Impeller pump with water absorption function

Abstract

The utility model discloses an impeller pump with a water absorption function, which comprises a pump head body, a bidirectional driving motor and a water absorption mechanism, a water inlet waterway, a water outlet waterway and a water pumping cavity are arranged in the pump head body, and a water pumping component positioned in the water pumping cavity is arranged on a waterway communicated with the water inlet waterway and the water outlet waterway. One end of an output shaft of the double-end driving motor provides power for the water pumping assembly to pump water to the water outlet waterway, and the other end provides power for the water sucking mechanism to suck water and convey water to the water inlet waterway. According to the impeller pump, water can be sucked and conveyed into the water pumping cavity under the condition that the liquid level is low and cannot enter the water pumping cavity, and normal water pumping operation of the impeller pump is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid conveying equipment, in particular to an impeller pump with a water absorption function. Background Art

[0002] Impeller pumps are commonly used fluid conveying equipment in modern life because of their good head. The impeller pump is used in an environment where its water inlet is lower than the source water level. Impeller pumps generally have a water inlet and a water outlet, a water pumping chamber inside, and an impeller inside the water pumping chamber. The output shaft of the drive motor drives the impeller to rotate, pumping the liquid from the water pumping chamber to the water outlet, and then transporting it to other equipment or pipelines.

[0003] If the source water level is lower than the water inlet end of the impeller pump, the liquid cannot enter the pumping chamber of the impeller pump, and the impeller pump cannot work well. Therefore, there is an urgent need for an impeller pump that can also have a water pumping function when the liquid level is low. Utility Model Content

[0004] The purpose of the utility model is to provide an impeller pump with a water suction function, which can suck water and transport it into the pump water cavity when the liquid level is lower than the water inlet end of the impeller pump, thereby ensuring that the impeller pump can perform normal water pumping operations.

[0005] In order to solve the above technical problems, the present invention adopts the following solutions:

[0006] An impeller pump with a water suction function includes a pump head body, in which an inlet waterway, an outlet waterway and a water pumping cavity are provided. A water channel connecting the inlet waterway and the outlet waterway is provided with a water pumping assembly located in the water pumping cavity. The pump also includes a bidirectional drive motor and a water suction mechanism. One end of the output shaft of the double-head drive motor provides power for the water pumping assembly to pump water to the outlet waterway, and the other end provides power for the water suction mechanism to absorb water and transport it to the inlet waterway.

[0007] In this solution, a bidirectional drive motor and a water suction mechanism are provided on the basis of the impeller pump. The two ends of the output shaft of the double-head drive motor provide power to the water pumping assembly and the water suction mechanism respectively. When the liquid level is low and the liquid cannot enter the water pumping chamber, the bidirectional drive motor works, and the water suction mechanism sucks the water in and transports it to the water inlet waterway, and then enters the water pumping chamber from the water inlet waterway. Finally, the water in the water pumping chamber is pumped to the water outlet waterway by the water pumping assembly. In this solution, when the liquid level is low and cannot enter the water pumping chamber, the water suction mechanism can suck and transport water into the water pumping chamber, ensuring that the impeller pump can perform normal water pumping operations.

[0008] Optionally, the water inlet waterway includes a first water inlet flow channel and a second water inlet flow channel connected to each other, the water outlet waterway includes a first water outlet waterway and a second water outlet waterway connected to the pump water chamber, the pump water chamber is connected to the second water inlet flow channel, and also includes a water control component for switching the first water outlet waterway and the second water outlet waterway to opposite on and off states under the action of the outlet water pressure.

[0009] Optionally, the first water outlet waterway includes a first water outlet channel and a first water outlet, and the second water outlet waterway includes a second water outlet channel and a second water outlet. Under the action of water pressure inside the first water outlet channel and the second water outlet channel, the water control component switches the waterway between the first water outlet channel and the first water outlet and the waterway between the second water outlet channel and the second water outlet to opposite on and off states.

