JP3747288B2 - Deodorizing device for rainwater - Google Patents

Description

  The present invention relates to a deodorizing device for rainwater that prevents a bad odor in a sewage main pipe from flowing back to rainwater provided in a gutter or the like of a road and released to the ground.

As disclosed in Patent Document 1 below, the conventional deodorizer for rainwater is provided in a closed position in which the inner lid dams rainwater, and the inner lid is closed by gravity above a certain level. The inner lid is provided with a flap piece that is pushed open by an increase in water from inside to allow overflow, and is rotatable about a horizontal horizontal axis.
Japanese Patent No. 3377515 Japanese Utility Model Publication No. 7-17893

  In the conventional rainwater deodorizing device, the flap piece is attached to the inner lid so as to be able to rotate through the horizontal horizontal axis, so that the structure is large and the structure becomes complicated. In addition to causing this, there was an illusion that the production of the deodorization device itself took time and productivity was lowered.

  An object of the present invention is to provide a deodorizer for rainwater that is easy to manufacture, has high productivity, and does not cause failure.

  The rainwater deodorizing device according to the invention of claim 1 is a vertical cylindrical body having a rectangular cross-section that can be inserted into the top, and a hook that is provided on the upper peripheral edge of the vertical cylindrical body and is latched on the lid peripheral edge mounting step. A fixed bottom plate that is provided at the lower end of one side wall of the vertical cylinder and closes substantially half of the lower end opening of the vertical cylinder, and is swingably attached to the lower end of the other side wall facing the one side wall. The bottom of the lower end opening is closed from the lower side with the attached balance weight, and the movable bottom plate that opens downward by the prescribed gravity of the inflowing rainwater, and the rectangular water overflow outlet opened in the fixed bottom plate is closed from the upper side by its own weight and the sewage book It has a rectangular flat lid that can be moved up and down by water increase on the tube side, and the cover has an elastic protrusion that extends downward from a pair of opposing edges of the water overflow outlet and has an outward projection for retaining at the lower end. A deformable hanging wall is also provided It is.

  Examples of the material for the entire lid for making the hanging wall elastically deformable include a stainless steel plate, a galvanized or tin-plated steel plate, and a synthetic resin plate having some elasticity. The rectangular flat lid may have a length in which at least two parallel sides out of the four surrounding sides protrude from both ends of the corresponding two sides of the overflow outlet.

    According to a second aspect of the present invention, in the rainwater deodorizing apparatus according to the first aspect, both the fixed bottom plate and the movable bottom plate are inclined inward and downward, and the gradient of the movable bottom plate is relatively steeper than the fixed bottom plate. It is what is.

  The fixed bottom plate should be inclined inward and downward in order to allow rainwater that has flowed down and collected to flow toward the open movable bottom plate, but the flat lid that covers the overflow outlet is smooth. In order to be able to move up and down, a gentle gradient close to horizontal is desirable.

    According to the deodorizing device for rainwater according to the first aspect of the present invention, a vertical cylindrical body having a rectangular cross-section that can be inserted into the rainwater, and a latch provided on the upper peripheral edge of the vertical cylindrical body, And a fixed bottom plate that is provided at the lower end of one side wall of the vertical cylinder and closes substantially half of the lower end opening of the vertical cylinder, and is swingably attached to the lower end of the other side wall facing the one side wall. The bottom of the body's lower end opening is closed from the lower side with the attached balance weight, and a movable bottom plate that opens downward by the prescribed gravity of the inflowing rainwater, and a lid that closes the rectangular water overflow outlet opened in the fixed bottom plate from the upper side by its own weight Therefore, if the buttock is hooked on the stepped portion and the periphery of the lid is placed on it, the vertical cylinder can be easily suspended in the air and the sewer The bad odor coming back from the pipe is blocked and released to the ground. It can be prevented from, it is also possible to prevent mosquito development in further increases bottom. When rainwater that has passed through the holes in the lid from the side grooves of the road and so on and flows into the vertical cylinders accumulates on both bottom plates and reaches a predetermined gravity that exceeds the closing force of the balance weight, the movable bottom plate moves downward. It flows down in the opening. In addition, the flat lid can be moved up and down by increasing the amount of water on the sewage main side, and the lid extends downward from a pair of opposite edges of the overflow outlet and protrudes outwardly at the lower end. As the sewage main side increases due to heavy rain, etc., the lid is pushed up by the water, and the overflow overflow outlet opens and the water overflows from here. Will not be destroyed by flooding. When the water retreats, the lid descends by its own weight and closes the overflow outlet again, but the vertical movement of the lid is smooth because the pair of hanging walls are guided by the pair of opposite edges of the overflow outlet and slide. The lid is opened and closed reliably. Furthermore, since both drooping walls can be elastically deformed, when installing the deodorization device into the overflow outlet, bend it inward by sandwiching the drooping walls from above the overflow overflow outlet. If the distance between the bottom ends is narrowed, both hanging walls will pass through the overflow outlet even though there is an outward bent part to prevent them from falling out. Close automatically. In this way, since no other member is required to incorporate the lid into the overflow outlet, the structure for supporting increased water is simplified, there is no mounting portion, no failure occurs, and the deodorization device itself is easy to manufacture and productivity is high. Good.

