Interchangeable series-parallel standardized fluid channel valve and diaphragm pump thereof

Abstract

The present invention relates to an interchangeable series-parallel standardized fluid channel valve and a diaphragm pump thereof, comprising a cover plate (1), a fluid channel model (2), a diaphragm seat (3), and a driving mechanism (4). The cover plate (1) is provided with a fluid inlet (11) and a fluid outlet (12). The fluid channel model (2) comprises a one-way valve seat (21) that is fluid-adapted and connected to the cover plate (1), a fluid channel valve seat (23) that is fluid-adapted and connected to the diaphragm seat, and a fluid channel valve plate (22) that is arranged between the one-way valve seat (21) and the fluid channel valve seat (23) for sealing and guiding; the fluid channel valve seat (23) comprises a channel valve plate cavity (238) formed by an inner concave, and the fluid channel valve plate (22) is adapted to be sealed and fixed in the channel valve plate cavity (238) to form a valve cavity. When a large fluid pressure is required, a series structure is selected, and when a large fluid flow is required, a series structure is selected.

Description

Technical Field

[0001] The invention relates to a micro pump device, in particular to a micro pump with serial-parallel interchangeable modular installation and one-way check function, in particular to an interchangeable serial-parallel standardized fluid channel valve and a diaphragm pump thereof. Background Art

[0002] Micro diaphragm pumps have the advantages of low noise, corrosion resistance, high pressure, etc. They are easy to replace and install, and are widely used in reverse osmosis water purification systems, filters, spray devices, industrial equipment, chemical metering and liquid addition, sanitation, environmental protection, and printing industries. The micro diaphragm pump is generally implemented by a motor driving an eccentric wheel device to make the diaphragm inside the pump do reciprocating motion, so as to achieve the purpose of pumping fluids and then delivering them.

[0003] Generally, there are more than two diaphragm bowl-shaped capsules in a diaphragm pump. The fluid delivery normally has parallel output in parallel and serial delivery structure in series, which is a two-way fluid delivery model. However, in the Chinese patent "CN201922006223.X A serial diaphragm mechanism, CN201911135658.2 A serial diaphragm pump with non-return and anti-leakage function", in many cases, a non-return one-way structure is required on the outlet to prevent fluid dripping, etc., and it is set on the one-way valve outlet structure, which is more convenient for the structure of two diaphragm bowl-shaped capsules in series. However, the serial and parallel structures have their own advantages and disadvantages. For example, the pressure extracted by the serial diaphragm pump is stronger, while the flow rate of the parallel diaphragm pump will be larger. Nowadays, the intelligent and humanized products have higher and higher requirements for the precise control of the fluid and the performance function. The pressure and flow required by diaphragm pumps for different purposes need to be very precise in design. Therefore, on the basis of realizing the pressure in the serial structure, the design of the parallel structure is also needed to realize the flow control.

[0004] In view of the above shortcomings, the present invention adopts the following technical solutions to improve them. Summary of the invention

[0005] The purpose of the present invention is to provide an interchangeable series-parallel standardized fluid channel valve and a diaphragm pump thereof, and the disclosed technical solution is as follows:

[0006] A standardized fluid channel valve that can be interchangeably connected in series and parallel, comprising a fluid channel valve disc (22) and a fluid channel valve seat (23), wherein the fluid channel valve seat (23) comprises a channel valve disc cavity (238) formed by an inner recess, and the fluid channel valve disc (22) is adapted to be sealed and fixed in the channel valve disc cavity (238) to form a valve cavity;

[0007] It is characterized in that the fluid channel valve plate (22) is configured as a plurality of valve plate sealing cavities (222) surrounded by a channel valve plate convex edge (221), the valve plate sealing cavity (222) contains a plurality of channel valve membrane components (223) of the same size, and a channel valve membrane (224) is arranged at the center of each channel valve membrane component (223); the channel valve plate cavity (238) is configured as a plurality of valve seat sealing cavities (2382) surrounded by a channel valve seat concave edge (2381), the valve seat sealing cavity (2382) contains a plurality of channel valve hole components (2383) of the same size, and a channel valve hole (2384) is arranged in each channel valve hole component (2383); the size and shape of the channel valve membrane component (223) and the channel valve hole component (2383) correspond one-to-one.

[0008] Among them, each channel valve membrane (224) is standardized and set at the center of the channel valve membrane assembly (223), and each channel valve hole (2384) is standardized as a fluid outlet channel valve hole (2384a) set at the center of the channel valve hole assembly (2383), and a fluid inlet channel valve hole (2384b) is set at the edge of the channel valve hole assembly (2383). The channel valve membrane (224) standardized at the center corresponds to the fluid outlet channel valve hole (2384a) at the center, and the fluid inlet channel valve hole (2384b) standardized at the edge avoids the channel valve membrane (224). The standardized structure fluid outlet channel valve hole (2384a) is set at the center of the channel valve hole assembly (2383) and the fluid inlet channel valve hole (2384b) is set at the edge of the channel valve hole assembly (2383), so that the fluid channel valve plate (22) and the fluid channel valve seat (23) can be selectively matched. In the fluid channel model, any setting or increase of inlet and outlet channels is more convenient for detailed control of flow realization in series and parallel connection or product design.

[0009] Furthermore, the channel valve membrane (224) arranged at the center of the standardized channel valve membrane assembly (223) is relatively hung at the center of the through-hole-shaped channel valve membrane assembly (223) through two identical T-shaped ribs (225), and the channel valve membrane (224) is arranged as a circular sheet membrane directly opposite to the circular fluid outlet channel valve hole (2384a) arranged in a standardized manner at the center of the channel valve hole assembly (2383), and the fluid inlet channel valve hole (2384b) corresponds to the through-hole (226) outside the channel valve membrane (224) and the T-shaped rib (225).

[0010] Furthermore, a valve membrane protrusion (2241) is provided around the channel valve membrane (224) to seal against the fluid outlet channel valve hole (2384a).

[0011] Furthermore, the series channel is not provided with a channel valve membrane assembly (223), but is provided with a whole valve membrane divided into different sealing cavities by the channel valve plate convex edge (221a).

[0012] Furthermore, in the standardized channel valve hole assembly (2383), a recessed portion (2386) and a centrally intersecting groove (2387) corresponding to the fluid inlet channel valve hole (2384b) are provided, which are more suitable for the normally open state of the fluid inlet channel valve hole (2384b) provided on the side, and an outlet channel groove (2385) is provided around the fluid outlet channel valve hole (2384a) to adapt to the channel valve membrane assembly (223).

[0013] Furthermore, when the channel valve membrane assembly (223) and the channel valve hole assembly (2383) have a fluid outlet channel valve hole (2384a) and a corresponding channel valve membrane (224) in the middle to form a fluid channel, they are merged into a valve plate sealing cavity (222) and a valve seat sealing cavity (2382) to form an outlet channel.

[0014] Furthermore, one of the groups between the channel valve membrane assembly (223) and the channel valve hole assembly (2383) is provided with a series channel (2388) and a series hole (2389), so that the two middle channel valve hole assemblies (2383) form a series channel.

