Overflow blocking apparatus for tank lorry
OwnerYoung Soo CHOIinventor
Life of this patent
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Abstract
An overflow blocking apparatus for a tank lorry comprises: a main body (10) having a first cylinder (11) and a second cylinder (12) formed therein, a first air supply passage (13) connected to a side of the first cylinder, and a first air discharge passage (15) formed at one side; a piston (20) having one end connected to a rod (21) and the other end elastically supported with a spring (22); a lower main body (30) connected to the main body and having a lot hole (31) therein and a second air supply passage (32) and a second air discharge passage (33) connected to the wall of the lot hole; a lot (40) capable of reciprocating in the lot hole; a tube (50) provided in the form of wrapping the outer side of the lower main body; and a float (60) provided to be lifted by buoyancy of oil.
Claims9
An overflow blocking apparatus for a tank lorry, comprising:
- overflow sensors (A) disposed on top of a storage tank (T) to sense whether oil overflows, wherein each overflow sensor (A) comprises:
- a body (10) having a first cylinder (11) and a second cylinder (12) communicating with one side end portion of the first cylinder (11) disposed at the inside thereof, a first air supply passage (13) connected to the side periphery of the first cylinder (11) to introduce air thereinto, and a first air discharge passage (15) formed on one side thereof;
- a piston (20) reciprocated in the first cylinder (11) in such a manner as to be connected to a rod (21) reciprocating in the second cylinder (12) at one side end thereof and supported elastically against a spring (22) at the other side end thereof;
- a lower body (30) connected to the end of the second cylinder (12) of the body (10) and having a lot hole (31) formed at the center of the interior thereof and a second air supply passage (32) and a second air discharge passage (33) connected to the wall surface of the lot hole (31), the second air supply passage (32) communicating with the first air supply passage (14) and the second air discharge passage (33) communicating with the first air discharge passage (15);
- a lot (40) reciprocated in the state where the outer peripheral surface thereof comes into contact with the inner peripheral surface of the lot hole (31) and having a depressed groove (41) formed on one side of the outer peripheral surface thereof so that a space is formed between the outer and inner peripheral surfaces of the lot hole (31);
- a tube body (50) adapted to surround the outer periphery of the lower body (30), while having an internal space at the inside thereof;
- and
- a float (60) moved up in the internal space of the tube body (50) by means of the buoyancy of oil.
An overflow blocking apparatus for a tank lorry, comprising:
- overflow sensors (A) disposed on top of a storage tank (T) to sense whether oil overflows;
- and
- a ground sensor (70) electrically short-circuited by the air supplied when the overflow of the oil is sensed by the overflow sensors (A) to block the supply of the oil.
Dependencies are inferred from the claim text.