[0010] Optionally, a connecting plate protruding outward is provided on one side of the pump head body, and a cover plate is sealedly connected to one side of the connecting plate. A first sealing ring is pressed between the connecting plate and the cover plate, and a water flow cavity connected to the first water outlet waterway and the second water outlet waterway is formed between the cover plate and the connecting plate. The water control component is located in the water flow cavity and is movably connected to the connecting plate. Under the action of water pressure inside the first water outlet channel and the second water outlet channel, the water control component rotates and switches the waterway between the first water outlet channel and the first water outlet and the waterway between the second water outlet channel and the second water outlet to opposite on and off states.

[0011] Optionally, the water control component includes a water sealing plate, a rotating shaft is provided on both sides of the middle part of the water sealing plate, and a first sealing gasket, a second sealing gasket, a third sealing gasket and a fourth sealing gasket corresponding to the first water outlet, the first water outlet channel, the second water outlet channel and the second water outlet are provided on the water sealing plate. The water sealing plate is in an obtuse V shape, and the rotating shaft is located in the rotating cavity between the connecting plate and the cover plate, and the rotating shaft and the cover plate and the connecting plate can rotate relative to each other.

[0012] Optionally, when the water pressure in the first water outlet channel is greater than the water pressure in the second water outlet channel, the water sealing plate rotates clockwise, the water path between the first water outlet channel and the first water outlet is connected, and the water path between the second water outlet channel and the second water outlet is blocked by the third sealing gasket and the fourth sealing gasket. When the water pressure in the first water outlet channel is less than the water pressure in the second water outlet channel, the water sealing plate rotates counterclockwise, the water path between the first water outlet and the first water outlet channel is blocked by the first sealing gasket and the second sealing gasket, and the water path between the second water outlet channel and the second water outlet is connected.

[0013] Optionally, a base is provided on the pump head body, and a water pumping chamber is formed between the base and the inner wall of the pump head body. The top surface of the base is connected to a bidirectional drive device, and the output shaft of the bidirectional drive motor passes downward through the base and is connected to the water pumping assembly. The output shaft rotates clockwise or counterclockwise to drive the water pumping assembly to rotate accordingly, and the water pumping assembly rotates clockwise or counterclockwise to pump water toward the first water outlet or the second outlet.

[0014] Optionally, the water pump assembly includes a rotating seat and blades. The rotating seat is connected to the lower end of the output shaft. The impeller is evenly distributed in a ring shape around the rotating seat. A second sealing ring located on the outside of the output shaft is embedded in the bottom surface of the base. A third sealing ring located below the rotating seat is sleeved on the output shaft. A groove is provided on the bottom surface of the base. A fourth sealing ring is embedded in the groove. The fourth sealing ring is pressed between the base and the pump head body.

[0015] Optionally, the water absorption mechanism includes a shell, an eccentric assembly, a partition, and a support plate. The support plate is connected to the outer shell of the bidirectional drive motor. The partition is arranged between the shell and the support plate. A water inlet, a water inlet chamber, a water outlet chamber, a third water outlet channel, and a fourth water outlet channel are provided in the shell. The fourth water outlet channel is connected to the first water inlet channel through a connecting head. The water inlet is connected to the water inlet chamber, and the water outlet chamber is connected to the third water outlet channel. A backflow prevention part is provided on the water path connecting the third water outlet channel and the fourth water outlet channel. A boosting diaphragm is provided between the partition and the support plate. A boosting chamber is formed between the boosting diaphragm and the partition. The lower end of the boosting diaphragm is connected to the eccentric assembly. A one-way water flow structure is provided on the water path connecting the boosting chamber and the water outlet chamber.

[0016] Optionally, a first sealing plate is provided at the intersection of the third water outlet channel and the fourth water outlet channel, the eccentric assembly includes a spring and a sealing plug, and a water sealing port connected to the third water outlet channel is formed in the shell. One end of the spring acts on the sealing plate, and the other end acts on the sealing plug. The sealing plug seals or connects the water channel at the water sealing port under the joint action of the water pressure of the fourth water outlet channel and the water pressure of the third water outlet channel.

