CN111608961A

CN111608961A - Self-cleaning water pump

Info

Publication number: CN111608961A
Application number: CN202010467005.0A
Authority: CN
Inventors: 许雪杰; 李进峯; 赵国红
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2020-09-01

Abstract

The invention discloses a self-cleaning water pump, which comprises a pump body with an inlet and an outlet, wherein the inlet is communicated with the outlet through a main runner, an impeller is arranged in the main runner, the self-cleaning water pump also comprises a filtering mechanism movably arranged at the inlet, and the filtering mechanism comprises: first casing, second casing, pivot, filter, elastic component. The invention has the advantages that: by arranging the filtering mechanism, the water flow entering the pump body can be filtered; the filtering device can automatically switch the filtering area by utilizing water flow, thereby ensuring the working efficiency of the water pump and reducing the maintenance cost of the water pump; through setting up tortuous slide and lug for the switching of filtering area is gone on according to the filter to the resistance of rivers, makes filtering mechanism can switch according to the actual jam condition of filter, has reduced unnecessary extravagant.

Description

Self-cleaning water pump

Technical Field

The invention relates to the field of water pumps, in particular to a self-cleaning water pump.

Background

The water pump is a machine for conveying liquid or pressurizing liquid, and transmits mechanical energy of a prime motor or other external energy to the liquid to increase the energy of the liquid, the common water pump generally has complicated working conditions, and a working place possibly contains more gravels and impurities, and the existing water pump is provided with a filtering device at a water inlet, so that the water pump continuously works for a long time and the water inlet is blocked; to avoid the water inlet clogging, cleaning is required regularly. During cleaning, relevant parts need to be disassembled, and the parts are reinstalled after cleaning. Not only is troublesome, but also delays the production progress and causes certain inconvenience for production.

Disclosure of Invention

Therefore, the self-cleaning water pump is needed to solve the problems, and the self-cleaning water pump can automatically clean the filter element, so that the working efficiency of the water pump is improved, and the maintenance cost of the water pump is reduced.

The invention discloses a self-cleaning water pump, which comprises a pump body with an inlet and an outlet, wherein the inlet is communicated with the outlet through a main runner, an impeller is arranged in the main runner, the self-cleaning water pump also comprises a filtering mechanism movably arranged at the inlet, and the filtering mechanism comprises: the pump body is fixedly connected with the first shell, a filter cavity is formed between the first shell and the second shell, a first guide pipe is arranged on the first shell and is in sliding connection with the pump body, a rotating shaft is fixedly connected to the pump body, the rotating shaft is parallel to the main flow channel and penetrates through the middle parts of the first shell and the second shell, and a convex block is arranged on the side wall of the rotating shaft; the filter plate is arranged in the filter cavity and is rotationally connected to the rotating shaft, a zigzag slideway is arranged on the filter plate, the convex block is positioned in the zigzag slideway, and when the filter plate moves backwards along the rotating shaft, the convex block moves in the zigzag slideway to enable the filter plate to rotate; when the thrust of the water flow to the filtering mechanism is smaller than the thrust of the elastic piece to the filtering mechanism, the filtering mechanism moves towards the direction close to the inlet, so that the filtering area of the filtering plate is switched.

In one embodiment, three filtering areas are arranged on the filtering plate, the size of each filtering area is the same as the pipe diameter of the first guide pipe, one filtering area corresponds to the first guide pipe, and the filtering plate is switched to the filtering area corresponding to the first guide pipe once the filtering mechanism completes reciprocating motion.

In one embodiment, the self-cleaning water pump further comprises a fan, a second guide pipe is arranged on the first shell, the fan is arranged on the second shell and corresponds to the second guide pipe, and the fan can reversely blow the filtering area.

In one embodiment, a distance sensor and a time-delay power-off switch are arranged on the pump body, the time-delay power-off switch controls the starting and stopping of the fan, when the filtering mechanism is far away from the distance sensor, the distance sensor sends a signal to close the time-delay power-off switch, the fan starts to blow the filtering plate, and after a preset time, the time-delay power-off switch is switched off.

In one embodiment, the zigzag slideway is formed by alternately arranging a spiral section and a reset section.

In one embodiment, a third guide tube is disposed on the second housing, and the third guide tube is disposed coaxially with the first guide tube.

