At present, the sprayers sold in the rural market in my country are basically small, among which the manual knapsack plastic sprayer (hereinafter referred to as the sprayer) is currently the most widely used and relatively common spraying device, accounting for 80% of the annual sales of plant protection machinery products in the country , accounting for more than 95% of the social ownership of plant protection machinery.
There are many kinds of sprayer products. Generally, there are two kinds of blow molding and injection molding according to the production process of the product.
Due to the simple structure, low price, large market demand, small production investment, and easy assembly of the sprayer, the sales target of the sprayer is generally farmers, and the sales market is basically concentrated in rural areas. Therefore, counterfeit and shoddy electric sprayer products have a lot of room for survival, and also occupy a large market share. The quality problems existing in the sprayer are generally manifested in the following aspects: ① the material does not meet the requirements, ② cutting corners, ③ the safety warning signs do not meet the requirements, and ④ shoddy charging.
Since the quality of sprayer products will directly affect the operator's personal health and safety, the safety of agricultural products and cause environmental pollution, users should pay attention to the following three points when purchasing sprayers:
1. Look at the sign
①Check whether the product's trademark, factory name, factory address, and certification mark are complete;
②From the perspective of product packaging, the outer packaging of the whole machine should be firm and reliable; the standard code of the product implementation should be marked on the packaging box, and the random documents including the product instruction manual, the three-guarantee certificate, and the product qualification certificate should be complete;
③ Check whether there is a "3C" mark. The regular enterprises in the sprayer industry have passed the "3C" compulsory certification, and there should be a "CCC" mark in a prominent position of the product.
2. Look at the appearance
① Look at the appearance of plastic parts: if the plastic parts of the sprayer are parts made of recycled materials or inferior materials, the color is often turbid, while the plastic parts produced from new materials are generally bright in color and have a certain degree of transparency;
② Look at the processing quality of the whole machine and spare parts: the inferior sprayer has a rough product process, and the plastic parts are not uniformly plasticized; the material of the rubber tube can be seen, and the quality of the rubber tube with an inner pressure-bearing layer is generally better; to have the characteristics of thick and uniform;
③ Look at the assembly quality: the moving parts should be flexible in operation, and there should be no jamming, bumping, etc.; non-moving parts should not have obvious deformation, bending, etc. after assembly; the fasteners should be firm and reliable; the welding parts should be firm.
3. Simple test
①Weighing: Good quality sprayers are generally thicker and heavier;
②For the FRP spray rod, use both hands to grasp the two ends of the spray rod and twist it in both directions. A good spray rod will generally not break;
③Water filling test machine: The spraying of the sprayer and the water pump should be continuous and uniform, and there should be no leakage at the parts and joints; at the same time, the liquid medicine tank filled with water can be tilted about 45° in all directions, and observe whether there is any connection at the joint of the medicine box cover. Leakage; in addition, merchants can also be required to fill the liquid medicine tank with water and drop it to the ground from a height of about 1m to see if the liquid medicine tank leaks and ruptures, and merchants dealing with inferior products generally do not agree with such a request from users.
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