A high efficiency synergistic liquid pump

Abstract

The utility model relates to liquid pump technical field especially relates to a kind of high-efficiency collaborative liquid pump, including pump main body, the pump main body includes the end cap, motor assembly, middle shell, impeller assembly, pump shaft and pump head assembly that are sequentially arranged;The end cap is used to close one end of the motor assembly;The motor assembly is used to drive impeller assembly rotation;The middle shell is detachably connected to one end of end cap;The impeller assembly is connected to middle shell, and it includes impeller body, connecting cylinder and several blades;The impeller body is discoid;The connecting cylinder is coaxially fixed in one side of the impeller body;The blade is arc structure, and it is evenly distributed along the circumferential direction of the side of the impeller body away from the connecting cylinder;The pump shaft is arranged in impeller assembly, and the both ends of the pump shaft are connected with middle shell and pump head assembly respectively;The pump head assembly is used to form liquid delivery flow channel.The utility model provides a kind of high-efficiency, stable, reliable high-efficiency collaborative liquid pump.

Description

Technical Field

[0001] This utility model relates to the field of liquid pump technology, and in particular to a high-efficiency synergistic liquid pump. Background Technology

[0002] In the field of liquid conveying equipment, high-efficiency collaborative liquid pumps are key equipment and are widely used in industrial production, civil water supply, automobile cooling and other scenarios.

[0003] Traditional high-efficiency synergistic liquid pumps suffer from crude structural design, poor connection stability between components, and insufficient installation and positioning accuracy. This easily leads to high vibration and noise during operation, significant power transmission losses, and low liquid delivery efficiency. Furthermore, inadequate sealing design results in a high risk of liquid leakage, affecting equipment lifespan and operational reliability. Some pumps also have simplistic motor component control, making it difficult to precisely adjust operating parameters to adapt to different working conditions. Inefficient blade and flow channel designs result in high liquid flow resistance and high energy consumption, failing to meet the increasingly demanding requirements for high efficiency, stability, and energy saving. Therefore, it is necessary to optimize the overall structure and component details of high-efficiency synergistic liquid pumps. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a high-efficiency, stable, and reliable high-efficiency synergistic liquid pump.

[0005] The present invention adopts the following technical solution:

[0006] A high-efficiency synergistic liquid pump includes a pump body, which comprises an end cover, a motor assembly, a middle shell, an impeller assembly, a pump shaft, and a pump head assembly arranged sequentially. The end cover is used to close one end of the motor assembly. The motor assembly is used to drive the impeller assembly to rotate. The middle shell is detachably connected to one end of the end cover. The impeller assembly is connected to the middle shell and includes an impeller body, a connecting cylinder, and a plurality of blades. The impeller body is disc-shaped. The connecting cylinder is coaxially fixed to one side of the impeller body. The blades have an arc-shaped structure and are evenly distributed circumferentially along the side of the impeller body away from the connecting cylinder. The pump shaft passes through the impeller assembly, and both ends of the pump shaft are respectively connected to the middle shell and the pump head assembly. The pump head assembly is used to form a liquid delivery channel.

[0007] A further improvement to the above technical solution is that the end cap has an inner cavity, and the bottom of the inner cavity has a first annular groove along the circumferential direction. The inner diameter of the first annular groove is interference-fitted with the outer diameter of the motor assembly to achieve radial positioning of the rear end of the motor assembly.

[0008] A further improvement to the above technical solution is that the four corners of the end cap are provided with through-holes for mounting the cap body, and a cover plate is provided at the end of the end of the end cap mounting hole that is away from the middle shell. The cover plate is used to close the end of the end cap mounting hole.

[0009] A further improvement to the above technical solution is that the motor assembly includes a motor body and a control circuit board; the motor body is connected to the control circuit board; the control circuit board is mounted on the bottom surface of the first annular groove, and the control circuit board is externally connected to external circuitry.

[0010] A further improvement to the above technical solution is that the two ends of the middle shell are respectively formed as a first connecting end and a second connecting end. The first connecting end is used to be detachably connected to the end cover by screws. The end face of the second connecting end is provided with a sealing groove, and a sealing ring is provided inside the sealing groove. The second connecting end is used to seal and connect with the pump head. The interior of the middle shell is provided with a cylindrical inner cavity for accommodating the impeller assembly. A connecting seat for connecting to the pump shaft is provided at the center of the cylindrical inner cavity.

