Low-noise water pump

Abstract

A low-noise water pump relates to the technical field of water pumps. The pump head is provided with a suction channel used for sucking liquid and a discharge channel used for discharging the liquid; the pump body is arranged below the pump head and is used for transferring the liquid in the suction channel into the discharge channel; a noise reduction assembly is arranged in the suction channel and comprises a sealing soft gasket and a covering part, wherein the sealing soft gasket stretches across the inner side of the suction channel and is provided with a communicating hole, and the covering part is arranged above the sealing soft gasket and used for abutting against the communicating hole. In the no-load state, air can pass through a small gap between the covering part and the communicating hole, and noise generated when the air passes through can be reduced; during loading, liquid can downwards extrude the sealing soft gasket and enable the sealing soft gasket to deform, the liquid can pass through the larger communicating hole, and the flow of the water pump is not affected. The technical scheme has the advantages of low operation noise and large flow.

Description

Technical Field

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

[0002] A water pump is a device for conveying liquid or increasing the pressure of liquid. When working, it sucks in liquid, transfers the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid, and then discharges it to convey the liquid. For example, a vane water pump generates high pressure under the centrifugal force of the blades, and a positive displacement water pump uses the change in the volume of its working chamber to transfer energy and form high pressure. Regardless of the type of water pump, the water it inhales is mixed with vibration noise due to the high pressure, which will cause noise to invade the working environment of the water pump, interfere with and damage the hearing of the operator, and even penetrate the wall to cause noise pollution to the nearby area. However, the working noise of the water pump in the prior art is still relatively large, especially when the water pump is just started or when the water pump is idling, the air flowing through the inside of the water pump will generate a lot of noise, affecting the operation effect, and it is urgently needed to be improved. Utility Model Content

[0003] The utility model aims to provide a low-noise water pump with the advantages of low noise and large flow rate in view of the defects and shortcomings of the prior art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a low-noise water pump, comprising:

[0005] A pump head, the pump head is provided with a suction channel for sucking liquid and a discharge channel for discharging liquid; a pump body is arranged below the pump head and is used to transfer the liquid in the suction channel to the discharge channel;

[0006] A noise reduction component is arranged in the suction channel, and the noise reduction component includes: a sealing gasket spanning the inner side of the suction channel and provided with a connecting hole, and a covering member arranged above the sealing gasket and used to resist the connecting hole; when unloaded, air will pass through the tiny gap between the covering member and the connecting hole, which can reduce the noise when the air passes through; when loaded, the liquid will squeeze the sealing gasket downward and deform the sealing gasket, and the liquid can pass through the larger connecting hole without affecting the flow rate of the water pump.

[0007] The utility model is further arranged that the communicating holes are arranged in a strip shape.

[0008] The utility model is further configured that a plurality of communicating holes are provided.

[0009] The utility model is further arranged that the discharge channel is arranged in the middle of the pump head, and the suction channel is arranged in an annular shape on the peripheral side of the discharge channel.

[0010] The utility model is further arranged that the sealing gasket is arranged in a ring shape, and a plurality of the communicating holes are arranged and evenly distributed along the ring shape on the sealing gasket.

[0011] The utility model is further arranged that a suction noise reduction plate is arranged in the suction channel, and a plurality of throttling holes are arranged on the suction noise reduction plate.

[0012] The utility model is further arranged that a discharge noise reduction plate is arranged in the discharge channel, and a plurality of throttling holes are arranged on the discharge noise reduction plate.

[0013] The utility model is further configured that the pump body is configured as a diaphragm pump body, and the diaphragm pump body comprises:

[0014] The valve plate is provided with a suction hole communicating with the suction channel, a discharge hole communicating with the discharge channel, and a one-way valve group provided on the suction hole and the discharge hole.

[0015] A plurality of diaphragms, wherein a valve cavity is formed between the diaphragms and the valve plate,

[0016] a movable member connected to the diaphragm and capable of stretching or squeezing the diaphragm; when the movable member stretches the diaphragm to enlarge the valve cavity, liquid is sucked into the valve cavity from the suction hole; when the movable member squeezes the diaphragm to shrink the valve cavity, liquid in the valve cavity is discharged from the discharge hole;

[0017] The driving member cooperates with the movable member in transmission and sequentially stretches and squeezes the diaphragm.

