Brain-computer interface probe adjusting mechanism
By designing a brain-computer interface probe adjustment mechanism, using the combination of fine adjustment module and coarse adjustment module, high-precision adjustment of the probe is achieved, solving the problem of insufficient accuracy in traditional technology, and improving the stability and accuracy of neural signal acquisition.
Patent Information
- Application Number
- CN202422611475.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-28
AI Technical Summary
Traditional brain-computer interface probe insertion technology has shortcomings in control accuracy, making it difficult to achieve high-precision positioning and small-scale movement adjustments.
A brain-computer interface probe adjustment mechanism is designed, including a fine adjustment module and a rough adjustment module. Through the transmission connection between the water droplet transmission ratchet and the transmission arm, the precise adjustment of the probe connection seat is achieved, and the coaxial rotation of the transmission ratchet and the threaded portion is combined to improve the adjustment accuracy.
The adjustment accuracy of the probe connection base is improved, high-precision insertion of the probe and small-scale movement adjustment are achieved, and the stability and accuracy of neural signal acquisition are improved.
Smart Images
Figure CN223136863U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of brain-computer interface equipment, and more specifically to a brain-computer interface probe adjustment mechanism. Background Art
[0002] In the brain-computer interface system, the collection of EEG signals is a key step, and the position of the probe is directly related to the accuracy and stability of neural signal acquisition. Traditional probe insertion technology is insufficient in terms of control accuracy. With the development of technology, especially in neuroscience research, the positioning accuracy of the probe is increasingly required. There is an urgent need for a mechanical structure that can achieve higher-precision control to ensure that the probe can be accurately inserted into the target area and achieve a small range of movement adjustment during the research process. Utility Model Content
[0003] The technical problem to be solved by the utility model is how to improve the adjustment accuracy of the brain-computer interface probe.
[0004] The utility model solves the above-mentioned technical problems through the following technical means: a brain-computer interface probe adjustment mechanism, including a fine-tuning module, a second rotating shaft, a support platform, and a probe connecting seat. The second rotating shaft is rotatably connected to the support platform, and a threaded portion is formed on the second rotating shaft. The probe connecting seat is screwed together with the threaded portion, and the probe connecting seat is slidably matched with the support platform. The fine-tuning module includes a first rotating shaft, a transmission block, and a transmission arm. The transmission block is arranged in a water drop shape and is rotatably connected to the first rotating shaft. The transmission arm is rotatably connected to the third rotating shaft and can rotate with its axis as the rotating axis. The transmission block is transmission-connected to the second rotating shaft through the transmission arm, and can drive the second rotating shaft to rotate with its axis as the rotating axis.
[0005] By setting a transmission ratchet in a teardrop shape and enabling the transmission arm to be connected to the transmission ratchet, rotating the first rotating shaft can drive the transmission block to rotate the transmission ratchet through the transmission arm, and the transmission ratchet can drive the second rotating shaft to rotate, thereby driving the threaded part to rotate, and then driving the probe connecting seat to move vertically relative to the support platform. The transmission ratchet is coaxial with the threaded part, and the rotation range of the threaded part can be controlled by the scale of each rotation of the transmission ratchet, thereby improving the adjustment accuracy of the probe connecting seat connected to the brain-computer interface probe.
[0006] As a preferred technical solution, a transmission ratchet is fixedly connected to the second rotating shaft, one end of the transmission arm is against the transmission block, and the other end is formed with a jaw adapted to the transmission ratchet.
[0007] As a preferred technical solution, a coarse adjustment module is also included, and the coarse adjustment module includes a second turntable, and the second turntable is fixedly connected to the top of the second rotating shaft.
[0008] As a preferred technical solution, the probe connection base includes an adjustment block and a probe connection plate. The adjustment block is in threaded connection with the threaded portion, and the adjustment block is fixedly connected to the probe connection plate.
[0009] As a preferred technical solution, the probe connection base further includes a connection block, and the adjustment block is fixedly connected to the probe connection plate through the connection block.
[0010] As a preferred technical solution, a limiting groove adapted to the adjustment block is provided on the support table, and the adjustment block is in sliding fit with the inner wall of the limiting groove.
[0011] As a preferred technical solution, a third limiting block and a fourth limiting block are fixedly connected to the third rotating shaft, and the transmission arm is located between the third limiting block and the fourth limiting block.
[0012] As a preferred technical solution, the fine adjustment module further includes a first limiting block and a first turntable. The first limiting block is rotatably connected to the first rotating shaft. The transmission block is located on top of the first limiting block, and the first turntable is fixedly connected to the top of the first rotating shaft.
