Easy-to-wear electroencephalogram sensor

Abstract

The utility model relates to the technical field of electroencephalogram sensors, in particular to an electroencephalogram sensor convenient to wear, which comprises a detector body, a connecting shaft, a sliding block, a connecting plate, guide rails, a connecting seat and a limiting belt, the connecting plate is fixedly connected between the two guide rails, the sliding block is slidably arranged in the guide rails, the connecting shaft is rotatably arranged on the sliding block, and the connecting seat is fixedly connected with the connecting shaft. A detector body is fixedly connected between the two connecting shafts, a connecting base is fixedly connected to the guide rail, and a limiting belt is rotationally arranged on the connecting base. The two limiting belts are adjusted to the proper length by pulling the right limiting belt, then the pull rod is loosened, the return spring rebounds to drive the clamping plate and the pull rod to move to make contact with the clamping block, the detector body is fixed to the head through the two limiting belts, and therefore the situation that equipment is thrown off due to movement of the body or the head can be prevented.

Description

Technical Field

[0001] This utility model relates to the field of electroencephalogram (EEG) sensor technology, and in particular to an easy-to-wear EEG sensor. Background Technology

[0002] An electroencephalogram (EEG) sensor is a device used to detect and record electrical signals generated by the brain; these signals are commonly referred to as an EEG.

[0003] Patent CN216317651U discloses a wearable EEG sensor. It includes a sensor body and a top curved rod. Adhesive blocks are located on both sides of the outer ring of the sensor body. A lifting groove is provided on the upper surface of each adhesive block, and an adjustable lifting rod is located within the lifting groove. The two ends of the top curved rod are connected to the heads of the lifting rods on both sides. An internal block is located on the outer end face of the adhesive block, and an adjustable circular buckle is located on the outer end face of the internal block. When wearing this patent, the sensor body and top curved rod are secured to the head, and then the sensor body is hung on the ear. However, this existing patent, relying solely on securing the top curved rod to the head and hanging the sensor body on the ear, makes it difficult to ensure the device's stability. During body movement and head movement, the device is prone to falling off the head, causing it to drop and be damaged.

[0004] Therefore, there is a need for a wearable EEG sensor with anti-fall-off function. Utility Model Content

[0005] In order to overcome the shortcomings of the existing patents, which rely solely on the top curved rod to be clamped on the head and the sensor body to be hung on the ear, making it difficult to ensure the stability of the device and making it easy for the device to fall off the head during body movement and head movement, resulting in the device falling to the ground and being damaged, this utility model provides a wearable EEG sensor with anti-fall-off function.

[0006] To address the aforementioned issues, this utility model employs the following technical solution: a wearable EEG sensor comprising a detector body, a connecting shaft, a sliding block, a connecting plate, and a guide rail. A connecting plate is fixedly connected between two guide rails. A sliding block is slidably disposed within the guide rails. A connecting shaft is rotatably disposed on the sliding block. The detector body is fixedly connected between the two connecting shafts. The sensor also includes a connecting seat, a limiting band, a locking block, a fixing band, a guide block, a locking plate, and a return spring. A connecting seat is fixedly connected to the guide rail. A limiting band is rotatably disposed on the connecting seat. A fixing band is fixedly connected to one of the limiting bands. The other limiting band passes through the fixing band. Multiple locking blocks are evenly spaced and fixedly connected to the limiting band that passes through the fixing band. A guide block is fixedly connected to the fixing band. A locking plate is slidably disposed on the guide block. The locking plate passes through the fixing band and contacts the locking block. A return spring is sleeved on the guide block. The two ends of the return spring are respectively connected to the guide block and the locking plate.

[0007] Furthermore, it also includes a fixing block, a telescopic rod, a retaining pad, a return spring, and an adjusting rod. The fixing block is slidably mounted on the connecting plate, and the adjusting rod is threaded onto the fixing block. The adjusting rod contacts the connecting plate. Two telescopic rods are fixedly connected to the fixing block, and a retaining pad is fixedly connected between the two telescopic rods. A return spring is fitted onto the telescopic rod, and the two ends of the return spring are connected to the retaining pad and the fixing block, respectively.

[0008] Furthermore, it also includes retaining balls and return springs. The sliding block has multiple slots, and multiple retaining balls are slidably arranged on the guide rail. A return spring connects the retaining balls to the guide rail, and the retaining balls are engaged in adjacent slots.

[0009] Furthermore, it also includes a support ring and a pin. The support ring is fixedly connected to the sliding block, and the pin is slidably provided on the support ring. The pin is engaged in the adjacent connecting shaft.

[0010] Furthermore, it also includes a pull rod, which is fixedly connected to the plate.

[0011] Furthermore, two buffer bars are provided on the detector body.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. By pulling the right limit band, the two limit bands are adjusted to a suitable length. Then, the pull rod is released, and the return spring rebounds, causing the card plate and the pull rod to move and contact the card block. In this way, the two limit bands fix the detector body to the head, thereby preventing the device from falling off due to body or head movement.

