CN210105515U

CN210105515U - Door-in-door lock

Info

Publication number: CN210105515U
Application number: CN201721890740.2U
Authority: CN
Inventors: 应军
Original assignee: Yongkang Yongming Hardware Accessories Factory
Current assignee: Yongkang Yongming Hardware Accessories Factory
Priority date: 2017-12-29
Filing date: 2017-12-29
Publication date: 2020-02-21
Anticipated expiration: 2027-12-29

Abstract

The utility model discloses a door lock in door, which comprises a side panel, a latch bolt assembly, a lock box, a main lock bolt, a rotating block assembly and a shifting plate assembly, wherein the side panel is connected with the lock box, the side panel is provided with a main lock bolt hole and a latch bolt hole, and the latch bolt assembly is arranged in the lock box; the rotating block assembly and the shifting plate assembly are arranged in the lock box, one end of a main spring bolt is matched with a main spring bolt hole in the side panel, a planker is arranged at the other end of the main spring bolt and arranged above the rotating block assembly, an elongated slot, a waist-shaped guide hole and a shifting stopping slot are formed in the planker, a notch is formed in the shifting stopping slot, a first connecting column is fixedly connected inside the lock box, and the first connecting column is connected in the waist-shaped guide hole in a sliding mode. The door lock in the door has the characteristics of simple structure, automatic locking when closed and simple operation; stir the setting of stopping inslot breach, when main spring bolt is the open mode, the protruding hook is in the breach, ensures that main spring bolt is not higher than side board terminal surface, guarantees the normal of tool to lock and closes.

Description

Door-in-door lock

Technical Field

The utility model relates to a tool to lock technical field, in particular to lock in door.

Background

The existing anti-theft door is characterized in that a small door for ventilation, namely a door-in-door, is arranged on the anti-theft door, and indoor ventilation can be increased by opening the door-in-door. The existing door-in-door usually adopts a lockset with a lock tongue for opening or closing the door-in-door, and after the door is closed, the lockset can lock a main lock tongue by rotating a knob to close the door-in-door. By adopting the lockset, the operation is complex when the door-in-door is closed, and the convenient requirement can not be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure can automatic locking's lock in door when closing.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a door lock in a door comprises a side panel, an oblique bolt assembly, a lock box, a main bolt, a rotating block assembly and a shifting plate assembly, wherein the side panel is connected with the lock box, the side panel is provided with a main bolt hole and an oblique bolt hole, and the oblique bolt assembly is arranged in the lock box; the rotating block assembly and the shifting plate assembly are arranged in the lock box, one end of a main spring bolt is matched with a main spring bolt hole on the side panel, the other end of the main spring bolt is provided with a planker, the planker is arranged above the rotating block assembly, the planker is provided with a long groove, a kidney-shaped guide hole and a shifting stopping groove, a notch is formed in the shifting stopping groove, a first connecting column is fixedly connected inside the lock box, and the first connecting column is connected in the kidney-shaped guide hole in a sliding mode; the rotary block assembly comprises a rotary block, a latch bolt shifting fork, a carriage shifting fork and a limiting shifting fork, wherein the limiting shifting fork, the carriage shifting fork and the latch bolt shifting fork are sequentially sleeved on the rotary block, a limiting blocking piece and a limiting blocking hook are arranged on the limiting shifting fork, and when the main lock tongue is in an ejected state, the limiting blocking piece is just abutted against the first connecting column; the carriage shifting fork is provided with a lug and a convex hook, the lug is abutted against the limit stop hook, and the convex hook is arranged in a shifting backstop groove on the carriage; the latch bolt shifting fork is provided with a shifting piece which is matched with the latch bolt assembly; the shifting plate assembly comprises a shifting plate, a clasp, a buckle hook spring, a shifting plate spring, a first hinge pin, a second hinge pin and a second connecting column, the first hinge pin and the second connecting column are fixedly arranged in the lock box, the second shifting plate hinge pin is hinged with the clasp, one end of the shifting plate is matched with the latch bolt assembly, the clasp is hinged in the lock box through the first hinge pin, one end of the clasp is provided with a hook, the hook is matched with a convex hook of a carriage shifting fork, the clasp spring is sleeved on the second connecting column, one end of the buckle hook spring is abutted on the clasp, the other end of the clasp spring is abutted on the lock box, the shifting plate spring is sleeved on the second hinge pin, one end of the shift plate spring is abutted on the shifting plate, and the other end of the shifting plate spring is abutted on the clasp; a tension spring is arranged on a convex hook of the carriage shifting fork, a third connecting column is fixedly arranged in the lock box, one end of the tension spring is connected to the convex hook, and the other end of the tension spring is connected to the third connecting column.

