CN219785193U

CN219785193U - Self-rotating cleaning spray head

Info

Publication number: CN219785193U
Application number: CN202321062203.4U
Authority: CN
Inventors: 陈薇; 乔胜超; 张谦; 单国峰; 石津; 石一军; 高凤; 姜琳
Original assignee: Xinchang Xinhecheng Vitamin Co ltd; Zhejiang Weierxin Animal Nutrition And Health Products Co ltd; Shandong Nhu Vitamin Co ltd; Zhejiang NHU Co Ltd
Current assignee: Xinchang Xinhecheng Vitamin Co ltd; Zhejiang Weierxin Animal Nutrition And Health Products Co ltd; Shandong Nhu Vitamin Co ltd; Zhejiang NHU Co Ltd
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-10-03
Anticipated expiration: 2033-04-28

Abstract

The utility model relates to a spin type cleaning spray head which comprises a shell and a water inlet mechanism, wherein a water inlet is formed in the top of the shell, water outlets are formed in the side part of the shell, a plurality of water outlets are formed in the periphery of the shell, the axis of each water outlet is obliquely arranged relative to the axis of the shell, the water inlet mechanism is arranged at the water inlet of the shell, the shell can rotate relative to the water inlet mechanism, and when the cleaning spray head is in a working state, liquid enters the shell through the water inlet mechanism and is sprayed out from the water outlets to drive the shell to rotate. According to the utility model, the shell is rotatably connected with the water inlet mechanism, and the inclined water outlet is formed in the shell, so that the shell is driven to rotate by the reaction force generated when liquid is sprayed out from the water outlet at a high speed, the self-rotation and self-sealing of the cleaning nozzle in the working process are realized, the cleaning effect is improved, the sealing performance is good, the water leakage phenomenon can be effectively prevented, the structure is simple, the assembly is convenient, the production cost is reduced, the self-adaptation capability is strong, and the practicability is good.

Description

Self-rotating cleaning spray head

Technical Field

The utility model belongs to the technical field of cleaning equipment, and particularly relates to a spin type cleaning spray head.

Background

In the industries of medicine production, food processing and the like, a large number of automatic cleaning equipment systems are required to clean production devices. The cleaning spray head is a key part in an automatic cleaning system, and the cleaning work of the production device can be realized through the cleaning liquid sprayed by the cleaning spray head, so that the design quality of the cleaning spray head determines the cleaning quality and the consumption of the cleaning liquid. The common cleaning spray heads are various in types and mainly comprise fixed spray heads, rotary spray heads and the like, and the fixed spray heads can spray cleaning liquid towards one or more directions, but the problem that partial areas cannot be cleaned exists, the cleaning dead area is large, and the cleaning effect is poor; the rotary spray head is characterized in that the spray head can automatically rotate around the axis of the spray head when spraying cleaning liquid, the spray head has wide spray cleaning area range, but the structure is complex, the production and manufacturing process is complex, the cost is high, the sealing performance of the conventional rotary spray head is generally poor, the water leakage phenomenon is easy to occur in the rotary spray process, and the self-adaption capability is weak.

Disclosure of Invention

The utility model aims to provide a spin type cleaning spray head with a simple structure and a good sealing effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the self-rotating cleaning spray head comprises a shell, wherein a water inlet is formed in the top of the shell, water outlets are formed in the side parts of the shell, a plurality of water outlets are formed, the water outlets are distributed around the shell, and the axis of the water outlet is obliquely arranged relative to the axis of the shell;

the cleaning spray head also comprises a water inlet mechanism, wherein the water inlet mechanism is arranged at the water inlet of the shell, the shell can rotate relative to the water inlet mechanism, and when the cleaning spray head is in a working state, liquid enters the shell through the water inlet mechanism and is sprayed out from a plurality of water outlets to drive the shell to rotate.

Preferably, the plurality of water outlets are distributed in a ring shape with the axis of the shell as the center, and a plurality of circles are distributed along the axis direction of the shell.

Preferably, the shell comprises a top cover, a cylinder body and a bottom cover, wherein the top cover is connected to the top of the cylinder body, the bottom cover is connected to the bottom of the cylinder body, and the water outlets are formed in the side parts of the top cover, the cylinder body and the bottom cover.

Further preferably, the top cover, the cylinder body and the bottom cover are welded into a whole, so that the processing is convenient, and the manufacturing cost is low.

