The Across wrench is a hand tool that uses the principl […]
The Across wrench is a hand tool that uses the principle of leverage to turn bolts, screws, nuts and other threads to hold the openings or sleeves of bolts or nuts. It is mainly used to disassemble the locking screws on the car tires. The traditional The cross wrench generally includes two rods welded in a crisscross shape. This structure cannot slide, the force of both hands is unstable, the torque of one hand is not enough, it is not convenient to store, and the volume is large, and it is not convenient to pack, carry and store.
At present, there are also two poles that can slide, but there is no lock pin, which is very insecure during use. It mainly includes a main acting rod and a side-effecting rod. A transverse through hole is provided in the thickened middle section of the main acting rod for the insertion of the side-effecting rod and forming a cross state. In addition, a side of the lateral through-hole is provided. There is a longitudinal deep hole communicating with the through hole for inserting a push button in cooperation with an elastic member and a positioning member, and the middle section of the push button is a narrow section, and the lower section is a locking section.
The above-mentioned structural design is matched with the first and second clamping slots provided on the side-effect lever, so that the plug-in type of the two-acting lever can be easily adjusted and locked to achieve the expected practical and safe performance. The wrench with this structure can be split, which greatly reduces the volume during packaging. However, the positioning structure is more complicated and the production and processing are more troublesome.
It includes handles, sliding rod heads, sliding rods, extension rods and sleeves, and is characterized in that: the handle is Inlaid with a plastic sleeve, a bush is arranged in the plastic sleeve, and a handle extension rod is arranged in the handle. This kind of wrench is positioned by a steel ball spring, and the structure is relatively simple, but it is prone to wear and deformation over time, making the positioning of the sliding rod insufficient. Therefore, the structure needs further improvement.