[0013] As a preferred technical solution, a second limiting block is fixedly connected to the support table, and the second limiting block is in rotational fit with the transmission ratchet wheel.
[0014] As a preferred technical solution, the planes where the tops of the transmission ratchet wheel, the transmission arm, and the transmission block are located are all in the same plane.
[0015] The beneficial effects of the present utility model are as follows:
[0016] (1) In the present utility model, through the water-drop-shaped transmission ratchet wheel and enabling the transmission arm to be in transmission connection with it, rotating the first rotating shaft can drive the transmission block to drive the transmission ratchet wheel to rotate through the transmission arm. Through the transmission ratchet wheel, the second rotating shaft can be driven to rotate, thereby driving the threaded portion to rotate, and further driving the probe connection base to move vertically relative to the support table. The transmission ratchet wheel and the threaded portion are coaxial, and the rotation range of the threaded portion can be controlled by the scale of each rotation of the transmission ratchet wheel, thereby improving the adjustment accuracy of the probe connection base connected to the brain-computer interface probe.
[0017] (2) In the present utility model, through the setting of the second turntable of the coarse adjustment module and the transmission block, transmission arm, and transmission ratchet wheel of the fine adjustment module, the rotation of the threaded portion can be coarsely adjusted and finely adjusted respectively, improving the adjustment efficiency. Description of the Drawings
[0018] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present utility model;
[0019] Figure 2 It is a schematic diagram of the structure of the probe connection base provided by an embodiment of the present utility model;
[0020] Figure 3 Schematic diagram of the fine-tuning module structure provided by the embodiment of the present utility model;
[0021] Reference numerals in the drawings: 1, base plate; 2, fine-tuning module; 21, first rotating shaft; 22, first limiting block; 23, driving block; 24, first turntable; 25, driving arm; 26, driving ratchet; 3, coarse-tuning module; 31, second rotating shaft; 32, second turntable; 33, second limiting block; 34, support platform; 341, limiting groove; 4, probe connection seat; 41, adjusting block; 42, connecting block; 43, probe connecting plate; 5, third rotating shaft; 51, third limiting block; 52, fourth limiting block. Specific embodiments
[0022] In order to make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0023] Refer to Figure 1 , Figure 2 , Figure 3 , a brain-computer interface probe adjusting mechanism, including a base plate 1, a fine-tuning module 2, a coarse-tuning module 3, a probe connection seat 4, and a third rotating shaft 5; the fine-tuning module 2 and the third rotating shaft 5 are arranged on the base plate 1, the coarse-tuning module 3 and the probe connection seat 4 are arranged outside the base plate 1, the coarse-tuning module 3 includes a second rotating shaft 31, a second turntable 32, a second limiting block 33, and a support platform 34. The support platform 34 is used to support the entire coarse-tuning module 3 and provide limits for the movement of the probe connection seat 4. The second rotating shaft 31 is rotatably connected to the support platform 34. A second limiting block 33 is fixedly connected to the support platform 34. The second limiting block 33 is in rotational cooperation with the second rotating shaft 31. The second turntable 32 is fixedly connected to the top of the second rotating shaft 31. Part or all of the second rotating shaft 31 is formed with a thread to form a threaded portion;
[0024] The probe connecting seat 4 includes an adjusting block 41, a connecting block 42, and a probe connecting plate 43. The adjusting block 41 is threadedly connected to the threaded portion. When the second turntable 32 is rotated, the second turntable 32 drives the second rotating shaft 31 and the threaded portion to rotate synchronously, and can drive the adjusting block 41 to move vertically relative to the support platform 34. To prevent the adjusting block 41 from rotating with the threaded portion, a limiting groove 341 that is compatible with the shape and size of the adjusting block 41 is provided on the support platform 34. The adjusting block 41 slides with the inner wall of the limiting groove 341. The adjusting block 41 is fixedly connected to the probe connecting plate 43 through the connecting block 42. The function of the connecting block 42 is to extend the probe connecting plate 43 to the outside of the limiting groove 341. One end of the connecting block 42 is fixedly connected to the adjusting block 41, and the other end is fixedly connected to the probe connecting plate 43. The probe connecting plate 43 can be connected to one or more brain-computer interface probes.
