CN111379510B

CN111379510B - Telescopic safety door

Info

Publication number: CN111379510B
Application number: CN202010246611.XA
Authority: CN
Inventors: 张兰芳; 纪娟娟; 袁圆; 张毅凡
Original assignee: Anqing Normal University
Current assignee: Shanxi Andhra Swiss Civil Defense Equipment Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2021-06-29
Anticipated expiration: 2040-03-31
Also published as: CN111379510A

Abstract

The invention provides a telescopic safety door, which comprises a door frame and a door leaf hinged on the door frame, wherein the door leaf sequentially comprises an outer door plate, an inner core and an inner door plate along the thickness direction, the inner core comprises a side edge hinged with the door frame and a telescopic door core, and the telescopic door core is unfolded to be abutted and matched with three surfaces of an inner ring of the door frame except for a hinged surface in a normal use state; when the door is in a contraction state, the telescopic door core is not in contact with the inner ring of the door frame. The telescopic safety door provided by the invention has the advantages that: when in normal use, the expansion door core is unfolded to be matched with other three surfaces except the hinged surface of the inner ring of the door frame, so that the isolation of the inner space and the outer space is realized, the smoke infiltration is prevented, and when in a contraction state, the expansion door core is not in contact with the inner ring of the door frame, so that the door leaf can be ensured to be normally opened under the condition that the door frame 1 deforms, and the safety is improved.

Description

Telescopic safety door

Technical Field

The invention relates to the technical field of safety doors, in particular to a telescopic safety door.

Background

The door that general place used among the prior art mainly has two problems, and first is there is the clearance between door frame and the door plant, and smog can get into or leave the room from the clearance when the condition such as conflagration takes place, can't realize the effective isolation in two spaces through the door. The second problem is opposite to the above problem, the door frame and the door plate are tightly matched, and the problem can cause that the opening and closing of the door by a user are not changed, large noise is generated when the door is opened and closed vigorously, and certain damage is possibly caused to people in the opening and closing direction; even though the door can be normally used at ordinary times, when an earthquake occurs or disaster conditions are met, the door plate or the door frame can deform to a certain degree, so that the door is blocked and cannot be opened, and great safety risk exists.

Disclosure of Invention

The invention aims to solve the technical problem of providing a door capable of changing the matching state of a door leaf and a door frame by telescopic a door core so as to take sealing property and prevent blocking.

The invention solves the technical problems through the following technical scheme: a telescopic safety door comprises a door frame and a door leaf hinged on the door frame, wherein the door leaf sequentially comprises an outer door plate, an inner core and an inner door plate along the thickness direction, the inner core comprises a side edge hinged with the door frame and a telescopic door core, and the telescopic door core is unfolded to be abutted and matched with three surfaces except a hinged surface of an inner ring of the door frame in a normal use state; when the door is in a contraction state, the telescopic door core is not in contact with the inner ring of the door frame.

When the safety door provided by the invention is in normal use, the telescopic door core is unfolded to be matched with the other three surfaces except the hinged surface of the inner ring of the door frame, so that the isolation of the inner space and the outer space is realized, the smoke is prevented from permeating, and when the safety door is in a contraction state, the telescopic door core is not in contact with the inner ring of the door frame, so that the door leaf can be ensured to be normally opened under the condition that the door frame 1 is deformed, and the safety is improved.

Preferably, the retractable door core comprises a first door block, a second door block, a third door block, a fourth door block, a fifth door block and a driving mechanism for driving each door block to act;

the first door block is in an isosceles trapezoid structure, the second door block and the third door block are in right-angle trapezoid structures, oblique sides of the right-angle trapezoid structures are respectively matched with two oblique sides of the first door block, symmetrical axes of the second door block and the third door block relative to the first door block are symmetrically distributed above and below the first door block, and the fourth door block and the fifth door block are in rectangular structures;

when the door is in use, the upper bottom edge of the first door block is matched with the vertical side edges of the door frame together with the lower bottom edges of the second door block and the third door block, the right-angle edge of the second door block and the upper side edge of the fourth door block are matched with the upper surface of the door frame, and the right-angle edge of the third door block and the lower side edge of the fifth door block are matched with the lower surface of the door frame; the oblique edges of the second door block and the third door block are respectively abutted with the two oblique edges of the first door block, and the upper bottom edges of the second door block and the third door block are respectively abutted with the side edges of the fourth door block and the fifth door block; a lock is arranged on the first door block along the horizontal direction, and a lock tongue protrudes out of the upper bottom edge of the first door block when the lock is in a locking state; the inner door plate and the outer door plate are provided with horizontal sliding grooves for sliding of the lockset handles;

the driving mechanism controls the fourth door block and the fifth door block to move towards the inner area of the door leaf along the vertical direction, the first door block moves towards the inner area of the door leaf along the horizontal direction, and the second door block and the third door block move towards the inner area of the door leaf along the direction of the vertical inclined edge.

