Self-ejection door lock
By designing a latch module and an energy recovery module in the self-locking door lock, the problems of poor anti-theft performance of the latch and difficulty in recovering kinetic energy are solved, thereby improving anti-theft performance and effectively utilizing energy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-20
AI Technical Summary
Existing self-spring door locks have poor anti-theft performance of the latch, and their kinetic energy is difficult to recover and utilize effectively.
A self-springing door lock was designed, which includes a latch module and an energy recovery module. The locking structure of the latch module improves the anti-theft performance, and the energy recovery module converts kinetic energy into electrical energy for storage.
It improves the anti-theft performance of the latch, while also achieving effective recovery and utilization of the lock's kinetic energy, saving operating costs and enhancing the lock's functionality and intelligence.
Smart Images
Figure CN224017011U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to door lock technical field, more specifically, it relates to self -ejection type door lock. BACKGROUND
[0002] With the improvement of people's living standards and the enhancement of safety awareness, the safety requirement of door lock of family and various places is increasing, in the existing door lock product, the anti-theft performance of door lock bolt tongue becomes a key problem, the user often exists randomness in the daily use process, often directly closes the door, and ignores the important step of stretching out the anti-theft door latch using key, which makes the door lock rely on single bolt tongue to guarantee safety, however, this single bolt tongue design has serious safety hazard, when the lawbreaker uses hard card to insert into the door gap and exerts a certain force on the bolt tongue camber, due to the bolt tongue structure characteristics, it is easy to be forced to retract into the door lock, and then the door is easily opened, which greatly reduces the anti-theft performance of the door lock, and brings potential threat to the life and property safety of the user.
[0003] In addition, the internal structure of the existing door lock is relatively complex, there are multiple linkage assemblies to realize the normal opening and closing functions of the door lock, but in the working process of the door lock, the kinetic energy generated when these linkage assemblies interact is difficult to be effectively recycled, a large amount of kinetic energy is wasted in the linkage process, if the kinetic energy can be recycled for doorbell, electronic handle and electronic cat eye equipment, it can also save the use cost of the user.
[0004] In summary, the existing self-ejection type door lock has the defects of poor bolt tongue anti-theft performance and inconvenience for energy recovery. INVENTION CONTENTS
[0005] (I) technical problems solved
[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a self-ejection type door lock, which aims at solving the problems in the above background technology.
[0007] (II) technical scheme
[0008] In order to achieve the above purpose, the utility model realizes the following technical scheme: a self-ejection type door lock, comprising a lock body shell, characterized in that: the inside of the lock body shell is provided with a bolt tongue module, an anti-theft assembly and an energy recovery module, the inner side wall of the lock body shell is rotatably connected with a handle connecting rod transmission seat, the outer surface of the handle connecting rod transmission seat is fixedly connected with a pushing block, the anti-theft assembly is arranged below the handle connecting rod transmission seat, the bolt tongue module is arranged on the upper side of the inner side wall of the lock body shell, and the energy recovery module is arranged on the right side of the bolt tongue module on the inner side wall of the lock body shell.
[0009] The utility model further sets up, the lock tongue module includes lock tongue body, the right end of lock tongue body is rotatoryly connected with the sliding block through the pivot, the inside wall of sliding block is rotatoryly connected with the guide shaft, the both ends of guide shaft are fixedly connected on the upside of lock body shell inside wall, the inside wall of lock tongue body is rotatoryly connected with the rotating wheel, the upper surface and the lower surface of lock tongue body are fixedly connected with the rubber block, the inside wall of lock tongue body is rotatoryly connected with the movable piece through the axle rod, the one end of movable piece is provided with the clamping groove, the one end of lock tongue body is fixedly connected with the limit top block outside movable piece, the outer surface of the one end of movable piece close to axle rod is fixedly connected with the lug block, the outer surface of lug block is fixedly connected with the limit slide rod, the inside wall of lock tongue body is rotatoryly connected with the limit column, the inside wall of limit column is provided with the limit sliding groove, the inside wall of lock body shell is fixedly connected with the limit frame outside the outer surface of lock tongue body, the right side of sliding block is fixedly connected with the third spring, prevent the lock tongue from being retracted, effectively promote the anti-theft performance.
