Novel password door handle lock
By combining a mechanical combination lock and a lock cylinder into a combination lock, the problems of large size and inconvenience of use are solved, achieving a slim and convenient user experience, and avoiding the risks of power failure and key duplication associated with electronic locks.
Patent Information
- Application Number
- CN202423298014.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing combination locks are bulky, inconvenient to use, and pose security risks such as power failure of electronic locks or easy duplication of keys.
A novel combination lock for door handles is designed, which adopts a structure that combines a mechanical combination dial with a lock cylinder. By evenly distributing the combination dials at the handle position, the overall size is reduced, and the ease of operation is improved through limit blocks and spring structures.
This design achieves a slim and lightweight door lock, avoiding the risks of electronic lock power failure and key card duplication, making it more convenient to use and suitable for installation on small door panels.
Smart Images

Figure CN223707335U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to password door lock technical field especially relates to a novel password door handle lock. BACKGROUND
[0002] There are many classifications of door locks, and the requirements for door locks are different in various occasions. Ordinary families generally use anti-theft door locks, which are high in safety and relatively cheap. As a security and protection product, the door lock must have safety and stability. Safety can be measured from two aspects. First, resistance to intentional damage, mischief and intentional prying, drilling and other violent damage. In this regard, the mechanical strength of mechanical locks and electronic door locks generally meets the requirements. Among all types of door locks, only the radio frequency card electronic door lock is fully enclosed, and its safety is the best. Second, prevention of technical opening. The ability of mechanical locks to prevent technical opening is poor. Regardless of the structure of the mechanical lock, it can be opened by other means. The key can be copied, which is a major security risk.
[0003] The existing door lock has a large volume. The electronic password lock is compatible with the mechanical structure, which causes the overall volume to be large, the appearance to be heavy, and the individual electronic lock cover to be invalid and unable to be opened when the electronic power fails. In the electronic door lock, the magnetic card has no password limit, and the key card is easy to be copied. The traditional key type door lock is easy to lose the key, and the overall use is not convenient. Therefore, a novel password door handle lock is provided. UTILITY MODEL CONTENTS
[0004] The utility model aims at solving the problems of large volume and inconvenient use of the existing compatible password door handle lock, and provides a novel password door handle lock.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] A novel password door handle lock, comprising a rear lock cover and a cover plate, the rear lock cover is movably connected with the cover plate at the front end, the rear lock cover is internally provided with a connecting plate, the connecting plate is connected and installed with the inner wall of the rear lock cover, the surface of the front end of the connecting plate is internally embedded with a limiting plate, one side of the limiting plate is provided with a lock cylinder, the surface of the front end of the limiting plate is uniformly provided with a password disc, and the password disc is rotatably connected in the limiting plate.
[0007] Preferably, the password disc is sleeved with a lock sleeve in the middle, the outer wall of the lock sleeve is uniformly provided with a limiting block, and the bottom of the password disc is provided with a limiting groove matched with the limiting block.
[0008] Preferably, the inner wall of the lock sleeve is sleeved with a spring, the center position of the spring is provided with a bolt, the bolt is coaxially arranged with the spring, and the bolt is connected and installed through the lock sleeve.
[0009] Preferably, mounting holes are uniformly arranged on the surface of the limiting plate, and a protruding block is arranged on one side of the mounting hole.
[0010] Preferably, a dial block is arranged at one end of the limiting plate, and a notch is arranged at the bottom of the lock core.
[0011] Preferably, an installation groove is integrally arranged on the inner wall of the rear lock cover shell, and the installation groove is in screw connection with the bolt.
[0012] Preferably, limiting columns are uniformly arranged on the inner wall of the rear lock cover shell, a through hole is arranged on the surface of the connecting plate and matched with the limiting column, and the connecting plate is clamped with the rear lock cover through the limiting column.
