CN111706228A

CN111706228A - Reverse opening type safety escape door

Info

Publication number: CN111706228A
Application number: CN202010691763.0A
Authority: CN
Inventors: 马明臻
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2020-09-25

Abstract

The invention aims to solve the problem of providing a back-opening type safe escape door, which can quickly and reversely open a door body to escape in case of emergency, and avoid the problem that the escape cannot be realized because a lock cylinder cannot be smoothly opened. The lock comprises a door body and a door frame, wherein a lock cylinder is arranged on the left side of the door body, and a lock point block matched with the lock cylinder is arranged on the left side of the door frame; the right ends of the upper frame and the lower frame of the door frame are respectively provided with a shaft hole, and the upper edge and the lower edge of the door body are respectively provided with a pin shaft which is correspondingly inserted into the shaft holes and can relatively rotate; the door body is internally provided with a joint control assembly for controlling the two pin shafts to be separated from the shaft holes along the vertical direction.

Description

Reverse opening type safety escape door

Technical Field

The invention relates to the technical field of installation doors, in particular to a back-opening type safe escape door.

Background

The doors installed in the prior art have the performances of theft prevention and safety, and are widely applied to places such as building houses, warehouses and the like. Taking a single-door as an example, the installed door mainly comprises a door body and a door frame, wherein a lock cylinder is arranged on the left side edge of the door body, and a lock point block matched with the lock cylinder is arranged on the left side edge of the door frame. The lock core is generally a manual lock core, reverse locking can be performed through the inner side of the door, and the lock rod of the lock core is directly inserted into the lock point block. Along with the enhancement of the anti-theft means of people, the anti-theft function of the installation door is improved, the lock core structure is improved, the lock points of the lock point blocks are increased, abnormal opening under certain conditions can be resisted within a certain time, and the anti-theft lock has certain safety protection performance.

People in the house, when meetting proruption situation, condition such as conflagration, earthquake lead to the door to receive the extrusion micro deformation, lock core and lock point block design itself are accurate, cause the dead bad consequence of card easily to be unfavorable for the people in the house to flee fast. Meanwhile, some lock cylinders are complex in structure, operation is complex when the lock cylinders are reversely locked, and people are easy to delay escape time and cause danger when weak groups such as old people and children are easy to scare and cannot smoothly open the door to escape when meeting emergency situations.

Disclosure of Invention

The invention aims to solve the problem of providing a back-opening type safe escape door, which can quickly and reversely open a door body to escape in case of emergency, and avoid the problem that the escape cannot be realized because a lock cylinder cannot be smoothly opened.

The invention is realized by the following technical scheme:

a back-opening type safe escape door comprises a door body and a door frame, wherein a lock cylinder is arranged on the left side edge of the door body, and a lock point block matched with the lock cylinder is arranged on the left side edge of the door frame;

the door is characterized in that shaft holes are respectively formed in the right ends of the upper frame and the lower frame of the door frame, and pin shafts which are correspondingly inserted into the shaft holes and can relatively rotate are respectively arranged on the upper side and the lower side of the door body;

and a joint control assembly for controlling the two pin shafts to be separated from the shaft hole along the vertical direction is arranged in the door body.

Furthermore, a mounting cavity I is formed in the door body, the joint control assembly comprises a joint control main shaft and two lifting control units, and the joint control main shaft is arranged in the mounting cavity I in a rotating mode; the two lifting control units are respectively and correspondingly installed at the upper end and the lower end of the joint control main shaft, and the two lifting control units are correspondingly connected with the two pin shafts.

Furthermore, every lift control unit all includes lift sleeve and horizontal round bar, the top of allies oneself with accuse main shaft is equipped with the microscler through-hole that distributes along lateral wall circumference curved surface in the slant, horizontal round bar passes microscler through-hole and transversely install in the lift sleeve, lift sleeve outside profile is square, lift telescopic top is connected the round pin axle.