[0010] The utility model further sets up, the energy recovery module includes first connecting rod, first connecting rod fixed connection in the right side surface of sliding block, the inside wall of lock body shell is rotatoryly connected with the power lever, the upper end of power lever is rotatoryly connected with the right end of first connecting rod, the inside wall of lock body shell is fixedly connected with the micro generator rotor, the outer surface of micro generator rotor is rotatoryly connected with the micro generator shell, the outer surface of micro generator shell is fixedly connected with the fixed tube, the outer surface of fixed tube is provided with the inclined groove, the both ends of fixed tube are fixedly connected with two fly wheels respectively, the outer surface of fixed tube is rotatoryly connected with the rotating ring, the outer surface of rotating ring is provided with the limit slot, the inside wall of rotating ring is rotatoryly connected with the ratchet through the axle rod, the outer surface of ratchet is fixedly connected with the second spring, the inside wall of lock body shell is fixedly connected with the charging controller right of anti-theft component, the inside bottom wall of lock body shell is fixedly connected with the battery, can utilize the kinetic energy that each component linkage in lock body shell produces, and it is converted into electric energy and is stored.
[0011] The utility model further sets up, the outer surface of rubber block and the inside wall of lock body shell abut, the outer surface of the upper end of lever and the outer surface of the downside of sliding block abut, reduce the kinetic energy when the lock tongue body pops out, the clamping groove is provided with a plurality of and evenly distributes in rectangular array mode, the right end of third spring is fixedly connected with the inside wall of lock body shell, the outer surface of the end of limit slide rod and the inside wall of limit sliding groove are rotatoryly connected, the movable piece sets up two and symmetrically sets up up and down, first spring is fixedly connected between two movable pieces, provides structural support for lock tongue module, and further strengthens the anti-theft performance.
[0012] The utility model further sets up, one end of second spring with the inside wall of rotating ring is fixedly connected through connecting block, the limit groove is opened with a plurality of and presents ring array mode even distribution, the lower extreme of power assisting rod is matched with the inside wall of limit groove, the one end of micro generator rotor leads out wire and is connected with charge controller electrically, charge controller is connected with battery electrically through wire, battery can be connected with electronic door handle, cat eye and doorbell part electrically through wire, ensure the linkage of each component, make the recycled energy be stored in battery, supply other equipment component on the door uses, save other equipment electric energy.
[0013] (Three) beneficial effect
[0014] Compared with the prior art, the utility model provides a self -ejection type door lock has the following beneficial effects:
[0015] 1、 this self -ejection type door lock, through the setting of lock tongue module, make this self -ejection type door lock have the effect of improving the anti -theft performance of lock tongue body, through the cooperation of movable sheet, support lug, limit slide bar, limit column and limit frame, when the lawbreaker uses hard card to pry the lock tongue in the process of using, the card will press down movable sheet, through the transmission effect makes limit column from the inside of lock tongue body, further forms the limit at limit frame, prevents the retraction of lock tongue body, thereby reaches the purpose of improving the anti -theft performance of lock tongue body.
[0016] 2、 this self -ejection type door lock, through the setting of energy recovery module, make this self -ejection type door lock have the effect of recycling the kinetic energy generated when the multiple components inside the lock body shell are linked, through the cooperation of first connecting rod, power assisting rod, micro generator shell, fixed pipe, rotating ring, ratchet, charge controller and battery, in the process of using, the retraction of lock tongue body can drive micro generator shell to rotate through a series of transmission effects every time, further generates electric energy through the cooperation of micro generator rotor, and the electric energy is stored in the inside of battery after being converted by charge controller, can be provided for other electronic equipment on the door, thereby reaches the purpose of facilitating the utilization of kinetic energy when opening and closing door.
