CN115054256A

CN115054256A - Adjustable brain electrode hood

Info

Publication number: CN115054256A
Application number: CN202210921199.6A
Authority: CN
Inventors: 郑楠; 王亚翔; 吴正明
Original assignee: Jiangsu Tianyu Technology Co ltd
Current assignee: Jiangsu Tianyu Technology Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-09-16
Anticipated expiration: 2042-08-02
Also published as: CN115054256B

Abstract

The invention belongs to the technical field of electroencephalogram acquisition, and particularly relates to an adjustable electroencephalogram electrode hood. The adjustable brain electrode hood comprises: the base plate assemblies are sleeved end to end through the hinge assemblies to form a main ridge of the hood; two sides of each base plate component are suitable for being sleeved with the unfolding plate component through the hinge components to form hood secondary ridges; each of the base plate assemblies and each of the unfolding plate assemblies are adapted to position the electrode assembly to urge the electrode against the scalp after adjusting the shape of the primary spine of the cap and the shape of the secondary spine of the cap via the respective hinge assemblies. This adjustable brain electrode hood passes through base plate subassembly and hinge subassembly and forms hood main ridge to accessible hinge subassembly and expansion board subassembly extend to both sides, form hood secondary ridge, through the shape of the adjustable hood main ridge of hinge subassembly and hood secondary ridge, thereby adapt to the head of different sizes.

Description

Adjustable brain electrode hood

Technical Field

The invention belongs to the technical field of electroencephalogram acquisition, and particularly relates to an adjustable electroencephalogram electrode hood.

Background

Electroencephalogram data refers to electrical signals generated by brain neural activity collected and recorded by an instrument. The human body makes different reactions under different conditions, the corresponding electrical signals generated by the nerve activity are different, and different people make different reactions to the same condition due to different thinking modes, so the thinking modes of the tested person can be analyzed by collecting the electroencephalogram data of the tested person under different conditions and combining a database consisting of the existing electroencephalogram data, and further a suggestion is provided for personal development.

The brain electrode cap needs to be worn when brain electrical data is collected, the age range of a tested person is wide, the head size span of children, young people and adults is large, the size of the existing brain electrode cap cannot be adjusted, brain electrode caps with various sizes are often required to be prepared, the condition that several people of the same age need to be collected at the same time is considered, a plurality of brain electrode caps are required to be prepared in each size, and therefore a great number of sets of brain electrodes need to be purchased at last.

Disclosure of Invention

The invention aims to provide an adjustable brain electrode hood, which aims to solve the technical problem that the existing brain electrode hood cannot be adjusted according to the size of the head.

In order to solve the above technical problems, the present invention provides an adjustable brain electrode hood, comprising: the base plate assemblies are sleeved end to end through the hinge assemblies to form a main ridge of the hood; two sides of each base plate component are suitable for being sleeved with the unfolding plate component through the hinge components to form hood secondary ridges; each of the base plate assemblies and each of the unfolding plate assemblies are adapted to position the electrode assembly to urge the electrode against the scalp after adjusting the shape of the primary spine of the cap and the shape of the secondary spine of the cap via the respective hinge assemblies.

Further, the substrate assembly includes: the head end and the tail end of the base plate are provided with connecting parts; the connecting parts are fixedly connected to two sides of the base plate through narrow plates to form telescopic gaps; the expansion plate assembly comprises: the connecting parts are arranged at the head end and the tail end of the unfolding plate; the hinge assembly includes: the head end of the first sheet is provided with an accommodating part matched with the connecting part, and the tail end of the first sheet is provided with a plurality of pairs of hinged seats; the head end of the second sheet is provided with an accommodating part matched with the connecting part, and the tail end of the second sheet is provided with a hinge joint matched with the hinge seat to form a hinge passage; the bolt is arranged in the hinge channel in a penetrating mode and sleeved with a nut; the accommodating parts of the first sheet and the second sheet are provided with telescopic locking pieces; the bolt and the nut are suitable for locking the first leaf and the second leaf after the first leaf and the second leaf rotate relatively, and the telescopic locking piece is suitable for locking the accommodating part and the corresponding connecting part after the accommodating part and the corresponding connecting part slide relatively, so that the main ridge of the hood and the secondary ridge of the hood are shaped.

