CN218716356U

CN218716356U - Quick-opening fireproof door

Info

Publication number: CN218716356U
Application number: CN202222934728.4U
Authority: CN
Inventors: 赵媛媛; 李振宝; 鲁小明
Original assignee: Nanjing Zhongtai Fire Equipment Co ltd
Current assignee: Nanjing Zhongtai Fire Equipment Co ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-03-24
Anticipated expiration: 2032-11-04

Abstract

The utility model discloses a fire door is prevented to quick-open type, including door frame, slide, door one, door-hinge, door two, switching device and slip guider, the slide is located on the door frame, door one articulates rotatory locating on the door frame, the door-hinge is located on the door one, door two articulates rotatory locating on the door-hinge, door one and door two can seal when closing, switching device locates on the door frame and slides on the slide AND gate two are connected, slip guider locates on the door two and slides in the door frame. The utility model belongs to the technical field of prevent fire door, specifically indicate one kind can the automatic identification personnel open fast, avoided preventing that fire door receives the quick-open type of external force self-closing simultaneously and prevented fire door.

Description

Quick-opening fireproof door

Technical Field

The utility model belongs to the technical field of prevent fire door, specifically indicate a fire door is prevented to quick-open type.

Background

The fireproof door is a door capable of meeting the requirements of fire resistance stability, integrity and heat insulation within a certain time, and is a fireproof partition with certain fire resistance arranged between fireproof partitions, evacuation staircases, vertical shafts and the like, and has the functions of preventing fire from spreading and smoke from spreading besides the function of a common door, so that the fire can be prevented from spreading within a certain time, people can be ensured to evacuate, the door has a huge effect on fire fighting work, people can obtain escape opportunities through the fireproof door in case of fire, the existing fireproof door is not fast enough to open and close, the evacuation of people is influenced, and the existing fireproof door is mostly in a single-side open type or a double-side open type, and in the open state, the door does not have a good fixing effect, is easy to automatically close when being extruded or collided by external force, and the evacuation of people is delayed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a can automatic identification personnel open fast, avoided preventing that fire door receives the quick-open type of external force self-closing simultaneously and prevent fire door.

In order to realize the above functions, the utility model discloses the technical scheme who takes as follows: a quick-opening fireproof door comprises a door frame, a slide way, a first door, a door shaft, a second door, an opening and closing device and a sliding guide device, wherein the slide way is arranged on the door frame; the opening and closing device comprises a chain wheel, a chain, a motor, a connecting rod, a sliding block and a pin rod, wherein the chain wheel is provided with two groups and rotates on a door frame, the chain is driven to be arranged on the chain wheel, the motor is in power connection with one group of chain wheels, the connecting rod is arranged on the chain, the sliding block is arranged on a slide rail in a sliding mode and is connected with the connecting rod, the pin rod is arranged on the sliding block and rotates in a door II, the chain drives the connecting rod, the connecting rod drives the sliding block to slide on the slide rail, the door II is pushed through the pin rod, the door I and the door II are folded at a door shaft, and therefore the door I and the door II can be quickly opened, when the motor is stopped, the position of the sliding block on the slide rail is not moved, the state of the door II can be locked, and the door II cannot be extruded by external force and can be closed.

Further, the sliding guide device comprises a supporting rod and a pulley, the supporting rod is arranged on the second door, and the pulley is arranged at the other end of the supporting rod.

Preferably, the bottom of the door frame is provided with a groove, and the pulley slides in the groove.

Preferably, the lower end faces of the second door and the first door are flush with the upper end face of the groove.

Preferably, be equipped with the inductor on the door frame, inductor and motor signal connection, the inductor can respond to the human body to send the signal for the motor, the motor can start.

Preferably, the sliding block is sleeved and slides on the slide way.

Preferably, the rotation of the chain can realize that the connecting rod drives the sliding blocks to slide oppositely.

Preferably, the first door and the second door are both made of materials with good fire resistance, high temperature resistance and heat insulation.

Preferably, the motor is a forward and reverse rotating motor.

The utility model adopts the above structure to gain beneficial effect as follows: the utility model provides a pair of fire door is prevented to quick open type has realized opening fast door one and door two through setting up switching device, and safe and reliable has guaranteed personnel sparse smoothness nature, and door one and door two can keep the switching when the state of opening, can not be because of external force collision or extrusion self-closing.

Drawings

Fig. 1 is a schematic view of the overall structure of a quick-opening fire door of the present invention;

fig. 2 is a side view of the sliding guide device of the quick-opening fire door of the present invention;

fig. 3 is a sectional view of the connection between the slider and the slide rail in fig. 1.