[0017] The utility model has the beneficial effects:

[0018] 1. In the present invention, a bidirectional drive motor and a water suction mechanism are provided on the basis of an impeller pump. The two ends of the output shaft of the double-head drive motor provide power to the water pumping assembly and the water suction mechanism respectively. When the liquid level is low and the liquid cannot enter the water pumping chamber, the bidirectional drive motor works, and the water suction mechanism sucks in and transports the water to the water inlet waterway, and then enters the water pumping chamber from the water inlet waterway. Finally, the water in the water pumping chamber is pumped to the water outlet waterway by the water pumping assembly. This solution can ensure that when the liquid level is low and cannot enter the water pumping chamber, the water suction mechanism can suck in and transport water to the water pumping chamber, thereby ensuring that the impeller pump can perform normal water pumping operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 for Figure 1 Schematic diagram of the AA cross-section structure.

[0021] Figure markings: 01- pump head body, 02- second water inlet channel, 03- second sealing plate, 04- first water inlet channel, 05- fourth sealing ring, 06- housing, 07- output shaft, 08- bidirectional drive motor, 09- eccentric seat, 10- fifth sealing ring, 11- connector, 12- connecting rod, 13- push rack, 14- pressurization diaphragm, 15- support plate, 16- pressurization chamber, 17- water inlet one-way valve disc, 18- housing, 19- fourth water outlet channel, 20- water inlet hole, 21- first sealing plate, 22- spring, 23- sealing plug, 24- water sealing port, 25- fifth sealing gasket, 26- third water outlet channel Channel, 27-water outlet chamber, 28-water inlet, 29-water outlet hole, 30-water outlet one-way valve disc, 31-water inlet chamber, 32-partition, 33-second sealing ring, 34-base, 35-rotating shaft, 36-first sealing ring, 37-water passage chamber, 38-cover plate, 39-water sealing plate, 40-pump water chamber, 41-rotating seat, 42-second sealing ring, 43-first water outlet channel, 44-first water outlet, 45-second sealing gasket, 46-rotating chamber, 47-first sealing gasket, 48-second water outlet channel, 49-fourth sealing gasket, 50-third sealing gasket, 51-second water outlet, 52-connecting plate. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0023] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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.

[0024] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "opened," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0025] Example

[0026] An impeller pump with a water suction function includes a pump head body 01, in which an inlet waterway, an outlet waterway and a pumping chamber 40 are provided. The waterway where the inlet waterway and the outlet waterway are connected is provided with a pumping assembly located in the pumping chamber 40. The impeller pump also includes a bidirectional drive motor 08 and a water suction mechanism. One end of the output shaft 07 of the double-head drive motor provides power for the pumping assembly to pump water to the outlet waterway, and the other end provides power for the water suction mechanism to absorb water and transport it to the inlet waterway.

[0027] In this embodiment, Figure 1 As shown, on the basis of the impeller pump, a bidirectional drive motor 08 and a water suction mechanism are provided, and the two ends of the output shaft 07 of the double-head drive motor provide power for the water pumping assembly and the water suction mechanism respectively. When the liquid level is low and the liquid cannot enter the water pumping chamber 40, the bidirectional drive motor 08 works, and the water suction mechanism sucks the water in and transports it to the water inlet waterway, and then enters the water pumping chamber 40 from the water inlet waterway, and finally the water pumping assembly pumps the water in the water pumping chamber 40 to the water outlet waterway. This solution can ensure that when the liquid level is low and cannot enter the water pumping chamber 40, the water suction mechanism can suck and transport water into the water pumping chamber 40, thereby ensuring that the impeller pump can perform normal water pumping operations.

