Anti-theft door lock

Abstract

The utility model discloses an anti-theft door lock which comprises a lock cylinder, the back face of the lock cylinder is connected with a back plate, and the front face of the lock cylinder is connected with a panel. The top of the panel is provided with a protection mechanism. The protection mechanism is characterized in that the back of a protection cover is fixed to the top of the front of the panel; the two ends of the cleaning roller are movably clamped with the inner cavities at the two ends of the clamping hooks respectively, and the end part of the cleaning roller is rotationally connected with the inner cavities of the clamping hooks on the same vertical plane; a driving mechanism is arranged at one end of the clamping hook and used for driving one limiting assembly to slide in the vertical direction. Through the arrangement mode that the panel, the protection mechanism and the driving mechanism are matched, the driving mechanism is utilized, the limiting assembly on the protection mechanism can drive the clamping hook to move stably, the cleaning roller can clean and protect fingerprints and keys on the panel, contact traces on the panel can be eliminated conveniently, and the safety of the panel is improved. And the use safety of the door lock is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of door locks, in particular to an anti-theft door lock. Background Art

[0002] An anti-theft door is a door that can resist abnormal opening under certain conditions within a certain period of time, has certain safety protection performance and meets the corresponding anti-theft security level. The application number is disclosed as 202220129810.7. An explosion-proof anti-theft door lock comprises a lock body, a handle and a rubber ring. Both ends of the lock body are fixedly connected to a door lock cover, and both ends of the lock body are provided with a rotating shaft. The other end of the rotating shaft is fixedly connected to a rotating plate, and a slider is slidably connected to the rotating plate. The above is practical to prevent damage to the handle and prevent the handle and the connecting shell from moving. However, the existing door locks are mainly smart locks. The intelligence of anti-theft doors is mainly reflected in the intelligence of locks, including various types of electronic anti-theft locks that have begun to be widely used, such as fingerprint, password, IC card lock, etc.

[0003] When using existing smart door locks, users are required to press a password with their hands, or use fingerprints to unlock the door. When the finger touches the fingerprint panel or button panel on the door lock panel, the fingerprint is likely to remain on the panel, which is easy for someone to collect the fingerprint, or to calculate the password based on the fingerprint imprint on the button, resulting in insufficient security of the anti-theft door lock. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-theft door lock to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: an anti-theft door lock, comprising: a lock core, the back of the lock core is connected to a back plate, and the front of the lock core is connected to a panel;

[0006] A protective mechanism is provided on the top of the panel, and the protective mechanism comprises:

[0007] A protective cover, the back side of which is fixed to the top of the front side of the panel;

[0008] A hook and a cleaning roller, wherein two ends of the cleaning roller are movably engaged with the inner cavities at two ends of the hook respectively, and the end of the cleaning roller is rotatably connected with the inner cavity of the hook on the same vertical plane;

[0009] A plurality of limit assemblies are provided, wherein the limit assemblies are used to limit the position of the end of the hook, and a driving mechanism is provided at one end of the hook, and the driving mechanism is used to drive one of the limit assemblies to slide in a vertical direction.

[0010] Preferably, the back plate and the back side of the front plate are both rotatably connected with a handle, and the driving mechanism is arranged on one side of the front plate.

[0011] Preferably, the limiting component comprises:

[0012] A limit block, the limit block being fixed to the end of the top surface of the hook;

[0013] The limiting groove is opened at the end of the inner wall of the protective cover, and the limiting block is slidably connected with the inner cavity of the limiting groove.

[0014] Preferably, the cleaning roller rotates in the inner cavity of the hook, and the driving mechanism is arranged on the back side of one of the limit blocks.

[0015] Preferably, the driving mechanism comprises:

[0016] A slide groove and an arc groove, wherein the slide groove is opened on one side of the panel, and the arc groove is opened at the bottom of the slide groove;

[0017] A driving gear, the driving gear is rotatably inserted into the middle part of the inner wall of the slide slot, and a servo motor is arranged in the middle part of the driving gear through a rotating shaft;

[0018] A rack, the top of which is fixed to the top of one of the limit blocks, and the rack is meshed and connected with the outer wall of the driving gear.

