JPS6143994Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention uses a rod-shaped submersible pump, in which pump parts are connected in series, to be placed horizontally at the bottom of an aquarium in order to extract water from the tank to the outside. This invention relates to an installation device for a submersible pump installed in a submersible pump.

(Prior Art) Grundfus is a rod-shaped submersible pump in which a pump part and a motor part are connected in series, a water inlet is provided between the pump part and the motor part, and a discharge pipe is connected in an extended manner to the pump side end. It is known as a submersible pump (trade name of Grundfuos, Denmark) and Ehara Grandfuos stainless steel submersible motor pump (trade name of Ebara Corporation).
The submersible pump is housed in a housing cylinder whose inner diameter and axial length are both slightly larger than the submersible pump, and placed horizontally on the bottom plate of the water tank. It is also known from Japanese Utility Model Publication No. 36-2285 to fix the cylinder and maintain a constant gap between the inner periphery of the housing cylinder and the peripheral surface of the end on the pump side using this end wall.

(Problem to be solved by the invention) In the conventional example described above, the gap between the inner circumference of the other end of the housing cylinder and the circumferential surface of the end on the motor side is also maintained constant, so that the circumferential surface of the housing cylinder and the entire submersible pump is In order to keep the gap constant, a concentric fitting support device into which the motor side end of the submersible pump is inserted is provided on the inner periphery of the other end of the housing tube, separated from the inner periphery, and the motor side end is inserted into the fitting support device. It is inserted into the device and tightened from the circumference.

Submersible pumps sometimes need to be pulled out of the housing cylinder for maintenance inspections or troubleshooting. Remove the fixed end wall and drag the submersible pump out from one end of the housing cylinder.

However, after inspection and repair, it is very difficult to restore the submersible pump to its original state by pushing the submersible pump into the housing cylinder from one end with the motor side end at the top. This is because once the submersible pump has been pushed into the housing cylinder to a certain extent, hold the pump side end protruding from one end of the housing cylinder and apply force to lift the motor side end inside the cylinder. Moreover, the operator holding the pump end must successfully insert the motor end into the fitting support device, which cannot be seen from the outside.

Therefore, although it is easy to pull out the submersible pump from one end of the housing cylinder, it takes a lot of effort, time and effort to house it.

(Means for Solving the Problem) Therefore, the present invention has developed a submersible pump housed in the housing cylinder, on the inner periphery of the other end of the housing cylinder toward which the motor side end of the submersible pump faces.
A plurality of separator pieces are provided radially at intervals in the circumferential direction, and the inner surface of each separator piece is formed into an inclined surface whose height decreases toward one end of the housing cylinder.

(Function) The submersible pump can be easily dragged out from one end of the housing cylinder by removing the end wall as before.

After inspection, repair, etc. of the submersible pump are completed, in order to put it back into the housing cylinder, push the submersible pump into the housing cylinder from one end with the motor side end at the front until it can no longer be pushed in. As a result, at the end of the pushing process, the motor-side end rides on the inclined surface of the inner surface of the separator piece provided on the lower half of the inner circumference of the other end of the housing cylinder, and finally comes into sliding contact with the inclined surface of the inner surface of all the separator pieces. .

(Example) In the illustrated example, 1 is a rod-shaped submersible pump in which a pump part 1a and a motor part 1b are connected, and a suction port 2 is provided between the pump part 1a and the motor part 1b. A discharge pipe 3 protrudes concentrically.

Further, 4 is the above-mentioned housing cylinder made of a stainless steel pipe or a synthetic resin pipe such as PVC, and 5 is fixed to one end of the housing cylinder to maintain a constant gap between the inner circumference of the housing cylinder and the circumferential surface of the end on the pump side. 6 are four separator pieces protruding radially inward at equal intervals in the circumferential direction on the inner periphery of the other end of the housing tube, and the inner surface 6a of each separator piece 6 extends toward one end of the housing tube. It has a sloped surface that reduces the amount of protrusion.

To accommodate the submersible pump 1 in the housing cylinder 4, push the submersible pump 1 into the housing cylinder as much as possible from one end with the motor side end of the submersible pump at the beginning. As a result, at the end of the pushing, the motor side end rides on the inclined surface of the inner surface 6a of the separator piece on the lower half of the separator pieces 6 provided on the inner periphery of the other end of the housing tube, and finally all the separator pieces It comes into sliding contact with the inclined surface 6a of the inner surface of the housing cylinder and cannot be pushed in any further, and at the same time, the gap between the circumferential surface of the end on the motor side and the inner circumference of the other end of the housing cylinder is maintained constant.

After the submersible pump is pushed into the housing cylinder 4 in this way, the discharge pipe 3 protruding from the pump side end of the submersible pump 1 is connected to the threaded cylinder part 5a provided on the end wall 5 in the embodiment shown in FIGS. After penetrating, the end wall 5
is tightened and fixed with bolts and nuts to the flange 4a extending from the outer periphery of one end of the housing cylinder 4, and then the packing 9 is applied to the tip of the threaded cylinder part 5, and the cap nut 8 is screwed onto the outside of the threaded cylinder part 5a. Tighten the cap nut 8 to compress the packing 9. As a result, the packing 9 tightens the discharge pipe 3 from around it, and at the same time pushes the submersible pump 1 a little toward the separator pieces 6 so that the pump side end is supported by the end wall 5. The threaded cylindrical portion 5a of the end wall 5 connects the end wall to the flange 4 of the housing cylinder.
When fixed at position a, the distance between the inner periphery of one end of the housing cylinder and the periphery of the pump-side end of the submersible pump is kept constant. Therefore, the submersible pump 1 in the housing cylinder 4 has its motor side end supported by the inclined inner surface of each separator piece 6 mentioned above, and its pump side end supported by the end wall 5, so that the entire circumferential surface and The submersible pump 1 is fixed in the axial direction while maintaining a constant gap with the inner periphery of the housing cylinder.

