CN213450777U

CN213450777U - Double-head diaphragm pump

Info

Publication number: CN213450777U
Application number: CN202022342484.1U
Authority: CN
Inventors: 项树民
Original assignee: Hangzhou Bozuan Electromechanical Manufacturing Co ltd
Current assignee: Hangzhou Bozuan Electromechanical Manufacturing Co ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-06-15
Anticipated expiration: 2030-10-20

Abstract

The utility model discloses a double-end diaphragm pump belongs to the diaphragm pump field, which comprises a motor, the motor is equipped with the motor shaft, the both ends of motor shaft are connected with the eccentric wheel respectively, be equipped with the balance on the eccentric wheel, the orientation of two balances is opposite, be equipped with diaphragm and piston on the balance, be equipped with the fluid chamber support between balance and the diaphragm, be equipped with the diaphragm chamber on the diaphragm, be fixed with the fluid chamber on the fluid chamber support, diaphragm and diaphragm chamber are established at the fluid indoor. The utility model discloses a design of double pump head, the balance at motor shaft both ends moves towards opposite, and the beat of the motor shaft at motor both ends can offset each other, makes the beat of motor shaft in controllable range, has reduced pump self vibration, has reduced the production of noise, and double pump head design is compared in single pump head and is required under equal flux simultaneously, and the balance beat height is lower, has reduced the diaphragm deflection, has prolonged the diaphragm life, has improved the life of diaphragm pump.

Description

Double-head diaphragm pump

Technical Field

The utility model relates to a diaphragm pump field, concretely relates to double-end diaphragm pump.

Background

The diaphragm pump is a core component in the water purifier, and a motor in the diaphragm pump rotates to drive a piston in a diaphragm chamber cavity to move up and down in the using process to realize water absorption. The motor design and manufacturing technology are mature, so that the service life of the pump head of the diaphragm pump is far shorter than that of a used motor of the diaphragm pump, the performance of the motor is excessive, and resources are wasted. The existing diaphragm pump is generally provided with a pump head on only one side, and in the using process, the eccentric action of the balance wheel can cause the position of a motor shaft to deviate from an axis, so that the rear cover of the diaphragm pump vibrates, noise is generated, and the service life of the motor can be influenced.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned problem that exists among the prior art, the utility model provides a double-end diaphragm pump.

The technical scheme of the utility model as follows: a double-head diaphragm pump comprises a motor, wherein the motor is provided with a motor shaft, two ends of the motor shaft are respectively connected with eccentric wheels, balance wheels are arranged on the eccentric wheels, the directions of the two balance wheels are opposite, a diaphragm and a piston are arranged on the balance wheels, a fluid chamber support is arranged between the balance wheels and the diaphragm, and a diaphragm chamber is arranged on the diaphragm.

A motor shell is arranged outside the motor, end covers are arranged at two ends of the motor shell, and a fluid chamber support is fixed on each end cover.

The end cover comprises a front end cover and a rear end cover, a group of electric brush tunnels are arranged on the rear end cover, wire grooves are arranged on the electric brush tunnels, and a bearing chamber is arranged in the center of the rear end cover.

The fluid chamber is fixed on the fluid chamber support, and the diaphragm chamber are arranged in the fluid chamber.

The side of the fluid chamber is provided with a water inlet and a water outlet.

The fluid chambers are oriented oppositely.

And the diaphragm chamber is provided with a suction check valve and a discharge check valve.

And a bearing is arranged between the eccentric wheel and the balance wheel and is fixed on the balance wheel through a bearing retainer ring.

The utility model discloses a design of double pump head, the balance at motor shaft both ends moves towards opposite, and the beat of the motor shaft at motor both ends can offset each other, makes the beat of motor shaft in controllable range, has reduced pump self vibration, has reduced the production of noise, and double pump head design is compared in single pump head and is required under equal flux simultaneously, and the balance beat height is lower, has reduced the diaphragm deflection, has prolonged the diaphragm life, has improved the life of diaphragm pump.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural diagram of the present invention;

fig. 3 is a cross-sectional view of the present invention;

FIG. 4 is an exploded view of the pump head of the present invention;

FIG. 5 is a schematic structural view of the rear end cap;

FIG. 6 is a schematic structural view of the front end cap;

FIG. 7 is a graph of the deflection of a motor shaft of a prior art diaphragm pump during rotation;

fig. 8 is a schematic view of the rotation of the motor shaft of the present invention;

FIG. 9 is a view from the direction A of FIG. 8;

