CN215058050U

CN215058050U - High stability constant voltage structure of booster pump

Info

Publication number: CN215058050U
Application number: CN202121099676.2U
Authority: CN
Inventors: 项树民; 王剑杰
Original assignee: Hangzhou Bozuan Electromechanical Manufacturing Co ltd
Current assignee: Hangzhou Bozuan Electromechanical Manufacturing Co ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2021-12-07
Anticipated expiration: 2031-05-21

Abstract

The utility model belongs to the technical field of booster pumps, and discloses a high-stability constant-pressure structure of a booster pump, which comprises a fluid chamber bracket and a fluid chamber arranged on the fluid chamber bracket, wherein a diaphragm chamber, a diaphragm and a piston frame are sequentially arranged in the fluid chamber; the one side that lies in on the fluid chamber between the upper portion of diaphragm chamber and the fluid chamber, water inlet and delivery port axis is equipped with the steady voltage passageway in intercommunication water storage chamber and high-pressure chamber, and the high-pressure chamber external diameter of diaphragm chamber aims at buffering pressure release hole's position and sets up a pressure release check valve, pressure release check valve and high-pressure chamber outer lane enclose to close and form a confined space for withstand buffering pressure release hole, pressure release check valve have elasticity, can open or be closed along with the water pressure size. The improvement of this structure can carry out the pressure release when water pressure surpasss confined pressure, seals the pressure release buffer when not needing the pressure release, has reduced the energy loss of booster pump pressure release in-process, has practiced thrift the energy.

Description

High stability constant voltage structure of booster pump

Technical Field

The utility model belongs to the technical field of the booster pump, especially, relate to a high stability constant voltage structure of booster pump.

Background

With the increasing market popularity of reverse osmosis water purifiers, the requirements of the use environment conditions are also becoming wider, the requirements for the core component booster pump are synchronously improved, the water pressure is different in different places such as cities and mountainous areas, and the water pressure is different at different times or different floors in the same place, therefore, the water storage cavity of the booster pump is changed along with the difference of the water inlet pressure, in order to adapt to various water pressure conditions, the patent document with the patent publication No. CN205858626U discloses a booster pump with self-pressure-stabilizing performance, which comprises a motor part for generating a power source and a pump head part capable of achieving the self-pressure-stabilizing performance, a fluid chamber with pressure relief is arranged in the pump head and is provided with a pressure relief buffer area, the fluid chamber is provided with a valve for controlling the opening and closing of a pressure-stabilizing channel, the valve comprises an outer ring rib and an inner ring rib which are arranged in the middle part, and a buffering water inlet hole is arranged between the outer ring rib and the inner ring rib, the inner side of the inner ring rib is provided with a buffering pressure relief hole, the buffering water inlet hole is connected with a pressure relief buffer area which is spirally raised, the tail end of the pressure relief buffer area is in separable sealing connection with the buffering pressure relief hole through a spring and a valve plate structure above, and the water outlet efficiency of the common pressure stabilizing pump which is capable of being greatly reduced is lost for meeting the pressure stabilizing performance. However, the booster pump with the self-pressure-stabilizing performance has certain defects, when the water pressure condition is proper and the pressure is not required to be relieved, the pressure relief buffer area is subjected to invisible pressure relief, and the power of the motor does part of useless work, so that the energy loss is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high stability constant voltage structure of booster pump to solve the technical problem from the booster pump energy loss of steady voltage performance.

In order to achieve the above object, the utility model discloses a high stability constant voltage structure of booster pump's concrete technical scheme as follows:

