External washing machine

Abstract

The invention discloses an external washing machine which is used for washing the outer wall of a barreled water barrel and comprises an outer box body, and a feeding cabin, a scrubbing cabin and a flushing cabin which are communicated are sequentially formed in the outer box body; the scrubbing cabin is used for spraying and scrubbing the barrel; a feeding port is formed in the feeding cabin, and a discharging port is formed in the flushing cabin; in order to prevent liquid from splashing out in the cleaning process, a first splash-proof shell and a second splash-proof shell are correspondingly arranged at the feeding port and the discharging port respectively. The first splash-proof shell comprises a first inclined bottom surface arranged at the bottom; the second splash-proof shell comprises a second inclined bottom surface arranged at the bottom; the feeding bin, the scrubbing bin and the flushing bin are each provided with a water drainage pipe, and the water drainage pipes are used for discharging cleaning liquid collected in the feeding bin, the scrubbing bin and the flushing bin. According to the technical scheme, cleaning liquid is prevented from splashing outwards, and the environment outside equipment is guaranteed to be dry.

Description

Technical Field

[0001] This invention relates to the field of bottled water cleaning equipment technology, and more particularly to an external washing machine. Background Technology

[0002] Bottled water barrels (usually made of PC material) typically require cleaning of their outer walls during recycling. Existing cleaning processes usually involve spraying and brushing to remove surface dust, stains, and other contaminants, ensuring the external hygiene of the bottled water during storage and transportation, and meeting relevant food safety requirements.

[0003] In some existing technologies, the feed and discharge ports of external washing machines are usually open. During high-pressure spraying and brushing, the cleaning liquid is very easy to splash out from these openings. This not only wastes water resources, but also makes the work site slippery and polluted, accumulates bacteria over time, affects the overall hygiene environment of the workshop, and seriously increases the additional site cleaning and maintenance costs. Summary of the Invention

[0004] The purpose of this invention is to provide an external washing machine that prevents cleaning fluid from splashing outwards and ensures that the external environment of the equipment remains dry.

[0005] To achieve this objective, the present invention adopts the following technical solution: An external washing machine for cleaning the outer wall of bottled water barrels includes an outer casing, in which a feeding chamber, a brushing chamber, and a rinsing chamber are sequentially formed; the brushing chamber is used for spraying and brushing the barrels. The feeding chamber has a feeding port and the rinsing chamber has a discharging port; to prevent liquid from splashing out during the cleaning process, a first anti-splash housing and a second anti-splash housing are respectively provided at the feeding port and the discharging port. The first splash-proof housing includes a first inclined bottom surface at the bottom, the lowest point of the first inclined bottom surface is connected to the edge of the feed chamber, and the first inclined bottom surface is used to return the splashed cleaning fluid to the feed chamber. The second splash-proof housing includes a second inclined bottom surface located at the bottom, the lowest point of which is connected to the edge of the flushing chamber. The second inclined bottom surface is used to return the splashed cleaning fluid to the flushing chamber. The feeding chamber, the scrubbing chamber, and the rinsing chamber are all equipped with drain pipes, which are used to discharge the cleaning liquid collected in the feeding chamber, the scrubbing chamber, and the rinsing chamber, respectively.

[0006] In one specific embodiment, the first splash-proof housing is tapered on the side away from the feed chamber; the second splash-proof housing is also tapered on the side away from the flushing chamber.

[0007] In one specific embodiment, the feeding chamber, the brushing chamber, and the rinsing chamber are each provided with at least one maintenance window; each maintenance window is provided with a metal frame, and a maintenance door is hinged to the metal frame, and the surface of the lower frame of the metal frame is inclined downward toward the inside of the outer casing.