Further, a roller in contact with the long through hole is sleeved on the transverse round rod; and two end parts of the joint control main shaft are respectively sleeved with a compression spring, one end of each compression spring is fixed to the bottom of the lifting sleeve, and the other end of each compression spring is fixedly connected to the door body.

Furthermore, a sliding cavity for matching installation of the locking point block is formed in the left side of the door frame, the locking point block can move transversely in the sliding cavity, and locking mechanisms are respectively arranged between the upper side surface and the lower side surface of the locking point block and the sliding cavity; two trigger rod mechanisms linked with the joint control main shaft are arranged in the door body, and the two trigger rod mechanisms can unlock the two locking mechanisms correspondingly.

Further, locking mechanism is including establishing the locking chamber of lock point block, the locking intracavity is equipped with ability lateral shifting's piston rod, the piston rod with be equipped with reset spring between the left end in locking chamber, the last side of piston rod with be equipped with the locking ball between the chamber wall in locking chamber, be equipped with the round hole on the chamber wall in locking chamber, the last side wall in slip chamber be equipped with can with the arc concave surface I of round hole position coincidence, the last sphere of locking ball can pass the round hole and with concave surface I coincide, the last side right branch of piston rod is equipped with arc concave surface II.

Furthermore, a plurality of tension springs are arranged between the left side surface of the locking point block and the left side surface of the interior of the sliding cavity; the diameter of the locking ball is larger than the aperture of the round hole.

Furthermore, the trigger lever mechanism comprises a trigger lever transversely inserted in the door body, the trigger lever can transversely reciprocate, the left end of the trigger lever can touch the piston rod, the right end of the trigger lever is hinged with a transition lever, and the other end of the transition lever is hinged on the circumferential wall of the joint control main shaft.

Further, a steel cable pipe is transversely arranged at the upper part in the door body, a limiting block capable of moving transversely is arranged in the steel cable pipe, a steel cable rope is fixed on the limiting block, and one end of the steel cable rope extends out of the steel cable pipe and is fixed on the door frame.

Furthermore, an openable window is arranged on the inner side face of the door body, a rotating handle fixedly connected with the joint control main shaft is arranged in the window, and the rotating amplitude of the rotating handle is 0-90 degrees.

Compared with the prior art, the invention has the following beneficial effects:

1. under normal condition, round pin axle and shaft hole normal running fit act as the hinge structure of the door body, realize normally opening. When the lock core cannot be opened smoothly in emergency, the upper pin shaft and the lower pin shaft are separated from the shaft hole of the door frame and are discharged by controlling the joint control assembly, so that the door body can be opened reversely, and people can conveniently and quickly escape;

2. the joint control assembly comprises a joint control main shaft and two lifting control units, and the joint control main shaft is rotated to drive the two lifting control units to enable the upper pin shaft and the lower pin shaft to move up and down;

3. the two trigger rod mechanisms can unlock the two locking mechanisms respectively in a corresponding manner, when an emergency needs to escape, the joint control main shaft is rotated to simultaneously trigger the two trigger rod mechanisms to unlock the two locking mechanisms, and a lock point block moves inwards in the sliding cavity under the action of the tension spring, so that the lock point block is separated from the lock cylinder; by the design, the door body is ensured to be separated and opened from the door frame more easily, and the escape is facilitated;

4. the invention has compact structure and reasonable design, and can be reset for multiple emergency use.

Drawings

FIG. 1 is a schematic view of the internal structure of a back-opening type safety escape door according to the present invention;

FIG. 2 is a schematic diagram of the internal structure of the lift control unit according to the present invention;

FIG. 3 is a schematic view of the operating state of the lift control unit according to the present invention;

FIG. 4 is a schematic view of the internal structure of the locking mechanism of the present invention;

FIG. 5 is a schematic view of the locking mechanism of the present invention in an operating state;

FIG. 6 is a schematic view of the trigger lever mechanism of the present invention in the direction A-A;

