JPH0214700Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a valve that opens and closes a flow path in a sewage hose used to convey excrement, urine, etc.

[Conventional technology]

Generally, when pumping up excrement from a manure tank or sludge from a septic tank, a pumping device is used, which is a tank equipped with a suction pump and a sewage pipe connected to it, which sucks the sewage from the end of a sewage hose and pumps it into the tank. The method used is to store the waste and transport it to a processing plant, etc.

In the case of this conventional pumping device using a tank and a sewage hose, a valve is only provided at the joint between the tank and the sewage hose, and no valve is provided in the middle of the sewage hose.

[Problem that the invention attempts to solve]

This is because with conventional Kotoku and butterfly valves, (1) some narrow parts are created in the flow path, (2) obstacles are formed in the flow path that impede the flow, and (3) parts of the valve are created. (4) Protrusions form on the outside of the valve, etc. That is, when such a valve is attached to a sewage hose, the solid matter contained in the sewage tends to clog the sewage hose, and it becomes difficult to draw the sewage hose through a narrow space to the desired location.

By the way, when drawing sewage using the above device, the end of the sewage hose is immersed in the sewage tank, and the suction pump is driven to reduce the pressure inside the tank to a predetermined atmospheric pressure. At this point, open the valve between the tank and the sewage hose,
A method is used to suck the wastewater from inside the tank.

At this time, it is desirable in terms of efficiency and pressure reduction time to close the valve and drive the suction pump until the pressure inside the tank is reduced to a predetermined pressure. However, in order to open and close the valve, the operator must go back and forth several times between the sewage tank at the distal end of the sewage hose and the valve at the proximal end. For this reason, in practice, a method is used to reduce the pressure while the valve is open.

Furthermore, after the pumping is finished, the valve is closed and the sewage hose is rolled up and moved, but at this time the sewage from the valve to the tip of the sewage hose may overflow.

This idea was made to solve the above-mentioned problems with conventional sewage hoses, and there are no narrow parts or obstacles formed in the flow path, and no large bulges or protrusions are formed outside the sewage hose. To provide an easy-to-use sewage hose by providing a valve so that the valve can be provided at any position of the sewage hose.

[Means to solve the problem]

The configuration of this invention will be explained below with reference to the reference numbers in the drawings.The valve chamber 5 formed in the case 2
A valve seat 8 is provided in the valve chamber 5, and a valve body 9 that abuts against the valve seat 8 and closes the flow path is rotatably mounted in the valve chamber 5. A short link 11 is connected to the valve body 9, and the tip of an arc-shaped link 12 inserted into the valve chamber 5 from the outside of the case 2 is connected to the link 11. A lever 19 is rotatably attached to the outside of the case 2, and the arc-shaped link 1 is attached to the middle part of the lever 19.
Connect 2. A spring 18 is attached to this lever 19 to hold it in a collapsed state along the case 2.

[Effect]

As shown in FIGS. 1 and 2, the lever 1
When the valve 9 is folded down, the link 12 is pushed into the case 2, and the valve body 9 is pushed into the valve seat 8.
, blocking the flow path. At this time, lever 1
The lever 1 is moved by the elasticity of the spring 18 acting on the lever 9.
9 is maintained in the collapsed state, and the valve is maintained in the closed state.

From this state, when the lever 19 is raised against the elasticity of the spring 18, the link 12
is pulled out from the case 2, and the valve body 9 is gradually separated from the valve seat 8. Then, when the lever 19 is reversed approximately 180 degrees and brought down to the state shown in FIGS. 3 and 4, the link 12 is pulled out completely from the case 2. As a result, the valve body 9 is approximately
Rotated 90° to fully open the flow path. At this time, the lever 19 is held in the depressed state by the elasticity of the spring 18 that also acts on the lever 19, and the valve is maintained in the open state.

In this way, since the valve body 9 rotates approximately 90 degrees from the closed state of the valve to open the flow path, the opening area of the valve seat 8 can be taken to fill the entire cross-sectional area of the flow path.
At this time, since it is sufficient to attach the valve body 9 to the inner wall of the case 2, there is no need to make the case 2 particularly large compared to the cross-sectional shape of the flow path.