[0015] Furthermore, the fluid channel valve seat (23) further comprises a channel valve seat convex edge (237) arranged at the edge to enclose a concave channel valve plate cavity (238).

[0016] The present invention also discloses a diaphragm pump with interchangeable series-parallel standardized fluid channel valves, comprising a cover plate (1), a fluid channel model (2), a diaphragm seat (3), and a drive mechanism (4); the cover plate (1) is provided with a fluid inlet (11) and a fluid outlet (12); the fluid channel model (2) comprises a one-way valve seat (21) which is fluid-adaptive and connected to and fixed on the cover plate (1); a fluid channel valve seat (23) which is fluid-adaptive and connected to and fixed on the diaphragm seat; and a fluid channel valve plate (22) which is arranged between the one-way valve seat (21) and the fluid channel valve seat (23) for sealing and guiding; the fluid channel valve seat (23) comprises a channel valve plate cavity (238) formed by an inner recess; the fluid channel valve plate (22) is adapted to be sealed and installed in the channel valve plate cavity (238) to form a valve cavity.

[0017] Wherein, the fluid channel valve plate (22) is configured as a plurality of valve plate sealing cavities (222) surrounded by a channel valve plate convex edge (221), wherein the valve plate sealing cavity (222) contains a plurality of channel valve membrane assemblies (223) of the same size, and a channel valve membrane (224) is arranged at the center of each channel valve membrane assembly (223); the channel valve plate cavity (238) is configured as a plurality of valve seat sealing cavities (2382) surrounded by a channel valve seat concave edge (2381), wherein the valve seat sealing cavity (2382) contains a plurality of channel valve hole assemblies (2383) of the same size, and a channel valve hole (2384) is arranged in each channel valve hole assembly (2383); the size and shape of the channel valve membrane assembly (223) and the channel valve hole assembly (2383) correspond one-to-one.

[0018] Among them, each channel valve membrane (224) is standardized and set at the center of the channel valve membrane assembly (223), and each channel valve hole (2384) is standardized as a fluid outlet channel valve hole (2384a) set at the center of the channel valve hole assembly (2383), and a fluid inlet channel valve hole (2384b) is set at the edge of the channel valve hole assembly (2383). The channel valve membrane (224) standardized at the center corresponds to the fluid outlet channel valve hole (2384a) at the center, and the fluid inlet channel valve hole (2384b) standardized at the edge avoids the channel valve membrane (224).

[0019] The present invention also discloses a standardized manufacturing method for interchangeable series-parallel pump fluid channel valves, which is characterized in that the manufacturing method divides the fluid channel valve cavity into a plurality of connecting structures of the same size and shape, so that when the diaphragm pump function is designed, various fixed models are standardized and replaced on the fluid channel, thereby simplifying the design method of the diaphragm pump fluid channel. Technicians in the field are well aware that the current micro-diaphragm pumps are already very mature in terms of drive mechanism and outlet design, and the difficulty lies in the control of the fluid channel valve in flow control to achieve more and more sophisticated instruments and daily necessities. Therefore, the modularized standardized manufacturing method is more suitable for product upgrades and fine-tuning, and the specific manufacturing method steps are as follows:

[0020] a. The entire fluid channel valve cavity is divided into a plurality of regions of the same size, each region is made into a single valve channel structure of the same size;

[0021] b. Make a valve diaphragm corresponding to the size of the valve cavity of the entire fluid channel, divide the valve diaphragm into areas corresponding to each single valve channel of the same size, and make a separate one-way valve structure in each diaphragm area of ​​the same size in the valve diaphragm, standardize and make a circular valve in the center, and make a relative T-shaped

[0022] c. The valve cavity is divided into valve seat areas of the same size, each corresponding single valve seat area is a corresponding single valve diaphragm of the same size, and each valve seat area of ​​the same size is made into an outlet valve hole or an inlet valve hole, and when making the outlet valve hole, it is uniformly and standardizedly set at the center of the valve seat area. Corresponding to a separate one-way valve plate structure made in the center of each diaphragm area of ​​the same size, when making the inlet valve hole, it is uniformly and standardizedly set at the edge outside the center of the valve seat area;

[0023] d. The valve seat and the edge of the valve diaphragm are sealed to form a valve cavity.

[0024] According to the above technical scheme, the present invention has the following beneficial effects:

[0025] 1. The interchangeable series-parallel standardized fluid channel valve of the present invention unifies and standardizes the series fluid channel structure and the parallel fluid channel structure into a model, which can be used interchangeably in the same product, so that when a high fluid pressure is required, the series structure is selected, and when a large fluid flow rate is required, the series structure is selected;

[0026] 2. The fluid channel valve in the present invention is divided into a plurality of valve channel accessories of the same size and shape. The valve seat and the valve plate are correspondingly a plurality of single channel valve hole assemblies and channel valve membrane assemblies of the same size and shape that are compatible with each other. The concave edge of the channel valve seat and the convex edge of the valve plate cooperate with a plurality of mutually compatible channel valve hole assemblies and channel valve membrane assemblies to form the fluid inlet channel and outlet channel, thereby realizing highly flexible selection of modularized, standardized replacement and unified installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the overall structure of the pump of the preferred embodiment of the present invention;

[0028] Figure 2 Schematic diagram of the explosion of the pump structure of the preferred embodiment of the present invention;

[0029] Figure 3 A schematic cross-sectional view of the internal structure of the pump of the preferred embodiment of the present invention;

[0030] Figure 4 A schematic diagram of the installation structure of the fluid channel model of the best embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the structure of the fluid channel model of the preferred embodiment of the present invention;

[0032] Figure 6 A schematic diagram of the structure of the fluid channel model of the preferred embodiment of the present invention;

[0033] Figure 7It is a schematic diagram of the exploded top view of the serial fluid channel model of the best embodiment of the present invention;

[0034] Figure 8 A schematic diagram of a top view of a parallel fluid channel model according to a preferred embodiment of the present invention;

[0035] Fig. 9 It is a schematic diagram of the decomposed bottom view structure of the series fluid channel model of the best embodiment of the present invention;

[0036] Fig.10 It is a schematic diagram of the exploded bottom view structure of the parallel fluid channel model of the best embodiment of the present invention;

[0037] Fig.11 A schematic diagram of the structure of the one-way valve installed through an elastic member in the best embodiment of the present invention;

[0038] Fig.12 This is a schematic diagram of an exploded top view of a one-way valve according to a preferred embodiment of the present invention;

[0039] Fig.13 This is a schematic diagram of the exploded bottom view of the one-way valve of the best embodiment of the present invention;

[0040] Fig.14 A schematic top view of a one-way valve structure of a preferred embodiment of the present invention;

[0041] Fig.15 A bottom view schematic diagram of a one-way valve structure of a preferred embodiment of the present invention;

[0042] Fig.16 A schematic diagram of the structure of the one-way valve and the cover plate installed in cooperation with each other in the preferred embodiment of the present invention;

