Pressure-adjustable pipeline pump

Abstract

The utility model provides a pressure-adjustable pipeline pump, and belongs to the technical field of water pumps. The pipeline pump with the adjustable pressure solves the problem that an existing pipeline pump with the adjustable pressure is high in cost and comprises a water pump body, a pump body and a motor are arranged on the water pump body, output ports are formed in the pump body, an impeller assembly is further arranged in the pump body, a mounting shaft hole is formed in the impeller assembly, and a connecting bearing is arranged at the top end of the mounting shaft hole. An end cover is arranged on the pump body, a bolt mounting part is arranged on the end cover, an adjusting bolt is arranged in the bolt mounting part, an extrusion boss is arranged at the tail end of the adjusting bolt, a bearing clamping part is arranged on the extrusion boss, a mechanical seal is arranged on the pump body, and a supporting flat spring is arranged between the mechanical seal and the impeller assembly. And the pressure is adjustable.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pumps, relates to a pipeline pump, and particularly relates to a pipeline pump with adjustable pressure. Background Technique

[0002] A pipeline pump, also known as a booster pump, is a type of single-suction single-stage or multi-stage centrifugal pump. Its structural feature is vertical, with the inlet and outlet on the same straight line and the same diameter, resembling a section of pipeline, thus getting its name.

[0003] In different application scenarios, the types of liquids to be transported, the flow rate, and the pressure requirements of pipeline pumps vary. For example, in the industrial field, pipeline pumps may be used to transport high-viscosity chemical raw materials, and higher pressure is required to overcome the internal resistance of the liquid; while in a building water supply system, pipeline pumps may need to adjust the output pressure according to the floor height and water consumption. Summary of the Invention

[0004] The purpose of the utility model is to provide a manually adjustable pipeline pump with adjustable pressure for the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved by the following technical solutions: A pipeline pump with adjustable pressure, characterized in that it includes a water pump main body, a pump body and a motor are provided on the water pump main body, an output port and an output port are provided on the pump body, and an impeller assembly is further provided in the pump body. An installation shaft hole is provided on the impeller assembly, and a connecting bearing is provided at the top of the installation shaft hole. A end cover is provided on the pump body, a bolt installation part is provided on the end cover, and an adjusting bolt is provided in the bolt installation part. An extrusion boss is provided at the end of the adjusting bolt, and a bearing clamping part is provided on the extrusion boss. A mechanical seal is provided on the pump body, and a supporting flat spring is provided between the mechanical seal and the impeller assembly.

[0006] In the above-mentioned pipeline pump with adjustable pressure, a transmission unit is provided between the pump body and the motor. An output shaft is provided on the transmission unit, and a transmission part is provided on the output shaft. A through keyway is provided on the installation shaft hole.

[0007] In the above-mentioned pipeline pump with adjustable pressure, an installation bracket is provided on the water pump main body, an installation hole is provided on the installation bracket, and a lifting ring is further provided on the installation bracket.

[0008] In the above-mentioned pipeline pump with adjustable pressure, a sealing ring is provided between the end cover and the pump body, and a plurality of locking bolts are provided on the end cover.

[0009] In the above-mentioned pipeline pump with adjustable pressure, a blade installation seat is provided on the impeller assembly, and a plurality of blade groups are evenly distributed in a ring on the blade installation seat. Two pressurizing blades with different radian are provided on the blade group.

[0010] Compared with the prior art, the pressure-adjustable pipeline pump controls the position of the impeller assembly inside the pump body through the adjusting bolt and the supporting flat spring, changes the spatial size of the pressurizing area to change the output water pressure, realizes manual control of water pressure adjustment, and the blade groups of different amplitude groups can increase the output water pressure of the water pump. The transmission unit connects the motor and the pump body to prevent the motor from being burned due to internal water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of the pressure-adjustable pipeline pump.

[0012] Figure 2 is a schematic half-sectional structural diagram of the pressure-adjustable pipeline pump.

[0013] Figure 3 is a schematic structural diagram of the impeller assembly of the pressure-adjustable pipeline pump.

[0014] In the figure, 1. Motor; 2. Water pump main body; 3. Output port; 4. Locking bolt; 5. End cover; 6. Bolt installation part; 7. Adjusting bolt; 8. Input port; 9. Pump body; 10. Hoop; 11. Installation hole; 12. Installation bracket; 13. Supporting flat spring; 14. Installation shaft hole; 15. Impeller assembly; 16. Keyway; 17. Connecting bearing; 18. Bearing clamping part; 19. Extrusion boss; 20. Sealing ring; 21. Mechanical seal; 22. Transmission unit; 23. Output shaft; 24. Transmission part; 25. Blade mounting seat; 26. Pressurizing blade; 27. Blade group. DETAILED DESCRIPTION OF THE INVENTION

