​It is important to understand the internal structure of screw jack.

It is important to understand the  internal structure of screw jack.
 Each tool is made up of many parts, including external structure and internal structure. Screw jack is also available. Next, we will discuss the impact of the integrity of internal structure on jack. The following is a detailed introduction.           
 The integrity of the internal structure has a direct impact on the normal use of the jack, because the work of the jack is inseparable from the internal structure, if there are some internal damage, it will directly affect the normal use of the jack.           
 The integrity of the internal structure affects the operation safety of the screw jack. Only if the content structure is intact, the user can use it. In this way, the intact jack can ensure the operation safety. If the "work with  injury" occurs, the potential hazards are enormous.            

 This shows that users should do a good job of regular inspection of screw jacks to ensure the integrity of the internal structure, so that your normal use is not affected.           
 Screw Jack plays an important role in lifting heavy objects. In order to facilitate your understanding of the product and better use of jacks, let's popularize the knowledge of the internal structure of jacks.           
 The upper part of the jack housing is equipped with nuts made of cast iron or bronze. The nut is a lifting screw with trapezoidal or rectangular threads. The top of the screw has no head with surface grooves. The lower part of the head is a rotating handle. The rotation of the screw is driven by the handle through the ratchet and the ratchet wheel with two-way ratchets. The ratchet wheel is driven by the key and the ratchet wheel. Screw connection, pawl installed on the pin shaft, pin rod and spring to keep the pawl in a certain position, and can make any end of the pawl mesh with the ratchet wheel.           
 This is how our screw jack works. Every part of the jack is interlocking. As long as one of the parts is damaged, the tool can not be used properly. I hope you can seriously understand its structure to facilitate future use.           
 Thread pair is a component of screw jack, which plays a certain advantage in the lifting process, but many users do not know about the thread pair. Here we will give you a detailed introduction.           
 The lifting of screw jack is mainly through human power to make the screw pair drive, screw threading to achieve the connection of the mechanical combination, so that the screw gets up and down, leading to the simultaneous lifting and landing of the top weight.            

 The threads of the transmission bear the main weight of the screw jack, so the  service life of the jack is directly determined by the threaded pairs. If the quality of the threaded pairs is too low, the load-bearing capacity will be changed and the prescribed weight will not be able to bear, so it is easy to be damaged when working, which will affect the use of the jack.            

 Therefore, users need to have a certain understanding of the screw pair, pay attention to the quality of parts, in order to avoid the impact of low quality on the use of jacks.
 Screw Jack need to do inspection work, to understand the overall situation, eliminate the dangerous factors, to ensure the safety of operation, we will give you a detailed introduction below.           
 The inspection of screw jack can be divided into daily inspection and monthly inspection according to the time.           
 1.  Daily inspection: general operators can carry out, mainly for some commonly used screw jacks, need to do inspection work before use, from the appearance, operation and other aspects to determine the normal situation of the jack, can carry out heavy lifting work.            

 2.  Monthly inspection: We often say that jacks should be inspected regularly, and the regular time generally refers to the monthly inspection. Professional personnel are required to do the overall inspection of jacks, so as to find problems early and deal with them in advance so as to avoid the impact of sudden accidents on the use of jacks.