Spray head and cleaning equipment

Abstract

The embodiment of the invention provides a spray head and cleaning equipment. The nozzle comprises a nozzle body, and a noise reduction cavity is formed in the nozzle body; the noise reduction cavity extends in the first direction and is used for receiving fluid. A nozzle is arranged at the spray head body, is positioned on one side of the noise reduction cavity in the first direction, and is communicated with the noise reduction cavity; the noise reduction cavity is used for conveying fluid to the nozzle; the spoiler is arranged in the noise reduction cavity; when fluid flows through the spoiler, the spoiler is used for guiding the fluid to generate vortex. According to the embodiment of the invention, the spoiler is arranged in the noise reduction cavity of the nozzle body, when the fluid enters the noise reduction cavity through the water inlet hole and flows towards the nozzle through the noise reduction cavity, the fluid passes through the spoiler, and the spoiler can guide and disturb the flowing fluid, so that the flowing direction of the fluid is changed; therefore, the fluid can generate vortex in the noise reduction cavity, the flow speed of the fluid is reduced, the turbulence degree of the fluid is reduced, the fluid flowing to the nozzle becomes stable, and the purpose of noise reduction of the fluid is achieved.

Description

Technical Field

[0001] This application relates to the field of nozzle technology, and more particularly to a nozzle and cleaning device. Background Technology

[0002] Noise-reducing nozzles are used to spray gas or fluid. Current noise-reducing nozzles include a nozzle body and nozzles. Generally, multiple nozzles are set to disperse the fluid into multiple fine jets through multiple nozzles to reduce noise.

[0003] However, due to the limited size of the noise reduction nozzles, the number of nozzles can be limited, resulting in poor noise reduction performance of current noise reduction nozzles. Summary of the Invention

[0004] This application provides a nozzle and a cleaning device. A turbulence-disrupting element is provided in the noise reduction cavity of the nozzle body. The turbulence-disrupting element can guide and disturb the fluid flowing through it, thereby changing the flow direction of the fluid. This allows the fluid to generate vortices in the noise reduction cavity, thereby reducing the flow velocity of the fluid and the degree of turbulence. This makes the fluid flowing towards the nozzle more stable, thereby achieving the purpose of noise reduction.

[0005] In a first aspect, embodiments of this application provide a nozzle, including,

[0006] The nozzle body has a noise reduction cavity inside; the noise reduction cavity extends along a first direction and is used to receive fluid; the nozzle body is provided with a nozzle located on one side of the noise reduction cavity along the first direction and communicating with the noise reduction cavity; the noise reduction cavity is used to deliver the fluid to the nozzle.

[0007] A flow deflector is disposed within the noise reduction cavity; when the fluid flows through the flow deflector, the flow deflector is used to guide the fluid to generate eddies.

[0008] In one possible implementation, the aerodynamic element includes one or more deflectors extending along the first direction;

[0009] Along the first direction and toward the nozzle, the cross-sectional area of ​​the guide plate gradually increases in the second direction, which is perpendicular to the first direction.

[0010] In one possible implementation, when there are multiple guide vanes, the multiple guide vanes are arranged at intervals along the second direction.

[0011] In one possible implementation, among the plurality of guide vanes, the guide vane located closer to the center is closer to the connection channel of the nozzle body than the guide vane located closer to the edge.

[0012] In one possible implementation, a connection hole is provided at the nozzle body for connecting the noise reduction cavity and the nozzle.

[0013] In one possible implementation, the number of connection holes is multiple; the gap between two adjacent guide plates corresponds one-to-one with the multiple connection holes in the first direction.

[0014] In one possible implementation, the spoiler includes one or more blocking members that extend along the second direction and at least partially block the noise reduction cavity; the blocking member is provided with one or more through holes that penetrate the blocking member along the first direction.

[0015] In one possible implementation, when there are multiple blocking elements, the multiple blocking elements are arranged at intervals along the first direction.

[0016] In one possible implementation, at least a portion of the noise reduction cavity is a gradient section along the first direction and toward the nozzle, and the cross-sectional area of ​​the gradient section gradually decreases in the second direction.

[0017] In one possible implementation, the spoiler is located within the transition section.

