A cleaning device for the interior of a tank

Abstract

The present application relates to the technical field of tank cleaning equipment, in particular to a cleaning device for the inside of a tank, comprising a water supply mechanism, a rotary head rotatably arranged on the water supply mechanism, a water inlet groove arranged at one end of the rotary head in rotational cooperation with the water supply mechanism, a water spray pipe movably connected to the outer surface of the rotary head through a connecting assembly, water channels arranged at positions corresponding to the connecting assemblies on the rotary head, a water pressure detection assembly and a water flow balancing element arranged in each water channel, and a water outlet pressure control assembly arranged at the outlet of the water spray pipe. The present application has the beneficial effect that when the water supply pressure increases, the water spray pipe is adjusted to an inclined state, and at this time the caliber of the outlet of the water spray pipe also becomes smaller, thereby improving the water spray pressure and coverage area, more effectively attacking and peeling off the dirt, oil and bacteria and other attachments on the inner wall of the tank, improving the cleaning efficiency and reducing the cleaning time.

Description

Technical Field

[0001] This invention relates to the field of tank washing equipment technology, and in particular to a cleaning device for the interior of a tank. Background Technology

[0002] Tank internal cleaning devices are equipment used to clean the internal surfaces of various tanks that may be used to store liquids, chemicals, food and beverages. A common cleaning device is a three-dimensional tank cleaner.

[0003] A three-dimensional tank cleaner is an industrial cleaning device that uses rotating nozzles that move simultaneously in the horizontal and vertical directions to achieve three-dimensional cleaning of the inside of a container.

[0004] A three-dimensional tank cleaner disclosed in Chinese patent CN217616623U enables the nozzle to rotate both vertically and horizontally, allowing for comprehensive three-dimensional cleaning of the inner wall of the tank. This improves the cleaning efficiency and results in a cleaner inner wall.

[0005] However, compared with existing technologies in related fields, the shortcomings of existing technologies are as follows:

[0006] Insufficient impact force: If the nozzles of existing tank cleaners use constant flow, they cannot provide enough impact force to effectively strike and peel off stubborn dirt on the inner wall of the tank.

[0007] Water waste and scale accumulation: If the nozzles of existing tank cleaners use continuous high-pressure direct spray, the cleaning efficiency is not high. The water flow cannot penetrate into the tiny gaps in the inner wall of the tank, which may lead to the accumulation of scale and other dirt, affecting the cleanliness and hygiene of the tank. Summary of the Invention

[0008] The purpose of this invention is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a cleaning device for the interior of a tank.

[0009] The objective of this invention is achieved through the following technical solution: a cleaning device for the interior of a tank, comprising a water supply mechanism, a rotating head rotatably mounted on the water supply mechanism, a water inlet groove at one end of the rotating head that rotatably engages with the water supply mechanism, a spray pipe movably connected to the outer surface of the rotating head via a connecting component, water channels being provided at the positions of multiple connecting components on the rotating head, a water pressure detection component and a water flow balancing component being provided inside each water channel, one end of the water flow balancing component being fixedly mounted inside the water channel, an outlet pressure control component being provided at the outlet of the spray pipe, and a drive mechanism for controlling the rotation of the rotating head being provided on the water supply mechanism; When the water supply pressure is high, the water pressure detection component detects the change in water pressure and causes the connecting component to tilt the spray pipe away from the inlet tank. At this time, the outlet pressure control component is affected by the water pressure, causing the nozzle of the spray pipe to gradually become smaller, thereby increasing the spray pressure of the spray pipe. When the water supply pressure is low, the water pressure detection component detects the change in water pressure and causes the connecting component to tilt the spray pipe away from the inlet tank. At this time, the outlet pressure control component is affected by the water pressure, causing the nozzle of the spray pipe to gradually become larger, thereby reducing the spray pressure of the spray pipe while increasing the coverage of the water flow.

[0010] Furthermore, the connecting component includes a movable part, and the rotating head has a movable groove corresponding to the position of the movable part. The movable groove is connected to the water channel, and the movable part has a connecting hole at the center of the spray pipe.

