CN211174653U

CN211174653U - Submerged pump capable of overflowing

Info

Publication number: CN211174653U
Application number: CN201922355942.2U
Authority: CN
Inventors: 丛舒冰; 丛铭
Original assignee: Dalian Lidong Fluid Equipment Manufacturing Co ltd
Current assignee: Dalian Lidong Fluid Equipment Manufacturing Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-08-04
Anticipated expiration: 2029-12-25

Abstract

A submerged pump capable of overflowing belongs to the technical field of delivery pumps. But submerged pump of overflow, including the motor and the pump body, the pump body is provided with inlet and liquid outlet, liquid outlet department is connected with drain pipe and overflow pipe through three way connection, overflow pipe and drain pipe parallel arrangement, overflow pipe top are fixed with the end cover, the through-hole has been seted up on the end cover, overflow pipe bottom internal diameter is less than the top internal diameter, forms the overflow mouth in internal diameter shrink department, be provided with the solid slider that can reciprocate in the overflow pipe, solid slider is located overflow pipe upper portion, and the slider can block overflow mouth when falling, the slider top links together through powerful spring and end cover lower surface, the leakage fluid dram has been seted up on the pipe wall of overflow pipe, the leakage fluid dram is close to overflow mouth department setting. Submerged pump that can overflow, this submerged pump can avoid frequently opening in the short time to open the burden that causes equipment.

Description

Submerged pump capable of overflowing

Technical Field

The utility model belongs to the technical field of the delivery pump, especially, relate to a submerged pump that can overflow.

Background

The submerged pump is a vertical pump which immerses the flow passage parts such as an impeller, a pump body and the like in the conveyed liquid conveying object and is connected with a motor, and the submerged pump is manufactured according to different requirements of the length of the submerged pump extending into a container. At present, most of submerged pumps are started and stopped by manual control, and the setting of pump heads of the submerged pumps needs to be submerged below the liquid level due to the characteristics of the submerged pumps, so that the accurate position of the liquid level is difficult to accurately judge, and the pump body still operates when the liquid level is pumped below the submerged pumps. The submerged pump idles without liquid lubrication, which not only causes wear of the submerged pump, but also burdens the equipment with frequent start and stop.

Disclosure of Invention

To the problem that prior art exists, the utility model provides a submerged pump that can overflow.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a submerged pump that can overflow, includes the motor and the pump body, the pump body is provided with inlet and liquid outlet, liquid outlet department is connected with drain pipe and overflow pipe through three way connection, overflow pipe and drain pipe parallel arrangement, overflow pipe top are fixed with the end cover, the through-hole has been seted up on the end cover, overflow pipe bottom internal diameter is less than the top internal diameter, forms the overflow mouth in the internal diameter shrink department, be provided with the solid slider that can reciprocate in the overflow pipe, solid slider is located overflow pipe upper portion, and the slider can block off the overflow mouth when falling, the slider top links together through powerful spring and end cover lower surface, the leakage fluid dram has been seted up on the pipe wall of overflow pipe, the leakage dram is close to overflow mouth department setting.

And a sealing gasket is arranged between the sliding block and the overflow port.

The utility model has the advantages that:

the utility model provides an overflow submerged pump, the liquid outlet of which is connected with an overflow pipe, when the pump body is immersed into the liquid medium, the slide block stretches the strong spring under the combined action of the gravity and the weight of the liquid medium on the top of the slide block, and the slide block falls on the overflow port to prevent the liquid from passing through, and the submerged pump can work normally; when the liquid level position was less than the leakage fluid dram, the liquid medium at overflow pipe top was discharged through clapping the liquid mouth, and the slider upwards removed under the effect of powerful spring and outlet liquid pressure this moment, opened the overflow mouth, and at this moment, the liquid of liquid outlet passes through the leakage fluid dram and discharges outside the pump to this position of maintaining the liquid level no longer descends, has ensured that the pump body can not wear and tear because of the idle running, has also avoided frequent opening in the short time to stop the burden that causes equipment simultaneously.

Drawings

FIG. 1 is a schematic structural view of an overflow submerged pump of the present invention;

FIG. 2 is a partial cross-sectional view of the overflow tube of FIG. 1;

in the figure: 1-motor, 2-pump body, 3-three-way joint, 4-liquid outlet pipe, 5-overflow pipe, 6-end cover, 7-through hole, 8-overflow port, 9-slide block, 10-strong spring and 11-liquid outlet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-2, a submerged pump capable of overflowing belongs to the technical field of delivery pumps, and can avoid the burden on equipment caused by frequent start and stop in a short time.

