A desk and chair with corrective anti-drowsiness
A technique for desks and chairs and correcting sitting posture, which is applied in the field of desks and chairs with correcting and anti-drowsiness, can solve the problems of affecting the quality of teaching, the deterioration of students' learning efficiency, and the impact of learning efficiency
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Embodiment 1
[0024] A desk and chair with anti-drowsiness correction, such as figure 1 , figure 2 , image 3 , Figure 5 and Figure 6 Shown, comprise seat support 1, backrest support 2, seat back 3, correction sitting assembly 4 and anti-drowsiness assembly 5, the upper side of seat support 1 is installed with backrest support 2 in the rotary type, the upper side of backrest support 2 A seat back 3 is installed, and the seat back 3 is equipped with a posture correcting assembly 4, and the seat back 3 is equipped with an anti-drowsy assembly 5.
[0025] During class, the student sits on the seat support 1, leans against the seat back 3, and then controls the correcting posture assembly 4, so that the student can keep sitting upright. When the student wants to doze off, leaning forward will trigger the anti- Drowsiness component 5, and then accomplish the effect of reminding students, can control and correct sitting posture component 4 after class, make it no longer act on the student,...
Embodiment 2
[0031] On the basis of Example 1, such as figure 1 and Figure 4 As shown, a limit handle 6 is also included, and the left and right sides of the seat frame 1 are provided with limit handles 6 .
[0032] After the rubber ball 591 was in contact with the student's back, and the student continued to lean forward, the rack 56 would contact the limit handle 6, so that the rack 56 would no longer move forward, so that the student could not continue to lean forward, preventing the rubber ball from moving forward. 591 has been pushing forward and hurting the students.
[0033] Also comprise ratchet 7, guide frame 8, slide frame 9, the 3rd spring 10, special-shaped block 11, ratchet 12 and the 3rd torsion spring 13, the underside of rotating shaft 42 is equipped with ratchet 7, is connected with guide on the back support 2. Frame 8, the lower side sliding type of guide frame 8 is provided with slide frame 9, buckle 491 cooperates with slide frame 9, is connected with the 3rd spring ...
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