In one embodiment, a sealing member is arranged between the first guide pipe and the pump body and between the third guide pipe and the pump body.

In one embodiment, the primary flow passage comprises: a horizontal segment extending in a horizontal direction, one end of the horizontal segment being in communication with the inlet; and the vertical section extends along the vertical direction, one end of the vertical section is communicated with the horizontal section, the other end of the vertical section is communicated with the outlet, and the outlet is positioned at the top of the pump body.

The technical scheme has the advantages that:

1. by arranging the filtering mechanism, the water flow entering the pump body can be filtered, so that the water flow passing through the water pump is cleaner;

2. the filtering device can automatically switch the filtering area by utilizing water flow, thereby ensuring the working efficiency of the water pump and reducing the maintenance cost of the water pump;

3. the fan, the distance sensor and the time delay power-off switch are arranged, so that the replaced filtering area can be cleaned and dredged, the filtering mechanism can be continuously used next time, and the filtering mechanism can work for a long time without replacement;

4. through setting up tortuous slide and lug for the switching of filtering area is gone on according to the filter to the resistance of rivers, makes filtering mechanism can switch according to the actual jam condition of filter, has reduced unnecessary extravagant.

Drawings

FIG. 1 is a perspective view of a self-cleaning water pump according to the present invention;

FIG. 2 is a top view of a self-cleaning water pump according to the present invention;

FIG. 3 is an exploded view of a portion of a self-cleaning water pump according to the present invention;

FIG. 4 is a front view of a self-cleaning water pump according to the present invention;

FIG. 5 is a cross-sectional view taken at A-A of FIG. 4 in accordance with the present invention;

FIG. 6 is a cross-sectional view of the present invention provided in another operational state at A-A in FIG. 4;

FIG. 7 is a cross-sectional view taken at B-B of FIG. 4 in accordance with the present invention;

FIG. 8 is a cross-sectional view taken at C-C of FIG. 4 in accordance with the present invention;

FIG. 9 is a cross-sectional view of the present invention provided in another operational state at C-C of FIG. 4;

FIG. 10 is a cross-sectional view taken at D-D of FIG. 4 in accordance with the present invention;

FIG. 11 is a perspective view of a filter plate of a self-cleaning water pump according to the present invention;

FIG. 12 is a perspective view of another perspective view of the filter plate of the self-cleaning water pump according to the present invention;

FIG. 13 is an enlarged partial view at E of FIG. 12 provided in accordance with the present invention;

fig. 14 to 16 are flat views of the zigzag sliding way provided by the present invention, in which different working positions of the convex block in the zigzag sliding way are respectively shown.

In the figure, the self-cleaning water pump 100, the pump body 10, the inlet 11, the outlet 12, the horizontal section 131, the vertical section 132, the impeller 20, the filter mechanism 30, the first housing 31, the first guide pipe 311, the third guide pipe 321, the second housing 32, the second guide pipe 312, the filter chamber 33, the rotating shaft 34, the projection 341, the filter plate 35, the zigzag slideway 351, the spiral section 3511, the reset section 3512, the filter area 352, the elastic piece 36, the sealing piece 37, the distance sensor 40 and the fan 50.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 and 2, the self-cleaning water pump 100 disclosed by the present invention comprises a pump body 10 having an inlet 11 and an outlet 12, wherein the inlet 11 is communicated with the outlet 12 through a main flow passage, an impeller 20 is disposed in the main flow passage, a filter mechanism 30 movably disposed at the inlet 11 is further included in the self-cleaning water pump 100, and as shown in fig. 3, the filter mechanism 30 comprises: the device comprises a first shell 31, a second shell 32, a rotating shaft 34, a filter plate 35 and an elastic piece 36. The first housing 31 is fixedly connected with the second housing 32 to form a filter chamber 33, a first guide pipe 311 is arranged on the first housing 31, the first guide pipe 311 is slidably connected with the pump body 10, the rotating shaft 34 is fixedly connected with the pump body 10, the rotating shaft 34 is arranged in parallel with the main flow passage and penetrates through the middle parts of the first housing 31 and the second housing 32, and a convex block 341 is arranged on the side wall of the rotating shaft 34; the filter plate 35 is disposed in the filter chamber 33 and rotatably connected to the rotating shaft 34, a zigzag slideway 351 is disposed on the filter plate 35, the projection 341 is located in the zigzag slideway 351, and when the filter plate 35 moves backward along the rotating shaft 34, the projection 341 moves in the zigzag slideway 351 to rotate the filter plate 35; one end of the elastic member 36 abuts against the second housing 32, the other end abuts against the pump body 10, when the thrust of the water flow to the filter mechanism 30 is greater than the thrust of the elastic member 36 to the filter mechanism 30, the filter mechanism 30 moves in the direction away from the inlet 11, and simultaneously the filter plate 35 rotates, and when the thrust of the water flow to the filter mechanism 30 is less than the thrust of the elastic member 36 to the filter mechanism 30, the filter mechanism 30 moves in the direction close to the inlet 11, thereby completing the switching of the filtering area of the filter plate 35.

