A water treatment water pump output pipeline noise reduction device

By using buffer and limiting components in the water pump output pipe, the problem of vibration and noise transmission in the water pump output pipe is solved, achieving noise reduction and improved system stability, and adapting to the installation needs of different laying scenarios.

CN122328636APending Publication Date: 2026-07-03WUHU HUA YAN WATER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHU HUA YAN WATER CO LTD
Filing Date
2026-03-18
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In existing water treatment systems, the vibration and water flow impact noise of the pump output pipes are rapidly transmitted through rigid connections, resulting in severe noise pollution in the pump room, affecting the normal working environment and potentially causing equipment failure. Existing pipe fixing solutions cannot effectively buffer dynamic vibrations.

Method used

It employs buffer and limiting components, including trays, slide rails, slide rods, slide cylinders, elastic elements, etc., to decompose pipeline vibration energy and reduce noise transmission through multiple vibration reduction and damping effects and flexible installation methods.

Benefits of technology

It effectively reduces the vibration and noise of the water pump output pipeline, improves the stability and installation adaptability of the water supply system, and reduces equipment wear and noise pollution.

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Abstract

This invention relates to the field of water treatment technology, specifically a noise reduction device for the output pipeline of a water treatment pump. The core components include a buffer assembly and a limiting assembly. The buffer assembly includes a first tray with a first slide rail inside, a hinged rod rotatably mounted on its outer wall, and a first abutment plate slidably mounted on its inner wall. A first slide rod is fitted inside the first slide rail. The limiting assembly includes a first cover plate on the outer wall of the first tray, rotatably connected to a first slide cylinder. A first slide groove is opened on the outer wall of the first slide cylinder, and a first slider that can slide along the groove is provided on the inner wall of the first cover plate. A support rod is mounted on the outer wall of the first slide cylinder, with a first elastic element between them. The device utilizes multiple sets of elastic elements for graded vibration reduction, an air-limiting valve for flow restriction, and a transmission structure between the spiral groove and the slider to form multiple damping mechanisms, effectively decomposing the multi-directional vibration energy of the pipeline and improving noise reduction stability. With the help of the hinged rod and threaded structure, the installation height and fixed position can be flexibly adjusted to adapt to different pipeline scenarios. Installation and disassembly are convenient, ensuring stable operation of the water supply system.
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Description

Technical Field

[0001] This invention relates to the field of water treatment technology, and in particular to a noise reduction device for the output pipeline of a water treatment pump. Background Technology

[0002] In the entire process of tap water treatment and secondary water supply, the pump station serves as the power core of the water treatment system, and the operational stability of its internal pumps and pipelines directly affects the water quality and delivery efficiency. With the upgrading of water treatment technology and the increasing environmental protection requirements, the standards for controlling equipment operating noise in the tap water treatment process are becoming increasingly stringent. The mechanical vibration generated by the pumps in the pump station and the turbulent impact of water flow in the pipelines not only interfere with the normal working environment of the water treatment workshop, but may also be transmitted to the surrounding residential areas through the building structure, affecting residents' lives. At the same time, long-term vibration transmission may also lead to loosening of pipe joints and aging of equipment seals, indirectly increasing the risk of water pollution. Therefore, noise reduction optimization of pump stations in tap water treatment systems has become a key focus of the industry.

[0003] Current noise reduction measures for pump stations in the water treatment field mostly focus on overall sound insulation upgrades of the pump station or vibration reduction of the pump itself, with significant shortcomings in vibration suppression solutions for water treatment pipelines. Existing pipeline fixing methods mostly use traditional rigid hangers or supports, which cannot buffer the dynamic vibrations caused by pump operation and water flow impact. Vibrations are quickly transmitted to the building structure through rigid connections, creating secondary noise. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a noise reduction device for the output pipeline of a water treatment pump, which includes a buffer assembly, including a first tray, a first slide rail inside the first tray, a hinge rod rotatably disposed on the outer wall of the first tray, a first abutment plate slidably disposed on the inner wall of the first tray, and a first slide rod disposed inside the first slide rail; The limiting component includes a first cover plate disposed on the outer wall of the first tray, a first slide cylinder rotatably connected to the first cover plate, a first slide groove disposed on the outer wall of the first slide cylinder, a first slider that can slide along the inside of the first slide groove disposed inside the first cover plate, a support rod disposed on the outer wall of the first slide cylinder, and a first elastic member disposed between the first slide cylinder and the support rod.

