Booster pump assembly

Abstract

The utility model relates to the technical field of water purification, and discloses a booster pump assembly which is used for pressurizing fluid in a water purifier and comprises a booster pump and an air bag body, an air chamber for storing air is arranged in the air bag body; the air bag body is positioned inside the water purifier, and a mounting groove is formed outside the air bag body; the booster pump is installed and positioned in the installation groove, the air bag body suspends and supports the booster pump, and mechanical vibration transmitted to the outside when the booster pump works is blocked and restrained for noise reduction. The air bag body is selected as a supporting structure to suspend and position the booster pump, the air bag body is filled with air, the air can play an extra buffering role, the vibration isolation effect is enhanced, vibration energy generated when the booster pump works is more effectively absorbed and dispersed, mechanical vibration transmitted to the outside by the booster pump is effectively restrained and reduced, and the service life of the booster pump is prolonged. The noise generated when the water purifier works is reduced, so that the user experience is deeply improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification, in particular to a booster pump assembly. Background Art

[0002] In recent years, with consumers' increasing interest in health products, water purification products have gradually become a market focus, thereby promoting the rapid development of the water purification industry. Reverse osmosis water purifiers, among other things, produce purified water by applying high water pressure in front of the reverse osmosis membrane to achieve reverse osmosis of tap water. To achieve the required water production efficiency, a high-power booster pump must be installed in front of the reverse osmosis membrane. Throughout the operation of the water purifier, the booster pump generates a certain amount of vibration at high speed, which is transmitted to the water purifier body, causing mechanical resonance and generating significant noise. This noise typically increases with the increase in the water purifier's throughput, seriously affecting the user experience and becoming a pain point for current reverse osmosis water purifiers.

[0003] In this regard, in order to achieve noise reduction of reverse osmosis water purifiers, the industry generally installs soft rubber pads between the booster pump and the water purifier body, or installs an additional pump casing outside the booster pump, and uses the soft rubber pads and pump casing to reduce the vibration transmission between the booster pump and the water purifier body, thereby achieving the purpose of noise reduction. However, the material properties of the soft rubber pads and pump casings (such as hardness and damping ratio) determine the upper limit of their vibration isolation effect, making it difficult for the rubber pads and pump casings to effectively absorb and disperse vibration energy in high-frequency or high-intensity vibration environments. In addition, the vibration isolation performance of the soft rubber pads and pump casings will change with changes in vibration frequency and amplitude, and it is difficult to maintain stable vibration isolation performance within a wide frequency band. The above reasons all lead to limited noise reduction effects through soft rubber pads and pump casings, making it difficult to meet consumers' demand for quiet operation of water purifiers. Utility Model Content

[0004] The utility model aims to provide a booster pump assembly to solve the above technical problems.

[0005] To achieve the above objectives, the following technical solutions are provided:

[0006] In the first aspect, the utility model provides a booster pump assembly for pressurizing the fluid in a water purifier, comprising: a booster pump and an air bag body; an air chamber for storing gas is provided inside the air bag body; the air bag body is positioned inside the water purifier, and an installation groove is formed on the outside of the air bag body; the booster pump is installed and positioned in the installation groove, and the air bag body suspends and supports the booster pump, and blocks and suppresses the mechanical vibration transmitted to the outside when the booster pump is working to reduce noise.

[0007] As an optional solution of the booster pump assembly provided by the present invention, the booster pump is provided with a water port, the water port is connected to a water pipe, the installation groove is provided with a sound insulation groove, and the inner wall of the sound insulation groove at least partially abuts the water port and the water pipe.

[0008] As an optional solution of the booster pump assembly provided by the present invention, the inner wall of the mounting groove extends outward to form a plurality of positioning air ribs for abutting and positioning the booster pump, and the positioning air ribs are spaced apart from each other to form a plurality of heat dissipation channels.