[0043] Fig.17 This is a schematic diagram of the installation and matching structure of the elastic member and the cover plate in the best embodiment of the present invention;

[0044] Fig.18 A schematic diagram of a three-dimensional cover structure of the preferred embodiment of the present invention;

[0045] Fig.19 A schematic front view of the cover structure of the preferred embodiment of the present invention;

[0046] Fig. 20 A schematic diagram of the diaphragm structure of the best embodiment of the present invention;

[0047] Fig.21 A schematic diagram of a serial fluid passage valve seat according to a preferred embodiment of the present invention;

[0048] Fig. 22 A schematic diagram of a parallel fluid channel valve seat according to a preferred embodiment of the present invention;

[0049] Fig.23 A three-dimensional schematic diagram of a parallel diaphragm valve sheet according to a preferred embodiment of the present invention;

[0050] Fig.24 It is a front view schematic diagram of a parallel diaphragm valve sheet of the best embodiment of the present invention;

[0051] Fig.25 A three-dimensional schematic diagram of a series-connected diaphragm valve sheet according to a preferred embodiment of the present invention;

[0052] Fig.26 It is a front view schematic diagram of a series-type diaphragm valve sheet according to a preferred embodiment of the present invention;

[0053] Fig. 27 A three-dimensional schematic diagram of a parallel diaphragm valve seat according to a preferred embodiment of the present invention;

[0054] Fig.28 It is a front view schematic diagram of a parallel diaphragm valve seat of the best embodiment of the present invention;

[0055] Fig.29 A three-dimensional schematic diagram of a series diaphragm valve seat according to a preferred embodiment of the present invention;

[0056] Fig.30 It is a front view schematic diagram of a tandem diaphragm valve seat of the best embodiment of the present invention;

[0057] Fig.31 This is a schematic structural diagram of a channel valve membrane assembly according to a preferred embodiment of the present invention;

[0058] Fig.32 A schematic diagram of the structure of the inlet channel valve hole assembly of the best embodiment of the present invention;

[0059] Fig.33 A schematic diagram of the structure of the outlet channel valve hole assembly of the best embodiment of the present invention;

[0060] In the figure,

[0061] Cover plate 1, one-way valve disc 10, fluid inlet valve disc through hole 101, fluid outlet channel 102, fluid outlet valve disc through hole 1021, retaining edge 103, annular groove 104, circular convex edge 105, fluid inlet 11, fluid outlet 12, elastic member 13, first fixing hole 14, first notch 15, valve disc limiting wall 16, elastic device limiting slot 17, convex ring 18;

[0062] Fluid channel model 2, one-way valve seat 21, fluid inlet cavity 211, first inlet through hole 2111, fluid outlet cavity 212, first outlet through hole 2121, first inlet through hole 2111, one-way valve seat cavity 213, first convex column 214, first convex block 215, first limiting sealing groove 216, third fixing hole 217, third missing groove 218, concave ring 219, valve plate limiting groove 210, arc groove 2112, fluid channel valve plate 22, channel valve plate convex edge 221, 221b, valve plate sealing cavity 222, channel valve membrane assembly 223, 223a, 223b, 223c, 223d, channel valve membrane 224, valve membrane convex edge 2241, T-shaped rib 225, through hole 226, Fluid channel valve seat 23, bowl-shaped groove 231, second inlet through hole 2311, second outlet through hole 2312, convex edge 2313, fluid guide groove 2314, fluid guide groove 2314, circular bottom groove 2315, second fixing hole 232, second notch 233, third convex column 235, third convex block 236, channel valve seat convex edge 237, channel valve plate cavity 238, channel valve seat concave edge 2381, valve seat sealing cavity 2382, channel valve hole assembly 2383, channel valve hole 2384, fluid outlet channel valve hole 2384a, fluid inlet channel valve hole 2384b, outlet channel groove 2385, recessed portion 2386, concave strip 2387, series channel 2388, series hole 2389;

[0063] Diaphragm seat 3, diaphragm 31, diaphragm bag 311, second protrusion 315;

[0064] Driving mechanism 4, motor 41; buckle 5. DETAILED DESCRIPTION

[0065] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0066] like Figures 1 to 10 The diaphragm pump shown includes a cover plate 1, a fluid channel model 2, a diaphragm seat 3, and a driving mechanism 4. The cover plate 1 is provided with a fluid inlet 11 and a fluid outlet 12. The fluid channel model 2 is installed between the cover plate 1 and the diaphragm seat 3. The driving mechanism is driven and connected to the diaphragm seat to drive the movement of the diaphragm 31 of the diaphragm seat 3. The fluid channel model 2 includes a one-way valve seat 21 that is fluid-adapted and connected to the cover plate 1, a fluid channel valve seat 23 that is fluid-adapted and connected to the diaphragm seat, and a fluid channel valve plate 22 that is arranged between the one-way valve seat 21 and the fluid channel valve seat 23 for sealing and guiding; the fluid channel model 2 is configured as a connection structure that can be replaced as a whole, and the whole is replaced with a series fluid channel structure or a parallel fluid channel.

[0067] like Figures 5 to 8As shown, the one-way valve seat 21 includes a fluid inlet chamber 211 and a fluid outlet chamber 212 which are fluidically connected to the cover plate 1, and also includes a first inlet through hole 2111 arranged in the fluid inlet chamber 211 and a first outlet through hole 2121 arranged in the fluid outlet chamber 212, wherein the fluid inlet chamber 211 and the fluid outlet chamber 212 are arranged as inner and outer ring structures, and are sealed by a one-way valve plate 10 fixed between the cover plate 1 and the one-way valve seat 21 by an elastic member 13, and the fluid inlet chamber 211 and the fluid outlet chamber 212 constitute a one-way valve seat chamber 213 of the one-way valve plate 10.

[0068] like Figures 7 to 10 As shown in FIG. 1 , the number of the first outlet through holes 2121 of the one-way valve seat 21 in the series structure is less than that in the parallel structure. The most preferred structure is as follows: Figure 7 and Fig. 9 The one-way valve seat 21 in the serial structure shown in FIG. 1 is provided with a first outlet through hole 2121. Figure 8 and Fig.10 The one-way valve seat 21 in the parallel structure is provided with four first outlet holes 2121. Generally, when a diaphragm pump with a serial structure design is used, the standard flow pressure requirement is relatively high, and the fewer the number of outlet holes designed, the greater the pressure will be. When a diaphragm pump with a parallel structure design is used, the standard flow requirement is relatively high. When the number of outlet holes designed is large, the vortex will be larger, and the four outlet holes are designed around the outlet channel, which is more balanced in the flow on both sides of the parallel structure.

[0069] like Figure 7 , 12 and Fig.13 As shown in FIG. 1 , the one-way valve seat 21 further includes a first protrusion 214 for fixing with the first fixing hole 14 of the cover plate 1 at a defined position, and Figure 5 and Fig.13 As shown in , it also includes a first protrusion 215 with limiting and installation identification functions, which is used to cooperate with the first notch 15 of the cover plate 1 to identify, limit and fix when assembling the fluid channel model and the cover plate.

[0070] like Figures 4 to 10 As shown, the inner and outer ring structures are provided with a fluid inlet chamber 211 and a fluid outlet chamber 212, the fluid outlet chamber 212 is provided with a central cylindrical cavity, the fluid inlet chamber 211 is symmetrically arranged outside the fluid outlet chamber 212 of the central cylindrical cavity, and the one-way valve plate 10 is provided with a fluid inlet valve plate through hole 101 adapted to the first inlet through hole 2111.

[0071] like Figure 2 and Figure 6The fluid channel valve seat 23 in the figure includes a bowl-shaped groove 231 which is fluidly connected to the diaphragm 31 on the diaphragm seat 3, and the diaphragm bag 311 of each diaphragm 31 is adapted to a bowl-shaped groove 231. The bowl-shaped groove 231 is provided with a second inlet hole 2311 and a second outlet hole 2312 of the fluid channel for fluid inlet and outlet.

[0072] like Fig.21 and Fig. 22 As shown, when there are two bowl-shaped grooves 231 arranged side by side, the second outlet through hole 2312 is arranged on the connection of the center of the bowl-shaped grooves 231, and the second inlet through hole 2311 is arranged outside the center of the two bowl-shaped grooves 231. The second inlet through hole 2311 and the second outlet through hole 2312 are arranged on the arc-shaped part surface of the side wall of the bowl-shaped groove 231, and the second inlet through hole 2311 and the second outlet through hole 2312 form a certain angle, and are respectively arranged on the arc-shaped part surfaces of the side wall of the bowl-shaped groove 231 at different heights. The height of the second outlet through hole 2312 is closer to the edge of the bowl-shaped groove 231, and the edge of the bowl-shaped groove 231 is provided with a convex edge 2313. The periphery of the second inlet through hole 2311 and the second outlet through hole 2312 is provided with a fluid guide groove 2314, and the fluid guide groove 2314 forms a channel with the center of the bowl-shaped groove 231. The fluid channel valve seat 23 further includes a second fixing hole 232 which cooperates with and fixes with the second convex column 314 on the diaphragm seat 3 . The fluid channel valve seat 23 further includes a second notch 233 which is used for installation, identification and fixation with the second convex block 315 on the diaphragm seat 3 .

[0073] like Figures 7 to 10 As shown, the fluid channel valve plate 22 is adapted to be installed between the first limiting sealing groove 216 and the second limiting sealing groove 234 respectively arranged on the one-way valve seat 21 and the fluid channel valve seat 23, and is limited and fixed by the third fixing hole 217 arranged on the one-way valve seat 21 and the third protrusion 235 arranged on the fluid channel valve seat 23, and the third notch 218 arranged on the one-way valve seat 21 and the third protrusion 236 arranged on the fluid channel valve seat 23 to identify the installation limit fixation.

[0074] like Figures 2 to 19The diaphragm pump with a one-way valve structure shown in the figure includes a cover plate 1, a fluid channel model 2, a diaphragm seat 3, and a driving mechanism 4. The cover plate 1 is provided with a fluid inlet 11 and a fluid outlet 12. The fluid channel model 2 is installed between the cover plate 1 and the diaphragm seat 3. The driving mechanism is driven and connected to the diaphragm seat to drive the movement of the diaphragm 31 of the diaphragm seat 3. The fluid channel model 2 also includes a one-way valve seat 21 that is fixedly connected to the cover plate 1 in fluid communication, and a one-way valve disc 10 that is arranged in the one-way valve seat 21 and the inner cavity of the cover plate 1. Among them, the one-way valve disc 10 is arranged as a fluid outlet channel 102 of a centrally protruding cylinder. The one-way valve disc 10 is connected and fixed to the fluid outlet 12 of the cover plate 1 through an elastic device 13 arranged on the periphery of the convex cylindrical fluid outlet channel 102, and a fluid inlet valve disc through hole 101 that is adapted to the fluid inlet 11 is arranged on the side of the valve body of the one-way valve disc 10, and the other end of the elastic device 13 is limited to the elastic device limit card groove 17 of the cover plate 1.

[0075] like Fig.14 and 15 As shown, the one-way valve disc 10 is arranged as a rhombus symmetrical structure, the cylindrical fluid outlet channel 102 is arranged at the exact center of the rhombus one-way valve disc 10, and the fluid inlet valve disc through hole 101 is arranged on the two symmetrical acute angle surface parts of the rhombus one-way valve disc 10. The one-way valve disc 10 is provided with a protruding rib 103 between the fluid inlet valve disc through hole 101 close to the valve seat surface and the fluid outlet valve disc through hole 1021 of the fluid outlet channel 102. The rib 103 is arranged in an arc shape to surround the fluid outlet channel 102, and is clamped and fixed with the arc groove 2112 matched with the valve seat. The one-way valve plate 10 is embossed with a circle of concave and convex shapes around the fluid outlet valve plate through hole 1021 surrounding the fluid outlet channel 102. The circular groove 104 close to the cover plate surface is sealed and fixedly matched with the convex ring 18 provided on the fluid outlet 12 on the cover plate, and the circular convex edge 105 close to the valve seat surface is sealed and fixedly matched with the concave ring 219 on the one-way valve seat.

[0076] like Fig.16 and Fig.17 In, and Fig.12 As shown in the figure, the one-way valve disc 10 is adapted to be sealed by the valve disc limiting wall 106 provided on the cover plate 1 and the valve disc limiting groove 210 provided on the one-way valve seat 21 to form a valve cavity with inner and outer surrounding fluid inlet and outlet channels.

[0077] like Fig.11 , Fig.12 and Fig.14The one-way valve in the invention comprises a cover plate 1, a one-way valve seat 21, and a one-way valve disc 10 disposed in the cover plate 1 and the one-way valve seat 21. The one-way valve disc 10 is adapted to be sealed by a valve disc limiting wall 16 disposed on the cover plate 1 and a valve disc limiting groove 210 disposed on the one-way valve seat 21 to form a valve cavity having a fluid inlet and outlet channel surrounded inside and outside. The one-way valve disc 10 is configured as a fluid outlet channel 102 of a centrally protruding cylinder. The one-way valve disc 10 is adapted to be fluidically connected and fixed with a fluid outlet 12 of the cover plate 1 through an elastic device 13 disposed on the periphery of the convex cylindrical fluid outlet channel 102, and a fluid inlet valve disc through hole 101 adapted to the fluid inlet 11 is disposed on the side of the valve body of the one-way valve disc 10. The one-way valve disc 10 is configured as a rhombus symmetrical structure. The cylindrical fluid outlet channel 102 is disposed at the exact center of the rhombus-shaped one-way valve disc 10, and the fluid inlet valve disc through hole 101 is disposed on the acute angle surface portions of the rhombus-shaped one-way valve disc 10 symmetrical on both sides.

