Water purifier and noise reduction device thereof

Abstract

The embodiment of the invention provides a water purifier. The water purifier comprises a body and a noise reduction device, the noise reduction device comprises a shell and a vibration reduction assembly, and a fluid channel is formed between the vibration reduction assembly and the inner wall face of the shell. The vibration reduction assembly comprises a cavity and a damping piece, and the damping piece is contained in the cavity. In the embodiment of the invention, when water flow passes through the conveying pipeline and vibrates, the damping piece can reduce water flow vibration and noise according to the self mass and inertia effect. Meanwhile, when the number of the damping pieces is multiple, the damping pieces can move correspondingly and mutually along with water flow and / or vibration during operation of the water purifier, vibration energy is generated, the noise reduction effect of the water purifier is effectively improved, and the problems of vibration and noise which are difficult to overcome by a common water purifier are solved.

Description

Technical Field

[0001] The present application relates to the field of water purifiers, and in particular to a water purifier and a noise reduction device thereof. Background Art

[0002] When the water purifier is in operation, the internal booster pump, filter element, water pipe and other components will generate water flow, mechanical and vibration noise, which seriously affects the user experience. Among them, the booster pump is one of the main sources of noise. In addition to generating vibration during operation, it will also cause the entire water purifier to generate noise. At the same time, the booster pump pumps water out in a pulsed form, causing the water flow to radially impact the inner wall of the water pipe at an uneven speed, which not only causes vibration and noise in the pipeline, but also affects the service life of the pipeline over a long period of time. Summary of the invention

[0003] Multiple aspects of the present application provide a water purifier and a noise reduction device thereof, wherein the noise reduction device is used to alleviate the impact of water flow to reduce the noise generated during the operation of the water flow and the water purifier.

[0004] The embodiment of the present application provides a water purifier, comprising a body and a noise reduction device. The body is provided with a water pipeline. The noise reduction device comprises a shell and a vibration reduction component, the shell has a water inlet and a water outlet connected to the water pipeline, the vibration reduction component is arranged in the shell, and a fluid channel is formed between the shell and the inner wall surface. The vibration reduction component comprises a cavity and a damping member, and the damping member is arranged in the cavity.

[0005] In some embodiments, the vibration reduction assembly further comprises an elastic body, which is arranged on a side of the cavity facing the water inlet and forms a closed space with the cavity. The damping member is located in the closed space, wherein the elastic body comprises a sac portion protruding toward the water inlet, the sac portion has a displacement stroke moving from an initial position toward the closed space to a compressed position, and can float within the displacement stroke.

[0006] In some embodiments, the cavity has an opening, and a stepped structure is provided on the wall surface of the cavity located in the opening. The elastic body also includes a supporting portion arranged around the outer periphery of the sac portion, the supporting portion is arranged on the stepped structure, and closes the opening with the sac portion.

[0007] In some embodiments, the noise reduction device further includes a sealing gasket, which surrounds the bag portion and abuts against the support portion, wherein a plurality of notches are provided on a side of the sealing gasket facing away from the support portion, and the water inlet and the fluid channel are connected through the notches.

[0008] In some embodiments, the vibration reduction assembly further includes a cover body, which is composed of a buffer material. The cover body is disposed in the enclosed space and isolates the damping element and the elastic element.

[0009] In some embodiments, the vibration damping assembly further includes a vibration damping pad, the cover body includes a filling port and a receiving groove connected to the filling port, the cover body is covered on the vibration damping pad through the filling port, and the damping member is disposed in the receiving groove.

[0010] In some embodiments, a side of the cover body facing the elastic body is provided with a plurality of slots arranged at intervals, the plurality of slots correspond to the connection between the bag portion and the support portion, and are connected to the enclosed space.

[0011] In some embodiments, the damping element is contained in the cavity in the form of a single sphere or cylinder or a plurality of stacked weights, or is filled in the cavity in the form of a plurality of spherical particles.

