CN116123073A

CN116123073A - Pump head, diaphragm booster pump, water treatment device and damping method

Info

Publication number: CN116123073A
Application number: CN202111341177.4A
Authority: CN
Inventors: 李国平; 王娟; 刘海涛
Original assignee: Shenzhen Angel Drinking Water Equipment Co Ltd
Current assignee: Shenzhen Angel Drinking Water Equipment Co Ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2023-05-16

Abstract

The utility model provides a pump head, diaphragm booster pump, water treatment facilities and shock attenuation method, pump head include drive shaft, eccentric subassembly, balance wheel subassembly and supercharging subassembly, wherein, the balance wheel subassembly includes at least a pair of balance wheel, at least a pair of balance wheel install in on the eccentric subassembly, the drive shaft drives eccentric subassembly is rotatory, every set up on the balance wheel phase place 180 cams follow the axial of drive shaft is the opposite movement, supercharging subassembly connect in on the balance wheel subassembly, make supercharging subassembly follow the axial of drive shaft takes place the dilatation or compresses. The technical scheme of this application has improved the flow of diaphragm booster pump to and reduced the vibrations and the noise that have reduced the diaphragm booster pump.

Description

Pump head, diaphragm booster pump, water treatment device and damping method

Technical Field

The application relates to the technical field of water treatment, in particular to a pump head, a diaphragm booster pump, a water treatment device and a damping method.

Background

At present, a common diaphragm booster pump drives a rubber valve to periodically close and open a water inlet and a water outlet on a valve seat through the volume change caused by the periodical movement of a diaphragm sheet, so that the booster pump is realized.

The key components of the traditional diaphragm booster pump, as shown in fig. 1 and 2, comprise a motor, an eccentric wheel, a swinging wheel seat provided with three swinging wheels, a diaphragm sheet divided into three piston actuating areas, three pistons, a piston chamber comprising three groups of water inlets and one group of water outlets, three water inlet check valves, one water outlet check valve, a water inlet containing hole and a water outlet hole; the pump head cover is provided with a water inlet channel and a water outlet channel which are mutually separated, wherein a source water cavity is formed between the water inlet channel of the pump head cover and the piston chamber, a high-pressure water cavity is formed between the water outlet channel of the pump head cover and the piston chamber, and three independent pressurized water cavities are formed between the piston chamber and the diaphragm.

When the motor rotates, the eccentric wheel can be driven to rotate, the balance wheel can not rotate due to the restriction, so that the three balance wheels can only sequentially generate axial reciprocating motion, the three piston actuating areas of the diaphragm can synchronously perform axial expansion-compression motion by the axial reciprocating motion of the balance wheel, when the diaphragm piston actuating areas move towards the expansion direction, the water inlet one-way valve is opened, source water is sucked into the pressurized water cavity through the water inlet, when the diaphragm piston actuating areas move towards the compression direction, the water discharge one-way valve is opened, pressurized water is extruded out, enters the high-pressure water cavity through the water outlet, and is discharged out of the pump through the drain hole of the pump head cover, so that needed high-pressure water is provided.

The diaphragm booster pump has the defect that in the working process, the three balance wheels can push the diaphragm in turn to continuously apply force in the same direction. When the rotating speed of the motor shaft is up to 700-1200rpm, the vibration generated by the alternate action of the three balance wheels is extremely large, so that larger noise is generated. In addition, the diaphragm booster pump has a small flow rate. The flow is increased, and the motor speed is increased or the pump body volume is increased. However, increasing the motor speed may cause vibration and noise problems to be more serious, and increasing the volume may cause the booster pump to be difficult to be mounted in cooperation with existing equipment.

The matters in the background section are only those known to the public inventor and do not, of course, represent prior art in the field.

Disclosure of Invention

The application aims at providing a pump head, a diaphragm booster pump, a water treatment device and a damping method, and solves the problems of high vibration noise and low flow of the conventional diaphragm booster pump.

According to an aspect of the application, a pump head of a diaphragm booster pump is provided, including drive shaft, eccentric subassembly, balance wheel subassembly and pressure boost subassembly, wherein, the balance wheel subassembly includes at least a pair of balance wheel, at least a pair of balance wheel install in on the eccentric subassembly, the drive shaft drives eccentric subassembly is rotatory, set up on every balance wheel that the phase place differs 180 cams follow the axial of drive shaft is the opposite movement, pressure boost subassembly connect in on the balance wheel subassembly, make pressure boost subassembly is followed the axial of drive shaft takes place dilatation or compression.

According to some embodiments, the eccentric assembly comprises a first eccentric and a second eccentric, the first eccentric being connected to the second eccentric, the eccentric direction of the first eccentric being parallel to the eccentric direction of the second eccentric.

According to some embodiments, the at least one pair of balance wheels comprises: the first balance wheel is installed on the first eccentric wheel, the second balance wheel is installed on the second eccentric wheel, and when the driving shaft drives the eccentric assembly to rotate, cams with 180-degree phase difference on the first balance wheel and the second balance wheel are close to or far away from each other along the axial direction of the driving shaft.

According to some embodiments, a plurality of cams are provided on each of the first balance and the second balance, the cams provided on the first balance corresponding to the cams provided on the second balance along the radial direction of the drive shaft.

According to some embodiments, when the eccentric assembly rotates, a resultant force generated by swinging upwards along the axial direction of the driving shaft between the cams which are correspondingly arranged on the first balance wheel and the second balance wheel and are 180 degrees different in phase is zero and the resultant force moment is balanced.

According to some embodiments, the first eccentric and the second eccentric have the same eccentric angle and are in the range of 0.5 ° to 10 °.

According to some embodiments, the first eccentric and the second eccentric have the same eccentric angle and are in the range of 1 ° to 5 °.

According to some embodiments, the supercharging assembly comprises a first supercharging assembly and a second supercharging assembly, the first balance acting on the first supercharging assembly and the second balance acting on the second supercharging assembly.

According to some embodiments, the first pressurizing assembly and the second pressurizing assembly each comprise a piston chamber and a diaphragm, wherein the piston chamber is provided with a water inlet hole and a water outlet hole, a water inlet one-way valve is arranged at the water inlet hole, and a water outlet one-way valve is arranged at the water outlet hole; the diaphragm is arranged on the cam, a first pressurizing cavity group and a second pressurizing cavity group are formed by the diaphragm and the piston chamber, the first balance wheel corresponds to the first pressurizing cavity group, and the second balance wheel corresponds to the second pressurizing cavity group.

According to some embodiments, the diaphragm includes a plurality of bosses for coupling to a cam of the balance wheel assembly.

According to some embodiments, the first booster cavity group and the second booster cavity group each comprise a plurality of booster cavities, each booster cavity is communicated with the water inlet hole and the water outlet hole of the piston chamber, and the plurality of booster cavities sequentially expand and compress.

According to some embodiments, the plurality of pumping chambers of the first pumping chamber group or the second pumping chamber group do not interfere with each other.

According to some embodiments, the first booster cavity group and the second booster cavity group are subjected to capacity expansion and compression movements simultaneously by two booster cavities with 180-degree phase difference.

According to some embodiments, the first set of plenums is the same as the number of plenums in the second set of plenums.

According to some embodiments, the plenum completes one expansion and compression cycle per revolution of the drive shaft.

According to some embodiments, the pump head further comprises a first end cover and a second end cover, wherein a first water inlet cavity and a first water outlet cavity are formed between the first end cover and the piston chamber of the first pressurizing assembly, the first water inlet cavity is communicated with the water inlet hole of the piston chamber of the first pressurizing assembly, and the first water outlet cavity is communicated with the water outlet hole of the piston chamber of the first pressurizing assembly; a second water inlet cavity and a second water outlet cavity are formed between the second end cover and the piston chamber of the second pressurizing assembly, the second water inlet cavity is communicated with the water inlet hole of the piston chamber of the second pressurizing assembly, and the second water outlet cavity is communicated with the water outlet hole of the piston chamber of the second pressurizing assembly.