[0017] 3、 this self -ejection type door lock, through the setting of card slot, make this self -ejection type door lock have the effect of further improving the anti -theft performance, through the cooperation of movable sheet and card slot, in the process of using, can prevent the phenomenon that movable sheet is stuck and pry open when being stuck, when the card is inserted, along the arc edge of movable sheet slide, at this moment, it will be stuck in the inside of card slot, prevent further sliding, lock tongue body will not continue to retract inside the lock body shell, thereby reaches the purpose of further improving the anti -theft performance. ACCURACY OF DRAWINGS
[0018] Figure 1 It is the front view three-dimensional structure schematic view of the utility model;
[0019] Figure 2 It is the rear view three-dimensional structure schematic view of the utility model;
[0020] Figure 3 It is the lock tongue module three-dimensional structure schematic view of the utility model;
[0021] Figure 4 It is the structure schematic view of the utility model movable piece being extruded state;
[0022] Figure 5 It is the lock tongue module internal section structure schematic view of the utility model;
[0023] Figure 6 It is the lock tongue body internal component structure schematic view of the utility model;
[0024] Figure 7 It is the structure schematic view of the utility model energy recovery module;
[0025] Figure 8 It is the structure schematic view of the utility model fixed pipe front view section;
[0026] Figure 9 It is the structure schematic view of the utility model rotating ring internal three-dimensional section.
[0027] In the drawing: 1, lock body shell;2, handle connecting rod transmission seat;3, knob;4, anti-theft assembly;5, guide shaft;6, sliding block;7, lock tongue body;8, rotating wheel;9, rubber block;10, movable piece;11, clamping groove;12, limit top block;13, supporting lug block;14, limit sliding rod;15, limit column;16, limit sliding groove;17, first spring;18, limit frame;19, first connecting rod;20, power knob;21, micro generator shell;22, fixed pipe;23, inclined groove;24, micro generator rotor;25, flywheel;26, rotating ring;27, limit groove;28, ratchet;29, second spring;30, charging controller;31, battery;32, third spring. DETAILED DESCRIPTION
[0028] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with embodiments.
[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.
[0030] In the utility model, in the case where no opposite statement is made, the orientation such as "upper, lower" is usually for the direction shown in the drawing, or for the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is usually for the left and right shown in the drawing; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the utility model.
[0031] Please refer to Figures 1-9 The utility model discloses a self -ejecting door lock, including lock body shell 1, the inside of lock body shell 1 is provided with lock bolt module, anti -theft subassembly 4 and energy recovery module, the inner side wall of lock body shell 1 is rotatably connected with handle connecting rod transmission seat 2, the outer surface of handle connecting rod transmission seat 2 is fixedly connected with the knob 3, and the anti -theft subassembly 4 is set up below handle connecting rod transmission seat 2, and the lock bolt module is set up on the upper side of the inner side wall of lock body shell 1, and the energy recovery module is set up on the inner side wall of lock body shell 1 and is located at the right side of lock bolt module.
[0032] Specifically, through the setting of lock bolt module and energy recovery module, when rotating the handle, handle connecting rod transmission seat 2 rotates, drives knob 3 to move, and then influences the action of the anti -theft subassembly 4 and lock bolt module below to realize the lock or lock, and the lock bolt telescopic will drive energy recovery module to operate, and part kinetic energy is converted into electric energy and is stored, improves the functionality and practicality of door lock.
[0033] Please refer to Figures 1-7 The lock bolt module includes lock bolt body 7, the right end of lock bolt body 7 is rotatably connected with sliding block 6 through pivot, the inner side wall of sliding block 6 is slidably connected with guide shaft 5, both ends of guide shaft 5 are fixedly connected on the upper side of the inner side wall of lock body shell 1, the inner side wall of lock bolt body 7 is rotatably connected with rotating wheel 8, the upper surface and the lower surface of lock bolt body 7 are fixedly connected with rubber block 9, the inner side wall of lock bolt body 7 is rotatably connected with movable piece 10 through shaft rod, one end of movable piece 10 is provided with clamping groove 11, one end of lock bolt body 7 is located on the outer side of movable piece 10 and is fixedly connected with limit top block 12, the outer surface of the end of movable piece 10 close to shaft rod is fixedly connected with lug block 13, the outer surface of lug block 13 is fixedly connected with limit sliding rod 14, the inner side wall of lock bolt body 7 is slidably connected with limit column 15, the inner side wall of limit column 15 is provided with limit sliding groove 16, the inner side wall of lock body shell 1 is fixedly connected with limit frame 18 on the outer surface of lock bolt body 7, the right side of sliding block 6 is fixedly connected with third spring 32.
