Counter locking knob limiting device
By designing the anti-lock knob limiting device, the coordination of the limiting part and the limit elastic part is used to solve the problems of the complex structure of the existing anti-lock knob, resulting in inadequate rotation and poor feel, and the anti-locking function is realized in place and good feel.
Patent Information
- Application Number
- CN202421823975.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The existing anti-lock knob has a complex structure, which may lead to problems such as inadequate rotation and poor hand feel.
An anti-lock knob limiting device is designed, including an anti-lock knob, an anti-lock switch, a limiting member, a limiting elastic member and an upper mounting member. Through the coordination of the limiting member and the limiting elastic member, it ensures rotation in place and improves the feel.
It realizes the anti-locking function of rotating in place and good hand feel, the structure is simple, the limit elastic parts have a long life, easy installation, and no easy lag.
Smart Images
Figure CN222847962U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a reverse locking knob limiting device. Background Art
[0002] A lock is a device used to reliably lock a door in a closed state. At present, locks on the market are generally provided with an anti-locking mechanism. When in use, the anti-locking knob connected to the anti-locking mechanism is rotated inside the door to anti-lock the lock. In this way, even if a person outside the door holds a key, the door cannot be opened. Although this increases security, the existing anti-locking mechanism has a complex structure and may cause problems such as incomplete rotation and poor feel. Utility Model Content
[0003] The utility model aims to solve the shortcomings in the prior art and proposes a locking knob limiting device.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a kind of anti-lock knob limit device, including an anti-lock knob, an anti-lock switch, a limit piece, a limit elastic piece and an upper mounting piece, the limit piece is composed of a square base and an elliptical top, the upper end of the limit elastic piece is a fixed part, and the lower end of the limit elastic piece is an opening part; the back of the anti-lock knob is connected to the limit piece, and an upper mounting piece is provided above the limit piece, and a groove is provided in the upper mounting piece, the upper end of the limit elastic piece is installed in the groove, and the lower end of the limit elastic piece passes through the groove wall and is arranged on the outside of the square base of the limit piece, and the outside of the elliptical top is provided with an anti-lock switch which triggers the anti-lock when the long axis of the ellipse corresponds.
[0005] Furthermore, the corners of the square base are rounded.
[0006] Furthermore, it also includes a lower pad, which is arranged below the limiting member, and the end of the opening of the limiting elastic member is placed on the lower pad, and the limiting elastic member is supported by the lower pad.
[0007] Furthermore, the anti-lock knob, the anti-lock switch, the limit member, the limit elastic member and the upper mounting member are arranged on the panel of the smart door lock.
[0008] Furthermore, a screw hole is provided in the center of the groove of the upper mounting piece, the upper end of the limiting elastic piece is installed in the groove and sleeved outside the screw hole, and the gasket is pressed on the upper end of the limiting elastic piece and fixed by the screw and the screw hole.
[0009] The beneficial effects of the utility model are: the limiting piece and the limiting elastic piece are rotated into place through cooperation, the hand feeling is good, the reverse locking can be performed accurately, the structure is simple, the limiting elastic piece has a long service life, the installation is convenient, it is not easy to get stuck, and the limiting piece and the limiting elastic piece are not easy to separate. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1It is a schematic diagram of the anti-lock closing structure of the utility model.
[0011] Figure 2 This is a schematic diagram of the anti-lock opening structure of the utility model Figure 2 .
[0012] Figure 3 The utility model is a schematic diagram of the structure of a limiting member and an upper mounting member.
[0013] Figure 4 It is a schematic diagram of the structure of the limiting elastic member.
[0014] Figure 5 This is a schematic diagram of the limiter structure Figure 1 .
[0015] Figure 6 This is a schematic diagram of the limiter structure Figure 2 . DETAILED DESCRIPTION
[0016] The following will be combined with the attached embodiment of the utility model Figure 1-6 , the technical solutions in the embodiments of the utility model are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.