[0009] As an optional solution of the booster pump assembly provided by the present invention, the air bag body includes a bag seat positioned at the bottom of the accommodating cavity, the bag seat is formed with a mounting groove, and the bag seat extends longitudinally from one end of the accommodating cavity to form a supporting bag plate as an integral part, and the supporting bag plate is connected to the side wall of the accommodating cavity and is provided with a hanging piece; the booster pump includes a pump body and a pump head arranged at one end of the pump body; the pump head is clamped and positioned in the mounting groove; and the pump body is connected to the hanging piece.

[0010] As an optional solution for the booster pump assembly provided by the present invention, the support bag plate extends outward from one end of the bag seat to form a positioning bag plate, and the positioning bag plate is formed with a positioning groove, and the end of the pump body away from the pump head is clamped and positioned in the positioning groove.

[0011] As an optional solution of the booster pump assembly provided by the utility model, a stiffness adjustment assembly is also included. The stiffness adjustment assembly is connected to the air chamber and is used to extract or replenish the internal gas of the air chamber to adjust the inflation stiffness of the airbag body.

[0012] As an optional solution of the booster pump assembly provided by the present invention, the airbag body is provided with an air inlet nozzle and an air outlet nozzle respectively connected to the air chamber; the stiffness adjustment assembly includes an air pump and an exhaust valve, the air pump is connected to the air inlet nozzle for inflating the air chamber; the exhaust valve is connected to the air outlet nozzle for discharging the gas in the air chamber.

[0013] As an optional solution of the booster pump assembly provided by the present invention, the air inlet nozzle is arranged at the bottom of the airbag body and communicated with the bottom end of the air chamber, and the air outlet nozzle is arranged at the top of the airbag body and communicated with the top end of the air chamber.

[0014] As an optional solution of the booster pump assembly provided by the present invention, a one-way valve is connected in series between the air inlet nozzle and the air pump to allow gas to enter the air chamber in one direction.

[0015] As an optional solution of the booster pump assembly provided by the present invention, it also includes a control assembly, which includes a stiffness detector and a controller; the stiffness detector is connected to the airbag body to detect the inflation stiffness of the airbag body; the signal input end of the controller is connected to the booster pump and the stiffness detector; the signal output end of the controller is connected to the stiffness adjustment assembly to control the stiffness adjustment assembly to pump, release or replenish gas in the air chamber.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. Choosing an air bladder as the support structure to suspend and position the booster pump offers greater flexibility, enabling a tighter fit with the booster pump, housing, or other water purification components. This improves overall structural stability and reduces the noise generated by loose components. Because the air bladder is filled with air, it provides additional cushioning, enhancing vibration isolation and more effectively absorbing and dispersing the vibration energy generated by the booster pump during operation. This effectively suppresses and reduces the mechanical vibration transmitted by the booster pump to the outside world, reducing the noise generated by the water purifier during operation and thus significantly improving the user experience.

[0018] 2. The air chamber is inflated or evacuated through the stiffness adjustment component, so that the inflation stiffness of the airbag can be precisely adjusted according to the vibration characteristics of the booster pump, which can more effectively absorb and disperse vibration energy, reduce vibration transmission and noise generation, and ensure that the airbag can always maintain good vibration isolation performance under vibrations of different frequencies, achieve wide-frequency precise vibration isolation, adapt to complex vibration environments, and significantly improve noise reduction effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0020] Figure 1 Schematic diagram of the internal structure of the housing of the water purifier provided in this embodiment;

[0021] Figure 2 Schematic diagram of the structure of the air bag body of the water purifier provided in this embodiment;

[0022] Figure 3 Schematic diagram of the structure of the air bag body of the water purifier provided by this embodiment when it is connected to the booster pump;

[0023] Figure 4This is a water production process diagram of the water purifier provided in this embodiment;

[0024] Figure 5 It is a structural schematic diagram of the booster pump of the water purifier provided in this embodiment.