[0013] 2. By having the user's head contact the pad and squeeze it, the pad moves and compresses the telescopic rod, thus locking the user's head in place. This allows it to be used by people with different head sizes.

[0014] 3. By pulling the detector body, the detector body drives the two connecting shafts and the sliding block to move. The retaining ball moves back and forth, and the return spring is compressed accordingly. After moving to the appropriate height, the corresponding retaining ball will lock into the slot to fix the sliding block, thereby adjusting the height of the detector body and helping to accurately place the sensor in the optimal position for the required measurement. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the detector body, connecting shaft, and sliding block of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the detector body, support ring, and buffer strip of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the limiting belt, fixing belt, and guide block of this utility model.

[0019] Figure 5 This is a three-dimensional sectional view of the card block, fixing strap and guide block of this utility model.

[0020] Figure 6 This is a three-dimensional sectional view of the guide block, clamping plate, and return spring of this utility model.

[0021] Figure 7 This is a three-dimensional sectional view of the retaining pad, return spring, and adjusting rod of this utility model.

[0022] Figure 8 This is a three-dimensional sectional view of the support ring, pin, and tie rod of this utility model.

[0023] Figure 9 This is a three-dimensional sectional view of the retaining ball, return spring, and retaining groove of this utility model.

[0024] Reference numerals: 1. Detector body; 101. Connecting shaft; 2. Sliding block; 3. Guide rail; 4. Connecting seat; 401. Connecting plate; 5. Limiting belt; 50. Locking block; 6. Fixing belt; 7. Guide block; 8. Locking plate; 9. Return spring; 10. Fixing block; 11. Telescopic rod; 12. Locking pad; 13. Reset spring; 14. Adjusting rod; 15. Locking ball; 16. Return spring; 17. Locking groove; 18. Support ring; 19. Pin; 20. Pull rod; 21. Buffer strip. Detailed Implementation

[0025] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0026] Example 1: A wearable EEG sensor, see [reference] Figures 1-9As shown, the device includes a detector body 1, a connecting shaft 101, a sliding block 2, a connecting plate 401, and guide rails 3. A connecting plate 401, which is arc-shaped, is welded between the tops of the two guide rails 3. Sliding blocks 2 are slidably arranged inside each of the two guide rails 3, and connecting shafts 101 are rotatably mounted on the sliding blocks 2. The detector body 1 is fixedly connected between the two connecting shafts 101. The device also includes a connecting seat 4, a limiting band 5, a locking block 50, a fixing band 6, a guide block 7, a locking plate 8, and a return spring 9. The connecting seat 4 is fixedly connected to the bottom of the guide rails 3. A limiting band 5 is rotatably installed on the seat 4. A fixing band 6 is fixedly connected to the end of the limiting band 5 on the left. The limiting band 5 on the right passes through the fixing band 6. Multiple locking blocks 50 are fixedly connected at even intervals on the limiting band 5 on the right. The locking blocks 50 have an inverted triangular structure. A guide block 7 is fixedly connected to the right side of the fixing band 6. A locking plate 8 is slidably installed on the guide block 7. The locking plate 8 passes through the fixing band 6 and contacts the locking block 50, so that the locking plate 8 locks the right limiting band 5. A return spring 9 is sleeved on the guide block 7. The two ends of the return spring 9 are connected to the guide block 7 and the locking plate 8 respectively.

[0027] See Figure 7 and Figure 8 As shown, it also includes a support ring 18 and a pin 19. The support ring 18 is fixedly connected to the outside of the sliding block 2. The pin 19 is slidably provided on the support ring 18 and is inserted into the adjacent connecting shaft 101.

[0028] See Figure 6 As shown, it also includes a pull rod 20, which is fixedly connected to the plate 8.

[0029] See Figure 1 and Figure 2 As shown, it also includes a buffer strip 21, which is symmetrically arranged on the inner side of the detector body 1.

[0030] When the EEG sensor needs to be worn on the head, first remove the pin 19, then rotate the connecting shaft 101 to rotate the detector body 1, thereby adjusting the angle of the detector body 1. After adjusting to the appropriate angle, reinsert the pin 19 into the connecting shaft 101. By securing the connecting plate 401 and the detector body 1 to the head, the two limiting straps 5 hang at the chin. The buffer strip 21 reduces the pressure between the detector body 1 and the user's head, preventing the detector body 1 from causing pain to the user. Then pull the lever outward. 20 causes the lever 20 to move the clamping plate 8 outward, and the return spring 9 is compressed, causing the clamping rod to disengage from the clamping block 50. Then, by pulling the right limit band 5, the two limit bands 5 are adjusted to a suitable length. Then, the lever 20 is released, causing the return spring 9 to rebound and move the clamping plate 8 and the lever 20 back into contact with the clamping block 50. In this way, the two limit bands 5 fix the detector body 1 to the head, thereby preventing the device from being thrown off due to body or head movement. The lever 20 makes it easy for the user to pull the clamping plate 8.

