A door handle concealing a key
By using a one-piece molded shell and mounting bracket design, combined with threaded fastening and key mounting slots, the problems of long production time and complicated installation of existing handles are solved, and the production of concealed key door handles is simplified and the installation is secure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YONGJIA OUBEI BOQIANG LOCKS CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-06-05
AI Technical Summary
The existing handles with built-in keys have long production cycles, complicated installation, and many parts. Furthermore, the magnetic fixing method makes batch problems unrepairable.
It adopts a one-piece molded shell and mounting bracket, which are connected by threaded fastening. It is equipped with a special key mounting groove and snap groove structure, and the sleeve column and ring column are used to enhance the tightness of the connection.
This invention achieves a simple and easy-to-install concealed key door handle, improving production efficiency and stability while reducing the number of parts and installation complexity.
Smart Images

Figure CN224326108U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a handle, and more particularly to a door handle that conceals a key. Background Technology
[0002] Handles are devices installed on doors and windows, serving both opening and closing functions, and securing them in place. They are commonly made of materials such as aluminum alloy, copper, stainless steel, plexiglass, and plastic. They come in various forms and sizes. Besides meeting the requirements of comfortable handling and reasonable force distribution, they also have a decorative effect; therefore, the materials and shapes are selected from ready-made products or custom-designed based on architectural design requirements. Existing key-embedded handles generally use magnets to hold the key, requiring pre-installation of magnets during production and imposing specific restrictions on the type of key material. Pre-installing magnets requires glue for fixation, and processing can only continue after a day of complete drying, significantly extending the production time. Furthermore, if a product batch problem is discovered, the magnets are firmly attached to the handle, making correction and repair impossible. Traditional products also have many parts and complex internal installation, especially the base plate components. There is a lack of a simple, easy-to-manufacture, and reliable concealed key door handle. Utility Model Content
[0003] In view of the shortcomings of existing technology, this utility model provides a door handle with a hidden key.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a door handle with a concealed key, comprising at least an integrally formed housing, a mounting bracket, and a cover, wherein a hollow cavity is formed between the housing and the cover, the mounting bracket is fitted within the cavity and is fastened by threads, the mounting bracket is provided with a mounting groove for key clipping, the mounting groove is provided with a key handle portion and a key head corresponding to the key, the end of the key head away from the key handle portion is narrower than the starting end, and the key head has a [missing information - likely a design feature or design element] at the bottom of the groove. The key head has a first latching groove that extends to the adjacent groove wall. The key head also has a first latching plate protruding at the outer edge of the groove opening, corresponding to the position of the first latching groove. The key handle has a second latching groove on each of the opposite groove walls. The second latching groove extends to the bottom of the groove. The key handle has a second latching plate protruding at the outer edge of the groove opening, corresponding to the position of the second latching groove. The key handle also has a movable groove on the groove wall adjacent to the second latching groove. One end of the movable groove extends toward the bottom of the key handle groove, and the other end of the movable groove extends toward the outer edge of the key handle groove opening.
[0005] The spoon head has a limiting step in the middle section of the groove wall in the length direction.
[0006] The second clasp has at least four corresponding to the four corners of the key handle.
[0007] The key handle is also provided with a positioning groove on its groove wall.
[0008] The positioning groove and the first fastening groove at least partially overlap.
[0009] The first buckle plate has rounded edges and corners.
[0010] The second buckle plate has a chamfer at the end facing away from the groove wall of the key handle.
[0011] The housing is provided with a connecting part with a corresponding lock hole and a connected gripping part. The housing is provided with a sleeve post, and the mounting bracket is provided with a sleeve hole for the sleeve post to be installed in a limiting position.
[0012] The connecting part has a raised rib hole, and the mounting bracket has a ring post that fits through the rib hole.
[0013] The sleeve columns and ring columns are arranged linearly and uniformly, and the line connecting the sleeve columns is perpendicular to the line connecting the ring columns.
[0014] The beneficial effects of this utility model are as follows: The door handle with a hidden key provided by this utility model integrates the main components into one unit, optimizes the structure and facilitates assembly. At the same time, it sets up a dedicated key installation area, which, together with the snap-fit and positioning structure, assists in the installation and fixation of the key, and makes the operation more convenient, thus meeting the actual needs of production and users. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the combined structure of this utility model;
[0016] Figure 2 This is an exploded structural diagram of the present invention;
[0017] Figure 3 This is a schematic diagram of the mounting bracket structure of this utility model. Detailed Implementation
[0018] like Figures 1-3As shown, a door handle with a concealed key includes at least one integrally formed housing 1, mounting bracket 2, and cover 3. A hollow cavity is formed between the housing 1 and the cover 3. The mounting bracket 2 is fitted within the cavity and is fastened by threads. In this embodiment, the connection can be made directly using connecting holes and screws; this is merely an illustrative description and not the only limitation. The mounting bracket 2 has a mounting groove 4 for key mounting. The mounting groove 4 has a key handle portion 5 and a key head 6 corresponding to the key. The end of the key head 6 away from the key handle portion 5 is narrower than the starting end, corresponding to the size and shape of common keys. The key head 6 has a pair of first latching grooves 7 at the bottom of the groove, and the first latching grooves 7 extend to the adjacent groove wall. The key head 6 also has a first latching plate 8 protruding from the outer edge of the groove corresponding to the position of the first latching groove 7. The design of the first latching groove 7 allows for the tilted insertion of the key, thus extending to the adjacent surface and providing ample space for movement. The first buckle plate 8 restricts the key end from directly disengaging from the key head 6 position. It should be noted that it is mainly fixed at the key handle 5 position.
