A noise-reducing RO booster pump assembly and water purifier

Abstract

The present application relates to a noise reduction RO booster pump assembly and a water purifier, including an RO booster pump, the RO booster pump including a pump head housing, a pump head assembly and a driving member; and also including a noise reduction container; the RO booster pump extends into the noise reduction container, the pump head housing and the pump head assembly are both located on the inner side of the noise reduction container; the noise reduction RO booster pump assembly has a water inlet and a drain; the RO booster pump can pump water from the water inlet into the noise reduction RO booster pump assembly and discharge it through the drain. The present application has the effect of reducing the noise generated by the operation of the RO booster pump.

Description

Technical Field

[0001] The present application relates to the technical field of water purification equipment, and in particular to a noise-reducing RO booster pump assembly and a water purifier. Background Art

[0002] RO booster pumps are also called RO diaphragm pumps and reverse osmosis booster pumps. They are mainly used in the water purification industry and are also common components in household water purifiers. RO pumps include a pump head housing, a pump head assembly, and a drive that drives the pump head assembly. Among them, the drive usually uses a motor.

[0003] When the RO booster pump is running, the motor drives the pump head assembly to move, thereby realizing the function of the RO booster pump to pump water and increase pressure. During the operation of the RO booster pump, noise will be generated, among which the noise generated by the pump head assembly during operation is the main source of noise emitted by the RO booster pump.

[0004] With respect to the above-mentioned related technologies, the inventor believes that the above-mentioned RO booster pump will generate relatively large noise during operation. Summary of the invention

[0005] In order to reduce the noise generated during the operation of an RO booster pump, the present application provides a noise reducing RO booster pump assembly and a water purifier.

[0006] In the first aspect, the present application provides a noise reduction RO booster pump assembly, which adopts the following technical solution:

[0007] A noise reduction RO booster pump assembly comprises an RO booster pump, wherein the RO booster pump comprises a pump head housing, a pump head assembly and a driving member; and further comprises a noise reduction container; the RO booster pump extends into the noise reduction container, and the pump head housing and the pump head assembly are both located on the inner side of the noise reduction container; the noise reduction RO booster pump assembly has a water inlet and a drain; the RO booster pump can draw water from the water inlet into the noise reduction RO booster pump assembly and discharge it through the drain.

[0008] By adopting the above technical solution, since the main noise source of the RO booster pump is the noise generated when the pump head assembly is in operation, the pump head housing and the pump head assembly of the RO booster pump are arranged in a noise reduction container, so that when the RO booster pump is in operation, the noise generated when the pump head assembly is in operation will be partially isolated by the noise reduction container, thereby weakening the noise generated when the RO booster pump is in operation, so that the entire noise reduction RO booster pump assembly can maintain a relatively quiet working state during use.

[0009] Optionally, a waterproof cover is further sleeved on the outer side of the RO booster pump; one end of the waterproof cover is sealed and connected to the pump head housing, and the other end of the waterproof cover is sealed and connected to the noise reduction container.

[0010] By adopting the above technical solution, water is filled in the noise reduction container, and the noise generated by the pump head assembly is weakened by the water in the noise reduction container, thereby achieving the purpose of noise reduction. The provision of the waterproof cover can enhance the waterproof ability of the RO booster pump, reduce the water in the noise reduction container from entering the RO booster pump through the gap on the shell of the RO booster pump, and ensure the stable operation of the RO booster pump in the noise reduction container.

[0011] Optionally, the waterproof cover and the pump head housing structure form an installation chamber; the driving member is also placed in the installation chamber.

[0012] By adopting the above technical solution, the driving component of the RO booster pump is also arranged in the installation chamber, so that the noise reduction container can also weaken the noise generated by the driving component during operation, which helps to make the entire noise reduction RO booster pump assembly maintain a relatively quiet working state during use.

[0013] Optionally, the noise reduction container is provided with an installation opening corresponding to the installation chamber on the side wall; the noise reduction RO booster pump assembly also includes a sound insulation cover plate covering the installation opening.

[0014] By adopting the above technical solution, when assembling the noise-reducing RO booster pump assembly, the pump head assembly and the driving member can be sequentially installed in the installation chamber, making the assembly of the noise-reducing RO booster pump assembly more convenient. In addition, using a soundproof cover plate to cover the installation opening can further reduce the noise generated by the RO booster pump during use, which helps to keep the entire noise-reducing RO booster pump assembly in a relatively quiet working state during use.