[0034] The outer surface of the rubber block 9 is in abutment with the inner side wall of the lock body shell 1, the outer surface of the upper end of the poking block 3 is in abutment with the outer surface of the lower side of the sliding block 6, the clamping groove 11 is provided with a plurality of and uniformly distributed in a rectangular array, the right end of the third spring 32 is fixedly connected with the inner side wall of the lock body shell 1, the outer surface of the end of the limiting sliding rod 14 is in sliding connection with the inner side wall of the limiting sliding groove 16, and the movable piece 10 is provided with two and symmetrically arranged.
[0035] Specifically, when the door is closed, the lock tongue body 7 is stretched out of the lock body shell 1 under the action of the third spring 32. If external force tries to pick the lock, such as a criminal using a hard card to pry the lock tongue, the card presses down the movable piece 10, the movable piece 10 drives the lug block 13 and the limiting sliding rod 14 to move, the limiting column 15 moves along the limiting sliding groove 16, and the limiting column 15 is stretched out from the inside of the lock tongue body 7 and forms a limiting position at the limiting frame 18, thereby preventing the lock tongue body 7 from retracting. The design of the lock tongue module greatly improves the anti-theft performance; the rubber block 9 can reduce the kinetic energy when the lock tongue body 7 is popped out, reduce the impact noise, and increase the friction with the lock body shell 1, so that the lock tongue is more stable; the two movable pieces 10, the clamping groove 11, the limiting sliding rod 14, the limiting column 15 and the limiting frame 18 and other components cooperate with each other to effectively prevent the lock tongue from being easily retracted by external force, thereby ensuring the safety of the door.
[0036] Please refer to Figure 2 、 Figure 7 、 Figure 8 and Figure 9 , the energy recovery module comprises a first connecting rod 19, the first connecting rod 19 is fixedly connected to the right side surface of the sliding block 6, the inner side wall of the lock body shell 1 is rotatably connected with a power-assisted poking rod 20, the upper end of the power-assisted poking rod 20 is rotatably connected with the right end of the first connecting rod 19, the inner side wall of the lock body shell 1 is fixedly connected with a micro generator rotor 24, the outer surface of the micro generator rotor 24 is rotatably connected with a micro generator shell 21, the outer surface of the micro generator shell 21 is fixedly connected with a fixed tube 22, the outer surface of the fixed tube 22 is provided with an inclined groove 23, the two ends of the fixed tube 22 are respectively fixedly connected with two flywheels 25, the outer surface of the fixed tube 22 is rotatably connected with a rotating ring 26, the outer surface of the rotating ring 26 is provided with a limiting groove 27, the inner side wall of the rotating ring 26 is rotatably connected with a ratchet 28 through a shaft, the outer surface of the ratchet 28 is fixedly connected with a second spring 29, the inner side wall of the lock body shell 1 is fixedly connected with a charging controller 30 on the right side of the anti-theft assembly 4, and the inner bottom wall of the lock body shell 1 is fixedly connected with a storage battery 31.
[0037] One end of the second spring 29 is fixedly connected with the inner side wall of the rotating ring 26 through a connecting block, the limiting groove 27 is opened with a plurality of and evenly distributed in a ring array mode, the lower end of the power-assisted driving rod 20 is adapted with the inner side wall of the limiting groove 27, one end of the micro generator rotor 24 leads out a wire and is electrically connected with the charging controller 30, the charging controller 30 is electrically connected with the storage battery 31 through a wire, the storage battery 31 can be electrically connected with the electronic door handle, the cat eye and the doorbell component through a wire.
