Anti-theft door handle
By designing the limit structure in the door handle of the fingerprint lock, we ensure that the lock hole cannot be opened under normal circumstances, solving the problem of anti-theft defects of existing fingerprint locks, and achieving efficient anti-theft performance in the presence and absence of electricity and Convenient use.
Patent Information
- Application Number
- CN202420925922.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The existing fingerprint lock can be opened with a mechanical key when the power is cut off. There are anti-theft defects. Anyone can open the keyhole, giving criminals an opportunity to take advantage of it.
An anti-theft door handle is designed, including a lock frame, door handle, lock hole and lock cover. The lock hole is equipped with a mechanical lock hole and a limit structure. The limit structure includes a engaging groove, a engaging rod, a fixed block, and a slider. and electromagnetic plates ensure that the keyhole cannot be opened under normal circumstances and improve the anti-theft performance.
When the fingerprint lock is powered, the keyhole cannot be opened, which improves the anti-theft performance; when the fingerprint lock is powered off, the limit is lifted, and the use of a spare keyhole is allowed to ensure the normal use of the door and enhances the anti-theft performance and convenience.
Smart Images
Figure CN222478379U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of door handles, in particular to an anti-theft door handle. Background Art
[0002] Fingerprint lock is a kind of intelligent lock which uses human fingerprint as identification carrier and means. It is the perfect crystallization of computer information technology, electronic technology, mechanical technology and modern hardware technology. Fingerprint lock is generally composed of two parts: electronic identification and control, and mechanical linkage system. Its core components include motherboard, clutch (semi-automatic lock), fingerprint collector, password technology, microprocessor (CPU), intelligent emergency key, power supply equipment (battery charger transformer, etc.).
[0003] At present, the existing password locks are all preset with mechanical keyholes to prevent the fingerprint lock from being opened by a mechanical key when the fingerprint lock is powered off. However, the setting of the keyhole is defective, that is, anyone can open the keyhole, which gives criminals an opportunity to take advantage of it. For this reason, we propose a door handle that can prevent theft. Utility Model Content
[0004] Based on this, the purpose of the utility model is to provide an anti-theft door handle to solve the technical problems mentioned in the above background.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-theft door handle, comprising a lock frame, a door handle is installed on the external end surface of the lock frame, and the door handle is rotatably connected to the lock frame, a lock hole is provided on the end surface of the lock frame below the door handle, and a mechanical lock hole capable of opening a fingerprint lock is provided inside the lock hole, and a lock cover for protecting the lock hole is provided at the end of the lock hole, and a limiting structure for limiting the lock cover to achieve anti-theft is provided inside the lock frame.
[0006] By adopting the above technical solution, the spare lock hole can be prevented from being opened when the fingerprint lock is in normal use with electricity, thereby improving the anti-theft capability.
[0007] The utility model is further configured that the limiting structure includes a clamping groove provided on the outer wall of the lock cover, and a clamping rod installed inside the lock frame is clamped and connected in the clamping groove.
[0008] By adopting the above technical solution, a limiting effect on the engaging rod is achieved.
[0009] The utility model is further configured that a fixing block is arranged at the end of the clamping rod and outside the clamping rod, and a cavity is opened inside the fixing block.
[0010] By adopting the above technical solution, the effect of assisting the movement of the engaging rod is achieved.
[0011] The utility model is further configured that a slide plate slidably connected to the inner wall of the fixing block is arranged inside the fixing block, and the end of the slide plate is fixedly connected to the end of the locking rod.
[0012] By adopting the above technical solution, the effect of assisting the sliding of the locking rod is achieved.
[0013] The utility model is further configured that the outer wall of the plate is connected to a return spring installed on the inner wall of the fixed block, and the other end surface of the slide plate is fitted with an electromagnetic plate, and the electromagnetic plate is electrically connected to the lock frame.
[0014] By adopting the above technical solution, a limiting effect on the engaging rod is achieved.
[0015] The utility model is further configured such that the outer wall of the door handle is sleeved with a sheath, the sheath is made of a water-absorbing material, and the sheath is slidably connected to the outer wall of the door handle, a sliding groove is provided on the end face of the door handle, and the inner wall of the sliding groove is slidably connected to a slider fixedly connected to the inner wall of the sheath.
[0016] By adopting the above technical solution, the anti-static protection effect for the user and the effect of wiping water from the hands are achieved.
[0017] The utility model is further configured such that a wiping portion is fixedly provided at the end of the sheath to wipe the door handle fingerprint recognition module.
[0018] By adopting the above technical solution, the fingerprint recognition module can be wiped.
