Diaphragm pump and water treatment equipment
By designing a limiting structure in the diaphragm pump, the problems of inaccurate installation and poor stability of the diaphragm are solved, precise assembly and stability of the diaphragm are achieved, and the operating reliability of the system is improved.
Patent Information
- Application Number
- CN202421632431.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-10
AI Technical Summary
In the micro-soaked water circuit system, the diaphragm of the electric diaphragm pump is not installed accurately, resulting in poor stability of the pump and affecting the normal operation of the system.
A diaphragm pump is designed, including a mounting bracket, a valve seat and a diaphragm. A pressurized chamber is formed between the diaphragm and the mounting bracket and the valve seat. The radial displacement of the diaphragm is restricted through a limited position structure to ensure that the diaphragm does not undergo relative radial displacement when it is deformed.
The precise assembly and stability of the diaphragm are achieved, ensuring that the diaphragm pump has good stability in work, and improving the operating reliability of the system.
Smart Images
Figure CN222797661U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water treatment, in particular to a diaphragm pump and water treatment equipment. Background Art
[0002] Since microbubble washing with domestic water is very effective in removing pesticide residues, bacteria and viruses on fruits and vegetables, changing the domestic water of the water purifier to microbubble water has become a mainstream trend. The microbubble pump sucks air and tap water into the microbubble water system at the same time, pressurizes the air to dissolve in the water, and then decompresses the air to release the air, and the air is released again to produce a large number of microbubbles. The microbubble pump plays three major functions in the microbubble system: pumping water, sucking air, and pressurizing. It is crucial in the entire microbubble water system. Compared with the system using two pumps, water pump / air pump, it reduces the complexity of the system and saves costs.
[0003] When installing the diaphragm of the electric diaphragm pump in the microbubble water system, the diaphragm and the mounting bracket need to be assembled accurately, and the diaphragm pump relies on squeezing the diaphragm to achieve pressurization, so the relatively stable state between the diaphragm and the mounting bracket is particularly important. Utility Model Content
[0004] The main purpose of the utility model is to provide a diaphragm pump and water treatment equipment, aiming to provide a diaphragm pump that is easy to assemble accurately and has good stability during operation.
[0005] To achieve the above purpose, the diaphragm pump proposed by the utility model includes:
[0006] A mounting bracket having a plurality of through holes;
[0007] A valve seat is arranged on one side of the mounting bracket, and a plurality of accommodating grooves are recessed on a side of the valve seat facing the mounting bracket, and,
[0008] A diaphragm is mounted on the mounting bracket and is located between the mounting bracket and the valve seat. The diaphragm and the plurality of receiving grooves are enclosed together to form a plurality of boosting chambers. The diaphragm is used to be driven by the plurality of driving parts to generate deformation so as to adjust the size of the plurality of boosting chambers.
[0009] Wherein, a limiting structure is arranged between the mounting bracket and the diaphragm, and the limiting structure is used to limit the radial displacement of the diaphragm relative to the mounting bracket when the diaphragm is deformed.
[0010] In one embodiment, the limiting structure includes a limiting protrusion provided on one of the mounting bracket and the diaphragm, and a limiting groove provided on the other one.
[0011] In one embodiment, the limiting protrusion is provided on the diaphragm and extends along the circumference of the diaphragm. Correspondingly, the limiting groove is provided on the mounting bracket and extends along the circumference of the mounting bracket.
[0012] In one embodiment, the limiting protrusions are correspondingly arranged on the peripheries of the plurality of accommodating grooves, and correspondingly, the limiting grooves are arranged on the peripheries of the plurality of via holes.
[0013] In one embodiment, the diaphragm includes a bottom and a first annular side portion extending from an outer peripheral edge of the bottom toward the mounting bracket, and the first annular side portion forms the limiting protrusion.
