Efficient energy-saving drainage pump for hydraulic engineering

Abstract

This invention relates to drainage pump technology, addressing the problems of drainage pumps being difficult to fix in place, prone to displacement or tipping, and easily blocked by impurities and other foreign objects at the inlet. Specifically, it is a high-efficiency and energy-saving drainage pump for water conservancy projects. In this invention, when the drainage pump is placed on naturally formed ground such as soil or rocks, it is fixed to the ground by passing a fixing pin through a pin hole. When the drainage pump is placed on artificially constructed ground such as concrete, it is inconvenient to damage the ground with fixing pins. Therefore, an extended bracket, side bracket, and stabilizer are used to support the drainage pump and prevent displacement or tipping. When the drainage pump is draining water, water enters from the bottom inlet of the axial flow pump. Impurities are intercepted by the debris screen and filter screen. At the same time, water inside the volute is sprayed out from the outlet, forming a vortex on the outside of the suction bracket under the action of the guide plate, which washes away impurities at the outer end of the debris screen and filter screen, ensuring the water suction effect of the axial flow pump and reducing suction resistance.

Description

Technical Field

[0001] This invention relates to drainage pump technology, specifically a high-efficiency and energy-saving drainage pump for water conservancy projects. Background Technology

[0002] Drainage pumps generally use low-head, high-flow drainage pump bodies. During the construction of water conservancy projects, foundation pits are built in advance to collect rainwater and prevent waterlogging. During the plum rain season, the river water rises, and the capacity of the foundation pit is limited. In order to prevent the foundation pit from overflowing, drainage pumps are usually used to treat the accumulated water.

[0003] Currently, existing drainage pumps still have shortcomings in use. Most drainage pumps are horizontal, with a thick base to ensure stability. However, this structure tends to increase the size of the pump, making it unsuitable for smaller pits. At the same time, the pump's own weight increases significantly, causing great inconvenience for transportation, installation, and maintenance. While vertical drainage pumps are smaller and lighter, they are prone to swaying with the water flow during pumping, causing the pump's position to change or tip over. In addition, the bottom inlet of the pump is easily blocked by impurities and sludge, resulting in a reduction in the pump's flow rate.

[0004] To address the aforementioned technical problems, this application proposes a solution. Summary of the Invention

[0005] In this invention, when placing the drainage pump on naturally formed ground such as soil or rocks, the pump can be secured by passing a fixing pin through a pin hole and nailing it to the ground. However, when the pump is placed on artificially constructed concrete or similar ground, where it's inconvenient to damage the ground with fixing pins, an extended support, side support, and stabilizer are used to support the pump and prevent it from shifting or tipping over. During drainage, water enters from the bottom inlet of the axial flow pump, and impurities are intercepted by the debris screen and filter. Simultaneously, water inside the volute is ejected from the outlet, forming a vortex outside the suction support under the action of the guide plate. The impurities at the outer ends of the debris-blocking and filter screens are flushed away to ensure the water intake effect of the axial flow pump and reduce water intake resistance. By installing elastic telescopic lifting seats under the stabilizer and side supports, the stabilizer and side supports, whose bottom surfaces are not on the same plane, can contact the ground to ensure the support effect. At the same time, when the drainage pump faces a large water flow impact, the elastically set lifting seats can buffer the stabilizer and side supports to prevent them from breaking. This solves the problems of drainage pumps being difficult to fix in place and prone to displacement or tipping, as well as the inlet being easily blocked by impurities and other foreign objects. Therefore, a high-efficiency and energy-saving drainage pump for water conservancy projects is proposed.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A high-efficiency and energy-saving drainage pump for water conservancy projects includes a base plate, an axial flow pump fixedly mounted on the top of the base plate, a water outlet fixedly mounted on the top of the axial flow pump, a coupling rotatably connected to the upper surface of the base plate, the coupling penetrating the base plate, the top of the coupling fixedly connected to the output end of a drive motor, the drive motor fixedly mounted on the side wall of the water outlet, a gearbox sleeved on the outer wall of the output shaft of the drive motor, the part of the output shaft of the drive motor penetrating the gearbox and located below the gearbox being connected to the coupling, and the drive motor driving the axial flow pump to work through the gearbox;

