Intelligent door lock with anti-theft function

Abstract

The utility model relates to the technical field of intelligent door locks, in particular to an intelligent door lock with an anti-theft function, which comprises a lock body, a wiping component is arranged at the bottom of the inner side of the lock body, a front handle and a rear handle are rotatably connected to the front side and the rear side of the lock body respectively, and a maintenance component is arranged at the top of the inner side of the lock body. Through cooperation of the maintenance assembly, the maintenance port and the sealing plate, maintenance and replacement of a circuit board are facilitated, the whole door lock does not need to be disassembled, a large amount of time is saved, a door is opened by screwing a front handle, meanwhile, the front handle rotates to drive a driving gear to rotate, and the driving gear drives a driven gear to rotate; the driven gear can drive the adjusting gear to rotate through the connecting shaft, when the adjusting gear rotates, the rack can be driven to move in the vertical direction along the limiting groove, at the moment, the rack synchronously drives the wiping strip on one side to wipe the screen of the fingerprint identifier, the fingerprint identifier can be automatically cleaned after unlocking every time, and great convenience is achieved.

Description

Technical Field

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

[0002] As the name implies, a door lock is a device used to lock the door to prevent others from opening the door. There are many types of door locks, and the requirements for door locks are different in different occasions. Ordinary families generally use anti-theft door locks, which are highly secure and relatively cheap. Electronic door locks have emerged with the development of electronic technology. They are incomparable to mechanical locks in terms of ease of use, prevention of illegal opening, and intelligent management. Therefore, they are widely used in industries with high security requirements. Door locks must be safe and stable as security products. Therefore, we have launched a smart door lock with anti-theft function.

[0003] The existing patent (publication number: CN212773845U) discloses a smart door lock with anti-theft function, including a door body, a rear panel fixedly installed on the back of the door body, a battery slot opened on the upper end of the rear panel, a rear handle rotatably connected to the back of the rear panel, and a control element fixedly installed inside the rear panel. When the bottom of the external front panel of the smart door lock is pried, the prying object contacts the anti-pry plate, so that the anti-pry plate moves inward under the action of the prying force, and the fixed column fixedly installed on the front of the anti-pry plate contacts and presses the pressure sensor, so that the alarm receives the information and initiates the alarm whistle, which greatly improves the anti-pry safety factor of the smart door lock. The bolts pass through the through holes on the rear panel, the lock body and the anti-pry plate and are threadedly connected to the internal threaded holes inside the front panel, so that the installation connection can be made directly from the inside, so that the front panel is a closed full metal shell, which greatly improves the anti-theft function. In the process of realizing the utility model, the inventor found that the prior art had the following problems: 1. In the existing smart door locks, the circuit boards are fixed inside the door locks by screws. During use, if the circuit board fails, the entire door lock has to be disassembled for repair, which is very time-consuming and labor-intensive; 2. The existing smart door locks are equipped with a fingerprint unlocking function, but the fingerprint identifier will leave fingerprints, which need to be cleaned manually, and it is easy for interested parties to collect the residents' fingerprints to engage in illegal activities. Summary of the invention

[0004] The purpose of the utility model is to provide an intelligent door lock with an anti-theft function to solve the problems raised in the above background technology. To achieve the above purpose, the utility model provides the following technical solutions: an intelligent door lock with an anti-theft function, comprising a lock body, a wiping assembly is provided at the inner bottom of the lock body, a front handle and a rear handle are rotatably connected to the front and rear sides of the lock body, and an inspection assembly is provided at the inner top of the lock body.

[0005] Further preferably, the front side of the lock body is provided with an inspection port, a display screen, a button area and a fingerprint identifier from top to bottom, a lock core is fixedly connected to the middle part of the inner side of the lock body, two lock tongues are movably connected to one side of the lock core, a sealing plate is slidably connected to the middle part of the inspection port, and two locking screws are threadedly connected to both sides of the top of the sealing plate.

