Valve plate and pump head structure

Abstract

The utility model discloses a valve plate and a pump head structure, the valve plate comprises a valve plate body and a plurality of valve clacks, one end of each valve clack is connected with the outer side wall of the valve plate body, the plurality of valve clacks are arranged at equal angle intervals along the circumferential direction of the valve plate body, a guide column is arranged on the bottom wall of the valve plate body, and the guide column is connected with the valve plate body. A first convex rib arranged along the outer edge of the valve plate body is arranged on the bottom wall of the valve plate body, a second convex rib arranged along the outer edge of the valve plate body is arranged on the bottom wall of each valve clack, and the left side and the right side of each second convex rib are connected with two adjacent second convex ribs. Through the design of the first convex rib and the second convex rib, the sealing performance between the valve plate and the diaphragm chamber is better, even if the edge of the valve plate is warped to cause deformation in the long-term use process, the first convex rib and the second convex rib can keep a good sealing effect with the diaphragm chamber, and the service life of the valve plate is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of booster pumps, in particular to a valve plate and a pump head structure. Background Art

[0002] Currently, water purifiers are often equipped with a booster pump, which primarily consists of a booster pump head and a drive motor. The booster pump head typically comprises, from bottom to top, a pump head seat, a valve plate, a piston rack, a piston, a piston valve seat, and a pump head cover. A valve plate is located between the piston and the piston rack. The booster pump operates by rotating an inclined eccentric cam driven by a motor, which in turn drives the piston rack and its pendulum wheel up and down. The valve plate elastically deforms as the pendulum wheel swings, causing the volume of the booster chamber to change, achieving the process of water intake and boosted drainage.

[0003] The water inlet and outlet parts of the existing booster pump mainly include a pump cover and a lower shell that are fixed to each other. A control body is arranged between the pump cover and the lower shell. The chamber is located in the control body. The drain port of the chamber is located in the middle of the control body. The water intake port of the chamber is located one circle outside the middle of the control body. A separation cylinder is provided on the pump cover. When the pump cover is fixed on the lower shell, the separation cylinder abuts against the control body. The space between the pump cover and the lower shell is divided into two parts by the separation cylinder. The one-way valve at the drain port is located in the separation cylinder. The middle part of the valve plate of the one-way valve is clamped and fixed on the control body. The drain port is closed by the valve plate. When the volume of the chamber is reduced, the outer edge of the valve plate rises under the water pressure, thereby opening the drain port and discharging water. However, the edge of the valve plate is warped and deformed during long-term use, affecting the sealing of the valve plate. Utility Model Content

[0004] The purpose of the utility model is to provide a valve plate and pump head structure to solve the technical problem in the prior art that the valve plate is deformed due to edge warping during long-term use, thereby affecting the sealing performance of the valve plate.

[0005] The utility model provides a valve disc, comprising a valve disc body and a plurality of valve flaps, one end of each valve flap being connected to the outer side wall of the valve disc body, the plurality of valve flaps being arranged at equal angles along the circumference of the valve disc body, a guide post being provided on the bottom wall of the valve disc body, a first rib being provided along the outer edge of the valve disc body on the bottom wall of the valve disc body, and a second rib being provided along the outer edge of the valve disc on the bottom wall of each valve flap, the left and right sides of each second rib being connected to two adjacent second ribs. The design of the first and second ribs improves the sealing performance between the valve disc and the diaphragm chamber. Even if the edge of the valve disc warps and deforms during long-term use, the first and second ribs can maintain a good sealing effect with the diaphragm chamber, thereby extending the service life of the valve disc.

[0006] As for the valve disc as described above, the bottom wall of the valve disc body and the bottom wall of the valve flap are both plane walls, and the bottom wall of the valve disc body is flush with the bottom walls of the plurality of valve flaps.

[0007] In the valve plate as described above, the bottom wall of the first convex rib is flush with the bottom wall of the second convex rib.

[0008] In the valve plate as described above, the height of the first convex rib and the height of the second convex rib are both 0.1 mm-0.3 mm.

[0009] As for the valve disc as described above, the top wall of the valve disc is an inclined wall, and the inclined wall gradually inclines downward outward from the connection with the valve disc body.

[0010] As described above, the valve disc has a groove on the top wall of the valve disc body, and an annular platform and a plurality of reinforcing ribs are provided in the groove. One end of the reinforcing rib is connected to the outer peripheral wall of the annular platform, and the other end is connected to the side wall of the groove. The plurality of reinforcing ribs are arranged at equal angles along the circumference of the annular platform.

