Novel key shaft structure

Abstract

This utility model discloses a novel anti-detachment key switch structure, including a base, a switch seat, a key switch, and a keycap. The base has a receiving groove on its top surface, and the switch seat has a shaft hole penetrating its top and bottom surfaces and communicating with the receiving groove. The switch seat is detachably mounted on the base, and the bottom end of the key switch is detachably mounted in the shaft hole. The top end of the key switch is connected to the top wall of the keycap. Several reinforcing plates connected to the inner wall of the keycap are respectively provided around the key switch. The keycap, key switch, and reinforcing plates are integrally formed. This utility model adopts an integrally formed structure, which can reduce costs, improve the problem of key switches easily detaching from keycaps, and improve the problem of uneven key alignment when the key switch and keycap are not properly assembled.

Description

Technical Field

[0001] This utility model relates to the field of keyboard key technology, specifically a novel key axis structure that prevents key detachment. Background Technology

[0002] The keyboard is the most commonly used and primary input device for computers and other devices. It allows users to input English letters, numbers, punctuation marks, and other symbols into the computer, thus issuing commands and inputting data. A keyboard typically consists of a keyboard casing, PCB board, switch sockets, key switches, and keycaps. Existing keycaps are not easily and stably fixed to key switches. Traditionally, keycaps and key switches are mostly fixed using clips or simple plug-in methods. After prolonged use, keycaps are prone to loosening and falling off. Furthermore, improper assembly of keycaps and key switches can lead to misaligned keys, failing to meet user needs. Utility Model Content

[0003] The purpose of this utility model is to provide a novel key switch structure that prevents key switches from falling off. It adopts an integrated molding structure, which can reduce costs, improve the problem of key switches easily falling off the keycaps, and improve the problem of high and low keys when the key switches and keycaps are not properly assembled. This solves the problem mentioned in the background art that traditional keycaps are easy to fall off and cannot meet the usage requirements.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A novel anti-detachment key switch structure includes a base, a switch seat, a key switch, and a keycap. The top surface of the base has a receiving groove, and the switch seat has a shaft hole that penetrates its top and bottom surfaces and communicates with the receiving groove. The switch seat is detachably mounted on the base, and the bottom end of the key switch is detachably mounted in the shaft hole. The top end of the key switch is connected to the top wall of the keycap. Several reinforcing plates connected to the inner wall of the keycap are respectively provided on the periphery of the key switch. The keycap, key switch, and reinforcing plates are integrally formed together.

[0006] Preferably, the two edges of the bottom wall of the bearing seat are respectively connected to pins extending towards the base, and the sidewalls of the pins are formed with first sliding protrusions.

[0007] Preferably, the two outer walls of the base are respectively provided with vertically extending guide grooves that are adapted to the plug pins, and a first limiting protrusion that engages with the first sliding protrusion is provided in the guide groove; the first sliding protrusion is formed at the lower part of the plug pin, and the first limiting protrusion is formed at the upper part of the guide groove.

[0008] Preferably, the first sliding protrusion has a first inclined surface and a second inclined surface arranged opposite to each other on its upper and lower surfaces, the first inclined surface extending obliquely upward towards the first sliding protrusion and the second inclined surface extending obliquely downward towards the first sliding protrusion; the first limiting protrusion has a first guide surface and a second guide surface arranged opposite to each other on its upper and lower surfaces, the first inclined surface being parallel to the second guide surface and the second inclined surface being parallel to the first guide surface.

[0009] Preferably, the pins are made of an elastic material so that they undergo elastic deformation when subjected to force.

[0010] Preferably, the key shaft has a cavity located at its center along its axial direction.

[0011] Preferably, the key shaft is made of an elastic material so that the lower part of the key shaft undergoes elastic deformation when subjected to force.

[0012] Preferably, the two outer peripheral surfaces facing away from each other at the lower part of the key shaft are respectively provided with second sliding protrusions, and the two hole walls opposite to each other of the shaft hole are provided with slots, and a second limiting protrusion is formed between the top of the slot and the top surface of the shaft seat.

[0013] Preferably, the lower outer peripheral edge of the bearing seat extends outward to form a flange, and a reinforcing block and a reinforcing rib are connected between the flange and the outer peripheral wall of the bearing seat. The bearing seat, flange, reinforcing block and reinforcing rib are integrally formed.

