A rectangular piano key switch

Abstract

A rectangular key switch, comprising: a bottom plate, on which four mounting openings are arranged in a "field" shape; a first-gear button, a second-gear button, a reset button and a self-locking button, which are respectively installed in the mounting openings; the first-gear button and the second-gear button are distributed on the same side of the bottom plate, and the first-gear button and the second-gear button are respectively provided with a first-gear locking rod and a second-gear locking rod, and the locking rods extend outwards; a self-locking plate, on which a first locking hook and a second locking hook are arranged corresponding to the positions of the first-gear locking rod and the second-gear locking rod, for cooperating with the first-gear locking rod and the second-gear locking rod; a first spring, arranged between the self-locking plate and the bottom plate, and the first spring pushes the self-locking plate to move in the direction of meshing with the locking rod; a reset button, arranged on the side adjacent to the first-gear button and the second-gear button; a reset plate, a reset plate is arranged on one side of the reset button, and a reset locking rod extending outwards is arranged on the side wall of the reset button, and the reset locking rod pushes the reset plate to move.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical switches, and particularly to a rectangular key switch. Background Art

[0002] The existing key switches are widely used in various electronic devices and mechanical products and serve as an important part of human-computer interaction. However, the mainstream key switch designs in the current market generally have some significant limitations, especially in terms of structural layout and appearance adaptability.

[0003] Specifically, most of the existing key switches adopt a strip design, that is, multiple push-button switches are usually arranged in a straight line and are arranged side by side. Although this linear layout can meet the basic functional requirements in some application scenarios, its inherent structural limitations result in a rather rigid overall shape, lacking flexibility in design and aesthetic appeal. With the continuous development of modern product design concepts, consumers have a trend towards diversified and personalized designs for electronic products. Many new products put forward higher requirements in terms of spatial layout, user experience, and visual presentation, and the rigid design of the existing key switches is difficult to integrate into the compact spaces or unique appearances of these new products, thus restricting the overall innovation and market competitiveness of the products. Therefore, it is necessary to make further improvements to it. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the shortcomings of the existing technologies and provide a rectangular key switch with novel structure, flexible layout, and beautiful appearance.

[0005] The purpose of the utility model is realized in the following way: A rectangular key switch, comprising:

[0006] A bottom plate, on which four mounting holes are arranged in a "field" shape distribution.

[0007] A first gear button, a second gear button, a reset button, and a self-locking button, which are respectively installed in the mounting holes.

[0008] The first gear button and the second gear button are distributed on the same side of the bottom plate. The first gear button and the second gear button are respectively provided with a first gear lock rod and a second gear lock rod, and the lock rods extend outwards.

[0009] A self-locking plate, on which a first lock hook and a second lock hook are arranged corresponding to the positions of the first gear lock rod and the second gear lock rod for cooperating with the first gear lock rod and the second gear lock rod.

[0010] A first spring is arranged between the self-locking plate and the bottom plate, and the first spring pushes the self-locking plate to move in the direction of meshing with the lock rods.

[0011] The reset button is arranged on the side adjacent to the first gear button and the second gear button.

[0012] A reset plate is provided on one side of the reset button. A reset locking rod extending outward is provided on the side wall of the reset button, and the reset locking rod pushes the reset plate to move.

[0013] A reset pushing surface is provided on the reset plate, and a reset blocking surface is provided on the self-locking plate. The reset plate is mutually extruded with the reset blocking surface through the reset pushing surface to push the self-locking plate to move, so as to release the first-gear locking rod or the second-gear locking rod.

[0014] The first-gear locking rod, the second-gear locking rod and the reset locking rod are all arranged in an inverted triangle shape, and arc-shaped guiding convex surfaces are provided at the lower ends of the first-gear locking rod, the second-gear locking rod and the reset locking rod.

[0015] On the sides of the first locking hook and the second locking hook facing the first-gear locking rod and the second-gear locking rod, extrusion inclined surfaces are respectively provided.

[0016] An interlocking plate is further installed on the outer side of the self-locking plate. Interlocking inclined surfaces are provided on the interlocking plate corresponding to the first-gear locking rod and the second-gear locking rod. The first-gear locking rod or the second-gear locking rod is mutually extruded with the interlocking inclined surface to push the interlocking plate to move.

