CN111236756B

CN111236756B - Door opening device for building evacuation door

Info

Publication number: CN111236756B
Application number: CN202010060480.6A
Authority: CN
Inventors: 方力炜
Original assignee: Wenzhou Polytechnic
Current assignee: Xingye Construction Engineering Group Co ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2021-04-16
Anticipated expiration: 2040-01-19
Also published as: CN111236756A

Abstract

The invention provides a building evacuation door opening device which comprises a door lock, a seat plate, an unlocking mechanism and a security mechanism, wherein the door lock comprises a lock body arranged on a door frame and a buckle box arranged on a door plate, the seat plate is fixedly arranged at the top of an evacuation channel, the unlocking mechanism comprises a striker, a telescopic rod, a transmission assembly and a first rope, the telescopic rod is rotatably arranged on the seat plate, the striker is connected to the lower end of the telescopic rod, one end of the first rope is connected with the lock body, the other end of the first rope is connected with the telescopic rod through the transmission assembly, when a user pushes the striker, the striker drives the telescopic rod to rotate, the telescopic rod further pulls the first rope through the transmission assembly, so that a lock tongue of the lock body is separated from the buckle box, the security mechanism comprises an air cylinder and a second rope, one end of the second rope is connected to an. According to the door opening device for the building evacuation door, when a fire disaster occurs, personnel can automatically open the door plate by touching the collision rod in the process of running to the evacuation door, and the safety is good.

Description

Door opening device for building evacuation door

Technical Field

The invention relates to the technical field of safety doors, in particular to a door opening device for an evacuation door of a building.

Background

For safety reasons, the building is provided with the necessary safe evacuation channels to guide people to evacuate to safe areas in the event of a hazard, while evacuation doors are usually provided in the closed position at the exit of the evacuation channels.

In order to rapidly open the evacuation door when a danger occurs, the published patent CN207177592U discloses a door opening device for an evacuation door of a building, which comprises a door frame, a door, a cylinder, a push rod, a connecting rod, a side plate, a fixed pulley, a steel wire rope and a weight; the door frame is hinged with the door, the door frame is provided with an air cylinder, the air cylinder is in driving connection with a push rod, the push rod is hinged with a connecting rod, and one end of the connecting rod is connected with the door; one side of the door frame is connected with a side plate, three fixed pulleys are fixed on the side plate and arranged in a triangular shape, a steel wire rope bypasses the three fixed pulleys, a heavy object is fixed at one end of the steel wire rope, and the other end of the steel wire rope is fixed with a door. However, in the daily use process, when the fire extinguishing system is powered off accidentally, the evacuation door can be opened randomly, and the anti-theft safety is low.

Disclosure of Invention

The invention aims to provide a building evacuation door opening device, which solves the problems that the existing building evacuation door opening device can be opened randomly when a fire-fighting system is powered off accidentally and the anti-theft safety is low in the daily use process.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a building evacuation door opening door device, includes lock, bedplate, unlocking mechanism and security protection mechanism, the lock includes the lock body that sets up on the door frame and sets up the knot box on the door plant, the bedplate sets firmly at evacuation passageway's top, unlocking mechanism includes lance, telescopic link, drive assembly and rope one, the telescopic link rotates to be set up on the bedplate, the lance is connected to be set up the lower extreme of telescopic link, the one end of rope one is connected with the lock body, the other end of rope one is connected with the telescopic link through the drive assembly, when the user promotes the lance, the lance drives the telescopic link rotates, and then the telescopic link passes through the drive assembly tractive rope one, makes the spring bolt of lock body with the knot box separation, security protection mechanism includes cylinder and rope two, the one end of rope two is connected on the output lever of cylinder, the other end of the rope II is connected to the telescopic rod.

Further, the transmission assembly comprises a speed-increasing gear set and a wire wheel, the speed-increasing gear set is arranged on the seat plate, the telescopic rod is coaxially connected to an input shaft of the speed-increasing gear set, the wire wheel is connected to an output shaft of the speed-increasing gear set, and the rope is wound on the wire wheel.