[0008] The bottom of the axial flow pump penetrates the base plate. Both the coupling and the bottom of the axial flow pump are located on the lower surface of the base plate. A water suction bracket is fixedly installed on the bottom edge of the axial flow pump. The water suction brackets are arranged at equal intervals, and multiple sets of dirt-blocking nets are fixedly installed between the intervals of the water suction brackets. A filter screen is fixedly installed at the opening end of the axial flow pump. A volute is sleeved on the bottom end of the coupling, and the bottom end of the coupling is located inside the volute. A drive fan is fixedly installed on the part of the coupling inside the volute. Two sets of openings are opened on the outer wall of the volute. A water inlet filter screen is fixedly installed on the outer wall of one set of openings, and multiple sets of guide plates are arranged outside the other opening. The guide plates are fixedly installed on the bottom surface of the base plate. The guide plates have an arc-shaped structure and are guided from the opening of the volute to the water suction bracket. The guide plates gradually converge towards one side of the volute and gradually diffuse towards the water suction bracket. A base bracket is installed at the corner of the lower surface of the base plate, and a stabilizing mechanism is rotatably connected at the four corners of the side wall of the base plate.

[0009] In a preferred embodiment of the present invention, the stabilizing mechanism includes a connecting shaft, a rotating wheel, a support frame, a reinforcing rib, an extended bracket, a stabilizing frame, and a side bracket. The connecting shaft is rotatably connected inside the substrate, and both ends of the connecting shaft protrude. The rotating wheel is rotatably connected to both ends of the connecting shaft. One end of the support frame is fixedly connected to the rotating wheel. The support frame is hollow inside. The extended bracket is slidably connected inside the support frame. A groove is formed on the side wall of the extended bracket. The side bracket is rotatably connected to the groove on the side wall of the extended bracket. A groove is also formed on the side wall of the side bracket. The stabilizing frame is rotatably connected to the groove on the side wall of the side bracket. Two sets of stabilizing mechanisms are symmetrically arranged at each corner of the substrate.

[0010] In a preferred embodiment of the present invention, a cavity is formed on the lower surface of the side bracket, and a first return spring is fixedly connected in the cavity. A first lifting seat is fixedly installed at the bottom end of the first return spring. The height of the first lifting seat is less than the height of the cavity. A cavity is formed on the lower surface of the stabilizer, and a second lifting seat is elastically connected in the cavity through a second return spring. The height of the second lifting seat is also less than the height of the cavity.

[0011] In a preferred embodiment of the present invention, a reinforcing rib is fixedly installed between two adjacent sets of support frames located at the same corner. The side of the reinforcing rib facing the substrate is an arc surface. A positioning frame is fixedly installed on the upper surface of the corner of the substrate. A slot is opened on the upper surface of the positioning frame. When the stabilizing mechanism is retracted, the reinforcing rib is engaged in the slot on the positioning frame.

[0012] In a preferred embodiment of the present invention, the extended bracket has a pin hole in the vertical direction at its outer end, and a fixing pin is inserted into the pin hole.

[0013] In a preferred embodiment of the present invention, the outlet ends of the two sets of guide plates located on both sides are tangent to the outer circumference of the water absorption bracket. The set of guide plates closest to the volute is concentric with the volute and extends from the outlet end of the volute to the end of the water inlet filter on the outside of the volute.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In this invention, by adding a stabilizing mechanism around the base plate of the drainage pump, the drainage pump is prevented from tipping over. When the drainage pump is placed on native soil or rock, the support frame is opened, and a fixing pin is driven into one end of the extended bracket inside the support frame to fix the drainage pump. When the drainage pump is placed on artificially constructed concrete or other surfaces that are difficult to damage, the extended bracket is pulled out, and then the stabilizing frame and side bracket on the side wall of the extended bracket pop out to provide auxiliary stability to the base plate, preventing the drainage pump from shifting or tipping over and ensuring the effectiveness of the drainage pump.

[0016] 2. In this invention, a coupling is led out from the output shaft of the drive motor of the water pump, so that the drive motor drives the drive fan located below the base plate to rotate. The drive fan pushes the water flow, and with the help of the guide plate, the water flow of the drive fan forms a vortex at the inlet of the axial flow pump. This causes impurities at the inlet to be carried away by the water flow, preventing impurities from accumulating on the screen and filter screen, preventing the inlet from being blocked, and ensuring the flow rate of the drainage pump.