According to some embodiments, the pump head further comprises a first balance wheel seat and a second balance wheel seat, wherein the first balance wheel seat comprises a water inlet and a water outlet, the water inlet is communicated with the first water inlet cavity, and the water outlet is communicated with the first water outlet cavity; the first water inlet cavity is communicated with the second water inlet cavity, and the first water outlet cavity is communicated with the second water outlet cavity.

According to some embodiments, each of the first and second balance wheels has a plurality of balance wheel bores for limiting the reciprocating movement of the plurality of cams on the first and second balance wheels in the axial direction of the drive shaft.

According to an aspect of the present application, there is provided a diaphragm booster pump comprising: a pump head as described above; and the motor is coupled to the driving shaft of the pump head.

According to an aspect of the present application, there is provided a water treatment apparatus comprising a pump head as described above or a diaphragm booster pump as described above.

According to an aspect of the present application, a method for controlling vibration/noise reduction of a diaphragm booster pump is provided, including:

the driving shaft of the diaphragm booster pump drives the first eccentric wheel and the second eccentric wheel to eccentrically rotate simultaneously;

the first eccentric wheel drives a cam on the first balance wheel and the second eccentric wheel drives a cam on the second balance wheel to swing along the axial direction of the driving shaft;

the two cams on the first balance wheel and the second balance wheel, which are 180 degrees different in phase, swing in opposite directions and approach or depart from each other simultaneously, so that the resultant force generated by the two cams which are 180 degrees different in phase swing is zero;

the cams on the first balance wheel and the second balance wheel are respectively connected with the diaphragm, and the cams reciprocate along the axial direction of the driving shaft to drive the deformation area of the diaphragm to squeeze toward the direction of the piston chamber or expand away from the piston chamber, so that the pressurizing cavity performs compression movement or expansion movement.

According to some embodiments, when the deformation area of the diaphragm expands away from the piston chamber, the pressurizing cavity expands, the water inlet one-way valve opens, and water is sucked into the pressurizing cavity through the water inlet hole.

According to some embodiments, when the deformation area of the diaphragm is pressed towards the piston chamber, the pressurizing cavity compresses, the water outlet one-way valve is opened, and the pressurized water is discharged from the pressurizing cavity through the water outlet hole.

Based on the pump head, the diaphragm booster pump, the water treatment device and the damping method, compared with the traditional diaphragm booster pump, the diaphragm booster pump has the advantages that the pump flow is obviously improved due to the increase of the booster cavity, and the total force born by the design of the double eccentric wheels is always zero, so that the vibration of the diaphragm booster pump is reduced, and the noise is reduced.

The double eccentric wheel design utilizes the eccentric angle of the first eccentric wheel and the second eccentric wheel to be the same, and the axle center of the first eccentric wheel is parallel to the axle center of the second eccentric wheel, so that any pair of cam groups with 180-degree phase difference on the first balance wheel and the second balance wheel do opposite movements along the axial direction of the driving shaft respectively, and simultaneously approach or keep away from each other, and the resultant force born by the balance wheel assembly in the movement process is always zero. Any pair of pressurizing cavities with 180-degree phase difference simultaneously perform expansion and compression motions, so that the resultant force born by the pump is always zero in the working process. Compared with the traditional diaphragm booster pump which always receives unidirectional force, the diaphragm pump has balanced force during working, can greatly reduce vibration and noise, and can achieve the effect of relative silence.

For a further understanding of the nature and technical aspects of the present application, reference should be made to the following detailed description and accompanying drawings, which are included to illustrate and not to limit the scope of the invention.

Drawings

Embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, are included to provide a further understanding of the disclosure. The exemplary embodiments of the present disclosure and their description are for the purpose of explaining the present disclosure and are not to be construed as unduly limiting the present disclosure. In the accompanying drawings:

fig. 1-2 show schematic diagrams of conventional diaphragm booster pumps.

Fig. 3 shows a schematic view of a pump head according to an example embodiment of the present application.

Fig. 4 shows a schematic cross-sectional view of a pump head according to an example embodiment of the present application.

Fig. 5 shows a schematic view of an eccentric assembly according to an example embodiment of the present application.

Fig. 6 shows a schematic view of a transmission according to an exemplary embodiment of the present application.