a high-stability constant-pressure structure of a booster pump comprises a fluid chamber support and a fluid chamber arranged on the fluid chamber support, wherein a diaphragm chamber, a diaphragm and a piston frame are sequentially arranged in the fluid chamber; one side of the fluid chamber is provided with a water inlet, and the other side of the fluid chamber is provided with a water outlet; the hollow cavity formed between the diaphragm and the diaphragm chamber is a low-pressure cavity; the middle of the diaphragm chamber and the fluid chamber is enclosed to form a hollow chamber which is a high-pressure chamber; the hollow cavity between the diaphragm chamber and the fluid chamber except the high-pressure cavity is a water storage cavity; a low-pressure cavity 4 on the diaphragm chamber is provided with a suction check valve, and a high-pressure cavity on the diaphragm chamber is provided with a discharge check valve; a pressure stabilizing channel communicated with the water storage cavity and the high-pressure cavity is arranged between the upper part of the diaphragm chamber and the fluid chamber and positioned on the fluid chamber and on one side of the axis of the water inlet and the water outlet, the pressure stabilizing channel comprises a buffering water inlet hole and a buffering pressure relief hole, the buffering water inlet hole is positioned in the center of the pressure stabilizing channel and communicated with the high-pressure cavity, and the buffering pressure relief hole is positioned on one side of the buffering water inlet hole and communicated with the water storage cavity; buffering inlet opening and buffering pressure release hole realize separable sealing connection through the valve block and the spring structure of top, aim at the position in buffering pressure release hole at the high-pressure chamber external diameter of diaphragm chamber and set up a pressure release check valve, the pressure release check valve encloses with the high-pressure chamber outer lane and closes formation a confined space for withstand buffering pressure release hole, the pressure release check valve has elasticity, can open or be closed along with the water pressure size.

Furthermore, an inner ring rib is arranged on the outer ring of the buffering water inlet hole.

Furthermore, a pressure stabilizing top cover is arranged on the outer side of the spring structure, and the outer side edge of the pressure stabilizing top cover is flush with the side face of the fluid chamber.

Further, the pressure relief check valve is made of rubber.

Furthermore, a pillar is arranged in the middle of the pressure relief check valve, a boss is arranged at the lower end of the pillar, the diameter of the boss is larger than that of the pillar, the pillar is clamped into a clamping groove formed in the outer diameter of a high-pressure cavity of the diaphragm chamber, and the boss at the lower end of the pillar is reserved outside the lower end of the clamping groove and used for fixing the pressure relief check valve.

Further, the upper end of the strut of the pressure relief check valve is provided with a horn-shaped opening.

Furthermore, the edge of the opening in the shape of the horn is provided with a flat edge, and the flat edge is used for being matched with the plane of the buffering pressure relief hole to form a sealing structure.

Further, the inner side of the horn-shaped opening is matched with the outer diameter of the high-pressure cavity to form a sealing structure.

Further, the outer side of the horn-shaped opening is arc-shaped.

The utility model discloses a high stability constant voltage structure of booster pump has following advantage:

the improvement of this structure can carry out the pressure release when water pressure surpasss confined pressure, seals the pressure release buffer when not needing the pressure release, makes the pressure release process obtain better control, has reduced the energy loss of booster pump pressure release in-process, has practiced thrift the energy.

Drawings

FIG. 1 is a schematic view of the booster pump of the present invention;

FIG. 2 is a schematic longitudinal sectional view of a pump head of the booster pump of the present invention;

FIG. 3 is a schematic view of the pressure stabilizing channel structure of the booster pump of the present invention;

FIG. 4 is a high stability constant pressure structure diagram of the booster pump of the present invention;

FIG. 5 is a schematic cross-sectional view of the pressure relief check valve of the present invention;

FIG. 6 is a top view of the pressure relief check valve of the present invention;

FIG. 7 is a right side view of the pressure relief check valve of the present invention;

the notation in the figure is: 1. a fluid chamber support; 2. a piston frame; 3. a membrane; 4. A diaphragm chamber; 5. a fluid chamber; 51. a water inlet; 52. a water outlet; 53. a valve plate; 55. a pressure stabilizing top cover; 56. a spring structure; 512. inner ring ribs; 513. a water inlet hole is buffered; 514. a buffer pressure relief hole; 41. a pressure relief check valve; 42. a card slot; 43. a low pressure chamber; 44. a high pressure chamber; 45. a water storage cavity; 431. a suction check valve; 441. a discharge check valve; 411. a pillar; 412. flattening; 413. a raised portion.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, the following description is made in detail with reference to the accompanying drawings.

As shown in fig. 1, a high-stability constant-pressure structure of a booster pump comprises a motor part and a pump head part, wherein the pump head part is arranged at the front end of the motor part, the pump head comprises a fluid chamber support 1 and a fluid chamber 5 arranged on the fluid chamber support 1, a diaphragm chamber 4, a diaphragm 3 and a piston frame 2 are sequentially arranged in the fluid chamber 5, as shown in fig. 2, one side of the fluid chamber 5 is provided with a water inlet 51, and the other side of the fluid chamber 5 is provided with a water outlet 52; as shown in fig. 6, the hollow chamber formed between the diaphragm 3 and the diaphragm chamber 4 is a low pressure chamber 43; the hollow cavity enclosed between the diaphragm chamber 4 and the fluid chamber 5 is a high-pressure cavity 44; a hollow chamber between the diaphragm chamber 4 and the fluid chamber 5 except for the high-pressure chamber 44 is a water storage chamber 45; a suction check valve 431 is provided in the low pressure chamber 43 of the diaphragm chamber 4, and a discharge check valve 441 is provided in the high pressure chamber 44 of the diaphragm chamber 4. The water flow flows into the water storage chamber 45 from the pump head water inlet 51, then enters the low pressure chamber 43, then enters the high pressure chamber 44, and then is discharged from the water outlet 52.

