High-efficiency self-priming pump

Abstract

This application relates to the technical field of self-priming pumps, and in particular to a high-efficiency self-priming pump, comprising a pump body, a motor, a coupling, a pump shaft, and a suction impeller. The motor is located at the top of the pump body, and its rotating shaft is connected to the pump shaft via the coupling. The pump shaft passes through the pump body and is connected to the suction impeller, which is located within the pump body. A water storage tank is installed on the side of the pump body, and a water pump inlet pipe is connected to the top of the water storage tank. An upper impeller inlet pipe and a lower impeller inlet pipe are connected to one side of the pump body, and an impeller outlet pipe is connected to the other side of the pump body. The end of the upper impeller inlet pipe away from the pump body is connected to and sealed to the top of the side of the water storage tank, and the end of the lower impeller inlet pipe away from the pump body is connected to and sealed to the bottom of the side of the water storage tank. The upper and lower impeller inlet pipes are located on the upper and lower sides of the pump body, respectively. The end of the impeller outlet pipe away from the pump body extends out of the pump body and is connected to the water pump outlet pipe. This application improves the water suction efficiency of the self-priming pump.

Description

Technical Field

[0001] This application relates to the technical field of self-priming pumps, and in particular to a high-efficiency self-priming pump. Background Technology

[0002] A self-priming pump is a type of pump that draws water up by itself during the startup phase and begins normal operation. Due to its special structure, a self-priming pump requires no pre-priming except for the initial start-up. Broadly speaking, there are many types of self-priming pumps, which can be classified according to their operating principle into self-priming centrifugal pumps, self-priming mixed-flow pumps, and self-priming vortex pumps, etc. In a narrower sense, when people mention self-priming pumps, they generally refer to self-priming centrifugal pumps. Self-priming centrifugal pumps are further classified according to their operating principle into gas-liquid mixing type, water ring impeller type, jet type, and other types.

[0003] Traditional self-priming centrifugal pumps are mostly horizontal in structure, and this type of centrifugal pump has been widely used in irrigation, petroleum, chemical, food, and environmental protection projects. However, horizontal self-priming pumps have a relatively complex structure, and are particularly unsuitable for harsh conditions such as media containing solid particles, resulting in low efficiency. Therefore, in recent years, a vertical self-priming pump has been developed in China to meet these specific application needs. Its structure is relatively simple, mainly consisting of a suction impeller, pump body, and pump shaft. The pump is connected to the electric motor via a coupling, and the axial force is borne by the radial thrust bearing of the vertical electric motor. Currently, these vertical self-priming pumps are mostly referred to as "vertical self-controlled self-priming pumps," and are widely used in industries such as steel, metallurgy, petrochemicals, and environmental protection, replacing various long-shaft submersible pumps, submersible pumps, and sewage pumps.

[0004] However, in related technologies, the inlet of a vertical self-priming pump is usually directly connected to the pump body through a pipe. Since the size of the pump body is limited, the size of the pipe directly connected to the pump body is also limited, and the amount of water that can be pumped into the pump body each time is limited, so the water suction efficiency of the self-priming pump needs to be improved. Summary of the Invention

[0005] In order to improve the water suction efficiency of a self-priming pump, this application provides a high-efficiency self-priming pump.

[0006] The high-efficiency self-priming pump provided in this application adopts the following technical solution:

[0007] A high-efficiency self-priming pump includes a pump body, a pump motor, a coupling, a pump shaft, and a suction impeller;

[0008] The motor is located at the top of the pump body, and the rotating shaft of the motor is connected to the pump shaft through a coupling. The pump shaft passes through the pump body and is connected to the suction impeller. The suction impeller is located inside the pump body.

[0009] A water storage tank is installed on the side of the pump body, and the top of the water storage tank is connected to the pump inlet pipe. One side of the pump body is connected to the upper impeller inlet pipe and the lower impeller inlet pipe, and the other side of the pump body is connected to the impeller outlet pipe.

[0010] The end of the upper impeller inlet pipe away from the pump body is connected to the top of the side of the water tank and is sealed. The end of the lower impeller inlet pipe away from the pump body is connected to the bottom of the side of the water tank and is sealed. The upper impeller inlet pipe and the lower impeller inlet pipe are located on the upper and lower sides of the pump body, respectively.

[0011] The end of the impeller outlet pipe that is away from the main body extends out of the pump body and is connected to the water pump outlet pipe.

[0012] By adopting the above technical solution, the size of the pump inlet pipe can be set according to actual conditions. Since the pump inlet pipe and the pump body are connected by a water storage tank, the size of the pump inlet pipe can be set to be relatively large without having to consider the size of the pump body. Furthermore, the water storage tank also serves to store water, holding a certain amount of water within it. This water is then drawn into the pump body through the upper and lower impeller inlets. Since the upper and lower impeller inlets are two separate pipes, simultaneous suction from both ends further improves suction efficiency. Even if the flow rate in the pump inlet pipe suddenly decreases, the water storage tank provides a buffer, ensuring that both the upper and lower impeller inlets are fully suctioned, resulting in a stable and less prone-to-decreasing suction volume, thus further improving suction efficiency.

