Leakage-proof high energy efficiency self-priming pump

Abstract

The utility model belongs to self -priming pump technical field especially relates to a high energy -efficient self -priming pump of preventing leakage, including base, the top fixedly connected with motor of base, one side of motor is provided with the pump body, the output fixedly connected with pump shaft of motor, the outer wall fixedly connected with the impeller of pump shaft, the outer wall of one end of impeller in the pump body is provided with liquid inlet pipeline, the connecting part of liquid inlet pipeline and pump body is provided with sealing washer, the top of pump body is provided with liquid outlet pipeline, and through setting sealing block, the staff overcomes the spring elasticity and drives the sliding of push board, and the sealing block is driven away from the sealing seat through the connecting rod of push board sliding, and the liquid in the liquid storage chamber is discharged from the liquid discharge port, avoids the corrosion or incrustation of residual liquid, then, loosens the push board, makes the sealing ring of sealing block outer wall drive the sealing seat closely with the spring, realizes the sealing operation to the liquid discharge port, avoids the leakage of liquid discharge port.

Description

Technical Field

[0001] This utility model belongs to the field of self-priming pump technology, and in particular relates to a high-efficiency self-priming pump with leak prevention. Background Technology

[0002] A self-priming pump is a type of self-priming centrifugal pump. The working principle of a self-priming pump is that the pump casing is filled with water before starting. After starting, the impeller rotates at high speed, causing the water in the impeller channels to flow towards the volute. At this time, a vacuum is formed at the inlet, causing the inlet check valve to open, allowing air from the suction pipe to enter the pump and reach the outer edge through the impeller channels.

[0003] For example, patent CN221054014U discloses a self-priming pump, including a mounting base. A self-priming pump body is fixedly connected to the top of the mounting base. One end of the self-priming pump body is provided with an inlet pipe, and the other end is provided with an outlet pipe. Support rods are fixedly connected to the four ends of the mounting base. A support seat is provided at the lower end of the support rods, and a base is fixedly connected to the bottom of the support seat. By setting the support rods, support seat, and damping spring at the bottom, the self-priming pump can be shock-absorbing and buffered, preventing the self-priming pump from vibrating and damaging internal parts during operation, and preventing excessive noise. Furthermore, by setting a buffer ball in the upper middle of the base, it can work with the shock-absorbing components to buffer, ensuring the shock-absorbing performance of the entire device.

[0004] Existing high-efficiency self-priming pumps typically use gaskets or ball valves to seal their discharge ports, resulting in poor sealing and frequent leaks that require frequent gasket replacements. Therefore, we propose a leak-proof high-efficiency self-priming pump. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a high-efficiency self-priming pump that prevents leakage and avoids the problem of poor sealing at the discharge port.

[0006] In view of this, the present invention provides a high-efficiency self-priming pump with leak prevention, including a base, a motor fixedly connected to the top of the base, a pump body provided on one side of the motor, a pump shaft fixedly connected to the output end of the motor, an impeller fixedly connected to the outer wall of the pump shaft, an inlet pipe provided at one end of the impeller on the outer wall of the pump body, a sealing gasket provided at the connection between the inlet pipe and the pump body, an outlet pipe provided at the top of the pump body, a storage chamber provided below the impeller, a drain port fixedly connected to the bottom of the storage chamber, a sealing seat fixedly connected to the inner wall of the drain port, a sealing block attached to the top of the sealing seat, a sealing ring provided at the connection between the sealing block and the sealing seat, a connecting rod fixedly connected to the bottom of the sealing block, a push plate fixedly connected to the bottom of the connecting rod, and a spring provided at the connection between the push plate and the sealing block.

[0007] Based on the above structure, the operator overcomes the spring force to drive the push plate to slide. The sliding of the push plate drives the sealing block away from the sealing seat through the connecting rod, so that the liquid in the storage chamber can be discharged from the drain port, avoiding residual liquid corrosion or scaling. Then, the push plate is released, so that the spring drives the sealing ring on the outer wall of the sealing block to fit tightly with the sealing seat through its own elastic force, realizing the sealing operation of the drain port and preventing leakage from the drain port.

[0008] Preferably, the sealing gasket has a cross-shaped cross section. In this embodiment, this helps to increase the sealing area between the inlet pipe and the pump body, thus preventing leakage from the inlet pipe.

[0009] Preferably, the sealing block is shaped like an inverted frustum, and the connection between the sealing seat and the sealing block is inclined. In this embodiment, by setting the sealing block in the shape of an inverted frustum, it is beneficial to improve the sealing performance of the sealing block and the sealing seat.

[0010] Preferably, the sealing block forms a pressing structure with the sealing seat through the spring and the push plate. In this embodiment, the spring can use its own elastic force to drive the sealing ring on the outer wall of the sealing block to fit tightly with the sealing seat, thereby achieving the sealing operation of the drain port and preventing leakage from the drain port.

[0011] Preferably, the central axis of the connecting rod coincides with the central axis of the discharge port, and the push plate is cross-shaped. In this embodiment, the connecting rod is used to avoid causing the sealing block and sealing seat to shift, which would reduce the sealing performance of the sealing block and sealing seat.

[0012] Preferably, a cooling chamber is fixedly connected to the side wall of the pump body. A cooling pipe is provided on the inner wall of the cooling chamber and sleeved on the outer wall of the pump shaft. A cooling interface is fixedly connected to one end of the cooling pipe. A cooling water tank fixedly connected to the other end of the cooling interface is connected to the cooling water tank. A water pump is provided at the connection between the cooling water tank and the cooling interface. In this embodiment, when the bearing of the pump shaft heats up and the temperature becomes too high, the water pump in the cooling water tank will work to inject coolant into the cooling pipe in the cooling chamber through the cooling interface to quickly cool the pump shaft and prevent the shaft sealing from decreasing due to excessively high temperature, which would affect the self-priming function of the self-priming pump.

[0013] Preferably, the cooling pipe is spiral in shape. In this embodiment, this helps to increase the contact area between the cooling pipe and the pump shaft, thereby improving the cooling efficiency of the pump shaft.

[0014] The beneficial effects of this utility model are:

[0015] 1. This leak-proof, high-efficiency self-priming pump, by setting up a cooling pipe, when the bearing of the pump shaft heats up and causes the temperature to become too high, the water pump in the cooling water tank works to inject coolant into the cooling pipe in the cooling chamber through the cooling interface, so as to quickly cool the pump shaft and avoid the shaft sealing performance from being too high, which would affect the self-priming function of the self-priming pump.

[0016] 2. This leak-proof, high-efficiency self-priming pump, by setting a sealing block, allows the operator to overcome the spring force to drive the push plate to slide. The sliding of the push plate, through the connecting rod, causes the sealing block to move away from the sealing seat, facilitating the discharge of liquid from the storage chamber through the drain port and preventing residual liquid from corroding or scaling. Then, the push plate is released, allowing the spring to use its own elasticity to drive the sealing ring on the outer wall of the sealing block to fit tightly against the sealing seat, achieving a sealing operation at the drain port and preventing leakage from the drain port. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the pump body of this utility model;

[0019] Figure 3 This is a cross-sectional view of the discharge port of this utility model;

[0020] Figure 4 This is a cross-sectional view of the cooling chamber of this utility model.

[0021] The markings in the diagram are as follows:

[0022] 1. Base; 2. Motor; 3. Pump body; 4. Pump shaft; 5. Impeller; 6. Inlet pipe; 601. Sealing gasket; 7. Outlet pipe; 8. Storage chamber; 9. Drain port; 10. Sealing seat; 11. Sealing block; 12. Sealing ring; 13. Connecting rod; 14. Push plate; 15. Spring; 16. Cooling chamber; 17. Cooling pipe; 18. Cooling interface; 19. Cooling water tank; 1901. Water pump. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.

[0024] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0025] This application discloses a leak-proof, high-efficiency self-priming pump, including a base 1. A motor 2 is fixedly connected to the top of the base 1. A pump body 3 is provided on one side of the motor 2. A pump shaft 4 is fixedly connected to the output end of the motor 2. An impeller 5 is fixedly connected to the outer wall of the pump shaft 4. An inlet pipe 6 is provided at one end of the impeller 5 on the outer wall of the pump body 3. A sealing gasket 601 is provided at the connection between the inlet pipe 6 and the pump body 3. An outlet pipe 7 is provided at the top of the pump body 3. A storage chamber 8 is provided below the impeller 5. A drain port 9 is fixedly connected to the bottom of the storage chamber 8. A sealing seat 10 is fixedly connected to the inner wall of the drain port 9. A sealing block 11 is attached to the top of the sealing seat 10. A sealing ring 12 is provided at the connection between the sealing block 11 and the sealing seat 10. A connecting rod 13 is fixedly connected to the bottom of the sealing block 11. A push plate 14 is fixedly connected to the bottom of the connecting rod 13. A spring 15 is provided at the connection between the push plate 14 and the sealing block 11.

[0026] Based on the above structure, the operator overcomes the elastic force of the spring 15 to drive the push plate 14 to slide. The sliding of the push plate 14 drives the sealing block 11 away from the sealing seat 10 through the connecting rod 13, so that the liquid in the liquid storage chamber 8 can be discharged from the drain port 9, avoiding residual liquid corrosion or scaling. Then, the push plate 14 is released, so that the spring 15 drives the sealing ring 12 on the outer wall of the sealing block 11 to fit tightly with the sealing seat 10 through its own elastic force, so as to achieve the sealing operation of the drain port 9 and prevent leakage from the drain port 9.

[0027] In one embodiment, the sealing gasket 601 has a cross-shaped cross section.

[0028] In this embodiment, it is beneficial to increase the sealing area between the liquid inlet pipe 6 and the pump body 3, and to prevent leakage from the liquid inlet pipe 6.

[0029] In one embodiment, the sealing block 11 is shaped like an inverted frustum, and the connection between the sealing seat 10 and the sealing block 11 is inclined.

[0030] In this embodiment, by setting the sealing block 11 in the shape of an inverted frustum, it is beneficial to increase the contact area between the sealing block 11 and the sealing seat 10, thereby improving the sealing performance.

[0031] In one embodiment, the sealing block 11 forms a pressing structure with the sealing seat 10 via the spring 15 and the push plate 14.

[0032] In this embodiment, the spring 15 can use its own elastic force to drive the sealing ring 12 on the outer wall of the sealing block 11 to fit tightly with the sealing seat 10, thereby achieving the sealing operation of the drain port 9 and preventing leakage from the drain port 9.

[0033] In one embodiment, the central axis of the connecting rod 13 coincides with the central axis of the discharge port 9, and the push plate 14 is cross-shaped.

[0034] In this embodiment, the connecting rod 13 is used to prevent the sealing block 11 from shifting away from the sealing seat 10, which would reduce the sealing performance of the sealing block 11 and the sealing seat 10.

[0035] In one embodiment, a cooling chamber 16 is fixedly connected to the side wall of the pump body 3. A cooling pipe 17 is provided on the inner wall of the cooling chamber 16 and sleeved on the outer wall of the pump shaft 4. A cooling interface 18 is fixedly connected to one end of the cooling pipe 17. A cooling water tank 19 is fixedly connected to one end of the cooling interface 18 and is connected to the cooling water tank 19 which is fixedly connected to the side wall of the pump body 3. A water pump 1901 is provided at the connection between the cooling water tank 19 and the cooling interface 18.

[0036] In this embodiment, when the bearing of the pump shaft 4 heats up and causes the temperature to be too high, the water pump 1901 in the cooling water tank 19 operates to inject coolant into the cooling pipe 17 in the cooling chamber 16 through the cooling interface 18 to perform a rapid cooling operation on the pump shaft 4, so as to avoid the shaft sealing performance from being too high and affecting the self-priming function of the self-priming pump.

[0037] In one embodiment, the cooling pipe 17 is spiral in shape.

[0038] In this embodiment, it is beneficial to increase the contact area between the cooling pipe 17 and the pump shaft 4, thereby improving the cooling efficiency of the pump shaft 4.

[0039] In this embodiment, the high-efficiency self-priming pump with leak prevention works as follows: First, the motor 2 drives the pump shaft 4 inside the pump body 3 to rotate. The rotation of the pump shaft 4 drives the impeller 5 to rotate. The rotation of the impeller 5 draws in the liquid stored in the storage chamber 8 and the air in the inlet pipe 6, and they are completely mixed in the impeller 5. Under the action of centrifugal force, the air in the inlet pipe 6 is continuously reduced until all the air is drawn in, completing the self-priming process. The self-priming pump then starts normal operation, realizing the high-efficiency self-priming operation of the self-priming pump.

[0040] Next, when the bearing of the pump shaft 4 heats up and causes the temperature to be too high, the water pump in the cooling water tank 19 will work to inject coolant into the cooling pipe 17 in the cooling chamber 16 through the cooling interface 18 to quickly cool the pump shaft 4, so as to avoid the shaft sealing performance from being too high and affecting the self-priming function of the self-priming pump.

[0041] Finally, the liquid in the storage chamber 8 needs to be drained, and the pump body 3 needs to be cleaned. The operator overcomes the elastic force of the spring 15 to drive the push plate 14 to slide. The sliding of the push plate 14 drives the sealing block 11 away from the sealing seat 10 through the connecting rod 13, so that the liquid in the storage chamber 8 can be discharged from the drain port 9, avoiding residual liquid corrosion or scaling. Then, the push plate 14 is released, so that the spring 15 drives the sealing ring 12 on the outer wall of the sealing block 11 to fit tightly with the sealing seat 10 through its own elastic force, so as to achieve the sealing operation of the drain port 9 and prevent leakage from the drain port 9.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A leak-proof, high-efficiency self-priming pump, characterized in that, The system includes a base (1), a motor (2) fixedly connected to the top of the base (1), a pump body (3) provided on one side of the motor (2), a pump shaft (4) fixedly connected to the output end of the motor (2), an impeller (5) fixedly connected to the outer wall of the pump shaft (4), an inlet pipe (6) provided at one end of the impeller (5) on the outer wall of the pump body (3), a sealing gasket (601) provided at the connection between the inlet pipe (6) and the pump body (3), an outlet pipe (7) provided at the top of the pump body (3), and a [missing information - likely a device or structure] provided below the impeller (5). A liquid storage chamber (8) is fixedly connected to a liquid outlet (9) at its bottom end. A sealing seat (10) is fixedly connected to the inner wall of the liquid outlet (9). A sealing block (11) is attached to the top of the sealing seat (10). A sealing ring (12) is provided at the connection between the sealing block (11) and the sealing seat (10). A connecting rod (13) is fixedly connected to the bottom end of the sealing block (11). A push plate (14) is fixedly connected to the bottom end of the connecting rod (13). A spring (15) is provided at the connection between the push plate (14) and the sealing block (11).

2. The leak-proof, high-efficiency self-priming pump according to claim 1, characterized in that: The sealing gasket (601) has a cross-shaped cross section.

3. The leak-proof, high-efficiency self-priming pump according to claim 1, characterized in that: The sealing block (11) is shaped like an inverted frustum, and the connection between the sealing seat (10) and the sealing block (11) is inclined.

4. The leak-proof, high-efficiency self-priming pump according to claim 1, characterized in that: The sealing block (11) forms a pressing structure with the sealing seat (10) through the spring (15) and the push plate (14).

5. The leak-proof, high-efficiency self-priming pump according to claim 1, characterized in that: The central axis of the connecting rod (13) coincides with the central axis of the discharge port (9), and the push plate (14) is cross-shaped.

6. The leak-proof, high-efficiency self-priming pump according to claim 1, characterized in that: A cooling chamber (16) is fixedly connected to the side wall of the pump body (3). A cooling pipe (17) is provided on the inner wall of the cooling chamber (16) and sleeved on the outer wall of the pump shaft (4). A cooling interface (18) is fixedly connected to one end of the cooling pipe (17). A cooling water tank (19) is fixedly connected to one end of the cooling interface (18) and is connected to the side wall of the pump body (3). A water pump (1901) is provided at the connection between the cooling water tank (19) and the cooling interface (18).

7. The leak-proof, high-efficiency self-priming pump according to claim 6, characterized in that: The cooling pipe (17) is spiral in shape.

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