JPS626320Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a submersible pump equipped with a large filter.

``Prior Art'' Conventional submersible pumps are directly connected to an electric motor and are integrally formed into a long and narrow structure because they are inserted into small-diameter wells such as borings.

It is necessary to provide a filter to prevent foreign matter such as sand from being sucked into the suction port, but if the suction port is installed on the side so that it does not interfere with the insertion of the well, it is necessary to provide a filter with many nets or small holes. The plate-shaped filter had to be firmly attached to the suction port using screws or the like.

However, such suction ports are usually small due to the shape of the submersible pump, and although they are effective in removing sand, etc., they quickly become clogged, resulting in the filter becoming an obstacle to pumping water. .

For this reason, attempts have been made to increase the capacity of the filter by enlarging the suction port, creating a large space around the suction port, or by pulling the filter up along the pumping pipe to make cleaning easier. was.

However, in the former case, a large number of screws must be used to fix the submersible pump to the main body of the submersible pump, making disassembly and reassembly troublesome.

In the latter case, since the filter can be pulled up for cleaning, there is no need to make the filter unnecessarily large, and while this is convenient, the close contact between the filter and the submersible pump body poses a problem, and foreign objects can be removed from the gap. This resulted in inhalation and impairing the effectiveness of the filter.

``Problems that the invention attempts to solve'' The present invention was made in view of the above circumstances, and aims to solve these problems by providing a large filter that can be easily attached and detached, as well as having sufficient mechanical strength. The present invention aims to provide a submersible pump that can be obtained.

``Means for Solving the Problems'' The present invention has a suction port of a pump opened at one end facing upward, a circular support portion surrounding this suction port, and a circular support portion provided at one end of the pump. A filter is fitted at one end thereof, and a long support column is provided on which the other end of the filter is supported and forms a discharge port of the pump, and a pumping pipe can be connected to the upper end of the support column. By doing so, the problem was resolved.

``Function'' By providing the filter in a cylindrical shape at the upper end of the pump body, it can be enlarged without limit along the pumping pipe, and its capacity can be increased as much as necessary. The discharge port also becomes a strong support pillar to prevent damage, and it can be easily disassembled and reassembled because it can be easily attached to the upper end of the pump and the support pillar without the need for multiple screws. You can do all the operations that you know how to do.

Embodiment Hereinafter, the present invention will be described based on an embodiment shown in the drawings. The figure is an exploded view of a submersible pump showing an embodiment of the submersible pump according to the present invention.

The submersible pump has a main body 1 that is elongated and directly connected to an electric motor.

A suction port 2 is formed at one upper end.

A circular support portion 3 is provided to surround the suction port 2, and a support column 4 is provided around the circular support portion 3.

The support column 4 also serves as the discharge port of the pump, and its upper end is connected to a pumping pipe from the ground (not shown).

Furthermore, a hook 6 for hanging the closing plate 5 and the main body 1 is provided on the upper part of the support column 4.

The cylindrical filter 7 is made of relatively hard plastic and is formed by rolling a highly rigid net, and a rubber band 8 is attached to the outer circumference to prevent it from spreading due to its rigidity. It is fitted in.

The cylindrical filter 7 is provided with rubber rings 9 and 10 at both upper and lower ends, and a rubber ring 1 at the lower end.
0 is configured to fit into the support portion 3 and prevent foreign matter from entering through the gap.

Further, the rubber ring 9 at the upper end is configured to be fitted inside the cup-shaped lid 11.

Further, the filter 7 is inserted into the support column 4, and when the rubber ring 10 at the lower end is fitted onto the support column 4, the inner circumferential surface at the upper end comes into contact with the closing plate 5.

The lid 11 has a through hole 12 formed in the center so that it can move up and down with respect to the support column 5, and this through hole 12 is formed so that the hook 6 provided at the top of the support column 4 passes through it. ing.

The lid 11 is provided with a screw hole 13 that can be attached to the closing plate 5 with a screw.

In such a configuration, when assembling a submersible pump, the main body 1 is assembled with the electric motor and the pump, and then the filter 7 is inserted into the support column 4, and the rubber ring 10 at the lower end is attached to the support part 3 formed on the upper part of the main body 1. mate.