FIG. 10 is a view from the direction B of FIG. 8;

in the figure: 1-motor, 2-motor shaft, 3-eccentric wheel, 4-bearing, 5-bearing retainer, 6-balance wheel, 7-diaphragm, 8-piston, 9-diaphragm chamber, 10-water suction check valve, 11-water discharge check valve, 12-fluid chamber, 13-fluid chamber bracket, 14-motor housing, 15-front end cover, 16-rear end cover, 17-shock absorbing bracket, 18-water inlet, 19-water outlet, 20-brush tunnel, 21-wire guide groove, 22-bearing chamber, 23-single-head diaphragm pump rear end cover, 24-single-head diaphragm pump motor shaft, 25-motor shaft deflection trajectory.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1-4, a double-ended diaphragm pump includes a motor 1, the motor 1 is provided with a motor shaft 2, two ends of the motor shaft 2 are respectively connected with an eccentric wheel 3, the eccentric wheel 3 is provided with a balance wheel 6, the two balance wheels 6 are opposite in direction, a bearing 4 is provided between the eccentric wheel 3 and the balance wheels 6, and the bearing 4 is fixed on the balance wheels 6 through a bearing retainer ring 5. A diaphragm 7 and a piston 8 are arranged on the balance wheel 6, a fluid chamber support 13 is arranged between the balance wheel 6 and the diaphragm 7, a diaphragm chamber 9 is arranged on the diaphragm 7, and a suction check valve 10 and a discharge check valve 11 are arranged on the diaphragm chamber 9.

As shown in fig. 5-6, the end cap includes a front end cap 15 and a rear end cap 16, a set of brush tunnels 20 is disposed on the rear end cap 16, a wire guide 21 is disposed on each brush tunnel 20, a bearing chamber 22 is disposed in the center of the rear end cap 16, and a bearing is disposed in the bearing chamber 22. The broken line in fig. 5 represents the yaw trajectory of the conventional single-head diaphragm pump.

A motor shell 14 is arranged outside the motor 1, end covers 15 are arranged at two ends of the motor shell 14, a fluid chamber support 13 is fixed on the end covers 15, a fluid chamber 12 is fixed on the fluid chamber support 13, the diaphragm 7 and the diaphragm chamber 9 are arranged in the fluid chamber 12, and the directions of the fluid chamber 12 are opposite. The side of the fluid chamber 12 is provided with a water inlet 18 and a water outlet 19. The two water inlets are communicated with each other through a pipeline and then connected with a water inlet pipe; the two water outlets are communicated with each other through a pipeline and then connected with a water outlet pipe.

As shown in fig. 8-10, the utility model discloses a design of two pump heads, the balance 6 orientation at 2 both ends of motor shaft is opposite, when motor shaft 2 rotates, the beat of motor shaft 2 at 1 both ends of motor can offset each other, make the beat of motor shaft 2 in controllable range, pump self vibration has been reduced, the production of noise has been reduced, simultaneously two pump head designs are compared in single pump head under equal flux requirement, the balance beat height is lower, the diaphragm deflection has been reduced, the diaphragm life is prolonged, the service life of diaphragm pump is prolonged.

Claims

1. A double-headed diaphragm pump comprising a motor (1), characterized in that: the motor is characterized in that the motor (1) is provided with a motor shaft (2), two ends of the motor shaft (2) are respectively connected with an eccentric wheel (3), a balance wheel (6) is arranged on the eccentric wheel (3), the directions of the two balance wheels (6) are opposite, a diaphragm (7) and a piston (8) are arranged on the balance wheels (6), a fluid chamber support (13) is arranged between the balance wheels (6) and the diaphragm (7), and a diaphragm chamber (9) is arranged on the diaphragm (7).

2. A double-ended diaphragm pump according to claim 1, wherein: a motor shell (14) is arranged outside the motor (1), end covers are arranged at two ends of the motor shell (14), and a fluid chamber support (13) is fixed on each end cover.

3. A double-ended diaphragm pump according to claim 2, wherein: the end cover comprises a front end cover (15) and a rear end cover (16), a group of electric brush tunnels (20) are arranged on the rear end cover (16), a wire groove (21) is arranged on each electric brush tunnel (20), and a bearing chamber (22) is arranged in the center of the rear end cover (16).

4. A double-ended diaphragm pump according to claim 1, wherein: the fluid chamber support (13) is fixed with a fluid chamber (12), and the diaphragm (7) and the diaphragm chamber (9) are arranged in the fluid chamber (12).

5. A double-ended diaphragm pump according to claim 4, wherein: the side surface of the fluid chamber (12) is provided with a water inlet (18) and a water outlet (19).

6. A double-ended diaphragm pump according to claim 4, wherein: the fluid chambers (12) are oppositely oriented.

7. A double-ended diaphragm pump according to claim 1, wherein: and a suction check valve (10) and a discharge check valve (11) are arranged on the diaphragm chamber (9).

8. A double-ended diaphragm pump according to claim 1, wherein: a bearing (4) is arranged between the eccentric wheel (3) and the balance wheel (6), and the bearing (4) is fixed on the balance wheel (6) through a bearing retainer ring (5).