JPH04140203A - Dirty water recovery device in garbage wagon - Google Patents

Abstract

PURPOSE:To prevent dirty water from overflowing out of a dirty water tank when a garbage wagon is running as well as to prevent the inside of pipes from being clogged by forming a recovery pipe with linear pipes combined with one another, and providing difference in level for these pipes in such a way that the occurrence of reverse flow of dirty water is effectively prevented. CONSTITUTION:A rear opening section 2 is provided with a tail gate 3 the upper end of which is ratably supported by a garbage container 1. The upper section of the bottom plate 8 of the tail gate 3 is provided with a dirty water tank 9, and the tank 9 is connected to a dirty water well 7 with a recovery pipe 10. The recovery pipe 10 is disposed on the upper section of the tank 9, one end of the pipe is communicated with the inside of the tank 9, and the other end of the pipe is made up of a linear main pipe 11 projected out of the tail gate 13, and of two linear branch pipes 12 and 12 which are branched to the right and the left out of the other end of the main pipe 11 while being inclined upward from the branch position so as to be communicated with both of the right and left end sections of the dirty water well 7. This thereby prevents dirty water from reversely flowing out of the tank 9, and also prevents the inside of the pipes from being clogged.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a device for collecting wastewater from a waste storage box in a waste collection vehicle into a wastewater tank, and particularly relates to a structure that prevents clogging of the collection pipe. It is something.

[Conventional technology]

Conventionally, as a garbage collection vehicle, there is a
Some devices include a tailgate whose upper end is rotatably supported, and a garbage loading device provided inside the tailgate.

In this type of garbage collection vehicle, in order to prevent sewage from leaking between the garbage container and the tailgate, a seventh
As shown in FIG. 8 and FIG. A tank 9 is provided, and the waste water receiver 7 and the waste water tank 9 are connected by a collection pipe 20, so that the waste water leaking from the abutting portion is collected into the waste water tank 9.

In such a collection device, if the sewage tank S is full and the driver applies the brakes or takes a sharp curve while driving, the reaction may cause the sewage in the sewage tank S to backflow through the collection pipe. In order to prevent wastewater from flowing outside due to this backflow, in the conventional structure, the collection pipe 20 is
It is constructed by combining a U-shaped return pipe 21 that reverses the backflowing wastewater and returns it to the wastewater tank 9, and a connecting pipe 22 that connects the return pipe 21 and the wastewater receiver 7.

[Problem to be solved by the invention]

However, in the structure using the bent return pipe 21 and connecting pipe 22 as described above, dirt, dust, etc. contained in the waste water are likely to remain in the bent part of the container pipe, especially in the inside of the connecting pipe 22 which is bent tightly. The connection part with the return pipe 21 has a disadvantage in that dirt and the like flowing from the wastewater receiver 7 accumulates and becomes sticky, and the passageway is easily clogged.

For this reason, it is necessary to periodically clean the recovery pipe 20, but since the return pipe and connecting pipe have a greatly bent shape and are fixed integrally to the tailgate in a sealed state,
There was a problem in that it was not possible to insert a cleaning stick or the like into the interior to clean it, and cleaning work required considerable effort.

SUMMARY OF THE INVENTION An object of the present invention is to provide a wastewater recovery device that can solve the above problems, prevent backflow of wastewater from a wastewater tank, and prevent clogging inside the pipes.

[Means to solve the problem]

In order to solve the above-mentioned problems, the present invention includes a straight main pipe that is arranged above the waste water tank, has one end communicating with the waste water tank, and has the other end protruding outside the tailgate;
It is composed of a linear branch pipe that branches from the other end of the main pipe and slopes upward from the branch position to communicate with the waste water receiver.

In the above structure, a structure can be adopted in which the main pipe is arranged in the center of the tailgate, and the branch pipe is formed from two pipes connecting the main pipe and both ends of the sewage receiver.

Furthermore, a camp that opens and closes the inside of the pipe to the outside may be detachably attached to the other end of the main pipe.

[Function] In the above structure, when sewage flows backward from the sewage tank, the dirt in the sewage is held back by the internal resistance between the main pipe and the branch pipe and the height difference between the top and bottom of the branch pipe, preventing it from flowing into the sewage receiver. Ru.

Furthermore, since the collection pipe is made up of a straight main pipe and a branch pipe, it is difficult for dirt in the sewage to accumulate in the pipe, thereby preventing clogging.

On the other hand, when there are two branch pipes, the flow energy of the backward flowing wastewater is dispersed in two directions and is lost, so that backflow can be more effectively prevented.

Further, if a cap is attached to the main pipe to open and close the inside of the main pipe, removing the cap opens the inside of the straight pipe, so that clogging can be easily removed.

[Example] The present invention will be described in detail below with reference to the attached FIGS. 1 to 6.

Although not shown, the garbage storage box 1 is installed on the body of a traveling vehicle so that it can be dumped, and the garbage storage box 1 has a rear opening 2 with a
A tailgate 3 whose upper end is rotatably supported by the garbage storage box 1 is provided.

