Club-shaped liquid pump

Patent metadata

Field	Value
Publication number	US-12366247-B2
Application number	US-202418757989-A
Country	US
Kind code	B2
Filing date	Jun 28, 2024
Priority date	Dec 7, 2023
Publication date	Jul 22, 2025
Grant date	Jul 22, 2025

Abstract

A club-shaped liquid pump includes a motor, an inlet end cover and an outlet end cover. Both the inlet end cover and the outlet end cover are connected to the motor, a bracket is connected to a side of the motor near the outlet end cover, the bracket is arranged with an inlet hole to suck liquid into a stator. The bracket is fixedly arranged with a pump cover plate through the stator, the pump cover plate defines an outputting channel, the pump cover plate is connected to a rotor through an eccentric connection shaft, the rotor is connected to a motor shaft. The rotor is connected to the bracket via a pushing mechanism and at least two support mechanisms and rotates eccentrically along the inside of the stator, and at least one continuously-varying compression chamber is formed between the rotor and the stator.

First claim

What is claimed is:

1. A club-shaped liquid pump, comprising:
a motor, arranged with a motor shaft;
an inlet end cover and an outlet end cover, wherein, the inlet end cover and the outlet end cover are both connected to the motor, the inlet end cover is arranged with an inlet tube, the outlet end cover is arranged with and an outlet tube;
a bracket, connected to a side of the motor near the outlet end cover, wherein, the bracket defines an inlet hole through which a liquid is sucked into a stator and fixedly arranged with a pump cover plate through the stator; the pump cover plate defines an outputting channel; the pump cover plate is connected to a rotor via an eccentric connection shaft; the rotor is connected to the motor shaft; the rotor is connected to the bracket via a pushing mechanism and at least two support mechanisms and is configured to rotate eccentrically along an interior of the stator; at least one continuously-varying compression chamber is defined between the rotor and the stator;
wherein, the rotor comprises a turning disk and a rotation portion, the rotation portion is club shaped and is fixed to the turning disk;
two ends of the stator defines an inlet channel and a plurality of outlet channels, respectively; in the inlet channel, a plurality of protrusions are arranged to form a club shape; a first guiding channel is formed between two adjacent protrusions of the plurality of protrusions; the inlet channel is communicated, through the first guiding channel, with the compression chamber; the plurality of outlet channels are arranged to form the club shaped and are communicated, through a second guiding channel, with the compression chamber;
the motor is configured to drive the motor shaft to rotate to enable the liquid to enter the inlet end cover through the inlet tube and to be sucked into the compression chamber between the rotor and the stator through the inlet hole; after continuous compression, the liquid is discharged from the outlet tube arranged on the outlet end cover by flowing through the outputting channel.

2. The club-shaped liquid pump according to claim 1 , wherein, the at least two support mechanisms are distributed in a ring shape between the rotor and the bracket; every two of the at least two support mechanisms are limited and supported to each other by a fixation ring.

3. The club-shaped liquid pump according to claim 2 , wherein, each support mechanism comprises an eccentric block, an engineering plastic ring, and an anti-rotation pin; the eccentric block is connected to an interior of an eccentric hole defined in the bracket; the engineering plastic ring is connected to an interior of a positioning hole defined in the rotor, the positioning hole is communicated with a through hole; a side of the through hole near the positioning hole has a chamfer, the anti-rotation pin is connected to the fixation ring, the anti-rotation pin is arranged with a step, the eccentric block is connected to the step, the anti-rotation pin extends through the engineering plastic ring and is connected to the through hole.

4. The club-shaped liquid pump according to claim 3 , wherein, the pushing mechanism comprises a piston ring, a gasket spring, and a positioning pin; the rotor defines an annular slot and a pin hole; one end of the positioning pin is connected to the pin hole, and the other end of the positioning pin is connected to the piston ring; the gasket spring is disposed between the piston ring and the annular slot; an end face of the piston ring abuts against the gasket.

5. The club-shaped liquid pump according to claim 4 , wherein, the turning disk defines a bearing hole; the bearing hole is connected to a support shaft through a bearing; the support shaft is eccentrically connected to the motor shaft; a block is arranged in the rotation portion; a high-pressure zone is formed at an end of the rotation portion; the eccentric connection shaft is connected to the high-pressure zone through a bearing.

6. The club-shaped liquid pump according to claim 5 , wherein, the rotation portion defines at least one guiding hole and at least one concave hole; the at least one guiding hole is communicated with the high-pressure zone and the annular slot; the concave hole is defined in an end of the rotation portion.

7. The club-shaped liquid pump according to claim 5 , wherein, each of the turning disk and the rotation portion comprises a metal body and an engineering plastic layer; a thickness of the engineering plastic layer is 2 mm to 4 mm; each of an end surface of the turning disk near the rotation portion and an outer surface of the rotation portion defines a channel; the engineering plastic layer is connected to the metal body via the channel.

8. The club-shaped liquid pump according to claim 7 , wherein, each of the engineering plastic ring and the engineering plastic layer is made of elastic material.

9. The club-shaped liquid pump according to claim 1 , wherein, an end face of the stator near the outlet channels defines a weight-reduction chamber and a sealing slot; weight-reduction holes are distributed in an annular shape; the sealing slot forms a sealing structure along the outlet channels and the end face of the compression chamber.

10. The club-shaped liquid pump according to claim 1 , wherein, the pump cover plate is connected to a spring cover plate; the spring cover plate defines an outputting hole communicated with the outputting channel; a shut-off valve is arranged in the outputting channel; the shut-off valve abuts against the spring cover plate by a spring.

Assignees

• Hdu Tiantai Digital Industry Research Institute Hangzhou Dianzi Univ
• Univ Jiliang China

Inventors

• Xu Jing
• Lian Jiadi

Classifications

• F04C2/084

  Toothed wheels · CPC title

• F04C11/008

  Enclosed motor pump units · CPC title

• F04C15/0057

  Driving elements, brakes, couplings, transmission specially adapted for machines or pumps (brakes, couplings, transmissions per se F16, B60) · CPC title

• F04C2240/20

  Rotors · CPC title

• F04C2/02 Primary

  of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents · CPC title