Water purification equipment

Abstract

The invention discloses water purification equipment, and relates to the technical field of water purification equipment, the water purification equipment comprises a diaphragm pump, and the diaphragm pump comprises a pump body; the fluid control plate is arranged at the end part of the pump body, and a water outlet through groove is formed in the fluid control plate; the water outlet valve is arranged in the water outlet through groove; wherein the water outlet valve is circular, the water outlet valve comprises a mounting part and a diaphragm, the diaphragm is arranged on the periphery of the mounting part, a plurality of separation grooves are uniformly formed in the diaphragm in the circumferential direction at intervals, and the diaphragm is divided into a plurality of diaphragm flaps by the separation grooves; according to the technical scheme provided by the invention, the plurality of separation grooves are formed in the diaphragm, so that the contact and friction opportunities among the diaphragm flaps are greatly reduced in the movement process, and the sticking condition of the diaphragm is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of water purification equipment, and particularly to a water purification equipment. Background Art

[0002] A heating type water purification equipment is provided with a hot water tank and a water pump. The hot water tank is used for storing hot water, and the water pump is used for pumping out the hot water in the hot water tank for users to use. At present, the commonly used water pump is generally a centrifugal pump, but it is difficult for the centrifugal pump to accurately control the flow rate. In order to accurately control the flow rate, a diaphragm pump is now introduced as the water pump, but the water outlet valve of the diaphragm pump is prone to adhesion in a high temperature environment, thus easily causing the diaphragm pump to malfunction. Summary of the Invention

[0003] The main object of the present invention is to propose a water purification equipment, aiming to reduce the possibility of self - adhesion of the water outlet valve during the operation of the diaphragm pump.

[0004] To achieve the above object, the water purification equipment proposed by the present invention includes a diaphragm pump, and the diaphragm pump includes

[0005] a pump body;

[0006] a fluid control board, which is arranged at the end of the pump body, and the fluid control board is provided with a water outlet through - groove;

[0007] a water outlet valve, which is arranged in the water outlet through - groove;

[0008] Wherein, the water outlet valve is circular, and the water outlet valve includes a mounting part and a diaphragm. The diaphragm is arranged on the outer periphery of the mounting part, and a plurality of partition grooves are circumferentially and evenly spaced on the diaphragm. The plurality of partition grooves divide the diaphragm into a plurality of diaphragm flaps.

[0009] In an embodiment, a plurality of partition ribs are arranged in the water outlet through - groove, and the partition ribs correspond to the partition grooves one by one.

[0010] In an embodiment, the number of the partition grooves is five.

[0011] In an embodiment, a receiving part is arranged in the water outlet through - groove. The receiving part is used for receiving the mounting part. A plurality of connecting rods are arranged on the outer periphery of the receiving part, and the ends of the connecting rods are arranged on the inner wall of the water outlet through - groove. The connecting rods are used to provide support for the receiving part.

[0012] In an embodiment, a positioning part is formed by the bottom surface of the mounting part protruding, and a positioning groove for the positioning part to be embedded is formed by the receiving part being recessed.

[0013] In an embodiment, the cross - section of the positioning part in its length direction is polygonal.

[0014] In one embodiment, a number of reinforcing rods are further provided on the outer periphery of the receiving portion. The ends of the reinforcing rods are disposed on the inner wall of the water outlet through groove, and the reinforcing rods are disposed between two adjacent connecting rods.

[0015] In one embodiment, the connecting rods and the partition ribs correspond to each other one by one.

[0016] In one embodiment, a water inlet groove is recessed on the fluid control plate. A number of water inlet holes are formed in the bottom of the water inlet groove, and the water inlet holes are evenly spaced around the water outlet through groove.

[0017] In one embodiment, the water purification device further includes a pump cover. The pump cover is installed on the top of the fluid control plate. A limiting portion is formed by the convexity of the top surface of the installation portion. A limiting post is provided on the pump cover. When the pump cover is installed on the fluid control plate, the limiting post abuts against the limiting portion.

[0018] In one embodiment, an inlet chamber and an outlet chamber are formed by the enclosure of the pump cover and the fluid control plate. The water inlet holes communicate with the inlet chamber, and the water outlet through groove communicates with the outlet chamber. A sealing member is provided between the fluid control plate and the pump cover. The sealing member includes an outer ring and an inner ring. The outer ring is used to seal the connection between the pump cover and the fluid control plate, and the inner ring is used to isolate the inlet chamber and the outlet chamber.

[0019] In one embodiment, a number of connecting ribs are provided between the inner ring and the outer ring, and the connecting ribs are used to connect the inner ring and the outer ring.

[0020] In one embodiment, a sealing groove is recessed on the upper end surface of the fluid control plate, and the sealing groove is used to accommodate the outer ring.

[0021] In one embodiment, the diaphragm pump further includes a water inlet valve. The water inlet hole is circular, and a supporting portion for installing the water inlet valve is provided in the water inlet hole. The supporting portion divides the water inlet hole into a number of waist-shaped holes and / or a number of fan-shaped holes.

