Spring bolt movement mechanism of frame-wrapped door lock

Abstract

A spring bolt movement mechanism of a frame-wrapped door lock is suitable for a door which is not suitable for opening a hole and is provided with a wrapping frame, and comprises a main front body combination, a main rear body combination and a tooth connecting transmission mechanism. Due to the fact that the main front body combination and the main rear body combination are connected into a whole capable of being unlocked and locked in a transmission mode through the tooth connecting transmission mechanism instead of forming a hole in a wrapping frame of a door to enable the main front body combination and the main rear body combination to be connected in a transmission mode, a main clamping plate of the tooth connecting transmission mechanism is in a U shape and is clamped outside the wrapping frame of the door. When the main and front body combination is unlocked through the lock cylinder or the fingerprint module, the lock tongue assembly in the main and rear body combination can be driven to unlock by means of the tooth connecting transmission mechanism, or the knob of the main and rear body combination can be rotated to drive the swing arm, and the swing arm drives the lock tongue mechanism to open and close a door in a room. In this way, the intelligent lock can be installed on a door which is not suitable for punching, a user can enjoy convenience, and meanwhile damage to the door caused by punching is reduced.

Description

Technical Field

[0001] This utility model relates to the field of smart lock technology, and in particular to a bolt movement mechanism for a frame door lock. Background Technology

[0002] With social progress and technological development, smart living is becoming increasingly common. Smart locks play a crucial role in this smart home ecosystem. However, many doors in practical applications are unsuitable for drilling holes. Currently, doors unsuitable for drilling holes are also difficult to install smart locks on. To enable more users to enjoy the convenience of smart locks, increase the overall adoption rate of smart locks, and promote their widespread use, the applicant has developed a latch movement mechanism for door locks installed on framed doors. Summary of the Invention

[0003] The purpose of this utility model is to address the shortcomings and deficiencies of existing technologies by providing a locking tongue movement mechanism for a frame door lock. This mechanism solves the problem of installing smart locks on doors that are not suitable for drilling, allowing users to enjoy convenience while also reducing damage to the door caused by drilling.

[0004] To solve the aforementioned technical problems, this utility model adopts the following technical solution:

[0005] A latch movement mechanism for a frame door lock includes a main front body assembly, a main rear body assembly, and a gear transmission mechanism, wherein:

[0006] The main front assembly includes a lock cylinder, a main gear, a main front shell, a fingerprint module, and a motherboard.

[0007] The main rear body assembly includes a main rear shell, a motor, a motor main gear, a motor driven gear, a knob, a swing arm, a lock cylinder shaft, a lock tongue assembly, a lock tongue base plate, a lock tongue support plate, a pressure stabilizing spring, and a main rear plate. The two ends of the pressure stabilizing spring are respectively fixed to the swing arm and the lock tongue support plate to achieve self-locking of the lock tongue mechanism. The motor is fixed in the main rear shell, and the motor is fitted with the motor main gear. The motor main gear meshes with the motor driven gear, and the motor driven gear cooperates with the swing arm. The swing arm connects to the lock tongue assembly to realize the opening and closing of the lock.

[0008] The gear transmission mechanism includes gears, a driven gear, an outer gear pressure plate, an inner gear pressure plate, a key guide plate, a guide plate pressure plate, a snap ring, a main cable clamp, and a main clamp. The main clamp is U-shaped and clamps outside the door frame. The gear is U-shaped with an outer gear rack and an inner gear rack on its two sides. The gear slides vertically on both sides of the main clamp by being limited by the outer and inner gear pressure plates. The driven gear meshes with the inner gear rack of the gear. The key guide plate is fixed to the driven gear by the guide plate pressure plate, the snap ring, and the inner gear pressure plate, and moves synchronously with the driven gear. The main cable clamp is fixed to the outer and inner gear pressure plates.

