A door lock opening structure

Abstract

The utility model discloses a kind of unlocking structure of door lock, including door lock panel and knob assembly, the knob assembly includes the knob seat fixed on door lock panel and the unlocking knob rotationally arranged on knob seat, the locking spring being provided on the knob seat, the lower end portion of the locking spring and knob seat abut, and its upper end portion and the lower end surface of unlocking knob abut;The lower end portion of the unlocking knob is connected with the linkage shaft connected with lock cylinder, the outer lateral wall of this linkage shaft is provided with limit lug, the door lock panel is provided with the limit slot compatible with limit lug, the locking spring drives limit lug and limit slot cooperation, linkage shaft is locked on door lock panel;So that people cannot be unlocked by rotating unlocking knob and driving lock cylinder;Prevent children in door from misopening door lock, eliminate security risk;Use unlocking knob to replace door handle, so that door lock structure is more simple and generous, so that door lock appearance is more beautiful.

Description

Technical Field

[0001] This utility model relates to the field of door lock technology, and more specifically, to a door lock unlocking structure. Background Technology

[0002] Door locks are installed on doors. They lock and unlock the door by extending or retracting the bolt, which engages with or disengages from the latch on the door frame. Most existing door locks are opened by using a door handle. By pressing down and turning the door handle, the transmission mechanism inside the lock body is activated, causing the bolt inside the door frame to retract into the lock body, thereby unlocking the door.

[0003] The existing door locks, which use door handles as an unlocking method, are prone to being accidentally opened by children inside the room, posing a safety hazard. At the same time, the door handles protrude from the door lock, making the door lock look unsightly. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an unlocking structure for a door lock.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An unlocking structure for a door lock includes a door lock panel and a knob assembly. The knob assembly includes a knob seat fixed to the door lock panel and an unlocking knob rotatably disposed on the knob seat. A locking spring is disposed on the knob seat, the lower end of which abuts against the knob seat, and the upper end of which abuts against the lower end face of the unlocking knob.

[0007] The lower end of the unlocking knob is connected to a linkage shaft that is connected to the lock cylinder. A limiting protrusion is provided on the outer wall of the linkage shaft. A limiting groove that matches the limiting protrusion is provided on the door lock panel. The locking spring drives the limiting protrusion to cooperate with the limiting groove to lock the linkage shaft on the door lock panel.

[0008] Pressing the unlocking knob downwards causes the linkage shaft to move downwards, compressing the locking spring and separating the limiting protrusion from the limiting groove, thus releasing the lock on the unlocking knob.

[0009] The present invention further provides that: the number of limiting protrusions on the linkage shaft is two, wherein the two limiting protrusions are spaced apart on the outer wall of the linkage shaft.

[0010] The present invention further includes: a motor base is fixedly installed inside the door lock panel, wherein two limiting grooves are provided on the motor base.

[0011] The present invention further includes a lower end of the linkage shaft having a insertion groove, wherein one end of the square bar is inserted into the insertion groove and the other end is connected to the lock cylinder.

[0012] The present invention further includes: an anti-slip protrusion is provided on the outer side wall of the unlocking knob.

[0013] The present invention further includes a mounting groove at the upper end of the knob seat for mounting a locking spring.

[0014] The beneficial effects of this utility model are as follows: This door lock unlocking structure is used for unlocking from inside the door. An unlocking knob is rotatably mounted on the knob seat of the door lock panel. The lower end of the unlocking knob is connected to a linkage shaft that is connected to the lock cylinder. A limiting protrusion is provided on the outer wall of the linkage shaft. A limiting groove that matches the limiting protrusion is provided on the door lock panel. The locking spring drives the limiting protrusion to cooperate with the limiting groove, locking the linkage shaft on the door lock panel, so that people cannot unlock the door by rotating the unlocking knob to drive the lock cylinder; it prevents children from accidentally opening the door lock from inside the door, eliminating safety hazards; using an unlocking knob instead of a door handle makes the door lock structure simpler and more elegant, thus making the door lock more aesthetically pleasing.

[0015] When someone inside the door unlocks it, they need to press down on the unlocking knob. The unlocking knob drives the linkage shaft to move downwards, which in turn compresses the locking spring, causing the limiting protrusion to separate from the limiting groove and releasing the lock on the unlocking knob. Then, the unlocking knob can be rotated again to open the door. The operation is convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the unlocking structure of a door lock according to the present invention;

[0017] Figure 2 This is an application diagram of the unlocking structure of a door lock according to the present invention;

[0018] Figure 3 This utility model provides a diagram showing the installation of a knob assembly on a door lock panel to define the unlocking structure of a door lock.

[0019] Figure 4 This is a diagram showing the fit between the knob assembly and the mounting base of the unlocking structure of a door lock according to this utility model.

[0020] Figure 5 This is a diagram showing the fit between the knob assembly and the linkage shaft in the unlocking structure of a door lock according to this utility model.

[0021] Figure 6 This is a schematic diagram of the lock housing of the door lock's unlocking structure according to the present invention;

[0022] Figure 7 This is a schematic diagram of the knob base of the unlocking structure of a door lock according to this utility model;

[0023] Figure 8This is a schematic diagram of the linkage shaft of the unlocking structure of a door lock according to the present invention;

[0024] Figure 9 This is a schematic diagram of the motor base of the unlocking structure of a door lock according to the present invention;

[0025] Explanation of reference numerals in the attached drawings: 1. Door lock panel; 2. Knob assembly; 21. Knob base; 211. Mounting groove; 22. Unlocking knob; 221. Anti-slip protrusion; 23. Locking spring; 3. Link shaft; 31. Limiting protrusion; 32. Insertion groove; 4. Lock cylinder; 5. Motor base; 51. Limiting groove; 52. Through hole; 6. Square strip. Detailed Implementation

[0026] See attached document Figures 1 to 9 The unlocking structure of a door lock according to this utility model will be described in further detail.

