Workpiece surface cleaning device

Abstract

The utility model discloses a workpiece surface cleaning device, which relates to the technical field of workpiece surface cleaning, including a cleaning table, a fixing box is fixedly connected to the middle side of the top of the cleaning table, a displacement mechanism is arranged at the front end of the fixing box, mounting plates are arranged at the front and rear sides of the top of the fixing box respectively, a servo motor is arranged at the upper side of the front end of the front mounting plate, the bottoms of the two mounting plates are fixedly connected to U-shaped supporting plates, the upper sides of the opposite sides of the two mounting plates are provided with clamping assemblies, the tops of the opposite sides of the two columns are fixedly connected to fixing plates, the opposite sides of the two fixing plates are fixedly connected to arc plates, the interior of the arc plates is provided with a cleaning mechanism, and the outer wall of the left column is provided with a control panel. The utility model adjusts the spacing between the two clamping assemblies to clamp and fix them, manipulates the displacement mechanism to drive the workpiece to move forward and backward, and rotates the workpiece through the servo motor.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece surface cleaning, in particular to a workpiece surface cleaning device. Background Art

[0002] Workpiece, a product component in the manufacturing process, is also called a workpiece, workpiece, courseware, hardware, etc. There are various types of workpiece processing methods, including turning, milling, planing, grinding, casting, forging, etc. The purpose of surface treatment is to meet the corrosion resistance, wear resistance, decoration or other special functional requirements of the product. For metal castings, our more commonly used surface treatment methods are mechanical grinding, chemical treatment, surface heat treatment, spraying surface, surface treatment is to clean, sweep, deburr, degrease, descaling, etc. of the workpiece surface. The following problems exist in the existing technology:

[0003] When cleaning the surface of a workpiece, the existing cleaning device clamps and fixes the workpiece through a clamping assembly. Since the clamping assembly is usually fixed on a cleaning table, it is not convenient to move the workpiece horizontally during the cleaning process, and it is not convenient to rotate the clamped workpiece, which reduces the cleaning efficiency. Secondly, during the cleaning process, a water pipe is usually used to rinse the surface of the workpiece, which makes the rinsing process time-consuming and labor-intensive, affecting the cleaning effect. Utility Model Content

[0004] The utility model provides a workpiece surface cleaning device to solve the problems existing in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A workpiece surface cleaning device comprises a cleaning table, wherein a fixing box is fixedly connected to the middle side of the top of the cleaning table, a displacement mechanism is arranged at the front end of the fixing box, and the rear side of the outer wall of the displacement mechanism passes through to the inner rear side of the fixing box, mounting plates are respectively arranged on the front and rear sides of the top of the fixing box, a servo motor is arranged on the upper side of the front end of the front mounting plate, the bottoms of the two mounting plates are fixedly connected to U-shaped supporting plates, the opposite surfaces of the two U-shaped supporting plates in the vertical direction are arranged on the left and right sides of the outer wall of the fixing box, and the upper sides of the opposite surfaces of the two mounting plates are arranged with clamping assemblies, the left and right ends of the middle side of the top of the cleaning table are respectively fixedly connected to columns, the tops of the opposite surfaces of the two columns are fixedly connected to the fixing plates, and the opposite surfaces of the two fixing plates are fixedly connected to arc plates, the cleaning mechanism is arranged inside the arc plate, the fixing box, the mounting plate and the clamping assembly are arranged on the inner side of the arc plate, and the outer wall of the left column is provided with a control panel.

[0007] A further improvement of the technical solution of the utility model is that the displacement mechanism includes a stepper motor, a lead screw, a bearing 1 and a threaded sleeve, the output end of the stepper motor is fixedly connected to the front end of the lead screw, the rear end of the outer wall of the lead screw penetrates to the inner rear side of the fixed box and is rotatably connected to the front end of the bearing 1, and the outer wall of the lead screw penetrates the front and rear ends of the middle part of the threaded sleeve and is threadedly connected therebetween.