[0011] Furthermore, the water pressure detection assembly includes a first elastic member fixedly installed inside the water channel, with a hinge member hinged to the end of the first elastic member away from the fixed connection with the water channel, and the end of the hinge member away from the first elastic member being fixedly connected to a movable member.

[0012] Furthermore, the movable part is spherical in shape, and the movable groove is a spherical groove. By using the spherical movable part and the spherical groove to cooperate, the movable part can move while also having a sealing property, preventing water from escaping from the gap between the movable part and the movable groove when the movable part is moving.

[0013] Furthermore, both the first elastic element and the water flow balancing element have arc-shaped cross-sections, and the length of the water flow balancing element is less than the length of the first elastic element.

[0014] Furthermore, the water pressure control component includes a movable seat that is slidably disposed inside the spray pipe. The movable seat is connected to the outlet of the spray pipe by two second elastic members. The center of the movable seat is provided with a through hole for water to flow through.

[0015] Furthermore, both the connecting hole and the inner hole of the spray pipe are rectangular.

[0016] Furthermore, the bottom of the movable seat is formed with a chamfered surface.

[0017] Furthermore, the water supply mechanism includes a fixing component, which has an installation groove and a rotating groove inside. One end of the rotating head is connected to the rotating groove through a sealed bearing, and a water supply pipe connected to the rotating groove is fixed on the outer surface of the fixing component.

[0018] Furthermore, the drive mechanism includes a motor fixedly installed inside the mounting slot, a turntable fixedly installed at the output end of the motor, the turntable and the rotating head being fixedly connected by multiple connecting rods, and the turntable being connected to the mounting slot through a sealed bearing.

[0019] The beneficial effects of this invention are as follows: By setting up a connecting component, a water spray pipe, a water pressure detection component, and a water outlet pressure control component, and utilizing the inclined design of the water spray pipe and the dynamic adjustment of the water outlet pressure, combined with the linkage of the water pressure detection component and the water outlet pressure control component, automatic adjustment of the spray angle and pressure is achieved. Compared with traditional cleaning devices with fixed angles or single pressures, this invention can dynamically adjust the inclination angle and nozzle size of the water spray pipe according to changes in the water supply pressure, thereby enhancing the water flow impact force under high pressure to remove stubborn dirt, and expanding the water flow coverage under low pressure to adapt to different cleaning needs. In addition, the turbulence design further improves the cleaning efficiency. Compared with traditional laminar flow cleaning methods, it significantly improves the dirt removal effect and cleaning quality, while reducing the waste of water resources and energy consumption, and has higher adaptability and energy-saving and environmental protection advantages. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the fastener of the present invention;

[0022] Figure 2 This is a schematic diagram of the first axial side of the rotating head when the water spray pipe of the present invention is directly spraying;

[0023] Figure 3 This is a schematic diagram of the second axial side of the rotating head when the water spray pipe of the present invention is directly spraying;

[0024] Figure 4 This is a schematic diagram of the first axial side of the rotating head when the water spray pipe of the present invention is spraying at an angle;

[0025] Figure 5 This is a schematic diagram of the second axial side of the rotating head when the water spray pipe of the present invention is spraying at an angle;

[0026] Figure 6This is a schematic diagram of the structure of the connecting component and the water pressure detection component of the present invention;

[0027] Figure 7 This is a schematic diagram of the water outlet pressure control component of the present invention;

[0028] Figure 8 This is a schematic diagram of the water supply mechanism and drive mechanism of the present invention;

[0029] Figure 9 This is a schematic diagram of the connecting rod of the present invention.