Fig. 7 shows a schematic view of a balance wheel assembly according to an example embodiment of the present application.

Fig. 8 shows an exploded view of a pump head according to an example embodiment of the present application.

Fig. 9 shows a schematic diagram of a supercharging assembly according to an example embodiment of the present application.

Fig. 10 illustrates a schematic view of a diaphragm according to an example embodiment of the present application.

Fig. 11 shows a schematic view of a piston chamber according to an example embodiment of the present application.

Fig. 12 shows a schematic view of a wobble wheel seat according to an example embodiment of the present application.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present application. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, or communicable with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

The preferred embodiments of the present application will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present application only and are not intended to limit the present application.

Fig. 3 shows a schematic view of a pump head according to an example embodiment of the present application. Fig. 4 shows a schematic cross-sectional view of a pump head according to an example embodiment of the present application.

As shown in fig. 3-4, according to an exemplary embodiment of the present application, the present application discloses a pump head 100 of a diaphragm booster pump, including a transmission part and a booster component, where the transmission part includes a driving shaft 13, an eccentric component 12, and a balance component 35, where the balance component 35 includes at least one pair of balance wheels, at least one pair of balance wheels is installed on the eccentric component 12, the driving shaft 13 drives the eccentric component 12 to rotate, cams 1001 with 180 ° phase difference are set on each pair of balance wheels to do opposite movement along the axial direction of the driving shaft 13, and the booster component is connected to the balance wheel component 35, so that the booster component expands or compresses along the axial direction of the driving shaft 13.

Fig. 5 shows a schematic view of an eccentric assembly according to an example embodiment of the present application. Fig. 6 shows a schematic view of a transmission according to an exemplary embodiment of the present application. Fig. 7 shows a schematic view of a balance wheel assembly according to an example embodiment of the present application. Fig. 8 shows an exploded view of a pump head according to an example embodiment of the present application.

As shown in fig. 5, the eccentric assembly 12 includes a first eccentric 1201 and a second eccentric 1202 in accordance with an embodiment of the present application. The eccentric assembly 12 is fixed to the drive shaft 13.

The first eccentric 1201 is connected to the second eccentric 1202, and the eccentric direction of the first eccentric 1201 is parallel to the eccentric direction of the second eccentric 1202.

The eccentric angles of the first eccentric 1201 and the second eccentric 1202 are the same and are in the range of 0.5 ° to 10 °. Preferably, the eccentric angle may be set to 0.5 °, 1 °, 1.5 °, 2.5 °, 3.5 °, 5 °, 7.5 °, or 10 °.

Alternatively, the eccentric angles of the first eccentric 1201 and the second eccentric 1202 are the same in this application and are in the range of 1 ° to 5 °.

As shown in fig. 6-8, at least one pair of balance wheels includes a first balance wheel 10 and a second balance wheel 15 according to an embodiment of the present application.

First balance 10 is mounted on first eccentric 1201, second balance 15 is mounted on second eccentric 1202, and cams 1001 of first balance 10 and second balance 15, which are 180 ° out of phase, are moved closer or farther along the axial direction of drive shaft 13 when drive shaft 13 rotates eccentric assembly 12.

A plurality of cams 1001 are provided on each of the first balance 10 and the second balance 15, and the cams 1001 provided on the first balance 10 correspond to the cams 1001 provided on the second balance 15 in the radial direction of the drive shaft 13.

According to the embodiment of the application, when the eccentric assembly 12 rotates, the resultant force generated by the upward swing of the cams 1001 which are correspondingly arranged on the first balance wheel 10 and the second balance wheel 15 and are 180 degrees out of phase is zero along the axial direction of the driving shaft 13, and the resultant force is balanced, so that the purposes of shock absorption and noise reduction of the diaphragm booster pump are achieved.

Fig. 9 shows a schematic diagram of a supercharging assembly according to an example embodiment of the present application. Fig. 10 illustrates a schematic view of a diaphragm according to an example embodiment of the present application. Fig. 11 shows a schematic view of a piston chamber according to an example embodiment of the present application. Fig. 12 shows a schematic view of a wobble wheel seat according to an example embodiment of the present application.

