Water pump having high sealing performance

Abstract

A water pump having high sealing performance, comprising: a water pump body (1). An impeller (2) is arranged in the water pump body (1); a water inlet for water inflow and a water outlet for water outflow are formed in the water pump body (1); a driving mechanism (3) is arranged at the rear end of the water pump body (1); a motor shaft of the driving mechanism (3) extends into the water pump body (1) to drive the impeller (2) to work; the water pump body (1) is composed of a water pump left outer shell (4), a water pump right outer shell (5), and a water pump inner casing (6); a water inlet part (7) is arranged at the position of the water pump body (1) opposite to the water inlet; a water outlet part (8) is arranged on the water pump body (1); and a buffering device (9) is arranged in the water inlet part (7). The water pump has high sealing performance, and solves the problems of noise and vibration caused by water flow hitting a volute.

Description

A highly sealed water pump Technical Field

[0001] The utility model belongs to the technical field of water pumps and relates to a water pump, in particular to a high-sealing water pump. Background Art

[0002] A water pump is a machine that transports liquids or increases the pressure of liquids. It transfers the mechanical energy of the prime mover or other external energy to the liquid, increasing the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali liquids, emulsions, suspensions and liquid metals. It can also transport liquids, gas mixtures and liquids containing suspended solids.

[0003] The water flow sucked in by the impeller is collected by the volute, pressurized, and ejected from the volute outlet. Due to the hydraulic pressure of the water flow, it will constantly hit the volute, causing not only vibration but also noise. The vibrating volute also causes the pump shaft to vibrate, causing it to rotate in a vibrating state, reducing its lifespan and further generating the noise of rotational vibration. Summary of the Invention

[0004] The purpose of the utility model is to address the above-mentioned problems existing in the prior art and to provide a water pump with a reasonable design, simple structure and high sealing performance.

[0005] The objectives of the utility model can be achieved through the following technical solutions: a highly sealed water pump, comprising a water pump body, an impeller arranged in the water pump body, a water inlet for water intake and a water outlet for water discharge, a driving mechanism arranged at the rear end of the water pump body, the motor shaft of the driving mechanism extending into the water pump body to drive the impeller to work, and characterized in that the water pump body consists of a left outer shell of the water pump, a right outer shell of the water pump and an inner shell of the water pump, the left outer shell of the water pump and the right outer shell of the water pump are fixedly connected by fixing bolts, the water pump inner shell is arranged between the left outer shell of the water pump and the right outer shell of the water pump, a water inlet is arranged on the water pump body at a position relative to the water inlet, a water outlet is arranged on the water pump body at a position relative to the water outlet, and a buffer device for water flow buffering is arranged in the water inlet.

[0006] In the above-mentioned high-sealing water pump, a positioning portion for positioning the buffer device is convexly provided in the water inlet portion, and the buffer device includes a buffer plate, a connecting portion, a sliding portion and a reset spring. The buffer plate, the connecting portion and the sliding portion are integrally formed. The positioning portion is provided with a sliding groove for the sliding portion to slide, and the sliding portion is provided with a plurality of water holes for passing water. The reset spring is arranged in the sliding groove and is located at the bottom end of the sliding portion.

[0007] In the above-mentioned high-sealing water pump, a filter assembly is further provided in the water inlet portion, and the filter assembly is fixedly mounted on the positioning portion by fixing bolts.

[0008] In the above-mentioned high-sealing water pump, the water inlet is fixedly connected to the water pump body by fixing bolts, and the water outlet is fixedly connected to the water pump body by fixing bolts.

[0009] Compared with the existing technology, this high-sealing water pump has a split water pump body, which not only facilitates internal maintenance but also improves the sealing of the water pump body. A buffer device is provided on the water pump body to buffer the water flowing into the water pump body, preventing excessive water pressure from damaging the impeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] FIG1 is a schematic structural diagram of the present utility model.

[0011] FIG2 is a schematic cross-sectional view of the present invention.

[0012] In the figure, 1. Water pump body; 2. Impeller; 3. Driving mechanism; 4. Left outer shell of water pump; 5. Right outer shell of water pump; 6. Inner shell of water pump; 7. Water inlet; 8. Water outlet; 9. Buffer device; 10. Positioning part; 11. Buffer plate; 12. Connecting part; 13. Sliding part; 14. Return spring; 15. Slide; 16. Filter assembly. Implementation Method

[0013] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0014] As shown in Figures 1 and 2, the high-sealing water pump includes a water pump body 1, an impeller 2 is provided in the water pump body 1, and a water inlet for water intake and a water outlet are provided on the water pump body 1. A driving mechanism 3 is provided at the rear end of the water pump body 1, and the motor shaft of the driving mechanism 3 extends into the water pump body 1 to drive the impeller 2 to work. The water pump body 1 is composed of a left water pump shell 4, a right water pump shell 5 and a water pump inner shell 6. The left water pump shell 4 and the right water pump shell 5 are fixedly connected by fixing bolts. The water pump inner shell 6 is provided between the left water pump shell 4 and the right water pump shell 5. The provision of the water pump inner shell 6 improves the overall sealing of the water pump, and the interior of the water pump can be repaired by disassembling the left water pump shell 4 and the right water pump shell 5. A water inlet 7 is provided on the water pump body 1 relative to the water inlet, and a water outlet 8 is provided on the water pump body 1 relative to the water outlet. A buffer device 9 for water flow buffering is provided in the water inlet 7.

[0015] To elaborate further, the buffer device 9 has a buffering effect on the water flow entering the water pump body 1. When the driving mechanism 3 starts to run and drives the impeller 2 to rotate, the water pump body 1 is in an operating state, and water enters the water pump body 1 from the water inlet 7. The buffer plate 11 and the sliding part 13 will buffer the water. When the water pressure is too high, it will drive the sliding part 13 to slide, and the return spring 14 is compressed to make the buffer plate 11 rest on the positioning part 10, and the water inlet 7 is in a closed state. When the water pressure begins to decrease, the return spring 14 rebounds, the sliding part 13 slides outward, and the water inlet 7 is in a flowing state.

[0016] To be more specific, a positioning portion 10 is protruding from the water inlet portion 7 for positioning the buffer device 9. The buffer device 9 includes a buffer plate 11, a connecting portion 12, a sliding portion 13 and a reset spring 14. The buffer plate 11, the connecting portion 12 and the sliding portion 13 are integrally formed. The positioning portion 10 is provided with a slide groove 15 for the sliding portion 13 to slide, and the sliding portion 13 is provided with a plurality of water holes for passing water. The reset spring 14 is arranged in the slide groove 15 and is located at the bottom end of the sliding portion 13.

[0017] In further detail, a filter assembly 16 is further provided in the water inlet portion 7, and the filter assembly 16 is fixedly mounted on the positioning portion 10 by fixing bolts. The setting of the filter assembly 16 can filter the liquid entering the water pump body 1.

[0018] To be more specific, the water inlet 7 is fixedly connected to the water pump body 1 by fixing bolts, and the water outlet 8 is fixedly connected to the water pump body 1 by fixing bolts.

[0019] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0020] Although this document frequently uses terms such as the water pump body 1, impeller 2, drive mechanism 3, water pump left housing 4, water pump right housing 5, water pump inner housing 6, water inlet 7, water outlet 8, buffer device 9, positioning portion 10, buffer plate 11, connecting portion 12, sliding portion 13, return spring 14, chute 15, and filter assembly 16 in the figures, the use of other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A high-sealing water pump, comprising a water pump body (1), wherein an impeller (2) is arranged in the water pump body (1), wherein a water inlet for water intake and a water outlet for water discharge are provided on the water pump body (1), wherein a driving mechanism (3) is arranged at the rear end of the water pump body (1), wherein a motor shaft of the driving mechanism (3) extends into the water pump body (1) to drive the impeller (2) to operate, wherein: The water pump body (1) is composed of a left water pump shell (4), a right water pump shell (5) and a water pump inner shell (6); the left water pump shell (4) and the right water pump shell (5) are fixedly connected by fixing bolts; the water pump inner shell (6) is arranged between the left water pump shell (4) and the right water pump shell (5); a water inlet (7) is arranged on the water pump body (1) at a position relative to the water inlet; a water outlet (8) is arranged on the water pump body (1) at a position relative to the water outlet; and a buffer device (9) for water flow buffering is arranged in the water inlet (7).

2. A high-sealing water pump according to claim 1, characterized in that: The water inlet portion (7) is provided with a positioning portion (10) protruding therein for positioning the buffer device (9). The buffer device (9) comprises a buffer plate (11), a connecting portion (12), a sliding portion (13) and a return spring (14). The buffer plate (11), the connecting portion (12) and the sliding portion (13) are integrally formed. The positioning portion (10) is provided with a slide groove (15) for the sliding portion (13) to slide. The sliding portion (13) is provided with a plurality of water holes for passing water. The return spring (14) is arranged in the slide groove (15) and is located at the bottom end of the sliding portion (13).

3. A high-sealing water pump according to claim 1, characterized in that: A filter assembly (16) is also provided in the water inlet portion (7), and the filter assembly (16) is fixedly mounted on the positioning portion (10) by means of fixing bolts.

4. A high-sealing water pump according to claim 1, characterized in that: The water inlet (7) is fixedly connected to the water pump body (1) via fixing bolts, and the water outlet (8) is fixedly connected to the water pump body (1) via fixing bolts.

Images