CN204782476U - Prevent fire door door closer - Google Patents
Prevent fire door door closer Download PDFInfo
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- CN204782476U CN204782476U CN201520488201.0U CN201520488201U CN204782476U CN 204782476 U CN204782476 U CN 204782476U CN 201520488201 U CN201520488201 U CN 201520488201U CN 204782476 U CN204782476 U CN 204782476U
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- ratchet
- door closer
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- lever
- trip
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Abstract
The utility model discloses a prevent fire door door closer, including install the door leaf top close the door gear and one end is fixed on the door frame, the other end and close the pull rod that the door gear is connected, its characterized in that: it is equipped with the drive gear matched with pivot that is used for with inside to close the door gear, the one end of pivot with the pull rod links to each other, and a ratchet is installed to its other end, the side of ratchet is equipped with a lever means, lever means is made by an electromagnet control unidirectional rotating is realized to the ratchet. The utility model discloses simple structure, control accuracy, it is with low costs moreover.
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 be closed automatically, 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, 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 side of described ratchet is provided with a leverage, and described leverage makes described ratchet realize one-directional rotation by a magnet control.
Described leverage comprises trip(ping) lever, connecting rod and brace, the lower end of described trip(ping) lever is rotatably connected to described ratchet side, the centre of described connecting rod is rotatably connected to described trip(ping) lever side, the front end of described connecting rod is against the turning end of described trip(ping) lever, its rear end is connected with the front end of described brace, the rear end of described brace is connected with described electromagnet, ratchet and torsion spring is provided with in described trip(ping) lever, described brace is driven successively by described electromagnet, connecting rod and trip(ping) lever action, described trip(ping) lever can be rotated towards the direction pressing close to described ratchet, and described ratchet can rely on the elastic card of described torsion spring on described ratchet.
The back side of described ratchet is vertically installed with limit signal pin, the downside of described connecting rod is provided with a contact-making switch, the bottom of described contact-making switch is provided with a shell fragment, described trip(ping) lever rotates at run-on point place and is provided with a switch plate, one end of described switch plate can extend the limit signal pin place of described ratchet, and its other end extends the shell fragment place, bottom of contact-making switch.
The central rotational point place of described connecting rod is provided with a torsion spring.
Described trip(ping) lever forms the U-type groove of opening towards described ratchet direction, and described ratchet 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 side, and the rear end of described electromagnet armature and described brace is hinged.
Described door closer-holder is fixed on a plate base, and the side that described base is positioned at described door closer-holder is provided with side plate, and described trip(ping) lever, connecting rod are all rotatably connected on described side plate.
Described door closer-holder is other is provided with a smoke-temperature sensing fire detecting alarm be connected with described electromagnet by signal transmssion line.
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 and fragmentary, perspective view;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the right view of Fig. 1;
Fig. 4 is the view of the another kind of embodiment of the 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 2 of outside by being located at the rotating shaft on cylinder body, and 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 a plate base 31, and the side that base 31 is positioned at door closer-holder 1 is provided with side plate 32.
Leverage comprises trip(ping) lever 41, connecting rod 42 and brace 43, wherein the bottom of trip(ping) lever 41 is hinged on side plate 32 as the fulcrum that it rotates, the upper end of trip(ping) lever 41 is rotating one end, the centre of connecting rod 42 is also hinged on side plate 32 as run-on point, the front end of connecting rod 42 can be resisted against in the turning end of trip(ping) lever 41, the rear end of connecting rod 42 is connected with the front end of brace 43, the rear end of brace 43 is connected with electromagnet, described brace 43 is driven successively by electromagnet, connecting rod 42 and trip(ping) lever 41 action, the central rotational point of connecting rod 42 is provided with a torsion spring 49, the back side of ratchet 12 is vertically installed with limit signal pin 48, the downside of connecting rod 42 is provided with a contact-making switch 47, the bottom of contact-making switch 47 is provided with a shell fragment strutted, the run-on point place of trip(ping) lever 41 is connected with a rotating switch plate 45, one end of switch plate 45 can extend limit signal pin 48 place of ratchet 12, the other end of switch plate 45 extends below the shell fragment of contact-making switch 47.
