Inner wall cleaning equipment for tank for dairy product processing

Abstract

The invention discloses inner wall cleaning equipment for a tank for dairy product processing, and relates to the technical field of tank cleaning, the inner wall cleaning equipment comprises a pair of side supporting bodies, a pair of guide rails, a moving module, a square shaft, a lifting assembly and a cleaning assembly, universal wheels are mounted on the pair of side supporting bodies, the pair of guide rails is mounted above the pair of side supporting bodies, and the moving module is mounted above the pair of side supporting bodies. The moving module is slidably installed on the pair of guide rails, a first machine box is rotatably installed on the moving module, a main motor is installed in the first machine box, the square shaft is rotatably connected to the first machine box and connected with a motor shaft of the main motor, and the lifting assembly is installed at the end, away from the first machine box, of the square shaft. The other end of the lifting assembly is connected with a lifting table, the cleaning assembly is installed on the lifting table, an operator pushes cleaning equipment to the position above a tank to be cleaned, the control system is used for driving the moving module to move on the guide rail, and the moving module can further control the first machine box to rotate.

Description

Technical Field

[0001] This invention relates to the field of tank cleaning technology, specifically to a tank inner wall cleaning device used in dairy product processing. Background Technology

[0002] In the dairy processing industry, the cleanliness of storage tanks and fermentation tanks is directly related to product quality and safety. Although the currently widely used fixed cleaning systems can achieve automated cleaning, there are still two major technical bottlenecks. First, the traditional rotating spray ball or spray bar structure is complex and has blind spots in the internal flow channel. During the cleaning process, high-fat milk residues (such as butter and casein) are easy to adhere to the nozzle hinge and drive shaft sealing gap, forming a biofilm. Conventional backwashing is difficult to completely remove them, and frequent disassembly and manual brushing are required, which increases downtime by more than 30%. More seriously, residual microorganisms may contaminate subsequent batches of products. Secondly, most existing telescopic spray arms are driven by hydraulics or rack and pinion. To meet the thrust requirements, the diameter of the support structure is often increased. The excessive length of the cantilever causes end-point shaking, affecting the uniformity of the jet coverage. Most factories are forced to configure multiple sets of dedicated cleaning equipment, significantly increasing the burden of warehousing and maintenance. These defects limit the universality and economy of the equipment. Summary of the Invention

[0003] The purpose of this invention is to provide a tank inner wall cleaning device for dairy product processing, so as to solve the problems mentioned in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a tank inner wall cleaning device for dairy product processing, comprising a pair of side supports, a pair of guide rails, a moving module, a square shaft, a lifting assembly, and a cleaning assembly. Universal wheels are installed on the pair of side supports. The pair of guide rails are installed above the pair of side supports. The moving module is slidably mounted on the pair of guide rails. A first housing is rotatably mounted on the moving module. A main motor is installed in the first housing. The square shaft is rotatably connected to the first housing and connected to the motor shaft of the main motor. The lifting assembly is installed at the end of the square shaft away from the first housing. The other end of the lifting assembly is connected to a lifting platform. The cleaning assembly is installed on the lifting platform. The operator pushes the cleaning device above the tank to be cleaned and uses a control system to drive the moving module to move on the guide rails. The moving module can also control the rotation of the first housing. The lifting assembly and the cleaning assembly simultaneously enter the tank to prepare for cleaning. The operator uses cable ties to fix the nozzle to the moving module and sends water to the nozzle through a water pipe. The water is sprayed onto the inner wall of the tank through the nozzle.

[0005] Furthermore, the lifting assembly includes a first electric actuator and a second electric actuator. The square shaft is hollow, and two fixed blocks are rotatably mounted on the side of the square shaft away from the first housing. The two fixed blocks are arranged opposite to each other. The first electric actuator and the second electric actuator are respectively mounted on the two fixed blocks. The installation height of the first electric actuator is higher than that of the second electric actuator. The first electric actuator and the second electric actuator are connected to a control system via a circuit. A first driven gear is connected to the junction of the fixed block connected to the first electric actuator and the square shaft. A second driven gear is connected to the junction of the fixed block connected to the second electric actuator and the square shaft.

