Drip-proof diaphragm pump

Abstract

The invention discloses a drip-proof diaphragm pump which comprises a reset part, a deformable flow control element, a pressurizing part, a pump head part and a transfer seat, the pump head part and the pressurizing part are installed on the two opposite sides of the transfer seat respectively, a fluid inlet of the pump head part is communicated with a first channel of the transfer seat, and a fluid outlet of the pump head part is communicated with a second channel of the transfer seat. The first flow channel of the pump head part is communicated with the second channel of the transfer seat, the balance groove of the transfer seat is sealed by the flow control element, and the whole circumferential direction of the flow control element is clamped by the pump head part and the transfer seat; the reset part is arranged in the balance groove of the transfer base in a deformable mode in the mode that the two opposite ends abut against the flow control element and the transfer base respectively, and all the peripheral through holes of the pressurization part are constructed to be capable of communicating all the pressurization cavities of the pressurization part with the distribution groove of the transfer base. And each group of middle through holes of the pressurizing part is constructed into a second channel capable of communicating each pressurizing cavity with the transfer seat.

Description

Technical Field

[0001] The invention relates to the technical field of pumps, and in particular to an anti-drip diaphragm pump. Background Art

[0002] A diaphragm pump is a device widely used in household appliances and medical equipment for pumping gas or liquid. It has a fluid inlet and a fluid outlet. When working, a continuous negative pressure is generated at the fluid inlet of the pump to suck the gas or liquid into the diaphragm pump and discharge it from the fluid outlet of the diaphragm pump, thereby changing the position of the gas or liquid. Due to the particularity of gas or liquid, the diaphragm pump of the prior art is prone to the problem of dripping of the pumped gas or liquid. Summary of the invention

[0003] An object of the present invention is to provide a drip-proof diaphragm pump, wherein the drip-proof diaphragm pump has good sealing performance and can effectively solve the problem of fluid inlet dripping at the pump head.

[0004] An object of the present invention is to provide a drip-proof diaphragm pump, wherein the drip-proof diaphragm pump can stably pump out fluid.

[0005] One object of the present invention is to provide a drip-proof diaphragm pump, wherein when the drip-proof diaphragm pump is not working, the drip-proof diaphragm pump can prevent a gap from being generated between the flow control element of the diaphragm part and the intermediate transfer seat, thereby avoiding the fluid from entering the balancing groove of the intermediate transfer seat, so as to effectively solve the fluid inlet dripping problem of the pump head.

[0006] One object of the present invention is to provide a drip-proof diaphragm pump, wherein the entire circumferential direction of the flow control element of the diaphragm part is clamped between the pump head and the intermediate transfer seat, so that when the drip-proof diaphragm pump is not working, the drip-proof diaphragm pump can prevent the generation of a gap between the flow control element of the diaphragm part and the intermediate transfer seat, thereby avoiding the fluid from entering the balancing groove of the intermediate transfer seat, so as to effectively solve the problem of fluid inlet dripping of the pump head.

[0007] One object of the present invention is to provide a drip-proof diaphragm pump, wherein during the operation of the drip-proof diaphragm pump, the balancing tank below the flow control element is a negative pressure environment, so that the flow control element is maintained in a deformed state and the second flow channel and the fluid outlet of the pump head are allowed to be connected at all times, so that the drip-proof diaphragm pump can stably pump out the fluid.

[0008] One object of the present invention is to provide a drip-proof diaphragm pump, wherein the bottom of the flow channel molding ring of the pump head does not need to participate in forming the pump head perforation of the pump head, so that the bottom of the flow channel molding ring can press the edge of the flow control element toward the intermediate transfer seat in the entire circumferential direction of the flow control element, so that the entire circumferential direction of the flow control element is clamped by the pump head and the intermediate transfer seat, so that the drip-proof diaphragm pump can prevent the formation of a gap between the flow control element and the intermediate transfer seat.

[0009] According to one aspect of the present invention, there is provided a drip-proof diaphragm pump, which comprises a reset portion, a diaphragm portion, a pressurizing portion, a pump head and a transfer seat, wherein the diaphragm portion comprises a deformable flow control element, wherein the pressurizing portion comprises a plurality of groups of middle through holes, a plurality of groups of peripheral through holes and a plurality of pressurizing chambers with variable spatial sizes, wherein the pump head comprises a fluid inlet, a fluid outlet, a first flow channel, a second flow channel and a pump head through hole connecting the first flow channel and the second flow channel, wherein the transfer seat comprises a distribution groove, a balancing groove, a first channel, a second channel and a third channel connecting the distribution groove and the balancing groove, wherein the pump head and the pressurizing portion are respectively installed on opposite sides of the transfer seat, and the pump head has a plurality of The fluid inlet is connected to the first channel of the transfer seat, the first flow channel of the pump head is connected to the second channel of the transfer seat, the flow control element closes the top opening of the balance groove of the transfer seat, and the entire circumferential direction of the flow control element is clamped by the pump head and the transfer seat, the reset part is deformably arranged in the balance groove of the transfer seat in a manner that the two opposite ends respectively abut against the flow control element and the transfer seat, each of the peripheral through holes of the boosting part is constructed to be able to connect each of the boosting chambers and the distribution groove of the transfer seat, and each group of the middle through holes of the boosting part is constructed to be able to connect each of the boosting chambers and the second channel of the transfer seat.

[0010] According to one embodiment of the present invention, the pump head includes a pump head and a flow channel molding ring, the fluid inlet and the fluid outlet are formed in the pump head, the pump head has a pump head groove and an outlet nozzle located in the pump head groove, the flow channel molding ring is arranged in the pump head groove of the pump head in a manner of being sleeved on the outlet nozzle, so that the pump head groove of the pump head is separated by the flow channel molding ring into the first flow channel and the second flow channel, wherein the pump head perforation is formed between the pump head and the flow channel molding ring, and the entire circumferential direction of the flow control element is clamped between the bottom of the flow channel molding ring and the intermediate transfer seat.

[0011] According to one embodiment of the present invention, the pump head has a notch, and in the height direction, the position of the notch of the pump head is opposite to the position of the flow channel molding ring, so that the notch of the pump head forms the pump head through hole of the pump head portion between the pump head and the flow channel molding ring.

[0012] According to one embodiment of the present invention, the top of the flow channel molding ring has a notch, and in the height direction, the position of the notch of the flow channel molding ring is opposite to the position of the pump head, so that the pump head through hole of the pump head portion is formed between the pump head and the flow channel molding ring by the notch of the flow channel molding ring.

[0013] According to an embodiment of the present invention, the flow channel molding ring has a through hole, and the through hole of the flow channel molding ring forms the pump head through hole of the pump head.

[0014] According to one embodiment of the present invention, the pump head has a limiting arm, the limiting arm is located in the pump head groove of the pump head, and the limiting arm abuts against the outer wall of the flow channel molding ring so that the flow channel molding ring is prevented from moving by the limiting arm.

[0015] According to one embodiment of the present invention, the pump head has a limiting arm, the limiting arm is located in the pump head groove of the pump head, and the limiting arm abuts against the outer wall of the flow channel molding ring so that the flow channel molding ring is prevented from moving by the limiting arm.

[0016] According to one embodiment of the present invention, the pump head has a limiting arm, the limiting arm is located in the pump head groove of the pump head, and the limiting arm abuts against the outer wall of the flow channel molding ring so that the flow channel molding ring is prevented from moving by the limiting arm.

[0017] According to one embodiment of the present invention, the anti-drip diaphragm pump includes a sealing gasket, which has a first pad body perforation and a plurality of second pad body perforations, the central through hole of the pressurizing portion and the second channel of the intermediate transfer seat are connected via the first pad body perforation of the sealing gasket, and the peripheral through holes of the pressurizing portion and the distribution groove of the intermediate transfer seat are connected via the second pad body perforations of the sealing gasket.

[0018] According to one embodiment of the present invention, the anti-drip diaphragm pump includes an outlet check valve and a plurality of inlet check valves, wherein the outlet check valve is arranged above the boosting part, wherein the outlet check valve opens the middle through hole of the boosting part by deforming upward so that the middle through hole of the boosting part and the second channel of the intermediate transfer seat are connected, and the inlet check valve is arranged below the boosting part, wherein the inlet check valve opens the peripheral through holes of the boosting part by deforming downward so that the boosting chamber of the boosting part and the distribution groove of the intermediate transfer seat are connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram from one perspective of a drip-proof diaphragm pump according to a preferred embodiment of the present invention.

[0020] Figure 2 It is a three-dimensional schematic diagram of the anti-drip diaphragm pump from another perspective according to the above preferred embodiment of the present invention.

[0021] Figure 3 It is a schematic diagram of an exploded view of the anti-drip diaphragm pump according to the above preferred embodiment of the present invention from one perspective.

[0022] Figure 4 It is a schematic diagram of an exploded view of the anti-drip diaphragm pump according to the above preferred embodiment of the present invention from another perspective.

[0023] Figure 5 It is a schematic cross-sectional view of a local position of the anti-drip diaphragm pump according to the above preferred embodiment of the present invention.

[0024] Figure 6 It is a schematic cross-sectional view from a plane perspective of the anti-drip diaphragm pump according to the above preferred embodiment of the present invention.

[0025] Figure 7 yes Figure 6 A magnified view of the local location.

[0026] Figure 8 It is a three-dimensional schematic diagram of a local position of the anti-drip diaphragm pump according to the above preferred embodiment of the present invention.

[0027] Fig. 9 It is a schematic diagram of the above-mentioned partial position of the anti-drip diaphragm pump according to the above-mentioned preferred embodiment of the present invention.

[0028] Fig.10 It is a three-dimensional schematic diagram of another local position of the anti-drip diaphragm pump according to the above preferred embodiment of the present invention.

[0029] Fig.11 It is a three-dimensional schematic diagram of another local position of the anti-drip diaphragm pump according to the above preferred embodiment of the present invention.

[0030] Fig.12 It is a schematic diagram of an exploded view of the above-mentioned local position of the drip-proof diaphragm pump according to the above-mentioned preferred embodiment of the present invention from one perspective.

[0031] Fig.13 It is a schematic diagram of an exploded view of the above-mentioned local position of the drip-proof diaphragm pump according to the above-mentioned preferred embodiment of the present invention from another perspective.

[0032] Fig.14 It is a three-dimensional schematic diagram from another local position of the anti-drip diaphragm pump according to the above preferred embodiment of the present invention.

[0033] Fig.15 It is a three-dimensional schematic diagram of another viewing angle of the above-mentioned local position of the anti-drip diaphragm pump according to the above-mentioned preferred embodiment of the present invention.

[0034] Fig.16 It is a cross-sectional schematic diagram from a plane perspective of a modified example of the anti-drip diaphragm pump according to the above preferred embodiment of the present invention.

[0035] Fig.17 yes Fig.16 A magnified view of the local location.

[0036] Fig.18 It is a cross-sectional schematic diagram from a plane perspective of a modified example of the anti-drip diaphragm pump according to the above preferred embodiment of the present invention.

[0037] Fig.19 yes Fig.18 A magnified view of the local location.

[0038] Fig. 20 It is a cross-sectional schematic diagram from a plane perspective of a modified example of the anti-drip diaphragm pump according to the above preferred embodiment of the present invention.

[0039] Fig.21 yes Fig. 20 A magnified view of the local location. DETAILED DESCRIPTION

[0040] Before describing in detail any embodiment of the present invention, it should be understood that the present invention is not limited in its application to the construction and arrangement details of the components described below or illustrated in the following figures. The present invention can have other embodiments and can be practiced or carried out in various ways. In addition, it should be understood that the words and terms used here are for descriptive purposes and should not be considered restrictive. The use of "including" or "having" and its variations herein is intended to cover the items and their equivalents and additional items displayed below. Unless otherwise specified or limited, the terms "install", "connect", "support" and "couple" and their variations are widely used and cover direct installation and indirect installation, connection, support and connection. In addition, "connect" and "couple" are not limited to physical or mechanical connections or connections.

[0041] Furthermore, on the first aspect, in the disclosure of the present invention, the orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore the above terms cannot be understood as limitations on the present invention; on the second aspect, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" cannot be understood as a limitation on the quantity.

[0042] With reference to the accompanying drawings of the present invention Figures 1 to 15 A drip-proof diaphragm pump according to a preferred embodiment of the present invention will be disclosed and explained in the following description, wherein the drip-proof diaphragm pump includes a booster part 10, a transfer seat 20, a pump head 30, a diaphragm part 40 and a reset part 50.

[0043] Specifically, the boosting portion 10 has multiple groups of central through holes 11, multiple groups of peripheral through holes 12 and multiple boosting chambers 13 with variable space sizes, wherein each group of the central through holes 11 can selectively connect to each of the boosting chambers 13, and when a group of the central through holes 11 and one of the boosting chambers 13 are connected, as the space of the boosting chamber 13 becomes smaller, the fluid in the boosting chamber 13 can be discharged from the boosting portion 10 through the central through holes 11, wherein each group of the peripheral through holes 12 can selectively connect to each of the boosting chambers 13, and when a group of the peripheral through holes 12 and one of the boosting chambers 13 are connected, as the space of the boosting chamber 13 becomes larger, the fluid can enter the boosting chamber 13 through the group of the peripheral through holes 12.

[0044] More specifically, see Attachment Figures 1 to 6 , Fig.14 and Fig.15 The booster unit 10 includes a driving motor 14 , a mounting ring 15 , a swing frame 16 , a booster seat 17 , a diaphragm unit 18 and a base 19 .

[0045] The assembly ring 15 has an annular space 151 and an axial hole 152 connected to the annular space 151, wherein the drive motor 14 is mounted on the bottom of the assembly ring 15, and the drive shaft 141 of the drive motor 14 extends into the annular space 151 of the assembly ring 15 after passing through the axial hole 152 of the assembly ring 15. For example, the assembly ring 15 may have more than one screw through hole, and the end surface of the drive motor 14 may be provided with more than one threaded blind hole, and one end of the screw extends to the threaded blind hole of the drive motor 14 after passing through the screw through hole of the assembly ring 15, and the end of the screw and the drive motor 14 are screwed together, so that the drive motor 14 is mounted on the bottom of the assembly ring 15. Preferably, the diameter of the axial hole 152 of the assembly ring 15 is larger than the diameter of the drive shaft 141 of the drive motor 14, so that when the drive shaft 141 of the drive motor 14 rotates, the drive shaft 141 will not rub against the assembly ring 15.

[0046] The swing frame 16 is installed on the driving shaft 141 of the driving motor 14 in a manner of being accommodated in the annular space 151 of the mounting ring 15, and the swing frame 16 has a plurality of swing arms 161. When the driving shaft 141 of the driving motor 14 rotates, the swing frame 16 can swing in the annular space 151 of the mounting ring 15.

[0047] The booster seat 17 has a plurality of seat body through holes 171, and the booster seat 17 is installed on the top of the assembly ring 15. The seat body through holes 171 of the booster seat 17 are respectively connected to the annular space 151 of the assembly ring 15, and the positions of the seat body through holes 171 of the booster seat 17 correspond to the positions of the swing arms 161 of the swing frame 16.

[0048] The diaphragm unit 18 includes a diaphragm 181 and a plurality of leather cups 182 integrally formed on the diaphragm 181. The diaphragm 181 is clamped between the booster seat 17 and the base 19. Each of the leather cups 182 extends into the annular space 151 of the assembly ring 15 through each of the seat body through holes 171 of the booster seat 17, and the extension arms 1821 of each of the leather cups 182 are respectively installed on each of the swing arms 161 of the swing frame 16. For example, each of the swing arms 161 of the swing frame 16 has an insertion hole 1611, and the extension arms 1821 of each of the leather cups 182 are respectively inserted into the insertion holes 1611 of each of the swing arms 161 of the swing frame 16, so as to install the extension arms 1821 of the leather cups 182 on the swing arms 161 of the swing frame 16.

[0049] Each group of the middle through holes 11 and each group of the peripheral through holes 12 of the boosting part 10 are respectively formed on the base 19, and each of the boosting chambers 13 is formed by each of the leather cups 182 of the diaphragm unit 18, that is, one leather cup 182 is used to form one of the boosting chambers 13 of the boosting part 10. When the driving motor 14 drives each of the swing arms 161 of the swing frame 16 to swing, each of the swing arms 161 can respectively drive each of the leather cups 182 to deform and change the space size of each of the boosting chambers 13 of the boosting part 10.

[0050] In the attached Figures 1 to 15 In this specific example of the drip-proof diaphragm pump of the present invention, the booster seat 17 has three seat body through holes 171, and the three seat body through holes 171 are respectively connected to the annular space 151 of the assembly ring 15, and the diaphragm unit 18 includes three leather cups 182, and the three leather cups 182 extend into the annular space 151 of the assembly ring 15 through the respective seat body through holes 171 of the booster seat 17, and the extension arms 1821 of the three leather cups 182 are respectively installed on the three swing arms 161 of the swing frame 16, so that the three leather cups 182 of the diaphragm unit 18 form the three booster chambers 13 of the booster part 10.

[0051] In other words, in the Figures 1 to 15 In this specific example of the anti-drip diaphragm pump of the present invention, the number of the boosting chambers 13 of the boosting part 10 is three, which are a first boosting chamber 13a, a second boosting chamber 13b and a third boosting chamber 13c, and the first boosting chamber 13a, the second boosting chamber 13b and the third boosting chamber 13c are independent of each other. Accordingly, the number of the middle through holes 11 of the boosting part 10 is three groups, which are a first group of middle through holes 11a, a second group of middle through holes 11b and a third group of middle through holes 11c, and the number of the peripheral through holes 12 of the boosting part 10 is three. Groups, which are respectively a first group of peripheral through holes 12a, a second group of peripheral through holes 12b and a third group of peripheral through holes 12c, wherein the first group of central through holes 11a and the first group of peripheral through holes 12a can be connected to the first pressurization chamber 13a, respectively, the second group of central through holes 11b and the second group of peripheral through holes 12b can be connected to the second pressurization chamber 13b, respectively, the third group of central through holes 11c and the third group of peripheral through holes 12c can be connected to the third pressurization chamber 13c, respectively, so that when the drive motor 14 is working, the anti-drip diaphragm pump can continuously pump fluid.

[0052] It can be understood that, since the diaphragm 181 is clamped between the booster seat 17 and the base 19, the diaphragm 181 can prevent the anti-drip diaphragm pump from forming a gap between the booster seat 17 and the base 19, so as to avoid leakage of fluid into the booster chamber 13 of the booster part 10, thereby ensuring the sealing of the anti-drip diaphragm pump.

[0053] Reference Figure 3 , Figure 4 and Figure 6 The anti-drip diaphragm pump includes an outlet check valve 60, which is disposed above the boosting part 10. The outlet check valve 60 opens the middle through hole 11 of the boosting part 10 by deforming upward. That is, the outlet check valve 60 has an initial state and a deformed state. When the outlet check valve 60 is in the initial state, the outlet check valve 60 closes the middle through hole 11 of the boosting part 10. When the outlet check valve 60 is in the deformed state, the outlet check valve 60 opens the middle through hole 11 of the boosting part 10. By changing the pressure in the boost chamber 13 of the boost section 10, the outlet check valve 60 can be switched between an initial state and a deformed state, wherein when the pressure in the boost chamber 13 of the boost section 10 is relatively small, the outlet check valve 60 can be in an initial state to prevent the fluid from being discharged through the middle through hole 11 of the boost section 10, and when the pressure in the boost chamber 13 of the boost section 10 is relatively large, the outlet check valve 60 can be in a deformed state to allow the fluid to be discharged through the middle through hole 11 of the boost section 10.

[0054] Specifically, the base 19 of the boosting part 10 has a groove 191 and an assembly platform 192 located in the groove 191, each group of the middle through holes 11 of the boosting part 10 is connected to the groove 191 of the base 19, and each group of the middle through holes 11 is distributed around the assembly platform 192. The outlet check valve 60 includes a first assembly part 61 and a first valve plate part 62 extending outward from the first assembly part 61, the first assembly part 61 has an assembly groove 611, wherein the assembly platform 192 of the base 19 is inserted into the assembly groove 611 of the first assembly part 61 in a manner that the outlet check valve 60 is located in the groove 191 of the base 19, and the first valve plate part 62 covers each group of the middle through holes 11 of the boosting part 10, wherein the first valve plate part 62 is deformable so that the outlet check valve 60 can open the middle through holes 11 of the boosting part 10 by deforming upward. That is, when the first valve plate portion 62 of the outlet check valve 60 is not deformed, the middle through hole 11 of the pressurizing portion 10 is closed, and when the first valve plate portion 62 is deformed upward, the middle through hole 11 of the pressurizing portion 10 is opened.

[0055] Reference Figure 3 The outlet check valve 60 includes three separation ribs 63, which are arranged at intervals on the top of the first valve plate portion 62, and the separation ribs 63 extend from the first assembly portion 61 to the edge of the first valve plate portion 62, so as to separate the first valve plate portion 62 into three independent deformable regions 621, and each of the deformable regions 621 covers each group of the middle through holes 11 of the pressurizing portion 10. Since each of the deformable regions 621 of the first valve plate portion 62 is deformed independently, the opening and closing states of each group of the middle through holes 11 of the pressurizing portion 10 are also independent.

[0056] Specifically, the three deformable regions 621 of the first valve sheet part 62 of the outlet check valve 60 may be a first deformable region 621a, a second deformable region 621b and a third deformable region 621c, wherein the first deformable region 621a covers the first group of middle through holes 11a of the boosting part 10, and is used to control the opening and closing states of the first group of middle through holes 11a, the second deformable region 621b covers the second group of middle through holes 11b of the boosting part 10, and is used to control the opening and closing states of the second group of middle through holes 11b, and the third deformable region 621c covers the third group of middle through holes 11c of the boosting part 10, and is used to control the opening and closing states of the third group of middle through holes 11c.

[0057] In addition, since the dividing ribs 63 of the outlet one-way valve 60 are arranged at the top of the first valve plate part 62, the bottom of the first valve plate part 62 is flat and smooth. When the deformable area 621 of the first valve plate part 62 is not deformed, no gap will be generated between the bottom of the first valve plate part 62 and the inner wall of the base 19 for defining the groove 191, so as to ensure that the deformable area 621 of the first valve plate part 62 can reliably close the middle through hole 11 of the boost part 10.

[0058] In the attached Figures 1 to 15 In the specific example of the anti-drip diaphragm pump of the present invention shown, in order to ensure that each of the deformable areas 621 of the first valve plate portion 62 of the outlet one-way valve 60 can reliably close each of the middle through holes 111 of the pressurizing portion 10, the assembly platform 192 of the base 19 is configured as a triangular prism structure, and accordingly, the shape and size of the assembly groove 611 of the first assembly portion 61 of the outlet one-way valve 60 matches the shape and size of the assembly platform 192, so that in the outlet one-way valve 6 After being installed on the base 19, the outlet check valve 60 will not rotate relative to the base 19, so that it can be ensured that the position of the first deformable area 621a and the position of the first group of middle through holes 11a of the boosting part 10 always correspond to each other, that the position of the second deformable area 621b and the position of the second group of middle through holes 11b of the boosting part 10 always correspond to each other, and that the position of the third deformable area 621c and the position of the third group of middle through holes 11c of the boosting part 10 always correspond to each other.

[0059] Continue to refer to the attached Figure 3 , Figure 4 and Figure 6 The anti-drip diaphragm pump includes a plurality of inlet check valves 70, each of which is disposed below the base 19 of the pressurizing part 10, and the inlet check valve 70 opens the peripheral through hole 12 of the pressurizing part 10 by deforming downward. That is, the inlet check valve 70 has an initial state and a deformed state. When the inlet check valve 70 is in the initial state, the inlet check valve 70 closes the peripheral through hole 12 of the pressurizing part 10, and when the inlet check valve 70 is in the deformed state, the inlet check valve 70 opens the peripheral through hole 12 of the pressurizing part 10.

[0060] Specifically, the base 19 of the pressurizing part 10 has a plurality of assembly holes 193 extending from the bottom to the top of the base 19, and each assembly hole 193 is adjacent to each group of the peripheral through holes 12. For example, each assembly hole 193 of the base 19 extends from the bottom to the top to form a through hole. The inlet one-way valve 70 includes a second assembly part 71 and a second valve plate part 72 extending outward from the second assembly part 71, and the second assembly part 71 is assembled to the assembly hole 193 of the base 19. For example, the second assembly part 71 can be a column, which passes through the assembly hole 193 of the base 190 from bottom to top to assemble the second assembly part 71 to the assembly hole 193 of the base 19, and the second valve plate part 72 covers the peripheral through holes 12 of the pressurizing part 10, wherein the second valve plate part 72 is deformable so that the inlet one-way valve 70 can open the peripheral through holes 12 of the pressurizing part 10 by deforming downward. That is, when the second valve plate portion 72 of the inlet check valve 60 is not deformed, the peripheral through hole 12 of the pressurizing portion 10 is closed, and when the second valve plate portion 72 is deformed, the peripheral through hole 12 of the pressurizing portion 10 is opened. By changing the pressure in the pressurizing chamber 13 of the pressurizing portion 10, the inlet check valve 70 can be switched between an initial state and a deformed state, wherein when the pressure in the pressurizing chamber 13 of the pressurizing portion 10 is relatively low, the inlet check valve 70 can be in a deformed state, and fluid is allowed to enter the pressurizing chamber 13 through the peripheral through hole 12 of the pressurizing portion 10, and when the pressure in the pressurizing chamber 13 of the pressurizing portion 10 is relatively high, the inlet check valve 70 can be in an initial state, and fluid is prevented from entering the pressurizing chamber 13 through the peripheral through hole 12 of the pressurizing portion 10.

[0061] More specifically, the number of the inlet check valves 70 is three, which are a first inlet check valve 70a, a second inlet check valve 70b and a third inlet check valve 70c, wherein the first inlet check valve 70a is installed in an assembly hole 193 adjacent to the first group of peripheral through holes 12a, for controlling the opening and closing states of the first group of peripheral through holes 12a, the second inlet check valve 70b is installed in an assembly hole 193 adjacent to the second group of peripheral through holes 12b, for controlling the opening and closing states of the second group of peripheral through holes 12b, and the third inlet check valve 70c is installed in an assembly hole 193 adjacent to the third group of peripheral through holes 12c, for controlling the opening and closing states of the third group of peripheral through holes 12c.

[0062] Continue to refer to the attached Figures 1 to 15The transfer seat 20 has a distribution groove 21, a balancing groove 22, a first channel 23, a second channel 24 and a third channel 25 connecting the distribution groove 21 and the balancing groove 22. The pump head 30 has a fluid inlet 31, a fluid outlet 32, a first flow channel 33, a second flow channel 34 and a pump head through hole 35 connecting the first flow channel 33 and the second flow channel 34. The diaphragm part 40 includes a flow control element 41. The booster part 10 is installed on the bottom side of the transfer seat 20, and the pump head 30 is installed on the top side of the transfer seat 20, wherein the fluid inlet 31 of the pump head 30 is connected to the first channel 23 of the transfer seat 20, and the flow control element 41 is deformably clamped between the pump head 30 and the transfer seat 20 in a manner of closing the top opening of the balancing groove 22 of the transfer seat 20, and the reset part 50 abuts against the control element with its opposite ends respectively. The flow element 41 and the intermediate transfer seat 20 are deformably arranged in the balancing groove 22 of the intermediate transfer seat 20, and each group of the peripheral through holes 12 of the boosting part 30 is constructed to be able to connect the respective boosting chambers 13 of the boosting part 10 and the distribution groove 21 of the intermediate transfer seat 20, and each group of the middle through holes 11 of the boosting part 10 is constructed to be able to connect the respective boosting chambers 13 of the boosting part 10 and the second channel 24 of the intermediate transfer seat 20.

[0063] Preferably, the transfer seat 20 has a first limiting column 26, which protrudes toward the balancing groove 22, and the flow control element 41 has a second limiting column 411, which protrudes toward the balancing groove 22, and the position of the first limiting column 26 of the transfer seat 20 and the position of the second limiting column 411 of the flow control element 41 correspond in height direction. The reset part 50 can be a compression spring, the bottom of which is mounted on the first limiting column 26 of the transfer seat 20, and the top of which is mounted on the second limiting column 411 of the flow control element 41. In this way, the relative ends of the reset part 50 can reliably abut against the flow control element 41 and the transfer seat 20 to avoid the reset part 50 from being misplaced, tilted or deviated.

[0064] In the attached Figures 1 to 15In the specific example of the anti-drip diaphragm pump of the present invention shown, the entire circumferential direction of the flow control element 41 is clamped by the pump head 30 and the intermediate transfer seat 20. Since the pump head 30 is installed on the top side of the intermediate transfer seat 20, the relative positions of the pump head 30 and the intermediate transfer seat 20 remain unchanged. In this way, when the flow control element 41 is deformed, the anti-drip diaphragm pump can prevent the generation of a gap between the flow control element 41 and the intermediate transfer seat 20, thereby avoiding the connection between the second channel 24 of the intermediate transfer seat 20 and the balancing groove 22, so as to avoid the dripping problem of the anti-drip diaphragm pump at the fluid inlet 31 of the pump head 30.

[0065] Continue to refer to the attached Figure 7 The flow control element 41 includes a sealing portion 412, a peripheral portion 413 and a connecting portion 414. The cross-section of the connecting portion 414 is "U"-shaped, and its inner side is connected to the sealing portion 412, and its outer side is connected to the peripheral portion 413. The peripheral portion 413 of the flow control element 41 is clamped between the pump head 30 and the intermediate transfer seat 20, the connecting portion 414 protrudes toward the balancing groove 22 of the intermediate transfer seat 20, and the outer diameter of the sealing portion 412 is larger than the size of the fluid outlet 32 ​​of the pump head 30. In this way, when the anti-drip diaphragm pump is not working, the sealing portion 412 of the flow control element 41 remains in a position to seal the fluid outlet 32 ​​of the pump head 30 to prevent the fluid outlet 32 ​​of the pump head 30 from communicating with the second flow channel 34. When the anti-drip diaphragm pump is working, the connecting portion 414 of the flow control element 41 is deformed and the sealing portion 412 moves downward to allow the fluid outlet 32 ​​of the pump head 30 to communicate with the second flow channel 34. By setting the connecting portion 414 of the flow control element 41 in a "U"-shaped cross section, the downward moving distance of the sealing portion 412 can be increased. Preferably, the second limiting column 411 is formed on the sealing portion 412. Preferably, the second limiting column 411, the sealing portion 412, the peripheral portion 413 and the connecting portion 414 of the flow control element 41 are an integrated structure, which is integrally formed by injection molding.

[0066] In the attached Figures 1 to 15In this specific example of the anti-drip diaphragm pump of the present invention shown, the outlet one-way valve 60 makes each group of the middle through holes 11 of the boosting part 10 be constructed to be able to connect each of the boosting chambers 13 and the second channel 24 of the intermediate transfer seat 20, wherein when the first valve plate portion 62 of the outlet one-way valve 60 is not deformed and is in an initial state, the first valve plate portion 62 closes the middle through hole 11 of the boosting part 10, and at this time, the outlet one-way valve 60 prevents the boosting chamber 13 of the boosting part 10 and the second channel 24 of the intermediate transfer seat 20 from being connected, and accordingly, when the first valve plate portion 62 of the outlet one-way valve 60 is deformed upward and is in a deformed state, the first valve plate portion 62 opens the middle through hole 11 of the boosting part 10, and at this time, the outlet one-way valve 60 allows the boosting chamber 13 of the boosting part 10 and the second channel 24 of the intermediate transfer seat 20 to be connected. The inlet one-way valve 70 makes the peripheral through holes 12 of the boosting part 10 be constructed to be able to connect the various boosting chambers 13 and the distribution grooves 21 of the intermediate transfer seat 20, wherein when the second valve plate portion 72 of the inlet one-way valve 70 is not deformed and is in an initial state, the second valve plate portion 72 closes the peripheral through holes 12 of the boosting part 10, and at this time, the inlet one-way valve 70 prevents the boosting chambers 13 of the boosting part 10 and the distribution grooves 21 of the intermediate transfer seat 20 from being connected, and correspondingly, when the second valve plate portion 72 of the inlet one-way valve 70 is deformed downward and is in a deformed state, the second valve plate portion 72 opens the peripheral through holes 12 of the boosting part 10, and at this time, the inlet one-way valve 70 allows the boosting chambers 13 of the boosting part 10 and the distribution grooves 21 of the intermediate transfer seat 21 to be connected.

[0067] In the attached Figures 1 to 15In the specific example of the drip-proof diaphragm pump of the present invention shown, the fluid inlet 31 of the pump head 30 is connected to a water source (in other embodiments, the fluid inlet 31 of the pump head 30 may also be connected to an air source or other fluid source). In the process where the drive motor 14 drives the swing frame 16 to swing and causes the leather cup 182 of the diaphragm unit 18 to deform, when the space of the boosting chamber 13 of the boosting part 10 becomes larger, the water pressure causes the second valve plate portion 72 of the inlet one-way valve 70 to deform downward to open the peripheral through hole 12 of the boosting part 10. At this time, water enters the boosting chamber 13 of the boosting part 10 from the distribution groove 21 of the transfer seat 20 through the peripheral through hole 12 of the boosting part 10. When the space of the boosting chamber 13 of the boosting part 10 becomes smaller, on the one hand, the water in the boosting chamber 13 of the boosting part 10 restores the second valve plate portion 72 of the inlet one-way valve 70 to its initial state and closes the boosting chamber 13 of the boosting part 10. The peripheral through hole 12 is used to prevent the boosting chamber 13 of the boosting part 10 from being connected to the distribution groove 21 of the intermediate transfer seat 20. On the other hand, the water in the boosting chamber 13 of the boosting part 10 causes the deformable area 621 at the corresponding position of the first valve plate part 62 of the outlet one-way valve 60 to deform upward to open the middle through hole 11 of the boosting part 10. At this time, water enters the boosting chamber 13 of the boosting part 10 through the middle through hole 11 of the boosting part 10. The second channel 24 of the intermediate transfer seat 20 and the first flow channel 33, the pump head perforation 35 and the second flow channel 34 of the pump head 30, the water entering the first flow channel 33, the pump head perforation 35 and the second flow channel 34 of the pump head 30 causes the flow control element 41 and the reset portion 50 to deform downwards and allow the second flow channel 34 of the pump head 30 to communicate with the fluid outlet 32, at which time the water can be discharged through the fluid outlet 32 ​​of the pump head 30. When the drive motor 14 stops working, the reset portion 50 pushes the flow control element 41 upwards, so that the flow control element 41 prevents the second flow channel 34 of the pump head 30 from communicating with the fluid outlet 32, at which time the water cannot be discharged through the fluid outlet 32 ​​of the pump head 30.

[0068] It can be understood that, since the entire circumferential direction of the peripheral portion 413 of the flow control element 41 is clamped by the pump head 30 and the intermediate transfer seat 20, whether the drive motor 14 is in a working state or in a shutdown state, the anti-drip diaphragm pump can prevent the generation of a gap between the flow control element 41 and the intermediate transfer seat 20, thereby avoiding the connection between the second channel 24 of the intermediate transfer seat 20 and the balancing groove 22, so as to avoid the anti-drip diaphragm pump from dripping at the fluid inlet 31 of the pump head 30.

[0069] Reference Figures 11 to 13 , the distribution groove 21 of the transfer seat 20 is divided into a first distribution area 211 and a second distribution area 212, the first distribution area 211 and the second distribution area 212 are connected through two throats 213, wherein the first group of peripheral through holes 12a of the boosting part 10 and the third channel 25 are connected to the first distribution area 211 of the transfer seat 20, the second group of peripheral through holes 12b of the boosting part 10 and the first channel 23 of the transfer seat 20 are respectively connected to the second distribution area 212 of the transfer seat 20, and the sum of the flow rates of the two throats 213 of the transfer seat 20 is less than the flow rate of each through hole of the first group of peripheral through holes 12a of the boosting part 10 The sum of the flow rates, so that when the anti-drip diaphragm pump is working, the amount of water entering the first distribution area 211 through the two throats 213 of the intermediate transfer seat 20 is less than the amount of water entering the first boosting chamber 13a through the first group of peripheral through holes 12a of the boosting section 10. At this time, the water in the balance groove 22 of the intermediate transfer seat 20 will enter the first boosting chamber 13a through the first group of peripheral through holes 12a of the boosting section 10, so that the balance groove 22 of the intermediate transfer seat 20 forms a negative pressure environment, so that the flow control element 41 is maintained in a deformed state and the second flow channel 34 of the pump head 30 and the fluid outlet 32 ​​are allowed to be connected at all times, so that the anti-drip diaphragm pump can stably pump out the fluid.

[0070] Further, see Attachment Figure 3 , Figure 4 , Figure 6 and Figure 7 The diaphragm portion 40 includes a diaphragm 42, and the diaphragm 42 and the flow control element 41 are integrally formed. The diaphragm 42 has a first diaphragm through-hole 421 and a second diaphragm through-hole 422. The diaphragm 42 is clamped between the pump head 30 and the intermediate transfer seat 20 so that the diaphragm 42 prevents a gap from being generated between the pump head 30 and the intermediate transfer seat 20, wherein the first diaphragm through-hole 421 of the diaphragm 42 connects the first channel 23 of the intermediate transfer seat 20 and the fluid inlet 31 of the pump head 30, and the second diaphragm through-hole 422 of the diaphragm 42 connects the second channel 23 of the intermediate transfer seat 20 and the first flow channel 33 of the pump head 30.

[0071] In the attached Figures 1 to 15In this specific example of the drip-proof diaphragm pump of the present invention shown, the pump head 30 includes a pump head 36 and a flow channel molding ring 37, the fluid inlet 31 and the fluid outlet 32 ​​are formed in the pump head 36, and the pump head 36 has a pump head groove 361 and an outlet nozzle 362 located in the pump head groove 361, the flow channel molding ring 37 is arranged in the pump head groove 361 of the pump head 36 in a manner of being sleeved on the outlet nozzle 362, so that the pump head groove 361 of the pump head 36 is separated by the flow channel molding ring 37 into the first flow channel 33 and the second flow channel 34, and the pump head perforation 35 is formed between the pump head 36 and the flow channel molding ring 37. Since the pump head perforation 35 of the pump head 30 is formed between the pump head 36 and the flow channel molding ring 37, there is no need to set a groove at the bottom of the flow channel molding ring 37. In this way, the entire circumferential direction of the flow control element 41 of the diaphragm part 40 is clamped between the bottom of the flow channel molding ring 37 and the transfer seat 20, so that the anti-drip diaphragm pump prevents the generation of a gap between the flow control element 41 and the transfer seat 20, thereby avoiding the connection between the second channel 24 of the transfer seat 20 and the balancing groove 22, so as to avoid the drip-proof diaphragm pump from having a dripping problem at the fluid inlet 31 of the pump head 30.

[0072] Continue to refer to the attached Figures 1 to 15 In this specific example of the anti-drip diaphragm pump of the present invention, the pump head 36 has at least one notch 363. In the height direction, the position of the notch 363 of the pump head 36 is opposite to the position of the flow channel forming ring 37, so that the notch 363 of the pump head 36 forms the pump head through hole 35 of the pump head portion 30 between the pump head 36 and the flow channel forming ring 37. Optionally, in the attached Fig.16 and Fig.17 In another specific example of the anti-drip diaphragm pump of the present invention shown, the notch 363 is formed in the flow channel molding ring 37, and in the height direction, the position of the notch 363 formed in the flow channel molding ring 37 is opposite to the position of the pump head 36, so that the pump head through hole 35 of the pump head 30 is formed between the pump head 36 and the flow channel molding ring 37 by the notch 363. In other words, the bottom of the flow channel molding ring 37 does not need to participate in the formation of the pump head through hole 35 of the pump head 30, so that the flow channel molding ring 37 can press the entire circumferential direction of the flow control element 41 toward the intermediate transfer seat 20, so that the entire circumferential direction of the flow control element 41 is clamped by the flow channel molding ring 37 and the intermediate transfer seat 20.

[0073] Reference Figure 4 , Figure 8 and Fig. 9The pump head 36 has a limiting arm 364, and the limiting arm 364 is located in the pump head groove 361 of the pump head 36. The limiting arm 364 abuts against the outer wall of the flow channel molding ring 37 to prevent the flow channel molding ring 37 from moving, so that the pump head groove 361 of the pump head 36 is reliably separated into the first flow channel 33 and the second flow channel 34 by the flow channel molding ring 37, and ensures that the bottom of the flow channel molding ring 37 and the intermediate transfer seat 20 reliably clamp the flow control element 41 in the entire circumferential direction.

