Axial flow pump with self-cleaning function of filter device

Abstract

The present invention discloses an axial flow pump with a self-cleaning function of a filtering device in the field of axial flow pump technology, comprising a pump body, a driving rod and a spiral blade, wherein the interior of the pump body is sleeved with a spiral blade, the top of the spiral blade is connected to the driving rod, the top of the driving rod extends to the outside of the pump body, the bottom of the pump body is sleeved with a guide mechanism, the bottom of the guide mechanism is provided with a connecting pipe, and the bottom of the connecting pipe is fixedly connected with a sliding plate. Firstly, with the cooperation of the first filter cover and the second filter cover, the water flow entering the pump can be filtered, which not only blocks larger debris to a great extent, but also has a good filtering effect on fine particulate impurities, and the impurities entering the interior and the iron filings dropped from the equipment itself can be blocked by the guiding mechanism to avoid contact with the spiral blades and damage to the spiral blades.

Description

Technical Field

[0001] The invention relates to the technical field of axial flow pumps, in particular to an axial flow pump with a self-cleaning function of a filtering device. Background Art

[0002] An axial flow pump is a pump that transports liquid along the axial direction by the force exerted by the blades of a rotating impeller on the liquid. It has the advantages of easy management and simple operation, but it still has some shortcomings in filtering impurities in the liquid and cleaning the body during operation.

[0003] Some invention patents in the field of axial flow pump technology are disclosed in the prior art. Among them, the invention patent with application number 201610838681.8 discloses an automatic filtering and cleaning device for an axial flow pump. The filter module provided can first filter the incoming medium to remove most of the impurities, and the cleaning module and the telescopic brush can clean the inner wall of the pump body to further reduce impurity contamination. The impurities cleaned can be collected through the integrated module for easy discharge, thereby reducing the probability of pump blockage and improving the operating efficiency of the pump.

[0004] However, due to the continuous operation of the pump body, a large amount of impurities and debris will adhere to the surface of the filter device, reducing the contact area between the filter device and the water. In addition, after long-term use, the filter holes of the filter device will absorb some debris and get stuck inside the filter holes due to the strong suction force of the pump. In the long run, this will greatly reduce the water flow efficiency of the filter device, thereby greatly limiting the pumping efficiency of the machine.

[0005] Based on this, the present invention designs an axial flow pump with a self-cleaning function of a filter device to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide an axial flow pump with a self-cleaning function for a filter device, so as to solve the problem that the attached matter on the surface of the filter device cannot be automatically removed in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an axial flow pump with a self-cleaning function of a filtering device, comprising a pump body, a driving rod and a spiral blade, wherein the interior of the pump body is sleeved with a spiral blade, the top of the spiral blade is connected to the driving rod, the top of the driving rod extends to the outside of the pump body, the bottom of the pump body is sleeved with a guide mechanism, the bottom of the guide mechanism is provided with a connecting pipe, the bottom of the connecting pipe is fixedly connected with a sliding plate, the outside of the sliding plate is sleeved with a first filter cover, the bottom of the sliding plate is fixedly connected with a clamping sleeve, and the outside of the clamping sleeve is clamped with a second filter cover sleeved inside the first filter cover and at the bottom of the sliding plate;

[0008] The first filter cover and the second filter cover have side walls with cavities formed inside, and the first filter cover and the second filter cover have filter holes formed on both inner and outer sides along the tangent direction, and the filter holes and the cavities are interconnected.

[0009] As a further solution of the present invention, the size of the inner diameter of the top of the first filter cover is larger than the size of the outer diameter of the connecting pipe, and the size of the inner diameter of the top of the first filter cover is smaller than the size of the outer diameter of the sliding plate.

[0010] As a further solution of the present invention, the difference between the inner diameter of the inner cavity of the first filter cover and the inner diameter of its top is greater than the difference between the outer diameter of the sliding plate and the outer diameter of the connecting tube, the outer diameter of the first filter cover is the same as the outer diameter of the sliding plate, and the inner diameter of the first filter cover is the same as the inner diameter of the sliding plate and the connecting tube.