[0019] In summary, the utility model mainly has the following beneficial effects:
[0020] 1. The utility model is provided with a lock cover, a locking groove, a locking rod, a fixing block, a sliding plate and an electromagnetic plate. First, under normal circumstances, the user can turn the door handle to open the anti-theft door by means of fingerprints, passwords, etc. Therefore, under normal circumstances, the electricity in the lock frame will energize the electromagnetic plate through the wire, thereby achieving an adsorption and limiting effect on the sliding plate, and then achieving a limiting effect on the locking rod. At this time, the lock cover cannot be opened under the action of external force, thereby improving the anti-theft performance of the door handle;
[0021] 2. The utility model provides a slide plate and a reset spring. When the fingerprint lock runs out of power and needs to use the spare lock hole, the adsorption force of the electromagnetic plate on the slide plate disappears, thereby releasing the limit on the lock cover. Then the lock cover can be pulled outward, and the engaging rod will retract under the action of external force to complete the removal of the lock cover. While enhancing the anti-theft performance, it does not delay the normal use of the lock hole, which is convenient and quick.
[0022] 3. The utility model provides a protective cover and a cleaning part. When a user uses the door handle, the hand will first contact the protective cover, so that the protective cover can prevent static electricity from causing discomfort to the user. The protective cover can also wipe the water on the user's hand to prevent affecting the use of the fingerprint recognition module. Furthermore, when there are foreign objects remaining on the fingerprint recognition module, the protective cover can be slid and the cleaning part can be used to wipe the fingerprint recognition module to ensure the normal use of the fingerprint recognition module. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0024] Figure 2 It is a schematic diagram of the internal structure of the utility model;
[0025] Figure 3 It is a schematic diagram of the limiting structure of the utility model;
[0026] Figure 4 This is a schematic diagram of the door handle structure of the utility model;
[0027] Figure 5 This is a schematic diagram of the chute structure of the utility model;
[0028] Figure 6 It is a schematic diagram of the second embodiment of the utility model.
[0029] In the figure: 1. lock frame; 2. door handle; 3. lock hole; 4. lock cover; 5. engaging groove; 6. engaging rod; 7. fixing block; 8. slide plate; 9. return spring; 10. electromagnetic plate; 11. sheath; 12. wiping part; 13. slide groove; 14. slide block; 15. extension part. DETAILED DESCRIPTION
[0030] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.
[0031] The following describes an embodiment of the utility model based on its overall structure.
[0032] Embodiment 1
[0033] A burglar-proof door handle, such as Figure 1-5As shown, it comprises a lock frame 1, a door handle 2 is installed on the outer end surface of the lock frame 1, and the door handle 2 is rotatably connected to the lock frame 1, a lock hole 3 is opened on the end surface of the lock frame 1 below the door handle 2, and a mechanical lock hole capable of opening a fingerprint lock is arranged inside the lock hole 3, and a lock cover 4 for protecting the lock hole 3 is arranged at the end of the lock hole 3, and a limiting structure for limiting the lock cover 4 to prevent theft is arranged inside the lock frame 1;
[0034] Furthermore, the limiting structure in this embodiment includes a snap-fitting groove 5 provided on the outer wall of the lock cover 4 , and a snap-fitting rod 6 installed inside the lock frame 1 is snap-fitted and connected in the snap-fitting groove 5 .
[0035] See also Figure 3 A fixing block 7 is provided at the end of the locking rod 6 and on the outside of the locking rod 6, and a cavity is opened inside the fixing block 7. A slide plate 8 is provided inside the fixing block 7 and is slidably connected to the inner wall of the fixing block 7. The end of the slide plate 8 is fixedly connected to the end of the locking rod 6 to assist the movement of the locking rod 6.
[0036] See also Figure 3 The outer wall of the slide plate 8 is connected to a reset spring 9 installed on the inner wall of the fixed block 7, and the other end surface of the slide plate 8 is fitted with an electromagnetic plate 10, and the electromagnetic plate 10 is electrically connected to the lock frame 1, so as to limit the locking rod 6 and assist the locking rod 6 in moving and resetting.
[0037] See also Figure 4-5 The outer wall of the door handle 2 is sleeved with a sheath 11, which is made of a water-absorbing material and is slidably connected to the outer wall of the door handle 2. A slide groove 13 is provided on the end face of the door handle 2, and a slider 14 fixedly connected to the inner wall of the slide groove 13 is slidably connected to the inner wall of the sheath 11, thereby realizing anti-static protection for the user and water cleaning effect on the user's hands.
[0038] See also Figure 4 A wiping portion 12 is fixedly provided at the end of the sheath 11 to wipe the fingerprint recognition module of the door handle 2.
