A kind of high voltage test pen
An electroscope, high-voltage technology, applied in the direction of measuring electricity, measuring electrical variables, components of electrical measuring instruments, etc., can solve the problems of inability to expand and contract, unable to rotate the electroscope, unable to adapt to the maintenance environment, etc., and achieve convenient operation. , to prevent ultraviolet light oxidation, the effect of simple structure
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Embodiment 1
[0047] Embodiment 1: as figure 1 As shown, a high-voltage electroscope pen includes an operating rod 1, a steering mechanism 2, and an electroscope head 3, and the top end of the electroscope head 3 is provided with an electroscope probe 31; the operating rod 1 includes a plurality of telescopic tubes 4, and the The telescopic tube 4 is a hollow structure, and is sequentially socketed through the telescopic mechanism 40, such as Figure 8-9 As shown, the telescoping mechanism 40 includes a bayonet part 41 at the bottom of the casing and a bayonet 42 on the side wall of the casing that cooperates with the bayonet part 41. The bayonet part 41 includes a sliding channel 43 and a sliding channel. 43 matching buckle 44, the buckle 44 includes a limit column 45 and a limit block 46, the limit block 46 is connected with the end of the slide channel 43 through a spring 47, the top surface of the limit column 45 is On the arc surface, the bayonet 42 on the inner side wall of the teles...
Embodiment 2
[0050] Embodiment 2: The difference from Example 1 is that the UV-resistant epoxy resin coating includes the following preparation method: (1) 2 parts of diethanolamine are placed in the reactor, and then 6 parts of secondary are slowly added at 70 ° C. For formaldehyde, add 3 parts of 2,4-dihydroxybenzophenone and 15 parts of methanol after 2 hours of heat preservation, and prepare modified 2,4-dihydroxybenzophenone after 3 hours of heat preservation;
[0051] (2) 5 parts of modified 2,4-dihydroxybenzophenone, 4 parts of thiopropanol acid are placed in 50 parts of acetone, add 6 parts of N,N-dicyclohexyl carbonate diimide, at 20 React at ℃ for 36 hours, remove the precipitate, place the product in ice water, wash and dry to prepare mercapto-modified 2,4-dihydroxybenzophenone;
[0052] (3) Submerge 3 parts of titanium dioxide into 2 wt % 2-bromo-2-methylpropionic acid (3-trimethoxysilyl) propyl ester ethanol solution for 12 hours, take it out and place it in 15 parts of hydrox...
Embodiment 3
[0055] Embodiment 3: The difference from Example 1 is that the UV-resistant epoxy resin coating includes the following preparation method: (1) 4 parts of diethanolamine are placed in the reactor, and then 12 parts of secondary For formaldehyde, add 5 parts of 2,4-dihydroxybenzophenone and 20 parts of methanol after 4 hours of heat preservation, and prepare modified 2,4-dihydroxybenzophenone after 5 hours of heat preservation;
[0056] (2) 8 parts of modified 2,4-dihydroxybenzophenone, 7 parts of thiopropanol acid are placed in 80 parts of acetone, add 8 parts of N,N-dicyclohexyl carbonate diimide, at 30 React at ℃ for 36 hours, remove the precipitate, place the product in ice water, wash and dry to prepare mercapto-modified 2,4-dihydroxybenzophenone;
[0057] (3) Submerge 5 parts of titanium dioxide into 4 wt % 2-bromo-2-methylpropionic acid (3-trimethoxysilyl) propyl ester ethanol solution for 12 hours, take it out and place it in 20 parts of hydroxyethylacrylamide , 2 parts...
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