Door lock body structure

By introducing a mechanical key, fingerprint module, and electromagnet automatic unlocking component into the door lock body, the problems of inconvenient lock body installation and unlocking failure due to power failure are solved, achieving rapid installation and high reliability of the lock body.

CN223964290UActive Publication Date: 2026-03-03CAIRNS (JIANGMEN) INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing door lock bodies are difficult to install quickly and are easily damaged when the key is lost or the size is incompatible. Furthermore, traditional locks cannot be unlocked when there is a power outage or the smart module malfunctions, which limits their applicability and reliability.

Method used

A lock body structure was designed that includes a lock box, lock cylinder, display screen, unlocking component and automatic component. Unlocking is achieved through mechanical key, fingerprint module and password input, combined with electromagnet automatic unlocking, and the position of the lock box can be adjusted by moving block and screws to adapt to different door sizes.

Benefits of technology

It enables rapid installation and adaptation of the lock box, ensuring mechanical unlocking even in the event of power failure or smart module malfunction, thus improving installation efficiency and reliability and expanding the applicability of the lock body.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a door lock body structure, which relates to the technical field of door lock bodies and comprises a lock box, a lock cylinder, a display screen and an unlocking component, the lock cylinder is mounted in the lock box, the display screen is arranged on one side of the top of the lock box, the unlocking component comprises a cam, the cam is arranged in the middle of the lock cylinder, and the lock cylinder is mounted in the lock box. An arc-shaped gear is installed on one side of the cam, the arc-shaped gear is meshed with a rack, a spring bolt is installed at one end of the rack, a spring is installed at the other end of the rack, the other end of the spring is installed on the inner wall of the lock box, and an automatic assembly used for automatically unlocking the spring bolt is arranged on the fixing block. According to the utility model, the movable block slides, is adjusted to a proper position, and is fixed on the lock box through the screw, so that the position of the lock box can be quickly adjusted to adapt to the sizes and installation requirements of different doors, the problem that a traditional lock needs to be punched again or a door body needs to be modified is avoided, and the installation efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of gate lock body technology, specifically a gate lock body structure. Background Technology

[0002] The door lock body is the core mechanical component installed on a door. It is a crucial part of the door lock structure, used to realize the door's opening, closing, and locking functions. It is the "central hub" of the entire lock system, working in conjunction with components such as the lock cylinder, bolt, and key to control the door's unlocking and locking mechanisms. Door lock bodies are widely used in various locations such as residences, office buildings, and shops to ensure the security and reliability of doors.

[0003] For example, patent CN212867163U describes a door lock body with the following solution: When locking, the lock cylinder is driven, causing the drive plate to rotate. A rolling device on the drive plate presses against the bolt, keeping the pressing surface and the rolling device in contact. The rolling device separates the drive plate from the bolt and rolls against the pressing surface, thus preventing wear on the drive plate and ensuring normal use of the door lock. The rolling mechanism has a low coefficient of friction, making it less prone to wear and allowing for long-term use.

[0004] The aforementioned technologies only support unlocking by turning the lock cylinder with a key. When users forget to bring their keys or lose their keys when they go out, they will not be able to unlock the lock by other means. This will not only increase time costs, but may also cause damage to the lock body or door, thereby increasing maintenance costs. At the same time, since the fixed position and size of the lock box are preset, if the size, hole position or material of the door does not match the lock body design, the door body needs to be modified to install the lock box, which limits the applicability of the lock body. Utility Model Content

[0005] The purpose of this utility model is to provide a gate lock body structure to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A door lock body structure, comprising:

[0008] Lock box;

[0009] A lock cylinder, which is installed inside the lock box;

[0010] A display screen is located on one side of the top of the lock box;

[0011] It also includes an unlocking component, which includes a cam located in the middle of the lock cylinder. An arc-shaped gear is mounted on one side of the cam, and the arc-shaped gear meshes with a rack. A latch is mounted on one end of the rack, and a spring is mounted on the other end of the rack. The other end of the spring is mounted on the inner wall of the lock box. A first sliding groove is formed on the inner wall of the lock box. A slider is mounted on one side of the rack and is slidably connected to the inside of the first sliding groove. A fixing block is also mounted inside the first sliding groove, and an automatic component for automatically unlocking the latch is provided on the fixing block.