[0008] In one specific embodiment, the access door is hinged to the metal frame via at least one external hinge; The external hinge includes a pair of mounting blocks, a first pivot, and a connector; The connector includes a bent portion and a mounting portion for fixed connection. The mounting block is disposed on the inner side of the metal frame. The two ends of the first rotating shaft are rotatably engaged with the mounting block. The bent part is fixedly connected to the first rotating shaft. The mounting part is used to connect the inspection door. The angle between the bent part and the inner side of the metal frame is an acute angle so that the inspection door is installed close to the inner side of the metal frame.

[0009] In one specific embodiment, the external hinge further includes a limiting abutment member; The limiting abutment includes a connecting part, a bending part, and an abutment part that are fixedly connected in sequence; The connecting part is fixed to the mounting part, and the abutting part is used to limit the engagement with the outer side of the metal frame.

[0010] In one specific embodiment, a brush cylinder assembly is provided inside the scrubbing chamber; The brush cylinder assembly includes a first brush group, a second brush group, a horizontal brush cylinder, a first motor, a second motor, and a transmission assembly for driving the horizontal brush cylinder to rotate. Both the first brush group and the second brush group include multiple vertically arranged vertical brush cylinders; the first brush group and the second brush group are arranged opposite to each other and can rotate in opposite directions; the first brush group and the second brush group are used together to clean the barrel body and barrel opening; The horizontal brush tube is used to scrub the bottom of the bucket; The first motor drives multiple vertical brush cylinders of the first brush group respectively via gear transmission; The second motor drives multiple vertical brush cylinders of the second brush assembly via gear transmission. The transmission assembly includes a first bevel gear, a second bevel gear shaft, a first bearing seat, and a second bearing seat. The first bevel gear is fixedly installed at the lower end of the vertical brush cylinder. The second bevel gear shaft is installed through the first bearing seat, and its end is provided with a second bevel gear that meshes with the first bevel gear to transmit torque to the lateral direction. The rotating shaft of the lateral brush cylinder is installed through the second bearing seat and connected to the second bevel gear shaft through a chain drive mechanism, thereby causing the lateral brush cylinder to rotate.

[0011] In one specific embodiment, a pair of parallel guide rods are also provided inside the brushing chamber. The guide rods are located on both sides of the transverse brush cylinder and between the first brush group and the second brush group. The height of the bristles of the transverse brush cylinder is higher than the position of the guide rods. The guide rods are used to assist in the conveying and limiting of the barrel.

[0012] In one specific embodiment, the feeding chamber is provided with a barrel-pushing assembly; the barrel-pushing assembly includes a third motor, a second rotating shaft, and multiple pushing rods; The third motor is connected to the second rotating shaft via a torque limiter and is used to drive the second rotating shaft to rotate; a plurality of the material feeding rods are fixedly installed around the second rotating shaft, and the material feeding rods are used to transport the bucket to the washing chamber and drive the bucket to move along the direction of the guide rod.

[0013] In one specific embodiment, the flushing chamber is equipped with a spray washing assembly; The spray washing assembly includes multiple horizontally arranged nozzles near the barrel opening and multiple vertically arranged nozzles on the barrel body; the nozzles at the barrel opening are used for high-pressure rinsing of the barrel opening, and the nozzles on the barrel body are used for high-pressure rinsing of the barrel body.

[0014] In one specific embodiment, the flushing chamber is further provided with a set of symmetrically arranged limiting components; The limiting component includes a guide, a vertical rod, and a mounting base; The mounting base is fixed relative to the flushing chamber, the vertical rod is inserted into the mounting base, and the mounting base is provided with a first locking element for locking the vertical rod; The guide component includes a guide portion and a fixing portion that are fixedly connected and vertically arranged. The guide portion is used to limit and guide the direction of bucket conveying. The fixing portion is inserted into the vertical rod, and the vertical rod is provided with a second locking member for locking the fixing portion.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The technical solution of this invention involves setting a first splash-proof shell and a second splash-proof shell with inclined bottom surfaces at the inlet and outlet of the outer casing, respectively. The lowest point of the first inclined bottom surface is connected to the edge of the inlet chamber, and the lowest point of the second inclined bottom surface is connected to the edge of the flushing chamber. This structure ensures that even if a small amount of cleaning fluid splashes out from the inlet and outlet, it will automatically flow back into the corresponding inlet or flushing chamber along the inclined bottom surface, where it will be collected and discharged by the drain pipes at the bottom of each chamber, fundamentally preventing liquid leakage. Therefore, this solution, while ensuring normal cleaning function, can significantly maintain the dryness and cleanliness of the surrounding environment, avoiding site pollution and resource waste. Attached Figure Description

[0016] 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.

