CN211229979U

CN211229979U - Electric door closer

Info

Publication number: CN211229979U
Application number: CN201922124770.8U
Authority: CN
Inventors: 王勋
Original assignee: Wuhan Kesmart Intelligent Control Equipment Co ltd
Current assignee: Wuhan Kesmart Intelligent Control Equipment Co ltd
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-08-11
Anticipated expiration: 2029-12-02

Abstract

The utility model discloses an electric door closer, which comprises a housin, the slider, hydraulic means and stop gear, the casing is formed with the spout, the slider slides and sets up on the spout, hydraulic means is used for driving the slider, stop gear is used for restricting the slider to sliding to the direction of closing the door, stop gear accepts in the casing, stop gear includes the electro-magnet, the dabber, upset part and spacing part, be provided with the permanent magnet in the electro-magnet, the one end of dabber is installed in order to realize the linkage with upset part in the upset part, the upset part all rotates with spacing part and sets up in the casing, spacing part is provided with and is used for carrying on spacing portion to the slider, the upset part is used for restricting spacing part and rotates so that spacing portion is located the spout, when the electro-magnet lets in forward instantaneous current. So, reopen the door and can realize automatic re-setting, need not to stir buckle or reset button, need not provide continuous current when preventing that fire door keeps normally open state simultaneously, the low power dissipation.

Description

Electric door closer

Technical Field

The utility model relates to a fire-proof equipment field, concretely relates to electric door closer.

Background

The existing fireproof door electric door closer is mainly limited in two modes under the condition of keeping a normally open state. One method is to utilize a sucker type electromagnet to attract an iron sheet to tightly press a limiting block for limiting, and when the fireproof door is in a normally open state, the electromagnet needs to be continuously supplied with power to keep limiting; when the controller gives a door closing signal, the electromagnet is powered off, the limit is released, and the fireproof door is normally closed. However, this solution needs to provide a continuous and large working current to the electromagnet to ensure sufficient adsorption force, increases the system load, and has high power consumption and high requirement for system power supply.

The other method is to use a push-pull electromagnet to transmit horizontal force and combine the horizontal force with a mechanical buckling structure to limit. When the fireproof door is in a normally open state, the mechanical buckling structure is used for limiting; when the controller gives a door closing signal, instantaneous current is provided for the push-pull type electromagnet, tripping and limit releasing are realized through electromagnet action, and the fireproof door is normally closed. This kind of scheme need not provide continuous current when preventing that fire door keeps normally open state, can realize the low-power consumption, nevertheless after opening the door again, must manually stir the buckle and realize spacingly, unable automatic re-setting, when the unable normal power supply of system moreover, because the unable action of electro-magnet, spacing unable relieving, prevent that fire door can not close, have great potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model discloses need provide an electric door closer.

The utility model provides an electric door closer, which comprises a shell, a slide block, a hydraulic device and a limiting mechanism, wherein the shell is provided with a chute, the slide block is arranged on the chute in a sliding way, the hydraulic device is used for driving the slide block, the limiting mechanism is used for limiting the slide block to slide towards the door closing direction, the limiting mechanism is contained in the shell, the limiting mechanism comprises an electromagnet, a mandrel, a turning part and a limiting part, a permanent magnet is arranged in the electromagnet, one end of the mandrel is arranged in the turning part to realize linkage with the turning part, the turning part and the limiting part are both rotationally arranged in the shell, the limiting part is provided with a limiting part used for limiting the slide block, the turning part is used for limiting the rotation of the limiting part so that the limiting part is positioned in the chute, when the electromagnet is electrified with forward instantaneous current, the electromagnet attracts the mandrel to limit the sliding block, and when the electromagnet is electrified with reverse instantaneous current, the mandrel is separated from the electromagnet to drive the overturning part to rotate, so that the limit of the sliding block is relieved.

According to the utility model discloses a concrete embodiment, electric door closer still including accept in support in the casing, the electro-magnet set firmly in on the support, upset part through first round pin axle rotate connect in on the support, spacing part through second round pin axle rotate connect in on the support.

According to the utility model discloses a concrete embodiment, the upset part including the upset body and set up in first activity pivot on the upset body, first activity pivot is used for the restriction spacing part rotates, first round pin axle is worn to locate on the upset body.

According to the utility model discloses a concrete embodiment, the one end of spacing part is formed with the block tongue, the other end of spacing part passes through second round pin axle install in on the support, first activity pivot can pin the block tongue is with the restriction spacing part rotates.

According to the utility model discloses a concrete embodiment, the upset body is offered and is used for the installation the U-shaped mouth of dabber, the one end of dabber is formed with circular dog, circular dog card is located on the U-shaped mouth.

According to the utility model discloses a concrete embodiment, spacing portion is second activity pivot.

According to the utility model discloses a concrete embodiment, hydraulic means with the slider passes through the connecting rod and connects.

According to the utility model discloses a concrete embodiment, electric door closer still includes signal feedback module, signal feedback module is used for feeding back the signal of opening the door for preventing fire door monitored control system host computer.

