Excuse me, how is this chair surface connected with the backrest?

Causes and solutions of abnormal use of backrest swivel chair;

1. First, there is a handle under the chair to adjust the back of the chair. Press it. If the spring under the chair is broken, just change the bracket.

2. Secondly, the angle can be adjusted. Hold down the handle and don't let go. Then press back, adjust to the required angle, and let go.

Extended data:

Introduction of armchair:

1. Armchairs were produced in the Southern and Northern Dynasties and were more commonly used after the Tang Dynasty. The chair surface is generally square, with a backrest and an arched brain. The modeling feature of armchair is that the backrest has no handrails and the backrest can't stand out. The backrest of this chair has different forms, some of which are called "unified monument" chairs.

2. The other is called "lamp hanging chair", and its beam is two columns long and slightly upturned, just like a lamp pole, hence the name.

Armchairs can be divided into:

1, antistatic four-legged armchair,

2. Anti-static lifting armchair,

3. Ordinary armchair.