[0030] In the diagram: 1. Water supply mechanism; 101. Fixing component; 1011. Mounting groove; 1012. Rotating groove; 102. Water supply pipe; 2. Rotating head; 201. Water inlet groove; 202. Waterway; 203. Movable groove; 3. Connecting assembly; 301. Movable component; 302. Connecting hole; 4. Spray pipe; 5. Water pressure detection assembly; 501. First elastic component; 502. Hinge component; 6. Water flow balancing component; 7. Water outlet pressure control assembly; 701. Movable seat; 702. Second elastic component; 8. Drive mechanism; 801. Motor; 802. Turntable; 803. Connecting rod. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Additional aspects and advantages of the invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0033] An embodiment of the cleaning device for the interior of a tank according to the present invention, such as... Figures 1 to 9As shown, the device includes a water supply mechanism 1, a rotating head 2 rotatably mounted on the water supply mechanism 1, and a water inlet trough 201 at one end of the rotating head 2 that rotatably engages with the water supply mechanism 1. A spray pipe 4 is movably connected to the outer surface of the rotating head 2 via a connecting assembly 3. Water channels 202 are provided at positions corresponding to multiple connecting assemblies 3 on the rotating head 2. Each water channel 202 contains a water pressure detection assembly 5 and a water flow balancing component 6. One end of the water flow balancing component 6 is fixedly mounted inside the water channel 202. A water pressure control assembly 7 is provided at the outlet of the spray pipe 4. The water supply mechanism 1 is equipped with a drive mechanism 8 for controlling the rotation of the rotating head 2. When the water supply pressure of the water supply mechanism 1 is high... When the water pressure detection component 5 detects a change in water pressure, it causes the connecting component 3 to tilt the spray pipe 4 away from the water inlet tank 201. At this time, the outlet pressure control component 7 is affected by the water pressure, causing the nozzle of the spray pipe 4 to gradually become smaller, thereby increasing the spray pressure of the spray pipe 4. When the water supply pressure of the water supply mechanism 1 is low, the water pressure detection component 5 detects a change in water pressure and causes the connecting component 3 to tilt the spray pipe 4 away from the water inlet tank 201. At this time, the outlet pressure control component 7 is affected by the water pressure, causing the nozzle of the spray pipe 4 to gradually become larger, thereby reducing the spray pressure of the spray pipe 4 while increasing the coverage area of ​​the water flow (e.g., Figures 2 to 5 (As shown).

[0034] like Figure 1 and Figure 8 As shown, the water supply mechanism 1 includes a fixing member 101. The fixing member 101 has an installation groove 1011 and a rotating groove 1012 inside. One end of the rotating head 2 is connected to the rotating groove 1012 through a sealed bearing. A water supply pipe 102 connected to the rotating groove 1012 is fixed on the outer surface of the fixing member 101. By using the sealed bearing, the friction force when the rotating head 2 rotates can be reduced, and water can be prevented from escaping from the gap between the rotating head 2 and the rotating groove 1012.

[0035] like Figure 1 , Figure 3 , Figure 8 and Figure 9As shown, the drive mechanism 8 includes a motor 801 fixedly installed inside the mounting groove 1011. A turntable 802 is fixedly installed at the output end of the motor 801. The turntable 802 is fixedly connected to the rotating head 2 through multiple connecting rods 803. The turntable 802 is connected to the mounting groove 1011 through a sealed bearing. The sealed bearing reduces the friction when the turntable 802 rotates and prevents water from entering the mounting groove 1011. When the device is placed inside the tank, water is supplied to the rotating groove 1012 through the water supply pipe 102. The water then enters multiple water channels 202 through the water inlet trough 201. Afterward, the water enters the spray pipe 4 through the connecting hole 302 of the movable part 301 and is then sprayed out through the spray pipe 4. At this time, the motor 801 controls the turntable 802 to rotate. The turntable 802 drives the rotating head 2 to rotate through multiple connecting rods 803. When the rotating head 2 rotates, the spray pipe 4 allows the water flow to thoroughly rinse the inner wall of the tank.

[0036] like Figure 3 , Figure 5 and Figure 6 As shown, the connecting component 3 includes a movable part 301. The rotating head 2 has a movable groove 203 corresponding to the position of the movable part 301. The movable groove 203 is connected to the water channel 202. The movable part 301 has a connecting hole 302 at the center of the water spray pipe 4. Both the connecting hole 302 and the inner hole of the water spray pipe 4 are rectangular. The outer surface of the movable part 301 is provided with a sealing ring (not shown in the figure). The movable part 301 is spherical in shape, and the movable groove 203 is a spherical groove. By using the spherical movable part 301 and the spherical groove to cooperate, the movable part 301 can move while also having a sealing characteristic, preventing water from escaping from the gap between the movable part 301 and the movable groove 203 when the movable part 301 is moving (the above principle is the same as the principle of a ball valve).

