Water outlet noise reduction structure of water pump

Abstract

The utility model discloses a water pump water outlet noise reduction structure which comprises a water inlet, a water inlet cavity, a water outlet cavity and a water outlet, a water inlet one-way valve is arranged between the water inlet and the water inlet cavity, a driving device used for driving a membrane of the water inlet cavity to expand and contract is arranged in the water inlet cavity, and a water outlet one-way valve is arranged between the water inlet cavity and the water outlet cavity. A water baffle opposite to the water outlet one-way valve is further arranged in the water outlet cavity, the water baffle divides the water outlet cavity into an upper cavity and a lower cavity, the water outlet one-way valve is located in the lower cavity, the upper cavity is communicated with the water outlet, and a plurality of first water outlet gaps communicated with the upper cavity and the lower cavity are formed between the periphery of the water baffle and the side wall of the water outlet cavity. The utility model has the advantages that the structure is simple, and the noise can be obviously reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a water pump water outlet noise reduction structure. Background Art

[0002] In modern family life, water pumps are an important device widely used in various household products, such as water purifiers, fish tanks, washing machines and bathroom facilities. The water pumps in these devices are usually responsible for the extraction, delivery and circulation of water to ensure the normal operation of the equipment. Although water pumps play an indispensable role in family life, the noise problem generated during their operation has caused a lot of trouble for users.

[0003] Studies have shown that water pumps generate vibration and noise when working, especially under high load and fast operation, the noise level may reach an uncomfortable level. This noise not only affects the daily life and rest of family members, but may also have a negative impact on the quality of life of infants and the elderly.

[0004] Although there are some low-noise water pump products on the market, their structures are relatively complex, their costs are relatively high, and their noise reduction efficiency is relatively low.

[0005] Therefore, it is necessary to further improve and perfect the prior art to overcome these deficiencies, and the present invention is made based on this situation. Utility Model Content

[0006] The utility model aims to overcome the deficiencies of the prior art and provide a water pump outlet noise reduction structure which has a simple structure and can significantly reduce noise.

[0007] The utility model is realized by the following technical solutions:

[0008] In order to solve the above technical problems, the utility model provides a water pump outlet noise reduction structure, comprising a water inlet, a water inlet chamber, a water outlet chamber and a water outlet, a water inlet check valve is arranged between the water inlet and the water inlet chamber, a driving device for driving the expansion and contraction of its membrane is arranged in the water inlet chamber, and a water outlet check valve is arranged between the water inlet chamber and the water outlet chamber;

[0009] The water outlet chamber is also provided with a water baffle facing the water outlet one-way valve, the water baffle divides the water outlet chamber into an upper chamber and a lower chamber, the water outlet one-way valve is located in the lower chamber, the upper chamber is connected to the water outlet, and a plurality of first water outlet gaps connecting the upper chamber and the lower chamber are provided between the periphery of the water baffle and the side wall of the water outlet chamber.

[0010] In order to further solve the technical problem to be solved by the utility model, the utility model provides a water pump water outlet noise reduction structure, in which the water baffle is clamped between the upper cavity and the lower cavity, and a convex ring is provided around the water baffle, and the outer side surface of the convex ring is provided with a plurality of side grooves arranged at intervals, and the upper and lower surfaces of the convex ring are respectively provided with upper grooves and lower grooves arranged radially and connected to the corresponding side grooves at corresponding positions, and the corresponding upper grooves, side grooves and lower grooves together form the first water outlet gap.

[0011] In order to further solve the technical problem to be solved by the utility model, in a water pump water outlet noise reduction structure provided by the utility model, a second water outlet gap connecting the upper cavity and the lower cavity is provided in the middle of the water baffle.

[0012] In order to further solve the technical problem to be solved by the utility model, in a water pump water outlet noise reduction structure provided by the utility model, a limit column is provided in the middle of the water outlet chamber, the lower end of the limit column presses the center of the valve plate of the water outlet one-way valve, and a through hole for the limit column to pass through is provided in the middle of the water baffle, and the diameter of the through hole is larger than the diameter of the limit column to form a second water outlet gap between the two.

[0013] In order to further solve the technical problem to be solved by the utility model, in a water pump water outlet noise reduction structure provided by the utility model, the width m of the first water outlet gap is 0.1mm-1mm.

[0014] In order to further solve the technical problem to be solved by the utility model, in a water pump water outlet noise reduction structure provided by the utility model, the width n of the second water outlet gap is 0.1mm-1mm.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] 1. A water baffle is provided in the water outlet chamber of the utility model. When the water flows into the lower chamber, it will first impact the water baffle. After this process, the speed of the water flow will gradually slow down. Then, the water will flow into the upper chamber through the water baffle at a uniform and slow speed. This design effectively slows down the water flow speed and avoids the noise caused by excessive flow.

