Spray head assembly and spray cleaning device

Abstract

The invention relates to the field of cleaning devices, in particular to a spray head assembly and a spraying cleaning device. The nozzle assembly comprises a mounting seat and a rotating shaft; one end of the rotating shaft is a mounting end, and the mounting end is connected with the mounting seat; the other end of the rotating shaft is a spraying end, and the spraying end is opposite to a to-be-cleaned area in a to-be-cleaned part; the rotating shaft is rotationally mounted on the mounting seat, and nozzles are formed in the circumferential direction of the spraying end so as to rotationally spray out cleaning fluid. According to the spray head assembly provided by the invention, the spraying end of the rotating shaft extends into a precise part with a small size, the part is cleaned by using the cleaning fluid sprayed out of the spraying end in a high-speed rotating state, suspended particles adhered to the part can be washed down, and a good cleaning effect is achieved.

Description

[0001] This application is a divisional application of the Chinese application with application number 2023111675546, application date September 11, 2023, and invention name “Nozzle assembly and jet cleaning device”. Technical Field

[0002] The present application relates to the field of cleaning devices, and in particular to a nozzle assembly and a jet cleaning device. Background Art

[0003] When cleaning small components such as VCM motors, two-fluid flushing or clean gas flushing is generally used, and the components are dried after flushing. However, the above cleaning methods can only clean the dirt on the surface of the components, and the cleaning effect on the residual glue and stubborn particles inside the components and corners is poor. Summary of the invention

[0004] The purpose of the present application is to provide a nozzle assembly and a jet cleaning device, which can clean suspended particles adhered to components and have a better cleaning effect.

[0005] The present application provides a spray head assembly, including a mounting seat and a rotating shaft;

[0006] One end of the rotating shaft is a mounting end, and the mounting end is connected to the mounting seat; the other end of the rotating shaft is a spraying end, and the spraying end is opposite to the area to be cleaned in the object to be cleaned;

[0007] The rotating shaft is rotatably mounted on the mounting seat, and a nozzle is arranged in the circumference of the spray end to rotate and spray out the cleaning fluid; the rotating shaft is provided with a power flow channel, and the outlet of the power flow channel is the nozzle;

[0008] The cleaning fluid includes a power gas source, which enters the power flow channel from an inlet of the power flow channel and flows out from an outlet of the power flow channel to drive the rotating shaft to rotate relative to the mounting seat.

[0009] In the above technical solution, further, the power flow channel includes a converging portion, a diverting portion and a swirling portion;

[0010] One end of the confluence portion is the inlet of the power flow channel; the number of the diversion portions is multiple, and one end of the multiple diversion portions is connected to the other end of the confluence portion; the direction of the flow path of the confluence portion and the direction of the flow path of the diversion portion are both axial to the rotating shaft;

[0011] The swirl portion is arranged correspondingly to the diversion portion, one end of the swirl portion is connected to the other end of the diversion portion, and the other end of the swirl portion forms the nozzle; the swirl portion has an arc-shaped flow path, and the flow paths of multiple swirl portions are rotationally symmetrically arranged on a preset plane of the injection end, and the preset plane is perpendicular to the direction of the flow path of the confluence portion.

[0012] In the above technical solution, further, the mounting seat is provided with a mounting cavity, the mounting end is rotatably mounted in the mounting cavity through a bearing, and the injection end extends out of the mounting cavity;

[0013] The mounting seat is provided with a first collecting port, and the inlet of the power flow channel is correspondingly provided with a second collecting port; the cleaning fluid flows through the first collecting port and the second collecting port in sequence.

[0014] In the above technical solution, further, along the flow direction of the cleaning fluid, the size of the first manifold gradually decreases, and the size of the second manifold gradually decreases;

[0015] The second collecting port is sleeved on the first collecting port.

[0016] In the above technical solution, further, a sealing assembly is provided between the mounting seat and the rotating shaft;

[0017] The sealing assembly comprises a first sealing member and a second sealing member, wherein the first sealing member is connected to the inner wall of the mounting seat, the second sealing member is connected to the rotating shaft, and the second sealing member can rotate relative to the first sealing member;

[0018] A labyrinth structure is formed between the first sealing member and the second sealing member.