Preferably, a limiting block is respectively fixed between the inner door panel and the outer door panel in the coverage area of each door block, and a limiting groove capable of sliding relative to the limiting block along the movement direction of the door block is arranged on the door block.

Preferably, actuating mechanism is including fixing fixed block between the inside and outside door plant, the fixed block is in under the first door piece the base and is close to the stupefied one side of side, be provided with along the horizontal direction on the fixed block with first door piece fixed connection's first telescopic link, still be provided with the reverse second telescopic link of first telescopic link, the one side that fourth door piece and fifth door piece are close to each other articulates respectively has a connecting rod, the other end of two connecting rods respectively with the articulated cooperation of free end of second telescopic link.

Preferably, one end of the limiting block, which is close to the center of the door leaf, is provided with a limiting spring, and two ends of the limiting spring are respectively abutted to the limiting block and the limiting groove.

Preferably, a first sensor and a second sensor are further fixed between the inner door panel and the outer door panel, and when the first sensor is triggered in a contraction state, the first telescopic rod stops acting; when the second sensor is triggered, the second telescopic rod stops acting.

Preferably, the first sensor is arranged between the first door block and the fixed block, and the second sensor is arranged in the extending direction of the second telescopic rod.

Preferably, a switch and a power supply are arranged on at least one indoor side of the door leaf, a controller is arranged on the fixed block, the switch and the power supply are connected with the controller in series, and the controller is electrically connected with the first telescopic rod, the second telescopic rod, the first sensor and the second sensor respectively; the switch sends a command for controlling the extension or contraction of the telescopic door core to the controller.

The telescopic safety door provided by the invention has the advantages that: when in normal use, the expansion door core is unfolded to be matched with other three surfaces except the hinged surface of the inner ring of the door frame, so that the isolation of the inner space and the outer space is realized, the smoke infiltration is prevented, and when in a contraction state, the expansion door core is not in contact with the inner ring of the door frame, so that the door leaf can be ensured to be normally opened under the condition that the door frame 1 deforms, and the safety is improved.

Drawings

Fig. 1 is a schematic view of a safety door with an extended retractable door core according to an embodiment of the present invention;

fig. 2 is a schematic view of the safety door with the retractable door core in a retracted state according to an embodiment of the present invention.

Detailed Description

In order that the objects, technical solutions and advantages of the present invention will become more apparent, the present invention will be further described in detail with reference to the accompanying drawings in conjunction with the following specific embodiments.

As shown in fig. 1, the present embodiment provides a retractable safety door, which includes a door frame 1 and a door leaf (not shown) hinged to the door frame 1, wherein the door leaf includes an outer door panel (not shown), an inner core (not shown) and an inner door panel 21 in sequence along a thickness direction, the inner core includes a side edge 22 hinged to the door frame 1 and a retractable door core (not shown), and in a normal use state, the retractable door core is unfolded to abut against and fit with three surfaces except a hinged surface of an inner ring of the door frame 1, so as to prevent smoke from permeating, and achieve effective spatial isolation; when the door is in a contraction state, the telescopic door core is not in contact with the inner ring of the door frame 1, so that the door leaf can be quickly opened under the condition that the door frame 1 is deformed, the door leaf can timely leave a dangerous place, and the safety is improved.

Specifically, the retractable door core comprises a first door block 31, a second door block 32, a third door block 33, a fourth door block 34 and a fifth door block 35, when viewed in a direction perpendicular to the door leaf, the first door block 31 is in an isosceles trapezoid structure, the second door block 32 and the third door block 33 are in a right-angle trapezoid structure with oblique sides respectively matched with the two oblique sides of the first door block 31, the second door block 32 and the third door block 33 are symmetrically distributed above and below the first door block 31 relative to a symmetry axis of the first door block 31, the fourth door block 34 and the fifth door block 35 are in a rectangular structure, and the fourth door block 34 and the fifth door block 35 are located between side ridges 22 of the second door block 32;