[0014] Preferably, a downwardly extending main shaft is formed in the middle of the bottom surface of the base, and a plurality of pins connected to the bottom surface of the base are provided on the outer periphery of the main shaft.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By integrating the keycaps, key switches, and reinforcing plates into one unit, the number of parts can be reduced, thus lowering costs. Secondly, it can improve the problem of key switches easily detaching from keycaps. Thirdly, it can improve the problem of key misalignment when key switches and keycaps are not properly assembled. Furthermore, the key switches, switch seats, and base are detachably connected, forming a split structure that facilitates assembly and disassembly, thereby improving assembly and maintenance efficiency.

[0017] 2. Through the cooperation of the first sliding protrusion and the first limiting protrusion, the bearing seat can be stably assembled on the base; that is, simply align the pin and the guide groove and press down to quickly connect the bearing seat and the base. The operation is simple, time-saving, and assembly efficiency is high.

[0018] 3. A reinforcing block and a reinforcing rib are connected between the flange and the outer peripheral wall of the bearing seat. The bearing seat, flange, reinforcing block and reinforcing rib are integrally formed. The reinforcing block and reinforcing rib help to improve the stability of the bearing seat structure. Attached Figure Description

[0019] Figure 1 This is a perspective view of a novel anti-detachment key shaft structure according to the present invention;

[0020] Figure 2 This is an exploded view of a novel anti-detachment key shaft structure according to this utility model;

[0021] Figure 3 This is a perspective view of the key shaft and keycap integrally connected according to this utility model;

[0022] Figure 4 This is a cross-sectional view of the bearing seat of this utility model when it is removed from the base;

[0023] Figure 5 This is a sectional view of the bearing seat of this utility model when it is assembled on the base;

[0024] Figure 6 This is a cross-sectional view of the key shaft of this utility model when it is removed from the shaft seat;

[0025] Figure 7 This is a cross-sectional view of the key shaft of this utility model when it is assembled on the shaft seat.

[0026] The reference numerals in the figure are as follows: 1. Base; 11. Receiving groove; 12. Guide groove; 13. First limiting protrusion; 131. First guide surface; 132. Second guide surface; 2. Shaft seat; 21. Shaft hole; 22. Flange; 23. Reinforcing block; 24. Reinforcing rib; 25. Slot; 26. Second limiting protrusion; 3. Key shaft; 31. Cavity; 32. Second sliding protrusion; 4. Keycap; 5. Reinforcing plate; 6. Pin; 61. First sliding protrusion; 611. First inclined surface; 612. Second inclined surface; 7. Spindle; 8. Pin. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "more than" means two or more, unless otherwise explicitly specified. In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Please see Figure 1-7 A novel anti-detachment key shaft structure includes a base 1, a shaft seat 2, a key shaft 3, and a keycap 4. The base 1 has a receiving groove 11 on its top surface. The shaft seat 2 has a shaft hole 21 that penetrates its top and bottom surfaces and communicates with the receiving groove 11. The shaft seat 2 is detachably mounted on the base 1, and the bottom end of the key shaft 3 is detachably mounted within the shaft hole 21. (See also...) Figure 3 The top end of the key shaft 3 is connected to the top wall of the keycap 4, and several reinforcing plates 5 connected to the inner wall of the keycap 4 are respectively provided on the periphery of the key shaft 3. The keycap 4, the key shaft 3 and the reinforcing plates 5 are integrally formed together.

[0030] This utility model integrates the keycap 4, key switch 3, and reinforcing plate 5 into one unit. This reduces the number of parts and lowers costs. It also improves the problem of the key switch 3 easily detaching from the keycap 4. Furthermore, it improves the problem of uneven keys when the key switch 3 and keycap 4 are not properly assembled. The key switch 3, switch seat 2, and base 1 are detachably connected, forming a split structure that facilitates assembly and disassembly, thereby improving assembly and maintenance efficiency.

