A low-noise ultra-high pressure water pump unit

Abstract

The present invention provides a low-noise ultra-high pressure water pump unit, which includes a water tank, a power motor, and a water pump. The water pump is driven by the power motor to operate. The water inlet of the water pump is communicated with the water tank, and the water outlet of the water pump is connected with a fixed pipe through a water outlet pipe. A first communication pipe is fixedly connected to the outer wall of the fixed pipe, a second communication pipe is fixedly connected to the outer wall of the first communication pipe, and a third communication pipe is fixedly connected to the outer wall of the second communication pipe. A first through hole communicating with the inner wall of the second communication pipe is opened at one end of the first communication pipe away from the fixed pipe, a second through hole communicating with the third communication pipe is opened at one end of the second communication pipe away from the first through hole, and a drain pipe is connected to one end of the third communication pipe away from the second through hole, achieving the effect of low noise.

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 a plurality of branch nozzles are fixed on the fixed pipe. The axes of the branch nozzles and the main nozzle are arranged in parallel. A main hole and a plurality of branch holes are formed in the fixed pipe. One end of the main hole is communicated with the water outlet pipe, and the other end of the main hole is communicated with the main nozzle. One end of the branch hole is communicated with the main hole, and the other end of the branch hole is communicated with the branch nozzle. The plurality of branch holes are evenly distributed along the axis of the main hole.

[0008] To achieve the above technical solution, the water in the main hole is shunted through the branch holes, and then injected into the first communication pipe through the main nozzle and the branch nozzles. The water flow rate is relatively slowed down to reduce noise. Moreover, the plurality of branch nozzles can balance the water pressure and reduce the noise caused by pressure changes; at the same time, it can slow down the vibration and reduce the vibration noise.

[0009] As a preferred embodiment of the present invention, it further includes a purifier. The water tank is communicated with the purifier through a water guide pipe, and the purifier is communicated with the water inlet through a water inlet pipe.

[0010] To achieve the above technical solution, the purifier removes most of the impurities and particulate matters in the water. The impurities and particulate matters will generate friction and impact under high pressure, resulting in noise. The filtered water is purer to reduce the friction and impact noise; at the same time, it can enhance the protection effect on the water pump.

[0011] As a preferred embodiment 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 communication pipe, the second fixed section is communicated with the water outlet pipe, and the filter screen is arranged between the first fixed section and the second fixed section.

[0012] To achieve the above technical solution, after the water passes through the filter screen, it can be purer, thereby further reducing noise.

[0013] As a preferred embodiment of the present invention, the filter screen is rotatably connected between the first fixed section and the second fixed section. A brush plate for abutting against the surface of the filter screen is fixedly connected to the inner wall of the second fixed section. A water guide hole is formed at one end of the second communication pipe close to the fixed pipe. A paddle is fixedly connected to the edge of the filter screen, and the water guide hole corresponds to the paddle.

[0014] To achieve the above technical solution, the water in the second communication pipe is ejected from the water guide hole and drives the filter screen to rotate rapidly through the paddle. A relative rotation is generated between the brush plate and the filter screen, thereby preventing the filter screen from being blocked by particulate matters.

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

[0016] To implement the above technical solution, rotate the driving ring so that the communication holes correspond to the water guiding holes. The water in the second communication pipe can then be ejected from the communication holes after passing through the water guiding holes, causing the filter screen to rotate rapidly. Rotate the driving ring so that the communication holes are misaligned with the water guiding holes, and the driving ring can block the water guiding holes, preventing the filter screen from rotating, thereby achieving the function of controlling the rotation and stillness of the filter screen. Since the rotation of the filter screen will generate relatively large 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 communication pipe. A sealing ring is provided between the protective cover and the driving ring. A partition is fixedly connected inside the protective cover. A return hole corresponding to the water guiding hole is opened on the partition. The partition divides the interior of the protective cover into a driving cavity and a water storage cavity. The paddle is located in the driving cavity.

[0018] To implement the above technical solution, the sealing ring improves the sealing performance between the driving ring and the protective cover, making it difficult for water to leak out. Rotate the driving ring so that the communication holes correspond to the water guiding holes. Due to the large water pressure, the water flow conducts almost in a straight line, and the water rapidly rushes out from the communication holes. After rotating the filter screen, the water flow passes through the return holes and is injected into the water storage cavity, thereby reducing water resource waste.

[0019] As a preferred solution of the present invention, a return pipe is fixedly connected to the water storage cavity. The return pipe passes through the third communication pipe and is located inside the drain pipe.

[0020] To implement the above technical solution, the water in the water storage cavity is injected into the drain pipe through the return pipe for water utilization.