[0011] A further improvement to the above technical solution is that the end face of the first connecting end is provided with a second annular groove along the circumference, which is used to achieve radial positioning of the front end of the motor assembly.

[0012] A further improvement to the above technical solution is that a through-hole is provided in the center of the connecting cylinder, and a bushing is provided inside the through-hole, and the bushing is connected to the pump shaft.

[0013] A further improvement to the above technical solution is that the number of blades is seven, and the end of the blade closest to the center of the impeller body is provided with a first chamfer, and the other end away from the center of the impeller body is provided with a second chamfer.

[0014] A further improvement to the above technical solution is that the pump head assembly includes a pump head housing, an inlet port, and an outlet port; the pump head housing has an internal cavity for accommodating the impeller assembly, and a transmission connection part for cooperating with the pump shaft is provided at the center of the cavity; the four corners of the pump head housing have pump head mounting holes for overall installation and fixation of the pump head assembly; both the inlet port and the outlet port are corrugated pipe fittings; the inlet port is vertically connected to the center of the cavity; and the outlet port is connected to the outer peripheral sidewall of the cavity.

[0015] A further improvement to the above technical solution is that the transmission connection part includes a mounting ring and three support legs; the mounting ring is coaxially arranged with the pump shaft; the three support legs are evenly distributed and connected along the circumference of the mounting ring, and the support legs are connected to the inner wall of the receiving cavity.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention utilizes the design of annular grooves in the end cap, connecting seats in the middle shell, and transmission connections in the pump head to precisely position and support the motor assembly, pump shaft, and impeller assembly, reducing operational vibration and displacement, ensuring the stable coordination of all components, and improving the reliability of pump operation. The end cap's sealed mounting holes, the sealing ring at the second connecting end of the middle shell, and the bellows joint of the pump head assembly provide multiple layers of protection against liquid leakage and external impurities, protecting internal components and extending the pump's service life. The motor assembly's control circuit board enables precise control, the bushing optimizes pump shaft rotation, and the chamfering and quantity design of the blades improves liquid power conversion efficiency. The coordinated operation of all components reduces power transmission losses and increases liquid delivery efficiency, adapting to diverse operating conditions. Detachable connections facilitate maintenance, external wiring expands intelligent control, and optimized blades and flow channels reduce wear and energy consumption, enhancing the pump's adaptability to various scenarios and its long-term operational economy. This comprehensive performance improvement, covering everything from basic structure to detailed functions, meets the demands for efficient, stable, and energy-saving liquid delivery. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the high-efficiency synergistic liquid pump of this utility model;

[0019] Figure 2 for Figure 1 Exploded view of a high-efficiency synergistic liquid pump;

[0020] Figure 3 for Figure 1 A three-dimensional sectional view of a high-efficiency synergistic liquid pump;

[0021] Figure 4 for Figure 1 A schematic diagram of the end cap structure of a high-efficiency synergistic liquid pump;

[0022] Figure 5 for Figure 1 A schematic diagram of the middle shell structure of a high-efficiency synergistic liquid pump;

[0023] Figure 6 for Figure 1 A schematic diagram of the impeller assembly of a high-efficiency synergistic liquid pump;

[0024] Figure 7 for Figure 6 A schematic diagram of the impeller assembly from another angle;

[0025] Figure 8 for Figure 1 A schematic diagram of the pump head assembly of a high-efficiency collaborative liquid pump;

[0026] Figure 9 for Figure 1 A schematic diagram of another embodiment of the impeller assembly of a high-efficiency synergistic liquid pump;

[0027] Figure 10 for Figure 1 A schematic diagram of another embodiment of the pump head assembly of a high-efficiency synergistic liquid pump;

[0028] Figure 11 for Figure 10 A schematic diagram of the pump head assembly from another angle.