[0012] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0013] In one alternative: the automatic component includes an iron block mounted on the side of the slider near the fixed block, an electromagnet is mounted on one side of the fixed block, and a magnetic baffle is mounted on the top of the fixed block.

[0014] In one alternative: the lock box has fixing components on both sides for mounting the lock box.

[0015] In one alternative: the fixing component includes a second slide groove, the interior of which is slidably connected to a movable block, the interior of which is provided with a screw.

[0016] In one alternative: a battery compartment is installed inside the lock box.

[0017] In one alternative: a control module is installed inside the lock box.

[0018] In one alternative: a lock cover is installed on the top of the lock box.

[0019] In one alternative: the top of the lock box is also provided with a handle, and the handle is provided with a fingerprint module.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] This invention utilizes a sliding block. After adjusting the sliding block to a suitable position, it is fixed to the lock box with screws, allowing for quick adjustment of the lock box's position to adapt to different door sizes and installation requirements. This avoids the need for re-drilling or modifying the door structure required by traditional locks, thus improving installation efficiency. Mechanical unlocking allows for easy unlocking in case of power failure or smart module malfunction, by inserting a mechanical key into the lock cylinder. Furthermore, the fingerprint and password input modules receive fingerprint or password input signals, triggering the control module to activate the electromagnet for automatic unlocking. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is a top view structural diagram of the present invention.

[0024] Figure 3 This is a partially sectional exploded view of the present invention.

[0025] Figure 4 This is a side view of a partial cross-sectional structure of the present invention.

[0026] The components are as follows: 100, lock box; 200, lock cylinder; 300, display screen; 401, cam; 402, arc gear; 403, rack; 404, lock tongue; 405, spring; 406, first slide groove; 407, slider; 408, fixing block; 501, iron block; 502, electromagnet; 503, magnetic baffle; 601, second slide groove; 602, moving block; 701, battery box; 702, control module; 703, handle. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] In one embodiment, such as Figures 1-4 As shown, a door lock body structure includes: a lock box 100, a lock cylinder 200, a display screen 300, and an unlocking assembly. The lock cylinder 200 is installed inside the lock box 100, and the display screen 300 is disposed on one side of the top of the lock box 100. The unlocking assembly includes a cam 401, which is disposed in the middle of the lock cylinder 200. An arc gear 402 is installed on one side of the cam 401, and the arc gear 402 meshes with a rack 403. A latch 404 is installed at one end of the rack 403, and a spring 405 is installed at the other end of the rack 403. The other end of the spring 405 is installed on the inner wall of the lock box 100. A first groove 406 is provided on the inner wall of the lock cylinder 200. A slider 407 is installed on one side of the rack 403. The slider 407 is slidably connected to the inside of the first groove 406. A fixing block 408 is also installed inside the first groove 406. The fixing block 408 is provided with an automatic component for automatically unlocking the bolt 404. By inserting the mechanical key into the lock cylinder 200, the cam 401 is rotated, which drives the arc gear 402 to rotate, thereby driving the rack 403 to move, and simultaneously driving the spring 405 and the bolt 404 to move. When the bolt 404 is engaged in the door frame, under the action of the spring 405, it abuts against the rack 403, thus locking the bolt 404 inside the door frame.

[0029] In one embodiment, such as Figure 2 , Figure 3 and Figure 4 As shown, the automatic component includes an iron block 501, which is installed on the side of the slider 407 near the fixed block 408. An electromagnet 502 is installed on one side of the fixed block 408, and a magnetic baffle plate 503 is installed on the top of the fixed block 408. By activating the electromagnet 502, the iron block 501 is attracted by magnetic force, thereby driving the fixed block 408 to move inside the first slide groove 406, thereby driving the locking tongue 404 to move and unlocking. The magnetic baffle plate 503 prevents external magnetic forces from affecting the iron block 501.

