Silent water pump

Abstract

The application discloses a mute water pump, which comprises a water inlet pipe, a water inlet cavity, a water outlet cavity and a water outlet pipe, a first one-way valve is arranged between the water inlet pipe and the water inlet cavity, a second one-way valve is arranged between the water inlet cavity and the water outlet cavity, a driving device is arranged in the water inlet cavity, the water outlet cavity and the water outlet pipe are communicated and a noise reduction and shock absorption structure is arranged between the water outlet cavity and the water outlet pipe; the noise reduction and shock absorption structure comprises a water baffle and a partition cover which are arranged in the water outlet cavity from bottom to top, the water outlet cavity is divided into a lower cavity, a middle cavity and an upper cavity by the water baffle and the partition cover, and the outlet of the second one-way valve is located at the bottom of the lower cavity; a first water outlet gap which is communicated with the lower cavity and the middle cavity is arranged between the side surface of the water baffle and the side wall of the lower cavity; the partition cover is in the shape of a cap which is convex upward, a plurality of second water outlet gaps which are communicated with the middle cavity and the upper cavity are arranged on the side wall of the partition cover, and the second water outlet gaps are opposite to the side wall of the upper cavity; and the upper cavity is communicated with the water outlet pipe. The mute water pump has the advantages of good noise reduction and shock absorption effects.

Description

Technical Field

[0001] This invention relates to the field of water pump technology, and in particular to a silent water pump. Background Technology

[0002] In modern water pump applications, noise and vibration have become significant factors affecting performance and user experience. Conventional water pumps, due to their high internal fluid velocity, drastic pressure changes, and turbulence, often generate considerable noise and vibration during operation. As the fluid passes through different parts of the pump body, especially at the outlet, complex flow patterns easily form. The rapid acceleration and deceleration of the fast-flowing liquid at the outlet causes localized pressure fluctuations, leading to noise and vibration. Traditional water pumps often lack effective vibration damping and noise reduction measures, making it difficult to control noise and vibration levels during long-term operation. This not only affects the pump's lifespan but may also negatively impact the surrounding environment and human health.

[0003] Therefore, it is necessary to further improve and refine the existing technology to overcome these shortcomings, and this invention is made based on this situation. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a silent water pump with good noise reduction and vibration reduction effects.

[0005] This invention is achieved through the following technical solution:

[0006] To solve the above-mentioned technical problems, the present invention provides a silent water pump, including an inlet pipe, an inlet chamber, an outlet chamber, and an outlet pipe. A first one-way valve is provided between the inlet pipe and the inlet chamber to allow water to enter the inlet chamber in one direction. A second one-way valve is provided between the inlet chamber and the outlet chamber to allow water to enter the outlet chamber in one direction. The inlet chamber is provided with a drive device for expanding and contracting to pump water. The outlet chamber and the outlet pipe are connected and a noise reduction and vibration damping structure is provided between them.

[0007] The noise reduction and vibration damping structure includes a baffle plate and a partition cover arranged sequentially from bottom to top in the water outlet chamber. The water outlet chamber is divided into a lower chamber, a middle chamber, and an upper chamber by the baffle plate and the partition cover. The outlet of the second one-way valve is located at the bottom of the lower chamber. A first water outlet gap connecting the lower chamber and the middle chamber is provided between the side of the baffle plate and the side wall of the lower chamber. The partition cover is a cap-shaped structure that protrudes upwards. Several second water outlet gaps connecting the middle chamber and the upper chamber are provided on the side wall of the partition cover, and the second water outlet gaps face the side wall of the upper chamber. The upper chamber is connected to the water outlet pipe.

[0008] To further address the technical problem to be solved by the present invention, the present invention provides a silent water pump in which a retaining ring is provided around the baffle plate and abuts against the side wall of the lower cavity, and the first water outlet gap includes an upper groove, a side groove and a lower groove sequentially provided on the upper side, the outer side wall and the lower side of the retaining ring.

[0009] To further address the technical problem to be solved by this invention, the present invention provides a silent water pump in which a third water outlet gap is provided in the middle of the baffle plate, connecting the lower chamber and the middle chamber.

[0010] To further solve the technical problem to be solved by the present invention, the present invention provides a silent water pump in which a support column extending from its top to a second one-way valve is provided in the middle of the central cavity, and a through hole for the support column to pass through is provided in the middle of the baffle plate. The through hole is larger than the diameter of the support column so as to form the third water outlet gap between the two.