[0038] Specifically, in the process of retracting the lock tongue body 7, the sliding block 6 moves to the right, driving the first connecting rod 19 to move, and the first connecting rod 19 pulls the power-assisted driving rod 20 to rotate. The lower end of the power-assisted driving rod 20 cooperates with the limiting groove 27 on the rotating ring 26, so that the rotating ring 26 rotates, the ratchet 28 interacts with the inclined groove 23 on the fixed tube 22 under the action of the second spring 29, driving the micro generator housing 21 to rotate, the micro generator rotor 24 moves relative to the housing to generate electric energy, the electric energy is converted by the charging controller 30 and stored in the storage battery 31, the energy recovery module can convert the kinetic energy generated by the linkage of each component in the lock body into electric energy and store it. In the energy recovery process, the lower end of the power-assisted driving rod 20 is clamped into the limiting groove 27 of the rotating ring 26, driving the rotating ring 26 to rotate, the ratchet 28 cooperates with the inclined groove 23 of the fixed tube 22 under the action of the second spring 29, ensuring the one-way rotation of the rotating ring 26. On the one hand, it realizes the effective use of energy and saves energy; on the other hand, the stored electric energy can be used by the electronic door handle, the cat eye and the doorbell component, reducing the use cost of these devices, reducing the trouble of additional wiring and replacing the battery, ensuring the stable storage and output of electric energy, realizing the recycling of energy, improving the intelligent and energy-saving level of the whole door lock system.
[0039] In summary, the overall device in use: hold the handle and turn, drive the handle connecting rod transmission seat 2 around the lock body shell 1 inside wall rotation, fixed on the handle connecting rod transmission seat 2 outer surface of the block 3 with the rotation, the upper end of the block 3 outer surface and the lower side of the sliding block 6 outer surface abutment, the block 3 rotation when the sliding block 6, make the sliding block 6 along the guide shaft 5 on the lock body shell 1 inside wall on the side of the sliding, the movement of the sliding block 6 drive with the rotation connected bolt body 7, overcome the third spring 32 elastic force to the right retraction, realize the unlocking, release the handle, under the action of the third spring 32, the sliding block 6 left movement, drive the bolt body 7 left extension, until the bolt body 7 completely extended, complete the lock, the upper surface and the lower surface of the rubber block 9 and the lock body shell 1 inside wall abutment, buffer the kinetic energy of the bolt when the pop, reduce the noise when closing the door, while increasing the stability of the bolt, when the lawbreaker using hard card inserted into the gap pry the bolt, card down the activity piece 10, the activity piece 10 around the shaft rotation, drive the lug block 13 and fixed on the lug block 13 on the limit slide rod 14 movement, limit slide rod 14 in the limit column 15 inside wall of the limit slide groove 16 in the sliding, push the limit column 15 from the inside of the bolt body 7 deep extension, the extension of the limit column 15 in the lock body shell 1 inside wall fixed connection limit frame 18 at the limit, prevent the bolt body 7 retract, thus enhance the anti-theft performance, in addition, the activity piece 10 one end of the plurality of rectangular array distribution of the card slot 11, can prevent the activity piece 10 is stuck when still pry open when the card is inserted into the activity piece 10 along the arc edge of the slide, will be stuck in the card slot 11, further prevent the bolt body 7 retract, each time the bolt body 7 retract, the sliding block 6 to the right, drive the first connecting rod 19 fixed on the right side of the right movement, the first connecting rod 19 pull the power drive rod 20 around the lock body shell 1 inside wall rotation, the power drive rod 20 lower end and the outer surface of the rotating ring 26 ring array distribution limit groove 27 cooperation, make the rotating ring 26 rotation, the rotating ring 26 inside wall rotation connected ratchet 28 under the action of the second spring 29, with the fixed tube 22 outer surface of the inclined slot 23 interaction, drive the micro generator shell 21 rotation, the micro generator shell 21 and fixed in the lock body shell 1 inside wall of the micro generator rotor 24 relative motion produces electrical energy, electrical energy through the wire transmission to the charge controller 30, after the conversion of the charge controller 30 stored in the lock body shell 1 inside bottom wall fixed connection battery 31, the battery 31 through the wire for electronic door handle, cat eye and doorbell components power supply, realize the energy recycling, save the power of these devices.