[0028] Furthermore, the water inlet waterway includes a first water inlet channel 04 and a second water inlet channel 02 that are connected to each other, and a second sealing plate 03 is provided at the intersection of the second water inlet channel 02 and the first water inlet channel 04. The water outlet waterway includes a first water outlet waterway and a second water outlet waterway that are connected to the pump water chamber 40, and the pump water chamber 40 is connected to the second water inlet channel 02. It also includes a water control component for switching the first water outlet waterway and the second water outlet waterway to opposite on and off states under the action of the outlet water pressure.

[0029] Furthermore, the first water outlet waterway includes a first water outlet channel 43 and a first water outlet 44, and the second water outlet waterway includes a second water outlet channel 48 and a second water outlet 51. Under the action of the internal water pressure of the first water outlet channel 43 and the second water outlet channel 48, the water control component switches the waterway between the first water outlet channel 43 and the first water outlet 44 and the waterway between the second water outlet channel 48 and the second water outlet 51 to opposite on and off states.

[0030] Furthermore, one side of the pump head body 01 is provided with a connecting plate 52 protruding outward, and one side of the connecting plate 52 is sealed with a cover plate 38, and a first sealing ring 36 is pressed between the connecting plate 52 and the cover plate 38. A water flow cavity 37 connected to the first water outlet waterway and the second water outlet waterway is formed between the cover plate 38 and the connecting plate 52. The water control component is located in the water flow cavity 37 and is movably connected to the connecting plate 52. Under the action of the internal water pressure of the first water outlet channel 43 and the second water outlet channel 48, the water control component rotates and switches the water path between the first water outlet channel 43 and the first water outlet 44 and the water path between the second water outlet channel 48 and the second water outlet 51 to opposite on and off states.

[0031] Furthermore, the water control component includes a water sealing plate 39, and a rotating shaft 35 is provided on both sides of the middle part of the water sealing plate 39. The water sealing plate 39 is provided with a first sealing gasket 47, a second sealing gasket 45, a third sealing gasket 50, and a fourth sealing gasket 49 corresponding to the first water outlet 44, the first water outlet channel 43, the second water outlet channel 48, and the second water outlet 51. The water sealing plate 39 is in an obtuse V shape, and the rotating shaft 35 is located in the rotating cavity 46 between the connecting plate 52 and the cover plate 38, and the rotating shaft 35 and the cover plate 38 and the connecting plate 52 can rotate relative to each other.

[0032] Specifically, a U-shaped connecting plate 52 is integrally formed on the right side of the pump head, and the connecting opening faces right. The cover plate 38 is adaptably connected to the connecting plate 52. The cover plate 38 has a door-shaped structure. The left end of the cover plate 38 is inserted into the U-shaped cavity of the connecting plate 52. A rotating cavity 46 adapted to the rotating shaft 35 can be formed between the left end of the cover plate 38 and the connecting plate 52. The rotating shaft 35 rotates in the rotating cavity 46. Since the water sealing plate 39 is in an obtuse V-shape, under the action of the water pressure inside the first water outlet channel 43 and the second water outlet channel 48, the water sealing plate 39 can rotate clockwise or counterclockwise with the rotating shaft 35 as the axis, thereby switching the first water outlet waterway and the second water outlet waterway to opposite water flow and water cut-off states.

[0033] Furthermore, when the water pressure in the first water outlet channel 43 is greater than the water pressure in the second water outlet channel 48, the water sealing plate 39 rotates clockwise, the water path between the first water outlet channel 43 and the first water outlet 44 is connected, and the water path between the second water outlet channel 48 and the second water outlet 51 is blocked by the third sealing gasket 50 and the fourth sealing gasket 49. When the water pressure in the first water outlet channel 43 is less than the water pressure in the second water outlet channel 48, the water sealing plate 39 rotates counterclockwise, the water path between the first water outlet 44 and the first water outlet channel 43 is blocked by the first sealing gasket 47 and the second sealing gasket 45, and the water path between the second water outlet channel 48 and the second water outlet 51 is connected.