[0015] The following are specific embodiments of the present invention in combination with the accompanying drawings, and the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0016] As Figure 1 、 2 shown in FIG. 3, the pressure-adjustable pipeline pump includes a water pump main body 2, a pump body 9 and a motor 1 are provided on the water pump main body 2, an output port 3 and an input port 8 are provided on the pump body 9, and an impeller assembly 15 is further provided inside the pump body 9. An installation shaft hole 14 is provided on the impeller assembly 15, and a connecting bearing 17 is provided at the top of the installation shaft hole 14. An end cover 5 is provided on the pump body 9, a bolt installation part 6 is provided on the end cover 5, and an adjusting bolt 7 is provided inside the bolt installation part 6. An extrusion boss 19 is provided at the end of the adjusting bolt 7, and a bearing clamping part 18 is provided on the extrusion boss 19. A mechanical seal 21 is provided on the pump body 9, and a supporting flat spring 13 is provided between the mechanical seal 21 and the impeller assembly 15. During use, the position of the impeller assembly 15 inside the pump body 9 is indirectly controlled by rotating the adjusting bolt 7 to control the position of the bolt. When the impeller assembly 15 is close to the water inlet, the amount of water participating in pressurization decreases, thereby reducing the water pressure.

[0017] Preferably, a transmission unit 22 is provided between the pump body 9 and the motor 1. An output shaft 23 is provided on the transmission unit 22, and a transmission portion 24 is provided on the output shaft 23. A through keyway 16 is provided on the mounting shaft hole 14, and the impeller assembly 15 reciprocates on the transmission shaft.

[0018] Preferably, a mounting bracket 12 is provided on the water pump main body 2, and a mounting hole 11 is provided on the mounting bracket 12. A lifting ring 10 is also provided on the mounting bracket 12.

[0019] Preferably, a sealing ring 20 is provided between the end cover 5 and the pump body 9, and a plurality of locking bolts 4 are provided on the end cover 5.

[0020] Preferably, a blade mounting seat 25 is provided on the impeller assembly 15, and a plurality of blade groups 27 are annularly and evenly distributed on the blade mounting seat 25. Two pressurizing blades 26 with different radian are provided on the blade group 27. The blade mounting seat 25 enables the water liquid on the back of the impeller assembly 15 not to participate in pressurization, helping to control the water pressure regulation.

[0021] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0022] Although terms such as motor 1, water pump main body 2, output port 3, locking bolt 4, end cover 5, bolt mounting portion 6, adjusting bolt 7, input port 8, pump body 9, lifting ring 10, mounting hole 11, mounting bracket 12, support flat spring 13, mounting shaft hole 14, impeller assembly 15, keyway 16, connecting bearing 17, bearing clamping portion 18, extrusion boss 19, sealing ring 20, mechanical seal 21, transmission unit 22, output shaft 23, transmission portion 24, blade mounting seat 25, pressurizing blade 26, blade group 27 are used more in this article, the possibility of using other terms is not excluded. Using these terms is only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A pressure-adjustable pipeline pump, characterized in that: The invention comprises a water pump body (2), wherein a pump body (9) and a motor (1) are provided on the water pump body (2), an output port (3) and an output port (3) are provided on the pump body (9), and an impeller assembly (15) is also provided in the pump body (9), wherein a mounting shaft hole (14) is provided on the impeller assembly (15), and a connecting bearing (17) is provided at the top end of the mounting shaft hole (14), wherein an end cover (5) is provided on the pump body (9), a bolt mounting portion (6) is provided on the end cover (5), and an adjusting bolt (7) is provided in the bolt mounting portion (6), an extrusion boss (19) is provided at the end of the adjusting bolt (7), and a bearing clamping portion (18) is provided on the extrusion boss (19), and a machine seal (21) is provided on the pump body (9), and a supporting flat spring (13) is provided between the machine seal (21) and the impeller assembly (15).

2. A pressure-adjustable pipeline pump according to claim 1, characterized in that: A transmission unit (22) is provided between the pump body (9) and the motor (1), an output shaft (23) is provided on the transmission unit (22), a transmission portion (24) is provided on the output shaft (23), and a keyway (16) is provided through the mounting shaft hole (14).

3. The pressure-adjustable pipeline pump according to claim 1, characterized in that: The water pump body (2) is provided with a mounting bracket (12), and the mounting bracket (12) is provided with a mounting hole (11), and the mounting bracket (12) is also provided with a lifting ring (10).

4. The pressure-adjustable pipeline pump according to claim 1, characterized in that: A sealing ring (20) is provided between the end cover (5) and the pump body (9), and a plurality of locking bolts (4) are provided on the end cover (5).

5. The pressure-adjustable pipeline pump according to claim 1, characterized in that: A blade mounting seat (25) is provided on the impeller assembly (15), and a plurality of blade groups (27) are evenly distributed in an annular shape on the blade mounting seat (25), and two pressurizing blades (26) with different curvatures are provided on the blade group (27).

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