[0017] 3. In this invention, by setting an elastically telescopic lifting seat below the stabilizer and the side support, the stabilizer and the side support, whose bottom surfaces are not on the same plane, can both contact the ground to ensure the support effect. At the same time, when the drainage pump faces a large water flow impact, the elastically set lifting seat can buffer the stabilizer and the side support to prevent the stabilizer and the side support from breaking. Attached Figure Description

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the support frame structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the guide plate structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the drive fan structure of the present invention;

[0023] Figure 5 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0024] Figure 6 This is a schematic diagram of the side support structure of the present invention;

[0025] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B;

[0026] Figure 8 This is a schematic diagram of the lifting seat structure of the present invention.

[0027] In the diagram: 1. Base plate; 2. Water outlet; 3. Drive motor; 4. Coupling; 5. Gearbox; 6. Stabilizing mechanism; 61. Connecting shaft; 62. Rotary wheel; 63. Support frame; 64. Reinforcing rib; 65. Extended bracket; 66. Stabilizing frame; 661. Second lifting seat; 662. Second return spring; 67. Side bracket; 671. First lifting seat; 672. First return spring; 68. Pin hole; 7. Positioning frame; 8. Filter screen; 9. Volute; 10. Water suction bracket; 11. Trash screen; 12. Guide plate; 13. Drive fan; 14. Inlet filter screen; 15. Axial flow pump; 16. Base bracket. Detailed Implementation

[0028] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1:

[0030] During the construction of water conservancy projects, it is often necessary to set up foundation pits in low-lying areas to collect rainwater from the construction surface and reduce the impact of rainwater on the project surface. Therefore, drainage pumps need to be installed in the foundation pits to drain the water and prevent it from overflowing. Since there are many low-lying pits during construction, drainage pumps need to be moved frequently. Horizontal drainage pumps are inconvenient to use due to their large size and weight, while existing lightweight vertical drainage pumps are prone to displacement and tipping during use, which is not conducive to their use.

[0031] Please see Figure 1 - Figure 4 As shown, a high-efficiency and energy-saving drainage pump for water conservancy projects includes a base plate 1. An axial flow pump 15 is fixedly installed on the top of the base plate 1. The axial flow pump 15 draws water from below and discharges it from the top, directly lifting the water upwards, reducing unnecessary work and thus reducing energy consumption. A water outlet 2 is fixedly installed at the top of the axial flow pump 15, and a flange is installed at the water outlet 2 for easy connection to a drainage pipe. A coupling 4 is also rotatably connected to the upper surface of the base plate 1, passing through the base plate 1. The top of the coupling 4 is fixedly connected to the output end of a drive motor 3. The drive motor 3 drives the coupling 4 to rotate. The coupling 4 transmits the power from the output end of the drive motor 3 to the bottom of the base plate 1. The drive motor 3 is fixedly installed on the side wall of the water outlet 2, fixing the position of the drive motor 3. A gearbox 5 is sleeved on the outer wall of the output shaft of the drive motor 3. The part of the output shaft of the drive motor 3 that passes through the gearbox 5 and is located below the gearbox 5 is connected to the coupling 4. Through the gearbox 5, the drive motor 3 drives the fan blades inside the axial flow pump 15 to work, thereby providing the driving capability for water and realizing the drive motor 3 driving the axial flow pump 15 to work.