[0017] 2. In order to further enhance the noise reduction effect of the water outlet cavity, a plurality of first water outlet gaps are arranged between the periphery of the water baffle and the side wall of the water outlet cavity, and a second water outlet gap is arranged in the middle of the water baffle. The arrangement of these gaps can not only realize the effective connection between the upper cavity and the lower cavity, but also enable the water flow in the lower cavity to flow into the upper cavity in a slow and uniform manner. The water flow can maintain a smooth transition when passing through the water outlet one-way valve and the water outlet cavity, avoiding pressure fluctuations caused by sudden changes in flow rate. In addition, the water baffle and the first and second water outlet gaps thereon can also prevent the water flow from releasing pressure too quickly when passing through the water outlet one-way valve and entering the water outlet cavity, effectively reducing the impact of the water flow impact on the water outlet one-way valve, thereby reducing the noise of the water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0019] Figure 1 It is a top view of the water pump;

[0020] Figure 2 yes Figure 1 Sectional view at AA;

[0021] Figure 3 yes Figure 1 Sectional view at the middle BB;

[0022] Figure 4 yes Figure 3 A partial enlarged view of point C in the middle;

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the water retaining plate. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] like Figures 1 to 5 The water pump outlet noise reduction structure shown in the figure comprises a water inlet 1, a water inlet chamber 2, a water outlet chamber 3 and a water outlet 4. A water inlet check valve 5 is provided between the water inlet 1 and the water inlet chamber 2, and a water outlet check valve 7 is provided between the water inlet chamber 2 and the water outlet chamber 3. The check valve prevents the backflow of water flow and also ensures the working efficiency of the water pump.

[0026] In addition, a driving device 6 is provided at the water inlet chamber 2 to control the expansion and contraction of the membrane in the chamber to achieve water pumping. The driving device 6 generally includes a motor, an eccentric swing rod, a swing frame, a diaphragm, etc. The driving device 6 is a prior art and will not be described in detail here.

[0027] One of the innovations of the utility model is that a water baffle plate 8 is provided in the water outlet chamber 3 facing the water outlet check valve 7. The water baffle plate 8 divides the water outlet chamber 3 into an upper chamber 31 and a lower chamber 32, wherein the water outlet check valve 7 is located in the lower chamber 32. The upper chamber 31 is connected to the water outlet 4, and the treated water flow can be smoothly discharged from the water outlet 4.

[0028] The presence of the water baffle 8 not only has the function of physical blocking, but also has a significant impact on the movement of water flow. When the water flow enters the lower chamber 32, it will first impact the water baffle 8. After this process, the speed of the water flow will gradually slow down. Subsequently, the water flow will flow into the upper chamber 31 through the water baffle 8 at a uniform and slow speed. Such a design effectively slows down the water flow speed and avoids the noise caused by excessive flow.

[0029] In order to further enhance the noise reduction effect of the water outlet chamber 3, a plurality of first water outlet gaps 81 are arranged between the periphery of the water baffle 8 and the side wall of the water outlet chamber 3. The arrangement of these gaps can not only realize the effective connection between the upper chamber 31 and the lower chamber 32, but also enable the water flow in the lower chamber 32 to flow into the upper chamber 31 in a slow and uniform manner. Through this connection design, the water flow can maintain a smooth transition when passing through the water outlet check valve 7 and the water outlet chamber 3, avoiding the pressure fluctuation caused by the sudden change of flow rate. In addition, the water baffle 8 and the first water outlet gap 81 thereon can also prevent the water flow from releasing pressure too quickly when passing through the water outlet check valve 7 and entering the water outlet chamber 3, effectively reducing the impact of the water flow impact on the water outlet check valve 7, thereby reducing the noise of the water flow. Such a design greatly reduces the generation of noise and improves the overall operation stability of the water pump.

[0030] More specifically, the water baffle 8 is clamped between the upper cavity 31 and the lower cavity 32, and a convex ring 82 is provided around the water baffle 8, and a plurality of side grooves 811 are provided on the outer side of the convex ring 82 at intervals, and upper and lower corresponding positions of the convex ring 82 are respectively provided with an upper groove 812 and a lower groove 813 which are radially arranged and connected to the corresponding side grooves 811, and the corresponding upper groove 812, side groove 811 and lower groove 813 jointly form the first water outlet gap 81. The formation of the first water outlet gap 81 allows the water flow between the upper cavity 31 and the lower cavity 32 to enter the upper cavity more flexibly and then flow to the water outlet 4. In the process of the water flow passing through these grooves, the speed will be effectively controlled, reducing the turbulence and noise caused by the sudden change of the water flow. This structure not only improves the stability of the water flow, but also further enhances the noise reduction effect of the system.