[0034] Furthermore, a base 34 is provided on the pump head body 01, and a water pumping chamber 40 is formed between the base 34 and the inner wall of the pump head body 01. The top surface of the base 34 is connected to a bidirectional driving device, and the output shaft 07 of the bidirectional driving motor 08 passes downward through the base 34 and is connected to the water pumping assembly. The output shaft 07 rotates clockwise or counterclockwise to drive the water pumping assembly to rotate accordingly, and the water pumping assembly rotates clockwise or counterclockwise to pump water toward the first water outlet 44 or the second outlet.

[0035] Furthermore, the water pump assembly includes a rotating seat 41 and blades. The rotating seat 41 is connected to the lower end of the output shaft 07. The impeller is evenly distributed in a ring shape around the rotating seat 41. The bottom surface of the base 34 is embedded with a second sealing ring 33 located on the outside of the output shaft 07. The output shaft 07 is sleeved with a third sealing ring located below the rotating seat 41. The bottom surface of the base 34 is provided with a groove, and a fourth sealing ring 05 is embedded in the groove. The fourth sealing ring 05 is pressed between the base 34 and the pump head body 01.

[0036] Based on the existing impeller pump, improvements have been made to the impeller pump itself. When it is necessary to transport fluid to different waterways or equipment, multiple waterway switching valves need to be added to the outlet waterway of the impeller pump to achieve the delivery of fluid to different waterways or equipment. This requires the addition of additional valves, making the pipeline more complicated and the cost of use higher.

[0037] Specifically, if Figure 1 and Figure 2 As shown, water is sucked in by the water absorption mechanism and transported to the first water inlet channel 04, and then enters the pump water chamber 40 through the second water inlet channel 02. The first water outlet 44 and the second water outlet 51 are connected to different equipment or waterways. When the bidirectional drive motor 08 is working, when the output shaft 07 of the motor rotates clockwise, the rotating seat 41 drives the blades to rotate clockwise, and the water in the pump water chamber 40 is transported to the first water outlet channel 43. The amount of water in the first water outlet channel 43 is much greater than the amount of water in the second water outlet channel 48. At this time, the water pressure in the first water outlet channel 43 is greater than the water pressure in the second water outlet channel 48. The water pressure in the first water outlet channel 43 pushes the water sealing plate 39 to the right, sealing the water. The plate 39 rotates clockwise with the rotating shaft 35 as the axis, and the first sealing gasket 47 and the second sealing gasket 45 release the seal on the water outlet end of the first water outlet channel 43 and the water inlet end of the first water outlet 44. At this time, the water passage chamber 37 connects the water path between the first water outlet channel 43 and the first water outlet 44, and water is pumped from the first water outlet 44 to the designated equipment or water path. After the water sealing plate 39 rotates clockwise by a certain angle, the third sealing gasket 50 and the fourth sealing gasket 49 seal the water outlet end of the second water outlet channel 48 and the water inlet end of the second water outlet 51. In this way, the water sealing plate 39 switches the first water outlet water path to be connected and the second water outlet water path to be blocked under the action of the water pressure inside the first water outlet channel 43.

[0038] On the contrary, when the output shaft 07 of the motor rotates counterclockwise, the water in the pump water chamber 40 is transported to the second water outlet channel 48. The amount of water in the first water outlet channel 43 is much smaller than the amount of water in the second water outlet channel 48. At this time, the water pressure in the first water outlet channel 43 is smaller than the water pressure in the second water outlet channel 48. The water pressure in the second water outlet channel 48 pushes the sealing plate 39 to the right. The sealing plate 39 rotates counterclockwise around the rotating shaft 35. The third sealing gasket 50 and the fourth sealing gasket 49 release the seal on the water outlet end of the second water outlet channel 48 and the water inlet end of the second water outlet 51. At this time, the water chamber 37 is connected The waterway between the second water outlet channel 48 and the second water outlet 51 is connected. The first sealing gasket 47 and the second sealing gasket 45 seal the water inlet end of the first water outlet 44 and the water outlet end of the first water outlet channel 43. Water is pumped from the second water outlet 51 to the designated device or waterway. After the water sealing plate 39 rotates counterclockwise by a certain angle, the second sealing gasket 45 and the first sealing gasket 47 seal the water outlet end of the first water outlet channel 43 and the water inlet end of the first water outlet 44. In this way, the water sealing plate 39 switches the first water outlet waterway to be blocked and the second water outlet waterway to be connected under the action of the water pressure inside the second water outlet channel 48. When it is necessary to pump water to different devices or waterways, it is only necessary to change the water pressure in the first water outlet channel 43 and the second water outlet channel 48 by rotating the motor forward and reverse. The water outlet waterway can be switched by rotating the water sealing plate 39. There is no need to add an additional waterway switching valve on the water outlet waterway, which optimizes the waterway connection structure and reduces the cost of use.