[0017] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the external washing machine of the present invention; Figure 2 for Figure 1 Enlarged view of part A in the image; Figure 3 This is a cross-sectional structural schematic diagram of an embodiment of the external washing machine of the present invention; Figure 4 This is a schematic diagram of one embodiment of the external washing machine structure of the present invention; Figure 5 for Figure 4 Enlarged view of part B in the image; Figure 6 This is a partial structural diagram of one embodiment of the external washing machine of the present invention.

[0019] Illustration: 100, External washing machine; 11a. Feeding chamber; 110. Bucket-pulling assembly; 111. Third motor; 112. Second rotating shaft; 113. Feeding rod; 114. Torque limiter; 12a. Washing chamber; 120. Brush cylinder assembly; 121. First brush assembly; 122. Second brush assembly; 123. Horizontal brush cylinder; 124. First motor; 125. Second motor; 126. Transmission assembly; 1261. First bevel gear; 1262. Second bevel gear shaft; 1263. First shaft seat; 1264. Second shaft seat; 128. Guide rod; 13a. Washing chamber; 130. Spray washing assembly; 131. Drum opening spray nozzle; 132. Drum body spray nozzle; 133. Drum opening splash guard; 134. Limiting component; 341. Guide component; 341a. Guide part; 341b. Fixing part; 342. Vertical rod; 343. Mounting base; 344. First locking element; 345. Second locking element; 140. First splash-proof housing; 141. First inclined bottom surface; 150. Second splash-proof housing; 151. Second inclined bottom surface; 160. Inspection window; 161. Metal frame; 162. Inspection door; 163. External hinge; 631. Mounting block; 632. First rotating shaft; 633. Connector; 6331. Bending part; 6332. Mounting part; 634. Limiting and abutting part; 6341. Connecting part; 6342. Bending part; 6343. Abutting part. Detailed Implementation

[0020] To make the technical objectives, features, and advantages of the present invention more apparent and understandable, 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 embodiments described below 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.

[0021] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0022] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] This invention provides an external washing machine 100.

[0024] Please see Figures 1 to 6 The external washing machine 100 is used to clean the outer wall of bottled water barrels. It includes an outer casing, in which a feeding chamber 11a, a brushing chamber 12a, and a rinsing chamber 13a are sequentially formed. The brushing chamber 12a is used for spraying and brushing the barrels. The feeding chamber 11a has a feeding port and the rinsing chamber 13a has a discharging port; to prevent liquid from splashing out during the cleaning process, a first anti-splash housing 140 and a second anti-splash housing 150 are respectively provided at the feeding port and the discharging port. The first splash-proof housing 140 includes a first inclined bottom surface 141 at the bottom, the lowest point of the first inclined bottom surface 141 is connected to the edge of the feed chamber 11a, and the first inclined bottom surface 141 is used to return the splashed cleaning liquid to the feed chamber 11a. The second splash-proof housing 150 includes a second inclined bottom surface 151 at the bottom, the lowest point of the second inclined bottom surface 151 is connected to the edge of the flushing chamber 13a, and the second inclined bottom surface 151 is used to return the splashed cleaning fluid to the flushing chamber 13a. The feeding chamber 11a, the brushing chamber 12a and the rinsing chamber 13a are all equipped with drain pipes, which are used to discharge the cleaning liquid collected in the feeding chamber 11a, the brushing chamber 12a and the rinsing chamber 13a respectively.

