CN110566103B

CN110566103B - Anti-theft door

Info

Publication number: CN110566103B
Application number: CN201910884310.7A
Authority: CN
Inventors: 宋江河
Original assignee: Zhejiang Qianyita Fire Technology Co Ltd
Current assignee: Zhejiang qianyita Fire Technology Co., Ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-07-31
Anticipated expiration: 2039-09-19
Also published as: CN110566103A

Abstract

The invention relates to the field of door and window equipment, in particular to a security door, which comprises a door frame, a door body with a security lock, a movable door plate, a ventilation door plate, an inner door locking device and a locking and unlocking device, wherein the door body is rotationally connected to the door frame; the upper end of the door body is provided with a door plate sliding chute, the left side and the right side of the front end of the door plate sliding chute are respectively provided with a transverse sliding chute, the lower side of the rear end of the door plate sliding chute is provided with a longitudinal sliding chute, and the middle part of the rear end of the longitudinal sliding chute is provided with a guide sliding chute; the movable door plate is in sliding fit in the door plate sliding chute, the longitudinal sliding chute and the guide sliding chute; the front end of the movable door plate is in transmission connection with the air door plate; the invention provides a security door which is provided with a movable door plate and a ventilation door plate which can be switched to open, and can be used for collecting small articles for express delivery under the state that a door body is not opened through the matching of the movable door plate and the ventilation door plate.

Description

Anti-theft door

Technical Field

The invention relates to the field of door and window equipment, in particular to a security door.

Background

It is now a trend for security to install security doors in residential and other access doors that contain important items. But security door among the prior art has some inconvenience in life when using, and when receiving smallclothes express delivery, indoor personnel can't receive smallclothes express delivery under the state that does not open the door, and open security door then take place danger easily, and the security door loses effect.

Disclosure of Invention

In view of this, the invention provides a security door, which is provided with a movable door panel and a ventilation door panel that can be switched to open, and can realize the express delivery of small articles without opening a door body through the cooperation of the movable door panel and the ventilation door panel.

In order to achieve the above object, the following solutions are proposed:

an anti-theft door comprises a door frame, a door body with an anti-theft lock, a movable door plate, a ventilation door plate, an inner door locking device and a locking unlocking device, wherein the door body is rotatably connected to the door frame; the upper end of the door body is provided with a door plate sliding chute, the left side and the right side of the front end of the door plate sliding chute are respectively provided with a transverse sliding chute, the lower side of the rear end of the door plate sliding chute is provided with a longitudinal sliding chute, and the middle part of the rear end of the longitudinal sliding chute is provided with a guide sliding chute; the movable door plate is in sliding fit in the door plate sliding chute, the longitudinal sliding chute and the guide sliding chute; the front end of the movable door plate is in transmission connection with the air door plate; the ventilation door plate is in sliding fit with the door plate sliding grooves and the two transverse sliding grooves; the lower end of the movable door plate is in transmission connection with an inner locking device; the inner locking device is fixedly connected to the door body and the door frame; the locking device in the door is connected with the locking unlocking device in a clamping manner; the locking and unlocking device is connected to the lower end of the inner side of the door body.

The movable door plate comprises an inner door plate, a pushing seat, a transverse guide plate, a sliding plate, a control plate, an inserting rod, a tension spring and a pressure spring; the inner door plate is in sliding fit in the door plate sliding groove and the longitudinal sliding groove; the lower end of the rear side of the inner door plate is fixedly connected with a pushing seat; the pushing seat is in sliding fit in the guide sliding chute; the rear end of the pushing seat is fixedly connected with a transverse guide plate; the rear end of the sliding plate is in sliding fit with the middle part of the transverse guide plate; the front end of the sliding plate is fixedly connected with an inserting rod; the left end and the right end of the sliding plate are respectively and fixedly connected with the right end of the tension spring and the left end of the compression spring; the left end of the tension spring and the right end of the pressure spring are respectively fixed at the left end and the right end of the pushing seat; an upper jack and a lower jack are arranged on the left side surface inside the guide sliding chute; the left end of the inserted bar is inserted into one jack; the control plate is fixedly connected to the upper end of the sliding plate; the push seat is positioned right above the inner door locking device and is in transmission connection with the inner door locking device; the inner door plate is connected with the air door plate in a transmission way.