In addition, even when the valve is open or closed, the lever 19 is completely pushed down, so it does not protrude outward from the case 2 to a large extent. The link 12 pulled out to the outside of the case 2 when closed is
It is bent at the connection point with the link 11 and does not protrude significantly outside the case 2.

〔Example〕

Next, this configuration will be explained in more detail based on the illustrated embodiment.

The case 2 consists of a main body 3 and a lid 4 fixed to the main body 3 with screws, etc., and a valve chamber 5 formed therein.
The cross section of the flow path is approximately U-shaped, as shown in FIG. Correspondingly, the shapes of the valve body 9 and the lid body 4 (see FIG. 4) are also approximately U-shaped. A joint 6 is provided at both ends of the case 2, into which the end of the hose 1 is fitted, and a band 7,
It is fixed at 7...

A packing 10 is fitted into a valve seat 8 formed between the valve chamber 5 and one joint 6. 1st
As shown in the drawings and FIG. 2, the plate-shaped valve body 9 hits the valve seat 8 via the packing 10 and blocks the flow path. On the other hand, when the valve body 9 is rotated 90 degrees from this state until it is attached to the lid body 4 as shown in FIG. 3, the flow path is opened. A bracket 13 is provided on the left side of the valve body 9 in FIG.
A short link 11 is rotatably connected to this.

A through hole is formed in the lid body 4, and a bush 14 made of an elastic material such as rubber is fitted into the through hole. An arcuate link 12 is inserted into the bush 14, and its base end is rotatably connected to the link 11.

Further, a bearing 15 is attached to the front side of the lid 4, and a base end of a lever 19 is rotatably connected to the bearing 15. The illustrated bearing 15 is provided with an arc-shaped groove 16, and a shaft pin 17 provided at the base end of the lever 19 is supported so as to be slidable along this groove 16.

The tip of the link 12 pulled out from the through hole is rotatably connected to the intermediate portion of the lever 19. Further, a spring 18 is attached to this link 12, and this elastic force is applied between the part of the lever 19 closer to the lid body 4 than the fulcrum and the part closer to the tip of the lever 19 than the fulcrum, so that the tip side of the lever 19 is It acts in a direction to bring it closer to the lid body 4.

[Effect of idea]

As described above, according to this invention, a valve can be formed with a simple structure without reducing the cross-sectional area of the flow path, forming obstacles in the flow path, bulging the external shape, or forming external protrusions. can be configured. Therefore, it is possible to make a valve that can be attached to the part near the tip of the hose 1 for pumping up sewage,
This makes it possible to prevent the inflow of air from the sewage hose 1 during tank pressure reduction and the leakage of sewage after pumping, which conventionally occur.

[Brief explanation of the drawing]

All drawings show examples of this invention.
Fig. 1 is a longitudinal sectional side view of the valve in the closed state with the background omitted; Fig. 2 is a longitudinal sectional view taken along line A-A in Fig. 1;
FIG. 3 is a longitudinal side view of the valve in an open state with the background omitted, and FIG. 4 is a plan view of the valve. 1...Hose, 2...Case, 5...Valve chamber, 8
... Valve seat, 9 ... Valve body, 11 ... Short link, 1
2... Arc-shaped link, 18... Spring, 19...
lever.

Claims (1)

[Scope of utility model registration request] In a valve that opens and closes a wastewater flow path formed in a hose 1, a valve seat 8 is provided in a valve chamber 5 formed in a case 2, and the flow path is closed by contacting the valve seat 8. A valve body 9 is rotatably installed in the valve chamber 5, a short link 11 is connected to the valve body 9, and the tip of an arc-shaped link 12 inserted into the valve chamber 5 from the outside of the case 2 is connected to the link. 11, a lever 19 is rotatably attached to the outside of the case 2, and the arc-shaped link 1 is connected to the middle part of the lever 19.
2, and the spring 18 that holds the lever 19 in a fallen state along the case 2 is attached to the lever 1.
Sewage hose 1 characterized by being attached to 9.
Valve for.