Then, after confirming that the closing plate 5 is in contact with the inner periphery of the rubber ring 9 at the upper end, the lid 11 is attached.

Furthermore, the assembly is completed by fixing the lid 11 to the closing plate 5 using screws.

When such a submersible pump is operated underwater, water flows into the suction port 2 from the outer peripheral surface of the filter 7, and if foreign substances such as sand are mixed in the water, they accumulate on the surface of the filter 7. I will do it.

Then, when the operation is stopped, the water flow disappears, so some of the accumulated foreign substances fall from the surface of the filter 7, but some of them clog the filter 7 and accumulate.

Therefore, if the filter 7 is used for a long time or in water with a lot of foreign substances, the filter 7 will become clogged.
Eventually, clogging will create resistance to water flow and adversely affect pumping characteristics.

However, if such clogging is a concern, by increasing the length of the filter 7, the surface area of the filter 7 can be increased, and its life can be extended in proportion.

However, if the filter is still clogged, it can be easily cleaned or replaced by disassembling it in the opposite way to the assembly process, that is, removing the lid 11 and pulling out the filter 7 from the support column 4.

In a submersible pump, if a lift pipe is attached to the upper end of the support column 4, the lid 11 and filter 7 cannot be removed unless this lift pipe is removed, but the support column 4 also serves as a discharge pipe. Therefore, the water pump is connected to the upper end of the support column 4, which does not affect the installation of the filter 7, and since there are no special components inside the filter 7, the structure is simple and cleaning is easy. The lifting pipe can also be attached and detached independently of the filter 7.

In addition, the filter 7 has a rubber ring 9 at the upper end like this.
The upper end of the filter 7 is not limited to the structure in which the filter is closed with a closing plate 5 and pressed with a lid 11, and the upper end of the filter 7 integrally constitutes a rubber ring 9 and a closing plate 5, and the attachment to the main body 1 is , the support part 3 and the rubber ring 1 at the lower end
It can also be configured by screwing or press-fitting with 0.

The support portion 3 may be of any type as long as it reinforces the circular shape of the cylindrical filter 7 so that it will not be damaged by water flow or other external forces, and the support portion 3 may be fitted with radial irregularities. Structure is preferred.

Furthermore, by forming the support part 3 in a circular shape on the upper part of the main body 1, the filter 7 can be easily attached and detached in the axial direction of the submersible pump, that is, in the longitudinal direction, and the surface area of the filter 7 can be freely adjusted by increasing the length. It is very convenient because it can be expanded and in this case also there is no problem in inserting it into a well of small diameter.

"Effects of the invention" As described above, according to the invention, a suction port is formed at one end of the main body of the submersible pump, which is formed into an elongated shape, and a circular support portion is formed to surround this suction port. Equipped with a cylindrical filter, this filter also serves as a discharge pipe, and the stator uses a support column to which a pumping pipe is connected to the top, so the filter can be supported robustly even if it is long, and the pumping pipe can be easily removed when it is attached or removed. It is possible to obtain a submersible pump that can be easily cleaned by removing the pipe or without removing the pumping pipe, and there is no restriction on increasing the size of the filter in connection with the attachment and detachment of these pipes.

According to the present invention, the conventional problems are solved, the life of the filter can be easily extended, and in the event of clogging, it is easy to remove the filter from the well, disassemble it, clean it, or replace it. It is composed of a minimum number of screws, etc., and can be disassembled and assembled extremely easily, and its practical value is extremely large.

[Brief explanation of the drawing]

The figure is an exploded view of a submersible pump showing an embodiment of the submersible pump according to the present invention. 2...Suction port, 3...Support part, 4...Support column,
7... Filter, 9, 10... Rubber ring.

Claims (1)

[Scope of utility model registration request] The electric motor and the pump are directly connected and integrally formed into a long and slender body, and the suction port of the pump is opened at one end facing upward, and a circular support part is provided to surround this suction port. A long support column is provided on which the other end of the filter is supported and forms a discharge port of the pump, and a pumping pipe can be connected to the upper end of the support column. A submersible pump characterized by the following configuration.