[0008] A further improvement of the technical solution of the utility model lies in that: the rear end of the bearing 1 is fixedly connected to the inner rear end of the fixed box, the top of the threaded sleeve is fixedly connected to the middle side of the bottom of the horizontal surface of the front U-shaped support plate, the opposite surfaces of the two U-shaped support plates in the vertical direction are fixedly connected with sliders, the left and right sides of the outer wall of the fixed box are respectively fixedly connected to the limiting plates, the ends of the two limiting plates away from each other are provided with sliding grooves, and the outer wall of the slider is slidably connected to the inner wall of the sliding groove.

[0009] A further improvement of the technical solution of the utility model is that: the output shaft of the servo motor is fixedly connected with a rotating column, and the outer wall of the rotating column passes through the left and right ends of the front mounting plate.

[0010] A further improvement of the technical solution of the utility model is that the clamping assembly includes a U-shaped clamping plate, an internally threaded tube, a screw, a knob, bearing two and bearing two, the bottom of the internally threaded tube is fixedly connected to the top of the upper lateral surface of the U-shaped clamping plate, the bottom of the outer wall of the screw penetrates into the interior of the clamping assembly through the internally threaded tube and is threadedly connected therebetween, the knob is fixedly connected to the top of the screw, the inner wall of bearing two is rotatably connected to the bottom of the outer wall of the screw, the bottom of bearing two is fixedly connected to the top of the pressure plate, the bottom of the pressure plate is fixedly connected with a number of anti-slip strips in a matrix column, and an anti-slip pad is provided at the top of the lateral surface of the lower U-shaped clamping plate.

[0011] A further improvement of the technical solution of the utility model is that the front end of the U-shaped clamp on the front side is fixedly connected to the rear end of the rotating column, and the rear end of the U-shaped clamp on the rear side is rotatably connected to a rotating shaft, and the rear end of the rotating shaft is fixedly connected to the upper side of the front end of the rear mounting plate.

[0012] A further improvement of the technical solution of the utility model lies in that: a connecting block is fixedly connected to the top of the inner wall of the arc plate, the cleaning mechanism comprises an arc tube 1, an arc tube 2 and a water inlet pipe, the arc tube 1 and the arc tube 2 are respectively arranged on the front and rear sides of the inner wall of the arc plate, the front and rear ends of the connecting block are fixedly connected to the opposite surfaces of the arc tube 1 and the arc tube 2, a plurality of nozzles are fixedly connected in a matrix column on the inner sides of the arc tube 1 and the arc tube 2, the outer wall of the water inlet pipe passes through the right side fixed plate and the left and right ends of the column through the arc plate and is fixedly connected therebetween, a control valve is movably connected to the outer wall of the water inlet pipe close to the column, and a flange is fixedly connected to the outer wall of the right end of the water inlet pipe.

[0013] A further improvement of the technical solution of the utility model lies in that: the opposite surfaces of the arc tube 1 and the arc tube 2 close to the water inlet pipe are fixedly connected with mounting pipes, the front and rear sides of the water inlet pipe are respectively fixedly connected with connecting sleeves, the outer wall of the connecting sleeve is fixedly connected to the inner wall of the mounting pipe, and the arc tube 1, the arc tube 2, the nozzle, the water inlet pipe, the connecting sleeve and the mounting pipe are interconnected.

[0014] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0015] 1. The utility model provides a workpiece surface cleaning device, which adopts the cooperation between a fixing box, a displacement mechanism, a mounting plate, a servo motor, a U-shaped support plate and a clamping assembly. The mounting plate on the rear side is used to displace the clamping assembly forward and backward through the U-shaped support plate, so that the spacing between the two clamping assemblies is adjusted, so that the two clamping assemblies are operated to clamp and fix the two ends of the workpiece, and then the workpiece is driven to move forward and backward by operating the displacement mechanism, and the workpiece is rotated by the servo motor during the displacement process, which solves the problem that the existing cleaning device clamps and fixes the workpiece through the clamping assembly when cleaning the workpiece surface. Since the clamping assembly is usually fixed on the cleaning table, it is not convenient to move the workpiece horizontally during the cleaning process, and it is not convenient to rotate the clamped workpiece, which reduces the cleaning work efficiency. The utility model achieves the beneficial effects of facilitating the clamping of workpieces of different sizes, facilitating the displacement and rotation of the workpiece during the cleaning process, and improving the cleaning work efficiency.

[0016] 2. The utility model provides a workpiece surface cleaning device, which adopts the cooperation between an arc plate, a cleaning mechanism, a fixed plate and a column. By connecting the water inlet pipe of the cleaning mechanism to a water source, the surface of the workpiece can be cleaned simultaneously through a plurality of nozzles in the cleaning mechanism, thereby accelerating the cleaning speed. This solves the problem that during the cleaning process, the surface of the workpiece is usually flushed with a water pipe, which makes the flushing process time-consuming and labor-intensive and affects the cleaning effect. The utility model achieves the beneficial effect of accelerating the cleaning speed of the workpiece and improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the workpiece surface cleaning device of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the displacement mechanism of the utility model;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamping assembly of the utility model;

[0020] Figure 4The three-dimensional structure diagram of the cleaning mechanism of the utility model is shown in FIG.

[0021] Figure 5 It is a partially enlarged schematic diagram of the three-dimensional structure A of the present utility model.

[0022] In the figure: 1. cleaning table; 2. fixing box; 21. limit plate; 210. slide; 3. displacement mechanism; 31. stepping motor; 32. lead screw; 33. bearing 1; 34. threaded sleeve; 4. mounting plate; 5. servo motor; 51. rotating column; 6. U-shaped support plate; 61. slider; 7. clamping assembly; 71. U-shaped clamping plate; 72. internal threaded pipe; 73. screw; 74. knob; 75. bearing 2; 76. pressure plate; 77. anti-slip strip; 78. anti-slip pad; 8. arc plate; 81. connecting block; 9. cleaning mechanism; 91. arc tube 1; 92. arc tube 2; 93. nozzle; 94. water inlet pipe; 941. connecting sleeve; 95. control valve; 96. flange; 97. mounting pipe; 10. fixing plate; 11. column; 12. control panel. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods:

[0024] like Figure 1 As shown, the utility model provides a workpiece surface cleaning device, including a cleaning table 1, a fixing box 2 is fixedly connected to the middle side of the top of the cleaning table 1, a displacement mechanism 3 is arranged at the front end of the fixing box 2, and the rear side of the outer wall of the displacement mechanism 3 penetrates to the inner rear side of the fixing box 2, mounting plates 4 are arranged at the front and rear sides of the top of the fixing box 2, a servo motor 5 is arranged at the upper side of the front end of the front mounting plate 4, and the bottoms of the two mounting plates 4 are fixedly connected to U-shaped supporting plates 6, and the opposite surfaces of the two U-shaped supporting plates 6 in the vertical direction are arranged on the left and right sides of the outer wall of the fixing box 2. On both sides, the upper sides of the two mounting plates 4 are provided with clamping assemblies 7, the left and right ends of the middle side of the top of the washing table 1 are fixedly connected with columns 11 respectively, the tops of the opposite sides of the two columns 11 are fixedly connected with fixing plates 10, the opposite sides of the two fixing plates 10 are fixedly connected with arc-shaped plates 8, the inside of the arc-shaped plates 8 is provided with a cleaning mechanism 9, the fixing box 2, the mounting plate 4 and the clamping assembly 7 are arranged on the inner side of the arc-shaped plate 8, the left side of the outer wall of the cleaning mechanism 9 penetrates to the left end of the left column 11, and the outer wall of the left column 11 is provided with a control panel 12;

[0025] A fixing box 2, a displacement mechanism 3, a mounting plate 4, a servo motor 5, a U-shaped support plate 6, a clamping assembly 7, an arc plate 8 and a cleaning mechanism 9 are provided. Through the coordinated operation among the fixing box 2, the mounting plate 4, the servo motor 5, the U-shaped support plate 6 and the clamping assembly 7, workpieces of different sizes can be clamped and fixed conveniently. Then, through the coordinated operation of the arc plate 8 and the cleaning mechanism 9, water is transported and sprayed out. Through the operation of the displacement mechanism 3 and the servo motor 5, the workpiece is driven to move horizontally. At the same time, the servo motor 5 drives the workpiece to rotate, so that the surface of the clamped workpiece is cleaned in all directions.

[0026] like Figure 2 As shown, the utility model provides a technical solution for a workpiece surface cleaning device: the displacement mechanism 3 includes a stepping motor 31, a lead screw 32, a bearing 33 and a threaded sleeve 34, the output end of the stepping motor 31 is fixedly connected to the front end of the lead screw 32, the rear end of the outer wall of the lead screw 32 penetrates to the inner rear side of the fixed box 2 and is rotatably connected to the front end of the bearing 33, the outer wall of the lead screw 32 penetrates the front and rear ends of the middle part of the threaded sleeve 34 and is threadedly connected, the rear end of the bearing 33 is fixedly connected to the inner rear end of the fixed box 2, the top of the threaded sleeve 34 is fixedly connected to the middle side of the bottom of the horizontal surface of the front U-shaped support plate 6, the lead screw 32 is started to rotate by the stepping motor 31, and the threaded sleeve 34 is connected The front U-shaped support plate 6 is connected so as to drive the clamping assembly 7 on the front side to move. The opposite surfaces of the two U-shaped support plates 6 in the vertical direction are fixedly connected with sliders 61. The left and right sides of the outer wall of the fixed box 2 are respectively fixedly connected with the limit plates 21. The ends of the two limit plates 21 that are away from each other are provided with slide grooves 210. The outer wall of the slider 61 is slidably connected with the inner wall of the slide groove 210. The slider 61 slides inside the slide groove 210, which limits the moving trajectory of the U-shaped support plate 6 driven by the threaded sleeve 34, while displacing the rear mounting plate 4 forward and backward. The output shaft of the servo motor 5 is fixedly connected with a rotating column 51, and the outer wall of the rotating column 51 passes through the left and right ends of the front mounting plate 4.

[0027] like Figure 3As shown, the utility model provides a technical solution for a workpiece surface cleaning device: the clamping assembly 7 includes a U-shaped clamping plate 71, an internally threaded tube 72, a screw 73, a knob 74, a bearing 75 and a bearing 75, the bottom of the internally threaded tube 72 is fixedly connected to the top of the upper lateral surface of the U-shaped clamping plate 71, the bottom of the outer wall of the screw 73 passes through the internally threaded tube 72 to the inside of the clamping assembly 7 and is threadedly connected therebetween, the knob 74 is fixedly connected to the top of the screw 73, the inner wall of the bearing 75 is rotatably connected to the bottom of the outer wall of the screw 73, and the bottom of the bearing 75 is fixedly connected to the top of the pressure plate 76 The bottom of the pressure plate 76 is fixedly connected with a plurality of anti-skid strips 77 in a matrix column, and an anti-skid pad 78 is provided on the top of the transverse surface of the lower U-shaped clamping plate 71. The front end of the front U-shaped clamping plate 71 in the vertical direction is fixedly connected to the rear end of the rotating column 51, and the rear end of the rear U-shaped clamping plate 71 in the vertical direction is rotatably connected with a rotating shaft, and the rear end of the rotating shaft is fixedly connected to the upper side of the front end of the rear mounting plate 4. The pressure plate 76 is driven to move up and down by rotating the screw 73, so as to facilitate clamping and fixing the two ends of the workpiece. The anti-skid strips 77 and anti-skid pads 78 increase the friction of the workpiece surface and improve the stability of the clamping.

[0028] like Figure 4-5 As shown, the utility model provides a technical solution for a workpiece surface cleaning device: a connecting block 81 is fixedly connected to the top of the inner wall of the arc plate 8, and the cleaning mechanism 9 includes an arc tube 1 91, an arc tube 2 92 and a water inlet pipe 94. The arc tube 1 91 and the arc tube 2 92 are respectively arranged on the front and rear sides of the inner wall of the arc plate 8, and the front and rear ends of the connecting block 81 are fixedly connected to the opposite sides of the arc tube 1 91 and the arc tube 2 92. A plurality of nozzles 93 are fixedly connected to the inner sides of the arc tube 1 91 and the arc tube 2 92 in a matrix. The surface of the workpiece can be quickly cleaned by spraying water simultaneously with a plurality of nozzles 93. The outer wall of the water inlet pipe 94 is connected to the arc tube 1 91 and the arc tube 2 92. Plate 8 passes through the left and right ends of the right fixed plate 10 and the column 11 and is fixedly connected therebetween; a control valve 95 is movably connected to the outer wall of the water inlet pipe 94 near the column 11; a flange 96 is fixedly connected to the outer wall of the right end of the water inlet pipe 94; arc tube 1 91 and arc tube 2 92 are fixedly connected to the opposite sides of the water inlet pipe 94 near the water inlet pipe 94 with mounting pipe 97; connecting sleeves 941 are fixedly connected to the front and rear sides of the water inlet pipe 94 respectively; the outer wall of the connecting sleeve 941 is fixedly connected to the inner wall of the mounting pipe 97; arc tube 1 91, arc tube 2 92, nozzle 93, water inlet pipe 94, connecting sleeve 941 and mounting pipe 97 are interconnected.

[0029] The working principle of this workpiece surface cleaning device is described in detail below.

[0030] like Figure 1-5As shown, when cleaning the workpiece, first, the stepper motor 31 and the servo motor 5 are electrically connected to the control panel 12, and the device is connected to an external power supply. According to the size of the workpiece, the rear mounting plate 4 is slid forward or backward along the inside of the slide groove 210 through the slider 61 in the U-shaped support plate 6, so that the front and rear ends of the workpiece are respectively placed on the anti-slip pads 78 in the front and rear U-shaped clamping plates 71 for positioning, and then the two knobs 74 are rotated to drive the screw rod 73 to rotate downward along the inside of the internal threaded tube 72, thereby driving the pressing plate 76 to move to the upper surface of the workpiece, so that the anti-slip strip 77 is pressed and fitted to the surface of the workpiece, thereby completing the clamping and fixing of the workpiece, and then the control valve 95 is opened to allow water to enter the arc tube 1 91 and the arc tube 2 92 through the water inlet pipe 94 respectively. The water is then sprayed out through the multiple nozzles 93 on the arc tube 1 91 and the arc tube 2 92, and the stepper motor 31 model 2HSS7 is started by operating the control panel 12, so that the output shaft of the stepper motor 31 drives the lead screw 32 to rotate, so that the threaded sleeve 34 on the lead screw 32 drives the front U-shaped support plate 6 to move, so that the workpiece on the clamping assembly 7 is moved forward and backward toward the inside of the arc plate 8. At the same time, the control panel 12 is controlled to start the servo motor 5 model 130ST-M10015, and the output shaft of the servo motor 5 drives the clamping assembly 7 to rotate through the rotating column 51, so that the workpiece is driven to rotate continuously, so that the sprayed water cleans the surface of the clamped workpiece in all directions. After the cleaning is completed, the workpiece is taken out and the clamped place is cleaned again.

[0031] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A workpiece surface cleaning device, comprising a cleaning table (1), characterized in that: A fixing box (2) is fixedly connected to the middle side of the top of the cleaning table (1); a displacement mechanism (3) is arranged at the front end of the fixing box (2); and the rear side of the outer wall of the displacement mechanism (3) penetrates to the inner rear side of the fixing box (2); mounting plates (4) are arranged at the front and rear sides of the top of the fixing box (2), respectively; a servo motor (5) is arranged at the upper side of the front end of the front mounting plate (4); the bottoms of the two mounting plates (4) are fixedly connected to U-shaped supporting plates (6); the opposite surfaces of the two U-shaped supporting plates (6) in the vertical direction are arranged at the left and right sides of the outer wall of the fixing box (2); and the two U-shaped supporting plates (6) are arranged at the left and right sides of the outer wall of the fixing box (2). The upper sides of the opposite faces of the mounting plate (4) are provided with clamping assemblies (7); the left and right ends of the middle side of the top of the cleaning table (1) are fixedly connected with columns (11) respectively; the tops of the opposite faces of the two columns (11) are fixedly connected with fixing plates (10); the opposite faces of the two fixing plates (10) are fixedly connected with arc-shaped plates (8); a cleaning mechanism (9) is provided inside the arc-shaped plates (8); the fixing box (2), the mounting plate (4) and the clamping assembly (7) are arranged on the inner side of the arc-shaped plates (8); and a control panel (12) is provided on the outer wall of the left column (11).

2. A workpiece surface cleaning device according to claim 1, characterized in that: The displacement mechanism (3) comprises a stepping motor (31), a lead screw (32), a bearing 1 (33) and a threaded sleeve (34); the output end of the stepping motor (31) is fixedly connected to the front end of the lead screw (32); the rear end of the outer wall of the lead screw (32) penetrates to the inner rear side of the fixed box (2) and is rotatably connected to the front end of the bearing 1 (33); the outer wall of the lead screw (32) penetrates the front and rear ends of the middle part of the threaded sleeve (34) and is threadedly connected therebetween.

3. A workpiece surface cleaning device according to claim 2, characterized in that: The rear end of the bearing 1 (33) is fixedly connected to the inner rear end of the fixed box (2); the top of the threaded sleeve (34) is fixedly connected to the middle side of the bottom of the horizontal surface of the front U-shaped support plate (6); the two U-shaped support plates (6) are fixedly connected to the opposite surfaces in the vertical direction with sliders (61); the left and right sides of the outer wall of the fixed box (2) are respectively fixedly connected to the limit plates (21); the ends of the two limit plates (21) that are away from each other are each provided with a slide groove (210); the outer wall of the slider (61) is slidably connected to the inner wall of the slide groove (210).

4. A workpiece surface cleaning device according to claim 3, characterized in that: The output shaft of the servo motor (5) is fixedly connected to a rotating column (51), and the outer wall of the rotating column (51) passes through the left and right ends of the front mounting plate (4).

5. A workpiece surface cleaning device according to claim 1, characterized in that: The clamping assembly (7) comprises a U-shaped clamping plate (71), an internally threaded tube (72), a screw (73), a knob (74), a second bearing (75) and a second bearing (75); the bottom of the internally threaded tube (72) is fixedly connected to the top of the upper lateral surface of the U-shaped clamping plate (71); the bottom of the outer wall of the screw (73) passes through the internally threaded tube (72) to the inside of the clamping assembly (7) and is threadedly connected therebetween; the knob (74) is fixedly connected to the top of the screw (73); the inner wall of the second bearing (75) is rotatably connected to the bottom of the outer wall of the screw (73); the bottom of the second bearing (75) is fixedly connected to the top of a pressure plate (76); a plurality of anti-slip strips (77) are fixedly connected to the bottom of the pressure plate (76) in an equidistant array; and an anti-slip pad (78) is provided at the top of the lateral surface of the lower U-shaped clamping plate (71).

6. A workpiece surface cleaning device according to claim 5, characterized in that: The front end of the U-shaped clamping plate (71) on the front side is fixedly connected to the rear end of the rotating column (51), and the rear end of the U-shaped clamping plate (71) on the rear side is rotatably connected to a rotating shaft, and the rear end of the rotating shaft is fixedly connected to the upper side of the front end of the rear mounting plate (4).

7. A workpiece surface cleaning device according to claim 1, characterized in that: A connection block (81) is fixedly connected to the top of the inner wall of the arc plate (8); the cleaning mechanism (9) comprises an arc tube 1 (91), an arc tube 2 (92) and a water inlet pipe (94); the arc tube 1 (91) and the arc tube 2 (92) are respectively arranged on the front and rear sides of the inner wall of the arc plate (8); the front and rear ends of the connection block (81) are fixedly connected to the opposite surfaces of the arc tube 1 (91) and the arc tube 2 (92); a plurality of nozzles (93) are fixedly connected to the inner sides of the arc tube 1 (91) and the arc tube 2 (92) in an equidistant array; the outer wall of the water inlet pipe (94) passes through the right fixed plate (10) and the left and right ends of the column (11) through the arc plate (8) and is fixedly connected therebetween; a control valve (95) is movably connected to the outer wall of the water inlet pipe (94) on the side close to the column (11); and a flange (96) is fixedly connected to the outer wall of the right end of the water inlet pipe (94).

8. A workpiece surface cleaning device according to claim 7, characterized in that: The opposite surfaces of the arc-shaped tube 1 (91) and the arc-shaped tube 2 (92) close to the water inlet pipe (94) are fixedly connected to the mounting pipe (97); the front and rear sides of the water inlet pipe (94) are respectively fixedly connected to the connecting sleeve (941); the outer wall of the connecting sleeve (941) is fixedly connected to the inner wall of the mounting pipe (97); the arc-shaped tube 1 (91), the arc-shaped tube 2 (92), the nozzle (93), the water inlet pipe (94), the connecting sleeve (941) and the mounting pipe (97) are interconnected.

Images