[0025] In the picture:

[0026] 1. Shell; 11. Accommodating cavity; 12. Limiting groove; 2. Clean water channel; 21. Raw water inlet; 22. Pre-treatment filter element; 23. RO filter element; 24. Post-filter element; 25. Hall switch faucet; 26. Wastewater valve; 3. Booster pump; 31. Pump body; 32. Pump head; 33. Water channel port; 34. Water channel pipe; 4. Air bag body; 41. Mounting groove; 411. Positioning air rib; 412. Heat dissipation channel; 413. Sound insulation groove; 42. Air chamber; 43. Bag seat; 44. Support bag plate; 45. Hanging piece; 46. Positioning bag plate; 47. Positioning groove; 48. Air inlet nozzle; 49. Air outlet nozzle; 5. Stiffness adjustment component; 51. Air pump; 52. Exhaust valve; 6. Control component; 61. Stiffness detector; 62. Controller DETAILED DESCRIPTION

[0027] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed or detachable connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] Example 1:

[0031] refer to Figures 1 to 5 A water purifier is the same as the existing water purifier that prepares purified water through reverse osmosis technology. It includes a shell 1, on which a purified water waterway 2 is installed. The purified water waterway 2 is connected in series along a preset direction at least in series with a raw water inlet 21, a pre-treatment filter element 22, a booster pump 3, an RO filter element 23, a post-filter element 24 and a Hall switch faucet 25, wherein the RO filter element 23 is also connected to a wastewater valve 26, and a booster pump 3 is connected in series between the pre-treatment filter element 22 and the RO filter element 23. The shell 1 forms a receiving chamber 11, and the booster pump 3 is positioned in the receiving chamber 11.

[0032] During operation, the Hall switch faucet 25 is turned on, the booster pump 3 is started, and the raw water is transported into the pre-treatment filter element 22 through the raw water inlet 21. The pre-treatment filter element 22 filters the raw water, and then the booster pump 3 pressurizes the reclaimed water obtained by filtering the pre-treatment filter element 22. The reclaimed water is pressurized and transported to the RO filter element 23. The RO filter element 23 filters to obtain RO pure water, which is then filtered by the post-filter element 24 and released from the Hall switch faucet 25. The wastewater generated during water production is discharged outward through the wastewater valve 26. The water production stops when the faucet is closed.

[0033] Compared with the prior art, the present application has the following improvements:

[0034] A vibration isolation device is provided within the housing chamber 11 of the housing 1. The device adopts a suspension design and is capable of suspending and positioning the booster pump 3 within the housing chamber 11. Specifically, the vibration isolation device includes an airbag 4 and a stiffness adjustment assembly 5. The airbag 4 is made of an elastic material such as silicone rubber and is connected to the inner wall of the housing chamber 11 by bonding, snap fastening, bolts, etc. The airbag 4 is formed with a mounting groove 41, into which the booster pump 3 is snapped. An air chamber 42 is formed within the airbag 4. The stiffness adjustment assembly 5 is connected to the air chamber 42 and is used to pump or replenish the internal gas of the air chamber 42 to adjust the inflation stiffness of the airbag 4. During operation, the airbag body 4 supports and positions the booster pump 3, blocks and suppresses the mechanical vibration transmitted to the outside world by the booster pump 3 during operation, and reduces the operating noise. In addition, according to the working pressure and specific vibration characteristics of the booster pump 3, the stiffness adjustment component 5 can inflate or exhaust the air chamber 42 to adjust the inflation stiffness of the airbag body 4, so that the inflation stiffness of the airbag body 4 is adapted to the vibration frequency of the booster pump 3, thereby achieving the best vibration isolation and noise reduction effect.

[0035] It should be noted that the inflation stiffness mentioned herein refers to the ability of the airbag 4 to resist deformation when inflated. Specifically, it describes the ability of the material of the airbag 4 to resist external forces, specifically, the shape change caused by the vibrations generated by the operation of the booster pump 3, when the airbag 4 is filled with gas. The magnitude of the inflation stiffness depends on the gas pressure within the air chamber 42 of the airbag 4 and the elastic properties of the material of the airbag 4. As the gas pressure within the air chamber 42 increases, the inflation stiffness of the airbag 4 also increases accordingly, making it more adaptable to resisting higher-frequency external vibrations. Conversely, as the inflation stiffness of the airbag 4 decreases, the airbag 4's ability to resist lower-frequency vibrations improves.