According to the utility model discloses a concrete embodiment, electric door closer still including be used for the electric capacity of electro-magnet power supply.

According to the utility model discloses a concrete embodiment, the both ends of casing are passed through the end cover and are sealed, electric capacity accept in electric door closer one side in the end cover.

The utility model discloses an electric door closer, owing to optimized stop gear, through the electro-magnet, the dabber, upset part and spacing part realize limit function, prevent that fire door opens when appointed angle, provide forward electric current in the twinkling of an eye for the electro-magnet, dabber and electro-magnet actuation, upset part restriction spacing part rotates, the spacing portion restriction slider of restriction part slides to the direction of closing the door, when preventing that fire door needs to close, provide reverse electric current in the twinkling of an eye for the electro-magnet, the dabber is thrown off with the electro-magnet, it rotates to drive upset part, upset part is spacing to spacing part has been relieved, spacing part can free rotation, the slider can slide to the direction of closing the door, so, automatic re-opening can be realized to the re-opening door, need not to stir buckle or reset button, prevent that fire door keeps.

Drawings

Fig. 1 is a schematic structural view of an electric door closer provided in an embodiment of the present invention;

fig. 2 is a schematic perspective view of a slider and a limiting mechanism of an electric door closer according to an embodiment of the present invention;

fig. 3 is another schematic perspective view of the sliding block and the limiting mechanism of the electric door closer according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

Referring to fig. 1, the electric door closer disclosed by the present invention comprises a housing 3, a slider 9, a hydraulic device 11 and a limiting mechanism, wherein the housing 3 is formed with a sliding slot 31, the slider 9 is slidably disposed on the sliding slot 31, the hydraulic device 11 is used for driving the slider 9, the limiting mechanism is used for limiting the slider 9 from sliding towards the door closing direction, the limiting mechanism is accommodated in the housing 3, the limiting mechanism comprises an electromagnet 5, a mandrel 6, an overturning part 7 and a limiting part 8, a permanent magnet is disposed in the electromagnet 5, one end of the mandrel 6 is mounted in the overturning part 7 to be linked with the overturning part 7, the overturning part 7 and the limiting part 8 are both rotatably disposed in the housing 3, the limiting part 8 is provided with a limiting portion 81 for limiting the slider 9, the overturning part 7 is used for limiting the rotation of the limiting part 8 so that the limiting portion 81 is located in the sliding slot 31, when the, the electromagnet 5 attracts the mandrel 6 to limit the sliding block 9, and when the electromagnet 5 is electrified with reverse instantaneous current, the mandrel 6 is separated from the electromagnet 5 to drive the overturning part 7 to rotate, so that the limit of the sliding block 9 is released.

Further, the shell 3 is basically in a hollow cuboid shape, the sliding groove 31 is formed in the bottom surface of the shell 3 along the length direction, two ends of the shell 3 are sealed through the end cover 1, the capacitor 2 is arranged in the end cover 1 on one side of the electric door closer, and the capacitor 2 is an energy storage element and used for supplying power to the electromagnet 5. Therefore, when a fire accident happens, if the system can not supply power normally, the capacitor 2 can discharge to provide instant current, so that the core shaft 6 is separated from the electromagnet 5, and the fire door is ensured to be normally closed.

Referring to fig. 2 and 3, in the present embodiment, a bracket 4 is accommodated in a housing 3, an electromagnet 5 is fixedly installed in the bracket 4 by a screw, a turning part 7 is rotatably connected to the bracket 4 by a first pin 12, a limiting part 8 is rotatably connected to the bracket 4 by a second pin 13, and the first pin 12 and the second pin 13 are both perpendicular to two side surfaces of the housing 3.

In this embodiment, the turning component 7 includes a turning body 71 and a first movable rotating shaft 72 disposed on the turning body 71, the first movable rotating shaft 72 is used for limiting the rotation of the limiting component 8, the first pin 12 is disposed on the turning body 71 in a penetrating manner, and two ends of the first pin 12 are rotatably connected with the bracket 4. The turning body 71 is provided with a U-shaped opening 711 for installing the mandrel 6, a circular stop 61 is formed at one end of the mandrel 6, the mandrel 6 penetrates through the U-shaped opening 711, and the circular stop 61 is clamped on the U-shaped opening 711. In this way, one end of the mandrel 6 is mounted in the turning member 7, and is interlocked with the turning member 7.

In this embodiment, a stopper 81 and a latch 82 are formed at one end of the stopper 8, the other end of the stopper 8 is mounted on the bracket 4 by the second pin 13, and the first movable rotating shaft 72 of the tilting member 7 can lock the latch 82 to restrict the rotation of the stopper 8. The latch 82 is protruded relative to the limiting portion 81, the limiting portion 81 is a second movable rotating shaft, and the limiting portion 81 may also be a protrusion, so long as the sliding block 9 can be prevented from sliding in the door closing direction.