[0018] In one possible implementation, the outer surface of the nozzle body is provided with an opening that communicates with the noise reduction cavity; a cover plate is detachably provided over the opening, and a sealing ring is provided between the cover plate and the opening, the cover plate being used to seal the opening.

[0019] Secondly, embodiments of this application provide a cleaning device, including,

[0020] Fluid supply device;

[0021] The nozzles mentioned above;

[0022] The fluid supply device is connected to the nozzle via a delivery pipe, and the fluid supply device is used to supply the nozzle with at least one of a liquid and a gas.

[0023] The nozzle and cleaning device provided in this application embodiment have a turbulence-reducing element installed in the noise reduction cavity of the nozzle body. When fluid enters the noise reduction cavity through the inlet hole, the fluid flows towards the connection hole in a first direction within the noise reduction cavity. The flow direction of the fluid passing through the turbulence-reducing element changes; that is, the flow direction of the fluid flowing through the turbulence-reducing element deviates from the first direction. This allows the fluid whose flow direction deviates from the first direction to interact with the fluid flowing in the first direction, thereby generating eddies at the turbulence-reducing element. This reduces the flow velocity of the fluid in the noise reduction cavity, thereby reducing the turbulence of the fluid and making the fluid more stable, achieving the effect of noise reduction. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0025] Figure 1 A perspective view of a first type of nozzle provided for some embodiments of this application;

[0026] Figure 2 A perspective view of the first type of nozzle with the cover plate removed, provided for some embodiments of this application;

[0027] Figure 3 A perspective view of a second type of nozzle provided in some embodiments of this application;

[0028] Figure 4 This is a perspective view of the second type of nozzle with the cover plate removed, provided in some embodiments of this application;

[0029] Figure 5 A perspective view of a third type of nozzle with the nozzle concealed, provided in some embodiments of this application;

[0030] Figure 6 This is a cross-sectional view of a third type of nozzle provided in some embodiments of this application, with the nozzle removed.

[0031] Figure 7 A perspective view of a fourth type of nozzle provided in some embodiments of this application;

[0032] Figure 8 A cross-sectional view of a fourth type of nozzle provided in some embodiments of this application;

[0033] Figure 9 A perspective view of a fifth type of nozzle provided in some embodiments of this application;

[0034] Figure 10 This is a cross-sectional view of a fifth type of nozzle provided in some embodiments of this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 100. Nozzle body; 110. Noise reduction chamber; 111. Gradient section; 112. Straight section; 120. Connecting hole; 130. Connecting channel; 140. Opening;

[0037] 200. Nozzle; 210. Jet flow channel;

[0038] 300. Spoiler; 310. Deflector; 311. First sub-deflector; 312. Second sub-deflector; 320. Blocking component; 321. Through hole;

[0039] 400. Cover plate; 410. Sealing ring.

[0040] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0041] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0042] Noise-reducing nozzles are used to spray gas or fluid. Current noise-reducing nozzles include a nozzle body and nozzles. Generally, multiple nozzles are set to disperse the fluid into multiple fine jets through multiple nozzles to reduce noise.

[0043] However, due to the limited size of the noise reduction nozzles, the number of nozzles can be limited, resulting in poor noise reduction performance of current noise reduction nozzles.

[0044] The nozzle and cleaning equipment provided in this application include a flow-damping element in the noise reduction chamber of the nozzle body. When fluid enters the noise reduction chamber through the inlet, it flows in the noise reduction chamber along a first direction toward the connection hole. The flow direction of the fluid passing through the flow-damping element changes; that is, the flow direction of the fluid flowing through the flow-damping element deviates from the first direction. This allows the fluid whose flow direction deviates from the first direction to interact with the fluid flowing along the first direction, thereby generating vortices at the flow-damping element. This reduces the flow velocity of the fluid in the noise reduction chamber, thereby reducing the turbulence of the fluid and making the fluid more stable, achieving the effect of noise reduction.

[0045] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0046] Firstly, see [the following] Figure 1 and Figure 2 As shown in the embodiment of this application, a nozzle is provided. The nozzle includes a nozzle body 100, and the nozzle body 100 has a noise reduction cavity 110 inside, which extends along a first direction X within the nozzle body 100. A nozzle 200 is also provided on the nozzle body 100, and the nozzle 200 is located on one side of the noise reduction cavity 110 along the first direction X, and the nozzle 200 communicates with the noise reduction cavity 110.

[0047] See Figure 5 and Figure 6 As shown, the nozzle body 100 is provided with a connection hole 120 and a connection channel 130, which are located on both sides of the nozzle body 100 along the first direction X. The connection hole 120 is used to connect the noise reduction chamber 110 and the nozzle 200; the connection channel 130 is connected to the noise reduction chamber 110, and after the nozzle body 100 is connected to an external delivery pipe, the connection channel 130 is used to connect to the delivery pipe so that the delivery pipe can deliver fluid to the noise reduction chamber 110 through the connection channel 130, and then the noise reduction chamber 110 delivers the fluid to the nozzle 200 so that the fluid can be sprayed out through the nozzle 200. The fluid here can be liquid, gas, or a gas-liquid mixture, and there is no particular limitation on this.

[0048] In this embodiment of the nozzle, a flow-damping element 300 is provided in the noise reduction cavity 110 of the nozzle body 100. When fluid enters the noise reduction cavity 110 through the connecting channel 130 and flows towards the nozzle 200 through the noise reduction cavity 110, the fluid will pass through the flow-damping element 300. The flow-damping element 300 can guide and disturb the flowing fluid, thereby changing the flow direction of the fluid, so that the fluid can generate vortices in the noise reduction cavity 110, thereby reducing the flow velocity of the fluid, reducing the degree of turbulence of the fluid, and making the fluid flowing towards the nozzle 200 more stable, thereby achieving the purpose of noise reduction of the fluid.

[0049] For example, since the noise reduction cavity 110 extends along the first direction X, and the connecting hole 120 and the connecting channel 130 are respectively disposed on both sides of the nozzle body 100 along the first direction X, when the fluid enters the noise reduction cavity 110 through the connecting channel 130, the fluid will flow in the noise reduction cavity 110 along the first direction X toward the connecting hole 120. After the baffle 300 is provided in the noise reduction cavity 110, the flow direction of the fluid passing through the baffle 300 will change. That is, the flow direction of the fluid flowing through the baffle 300 deviates from the first direction X, so that the fluid whose flow direction deviates from the first direction X can interact with the fluid flowing along the first direction X, thereby generating eddies at the baffle 300, achieving the purpose of reducing the flow velocity of the fluid in the noise reduction cavity 110, thereby reducing the degree of turbulence of the fluid, making the fluid more stable, and achieving the effect of noise reduction of the fluid.

[0050] In some implementations, see Figures 1-4 As shown, the flow-disrupting component 300 includes a flow guide plate 310, which is disposed in the noise reduction cavity 110 and extends along the first direction X. When fluid enters the noise reduction cavity 110 and flows towards the connection hole 120 along the first direction X, the flow guide plate 310 can divert the fluid as it flows through it. For example, the guide plate 310 has a first end and a second end along the first direction X. The first end of the guide plate 310 is close to the connecting channel 130, and the second end of the guide plate 310 is close to the connecting hole 120. During the process of fluid flowing through the guide plate 310, the first end of the guide plate 310 guides and diverts the fluid, causing the fluid to flow in two streams, thereby reducing the flow rate of a single stream and achieving the effect of reducing turbulence. The diverted fluids at the second end of the guide plate 310 re-merge, that is, the fluids with reduced turbulence at the second end of the guide plate 310 re-merge, thereby making the merged fluids smoother and achieving the purpose of reducing noise in the fluid.

[0051] Further, see Figure 2 and Figure 4As shown, along the first direction X and towards the nozzle 200, the cross-sectional area of ​​the guide plate 310 gradually increases in the second direction, which is perpendicular to the first direction X. When fluid flows through the guide plate 310, it flows along the sidewall of the guide plate 310, allowing the guide plate 310 to guide the flow direction of the fluid. Because the cross-sectional area of ​​the guide plate 310 gradually increases in the second direction, the flow direction of the fluid changes when guided by the guide plate 310. That is, the flow direction of the fluid flowing through the guide plate 310 deviates from the first direction X, allowing the fluid with a flow direction deviating from the first direction X to interact with the fluid flowing along the first direction X, thereby generating vortices at the guide plate 310. This reduces the flow velocity of the fluid in the noise reduction cavity 110, thereby reducing the turbulence of the fluid and making the fluid smoother, achieving the effect of noise reduction.

[0052] In the embodiments of this application, see Figure 3 and Figure 4 As shown, the number of deflectors 310 can be one or more, and there is no particular limitation here.

[0053] In some implementations, see Figure 3 and Figure 4 As shown, when there are multiple guide vanes 310, the multiple guide vanes 310 are arranged at intervals along the second direction.

[0054] For example, see Figure 3 and Figure 4 As shown, the multiple guide vanes 310 include a first sub-guide vane 311 and a second sub-guide vane 312 located adjacent to each other, and the first sub-guide vane 311 and the second sub-guide vane 312 are spaced apart along a second direction. Since the cross-sectional area of ​​the guide vane 310 gradually increases along the first direction X and toward the nozzle 200, when the fluid flows through the first sub-guide vane 311, under the guidance of the first sub-guide vane 311, the flow direction of part of the fluid will be shifted toward the second sub-guide vane 312, and when the fluid flows through the second sub-guide vane 312, under the guidance of the second sub-guide vane 312, the flow direction of part of the fluid will be shifted toward the first sub-guide vane 311. This causes the fluid to interact between the first sub-guide vane 311 and the second sub-guide vane 312 to generate vortices, which slows down the flow velocity of the fluid after flowing through the guide vane 310, thereby reducing the degree of turbulence and making the fluid smoother, achieving the effect of noise reduction.

[0055] In some implementations, see Figure 4 As shown, when there are multiple guide vanes 310, along the second direction, the guide vane 310 near the middle position is closer to the water inlet than the guide vane 310 near the edge position.

[0056] For example, see Figure 4 As shown, the plurality of guide vanes 310 include a first sub-guide vane 311 and a second sub-guide vane 312. The first sub-guide vane 311 is closer to the middle position of the plurality of guide vanes 310, and the second sub-guide vane 312 is closer to the edge position of the plurality of guide vanes 310. The first sub-guide vane 311 is closer to the connecting channel 130 than the second sub-guide vane 312. More specifically, the first end of the first sub-guide vane 311 is closer to the connecting channel 130 than the first end of the second sub-guide vane 312.

[0057] It is worth mentioning that when the fluid enters the noise reduction cavity 110 through the connecting channel 130, the fluid will first come into contact with the first end of the first sub-guide plate 311 and be diverted by the first end of the first sub-guide plate 311. Since the first end of the second sub-guide plate 312 is further away from the connecting channel 130 than the first end of the first sub-guide plate 311, the fluid diverted by the first end of the first sub-guide plate 311 will not be blocked by the first end of the second sub-guide plate 312. As a result, most of the diverted fluid is intercepted by the second sub-guide plate 312 between the first sub-guide plate 311 and the second sub-guide plate 312. In other words, the fluid diverted by the first sub-guide plate 311 can pass over the second sub-guide plate 312 and flow to the side of the second sub-guide plate 312 away from the first sub-guide plate 311, making the distribution of the fluid in the noise reduction cavity 110 more uniform and allowing the fluid to fill the noise reduction cavity 110 better.

[0058] Because the fluid diverted by the first sub-guide plate 311 can flow to the side of the second sub-guide plate 312 opposite to the first sub-guide plate 311, the second sub-guide plate 312 can cooperate with the inner wall of the noise reduction cavity 110. The second sub-guide plate 312 guides the fluid flow direction towards the inner wall of the noise reduction cavity 110, generating vortices between the second sub-guide plate 312 and the inner wall of the noise reduction cavity 110, thereby achieving a noise reduction effect. When a third sub-guide plate is also provided on the side of the second sub-guide plate 312 opposite to the first sub-guide plate 311, the fluid can also flow between the second sub-guide plate 312 and the third sub-guide plate, allowing the second and third sub-guide plates to cooperate and generate vortices between them, thus achieving a noise reduction effect. The first end of the third sub-guide plate is further away from the connecting channel 130 than the first end of the second sub-guide plate 312.

[0059] In the embodiments of this application, see Figure 2 and Figure 4As shown, multiple guide plates 310 are disposed at one end of the noise reduction cavity 110 near the nozzle 200, and the second ends of the multiple guide plates 310 are connected to the inner wall of the noise reduction cavity 110. The nozzle body 100 is provided with multiple connection holes 120; the nozzle 200 disposed on the nozzle body 100 has multiple jet channels 210, and the multiple jet channels 210 correspond one-to-one with the multiple connection holes 120, so that the multiple jet channels 210 are respectively connected to the noise reduction cavity 110, so that the fluid in the noise reduction cavity 110 can enter the jet channels 210 and be sprayed out.

[0060] Further, see Figure 2 and Figure 4 As shown, the gap between two adjacent guide plates 310, and the gap between the outermost guide plate 310 along the second direction and the inner wall of the noise reduction cavity 110, all correspond one-to-one with the multiple jet channels 210. In this embodiment, by setting the guide plates 310 near the middle position along the second direction to be closer to the connecting channel 130 than the guide plates 310 near the edge position, the fluid entering the noise reduction cavity 110 can flow to the gap between each pair of adjacent guide plates 310, and to the gap between the outermost guide plate 310 along the second direction and the inner wall of the noise reduction cavity 110. This causes the corresponding fluid to generate a vortex phenomenon before entering the jet channel 210, thereby improving the noise reduction effect on the fluid.

[0061] In some implementations, see Figures 5-10 As shown, the flow-disrupting component 300 includes a blocking component 320, which extends along a second direction. This second direction only needs to be perpendicular to the first direction X, allowing the blocking component 320 to at least partially block the noise-reducing cavity 110. One or more through-holes 321 are provided on the blocking component 320, and these through-holes 321 penetrate the blocking component 320 along the first direction X. When fluid passes through the blocking component 320, the blocking component 320 first blocks the flow of fluid along the first direction X, and then changes the flow direction of the fluid, causing the fluid to flow along the outer surface of the blocking component 320 towards the through-hole 321. In other words, the blocking component 320 can guide the flow of fluid, allowing it to flow towards the nozzle 200 through the through-hole 321.

[0062] It is understandable that by blocking the flow of fluid in the first direction X by the blocking member 320, the flow velocity of the fluid in the noise reduction cavity 110 can be reduced, so that the fluid can maintain a relatively stable state when it continues to flow toward the nozzle 200 through the through hole 321, thereby reducing the degree of fluid turbulence and thus reducing the noise generated by the fluid.

[0063] It is worth mentioning that when the blocking member 320 blocks the fluid, it can guide the fluid to change its flow direction, so that the fluid changing its flow direction can interact with the fluid flowing along the first direction X, thereby forming a vortex at the blocking member 320. This allows the fluid to have a stable state when passing through the through hole 321 on the blocking member 320, and to flow towards the nozzle 200 more smoothly, avoiding the generation of turbulence and thus achieving the effect of noise reduction.

[0064] In some implementations, see Figure 6 , Figure 8 and Figure 10 As shown, a plurality of blocking elements 320 are provided in the noise reduction cavity 110, and the plurality of blocking elements 320 are arranged sequentially at intervals along the first direction X. Each blocking element 320 can block and turbulent the fluid, thereby improving the noise reduction effect.

[0065] It is understood that the number of through holes 321 on two adjacent blocking members 320 along the first direction X position can be different; the aperture of the through holes 321 on two adjacent blocking members 320 along the first direction X position can be different; the positions of the through holes 321 on two adjacent blocking members 320 along the first direction X position are staggered, so that the fluid is blocked and then guided to the through hole 321 when flowing through each blocking member 320; the density of the through holes 321 on two adjacent blocking members 320 along the first direction X position can be different; no special limitation is made here.

[0066] It is worth mentioning that the guide plate 310 and the blocking member 320 simultaneously set in the noise reduction cavity 110, as well as the multiple blocking members 320, can form multi-level noise reduction for the fluid in the noise reduction cavity 110, thereby improving the noise reduction effect.

[0067] In some implementations, see Figure 2 , Figure 4 , Figure 8 and Figure 10 As shown, at least a portion of the noise reduction cavity 110 along the first direction X is a gradient segment 111, for example, see [reference needed]. Figure 2 and Figure 4 As shown, the noise reduction cavity 110 is entirely composed of gradient segments 111 along the first direction X. For example, see [link to previous section]. Figure 10 As shown, the noise reduction cavity 110 has a transition section 111 at its middle position. For example, see [link to previous section]. Figure 8As shown, the noise reduction cavity 110 has a transition section 111 at either end along the first direction X, which is not particularly limited here. Along the first direction X and toward the nozzle 200, the cross-sectional area of ​​the transition section 111 gradually decreases in the second direction. That is, within the transition section 111, the space provided by the noise reduction cavity 110 for fluid flow becomes smaller as it gets closer to the nozzle 200.

[0068] Understandably, as the fluid enters the transition section 111, the space within the transition section 111 gradually shrinks as the fluid flows toward the nozzle 200, thus gradually increasing the ability of the transition section 111 to restrict fluid flow. When turbulent fluid flows in the transition section 111, the shrinking space of the transition section 111 reduces the fluid's flow space, thereby gradually limiting the degree of turbulence and making the fluid flow more stable, thus achieving a noise reduction effect.

[0069] In some cases, see Figure 8 and Figure 10 As shown, the noise reduction cavity 110 also includes a straight section 112, which has a circular cross-section in the second direction. The straight section 112 is adjacent to the gradient section 111, and the straight section 112 is further away from the nozzle 200 than the gradient section 111. The total capacity of the gradient section 111 is the same as that of the straight section 112, but the cross-section of the gradient section 111 in the second direction is a flat annular shape. The maximum diameter of the gradient section 111 is larger than that of the straight section 112, and along the first direction X and towards the nozzle 200, the cross-sectional area of ​​the gradient section 111 gradually decreases in the second direction. When the fluid in the straight section 112 flows into the gradient section 111, firstly, the gradient section 111 can accommodate all the fluid in the straight section 112; secondly, the change in the cross-sectional area of ​​the gradient section 111 in the first direction X can reduce the turbulence of the fluid, thereby achieving noise reduction while maintaining the stability of the fluid flow.

[0070] It is worth mentioning that when the fluid flows from the straight section 112 into the gradual section 111, since the maximum diameter of the gradual section 111 is larger than the diameter of the straight section 112, the fluid will flow along the first direction X and diffuse in the gradual section 111 along the second direction at the same time, thereby reducing the degree of turbulence and making the fluid more gentle and stable in the gradual section 111, thus improving the noise reduction effect.

[0071] In some implementations, see Figure 2 and Figure 4As shown, the spoiler 300 is disposed in the transition section 111. Since the spoiler 300 includes a guide vane 310 and a blocking member 320, it can be understood that the guide vane 310 is disposed in the transition section 111, or the blocking member 320 is disposed in the transition section 111, or both the guide vane 310 and the blocking member 320 are disposed in the transition section 111.

[0072] Since the baffle, the blocking member 320 and the transition section 111 can all adjust the flow state of the fluid, when at least two of the baffle, the blocking member 320 and the transition section 111 are combined, the noise reduction effect of the nozzle in this embodiment can be improved.

[0073] In some implementations, see Figures 1-4 As shown, an opening 140 is provided on the outer surface of the nozzle body 100, and the opening 140 is connected to the noise reduction cavity 110. The situation in the noise reduction cavity 110 can be directly observed through the opening 140, which facilitates the production, use and maintenance of the nozzle of this embodiment.

[0074] Further, see Figure 1 and Figure 3 As shown, a cover plate 400 is provided at the opening 140. The cover plate 400 is fixedly installed at the opening 140 by bolts, thus enabling the cover plate 400 to be detached from the nozzle body 100. When the nozzle is to be used, the cover plate 400 is fixedly installed on the nozzle body 100 by bolts, so that the cover plate 400 blocks the opening 140, ensuring that the fluid can flow into the nozzle 200 and be sprayed out through the noise reduction chamber 110. When it is necessary to inspect or observe the noise reduction chamber 110, the cover plate 400 can be removed from the nozzle body 100 by bolts.

[0075] It should be noted that, see Figure 4 As shown, a sealing ring 410 is also provided on the nozzle body 100. The sealing ring 410 is provided on the cover plate 400 or at the opening 140. When the cover plate 400 is fixed to the nozzle body 100 with bolts, the cover plate 400 can press the sealing ring 410 at the opening 140, thereby filling and sealing the gap between the cover plate 400 and the opening 140, thus preventing fluid leakage at the opening 140 and improving the safety of the nozzle in this embodiment.

[0076] Secondly, this application provides a cleaning device that includes the aforementioned nozzle, thus possessing the corresponding technical effects and advantages.

[0077] The cleaning equipment in this embodiment of the application also includes a fluid supply device. The fluid supply device is connected to the nozzle connection channel 130 through an external delivery pipe. The fluid supply device is used to supply fluid to the nozzle. The fluid can be liquid, gas, or a gas-liquid mixture.

[0078] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A nozzle, characterized in that: include, A nozzle body (100) is provided inside the nozzle body (100), the noise reduction cavity (110) extends along a first direction and is used to receive fluid; a nozzle (200) is provided at the nozzle body (100), the nozzle (200) is located on one side of the noise reduction cavity (110) along the first direction and communicates with the noise reduction cavity (110); the noise reduction cavity (110) is used to deliver the fluid to the nozzle (200). A flow deflector (300) is disposed within the noise reduction cavity (110); when the fluid flows through the flow deflector (300), the flow deflector (300) is used to guide the fluid to generate eddies.

2. The nozzle according to claim 1, characterized in that: The spoiler (300) includes one or more deflectors (310) that extend along the first direction; Along the first direction and toward the nozzle (200), the cross-sectional area of ​​the guide plate (310) gradually increases in the second direction, which is perpendicular to the first direction.

3. The nozzle according to claim 2, characterized in that: When there are multiple guide vanes (310), the multiple guide vanes (310) are arranged at intervals along the second direction.

4. The nozzle according to claim 3, characterized in that: Of the plurality of the deflector plates (310), the deflector plate (310) located near the center is closer to the connection channel (130) of the nozzle body (100) than the deflector plate (310) located near the edge.

5. The nozzle according to claim 3, characterized in that: A connection hole (120) is provided at the nozzle body (100), and the connection hole (120) is used to connect the noise reduction cavity (110) and the nozzle (200).

6. The nozzle according to claim 5, characterized in that: The number of the connecting holes (120) is multiple; the gap between two adjacent guide plates (310) corresponds one-to-one with the multiple connecting holes (120) in the first direction.

7. The nozzle according to claim 2, characterized in that: The turbulence-disrupting element (300) includes one or more blocking elements (320) that extend along the second direction and at least partially block the noise reduction cavity (110); the blocking element (320) is provided with one or more through holes (321) that penetrate the blocking element (320) along the first direction.

8. The nozzle according to claim 7, characterized in that: When there are multiple blocking members (320), the multiple blocking members (320) are arranged sequentially at intervals along the first direction.

9. The nozzle according to any one of claims 1-8, characterized in that: At least a portion of the noise reduction cavity (110) is a gradient section (111) along the first direction and toward the nozzle (200), and the cross-sectional area of ​​the gradient section (111) gradually decreases in the second direction.

10. The nozzle according to claim 9, characterized in that: The spoiler (300) is located within the transition section (111).

11. The nozzle according to claim 1, characterized in that: The nozzle body (100) has an opening (140) on its outer surface, which is connected to the noise reduction cavity (110). A cover plate (400) is detachably covered at the opening (140), and a sealing ring (410) is provided between the cover plate (400) and the opening (140). The cover plate (400) is used to block the opening (140).

12. A cleaning device, characterized in that: include, Fluid supply device; The nozzle as described in any one of claims 1-11; The fluid supply device is connected to the nozzle via a delivery pipe, and the fluid supply device is used to supply the nozzle with at least one of a liquid and a gas.

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