[0013] Optionally, the internal chamber of the pump body on the side away from the pump outlet pipe is arranged with a reduced-expansion configuration along the direction close to the water storage tank.

[0014] By adopting the above technical solution, the water intake volume in the pump body can be increased, resulting in a better vortex effect and enhanced water suction.

[0015] Optionally, the impeller outlet pipe and the water pump outlet pipe are detachably connected via a flange.

[0016] By adopting the above technical solution, the impeller outlet pipe and the pump body can be transported independently and reassembled on site, making transportation and assembly convenient.

[0017] Optionally, the water storage tank includes a detachably connected left tank and a right tank, the upper impeller inlet pipe and the lower impeller inlet pipe are connected to the side of the right tank, and the water pump inlet pipe is connected to the top of the left tank;

[0018] The water storage tank is equipped with a detachable filter screen, which divides the interior of the water storage tank into two chambers, left and right.

[0019] By adopting the above technical solution, the filter screen divides the interior of the water storage tank into two chambers, left and right, allowing water to be filtered before entering the upper and lower impeller inlet pipes. This reduces the possibility of debris entering the pump body, thus helping to prevent malfunctions in the pump's internal structure. Since the left and right tanks are detachably connected, and the filter screen is removably installed inside the water storage tank, the tank can be opened periodically to clean the interior and the filter screen.

[0020] Optionally, a left mounting frame is fixedly connected to the side of the left housing near the right housing, and the left mounting frame is coaxially arranged with the opening of the left housing; a right mounting frame is fixedly connected to the side of the right housing near the left housing, and the right mounting frame is coaxially arranged with the opening of the right housing.

[0021] The left and right housings are hinged together on one side. A sealing frame is provided between the left and right mounting frames. The sealing frame is made of rubber material. A fixing component is provided on the water tank. The fixing component is used to fix the left and right mounting frames and press the sealing frame between the left and right mounting frames.

[0022] By adopting the above technical solution, when installing the filter screen, first rotate and open the left and right boxes, then install the filter screen inside the water storage tank, and at the same time install the sealing frame between the left and right mounting frames. Then rotate the left and right boxes to close them and fix them with the fixing components, thereby pressing the sealing frame between the left and right boxes. The sealing frame can improve the sealing performance of the connection between the left and right boxes and play a role in preventing water leakage.

[0023] Optionally, the filter screen includes a frame and a mesh fixedly connected to the frame. Each of the two vertical inner sidewalls of the sealing frame has an installation side groove that penetrates the top surface of the sealing frame. An installation bottom groove is provided on the inner bottom wall of the sealing frame, with both ends of the bottom groove communicating with the two side installation grooves respectively. The two sides of the frame pass through the two side installation grooves, and the bottom of the frame passes through the bottom installation groove.

[0024] A sealing side groove is provided on each of the two vertical outer side walls of the sealing frame. The sealing side groove penetrates the top surface of the sealing frame. The sealing side groove and the mounting side groove are offset in the thickness direction of the sealing frame. A sealing bottom groove is provided on the bottom wall of the sealing frame. The two ends of the sealing bottom groove are respectively connected to the sealing bottom grooves on both sides.

[0025] The two vertical inner sidewalls of the left mounting frame are provided with mating side grooves, which penetrate the top surface of the left mounting frame. The bottom wall of the inner side of the left mounting frame is provided with a mating bottom groove, and the two ends of the mating bottom groove are respectively connected to the mating side grooves on both sides.

[0026] The sealing frame is inserted into the left mounting frame from top to bottom, and the insertion and sealing are achieved through the sealing side groove, the mating side groove, the sealing bottom groove, and the mating bottom groove.

[0027] By adopting the above technical solution, when installing the filter screen, first insert the frame into the sealing frame outside the water storage tank so that the filter screen and the sealing frame form a whole. Then, insert the filter screen and the sealing frame into the mating side groove and mating bottom groove on the left mounting frame from top to bottom. Finally, rotate the left mounting frame and the right mounting frame to close them, press the sealing frame between the left mounting frame and the right mounting frame, and fix it with the fixing components.

[0028] Because the frame is rigid, the filter screen is first inserted into the sealing frame to form a whole, making it easy to insert the sealing frame into the left mounting frame. This also allows for the installation of the filter screen and provides a good seal. The structure of each part is simple and easy to install. Each part can be slotted during processing, making processing convenient. The sealing frame can also be limited by the side groove and bottom groove, preventing it from falling between the left and right mounting frames, ensuring stable installation.

[0029] Optionally, the fixing assembly includes a bottom fixing structure, a side fixing rod, a top fixing rod, and a top fixing bolt;

[0030] The bottom fixing structure is used to fix the bottom of the left mounting frame and the right mounting frame; the side fixing rods are set on opposite sides of the water tank, and side limiting grooves are opened on the side of the side fixing rods that are close to each other. The side limiting grooves pass through both ends of the side fixing rods, and the sides of the left mounting frame and the right mounting frame are simultaneously embedded in the side limiting grooves.

[0031] A top limiting groove is provided on the bottom surface of the top fixing rod. The tops of the left mounting frame and the right mounting frame are embedded in the top limiting groove. The top fixing bolt passes through the top fixing rod, the left mounting frame and the right mounting frame at the same time to achieve relative fixation of the top fixing rod, the left mounting frame and the right mounting frame.