The ventilation door plate comprises an outer door plate, a push-pull plate and a push-pull seat; the two outer door plates are symmetrically matched in the door plate sliding groove and the two transverse sliding grooves in a sliding manner; the two push-pull plates are arranged, the upper ends of the two push-pull plates are respectively and rotatably connected with the upper ends of the rear sides of the two outer door plates, and the lower ends of the two push-pull plates are respectively and rotatably matched with the two ends of the push-pull seat; the push-pull seat is fixed at the upper end of the front side of the inner door plate.

The included angle of the extension lines of the two push-pull plates is not less than 30 degrees.

And a plurality of ventilation openings are respectively arranged on the two outer door plates.

The inner door locking device comprises a locking pressing block, a locking connecting plate, a locking inserting plate, a socket, a sliding rod, a return spring, a horizontal seat plate and a locking clamping block; the locking pressing block is in sliding fit in the longitudinal sliding groove; the locking pressing block is positioned right below the pushing seat; the left end and the right end of the locking pressing block are respectively and rotatably connected with the inner end of one locking connecting plate, the outer ends of the two locking connecting plates are respectively and rotatably connected with one locking inserting plate, and the two locking inserting plates are symmetrically and slidably matched in the two horizontal sliding grooves on the rear side surface of the door body; the two sockets are respectively fixed at the left end and the right end of the door frame; the outer ends of the two locking insertion plates are respectively in sliding fit in the two sockets; the middle of the locking pressing block is fixedly connected with the top end of the sliding rod, the middle of the sliding rod is in sliding fit with the horizontal seat plate, and the horizontal seat plate is fixedly connected to the door plate; the lower end of the slide bar is fixedly connected with a locking clamping block; the sliding rod is sleeved with a return spring, and two ends of the return spring are fixedly connected with the locking pressing block and the horizontal seat plate respectively; the locking fixture block is connected with the locking unlocking device in a clamping mode.

The locking fixture block is of an inverted trapezoidal structure; the front side surface of the locking clamping block is obliquely provided with a first inclined surface.

The locking and unlocking device comprises an unlocking clamping block, a compression spring and an unlocking compression bar; the unlocking clamping block is in sliding fit in the clamping block sliding groove on the rear side face of the door body; the front end of the unlocking fixture block is fixedly connected with the inner side of the fixture block sliding groove through a plurality of compression springs; two ends of the unlocking fixture block are respectively fixedly connected with an unlocking pressure rod, the two unlocking pressure rods are respectively in sliding fit in the two pressure rod sliding grooves, and the two pressure rod sliding grooves are communicated with the fixture block sliding grooves; the unlocking clamping block is connected with the locking clamping block in a clamping mode.

The unlocking fixture block is of a regular trapezoid structure, a second inclined plane which is inclined backwards is arranged on the rear side of the unlocking fixture block, and the second inclined plane and the first inclined plane are arranged in parallel.

The front end of the inner door plate is provided with a receiving groove.

The invention has the beneficial effects that: the anti-theft door is provided with the movable door plate and the ventilation door plate which can be switched to be opened, and small articles can be collected and express delivered under the condition that the door body is not opened through the matching of the movable door plate and the ventilation door plate; the door inner locking device is arranged inside the door frame, so that the door frame and the door body can be relatively locked through the door inner locking device when someone is indoors, and the outdoor personnel can be prevented from picking the lock; the movable door plate inside the anti-theft door can drive the ventilation door plate to be closed after being opened, and enters a ventilation mode, the movable door plate can also drive the inner locking device to be locked after being opened, so that the anti-theft lock on the door body can be prevented from being opened by external personnel through devices such as an iron hook after the ventilation door plate is damaged, and the anti-theft door is high in safety performance.

Drawings

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

FIG. 1 is a first general structural diagram of the present invention;

FIG. 2 is a second overall structural schematic of the present invention;

FIG. 3 is a first schematic structural view of the door body of the present invention;

FIG. 4 is a second schematic structural view of the door body of the present invention;

FIG. 5 is a schematic structural view of a moveable door panel of the present invention;

FIG. 6 is a partial schematic view of a sectional view of the moveable door panel of the present invention;

FIG. 7 is a schematic structural view of an inner door panel of the present invention;

FIG. 8 is a schematic structural view of the vent door panel of the present invention;

FIG. 9 is a first schematic view of the construction of the door inner latch of the present invention;

FIG. 10 is a second schematic structural view of the in-door latch of the present invention;

fig. 11 is a schematic structural view of the locking dog of the present invention;

fig. 12 is a schematic structural view of the lock-unlocker of the present invention.

In the figure: a doorframe 1; a door body 2; a door panel chute 201; a lateral chute 202; a longitudinal chute 203; a guide chute 204; a movable door panel 3; an inner door panel 301; a push seat 302; a transverse guide plate 303; a slide plate 304; a console panel 305; a plunger 306; a tension spring 307; a pressure spring 308; a ventilation door panel 4; an outer door panel 401; a push-pull plate 402; a push-pull seat 403; an in-door locker 5; a locking press block 501; a locking yoke plate 502; a locking insert plate 503; a socket 504; a slide bar 505; a return spring 506; a horizontal seat plate 507; a locking latch 508; a lock-unlock 6; unlocking the fixture block 601; a compression spring 602; the unlocking strut 603.

Detailed Description

The technical solution of the present invention will be clearly and completely described by the following detailed description. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1-12, a security door comprises a door frame 1, a door body 2 with a security lock, a movable door plate 3, a ventilation door plate 4, an inner locking device 5 and a locking unlocking device 6, wherein the door body 2 is rotatably connected to the door frame 1; the upper end of the door body 2 is provided with a door plate sliding groove 201, the left side and the right side of the front end of the door plate sliding groove 201 are respectively provided with a transverse sliding groove 202, the lower side of the rear end of the door plate sliding groove 201 is provided with a longitudinal sliding groove 203, and the middle part of the rear end of the longitudinal sliding groove 203 is provided with a guide sliding groove 204; the movable door panel 3 is in sliding fit in the door panel sliding groove 201, the longitudinal sliding groove 203 and the guide sliding groove 204; the front end of the movable door panel 3 is in transmission connection with a ventilation door panel 4; the ventilating door plate 4 is in sliding fit in the door plate sliding groove 201 and the two transverse sliding grooves 202; the lower end of the movable door plate 3 is in transmission connection with an inner locking device 5; the inner door locking device 5 is fixedly connected to the door body 2 and the door frame 1; the inner door locking device 5 is connected with the locking unlocking device 6 in a clamping manner; the locking and unlocking device 6 is connected to the lower end of the inner side of the door body 2. According to the anti-theft door, when the anti-theft door is used, the ventilation door plate 4 and the movable door plate 3 can be switched to be opened, when ventilation is needed, the movable door plate 3 is controlled to move downwards, the movable door plate 3 can be driven to be closed after being opened by moving downwards, the ventilation door plate 4 prevents mosquitoes from entering and prevents external personnel from stretching hands into a room to open the anti-theft lock, the movable door plate 3 can also drive the in-door locking device 5 to work by moving downwards, the door body 2 and the door frame 1 are relatively locked by the in-door locking device 5, the internal locking of the door body 2 is realized, the anti-theft lock on the door body 2 is opened by devices such as an iron hook after the ventilation door plate 4 is prevented from being damaged by the external personnel, and the safety performance is high; when the door body 2 needs to be opened, the locking and unlocking device 6 is controlled to unlock the locking device 5 in the door; when having the smallclothes express delivery, can let the express delivery person put into door plant spout 201 with the smallclothes express delivery through ventilation door board 4 department of opening in, then indoor personnel drive ventilation door board 4 and close when opening movable door board 3, take out the express delivery can, prevent outdoor personnel and indoor personnel direct contact, need not to open a body 2.

Example two:

as shown in fig. 1 to 12, the movable door panel 3 includes an inner door panel 301, a pushing seat 302, a cross guide 303, a sliding plate 304, a manipulating plate 305, an inserting rod 306, a tension spring 307 and a compression spring 308; the inner door panel 301 is in sliding fit in the door panel sliding groove 201 and the longitudinal sliding groove 203; the lower end of the rear side of the inner door panel 301 is fixedly connected with a pushing seat 302; the pushing seat 302 is in sliding fit in the guide chute 204; the rear end of the pushing seat 302 is fixedly connected with a transverse guide plate 303; the rear end of the sliding plate 304 is in sliding fit with the middle of the transverse guide plate 303; the front end of the sliding plate 304 is fixedly connected with a plug-in lever 306; the left end and the right end of the sliding plate 304 are respectively and fixedly connected with the right end of a tension spring 307 and the left end of a compression spring 308; the left end of the tension spring 307 and the right end of the compression spring 308 are respectively fixed at the left end and the right end of the pushing seat 302; an upper jack and a lower jack are arranged on the left side surface inside the guide chute 204; the left end of the inserted bar 306 is inserted into one jack; the operation panel 305 is fixedly connected to the upper end of the sliding panel 304; the push seat 302 is positioned right above the inner door locking device 5, and the push seat 302 is in transmission connection with the inner door locking device 5; the inner door panel 301 is in transmission connection with the air door panel 4. The movable door plate 3 can be opened by sliding downwards, when the inner door plate 301 needs to be opened, the control plate 305 is pulled outwards first, the control plate 305 drives the sliding plate 304 to move outwards, the sliding plate 304 drives the insertion rod 306 to be separated from the insertion hole inside the guide sliding groove 204, the tension spring 307 is driven to stretch at the moment, the pressure spring 308 is driven to be compressed, then the control plate 305 is pressed downwards to drive the pushing seat 302 to move downwards, the pushing seat 302 drives the inner door plate 301 to slide downwards, the inner door plate 301 is opened by sliding downwards in the door plate sliding groove 201 and the longitudinal sliding groove 203, and the inner door plate 301 can be driven to close the ventilation door plate 4 and control the door inner locking device 5 to lock the door frame 1 and the door body 2 relatively.

Example three:

as shown in fig. 1 to 12, the ventilation door panel 4 comprises an outer door panel 401, a push-pull plate 402 and a push-pull seat 403; two outer door plates 401 are arranged, and the two outer door plates 401 are symmetrically and slidably matched in the door plate sliding grooves 201 and the two transverse sliding grooves 202; the number of the push-pull plates 402 is two, the upper ends of the two push-pull plates 402 are respectively and rotatably connected to the upper ends of the rear sides of the two outer door plates 401, and the lower ends of the two push-pull plates 402 are respectively and rotatably matched with the two ends of the push-pull seat 403; the push-pull seat 403 is fixed to the upper end of the front side of the inner door panel 301. When the inner door panel 301 is opened downwards, the push-pull seat 403 can be driven to move downwards, when the push-pull seat 403 moves downwards, the included angle between the two push-pull plates 402 can be driven to be smaller, the two outer door panels 401 are driven by the two push-pull plates 402 to slide inwards and close in the door panel sliding groove 201 and the two transverse sliding grooves 202, and then the ventilation mode is started; on the contrary, when the inner door panel 301 is closed upwards, the two outer door panels 401 are opened, so that the small articles can be conveniently put in for express delivery or other small articles.

Example four:

as shown in fig. 1 to 12, the extension lines of the two push-pull plates 402 form an included angle of not less than 30 degrees.

Example five:

as shown in fig. 1 to 12, a plurality of ventilation openings are respectively formed in the two outer door panels 401. The inner side of the ventilation opening is provided with a nylon filter screen to prevent mosquitoes or dust from entering the room.

Example six:

as shown in fig. 1 to 12, the in-door locker 5 includes a lock pressing block 501, a lock link plate 502, a lock insertion plate 503, a socket 504, a slide bar 505, a return spring 506, a horizontal seat plate 507, and a lock dog 508; the locking pressing block 501 is in sliding fit in the longitudinal sliding groove 203; the locking pressing block 501 is positioned right below the pushing seat 302; the left end and the right end of the locking pressing block 501 are respectively and rotatably connected with the inner end of one locking connecting plate 502, the outer ends of the two locking connecting plates 502 are respectively and rotatably connected with one locking inserting plate 503, and the two locking inserting plates 503 are symmetrically matched in the two horizontal sliding grooves on the rear side surface of the door body 2 in a sliding manner; two sockets 504 are arranged, and the two sockets 504 are respectively fixed at the left end and the right end of the door frame 1; the outer ends of the two locking insertion plates 503 are respectively in sliding fit in the two sockets 504; the middle of the locking pressing block 501 is fixedly connected with the top end of a sliding rod 505, the middle of the sliding rod 505 is in sliding fit with a horizontal seat plate 507, and the horizontal seat plate 507 is fixedly connected to a door panel; the lower end of the slide bar 505 is fixedly connected with a locking fixture block 508; a return spring 506 is sleeved on the sliding rod 505, and two ends of the return spring 506 are respectively and fixedly connected with the locking press block 501 and the horizontal seat plate 507; the locking fixture block 508 is connected with the locking and unlocking device 6 in a clamping mode. The locking pressing block 501 in the door inner locking device 5 moves downwards under the driving of the pushing seat 302, the locking pressing block 501 moves downwards to drive the inner ends of the two locking connection plates 502 to move downwards, the outer ends of the two locking connection plates 502 drive the two locking insertion plates 503 to slide outwards in the two horizontal sliding grooves on the rear side surface of the door body 2, the outer ends of the two locking insertion plates 503 are inserted into the two sockets 504 to realize locking, the locking pressing block 501 moves downwards to drive the sliding rod 505 to move downwards and compress the return spring 506, the sliding rod 505 moves downwards to drive the locking clamping block 508 to move downwards to be clamped on the locking unlocking device 6, the position of the locking pressing block 501 is relatively fixed through the locking unlocking device 6, and external personnel are prevented from unlocking through controlling the inner door panel 301; when the contact locking is needed, the locking and unlocking device 6 is controlled to be disengaged from the locking and unlocking block 508, and the locking and unlocking block 508, the sliding rod 505 and the locking and unlocking block 501 move upwards to be disengaged from the locking and unlocking device 6 under the elastic force of the return spring 506, and at this time, the adjustment can be carried out through controlling the control panel 305.

Example seven:

as shown in fig. 1 to 12, the locking latch 508 has an inverted trapezoidal structure; the front side surface of the locking block 508 is provided with a first inclined surface which is inclined backwards.

Example eight:

as shown in fig. 1 to 12, the lock unlocker 6 includes an unlocking dog 601, a compression spring 602, and an unlocking pressing lever 603; the unlocking fixture block 601 is in sliding fit in the fixture block sliding groove on the rear side surface of the door body 2; the front end of the unlocking fixture block 601 is fixedly connected with the inner side of the fixture block sliding groove through a plurality of compression springs 602; two ends of the unlocking fixture block 601 are respectively fixedly connected with an unlocking pressure lever 603, the two unlocking pressure levers 603 are respectively in sliding fit in two pressure lever chutes, and the two pressure lever chutes are communicated with the fixture block chute; the unlocking latch 601 is connected with the locking latch 508 in a clamping manner. The inside unblock fixture block 601 of locking unlocking ware 6 blocks behind the lower extreme of locking briquetting 501, prevents to lock briquetting 501 motion, realizes the locking, when needing the unblock, presses unblock depression bar 603, and unblock depression bar 603 drives unblock fixture block 601 and inwards slides and compress compression spring 602 in the fixture block spout, and at this moment, unblock fixture block 601 contact blocks the locking to locking briquetting 501, and locking briquetting 501 can move, can carry out regulation control through control panel 305.

Example nine:

as shown in fig. 1 to 12, the unlocking latching block 601 is a regular trapezoid structure, and a second inclined plane inclined backward is disposed at the rear side of the unlocking latching block 601, and the second inclined plane is parallel to the first inclined plane.

Example ten:

as shown in fig. 1 to 12, a receiving groove is formed at the front end of the inner door panel 301. The express receiving groove is used for receiving express.

The working principle of the invention is as follows:

according to the anti-theft door, when the anti-theft door is used, the ventilation door plate 4 and the movable door plate 3 can be switched to be opened, when ventilation is needed, the movable door plate 3 is controlled to move downwards, the movable door plate 3 can be driven to be closed after being opened by moving downwards, the ventilation door plate 4 prevents mosquitoes from entering and prevents external personnel from stretching hands into a room to open the anti-theft lock, the movable door plate 3 can also drive the in-door locking device 5 to work by moving downwards, the door body 2 and the door frame 1 are relatively locked by the in-door locking device 5, the internal locking of the door body 2 is realized, the anti-theft lock on the door body 2 is opened by devices such as an iron hook after the ventilation door plate 4 is prevented from being damaged by the external personnel, and the safety performance is high; when the door body 2 needs to be opened, the locking and unlocking device 6 is controlled to unlock the locking device 5 in the door; when having the smallclothes express delivery, can let the express delivery person put into door plant spout 201 with the smallclothes express delivery through ventilation door board 4 department of opening in, then indoor personnel drive ventilation door board 4 and close when opening movable door board 3, take out the express delivery can, prevent outdoor personnel and indoor personnel direct contact, need not to open a body 2.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a security door, includes door frame (1), has the door body (2) of pickproof lock, activity door plant (3), ventilation door plant (4), indoor locking ware (5) and locking ware (6) of unlocking, its characterized in that: the door body (2) is rotatably connected to the door frame (1); the upper end of the door body (2) is provided with a door plate sliding groove (201), the left side and the right side of the front end of the door plate sliding groove (201) are respectively provided with a transverse sliding groove (202), the lower side of the rear end of the door plate sliding groove (201) is provided with a longitudinal sliding groove (203), and the middle part of the rear end of the longitudinal sliding groove (203) is provided with a guide sliding groove (204); the movable door plate (3) is in sliding fit in the door plate sliding groove (201), the longitudinal sliding groove (203) and the guide sliding groove (204); the front end of the movable door panel (3) is in transmission connection with the ventilating door panel (4); the ventilating door plate (4) is in sliding fit in the door plate sliding groove (201) and the two transverse sliding grooves (202); the lower end of the movable door plate (3) is in transmission connection with an inner locking device (5); the inner door locking device (5) is fixedly connected to the door body (2) and the door frame (1); the inner door locking device (5) is connected with the locking unlocking device (6) in a clamping manner; the locking and unlocking device (6) is connected to the lower end of the inner side of the door body (2);

the movable door panel (3) comprises an inner door panel (301), a pushing seat (302), a transverse guide plate (303), a sliding plate (304), a control plate (305), an inserted link (306), a tension spring (307) and a pressure spring (308); the inner door panel (301) is in sliding fit in the door panel sliding groove (201) and the longitudinal sliding groove (203); the lower end of the rear side of the inner door panel (301) is fixedly connected with a pushing seat (302); the pushing seat (302) is in sliding fit in the guide sliding groove (204); the rear end of the pushing seat (302) is fixedly connected with a transverse guide plate (303); the rear end of the sliding plate (304) is in sliding fit with the middle of the transverse guide plate (303); the front end of the sliding plate (304) is fixedly connected with an inserting rod (306); the left end and the right end of the sliding plate (304) are respectively and fixedly connected with the right end of a tension spring (307) and the left end of a compression spring (308); the left end of the tension spring (307) and the right end of the compression spring (308) are respectively fixed at the left end and the right end of the pushing seat (302); an upper jack and a lower jack are arranged on the left side surface inside the guide sliding groove (204); the left end of the inserted rod (306) is inserted into one jack; the control board (305) is fixedly connected to the upper end of the sliding board (304); the push seat (302) is positioned right above the inner door locking device (5), and the push seat (302) is in transmission connection with the inner door locking device (5); the inner door panel (301) is in transmission connection with the air door panel (4);