FIG. 7 is a schematic view of a cable structure at an upper portion of the door body according to the present invention;

in the figure: 1. door body, 2, door frame, 3, shaft hole, 4, round pin axle, 5, allies oneself with accuse main shaft, 6, lift control unit, 61, lift sleeve, 62, horizontal round bar, 63, compression spring, 64, microscler through-hole, 7, rotatory handle, 8, trigger bar mechanism, 81, trigger bar, 82, transition rod, 9, locking mechanism, 91, locking chamber, 92, piston rod, 93, reset spring, 94, locking ball, 95, round hole, 96, arc concave surface I, 97, arc concave surface II, 10, lock core, 11, lock point block, 12, extension spring, 13, cable wire pipe, 14, stopper, 15, steel cable rope.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present invention, it is to be understood that the terms "front", "rear", "left", "right", "upper", "lower", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and 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.

As shown in fig. 1, taking a single door as an example, the embodiment discloses a back-opening type safety escape door, which mainly includes a door body 1, a door frame 2, a joint control assembly, a steel cable pipe 13, two trigger lever mechanisms 8 and two locking mechanisms 9. Since the door body 1 is normally opened from the left side of the single door, the key cylinder 10 is generally attached to the left side of the door body 1. Because the thickness of the door body 1 is 10-15cm, the joint control assembly and the two trigger rod mechanisms 8 are both arranged in the door body 1 for the sake of attractive appearance.

The door is characterized in that shaft holes 3 with the depth of 2cm are respectively processed at the right ends of an upper frame and a lower frame of the door frame 2, and pin shafts 4 which can be correspondingly inserted into the shaft holes 3 and can relatively rotate are respectively installed on the upper edge and the lower edge of the door body 1 in a matched manner. The upper pin shaft 4 and the lower pin shaft 4 are symmetrically distributed and synchronously controlled by a joint control assembly, and the joint control assembly comprises a joint control main shaft 5 and two lifting control units 6. A mounting cavity I with a circular cross section is machined in the door body 1, and the joint control main shaft 5 is a stainless steel round rod and is assembled in the mounting cavity I in a rotating mode through two bearing assemblies. An openable window is installed on the inner side face of the door body 1, a rotating handle 7 fixedly connected with the joint control main shaft 5 is arranged in the window, and the rotating amplitude of the rotating handle 7 is 0-90 degrees. By the design, the window is opened, and the joint control main shaft 5 can be controlled to rotate by holding the rotating handle 7 with a hand.

As shown in fig. 2-3, two lifting control units 6 are respectively installed at the upper and lower ends of the joint control main shaft 5 and connected to the pin 4 for control. The lifting control unit 6 positioned at the upper end of the joint control main shaft 5 comprises a lifting sleeve 61, a transverse round rod 62 and a compression spring 63, the outer contour of the lifting sleeve 61 is square, the door body 1 is internally provided with a matched installation cavity II of the lifting sleeve 61, the cross section of the installation cavity II is square, and the lifting sleeve 61 can only move in the vertical direction and cannot rotate round. The top end of the lifting sleeve 61 is fixedly connected with the pin shaft 4, the top end of the combined control main shaft 5 is provided with a long through hole 64 which is distributed obliquely upwards along the circumferential curved surface of the side wall 1/4, the transverse round rod 62 penetrates through the long through hole 64 and is transversely installed in the lifting sleeve 61, and the transverse round rod 62 is sleeved with a roller which is in contact with the long through hole 64. The compression spring 63 is sleeved at the end of the joint control main shaft 5, one end of the compression spring 63 is fixed at the bottom of the lifting sleeve 61, and the other end of the compression spring 63 is fixedly connected to the door body 1. The elastic force of the compression spring 63 always acts upward on the lifting sleeve 61, serving as a support. Because the two lifting control units 6 are distributed vertically and symmetrically and have the same structure, only the lifting control unit 6 above is described in detail here, and the lifting control unit 6 at the lower end of the joint control main shaft 5 is not described in detail.