[0006] Further preferably, the two lock tongues penetrate from the inside of the lock body to the outside, and the two lock tongues are slidably connected to the lock body, an opening is provided on the top of the lock body, and a sealing plate is slidably connected in the opening.

[0007] Further preferably, the wiping assembly includes a connecting shaft rotatably connected to the inside of the lock body, a driven gear is fixedly connected to the middle part of the connecting shaft, an adjusting gear is fixedly connected to the front end of the connecting shaft, a driving gear is meshed on one side of the driven gear, a rack is meshed on one side of the adjusting gear, a wiping strip is fixedly connected to one side of the rack, and the top of the rack is slidably connected to the inside of the limiting groove.

[0008] Further preferably, the middle part of the front side of the driving gear is fixedly connected to one end of the front handle, and the one end of the front handle penetrates from the outside to the inside of the lock body, and the side of the wiping strip with bristles is in contact with the screen of the fingerprint identifier; this structure can, after the fingerprint identification is completed, when the householder turns the front handle to open the door, the wiping strip is driven downward by the rack to wipe the surface of the fingerprint identifier, thereby eliminating the fingerprints on the fingerprint identifier screen. The householder does not need to clean it himself, and it also avoids the situation where someone with ulterior motives collects fingerprints.

[0009] Further preferably, the maintenance assembly includes a lower mounting plate fixedly connected between the inner walls of the lock body, a wiring groove is opened in the middle part of the bottom surface of the lower mounting plate, an upper mounting plate is attached to the top surface of the lower mounting plate, the upper mounting plate and the lower mounting plate are connected by bolts, four springs are fixedly connected to the bottom surface of the upper mounting plate, and the bottom ends of the four springs are fixedly connected to rubber strips.

[0010] Further preferably, the bottom surface of the upper mounting plate and the top surface of the lower mounting plate are both provided with grooves, and an elastic structure is formed between the upper mounting plate and the rubber strip via a spring.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, the sealing plate can be pulled out upward from the inspection opening by twisting the locking screw upward, and the upper mounting plate and the lower mounting plate can be seen by opening the inspection opening. At this time, the bolts are twisted out from the lower mounting plate, and the upper mounting plate can be opened to take out the circuit board, which facilitates the maintenance and replacement of the circuit board without disassembling the entire door lock, thus saving a lot of time.

[0013] In the utility model, the door is opened by turning the front handle. When the front handle is rotated, the driving gear is driven to rotate, and the driving gear is driven to rotate. The driven gear is driven to rotate the adjusting gear through the connecting shaft. When the adjusting gear rotates, the rack is driven to move vertically along the limiting groove. At this time, the rack synchronously drives the wiping strip on one side to wipe the fingerprint recognition device screen. The fingerprint recognition device can be automatically cleaned after each unlocking, which is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 A is an enlarged structural diagram;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the maintenance component of the utility model;

[0018] Figure 5 For this utility model Figure 4 The enlarged structural diagram at B in FIG.

[0019] Figure 6 For this utility model Figure 4 The enlarged structural diagram at C in FIG.

[0020] Figure 7 This is a schematic diagram of the cross-sectional structure of the bolt of the utility model;

[0021] Figure 8 This is a schematic diagram of the active gear structure of the utility model.

[0022] In the figure: 1. lock body; 101. inspection port; 102. display screen; 103. keypad area; 104. fingerprint reader; 105. lock core; 106. lock tongue; 107. sealing plate; 108. locking screw; 2. wiping assembly; 201. connecting shaft; 202. driven gear; 203. adjusting gear; 204. driving gear; 205. rack; 206. wiping strip; 207. limiting groove; 3. front handle; 4. rear handle; 5. inspection assembly; 501. lower mounting plate; 502. wiring slot; 503. upper mounting plate; 504. bolt; 505. spring; 506. rubber strip. DETAILED DESCRIPTION

[0023] 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 technical personnel in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 8 The utility model provides a technical solution: an intelligent door lock with an anti-theft function, comprising a lock body 1, a wiping assembly 2 is provided at the inner bottom of the lock body 1, a front handle 3 and a rear handle 4 are rotatably connected to the front and rear sides of the lock body 1, and an inspection assembly 5 is provided at the inner top of the lock body 1.