Further preferably, the included angle between the axis of the water outlet on the cylinder and the projection of the axis on the horizontal section of the cylinder is 15-45 degrees, and the included angle between the projection of the axis of the water outlet on the cylinder on the horizontal section of the cylinder and the line connecting the projection of the center of the water outlet on the cylinder on the horizontal section and the center of the cylinder on the horizontal section is 45-75 degrees; the inclination direction of the water outlet on the bottom cover is consistent with the inclination direction of the water outlet on the cylinder; the inclined direction of the water outlet on the top cover and the inclined direction of the water outlet on the cylinder body are in mirror symmetry with the horizontal section of the cylinder body.

Preferably, the water inlet mechanism comprises a water inlet pipe, one end of the water inlet pipe is positioned outside the shell, the other end of the water inlet pipe penetrates through the water inlet and stretches into the shell, the other end of the water inlet pipe is provided with a boss, and the boss is rotatably connected with the inner wall of the shell.

Further preferably, the upper surface of boss set up first annular groove, the inner wall of casing on set up the second annular groove, first annular groove, second annular groove's cross-section all be convex, and the position of both corresponds each other, first annular groove, second annular groove between be provided with first rolling element.

Still more preferably, the first rolling elements are spherical; the first rolling bodies are arranged in a plurality, and the first rolling bodies are distributed between the first annular groove and the second annular groove and are in rolling fit with the first annular groove and the second annular groove.

Further preferably, one end of the water inlet pipe is provided with external threads for connecting with a water pipe, two opposite sides of the outer peripheral surface of one end of the water inlet pipe are respectively provided with grooves, and the grooves are positioned below the external threads. When the wrench is used for installing or detaching the cleaning spray head, the grooves on two sides form a wrench clamping area, so that the cleaning spray head can be quickly installed and detached.

Further preferably, a sealing assembly is detachably arranged on the water inlet pipe outside the shell, and the sealing assembly is rotatably connected with the outer wall of the shell.

Still further preferably, the sealing assembly comprises a sealing ring, the sealing ring is sleeved on the water inlet pipe, a third annular groove is formed in the lower surface of the sealing ring, a fourth annular groove is formed in the outer wall of the shell, the sections of the third annular groove and the fourth annular groove are arc-shaped, the positions of the third annular groove and the fourth annular groove correspond to each other, and a second rolling body is arranged between the third annular groove and the fourth annular groove.

Still further preferably, the second rolling elements are spherical; the second rolling bodies are arranged in a plurality, are distributed between the third annular groove and the fourth annular groove and are in rolling fit with the third annular groove and the fourth annular groove.

Still further preferably, the other end of the water inlet pipe is provided with external threads, the sealing ring is provided with internal threads, and the sealing ring is connected with the water inlet pipe through threaded fit.

Still further preferably, the sealing assembly further comprises a positioning nut, the positioning nut is in threaded fit connection with the external thread at the other end of the water inlet pipe, and the positioning nut is propped against the sealing ring. The positioning nut is used for adjusting the gap between the sealing ring and the shell, so that smooth rotation of the shell can be ensured, and water leakage caused by overlarge gap can be prevented.

Still further preferably, the sealing assembly further comprises a fastening nut, the fastening nut is in threaded fit connection with the external thread at the other end of the water inlet pipe, and the fastening nut is abutted against the positioning nut. The fastening nut and the positioning nut form a double-nut structure, so that the displacement of the positioning nut can be avoided.

Still further preferably, the sealing ring is made of tetrafluoroethylene, and the tetrafluoroethylene has good wear resistance and small sliding friction coefficient.

Still further preferably, the lower surface of the sealing ring is provided with a sealing surface, the sealing surface is provided with a convex sealing part, the water inlet of the shell is provided with a matching surface, and the sealing part is propped against the matching surface.

Still further preferably, the sealing portion is annular, and the cross section of the sealing portion is trapezoidal.

Preferably, a through hole is formed in the bottom of the shell, and a sealing plug is detachably arranged at the through hole.

Further preferably, the through hole is provided with an internal thread, the top of the sealing plug is provided with an external thread, and the through hole is connected with the sealing plug through threaded fit.

Further preferably, the diameter of the through hole is larger than that of the boss, so that the water inlet mechanism is convenient to install.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

according to the utility model, the shell is rotatably connected with the water inlet mechanism, and the inclined water outlet is formed in the shell, so that the shell is driven to rotate by the reaction force generated when liquid is sprayed out from the water outlet at a high speed, the self-rotation and self-sealing of the cleaning nozzle in the working process are realized, the cleaning effect is improved, the sealing performance is good, the water leakage phenomenon can be effectively prevented, the structure is simple, the assembly is convenient, the production cost is reduced, the self-adaptation capability is strong, and the practicability is good.

Drawings

FIG. 1 is a schematic perspective view of a cleaning nozzle according to the present embodiment;

FIG. 2 is a schematic front view of the cleaning nozzle according to the present embodiment;

FIG. 3 is a schematic side view of the cleaning head according to the present embodiment;

FIG. 4 is a schematic cross-sectional view of A-A of FIG. 3;

FIG. 5 is an enlarged schematic view of a portion of FIG. 4 at B;

FIG. 6 is an enlarged schematic view of a portion of FIG. 4 at C;

FIG. 7 is a schematic cross-sectional view of D-D of FIG. 4;

fig. 8 is an enlarged partial schematic view at E in fig. 7.

In the above figures:

1. a housing; 101. a water inlet; 102. a water outlet; 103. a second annular groove; 104. a fourth annular groove; 105. a mating surface; 11. a top cover; 12. a cylinder; 13. a bottom cover; 130. a through hole; 14. a sealing plug; 2. a water inlet mechanism; 21. a water inlet pipe; 211. an external thread; 212. a groove; 22. a boss; 220. a first annular groove; 23. a seal assembly; 231. a seal ring; 2311. a third annular groove; 2312. sealing surfaces; 2313. a sealing part; 232. positioning a nut; 233. a fastening nut; 24. a first rolling element; 25. and a second rolling element.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The utility model provides a spin-type cleaning shower nozzle, as shown in fig. 1 to 3, includes casing 1, water inlet mechanism 2, and water inlet 101 has been seted up at the top of casing 1, and water outlet 102 has been seted up to the lateral part of casing 1, and water inlet mechanism 2 sets up in the water inlet 101 department of casing 1, and water inlet mechanism 2's one end stretches into to in the water inlet 101 of casing 1 promptly, and can rotate relatively between water inlet mechanism 2 and the casing 1.

The following details of each component and its connection relation are described in detail:

as shown in fig. 1 to 3, the housing 1 includes a top cover 11, a cylindrical body 12 and a bottom cover 13, the cylindrical body 12 is cylindrical, the top cover 11 is connected to the top of the cylindrical body 12, the top cover 11 is in a shape of a circular truncated cone, the bottom cover 13 is connected to the bottom of the cylindrical body 12, the bottom cover 13 is in a shape of an inverted circular truncated cone, and the top cover 11, the cylindrical body 12 and the bottom cover 13 are mutually communicated and coaxially arranged; the top cover 11, the cylinder 12 and the bottom cover 13 can be connected into a whole by adopting a welding process, so that the processing is convenient, and the manufacturing cost is low.

As shown in fig. 4, the water inlet 101 is formed at the center of the top of the housing 1, i.e., the water inlet 101 is formed at the center of the top cover 11. The water outlets 102 are arranged in a plurality, the water outlets 102 are uniformly distributed on the side wall of the shell 1 in a ring shape by taking the axis of the shell 1 as the center, a plurality of rings are uniformly distributed along the axis direction of the shell 1, and the axis of the water outlets 102 is obliquely arranged relative to the axis of the shell 1. Specifically: as shown in fig. 4, the top cover 11, the cylinder 12 and the side of the bottom cover 13 are provided with a plurality of water outlets 102; as shown in fig. 4 and fig. 6 to fig. 8, the water outlet 102 on the barrel 12 extends obliquely downward, the included angle between the axis of the water outlet 102 on the barrel 12 and the projection of the axis on the horizontal section of the barrel 12 is alpha, the value range of alpha is 15-45 degrees, the included angle between the projection of the axis of the water outlet 102 on the barrel 12 on the horizontal section of the barrel 12 and the connecting line of the projection of the center of the water outlet 102 on the barrel 12 on the horizontal section and the center of the barrel 12 on the horizontal section is theta, the value range of theta is 45-75 degrees, that is, the inclined angle of the water outlet 102 on the barrel 12 relative to the horizontal plane in the up-down direction is alpha, and the deflection angle of the water outlet 102 on the barrel 12 in the radial direction of the barrel 12 is theta; the inclination direction of the water outlet 102 positioned on the bottom cover 13 is consistent with the inclination direction of the water outlet 02 positioned on the cylinder 12; the direction of inclination of the water outlet 102 on the top cover 11 and the direction of inclination of the water outlet 102 on the barrel 12 are mirror symmetry with respect to the horizontal plane of the barrel 12, i.e. the water outlets 102 on the top cover 11 and the barrel 12 are mirror symmetry with respect to the horizontal plane. The cleaning liquid sprayed from the water outlet 102 on the cylinder 12 has a tangential component speed with the surface of the cylinder 12, and can generate tangential reaction force on the cylinder 12 to promote the shell 1 to rotate; the water outlet 102 which is positioned on the top cover 11 and extends obliquely upwards can increase the spraying area of the cleaning liquid and improve the cleaning effect; the water outlet 102 which is positioned on the bottom cover 13 and extends downwards in a tilting way can properly counteract the downward reaction force generated by the water outlet 102 positioned on the top cover 11 to the shell 1, thereby ensuring smoother rotation.

As shown in fig. 4, a through hole 130 is formed in the bottom of the housing 1, and a sealing plug 14 is detachably disposed in the through hole 130, specifically: the through hole 130 is arranged at the center of the bottom cover 13, and the diameter of the through hole 130 is larger than that of the water inlet mechanism 2, so that the water inlet mechanism 2 can be conveniently installed; the through hole 130 is internally provided with internal threads, i.e. the through hole 130 is a threaded hole, the top of the sealing plug 14 is provided with external threads, and the through hole 130 and the sealing plug 14 are connected by threaded fit, however, only one connection mode is given here, but the connection mode is not limited to the embodiment.

As shown in fig. 4, the water intake mechanism 2 includes a water intake pipe 21, a boss 22, and a seal assembly 23, the water intake pipe 21 extends from a water intake 101 of the housing 1 into the interior thereof, the boss 22 is provided on the water intake pipe 21 located inside the housing 1, the seal assembly 23 is provided on the water intake pipe 21 located outside the housing 1, and the boss 22, the seal assembly 23 are rotatably connected with the housing 1, respectively. Specifically:

as shown in fig. 4, the water inlet pipe 21 extends in the vertical direction, two ends of the water inlet pipe 21 are penetrated, one end of the water inlet pipe 21 is positioned outside the shell 1, and the other end of the water inlet pipe 21 passes through the water inlet 101 and extends into the shell 1, i.e. the water inlet pipe 21 is coaxially arranged with the shell 1, and cleaning liquid can flow into the water inlet pipe 21 from one end of the water inlet pipe 21 and flow into the shell 1 from the other end of the water inlet pipe 21; one end of the water inlet pipe 21 is provided with an external thread 211, and the water inlet pipe 21 can be connected with water inlet equipment such as a water pipe and the like through the external thread 211; grooves 212 are respectively formed in two opposite sides of the outer peripheral surface of one end of the water inlet pipe 21, the grooves 212 are located below the external threads 211, the grooves 212 are rectangular, and when the wrench is used for installing or detaching the cleaning nozzle, the grooves 212 on two sides form a wrench clamping area, so that the cleaning nozzle can be quickly installed and detached.

As shown in fig. 5, a boss 22 is provided at the other end of the water intake pipe 21, and the boss 22 is rotatably connected with the upper surface of the inner wall of the housing 1, specifically: the upper surface of the boss 22 is provided with a first annular groove 220, and the cross section of the first annular groove 220 is arc-shaped; the upper surface of the inner wall of the shell 1 is provided with a second annular groove 103, and the section of the second annular groove 103 is arc-shaped; the first annular groove 220 is coaxially arranged with the water inlet pipe 21, and the second annular groove 103 is coaxially arranged with the shell 1, namely, the positions of the first annular groove 220 and the second annular groove 103 correspond to each other; the first rolling bodies 24 are arranged between the first annular groove 220 and the second annular groove 103, the first rolling bodies 24 are spherical, the first rolling bodies 24 are arranged in a plurality, and the first rolling bodies 24 are distributed between the first annular groove 220 and the second annular groove 103 and are in rolling fit with the first annular groove and the second annular groove 103.

As shown in fig. 4 and 5, the sealing assembly 23 is detachably disposed on the water inlet pipe 21 located outside the casing 1, the sealing assembly 23 is rotatably connected with the upper surface of the outer wall of the casing 1, the sealing assembly 23 includes a sealing ring 231, a positioning nut 232 and a fastening nut 233, and the sealing ring 231, the positioning nut 232 and the fastening nut 233 are sequentially sleeved on the water inlet pipe 21 from bottom to top, specifically:

as shown in fig. 5, the water inlet pipe 21 at the water inlet 101 is provided with external threads, the sealing ring 231 is provided with internal threads, and the sealing ring 231 is connected with the water inlet pipe 21 through threaded fit; the sealing ring 231 is made of tetrafluoroethylene, and the tetrafluoroethylene has good wear resistance and small sliding friction coefficient; the lower surface of the sealing ring 231 is provided with a third annular groove 2311, the cross section of the third annular groove 2311 is arc-shaped, the upper surface of the outer wall of the shell 1 is provided with a fourth annular groove 104, the cross section of the fourth annular groove 104 is arc-shaped, the third annular groove 2311 and the sealing ring 231 are coaxially arranged, and the fourth annular groove 104 and the shell 1 are coaxially arranged, namely the positions of the third annular groove 2311 and the fourth annular groove 104 correspond to each other; the second rolling bodies 25 are arranged between the third annular groove 2311 and the fourth annular groove 104, the second rolling bodies 25 are spherical, the second rolling bodies 25 are arranged in a plurality, and the second rolling bodies 25 are distributed between the third annular groove 2311 and the fourth annular groove 104 and are in rolling fit with the third annular groove 2311 and the fourth annular groove 104.

As shown in fig. 5, the positioning nut 232 is in threaded fit connection with the external thread of the water inlet pipe 21 at the water inlet 101, and the positioning nut 232 is pressed against the sealing ring 231, and the positioning nut 232 is used for adjusting the gap between the sealing ring 231 and the housing 1, so that the housing 1 can be ensured to rotate smoothly, and the water leakage phenomenon caused by overlarge gap can be prevented. The fastening nut 233 is in threaded fit connection with the external thread of the water inlet pipe 21 at the water inlet 101, the fastening nut 233 is pressed against the positioning nut 232, the fastening nut 233 and the positioning nut 232 form a double-nut structure, and displacement of the positioning nut 232 can be avoided.

As shown in fig. 5, in order to improve the sealing performance, the lower surface of the sealing ring 231 is provided with an inclined sealing surface 2312 near the water inlet 101, the water inlet 101 of the shell 1 is provided with an inclined matching surface 105, and the inclination angles of the sealing surface 2312 and the matching surface 105 are consistent and both are annular; the sealing surface 2312 is provided with a convex sealing part 2313, and the sealing part 2313 is propped against the matching surface 105 to form sealing fit; the sealing portion 2313 is ring-shaped and has a trapezoid cross section, and a plurality of sealing portions 2313 may be provided along an inclined direction of the sealing surface 2313, and in this embodiment, two sealing portions 2313 are provided. The cleaning solution sprayed from the water outlet 102 on the cylinder 12 has a downward component speed, and can generate upward reaction force on the shell 1, so that the matching surface 105 at the water inlet 101 on the shell 1 is tightly attached to the sealing part 2313 of the sealing surface 2312 of the sealing ring 231, and the sealing effect is improved.

The following specifically describes the assembly process of the cleaning nozzle of the present embodiment:

placing the first rolling bodies 24 in the first annular recess 220 of the boss 22; the water inlet pipe 21 and the first rolling bodies 24 penetrate through a through hole 130 at the bottom of the shell 1 along the vertical direction and then penetrate out of a water inlet 101 at the top of the shell 1, the first rolling bodies 24 are pushed into a second annular groove 103 of the shell 1, and the first rolling bodies 24 form rolling fit with the first annular groove 220 and the second annular groove 103; placing the second rolling bodies 25 in the fourth annular groove 104 of the shell 1, and screwing the sealing ring 231 on the water inlet pipe 21, so that the second rolling bodies 25 are jacked into the third annular groove 2311 of the sealing ring 231, and the second rolling bodies 25 form rolling fit with the third annular groove 2311 and the fourth annular groove 104 at the same time; the positioning nut 232 is screwed on the water inlet pipe 21 and is abutted against the upper surface of the sealing ring 231, the fastening nut 233 is screwed on the water inlet pipe 21 and is abutted against the positioning nut 232, and the positions of the positioning nut 232 and the fastening nut 233 are further adjusted, so that the shell 1 can rotate around the water inlet pipe 21 and water leakage caused by overlarge gaps is prevented; the sealing plug 14 is then mounted in the through hole 130 in the bottom of the housing 1, completing the assembly process.

In the working process of the cleaning nozzle in this embodiment: the cleaning spray head is connected with a water source through the external threads 211 of the water inlet pipe 21, and a wrench can be used for clamping grooves 212 on two sides of the water inlet pipe 21 for quick installation during connection; when the cleaning nozzle is in a working state, a water source conveys cleaning liquid to the water inlet pipe 21, the cleaning liquid enters the inside of the shell 1 from the other end of the water inlet pipe 21 and is sprayed out from the water outlet 102 of the shell 1, the sprayed cleaning liquid has tangential component speed with the surface of the cylinder 12 of the shell 1, tangential reaction force can be generated on the cylinder 12, the shell 1 is driven to rotate around the axis direction of the shell 1, in the process, the sprayed cleaning liquid can generate upward reaction force on the shell 1, the matching surface 105 at the water inlet 101 on the shell 1 is tightly attached to the sealing part 2313 on the sealing ring 231, and the sealing effect is improved.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims

1. The utility model provides a spin formula washs shower nozzle, includes the casing, the top of casing seted up the water inlet, the lateral part of casing seted up the delivery port, its characterized in that: the plurality of water outlets are distributed around the shell, and the axes of the water outlets are obliquely arranged relative to the axis of the shell;

2. The spin cleaning head of claim 1, wherein: the water outlets are distributed in a ring shape by taking the axis of the shell as the center, and a plurality of circles are distributed along the axis direction of the shell.

3. The spin cleaning head of claim 1, wherein: the shell comprises a top cover, a cylinder body and a bottom cover, wherein the top cover is connected to the top of the cylinder body, the bottom cover is connected to the bottom of the cylinder body, and the water outlets are formed in the side parts of the top cover, the cylinder body and the bottom cover.

4. A spin cleaning spray head according to claim 3, wherein: the included angle between the axis of the water outlet on the cylinder and the projection of the axis on the horizontal section of the cylinder is 15-45 degrees, and the included angle between the projection of the axis of the water outlet on the cylinder on the horizontal section of the cylinder and the projection of the center of the water outlet on the cylinder on the horizontal section and the connecting line of the center of the cylinder on the horizontal section is 45-75 degrees; the inclination direction of the water outlet on the bottom cover is consistent with the inclination direction of the water outlet on the cylinder; the inclined direction of the water outlet on the top cover and the inclined direction of the water outlet on the cylinder body are in mirror symmetry with the horizontal section of the cylinder body.

5. The spin cleaning head of claim 1, wherein: the water inlet mechanism comprises a water inlet pipe, one end of the water inlet pipe is positioned outside the shell, the other end of the water inlet pipe penetrates through the water inlet and stretches into the shell, a boss is arranged at the other end of the water inlet pipe, and the boss is rotatably connected with the inner wall of the shell.

6. The spin rinse spray head of claim 5, wherein: the upper surface of boss seted up first annular groove, the inner wall of casing on seted up the second annular groove, first annular groove, second annular groove's cross-section all be convex, and the position of both corresponds each other, first annular groove, second annular groove between be provided with first rolling element.

7. The spin rinse spray head of claim 5, wherein: a sealing component is detachably arranged on the water inlet pipe outside the shell and is rotatably connected with the outer wall of the shell.

8. The spin rinse spray head of claim 7, wherein: the sealing assembly comprises a sealing ring, the sealing ring is sleeved on the water inlet pipe, a third annular groove is formed in the lower surface of the sealing ring, a fourth annular groove is formed in the outer wall of the shell, the sections of the third annular groove and the fourth annular groove are arc-shaped, the positions of the third annular groove and the fourth annular groove correspond to each other, and a second rolling body is arranged between the third annular groove and the fourth annular groove.

9. The spin rinse spray head of claim 8, wherein: the lower surface of the sealing ring is provided with a sealing surface, the sealing surface is provided with a convex sealing part, the water inlet of the shell is provided with a matching surface, and the sealing part is propped against the matching surface.

10. The spin cleaning head of claim 1, wherein: the bottom of the shell is provided with a through hole, and a sealing plug is detachably arranged at the through hole.