A door lock knob
By setting multiple snap-fit grooves on the door lock knob shaft to create a snap-fit limiting structure, the problem of limited applicability of existing door lock knobs is solved, enabling compatibility and convenient installation of multiple door lock models.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN TAIZHENG HARDWARE CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-08-07
AI Technical Summary
The existing door lock knobs have a fixed structure, which means that multiple sizes of knobs need to be available for maintenance, resulting in low applicability.
A door lock knob was designed with multiple snap ring grooves on the knob shaft. It engages with the door lock assembly inside the panel through a snap-fit limiting structure, adapting to the installation of panels of different sizes.
It enables a single knob to be compatible with multiple door lock models, simplifying the maintenance process and improving applicability and ease of installation.
Smart Images

Figure CN224606206U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of knob technology, and in particular to a door lock knob. Background Technology
[0002] Existing door locks typically have a deadbolt function, usually implemented by installing a door lock knob on the back door panel. However, existing door lock knobs are generally of a fixed structure, meaning that one type of door lock knob can only be paired with a panel lock of the corresponding structure. Therefore, when making repairs, repairmen have to carry multiple sizes of door lock knobs, which is very inconvenient and has low applicability. Summary of the Invention
[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a door lock knob.
[0004] The technical solution adopted by this utility model to solve its technical problem is:
[0005] A door lock knob, comprising:
[0006] Knob cap;
[0007] The knob shaft extends from the knob cap and can extend into the panel;
[0008] A snap-fit limiting structure is provided on the knob shaft near the knob cap, including multiple snap-fit grooves on the knob shaft near the knob cap. The outer end of the knob shaft extends into the panel and engages with the door lock assembly inside the panel through the corresponding snap-fit grooves to be installed on the door lock.
[0009] As described above, in a door lock knob, a plurality of the spring clip grooves are arranged sequentially along the center line of the knob shaft towards the end away from the knob cap.
[0010] As described above, the locking and limiting structure of a door lock knob further includes an outer ring groove located at the outermost end of the outermost snap ring groove.
[0011] As described above, the door lock knob has three spring clip slots.
[0012] As described above, in a door lock knob, the knob cap is provided with an anti-air ring groove on one side of the knob shaft.
[0013] As described above, in a door lock knob, the height of the clearance groove is H, and the thickness of the knob cap is L, wherein the range of H is... L≤H≤ L.
[0014] As described above, in a door lock knob, the value of H is H = L.
[0015] As described above, the door lock knob also has anti-slip texture on the side wall of the knob cap.
[0016] As described above, in a door lock knob, the knob cap and the knob shaft are integrally formed.
[0017] The beneficial effects of this utility model are: the structure of this application is simple. Through the setting of the snap-fit limiting structure, multiple snap-fit grooves are opened near the knob cap on the knob shaft. The multiple snap-fit grooves can be set according to the snap-fit positions of the door lock components in the panel of different specifications. During installation, simply insert the outer end of the knob shaft into the panel and snap it into the snap-fit position of the door lock component in the panel through the corresponding snap-fit groove to install it on the door lock. It is practical and convenient, can be adapted to multiple models of door locks, and has wide applicability. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of a door lock knob according to an embodiment of the present utility model;
[0020] Figure 2 yes Figure 1 A cross-sectional view along the AA direction. Detailed Implementation
[0021] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.
[0022] Please see Figure 1 and Figure 2 As shown, this application embodiment provides a door lock knob, including:
[0023] Knob cap 1;
[0024] The knob shaft 2 extends from the knob cap 1 and can extend into the panel;
[0025] The snap-fit limiting structure 3 is provided on the knob shaft 2 near the knob cap 1, and includes a plurality of snap-fit grooves 30 opened on the knob shaft 2 near the knob cap 1. The outer end of the knob shaft 2 extends into the panel and engages with the door lock assembly in the panel through the corresponding snap-fit grooves 30 to be installed on the door lock.
