Keyboard with keycap anti-falling structure

Abstract

The utility model belongs to the technical field of keycap anti-falling structures of keyboards, and particularly relates to a keyboard with a keycap anti-falling structure, which comprises a base and an upper cover, a circuit board is arranged on the base, a plurality of keys are connected to welding spots on the circuit board, keycaps are sleeved on the keys, keycap holes for the keycaps to pass through are arranged on the upper cover, and the keycaps are arranged on the keycap holes. According to the keyboard, the blocking mechanisms used for preventing the key caps from falling off are arranged in the key holes, the extending parts at the bottoms of the key caps make contact with the blocking parts in the blocking grooves through the blocking mechanisms arranged on the upper cover, the key caps can be effectively prevented from loosening and falling off on the keyboard, the durability of the keyboard is improved, and the service life of the keyboard is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of keyboard keycap anti-falling structures, in particular to a keyboard with a keycap anti-falling structure. Background Art

[0002] A keyboard is a device used to input commands and data for operating a computer. English letters, numbers, punctuation marks, and other symbols can be entered into the computer through the keyboard, thereby issuing commands and inputting data. Typical computer keyboards have a linkage structure installed at the bottom of the multiple keycaps that make up the keyboard. This allows each keycap to automatically reset after being pressed. The circuit system at the bottom of each keycap transmits the instructions and signals associated with the keycap press to the computer host, which then displays the relevant information entered on the screen. Furthermore, the multiple keycaps on the keyboard are assembled on top of the linkage structure using a docking and locking mechanism, but this lacks a secure locking and positioning mechanism. Therefore, external forces can cause the keycaps to loosen or fall off at their pivotal connection to the linkage structure during use, resulting in numerous problems with the keyboard's keycaps in practical applications. Utility Model Content

[0003] In response to the shortcomings of the existing technology, the utility model provides a keyboard with a keycap anti-falling structure. By setting a blocking mechanism on the upper cover, the extended part at the bottom of the keycap contacts the blocking part in the blocking groove, which can effectively prevent the keycap from loosening and falling off on the keyboard, thereby improving the durability of the keyboard, extending its service life, and solving the problems in the above background.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a keyboard with a keycap anti-falling structure, comprising a base and an upper cover, a circuit board is provided on the base, a number of keys are connected to the solder points on the circuit board, all keys are covered with keycaps, the upper cover is provided with a key hole for the keycap to pass through, and a blocking mechanism is provided in the key hole to prevent the keycap from falling off.

[0005] Preferably, the blocking mechanism includes a blocking groove arranged inside the key hole, and blocking parts are provided at the four corners of the blocking groove.

[0006] Preferably, the keycap includes a button portion, and an extension portion is provided around the bottom of the button portion, and the extension portion is in contact with the blocking portion.

[0007] Preferably, the outer diameter of the button portion is smaller than the inner diameter of the blocking portion, and the outer diameter of the extending portion is larger than the inner diameter of the blocking portion.

[0008] Preferably, a USB interface is provided on one side of the circuit board.

[0009] Preferably, a power switch is provided on the base.

[0010] Preferably, the base is provided with an LED indicator lamp.

[0011] Preferably, the base, the key cap and the upper cover are all made of plastic material.

[0012] Compared with the prior art, the keyboard with the key cap anti-falling structure has the beneficial effects as follows: the extension part at the bottom of the key cap is in contact with the blocking part in the blocking groove through the blocking mechanism arranged on the upper cover, so that the key cap can be effectively prevented from loosening and falling off on the keyboard, the durability of the keyboard is improved, and the service life is prolonged.

[0013] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the keyboard with the key cap anti-falling structure.

[0015] Figure 2 It is an exploded view of the keyboard with the key cap anti-falling structure.

[0016] Figure 3 It is an enlarged view of the structure at A of the keyboard with the key cap anti-falling structure.

[0017] Figure 4 It is an enlarged view of the structure at B of the keyboard with the key cap anti-falling structure.

[0018] In the figure: 1, base; 2, upper cover; 3, circuit board; 4, key; 5, key cap; 51, key part; 52, extension part; 6, blocking mechanism; 61, blocking groove; 62, blocking part; 7, USB interface; 8, power switch; 9, LED indicator lamp. DETAILED DESCRIPTION

[0019] The embodiments of the present application will be described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application. All other examples obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0020] In combination with Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a keyboard with a keycap anti-drop structure includes a base 1 and a top cover 2. A circuit board 3 is mounted on the base 1. Several keys 4 are soldered to the circuit board 3. Each key 4 is capped with a keycap 5. The top cover 2 is provided with a keyhole 21 for the keycap 5 to pass through. A blocking mechanism 6 is located within the keyhole 21 to prevent the keycap 5 from falling off. Specifically, a keyboard with a keycap anti-drop structure not only improves the user experience but also significantly enhances the keyboard's durability and stability. The keyboard primarily consists of core components: the base 1, top cover 2, circuit board 3, keys 4, keycaps 5, and an innovative blocking mechanism 6. These components work seamlessly together to form this efficient and reliable input device. The base 1 securely mounts the circuit board 3 and other electronic components. The circuit board 3 receives user input via keystrokes and converts them into signals recognizable by the computer. The circuit board 3 ensures accurate and stable signal transmission. Furthermore, the circuit board surface is covered with a protective coating to prevent damage to the circuitry from external factors such as dust and moisture. The key 4 is the component that the user directly contacts, and an elastic element (such as a rubber dome or a mechanical spring) is installed under each key 4 to provide the touch and resilience of the key 4. The keycap 5 covers the top of the key 4, and the surface is frosted or UV coated to improve the comfort and anti-slip properties of the fingers. The material of the keycap 5 is usually wear-resistant materials such as ABS or PBT to ensure that it still maintains a good appearance and feel under long-term use. In order to prevent the keycap 5 from falling off under unexpected circumstances (such as severe vibration, accidental touch, etc.), a blocking mechanism 6 is set in the key hole 21 on the upper cover 2. When the keycap 5 is installed normally, the blocking mechanism 6 will gently press against the bottom edge of the keycap 5, forming a subtle locking effect, which will not affect the normal pressing of the keycap 5 and can effectively prevent it from falling off. Once the keycap 5 is subjected to abnormal external force, the blocking mechanism 6 will respond quickly, absorb the impact energy through its elastic deformation, and protect the keycap 5 from being ejected.

[0021] Combine Figure 3 and Figure 4As shown, the blocking mechanism 6 includes a blocking groove 61 disposed within the key hole 21, with blocking portions 62 disposed at the four corners of the blocking groove 61. Specifically, the core component of the blocking mechanism 6 includes the blocking groove 61 disposed within the key hole 21. The blocking groove 61 matches the shape of the bottom edge of the keycap 5, forming a natural guiding and limiting effect. When the keycap 5 is installed on the key 4, its bottom edge will naturally embed into the blocking groove 61, achieving a preliminary fixation. To further enhance the blocking effect and prevent the keycap 5 from accidentally falling off in extreme situations (such as strong vibration, misoperation, etc.), blocking portions 62 are specially provided at the four corners of the blocking groove 61. When the keycap 5 is subjected to abnormal external force, the blocking portions 62 at the four corners will first feel the force and buffer and disperse the impact by blocking. At the same time, because the blocking portions 62 are located at four key nodes on the edge of the keycap 5, they can form an effective multi-point support, greatly increasing the connection strength between the keycap 5 and the upper cover 2, making it more difficult for the keycap 5 to be pulled out by external force. Furthermore, the design of the barrier portion 62 also takes into account the wear and tear caused by long-term use. By selecting wear-resistant materials and optimizing their structural morphology, it is ensured that the barrier portion 62 can maintain good working condition and blocking effect even during frequent use and cleaning.

