A flexible impeller pump

Abstract

The present invention relates to the technical field of impeller pumps, and discloses a flexible impeller pump, including a pump body, the pump body is connected with a liquid inlet and a liquid outlet, a flexible blade is installed in the pump body, an eccentric block is connected to the inner wall of the pump body, the liquid inlet and the liquid outlet are symmetrically arranged about the eccentric block, and a filtering and cleaning mechanism is installed at the liquid inlet; the filtering and cleaning mechanism includes a filter screen, the filter screen is connected to the hole wall at the position of the liquid inlet far from one end of the pump body, and the hole wall at the position of the liquid inlet close to one end of the pump body is connected to a support shaft through two symmetrically arranged rotating parts, the shaft wall of the support shaft is fixedly sleeved with a fan blade, and the shaft wall of the support shaft is connected with a driving shaft through a transmission member. The present invention improves the output effect of the flexible impeller pump on the liquid, and at the same time, the cleaning brush reciprocates on the filter screen with a half-turn as a stroke, cleans the filter screen from the inside of the filter screen, and prevents the filter screen from being blocked.

Description

Technical Field

[0001] The invention relates to the technical field of impeller pumps, and in particular to a flexible impeller pump. Background Art

[0002] Flexible impeller pumps have obvious advantages when conveying small amounts of oil. They have the characteristics of long-term self-priming performance and volumetric efficiency. When maintenance is required, they can be easily disassembled and parts with severe wear can be easily replaced. However, at present, flexible impeller pumps have poor output effects on liquids and are unable to filter impurities passing through the impeller pump. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that the flexible impeller pump in the prior art has poor output effect on liquid and cannot filter impurities passing through the impeller pump, and to propose a flexible impeller pump.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A flexible impeller pump comprises a pump body, the pump body is connected with a liquid inlet and a liquid outlet, a flexible blade is installed in the pump body, an eccentric block is connected to the inner side wall of the pump body, the liquid inlet and the liquid outlet are symmetrically arranged about the eccentric block, and a filtering and cleaning mechanism is installed at the liquid inlet;

[0006] The filter cleaning mechanism comprises a filter screen, which is connected to a hole wall at a position of a liquid inlet away from one end of the pump body, and the hole wall at a position of the liquid inlet close to one end of the pump body is rotatably connected to a support shaft through two symmetrically arranged rotating parts, a fan blade is fixedly sleeved on the shaft wall of the support shaft, and a driving shaft is connected to the shaft wall of the support shaft through a transmission part, one end of the driving shaft is connected to the hole wall of the liquid inlet through a bearing seat, and a "cross"-shaped support frame is connected to the inner hole wall of the liquid inlet between the support shaft and the filter screen, a sealed bearing is inlaid at the center of the support frame, a rotating shaft is fixedly connected to the inner ring wall of the sealed bearing, and two ends of the rotating shaft pass through the sealed bearing and extend outward, an end of the rotating shaft close to the filter screen is fixedly connected to a long strip cleaning brush, and the bristles of the cleaning brush are arranged on the inner side of the filter screen, and an end of the rotating shaft away from the cleaning brush is connected to the driving shaft through a reciprocating driving part.

[0007] Preferably, a base is connected to the lower end of the pump body, and the pump body is connected to the base by bolts.

[0008] Preferably, the pump body and the eccentric block are an integrally formed structure.

[0009] Preferably, the rotating part includes an annular block with a T-shaped cross-section and an annular groove with a T-shaped cross-section, the annular block is fixedly connected to one end of the support shaft, the annular groove is opened on the hole wall of the liquid inlet corresponding to the position of the annular block, and the annular block is rotatably connected in the annular groove.

[0010] Preferably, the transmission member comprises a chain and two sprockets, the two sprockets are respectively sleeved on the shaft walls of the support shaft and the drive shaft, and the two sprockets are connected by chain transmission.

[0011] Preferably, the reciprocating drive member includes a driving bevel gear, which is fixedly connected to one end of the driving shaft close to the rotating shaft, and a driven bevel gear is symmetrically fixedly sleeved on the shaft wall of the rotating shaft about the driving bevel gear, a half-circle of teeth is provided on the annular side wall of the driving bevel gear, and a full-circle of teeth is provided on the annular side wall of the driven bevel gear, and the driving bevel gear is meshed with one of the driven bevel gears.

[0012] Preferably, the flexible blades are made of corrosion-resistant engineering plastics.

[0013] Preferably, the pump body is made of metal.

[0014] Preferably, a rolling groove is formed at one end of the annular block away from the supporting shaft, a rolling ball is arranged in the rolling groove, the ball passes through the notch of the rolling groove, and the ball is rollingly connected to the bottom of the annular groove.

