Noise reduction structure for water pump

Abstract

The noise reduction structure comprises a pump head shell, a water inlet, a water inlet cavity, a water outlet cavity and a water outlet are formed in the pump head shell, a plurality of water inlet one-way valves are arranged between the water inlet and the water inlet cavity, and a driving device used for driving a cavity film of the water inlet cavity to expand and contract to pump water is arranged in the water inlet cavity. A water outlet one-way valve is arranged between the water inlet cavity and the water outlet cavity; a transition cavity is further arranged between the water inlet and the water inlet one-way valve, the water inlet one-way valve is provided with a water inlet hole for water to flow into, the water inlet is formed in the top of the transition cavity, the water inlet hole is formed in the bottom of the transition cavity, a water stop plate is further arranged in the transition cavity, and a plurality of evenly-distributed water guide holes are formed in the water stop plate. And the water guide hole, the water inlet hole and the water inlet are mutually staggered in the horizontal direction. The utility model has the advantages of simple structure and low noise.

Description

TECHNICAL FIELD

[0001] The utility model relates to water pump technical field especially relates to a noise reduction structure for water pump. BACKGROUND

[0002] The conventional diaphragm water pump usually includes a water inlet, a water inlet cavity, a water outlet cavity and a water outlet, a plurality of water inlet check valves are arranged between the water inlet and the water inlet cavity, a motor is arranged in the water inlet cavity, and a water outlet check valve is arranged between the water inlet cavity and the water outlet cavity.

[0003] Specifically, first, due to the uneven distribution of the positions of the water inlet check valves, the valves close to the water inlet are directly exposed to the high-pressure water flow, causing the water flow to pass through these valves first, thereby causing uneven distribution of the flow.

[0004] In addition, during the water inlet process, the uneven distribution of the water flow also causes obvious flow noise.

[0005] Therefore, it is necessary to further improve and perfect the prior art to overcome these shortcomings, and the utility model is made based on this situation. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at overcoming the deficiencies of the prior art, and provides a noise reduction structure for water pump, which is simple in structure and low in noise.

[0007] The utility model is implemented through the following technical solutions:

[0008] To solve the above technical problems, the utility model provides a noise reduction structure for water pump, which comprises a pump head shell, a water inlet, a water inlet cavity, a water outlet cavity and a water outlet are arranged in the pump head shell, a plurality of water inlet check valves are arranged between the water inlet and the water inlet cavity, a driving device for driving the cavity diaphragm to expand and contract to pump water is arranged in the water inlet cavity, and a water outlet check valve is arranged between the water inlet cavity and the water outlet cavity.

[0009] The transition cavity is arranged between the water inlet and the water inlet one-way valve, the water inlet one-way valve is provided with a water inlet hole for water inflow, the water inlet is located at the top of the transition cavity, the water inlet hole is located at the bottom of the transition cavity, a water baffle is further arranged in the transition cavity, the water baffle is provided with a plurality of uniformly distributed water guide holes, and the water guide holes, the water inlet hole and the water inlet are staggered in the horizontal direction.

[0010] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of for the noise reduction structure of water pump, the water baffle is annular and its inner and outer edges are all provided with the reinforcing bending part bent downward.

[0011] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of for the noise reduction structure of water pump, the water baffle is annular and its inner and outer edges are all provided with the reinforcing bending part bent downward.

[0012] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of for the noise reduction structure of water pump, the water baffle is annular and its inner and outer edges are all provided with the reinforcing bending part bent downward.

[0013] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of for the noise reduction structure of water pump, the water baffle is annular and its inner and outer edges are all provided with the reinforcing bending part bent downward.

[0014] Compared with prior art, the utility model has the following advantages:

[0015] The main innovation of the utility model is the design of transition cavity and water baffle, by the transition cavity arranged between the water inlet and the water inlet one-way valve and the water baffle with water guide hole, the uniform distribution of water flow is realized, and the noise is reduced.This structure not only improves the working efficiency and stability of pump, but also prolongs service life, while maintaining the simplicity and economy of structure. BRIEF DESCRIPTION OF DRAWINGS

[0016] The specific embodiment of the utility model is further described in detail below in combination with the drawings, wherein:

[0017] Figure 1 is the exploded schematic view of the utility model;

[0018] Figure 2 is Figure 1 the local enlarged view of A in Fig.

[0019] Figure 3is a top view of the utility model;

[0020] Figure 4 is Figure 3 a sectional view at B-O-B. DETAILED DESCRIPTION

[0021] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model is further explained in detail below in combination with the drawings and specific embodiments.

[0022] As Figures 1 to 4 shown, the utility model discloses a kind of noise reduction structure for water pump, including pump head casing 1, water inlet 11, water inlet cavity 12, water outlet cavity 13 and water outlet 14 are equipped in the pump head casing 1, a plurality of water inlet check valve 2 are equipped between water inlet 11 and water inlet cavity 12, of course, water inlet check valve 2 is equipped with water inlet hole 21 for water flow to enter therein.The water inlet cavity 12 is equipped with driving device 3 (for example motor, this is prior art, here no longer repeat) for driving its cavity membrane expansion and contraction to pump water between water inlet cavity 12 and water outlet cavity 13, and water outlet check valve 4 is equipped.

[0023] The main innovation of the utility model is the setting of transition cavity 15 and water baffle 5.Specifically, water inlet 11 and water inlet check valve 2 are equipped with transition cavity 15 between them.Water inlet 11 is located at the top of transition cavity 15, and water inlet hole 21 is located at the bottom of transition cavity 15.Water baffle 5 is equipped in transition cavity 15, and a plurality of evenly distributed water guide holes 51 are equipped on water baffle 5, and these water guide holes 51 are staggered with water inlet hole 21 and water inlet 11 in horizontal direction.

[0024] This structure design makes water flow more evenly through each water inlet check valve 2, thereby effectively reducing noise.Specifically, the water flow entering transition cavity 15 from water inlet 11 is first blocked and divided by water baffle 5.This process makes water flow evenly distributed in the upper part of transition cavity 15, and then these water flows are collected into each water guide hole 51 respectively.Then, water flow flows into the lower part of transition cavity 15 through these water guide holes 51, and finally enters each water inlet check valve 2.Due to this design, the water flow through each water inlet check valve 2 is almost the same, thereby ensuring the uniformity and stability of water flow.

[0025] This innovative design effectively solves the problem of uneven water flow in traditional structure, not only reduces noise during operation, but also improves the overall performance and service life of the pump.Meanwhile, this structure is simple and efficient, and will not significantly increase manufacturing cost, is a practical and economical improvement scheme.

[0026] Further, in order to strengthen the structural strength of the water-proof plate 5, the water-proof plate 5 is annular, and the inner and outer edges of the water-proof plate 5 are provided with downwardly bent reinforcing bent portions 52. This design improves the strength of the water-proof plate, so that the water-proof plate can withstand greater water flow pressure without deforming.

[0027] In order to further strengthen the structural strength of the water-proof plate 5 and prolong its service life, the water-proof plate 5 is further provided with stepped reinforcing ribs 53. These reinforcing ribs not only enhance the rigidity of the water-proof plate, but also improve its impact resistance.

[0028] In order to facilitate the installation of the water-proof plate 5, the water inlet one-way valve 2 is provided with a column 22 in the middle, and the water-proof plate 5 is provided with a mounting hole 54 for sleeving on the column 22. This design simplifies the installation process of the water-proof plate and improves the assembly efficiency.

[0029] From the aspect of structural assembly, the pump head shell 1 comprises an upper cover 1a, a valve seat 1b and a bottom diaphragm 1c arranged in sequence from top to bottom. The water inlet 11 and the water outlet 14 are arranged in the upper cover 1a, the water inlet cavity 12 is formed between the valve seat 1b and the bottom diaphragm 1c, the water outlet cavity 13 is formed between the middle of the valve seat 1b and the middle of the upper cover 1a (the middle of the bottom surface of the upper cover 1a is provided with an annular boss), and the annular transition cavity 15 is formed between the periphery of the valve seat 1b and the periphery of the upper cover 1a. This structure not only makes the assembly of the water pump more convenient, but also improves the overall sealing performance and stability.

Claims

1. A noise reduction structure for a water pump, comprising a pump head housing (1), wherein the pump head housing (1) is provided with an inlet (11), an inlet chamber (12), an outlet chamber (13), and an outlet (14), wherein a plurality of inlet check valves (2) are provided between the inlet (11) and the inlet chamber (12), wherein the inlet chamber (12) is provided with a drive device (3) for driving its diaphragm to expand and contract to pump water, and wherein an outlet check valve (4) is provided between the inlet chamber (12) and the outlet chamber (13), characterized in that: A transition chamber (15) is provided between the water inlet (11) and the water inlet check valve (2). The water inlet check valve (2) is provided with a water inlet hole (21) for water to flow into it. The water inlet (11) is located at the top of the transition chamber (15), and the water inlet hole (21) is located at the bottom of the transition chamber (15). A water baffle plate (5) is also provided in the transition chamber (15). The water baffle plate (5) is provided with several evenly distributed water guide holes (51), and the water guide holes (51), water inlet hole (21), and water inlet (11) are staggered in the horizontal direction.

2. The noise reduction structure for a water pump according to claim 1, characterized in that: The water-blocking plate (5) is annular and has a downward-bent reinforcing bend (52) on both its inner and outer edges.

3. A noise reduction structure for a water pump according to claim 1 or 2, characterized in that: The water-blocking plate (5) is provided with stepped reinforcing ribs (53).

4. The noise reduction structure for a water pump according to claim 1, characterized in that: The inlet check valve (2) has a column base (22) in the middle, and the water baffle (5) has mounting holes (54) for fitting onto the column base (22).

5. A noise reduction structure for a water pump according to claim 1, characterized in that: The pump head housing (1) includes an upper cover (1a), a valve seat (1b), and a bottom diaphragm (1c) arranged sequentially from top to bottom. The water inlet (11) and the water outlet (14) are located inside the upper cover (1a). The water inlet cavity (12) is formed between the valve seat (1b) and the bottom diaphragm (1c). The water outlet cavity (13) is formed between the middle part of the valve seat (1b) and the middle part of the upper cover (1a). An annular transition cavity (15) is formed between the periphery of the valve seat (1b) and the periphery of the upper cover (1a).

Images