CN110821846B

CN110821846B - Water inlet anti-blocking type submersible axial flow pump

Info

Publication number: CN110821846B
Application number: CN201911210766.1A
Authority: CN
Inventors: 许万明
Original assignee: Tianchang Zhongtian Industry Co ltd
Current assignee: Tianchang Zhongtian Industry Co ltd
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2021-04-27
Anticipated expiration: 2039-12-02
Also published as: CN110821846A

Abstract

The invention relates to the technical field of blockage prevention of a water inlet of a submersible axial-flow pump, and discloses a water inlet blockage prevention type submersible axial-flow pump, which comprises a pump body, wherein the right side surface of the pump body is communicated with a water outlet pipe orifice, the bottom of the pump body is communicated with a water inlet pipe orifice, the water inlet pipe orifice comprises a pipe body, the bottom of the pipe body is provided with a pipe hole, an annular sealing cavity is formed in the pipe body, six electromagnets are fixedly connected to the inner side wall of the annular sealing cavity at equal angles, six insert rods are movably inserted into the inner side wall of the annular sealing cavity at equal angles, a fixing ring is fixedly connected to the outer circular surface of each insert rod, a first spring is fixedly connected between the fixing ring and the side surface, close to the annular sealing cavity. The invention solves the problems that the filter screen of the water inlet pipe mouth of most of the existing submersible axial-flow pumps is easy to block, and the cleaning effect of part of submersible axial-flow pumps with the function of automatically cleaning the filter screen is poor.

Description

Water inlet anti-blocking type submersible axial flow pump

Technical Field

The invention relates to the technical field of blockage prevention of a water inlet of a submersible axial-flow pump, in particular to a submersible axial-flow pump with a blockage-preventing water inlet.

Background

It has the characteristics that the flow is big, the lift is disconnected that dive axial-flow pump it has, fields such as extensive application and city plumbing, irrigation, drainage, in order to protect the safety of water conservancy spare such as the inside impeller of dive axial-flow pump, the filter screen can be installed to the water inlet pipe mouth of pipe of pump to filter the impurity of aquatic, but along with operating time's increase, impurity on the filter screen can accumulate gradually, blocks rivers gradually and goes to the pump midstream, has reduced the pump water yield, serious can cause the unable normal work of axial-flow pump even.

An improved generation dive axial-flow pump has been published in the chinese utility model patent of grant bulletin number CN208749593U, among this dive axial-flow pump, makes the pump body link to each other with coarse strainer through connecting first spring, can produce the vibration when the pump during operation to make the coarse strainer take place the vibration through first spring, shake off the impurity on the coarse strainer, in order to reach the effect of clearing up the coarse strainer.

However, the impurities attached to the filter screen have large viscosity or extend into the mesh, and are difficult to clean by the vibration of the pump during operation, so that a good cleaning effect cannot be achieved.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a submersible axial-flow pump with an anti-blocking water inlet, which solves the problems that most of existing submersible axial-flow pumps are easy to block a filter screen at a water inlet pipe orifice and the cleaning effect of part of submersible axial-flow pumps with the function of automatically cleaning the filter screen is poor.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a water inlet anti-blocking type submersible axial-flow pump comprises a pump body, wherein a water outlet pipe orifice is communicated with the right side surface of the pump body, and a water inlet pipe orifice is communicated with the bottom of the pump body;

the water inlet pipe orifice comprises a pipe body, the bottom of the pipe body is provided with a pipe hole, an annular sealing cavity is formed in the pipe body, six electromagnets are fixedly connected with the inner side wall of the annular sealing cavity at equal angles, six insertion rods are movably inserted into the inner side wall of the annular sealing cavity at equal angles, a fixing ring is fixedly sleeved on the outer circular surface of each insertion rod, a first spring is fixedly connected between the fixing ring and the side face, close to the annular sealing cavity, of each insertion rod, an iron block is fixedly connected to one end, far away from the insertion rods, of each insertion rod, one end, close to the insertion rods, of each insertion rod penetrates through the inner side wall of the annular sealing cavity and is fixedly inserted with a filter screen frame, a filter screen plate is fixedly connected to the inner wall;

