Water pumping device for farmland irrigation

Abstract

The water pumping device comprises a motor shell, a driving mechanism arranged in the motor shell, a pump body and a water inlet mechanism, the pump body is connected to the bottom of the motor shell, the water inlet mechanism is arranged at the bottom of the pump body and communicated with the pump body, the bottom of the pump body is connected with a supporting cylinder, and the side wall of the pump body is communicated with a water outlet pipe. The utility model belongs to the technical field of water pumping devices, and particularly relates to a water pumping device for farm irrigation, which is stably placed, can adjust the height of a water inlet position, can filter a water inlet and can increase water outlet pressure.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pumping devices, and in particular relates to a water pumping device used for farmland irrigation. Background Art

[0002] When irrigating farmland, a submersible pump is generally used to extract water from a nearby ditch. The submersible pump is placed in the ditch. When pumping water for a long time, the water inlet at the bottom of the submersible pump is prone to blockage and needs to be cleaned from time to time. At the same time, if the pipeline connection at the outlet of the submersible pump is too long or too high, it is easy to cause insufficient pressure in the submersible pump and cannot meet the water supply during irrigation. Utility Model Content

[0003] The technical problem to be solved by the utility model is that when the bottom of the submersible pump is blocked and the pressure at the water outlet of the submersible pump is insufficient, the irrigation water supply cannot be met.

[0004] The technical solution adopted by the utility model is as follows: a water pumping device for farmland irrigation, comprising a motor housing, a driving mechanism arranged inside the motor housing, a pump body and a water inlet mechanism, the pump body being connected to the bottom of the motor housing, the water inlet mechanism being arranged at the bottom of the pump body and being connected to the pump body, the bottom of the pump body being connected to a support cylinder, and the side wall of the pump body being connected to a water outlet pipe;

[0005] The water inlet mechanism includes a protective shell and a water inlet pipe. The protective shell is arranged at the edge of the bottom wall of the pump body. One end of the water inlet pipe passes through the bottom wall of the pump body and is connected to the pump body. The other end of the water inlet pipe is connected to the side wall of the support cylinder.

[0006] Furthermore, a water inlet is provided on the bottom wall of the water inlet pipe parallel to the ground, and the water inlet pipes are arranged in a circular shape with equal intervals.

[0007] Furthermore, a support filter assembly is connected to the bottom of the support tube, and the support filter assembly includes a stud, a base and a filter screen. One end of the stud is threadedly connected to the support tube, and the base is arranged at the other end of the stud. The filter screen passes through the stud and is threadedly connected to the outer wall of the stud.

[0008] Preferably, the diameter of the filter screen is smaller than the diameter of the protective shell.

[0009] Furthermore, the driving mechanism includes a stator assembly, a rotor assembly and a transmission shaft, the stator assembly is arranged on the inner wall of the motor housing, one end of the transmission shaft is rotatably arranged in the motor housing through a bearing, the other end of the transmission shaft passes through the upper wall of the pump body and is rotatably arranged in the pump body through a bearing, one end of the transmission shaft extending into the pump body is connected to an impeller, and the rotor assembly is arranged on the outer wall of the transmission shaft.

[0010] Furthermore, a cable is connected to the upper end of the stator assembly, and the cable passes through the motor housing and extends to the upper part of the motor housing.

[0011] Furthermore, an outlet flange is provided at one end of the water outlet pipe away from the pump body.

[0012] Furthermore, a carrying strap is provided on the upper portion of the motor housing.

[0013] After adopting the above structure, the beneficial effects of the utility model are as follows: the utility model proposes a pumping device for farmland irrigation, which can be placed stably by supporting the filter assembly, and the height of the pumping position of the pumping device can be adjusted, and the water inlet of the pumping device can be filtered at the same time;

[0014] The impeller rotates and draws water from the protective shell through the water inlet pipes arranged in a circular pattern with equal spacing. The water inlet opening at the bottom of the water inlet pipe is relatively small. When pumping water, the filter provides a certain resistance to cooperate with the water inlet with a small water inlet to increase the water pressure on the pump body. The water outlet pipe is set to be closed to increase the spraying after the water enters the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 This is a schematic diagram of the overall structure of a water pumping device for farmland irrigation proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of a half-section structure of a pump body of a water pumping device for farmland irrigation proposed by the utility model;

[0018] Figure 3 The utility model is a schematic diagram of the internal structure of a water pumping device for farmland irrigation.

