Leaning back type chair frame capable of locking backrest in using state
A technology of backrest frame and state, applied in the field of reclining chair frame, can solve the problems of causing accidents, lack of locking mechanism, backrest toppling, etc., and achieve the effect of avoiding accidents
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[0017] figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 , Figure 8 The reclining chair frame whose backrest can be locked when it is in use includes a seat cushion frame 1, an armrest 3 and a backrest frame 6, the armrest 3 is composed of a crossbeam 7 and a column 10, the front part of the crossbeam 7 and the The upper part of the column 10 is provided with a connecting pin 9 for flexible connection, and the lower part of the column 10 is provided with a connecting block 12 and a pin shaft 11 to be movably connected to both sides of the cushion frame 1, and the rear part of the crossbeam 7 is provided with a connecting block 12 It is movably connected with the toggle pin 5 on both sides of the middle part of the back frame 6; the seat cushion frame 1 is provided with a connecting frame 2, and the upper part of the connecting frame 2 is provided with a connecting block 12 and the rotating pin 4 is movably connected to the back frame 6 The ...
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