fig. 1 is a view showing a state that the retractable door core is unfolded in normal use, wherein the upper bottom edge of the first door block 31, the lower bottom edges of the second door block 32 and the third door block 33 are matched with the vertical side edge of the door frame 1, the right-angle edge of the second door block 32 and the upper side edge of the fourth door block 34 are matched with the upper surface of the door frame 1, and the right-angle edge of the third door block 33 and the lower side edge of the fifth door block 35 are matched with the lower surface of the door frame; the oblique edges of the second door block 32 and the third door block 33 are respectively abutted with the two oblique edges of the first door block 31, and the upper bottom edges of the second door block 32 and the third door block 33 are respectively abutted with the side edges of the fourth door block 34 and the fifth door block 35; a lock 4 is arranged on the first door block 31 along the horizontal direction, and a bolt protrudes out of the upper bottom edge of the first door block 41 when the lock 4 is in a locking state; a horizontal sliding chute 23 for sliding a handle of the lock 4 is arranged on the inner door panel and the outer door panel; in daily life, the expansion door core keeps the expansion state, and the opening and closing of the door leaf can be controlled through a key and a handle, and under the emergency situation, the lock 4 can be directly released from being matched with the door frame 1 through the transverse movement of the first door block 31, so that the door leaf is directly opened without the key. In general, in order to ensure the smooth opening and closing of the door leaf, each door block is only required to be in contact with the door frame 1, and the door frame 1 does not need to be tightly propped; for the places with high requirements on partial sealing performance, the telescopic operation of the telescopic door core can be executed when the door is opened and closed every time, and each door block is tightly pressed against the inner ring of the door frame 1 when the door is closed, so that high sealing performance is provided.

The fourth door block 34 and the fifth door block 35 can move towards the door leaf inner area along the vertical direction, the first door block 31 can move towards the door leaf inner area along the horizontal direction, and the second door block 32 and the third door block 33 can move towards the door leaf inner area along the direction of the vertical inclined edge; in this embodiment, the second door block 32 and the third door block 33 are arranged in a structure with an inner angle of 45 degrees on the oblique side, and two oblique sides of the first door block 31 are perpendicular to each other, so that the inward contraction distance of the right-angle sides of the second door block 32 and the third door block 33 is the same, and the door blocks are controlled by the telescopic mechanism to move.

A limiting block 24 is respectively fixed in the covering area of each door block between the inner door plate and the outer door plate, a limiting groove 36 capable of sliding relative to the limiting block 24 along the moving direction of the door block is arranged on each door block, and the moving direction and the moving range of each door block are limited through the matching of the limiting groove 36 and the limiting block 24.

The driving mechanism provided by the embodiment comprises a fixing block 5 fixed on the door leaf, wherein the fixing block 5 is located between the first door block 31 and the side edge 22, a first telescopic rod 51 fixedly connected with the first door block 31 is arranged on the fixing block 5 along the horizontal direction, a second telescopic rod 52 opposite to the first telescopic rod 51 is further arranged on the fixing block 5, one side, close to the fourth door block 34 and the fifth door block 35, of the fourth door block is hinged with a connecting rod 53, the other end of the connecting rod 53 is hinged with the free end of the second telescopic rod 52, when the telescopic door core is in an unfolded state, the two connecting rods 53 are perpendicular to the second telescopic rod 52, namely, the distance between the second telescopic rod 52 and the fourth door block 34 and the distance between the second telescopic rod 52 and the fifth door block 35 are farthest.

Referring to fig. 2, when the retractable door core is retracted, the second retractable rod 52 is extended, and the fourth door block 34 and the fifth door block 35 are pulled towards the inside of the door leaf through the connecting rod 53 to contact and match with the upper bottom edges of the second door block 32 and the third door block 33; then the first telescopic rod 51 is retracted inwards to drive the first door block 31 to retract towards the inner area of the door leaf along the horizontal direction, and after the action of other door blocks is lost, the matching between the second door block 32 and the third door block 33 and the door frame is automatically released, so that the door leaf can be opened easily.

In order to enable the second door block 32 and the third door block 33 to automatically contract, in this embodiment, a limiting spring 25 is disposed at one end of the limiting block 24 close to the center of the door leaf, two ends of the limiting spring 25 are respectively abutted against the limiting block 24 and the limiting groove 36, when the retractable door core is in the unfolded state, the limiting spring 25 is in a compressed state, after the first door block 31, the fourth door block 34 and the fifth door block 35 are respectively disengaged from the second door block 32 and the third door block 33, the second door block 32 and the third door block 33 can move towards the inner area of the door leaf under the action of the limiting spring 25, so as to disengage from the inner ring of the door frame 1,

when the telescopic door core is unfolded, the action is opposite, the first telescopic rod 51 is extended to drive the first door block 31 to be matched with the door frame 1 along the horizontal direction, the second door block 32 and the third door block 33 are driven to be in place simultaneously, and then the second telescopic rod 52 is contracted to enable the fourth door block 34 and the fifth door block 35 to be in place.