Trip(ping) lever 41 forms the U-type groove of opening towards ratchet 12, and be provided with ratchet 44 and torsion spring (not shown) in U-type groove, ratchet 44 is connected in U-type groove by torsion spring, and ratchet 44 faces the direction of ratchet 12.
Electromagnet primarily of iron core, can alive coil and armature composition, iron core and coil are fixed in the framework 46 of side, and the rear end of electromagnet armature and brace 43 is hinged.When after coil electricity, iron core and armature are magnetized, become opposite polarity two blocks of magnet, and between produce electromagnetic attraction, armature is moved to iron core direction, thus brace 43 is driven the past direction away from ratchet 12 to move by electromagnet armature, also the rear end of drivening rod 42 is moved simultaneously, centre due to connecting rod 42 is connected on side plate 32 rotationally, therefore connecting rod 42 is made to rotate by the counter clockwise direction of Fig. 1, the front end of connecting rod 42 is pressed on the turning end of trip(ping) lever 41, trip(ping) lever 41 is forced to rotate towards the direction pressing close to ratchet 12, thus the ratchet 44 in trip(ping) lever 41 is stuck on ratchet 12.
When electromagnet power-off, magnetic disappears, brace 43 no longer keeps being turned right the state pulled by armature, therefore the power making connecting rod 42 rotate toward clockwise direction disappears, due to connecting rod 42 being provided with torsion spring 49, connecting rod 42 or maintenance front end are flexiblely against the state on trip(ping) lever 41, but the front end of connecting rod 42 is no longer suppressed on trip(ping) lever 41, ratchet 44 in trip(ping) lever 41 can unclamp from ratchet 12, and trip(ping) lever 41 can be movable under the reaction of built-in spring and ratchet.
Need at ordinary times to connect 24V dc source, electromagnetic actuation, drives trip(ping) lever 41 near ratchet 12 by brace 43, connecting rod 42, and the ratchet 44 in trip(ping) lever 41 is engaged with ratchet 12, and ratchet 44 is stuck in 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, and ratchet 44 turns along the rotation direction of ratchet 12, therefore can be opened toward enabling direction by door leaf smoothly.Trip(ping) lever 41 is while ratchet 12, and one end of switch plate 45 is the state departed from limit signal pin 48, and the other end of switch plate 45 disengages switch 47 by the strutting effect of shell fragment, makes signaling switch be in off-state.
Because ratchet 44 is stuck in the tooth root of ratchet 12 all the time under the effect of torsion spring, prevent labeled door from rotating toward direction of closing the door, by fireproof door closer can be forced above can only to rotate toward enabling direction, guarantee that labeled door is held open state.
When the power supply by fire protection linkage control or tripping magnet, electromagnet is decontroled, the front end of connecting rod 42 is no longer crushed on trip(ping) lever 41, ratchet 44 is no longer forced to be stuck in ratchet 12 tooth root place, be flexible contact condition between ratchet 44 and ratchet 12, therefore door closer can drive pull bar 2 to cut out fireproof door leaf toward direction of closing the door.After labeled door is closed, one end of switch plate 45 is rotated under the contention effect of limit signal pin 48, make the other end of switch plate 45 up extrusion elastic connect contact-making switch 47, make signaling switch transfer on-state to, send the buttoned-up signal of door to control system simultaneously.Recover after release 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 utility model can also be provided with a smoke-temperature sensing fire detecting alarm 5 be connected with electromagnet by signal transmssion line on door closer-holder 1 side, as shown in Figure 4, when smoke-temperature sensing fire detecting alarm 5 detects the condition of a fire, just can close labeled door at once.Change traditional labeled door control method, namely feel cigarette (temperature-sensitive) fire detection alarm when detecting the condition of a fire, first fire signal is sent to fire control system, then sent by fire control system and close gate signal and carry out action to labeled door.It is for the change of control method, not only reduce the controlling unit of labeled door, decrease because control circuit fault causes, labeled door is failure to actuate urgent time, the situation of misoperation, more importantly making the lockup of labeled door when there is the condition of a fire shift to an earlier date further, more effectively reducing people's life, property loss that fire causes.