[0031] Example 2: Based on Example 1, refer to Figure 7 As shown, it also includes a fixing block 10, a telescopic rod 11, a retaining pad 12, a return spring 13, and an adjusting rod 14. The fixing block 10 is slidably provided on the upper part of the connecting plate 401. The adjusting rod 14 is threadedly provided on the front side of the fixing block 10. The end of the adjusting rod 14 contacts the connecting plate 401. The telescopic rods 11 are symmetrically fixedly connected to the bottom of the fixing block 10. The retaining pad 12 is fixedly connected between the ends of the two telescopic rods 11. The return spring 13 is sleeved on the telescopic rod 11. The two ends of the return spring 13 are respectively connected to the retaining pad 12 and the fixing block 10.

[0032] When the device is worn on the head, first rotate the adjusting rod 14. After the adjusting rod 14 disengages from the connecting plate 401, move the fixing block 10 to the appropriate position. After the movement is completed, reverse the adjusting rod 14 so that the adjusting rod 14 re-engages with the connecting plate 401, thereby fixing the position of the fixing block. Then, the user's head contacts the pad 12 and squeezes the pad 12. The pad 12 moves and compresses the telescopic rod 11, and the return spring 13 is compressed accordingly, thereby locking the user's head. This allows it to be used by people with different head sizes. When the device is removed, the return spring 13 rebounds and drives the pad 12 back to its original position, and the telescopic rod 11 extends to restore its original shape.

[0033] See Figure 8 and Figure 9 As shown, it also includes a retaining bead 15 and a return spring 16. The sliding block 2 has three slots 17 evenly spaced in front and behind. The guide rail 3 has seven retaining beads 15 evenly spaced in front and behind. The retaining bead 15 is connected to the guide rail 3 by a return spring 16. The retaining bead 15 is engaged in the adjacent slots 17.

[0034] When it is necessary to adjust the height of the detector body 1, by pulling the detector body 1, the detector body 1 drives the two connecting shafts 101 and the sliding block 2 to move, the retaining ball 15 moves back and forth, and the return spring 16 is compressed accordingly. After moving to the appropriate height, the corresponding retaining ball 15 will be locked into the slot 17 to fix the sliding block 2, thereby adjusting the height of the detector body 1, which helps to accurately place the sensor in the optimal position for the required measurement.

[0035] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A wearable electroencephalogram (EEG) sensor, comprising a detector body (1), a connecting shaft (101), a sliding block (2), a connecting plate (401), and guide rails (3), wherein a connecting plate (401) is fixedly connected between two guide rails (3), a sliding block (2) is slidably disposed within the guide rails (3), a connecting shaft (101) is rotatably disposed on the sliding block (2), and a detector body (1) is fixedly connected between two connecting shafts (101), characterized in that: It also includes a connecting seat (4), a limiting band (5), a locking block (50), a fixing band (6), a guide block (7), a locking plate (8), and a return spring (9). The connecting seat (4) is fixedly connected to the guide rail (3). The connecting seat (4) is rotatably provided with a limiting band (5). One of the limiting bands (5) is fixedly connected with a fixing band (6). The other limiting band (5) passes through the fixing band (6). Multiple locking blocks (50) are fixedly connected at even intervals on the limiting band (5) that passes through the fixing band (6). The fixing band (6) is fixedly connected with a guide block (7). The guide block (7) is slidably provided with a locking plate (8). The locking plate (8) passes through the fixing band (6) and contacts the locking block (50). The guide block (7) is fitted with a return spring (9). The two ends of the return spring (9) are connected to the guide block (7) and the locking plate (8) respectively.

2. The wearable EEG sensor as described in claim 1, characterized in that: It also includes a fixing block (10), a telescopic rod (11), a retaining pad (12), a return spring (13), and an adjusting rod (14). The fixing block (10) is slidably arranged on the connecting plate (401), and the adjusting rod (14) is threadedly arranged on the fixing block (10). The adjusting rod (14) contacts the connecting plate (401). Two telescopic rods (11) are fixedly connected to the fixing block (10), and a retaining pad (12) is fixedly connected between the two telescopic rods (11). A return spring (13) is sleeved on the telescopic rod (11), and the two ends of the return spring (13) are respectively connected to the retaining pad (12) and the fixing block (10).

3. The wearable EEG sensor as described in claim 2, characterized in that: It also includes a retaining ball (15) and a return spring (16). The sliding block (2) has multiple slots (17), and the guide rail (3) is slidably provided with multiple retaining balls (15). The retaining ball (15) is connected to the guide rail (3) by a return spring (16), and the retaining ball (15) is inserted into the adjacent slot (17).

4. The wearable EEG sensor as described in claim 3, characterized in that: It also includes a support ring (18) and a pin (19). The support ring (18) is fixedly connected to the sliding block (2), and the pin (19) is slidably provided on the support ring (18). The pin (19) is inserted into the adjacent connecting shaft (101).

5. The wearable EEG sensor as described in claim 4, characterized in that: It also includes a pull rod (20), which is fixedly connected to the plate (8).

6. The wearable EEG sensor as described in claim 5, characterized in that: It also includes a buffer bar (21), and two buffer bars (21) are provided on the detector body (1).

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