[0012] In some embodiments, the shell includes a first joint and a second joint, the water inlet and the water outlet are respectively arranged on the first joint and the second joint, and the second joint is also provided with an assembly groove connected to the water outlet, wherein a plurality of brackets are arranged in the assembly groove, the plurality of brackets are arranged at intervals, and the fluid channel is divided into a plurality of sub-channels, wherein each of the brackets includes a limiting section and a bending section, which extend axially and radially along the second joint respectively, and the cavity is supported on the bending sections of the plurality of brackets, and is limited between the limiting sections.

[0013] The embodiment of the present application also provides a water purifier, including a body and a vibration reduction assembly. The body is provided with a water pipeline. The vibration reduction assembly is arranged in the water pipeline and forms a fluid channel with the water pipeline, the vibration reduction assembly includes a cavity and an elastomer, the elastomer is arranged on the cavity and forms a closed space with the cavity, wherein the elastomer corresponds to the water inlet of the water pipeline and is provided with a sac portion protruding toward the water inlet, the sac portion has a displacement stroke moving from an initial position toward the closed space to a compression position, and can float within the displacement stroke.

[0014] The embodiment of the present application also provides a noise reduction device, including a shell and a vibration reduction assembly. The shell has a water inlet and a water outlet that are connected. The vibration reduction assembly is arranged in the shell, and a fluid channel is formed between the shell and the vibration reduction assembly. The vibration reduction assembly includes a cavity and a damping member, and the damping member is arranged in the cavity.

[0015] In addition, in some embodiments of the present application, the vibration reduction assembly is also provided with a cover and a vibration reduction pad. The damping member is arranged in the receiving groove of the cover and is covered by the cover and the vibration reduction pad, wherein the damping member can be composed of a single component or a plurality of components, such as a single sphere, a cylinder, a plurality of counterweights, a plurality of spheres and one of their combinations. In this way, when the vibration generated by the water flow and the operation of the water purifier is transmitted to the damping member, since the damping member has a larger mass than other components, it can absorb the motion energy in the receiving groove, so that the kinetic energy generated by the impact of the water flow is lost before being transmitted to the water pipeline, thereby suppressing the vibration of the water pipeline. At the same time, the cover and the vibration reduction pad can also effectively absorb the impact energy to achieve the effect of reducing noise and vibration. In addition, in the embodiment where the damping member is a plurality of particles, the vibration energy can be consumed at the same time by the mutual collision of the plurality of particles in the vibrating state, thereby suppressing the vibration and transmission of the water pipeline and effectively reducing the noise.

[0016] Therefore, according to the water purifier and noise reduction device provided by the embodiment of the present application, when the water flow impacts the vibration reduction component in the water pipeline and generates vibration, the damping member of the vibration reduction component has the characteristic of large mass, so that the damping member and the water pipeline generate different vibration frequencies, and there is an inertia difference, thereby consuming the vibration energy of the water pipeline in the radial direction and suppressing the radial vibration of the water pipeline. At the same time, in the embodiment provided with an elastomer, the sac of the elastomer absorbs the impact of the water flow at the water inlet, achieving the effect of buffering the axial water flow, and can simultaneously achieve the effect of buffering the water flow in the axial direction and reducing the axial vibration of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 This is a schematic diagram of a water purifier according to an embodiment of the present application.

[0019] Figure 2 It is a schematic diagram of an exploded view of a noise reduction device according to an embodiment of the present application.

[0020] Figure 3 This is a schematic diagram of a second connector according to an embodiment of the present application.

[0021] Figure 4 2 is a cross-sectional view of a noise reduction device according to an embodiment of the present application.

[0022] Figure 5 This is a schematic diagram of the capsule portion of an embodiment of the present application being located at an initial position.

[0023] Figure 6 This is a schematic diagram of the bladder portion of an embodiment of the present application being in a compressed position.

[0024] Figure 7 This is a cross-sectional view of a noise reduction device according to another embodiment of the present application.

[0025] Figure 8 This is a cross-sectional view of a noise reduction device according to another embodiment of the present application. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0027] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0028] See also Figures 1 to 6 The water purifier 1 provided in the embodiment of the present application includes a body 70 and a noise reduction device 100. A booster pump, a filter element and a water delivery pipeline 71 are arranged inside the body 70. The booster pump and the filter element are respectively connected to the water delivery pipeline 71, and the water in the water delivery pipeline 71 can be pressurized and filtered to achieve the effect of purifying and delivering water.

[0029] The noise reduction device 100 includes a shell 10 and a vibration reduction assembly 20. The shell 10 is used to be connected to the water supply pipeline 71, and has a water inlet 11 and a water outlet 12, wherein the shell 10 includes an axial Y and a radial X that are perpendicular to each other, and the water inlet 11 and the water outlet 12 can be but are not limited to being arranged along the axial Y, and are respectively connected to the water supply pipeline 71. The vibration reduction assembly 20 is arranged in the shell 10, and a fluid channel S1 is formed between the shell 10 and the inner wall surface of the shell 10. In some embodiments of the present application, the shell 10 includes a first joint 101 and a second joint 102. The water inlet 11 and the water outlet 12 are respectively arranged on the first joint 101 and the second joint 102, and the vibration reduction assembly 20 is coaxially arranged with the water inlet 11 and the water outlet 12 along the axial Y.

[0030] The vibration reduction assembly 20 includes a cavity 21, an elastomer 22 and a damping member 23. The elastomer 22 is composed of a material (such as rubber) that can be compressed and deformed and has elastic reset ability. It is arranged on the side of the cavity 21 facing the water inlet 11, and corresponds to the water inlet of the water supply pipeline 71 in the axial direction Y. Among them, an air bag, that is, a closed space S2, is formed between the elastomer 22 and the cavity 21. The elastomer 22 includes a sac portion 221 (such as an arc shape) protruding toward the water inlet 11. The sac portion 221 can have a displacement stroke from the initial position P1 toward the closed space S2 to the compression position P2 due to the material property of the elastomer 22 that can be compressed and deformed and restored, and can float within the axial displacement stroke. For example, from the side protruding toward the water inlet 11, it is recessed into the cavity 21, and the structural morphology can be transformed between the protruding state and the recessed state. It is understandable that when the water flows from the water inlet 11 to the elastic body 22, it will first contact the bladder 221 along the axial direction Y, so that the bladder 221 is impacted by the water flow and deforms from the initial position P1 to the compressed position P2. The elastic deformation of the bladder 221 can effectively absorb and disperse the impact of the pulsed water flow generated by the booster pump, thereby reducing the flow rate of the water flow and preventing the uneven water flow from directly hitting the inner wall of the pipeline in the radial direction X, thereby effectively alleviating the noise and vibration caused by the impact of the water flow.

[0031] In this embodiment, the damping member 23 is a metal member, and the number is one or more, for example, in the form of a plurality of spherical particles filled in the cavity 21, and filled as much as possible to make full use of the space in the cavity 21, thereby increasing the overall mass. Therefore, when the liquid flows in the water delivery pipeline 71 and causes the pipeline to vibrate, the damping member 23 has a large total mass and a large inertia, making it difficult for the pipeline to drive the damping member 23 to vibrate synchronously. Therefore, the damping member 23 can consume the energy generated by the pipeline vibration due to the inertia difference with the pipeline, thereby quickly reducing the pipeline vibration. Among them, the plurality of damping members 23 will collide and displace with each other when the pipeline vibrates, that is, they can move in the closed space S2, so that while the damping member 23 suppresses the vibration through its own mass, it absorbs the energy of the water flow and the booster pump through the mutual movement of the plurality of spherical particles inside, and further reduces the vibration of the water delivery pipeline 71.

[0032] Therefore, in the application of the noise reduction device 100 provided in the embodiment of the present application, when the water flows from the water inlet 11 of the housing 10 to the elastic body 22 of the vibration reduction assembly 20 along the axial direction Y, the bladder portion 221 of the elastic body 22 is impacted by the water flow and deforms from the initial position P1 to the compression position P2, thereby achieving the effect of buffering the impact force of the water flow in the axial direction Y to maintain the stability of the water flow. In this process, the vibration generated by the water flow, the booster pump or other internal machinery is transmitted to the damping member 23, and the damping member 23 can move in the closed space S2 to absorb and disperse the vibration energy, thereby reducing the conduction of noise and vibration.

[0033] For example, by means of the mass and inertia of the damping member 23, the vibration frequency of the water pipeline 71 is lower than that of the water pipeline 71, or the vibration frequency of the water pipeline 71 is reversed to the vibration frequency of the water pipeline 71, so as to suppress the energy transfer and slow down and offset the shaking of the water pipeline 71 in the radial direction X. Alternatively, when the damping member 23 includes a plurality of spherical particles, the transmission of the vibration energy is absorbed and dispersed by the mutual collision between the plurality of spherical particles to prevent the shaking of the water pipeline 71 in the radial direction X. In this way, in addition to absorbing and dispersing the impact of the pulsed water flow in the axial direction Y through the elastic body 22, the vibration reduction assembly 20 can also suppress the transmission of the vibration energy in the radial direction X through the damping member 23, and at the same time has the effect of buffering the impact of the water flow in the axial direction Y and suppressing the vibration of the water pipeline 71 in the radial direction X, so that the water purifier 1 has a more silent operation mode and improves the user experience.

[0034] Ginseng Figure 1 The cavity 21 is provided with an opening 211 on one side facing the water inlet 11, and a stepped structure 212 is provided on the wall surface inside the opening 211. The elastic body 22 further includes a supporting portion 222 arranged around the outer periphery of the bag portion 221. When the elastic body 22 covers the opening 211, the supporting portion 222 is correspondingly arranged on the stepped structure 212, and closes the opening 211 with the bag portion 221 to ensure the tightness of the enclosed space S2.

[0035] In addition, in order to ensure that the elastomer 22 and the cavity 21 can be stably connected, in this embodiment, the noise reduction device 100 also includes a sealing gasket 30 sleeved on the elastomer 22. The sealing gasket 30 can be but is not limited to being composed of a rubber material. The sealing gasket 30 is arranged on the support portion 222 and surrounds the sac portion 221, and is respectively pressed between the support portion 222 and the housing 10, and the support portion 222 can be tightly pressed on the step structure 212 to ensure the sealing of the closed space S2 formed by the elastomer 22. Among them, the sealing gasket 30 is also provided with a plurality of notches 31 on the side facing away from the support portion 222, which correspond to the sac portion 221 respectively, and connect the water inlet 11 and the fluid channel S1. In this way, without increasing the structural size of the noise reduction device 100, the activity space of the sac portion 221 in the housing 10 can be increased, and at the same time, the flow of the fluid in the fluid channel S1 is not affected.

[0036] The vibration reduction assembly 20 also includes a cover 24, which is composed of a buffer material, such as a rubber material or a silicone material. The cover 24 is arranged in the enclosed space S2 to isolate the damping member 23 and the elastomer 22. Therefore, when the water purifier 1 is in operation, the vibration generated by the water flow or the booster pump will be transmitted to the damping member 23, so that the damping member 23 hits the cover 24 or the spherical particles hit each other. It can be understood that since the cover 24 is a buffer material, it can effectively absorb the impact energy of the damping member 23 and disperse it on the cover 24, thus helping to reduce noise and vibration. In addition, through the mutual collision of the spherical particles in a vibrating state, the energy of the vibration can also be consumed at the same time, suppressing the vibration and transmission of the water pipeline 71 in the radial direction X, and effectively reducing noise.

[0037] The vibration reduction assembly 20 also includes a vibration reduction pad 26, and the cover body 24 includes a filling port 241 and a receiving groove 242 connected to the filling port 241. The vibration reduction pad 26 can be, but is not limited to, a cushioning material such as foam or rubber, and is disposed at the bottom of the cavity 21. The cover body 24 covers the vibration reduction pad 26 through the filling port 241, so that the damping member 23 is enclosed and wrapped in the receiving groove 242. Since the damping member 23 is covered by the cover body 24 and the vibration reduction pad 26, when the damping member moves and collides in the receiving groove 242, the provision of the vibration reduction pad 26 can prevent the damping member 23 from colliding with the bottom of the cavity 21 to form noise and vibration, thereby further providing noise reduction and shock absorption effects.

[0038] See also Figures 2 to 5 , similar to the notch of the sealing gasket 30, a plurality of slots 243 arranged at intervals are provided on the side of the cover body 24 facing the elastic body 22. The plurality of slots 243 correspond to the connection between the capsule part 221 and the support part 222, and are connected to the closed space S2. It should be noted that the function of the plurality of slots 243 is to keep the elastic body 22 connected to the space in the cavity 21, so as to increase the closed space S2 and improve the rebound stroke of the capsule part 221. At the same time, the deformation of the cover body 24 can also be increased, so that the cover body 24 can be inserted into the cavity 21 in a tight fit.

[0039] The first joint 101 is provided with a groove 1011 for installing the O-ring 80, and the second joint 102 is provided with an assembly groove 1021 connected to the water outlet 12. In terms of installation, one end portion of the first joint 101 is sleeved in the assembly groove 1021, and the first joint 101 and the second joint 102 can be fixed to each other by means of, but not limited to, screw locks or welding. In addition, when the first joint 101 and the second joint 102 are assembled, the first joint 101 is located at one end in the assembly groove 1021, and its end face can press the sealing gasket 30, and the support portion 222 is tightly pressed on the stepped structure 212 to ensure the high air density of the enclosed space S2. The first joint 101 also has a nozzle 1012 connected to the water inlet 11 and extending to the elastic body 22, and the nozzle 1012 extends to the center of the capsule 221 facing the elastic body 22, and extends to the vicinity of the capsule 221, thereby controlling the position and range of the water flow formed by the pulse to impact the capsule 221. At the same time, by adjusting the length and diameter of the nozzle 1012, the amount and speed of water flowing toward the bag portion 221 can be controlled.

[0040] like Figure 2 and Figure 5 As shown, a plurality of brackets 1022 are also arranged around the assembly groove 1021. The plurality of brackets 1022 are arranged at intervals in the assembly groove 1021, and the fluid channel S1 is divided into a plurality of secondary channels S11. Each bracket 1022 includes a limiting section 1022A and a bending section 1022B, the limiting section 1022A extends along the axial direction of the second joint 102, and the bending section 1022B extends along the radial direction X of the second joint 102, so that the plurality of brackets 1022 form a fixed seat in the second joint 102 for fluid circulation and for the cavity 21 to be placed. Therefore, the cavity 21 is detachably supported on the bending sections 1022B of the plurality of brackets 1022, and is limited between the limiting sections 1022A. In this way, the cavity 21 can be stably installed in the assembly groove 1021, and the fluid channel S1 is kept connected with the water outlet 12 through the design of the secondary channel S11.

[0041] like Figure 6 As shown, when the water flow (such as Figure 6 When the water flows from the water inlet 11 to the elastic body 22 (the dotted line in the figure), the bladder 221 is impacted by the water flow and deforms toward the compression position P2, thereby achieving the effect of buffering the impact of the water flow. Then, the water flow can pass through the notch 31 of the sealing gasket 30, flow through the fluid channel S1 and the secondary channel S11 located on the periphery of the noise reduction device 100, and finally flow to the water outlet 12.

[0042] In addition, in the assembly process of the embodiment of the present application, the damping member 23 can be first placed in the receiving groove 242 of the cover body 24 and the filling port of the receiving groove can be closed by the vibration-damping pad 26, and then the cover body 24 equipped with the damping member 23 can be embedded in the cavity 21 as a whole. Next, the cavity 21 is installed in the assembly groove 1021 of the second joint 102, and the elastic body 22 is arranged on one side of the cavity 21, and the sealing gasket 30 is inserted into the elastic body 22. Finally, the end of the first joint 101 with the O-ring 80 is inserted into the second joint 102, and the first joint 101 and the second joint 102 are fixed by screws or welding, so that the end face of the first joint 101 presses the sealing gasket 30, forcing the sealing gasket 30 to squeeze the support part 222 and fix it on the stepped structure 212, so that a highly airtight closed space S2 is formed between the cavity 21 and the elastic body 22.

[0043] The water purifier 1 provided in another embodiment of the present application is substantially the same as the water purifier 1 in the above embodiment, except that the damping member 23 in this embodiment is a sphere, and the sphere can substantially fill the space of the receiving groove 242. Since the damping member 23 has a large mass and a large inertia, the vibration of the water delivery pipeline 71 can be suppressed. Figure 7 As shown, on the basis of the above-mentioned embodiment, a groove 244 can be arranged around the inner circumference of the cover body 24, and a sphere with a volume slightly smaller than the accommodating groove 242 can be arranged. Through the design of the groove 244, the sphere can be guided to rotate around the axis of the cover body 24, and the vibration can be further offset by the rotation, and the impact of the damping member 23 on the cover body 24 or the vibration-damping pad 26 can be reduced.

[0044] See also Figure 8. It is worth noting that, since the damping member 23 is composed of a material with a mass greater than that of the water pipeline, the vibration of the water pipeline can be suppressed by its own mass and inertia of motion. Therefore, in the noise reduction device 100 provided in other embodiments of the present application, the vibration reduction assembly 20 may only include a cavity 21 and a damping member 23 accommodated in the cavity 21, and the configuration of the elastic body 22 is omitted. For example, in some embodiments of the present application, the damping member 23 is accommodated in the cavity 21 in the form of a single sphere, a cylinder or a stack of multiple counterweights composed of metal materials. Among them, when the damping member 23 is configured in the form of multiple counterweights, the number of counterweights can be increased or decreased according to different application scenarios, considering the overall weight of the water pipeline 71 or the noise reduction device 100, so that the weight distribution can be adjusted flexibly. In some other embodiments of the present application, the number of damping members 23 is multiple, for example, in the form of multiple spherical particles filled in the cavity 21, and filled as much as possible, thereby increasing the overall mass. The spherical particles may be metal balls or fine sand, etc., but are not limited thereto. It should be noted that the damping member 23 is wrapped by the cover 24 and the vibration-damping pad 26 and embedded in the cavity 21. Since the cover 24 is made of a buffer material, when there is a gap between the cover 24 and the internal damping member 23, the side of the cover 24 facing the water inlet 11 can be subjected to water flow impact, thereby replacing a separate elastic body setting and reducing water flow impact, thereby simplifying the vibration-damping component structure.

[0045] It can be seen from the above description that the embodiments of the present application form a closed space through an elastomer and a cavity, and a cover body, a vibration-damping pad and a damping member are arranged in the closed space. When the water flow in the form of a pulse enters the water inlet, the radial impact of the water flow is absorbed and reduced through the elastic deformation of the bag; at the same time, the vibration of the pipeline caused by the impact of the water flow is reduced and suppressed by the damping member, and the pipeline noise generated during the operation of the water purifier is effectively reduced through the cooperation of the elastic member and the damping member. In addition, in some embodiments of the present application, the shell in the noise reduction device can also be integrated with the delivery pipeline, that is, the vibration-damping assembly 20 is arranged in the delivery pipeline of the water purifier, and the delivery pipeline replaces the shell setting and the configuration of the additional shell is omitted. For example, after the vibration-damping assembly is built into the connection between the two sections of the water delivery pipeline, the two sections of the water delivery pipeline are connected into one.

[0046] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A water purifier, characterized in that: include: The main body is provided with a water delivery pipeline; as well as The noise reduction device comprises a shell and a vibration reduction assembly, wherein the shell has a water inlet and a water outlet connected to the water delivery pipeline, and the vibration reduction assembly is arranged in the shell and forms a fluid channel with the inner wall surface of the shell; Wherein, the vibration reduction assembly includes a cavity and a damping member, the cavity corresponds to the water inlet, and the damping member is arranged in the cavity.

2. The water purifier according to claim 1, characterized in that The vibration reduction assembly also includes an elastomer, which is arranged on a side of the cavity facing the water inlet and forms a closed space with the cavity, and the damping member is located in the closed space, wherein the elastomer includes a sac portion protruding toward the water inlet, and the sac portion has a displacement stroke moving from an initial position toward the closed space to a compression position, and can float within the displacement stroke.

3. The water purifier according to claim 2, characterized in that: The cavity has an opening, and a stepped structure is arranged on the wall surface of the cavity located in the opening. The elastomer also includes a supporting portion arranged around the outer periphery of the bag portion, the supporting portion is arranged on the stepped structure, and closes the opening together with the bag portion.

4. The water purifier according to claim 3, characterized in that: The noise reduction device further comprises a sealing gasket, which surrounds the bag portion and abuts against the support portion, wherein a plurality of notches are arranged on a side of the sealing gasket facing away from the support portion, and the water inlet and the fluid channel are connected through the notches.

5. The water purifier according to claim 3, characterized in that: The vibration reduction assembly also includes a cover body, which is composed of a buffer material. The cover body is arranged in the enclosed space and isolates the damping member and the elastic member.

6. The water purifier according to claim 5, characterized in that The vibration reduction assembly further includes a vibration reduction pad, the cover body includes a filling port and a receiving groove connected to the filling port, the cover body is covered on the vibration reduction pad through the filling port, and the damping member is arranged in the receiving groove.

7. The water purifier according to claim 5, characterized in that A plurality of slots arranged at intervals are provided on one side of the cover body facing the elastic body. The plurality of slots correspond to the connection between the bag portion and the support portion and are connected to the enclosed space.

8. The water purifier according to claim 1, characterized in that The damping member is contained in the cavity in the form of a single sphere or cylinder or a plurality of stacked counterweights, or is filled in the cavity in the form of a plurality of spherical particles.

9. The water purifier according to claim 1, characterized in that: The shell includes a first joint and a second joint, the water inlet and the water outlet are respectively arranged on the first joint and the second joint, and the second joint is also provided with an assembly groove connected to the water outlet, and a plurality of brackets arranged at intervals are arranged in the assembly groove to divide the fluid channel into a plurality of sub-channels, wherein each of the brackets includes a limiting section and a bending section, which extend along the axial direction and radial direction of the second joint respectively, and the cavity is supported on the bending sections of the plurality of brackets and is limited between the limiting sections.

10. A water purifier, characterized in that: include: The main body is provided with a water delivery pipeline; as well as A vibration-damping component is arranged in the water pipeline and forms a fluid channel with the water pipeline. The vibration-damping component includes a cavity and an elastomer. The elastomer is arranged on the cavity and forms a closed space with the cavity. The elastomer corresponds to the water inlet of the water pipeline and is provided with a sac portion protruding toward the water inlet. The sac portion has a displacement stroke from an initial position toward the closed space to a compression position and can float within the displacement stroke.

11. A noise reduction device, characterized in that: Suitable for installation on a water pipeline, the noise reduction device comprises: A housing having a water inlet and a water outlet connected to each other; and The vibration reduction assembly is arranged in the shell and forms a fluid channel with the shell. The vibration reduction assembly includes a cavity and a damping member, and the damping member is arranged in the cavity.

12. The noise reduction device according to claim 11, characterized in that: The vibration reduction assembly also includes an elastomer, which is arranged on a side of the cavity facing the water inlet and forms a closed space with the cavity, and the damping member is located in the closed space, wherein the elastomer includes a sac portion protruding toward the water inlet, and the sac portion has a displacement stroke moving from an initial position toward the closed space to a compression position, and can float within the displacement stroke.

13. The noise reduction device according to claim 12, characterized in that: The cavity has an opening, and a stepped structure is arranged on the wall surface of the cavity located in the opening. The elastomer also includes a supporting portion arranged around the outer periphery of the bag portion, the supporting portion is arranged on the stepped structure, and closes the opening together with the bag portion.

14. The noise reduction device according to claim 11, characterized in that: The vibration reduction assembly also includes a cover body and a vibration reduction pad made of buffer material, wherein the cover body is arranged in the cavity and isolates the damping member and the water inlet, wherein the cover body includes a filling port and a receiving groove connected to the filling port, the cover body is covered on the vibration reduction pad through the filling port, and the damping member is arranged in the receiving groove.

15. The noise reduction device according to claim 11, characterized in that: The damping member is contained in the cavity in the form of a single sphere or cylinder or a plurality of stacked counterweights, or is filled in the cavity in the form of a plurality of spherical particles.

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