Further, the adjustable brain electrode hood further comprises: and one end of the cantilever is fixedly connected with the centered base plate, and the other end of the cantilever is connected with the suspension seat so as to enable the base plate to be close to the head for suspension.

Further, the base plate and the expansion plate are both provided with an electrode extending through hole; the electrode assembly includes: the electrode is suitable for extending into the through hole along the electrode and extending to the scalp, an annular air duct is formed in the wall of the ventilating tube, the annular air duct extends to one end, facing the head, of the ventilating tube to form a distribution air outlet, and an upright air outlet back to the head is formed in the annular air duct; the air direction switching cylinder is hung in the annular air duct and is suitable for moving upwards relative to the annular air duct after contacting the scalp so as to close the distributing air outlet and open the vertical air outlet; an electrode assembly adapted to be rotatably lowered along a helical channel in the wall of the funnel to separate the hair strands against the ends of the electrode assembly.

Further, a pair of ventilator holding parts is arranged on the side wall of the ventilator; the two sides of the electrode extending into the through hole are provided with ventilating cylinder seats; the ventilating barrel seat is provided with a moving square hole which is matched with the clamping part of the ventilating barrel; the upper part of the moving square hole is communicated with a placing groove for placing the holding part of the ventilating funnel; the lower part of the moving square hole is communicated with a limiting groove so as to limit the holding part of the ventilating duct after the ventilating duct is inserted.

Furthermore, an annular air inlet transit cavity is formed in the wall of the ventilating duct and is communicated with an air nozzle on the outer wall of the ventilating duct; and a plurality of flow channels are also formed in the wall of the ventilating duct so as to communicate the annular air duct with the annular air inlet transit cavity.

Furthermore, the outer wall of the inner cylinder which encloses the annular air duct is provided with at least two switching cylinder guide grooves; the switching cylinder guide groove includes: a vertical lead-in groove extending to one end of the inner cylinder facing the head; one end of the transverse rotating groove is communicated with the vertical leading-in groove; the vertical sliding groove is communicated with the other end of the transverse rotating groove; the inner wall of the wind direction switching barrel is provided with hanging convex parts matched with the guide grooves of the switching barrel, and the hanging convex parts are matched with the vertical guide grooves, the transverse rotating grooves and the vertical sliding grooves, so that the wind direction switching barrel rotates after being guided into the corresponding vertical guide grooves through the hanging convex parts, the hanging convex parts enter the corresponding vertical sliding grooves, and the wind direction switching barrel moves upwards relative to the annular air duct after contacting with the scalp.

Furthermore, a switching through hole matched with the vertical air outlet is formed in the middle section of the air direction switching barrel; the lower section of the wind direction switching cylinder is provided with a wind closing convex ring matched with the distributing air outlet; the switching through holes and the air-closing convex rings are arranged at intervals, so that when the air-closing convex rings block the distributing air outlet, the switching through holes are aligned with the vertical air outlet, and air is blown out from the vertical air outlet.

Further, the electrode assembly includes: the electrode embedding column is provided with a circular convex part at one end facing the head part and is provided with the electrode; a threading passage opened in the electrode embedding column; and the embedded column holding part is arranged on the side wall of the electrode embedded column and is matched with the spiral channel.

Further, the upper part of the ventilating duct is provided with a pair of spiral channels; the side wall of the electrode embedding column is provided with a pair of embedding column holding parts.

The adjustable brain electrode hood has the advantages that the main hood ridge is formed by the base plate assembly and the hinge assembly, the secondary hood ridge is formed by the hinge assembly and the expansion plate assembly extending towards two sides, and the shapes of the main hood ridge and the secondary hood ridge can be adjusted by the hinge assembly, so that the adjustable brain electrode hood is suitable for heads with different sizes.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior descriptions will be briefly described below, and it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an exploded view of an adjustable electroencephalogram mask of the present invention;

FIG. 2 is an exploded view of the adjustable electroencephalogram mask of the present invention two;

FIG. 3 is a schematic view of the hinge assembly of the present invention;