Still further, the unlocking mechanism further comprises a return spring which is connected and arranged between the seat plate and the speed increasing gear set.

Furthermore, the unlocking mechanism further comprises a protection tube, and the protection tube is sleeved outside the first rope.

Further, security protection mechanism still includes a pair of parallel arrangement's deflector, the telescopic link slides and sets up between a pair of deflector.

Furthermore, the lock body further comprises a lock shell, a panel and an elastic assembly, the panel is connected and arranged on the side face of the lock shell, a lock cavity is formed between the panel and the lock shell, the lock tongue is arranged in the lock cavity in a sliding mode, the elastic assembly is connected and arranged between the rear end of the lock tongue and the lock shell, and the front end of the lock tongue can penetrate through a through hole in the panel to be inserted into the buckle box.

Furthermore, the elastic component comprises a diamond four-bar mechanism and an extension spring, the diamond four-bar mechanism comprises a first connecting bar, a second connecting bar, a third connecting bar and a fourth connecting bar, two ends of the first connecting bar are respectively hinged with one end of the second connecting bar and one end of the third connecting bar, two ends of the fourth connecting bar are respectively hinged with the other end of the second connecting bar and the other end of the third connecting bar, the first connecting bar is rotatably connected with the hinged part of the second connecting bar on the lock shell, the third connecting bar is rotatably connected with the hinged part of the fourth connecting bar on the lock tongue, one end of the extension spring is connected with the hinged part of the second connecting bar and the fourth connecting bar, and the other end of the extension spring is connected with the hinged part of the first connecting bar and the third connecting bar.

Furthermore, the first rope is connected to the hinge joint of the second connecting rod and the fourth connecting rod.

Furthermore, a slide rail is arranged in the lock cavity, a damping rubber strip is mounted on the slide rail, the lock tongue is arranged on the slide rail in a sliding mode, and the damping rubber strip is located between the lock tongue and the slide rail.

Furthermore, the door frame further comprises an elastic telescopic rod, one end of the elastic telescopic rod is hinged to the door frame, and the other end of the elastic telescopic rod is hinged to the door plate.

According to the technical scheme, the invention has the following beneficial effects:

in the invention, when a fire disaster occurs, the fire fighting system is powered off, the air cylinder is powered off, the telescopic rod automatically extends under the action of gravity to enable the height of the striker to be reduced, then, in the process that a person runs to the evacuation door, the human body collides with the striker to enable the spring bolt to be separated from the buckle box, and further, the door panel is automatically opened outwards under the action of the elastic telescopic rod, so that the person can directly rush out of the evacuation door when running to the evacuation door, and the time is saved; and at ordinary times, the door lock is in a closed state, when personnel need to pass through the evacuation door, the first rope can be manually lifted, so that the spring bolt is separated from the buckle box, then, the personnel quickly pass through the evacuation door and close the door panel, and meanwhile, the spring bolt is slowly inserted into the buckle box again under the combined action of the elastic assembly and the damping rubber strip, so that the door panel is closed.

The invention is described in further detail below with reference to the figures and the detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of another embodiment of the present invention.

Fig. 3 is a partial structural schematic diagram of the present invention.

Fig. 4 is a sectional view schematically showing the door lock of the present invention in a closed state.

Fig. 5 is a sectional view schematically showing the door lock according to the present invention in an opened state.

Fig. 6 is a schematic view of a partial structure of a joint between a bolt and a slide rail of the door lock of the present invention.