[0019] In the attached drawings: 1. motor housing, 2. pump body, 3. water inlet mechanism, 4. support cylinder, 5. water outlet pipe, 6. protective shell, 7. water inlet pipe, 8. water suction port, 9. support filter assembly, 10. stud, 11. base, 12. filter screen, 13. stator assembly, 14. rotor assembly, 15. transmission shaft, 16. impeller, 17. cable, 18. outlet flange, 19. carrying strap. DETAILED DESCRIPTION

[0020] like Figure 1 and Figure 3As shown, a pumping device for farmland irrigation includes a motor housing 1, a driving mechanism is arranged inside the motor housing 1, a pump body 2 and a water inlet mechanism 3, the pump body 2 is connected to the bottom of the motor housing 1, the water inlet mechanism 3 is arranged at the bottom of the pump body 2 and is connected to the pump body 2, a support cylinder 4 is connected to the bottom of the pump body 2, a water outlet pipe 5 is connected to the side wall of the pump body 2, the water inlet mechanism 3 includes a protective shell 6 and a water inlet pipe 7, the protective shell 6 is arranged at the edge of the bottom wall of the pump body 2, and one end of the water inlet pipe 7 passes through the bottom of the pump body 2. The wall is connected to the pump body 2, and the other end of the water inlet pipe 7 is connected to the side wall of the support tube 4. The impeller 16 inside the pump body 2 is driven to rotate by the driving mechanism. The water inlet pipe 7 intakes water into the pump body 2, promotes the flow of water inside the pump body 2, and realizes water supply. The water inlet pipe is parallel to the bottom wall of the ground and is provided with a water suction port 8. The water inlet pipes are arranged in a circular shape with equal intervals. When the water inlet pipe is intaken, the diameter of the bottom water suction port 8 is small. When the impeller 16 drives the water flow to move, the flow rate of multiple water inlets increases, and the water supply pressure is increased at the same time.

[0021] like Figure 2 and Figure 3 As shown, in order to reduce the blockage of the water inlet of the pumping device, the water entering the pump body 2 is filtered. At the same time, in order to reduce the dirt pumped in, the height of the water inlet of the pumping device can be adjusted. A support filter assembly 9 is connected to the bottom of the support tube 4. The support filter assembly 9 includes a stud 10, a base 11 and a filter screen 12. One end of the stud 10 is threadedly connected to the support tube 4, and the base 11 is arranged at the other end of the stud 10. The filter screen 12 penetrates the stud 10 and is threadedly connected to the outer wall of the stud 10. The base 11 is rotated to rotate the stud 10 in the support tube 4, and the distance between the base 11 and the protective shell 6 is adjusted so that the water inlet at the bottom of the pumping device is away from the sludge at the bottom of the ditch. The filter screen 12 is threadedly connected to the stud 10 and can be rotatably adjusted in the protective shell 6. The diameter of the filter screen 12 is smaller than the diameter of the protective shell 6, so that the filter screen 12 can rotate inside the protective shell 6 to prevent the base 11 from sinking into the sludge and the filter screen 12 from contacting the sludge.

[0022] like Figure 3 As shown, in order to realize the rotation of the impeller 16, the driving mechanism includes a stator assembly 13, a rotor assembly 14 and a transmission shaft 15. The stator assembly 13 is arranged on the inner wall of the motor housing 1, and one end of the transmission shaft 15 is rotatably arranged in the motor housing 1 through a bearing. The other end of the transmission shaft 15 passes through the upper wall of the pump body 2 and is rotatably arranged in the pump body 2 through a bearing. One end of the transmission shaft 15 extending into the pump body 2 is connected with the impeller 16, and the rotor assembly 14 is arranged on the outer wall of the transmission shaft 15. Through electromagnetism, the rotor assembly 14 and the transmission shaft 15 rotate in the stator assembly 13 to generate a rotating driving force, driving the impeller 16 to rotate in the pump body 2. The upper end of the stator assembly 13 is connected with a cable 17, and the cable 17 passes through the motor housing 1 and extends to the upper part of the motor housing 1, and is used to energize the stator assembly 13.

