CN215369241U

CN215369241U - Anti-theft door lock capable of preventing key from being forgotten to be pulled out

Info

Publication number: CN215369241U
Application number: CN202121056145.5U
Authority: CN
Inventors: 廖成强; 曹锴滨; 范正文; 周兆龙
Original assignee: Hubei University of Technology
Current assignee: Hubei University of Technology
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-12-31
Anticipated expiration: 2031-05-18

Abstract

The utility model discloses a security door lock capable of preventing a key from being forgotten to be pulled out, relates to the technical field of security door locks, and aims to solve the problems that a user forgets to take the key when going out and forgets to pull out the key after opening the door. The utility model can lock the bolt, and can prevent the door from being closed normally through the safety bolt, thereby effectively reminding the user that the key must be pulled out to prevent the key from being forgotten.

Description

Anti-theft door lock capable of preventing key from being forgotten to be pulled out

Technical Field

The utility model relates to the technical field of anti-theft door locks, in particular to an anti-theft door lock capable of preventing a key from being forgotten to be pulled.

Background

The intelligent security door lock that possess fingerprint unblock and password unblock is rising slowly now, but to the vast rural area of area and some county and city behind the development, the popularization of intelligent lock still is comparatively few, and in the above-mentioned area, the old and middle-aged people take the ratio the biggest in the number, and they accept slowly and feel safe easily cracked inadequately to novel intelligent lock, but to traditional mechanical type tool to lock, still have many humanized problems inadequately, if: the anti-theft door lock is characterized in that the anti-theft door lock is arranged on the door body, the key is arranged on the anti-theft door lock, the anti-theft door lock is arranged on the door body, and the anti-theft door lock is arranged on the door body.

SUMMERY OF THE UTILITY MODEL

The utility model provides a security door lock capable of preventing a key from being forgotten to be pulled out, which solves the problems that the key is forgotten to be taken when a door is out and the key is forgotten to be pulled out after the door is opened.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a security door lock capable of preventing a key from being forgotten to be pulled comprises a shell, wherein two first fixed blocks are fixedly connected to the upper portion inside the shell, a linkage rod is movably sleeved on the two ascending first fixed blocks, a lock tongue is fixedly connected to the left end of the linkage rod, a first spring is sleeved on the left end of the linkage rod, a poking block is fixedly sleeved on the right end of the linkage rod, a clamping plate is fixedly connected to the right end of the lock tongue, two second fixed blocks are fixedly connected to the lower portion inside the shell, a moving rod is movably sleeved on the two second fixed blocks, a safety lock tongue is fixedly connected to the left end of the moving rod, two poking baffle plates are fixedly connected to the right side of the upper end of the moving rod, a handle linkage sleeve is rotatably connected to the right side inside the shell, a first poking rod is fixedly connected to the upper end of the handle linkage sleeve, and a second poking rod is fixedly connected to the bottom end of the handle linkage sleeve, the left end of the second poke rod is fixedly connected with a clamping hook, and the right end inside the shell is fixedly connected with a positioning mechanism.

Preferably, the right-hand member fixedly connected with first limiting plate of spring bolt, the left end of trace and the right-hand member fixed connection of first limiting plate, the left end of cardboard and the right-hand member below fixed connection of first limiting plate.

Preferably, through holes are respectively formed in the two first fixed blocks, the linkage rod penetrates through the two through holes respectively, and the movable sleeve is sleeved inside the first spring and fixedly connected to the right end of the limiting plate.

Preferably, the right end fixedly connected with second limiting plate of insurance spring bolt, two the activity hole has been seted up respectively on the second fixed block, the carriage release lever runs through two activity holes respectively and in the right-hand member fixed connection of second limiting plate.

Preferably, the positioning mechanism comprises a spring bin fixedly connected with the inside of the shell, a second spring is fixedly connected with the inside of the spring bin, and a positioning rod is fixedly connected with the other end of the second spring.

Preferably, a positioning groove is formed in the right end of the handle linkage sleeve corresponding to the positioning rod, the handle is sleeved on the outer front face of the shell corresponding to the handle linkage sleeve, and a key hole is formed in the outer front face lower portion of the shell.