[0011] As a further solution of the present invention, a connecting tube is provided inside the cavity, a water outlet is provided at one end of the connecting tube, the water outlet is connected to the inner wall of the first filter cover or the second filter cover through a filter hole, and a water inlet is provided at the other end of the connecting tube, the water inlet is connected to the outside of the first filter cover or the second filter cover through the filter hole.

[0012] As a further solution of the present invention, a rubber top block is connected to one side of the surface of the first filter cover, and a rubber blocking block is connected to the other side of the surface of the first filter cover. The rubber top block and the rubber blocking block are in contact with the inner wall of the first filter cover.

[0013] As a further solution of the present invention, a material collecting cover is threadedly sleeved on the bottom of the pump body, a discharge plate is threadedly sleeved on the bottom of the material collecting cover, and the discharge plate is fixedly sleeved on the outside of the connecting pipe pair.

[0014] As a further solution of the present invention, the guide mechanism includes a conical filter cover, which is sleeved inside the pump body, and the bottom of the conical filter cover is fixedly connected to a guide plate, the outer side of the guide plate is fixedly sleeved with a limit plate, the guide plate is in contact with the top of the connecting pipe, and the (sleeved inside the collection cover.

[0015] As a further solution of the present invention, the interior of the collecting cover is fixedly sleeved with a positioning plate located above the limiting plate, the interior of the collecting cover is wrapped with a return spring located between the limiting plate and the positioning plate, and both ends of the return spring are connected to the limiting plate and the positioning plate.

[0016] As a further solution of the present invention, a support block is provided at the bottom of the conical filter cover, the bottom of the support block is connected to the second filter cover through a transmission rod, and the facing surfaces of the support block and the conical filter cover are both provided with evenly distributed toggle blocks.

[0017] As a further solution of the present invention, the toggle block installed on the top of the support block has inclined surfaces on both sides of its top, and the toggle block installed on the bottom of the conical filter cover has inclined surfaces on the left and right sides of its bottom.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. First, with the cooperation of the first filter cover and the second filter cover, the water flow entering the pump can be filtered, which not only blocks larger debris to a great extent, but also has a good filtering effect on fine particulate impurities. The guide mechanism can block the impurities entering the interior and the iron filings dropped by the equipment itself, avoiding contact with the spiral blades and causing damage to the spiral blades.

[0020] 2. Through the cooperation of the filter hole and the connecting pipe, the pumped water flow can impact the first filter cover and the second filter cover, thereby making them rotate. Due to the rotation of the first filter cover, most of the foreign matter attached to its surface can be thrown out, thereby improving the efficiency of the pumped water flow, and achieving the effect of automatically cleaning the filter device during the operation of the pump. The rotation of the second filter cover can push the first filter cover through the rubber top block and the rubber blocking block under the present of the connecting pipe and the sliding plate, so that it moves sideways, thereby achieving the effect of polarizing the first filter cover and vibrating out the foreign matter stuck in the filter hole, thereby achieving the effect of automatically cleaning the inside of the filter device.

[0021] 3. Since the rotation of the second filter cover can drive the support block to rotate through the transmission rod, and the rotation of the support block can continuously hit the conical filter cover with the cooperation of the toggle block, so that it vibrates up and down, so as to achieve the effect of shaking off impurities or iron filings attached to its surface, and then under the impact of the water flow, it can slide along the inclined surface of the guide plate to the inside of the collection cover, and under the elastic recovery action of the reset spring, the support block and the toggle block can be cooperated to make the conical filter cover and the guide plate vibrate up and down continuously as a whole, and finally the magazines or debris accumulated inside the collection cover can be discharged through the unloading plate to facilitate cleaning by the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a front view structural schematic diagram of the present invention;

[0024] Figure 3 It is a schematic diagram of the top view of the structure of the present invention;

[0025] Figure 4 It is a cross-sectional view of the front side of the present invention;

[0026] Figure 5 for Figure 4A local enlarged schematic diagram of the middle A;

[0027] Figure 6 for Figure 4 A partial enlarged schematic diagram of point B in the middle;