the opening has been seted up to the inside wall in annular seal chamber, fixedly connected with pressure membrane between the open-ended inner wall, the pull ring that distributes about two right flank symmetry fixedly connected with of pressure membrane, fixedly connected with baffle between the lateral wall in annular seal chamber and the opening inner bottom wall, the top fixed mounting of baffle has the button, pass through wire electric connection between button and the electro-magnet, the top sliding connection of baffle has the slider, open the side of slider has the arc wall, the right flank fixedly connected with feeler lever of slider, and feeler lever are located the positive left side of button, the right flank fixedly connected with electric telescopic handle of slider, two second springs of symmetry fixedly connected with between the right flank of slider and the annular seal chamber lateral wall, fixedly connected with stay cord between two pull rings, and the stay cord runs through the arc wall.

Preferably, the bottom end of the water inlet pipe opening is fixedly connected with a pocket net.

Preferably, the inner circular surface of the filter screen frame is fixedly connected with a filter screen, and the outer circular surface of the filter screen frame on the lower side is provided with six insertion holes at equal angles and respectively corresponds to six insertion rods.

Preferably, the density of the screen frame is greater than the density of water.

Preferably, the pressure membrane is a thickened polyester film.

(III) advantageous effects

Compared with the prior art, the invention provides the anti-blocking type submersible axial-flow pump for the water inlet, which has the following beneficial effects:

1. according to the invention, through the arranged pressure membrane and the slide rod, when the filter screen is blocked, the water flow passing through the pump is reduced, so that the friction force of the water flow on the inner wall of the pipe hole is reduced, the friction force on the pressure membrane is reduced, the pressure membrane drives the touch rod to move rightwards through the pull ring, the pull rope and the slide block to trigger the button, the electromagnet is electrified to adsorb the iron block, the iron block drives the insertion rod to overcome the elastic action of the first spring to slide towards the direction of the electromagnet, the insertion rod is pulled out from the jack on the filter screen frame, the filter screen frame loses the fixing force and falls from the pipe hole, and the filter screen blocked by excessive impurities does not participate in the filtering work any more, so that the water flow passing through the pump is improved, and the normal work.

2. According to the invention, through the arrangement of the filter screen plate and the filter screen frame, when the filter screen frame is seriously blocked, the filter screen plate can be automatically dropped off, so that the filter screen plate at the inner layer is directly contacted with the water flow outside the pump to start filtering work until the filter screen plate is also seriously blocked and the pump cannot normally work.

3. According to the invention, the filter screen plate is fixedly connected to the inner wall of the pipe body and cannot fall off, so that impurities can be prevented from directly entering the pump body after the filter screen plate also falls off to damage other hydraulic parts in the pump body, and the safety of the pump is effectively protected.

4. According to the invention, through the arranged electric telescopic rod, when the pump does not work, the electric telescopic rod extends to abut against the inner side wall of the annular sealing cavity, so that the contact rod cannot touch the button, the electromagnet cannot be powered, the filter screen frame is further ensured to be fixedly clamped by the insertion rod, the filter screen frame cannot fall off in the moving and carrying process, when the pump works, a worker starts the electric telescopic rod to contract to the lowest point, the sliding block is not hindered to drive the contact rod to normally move, and the normal work of the pump is ensured.

Drawings

FIG. 1 is a front view of an anti-clogging submersible axial flow pump for water inlet according to the present invention;

FIG. 2 is a front cross-sectional view of the water inlet nozzle of the present invention;

FIG. 3 is a front cross-sectional view of a screen frame of the present invention;

fig. 4 is an enlarged view of the invention at a in fig. 2.

In the figure: the pump body 1, the water outlet pipe mouth 2, the water inlet pipe mouth 3, the pipe body 301, the annular sealing cavity 302, the electromagnet 303, the inserted rod 304, the fixed ring 305, the first spring 306, the iron block 307, the screen frame 308, the pressure membrane 309, the pull ring 310, the guide plate 311, the button 312, the slide block 313, the electric telescopic rod 314, the second spring 315 and the pull rope 316.