[0015] Optionally, the noise reduction container comprises a noise reduction outer barrel with an opening at one end and a noise reduction end cover sealingly covering the opening of the noise reduction outer barrel, and the waterproof cover is connected to the noise reduction end cover.

[0016] By adopting the above technical solution, during assembly, the components of the RO booster pump can be installed on the noise reduction end cover in sequence first, and then the noise reduction end cover can be installed on the noise reduction outer barrel, making the assembly of the noise reduction RO booster pump assembly more convenient.

[0017] Optionally, the waterproof cover, the noise reduction end cover and the pump head housing are integrally arranged.

[0018] By adopting the above technical solution, when assembling the noise reduction RO booster pump assembly, the pump head assembly, the driving member and the sound insulation cover are sequentially installed in the installation chamber, and then the noise reduction end cover is installed on the noise reduction outer barrel. This installation method is relatively convenient. In addition, the water in the noise reduction container cannot enter the inner side of the RO booster pump through the gap on the outer surface of the RO booster pump, which reduces the probability of water entering the RO booster pump, making the operation of the noise reduction RO booster pump assembly more stable.

[0019] Optionally, a support member supported between the waterproof cover and the RO booster pump is provided in the installation chamber.

[0020] By adopting the above technical solution, since the RO booster pump will vibrate during operation, the RO booster pump can be supported by using a support member between the waterproof cover and the RO booster pump, thereby improving the stability of the RO booster pump in the installation chamber.

[0021] Optionally, a water inlet joint and a drain joint are provided on the noise reduction shell; the water inlet is arranged on the water inlet joint, and the drain outlet is arranged on the drain joint; the water inlet joint is communicated with the inner cavity of the noise reduction container; the water inlet of the RO booster pump is communicated with the inner cavity of the noise reduction container; the water pump port of the RO booster pump and the drain joint are connected through a drain pipe.

[0022] By adopting the above technical solution, when the above noise reduction RO booster pump assembly is in operation, the RO booster pump pumps water at the water inlet into the noise reduction container, and enters the RO booster pump through the water inlet. After that, this part of water passes through the pump water inlet, the drain pipe and the drain joint in sequence, and is discharged from the noise reduction RO booster pump assembly from the drain outlet, so that the water in the noise reduction container used to reduce noise is the water pumped and discharged by the noise reduction RO booster pump assembly, so that the water in the noise reduction container can be replaced in time.

[0023] Optionally, the noise reduction container is filled with sound insulation filler.

[0024] By adopting the above technical solution, the noise generated by the pump head assembly of the RO booster pump can be weakened by the sound insulation filler, which helps the entire noise reduction RO booster pump assembly to maintain a relatively quiet working state during use.

[0025] In a second aspect, the present application provides a water purifier, which adopts the following technical solution:

[0026] A water purifier comprises the above-mentioned noise reduction RO booster pump assembly.

[0027] By adopting the above technical solution, the water purifier has a noise reduction RO booster pump assembly, which makes less noise when the RO booster pump pumps water, helping the entire water purifier to maintain a relatively quiet working state during use.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. A noise reduction RO booster pump assembly, by providing a noise reduction container, and placing a pump head assembly in the RO booster pump in the noise reduction container, so that the noise generated by the pump head assembly in the RO booster pump will be weakened by the noise reduction container, thereby weakening the noise generated when the RO booster pump is running, so that the entire noise reduction RO booster pump assembly can maintain a relatively quiet working state during use;

[0030] 2. The pump head assembly and drive components of the RO booster pump are located in the installation chamber, and the opening of the installation chamber is covered by a soundproof cover plate, which further reduces the noise generated by the operation of the RO booster pump;

[0031] 3. The waterproof cover, noise reduction end cover and pump head housing are integrally formed, which is helpful for the assembly of the noise reduction RO booster pump assembly, improves the waterproof ability of the RO booster pump, and reduces the probability of water in the noise reduction container entering the RO booster pump;

[0032] 4. A water purifier, comprising the above-mentioned noise reduction RO booster pump assembly, which has the function of pumping water and generates less noise during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of the structure of the noise reduction RO booster pump assembly in Example 1.

[0034] Figure 2 Schematic cross-sectional view of a noise-reducing RO booster pump assembly in Example 1.

[0035] Figure 3 It is a schematic diagram of the bottom structure of the pump head housing in Example 1.