[0025] It is understood that the technical solution of this embodiment provides a first splash-proof shell 140 and a second splash-proof shell 150 with inclined bottom surfaces at the inlet and outlet of the outer casing, respectively. The lowest point of the first inclined bottom surface 141 is connected to the edge of the inlet chamber 11a, and the lowest point of the second inclined bottom surface 151 is connected to the edge of the rinsing chamber 13a. This structure ensures that even if a small amount of cleaning fluid splashes out from the inlet and outlet, it will automatically flow back into the corresponding inlet chamber 11a or rinsing chamber 13a along the inclined bottom surface, and then be collected and discharged by the drain pipes at the bottom of each chamber, fundamentally preventing liquid leakage. Therefore, this solution can significantly maintain the dryness and cleanliness of the surrounding environment while ensuring normal cleaning function, avoiding site pollution and resource waste.

[0026] Specifically, the outer casing is a metal structure that primarily provides support and enclosure. The feeding chamber 11a, the washing chamber 12a, and the rinsing chamber 13a are sequentially arranged and interconnected areas corresponding to different functions. The connections between the chambers include openings in the partitions between adjacent chambers to allow water buckets to pass through, or an open design without physical partitions, defined only by functional zoning. The washing chamber 12a is used for spraying and washing the buckets.

[0027] It should also be noted that, in this embodiment, the scrubbing chamber 12a has a spray nozzle disposed on the top of the chamber and near the side wall, and the spray nozzle is capable of spraying cleaning liquid at an angle onto the scrubbing components inside the scrubbing chamber 12a.

[0028] Preferably, a partition plate with an opening, only the size of the bucket, is provided between the scrubbing chamber 12a and the rinsing chamber 13a. This partition plate physically isolates the cleaning fluid in the scrubbing chamber 12a and the rinsing chamber 13a, preventing splashing, reducing secondary contamination of the bucket surface, and improving cleaning efficiency.

[0029] It should also be noted that, typically, a first conveying mechanism is provided between the first splash shield 140 and the feeding chamber 11a for loading the barrel; and a second conveying mechanism is provided between the rinsing chamber 13a and the second splash shield 150 for unloading the barrel.

[0030] Furthermore, in this embodiment, the dimensions of the inlet and outlet are typically slightly larger than the outer dimensions of the bucket to be cleaned, to ensure that the bucket passes through smoothly and to reduce splashing when tilted.

[0031] Furthermore, the first splash-proof housing 140 and the second splash-proof housing 150 can be specifically implemented as covers manufactured independently of the outer casing and then fixedly connected, or they can be extensions integrally bent into shape with the end plate of the outer casing. Their main body is an empty housing that at least surrounds the top, sides, and bottom of the inlet or outlet.

[0032] Specifically, when a small amount of cleaning fluid splashes from the chamber toward the inlet or outlet, it will be blocked by the first splash guard 140 and flow along its sloping bottom surface. Since the lowest point is connected to the interior of the chamber, the liquid will flow back to the inlet chamber 11a or the flushing chamber 13a under gravity, instead of dripping or splashing to the outside of the equipment.

[0033] In this embodiment, the drain pipe is used to collect and discharge the wastewater after cleaning. It can be that each compartment is independently connected to a drain pipe, or the drainage from each compartment can be collected through internal channels and discharged through one or more main drain pipes.

[0034] Please continue reading. Figure 1 and Figure 3 In a specific embodiment, to further prevent splashing, the first splash-proof housing 140 is tapered on the side away from the feed chamber 11a; the second splash-proof housing 150 is also tapered on the side away from the flushing chamber 13a.

[0035] It should be noted that the tapered design mainly refers to the portion of the shell that is more converging or smaller than the part near the connection between the shell and the compartment. This tapered structure can more effectively limit the diffusion path of droplets or foam that may be generated by high-speed water flow during the cleaning process, causing them to impact the inner wall of the splash-proof shell more concentratedly and thus be better guided back into the compartment.