[0019] The key handle portion 5 has a second latching groove 9 on each of its opposite groove walls, extending to the bottom of the groove. The key handle portion 5 also has a second latching plate 10 protruding from the outer edge of the groove opening, corresponding to the position of the second latching groove 9. The key handle portion 5 also has a movable groove 11 on the groove wall adjacent to the second latching groove 9. One end of the movable groove 11 extends towards the bottom of the groove in the key handle portion 5, and the other end extends towards the outer edge of the groove opening in the key handle portion 5. The second latching groove 9 and the second latching plate 10 are the main parts for fixing and limiting the key, effectively preventing the key from falling out. The movable groove 11 is designed for easy access to the key. The fastening mechanism at the key handle portion 5 is similar to that at the key head 6, mainly differing in its placement and local structure. The similarities will not be elaborated upon or limited here.
[0020] The key head 6 has a limiting step in the middle section of the groove wall along its length, which is suitable for the basic matching of conventional keys and can also prevent excessive deviation of special keys. The second latch 9 has at least four corresponding to the four corners of the key handle 5. Since the key handle is usually rectangular, the corresponding corners are provided to further improve the stability of the installation. The groove wall of the key handle 5 also has a positioning groove 12, where anti-slip pads or other materials can be added to enhance the usability. The positioning groove 12 at least partially overlaps with the first latch 7. The first latch plate 8 has rounded corners 19. Due to the serrations on the edge of the key, the rounded corners 19 can reduce obstruction. The second latch plate 10 has a chamfer 20 at the end facing away from the groove wall of the key handle 5. The chamfer 20 facilitates picking up and putting down and also reduces damage to the second latch plate 10. The limiting effect of the second latch plate 10 is weakened, but it is compensated for by the number and position of the four corners to meet the needs of use.
[0021] The housing 1 has a connecting part 13 with a corresponding lock hole and a connected gripping part 14. A sleeve post 15 is provided inside the housing 1, and the mounting bracket 2 has a sleeve hole 16 for limiting the installation of the sleeve post 15. The connecting part 13 has a protruding rib hole 17, and the mounting bracket 2 has a ring post 18 that fits through the rib hole 17. The sleeve posts 15 and ring posts 18 are both arranged linearly and uniformly, and the line connecting the sleeve posts 15 is perpendicular to the line connecting the ring posts 18. Both are equivalent to a sleeve connection method, which strengthens the connection tightness and improves the structural strength. The misaligned and inverted arrangement compensates for each other, enhancing the usability.
[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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. At the same time, the basic principles, main features, and advantages of this utility model have been shown and described above, which should be understood by those skilled in the art.
Claims
1. A door handle with a concealed key, characterized in that, The device includes at least a one-piece molded housing, a mounting bracket, and a cover. A hollow cavity is formed between the housing and the cover. The mounting bracket is positioned and assembled within the cavity and is fastened by threads. The mounting bracket has a mounting groove for mounting a key. The mounting groove has a key handle and a key head corresponding to the key. The end of the key head away from the key handle is narrower than the starting end. The key head has a pair of first snap grooves at the bottom of the groove, and the first snap grooves extend to adjacent groove walls. The key head also has a first snap plate protruding at the outer edge of the groove corresponding to the position of the first snap groove. The key handle has a second snap groove on each of the opposite groove walls, and the second snap groove extends to the bottom of the groove. The key handle has a second snap plate protruding at the outer edge of the groove corresponding to the position of the second snap groove. The key handle also has a movable groove on the groove wall adjacent to the second snap groove. One end of the movable groove extends toward the bottom of the key handle groove, and the other end extends toward the outer edge of the key handle groove.
2. A door handle with a concealed key as described in claim 1, characterized in that, The spoon head has a limiting step in the middle section of the groove wall in the length direction.
3. A door handle with a concealed key as described in claim 1 or 2, characterized in that, The second clasp has at least four corresponding to the four corners of the key handle.
4. A door handle with a concealed key as described in claim 3, characterized in that, The key handle is also provided with a positioning groove on its groove wall.
5. A door handle with a concealed key as described in claim 4, characterized in that, The positioning groove and the first fastening groove at least partially overlap.
6. A door handle with a concealed key as described in claim 1, characterized in that, The first buckle plate has rounded edges and corners.
7. A door handle with a concealed key as described in claim 1, characterized in that, The second buckle plate has a chamfer at the end facing away from the groove wall of the key handle.
8. A door handle with a concealed key as described in claim 1, characterized in that, The housing is provided with a connecting part with a corresponding lock hole and a connected gripping part. The housing is provided with a sleeve post, and the mounting bracket is provided with a sleeve hole for the sleeve post to be installed in a limiting position.
9. A door handle with a concealed key as described in claim 8, characterized in that, The connecting part has a raised rib hole, and the mounting bracket has a ring post that fits through the rib hole.
10. A door handle with a concealed key as described in claim 8, characterized in that, The sleeve columns and ring columns are arranged linearly and uniformly, and the line connecting the sleeve columns is perpendicular to the line connecting the ring columns.