[0006] As a preferred embodiment of the noise reduction device for the water treatment pump output pipeline of the present invention, wherein: a piston block that can slide along the inside of the first slide rail is provided at the lower end of the first contact plate, and a second elastic element is provided between the first tray and the first contact plate.

[0007] As a preferred embodiment of the noise reduction device for the water treatment pump output pipeline of the present invention, wherein: the first slide rail is provided with an air limiting valve, and the air limiting valve is provided with multiple through holes.

[0008] As a preferred embodiment of the noise reduction device for the water treatment pump output pipeline of the present invention, the inner wall of the first slide rail is provided with a first spiral groove and a vertical groove, and the outer wall of the first slide rod is provided with a second slider that can slide along the inside of the first spiral groove and the vertical groove.

[0009] As a preferred embodiment of the noise reduction device for the water treatment pump output pipeline of the present invention, wherein: a limiting ring is provided on the inner wall of the first slide rail, a limiting disc is provided on the outer wall of the first slide rod, and a third elastic element is provided between the limiting ring and the limiting disc.

[0010] As a preferred embodiment of the noise reduction device for the water treatment pump output pipeline of the present invention, wherein: the first cover plate is recessed inward near the outer wall of the first tray to form a first movable channel, the inner wall of the first movable channel is provided with a limiting groove, the inner wall of the first movable channel is provided with a horn groove, and the outer wall of the first slide rod is provided with a limiting rod that can rotate along the inside of the limiting groove.

[0011] In a preferred embodiment of the noise reduction device for the water treatment pump output pipeline of the present invention, the end of the hinge rod away from the first tray is rotatably connected to a first fixing block, and the first fixing block includes a positioning hole.

[0012] As a preferred embodiment of the noise reduction device for the water treatment pump output pipeline of the present invention, the support rod includes a first connecting column rotatably connected to the first sliding cylinder, the outer wall of the first connecting column is provided with a threaded column, the outer wall of the threaded column is provided with a threaded cylinder, the outer wall of the threaded cylinder is provided with a fixing lug, and the fixing lug is provided with a positioning hole.

[0013] As a preferred embodiment of the noise reduction device for the water treatment pump output pipeline of the present invention, wherein: a first sliding column is slidably provided inside the first sliding cylinder, a second sliding rail is provided on the outer wall of the first sliding column, and a third slider is provided on the inner wall of the first sliding cylinder that can slide along the inside of the second sliding rail; The outer wall of the first sliding column is provided with a second connecting column, the interior of the first connecting column is provided with a second movable channel, the inner wall of the second movable channel is provided with a second spiral groove, and the outer wall of the second connecting column is provided with a fourth sliding element that can slide along the interior of the second spiral groove.

[0014] As a preferred embodiment of the noise reduction device for the water treatment pump output pipeline of the present invention, the first sliding cylinder and the first connecting column are connected by bearings. One end of the first elastic element is connected to the inner wall of the first sliding cylinder, and the other end is connected to the outer wall of the first sliding column.

[0015] The beneficial effects of this invention are as follows: through the graded vibration reduction of multiple sets of elastic elements, the flow restriction effect of the air limiting valve, and the transmission structure of the spiral groove and the slider, multiple vibration reduction and damping effects are formed, which effectively decomposes the vibration energy of the pipeline in different directions and improves the noise reduction stability; the installation height and fixed position of each component of the device can be flexibly adjusted through the hinge rod and threaded structure to adapt to pipelines in different laying scenarios, and the installation and disassembly are convenient, ensuring the stable operation of the water supply system. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall device of the present invention; Figure 2 This is a schematic diagram of the overall structure clamping the pipe in this invention; Figure 3 This is a top view of the overall structure of the present invention; Figure 4 In this invention Figure 3 Schematic diagram of the cross-sectional structure of the middle BB section; Figure 5 In this invention Figure 4 Enlarged schematic diagram of the structure of region D in the middle; Figure 6 In this invention Figure 4 Enlarged schematic diagram of the structure of region E in the middle; Figure 7 This is a schematic diagram of the gas limiting valve structure in this invention; Figure 8 This is a schematic diagram of the first sliding rod structure in this invention; Figure 9 This is a schematic diagram of the cooperation between the first sliding cylinder and the first cover plate in this invention; Figure 10 In this invention Figure 3 Schematic diagram of the cross-sectional structure of the middle CC section; Figure 11 In this invention Figure 10 Enlarged schematic diagram of the structure of the middle F region; Figure 12 This is a schematic diagram of the first sliding column structure in this invention. Detailed Implementation

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example 1

[0021] Reference Figures 1-12 This is the first embodiment of the present invention, which provides a noise reduction device for the output pipeline of a water treatment pump.

[0022] Specifically, the buffer assembly 1 includes a first tray 11, a first slide rail 111 inside the first tray 11, a hinge rod 12 rotatably disposed on the outer wall of the first tray 11, a first abutment plate 13 slidably disposed on the inner wall of the first tray 11, and a first slide rod 14 disposed inside the first slide rail 111. The limiting component 2 includes a first cover plate 21 disposed on the outer wall of the first tray 11, a first slide cylinder 22 rotatably connected to the first cover plate 21, a first slide groove 221 disposed on the outer wall of the first slide cylinder 22, a first slider 211 disposed inside the first cover plate 21 that can slide along the inside of the first slide groove 221, a support rod 23 disposed on the outer wall of the first slide cylinder 22, and a first elastic member 24 disposed between the first slide cylinder 22 and the support rod 23.

[0023] The first tray 11 is a U-shaped clamping block. Hinges 12 are rotatably mounted on both sides of the first tray 11. By rotating, the vertical distance between the two ends of the hinges 12 is changed. At the same time, the first tray 11 is slidably connected to the first abutment plate 13, and the bottom of the first abutment plate 12 can slide along the inside of the first slide rail 111 to compress the internal air. The first slide rail 111 includes a channel for the first abutment plate 13 to slide and circular grooves extending to the upper surface of the four first trays 11. Meanwhile, a first slide rod 14 slides inside the first slide rail 111. When the first abutment plate 13 moves downward, it will compress the air pressure inside the first slide rail 111, thereby pushing the first slide rod 14 upward.

[0024] A first cover plate 21 is placed over the opening of the first tray 11, and the first slide rod 14 is detachably connected to the first cover plate 21. The first cover plate 21 is rotatably connected to the first slide cylinder 22. A first slide groove 221 is provided on the outer wall of the first slide cylinder 22. The first slide groove 221 is a groove that slopes upward along the surface of the first slide cylinder 22. At the same time, the first cover plate 21 is sleeved on the outer wall of the first slide cylinder 22, and a first slider 211 is fixedly installed on the inner wall of the first cover plate 21. When the first slide cylinder 22 rotates, the first cover plate 21 can slide up and down, or when the first cover plate 21 moves up and down, the first slide cylinder 22 can rotate adaptively. Meanwhile, a support rod 23 is sleeved on the outer wall of the first slide cylinder 22. The support rod 23 is connected to the first slide cylinder 22 through a first elastic element 24, that is, one end of the first elastic element 24 is connected to the inner wall of the first slide cylinder 22. The first elastic element 24 is a compression spring.

[0025] In use, the length of the hinge rod 12 on the outer wall of the first tray 11 can be determined according to the existing pipe A laying height design. The height of the first tray 11 can be adjusted appropriately by rotating the hinge rod 12. The first tray 11 is then fitted onto the outer wall of pipe A. Subsequently, the hinge rod 12 is fixed to the wall or the truss in the factory building according to the actual situation, which can be done by bolts. Then, the first cover plate 21 is placed on the notch surface of the first tray 11. Then, the first cover plate 21 is connected to the first slide rod 14 inside the first slide rail 111. In this scheme, the first slide rod 14 is a threaded support rod. Then, the first slide rod 14 is connected to the first cover plate 21 by screwing. Alternatively, the existing technology of male and female snap fasteners can be used. The male and female snap fasteners are respectively installed on the first cover plate 21 and the first slide rod 14. Then, the first slide cylinder 22 presses the first elastic element 24, and then the support rod 23 is fixed to the wall or the truss in the factory building. The first slide cylinder 22 and the support rod 23 press the first elastic element 24. When pipe A vibrates, as it moves upward, the support rod 23 is compressed upward, causing the first cover plate 21 to rotate slightly. Subsequently, it is compressed downward, pushing the air pressure inside the first slide rail 111, which in turn causes the first contact plate 13 to move upward, ensuring it remains in contact with the outer surface of pipe A. If pipe A moves downward, it compresses the first contact plate 13, causing the first slide rod 14 to slide and push the first cover plate 21 upward. This, combined with the first elastic element 24, ensures that the first slide cylinder 22 remains in contact with the outer surface of pipe A. This design ensures that the first contact plate 13 and the first slide cylinder 22 remain in contact with the outer surface of pipe A. Furthermore, because the cross-section of the first contact plate 13 is larger than that of the first slide rail 111, the air pressure flow is slowed down, achieving a damping effect with the first elastic element 24. Simultaneously, the flexible connection between the first contact plate 13 and the first slide cylinder 22 avoids the rigid connection that would cause vibration during vibration. Example 2

[0026] Reference Figures 1-12 This is the second embodiment of the present invention, which is implemented based on the previous embodiment.

[0027] Specifically, the lower end of the first contact plate 13 is provided with a piston block 131 that can slide along the inside of the first slide rail 111, and a second elastic element 15 is provided between the first tray 11 and the first contact plate 13.

[0028] A piston block 131 is fixedly connected to the lower surface of the first contact plate 13. Multiple second elastic elements 15 are arranged between the small surface of the first tray 11 and the inner wall of the bottom of the first contact plate 13. The second elastic elements 15 are compression springs. The second elastic elements 15, in conjunction with the first slide rail 111, achieve a damping effect.

[0029] Preferably, the first slide rail 111 is provided with an air limiting valve 16 inside, and the air limiting valve 16 is provided with multiple through holes 161.

[0030] To further achieve the damping effect, a limit valve 16 is fixedly installed on the inner wall of the first slide rail 111. The air limit valve 16 passes through multiple through holes 161. The cross-sectional area of ​​the through holes 161 is smaller than that of the first slide rail 111. When the gas passes through back and forth, it will be restricted. Combined with the potential energy of the spring, the vibration reduction effect is achieved.

[0031] Preferably, the inner wall of the first slide rail 111 is provided with a first spiral groove 1111 and a vertical groove 1112, and the outer wall of the first slide rod 14 is provided with a second slider 141 that can slide along the inside of the first spiral groove 1111 and the vertical groove 1112.

[0032] The first slide rail 111 has a first spiral groove 1111 inside, which is a rotating upward slide groove. The end of the first spiral groove 1111 then connects to the vertical groove 1112. The outer wall of the first slide rod 14 is fixedly connected to a second slider 141. When the first slide rod 14 moves up and down, the second slider 141 slides along the first spiral groove 1111 and the interior of the vertical groove 1112. That is, when the first slide rod 14 slides along the interior of the first spiral groove 1111, the first slide rod 14 will rotate. When it slides into the vertical groove 1112, the first slide rod 14 moves up and down.

[0033] The inner wall of the first slide rail 111 is provided with a limiting ring 17, the outer wall of the first slide rod 14 is provided with a limiting plate 142, and a third elastic element 18 is provided between the limiting ring 17 and the limiting plate 142.

[0034] A ring-shaped limiting ring 17 is fixedly installed on the inner wall of the first slide rail 111. The first slide rod 14 passes through the limiting ring 17. At the same time, a limiting plate 142 is fixedly connected to the outer wall of the first slide rod 14. The limiting plate 142 is made of silicone material to achieve sealing. Meanwhile, a third elastic element 18 is provided between the limiting plate 142 and the limiting ring 17. The third elastic element 18 is also a compression spring. The advantage of setting a spring here is that the second elastic element 15 and the third elastic element 18 are equivalent to two sets, which reduces vibration in two stages. The second elastic element 15 works with the air pressure between the limiting valve 16 and the first contact plate 13 to achieve vibration reduction. At the same time, the third elastic element 18 works with the limiting valve 16 and the limiting plate 142 to achieve secondary vibration reduction.

[0035] Preferably, the first cover plate 21 is recessed inward near the outer wall of the first tray 11 to form a first movable channel 212. The inner wall of the first movable channel 212 is provided with a limiting groove 2111 and a horn groove 2112. The outer wall of the first slide rod 14 is provided with a limiting rod 143 that can rotate along the inside of the limiting groove 2111.

[0036] Specifically, a cylindrical first movable channel 212 is formed by an inward recess on the lower surface of the first cover plate 21 near the first slide rod 14. At the same time, a limiting groove 2111 with a radius larger than that of the first movable channel 212 is located near the upper end. A horn groove 2112 is provided on the inner wall of the first movable channel 212. One end of the horn groove 2112 opens outward and connects to the inside of the limiting groove 2111. The advantage of this design is that when the first slide rod 14 moves upward, the first slide rod 14 rotates and slides into the limiting groove 2111 along the surface of the horn groove 2112.

[0037] Preferably, the end of the hinge rod 12 away from the first tray 11 is rotatably connected to a first fixing block 19, and the first fixing block 19 includes a positioning hole 191.

[0038] The first fixing block 19 is rotatably installed on the upper end of the hinge rod 12, and the first fixing block 19 includes a positioning block 191. The first fixing block 19 can be directly fixed to the wall or truss by screw connection. Example 3

[0039] Reference Figures 1-12 This is the third embodiment of the present invention, which is implemented based on the previous embodiment.

[0040] Specifically, the support rod 23 includes a first connecting post 231 that is rotatably connected to the first slide cylinder 22. The outer wall of the first connecting post 231 is provided with a threaded post 232, the outer wall of the threaded post 232 is provided with a threaded cylinder 233, the outer wall of the threaded cylinder 233 is provided with a fixing ear 2331, and the fixing ear 2331 is provided with a positioning hole 191.

[0041] The support rod 23 includes a first sliding cylinder 22. In this design, the first sliding cylinder 22 is rotatably connected to the first connecting column 231. At the same time, a threaded column 232 is fixedly installed at the upper end of the first connecting column 231. Meanwhile, the threaded cylinder 233 is sleeved on the outer surface of the threaded column 232. The threaded column 232 and the threaded cylinder 233 are screwed together. Rotating the threaded cylinder 233 can realize the up and down movement of the threaded cylinder 233. Rotating the threaded cylinder 233 allows it to fit against the surface of the wall or truss. Then, screws or bolts are used to pass through the positioning hole 191 and fix it to the surface of the wall or truss.

[0042] A fixing lug 2331 is fixedly installed on the outer wall of the threaded cylinder 233. Similarly, it is fixed to the wall or truss surface by bolts or screws through the positioning hole 191.

[0043] Preferably, a first sliding column 25 is slidably provided inside the first sliding cylinder 22, a second sliding rail 251 is provided on the outer wall of the first sliding column 25, and a third sliding block 222 is provided on the inner wall of the first sliding cylinder 22 that can slide along the inside of the second sliding rail 251. The outer wall of the first sliding column 25 is provided with a second connecting column 252, the interior of the first connecting column 231 is provided with a second movable channel 2312, the inner wall of the second movable channel 2312 is provided with a second spiral groove 23121, and the outer wall of the second connecting column 252 is provided with a fourth sliding column 2521 that can slide along the interior of the second spiral groove 23121.

[0044] The first slide column 25 is slidably installed inside the first slide cylinder 22, and the outer wall of the first slide column 25 is provided with a second slide rail 251. The inner wall of the first slide cylinder 22 is fixedly installed with a third slider 222 that slides along the inside of the second slide rail 251, thereby realizing the sliding connection between the first slide cylinder 22 and the first slide column 25.

[0045] A second connecting post 252 is fixedly installed at the upper end of the first sliding post 25, and the second connecting post 252 extends into the second movable channel 2312 inside the first connecting post 231. The inner wall of the second movable channel 2312 is provided with a second spiral groove 23121, which is a spiral upward sliding groove. The fourth slider 2521 fixed on the outer wall of the second connecting post 252 can slide along the inside of the second spiral groove 23121. When the first sliding post 25 slides upward, the fourth slider 2521 on the outer wall of the second connecting post 252 slides along the inside of the second spiral groove 23121, thereby driving the first sliding cylinder 22 to rotate. Subsequently, the first sliding groove 221 on the outer wall of the first sliding cylinder 22 pushes the first slider 211 to move downward, thereby driving the first cover plate 21 to move downward.

[0046] When pipe A moves downward, the first contact plate 13 moves downward, and through pneumatic transmission, the first slide rod 14 moves upward, lifting the first cover plate 21 to move upward. Then, it drives the first slide cylinder 22 to rotate in the opposite direction, and the first slide column 25 moves downward. Through mechanical transmission, it ensures that the first slide column 25 fits more tightly.

[0047] The first slide cylinder 22 and the first connecting column 231 are connected by a bearing 26; One end of the first elastic element 24 is connected to the inner wall of the first slide cylinder 22, and the other end is connected to the outer wall of the first slide column 25.

[0048] The first slide cylinder 22 and the first connecting column 231 are rotatably connected by the bearing 26. At the same time, one end of the first elastic element 24 is fixedly connected to the inner wall of the first slide cylinder 22, and the other end is attached to the upper surface of the first slide column 25.

[0049] In summary, during use, the first contact plate 13 inside the first tray 11 is placed against the surface of pipe A. Then, the first cover plate 21 is placed over the opening of the first tray 11. The first cover plate 21 and the first tray 11 are then pressed together, causing the limiting rod 143 at the upper end of the first slide rod 14 to slide into the limiting groove 2111, achieving a locking action. This allows the air pressure inside the first slide rail 111 to push the first slide rod 14 to slide, thereby moving the first cover plate 21. The movement of the first cover plate 21 also causes the first slide rod 14 to slide. The first slide column 25 moves upward, and the first slide cylinder 22 drives the first cover plate 21 to move downward. Simultaneously, the spring reduces both the moving distance and the moving speed, thus reducing noise. Furthermore, by replacing the rigid connection, friction noise caused by the vibration of the rigid connection is reduced.

[0050] When disassembly is required, the first connecting column 231 can be rotated to move the first sliding column 25 upward, and at the same time, the first cover plate 21 is moved downward. Then the first sliding rod 14 moves downward, and the second slider 141 fixed on the outer wall of the first sliding rod 14 enters the first spiral groove 1111 along the vertical groove 1112. Then the third elastic element 18 pushes the first sliding rod 14 downward, and then the limiting rod 143 rotates into the horn groove 2112. Then the first cover plate 21 is separated from the first tray 11.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A water treatment water pump output pipeline noise reduction device, characterized in that: include The buffer assembly (1) includes a first tray (11), a first slide rail (111) inside the first tray (11), a hinge rod (12) rotatably disposed on the outer wall of the first tray (11), a first abutment plate (13) slidably disposed on the inner wall of the first tray (11), and a first slide rod (14) disposed inside the first slide rail (111). The limiting component (2) includes a first cover plate (21) on the outer wall of the first tray (11), a first slide cylinder (22) rotatably connected to the first cover plate (21), a first slide groove (221) on the outer wall of the first slide cylinder (22), a first slider (211) that can slide along the inside of the first slide groove (221) is provided inside the first cover plate (21), a support rod (23) on the outer wall of the first slide cylinder (22), and a first elastic member (24) between the first slide cylinder (22) and the support rod (23).

2. The noise reduction device for the water treatment pump output pipeline as described in claim 1, characterized in that: The lower end of the first contact plate (13) is provided with a piston block (131) that can slide along the inside of the first slide rail (111), and a second elastic element (15) is provided between the first tray (11) and the first contact plate (13).

3. The noise reduction device for the water treatment pump output pipeline as described in claim 2, characterized in that: The first slide rail (111) is provided with an air limiting valve (16) inside, and the air limiting valve (16) is provided with multiple through holes (161).

4. The noise reduction device for the water treatment pump output pipeline as described in claim 3, characterized in that: The inner wall of the first slide rail (111) is provided with a first spiral groove (1111) and a vertical groove (1112), and the outer wall of the first slide rod (14) is provided with a second slider (141) that can slide along the inside of the first spiral groove (1111) and the vertical groove (1112).

5. The noise reduction device for the water treatment pump output pipeline as described in claim 4, characterized in that: The inner wall of the first slide rail (111) is provided with a limiting ring (17), the outer wall of the first slide rod (14) is provided with a limiting disc (142), and a third elastic element (18) is provided between the limiting ring (17) and the limiting disc (142).

6. The noise reduction device for the water treatment pump output pipeline as described in claim 5, characterized in that: The first cover plate (21) is recessed inward near the outer wall of the first tray (11) to form a first movable channel (212). The inner wall of the first movable channel (212) is provided with a limiting groove (2111) and a horn groove (2112). The outer wall of the first slide rod (14) is provided with a limiting rod (143) that can rotate along the inside of the limiting groove (2111).

7. The noise reduction device for the water treatment pump output pipeline as described in claim 6, characterized in that: The hinge rod (12) is rotatably connected to a first fixing block (19) at the end away from the first tray (11), and the first fixing block (19) includes a positioning hole (191).

8. The noise reduction device for the water treatment pump output pipeline as described in claim 7, characterized in that: The support rod (23) includes a first connecting column (231) rotatably connected to the first slide cylinder (22). The outer wall of the first connecting column (231) is provided with a threaded column (232). The outer wall of the threaded column (232) is provided with a threaded cylinder (233). The outer wall of the threaded cylinder (233) is provided with a fixing ear (2331). The fixing ear (2331) is provided with a positioning hole (191).

9. The noise reduction device for the water treatment pump output pipeline as described in claim 8, characterized in that: The first slide cylinder (22) is provided with a first slide column (25) inside, the outer wall of the first slide column (25) is provided with a second slide rail (251), and the inner wall of the first slide cylinder (22) is provided with a third slider (222) that can slide along the inside of the second slide rail (251). The outer wall of the first sliding column (25) is provided with a second connecting column (252), the inner wall of the first connecting column (231) is provided with a second movable channel (2312), the inner wall of the second movable channel (2312) is provided with a second spiral groove (23121), and the outer wall of the second connecting column (252) is provided with a fourth sliding (2521) that can slide along the inner wall of the second spiral groove (23121).

10. The noise reduction device for the water treatment pump output pipeline as described in claim 9, characterized in that: The first slide (22) and the first connecting column (231) are connected by a bearing (26); One end of the first elastic element (24) is connected to the inner wall of the first slide cylinder (22), and the other end is connected to the outer wall of the first slide column (25).