[0015] Preferably, the ball diameter of the ball is larger than the groove diameter of the rolling groove.

[0016] Compared with the prior art, the present invention provides a flexible impeller pump having the following beneficial effects:

[0017] 1. The flexible impeller pump is provided with flexible blades and eccentric blocks. The flexible blades rotate to the eccentric blocks, are squeezed and bent to form a vacuum to suck the liquid from the liquid inlet into the pump body, and the flexible blades rotate to the eccentric pieces again, are squeezed and bent to discharge the liquid smoothly out of the pump body. By changing the direction of rotation of the flexible blades, the direction of the liquid inlet and outlet can be changed. The flexible blades rotate to transport the liquid from the liquid inlet to the liquid outlet for discharge, thereby improving the output effect of the flexible impeller pump on the liquid.

[0018] 2. The flexible impeller pump is provided with a filtering and cleaning mechanism. When the liquid enters the pump body through the liquid inlet, it is first filtered through the filter screen to block the impurities in the liquid on the outside of the filter screen. When the liquid moves in the liquid inlet, it drives the fan blades to rotate. After the fan blades are subjected to force, they drive the support shaft to rotate. The drive shaft is driven to rotate synchronously through the transmission of the transmission member. When the drive shaft rotates, the reciprocating drive member drives the cleaning brush to reciprocate on the filter screen with a stroke of half a circle, and the filter screen is cleaned from the inside of the filter screen to prevent the filter screen from being blocked. The cleaning brush reciprocates to avoid the cleaning brush rotating to one side so that the bristles are not irreversibly bent, thereby ensuring the cleaning effect of the filter screen.

[0019] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The present invention improves the output effect of the flexible impeller pump on the liquid. At the same time, the cleaning brush reciprocates on the filter screen with a stroke of half a circle, cleaning the filter screen from the inside of the filter screen to prevent the filter screen from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of a flexible impeller pump proposed by the present invention;

[0021] Figure 2 A schematic structural diagram of the relationship between a pump body and flexible blades of a flexible impeller pump proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the interior of a liquid inlet of a flexible impeller pump proposed by the present invention;

[0023] Figure 4 for Figure 3 Enlarged view of part A.

[0024] In the figure: 1 pump body, 2 liquid inlet, 3 liquid outlet, 4 flexible blades, 5 eccentric block, 6 filter screen, 7 support shaft, 8 fan blades, 9 drive shaft, 10 bearing seat, 11 support frame, 12 sealed bearing, 13 rotating shaft, 14 cleaning brush, 15 base, 16 annular block, 17 annular groove, 18 chain, 19 sprocket, 20 driving bevel gear, 21 driven bevel gear, 22 rolling groove, 23 ball. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] Reference Figure 1-4 A flexible impeller pump comprises a pump body 1, the pump body 1 is connected with a liquid inlet 2 and a liquid outlet 3, a flexible blade 4 is installed in the pump body 1, an eccentric block 5 is connected to the inner side wall of the pump body 1, the liquid inlet 2 and the liquid outlet 3 are symmetrically arranged about the eccentric block 5, the flexible blade 4 rotates to the eccentric block 5, is squeezed and bent to form a vacuum to suck the liquid from the liquid inlet 2 into the pump body 1, the flexible blade 4 rotates to the eccentric piece 5 again, is squeezed and bent to discharge the liquid smoothly from the pump body 1, the direction of the liquid inlet and outlet can be changed by changing the rotation direction of the flexible blade 4, the flexible blade 4 rotates to transport the liquid from the liquid inlet 2 to the liquid outlet 3 for discharge, thereby improving the output effect of the flexible impeller pump on the liquid, and the liquid inlet 2 is installed with a filtering and cleaning mechanism;