[0006] Furthermore, a drive gear is rotatably mounted inside the square shaft. The drive gear meshes with a first driven gear and a second driven gear. A second housing is provided on the outside of the square shaft, and a first motor is installed inside the second housing. The first motor is connected to the control system circuit. A worm gear is connected to the motor shaft of the first motor and is rotatably mounted inside the square shaft. A worm wheel is integrally provided in the middle of the drive gear and meshes with the worm gear. When it is necessary to control the height of the lifting platform, the control system energizes the first motor, which drives the worm gear to rotate. The worm gear drives the worm wheel to rotate, and the worm wheel drives the drive gear to rotate synchronously. The drive gear drives the first driven gear and the second driven gear to rotate. Since the meshing positions of the first driven gear and the second driven gear are opposite to those of the drive gear, the first driven gear and the second driven gear rotate at the same speed and in the same direction. Then, through the fixed block, the first electric push rod and the second electric push rod swing, driving the lifting platform to rise and fall. Under the drive of the first motor and the first and second electric push rods, the lifting platform can be controlled to move to a suitable position so that the cleaning component can clean the tank.

[0007] Furthermore, the lifting platform has transition holes on both sides, with different heights. The piston rods of the first and second electric push rods are rotatably connected to the two transition holes respectively. A second motor is installed on the lifting platform and connected to the control system circuit. The cleaning component is connected to the motor shaft of the second motor. The height between the two fixed blocks is the same as the height of the two transition holes on the lifting platform. During operation, the control system controls the first and second electric push rods to extend or retract by the same distance simultaneously, keeping the axes of the first and second electric push rods parallel. The square shaft, the first electric push rod, the second electric push rod, and the lifting platform form a parallel four-bar linkage. No matter how the first and second electric push rods swing, the lifting platform remains parallel to the bottom surface of the tank.

[0008] Furthermore, the cleaning assembly includes a rotating column, a third electric actuator, and a constraint cylinder. The rotating column is rotatably connected to the lifting platform. The third electric actuator is located inside the rotating column, and a slide rail is provided inside the rotating column. The constraint cylinder is sleeved on the outside of the rotating column, and a cross plate is provided on the top of the constraint cylinder. The cross plate is slidably connected to the slide rail. The piston rod of the third electric actuator is connected to the cross plate. When the third electric actuator pushes the constraint cylinder to its lowest position, the rollers abut against the cleaning rods, and all the cleaning rods come together to form a cylinder with the same outer diameter as the rotating column. When the third electric actuator raises the constraint cylinder, the rollers abut against the folding rods, and the cleaning rods lose the constraint of the constraint cylinder. Under the action of the return spring, they open outward until the cleaning rods and folding rods form a right angle, and the brushes on the cleaning rods face the bottom. When the second motor drives the rotating column to rotate, the cleaning rods begin to rotate, and the brushes clean the bottom surface of the tank. The main motor drives the square shaft to rotate, expanding the cleaning range of the cleaning rods and brushes.

[0009] Furthermore, the cleaning assembly includes several folding rods and a number of cleaning rods equal to the number of folding rods. Several folding rods are rotatably mounted on the end of the rotating column away from the lifting platform. A return spring is provided at the junction of the folding rod and the rotating column. The several folding rods are evenly distributed in a ring. A cleaning rod is rotatably mounted on the end of each folding rod away from the rotating column. A return spring is provided at the junction of the cleaning rod and the folding rod. A brush is provided on one side of each cleaning rod. When the third electric push rod continues to raise the constraint cylinder, the folding rod loses the constraint of the constraint cylinder and opens outward under the action of the return spring. At this time, the brush on the cleaning rod faces outward, and the brush cleans the side of the tank.

[0010] Furthermore, several rollers are rotatably installed at the bottom of the constraint cylinder, the number of which is the same as the number of folding rods. The rollers block the folding rods or cleaning rods. The rotating column has an arc-shaped notch at the junction of each folding rod. As the folding rod flips outward, the depth of the arc-shaped notch gradually increases. Under the action of the tension spring, the inner sliding rod slides along the arc-shaped notch, and the locking block is inserted into the locking groove, so that the folding rod and the cleaning rod are fixedly connected and cannot rotate relative to each other. Even during rotation, the cleaning rod will not be affected by centrifugal force and will not deflect outward, ensuring that the brush on the cleaning rod faces outward, so as to achieve the effect of cleaning the side of the tank.

[0011] Furthermore, each of the aforementioned folding rods has an inner sliding rod slidably installed inside. A tension spring is also installed between the inner sliding rod and the interior of the folding rod. The end of the inner sliding rod away from the cleaning rod extends out of the folding rod and slides in contact with the arc-shaped notch. A locking block is installed at the end of the inner sliding rod near the cleaning rod. A locking groove is opened on the rotating shaft of each of the cleaning rods. The locking block cooperates with the locking groove. After the inner wall and bottom surface of the tank are cleaned, the third electric push rod pushes the constraint cylinder downward. The folding rod retracts first, and the inner sliding rod is squeezed into the folding rod by the arc-shaped notch. The locking block leaves the locking groove, and the cleaning rod retracts in turn. The constraint cylinder scrapes off the water stains attached to the outer wall of the folding rod. When the cleaning rod is closed into a cylinder with the same outer diameter as the rotating column, it is convenient for the operator to rinse the concentrated brushes. The outer side of the cleaning rod is also easier to clean. Through the setting of the cleaning components, the inner wall and bottom surface of the tank can be cleaned after the folding rod and cleaning rod are opened. The folding rod and cleaning rod are easier to clean after they are closed, which solves the technical problem of difficult cleaning of cleaning equipment.

[0012] Compared with the prior art, the beneficial effects of the present invention are: After the inner wall and bottom of the tank are cleaned, the constraint cylinder retracts the folding rod to scrape off the water stains adhering to the outer wall of the folding rod, achieving a partial self-cleaning function. When the cleaning rod is closed into a cylinder, it is convenient for the operator to rinse the concentrated brushes. The outer side of the cleaning rod is also easier to clean. Through the setting of the cleaning components, the folding rod and cleaning rod can be opened to clean the inner wall and bottom of the tank. The folding rod and cleaning rod are easier to clean when closed, which solves the technical problem of cleaning equipment being difficult to clean. At the same time, it also solves the technical problem of the cleaning mechanism being too large and unable to flexibly adapt to tanks of different sizes. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention; Figure 2 This is a partial schematic diagram of the external structure of the present invention; Figure 3 For the present invention Figure 2 A magnified view of a portion of region A in the middle; Figure 4 This is a schematic diagram of the cleaning component of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the cleaning component of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the cleaning component of the present invention. Figure 3 ; Figure 7 This is a schematic diagram of the rotating column structure of the present invention; Figure 8 This is a schematic diagram of the internal structure of the folding rod of the present invention.

[0014] In the diagram: 1. Side support; 2. Guide rail; 3. Moving module; 4. First housing; 5. Square shaft; 6. Second housing; 7. First motor; 8. Worm gear; 9. Worm wheel; 10. Driving gear; 11. First driven gear; 12. Second driven gear; 13. First electric actuator; 14. Second electric actuator; 15. Lifting platform; 16. Second motor; 17. Rotary column; 18. Third electric actuator; 19. Constraint cylinder; 20. Roller; 21. Folding rod; 22. Cleaning rod; 23. Arc-shaped notch; 24. Inner slide rod; 25. Tension spring; 26. Locking block. Detailed Implementation

[0015] 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.

[0016] Example: Figures 1-8 As shown, this invention provides a tank inner wall cleaning device for dairy product processing, including a pair of side supports 1, a pair of guide rails 2, a moving module 3, a square shaft 5, a lifting assembly, and a cleaning assembly. Universal wheels are mounted on the pair of side supports 1. The pair of guide rails 2 are mounted above the pair of side supports 1. The moving module 3 is slidably mounted on the pair of guide rails 2. A first housing 4 is rotatably mounted on the moving module 3. A main motor is installed in the first housing 4. The square shaft 5 is rotatably connected to the first housing 4 and connected to the motor shaft of the main motor. The lifting assembly is mounted on... The lifting assembly is mounted on the end of the square shaft 5 away from the first housing 4. The other end of the lifting assembly is connected to the lifting platform 15. The cleaning assembly is installed on the lifting platform 15. The operator pushes the cleaning equipment above the tank to be cleaned and uses the control system to drive the moving module 3 to move on the guide rail 2. The moving module 3 can also control the rotation of the first housing 4. The lifting assembly and the cleaning assembly enter the tank at the same time to prepare for cleaning. The operator uses cable ties to fix the nozzle to the moving module 3 and sends water to the nozzle through the water pipe. The water is sprayed onto the inner wall of the tank through the nozzle.

[0017] The lifting assembly includes a first electric actuator 13 and a second electric actuator 14. A hollow square shaft 5 has two fixed blocks rotatably mounted on the side of the square shaft 5 away from the first housing 4, with the two fixed blocks facing each other. The first electric actuator 13 and the second electric actuator 14 are respectively mounted on the two fixed blocks, with the installation height of the first electric actuator 13 higher than that of the second electric actuator 14. The first electric actuator 13 and the second electric actuator 14 are connected to a control system via a circuit. A first driven gear 11 is connected to the junction of the fixed block connected to the first electric actuator 13 and the square shaft 5, and a second driven gear 12 is connected to the junction of the fixed block connected to the second electric actuator 14 and the square shaft 5. A driving gear 10 is rotatably mounted inside the square shaft 5, meshing with the first driven gear 11 and the second driven gear 12. A second housing 6 is located outside the square shaft 5, and a first motor 7 is installed inside the second housing 6. The first motor 7 is connected to the control system circuit. A worm gear 8 is connected to the motor shaft of motor 7. The worm gear 8 is rotatably installed inside square shaft 5. A worm wheel 9 is integrally set in the middle of the drive gear 10. The worm wheel 9 is meshed with the worm gear 8. When it is necessary to control the height of the lifting platform 15, the control system energizes the first motor 7. The first motor 7 drives the worm gear 8 to rotate. The worm gear 8 drives the worm wheel 9 to rotate. The worm wheel 9 drives the drive gear 10 to rotate synchronously. The drive gear 10 drives the first driven gear 11 and the second driven gear 12 to rotate. Since the meshing positions of the first driven gear 11 and the second driven gear 12 are opposite to those of the drive gear 10, the first driven gear 11 and the second driven gear 12 rotate at the same speed and in the same direction. Then, through the fixed block, the first electric push rod 13 and the second electric push rod 14 swing, driving the lifting platform 15 to rise and fall. Under the drive of the first motor 7 and the first electric push rod 13 and the second electric push rod 14, the lifting platform 15 can be controlled to move to a suitable position so that the cleaning component can clean the tank.

[0018] The lifting platform 15 has two connecting holes on its two sides, with different heights. The piston rods of the first electric push rod 13 and the second electric push rod 14 are rotatably connected to the two connecting holes respectively. A second motor 16 is installed on the lifting platform 15 and is connected to the control system circuit. The cleaning component is connected to the motor shaft of the second motor 16. The height between the two fixed blocks is the same as the height of the two connecting holes on the lifting platform 15. During operation, the control system controls the first electric push rod 13 and the second electric push rod 14 to extend or retract by the same distance at the same time, keeping the axes of the first electric push rod 13 and the second electric push rod 14 parallel. The square shaft 5, the first electric push rod 13, the second electric push rod 14 and the lifting platform 15 form a parallel four-bar linkage. No matter how the first electric push rod 13 and the second electric push rod 14 swing, the lifting platform 15 is always parallel to the bottom surface of the tank.

[0019] The cleaning assembly includes a rotating column 17, a third electric actuator 18, and a constraint cylinder 19. The rotating column 17 is rotatably connected to the lifting platform 15. The third electric actuator 18 is located inside the rotating column 17, and a slide rail is provided inside the rotating column 17. The constraint cylinder 19 is sleeved on the outside of the rotating column 17, and a cross plate is provided on the top of the constraint cylinder 19. The cross plate is slidably connected to the slide rail. The piston rod of the third electric actuator 18 is connected to the cross plate. When the third electric actuator 18 pushes the constraint cylinder 19 to its lowest position, the roller 20 abuts against the cleaning rods 22, and all the cleaning rods 22 close together. Together, they form a cylinder with the same outer diameter as the rotating column 17; when the third electric push rod 18 raises the constraint cylinder 19, the roller 20 abuts against the folding rod 21, the cleaning rod 22 loses the constraint of the constraint cylinder 19, and opens outward under the action of the return coil spring until the cleaning rod 22 and the folding rod 21 form a right angle, and the brush on the cleaning rod 22 faces the bottom. When the second motor 16 drives the rotating column 17 to rotate, the cleaning rod 22 begins to rotate, and the brush cleans the bottom surface of the tank. The main motor drives the square shaft 5 to rotate, expanding the cleaning range of the brush on the cleaning rod 22.

[0020] The cleaning assembly includes several folding rods 21 and a number of cleaning rods 22 equal to the number of folding rods 21. The folding rods 21 are rotatably mounted on the end of the rotating column 17 away from the lifting platform 15. A return spring is provided at the junction of the folding rod 21 and the rotating column 17. The folding rods 21 are evenly distributed in a ring. A cleaning rod 22 is rotatably mounted on the end of each folding rod 21 away from the rotating column 17. A return spring is provided at the junction of the cleaning rod 22 and the folding rod 21. A brush is provided on one side of each cleaning rod 22. Several rollers 20 are rotatably mounted on the bottom of the constraint cylinder 19, the number of rollers 20 being the same as the number of folding rods 21. The rollers 20 block the folding rods 21 or cleaning rods 22. The rotating column 17 has openings corresponding to the junction of each folding rod 21. An arc-shaped notch 23 is formed. When the third electric actuator 18 continues to raise the constraint cylinder 19, the folding rod 21 loses the constraint of the constraint cylinder 19 and opens outward under the action of the return coil spring. At this time, the brush on the cleaning rod 22 faces outward, and the brush cleans the side of the tank. As the folding rod 21 flips outward, the depth of the arc-shaped notch 23 gradually increases. Under the action of the tension spring 25, the inner sliding rod 24 slides against the arc-shaped notch 23, and the locking block 26 is inserted into the locking groove, so that the folding rod 21 and the cleaning rod 22 form a fixed connection and cannot rotate relative to each other. Even during the rotation, the cleaning rod 22 will not be affected by centrifugal force and deflect outward, ensuring that the brush on the cleaning rod 22 faces outward, so as to achieve the effect of cleaning the side of the tank.

[0021] Each folding rod 21 has an inner sliding rod 24 slidably mounted inside. A tension spring 25 is also installed between the inner sliding rod 24 and the interior of the folding rod 21. The end of the inner sliding rod 24 away from the cleaning rod 22 extends out of the folding rod 21 and slides in contact with the arc-shaped notch 23. A locking block 26 is provided at the end of the inner sliding rod 24 near the cleaning rod 22. A locking groove is opened on the rotating shaft of each cleaning rod 22. The locking block 26 cooperates with the locking groove. After the inner wall and bottom surface of the tank are cleaned, the third electric push rod 18 pushes the constraint cylinder 19 downward. The folding rod 21 retracts first, and the inner sliding rod 24 is then retracted by the arc-shaped notch 23. The notch 23 is squeezed into the folding rod 21, the locking block 26 leaves the locking groove, and the cleaning rod 22 retracts in succession. The constraint cylinder 19 scrapes off the water stains attached to the outer wall of the folding rod 21. When the cleaning rod 22 is closed into a cylinder with the same outer diameter as the rotating column 17, it is convenient for the operator to rinse the concentrated brushes. The outside of the cleaning rod 22 is also easier to clean. Through the setting of the cleaning components, the inner wall and bottom surface of the tank can be cleaned by opening the folding rod 21 and the cleaning rod 22. The closed folding rod 21 and the cleaning rod 22 are easier to clean, which solves the technical problem of cleaning equipment being difficult to clean.

[0022] The working principle of this invention is as follows: The operator pushes the cleaning equipment above the tank to be cleaned, and uses the control system to drive the moving module 3 to move on the guide rail 2. The moving module 3 can also control the rotation of the first housing 4. The lifting component and the cleaning component enter the tank at the same time to prepare for cleaning. The operator uses cable ties to fix the nozzle to the moving module 3, and sends water to the nozzle through the water pipe. The water is sprayed onto the inner wall of the tank through the nozzle.