[0037] like Figure 3 , Figure 5 and Figure 6 As shown, the water pressure detection component 5 includes a first elastic member 501 fixedly installed inside the water channel 202. One end of the first elastic member 501 is fixedly connected to the water channel 202. A hinge member 502 is hinged to the end of the first elastic member 501 away from the fixed connection with the water channel 202. The end of the hinge member 502 away from the first elastic member 501 is fixedly connected to the movable member 301. The cross-sections of the first elastic member 501 and the water flow balancing member 6 are both arc-shaped. The length of the water flow balancing member 6 is less than the length of the first elastic member 501. The water flow balancing member can balance the flow of water inside the water channel 202.

[0038] Combining the above structures: such as Figures 2 to 6As shown, when the water supply pressure of the water supply mechanism 1 is high, the water pressure detection component 5 detects the change in water pressure and causes the connecting component 3 to tilt the spray pipe 4 away from the water inlet 201 (as the water pressure increases, the first elastic element 501 deforms under the influence of the water pressure, and the extension effect of the first elastic element 501 during deformation causes the hinge 502 to control the movable part 301 and the spray pipe 4 to tilt away from the water inlet 201). This adjusts the spray pipe 4 to an oblique spray state. When the spray pipe 4 is tilted, firstly, the direction of the water flow forms a certain angle with the inner wall of the tank, which increases the impact force of the water flow on the inner wall. This oblique spray can more effectively strike and peel off stubborn residues such as dirt, bacteria, and grease on the inner wall of the tank; secondly, the oblique spray can cover more areas of the inner wall of the tank, especially in corners and grooves that are difficult to reach with vertical spray, improving... The overall cleaning quality is improved; thirdly, by tilting the water spray, the water flow can penetrate deeper into the tiny gaps in the inner wall of the tank, which helps to reduce the accumulation of scale and other dirt and keep the inside of the tank clean; when the water supply pressure of the water supply mechanism 1 is low, the water pressure detection component 5 detects the change in water pressure and causes the connecting component 3 to drive the spray pipe 4 to tilt to one side of the water inlet 201. (When the water pressure decreases, the elastic force of the first elastic element 501 is used to make its bending range gradually increase, and then the hinge 502 can control the moving part 301 and the spray pipe 4 to tilt to one side of the water inlet 201) so that the spray pipe 4 is adjusted to a direct spray state. Since the tilted water spray improves the cleaning efficiency, the amount of water used can be reduced in some cases, while maintaining or improving the cleaning effect. Moreover, when high-pressure cleaning is not required, a low flow rate can be used for large-area rewashing, thereby improving the cleaning effect without increasing energy consumption.

[0039] like Figure 3 , Figure 5 and Figure 7As shown, the water pressure control assembly 7 includes a movable seat 701 slidably disposed inside the spray pipe 4. The movable seat 701 is connected to the inlet of the spray pipe 4 via two second elastic members 702. The ends of the two second elastic members 702 are fixedly connected to the movable seat 701, and the ends of the two second elastic members 702 away from the movable seat 701 are fixedly connected to the inner wall of the spray pipe 4. The center of the movable seat 701 is provided with a through hole for water flow. The bottom of the movable seat 701 is formed with a chamfered surface. Firstly, the chamfered surface can... Firstly, to improve the effect of water flow entering the through hole, secondly, the arc-shaped second elastic element 702 may cause the water flow to generate shear force at the outlet of the spray pipe 4. This shear force can break the laminar flow state of the water flow, thereby promoting the formation of turbulence (when the water flow velocity exceeds a certain threshold, usually called the critical velocity, the flow will change from laminar flow to turbulence). In the turbulent state, the impact force of the water flow is enhanced, which can more effectively strike and peel off dirt, grease and bacteria and other attachments on the inner wall of the tank, thereby improving cleaning efficiency and reducing cleaning time.