[0036] Please see Figure 1 and Figure 2 In the technical solution of the present invention, the feeding chamber 11a, the brushing chamber 12a and the rinsing chamber 13a are each provided with at least one maintenance window 160; each maintenance window 160 is provided with a metal frame 161, and a maintenance door 162 is hinged on the metal frame 161, and the surface of the lower frame of the metal frame 161 is inclined downward toward the inside of the outer box.

[0037] It should be noted that the maintenance window 160 is an essential feature in the external washing machine 100. However, the splashing water around the maintenance door 162 of the maintenance window 160 also causes pollution to the production environment. In this embodiment, the lower frame is inclined to reduce the splashing and outflow of cleaning fluid. Furthermore, this design effectively complements the first splash-proof housing 140 and the second splash-proof housing 150 mentioned above, eliminating liquid leakage from the maintenance window 160 on the side wall of the equipment and playing a crucial auxiliary role in maintaining the overall dryness and cleanliness of the working environment.

[0038] It is understandable that, in order to make the inclined lower frame more effective, the access door 162 usually needs to be located close to the inside of the metal frame 161 so that the cleaning fluid adhering to the access door 162 can smoothly enter each compartment with the assistance of the lower frame.

[0039] Please continue reading. Figure 1 and Figure 2 The inspection door 162 is hinged to the metal frame 161 by at least one external hinge 163; The external hinge 163 includes a pair of mounting blocks 631, a first pivot 632, and a connector 633; The connector 633 includes a bent portion 6331 and a mounting portion 6332 for fixed connection. The mounting block 631 is disposed on the inner side of the metal frame 161. The two ends of the first rotating shaft 632 are rotatably engaged with the mounting block 631. The bent part 6331 is fixedly connected to the first rotating shaft 632. The mounting part 6332 is used to connect the inspection door 162. The angle between the bent part 6331 and the inner side of the metal frame 161 is an acute angle, so that the inspection door 162 is installed close to the inner side of the metal frame 161.

[0040] It is understood that when the mounting block 631 is positioned inside the metal frame 161, and the angle between the bent portion 6331 and the inner side of the metal frame 161 forms an acute angle, the access door 162 can penetrate deeper into the inner space of the frame compared to using a conventional hinge. This further enhances the overall splash-proof performance of the equipment.

[0041] Optionally, the upper edge of the metal frame 161 is formed with an inclined surface parallel to the lower edge.

[0042] Please continue reading. Figure 2 The external hinge 163 further includes a limiting abutment 634; the limiting abutment 634 includes a connecting part 6341, a bending part 6342 and an abutment part 6343 that are fixedly connected in sequence; the connecting part 6341 is fixed to the mounting part 6332, and the abutment part 6343 is used to limit and cooperate with the outer side of the metal frame 161.

[0043] It is understood that the bending portion 6342 is mainly used to provide elastic buffering force, and the abutment portion 6343 can effectively prevent the maintenance door 162 from being over-opened, so that the maintenance door 162 is stabilized at a fixed angle, reducing collisions, improving the stability and reliability of the door opening and closing, and helping the maintenance door 162 to continuously perform its anti-splash effect.

[0044] Preferably, the plane containing the connecting part 6341 and the abutting part 6343 is at an angle of 90 degrees, so that the inspection door 162 can open and close relative to the outer casing within a 90-degree range, reducing interference or impact on adjacent inspection doors 162.

[0045] Optionally, the abutment portion 6343 is fitted with a shock-absorbing rubber sleeve.