[0013] Compared with the prior art, the novel coded door handle lock has the following beneficial effects:
[0014] 1. The coded dials are arranged at the handle position, so that the overall volume of the door handle is lighter and thinner, the mechanical structure of the coded dial door lock solves the defect that the traditional door lock cannot be opened due to loss of keys, avoids the defect that the electronic door lock cannot be opened due to daily battery failure, avoids the risk of key card copying, reduces the occupied space, and is more convenient and beautiful.
[0015] 2. The device combines the door handle and the lock core, reduces the overall volume of the door handle lock, is more convenient to use than the existing large-volume electronic coded lock, is suitable for small-area door plate installation, and improves the overall use performance of the device. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a three-dimensional structure schematic view of the novel coded door handle lock.
[0017] Figure 2 It is a coded dial installation position structure schematic view of the novel coded door handle lock.
[0018] Figure 3 It is an explosion structure schematic view of the novel coded door handle lock.
[0019] Figure 4 It is a limiting plate structure schematic view of the novel coded door handle lock.
[0020] Figure 5 It is a notch arrangement position structure schematic view of the novel coded door handle lock.
[0021] Figure 6 It is a coded dial structure schematic view of the novel coded door handle lock.
[0022] In the drawings:
[0023] 1, rear lock cover; 2, cover plate; 3, connecting plate; 4, password disc; 5, lock core; 6, limiting plate; 7, limiting column; 8, mounting groove; 9, mounting hole; 10, protruding block; 11, dial block; 12, notch; 13, lock sleeve; 14, limiting block; 15, spring; 16, bolt. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.
[0025] With reference to Figures 1-6 A novel password door handle lock, comprising a rear lock cover 1 and a cover plate 2, the rear lock cover 1 is movably connected with the cover plate 2 at the front section, the rear lock cover 1 is internally provided with a connecting plate 3, the connecting plate 3 is installed in the inner wall of the rear lock cover 1 through clamping, the front end surface of the connecting plate 3 is internally embeddedly installed with a limiting plate 6, the limiting plate 6 is provided with a lock core 5 at one side, the front end surface of the limiting plate 6 is uniformly provided with a password disc 4, and the password disc 4 is rotatably connected inside the limiting plate 6.
[0026] In the embodiment, the rear lock cover 1 and the cover plate 2 constitute the main structure of the door handle lock, the inner wall of the shell of the rear lock cover 1 is integrally provided with a mounting groove 8, the mounting groove 8 is rotatably connected and installed between the bolt 16, the connecting plate 3 and the limiting plate 6 are clamped and installed inside the shell of the rear lock cover 1 in sequence, the password disc 4 is sequentially buckled in the mounting hole 9, and the device is fixedly connected in the mounting groove 8 through the bolt 16 at the central position. In the use process, the password disc 4 is dialled, when the password number is correct, the notch at the bottom end of the password disc 4 is correspondingly clamped in the protruding block 10, at this time, the protruding block 10 is clamped in the notch 12 by rotating the handle position, the lock core 5 is opened, when the password is changed, the lock core 5 is rotated to the correct password, the password disc 4 is dialled to the required password, and then the lock core 5 is rotated to reset. In actual application, the arrangement mode and the arrangement number of the lock core 5 and the password disc 4 can also be changed according to actual needs, which is not limited here.
[0027] With reference to Figures 4-6 On the basis of the above embodiment, the lock sleeve 13 is sleeved in the middle of the password disc 4, the limiting block 14 is uniformly arranged on the outer wall of the lock sleeve 13, the limiting groove adapted to the limiting block 14 is formed in the bottom of the password disc 4, the limiting block 14 is arranged on the outer wall of the lock sleeve 13 to ensure accurate dialling when the password disc 4 is rotated, and the use effect of the device is improved.
[0028] With reference to Figure 6The spring 15 is arranged in the first password disc 4, and the spring 15 is compressed when the password is correct, so that the pressing block 11 is further matched with the notch 12, and the convenience of the door handle operation is improved.