[0029] The numbers on the map are:

[0030] 10-Pump body, 11-Pump shaft, 20-End cover, 21-Cavity inside the cover, 22-First annular groove, 23-Cavity mounting hole, 24-Cover plate, 30-Motor assembly, 31-Motor body, 32-Control circuit board, 33-External wiring, 40-Middle shell, 41-First connecting end, 42-Second connecting end, 43-Sealing groove, 44-Sealing ring, 45-Cylindrical inner cavity, 46-Connecting seat, 47-Second annular groove 50-Impeller assembly, 51-Impeller body, 52-Connecting cylinder, 53-Blade, 54-Through shaft hole, 55-Shaft sleeve, 56-First chamfer, 57-Second chamfer, 58-Outer side plate, 60-Pump head assembly, 61-Pump head housing, 62-Inlet port, 63-Outlet port, 64-Receiving cavity, 65-Transmission connection, 66-Pump head mounting hole, 67-Mounting ring, 68-Support leg, 69-Protruding tube, 70-Hollow column. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] like Figures 1 to 8 The diagram illustrates an embodiment of the present invention, relating to a high-efficiency synergistic liquid pump, comprising a pump body 10. The pump body 10 includes, sequentially arranged, an end cap 20, a motor assembly 30, a middle shell 40, an impeller assembly 50, a pump shaft 11, and a pump head assembly 60. The end cap 20 is used to close one end of the motor assembly 30. The motor assembly 30 is used to drive the impeller assembly 50 to rotate. The middle shell 40 is detachably connected to one end of the end cap 20. The impeller assembly 50 is connected to the middle shell. 40, which includes an impeller body 51, a connecting cylinder 52, and a plurality of blades 53; the impeller body 51 is disc-shaped; the connecting cylinder 52 is coaxially fixed to one side of the impeller body 51; the blades 53 are arc-shaped and are evenly distributed circumferentially along the side of the impeller body 51 away from the connecting cylinder 52; the pump shaft 11 passes through the impeller assembly 50, and the two ends of the pump shaft 11 are respectively connected to the middle shell 40 and the pump head assembly 60; the pump head assembly 60 is used to form a liquid conveying channel.

[0035] Specifically, the high-efficiency collaborative liquid pump is composed of an end cover 20, a motor assembly 30, a middle shell 40, an impeller assembly 50, a pump shaft 11, and a pump head assembly 60, arranged sequentially. Each core component has a clearly defined function: the end cover 20 encloses the motor assembly 30 to ensure an internal environment; the motor assembly 30 drives the impeller to rotate, providing the power source; the middle shell 40 serves as a connecting hub to connect the components; the impeller assembly 50 completes the liquid power conversion through the blade 53 structure; the pump shaft 11 transmits torque; and the pump head assembly 60 constructs the delivery flow channel. This architecture enables the orderly collaboration of all parts of the pump body, laying the foundation for the liquid delivery function, clearly defining the overall product structure, facilitating the understanding of the pump's basic compositional logic, and serving as a prerequisite for the subsequent functional operation of each component.

[0036] like Figure 2As shown, the end cap 20 has an inner cavity 21. The inner bottom of the inner cavity 21 has a first annular groove 22 along its circumference. The inner diameter of the first annular groove 22 is interference-fitted with the outer diameter of the motor assembly 30, used to achieve radial positioning of the rear end of the motor assembly 30. Specifically, this design precisely limits the radial movement of the motor assembly 30 during operation, ensuring that the motor output torque is stably transmitted to the pump shaft 11. This avoids problems such as power loss and increased vibration caused by motor displacement, improves the reliability and stability of pump operation, ensures continuous and efficient liquid delivery, and lays a solid foundation for stable power output from the pump.

[0037] like Figure 4 As shown, the end cover 20 has through-holes 23 at its four corners. A cover plate 24 is provided at the end of each cover hole 23 facing away from the middle shell 40. The cover plate 24 is used to seal the end of the cover hole 23. Specifically, the cover plate 24 seals the end of the mounting hole, effectively preventing external impurities such as dust and moisture from entering the end cover 20. This avoids impurities corroding key components such as the motor assembly 30 and control circuit board 32, protects the internal electrical and mechanical structures, enhances the overall sealing and structural integrity of the end cover 20, delays component aging, extends the service life of the high-efficiency synergistic liquid pump, and reduces the probability of failure due to external contamination.

[0038] like Figure 2 As shown, the motor assembly 30 includes a motor body 31 and a control circuit board 32; the motor body 31 is connected to the control circuit board 32; the control circuit board 32 is mounted on the bottom surface of the first annular groove 22, and an external circuit 33 is connected to the control circuit board 32. Specifically, the control circuit board 32 can precisely control parameters such as the speed and direction of the motor body 31, enabling the pump to operate on demand and improving the pump's intelligence and adaptability; the external circuit ensures the transmission of control signals and power, allowing the motor assembly 30 to interact with an external control system, expanding the pump's application scenarios and optimizing its working performance.