[0032] The bottom of the axial flow pump 15 penetrates the base plate 1. Both the coupling 4 and the bottom of the axial flow pump 15 are located on the lower surface of the base plate 1. A water suction bracket 10 is fixedly installed on the bottom edge of the axial flow pump 15. The base plate 1 is supported by the water suction bracket 10 and the base bracket 16. The water suction brackets 10 are arranged at equal intervals. Multiple sets of dirt-blocking nets 11 are fixedly installed between the intervals of the water suction brackets 10 to prevent larger impurities from entering and covering the surface of the filter screen 8. A filter screen 8 is fixedly installed at the open end of the axial flow pump 15 to filter impurities and prevent impurities from entering the axial flow pump 15 and damaging the fan blades. A volute 9 is sleeved on the bottom end of the coupling 4. The bottom end of coupling 4 is located inside the volute 9. The portion of coupling 4 inside the volute 9 is fixedly fitted with a drive fan 13, which rotates via coupling 4. The outer wall of the volute 9 has two sets of openings: one set located on the side wall of the volute 9, and the other set located directly below the volute 9 and extended to the side wall of the volute 9 via a pipe. When the drive fan 13 rotates, one set of openings serves as a water inlet, and the other set serves as a water outlet. A water inlet filter 14 is fixedly installed on the outer wall of the inlet set to prevent impurities from entering the drive fan 13. The other set of openings... Multiple sets of guide plates 12 are installed outside the opening. The water sprayed from the outlet impacts the guide plates 12. The guide plates 12 are fixedly installed on the bottom surface of the base plate 1. The guide plates 12 have an arc-shaped structure and guide the water flow impacting the guide plates 12. The water flow is guided from the opening of the volute 9 to the suction bracket 10. When the water flows along the guide plates 12, it rushes towards the inlet of the axial flow pump 15, washing the debris screen 11 and the filter screen 8. The guide plates 12 gradually converge towards the volute 9 and gradually diffuse towards the suction bracket 10. The outlet ends of the two sets of guide plates 12 on both sides are connected to the suction bracket. The outer circumference of the frame 10 is tangent, causing the water flow guided by the guide plate 12 to move in an arc along the outer circumference of the water suction support 10, thereby forming a vortex that sweeps over the outside of the debris screen 11, thus cleaning the debris screen 11 on the water suction support 10. The set of guide plates 12 closest to the volute 9 is concentric with the volute 9 and extends from the outlet end of the volute 9 to one end of the inlet filter screen 14 on the outside of the volute 9, so that a part of the water flowing out of the outlet of the volute 9 flows back to the inlet of the volute 9 along the guide plate 12, cleaning the inlet filter screen 14 at the inlet of the volute 9 and preventing the inlet filter screen 14 from becoming clogged.

[0033] In this invention, when the drainage pump is running, the drive motor 3 drives the axial flow pump 15 through the gearbox 5. The axial flow pump 15 draws water from below the base plate 1. At the same time, the drive motor 3 drives the drive fan 13 to rotate through the coupling 4. The drive fan 13 rotates inside the volute 9, causing the two sets of openings of the volute 9 to discharge and infuse water. The water inlet of the volute 9 is located directly below the volute 9. The water inlet is extended to the side wall of the volute 9 through a pipe. When the water flows out of the volute 9, it impacts the guide plate 12 and forms a vortex through the guide plate 12. The vortex rotates outside the water inlet of the axial flow pump 15, thereby carrying away the impurities accumulated in the water inlet of the axial flow pump 15 through the water flow, preventing the water inlet of the axial flow pump 15 from being blocked and ensuring the normal flow rate of the axial flow pump 15.

[0034] Example 2:

[0035] Currently, vertical drainage pumps have the advantages of small size and light weight. Although they are easy to move, they are prone to swaying with the water flow during the pumping process, which may cause the drainage pump to change position or tip over. If the axial flow pump 15 moves away from the lowest point of the foundation pit or tip over, causing the inlet to tilt, the axial flow pump 15 will not be able to pump the water out completely, making it inconvenient to use.