In order to ensure that each door block moves in place, in this embodiment, a first sensor 61 and a second sensor 62 are further fixed inside the door leaf, specifically, the first sensor 61 is disposed between the first door block 31 and the fixed block 5, and the second sensor 62 is disposed in the extending direction of the second telescopic rod; when the retractable door core is retracted, the first retractable rod 51 stops after the lower edge of the first door block 5 contacts the first sensor 61, and the second retractable rod 52 stops when the second retractable rod 52 extends and contacts the second sensor 62.

Based on the above, a corresponding control system and a circuit need to be configured for the security door, and based on the technical solution disclosed in this embodiment, a person skilled in the art can provide a necessary control method and circuit to implement the technical solution of the present invention in combination with the prior art, in the preferred embodiment, a switch and a power supply are provided on the inner door panel 21 on one side inside the door leaf chamber, a controller is provided on the fixed block 5, the switch, the power supply and the controller are connected in series, the controller is electrically connected with the first telescopic rod 51, the second telescopic rod 52, the first sensor 61 and the second sensor 62, the controller is issued a command through the switch, and the controller specifically operates the corresponding telescopic rod to operate; wherein the command issued by the switch is a command for the expansion or contraction of the retractable door core.

Claims

1. A telescopic emergency exit which characterized in that: the door comprises a door frame and a door leaf hinged on the door frame, wherein the door leaf sequentially comprises an outer door plate, an inner core and an inner door plate along the thickness direction, the inner core comprises a side edge hinged with the door frame and a telescopic door core, and the telescopic door core is unfolded to be abutted and matched with three surfaces of an inner ring of the door frame except for a hinged surface in a normal use state; when in a contraction state, the telescopic door core is not contacted with the inner ring of the doorframe;

the telescopic door core comprises a first door block, a second door block, a third door block, a fourth door block, a fifth door block and a driving mechanism for driving the door blocks to act;

the first door block is in an isosceles trapezoid structure, the second door block and the third door block are in right-angle trapezoid structures, oblique sides of the right-angle trapezoid structures are respectively matched with two oblique sides of the first door block, the second door block and the third door block are symmetrically distributed above and below the first door block relative to a symmetry axis of the first door block, and the fourth door block and the fifth door block are in rectangular structures;

2. A retractable safety door according to claim 1, wherein: a limiting block is respectively fixed in the coverage area of each door block between the inner door plate and the outer door plate, and a limiting groove which can slide along the motion direction of the door block relative to the limiting block is arranged on the door block.

3. A retractable safety door according to claim 2, wherein: the driving mechanism comprises a fixed block fixed between the inner door plate and the outer door plate, the fixed block is positioned on one side, close to the side where the first door block is close to, of the bottom edge of the first door block, a first telescopic rod fixedly connected with the first door block is arranged on the fixed block in the horizontal direction, a second telescopic rod opposite to the first telescopic rod is further arranged, one side, close to the fourth door block, of the fifth door block is hinged to a connecting rod, and the other ends of the two connecting rods are hinged to and matched with the free end of the second telescopic rod.

4. A retractable safety door according to claim 2 or 3, wherein: and one end of the limiting block, which is close to the center of the door leaf, is provided with a limiting spring, and two ends of the limiting spring are respectively abutted against the limiting block and the limiting groove.

5. A retractable safety door according to claim 3, wherein: a first sensor and a second sensor are further fixed between the inner door plate and the outer door plate, and when the first sensor is triggered in a contraction state, the first telescopic rod stops acting; when the second sensor is triggered, the second telescopic rod stops acting.

6. A retractable safety door according to claim 5, wherein: the first sensor is arranged between the first door block and the fixed block, and the second sensor is arranged on the extension direction of the second telescopic rod.

7. A retractable safety door according to claim 5, wherein: a switch and a power supply are arranged on at least one indoor side of the door leaf, a controller is arranged on the fixed block, the switch and the power supply are connected with the controller in series, and the controller is electrically connected with the first telescopic rod, the second telescopic rod, the first sensor and the second sensor respectively; the switch sends a command for controlling the extension or contraction of the telescopic door core to the controller.