JPH0537095Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is a pump that is fixed to the tank wall of a water storage tank and pumps water from the inside of the water tank and parts connected to it with piping, such as pumps that pump water inside the tank. This invention relates to an on-off valve used to communicate or shut off a pump accommodating part containing a pump.

(Conventional technology) Conventionally, on-off valves that circulate and shut off water inside and outside the tank are
Naturally, it is attached to the piping outside the tank. Therefore, in the case of piping that connects the submersible pump accommodating part, which is a separate section inside the tank, and the inside of the tank, as shown in Figure 3 and elsewhere, a part of the piping should be taken out of the tank and an on-off valve installed there. It was installed and shut off when the pump was being repaired.

(Problem that the invention aims to solve) In order to circulate and cut off the water in the tank and the submersible pump housing section in a separate section of the tank, it is not necessary to take part of the piping outside the tank and attach an on-off valve. This will complicate the process, pose a risk of freezing in the winter, and obstruct traffic near the aquarium.

The inventor of the present invention set out to develop an on-off valve (flow and shutoff mechanism) that does not have the above drawbacks.

(Means for Solving the Problems) The on-off valve of the present invention has a handle shaft 6 passed through the inner circumference by threaded engagement in order to communicate and cut off the inside of the tank and the outside of the tank or a separate compartment inside the tank through piping. This is an on-off valve that fixes the casing 1 to the inner wall of the aquarium by passing the mounting cylinder part 4 through the water tank wall and tightening a nut 15 screwed on the outer periphery of the mounting cylinder part. The above-mentioned mounting cylinder part 4 is provided at one end,
A valve seat cylinder 7 having a valve seat 8 at the inner end and connected to the piping 12 is provided at the other end of the casing 1,
The handle shaft 6 has entered the inside of the casing 1
It is characterized in that a valve plate 10 that faces and can come into contact with the valve seat 8 is locked at the end of the valve seat 8.

(Function) The on-off valve of the present invention is installed inside the water tank, which is the water source, instead of intervening in the middle of the piping as in the past, and directly receives water into the casing from the opening on the circumference of the casing. . The valve plate that closes the valve seat at the connection between the pipe that sends out the received water and the casing is screwed by a handle outside the tank.

(Embodiment) In the embodiment shown in Figs. 1 and 2, 1 is a cylindrical casing having an open part 2 around half the circumference on the circumferential side, and a flat abutting surface 3 at one end of the cylindrical casing has screws inside and outside. A cylindrical mounting portion 4 protrudes concentrically and integrally, and a handle shaft 6 having a handle 5 at its tip is screwed into and passes through the inner periphery of the cylindrical mounting portion 4 .

7 is a valve seat cylinder, which has a valve seat 8 as an annular projection smaller in diameter than the casing;
The end portion having the valve seat 8 is screwed into the inner periphery of the other end portion of the casing 1 and connected thereto, and in this state, the valve seat 8 becomes concentric with the casing.

The end of the handle shaft 6 that protrudes into the casing 1 has a small-diameter threaded shaft 6', to which the valve plate 1 is attached.
0 and a gasket 9 is fitted and fixed with a nut 11. The diameters of the valve plate 10 and the packing 9 are slightly larger than the valve seat 8, so that the packing 9 can come into contact with the valve seat and close the valve seat. The valve plate 10 backs up the gasket 9 from the back.

A thread is carved on the inner or outer periphery of the other end of the valve seat tube 7 so that a pipe 12 to the pump section can be connected thereto. In order to fix this on-off valve to the tank wall 13 of the water tank, it is preferable to fit the gasket 14 into the mounting cylinder 4 and pass the mounting cylinder from inside the tank through the hole provided in the tank wall 13 through which the mounting cylinder passes. The contact surface 3 of the casing 1 is brought into contact with the inner surface of the tank wall via the gasket 14, and the nut 15 is screwed into the outer periphery of the mounting cylinder 4 from outside the water tank and tightened, and the contact surface 3 and the nut 15 are connected to the tank wall. Pinch and secure.