[0040] Combining the above structures: such as Figures 2 to 7 As shown, when the water supply pressure of the water supply mechanism 1 is high, the outlet pressure control component 7 is affected by the water pressure, and the movable seat 701 will slide towards the outlet of the spray pipe 4, thereby causing the two second elastic members 702 to deform (bend). When the two second elastic members 702 deform, the gap between them will gradually decrease, thereby increasing the spray pressure of the spray pipe 4. When the water supply pressure of the water supply mechanism 1 is low, the outlet pressure control component 7 is affected by the decrease in water pressure. Using the elasticity of the two second elastic members 702, the movable seat 701 will slide away from the outlet of the spray pipe 4. The bending amplitude of the two second elastic members 702 will gradually decrease, and the gap between them will gradually increase, thereby reducing the spray pressure of the spray pipe 4 while increasing the coverage of the water flow.

[0041] The water supply mechanism 1, motor 801 and sealed bearing described in this application are all known technologies in this field, therefore their specific structures and working principles are not described in detail.

[0042] The work process is as follows:

[0043] S1: When in use, the device is placed inside the tank;

[0044] S2: As Figure 1 , Figure 2 , Figure 3 and Figure 8As shown, after the device is placed inside the tank, water is supplied to the rotating tank 1012 through the water supply pipe 102. Then the water enters multiple water channels 202 through the water inlet 201. After that, the water enters the spray pipe 4 through the connecting hole 302 of the movable part 301, and then sprays the water out through the spray pipe 4. At this time, the turntable 802 is controlled to rotate by the motor 801. The turntable 802 drives the rotating head 2 to rotate through multiple connecting rods 803. When the rotating head 2 rotates, the spray pipe 4 can make the water flow thoroughly rinse the inner wall of the tank.

[0045] S3: As Figure 1 and Figure 8 As shown, when it is necessary to clean stubborn dirt, the water supply pressure of water supply unit 1 is increased;

[0046] S4: As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8 As shown, when the water supply pressure of the water supply mechanism 1 is high, the water pressure detection component 5 detects the change in water pressure and causes the connecting component 3 to drive the spray pipe 4 to tilt away from the water inlet tank 201 (when the water pressure increases, the first elastic element 501 will deform under the influence of the water pressure, and thus the extension effect of the first elastic element 501 during deformation will cause the hinge 502 to control the movable part 301 and the spray pipe 4 to tilt away from the water inlet tank 201), thereby adjusting the spray pipe 4 to an oblique spray state;

[0047] S5: As Figure 1 , Figure 3 , Figure 5 , Figure 7 and Figure 8 As shown, when the water supply pressure of the water supply mechanism 1 is high, the water pressure control component 7 is affected by the water pressure, and the movable seat 701 will slide towards the outlet of the spray pipe 4, thereby causing the two second elastic members 702 to deform (bend). When the two second elastic members 702 deform, the gap between them will gradually decrease, thereby increasing the spray pressure of the spray pipe 4.

[0048] S6: In summary: When the water spray pipe 4 is tilted, firstly, the direction of the water flow forms a certain angle with the inner wall of the tank, which increases the impact force of the water flow on the inner wall. This oblique spray can more effectively strike and remove stubborn residues such as dirt, bacteria, and grease on the inner wall of the tank; secondly, the tilted spray can allow the water flow to cover more areas of the inner wall of the tank, especially in corners and grooves that are difficult to reach with vertical spray, improving the overall cleaning quality; thirdly, through the tilted spray, the water flow can penetrate deeper into the tiny gaps in the inner wall of the tank, which helps to reduce the accumulation of scale and other dirt and keep the inside of the tank clean.

[0049] S7: As Figure 1 and Figure 8 As shown, when simple cleaning is required, the water supply pressure of water supply unit 1 is reduced;

[0050] S8: As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8 As shown, when the water supply pressure of the water supply mechanism 1 is low, the water pressure detection component 5 detects the change in water pressure and causes the connecting component 3 to drive the spray pipe 4 to tilt to one side of the water inlet tank 201. (When the water pressure decreases, the elastic force of the first elastic element 501 is used to make its bending range gradually increase, and then the hinge 502 can control the movable part 301 and the spray pipe 4 to tilt to one side of the water inlet tank 201) thereby adjusting the spray pipe 4 to a direct spray state.