[0014] In one embodiment, a convex rib is further provided on the mounting bracket, and the convex rib extends along the circumference of the mounting bracket and is located on one side of the peripheral edge of the notch of the limiting groove close to the middle of the mounting bracket.
[0015] In one embodiment, a mounting groove is provided on a side of the mounting bracket facing the diaphragm, and the bottom of the mounting groove is penetrated by the plurality of through holes;
[0016] The bottom of the mounting groove is concavely provided with the limiting groove, and the diaphragm comprises a bottom and a second annular side portion extending from the outer peripheral edge of the bottom toward away from the mounting bracket;
[0017] The valve seat has a side wall arranged on the inner side of the second annular side portion, and the second annular side portion is sandwiched between the side wall of the valve seat and the inner side wall of the mounting groove.
[0018] In one embodiment, the diaphragm pump further comprises a driving mechanism, the driving mechanism comprises a plurality of driving parts, each of the driving parts is arranged corresponding to one of the boosting chambers, and is movably arranged in a direction close to and away from the valve seat, and each of the driving parts is used to drive the diaphragm to deform during its movable stroke;
[0019] Each of the driving parts is provided with a positioning part, and the diaphragm is provided with a matching part matching with the positioning part.
[0020] In one embodiment, one of the positioning portion and the matching portion is configured as a positioning protrusion, and the other is configured as a positioning groove.
[0021] The utility model also provides a water treatment device, the water treatment device comprises a diaphragm pump, the diaphragm pump comprises:
[0022] A mounting bracket having a plurality of through holes;
[0023] A valve seat is arranged on one side of the mounting bracket, and a plurality of accommodating grooves are recessed on a side of the valve seat facing the mounting bracket, and,
[0024] A diaphragm is mounted on the mounting bracket and is located between the mounting bracket and the valve seat. The diaphragm and the plurality of receiving grooves are enclosed together to form a plurality of boosting chambers. The diaphragm is used to be driven by the plurality of driving parts to generate deformation so as to adjust the size of the plurality of boosting chambers.
[0025] Wherein, a limiting structure is arranged between the mounting bracket and the diaphragm, and the limiting structure is used to limit the radial displacement of the diaphragm relative to the mounting bracket when the diaphragm is deformed.
[0026] In the technical solution of the utility model, when the diaphragm is assembled to the mounting bracket, the limiting structure can limit the diaphragm to the position where it needs to be installed, and through the limiting structure arranged between the mounting bracket and the diaphragm, while ensuring that the diaphragm and the mounting bracket do not shift in the radial direction, the diaphragm can also deform in the direction approaching and away from the valve seat, so that it can work normally, so as to provide a diaphragm pump that is easy to assemble the diaphragm accurately and has good stability during operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0028] Figure 1 A schematic structural diagram of an embodiment of a diaphragm pump provided by the utility model;
[0029] Figure 2 for Figure 1 Schematic cross-section of a diaphragm pump;
[0030] Figure 3 for Figure 1 Schematic diagram of the structure after the mounting bracket, diaphragm and valve seat are assembled;
[0031] Figure 4 for Figure 3 Schematic cross-sectional view of ;
[0032] Figure 5 for Figure 4 The enlarged schematic diagram at A in the middle;
[0033] Figure 6 for Figure 3 Schematic diagram of the structure of the diaphragm;
[0034] Figure 7 for Figure 1 Schematic diagram of the partial structure of the diaphragm pump.
[0035] Description of Figure Numbers:
[0036] 100. Diaphragm pump; 1. Mounting bracket; 1a. Through hole; 1b. Limiting groove; 11. Raised rib; 2. Valve seat; 2a. Accommodating groove; 3. Diaphragm; 31. Limiting protrusion; 32. Bottom; 331. First annular side; 332. Second annular side; 34. Positioning protrusion; 4. Driving mechanism; 41. Driving part; 41a. Positioning groove.
[0037] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0039] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0041] Since microbubble washing with domestic water is very effective in removing pesticide residues, bacteria and viruses on fruits and vegetables, changing the domestic water of the water purifier to microbubble water has become a mainstream trend. The microbubble pump sucks air and tap water into the microbubble water system at the same time, pressurizes the air to dissolve in the water, and then decompresses the air to release the air, and the air is released again, producing a large number of microbubbles. The microbubble pump plays three major functions in the microbubble system: pumping water, sucking air, and pressurizing. It is crucial in the entire microbubble water system. Compared with the system using two pumps, water pump / air pump, it reduces the complexity of the system and saves costs. When installing the diaphragm of the electric diaphragm pump in the microbubble water system, it is necessary to accurately assemble the diaphragm and the mounting bracket, and the diaphragm pump relies on squeezing the diaphragm to achieve pressurization, so the relatively stable state between the diaphragm and the mounting bracket is particularly important.
[0042] The utility model provides a diaphragm pump, which is convenient for accurate assembly of a diaphragm and has good stability during operation.
[0043] See also Figure 1 , Figures 5 to 7 In one embodiment of the utility model, the diaphragm pump 100 includes a mounting bracket 1, a valve seat 2 and a diaphragm 3, wherein the mounting bracket 1 is provided with a plurality of through holes 1a; the valve seat 2 is provided on one side of the mounting bracket 1, and a plurality of receiving grooves 2a are recessed on the side of the valve seat 2 facing the mounting bracket 1; the diaphragm 3 is installed on the mounting bracket 1 and is located between the mounting bracket 1 and the valve seat 2; the diaphragm 3 and the plurality of receiving grooves 2a are jointly enclosed to form a plurality of boosting chambers; the diaphragm 3 is used to be driven by a plurality of driving parts 41 to produce deformation so as to adjust the size of the plurality of boosting chambers; wherein a limiting structure is provided between the mounting bracket 1 and the diaphragm 3, and the limiting structure is used to limit the radial displacement of the diaphragm 3 relative to the mounting bracket 1 when the diaphragm 3 is deformed.
[0044] It can be understood that the mounting bracket 1 is provided with the plurality of through holes 1a, and the plurality of through holes 1a are used for allowing the plurality of driving parts 41 to pass therethrough, and the plurality of driving parts 41 are connected to the diaphragm 3, thereby driving the diaphragm 3 to move and deform, thereby squeezing the corresponding boost chamber to deform.
[0045] It can also be understood that "the diaphragm 3 is installed on the mounting bracket 1 and is located between the mounting bracket 1 and the valve seat 2" can be understood as that the diaphragm 3 can be sandwiched between the mounting bracket 1 and the valve seat 2, and the diaphragm 3 can be fixed by the clamping force between the mounting bracket 1 and the valve seat 2. When the diaphragm 3 is damaged and needs to be replaced and repaired, the valve seat 2 can be disassembled and the diaphragm 3 can be directly replaced and repaired. The disassembly and assembly are simple and the maintenance is convenient. And because the diaphragm 3 is subject to the clamping force between the mounting bracket 1 and the valve seat 2, the clamping force that presses the diaphragm 3 can be adjusted by adjusting the locking degree between the mounting bracket 1 and the valve seat 2, and the adjustment is convenient.
[0046] It should be noted that the "limiting structure" can be in the form of a convex and concave groove set between the mounting bracket 1 and the diaphragm 3, and the two match to limit the displacement of the diaphragm 3; it can also be a snap-on limit, or a friction limit in the form of limiting the sliding of the diaphragm 3 by increasing the friction coefficient of the contact surface. The limiting structure is not limited to the above examples. Technical personnel in the relevant field may make other changes under the inspiration of the technical essence of the embodiments of this specification, but as long as the functions and effects achieved are the same or similar to the embodiments of this specification, they should be covered within the protection scope of the embodiments of this specification.
[0047] It is also necessary to explain that, during the assembly process, the diaphragm 3 needs to be clamped between the mounting bracket 1 and the valve seat 2, so that the valve seat 2 and the diaphragm 3 together enclose a plurality of independently working booster chambers, and when the diaphragm 3 is installed on the mounting bracket 1, the diaphragm 3 needs to be used to connect with the driving part 41 penetrated by the plurality of through holes 1a, and a plurality of connecting structures for connecting with the driving part 41 are provided on the diaphragm 3, and the plurality of connecting structures need to be respectively arranged one by one corresponding to the plurality of through holes 1a on the mounting bracket 1. Therefore, when the diaphragm 3 is first installed on the mounting bracket 1, there are requirements for the placement position of the diaphragm 3.
[0048] It should also be noted that when multiple driving parts 41 respectively drive the diaphragm 3 to deform in the area corresponding to the accommodating groove 2a, the diaphragm 3 is squeezed by external force and is easily displaced in the radial direction relative to the mounting bracket 1 as a whole. In the case that the diaphragm 3 slips, on the one hand, the stability of the diaphragm 3 is affected. When the diaphragm 3 is not driven by external force, it is not easy to restore the deformation, so that its pressurization function is weakened or even fails.
[0049] In the technical solution of the utility model, when the diaphragm 3 is assembled to the mounting bracket 1, the limiting structure can limit the diaphragm 3 to the position where it needs to be installed, and through the limiting structure arranged between the mounting bracket 1 and the diaphragm 3, while ensuring that the diaphragm 3 and the mounting bracket 1 do not shift in the radial direction, the diaphragm 3 can also be deformed in the direction approaching and away from the valve seat 2, so that it can work normally, so as to provide a diaphragm pump 100 that is easy to assemble the diaphragm 3 accurately and has good stability during operation.
[0050] Specifically, in this embodiment, the limiting structure includes a limiting protrusion 31 provided on one of the mounting bracket 1 and the diaphragm 3, and a limiting groove 1b provided on the other. In this way, the matching mode of the protrusion and the groove makes the installation of the diaphragm 3 simple and intuitive, and only needs to align the limiting protrusion 31 with the limiting groove 1b, which reduces the assembly time and difficulty, and also reduces the possibility of assembly errors.
[0051] It should be noted that the design of the limiting protrusion 31 and the limiting groove 1b can be designed according to the specific shape characteristics of the mounting bracket 1 and the diaphragm 3, which can ensure the position accuracy of the diaphragm 3 relative to the mounting bracket 1, and help to accurately control the deformation and movement of the diaphragm 3. In addition, compared with the limiting structure relying on friction force, the design of the limiting protrusion 31 and the limiting groove 1b can reduce the direct contact between the diaphragm 3 and the mounting bracket 1, thereby reducing wear and extending the service life, and the manufacturing cost is low and the structure is simple.
[0052] In this embodiment, the limiting protrusion 31 is provided on the diaphragm 3 and extends along the circumference of the diaphragm 3 , and correspondingly, the limiting groove 1 b is provided on the mounting bracket 1 and extends along the circumference of the mounting bracket 1 .
[0053] The limiting protrusion 31 and the limiting groove 1b extend in the circumferential direction to ensure that the force and pressure are evenly distributed over the entire circumference, avoiding excessive stress concentration in the local area of the diaphragm 3, and helping to extend the service life of the diaphragm 3. It can also ensure that the diaphragm 3 is accurately aligned with the mounting bracket 1. The circumferential limiting structure can limit its excessive expansion or contraction under pressure, maintain the shape and function of the diaphragm 3, and prevent failure due to excessive deformation. The diaphragm 3 will expand and contract when the temperature changes. The circumferential limiting structure can adapt to such changes, allowing a certain degree of expansion and contraction, while keeping the position of the diaphragm 3 stable, and can reduce the unexpected contact and wear of the diaphragm 3 with other components, thereby improving the overall durability.
[0054] Furthermore, in this embodiment, the limiting protrusion 31 is correspondingly arranged at the periphery of the plurality of accommodating grooves 2a, and the limiting groove 1b is correspondingly arranged at the periphery of the plurality of via holes 1a. With such arrangement, the range formed by the limiting protrusion 31 and the limiting groove 1b is larger, so that the limiting structure between the diaphragm 3 and the mounting bracket 1 has a larger contact area, thereby ensuring a more stable connection.
[0055] It is understandable that, during assembly, the assembly accuracy between the limiting groove 1b and the limiting protrusion 31 can be improved by setting the local shapes of the limiting groove 1b and the limiting protrusion 31.
[0056] Furthermore, when the plurality of driving parts 41 drive the diaphragm 3 to deform, partial areas of the outer ring of the diaphragm 3 can be well positioned, thereby improving the stability and rigidity of the overall structure.
[0057] Furthermore, in this embodiment, the diaphragm 3 includes a bottom 32 and a first annular side portion 331 extending from the outer periphery of the bottom 32 toward the mounting bracket 1, and the first annular side portion 331 forms the limiting protrusion 31. In this way, the entire edge area of the diaphragm 3 and the bracket can be utilized, so that the limiting structure can provide the maximum contact area and can better resist external forces such as pressure, tension or torsion. By arranging the limiting structure at the periphery, stress and load can be more evenly distributed on the entire diaphragm 3, avoiding local stress concentration, reducing fatigue and potential damage.
[0058] For further information, see Figure 4 and Figure 5 In this embodiment, a convex rib 11 is further provided on the mounting bracket 1. The convex rib 11 extends along the circumference of the mounting bracket 1 and is located on one side of the groove periphery of the limiting groove 1b close to the middle of the mounting bracket 1.
[0059] It can be understood that the rib 11 is provided on the mounting bracket 1, and the diaphragm 3 is clamped between the mounting bracket 1 and the valve seat 2. When the diaphragm pump 100 is working, the friction between the rib 11 and the elastic diaphragm 3 will increase, and a limiting structure can also be formed between the mounting bracket 1 and the diaphragm 3 to reduce the possibility of relative slippage.
[0060] Furthermore, since the diaphragm 3 is in direct contact with the water in the boost chamber, and a motor for driving the multiple driving parts 41 to move is provided on the side of the mounting bracket 1 facing away from the diaphragm 3, the sealing performance requirements between the diaphragm 3 and the mounting bracket 1 are extremely high. By providing the rib 11, while preventing relative slippage between the mounting bracket 1 and the diaphragm 3, stronger sealing performance can also be provided.
[0061] Furthermore, the rib 11 is disposed at the periphery of the groove opening of the limiting groove 1b, further deepening the groove depth of the limiting groove 1b, thereby better avoiding the possibility that the limiting protrusion 31 is separated from the limiting groove 1b.
[0062] For further information, see Figure 4 and Figure 5 In this embodiment, a mounting groove is provided on one side of the mounting bracket 1 facing the diaphragm 3, and the bottom of the mounting groove is penetrated by the multiple through holes 1a; the bottom 32 of the mounting groove is recessed with the limiting groove 1b, and the diaphragm 3 includes a bottom 32 and a second annular side portion 332 extending from the outer peripheral edge of the bottom 32 away from the mounting bracket 1; the valve seat 2 has a side wall provided on the inner side of the second annular side portion 332, and the second annular side portion 332 is sandwiched between the side wall of the valve seat 2 and the inner wall of the mounting groove.
[0063] The diaphragm 3 is accommodated in the mounting groove, and the diaphragm 3 is supported on the bottom of the mounting groove. The outer wall of the second annular side portion 332 of the diaphragm 3 can be in contact with the inner wall of the mounting groove, and the inner wall of the inner side of the second annular side portion 332 of the diaphragm 3 is in contact with the side wall of the valve seat 2, so that the second annular side portion 332 of the diaphragm 3 can be clamped between the side wall of the valve seat 2 and the inner wall of the mounting groove, and the side wall of the mounting groove and the side wall of the valve seat 2 also have a certain limiting effect on the second annular side portion 332.
