Balancing rod keycap structure capable of reducing noise

Abstract

The utility model discloses a balance rod keycap structure capable of reducing noise, which comprises a keycap and two balance rods, the number of the balance rods is two, the balance rods are symmetrically arranged below the keycap, and each balance rod comprises a cross rod part and hook parts integrally arranged at the two ends of the cross rod part; the device further comprises a base plate which is arranged below the balance rod, the two sides of the base plate extend upwards to form positioning plates, limiting holes are formed in the positioning plates in the length direction of the positioning plates, the hook portion of the balance rod is connected with the limiting holes in a pivoted mode, the sides, away from each other, of the two positioning plates are provided with bent plates bent upwards on the base plate, and the bent plates are connected with the hook portion of the balance rod in a pivoted mode. One end of the folded plate abuts against the balance rod to form interference. According to the utility model, the folded plate which is bent upwards and is in interference fit with the balance rod is designed on the substrate, and the elastic characteristic of the folded plate after being bent is utilized, so that the internal gap between the balance rod and the limiting hole can be reduced to zero, and meanwhile, the hand feeling around the keycap is not influenced by interference and jamming, and the effect of reducing noise can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of keyboards, in particular to a balance bar key cap structure capable of reducing noise. Background Art

[0002] Keyboards are currently very common input devices, usually used with electronic devices such as desktop computers, laptops, smart phones or tablets, etc. Currently, in order to make the keyboard keys more evenly transmit force after being pressed, a balance bar component is usually installed inside the keycap, and the balance bar transmits the force to the surrounding of the keycap to achieve a good feel.

[0003] When assembling existing keys, one side of the balance bar is fixed on the keycap, and the other side is inserted into the limit hole of the lower substrate. When the keycap is pressed, the balance bar slides back and forth in the limit hole. In order to slide smoothly, a certain gap is usually required to prevent interference and jamming. However, it is precisely these gaps that cause the balance bar to hit the substrate during use, resulting in excessive noise, which cannot meet the increasingly comprehensive usage needs of users. Utility Model Content

[0004] In order to overcome the problems of the prior art, the utility model aims to provide a balance bar keycap structure which can reduce noise.

[0005] The technical solution adopted by the utility model is as follows: a balance bar keycap structure capable of reducing noise, comprising a keycap and a balance bar, wherein the balance bar is two and symmetrically arranged below the keycap, the balance bar comprising a cross bar portion and hook portions integrally arranged at both ends of the cross bar portion; and a base plate is also included, which is arranged below the balance bar, and both sides of the base plate extend upward to form positioning plates, the positioning plates are provided with limiting holes along their length direction, the balance bar hook portion can be pivotally connected to the limiting holes, and an upwardly bent folding plate is provided on the base plate on the separated side of the two positioning plates, and one end of the folding plate abuts against the balance bar to form interference.

[0006] In a preferred embodiment, a scissor foot is further included, and the scissor foot is arranged between the key cap and the substrate.

[0007] In a preferred embodiment, it also includes a conductive film connected to the substrate, and the conductive film is provided with through grooves for the scissor legs and the positioning plate to pass through.

[0008] In a preferred embodiment, an installation space for accommodating the balance bar is provided on the back of the keycap, and a plurality of fixing ribs with notches are provided on the bottom wall of the keycap, and the balance bar can be pivotally buckled in the notches of the keycap.

[0009] In a preferred embodiment, the key cap and the opposite ends of the substrate are respectively provided with connecting ribs for connecting the scissor legs.

[0010] In a preferred embodiment, the upper end surface of the balance rod abuts against the upper end surface of the limiting hole.

[0011] To sum up, due to the adoption of the above-mentioned technical scheme, the beneficial effect of the utility model is as follows: the utility model designs a folding plate on the base plate that bends upward and interferes with the balance bar, and utilizes the elastic characteristics of the folding plate itself after bending, so as to reduce the internal gap between the balance bar and the limit hole to zero while not affecting the feel around the keycap due to interference and jamming problems. It can also reduce noise while ensuring the normal use of the keys, thereby improving the practicality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall explosion three-dimensional structure of the utility model;

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the substrate in the utility model;

[0014] Figure 3 It is a schematic diagram of the top plan structure of the base plate and the balance bar combination in the utility model;

[0015] Figure 4 It is a schematic diagram of the cross-sectional plan structure of the base plate and the balance bar combination in the utility model;

[0016] Figure 5 It is a schematic diagram of the overall planar structure of the utility model.