[0022] In one embodiment, the ratio of the major axis to the minor axis of the waist-shaped hole is (2.5 - 1.5):1, and the central angle of the fan-shaped hole is 30° - 120°.

[0023] In one embodiment, the supporting portion includes a supporting ring and a number of supporting ribs. The supporting ribs are circumferentially arranged on the outer periphery of the supporting ring, and the ends of the supporting ribs are disposed on the inner wall of the water inlet hole.

[0024] The technical solution of the present invention is to provide several separation grooves on the diaphragm, so that during the movement of the valve flaps, the contact and friction opportunities between them are significantly reduced, thus effectively avoiding the adhesion of the diaphragm itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0026] Figure 1 is a schematic diagram of the overall structure of the diaphragm pump in the present invention;

[0027] Figure 2 is an exploded view of the diaphragm pump for showing the fluid control board;

[0028] Figure 3 is a cross-sectional view of the diaphragm pump;

[0029] Figure 4 is a schematic diagram of the overall structure of the fluid control board;

[0030] Figure 5 is Figure 4 an enlarged view of part A in

[0031] Figure 6 is a schematic diagram of the overall structure of the fluid control board from the bottom view;

[0032] Figure 7 is a schematic diagram of the overall structure of the water outlet valve;

[0033] Figure 8 is a schematic diagram of the overall structure of the water outlet valve from another perspective.

[0034] Explanation of the reference numerals in the drawings:

[0035] 1. Pump body; 2. Fluid control board; 21. Water outlet groove; 22. Receiver; 221. Connecting rod; 222. Reinforcement rod; 223. Positioning groove; 224. Separation rib; 23. Water trough; 231. Sink; 24. Water inlet groove; 241. Water inlet hole; 242. Water inlet valve; 2421. Limiting round head; 243. Supporting part; 2431. Supporting ring; 2432. Supporting rib; 244. Waist-shaped hole / fan-shaped hole; 25. Reinforcement part; 26. Sealing groove; 27. Positioning baffle; 3. Water outlet valve; 31. Mounting part; 311. Limiting part; 312. Positioning part; 32. Diaphragm; 321. Separation groove; 4. Pump cover; 41. Limiting column; 42. Water inlet cavity; 43. Water outlet cavity; 5. Seal; 51. Outer ring; 52. Inner ring; 53. Connecting rib.

[0036] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), 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 indication will also change accordingly.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, 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 present invention.

[0040] With the improvement of living quality, people's requirements for water quality are also constantly increasing; currently, many families have introduced water purification equipment to further filter tap water in order to improve the water quality of their household drinking water.

[0041] Water purification equipment generally includes a housing, a pre-filter, a reverse osmosis filter, a post-filter, several water pumps, a water storage tank, a control module, and various connecting pipelines and valves. Among them, the pre-filter is usually a combination of a PP cotton filter and a granular activated carbon filter, which is installed at the water inlet end of the equipment. The PP cotton filter can filter large particulate impurities in water, such as sediment, rust, etc.; the granular activated carbon filter can adsorb residual chlorine, abnormal color, and odor in water. The reverse osmosis filter is the core component. Through a high-precision reverse osmosis membrane, it can effectively remove bacteria, viruses, heavy metal ions, organic pollutants, and most dissolved salts and other tiny impurities in water. The post-filter is generally a carbon rod filter, which further improves the water quality taste and adsorbs the possible remaining odor of the reverse osmosis filter and improves the taste of water; the water storage tank is used to store the filtered clean water. When the water demand is low, the water produced by the equipment will be stored in the water storage tank; when using water, the water in the water storage tank will flow to the faucet for users to use.

[0042] The water in the water storage tank has reached the direct drinking standard. In order to meet the diverse water use needs, two additional water storage tanks can be set in the water purification equipment, and a heating module and a cooling module are respectively set in the two additional water storage tanks, so that the two additional water storage tanks can store cold water and hot water respectively; correspondingly, the number of water storage tanks and the setting of the heating module and the cooling module can be determined according to different water circuit settings or different user needs. The above is only for explanation and is not a limitation on the number of water storage tanks and the setting of the heating module and the cooling module mentioned in the present invention.

[0043] Furthermore, with the diversification of user needs, the miniaturization of the equipment volume and the accurate quantitative water output have also become the improvement directions of water purification equipment; the water pumps of existing water purification equipment generally use centrifugal water pumps, and centrifugal water pumps have the advantages of large water flow and stable water flow; however, due to its working principle, the centrifugal water pump must be installed at the bottom of the water storage tank, and it is difficult to accurately control the water output of the centrifugal water pump. Therefore, the centrifugal water pump is not conducive to the miniaturization of the water purification equipment volume and the accurate quantitative water output.