As an improvement of the utility model, the clip is the font and includes rocking arm one and rocking arm two, be equipped with at rocking arm one and rocking arm two's cross end with a hinge pin complex hinge hole one, be equipped with the hook at rocking arm one's free end, the one end of detaining the hook spring supports on the inner wall of lock box, the other end of detaining the hook spring supports on rocking arm two, rocking arm two's free end is equipped with hinge hole two, the one end of dialling the board is equipped with hinge hole three, hinge hole two and hinge hole three realize articulatedly through hinge pin two, the one end of dialling the board spring supports on rocking arm two, the other end of dialling the leaf spring supports on dialling the board, the other end of dialling the board is equipped with dials hook and direction swash plate, dial the piece and dial the hook and cooperate, the direction swash plate cooperatees with the tip of dialling.

As an improvement of the utility model, one side of the toggle hook facing the toggle piece is an inclined plane.

As an improvement of the utility model, the end of the shifting piece is an inclined plane matched with the guide sloping plate.

As an improvement of the utility model, be equipped with shaft hole one on the spacing shift fork, spacing shift fork passes through a shaft hole dress on the commentaries on classics piece, and spacing shift fork rotates with the commentaries on classics piece is synchronous, has seted up shaft hole two on the planker shift fork, and the planker shift fork passes through shaft hole two and adorns on the commentaries on classics piece, is equipped with shaft hole three on the latch bolt shift fork, and the latch bolt shift fork passes through shaft hole three and adorns on the commentaries on classics piece, and the commentaries on classics piece axial has been seted up and has been turned round the hole, and the commentaries on classics piece rotates to be connected on the lock box.

As an improvement of the utility model, the first lug on the second shaft hole and the second lug on the third shaft hole have a position difference.

As an improvement of the utility model, the oblique tongue assembly includes spring, stirring piece, oblique tongue axle and oblique tongue, is equipped with the guide plate in the lock box, and the one end of spring is supported on the guide plate, and the other end of spring supports on the oblique tongue, and the one end of oblique tongue axle links to each other with oblique tongue, and the other end of oblique tongue axle links to each other with stirring piece.

When a key or a handle opens the latch bolt, the rotating block firstly drives the limiting shifting fork and the carriage shifting fork to rotate together, the protruding hook on the carriage shifting fork shifts the carriage, the main latch bolt retracts, the protruding hook is mutually clamped with the hook on the clasp under the action of the clasp spring, the protruding hook is positioned in the notch, the main latch bolt is in an open state, and the main latch bolt is ensured not to be higher than the end surface of the side panel; the rotating block is continuously rotated to drive the latch bolt shifting fork to rotate, the shifting sheet on the latch bolt shifting fork shifts the shifting sheet of the latch bolt assembly, and the latch bolt retracts to be in an open state.

When the main lock tongue is in an opening state, the latch bolt retracts under the action of external force when the door is closed, a shifting piece of a latch bolt assembly is clamped with a shifting hook on a shifting plate under the action of a shifting plate spring, the latch bolt assembly moves outwards under the action of a spring to drive the shifting plate to drive a rocker arm II on a clasp connected with the shifting plate to rotate, a hook on a rocker arm I rotates together until the hook is separated from a convex hook on a planker shifting fork, the planker and the main lock tongue are shifted by the convex hook under the action of restoring force of a tension spring, the main lock tongue pops out, a guide inclined plate on the shifting plate can rotate by taking the axis of a hinge pin II as a rotation center after abutting against the end surface of a shifting piece on the latch bolt shifting fork, until the shifting piece of the latch bolt assembly is separated from the shifting hook of the shifting plate, the latch bolt pops out under the.