[0017] The self-locking plate and the reset plate are perpendicularly arranged on two adjacent sides of the bottom plate. Correspondingly: the reset pushing surface and the reset blocking surface are arranged in an inclined shape of °.

[0018] The outer end surfaces of the first-gear button, the second-gear button, the reset button and the self-locking button are covered with key caps. The key caps are arranged in a square shape, and the four key caps are distributed in a cross shape.

[0019] The outer cylindrical surfaces of the first-gear button, the second-gear button, the reset button and the self-locking button are sleeved with reset springs, and the reset springs push the key caps to reset.

[0020] The bottom plate is installed inside the outer shell. The outer shell is a frame structure with openings at both upper and lower ends. A partition is horizontally arranged inside the outer shell, and avoidance areas are provided on the partition corresponding to the positions of the first-gear button, the second-gear button, the reset button and the self-locking button.

[0021] The beneficial effects of the present utility model are as follows: 1. The structure is simple, the manufacturing cost is low, and the market competitiveness is improved.

[0022] 2. Different from the design of strip-shaped and linear arrangement of buttons commonly adopted in the prior art, the rectangular key switch of the present invention is distributed in a cross shape. This unique cross-shaped design greatly increases the flexibility and diversity of the button layout, making the shape of the key switch no longer limited to the rigid strip shape, but can be more compact and beautiful.

[0023] 3. The button distribution in a tic-tac-toe pattern enables this switch to better meet the requirements of modern products for diverse and personalized appearance designs, especially suitable for electronic devices, household appliances, or vehicle-mounted systems with limited space or special visual effect requirements. At the same time, this layout also helps to optimize the use of internal space and reserve more possibilities for the integration of other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the overall assembly effect diagram of the present utility model.

[0025] Figure 2 It is the structural exploded view of the present utility model.

[0026] Figure 3 It is the schematic diagram of the structure after hiding the outer shell in the present utility model.

[0027] Figure 4 It is the structural exploded view of the bottom plate and the button in the present utility model.

[0028] Figure 5 It is the schematic diagram of the structure after hiding the outer shell and the bottom plate in the present utility model.

[0029] Figure 6 It is the schematic diagram of the structure after pressing the first-gear button in the present utility model.

[0030] Figure 7 It is the structural exploded view of the self-locking plate and the reset plate in the present utility model.

[0031] Figure 8 It is the schematic diagram of the self-locking button structure in the present utility model.

[0032] Figure 9 It is the structural sectional view of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The following further specifically describes the present utility model in conjunction with the attached drawings. A rectangular key switch includes:

[0034] A bottom plate 1, on which four mounting openings 11 are arranged in a tic-tac-toe pattern;

[0035] A first-gear button 2, a second-gear button 3, a reset button 4, and a self-locking button 5 are respectively installed in the mounting openings 11;

[0036] The first-gear button 2 and the second-gear button 3 are distributed on the same side of the bottom plate 1. The first-gear button 2 and the second-gear button 3 are respectively provided with a first-gear locking rod 21 and a second-gear locking rod 31, and the locking rods extend outwards;

[0037] A self-locking plate 6, on which a first locking hook 61 and a second locking hook 62 are provided corresponding to the positions of the first-stage locking rod 21 and the second-stage locking rod 31, for cooperating with the first-stage locking rod 21 and the second-stage locking rod 31;

[0038] A first spring 63, arranged between the self-locking plate 6 and the bottom plate 1, and the first spring 63 pushes the self-locking plate 6 to move in the direction of meshing with the locking rod;

[0039] A reset button 4, arranged on the side adjacent to the first-stage button 2 and the second-stage button 3;

[0040] A reset plate 7, a reset plate 7 is arranged on one side of the reset button 4, and a reset locking rod 41 extending outward is provided on the side wall of the reset button 4, and the reset locking rod 41 pushes the reset plate 7 to move;

[0041] A reset pushing surface 71 is arranged on the reset plate 7, a reset blocking surface 64 is arranged on the self-locking plate 6, and the reset plate 7 and the reset blocking surface 64 mutually extrude through the reset pushing surface 71, pushing the self-locking plate 6 to move, so as to release the first-stage locking rod 21 or the second-stage locking rod 31.

