Water purifier system using novel diaphragm pump

Abstract

The invention discloses a water purifier system using a novel diaphragm pump. The water purifier system comprises a water inlet electromagnetic valve, a front filter element, a booster pump head, a filter element, a water suction pump head, a first one-way valve, a rear filter element, a pressure switch and a water outlet valve which are connected in sequence, the booster pump further comprises a motor and a water storage device, the motor is a double-output-shaft motor, one output shaft is in transmission connection with the booster pump head, the other output shaft is in transmission connection with the water suction pump head, and the water suction pump head is connected with the water storage device. The dual functions of pressurizing the filter element assembly and rapidly pumping water from the water storage device can be achieved, and meanwhile the water purifier has great advantages in the aspects of cost, waterway complexity and size.

Description

Technical Field

[0001] The present invention relates to the technical field of water purifiers, and in particular to a water purifier system using a novel diaphragm pump. Background Art

[0002] With the improvement of the quality of life, water safety has become more and more of a concern for the people, and the use of water purifiers has become more and more common. In some small-flux water purification systems, municipal water is generally pressurized by a booster pump and filtered through a filtration system before being stored in a water storage device. When taking water for use, a pump is used to quickly extract water from the water storage device and discharge it from the faucet to avoid users having to wait due to long filtration time.

[0003] The above system requires a booster pump for boosting the filtration system and another pump for drawing water from the water storage system. These two pumps have different technical requirements due to different application scenarios. At the same time, the use of two pumps makes the water system complicated and the cost increases. Summary of the invention

[0004] In view of the above problems existing in the existing water purification system, the present invention aims to provide a water purifier system using a new diaphragm pump.

[0005] The specific technical solutions are as follows:

[0006] A water purifier system using a novel diaphragm pump comprises: a water inlet solenoid valve, a front filter element, a booster pump head, a filter element, a water pump head, a first check valve, a rear filter element, a high-pressure switch and a water outlet valve connected in sequence;

[0007] It also includes: a motor and a water storage device, wherein the motor is a dual-output shaft motor, wherein one of the output shafts is drivingly connected to the booster pump head, and the other output shaft is drivingly connected to the water pump head, and the water pump head is connected to the water storage device. When the water outlet valve is closed, the water pump head is used to transport the clean water filtered by the filter element to the water storage device for storage; when the water outlet valve is opened, the water pump head is used to transport the clean water stored in the water storage device and / or the clean water filtered by the filter element to the post-filter element.

[0008] Further, as a preferred embodiment, the water pump head comprises:

[0009] A pump body, wherein the pump body has a water inlet cavity and a water outlet cavity, and the pump body also has a first water outlet connected to the water outlet cavity and a water inlet connected to the water inlet cavity, the first water outlet is connected to the first one-way valve, and the water inlet is connected to the filter element;

[0010] A diaphragm pressurizing mechanism, the diaphragm pressurizing mechanism is arranged between the water inlet chamber and the water outlet chamber, and is used to pressurize the clean water in the water inlet chamber and then input it into the water outlet chamber;

[0011] Wherein, the pump body also has a second water outlet connected to the water inlet chamber, and the second water outlet is connected to the water storage device;

[0012] The pump body is provided with an overflow device, which includes an overflow chamber provided in the pump body, the bottom of the overflow chamber has a first through hole connected to the water inlet chamber, and a second through hole connected to the water outlet chamber, a sealing plate is slidably provided in the overflow chamber, and an elastic member is provided between the sealing plate and the top of the sealing chamber so that the sealing plate can block the first through hole and the second through hole, and when the hydraulic pressure in the water outlet chamber is greater than the elastic force of the elastic member, the sealing plate slides upward and releases the blockage of the first through hole and the second through hole, so that the clean water in the water outlet chamber flows into the water inlet chamber through the second through hole, the overflow chamber and the first through hole in sequence.

[0013] Furthermore, as a preferred embodiment, the elastic member is a spring, one end of the spring abuts against the blocking plate, and the other end of the spring abuts against the top of the overflow chamber.

[0014] Furthermore, as a preferred embodiment, the blocking plate and the overflow chamber form a sealed sliding fit.