[0031] More specifically, the middle of the water baffle 8 is provided with a second water outlet gap 83 connecting the upper chamber 31 and the lower chamber 32, which is another important innovation of the utility model. This gap also connects the upper chamber 31 and the lower chamber 32, providing an additional channel for the smooth flow of water. Through this design, water can effectively flow from the lower chamber 32 into the upper chamber 31, further improving the working efficiency and water outlet performance of the water pump.

[0032] A limiting column 33 is also provided in the middle of the water outlet chamber 3. The lower end of the limiting column is pressed tightly against the center of the valve plate of the water outlet check valve 7 to ensure the accurate positioning and stability of the valve plate. The limiting column 33 not only physically supports the valve plate, but also regulates the water flow pressure to avoid the impact caused by excessive water pressure.

[0033] The middle part of the water baffle 8 is provided with a through hole 84 for the limiting column 33 to pass through. The diameter of the through hole is designed to be larger than the diameter of the limiting column 33, so that a second water outlet gap 83 is formed between the two. This design ensures that the water can flow smoothly when passing through the water baffle 8, avoiding water flow blockage caused by too narrow space. At the same time, the existence of the second water outlet gap 83 also makes the flow of water more stable, effectively reducing the turbulence and noise of the water flow.

[0034] Preferably, the width m of the first water outlet gap 81 is 0.1 mm-1 mm, and the width n of the second water outlet gap 83 is 0.1 mm-1 mm. Specifically, a smaller gap width helps to reduce the speed of the water flow, thereby reducing the noise caused by the impact of the water flow, and at the same time, it can also ensure the uniformity and stability of the water flow in the water outlet cavity 3.

Claims

1. A water pump outlet noise reduction structure, characterized in that: It comprises a water inlet (1), a water inlet chamber (2), a water outlet chamber (3) and a water outlet (4); a water inlet check valve (5) is provided between the water inlet (1) and the water inlet chamber (2); a driving device (6) for driving the membrane to expand and contract is provided in the water inlet chamber (2); and a water outlet check valve (7) is provided between the water inlet chamber (2) and the water outlet chamber (3); The water outlet chamber (3) is also provided with a water baffle plate (8) facing the water outlet one-way valve (7); the water baffle plate (8) divides the water outlet chamber (3) into an upper chamber (31) and a lower chamber (32); the water outlet one-way valve (7) is located in the lower chamber (32); the upper chamber (31) is connected to the water outlet (4); and a plurality of first water outlet gaps (81) connecting the upper chamber (31) and the lower chamber (32) are provided between the periphery of the water baffle plate (8) and the side wall of the water outlet chamber (3).

2. A water pump outlet noise reduction structure according to claim 1, characterized in that: The water retaining plate (8) is clamped between the upper cavity (31) and the lower cavity (32), and a convex ring (82) is provided around the water retaining plate (8), and a plurality of side grooves (811) are provided on the outer side surface of the convex ring (82) at intervals, and upper grooves (812) and lower grooves (813) are respectively provided at corresponding positions on the upper and lower surfaces of the convex ring (82) and are arranged radially and connected to the corresponding side grooves (811), and the corresponding upper grooves (812), side grooves (811) and lower grooves (813) together form the first water outlet gap (81).

3. A water pump outlet noise reduction structure according to claim 1, characterized in that: A second water outlet gap (83) communicating with the upper chamber (31) and the lower chamber (32) is provided in the middle of the water baffle (8).

4. A water pump outlet noise reduction structure according to claim 3, characterized in that: A limiting column (33) is provided in the middle of the water outlet cavity (3), the lower end of the limiting column (33) presses the center of the valve plate of the water outlet one-way valve (7), and a through hole (84) is provided in the middle of the water baffle (8) for the limiting column (33) to pass through, the diameter of the through hole (84) being larger than the diameter of the limiting column (33) so as to form a second water outlet gap (83) between the two.

5. A water pump outlet noise reduction structure according to claim 1, characterized in that: The width m of the first water outlet gap (81) is 0.1 mm-1 mm.

6. A water pump outlet noise reduction structure according to claim 3, characterized in that: The width n of the second water outlet gap (83) is 0.1 mm-1 mm.

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