[0025] See also Figure 1 , Figure 3 The fine adjustment module 2 includes a first rotating shaft 21, a first limiting block 22, a transmission block 23, a first rotating disk 24, a transmission arm 25, and a transmission ratchet 26. The first rotating shaft 21 is fixedly connected to the bottom plate 1, and the transmission block 23 is rotatably connected to the first rotating shaft 21. The first limiting block 22 and the transmission block 23 are fixedly connected to the first rotating shaft 21. The first limiting block 22 is located at the bottom of the transmission block 23. The transmission block 23 is set in a teardrop shape, which is always against the transmission arm 25. The transmission arm 25 is rotatably connected to the third rotating shaft 5 and can rotate with its axis as the rotating axis. The transmission block 23 is transmission-connected to the second rotating shaft 31 through the transmission arm 25, and can drive the second rotating shaft 31 to rotate with its axis as the rotating axis. The transmission ratchet 26 is fixedly connected to the second rotating shaft 31, one end of the transmission arm 25 is against the transmission block 23, and the other end is formed with a jaw adapted to the transmission ratchet 26;
[0026] The transmission ratchet 26 is coaxial with the threaded portion, and the rotation range of the threaded portion can be controlled by the scale of each rotation of the transmission ratchet 26, which corresponds to the number of teeth of the transmission ratchet 26, thereby improving the adjustment accuracy of the probe connecting seat 4 connected to the brain-computer interface probe. The planes where the transmission ratchet 26, the transmission arm 25, and the top of the transmission block 23 are located are all in the same plane.
[0027] The third rotating shaft 5 is fixedly connected to the bottom plate 1 , and a third limiting block 51 and a fourth limiting block 52 are fixedly connected to the third rotating shaft 5 . The transmission arm 25 is located between the third limiting block 51 and the fourth limiting block 52 .
[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A brain-computer interface probe adjustment mechanism, characterized in that, The invention comprises a fine adjustment module (2), a second rotating shaft (31), a support platform (34), and a probe connecting seat (4); the second rotating shaft (31) is rotatably connected to the support platform (34); a threaded portion is formed on the second rotating shaft (31); the probe connecting seat (4) is screwed and connected to the threaded portion; the probe connecting seat (4) and the support platform (34) are slidably matched; the fine adjustment module (2) comprises a first rotating shaft (21), a transmission block (23), and a transmission arm (25); the transmission block (23) is arranged in a water drop shape and is rotatably connected to the first rotating shaft (21); the transmission arm (25) is rotatably connected to the third rotating shaft (5) and can rotate with its axis as the rotating axis; the transmission block (23) is transmission-connected to the second rotating shaft (31) through the transmission arm (25) and can drive the second rotating shaft (31) to rotate with its axis as the rotating axis.
2. The brain-computer interface probe adjusting mechanism according to claim 1, wherein A transmission ratchet (26) is fixedly connected to the second rotating shaft (31); one end of the transmission arm (25) abuts against the transmission block (23); and the other end is formed with a jaw adapted to the transmission ratchet (26).
3. The brain-computer interface probe adjustment mechanism according to claim 1, wherein It also comprises a coarse adjustment module (3), wherein the coarse adjustment module (3) comprises a second rotating disk (32), wherein the second rotating disk (32) is fixedly connected to the top of the second rotating shaft (31).
4. The brain-computer interface probe adjustment mechanism according to claim 1, characterized in that, The probe connection seat (4) comprises an adjustment block (41) and a probe connection plate (43); the adjustment block (41) is screwed together with the threaded portion; and the adjustment block (41) is fixedly connected to the probe connection plate (43).
5. The brain-computer interface probe adjustment mechanism according to claim 4, characterized in that The probe connection seat (4) further comprises a connection block (42), and the adjustment block (41) is fixedly connected to the probe connection plate (43) via the connection block (42).
6. The brain-computer interface probe adjusting mechanism according to claim 4, characterized in that, The support platform (34) is provided with a limiting groove (341) adapted to the adjusting block (41), and the adjusting block (41) is slidably matched with the inner wall of the limiting groove (341).
7. The brain-computer interface probe adjusting mechanism according to claim 1, wherein A third limit block (51) and a fourth limit block (52) are fixedly connected to the third rotating shaft (5), and the transmission arm (25) is located between the third limit block (51) and the fourth limit block (52).
8. The brain-computer interface probe adjusting mechanism according to claim 1, wherein, The fine adjustment module (2) further comprises a first limit block (22) and a first rotating disk (24); the first limit block (22) is rotatably connected to the first rotating shaft (21); the transmission block (23) is located at the top of the first limit block (22); and the first rotating disk (24) is fixedly connected to the top of the first rotating shaft (21).
9. The brain-computer interface probe adjustment mechanism according to claim 1, characterized in that, A second limit block (33) is fixedly connected to the support platform (34), and the second limit block (33) is rotationally matched with the transmission ratchet (26).
10. The brain-computer interface probe adjusting mechanism according to claim 2, characterized in that, The planes where the transmission ratchet (26), the transmission arm (25) and the top of the transmission block (23) are located are all located in the same plane.