The best mode for carrying out the present invention will be described below with reference to the drawings. In addition,
In this embodiment, the direction is based on FIG. 3. The left is the left side of the figure, the right is the right side of the figure, the front is the front side of the page, and the rear is the back side of the page. And

    The odor prevention device for rainwater trough shown in the figure is manufactured by sheet metal working of galvanized steel sheet, and is installed in the vertical cylinder 2 with a substantially square cross-section that can be inserted into 1 and the upper edge of the vertical cylinder 2. A fixed bottom plate 6 that is integrally provided at the lower end of the right side wall 5 of the vertical cylinder 2 and closes substantially half of the lower end opening of the vertical cylinder 2 The remaining portion 8 of the lower end opening of the vertical cylindrical body 2 is swingably attached to the lower end of the left side wall 7 opposite to the right side wall 5 and is closed from the lower side by the attached balance weight 9 and has a predetermined gravity of the inflowing rainwater. The movable bottom plate 10 that opens downward by the bottom and the rectangular water overflow outlet 11 that is long before and after being opened in the fixed bottom plate 6 is closed from the upper side by its own weight and can be moved up and down by the water increase on the sewage main (not shown) side. It has a long rectangular flat lid 12 at the front and rear, and the lid 12 has a water overflow outlet 11 In which hanging wall 14 is provided with a stop for outward protrusion 13 exits from the front and rear opposite edges of the pair extending and lower end downwardly.

  The front and rear sides of the rectangular flat lid 12 have a length that protrudes from the front and rear sides of the water overflow outlet 11, and the left and right sides of the lid 12 are the left and right sides of the water overflow outlet 11. It is almost the same length as the side. Both the fixed bottom plate 6 and the movable bottom plate 10 are inclined inwardly downward, and the gradient of the movable bottom plate 10 is relatively steeper than that of the fixed bottom plate 6, but the gradient of the fixed bottom plate 6 is gentler to the horizontal. Is something.