[0011] In order to further solve the technical problem to be solved by the present invention, the present invention provides a silent water pump in which the side wall of the upper cavity is provided with an outlet leading to the water outlet pipe, and each second water outlet gap is offset from the water outlet in the circumferential direction.

[0012] To further solve the technical problem to be solved by the present invention, the present invention provides a silent water pump in which a partition is provided between the outer wall of the partition cover and the inner wall of the upper cavity to separate the water outlet and the second water outlet gap, and the water coming out of the second water outlet gap can only flow into the water outlet after overflowing the partition.

[0013] To further address the technical problem to be solved by the present invention, the present invention provides a silent water pump in which the noise reduction and vibration damping structure further includes a buffer pad disposed at the top of the upper cavity, the buffer pad being elastic.

[0014] To further address the technical problem to be solved by the present invention, the present invention provides a silent water pump in which the lower surface of the buffer pad is a downwardly convex honeycomb shape and includes several buffer facets.

[0015] To further address the technical problems to be solved by this invention, the present invention provides a silent water pump in which each of the buffer surfaces is one or more of a convex surface, a concave surface, and a plane.

[0016] To further solve the technical problem to be solved by the present invention, the present invention provides a silent water pump in which the top of the upper cavity is provided with an opening, a top cover is installed at the opening and located above the buffer pad, and the top cover presses the periphery of the buffer pad firmly, and the top surface of the buffer pad is provided with a number of support pillars that can contact the top cover.

[0017] To further address the technical problem to be solved by this invention, the present invention provides a silent water pump in which the widths of the first water outlet gap, the second water outlet gap, and the third water outlet gap are all 0.1mm-1mm.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. The baffle and partition cover divide the water outlet chamber into a lower chamber, a middle chamber and an upper chamber, forming a multi-layered water flow transition area. The baffle and partition cover can block the impact of the water flow, slow down the water flow velocity, and make the water flow evenly distributed, which helps to alleviate the vibration and noise that may be generated when the water flows between different chambers.

[0020] 2. The first water outlet gap on the side of the baffle plate and the third water outlet gap in the middle of the baffle plate allow water to smoothly transition from the lower chamber to the middle chamber. This design not only reduces the impact force of the water flow and lowers the flow velocity, but also reduces vibration and noise generated during the flow process. By refining the water flow in this way, the water pump can maintain a more stable state during operation, significantly improving user comfort.

[0021] 3. The partition cover is a convex, cap-shaped structure. The second water outlet gap on its side wall also functions to refine the water flow, allowing the water from the middle cavity to be guided orderly into the upper cavity, effectively reducing eddies and turbulence. It is worth noting that the second water outlet gap faces the side wall of the upper cavity, preventing water from directly rushing out of the water pipe. This design not only reduces the impact force of the water flow but also helps reduce the noise generated when water enters the outlet pipe, further improving the quietness effect.

[0022] 4. The lower surface of the buffer pad adopts a honeycomb structure. This structure not only improves the overall strength of the buffer pad but also more effectively disperses and absorbs impact force. The honeycomb design allows the buffer pad to transmit pressure more evenly when subjected to water flow impact, further enhancing its shock absorption effect. Through this design, the buffer pad not only improves the durability of the water pump but also maintains good performance during long-term operation. Attached Figure Description

[0023] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 This is an exploded view of the present invention;

[0026] Figure 3 This is a cross-sectional view of the present invention;

[0027] Figure 4 yes Figure 3 Enlarged view of a portion of point A in the middle;

[0028] Figure 5 This is a three-dimensional structural diagram of the water baffle.

[0029] Figure 6 This is one of the three-dimensional structural diagrams of the water outlet cavity;

[0030] Figure 7 This is the second three-dimensional structural diagram of the water outlet cavity;

[0031] Figure 8 This is a schematic diagram of the three-dimensional structure of the cushioning pad. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] like Figures 1 to 8 The illustrated silent water pump mainly comprises an inlet pipe 1, an inlet chamber 2, an outlet chamber 3, and an outlet pipe 4. This water pump is designed to effectively reduce noise and vibration during operation, improving user comfort and operational stability.

[0034] Regarding the basic working principle of the water pump: A first one-way valve 5 is installed between the inlet pipe 1 and the inlet chamber 2. This valve ensures that water flows unidirectionally into the inlet chamber 2, thus preventing backflow. This one-way valve helps improve the pump's efficiency and ensures smooth water flow into the pump body. Next, a second one-way valve 6 between the inlet chamber 2 and the outlet chamber 3 allows water to flow unidirectionally into the outlet chamber 3, effectively preventing backflow and further ensuring the pump's normal operation. To achieve the pumping function, a drive device 7 (including a motor, diaphragm, transmission structure, etc., which is existing technology and will not be described further) is installed in the inlet chamber 2. This drive device is designed with the pump's efficiency in mind, controlling the expansion and contraction of the inlet chamber to ensure that water is effectively pumped to the outlet chamber 3.

[0035] The innovation of this invention lies in the fact that a noise reduction and vibration damping structure 8 is set between the water outlet chamber 3 and the water outlet pipe 4 to effectively reduce the noise and vibration of the water pump during operation.

[0036] The noise reduction and vibration damping structure 8 includes a baffle plate 81 and a partition cover 82, which are arranged sequentially from bottom to top in the water outlet chamber 3. The purpose of this structure is to effectively reduce the noise and vibration generated during pump operation and improve the stability and smoothness of the water flow. The baffle plate 81 and partition cover 82 divide the water outlet chamber 3 into a lower chamber 31, a middle chamber 32, and an upper chamber 33, forming a multi-layered water flow transition area. The baffle plate 81 and partition cover 82 can block the impact of the water flow, slow down the water flow velocity, and ensure a uniform water flow distribution, thus helping to mitigate the impact, vibration, and noise that may occur when water flows between different chambers.

[0037] The outlet of the second one-way valve 6 is located at the bottom of the lower chamber 31, and the upper chamber 33 is connected to the outlet pipe 4. After entering the lower chamber 31, the water flows upward and sequentially enters the middle chamber 32 and the upper chamber 33. Finally, it is discharged from the outlet pipe 4.

[0038] A first water outlet gap 811 is provided between the side of the baffle plate 81 and the side wall of the lower chamber 31. This gap allows water to smoothly transition from the lower chamber 31 to the middle chamber 32. This design not only reduces the impact force of the water flow and lowers the flow velocity, but also reduces vibration and noise generated during the flow process. By refining the water flow in this way, the water pump can maintain a more stable state during operation, significantly improving user comfort.

[0039] The partition cover 82 is a convex, cap-shaped structure with several second water outlet gaps 821 on its sidewalls. These gaps also function to refine the water flow, allowing the water flow from the middle cavity 32 to be orderly guided into the upper cavity 33, thereby effectively reducing eddies and turbulence. It is worth noting that the second water outlet gaps 821 face the sidewall of the upper cavity 33, preventing water from directly rushing out of the water pipe 4. This design not only reduces the impact force of the water flow but also helps reduce the noise generated when water enters the outlet pipe 4, further improving the noise reduction effect.

[0040] More specifically, the periphery of the baffle plate 81 is provided with a retaining ring 812 that tightly abuts against the side wall of the lower cavity 31. This retaining ring 812 not only provides good fixed support for the baffle plate 81, but also effectively prevents the water flow from generating eddies within the lower cavity 31, ensuring the stability and directionality of the water flow. The upper, outer, and lower sides of the retaining ring 812 have upper grooves 8111, side grooves 8112, and lower grooves 8113, respectively. These grooves cooperate to form a gap that effectively guides the water flow, namely the first water outlet gap 811. The function of this gap is to facilitate the transfer of water flow from the lower cavity 31 to the middle cavity 32.

[0041] Furthermore, the baffle plate 81 has a third water outlet gap 813 in the middle, which connects the lower cavity 31 and the middle cavity 32. The third water outlet gap 813 has the same function as the first water outlet gap 811.

[0042] More specifically, a support column 311 extending from its top to the second one-way valve 6 is provided in the middle of the central cavity 32. This support column 311 provides structural support to ensure the stability of the central cavity 32. To allow the support column 311 to pass smoothly through the baffle plate 81, a through hole 814 is specially designed in the middle of the baffle plate for the support column 311 to pass through. The diameter of the through hole 814 is slightly larger than the diameter of the support column 311. This design ensures that the support column 311 can pass freely through the baffle plate 81 while forming the third water outlet gap 813 between the two. Like the first water outlet gap 811, the third water outlet gap 813 also has the function of refining the water flow. The third water outlet gap 813 also promotes the flow of water from the lower cavity 31 into the central cavity 32, increasing the water outlet efficiency.

[0043] More specifically, the upper cavity 33 has an outlet 331 on its side wall, leading to the water outlet pipe 4. The outlet 331 is positioned on the side wall of the upper cavity 33 primarily to prevent water from being ejected directly from the outlet 331 with high impact force, thereby effectively reducing vibration and noise. This design aims to optimize the water flow trajectory, making it smoother during outflow and avoiding unnecessary noise and mechanical vibration caused by high speed and straight-line impact.

[0044] By placing the water outlet 331 on the side wall, the water flow has a gentler path when flowing out, avoiding direct impact from the water flow onto the outlet 331. This design not only reduces the kinetic energy impact of the water flow but also reduces potential damage to the outlet pipe 4 and other components. Simultaneously, the reduction in vibration and noise makes the equipment quieter during operation, enhancing the user experience.

[0045] Furthermore, each of the second outlet gaps 821 is staggered from the outlet 331 in the circumferential direction. This ingenious staggered design allows the water flow to proceed more smoothly towards the outlet 331 after passing through the second outlet gaps 821, reducing the direct impact and eddy effect between the water flow and the outlet 331. Through this design, the speed and direction of the water flow are effectively regulated as it approaches the outlet 331, thereby reducing the impact force of the water flow on the outlet.

[0046] Furthermore, reducing the impact force also helps to reduce the noise and vibration of the water pump during operation. When the water flows out in a more stable manner, it not only reduces the workload of the water pump, but also significantly improves the operational stability of the equipment. More specifically, a partition 332 is provided between the outer wall of the partition cover 82 and the inner wall of the upper cavity 33 to separate the outlet 331 and the second outlet gap 821, and the water coming out of the second outlet gap 821 can only flow into the outlet 331 after overflowing the partition 332.

[0047] More specifically, a plurality of partitions 332 are provided between the outer wall of the partition cover 82 and the inner wall of the upper cavity 33. The partitions are designed to effectively separate the water outlet 331 from the second water outlet gap 821. The presence of the partitions 332 not only enhances the stability of the structure, but also provides important support for the rational guidance of water flow.

[0048] By isolating the outlet 331 from the second outlet gap 821, the baffle 332 effectively reduces the possibility of water flow directly impacting the outlet 331. After passing through the second outlet gap 821, the water flow first encounters the baffle 332, and the water flow must overflow this baffle before continuing to flow into the outlet 331. This design not only helps to reduce the impact force of the water flow, but also makes the water flow smoother as it enters the outlet 331, effectively reducing noise and vibration caused by impact.

[0049] More specifically, the noise reduction and vibration damping structure 8 also includes a buffer pad 83 located at the top of the upper cavity 33. This buffer pad 83 possesses excellent elastic properties, enabling it to undergo effective elastic deformation when water flows onto its surface, thereby absorbing the impact force from the water flow. This design significantly reduces vibration and noise during equipment operation, ensuring the water pump can operate efficiently in a quieter environment.

[0050] To elaborate further, the lower surface of the buffer pad 83 adopts a honeycomb structure. This structure not only enhances the overall strength of the buffer pad but also more effectively disperses and absorbs impact forces. The honeycomb design allows the buffer pad 83 to transmit pressure more evenly when subjected to water flow impact, further enhancing its shock absorption effect. Through this design, the buffer pad 83 not only improves the durability of the water pump but also maintains good performance during long-term operation.

[0051] The lower surface of the buffer pad 83 protrudes downwards, which increases elasticity, increases contact area, and improves the ability to absorb impact.

[0052] More specifically, the buffer facet 831 can be one or more combinations of convex, planar and concave surfaces.

[0053] First, the convex design effectively guides the water flow outward, increasing the contact area between the water and the buffer surface, thereby reducing the speed and impact force of the water flow. In this way, the instantaneous pressure generated by the water flow during impact can be effectively reduced, thus reducing the impact on the pump structure.

[0054] Secondly, the planar surface design provides a stable contact surface, allowing the water flow to remain relatively evenly distributed as it passes through. This uniformity helps reduce eddies caused by uneven water flow when the water passes through the buffer chamber, thereby further reducing noise and vibration.

[0055] The concave design plays a crucial role in the buffer facet 831, creating a localized low-pressure zone that helps absorb and buffer the energy of the water flow. This shape design alters the water flow path, allowing the kinetic energy of the water to be more fully converted into pressure energy, thereby reducing the speed and impact force of the water upon exiting the surface, achieving an effective buffering effect.

[0056] More specifically, in order to facilitate the disassembly, assembly and replacement of the buffer pad 83, the top of the upper cavity 33 is provided with an opening, and a top cover 333 is installed at the opening, which is located above the buffer pad 83. The top cover 333 presses the periphery of the buffer pad 83 firmly, and the top surface of the buffer pad 83 is provided with several support pillars 832 that can contact the top cover 333.

[0057] More specifically, the widths of the first outlet gap 811, the second outlet gap 821, and the third outlet gap 813 are all between 0.1mm and 1mm. This width range is chosen to fully consider the flow characteristics of the water and their impact on water discharge efficiency and equipment performance. The design of the outlet gap width also takes into account noise and vibration control. A relatively small gap width can reduce the impact force of the water flow to a certain extent, reduce friction between the water flow and the outlet pipe, thereby effectively reducing the noise and vibration generated during equipment operation.

Claims

1. A silent water pump, characterized in that: It includes an inlet pipe (1), an inlet chamber (2), an outlet chamber (3), and an outlet pipe (4). A first one-way valve (5) is provided between the inlet pipe (1) and the inlet chamber (2) to allow water to enter the inlet chamber (2) in one direction. A second one-way valve (6) is provided between the inlet chamber (2) and the outlet chamber (3) to allow water to enter the outlet chamber (3) in one direction. A drive device (7) for driving the expansion and contraction of the inlet chamber (2) to pump water is provided. The outlet chamber (3) and the outlet pipe (4) are connected and a noise reduction and vibration damping structure (8) is provided between them. The noise reduction and vibration damping structure (8) includes a baffle plate (81) and a partition cover (82) arranged sequentially from bottom to top in the water outlet cavity (3). The water outlet cavity (3) is divided into a lower cavity (31), a middle cavity (32) and an upper cavity (33) by the baffle plate (81) and the partition cover (82). The outlet of the second one-way valve (6) is located at the bottom of the lower cavity (31). A first water outlet gap (811) connecting the lower cavity (31) and the middle cavity (32) is provided between the side of the baffle plate (81) and the side wall of the lower cavity (31). The partition cover (82) is a cap-shaped structure that protrudes upward. A plurality of second water outlet gaps (821) connecting the middle cavity (32) and the upper cavity (33) are provided on the side wall of the partition cover (82), and the second water outlet gaps (821) face the side wall of the upper cavity (33). The upper cavity (33) is connected to the water outlet pipe (4).

2. The silent water pump according to claim 1, characterized in that: The baffle plate (81) is provided with a retaining ring (812) around its periphery that abuts against the side wall of the lower cavity (31). The first water outlet gap (811) includes an upper groove (8111), a side groove (8112), and a lower groove (8113) sequentially provided on the upper side, the outer side wall, and the lower side of the retaining ring (812).

3. A silent water pump according to claim 1, characterized in that: The baffle plate (81) has a third water outlet gap (813) in the middle that connects the lower cavity (31) and the middle cavity (32).

4. A silent water pump according to claim 3, characterized in that: The middle cavity (32) is provided with a support column (311) extending from its top to the second one-way valve (6) in the middle, and the baffle plate (81) is provided with a through hole (814) through which the support column (311) passes. The through hole (814) is larger than the diameter of the support column (311) to form the third water outlet gap (813) between them.

5. A silent water pump according to claim 1, characterized in that: The upper cavity (33) has an outlet (331) on its side wall leading to the water outlet pipe (4), and each of the second water outlet gaps (821) is offset from the outlet (331) in the circumferential direction.

6. A silent water pump according to claim 5, characterized in that: A partition (332) is provided between the outer wall of the partition cover (82) and the inner wall of the upper cavity (33) to separate the water outlet (331) and the second water outlet gap (821), and the water coming out of the second water outlet gap (821) can only flow into the water outlet (331) after overflowing the partition (332).

7. A silent water pump according to claim 1, characterized in that: The noise reduction and vibration damping structure (8) also includes a buffer pad (83) disposed on the top of the upper cavity (33), the buffer pad (83) being elastic.

8. A silent water pump according to claim 7, characterized in that: The lower surface of the buffer pad (83) is a downwardly protruding honeycomb shape and includes several buffer facets (831).

9. A silent water pump according to claim 8, characterized in that: Each of the buffer facets (831) is one or more of a convex surface, a concave surface, and a plane.

10. A silent water pump according to claim 7, characterized in that: The upper cavity (33) has an opening at the top, and a top cover (333) is installed at the opening above the buffer pad (83). The top cover (333) presses the periphery of the buffer pad (83). The top surface of the buffer pad (83) is provided with several support pillars (832) that can contact the top cover (333).

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