Seat freely-increased/decreased sofa

Abstract

The invention discloses a seat freely-increased / decreased sofa, which consists of an under frame, arm cushions, a seat cushion and a backrest cushion, wherein the arm cushions, the seat cushion and the backrest cushion are connected with the under frame; the front and rear ends of a left steel tube and a right steel tube of the under frame are upwards welded with right-angled connecting parts which are connected with a backboard and arm boards through bolts, are downwards provided with sofa legs capable of automatically increasing and decreasing the seats, and are connected with short steel tubes in a horizontal plane; the short steel tubes are sleeved outside a front steel tube and a rear steel tube; a plurality of small holes are reserved at corresponding positions on the left, right, front and rear steel tubes; elastic webbings are arranged between the opposite steel tubes; and the upper end of each arm cushion is provided with a turned-over edge which covers the upper end of the corresponding arm board. In the seat freely-increased / decreased sofa of the invention, the left and right steel tubes of the under frame can be provided with the short steel tubes which are sleeved and connected with the front and rear steel tubes of the under frame, which is convenient for mounting and dismounting, and the seat freely-increased / decreased sofa with double seats or a plurality of seats can be formed by adding one arm on one side; and simultaneously, the elastic webbings are arranged between the opposite steel tubes of the under frame, which prolongs the service life of the seat freely-increased / decreased sofa at the same time of ensuring the elasticity of a base of the seat freely-increased / decreased sofa.

Description

Technical field: [0001] The invention relates to articles for human life, in particular to furniture, in particular to a sofa with freely increasing or decreasing seats. Background technique: [0002] In the prior art, the sofa has a bulky structure, which is troublesome to disassemble and assemble. Some sofas cannot even be disassembled and cleaned. Moreover, the number of seats of the sofa is fixed, a single seat is a single seat, and a double seat is a double seat, which cannot be changed according to needs; the softness of the sofa is realized by setting springs in the seat cushions, and the springs are deformed after heavy pressure and are easily damaged , short life. Invention content: [0003] The purpose of the present invention is to provide a sofa that can freely increase or decrease the seat. The sofa that can freely increase or decrease the seat should solve the problem that the sofa is not easy to disassemble, the seat cannot be freely increased or decreased,...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a sofa that can freely increase or decrease the seat. The sofa that can freely increase or decrease the seat should solve the problem that the sofa is not easy to disassemble, the seat cannot be freely increased or decreased, and the service life of the spring in the cushion is solved. short technical question

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