Description of reference numerals: the lock comprises a door frame 10, a door panel 20, a lock body 1, a lock shell 11, an ear plate 111, a wire hole 112, a panel 12, a through hole 121, a bolt 13, a stop 131, a tailstock 132, a chute 133, a diamond-shaped four-bar mechanism 14, a first connecting bar 141, a second connecting bar 142, a third connecting bar 143, a fourth connecting bar 144, a tension spring 15, a slide rail 16, an embedding groove 161, a first guide wheel 17, a limit block 18, a damping rubber strip 19, a connecting part 191, a buckle box 2, a seat plate 3, an unlocking mechanism 4, a striker 41, a telescopic rod 42, a large gear 43, a small gear 44, a reset spring 45, a wire wheel 46, a first rope 47, a second guide wheel 48, a protective pipe 49, a security mechanism 5, an air cylinder 51, a second rope 52, a third.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

The invention is further explained with reference to fig. 1 to 6, and as shown in fig. 1 and 2, the door opening device for the building evacuation door comprises a door lock, a seat plate 3, an unlocking mechanism 4, a security mechanism 5 and an elastic telescopic rod 6, wherein the door lock comprises a lock body 1 arranged on a door frame 10 and a buckle box 2 arranged on a door plate 20, the seat plate 3 is fixedly arranged at the top of an evacuation channel, one end of the elastic telescopic rod 6 is hinged on the door frame 10, the other end of the elastic telescopic rod 6 is hinged on the door plate 20, and when the door lock is in an open state, the door plate 20 can be automatically opened under the action of the elastic telescopic rod 6.

As shown in fig. 2, 4 and 5, the lock body 1 further includes a lock case 11, a panel 12 and an elastic component, the lock case 11 is fixedly connected to the door frame 10, the panel 12 is connected to and disposed on a side surface of the lock case 11, a lock cavity is formed between the panel 12 and the lock case 11, the bolt 13 is slidably disposed in the lock cavity, a pair of stoppers 131 is disposed at a tail portion of the bolt 13, the elastic component includes a diamond-shaped four-bar linkage 14 and a tension spring 15, the diamond-shaped four-bar linkage 14 includes a first connecting bar 141, a second connecting bar 142, a third connecting bar 143 and a fourth connecting bar 144, two ends of the first connecting bar 141 are respectively hinged to one end of the second connecting bar 142 and one end of the third connecting bar 143, two ends of the fourth connecting bar 144 are respectively hinged to the other ends of the second connecting bar 142 and the third connecting bar 143, a hinge point of the first connecting bar 141 and the second connecting bar 142 is rotatably connected to an ear plate 111 in the lock cavity, a hinge point, one end of the extension spring 15 is connected to the hinge of the second connecting rod 142 and the fourth connecting rod 144, the other end of the extension spring 15 is connected to the hinge of the first connecting rod 141 and the third connecting rod 143, one end of the first rope 47 extends into the lock cavity from the wire hole 112 on the lock body 1 and then is connected to the hinge of the second connecting rod 142 and the fourth connecting rod 144 by bypassing the first guide wheel 17, the first guide wheel 17 is rotatably disposed in the lock cavity, when the door lock needs to be opened, the first rope 47 is pulled, the first rope 47 drives the bolt 13 to retract into the lock cavity through the diamond-shaped four-bar mechanism 14 to be separated from the buckle box 2, when the door lock is closed, the pulling force applied to the first rope 47 is removed, under the action of the elastic force of the extension spring 15, the front end of the bolt 13 passes through the through hole 121 on the panel 12 and is inserted into the buckle box 2, and.

As shown in fig. 4, 5, and 6, a pair of parallel slide rails 16 are disposed in the lock cavity, T-shaped slide grooves 133 corresponding to the slide rails 16 are disposed on the latch 13, and a limiting block 18 for limiting is disposed at the tail of the slide rail 16.

As shown in fig. 4, 5 and 6, the slide rail 16 is provided with a damping rubber strip 19, the connecting portion 191 of the damping rubber strip 19 is embedded in the embedding groove 161 of the slide rail 16, the damping rubber strip 19 is located between the latch 13 and the slide rail 16, and the arrangement of the damping rubber strip 19 increases the friction force between the latch 13 and the slide rail 16, so as to delay the time of inserting the latch 13 into the buckle box 2 under the action of the elastic component.