FIG. 4 is an exploded view of the electrode assembly of the present invention;

FIG. 5 is an enlarged view at A in FIG. 4;

FIG. 6 is a sectional view of the electrode assembly, the funnel, and the wind direction switching cylinder of the present invention when assembled;

FIG. 7 is a cross-sectional view of the wind direction switching cylinder of the present invention shown in a non-raised position relative to the annular duct;

FIG. 8 is a cross-sectional view of the air direction switching tube of the present invention moving up to the highest position relative to the annular duct;

FIG. 9 is a schematic view of the electrode assembly of the present invention with the electrodes against the scalp;

in the figure:

a substrate assembly 100, a substrate 110, a connecting portion 120, a narrow plate 130, a telescopic gap 131;

the hinge assembly 200, the first leaf 210, the accommodating part 220, the hinge seat 211, the second leaf 240, the hinge head 241, the hinge passage 250, the bolt 261, the nut 262 and the telescopic locking piece 270;

a spreader plate assembly 300, a spreader plate 310;

the main ridge 410 of the hood, the secondary ridge 420 of the hood, the cantilever 430, the suspension seat 440, the electrode stretches into the through hole 450;

an electrode assembly 500;

the air inlet device comprises a ventilating duct 600, an annular air duct 610, a distributing air outlet 620, a vertical air outlet 630, a spiral channel 640, a ventilating duct holding part 650, an annular air inlet transit cavity 660, an air nozzle 670 and a flow channel 680;

a wind direction switching cylinder 700, a hanging convex part 710, a switching through hole 720 and a wind closing convex ring 730;

an electrode kit 800, an electrode embedding column 810, a threading channel 820, an embedding column holding part 830;

the ventilating cylinder seat 900, the moving square hole 910, the placing groove 920 and the limiting groove 930;

an inner cylinder 1000, a switching cylinder guide groove 1010, a vertical guide groove 1011, a transverse rotation groove 1012, and a vertical sliding groove 1013;

electrode 2010, hair 2020, scalp 2030, switch barrel air inlet 2040.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments based on the embodiments of the present invention, which can be realized by a person skilled in the art without any inventive step, are within the scope of the present invention.

Examples

As shown in fig. 1, the present invention provides an adjustable electroencephalograph mask, comprising: a plurality of base plate assemblies 100 nested end-to-end by hinge assemblies 200 to form a cap main spine 410; each base plate assembly 100 is adapted to receive a spreader plate assembly 300 on both sides via the hinge assembly 200 to form a cap sub-ridge 420; each of the base plate assemblies 100 and each of the unfolding plate assemblies 300 is adapted to position the electrode assembly 500 to bring the electrode 2010 against the scalp after adjusting the shape of the primary cap ridge 410 and the shape of the secondary cap ridge 420 via the respective hinge assemblies 200.

The adjustable brain electrode hood of the present invention forms a main hood ridge 410 by the base plate assembly 100 and the hinge assembly 200, and can extend to both sides by the hinge assembly 200 and the exploding plate assembly 300 to form a sub-hood ridge 420, and the shapes of the main hood ridge 410 and the sub-hood ridge 420 can be adjusted by the hinge assembly 200, thereby adapting to heads of different sizes.

As shown in fig. 2, the substrate assembly 100 may include: a base plate 110, both ends of which are provided with connecting parts 120; the connecting part 120 is fixedly connected to two sides of the substrate 110 through narrow plates 130 to form a telescopic gap 131; as shown in fig. 2, the unfolding plate assembly 300 may include: the unfolding plate 310 is provided with the connecting parts 120 at the head end and the tail end; as shown in fig. 3, the hinge assembly 200 may include: a first sheet 210 having a receiving portion 220 at a head end thereof, the receiving portion being adapted to the connecting portion 120, and a plurality of pairs of hinge bases 211 at a tail end thereof; a second sheet 240 having a receiving portion 220 at a head end thereof to be fitted to the connecting portion 120 and a hinge head 241 at a tail end thereof to be fitted to the hinge base 211 to form a hinge passage 250; and a bolt 261 inserted into the hinge passage 250 and sleeved with a nut 262; the accommodating parts 220 of the first sheet 210 and the second sheet 240 are provided with telescopic locking pieces 270; the bolt 261 and the nut 262 are suitable for locking the first leaf 210 and the second leaf 240 after the first leaf and the second leaf rotate relatively, and the telescopic locking piece 270 is suitable for locking the accommodating part 220 and the corresponding connecting part 120 after the accommodating part slides relatively, so that the main ridge 410 of the cover cap and the secondary ridge 420 of the cover cap are shaped. Referring to fig. 1, when the depth of the connection portion 120 entering the receiving portion 220 is adjusted, the telescopic gap 131 may make a space for the first sheet 210 or the second sheet 240 to move.

