工作原理:

Driven by springs, multiple gears are engaged.
Achieve multi-angle and different levels of adjustment.
Very suitable for folding sofa beds, lounge chairs, sofa headrests, 等等...

Hinge type:

• Front 3 gears 45° / Front 3 gears 180° / Front 5 gears 90° / Front 5 gears 180°
• Rear 3 gears 45° / Rear 5 gears 90° / Rear 8 gears 180°

Packaging and delivery: 8 每盒件数
单件包装尺寸: 15.2X1.5X1.5 cm
单件毛重: 1.600 公斤

For a detailed display, you can watch the ratchet sofa hinge demonstration video ~v~v~

批发沙发棘轮铰链管棘轮折叠靠背 90 180 Degree Adj...最先出现在。

a.工作原理: Through the opening and closing operation of the gears, the angle between the pillow, seat and bed is changed.

The deformation between the sofa and the bed is realized, and it plays a certain buffering role when closed.

b.High-quality material: stamped with carbon steel, the surface is plated with black zinc.

Not easy to rust, more durable than general metal structures, and the opening angle is about 85°.

c.Long service life: The strong spring consists of 15 coils, is very elastic, and has been tested for more than 100,000 cycles.

Installation tips: Due to the different materials and thicknesses of the mounting plates, you need to choose screws of different lengths according to the installation video to avoid installation failure due to errors.

MRH 可调节沙发床硬件 3 Position Angle Mechanism Hinge Factory...最先出现在。

Used to move the sofa back forward and backward, easily converting the sofa into a bed.

A: Strong and durable structure: made of hot-rolled steel in one-time stamping.

The surface is powder-coated and electroplated to ensure durability and wear resistance.

乙: Multifunctional design: three angles can be adjusted, the maximum opening angle is 135 degrees.

Easily converting the sofa into a bed to increase bedroom space.

C: 包装尺寸:

• 内盒: two/box
  包装尺寸: 43X32X23 cm
  外盒: 8 pairs/box
  外箱尺寸: 55X33X29 cm
  毛重: 23公斤

MRH sofa bed backrest adjustment hardware dual-purpose folding hinge new product...最先出现在。