Next, in order to seal between the mounting cylinder part 4 and the handle shaft 6, fit the gasket 16 onto the handle shaft 6, apply it to the tip of the mounting cylinder 4, and screw the cap nut 17 into the top of the mounting cylinder and tighten it. Patsukin 1
Compress 6. Finally, the handle 5 is fixed to the tip of the handle shaft 6 by tightening it with a nut or the like.

In the state indicated by the solid line in FIG. 1, the seal 9 is separated from the valve seat 8, and therefore the inside of the water tank and the pump housing are in communication. When the handle shaft 6 is turned in one direction with the handle 5, the handle shaft 6 spirals, and as a result, the seal 9 is pressed against the valve seat 8 and closes the valve seat, as shown by the broken line in Fig. 1. .

This valve is normally open, and when the pump is operating, water that flows into the pump housing from inside the water tank through the valve is pumped to an elevated water tank, etc., and is closed during pump maintenance, inspection, etc., to allow the water in the pump housing to be drained only, or the pump to be removed from the housing without draining it.
To prevent all water in a water tank from being wasted by draining it every time a pump is maintained and inspected.

Figures 3, 4, 5, and 6 show three examples in which this on-off valve is incorporated into a water pumping device for the above purpose. Figure 3 is a submersible pump 20 in the form of a rod, in which the motor part is connected to the pump at the bottom of the side wall of the water tank, which was proposed by the present applicant in Utility Application 1986- (filed on April 25, 1986). A hole 22 having approximately the same diameter as the sleeve 21 that can accommodate the above is made, and the collar 21' at one end of the sleeve is fixed to the inner edge of this hole with bolts and nuts, and the other end of the sleeve is supported and attached to the bottom. Place the submersible pump 20 in the sleeve by placing it on the top and making the sleeve almost horizontal (a separator 20' is provided on the outer periphery of the motor part so as to maintain a distance from the inner periphery of the sleeve in the circumferential direction. ), a flange 24 that closes the hole 22 from the outside is provided on the discharge pipe 23 extending from the discharge part of the pump, and this flange is attached to the edge of the outside of the hole 22 in a watertight manner with bolts and nuts.
In addition, since the bolt also serves as a bolt for attaching the collar 21' of the sleeve 21, a hole 24' for housing the nut that fixes the collar 21' is made in the flange, and a washer 24'' larger than the housing hole is fitted into the bolt. Then, the other end of the sleeve 21 is connected to the valve seat tube 7 of the on-off valve through a pipe 12.

Therefore, when the on-off valve is open, water inside the water tank passes through the opening 2 of the casing 1 and the valve seat tube 7 into the sleeve 21, and can be pumped up by the pump 20 via the discharge pipe 23.

When taking out the pump 20, close the on-off valve, remove the drain plug (not shown) provided on the flange 24, drain the water in the sleeve 21, and remove the flange 24 from the outside of the tank wall. The pump 20 can be removed from the sleeve 21 as shown in the figure. To repair, perform the above steps in reverse.

4 and 5 also show the case where the same submersible pump 20 as in FIG.
61-1616, 10966.

In this case, an independent pump storage box 25 is installed adjacent to the bottom of the water tank. The storage box 25 has an outlet 25' on the side for taking out the pump laterally,
It is always kept watertight with a lid 26.

The pump 20 is mounted on a support stand 27, 2 that stands at the bottom of the storage box.
The discharge pipe 2 is placed horizontally on the storage box 7, and the discharge pipe 2 is attached to the collar at the end of the pumping pipe 28 that penetrates one end of the storage box in a watertight manner and enters the box.
Connect the 3 collars with bolts and nuts.

The on-off valve is fixed to the wall at the other end of the storage box, and the valve seat tube 7 is connected to a pipe 12 (suction pipe) that penetrates the storage box and the wall of the water storage tank in a watertight manner and opens into the water storage tank. 29).