Preferably, as shown in fig. 11 and 12, three filtering regions 352 are provided on the filtering plate 35, the size of the filtering regions 352 is the same as the diameter of the first guiding pipe 311, one of the filtering regions 352 corresponds to the first guiding pipe 311, and the filtering plate 35 switches the filtering region 352 corresponding to the first guiding pipe 311 once each time the filtering mechanism 30 performs a reciprocating motion.

Preferably, referring to fig. 3, the self-cleaning water pump 100 further includes a blower 50, the first housing 31 is provided with a second guide pipe 312, the blower 50 is provided on the second housing 32 and corresponds to the second guide pipe 321, and the blower 50 can reversely blow the filtering area 352.

It is understood that impurities in the water flow are blocked by the filtering section 352 and accumulated in the filtering section 352, and impurities adsorbed in the filtering section 352 can be blown off by reversely blowing the filtering section 352 by the fan 50, thereby cleaning the filtering section 352.

Preferably, a distance sensor 40 and a time-delay power-off switch (not shown) are arranged on the pump body 10, the time-delay power-off switch controls the start and stop of the fan 50, when the filtering mechanism 30 is far away from the distance sensor 40, the distance sensor 40 sends a signal to close the time-delay power-off switch, the fan 50 starts to blow the filtering plate 35, and after a preset time, the time-delay power-off switch is turned off.

In this embodiment, the time for powering off after the power-off delay switch is turned on may be 10 seconds.

Preferably, as shown in fig. 13, the zigzag sliding path 351 has a spiral section 3511 and a restoring section 3512 which are alternately arranged.

As shown in fig. 14 to 16, the protrusion 341 moves in the curved sliding way 351 in a flat display view of the curved sliding way 351.

Preferably, a third guide pipe 321 is disposed on the second housing 32, and the third guide pipe 321 is disposed coaxially with the first guide pipe 311.

Preferably, a sealing member 37 is disposed between the first guide tube 311 and the pump body 10, and between the third guide tube 321 and the pump body 10.

Preferably, the main flow passage includes: a horizontal section 131 extending along the horizontal direction and a vertical section 132 extending along the vertical direction, wherein one end of the horizontal section 131 is communicated with the inlet 11, one end of the vertical section 132 is communicated with the horizontal section 131, the other end is communicated with the outlet 12, and the outlet 12 is located at the top of the pump body 10.

