Optimized structure of scissors foot keyboard
Patent Information
- Application Number
- CN202522477463.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-21
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-21
AI Technical Summary
Existing scissor-switch keyboards are prone to interference during assembly and have poor key feel, affecting the user experience.
A stepped contact surface is designed at the connection between the scissor foot shaft and the supporting iron plate, with the outer contact surface being larger than the inner contact surface. A guide slope is set between the outer and inner contact surfaces to optimize the assembly process of the scissor foot mechanism.
It improves the ease of assembly and key stability of scissor-switch keyboards, reduces the risk of assembly interference and key jamming, and enhances the user experience.
Smart Images

Figure CN224934665U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of keyboard technology, specifically an optimized structure for a scissor-switch keyboard. Background Technology
[0002] In existing keyboard structures with scissor-switch mechanisms, the scissor-switch mechanism and the support plate are typically connected via a latch. In traditional designs, please refer to... Figure 4 As shown, the contact surface between the scissor-switch switch and the metal plate hook is a single plane with a small gap. This design has the following problems: First, if the scissor-switch switch surface is uneven or has burrs, interference can easily occur during assembly, making assembly difficult; second, when the keycap is pressed, excessive friction on the contact surface may cause a poor feel or sticking, affecting the user experience and failing to meet the growing needs of users. Utility Model Content
[0003] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an optimized structure for a scissor-switch keyboard.
[0004] The technical solution adopted by this utility model is as follows: an optimized structure for a scissor-switch keyboard, including a scissor-switch mechanism and a supporting iron plate. The scissor-switch mechanism includes an outer scissor-switch leg and an inner scissor-switch leg that cooperate with each other. The outer scissor-switch leg and the inner scissor-switch leg are respectively provided with an outer scissor-switch shaft and an inner scissor-switch shaft. One end of the outer scissor-switch shaft and the inner scissor-switch shaft are respectively provided with a stepped contact surface on the outer scissor-switch leg and the inner scissor-switch leg. The contact surface includes an outer contact surface and an inner contact surface arranged sequentially from the outside to the inside. The lateral distance from the outer contact surface to the other end of the outer scissor-switch shaft and the inner scissor-switch shaft is greater than the lateral distance from the inner contact surface to the other end of the outer scissor-switch shaft and the inner scissor-switch shaft.
[0005] In a preferred embodiment, the supporting iron plate is provided with a hook portion that is adapted to and engages with the outer scissor foot shaft and the inner scissor foot shaft, and the outer contact surface and the inner contact surface are arranged opposite to the hook portion.
[0006] In a preferred embodiment, the gap between the hook portion and the outer contact surface is greater than the gap between the hook portion and the inner contact surface.
[0007] In a preferred embodiment, a guide ramp is provided between the outer contact surface and the inner contact surface.
[0008] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0009] The original horizontal contact surface is divided into two stepped surfaces. The outer contact surface has a larger gap, which serves as a guide during assembly, making it easier for the scissor foot shaft to slide into the hook, thus improving the convenience and efficiency of assembly. The inner contact surface has a smaller gap, which is used to fix the position of the scissor foot, reduce wobbling, and ensure the stability and smooth feel when the button is pressed. By reducing the contact surface area, the risk of interference caused by molding errors or burrs is reduced, the defect rate is lowered, and the product reliability is improved. Attached Figure Description
[0010] Figure 1 This is a three-dimensional structural diagram of the entire utility model;
[0011] Figure 2 for Figure 1 A simplified diagram of the enlarged structure at point A in the middle;
[0012] Figure 3 This is a simplified schematic diagram of the three-dimensional structure of the present invention after assembly with the supporting iron plate;
[0013] Figure 4 This is a simplified planar structural diagram of the combination of a scissor-foot mechanism and a supporting iron plate in the prior art.
[0014] Figure 5 This is a simplified planar structural diagram of the present invention after assembly with the supporting iron plate.
[0015] Marked in the image:
[0016] 100 - Scissor mechanism; 200 - Support plate;
[0017] 110 - Inner scissor foot, 120 - Outer scissor foot, 130 - Inner contact surface, 140 - Outer contact surface, 150 - Outer scissor foot shaft, 160 - Guide slope;
[0018] 210-Hook section. Detailed Implementation
[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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.