[0074] Reference Figure 6 The drip-proof diaphragm pump includes a sealing gasket 80, which has a plurality of first pad body perforations 81 and a second pad body perforation 82. The sealing gasket 80 is clamped between the base 19 and the intermediate transfer seat 20 so that the sealing gasket 80 prevents a gap from being generated between the base 19 and the intermediate transfer seat 20, wherein each of the first pad body perforations 81 of the sealing gasket 80 is connected to the distribution groove 21 of the intermediate transfer seat 20 and each of the peripheral through holes 12 of the boosting part 10, respectively, and the second pad body perforations 82 of the sealing gasket 80 are connected to the second channel 24 of the intermediate transfer seat 20 and the groove 191 of the base 19.

[0075] Attached Fig.18 and Fig.19 A modified example of the anti-drip diaphragm pump according to the present invention is shown, and the attached Figures 1 to 15 The anti-drip diaphragm pump shown is different in that Fig.12 and Fig.13 In the illustrated specific example of the drip-proof diaphragm pump, the pump head through hole 35 of the pump head 30 is formed by a through hole 371 formed in the flow channel forming ring 37 .

[0076] Attached Fig. 20 and Fig.21 A modified example of the anti-drip diaphragm pump according to the present invention is shown, and the attached Figures 1 to 15 The anti-drip diaphragm pump shown is different in that Fig.14 and Fig.15 In the specific example of the drip-proof diaphragm pump shown, the pump head 36 and the flow channel forming ring 37 of the pump head 30 are an integral structure.

[0077] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. Anti-drip diaphragm pump, characterized in that: The invention comprises a reset part, a diaphragm part, a pressurizing part, a pump head and a transfer seat, wherein the diaphragm part comprises a deformable flow control element, wherein the pressurizing part comprises a plurality of groups of middle through holes, a plurality of groups of peripheral through holes and a plurality of pressurizing chambers with variable space sizes, wherein the pump head comprises a fluid inlet, a fluid outlet, a first flow channel, a second flow channel and a pump head through hole connecting the first flow channel and the second flow channel, wherein the transfer seat comprises a distribution groove, a balancing groove, a first channel, a second channel and a third channel connecting the distribution groove and the balancing groove, wherein the pump head and the pressurizing part are respectively installed on opposite sides of the transfer seat, and the fluid inlet of the pump head and the transfer seat are The first channel is connected, the first flow channel of the pump head and the second channel of the transfer seat are connected, the flow control element closes the top opening of the balance groove of the transfer seat, and the entire circumferential direction of the flow control element is clamped by the pump head and the transfer seat, the reset part is deformably arranged in the balance groove of the transfer seat in a manner that the two opposite ends respectively abut against the flow control element and the transfer seat, each of the peripheral through holes of the boosting part is constructed to be able to connect each of the boosting chambers and the distribution groove of the transfer seat, and each group of the middle through holes of the boosting part is constructed to be able to connect each of the boosting chambers and the second channel of the transfer seat.

2. A drip-proof diaphragm pump according to claim 1, wherein the pump head comprises a pump head and a flow channel molding ring, the fluid inlet and the fluid outlet are formed in the pump head, the pump head has a pump head groove and an outlet nozzle located in the pump head groove, the flow channel molding ring is arranged in the pump head groove of the pump head in a manner of being sleeved on the outlet nozzle, so that the pump head groove of the pump head is separated by the flow channel molding ring into the first flow channel and the second flow channel, wherein the pump head perforation is formed between the pump head and the flow channel molding ring, and the entire circumferential direction of the flow control element is clamped between the bottom of the flow channel molding ring and the intermediate transfer seat.

3. The drip-proof diaphragm pump according to claim 2, wherein the pump head has a notch, and in the height direction, the position of the notch of the pump head is opposite to the position of the flow channel molding ring, so that the notch of the pump head forms the pump head through hole of the pump head portion between the pump head and the flow channel molding ring.

4. The drip-proof diaphragm pump according to claim 2, wherein the top of the flow channel molding ring has a notch, and in the height direction, the position of the notch of the flow channel molding ring is opposite to the position of the pump head, so that the pump head through hole of the pump head portion is formed between the pump head and the flow channel molding ring by the notch of the flow channel molding ring. 5 . The drip-proof diaphragm pump according to claim 2 , wherein the flow channel molding ring has a through hole, and the through hole of the flow channel molding ring forms the pump head through hole of the pump head.

6. The drip-proof diaphragm pump according to claim 3, wherein the pump head has a limiting arm, the limiting arm is located in the pump head groove of the pump head, and the limiting arm abuts against the outer wall of the flow channel molding ring so that the flow channel molding ring is prevented from moving by the limiting arm.

7. The drip-proof diaphragm pump according to claim 4, wherein the pump head has a limiting arm, the limiting arm is located in the pump head groove of the pump head, and the limiting arm abuts against the outer wall of the flow channel molding ring so that the flow channel molding ring is prevented from moving by the limiting arm.

8. The drip-proof diaphragm pump according to claim 5, wherein the pump head has a limiting arm, the limiting arm is located in the pump head groove of the pump head, and the limiting arm abuts against the outer wall of the flow channel molding ring so that the flow channel molding ring is prevented from moving by the limiting arm.

9. The diaphragm portion according to any one of claims 1 to 8, wherein the anti-drip diaphragm pump comprises a sealing gasket, the sealing gasket having a first pad body perforation and a plurality of second pad body perforations, the central through hole of the pressurizing portion and the second channel of the intermediate transfer seat are connected via the first pad body perforation of the sealing gasket, and the peripheral through hole of the pressurizing portion and the distribution groove of the intermediate transfer seat are connected via the second pad body perforations of the sealing gasket.

10. An anti-drip diaphragm pump according to any one of claims 1 to 8, wherein the anti-drip diaphragm pump comprises an outlet check valve and a plurality of inlet check valves, wherein the outlet check valve is arranged above the boosting part, wherein the outlet check valve opens the middle through hole of the boosting part by deforming upward so that the middle through hole of the boosting part and the second channel of the intermediate transfer seat are communicated with each other, and the inlet check valve is arranged below the boosting part, wherein the inlet check valve opens the peripheral through holes of the boosting part by deforming downward so that the boosting chamber of the boosting part and the distribution groove of the intermediate transfer seat are communicated with each other.

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