Noise reduction throttle valve and water purifier comprising same

Abstract

The utility model provides a noise reduction throttle valve and a water purifier comprising the same, a water inlet of the noise reduction throttle valve is communicated with a waste water outlet of the water purifier, a water outlet of the noise reduction throttle valve is communicated with a drainage pipe, the noise reduction throttle valve comprises a shell, a water inlet and a water outlet, the shell is internally provided with a flow channel for water flow to flow through; the end, extending into the flow channel, of the water inlet pipe is a closed end, the water inlet is formed in the end, located outside the flow channel, of the water inlet pipe, the water inlet pipe deviates from the axis of the flow channel, and a plurality of first openings are formed in the pipe wall, close to the closed end, of the water inlet pipe; the end, extending into the flow channel, of the water outlet pipe is a closed end, the water outlet is formed in the end, located outside the flow channel, of the water outlet pipe, and / or the water outlet pipe deviates from the axis of the flow channel, and a plurality of second openings are formed in the pipe wall, close to the closed end, of the water outlet pipe. The water flow speed is reduced in a bypassing mode, and noise is reduced.

Description

Technical Field

[0001] This utility model specifically relates to a noise-reducing throttling valve and a water purifier containing the same. Background Technology

[0002] As reverse osmosis water purifiers become increasingly popular in the market, high-flow-rate water purifiers have become the mainstream. Now, a rather unusual problem has arisen: as the water production speed continues to increase, the flow rate of the wastewater valve is also increasing. This wastewater valve, also known as a throttling valve, is used at the outlet valve of the reverse osmosis membrane wastewater. Its outflow speed is generally quite fast, which causes the rapidly flowing wastewater to collide with the inner wall of the pipes inside the machine, producing a harsh, piercing noise. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defect in the prior art where wastewater collides with the inner wall of the pipe and generates noise when it is discharged, and to provide a noise-reducing throttling valve and a water purifier containing the same.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] A noise-reducing throttling valve, wherein the inlet of the noise-reducing throttling valve is connected to the wastewater outlet of a water purifier, and the outlet of the noise-reducing throttling valve is connected to a drain pipe, the noise-reducing throttling valve comprising:

[0006] A housing having a flow channel for water flow;

[0007] The water inlet pipe has a closed end that extends into the flow channel, and the water inlet is located at the end of the water inlet pipe that is outside the flow channel. The water inlet pipe is offset from the axis of the flow channel, and multiple first openings are provided on the pipe wall of the water inlet pipe near the closed end.

[0008] The water outlet pipe has a closed end that extends into the flow channel, and the water outlet is located at the end of the water outlet pipe that is outside the flow channel, and / or the water outlet pipe is located off the axis of the flow channel. Multiple second openings are provided on the pipe wall of the water outlet pipe near the closed end.

[0009] In this solution, by offsetting the inlet pipe from the axis of the flow channel, the water flows towards the axis of the flow channel before passing through, thus reducing the flow velocity and noise during wastewater discharge. Furthermore, the end of the inlet pipe extending into the flow channel is closed, obstructing the water flow and forcing it to flow into the flow channel through a first opening, further reducing the flow velocity and noise. Similarly, the outlet pipe is offset from the axis of the flow channel, also reducing the flow velocity and noise during wastewater discharge by obstructing the water flow. The end of the outlet pipe extending into the flow channel is closed, obstructing the water flow and forcing it to flow into the outlet pipe through a second opening, further reducing the flow velocity and noise. With the inlet and outlet pipes working together, noise is reduced or even eliminated, improving the user experience.

[0010] Preferably, a noise reduction unit is also provided in the flow channel, and the noise reduction unit is located on the outer periphery of the water inlet pipe and the water outlet pipe extending into the flow channel.

[0011] In this solution, a noise reduction unit is set up to reduce the water flow velocity and noise by cooperating with the inlet and outlet pipes. Furthermore, the noise is reduced from being transmitted to the outside of the casing by wrapping the inlet and outlet pipes.

[0012] Preferably, the noise reduction unit includes a first buffer section, the first buffer section having the same length as the flow channel, and the first buffer section being sleeved on the outer periphery of the water inlet pipe and the water outlet pipe extending into the flow channel.