[0032] By adopting the above technical solution, the bottom of the left and right mounting frames can be fixed by the bottom fixing structure, the sides of the left and right mounting frames can be fixed by the side fixing rods, and the top of the left and right mounting frames can be fixed by the top fixing bolts, thereby achieving the fixation of the four sides of the left and right mounting frames and improving the sealing performance of the sealing frame.

[0033] Optionally, a first dovetail strip is fixedly connected to the two opposite side walls of the side limiting groove, and a first dovetail groove is provided on the side of the side of the left mounting frame and the right mounting frame that are far apart from each other for the first dovetail strip to pass through; a second dovetail strip is fixedly connected to the two opposite side walls of the top limiting groove, and a second dovetail groove is provided on the top of the side of the left mounting frame and the right mounting frame that are far apart from each other for the second dovetail strip to pass through.

[0034] By adopting the above technical solution, when fixing the left and right mounting frames, the bottom is first initially fixed using the fixing components. Then, the side fixing rods are inserted from top to bottom through the sides of the left and right mounting frames, while aligning the first dovetail strip with the first dovetail groove. This makes it difficult for the side fixing rods to shift in the width direction of the left and right mounting frames, thus improving the stability of the side fixing rods. Then, the top fixing rod is inserted from the top of the left and right mounting frames, and the second dovetail strip is aligned with the second dovetail groove. This makes it difficult for the top fixing rod to shift in the length direction of the left and right mounting frames, thus improving the stability of the top fixing rods.

[0035] Optionally, the bottom of the first dovetail groove is closed, one end of the second dovetail groove is closed, the number of top fixing bolts is one, and the top fixing bolt passes through the end of the top fixing rod away from the closed end of the second dovetail groove; the bottom surface of the top fixing rod abuts against the top of the side fixing rod.

[0036] By adopting the above technical solution, since the water flow in the storage tank is constantly being drawn in, the storage tank is prone to slight vibrations. The bottom of the first dovetail groove is closed, and the bottom surface of the top fixing rod abuts against the top of the side fixing rod, thus limiting the top and bottom of the side fixing rod. Combined with the first dovetail strip, all four sides of the side fixing rod are limited, ensuring good fixation of the left and right tank bodies even when the storage tank vibrates. Furthermore, simply inserting the side fixing rod and top fixing rod into their corresponding positions and finally locking them with a single top fixing bolt provides a wide fixing range, simple operation, and high stability.

[0037] Optionally, the bottom fixing structure includes a rotating motor, a drive gear, and a bottom fixing rod; a bottom limiting groove is provided on the top surface of the bottom fixing rod, the bottom limiting groove passes through both ends of the bottom fixing rod, and the bottoms of the left mounting frame and the right mounting frame are simultaneously embedded in the bottom limiting groove;

[0038] A mounting bracket is fixedly connected to the bottom surface of the left housing. The rotating motor is fixedly connected to the mounting bracket and located on one side of the left housing. The drive gear is coaxially arranged and fixedly connected to the rotating shaft of the rotating motor. A rack that meshes with the drive gear is provided on the bottom surface of the bottom fixing rod. A dovetail-shaped limiting rod is fixedly connected to the top surface of the bottom fixing rod. A dovetail-shaped limiting groove for the limiting rod to slide is provided on the bottom surface of the left housing. The bottom fixing rod can slide to the bottom of both the left and right mounting frames, and the bottom fixing rod can also slide to disengage from both the left and right mounting frames.

[0039] By adopting the above technical solution, since the bottom of the left and right mounting frames is located at a low position, it is inconvenient to manually insert the bottom fixing rod. This application uses a rotating motor, drive gear and rack to automatically fix the bottom of the left and right mounting frames mechanically, thereby improving the ease of operation.

[0040] In summary, this application includes at least one of the following beneficial technical effects:

[0041] 1. The size of the pump inlet pipe can be set according to actual conditions. Since the pump inlet pipe and the pump body are connected by a water storage tank, the size of the pump inlet pipe can be set to be larger without worrying about the size of the pump body. In addition, the water storage tank can also store water, storing a certain amount of water in the tank, and then drawing it into the pump body through the upper and lower impeller inlet pipes. The upper and lower impeller inlet pipes are two pipes, allowing for simultaneous suction from both ends, which also improves suction efficiency. Even if the flow rate in the pump inlet pipe suddenly decreases, the water storage tank can also play a certain buffering role, ensuring that both the upper and lower impeller inlet pipes are fully suctioned, resulting in a stable and less likely decrease in the suction volume, thus improving suction efficiency.

[0042] 2. The filter screen divides the interior of the water tank into two chambers, left and right, so that the water can be filtered before entering the upper and lower impeller inlet pipes, thereby reducing the possibility of debris entering the pump body and helping to prevent malfunctions of the pump's internal structure. Since the left and right chambers are detachably connected and the filter screen is detachably installed inside the water tank, the water tank can be opened periodically to clean the inside of the water tank and the filter screen.