[0028] Figure 7 It is a cross-sectional view of the top of the first filter cover of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the guide mechanism of the present invention;

[0030] Fig. 9 It is a cross-sectional view of the front side of the guide mechanism of the present invention;

[0031] Fig.10 It is a structural schematic diagram of the connecting pipe of the present invention;

[0032] Fig.11 This is a schematic diagram of the installation of the toggle block of the present invention;

[0033] Fig.12 It is a motion schematic diagram of the toggle block of the present invention.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] Parts: 1. Pump body; 2. Driving rod; 3. Spiral blade; 4. Guide mechanism; 41. Conical filter cover; 42. Guide plate; 43. Limit plate; 44. Positioning plate; 45. Reset spring; 5. Connecting pipe; 6. Sliding plate; 7. First filter cover; 8. Snap-on sleeve; 9. Second filter cover; 10. Cavity; 11. Filter hole; 12. Connecting pipe; 13. Water outlet; 14. Water inlet; 15. Rubber top block; 16. Rubber blocking block; 17. Transmission rod; 18. Support block; 19. Toggle block; 20. Collecting cover; 21. Discharge plate. DETAILED DESCRIPTION

[0036] See also Figure 1-12 The present invention provides a technical solution: an axial flow pump with a self-cleaning function of a filtering device, comprising a pump body 1, a driving rod 2 and a spiral blade 3, the inside of the pump body 1 is sleeved with the spiral blade 3, the top of the spiral blade 3 is connected to the driving rod 2, the top of the driving rod 2 extends to the outside of the pump body 1, the bottom of the pump body 1 is sleeved with a guide mechanism 4, the bottom of the guide mechanism 4 is provided with a connecting pipe 5, the bottom of the connecting pipe 5 is fixedly connected with a sliding plate 6, the outside of the sliding plate 6 is sleeved with a first filter cover 7, the bottom of the sliding plate 6 is fixedly connected with a clamping sleeve 8, and the outside of the clamping sleeve 8 is clamped with a second filter cover 9 sleeved inside the first filter cover 7 and the bottom of the sliding plate 6;

[0037] The first filter cover 7 and the second filter cover 9 can filter the water flow entering the pump, which not only blocks large debris to a great extent, but also has a good filtering effect on fine particle impurities. The guide mechanism 4 can block the impurities entering the interior and the iron filings dropped by the equipment itself, so as to avoid contact with the spiral blade 3 and damage to the spiral blade 3.

[0038] The first filter cover 7 and the second filter cover 9 have side walls with cavities 10 formed therein, and the first filter cover 7 and the second filter cover 9 have filter holes 11 formed on both inner and outer sides, and the filter holes 11 and the cavities 10 are connected to each other;

[0039] The opened cavity 10 can not only greatly reduce the weight of the first filter cover 7 and the second filter cover 9, but also facilitate the installation of the connecting pipe 12, so that the first filter cover 7 and the second filter cover 9 can rotate with the impact of the water flow.

[0040] like Figure 4 As shown, the size of the inner diameter of the top of the first filter cover 7 is larger than the size of the outer diameter of the connecting pipe 5, and the size of the inner diameter of the top of the first filter cover 7 is smaller than the size of the outer diameter of the sliding plate 6;

[0041] The connecting tube 5 can be used to connect the first filter cover 7 and ensure that the first filter cover 7 can be polarized, and the top inner cavity thereof is in contact with the surface of the connecting tube 5, thereby ensuring that the first filter cover 7 is always polarized within a certain range.

[0042] like Figure 4 As shown, the difference between the inner diameter of the inner cavity of the first filter cover 7 and the inner diameter of the top thereof is greater than the difference between the outer diameter of the sliding plate 6 and the outer diameter of the connecting pipe 5, the outer diameter of the first filter cover 7 is the same as the outer diameter of the sliding plate 6, and the inner diameter of the first filter cover 7 is the same as the inner diameter of the sliding plate 6 and the connecting pipe 5;

[0043] While ensuring the continuous polarization of the first filter cover 7, it can ensure that the sliding plate 6 can always cover the top inner cavity of the first filter cover 7, ensuring that the water flow after entering the first filter cover 7 can enter the interior of the second filter cover 9 from the side of the second filter cover 9.