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.

As shown in fig. 1 to 4, the present invention provides a technical solution: a water inlet anti-blocking type submersible axial flow pump comprises a pump body 1, wherein the right side surface of the pump body 1 is communicated with a water outlet pipe orifice 2, the bottom of the pump body 1 is communicated with a water inlet pipe orifice 3, the bottom end of the water inlet pipe orifice 3 is fixedly connected with a metal bag net frame, the water inlet pipe orifice 3 is prevented from being blocked due to direct contact with underwater sludge and cannot normally work, and a dropped filter net frame 308 can be prevented from directly falling into the water bottom and cannot be recycled;

the water inlet pipe orifice 3 comprises a pipe body 301, the bottom of the pipe body 301 is provided with a pipe hole, an annular sealing cavity 302 is arranged in the pipe body 301, six electromagnets 303 are fixedly connected with the inner side wall of the annular sealing cavity 302 at equal angles, six insertion rods 304 are movably inserted in the inner side wall of the annular sealing cavity 302 at equal angles, a fixing ring 305 is fixedly sleeved on the outer circular surface of the insertion rod 304, a first spring 306 is fixedly connected between the fixing ring 305 and the side surface close to the annular sealing cavity 302, one end far away from the insertion rod 304 is fixedly connected with an iron block 307, one end close to the insertion rod 304 penetrates through the inner side wall of the annular sealing cavity 302 and is fixedly inserted with a filter screen frame 308, a filter screen plate is fixedly connected on the inner wall of the pipe body 301 and is positioned right above the filter screen frame 308, a filter screen is fixedly connected to the inner circular surface of the filter screen frame 308, six insertion holes are arranged at equal angles on, the density of the filter screen frame 308 is greater than that of water, so that the filter screen frame 308 can fall off from the water inlet pipe orifice after falling off, and water inlet is not hindered;

the inner side wall of the annular sealing cavity 302 is provided with an opening, a pressure membrane 309 is fixedly connected between the inner walls of the opening, the pressure membrane 309 is a thickened polyester film and has the characteristics of moisture resistance, high toughness, high strength and softness, and the pressure membrane can reliably and permanently work, two pull rings 310 which are distributed up and down are symmetrically and fixedly connected to the right side surface of the pressure membrane 309, a guide plate 311 is fixedly connected between the outer side wall of the annular sealing cavity 302 and the inner bottom wall of the opening, a button 312 is fixedly installed at the top of the guide plate 311, the button 312 is electrically connected with the electromagnet 303 through a lead wire to realize the automatic falling of the filter screen frame 308, a slide block 313 is slidably connected to the top of the guide plate 311, an arc-shaped groove is formed on the side surface of the slide block 313, a touch rod is fixedly connected to the right side surface of the slide block 313 and is positioned on the right left side of the button 312, an electric telescopic rod 314 is fixedly connected to the right side, a pull rope 316 is fixedly connected between the two pull rings 310, and the pull rope 316 penetrates through the arc-shaped groove.

The working principle is as follows: during operation, the motor in the pump body 1 is powered on to start working and enter a stable working state, and then the worker starts the electric telescopic rod 314 to move leftwards, so that the electric telescopic rod 314 leaves the inner side wall of the annular sealing cavity 302, and the supporting force of the electric telescopic rod 314 to the sliding block 313 to the left disappears.