[0043] 3. When installing the filter screen, first insert the frame into the sealing frame outside the water tank to make the filter screen and the sealing frame a whole. Then, insert the filter screen and the sealing frame into the mating side groove and mating bottom groove on the left mounting frame from top to bottom. Finally, rotate the left and right mounting frames to close them, press the sealing frame between the left and right mounting frames, and fix it with the fixing components.

[0044] Because the frame is rigid, the filter screen is first inserted into the sealing frame to form a whole, making it easy to insert the sealing frame into the left mounting frame. This also allows for the installation of the filter screen and provides a good seal. The structure of each part is simple and easy to install. Each part can be slotted during processing, making processing convenient. The sealing frame can also be limited by the side groove and bottom groove, preventing it from falling between the left and right mounting frames, ensuring stable installation. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the internal structure of a high-efficiency self-priming pump according to an embodiment of this application.

[0046] Figure 2 This is a schematic diagram of the structure of the water storage tank used to illustrate Embodiment 2 of this application.

[0047] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0048] Figure 4 This is a schematic diagram of the rear structure of the water storage tank in Embodiment 2 of this application.

[0049] Figure 5 This is a schematic diagram of the structure of the water tank in Embodiment 2 of this application, showing the rear structure after the side fixing rod is hidden.

[0050] Figure 6 This is a schematic diagram of the structure of the water tank after the top fixing rod is hidden in Embodiment 2 of this application.

[0051] Figure 7 yes Figure 6 Enlarged view of point B in the middle.

[0052] Figure 8 This is a schematic diagram of the water tank structure after concealing the side fixing rod and the top fixing rod in Embodiment 2.

[0053] Figure 9 yes Figure 8 A magnified view of point C in the middle.

[0054] Figure 10 This is a schematic diagram of the connection structure between the filter screen and the sealing frame used in Example 2.

[0055] Figure 11 This is a schematic diagram of the structure used in Example 2 to illustrate the sealing bottom groove and the sealing side groove.

[0056] Figure 12 This is a schematic diagram of the filter screen used in Example 2.

[0057] Figure 13 This is a schematic diagram of structure E used to demonstrate the mating bottom groove in Example 2.

[0058] Figure 14 This is a schematic diagram of the bottom fixing rod used in Example 2.

[0059] Figure 15 This is a schematic diagram of the top fixing rod used in Embodiment 2.

[0060] Figure 16 This is a schematic diagram of the side fixing rod used to demonstrate the structure in Example 2.

[0061] Explanation of reference numerals in the attached drawings: 1. Pump body; 11. Pump casing; 111. Upper impeller inlet pipe; 112. Lower impeller inlet pipe; 113. Impeller outlet pipe; 114. Pump outlet pipe; 12. Motor; 13. Coupling; 14. Pump shaft; 15. Suction impeller; 16. Flange; 2. Water storage tank; 21. Pump inlet pipe; 22. Left housing; 23. Right housing; 24. Left side mounting frame; 241. Matching side groove; 242. Matching bottom groove; 25. Right side mounting frame; 3. Filter screen; 31. Frame; 32. Mesh; 4. Sealing frame; 41. Installation 42. Side groove; 43. Sealing side groove; 44. Sealing bottom groove; 5. Fixing assembly; 51. Side fixing rod; 511. Side limiting groove; 512. First dovetail strip; 513. First dovetail groove; 52. Top fixing rod; 521. Top limiting groove; 522. Second dovetail strip; 523. Second dovetail groove; 53. Top fixing bolt; 54. Rotating motor; 55. Drive gear; 56. Bottom fixing rod; 561. Bottom limiting groove; 562. Rack; 6. Mounting bracket; 61. Limiting rod; 62. Limiting groove. Detailed Implementation

[0062] The following is in conjunction with the appendix Figure 1-16 This application will be described in further detail.

[0063] Example 1

[0064] This application discloses a high-efficiency self-priming pump. (Refer to...) Figure 1The high-efficiency self-priming pump includes a pump body 1, a pump casing 11, a motor 12, a coupling 13, a pump shaft 14, and a suction impeller 15. The motor 12 is fixedly mounted on the top of the pump body 1. The rotating shaft of the motor 12 is connected to the pump shaft 14 via the coupling 13. The pump shaft 14 passes through the pump body 1 and is connected to the suction impeller 15, which is installed inside the pump casing 11. A water storage tank 2 is fixedly mounted on the side of the pump body 1. The top of the water storage tank 2 is connected to a pump inlet pipe 21. One side of the pump casing 11 is connected to an upper impeller inlet pipe 111 and a lower impeller inlet pipe 112, and the other side of the pump body 11 is connected to an impeller outlet pipe 113. The end of the upper impeller inlet pipe 111 away from the pump body 11 is connected and sealed to the top of the side of the water storage tank 2. The end of the lower impeller inlet pipe 112 away from the pump body 11 is connected and sealed to the bottom of the side of the water storage tank 2. The upper impeller inlet pipe 111 and the lower impeller inlet pipe 112 are located on the upper and lower sides of the pump body 11, respectively. The end of the impeller outlet pipe 113 away from the main body extends out of the pump body 1 and is connected to the water pump outlet pipe 114.