[0039] Embodiment 2
[0040] like Figure 6 FIG. 1 is a second embodiment of the wiping portion in the present embodiment, wherein the extension portion 15 in the figure is a replacement for the wiping portion 12 in the first embodiment;
[0041] For details, please refer to Figure 6 An extension portion 15 is provided on the outer wall of one side of the sheath 11 close to the fingerprint recognition module, and a cleaning cloth that fits the end surface of the door handle 2 is installed on the inner end surface of the extension portion 15 through Velcro, and the extension portion 15 is connected to the outer wall of the sheath 11 through a torsion spring.
[0042] The working principle of the utility model is as follows: first, under normal circumstances, the user can turn the door handle 2 to open the anti-theft door by means of fingerprints, passwords, etc. Therefore, under normal circumstances, the electricity in the lock frame 1 will energize the electromagnetic plate 10 through the wire, thereby achieving the adsorption and limiting effect of the slide plate 8, and then achieving the limiting effect of the locking rod 6. At this time, the lock cover 4 cannot be opened under the action of external force, thereby improving the anti-theft performance of the door handle 2;
[0043] Furthermore, when the fingerprint lock is out of power and the spare lock hole 3 needs to be used, the adsorption force of the electromagnetic plate 10 on the slide plate 8 disappears, thereby releasing the limit on the lock cover 4, and then the lock cover 4 can be pulled outward, and the engaging rod 6 will retract under the action of the external force to complete the removal of the lock cover 4, which enhances the anti-theft performance while not delaying the normal use of the lock hole 3, which is convenient and quick;
[0044] In addition, when the user uses the door handle 2, the hand will first come into contact with the cover 11, so that the cover 11 can prevent static electricity from causing discomfort to the user, and the cover 11 can also wipe the water on the user's hand to prevent affecting the use of the fingerprint recognition module. Furthermore, when there is foreign matter remaining on the fingerprint recognition module, the cover 11 can be slid and the fingerprint recognition module can be wiped using the cleaning part 12 to ensure the normal use of the fingerprint recognition module.
[0045] The working principle of the second embodiment of the utility model is: sliding the sheath 11, at this time the sheath 11 can push the extension part 15 to move, so that the cleaning cloth inside the extension part 15 can wipe and clean the fingerprint recognition module. In addition, the cleaning cloth 15 can be replaced by rotating the extension part 15 and utilizing the convenient disassembly and assembly performance of the Velcro.
[0046] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.
Claims
1. An anti-theft door handle, comprising a lock frame (1), characterized in that: The outer end surface of the lock frame (1) is provided with a door handle (2), and the door handle (2) is rotatably connected to the lock frame (1); the end surface of the lock frame (1) is provided with a lock hole (3) below the door handle (2); a mechanical lock hole capable of opening a fingerprint lock is provided inside the lock hole (3); a lock cover (4) for protecting the lock hole (3) is provided at the end of the lock hole (3); and a limiting structure for limiting the lock cover (4) to prevent theft is provided inside the lock frame (1).
2. The anti-theft door handle according to claim 1, characterized in that: The limiting structure comprises a snap-fitting groove (5) provided on the outer wall of the lock cover (4), and a snap-fitting rod (6) installed inside the lock frame (1) is snap-fitted and connected in the snap-fitting groove (5).
3. The anti-theft door handle according to claim 2, characterized in that: A fixing block (7) is arranged at the end of the locking rod (6) and outside the locking rod (6), and a cavity is provided inside the fixing block (7).
4. The anti-theft door handle according to claim 3, characterized in that: A slide plate (8) is provided inside the fixed block (7) and is slidably connected to the inner wall of the fixed block (7), and an end of the slide plate (8) is fixedly connected to the end of the locking rod (6).
5. The anti-theft door handle according to claim 4, characterized in that: The outer wall of the slide plate (8) is connected to a return spring (9) mounted on the inner wall of the fixed block (7).
6. The anti-theft door handle according to claim 4, characterized in that: An electromagnetic plate (10) is fitted on the other end surface of the slide plate (8), and the electromagnetic plate (10) is electrically connected to the locking frame (1).
7. The anti-theft door handle according to claim 1, characterized in that: The outer wall of the door handle (2) is sleeved with a protective sleeve (11).
8. The anti-theft door handle according to claim 7, characterized in that: The protective sleeve (11) is made of a water-absorbing material, and the protective sleeve (11) is slidably connected to the outer wall of the door handle (2).
9. The anti-theft door handle according to claim 7, characterized in that: A wiping portion (12) is fixedly provided at the end of the protective sleeve (11) to wipe the fingerprint recognition module of the door handle (2).
10. The anti-theft door handle according to claim 7, characterized in that: The end surface of the door handle (2) is provided with a slide groove (13), and the inner wall of the slide groove (13) is slidably connected to a slider (14) fixedly connected to the inner wall of the sleeve (11).