In this embodiment, the electric door closer further comprises a signal feedback module, and the signal feedback module is used for feeding back a door opening signal to the host of the fireproof door monitoring system. After preventing fire door and reopening appointed angle, prevent the state of getting electric of fire door monitored control system host computer control electro-magnet 5, after opening the door and targetting in place, signal feedback module feedback signal to preventing fire door monitored control system host computer, the host computer gives an instruction, provide forward electric current in the twinkling of an eye for electro-magnet 5, make

dabber

6 and 5 attractions of electro-magnet, realize limit function promptly, automatic re-setting, the loaded down with trivial details operation that needs manual reset after reopening the fire door has been improved, it controls by preventing fire door monitored control system host computer to open the door to reset, realize automaticly, avoid the trouble that manual.

Specifically, the utility model discloses an electric door closer of parallel type installation, hydraulic means 11 are installed on the door leaf, and hydraulic means 11 passes through connecting rod 10 with slider 9 to be connected, and slider 9 is installed in spout 31, and spout 31 restriction slider 9 can only slide in the horizontal direction. When the fireproof door is opened to a specified angle, positive instantaneous current is provided for the electromagnet 5, the electromagnet 5 attracts the mandrel 6, the electromagnet 5 and the mandrel 6 can keep attracted state due to the permanent magnet in the electromagnet 5, at the moment, the first movable rotating shaft 72 of the overturning part 7 locks the clamping tongue 82, so that the limiting part 8 is limited to rotate, and the limiting part 81 of the limiting part 8 limits the sliding block 9 to slide towards the door closing direction; when the fireproof door needs to be closed, reverse instantaneous current is provided for the electromagnet 5, the electromagnet 5 overcomes the adsorption force of the permanent magnet and the mandrel 6, the mandrel 6 is separated, the overturning part 7 is driven to rotate, the limit of the overturning part 7 on the clamping tongue 82 of the limiting part 8 is released, the limiting part 8 can rotate freely, the rotating torque provided by the hydraulic device 11 is transmitted to the sliding block 9, the sliding block 9 is pushed to slide in the door closing direction, and the fireproof door is normally closed.

To sum up, owing to optimized stop gear, realize limit function through electro-magnet 5, dabber 6, upset part 7 and stop part 8, can realize automatic re-setting when reopening, need not to stir buckle or reset button, need not provide continuous current when preventing that fire door keeps normally open state simultaneously, the low power dissipation, in addition, electric capacity 2 is energy storage components and parts, when the unable normal power supply of system, can supply power for electro-magnet 5, realizes the function that the outage was closed the door.

It is right to have used specific individual example above the utility model discloses expound, only be used for helping to understand the utility model discloses, not be used for the restriction the utility model discloses. To the technical field of the utility model technical personnel, the foundation the utility model discloses an idea can also be made a plurality of simple deductions, warp or replacement.

Claims

1. An electric door closer, comprising:

a housing formed with a chute;

the sliding block is arranged on the sliding groove in a sliding mode;

a hydraulic device for driving the slide block; and

a limiting mechanism for limiting the sliding block to slide towards the door closing direction, the limiting mechanism is accommodated in the shell and comprises an electromagnet, a mandrel, a turning part and a limiting part, a permanent magnet is arranged in the electromagnet, one end of the mandrel is installed in the turning part to realize linkage with the turning part, the turning part and the limiting part are both rotatably arranged in the shell, the limiting part is provided with a limiting part for limiting the sliding block, the turning part is used for limiting the limiting part to rotate so that the limiting part is positioned in the chute, when the electromagnet is supplied with forward instantaneous current, the electromagnet attracts the mandrel to limit the sliding block, when the electromagnet is supplied with reverse instantaneous current, the mandrel is separated from the electromagnet to drive the turning part to rotate, thereby releasing the limit of the slider.

2. The electric door closer according to claim 1, further comprising a bracket received in the housing, wherein the electromagnet is fixed to the bracket, the flip member is rotatably coupled to the bracket via a first pin, and the position limiting member is rotatably coupled to the bracket via a second pin.

3. The electric door closer according to claim 2, wherein the turning member includes a turning body and a first movable rotating shaft disposed on the turning body, the first movable rotating shaft is used for limiting the rotation of the limiting member, and the first pin shaft is disposed on the turning body in a penetrating manner.

4. The electric door closer according to claim 3, wherein a latch is formed at one end of the position-limiting member, the other end of the position-limiting member is mounted on the bracket through the second pin shaft, and the first movable rotating shaft can lock the latch to limit the rotation of the position-limiting member.

5. The electric door closer according to claim 3, wherein the flip body is opened with a U-shaped opening for mounting the spindle, and a circular stopper is formed at one end of the spindle and is clamped on the U-shaped opening.

6. The electric door closer according to claim 1, wherein the position-restricting portion is a second movable rotating shaft.

7. The electric door closer according to claim 1, wherein the hydraulic device is connected to the slider by a link.

8. The electric door closer of claim 1, further comprising a signal feedback module for feeding back a door opening signal to the fire door monitoring system host.

9. The electric door closer according to any one of claims 1 to 8, further comprising a capacitor for supplying power to the electromagnet.

10. The electric door closer according to claim 9, wherein both ends of the housing are closed by end caps, and the capacitor is accommodated in the end cap on one side of the electric door closer.