[0039] like Figure 2 and Figure 5As shown, the two ends of the middle shell 40 form a first connecting end 41 and a second connecting end 42, respectively. The first connecting end 41 is detachably connected to the end cover 20 by screws. The end face of the second connecting end 42 is provided with a sealing groove 43, and a sealing ring 44 is provided inside the sealing groove 43. The second connecting end 42 is used for sealing and docking with the pump head. The interior of the middle shell 40 is provided with a cylindrical inner cavity 45 for accommodating the impeller assembly 50. A connecting seat 46 for connecting to the pump shaft 11 is provided at the center of the cylindrical inner cavity 45. Specifically, the first connecting end 41 is detachably connected to the end cover 20 by screws, which facilitates pump body assembly and maintenance. The sealing groove 43 on the end face of the second connecting end 42 is equipped with a sealing ring 44, which can effectively prevent liquid leakage and improve the pump body sealing performance when sealing and docking with the pump head. The internal cylindrical cavity 45 provides a space for the impeller assembly 50. The central connecting seat 46 is connected to the pump shaft 11, providing support and positioning for the rotation of the pump shaft 11, ensuring that the impeller assembly 50 operates in a stable space, optimizing the rationality and sealing of the pump body structure, reducing the risk of liquid leakage, and improving operational stability.

[0040] like Figure 5 As shown, the end face of the first connecting end 41 is provided with a second annular groove 47 along the circumferential direction for radial positioning of the front end of the motor assembly 30. Specifically, the second annular groove 47 is provided to cooperate with the first annular groove 22 of the end cover 20 to radially position the motor assembly 30 from both the front and rear ends. The dual positioning further restricts the radial displacement of the motor assembly 30, reduces operating vibration and deviation, makes the motor output torque more stably transmitted to the pump shaft 11, improves the smoothness of pump operation, reduces component wear caused by motor shaking, ensures stable power transmission, and enhances the long-term operational reliability of the pump.

[0041] like Figure 3 and Figure 6 As shown, a through-hole 54 is provided in the center of the connecting cylinder 52, and a bushing 55 is provided inside the through-hole 54. The bushing 55 is connected to the pump shaft 11. Specifically, the bushing 55 provides stable support and a low-friction rotation environment for the pump shaft 11. On the one hand, it reduces the friction loss between the pump shaft 11 and the connecting cylinder 52 and improves the smoothness of the pump shaft 11's rotation; on the other hand, it radially limits the pump shaft 11, ensuring the coaxiality of the impeller assembly 50 during operation, avoiding the impeller from rubbing against the middle shell 40 and pump head due to the pump shaft 11's misalignment, extending the service life of the pump shaft 11, impeller, and other components, and maintaining the pump's efficient operation.

[0042] like Figure 7As shown, there are seven blades 53. One end of each blade 53 near the center of the impeller body 51 has a first chamfer 56, and the other end away from the center of the impeller body 51 has a second chamfer 57. Specifically, the seven blades 53 are evenly distributed, forming a stable and efficient hydrodynamic field when the impeller rotates, ensuring efficient liquid transport. The chamfers at both ends optimize the liquid flow pattern, reducing resistance and turbulence as the liquid flows through the blades 53, lowering energy consumption, reducing liquid flow noise, reducing wear on the blades 53 caused by fluid impact, and improving the pump's hydraulic performance, energy efficiency, and durability.