[0017] Example 1 Reference Figure 1-6 A reverse locking knob limit device comprises a reverse locking knob 1, a reverse locking switch 2, a limit piece 3, a limit elastic piece 4 and an upper mounting piece 5, wherein the limit piece is composed of a square base 31 and an elliptical top 32, the upper end of the limit elastic piece is a fixing portion 41, and the lower end of the limit elastic piece is an opening portion 42; the reverse locking knob 1 is connected to the limit piece 3 on the back, an upper mounting piece 5 is provided above the limit piece, a groove 51 is provided in the upper mounting piece, the upper end of the limit elastic piece is installed in the groove, the lower end of the limit elastic piece passes through the groove wall and is arranged on the outer side of the square base of the limit piece, and the outer side of the elliptical top is provided with an anti-lock switch 2 which triggers reverse locking when the elliptical major axis corresponds.
[0018] A locking knob limit device has rounded corners on its square base.
[0019] A locking knob limit device also includes a lower pad 6, which is arranged below the limiter. The end of the opening of the limiter elastic member is placed on the lower pad, and the limiter elastic member is supported by the lower pad.
[0020] A reverse locking knob limiting device, a lower pad, a reverse locking knob, a reverse locking switch, a limiting member, a limiting elastic member and an upper mounting member are arranged on a panel 7 of a smart door lock.
[0021] A locking knob limit device is disclosed. A screw hole 52 is provided in the center of a groove of an upper mounting member. The upper end of a limit elastic member is mounted in the groove and sleeved outside the screw hole. A gasket is pressed on the upper end of the limit elastic member and fixed by screws and the screw hole.
[0022] A locking knob limit device, the thickness of both sides of the long axis of the elliptical top gradually decreases in an arc shape.
[0023] The utility model relates to a locking knob limiting device, wherein the limiting elastic piece is formed by folding an elastic metal wire.
[0024] Working principle: The anti-lock knob passes through the panel of the smart door lock and is connected to a limit piece on the other side of the panel. When the knob is turned to lock the door, the limit piece is driven to rotate, so that the square base of the limit piece rotates 90 degrees and is limited in the opening at the lower end of the limit elastic piece, so that the elliptical top of the limit piece corresponds to the anti-lock switch 2 and switches between the major axis and the minor axis to open and close the anti-lock switch.
[0025] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.
Claims
1. A locking knob limit device, comprising a locking knob, a locking switch, a limiter, a limiter elastic member and an upper mounting member, characterized in that: The limiting part is composed of a square base and an elliptical top, the upper end of the limiting elastic part is a fixed part, and the lower end of the limiting elastic part is an opening part; the back of the anti-locking knob is connected to the limiting part, and an upper mounting part is provided above the limiting part, and a groove is provided in the upper mounting part. The upper end of the limiting elastic part is installed in the groove, and the lower end of the limiting elastic part passes through the groove wall and is arranged on the outside of the square base of the limiting part. An anti-locking switch is provided on the outside of the elliptical top, which triggers the anti-locking when the long axis of the ellipse corresponds.
2. The anti-lock knob limiting device according to claim 1, characterized in that: The square base has rounded corners.
3. The anti-lock knob limiting device according to claim 1, characterized in that: It also includes a lower pad, which is arranged below the limiting member. The end of the opening of the limiting elastic member is placed on the lower pad, and the limiting elastic member is supported by the lower pad.
4. The anti-lock knob limiting device according to claim 1, characterized in that: The anti-lock knob, the anti-lock switch, the limit piece, the limit elastic piece and the upper mounting piece are arranged on the panel of the smart door lock.
5. The anti-lock knob limiting device according to claim 1, characterized in that: A screw hole is arranged in the center of the groove of the upper mounting piece, the upper end of the limiting elastic piece is installed in the groove and sleeved outside the screw hole, and the gasket is pressed on the upper end of the limiting elastic piece and fixed by the screw and the screw hole.