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How much do you know about the little knowledge of the meter box?
The instrument box is a box that protects its internal components by placing instruments. Including the shell, panels, liners, brackets and other components. Meter box can be widely used in instruments, meters, electronics, communications, automation, sensors, smart cards, industrial control, precision machinery and other industries.
The instrument box generally uses shells, panels, liners, brackets and other components as skeletons, ABS, MDF (medium-fiber board), splint (multi-layered board), etc., as panels, with three links, mouth strips, handles, locks, etc. The box assembled by accessories has a wide range of applications in packaging and other industries because of its reasonable design structure, meticulous professional workmanship, strong bearing capacity, strong durability, and elegant appearance. Many, with the rise of various domestic industries in recent years, especially the factors required by the ISO industry, the pursuit of the integrity of the product packaging, transportation process, the application of the instrument box will also increase.
The use of aluminum alloy boxes is constantly increasing. It can place some sophisticated instruments. The main body is made of high-quality aluminum alloy profiles, with features of reasonable design, firm structure and beautiful appearance.
The internal structure of the aluminum alloy box is a groove excavated by the EVA sponge according to the appearance of the meter, and the material composition of the EVA is mainly the EVA ethylene-vinyl acetate copolymer. Ethylene-vinyl acetate copolymer is a new type of environmental protection rubber and plastic material, with good anti-skid, seismic, thermal insulation, moisture resistance, corrosion resistance and other advantages, and non-toxic, non-absorbent, can be processed by the design, its softness, toughness, Resistance to stress cracking etc. is superior to conventional packaging materials such as polystyrene (foam).
The instrument box accessories are installed in various positions of the instrument box to protect the appearance of the instrument box and the box and improve the value of the product. Mainly include: 40 aluminum wrap angle, G number wrap angle, No. 1 strainer box buckle, Naihui advanced handle, angle aluminum, upper and lower M-shaped aluminum instrument box, parts and materials: iron chrome, iron roasted black, stainless steel 304 and so on.
In addition to the aluminum alloy box, there is a common stainless steel instrument incubator. The box body is made by bending and welding with high-quality cold-rolled steel plate, and can also be made of stainless steel plate according to user requirements. The top cover of the box is a unidirectional slope type, the water does not infiltrate into the box, and the door is sealed with a high-quality seal to prevent rain and dust. The box is splash-proof and sealed, and it can meet IP54-IP65 protection level according to user requirements.
There are 25 to 30mm thick flame-retardant insulation layers on the six sides of the box. This material has the advantages of low thermal conductivity, small capacity, flame retardance, non-toxicity, good water resistance, and corrosion resistance. The surface is protected by a galvanized or aluminum plate. The heat preservation structure of the box has the characteristics of simple construction, durability and good heat preservation.
The transmission is installed in the box and can be freely adjusted on a high level galvanized rack. The left, right, upper and lower coordinates can be adjusted by means of long holes on the corner steel of the box column, which is easy to install. The pressure guiding tube introduced into the box can be inserted into the square hole from the back side of the box, and then it is sealed with the tube sheet, pierced with the knock hole at the end of the tube sheet, and sealed with a sealant.
The top of the box has lights, there is a trip switch control, the door lights open, the door closed lights off, maintenance is very convenient. There is a LED digital display on the box door to show the temperature inside the box, which is convenient for the operator to inspect the insulation inside the box. The cable can be introduced from the box or box side, and the cable connector specification is determined by the design or the user. Inside of the incubator, there are rails for the installation of electrical components, which are used for the connection of cables, relays, switches, etc. in the box.
So, how should it be installed? Insulation boxes and protection boxes are installed and fixed on the support. The box supports are made of angle steel or channel steel. When installing, the bracket (seat) is welded to the embedded steel plate or fixed on the pre-installed bolt. Box supports generally have a civil foundation and are embedded with steel plates or anchor bolts or expansion bolts on the civil engineering foundation. The height of the box from the ground is 1.3 to 1.5m, which can be installed separately or in a centralized manner.
There are two ways to install the junction box and distribution box. The same installation method as the incubator and the protection box can be adopted, and the suspension can also be mounted on the bracket of the wall. Insulation box, protection box box on the hole is to use drilling methods, and use the bulkhead connector to connect the inside and outside of the box or cable, so that the box is sealed. In the explosion-proof building, the instrument box adopts positive pressure ventilation, and the introduction of the cable is sealed by the sealing stuffing box. Positive pressure vented instrument boxes need to be replaced before power transmission, and a ventilation device and alarm or control device must be installed.
With the continuous development of new instruments and meters in China, the instrument box will have a broader market development prospects.