According to the present embodiment, the booster assembly comprises a first booster assembly and a second booster assembly, the first balance 10 acting on the first booster assembly and the second balance 15 acting on the second booster assembly.

As shown in fig. 9-12, according to an embodiment of the present application, the first pressurization assembly and the second pressurization assembly each include a piston chamber 31 and a diaphragm 33.

The piston chamber 31 has a water inlet 403 and a water outlet 404, the water inlet 403 is provided with a water inlet check valve 32, and the water outlet 404 is provided with a water outlet check valve 30.

Diaphragm 33 is disposed on cam 1001, diaphragm 33 and piston chamber 31 form a first pumping chamber group and a second pumping chamber group, first balance 10 corresponds to the first pumping chamber group, and second balance 15 corresponds to the second pumping chamber group.

The piston chamber 31 includes the first piston chamber 4 and the second piston chamber 22, the diaphragm 33 includes the first diaphragm 6 and the second diaphragm 20, the water intake check valve 32 includes the first water intake check valve 5 and the second water intake check valve 21, and the water outlet check valve 30 includes the first water outlet check valve 3 and the second water outlet check valve 23.

The first piston chamber 4, the first diaphragm 6, the first water inlet check valve 5 and the first water outlet check valve 3 are components of a first pumping assembly on which a cam 1001 on a first balance 10 acts. The second piston chamber 22, the second diaphragm 20, the second water inlet check valve 21 and the second water outlet check valve 23 are components of a second pressurizing assembly, on which the cam 1001 on the second balance 15 acts.

As can be seen with reference to fig. 10, diaphragm 33 includes a plurality of bosses 201 and, correspondingly, the cam of balance wheel assembly 35 has a plurality of recesses 1002 (see fig. 7) thereon that mate with the plurality of bosses 201 for coupling diaphragm 33 to cam 1001.

According to the embodiment of the application, the first pressurizing cavity group and the second pressurizing cavity group each comprise a plurality of pressurizing cavities, each pressurizing cavity is communicated with the water inlet 403 and the water outlet 404 of the piston chamber 31, and the plurality of pressurizing cavities sequentially expand and compress.

Compared with the pump head of the traditional diaphragm booster pump in fig. 1 and 2, the pump head 100 of the diaphragm booster pump is structurally improved from a cylindrical structure to a rectangular structure, so that the number of booster cavities is increased, and the flow rate of the diaphragm booster pump is improved.

According to an embodiment of the present application, the number of pumping chambers in the first pumping chamber group is the same as the number of pumping chambers in the second pumping chamber group.

The plurality of pressurizing cavities of the first pressurizing cavity group or the second pressurizing cavity group are not interfered with each other.

The two pressurizing cavities with 180-degree phase difference in the first pressurizing cavity group and the second pressurizing cavity group simultaneously perform capacity expansion and compression movement, and the generated resultant force is zero and the resultant moment is balanced, so that the purposes of shock absorption and noise reduction of the diaphragm booster pump are achieved. Here, the 180 ° out of phase is understood to be two pumping chambers of the first pumping chamber group corresponding to the second pumping chamber group in the radial direction of the drive shaft 13.

According to the embodiment of the application, every time the driving shaft 13 rotates, the cams on the balance wheel assembly, which are 180 degrees out of phase, complete a close and distant cycle along the axial direction of the driving shaft, and the pressurizing cavity completes a capacity expansion and compression cycle.

According to an embodiment of the present application, the pump head 100 further comprises a first end cap 1 and a second end cap 25.

A first water inlet cavity and a first water outlet cavity are formed between the first end cover 1 and the piston chamber 31 of the first pressurizing assembly, the first water inlet cavity is communicated with a water inlet hole 403 of the piston chamber 31 of the first pressurizing assembly, and the first water outlet cavity is communicated with a water outlet hole 404 of the piston chamber 31 of the first pressurizing assembly; a second water inlet cavity and a second water outlet cavity are formed between the second end cover 25 and the piston chamber 31 of the second pressurizing assembly, the second water inlet cavity is communicated with the water inlet hole 403 of the piston chamber 31 of the second pressurizing assembly, and the second water outlet cavity is communicated with the water outlet hole 404 of the piston chamber 31 of the second pressurizing assembly.

