Low-noise ultrahigh-pressure water pump unit

Abstract

The low-noise ultrahigh-pressure water pump unit comprises a water tank, a power motor and a water pump, the water pump is driven by the power motor to work, a water inlet of the water pump communicates with the water tank, a water outlet of the water pump is connected with a fixing pipe through a water outlet pipe, and the outer wall of the fixing pipe is fixedly connected with a first communicating pipe; a second communicating pipe is fixedly connected to the outer wall of the first communicating pipe, a third communicating pipe is fixedly connected to the outer wall of the second communicating pipe, and a first through hole communicating with the inner wall of the second communicating pipe is formed in the end, away from the fixed pipe, of the first communicating pipe; a second through hole communicated with the third communicating pipe is formed in the end, away from the first through hole, of the second communicating pipe, a water drainage pipe is connected to the end, away from the second through hole, of the third communicating pipe, and the low-noise effect is achieved.

Description

Technical Field

[0001] The invention relates to a water pump, in particular to a low-noise ultra-high pressure water pump unit. Background Art

[0002] At present, a Chinese patent with authorization announcement number CN210106085U discloses a high-pressure water pump system with constant output water pressure, which is provided with a variable frequency motor, a control terminal and a PID control system. The drive shaft of the variable frequency motor is connected to the plunger pump via a universal joint. The control terminal remotely sets the pressure parameters of the PID control system. The PID control system detects the pressure data of the high-pressure pipeline system, and adjusts the power frequency of the variable frequency motor and the output water pressure of the plunger pump according to the pressure parameters and pressure data, thereby making the water pressure of the high-pressure pipeline system constant.

[0003] In this high-pressure water pump system with constant output water pressure, the water outlet of the plunger pump is connected to the high-pressure pipe system. The water flow in the high-pressure pipe system will generate turbulence, resulting in loud noise. Long-term loud noise will cause harm to the human body. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a low-noise ultra-high pressure water pump unit to achieve the purpose of low noise.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a low-noise ultra-high pressure water pump unit, comprising a water tank, a power motor, and a water pump, the water pump being driven by the power motor to work, the water inlet of the water pump being connected to the water tank, the water outlet of the water pump being connected to a fixed pipe through a water outlet pipe, a first connecting pipe being fixedly connected to the outer wall of the fixed pipe, a second connecting pipe being fixedly connected to the outer wall of the first connecting pipe, a third connecting pipe being fixedly connected to the outer wall of the second connecting pipe, a first through hole being formed at one end of the first connecting pipe away from the fixed pipe and connected to the inner wall of the second connecting pipe, a second through hole being formed at one end of the second connecting pipe away from the first through hole and connected to the third connecting pipe, and a drain pipe being connected to one end of the third connecting pipe away from the second through hole.

[0006] To implement the above technical solution, the power motor is started, the water pump works, the water in the water tank enters the water pump, and then enters the fixed pipe from the water outlet pipe, the water flows along the first connecting pipe into the first through hole, and then along the second connecting pipe into the second through hole, and then along the third connecting pipe out of the drain pipe, the water flow is guided by the first connecting pipe, the second connecting pipe and the third connecting pipe to reduce the generation of turbulence, so that the water discharged from the drain pipe can reduce noise.

[0007] As a preferred embodiment of the present invention, a main nozzle and multiple branch nozzles are fixed on the fixed pipe, and the axes of the branch nozzle and the main nozzle are arranged in parallel. A main hole and multiple branch holes are opened on the fixed pipe, one end of the main hole is connected to the water outlet pipe, and the other end of the main hole is connected to the main nozzle, one end of the branch hole is connected to the main hole, and the other end of the branch hole is connected to the branch nozzle, and the multiple branch holes are evenly distributed along the axis of the main hole.

[0008] To implement the above technical solution, water from the main hole is diverted through the branch hole and then injected into the first connecting pipe through the main nozzle and the branch nozzle. The water flow rate is relatively slowed down to reduce noise, and multiple branch nozzles can balance the water flow pressure and reduce the noise caused by pressure changes; at the same time, it can slow down vibration and reduce vibration noise.

[0009] As a preferred solution of the present invention, it also includes a purifier, the water tank is connected to the purifier through a water pipe, and the purifier is connected to the water inlet through a water inlet pipe.

[0010] By implementing the above technical solution, the purifier removes most of the impurities and particles in the water. Impurities and particles will produce friction and impact under high pressure, causing noise. The filtered water is purer to reduce friction and impact noise; at the same time, it can enhance the protection of the water pump.