[0040] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection or other known connection mode, which will not be described here. In the above, whenever there is a fixed connection, welding is preferred. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A self-locking door lock, comprising a lock body shell (1), characterized in that: The lock body shell (1) is provided with a lock tongue module, an anti-theft component (4) and an energy recovery module. The inner wall of the lock body shell (1) is rotatably connected to a handle linkage transmission seat (2). The outer surface of the handle linkage transmission seat (2) is fixedly connected to a toggle block (3). The anti-theft component (4) is located below the handle linkage transmission seat (2). The lock tongue module is located on the upper side of the inner wall of the lock body shell (1). The energy recovery module is located on the inner wall of the lock body shell (1) to the right of the lock tongue module.
2. A self-opening door lock according to claim 1, characterized in that: The latch module includes a latch body (7). A sliding block (6) is rotatably connected to the right end of the latch body (7) via a rotating shaft. A guide shaft (5) is slidably connected to the inner wall of the sliding block (6). The two ends of the guide shaft (5) are fixedly connected to the upper side of the inner wall of the lock body shell (1). A rotating wheel (8) is rotatably connected to the inner wall of the latch body (7). Rubber blocks (9) are fixedly connected to both the upper and lower surfaces of the latch body (7). A movable piece (10) is rotatably connected to the inner wall of the latch body (7) via a shaft. A slot (11) is provided at one end of the movable piece (10). One end of the main body (7) is fixedly connected to a limiting top block (12) on the outside of the movable piece (10). A support lug (13) is fixedly connected to the outer surface of the movable piece (10) near the shaft. A limiting slide rod (14) is fixedly connected to the outer surface of the support lug (13). A limiting post (15) is slidably connected to the inner wall of the lock tongue body (7). A limiting slide groove (16) is opened on the inner wall of the limiting post (15). A limiting frame (18) is fixedly connected to the inner wall of the lock body shell (1) on the outer surface of the lock tongue body (7). A third spring (32) is fixedly connected to the right side of the sliding block (6).
3. A self-opening door lock according to claim 1, characterized in that: The energy recovery module includes a first connecting rod (19), which is fixedly connected to the right side of the sliding block (6). An assist lever (20) is rotatably connected to the inner wall of the lock body shell (1). The upper end of the assist lever (20) is rotatably connected to the right end of the first connecting rod (19). A micro generator rotor (24) is fixedly connected to the inner wall of the lock body shell (1). A micro generator shell (21) is rotatably connected to the outer surface of the micro generator rotor (24). A fixing tube (22) is fixedly connected to the outer surface of the micro generator shell (21). The outer surface of the fixing tube (22) is... The surface is provided with a slanted groove (23). Two flywheels (25) are fixedly connected to both ends of the fixed tube (22). A rotating ring (26) is rotatably connected to the outer surface of the fixed tube (22). A limit groove (27) is provided on the outer surface of the rotating ring (26). A ratchet (28) is rotatably connected to the inner side wall of the rotating ring (26) through a shaft. A second spring (29) is fixedly connected to the outer surface of the ratchet (28). A charging controller (30) is fixedly connected to the inner side wall of the lock body shell (1) on the right side of the anti-theft component (4). A storage battery (31) is fixedly connected to the inner bottom wall of the lock body shell (1).
4. A self-opening door lock according to claim 2, characterized in that: The outer surface of the rubber block (9) abuts against the inner wall of the lock body shell (1), the outer surface of the upper end of the actuating block (3) abuts against the outer surface of the lower side of the sliding block (6), the slots (11) are provided in a plurality of uniformly distributed in a rectangular array, the right end of the third spring (32) is fixedly connected to the inner wall of the lock body shell (1), the outer surface of the end of the limiting slide rod (14) is slidably connected to the inner wall of the limiting slide groove (16), the movable piece (10) is provided in two symmetrically arranged, and the first spring (17) is fixedly connected between the two movable pieces (10).
5. A self-opening door lock according to claim 3, characterized in that: One end of the second spring (29) is fixedly connected to the inner wall of the rotating ring (26) by a connecting block. The limiting groove (27) is provided with several grooves and is evenly distributed in a ring array. The lower end of the assist lever (20) is adapted to the inner wall of the limiting groove (27). One end of the micro generator rotor (24) leads out a wire and is electrically connected to the charging controller (30). The charging controller (30) is electrically connected to the storage battery (31) through a wire. The storage battery (31) can be electrically connected to the electronic door handle, peephole and doorbell components through a wire.