[0039] Furthermore, the water absorption mechanism includes a shell 18, an eccentric assembly, a partition 32, and a support plate 15. The support plate 15 is connected to the housing 06 of the bidirectional drive motor 08. The partition 32 is arranged between the shell 18 and the support plate 15. The shell 18 is provided with a water inlet 28, a water inlet cavity 31, a water outlet cavity 27, a third water outlet channel 26, and a fourth water outlet channel 19. The fourth water outlet channel 19 is connected to the first water inlet channel 04 by a connector 11. The water inlet 28 is connected to the water inlet chamber 31, the water outlet chamber 27 is connected to the third water outlet channel 26, and the water path connecting the third water outlet channel 26 and the fourth water outlet is provided with a backflow prevention component. A boosting diaphragm 14 is provided between the partition 32 and the support plate 15, and a boosting chamber 16 is formed between the boosting diaphragm 14 and the partition 32. The lower end of the boosting diaphragm 14 is connected to the eccentric assembly, and a one-way water flow structure is provided on the water path connecting the boosting chamber 16 and the water outlet chamber 27.

[0040] Furthermore, a first sealing plate 21 is provided at the intersection of the third water outlet channel 26 and the fourth water outlet channel 19, the eccentric assembly includes a spring 22 and a sealing plug 23, and a water sealing port 24 connected to the third water outlet channel 26 is formed in the shell 18. One end of the spring 22 acts on the sealing plate, and the other end acts on the sealing plug 23. The sealing plug 23 seals or connects the water path at the water sealing port 24 under the joint action of the water pressure of the fourth water outlet channel 19 and the water pressure of the third water outlet channel 26.

[0041] Specifically, such as Figure 1 As shown, the water suction mechanism is actually a diaphragm pump, which provides things for the impeller pump and the diaphragm pump at the same time through the bidirectional drive motor 08. The diaphragm pump can have the effect of absorbing water. The fourth outlet channel 19 is connected to the first inlet channel 04 through the connector 11. A fifth sealing ring 10 is provided at the connection. A fifth sealing gasket 25 is pressed between the partition 32 and the inner wall of the shell 18. The partition 32 is provided with a water inlet hole 20 and a water outlet hole 29 connected to the boost chamber 16, and a water inlet one-way valve flap 17 is fixed on one side of the water inlet hole 20, and a water outlet one-way valve flap 30 is fixed on one side of the water outlet hole 29. The upper end of the output shaft 07 of the bidirectional drive motor 08 is connected to the eccentric assembly, which includes an eccentric seat 09, a connecting rod 12 and a push frame 13. The eccentric assembly is a conventional setting in existing diaphragm pumps. The eccentric seat 09 and the output shaft 07 upper end is connected, the lower end of the connecting rod 12 is eccentrically connected to the eccentric seat 09, the upper end is connected to the push frame 13, one end of the push frame 13 is connected to the lower end of the boosting diaphragm 14, the output shaft 07 rotates through the eccentric assembly to drive the boosting diaphragm 14 to reciprocate and squeeze the boosting chamber 16, thereby producing a water suction and water pumping effect, water is sucked into the water inlet chamber 31 from the water inlet 28, and then pushes open the water inlet one-way valve disc 17 to enter the boosting chamber 16 through the water inlet hole 20. When the volume of the boosting chamber 16 is reduced, the water in the boosting chamber 16 is pressed out from the water outlet hole 29 and pushes open the water outlet one-way valve disc 30 to enter the water outlet chamber 27, and enters the third water outlet channel 26. The water pressure pushes open the seal 23, the water channel at the water sealing port 24 is connected, the water enters the fourth water outlet channel 19 and is transported to the first water inlet channel 04, and finally the water pumping assembly completes the water pumping operation. If the water pressure in the fourth water outlet channel 19 is greater than the water pressure in the third water outlet channel 26, the sealing plug 23 seals the water sealing port 24 under the action of the spring 22 and the water pressure in the fourth water outlet channel 19 to prevent the water in the fourth water outlet channel 19 from flowing back.

