Water type switching cleaning device capable of swinging

Abstract

The utility model relates to the technical field of intelligent closestools in bathroom accessories, and provides a swingable water type switching cleaning device which comprises a spray rod body, a spray head mechanism and a driving unit, and the cleaning device is provided with a water conveying pipe; the spray head mechanism comprises an inner core assembly, the inner core assembly is communicated with the water conveying pipe, and the inner core assembly comprises at least two nozzles with different water types; the driving unit drives the inner core assembly to rotate. On the basis, different requirements of different users on the water spray collecting and dispersing degree, the cleaning area and the like can be met.

Description

Technical Field

[0001] The present application relates to the field of intelligent toilets in bathrooms, and in particular to a swingable water type switching cleaning device. Background Art

[0002] As people's living standards improve, smart toilets are becoming more and more popular in people's lives. At present, some smart toilets have the function of cleaning the body, which includes at least the following aspects: first, it can clean the buttocks and thoroughly clean the dirt, effectively reducing the anorectal diseases of the user population; second, it can clean the lower body of women, reduce bacterial infection, and greatly reduce the incidence of gynecological diseases and anorectal diseases; in addition, the cleaning water flow of the smart toilet can also play a massage function, and the water potential of different intensities repeatedly acts on the cleaning area, which can promote blood circulation and prevent related diseases, especially for constipation patients, it has a laxative effect. Therefore, the use requirements of smart toilets for different user groups are often different.

[0003] At present, the functions of smart toilets are often relatively single and cannot meet the needs of various groups of people or in different situations. For example, the cleaning function usually directly discharges water from the nozzle. Various manufacturers are equipped with electromagnetic pumps to change the intensity of the water splash when the water is discharged, but it is impossible to achieve larger horizontal cleaning and larger cleaning areas, and the multi-dimensional massage function is even more impossible. These are the deficiencies of smart toilet functions and cannot bring users a more enjoyable experience. Utility Model Content

[0004] In order to meet the needs of different users or in different situations for smart toilet cleaning, the present application provides a swingable water type switching cleaning device.

[0005] The present application provides a swingable water type switching cleaning device, which adopts the following technical solution:

[0006] A swingable water type switching cleaning device comprises a spray rod body, a nozzle mechanism and a driving unit, wherein the cleaning device is provided with a water supply pipe; the nozzle mechanism comprises an inner core component, the inner core component is connected to the water supply pipe, and the inner core component comprises at least two nozzles with different water types; when the cleaning device is in a first working state, the driving unit can drive the inner core component to rotate a first preset angle to switch the water type; when the cleaning device is in a second working state, the driving unit can drive the inner core component to swing back and forth within a second preset angle range.

[0007] By adopting the above technical solution, different nozzles correspond to different water types. When the user uses it, the inner core assembly is rotated to one of the nozzles at the water spraying position through the forward or reverse rotation of the driving unit, so that the corresponding water type can be used for cleaning, making the water type of the cleaning device diversified; when the driving unit drives the inner core assembly to swing back and forth within the second preset angle range, horizontal cleaning is achieved, the cleaning area can be expanded, and a certain massage effect can be achieved.

[0008] Optionally, the nozzle mechanism further includes a nozzle shell, the inner core assembly is rotatably connected in the nozzle shell, the nozzle shell is provided with a water spray hole, and during operation, one of the nozzles is connected to the water spray hole.

[0009] By adopting the above technical solution, when it is needed, the nozzle corresponding to the required water type is rotated to be connected to the water spray hole, so that different water types can be switched according to the user's own needs; when the nozzle housing and the nozzle rotate back and forth synchronously, the cleaning area can be increased.

[0010] Optionally, the nozzle mechanism further comprises a sealing cover, the sealing cover is provided with a clearance hole, the clearance hole is connected to the water pipe, the sealing cover is installed in the nozzle shell, and the inner core component is located between the sealing cover and the nozzle shell.

[0011] By adopting the above technical solution, water enters between the sealing cover and the nozzle shell from the clearance hole, then enters the inner core component, and then sprays out toward the water spray hole to form a cleaning water column.