[0022] Combine Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, the keycap 5 includes a button portion 51, and an extension portion 52 is provided around the bottom of the button portion 51, and the extension portion 52 is in contact with the blocking portion 62. Specifically, the keycap 5, as a component that the user directly contacts, is not only related to the feel and comfort of input, but also directly affects the overall stability and durability of the keyboard. In the fine structure of the keycap 5, the button portion 51 is the main area for the user to operate the button 4. Its shape, size and surface material have been carefully designed and selected to conform to ergonomic principles and provide the best tactile experience. The extension portion 52 is cleverly provided around the bottom of the button portion 51. This design is a key link in the anti-fall-off structure of the keycap 5. The extension portion 52 is not a simple plane or protrusion, but is customized according to the shape and position of the blocking groove 61 and the blocking portion 62 to ensure that it can be accurately embedded in the blocking groove 61 during installation and form a good contact relationship with the blocking portion 62. When the keycap 5 is installed on the keyboard, the extension 52 will first guide the keycap to align and slide into the blocking groove 61, and then when it reaches the bottom, its edge will fit tightly with the blocking portion 62. This fit not only increases the physical connection area between the keycap 5 and the upper cover 2, but also further enhances the stability of the connection through friction. Even under the action of external force, the keycap 5 is difficult to be pulled out easily, thereby effectively preventing the keycap 5 from falling off. In addition, the contact between the extension 52 and the blocking portion 62 also has a certain elastic buffering effect. When the keycap 5 is impacted by external force, the extension 52 will first contact the blocking portion 62 and undergo slight deformation, thereby absorbing part of the impact energy and reducing damage to the keycap 5 and the internal structure. This design not only improves the durability of the keyboard, but also extends its service life.

[0023] Combine Figure 2 、 Figure 3 and Figure 4As shown, the outer diameter of the key portion 51 is smaller than the inner diameter of the blocking portion 62, while the outer diameter of the extension 52 is larger than the inner diameter of the blocking portion 62. When detailing the interaction between the keycap 5 and the blocking mechanism 6, the dimensional relationship between the keycap 51, the extension 52, and the blocking portion 62 becomes particularly important. This precise dimensional design not only ensures that the keycap 5 can be smoothly installed and securely fixed to the keyboard, but also prevents installation difficulties or detachment caused by improper dimensions. First, the outer diameter of the keycap 51, the portion that the user directly contacts, is designed to be smaller than the inner diameter of the blocking portion 62. This design ensures that the keycap 51 can easily pass through the keyhole 21 of the upper cover 2 and smoothly enter the blocking groove 61. If the outer diameter of the keycap 51 is too large, it may cause obstruction during installation, or even prevent it from being fully inserted into the blocking groove 61, thereby affecting the stability of the keycap 5. However, simply relying on the outer diameter of the keycap 51 being smaller than the inner diameter of the blocking portion 62 is not sufficient to ensure the stability of the keycap 5. Therefore, extensions 52 are provided around the bottom of the key portion 51, and the outer diameter of the extensions 52 is intentionally larger than the inner diameter of the blocking portion 62. This design ensures that once the keycap 5 is installed, the extensions 52 naturally snap onto the outer side of the blocking portion 62, creating a "snap-on" effect. This snap-on structure not only strengthens the connection between the keycap 5 and the upper cover 2 but also effectively prevents the keycap 5 from accidentally falling off by physically blocking it. Furthermore, the dimensional relationship between the extensions 52 and the blocking portion 62 provides a certain degree of elastic buffering. When the keycap 5 is impacted by external forces, the extensions 52 can deform to a certain extent, absorbing the impact energy and reducing damage to the keycap 5 and the internal structure. This design not only improves the durability of the keyboard but also provides a smoother feel when typing. The precise dimensional design of the key portion 51 with an outer diameter smaller than the inner diameter of the blocking portion 62 and the extension 52 with an outer diameter larger than the inner diameter of the blocking portion 62 together form the core of the keycap 5's anti-falloff mechanism. Through clever coordination and collaboration, they ensure the secure installation and effective anti-falling function of the keycap 5, providing users with a more reliable and comfortable input experience.

[0024] Combine Figure 1 and Figure 2 As shown, a USB interface 7 is provided on one side of the circuit board 3. Figure 1 and Figure 2 As shown, a power switch 8 is provided on the base 1. Figure 1 and Figure 2As shown, the base 1 is provided with an LED indicator light 9. Specifically, the USB interface 7 is arranged on one side of the circuit board 3, such a layout design not only facilitates users to plug and use, but also ensures the stability and reliability of the connection. The USB interface 7 adopts the standard USB specification, has wide compatibility and universality, and can be easily connected with most computers, laptops, tablets and smartphones and other devices. The USB interface 7 also has the characteristics of plug and play, and users can use it directly without installing additional drivers. This feature greatly simplifies the installation and use process of the keyboard, improves the work efficiency of the user. The power switch 8 is arranged at an appropriate position of the base 1, usually located on one side or top of the keyboard, so as to be easily touched by the user. The design of this switch is simple and practical, and the user only needs to press it gently to control the power on and off of the keyboard. This function is particularly important when the keyboard is not in use, and by turning off the power switch 8, it can effectively reduce energy consumption, prolong the service life of the keyboard, and also avoid potential safety hazards caused by long-time power-on. The LED indicator light 9 is installed at a conspicuous position of the base 1, such as the top or side of the keyboard. The main function of the LED indicator light 9 is to convey the working status information of the keyboard to the user. According to different designs, the LED indicator light 9 can display various states, such as power state (whether powered on), connection state (whether successfully connected with the computer), Caps Lock state, Num Lock state, etc. The real-time feedback of these information enables the user to grasp the working condition of the keyboard at any time, so as to more efficiently perform input operation.