To sum up, the utility model discloses following beneficial effect has:

the structure is simple, the automatic locking is realized when the door is closed, and the operation is simple; stir the setting of stopping inslot breach, when main spring bolt is the open mode, the protruding hook is in the breach, ensures that main spring bolt is not higher than side board terminal surface, guarantees the normal of tool to lock and closes.

Drawings

FIG. 1 is an exploded view of a door lock in a door;

in the figure, 1, side panel; 1a, a main lock bolt hole, 2 and an oblique bolt assembly; 2a, a spring; 2b, a poking sheet; 3. a lock case; 3a, connecting a column I; 3b, connecting a second column; 3c, a first hinge pin; 3d, a guide sheet; 3e, connecting a column III; 4. dialing a plate; 4a, a third hinge hole; 4b, a poking hook; 4c, a guide inclined plate; 5. a clasp; 5a, a first rocker arm; 5b, a second rocker arm; 5c, a first hinge hole; 5d, hooking; 5e, a second hinge hole; 6. a hook spring is buckled; 7. pulling a plate spring; 8. a second hinge pin; 9. a latch bolt shifting fork; 9a and a third shaft hole; 9a1, lug two; 9b, a shifting sheet; 10. a carriage shifting fork; 10a and a second shaft hole; 10a1, lug one; 10b, a tab; 10c, a convex hook; 11. a limiting shifting fork; 11a, a first shaft hole; 11b, a limiting baffle plate; 11c, a limit stop hook; 12. a carriage; 12a, a long groove; 12b, a kidney-shaped guide hole; 12c, shifting the retaining groove; 12c1, notch; 13. a main bolt; 14. rotating the block; 14a, a torque hole; 15. a tension spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1, a door lock in a door comprises a side panel 1, a latch bolt assembly 2, a lock box 3, a main lock bolt 13, a rotating block assembly and a shifting plate assembly, wherein the side panel 1 is connected with the lock box 3, the side panel 1 is provided with a main lock bolt hole 1a and a latch bolt hole, the latch bolt assembly 2 is arranged in the lock box 3 and moves telescopically under the action of the rotating block assembly and the shifting plate assembly; the rotary block assembly and the shifting plate assembly are arranged in the lock box 3, one end of a main bolt 13 is matched with a main bolt hole 1a on the side panel 1, a dragging plate 12 is arranged at the other end of the main bolt 13, the dragging plate 12 is arranged above the rotary block assembly, an elongated slot 12a, a kidney-shaped guide hole 12b and a shifting stopping slot 12c are formed in the dragging plate 12, a notch 12c1 is formed in the shifting stopping slot 12c, a connecting column I3 a is fixedly connected inside the lock box 3, and the connecting column I3 a is connected in the kidney-shaped guide hole 12b in a sliding mode.

The oblique tongue assembly comprises a spring 2a, a poking piece 2b, an oblique tongue shaft and an oblique tongue, a guide piece 3d is arranged in the lock box 3, one end of the spring 2a abuts against the guide piece 3d, the other end of the spring 2a abuts against the oblique tongue, one end of the oblique tongue shaft is connected with the oblique tongue, and the other end of the oblique tongue shaft is connected with the poking piece 2 b;