The first end cap 1 is connected with the corresponding piston chamber 31 in a sealing way through a sealing ring 2. The second end cap 25 is sealingly connected to its corresponding piston chamber 31 by means of a sealing ring 24.

According to an embodiment of the present application, the pump head 100 further comprises a first wobble wheel seat 9 and a second wobble wheel seat 16.

The first swinging wheel seat 9 comprises a water inlet 904, a water outlet 905, a first water inlet channel 902 and a first water outlet channel 903, wherein the water inlet 904 is communicated with the first water inlet channel 902, the first water inlet channel 902 is communicated with a first water inlet cavity, the water outlet 905 is communicated with the first water outlet channel 903, and the first water outlet channel 903 is communicated with the first water outlet cavity; the second wobble seat 16 has a second water inlet channel 1602 and a second water outlet channel 1603. The piston chamber comprises a third water inlet channel 401 and a third water outlet channel 402.

The first water inlet channel 902, the second water inlet channel 1602 and the third water inlet channel 401 of each piston chamber are communicated, so that the first water inlet cavity is communicated with the second water inlet cavity, and the first water outlet channel 903, the second water outlet channel 1603 are communicated with the third water outlet channel 402 of each piston chamber, so that the first water outlet cavity is communicated with the second water outlet cavity.

Each of the first and

second balance wheels

9 and 16 has a plurality of balance wheel holes 36 for limiting the reciprocating movement of the plurality of cams 1001 on the first and

second balance wheels

10 and 15 in the axial direction of the drive shaft 13. Balance hole 36 includes a first balance hole 901 and a second balance hole 1601. The first balance wheel seat 9 has a first balance wheel hole 901, and the second balance wheel seat 16 has a second balance wheel hole 1601.

The periphery of the first end cover 1 and the periphery of the first swinging wheel seat 9 are in sealing connection through a sealing ring 7. The corresponding first end cover 1 at the top end of the driving shaft 13 is in sealing connection with the first swinging wheel seat 9 through a sealing ring 8. The first oscillating wheel seat 9 and the second oscillating wheel seat 16 are also in sealing connection, the peripheries of the first water inlet channel 902 and the second water inlet channel 1602, the first water outlet channel 903 and the second water outlet channel 1603 are in sealing connection through a sealing ring 17, and the peripheries of the second end cover 25 and the second oscillating wheel seat 16 are in sealing connection through a sealing ring 18. The center of the second wobble wheel seat is provided with a shaft hole 1604 of the driving shaft. The corresponding second end cap 25 and second wobble seat 16 around the shaft hole 1604 are sealingly connected by a seal ring 19.

Eccentric assembly 12 is fixed to drive shaft 13, and balance wheel assembly 35 is rotatably disposed on eccentric assembly 12 via bearing 34. The bearing 34 comprises a first bearing 11 and a second bearing 14, the first bearing 11 being connected between the first balance 10 and the first eccentric 1201. The second bearing 14 is connected between the second balance 15 and the second eccentric 1202.

The waterway flow process comprises the following steps: source water enters the pump head 100 from the water inlet 904, enters the first water inlet cavity and the second water inlet cavity, enters the pressurizing cavity through the water inlet hole 403 of the pressurizing cavity provided with the water inlet one-way valve 32 when the pressurizing cavity expands, is discharged from the pressurizing cavity through the water outlet hole 404 of the pressurizing cavity provided with the water outlet one-way valve 30 when the pressurizing cavity compresses, enters the first water outlet cavity and the second water outlet cavity, is communicated through the water outlet channel, and finally discharges needed pressurizing water through the water outlet 905.

According to an example embodiment of the present application, the present application discloses a diaphragm booster pump, comprising: pump head 100 as above; a motor coupled to the driving shaft 13 of the pump head 100.