[0019] Preferably, the outer wall of the cleaning roller is slidably connected to the front surface of the panel, and the rack is slidably connected to the inner cavity of the slide groove.

[0020] Technical effects and advantages of the utility model:

[0021] The utility model adopts a setting mode in which the panel, the protection mechanism and the driving mechanism are matched, and utilizes the driving mechanism so that the limit component on the protection mechanism can drive the hook to move stably, so that the cleaning roller can clean and protect the fingerprints and buttons on the panel, which is convenient for eliminating the contact marks on the panel and improving the safety of the door lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0023] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the side surface of the panel of the utility model.

[0024] Figure 3 It is a schematic diagram of a partial cross-sectional structure of the front side of the panel of the utility model.

[0025] In the figure: 1. lock core; 2. back plate; 3. panel; 4. protection mechanism; 41. protection cover; 42. hook; 43. cleaning roller; 44. limit assembly; 441. limit block; 442. limit groove; 5. driving mechanism; 51. slide groove; 52. arc groove; 53. driving gear; 54. rack; 6. handle. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model provides Figure 1-3 The anti-theft door lock shown comprises:

[0028] A lock core 1, a back plate 2 is connected to the back of the lock core 1, and a panel 3 is connected to the front of the lock core 1. The back plate 2 and the panel 3 are fixed to the front and back of the anti-theft door respectively. The lock core 1 is fixedly embedded in the middle of the anti-theft door for normal use of the door lock, and the panel 3 is sequentially provided with a fingerprint identifier, a password keyboard and a card swiping identifier from the top to the bottom, which are respectively used for the user's fingerprint unlocking, password unlocking and card swiping unlocking;

[0029] Furthermore, a protective mechanism 4 is provided on the top of the panel 3, and the protective mechanism 4 includes: a protective cover 41, a hook 42, a cleaning roller 43 and a plurality of limit assemblies 44. The back of the protective cover 41 is fixed to the top of the front of the panel 3, and the protective cover 41 can cover and protect the fingerprint identifier. The two ends of the hook 42 are hook groove structures respectively, and the two ends of the cleaning roller 43 are respectively movably engaged with the inner cavities at the two ends of the hook 42, so that the cleaning roller 43 can be stably engaged with the inner cavity of the hook 42, and the cleaning roller 43 rotates in the inner cavity of the hook 42, and the end of the cleaning roller 43 is rotatably connected with the inner cavity of the hook 42 on the same vertical plane, so that the cleaning roller 43 can rotate on the surface of the panel 3;

[0030] Specifically, the limiting assembly 44 is used to limit the position of the end of the hook 42. The limiting assembly 44 includes: a limiting block 441 and a limiting groove 442. The limiting block 441 is fixed to the end of the top surface of the hook 42. The limiting groove 442 is opened at the end of the inner wall of the protective cover 41. The limiting block 441 and the inner cavity of the limiting groove 442 are slidably connected. Through the clamping of the limiting block 441 and the inner cavity of the limiting groove 442, the hook 42 can be stably slid in the inner cavity of the protective cover 41, so that the sliding of the cleaning roller 43 is stable.