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 (8)
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 side of described ratchet is provided with a leverage, and described leverage makes described ratchet realize one-directional rotation by a magnet control.
2. a kind of fireproof door closer according to claim 1, it is characterized in that: described leverage comprises trip(ping) lever, connecting rod and brace, the lower end of described trip(ping) lever is rotatably connected to described ratchet side, the centre of described connecting rod is rotatably connected to described trip(ping) lever side, the front end of described connecting rod is against the turning end of described trip(ping) lever, its rear end is connected with the front end of described brace, the rear end of described brace is connected with described electromagnet, ratchet and torsion spring is provided with in described trip(ping) lever, described brace is driven successively by described electromagnet, connecting rod and trip(ping) lever action, described trip(ping) lever can be rotated towards the direction pressing close to described ratchet, and described ratchet can rely on the elastic card of described torsion spring on described ratchet.
3. a kind of fireproof door closer according to claim 2, it is characterized in that: the back side of described ratchet is vertically installed with limit signal pin, the downside of described connecting rod is provided with a contact-making switch, the bottom of described contact-making switch is provided with a shell fragment, described trip(ping) lever rotates at run-on point place and is provided with a switch plate, one end of described switch plate can extend the limit signal pin place of described ratchet, and its other end extends the shell fragment place bottom described contact-making switch.
4. a kind of fireproof door closer according to claim 3, is characterized in that: the central rotational point place of described connecting rod is provided with a torsion spring.
5. a kind of fireproof door closer according to claim 4, is characterized in that: described trip(ping) lever forms the U-type groove of opening towards described ratchet direction, and described ratchet and described torsion spring are arranged in described U-type groove.
6. a kind of fireproof door closer according to claim 5, is characterized in that: the iron core of described electromagnet and coil are fixed on the framework that is positioned at side, and the rear end of described electromagnet armature and described brace is hinged.
7. a kind of fireproof door closer according to claim 6, it is characterized in that: described door closer-holder is fixed on a plate base, the side that described base is positioned at described door closer-holder is provided with side plate, and described trip(ping) lever, connecting rod are all rotatably connected on described side plate.
8. a kind of fireproof door closer according to any one of claim 1 to 7, is characterized in that: described door closer-holder is other is provided with a smoke-temperature sensing fire detecting alarm be connected with described electromagnet by signal transmssion line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520488201.0U CN204782476U (en) | 2015-07-08 | 2015-07-08 | Prevent fire door door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520488201.0U CN204782476U (en) | 2015-07-08 | 2015-07-08 | Prevent fire door door closer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204782476U true CN204782476U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520488201.0U Active CN204782476U (en) | 2015-07-08 | 2015-07-08 | Prevent fire door door closer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468489A (en) * | 2018-02-01 | 2018-08-31 | 俞云祥 | A kind of magnetic ratchet hinge structure |
| CN108868430A (en) * | 2018-08-20 | 2018-11-23 | 广州六瑞消防科技有限公司 | A kind of door closer |
| TWI695111B (en) * | 2019-06-24 | 2020-06-01 | 謝仲賢 | Device for releasing and recovering fire-proof smoke gate |
| CN113309441A (en) * | 2021-07-07 | 2021-08-27 | 乐辉 | Linkage door closer mechanism with real-time delay positioning function |
-
2015
- 2015-07-08 CN CN201520488201.0U patent/CN204782476U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468489A (en) * | 2018-02-01 | 2018-08-31 | 俞云祥 | A kind of magnetic ratchet hinge structure |
| CN108468489B (en) * | 2018-02-01 | 2023-05-23 | 俞云祥 | Magnetic ratchet hinge structure |
| CN108868430A (en) * | 2018-08-20 | 2018-11-23 | 广州六瑞消防科技有限公司 | A kind of door closer |
| TWI695111B (en) * | 2019-06-24 | 2020-06-01 | 謝仲賢 | Device for releasing and recovering fire-proof smoke gate |
| CN113309441A (en) * | 2021-07-07 | 2021-08-27 | 乐辉 | Linkage door closer mechanism with real-time delay positioning function |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |