High-flow strong self-priming pump

By designing a high-flow-rate, high-power self-priming pump, and combining it with a vacuum pump and shock-absorbing components, the problems of self-priming effect and shock absorption of the self-priming pump were solved, achieving efficient self-priming and stable operation.

CN224149793UActive Publication Date: 2026-04-21JIANGSU CHANGKAI MASCH EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU CHANGKAI MASCH EQUIP CO LTD
Filing Date
2025-05-07
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing self-priming pumps have poor self-priming performance and inadequate shock absorption, resulting in slow start-up, severe vibration, and reduced service life and operational stability.

Method used

A high-flow-rate, self-priming pump was designed, comprising a mounting plate, pump body, suction end, discharge end, vacuum pump, liquid level sensor, fixed spring, and damper. The vacuum pump generates negative pressure self-priming fluid, and the fixed spring and damper are used to achieve shock absorption and buffering.

Benefits of technology

It improves the self-priming effect, enhances the fluid self-priming efficiency during the start-up phase, reduces equipment vibration and noise, and extends service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-flow strong self-priming pump, which is applied to the field of self-priming pumps and comprises a mounting plate, a pump body is mounted at the top of the mounting plate, a liquid suction end and a liquid discharge end are mounted on one side and the top of the mounting plate respectively, and a fixing frame is bolted on the front side of the pump body. A controller and a vacuum pump are bolted to the interior and the top of the fixing frame correspondingly, the air suction end of the vacuum pump is fixedly sleeved with a connecting pipe communicating with the liquid suction end, a liquid level sensor is connected to the surface of the liquid suction end in a penetrating and threaded mode, a base is arranged at the bottom of the mounting plate, and a fixing plate is welded to the interior of the base; and a fixing spring is mounted between the top of the fixing plate and the mounting plate. The self-suction device has the advantages of being good in self-suction effect, simple and convenient to operate, capable of enhancing the self-suction efficiency of fluid in the starting stage, good in damping and buffering effect, capable of reducing shaking and noise generated during operation of equipment, capable of prolonging the service life of the equipment and high in practicability.
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Description

Technical Field

[0001] This utility model relates to the field of self-priming pumps, and in particular to a high-flow-rate, high-power self-priming pump. Background Technology

[0002] Currently, Chinese utility model patent CN214118549U discloses a self-priming pump. While this self-priming pump, when used with a gland, can improve the overall sealing performance, other problems still exist during use. These include poor self-priming performance; after the pipe is installed, there is a distance between the end of the pipe and the liquid, resulting in a longer time for the pump to expel air from the pipe during self-priming and a slow start-up; and poor shock absorption. During operation, the rotation of the internal impeller and the pressure generated by the fluid flow cause vibrations in the pump body. Under vibration, the bottom may shake against the ground, leading to loose connections and reduced service life due to collisions caused by the shaking. To address these problems, we propose a high-flow-rate, high-power self-priming pump. Utility Model Content

[0003] The purpose of this invention is to provide a high-flow-rate, strong self-priming pump that solves the problems of poor self-priming effect and poor shock absorption and buffering effect of existing self-priming pumps.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a high-flow-rate, strong self-priming pump, including a mounting plate, a pump body mounted on the top of the mounting plate, a liquid suction end and a liquid discharge end mounted on one side and the top of the mounting plate respectively, a fixing frame bolted to the front of the pump body, a controller and a vacuum pump bolted to the inside and top of the fixing frame respectively, a connecting pipe communicating with the liquid suction end fixedly sleeved on the suction end of the vacuum pump, a liquid level sensor threaded through the surface of the liquid suction end, a base provided at the bottom of the mounting plate, a fixing plate welded inside the base, a fixing spring installed between the top of the fixing plate and the mounting plate, and a damper installed between the top of the fixing plate and the mounting plate.

[0005] The above technical solution achieves good self-priming effect, is simple and convenient to operate, enhances the self-priming efficiency of fluid during the start-up phase, and also achieves good shock absorption and buffering effect, reducing shaking and noise generated during equipment operation, extending the service life of the equipment, and is highly practical.

[0006] The present invention is further configured such that a lifting ring is welded to the top of the pump body.

[0007] By adopting the above technical solution, the lifting rings can be easily connected to ropes, making it easy to move and transport them with the help of lifting equipment.

[0008] The present invention is further configured such that a valve is installed on the surface of the connecting pipe.

[0009] By adopting the above technical solution and by setting the valve, it is possible to prevent the fluid in the suction end from flowing upward into the connecting pipe.

[0010] The present invention is further configured such that a dustproof net is attached to the top of the vacuum pump and above the outlet end.

[0011] By adopting the above technical solution and setting up a dustproof net, a dustproof effect can be achieved, preventing dust in the air from entering the vacuum pump from the outlet.

[0012] The present invention is further configured such that: a connecting plate is welded to both the front and back of the base, and the connecting plate has mounting holes inside.

[0013] By adopting the above technical solution, the connection plate and mounting holes make it easy for personnel to fix the base with screws.

[0014] The present invention is further configured such that the surfaces of the mounting plate, the base and the fixing plate are all coated with anti-corrosion coating.

[0015] By adopting the above technical solution and applying anti-corrosion coating, the anti-corrosion and moisture-proof effects of the mounting plate, base, and fixing plate can be improved.

[0016] The present invention is further configured such that the fixing spring is made of carbon spring steel.

[0017] Using the above technical solution, the fixed spring has the characteristics of excellent mechanical properties, good anti-elasticity, low temperature resistance and corrosion resistance.

[0018] In summary, this utility model has the following beneficial effects:

[0019] 1. This utility model connects the pipeline to the suction end and the discharge end. After the pipeline is connected, the pump body and the vacuum pump are started simultaneously. After the vacuum pump is started, it creates a vacuum and negative pressure in the pipeline. After the pump body is started, it draws the fluid into the suction end with the assistance of the vacuum pump. After the liquid level sensor detects the fluid, it feeds back to the controller to control the vacuum pump to shut down. Finally, the valve is closed. This method can achieve good self-priming effect, is simple and convenient to operate, and enhances the self-priming efficiency of the fluid during the start-up phase.

[0020] 2. This utility model utilizes the pressure generated during equipment operation to cause the mounting plate to vibrate. When vibrating, the mounting plate moves downward into the base and presses against the fixed spring and damper. When compressed, the fixed spring and damper contract and store energy. Since the fixed spring has a spring function, it absorbs and cancels the force energy when it contracts and stores energy, thus achieving a good shock absorption and buffering effect, reducing the shaking and noise generated during equipment operation, extending the service life of the equipment, and making it highly practical. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural view of the present invention;

[0022] Figure 2 This is a partial sectional view of the front of the structure of this utility model;

[0023] Figure 3 This is a utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0024] Reference numerals in the attached drawings: 1. Mounting plate; 2. Pump body; 3. Suction end; 4. Discharge end; 5. Fixing frame; 6. Controller; 7. Vacuum pump; 8. Connecting pipe; 9. Liquid level sensor; 10. Base; 11. Fixing plate; 12. Fixing spring; 13. Damper; 14. Lifting ring; 15. Valve; 16. Dustproof net; 17. Connecting plate. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Example 1:

[0027] refer to Figure 1 and Figure 2 A high-flow-rate, self-priming pump includes a mounting plate 1, a pump body 2 mounted on top of the mounting plate 1, a suction end 3 and a discharge end 4 mounted on one side and top of the mounting plate 1 respectively, a fixing frame 5 bolted to the front of the pump body 2, a controller 6 and a vacuum pump 7 bolted to the inside and top of the fixing frame 5 respectively, a connecting pipe 8 connected to the suction end 3 fixedly sleeved at the suction end of the vacuum pump 7, and a liquid level sensor 9 threaded through the surface of the suction end 3. The pump body 2 and vacuum pump 7 are started simultaneously after the pipes are connected to the suction end 3 and the discharge end 4. After the pipes are connected, the vacuum pump 7 creates a vacuum and negative pressure in the pipes. With the assistance of the vacuum pump 7, the pump body 2 draws fluid into the suction end 3. The liquid level sensor 9 detects the fluid and sends feedback to the controller 6 to shut down the vacuum pump 7. Finally, the valve 15 is closed. This pump achieves good self-priming performance, is simple and convenient to operate, and enhances the self-priming efficiency of the fluid during the start-up phase.

[0028] refer to Figure 1 and Figure 2The top of the pump body 2 is welded with a lifting ring 14. The lifting ring 14 makes it easy to connect to ropes and move and transport it with the help of lifting equipment.

[0029] refer to Figure 1 and Figure 2 A valve 15 is installed on the surface of the connecting pipe 8. The valve 15 is designed to prevent the fluid in the suction end 3 from flowing upward into the connecting pipe 8.

[0030] refer to Figure 1 A dustproof net 16 is attached to the top of the vacuum pump 7 and above the outlet end. The dustproof net 16 can prevent dust from entering the vacuum pump 7 from the outlet end.

[0031] Brief description of the usage process: First, connect the pipeline to the suction end 3 and the discharge end 4. After the pipeline is connected, start the pump body 2 and the vacuum pump 7 at the same time. After the vacuum pump 7 is started, it creates a vacuum in the pipeline and forms a negative pressure. After the pump body 2 is started, it draws the fluid into the suction end 3 with the assistance of the vacuum pump 7. After the liquid level sensor 9 detects the fluid, it will feed back to the controller 6 to control the vacuum pump 7 to shut down. Finally, close the valve 15.

[0032] Example 2:

[0033] refer to Figure 1 , Figure 2 and Figure 3 A high-flow-rate, self-priming pump is described. A base 10 is located at the bottom of a mounting plate 1. A fixing plate 11 is welded inside the base 10. A fixing spring 12 is installed between the top of the fixing plate 11 and the mounting plate 1. A damper 13 is also installed between the top of the fixing plate 11 and the mounting plate 1. The pressure generated during equipment operation causes the mounting plate 1 to vibrate. During vibration, the mounting plate 1 moves downwards into the base 10 and presses against the fixing spring 12 and the damper 13. The fixing spring 12 and the damper 13 contract and store energy under pressure. Because the fixing spring 12 is a spring, it absorbs and cancels out force energy when it contracts and stores energy, achieving good shock absorption and buffering effects, reducing shaking and noise during equipment operation, extending the service life of the equipment, and demonstrating high practicality.

[0034] refer to Figure 1 The base 10 has connecting plates 17 welded on both the front and back sides. The connecting plates 17 have mounting holes inside. The connecting plates 17 and the mounting holes make it easy for personnel to fix the base 10 with screws.

[0035] refer to Figure 1 , Figure 2 and Figure 3The surfaces of mounting plate 1, base 10 and fixing plate 11 are all coated with anti-corrosion paint. The anti-corrosion and moisture-proof effects of the surfaces of mounting plate 1, base 10 and fixing plate 11 can be improved by the application of anti-corrosion paint.

[0036] refer to Figure 2 and Figure 3 The fixed spring 12 is made of carbon spring steel and has excellent mechanical properties, good spring damping performance, low temperature resistance and corrosion resistance.

[0037] Brief description of the usage process: The pressure generated during the operation of the equipment will cause the mounting plate 1 to vibrate. When the mounting plate 1 vibrates, it will move downward into the base 10 and press the fixed spring 12 and the damper 13. When the fixed spring 12 and the damper 13 are compressed, they will contract and store energy. Since the fixed spring 12 has a spring, it will absorb and cancel the force energy when it contracts and stores energy.

[0038] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A large flow strong self-priming pump comprising a mounting plate (1), characterized in that: A pump body (2) is installed on the top of the mounting plate (1). A liquid suction end (3) and a liquid discharge end (4) are installed on one side and the top of the mounting plate (1), respectively. A fixing frame (5) is bolted to the front of the pump body (2). A controller (6) and a vacuum pump (7) are bolted to the inside and the top of the fixing frame (5), respectively. A connecting pipe (8) communicating with the liquid suction end (3) is fixedly sleeved on the suction end of the vacuum pump (7). A liquid level sensor (9) is threaded through the surface of the liquid suction end (3). A base (10) is provided at the bottom of the mounting plate (1). A fixing plate (11) is welded inside the base (10). A fixing spring (12) is installed between the top of the fixing plate (11) and the mounting plate (1). A damper (13) is installed between the top of the fixing plate (11) and the mounting plate (1).

2. The high-flow-rate, strong self-priming pump according to claim 1, characterized in that, A lifting ring (14) is welded to the top of the pump body (2).

3. A large flow strong self-priming pump according to claim 1, characterized in that, A valve (15) is installed on the surface of the connecting pipe (8).

4. A large flow strong self-priming pump according to claim 1, characterized in that, A dustproof net (16) is attached to the top of the vacuum pump (7) and above the outlet end.

5. A large flow, strong self-priming pump according to claim 1, characterized in that, The base (10) has connecting plates (17) welded to both the front and back sides, and the connecting plates (17) have mounting holes inside.

6. A large flow, strong self-priming pump according to claim 1, characterized in that, The surfaces of the mounting plate (1), base (10) and fixing plate (11) are all coated with anti-corrosion paint.

7. A large flow, strong self-priming pump according to claim 1, characterized in that, The fixed spring (12) is made of carbon spring steel.

Citation Information

Patent Citations

  • Self-priming pump

    CN214118549U