[0031] Further, a driving mechanism 5 is provided at one end of the hook 42, and the driving mechanism 5 is provided on one side of the panel 3. The driving mechanism 5 is used to drive one of the limit components 44 to slide in the vertical direction. The driving mechanism 5 is provided on the back of one of the limit blocks 441. The driving mechanism 5 includes: a slide groove 51, an arc groove 52, a driving gear 53 and a rack 54. The slide groove 51 is opened on one side of the panel 3. The slide groove 51 is a rectangular groove. The arc groove 52 is opened at the bottom of the slide groove 51. The inner wall of the arc groove 52 is The arc-shaped structure is convenient for dirt and the like to slide out from the bottom of the slide groove 51 through the inner cavity of the arc groove 52, which is convenient for reducing the accumulation of dirt and the stability of the panel 3 when the door lock is used. The driving gear 53 rotates and inserts in the middle of the inner wall of the slide groove 51. The middle of the driving gear 53 is provided with a servo motor through a rotating shaft. The middle of the slide groove 51 is provided with a driving groove. The driving gear 53 rotates in the inner cavity of the driving groove. The rotating shaft is fixedly inserted and connected with the middle of the driving gear 53. The two ends of the rotating shaft are respectively connected to the driving groove through bearings. The two sides of the inner wall are rotatably interlaced and connected, the output end of the servo motor is transmission-connected with one end of the rotating shaft, the servo motor is fixedly embedded in the inner cavity of the panel 3, the servo motor is electrically connected to the external power supply through an external switch, and the driving of the servo motor can drive the rotating shaft to drive the driving gear 53 to rotate stably, and the top of the rack 54 is fixed to the top of one of the limit blocks 441, the rack 54 is meshed and connected with the outer wall of the driving gear 53, the rack 54 is an L-shaped structure, one side of the rack 54 is a sawtooth structure, the outer wall of the cleaning roller 43 is fitted and slidably connected with the front of the panel 3, and the rack 54 is slidably connected with the inner cavity of the slide groove 51, through the rotation of the driving gear 53, the rack 54 can drive one of the limit blocks 441 to move stably, through the connection between the limit block 441 and the hook 42, the cleaning roller 43 can stably slide in the inner cavity of the protective cover 41, so that the cleaning roller 43 can erase the contact fingerprint traces on the panel 3, prevent fingerprints from being collected by intentional people, and reduce the collection of password keys by people;

[0032] Furthermore, the back plate 2 and the back side of the panel 3 are both rotatably connected with a handle 6, and the lock rod on the handle 6 is connected to the middle part of the lock core 1. Through the handle 6, the door lock can be stably rotated, so that the use of the anti-theft door is stable.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A theft-proof door lock, comprising: A lock core (1), wherein the back of the lock core (1) is connected to a back plate (2), and the front of the lock core (1) is connected to a panel (3); The invention is characterized in that: a protective mechanism (4) is arranged on the top of the panel (3), and the protective mechanism (4) comprises: A protective cover (41), the back side of the protective cover (41) being fixed to the top of the front side of the panel (3); A hook (42) and a cleaning roller (43), wherein two ends of the cleaning roller (43) are respectively movably engaged with the inner cavities at two ends of the hook (42), and the end of the cleaning roller (43) is rotatably connected with the inner cavity of the hook (42) on the same vertical plane; A plurality of limit assemblies (44), wherein the limit assemblies (44) are used to limit the position of the end of the hook (42), and a driving mechanism (5) is provided at one end of the hook (42), and the driving mechanism (5) is used to drive one of the limit assemblies (44) to slide in a vertical direction.

2. The anti-theft door lock according to claim 1, characterized in that: The back side of the back plate (2) and the front plate (3) are both rotatably connected to a handle (6), and the driving mechanism (5) is arranged on one side of the front plate (3).

3. The anti-theft door lock according to claim 2, characterized in that: The limiting component (44) comprises: A limit block (441), wherein the limit block (441) is fixed to an end portion of a top surface of the hook (42); A limiting groove (442), wherein the limiting groove (442) is opened at the end of the inner wall of the protective cover (41), and the limiting block (441) is slidably connected with the inner cavity of the limiting groove (442).

4. The anti-theft door lock according to claim 2, characterized in that: The cleaning roller (43) rotates in the inner cavity of the hook (42), and the driving mechanism (5) is arranged on the back side of one of the limit blocks (441).

5. The anti-theft door lock according to claim 4, characterized in that: The driving mechanism (5) comprises: A slide groove (51) and an arc groove (52), wherein the slide groove (51) is provided on one side of the panel (3), and the arc groove (52) is provided at the bottom of the slide groove (51); A driving gear (53), the driving gear (53) is rotatably inserted into the middle of the inner wall of the slide groove (51), and a servo motor is arranged in the middle of the driving gear (53) via a rotating shaft; A rack (54), the top of which is fixed to the top of one of the limit blocks (441), and the rack (54) is meshedly connected with the outer wall of the driving gear (53).

6. The anti-theft door lock according to claim 5, characterized in that: The outer wall of the cleaning roller (43) is slidably connected to the front surface of the panel (3), and the rack (54) is slidably connected to the inner cavity of the slide groove (51).

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