[0036] Please see Figure 1 - Figure 4As shown, a base bracket 16 is installed at the corner of the lower surface of the substrate 1. A stabilizing mechanism 6 is rotatably connected to the four corners of the side wall of the substrate 1 to assist in supporting the substrate 1. The stabilizing mechanism 6 includes a connecting shaft 61, a rotating wheel 62, a support frame 63, a reinforcing rib 64, an extended bracket 65, a stabilizing frame 66, and a side bracket 67. The connecting shaft 61 is rotatably connected inside the substrate 1, and both ends of the connecting shaft 61 protrude. The rotating wheel 62 is rotatably connected to both ends of the connecting shaft 61. One end of the support frame 63 is fixedly connected to the rotating wheel 62. The support frame 63 rotates through the rotating wheel 62 and the connecting shaft 61. The support frame 63 is hollow inside. The extended bracket 65 is slidably connected inside the support frame 63. A damping layer is provided between the extended bracket 65 and the support frame 63 to increase the damping between the extended bracket 65 and the support frame 63. To prevent the extended support 65 from automatically retracting due to resistance, a pin hole 68 is vertically opened at the outer end of the extended support 65. A fixing pin is inserted through the pin hole 68. When the drainage pump is on naturally formed ground such as soil or rocks, the drainage pump can be fixed by passing the fixing pin through the pin hole 68 and nailing it to the ground. A groove is opened on the side wall of the extended support 65, and the side support 67 is rotatably connected to the groove on the side wall of the extended support 65. A torsion spring is installed at the connection between the side support 67 and the extended support 65, so that after the extended support 65 is pulled out from the support frame 63 until the side support 67 is completely exposed, the side support 67 will automatically spring open under the action of the torsion spring. A cavity is opened on the lower surface of the side support 67, and a first return spring 672 is fixedly connected in the cavity. The bottom of the first return spring 672 A first lifting seat 671 is fixedly installed at the end. When the side support 67 pops out, the first return spring 672 drives the first lifting seat 671 to pop out, thereby making the first lifting seat 671 contact the ground and improving the support stability. The height of the first lifting seat 671 is less than the height of the cavity, so that the first lifting seat 671 can be completely retracted into the cavity. The side wall of the side support 67 also has a groove. The stabilizer 66 is rotatably connected to the groove of the side wall of the side support 67. A torsion spring is also installed at the connection between the stabilizer 66 and the side support 67 through the pivot, so that the stabilizer 66 can pop out from the side support 67 through the torsion spring. The lower surface of the stabilizer 66 has a cavity. The second lifting seat 661 is elastically connected to the cavity through the second return spring 662. The height of the second lifting seat 661 is also less than the height of the cavity. When the stabilizing frame 66 pops out, the second lifting seat 661 pops out under the action of the second return spring 662 and contacts the ground for support. Two sets of stabilizing mechanisms 6 are symmetrically arranged at each corner of the base plate 1 to ensure the stability of the support. When the drainage pump is located on artificially constructed concrete or other ground, it is not convenient to damage the ground by fixing pins. Therefore, the extended bracket 65, side bracket 67 and stabilizing frame 66 play a role in assisting to support the drainage pump. A reinforcing rib 64 is fixedly installed between two adjacent sets of support frames 63 located at the same corner. The side of the reinforcing rib 64 facing the base plate 1 is an arc surface. A positioning frame 7 is fixedly installed on the upper surface of the corner of the base plate 1. The upper surface of the positioning frame 7 has a slot. When the stabilizing mechanism 6 is retracted, the reinforcing rib 64 is engaged in the slot on the positioning frame 7.This allows the support frame 63 to be vertically folded up during pump transport, reducing its size and facilitating handling.

[0037] Combining Embodiment 1 and Embodiment 2, the working principle is as follows:

[0038] In this invention, when placing the drainage pump, if the pump is on naturally formed ground such as soil or rocks, it can be fixed by passing a fixing pin through the pin hole 68 and nailing the fixing pin to the ground. However, if the pump is on artificially constructed concrete or similar ground, where it is inconvenient to damage the ground with the fixing pin, the extended support 65 is pulled out. The side support 67 on the side of the extended support 65 pops out, as does the stabilizing frame 66 on the side of the side support 67. The first lifting seat 671 and the second lifting seat 661 at the bottom of the side support 67 and the stabilizing frame 66 pop out and contact the ground. Thus, the extended support 65, the side support 67, and the stabilizing frame 66 provide auxiliary support for the drainage pump, preventing it from shifting or tipping over, ensuring its effectiveness. When the drainage pump is draining water, water enters from the bottom inlet of the axial flow pump 15, and impurities... Impurities are intercepted by the debris-blocking net 11 and the filter net 8. At the same time, the water flow in the volute 9 enters from the inlet and sprays out from the outlet. The sprayed water flow hits the guide plate 12, thereby forming a vortex on the outside of the suction bracket 10 under the action of the guide plate 12. This washes away the impurities at the outer ends of the debris-blocking net 11 and the filter net 8, ensuring the water suction effect of the axial flow pump 15, reducing water suction resistance, improving the efficiency of the drainage pump, and saving energy consumption. By setting an elastic telescopic lifting seat under the stabilizer 66 and the side bracket 67, the stabilizer 66 and the side bracket 67, whose bottom surfaces are not on the same plane, can both contact the ground to ensure the support effect. At the same time, when the drainage pump faces a large water flow impact, the elastically set lifting seat can buffer the stabilizer 66 and the side bracket 67 to prevent the stabilizer 66 and the side bracket 67 from breaking.

