Key and key assembly
By introducing a rotatable partition limit design into the key assembly, the complex problems of mechanical key wear and maintenance are solved, and a simple disassembly and installation process is achieved.
Patent Information
- Application Number
- CN202421624406.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-10
AI Technical Summary
Existing mechanical buttons are prone to wear and tear during long-term use, resulting in slow response or failure. They require professional tools and skills when replacing, and are costly to repair.
A key assembly is designed in which the key shaft and the limit shaft are limited by a rotatable partition, and the key shaft and its components are removable by rotating the partition forty-five degrees without special tools or expertise.
It realizes simple disassembly and installation of key components, reduces maintenance complexity and improves replacement efficiency.
Smart Images
Figure CN222995273U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of buttons, and particularly to a button and a button assembly. Background Art
[0002] Buttons and button assemblies are an indispensable part of electronic devices, instruments, and many user interfaces. They allow users to interact with the device, send commands, or input information. These components have diverse designs and are suitable for different application scenarios;
[0003] Mechanical buttons are the most common type of buttons. They trigger signals by physically closing a circuit. Since mechanical buttons rely on physical contact and the repeated compression and extension of moving parts, these parts are prone to wear after long-term use, resulting in slow or malfunctioning button responses. When replacing existing mechanical buttons, professional disassembly tools and skills are required. Forcing disassembly without professional tools and skills can easily damage the key shaft, keycap, or internal structure, leading to high repair costs and time consumption. To solve the above problems, a button and a button assembly are proposed herein.
[0004] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Utility Model
[0005] To solve the button problem, this application provides a button and a button assembly.
[0006] The button and button assembly provided by this application adopt the following technical solutions:
[0007] A button includes a bottom plate for fixing a key seat. A sliding groove is formed in the key seat. A limiting shaft, a key shaft, and a partition are arranged in the sliding groove. The key shaft is fixed on the limiting shaft. The partition is in clearance fit with the key shaft. A rotating groove for the partition to rotate is provided on the bottom plate. A pressing assembly is arranged at the bottom of the limiting shaft. When the partition rotates by any odd multiple of 45 degrees, the key shaft and the limiting shaft and the pressing assembly thereon are detachable.
[0008] Preferably, the pressing assembly includes a telescopic member, a contact point, and an elastic member. The telescopic end of the telescopic member is fixed to the limiting shaft. The elastic member is sleeved on the telescopic end of the telescopic member, and both ends of the elastic member are respectively abutted against the telescopic member and the limiting shaft. The contact point is located inside the telescopic member.
[0009] Preferably, a connecting cavity is provided on the bottom plate, and the telescopic member is located in the connecting cavity.
[0010] Preferably, a keycap is provided on the key shaft, a limiting post is provided at the bottom of the keycap, a clamping groove engaged with the limiting post is provided on the key shaft, a dust-proof plate is provided on the limiting post, and the outer diameter of the dust-proof plate fits with the notch of the sliding groove.
[0011] Preferably, a reference scale is provided on the key base, and a corresponding scale is provided on the limiting shaft. When the partition rotates by any odd multiple of 45 degrees, the reference scale and the corresponding scale are aligned in a straight line.
[0012] Preferably, a limiting block is provided in the connecting cavity, a limiting hole is provided on the telescopic member, and the limiting block is in clearance fit with the limiting hole.
[0013] A key assembly includes the above-mentioned key.
[0014] In summary, compared with the related art, the present utility model has the following beneficial effects:
[0015] By providing a rotatable partition in the key base, the limiting shaft is used to limit the position of the key shaft in the key base. When the partition rotates by any odd multiple of 45 degrees, the limiting of the key shaft by the limiting shaft is cancelled, and thus the key shaft, the limiting shaft, and the pressing assembly can be disassembled together. Compared with the related art, by rotating the partition, the limiting of the key shaft can be released without special tools or professional knowledge, making the disassembly and installation of the key assembly simple and fast, and reducing the complexity of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic side-sectional structure view of the whole embodiment of the application;
[0017] Figure 2 is a schematic exploded structure view of the whole embodiment of the application;
[0018] Figure 3 is a schematic view of the quick-disassembly state of the key structure in the embodiment of the application;
[0019] Figure 4 is a schematic view of the whole structure of the embodiment of the application;
[0020] Figure 5 is a schematic view of the key shaft limiting state in the embodiment of the application;
[0021] Figure 6 is a schematic top view of the key shaft structure in the embodiment of the application.