[0036] Figure 4 It is a schematic diagram of the explosion of the RO booster pump in Example 1.

[0037] Figure 5 It is an exploded schematic diagram of the driving component in Example 1.

[0038] Figure 6 It is a schematic cross-sectional diagram of the matching of the pump head housing, the water pumping housing, the stopper, and the diaphragm in Example 1.

[0039] Figure 7 It is a schematic diagram of the coordination of the water rack, the diaphragm and the vermicular sheet in Example 1.

[0040] Figure 8 It is a schematic diagram of the top cooperation explosion of the stop fitting, the water inlet check valve and the water outlet check valve in Example 1.

[0041] Fig. 9 It is a schematic diagram of the explosion of the bottom of the stop member, the water inlet check valve and the water outlet check valve in Example 1.

[0042] Fig.10 Schematic cross-sectional view of the noise reduction RO booster pump assembly in Example 3.

[0043] Explanation of reference numerals: 1. noise reduction container; 11. noise reduction outer barrel; 12. noise reduction end cover; 121. water inlet connector; 122. drain connector; 13. accommodating chamber; 2. waterproof cover; 21. installation chamber; 22. installation opening; 3. RO booster pump; 31. pump head housing; 311. water inlet ring groove; 312. pump water groove; 313. annular retaining ring; 314. water inlet; 315. pump water inlet; 316. first through hole; 317. supporting convex ring; 318. first sealing ring ; 32, water pumping housing; 321, second through hole; 322, water pumping through hole; 323, mounting groove; 324, limiting ring groove; 33, stop member; 331, sealing ring groove; 332, second sealing ring; 333, water pumping cavity; 334, first valve slot; 3341, first clamping hole; 3342, water inlet through hole; 335, second valve slot; 3351, second clamping hole; 3352, water inlet through hole; 34, water inlet check valve; 341, first valve plate; 342, first clamping hole connector; 35, water outlet check valve; 351, second valve plate; 352, second clamping joint; 36, diaphragm; 361, limiting convex ring; 362, sealing convex ring; 363, pump water membrane area; 364, positioning groove; 365, vermicular plate; 37, water-pumping rack; 371, mounting ring; 372, water-pumping wheel; 38, eccentric bearing; 39, eccentric wheel; 4, driving member; 41, front end cover; 411, first threaded hole; 412, second threaded hole; 413, water-pumping groove; 42, electric Casing; 43, rear end cover; 431, third through hole; 44, motor shaft; 45, rotor; 46, stator; 47, locking screw; 48, rotating bearing; 51, water inlet; 52, drain outlet; 53, drain pipe; 54, first screw; 55, support member; 56, sound insulation cover plate; 57, water inlet pipe; 58, water pump pipe; 6, sound insulation filler; 61, sound insulation bottom block; 611, lower positioning groove; 62, sound insulation sleeve; 63, sound insulation top cover; 631, upper positioning groove. DETAILED DESCRIPTION

[0044] The following is combined with Figure 1-10 This application is described in further detail.

[0045] Embodiment 1:

[0046] The embodiment of the present application discloses a noise-reducing RO booster pump assembly.

[0047] Reference Figure 1 and Figure 2 A noise reduction RO booster pump assembly includes a noise reduction container 1 and a RO booster pump 3.

[0048] Reference Figure 1and Figure 2 The noise reduction container 1 includes a noise reduction outer barrel 11 and a noise reduction end cover 12. The noise reduction outer barrel 11 is a barrel-shaped structure as a whole, and has a accommodating chamber 13 with an open top. The noise reduction end cover 12 is sealed and installed on the top of the noise reduction outer barrel 11, wherein the outer edge of the noise reduction end cover 12 and the top edge of the noise reduction end cover 12 are fixed by ultrasonic welding to achieve a sealed fit between the noise reduction end cover 12 and the noise reduction outer barrel 11.

[0049] Reference Figure 1 and Figure 2 The noise reduction container 1 is also provided with a water inlet joint 121 and a drainage joint 122. The water inlet joint 121 and the drainage joint 122 are both arranged on the top of the noise reduction end cover 12 and are perpendicular to the top surface of the noise reduction end cover 12. The water inlet joint 121 and the drainage joint 122 are both connected to the accommodating chamber 13 of the noise reduction container 1. The water inlet joint 121 and the drainage joint 122 are both hollow columnar structures, and the water inlet joint 121 is formed with a water inlet 51 on the side away from the noise reduction container 1, and the drainage joint 122 is formed with a drainage port 52 on the side away from the noise reduction container 1.

[0050] The water inlet connector 121 and the drain connector 122 may also be a socket structure, as long as the water in the noise reduction RO booster pump assembly can flow through the water inlet connector 121 and the drain connector 122 .

[0051] Reference Figure 2 The middle area of ​​the noise reduction end cover 12 is concave toward the accommodating chamber 13 and forms a waterproof cover 2. The waterproof cover 2 is a cylindrical structure, and the waterproof cover 2 forms an installation opening 22 on the noise reduction end cover 12.

[0052] Reference Figure 2 The RO booster pump 3 includes a pump head housing 31 , a pump head assembly and a driving member 4 .

[0053] Reference Figure 2 The pump head housing 31 is installed at the end of the waterproof cover 2 away from the noise reduction end cover 12. The pump head housing 31, the waterproof cover 2 and the noise reduction end cover 12 are integrally formed, and the pump head housing 31 and the waterproof cover 2 are structured to form an installation chamber 21. The pump head assembly and the driving member 4 are both arranged in the installation chamber 21.

[0054] Reference Figure 2 and Figure 3 The pump head housing 31 is provided with an annular water inlet groove 311, a pump water groove 312 located inside the water inlet groove 311, and an annular retaining ring 313 isolating the water inlet groove 311 from the pump water groove 312 on the top surface. The bottom surface of the pump head housing 31 is also provided with a water inlet 314 connected to the water inlet groove 311, and the side wall of the pump head housing 31 is provided with a pump water port 315 connected to the pump water groove 312.

[0055] There are two water inlets 314 and both water inlets 314 are arranged toward the bottom surface of the noise reduction outer barrel 11. The water inlet connector 121 is directly connected to the accommodating chamber 13, so that the water entering from the water inlet connector 121 directly enters the accommodating chamber 13 and can flow into the water inlet 314. The pumping port 315 of the RO booster pump 3 is connected to the drain connector 122 through a drain pipe 53, so that the water pumped out from the pumping port 315 of the pump head housing 31 can pass through the drain pipe 53 and the drain connector 122, and then be discharged from the noise reduction RO booster pump assembly from the drain port 52.

[0056] Reference Figure 2 and Figure 4 , the pump head assembly and the driving member 4 are sequentially installed in the installation chamber 21. The pump head assembly has a water pumping housing 32 that abuts against the upper end surface of the pump head housing 31, and the driving member 4 has a front end cover 41 that presses the water pumping housing 32 against the upper end surface of the pump head housing 31. The pump head housing 31 is circumferentially provided with four first through holes 316 that penetrate its upper and lower end surfaces, the water pumping housing 32 is provided with a second through hole 321 that corresponds to the first through hole 316, and the front end cover 41 is provided with a first threaded hole 411 that corresponds to the first through hole 316. The RO booster pump 3 is also provided with a first screw 54 that corresponds to the first through hole 316. The first screw 54 passes through the first through hole 316 and the second through hole 321 from bottom to top in sequence, and is threadedly matched with the first threaded hole 411, so as to achieve the fixing of the water pumping housing 32 and the front end cover 41 of the driving member 4 on the pump head housing 31. In this embodiment, a sealing gasket is provided between the screw head of the first screw 54 and the bottom surface of the pump head housing 31 to reduce the probability of water in the noise reduction container 1 entering the installation chamber 21 through the first through hole 316 and the second through hole 321.

[0057] Reference Figure 2 and Figure 5 The driving member 4 is a motor, and further includes a motor housing 42, a rear end cover 43, a motor shaft 44, a rotor 45 and a stator 46. The motor housing 42 is cylindrical, and the two ends of the motor housing 42 are respectively abutted against the front end cover 41 and the rear end cover 43. The driving member 4 also includes a locking screw 47 for locking the front end cover 41, the motor housing 42 and the rear end cover 43. Among them, the rear end cover 43 is provided with a third through hole 431 for installing the locking screw 47, and the front end cover 41 is provided with a second threaded hole 412 for threading the locking screw 47. The screw portion of the locking screw 47 passes through the third through hole 431 from top to bottom and is threadedly engaged with the second threaded hole 412. In this embodiment, two locking screws 47 are provided on the driving member 4.

[0058] Reference Figure 2The front cover 41 and the rear cover 43 are both provided with a rotary bearing 48 for rotatably supporting the motor shaft 44. The front cover 41 is also provided with a water pumping groove 413 on the end surface facing the water pumping housing 32. The motor shaft 44 of the driving member 4 extends into the water pumping groove 413 and cooperates with the pump head assembly.

[0059] Reference Figure 2 and Figure 4 The pump head assembly further includes a stopper 33, a water inlet check valve 34 mounted on the stopper 33, a water outlet check valve 35, a diaphragm 36, a water pumping frame 37, an eccentric bearing 38 and an eccentric wheel 39. In this embodiment, the RO booster pump 3 is a four-chamber RO booster pump.

[0060] Reference Figure 2 and Figure 4 , the eccentric wheel 39 is mounted on the motor shaft 44 of the driving member 4, and is driven to rotate by the motor shaft 44. The eccentric bearing 38 is sleeved on the outer wall of the eccentric wheel 39, and the inner ring of the eccentric bearing 38 is interference fit with the outer wall of the eccentric wheel 39. The water pumping frame 37 includes a mounting ring 371 sleeved on the outer ring of the eccentric bearing 38 and a water pumping wheel 372 arranged on the mounting ring 371. The outer ring of the eccentric bearing 38 is interference fit with the mounting ring 371, and the water pumping wheel 372 is arranged on the side of the mounting ring 371 close to the pump head housing 31. Since in this embodiment, the RO booster pump 3 is a four-chamber RO booster pump, the number of the water pumping wheels 372 is four, and they are evenly arranged in the circumferential direction.

[0061] Reference Figure 2 and Figure 4 The water pumping housing 32 is provided with water pumping holes 322. The number of the water pumping holes 322 corresponds to the number of the water pumping wheels 372, and the water pumping holes 322 can allow the corresponding water pumping wheels 372 to pass through.

[0062] Reference Figure 6 The water pumping housing 32 is also provided with a mounting groove 323 for mounting the diaphragm 36 on the side facing the pump head housing 31. A circle of limiting ring grooves 324 are circumferentially provided on the bottom surface of the mounting groove 323. The limiting ring grooves 324 are located outside the circumference of the water pumping through hole 322. A circle of supporting protruding rings 317 are also circumferentially provided on the top surface of the pump head housing 31, and the outer side wall of the supporting protruding ring 317 is in contact with the inner wall of the mounting groove 323. A circle of first sealing rings 318 abutting against the diaphragm 36 is also provided on the top surface of the supporting protruding ring 317.

[0063] Reference Figure 6 The diaphragm 36 has a limiting protruding ring 361 matched with the limiting ring groove 324 and a sealing protruding ring 362 abutting against the first sealing ring 318. When the pumping housing 32 is fastened to the top surface of the pump head housing 31, the diaphragm 36 is also pressed between the pump head housing 31 and the pumping housing 32.

[0064] Reference Figure 6 The diaphragm 36 is provided with a positioning groove 364 for the top of the stopper 33 to be embedded on the side facing the stopper 33. The stopper 33 is pressed against the annular retaining ring 313 by the diaphragm 36, and a sealing ring groove 331 for the annular retaining ring 313 is provided in the stopper 33, and a second sealing ring 332 is provided in the sealing ring groove 331 to seal against the annular retaining ring 313, thereby isolating the water inlet groove 311 and the pump water groove 312, so that the liquid in the water inlet groove 311 can only enter the pump water groove 312 through the stopper 33.

[0065] Reference Figure 7 , the area in the diaphragm 36 corresponding to the water-pumping wheel 372 is defined as the water-pumping membrane area 363, that is, the diaphragm 36 has four water-pumping membrane areas 363. The four water-pumping membrane areas 363 are all provided with a vermiform sheet 365 on the side facing the stop member 33. The vermiform sheet 365 is pressed against the water-pumping membrane area 363 by the cooperation of the screw and the water-pumping wheel 372. The screw is provided through the diaphragm 36.

[0066] Reference Figure 7 and Figure 8 The stop member 33 is provided with water pumping cavities 333 corresponding to the four water pumping membrane areas 363 on the top surface. A first valve groove 334 for installing the water inlet check valve 34 is provided at the center of the bottom surface of the water pumping cavity 333, and a first clamping hole 3341 is provided at the center of the first valve groove 334. The water inlet check valve 34 is made of elastic rubber material, and includes a first valve plate 341 adapted to the first valve groove 334 and a first clamping joint 342 clamped with the first clamping hole 3341. The bottom surface of the first valve groove 334 is provided with a water inlet through hole 3342 connecting the water inlet ring groove 311 and the water pumping cavity 333.

[0067] Reference Figure 8 and Fig. 9 The stop member 33 has a second valve slot 335 on the bottom surface facing the pump water slot 312 and used for installing the water outlet check valve 35, and a second clamping hole 3351 is provided at the center of the second valve slot 335. The water outlet check valve 35 is made of elastic material and includes a second valve plate 351 matched with the second valve slot 335 and a second clamping joint 352 clamped with the second clamping hole 3351. The bottom surface of the second valve slot 335 is provided with a plurality of water inlet holes 3352 communicating with the water pump cavity 333, and each water pump cavity 333 corresponds to at least one water inlet hole 3352.

[0068] Combination Figures 2 to 9The operating principle of the above-mentioned RO booster pump 3 is as follows: the motor drives the eccentric wheel 39 to rotate, and the eccentric wheel 39 drives the water pumping frame 37 to rotate through the eccentric bearing 38, thereby driving the water pumping wheel 372 on the water pumping frame 37 to move up and down, and driving the water pumping membrane area 363 and the vermicular sheet 365 of the diaphragm 36 to move up and down; when the water pumping membrane area 363 and the vermicular sheet 365 move upward, the water pumping cavity 333 is in a negative pressure state, so that the water in the noise reduction container 1 enters the water inlet ring groove 311, and enters the water pumping cavity 333 through the water inlet check valve 34; when the water pumping membrane area 363 and the vermicular sheet 365 move downward, the water pumping cavity 333 is converted into a positive pressure state, and the water in the water pumping cavity 333 enters the water pumping tank 312 through the water outlet check valve 35, and is discharged from the noise reduction RO booster pump assembly from the drain port 52 through the drain pipe 53.

[0069] Reference Figure 2 The noise reduction RO booster pump assembly is further provided with a support member 55 supported between the inner wall of the waterproof cover 2 and the motor housing 42 in the installation chamber 21. The outer wall of the support member 55 is in contact with the inner wall of the waterproof cover 2, and the inner wall of the support member 55 is in contact with the motor housing 42.

[0070] Reference Figure 2 The noise reduction RO booster pump assembly is also provided with a soundproof cover plate 56 covering the installation opening 22. The shape of the soundproof cover plate 56 is adapted to the cross-sectional shape of the installation chamber, and the soundproof cover plate 56 is made of soundproof material.

[0071] Combination Figures 1 to 9 The noise reduction principle of the above-mentioned noise reduction RO booster pump assembly is as follows: the RO booster pump 3 is arranged in the noise reduction container 1, and the noise reduction container 1 is filled with water, and the installation opening 22 is covered with a sound insulation cover plate 56, so that a part of the noise generated by the RO booster pump 3 can be weakened by the water in the noise reduction container 1, and the other part is weakened by the sound insulation cover plate 56, so that the noise generated by the noise reduction RO booster pump assembly is smaller, so that the noise reduction RO booster pump assembly can maintain a relatively quiet state during operation.

[0072] Example 2

[0073] The present application also discloses a water purifier, which includes the noise reduction RO booster pump assembly in Example 1.

[0074] Example 3

[0075] Reference Fig.10 A noise reduction RO booster pump assembly comprises a noise reduction container 1 and a RO booster pump 3.

[0076] Reference Fig.10The noise reduction container 1 includes a noise reduction outer barrel 11 and a noise reduction end cover 12 covering the end opening of the noise reduction outer barrel 11. The noise reduction end cover 12 is mounted on the noise reduction outer barrel 11 by ultrasonic welding. The noise reduction container 1 has a containing chamber 13. The RO booster pump 3 is vertically arranged in the containing chamber 13 of the noise reduction container 1, and the pump head of the RO booster pump 3 is located at the top of the RO booster pump 3.

[0077] The RO booster pump 3 in this embodiment may be the RO booster pump 3 in Embodiment 1, or may be other types of RO booster pumps 3, as long as the RO booster pump 3 has the function of pumping water and boosting pressure.

[0078] Reference Fig.10 The water inlet of the RO booster pump 3 is connected to a water inlet pipe 57, and the water pumping port of the RO booster pump 3 is connected to a water pumping pipe 58. The water inlet pipe 57 and the water pumping pipe 58 both penetrate the noise reduction end cover 12. The opening of the water inlet pipe 57 away from the RO booster pump 3 is the water inlet 51, and the opening of the water pumping pipe 58 away from the RO booster pump 3 is the drain port 52.

[0079] Reference Fig.10 A sound insulation filler 6 for supporting the RO booster pump 3 is also provided in the noise reduction container 1. The sound insulation filler 6 includes a sound insulation bottom block 61 supported at the bottom of the RO booster pump 3, a sound insulation sleeve 62 located outside the RO booster pump 3, and a sound insulation top cover 63 located at the top of the RO booster pump 3.

[0080] The top surface of the soundproof bottom block 61 is provided with a lower positioning groove 611 adapted to the bottom structure of the RO booster pump 3. The outer wall of the soundproof sleeve 62 is fitted with the inner wall of the noise reduction outer barrel 11. The bottom of the soundproof top cover 63 is provided with an upper positioning groove 631 adapted to the top structure of the RO booster pump 3. The soundproof top cover 63 is also provided with through holes for the water supply pipe 57 and the pump water pipe 58 to pass through.

[0081] The implementation principle of a noise reduction RO booster pump assembly in an embodiment of the present application is: the RO booster pump 3 is arranged in the noise reduction container 1, and the noise generated by the RO booster pump 3 is weakened by the sound insulation filler 6, so that the noise generated by the noise reduction RO booster pump assembly is smaller.

[0082] Example 4

[0083] The present application also discloses a water purifier, which includes the noise reduction RO booster pump assembly in Example 3.

[0084] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A noise-reducing RO booster pump assembly, comprising an RO booster pump (3), wherein the RO booster pump (3) comprises a pump head housing (31), a pump head assembly and a drive member (4); characterized in that: It also comprises a noise reduction container (1); the RO booster pump (3) extends into the noise reduction container (1), the pump head housing (31) and the pump head assembly are both located on the inner side of the noise reduction container (1); the noise reduction RO booster pump assembly has a water inlet (51) and a water outlet (52); the RO booster pump (3) is capable of pumping water at the water inlet (51) into the noise reduction RO booster pump assembly and discharging the water through the water outlet (52); The noise reduction container (1) is provided with a water inlet joint (121) and a water outlet joint (122); the water inlet (51) is arranged on the water inlet joint (121), and the water outlet (52) is arranged on the water outlet joint (122); the water inlet joint (121) is communicated with the inner cavity of the noise reduction container (1); the water inlet (314) of the RO booster pump (3) is communicated with the inner cavity of the noise reduction container (1); the water pumping port (315) of the RO booster pump (3) and the water outlet joint (122) are connected via a water outlet pipe (53); The outer side of the RO booster pump (3) is also provided with a waterproof cover (2); one end of the waterproof cover (2) is sealedly connected to the pump head housing (31), and the other end of the waterproof cover (2) is sealedly connected to the noise reduction container (1).

2. A noise reduction RO booster pump assembly according to claim 1, characterized in that: The waterproof cover (2) and the pump head housing (31) are constructed to form an installation chamber (21); the driving member (4) is also placed in the installation chamber (21).

3. A noise reduction RO booster pump assembly according to claim 2, characterized in that: The noise reduction container (1) is provided with an installation opening (22) corresponding to the installation chamber (21) on the side wall; the noise reduction RO booster pump assembly also includes a sound insulation cover plate (56) covering the installation opening (22).

4. A noise reduction RO booster pump assembly according to claim 3, characterized in that: The noise reduction container (1) comprises a noise reduction outer barrel (11) with an open end and a noise reduction end cover (12) sealingly covering the opening of the noise reduction outer barrel (11), and the waterproof cover (2) is connected to the noise reduction end cover (12).

5. A noise reduction RO booster pump assembly according to claim 4, characterized in that: The waterproof cover (2), the noise reduction end cover (12) and the pump head housing (31) are integrally arranged.

6. A noise reduction RO booster pump assembly according to claim 2, characterized in that: A support member (55) is provided in the installation chamber (21) and is supported between the waterproof cover (2) and the RO booster pump (3).

7. A water purifier, characterized in that: The invention comprises the noise reducing RO booster pump assembly as described in any one of claims 1 to 6.

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