[0065] The size of the pump inlet pipe 21 can be set according to the actual situation. Since the pump inlet pipe 21 and the pump body 11 are connected by the water storage tank 2, the size of the pump inlet pipe 21 can be set to be larger without worrying about the size of the pump body 11. In addition, the water storage tank 2 can also store water, storing a certain amount of water in the water storage tank 2, and then drawing the water into the pump body 11 through the upper impeller inlet pipe 111 and the lower impeller inlet pipe 112 via the suction impeller 15. The upper impeller inlet pipe 111 and the lower impeller inlet pipe 112 are two pipes, and the simultaneous suction from both ends can also improve the suction efficiency. Even if the flow rate in the pump inlet pipe 21 suddenly decreases, the water storage tank 2 can also play a certain buffering role, ensuring that both the upper impeller inlet pipe 111 and the lower impeller inlet pipe 112 are fully suctioned, the suction volume is stable and not easily reduced, and the suction efficiency is also improved.

[0066] Reference Figure 1 The internal chamber of the pump body 11 on the side away from the pump outlet pipe 114 is designed with a reduced-expansion shape along the direction closer to the water storage tank 2. This increases the water intake within the pump body 11, resulting in better vortex action and enhanced water suction. The impeller outlet pipe 113 and the pump outlet pipe 114 are detachably connected via flange 16. The impeller outlet pipe 113 and the pump body 1 can be transported independently and reassembled on-site, making transportation and assembly convenient.

[0067] Example 2

[0068] The difference between this embodiment and Embodiment 1 is that, referring to... Figure 1-10The water storage tank 2 includes a detachably connected left tank 22 and a right tank 23. The upper impeller inlet pipe 111 and the lower impeller inlet pipe 112 are connected to the side of the right tank 23, and the water pump inlet pipe 21 is connected to the top of the left tank 22. A filter screen 3 is detachably installed inside the water storage tank 2, which divides the interior of the water storage tank 2 into left and right chambers.

[0069] The filter screen 3 divides the interior of the water tank 2 into left and right chambers, allowing water to be filtered before entering the upper impeller inlet pipe 111 and the lower impeller inlet pipe 112. This reduces the possibility of debris entering the pump body 11, thus helping to prevent malfunctions in the internal structure of the pump body 11. Since the left chamber 22 and the right chamber 23 are detachably connected, and the filter screen 3 is detachably installed inside the water tank 2, the water tank 2 can be opened periodically to clean the interior of the water tank 2 and the filter screen 3.

[0070] Reference Figure 1-5 A left mounting frame 24 is fixedly connected to the side of the left tank 22 near the right tank 23, and the left mounting frame 24 is coaxially arranged with the opening of the left tank 22. A right mounting frame 25 is fixedly connected to the side of the right tank 23 near the left tank 22, and the right mounting frame 25 is coaxially arranged with the opening of the right tank 23. The left tank 22 and the right tank 23 are hinged to each other on one side. A sealing frame 4 is provided between the left mounting frame 24 and the right mounting frame 25. The sealing frame 4 is made of rubber material. A fixing component 5 is provided on the water tank 2. The fixing component 5 is used to fix the left mounting frame 24 and the right mounting frame 25 and press the sealing frame 4 between the left mounting frame 24 and the right mounting frame 25.

[0071] When installing the filter screen 3, first rotate to open the left housing 22 and the right housing 23, then install the filter screen 3 inside the water storage tank 2. At the same time, install the sealing frame 4 between the left mounting frame 24 and the right mounting frame 25. Then rotate the left housing 22 and the right housing 23 to close them and fix them with the fixing component 5, thereby pressing the sealing frame 4 between the left housing 22 and the right housing 23. The sealing frame 4 can improve the sealing performance of the connection between the left housing 22 and the right housing 23, and play a role in preventing water leakage.

[0072] Reference Figure 10-12The filter screen 3 includes a frame 31 and a mesh 32 fixedly connected to the frame 31. The sealing frame 4 has two vertical inner sidewalls each with an installation side groove 41, which penetrates the top surface of the sealing frame 4. The bottom inner wall of the sealing frame 4 has an installation bottom groove 42, whose two ends communicate with the two side installation side grooves 41 respectively. The two sides of the frame 31 pass through the two side installation grooves 41 respectively, and the bottom of the frame 31 passes through the installation bottom groove 42. The sealing frame 4 has two vertical outer sidewalls each with a sealing side groove 43, which penetrates the top surface of the sealing frame 4. The sealing side groove 43 and the installation side groove 41 are offset in the thickness direction of the sealing frame 4. The bottom wall of the sealing frame 4 has a sealing bottom groove 44, whose two ends communicate with the two side sealing bottom grooves 44 respectively.

[0073] Reference Figure 13 The left mounting frame 24 has two vertical inner sidewalls with mating side grooves 241 that penetrate the top surface of the left mounting frame 24. The bottom inner wall of the left mounting frame 24 has a mating bottom groove 242, the two ends of which communicate with the mating side grooves 241 on both sides. The sealing frame 4 is inserted into the left mounting frame 24 from top to bottom, and a sealing connection is achieved through the sealing side groove 43, the mating side groove 241, the sealing bottom groove 44, and the mating bottom groove 242.