Compared with the prior art, the utility model has the beneficial effects that: according to the equipment, the fixed block, the linkage rod, the lock tongue, the spring, the limiting block, the clamping plate, the poking block, the moving rod, the safety lock tongue, the handle linkage sleeve, the poking rod, the clamping hook, the poking baffle, the spring bin, the rod, the handle and other mechanisms are arranged, the door lock is unlocked by inserting the key into the key hole, the lock tongue is retracted inwards by rotating the handle through the poking rod, the lock tongue is locked by meshing the clamping hook with the clamping plate, and the safety lock tongue extends outwards through the poking rod.

Drawings

Fig. 1 is a schematic front view of a security door lock for preventing a key from being forgotten to be removed according to the present invention;

fig. 2 is a schematic perspective view of a security door lock for preventing a key from being forgotten to be removed according to the present invention;

fig. 3 is a schematic structural diagram of a security door lock for preventing a key from being forgotten to be removed after a lock tongue of the security door lock is locked;

fig. 4 is a partially enlarged schematic structural diagram of a security door lock for preventing forgetting to pull out a key according to the present invention.

In the figure: the safety lock comprises a shell 1, a first fixing block 2, a linkage rod 3, a lock tongue 4, a first spring 5, a first limiting block 6, a clamping plate 7, a poking block 8, a second fixing block 9, a moving rod 10, a second limiting plate 11, a safety lock tongue 12, a handle linkage sleeve 13, a first poking rod 14, a second poking rod 15, a clamping hook 16, a poking baffle 17, a spring bin 18, a second spring 19, a positioning rod 20, a handle 21 and a keyhole 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, the present solution provides an embodiment: a security door lock for preventing a key from being forgotten to be pulled comprises a shell 1, wherein two first fixed blocks 2 are fixedly connected to the upper part in the shell 1, a linkage rod 3 is movably sleeved on the two ascending first fixed blocks 2, a lock tongue 4 is fixedly connected to the left end of the linkage rod 3, a first spring 5 is sleeved on the left end of the linkage rod 3, a poking block 8 is fixedly sleeved on the right end of the linkage rod 3, a clamping plate 7 is fixedly connected to the right end of the lock tongue 4, two second fixed blocks 9 are fixedly connected to the lower part in the shell 1, a moving rod 10 is movably sleeved on the two second fixed blocks 9, a safety lock tongue 12 is fixedly connected to the left end of the moving rod 10, two poking baffle plates 17 are fixedly connected to the right end of the upper end of the moving rod 10, a handle linkage sleeve 13 is rotatably connected to the right side in the shell 1, a first poking rod 14 is fixedly connected to the upper end of the handle linkage sleeve 13, and a second poking rod 15 is fixedly connected to the bottom end of the handle linkage sleeve 13, the left end of the second poke rod 15 is fixedly connected with a hook 16, and the right end inside the shell 1 is fixedly connected with a positioning mechanism.

In this embodiment, the first limiting plate 6 of right-hand member fixedly connected with of spring bolt 4, the left end of trace 3 and the right-hand member fixed connection of first limiting plate 6, the left end of cardboard 7 and the right-hand member below fixed connection of first limiting plate 6.

In this embodiment, two first fixed blocks 2 are respectively provided with a through hole, and the linkage rod 3 respectively runs through two through holes, and the movable sleeve is arranged in the first spring 5 and is fixedly connected with the right end of the limiting plate 6.

In this embodiment, the right end fixedly connected with second limiting plate 11 of insurance spring bolt 12 has seted up the movable hole on two second fixed blocks 9 respectively, and carriage release lever 10 runs through two movable holes respectively and in the right-hand member fixed connection of second limiting plate 11.

In this embodiment, the positioning mechanism includes a spring chamber 18 fixedly connected with the inside of the housing 1, a second spring 19 fixedly connected with the inside of the spring chamber 18, and a positioning rod 20 fixedly connected with the other end of the second spring 19.

In this embodiment, a positioning groove is formed at the right end of the handle linkage sleeve 13 corresponding to the positioning rod 20, a handle 21 is arranged on the outer front surface of the casing 1 corresponding to the handle linkage sleeve 13, and a key hole 22 is formed below the outer front surface of the casing 1.