[0026] By setting the snap-fit limiting structure 3, multiple snap-fit grooves 30 are opened near the knob cap 1 on the knob shaft 2. The multiple snap-fit grooves 30 can be set according to the snap-fit positions of the door lock components in the panel of different specifications. During installation, simply insert the outer end of the knob shaft 2 into the panel and snap it into the snap-fit position of the door lock component in the panel through the corresponding snap-fit groove 20 to install it on the door lock. It is practical and convenient, can be adapted to multiple models of door locks, and has wide applicability.
[0027] Furthermore, the plurality of the retaining ring grooves 30 are arranged sequentially along the center line of the knob shaft 2 toward the end away from the knob cap 1.
[0028] Specifically, the snap-fit limiting structure 3 also includes an outer ring groove 31 located at the outermost end of the outermost snap ring groove 30.
[0029] Multiple snap ring grooves 30 can be set according to the snap-fit positions of the panel door lock components of different specifications and the matching settings with the outer ring groove 31. During installation, simply insert the outer end of the knob shaft 2 into the panel and then snap it into the snap-fit position of the panel door lock component through the corresponding snap ring groove 30 to install it on the door lock. It is practical, convenient and widely applicable.
[0030] Specifically, in this embodiment, the number of snap ring grooves 30 is 3.
[0031] Furthermore, the knob cap 1 is provided with an anti-air ring groove 4 on one side of the knob shaft 2.
[0032] By setting the anti-cavitation groove 4, the amount of material used in the knob cap 1 is greatly reduced while ensuring the strength of the door lock knob and not affecting its normal use. This makes the door lock knob lighter and saves a lot of production costs, making it practical and convenient.
[0033] Specifically, the height of the clearance groove 4 is H, and the thickness of the knob cap 1 is L, wherein the range of H is... L≤H≤ L.
[0034] In this embodiment, preferably, the value of H is H = L.
[0035] Furthermore, the knob cap 1 is also provided with anti-slip mesh 5 on its side wall. This makes it convenient for people to touch and rotate, and is practical and easy to use.
[0036] Furthermore, the knob cap 1 and the knob shaft 2 are integrally formed, facilitating processing and production.
[0037] In summary, the embodiments of this application, through the setting of the snap-fit limiting structure 3, have multiple snap-fit grooves 30 opened near the knob cap 1 on the knob shaft 2. The multiple snap-fit grooves 30 can be set according to the snap-fit positions of the door lock components inside the panel of different specifications. During installation, simply insert the outer end of the knob shaft 2 into the panel and snap it into the snap-fit position of the door lock component inside the panel through the corresponding snap-fit groove 20 to install it on the door lock. It is practical and convenient, can be adapted to multiple models of door locks, and has wide applicability.
[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A door lock knob, characterized in that, include: knob cap (1); The knob shaft (2) extends onto the knob cap (1) and can extend into the panel; The snap-fit limiting structure (3) is provided on the knob shaft (2) near the knob cap (1) and includes a plurality of snap ring grooves (30) opened on the knob shaft (2) near the knob cap (1). The outer end of the knob shaft (2) extends into the panel and engages with the door lock assembly in the panel through the corresponding snap ring grooves (30) to be installed on the door lock.
2. A door lock knob according to claim 1, characterized in that: Multiple snap ring grooves (30) are arranged sequentially along the center line of the knob shaft (2) towards the end away from the knob cap (1).
3. A door lock knob according to claim 2, characterized in that: The snap-fit limiting structure (3) also includes an outer ring groove (31) located at the outer end of the outermost snap ring groove (30).
4. A door lock knob according to claim 1, characterized in that: The number of the snap ring slots (30) is 3.
5. A door lock knob according to claim 1, characterized in that: The knob cap (1) is located on one side of the knob shaft (2) and has an anti-air ring groove (4).
6. A door lock knob according to claim 5, characterized in that: The height of the clearance groove (4) is H, and the thickness of the knob cap (1) is L, wherein the range of H is... L≤H≤ L.
7. A door lock knob according to claim 6, characterized in that: The value of H is H = L.
8. A door lock knob according to claim 1, characterized in that: The knob cap (1) is also provided with anti-slip mesh (5) on its side wall.
9. A door lock knob according to claim 1, characterized in that: The knob cap (1) and the knob shaft (2) are integrated into one piece.