[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0022] An optimized structure for a scissor-switch keyboard, referring to... Figures 1-5 The system includes a scissor-leg mechanism 100 and a supporting iron plate 200. The scissor-leg mechanism 100 includes an outer scissor leg 120 and an inner scissor leg 110 that cooperate with each other. An outer scissor leg shaft 150 and an inner scissor leg shaft are respectively provided on the outer scissor leg 120 and the inner scissor leg 110. One end of the outer scissor leg shaft 150 and the inner scissor leg shaft has a stepped contact surface on the outer scissor leg 120 and the inner scissor leg 110, respectively. The contact surfaces include an outer contact surface 140 and an inner contact surface 130 arranged sequentially from the outside to the inside. The lateral distance from the outer contact surface 140 to the other end of the outer scissor leg shaft 150 and the inner scissor leg shaft is greater than the lateral distance from the inner contact surface 130 to the other end of the outer scissor leg shaft 150 and the inner scissor leg shaft. The supporting iron plate 200... The 00 is equipped with a hook portion 210 that is adapted to engage with the outer scissor foot shaft 150 and the inner scissor foot shaft. The outer contact surface 140 and the inner contact surface 130 are arranged opposite to the hook portion 210, dividing the original horizontal contact surface into two stepped small surfaces. The outer contact surface 140 has a larger gap, which plays a guiding role during assembly, making it easier for the scissor foot shaft to slide into the hook portion 210, thus improving the convenience and efficiency of assembly. The inner contact surface 130 has a smaller gap, which is used to fix the position of the scissor foot, reduce shaking, and ensure the stability and smooth feel when the button is pressed. By reducing the contact surface area, the risk of interference caused by molding errors or burrs is reduced, the defect rate is reduced, and the product reliability is improved.
[0023] In addition, the aforementioned design, which reduces some of the contact surface, can further reduce the material cost during the manufacturing of the scissor mechanism 100.
[0024] Specifically, the gap between the hook portion 210 and the outer contact surface 140 is greater than the gap between the hook portion 210 and the inner contact surface 130. The above design optimizes the guiding and fixing effect during the assembly process. The large gap of the outer contact surface 140 facilitates insertion, while the small gap of the inner contact surface 130 reduces shaking and improves the feel of the button when in use.
[0025] In this embodiment, please refer toFigure 2 As shown, a guide slope 160 is provided between the outer contact surface 140 and the inner contact surface 130. By providing a guide slope 160 between the outer contact surface 140 and the inner contact surface 130, the assembly operation is further simplified, friction and resistance are reduced, the scissor foot shaft can be more smoothly engaged in the hook part 210, and damage to the scissor foot shaft during the assembly process is also reduced.
[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An optimized structure for a scissor-switch keyboard, comprising a scissor-switch mechanism and a supporting iron plate, characterized in that, The scissor leg mechanism includes an outer scissor leg and an inner scissor leg that cooperate with each other. The outer scissor leg and the inner scissor leg are respectively provided with an outer scissor leg shaft and an inner scissor leg shaft. One end of the outer scissor leg shaft and the inner scissor leg shaft are respectively provided with a stepped contact surface. The contact surface includes an outer contact surface and an inner contact surface arranged sequentially from the outside to the inside. The lateral distance from the outer contact surface to the other end of the outer scissor leg shaft and the inner scissor leg shaft is greater than the lateral distance from the inner contact surface to the other end of the outer scissor leg shaft and the inner scissor leg shaft.
2. The optimized structure of the scissor-switch keyboard as described in claim 1, characterized in that: The supporting iron plate is provided with a hook portion that is adapted to and engages with the outer scissor foot shaft and the inner scissor foot shaft, and the outer contact surface and the inner contact surface are arranged opposite to the hook portion.
3. The optimized structure of the scissor-switch keyboard as described in claim 2, characterized in that: The gap between the hook portion and the outer contact surface is greater than the gap between the hook portion and the inner contact surface.
4. The optimized structure of the scissor-switch keyboard as described in claim 3, characterized in that: A guide slope is provided between the outer contact surface and the inner contact surface.