[0022] Description of the reference numerals: 1, bottom plate; 2, connecting cavity; 3, telescopic member; 4, contact; 5, key base; 6, sliding groove; 7, elastic member; 8, limiting shaft; 9, key shaft; 10, partition; 11, dust-proof plate; 12, limiting post; 13, keycap; 14, reference scale; 15, corresponding scale; 16, limiting block; 17, limiting hole. Detailed implementation manners
[0023] The following further describes the present application in detail with reference to the appended Figures 1-5 drawings.
[0024] An embodiment of the present application discloses a key and a key assembly. Referring to Figures 1-5 , a key includes a bottom plate 1 for fixing a key base 5. A sliding groove 6 is formed in the key base 5. A limiting shaft 8, a key shaft 9, and a partition 10 are arranged in the sliding groove 6. The key shaft 9 is fixed on the limiting shaft 8. The partition 10 is in clearance fit with the key shaft 9. A rotating groove for the partition 10 to rotate is provided on the bottom plate 1. A pressing assembly is arranged at the bottom of the limiting shaft 8. When the partition 10 rotates by any odd multiple of 45 degrees, the key shaft 9 and the limiting shaft 8 and the pressing assembly thereon are detachable;
[0025] It should be noted that the limiting shaft 8 is cross-shaped, and a cross-shaped through hole for the limiting shaft 8 to pass through is provided on the partition 10. When the partition 10 rotates by any even multiple of 45 degrees, the limiting shaft 8 limits the key shaft 9;
[0026] It should be further noted that the key shaft 9 is threadedly connected to the limiting shaft 8;
[0027] By adopting the above technical solution, during use, the key shaft 9 and the pressing assembly at its bottom slide in the sliding groove 6 to realize the man-machine interaction work of the key. When it is necessary to replace the key accessories, the partition 10 is rotated by any odd multiple of 45 degrees, such as 45 degrees, 135 degrees, etc. The limiting shaft 8 cancels the limitation of the key shaft 9 in the key base 5, and the key shaft 9 can be pulled upward through the partition 10 to complete the disassembly.
[0028] Referring to Figure 1 , the pressing assembly includes a telescopic member 3, a contact 4, and an elastic member 7. The telescopic end of the telescopic member 3 is fixed to the limiting shaft 8. The elastic member 7 is sleeved on the telescopic end of the telescopic member 3, and both ends of the elastic member 7 are respectively abutted against the telescopic member 3 and the limiting shaft 8. The contact 4 is located inside the telescopic member 3;
[0029] It should be noted that the telescopic member 3 is a telescopic rod and the bottom sleeve of the telescopic rod is in a hollow state. The contact 4 is located at the bottom of the sliding rod inside the telescopic rod. The contact 4 is electrically connected to the circuit board of the key assembly and is the part directly participating in the circuit switching in the key assembly. When not pressed, the contact 4 is usually in an open state to keep the circuit open; when the key is pressed, the contact 4 forms a closed circuit with the circuit board, thereby completing the transmission of the electrical signal;
[0030] It should be further noted that the elastic member 7 can be a spring for the telescopic and reset of the telescopic rod;
[0031] By adopting the above technical solution, when the key shaft 9 presses down the spring and the telescopic rod contracts, the contact 4 forms a closed circuit with the circuit board, thereby completing the transmission of electrical signals. This is an existing technology that has been maturely used and will not be elaborated here.
[0032] Referring to Figure 1 , a connection cavity 2 is provided on the bottom plate 1, and the telescopic member 3 is located inside the connection cavity 2;
[0033] By adopting the above technical solution, the setting of the connection cavity 2 helps with electrical isolation, reduces external electromagnetic interference, and ensures the stability of signal transmission when the contact 4 located inside the telescopic member 3 is closed.
[0034] Referring to Figure 1 , a keycap 13 is provided on the key shaft 9, a limiting column 12 is provided at the bottom of the keycap 13, a card slot engaging with the limiting column 12 is provided on the key shaft 9, a dust-proof plate 11 is provided on the limiting column 12, and the outer diameter of the dust-proof plate 11 fits with the notch of the sliding groove 6;
[0035] It should be noted that braille markings can also be set on the keycap 13 to facilitate the operation of people with visual impairments;
[0036] By adopting the above technical solution, the cooperation between the limiting column 12 and the card slot makes the connection between the key shaft 9 and the keycap 13 more stable, and the outer diameter of the dust-proof plate 11 fits with the notch of the sliding groove 6, which can prevent external dust from entering the key seat 5.
