Optimized structure of inner hole of scissor foot

Abstract

The utility model discloses a kind of inner hole optimization structures of scissor feet, including scissor foot mechanism and support base plate, the scissor foot mechanism includes outer scissor foot and inner scissor foot hinged in outer scissor foot, one end of the inner scissor foot is equipped with inner scissor foot shaft, first snap hook portion is equipped on the support base plate with the inner scissor foot shaft clamping, the inner scissor foot shaft with the first snap hook portion clamping position side is broken on the inner scissor foot Hole, for reducing the strength of the inner scissor foot shaft and increasing its toughness. The design scheme presented by the utility model, increase broken hole to reduce the strength of shaft and increase toughness on the side of inner scissor foot towards inner scissor foot shaft, so that shaft can have deformation amount when stress, thereby producing avoidance space, to avoid directly bearing iron plate snap hook cutting, can reduce structural damage when assembling, to ensure the smoothness when using overall mechanism.

Description

Technical Field

[0001] This utility model belongs to the field of scissor-type feet, specifically an optimized inner hole structure for scissor-type feet. Background Technology

[0002] The "scissor-switch" key design is a special key structure that provides a stable, even, and quiet typing experience.

[0003] In traditional scissor-leg mechanisms, the scissor legs are assembled onto a metal plate by engaging the outer shear shaft of the scissor leg with a hook on the upper side of the plate, then pressing down on the lower scissor leg, followed by engaging the inner shear shaft of the scissor leg with a hook on the lower side of the plate. Because the process of pressing in the inner shear shaft involves an interference fit, and because the scissor legs are made of plastic with significantly lower strength than the metal plate, the inner shear shaft is prone to being cut during assembly. This over-cutting and burrs affect the smoothness of the overall mechanism during use, failing to meet the increasingly demanding needs of users. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an optimized structure for the inner hole of a scissor-type foot.

[0005] The technical solution adopted by this utility model is as follows: an optimized inner hole structure for a scissor foot, including a scissor foot mechanism and a supporting base plate. The scissor foot mechanism includes an outer scissor foot and an inner scissor foot hinged within the outer scissor foot. One end of the inner scissor foot is provided with an inner scissor foot shaft. The supporting base plate is provided with a first hook portion that engages with the inner scissor foot shaft. A hole is provided on the inner scissor foot at the position where the inner scissor foot shaft engages with the first hook portion, which is used to reduce the strength of the inner scissor foot shaft and increase its toughness.

[0006] In a preferred embodiment, there are two holes, symmetrically distributed at both ends of the inner scissor foot shaft, and the end of the inner scissor foot facing the inner scissor foot shaft forms a T-shaped structure with it.

[0007] In a preferred embodiment, there are two first hook portions, which are symmetrically engaged at both ends of the inner scissor foot shaft, and the two holes are located in the opposite direction of the two first hook portions.

[0008] In a preferred embodiment, the inner scissor leg and the inner scissor leg shaft are integrally molded plastic structures.

[0009] In a preferred embodiment, the end of the first hook portion is provided with an arc-shaped guide surface.

[0010] In a preferred embodiment, one end of the outer scissor leg is provided with an outer scissor leg shaft, and the support base plate is also provided with a second hook portion that is adapted to and engages with the outer scissor leg shaft.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0012] This invention adds a perforation hole on the side of the inner scissor foot facing the inner scissor foot shaft to reduce the strength of the shaft and increase its toughness. When the inner scissor foot shaft is assembled with the first hook part, there can be local deformation, thereby reducing structural damage. During assembly, it can avoid directly bearing the cutting of the first hook part. While saving the overall manufacturing cost, it can also ensure the smoothness of the overall mechanism during use. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0014] Figure 2 for Figure 1 A simplified diagram of the enlarged structure at point A in the middle;

[0015] Figure 3 This is a three-dimensional structural diagram of the entire utility model viewed from another angle;

[0016] Figure 4 This is a simplified schematic diagram of the planar structure of the prior art;

[0017] Figure 5 This is a simplified structural diagram illustrating the assembly of the scissor legs and the supporting base plate.

[0018] Marked in the image:

[0019] 100 - Scissor mechanism; 200 - Support base plate;

[0020] 110 - Inner scissor leg, 120 - Outer scissor leg;

[0021] 210 - First hook part, 220 - Second hook part;

[0022] 111-Inner scissor foot shaft, 112-Break hole;

[0023] 211-Arc-shaped guide surface. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] 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.