[0044] For this reason, the present invention introduces a diaphragm pump into the water purification device. Since a negative pressure can be generated during the operation of the diaphragm pump, the installation position of the diaphragm pump can be flexibly set inside the water purification device, thus facilitating the miniaturized design of the volume of the water purification device. In addition, the diaphragm pump can accurately control the water output due to its special working principle. The working process of the diaphragm pump mainly includes an inhalation process and an ejection process. During the inhalation process, after the driving mechanism of the diaphragm pump is started, it will drive the diaphragm to reciprocate. When the diaphragm moves outward, the volume of the pump chamber gradually increases, the internal pressure decreases, forming a negative pressure. Under the action of the negative pressure, the fluid in the inlet pipe is sucked into the pump chamber. At this time, the inlet valve 242 opens to allow the fluid to enter, while the outlet valve 3 remains closed due to the pressure difference to prevent the fluid from flowing back. During the ejection process, the diaphragm starts to move inward under the action of the driving mechanism, the volume of the pump chamber gradually decreases, and the fluid in the chamber is squeezed, resulting in an increase in pressure. When the pressure in the pump chamber rises above the pressure in the outlet pipe, the outlet valve 3 opens, and the fluid is squeezed out of the pump chamber and discharged through the outlet pipe. At the same time, the inlet valve 242 closes under the action of the pressure to ensure that the fluid can only be discharged from the outlet, completing a complete working cycle. In summary, the present invention introduces a diaphragm pump to replace the centrifugal water pump.

[0045] The diaphragm pump further includes a fluid control board 2. The inlet valve 242 and the outlet valve 3 are both arranged on the fluid control board 2. As can be seen from the above, when the diaphragm pump operates, the discharge of water is controlled through the cooperation of the outlet valve 3 and the fluid control board 2. The outlet valve 3 is generally made of rubber material. When the water stored in the water storage tank is hot water, after the outlet valve 3 is soaked in hot water and left for a period of time, it may adhere to the fluid control board 2 or self-adhere. After the outlet valve 3 adheres to the fluid control board 2, the outlet valve 3 will block the water flow, resulting in the inability to discharge the water inside the diaphragm pump. If the outlet valve 3 self-adheres, it will cause the outlet valve 3 to fail, and thus no negative pressure can be generated inside the diaphragm pump during its operation. Generally speaking, both of the above situations will cause the diaphragm pump to malfunction.

[0046] Without changing the material of the water outlet valve 3, the present invention proposes a water purification device to solve the possibility of the water outlet valve 3 sticking in a hot water environment. Specifically, the diaphragm pump in the present invention includes a pump body 1, a fluid control plate 2 and a water outlet valve 3. The fluid control plate 2 is hermetically arranged at the end of the pump body 1, and the fluid control plate 2 is provided with a water outlet through groove 21. The water outlet valve 3 is arranged in the water outlet through groove 21. Among them, a receiving portion 22 is arranged in the water outlet through groove 21, and the receiving portion 22 is used to receive the water outlet valve 3. In the present invention, the water outlet valve 3 is integrally circular. The circular water outlet valve 3 is more stable during installation and operation. Its structure is beneficial to evenly disperse the water flow pressure, reduce local stress concentration, make the diaphragm pump more stable during operation, and improve the stability and durability of the overall device. The water outlet valve 3 includes an installation portion 31 and a diaphragm 32. The diaphragm 32 is arranged on the outer periphery of the installation portion 31. The diaphragm 32 is used to cover the water passing groove 23, and the installation portion 31 is placed on the receiving portion 22. During the operation of the diaphragm pump, the diaphragm 32 will deform with the change of pressure, so as to open or close the water passing groove 23, and the installation portion 31 is fixed on the receiving portion 22 to limit the deformation of the diaphragm 32, ensuring that the diaphragm 32 can still recover after the deformation is completed, that is, ensuring that the diaphragm 32 can accurately cover the water passing groove 23 under the pressure change to ensure the stable operation of the overall diaphragm pump. In the present invention, a plurality of separation grooves 321 are evenly spaced in the circumferential direction of the diaphragm 32, and the separation grooves 321 divide the diaphragm 32 into a plurality of diaphragm petals. Further, in the present invention, a plurality of connecting rods 221 are arranged on the outer periphery of the receiving portion 22. The two ends of the connecting rods 221 are respectively arranged on the inner wall of the water outlet through groove 21 and the outer periphery of the receiving portion 22, that is, the connecting rods 221 are used to provide support for the receiving portion 22. In other words, the connecting rods 221 are the medium between the receiving portion 22 and the fluid control plate 2. It should be noted that in the diaphragm pump, the fluid control plate 2, the receiving portion 22 and the connecting rods 221 are generally made of plastic materials. Therefore, the fluid control plate 2, the receiving portion 22 and the connecting rods 221 can be made by an integral molding process to ensure the connection strength of the connecting rods 221, that is, to ensure the connection strength between the fluid control plate 2 and the receiving portion 22, thereby avoiding the displacement or deformation of the receiving portion 22 under the impact of water flow or other external forces, and further ensuring the stability of the position of the water outlet valve 3 and improving the reliability of the operation of the diaphragm pump.A convex dividing rib 224 is formed on the surface of the connecting rod 221 facing the diaphragm 32, and the dividing rib 224 corresponds to the dividing groove 321 one by one; the setting of the dividing rib 224 and the dividing groove 321, on the one hand, plays a positioning role, preventing the water outlet diaphragm 32 from rotating or shifting during operation, limiting the mutual approach between the diaphragm petals, and avoiding accidental contact and adhesion of the diaphragm petals due to displacement during operation, that is, reducing the possibility of self-adhesion of the diaphragm 32, ensuring its stable operation; on the other hand, the opening of the dividing groove 321 reduces the influence of the connecting rod 221 on the diaphragm 32, and each diaphragm petal is independent of each other, further reducing the possibility of self-adhesion of the diaphragm 32; further, this structure can make the water flow through the diaphragm petals more evenly, optimize the water flow distribution, and improve the drainage efficiency and flow stability of the diaphragm pump.

[0047] The outer periphery of the receiving portion 22 and the inner wall of the water outlet groove 21 are surrounded to form a plurality of water grooves 23, and a circle of sinks 231 are arranged on the water grooves 23 facing the notch of the water outlet valve 3; in the present invention, the cooperation between the water outlet valve 3 and the fluid control board 2 is used to control the water outlet of the diaphragm pump, that is, the water outlet valve 3 will cover the water grooves 23 when negative pressure is formed in the diaphragm pump, and the arrangement of the sinks 231 reduces the contact area between the water outlet valve 3 and the fluid control board 2, so that the adhesion between the water outlet valve 3 and the fluid control board 2 is reduced, thereby reducing the possibility of adhesion between the water outlet valve 3 and the fluid control board 2 after being soaked in hot water and placed for a period of time; at the same time, when water is discharged, the water will first flow through the gap between the sink 231 and the water outlet valve 3, that is, a certain amount of water can be retained at the position of the sink 231, and the retained water can play a certain lubricating role, which can further reduce the possibility of no water discharge caused by adhesion between the water outlet valve 3 and the fluid control board 2 after being placed for a long time.

[0048] In terms of the sealing effect of the diaphragm 32 on the water groove 23, the water groove 23 is actually formed by the outer periphery of the receiving portion 22, the connecting rod 221 and the inner wall of the water outlet groove 21, so there must be a connecting rod 221 between two adjacent water grooves 23; when the diaphragm 32 covers the water groove 23 and seals the water groove 23, the connecting rod 221 will limit the deformation of the diaphragm 32 to a certain extent, thereby affecting the sealing effect of the diaphragm 32 on the water groove 23; in addition, after the diaphragm 32 is soaked in hot water and deformed multiple times with the operation of the diaphragm pump, there is a possibility of self-adhesion, which will also affect its sealing of the water groove 23; the setting of the separating groove 321 and the separating rib 224 ensures the sealing effect of the diaphragm 32 on the water groove 23, reduces the possibility of self-adhesion of the diaphragm 32 and reduces the influence of the connecting rod 221 on the diaphragm 32.

[0049] In order to further improve the connection strength between the fluid control plate 2 and the receiving portion 22, a plurality of reinforcing rods 222 are provided on the outer periphery of the receiving portion 22. The ends of the reinforcing rods 222 are arranged on the inner wall of the water outlet groove 21, and the reinforcing rods 222 are arranged between two adjacent connecting rods 221. Similarly, the reinforcing rods 222 are also made of plastic material, that is, the reinforcing rods 222 are also manufactured between the receiving portion 22 and the water outlet groove 21 by an integral molding process. The arrangement of the reinforcing rods 222 further enhances the structural strength of the receiving portion 22, improves the supporting ability of the receiving portion 22 for the water outlet valve 3, makes the receiving portion 22 less likely to deform during long-term use, helps to extend the service life of the diaphragm pump, and improves the overall performance of the equipment.

[0050] It should be noted that in the present invention, the reinforcing rods 222 and the connecting rods 221 are arranged at intervals, that is, a connecting rod 221 is arranged between two adjacent reinforcing rods 222, or it can also be said that a reinforcing rod 222 is arranged between two adjacent connecting rods 221. Thus, the actual number of the connecting rods 221 and the reinforcing rods 222 is the same. In addition, the reinforcing rods 222 and the connecting rods 221 are evenly arranged at intervals on the outer periphery of the receiving portion 22, that is, the distance between two adjacent connecting rods 221 is the same, and the distance between two adjacent reinforcing rods 222 is also the same. From this, it can be further obtained that with a certain reinforcing rod 222 as a reference, the distance between this reinforcing rod 222 and the two adjacent connecting rods 221 is also the same. This improves the overall symmetry of the receiving portion 22, thereby further improving the structural strength of the receiving portion 22 and ensuring the stability of the receiving portion 22. The above arrangement of the reinforcing rods 222 and the connecting rods 221 ensures the stability of the receiving portion 22, thereby indirectly improving the stability of the water outlet valve 3, that is, ensuring the normal operation of the water outlet valve 3.

[0051] Correspondingly, the diaphragm pump further includes a pump cover 4. The pump cover 4 is installed on the top of the fluid control plate 2. The pump cover 4 is used to seal the fluid control plate 2 and the pump body 1, and the pump cover 4 can also communicate with the water storage tank and the water outlet flow channel. In order to fix the diaphragm 32, that is, to limit the displacement of the installation portion 31, a limiting post 41 is provided on the pump cover 4, and a limiting portion 311 is formed by protruding on the top surface of the installation portion 31. When the pump cover 4 is installed on the fluid control plate 2, the limiting post 41 abuts against the limiting portion 311, thereby pressing the installation portion 31 against the receiving portion 22, that is, pressing the entire water outlet valve 3 against the receiving portion 22 to limit the displacement of the installation portion 31, prevent the water outlet valve 3 from moving upward during operation, ensure the sealing performance between the water outlet valve 3 and the fluid control plate 2, avoid water leakage, and improve the working efficiency and stability of the diaphragm pump.

[0052] To further restrict the displacement of the installation part 31, that is, to further ensure the sealing performance between the water outlet valve 3 and the fluid control board 2, a positioning part 312 is formed by a convexity on the bottom surface of the installation part 31, and a positioning groove 223 for the positioning part 312 to be embedded is formed by a concavity on the receiving part 22. The cooperation between the positioning part 312 and the positioning groove 223 further precisely positions the water outlet valve 3, enhances the stability of the water outlet valve 3, reduces the problems of water leakage or poor water flow caused by position deviation, and improves the sealing performance and working efficiency of the diaphragm pump. In addition, the cooperation between the positioning part 312 and the positioning groove 223 and the cooperation between the limiting part 311 and the limiting column 41 actually jointly limit the position of the installation part 31, so that the installation part 31 can maintain the stability of its position both during the installation process and during the working process of the diaphragm pump, thereby ensuring the sealing effect of the water outlet valve 3 on the water passing groove 23.

[0053] It should be noted that as described above, the opening of the partition groove 321 actually corresponds to the position of the connecting rod 221, that is, the number of the partition grooves 321 opened corresponds to the number of the connecting rods 221. It is not difficult to find that the number of the water passing grooves 23 also corresponds to the number of the connecting rods 221, and the number of the diaphragm flaps corresponds to the number of the partition grooves 321. Therefore, the number of the diaphragm flaps also corresponds to the number of the water passing grooves 23. And after the partition grooves 321 and the partition ribs 224 correspond to each other, the diaphragm flaps and the water passing grooves 23 are also in a one-to-one correspondence relationship. The corresponding setting of the diaphragm flaps and the water passing grooves 23 enables the water flow to pass through more precisely, reduces the random flow and resistance of the water flow, improves the utilization rate of the water flow and the working efficiency of the diaphragm pump, and helps to maintain the stability of the water outlet pressure at the same time.

[0054] From the perspective of installation, the cooperation between the partition groove 321 and the partition rib 224 also plays a role in preventing misassembly to a certain extent, reducing the occurrence of the situation where the diaphragm 32 loses the sealing effect on the water passing groove 23 due to improper installation position during the installation process, and improving the simplicity of the installation process to a certain extent. Based on this idea, that is, to further simplify the installation process, the positioning part 312 can be made in the shape of a prism, that is, the cross-section of the positioning part 312 in its length direction is a polygon. Correspondingly, the cross-section of the positioning groove 223 in its depth direction is also a polygon and corresponds to the positioning part 312. It should be noted that the polygons mentioned above can be triangles, quadrilaterals, pentagons... and so on. By analogy, in order to maintain the unity of the overall structure, the number of the edges of the positioning groove 223 and the positioning part 312 can be made to correspond to the number of the connecting rods 221, so that the center of gravity of the receiving part 22 is closer to the ideal center of gravity point, that is, the weight distribution of the receiving part 22 is more uniform, thereby further improving the stability of the overall structure.