Because the filter screen does not have impurities attached to the filter screen at the beginning of work, the water flow is smooth, the flow speed of the water flow is high when the water flow passes through the pipe body 301, the friction force of the water flow on the inner side wall of the pipe body 301 is also high, meanwhile, the friction force of the water flow on the left side surface of the pressure membrane 309 is also high, the pressure membrane 309 is enabled to shrink upwards, so that the middle upper part of the pressure membrane 309 shrinks and wrinkles, the middle lower part of the pressure membrane 309 stretches and tightens, so that the distance between the two pull rings 310 is increased, the two pull rings 310 pull the sliding block 313 leftwards through the pull rope 316, so that the touch bar is far away from the button 312, along with the increase of the working time of the pump, the impurities attached to the outer layer filter screen are more and more increased, the water flow passing through the pump is smaller and less, the friction force of the water flow on the, the distance between two pull rings 310 diminishes, the pulling force of stay cord 316 to slider 313 diminishes, slider 313 slides right under the pulling force effect of second spring 315, thereby make touch bar trigger button 312, make electro-magnet 303 hold iron plate 307 by the electric adsorption, iron plate 307 drives inserted bar 304 and overcomes the elastic force effect of first spring 306 and slides to the direction of electro-magnet 303, thereby make inserted bar 304 take out from the jack on filter screen frame 308, filter screen frame 308 loses the fixity and falls from the pipe hole, thereby make not by the direct and pump outside rivers contact of the adnexed filter screen board of too much impurity, make the rivers through the pump increase once more, the time of pump normal work has been prolonged.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a water inlet prevents stifled formula dive axial-flow pump, includes the pump body (1), its characterized in that: the right side surface of the pump body (1) is communicated with a water outlet pipe orifice (2), and the bottom of the pump body (1) is communicated with a water inlet pipe orifice (3);

the water inlet pipe orifice (3) comprises a pipe body (301), the bottom of the pipe body (301) is provided with a pipe hole, an annular sealing cavity (302) is formed in the pipe body (301), six electromagnets (303) are fixedly connected to the inner side wall of the annular sealing cavity (302) at equal angles, six insertion rods (304) are inserted into the inner side wall of the annular sealing cavity (302) at equal angles in an inserting mode, a fixing ring (305) is fixedly connected to the outer circular surface of each insertion rod (304) in a fixing mode, a first spring (306) is fixedly connected between the fixing ring (305) and the side face, close to the annular sealing cavity (302), of each insertion rod (304), an iron block (307) is fixedly connected to one end, far away from the insertion rods (304), of each insertion rod (304) penetrates through the inner side wall of the annular sealing cavity (302) and is fixedly inserted with a filter screen frame (308), and the inner wall of the pipe, and the filter screen plate (308) is positioned right above the filter screen frame (308);

the inner side wall of the annular sealing cavity (302) is provided with an opening, a pressure membrane (309) is fixedly connected between the inner walls of the openings, two pull rings (310) which are distributed up and down are symmetrically and fixedly connected to the right side surface of the pressure membrane (309), a guide plate (311) is fixedly connected between the outer side wall of the annular sealing cavity (302) and the inner bottom wall of the opening, a button (312) is fixedly installed at the top of the guide plate (311), the button (312) is electrically connected with the electromagnet (303) through a conducting wire, a sliding block (313) is slidably connected to the top of the guide plate (311), an arc-shaped groove is formed in the side surface of the sliding block (313), a touch rod is fixedly connected to the right side surface of the sliding block (313), the touch rod is located on the right left side of the button (312), an electric telescopic rod (314) is fixedly connected to the right side surface of the sliding block (313), and two second springs (315) are symmetrically and fixedly, a pull rope (316) is fixedly connected between the two pull rings (310), and the pull rope (316) penetrates through the arc-shaped groove.

2. The anti-blocking type submersible axial-flow pump for the water inlet according to claim 1, which is characterized in that: the bottom end of the water inlet pipe orifice (3) is fixedly connected with a pocket net.

3. The anti-blocking type submersible axial-flow pump for the water inlet according to claim 1, which is characterized in that: the inner circular surface of the filter screen frame (308) is fixedly connected with a filter screen, and the outer circular surface of the filter screen frame (308) on the lower side is equiangularly provided with six insertion holes which respectively correspond to the six insertion rods (304).

4. The anti-blocking type submersible axial-flow pump for the water inlet according to claim 1, which is characterized in that: the screen frame (308) has a density greater than that of water.

5. The anti-blocking type submersible axial-flow pump for the water inlet according to claim 1, which is characterized in that: the pressure membrane (309) is a thickened polyester film.