The tailgate 3 is rotatable by a cylinder device or the like, and a garbage loading device 5 for pushing garbage thrown in from the garbage inlet 4 into the garbage storage box 1 is provided inside the tailgate.

A gasket 6 is attached to the contact portion between the lower end of the rear end opening 2 of the garbage storage box 1 and the front wall of the tailgate 3, and a sewage receiver 7 is provided below the gasket 6. This sewage receiver 7 is attached to the front part of the bottom plate 8 of the tailgate 3, and is formed in the shape of a gutter over the entire width of the garbage storage box 1 in the left and right direction.

Further, a sewage tank 9 is provided at the top of the bottom plate 8 of the tailgate 3, and this sewage tank 9 and the sewage receiver 7 are connected by a recovery pipe 10. Note that the sewage tank can also be provided at the lower part of the bottom plate 8 of the tailgate.

As shown in FIGS. 2 to 4, the recovery pipe 10 is arranged in the upper part of the sewage tank S, and has one end communicating with the inside of the sewage tank 9 and the other end projecting outside the tailgate 3 in a straight line. A main pipe 11 having a shape, and two linear branch pipes 12 that branch left and right from the other end of the main pipe 11, slope upward from the branch position, and communicate with both the left and right ends of the wastewater receiver 7.
．． It consists of 12.

In addition, as shown in FIGS. 4 and 5, screw-in caps 13 are attached to and removed from the ends of the main pipe 11 that protrude to the outside, and the ends of each branch pipe 12 and 12 that are opposite to the branch positions. It is freely attached, and by attaching and detaching the camp 13, the inside of the container tube 11, 12 can be opened and closed to the outside.

In the garbage collection vehicle of the embodiment constructed as described above, the wastewater received in the wastewater receiver 7 is collected into the wastewater tank 9 through the branch pipes 12, 12 and the main pipe 11.

On the other hand, when sewage flows backward from the sewage tank 9, the sewage is dispersed in two directions by the branch pipes 12 and 12, and due to the internal resistance inside the main pipe 11 and the branch pipe 12 and the height difference between the branch pipes 12 and 12. The flow energy is dissipated and the backflow movement is stopped.

In this way, by dispersing the flow of wastewater with the two branch pipes 12, 12, and increasing the length of the branch pipes and main pipe (by increasing the resistance inside the pipes, it is possible to increase the resistance to stop backflow. It is possible to prevent sewage from flowing into the sewage receptacle 7.

Further, in the above structure, the recovery pipe 10 is a linear main pipe 11
and branch pipes 12 and 12, dirt and dust contained in the waste water are less likely to remain inside the pipes, and clogging is less likely to occur.

In addition, if the inside of the pipe or the branch position is clogged, the main pipe 11 or the branch pipe 12.1 can be removed by removing the cap 13.
Since the inside of the container 2 is open, clogging and dirt can be easily removed by inserting a cleaning stick or the like into the container.

[Effects of the Invention] As described above, in this invention, the collection pipe is constructed by combining straight pipes, and the pipes are provided with height differences to effectively prevent backflow of wastewater. This has the effect of preventing sewage from leaking out of the sewage tank, as well as preventing clogging caused by dirt and the like in the sewage.

[Brief explanation of drawings]

Fig. 1 is a front view showing an embodiment of the present invention, Fig. 2 is a cross-sectional view showing the main parts thereof, Fig. 3 is a side view showing the mounting part of the recovery device same as above, and Fig. 4 is the same mounting part. 5 and 6 are respectively sectional views showing the attachment portion of the cap, FIG. 7 is a front view showing a conventional example, and FIG. 8 is a side view thereof. 1... Garbage storage box, 2... Rear end opening, 3... Tailgate, 5...
Garbage loading device, 7... Sewage receiver, 9.
... Sewage tank, 10 ... Recovery pipe, 1 ... Main pipe, 12 ... Branch pipe, 13 ... Cap.

Claims (3)

[Claims] (1) A tailgate whose upper end is rotatably supported is provided at the rear end opening of the garbage storage box, and a sewage receptacle is provided below the contact area between the lower end of the rear end opening and the tailgate, In a sewage collection device for a garbage collection vehicle in which a sewage tank is provided at the bottom of the tailgate, and this sewage receiver and the sewage tank are connected by a collection pipe, the collection pipe is placed above the sewage tank and one end is connected to the sewage tank. Consisting of a straight main pipe that communicates with the other end and projects outside the tailgate, and a straight branch pipe that branches from the other end of the main pipe and slopes upward from the branch position to communicate with the sewage receptacle. A sewage collection device for a garbage collection vehicle, which is characterized by: (2) Place the main pipe in the center of the tailgate, and place the branch pipe in the center of the tailgate.
The sewage collection device for a garbage collection vehicle according to claim 1, characterized in that it is formed from two pipes that connect the main pipe and both ends of the sewage receiver. (3) Sewage collection in the garbage collection vehicle according to claim (1) or (2), characterized in that a cap is detachably attached to the other end of the main pipe to open and close the inside of the pipe to the outside. Device.