[0028] The filtering and cleaning mechanism includes a filter screen 6, which is connected to the hole wall of the liquid inlet 2 away from one end of the pump body 1. The hole wall of the liquid inlet 2 close to one end of the pump body 1 is rotatably connected to a support shaft 7 through two symmetrically arranged rotating parts. A fan blade 8 is fixedly sleeved on the shaft wall of the support shaft 7. A driving shaft 9 is connected to the shaft wall of the support shaft 7 through a transmission member. One end of the driving shaft 9 is connected to the hole wall of the liquid inlet 2 through a bearing seat 10. A "cross"-shaped support frame 11 is connected to the inner hole wall of the liquid inlet 2 between the support shaft 7 and the filter screen 6. A sealed bearing 12 is inlaid at the center of the support frame 11. A rotating shaft 13 is fixedly connected to the inner ring wall of the sealed bearing 12, and both ends of the rotating shaft 13 pass through the sealed bearing 12 and extend outward. An end of the rotating shaft 13 close to the filter screen 6 is fixedly connected to a long strip cleaning brush 14, and the bristles of the cleaning brush 14 are arranged On the inner side of the filter 6, one end of the rotating shaft 13 away from the cleaning brush 14 is connected to the driving shaft 9 through a reciprocating drive member. When the liquid enters the pump body 1 through the liquid inlet 2, it is first filtered through the filter 6 to block the impurities in the liquid on the outside of the filter 6. When the liquid moves in the liquid inlet 2, it pushes the fan blades 8 to rotate. After the fan blades 8 are subjected to force, they drive the support shaft 7 to rotate, and the driving shaft 9 is rotated synchronously through the transmission of the transmission member. When the driving shaft 9 rotates, the reciprocating drive member drives the cleaning brush 14 to reciprocate on the filter 6 with a half-turn as a stroke, and cleans the filter 6 from the inside of the filter 6 to prevent the filter 6 from being blocked. The cleaning brush 14 reciprocates to avoid the cleaning brush 14 rotating to one side so that the bristles are not irreversibly bent, thereby ensuring the cleaning effect of the filter 6.

[0029] The lower end of the pump body 1 is connected to a base 15 , and the pump body 1 is connected to the base 15 via bolts.

[0030] The pump body 1 and the eccentric block 5 are an integrally formed structure.

[0031] The rotating part includes an annular block 16 with a T-shaped cross-section and an annular groove 17 with a T-shaped cross-section. The annular block 16 is fixedly connected to one end of the support shaft 7. The annular groove 17 is opened on the hole wall of the liquid inlet 2 corresponding to the position of the annular block 16, and the annular block 16 is rotatably connected in the annular groove 17, so that the support shaft 7 and the liquid inlet 2 can remain connected and can also rotate relative to each other.

[0032] The transmission parts include a chain 18 and two sprockets 19. The two sprockets 19 are respectively sleeved on the shaft walls of the support shaft 7 and the drive shaft 9, and the two sprockets 19 are connected by the chain 18. When the support shaft 7 rotates, its own sprocket 19 is driven to rotate, and the other sprocket 19 is rotated through the transmission of the chain 18, so that the support shaft 7 and the drive shaft 9 rotate at the same speed and in the same direction.

[0033] The reciprocating drive member includes a driving bevel gear 20, which is fixedly connected to one end of the driving shaft 9 close to the rotating shaft 13. A driven bevel gear 21 is symmetrically fixedly sleeved on the shaft wall of the rotating shaft 13 about the driving bevel gear 20. A half-circle of teeth is provided on the annular side wall of the driving bevel gear 20, and a full-circle of teeth is provided on the annular side wall of the driven bevel gear 21. The driving bevel gear 20 is meshed with one of the driven bevel gears 21. The driving shaft 9 drives the driving bevel gear 20 to rotate. The driving bevel gear 20 rotates a full circle, and the two driven bevel gears 21 are respectively meshed with it for half a circle. When the two driven bevel gears 21 are meshed with the driving bevel gear 20, the rotating shaft 13 is driven to rotate in the corresponding direction, so that the rotating shaft 13 reciprocates with a stroke of half a circle.

[0034] The flexible blades 4 are made of corrosion-resistant engineering plastics.

[0035] The pump body 1 is made of metal, which increases the service life of the pump body 1.

[0036] A rolling groove 22 is provided at one end of the annular block 16 away from the supporting shaft 7, and a rolling ball 23 is provided in the rolling groove 22. The ball 23 passes through the notch of the rolling groove 22, and the ball 23 is rollingly connected to the bottom of the annular groove 17. The annular block 16 in the annular groove 17 is supported by the ball 23. When the annular block 16 rotates in the annular groove 17, the friction resistance between the annular block 16 and the annular groove 17 is reduced.

[0037] The ball diameter of the ball 23 is larger than the groove diameter of the groove opening of the rolling groove 22 , so as to prevent the ball 23 from slipping out of the rolling groove 22 .