The two trigger rod mechanisms 8 are symmetrically distributed in the vertical and horizontal directions and can unlock the two locking mechanisms 9 correspondingly. As shown in fig. 6, the trigger lever mechanism 8 includes a trigger lever 81 transversely inserted in the door body 1, the trigger lever 81 can transversely reciprocate relative to the door body 1, a transition lever 82 is hinged to the right end of the trigger lever 81, and the other end of the transition lever 82 is hinged to the circumferential wall of the joint control main shaft 5. When the joint control main shaft 5 can be controlled to rotate by holding the rotating handle 7 by a hand, the transition rod 82 drives the trigger rod 81 to move transversely.

As shown in fig. 4-5, a lock point block 11 matched with the lock cylinder 10 is installed on the left side of the door frame 2, a sliding cavity matched with the lock point block 11 is formed in the left side of the door frame 2, the lock point block 11 can transversely move in the sliding cavity, and two tension springs 12 are arranged between the left side face of the lock point block 11 and the inner left side face of the sliding cavity. And locking mechanisms 9 are respectively arranged between the upper side surface and the lower side surface of the locking point block 11 and the sliding cavity. The locking mechanism 9 located above the locking point block 11 includes a locking cavity 91 fixed to the upper side of the locking point block 11. The locking chamber 91 is internally fitted with a piston rod 92 capable of moving transversely, a return spring 93 is installed between the left end of the locking chamber 91 and the piston rod 92, the upper side surface of the piston rod 92 is matched with a locking ball 94 with the diameter of 5mm between the chamber walls of the locking chamber 91, a round hole 95 with the diameter of 4mm is processed on the chamber wall of the locking chamber 91, an arc concave surface I96 capable of coinciding with the round hole 95 is processed on the upper side wall of the sliding chamber, the upper spherical surface of the locking ball 94 can penetrate through the round hole 95 and be matched with the concave surface I, and an arc concave surface II 97 is processed on the right section of the upper side surface of the piston rod 92. Under the normal condition, locking ball 94 is under piston rod 92's effect, its sphere blocks in arc concave I96 all the time, thereby it is fixed to realize the 11 relative slip chambeies in lock point block, transversely stretch out the top to left when the trigger lever action and turn left 2mm at piston rod 92's right-hand member, thereby make piston rod 92 overcome reset spring 93's resistance turn left displacement, locking ball 94 just falls into arc concave II 97, locking ball 94's last sphere breaks away from arc concave II 97, under extension spring 12's effect, lock point block 11 moves left fast, thereby make the lock point break away from lock core 10, realize the whole unblock of door body 1, conveniently open door body 1 wholly and break away from door frame 2, flee fast. Since the two locking mechanisms 9 are distributed vertically and symmetrically and have the same structure, only the upper locking mechanism 9 needs to be described in detail herein, and the locking mechanism 9 located below the locking point block 11 is not described in detail.

As shown in fig. 7, a steel cable pipe 13 is transversely arranged at the upper part in the door body, a limiting block 14 is matched in the steel cable pipe 13, the limiting block 14 can only transversely move in the steel cable pipe 13, and an auxiliary spring is arranged between the left end of the steel cable pipe and the limiting block, so that the buffering and resetting effects can be achieved. A steel cable rope 15 with the length of 50cm is fixed on the limiting block 14, and one end of the steel cable rope 15 extends out of the steel cable pipe 13 and is fixed on the door frame. After the door body is unlocked from the door frame, the door body can be prevented from falling to cause danger under the action of the steel cable.

The specific working process of the back-opening type safety escape door during escape is as follows:

in an emergency situation, when the lock cylinder cannot be normally opened, the window on the inner side of the door body is opened, the rotary handle is held by a hand to control the joint control main shaft to rotate by 90 degrees, and at the moment, in the two lifting control units, the long through hole and the transverse round rod are matched to move relatively, so that the lifting sleeve can move, and the two pin shafts are controlled to be synchronously separated from the shaft holes of the door frame;

simultaneously, when the joint control main shaft is rotated, the trigger rods are driven to transversely move through the transition rods, the two trigger rods simultaneously touch the piston rods of the two locking mechanisms to generate leftward displacement, so that the locking balls just fall into the arc-shaped concave surface II, the locking point blocks are integrally unlocked and move leftward under the action of the tension springs, the locking balls are separated from the lock cylinders, the door body is completely unlocked, and a user directly opens the door body, so that escape can be realized.