[0023] An outlet flange 18 is provided at one end of the water outlet pipe 5 away from the pump body 2 for connecting to a water outlet elbow, and a lifting belt 19 is provided on the upper part of the motor housing 1 to facilitate the lifting and movement of the water pumping device.

[0024] When in use, the operator observes the water level of the ditch, rotates the pumping device to place it in the ditch, rotates the base 11 to rotate the stud 10 in the support tube 4, adjusts the distance between the base 11 and the protective shell 6, supports the bottom of the pumping device, and makes the water inlet at the bottom of the pumping device away from the sludge at the bottom of the ditch. At the same time, the filter screen 12 is rotated to adjust the height of the filter screen 12 in the protective shell 6 to prevent the base 11 from sinking into the sludge and the filter screen 12 from contacting the sludge, thereby achieving filtration at the water inlet of the pumping device;

[0025] When the pumping device is placed in the ditch, the cable 17 is energized, the rotor assembly 14 and the drive shaft 15 rotate in the stator assembly 13 to generate a rotating driving force, driving the impeller 16 to rotate in the pump body 2, pushing the water flow inside the pump body 2, and at the same time, the water in the ditch is continuously pumped into the pump body 2 through the water inlet at the bottom of the water inlet pipe 7. When the water inlet pipe is filled with water, the diameter of the bottom water pumping port 8 is small. When the impeller 16 pushes the water flow to move, the flow rate of multiple water inlets increases, and the water pressure is increased at the same time, thereby achieving the pressurization of the water outlet of the pumping device.

[0026] Although the embodiments of the utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the attached claims and their equivalents. In short, if those skilled in the art are inspired by them and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the scope of protection of the utility model.

Claims

1. A pumping device for farmland irrigation, comprising a motor housing, wherein a driving mechanism is arranged inside the motor housing, and characterized in that: It also includes a pump body and a water inlet mechanism, wherein the pump body is connected to the bottom of the motor housing, the water inlet mechanism is arranged at the bottom of the pump body and communicates with the pump body, the bottom of the pump body is connected to a support cylinder, and the side wall of the pump body is connected to a water outlet pipe; The water inlet mechanism includes a protective shell and a water inlet pipe. The protective shell is arranged at the edge of the bottom wall of the pump body. One end of the water inlet pipe passes through the bottom wall of the pump body and is connected to the pump body. The other end of the water inlet pipe is connected to the side wall of the support cylinder.

2. A water pumping device for farmland irrigation according to claim 1, characterized in that: The bottom wall of the water inlet pipe parallel to the ground is provided with a water suction port, and the water inlet pipes are arranged in a circular shape with equal intervals.

3. A water pumping device for farmland irrigation according to claim 1, characterized in that: A support filter assembly is connected to the bottom of the support tube, and the support filter assembly includes a stud, a base and a filter screen. One end of the stud is threadedly connected to the support tube, and the base is arranged at the other end of the stud. The filter screen passes through the stud and is threadedly connected to the outer wall of the stud.

4. A water pumping device for farmland irrigation according to claim 3, characterized in that: The diameter of the filter screen is smaller than the diameter of the protective shell.

5. A water pumping device for farmland irrigation according to claim 1, characterized in that: The driving mechanism includes a stator assembly, a rotor assembly and a transmission shaft. The stator assembly is arranged on the inner wall of the motor housing. One end of the transmission shaft is rotatably arranged in the motor housing through a bearing. The other end of the transmission shaft penetrates the upper wall of the pump body and is rotatably arranged in the pump body through a bearing. One end of the transmission shaft extending into the pump body is connected to an impeller, and the rotor assembly is arranged on the outer wall of the transmission shaft.

6. A water pumping device for farmland irrigation according to claim 5, characterized in that: The upper end of the stator assembly is connected with a cable, and the cable passes through the motor housing and extends to the upper part of the motor housing.

7. A water pumping device for farmland irrigation according to claim 1, characterized in that: An outlet flange is arranged at one end of the water outlet pipe away from the pump body.

8. A water pumping device for farmland irrigation according to claim 1, characterized in that: A carrying strap is provided on the upper part of the motor housing.

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