the rotating block assembly comprises a rotating block 14, a latch bolt shifting fork 9, a carriage shifting fork 10 and a limiting shifting fork 11, wherein the limiting shifting fork 11, the carriage shifting fork 10 and the latch bolt shifting fork 9 are sequentially sleeved on the rotating block 14, and the limiting shifting fork 11, the carriage shifting fork 10 and the latch bolt shifting fork 9 can be driven by the rotating block 14 to rotate; the limiting shifting fork 11 is provided with a first shaft hole 11a, the limiting shifting fork 11 is installed on the rotating block 14 through the first shaft hole 11a, the limiting shifting fork 11 and the rotating block 14 rotate synchronously, the limiting shifting fork 11 is provided with a limiting blocking piece 11b and a limiting blocking hook 11c, and when the main bolt 13 is in an ejected state, the limiting blocking piece 11b just abuts against the first connecting column 3 a; the planker shifting fork 10 is provided with a second shaft hole 10a, the planker shifting fork 10 is arranged on the rotating block 14 through the second shaft hole 10a, the planker shifting fork 10 is provided with a convex piece 10b and a convex hook 10c, the convex piece 10b abuts against a limit stop hook 11c, the convex hook 10c is arranged in a shifting backstop groove 12c on the planker 12, when the planker shifting fork 10 rotates, the convex hook 10c shifts the planker 12, and the planker 12 drives the main bolt 13 to retract into the lock box 3; the latch bolt shifting fork 9 is provided with a shaft hole III 9a and a shifting piece 9b, the latch bolt shifting fork 9 is arranged on the rotating block 14 through the shaft hole III 9a, and the shifting piece 9b is matched with the latch bolt assembly 2 to shift the latch bolt assembly 2 to retract; the rotating block 14 is axially provided with a rotating hole 14a, the cross section of the rotating block 14 is similar to a long waist shape, and the rotating block 14 is rotationally connected to the lock box 3; a first lug 10a1 is arranged on the inner wall of a second shaft hole 10a of the planker shifting fork 10, a second lug 9a1 is arranged on the inner wall of a third shaft hole 9a of the latch bolt shifting fork 9, a first lug 10a1 on the second shaft hole 10a and a second lug 9a1 on the third shaft hole 9a have a position difference, when the rotating block 14 rotates, the planker shifting fork 10 is driven to rotate, a convex hook 10c on the planker shifting fork 10 shifts the planker 12, and the main latch bolt 13 is in an open state; the rotating block 14 continues to rotate to drive the latch bolt shifting fork 9 to rotate, the latch bolt assembly 2 is shifted, and the latch bolt assembly 2 is opened;

the shifting plate assembly comprises a shifting plate 4, a clasp 5, a clasp spring 6, a shifting plate spring 7, a first hinge pin 3c, a second hinge pin 8 and a second connecting column 3b, wherein the first hinge pin 3c and the second connecting column 3b are fixedly connected in the lock box 3, the clasp 5 is L-shaped and comprises a first rocker arm 5a and a second rocker arm 5b, a first hinge hole 5c matched with the first hinge pin 3c is formed in the cross end of the first rocker arm 5a and the second rocker arm 5b, a hook 5d is arranged at the free end of the first rocker arm 5a, the hook 5d is matched with a convex hook 10c of the planker shifting fork 10, the clasp spring 6 is sleeved on the second connecting column 3b, one end of the clasp spring 6 abuts against the inner wall of the lock box 3, the other end of the clasp spring 6 abuts against the second rocker arm 5b, the convex hook 10c shifts the planker 12 to enable the lock tongue 13 to retract, the clasp 5 returns to the direction of the hook 5d under the action of the clasp spring 6, and the convex hook 10c is clamped with the hook, the main bolt 13 is in an open state; the free end of the second rocker arm 5b is provided with a second hinge hole 5e, one end of the shifting plate 4 is provided with a third hinge hole 4a, the second hinge hole 5e and the third hinge hole 4a are hinged through a second hinge pin 8, the second hinge pin 8 is further sleeved with a shifting plate spring 7, one end of the shifting plate spring 7 abuts against the second rocker arm 5b, the other end of the shifting plate spring 7 abuts against the shifting plate 4, the other end of the shifting plate 4 is provided with a shifting hook 4b and a guide inclined plate 4c, the shifting piece 2b is matched with the shifting hook 4b, the shifting plate 4 is pushed open when the shifting piece 2b retracts, one side of the shifting hook 4b facing the shifting piece 2b is an inclined plane, the shifting piece 9b on the inclined tongue shifting fork 9 acts on the shifting piece 2b, and the shifting piece 2b drives the inclined tongue to move; the guide inclined plate 4c is matched with the end part of the shifting piece 9b, and preferably, the end part of the shifting piece 9b is an inclined surface and matched with the guide inclined plate 4 c.