[0042] In this embodiment, the bottom plate 1 serves as the basic support of the entire switch, and four mounting holes 11 distributed in a "field" shape are arranged thereon. The first-stage button 2, the second-stage button 3, the reset button 4 and the self-locking button 5 are respectively installed in these mounting holes 11 to form the main control interface.

[0043] When the first-stage button 2 or the second-stage button 3 is pressed, the first-stage locking rod 21 or the second-stage locking rod 31 extending outward from its side wall moves accordingly. The first locking hook 61 or the second locking hook 62 on the self-locking plate 6 cooperates with the corresponding locking rod under the push of the first spring 63, that is, the locking hook is caught in a specific position of the locking rod, so as to lock the button in the pressed state.

[0044] When it is necessary to release the locked button, press the reset button 4. The reset locking rod 41 on the side wall of the reset button 4 pushes the reset plate 7 to move. The reset pushing surface 71 on the reset plate 7 and the corresponding reset blocking surface 64 on the self-locking plate 6 mutually extrude. This extrusion causes the self-locking plate 6 to move in the non-meshing direction against the thrust of the first spring 63, so that the first locking hook 61 or the second locking hook 62 disengages from the locking rod, thereby releasing the locked button and making it reset.

[0045] This "field"-shaped button layout breaks the limitation of the traditional linear arrangement, makes the switch structure more compact and diversified, greatly improves the flexibility and adaptability of the product appearance design, and meets the requirements of modern products for aesthetics and space utilization.

[0046] In one embodiment: the first-position locking lever 21, the second-position locking lever 31 and the reset locking lever 41 are all configured as inverted triangles, and the lower ends of the first-position locking lever 21, the second-position locking lever 31 and the reset locking lever 41 are provided with arc-shaped guide convex surfaces 32.

[0047] In this embodiment, all three locking levers are designed as inverted triangles. When the locking lever contacts the locking hook or related components during movement, the beveled surface of the inverted triangle helps guide and smoothly enter or disengage into the engaging position, reducing jamming and friction.

[0048] In addition, the lower ends of the first-position locking lever 21, the second-position locking lever 31, and the reset locking lever 41 are provided with arc-shaped guide convex surfaces 32. These arc-shaped convex surfaces act as guides and buffers during button presses or resets, further ensuring the smoothness of the locking lever movement and reducing impact and wear.

[0049] In one embodiment, the first locking hook 61 and the second locking hook 62 are respectively provided with a pressing slope 65 on the side facing the first locking bar 21 and the second locking bar 31.

[0050] When the first locking lever 21 or the second locking lever 31 approaches the first locking hook 61 or the second locking hook 62 during the pressing process, the locking lever will first contact the compression ramp 65. The compression ramp 65 guides the locking lever to smoothly slide into the engaging position of the locking hook, while providing a gradually increasing resistance to ensure accurate locking.

[0051] In this embodiment, the design of the 65° compression ramp ensures smooth engagement between the locking bar and the locking hook, avoiding hard impacts and jamming, making the locking action more precise and reliable. This smooth engagement process also brings better button feel, allowing users to experience clear and unobstructed locking feedback.

[0052] In one embodiment: an interlocking plate 8 is also installed on the outer side of the self-locking plate 6. An interlocking inclined surface 81 is provided on the interlocking plate 8 corresponding to the first locking rod 21 and the second locking rod 31. The first locking rod 21 or the second locking rod 31 presses against each other with the interlocking inclined surface 81, pushing the interlocking plate 8 to move.

[0053] In this embodiment, when either the first-position locking lever 21 or the second-position locking lever 31 is pressed and locked, its movement will press against the interlocking inclined surface 81, thereby pushing the interlocking plate 8 to move. This linkage mechanism can be designed to prevent another button from being pressed simultaneously, realizing the interlocking function. That is, when one button is locked, the other position button cannot be pressed at the same time, avoiding accidental operation. The introduction of the interlocking function greatly improves the safety and reliability of the switch, avoiding system chaos or damage caused by pressing incompatible buttons simultaneously. In addition, the mechanical interlocking design can simplify the subsequent circuit control logic to a certain extent and reduce the overall system complexity.