[0074] When installing the filter screen 3, first insert the frame 31 into the sealing frame 4 outside the water tank 2, so that the filter screen 3 and the sealing frame 4 form a whole. Then, insert the filter screen 3 and the sealing frame 4 from top to bottom into the mating side groove 241 and mating bottom groove 242 on the left mounting frame 24. Finally, rotate the left mounting frame 24 and the right mounting frame 25 to close them, pressing the sealing frame 4 between the left mounting frame 24 and the right mounting frame 25, and fix it with the fixing component 5. Since the frame 31 is rigid, inserting the filter screen 3 into the sealing frame 4 first to form a whole makes it easier to insert the sealing frame 4 into the left mounting frame 24. This also achieves the installation of the filter screen 3 and provides a good sealing effect. The structure of each part is simple and easy to install. Each part can be slotted during processing, which is also convenient. The sealing frame 4 can also be limited by the mating side groove 241 and the mating bottom groove 242, and will not fall out between the left mounting frame 24 and the right mounting frame 25, ensuring stable installation.

[0075] Reference Figure 2-9 , Figure 13-16The fixing component 5 includes a bottom fixing structure, side fixing rods 51, a top fixing rod 52, and a top fixing bolt 53. The bottom fixing structure is used to fix the bottom of the left mounting frame 24 and the right mounting frame 25. The side fixing rods 51 are located on opposite sides of the water tank 2. Each side fixing rod 51 has a side limiting groove 511 on its closest side, which extends through both ends of the side fixing rod 51. The sides of the left mounting frame 24 and the right mounting frame 25 are simultaneously embedded in the side limiting groove 511. The bottom surface of the top fixing rod 52 has a top limiting groove 521. The tops of the left mounting frame 24 and the right mounting frame 25 are embedded in the top limiting groove 521. The top fixing bolt 53 passes through the top fixing rod 52, the left mounting frame 24, and the right mounting frame 25, thus achieving relative fixation of the top fixing rod 52, the left mounting frame 24, and the right mounting frame 25.

[0076] Reference Figure 3 and Figure 14 The bottom fixing structure includes a rotating motor 54, a drive gear 55, and a bottom fixing rod 56. A bottom limiting groove 561 is provided on the top surface of the bottom fixing rod 56. The bottom limiting groove 561 passes through both ends of the bottom fixing rod 56. The bottoms of the left mounting frame 24 and the right mounting frame 25 are simultaneously embedded in the bottom limiting groove 561. A mounting bracket 6 is fixedly connected to the bottom surface of the left housing 22. A rotating motor 54 is fixedly connected to the mounting bracket 6 and located on one side of the left housing 22. A drive gear 55 is coaxially arranged with and fixedly connected to the rotating shaft of the rotating motor 54. A rack 562 that meshes with the drive gear 55 is provided on the bottom surface of the bottom fixing rod 56. A dovetail-shaped limiting rod 61 is fixedly connected to the top surface of the bottom fixing rod 56. A dovetail-shaped limiting groove 62 for the limiting rod 61 to slide is provided on the bottom surface of the left housing 22. The bottom fixing rod 56 can slide to the bottom of both the left mounting frame 24 and the right mounting frame 25, and the bottom fixing rod 56 can also slide to disengage from the left mounting frame 24 and the right mounting frame 25.

[0077] Since the bottom of the left mounting frame 24 and the right mounting frame 25 are located at a low position, it is inconvenient to manually insert the bottom fixing rod 56. This application uses a rotating motor 54, drive gear 55 and rack 562 to automatically fix the bottom of the left mounting frame 24 and the right mounting frame 25 mechanically, thereby improving the ease of operation.

[0078] The bottoms of the left mounting frame 24 and the right mounting frame 25 can be fixed by the bottom fixing structure, the sides of the left mounting frame 24 and the right mounting frame 25 can be fixed by the side fixing rod 51, and the tops of the left mounting frame 24 and the right mounting frame 25 can be fixed by the top fixing bolt 53, thereby achieving the fixation of the four sides of the left mounting frame 24 and the right mounting frame 25, and thus improving the sealing performance of the sealing frame 4.

[0079] Reference Figure 7 , Figure 9 , Figure 15 and Figure 16 A first dovetail strip 512 is fixedly connected to the two opposite side walls of the side limiting groove 511. A first dovetail groove 513 is provided on the side of the left mounting frame 24 and the right mounting frame 25 that are far apart from each other, for the first dovetail strip 512 to pass through. A second dovetail strip 522 is fixedly connected to the two opposite side walls of the top limiting groove 521. A second dovetail groove 523 is provided on the top of the side of the left mounting frame 24 and the right mounting frame 25 that are far apart from each other, for the second dovetail strip 522 to pass through.