The working process of the diaphragm booster pump comprises the following steps:

the motor drives the driving shaft 13 to rotate, the driving shaft 13 drives the eccentric assembly 12 to eccentrically rotate, and as the cam 1001 of the balance wheel assembly 35 is arranged in the balance wheel hole 36 of the balance wheel seat and cannot rotate, only axial reciprocating motion along the driving shaft 13 can be performed, the eccentric rotation of the eccentric assembly 12 drives the cam 1001 of the balance wheel assembly 35 to axially reciprocate, the cam 1001 on the balance wheel assembly 35 is connected with the diaphragm 33, and the cam 1001 on the balance wheel assembly 35 drives the deformation area of the diaphragm 33 to squeeze towards the direction of the piston chamber 31 or expand away from the direction of the piston chamber 31 along the axial reciprocating motion, so that the pressurizing cavity performs compression motion or expansion motion, and the required pressurizing water is produced.

According to an example embodiment of the present application, a water treatment apparatus is disclosed, including a pump head 100 as above or a diaphragm booster pump as above.

According to an example embodiment of the present application, the present application discloses a method for controlling vibration/noise reduction of a diaphragm booster pump, including:

the driving shaft 13 of the diaphragm booster pump drives the first eccentric wheel 1201 and the second eccentric wheel 1202 to eccentrically rotate simultaneously;

the first eccentric 1201 drives the cam 1001 on the first balance 10 and the second eccentric 1202 drives the cam 1001 on the second balance 15 to oscillate along the axial direction of the driving shaft 13;

the two cams 1001 on the first balance 10 and the second balance 15, which are 180 ° out of phase, oscillate in opposite directions while approaching or moving away from each other, so that the resultant force generated by the oscillations of the two cams 1001 180 ° out of phase is zero. Here, a 180 ° phase difference is understood to mean that one cam on the first balance 10 and one cam on the second balance 15 correspond to two cams radially along the drive shaft 13.

The cams 1001 on the first balance 10 and the second balance 15 are respectively connected with the diaphragm 33, and the cams 1001 reciprocate along the axial direction of the driving shaft 13 to drive the deformation area of the diaphragm 33 to squeeze toward the piston chamber 31 or expand away from the piston chamber 31, so that the pressurizing cavity performs compression movement or expansion movement.

According to the embodiment of the application, when the deformation area of the diaphragm 33 expands away from the piston chamber 31, the pressurizing chamber expands, the water inlet check valve 32 opens, and water is sucked into the pressurizing chamber through the water inlet hole 403.

According to the embodiment of the application, when the deformation area of the diaphragm 33 is pressed toward the piston chamber 31, the pressurizing chamber compresses, the water outlet check valve 30 is opened, and the pressurized water is discharged from the pressurizing chamber through the water outlet 404.

Finally, it should be noted that: the foregoing description is only exemplary embodiments of the present disclosure, and not intended to limit the disclosure, but although the disclosure has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A pump head of a diaphragm booster pump is characterized by comprising a driving shaft, an eccentric assembly, a balance wheel assembly and a booster assembly, wherein,

the balance wheel assembly comprises at least one pair of balance wheels, the balance wheels are arranged on the eccentric assembly, the driving shaft drives the eccentric assembly to rotate, cams with 180-degree phase difference are arranged on each pair of balance wheels to do opposite movement along the axial direction of the driving shaft, and the supercharging assembly is connected to the balance wheel assembly, so that the supercharging assembly expands or compresses along the axial direction of the driving shaft.

2. The pump head of claim 1 wherein the eccentric assembly comprises a first eccentric and a second eccentric, the first eccentric being coupled to the second eccentric, the first eccentric having an eccentric direction that is parallel to an eccentric direction of the second eccentric.

3. The pump head of claim 2 wherein said at least one pair of balance wheels comprises:

the first balance wheel is installed on the first eccentric wheel, the second balance wheel is installed on the second eccentric wheel, and when the driving shaft drives the eccentric assembly to rotate, cams with 180-degree phase difference on the first balance wheel and the second balance wheel are close to or far away from each other along the axial direction of the driving shaft.

4. A pump head according to claim 3, wherein a plurality of cams are provided on each of the first balance and the second balance, the cams provided on the first balance corresponding to the cams provided on the second balance in the radial direction of the drive shaft.

