CN212250362U

CN212250362U - Multi-stage water pump

Info

Publication number: CN212250362U
Application number: CN201922220364.1U
Authority: CN
Inventors: 杨星雨
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-12-29
Anticipated expiration: 2029-12-12

Abstract

The utility model relates to a pumping device technical field provides a multistage suction pump. The piston pump comprises a motor, an eccentric wheel, a sleeve and a plurality of piston pumps, wherein the eccentric wheel is connected to an output shaft of the motor; each piston pump is communicated with a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are respectively provided with a one-way valve. When the eccentric wheel is in work, the eccentric wheel is driven by the motor to eccentrically rotate around an output shaft of the motor, and the sleeve sleeved outside the eccentric wheel does circular motion along with the eccentric wheel, but cannot rotate along with the eccentric wheel due to the constraint of the piston rods. When the sleeve does circular motion, the piston rods are driven to do piston motion with different phases. Every time the motor rotates a circle, each piston pump reciprocates to intake and discharge water once, so that the overall water pumping frequency is improved, and the water pumping efficiency is high.

Description

Multi-stage water pump

Technical Field

The utility model relates to a pumping device technical field, concretely relates to multistage suction pump.

Background

The traditional water pump is generally composed of only one piston pump, a motor drives a crank connecting rod mechanism to drive the piston pump to reciprocate, a water inlet pipe and a water outlet pipe are arranged on the piston pump, one-way valves are respectively arranged on the water inlet pipe and the water outlet pipe, the piston reciprocates once, and the piston pump drains water once. This type of pumping and draining is inefficient, and if a larger amount of pumping and draining is desired, the rotational speed of the motor needs to be increased, which increases the energy consumption, and the pumping and draining is not continuous and stable because the piston moves periodically.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a take out multistage suction pump that drainage is efficient, the operation is stable.

In order to achieve the above object, the utility model provides a multistage water pump, including motor, eccentric wheel, sleeve and a plurality of piston pumps, the eccentric wheel is connected on the output shaft of motor, the sleeve cover is established outside the eccentric wheel and with the eccentric wheel normal running fit is connected, a plurality of the piston pump circumference distributes in the motor periphery, one end of the piston rod of piston pump with the piston hinge of piston pump, the other end with the sleeve hinge; every the piston pump all communicates has inlet tube and outlet pipe, all be equipped with the check valve on inlet tube and the outlet pipe.

Optionally, a plurality of the piston pumps are evenly distributed on the periphery of the motor.

Optionally, the number of the piston pumps is four.

Optionally, the piston pump further comprises a water inlet main pipe and a water outlet main pipe, the water inlet pipe of each piston pump is communicated with the water inlet main pipe, and the water outlet pipe of each piston pump is communicated with the water outlet main pipe.

According to the above, the utility model discloses a multistage suction pump is at the during operation, and the eccentric wheel is rotatory around the output shaft eccentricity of motor under the drive of motor, and the sleeve of establishing at the eccentric wheel overcoat is circular motion along with the eccentricity wheel together, nevertheless can not be along with the eccentricity wheel is together rotatory because of the restraint that receives each piston rod. When the sleeve does circular motion, the piston rods are driven to do piston motion with different phases. Every time the motor rotates a circle, each piston pump reciprocates to intake and discharge water once, so that the overall water pumping frequency is improved, and the water pumping efficiency is high.

Drawings

Fig. 1 is a schematic diagram of a multi-stage water pump according to an embodiment of the present invention.

Reference numerals:

1. an eccentric wheel; 2. a piston pump; 3. a one-way valve; 4. a water inlet pipe; 5. and (5) discharging a water pipe.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are some, but not all embodiments of the invention. The specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.

As shown in fig. 1, the embodiment of the utility model provides a multistage suction pump, including motor, eccentric wheel 1, sleeve and a plurality of piston pump 2, eccentric wheel 1 is connected on the output shaft of motor, eccentric wheel 1's shaft hole eccentric settings and with the output shaft circumference spacing connection of motor, specifically can be all design the cross sectional shape in the eccentric shaft hole of motor shaft and eccentric wheel 1 for non-circular structure.

The sleeve is sleeved outside the eccentric wheel 1 and is connected with the eccentric wheel 1 in a rotating fit mode, namely when the eccentric wheel 1 rotates, the sleeve can do circumferential swing along with the eccentric wheel 1, but can not rotate. The plurality of piston pumps 2 are circumferentially distributed on the periphery of the motor, one end of a piston rod of each piston pump 2 is hinged with a piston of each piston pump 2, and the other end of the piston rod of each piston pump is hinged with the sleeve; every piston pump 2 all communicates has inlet tube 4 and outlet pipe 5, all is equipped with check valve 3 on inlet tube 4 and the outlet pipe 5, and the direction that switches on of check valve 3 is unanimous with the direction of intaking or drainage.

According to the above, the utility model discloses a multistage suction pump is at the during operation, and eccentric wheel 1 is around the eccentric rotation of the output shaft of motor under the drive of motor, and the sleeve of establishing at eccentric wheel 1 overcoat is circular motion along with eccentric wheel 1 together, nevertheless can not be along with eccentric wheel 1 is together rotatory because of the restraint that receives each piston rod. When the sleeve does circular motion, the piston rods are driven to do piston motion with different phases. Every time the motor rotates a circle, each piston pump 2 moves in a reciprocating mode to feed and discharge water once, so that the overall water pumping frequency is improved, and the water pumping efficiency is high.

In some embodiments, the plurality of piston pumps 2 are uniformly distributed on the periphery of the motor, that is, the included angle between every two adjacent piston pumps 2 is the same, so that relatively uniform pumping and draining frequency can be maintained, and the operation is smoother.

In some embodiments, the number of the piston pumps 2 is four, the four water pumps are distributed uniformly, the spatial arrangement of the four water pumps is more reasonable and compact, and the water inlet and the water outlet among the piston pumps 2 can be connected with each other, so that a continuous and stable water pumping effect is formed.

In some embodiments, the embodiment of the present invention further includes a water inlet manifold and a water drain manifold, the water inlet pipe 4 of each piston pump 2 is communicated with the water inlet manifold, and the water outlet pipe of each piston pump 2 is communicated with the water drain manifold. Therefore, water can be uniformly sucked from a water inlet and uniformly discharged from a water outlet, and the whole body forms a water pumping device.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A multi-stage water pump is characterized by comprising a motor, an eccentric wheel, a sleeve and a plurality of piston pumps, wherein the eccentric wheel is connected to an output shaft of the motor, the sleeve is sleeved outside the eccentric wheel and is in rotating fit with the eccentric wheel, the circumferences of the plurality of piston pumps are distributed on the periphery of the motor, one end of a piston rod of each piston pump is hinged to a piston of the corresponding piston pump, and the other end of the piston rod of each piston pump is hinged to the sleeve; every the piston pump all communicates has inlet tube and outlet pipe, all be equipped with the check valve on inlet tube and the outlet pipe.

2. The multi-stage water pump according to claim 1, wherein the plurality of piston pumps are evenly distributed around the periphery of the motor.

3. The multi-stage water pump according to claim 2, wherein the number of the piston pumps is four.

4. The multi-stage water pump according to any one of claims 1 to 3, further comprising a water inlet manifold and a water outlet manifold, wherein the water inlet pipe of each piston pump is communicated with the water inlet manifold, and the water outlet pipe of each piston pump is communicated with the water outlet manifold.