JPH068522B2 - Material storage container sealing device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a material storage container, for example, a device for sealing a storage container, such as a storage container for storing an asphalt mixture which is a road paving material, which requires airtightness at a material discharge portion. It is about.

[Prior Art] Asphalt mixture has a tendency to undergo oxidative deterioration when exposed to air. Therefore, when it is stored in a storage container for a long period of time, it is necessary to block the intrusion of air into the container. Maintaining the airtightness of the gate part is an important issue, and various airtight mechanisms are incorporated. For example, Japanese Patent Publication Sho 58-3
Some inventions and inventions disclosed in Japanese Laid-Open Patent Publication No. 7197 or Japanese Utility Model Publication No. 59-31600 use a sealing liquid to seal a gate portion, but they employ a two-stage gate. .

[Problems to be Solved by the Invention] However, in a sealing device employing a two-stage gate, it is not easy to maintain and inspect the gate portion in the hermetically sealed chamber.

The present invention solves such conventional problems,
An object of the present invention is to provide a sealing device capable of maintaining airtightness even with a single-stage gate.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a gate for advancing and retracting in parallel with an opening surface of a material discharge portion of a material storage container to move to an open position and a closed position, and sliding the gate. A protruding body protruding downward is provided on the outer peripheral portion of the moving surface, and a moving body having a liquid reservoir portion into which the lower portion of the protruding body is inserted is attached to the gate. The reservoir part can be retracted from the material cutting side end of the sliding surface of the gate, and a cover body is fixed to the outer periphery of the material discharge part of the container substantially parallel to the gate, and the liquid reservoir part is provided on the outer periphery of the cover body. The lower part is inserted into the liquid reservoir of the cover and the liquid reservoir of the moving body to lower the upper part of the cover body and close the gap between the gate and the cover body to make it airtight. Providing a material storage container sealing device It is something to offer.

[Operation] According to the present invention, the gate is moved to the closed position to close the material discharge port, and the moving body is retracted to expose the liquid pool portion of the moving body from the material cutting side end of the sliding surface of the gate. Then, by lowering the sealing body and inserting the lower ends of both ends of the sealing body into the liquid storage portion of the cover body and the liquid storage portion of the moving body, the gap between the gate and the cover body is closed and sealed. Air from the inside is blocked and the airtightness of the material discharge part is maintained.

Further, when discharging the material stored in the material storage container, the sealing body is raised and the moving body is moved forward so that the liquid reservoir portion of the moving body is inward from the material cutting side end of the sliding surface of the gate. Push in and then advance the gate to open the material outlet.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a storage container body for storing asphalt mixture and the like, and a material discharge portion 2 at a lower end portion thereof is provided with a gate 3 which moves in parallel with an opening surface thereof to open and close the material discharge portion opening. . Bearings 4 are fixed to the four corners of the lower part of the gate 3, and shafts 6 having wheels 5 attached to both ends are pivotally supported, and are movable on rails 7 provided in parallel with the opening surface of the material discharge part 2. The tip of the piston rod 9 of the cylinder 8 fixed to the rail 7 is attached to the plate body 10 fixed to the gate 3, and the gate 3 is moved forward by the extension of the piston rod 9 of the cylinder 8 to discharge the material from the material discharge unit 2. The material is discharged, and the gate 3 is retracted by contracting the piston rod 9 to close the opening of the material discharging portion 2.

Reference numeral 11 denotes a projecting body which projects downwardly on the outer peripheral portion of the sliding surface 3a of the gate 3, and 12 denotes a moving body having a liquid reservoir 13 into which the lower portion of the projecting body 11 is inserted, and its four corners. The wheels 14 mounted on the rail 7 are placed on the rail 7 and can be moved back and forth along the rail 7. 15 is the moving body 12
1 is a cylinder for moving the cylinder, which is fixed to a mounting piece 16 fixed to the gate 3, and a piston rod 17 of which is attached to a plate body 18 fixed to the moving body 12, and is shown in FIG. As shown in FIG. 5, the liquid reservoir 13 of the moving body 12 is projected from the material cut-out side end 3b of the sliding surface 3a of the gate 3 and the moving body 12 is advanced by the extension of the piston rod 17. Further, the liquid reservoir 13 of the moving body 12 is pushed in from the material cut-out side end 3b of the sliding surface 3a of the gate 3 so that the material does not fall into the reservoir 13 when the gate 3 is opened and moved.

Reference numeral 19 is a cover body fixed to the material discharge portion 2 above the gate 3, and a liquid storage portion 20 for storing the sealing liquid is formed on the outer periphery thereof. Reference numeral 21 denotes a sealing body provided above the cover body 19, which closes and seals the gap between the gate 3 and the cover body 19, and expands and contracts the piston rod 23 of the cylinder 22 attached to the storage container body 1. It can be moved up and down by the
As shown in FIG. 1, the lower portion of the bent portion 21 a bent below one end portion of the sealing body 21 is the liquid storage portion 20 of the cover body 19.
The lower end of the bent portion 21b at the other end is inserted into the moving body 12
It is inserted into the liquid reservoir 13 and the gap between the gate 3 and the cover body 19 is closed and sealed.

Therefore, when the opening of the material discharge part 2 is kept closed, the opening of the material discharge part 2 is closed by the gate 3 and the piston rod 17 of the cylinder 15 for moving the moving body 12 is contracted as shown in FIG. Move the moving body 12 backward,
The liquid reservoir 13 of the moving body 12 is exposed from the material cut-out side end 3b of the sliding surface 3a of the gate 3, and the sealing body 21 is lowered so that the lower portion of the bent portion 21b is below the liquid reservoir of the moving body 12. Thirteen
Then, the lower portion of the bent portion 21a is inserted into the liquid reservoir portion 20 of the cover body 19 to seal the gap between the gate 3 and the material discharge portion 2. Then, when the material is discharged from the storage container body 1, the sealing body 21 is raised as shown in FIG. 5, the piston rod 17 of the cylinder 15 of the moving body 12 is extended to move the moving body 12 forward, and the gate is moved. The liquid reservoir 13 does not protrude from the material cut-out side end 3b of the sliding surface 3a of No. 3, and the piston rod 9 of the cylinder 8 of the gate 3 is extended to advance the gate 3 to discharge the material. .

[Effects of the Invention] As described above, in the present invention, the storage container body 1 is surrounded by the opening gate 3 of the material discharge part 2, the moving body 12, the cover body 19 and the sealing body 21, and a seal is provided between them. It is possible to completely block the invasion of outside air through the liquid reservoir for storing the working liquid, and to store the stored material such as the asphalt mixture in the storage container body 1 without being oxidized for a long time.

[Brief description of drawings]

FIG. 1 is a partially longitudinal front view showing an embodiment of the present invention, and FIG.
1 is a bottom view of FIG. 1, FIG. 3 is a sectional view taken along line AA of FIG. 1, FIG. 4 is a plan view of FIG. 1, and FIG. is there. 1 ... Storage container main body 2 ... Material discharge part 3 ... Gate 3a
... Sliding surface 3b ... End of material cutting side 5 ... Wheel 7 ...
Rail 11 ... Projection body 12 ... Moving body 13 ... Liquid reservoir
14 ... Wheels 19 ... Cover body 20 ... Liquid reservoir 21 ... Sealing bodies 21a, 21b ... Bent portions

Claims (1)

[Claims] 1. A gate for advancing and retracting in parallel with an opening surface for discharging material of a material storage container to move to an open position and a closed position is provided, and a protrusion protruding downward is provided on an outer peripheral portion of a sliding surface of the gate. A moving body having a liquid reservoir portion into which the lower portion of the projecting body is inserted is attached to the gate, and the moving body causes the liquid reservoir portion of the moving body to move from a material cut-out side end portion of the sliding surface of the gate. A cover body is secured to the outer periphery of the material discharge portion of the container substantially parallel to the gate, and a liquid reservoir is formed on the outer periphery of the cover body. A sealing device for a material storage container, wherein a lower part is inserted into a liquid reservoir and a liquid reservoir of the moving body to close a gap between a gate and a cover body to make it airtight so that it can be moved up and down. .