[0009] The main gear meshes with the external rack of the connecting gear; during operation, the main gear drives the transmission slave gear and key guide plate to rotate through the connecting gear. The key guide plate is connected to the lock cylinder shaft, and the lock cylinder shaft cooperates with the swing arm. The swing arm moves the lock tongue assembly to realize the opening and closing of the lock.

[0010] In an improvement to the latch movement mechanism of the aforementioned frame door lock, the knob is installed in the main rear housing shaft hole and is fixedly connected to the swing arm with screws; the lock cylinder shaft has two protrusions that fit tightly with the square hole of the swing arm.

[0011] In the improved version of the latch movement mechanism of the above-mentioned frame door lock, the latch assembly is riveted with two shafts, and the latch base plate is provided with an elongated hole and fixed to the main rear shell by screws. The two riveted shafts allow the latch assembly to slide smoothly in the elongated hole of the latch base plate.

[0012] In an improvement to the latch movement mechanism of the aforementioned frame door lock, a bushing is riveted to the swing arm and to the latch support plate; the two ends of the stabilizing spring are respectively fixed to the bushings of the swing arm and the latch support plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: Because the main front assembly and the main rear assembly are connected into a single unit capable of opening and closing via a gear transmission mechanism, instead of drilling holes in the door frame to connect the main front and rear assemblies, the main clamping plate of the gear transmission mechanism is U-shaped and clamps outside the door frame. When the main front assembly is unlocked via the lock cylinder or fingerprint module, the gear transmission mechanism can be used to drive the bolt assembly in the main rear assembly to unlock. Alternatively, rotating the knob of the main rear assembly can drive the swing arm, which in turn drives the bolt mechanism to open and close the door from the inside. This solves the problem of installing smart locks on doors where drilling is not suitable, allowing users to enjoy convenience while reducing damage to the door caused by drilling.

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: Attached Figure Description

[0015] Figure 1 This is a perspective view of the frame door lock provided in an embodiment of this utility model;

[0016] Figure 2 This is an exploded view of the frame door lock provided in this embodiment of the utility model;

[0017] Figure 3 This is a perspective view of the gear transmission mechanism provided in the embodiment of this utility model;

[0018] Figure 4This is a schematic diagram of the key unlocking principle of the frame door lock provided in this embodiment of the utility model;

[0019] Figure 5 This is a schematic diagram of the motor-driven unlocking principle of the frame door lock provided in this embodiment of the utility model;

[0020] Figure 6 This is a schematic diagram of the knob unlocking principle of the frame door lock provided in this embodiment of the utility model;

[0021] Figure 7 This is an exploded view from another angle of the frame door lock provided in this embodiment of the utility model;

[0022] Figure 8 This is an exploded view from another angle of the frame door lock provided in this embodiment of the utility model;

[0023] Figure 9 This is an exploded view from another angle of the frame door lock provided in this embodiment of the utility model.

[0024] Explanation of reference numerals in the attached drawings: Main front body assembly 10, main rear body assembly 20, gear transmission mechanism 40; lock cylinder 11, main gear 12, main front shell 13, fingerprint module 14, main board 15; main rear shell 21, motor 22, motor main gear 23, motor driven gear 24, knob 25, swing arm 26, lock cylinder shaft 27, lock tongue assembly 28, lock tongue base plate 29, lock tongue support pressure plate 30, pressure stabilizing spring 31, main rear plate 32; gear 41, outer gear rack 411, inner gear rack 412, transmission driven gear 42, outer gear pressure plate 43, inner gear pressure plate 44, key guide plate 45, guide plate pressure plate 46, M8 open snap ring 47, main cable clamp 48, main clamp plate 49. Detailed Implementation

[0025] This utility model relates to a latch movement mechanism for a frame door lock, such as... Figures 1 to 9 As shown, it includes a main front body assembly 10, a main rear body assembly 20, and a gear transmission mechanism 40, wherein:

[0026] The main front assembly 10 includes a lock cylinder 11, a main gear 12, a main front shell 13, a fingerprint module 14, and a main board 15. The structure and principle of the main front assembly 10 are basically the same as those of common smart glass door locks at present, and will not be described in detail here.