[0023] When the height of the lifting platform 15 needs to be controlled, the control system energizes the first motor 7, which drives the worm gear 8 to rotate. The worm gear 8 drives the worm wheel 9 to rotate, and the worm wheel 9 drives the drive gear 10 to rotate synchronously. The drive gear 10 drives the first driven gear 11 and the second driven gear 12 to rotate. Since the meshing positions of the first driven gear 11 and the second driven gear 12 are opposite to those of the drive gear 10, the first driven gear 11 and the second driven gear 12 rotate at the same speed and in the same direction. Then, through the fixed block, the first electric push rod 13 and the second electric push rod 14 swing, thereby driving the lifting platform 15 to rise and fall. Under the drive of the first motor 7 and the first electric push rod 13 and the second electric push rod 14, the lifting platform 15 can be controlled to move to a suitable position so that the cleaning components can clean the tank.

[0024] The height between the two fixed blocks is the same as the height of the two transition holes on the lifting platform 15. During operation, the control system controls the first electric push rod 13 and the second electric push rod 14 to extend or retract by the same distance at the same time, keeping the axes of the first electric push rod 13 and the second electric push rod 14 parallel. The square shaft 5, the first electric push rod 13, the second electric push rod 14 and the lifting platform 15 form a parallel four-bar linkage. No matter how the first electric push rod 13 and the second electric push rod 14 swing, the lifting platform 15 is always parallel to the bottom surface of the tank.

[0025] When the third electric push rod 18 pushes the constraint cylinder 19 to its lowest position, the roller 20 abuts against the cleaning rod 22, and all the cleaning rods 22 come together to form a cylinder with the same outer diameter as the rotating column 17. When the third electric push rod 18 raises the constraint cylinder 19, the roller 20 abuts against the folding rod 21, and the cleaning rod 22 loses the constraint of the constraint cylinder 19 and opens outward under the action of the return coil spring until the cleaning rod 22 and the folding rod 21 form a right angle. The brush on the cleaning rod 22 faces the bottom. When the second motor 16 drives the rotating column 17 to rotate, the cleaning rod 22 begins to rotate, and the brush cleans the bottom surface of the tank. The main motor drives the square shaft 5 to rotate, expanding the cleaning range of the brush on the cleaning rod 22.

[0026] When the third electric actuator 18 continues to raise the constraint cylinder 19, the folding rod 21 loses the constraint of the constraint cylinder 19 and opens outward under the action of the return coil spring. At this time, the brush on the cleaning rod 22 faces outward, and the brush cleans the side of the tank. As the folding rod 21 flips outward, the depth of the arc-shaped notch 23 gradually increases. Under the action of the tension spring 25, the inner sliding rod 24 slides along the arc-shaped notch 23, and the locking block 26 is inserted into the locking groove, so that the folding rod 21 and the cleaning rod 22 form a fixed connection and cannot rotate relative to each other. Even during the rotation, the cleaning rod 22 will not be affected by centrifugal force and deflect outward, ensuring that the brush on the cleaning rod 22 faces outward, thus achieving the effect of cleaning the side of the tank.

[0027] After the inner wall and bottom of the tank are cleaned, the third electric push rod 18 pushes the constraint cylinder 19 downwards, the folding rod 21 retracts first, the inner sliding rod 24 is squeezed into the folding rod 21 by the arc-shaped notch 23, the locking block 26 leaves the locking groove, and the cleaning rod 22 retracts in turn. The constraint cylinder 19 scrapes off the water stains attached to the outer wall of the folding rod 21. When the cleaning rod 22 is closed into a cylinder with the same outer diameter as the rotating column 17, it is convenient for the operator to rinse the concentrated brushes. The outside of the cleaning rod 22 is also easier to clean. Through the setting of the cleaning components, the inner wall and bottom of the tank can be cleaned by opening the folding rod 21 and the cleaning rod 22. The closed folding rod 21 and the cleaning rod 22 are easier to clean, which solves the technical problem of cleaning equipment being difficult to clean.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tank inner wall cleaning device for dairy product processing, characterized in that: It includes a pair of side supports (1), a pair of guide rails (2), a moving module (3), a square shaft (5), a lifting assembly, and a cleaning assembly. The pair of side supports (1) are equipped with casters. The pair of guide rails (2) are installed above the pair of side supports (1). The moving module (3) is slidably installed on the pair of guide rails (2). A first housing (4) is rotatably installed on the moving module (3). A main motor is installed in the first housing (4). The square shaft (5) is rotatably connected to the first housing (4) and connected to the motor shaft of the main motor. The lifting assembly is installed at one end of the square shaft (5) away from the first housing (4). The other end of the lifting assembly is connected to a lifting platform (15). The cleaning assembly is installed on the lifting platform (15).