[0015] Further, as a preferred embodiment, the diaphragm boosting mechanism includes at least one diaphragm groove provided at the bottom of the pump body;

[0016] Also includes:

[0017] A diaphragm, the diaphragm seals and covers the notch of the diaphragm groove, and forms a diaphragm cavity with the diaphragm groove, a second one-way valve is provided between the water inlet cavity and the diaphragm cavity, and a third one-way valve is provided between the diaphragm cavity and the water outlet cavity;

[0018] The plunger is connected to the diaphragm and can be operated to reciprocate in the longitudinal direction. When the plunger moves downward, negative pressure is formed in the diaphragm cavity, and the second one-way valve opens to allow the water in the water inlet cavity to flow into the diaphragm cavity in one direction. When the plunger moves upward, positive pressure is formed in the diaphragm cavity, and the third one-way valve opens to allow the water in the diaphragm cavity to flow into the water outlet cavity in one direction.

[0019] Further, as a preferred embodiment, the water inlet cavity is arranged around the water outlet cavity, and the diaphragm groove is provided in plurality and arranged at equal intervals along the circumferential direction; wherein the diaphragm sheet is provided at the notches of the plurality of diaphragm grooves, and respectively cooperates with the notches of the plurality of diaphragm grooves to block;

[0020] The diaphragm pressurizing mechanism also includes:

[0021] A support plate is installed on the pump body and located at the bottom of the diaphragm, used to support the diaphragm, and the support plate has a plurality of openings matching the diaphragm grooves, and the plunger is connected to the diaphragms at the plurality of openings respectively through a plurality of connectors.

[0022] Furthermore, as a preferred embodiment, the plunger is drivingly connected to an output shaft of the motor via a cam structure, and the motor drives the plunger to reciprocate longitudinally via the cam structure.

[0023] Furthermore, as a preferred embodiment, a water level controller is also provided in the water storage device, and the water level controller is connected to the water inlet solenoid valve and the motor signal, and is used to detect the water level in the water storage device to open or close the water inlet solenoid valve and start and stop the motor.

[0024] Furthermore, as a preferred embodiment, a concentrated water solenoid valve is also connected to the filter element.

[0025] Compared with the prior art, the above technical solution has the following positive effects:

[0026] (1) The water inlet system of the present invention is equipped with a dual-output shaft motor to simultaneously drive a booster pump head and a pump head. The two pump heads have different technical parameters and functions, and can achieve the dual functions of boosting the filter element assembly and quickly pumping water from the water storage device. At the same time, it has great advantages in cost, waterway complexity, and volume.

[0027] (2) In the present invention, when the water outlet valve is closed, the water pump head can transport the clean water filtered by the filter element to the water storage device for storage, thereby preventing high temperature caused by continuous circulation of water inside the water pump head, which may damage the seal of the water pump head and cause water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of a water purifier system using a novel diaphragm pump according to the present invention;

[0029] Figure 2 A cross-sectional view of a water pump head of a water purifier system using a novel diaphragm pump according to the present invention;

[0030] Figure 3 It is a structural schematic diagram of an overflow device of a water pump head of a water purifier system using a novel diaphragm pump according to the present invention;

[0031] Figure 4It is a structural schematic diagram of a water pump head of a water purifier system using a novel diaphragm pump according to the present invention;

[0032] In the attached figure: 1, water inlet solenoid valve; 2, front filter element; 3, booster pump head; 4, filter element; 5, water pump head; 6, first check valve; 7, rear filter element; 8, high pressure switch; 9, water outlet valve; 10, water storage device; 20, water level controller; 30, motor; 41, concentrated water solenoid valve; 51, water inlet chamber; 52, water outlet chamber; 53, first water outlet; 54, water inlet; 55, overflow device; 56 , diaphragm booster mechanism; 57, second water outlet; 58, pump body; 551, overflow chamber; 552, sealing plate; 553, elastic member; 554, second through hole; 555, first through hole; 561, second one-way valve; 562, diaphragm chamber; 563, third one-way valve; 564, support plate; 565, cam structure; 566, diaphragm; 567, plunger; 5641, opening; 5671, connecting piece. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0034] Figure 1 This is a schematic diagram of the structure of a water purifier system using a new diaphragm pump according to the present invention. Figure 2 This is a cross-sectional view of a water pump head of a water purifier system using a new diaphragm pump according to the present invention. Figure 3 This is a schematic diagram of the structure of an overflow device of a water pump head of a water purifier system using a new diaphragm pump according to the present invention. Figure 4 FIG. 1 is a schematic diagram of the structure of a water pump head of a water purifier system using a novel diaphragm pump according to the present invention. Figures 1 to 4 As shown, a water purifier system using a new diaphragm pump in a preferred embodiment is shown, including: a water inlet solenoid valve 1, a pre-filter element 2, a booster pump head 3, a filter element 4, a water pump head 5, a first non-return valve 6, a post-filter element 7, a high-pressure switch 8 and a water outlet valve 9 connected in sequence; it also includes: a motor 30 and a water storage device 10, the motor 30 is a double-output shaft motor 30, one output shaft of which is transmission-connected to the booster pump head 3, and the other output shaft of which is transmission-connected to the water pump head 5, the water pump head 5 is connected to the water storage device 10, when the water outlet valve 9 is closed, the water pump head 5 is used to transport the clean water filtered by the filter element 4 to the water storage device 10 for storage, and when the water outlet valve 9 is opened, the water pump head 5 is used to transport the clean water stored in the water storage device 10 and / or the clean water filtered by the filter element 4 to the post-filter element 7.

[0035] The water inlet system of this embodiment is equipped with a dual-output shaft motor 30 to simultaneously drive a booster pump head 3 and a water pump head 5. The two pump heads have different technical parameters and functions, and can achieve the dual functions of boosting the filter element assembly and quickly pumping water from the water storage device 10. At the same time, it has great advantages in cost, waterway complexity and volume.

[0036] In this embodiment, when the water outlet valve 9 is closed, the water pump head 5 can transport the clean water filtered by the filter element 4 to the water storage device 10 for storage, thereby avoiding high temperature caused by continuous circulation of water inside the water pump head 5, which may damage the seal of the water pump head 5 and cause water leakage.

[0037] Further, as a preferred embodiment, the water pump head 5 includes a pump body 58 and a diaphragm pressurizing mechanism 56, the pump body 58 has a water inlet chamber 51 and a water outlet chamber 52, the pump body 58 also has a first water outlet 53 connected to the water outlet chamber 52, and a water inlet 54 connected to the water inlet chamber 51, the first water outlet 53 is connected to the first one-way valve 6, the water inlet 54 is connected to the filter element 4, and the diaphragm pressurizing mechanism 56 is arranged between the water inlet chamber 51 and the water outlet chamber 52, and is used to pressurize the clean water in the water inlet chamber 51 and input it into the water outlet chamber 52; wherein, the pump body 58 also has a second water outlet 57 connected to the water inlet chamber 51, and the second water outlet 57 is connected to the water storage device 10; the pump body 58 is provided with an overflow device 55, which includes An overflow chamber 551 is enclosed in the pump body 58, and the bottom of the overflow chamber 551 has a first through hole 555 connected to the water inlet chamber 51, and a second through hole 554 connected to the water outlet chamber 52. A sealing plate 552 is slidably provided in the overflow chamber 551, and an elastic member 553 is provided between the sealing plate 552 and the top of the sealing chamber, so that the sealing plate 552 can block the first through hole 555 and the second through hole 554. When the hydraulic pressure in the water outlet chamber 52 is greater than the elastic force of the elastic member 553, the sealing plate 552 slides upward and releases the blockage of the first through hole 555 and the second through hole 554, so that the clean water in the water outlet chamber 52 flows into the water inlet chamber 51 through the second through hole 554, the overflow chamber 551, and the first through hole 555 in sequence.

[0038] In this embodiment, when the water outlet valve 9 is closed, in this scenario, there is no need for pressurization and synchronous operation with the water pump head 5, and the first water outlet 53 of the water pump head 5 is in a blocked state. In this mode, although the diaphragm 566 continues to reciprocate, if the external water source does not enter the pump body 58 to participate in the circulation, the internal water only circulates itself, which will cause the water temperature to rise sharply due to the repeated compression of the diaphragm 566, and then cause the diaphragm 566 to deform, be damaged or even leak at high temperature. To solve this problem, a second water outlet 57 is added. This design allows part of the water in the pump to be discharged through the second water outlet 57, while introducing new water to mix, thereby maintaining the fluidity of the water in the pump, and effectively dispersing and reducing the temperature of the diaphragm 566 when it is working, thereby ensuring that the diaphragm 566 in the pump is still stable and reliable in a high temperature environment, thereby extending the service life of the equipment.

[0039] Specifically, when the first water outlet 53 of the pump head 5 is in a blocked state, the water in the water outlet chamber 52 cannot be discharged from the first water outlet 53, and the pressure in the water outlet chamber 52 continues to increase. When the pressure reaches the preset pressure of the elastic member 553, the blocking plate 552 is pushed open, and the water flows into the water chamber 51 through the second through hole 554, the overflow chamber 551, and the first through hole 555 in turn, and is discharged from the second water outlet 57 together with another part of the incoming water, so that part of the clean water is discharged through the water outlet chamber 52, effectively avoiding the internal circulation of water in the chamber, which causes the diaphragm 566 to continue to reciprocate and make the water temperature too high, resulting in sealing failure and leakage.

[0040] Furthermore, as a preferred embodiment, the elastic member 553 is a spring, one end of the spring abuts against the blocking plate 552 , and the other end of the spring abuts against the top of the overflow chamber 551 .

[0041] Furthermore, as a preferred embodiment, the blocking plate 552 and the overflow chamber 551 form a sealed sliding fit.

[0042] Furthermore, as a preferred embodiment, the diaphragm boosting mechanism 56 includes at least one diaphragm groove arranged at the bottom of the pump body 58; it also includes: a diaphragm sheet 566 and a plunger 567, the diaphragm sheet 566 seals and covers the notch of the diaphragm groove, and forms a diaphragm cavity 562 between the diaphragm groove, a second one-way valve 561 is provided between the water inlet cavity 51 and the diaphragm cavity 562, and a third one-way valve 563 is provided between the diaphragm cavity 562 and the water outlet cavity 52, the plunger 567 is connected to the diaphragm sheet 566, and can be operated to reciprocate in the longitudinal direction, when the plunger 567 moves downward, a negative pressure is formed in the diaphragm cavity 562, the second one-way valve 561 opens, so that the water in the water inlet cavity 51 flows into the diaphragm cavity 562 in one direction, when the plunger 567 moves upward, a positive pressure is formed in the diaphragm cavity 562, and the third one-way valve 563 opens, so that the water in the diaphragm cavity 562 flows into the water outlet cavity 52 in one direction.

[0043] In the present embodiment, when the plunger 567 contracts backward, the diaphragm 566 is pulled backward synchronously, causing the volume of the diaphragm cavity 562 to increase, forming a negative pressure. At this time, under the action of external water pressure, the second one-way valve 561 automatically opens, allowing water to flow from the water inlet cavity 51 into the diaphragm cavity 562. Conversely, when the plunger 567 expands forward, it pushes the diaphragm 566 forward, compressing the space of the diaphragm cavity 562, generating a positive pressure, prompting the second one-way valve 561 to close and the third one-way valve 563 to open, so that water with a certain pressure is pushed to the water outlet cavity 52 and finally discharged from the first water outlet 53, thereby realizing the pressurization function. In particular, since the second water outlet 57 is connected to the water inlet cavity 51, water can be synchronously absorbed from the second water outlet 57 during operation, forming a circulating operation mode, effectively completing the continuous process of pumping and pressurizing.

[0044] Further, as a preferred embodiment, the water inlet cavity 51 is arranged around the circumference of the water outlet cavity 52, and a plurality of diaphragm grooves are provided and arranged at equal intervals along the circumferential direction; wherein the diaphragm sheet 566 is provided at the notches of the plurality of diaphragm grooves and respectively cooperates with the notches of the plurality of diaphragm grooves to block and seal;

[0045] The diaphragm booster mechanism 56 also includes a support plate 564, which is installed on the pump body 58 and located at the bottom of the diaphragm 566, for supporting the diaphragm 566, and has a plurality of openings 5641 matching the diaphragm grooves on the support plate 564, and the plunger 567 is respectively connected to the diaphragm 566 at the plurality of openings 5641 through a plurality of connectors 5671.

[0046] Furthermore, as a preferred embodiment, the plunger 567 is drivingly connected to an output shaft of the motor 30 via a cam structure 565 , and the motor 30 drives the plunger 567 to reciprocate in the longitudinal direction via the cam structure 565 .

[0047] More preferably, the structure of the boosting pump head 3 is substantially the same as that of the water-drawing pump head 5 , except that the boosting pump head 3 is not provided with an overflow device 55 and a second water outlet 57 .

[0048] Furthermore, as a preferred embodiment, a water level controller 20 is also provided in the water storage device 10. The water level controller 20 is connected to the water inlet solenoid valve 1 and the motor 30 signals, and is used to detect the water level in the water storage device 10 to open or close the water inlet solenoid valve 1 and start and stop the motor 30.

[0049] Furthermore, as a preferred embodiment, the filter element 4 is also connected to a concentrated water solenoid valve 41 .

[0050] Water storage procedure:

[0051] During the water storage stage, municipal tap water first enters the system through the water inlet solenoid valve 1, then flows through the pre-filter element 2 for preliminary filtration. The purified water enters the booster pump head 3, and after being pressurized in the pump head, enters the filter element 4 for further purification. During this process, concentrated water (i.e., wastewater containing more impurities) is discharged from the system through the concentrated water solenoid valve 41.

[0052] The purified water then enters the water pump head 5. Since the water outlet valve 9 is in a closed state, the purified water cannot be directly discharged through the first water outlet 53. At this time, the purified water is divided into two parts: one part directly passes through the water inlet chamber 51 of the water pump head 5 and enters the water storage device 10 through the second water outlet 57 for storage; the other part enters the water outlet chamber 52 through the diaphragm pressurization effect. As the pressure in the water outlet chamber 52 gradually increases, when the pressure value preset by the elastic member 553 is reached, the sealing plate 552 is pushed open, allowing water to flow into the water inlet chamber 51 through the second through hole 554, the overflow chamber 551, and the first through hole 555 in sequence, and finally enters the water storage device 10 through the second water outlet 57. This design effectively avoids the problem of overtemperature of the diaphragm 566 caused by water circulating in the pump, thereby protecting the sealing performance of the diaphragm 566 and preventing leakage.

[0053] The water storage device 10 is equipped with a water level controller 20. Once the water level reaches a high level, the controller sends a water full signal, and then closes the water inlet solenoid valve 1 and the motor 30, so that the system enters a standby state.

[0054] Water discharge procedure:

[0055] When water needs to be discharged, the water outlet valve 9 is opened, causing the high-pressure switch 8 to be turned on due to pressure loss, thereby triggering the water inlet solenoid valve 1 to open and the motor 30 to work. Similar to the water storage procedure, the tap water enters the water pump head 5 after filtration and pressurization. Since the second water outlet 57 is connected to the water inlet chamber 51, under the action of the diaphragm pressurization, the pump head can simultaneously extract fresh clean water from the filter element 4 and stored clean water in the water storage device 10. The clean water then passes through the first one-way valve 6, the post-filter element 7, the high-pressure switch 8 and the water outlet valve 9, and is finally discharged from the clean water outlet, thereby realizing a large-throughput clean water supply.

[0056] If the water outlet valve 9 is closed during use, the high pressure switch 8 will disconnect due to the pressure increase. At this time, if the water level of the water storage device 10 has not reached the high level, the water level controller 20 will send a water shortage signal, and the water purifier will automatically restart the water storage program to replenish water. On the contrary, if the water storage device 10 is full, the system will continue to remain in standby mode and wait for the next water outlet instruction.

[0057] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A water purifier system using a new diaphragm pump, characterized in that: include: The water inlet solenoid valve, the front filter element, the booster pump head, the filter element, the water pump head, the first check valve, the rear filter element, the high pressure switch and the water outlet valve are connected in sequence; It also includes: a motor and a water storage device, wherein the motor is a dual-output shaft motor, wherein one of the output shafts is drivingly connected to the booster pump head, and the other output shaft is drivingly connected to the water pump head, and the water pump head is connected to the water storage device. When the water outlet valve is closed, the water pump head is used to transport the clean water filtered by the filter element to the water storage device for storage; when the water outlet valve is opened, the water pump head is used to transport the clean water stored in the water storage device and / or the clean water filtered by the filter element to the post-filter element.

2. The water purifier system using the new diaphragm pump according to claim 1, characterized in that: The water pump head comprises: A pump body, wherein the pump body has a water inlet cavity and a water outlet cavity, and the pump body also has a first water outlet connected to the water outlet cavity and a water inlet connected to the water inlet cavity, the first water outlet is connected to the first one-way valve, and the water inlet is connected to the filter element; A diaphragm pressurizing mechanism, the diaphragm pressurizing mechanism is arranged between the water inlet chamber and the water outlet chamber, and is used to pressurize the clean water in the water inlet chamber and then input it into the water outlet chamber; Wherein, the pump body also has a second water outlet connected to the water inlet chamber, and the second water outlet is connected to the water storage device; The pump body is provided with an overflow device, which includes an overflow chamber provided in the pump body, the bottom of the overflow chamber has a first through hole connected to the water inlet chamber, and a second through hole connected to the water outlet chamber, a sealing plate is slidably provided in the overflow chamber, and an elastic member is provided between the sealing plate and the top of the sealing chamber so that the sealing plate can block the first through hole and the second through hole, and when the hydraulic pressure in the water outlet chamber is greater than the elastic force of the elastic member, the sealing plate slides upward and releases the blockage of the first through hole and the second through hole, so that the clean water in the water outlet chamber flows into the water inlet chamber through the second through hole, the overflow chamber and the first through hole in sequence.

3. The water purifier system using the new diaphragm pump according to claim 2 is characterized in that: The elastic member is a spring, one end of which abuts against the blocking plate, and the other end of which abuts against the top of the overflow chamber.

4. The water purifier system using the new diaphragm pump according to claim 2, characterized in that: The blocking plate and the overflow chamber form a sealed sliding fit.

5. The water purifier system using the new diaphragm pump according to claim 2, characterized in that: The diaphragm boosting mechanism comprises at least one diaphragm groove provided at the bottom of the pump body; Also includes: A diaphragm, the diaphragm seals and covers the notch of the diaphragm groove, and forms a diaphragm cavity with the diaphragm groove, a second one-way valve is provided between the water inlet cavity and the diaphragm cavity, and a third one-way valve is provided between the diaphragm cavity and the water outlet cavity; The plunger is connected to the diaphragm and can be operated to reciprocate in the longitudinal direction. When the plunger moves downward, negative pressure is formed in the diaphragm cavity, and the second one-way valve opens to allow the water in the water inlet cavity to flow into the diaphragm cavity in one direction. When the plunger moves upward, positive pressure is formed in the diaphragm cavity, and the third one-way valve opens to allow the water in the diaphragm cavity to flow into the water outlet cavity in one direction.

6. The water purifier system using the novel diaphragm pump according to claim 5, characterized in that: The water inlet cavity is arranged around the water outlet cavity, and a plurality of diaphragm grooves are arranged at equal intervals along the circumferential direction; wherein the diaphragm sheet is arranged at the notches of the plurality of diaphragm grooves, and respectively cooperates with the notches of the plurality of diaphragm grooves to seal; The diaphragm pressurizing mechanism also includes: A support plate is installed on the pump body and located at the bottom of the diaphragm, used to support the diaphragm, and the support plate has a plurality of openings matching the diaphragm grooves, and the plunger is connected to the diaphragms at the plurality of openings respectively through a plurality of connectors.

7. The water purifier system using the novel diaphragm pump according to claim 6, characterized in that: The plunger is drivingly connected to an output shaft of the motor via a cam structure, and the motor drives the plunger to reciprocate longitudinally via the cam structure.

8. The water purifier system using the novel diaphragm pump according to claim 7, characterized in that: A water level controller is also provided in the water storage device. The water level controller is connected to the water inlet solenoid valve and the motor signal and is used to detect the water level in the water storage device to open or close the water inlet solenoid valve and start and stop the motor.

9. The water purifier system using the novel diaphragm pump according to claim 1, characterized in that: The filter element is also connected to a concentrated water electromagnetic valve.

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