As shown in fig. 1 and 3, the unlocking mechanism 4 includes a striking rod 41, an expansion link 42, a transmission assembly, a return spring 45 and a first rope 47, the transmission assembly includes a speed-increasing gear set and a wire wheel 46, the speed-increasing gear set includes a large gear 43 and a small gear 44 which are engaged with each other, the large gear 43 and the small gear 44 are both rotatably disposed on the seat plate 3, the expansion link 42 is coaxially connected below the large gear 43, the wire wheel 46 is coaxially connected to the small gear 44, the striking rod 41 is horizontally connected to the lower end of the expansion link 42, one end of the first rope 47 is wound on the wire wheel 46, the other end of the first rope 47 is connected to the lock body 1 by bypassing the second guide wheel 48, the second guide wheel 48 is fixedly disposed at the top of the evacuation channel, the return spring 45 is sleeved on the rotating shaft of the large gear 43, one end of the return spring 45 is connected to the, the striking rod 41 drives the telescopic rod 42 to rotate, and then the telescopic rod 42 drives the wire wheel 46 to wind the first traction rope 47 through the large gear 43 and the small gear 44 which are meshed with each other.

As shown in fig. 2, in order to prevent children from accidentally touching the first rope 47 to unlock the door lock, a protective tube 49 is sleeved on the outside of the first rope 47, and the protective tube 49 is fixed to the lock case 11.

As shown in fig. 1 and 3, the security mechanism 5 includes a cylinder 51 and a second rope 52, one end of the second rope 52 is connected to an output rod of the cylinder 51, the other end of the second rope 52 bypasses a third guide wheel 53 and is connected to the telescopic rod 42, the third guide wheel 53 is arranged on the seat plate 3, the cylinder 51 is powered on at ordinary times, the output rod of the cylinder 51 pulls the lower end of the telescopic rod 42 through the second rope 52, so that the striker 41 is kept at a higher position, personnel are prevented from accidentally touching the striker 41 during walking, when the fire protection system is powered off, the cylinder 51 is powered off, the telescopic rod 42 automatically extends under the action of gravity, and the height of the striker 41 is lowered.

As shown in fig. 1 and 3, the security mechanism 5 further includes a pair of guide plates 54 arranged in parallel, the telescopic rod 42 is slidably disposed between the pair of guide plates 54, and the guide plates 54 guide and protect the telescopic rod 42.