[0042] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Based on the technical essence of the present invention and within the spirit and principles of the present invention, any simple modification, equivalent replacement and improvement of the above embodiment shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An impeller pump with a water suction function, comprising a pump head body (01), characterized in that: The pump head body (01) is provided with an inlet waterway, an outlet waterway and a water pumping cavity (40), and the waterway where the inlet waterway and the outlet waterway are connected is provided with a water pumping assembly located in the water pumping cavity (40), and also includes a bidirectional drive motor (08) and a water suction mechanism, one end of the output shaft (07) of the double-head drive motor is used to provide power for the water pumping assembly to pump water to the outlet waterway, and the other end is used to provide power for the water suction mechanism to absorb water and transport it to the inlet waterway.

2. The impeller pump with water absorption function according to claim 1, characterized in that: The water inlet waterway comprises a first water inlet flow channel (04) and a second water inlet flow channel (02) which are connected to each other, and the water outlet waterway comprises a first water outlet waterway and a second water outlet waterway which are connected to the water pump chamber (40), the water pump chamber (40) is connected to the second water inlet flow channel (02), and further comprises a water control component for switching the first water outlet waterway and the second water outlet waterway to opposite on and off states under the action of the outlet water pressure.

3. The impeller pump with water absorption function according to claim 2, characterized in that: The first water outlet waterway comprises a first water outlet flow channel (43) and a first water outlet (44), and the second water outlet waterway comprises a second water outlet flow channel (48) and a second water outlet (51). Under the action of the internal water pressure of the first water outlet flow channel (43) and the second water outlet flow channel (48), the water control component switches the waterway between the first water outlet flow channel (43) and the first water outlet (44) and the waterway between the second water outlet flow channel (48) and the second water outlet (51) to opposite on and off states.

4. The impeller pump with water absorption function according to claim 1, characterized in that: One side of the pump head body (01) is provided with a connecting plate (52) protruding outward, and one side of the connecting plate (52) is sealed and connected to a cover plate (38), and a first sealing ring (36) is pressed between the connecting plate (52) and the cover plate (38), and a water flow cavity (37) connected to the first water outlet waterway and the second water outlet waterway is formed between the cover plate (38) and the connecting plate (52). The water control component is located in the water flow cavity (37) and is movably connected to the connecting plate (52). Under the action of the internal water pressure of the first water outlet flow channel (43) and the second water outlet flow channel (48), the water control component rotates and switches the waterway between the first water outlet flow channel (43) and the first water outlet (44) and the waterway between the second water outlet flow channel (48) and the second water outlet (51) to be in opposite on and off states.

5. The impeller pump with water absorption function according to claim 2, characterized in that: The water control assembly comprises a water sealing plate (39), wherein rotating shafts (35) are provided on both sides of the middle of the water sealing plate (39), and a first sealing gasket (47), a second sealing gasket (45), a third sealing gasket (50), and a fourth sealing gasket (49) are provided on the water sealing plate (39) corresponding to the first water outlet (44), the first water outlet channel (43), the second water outlet channel (48), and the second water outlet (51). The water sealing plate (39) is in an obtuse V-shape, and the rotating shaft (35) is located in a rotating cavity (46) between the connecting plate (52) and the cover plate (38), and the rotating shaft (35), the cover plate (38), and the connecting plate (52) can rotate relative to each other.

