Scissor jack is a kind of lifting equipment, mainly used for lifting small tonnage cars, such as cars. Common specifications are 1T (ton), 1.5T (ton), 2T (ton), 3T (ton) and so on.

Scissor jacks, also called bracket jacks, are lightweight and fast. They are the products of scissor jack manufacturers in china. It is composed of an upper support rod and a lower support rod made of sheet metal. The cross section of the upper strut and the cross section of the lower strut at the tooth portion and the vicinity thereof are rectangular with one side open, and the metal plates on both sides of the opening are bent inward.

Support

The teeth on the upper support rod and the lower support rod are made of metal plates bent on both sides of the opening, and the width of the teeth is greater than the thickness of the metal plate.

The car jack is an important lifting tool indispensable for daily tire replacement and simple maintenance. With the rapid development of China’s economy and the gradual improvement of people’s living standards, more and more families use cars, which makes the demand for jacks increase day by day, and the question of how to replace car tires simply, conveniently and quickly requires We conduct further research.

In this paper, a design scheme of scissor jack with simple structure, large lifting weight and stability is proposed.

The scissor jack manufacturers in china conducts in-depth analysis and research on scissor jack technology, and its working principle is : The user manually shakes the screw to rotate to drive the sleeve and the arm up and down to achieve the purpose of lifting the car. As a new type of car jack, the scissor jack cannot be ignored in further research.

Structure

The structure of the hydraulic jack is mainly composed of the following parts: oil chamber, oil pump, oil storage cavity, piston and crank, etc. When we use the hydraulic jack, we use the special manual crank for the jack to drive the hydraulic pump, so as to drive the oil in hydraulically. The oil chamber pushes the piston up or down, and finally achieves the purpose of lifting or falling objects.

In the field of professional automobile maintenance, (qw) horizontal hydraulic jacks are the most widely used. It is a double-acting hydraulic mechanism with internal liquid return. This kind of jack has high working efficiency and is more convenient to use and carry.

Vertical screw connection structure hydraulic jack Horizontal hydraulic jack Two common hydraulic jacks in kind (2) Working principle of scissor jack Jacks are divided into mechanical jacks and hydraulic jacks, with different working principles. Mechanical jacks can be divided into three categories: rack jacks, screw jacks and scissor jacks. The working principle of the scissor jack is a product designed and produced based on the geometric principle that the length of the two waists of an isosceles triangle remains unchanged, and the vertical height is increased by shortening the length of the base.

Height

It adjusts the length of the bottom side of the upper and lower two isosceles triangles to realize the lifting and lowering height of the whole scissor jack by matching the screw drive between the screw and the nut.
The power source for the lifting and lowering of the scissor jack is realized by the screw drive of the screw and nut, and the screw drive uses the screw pair composed of the screw and the nut to achieve the transmission requirements.

It converts the rotating motion of the screw into the linear motion of the nut and transmits power. Spiral transmission has the advantages of compact structure, uniform rotation, accurate and stable, easy to self-lock, etc., and is widely used in the machinery industry. This idea will be used as a reference by the screw jack manufacturers in china.

The scissor jack manufacturers in china There are many types of jacks, such as: hydraulic jacks, horizontal jacks, scissor jacks, herringbone jacks, vertical jacks and so on. There are many types of jacks, and many car owners are dazzled when choosing a car jack. "Which type of jack is suitable for my car?" In order to solve the questions of our customers, I will first popularize which car owners should choose between scissor jack and herringbone jack.

Advantages

In fact, the existence of everything has its value, so the scissor jack and the herringbone jack have their own advantages.

First of all, both of them are relatively small in size and light in weight, and both are suitable for vehicle use.

Secondly, the herringbone jack has a relatively thin body and a low load capacity, which is more suitable for small vehicles. However, its advantage is that it is more affordable than scissor jacks. Therefore, I suggest that the herringbone jack is also a good choice for small car owners who are not too wealthy.

Finally, the scissor jack is structurally more stable than the herringbone jack, and the body is stronger. So it is not only suitable for small vehicles, but also can drive large SUVs. However, it also has a disadvantage compared with the herringbone jack, that is, it is more laborious and inconvenient when shaking and lifting.

Customers can choose which jack to use according to the size, price, convenience and other factors of their models. In fact, most family cars use scissor jacks. It should be noted that when purchasing, you should choose different load-bearing jacks according to the weight of your car, otherwise overloading will easily occur.