A tension spring 15 is arranged on a convex hook 10c of the carriage shifting fork 10, one end of the tension spring 15 is connected to the convex hook 10c of the carriage shifting fork 10, the other end of the tension spring 15 is connected to a connecting column III 3e, and the connecting column III 3e is fixedly connected in the lock box 3; when the convex hook 10c is separated from the hook 5d, the convex hook 10c drags the planker 12 under the action of the tension spring 15, and the main bolt 13 is ejected.

When a key or a handle opens the latch bolt, the rotating block 14 firstly drives the limit shifting fork 11 and the carriage shifting fork 10 to rotate together, the convex hook 10c on the carriage shifting fork 10 shifts the carriage 12, the main lock tongue 13 retracts, the convex hook 10c is mutually clamped with the hook 5d on the clasp 5 under the action of the clasp spring 6, the convex hook 10c is positioned in the notch 12c1, the main lock tongue 13 is in an open state, and the main lock tongue 13 is ensured not to be higher than the end surface of the side panel 1; the rotating block 14 is continuously rotated, the rotating block 14 drives the latch bolt shifting fork 9 to rotate, the shifting piece 9b on the latch bolt shifting fork 9 shifts the shifting piece 2b of the latch bolt assembly 2, and the latch bolt retracts to be in an open state.

When the main bolt 13 is in an open state, when the door is closed, the latch bolt retracts under the action of external force, the toggle piece 2b of the latch bolt assembly 2 is clamped with the toggle hook 4b on the toggle plate 4 under the action of the toggle plate spring 7, the latch bolt assembly 2 moves outwards under the action of the spring 2a to drive the toggle plate 4 to drive the rocker arm two 5b on the clasp 5 connected with the toggle plate 4 to rotate, the hook 5d on the rocker arm one 5a rotates together until being separated from the convex hook 10c on the carriage fork 10, the convex hook 10c under the action of the restoring force of the tension spring 15 toggles the carriage 12 and the main bolt 13, the main bolt 13 pops out, the guide inclined plate 4c on the toggle plate 4 rotates by taking the axis of the hinge pin two 8 as a rotating center after abutting against the end surface of the toggle piece 9b on the latch bolt fork 9 until the toggle piece 2b of the latch bolt assembly 2 is separated from the toggle hook 4b of the toggle plate 4, and the latch bolt pops out under the action of the spring 2, the door lock in the door is automatically locked.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A door lock in a door comprises a side panel (1), an oblique bolt assembly (2), a lock box (3), a main bolt (13), a rotating block assembly and a shifting plate assembly, wherein the side panel (1) is connected with the lock box (3), the side panel (1) is provided with a main bolt hole (1a) and an oblique bolt hole, and the oblique bolt assembly (2) is arranged in the lock box (3); the rotary block assembly and the shifting plate assembly are both arranged in a lock box (3), one end of a main bolt (13) is matched with a main bolt hole (1a) on a side panel (1), the other end of the main bolt (13) is provided with a planker (12), and the planker (12) is arranged above the rotary block assembly and is characterized in that the planker (12) is provided with an elongated slot (12a), a kidney-shaped guide hole (12b) and a shifting stopping slot (12c), a notch (12c1) is formed in the shifting stopping slot (12c), a connecting column I (3a) is fixedly connected inside the lock box (3), and the connecting column I (3a) is slidably connected in the kidney-shaped guide hole (12 b);

the rotary block assembly comprises a rotary block (14), a latch bolt shifting fork (9), a carriage shifting fork (10) and a limiting shifting fork (11), wherein the limiting shifting fork (11), the carriage shifting fork (10) and the latch bolt shifting fork (9) are sequentially sleeved on the rotary block (14), a limiting blocking piece (11b) and a limiting blocking hook (11c) are arranged on the limiting shifting fork (11), and when the main lock tongue (13) is in an ejected state, the limiting blocking piece (11b) is just abutted against the first connecting column (3 a); a lug (10b) and a convex hook (10c) are arranged on the carriage shifting fork (10), the lug (10b) is abutted against the limit stop hook (11c), and the convex hook (10c) is arranged in a shifting stopping groove (12c) on the carriage (12); a shifting piece (9b) is arranged on the latch bolt shifting fork (9), and the shifting piece (9b) is matched with the latch bolt assembly (2);