[0013] In this solution, the above settings ensure that the length of the first buffer section is the same as that of the flow channel, thus avoiding the local transmission of noise when the first buffer section is shorter than the flow channel.

[0014] Preferably, the noise reduction unit further includes a second buffer section, the second buffer section having the same length as the flow channel, the second buffer section being sleeved on the outer periphery of the first buffer section and fitting against the inner wall of the flow channel.

[0015] In this solution, the above-mentioned configuration allows the water flow to be buffered by the second buffer section when it impacts the inner wall of the channel, preventing noise from being generated when the water flow velocity is too high.

[0016] Preferably, the first buffer part is sound-absorbing cotton, and the second buffer part is a silicone component.

[0017] In this solution, the noise reduction function is achieved through the above settings.

[0018] Preferably, the housing is provided with a first mounting groove and a second mounting groove. The first mounting groove is used to engage the sound-absorbing cotton, and the second mounting groove is used to engage the silicone part. The first mounting groove and the second mounting groove share the same sidewall, and the height of the sidewall of the first mounting groove away from the second mounting groove is higher than the height of the sidewall of the first mounting groove close to the second mounting groove.

[0019] In this solution, the above-mentioned settings form a foolproof structure, which facilitates the installation of sound-absorbing cotton and silicone parts and avoids the situation where the sound-absorbing cotton and silicone parts are installed in reverse.

[0020] Preferably, the housing includes a first outer shell and a second outer shell, the first outer shell and the second outer shell having an interface along the axial direction of the flow channel, and the interface between the first outer shell and the second outer shell being welded to form the housing.

[0021] In this solution, the noise reduction unit is installed inside the housing through the above-mentioned settings, and the sealing of the flow channel is ensured to prevent water leakage.

[0022] Preferably, the size of the second opening is larger than the size of the first opening.

[0023] In this solution, the above settings are used to ensure that the water pressure entering the outlet pipe is lower than the water pressure entering the inlet pipe, thereby reducing noise.

[0024] Preferably, the inlet pipe and the outlet pipe extend along different axial directions.

[0025] In this solution, the above settings are used to increase the water flow path within the channel, thereby further reducing the water flow velocity and noise.

[0026] A water purifier comprising a noise-reducing throttling valve as described above.

[0027] In this solution, the water purifier includes the aforementioned noise-reducing throttling valve to reduce noise when discharging large amounts of wastewater into the drain pipe, thereby improving the user experience.

[0028] The positive and progressive effects of this utility model are as follows: By setting the inlet pipe off-axis of the flow channel, compared to a pipe set along the flow channel axis, the water flows towards the flow channel axis first, reducing the water flow velocity by detouring, thereby mitigating the noise during wastewater discharge. Furthermore, by setting the end of the inlet pipe extending into the flow channel as a closed end, the water flow entering the inlet pipe is obstructed and flows into the flow channel through the first opening, further reducing the water flow velocity and noise. Similarly, by setting the outlet pipe off-axis of the flow channel, the water flow also detouring as it flows into the flow channel, reducing the water flow velocity and mitigating the noise during wastewater discharge. The end of the outlet pipe extending into the flow channel is also set as a closed end, obstructing the water flow entering the outlet pipe and flowing into the outlet pipe through the second opening, further reducing the water flow velocity and noise. With the inlet and outlet pipes working together, noise is reduced or even eliminated, thereby improving the user experience. Attached Figure Description

[0029] Figure 1 This is a perspective view of a noise-reducing throttling valve according to a preferred embodiment of the present invention.

[0030] Figure 2 This diagram shows the positional relationship between the inlet pipe and the outlet pipe in a preferred embodiment of the present invention.

[0031] Figure 3 This is a diagram showing the positional relationship between the first mounting slot and the second mounting slot in a preferred embodiment of the present invention.

[0032] Figure 4 This is a perspective view of the water inlet pipe according to a preferred embodiment of the present invention.

[0033] Figure 5 This is a perspective view of the water outlet pipe of a preferred embodiment of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] Casing 10

[0036] Flow channel 11

[0037] First outer shell 12

[0038] Second outer shell 13

[0039] Interface 14

[0040] Water inlet pipe 20

[0041] Inlet 21

[0042] First opening 22

[0043] 30 water outlet pipe

[0044] Outlet 31

[0045] Second opening 32

[0046] Noise reduction unit 40

[0047] First buffer section 41

[0048] Second buffer section 42

[0049] First mounting slot 50

[0050] Second mounting slot 60 Detailed Implementation

[0051] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0052] This embodiment provides a noise-reducing throttling valve, the specific structure of which is as follows: Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the inlet 21 of the noise-reducing throttling valve is connected to the wastewater outlet of the water purifier, and the outlet 31 of the noise-reducing throttling valve is connected to the drain pipe. The noise-reducing throttling valve includes:

[0053] The housing 10 has a flow channel 11 for water flow.

[0054] The inlet pipe 20 has a closed end that extends into the flow channel 11. The inlet port 21 is located at the end of the inlet pipe 20 that is outside the flow channel 11. The inlet pipe 20 is offset from the axis of the flow channel 11. Multiple first openings 22 are provided on the pipe wall of the inlet pipe 20 near the closed end.

[0055] The water outlet pipe 30 has a closed end that extends into the flow channel 11. The water outlet 31 is located at the end of the water outlet pipe 30 that is outside the flow channel 11, and / or the water outlet pipe 30 is set off from the axis of the flow channel 11. Multiple second openings 32 are provided on the pipe wall of the water outlet pipe 30 near the closed end.

[0056] Specifically, the shell 10 has a cylindrical structure and an internal cylindrical flow channel 11. The inlet pipe 20 and the outlet pipe 30 are both cylindrical pipes. The inlet pipe 20 is offset from the axis of the flow channel 11, i.e., they are not aligned. The end of the inlet pipe 20 that extends into the flow channel 11 is a closed end, i.e., a blind hole. Multiple first openings 22 are provided on the pipe wall of the inlet pipe 20 near the closed end. The first openings 22 are circular holes and are arranged around the inlet pipe 20. This embodiment also includes an outlet pipe 30. One end of the outlet pipe 30 that extends into the flow channel 11 is a closed end. Multiple second openings 32 are provided on the pipe wall of the outlet pipe 30 near the closed end. The second openings 32 are circular holes and are arranged around the outlet pipe 30. Water flows from the first opening 22 into the second opening 32 and is discharged into the drain pipe. By offsetting the inlet pipe 20 from the axis of the flow channel 11, compared to a pipe arranged along the axis of the flow channel 11, the water flow will initially flow towards the axis of the flow channel 11, reducing the water flow velocity by detouring, thereby mitigating the noise during wastewater discharge. Furthermore, by setting the end of the inlet pipe 20 that extends into the flow channel 11 as a closed end, the water flow entering the inlet pipe 20 is obstructed upon contact with the closed end and flows into the flow channel 11 through the first opening 22, further reducing the water flow velocity and correspondingly reducing the noise.

[0057] In other embodiments, the outlet pipe 30 is also offset from the axis of the flow channel 11. That is, while the inlet pipe 20 is offset from the axis of the flow channel 11, the outlet pipe 30 is also offset from the axis of the flow channel 11. When the water flows out of the inlet pipe 20, it first flows towards the axis of the flow channel 11, and then flows from the axis of the flow channel 11 towards the second opening 32 of the outlet pipe 30, which is offset from the axis of the flow channel 11. This increases the travel distance of the water flow within the flow channel 11, thereby reducing the water flow velocity and thus mitigating the noise during wastewater discharge. With the cooperation of the inlet and outlet pipes, the noise is reduced or even eliminated, improving the user experience.

[0058] In another embodiment, only the outlet pipe 30 is offset from the axis of the flow channel 11, while the inlet pipe 20 can be set coaxially with the axis of the flow channel 11. The water flow velocity is reduced by the outlet pipe 30 bypassing the water flow when it flows into the flow channel, so as to reduce the noise when the wastewater is discharged. This can also achieve the purpose of reducing water flow noise.

[0059] In this embodiment, a noise reduction unit 40 is also provided in the flow channel 11. The noise reduction unit 40 is located on the outer periphery of the water inlet pipe 20 and the water outlet pipe 30 extending into the flow channel 11.

[0060] Specifically, the inlet pipe 20 and the outlet pipe 30 are set off from the axis of the flow channel 11. A noise reduction unit 40 is sleeved on the outer periphery of the inlet pipe 20 and the outlet pipe 30 inside the flow channel 11. The noise reduction unit 40 is used to wrap the inlet pipe 20 and the outlet pipe 30 located inside the flow channel 11. In addition to the inlet pipe 20 and the outlet pipe 30 working together to reduce the water flow velocity and reduce noise, the noise emitted by the water flow is further reduced to be transmitted to the inner wall of the flow channel 11 and the shell 10 by wrapping the inlet pipe 20 and the outlet pipe 30, thereby reducing the noise transmitted from the shell 10 to the user.

[0061] Furthermore, in this embodiment, the noise reduction unit 40 includes a first buffer part 41, the first buffer part 41 having the same length as the flow channel 11, and the first buffer part 41 being sleeved on the outer periphery of the water inlet pipe 20 and the water outlet pipe 30 extending into the flow channel 11.

[0062] Specifically, the first buffer part 41 is a cylindrical structure and is sleeved on the outer periphery of the inlet pipe 20 and the outlet pipe 30 located in the flow channel 11. The size of the first buffer part 41 along the length of the flow channel 11 is the same as the length of the flow channel 11, so that the first buffer part 41 can wrap around each position along the length of the flow channel 11, thereby effectively wrapping the outer periphery of the inlet pipe 20 and the outlet pipe 30 located in the flow channel 11, and avoiding the situation where the first buffer part 41 is shorter than the flow channel 11 and some parts are not wrapped, thus preventing the transmission of noise.

[0063] In this embodiment, the noise reduction unit 40 further includes a second buffer part 42, which has the same length as the flow channel 11. The second buffer part 42 is sleeved on the outer periphery of the first buffer part 41 and fits against the inner wall of the flow channel 11.

[0064] Specifically, the second buffer part 42 is a cylindrical structure and is sleeved on the outer periphery of the first buffer part 41. Based on the first buffer part 41 effectively wrapping the outer periphery of the inlet pipe 20 and outlet pipe 30 within the flow channel 11 and reducing noise transmission, the second buffer part 42 is added to further block noise transmission to the inner wall of the flow channel 11 and the housing 10. Furthermore, the second buffer part 42 is fitted against the inner wall of the flow channel 11, buffering the water flow seeping from the first buffer part 41 and preventing the water flow from impacting the inner wall of the flow channel and generating noise. It also prevents water flow from impacting the inner wall of the flow channel 11 and generating noise when there is a gap between the inner wall of the flow channel 11 and the second buffer part 42.

[0065] In this embodiment, the first buffer part 41 is sound-absorbing cotton, and the second buffer part 42 is a silicone component.

[0066] Understandably, the sound-absorbing cotton is a noise reduction structure in the existing technology. The two ends of the sound-absorbing cotton abut against the inner walls of the two ends of the flow channel 11. The sound-absorbing cotton has a hollow structure inside, that is, there are several through holes inside the sound-absorbing cotton, and these through holes are messy and irregular. In this way, when water is sprayed onto the sound-absorbing cotton, the sound will be irregular and there will be no constant sharp high-frequency piercing sound.

[0067] The silicone parts are made of hard silicone, which is in the existing technology and has a hardness of 80 Shore A or higher. The two ends of the silicone parts abut against the inner walls of the two ends of the flow channel 11. This is the existing technology and will not be described in detail here.

[0068] In other embodiments, the first buffer portion 41 may also be a sponge, and the second buffer portion 42 may also be a rigid plastic tube.

[0069] like Figure 3 As shown, in this embodiment, the housing 10 is provided with a first mounting groove 50 and a second mounting groove 60. The first mounting groove 50 is used to snap on the sound-absorbing cotton, and the second mounting groove 60 is used to snap on the silicone part. The first mounting groove 50 and the second mounting groove 60 share the same side wall, and the height of the side wall of the first mounting groove 50 away from the second mounting groove 60 is higher than the height of the side wall of the first mounting groove 50 close to the second mounting groove 60.

[0070] Specifically, both the first mounting groove 50 and the second mounting groove 60 are annular grooves. Of course, based on the changes in the shape of the first buffer part 41 and the second buffer part 42, the shapes of the first mounting groove 50 and the second mounting groove 60 can also be changed accordingly, such as rectangular structures and rectangular grooves. The diameter of the second mounting groove 60 is larger than that of the first mounting groove 50, that is, the second mounting groove 60 is fitted onto the first mounting groove 50. Both the first mounting groove 50 and the second mounting groove 60 are located on the inner walls at both ends of the flow channel 11, so as to engage the two ends of the first buffer part 41 and the second buffer part 42, that is, the two ends of the sound-absorbing cotton and the silicone part, through the first mounting groove 50 and the second mounting groove 60.

[0071] Furthermore, the first mounting slot 50 and the second mounting slot 60 share the same sidewall. The sidewall of the first mounting slot 50 closest to the second mounting slot 60 is shared by both, reducing space occupation and simplifying the manufacturing process of the housing. The sidewall of the first mounting slot 50 furthest from the second mounting slot 60 is higher than the sidewall of the first mounting slot 50 closest to the second mounting slot 60, forming a foolproof structure within the housing 10. This allows installers to easily distinguish between the first mounting slot 50 and the second mounting slot 60, ensuring accurate insertion of the sound-absorbing cotton into the first mounting slot 50 and preventing the sound-absorbing cotton and silicone parts from being installed in reverse.

[0072] In this embodiment, the housing 10 includes a first outer shell 12 and a second outer shell 13. The first outer shell 12 and the second outer shell 13 are provided with an interface 14 along the axial direction of the flow channel 11. The interface 14 of the first outer shell 12 and the second outer shell 13 is formed by welding to form the housing 10.

[0073] Specifically, the first outer shell 12 and the second outer shell 13 are both cylindrical structures, and both are made of 304 stainless steel, a material commonly used in the prior art. Each end of the first outer shell 12 and the second outer shell 13 is provided with an interface 14. The interface 14 of the first outer shell 12 corresponds to the interface 14 of the second outer shell 13, and they are connected by argon arc welding. Compared to a one-piece molded shell 10, the split-type shell 10 allows the first buffer part 41 and the second buffer part 42 to be effectively placed into the flow channel 11 through the interface 14. The welded connection ensures the sealing of the flow channel 11, preventing water leakage, and also improves the reliability of the shell 10, preventing the interface 14 from breaking due to water flow impact.

[0074] In this embodiment, the size of the second opening 32 is larger than the size of the first opening 22.

[0075] Specifically, both the first opening 22 and the second opening 32 are circular holes, and the diameter of the second opening 32 is larger than the diameter of the first opening 22. According to the pressure formula in the prior art: P = F / S, where P is the pressure, F is the force acting on the first opening 22 or the second opening 32, and S is the area of ​​the first opening 22 or the second opening 32. That is, the larger S is, the smaller P is. Therefore, when the pressure of the inlet pipe 20 is constant, the larger the area of ​​the second interface 32 on the outlet pipe 30, the smaller the water pressure. That is, the larger S is, the smaller P is.

[0076] It should be noted that the inlet water pressure is generally between 0.3-0.5 MPa. After passing through the first interface 22, the water forms a mist, preventing it from directly impacting the inner wall of the flow channel 11 – this is the first step of noise reduction. Then, this misty wastewater is sprayed onto the sound-absorbing cotton. Since the surface and interior of the sound-absorbing cotton are non-standard hollow structures, these hollow structures further buffer the misty wastewater – this is the second step of noise reduction. When a small amount of wastewater overflows from the sound-absorbing cotton, the speed and flow rate are already very low, and it is further buffered by the silicone components. Finally, all this wastewater converges at the second interface 32 on the outlet pipe 30. The diameter of the second interface 32 is larger than that of the first interface 22 to reduce the water flow pressure – this is the third step of noise reduction, aiming to reduce the noise of the water flowing out of the noise-reducing throttle valve to an acceptable level for the user, thus improving the user experience.

[0077] It is understood that in other embodiments, the first opening 22 and the second opening 32 may also be holes of other shapes, such as rectangular holes, with the aim of setting the size of the second opening 32 to be larger than the size of the first opening 22, so as to reduce the water flow velocity and water flow pressure. This is prior art and will not be described in detail here.

[0078] In this embodiment, the inlet pipe 20 and the outlet pipe 30 extend along different axial directions.

[0079] Specifically, with the inlet pipe 20 offset from the axis of the flow channel 11, its own axis is in a straight line. With the outlet pipe 30 offset from the axis of the flow channel 11, its own axis is in another straight line and is not in the same straight line as the inlet pipe 20. Compared with the two being coaxial, the water flow travels around the flow channel 11, thereby reducing the water flow velocity and noise.

[0080] This embodiment also provides a water purifier that includes the aforementioned noise-reducing throttling valve. Specifically, the water purifier includes the aforementioned noise-reducing throttling valve to increase the water flow path and reduce the water flow velocity when discharging a large amount of wastewater into the drain pipe by means of the inlet pipe 20 and outlet pipe 30 which are set off from the axis of the flow channel 11, and further reduces the generation and transmission of noise through the noise reduction unit 40, thereby improving the user experience.

[0081] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A noise-reducing throttling valve, wherein the inlet of the noise-reducing throttling valve is connected to the wastewater outlet of a water purifier, and the outlet of the noise-reducing throttling valve is connected to a drain pipe, characterized in that, The noise-reducing throttling valve includes: A housing having a flow channel for water flow; The water inlet pipe has a closed end that extends into the flow channel, and the water inlet is located at the end of the water inlet pipe that is outside the flow channel. The water inlet pipe is offset from the axis of the flow channel, and multiple first openings are provided on the pipe wall of the water inlet pipe near the closed end. The water outlet pipe has a closed end that extends into the flow channel, and the water outlet is located at the end of the water outlet pipe that is outside the flow channel, and / or the water outlet pipe is located off the axis of the flow channel. Multiple second openings are provided on the pipe wall of the water outlet pipe near the closed end.

2. The noise-reducing throttling valve as described in claim 1, characterized in that, A noise reduction unit is also provided inside the flow channel. The noise reduction unit is located on the outer periphery of the water inlet pipe and the water outlet pipe that extend into the flow channel.

3. The noise-reducing throttling valve as described in claim 2, characterized in that, The noise reduction unit includes a first buffer section, which has the same length as the flow channel and is sleeved on the outer periphery of the inlet pipe and the outlet pipe that extend into the flow channel.

4. The noise-reducing throttling valve as described in claim 3, characterized in that, The noise reduction unit further includes a second buffer section, which has the same length as the flow channel. The second buffer section is sleeved on the outer periphery of the first buffer section and fits against the inner wall of the flow channel.

5. The noise-reducing throttling valve as described in claim 4, characterized in that, The first buffer part is sound-absorbing cotton, and the second buffer part is a silicone component.

6. The noise-reducing throttling valve as described in claim 5, characterized in that, The housing is provided with a first mounting groove and a second mounting groove. The first mounting groove is used to snap the sound-absorbing cotton, and the second mounting groove is used to snap the silicone part. The first mounting groove and the second mounting groove share the same side wall, and the height of the side wall of the first mounting groove away from the second mounting groove is higher than the height of the side wall of the first mounting groove close to the second mounting groove.

7. The noise-reducing throttling valve as described in claim 1, characterized in that, The housing includes a first outer shell and a second outer shell, and the first outer shell and the second outer shell are provided with an interface along the axial direction of the flow channel. The interface between the first outer shell and the second outer shell is formed by welding to form the housing.

8. The noise-reducing throttling valve as described in claim 1, characterized in that, The size of the second opening is larger than the size of the first opening.

9. The noise-reducing throttling valve as described in claim 1, characterized in that, The inlet pipe and the outlet pipe extend along different axial directions.

10. A water purifier, characterized in that, The water purifier includes a noise-reducing throttling valve as described in any one of claims 1-9.

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