Diaphragm chamber assembly and booster pump

Abstract

The diaphragm chamber assembly comprises a piston valve seat, a discharge valve and at least one suction valve, the piston valve seat is provided with at least one water outlet hole and at least one water inlet hole, the discharge valve covers the water outlet hole from top to bottom, and the suction valve covers the water inlet hole from bottom to top. The end, facing the center of the suction valve, of the water inlet is gradually reduced, and the end, facing the center of the discharge valve, of the water outlet is gradually reduced. The end, close to the center of the suction valve, of the water inlet hole is designed to be small in size, the flow speed of water flow passing through the end is increased, thrust on the part, close to the center, of the suction valve is increased, the suction valve is fully opened, and the conveying efficiency of inlet water is improved; similarly, the size of the end, close to the center of the suction valve, of the water outlet hole is small, the flow speed of water flow passing through the end is increased, thrust on the portion, close to the center, of the discharge valve is increased, the discharge valve is fully opened, the drainage conveying efficiency is improved, and therefore the water conversion efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of booster pumps, in particular to a diaphragm chamber component and a booster pump. Background Art

[0002] A diaphragm booster pump is a device that uses the reciprocating motion of a diaphragm to boost the pressure and transport of liquids or gases. The diaphragm chamber assembly in existing diaphragm booster pumps typically includes a piston valve seat, a suction valve, and a discharge valve. The piston valve seat is provided with circular water inlet and outlet holes, with the suction valve covering the water inlet and the discharge valve covering the water outlet. Its working principle is that a drive mechanism (such as an electric motor or pneumatics) drives the piston and diaphragm to reciprocate. When the piston and diaphragm move downward, negative pressure forms in the pump chamber, the suction valve opens, and the medium is sucked into the pump chamber. When the piston and diaphragm move upward, the pressure in the pump chamber increases, the suction valve closes, and the discharge valve opens, pushing the medium out, thereby completing the medium delivery and boosting. However, since the suction valve and the discharge valve are usually stronger in structure the closer they are to the center, a greater thrust is required to open them. The water inlet and outlet holes are designed as circular holes. The flow rate of the water inlet and outlet holes near the center of the valve body is the same as the flow rate near the edge of the valve body, resulting in insufficient thrust on the valve body near the center, making it difficult to fully open the valve body, resulting in low water delivery efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a diaphragm chamber assembly and a booster pump to solve the technical problem in the prior art that the water inlet and outlet holes on the piston valve seat are designed as circular holes, and the flow rate of the water inlet and outlet holes near the center of the valve body is the same as the flow rate near the edge of the valve body, resulting in insufficient thrust on the valve body near the center, making it difficult to fully open the valve body, resulting in low water delivery efficiency.

[0004] The utility model provides a diaphragm chamber assembly, including a piston valve seat, a discharge valve and at least one suction valve, wherein the piston valve seat is provided with at least one water outlet hole and at least one water inlet hole, the discharge valve covers the water outlet hole from top to bottom, and the suction valve covers the water inlet hole from bottom to top, the water inlet hole gradually decreases toward one end of the center of the suction valve, and the water outlet hole gradually decreases toward one end of the center of the discharge valve.

[0005] In the diaphragm chamber assembly as described above, the water inlet hole is a trumpet-shaped structure, the water inlet hole is arranged along the radial direction of the suction valve, and the narrow end of the water inlet hole faces the center of the suction valve.

[0006] In the diaphragm chamber assembly as described above, the water outlet hole is a trumpet-shaped structure, the water outlet hole is arranged along the radial direction of the discharge valve, and the narrow end of the water outlet hole faces the center of the suction valve.

[0007] In the diaphragm chamber assembly as described above, the suction valve and the discharge valve are both umbrella-shaped structures.

[0008] As described above in the diaphragm chamber assembly, the discharge valve includes a valve body and at least one valve flap, wherein the valve flap is provided on the outer periphery of the valve body and covers the water outlet hole.

