JPS6243926Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a discharge lid device for a rotating storage tank.

In general, in high-rise buildings, as shown in Figure 1, garbage is introduced into a dust chute 2 from an input chute 1 provided on each floor, and is temporarily stored in a storage tank 3 provided on the lowest floor (usually a basement). A garbage collection device is provided.

In recent years, a rotating storage tank that rotates around a horizontal axis has been used as the storage tank 3.

As shown in FIG. 2, the rotary storage tank 3 is provided with a discharge lid device 5 for opening and closing the discharge port 4 thereof. This discharge lid device 5 includes a discharge lid 6 and a discharge lid 6.
It is comprised of a support device 4 that rotatably supports the device and moves it forward and backward toward the discharge port 4.

However, the conventional discharge lid device shown in FIG. 4 has the following disadvantages.

That is, as shown in FIG. 2, the discharge lid 6 is attached to a movable body 11 that is moved forward and backward toward the discharge port 4 by an electric cylinder 8, a plunger 9, and a slide bar 10 of a support device 7. Conventionally, as shown in FIG. 4, a discharge lid 6 is rotatably attached to a shaft 12 fixed to the lower end of a moving body 11 with a radial bearing 13. Therefore, in the conventional device, since the discharge lid 6 only moves in parallel with the moving body 11, the central axis 12a of the shaft 12 and the rotating storage tank 3
It is not possible to make the amount of eccentricity e with respect to the rotation center axis 3a zero, and it is also impossible to make the deflection angle θ of both the center axes 3a and 12a zero. Therefore, the ring-shaped seal packing 14 attached to the inner surface of the discharge lid 6 and the end face of the discharge port 4 do not come into close contact uniformly over the entire circumference, making it impossible to completely close the discharge port 4. Otherwise, there was a problem that dust could get caught between the seal packing 14 and the end face of the discharge port 4. In addition, since the discharge lid 6 and the rotating storage tank 3 cannot be rotated concentrically, an abnormal load is applied to the radial bearing 13, which may cause early damage to the radial bearing 13, or the discharge port 4 may be completely closed. In order to close the discharge port 4, the seal packing 14 had to be strongly pressed against the end face of the discharge port 4, which caused problems such as early deterioration of the seal packing 14.

The present invention was developed in view of these points, and the discharge lid and rotating storage tank can be rotated concentrically at all times, the discharge port can be reliably blocked, and it has excellent durability. An object of the present invention is to provide a discharge lid device for a rotating storage tank.

The present invention will be described below with reference to embodiments shown in FIGS. 2 and 3.

In the present invention, as shown in FIG. 3, a hollow housing 15 is fixed to the lower end of the movable body 7, and a shaft 16 is installed in the housing 15 with its central axis 16a aligned with the rotational central axis 3a of the rotating storage tank 3. They are inserted almost concentrically. A ring 17 is fitted into the shaft 16 at a position extending from the inside to the outside of the housing 15, and the inner flange 17a of this ring 17
A radial gap 18 of a distance ε is provided between the ring 17 and the inner peripheral surface of the housing 15, and an axial gap 25 of the distance is provided between the outer flange 17b of the ring 17 and the distal end surface of the housing 15. It is being Therefore, the shaft 16 is movable in the axial and radial directions through the gaps 18 and 25, and the housing 15
installed on. and the radial gap 18
The size ε is larger than the eccentricity e between the central axis 16a of the shaft 16 and the rotational central axis 3a of the rotating storage tank 3. At the tip of this shaft 16,
The discharge lid 6 is attached with a spherical bearing 19 so as to be swingable. The swing angle of this discharge lid 6 is set to be larger than the deflection angle θ of both central axes 3a, 16a. Furthermore, a compression spring 20 is mounted inside the housing 15 on the outer periphery of the shaft 16 to press the ring 17 in the direction of the discharge port 3 . The compression spring 20 elastically presses the discharge lid 6 toward the discharge port 3.

Next, the effects of this embodiment will be explained.

