Diaphragm pump and water treatment equipment

Abstract

The utility model discloses a diaphragm pump and water treatment equipment, and relates to the technical field of water treatment.The diaphragm pump comprises a valve seat and a diaphragm, and the valve seat is concavely provided with a plurality of containing grooves arranged at intervals; the diaphragm is arranged on the side, provided with the containing grooves, of the valve seat, and the diaphragm and the containing grooves jointly define a plurality of pressurizing cavities. A sealing structure is arranged between the diaphragm and the valve seat and comprises first sealing structures correspondingly arranged on the peripheries of the containing grooves in a surrounding mode, and each first sealing structure comprises a plurality of first protruding ribs arranged on one of the diaphragm and the valve seat and a plurality of sealing grooves formed in the other one of the diaphragm and the valve seat. According to the diaphragm pump, the pressurizing cavities can be sealed respectively, leakage, channeling and instability of media between every two adjacent pressurizing cavities are avoided, normal and efficient operation of the diaphragm pump is guaranteed, and potential safety hazards caused by the fact that the media in the pressurizing cavities overflow outwards to a motor and a circuit control element in the pump shell are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, and particularly relates to a diaphragm pump and a water treatment device. Background Art

[0002] Due to the microbubble washing of domestic water, it has a good effect on removing pesticide residues and bacteria and viruses on fruits and vegetables. Changing the domestic water of the water purifier into microbubbly water has become a mainstream trend. The microbubble pump sucks air and tap water into the microbubble water circuit system at the same time, pressurizes to dissolve the air in the water, and then decompresses and releases the air, and the air is released again to generate a large number of microbubbles. The microbubble pump plays three major functions of pumping water, inhaling air, and pressurizing in the microbubble system, and is crucial in the entire microbubble water circuit system. Compared with the system using two pumps of a water pump and an air pump, the complexity of the system is reduced and the cost is saved.

[0003] At present, in the working process of each pressurizing chamber of the electric diaphragm pump in the microbubble water circuit system, an effective pressure needs to be established to ensure the flow rate and efficiency. At the same time, since the motor is arranged inside the pump housing, if the water in the pressurizing chamber overflows, it will damage the motor and the circuit control components, bringing potential safety hazards. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose a diaphragm pump and a water treatment device, aiming to provide a diaphragm pump with good sealing performance.

[0005] To achieve the above object, the diaphragm pump proposed by the utility model includes:

[0006] A valve seat, the valve seat is recessed with a plurality of accommodating grooves arranged at intervals; and,

[0007] A diaphragm, arranged on one side of the valve seat where the plurality of accommodating grooves are provided, and jointly enclosing a plurality of pressurizing chambers with the plurality of accommodating grooves;

[0008] Wherein, a sealing structure is arranged between the diaphragm and the valve seat, the sealing structure includes a first sealing structure correspondingly arranged around the periphery of each of the accommodating grooves, the first sealing structure includes a plurality of first ribs arranged on one of the diaphragm and the valve seat, and a plurality of sealing grooves arranged on the other.

[0009] In an embodiment, the plurality of first ribs are connected as a whole, and the plurality of sealing grooves are communicated.

[0010] In an embodiment, the plurality of accommodating grooves are arranged at intervals along the circumferential direction of the valve seat;

[0011] The multiple first ribs include an inner annular first rib, an outer annular first rib, and a plurality of connecting first ribs. The inner annular first rib is correspondingly arranged in the inner peripheral area of the multiple receiving grooves. The outer annular first rib is correspondingly arranged around the outer peripheral area of the multiple receiving grooves. Each of the connecting first ribs is connected between the inner annular first rib and the outer annular first rib and is correspondingly located at the interval between two adjacent receiving grooves.

[0012] The multiple sealing grooves include an inner annular groove section, an outer annular groove section, and a plurality of connecting groove sections. The inner annular groove section is arranged in the inner peripheral area of the multiple receiving grooves. The outer annular groove section is arranged around the outer peripheral area of the multiple receiving grooves. Each of the connecting groove sections is connected between the inner annular groove section and the outer annular groove section and is located at the interval between two adjacent receiving grooves.

[0013] In one embodiment, the multiple first ribs are in interference fit with the multiple sealing grooves.

[0014] In one embodiment, the sealing structure further includes a second rib structure provided on the side of the valve seat facing the diaphragm. The second rib structure is arranged around each of the receiving cavities.

[0015] In one embodiment, the second rib structure includes a plurality of second ribs. The plurality of second ribs are arranged at intervals along the circumferential direction of the valve seat. Each of the second ribs is arranged around the corresponding receiving groove.

[0016] In one embodiment, the sealing structure further includes a third rib provided on the side of the valve seat facing the diaphragm. The third rib is arranged around the multiple receiving grooves and the second rib structure.

[0017] In one embodiment, the third rib is provided on the bottom of the sealing groove located around the multiple receiving grooves.

[0018] In one embodiment, the diaphragm pump further includes a mounting bracket provided on the side of the valve seat facing the diaphragm.

[0019] The diaphragm is arranged between the mounting bracket and the valve seat.

[0020] In one embodiment, a mounting groove is recessed on the side of the mounting bracket facing the valve seat. A plurality of through holes penetrate through the bottom of the mounting groove.

[0021] The diaphragm is received in the mounting groove. The diaphragm includes a bottom and an annular side portion extending from the outer peripheral edge of its bottom towards the valve seat.

[0022] The valve seat has a side wall provided on the inner side of the annular side portion, and the annular side portion is clamped between the side wall of the valve seat and the inner side wall of the mounting groove.

[0023] The present utility model also provides a water treatment device, which includes a diaphragm pump, and the diaphragm pump includes:

[0024] A valve seat, which is recessed with a plurality of accommodating grooves arranged at intervals; and,

[0025] A diaphragm, which is arranged on the side of the valve seat where the plurality of accommodating grooves are provided, and together with the plurality of accommodating grooves, forms a plurality of pressurizing chambers;

[0026] Wherein, a sealing structure is provided between the diaphragm and the valve seat, and the sealing structure includes a first sealing structure corresponding to and annularly arranged around the periphery of each of the accommodating grooves. The first sealing structure includes a plurality of first ribs provided on one of the diaphragm and the valve seat, and a plurality of sealing grooves provided on the other.

[0027] In the technical solution of the present utility model, a plurality of independently operating pressurizing chambers are formed jointly between the valve seat and the diaphragm. By providing the sealing cooperation between the plurality of first ribs and the plurality of sealing grooves, each of the pressurizing chambers can be sealed respectively, avoiding the leakage, flow-through and instability of the medium between two adjacent pressurizing chambers arranged adjacent to each other, so as to ensure the normal and efficient operation of the diaphragm pump, and also avoid the safety hazards brought by the medium in each pressurizing chamber overflowing outwards into the motor and circuit control components in the pump housing, so as to provide a diaphragm pump with good sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0029] Figure 1 It is a schematic structural diagram of an embodiment of the diaphragm pump provided by the present utility model;

[0030] Figure 2 For Figure 1 The cross-sectional schematic diagram of the diaphragm pump in

[0031] Figure 3 For Figure 1 The schematic structural diagram after the assembly of the mounting bracket, the diaphragm and the valve seat in

[0032] Figure 4 For Figure 3Top view schematic diagram;

[0033] Figure 5 is Figure 4 Schematic cross-sectional view taken along line A-A in;

[0034] Figure 6 is Figure 5 Schematic structural diagram of the diaphragm in;

[0035] Figure 7 is Figure 5 Schematic structural diagram of the valve seat in;

[0036] Figure 8 is Figure 7 Enlarged schematic view at position C in.

[0037] Explanation of the reference numerals in the drawings:

[0038] 100, diaphragm pump; 1, valve seat; a, receiving groove; b, sealing groove; b1, inner annular groove section; b2, outer annular groove section; b3, connecting groove section; 12, second rib structure; 121, second rib; 13, third rib; 2, diaphragm; 21, first rib; 211, inner annular first rib; 212, outer annular first rib; 213, connecting first rib; 22, bottom; 23, annular side; 3, mounting bracket; 3a, mounting groove.

[0039] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0041] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0042] In addition, if the embodiments of the present utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or is unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0043] Due to the microbubble washing of domestic water, it has a good effect on removing pesticide residues and bacteria and viruses on fruits and vegetables. Changing the domestic water of the water purifier into microbubbly water has become a mainstream trend. The microbubble pump simultaneously sucks air and tap water into the microbubble water circuit system, pressurizes to dissolve the air in the water, and then decompresses and releases the gas, and the air is released again to generate a large number of microbubbles. The microbubble pump plays three major functions of pumping water, sucking air, and pressurizing in the microbubble system, and is crucial in the entire microbubble water circuit system. Compared with the system using two pumps, namely a water pump and an air pump, it reduces the complexity of the system and saves costs. Currently, during the working process of each pressurizing chamber of the electric diaphragm pump in the microbubble water circuit system, an effective pressure needs to be established to ensure the flow rate and efficiency. At the same time, since the motor is arranged inside the pump housing, if the water in the pressurizing chamber overflows, it will damage the motor and the circuit control components, bringing potential safety hazards.

[0044] The present utility model provides a diaphragm pump, aiming to provide a diaphragm pump with good sealing performance.

[0045] Please refer to Figure 1 , in an embodiment of the present utility model, the diaphragm pump 100 includes a valve seat 1 and a diaphragm 2. The valve seat 1 is recessed with a plurality of accommodating grooves a arranged at intervals; the diaphragm 2 is arranged on the side of the valve seat 1 where the plurality of accommodating grooves a are provided, and together with the plurality of accommodating grooves a, forms a plurality of pressurizing chambers; wherein, a sealing structure is arranged between the diaphragm 2 and the valve seat 1. The sealing structure includes a first sealing structure corresponding to and annularly arranged around the periphery of each accommodating groove a. The first sealing structure includes a plurality of first ribs 21 arranged on one of the diaphragm 2 and the valve seat 1, and a plurality of sealing grooves b arranged on the other.

[0046] It should be noted that the diaphragm pump 100 is provided with a liquid inlet hole and a liquid outlet hole on each of the pressurizing chambers. When the diaphragm 2 is squeezed, the volume of the pressurizing chamber becomes smaller, and the medium in the pressurizing chamber is discharged. When the diaphragm 2 moves away from the valve seat 1 and deforms, the volume of the pressurizing chamber becomes larger, and the medium in the liquid inlet pipe is sucked into the pressurizing chamber. Since the pressurizing chamber is formed by enclosing the valve seat 1 and the diaphragm 2, the sealing degree between the valve seat 1 and the diaphragm 2 determines the sealing degree of the pressurizing chamber. It can be understood that when the diaphragm pump 100 processes water, the medium is water. For the convenience of description hereinafter, the medium is water and will be described in detail.

[0047] It can be understood that the diaphragm 2 can be deformably arranged, and the material of the diaphragm 2 is set as an elastic material, such as rubber, PVC, PTFE, etc.

[0048] It should also be noted that in order to provide a greater flux, the diaphragm pump 100 in this solution can be set as a five-chamber diaphragm pump 100. It can be understood that the features of the diaphragm pump 100 described hereinafter are not limited to being applied to the five-chamber diaphragm pump 100, but can also be applied to diaphragm pumps 100 with different numbers of chambers, which can be specifically determined according to the actual situation, and the embodiments of this specification do not limit this.

[0049] It can be understood that the number of the first ribs 21 is related to the number of the pressurizing chambers formed by the diaphragm pump 100. When the diaphragm pump is set as a five-chamber diaphragm pump, at least one of the first ribs 21 is arranged between the pressurizing chambers to ensure that each pressurizing chamber can work independently and normally.

[0050] In a diaphragm pump, the design of the pressurizing chambers is usually independent and sealed. The main purpose of this design is to ensure that each chamber can be independently pressurized and depressurized, so as to realize the continuous flow of the pumped medium. If the multiple pressurizing chambers are not independently sealed, the following effects will be brought: Reduced efficiency: When the pressurizing chambers are not independently sealed, the pressures between the chambers may affect each other, resulting in the pressure in one or more chambers unable to be effectively established or maintained, which will reduce the output pressure and flow rate of the pump and lower the overall efficiency of the pump. Unstable flow: The non-independent sealing between the pressurizing chambers will cause uneven distribution of the fluid between the chambers, resulting in flow fluctuations and affecting the stability and predictability of the pumping process. Therefore, it is particularly important to ensure the sealing of each pressurizing chamber.

[0051] In the technical solution of the present utility model, a plurality of independently operating pressurizing chambers are jointly enclosed between the valve seat 1 and the diaphragm 2. By providing the plurality of first ribs 21 and the plurality of sealing grooves b in sealing cooperation, each of the pressurizing chambers can be sealed separately, avoiding the leakage, flow-through and instability of the medium between two adjacent pressurizing chambers arranged adjacent to each other, so as to ensure the normal and efficient operation of the diaphragm pump 100. Moreover, it also avoids the safety hazards brought by the medium in each pressurizing chamber spilling outwards into the motor and circuit control components in the pump housing, so as to provide a diaphragm pump 100 with good sealing performance.

[0052] Further, in this embodiment, the plurality of first ribs 21 are connected as a whole, and the plurality of sealing grooves b are communicated.

[0053] It can be understood that the widths and heights of the first ribs 21 are set to be the same, and the groove widths and groove depths of the sealing grooves b are also set to be the same. By connecting the plurality of first ribs 21 to each other as a whole and communicating the plurality of sealing grooves b that are sealingly matched therewith correspondingly, the pressure distribution between the diaphragm 2 and the valve seat 1 becomes more uniform, avoiding local pressure concentration. At the same time, a larger contact area can be formed, enhancing the sealing performance between the valve seat 1 and the diaphragm 2, reducing the risk of leakage, and improving the consistency of the sealing effect.

[0054] Further, in this embodiment, the plurality of receiving grooves a are arranged at intervals along the circumferential direction of the valve seat 1; the plurality of first ribs 21 include an inner annular first rib 211, an outer annular first rib 212, and a plurality of connecting first ribs 213. The inner annular first rib 211 is correspondingly arranged in the inner peripheral area of the plurality of receiving grooves a, the outer annular first rib 212 is correspondingly arranged around the outer peripheral area of the plurality of receiving grooves a, and each of the connecting first ribs 213 is connected between the inner annular first rib 211 and the outer annular first rib 212 and is correspondingly located at the interval between two adjacent receiving grooves a.

[0055] The plurality of sealing grooves b include an inner annular groove section b1, an outer annular groove section b2, and a plurality of connecting groove sections b3. The inner annular groove section b1 is arranged in the inner peripheral area of the plurality of receiving grooves a and cooperates with the inner annular first rib 211. The outer annular groove section b2 is arranged around the outer peripheral area of the plurality of receiving grooves a and cooperates with the outer annular first rib 212. Each of the connecting groove sections b3 is connected between the inner annular groove section b1 and the outer annular groove section b2 and is located at the interval between two adjacent receiving grooves a to cooperate with the corresponding connecting first rib 213.

[0056] In this way, each of the connecting first ribs 213 can correspond to the position between two adjacent receiving grooves a, and can simultaneously serve as a sealed structure separating the two receiving grooves a. The structure is simple and the molding is also simple.

[0057] Specifically, in this embodiment, the plurality of first ribs 21 are in interference fit with the plurality of sealing grooves b. The interference fit means that the size of the first rib 21 is slightly larger than the size of the sealing groove b. In this way, extrusion will occur during installation, so that close contact is formed between the plurality of first ribs 21 on the diaphragm 2 and the plurality of sealing grooves b, thereby providing a good sealing effect.

[0058] Furthermore, in order to form a stronger sealing effect between the valve seat 1 and the diaphragm 2, in this embodiment, the sealing structure further includes a second rib structure 12 provided on the side of the valve seat 1 facing the diaphragm 2, and the second rib structure 12 is provided on the periphery of each receiving cavity.

[0059] Since the second rib structure 12 protrudes from the end face of the valve seat 1 and the material of the diaphragm 2 is elastic, when the valve seat 1 and the diaphragm 2 are installed, when the end face of the valve seat 1 is in contact with the diaphragm 2, the second rib structure 12 presses the diaphragm 2. Through the pressing action of the second rib structure 12 and the elastic deformation of the diaphragm 2, the sealing performance between the two is further enhanced, preventing water leakage and improving the sealing performance and reliability of the valve.

[0060] The second rib structure 12 is directly formed on the valve seat 1. When the valve seat 1 is molded, the second rib structure 12 can be directly molded without setting additional components. The manufacturing process is simple, the cost is low, and the assembly is also convenient.

[0061] Specifically, in this embodiment, the second rib structure 12 includes a plurality of second ribs 121, and the plurality of second ribs 121 are arranged at intervals along the circumferential direction of the valve seat 1, and each second rib 121 is arranged on the periphery of the corresponding receiving groove a.

[0062] It can be understood that, in this embodiment, each of the second ribs 121 can be arranged in the area within the corresponding sealing groove b, and the second ribs 121 are independently arranged with respect to each other. The connecting groove section b3 is arranged at the position between two adjacent second ribs 121.

[0063] Of course, in other embodiments, the second rib 121 may protrude to a relatively high height. A connection groove section b3 is defined between two adjacent second ribs 121 arranged adjacent to each other, and a plurality of sealing grooves b are defined between the plurality of second ribs 121. It can be understood that the cross-section of the second rib 121 may be set as a regular rectangle, or a rectangle with chamfers, or an irregular shape, such as a trapezoid, so that the width dimension of the top of the second rib 121 is smaller, and when it abuts against the diaphragm 2, a smaller contact surface can be formed, increasing the sealing performance.

[0064] Furthermore, in order to prevent the media in the plurality of pressure boosting chambers from overflowing outward and causing the external circuit control components to be damaged by moisture, in this embodiment, the sealing structure further includes a third rib 13 provided on one side of the valve seat 1 facing the diaphragm 2. The third rib 13 is disposed around the plurality of receiving grooves a and the second rib structure 12. In this way, the third rib 13 is also formed integrally with the valve seat 1, which not only enables the third rib 13 to form a sealed structure when the valve seat 1 is formed, but only needs to ensure the sealing performance between the third rib 13 and the diaphragm 2 during assembly. When the third rib 13 is formed separately, in addition to ensuring the sealing performance between the third rib 13 and the diaphragm 2, it is also necessary to ensure the sealing performance between the third rib 13 and the valve seat 1. The sealing structure and forming process in this embodiment are simple, with low cost and convenient assembly.

[0065] Furthermore, in this embodiment, the third rib 13 is provided on the bottom of the sealing groove b located around the plurality of receiving grooves a. In this way, the plurality of second ribs 121 and the third rib 13 are not disposed on the same end face plane, and a drop is formed between the third rib 13 and the plurality of second ribs 121. When the diaphragm pump 100 leaks water, the leakage path is extended, and the anti-leakage effect can be further improved.

[0066] Furthermore, in this embodiment, the diaphragm pump 100 further includes a mounting bracket 3 provided on one side of the valve seat 1 facing the diaphragm 2; the diaphragm 2 is disposed between the mounting bracket 3 and the valve seat 1. In this way, the diaphragm 2 is clamped between the mounting bracket 3 and the valve seat 1. Through the clamping force between the mounting bracket 3 and the valve seat 1, the diaphragm 2 can be fixed. When the diaphragm 2 is damaged and needs to be replaced or repaired, the valve seat 1 can be disassembled, and the diaphragm 2 can be directly replaced and repaired. The disassembly and assembly are simple, and the maintenance is convenient.

[0067] Moreover, since the diaphragm 2 is subjected to the clamping force between the mounting bracket 3 and the valve seat 1, adjusting the locking degree between the mounting bracket 3 and the valve seat 1 can adjust the clamping force for pressing the diaphragm 2, which is convenient for adjustment.

[0068] Furthermore, in this embodiment, a mounting groove 3a is recessed on one side of the mounting bracket 3 facing the valve seat 1, and a plurality of through holes penetrate through the bottom of the mounting groove 3a; the diaphragm 2 is received in the mounting groove 3a, and the diaphragm 2 includes a bottom 22 and an annular side portion 23 extending from the outer peripheral edge of its bottom 22 towards the valve seat 1; the valve seat 1 has a side wall provided on the inner side of the annular side portion 23, and the annular side portion 23 is clamped between the side wall of the valve seat 1 and the inner side wall of the mounting groove 3a.

[0069] It should be noted that providing a plurality of the through holes on the mounting bracket 3 can facilitate the plurality of driving portions of the driving mechanism to pass through the plurality of through holes and be connected to the diaphragm 2, so as to drive the diaphragm 2 to move and deform, realizing the extrusion and deformation of the corresponding pressure increasing chamber.

[0070] The diaphragm 2 is received in the mounting groove 3a, the diaphragm 2 is supported on the bottom of the mounting groove 3a, the outer side wall of the annular side portion 23 of the diaphragm 2 can be in contact with the inner side wall of the mounting groove 3a, and the inner side wall of the inner side of the annular side portion 23 of the diaphragm 2 is in contact with the side wall of the valve seat 1, so that the annular side portion 23 of the diaphragm 2 can be clamped between the side wall of the valve seat 1 and the inner side wall of the mounting groove 3a. It can be understood that the annular side portion 23 can be set to have an interference fit with the valve seat 1 and the mounting bracket 3, that is, the outer diameter of the annular side portion 23 is set to be slightly larger than the inner diameter of the mounting groove 3a, and the inner diameter of the annular side portion 23 is set to be slightly smaller than the outer diameter of the outer side wall of the valve seat 1.

[0071] Furthermore, in order to further ensure the sealing effect, in this embodiment, a ring-shaped protrusion is convexly provided on the side wall of the valve seat 1, the annular side portion 23 protrudes beyond the ring-shaped protrusion, a ring-shaped groove is defined between the side wall of the valve seat 1 and the inner side wall of the mounting groove 3a, and a ring-shaped seal is provided in the ring-shaped groove. The ring-shaped seal abuts against the protruding end face of the annular side portion 23, and an adjustment structure can be provided between the ring-shaped seal and the inner wall of the ring-shaped groove, so that the ring-shaped seal can abut against the annular side portion 23, and the ring-shaped seal can be pressed against the annular side portion 23 through the adjustment structure, so that the thickness of the annular side portion 23 in the radial direction of the valve seat 1 can become larger, and better seal between the side wall of the valve seat 1 and the inner side wall of the mounting groove 3a can be achieved.

[0072] The present invention also provides a water treatment device, which includes a filtration device and a diaphragm pump 100. The specific structure of the diaphragm pump 100 refers to the above embodiments. Since this water treatment device adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated herein one by one.

[0073] The water treatment device may be a microbubble generation system, and the diaphragm pump 100 may be applied to the microbubble generation system. The microbubble generation system includes: a diaphragm pump 100, a gas mixing tank, a bubbler, and an air inlet valve. The diaphragm pump 100, the gas mixing tank, and the bubbler are connected in series in sequence. That is to say, the gas mixing tank is connected between the diaphragm pump 100 and the bubbler, and the gas mixing tank is communicated with both the diaphragm pump 100 and the bubbler. The gas mixing tank can be communicated with the diaphragm pump 100 through a connecting pipe, or can be communicated with the bubbler through a connecting pipe. The diaphragm pump 100 is adapted to be communicated with the liquid inlet of the water purification device. The diaphragm pump 100 can be communicated with the liquid inlet of the water purification device through a connecting pipe. The bubbler is adapted to be communicated with the liquid outlet of the water purification device. The bubbler can be communicated with the liquid outlet of the water purification device through a connecting pipe. Tap water flows into the bubble generation system from the liquid inlet of the water purification device and then passes through the diaphragm pump 100, the gas mixing tank, and the bubbler in sequence. Finally, the water flows out of the water purification device from the liquid outlet of the water purification device.

[0074] The air inlet valve is connected to the diaphragm pump 100 and is adapted to communicate the diaphragm pump 100 and the air inlet of the water purification device. The air inlet valve can be communicatively connected to the controller of the water purification device. The air inlet valve is connected between the air inlet of the water purification device and the diaphragm pump 100. When the controller controls the air inlet valve to open, the air inlet valve communicates the diaphragm pump 100 and the air inlet of the water purification device. When tap water flows into the diaphragm pump 100, gas can flow into the diaphragm pump 100 through the air inlet valve. When the controller controls the air inlet valve to close, the air inlet valve cuts off the air inlet of the diaphragm pump 100 and the water purification device. At this time, the air inlets of the diaphragm pump 100 and the water purification device are not communicated, and gas cannot flow into the diaphragm pump 100 through the air inlet valve. When tap water and gas flow into the diaphragm pump 100 simultaneously, they can converge into a flow path and flow towards the gas mixing tank.