[0054] In one embodiment: the self-locking plate 6 and the reset plate 7 are perpendicularly arranged on two adjacent sides of the bottom plate 1. Correspondingly, the reset pushing surface 71 and the reset blocking surface 64 are inclined at 45°. This vertical layout can effectively utilize the space and provide stable support for subsequent reset pushing actions. When the reset plate 7 pushes the self-locking plate 6, the 45° inclined surface design can effectively decompose the horizontal thrust of the reset button into a force that can both push the self-locking plate 6 to move horizontally and maintain stable contact between the two, ensuring efficient and smooth force transmission. The 45° inclined pushing surface and blocking surface provide the optimal force transmission angle, making the reset action more labor-saving, accurate and reliable.

[0055] In one embodiment: the outer end surfaces of the first gear button 2, the second gear button 3, the reset button 4 and the self-locking button 5 are covered with keycaps 9. The keycaps 9 are square-shaped, and the four keycaps 9 are distributed in a cross shape.

[0056] In this embodiment: the keycaps 9 are square-shaped, and the four keycaps 9 are distributed in a cross shape, making the visual effect of the entire switch more unified and coordinated.

[0057] In one embodiment: the outer cylindrical surfaces of the first gear button 2, the second gear button 3, the reset button 4 and the self-locking button 5 are sleeved with a reset spring 91. The reset spring 91 pushes the keycap 9 to reset. When the button is pressed, the reset spring 91 is compressed. When the button is released, the elastic force of the reset spring 91 will push the keycap 9 to move upward, thereby带动the entire button back to its initial position. Ensure that the button can quickly return to the state of preparing for the next operation after the operation is completed.

[0058] In one embodiment: the bottom plate 1 is installed inside the housing 10. The housing 10 is a frame structure with openings at both the upper and lower ends. A partition 101 is horizontally arranged inside the housing 10. Avoidance areas 102 are provided on the partition 101 corresponding to the positions of the first gear button 2, the second gear button 3, the reset button 4 and the self-locking button 5.

[0059] In this embodiment: the bottom plate 1 is installed inside the housing 10. The housing 10 serves as an external protective structure to protect the internal precision mechanical components from the external environment and provides an installation interface. At the same time, the partition 101 plays a role in supporting, separating and guiding the movement of the buttons, and the avoidance areas 102 reserve space for the up and down movement of the buttons. In addition, the partition 101 helps to increase the structural stability of the entire switch and ensure that the various buttons do not interfere with each other during movement.

[0060] In summary, the core working principle of this rectangular key switch lies in the ingenious combination of the cross-shaped button layout and the precise mechanical locking and reset mechanisms.

[0061] When the user presses the first - gear button 2 or the second - gear button 3, the corresponding lock rod moves accordingly. Under the push of the first spring 63, the lock hook on the self - locking plate 6 will quickly engage with the lock rod, achieving self - locking of the button. The inverted - triangle lock - rod design and the extrusion inclined plane 65 on the lock hook ensure the smoothness and precision of the locking process. Once a button is locked, the optional inter - locking plate 8 will prevent the misoperation of another similar button through the action of its inter - locking inclined plane 81, enhancing the reliability of the system.

[0062] When unlocking is required, the user presses the reset button 4. The reset lock rod 41 of the reset button 4 pushes the reset plate 7 to move. The reset push surface 71 on the reset plate 7 and the reset stop surface 64 on the self - locking plate 6 squeeze against each other, forcing the self - locking plate 6 to move, disengaging the lock hook from the lock rod, and achieving unlocking. Subsequently, the reset spring 91 sleeved on the outer cylindrical surface of the button will push the button and the keycap 9 back to the initial position to complete the reset.

[0063] Among them, the entire switch component is installed on the bottom plate 1 and is protected and supported by the outer shell 10 and the internal partition 101, ensuring structural stability and integration convenience. This innovative design not only fundamentally solves the pain points of the existing key switches with dull appearance and single layout, provides higher design freedom and space utilization rate through the "field" - shaped layout; at the same time, its internal precise mechanical locking and reset mechanism ensures the high - efficiency, reliability and smooth operation of function realization, greatly enhancing the practical value and user experience of the product, so it can be widely promoted and used.