[0011] As for the valve plate as described above, the valve plate body and the plurality of valve flaps are an integral injection-molded structure.

[0012] As for the valve disc as described above, a polygonal platform is provided on the bottom wall of the valve disc body, and the polygonal platform is provided on the outer peripheral wall of the guide column.

[0013] As for the valve disc as described above, an annular protrusion is provided on the outer side wall of the guide column, and the annular protrusion is located below the polygonal platform. The annular protrusion is used to abut against the diaphragm chamber to limit the movement of the valve disc body away from the diaphragm chamber.

[0014] The utility model also provides a pump head structure, comprising the valve plate as described above.

[0015] The implementation of the present invention will have the following beneficial effects:

[0016] In the present invention, the valve disc includes a valve disc body and a plurality of valve flaps. One end of each valve flap is connected to the outer wall of the valve disc body. The valve flaps are arranged at equal angles along the circumference of the valve disc body. A guide post is provided on the bottom wall of the valve disc body. A first rib is provided on the bottom wall of the valve disc body along the outer edge of the valve disc body. A second rib is provided on the bottom wall of each valve flap along the outer edge of the valve disc. Each second rib is connected to two adjacent second ribs on its left and right sides. The design of the first and second ribs improves the sealing between the valve disc and the diaphragm chamber. Even if the edge of the valve disc warps and deforms during long-term use, the first and second ribs can maintain a good sealing effect with the diaphragm chamber, thereby extending the service life of the valve disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 is a schematic structural diagram of a valve plate according to an exemplary embodiment;

[0019] Figure 2 is a structural schematic diagram of a valve plate from another perspective according to an exemplary embodiment;

[0020] Figure 3 is a front view of a valve plate according to an exemplary embodiment;

[0021] Figure 4 is a front cross-sectional view of a valve disc according to an exemplary embodiment;

[0022] Figure 5 is a front cross-sectional view of a pump head structure according to an exemplary embodiment;

[0023] Figure 6 is a structural exploded view of a pump head structure according to an exemplary embodiment.

[0024] Among them: 1. Valve body; 11. Guide column; 111. Polygonal platform; 112. Annular protrusion; 12. Second convex rib; 13. Groove; 131. Annular platform; 132. Reinforcement rib; 2. Valve disc; 21. First convex rib; 3. Piston frame; 31. Balance wheel; 4. Diaphragm; 5. Piston; 6. Diaphragm chamber; 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 Figure 1-Figure 4The present invention provides a valve disc, comprising a valve disc body 1 and a plurality of valve flaps 2, one end of each valve flap 2 being connected to the outer side wall of the valve disc body 1, and the plurality of valve flaps 2 being arranged at equal angles along the circumference of the valve disc body 1. A guide post 11 is provided on the bottom wall of the valve disc body 1, and a first rib 21 is provided on the bottom wall of the valve disc body 1 along the outer edge of the valve disc body 1. A second rib 12 is provided on the bottom wall of each valve flap 2 along the outer edge of the valve disc 2, and each second rib 12 is connected to two adjacent second ribs 12 on its left and right sides. The design of the first rib 21 and the second rib 12 improves the sealing between the valve disc and the diaphragm chamber 6. Even if the edge of the valve disc warps and deforms during long-term use, the first rib 21 and the second rib 12 can maintain a good sealing effect with the diaphragm chamber 6, thereby extending the service life of the valve disc.

[0031] Specifically, the number of valve flaps 2 is equal to the number of chambers in the booster pump. Each valve flap 2 can be opened and closed independently to achieve alternating drainage of the chamber. The valve flaps 2 are arranged at equal angles along the circumference of the valve body 1, making the force applied to the valve more uniform and improving the valve's impact resistance.

[0032] In a specific embodiment, the number of the valve flaps 2 is the same as the number of the chambers, which is six. The six valve flaps 2 are evenly distributed on the outer peripheral side wall of the valve plate body 1 and are arranged at equal circumferential angles. One side of the valve flap 2 is fixed integrally with the valve plate body 1, and the other side extends in the radial direction of the valve plate body 1.

[0033] In some other embodiments, the number of the valve flaps 2 can also be five, seven, eight or other values, and the five, seven or eight valve flaps 2 are arranged at equal circumferential angles to form a five-chamber booster pump, a seven-chamber booster pump, an eight-chamber booster pump or a booster pump with another number of chambers.

[0034] Furthermore, the bottom wall of the valve body 1 and the bottom wall of the valve flap 2 are both planar walls, and the bottom wall of the valve body 1 is flush with the bottom walls of the plurality of valve flaps 2. When the valve is mounted in the diaphragm chamber 6, the bottom wall of the valve body 1 and the bottom wall of the valve flap 2 can be in close contact with the diaphragm chamber 6, forming a sealed connection.

[0035] Furthermore, the bottom wall of the first rib 21 is flush with the bottom wall of the second rib 12. When the valve disc is installed in the diaphragm chamber 6, the bottom wall of the first rib 21 and the bottom wall of the second rib 12 can be tightly attached to the diaphragm chamber 6 to form a sealed connection.

[0036] Furthermore, the height of the first rib 21 and the height of the second rib 12 are both 0.1mm-0.3mm, which does not affect the function of the valve disc, but also compensates for deformation of the valve disc during long-term use, thereby ensuring the sealing performance of the valve disc. In a specific embodiment, the thickness of the valve disc body 1 is 3.5mm, and the thickness of the first rib 21 and the second rib 12 is 0.2mm.

[0037] Furthermore, the top wall of the valve flap 2 is an inclined wall, and the inclined wall gradually slopes downward from the connection with the valve plate body 1, which is conducive to the deformation of the valve flap 2 when the booster pump is working.

[0038] Furthermore, a groove 13 is defined on the top wall of the valve disc body 1. Within the groove 13, an annular platform 131 and a plurality of reinforcing ribs 132 are disposed. One end of each reinforcing rib 132 is connected to the outer circumferential wall of the annular platform 131, and the other end is connected to the sidewall of the groove 13. The plurality of reinforcing ribs 132 are spaced at equal angles along the circumference of the annular platform 131. Because the valve disc body 1 is relatively thick, the groove 13 is provided on the valve disc body 1 to increase its resilience. The design of the reinforcing ribs 132 enhances the strength of the valve disc, providing it with both good strength and resilience.

[0039] Furthermore, the valve plate body 1 and the plurality of valve flaps 2 are an integral injection-molded structure. Specifically, the valve plate is injection-molded from a soft rubber material, and the entire valve plate is a whole, which has certain elastic deformation properties and better integrity.

[0040] Furthermore, a polygonal platform 111 is provided on the bottom wall of the valve disc body 1, and the polygonal platform 111 is provided on the outer peripheral wall of the guide column 11. The polygonal platform 111 is used to be plugged into the diaphragm chamber 6 to prevent the valve disc from rotating accidentally.

[0041] Furthermore, an annular protrusion 112 is provided on the outer wall of the guide column 11 , and the annular protrusion 112 is located below the polygonal platform 111 . The annular protrusion 112 is used to abut against the diaphragm chamber 6 to limit the valve body 1 from moving away from the diaphragm chamber 6 .

[0042] See also Figure 5 and Figure 6The present invention also provides a pump head structure, including a valve disc, which includes a valve disc body 1 and a plurality of valve flaps 2. One end of each valve flap 2 is connected to the outer wall of the valve disc body 1. The plurality of valve flaps 2 are arranged at equal angles along the circumference of the valve disc body 1. A guide post 11 is provided on the bottom wall of the valve disc body 1. A first rib 21 is provided on the bottom wall of the valve disc body 1 along the outer edge of the valve disc body 1. A second rib 12 is provided on the bottom wall of each valve flap 2 along the outer edge of the valve disc 2. The left and right sides of each second rib 12 are connected to two adjacent second ribs 12. The design of the first rib 21 and the second rib 12 improves the sealing between the valve disc and the diaphragm chamber 6. Even if the edge of the valve disc warps and deforms during long-term use, the first rib 21 and the second rib 12 can maintain a good sealing effect with the diaphragm chamber 6, thereby improving the service life of the valve disc.

[0043] Furthermore, the pump head structure also includes a bracket 8, a piston rack 3, a diaphragm 4, a piston 5, a diaphragm chamber 6 and a pump head cover 7. A balance wheel 31 is provided on the piston 5. The pump head cover 7 is installed on the bracket 8 to form a mounting cavity. The diaphragm 4, the piston 5 and the diaphragm chamber 6 are all arranged in the mounting cavity. The diaphragm 4 is provided with a protruding structure on the side facing the bracket 8, and a third mounting hole is provided on the other side of the diaphragm 4 body. The third mounting hole passes through the protruding structure, and the piston 5 is penetrated into the third mounting hole from top to bottom. A fourth mounting hole is provided on the piston 5, and a screw is installed on the piston 5. The screw passes through the fourth mounting hole and is connected to the balance wheel 31.

[0044] Specifically, the diaphragm chamber 6 is sealed and connected to the pump head cover 7 to form a water outlet cavity in the middle and a water inlet cavity outside the water outlet cavity. The pump head cover 7 is provided with a water inlet pipe port and a water outlet pipe port. The water inlet pipe port is connected to the water inlet cavity, and the water outlet pipe port is connected to the water outlet cavity. The diaphragm chamber 6 is provided with a plurality of diaphragm cavities, and the diaphragm cavities are respectively provided with a water inlet valve. The water inlet valve is a one-way valve that can only conduct one-way from the water inlet cavity to the diaphragm cavity. The water outlet pipe port is connected to the water outlet cavity of the pump head cover 7. The valve plate is arranged at the center of the top of the diaphragm chamber 6. The valve plate is a one-way valve that conducts one-way from the diaphragm cavity located in the middle to the water outlet cavity. Each diaphragm cavity of the diaphragm chamber 6 is provided with a number of water inlet holes, and the water inlet valve covers the water inlet holes from the inside. The water inlet valve is made of soft rubber. When the piston 5 and the diaphragm 4 move downward under the drive of the motor, the water inlet valve opens, and the water at the water inlet pipe mouth is sucked into the diaphragm cavity through the water inlet cavity; the diaphragm chamber 6 is also provided with a number of drainage holes, and the valve plate covers the drainage holes from the outside. The valve plate is also made of soft rubber. When the piston 5 and the diaphragm 4 move upward under the drive of the motor, the water in the diaphragm cavity is pressurized and pressed out to the drainage hole, the valve plate opens, the water flows to the water outlet cavity, and the water flow pressurization is completed through the water outlet pipe mouth.

[0045] Specifically, the bracket 8 is provided with a first mounting hole, and the pump head cover 7 is provided with a second mounting hole. During installation, bolts are sequentially passed through the first mounting hole and the second mounting hole to securely connect the pump head cover 7 to the bracket 8, thereby facilitating assembly of the booster pump and improving product installation efficiency.

[0046] 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 valve plate, characterized in that: The invention comprises a valve disc body (1) and a plurality of valve flaps (2), one end of each valve flap (2) is connected to the outer side wall of the valve disc body (1), and the plurality of valve flaps (2) are arranged at equal angles along the circumference of the valve disc body (1), a guide column (11) is provided on the bottom wall of the valve disc body (1), a first rib (21) is provided along the outer edge of the valve disc body (1) on the bottom wall of the valve disc body (1), and a second rib (12) is provided along the outer edge of the valve disc (2) on the bottom wall of each valve flap (2), and the left and right sides of each second rib (12) are connected to two adjacent second ribs (12).

2. The valve plate according to claim 1, characterized in that: The bottom wall of the valve plate body (1) and the bottom wall of the valve flap (2) are both plane walls, and the bottom wall of the valve plate body (1) is flush with the bottom walls of several valve flaps (2).

3. The valve plate according to claim 2, characterized in that: The bottom wall of the first convex rib (21) is flush with the bottom wall of the second convex rib (12).

4. The valve plate according to claim 3, characterized in that: The height of the first convex rib (21) and the height of the second convex rib (12) are both 0.1 mm to 0.3 mm.

5. The valve plate according to claim 2, characterized in that: The top wall of the valve flap (2) is an inclined wall, and the inclined wall gradually inclines outward and downward from the connection point with the valve disc body (1).

6. The valve plate according to claim 1, characterized in that: A groove (13) is provided on the top wall of the valve plate body (1), and an annular platform (131) and a plurality of reinforcing ribs (132) are provided in the groove (13), one end of the reinforcing rib (132) is connected to the outer peripheral wall of the annular platform (131), and the other end is connected to the side wall of the groove (13), and the plurality of reinforcing ribs (132) are arranged at equal angles along the circumference of the annular platform (131).

7. The valve plate according to claim 1, characterized in that: The valve plate body (1) and the plurality of valve flaps (2) are an integral injection-molded structure.

8. The valve plate according to claim 1, characterized in that: A polygonal platform (111) is provided on the bottom wall of the valve plate body (1), and the polygonal platform (111) is arranged on the outer peripheral wall of the guide column (11).

9. The valve plate according to claim 8, characterized in that: An annular protrusion (112) is provided on the outer wall of the guide column (11), and the annular protrusion (112) is located below the polygonal platform (111). The annular protrusion (112) is used to abut against the diaphragm chamber to limit the movement of the valve body (1) away from the diaphragm chamber.

10. A pump head structure, characterized in that: The valve plate comprises the valve plate according to any one of claims 1 to 9.

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