[0044] like Fig.10 As shown, a connecting pipe 12 is provided inside the cavity 10, and a water outlet 13 is provided at one end of the connecting pipe 12, and the water outlet 13 is connected to the inner wall of the first filter cover 7 or the second filter cover 9 through the filter hole 11, and a water inlet 14 is provided at the other end of the connecting pipe 12, and the water inlet 14 is connected to the outside of the first filter cover 7 or the second filter cover 9 through the filter hole 11;

[0045] The connecting tube 12 can be connected to the filter holes 11 on both sides of the inner cavity 10 of the first filter cover 7 or the second filter cover 9 through the water outlet end 13 and the water inlet end 14 to ensure that the water flow has enough stroke to impact the connecting tube 12 to drive the first filter cover 7 or the second filter cover 9 to rotate.

[0046] like Figure 7 As shown, a rubber top block 15 is connected to one side of the surface of the first filter cover 7, and a rubber blocking block 16 is connected to the other side of the surface of the first filter cover 7. The rubber top block 15 and the rubber blocking block 16 are in contact with the inner wall of the first filter cover 7;

[0047] The difference between the inner and outer diameters of the rubber top block 15 is greater than the difference between the inner and outer diameters of the rubber blocking block 16. Therefore, when the second filter cover 9 rotates, the rubber top block 15 can drive the rubber blocking block 16 to be continuously polarized, and at the same time, it can ensure that the rubber top block 15 and the rubber blocking block 16 can always block the filter holes in the polarization direction, ensuring that foreign matter in the filter holes on one side is vibrated out, and at the same time preventing foreign matter in the filter holes on the other side from entering between the first filter cover 7 and the second filter cover 9.

[0048] like Figure 4 As shown, a material collecting cover 20 is threadedly sleeved at the bottom of the pump body 1, and a material discharging plate 21 is threadedly sleeved at the bottom of the material collecting cover 20, and the material discharging plate 21 is fixedly sleeved on the outside of the connecting pipe 5;

[0049] The collecting cover 20 and the discharge plate 21 can connect the pump body 1 and the connecting pipe 5, and can recover and discharge impurities or iron filings with the cooperation of the guide mechanism 4.

[0050] like Fig. 9 As shown, the guide mechanism 4 includes a conical filter cover 41, which is sleeved inside the pump body 1, and a guide plate 42 is fixedly connected to the bottom of the conical filter cover 41, and a limit plate 43 is fixedly sleeved on the outer side of the guide plate 42, and the guide plate 42 contacts the top of the connecting pipe 5, and 43 is sleeved inside the collecting cover 20;

[0051] Due to the rotation of the support block 18, the conical filter cover 41 can be continuously hit with the cooperation of the toggle blocks 19 on both sides to move it upward. The movement of the conical filter cover 41 can drive the limit plate 43 to move upward through the guide plate 42, and at the same time, the adsorption on the conical filter cover 41 can be improved to prevent the debris from detaching, so as to ensure that the water flow can bring it into the interior of the aggregate cover 20.

[0052] like Figure 6 As shown, a positioning plate 44 located above the limiting plate 43 is fixedly sleeved inside the collecting cover 20, and a return spring 45 located between the limiting plate 43 and the positioning plate 44 is wound around the inside of the collecting cover 20, and both ends of the return spring 45 are connected to the limiting plate 43 and the positioning plate 44;

[0053] Since the movement of the limit plate 43 can squeeze the return spring 45 to increase its elastic recovery performance under the restriction of the collection cover 20 on the positioning plate 44, when the support block 18 continues to rotate and its top toggle block 19 is separated from the bottom toggle block 19 of the conical filter cover 41, the conical filter cover 41 and the guide plate 42 can move downward as a whole, thereby achieving a continuous vibration effect.