[0030] In one embodiment, such as Figure 2 As shown, the fixing component includes a second slide groove 601, and a movable block 602 is slidably connected inside the second slide groove 601. A screw 603 is provided inside the movable block 602. By sliding the movable block 602, the movable block 602 is placed in a suitable installation position, and then the screw 603 is installed inside the movable block 602 to fix the position of the lock box 100.

[0031] In one embodiment, such as Figure 1 As shown, a battery box 701 is installed inside the lock box 100; the battery box 701 can provide power to the control module 702 and the display screen 300, etc.

[0032] In one embodiment, such as Figure 1 As shown, the lock box 100 is equipped with a control module 702; the control module 702 controls the start and stop of the electromagnet 502.

[0033] In one embodiment, such as Figure 3 As shown, a lock cover is installed on the top of the lock box 100; this facilitates maintenance of the interior of the lock box 100.

[0034] In one embodiment, such as Figure 1 As shown, the top of the lock box 100 is also provided with a handle 703, and a fingerprint module is provided on the handle 703; the lock tongue 404 can be opened by the handle 703, and the lock tongue 404 can also be unlocked by the fingerprint module.

[0035] The above embodiment discloses a door lock body structure. First, by sliding the movable block 602, the movable block 602 is placed in a suitable installation position. Then, screws 603 are installed inside the movable block 602 to fix the position of the lock box 100, achieving quick installation of the lock box 100. This can be adjusted according to different door types. Then, when mechanical unlocking is required, a mechanical key is inserted into the lock cylinder 200, thereby rotating the cam 401, driving the arc gear 402 to rotate, which in turn drives the rack 403 to move, simultaneously driving the spring 405 and the latch 404 to move. When the latch 405... After the 4-card is inserted into the door frame, it presses against the rack 403 under the action of the spring 405, locking the bolt 404 inside the door frame. When smart password or fingerprint unlocking is required, the user places their finger on the fingerprint module, presses the password on the display screen 300, and then transmits the unlock signal to the control module 702. The control module 702 activates the electromagnet 502, which uses magnetic force to attract the iron block 501, thereby driving the fixed block 408 to move inside the first slide groove 406, thereby driving the bolt 404 to move and unlocking. The magnetic baffle 503 prevents external magnetic force from affecting the iron block 501.

[0036] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A door lock body structure, comprising: Lock box (100); A lock cylinder (200) is installed inside a lock housing (100); A display screen (300) is disposed on one side of the top of the lock box (100); The feature is that it further includes an unlocking component, which includes a cam (401) disposed in the middle of the lock cylinder (200). An arc gear (402) is installed on one side of the cam (401), and the arc gear (402) meshes with a rack (403). A latch (404) is installed at one end of the rack (403), and a spring (405) is installed at the other end of the rack (403). The other end of the spring (405) is installed on the inner wall of the lock box (100). A first sliding groove (406) is provided on the inner wall of the lock box (100). A slider (407) is installed on one side of the rack (403), and the slider (407) is slidably connected to the inside of the first sliding groove (406). A fixing block (408) is also installed inside the first sliding groove (406), and an automatic component for automatically unlocking the latch (404) is provided on the fixing block (408).

2. The gate lock body structure according to claim 1, characterized in that, The automatic component includes an iron block (501) mounted on the side of the slider (407) near the fixed block (408), an electromagnet (502) mounted on one side of the fixed block (408), and a magnetic baffle (503) mounted on the top of the fixed block (408).

3. The gate lock body structure according to claim 1, characterized in that, The lock box (100) has fixing components on both sides for installing the lock box (100).

4. A gate lock body structure according to claim 3, characterized in that, The fixing component includes a second slide (601), and a movable block (602) is slidably connected inside the second slide (601). A screw (603) is provided inside the movable block (602).

5. A gate lock body structure according to claim 1, characterized in that, The battery box (701) is installed inside the lock box (100).

6. The gate lock body structure according to claim 1, characterized in that, The lock box (100) is equipped with a control module (702).

7. A gate lock body structure according to claim 1, characterized in that, The top of the lock box (100) is fitted with a lock cover.

8. A gate lock body structure according to claim 1, characterized in that, The top of the lock box (100) is also provided with a handle (703), and a fingerprint module is provided on the handle (703).

Citation Information

Patent Citations

  • Door lock body

    CN212867163U