[0029] With reference to Figures 3-4 The mounting holes 9 are uniformly arranged on the surface of the limiting plate 6, and the convex blocks 10 are arranged on one side of the mounting holes 9; the password disc 4 is matched and installed in the mounting holes 9, and the practicability of the device is improved.
[0030] With reference to Figure 6 The mounting groove 8 is integrally arranged on the inner wall of the rear lock cover 1, and is in screwing connection with the bolt 16; the bolt 16 is in penetrating connection with the password disc 4 and the mounting groove 8, so that the password disc 4 is well rotated.
[0031] Working principle: the rear lock cover 1 and the cover plate 2 form a door handle lock main body structure; the mounting groove 8 is integrally arranged on the inner wall of the rear lock cover 1, and is in screwing connection with the bolt 16; the connecting plate 3 and the limiting plate 6 are in clamping connection in the rear lock cover 1; the password disc 4 is in clamping connection in the mounting holes 9, and is in fixed connection in the mounting groove 8 through the bolt 16; in the using process, the password disc 4 is rotated, and when the password number is correct, the notch at the bottom of the password disc 4 is clamped in the convex block 10; at this time, the convex block 10 is clamped in the notch 12, and the lock core 5 is opened; the locking sleeve 13 is arranged in the password disc 4, the limiting blocks 14 are uniformly arranged on the outer wall of the locking sleeve 13, the limiting slots are arranged on the bottom of the password disc 4, and are matched with the limiting blocks 14; the limiting blocks 14 are arranged on the outer wall of the locking sleeve 13, so that the password disc 4 is accurately rotated, and the use effect of the device is improved.
[0032] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this; any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, and all of them should be covered in the protection scope of the present application.
[0033] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.
[0034] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.
Claims
1. A new type of cipher door lock comprising a rear lock cover (1) and a cover plate (2), characterized in that, The rear lock cover (1) is movably connected with a cover plate (2), the rear lock cover (1) is internally provided with a connecting plate (3), the connecting plate (3) is connected with the inner wall of the rear lock cover (1), the front end surface of the connecting plate (3) is internally embedded with a limiting plate (6), one side of the limiting plate (6) is provided with a lock cylinder (5), the front end surface of the limiting plate (6) is uniformly provided with a password disc (4), and the password disc (4) is rotatably connected in the limiting plate (6).
2. A new type of cipher door lock according to claim 1, characterized in that, The password disc (4) is sleeved with a lock sleeve (13) in the middle, the outer wall of the lock sleeve (13) is uniformly provided with a limiting block (14), and the bottom of the password disc (4) is provided with a limiting groove matched with the limiting block (14).
3. A new type of cipher door lock according to claim 2, characterized in that, The inner wall of the lock sleeve (13) is sleeved with a spring (15), the center of the spring (15) is provided with a bolt (16), the bolt (16) is coaxially arranged with the spring (15), and the bolt (16) penetrates the lock sleeve (13) and is connected and installed.
4. A new type of cipher door lock according to claim 1, characterized in that, The surface of the limiting plate (6) is uniformly provided with a mounting hole (9), one side of the mounting hole (9) is provided with a protruding block (10), and the password disc (4) is matched and installed in the mounting hole (9).
5. A new type of cipher door lock according to claim 1, characterized in that, One end of the limiting plate (6) is provided with a dial block (11), the bottom of the lock cylinder (5) is provided with a slot (12), and the dial block (11) is matched with the slot (12).
6. A new cipher door lock according to claim 1, characterized in that, The inner wall of the shell of the rear lock cover (1) is integrally provided with a mounting groove (8), and the mounting groove (8) and the bolt (16) are screw-connected and installed.
7. A new cipher door lock according to claim 1, characterized in that, The inner wall of the shell of the rear lock cover (1) is uniformly provided with a limiting column (7), the surface of the connecting plate (3) is provided with a through hole matched with the limiting column (7), and the connecting plate (3) is connected with the rear lock cover (1) through the limiting column (7).