As shown in fig. 2 to 4, a pressure stabilizing channel communicating the water storage cavity 45 with the high pressure cavity 44 is arranged between the upper part of the diaphragm chamber 4 and the fluid chamber 5 and on one side of the axis of the water inlet 51 and the water outlet 52 on the fluid chamber 5, the pressure stabilizing channel comprises a buffering water inlet hole 513 and a buffering pressure relief hole 514, the buffering water inlet hole 513 is positioned in the center of the pressure stabilizing channel and is communicated with the high pressure cavity 44, an inner ring rib 512 is arranged on the outer ring of the buffering water inlet hole 513, and the buffering pressure relief hole 514 is positioned on one side of the buffering water inlet hole 513 and is communicated with the water storage cavity 45; the buffer water inlet hole 513 and the buffer pressure relief hole 514 are in separable sealing connection through the valve plate 53 and the spring structure 56 above. The outside of the spring structure 56 is provided with a pressure stabilizing cover 55, the outside edge of the pressure stabilizing cover 55 is flush with the side of the fluid chamber 5.

In order to reduce the booster pump energy loss of self-stabilization performance, further improve the stability of booster pump, as shown in fig. 4, the utility model discloses the position of aiming at buffering pressure release hole 514 at the high-pressure chamber 44 external diameter of diaphragm chamber 4 sets up a pressure release check valve 41, pressure release check valve 41 encloses with high-pressure chamber 44 outer lane and closes and form a confined space for withstand buffering pressure release hole 514.

As shown in fig. 5 to 7, the middle of the pressure relief check valve 41 has a pillar 411, the lower end of the pillar 411 has a protrusion 413, the diameter of the protrusion 413 is larger than that of the pillar 411, the pillar 411 is clamped into a clamping groove 42 formed on the outer diameter of the high pressure chamber 44 of the diaphragm housing 4, the protrusion 413 at the lower end of the pillar 411 is left outside the lower end of the clamping groove for fixing the pressure relief check valve 41, the upper end of the pillar 411 of the pressure relief check valve 41 is an opening with a horn shape, the edge of the opening has a flat edge 412, and the flat edge 412 is used for matching the plane of the buffer pressure relief hole 514 to form a sealing structure. The inside of the trumpet-shaped opening is matched with the outer diameter of the high pressure chamber 44 to form a sealing structure, and the outside of the trumpet-shaped opening is arc-shaped. The pressure relief check valve 41 is made of rubber, has elasticity, and can be opened or closed according to the water pressure.

The utility model discloses during the implementation, pump head part through fluid chamber support 1 firm be in the same place with the motor portion, the power that produces during through the motor operation drives eccentric wheel assembly, convert the radial motion of motor into pump head part axial action, make the three independent low pressure chamber 43 that forms after diaphragm 3 and the combination of diaphragm chamber 4 during pump head part axial action, low pressure chamber 43 volume size cyclic variation makes and inhales opening and the closed action of check valve 431 endless and carry out the pressure boost. After pressurization, the discharge check valve 441 is opened circularly to enter the high-pressure cavity 44, and water with rated pressure is output from the water outlet in the water flow direction in the high-pressure cavity 44.