[0027] The main rear assembly 20 includes a main rear shell 21, a motor 22, a motor main gear 23, a motor driven gear 24, a knob 25, a swing arm 26, a lock cylinder shaft 27, a lock tongue assembly 28, a lock tongue base plate 29, a lock tongue support pressure plate 30, a pressure stabilizing spring 31, and a main rear plate 32. The two ends of the pressure stabilizing spring 31 are respectively fixed to the swing arm 26 and the lock tongue support pressure plate 30 to realize the self-locking of the lock tongue mechanism 28. The motor 22 is fixed in the main rear shell 21, and the motor 22 is fitted with the motor main gear 23. The motor main gear 23 meshes with the motor driven gear 24. The motor driven gear 24 cooperates with the swing arm 26. The swing arm 26 is connected to the lock tongue assembly 28 to realize the opening and closing of the lock.

[0028] The gear transmission mechanism 40 includes a gear 41, a driven gear 42, an outer gear pressure plate 43, an inner gear pressure plate 44, a key guide plate 45, a guide plate pressure plate 46, a snap ring 47, a main cable clamping plate 48, and a main clamping plate 49. The main clamping plate 49 is U-shaped and clamps the outside of the door frame. The gear 41 is U-shaped, with an outer gear rack 411 and an inner gear rack 412 on its two sides. The gear 41 is driven by the outer gear pressure plate. Plate 43 and inner toothed pressure plate 44 are limited on both sides of main clamping plate 49 to achieve vertical sliding; the transmission driven gear 42 meshes with the inner toothed rack 412 of the connected gear; the key guide plate 45 is fixed to the transmission driven gear 42 through guide plate pressure plate 46, M8 open snap ring 47 and inner toothed pressure plate 44, and moves synchronously with the transmission driven gear 42; the main cable clamping plate 48 is fixed on outer toothed pressure plate 43 and inner toothed pressure plate 44;

[0029] The main gear 12 meshes with the outer rack 411 of the connecting gear 41; during operation, the main gear 12 drives the transmission driven gear 42 and the key guide plate 45 to rotate through the connecting gear 41. The key guide plate 45 is connected to the lock cylinder shaft 27. The lock cylinder shaft 27 cooperates with the swing arm 26. The swing arm 26 moves the lock tongue assembly 28 to realize the opening and closing of the lock.

[0030] In this embodiment, the knob 25 is installed in the main rear housing shaft hole and is fixedly connected to the swing arm 26 with screws. The lock core shaft 27 has two protrusions that fit tightly with the square hole of the swing arm 26.

[0031] In this embodiment, the latch assembly 28 is riveted to two shafts, and the latch base plate 29 is provided with an elongated hole and is fixed to the main rear shell 21 by screws. The two riveted shafts allow the latch assembly 28 to slide smoothly in the elongated hole of the latch base plate 29.

[0032] In this embodiment, the swing arm 26 is riveted with a bushing, and the latch bracket pressure plate 30 is riveted with a bushing; the two ends of the stabilizing spring 31 are respectively fixed on the bushing of the swing arm 26 and the bushing of the latch bracket pressure plate 30.

[0033] The working principle of this utility model: This door lock can be opened in three ways:

[0034] The first type allows a person to open and close the door by turning knob 25 when standing indoors. Knob 25 drives swing arm 26, which in turn drives locking tongue mechanism 28.

[0035] The second type allows a person to open and close the lock when standing outdoors by verifying their fingerprint, password, or card as an electronic key. When the user information is correct, the PCB board drives the motor 22, which is fitted with a main motor gear 23. The motor drives the main motor gear 23, which meshes with the driven motor gear 24. The driven motor gear 24 works with the swing arm 26, which moves the latch assembly 28 in and out.