As shown in fig. 2, the adjustable brain electrode cap may further include: a cantilever 430 having one end fixedly connected to the central base plate 110 and the other end connected to the suspension base 440, so as to suspend the base plate 110 near the head. When in use, the hanging seat 440 can be arranged on a chair back or other objects, the base plate 110 at the other end of the cantilever 430 is suspended close to the head of a measured person, then according to the size of the head of the measured person, the telescopic locking piece 270 is loosened to adjust the depth of the connecting part 120 entering the accommodating part 220, so as to adjust the length of the main ridge 410 of the hood and the secondary ridge 420 of the hood, the telescopic locking piece 270 is tightened to lock after the adjustment is completed, the included angle between the first leaf 210 and the second leaf 240 is adjusted by loosening the bolt 261 and the nut 262, so as to adjust the bending degree of the main ridge 410 of the hood and the secondary ridge 420 of the hood, the bolt 261 and the nut 262 are tightened to lock after the adjustment is completed, the main ridge 410 of the hood and the secondary ridge 420 of the hood are shaped, and finally, the base plate 110 and the expansion plate 310 are suspended close to the head of the measured person; in this embodiment, the main ridge 410 of the cap is composed of five base plate assemblies 100, and has a larger length adjustment space and angle adjustment space, and two sides of each base plate assembly 100 are connected with an unfolding plate assembly 300, it should be noted that, in actual use, the number of the base plate assemblies 100 and the number of the unfolding plate assemblies 300 hung on the side can be increased or decreased according to the needs.

As shown in fig. 1, the base plate 110 and the development plate 310 are both provided with electrode insertion through holes 450; as shown in fig. 4, the electrode assembly 500 may include: the ventilator 600, refer to fig. 1, is suitable for extending to the scalp along the electrode insertion through hole 450, refer to fig. 5, an annular air duct 610 is opened in the wall of the ventilator 600, the annular air duct 610 extends to the end of the ventilator 600 facing the head to form a dispensing air outlet 620, and the annular air duct 610 is opened with a standing air outlet 630 facing away from the head; referring to fig. 7 and 8, a wind direction switching drum 700 suspended in the annular wind tunnel 610 and adapted to move up relative to the annular wind tunnel 610 after contacting the scalp to close the dispensing outlet 620 and open the standing outlet 630; as shown in fig. 4 and 6, the electrode assembly 800 is adapted to be rotatably lowered along the spiral passage 640 in the wall of the funnel 600 to separate the hair strands against the end of the electrode assembly 800.

As shown in fig. 4, 7 and 8, a pair of funnel nipping portions 650 are provided on the side wall of the funnel 600; referring to fig. 1, the two sides of the electrode extending into the through hole 450 are provided with vent cylinder seats 900; as shown in fig. 4, the funnel holder 900 is provided with a square moving hole 910, which is adapted to the funnel holding portion 650; a placing groove 920 is communicated with the upper part of the moving square hole 910 to place the air funnel holding part 650; a limiting groove 930 is communicated with the lower portion of the moving square hole 910 to limit the air funnel holding portion 650 after the air funnel 600 is inserted.

As shown in fig. 6, an annular air inlet transit cavity 660 is further formed in the wall of the ventilator 600, and is communicated with an air tap 670 on the outer wall of the ventilator 600; the wall of the funnel 600 is further provided with a plurality of flow channels 680 to communicate the annular air duct 610 with the annular air inlet transit cavity 660.