Wherein, 1, a door frame, 2, a slideway, 3, a first door, 4, a door shaft, 5, a second door, 6, an opening and closing device, 7, a sliding guide device, 8 and a chain wheel, 9, a chain, 10, a motor, 11, a connecting rod, 12, a sliding block, 13, a pin rod, 14, a support rod, 15, a pulley, 16, a groove, 17 and an inductor.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1-3, the present invention relates to a quick-opening fire door, which includes a door frame 1, a slide rail 2, a first door 3, a first door shaft 4, a second door 5, a switching device 6 and a sliding guide device 7, wherein the slide rail 2 is disposed on the door frame 1, the first door 3 is rotatably hinged on the door frame 1, the first door shaft 4 is disposed on the first door 3, the second door 5 is rotatably hinged on the first door shaft 4, the first door 3 and the second door 5 can be sealed when closed, the switching device 6 is disposed on the door frame 1 and slides on the slide rail 2 to be connected with the second door 5, and the sliding guide device 7 is disposed on the second door 5 and slides in the door frame 1; the opening and closing device 6 comprises a chain wheel 8, a chain 9, a motor 10, a connecting rod 11, a sliding block 12 and a pin rod 13, wherein the chain wheel 8 is provided with two groups and rotates on the door frame 1, the chain 9 is arranged on the chain wheel 8 in a transmission mode, the motor 10 is in power connection with one group of chain wheels 8, the connecting rod 11 is arranged on the chain 9, the sliding block 12 is arranged on the slide way 2 in a sliding mode and is connected with the connecting rod 11, the pin rod 13 is arranged on the sliding block 12 and rotates in the door second 5, the chain 9 drives the connecting rod 11, the connecting rod 11 drives the sliding block 12 to slide on the slide way 2, the door second 5 is pushed through the pin rod 13, the door second 5 and the door first 3 are folded at the door shaft 4, therefore the door first 3 and the door second 5 can be quickly opened, when the motor 10 is stopped, the position of the sliding block 12 on the slide way 2 is not moved, the state of the door second 5 can be locked, and the door can not be closed by being extruded by external force.

The sliding guide device 7 comprises a support rod 14 and a pulley 15, the support rod 14 is arranged on the second door 5, and the pulley 15 is arranged at the other end of the support rod 14.

The bottom of the doorframe 1 is provided with a groove 16, and the pulley 15 slides in the groove 16.

The lower end faces of the second door 5 and the first door 3 are flush with the upper end face of the groove 16.

The door frame 1 is provided with the inductor 17, the inductor 17 is in signal connection with the motor 10, the inductor 17 can induce a human body and send a signal to the motor 10, and the motor 10 can be started.

The sliding block 12 is sleeved and slides on the slideway 2.

The rotation of the chain 9 can realize the opposite sliding of the slide blocks 12 driven by the connecting rods 11.

The first door 3 and the second door 5 are made of materials with good fire resistance, high temperature resistance and heat insulation.

The motor 10 is a counter-rotating motor 10.

When the door is used specifically, a human body stands in front of the door frame 1, the sensor 17 senses the human body, the sensor 17 sends a signal to the motor 10, the motor 10 is started and drives the chain wheel 8 to rotate, the connecting rod 11 pulls the sliding block 12 to slide oppositely on the sliding way 2 under the transmission of the chain 9, the pin rod 13 can rotate in the door two 5 and pushes the door two 5 to extrude towards the door one 3 through the pin rod 13 in the sliding process, the door two 5 can be folded at the door shaft 4, meanwhile, the door one 3 rotates on the door frame 1, finally, the door two 5 and the door one 3 are folded to be parallel, the door opening action is realized, the pulley 15 always slides in the groove 16 in the folding and opening process of the door two 5, the door two 5 can be opened more smoothly, the motor 10 stops when the door one 3 and the door two 5 are in an opening state, the chain 9 also locks the position of the sliding block 12, at the time, the door two 5 cannot be closed due to extrusion collision of external force, and the smoothness of personnel evacuation is ensured.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a fire door is prevented to quick open type which characterized in that: the sliding rail is arranged on the door frame, the first door is hinged and rotatably arranged on the door frame, the second door is hinged and rotatably arranged on the first door, the first door and the second door can be sealed when the first door and the second door are closed, the opening and closing device is arranged on the door frame and slides on the sliding rail to be connected with the second door, and the sliding guide device is arranged on the second door and slides in the door frame; switching device includes sprocket, chain, motor, connecting rod, slider and pin rod, the sprocket is equipped with two sets ofly and rotates on the door frame, chain drive locates on the sprocket, the motor is connected with a set of sprocket power among them, the connecting rod is located on the chain, the slider slides and locates on the slide and be connected with the connecting rod, the pin rod is located on the slider and is rotated in door two.

2. A fire rated door as claimed in claim 1, characterised in that: the sliding guide device comprises a supporting rod and a pulley, the supporting rod is arranged on the second door, and the pulley is arranged at the other end of the supporting rod.

3. A fire rated door as claimed in claim 2, wherein: the bottom of door frame is equipped with the recess, the pulley slides in the recess.

4. A fire rated door as claimed in claim 3, wherein: the lower end faces of the second door and the first door are flush with the upper end face of the groove.

5. A fire rated door as claimed in claim 4, characterised in that: the door frame is provided with an inductor, and the inductor is in signal connection with the motor.

6. A fire rated door as claimed in claim 5, characterised in that: the sliding block is sleeved and slides on the slideway.

7. A fire rated door as claimed in claim 6, wherein: the rotation of the chain can realize that the connecting rod drives the sliding blocks to slide oppositely.

8. A fire rated door as claimed in claim 7, wherein: the first door and the second door are made of materials with good fire resistance, high temperature resistance and heat insulation.

9. A fire rated door as claimed in claim 8, wherein: the motor is a positive and negative rotation motor.