[0064] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0065] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above - mentioned embodiments. What is described in the above - mentioned embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A rectangular piano key switch, characterized in that: Comprising: A bottom plate (1), on which four mounting openings (11) are arranged in a "field" shape distribution; A first - gear button (2), a second - gear button (3), a reset button (4) and a self - locking button (5), which are respectively installed in the mounting openings (11); The first - gear button (2) and the second - gear button (3) are distributed on the same side of the bottom plate (1). The first - gear button (2) and the second - gear button (3) are respectively provided with a first - gear lock rod (21) and a second - gear lock rod (31), and the lock rods extend outwards; A self - locking plate (6), on which a first lock hook (61) and a second lock hook (62) are arranged corresponding to the positions of the first - gear lock rod (21) and the second - gear lock rod (31) for cooperating with the first - gear lock rod (21) and the second - gear lock rod (31); A first spring (63), which is arranged between the self - locking plate (6) and the bottom plate (1), and the first spring (63) pushes the self - locking plate (6) to move in the direction of meshing with the lock rod; The reset button (4) is arranged on the side adjacent to the first - gear button (2) and the second - gear button (3); A reset plate (7), a reset plate (7) is arranged on one side of the reset button (4). A reset lock rod (41) extending outwards is arranged on the side wall of the reset button (4), and the reset lock rod (41) pushes the reset plate (7) to move; A reset push surface (71) is arranged on the reset plate (7), and a reset stop surface (64) is arranged on the self - locking plate (6). The reset plate (7) and the reset stop surface (64) are mutually extruded through the reset push surface (71) to push the self - locking plate (6) to move, thereby releasing the first - gear lock rod (21) or the second - gear lock rod (31).

2. A rectangular piano key switch according to claim 1, characterized in that: The first - gear lock rod (21), the second - gear lock rod (31) and the reset lock rod (41) are all set as an inverted triangle, and an arc - shaped guiding convex surface (32) is arranged at the lower end of the first - gear lock rod (21), the second - gear lock rod (31) and the reset lock rod (41).

3. A rectangular piano key switch according to claim 1, characterized in that: On the side of the first lock hook (61) and the second lock hook (62) facing the first - gear lock rod (21) and the second - gear lock rod (31), extrusion inclined surfaces (65) are respectively arranged.

4. A rectangular piano key switch according to claim 1, characterized in that: An inter - locking plate (8) is further installed on the outer side of the self - locking plate (6). Inter - locking inclined surfaces (81) corresponding to the first - gear lock rod (21) and the second - gear lock rod (31) are arranged on the inter - locking plate (8). The first - gear lock rod (21) or the second - gear lock rod (31) and the inter - locking inclined surface (81) are mutually extruded to push the inter - locking plate (8) to move.

5. A rectangular piano key switch according to claim 1, characterized in that: The self - locking plate (6) and the reset plate (7) are perpendicularly arranged on two adjacent sides of the bottom plate (1). Correspondingly: the reset push surface (71) and the reset stop surface (64) are arranged at an inclined 45°.

6. A rectangular piano key switch according to claim 1, characterized in that: The outer end surfaces of the first - gear button (2), the second - gear button (3), the reset button (4) and the self - locking button (5) are covered with key caps (9). The key caps (9) are square - shaped, and the four key caps (9) are arranged in a "field" shape distribution.

7. A rectangular piano key switch according to claim 1, characterized in that: The outer cylindrical surfaces of the first - gear button (2), the second - gear button (3), the reset button (4) and the self - locking button (5) are sleeved with reset springs (91), and the reset springs (91) push the key caps (9) to reset.

8. A rectangular piano key switch according to claim 1, characterized in that: The base plate (1) is installed inside the outer shell (10). The outer shell (10) is a frame structure with openings at both the top and bottom. A partition (101) is horizontally arranged inside the outer shell (10). A clearance area (102) is provided on the partition (101) corresponding to the positions of the first gear button (2), the second gear button (3), the reset button (4), and the self-locking button (5).

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