As shown in fig. 5, at least two switching tube guide slots 1010 are formed on an outer wall of the inner tube 1000 enclosing the annular air duct 610; referring to fig. 7 and 8, the switching drum guide 1010 may include: a vertical introduction groove 1011 extending to one end of the inner cylinder 1000 toward the head; a lateral rotation groove 1012, one end of which communicates with the vertical introduction groove 1011; a vertical sliding groove 1013 communicating with the other end of the lateral rotation groove 1012; as shown in fig. 5, the inner wall of the wind direction switching cylinder 700 is provided with hanging protrusions 710 adapted to the switching cylinder guide grooves 1010, referring to fig. 7 and 8, and the hanging protrusions 710 are adapted to the vertical guide grooves 1011, the horizontal rotation grooves 1012 and the vertical sliding grooves 1013, so that the wind direction switching cylinder 700 is guided into the corresponding vertical guide grooves 1011 by the hanging protrusions 710 and then rotates, and the hanging protrusions 710 enter the corresponding vertical sliding grooves 1013, so that the wind direction switching cylinder 700 moves up relative to the annular air duct 610 after contacting the scalp. That is, the wind direction switch tube 700 is sleeved with the ventilator 600 through the hanging protrusions 710, after the ventilator 600 is installed, the wind direction switch tube 700 is rotated, and the hanging protrusions 710 enter the vertical sliding grooves 1013 through the horizontal rotating grooves 1012, and then are hung in the annular air duct 610.

As shown in fig. 5, a switching through hole 720 adapted to the vertical air outlet 630 is formed in the middle section of the wind direction switching tube 700; the lower section of the wind direction switching cylinder 700 is provided with a wind closing convex ring 730 matched with the distributing air outlet 620; referring to fig. 8, the switching through hole 720 is spaced apart from the air-lock protrusion ring 730, so that when the air-lock protrusion ring 730 blocks the dispensing outlet 620, the switching through hole 720 is aligned with the upright outlet 630, so that the air is blown out from the upright outlet 630. In this embodiment, as shown in fig. 8, when the hanging protrusion 710 moves to the highest position of the vertical sliding slot 1013, the wind direction switch tube 700 can be against the ventilator 600, so that a part of the wind-closing protrusion 730 is exposed outside the dispensing outlet 620, referring to fig. 9, a plurality of switch tube air inlet holes 2040 can be opened on the part of the wind-closing protrusion 730, and in the process that the wind blows from the vertical outlet 630 and sucks and erects the hair 2020 covered by the wind direction switch tube 700, the outside air enters the wind direction switch tube 700 through the switch tube air inlet holes 2040 to form an ascending air current, which can assist in lifting up the hair 2020 covered by the wind direction switch tube 700.

As shown in fig. 4, the electrode assembly 800 may include: an electrode embedded column 810, one end of which facing the head is a circular convex part and is provided with the electrode 2010; referring to fig. 6, a threading channel 820 is opened in the electrode insert column 810; referring to fig. 4, stud grips 830 are provided on the sidewalls of the electrode studs 810 and fit into the spiral channel 640.

As shown in fig. 4, a pair of spiral passages 640 are formed in the upper portion of the funnel 600; a pair of the stud nipping portions 830 is provided on the sidewall of the electrode stud 810.