[0019] The present application also provides a jet cleaning device, comprising the nozzle assembly described in the above scheme.

[0020] In the above technical solution, further, it also includes a first support platform;

[0021] There are multiple nozzle assemblies, and the multiple nozzle assemblies are arranged in an array on the first support platform;

[0022] The first support platform is provided with a main flow channel and a plurality of branch flow channels connected with the main flow channel. The branch flow channels are provided corresponding to the nozzle assembly. The cleaning fluid flows through the main flow channel, the branch flow channels and the nozzle assembly in sequence.

[0023] In the above technical solution, further, it also includes a second support platform;

[0024] The first support platform and the second support platform are spaced apart in the height direction, and the second support platform is located below the first support platform;

[0025] The second support platform is provided with a fixing hole for fixing the tray, the tray is provided with a mounting hole corresponding to the nozzle assembly, and the mounting hole is used to fix the object to be cleaned.

[0026] In the above technical solution, further, a support column and a positioning pin are provided between the first support platform and the second support platform;

[0027] A leveling device is provided between the first supporting platform and the second supporting platform;

[0028] A clamping and fixing device is arranged between the first supporting platform and the second supporting platform.

[0029] In the above technical solution, further, it also includes a base and a sewage pipe;

[0030] The base is located on a side of the second support platform away from the first support platform, and the base is spaced apart from the second support platform;

[0031] The drain pipe is arranged between the second support platform and the base; the inlet of the drain pipe is opposite to the tray, and the drain pipe is connected to the suction device to discharge the cleaning fluid after cleaning the object to be cleaned; the size of the drain pipe gradually decreases in the direction away from the second support platform.

[0032] Compared with the prior art, the beneficial effects of this application are:

[0033] The nozzle assembly provided in the present application extends the spray end of the rotating shaft into the interior of a small-sized precision component, and uses the cleaning fluid sprayed from the spray end to clean the component while rotating at a high speed. It can wash away the suspended particles adhering to the component and has a good cleaning effect.

[0034] The present application also provides a spray cleaning device, including the spray head assembly described in the above solution. Based on the above analysis, it can be seen that the spray cleaning device also has the above beneficial effects, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 A first structural schematic diagram of the spray cleaning device provided in the present application;

[0037] Figure 2 A second structural schematic diagram of the spray cleaning device provided in this application;

[0038] Figure 3 A schematic diagram of the arrangement of the nozzle assembly of the spray cleaning device provided in this application;

[0039] Figure 4 A schematic diagram of the structure of the second plate provided in this application;

[0040] Figure 5 A first structural schematic diagram of the nozzle assembly provided in this application;

[0041] Figure 6 A second structural schematic diagram of the nozzle assembly provided in this application;

[0042] Figure 7 A third structural schematic diagram of the nozzle assembly provided in this application;

[0043] Figure 8 Schematic diagram of the working principle of the nozzle assembly provided for this application.

[0044] In the figure: 101-nozzle assembly; 102-mounting seat; 103-rotating shaft; 104-mounting end; 105-injection end; 106-nozzle; 107-power flow channel; 108-confluence part; 109-dividing part; 110-swirl part; 111-bearing; 112-first collecting port; 113-second collecting port; 114-shaft body; 115-intake joint; 116-sealing plate; 117-sealing assembly; 118-first sealing member; 119-second sealing member; 1 20-labyrinth structure; 121-first support platform; 122-first plate; 123-second plate; 124-main channel; 125-branch channel; 126-second support platform; 127-support column; 128-locating pin; 129-micrometer; 130-base; 131-column; 132-drain pipe; 133-collecting part; 134-discharging part; 135-arc groove; 136-connecting hole; 137-handle; 138-components; 139-washed object. DETAILED DESCRIPTION

[0045] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0046] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0047] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] Embodiment 1

[0049] See also Figures 1 to 8 As shown, the spray cleaning device provided by the present application includes a spray head assembly 101, and the spray head assembly 101 includes a mounting seat 102 and a rotating shaft 103. One end of the rotating shaft 103 is a mounting end 104, and the mounting end 104 is connected to the mounting seat 102, and the other end of the rotating shaft 103 is a spray end 105, and the spray end 105 is opposite to the area to be cleaned in the object to be cleaned; the rotating shaft 103 is rotatably mounted on the mounting seat 102, and a nozzle 106 is arranged in the circumference of the spray end 105 to rotate and spray out the cleaning fluid.

[0050] Specifically, if Figure 8 As shown, when the jet cleaning device provided in the present application cleans the inner ring of components 138 such as a VCM motor, the jet end 105 of the rotating shaft 103 can be placed in the inner ring of the VCM motor, and the jet end 105 is circumferentially provided with nozzles 106 that can spray cleaning fluid to the VCM motor. The impact force formed by the spraying can wash off the suspended particles and other washed objects 139 adhering to the VCM motor, thereby improving the cleaning effect.

[0051] During the process of spraying the cleaning fluid, the rotating shaft 103 can rotate relative to the mounting base 102, thereby spraying the cleaning fluid in a 360-degree rotation, so that the inner ring of the VCM motor can be flushed by the cleaning fluid at all locations, avoiding the generation of cleaning dead corners, and further improving the cleaning effect of smaller components such as the VCM motor.

[0052] The jet cleaning device provided in the present application extends the jet end 105 of the rotating shaft 103 into the interior of a small precision component, and uses the cleaning fluid sprayed from the jet end 105 to clean the component under high-speed rotation, thereby washing away the suspended particles adhering to the component and having a good cleaning effect.

[0053] In an optional scheme of this embodiment, the rotating shaft 103 is provided with a power flow channel 107, and the outlet of the power flow channel 107 is a nozzle 106; the cleaning fluid includes a power gas source, which is specifically compressed air, and the compressed air enters the power flow channel 107 from the inlet of the power flow channel 107 and flows out from the outlet of the power flow channel 107 to drive the rotating shaft 103 to rotate relative to the mounting seat 102.

[0054] In this embodiment, the present application uses compressed air as a power source, so that the nozzle 106 can spray out a cleaning fluid to achieve a cleaning function, and can also drive the rotating shaft 103 to rotate at a high speed relative to the mounting seat 102 to flush various places of the inner ring of the VCM motor. Optionally, the cleaning fluid also includes a cleaning liquid to further enhance the cleaning effect. In other words, the cleaning fluid can be a gas or a gas-liquid mixture.

[0055] Specific as Figures 5 to 7 As shown, the power flow channel 107 includes a converging portion 108, a diverging portion 109 and a swirling portion 110 arranged in sequence from top to bottom. The top of the converging portion 108 forms the inlet of the power flow channel 107. Figure 5 The number of the diverter parts 109 shown in the figure is two, and the two diverter parts 109 are evenly distributed on the rotating shaft 103. One end of the two diverter parts 109 is connected to the bottom end of the converging part 108, and the direction of the flow path of the converging part 108 is consistent with the direction of the flow path of the diverter part 109, both of which are axial to the rotating shaft 103. The clean fluid can enter the converging part 108 from the inlet, and then enter each diverter part 109 from the converging part 108. The cavity of the converging part 108 is relatively thick, and the cavity of the diverter part 109 is relatively thin, so that the pressure in the diverter part 109 is increased, thereby accelerating the flow rate of the clean fluid in 109.

[0056] The swirl portion 110 is also provided in two to correspond to the diverter portion 109 , one end of the swirl portion 110 is connected to the other end of the diverter portion 109 , and the other end of the swirl portion 110 forms a nozzle 106 so that the cleaning fluid can enter the corresponding swirl portion 110 from each diverter portion 109 .

[0057] In order to enable the cleaning fluid to generate a driving force to drive the rotating shaft 103 to rotate relative to the mounting seat 102 when it is ejected from the nozzle 106 of the swirl portion 110, the swirl portion 110 is provided with an arc-shaped flow path, and the flow paths of the two swirl portions 110 are rotationally symmetrically arranged on the preset plane with the projection point of the central axis of the rotating shaft 103 on the preset plane of the injection end 105 as the center, and the preset plane is perpendicular to the direction of the flow path of the confluence portion 108. In other words, when the cleaning fluid flows through multiple swirl portions 110, shear stress is generated in the swirl portion 110, thereby generating a rotational torque, thereby enabling the rotating shaft 103 to rotate relative to the mounting seat 102.

[0058] It should be noted that the number of the diverter portions 109 and the swirl portions 110 is not limited to Figure 5 The two shown in the figure can also be set to three according to actual conditions ( Figure 6 shown), four, etc.

[0059] In an optional solution of this embodiment, the mounting seat 102 is provided with a mounting cavity, and the mounting end 104 of the rotating shaft 103 is rotatably mounted in the mounting cavity through a bearing 111, so that the friction force is smaller and the rotation speed is higher when the rotating shaft 103 rotates, and the injection end 105 of the rotating shaft 103 extends out of the mounting cavity. Specifically, the mounting seat 102 is provided with a first manifold 112, and a second manifold 113 is correspondingly provided at the inlet of the power flow channel 107. The cleaning fluid flows through the first manifold 112 and the second manifold 113 in sequence, and is ejected from the nozzle 106 of the injection end 105 to rinse the parts to be cleaned.

[0060] Furthermore, along the flow direction of the clean fluid, the size of the first collecting port 112 gradually decreases, and the size of the second collecting port 113 gradually decreases to achieve the effect of converging and pressurizing the clean fluid; the second collecting port 113 is sleeved on the first collecting port 112, so that the clean fluid entering the rotating shaft 103 will not enter the gap between the rotating shaft 103 and the mounting seat 102 at the first collecting port 112.

[0061] In this embodiment, if Figures 5 to 7 As shown, the rotating shaft 103 includes a shaft body 114, an air inlet connector 115 and a sealing plate 116, wherein the air inlet connector 115 is installed at the top of the shaft body 114 to form a second manifold 113; an arc groove 135 is provided at the bottom end of the shaft body 114, and the shaft body 114 and the sealing plate 116 are correspondingly provided with connecting holes 136, and the sealing plate 116 is installed at the bottom end of the shaft body 114 through the connecting holes 136, so that the sealing plate 116 and the arc groove 135 are surrounded to form a swirl portion 110. The above structure of the rotating shaft 103 can facilitate the processing and manufacturing of the rotating shaft 103.

[0062] In an optional scheme of this embodiment, a sealing assembly 117 is arranged between the mounting seat 102 and the rotating shaft 103; the sealing assembly 117 includes a first seal 118 and a second seal 119, the first seal 118 is connected to the inner wall of the mounting seat 102, the second seal 119 is connected to the rotating shaft 103, and the second seal 119 can rotate relative to the first seal 118; a maze structure 120 is formed between the first seal 118 and the second seal 119.

[0063] In this embodiment, Figure 7 Two upper and lower bearings 111 are arranged in the mounting cavity in the middle to make the rotation of the rotating shaft 103 more stable. Since the rotating shaft 103 rotates relative to the mounting seat 102, the conventional filling and sealing structure cannot be used between the two. Therefore, a sealing assembly 117 is arranged between the two bearings 111, and the sealing assembly 117 includes a first seal 118 and a second seal 119. The labyrinth structure 120 formed between the first seal 118 and the second seal 119 is used to seal the gap between the mounting seat 102 and the rotating shaft 103 to prevent the cleaning fluid from leaking from this position. The first seal 118 is connected to the mounting seat 102, and the second seal 119 is connected to the rotating shaft 103, and the second seal 119 can rotate relative to the first seal 118, so that the setting of the sealing assembly 117 does not affect the rotation of the rotating shaft 103.

[0064] Embodiment 2

[0065] The spray cleaning device in the second embodiment is an improvement on the above embodiment. The technical contents disclosed in the above embodiment will not be described repeatedly, and the contents disclosed in the above embodiment also belong to the contents disclosed in the second embodiment.

[0066] In an optional solution of this embodiment, the spray cleaning device further includes a first support platform 121, such as Figures 1 to 4 As shown, the first support platform 121 includes a first plate 122 and a second plate 123, and the number of nozzle assemblies 101 is multiple, and multiple nozzle assemblies 101 are arranged in an array on the first plate 122 below. The second plate 123 is located above the first plate 122, and the second plate 123 is provided with a main channel 124 and multiple branch channels 125 connected to the main channel 124. The branch channels 125 are arranged corresponding to the nozzle assemblies 101 on the first plate 122, so that the cleaning fluid flows through the main channel 124, the branch channels 125 and the nozzle assemblies 101 in sequence, and is sprayed from the multiple nozzle assemblies 101, so as to achieve the purpose of cleaning multiple VCM motors at the same time, thereby improving the cleaning efficiency.

[0067] In an optional solution of this embodiment, the spray cleaning device further includes a second support platform 126. The first support platform 121 and the second support platform 126 are arranged at intervals in the height direction, and the second support platform 126 is located below the first support platform 121. The second support platform 126 is provided with a fixing hole to fix the tray, and the tray is provided with a mounting hole corresponding to the spray head assembly 101, and the mounting hole is used to fix the part to be cleaned. That is, the multiple spray head assemblies 101 installed on the first support platform 121 can spray clean the multiple VCM motors fixed on the second support platform 126.

[0068] Specifically, a support column 127 is provided between the first support platform 121 and the second support platform 126, the bottom end of the support column 127 is threadedly connected to the first support platform 121, and the second support platform 126 is placed on the top of the support column 127, so that the support column 127 can support the second support platform 126, and the distance between the first support platform 121 and the second support platform 126 can be adjusted. The first support platform 121 is also provided with a positioning pin 128, and the second support platform 126 is correspondingly provided with a positioning hole, so that when the second support platform 126 is placed on the top of the support column 127, the position of the second support platform 126 can be positioned.

[0069] Furthermore, a leveling device is provided between the first support platform 121 and the second support platform 126. Specifically, the leveling device is a plurality of micrometers 129 provided on the edges of the first support platform 121 and the second support platform 126, so as to measure the distance between the first support platform 121 and the second support platform 126 from various positions to ensure that the first support platform 121 and the second support platform 126 are provided in parallel.

[0070] Furthermore, a clamping and fixing device is also provided between the first support platform 121 and the second support platform 126. The clamping and fixing device can be specifically an elbow bracket. After the second support platform 126 is placed, the elbow bracket can be used to clamp and fix the first support platform 121 and the second support platform 126 to avoid the position of the nozzle assembly 101 from moving during operation and affecting the cleaning effect.

[0071] Optionally, a handle 137 is provided above the first support platform 121 , and a worker can hold the handle 137 to lift the first support platform 121 , thereby exposing the object to be cleaned on the second support platform 126 .

[0072] In an optional scheme of this embodiment, the spray cleaning device also includes a base 130 and a sewage pipe 132. The base 130 is located on the side of the second support platform 126 away from the first support platform 121. A plurality of columns 131 are arranged between the base 130 and the second support platform 126 to form a gap between the base 130 and the second support platform 126 to accommodate the sewage pipe 132.

[0073] The sewage pipe 132 is arranged between the second support platform 126 and the base 130. The inlet of the sewage pipe 132 is opposite to the tray, and the sewage pipe 132 is connected to the suction device, so that the sewage pipe 132 forms a negative pressure to discharge the cleaning fluid that has cleaned the object to be cleaned in time. Specifically, the sewage pipe 132 includes a collecting part 133 and a discharge part 134. In the direction away from the second support platform 126, the size of the collecting part 133 gradually decreases, and the collecting part 133 is funnel-shaped to achieve the collection effect of the cleaning fluid. The discharge part 134 is connected to the collecting part 133, and can discharge the cleaning fluid with suspended particles.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application. In addition, a person skilled in the art can understand that although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments means being within the scope of the present application and forming different embodiments.

Claims

1. A nozzle assembly, characterized in that: Includes a mounting base and a rotating shaft; One end of the rotating shaft is a mounting end, and the mounting end is connected to the mounting seat; the other end of the rotating shaft is a spraying end, and the spraying end is opposite to the area to be cleaned in the object to be cleaned; The rotating shaft is rotatably mounted on the mounting seat, and a nozzle is arranged in the circumference of the spray end to rotate and spray out the cleaning fluid; the rotating shaft is provided with a power flow channel, and the outlet of the power flow channel is the nozzle; The cleaning fluid includes a power gas source, which enters the power flow channel from an inlet of the power flow channel and flows out from an outlet of the power flow channel to drive the rotating shaft to rotate relative to the mounting seat.

2. The nozzle assembly according to claim 1, characterized in that: The power flow channel includes a converging portion, a diverging portion and a swirling portion; One end of the confluence portion is the inlet of the power flow channel; the number of the diversion portions is multiple, and one end of the multiple diversion portions is connected to the other end of the confluence portion; the direction of the flow path of the confluence portion and the direction of the flow path of the diversion portion are both axial to the rotating shaft; The swirl portion is arranged correspondingly to the diversion portion, one end of the swirl portion is connected to the other end of the diversion portion, and the other end of the swirl portion forms the nozzle; the swirl portion has an arc-shaped flow path, and the flow paths of multiple swirl portions are rotationally symmetrically arranged on a preset plane of the injection end, and the preset plane is perpendicular to the direction of the flow path of the confluence portion.

3. The nozzle assembly according to claim 1, characterized in that: The mounting seat is provided with a mounting cavity, the mounting end is rotatably mounted in the mounting cavity through a bearing, and the injection end extends out of the mounting cavity; The mounting seat is provided with a first flow collecting port, and the inlet of the power flow channel is correspondingly provided with a second flow collecting port; The cleaning fluid flows through the first manifold and the second manifold in sequence.

4. The nozzle assembly according to claim 3, characterized in that: Along the flow direction of the cleaning fluid, the size of the first manifold gradually decreases, and the size of the second manifold gradually decreases; The second collecting port is sleeved on the first collecting port.

5. The nozzle assembly according to claim 3, characterized in that: A sealing assembly is provided between the mounting seat and the rotating shaft; The sealing assembly comprises a first sealing member and a second sealing member, wherein the first sealing member is connected to the inner wall of the mounting seat, the second sealing member is connected to the rotating shaft, and the second sealing member can rotate relative to the first sealing member; A labyrinth structure is formed between the first sealing member and the second sealing member.

6. A jet cleaning device, characterized in that: The invention comprises a spray head assembly as claimed in any one of claims 1 to 5.

7. The spray cleaning device according to claim 6, characterized in that: Also includes a first support platform; There are multiple nozzle assemblies, and the multiple nozzle assemblies are arranged in an array on the first support platform; The first support platform is provided with a main flow channel and a plurality of branch flow channels connected with the main flow channel. The branch flow channels are provided corresponding to the nozzle assembly. The cleaning fluid flows through the main flow channel, the branch flow channels and the nozzle assembly in sequence.

8. The spray cleaning device according to claim 7, characterized in that: Also includes a second support platform; The first support platform and the second support platform are spaced apart in the height direction, and the second support platform is located below the first support platform; The second support platform is provided with a fixing hole for fixing the tray, the tray is provided with a mounting hole corresponding to the nozzle assembly, and the mounting hole is used to fix the object to be cleaned.

9. The spray cleaning device according to claim 8, characterized in that: A support column and a positioning pin are provided between the first support platform and the second support platform; A leveling device is provided between the first supporting platform and the second supporting platform; A clamping and fixing device is arranged between the first supporting platform and the second supporting platform.

10. The spray cleaning device according to claim 8, characterized in that It also includes a base and sewage pipe; The base is located on a side of the second support platform away from the first support platform, and the base is spaced apart from the second support platform; The sewage discharge pipe is arranged between the second support platform and the base; the inlet of the sewage discharge pipe is opposite to the tray, and the sewage discharge pipe is connected to the suction device to discharge the cleaning fluid after cleaning the object to be cleaned.

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