When closing the discharge lid 6 which is in the open state shown in FIG. 2, first the plunger 9 of the electric cylinder 8 is pulled back to the right in the figure. As a result, the movable body 11 along with the slide bar 10 is guided by the guide 23 and moves to the right, the discharge lid 6 approaches the discharge port 4, and the seal packing 14 seals the end surface of the discharge port 4 as shown in FIG. come into contact with. When the movable body 11 moves further to the right, the seal packing 14 elastically contracts, and the end surface of the flange 6b of the discharge lid 6 comes into contact with a stopper 24 protruding from the outer periphery of the rotating storage tank 3. When the movable body 11 moves further to the right, the inner flange 17a of the ring 17 separates from the tip of the housing 15, and only the pressing force of the compression spring 20 is applied to the discharge lid 6. In this state, the moving body 11 stops moving to the right.
At this time, since the discharge lid 6 is attached to the shaft 16 with a spherical bearing 19, it moves around the spherical bearing 19 so that the angle of deviation between the rotating storage tank 3 and the shaft 16 is zero, and the seal packing 14 acts so as to uniformly contact the entire circumference of the discharge port 4.

With the discharge lid 6 closed, the rotating storage tank 3, which is rotatably supported by a fixing ring 22 with a slipper seal 21 provided on the outer periphery (see FIG. 2), is moved by a rotational drive device (not shown). Rotate. As the rotary storage tank 3 rotates, the discharge lid 6 also rotates together. The discharge lid 6 aligns its own rotation center, that is, the rotation center of the spherical bearing 19, with the rotation center of the rotating storage tank 3 through a self-aligning action caused by rotational force. This self-centering effect is caused by the fact that the shaft 16 is connected to the housing 15.
It is mounted so that it can move freely in the radial direction, so it can be moved smoothly.

As a result, the discharge lid 6 rotates at the same speed as the rotational storage tank 3 with its rotating shaft being supported concentrically with the rotation center 3a of the rotational storage tank 3 without eccentricity or deviation.

Opening the discharge lid 6 stops the rotating storage tank 3,
This is done by protruding the plunger 9 of the electric cylinder 8.

Since the discharge lid device for a rotary storage tank of the present invention is constructed and operates in this way, it is possible to rotate the discharge lid and the rotary storage tank in a state where they are reliably supported concentrically, and there is no seal packing. Since the end face of the outlet and the outlet can be brought into close contact uniformly over the entire circumference, the outlet can be reliably closed, and there is no possibility of dust getting caught in the outlet, and there is no abnormal stress on each component. It has the effect of being excellent in durability without causing any adverse effects.

Note that other elastic materials other than the compression spring can be used as the elastic body that presses the discharge lid toward the discharge port.

[Brief explanation of the drawing]

Figure 1 is a sectional view of a high-rise building equipped with a rotating storage tank, Figures 2 and 3 show an embodiment of the rotating storage tank discharge lid device of the present invention, and Figure 2 is a longitudinal sectional side view of the entire building. , FIG. 3 is an enlarged sectional view of the discharge lid, and FIG. 4 is a view similar to FIG. 3 of the conventional device. 3... Rotating storage tank, 4... Discharge port, 5... Discharge lid device, 6... Discharge lid, 7... Support device, 11...
... moving body, 16 ... shaft, 19 ... spherical bearing, 20 ... compression spring (elastic body).

Claims (1)

[Scope of utility model registration request] In the discharge lid device for a rotary storage tank, the discharge lid device includes a discharge lid for the rotary storage tank, and a support device that rotatably supports the discharge lid and moves it forward and backward toward the discharge port of the rotary storage tank. A moving body that advances and retreats toward the outlet; a hollow housing supported by the moving body; a shaft movably inserted into the shaft, a spherical bearing fixed to the tip of the shaft, and a ring fitted on the shaft of the shaft inside the spherical bearing;
The ring has an elastic body that applies a pressing force toward the discharge port, and the discharge lid is swingably supported at the tip of the shaft via the spherical bearing. Rotating storage tank discharge lid device.