5. The pump head of claim 4 wherein, when said eccentric assembly rotates, the resultant force generated by the rocking motion of said first balance wheel and said second balance wheel between said 180 ° out of phase corresponding cams along said drive shaft axis is zero and the resultant force is balanced.

6. The pump head of claim 2 wherein the first and second eccentric have the same eccentric angle and are in the range of 0.5 ° to 10 °.

7. Pump head according to claim 2, characterized in that the eccentric angle of the first eccentric and the second eccentric is identical and in the range of 1 ° to 5 °.

8. A pump head according to claim 3, wherein the booster assembly comprises a first booster assembly and a second booster assembly, the first balance acting on the first booster assembly and the second balance acting on the second booster assembly.

9. The pump head of claim 8 wherein the first pumping assembly and the second pumping assembly each comprise:

the piston chamber is provided with a water inlet hole and a water outlet hole, a water inlet one-way valve is arranged at the water inlet hole, and a water outlet one-way valve is arranged at the water outlet hole;

the diaphragm is arranged on the cam, a first pressurizing cavity group and a second pressurizing cavity group are formed by the diaphragm and the piston chamber, the first balance wheel corresponds to the first pressurizing cavity group, and the second balance wheel corresponds to the second pressurizing cavity group.

10. The pump head of claim 9, wherein the diaphragm includes a plurality of bosses for coupling to a cam of the balance wheel assembly.

11. The pump head of claim 9 wherein said first pumping plenum set and said second pumping plenum set each comprise:

the pressurizing cavities are communicated with the water inlet hole and the water outlet hole of the piston chamber, and sequentially expand and compress.

12. The pump head of claim 11 wherein the plurality of pumping chambers of either the first pumping chamber set or the second pumping chamber set do not interfere with each other.

13. The pump head of claim 11 wherein said first pumping chamber set and said second pumping chamber set are simultaneously undergoing expansion and compression motions with two pumping chambers 180 ° out of phase.

14. The pump head of claim 11 wherein the number of pumping chambers in the first pumping chamber set is the same as the number of pumping chambers in the second pumping chamber set.

15. The pump head of claim 11 wherein said pumping chamber completes one expansion and compression cycle per revolution of said drive shaft.

16. The pump head of claim 9, further comprising:

the first end cover and the piston chamber of the first pressurizing assembly form a first water inlet cavity and a first water outlet cavity, the first water inlet cavity is communicated with the water inlet hole of the piston chamber of the first pressurizing assembly, and the first water outlet cavity is communicated with the water outlet hole of the piston chamber of the first pressurizing assembly;

the second end cover and the piston chamber of the second pressurizing assembly form a second water inlet cavity and a second water outlet cavity, the second water inlet cavity is communicated with the water inlet hole of the piston chamber of the second pressurizing assembly, and the second water outlet cavity is communicated with the water outlet hole of the piston chamber of the second pressurizing assembly.

17. The pump head of claim 16, further comprising:

the first swinging wheel seat comprises a water inlet and a water outlet, the water inlet is communicated with the first water inlet cavity, and the water outlet is communicated with the first water outlet cavity;

the first water inlet cavity is communicated with the second water inlet cavity, and the first water outlet cavity is communicated with the second water outlet cavity.

18. The pump head of claim 17 wherein each of said first and second balance wheels has a plurality of balance wheel bores for limiting the reciprocating movement of a plurality of cams on said first and second balance wheels in the axial direction of said drive shaft.

19. A diaphragm booster pump, comprising:

a pump head as claimed in any one of claims 1 to 18;

and the motor is coupled to the driving shaft of the pump head.

20. A water treatment apparatus comprising the pump head of any one of claims 1 to 18 or the diaphragm booster pump of claim 19.

21. A method for controlling vibration/noise reduction of a diaphragm booster pump, comprising:

22. The method of claim 21, wherein the pumping chamber expands when the deformed region of the diaphragm expands away from the piston chamber, the inlet check valve opens and water is drawn into the pumping chamber through the inlet port.

23. The method of claim 21, wherein the pumping chamber compresses when the deformed region of the diaphragm is compressed in the direction of the piston chamber, the water outlet check valve opens, and pressurized water exits the pumping chamber through the water outlet.