When the shapes of the main ridge 410 and the sub-ridge 420 of the hood are adjusted to suspend the base plates 110 and the extending plate 310 close to the head of the examinee, referring to fig. 4, the funnel holding portion 650 is held and the funnel 600 is rotated, so that the funnel holding portion 650 enters the moving square hole 910 from the placing groove 920 and moves slowly toward the scalp, referring to fig. 7, the funnel 700 does not move upward relative to the circular air duct 610, and at this time, the upper section of the funnel 700 shields the vertical air outlet 630, and the air entering the circular air inlet relay chamber 660 from the air nozzle 670 enters the circular air duct 610 through the flow passage 680 and blows out from the dispensing air outlet 620 to blow out the hair on the way of the lower probe, referring to fig. 9, when the funnel 600 is closer to the scalp air duct 2030, the funnel 700 suspended in the circular air inlet relay chamber 660 starts to contact the scalp 2030 and moves upward relative to the circular air duct 610, referring to fig. 8, the dispensing air outlet 620 is closed and the vertical air outlet 630 is opened, the air in the annular air duct 610 is blown out from the vertical air outlet 630, referring to fig. 9, the hair 2020 covered by the wind direction switching tube 700 is sucked to be erected, at this time, if the funnel holding portion 650 can just enter the limit groove 930 optimally, if not, the funnel 600 and the funnel holder 900 can be fixed by an adhesive tape, then, referring to fig. 4, the embedded column holding portion 830 is held, the electrode embedded column 810 rotates and descends along the spiral channel 640, referring to fig. 9, during the rotating and descending process, when the erected hair 2020 contacts the circular convex portion of the electrode embedded column 810, the erected hair 2020 slides on the circular convex portion easily, enters the gap between the electrode embedded column 810 and the funnel 600, and finally, the electrode 2010 is abutted against the scalp 2030, at this time, the embedded column holding portion 830 and the funnel 600 can also be fixed by the adhesive tape.

In summary, the adjustable brain electrode hood provided by the present invention forms the main hood ridge 410 by the base plate assembly 100 and the hinge assembly 200, and extends to both sides by the hinge assembly 200 and the unfolding plate assembly 300 to form the secondary hood ridge 420, and the shapes of the main hood ridge 410 and the secondary hood ridge 420 can be adjusted by the hinge assembly 200, so as to adapt to heads of different sizes, and the electrode 2010 can be pressed against the scalp 2030 while avoiding hair strands by the electrode assembly 500, thereby completing the contact with the scalp.

In the embodiments provided in the present application, it should be understood that the disclosed system and apparatus may be implemented in other ways. The above-described embodiments are merely illustrative, and for example, the division of the mechanism is merely a logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In light of the foregoing description of the preferred embodiments of the present invention, it is to be understood that various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. An adjustable brain electrode hood, comprising:

a plurality of base plate assemblies (100) nested end-to-end by hinge assemblies (200) to form a cap main spine (410);

two sides of each base plate assembly (100) are suitable for sleeving the unfolding plate assembly (300) through the hinge assembly (200) to form a hood sub-ridge (420);

each base plate assembly (100) and each unfolding plate assembly (300) is adapted to position an electrode assembly (500) to urge an electrode (2010) against the scalp upon adjustment of the shape of the primary cap ridge (410) and the shape of the secondary cap ridge (420) by a respective hinge assembly (200).

2. The adjustable brain electrode hood according to claim 1,

the substrate assembly (100) includes:

a base plate (110) provided with connecting parts (120) at the head and tail ends thereof;

the connecting part (120) is fixedly connected to two sides of the base plate (110) through narrow plates (130) to form a telescopic gap (131);

the deployment panel assembly (300) comprises:

the connecting parts (120) are arranged at the head end and the tail end of the unfolding plate (310);

the hinge assembly (200) includes:

the head end of the first sheet (210) is provided with a containing part (220) matched with the connecting part (120), and the tail end of the first sheet is provided with a plurality of pairs of hinged seats (211);

the head end of the second leaf (240) is provided with a containing part (220) matched with the connecting part (120), and the tail end of the second leaf is provided with a hinge head (241) matched with the hinge seat (211) to form a hinge channel (250); and

a bolt (261) which is inserted into the hinge passage (250) and is sleeved with a nut (262);

the accommodating parts (220) of the first sheet (210) and the second sheet (240) are provided with telescopic locking pieces (270);

the bolt (261) and the nut (262) are suitable for locking the first leaf (210) and the second leaf (240) after the first leaf and the second leaf rotate relatively, and the telescopic locking piece (270) is suitable for locking the accommodating part (220) and the corresponding connecting part (120) after the accommodating part slides relatively, so that the main ridge (410) and the secondary ridge (420) of the hood are shaped.

3. The adjustable brain electrode hood according to claim 2, further comprising:

and one end of the cantilever (430) is fixedly connected with the centered base plate (110), and the other end of the cantilever is connected with the suspension seat (440) so as to enable the base plate (110) to be suspended close to the head.