When the pressure in the high pressure chamber 44 does not exceed the limited pressure, the water pressure presses the relief check valve 41 against the relief hole 514, and the pressure stabilizing passage is closed. When the pressure in the high-pressure chamber 44 exceeds the limited pressure, water enters the pressure stabilizing channel from the buffer water inlet 513 under the action of pressure, then the valve plate 53 is pushed open, and the water pressure rushes out of the buffer pressure relief hole 514, so that the pressure relief check valve 41 is opened and flows back to the water storage chamber 45, and therefore the pressures of the low-pressure chamber 43, the high-pressure chamber 44, the water storage chamber 45 and the pressure stabilizing channel in the pump body can be guaranteed within the set required range, and the output pressure of the water outlet 52 of the pump is further guaranteed not to fluctuate due to the pressure change of the water inlet 51. The improvement of this structure can carry out the pressure release when water pressure surpasss confined pressure, seals the steady voltage passageway when not needing the pressure release, makes the pressure release process obtain better control, has reduced the energy loss of booster pump pressure release in-process, has practiced thrift the energy.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims

1. A high-stability constant-pressure structure of a booster pump comprises a fluid chamber support (1) and a fluid chamber (5) arranged on the fluid chamber support (1), wherein a diaphragm chamber (4), a diaphragm (3) and a piston frame (2) are sequentially arranged in the fluid chamber (5); one side of the fluid chamber (5) is provided with a water inlet (51), and the other side is provided with a water outlet (52); the hollow cavity formed between the diaphragm (3) and the diaphragm chamber (4) is a low-pressure cavity (43); a hollow cavity chamber formed by enclosing the middle parts of the diaphragm chamber (4) and the fluid chamber (5) is a high-pressure cavity (44); a hollow cavity between the diaphragm chamber (4) and the fluid chamber (5) except the high-pressure cavity (44) is a water storage cavity (45); a suction check valve (431) is arranged on the low-pressure cavity (43) on the diaphragm chamber (4), and a discharge check valve (441) is arranged on the high-pressure cavity (44) on the diaphragm chamber (4); a pressure stabilizing channel communicated with a water storage cavity (45) and a high-pressure cavity (44) is arranged between the upper part of the diaphragm chamber (4) and the fluid chamber (5) and on one side of the axes of the water inlet (51) and the water outlet (52), the pressure stabilizing channel comprises a buffering water inlet hole (513) and a buffering pressure relief hole (514), the buffering water inlet hole (513) is positioned in the center of the pressure stabilizing channel and communicated with the high-pressure cavity (44), and the buffering pressure relief hole (514) is positioned on one side of the buffering water inlet hole (513) and communicated with the water storage cavity (45); buffering inlet opening (513) and buffering pressure release hole (514) realize separable sealing connection through valve block (53) and spring structure (56) of top, its characterized in that, the position of high-pressure chamber (44) external diameter alignment buffering pressure release hole (514) at diaphragm chamber (4) sets up a pressure release check valve (41), pressure release check valve (41) and high-pressure chamber (44) outer lane enclose to close and form a sealed space for withstand buffering pressure release hole (514), and pressure release check valve (41) have elasticity, can open or be closed along with the water pressure size.

2. The high-stability constant-pressure structure of a booster pump according to claim 1, wherein an inner ring rib (512) is provided to an outer ring of the buffer water inlet hole (513).

3. The high stability constant pressure structure of the booster pump according to claim 1, wherein the spring structure (56) is provided with a pressure stabilizing cap (55) at an outer side thereof, and an outer side of the pressure stabilizing cap (55) is flush with a side surface of the fluid chamber (5).

4. The high-stability constant-pressure structure of a booster pump according to claim 1, wherein the pressure-relief check valve (41) is made of rubber.

5. The high-stability constant-pressure structure of a booster pump according to any one of claims 1 to 4, wherein the pressure-relief check valve (41) has a pillar (411) in the middle, the lower end of the pillar (411) has a boss (413), the boss (413) has a diameter larger than that of the pillar (411), the pillar (411) is caught in a catch groove (42) provided on the outer diameter of the high-pressure chamber of the diaphragm chamber (4), and the boss (413) of the lower end of the pillar (411) is left outside the lower end of the catch groove for fixing the pressure-relief check valve (41).

6. The high-stability constant-pressure structure of a booster pump according to claim 5, wherein an upper end of a strut (411) of the pressure-relief check valve (41) is an opening having a horn shape.

7. The high-stability constant-pressure structure of a booster pump according to claim 6, wherein the horn-shaped opening has a flat edge (412) at an edge thereof, and the flat edge (412) is adapted to fit a plane of the buffer pressure-releasing hole (514) to form a sealing structure.

8. The high stability constant pressure structure of a booster pump according to claim 7, wherein an inner side of the trumpet-shaped opening coincides with an outer diameter of the high pressure chamber (44) to form a sealing structure.

9. The high-stability constant-pressure structure of a booster pump according to claim 8, wherein an outer side of the trumpet-shaped opening is rounded.