6. The impeller pump with water absorption function according to claim 5, characterized in that: When the water pressure in the first water outlet channel (43) is greater than the water pressure in the second water outlet channel (48), the water sealing plate (39) rotates clockwise, the water path between the first water outlet channel (43) and the first water outlet (44) is connected, and the water path between the second water outlet channel (48) and the second water outlet (51) is blocked by the third sealing gasket (50) and the fourth sealing gasket (49); when the water pressure in the first water outlet channel (43) is less than the water pressure in the second water outlet channel (48), the water sealing plate (39) rotates counterclockwise, the water path between the first water outlet (44) and the first water outlet channel (43) is blocked by the first sealing gasket (47) and the second sealing gasket (45), and the water path between the second water outlet channel (48) and the second water outlet (51) is connected.

7. The impeller pump with water absorption function according to claim 1, characterized in that: The pump head body (01) is provided with a base (34), and a water pumping cavity (40) is formed between the base (34) and the inner wall of the pump head body (01). The top surface of the base (34) is connected to a bidirectional driving device, and the output shaft (07) of the bidirectional driving motor (08) passes downward through the base (34) and is connected to the water pumping assembly. The output shaft (07) rotates clockwise or counterclockwise to drive the water pumping assembly to rotate accordingly, and the water pumping assembly rotates clockwise or counterclockwise to pump water toward the first water outlet (44) or the second outlet.

8. The impeller pump with water absorption function according to claim 7, characterized in that: The water pump assembly comprises a rotating seat (41) and blades. The rotating seat (41) is connected to the lower end of the output shaft (07). The impellers are evenly distributed in an annular shape around the rotating seat (41). A second sealing ring (33) located outside the output shaft (07) is embedded in the bottom surface of the base (34). A third sealing ring located below the rotating seat (41) is sleeved on the output shaft (07). A groove is provided on the bottom surface of the base (34). A fourth sealing ring (05) is embedded in the groove. The fourth sealing ring (05) is pressed between the base (34) and the pump head body (01).

9. The impeller pump with water absorption function according to claim 1, characterized in that: The water absorbing mechanism comprises a housing (18), an eccentric assembly, a partition (32), and a support plate (15); the support plate (15) is connected to the housing (06) of the bidirectional drive motor (08); the partition (32) is arranged between the housing (18) and the support plate (15); a water inlet (28), a water inlet cavity (31), a water outlet cavity (27), a third water outlet flow channel (26), and a fourth water outlet flow channel (19) are provided in the housing (18); the fourth water outlet flow channel (19) and the first water inlet flow channel (04) are connected via a connector (1 1), the water inlet (28) is connected to the water inlet chamber (31), the water outlet chamber (27) is connected to the third water outlet channel (26), a backflow prevention member is provided on the water path where the third water outlet channel (26) is connected to the fourth water outlet, a boosting diaphragm (14) is provided between the partition (32) and the support plate (15), a boosting chamber (16) is formed between the boosting diaphragm (14) and the partition (32), the lower end of the boosting diaphragm (14) is connected to the eccentric assembly, and a one-way water flow structure is provided on the water path where the boosting chamber (16) is connected to the water outlet chamber (27).

10. The impeller pump with water absorption function according to claim 9, characterized in that: A first sealing plate (21) is provided at the intersection of the third water outlet channel (26) and the fourth water outlet channel (19); the eccentric assembly comprises a spring (22) and a sealing plug (23); a water sealing port (24) connected to the third water outlet channel (26) is formed in the housing (18); one end of the spring (22) acts on the sealing plate, and the other end acts on the sealing plug (23); the sealing plug (23) seals or connects the waterway at the water sealing port (24) under the combined action of the water pressure of the fourth water outlet channel (19) and the water pressure of the third water outlet channel (26).

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