[0027] An unlocking structure for a door lock includes a door lock panel 1 and a knob assembly 2. The knob assembly 2 includes a knob base 21 fixed on the door lock panel 1 and an unlocking knob 22 rotatably disposed on the knob base 21. A locking spring 23 is disposed on the knob base 21. The lower end of the locking spring 23 abuts against the knob base 21, and its upper end abuts against the lower end face of the unlocking knob 22.

[0028] This door lock unlocking structure is used for unlocking from inside the door. An unlocking knob 22 is rotatably mounted on a knob base 21 of the door lock panel 1. The lower end of the unlocking knob 22 is connected to a linkage shaft 3 connected to the lock cylinder 4. The lower end of the linkage shaft 3 has a insertion groove 32, where one end of a square bar 6 is inserted, and the other end is connected to the lock cylinder 4. A limiting protrusion 31 is provided on the outer wall of the linkage shaft 3. A limiting groove 51 is provided on the door lock panel 1 to match the limiting protrusion 31. The locking spring 23 drives the limiting protrusion 31 to engage with the limiting groove 51, locking the linkage shaft 3 onto the door lock panel 1. This prevents people from unlocking the door by rotating the unlocking knob 22, thus preventing children from accidentally opening the door and eliminating safety hazards. Using the unlocking knob 22 instead of a door handle makes the door lock structure simpler and more elegant, resulting in a more aesthetically pleasing appearance.

[0029] When a person inside the door unlocks the door, they need to press down on the unlocking knob 22. The unlocking knob 22 drives the linkage shaft 3 to move downward, and the unlocking knob 22 compresses the locking spring 23 downward, causing the limiting protrusion 31 to separate from the limiting groove 51, thus releasing the lock of the unlocking knob 22. Then, the unlocking knob 22 can be rotated again, driving the lock cylinder 4 to rotate, which drives the bolt on the lock body to retract into the lock body, so as to open the door lock. The operation is convenient.

[0030] After the unlocking knob 22 is released, the locking spring 33 drives the unlocking knob 22 to move the linkage shaft 3 upward, so that the limiting protrusion 31 is inserted into the limiting groove 51, and the unlocking knob 22 is locked again.

[0031] The linkage shaft 3 has two limiting protrusions, which are spaced apart on the outer wall of the linkage shaft 3. The two limiting protrusions cooperate with the corresponding limiting grooves 51 to stably lock the linkage shaft 3 in the deadbolt position. A motor base 5 is fixedly installed inside the door lock panel 1, and two limiting grooves 51 are provided on the motor base 5. The motor base 5 is provided with a through hole 52 for the linkage shaft 3 to pass through, and the limiting grooves 51 are provided on the inner wall of the through hole 52.

[0032] The outer side wall of the unlocking knob 22 is provided with anti-slip protrusions 221 to increase the friction between the user's fingers and the unlocking knob 22 and prevent slippage when unlocking.

[0033] The knob seat 21 has an upper end with a mounting groove 211 for mounting a locking spring 23. The locking spring 23 is installed in the mounting groove 211, with its lower end abutting against the bottom wall of the mounting groove 211 and its upper end abutting against the lower end face of the unlocking knob 22. This allows the locking spring 23 to be stably placed on the knob seat 21, improving the stability of the door lock structure.

[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected by this utility model. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A door lock unlocking structure, characterized in that: The device includes a door lock panel and a knob assembly. The knob assembly includes a knob base fixed to the door lock panel and an unlocking knob rotatably mounted on the knob base. A locking spring is provided on the knob base. The lower end of the locking spring abuts against the knob base, and its upper end abuts against the lower end face of the unlocking knob. The lower end of the unlocking knob is connected to a linkage shaft that is connected to the lock cylinder. A limiting protrusion is provided on the outer wall of the linkage shaft. A limiting groove that matches the limiting protrusion is provided on the door lock panel. The locking spring drives the limiting protrusion to cooperate with the limiting groove to lock the linkage shaft on the door lock panel. Pressing the unlocking knob downwards causes the linkage shaft to move downwards, compressing the locking spring and separating the limiting protrusion from the limiting groove, thus releasing the lock on the unlocking knob.

2. The unlocking structure of a door lock according to claim 1, characterized in that: The linkage shaft has two limiting protrusions, which are spaced apart on the outer wall of the linkage shaft.

3. The unlocking structure of a door lock according to claim 2, characterized in that: A motor mount is fixedly installed inside the door lock panel, and two limiting slots are provided on the motor mount.

4. The unlocking structure of a door lock according to claim 1, 2, or 3, characterized in that: The lower end of the linkage shaft is provided with a plug groove, wherein one end of the square bar is inserted into the plug groove and the other end is connected to the lock cylinder.

5. The unlocking structure of a door lock according to claim 1, 2, or 3, characterized in that: The outer wall of the unlocking knob is provided with anti-slip ridges.

6. The unlocking structure of a door lock according to claim 1, 2, or 3, characterized in that: The upper end of the knob base is provided with a mounting groove for installing a locking spring.

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