the shifting plate assembly comprises a shifting plate (4), a clasp (5), a clasp spring (6), a shifting plate spring (7), a first hinge pin (3c), a second hinge pin (8) and a second connecting column (3b), wherein the first hinge pin (3c) and the second connecting column (3b) are fixedly arranged in the lock box (3), the second hinge pin (8) of the shifting plate (4) is hinged with the clasp (5), one end of the shifting plate (4) is matched with the latch bolt assembly, the clasp (5) is hinged in the lock box (3) through the first hinge pin (3c), one end of the clasp (5) is provided with a hook (5d), the hook (5d) is matched with a convex hook (10c) of the carriage shifting fork (10), the clasp spring (6) is sleeved on the second connecting column (3b), one end of the clasp spring (6) is abutted on the clasp (5), the other end of the clasp spring (6) is abutted on the lock box (3), and the shifting plate spring (7) is sleeved on the second hinge pin (8), one end of the poking plate spring (7) is propped against the poking plate (4), and the other end of the poking plate spring (7) is propped against the clasp (5); a tension spring (15) is arranged on a convex hook (10c) of the carriage shifting fork (10), a connecting column III (3e) is fixedly arranged in the lock box (3), one end of the tension spring (15) is connected to the convex hook (10c), and the other end of the tension spring (15) is connected to the connecting column III (3 e);

the hook (5) is L-shaped and comprises a first rocker arm (5a) and a second rocker arm (5b), a first hinge hole (5c) matched with the first hinge pin (3c) is formed in the crossed end of the first rocker arm (5a) and the second rocker arm (5b), a hook (5d) is arranged at the free end of the first rocker arm (5a), one end of a hook-fastening spring (6) abuts against the inner wall of the lock box (3), the other end of the hook-fastening spring (6) abuts against the second rocker arm (5b), a second hinge hole (5e) is formed in the free end of the second rocker arm (5b), a third hinge hole (4a) is formed in one end of the shifting plate (4), the second hinge hole (5e) and the third hinge hole (4a) are hinged through a second hinge pin (8), one end of the shifting plate spring (7) abuts against the second rocker arm (5b), the other end of the shifting plate spring (7) abuts against the shifting plate (4), and a shifting hook (4b) and a guide hook (4c) are arranged at the other end of the shifting plate (4), the poking piece (2b) is matched with the poking hook (4b), and the inclined guide plate (4c) is matched with the end part of the poking piece (9 b);

the lock is characterized in that a first shaft hole (11a) is formed in the limiting shifting fork (11), the limiting shifting fork (11) is installed on the rotating block (14) through the first shaft hole (11a), the limiting shifting fork (11) and the rotating block (14) rotate synchronously, a second shaft hole (10a) is formed in the carriage shifting fork (10), the carriage shifting fork (10) is installed on the rotating block (14) through the second shaft hole (10a), a third shaft hole (9a) is formed in the latch bolt shifting fork (9), the latch bolt shifting fork (9) is installed on the rotating block (14) through the third shaft hole (9a), a rotating hole (14a) is axially formed in the rotating block (14), the rotating block (14) is rotatably connected to the lock box (3), a first lug (10a1) is arranged on the inner wall of the second shaft hole (10a) of the carriage shifting fork (10), and a second lug (9a1) is arranged on the inner wall of the third shaft hole (9 a;

the first lug (10a1) on the second shaft hole (10a) and the second lug (9a1) on the third shaft hole (9a) have a position difference.

2. Door lock in door according to claim 1, characterized in that the side of the toggle hook (4b) facing the toggle blade (2b) is an inclined surface.

3. Door lock in door according to claim 1, characterized in that the end of the pick (9b) is inclined to fit the sloping guide plate (4 c).

4. The door lock in the door according to claim 1, wherein the latch bolt assembly comprises a spring (2a), a poking piece (2b), a latch bolt shaft and a latch bolt, a guide piece (3d) is arranged in the lock box (3), one end of the spring (2a) abuts against the guide piece (3d), the other end of the spring (2a) abuts against the latch bolt, one end of the latch bolt shaft is connected with the latch bolt, and the other end of the latch bolt shaft is connected with the poking piece (2 b).