[0054] like Figure 5 As shown, a support block 18 is provided at the bottom of the conical filter cover 41, and the bottom of the support block 18 is connected to the second filter cover 9 through a transmission rod 17. The facing surfaces of the support block 18 and the conical filter cover 41 are both provided with evenly distributed toggle blocks 19.

[0055] The toggle block 19 installed on the top of the support block 18 has inclined surfaces on both sides of its top, and the toggle block 19 installed on the bottom of the conical filter cover 41 has inclined surfaces on the left and right sides of its bottom;

[0056] As the second filter cover 9 rotates, the support block 18 can be driven to rotate via the transmission rod 17. The rotation of the support block 18 can continuously and intermittently push the conical filter cover 41 upward under the cooperation of the inclined guides of the upper and lower side sliding blocks 19, and move downward under the push of gravity and the return spring 45, thereby achieving the effect of continuous vibration of the conical filter cover 41.

[0057] Working principle:

[0058] After the equipment is assembled and opened as shown in the figure, the driving rod 2 can drive the spiral blade 3 to rotate quickly, and the rotation of the spiral blade 3 can pump water in cooperation with the pump body 1, the guide mechanism 4, the connecting pipe 5, the first filter cover 7 and the second filter cover 9, and as the water flows, it can impact the inner walls of the first filter cover 7 and the second filter cover 9 with the cooperation of the connecting pipe 12, so that the first filter cover 7 and the second filter cover 9 rotate. Due to the rotation of the first filter cover 7, foreign matter attached to its surface due to the suction of the pump can be thrown out to avoid blocking the filter holes of the first filter cover 7; and the rotation of the second filter cover 9 can similarly achieve the effect of preventing smaller debris from being adsorbed on its surface. At the same time, the rotation of the first filter cover 7 can push the first filter cover 7 to move sideways through the rubber top block 15 under the restriction of the connecting pipe 5 on the first filter cover 7 and the sliding plate 6 on the second filter cover 9, so as to prevent the filter hole of the first filter cover 7 from being blocked. And achieve the effect of polarizing it, and because the rubber blocking block 16 and the rubber top block 15 are in the same radial direction, when the rubber top block 15 pushes the first filter cover 7 to move to one side, firstly, the rubber top block 15 can block the filter holes on the surface of the first filter cover 7 in the moving direction, so as to prevent foreign matter in the hole from entering between the first filter cover 7 and the second filter cover 9 due to inertia, and at the same time, because the rubber blocking block 16 blocks the filter holes on the other side of the surface of the first filter cover 7 along the same radial direction, at this time, it can prevent the water flow from entering between the first filter cover 7 and the second filter cover 9 through the filter holes here, so it can be avoided that the water flow drives the foreign matter inside the filter hole here to move further between the first filter cover 7 and the second filter cover 9, and because the filter hole here is in the vibration radial direction at this time, the foreign matter stuck inside the filter hole can be diagnosed and vibrated out to a great extent under the inertia of the foreign matter;

[0059] When the second filter cover 9 rotates, the support block 18 can be driven to rotate through the transmission rod 17, and the rotation of the support block 18 can continuously hit the conical filter cover 41 with the cooperation of the toggle blocks 19 on both sides to make it move upward. Since the movement of the conical filter cover 41 can drive the limit plate 43 to move upward through the guide plate 42, and the movement of the limit plate 43 can squeeze the return spring 45 to increase its elastic recovery performance under the restriction of the collection cover 20 on the positioning plate 44, when the support block 18 continues to rotate and the top toggle block 19 is separated from the bottom toggle block 19 of the conical filter cover 41, the conical filter cover 41 and the guide plate 42 can be moved downward as a whole, thereby achieving a continuous vibration effect. At the same time, under the guidance of the inclined surface of the conical filter cover 41, impurities or iron filings attached to its surface can flow to the inside of the collection cover 20, and finally, the unloading plate 21 can be rotated out to discharge the impurities or iron filings accumulated inside the collection cover 20.