[0031] Please see Figure 2 as well as Figure 4The bottom wall of the bearing seat 2 is connected to two prongs 6 extending towards the base 1. A first sliding protrusion 61 is formed on the side wall of each prong 6. The two outer walls of the base 1 are respectively provided with vertically extending guide grooves 12 that are adapted to the prongs 6. A first limiting protrusion 13 is provided within the guide groove 12 that engages with the first sliding protrusion 61. Through the cooperation of the first sliding protrusion 61 and the first limiting protrusion 13, the bearing seat 2 is stably mounted on the base 1. The guide groove 12 guides the movement of the prongs 6. The first sliding protrusion 61 is formed at the lower part of the prong 6, and the first limiting protrusion 13 is formed at the upper part of the guide groove 12.

[0032] In this embodiment, the number of pins 6 and the number of guide grooves 12 are the same, both being four; two pins are provided on each of the two opposite edges of the bottom wall of the shaft seat 2, but this utility model does not limit the number of pins 6 and guide grooves 12, and can set other numbers according to requirements; and the bottom surface of the shaft seat 2 is square, and the pins 6 can be set on any two opposite edges of the bottom surface of the shaft seat 2, or they can be set on the four edges of the bottom surface of the shaft seat 2.

[0033] Please see Figure 4 The first sliding protrusion 61 has a first inclined surface 611 and a second inclined surface 612 formed on its upper and lower surfaces, respectively, which are arranged in opposite directions. The first inclined surface 611 extends obliquely upward towards the first sliding protrusion 61, and the second inclined surface 612 extends obliquely downward towards the first sliding protrusion 61. The first limiting protrusion 13 has a first guide surface 131 and a second guide surface 132 formed on its upper and lower surfaces, respectively, which are arranged in opposite directions. The first inclined surface 611 and the second guide surface 132 are parallel, and the second inclined surface 612 is parallel to the first guide surface 131. In this embodiment, the pin 6 is made of an elastic material, such as plastic, which allows the pin 6 to undergo a certain elastic deformation when subjected to force.

[0034] Please see Figure 4 When removing the bearing seat 2 from the base 1, pull the bearing seat 2 upward. At this time, the first inclined surface 611 of the first sliding protrusion 61 is in contact with the second guide surface 132 of the first limiting protrusion 13. The first inclined surface 611 is squeezed by the second guide surface 132, which forces the pin 6 to open outward relative to the base 1 until the entire first sliding protrusion 61 is separated from the first limiting protrusion 13, thereby separating the bearing seat 2 from the base 1. The operation is simple and convenient, and easy to maintain.

[0035] Please see Figure 5When assembling the bearing seat 2 onto the base 1, first align the pin 6 of the bearing seat 2 with the guide groove 12 of the base 1, and then press the bearing seat 2 downwards. When the second inclined surface 612 of the first sliding protrusion 61 is in contact with the first guide surface 131 of the first limiting protrusion 13, as the pin 6 is pressed down, the second inclined surface 612 is forced by the pressure of the first guide surface 131 to open the pin 6 outwards relative to the base 1. When the first sliding protrusion 61 passes the first limiting protrusion 13, the pin 6 swings inwards to return to its original position. At this time, the first inclined surface 611 is in contact with the second guide surface 132, thereby making the first sliding protrusion 61 and the first limiting protrusion 13 fasten together, just as... Figure 4 As shown. The entire assembly process described above only requires aligning the pin 6 and the guide groove 12, and then pressing down to quickly connect the shaft seat 2 and the base 1. The operation is simple, time-saving, and has high assembly efficiency.

[0036] Please see Figure 2 The lower outer peripheral edge of the bearing seat 2 extends outward to form a flange 22. The flange 22 is connected to the outer peripheral wall of the bearing seat 2 by a reinforcing block 23 and a reinforcing rib 24. In this embodiment, the bearing seat 2, the flange 22, the reinforcing block 23 and the reinforcing rib 24 are integrally formed. The reinforcing block 23 and the reinforcing rib 24 help to improve the stability of the bearing seat 2 structure.

[0037] Please see Figure 2-3 The key shaft 3 has a cavity 31 located at its center along its axial direction. The key shaft 3 is made of an elastic material, such as plastic, allowing a certain degree of elastic deformation when the lower part of the key shaft 3 is subjected to force. The two outer peripheral surfaces of the lower part of the key shaft 3 facing away from each other are respectively provided with second sliding protrusions 32. Please refer to [link to relevant documentation]. Figure 6-7 The two opposite holes of the shaft hole 21 are provided with slots 25, and a second limiting protrusion 26 is formed between the top of the slot 25 and the top surface of the shaft seat 2. In this embodiment, the structure of the second sliding protrusion 32 is the same as that of the first sliding protrusion 61, and the structure of the second limiting protrusion 26 is the same as that of the first limiting protrusion 13. Their structure and principle will not be described in detail here. The assembly and disassembly between the key shaft 3 and the shaft seat 2 can be quickly realized by the cooperation of the second sliding protrusion 32 and the second limiting protrusion 26.