[0011] As a preferred solution of the present invention, the fixed pipe includes a first fixed section, a second fixed section and a filter screen, the first fixed section is fixed on the first connecting pipe, the second fixed section is connected to the water outlet pipe, and the filter screen is arranged between the first fixed section and the second fixed section.

[0012] By implementing the above technical solution, water can be purer after being filtered through the filter, thereby further reducing noise.

[0013] As a preferred solution of the present invention, the filter is rotatably connected between the first fixed section and the second fixed section, a brush plate for contacting the surface of the filter is fixedly connected to the inner wall of the second fixed section, a water guide hole is provided at one end of the second connecting tube close to the fixed tube, a paddle is fixedly connected to the edge of the filter, and the water guide hole corresponds to the paddle.

[0014] To implement the above technical solution, part of the water in the second connecting pipe is sprayed out from the water guide hole and drives the filter to rotate rapidly through the blades, and relative rotation occurs between the brush plate and the filter, thereby preventing the filter from being blocked by particulate matter.

[0015] As a preferred solution of the present invention, a driving ring for blocking the water guide hole is rotatably connected to the outer wall of the first connecting pipe, and a connecting hole corresponding to the water guide hole is opened on the driving ring.

[0016] To implement the above technical solution, the driving ring is rotated so that the connecting hole corresponds to the water guide hole, and the water in the second connecting pipe can pass through the water guide hole and then be sprayed out from the connecting hole, so that the filter screen can rotate quickly; the driving ring is rotated so that the connecting hole and the water guide hole are misaligned, and the driving ring can block the water guide hole so that the filter screen cannot rotate, thereby achieving the effect of controlling the rotation and stillness of the filter screen. Since the rotation of the filter screen will generate greater noise in the water, it is necessary to control the rotation of the filter screen.

[0017] As a preferred solution of the present invention, a protective cover is fixedly connected to the outer wall of the first connecting tube, a sealing ring is arranged between the protective cover and the driving ring, a partition is fixedly connected to the inside of the protective cover, a reflux hole corresponding to the water guide hole is opened on the partition, the partition divides the inside of the protective cover into a driving chamber and a water storage chamber, and the paddle is located in the driving chamber.

[0018] To implement the above technical solution, the sealing ring improves the sealing between the driving ring and the protective cover, making it difficult for water to leak out. The driving ring is rotated to make the connecting hole correspond to the water guide hole. Due to the high water pressure, the water flow is conducted almost in a straight line. The water flows out quickly from the connecting hole, rotates the filter screen, passes through the reflux hole, and is injected into the water storage chamber, thereby reducing the waste of water resources.

[0019] As a preferred solution of the present invention, a return pipe is fixedly connected to the water storage chamber, and the return pipe passes through the third connecting pipe and is located in the drainage pipe.

[0020] To implement the above technical solution, the water in the water storage chamber is injected into the drain pipe through the return pipe to utilize the water.

[0021] As a preferred solution of the present invention, a one-way valve is provided at one end of the reflux pipe close to the water storage chamber.

[0022] By implementing the above technical solution, water in the drain pipe cannot enter the water storage chamber.

[0023] As a preferred solution of the present invention, the one-way valve includes a fixed plate, an elastic member, and a sealing plate. The fixed plate is fixed to the inner wall of the reflux pipe, a connecting hole is formed on the fixed plate, a fixing rod is fixedly connected to the fixed plate, the sealing plate is slidably connected to the fixing rod and is used to seal the connecting hole, the two ends of the elastic member are respectively connected to the fixed plate and the sealing plate, and the sealing plate is located on the side of the fixed plate facing the drain pipe.

[0024] To implement the above technical solution, the water in the water storage chamber passes through the connecting hole and lifts up the sealing plate due to the water pressure and gravity, the elastic part is deformed, and the water enters the return pipe; when the water in the return pipe flows toward the water storage chamber, the water flow presses the sealing plate against the fixed plate, and the sealing plate blocks the connecting hole, thereby achieving a one-way flow effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the connection structure between the water pump and the power motor in the present invention; Figure 2 is a cross-sectional schematic diagram showing the first connecting pipe; Figure 3 A cross-sectional schematic diagram showing a fixed pipe; Figure 4 for Figure 3 A magnified image of point A; Figure 5 This is a schematic diagram showing the three-dimensional structure of the blade; Figure 6 A schematic diagram showing the location of the water guide hole; Figure 7 A schematic diagram showing the structure of the drive ring; Figure 8 To show the structural diagram of the protective cover; Fig. 9 This is a schematic diagram showing the structure of the reflux pipe.

[0026] Figure numerals: 11, water tank; 12, power motor; 13, water pump; 2, fixed pipe; 21, first connecting pipe; 22, second connecting pipe; 23, third connecting pipe; 24, first through hole; 25, second through hole; 26, drain pipe; 31, main nozzle; 32, branch nozzle; 33, main hole; 34, branch hole; 41, water pipe; 42, water inlet pipe; 5, purifier; 61, first fixed section; 62, second fixed section; 63, filter; 64, brush plate ; 65. Support rod; 66. Brush; 71. Water guide hole; 72. Paddle; 73. Drive ring; 731. Connecting hole; 74. Sealing ring; 75. Groove; 8. Protective cover; 81. Sealing ring; 82. Partition; 821. Backflow hole; 822. Straight hole; 83. Drive chamber; 84. Water storage chamber; 85. Guide plate; 9. Backflow pipe; 91. One-way valve; 92. Fixed plate; 921. Connecting hole; 93. Elastic member; 94. Sealing plate; 95. Baffle. DETAILED DESCRIPTION

[0027] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0028] A low-noise ultra-high pressure water pump unit comprises a water tank 11, a power motor 12, and a water pump 13. The water pump 13 is a plunger pump and is driven by the power motor 12 to work.

[0029] The water outlet of the water pump 13 is connected to the fixed pipe 2 through the water outlet pipe, and the first connecting pipe 21 is fixedly connected to the outer wall of the fixed pipe 2, and the fixed pipe 2 and the first connecting pipe 21 are coaxially arranged. The second connecting pipe 22 is fixedly connected to the outer wall of the first connecting pipe 21, and the second connecting pipe 22 is coaxially arranged with the first connecting pipe 21. The third connecting pipe 23 is fixedly connected to the outer wall of the second connecting pipe 22, and the third connecting pipe 23 and the second connecting pipe 22 are coaxially arranged.

[0030] A first through hole 24 connected to the inner wall of the second connecting tube 22 is opened at the end of the first connecting tube 21 away from the fixed tube 2, a second through hole 25 connected to the third connecting tube 23 is opened at the end of the second connecting tube 22 away from the first through hole 24, and a drain pipe 26 is connected to the end of the third connecting tube 23 away from the second through hole 25.

[0031] The first through hole 24 and the second through hole 25 are both waist-shaped holes.

[0032] A main nozzle 31 and six branch nozzles 32 are fixed on the fixed pipe 2. The branch nozzles 32 are arranged parallel to the axis of the main nozzle 31, and the six branch nozzles 32 are evenly distributed along the axis of the main nozzle 31. The main nozzle 31 is arranged coaxially with the fixed pipe 2.

[0033] A main hole 33 and six branch holes 34 are provided on the fixed pipe 2. One end of the main hole 33 is connected to the water outlet pipe, and the other end of the main hole 33 is connected to the main nozzle 31. The main hole 33 is coaxially arranged with the fixed pipe 2. One end of the branch hole 34 is connected to the main hole 33, and the other end of the branch hole 34 is connected to the branch nozzle 32. The six branch holes 34 are evenly distributed along the axis of the main hole 33. The branch holes 34 are inclined, and the aperture of the branch holes 34 is smaller than the aperture of the main hole 33.

[0034] The water tank 11 is connected to the purifier 5 through a water conduit 41 , and the purifier 5 is connected to a water inlet of the water pump 13 through a water inlet pipe 42 .

[0035] The fixed pipe 2 includes a first fixed section 61, a second fixed section 62 and a filter 63. The first fixed section 61 is fixed to the first connecting pipe 21, the second fixed section 62 is fixedly connected and connected to the water outlet pipe, and the filter 63 is arranged between the first fixed section 61 and the second fixed section 62.

[0036] The filter screen 63 is rotatably connected between the first fixed section 61 and the second fixed section 62. The first fixed section 61, the filter screen 63 and the second fixed section 62 are coaxially arranged. A brush plate 64 for contacting the surface of the filter screen 63 is fixedly connected to the inner wall of the second fixed section 62. The brush plate 64 includes a support rod 65 and bristles 66. One end of the support rod 65 is fixedly connected to the inner wall of the second fixed section 62, and the other end of the support rod 65 is fixedly connected to the bristles 66. The bristles 66 are made of metal.

[0037] A water guide hole 71 is formed at one end of the second connecting pipe 22 close to the fixed pipe 2, and a paddle 72 is fixedly connected to the edge of the filter screen 63. A plurality of paddles 72 are evenly distributed along the axis of the filter screen 63. The water guide hole 71 corresponds to the paddle 72.

[0038] Water flows in the second connecting pipe 22 and is sprayed out from the water guide hole 71. The water contacts the paddle 72 and drives the filter screen 63 to rotate through the paddle 72, so that the brush plate 64 can brush the filter screen 63 to prevent the filter screen 63 from being blocked by particles.

[0039] A driving ring 73 for blocking the water guide hole 71 is rotatably connected to the outer wall of the first connecting tube 21, and the driving ring 73 is close to the end of the second connecting tube 22. A circular sealing ring 74 is fixedly connected to the side of the driving ring 73 facing the second connecting tube 22. The inner diameter of the sealing ring 74 is larger than the inner diameter of the water guide hole 71. The sealing ring 74 is used to contact the end of the second connecting tube 22 to block the water guide hole 71. A connecting hole 731 corresponding to the water guide hole 71 is provided on the driving ring 73, and the aperture of the connecting hole 731 is larger than the aperture of the water guide hole 71. Two grooves 75 are provided on the outer wall of the driving ring 73, one groove 75 corresponds to the connecting hole 731, and the other groove 75 corresponds to the sealing ring 74.

[0040] A protective cover 8 is fixedly connected to the outer wall of the first connecting pipe 21, and a sealing ring 81 is fixedly connected to the side of the protective cover 8 facing the drive ring 73. The sealing ring 81 contacts the side of the drive ring 73 facing away from the second connecting pipe 22. A sealing ring 81 is also connected between the protective cover 8 and the second fixed section 62.

[0041] A partition 82 is fixedly connected inside the protective cover 8, and the partition 82 is coaxially arranged with the protective cover 8. A reflux hole 821 corresponding to the water guide hole 71 is opened on the partition 82, and the aperture of the reflux hole 821 is larger than the aperture of the connecting hole 731. The partition 82 divides the interior of the protective cover 8 into a driving chamber 83 and a water storage chamber 84, and the paddle 72 is located in the driving chamber 83.

[0042] As mentioned above, the driving ring 73 is rotated to make the connecting hole 731 correspond to the water guide hole 71, and the water is discharged from the connecting hole 731 and sprayed to the paddle 72. The paddle 72 drives the filter 63 to rotate. Moreover, due to the high water pressure, the water flow is almost in a straight line, and most of the water passes through the return hole 821 and falls into the water storage chamber 84. An inclined guide plate 85 is fixedly connected to the inner wall of the water storage chamber 84, so that the water flow contacts the guide plate 85 and flows along the guide plate 85 to the bottom of the water storage chamber 84.

[0043] A straight hole 822 is formed at the lower end of the partition plate 82 , and water in the driving chamber 83 flows into the water storage chamber 84 along the straight hole 822 , thereby making the filter screen 63 rotate more smoothly.

[0044] A return pipe 9 is fixedly connected to the water storage chamber 84, and the return pipe 9 passes through the third connecting pipe 23 and is located in the drain pipe 26. The return pipe 9 is Z-shaped so that the water in the drain pipe 26 is not easy to flow into the return pipe 9.

[0045] A baffle 95 is fixedly connected inside the protective cover 8 to allow water to converge toward the return pipe 9 .

[0046] A one-way valve 91 is provided at one end of the return pipe 9 close to the water storage chamber 84 .

[0047] The one-way valve 91 includes a fixed plate 92, an elastic member 93, and a sealing plate 94. The fixed plate 92 is disc-shaped and fixed to the inner wall of the return pipe 9, and the outer wall of the fixed plate 92 is fixedly connected to the inner wall of the return pipe 9. A connecting hole 921 is provided on the fixed plate 92, and a fixing rod is fixedly connected to the fixed plate 92. The sealing plate 94 is slidably connected to the fixing rod and is used to block the connecting hole 921. The two ends of the elastic member 93 are respectively connected to the fixed plate 92 and the sealing plate 94, and the elastic member 93 always applies a force to the sealing plate 94 in the direction of approaching the fixed plate 92. The sealing plate 94 is located on the side of the fixed plate 92 facing the drain pipe 26. The elastic member 93 is a tension spring.

[0048] Of course, the above are only typical examples of the present invention. In addition, the present invention may also have many other specific implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A low-noise ultra-high-pressure water pump unit, comprising a water tank (11), a power motor (12), and a water pump (13), wherein the water pump (13) is driven by the power motor (12) to work, and a water inlet of the water pump (13) is connected to the water tank (11), wherein: The water outlet of the water pump (13) is connected to a fixed pipe (2) through a water outlet pipe, a first connecting pipe (21) is fixedly connected to the outer wall of the fixed pipe (2), a second connecting pipe (22) is fixedly connected to the outer wall of the first connecting pipe (21), a third connecting pipe (23) is fixedly connected to the outer wall of the second connecting pipe (22), a first through hole (24) communicating with the inner wall of the second connecting pipe (22) is formed at one end of the first connecting pipe (21) away from the fixed pipe (2), a second through hole (25) communicating with the third connecting pipe (23) is formed at one end of the second connecting pipe (22) away from the first through hole (24), and a drain pipe (26) is connected to one end of the third connecting pipe (23) away from the second through hole (25).

2. A low-noise ultra-high pressure water pump unit according to claim 1, characterized in that: A main nozzle (31) and a plurality of branch nozzles (32) are fixed on the fixed pipe (2); the axis of the branch nozzle (32) and the main nozzle (31) are arranged in parallel; a main hole (33) and a plurality of branch holes (34) are opened on the fixed pipe (2); one end of the main hole (33) is connected to the water outlet pipe, and the other end of the main hole (33) is connected to the main nozzle (31); one end of the branch hole (34) is connected to the main hole (33), and the other end of the branch hole (34) is connected to the branch nozzle (32); and the plurality of branch holes (34) are evenly distributed along the axis of the main hole (33).

3. The low-noise ultra-high pressure water pump unit according to claim 1 is characterized in that: It also includes a purifier (5), the water tank (11) is connected to the purifier (5) through a water pipe (41), and the purifier (5) is connected to the water inlet through a water inlet pipe (42).

4. A low-noise ultra-high pressure water pump unit according to claim 2, characterized in that: The fixed pipe (2) comprises a first fixed section (61), a second fixed section (62) and a filter screen (63); the first fixed section (61) is fixed on the first connecting pipe (21); the second fixed section (62) is connected to the water outlet pipe; and the filter screen (63) is arranged between the first fixed section (61) and the second fixed section (62).

5. A low-noise ultra-high pressure water pump unit according to claim 4, characterized in that: The filter screen (63) is rotatably connected between the first fixed section (61) and the second fixed section (62); a brush plate (64) is fixedly connected to the inner wall of the second fixed section (62) for contacting the surface of the filter screen (63); a water guide hole (71) is provided at one end of the second connecting pipe (22) close to the fixed pipe (2); a paddle (72) is fixedly connected to the edge of the filter screen (63); and the water guide hole (71) corresponds to the paddle (72).

6. A low-noise ultra-high pressure water pump unit according to claim 5, characterized in that: A driving ring (73) for blocking the water guide hole (71) is rotatably connected to the outer wall of the first connecting pipe (21), and a connecting hole (731) corresponding to the water guide hole (71) is provided on the driving ring (73).

7. A low-noise ultra-high pressure water pump unit according to claim 6, characterized in that: A protective cover (8) is fixedly connected to the outer wall of the first connecting pipe (21); a sealing ring (81) is provided between the protective cover (8) and the driving ring (73); a partition (82) is fixedly connected to the inside of the protective cover (8); a reflux hole (821) corresponding to the water guide hole (71) is provided on the partition (82); the partition (82) divides the inside of the protective cover (8) into a driving chamber (83) and a water storage chamber (84); and the paddle (72) is located in the driving chamber (83).

8. The low-noise ultra-high pressure water pump unit according to claim 7 is characterized in that: The water storage chamber (84) is fixedly connected with a return pipe (9), and the return pipe (9) passes through the third connecting pipe (23) and is located in the drainage pipe (26).

9. A low-noise ultra-high pressure water pump unit according to claim 8, characterized in that: A one-way valve (91) is provided at one end of the return pipe (9) close to the water storage chamber (84).

10. A low-noise ultra-high pressure water pump unit according to claim 9, characterized in that: The one-way valve (91) comprises a fixed plate (92), an elastic member (93), and a sealing plate (94); the fixed plate (92) is fixed to the inner wall of the return pipe (9); a connecting hole (921) is provided on the fixed plate (92); a fixing rod is fixedly connected to the fixed plate (92); the sealing plate (94) is slidably connected to the fixing rod and is used to block the connecting hole (921); the two ends of the elastic member (93) are respectively connected to the fixed plate (92) and the sealing plate (94); the sealing plate (94) is located on the side of the fixed plate (92) facing the drain pipe (26).

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