[0080] When fixing the left mounting frame 24 and the right mounting frame 25, the bottom is first initially fixed by the fixing component 5. Then, the side fixing rod 51 is inserted from top to bottom from the side of the left mounting frame 24 and the right mounting frame 25, while the first dovetail strip 512 is aligned with the first dovetail groove 513. This makes it less likely for the side fixing rod 51 to shift in the width direction of the left mounting frame 24 and the right mounting frame 25, thus improving the stability of the side fixing rod 51. Then, the top fixing rod 52 is inserted from the top of the left mounting frame 24 and the right mounting frame 25, and the second dovetail strip 522 is aligned with the second dovetail groove 523. This makes it less likely for the top fixing rod 52 to shift in the length direction of the left mounting frame 24 and the right mounting frame 25, thus improving the stability of the top fixing rod 52. The bottom of the first dovetail groove 513 is closed, one end of the second dovetail groove 523 is closed, the number of top fixing bolts 53 is one, and the top fixing bolt 53 passes through the end of the top fixing rod 52 away from the closed end of the second dovetail groove 523; the bottom surface of the top fixing rod 52 abuts against the top of the side fixing rod 51.

[0081] Because the water in the water tank 2 is constantly being drawn in, it is prone to slight vibrations. The bottom of the first dovetail groove 513 is closed, and the bottom surface of the top fixing rod 52 abuts against the top of the side fixing rod 51, thus limiting the top and bottom of the side fixing rod 51. Combined with the first dovetail strip 512, this ensures that all four sides of the side fixing rod 51 are limited, effectively securing the left tank 22 and right tank 23 even if the water tank 2 vibrates. Furthermore, simply inserting the side fixing rod 51 and top fixing rod 52 into their corresponding positions and locking them with a single top fixing bolt 53 provides a wide range of fixation, is simple to operate, and offers high stability.

[0082] The implementation principle of a high-efficiency self-priming pump according to an embodiment of this application is as follows: When installing the filter screen 3, first insert the frame 31 into the sealing frame 4 outside the water storage tank 2, so that the filter screen 3 and the sealing frame 4 form a whole. Then, insert the filter screen 3 and the sealing frame 4 from top to bottom into the mating side groove 241 and mating bottom groove 242 on the left mounting frame 24. Finally, rotate the left mounting frame 24 and the right mounting frame 25 to close them, press the sealing frame 4 between the left mounting frame 24 and the right mounting frame 25, and fix it by the fixing component 5.

[0083] Since the frame 31 is rigid, the filter screen 3 is first inserted into the sealing frame 4 to form a whole, which facilitates the insertion of the sealing frame 4 into the left mounting frame 24. This also enables the installation of the filter screen 3 and provides a good sealing effect. The structure of each part is simple and easy to install. Each part can be slotted during processing, which is also convenient. The sealing frame 4 can also be limited by the mating side groove 241 and the mating bottom groove 242, so it will not fall out between the left mounting frame 24 and the right mounting frame 25, ensuring stable installation.

[0084] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-efficiency self-priming pump, characterized in that: It includes a pump body (1), a pump body (11), a motor (12), a coupling (13), a pump shaft (14), and a suction impeller (15); The motor (12) is located at the top of the pump body (1). The rotating shaft of the motor (12) is connected to the pump shaft (14) through a coupling (13). The pump shaft (14) passes into the pump body (1) and is connected to the suction impeller (15). The suction impeller (15) is located inside the pump body (11). A water storage tank (2) is installed on the side of the pump body (1). A water pump inlet pipe (21) is connected to the top of the water storage tank (2). An upper impeller inlet pipe (111) and a lower impeller inlet pipe (112) are connected to one side of the pump body (11). An impeller outlet pipe (113) is connected to the other side of the pump body (11). The upper impeller inlet pipe (111) is connected and sealed to the top of the side of the water tank (2) at one end away from the pump body (11), and the lower impeller inlet pipe (112) is connected and sealed to the bottom of the side of the water tank (2) at one end away from the pump body (11). The upper impeller inlet pipe (111) and the lower impeller inlet pipe (112) are located on the upper and lower sides of the pump body (11), respectively. The impeller outlet pipe (113) extends out of the pump body (1) at the end away from the main body and is connected to the water pump outlet pipe (114); The water storage tank (2) includes a detachably connected left tank (22) and a right tank (23). The upper impeller inlet pipe (111) and the lower impeller inlet pipe (112) are connected to the side of the right tank (23), and the water pump inlet pipe (21) is connected to the top of the left tank (22). The water storage tank (2) is detachably equipped with a filter screen (3), which divides the interior of the water storage tank (2) into two chambers, left and right. A left mounting frame (24) is fixedly connected to the side of the left tank (22) near the right tank (23), and the left mounting frame (24) is coaxially arranged with the opening of the left tank (22). A right mounting frame (25) is fixedly connected to the side of the right tank (23) near the left tank (22), and the right mounting frame (25) is coaxially arranged with the opening of the right tank (23). The left housing (22) and the right housing (23) are hinged together on one side. A sealing frame (4) is provided between the left mounting frame (24) and the right mounting frame (25). The sealing frame (4) is made of rubber material. A fixing component (5) is provided on the water tank (2). The fixing component (5) is used to fix the left mounting frame (24) and the right mounting frame (25) and press the sealing frame (4) between the left mounting frame (24) and the right mounting frame (25). The filter screen (3) includes a frame (31) and a fixing connector. The mesh (32) is attached to the frame (31). The sealing frame (4) has a mounting side groove (41) on each of its two vertical inner side walls. The mounting side groove (41) penetrates the top surface of the sealing frame (4). The bottom wall of the inner side of the sealing frame (4) has a mounting bottom groove (42). The two ends of the mounting bottom groove (42) are connected to the mounting side grooves (41) on both sides respectively. The two sides of the frame (31) are respectively inserted into the two mounting side grooves (41). The bottom of the frame (31) is inserted into the mounting bottom groove (42). A sealing side groove (43) is provided on each of the two vertical outer side walls of the sealing frame (4). The sealing side groove (43) penetrates the top surface of the sealing frame (4). The sealing side groove (43) and the mounting side groove (41) are offset in the thickness direction of the sealing frame (4). A sealing bottom groove (44) is provided on the bottom wall of the sealing frame (4). The two ends of the sealing bottom groove (44) are respectively connected to the sealing bottom grooves (44) on both sides. The left mounting frame (24) has two vertical inner sidewalls with mating side grooves (241) that penetrate the top surface of the left mounting frame (24). The left mounting frame (24) has a mating bottom groove (242) on the bottom wall inside the left mounting frame (24). The two ends of the mating bottom groove (242) are respectively connected to the mating side grooves (241) on both sides. The sealing frame (4) is inserted into the left mounting frame (24) from top to bottom, and the insertion seal is achieved through the sealing side groove (43), the mating side groove (241), the sealing bottom groove (44), and the mating bottom groove (242).