Claims

1. A back-opening type safe escape door comprises a door body and a door frame, wherein a lock cylinder is arranged on the left side edge of the door body, and a lock point block matched with the lock cylinder is arranged on the left side edge of the door frame;

2. The back-opening type safety escape door according to claim 1, wherein a mounting cavity I is arranged inside the door body, the joint control assembly comprises a joint control main shaft and two lifting control units, and the joint control main shaft is rotatably mounted in the mounting cavity I; the two lifting control units are respectively and correspondingly installed at the upper end and the lower end of the joint control main shaft, and the two lifting control units are correspondingly connected with the two pin shafts.

3. The back-opening type safety escape door according to claim 2, wherein each of the lifting control units comprises a lifting sleeve and a horizontal round bar, the top end of the joint control main shaft is provided with an elongated through hole distributed obliquely upwards along the circumferential curved surface of the side wall, the horizontal round bar passes through the elongated through hole and is transversely installed in the lifting sleeve, the outer contour of the lifting sleeve is square, and the top end of the lifting sleeve is connected with the pin shaft.

4. The back-opening type safety escape door according to claim 3, wherein the transverse round bar is sleeved with a roller contacting the elongated through hole; and two end parts of the joint control main shaft are respectively sleeved with a compression spring, one end of each compression spring is fixed to the bottom of the lifting sleeve, and the other end of each compression spring is fixedly connected to the door body.

5. The back-opening type safety escape door according to claim 2, wherein a sliding cavity is formed at the left side of the door frame for installing the locking point block, the locking point block can move transversely in the sliding cavity, and locking mechanisms are respectively arranged between the upper side surface and the lower side surface of the locking point block and the sliding cavity; two trigger rod mechanisms linked with the joint control main shaft are arranged in the door body, and the two trigger rod mechanisms can unlock the two locking mechanisms correspondingly.

6. The back-opening type safety escape door according to claim 5, wherein the locking mechanism comprises a locking cavity arranged in the locking point block, a piston rod capable of moving transversely is arranged in the locking cavity, a reset spring is arranged between the piston rod and the left end of the locking cavity, a locking ball is arranged between the upper side surface of the piston rod and the cavity wall of the locking cavity, a round hole is arranged on the cavity wall of the locking cavity, an arc-shaped concave surface I capable of coinciding with the round hole is arranged on the upper side wall of the sliding cavity, the upper spherical surface of the locking ball can penetrate through the round hole and coincide with the concave surface I, and an arc-shaped concave surface II is arranged at the right section of the upper side surface of the piston rod.

7. The back-opening type safety escape door according to claim 6, wherein a plurality of tension springs are provided between the left side surface of the locking point block and the left side surface of the inside of the sliding chamber; the diameter of the locking ball is larger than the aperture of the round hole.

8. The back-opening type safety escape door according to claim 6, wherein the triggering rod mechanism comprises a triggering rod transversely inserted into the door body, the triggering rod can transversely reciprocate, the left end of the triggering rod can touch the piston rod, the right end of the triggering rod is hinged with a transition rod, and the other end of the transition rod is hinged on the circumferential wall of the joint control main shaft.

9. The back-opening type safety escape door according to claim 6, wherein a steel cable pipe is transversely disposed at an upper portion inside the door body, a limiting block capable of moving transversely is disposed inside the steel cable pipe, a steel cable rope is fixed to the limiting block, and one end of the steel cable rope extends out of the steel cable pipe and is fixed to the door frame.

10. The back-opening type safety escape door according to any one of claims 2 to 9, wherein an openable window is formed in an inner side surface of the door body, a rotating handle fixedly connected with the joint control main shaft is arranged in the window, and the rotating amplitude of the rotating handle is 0-90 °.