Chair frame and massage device thereof
A chair back frame and seat seat technology, which is applied in the field of furniture, can solve the problems of stuck massage device, reduced massage comfort, unstable support of the backrest frame supported by the retractable electric push rod, etc., so as to achieve stable operation and avoid jamming. Effect
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Embodiment 1
[0049] Such as figure 1 and figure 2 A chair frame shown includes a base frame 1, an adjusting device 2, a chair back frame 3 and a seat frame 4, and a massage device 5 installed on the chair back frame 3 and the seat frame 4, the chair back frame 3 and the seat frame 4 are hinged, and the adjustment device 2 is used to adjust the angle between the seat back frame 3 and the seat frame 4, and the massage device 5 includes a A rack assembly and a massage movement 51 that can reciprocate on the rack assembly;
[0050] The seat back frame 3 includes two left and right seat back fixing parts 31, two left and right upper rails 32 and some parallel back support rods 33, and the seat frame 4 includes two left and right seat fixing parts 41 and two left and right seat fixing parts. A lower guide rail 42, the upper guide rail 32 is integrally formed or fixedly connected with the seat back fixing member 31, the lower guide rail 42 is integrally formed or fixedly connected with the sea...
Embodiment 2
[0093] The difference between this embodiment and the chair frame in Embodiment 1 is that the chair back frame 3 and the seat frame 4 are fixedly connected or integrally formed, that is, the chair back frame 3 and the seat frame 4 cannot rotate;
[0094] In the embodiment of the present application, the seat back frame 3 is provided with an upper guide groove 321, and the seat frame 4 is provided with a lower guide groove 421, and the upper guide groove 321 is close to one end and the lower end of the seat frame 4. The guide groove 421 is connected to one end close to the seat back frame 3;
[0095] The rack assembly includes an upper rack 52, an upper rack 53, a lower rack 54, a lower rack 55, and a bridge rack 56, and the lower rack 54 is installed on the seat frame 4, so that The above rack 52 is installed on the chair back frame 3, at least one of the lower rack 54 and the upper rack 52 is fixedly connected with the seat frame 4 or the chair back frame 3, and the upper mov...
Embodiment 3
[0098] The difference between this embodiment and the chair frame in Embodiment 1 is that the adjustment device 2 is only used to control the rotation of the seat back frame 3, and the specific structure of the adjustment device 2 can refer to the Chinese patent document with publication number CN209092109U Disclosed adjustment device 2.
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