[0046] Please continue reading. Figures 1 to 6 In a specific embodiment of the present invention, a brush cylinder assembly 120 is provided inside the brushing chamber 12a; The brush cylinder assembly 120 includes a first brush group 121, a second brush group 122, a horizontal brush cylinder 123, a first motor 124, a second motor 125, and a transmission assembly 126 for driving the horizontal brush cylinder 123 to rotate. Both the first brush group 121 and the second brush group 122 include multiple vertically arranged vertical brush cylinders; the first brush group 121 and the second brush group 122 are arranged opposite to each other and can rotate in opposite directions; the first brush group 121 and the second brush group 122 are used to clean the barrel body and barrel opening. The horizontal brush cylinder 123 is used to scrub the bottom of the bucket; The first motor 124 is used to drive the multiple vertical brush cylinders of the first brush group 121 respectively through gear transmission; The second motor 125 is used to drive the multiple vertical brush cylinders of the second brush assembly 122 respectively via gear transmission; like Figure 5As shown, the transmission assembly 126 includes a first bevel gear 1261, a second bevel gear shaft 1262, a first bearing 1263, and a second bearing 1264. The first bevel gear 1261 is fixedly installed at the lower end of the vertical brush cylinder. The second bevel gear shaft 1262 is installed through the first bearing 1263, and its end is provided with a second bevel gear that meshes with the first bevel gear 1261 to transmit torque to the lateral direction. The rotating shaft of the lateral brush cylinder 123 is installed through the second bearing 1264 and connected to the second bevel gear shaft 1262 through a chain drive mechanism, thereby causing the lateral brush cylinder 123 to rotate.

[0047] Understandably, the arrangement of the first motor 124 and the second motor 125 improves the stability of the operation of the first brush group 121 and the second brush group 122. Compared with the scheme of using one motor to drive two brush groups, this scheme significantly improves the stability of the cleaning operation. Furthermore, in this scheme, the first motor 124 drives the transverse brush cylinder 123 to rotate through the transmission assembly 126, avoiding the need to set a separate motor at the bottom of the outer casing, simplifying the equipment layout, and reducing equipment manufacturing costs and energy consumption.

[0048] Please continue reading. Figure 4 In one specific embodiment, a pair of parallel guide rods 128 are also provided inside the brushing chamber 12a. The guide rods 128 are located on both sides of the transverse brush cylinder 123, and between the first brush group 121 and the second brush group 122. The bristles of the transverse brush cylinder 123 are higher than the position of the guide rods 128. The guide rods 128 are used to assist in the conveying and limiting of the bucket. It can be understood that the parallel arrangement of the guide rods 128 ensures that the bucket is conveyed stably along a straight line, preventing the bucket from tilting or jamming under the strong brushing force, and ensuring the continuity of equipment operation. It should also be noted that the guide rods 128 themselves do not have a conveying function; they can achieve auxiliary conveying under the friction of the brush cylinders.

[0049] Specifically, the staggered spacing of each vertical brush cylinder, in conjunction with the guide rod 128, can assist in the transportation of the bucket.

[0050] Please see Figure 4 In a specific embodiment, the feeding chamber 11a is provided with a barrel-pushing assembly 110; the barrel-pushing assembly 110 includes a third motor 111, a second rotating shaft 112, and a plurality of pushing rods 113; The third motor 111 is connected to the second rotating shaft 112 via a torque limiter 114 and is used to drive the second rotating shaft 112 to rotate; a plurality of the material-pulling rods 113 are fixedly installed around the second rotating shaft 112, and the material-pulling rods 113 are used to transport the bucket to the washing chamber 12a and drive the bucket to move along the direction of the guide rod 128.

[0051] It is understood that the bucket-feeding assembly 110 is used to automatically and orderly feed the water buckets to be cleaned. However, the bucket-feeding assembly 110 is usually the component most prone to jamming or malfunction. Therefore, the torque limiter 114 is designed to automatically slip or disengage when the torque of the bucket-feeding assembly 110 exceeds a preset value; it can also autonomously recover after the fault is cleared, thereby largely avoiding damage to the third motor 111, improving the reliability and safety of the equipment, and ensuring the continuity of efficient operation.