[0051] S9: such as Figure 1 , Figure 3 , Figure 5 , Figure 7 and Figure 8 As shown, when the water supply pressure of the water supply mechanism 1 is low, the outlet pressure control component 7 is affected by the decrease in water pressure. Using the elastic force of the two second elastic elements 702, the movable seat 701 will slide away from the outlet of the spray pipe 4. The bending amplitude of the two second elastic elements 702 will gradually decrease, and the gap between them will gradually increase, thereby reducing the spray pressure of the spray pipe 4 while increasing the coverage of the water flow.

[0052] S10: In summary, since tilted water spraying improves cleaning efficiency, water consumption can be reduced in some cases while maintaining or improving the cleaning effect. Furthermore, when high-pressure cleaning is not required, a large area can be rewashed with a low flow rate, thereby improving the cleaning effect without increasing energy consumption.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cleaning device for the interior of a tank, characterized in that: The device includes a water supply mechanism, on which a rotating head is rotatably mounted. One end of the rotating head that rotatably engages with the water supply mechanism is provided with a water inlet groove. A water spray pipe is movably connected to the outer surface of the rotating head via a connecting component. Water channels are provided at the positions of multiple connecting components on the rotating head. Water pressure detection components and water flow balancing components are provided inside the water channels. One end of the water flow balancing component is fixedly mounted inside the water channel. A water outlet pressure control component is provided at the outlet of the water spray pipe. The water supply mechanism is provided with a drive mechanism for controlling the rotation of the rotating head. The connecting assembly includes a movable part, a movable groove corresponding to the position of the movable part on the rotating head, the movable groove being connected to the water channel, and a connecting hole corresponding to the center of the spray pipe on the movable part; the water pressure detection assembly includes a first elastic element fixedly installed inside the water channel at one end, a hinged member at the end of the first elastic element away from the fixed connection to the water channel, and a fixed connection between the end of the hinged member away from the first elastic element and the movable part; the cross-sections of the first elastic element and the water flow balancing element are both arc-shaped, and the length of the water flow balancing element is less than the length of the first elastic element; the outlet pressure control assembly includes a movable seat slidably installed inside the spray pipe, the movable seat being connected to the outlet of the spray pipe by two second elastic elements, a through hole for water flow at the center of the movable seat, and a fixed connection between the end of the second elastic element away from the movable seat and the inner wall of the spray pipe; When the water supply pressure is high, the water pressure detection component detects the change in water pressure and causes the connecting component to tilt the spray pipe away from the inlet tank. At this time, the outlet pressure control component is affected by the water pressure, causing the nozzle of the spray pipe to gradually become smaller, thereby increasing the spray pressure of the spray pipe. When the water supply pressure is low, the water pressure detection component detects the change in water pressure and causes the connecting component to tilt the spray pipe away from the inlet tank. At this time, the outlet pressure control component is affected by the water pressure, causing the nozzle of the spray pipe to gradually become larger, thereby reducing the spray pressure of the spray pipe while increasing the coverage of the water flow.

2. The cleaning device for the interior of a tank according to claim 1, characterized in that: The moving part is spherical in shape, and the moving groove is a spherical groove. By using the spherical moving part and the spherical groove to cooperate, the moving part can move while also having a sealing property, preventing water from escaping from the gap between the moving part and the moving groove when the moving part is moving.

3. A cleaning device for the interior of a tank according to claim 2, characterized in that: Both the connecting hole and the inner hole of the spray pipe are rectangular.

4. A cleaning device for the interior of a tank according to claim 2, characterized in that: The bottom of the movable base has a chamfered surface.

5. A cleaning device for the interior of a tank according to claim 1, characterized in that: The water supply mechanism includes a fixing component, which has an installation groove and a rotating groove inside. One end of the rotating head is connected to the rotating groove through a sealed bearing. A water supply pipe connected to the rotating groove is fixed on the outer surface of the fixing component.

6. A cleaning device for the interior of a tank according to claim 5, characterized in that: The drive mechanism includes a motor fixedly installed inside the mounting slot. A turntable is fixedly installed at the output end of the motor. The turntable and the rotating head are fixedly connected by multiple connecting rods. The turntable is connected to the mounting slot through a sealed bearing.

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