[0025] In this embodiment, Figure 1 , Figure 2 and Figure 4 As shown, the front side of the lock body 1 is provided with an inspection port 101, a display screen 102, a button area 103 and a fingerprint identifier 104 from top to bottom, a lock core 105 is fixedly connected to the middle of the inner side of the lock body 1, two lock tongues 106 are movably connected to one side of the lock core 105, a sealing plate 107 is slidably connected to the middle of the inspection port 101, and two locking screws 108 are threadedly connected to the top two sides of the sealing plate 107.

[0026] In this embodiment, Figure 1 and Figure 2 As shown, the two lock tongues 106 pass through the inside of the lock body 1 to the outside, and the two lock tongues 106 are slidably connected to the lock body 1. An opening is provided at the top of the lock body 1, and a sealing plate 107 is slidably connected in the opening; the lock tongue 106 can be retracted into the lock body 1 to ensure that the door lock can work normally, and the sealing plate 107 can seal the inspection port 101, and behind the inspection port 101 is the circuit board. The circuit board can be replaced by opening the sealing plate 107 without disassembling the entire door lock, making the maintenance of the door lock more convenient.

[0027] In this embodiment, Figure 2 , Figure 3 , Figure 6 and Figure 8 As shown, the wiping assembly 2 includes a connecting shaft 201 rotatably connected to the inside of the lock body 1, a driven gear 202 is fixedly connected to the middle of the connecting shaft 201, an adjusting gear 203 is fixedly connected to the front end of the connecting shaft 201, a driving gear 204 is meshed on one side of the driven gear 202, a rack 205 is meshed on one side of the adjusting gear 203, a wiping strip 206 is fixedly connected to one side of the rack 205, and the top of the rack 205 is slidably connected to the inside of the limiting groove 207.

[0028] In this embodiment, Figure 6 and Figure 8 As shown, the front middle part of the driving gear 204 is fixedly connected to one end of the front handle 3, and one end of the front handle 3 extends from the outside to the inside of the lock body 1, and the side of the wiping strip 206 with bristles is in contact with the screen of the fingerprint identifier 104; this structure can, after the fingerprint identification is completed, when the householder turns the front handle 3 to open the door, the rack 205 drives the wiping strip 206 to move downward to wipe the surface of the fingerprint identifier 104, thereby eliminating the fingerprints on the screen of the fingerprint identifier 104, without the need for the householder to clean it himself, and also avoids the situation where someone with ulterior motives collects the fingerprint.

[0029] In this embodiment, Figure 5 and Figure 7 As shown, the maintenance component 5 includes a lower mounting plate 501 fixedly connected between the inner walls of the lock body 1, a wiring groove 502 is provided in the middle of the bottom surface of the lower mounting plate 501, an upper mounting plate 503 is attached to the top surface of the lower mounting plate 501, the upper mounting plate 503 and the lower mounting plate 501 are connected by bolts 504, four springs 505 are fixedly connected to the bottom surface of the upper mounting plate 503, and the bottom ends of the four springs 505 are fixedly connected to rubber strips 506.

[0030] In this embodiment, Figure 5 As shown, the bottom surface of the upper mounting plate 503 and the top surface of the lower mounting plate 501 are both provided with grooves, and an elastic structure is formed between the upper mounting plate 503 and the rubber strip 506 through a spring 505; the groove can leave a gap between the two mounting plates for installing the circuit board, and the rubber strip 506 can press down and fix the circuit board, and the elasticity of the spring 505 can prevent the rubber strip 506 from exerting too much downward pressure on the circuit board and causing it to be crushed.