As shown in fig. 1 and 2, when a fire occurs, the fire protection system is powered off, the air cylinder 51 is powered off, the telescopic rod 42 automatically extends under the action of gravity, so that the height of the striker 41 is reduced, then, in the process that a person runs to an evacuation door, the person collides with the striker 41 to rotate the telescopic rod 42, the telescopic rod 42 pulls the rope I47 through the transmission assembly, so that the latch 13 is separated from the buckle box 2, and the door panel 20 is automatically opened outwards under the action of the elastic telescopic rod 6, so that the person can directly rush out of the evacuation door when running to the evacuation door, and the time is saved; at ordinary times, the door lock is in a closed state, the air cylinder 51 is powered on, the output rod of the air cylinder 51 pulls the telescopic rod 42 through the second rope 52, so that the striker 41 is kept at a higher position, when a person needs to pass through the evacuation door, the first rope 47 can be manually lifted, the bolt 13 is separated from the buckle box 2, the door panel 20 is automatically opened, then the person quickly passes through the evacuation door and closes the door panel 20, and meanwhile, the bolt 13 is slowly inserted into the buckle box 2 again under the combined action of the elastic component and the damping rubber strip 19, so that the door panel 20 is closed.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a building evacuation door opening door device, characterized in that, includes lock, bedplate (3), unlocking mechanism (4) and security protection mechanism (5), the lock is including setting up lock body (1) on door frame (10) and setting up box (2) of detaining on door plant (20), bedplate (3) set firmly at evacuation passageway's top, unlocking mechanism (4) include lance (41), telescopic link (42), drive assembly and rope (47), telescopic link (42) rotate to be set up on bedplate (3), lance (41) are connected and are set up the lower extreme of telescopic link (42), the one end of rope (47) with lock body (1) are connected, the other end of rope (47) pass through drive assembly with telescopic link (42) are connected, when the user promoted lance (41), lance (41) orders about telescopic link (42) rotate, then the telescopic rod (42) pulls the first rope (47) through the transmission assembly to enable the bolt (13) of the lock body (1) to be separated from the buckle box (2), the security mechanism (5) comprises a cylinder (51) and a second rope (52), one end of the second rope (52) is connected to an output rod of the cylinder (51), the other end of the second rope (52) is connected to the telescopic rod (42), the transmission assembly comprises a speed-increasing gear set and a wire wheel (46), the speed-increasing gear set is arranged on the seat plate (3), the telescopic rod (42) is coaxially connected to an input shaft of the speed-increasing gear set, the wire wheel (46) is connected to an output shaft of the speed-increasing gear set, the first rope (47) is wound on the wire wheel (46), and the unlocking mechanism (4) further comprises a reset spring (45), reset spring (45) are connected and are set up bedplate (3) with between the speed increasing gear train, unlocking mechanism (4) still include protection tube (49), protection tube (49) cover is established the outside of rope (47).

2. The door opening device for building evacuation doors according to claim 1, wherein the security mechanism (5) further comprises a pair of guide plates (54) arranged in parallel, and the telescopic rod (42) is slidably arranged between the pair of guide plates (54).

3. The door opening device for the building evacuation door according to claim 1, wherein the lock body (1) further comprises a lock case (11), a panel (12) and an elastic component, the panel (12) is connected and arranged at the side of the lock case (11), a lock cavity is formed between the panel (12) and the lock case (11), the bolt (13) is slidably arranged in the lock cavity, the elastic component is connected and arranged between the rear end of the bolt (13) and the lock case (11), and the front end of the bolt (13) can pass through the through hole (121) on the panel (12) and be inserted into the buckle box (2).

4. The door opening device for the building evacuation door according to claim 3, wherein the elastic assembly comprises a diamond-shaped four-bar linkage (14) and an extension spring (15), the diamond-shaped four-bar linkage (14) comprises a first bar (141), a second bar (142), a third bar (143) and a fourth bar (144), two ends of the first bar (141) are respectively hinged with one end of the second bar (142) and one end of the third bar (143), two ends of the fourth bar (144) are respectively hinged with the other end of the second bar (142) and the other end of the third bar (143), a hinge of the first bar (141) and the second bar (142) is rotatably connected to the lock case (11), a hinge of the third bar (143) and the fourth bar (144) is rotatably connected to the lock tongue (13), and one end of the extension spring (15) is connected to a hinge of the second bar (142) and the fourth bar (144), the other end of the extension spring (15) is connected to the hinged part of the first connecting rod (141) and the third connecting rod (143).

5. The door opening device for building evacuation doors according to claim 4, wherein the first rope (47) is connected at the hinge joint of the second link (142) and the fourth link (144).

6. The door opening device for the building evacuation door according to claim 3, wherein a slide rail (16) is arranged in the lock cavity, a damping rubber strip (19) is mounted on the slide rail (16), the latch (13) is slidably arranged on the slide rail (16), and the damping rubber strip (19) is located between the latch (13) and the slide rail (16).

7. The door opening device for building evacuation doors according to claim 1, further comprising an elastic telescopic rod (6), wherein one end of the elastic telescopic rod (6) is hinged to the door frame (10), and the other end of the elastic telescopic rod (6) is hinged to the door panel (20).