[0012] Optionally, the inner core assembly also includes a sealing ring, which is installed on the nozzle, and the side of the sealing ring facing away from the nozzle abuts against the nozzle shell; when the cleaning device is in the second working state, the inner core assembly can be stationary relative to the nozzle shell under the friction force of the sealing ring, and when the cleaning device is in the first working state, the inner core assembly can overcome the friction force and rotate relative to the nozzle shell.

[0013] Optionally, the nozzle shell is provided with a limiting groove, the spray rod body is connected to a limiting rib, and the width of the limiting groove along the circumference of the nozzle shell is greater than the width of the limiting rib; the driving unit drives the inner core assembly to drive the nozzle shell to rotate, and when the limiting rib abuts against one side of the limiting groove, the nozzle shell is stationary relative to the spray rod body.

[0014] By adopting the above technical solution, the driving unit drives the inner core assembly to rotate. Due to the friction between the sealing ring and the nozzle shell, the sealing ring drives the nozzle shell and the inner core assembly to rotate synchronously until the limiting groove of the nozzle shell abuts against the limiting rib. The nozzle shell is limited, so that the nozzle shell is stationary relative to the spray rod body. The inner core assembly overcomes the friction between the sealing ring and the nozzle shell and continues to rotate, and stops when the next nozzle is connected to the water spray hole. At this time, the driving unit drives the inner core assembly and drives the nozzle shell to rotate in the opposite direction to the water spraying point, thereby completing the switching of the nozzle. Nozzles of different water types can be switched according to the above steps.

[0015] Optionally, a transmission mechanism is further included, wherein the transmission mechanism is connected to the driving unit and the inner core component, and the driving unit drives the transmission mechanism to drive the inner core component to rotate.

[0016] Optionally, the transmission mechanism is a universal joint transmission mechanism, or the transmission mechanism is a spiral flexible shaft, and the axis of the spiral flexible shaft is bendable.

[0017] Optionally, the transmission mechanism is connected to a first rib, and the spray rod body is connected to a second rib, and when the first rib abuts against the second rib, the drive unit is in an initial position.

[0018] Optionally, the inner core assembly further includes a front cover and a rear cover, the nozzle is installed between the front cover and the rear cover, the front cover is provided with a water inlet hole, and the water inlet hole is connected to the water pipe.

[0019] By adopting the above technical solution, water enters the nozzle housing, enters the interior of the inner core component through the water inlet hole, and is sprayed out from the nozzle aimed at the water spray hole.

[0020] Optionally, it also includes a main body shell, which is sleeved on the spray rod body and the nozzle mechanism, and the nozzle mechanism is rotatably connected to the main body shell, and the main body shell is provided with a water hole; when working, the water hole and the water spray hole are connected to the nozzle.

[0021] By adopting the above technical solution, the main body shell protects the internal components.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. Different nozzles correspond to different water types. When the user uses it, the inner core component is rotated to one of the nozzles at the water spraying position through the forward or reverse rotation of the driving unit, so as to use the corresponding water type for cleaning, so that the water type of the cleaning device is diversified; when the driving unit drives the inner core component to swing back and forth within the second preset angle range, horizontal cleaning is achieved, which can expand the cleaning area and have a certain massage effect;

[0024] 2. When it is needed, rotate the nozzle corresponding to the required water type until it is connected to the water spray hole, and you can switch different water types according to your own needs; when the nozzle housing and the nozzle rotate synchronously, the cleaning area can be increased;

[0025] 3. The driving unit drives the inner core assembly to rotate. Due to the friction between the sealing ring and the nozzle shell, the sealing ring drives the nozzle shell and the inner core assembly to rotate synchronously until the limiting groove of the nozzle shell abuts against the limiting rib. The nozzle shell is limited, so that the nozzle shell is stationary relative to the spray rod body. The inner core assembly continues to overcome the friction between the sealing ring and the nozzle shell and continues to rotate. It stops when the next nozzle is connected to the water spray hole. At this time, the driving unit drives the inner core assembly and drives the nozzle shell to rotate in the opposite direction to the water spraying point, completing the switching of the nozzle. Nozzles of different water types can be switched according to the above steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a cross-sectional schematic diagram of a swingable water type switching cleaning device according to an embodiment of the present application;

[0027] Figure 2 is an exploded schematic diagram of a swingable water type switching cleaning device according to an embodiment of the present application;

[0028] Figure 3 ABC are schematic diagrams of the structure of the water column spraying direction when the limiting groove and the limiting rib are in different positions in the swingable water type switching cleaning device of the embodiment of the present application;

[0029] Figure 4 2 is a cross-sectional schematic diagram of the coordination of the nozzle, the nozzle housing and the main body housing in different states during the process of switching from the first nozzle to the second nozzle in the swingable water type switching cleaning device according to the embodiment of the present application;

[0030] Figure 5 It is a cross-sectional schematic diagram of a universal joint transmission mechanism in a swingable water type switching cleaning device according to an embodiment of the present application;

[0031] Figure 6 It is an exploded schematic diagram of a transmission mechanism of a swingable water type switching cleaning device in an embodiment of the present application being a spiral flexible shaft;

[0032] Figure 7 It is a cross-sectional schematic diagram of a swingable water type switching cleaning device in an embodiment of the present application in which the transmission mechanism is a spiral flexible shaft;

[0033] Figure 8 It is a partial schematic diagram of the cooperation between the limit shaft and the spray rod body in the swingable water type switching cleaning device according to the embodiment of the present application;

[0034] Fig. 9 It is a schematic diagram of the structure of the swingable water type switching cleaning device in the embodiment of the present application when the main body shell is not extended;

[0035] Fig.10 It is a schematic diagram of the structure of the swingable water type switching cleaning device in the embodiment of the present application when the main body shell is extended.

[0036] Figure numerals: 1. spray rod body; 2. spray head mechanism; 21. inner core assembly; 211. nozzle; 212. sealing ring; 213. front cover; 214. rear cover; 215. fixed shaft; 22. spray head housing; 23. sealing cover; 3. driving unit (first motor); 4. fixing seat; 5. water inlet joint; 6. water pipe; 7. water spray hole; 8. clearance hole; 9. limiting groove; 10. limiting rib; 11. water inlet hole; 12. transmission mechanism; 13. limiting shaft; 14. main housing; 15. water through hole; 16. second motor; 17. guide rail; 18. first convex rib; 19. second convex rib; 20. Y-ring. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-9 This application is described in further detail.

[0038] The present application discloses a swingable water type switching cleaning device. Figure 1 The swingable water type switching cleaning device includes a spray rod body 1, a nozzle mechanism 2 and a driving unit 3. The nozzle mechanism 2 and the driving unit 3 are respectively connected to the two ends of the spray rod body 1. In this embodiment, the driving unit 3 is a first motor. One end of the spray rod body 1 is connected to a fixing seat 4, which is screwed to the spray rod body 1 by screws, and the first motor is screwed to the fixing seat 4 by screws. The fixing seat 4 is connected to a water inlet joint 5, which is connected to a reversing valve (not shown) of the smart cover plate to realize water supply to the cleaning device. The reversing valve can also be integrated on the fixing seat 4, and the structure is compact.

[0039] The cleaning device is provided with a water pipe 6, which can be provided inside the spray rod body 1, or a mounting groove can be provided outside the spray rod body 1 for placing the water pipe 6, and water is supplied to the nozzle mechanism 2 through the water pipe 6, and the nozzle mechanism 2 forms a cleaning water column after spraying water to clean the user. The nozzle mechanism 2 includes an inner core component 21, which is connected to the water pipe 6, and the inner core component 21 includes at least two nozzles 211 with different water types. In this embodiment, four nozzles 211 are provided, and the four nozzles 211 are arranged at intervals along the circumference of the inner core component 21. The water types sprayed by the four nozzles 211 are respectively a sheet water type, a bubble water type, a bulb water type, and a columnar water type. In other embodiments, the number of nozzles and the shape of the water type are not limited here; when the cleaning device is in the first working state, the driving unit 3 can drive the inner core component 21 to rotate a first preset angle to switch the water type, so that the nozzles 211 of different water types are converted. In the second working state, the cleaning device drives the inner core component 21 to swing back and forth within a second preset angle range through the driving unit 3 to achieve lateral cleaning and increase the cleaning area. It should be noted here that the swing refers to the repeated forward and reverse rotation of the nozzle assembly around the central axis. In this embodiment, the driving unit 3 that drives the inner core component 21 to switch the water type and achieve reciprocating swing is the same motor, and in other embodiments, it can also be driven by different motors.

[0040] Reference Figure 2 In some embodiments, the nozzle mechanism 2 further includes a nozzle housing 22, the inner core assembly 21 is rotatably connected to the nozzle housing 22, and the nozzle housing 22 is provided with a water spray hole 7. When working, one of the nozzles 211 is connected to the water spray hole 7. When the user uses it, the driving unit 3 drives the inner core assembly 21 to rotate, and one of the nozzles 211 in the inner core assembly 21 is aligned with the water spray hole 7. At this time, the water type of the nozzle 211 is the water outlet type.

[0041] In some embodiments, the nozzle mechanism 2 further includes a sealing cover 23, the sealing cover 23 is provided with a clearance hole 8, the clearance hole 8 is connected to the water pipe 6, and the sealing cover 23 is installed in the nozzle housing 22 (matching Figure 1 ), the inner core component 21 is located between the sealing cover 23 and the nozzle shell 22. Water enters between the nozzle shell 22 and the sealing cover 23 from the water pipe 6 through the clearance hole 8, and then enters into the inner core component 21.

[0042] Continue to refer to Figure 2In some embodiments, the inner core assembly 21 further includes a sealing ring 212, which is mounted on the nozzle 211. In this embodiment, one sealing ring 212 corresponds to one nozzle 211, and the side of the sealing ring 212 facing away from the nozzle 211 abuts against the nozzle housing 22. In this embodiment, the sealing ring 212 and the nozzle housing 22 have an interference fit. When the cleaning device is in the second working state, the driving unit 3 drives the inner core assembly 21 to rotate, and the inner core assembly 21 can drive the nozzle housing 22 to rotate together through the friction between the sealing ring 212 and the nozzle housing 22. When the cleaning device is in the first working state, the inner core assembly 21 can overcome the friction and rotate relative to the nozzle housing 22. Specifically, the nozzle housing 22 is provided with a limiting groove 9, and the spray rod body 1 is integrally connected with the limiting rib 10. The width of the limiting groove 9 along the circumferential direction of the nozzle housing 22 is greater than the width of the limiting rib 10. The width of the limiting groove 9 limits the range of repeated rotation of the nozzle housing 22. The width of the limiting groove 9 can be set according to actual needs to limit the rotation range of the nozzle housing 22, thereby limiting the area of ​​water spraying. When the limiting rib 10 abuts against one side of the limiting groove 9, that is, when the limiting rib 10 abuts against a side wall of the nozzle housing 22 corresponding to the limiting groove 9, the nozzle housing 22 is stationary relative to the spray rod body 1, that is, the nozzle housing 22 no longer rotates.

[0043] Reference Figure 3 and Figure 4 When the user needs to switch the water type, the driving unit 3 drives the inner core component 21 to drive the nozzle shell 22 to rotate. When the nozzle shell 22 rotates to the limit rib 10 against the side of the limit groove 9, the nozzle shell 22 is limited and cannot rotate. The driving unit 3 drives the inner core component 21 to overcome the friction between the sealing ring 212 and the nozzle shell 22 to continue to rotate, so that the next nozzle 211 stops when it is switched to the water spray hole 7 of the nozzle shell 22. The driving unit 3 reverses and drives the inner core component 21 to drive the nozzle shell 22 to rotate in the opposite direction. After rotating to the set position, it stops. At this time, the central axis of the water spray hole 7 is on the same straight line as the central axis of the nozzle 211, and the switching of the nozzle 211 is completed. The switching steps of the remaining nozzles 211 are the same as above. In the process of the nozzle assembly spraying the cleaning water column, when the driving unit 3 repeatedly drives the inner core component 21 to drive the nozzle shell 22 to rotate repeatedly within the limit groove 9 within a certain angle range, a lateral swing of the water column is formed, which increases the cleaning area and has a certain massage effect. By controlling the forward and reverse speed of the driving unit 3, the speed of the lateral swing of the water pattern can be controlled. The driving unit 3 can also be controlled to pause intermittently during the forward and reverse rotation process to obtain different lateral swing effects. In addition, the telescopic motor can be superimposed to drive the cleaning spray rod to move forward and backward, thereby obtaining a multi-dimensional water discharge effect.

[0044] Refer again Figure 2In some embodiments, the inner core assembly 21 further includes a front cover 213 and a rear cover 214, and the nozzle 211 is installed between the front cover 213 and the rear cover 214. Figure 5 In this embodiment, the inner core assembly 21 further includes a fixed shaft 215, the two ends of which penetrate the front cover 213 and the rear cover 214 respectively, so as to strengthen the fixation of the front cover 213 and the rear cover 214. The front cover 213 is provided with a water inlet hole 11. When water enters the sealing cover 23 and the nozzle housing 22, it enters the inner core assembly 21 from the water inlet hole 11. In this embodiment, the rear cover 214 passes through the sealing cover 23, and the rear cover 214 is sleeved with a Y-shaped ring 20, and the outer side of the Y-shaped ring 20 abuts against the sealing cover 23, so that the rear cover 214 and the sealing cover 23 form a sealing fit.

[0045] Reference Figure 5 In some embodiments, the swingable water type switching cleaning device further includes a transmission mechanism 12, which is connected to the drive unit 3 and the inner core assembly 21, and the drive unit 3 drives the transmission mechanism 12 to drive the inner core assembly 21 to rotate. The transmission mechanism 12 can be conveniently connected to the inner core assembly 21, so that the drive unit 3 can conveniently drive the inner core assembly 21 to rotate. In some embodiments, the transmission mechanism 12 is a universal joint transmission mechanism.

[0046] Reference Figure 6 In some embodiments, the transmission mechanism 12 can be replaced by a spiral flexible shaft, and the axis of the spiral flexible shaft can be bent. The spiral flexible shaft has a spiral shape, so that it has sufficient flexibility on the axis to be able to bend, and at the same time has sufficient rigidity in the circumferential direction to transmit the torque of the drive unit 3, thereby ensuring smooth and accurate power transmission. The spiral flexible shaft can be an injection-molded plastic part, or a metal part made of a spiral spring.

[0047] Reference Figure 7 The swingable water type switching cleaning device also includes a limit shaft 13, which is rotatably connected to the spray rod body 1, and the two ends of the limit shaft 13 are respectively connected to the transmission mechanism 12 and the inner core component 21. In this embodiment, the limit shaft 13 is connected to the spray rod body 1 through a pin, and the transmission mechanism 12 drives the limit shaft 13 to drive the inner core component 21 to rotate.

[0048] Reference Figure 8In some embodiments, the limiting shaft 13 is integrally connected with a first convex rib 18, and the spray rod body 1 is integrally connected with a second convex rib 19. When the first convex rib 18 abuts against the second convex rib 19, the drive unit 3 is in the initial position. Through the cooperation of the first convex rib 18 and the second convex rib 19, the nozzle can be quickly positioned to the initial position after the cleaning device is installed. In other embodiments, the limiting shaft 13 may not be provided, and the first convex rib 18 is directly integrally connected with the transmission mechanism 12, and the spray rod body 1 is integrally connected with the second convex rib 19. When the first convex rib 18 abuts against the second convex rib 19, the drive unit 3 is in the initial position.

[0049] Reference Fig. 9 and Fig.10 The swingable water type switching cleaning device also includes a main body shell 14, which is sleeved on the spray rod body 1 and the nozzle mechanism 2, and the nozzle mechanism 2 is rotatably connected to the main body shell 14. In this embodiment, the main body shell 14 is fixed to the spray rod body 1 by screws. The main body shell 14 is provided with a water hole 15, and the water hole 15 is a waist hole structure, so that the formed water column can be sprayed out through the water hole 15 during the reciprocating swing process. When working, the water hole 15, the water spray hole 7 and the nozzle 211 are connected, and cooperate with each other. Figure 4 When the central axis of the water hole 15, the central axis of the water spray hole 7 and the central axis of the nozzle 211 are in the same straight line, it is in the initial state. The driving unit 3 drives the inner core component 21 to drive the nozzle shell 22 to rotate back and forth, so that the nozzle 211 and the nozzle shell 22 form cleaning water columns of different angles between the water hole 15, thereby increasing the cleaning area.

[0050] Continue to refer to Fig. 9 and Fig.10 In this embodiment, the swingable water type switching cleaning device further includes a second motor 16 and a guide rail 17. The second motor 16 drives the spray rod body 1 to move along the guide rail 17. In this embodiment, the spray rod body 1 drives the main housing 14 to move along the guide rail 17. The user can drive the spray rod body 1 to move closer to or away from the user through the second motor 16 according to the user's own situation, so as to better meet the user's needs.

[0051] The implementation principle of a swingable water type switching cleaning device in an embodiment of the present application is as follows: different nozzles 211 correspond to different water types, and the concentration, strength, etc. of water sprayed out by different water types are different. When the user uses it, the inner core component 21 is rotated to one of the nozzles 211 at the water spraying position through the forward or reverse rotation of the driving unit 3, so that the corresponding water type can be used for cleaning, thereby making the water type of the cleaning device diversified; when the driving unit 3 rotates back and forth in the forward and reverse directions, the nozzle 211 swings within a preset angle range to spray water, thereby realizing lateral cleaning, which can expand the cleaning area and has a certain massage effect.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A swingable water type switching cleaning device, characterized in that: The cleaning device comprises a spray rod body, a nozzle mechanism and a driving unit, wherein the cleaning device is provided with a water pipe; the nozzle mechanism comprises an inner core component, the inner core component is connected to the water pipe, and the inner core component comprises at least two nozzles with different water types; when the cleaning device is in a first working state, the driving unit can drive the inner core component to rotate a first preset angle to switch the water type; when the cleaning device is in a second working state, the driving unit can drive the inner core component to swing back and forth within a second preset angle range.

2. The swingable water type switching cleaning device according to claim 1, characterized in that: The nozzle mechanism also includes a nozzle shell, the inner core component is rotatably connected in the nozzle shell, and the nozzle shell is provided with a water spray hole. When working, one of the nozzles is connected to the water spray hole.

3. The swingable water type switching cleaning device according to claim 2, characterized in that: The nozzle mechanism also includes a sealing cover, which is provided with a clearance hole, the clearance hole is connected to the water pipe, the sealing cover is installed in the nozzle shell, and the inner core component is located between the sealing cover and the nozzle shell.

4. The swingable water type switching cleaning device according to claim 2, characterized in that: The inner core assembly further comprises a sealing ring, which is mounted on the nozzle, and a side of the sealing ring facing away from the nozzle abuts against the nozzle housing; When the cleaning device is in the second working state, the inner core component can be stationary relative to the nozzle shell under the action of the friction force of the sealing ring. When the cleaning device is in the first working state, the inner core component can overcome the friction force and rotate relative to the nozzle shell.

5. The swingable water type switching cleaning device according to claim 4, characterized in that: The nozzle shell is provided with a limiting groove, the spray rod body is connected with a limiting rib, and the width of the limiting groove along the circumference of the nozzle shell is greater than the width of the limiting rib; the driving unit drives the inner core assembly to drive the nozzle shell to rotate, and when the limiting rib abuts against one side of the limiting groove, the nozzle shell is stationary relative to the spray rod body.

6. The swingable water type switching cleaning device according to claim 1, characterized in that: It also includes a transmission mechanism, which is connected to the driving unit and the inner core component, and the driving unit drives the transmission mechanism to drive the inner core component to rotate.

7. The swingable water type switching cleaning device according to claim 6, characterized in that: The transmission mechanism is a universal joint transmission mechanism, or the transmission mechanism is a spiral flexible shaft, and the axis of the spiral flexible shaft is bendable.

8. The swingable water type switching cleaning device according to claim 6, characterized in that: The transmission mechanism is connected with a first convex rib, and the spray rod body is connected with a second convex rib. When the first convex rib abuts against the second convex rib, the driving unit is in an initial position.

9. The swingable water type switching cleaning device according to claim 1, characterized in that: The inner core component further comprises a front cover and a rear cover, the nozzle is installed between the front cover and the rear cover, the front cover is provided with a water inlet hole, and the water inlet hole is communicated with the water delivery pipe.

10. The swingable water type switching cleaning device according to claim 2, characterized in that: It also includes a main body shell, which is sleeved on the spray rod body and the spray head mechanism, and the spray head mechanism is rotatably connected to the main body shell. The main body shell is provided with a water hole; when working, the water hole and the water spray hole are connected with the nozzle.

Images