  The vertical cylindrical body 2 is welded to a pair of left and right inclined plate-like portions 16 which are integral with the flange portion 4 and extend inward and downward from the left and right inner edges and have a vertical lower edge 15, and a vertical lower edge 15 of the left inclined plate-like portion 16. A left vertical plate 18 that has an inwardly facing lower edge 17 and serves as the left side wall 7, and a right side wall 5 that is welded to the vertical lower edge 15 of the right inclined plate-like portion 16 and has a fixed bottom plate 6 integrally therewith. And a vertical vertical plate 21 having a shape that is welded to the right vertical plate 19 to close the front and rear open portions thereof and has a horizontal outwardly facing upper edge 20 that is welded to the lower surface of the flange portion 4. Become. The movable bottom plate 10 has a bent left edge 22 and a bent right edge 23 that are bent downward at a right angle, and the left end portion of the movable bottom plate 10 is an inward downward lower edge 17 of the left vertical plate 18. The right end of the movable bottom plate 10 is bent outwardly and downwardly to the left end of the fixed bottom plate 6 and is provided on the extended plane of the inner downwardly facing lower edge 17 of the left vertical plate 18. It is made to contact | abut from below. On the right side of the bent left edge 22 of the movable bottom plate 10 is welded the upper end of a swing plate 25 that is perpendicular to the movable bottom plate 10 and has the same longitudinal length as the movable bottom plate 10. The bent left edge 22 and the upper end portion of the swing plate 25 are welded to the inwardly downward upper edge 27 of the swing plate 25 and the lower surface of the left end portion of the movable bottom plate 10, respectively. 3 hinges 26 are straddled on the left side of the left edge 22 of the movable bottom plate 10 and the lower half of the left vertical plate 18, and the upper half of the hinge 26 is attached to the left side wall 7. The lower half of the hinge 26 is attached to the upper edge of the curved left edge 22 and the swinging plate 25 superimposed thereon. At the lower end of the oscillating plate 25, there is provided a balance weight mounting portion 28 which is bent outward at a right angle, and two belt-like balance weights 29 are overlapped on the upper surface of the balance weight attaching portion 30. It is fixed by. The vertical portion 32 of the inverted L-shaped handle 31 is fixed in the middle of the vertical lower edge 15 of the right inclined plate-like portion 16 welded to the upper end portion of the right vertical plate 19, and It is easier to put in and out of 1.

  In the above, since the movable bottom plate 10 is in a normally closed state by the balance weight 29, the odor that flows backward from the sewage main along with the fixed bottom plate 6 is blocked, and the occurrence of mosquitoes at the bottom of 1 is also prevented. . Then, when rainwater that has passed through the plurality of holes 34 of the lid 33 and has flowed into the vertical cylindrical body 2 accumulates on the bottom plates 6 and 10, the movable bottom plate 10 opens downward due to its gravity, and the rainwater flows down into 1 Then, it reaches the sewage main through the drain pipe 35. Further, when the sewage main side is increased in water, the lid 12 is pushed up by water and the increased water overflow outlet 11 is opened. When the water retreats, the lid 10 descends by its own weight and closes the overflow outlet 11 again. When the lid 10 is moved up and down, the pair of hanging walls 14 are guided by the front and rear opposing edges of the overflow overflow outlet 11 and slide.

It is a vertical sectional view showing a state where the deodorizing apparatus according to the present invention is mounted on rainwater. It is a top view of the deodorizer for rainwater according to the present invention. FIG. 3 is an enlarged detailed sectional view taken along line III-III in FIG. It is a perspective view of the cover of a water overflow overflow exit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 2 Vertical cylinder 3 Lid part mounting step part 4 Ridge part 5 Right (one) side wall of vertical cylinder 6 Fixed bottom plate 7 Left (other) side wall of vertical cylinder 8 Opening of lower end of vertical cylinder Remaining 9 Balance weight
10 Movable bottom plate
11 Increased water overflow exit
12 lid
13 Outward protrusion for retaining wall
14 Hanging wall

Claims (2)

  A vertical cylinder with a rectangular cross-section that fits into the top, a collar provided on the upper edge of the vertical cylinder and hooked on the lid periphery mounting step, and provided at the lower end of one side wall of the vertical cylinder And a fixed bottom plate that covers substantially half of the lower end opening of the vertical cylinder, and a swingable attachment to the lower end of the other side wall facing the one side wall, and the balance of the lower end opening of the vertical cylinder is lowered by the attached balance weight. A movable bottom plate that closes from the bottom and opens downward due to the specified gravity of the inflowing rainwater, and a square that can be moved up and down by closing the rectangular overflow outlet that is opened in the fixed bottom plate from the upper side by its own weight and opening upward by increasing the water on the sewage main side A flat lid, and the lid is provided with an elastically deformable drooping wall that extends downward from a pair of opposite edges of the overflow outlet and has an outward projection for retaining at the lower end. Deodorization device. The deodorizer for rainwater according to claim 1, wherein both the fixed bottom plate and the movable bottom plate are inclined inward and downward, and the gradient of the movable bottom plate is relatively steeper than the fixed bottom plate.

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