Then, the power supply line 11 to the motor section 1b of the submersible pump is connected to a power source, and the discharge pipe 3 is connected to a water pumping pipe 13 to the outside of the tank in this embodiment. As a result, when power is supplied to the motor part 1b, the submersible pump 1 draws water in the tank into the housing cylinder through the gap between the other end of the housing cylinder and the end on the motor side, sucks the water from the suction port 2, and then pumps the water from the pump part 1a. The water is discharged into the discharge pipe 3 and drawn into the storage cylinder, and the water is pumped out of the tank through the pumping pipe 13 while cooling the motor section 1a.

The storage cylinder 4 is indirectly fixed by connecting the discharge pipe 3 to the pumping pipe 13, so it can be simply placed on the bottom plate of the aquarium, or if necessary, it can be placed on the lower end of the collar 4a as shown in the figure. The mounting seat and the mounting seat of the pedestal 7 that supports the other storage cylinders may be fixed to the bottom plate with bolts or nuts.

To take out the submersible pump 1 inside the storage cylinder for inspection, repair, etc., disconnect the discharge pipe 3 and pumping pipe 13, loosen the cap nut 8, remove it from the threaded cylinder part 5a, and also remove the end wall 5. All you have to do is remove it from the cylinder 4, hold the discharge pipe and pull it out of the cylinder.

After the inspection and repair are completed, to place the submersible pump 1 into the housing cylinder 4 again, as described above, push the end wall 5 into the housing cylinder as far as it will go, with the motor side end at the top. What is necessary is just to fix it to the collar 4a and connect the pumping pipe 13 to the discharge pipe 3.

In the above embodiment, the discharge pipe 3 is supported by the threaded cylinder part 5a on the end wall in order to maintain a constant gap between the inner circumference of the housing cylinder and the circumference of the pump side end of the submersible pump. Constant holding can also be performed as shown in FIG.

In other words, push the submersible pump 1 into the housing cylinder as much as possible with the motor side end at the top, and when the motor side end slides into contact with the inclined surface of the inner surface 6a of each separator piece 6..., the metal or synthetic resin pipe is inserted. 10a and
The tightening ring 10, in which the rubber ring 10b is connected with adhesive or the like, is pushed into the housing cylinder 4 from the rubber ring side, and the rubber ring is deformed to fit the pump side end of the submersible pump into the rubber ring, and the housing cylinder and Make it concentric. In this state, the end of the pipe 10a of the clamping ring is sized so as to project slightly outward from the end of the housing cylinder 4.

Next, the end wall 5' is fastened to the collar 4a with bolts and nuts, and at the same time, the tightening ring 10 is further pushed into the housing cylinder 4 by the inner surface of the end wall 5'. As a result, the tightening ring 10 further deforms the rubber ring 10b so that its entire length enters the housing cylinder, and the submersible pump 1 is pressed toward the separator piece 6 by the rubber ring 10b and fixed in the axial direction within the housing cylinder 4. be done.

Thereafter, as described above, the discharge pipe is connected to the pumping pipe 13 using a union or the like, and the power supply line passing through the end wall is connected to the power source. Note that if the inner circumference of the rubber ring 10b is tapered as shown in the figure, it can be easily fitted to the end on the pump side.

To take out the submersible pump 1 from inside the housing cylinder 4 for inspection, repair, etc., simply perform the above-mentioned operation in reverse and pull it out, and to put it back into the housing cylinder, perform the above-mentioned operation. Repeat.

(Effects of the invention) With this invention, although it has been easy to take out the submersible pump from the housing cylinder, it takes a lot of effort, time and effort to put the submersible pump back into the housing cylinder. By simply pushing in as much as possible, the gap between the inner periphery of the housing cylinder and the end of the submersible pump on the motor side can be maintained constant, and housing can be accomplished extremely easily.

[Brief explanation of the drawing]

Figure 1 is an elevational view of the lower half of an embodiment of this invention in cross section, Figure 2 is a side view of Figure 1 seen from the right,
Fig. 3 is a side view of Fig. 1 seen from the left, Fig. 4 is a perspective view of Fig. 1, and Fig. 5 is a cross-sectional view of a part of another embodiment. , 1a is the pump part, 1b is the motor part, 4 is the housing cylinder, 5 is the end wall,
6 indicates a separator piece, and 6a indicates an inclined inner surface of the separator piece.

Claims (1)

[Scope of Claim for Utility Model Registration] A submersible pump in which a pump part and a motor part are connected is housed in a housing cylinder whose inner diameter and axial length are both slightly larger than that of the submersible pump, and the submersible pump is placed horizontally on the bottom plate of an aquarium. An end wall is removably fixed to one end of the housing cylinder toward which the pump-side end of the submersible pump faces, and the end wall closes the gap between the inner periphery of the housing cylinder and the circumferential surface of the pump-side end of the submersible pump. In an installation device for a submersible pump that maintains a constant value, a plurality of separator pieces are provided on the inner periphery of the other end of the housing cylinder and protrude radially inward at intervals in the circumferential direction, and the inner surface of each separator piece is An installation device for a submersible pump, characterized in that a housing cylinder has an inclined surface whose protrusion decreases toward one end.