[0018] The utility model is further arranged that the one-way valve group includes: a suction valve arranged on the suction hole, when the movable part stretches the diaphragm, the suction valve opens the suction hole, and when the movable part compresses the diaphragm, the suction valve closes the suction hole; the valve plate is provided with a first curved surface facing the suction valve, and the suction valve is provided with a second curved surface matching the first curved surface.

[0019] The utility model is further arranged that the one-way valve group includes: a discharge valve arranged on the discharge hole, when the movable part stretches the diaphragm, the discharge valve closes the discharge hole, and when the movable part compresses the diaphragm, the discharge valve opens the discharge hole; the valve plate is provided with a third arc surface facing the discharge valve, and the discharge valve is provided with a fourth arc surface matching the third arc surface.

[0020] After adopting the above technical solution, the beneficial effects of the utility model are:

[0021] 1. In the utility model, a noise reduction component is provided on the inner side of the suction channel to reduce the noise when the water pump is working and ensure a good working environment for the water pump. The noise reduction component includes: a sealing gasket and a covering part. When the water pump is just started or the water pump is unloaded, the air in the suction channel will flow from the top of the sealing gasket to the bottom of the sealing gasket through the tiny gap between the covering part and the connecting hole under the action of the pump head. The air flow channel is small, which can effectively reduce the noise of air passing through, improve the use experience of the water pump, and ensure a good working environment for the water pump. When the water pump is under normal load, the liquid above the sealing gasket in the suction channel will squeeze the sealing gasket downward, causing the sealing gasket to deform downward to a certain extent, so that the gap between the covering part and the connecting hole becomes larger, and the liquid can pass smoothly through the larger connecting hole, ensuring that the liquid can quickly pass through the sealing gasket without affecting the flow of the water pump, and can have a larger liquid flow.

[0022] 2. In the utility model, a plurality of connecting holes are provided on the sealing gasket, so that liquid or air can pass through the plurality of connecting holes on the sealing gasket, thereby ensuring the flow of the suction channel and ensuring the good working effect of the water pump. The connecting holes are arranged in a long strip shape, and when the liquid squeezes the sealing gasket, the peripheral position of the connecting holes on the sealing gasket is more likely to produce a large deformation, so that the liquid has a large space to be sucked under the sealing gasket, so that the liquid can pass quickly in the suction channel and ensure the liquid flow of the water pump.

[0023] 3. In the utility model, a suction noise reduction plate is also arranged in the suction channel, and the suction noise reduction plate also spans the inner side of the suction channel. A plurality of throttling holes are arranged on the suction noise reduction plate, so that when liquid or air passes through the suction noise reduction plate, it will be diverted to each throttling hole to pass through, thereby reducing the noise of liquid or air flowing in the suction channel. At the same time, the setting of multiple throttling holes reduces the influence of the suction noise reduction plate on the suction flow, thereby ensuring the good operation effect of the water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 It is a structural schematic diagram of the utility model;

[0026] Figure 2 It is a schematic diagram of the structure explosion of the utility model;

[0027] Figure 3 It is a schematic diagram of the structure explosion of the pump head of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure explosion of the pump head of the utility model from another perspective;

[0029] Figure 5 It is a schematic diagram of the explosion structure of the pump body of the utility model;

[0030] Figure 6 It is a schematic diagram of the structure explosion of the valve plate of the utility model;

[0031] Figure 7 It is a schematic diagram of the structure explosion of the valve plate of the utility model from another perspective.

[0032] Explanation of the reference numerals: 1. Pump head; 2. Pump body; 3. Suction channel; 4. Discharge channel; 51. Sealing gasket; 52. Cover; 511. Connecting hole; 53. Suction noise reduction plate; 54. Discharge noise reduction plate; 55. Throttling hole; 6. Valve plate; 7. Diaphragm; 8. Movable part; 9. Driving part; 61. Suction hole; 62. Discharge hole; 64. Suction valve; 611. First arc surface; 612. Second arc surface; 65. Discharge valve; 613. Third arc surface; 614. Fourth arc surface. DETAILED DESCRIPTION

[0033] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0034] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0035] This embodiment relates to a low noise water pump, such as Figure 1-7 As shown, it includes: a pump head 1 and a pump body 2.

[0036] Among them, a suction channel 3 for sucking liquid and a discharge channel 4 for discharging liquid are provided on the pump head 1; the pump body 2 is the power device of the water pump, which is arranged below the pump head 1. The pump body 2 can suck the liquid in the suction channel 3 on the pump head 1 into the pump body 2, and then discharge the liquid from the discharge channel 4, thereby realizing the transfer and transportation of the liquid.

[0037] A noise reduction component is arranged on the inner side of the suction channel 3 to reduce the noise when the water pump is working and ensure a good working environment for the water pump. The noise reduction component includes: a sealing gasket 51 and a cover 52. Among them, the sealing gasket 51 spans the inner side of the suction channel 3, and a connecting hole 511 is arranged above the sealing gasket 51, so that the liquid or gas in the suction channel 3 can only pass through the connecting hole 511 on the sealing gasket 51; the cover 52 is arranged above the sealing gasket 51, and is used to resist the connecting hole 511 on the sealing gasket 51. When the water pump is just started or the water pump is unloaded, the air in the suction channel 3 will flow from the top of the sealing gasket 51 through the small gap between the cover 52 and the connecting hole 511 to the bottom of the sealing gasket 51 under the action of the pump head 1. The air flow channel is small, which can effectively reduce the noise of air passing through, improve the use experience of the water pump, and ensure a good working environment of the water pump. When the water pump is under normal load, the liquid above the sealing gasket 51 in the suction channel 3 will squeeze the sealing gasket 51 downward, causing the sealing gasket 51 to deform downward to a certain extent, so that the gap between the cover 52 and the connecting hole 511 becomes larger, and the liquid can pass smoothly through the larger connecting hole 511, ensuring that the liquid can quickly pass through the sealing gasket 51, without affecting the flow rate of the water pump, and having a larger liquid flow rate.

[0038] In this embodiment, a plurality of connecting holes 511 are provided on the sealing gasket 51, so that liquid or air can pass through the plurality of connecting holes 511 on the sealing gasket 51, thereby ensuring the flow of the suction channel 3 and ensuring the good working effect of the water pump. As a preferred solution, the connecting holes 511 are arranged in a long strip shape. When the liquid squeezes the sealing gasket 51, the peripheral position of the connecting holes 511 on the sealing gasket 51 is more likely to produce a large deformation, so that the liquid has a large space to be sucked under the sealing gasket 51, so as to realize the rapid passage of the liquid in the suction channel 3 and ensure the liquid flow of the water pump. Of course, in other embodiments, only one connecting hole 511 may be provided, or it may be arranged in other shapes to ensure the good permeability of the liquid in the suction channel 3.

[0039] As a preferred solution, the discharge channel 4 is longitudinally arranged in the middle of the pump head 1, and the suction channel 3 is annularly arranged on the peripheral side of the pump head 1, and arranged around the discharge channel 4, so that the suction channel 3 is larger, which can ensure that the water pump has sufficient liquid suction, and the discharge channel 4 is smaller, which can increase the pressure of liquid discharge, increase the flow rate and pressure of the liquid transported by the water pump, and achieve good working effect. In this embodiment, the sealing gasket 51 is set to be annular, spanning the inner side of the suction channel 3, and there are multiple connecting holes 511 on the four limbs, which are evenly distributed along the ring on the sealing gasket 51 to achieve a good liquid passage effect.

[0040] In this embodiment, a suction noise reduction plate 53 is also provided in the suction channel 3, and the suction noise reduction plate 53 also spans the inner side of the suction channel 3. A plurality of throttling holes 55 are provided on the suction noise reduction plate 53, so that when liquid or air passes through the suction noise reduction plate 53, it will be diverted to each throttling hole 55 to pass through, thereby reducing the noise of liquid or air flowing in the suction channel 3. At the same time, the provision of a plurality of throttling holes 55 reduces the influence of the suction noise reduction plate 53 on the suction flow rate, thereby ensuring a good operation effect of the water pump. As a preferred solution, the suction noise reduction plate 53 is provided above the cover 52, and is integrally formed with the cover 52, so as to achieve a good installation and operation effect, and avoid the suction noise reduction plate 53 colliding with the noise reduction component when the water pump is working, thereby causing wear of parts and generating necessary noise, thereby achieving a good operation effect.

[0041] As a preferred solution, a discharge noise reduction plate 54 is provided in the discharge channel 4. The discharge noise reduction plate 54 spans the inner side of the discharge channel 4. A plurality of throttling holes 55 are provided on the discharge noise reduction plate 54, so that when liquid or air passes through the discharge noise reduction plate 54, it will be diverted to each throttling hole 55 to pass through, thereby reducing the noise of the liquid or air flowing in the discharge channel 4. At the same time, the setting of multiple throttling holes 55 reduces the influence of the discharge noise reduction plate 54 on the discharge flow, thereby ensuring the good operation effect of the water pump.

[0042] In the present embodiment, the pump body 2 is configured as a diaphragm pump body 2, and the diaphragm pump body 2 includes: a valve plate 6, a diaphragm 7, a movable part 8 and a driving part 9; wherein the valve plate 6 is arranged at the uppermost end of the pump body 2 and connected to the pump head 1, and a suction hole 61 communicating with the suction channel 3, a discharge hole 62 communicating with the discharge channel 4, and a one-way valve group arranged on the suction hole 61 and the discharge hole 62 on the valve plate 6 are arranged to achieve the connection between the pump head 1 and the pump body 2 and limit the flow direction of the liquid in the water pump, so that the pump body 2 can only absorb the liquid from the suction channel 3 and can only discharge the liquid to In the discharge channel 4, the normal operation and efficiency of the water pump are ensured; the diaphragm 7 is arranged below the valve plate 6, and a valve cavity is formed between the diaphragm 7 and the valve plate 6; the movable part 8 is arranged below the diaphragm 7 and connected to the diaphragm 7, so that the movable part 8 can stretch or squeeze the diaphragm 7; when the movable part 8 stretches the diaphragm 7, the valve cavity becomes larger, so that liquid is sucked into the valve cavity from the suction hole 61, and when the movable part 8 squeezes the diaphragm 7, the valve cavity becomes smaller, so that the liquid in the valve cavity is discharged from the discharge hole 62. Through the action of the movable part 8, the water pumping effect of the water pump is achieved, and the liquid delivery and transfer are completed. The driving part 9 is arranged below the movable part 8 and cooperates with the movable part 8 in transmission, so that the movable part 8 can sequentially stretch and squeeze the diaphragm 7 to achieve a continuous and efficient water pumping effect and ensure the operation effect of the water pump.

[0043] In this embodiment, the one-way valve group includes: a suction valve 64 arranged on the suction hole 61; when the movable part 8 stretches the diaphragm 7, the suction valve 64 will open the suction hole 61, so that the pump body 2 can suck the liquid in the suction channel 3 into the pump cavity through the suction hole 61 to maintain the normal operation of the water pump; and when the movable part 8 compresses the diaphragm 7, the suction valve 64 will close the suction hole 61 to avoid squeezing the liquid in the pump cavity into the suction channel 3, so as to ensure the correct flow direction of the liquid in the water pump. A first arc surface 611 facing the suction valve 64 is arranged on the valve plate 6, and a second arc surface 612 matching the first arc surface 611 is arranged on the suction valve 64. When the suction valve 64 is turned from open to closed, the second arc surface 612 is attached to the first arc surface 611 to close the suction port, and the second arc surface 612 will hit the first arc surface 611 to generate a certain noise. Since the first arc surface 611 and the second arc surface 612 are both set as arc surfaces, the noise of this part can be well reduced to ensure the good operation state of the water pump. Moreover, the first curved surface 611 and the second curved surface 612 can also improve the sealing performance of the suction valve 64, achieve a better one-way valve effect, and improve the operating efficiency of the water pump. As a preferred solution, the one-way valve group also includes: a discharge valve 65 arranged on the discharge hole 62; when the movable part 8 stretches the diaphragm 7, the discharge valve 65 will close the discharge hole 62 to avoid sucking the liquid in the discharge channel 4 into the pump cavity, and when the movable part 8 compresses the diaphragm 7, the discharge valve 65 will open the discharge hole 62 to squeeze the liquid in the pump cavity into the discharge channel 4, ensuring the correct flow direction of the liquid in the water pump and achieving good operation. A third curved surface 613 facing the discharge valve 65 is arranged on the valve plate 6, and a fourth curved surface 614 matching the third curved surface 613 is arranged on the discharge valve 65. The arrangement of the third curved surface 613 and the fourth curved surface 614 can reduce the noise of the opening and closing of the discharge valve 65, while improving the sealing effect of the discharge valve 65, and optimizing the operating stability and efficiency of the water pump.

[0044] The above is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A low noise water pump, comprising: A pump head (1), wherein the pump head (1) is provided with a suction channel (3) for sucking liquid and a discharge channel (4) for discharging liquid; a pump body (2), which is arranged below the pump head (1) and is used to transfer the liquid in the suction channel (3) to the discharge channel (4); characterized in that: A noise reduction component is provided in the suction channel (3), and the noise reduction component comprises: a sealing gasket (51) spanning the inner side of the suction channel (3) and provided with a connecting hole (511), and a covering member (52) provided above the sealing gasket (51) and used to abut against the connecting hole (511); when unloaded, air will pass through a small gap between the covering member (52) and the connecting hole (511), thereby reducing the noise generated when the air passes through; when loaded, liquid will press the sealing gasket (51) downward and deform the sealing gasket (51), and the liquid can pass through the connecting hole (511) without affecting the flow rate of the water pump.

2. The low noise water pump according to claim 1, characterized in that: The communicating holes (511) are arranged in a strip shape.

3. The low noise water pump according to claim 1, characterized in that: The communicating holes (511) are provided in plurality.

4. The low noise water pump according to claim 1, characterized in that: The discharge channel (4) is arranged in the middle of the pump head (1), and the suction channel (3) is arranged in an annular shape on the peripheral side of the discharge channel (4).

5. The low noise water pump according to claim 4, characterized in that: The sealing gasket (51) is arranged in a ring shape, and a plurality of the communicating holes (511) are arranged and evenly distributed along the ring shape on the sealing gasket (51).

6. The low noise water pump according to claim 1, characterized in that: A suction noise reduction plate (53) is arranged in the suction channel (3), and a plurality of throttling holes (55) are arranged on the suction noise reduction plate (53).

7. The low noise water pump according to claim 2, characterized in that: A discharge noise reduction plate (54) is arranged in the discharge channel (4), and a plurality of throttling holes (55) are arranged on the discharge noise reduction plate (54).

8. The low noise water pump according to claim 1, characterized in that: The pump body (2) is configured as a diaphragm pump body (2), and the diaphragm pump body (2) comprises: The valve plate (6) is provided with a suction hole (61) communicating with the suction channel (3), a discharge hole (62) communicating with the discharge channel (4), and a one-way valve group provided on the suction hole (61) and the discharge hole (62). A plurality of diaphragms (7), wherein a valve cavity is formed between the diaphragms (7) and the valve plate (6), a movable member (8) connected to the diaphragm (7) and capable of stretching or squeezing the diaphragm (7); when the movable member (8) stretches the diaphragm (7) to enlarge the valve cavity, liquid is sucked into the valve cavity from the suction hole (61); and when the movable member (8) squeezes the diaphragm (7) to shrink the valve cavity, liquid in the valve cavity is discharged from the discharge hole (62); The driving member (9) cooperates with the movable member (8) in transmission and sequentially stretches and squeezes the diaphragm (7).

9. The low noise water pump according to claim 8, characterized in that: The one-way valve group comprises: a suction valve (64) arranged on the suction hole (61); when the movable part (8) stretches the diaphragm (7), the suction valve (64) opens the suction hole (61); when the movable part (8) compresses the diaphragm (7), the suction valve (64) closes the suction hole (61); the valve plate (6) is provided with a first curved surface (611) facing the suction valve (64); and the suction valve (64) is provided with a second curved surface (612) matching the first curved surface (611).

10. The low noise water pump according to claim 8, characterized in that: The one-way valve group comprises: a discharge valve (65) arranged on the discharge hole (62); when the movable part (8) stretches the diaphragm (7), the discharge valve (65) closes the discharge hole (62); when the movable part (8) compresses the diaphragm (7), the discharge valve (65) opens the discharge hole (62); the valve plate (6) is provided with a third curved surface (613) facing the discharge valve (65); and the discharge valve (65) is provided with a fourth curved surface (614) matching the third curved surface (613).

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