[0039] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-efficiency and energy-saving drainage pump for water conservancy projects, comprising a base plate (1), characterized in that, An axial flow pump (15) is fixedly installed on the top of the substrate (1). A water outlet (2) is fixedly installed on the top of the axial flow pump (15). A coupling (4) is rotatably connected to the upper surface of the substrate (1). The coupling (4) passes through the substrate (1). The top of the coupling (4) is fixedly connected to the output end of the drive motor (3). The drive motor (3) is fixedly installed on the side wall of the water outlet (2). A gearbox (5) is sleeved on the outer wall of the output shaft of the drive motor (3). The part of the output shaft of the drive motor (3) that passes through the gearbox (5) and is located below the gearbox (5) is connected to the coupling (4). The drive motor (3) drives the axial flow pump (15) to work through the gearbox (5). The bottom of the axial flow pump (15) penetrates the base plate (1). The bottom ends of the coupling (4) and the axial flow pump (15) are both located on the lower surface of the base plate (1). A water suction bracket (10) is fixedly installed on the bottom edge of the axial flow pump (15). The water suction brackets (10) are arranged at equal intervals. Multiple sets of dirt-blocking nets (11) are fixedly installed between the intervals of the water suction brackets (10). A filter screen (8) is fixedly installed at the open end of the axial flow pump (15). A volute (9) is sleeved on the bottom end of the coupling (4). The bottom end of the coupling (4) is located inside the volute (9). A drive fan is fixedly installed on the part of the coupling (4) located inside the volute (9). (13) The outer wall of the volute (9) has two sets of openings. One set of openings has an inlet filter screen (14) fixedly installed on the outer wall of the opening. The other opening has multiple sets of guide plates (12). The guide plates (12) are fixedly installed on the bottom surface of the substrate (1). The guide plates (12) have an arc-shaped structure and are guided from the opening of the volute (9) to the water absorption bracket (10). The guide plates (12) gradually converge towards the volute (9) and gradually diffuse towards the water absorption bracket (10). A base bracket (16) is installed at the corner of the lower surface of the substrate (1). A stabilizing mechanism (6) is rotatably connected at the four corners of the side wall of the substrate (1).

2. The high-efficiency and energy-saving drainage pump for water conservancy projects according to claim 1, characterized in that, The stabilizing mechanism (6) includes a connecting shaft (61), a rotating wheel (62), a support frame (63), a reinforcing rib (64), an extended bracket (65), a stabilizing frame (66), and a side bracket (67). The connecting shaft (61) is rotatably connected to the inside of the substrate (1), and both ends of the connecting shaft (61) protrude. The rotating wheel (62) is rotatably connected to both ends of the connecting shaft (61). One end of the support frame (63) is fixedly connected to the rotating wheel (62). The support frame (63) is hollow inside. The extended bracket (65) is slidably connected to the inside of the support frame (63). The side wall of the extended bracket (65) has a groove. The side bracket (67) is rotatably connected to the groove on the side wall of the extended bracket (65). The side wall of the side bracket (67) also has a groove. The stabilizing frame (66) is rotatably connected to the groove on the side wall of the side bracket (67). Two sets of stabilizing mechanisms (6) are symmetrically arranged at each corner of the substrate (1).

3. A high-efficiency and energy-saving drainage pump for water conservancy projects according to claim 2, characterized in that, The lower surface of the side bracket (67) has a cavity, in which a first return spring (672) is fixedly connected. A first lifting seat (671) is fixedly installed at the bottom end of the first return spring (672). The height of the first lifting seat (671) is less than the height of the cavity. The lower surface of the stabilizer (66) has a cavity, in which a second lifting seat (661) is elastically connected via a second return spring (662). The height of the second lifting seat (661) is also less than the height of the cavity.

4. A high-efficiency and energy-saving drainage pump for water conservancy projects according to claim 2, characterized in that, A reinforcing rib (64) is fixedly installed between two adjacent sets of support frames (63) located at the same corner. The side of the reinforcing rib (64) facing the base plate (1) is an arc surface. A positioning frame (7) is fixedly installed on the upper surface of the corner of the base plate (1). A slot is opened on the upper surface of the positioning frame (7). When the stabilizing mechanism (6) is retracted, the reinforcing rib (64) is engaged and connected in the slot on the positioning frame (7).

5. A high-efficiency and energy-saving drainage pump for water conservancy projects according to claim 2, characterized in that, The extended bracket (65) has a pin hole (68) in the vertical direction at its outer end, and a fixing pin is inserted into the pin hole (68).

6. A high-efficiency and energy-saving drainage pump for water conservancy projects according to claim 1, characterized in that, The outlet ends of the two sets of guide plates (12) located on both sides are tangent to the outer circumference of the water suction bracket (10). The set of guide plates (12) closest to the volute (9) is concentric with the volute (9) and extends from the outlet end of the volute (9) to one end of the water inlet filter (14) on the outside of the volute (9).

Images