The working mode of the invention is as follows: as shown in fig. 5 and 8, when the water pump works for a long time, the filter plate 35 is blocked, the resistance of the water flow is increased due to the blocking of the filter plate 35, the filter plate 35 moves in the direction away from the inlet 11 against the elastic force of the elastic member 36 under the pushing of the water, as shown in fig. 6 and 9, the projection 341 moves along the spiral section 3511 due to the cooperation of the zigzag chute 351 and the projection 341, so that the filter plate 35 rotates during the movement along the rotating shaft 34, thereby switching the filtering area 352 corresponding to the first guide pipe 311, at this time, the acting force of the water flow on the filter plate 35 is reduced, the filter plate 35 moves in the direction of the inlet 11 under the action of the elastic member 36, moves along the reset section 3512 of the zigzag chute 351, and the switching of the filtering area 352 is completed once. As shown in fig. 14 to fig. 16, in order to describe the moving process of the projection 341 in the zigzag sliding way 351 during one switching of the filter plate 35, initially, as shown in fig. 14, the projection 341 is at one end of the spiral section 3511 of the zigzag sliding way 351, the water flow pushes the filter plate 35, so that the projection 341 moves in the zigzag sliding way 351, it is worth mentioning that, as shown in the structure of the filter plate 35 shown in fig. 11, after the filter plate 35 rotates, the overlapping area of the filter area 352 and the first guiding pipe 311 is smaller, the resistance to the water flow is larger, and the filter plate 35 can be further pushed to move, as shown in fig. 15, the projection 341 moves to the other end of the spiral section 3511, at this time, the next filter area 352 rotates to the first guiding pipe 311, at this time, the resistance to the water flow is reduced, the filter plate 35 moves towards the inlet 11 under the push of the elastic member 36, as shown in fig. 16, the projection 341 moves to the next, the area to be filtered 352 is once again blocked, causing the next switch to be made when the resistance is too great.

In addition, distance sensor 40 detects the distance with first casing 31 in real time, when first casing 31 leaves distance sensor 40 and then resets, triggers distance sensor 40 and signals, closes the time delay outage switch, and fan 50 starts, and reverse blowing is used filtering area 352, will block up the particulate matter in filtering area 352 and blow off to filter area 352 cleans, after certain time, the time delay outage switch disconnection, fan 50 stop work.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A self-cleaning water pump comprises a pump body with an inlet and an outlet, wherein the inlet and the outlet are communicated through a main runner, an impeller is arranged in the main runner, the self-cleaning water pump is characterized in that a filtering mechanism movably arranged at the inlet is further included in the self-cleaning water pump, and the filtering mechanism comprises:

the first shell and the second shell are fixedly connected and form a filter cavity, a first guide pipe is arranged on the first shell and is in sliding connection with the pump body,

the rotating shaft is fixedly connected to the pump body, the rotating shaft is arranged in parallel with the main flow channel and penetrates through the middle parts of the first shell and the second shell, and a convex block is arranged on the side wall of the rotating shaft;

the filter plate is arranged in the filter cavity and is rotationally connected to the rotating shaft, a zigzag slideway is arranged on the filter plate, the convex block is positioned in the zigzag slideway, and when the filter plate moves backwards along the rotating shaft, the convex block moves in the zigzag slideway to enable the filter plate to rotate;

when the thrust of the water flow to the filtering mechanism is smaller than the thrust of the elastic piece to the filtering mechanism, the filtering mechanism moves towards the direction close to the inlet, so that the filtering area of the filtering plate is switched.

2. The self-cleaning water pump of claim 1, wherein the filter plate has three filter areas, the size of the filter areas is the same as the diameter of the first guide tube, one of the filter areas corresponds to the first guide tube, and the filter area is switched to the filter area corresponding to the first guide tube each time the filter mechanism performs a reciprocating motion.

3. The self-cleaning water pump of claim 2, further comprising a blower, wherein the first housing is provided with a second guide pipe, the blower is provided on the second housing and corresponds to the second guide pipe, and the blower can blow the filtering area in a reverse direction.

4. The self-cleaning water pump of claim 3, wherein the pump body is provided with a distance sensor and a time delay power-off switch, the time delay power-off switch controls the start and stop of the fan, when the filter mechanism is far away from the distance sensor, the distance sensor sends a signal to close the time delay power-off switch, the fan starts to blow the filter plate, and after a preset time, the time delay power-off switch is opened.

5. The self-cleaning water pump of claim 1, wherein the tortuous slide is formed by alternating helical sections and return sections.

6. The self-cleaning water pump of claim 1, wherein a third guide tube is disposed on the second housing, the third guide tube being disposed coaxially with the first guide tube.

7. The self-cleaning water pump of claim 6, wherein a seal is disposed between the first guide tube and the pump body and between the third guide tube and the pump body.

8. The water pump of claim 1, wherein the primary flow passage comprises:

a horizontal segment extending in a horizontal direction, one end of the horizontal segment being in communication with the inlet;

and the vertical section extends along the vertical direction, one end of the vertical section is communicated with the horizontal section, the other end of the vertical section is communicated with the outlet, and the outlet is positioned at the top of the pump body.