The working principle is that firstly, a key is inserted into a key hole 22 to unlock the door conventionally, when a handle 21 is rotated, a handle linkage sleeve 13 is driven to rotate, a linkage rod 3 is moved rightwards through a first poking rod 14 through the rotation of the handle linkage sleeve 13, the linkage rod 3 moves rightwards to enable a bolt 4 to contract inwards a door lock, the door is normally opened through the inward contraction of the bolt 4, a clamping plate 7 moves rightwards when the bolt 4 contracts inwards, a time delay device is arranged in the handle linkage sleeve 13, when the handle linkage sleeve 13 rotates for a set time through the time delay setting of the time delay device, a second poking rod 15 is driven to move, the clamping plate 7 is locked through a clamping hook 16 to enable the bolt 4 not to rebound, a moving rod 10 moves leftwards through the movement of the second poking rod 15, a safety bolt 12 extends outwards to enable the handle linkage sleeve 13 to rotate for a certain angle while a positioning rod 20 is attached to enable the handle linkage sleeve 13 to be locked, the outside extension through insurance spring bolt 12 makes the lock unable normally close, make locating lever 20 break away from the constant head tank through rotating the key left, rethread counter-rotating handle 21 makes insurance spring bolt 12 return, spring bolt 4 also kick-backs simultaneously, make the lock normally close through the resilience of spring bolt 4, make the door open the back through rotatory interior handle 21 when the user goes out not to take the key, make the outside extension of insurance spring bolt 12 unable the door of closing through the unable resilience of handle interlock cover 13 with the spring bolt locking simultaneously, effectual warning user carries the key, the effectual possibility of avoiding the user to forget the key.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The anti-theft door lock capable of preventing a key from being forgotten to be pulled comprises a shell (1) and is characterized in that two first fixed blocks (2) are fixedly connected to the upper portion inside the shell (1), a linkage rod (3) is movably sleeved on the two ascending first fixed blocks (2), a lock tongue (4) is fixedly connected to the left end of the linkage rod (3), a first spring (5) is sleeved on the left side of the linkage rod (3), a poking block (8) is fixedly sleeved on the right side of the linkage rod (3), a clamping plate (7) is fixedly connected to the right side of the lock tongue (4), two second fixed blocks (9) are fixedly connected to the lower portion inside the shell (1), a moving rod (10) is movably sleeved on the two second fixed blocks (9), a safety lock tongue (12) is fixedly connected to the left end of the moving rod (10), and two poking baffle plates (17) are fixedly connected to the right end of the moving rod (10), the handle linkage structure is characterized in that a handle linkage sleeve (13) is rotatably connected to the right side of the inside of the shell (1), a first poking rod (14) is fixedly connected to the upper end of the handle linkage sleeve (13), a second poking rod (15) is fixedly connected to the bottom end of the handle linkage sleeve (13), a clamping hook (16) is fixedly connected to the left end of the second poking rod (15), and a positioning mechanism is fixedly connected to the right end of the inside of the shell (1).

2. The anti-theft door lock capable of preventing a key from being forgotten to be pulled out according to claim 1, wherein a first limiting plate (6) is fixedly connected to the right end of the lock tongue (4), the left end of the linkage rod (3) is fixedly connected to the right end of the first limiting plate (6), and the left end of the clamping plate (7) is fixedly connected to the lower portion of the right end of the first limiting plate (6).

3. The anti-theft door lock capable of preventing a key from being forgotten to be pulled out according to claim 1, wherein through holes are respectively formed in the two first fixing blocks (2), the linkage rod (3) respectively penetrates through the two through holes, and the movable sleeve is movably sleeved inside the first spring (5) and is fixedly connected to the right end of the limiting plate (6).

4. The anti-theft door lock capable of preventing a key from being forgotten to be pulled out according to claim 1, wherein a second limiting plate (11) is fixedly connected to the right end of the safety lock tongue (12), two second fixed blocks (9) are respectively provided with a movable hole, and the movable rod (10) respectively penetrates through the two movable holes and is fixedly connected to the right end of the second limiting plate (11).

5. The anti-theft door lock capable of preventing a key from being forgotten and pulled out according to claim 1, characterized in that the positioning mechanism comprises a spring chamber (18) fixedly connected with the inside of the shell (1), a second spring (19) is fixedly connected with the inside of the spring chamber (18), and a positioning rod (20) is fixedly connected with the other end of the second spring (19).

6. The anti-theft door lock capable of preventing a key from being forgotten to be pulled out is characterized in that a positioning groove is formed in the right end of the handle linkage sleeve (13) corresponding to the positioning rod (20), a handle (21) is arranged on the outer front face of the shell (1) corresponding to the handle linkage sleeve (13), and a key hole (22) is formed in the lower portion of the outer front face of the shell (1).