[0017] Markings in the figure: 1-key cap, 2-balance bar, 3-scissor foot, 4-conductive film, 5-substrate, 51-positioning plate, 52-folding plate, 53-limiting hole, 54-connecting rib. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] A balance bar keycap structure capable of reducing noise, referring to Figure 1-5, including a keycap 1 and a balance bar 2, the balance bar 2 is two and symmetrically arranged below the keycap 1, the balance bar 2 includes a crossbar portion and hook portions integrally arranged at both ends of the crossbar portion; it also includes a base plate 5, which is arranged below the balance bar 2, and both sides of the base plate 5 extend upward to form positioning plates 51, and the positioning plates 51 are provided with limited holes 53 along their length direction. The hook portion of the balance bar 2 can be pivotally connected to the limited hole 53, and an upwardly bent folding plate 52 is provided on the base plate 5 on the separated side of the two positioning plates 51, and one end of the folding plate 52 abuts against the balance bar 2 to form interference, and the upper end surface of the balance bar 2 abuts against the upper end surface of the limited hole 53. The folding plate 52 that is bent upward and interferes with the balance bar 2 is designed on the base plate 5. By utilizing the elastic characteristics of the folding plate 52 after bending, the internal gap between the balance bar 2 and the limited hole 53 can be reduced to zero without affecting the feel of the keys around the keys due to interference and jamming problems. While ensuring the normal use of the keys, it can also reduce noise, which is worthy of promotion.

[0020] The substrate 5 is preferably made of stainless steel, but may also be an aluminum plate, a galvanized iron plate, etc., which is not limited here.

[0021] Furthermore, it also includes scissor feet 3, which are arranged between the keycap 1 and the substrate 5. The opposite ends of the keycap 1 and the substrate 5 are respectively provided with connecting ribs 54 for connecting the scissor feet 3. Through the added scissor feet 3 structure, the user can get a good and smooth feel no matter where the key is pressed, and the silent effect of pressing the key can be additionally improved.

[0022] Among them, the scissor foot 3 is a commonly used accessory in existing keyboards, and the specific structure is not explained again.

[0023] Furthermore, it also includes a conductive film 4, which is connected to the substrate 5. The conductive film 4 is provided with a through slot for the scissor legs 3 and the positioning plate 51 to pass through, wherein a touch switch is integrated on the conductive film 4.

[0024] Furthermore, an installation space is provided on the back side of the keycap 1 to accommodate the balance bar 2, and a plurality of fixed ribs with grooves are provided on the bottom wall of the keycap 1 (not shown in the figure). The balance bar 2 can be pivotally buckled in the grooves of the keycap 1. The fixed ribs can assist in locating the installation position of the balance bar 2 and can also play an auxiliary guiding role in the pivoting of the balance bar 2.

[0025] It should be noted that the above design is mainly used in special long keys and space keys, but is not limited to the above keys.

[0026] To summarize, a folding plate 52 is designed on the substrate 5 to bend upward and interfere with the balance bar 2. By utilizing the elastic properties of the folding plate 52 after bending, the internal gap between the balance bar 2 and the limiting hole 53 can be reduced to zero without affecting the feel of the keycap 1 around it due to interference and jamming problems. It can also reduce noise while ensuring the normal use of the keys.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A balance bar keycap structure capable of reducing noise, characterized in that: include: keycap; Two balancing bars are symmetrically arranged below the keycaps, and the balancing bars include a crossbar portion and hook portions integrally arranged at both ends of the crossbar portion; A base plate is arranged below the balance bar, and positioning plates are extended upward on both sides of the base plate. The positioning plates are provided with limiting holes along their length direction, and the hook of the balance bar is pivotally connected to the limiting holes. A folding plate bent upward is provided on the base plate on the separated side of the two positioning plates, and one end of the folding plate abuts against the balance bar to form interference.

2. A balance bar keycap structure capable of reducing noise as claimed in claim 1, characterized in that: It also includes scissor feet, which are arranged between the key cap and the substrate.

3. A balance bar keycap structure capable of reducing noise as claimed in claim 2, characterized in that: It also includes a conductive film connected to the substrate, and the conductive film is provided with through slots for the scissor legs and the positioning plate to pass through.

4. The noise-reducing balance bar keycap structure according to claim 1, characterized in that: The back of the keycap is provided with an installation space for accommodating the balance bar, and the bottom wall of the keycap is provided with a plurality of fixing ribs with notches, and the balance bar can be pivotally buckled in the notches of the keycap.

5. The noise-reducing balance bar keycap structure according to claim 2, characterized in that: The key cap and the opposite ends of the base plate are respectively provided with connecting ribs for connecting the scissor legs.

6. The noise-reducing balance bar keycap structure according to claim 1, characterized in that: The upper end surface of the balance rod abuts against the upper end surface of the limiting hole.

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