Nut

Abstract

The utility model discloses a nut which comprises a main body part and a concave part formed at one axial end of the main body part, and the concave part extends inwards in the radial direction and extends towards the other end of the main body part in the axial direction at the same time. According to the nut disclosed by the utility model, the concave part is arranged at the end part, so that a cylindrical sponge electrode can be better mounted from top to bottom, and meanwhile, the bottom position of the concave part can play a certain role in supporting the middle position of the sponge electrode, so that the sponge electrode can be better prevented from falling off after being worn on the head; and the concave part can better preserve the liquid when the conductive liquid is dripped, so that the conductive liquid is prevented from overflowing to other places of the equipment due to too high dripping speed.

Description

Technical Field

[0001] This utility model belongs to the field of hardware technology, specifically relating to a nut that is easy to install, disassemble, tighten and open when used with a sponge electrode. Background Technology

[0002] Currently, nuts used to secure electrodes in brain-computer interface (BCI) devices are common mechanical parts that need to mate with a base to fasten common electrode components. Other common electrodes, such as conductive gels, gels, and sponge electrodes, often contain liquid components, requiring the nuts to have appropriate anti-slip treatment for easier electrode assembly and disassembly. A common approach to installing cylindrical sponge electrodes is to use a simple nut with a hole in the center, which makes it easy for the device to fall off after being worn and inconvenient to add conductive fluid to the sponge electrode. While some existing BCI devices also have bases, these present challenges in assembly and use, hindering effective sealing and waterproofing. Furthermore, many electrodes used for EEG acquisition and skin contact contain liquid components, thus placing higher demands on overall waterproofing, especially in delicate areas.

[0003] Therefore, in view of the above-mentioned technical problems, it is necessary to provide a nut for use with sponge electrodes that is easy to install, disassemble, tighten and loosen.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a nut that improves the safety of computer installation and use.

[0006] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0007] This utility model discloses a nut, which includes a main body and a recess formed at one axial end of the main body, the recess extending radially inward and axially toward the other end of the main body.

[0008] In one or more embodiments of the present invention, the nut further includes a brim portion formed at the other end of the main body portion and protruding radially outward.

[0009] In one or more embodiments of this utility model, the brim extends radially outward and axially away from the recess along the main body.

[0010] In one or more embodiments of this utility model, the outer diameter of the main body gradually decreases from the brim towards the recessed portion.

[0011] In one or more embodiments of the present invention, anti-slip threads are formed on the sidewall of the main body.

[0012] In one or more embodiments of the present invention, the anti-slip thread extends axially along the body portion between the brim portion and the recessed portion.

[0013] In one or more embodiments of the present invention, the threads of the nut are formed on the brim and at least part of the inner wall of the main body.

[0014] Compared with the prior art, the nut of this utility model has a recessed part at the end, which can better install the cylindrical sponge electrode from top to bottom. At the same time, the bottom of the recessed part can provide a certain support for the middle part of the sponge electrode, which can better prevent the sponge electrode from falling off after being worn. The recessed part can better retain the liquid when adding conductive liquid, preventing the conductive liquid from overflowing to other parts of the equipment due to excessive dripping speed. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a nut in one embodiment of the present invention;

[0017] Figure 2 This is a front view of the nut in one embodiment of the present invention;

[0018] Figure 3 This is a cross-sectional view of a nut in one embodiment of the present invention.

[0019] Explanation of key figure labels:

[0020] 100-Nut, 10-Main body, 11-Anti-slip thread, 111-Groove, 112-Raised strip, 20-Recessed part, 30-Brim part. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0022] like Figure 1-3 As shown, in one embodiment of the present invention, the nut 100 includes a main body 10 and a recess 20 formed at one axial end of the main body. The recess 20 extends radially inward and axially to the other end, thus forming a bowl-shaped structure at the end of the main body 10. This bowl-shaped structure (recessed portion 20) has the following advantages: it makes electrode installation more convenient. The nut 100 can be screwed onto the fixing base first. Since its top is a bowl shape that is wider at the top and narrower at the bottom, a sponge electrode with a diameter about 1mm larger than the diameter of the smaller bowl opening at the bottom but much smaller than the diameter of the top opening can be selected. In this case, the nut 100 can be screwed on first, and the sponge electrode can be installed directly into the nut 100 from top to bottom more conveniently. The bottom position of the recessed portion 20 is approximately at the middle height of the cylindrical sponge electrode, which can provide additional support for the sponge electrode. After the sponge electrode is filled with conductive liquid, it becomes soft, and the bowl shape at the bottom of the recessed portion 20 can better fix the sponge electrode, preventing the electrode from falling off and affecting the normal use of the EEG device. After the sponge electrode is installed and fixed, when adding conductive liquid with a dropper bottle, if the dripping speed is fast, the recessed portion 20 can retain the liquid, allowing the sponge electrode to fully absorb the liquid and preventing the conductive liquid from being wasted or overflowing to other parts of the device.

[0023] Furthermore, a brim 30 is provided at the other end of the main body 10. The brim 30 protrudes radially outward and can completely cover the base under the nut 100. Using the nut 100 can prevent the liquid in the sponge electrode from overflowing into the device, while allowing the squeezed conductive liquid to flow out of the device better, thus protecting the EEG acquisition device.

[0024] Preferably, the brim portion 30 extends radially outward and axially away from the recessed portion 20 along the main body portion 10. Therefore, the brim portion 30 extends obliquely downward, allowing the conductive liquid to continue flowing downward along its surface after reaching the brim portion 30, preventing the conductive liquid from accumulating on the surface and causing other hazards.

[0025] In this embodiment, the outer diameter of the main body 10 gradually decreases from the brim 30 toward the recess 20, so the nut 100 is shaped like a hat and has a more aesthetically pleasing overall shape.

[0026] like Figure 3 As shown, the threads on the nut 100 are formed on the inner wall of the cap brim 30 and part of the main body 10. It is conceivable that the specific area of ​​the threads can be set according to the actual situation, and this embodiment is not limited thereto.

[0027] In this embodiment, to improve the anti-slip effect, anti-slip threads 11 are provided on the side wall of the main body 10 to improve the contact effect when conductive liquid or other liquids adhere to the surface, and to avoid slippage that would prevent the screw from turning.

[0028] Furthermore, since the nut 100 operates in its circumferential direction, the anti-slip thread 11 is an axially extending vertical groove composed of spaced-apart grooves 111 and raised ribs 112. The two work together to form a rough surface, improving contact and friction. To increase the effective area, the anti-slip thread 11 covers the entire area of ​​the main body 10 between the cap brim 30 and the recessed portion 20. Therefore, regardless of where the action is applied to the main body 10, there is a corresponding anti-slip thread, preventing slippage.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A screw cap, characterized in that The nut further comprises a recess formed at one axial end of the body portion, the recess extending both radially inwardly and axially toward the other axial end of the body portion.

2. The screw cap of claim 1, wherein The nut further comprises a brim portion formed at the other axial end of the body portion, the brim portion extending radially outwardly.

3. The screw cap of claim 2, wherein The brim portion extends both radially outwardly and axially away from the recess.

4. The screw cap of claim 3, wherein An outer diameter of the body portion is tapered in a direction from the brim portion toward the recess.

5. The screw cap of claim 2, wherein Anti-slip threads are formed on a sidewall of the body portion.

6. The screw cap of claim 5, wherein The anti-slip threads extend axially along the body portion between the brim portion and the recess.

7. The screw cap of claim 2, wherein The threads of the nut are formed on an inner wall of the brim portion and at least a portion of the body portion.

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