[0009] As described above, the diaphragm chamber assembly has a first ball groove that is recessed downwardly on the top wall of the piston valve seat, a first mounting hole is provided in the middle of the first ball groove, the discharge valve is plugged into the first mounting hole, and the water outlet is provided on the side wall of the first ball groove.

[0010] As described above, in the diaphragm chamber assembly, at least one diaphragm cavity is formed on the bottom wall of the piston valve seat, and at least one water outlet hole and at least one water inlet hole are in communication with the diaphragm cavity.

[0011] As described above, the diaphragm chamber assembly has a second ball groove that is recessed upward on the bottom wall of the diaphragm cavity, a second mounting hole is provided in the middle of the second ball groove, the suction valve is plugged into the second mounting hole, and the water inlet hole is provided on the side wall of the second ball groove.

[0012] As described above, the diaphragm chamber assembly has an annular groove on the top wall of the piston valve seat, which divides the piston valve seat into two areas, an inner ring and an outer ring. The water outlet is provided in the inner ring, and the water inlet is provided in the outer ring.

[0013] The utility model also provides a booster pump, comprising the diaphragm chamber assembly as described above.

[0014] The implementation of the present invention will have the following beneficial effects:

[0015] In the present invention, the diaphragm chamber assembly includes a piston valve seat, a discharge valve, and at least one suction valve. The piston valve seat is provided with at least one water outlet and at least one water inlet. The discharge valve covers the water outlet from top to bottom, and the suction valve covers the water inlet from bottom to top. The water inlet gradually decreases toward the center of the suction valve, and the water outlet gradually decreases toward the center of the discharge valve. By designing the end of the water inlet near the center of the suction valve to be smaller, that is, the end is narrow, the flow rate of water passing through the narrow end increases, and the thrust on the portion of the suction valve near the center becomes larger, so that the water flow can fully open the suction valve, thereby improving the water supply efficiency. Similarly, the end of the water outlet hole near the center of the suction valve is also smaller, that is, the end is narrow, the flow rate of water passing through the narrow end increases, and the thrust on the portion of the discharge valve near the center becomes larger, so that the water flow can fully open the discharge valve, thereby improving the water supply efficiency, thereby improving the water conversion efficiency in the booster pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 is a structural schematic diagram of a diaphragm chamber assembly according to an exemplary embodiment;

[0018] Figure 2 is a structural schematic diagram of a diaphragm chamber assembly from another perspective according to an exemplary embodiment;

[0019] Figure 3 is a structural exploded view of a diaphragm chamber assembly according to an exemplary embodiment;

[0020] Figure 4 is a structural exploded view of a diaphragm chamber assembly from another perspective according to an exemplary embodiment;

[0021] Figure 5 is a top view of a piston valve seat according to an exemplary embodiment;

[0022] Figure 6 is a bottom view of a piston valve seat according to an exemplary embodiment;

[0023] Figure 7 is a structural exploded view of a booster pump according to an exemplary embodiment.

[0024] Among them: 1. Piston valve seat; 11. Water outlet hole; 12. Water inlet hole; 13. First ball groove; 131. First mounting hole; 132. Positioning groove; 14. Diaphragm cavity; 15. Second ball groove; 151. Second mounting hole; 16. Ring groove; 161. Sealing ring; 2. Discharge valve; 21. Valve body; 22. Valve disc; 3. Suction valve; 4. Piston rack; 41. Pendulum wheel; 5. Diaphragm; 6. Piston; 7. Pump head cover; 8. Bracket. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0028] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0030] See also Figures 1-6The utility model provides a diaphragm chamber assembly, including a piston valve seat 1, a discharge valve 2 and at least one suction valve 3. The piston valve seat 1 is provided with at least one water outlet hole 11 and at least one water inlet hole 12. The discharge valve 2 covers the water outlet hole 11 from top to bottom, and the suction valve 3 covers the water inlet hole 12 from bottom to top. The water inlet hole 12 gradually decreases toward one end of the center of the suction valve 3, and the water outlet hole 11 gradually decreases toward one end of the center of the discharge valve 2. By designing the end of the water inlet hole 12 close to the center of the suction valve 3 to be smaller in size, that is, the end is a narrow end, the flow rate of water flowing through the narrow end increases, and the thrust on the part of the suction valve 3 close to the center becomes larger, so that the water flow can fully open the suction valve 3, thereby improving the water intake transportation efficiency; similarly, the size of the end of the water outlet hole 11 close to the center of the suction valve 3 is also smaller, that is, the end is a narrow end, the flow rate of water flowing through the narrow end increases, and the thrust on the part of the discharge valve 2 close to the center becomes larger, so that the water flow can fully open the discharge valve 2, thereby improving the drainage transportation efficiency, thereby improving the water conversion efficiency in the booster pump.

[0031] Specifically, the suction valve 3 and the discharge valve 2 are both made of soft rubber material, and can be deformed under the impact of water flow to open the water inlet hole 12 and the water outlet hole 11.

[0032] Furthermore, the water inlet hole 12 is a trumpet-shaped structure, and is arranged along the radial direction of the suction valve 3, with the narrow end of the water inlet hole 12 facing the center of the suction valve 3. When water flows through the narrow end, the flow rate is high, and the thrust on the part of the suction valve 3 near the center becomes greater, which can fully open the suction valve 3 and improve the water delivery efficiency.

[0033] Furthermore, the water outlet 11 is a trumpet-shaped structure, arranged along the radial direction of the discharge valve 2, with the narrow end of the water outlet 11 facing the center of the suction valve 3. When water flows through the narrow end, the flow rate is high, and the thrust on the portion of the discharge valve 2 near the center becomes greater, which can fully open the discharge valve 2 and improve the drainage efficiency.

[0034] Furthermore, the suction valve 3 and the discharge valve 2 are both umbrella-shaped structures, which can provide a better sealing effect.

[0035] Furthermore, the discharge valve 2 includes a valve body 21 and at least one valve flap 22, which is disposed on the outer periphery of the valve body 21 and covers the water outlet 11. The valve body 21 and the at least one valve flap 22 are an integral injection-molded structure made of a soft rubber material. The entire discharge valve 2 is a single unit, exhibiting certain elastic deformation properties and providing improved integrity.

[0036] Specifically, the top wall of the valve body 21 is provided with a groove, within which is an annular platform and several reinforcing ribs. One end of the reinforcing rib is connected to the outer circumferential wall of the annular platform, and the other end is connected to the side wall of the groove. The ribs are spaced at equal angles along the circumference of the annular platform. Because the valve body 21 is relatively thick, the groove is designed to increase its resilience. The reinforcing ribs also enhance the strength of the discharge valve 2, providing both excellent strength and resilience.

[0037] Specifically, at least one valve flap 22 is arranged at equal angular intervals along the circumference of the valve body 21. The bottom wall of the valve body 21 is provided with a first rib running along the outer edge of the valve body 21. The bottom wall of each valve flap 22 is provided with a second rib running along the outer edge of the valve flap 22. Each second rib is connected to two adjacent second ribs on its left and right sides. The design of these first and second ribs improves the seal between the discharge valve 2 and the piston valve seat 1. Even if the discharge valve 2 warps and deforms during long-term use, the first and second ribs maintain a good seal with the piston valve seat 1, thereby extending the service life of the discharge valve 2.

[0038] Specifically, the height of the first and second ribs are both 0.1 mm to 0.3 mm, which does not affect the function of the discharge valve 2 while compensating for deformation of the discharge valve 2 during long-term use, thereby ensuring the sealing performance of the discharge valve 2. In a specific embodiment, the thickness of the valve body 21 is 3.5 mm, and the thickness of the first and second ribs is 0.2 mm.

[0039] Furthermore, a first ball groove 13 that is recessed downward is provided on the top wall of the piston valve seat 1 , a first mounting hole 131 is provided in the middle of the first ball groove 13 , the discharge valve 2 is plugged into the first mounting hole 131 , and the water outlet 11 is arranged on the side wall of the first ball groove 13 .

[0040] Specifically, a guide column is provided on the bottom wall of the valve body 21, and the guide column is inserted into the first mounting hole 131 to fix the discharge valve 2; an annular protrusion is provided on the outer wall of the guide column, and when the discharge valve 2 is inserted into the first mounting hole 131, the annular protrusion abuts against the lower end wall of the first mounting hole 131 to limit the discharge valve 2 from moving away from the piston valve seat 1; a polygonal platform is provided on the bottom wall of the valve body 21, and a polygonal groove is provided on the bottom wall of the first ball groove 13. The polygonal platform is inserted into the polygonal groove, which can prevent the discharge valve 2 from rotating accidentally.

[0041] Specifically, the first ball groove 13 is provided with a plurality of circumferentially evenly distributed positioning grooves 132. The number of the positioning grooves 132 is the same as the number of the valve flaps 22. There is a gap between every two valve flaps 22. When the discharge valve 2 needs to be installed on the piston valve seat 1, the gap between every two valve flaps 22 is aligned with a positioning groove 132 to achieve the positioning installation of the discharge valve 2.

[0042] Furthermore, at least one diaphragm cavity 14 is defined on the bottom wall of the piston valve seat 1, and at least one of the water outlet holes 11 and at least one of the water inlet holes 12 are in communication with the diaphragm cavity 14. Specifically, the number of valve flaps 22 is equal to the number of diaphragm cavities 14, and each valve flap 22 can be opened and closed independently, enabling alternate drainage of multiple diaphragm cavities 14.

[0043] Specifically, the top wall of the valve flap 22 is an inclined wall, which gradually slopes downward from the connection with the valve body 21 , which is conducive to the deformation of the valve flap 22 to open the water outlet 11 .

[0044] In a specific embodiment, the number of valve flaps 22 is the same as the number of diaphragm cavities 14, that is, six. Each diaphragm cavity 14 is provided with a water inlet hole 12, and each diaphragm cavity 14 is installed with a suction valve 3 to form a six-chamber booster pump.

[0045] Furthermore, a second ball groove 15 that is recessed upward is provided on the bottom wall of the diaphragm cavity 14 , a second mounting hole 151 is provided in the middle of the second ball groove 15 , the suction valve 3 is plugged into the second mounting hole 151 , and the water inlet hole 12 is provided on the side wall of the second ball groove 15 .

[0046] Furthermore, an annular groove 16 is provided on the top wall of the piston valve seat 1, dividing the piston valve seat 1 into an inner ring and an outer ring. The water outlet 11 is provided in the inner ring, and the water inlet 12 is provided in the outer ring. The annular groove 16 is used to connect with the pump head cover 7 to divide the inner cavity of the pump head cover 7 into a water outlet cavity and a water inlet cavity. A sealing ring 161 is provided in the annular groove 16, which enables the pump head cover 7 to be sealed with the piston valve seat 1, ensuring the independence of the water outlet cavity and the water inlet cavity.

