JP3216957B2 - Outdoor escalator drainage device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage device provided on an outdoor escalator.

[0002]

2. Description of the Related Art According to Japanese Utility Model Laid-Open Publication No. 64-36387, there is known a drainage device for an outdoor escalator in which an oil adsorbent for adsorbing oil and permeating water is installed in a drain port.

[0003]

In the prior art, an oil adsorbent that adsorbs oil and allows water to permeate is installed in a drain port. Therefore, if the oil adsorbent is clogged with dirt or dust, the drainage water is drained. The mouth is blocked and drainage from the drainage port is stopped. As a result, water pools are formed in the oil pan, which causes a problem of rust. In addition, when the water pool increases and overflows from the oil pan, the water flows into the exterior plate covering the truss-shaped frame, and thereafter, the drainage that seeps from the seam portion of the exterior plate causes a passerby under the escalator and There is a problem of soiling the product.

[0004] It is an object of the present invention to provide a drainage device for an outdoor escalator that eliminates these problems.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an oil pan which covers the bottom of a frame and has a drain, and an oil adsorbent which adsorbs oil to the oil pan and allows water to permeate. In the located outdoor escalator drain device, the drain port is opened downstream of the oil pan surface.
Then , the oil adsorbent was disposed on the oil pan surface, which was distant to the upstream side without blocking the drain port.

[0006]

According to the above-mentioned structure, normally, the oil mixed in the waste water is removed by the oil adsorbent and then becomes a water state and flows out to the drain port. If the sorbent is clogged with dirt, dust, etc., the drainage containing the oil passes over the sorbent without passing through the interior of the sorbent, and is discharged from the drain opening on the oil pan surface. You. Therefore, although the oil adsorption performance is reduced, the drainage port is not blocked, and there is no fear that the drainage performance is impaired.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a side view of the lower frame of the escalator. Reference numeral 1 denotes an escalator body frame whose bottom is covered by an oil pan 2. This oil pan 2
A drain port 3 is opened in the vicinity of the end of the escalator body frame 1 on the surface. An oil adsorbent 4 is provided on an oil adsorbent storage case 5
Is arranged by. The oil absorbent storage case 5 is fixed to the escalator body frame 1 by a fixing bracket 6.
It is fixed to.

An oil adsorbent 4 made of a special synthetic resin and having an excellent oil adsorbing property and an oil retaining ability is provided on the surface of the oil pan 2 which is upstream from the drain port 3 which is opened on the surface of the oil pan 2. Are located.

In this way, the normal drain passage passes through the interior of the oil adsorbent 4 as shown by the solid arrow 8, and only the oil is adsorbed and removed, and only the water flows out to the drain port 3. . If the oil adsorbent 4 is abnormally clogged with dirt, dust, or the like, the drain flow path passes over the oil adsorbent 4 and flows out to the drain port 3 as indicated by a dotted arrow 9.

Since the oil adsorbent 4 is light in weight, if it is placed as a single product, the oil adsorbent 4 may be displaced due to water pressure or the like, thereby blocking the drain port 3 opened on the surface of the oil pan 2 and making the drainage impervious. Therefore, the oil adsorbent storage case 5 is housed in the oil adsorbent storage case 5, and the oil adsorbent storage case 5 is mounted on the escalator body frame 1.

The oil adsorbent storage case 5 has an L-shaped side plate 5a having a length substantially equal to the inner diameter of the escalator main body frame 1 and having a plurality of holes, and a closing member having a plurality of holes divided into a plurality of pieces. It is composed of a cover 5b, and bolts 7 for fixing the side plate 5a and the closing cover 5b. Further, the oil adsorbent storage case 5 is preliminarily mounted on the escalator body frame 1.
Is fixed with bolts 7 to a fixing bracket 6 attached to the bracket.

[0013]

According to the present invention, the oil adsorbent is disposed on the oil pan surface, which is located upstream from the position where the drain port on the oil pan surface opens, so that the oil adsorbent is liable to be contaminated by dirt and dust. Even in the case of clogging, the wastewater flows over the oil adsorbent and flows out to the drain port, so there is no fear of overflowing from the oil pan.

Since the oil adsorbent is stored in the oil adsorbent storage case, the displacement of the oil adsorbent can be prevented, and the drainage (oil mixed water) can be reliably transmitted.

Since the closing cover has a bolted structure, the interval between the oil adsorbents can be easily achieved simply by attaching and detaching the closing cover.

Since the L-shaped side plate has a removable structure, there is no partition on the oil pan, so that the cleaning operation can be easily performed.

[Brief description of the drawings]

FIG. 1 is a side view of an escalator lower frame according to the present invention.

FIG. 2 is a plan view of FIG. 1;

FIG. 3 is a vertical sectional side view showing the vicinity of the oil adsorbent of FIG. 1;

[Explanation of symbols]

1 ... escalator body frame, 2 ... oil pan, 3 ...
Drain outlet, 4 ... oil absorbent, 5 ... oil absorbent storage case, 6 ...
Fixed bracket.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho-51-127596 (JP, U) Japanese Utility Model Sho-64-36387 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) B66B 23/00

Claims (3)

(57) [Claims] 1. An outdoor escalator drain device in which an oil pan covering a bottom portion of a frame and having a drain port and an oil adsorbent for adsorbing oil and allowing water to permeate the oil pan are located in the oil pan. Opening on the downstream side of the oil pan surface
Is allowed, the drainage device of outdoor escalator, characterized in that a said oil adsorbent on the oil pan surface spaced upstream not block the drain port. 2. The drain device for an outdoor escalator according to claim 1, wherein said oil adsorbent is stored in an oil adsorbent storage case detachable from said frame. 3. The outdoor escalator drainage device according to claim 1, wherein said oil sorbent is stored in an oil sorbent storage case having a plurality of holes.