[0064] For further information, see Figure 2 and Figure 7 In the present embodiment, the diaphragm pump 100 further includes a driving mechanism 4, which includes a plurality of driving parts 41, each of which is arranged corresponding to one of the boosting chambers, and is movably arranged in a direction approaching and away from the valve seat 2, and each of the driving parts 41 is used for driving the diaphragm 3 to deform during its movable stroke; each of the driving parts 41 is provided with a positioning part, and the diaphragm 3 is provided with a mating part that cooperates with the positioning part.
[0065] It should be noted that the positioning portion and the matching portion may be a positioning hole and a positioning pin, or may be two magnetic portions that can be magnetically positioned, or may be positioning structures such as snaps. Of course, the positioning portion and the matching portion are not limited to the above examples, and technical personnel in the relevant field may make other changes based on the technical essence of the embodiments of this specification. However, as long as the functions and effects achieved are the same or similar to those of the embodiments of this specification, they should be covered within the protection scope of the embodiments of this specification.
[0066] In a specific embodiment, one of the positioning portion and the matching portion is configured as a positioning protrusion 34, and the other is configured as a positioning groove 41a. The structural positioning of the positioning protrusion 34 and the positioning groove 41a is relatively simple, easy to manufacture and assemble, and has low costs in processing and production. The matching of the positioning protrusion 34 and the positioning groove 41a can ensure that the relative positions between the parts are accurate and correct, and can prevent the parts from being misplaced or rotated during the assembly process, thereby ensuring the correctness of the assembly, and in terms of assembly and disassembly, allows the parts to be easily assembled and disassembled, which makes maintenance and replacement simple.
[0067] The present invention also proposes a water treatment device, which includes a filtering device and a diaphragm pump 100. The specific structure of the diaphragm pump 100 refers to the above-mentioned embodiment. Since the water treatment device adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.
[0068] The diaphragm pump 1000 can be installed in water treatment equipment and devices including water treatment equipment, including but not limited to water purifiers, pure water machines, filters, coffee machines, etc. The water treatment equipment can be a microbubble generating system, and the diaphragm pump 100 can be used in the microbubble generating system, and the microbubble generating 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, the gas mixing tank is connected between the diaphragm pump 100 and the bubbler, and the gas mixing tank is connected to the diaphragm pump 100 and the bubbler. The gas mixing tank can be connected to the diaphragm pump 100 through a connecting pipe, and can also be connected to the bubbler through a connecting pipe. The diaphragm pump 100 is suitable for being connected to the liquid inlet of the water purification equipment, the diaphragm pump 100 can be connected to the liquid inlet of the water purification equipment through a connecting pipe, the bubbler is suitable for being connected to the liquid outlet of the water purification equipment, and the bubbler can be connected to the liquid outlet of the water purification equipment through a connecting pipe. The tap water flows into the bubble generating system from the liquid inlet of the water purification device, passes through the diaphragm pump 100, the gas mixing tank, and the bubbler in sequence, and finally the water flows out of the water purification device from the liquid outlet of the water purification device.
[0069] The air inlet valve is connected to the diaphragm pump 100, and the air inlet valve is suitable for connecting the diaphragm pump 100 and the air inlet of the water purification device. The air inlet valve can be connected to the controller of the water purification device in communication. 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 connects the diaphragm pump 100 and the air inlet of the water purification device. When tap water flows into the diaphragm pump 100, the 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 diaphragm pump 100 and the air inlet of the water purification device. At this time, the diaphragm pump 100 and the air inlet of the water purification device are not connected, and the gas cannot flow into the diaphragm pump 100 through the air inlet valve. When tap water and gas flow into the diaphragm pump 100 at the same time, they can merge into one flow path and flow to the gas mixing tank.