[0038] Please see Figure 1-2 A downward-extending spindle 7 is formed in the middle of the bottom surface of the base 1. Several pins 8 connected to the bottom surface of the base 1 are provided on the outer periphery of the spindle 7. The base 1 is mounted on a keyboard or other device through the spindle 7 and the pins 8.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel anti-detachment key shaft structure, comprising a base (1), a shaft seat (2), a key shaft (3), and a keycap (4), characterized in that: The base (1) has a receiving groove (11) on its top surface. The shaft seat (2) has a shaft hole (21) that passes through its top and bottom surfaces and communicates with the receiving groove (11). The shaft seat (2) is detachably installed on the base (1). The bottom end of the key shaft (3) is detachably installed in the shaft hole (21). The top end of the key shaft (3) is connected to the top wall of the keycap (4). Several reinforcing plates (5) connected to the inner wall of the keycap (4) are respectively provided on the periphery of the key shaft (3). The keycap (4), key shaft (3) and reinforcing plates (5) are integrally formed together.

2. The novel anti-detachment key shaft structure according to claim 1, characterized in that: The bottom wall of the bearing seat (2) is connected to two edges of a pin (6) extending toward the base (1), and the side wall of the pin (6) has a first sliding protrusion (61).

3. The novel anti-detachment key shaft structure according to claim 2, characterized in that: The base (1) has vertically extending guide grooves (12) on its two outer walls that are adapted to the pin (6). The guide groove (12) is provided with a first limiting protrusion (13) that is engaged with the first sliding protrusion (61). The first sliding protrusion (61) is formed at the lower part of the pin (6), and the first limiting protrusion (13) is formed at the upper part of the guide groove (12).

4. The novel anti-detachment key shaft structure according to claim 3, characterized in that: The first sliding protrusion (61) has a first inclined surface (611) and a second inclined surface (612) formed on its upper and lower surfaces respectively, which are arranged opposite to each other. The first inclined surface (611) extends obliquely upward towards the first sliding protrusion (61), and the second inclined surface (612) extends obliquely downward towards the first sliding protrusion (61). The first limiting protrusion (13) has a first guide surface (131) and a second guide surface (132) formed on its upper and lower surfaces respectively, which are arranged opposite to each other. The first inclined surface (611) is parallel to the second guide surface (132), and the second inclined surface (612) is parallel to the first guide surface (131).

5. The novel anti-detachment key shaft structure according to claim 4, characterized in that: The pin (6) is made of an elastic material so that the pin (6) undergoes elastic deformation when subjected to force.

6. The novel anti-detachment key shaft structure according to any one of claims 1-5, characterized in that: The key shaft (3) has a cavity (31) located at its center along its axial direction.

7. The novel anti-detachment key shaft structure according to claim 6, characterized in that: The key shaft (3) is made of an elastic material so that the lower part of the key shaft (3) undergoes elastic deformation when subjected to force.

8. The novel anti-detachment key shaft structure according to claim 7, characterized in that: The key shaft (3) has two outer peripheral surfaces facing away from each other at the bottom, and two slots (25) are provided on the opposite holes of the shaft hole (21). A second limiting protrusion (26) is formed between the top of the slot (25) and the top surface of the shaft seat (2).

9. The novel anti-detachment key shaft structure according to any one of claims 1-5, characterized in that: The lower outer peripheral edge of the bearing seat (2) extends outward to form a flange (22). The flange (22) and the outer peripheral wall of the bearing seat (2) are connected by a reinforcing block (23) and a reinforcing rib (24). The bearing seat (2), flange (22), reinforcing block (23) and reinforcing rib (24) are integrally formed.

10. The novel anti-detachment key shaft structure according to claim 1, characterized in that: The base (1) has a downwardly extending main shaft (7) formed in the middle of its bottom surface, and a number of pins (8) connected to the bottom surface of the base (1) are provided on the outer periphery of the main shaft (7).

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