[0075] It should be noted that in this embodiment, the diaphragm pump 100 is composed of a plastic-encapsulated variable-frequency motor and a microbubble pump head. The microbubble pump head includes the above-mentioned mounting bracket 3, diaphragm 2, and valve seat 1. The high-voltage live body in the motor is integrally injection-molded with BMC to eliminate the safety problem of electric leakage. Small current can achieve high power and large flux. The motor adopts a variable-frequency motor without carbon brush wear to achieve a long service life. The short and fat motor structure design results in a smaller shaft deflection when the pump head runs eccentrically, and the whole pump obtains a better silent experience.

[0076] The above are only exemplary embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A diaphragm pump, characterized in that: include: A valve seat, wherein the valve seat is recessed with a plurality of accommodating grooves arranged at intervals; and A diaphragm is disposed on one side of the valve seat where the plurality of accommodating grooves are disposed, and is enclosed with the plurality of accommodating grooves to form a plurality of pressurizing chambers; A sealing structure is provided between the diaphragm and the valve seat, and the sealing structure includes a first sealing structure correspondingly arranged on the periphery of each of the accommodating grooves, and the first sealing structure includes a plurality of first ribs arranged on one of the diaphragm and the valve seat, and a plurality of sealing grooves arranged on the other.

2. The diaphragm pump according to claim 1, characterized in that The plurality of first ribs are connected as a whole, and the plurality of sealing grooves are connected.

3. The diaphragm pump according to claim 2, characterized in that The plurality of accommodating grooves are arranged at intervals along the circumference of the valve seat; The plurality of first convex ribs include an inner annular first convex rib, an outer annular first convex rib, and a plurality of connecting first convex ribs, wherein the inner annular first convex rib is correspondingly arranged in the inner surrounding area of ​​the plurality of receiving grooves, the outer annular first convex rib is correspondingly arranged in the outer surrounding area of ​​the plurality of receiving grooves, and each of the connecting first convex ribs is connected between the inner annular first convex rib and the outer annular first convex rib, and is correspondingly located at the interval between two adjacent receiving grooves; The multiple sealing grooves include an inner annular groove segment, an outer annular groove segment, and a plurality of connecting groove segments. The inner annular groove segment is arranged in an inner peripheral area of ​​the multiple accommodating grooves, and the outer annular groove segment is arranged in an outer peripheral area of ​​the multiple accommodating grooves. Each of the connecting groove segments is connected between the inner annular groove segment and the outer annular groove segment, and is located at the interval between two adjacent accommodating grooves.

4. The diaphragm pump according to claim 1, characterized in that The plurality of first ribs are interference fit with the plurality of sealing grooves.

5. The diaphragm pump according to claim 1, characterized in that: The sealing structure further comprises a second rib structure arranged on a side of the valve seat facing the diaphragm, and the second rib structure is arranged on the periphery of each of the accommodating grooves.

6. The diaphragm pump according to claim 5, characterized in that The second convex rib structure includes a plurality of second convex ribs, and the plurality of second convex ribs are arranged at intervals along the circumference of the valve seat, and each of the second convex ribs is arranged at the periphery of the corresponding accommodating groove.

7. The diaphragm pump according to claim 5, characterized in that The sealing structure further comprises a third rib arranged on a side of the valve seat facing the diaphragm, and the third rib is arranged around the periphery of the plurality of accommodating grooves and the second rib structure.

8. The diaphragm pump according to claim 7, characterized in that The third rib is arranged on the groove bottom of the sealing groove located at the periphery of the plurality of accommodating grooves.

9. The diaphragm pump according to claim 1, characterized in that: The diaphragm pump also includes a mounting bracket arranged on a side of the valve seat facing the diaphragm; The diaphragm is arranged between the mounting bracket and the valve seat.

10. The diaphragm pump according to claim 9, characterized in that A mounting groove is concavely formed on one side of the mounting bracket facing the valve seat, and a plurality of through holes are penetrated through the bottom of the mounting groove; The diaphragm is accommodated in the mounting groove, and the diaphragm comprises a bottom and an annular side portion extending from the outer periphery of the bottom toward the valve seat; The valve seat has a side wall arranged on the inner side of the annular side portion, and the annular side portion is sandwiched between the side wall of the valve seat and the inner side wall of the mounting groove.

11. A water treatment device, characterized in that: Comprising a diaphragm pump as claimed in any one of claims 1 to 10.

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