[0078] like Fig.12 In the figure, the one-way valve disc 10 is embossed with a circle of concave and convex shapes around the fluid outlet valve disc through hole 1021 surrounding the fluid outlet channel 102, the annular groove 104 close to the cover plate surface is matched and sealed with the convex ring 18 set on the fluid outlet 12 on the cover plate, the circular convex edge 105 close to the valve seat surface is matched and sealed with the concave ring 219 on the one-way valve seat 21, and the first outlet through hole 2121 on the valve seat is set on the annular surface of the concave ring 219.

[0079] like Figures 7 to 10 As shown in , the number of first outlet through holes 2121 of the one-way valve seat 21 of the serial structure is less than that of the parallel structure. The most preferred structure is that the one-way valve seat 21 in the serial structure is provided with one first outlet through hole 2121, and the one-way valve seat 21 in the parallel structure is provided with four first outlet through holes 2121. Generally, when a diaphragm pump designed with a serial structure is used, the requirement for the standard flow rate pressure is relatively high. The fewer the number of designed outlet through holes, the greater the pressure. When a diaphragm pump designed with a parallel structure is used, the requirement for the standard flow rate is relatively high. When the number of designed outlet through holes is large, the flow rate is relatively large. In addition, the four outlet holes are designed around the outlet channel, which is more balanced than the flow rates on both sides of the parallel structure.

[0080] like Figures 23 to 33 The standardized fluid channel valve structure shown includes a fluid channel valve disc 22 and a fluid channel valve seat 23. The fluid channel valve seat 23 includes a channel valve disc cavity 238 surrounded by an inner recess. The fluid channel valve disc 22 is adapted to be sealed and fixed in the channel valve disc cavity 238 to form a valve cavity.

[0081] like Figure 8 , Fig.23 and Fig.29As shown in the figure, the fluid channel valve plate 22 is configured as a plurality of valve plate sealing cavities 222 surrounded by a channel valve plate convex edge 221, and the valve plate sealing cavity 222 contains a plurality of channel valve membrane components 223 of the same size, and a channel valve membrane 224 is arranged at the center of each channel valve membrane component 223; a plurality of valve seat sealing cavities 2382 surrounded by a channel valve seat concave edge 2381 are arranged in the channel valve plate cavity 238, and the valve seat sealing cavity 2382 contains a plurality of channel valve hole components 2383 of the same size, and a channel valve hole 2384 is arranged in each channel valve hole component 2383; the channel valve membrane component 223 is adapted to the channel valve hole component 2383 in one-to-one correspondence in size and shape. Each channel valve membrane 224 is standardized and arranged at the center of the channel valve membrane assembly 223. Each channel valve hole 2384 is standardized as a fluid outlet channel valve hole 2384a arranged at the center of the channel valve hole assembly 2383 and a fluid inlet channel valve hole 2384b arranged at the edge of the channel valve hole assembly 2383. The channel valve membrane 224 standardized and arranged at the center corresponds to the fluid outlet channel valve hole 2384a at the center, and the fluid inlet channel valve hole 2384b standardized and arranged at the edge avoids the channel valve membrane 224. The standardized structure of the fluid outlet channel valve hole 2384a arranged at the center of the channel valve hole assembly 2383 and the fluid inlet channel valve hole 2384b arranged at the edge of the channel valve hole assembly 2383 realizes the optional matching of the fluid channel valve sheet 22 and the fluid channel valve seat 23. In the fluid channel model, any setting or addition of inlet and outlet channels is more convenient for detailed control of series and parallel connection or flow realization in product design.

[0082] like Fig.31 , Fig.32 and Fig.33 As shown in the figure, the channel valve membrane 224 arranged in the center of the standardized channel valve membrane assembly 223 is relatively hung in the center of the through-hole-shaped channel valve membrane assembly 223 through two identical T-shaped ribs 225. The channel valve membrane 224 is arranged as a circular sheet membrane, which is arranged in the center of the circular fluid outlet channel valve hole 2384a arranged in the standardized manner in the center of the channel valve hole assembly 2383, and the fluid inlet channel valve hole 2384b corresponds to the through-hole 226 outside the channel valve membrane 224 and the T-shaped rib 225. A valve membrane convex edge 2241 is arranged around the channel valve membrane 224, which is sealed and fitted to the fluid outlet channel valve hole 2384a.

[0083] like Fig.25 and Fig.26 As shown, the series channel is not provided with a channel valve membrane assembly 223, but is provided with a whole valve membrane divided into different sealing cavities by the channel valve plate convex edge 221a.

[0084] like Fig. 27 and Fig.28As shown in the figure, in the standardized channel valve hole assembly 2383, the concave portion 2386 and the central cross concave strip 2387 corresponding to the fluid inlet channel valve hole 2384b are set in the center, which is more suitable for the fluid inlet channel valve hole 2384b set on the side to be in the normally open state, and the outlet channel groove 2385 is set around the fluid outlet channel valve hole 2384a to adapt to the channel valve membrane assembly 223. When the fluid outlet channel valve hole 2384a and the corresponding channel valve membrane 224 form a fluid channel in the middle of the channel valve membrane assembly 223 and the channel valve hole assembly 2383, they are merged into a valve sheet sealing cavity 222 and a valve seat sealing cavity 2382 to form an outlet channel. A series channel 2388 and a series hole 2389 are set in one of the middle of the channel valve membrane assembly 223 and the channel valve hole assembly 2383, and the two middle channel valve hole assemblies 2383 form a series channel.

[0085] like Fig.29 As shown in FIG. 1 , the fluid channel valve seat 23 further includes a channel valve seat convex edge 237 arranged at the edge to form a concave channel valve plate cavity 238 .

[0086] like Figures 23 to 33 The diaphragm pump with a standardized fluid channel valve shown in the figure comprises a cover plate 1, a fluid channel model 2, a diaphragm seat 3, and a driving mechanism 4. The cover plate 1 is provided with a fluid inlet 11 and a fluid outlet 12. The fluid channel model 2 comprises a one-way valve seat 21 which is fluid-adapted and connected to and fixed on the cover plate 1, a fluid channel valve seat 23 which is fluid-adapted and connected to and fixed on the diaphragm seat, and a fluid channel valve plate 22 which is arranged between the one-way valve seat 21 and the fluid channel valve seat 23 for sealing and guiding; the fluid channel valve seat 23 comprises a channel valve plate cavity 238 which is surrounded by an inner recess, and the fluid channel valve plate 22 is adapted to be sealed and installed and fixed in the channel valve plate cavity 238 to form a valve cavity.

[0087] like Fig.23 and Fig. 27As shown in the figure, the fluid channel valve plate 22 is configured to have a plurality of valve plate sealing cavities 222 surrounded by a channel valve plate convex edge 221, the valve plate sealing cavity 222 includes a plurality of channel valve membrane assemblies 223 of the same size, and a channel valve membrane 224 is arranged at the center of each channel valve membrane assembly 223; a plurality of valve seat sealing cavities 2382 surrounded by a channel valve seat concave edge 2381 are arranged in the channel valve plate cavity 238, the valve seat sealing cavity 2382 includes a plurality of channel valve hole assemblies 2383 of the same size, and a channel valve hole 2384 is arranged in each channel valve hole assembly 2383; the channel valve membrane assembly 223 is adapted to the channel valve hole assembly 2383 in one-to-one correspondence in size and shape. Each channel valve membrane 224 is standardized and set at the center of the channel valve membrane assembly 223. Each channel valve hole 2384 is standardized as the fluid outlet channel valve hole 2384a is set at the center of the channel valve hole assembly 2383, and the fluid inlet channel valve hole 2384b is set at the edge of the channel valve hole assembly 2383. The channel valve membrane 224 standardized at the center corresponds to the fluid outlet channel valve hole 2384a at the center, and the fluid inlet channel valve hole 2384b standardized at the edge avoids the channel valve membrane 224.

[0088] The present invention also discloses a standardized manufacturing method for interchangeable series-parallel pump fluid channel valves, which divides the fluid channel valve cavity into a plurality of universal connecting structures of the same size and shape, and realizes the functional design of the diaphragm pump by standardizing and replacing various fixed models on the fluid channel, thereby simplifying the design method of the diaphragm pump fluid channel. Technical personnel in the field are well aware that the current micro-diaphragm pump is already very mature in terms of drive mechanism and outlet design, and the difficulty lies in the control of the fluid channel valve in flow control to achieve more and more sophisticated instruments and daily necessities. Therefore, the modularized standardized manufacturing method is more suitable for product upgrades and fine-tuning, and the specific manufacturing method steps are as follows:

[0089] a. The entire fluid channel valve cavity is divided into a plurality of regions of the same size, each region is made into a single valve channel structure of the same size;

[0090] b. Make a valve diaphragm corresponding to the size of the valve cavity of the entire fluid channel, divide the valve diaphragm into areas corresponding to each single valve channel of the same size, and make a separate one-way valve structure in each diaphragm area of ​​the same size in the valve diaphragm, standardize and make a circular valve in the center, and make a relative T-shaped

[0091] c. The valve cavity is divided into valve seat areas of the same size, each corresponding single valve seat area is a corresponding single valve diaphragm of the same size, and each valve seat area of ​​the same size is made into an outlet valve hole or an inlet valve hole, and when making the outlet valve hole, it is uniformly and standardizedly set at the center of the valve seat area. Corresponding to a separate one-way valve plate structure made in the center of each diaphragm area of ​​the same size, when making the inlet valve hole, it is uniformly and standardizedly set at the edge outside the center of the valve seat area;

[0092] d. The valve seat and the edge of the valve diaphragm are sealed to form a valve cavity.

[0093] like Fig. 20 , Fig.21 and Fig. 22 The diaphragm pump of the fluid channel valve seat shown in the figure comprises a cover plate 1, a fluid channel model 2, a diaphragm seat 3, and a driving mechanism 4. The cover plate 1 is provided with a fluid inlet 11 and a fluid outlet 12. The fluid channel model 2 is installed and arranged between the cover plate 1 and the diaphragm seat 3. The driving mechanism is drivingly connected to the diaphragm seat and is used to drive the movement of the diaphragm 31 of the diaphragm seat 3. The fluid channel model 2 comprises a one-way valve seat 21 which is fluid-adapted and connected to the cover plate 1, a fluid channel valve seat 23 which is fluid-adapted and connected to the diaphragm seat, and a fluid channel valve sheet 22 which is arranged between the one-way valve seat 21 and the fluid channel valve seat 23 for sealing and guiding.

[0094] The fluid channel valve seat 23 includes a bowl-shaped groove 231 which is fluidically connected to the diaphragm 31 on the diaphragm seat 3, and each diaphragm bag 311 of the diaphragm 31 is adapted to a bowl-shaped groove 231. The bowl-shaped groove 231 is provided with a second inlet through hole 2311 and a second outlet through hole 2312 of the fluid channel for fluid inlet and outlet. Fig.21 and Fig. 22 As shown, the second inlet through hole 2311 and the second outlet through hole 2312 are respectively arranged on the arc-shaped partial surfaces of the side wall at different distances from the center of the bottom of the bowl-shaped groove 231, and the second outlet through hole 2312 is arranged on the side wall of the bowl-shaped groove 231 closer to the edge of the bowl-shaped groove 231 than the second inlet through hole 2311. It is more conducive to squeezing out the fluid when the fluid is discharged, and it is also more conducive to the suction of the fluid when the fluid enters the diaphragm bag 311. The second inlet through hole 2311 and the second outlet through hole 2312 form a certain angle R with the center point of the circle of the bowl-shaped groove 231, wherein the angle R is an obtuse angle. The angle R is between 120 degrees and 160 degrees, and the optimal value is 120 degrees. When the parallel fluid channel structure is used, it is generally 120 degrees.

[0095] like Fig. 22 As shown in , when there are two bowl-shaped grooves 231 side by side, the second outlet through hole 2312 is arranged at the center connection of the bowl-shaped grooves 231, and the second inlet through hole 2311 is arranged outside the center of the same side of the two bowl-shaped grooves 231, and the angle R is 120 degrees.

[0096] like Fig.21 and Fig. 22 In the embodiment, a fluid guide groove 2314 is arranged around the second inlet through hole 2311 and the second outlet through hole 2312, and a channel is formed at the center of the bowl-shaped groove 231 with the fluid guide groove 2314. The fluid guide groove 2314 is arranged to form a circular bottom groove 2315 at the center of the bottom of the bowl-shaped groove 231. A convex edge 2313 is arranged at the edge of the bowl-shaped groove 231, which is adapted to seal with the edge of the diaphragm bag 311 of the diaphragm 31 of the diaphragm seat 3.

[0097] like Fig.23 and 24 The parallel fluid channel valve plate structure shown includes a plurality of valve plate sealing cavities 222 surrounded by channel valve plate convex edges 221, the valve plate sealing cavities 222 contain a plurality of channel valve membrane assemblies 223 of the same size and shape, and a channel valve membrane 224 is arranged at the center of the channel valve membrane assembly 223.

[0098] The adjacent channel valve membrane components 223 in the middle are surrounded by the channel valve plate convex edge 221 to form a fluid outlet channel, and the peripheral channel valve membrane components 223b are surrounded by the channel valve plate convex edge 221 to form a fluid inlet channel.

[0099] like Fig.23 In the parallel structure, the channel valve membrane assembly 223 is set as four of the same size and shape, and a channel valve membrane 224 is set in the middle of each channel valve membrane assembly 223. The two central channel valve membrane assemblies 223 are surrounded by the channel valve sheet convex edge 221 to form a fluid outlet channel, and the two outer channel valve membrane assemblies 223 are surrounded by the channel valve sheet convex edge 221 to form a fluid inlet channel. The four channel valve membrane assemblies 223 of the same size and shape are set as a side-by-side square hollow structure, and the circular channel valve membrane 224 is hung at the center of the channel valve membrane assembly 223 of the square hollow structure by two end feet of two identical T-shaped ribs 225.

[0100] like Figure 4 , Figure 8 , Fig.23 and Fig.24The diaphragm pump with a parallel fluid channel valve plate structure shown in the figure comprises a cover plate 1, a fluid channel model 2, a diaphragm seat 3, and a driving mechanism 4. The cover plate 1 is provided with a fluid inlet 11 and a fluid outlet 12. The fluid channel model 2 comprises a one-way valve seat 21 that is fluid-adapted and connected to the cover plate 1, a fluid channel valve seat 23 that is fluid-adapted and connected to the diaphragm seat, and a fluid channel valve plate 22 that is provided between the one-way valve seat 21 and the fluid channel valve seat 23 for sealing and guiding. The fluid channel valve plate 22 comprises a plurality of valve plate sealing cavities 222 surrounded by a channel valve plate convex edge 221. The valve plate sealing cavity 222 comprises a plurality of channel valve membrane assemblies 223 of the same size and shape. A channel valve membrane 224 is provided at the center of each channel valve membrane assembly 223. The plurality of adjacent channel valve membrane assemblies 223 in the middle are surrounded by the channel valve plate convex edge 221 to form a fluid outlet channel, and the plurality of channel valve membrane assemblies 223 on the periphery are surrounded by the channel valve plate convex edge 221 to form a fluid inlet channel. The channel valve membrane assembly 223 is connected to form four of the same size and shape, and a channel valve membrane 224 is arranged in the middle of each channel valve membrane assembly 223. The two central channel valve membrane assemblies 223 are surrounded by the channel valve sheet convex edge 221 to form a fluid outlet channel, and the two outer channel valve membrane assemblies 223 are surrounded by the channel valve sheet convex edge 221 to form a fluid inlet channel.

[0101] Four channel valve membrane assemblies 223 of the same size and shape are arranged in a square hollow structure, and the circular channel valve membrane 224 is hung at the center of the channel valve membrane assembly 223 of the square hollow structure by two end feet of two identical T-shaped ribs 225. The parallel fluid channel valve sheet is an elastic hollow rubber sheet.

[0102] like Fig.25 and Fig.26 The serial fluid channel valve plate structure shown includes a plurality of valve plate sealing cavities 222 surrounded by channel valve plate convex edges 221 , and the valve plate sealing cavities 222 contain a plurality of channel valve membrane assemblies 223 of the same size and shape.

[0103] Among them, several of the intermediate channel valve membrane assemblies 223 are set as a whole valve membrane structure as a series channel valve membrane assembly 223c, and the middle part of the series channel valve membrane assembly 223c is divided into a sealed area by the dividing valve sheet convex edge 221b to form a series channel, and the other divided part and the outer adjacent channel valve membrane assembly 223 form a fluid outlet channel.

[0104] The dividing valve plate convex edge 221b is divided into two equal halves in the middle of the series channel valve membrane assembly 223c.

[0105] Among the plurality of channel valve membrane assemblies 223 , except for the series-connected channel valve membrane assembly 223 c , a channel valve membrane 224 is disposed at the exact center of all the other channel valve membrane assemblies 223 .

[0106] The channel valve membrane assembly 223 is connected to form four of the same size and shape. The middle channel valve membrane assembly 223 is selected as the series channel valve membrane assembly 223c, the outer channel valve membrane assembly 223 close to the series channel valve membrane assembly 223c is the outlet channel, and the other outer channel valve membrane assembly 223 is the inlet channel, forming a serial fluid channel.

[0107] The serial fluid channel valve sheet is an elastic rubber sheet. Among the four channel valve membrane assemblies 223 of the same size and shape, the serial channel valve membrane assembly 223c is configured as a whole rubber sheet structure, and the other channel valve membrane assemblies 223 are configured as side-by-side square hollow structures. The circular channel valve membrane 224 is relatively hung at the center of the channel valve membrane assembly 223 of the square hollow structure through the two end feet of two identical T-shaped ribs 225.

[0108] like Figure 4 , Figure 7 , Fig.25 and Fig.26 The diaphragm pump with a serial fluid channel valve plate structure shown in the figure comprises a cover plate 1, a fluid channel model 2, a diaphragm seat 3, and a driving mechanism 4. The cover plate 1 is provided with a fluid inlet 11 and a fluid outlet 12. The fluid channel model 2 comprises a one-way valve seat 21 which is fluid-adapted and connected to the cover plate 1, a fluid channel valve seat 23 which is fluid-adapted and connected to the diaphragm seat, and a fluid channel valve plate 22 which is arranged between the one-way valve seat 21 and the fluid channel valve seat 23 for sealing and guiding. The fluid channel valve plate 22 comprises a plurality of valve plate sealing cavities 222 surrounded by a channel valve plate convex edge 221, and the valve plate sealing cavity 222 comprises a plurality of channel valve membrane assemblies 223 of the same size and shape.

[0109] like Fig.25 and Fig.26As shown, several of the intermediate channel valve membrane assemblies 223 are set as a whole valve membrane structure as a series channel valve membrane assembly 223c, and the middle of the series channel valve membrane assembly 223c is divided into a sealed area by the dividing valve sheet convex edge 221b to form a series channel, and the other divided part and the outer adjacent channel valve membrane assembly 223 form a fluid outlet channel. The dividing valve sheet convex edge 221b divides the middle of the series channel valve membrane assembly 223c into two equal halves. Among the several channel valve membrane assemblies 223, except for the series channel valve membrane assembly 223c, the channel valve membrane 224 is set at the center of all the other channel valve membrane assemblies 223. The channel valve membrane assembly 223 is set as four of the same size and shape. The middle channel valve membrane assembly 223 is selected as the series channel valve membrane assembly 223c, the other middle channel valve membrane assembly 223d is the series outlet channel, the peripheral channel valve membrane assembly 223b close to the series channel valve membrane assembly 223c is the outlet channel, and the other peripheral channel valve membrane assembly 223 is the inlet channel, forming a series fluid channel. Fig.26 and Fig.31 As shown, the serial fluid channel valve sheet is an elastic rubber sheet. Among the four channel valve membrane assemblies 223 of the same size and shape, the serial channel valve membrane assembly 223c is configured as a whole rubber sheet structure, and the other channel valve membrane assemblies 223 are configured as side-by-side square hollow structures. The circular channel valve membrane 224 is relatively hung at the center of the channel valve membrane assembly 223 of the square hollow structure through the two end feet of two identical T-shaped ribs 225.

[0110] The above is one embodiment of the present invention. In addition, it should be noted that any equivalent or simple changes made based on the structure, features and principles described in this patent concept are included in the protection scope of this patent.