Claims

1. An axial flow pump with a filter device and a self-cleaning function, comprising a pump body (1), a drive rod (2) and a spiral blade (3), characterized in that: The pump body (1) is sleeved with a spiral blade (3) inside, the top of the spiral blade (3) is connected to a driving rod (2), the top of the driving rod (2) extends to the outside of the pump body (1), the bottom of the pump body (1) is sleeved with a guide mechanism (4), the bottom of the guide mechanism (4) is provided with a first connecting pipe (5), the bottom of the first connecting pipe (5) is fixedly connected to a sliding plate (6), the outside of the sliding plate (6) is sleeved with a first filter cover (7), the bottom of the sliding plate (6) is fixedly connected to a clamping sleeve (8), and the outside of the clamping sleeve (8) is clamped with a second filter cover (9) sleeved inside the first filter cover (7) and the bottom of the sliding plate (6); The first filter cover (7) and the second filter cover (9) are provided with cavities (10) in their side walls, and the first filter cover (7) and the second filter cover (9) are provided with filter holes (11) in their inner and outer sides along the tangent direction, the filter holes (11) and the cavities (10) are connected to each other, and a second connecting pipe (12) is provided in the cavity (10); The size of the inner diameter of the top of the first filter cover (7) is larger than the size of the outer diameter of the first connecting pipe (5), and the size of the inner diameter of the top of the first filter cover (7) is smaller than the size of the outer diameter of the sliding plate (6); The difference between the inner diameter of the inner cavity of the first filter cover (7) and the inner diameter of the top thereof is greater than the difference between the outer diameter of the sliding plate (6) and the outer diameter of the first connecting tube (5); the outer diameter of the first filter cover (7) is the same as the outer diameter of the sliding plate (6); and the inner diameter of the first filter cover (7) is the same as the inner diameter of the sliding plate (6) and the first connecting tube (5); One end of the second connecting pipe (12) is provided with a water outlet (13), and the water outlet (13) is connected to the inner wall of the first filter cover (7) or the second filter cover (9) through the filter hole (11); the other end of the second connecting pipe (12) is provided with a water inlet (14), and the water inlet (14) is connected to the outside of the first filter cover (7) or the second filter cover (9) through the filter hole (11); A rubber top block (15) is connected to one side of the surface of the first filter cover (7), and a rubber blocking block (16) is connected to the other side of the surface of the first filter cover (7), and the rubber top block (15) and the rubber blocking block (16) are in contact with the inner wall of the first filter cover (7); The bottom of the pump body (1) is threadedly sleeved with a material collecting cover (20), the bottom of the material collecting cover (20) is threadedly sleeved with a material discharge plate (21), and the material discharge plate (21) is fixedly sleeved on the outside of the first connecting pipe (5).

2. An axial flow pump with a self-cleaning filter device according to claim 1, characterized in that: The guide mechanism (4) comprises a conical filter cover (41), the conical filter cover (41) is sleeved inside the pump body (1), the bottom of the conical filter cover (41) is fixedly connected to a guide plate (42), the outer side of the guide plate (42) is fixedly sleeved with a limit plate (43), the guide plate (42) is in contact with the top of the first connecting pipe (5), and the limit plate (43) is sleeved inside the collecting cover (20).

3. The axial flow pump with a self-cleaning filter device according to claim 1, characterized in that: A positioning plate (44) located above the limiting plate (43) is fixedly sleeved inside the collecting cover (20), and a return spring (45) located between the limiting plate (43) and the positioning plate (44) is wound around the inside of the collecting cover (20), and two ends of the return spring (45) are connected to the limiting plate (43) and the positioning plate (44).

4. The axial flow pump with a self-cleaning filter device according to claim 2, characterized in that: A support block (18) is provided at the bottom of the conical filter cover (41), the bottom of the support block (18) is connected to the second filter cover (9) via a transmission rod (17), and evenly distributed toggle blocks (19) are provided on the facing surfaces of the support block (18) and the conical filter cover (41).

5. An axial flow pump with a self-cleaning filter device according to claim 4, characterized in that: The contact surfaces of the toggle block (19) located on the support block (18) and the toggle block (19) located on the conical filter cover (41) are both inclined surfaces.

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