[0070] It should be noted that, in the present embodiment, the diaphragm pump 100 is composed of a plastic-sealed variable frequency motor and a microbubble pump head. The microbubble pump head includes the above-mentioned mounting bracket 1, the diaphragm 3 and the valve seat 2. The high-voltage charged body in the motor is integrally injection molded with BMC to eliminate leakage safety problems, and achieve high power and high flux with small current. The motor adopts a variable frequency motor with no carbon brush wear to achieve long life, and the short and fat motor structure design has smaller shaft disturbance when the pump head runs eccentrically, and the whole pump obtains a better silent experience.
[0071] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A diaphragm pump, characterized in that: include: A mounting bracket having a plurality of through holes; A valve seat is arranged on one side of the mounting bracket, and a plurality of accommodating grooves are recessed on a side of the valve seat facing the mounting bracket, and, A diaphragm is mounted on the mounting bracket and is located between the mounting bracket and the valve seat. The diaphragm and the plurality of receiving grooves are enclosed together to form a plurality of boosting chambers. The diaphragm is used to be driven by the plurality of driving parts to generate deformation so as to adjust the size of the plurality of boosting chambers. Wherein, a limiting structure is arranged between the mounting bracket and the diaphragm, and the limiting structure is used to limit the radial displacement of the diaphragm relative to the mounting bracket when the diaphragm is deformed.
2. The diaphragm pump according to claim 1, characterized in that The limiting structure includes a limiting protrusion arranged on one of the mounting bracket and the diaphragm, and a limiting groove arranged on the other one.
3. The diaphragm pump according to claim 2, characterized in that The limiting protrusion is arranged on the diaphragm and extends along the circumference of the diaphragm. Correspondingly, the limiting groove is arranged on the mounting bracket and extends along the circumference of the mounting bracket.
4. The diaphragm pump according to claim 3, characterized in that: The limiting protrusions are correspondingly arranged on the peripheries of the plurality of accommodating grooves, and correspondingly, the limiting grooves are arranged on the peripheries of the plurality of via holes.
5. The diaphragm pump according to claim 4, characterized in that The diaphragm includes a bottom and a first annular side portion extending from an outer peripheral edge of the bottom toward the mounting bracket, and the first annular side portion forms the limiting protrusion.
6. The diaphragm pump according to claim 4, characterized in that The mounting bracket is also provided with a convex rib, which extends along the circumference of the mounting bracket and is located on one side of the peripheral edge of the notch of the limiting groove close to the middle of the mounting bracket.
7. The diaphragm pump according to claim 6, characterized in that The mounting bracket is provided with a mounting groove on one side facing the diaphragm, and the bottom of the mounting groove is penetrated by the plurality of through holes; The bottom of the mounting groove is recessed with the limiting groove, and the diaphragm comprises a bottom and a second annular side portion extending from the outer peripheral edge of the bottom away from the mounting bracket; The valve seat has a side wall arranged on the inner side of the second annular side portion, and the second annular side portion is sandwiched between the side wall of the valve seat and the inner side wall of the mounting groove.
8. The diaphragm pump according to claim 1, characterized in that The diaphragm pump further comprises a driving mechanism, wherein the driving mechanism comprises a plurality of driving parts, each of the driving parts being arranged corresponding to one of the boosting chambers and being movably arranged in a direction approaching and moving away from the valve seat, and each of the driving parts being used to drive the diaphragm to deform during its movable stroke; Each of the driving parts is provided with a positioning part, and the diaphragm is provided with a matching part that matches with the positioning part.
9. The diaphragm pump according to claim 8, characterized in that One of the positioning portion and the matching portion is configured as a positioning protrusion, and the other is configured as a positioning groove.
10. A water treatment device, characterized in that: Comprising the diaphragm pump according to any one of claims 1 to 9.