[0025] In combination Figure 1 , Figure 2 and Figure 3As shown, the base 1, keycaps 5, and top cover 2 are all made of plastic. Specifically, the three main components, base 1, keycaps 5, and top cover 2, are all made of plastic. First, plastic is lightweight, making the entire keyboard easier to carry and use without placing any additional burden on the user. Furthermore, plastic has excellent processability and can be formed through various processes such as injection molding and extrusion, making it easier for manufacturers to mass-produce, thereby reducing costs and improving production efficiency. Second, plastic also offers excellent durability. High-quality plastic has high impact and wear resistance, allowing it to withstand the bumps and wear of daily use, maintaining the keyboard's appearance and performance. Furthermore, plastic is corrosion-resistant and weather-resistant, adapting to various usage environments. Plastic offers unique advantages in the material selection of the keycaps 5. The plastic keycaps 5 have a smooth and easy-to-clean surface, reducing stains and bacteria growth, keeping the keyboard hygienic. Furthermore, plastic is elastic, providing good tactile feedback and enhancing the user's input experience. Of course, in order to further improve the durability and feel of the keycap 5, manufacturers usually use high-quality materials such as ABS plastic or PBT plastic to manufacture it. For the base 1 and the upper cover 2, plastic materials also have many advantages. They can be tightly combined together to form a stable support structure, ensuring the stability and reliability of the keyboard during use. In addition, plastic materials also have certain insulation properties, which can protect internal electronic components such as the circuit board 3 from external electromagnetic interference and static electricity. In summary, the base 1, keycap 5 and upper cover 2 are all made of plastic materials based on a comprehensive consideration of multiple factors such as weight, cost, durability, processing performance and user experience. This choice not only meets the basic functional requirements of the keyboard, but also provides users with a lighter, more durable, easier to clean and tactile input device.

[0026] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A keyboard with a keycap anti-drop structure, comprising a base (1) and an upper cover (2), wherein a circuit board (3) is provided on the base (1), a plurality of keys (4) are connected to solder points on the circuit board (3), and keycaps (5) are provided on all keys (4), characterized in that: The upper cover (2) is provided with a key hole (21) for the key cap (5) to pass through, and a blocking mechanism (6) for preventing the key cap (5) from falling off is provided in the key hole (21). The blocking mechanism (6) includes a blocking groove (61) provided inside the key hole (21), and blocking portions (62) are provided at the four corners of the blocking groove (61).

2. A keyboard with a keycap anti-falling structure according to claim 1, characterized in that: The key cap (5) comprises a key portion (51), and an extension portion (52) is provided around the bottom of the key portion (51), and the extension portion (52) is in contact with the blocking portion (62).

3. The keyboard with a keycap anti-falling structure according to claim 2, characterized in that: The outer diameter of the button portion (51) is smaller than the inner diameter of the blocking portion (62), and the outer diameter of the extension portion (52) is larger than the inner diameter of the blocking portion (62).

4. The keyboard with a keycap anti-falling structure according to claim 3, characterized in that: A USB interface (7) is provided on one side of the circuit board (3).

5. The keyboard with a keycap anti-falling structure according to claim 4, characterized in that: A power switch (8) is provided on the base (1).

6. The keyboard with a keycap anti-falling structure according to claim 5, characterized in that: An LED indicator light (9) is provided on the base (1).

7. The keyboard with a keycap anti-falling structure according to claim 6, characterized in that: The base (1), keycap (5) and upper cover (2) are all made of plastic.

Images