A leak-proof plastic storage tank

Abstract

The utility model discloses a kind of plastic storage tanks of anti-leakage, including storage tank main body and the sealing cover body compatible with storage tank main body, the outer surface of the storage tank main body is fixedly connected with two square housings, the outer surface of the sealing cover body is fixedly connected with sealing assembly, the upper surface of the sealing cover body is fixedly connected with two with mouth insertion block, the inner wall of each square housing is fixedly connected with long slide column.This device is inserted into with mouth insertion block by with mouth insertion block and insertion rod and square housing and notch mutual cooperation and realizes preliminary clamping, cooperate pulling rod to drive sliding plate compression extension spring, make insertion rod insert with mouth insertion block, form secondary clamping, ensure that sealing cover body and storage tank main body are closely connected, three sealed defense lines are formed by main sealing ring, middle sealing ring and vice sealing ring in sealing assembly, different material and shape sealing ring mutually cooperate, can better adhere storage tank main body, effectively block liquid or gas leakage, greatly improve sealing effect.

Claims

1. A leak-proof plastic storage tank characterized by: The system includes a storage tank body (1) and a sealing cover body (2) adapted to the storage tank body (1). Two square shells (6) are fixedly connected to the outer surface of the storage tank body (1). A sealing assembly (5) is fixedly connected to the outer surface of the sealing cover body (2). Two plug blocks (4) with openings are fixedly connected to the upper surface of the sealing cover body (2). A long sliding column (8) is fixedly connected to the inner wall of each square shell (6). A sliding plate (9) is slidably connected to the outer surface of each long sliding column (8). A transmission rod (13) is fixedly connected to the outer surface of each sliding plate (9). A plug rod (14) adapted to the plug block (4) is fixedly connected to the outer surface of each transmission rod (13). A telescopic spring (10) and a pulling rod (11) are fixedly connected to the outer surface of each sliding plate (9). One end of each telescopic spring (10) is fixedly connected to the inner wall of the square shell (6).

2. A leak-proof plastic storage tank as claimed in claim 1, wherein: Each of the square housings (6) has a square plate (12) with an opening fixedly connected to its inner wall, and each of the transmission rods (13) is slidably connected to the square plate (12) with an opening.

3. A leak-proof plastic storage tank as claimed in claim 1, wherein: Each of the square shells (6) has a notch (7) on its outer surface, and the notch (7) is matched in size with the slotted insert (4).

4. A leakproof plastic storage tank as defined in claim 1, wherein: A rotary handle (3) is fixedly connected to the upper surface of the sealing cover body (2).

5. A leakproof plastic storage tank as defined in claim 1, wherein: The sealing assembly (5) includes a main sealing ring (501) and a secondary sealing ring (503) fixedly connected to the outer surface of the sealing cover body (2), and a middle sealing ring (502) is provided between the main sealing ring (501) and the secondary sealing ring (503).

6. A leakproof plastic storage tank as defined in claim 5, wherein: The main sealing ring (501) is made of fluororubber and has a circular cross-section, while the secondary sealing ring (503) is made of silicone rubber and has a trapezoidal cross-section.

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