[0043] like Figure 8 As shown, the pump head assembly 60 includes a pump head housing 61, an inlet port 62, and an outlet port 63. The pump head housing 61 has an internal cavity 64 for accommodating the impeller assembly 50, and a transmission connection part 65 for cooperating with the pump shaft 11 is provided at the center of the cavity 64. The four corners of the pump head housing 61 have pump head mounting holes 66 for overall installation and fixation of the pump head assembly 60. Both the inlet port 62 and the outlet port 63 are corrugated pipe fittings. The inlet port 62 is vertically connected to the center of the cavity 64. The outlet port 63 is connected to the outer peripheral sidewall of the cavity 64. Specifically, the receiving cavity 64 provides a suitable space for the impeller assembly 50, and the transmission connection part 65 ensures the fit with the pump shaft 11; the four corner pump head mounting holes 66 ensure the overall stable installation of the pump head; the liquid inlet interface 62 and the liquid outlet interface 63 adopt corrugated pipe joints to enhance the sealing and pull-out resistance of the connection with external pipelines; the layout of the liquid inlet interface 62 vertically connecting to the center of the receiving cavity 64 and the liquid outlet interface 63 connecting to the outer peripheral sidewall optimizes the liquid flow channel, makes the liquid delivery smoother, improves the compatibility of the pump head with the external system and the liquid delivery efficiency, and ensures reliable connection between the pump body and the pipeline and efficient operation.

[0044] like Figure 8 As shown, the transmission connection part 65 includes a mounting ring 67 and three support legs 68; the mounting ring 67 is coaxially arranged with the pump shaft 11; the three support legs 68 are evenly distributed and connected along the circumference of the mounting ring 67, and the support legs 68 are connected to the inner wall of the receiving cavity 64. Specifically, the above structure provides a stable connection foundation for the pump shaft 11, evenly distributes the force on the pump shaft 11 during operation, ensures the connection stability between the pump shaft 11 and the pump head assembly 60, makes the power transmission of the impeller assembly 50 smoother, optimizes the power transmission path of the pump body, and improves the stability and efficiency of the liquid transportation process.

[0045] In some embodiments, such as Figure 9 As shown, the side of the plurality of blades 53a facing away from the impeller body 51a is covered with an outer plate 58.

[0046] In some embodiments, such as Figure 10 and Figure 11 As shown, the pump head assembly 60a includes a pump head housing 61a, an inlet port 62a, and an outlet port 63a. The pump head housing 61a has an internal cavity 64a for accommodating the impeller assembly 50a. A protruding tube 69 is connected to the center of the cavity 64a. The protruding tube 69 has a hollow column 70 for cooperating with the pump shaft 11. The inlet port 62a is vertically connected to one side of the protruding tube 69. The outlet port 63a communicates with the outer peripheral sidewall of the cavity 64a.

[0047] The working principle of this utility model is as follows:

[0048] The high-efficiency collaborative liquid pump uses the motor assembly 30 as its power source. The control circuit board 32 receives external signals or uses a built-in program to regulate the operation of the motor body 31, and the output torque is transmitted to the impeller assembly 50. The seven blades 53 on the impeller body 51 rotate with the pump shaft 11. In the cylindrical inner cavity 45 and the receiving cavity 64 of the middle shell 40, the rotation generates centrifugal force, which throws the liquid entering from the pump head inlet port 62 toward the outlet port 63, thus completing the liquid transportation.

[0049] During the process, the motor assembly 30 is radially positioned from the front and rear ends through the first annular groove 22 and the second annular groove 47, ensuring stable power output. The middle shell 40 connects the end cover 20 and the pump head, providing installation space for the impeller assembly 50 and support for the pump shaft 11. The bushing 55 of the connecting cylinder 52 ensures radial positioning of the pump shaft 11. The bellows joint of the pump head assembly 60 enhances the sealing of the pipeline connection, and the transmission connection part 65 ensures stable cooperation between the pump shaft 11 and the pump head. The coordinated operation of all components enables the high-efficiency collaborative liquid pump to efficiently and stably complete the liquid transportation task, achieving precise power control, low-resistance liquid flow, and long service life of the equipment.

[0050] This utility model, through the design of the annular groove of the end cover 20, the connecting seat 46 of the middle shell 40, and the pump head transmission connection part 65, precisely positions and supports the motor assembly 30, pump shaft 11, and impeller assembly 50, reducing operational vibration and displacement, ensuring the coordinated stability of each component, and improving the operational reliability of the pump body; the cover plate 24 of the end cover 20 seals the mounting holes, the sealing ring 44 of the second connecting end 42 of the middle shell 40, and the bellows joint of the pump head assembly 60, providing multiple layers to prevent liquid leakage and the intrusion of external impurities, protecting internal components and extending the service life of the pump body; the motor assembly The control circuit board 32 of component 30 enables precise regulation, the bushing 55 optimizes the rotation of the pump shaft 11, and the chamfering and quantity design of the blades 53 improves the efficiency of liquid power conversion. The cooperation of various components reduces power transmission loss and makes liquid delivery more efficient, adapting to various working conditions. The detachable connection facilitates maintenance, and the external wiring expands intelligent control. The optimization of the blades 53 and flow channels reduces wear and energy consumption, enhances the pump's adaptability to various scenarios and long-term operating economy, covering multi-dimensional performance improvements from basic structure to detailed functions, and meeting the needs of efficient, stable and energy-saving liquid delivery.