[0038] In the present invention, the flexible blade 4 rotates to the eccentric block 5, is squeezed and bent to form a vacuum to suck the liquid from the liquid inlet 2 to the pump body 1, and the flexible blade 4 rotates to the eccentric piece 5 again, is squeezed and bent to discharge the liquid smoothly from the pump body 1. By changing the rotation direction of the flexible blade 4, the direction of the liquid inlet and outlet can be changed. The flexible blade 4 rotates to transport the liquid from the liquid inlet 2 to the liquid outlet 3 for discharge, thereby improving the output effect of the flexible impeller pump on the liquid; when the liquid enters the pump body 1 through the liquid inlet 2, it is first filtered by the filter screen 6 to block the impurities in the liquid on the outside of the filter screen 6. When the liquid moves in the liquid inlet 2, it pushes the fan blades 8 to rotate. After being subjected to force, the fan blades 8 drive the support shaft 7 to rotate, and the drive shaft 9 is synchronously rotated through the transmission of the transmission member. When the drive shaft 9 rotates, the reciprocating drive member is used to drive the cleaning brush 14 to reciprocate on the filter screen 6 with a stroke of half a circle, and the filter screen 6 is cleaned from the inside of the filter screen 6 to prevent the filter screen 6 from being blocked. The cleaning brush 14 reciprocates to avoid the cleaning brush 14 rotating to one side so that the bristles are not irreversibly bent, thereby ensuring the cleaning effect of the filter screen 6.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flexible impeller pump, comprising a pump body (1), characterized in that: The pump body (1) is connected to a liquid inlet (2) and a liquid outlet (3), a flexible blade (4) is installed in the pump body (1), an eccentric block (5) is connected to the inner wall of the pump body (1), the liquid inlet (2) and the liquid outlet (3) are symmetrically arranged with respect to the eccentric block (5), and a filtering and cleaning mechanism is installed at the liquid inlet (2); The filtering and cleaning mechanism comprises a filter screen (6), the filter screen (6) being connected to a hole wall at a position of the liquid inlet (2) away from one end of the pump body (1), a support shaft (7) being rotatably connected to the hole wall at a position of the liquid inlet (2) close to one end of the pump body (1) via two symmetrically arranged rotating members, a fan blade (8) being fixedly sleeved on the shaft wall of the support shaft (7), a drive shaft (9) being connected to the shaft wall of the support shaft (7) via a transmission member, one end of the drive shaft (9) being connected to the hole wall of the liquid inlet (2) via a bearing seat (10), and the liquid inlet (2) located between the support shaft (7) and the filter screen (6) 2) A "cross"-shaped support frame (11) is connected to the inner hole wall, a sealed bearing (12) is embedded in the center of the support frame (11), a rotating shaft (13) is fixedly connected to the inner ring wall of the sealed bearing (12), and both ends of the rotating shaft (13) pass through the sealed bearing (12) and extend outward, an end of the rotating shaft (13) close to the filter screen (6) is fixedly connected to a long strip cleaning brush (14), and the bristles of the cleaning brush (14) are arranged on the inner side of the filter screen (6), and an end of the rotating shaft (13) away from the cleaning brush (14) is connected to the driving shaft (9) through a reciprocating driving member; The lower end of the pump body (1) is connected to a base (15), and the pump body (1) is connected to the base (15) via bolts; The rotating member comprises an annular block (16) with a T-shaped cross section and an annular groove (17) with a T-shaped cross section, the annular block (16) is fixedly connected to one end of the support shaft (7), the annular groove (17) is formed on the hole wall of the liquid inlet (2) corresponding to the position of the annular block (16), and the annular block (16) is rotatably connected in the annular groove (17); A rolling groove (22) is formed at one end of the annular block (16) away from the supporting shaft (7), a rolling ball (23) is arranged in the rolling groove (22), the ball (23) passes through the notch of the rolling groove (22), and the ball (23) is rollingly connected to the bottom of the annular groove (17); The reciprocating drive member comprises a driving bevel gear (20), the driving bevel gear (20) being fixedly connected to one end of the driving shaft (9) close to the rotating shaft (13), a driven bevel gear (21) being symmetrically fixedly sleeved on the shaft wall of the rotating shaft (13) about the driving bevel gear (20), a half-circle of teeth being arranged on the annular side wall of the driving bevel gear (20), a full-circle of teeth being arranged on the annular side wall of the driven bevel gear (21), and the driving bevel gear (20) being meshed with one of the driven bevel gears (21).

2. A flexible impeller pump according to claim 1, characterized in that: The pump body (1) and the eccentric block (5) are an integrally formed structure.

3. A flexible impeller pump according to claim 1, characterized in that: The transmission member comprises a chain (18) and two sprocket wheels (19); the two sprocket wheels (19) are respectively sleeved on the shaft walls of the support shaft (7) and the drive shaft (9), and the two sprocket wheels (19) are connected by transmission via the chain (18).

4. A flexible impeller pump according to claim 1, characterized in that: The flexible blades (4) are made of corrosion-resistant engineering plastics.

5. A flexible impeller pump according to claim 1, characterized in that: The pump body (1) is made of metal.

6. A flexible impeller pump according to claim 1, characterized in that: The ball diameter of the rolling ball (23) is larger than the groove diameter of the groove opening of the rolling groove (22).

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