JPH0734524A - Odor leakage prevention device - Google Patents

Abstract

PURPOSE:To prevent odors, such as gas odor from leaking outside by allowing a definite amount of refuses, which are collected on the top of a cover pivoted in a deviating position to drop into a basin by turning round the cover. CONSTITUTION:One end of each of Hume pipes 2 and 3 is opened and communicated with the lower end of a manhole 1 while a grating 4 is mounted to the top of the basin 1. A pivot is installed on an inner wall of the basin 1 on the opposite side. A cover plate 8 is installed to the pivot in such a fashion that it may make a seesaw motion. Refuses deposited on the surface of a street or rain water are adapted to pass through the mesh of the grating 4 and drop on the top of the cover 8, thereby turning the cover 8, centering on the pivot and dropping the refuses collected on the top of the cover 8 into the basin 1. It is, therefore, possible to prevent odors from leaking outside from the grating since the top of the manhole is covered.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an odor leakage preventive device for preventing gas, odor, etc. generated inside a container from leaking to the outside by trapping it inside the container.

[0002]

2. Description of the Related Art Conventionally, as a device for sending dust and the like on the road surface into rainwater and the like into a fume pipe buried underground, the fume pipe is opened and communicated with the lower end of a mound buried in the ground, and the upper surface of the mould is flush with the road surface. There is an opening, and a grating is placed in the opening. Then, dust and the like on the road surface, together with rainwater and the like, pass through the mesh of grating and flow down into the basin, and are sent from the fume pipe to the sewage treatment plant.

[0003]

However, in the device described in the above-mentioned prior art, the odor of the sewage flowing in the fume pipe leaks to the outside from the inside of the basin as it passes through the mesh of grating and leaks to the road. There was a problem that it was a cause of bad smell pollution.

Therefore, according to the present invention, by providing a lid plate that rotates on the upper surface of the grid, in the normal state, the upper surface opening of the grid is closed and dust on the road surface sent through the mesh of grating, When the amount of dirty water etc. exceeds a certain amount, it will rotate and in the smallest open state dust etc. will flow into the fume pipe and will be sent to the fume pipe, so that the offensive odor of gas etc. generated in the container will not leak to the road. It is an object of the present invention to provide an odor leakage preventive device that can limit the amount of odor leaked out.

[0005]

In order to achieve the above object, in a device for preventing odor leakage of the present invention, a fume tube is opened and communicated with a lower end of the device, and an upper part of an opposing inner wall of a rod having a grating attached to an upper surface thereof. A support shaft is provided at a position deviated from the horizontal center of the opposing inner side wall, and a cover plate is attached to the support shaft so that the seesaw can move.

[0006]

Operation: Dust, rainwater, etc. that have passed through the mesh of the grating fall on the upper surface of the cover plate according to the law of universal gravitation. When more than a certain weight of rainwater, etc. is stored on the top surface of the cover plate, the cover plate rotates due to its gravity, and the stored rainwater, etc. falls into the basin and mixes with the sewage flowing from the basin to the fume pipe. It is sent to the sewage treatment plant.

When the stored material on the upper surface of the cover plate is removed, the cover plate rotates about the support shaft and returns to the horizontal state. The lid plate has an action of preventing odor leakage due to the action of closing the lid in the upper portion of the container.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, one end of the fume tubes 2 and 3 is openly communicated with the lower end of the container 1. Reference numeral 4 denotes a grating, which is a hard member formed in a mesh shape, is attached to the upper surface of the grid 1, and constitutes a part of the road surface 5.
A spindle 7 is attached along the flow path of the dirty water 6 flowing through the fume pipes 2 and 3 so as to be at a right angle to the opposing inner side walls of the basin 1 provided substantially in parallel. A cover plate 8 is attached to the support shaft 7 so that the seesaw can move. As shown in FIG. 2, in this embodiment, the outer wall of the frame 9 is formed tightly on the inner wall of the rod 1, and the bearing 10 is located at a position significantly deviated from the longitudinal center of the frame 9. 10 are installed opposite to each other. Reference numeral 8 denotes a lid, which is formed in a shape corresponding to the planar shape of the inner cavity portion of the frame 9 and also has bearings 10 and 1
The support shafts 7, 7 are attached at positions corresponding to 0. Reference numeral 11 denotes a weight, which is attached to the shorter back surface of the cover plate 8 about the support shafts 7, 7. The distance from the support shaft 7 until the opposite ends of the cover plate 8, the shorter the l _1, the longer the l _2, and then, towards the m ₁ short weight of the cover plate _8, the longer the m _2, the weight 11 When the weight is m ₃ , it is configured to have a relationship of l ₁ (m ₁ + m ₃ ) = l ₂ m ₂ . The frame 9 is fixed to the inner wall of the basin 1.

When there is a distance between the inner wall of the basin 1 and the frame 9, a mounting frame 12 is attached to the outer periphery of the frame 9 as shown in FIG. It is also possible that it sticks to the.

Next, the operation of this embodiment will be described. Dust, rainwater, etc. on the road surface 5 passes through the mesh of the grating 4,
It falls on the upper surface of the lid plate 8 which is kept horizontal. Since the support shafts 7, 7 are provided at positions that are significantly deviated along the flow path direction, most of the dust, rainwater, etc. have a large area,
It collects in the longer distance from the support shafts 7, 7 to the edge of the cover plate 8. If the weight of dust, rainwater, etc. collected on the upper surface of the cover plate 8 is m ₄ , then l ₁ (m ₁ + m ₃ ) <l ₂ (m ₂ +
In the relationship of m ₄ ), the cover plate 8 rotates about the support shafts 7, 7 and drops dust, rainwater, etc. accumulated on the upper surface of the cover plate 8 into the basin 1. Dust, rainwater, etc. accumulated on the upper surface of the cover plate 8, which is shorter than the support shafts 7 of the cover plate 8, are also separated from the upper surface of the cover plate 8 by the reaction of the rotation of the cover plate 8, that is, the reaction. Falls into the basin 1. After dropping, the cover plate 8 returns to the equilibrium state and becomes horizontal again, and the upper surface of the container 1 is closed to prevent gas and odor from leaking from the grating 4 to the outside. Hume tube 2 for falling dust, rainwater, etc.
It flows into the fume pipe 3 by the flow force of the sewage that has flowed further.

[0012]

According to the present invention, since a support shaft is provided at an eccentric position and dust and the like accumulated on the upper surface of the lid body by a certain amount are dropped into the container by the rotating action of the lid body, the upper surface of the container is required. It disposes of dust that has accumulated by opening it with a minimum opening time and opening amount, and the top of the container is closed except for that, so that the strange odor of gas etc. generated in the container is not leaked to the road by grating. effective.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a usage state of an odor leakage prevention device.

FIG. 2 is an exploded view of a main part.

FIG. 3 is an exploded view of a main part in which a mounting frame is attached to a frame body.

[Explanation of symbols]

 1 Masu 2, 3 Hume tube 4 Grating 7 Support shaft 8 Lid plate

[Procedure amendment]

[Submission date] June 15, 1994

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

Claims (1)

[Claims] 1. A support shaft is provided at an upper portion of an opposing inner side wall of a grid 1 having a lower end portion in which the fume pipes 2 and 3 are openly communicated with each other and a grating 4 is attached to an upper surface thereof, at a position deviated from a horizontal center portion of the opposing inner side wall. A device for preventing odor leakage, characterized in that a support plate (7, 7) is provided and a cover plate (8) is attached to the support shafts (7, 7) so that the cover plate (8) can move.