[0036] Compared with the prior art technical solution of "isolating vibration and reducing noise by providing soft rubber pads and pump casing on the booster pump 3", the advantages of the above technical solution of the present application are:

[0037] First, the airbag body 4 is selected as the supporting structure to suspend and position the booster pump 3. Compared with the soft rubber pad and the pump shell, the elasticity of the airbag body 4 is more significant. When it comes into contact with the booster pump 3, the shell 1 or other water purification components, its deformation degree is greater, thereby achieving a tighter fit with the booster pump 3, the shell 1 or other water purification components. This tight fit not only improves the stability of the overall structure, but also effectively reduces the additional noise caused by loose components. In addition, since the airbag body 4 is filled with air, the air can play an additional buffering role and enhance the vibration isolation effect. Therefore, during operation, the airbag body 4 can more effectively absorb and disperse the vibration energy generated by the booster pump 3 when it is working, effectively suppress and reduce the mechanical vibration transmitted to the outside world (i.e., other components of the water purification waterway 2 or the shell 1) when the booster pump 3 is working, reduce the noise generated when the water purifier is working, and thus deeply improve the user experience.

[0038] Secondly, because the air chamber 42 can be inflated or deflated via the stiffness adjustment assembly 5, the inflation stiffness of the airbag 4 can be precisely adjusted according to the vibration characteristics of the booster pump 3. This allows the airbag 4 to more effectively absorb and disperse vibration energy, reducing vibration transmission and noise generation, and ensuring that the airbag 4 consistently maintains good vibration isolation performance under vibrations of different frequencies. Therefore, this design can achieve wide-band, precise vibration isolation, handle complex vibration environments, and significantly improve noise reduction.

[0039] Furthermore, in this embodiment, the inner wall of the mounting groove 41 extends outward to form a plurality of positioning air ribs 411. These positioning air ribs 411 are used to abut the booster pump 3 to position the booster pump 3. At the same time, the plurality of positioning air ribs 411 are spaced apart to form a plurality of heat dissipation channels 412. Through the above solution, the positioning air ribs 411 extend outward and abut the booster pump 3, not only providing more stable and precise positioning for the booster pump 3, but also enhancing the structural strength of the mounting groove 41 and the air bladder 4, allowing the mounting groove 41 and the air bladder 4 to maintain their intact structural form even in a highly vibrating working environment, continuously contacting the booster pump 3 and improving vibration isolation stability. In addition, the positioning air ribs 411 are spaced apart to form heat dissipation channels 412, which can provide a good heat dissipation environment for the booster pump 3 and prevent the air bladder 4 from excessively contacting the booster pump 3. During the operation of the booster pump 3, the heat generated can be quickly dissipated to the surrounding environment through the heat dissipation channels 412, avoiding overheating caused by heat accumulation, ensuring the long-term stable operation of the booster pump 3 and extending its service life.

[0040] In order to increase the water flow rate of the water purifier and facilitate water collection, the existing water purifier has been improved on the basis of the original reverse osmosis water purification process. The small-flux reverse osmosis membrane has been replaced with a large-flux reverse osmosis membrane, and the booster pump 3 has been replaced with a corresponding large-flux booster pump 3. Although this process meets the flow rate requirements of the water purifier, since the large-flux booster pump 3 is larger in volume, mass, and working intensity than the original booster pump 3, its working vibration also increases with the increase in its flux. At the same time, to accommodate smooth exhaust, the large-flux booster pump 3 is usually positioned vertically, that is, in a vertical form in the water purifier. All these factors increase the difficulty of vibration isolation and noise reduction of the booster pump 3 of the water purifier.

[0041] In this regard, in order to meet the vibration isolation and noise reduction requirements of the existing water purifier using a vertical large-flux booster pump 3, this application optimizes and improves the implementation structure of the airbag 4 and the connection method between the airbag 4 and the booster pump 3, specifically:

[0042] The booster pump 3 is vertically disposed within the accommodating chamber 11 and includes a vertically extending pump body 31. A pump head 32 is connected to the bottom end of the pump body 31. The pump head 32 is provided with a water port 33, which is connected to a water pipe 34. The water port 33 includes a water inlet port and a water outlet port. The water pipe 34 includes an inlet pipe connected to the inlet port and an outlet pipe connected to the outlet port. The airbag body 4 includes a bladder seat 43 positioned at the bottom of the accommodating chamber 11. A mounting groove 41 is formed in the bladder seat 43. An end of the bladder seat 43, away from the bottom of the accommodating chamber 11, extends longitudinally and is integrally formed with a support bladder plate 44. The support bladder plate 44 is connected to the side wall of the accommodating chamber 11 and is provided with a suspension plate 45. The pump head 32 of the booster pump 3 is snap-fitted and positioned within the mounting groove 41, and the pump body 31 is connected to the suspension plate 45. For the purpose of vibration isolation and noise reduction, the suspension piece 45 is preferably made of elastic materials such as silicone and rubber, and is arranged on the support bag plate 44 by bonding or integral molding. In this embodiment, the pump body 31 is directly bonded to the suspension piece 45 with strong glue. In addition to bonding, a sleeve or clamp can also be provided on the suspension piece 45, and the pump body 31 can be detachably connected to the pump body 31 through the sleeve or clamp.

[0043] When the water purifier adopts a high-flux reverse osmosis process, that is, a high-flux booster pump 3 is positioned vertically in the accommodating chamber 11 of its housing 1, the above-mentioned airbag 4 structure can effectively isolate and reduce the noise of the high-flux booster pump 3. During operation, the pump head 32 of the pump body 31 is snap-fitted and positioned in the mounting groove 41 of the airbag seat 43. The airbag seat 43 serves as the main support structure to support the booster pump 3 as a whole. At the same time, the airbag seat 43 extends longitudinally to form a supporting airbag plate 44, which is connected to the side wall of the accommodating chamber 11. The pump body 31 of the booster pump 3 is connected by a suspension piece 45 on the supporting airbag plate 44. This design not only provides a stable support structure, but also disperses the weight of the booster pump 3 through segmented suspension, avoiding the problem of local overpressure of the airbag 4 caused by excessive force on a single point, ensuring that the airbag 4 has good elasticity to absorb vibration and reduce noise. In addition to the above benefits, the segmented suspension method is adopted to "disperse the weight of the booster pump 3 and reduce the average pressure of the booster pump 3 on the airbag 4". It can also effectively reduce the inflation resistance when "the stiffness adjustment component 5 replenishes gas in the air chamber 42 of the airbag 4", and can avoid the occurrence of "when the stiffness adjustment component 5 extracts and releases gas from the air chamber 42 of the airbag 4, the airbag 4 is under excessive pressure and the gas overflows from the air chamber 42". It improves the suction accuracy of the stiffness adjustment component 5 on the air chamber 42, and makes the inflation stiffness adjustment process of the airbag 4 more precise.

[0044] To further enhance the vibration isolation and noise reduction capabilities of the opposed high-throughput booster pump 3, in this embodiment, a positioning sac plate 46 is integrally formed on the end of the support sac plate 44 that extends outward from the sac seat 43. This positioning sac plate 46 is formed with a positioning slot 47, and the end of the pump body 31 that is away from the pump head 32 is snap-fitted and positioned in the positioning slot 47. The positioning sac plate 46 and positioning slot 47 enable the booster pump 3 to be positioned longitudinally and bidirectionally in conjunction with the sac seat 43 and the mounting slot 41, reducing additional vibration caused by improper or loose installation of the booster pump 3.

[0045] Furthermore, in order to enhance the support and bottom vibration isolation performance of the vertical booster pump 3, in this embodiment, a limiting groove 12 is formed at the bottom of the accommodating chamber 11, and the bottom of the airbag body 4, that is, the bladder seat 43, is positioned in the limiting groove 12, and the limiting groove 12 performs horizontal lateral limitation on the bottom of the airbag body 4. By setting the limiting groove 12 to perform horizontal lateral limitation on the bladder seat 43, that is, the bottom of the airbag body 4, the displacement range of the bottom of the airbag body 4 during the vibration process can be limited, thereby reducing the transmission of vibration energy to other parts of the water purifier, and ensuring that the airbag body 4 maintains a certain shape and rigidity during the vibration process, thereby better absorbing and dispersing vibration energy, improving the overall vibration isolation performance, and helping to reduce the noise and vibration of the booster pump 3 during operation.

[0046] In addition to the vibration and noise generated by the booster pump 3 body, there is also vibration of the pump inlet and outlet pipes caused by the vibration of the booster pump 3 body, as well as vibration of the booster pump 3 inlet and outlet pipes caused by the pulse pressurization process. Since the inlet and outlet pipes are generally connected to other components, this vibration is extremely easy to be transmitted to the connected components. This will not only cause resonance of other components, but also cause water leakage and reliability risks at the interface. Therefore, it is necessary to reduce the vibration of the inlet and outlet pipes of the booster pump 3, which helps to reduce noise and improve reliability. In this regard, in this embodiment, the mounting groove 41 is provided with a sound insulation groove 413, and the inner wall of the sound insulation groove 413 at least partially abuts the waterway port 33 and the waterway pipe 34. The design of the sound insulation groove 413 enables the water port 33 and the water pipe 34 to fit in contact with the airbag body 4, forming an integrated connection between the airbag body 4, the water port 33 and the water pipe 34. The airbag body 4 absorbs and isolates the vibration of the booster pump 3 body and its inlet and outlet pipes, significantly reducing the impact of these vibrations on other connecting components, thereby reducing resonance, reducing the risks of loose interfaces and water leakage caused by vibration, and improving the overall reliability and service life of the system.

[0047] The following specifically introduces the structural composition and connection method of the solution of "the stiffness adjustment component 5 adjusts the inflation stiffness of the airbag body 4".

[0048] The airbag 4 is provided with an air inlet nozzle 48 and an air outlet nozzle 49, each connected to the air chamber 42. The stiffness adjustment assembly 5 includes an air pump 51 and an exhaust valve 52. The output end of the air pump 51 is connected to the air inlet nozzle 48 for pumping gas into the air chamber 42. The input end of the exhaust valve 52 is connected to the exhaust nozzle 49 for discharging gas from the air chamber 42. During operation, when the throughput of the booster pump 3 increases, the working pressure increases, and the generated vibration frequency becomes higher, the air pump 51 can replenish gas into the air chamber 42 of the airbag 4 through the air inlet nozzle 48, inflating the air chamber 42 and increasing the stiffness of the airbag 4. When the throughput of the booster pump 3 decreases, the working pressure drops, and the generated vibration frequency becomes lower, the exhaust valve 52 can exhaust the air chamber 42 of the airbag 4 through the exhaust nozzle 49, causing the air chamber 42 to deflate and contract, reducing the stiffness of the airbag 4, so that the airbag 4 can adapt to the vibration suppression requirements under different working conditions.

[0049] The above-mentioned implementation structure of "inflating the airbag 4 through the air pump 51 and exhausting the airbag 4 through the exhaust valve 52" is not only simple and reliable, but also the functions of the stiffness adjustment component 5 to replenish gas and extract gas from the airbag 4 are independently realized by the air pump 51 and the exhaust valve 52 respectively, which can improve the adjustment response ability of the inflation stiffness of the airbag 4, so that the inflation stiffness of the airbag 4 can follow the changes in the working pressure of the booster pump 3, and realize rapid response adjustment.

[0050] To improve the structural stability of the airbag body 4 during the inflation and deflation of the air chamber 42, the present embodiment optimizes the positions of the air inlet nozzle 48 and the air outlet nozzle 49: the air inlet nozzle 48 is located at the bottom of the airbag body 4 (i.e., the bottom of the airbag seat 43) and communicates with the bottom end of the air chamber 42, while the air outlet nozzle 49 is located at the top of the airbag body 4 (i.e., the top of the positioning airbag plate 46) and communicates with the top end of the air chamber 42.

[0051] Through the above design, the air inlet is located at the bottom of the airbag 4 and connected to the bottom of the air chamber 42. This allows gas to enter the bottom of the air chamber 42 directly and efficiently during inflation. Given the rising nature of gas, bottom air inlet helps evenly distribute gas within the air chamber 42, thereby reducing the formation of bubbles and dead spots. In addition, the bottom air inlet design ensures that the bottom of the airbag 4 is supported and fixed first during inflation. This helps establish a stable bottom structure in the early stages of inflation, reduces bottom shaking or deformation caused by uneven inflation, and improves the vibration isolation stability of the airbag 4. The air outlet is located at the top of the airbag 4 and connected to the top of the air chamber 42. This allows the exhaust valve 52 to preferentially exhaust gas from the top of the air chamber 42 during exhaust. Since gas in the air chamber 42 is generally distributed more at the top and less at the bottom (especially during inflation), top exhaust helps to more quickly reduce the overall air pressure within the air chamber 42. At the same time, the top exhaust also reduces the disturbance of gas to other parts of the air chamber 42 during exhaust, maintaining the stability of the air chamber 42.

[0052] Furthermore, in this embodiment, a one-way valve is connected in series between the air inlet nozzle 48 and the air pump 51 to allow gas to enter the air chamber 42 in one direction. When the air pump 51 is operating, shut down, or malfunctions, the one-way valve prevents the gas in the air chamber 42 from flowing back into the air pump 51, thereby helping to maintain a stable air pressure within the airbag 4, improving inflation efficiency and the accuracy of adjusting the stiffness of the airbag 4.

[0053] Furthermore, in order to achieve automatic control, the water purifier provided in this embodiment also includes a control component 6, which includes a stiffness detector 61 and a controller 62; the stiffness detector 61 is connected to the airbag body 4 to detect the inflation stiffness of the airbag body 4; the signal input end of the controller 62 is connected to the booster pump 3 and the stiffness detector 61; the signal output end of the controller 62 is connected to the stiffness adjustment component 5, which is used to control the stiffness adjustment component 5 to extract or replenish gas from the air chamber 42.

[0054] During operation, the booster pump 3 can be connected through the controller 62 to read the motor speed or current of the booster pump 3, and monitor the working pressure of the booster pump 3. At the same time, the stiffness detector 61 is connected to the airbag 4 and the controller 62 to detect the stiffness of the airbag 4, and transmit the detection data to the controller 62 in real time. The controller 62 performs data processing and logical judgment. According to the working pressure of the booster pump 3 and the actual stiffness of the airbag 4, the controller 62 transmits a signal to the stiffness adjustment component 5 to drive the stiffness adjustment component 5 to replenish or extract gas from the air chamber 42 of the airbag 4, adjust the inflation stiffness of the airbag 4, and adjust the stiffness of the airbag 4 to the preset value of the stiffness of the "different working pressure conditions of the booster pump 3", thereby realizing automatic control of the stiffness of the airbag 4.

[0055] Specifically, the stiffness detector 61 can be selected in a variety of ways. In this embodiment, the stiffness detector 61 is preferably a barometric pressure sensor. During operation, the barometric pressure sensor communicates with the air chamber 42 of the airbag 4 and assesses the inflation stiffness of the airbag 4 by detecting the air pressure within the air chamber 42. Compared to other detection structures, the barometric pressure sensor can accurately measure the air pressure within the air chamber 42 in real time. The air pressure is directly related to the inflation state and stiffness of the airbag 4. Therefore, by monitoring the changes in the air pressure within the air chamber 42, the inflation stiffness of the airbag 4 can be more accurately assessed indirectly. In addition, to improve the accuracy and stability of automatic control and airbag 4 stiffness adjustment and prevent single sensor failure from resulting in unsatisfactory system noise reduction, the stiffness detector 61 may also include a deformation sensor or a displacement sensor. During operation, the deformation sensor or displacement sensor can be placed on the outer wall of the airbag 4 to assist in assessing the inflation stiffness of the airbag 4 by detecting the local deformation and displacement of the airbag 4 during inflation and deflation.

[0056] Note that the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are readily apparent to those skilled in the art without departing from the scope of protection of the present invention. Therefore, while the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the appended claims.

Claims

1. A booster pump assembly for pressurizing a fluid in a water purifier, characterized by: include: Booster pump (3) and air bag body (4); The air bag body (4) is provided with an air chamber (42) for storing gas; The airbag (4) is positioned inside the water purifier, and a mounting groove (41) is formed on the outside of the airbag (4); the booster pump (3) is mounted and positioned in the mounting groove (41), and the airbag (4) suspends and supports the booster pump (3), and blocks and suppresses mechanical vibration transmitted to the outside when the booster pump (3) is working, thereby reducing noise.

2. The booster pump assembly according to claim 1, wherein: The booster pump (3) is provided with a water port (33), the water port (33) is connected to a water pipe (34), the mounting groove (41) is provided with a sound insulation groove (413), and the inner wall of the sound insulation groove (413) at least partially abuts against the water port (33) and the water pipe (34).

3. The booster pump assembly according to claim 1, wherein: The inner wall of the installation groove (41) extends outward to form a plurality of positioning air ribs (411) for abutting and positioning the booster pump (3), and the positioning air ribs (411) are spaced apart from each other to form a plurality of heat dissipation channels (412).

4. The booster pump assembly according to claim 1, wherein: The airbag body (4) includes a bag seat (43) positioned at the bottom of the accommodating cavity (11), the bag seat (43) is formed with a mounting groove (41), and one end of the bag seat (43) away from the bottom of the accommodating cavity (11) is longitudinally extended to form a supporting bag plate (44), the supporting bag plate (44) is connected to the side wall of the accommodating cavity (11) and is provided with a hanging piece (45); the booster pump (3) includes a pump body (31) and a pump head (32) arranged at one end of the pump body (31); the pump head (32) is snap-fitted and positioned in the mounting groove (41); the pump body (31) is connected to the hanging piece (45).

5. The booster pump assembly according to claim 4, characterized in that: One end of the support bag plate (44) away from the bag seat (43) extends outward to form a positioning bag plate (46), and the positioning bag plate (46) is formed with a positioning groove (47). One end of the pump body (31) away from the pump head (32) is clamped and positioned in the positioning groove (47).

6. The booster pump assembly according to any one of claims 1 to 5, characterized in that: It also includes a stiffness adjustment component (5), which is connected to the air chamber (42) and is used to extract or replenish the internal gas of the air chamber (42) to adjust the inflation stiffness of the airbag body (4).

7. The booster pump assembly according to claim 6, wherein: The airbag body (4) is provided with an air inlet nozzle (48) and an air outlet nozzle (49) respectively connected to the air chamber (42); the stiffness adjustment component (5) includes an air pump (51) and an exhaust valve (52), the air pump (51) is connected to the air inlet nozzle (48) and is used to inflate the air chamber (42); the exhaust valve (52) is connected to the air outlet nozzle (49) and is used to discharge the gas in the air chamber (42).

8. The booster pump assembly according to claim 7, wherein: The air inlet nozzle (48) is arranged at the bottom of the airbag body (4) and communicates with the bottom end of the air chamber (42), and the air outlet nozzle (49) is arranged at the top of the airbag body (4) and communicates with the top end of the air chamber (42).

9. The booster pump assembly according to claim 7, wherein: A one-way valve is connected in series between the air inlet nozzle (48) and the air pump (51) to allow gas to enter the air chamber (42) in one direction.

10. The booster pump assembly according to claim 6, wherein: The invention also includes a control component (6), wherein the control component (6) includes a stiffness detector (61) and a controller (62); the stiffness detector (61) is connected to the airbag (4) for detecting the stiffness of the airbag (4); the signal input end of the controller (62) is connected to the booster pump (3) and the stiffness detector (61); the signal output end of the controller (62) is connected to the stiffness adjustment component (5) for controlling the stiffness adjustment component (5) to pump or replenish gas in the air chamber (42).

Images