A door lock's anti-latching mechanism

Abstract

The utility model discloses a kind of reverse locking mechanism of door lock, it is related to lock technical field, for being installed in lock shell, including dial and locking plate, the dial is rotatably arranged in lock shell, the middle part of the locking plate is rotatably connected lock shell, first end is close to the dial, second end is close to main tongue lock;When counterclockwise rotates the dial, the dial rotates and promotes the first end of the locking plate to make the locking plate rotate, the second end of the locking plate moves to jam main tongue lock;The utility model adopts dial and locking plate two components to realize the reverse locking of main tongue lock, simple structure, small space occupation.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically a deadbolt mechanism for a door lock. Background Technology

[0002] A deadbolt mechanism is a door security device used to prevent unauthorized intrusion. It can lock the master bolt lock from the inside or outside, thereby achieving the function of theft prevention.

[0003] Most existing door lock deadbolt mechanisms are complex in structure, using multiple components to achieve linked action, occupying a large space, and their cost is also high due to the large number of components. Utility Model Content

[0004] This utility model discloses a deadbolt mechanism for a door lock to solve technical problems with complex structures.

[0005] To solve the above-mentioned technical problems, the present invention proposes the following optimized technical solution: A deadbolt mechanism for a door lock, for installation within a lock housing, includes a dial and a locking plate. The dial is rotatably disposed within the lock housing, and the locking plate is rotatably connected to the lock housing at its center, with a first end near the dial and a second end near the master bolt. When the dial is rotated counterclockwise, the dial rotates and pushes the first end of the locking plate to rotate, and the second end of the locking plate moves to lock the master tongue lock.

[0006] Furthermore, the lock housing is provided with a rotating groove, and one end of the dial is inserted into the rotating groove so that the dial is rotatably connected to the lock housing.

[0007] Furthermore, the dial is provided with a toggle groove, which is used for inserting the locking knob.

[0008] Furthermore, a push bar is provided on the side of the dial, and when the dial rotates counterclockwise, the push bar pushes the first end of the locking plate.

[0009] Furthermore, the locking plate is provided with a rotating shaft, which is fixedly connected to the lock housing. The locking plate has a rotating hole in the middle, which is fitted onto the rotating shaft so that the locking plate is rotatably connected to the lock housing.

[0010] Furthermore, the second end of the locking plate is provided with a locking strip, which abuts against the main tongue lock when the dial rotates counterclockwise to push the locking plate to rotate.

[0011] Furthermore, the present invention also includes a reset elastic element, which is used for resetting the locking plate.

[0012] Furthermore, the reset elastic element is a torsion spring, the lock housing is provided with a fixed plate, the locking plate is provided with an auxiliary plate, and the two ends of the torsion spring abut against the fixed plate and the auxiliary plate respectively.

[0013] The present invention has the following advantages over the prior art: The anti-locking mechanism provided by this utility model is equipped with a dial wheel and a locking plate. By rotating the dial wheel, the locking plate is pushed, and the second end of the locking plate is locked onto the main bolt lock, so that the main bolt lock cannot retract into the lock case, thereby achieving the anti-locking function. This utility model uses two components, the dial wheel and the locking plate, to realize the anti-locking of the main bolt lock. The structure is simple and occupies little space. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model installed inside the lock housing.

[0015] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 1 .

[0016] Figure 3 This is a schematic diagram of the structure of this utility model. Figure 2 .

[0017] In the diagram: 1. Dial wheel; 2. Locking plate; 3. Dial groove; 4. Push bar; 5. Rotating shaft; 6. Locking bar; 7. Reset elastic element; 8. Fixing plate; 9. Auxiliary plate; 10. Main tongue lock; 11. Locking groove. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] See Figure 1 Figure 3A deadbolt mechanism for a door lock, for installation within a lock housing, includes a dial 1 and a locking plate 2. The dial 1 is rotatably mounted within the lock housing. The locking plate 2 is rotatably connected to the lock housing at its center, with a first end near the dial 1 and a second end near the master bolt 10. When the dial 1 is rotated counterclockwise, it rotates and pushes the first end of the locking plate 2. Since the center of the locking plate 2 is rotatably connected to the lock housing, the locking plate 2 rotates with its center section in the middle. The second end of the locking plate 2 moves to engage the master bolt 10. Specifically, the second end of the locking plate 2 moves into the slot 11 of the master bolt 10, preventing the master bolt 10 from retracting into the lock housing, thus achieving the deadbolt function.

[0020] Additionally, the deadbolt mechanism of this application can be installed in a mechanical lock or a smart lock. When the deadbolt mechanism is installed in a mechanical lock, the dial 1 is used to connect to the deadbolt knob of the mechanical lock. When the deadbolt knob is manually turned, the deadbolt knob drives the dial 1 to rotate. When the dial 1 is installed in a smart lock, the dial 1 is used to connect to the motor of the smart lock, and the motor is used to drive the dial 1 to rotate.