[0052] Please see Figure 4 and Figure 6 In a specific embodiment, the flushing chamber 13a is equipped with a spray washing assembly 130; The spray washing assembly 130 includes a plurality of horizontally arranged barrel mouth spray nozzles 131 close to the barrel opening and a plurality of vertically arranged barrel body spray nozzles 132; the barrel mouth spray nozzles 131 are used for high-pressure rinsing of the barrel opening and the barrel body spray nozzles 132 are used for high-pressure rinsing of the barrel body.

[0053] Understandably, setting the spray nozzles according to functional zones enables efficient, precise, and thorough high-pressure rinsing to remove residual impurities from the surface of the tank.

[0054] Preferably, there are two sets of the barrel spray nozzles 132, and the water flow from the two sets of barrel spray nozzles 132 can achieve cross-spraying.

[0055] Preferably, a splash guard 133 is provided on the outer periphery of the spray nozzle 131 at the barrel opening, which can further prevent the cleaning liquid from splashing out of the outlet.

[0056] Please continue reading. Figure 4 In a specific embodiment of the present invention, the flushing chamber 13a is further provided with a set of symmetrically arranged limiting components 134; The limiting component 134 includes a guide 341, a vertical rod 342, and a mounting base 343; The mounting base 343 is fixed relative to the flushing chamber 13a, the vertical rod 342 is inserted into the mounting base 343, and the mounting base 343 is provided with a first locking member 344 for locking the vertical rod 342. The guide member 341 includes a guide part 341a and a fixing part 341b that are fixedly connected and vertically arranged. The guide part 341a is used for limiting and guiding the direction of bucket conveying. The fixing part 341b is inserted into the vertical rod 342, and the vertical rod 342 is provided with a second locking member 345 for locking the fixing part 341b.

[0057] It is understood that the limiting component 134 is mainly designed to improve the adaptability of the size of the tub to be washed, thereby enhancing the applicability of the external washing machine 100. The limiting component 134 achieves adaptive adjustment of the tub height through the first locking member 344, and adaptive adjustment of the tub width through the second locking member 345. Both the first locking member 344 and the second locking member 345 can be locking screws or limiting pins.

[0058] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An external washing machine for washing the outer wall of a water barrel, characterized in that, The utility model provides a barrel cleaning device, including outer box body, the feeding cabin, the brushing cabin and the flush cabin that form in the outer box body are communicated in proper order, the brushing cabin is used for the spray and brushing of the bucket, The feeding cabin forms the feeding port and the flush cabin forms the discharge port, in order to prevent the liquid from splashing outside during the cleaning process, the feeding port and the discharge port are respectively provided with a first splash-proof shell and a second splash-proof shell, The first splash-proof shell includes a first inclined bottom surface provided on the bottom, the lowest point of the first inclined bottom surface is connected with the edge of the feeding cabin, and the first inclined bottom surface is used for returning the splashed cleaning liquid to the feeding cabin, The second splash-proof shell includes a second inclined bottom surface provided on the bottom, the lowest point of the second inclined bottom surface is connected with the edge of the flush cabin, and the second inclined bottom surface is used for returning the splashed cleaning liquid to the flush cabin, Wherein, the feeding cabin, the brushing cabin and the flush cabin are provided with a drain pipe, which is used for respectively discharging the collected cleaning liquid in the feeding cabin, the brushing cabin and the flush cabin.

2. The external washing machine according to claim 1, characterized in that, The side of the first splash-proof shell away from the feeding cabin is provided with a closed opening, and the side of the second splash-proof shell away from the flush cabin is also provided with a closed opening.

3. The external washing machine according to claim 1, wherein The feeding cabin, the brushing cabin and the flush cabin are respectively provided with at least one maintenance window, each maintenance window is provided with a metal frame, a maintenance door is hinged to the metal frame, and the surface of the lower frame of the metal frame is inclined downward towards the inside of the outer box body.