[0047] See also Figure 7The present invention also provides a booster pump, comprising the diaphragm chamber assembly described above. The booster pump further comprises a bracket 8, a piston rack 4, a diaphragm 5, a piston 6, and a pump head cover 7. The piston 6 is provided with a balance wheel 41. The pump head cover 7 is mounted on the bracket 8 and forms a mounting cavity. The diaphragm 5, the piston 6, and the diaphragm chamber assembly are all disposed within the mounting cavity. The pump head cover 7 is sealed with the piston valve seat 1, forming a water outlet cavity in the middle and a water inlet cavity located outside the water outlet cavity. The pump head cover 7 is provided with a water inlet and a water outlet. The water inlet is in communication with the water inlet cavity, and the water outlet is in communication with the water outlet cavity. The suction valve 3 is a one-way valve that can only conduct one-way flow from the water inlet cavity to the diaphragm cavity 14. The discharge valve 2 is a one-way valve located in the middle of the diaphragm cavity 14 that can conduct one-way flow to the water outlet cavity. When the piston 6 and the diaphragm 5 move downward under the drive of the motor, the suction valve 3 opens, and the water at the water inlet pipe is sucked into the diaphragm cavity 14 through the water inlet cavity; when the piston 6 and the diaphragm 5 move upward under the drive of the motor, the water in the diaphragm cavity 14 is pressurized and pressed out to the drain hole, the discharge valve 2 opens, the water flows to the water outlet cavity, and the water flow pressurization is completed through the water outlet pipe.

[0048] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model.

Claims

1. A diaphragm chamber assembly, characterized in that: The invention comprises a piston valve seat (1), a discharge valve (2) and at least one suction valve (3); the piston valve seat (1) is provided with at least one water outlet hole (11) and at least one water inlet hole (12); the discharge valve (2) covers the water outlet hole (11) from top to bottom; the suction valve (3) covers the water inlet hole (12) from bottom to top; the water inlet hole (12) gradually decreases toward one end of the center of the suction valve (3); and the water outlet hole (11) gradually decreases toward one end of the center of the discharge valve (2).

2. The diaphragm chamber assembly according to claim 1, characterized in that The water inlet hole (12) is a trumpet-shaped structure, and the water inlet hole (12) is arranged along the radial direction of the suction valve (3), with the narrow end of the water inlet hole (12) facing the center of the suction valve (3).

3. The diaphragm chamber assembly according to claim 2, characterized in that The water outlet hole (11) is a trumpet-shaped structure, and the water outlet hole (11) is arranged along the radial direction of the discharge valve (2), with the narrow end of the water outlet hole (11) facing the center of the suction valve (3).

4. The diaphragm chamber assembly according to claim 3, characterized in that The suction valve (3) and the discharge valve (2) are both umbrella-shaped structures.

5. The diaphragm chamber assembly according to claim 4, characterized in that The discharge valve (2) comprises a valve body (21) and at least one valve flap (22), wherein the valve flap (22) is arranged on the outer periphery of the valve body (21), and the valve flap (22) covers the water outlet hole (11).

6. The diaphragm chamber assembly according to claim 5, characterized in that A first ball groove (13) recessed downward is provided on the top wall of the piston valve seat (1), a first mounting hole (131) is provided in the middle of the first ball groove (13), the discharge valve (2) is plugged into the first mounting hole (131), and the water outlet hole (11) is provided on the side wall of the first ball groove (13).

7. The diaphragm chamber assembly according to claim 4, characterized in that At least one diaphragm cavity (14) is provided on the bottom wall of the piston valve seat (1), and at least one water outlet hole (11) and at least one water inlet hole (12) are in communication with the diaphragm cavity (14).

8. The diaphragm chamber assembly according to claim 7, characterized in that A second ball groove (15) recessed upward is provided on the bottom wall of the diaphragm cavity (14), a second mounting hole (151) is provided in the middle of the second ball groove (15), the suction valve (3) is plugged into the second mounting hole (151), and the water inlet hole (12) is provided on the side wall of the second ball groove (15).

9. The diaphragm chamber assembly according to claim 1, wherein: An annular groove (16) is provided on the top wall of the piston valve seat (1) to divide the piston valve seat (1) into two areas, an inner ring and an outer ring. The water outlet (11) is provided on the inner ring, and the water inlet (12) is provided on the outer ring.

10. A booster pump, characterized in that: The invention comprises the diaphragm chamber assembly according to any one of claims 1 to 9.

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