[0021] Alternatively, the dial 1 can also be configured to be slidably connected to the lock housing, in which case the dial 1 has a lever extending out of the lock housing; in use, the lever is manually slid to make the dial 1 push the first end of the locking plate, the locking plate rotates around its middle, and the second end of the locking plate moves to lock the master tongue lock.

[0022] In this embodiment, the lock housing is provided with a rotating groove, and one end of the dial 1 is inserted into the rotating groove so that the dial 1 is rotatably connected to the lock housing. The diameter of the rotating groove is adapted to the dial 1 so that the dial 1 can be better inserted into the rotating groove.

[0023] In this embodiment, the dial 1 is provided with a dialing groove 3, which is inserted into the anti-lock knob or the motor output, and the dial 1 is driven to rotate by the anti-lock knob or the motor.

[0024] In this embodiment, the dial 1 is provided with a push bar 4 on its side. When the dial 1 rotates counterclockwise, the push bar 4 pushes the first end of the locking plate 2, and the push bar 4 plays the role of pushing one end of the locking plate 2.

[0025] In this embodiment, the locking plate 2 is provided with a rotating shaft 5, which is fixedly connected to the lock housing. The locking plate 2 has a rotating hole in the middle, which fits onto the rotating shaft 5, allowing the locking plate 2 to be rotatably connected to the lock housing. Specifically, the rotating hole of the locking plate 2 fits perfectly onto the rotating shaft 5, allowing the locking plate 2 to rotate without significant wobbling.

[0026] In this embodiment, the second end of the locking plate 2 is provided with a retaining strip 6. When the dial 1 rotates counterclockwise to push the locking plate 2 to rotate, the retaining strip 6 abuts against the main latch lock 10. Specifically, the locking plate 2 is arranged parallel to the main latch lock 10 and located below the main latch lock 10. The retaining strip 6 is provided on the upper surface of the locking plate 2. When the dial 1 is rotated counterclockwise to make the locking plate 2 rotate, the retaining strip 6 of the locking plate 2 moves into the retaining groove 11 of the main latch lock 10.

[0027] In this embodiment, the present invention further includes a reset elastic element 7, which is used to reset the locking plate 2. When the dial 1 rotates clockwise to release the locking plate 2 by its push bar 4, the locking plate 2 is reset under the action of the reset elastic element 7, causing the locking bar 6 at the second end of the locking plate 2 to disengage from the slot 11 of the main tongue lock 10.

[0028] The reset elastic element 7 can be either a torsion spring or a spring to achieve reset. When the reset elastic element 7 is a torsion spring, the lock housing is provided with a fixed plate 8, and the locking plate 2 is provided with an auxiliary plate 9. The two ends of the torsion spring abut against the fixed plate 8 and the auxiliary plate 9 respectively. When the push bar 4 pushes the locking plate 2, the torsion spring is subjected to torque. When the push bar 4 releases the locking plate 2, the torsion spring resets and causes the locking bar 6 to disengage from the slot 11 of the main tongue lock 10.

[0029] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A deadbolt mechanism for a door lock, for installation within a lock housing, characterized in that, It includes a dial and a locking plate. The dial is rotatably disposed inside the lock housing. The locking plate is rotatably connected to the lock housing at its center, with a first end near the dial and a second end near the master bolt. When the dial is rotated counterclockwise, the dial rotates and pushes the first end of the locking plate to rotate, and the second end of the locking plate moves to lock the master tongue lock.

2. The deadbolt mechanism of a door lock according to claim 1, characterized in that, The lock housing is provided with a rotating groove, and one end of the dial is inserted into the rotating groove so that the dial is rotatably connected to the lock housing.

3. The deadbolt mechanism of a door lock according to claim 1, characterized in that, The dial is provided with a toggle groove, which is used for inserting the locking knob.

4. The deadbolt mechanism of a door lock according to claim 1, characterized in that, The dial is provided with a push bar on its side. When the dial rotates counterclockwise, the push bar pushes the first end of the locking plate.

5. The deadbolt mechanism of a door lock according to claim 1, characterized in that, The locking plate is provided with a rotating shaft, which is fixedly connected to the lock housing. The locking plate has a rotating hole in the middle, which is fitted onto the rotating shaft so that the locking plate is rotatably connected to the lock housing.

6. The deadbolt mechanism of a door lock according to claim 1, characterized in that, The second end of the locking plate is provided with a locking bar. When the dial rotates counterclockwise to push the locking plate to rotate, the locking bar abuts against the main tongue lock.

7. The deadbolt mechanism of a door lock according to claim 1, characterized in that, It also includes a reset elastic element, which is used to reset the locking plate.

8. The deadbolt mechanism of a door lock according to claim 7, characterized in that, The reset elastic element is a torsion spring. The lock housing is provided with a fixed plate, and the locking plate is provided with an auxiliary plate. The two ends of the torsion spring abut against the fixed plate and the auxiliary plate, respectively.

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