4. The external washing machine according to claim 3, characterized in that, The maintenance door is hinged to the metal frame through at least one external hinge. The external hinge includes a pair of mounting blocks, a first rotating shaft and a connecting piece. The connecting piece includes a fixedly connected bending part and a mounting part, The mounting blocks are arranged on the inner side of the metal frame, the two ends of the first rotating shaft are rotationally connected with the mounting blocks, the bending part is fixedly connected with the first rotating shaft, the mounting part is used for connecting the maintenance door, and the included angle between the bending part and the inner side of the metal frame is an acute angle, so that the maintenance door is installed close to the inner side of the metal frame.

5. The external washing machine according to claim 4, characterized in that, The external hinge further includes a limiting abutting piece. The limiting abutting piece includes a connecting part, a bending part and an abutting part which are sequentially fixedly connected. The connecting part is fixedly connected with the mounting part, and the abutting part is used for limiting cooperation with the outer side of the metal frame.

6. The external washing machine according to claim 1, wherein The brushing cabin is provided with a brush cylinder assembly. The brush cylinder assembly includes a first brush group, a second brush group, a horizontal brush cylinder, a first motor, a second motor and a transmission assembly for driving the horizontal brush cylinder to rotate. The first brush group and the second brush group each include a plurality of vertical brush cylinders arranged vertically, the first brush group and the second brush group are oppositely arranged and can rotate in opposite directions, and the first brush group and the second brush group cooperate to clean the barrel body and the barrel opening. The horizontal brush cylinder is used for brushing the barrel bottom. The first motor is used for driving the plurality of vertical brush cylinders of the first brush group through gear transmission. The second motor is used for driving the plurality of vertical brush cylinders of the second brush group through gear transmission. The transmission assembly comprises a first bevel gear, a second bevel gear shaft, a first shaft seat and a second shaft seat; the first bevel gear is fixedly installed at the lower end of the vertical brush cylinder, the second bevel gear shaft is installed through the first shaft seat, and the end thereof is provided with a second bevel gear engaged with the first bevel gear for transmitting torque to the transverse direction; the rotating shaft of the transverse brush cylinder is installed through the second shaft seat and connected with the second bevel gear shaft through a chain transmission mechanism, so that the transverse brush cylinder rotates.

7. The external washing machine according to claim 6, characterized in that, A pair of parallel guide rods are arranged in the brushing cabin, the guide rods are arranged on both sides of the transverse brush cylinder and located between the first brush group and the second brush group; the height of the bristles of the transverse brush cylinder is higher than the position of the guide rods, and the guide rods are used for assisting the conveying and limiting of the bucket.

8. The external washing machine according to claim 7, characterized in that, The feeding cabin is provided with a bucket pushing assembly; the bucket pushing assembly comprises a third motor, a second rotating shaft and a plurality of pushing rods; The third motor is connected with the second rotating shaft through a torque limiter for driving the second rotating shaft to rotate; a plurality of the pushing rods are fixedly installed around the second rotating shaft, and the pushing rods are used for conveying the bucket to the brushing cabin and driving the bucket to move along the guide rods.

9. The external washing machine according to claim 6, wherein The flushing cabin is provided with a spray washing assembly; The spray washing assembly comprises a plurality of bucket mouth spray washing nozzles arranged transversely and close to the bucket mouth and a plurality of bucket body spray washing nozzles arranged vertically; the bucket mouth spray washing nozzles are used for high-pressure flushing of the bucket mouth, and the bucket body spray washing nozzles are used for high-pressure flushing of the bucket body.

10. The external washing machine according to claim 9, characterized in that, The flushing cabin is further provided with a set of symmetrically arranged limiting assemblies; The limiting assembly comprises a guide piece, a vertical rod and a mounting seat; The mounting seat is fixed relative to the flushing cabin, the vertical rod is insertedly connected with the mounting seat, and the mounting seat is provided with a first locking piece for locking the vertical rod; The guide piece comprises a guide part and a fixed part which are fixedly connected and arranged vertically, the guide part is used for limiting and guiding the conveying direction of the bucket, and the fixed part is insertedly connected with the vertical rod, and the vertical rod is provided with a second locking piece for locking the fixed part.

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