2. The tank inner wall cleaning equipment for dairy product processing according to claim 1, characterized in that: The lifting assembly includes a first electric push rod (13) and a second electric push rod (14). The square shaft (5) is hollow. Two fixed blocks are rotatably installed on the side of the square shaft (5) away from the first housing (4). The two fixed blocks are arranged opposite to each other. The first electric push rod (13) and the second electric push rod (14) are respectively installed on the two fixed blocks. The installation height of the first electric push rod (13) is higher than the installation height of the second electric push rod (14). The first electric push rod (13) and the second electric push rod (14) are connected to a control system through a circuit. A first driven gear (11) is connected to the fixed block connected to the first electric push rod (13) at the junction with the square shaft (5). A second driven gear (12) is connected to the fixed block connected to the second electric push rod (14) at the junction with the square shaft (5).

3. The tank inner wall cleaning equipment for dairy product processing according to claim 2, characterized in that: The drive gear (10) is rotatably mounted inside the square shaft (5). The drive gear (10) meshes with the first driven gear (11) and the second driven gear (12). A second housing (6) is provided on the outside of the square shaft (5). A first motor (7) is installed inside the second housing (6). The first motor (7) is connected to the control system circuit. A worm gear (8) is connected to the motor shaft of the first motor (7). The worm gear (8) is rotatably mounted inside the square shaft (5). A worm wheel (9) is integrally provided in the middle of the drive gear (10). The worm wheel (9) meshes with the worm gear (8).

4. The tank inner wall cleaning equipment for dairy product processing according to claim 2, characterized in that: The lifting platform (15) is provided with adapter holes on both sides. The two adapter holes are at different heights. The piston rods of the first electric push rod (13) and the second electric push rod (14) are rotatably connected to the two adapter holes respectively. The lifting platform (15) is equipped with a second motor (16). The second motor (16) is connected to the control system circuit. The cleaning component is connected to the motor shaft of the second motor (16).

5. A tank inner wall cleaning device for dairy product processing according to claim 4, characterized in that: The cleaning assembly includes a rotating column (17), a third electric push rod (18), and a constraint cylinder (19). The rotating column (17) is rotatably connected to the lifting platform (15). The third electric push rod (18) is located inside the rotating column (17). A slide rail is provided inside the rotating column (17). The constraint cylinder (19) is sleeved on the outside of the rotating column (17). A cross plate is provided on the top of the constraint cylinder (19). The cross plate is slidably connected to the slide rail. The piston rod of the third electric push rod (18) is connected to the cross plate.

6. The tank inner wall cleaning equipment for dairy product processing according to claim 5, characterized in that: The cleaning assembly includes several folding rods (21) and the same number of cleaning rods (22) as the folding rods (21). Several folding rods (21) are rotatably mounted on the end of the rotating column (17) away from the lifting platform (15). A return spring is provided at the junction of the folding rod (21) and the rotating column (17). Several folding rods (21) are evenly distributed in a ring. A cleaning rod (22) is rotatably mounted on the end of each folding rod (21) away from the rotating column (17). A return spring is provided at the junction of the cleaning rod (22) and the folding rod (21). A brush is provided on one side of each cleaning rod (22).

7. A tank inner wall cleaning device for dairy product processing according to claim 6, characterized in that: The bottom of the constraint cylinder (19) is rotatably equipped with several rollers (20). The number of rollers (20) is the same as the number of folding rods (21). The rollers (20) block the folding rods (21) or the cleaning rods (22). The rotating column (17) has an arc-shaped notch (23) at the position where each folding rod (21) is connected.

8. A tank inner wall cleaning device for dairy product processing according to claim 7, characterized in that: Each of the folding rods (21) has an inner sliding rod (24) slidably disposed inside. A tension spring (25) is also disposed between the inner sliding rod (24) and the interior of the folding rod (21). The end of the inner sliding rod (24) away from the cleaning rod (22) extends out of the folding rod (21). The inner sliding rod (24) slides in contact with the arc-shaped notch (23). A locking block (26) is disposed at the end of the inner sliding rod (24) close to the cleaning rod (22). A locking groove is provided on the rotating shaft of each cleaning rod (22). The locking block (26) cooperates with the locking groove.

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