided with a ratchet 12 at the other end being positioned at door closer-holder 1 opposite side, ratchet 12 controls its unidirectional rotation direction by a leverage.
Door closer-holder 1 is fixed on the bearing of a L-type, and bearing is made up of with the side plate 32 being positioned at door closer-holder 1 side the base plate 31 be fixed on bottom door closer-holder 1, its latus inframedium 32 is formed with one for holding the storage tank of ratchet 12.
Leverage comprises a motion bar 41, be arranged on movable tongue 42 in motion bar 41 and torsion spring 43, the side of motion bar 41 is provided with electromagnet, motion bar 41 is arranged on the top of side plate 32 along parallel direction, wherein one end of motion bar 41 is hinged on the side of side plate 32 as the fulcrum rotated, electromagnet primarily of iron core, can alive coil and armature composition, iron core and coil are fixed on the framework 46 that is positioned at motion bar 41 side, electromagnet armature connects the turning end of motion bar 41 by a bearing pin 44, and on armature, cover has a spring 45.When after coil electricity, iron core and armature are magnetized, become opposite polarity two blocks of magnet, and between produce electromagnetic attraction, when suction is greater than the reaction force of spring 45, armature moves to iron core direction, when interruption of power supply, magnetic disappears and makes armature return to original position under the reaction force of spring 45, therefore motion bar about 41 can be driven to rotate by electromagnet.
As shown in Figure 4, motion bar 41 forms downward opening U-type groove, and movable tongue 42 is connected in U-type groove by torsion spring 43, and movable tongue 42 faces the top of ratchet 12.
Need at ordinary times to connect 24V dc source, electromagnetic actuation, drive motion bar 41 movable downwards, the movable tongue 42 in motion bar 41 is also moved downward, and is engaged with ratchet 12, torsion spring 43 makes movable tongue 42 block to ratchet 12 tooth root all the time; When opening fireproof door leaf, the pull bar 2 of door closer is movable towards enabling direction, drives the ratchet 12 in rotating shaft 11 to rotate, movable tongue 42 is turned along the rotation direction of ratchet 12, therefore door leaf can be opened toward enabling direction.
When labeled door will be made to rotate toward direction of closing the door, movable tongue 42 is stuck in the tooth root of ratchet 12 under the effect of torsion spring 43, prevents labeled door from rotating toward direction of closing the door, and forces fireproof door closer can only rotate toward enabling direction, guarantees that labeled door is held open state.
When the power supply by fire protection linkage control or tripping magnet, electromagnet is decontroled, and under the effect of spring 45 upwards resilience, motion bar 41 is upwards movable together with movable tongue 42, movable tongue 42 and ratchet 12 are departed from, makes door closer drive pull bar 2 to close fireproof door leaf toward direction of closing the door.Need after release to recover to connect 24V dc source, labeled door can be made again to keep normally open, and as access failure 24V dc source, that labeled door will be in normally off.
The above; be only the utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (5)
1. a fireproof door closer, comprise the door closer-holder being arranged on door leaf top and the pull bar that one end is fixed on doorframe, the other end is connected with described door closer-holder, it is characterized in that: described door closer-holder is provided with the rotating shaft for matching with the travelling gear of inside, one end of described rotating shaft is connected with described pull bar, its other end is provided with a ratchet, the top of described ratchet is provided with a leverage, and described leverage is rotated up and down by a magnet control, and described ratchet one-way is rotated.
2. a kind of fireproof door closer according to claim 1, it is characterized in that: described leverage comprises and is arranged on a motion bar above described ratchet, is arranged on movable tongue in described motion bar and torsion spring, described motion bar under the control of described electromagnet can towards press close to described ratchet or leave described ratchet direction rotate, make described movable tongue can rely on the elastic card of described torsion spring on described ratchet or leave ratchet.
3. a kind of fireproof door closer according to claim 2, is characterized in that: described motion bar forms the U-type groove of opening towards described ratchet direction, and described movable tongue and described torsion spring are arranged in described U-type groove.
4. a kind of fireproof door closer according to claim 3, it is characterized in that: the iron core of described electromagnet and coil are fixed on the framework that is positioned at described motion bar turning end side, described electromagnet armature is by the turning end of motion bar described in a pinned connection, and on described armature, cover has a spring.
5. a kind of fireproof door closer according to claim 4, it is characterized in that: described door closer-holder is fixed on the bearing of a formation L-type, described bearing is made up of the base plate be fixed on bottom described door closer-holder and the side plate being positioned at described door closer-holder side, described side plate is formed with one for holding the storage tank of described ratchet, described motion bar is arranged on the top of described side plate, and the described movable tongue in motion bar is just to described storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520203691.5U CN204552408U (en) | 2015-04-07 | 2015-04-07 | A kind of fireproof door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520203691.5U CN204552408U (en) | 2015-04-07 | 2015-04-07 | A kind of fireproof door closer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204552408U true CN204552408U (en) | 2015-08-12 |
Family
ID=53827535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520203691.5U Expired - Fee Related CN204552408U (en) | 2015-04-07 | 2015-04-07 | A kind of fireproof door closer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204552408U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110434109A (en) * | 2019-07-16 | 2019-11-12 | 太仓荣文合成纤维有限公司 | A kind of elasticizer coldplate cleaning device |
-
2015
- 2015-04-07 CN CN201520203691.5U patent/CN204552408U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110434109A (en) * | 2019-07-16 | 2019-11-12 | 太仓荣文合成纤维有限公司 | A kind of elasticizer coldplate cleaning device |
| CN110434109B (en) * | 2019-07-16 | 2024-02-20 | 太仓荣文合成纤维有限公司 | Add bullet machine cooling plate belt cleaning device |
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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: 20150812 Termination date: 20170407 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |