CN214697368U

CN214697368U - Door plant secondary unlocking structure

Info

Publication number: CN214697368U
Application number: CN202023118252.4U
Authority: CN
Inventors: 魏新荣; 王金平
Original assignee: Suzhou D Snap Technologies Co ltd
Current assignee: Suzhou D Snap Technologies Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-11-12
Anticipated expiration: 2030-12-22

Abstract

A secondary unlocking structure of a door plate comprises a first lock and a second lock; the primary lock comprises a rotary lock cylinder, a front lock rod and a rear lock rod; the rotary lock cylinder penetrates through the door plate, a connecting rod is arranged at the upper end of a rotating shaft of the rotary lock cylinder, and the connecting rod drives the front lock rod and the rear lock rod to slide back and forth on the door plate; when the primary lock is locked, the front end of the front lock rod is erected on the front side of the doorframe, and the rear end of the rear lock rod is erected on the rear side of the doorframe; when the primary lock is unlocked, the front end of the front lock rod is separated from the front side of the doorframe, and the rear end of the rear lock rod is separated from the rear side of the doorframe; the second lock comprises a hook, a support and a baffle, the support is rotatably arranged on the door panel, a slideway is arranged in the support, the hook is arranged in the slideway in a vertically sliding manner, the hook has an upward extending state and a downward retracting state, and the baffle is arranged on the door frame and corresponds to the hook; when the two locks are locked, the hook is hung on the baffle to prevent the door plate from rotating downwards, and when the two locks are unlocked, the hook is separated from the baffle, and the door plate can be continuously opened.

Description

Door plant secondary unlocking structure

Technical Field

The utility model relates to a tool to lock field, concretely relates to secondary unlocking structure that comprises twice lock on door plant.

Background

On some heavier door plant of weight, especially the door that opens and shuts from top to bottom, if only set up one lock, then operating personnel is in the one-time of unblanking, and the door plant can be because the dead weight is too big fast downwardly rotating, causes personnel to pound the injury.

Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.

Disclosure of Invention

The utility model aims at providing a door plant secondary unlocking structure, for reaching above-mentioned purpose, the utility model discloses a technical scheme be:

a secondary unlocking structure of a door plate comprises a first lock and a second lock;

the primary lock comprises a rotary lock cylinder, a front lock rod and a rear lock rod;

the rotary lock cylinder penetrates through the door plate, and a connecting rod is arranged at the upper end of a rotating shaft of the rotary lock cylinder;

the front lock rod and the rear lock rod are both arranged on the door panel in a sliding manner, and the rear end of the front lock rod is connected with the first end of the connecting rod through a pivot; the front end of the rear lock rod is pivotally connected with the second end of the connecting rod;

in a locking state, the front end of the front lock rod is erected on the front side of the door frame, and the rear end of the rear lock rod is erected on the rear side of the door frame;

the secondary lock comprises a hook, a bracket and a baffle;

the support is rotatably arranged on the door plate, a slide way is arranged in the support, the slide way is a cavity channel in the support, and the extending direction of the slide way is defined as the up-down direction; the hook is arranged in the slideway in a vertically sliding manner, and has an upward extending state and a downward retracting state;

the baffle is arranged on the door frame and corresponds to the hook.

Furthermore, the lock also comprises a front lock plate and a rear lock plate;

the front lock plate and the rear lock plate are both arranged on a door frame matched with the door plate, the front lock plate is positioned on the front side of the door frame, and the rear lock plate is positioned on the rear side of the door frame;

in a locked state, the front end of the front lock rod is erected on the front lock plate, and the rear end of the rear lock rod is erected on the rear lock plate.

Furthermore, the rod body of the front lock rod is connected with the door plate through a pinch plate, two ends of the pinch plate are fixed on the door plate, the middle of the pinch plate is of an arch structure, the front lock rod penetrates through an arch part of the pinch plate along the front-back direction, the front lock rod is in clearance fit with the arch part, and therefore the front lock rod can slide back and forth on the door plate and swing left and right relative to the door plate;

the rod body of the rear lock rod is also connected with the door plate through a pinch plate, so that the rear lock rod can slide back and forth on the door plate and swing left and right relative to the door plate.

Further, the secondary lock further comprises a locking component;

the hook is provided with a hook-shaped part and a mounting part;

the hook-shaped part is of a downward hook structure, the mounting part is a groove extending up and down, and the hook-shaped part is fixedly arranged at the upper end of the mounting part;

the locking component comprises a spring and a pressing unlocking block, the pressing unlocking block is a block-shaped component, and the lower end of the pressing unlocking block is provided with a notch; the pressing unlocking block is rotationally connected in the mounting part and is elastically connected with the mounting part through the spring;

when the hook is in the downward retraction state, the pressing unlocking block and the mounting part are both positioned in the slideway, and the spring has elasticity on the pressing unlocking block;

the couple is in during the state of upwards stretching out, press the unlocking piece and rotate for the installation department under the effect of spring, press the breach card of unlocking piece and establish the up end at the slide, and then constitute the mutual locking of couple and support.

Furthermore, a limiting guide groove is also arranged in the bracket; the limiting guide groove is arranged in the slide way along the up-down direction;

two bolts are communicated in the left and right sides of the groove of the mounting part, and the head parts of the bolts are arranged outside the mounting part to form a limiting block matched with the limiting guide groove.

Further, the second lock further comprises a fixing plate; the fixed plate is rotatably connected with the lower end of the bracket; meanwhile, the bracket and the fixing plate are elastically connected through a torsional spring.

The relevant content in the above technical solution is explained as follows:

1. in the scheme, the rotary lock cylinder in the lock is a lock in the prior art, a key is inserted to rotate for unlocking, the internal structure is not detailed, and the rotary lock cylinder in the scheme is characterized in that a connecting rod is connected to a rotating shaft of the rotary lock cylinder, and the connecting rod can rotate along with the rotating shaft when the rotary lock cylinder is unlocked.

2. In the above scheme, in the first lock, the front lock rod and the rear lock rod are both arranged on the door panel in a sliding manner, and the sliding motion of the front lock rod and the rear lock rod is a composite motion of front-back sliding and left-right swinging;

and unlocking the lock, rotating the rotary lock cylinder 1 to drive the connecting rod 4 to rotate, wherein the first end of the connecting rod 4 rotates leftwards in the rotating process and drives the front lock rod 2 to do combined motion of backward sliding and leftward swinging, and the second end of the connecting rod 4 rotates rightwards and drives the rear lock rod 3 to do combined motion of forward sliding and rightward swinging.

3. In the above solution, the front end of the front lock rod is set up on the front side of the door frame, and the rear end of the rear lock rod is set up on the rear side of the door frame, so that in the locked state, the door panel cannot rotate downward relative to the door frame, and the door panel is closed in the door frame.

4. In the scheme, when the two locks are locked by the first lock, the hook and the baffle are in a non-contact state, and the hook is in a downward retraction state in the slideway of the bracket;

when the first lock is unlocked, the door plate rotates downwards until the hook is in contact with the baffle, the hook is blocked by the baffle, the support moves downwards along with the door plate, the hook slides upwards relative to the slideway and extends upwards, when the hook slides to the upper limit, the door plate cannot continue to rotate downwards, and at the moment, the second lock is in a locking state.

5. In the scheme, the locking part is positioned on the hook, the locking part and the hook slide up and down in the slideway of the bracket together, and the hook-shaped part of the hook is always positioned outside the slideway in the sliding process; the spring acts between the pressing unlocking block and the mounting part;

when the hook is in a downward retraction state in the support, the pressing unlocking block is positioned in the slideway and is clamped between the mounting part of the hook and the inner wall of the slideway, and the spring is in a compression state under the state;

when the locking part moves upwards in the slide way along with the hook until the hook is in an upwards extending state, the pressing unlocking block is not restrained by the inner wall of the slide way any more and is popped up under the action of the spring, and the notch is clamped on the upper end surface of the slide way, so that the mutual locking between the second locking part and the first locking part is formed;

during unlocking, an operator applies force to the pressing unlocking block, so that the pressing unlocking block overcomes the elastic force of the spring to rotate, the notch is separated from the upper end face of the slide way, and unlocking is completed.

6. In the scheme, the front lock plate is arranged on the front side of the door frame, and the front end of the front lock rod is erected on the front lock plate in a locking state; the rear lock plate is arranged at the rear side of the door frame, and the rear end of the rear lock rod is erected on the rear lock plate in a locking state; therefore, damage to the door frame caused by extrusion of the front lock rod and the rear lock rod in the door plate closing state is reduced.

The working principle of the utility model is as follows:

The utility model has the advantages as follows:

the first lock is matched with the second lock, the first lock enables the door plate to have a reliable closing state, the second lock ensures the safety of the door plate when the door plate is opened, and the door plate is prevented from smashing an operator.

And the hook can stretch up and down in a certain range, so that enough unlocking space can be provided, and the hook can be prevented from being damaged due to too long movement stroke and too large impact force.

Drawings

FIG. 1 is a perspective view of the embodiment of the present invention, wherein the first lock and the second lock are both in a locked state, and the door panel is closed;

FIG. 2 is a perspective view of the embodiment of the present invention, wherein the first lock is unlocked, the second lock is unlocked, and the door panel is closed;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a perspective view of the embodiment of the present invention in which the first lock is unlocked, the second lock is not unlocked, and the door panel is in a downward rotation state;

FIG. 5 is a perspective view of the embodiment of the present invention showing one lock unlocking, two locks unlocking, and the door panel rotating downward;

fig. 6 is a perspective view of a hook lock in an embodiment of the present invention;

fig. 7 is a perspective view of a bracket according to an embodiment of the present invention;

fig. 8 is an exploded view of a hook lock in an embodiment of the present invention;

fig. 9 is a schematic view of the embodiment of the present invention, wherein the door panel is locked with the door frame and the hook lock is in a downward retraction state;

FIG. 10 is a schematic view of the hook lock in a downwardly retracted position in relation to the stop plate according to an embodiment of the present invention;

fig. 11 is a schematic view of the door panel and the door frame unlocked, the hook lock is in an upward extending state, and the hook lock and the baffle are not unlocked in the embodiment of the present invention;

FIG. 12 is a schematic view of the position relationship between the hook lock and the baffle when the hook lock is in an upward extending state according to the embodiment of the present invention;

fig. 13 is a schematic view of the door panel and the door frame unlocked, the hook lock is in an upward extending state, and the hook lock and the baffle are unlocked according to the embodiment of the present invention;

fig. 14 is a schematic diagram of the position relationship between the hook lock and the baffle when the hook lock is in the upward extending state and the hook lock and the baffle are unlocked from each other according to the embodiment of the present invention;

fig. 15 is a schematic view of the embodiment of the present invention, wherein the door panel is rotated upward, and the hook lock is locked with the baffle;

fig. 16 is a schematic diagram of the position relationship between the hook lock and the baffle plate when the hook lock and the baffle plate are locked according to the embodiment of the present invention.

In the above drawings: 1. rotating the lock cylinder; 2. a front lock lever; 3. a rear lock lever; 4. a connecting rod; 5. a front lock plate; 6. a rear lock plate; 7. buckling the plate; 8. hooking; 9. a support; 10. a baffle plate; 11. a slideway; 12. a hook portion; 13. an installation part; 14. a spring; 15. pressing the unlocking block; 16. a notch; 17. a limiting guide groove; 18. a bolt; 19. a fixing plate; 20. a torsion spring; 21. a door panel; 22. a door frame; 23. a tension spring.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the disclosure may be shown and described, and which, when modified and varied by the techniques taught herein, can be made by those skilled in the art without departing from the spirit and scope of the disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms "a", "an", "the" and "the", as used herein, also include the plural forms.

The terms "first," "second," and the like, as used herein, do not denote any order or importance, nor do they denote any order or importance, but rather are used to distinguish one element from another element or operation described in such technical terms.

As used herein, "connected" or "positioned" refers to two or more elements or devices being in direct physical contact with each other or in indirect physical contact with each other, and may also refer to two or more elements or devices being in operation or acting on each other.

As used herein, the terms "comprising," "including," "having," and the like are open-ended terms that mean including, but not limited to.

As used herein, the term (terms), unless otherwise indicated, shall generally have the ordinary meaning as commonly understood by one of ordinary skill in the art, in this written description and in the claims. Certain words used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure.

The terms "front", "rear", "upper", "lower", "left" and "right" used herein are directional terms, and are used only for describing the positional relationship between the structures, and are not intended to limit the specific direction of the protective reaction and the practical implementation of the present invention.

Example (b): referring to fig. 1 to 16, a secondary unlocking structure of a door panel 21 includes a first lock and a second lock;

the lock comprises a rotary lock core 1, a front lock rod 2, a front lock plate 5, a rear lock rod 3 and a rear lock plate 6;

the rotary lock cylinder 1 is arranged in the door panel 21 in a penetrating way; the front lock rod 2 and the rear lock rod 3 are arranged on the door panel 21 in a sliding and swinging mode, the front lock rod 2 is arranged on the front side of the rotary lock cylinder 1, and the rear lock rod 3 is arranged on the rear side of the rotary lock cylinder 1; the front lock plate 5 and the rear lock plate 6 are both arranged on a door frame 22 matched with the door panel 21, the front lock plate 5 is positioned on the front side of the door frame 22, and the rear lock plate 6 is positioned on the rear side of the door frame 22;

a connecting rod 4 is arranged at the upper end of a rotating shaft of the rotary lock cylinder 1, the first end of the connecting rod 4 is in pivot connection with the rear end of the front lock rod 2, and the second end of the connecting rod 4 is in pivot connection with the front end of the rear lock rod 3;

the rod body of the front lock rod 2 is connected with the door plate 21 through a pinch plate 7, two ends of the pinch plate 7 are fixed on the door plate 21, the middle of the pinch plate 7 is of an arch structure, the front lock rod 2 penetrates through an arch part of the pinch plate 7 along the front-back direction, the front lock rod 2 is in clearance fit with the arch part, and therefore the front lock rod 2 can slide back and forth on the door plate 21 and swing relative to the door plate 21;

the rod body of the rear lock rod 3 is connected with the door plate 21 through a buckle plate 7, the buckle plate 7 is of an arch structure, the rear lock rod 3 penetrates through an arch part of the buckle plate 7 along the front-back direction, the rear lock rod 3 is in clearance fit with the arch part, and the rear lock rod 3 can slide back and forth on the door plate 21 and swing relative to the door plate 21;

in the locked state, the front end of the front lock lever 2 is placed on the front lock plate 5, and the rear end of the rear lock lever 3 is placed on the rear lock plate 6, thereby locking the door panel 21 to the door frame 22 in the front-rear direction.

As shown in fig. 6 to 8, the two-way lock comprises a hook 8, a bracket 9, a locking component, a fixing plate 19 and a baffle plate 10;

a slide way 11 and a limiting guide groove 17 are arranged in the support 9;

the slideway 11 is a cavity channel in the bracket 9, the extending direction of the slideway 11 is defined as the up-down direction, and the limiting guide groove 17 is arranged in the slideway 11 along the up-down direction;

the bracket 9 is rotatably connected to the fixing plate 19; the fixed plate 19 is rotatably connected with the lower end of the bracket 9; meanwhile, the bracket 9 and the fixed plate 19 are elastically connected through a torsion spring 20;

the hook 8 is provided with a hook-shaped part 12 and a mounting part 13;

the hook-shaped part 12 is of a downward hook structure, the hook-shaped part 12 is fixedly arranged at the upper end of the mounting part 13, the mounting part 13 is a groove extending up and down, two bolts 18 penetrate through the groove from left to right, and the head parts of the bolts 18 are arranged at the outer side of the mounting part 13 to form a limiting block matched with the limiting guide groove 17; the upper end surface of the hook-shaped part 12 and the lower end surface of the baffle plate 10 are inclined surfaces;

the baffle 10 is arranged on the door frame 22 and corresponds to the hook 8;

the hook 8 slides in the bracket 9, and the limiting block slides in the limiting guide groove 17; meanwhile, the hook 8 and the bracket 9 are elastically connected through a tension spring 23;

the locking component comprises a spring 14 and a pressing unlocking block 15, the pressing unlocking block 15 is a block-shaped component, and the lower end of the pressing unlocking block 15 is provided with a notch 16;

the pressing unlocking block 15 is rotatably connected in the mounting part 13 and is elastically connected with the mounting part 13 through the spring 14, one end of the spring 14 acts on the lower part of the pressing unlocking block 15, and the other end of the spring 14 acts on the hook 8, so that torque is applied to the pressing unlocking block 15, and the pressing unlocking block has a rotating trend;

the hook 8 and the locking part are connected in the slideway 11 in a sliding manner along the up-down direction, and the hook 8 has an upward extending state and a downward retracting state in the sliding process;

when the hook 8 is in the downward retraction state, the limiting block is positioned at the lower end of the limiting guide groove 17, the pressing unlocking block 15 and the mounting part 13 are both positioned in the slideway 11, the pressing unlocking block 15 is clamped between the mounting part 13 and the inner wall of the slideway 11, the spring 14 is in a compression state, and the spring 14 exerts elastic force on the pressing unlocking block 15;

couple 8 is in during the state of upwards stretching out, the stopper is located the upper end of spacing guide way 17, press and release locking piece 15 and break away from slide 11, under spring 14's effect, press and release locking piece 15 and rotate and pop out for installation department 13 and press and release locking piece 15, press the breach 16 card of releasing locking piece 15 and establish the up end at slide 11, prevent couple 8 lapse in support 9, couple 8 receives the decurrent pulling force of extension spring 23 this moment, nevertheless because the 16 cards of breach of locking part establish on the exit end face of slide 11, make couple 8 unable lapse, simultaneously because the stopper is located the upper end of spacing guide way 17, couple 8 can't upwards slide.

The door opening process:

the first step is as follows: as shown in fig. 1, in one lock, a connecting rod 4 of the rotary lock cylinder 1 initially extends in the front-rear direction, the front end of the front lock rod 2 is erected above the front lock plate 5, and the rear end of the rear lock rod 3 is erected above the rear lock plate 6, so as to form a mutual locking of the door plate 21 and the door frame 22 in the up-down direction;

in the second lock, as shown in fig. 9 and 10, the hook 8 is initially in the downward retraction state, the door panel 21 is closed with the door frame 22, the hook 8 is pulled downward by the tension spring 23, so that the limit block on the hook 8 is located at the lower end of the limit guide groove 17, the locking component is located between the installation part 13 and the inner wall of the slide rail 11, only the hook-shaped part 12 of the hook 8 is exposed above the outlet end face of the slide rail 11, and the baffle 10 fixedly connected to the door frame 22 is located below the hook-shaped part 12.

The second step is that: as shown in fig. 2 and fig. 3, one lock is unlocked, the rotary lock cylinder 1 is rotated to drive the connecting rod 4 to rotate, the first end of the connecting rod 4 rotates to the left and drives the front lock rod 2 to move backwards in the rotating process, the second end of the connecting rod 4 rotates to the right and drives the rear lock rod 3 to move forwards, the front lock rod 2 moves backwards to be a composite motion of sliding backwards and swinging to the left, and the rear lock rod 3 moves forwards to be a composite motion of sliding forwards and swinging to the right; the front lock rod 2 moves backwards relative to the front lock plate 5 until the front end of the front lock rod 2 leaves the front lock plate 5, and the rear lock rod 3 moves forwards relative to the rear lock plate 6 until the rear end of the rear lock rod 3 leaves the rear lock plate 6;

after the first lock is unlocked, the door panel 21 is rotated downward relative to the doorframe 22; as shown in fig. 11 and 12, in the second lock, the hook 8 moves downward relative to the baffle 10, the hook portion 12 is pulled upward by the baffle 10 during the movement, so that the hook 8 and the locking member slide upward in the slideway 11 until the stopper on the hook 8 slides to the upper end of the limiting guide groove 17, at this time, the hook 8 is limited and cannot move upward continuously, the locking member is separated from the slideway 11 and is not limited by the inner wall of the slideway 11, the unlocking block 15 is pressed to rotate in the mounting portion 13 under the elastic force of the spring 14, and the notch 16 is clamped on the outlet end face of the slideway 11, so that the hook 8 and the locking member are in a locking state.

The third step: as shown in fig. 4, 5, 11 to 14, after the operator leaves the rotation range of the door panel 21, the operator inserts a tool or a hand into the gap between the door panel 21 and the door frame 22, and pulls the bracket 9 to rotate away from the baffle 10 against the elastic force of the torsion spring 20, so that the hook 12 leaves the baffle 10 in the up-down direction, and at this time, the operator can continue to rotate the door panel 21 downward.

The door closing process:

the door panel 21 is rotated upward relative to the door frame 22;

as shown in fig. 15 and 16, in the second lock, the bracket 9 has a tendency of rotating towards the shutter 10 due to the torsion force of the torsion spring 20, when the door is closed, the shutter 10 presses the hook 12 downward, and because the upper end surface of the hook 12 is an inclined surface, the downward force of the shutter 10 on the hook 12 is converted into the torsion force for driving the hook 12 to rotate, so that the hook 8 and the bracket 9 rotate relative to the second pin shaft until the hook 12 avoids the shutter 10, and then the door panel 21 can continue to rotate upward until the door panel is closed with the door frame 22, when the door is closed, the bracket 9 receives the torsion force of the torsion spring 20, rotates close to the shutter 10, and the hook 12 returns to the upper side of the shutter 10;

in one lock, when the door panel 21 is closed with the door frame 22, the rotary lock cylinder 1 is rotated, the front lock rod 2 moves forwards until the front end of the front lock rod 2 is erected on the front lock plate 5, and the rear lock rod 3 moves backwards until the rear end of the rear lock rod 3 is erected on the rear lock plate 6.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a door plant secondary unlocking structure which characterized in that: comprises a first lock and a second lock;

the lock comprises a rotary lock cylinder (1), a front lock rod (2) and a rear lock rod (3);

the rotary lock cylinder (1) is arranged in the door plate (21) in a penetrating manner, and the upper end of a rotating shaft of the rotary lock cylinder (1) is provided with a connecting rod (4);

the front lock rod (2) and the rear lock rod (3) are both arranged on the door panel (21) in a sliding manner, and the rear end of the front lock rod (2) is in pivot connection with the first end of the connecting rod (4); the front end of the rear lock rod (3) is pivotally connected with the second end of the connecting rod (4);

in a locking state, the front end of the front lock rod (2) is erected on the front side of a door frame (22), and the rear end of the rear lock rod (3) is erected on the rear side of the door frame (22);

the secondary lock comprises a hook (8), a bracket (9) and a baffle (10);

the support (9) is rotatably arranged on the door panel (21), a slide way (11) is arranged in the support (9), the slide way (11) is a cavity channel in the support (9), and the extending direction of the slide way (11) is defined to be the up-down direction; the hook (8) is arranged in the slideway (11) in a vertically sliding manner, and the hook (8) has an upward extending state and a downward retracting state;

the baffle (10) is arranged on the door frame (22) and corresponds to the hook (8).

2. The door panel secondary unlocking structure of claim 1, wherein: the lock also comprises a front lock plate (5) and a rear lock plate (6);

the front lock plate (5) and the rear lock plate (6) are both arranged on a door frame (22) matched with the door panel (21), the front lock plate (5) is positioned on the front side of the door frame (22), and the rear lock plate (6) is positioned on the rear side of the door frame (22);

under the locking state, the front end of the front lock rod (2) is erected on the front lock plate (5), and the rear end of the rear lock rod (3) is erected on the rear lock plate (6).

3. The door panel secondary unlocking structure of claim 1, wherein: the rod body of the front lock rod (2) is connected with the door plate (21) through a pinch plate (7), two ends of the pinch plate (7) are fixed on the door plate (21), the middle of the pinch plate is of an arch structure, the front lock rod (2) penetrates through an arch part of the pinch plate (7) along the front-back direction, the front lock rod (2) is in clearance fit with the arch part, and therefore the front lock rod (2) can slide back and forth on the door plate (21) and swing left and right relative to the door plate (21);

the rod body of the rear lock rod (3) is also connected with the door panel (21) through a pinch plate (7), so that the rear lock rod (3) can slide back and forth on the door panel (21) and swing left and right relative to the door panel (21).

4. The door panel secondary unlocking structure of claim 1, wherein: the secondary lock also comprises a locking component;

the hook (8) is provided with a hook-shaped part (12) and a mounting part (13);

the hook-shaped part (12) is of a downward hook structure, the mounting part (13) is a groove extending up and down, and the hook-shaped part (12) is fixedly arranged at the upper end of the mounting part (13);

the locking component comprises a spring (14) and a pressing unlocking block (15), the pressing unlocking block (15) is a block-shaped component, and a notch (16) is formed in the lower end of the pressing unlocking block; the pressing unlocking block (15) is rotationally connected in the mounting part (13) and is elastically connected with the mounting part (13) through the spring (14);

when the hook (8) is in the downward retraction state, the pressing unlocking block (15) and the mounting part (13) are both positioned in the slideway (11), and the spring (14) has elasticity on the pressing unlocking block (15);

couple (8) are in during the state of upwards stretching out, press unlocking block (15) and rotate for installation department (13) under the effect of spring (14), press breach (16) card of unlocking block (15) and establish the up end at slide (11), and then constitute the mutual locking of couple (8) and support (9).

5. The door panel secondary unlocking structure of claim 4, wherein: a limiting guide groove (17) is also arranged in the bracket (9); the limiting guide groove (17) is arranged in the slide way (11) along the up-down direction;

two bolts (18) penetrate through the left side and the right side in the groove of the mounting part (13), and the heads of the bolts (18) are arranged on the outer side of the mounting part (13) to form a limiting block matched with the limiting guide groove (17).

6. The door panel secondary unlocking structure of claim 1, wherein: the secondary lock further comprises a fixing plate (19); the fixed plate (19) is rotatably connected with the lower end of the bracket (9); meanwhile, the bracket (9) and the fixing plate (19) are elastically connected through a torsion spring (20).