The utility model discloses a submerged pump that can overflow, including the motor 1 and the pump body 2, the pump body 2 is provided with inlet and liquid outlet. Liquid outlet department is connected with drain pipe 4 and overflow pipe 5 through three way connection 3, and overflow pipe 5 and drain pipe 4 parallel arrangement, 5 tops of overflow pipe are fixed with end cover 6, have seted up through-hole 7 on the end cover 6, and liquid medium accessible through-hole 7 enters into in overflow pipe 5, and wherein, overflow pipe 5 is safe length from end cover 6 to the length between the leakage fluid dram 11, provides sufficient gravity for slider 9 shutoff overflow mouth 8. The bottom inner diameter of the overflow pipe 5 is smaller than the top inner diameter, an overflow port 8 is formed at the contraction position of the inner diameter, and the overflow port 8 can realize the overflow effect on liquid at the liquid outlet. Be provided with the solid slider 9 that can reciprocate in the overflow pipe 5, solid slider 9 is located overflow pipe 5 upper portion, and can shutoff overflow mouth 8 when slider 9 falls, and slider 9 is used for the shutoff and opens overflow mouth 8. The top of the sliding block 9 is connected with the lower surface of the end cover 6 through the strong spring 10, when liquid at the top of the overflow pipe 5 flows out through the liquid outlet 11, the downward acting force at the top of the sliding block 9 disappears, and the sliding block 9 moves upwards together under the restoring force of the strong spring 10, so that the overflow port 8 is opened. The liquid discharge port 11 is formed in the pipe wall of the overflow pipe 5, the liquid discharge port 11 is arranged close to the overflow port 8, the liquid discharge port 8 can be leaked out after the sliding block 9 moves upwards, and the liquid medium at the liquid discharge port of the pump is discharged out of the pump through the overflow port 8 and returns back to the liquid medium again for overflowing to stably maintain the position of the liquid level and not reduce.

Be provided with sealed the pad between slider 9 and the overflow mouth 8, sealed pad can realize the better shutoff effect to overflow mouth 8, prevents that slider 9 and overflow mouth 8 contact is not good and cause the emergence of the 8 weeping circumstances of overflow mouth.

The working principle of the present invention is described below with reference to the accompanying drawings.

When the pump body 2 is immersed in a liquid medium, the slider 9 stretches the strong spring 10 under the combined action of the gravity of the slider and the weight of the liquid medium on the top of the slider, and the slider 9 falls on the overflow port 8 to prevent the liquid from passing through, so that the submerged pump can normally work; when the liquid level position is lower than the liquid discharge port 11, the liquid medium at the top of the overflow pipe 5 is discharged through the liquid beating port 11, the slide block 9 moves upwards under the action of the strong spring 10 and the liquid pressure of the liquid outlet, the overflow port 8 is opened, at the moment, the liquid at the liquid outlet is discharged outside the pump through the liquid discharge port 11 and returns to the liquid medium again, the slide block is used for overflowing to maintain the liquid level position to be not descended any more, the pump body is ensured not to be abraded due to idling, and after the liquid medium liquid level rises, the slide block 9 is plugged again to close the overflow port 8, so that the burden on equipment caused by frequent start and stop in a short time is avoided.

Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a submerged pump that can overflow, includes the motor and the pump body, the pump body is provided with inlet and liquid outlet, its characterized in that, liquid outlet department is connected with drain pipe and overflow pipe through three way connection, overflow pipe and drain pipe parallel arrangement, overflow pipe top are fixed with the end cover, the through-hole has been seted up on the end cover, overflow pipe bottom internal diameter is less than the top internal diameter, forms the overflow mouth including the internal diameter shrink department, be provided with the solid slider that can reciprocate in the overflow pipe, solid slider is located overflow pipe upper portion, and the slider can shutoff overflow mouth when falling, the slider top links together through powerful spring and end cover lower surface, the leakage fluid dram has been seted up on the pipe wall of overflow pipe, the leakage fluid dram is close to overflow mouth department and.

2. Overflowable submerged pump according to claim 1, characterized in that: and a sealing gasket is arranged between the sliding block and the overflow port.