[0036] The third method is to use a mechanical key to unlock the lock when the electronic key fails and cannot be used to open or close the lock. The principle is that the unlocking cylinder 11 drives the main gear 12 of the lock cylinder to move. The main gear 12 of the lock cylinder meshes with the connecting gear 41. The connecting gear 41 meshes with the driven gear 42 and the key guide plate 45. The key guide plate 45 is connected to the lock cylinder shaft 27. The lock cylinder shaft 27 cooperates with the swing arm 26. The swing arm 26 moves the bolt assembly 28 in and out.

[0037] The clamping size of the main clamping plate 49 is determined according to the thickness of the door frame, while the clamping sizes of the connecting teeth 41 and the main cable clamping plate 48 are adjusted accordingly based on the clamping size of the main clamping plate 49. Here is a commonly used door frame lock size, for example, if the edge thickness of the door frame is 40mm, the clamping size of the main clamping plate 49 can be slightly wider than 40mm.

[0038] In the description of this utility model, it should be understood that terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the product's usual installation orientation or the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A bolt movement mechanism for a framed door lock, characterized by: It comprises a main front body combination, a main rear body combination and a gear transmission mechanism, wherein: The main front body combination comprises a lock cylinder, a main gear, a main front shell, a fingerprint module and a main board. The main rear body combination comprises a main rear shell, a motor, a motor main gear, a motor slave gear, a knob, a swing arm, a lock cylinder shaft, a lock bolt assembly, a lock bolt bottom plate, a lock bolt support pressing plate, a pressure stabilizing spring and a main rear plate; the pressure stabilizing spring is fixed at both ends of the swing arm and the lock bolt support pressing plate to realize self-locking of the lock bolt mechanism; the motor is fixed in the main rear shell, the motor is sleeved with the motor main gear, the motor main gear is engaged with the motor slave gear, the motor slave gear is matched with the swing arm, and the swing arm is connected with the lock bolt assembly to realize opening and closing of the lock. The gear transmission mechanism comprises a gear, a transmission slave gear, an outer gear pressing plate, an inner gear pressing plate, a key guide piece, a guide piece pressing plate, a spring, a main wire clamp plate and a main clamp plate; the main clamp plate is in a U shape and is clamped outside the frame of the door; the gear is in a U shape and is provided with an outer gear strip and an inner gear strip on both sides thereof; the gear is limited on both sides of the main clamp plate to realize vertical sliding through the outer gear pressing plate and the inner gear pressing plate; the transmission slave gear is engaged with the inner gear strip of the gear; the key guide piece is fixed on the transmission slave gear through the guide piece pressing plate, the spring and the inner gear pressing plate and moves synchronously with the transmission slave gear; and the main wire clamp plate is fixed on the outer gear pressing plate and the inner gear pressing plate. The main gear is engaged with the outer gear strip of the gear; in operation, the main gear drives the transmission slave gear and the key guide piece to rotate through the gear, the key guide piece is connected with the lock cylinder shaft, the lock cylinder shaft is matched with the swing arm, and the swing arm drives the lock bolt assembly to realize opening and closing of the lock.

2. A stile movement mechanism for a door lock of a package frame according to claim 1, characterized in that: The knob is installed in the shaft hole of the main rear shell and is fixedly connected with the swing arm by a screw; the lock cylinder shaft is tightly matched with the square hole of the swing arm through two protrusions.

3. A stile movement mechanism for a door lock of a package frame according to claim 1, characterized in that: The lock bolt assembly is riveted with two shafts, the lock bolt bottom plate is provided with a long waist hole and is fixed on the main rear shell by a screw, and the lock bolt assembly can smoothly slide in the long waist hole of the lock bolt bottom plate through the two riveted shafts.

4. A stile movement mechanism for a door lock of a package frame according to claim 1, characterized in that: A shaft sleeve is riveted on the swing arm and a shaft sleeve is riveted on the lock bolt support pressing plate; the pressure stabilizing spring is fixed at both ends of the shaft sleeves of the swing arm and the lock bolt support pressing plate.

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