[0037] Referring to Figure 6 , a reference scale 14 is provided on the key seat 5, a corresponding scale 15 is provided on the limiting shaft 8, and when the partition 10 rotates by any odd multiple of forty-five degrees, the reference scale 14 and the corresponding scale 15 are in a straight line;
[0038] By adopting the above technical solution, the partition 10 can be quickly adjusted to the angle at which the key shaft 9 can be disassembled through the alignment of the reference scale 14 and the corresponding scale 15.
[0039] Referring to Figure 3 , 5 , a limiting block 16 is provided inside the connection cavity 2, a limiting hole 17 is opened on the telescopic member 3, and the limiting block 16 and the limiting hole 17 are in clearance fit;
[0040] It should be noted that between the sliding rod and the sleeve of the telescopic rod, the square sliding groove and the square sliding rod cooperate (not shown in the figure) so that the sliding rod only slides inside the sleeve and cannot rotate. The end of the sliding rod is threadedly connected to the limiting shaft 8 and has the opposite thread direction to that of the key shaft 9 and the limiting shaft 8. If the spring and the contact 4 on the telescopic rod need to be replaced, they are disassembled together with the key shaft 9. If only the key shaft 9 needs to be replaced, the key shaft 9 and the limiting shaft 8 are rotated to cancel the threaded fit with the sliding rod;
[0041] By adopting the above technical solution, when the key is in normal use, the limiting block 16 and the limiting hole 17 are in clearance fit to ensure the stable operation of the key assembly. When only the key shaft 9 needs to be replaced, the clearance fit between the limiting block 16 and the limiting hole 17 makes the sliding rod not rotate with the key shaft 9.
[0042] Referring to Figures 1-6 , a key and a key assembly, including the above key;
[0043] The implementation principle of a key and a key assembly according to an embodiment of the present application is as follows: during use, pressing the key cap 13 causes the key shaft 9 and the limiting shaft 8 to press down the spring, the telescopic rod contracts, so that the contact 4 and the circuit board form a closed circuit to complete the transmission of electrical signals. When it is necessary to replace the parts of the key assembly, lift the key cap 13 upward, rotate the partition 10 by forty-five degrees. At this time, the reference scale 14 and the alignment scale 15 are in a straight line, and then turn the key shaft 9 to remove it.
[0044] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change;
[0045] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;
[0046] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
[0047] The above are all the preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.
Claims
1. A key, comprising a base plate (1) for fixing a key base (5), characterized in that: The key base (5) is provided with a sliding groove (6), and a limit shaft (8), a key shaft (9), and a partition (10) are arranged in the sliding groove (6); the key shaft (9) is fixed on the limit shaft (8), and the partition (10) and the key shaft (9) are loosely matched; a rotating groove for the partition (10) to rotate is provided on the bottom plate (1), and a pressing assembly is provided at the bottom of the limit shaft (8); when the partition (10) rotates any odd multiple of forty-five degrees, the key shaft (9) and the limit shaft (8) and the pressing assembly thereon are detachable.
2. A key according to claim 1, characterized in that: The pressing assembly comprises a telescopic member (3), a contact (4), and an elastic member (7); the telescopic end of the telescopic member (3) is fixed to a limiting shaft (8); the elastic member (7) is sleeved on the telescopic end of the telescopic member (3), and the two ends of the elastic member (7) respectively abut against the telescopic member (3) and the limiting shaft (8); and the contact (4) is located inside the telescopic member (3).
3. A key according to claim 2, characterized in that: A connecting cavity (2) is provided on the bottom plate (1), and the telescopic member (3) is located in the connecting cavity (2).
4. A key according to claim 1, characterized in that: The key shaft (9) is provided with a key cap (13), the bottom of the key cap (13) is provided with a limiting column (12), the key shaft (9) is provided with a slot engaged with the limiting column (12), the limiting column (12) is provided with a dustproof plate (11), and the outer diameter of the dustproof plate (11) is matched with the notch of the sliding groove (6).
5. A key according to claim 4, characterized in that: The key base (5) is provided with a reference scale (14), and the limit shaft (8) is provided with a reference scale (15). When the partition (10) rotates by any odd multiple of forty-five degrees, the reference scale (14) and the reference scale (15) are connected to form a straight line.
6. A key according to claim 3, characterized in that: A limit block (16) is provided in the connection cavity (2), a limit hole (17) is provided on the telescopic member (3), and the limit block (16) and the limit hole (17) are clearance-matched.
7. A key assembly, comprising the key as described in any one of claims 1-6.