[0031] The use method and advantages of the utility model: When the intelligent door lock with anti-theft function is used, the working process is as follows:

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, first press your finger on the screen of the fingerprint identifier 104 for fingerprint identification. After the identification is completed, the door is unlocked. At this time, the front handle 3 can be turned to open the door. At the same time, when the front handle 3 is rotated, the active gear 204 is driven to rotate, and the active gear 204 drives the driven gear 202 to rotate. The driven gear 202 drives the adjusting gear 203 to rotate through the connecting shaft 201. When the adjusting gear 203 rotates, it drives the rack 205 to move vertically along the limit groove 207. At this time, the rack 205 synchronously drives the wiping strip 206 on one side to touch the fingerprint identifier 10 4. The fingerprint reader 104 can be automatically cleaned after each unlocking, which is very convenient. When the circuit board in the door lock is damaged and needs to be repaired, the locking screw 108 is turned upward, and then the sealing plate 107 can be pulled out from the inspection port 101. The upper mounting plate 503 and the lower mounting plate 501 can be seen by opening the inspection port 101. At this time, the bolt 504 is screwed out from the lower mounting plate 501, and the upper mounting plate 503 can be opened to take out the circuit board, which is convenient for the maintenance and replacement of the circuit board without disassembling the entire door lock, saving a lot of time.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A smart door lock with anti-theft function, comprising a lock body (1), characterized in that: A wiping assembly (2) is provided at the inner bottom of the lock body (1); a front handle (3) and a rear handle (4) are rotatably connected to the front and rear sides of the lock body (1); and an inspection assembly (5) is provided at the inner top of the lock body (1); The wiping assembly (2) comprises a connecting shaft (201) rotatably connected to the inside of the lock body (1); a driven gear (202) is fixedly connected to the middle of the connecting shaft (201); an adjusting gear (203) is fixedly connected to the front end of the connecting shaft (201); a driving gear (204) is meshed on one side of the driven gear (202); a rack (205) is meshed on one side of the adjusting gear (203); a wiping strip (206) is fixedly connected to one side of the rack (205); and the top of the rack (205) is slidably connected to the inside of a limiting groove (207); The inspection component (5) comprises a lower mounting plate (501) fixedly connected to the inner wall of the lock body (1); a wiring groove (502) is provided in the middle of the bottom surface of the lower mounting plate (501); an upper mounting plate (503) is attached to the top surface of the lower mounting plate (501); the upper mounting plate (503) and the lower mounting plate (501) are connected by bolts (504); four springs (505) are fixedly connected to the bottom surface of the upper mounting plate (503); and the bottom ends of the four springs (505) are fixedly connected to rubber strips (506).

2. The intelligent door lock with anti-theft function according to claim 1, characterized in that: The front side of the lock body (1) is respectively provided with an inspection port (101), a display screen (102), a key area (103) and a fingerprint identifier (104) from top to bottom; a lock core (105) is fixedly connected to the middle of the inner side of the lock body (1); two lock tongues (106) are movably connected to one side of the lock core (105); a sealing plate (107) is slidably connected to the middle of the inspection port (101); two locking screws (108) are threadedly connected to the top two sides of the sealing plate (107).

3. The intelligent door lock with anti-theft function according to claim 2 is characterized in that: The two locking tongues (106) penetrate from the inside of the lock body (1) to the outside, and the two locking tongues (106) are slidably connected to the lock body (1). An opening is provided at the top of the lock body (1), and a sealing plate (107) is slidably connected in the opening.

4. The intelligent door lock with anti-theft function according to claim 1, characterized in that: The middle part of the front side of the driving gear (204) is fixedly connected to one end of the front handle (3), and one end of the front handle (3) penetrates from the outside to the inside of the lock body (1), and the side of the wiping strip (206) with bristles is in contact with the screen of the fingerprint identifier (104).

5. The intelligent door lock with anti-theft function according to claim 1, characterized in that: The bottom surface of the upper mounting plate (503) and the top surface of the lower mounting plate (501) are both provided with grooves, and an elastic structure is formed between the upper mounting plate (503) and the rubber strip (506) via a spring (505).

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