[0027] An optimized internal hole structure for scissor-type feet, referring to... Figure 1-5 The system includes a scissor-leg mechanism 100 and a support base plate 200. The scissor-leg mechanism 100 includes an outer scissor leg 120 and an inner scissor leg 110 hinged within the outer scissor leg 120. One end of the inner scissor leg 110 is provided with an inner scissor leg shaft 111. The support base plate 200 is provided with a first hook portion 210 that engages with the inner scissor leg shaft 111. A hole 112 is provided on the inner scissor leg 110 on one side of the engagement position between the inner scissor leg shaft 111 and the first hook portion 210 to reduce the strength of the inner scissor leg shaft 111. To increase its strength and toughness, a perforation 112 is added to the side of the inner scissor foot 110 facing the inner scissor foot shaft 111 to reduce the strength of the inner scissor foot shaft 111 and increase its toughness. When the inner scissor foot shaft 111 is assembled with the first hook part 210, there can be local deformation to reduce structural damage. During assembly, the scissor foot shaft 111 can avoid being directly cut by the first hook part 210. While saving the overall manufacturing cost, it can also ensure the smoothness of the overall mechanism (i.e. the structure subsequently assembled after the button) during use.

[0028] In this embodiment, please refer to Figure 1 and Figure 2 As shown, there are two holes 112, symmetrically distributed at both ends of the inner scissor foot shaft 111. The end of the inner scissor foot 110 facing the inner scissor foot shaft 111 forms a T-shaped structure with it. There are two first hook parts 210, symmetrically hooked at both ends of the inner scissor foot shaft 111. The two holes 112 are located in the opposite direction of the two first hook parts 210. The two symmetrical holes 112 make the force on both sides of the inner scissor foot shaft 111 uniform and the deformation more coordinated. The T-shaped structure helps to disperse stress, further optimize the toughness and deformation capacity of the inner scissor foot shaft 111, and improve the structural stability.

[0029] In this embodiment, the inner scissor foot 110 and the inner scissor foot shaft 111 are integrally molded plastic structures. Integral molding simplifies the manufacturing process, reduces production costs, and at the same time ensures the integrity and consistency of the inner scissor foot 110 and the inner scissor foot shaft 111, improving the strength and durability of the structure. Moreover, the elasticity of the plastic material itself can also accommodate the local deformation of the inner scissor foot shaft 111 during assembly.

[0030] In this embodiment, please refer to Figure 2 As shown, the end of the first hook portion 210 is provided with an arc-shaped guide surface 211. The arc-shaped guide surface 211 provides a smooth guiding effect during assembly, reduces the impact and friction on the inner scissor foot shaft 111, further prevents damage to the inner scissor foot shaft 111, and improves assembly efficiency.

[0031] In this embodiment, one end of the outer scissor foot 120 is provided with an outer scissor foot shaft, and the support base plate 200 is also provided with a second hook part 220 that is adapted to and engaged with the outer scissor foot shaft.

[0032] Please refer to Figure 5 As shown, the current assembly process of the scissor foot mechanism 100 and the support base plate 200 is as follows: First, the outer scissor foot shaft slides into the second hook portion 220 on the support base plate 200 and engages with it. Then, the inner scissor foot shaft 111 fully contacts the first hook portion 210 and overlaps the edge of the first hook portion 210. Then, pressure is applied to press the position of the inner scissor foot shaft 111 so that the inner scissor foot shaft 111 is engaged inside the first hook portion 210 and rotates smoothly.

[0033] 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 internal hole structure for scissor-leg mechanisms, comprising a scissor-leg mechanism and a supporting base plate, characterized in that, The scissor leg mechanism includes an outer scissor leg and an inner scissor leg hinged within the outer scissor leg. One end of the inner scissor leg is provided with an inner scissor leg shaft. The support base plate is provided with a first hook portion that engages with the inner scissor leg shaft. A hole is provided on the inner scissor leg on one side of the engagement position between the inner scissor leg shaft and the first hook portion, which is used to reduce the strength of the inner scissor leg shaft and increase its toughness.

2. The optimized inner hole structure of the scissor-foot as described in claim 1, characterized in that: There are two holes, symmetrically distributed at both ends of the inner scissor foot shaft, and the end of the inner scissor foot facing the inner scissor foot shaft forms a T-shaped structure with it.

3. The optimized inner hole structure of the scissor-foot as described in claim 2, characterized in that: There are two first hook parts, which are symmetrically engaged at both ends of the inner scissor foot shaft, and the two holes are located in the opposite direction of the two first hook parts.

4. The optimized inner hole structure of the scissor-foot as described in claim 3, characterized in that: The inner scissor legs and the inner scissor leg shaft are integrally molded plastic structures.

5. The optimized inner hole structure of the scissor-type foot as described in claim 1, characterized in that: The end of the first hook portion is provided with an arc-shaped guide surface.

6. The optimized inner hole structure of the scissor-foot as described in claim 1, characterized in that: One end of the outer scissor leg is provided with an outer scissor leg shaft, and the support base plate is also provided with a second hook portion that is adapted to and engages with the outer scissor leg shaft.

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