[0055] In the present invention, the number of the partition grooves 321 is five. The five partition grooves 321 evenly divide the diaphragm portion of the water outlet diaphragm 32 into five diaphragm flaps. Such a quantity configuration can achieve refined control of the water flow. When the water flow passes through the diaphragm flaps, each diaphragm flap is responsible for transporting a part of the water flow, making the water flow distribution more uniform. Compared with a smaller number of partition grooves 321, such as three partition grooves 321, uneven water flow distribution may occur when the water flow passes through, resulting in excessive or insufficient water flow in some areas, affecting the stability of the water outlet and the flow accuracy. If the number of partition grooves 321 is too large, for example, ten partition grooves 321, although the water flow distribution will be more refined, too many diaphragm flaps will increase the resistance of the water flow, requiring a greater pressure for the water flow to pass through, reducing the drainage efficiency of the diaphragm pump and increasing the energy consumption at the same time. In addition, the design of five partition grooves 321 helps to maintain the structural stability of the water outlet diaphragm 32. The width of the diaphragm flaps between the partition grooves 321 is appropriate, which not only ensures that the diaphragm flaps have sufficient strength to withstand the pressure of the water flow but also avoids the risk of deformation caused by too wide diaphragm flaps. If the number of partition grooves 321 is too small and the diaphragm flap width is too large, the diaphragm flaps are prone to deformation under the impact of the water flow, affecting their normal operation and even possibly causing damage to the diaphragm 32. On the contrary, too many partition grooves 321 will make the diaphragm flaps too narrow, affecting the strength of the diaphragm flaps and also being prone to breakage under the action of the water flow, reducing the service life of the diaphragm pump. Moreover, from the perspective of the manufacturing process, five partition grooves 321 have better feasibility in mold manufacturing and product processing. Compared with a larger number of partition grooves 321, the complexity of the mold for manufacturing five partition grooves 321 is relatively low, and the processing cost is more controllable. If the number of partition grooves 321 is too large, the manufacturing precision requirements of the mold will be greatly improved, increasing the manufacturing difficulty and cost of the mold. At the same time, during the product processing, too many partition grooves 321 will also increase the processing procedures and time costs. If the number of partition grooves 321 is too small, although the manufacturing process is simple, the optimization of the water flow and the structure of the diaphragm 32 cannot be achieved, affecting the product performance.

[0056] In the present invention, a water inlet groove 24 is further recessed on the fluid control plate 2. A plurality of water inlet holes 241 are formed at the bottom of the water inlet groove 24, and the water inlet holes 241 are evenly spaced around the water outlet through groove 21; a water inlet valve 242 is installed on each water inlet hole 241; as the pressure inside the diaphragm pump changes, the water inlet valve 242 will continuously open or close, thereby completing the water inlet process of the diaphragm pump; the settings of the water inlet groove 24 and the water inlet holes 241 optimize the path of the water flow entering the diaphragm pump, enabling the water flow to enter more evenly, avoiding excessive or insufficient local water flow, improving the stability and uniformity of the water flow, helping to enhance the water absorption efficiency of the diaphragm pump, reducing the water flow resistance, ensuring the balanced force on each part of the diaphragm pump, and extending the service life of the equipment.

[0057] It should be noted that in the prior art, a number of combined holes are formed in the fluid control plate 2, and each combined hole is formed by combining a number of circular small holes. The water inlet valve 242 is used to cover the combined holes. Due to the limitation of the combined holes, the water pumping efficiency of the diaphragm pump is relatively low. In the present invention, in order to improve the water pumping efficiency, a support portion 243 is provided in the water inlet hole 241, and the support portion 243 divides the water inlet hole 241 into a number of kidney-shaped holes 244 and / or a number of fan-shaped holes 244. The design of the kidney-shaped holes 244 and the fan-shaped holes 244 changes the shape and distribution of the water inlet passage. Compared with the conventional circular small holes, it can increase the water inlet area, optimize the water flow entry path, and improve the water pumping efficiency and flow rate of the diaphragm pump; while the setting of the support portion 243 provides an installation position for the water inlet valve 242 to ensure the stable operation of the water inlet valve 242.

[0058] Correspondingly, in the present invention, the ratio of the major axis to the minor axis of the kidney-shaped hole is (2.5 - 1.5):1. The proportion setting of the kidney-shaped holes 244 optimizes the shape of the kidney-shaped holes 244, which can further improve the water flow passing efficiency, ensure that the resistance of the water flow passing through the kidney-shaped holes is small, make the water inlet process of the diaphragm pump smoother, contribute to improving the water pumping efficiency, and at the same time ensure the structural strength of the diaphragm pump to avoid affecting the performance of the fluid control plate 2 due to the unreasonable shape of the holes; the central angle of the fan-shaped holes 244 is 30° - 120°. The setting of the angle range of the fan-shaped holes 244 ensures that while providing a larger water inlet area, the fan-shaped holes 244 can maintain an appropriate hole spacing and structural strength. The appropriate central angle makes the water flow enter more evenly, avoiding problems such as unsmooth water flow and increased resistance caused by too large or too small an angle of the fan-shaped holes 244, and improving the water inlet performance of the diaphragm pump. It should be noted that in the present invention, the support portion 243 can divide the water inlet hole 241 into a number of kidney-shaped holes 244, or a number of fan-shaped holes 244, or a number of kidney-shaped holes 244 and a number of fan-shaped holes 244, and the separation method can be selected according to actual design needs; and in the present invention, the water inlet hole 241 formed by a number of kidney-shaped holes 244, or a number of fan-shaped holes 244, or a number of kidney-shaped holes 244 and a number of fan-shaped holes 244 is circular. Under certain specific design requirements or manufacturing processes, the circular water inlet hole 241 may be more convenient for processing and installation, can meet the needs of different users or products, and increases the flexibility of product design.

[0059] Specifically, the support portion 243 includes a support ring 2431 and a plurality of support ribs 2432. The support ring 2431 is located in the water inlet hole 241. A plurality of support ribs 2432 are circumferentially arranged on the outer periphery of the support ring 2431, and the ends of the support ribs 2432 are connected to the inner wall of the water inlet hole 241. The water inlet valve 242 is an umbrella-shaped valve, and the end of the water inlet valve 242 is inserted into the support ring 2431, so that the umbrella portion of the water inlet valve 242 can cover the water inlet hole 241. It should be noted that the end of the water inlet valve 242 has a limiting round head 2421, and after installation, the limiting round head 2421 will abut against the top surface of the support ring 2431. The water inlet valve 242 is made of rubber as a whole. During installation, the end of the water inlet valve 242 can be pulled to deform the limiting round head 2421 to pass through the support ring 2431. In the present invention, the structural design of the support ring 2431 and the support ribs 2432 enhances the stability and strength of the support portion 243, provides a more reliable installation support for the water inlet valve 242, ensures that the water inlet valve 242 will not be displaced or damaged due to insufficient support during operation, guarantees the normal water inlet function of the diaphragm pump, and extends the service life of the diaphragm pump.

[0060] In addition, a water inlet valve 242 is installed on each water inlet hole 241. As the pressure inside the diaphragm pump changes, the water inlet valve 242 will continuously open or close, thereby completing the water inlet process of the diaphragm pump. The arrangement of the water inlet groove 24 and the water inlet hole 241 optimizes the path of water flowing into the diaphragm pump, makes the water flow in more evenly, avoids excessive or too small local water flow, improves the stability and uniformity of the water flow, helps to improve the water absorption efficiency of the diaphragm pump, reduces the water flow resistance, ensures the balanced force on each part of the diaphragm pump, and extends the service life of the equipment. With the opening of the water inlet groove 24 and the water inlet hole 241, the force on each part of the fluid control plate 2 may be uneven. Therefore, a plurality of reinforcing portions 25 are formed by the convex inner wall of the water outlet groove 21, and the reinforcing portions 25 correspond to the water inlet holes 241 one by one. The arrangement of the reinforcing portions 25 enhances the structural strength of the water outlet groove 21, making it less likely to deform when bearing the water flow pressure. The design corresponding to the water inlet holes 241 one by one ensures the structural stability of the water inlet and outlet areas, helps to improve the overall reliability of the diaphragm pump, and reduces the probability of failure caused by weak structure.

[0061] Correspondingly, based on the above description, after the pump cover 4 and the fluid control plate 2 are enclosed, a water inlet cavity 42 and a water outlet cavity 43 will be formed. The water inlet cavity 42 is communicated with the water inlet hole 241, and the water outlet cavity 43 is communicated with the water outlet groove 21. As the diaphragm moves continuously, water will first enter the pump cavity from the water inlet cavity 42 through the water inlet hole 241, and then enter the water outlet cavity 43 through the water outlet groove 21 under the extrusion of the diaphragm. During this process, as the pressure changes generated by the movement of the diaphragm, the water inlet valve 242 and the water outlet valve 3 will alternately open and close, thereby completing the water inlet and outlet of the diaphragm pump.

[0062] It should be noted that a seal 5 is provided between the fluid control plate 2 and the pump cover 4. The seal 5 includes an outer ring 51 and an inner ring 52. The outer ring 51 of the seal 5 is located at the connection between the pump cover 4 and the fluid control plate 2, and the inner ring 52 is located between the water inlet chamber 42 and the water outlet chamber 43. Thus, the outer ring 51 is used to seal the connection between the pump cover 4 and the fluid control plate 2, and the inner ring 52 is used to isolate the water inlet chamber 42 and the water outlet chamber 43. The setting of the seal ring can enable a stable pressure difference to exist inside the pump body 1 and can separate the water inlet chamber 42 and the water outlet chamber 43. That is, the outer ring 51 of the seal 5 prevents water from leaking from the connection between the pump cover 4 and the fluid control plate 2, and the inner ring 52 isolates the water inlet chamber 42 and the water outlet chamber 43, effectively avoiding the cross-flow of water, ensuring the normal working process of the diaphragm pump, improving the working efficiency of the device, and at the same time preventing the corrosion of other components of the device by water leakage and extending the service life of the device.

[0063] In order to ensure the structural strength of the seal 5, a number of connecting ribs are provided between the inner ring 52 and the outer ring 51 of the seal 5. The connecting ribs are used to connect the inner ring 52 and the outer ring 51. The setting of the connecting ribs enhances the overall structural strength and stability of the seal 5, enables the inner ring 52 and the outer ring 51 to cooperate better, improves the sealing performance, and prevents problems such as deformation and displacement of the seal 5 during long-term use, further ensuring the waterproof and anti-cross-flow effects of the diaphragm pump and enhancing the reliability of the device. In order to further improve the adaptability of the overall structure, a sealing groove 26 is formed by the depression of the upper end surface of the fluid control plate 2. The sealing groove 26 is used to accommodate the outer ring 51 of the seal 5. The setting of the sealing groove 26 provides an accurate installation position for the outer ring 51 of the seal 5, enhances the installation stability of the seal 5, further improves the sealing effect at the connection between the pump cover 4 and the fluid control plate 2, effectively prevents water leakage, ensures the normal operation of the diaphragm pump, and improves the waterproof performance of the device. In addition, a number of positioning baffles 27 are provided on the fluid control plate 2. The positioning baffles 27 are used to provide a limit for the outer ring 51 of the seal 5. The number of positioning baffles 27 is actually arranged around the center of the fluid control plate 2. The setting of the positioning baffles 27 further restricts the position of the outer ring 51 of the seal 5, prevents it from shifting during the working process, ensures that the seal 5 always maintains a good sealing state, improves the waterproof performance and stability of the diaphragm pump, and avoids problems such as water leakage and cross-flow caused by the displacement of the seal 5, ensuring the normal operation of the device.

[0064] The above description is only an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A water purification device, characterized in that: A diaphragm pump is included. Pump body; A fluid control plate, the fluid control plate is arranged at the end of the pump body, and the fluid control plate is provided with a water outlet groove; A water outlet valve, the water outlet valve is arranged in the water outlet groove; The water outlet valve is circular and includes a mounting portion and a diaphragm. The diaphragm is arranged on the periphery of the mounting portion. A plurality of partition grooves are evenly spaced circumferentially on the diaphragm. The plurality of partition grooves divide the diaphragm into a plurality of membrane petals.

2. The water purification device according to claim 1, characterized in that: A plurality of dividing ribs are arranged in the water outlet groove, and the dividing ribs correspond to the dividing grooves one by one.

3. The water purification device according to claim 2, characterized in that: The number of the separation grooves is five.

4. The water purification device according to claim 2, characterized in that: A receiving portion is arranged in the water outlet groove, and the receiving portion is used to receive the mounting portion. A plurality of connecting rods are arranged on the periphery of the receiving portion, and the ends of the connecting rods are arranged on the inner wall of the water outlet groove, and the connecting rods are used to provide support for the receiving portion.

5. The water purification device according to claim 4, characterized in that: The bottom surface of the mounting portion is convex to form a positioning portion, and the receiving portion is concave to form a positioning groove for the positioning portion to be embedded.

6. The water purification device according to claim 5, characterized in that: The cross section of the positioning portion in the length direction thereof is polygonal.

7. The water purification device according to claim 4, characterized in that: A plurality of reinforcing rods are also arranged on the outer periphery of the receiving portion, the ends of the reinforcing rods are arranged on the inner wall of the water outlet groove, and the reinforcing rods are arranged between two adjacent connecting rods.

8. The water purification device according to claim 4, characterized in that: The connecting rods correspond to the dividing ribs one by one.

9. The water purification device according to any one of claims 4 to 8, characterized in that: The fluid control plate is recessed to form a water inlet groove, and a plurality of water inlet holes are provided at the bottom of the water inlet groove. The plurality of water inlet holes are evenly spaced around the water outlet groove.

10. The water purification device according to claim 9, characterized in that: The water purification equipment also includes a pump cover, which is installed on the top of the fluid control board. The top surface of the installation portion is raised to form a limiting portion. A limiting column is arranged on the pump cover. When the pump cover is installed on the fluid control board, the limiting column conflicts with the limiting portion.

11. The water purification device according to claim 10, characterized in that: The pump cover and the fluid control plate are combined to form a water inlet cavity and a water outlet cavity, the water inlet hole is communicated with the water inlet cavity, the water outlet groove is communicated with the water outlet cavity, a seal is arranged between the fluid control plate and the pump cover, the seal comprises an outer ring and an inner ring, the outer ring is used to seal the connection between the pump cover and the fluid control plate, and the inner ring is used to isolate the water inlet cavity from the water outlet cavity.

12. The water purification device according to claim 11, characterized in that: A plurality of connecting ribs are provided between the inner ring and the outer ring, and the connecting ribs are used to connect the inner ring and the outer ring.

13. The water purification device according to claim 12, characterized in that: The upper end surface of the fluid control plate is recessed to form a sealing groove, and the sealing groove is used to accommodate the outer ring.

14. The water purification device according to claim 9, characterized in that: The diaphragm pump also includes a water inlet valve. The water inlet hole is circular. A support portion for installing the water inlet valve is arranged in the water inlet hole. The support portion divides the water inlet hole into a plurality of waist-shaped holes and / or a plurality of fan-shaped holes.

15. The water purification device according to claim 14, characterized in that: The ratio of the major axis to the minor axis of the waist-shaped hole is (2.5-1.5):1, and the central angle of the fan-shaped hole is 30°-120°.

16. The water purification device according to claim 14, characterized in that: The support portion comprises a support ring and a plurality of support ribs, wherein the plurality of support ribs are circumferentially arranged on the outer periphery of the support ring, and ends of the support ribs are arranged on the inner wall of the water inlet hole.

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