the ventilating door plate (4) comprises an outer door plate (401), a push-pull plate (402) and a push-pull seat (403); the number of the outer door plates (401) is two, and the two outer door plates (401) are symmetrically matched in the door plate sliding groove (201) and the two transverse sliding grooves (202) in a sliding manner; the two push-pull plates (402) are arranged, the upper ends of the two push-pull plates (402) are respectively and rotatably connected to the upper ends of the rear sides of the two outer door plates (401), and the lower ends of the two push-pull plates (402) are respectively and rotatably matched with the two ends of the push-pull seat (403); the push-pull seat (403) is fixed at the upper end of the front side of the inner door panel (301).

2. A security door as claimed in claim 1, wherein: the included angle of the extension lines of the two push-pull plates (402) is not less than 30 degrees.

3. A security door as claimed in claim 2, wherein: a plurality of ventilation openings are respectively formed in the two outer door plates (401).

4. A security door as claimed in claim 1, wherein: the inner door locking device (5) comprises a locking pressing block (501), a locking connecting plate (502), a locking inserting plate (503), a socket (504), a sliding rod (505), a return spring (506), a horizontal seat plate (507) and a locking pressing block (508); the locking pressing block (501) is in sliding fit in the longitudinal sliding groove (203); the locking pressing block (501) is positioned right below the pushing seat (302); the left end and the right end of the locking pressing block (501) are respectively and rotatably connected with the inner end of one locking connecting plate (502), the outer ends of the two locking connecting plates (502) are respectively and rotatably connected to one locking inserting plate (503), and the two locking inserting plates (503) are symmetrically matched in two horizontal sliding grooves in the rear side surface of the door body (2) in a sliding manner; two sockets (504) are arranged, and the two sockets (504) are respectively fixed at the left end and the right end of the door frame (1); the outer ends of the two locking insertion plates (503) are respectively matched in the two sockets (504) in a sliding way; the middle of the locking pressing block (501) is fixedly connected with the top end of a sliding rod (505), the middle of the sliding rod (505) is in sliding fit with a horizontal seat plate (507), and the horizontal seat plate (507) is fixedly connected to a door panel; the lower end of the slide rod (505) is fixedly connected with a locking clamping block (508); a return spring (506) is sleeved on the sliding rod (505), and two ends of the return spring (506) are respectively and fixedly connected with the locking pressing block (501) and the horizontal seat plate (507); the locking fixture block (508) is connected with the locking unlocking device (6) in a clamping mode.

5. A security door as claimed in claim 4, wherein: the locking fixture block (508) is of an inverted trapezoidal structure; the front side surface of the locking clamping block (508) is provided with a first inclined surface which inclines backwards.

6. A security door as claimed in claim 5, wherein: the locking and unlocking device (6) comprises an unlocking clamping block (601), a compression spring (602) and an unlocking pressing rod (603); the unlocking fixture block (601) is in sliding fit in the fixture block sliding groove on the rear side face of the door body (2); the front end of the unlocking fixture block (601) is fixedly connected with the inner side of the fixture block sliding groove through a plurality of compression springs (602); two ends of the unlocking fixture block (601) are respectively fixedly connected with an unlocking pressure lever (603), the two unlocking pressure levers (603) are respectively in sliding fit in the two pressure lever chutes, and the two pressure lever chutes are communicated with the fixture block chute; the unlocking fixture block (601) is connected with the locking fixture block (508) in a clamping mode.

7. A security door as claimed in claim 6, wherein: the unlocking fixture block (601) is of a regular trapezoid structure, a second inclined plane inclined backwards is arranged on the rear side of the unlocking fixture block (601), and the second inclined plane and the first inclined plane are arranged in parallel.

8. A security door as claimed in claim 1, wherein: the front end of the inner door panel (301) is provided with a receiving groove.