JPH0326078Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a sealing device between abutting panels of a hatch cover.

(Prior Art) Conventionally, a sealing device as shown in FIG. 4 has been known for sealing between panels of a hatch cover that are abutted against each other.

Tightening bars 2A, 2B are arranged in parallel on the edges of opposite ends of the panels 1A, 1B, and a seal frame 4 equipped with gaskets 3A, 3B that press against the respective tightening bars 2A, 2B is attached to one panel. It is rotatably supported on the edge of 1A via a support shaft 9.

Patsukin 3A, 3B, tightening bar 2A,
A tightening arm 5 having a roller 8 is rotatably provided on the other panel 1B via a support shaft 7 in order to tighten it from the back side of the seal frame 4 while in contact with the panel 2B.

When opening the hatch cover, the tightening arm 5 is rotated upward by a hydraulic drive device (not shown) or manually, and then the seal frame 4 is rotated clockwise by a hydraulic drive device (not shown) or manually. Tightening bar 2 on 3B
By completely removing from A and 2B, panel 1
Allows movement of A and 1B.

(Problem to be solved by the invention) However, according to this sealing device, if it is attempted to automate using hydraulic pressure to drive the tightening arm 5 and the seal frame 4, it is necessary to provide separate hydraulic drive devices for each. This not only complicates the structure, but also causes problems such as poor operability and maintainability since each hydraulic drive device must be operated independently.

The present invention was proposed to solve such problems.

(Means for Solving the Problems) Therefore, the present invention supports a seal frame, in which a seal frame is provided in parallel with packings that press against each panel at the butting ends of the hatch panels, and is rotatably supported on one panel.
A hydraulic cylinder is connected to the rotational base end of this seal frame via a triangular link, and a tightening lever is rotatably supported at the rotational tip side via an interlocking shaft. The two panels are connected to each other via a connecting link, and a stopper is provided protruding from the other panel at the tip of rotation of the tightening lever.

(Function) Therefore, in order to release the tightening, when the hydraulic cylinder is driven in the retracting direction, the tightening lever rotates via the triangular link, and after releasing the engagement with the stopper, the entire seal frame is moved. The gasket is rotated, moves away from the panel contact surface, and is completely retracted to one panel side in its most contracted state.

To tighten, the hydraulic cylinder is extended in the opposite direction to the above, and after the seal frame rotates under its own weight and the seal contacts the panel, the tightening lever is rotated by the triangular link.
It engages with the stopper and brings the gasket into close contact with the panel to create a seal.

(Example) FIG. 1 shows an embodiment of the present invention.

A seal frame 4, which includes gaskets 3A and 3B on one panel 1A, is rotatably connected to a bracket 10 by pins at opposite edges of the panels 1A and 1B. When the seal frame 4 is closed, the gaskets 3A and 3B are connected to one panel 1A and the other panel 1.
Press each edge of B to seal.

A piston rod of a driving hydraulic cylinder 12 is connected to the rotation base end side of the seal frame 4 via a triangular link 11. The hydraulic cylinder 12 is pin-coupled to the panel 1A.

In the tightened state, the triangular link 11 is connected to the seal frame 4 by a pin 13 at the bottom corner of the triangle, and to the hydraulic cylinder 12 by a pin 14 at its apex.

A tightening lever 15 is rotatably supported on the rotation end side of the seal frame 4 via an interlocking shaft 16.

The tightening lever 15 abuts from below a stopper 18 having an adjustment screw 17 provided on the other panel 1B, and its tightening reaction force presses the gaskets 3A, 3B against the edge of the panel.

This tightening lever 15 is connected to the triangular link 11 by a connecting link 19 via pins 21 and 22.

The pin 21 is connected to the interlocking shaft 16 with respect to the tightening lever 15.
The pin 22 is located approximately below the triangular link 11.
located at the bottom corner of and hydraulic cylinder 12
In the tightened state, the pin 22 is located below the line connecting the pins 21 and 13 and is configured to abut against the upper surface of the seal frame 4.

The structure is as described above, and then the first
This will be explained with reference to FIGS.

Figure 1 shows the hatch cover closed and the seals 3A, 3.
B is shown in a tightened state, and in order to release it, the hydraulic cylinder 12 is contracted.

As the hydraulic cylinder 12 contracts, the triangular link 1
A rotational force is applied to the seal frame 4 in the clockwise direction through the stopper 1, but the tightening lever 15
8, the seal frame 4 does not rise.

For this purpose, as shown in FIG. 2, the pin 14 located at the apex of the triangular link 11 rotates about the pin 13, thereby pulling the connecting link 19 and tightening lever 15 around the connecting shaft 16. rotates counterclockwise, and the tightening lever 15 separates from the stopper 18. After the lower end of the tightening lever 15 comes into contact with the upper surface of the seal frame 4, as the hydraulic cylinder 12 contracts, the seal frame 4
begins to rotate clockwise with reference to the bracket 10. As shown in FIG. 3, when the hydraulic cylinder 12 is in the most contracted state, the seal frame 4 is completely retracted toward the panel 1A, moves to a position where it does not interfere with the panel 1B, and comes to rest with the help of center of gravity balance.

After releasing the tightened state in this manner, the panels 1A and 1B are moved.

On the other hand, in order to close and tighten the hatch cover, with the panels 1A and 1B butted against each other, if the hydraulic cylinder 12 is extended in the opposite manner to the above, the seal frame 4 will be moved to the third position by its own weight.
It closes from the figure to the state shown in Figure 1, and eventually the seals 3A, 3B come into contact with the panels 1A, 1B, and then the tightening lever 15 rotates via the triangular link 11 and is locked to the stopper 18 from below. to complete tightening.

By the way, in this tightened state, the link mechanism constituted by the triangular link 11, the connecting link 19, and the tightening lever 15, the pin 22 in the tightening process.
moves to the opposite side of the line connecting pins 21 and 13 and passes through the dead point, sealing frame 4.
Since it comes into contact with the upper surface, the tightening lever 1 can be moved even if the hydraulic pressure holding force of the hydraulic cylinder 12 does not work in the tightening position.
5 will not loosen and can be securely tightened and held without applying hydraulic pressure.

(Effects of the invention) As described above, according to the invention, the seal can be tightened, held and released by a single hydraulic drive device, which not only simplifies the structure but also improves its operability. effective. Also, since the link mechanism is mechanically locked in the tightened state,
The tightening force of the seal does not weaken during the voyage, ensuring reliable sealing performance.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the main part showing an embodiment of the present invention, and FIGS. 2 and 3 are sectional views of the main part showing the same operating state. FIG. 4 is a sectional view of a conventional device. 1A, 1B... Panel, 3A, 3B... Packing,... Seal frame, 11... Triangular link, 12... Hydraulic cylinder, 15... Tightening lever, 18... Stopper, 16... Connection link, 1
3, 14, 21, 22...pin.

Claims (1)

[Scope of utility model registration request] A seal frame in which gaskets are placed in pressure contact with each panel at the abutting ends of the hatch panels is rotatably supported on one panel, and a hydraulic cylinder is connected to the base end of the seal frame via a triangular link. At the same time, a tightening lever is rotatably supported on the rotation end side via an interlocking shaft, the triangular link and the tightening lever are connected via a connecting link, and the tightening lever is rotated. An inter-panel sealing device for a hatch cover, characterized in that a stopper is located at the tip of the movable panel and protrudes from the other panel.