Claims

1. A standardized fluid channel valve that can be interchangeably connected in series and parallel, comprising a fluid channel valve disc (22) and a fluid channel valve seat (23), wherein the fluid channel valve seat (23) comprises a channel valve disc cavity (238) surrounded by an inner concave portion, and the fluid channel valve disc (22) is adapted to be sealed and fixed in the channel valve disc cavity (238) to form a valve cavity; characterized in that: The fluid channel valve plate (22) comprises a plurality of valve plate sealing cavities (222) surrounded by a channel valve plate convex edge (221), wherein the valve plate sealing cavity (222) comprises a plurality of channel valve membrane assemblies (223) of the same size and shape, wherein a channel valve membrane (224) is arranged at the center of the channel valve membrane assembly (223); the channel valve plate cavity (238) comprises a plurality of valve seat sealing cavities (2382) surrounded by a channel valve seat concave edge (2381), wherein the valve seat sealing cavity (2382) comprises a plurality of channel valve hole assemblies (2383), wherein each of the channel valve hole assemblies (2383) is arranged with a channel valve hole (2384); the channel valve membrane assembly (223) and the channel valve hole assembly (2383) are adapted in size and shape in a one-to-one correspondence; Each channel valve membrane (224) is standardized and arranged at the center of the channel valve membrane assembly (223); each channel valve hole (2384) is standardized such that the fluid outlet channel valve hole (2384a) is arranged at the center of the channel valve hole assembly (2383) and the fluid inlet channel valve hole (2384b) is arranged at the edge of the channel valve hole assembly (2383); the channel valve membrane (224) standardized and arranged at the center corresponds to the fluid outlet channel valve hole (2384a) at the center, and the fluid inlet channel valve hole (2384b) standardized and arranged at the edge avoids the channel valve membrane (224); When the fluid channel valve adopts parallel channels, a plurality of adjacent channel valve membrane components (223) in the middle are surrounded by the channel valve plate convex edge (221) to form a fluid outlet channel, and a plurality of channel valve membrane components (223b) on the periphery are surrounded by the channel valve plate convex edge (221) to form a fluid inlet channel; When the fluid channel valve adopts a series channel, several of the intermediate channel valve membrane assemblies (223) are set as a whole valve membrane structure as a series channel valve membrane assembly (223c), and the middle of the series channel valve membrane assembly (223c) is divided by a dividing valve sheet convex edge (221b), one part becomes a sealing area to form a series channel, and the other divided part and the outer adjacent channel valve membrane assembly (223) form a fluid outlet channel; the dividing valve sheet convex edge (221b) divides the middle of the series channel valve membrane assembly (223c) into two equal halves; among the several channel valve membrane assemblies (223), except for the series channel valve membrane assembly (223c), a channel valve membrane (224) is set at the center of all other channel valve membrane assemblies (223).

2. The interchangeable serial-parallel standardized fluid channel valve according to claim 1, characterized in that: The channel valve membrane (224) arranged at the center of the channel valve membrane assembly (223) is relatively hung at the center of the through-hole-shaped channel valve membrane assembly (223) through two identical T-shaped ribs (225). The channel valve membrane (224) is arranged as a circular sheet membrane facing the circular fluid outlet channel valve hole (2384a) arranged in a standardized manner at the center of the channel valve hole assembly (2383), and the fluid inlet channel valve hole (2384b) corresponds to the through-hole (226) outside the channel valve membrane (224) and the T-shaped rib (225).

3. The interchangeable serial-parallel standardized fluid channel valve according to claim 2, characterized in that: A valve membrane convex edge (2241) is arranged around the channel valve membrane (224) to seal against the valve hole (2384a) of the fluid outlet channel.

4. The interchangeable serial-parallel standardized fluid channel valve according to claim 1, characterized in that: When the channel valve membrane assembly (223) and the channel valve hole assembly (2383) form a fluid channel with the fluid outlet channel valve hole (2384a) and the corresponding channel valve membrane (224), they are merged into a valve plate sealing cavity (222) and a valve seat sealing cavity (2382) to form an outlet channel.

5. The interchangeable serial-parallel standardized fluid channel valve according to claim 1, characterized in that: One of the groups between the channel valve membrane assembly (223) and the channel valve hole assembly (2383) is provided with a series channel (2388) and a series hole (2389), so that the two middle channel valve hole assemblies (2383) form a series channel.

6. A diaphragm pump with interchangeable series-parallel standardized fluid channel valves, comprising a cover plate (1), a fluid channel model (2), a diaphragm seat (3) and a driving mechanism (4), wherein the cover plate (1) is provided with a fluid inlet (11) and a fluid outlet (12), the fluid channel model (2) comprises a one-way valve seat (21) which is fluid-adaptive and connected to and fixed on the cover plate (1), a fluid channel valve seat (23) which is fluid-adaptive and connected to and fixed on the diaphragm seat, and a fluid channel valve plate (22) which is arranged between the one-way valve seat (21) and the fluid channel valve seat (23) for sealing and guiding; the fluid channel valve seat (23) comprises a channel valve plate cavity (238) surrounded by an inner recess, and the fluid channel valve plate (22) is adapted to be sealingly installed and fixed in the channel valve plate cavity (238) to form a valve cavity; It is characterized in that The fluid channel valve plate (22) comprises a plurality of valve plate sealing cavities (222) surrounded by a channel valve plate convex edge (221), wherein the valve plate sealing cavity (222) comprises a plurality of channel valve membrane assemblies (223) of the same size and shape, wherein a channel valve membrane (224) is arranged at the center of the channel valve membrane assembly (223); the channel valve plate cavity (238) comprises a plurality of valve seat sealing cavities (2382) surrounded by a channel valve seat concave edge (2381), wherein the valve seat sealing cavity (2382) comprises a plurality of channel valve hole assemblies (2383), wherein each of the channel valve hole assemblies (2383) is arranged with a channel valve hole (2384); the channel valve membrane assembly (223) and the channel valve hole assembly (2383) are adapted in size and shape in a one-to-one correspondence; Each channel valve membrane (224) is standardized and arranged at the center of the channel valve membrane assembly (223); each channel valve hole (2384) is standardized as a fluid outlet channel valve hole (2384a) arranged at the center of the channel valve hole assembly (2383), and a fluid inlet channel valve hole (2384b) is arranged at the edge of the channel valve hole assembly (2383); the channel valve membrane (224) standardized and arranged at the center corresponds to the fluid outlet channel valve hole (2384a) at the center, and the fluid inlet channel valve hole (2384b) standardized at the edge avoids the channel valve membrane (224); When the fluid channel valve adopts parallel channels, a plurality of adjacent channel valve membrane components (223) in the middle are surrounded by the channel valve plate convex edge (221) to form a fluid outlet channel, and a plurality of channel valve membrane components (223b) on the periphery are surrounded by the channel valve plate convex edge (221) to form a fluid inlet channel; When the fluid channel valve adopts a series channel, several of the intermediate channel valve membrane assemblies (223) are set as a whole valve membrane structure as a series channel valve membrane assembly (223c), and the middle of the series channel valve membrane assembly (223c) is divided by a dividing valve sheet convex edge (221b), one part becomes a sealing area to form a series channel, and the other divided part and the outer adjacent channel valve membrane assembly (223) form a fluid outlet channel; the dividing valve sheet convex edge (221b) divides the middle of the series channel valve membrane assembly (223c) into two equal halves; among the several channel valve membrane assemblies (223), except for the series channel valve membrane assembly (223c), a channel valve membrane (224) is set at the center of all other channel valve membrane assemblies (223).

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