4. The adjustable brain electrode hood according to claim 3,

the base plate (110) and the expansion plate (310) are both provided with electrode extending through holes (450);

the electrode assembly (500) comprises:

the ventilating tube (600) is suitable for extending to the scalp along the electrode extending through hole (450), an annular air duct (610) is formed in the wall of the ventilating tube (600), the annular air duct (610) extends to one end, facing the head, of the ventilating tube (600) to form a distributing air outlet (620), and the annular air duct (610) is provided with a standing air outlet (630) facing away from the head;

a wind direction switching barrel (700) suspended in the annular wind tunnel (610) and adapted to move up relative to the annular wind tunnel (610) after contacting the scalp, so as to close the dispensing outlet (620) and open the standing outlet (630);

an electrode assembly (800) adapted to be rotatably lowered along a helical channel (640) in the wall of the funnel (600) to separate hair strands abutting the end of the electrode assembly (800).

5. The adjustable brain electrode hood according to claim 4,

a pair of ventilator holding parts (650) are arranged on the side wall of the ventilator (600);

the two sides of the electrode extending into the through hole (450) are provided with a ventilating cylinder seat (900);

the ventilator seat (900) is provided with a moving square hole (910) which is matched with the ventilator holding part (650);

a placing groove (920) is communicated with the upper part of the moving square hole (910) to place the holding part (650) of the ventilating funnel;

the lower part of the moving square hole (910) is communicated with a limiting groove (930) so as to limit the air funnel holding part (650) after the air funnel (600) is inserted.

6. The adjustable brain electrode hood according to claim 5,

an annular air inlet transit cavity (660) is further formed in the wall of the ventilating duct (600) and is communicated with an air nozzle (670) on the outer wall of the ventilating duct (600);

the wall of the ventilating duct (600) is also provided with a plurality of flow channels (680) so as to communicate the annular air duct (610) with the annular air inlet transit cavity (660).

7. The adjustable brain electrode hood according to claim 6,

the outer wall of the inner cylinder (1000) which is enclosed into the annular air duct (610) is provided with at least two switching cylinder guide grooves (1010);

the switching drum guide groove (1010) includes:

a vertical introduction groove (1011) extending to one end of the inner cylinder (1000) facing the head;

a transverse rotation groove (1012), one end of which is communicated with the vertical leading-in groove (1011);

a vertical sliding groove (1013) communicating with the other end of the lateral rotation groove (1012);

hanging convex parts (710) matched with the guide grooves (1010) of the switching cylinder are arranged on the inner wall of the wind direction switching cylinder (700), and the hanging convex parts (710) are matched with the vertical guide grooves (1011), the transverse rotating grooves (1012) and the vertical sliding grooves (1013), so that the wind direction switching cylinder (700) is guided into the corresponding vertical guide grooves (1011) through the hanging convex parts (710) and then rotates, and the hanging convex parts (710) enter the corresponding vertical sliding grooves (1013), and then the wind direction switching cylinder (700) moves upwards relative to the annular air duct (610) after contacting with the scalp.

8. The adjustable brain electrode hood according to claim 7,

the middle section of the wind direction switching barrel (700) is provided with a switching through hole (720) matched with the vertical air outlet (630);

the lower section of the wind direction switching cylinder (700) is provided with a wind closing convex ring (730) matched with the distributing air outlet (620);

the switching through hole (720) and the air-closing convex ring (730) are arranged at intervals, so that when the air-closing convex ring (730) blocks the distribution air outlet (620), the switching through hole (720) is aligned with the vertical air outlet (630), and air is blown out from the vertical air outlet (630).

9. The adjustable brain electrode cap according to claim 8,

the electrode assembly (800) comprises:

an electrode embedded column (810) which is a circular convex part at one end facing the head part and is provided with the electrode (2010);

a threading channel (820) opening in the electrode inlay post (810);

a stud grip (830) disposed on a sidewall of the electrode stud (810) and fitting with the helical channel (640).

10. The adjustable brain electrode hood according to claim 9,

the upper part of the ventilating duct (600) is provided with a pair of spiral channels (640);

the side wall of the electrode embedded column (810) is provided with a pair of embedded column nipping parts (830).