2. A high efficiency self-priming pump according to claim 1, wherein: The internal chamber of the pump body (11) on the side away from the pump outlet pipe (114) is arranged in a reduced-expansion manner along the direction close to the water storage tank (2).

3. A high efficiency self-priming pump according to claim 1, wherein: The impeller outlet pipe (113) and the water pump outlet pipe (114) are detachably connected by a flange (16).

4. A high efficiency self-priming pump according to claim 1, wherein: The fixing assembly (5) includes a bottom fixing structure, a side fixing rod (51), a top fixing rod (52), and a top fixing bolt (53); The bottom fixing structure is used to fix the bottom of the left mounting frame (24) and the right mounting frame (25); the side fixing rod (51) is set on the opposite sides of the water tank (2), and the side fixing rod (51) on the side that is close to each other is provided with a side limiting groove (511). The side limiting groove (511) passes through both ends of the side fixing rod (51), and the side of the left mounting frame (24) and the right mounting frame (25) are simultaneously embedded in the side limiting groove (511); The bottom surface of the top fixing rod (52) is provided with a top limiting groove (521). The top of the left mounting frame (24) and the right mounting frame (25) are embedded in the top limiting groove (521). The top fixing bolt (53) passes through the top fixing rod (52), the left mounting frame (24) and the right mounting frame (25) at the same time, so as to realize the relative fixation of the top fixing rod (52), the left mounting frame (24) and the right mounting frame (25).

5. A high efficiency self-priming pump according to claim 4, wherein: A first dovetail strip (512) is fixedly connected to the two opposite side walls of the side limiting groove (511). A first dovetail groove (513) for the first dovetail strip (512) to pass through is provided on the side of the left mounting frame (24) and the right mounting frame (25) that are far apart from each other. A second dovetail strip (522) is fixedly connected to the two opposite side walls of the top limiting groove (521). A second dovetail groove (523) for the second dovetail strip (522) to pass through is provided on the top of the side of the left mounting frame (24) and the right mounting frame (25) that are far apart from each other.

6. A high efficiency self-priming pump according to claim 5, wherein: The bottom of the first dovetail groove (513) is closed, one end of the second dovetail groove (523) is closed, the number of the top fixing bolts (53) is one, and the top fixing bolts (53) pass through the top fixing rod (52) away from the closed end of the second dovetail groove (523); the bottom surface of the top fixing rod (52) abuts against the top of the side fixing rod (51).

7. A high efficiency self-priming pump as claimed in claim 4 wherein: The bottom fixing structure includes a rotating motor (54), a drive gear (55), and a bottom fixing rod (56); a bottom limiting groove (561) is provided on the top surface of the bottom fixing rod (56), the bottom limiting groove (561) passes through both ends of the bottom fixing rod (56), and the bottoms of the left mounting frame (24) and the right mounting frame (25) are simultaneously embedded in the bottom limiting groove (561); A mounting bracket (6) is fixedly connected to the bottom surface of the left housing (22). The rotating motor (54) is fixedly connected to the mounting bracket (6) and located on one side of the left housing (22). The drive gear (55) is coaxially arranged and fixedly connected to the rotating shaft of the rotating motor (54). A rack (562) that meshes with the drive gear (55) is provided on the bottom surface of the bottom fixing rod (56). A dovetail-shaped limiting rod (61) is fixedly connected to the top surface of the bottom fixing rod (56). A dovetail-shaped limiting groove (62) for the limiting rod (61) to slide is provided on the bottom surface of the left housing (22). The bottom fixing rod (56) can slide to the bottom of both the left mounting frame (24) and the right mounting frame (25) to fix them simultaneously. The bottom fixing rod (56) can also slide to disengage from the left mounting frame (24) and the right mounting frame (25).

Images