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

[0022] To implement the above technical solution, the water in the drain pipe cannot enter the water storage cavity.

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

[0024] To implement the above technical solution, the water in the water storage cavity, under the action of water pressure and gravity, passes through the connection hole and pushes up the sealing plate. The elastic member deforms, and the water enters the return pipe. When the water in the return pipe flows towards the water storage cavity, the water flow will press the sealing plate against the fixing plate, and the sealing plate blocks the connection hole, thereby achieving the effect of one-way flow. 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;

[0026] Figure 2 This is a schematic sectional view showing the first connecting pipe;

[0027] Figure 3 This is a schematic sectional view showing the fixed pipe;

[0028] Figure 4 It is Figure 3 an enlarged view of part A of

[0029] Figure 5 This is a schematic three - dimensional structure diagram showing the paddle;

[0030] Figure 6 This is a schematic diagram showing the position of the water guiding holes;

[0031] Figure 7 This is a schematic diagram showing the structure of the driving ring;

[0032] Figure 8 This is a schematic diagram showing the structure of the protective cover;

[0033] Figure 9 This is a schematic diagram showing the structure of the return pipe.

[0034] Reference 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 guide pipe; 42, water inlet pipe; 5, purifier; 61, first fixed section; 62, second fixed section; 63, filter screen; 64, brush plate; 65, support rod; 66, bristles; 71, water guiding holes; 72, paddle; 73, driving ring; 731, communication hole; 74, sealing ring; 75, groove; 8, protective cover; 81, sealing ring; 82, partition board; 821, return hole; 822, straight hole; 83, driving cavity; 84, water storage cavity; 85, guiding plate; 9, return pipe; 91, check valve; 92, fixing plate; 921, connection hole; 93, elastic member; 94, sealing plate; 95, baffle plate. Detailed implementation manners

[0035] The following further details the specific implementation manners of the present invention in conjunction with the accompanying drawings, so that the technical solutions of the present invention are easier to understand and master.

[0036] A low - noise ultra - high - pressure water pump unit includes a water tank 11, a power motor 12, and a water pump 13. The water pump 13 is a plunger pump. The water pump 13 is driven by the power motor 12 to work.

[0037] The water outlet of the water pump 13 is connected to a fixed pipe 2 through a water outlet pipe. A first communication pipe 21 is fixedly connected to the outer wall of the fixed pipe 2, and the fixed pipe 2 and the first communication pipe 21 are coaxially arranged. A second communication pipe 22 is fixedly connected to the outer wall of the first communication pipe 21, and the second communication pipe 22 and the first communication pipe 21 are coaxially arranged. A third communication pipe 23 is fixedly connected to the outer wall of the second communication pipe 22, and the third communication pipe 23 and the second communication pipe 22 are coaxially arranged.

[0038] A first through hole 24 communicating with the inner wall of the second communication pipe 22 is provided at one end of the first communication pipe 21 away from the fixed pipe 2. A second through hole 25 communicating with the third communication pipe 23 is provided at one end of the second communication pipe 22 away from the first through hole 24. A drain pipe 26 is connected to one end of the third communication pipe 23 away from the second through hole 25.

[0039] Both the first through hole 24 and the second through hole 25 are waist-shaped holes.

[0040] A main nozzle 31 and six branch nozzles 32 are fixed on the fixed pipe 2. The axes of the branch nozzles 32 and the main nozzle 31 are parallel, and the six branch nozzles 32 are evenly distributed along the axis of the main nozzle 31. The main nozzle 31 and the fixed pipe 2 are coaxially arranged.

[0041] A main hole 33 and six branch holes 34 are provided in the fixed pipe 2. One end of the main hole 33 is communicated with the water outlet pipe, and the other end of the main hole 33 is communicated with the main nozzle 31. The main hole 33 and the fixed pipe 2 are coaxially arranged. One end of the branch hole 34 is communicated with the main hole 33, and the other end of the branch hole 34 is communicated with the branch nozzle 32. The six branch holes 34 are evenly distributed along the axis of the main hole 33. The branch hole 34 is inclined, and the aperture of the branch hole 34 is smaller than the aperture of the main hole 33.

[0042] The water tank 11 and the purifier 5 are communicated through a water guide pipe 41, and the purifier 5 is communicated with the water inlet of the water pump 13 through a water inlet pipe 42.

[0043] The fixed pipe 2 includes a first fixed section 61, a second fixed section 62 and a filter screen 63. Among them, the first fixed section 61 is fixed on the first communication pipe 21, the second fixed section 62 is fixedly connected and communicated with the water outlet pipe, and the filter screen 63 is arranged between the first fixed section 61 and the second fixed section 62.

[0044] The filter screen 63 is rotatably connected between the first fixed section 61 and the second fixed section 62, and the first fixed section 61, the filter screen 63 and the second fixed section 62 are coaxially arranged. A brush plate 64 for abutting against 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] A straight hole 822 is formed at the lower end of the partition plate 82 , and the water in the driving chamber 83 flows into the water storage chamber 84 along the straight hole 822 , so that the filter screen 63 can rotate more smoothly.

[0052] A return pipe 9 is fixedly connected to the water storage cavity 84. The return pipe 9 passes through the third communication pipe 23 and is located inside the drain pipe 26. The return pipe 9 is in a Z shape so that the water in the drain pipe 26 is not easily introduced into the return pipe 9.

[0053] A baffle 95 is fixedly connected inside the protective cover 8 to cause the water to converge towards the return pipe 9.

[0054] A one-way valve 91 is provided at one end of the return pipe 9 close to the water storage cavity 84.

[0055] The one-way valve 91 includes a fixing plate 92, an elastic member 93, and a sealing plate 94. The fixing plate 92 is in a disc shape and is fixed to the inner wall of the return pipe 9. The outer wall of the fixing plate 92 is fixedly connected to the inner wall of the return pipe 9. A connection hole 921 is formed in the fixing plate 92, and a fixing rod is fixedly connected to the fixing plate 92. The sealing plate 94 is slidably connected to the fixing rod and is used to block the connection hole 921. Two ends of the elastic member 93 are respectively connected to the fixing plate 92 and the sealing plate 94, and the elastic member 93 always applies a force to the sealing plate 94 in a direction close to the fixing plate 92. The sealing plate 94 is located on the side of the fixing plate 92 facing the drain pipe 26. The elastic member 93 is a tension spring.

[0056] Of course, the above are only typical examples of the present invention. In addition, the present invention can also have many other specific implementation manners. Any 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, a power motor, and a water pump, wherein the water pump is driven by the power motor to work, and the water inlet of the water pump is connected to the water tank, wherein: The water outlet of the water pump is connected to a fixed pipe through a water outlet pipe, a first connecting pipe is fixedly connected to the outer wall of the fixed pipe, a second connecting pipe is fixedly connected to the outer wall of the first connecting pipe, a third connecting pipe is fixedly connected to the outer wall of the second connecting pipe, a first through hole communicating with the inner wall of the second connecting pipe is formed at one end of the first connecting pipe away from the fixed pipe, a second through hole communicating with the third connecting pipe is formed at one end of the second connecting pipe away from the first through hole, a drain pipe is connected to one end of the third connecting pipe away from the second through hole, a main nozzle and a plurality of branch nozzles are fixed to the fixed pipe, the axes of the branch nozzles and the main nozzles are arranged in parallel, The fixed pipe is provided with a main hole and a plurality of branch holes, one end of the main hole is connected to the water outlet pipe, 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, the other end of the branch hole is connected to the branch nozzle, and the plurality of branch holes are evenly distributed along the axis of the main hole. The fixed pipe comprises a first fixed section, a second fixed section and a filter screen, the first fixed section is fixed to the first connecting pipe, the second fixed section is connected to the water outlet pipe, the filter screen is arranged between the first fixed section and the second fixed section, the filter screen is rotatably connected between the first fixed section and the second fixed section, and a brush plate for contacting with the surface of the filter screen is fixedly connected to the inner wall of the second fixed section.

2. A low-noise ultra-high pressure water pump unit according to claim 1, characterized in that: 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.

3. The low-noise ultra-high pressure water pump unit according to claim 1 is characterized in that: A water guide hole is provided at one end of the second connecting pipe close to the fixed pipe, a paddle is fixedly connected to the edge of the filter screen, and the water guide hole corresponds to the paddle.

4. A low-noise ultra-high pressure water pump unit according to claim 3, characterized in that: 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.

5. A low-noise ultra-high pressure water pump unit according to claim 4, characterized in that: A protective cover is fixedly connected to the outer wall of the first connecting pipe, 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.

6. A low-noise ultra-high pressure water pump unit according to claim 5, characterized in that: The water storage chamber is fixedly connected with a reflux pipe, which passes through the third connecting pipe and is located in the drain pipe.

7. A low-noise ultra-high pressure water pump unit according to claim 6, characterized in that: A one-way valve is arranged at one end of the reflux pipe close to the water storage chamber.

8. The low-noise ultra-high pressure water pump unit according to claim 7 is characterized in that: 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 return 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. The sealing plate is located on the side of the fixed plate facing the drain pipe.

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