An automatic lifting angle adjustable double-sided table based on sensor control and its working method
An automatic lifting and adjustable technology, which is applied to the direction of extendable table, the legs of general furniture, and the table with variable table height, etc. It can solve the problem of valuables on the table that are easy to break, folding table is unstable, and the table is easy to be overturned and other problems, to achieve the effect of compact structure, small space occupation and high degree of automation
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Embodiment 1
[0045] Manufacture pole 1-4-8-1 of the present invention according to the following steps, and in parts by weight:
[0046] Step 1: Add 4120 parts of ultrapure water with a conductivity of 3.22μS / cm into the reactor, start the stirrer in the reactor at a speed of 160rpm, start the heating pump, and raise the temperature in the reactor to 127°C; add in sequence 81 parts of (3-phenoxyphenyl)methyl-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate, 2-[4-(4-chlorobenzene 168 parts of formyl)phenoxy]-2-methylpropanoic acid, 2,3,5,6-tetrafluoro-4-methylbenzyl (Z)-(1RS,3RS)-3-(2-chloro 59 parts of -2,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate, stir until completely dissolved, adjust the pH value to 3.5, and adjust the stirrer speed to 81rpm , the temperature was 156°C, and the esterification reaction was carried out for 13 hours;
[0047] Step 2: Take 130 parts of 5-hydroxy-4-(p-hydroxybenzyl)-3',3-dimethoxybibenzyl, N,N'-[3,3'-dichloro[1,1' -biphenyl]-4...
Embodiment 2
[0052] Manufacture pole 1-4-8-1 of the present invention according to the following steps, and in parts by weight:
[0053]Step 1: Add 5360 parts of ultrapure water with a conductivity of 6.85μS / cm into the reactor, start the stirrer in the reactor at a speed of 264rpm, start the heating pump, and raise the temperature in the reactor to 173°C; add in sequence 285 parts of (3-phenoxyphenyl)methyl-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate, 2-[4-(4-chlorobenzene 292 parts of formyl)phenoxy]-2-methylpropionic acid, 2,3,5,6-tetrafluoro-4-methylbenzyl (Z)-(1RS,3RS)-3-(2-chloro 82 parts of -2,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate, stir until completely dissolved, adjust the pH value to 8.6, and adjust the stirrer speed to 192rpm , the temperature was 212°C, and the esterification reaction was carried out for 20 hours;
[0054] Step 2: Take 173 parts of 5-hydroxy-4-(p-hydroxybenzyl)-3',3-dimethoxybibenzyl, N,N'-[3,3'-dichloro[1,1' -biphenyl]-...
Embodiment 3
[0059] Manufacture pole 1-4-8-1 of the present invention according to the following steps, and in parts by weight:
[0060] Step 1: Add 4730 parts of ultrapure water with a conductivity of 4.93μS / cm into the reactor, start the stirrer in the reactor at a speed of 212rpm, start the heating pump, and raise the temperature in the reactor to 148°C; add in sequence 181 parts of (3-phenoxyphenyl)methyl-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate, 2-[4-(4-chlorobenzene Formyl)phenoxy]-2-methylpropionic acid 235 parts, 2,3,5,6-tetrafluoro-4-methylbenzyl (Z)-(1RS,3RS)-3-(2-chloro -69 parts of -2,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate, stir until completely dissolved, adjust the pH value to 6.1, and adjust the stirrer speed to 136rpm , the temperature was 186°C, and the esterification reaction was carried out for 16 hours;
[0061] Step 2: Take 151 parts of 5-hydroxy-4-(p-hydroxybenzyl)-3',3-dimethoxybibenzyl, N,N'-[3,3'-dichloro[1,1' -biphenyl]-4...
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