Therefore, when the on-off valve is open, water in the water tank passes through the suction pipe 29, the valve seat cylinder 7, and the opening part 2 and flows into the storage box 25.
Since the water flows into the water, it can be similarly pumped up by the pump 20.

To take the pump out, close the on-off valve, open the drain plug (not shown) at the bottom of the storage box to drain the water inside the box, then remove the lid 26 and remove the caps of the pump and discharge pipes. Remove the connection and remove the pump from outlet 2.
Take it out from 5'. To repair, perform the above operations in reverse.

Figure 6 is a type of pump that was also proposed by the present applicant in Japanese Patent Application No. 127104/1986, and the motor part is placed outside the water tank. It hangs down from the center of the plate 30. A pump installation part 31 with a low upper wall is provided in a part of the water tank, and the sleeve 3 can accommodate the pump part on the upper wall.
A hole 31' having approximately the same diameter as that of sleeve 32 is opened.
Place the upper edge of the flange on the underside of the hole edge, and place the pump base plate 30.
are fixed to the upper surface of the edge of the hole with bolts and nuts, respectively, and the pump part is accommodated in the sleeve 32. In this case as well, the bolt that fixed the collar of the sleeve is connected to the base plate 30.
A hole 30' is made in the base plate 30 to accommodate a nut for fixing the collar of the sleeve to the edge of the hole 31'. Tighten.

The lower end of the sleeve is turned sideways and connected to the valve seat tube 7 of the on-off valve.

As a result, when the on-off valve is open, water enters the sleeve 32 through the opening 2 of the large diameter cylindrical portion and the valve seat tube 7, so that water can be pumped up by the pump in the water pumping pipe 33.

To remove the pump from the water tank, close the on-off valve and
The pump base plate 30 is then removed from the edge of the hole 31' and the pump section is pulled upwardly from the sleeve 32. In this case, there is no need to drain the water in the sleeve, so no water is wasted. To repair, perform the above operations in reverse.

FIG. 7 shows another embodiment of the present invention to show that the casing 1 does not have to be cylindrical. The end plates 1a and 1b are connected to each other by several connecting members 1', and the intervals between the connecting members form an open portion 2. That is, the casing 1 can be made into any suitable form in this way.

(Effect of the invention) The on-off valve of the present invention has an open part on the circumferential side of its casing, so by attaching this to the inner wall of the tank, the water in the tank can be received into the casing without piping, and the water outside the tank can be received. The handle allows the connection between the valve and the pipe to be opened and closed. This eliminates or reduces the risk of conventional outside tank piping and its freezing in the winter, and improves the appearance.

[Brief explanation of the drawing]

Fig. 1 is a side view of one half of an embodiment of the on-off valve of the present invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, and Fig. 3 is a first example of the operating state of the on-off valve. 4 is a perspective view of the second example, FIG. 5 is a cross-sectional view of a part of FIG. 4, FIG. 6 is a vertical sectional view of another example, and FIG. It is a perspective view of another embodiment of the valve, in which 1 is a casing, 2 is an opening part thereof, 3 is a contact surface, 4 is a mounting cylinder part, 5 is a handle,
6 is a handle shaft, 7 is a valve seat cylinder, 8 is a valve seat, 9 is a gasket, and 10 is a valve plate.

Claims (1)

[Scope of Claim for Utility Model Registration] In order to communicate and cut off the inside of the tank and the outside of the tank or a separate compartment inside the tank by piping, a mounting cylinder 4 with a handle shaft 6 passed through the inner circumference by threaded engagement is attached to the wall of the tank. This is an on-off valve that fixes the casing 1 to the inner wall of the aquarium by tightening a nut 15 screwed onto the outer periphery of the cylindrical mounting part, and the cylindrical mounting part 4 is attached to one end of the casing 1 which has an opening 2 on the circumference. A valve seat tube 7 having a valve seat 8 at the inner end and communicating with the piping 12 is provided at the other end of the casing 1, and the valve seat tube 7 is provided at the other end of the casing 1, and the valve An on-off valve characterized by locking a valve plate 10 which faces and can come into contact with a seat 8.