[0051] The above description merely illustrates the preferred technical solution of this utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A high-efficiency synergistic liquid pump, characterized in that, The pump includes a pump body, which comprises, in sequence, an end cover, a motor assembly, a middle shell, an impeller assembly, a pump shaft, and a pump head assembly. The end cover is used to close one end of the motor assembly. The motor assembly is used to drive the impeller assembly to rotate. The middle shell is detachably connected to one end of the end cover. The impeller assembly is connected to the middle shell and includes an impeller body, a connecting cylinder, and several blades. The impeller body is disc-shaped. The connecting cylinder is coaxially fixed to one side of the impeller body. The blades have an arc-shaped structure and are evenly distributed circumferentially along the side of the impeller body away from the connecting cylinder. The pump shaft passes through the impeller assembly, and both ends of the pump shaft are connected to the middle shell and the pump head assembly, respectively. The pump head assembly is used to form a liquid delivery channel.

2. The high-efficiency synergistic liquid pump according to claim 1, characterized in that, The end cap has an inner cavity, and the bottom of the inner cavity has a first annular groove along the circumference. The inner diameter of the first annular groove is interference-fitted with the outer diameter of the motor assembly to achieve radial positioning of the rear end of the motor assembly.

3. The high-efficiency synergistic liquid pump according to claim 1, characterized in that, The end cap has through-holes at its four corners. A cover plate is provided at the end of the cover mounting hole opposite to the middle shell. The cover plate is used to close the end of the cover mounting hole.

4. The high-efficiency synergistic liquid pump according to claim 1, characterized in that, The motor assembly includes a motor body and a control circuit board; the motor body is connected to the control circuit board; the control circuit board is mounted on the bottom surface of the first annular groove, and external wiring is connected to the control circuit board.

5. The high-efficiency synergistic liquid pump according to claim 1, characterized in that, The two ends of the middle shell form a first connecting end and a second connecting end, respectively. The first connecting end is used to detachably connect to the end cover by screws. The end face of the second connecting end is provided with a sealing groove, and a sealing ring is provided inside the sealing groove. The second connecting end is used to seal and connect with the pump head. The interior of the middle shell is provided with a cylindrical inner cavity for accommodating the impeller assembly. A connecting seat for connecting to the pump shaft is provided at the center of the cylindrical inner cavity.

6. The high-efficiency synergistic liquid pump according to claim 5, characterized in that, The end face of the first connecting end is provided with a second annular groove along the circumference, which is used to achieve radial positioning of the front end of the motor assembly.

7. The high-efficiency synergistic liquid pump according to claim 1, characterized in that, The connecting cylinder has a through hole in the center, and a bushing is provided inside the through hole. The bushing is connected to the pump shaft.

8. The high-efficiency synergistic liquid pump according to claim 1, characterized in that, The number of blades is seven, and the end of each blade near the center of the impeller body has a first chamfer, while the other end away from the center of the impeller body has a second chamfer.

9. The high-efficiency synergistic liquid pump according to claim 1, characterized in that, The pump head assembly includes a pump head housing, an inlet port, and an outlet port. The pump head housing has an internal cavity for accommodating the impeller assembly, and a transmission connection part for cooperating with the pump shaft is located at the center of the cavity. The four corners of the pump head housing have pump head mounting holes for overall installation and fixation of the pump head assembly. Both the inlet port and the outlet port are corrugated pipe fittings. The inlet port is vertically connected to the center of the cavity. The outlet port is connected to the outer peripheral sidewall of the cavity.

10. The high-efficiency synergistic liquid pump according to claim 9, characterized in that, The transmission connection part includes a mounting ring and three support legs; the mounting ring is coaxially arranged with the pump shaft; the three support legs are evenly distributed and connected along the circumference of the mounting ring, and the support legs are connected to the inner wall of the receiving cavity.

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