Inner wall cleaning structure of pharmaceutical barrel
By designing an inner wall cleaning structure with an adjustable number of straight pipe holes, and using an electric push rod to drive the hollow disc and straight pipe assembly, the problem of cleaning shallow barrels was solved, achieving efficient cleaning of pharmaceutical barrels of different depths and reducing cleaning fluid waste.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI AOKEYUAN PHARM CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-08
AI Technical Summary
Existing technologies are ineffective at cleaning the inner walls of pharmaceutical containers with shallow depths, resulting in wasted cleaning solution and incomplete cleaning, thus limiting their applicability.
An internal wall cleaning structure with an adjustable number of straight pipe holes was designed. The hollow disc and straight pipe assembly are driven by an electric push rod, and the position of the straight pipe is adjusted according to the depth of the barrel. High-pressure cleaning fluid is used to achieve efficient cleaning.
It expands the scope of cleaning applications, effectively cleaning the inner walls of pharmaceutical barrels at different depths, reducing cleaning fluid waste and improving cleaning efficiency.
Smart Images

Figure CN224208747U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an inner wall cleaning structure for pharmaceutical barrels, belonging to the field of pharmaceutical equipment. Background Technology
[0002] In pharmaceutical production, cleaning pharmaceutical containers is a crucial step in ensuring drug quality and safety. An innovative and efficient cleaning method has emerged, utilizing an extended electric actuator to drive multiple perforated straight tubes deep into the container for cleaning. Once the electric actuator has positioned the perforated tubes at the designated location inside the container, the cleaning process begins. The cleaning solution is first supplied at high pressure to the perforated tubes via an external system. The high-pressure cleaning solution flows within the tubes and is rapidly sprayed out at high speed in a fan or columnar pattern from various nozzles. Due to the precise distribution of the nozzles, these high-speed jets of cleaning solution evenly impact the inner wall of the pharmaceutical container. Various drug residues and dirt adhering to the container wall are directly peeled off by the powerful impact of the high-speed jets, thus cleaning the inner wall of the pharmaceutical container. When dealing with shallower pharmaceutical containers, the upper part of the fixed-length straight tube will be on the outside of the container after insertion. At this point, the small holes on the outer surface of the upper end of the straight pipe will spray the cleaning fluid outside the bucket, which not only wastes the cleaning fluid but also fails to effectively clean the bucket wall, making this cleaning method unsuitable for shallow buckets and limiting its applicability. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an inner wall cleaning structure for pharmaceutical barrels to solve the problems mentioned in the background art. This utility model realizes the adjustment of the number of small holes on the surface of the straight pipe exposed to the outside according to the depth of the pharmaceutical barrel, thus expanding the scope of application.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an inner wall cleaning structure for a pharmaceutical barrel, comprising a hollow column, a valve mounted on the outer surface of the upper end of the hollow column, the valve being connected to a connecting pipe via a high-pressure hose, one end of the connecting pipe being closed, and a hollow disc mounted on the open end of the connecting pipe for mounting on the movable end of an electric push rod, the upper surface edge of the hollow disc having multiple equidistant vertical holes penetrating the hollow disc, a straight tube inserted into each vertical hole, the outer surface of the straight tube having multiple small holes, the lower end of the straight tube being closed, a rectangular tube mounted on the upper side of the vertical holes, the lower end of the rectangular tube being connected and fixed to the hollow disc, a piston mounted on the upper end of the straight tube, the piston being slidably mounted inside the rectangular tube, a U-shaped plate mounted on the upper surface of the piston, the U-shaped plate being secured to the rectangular tube, and a positioning screw threadedly connected to the end of the U-shaped plate away from the piston for limiting the relative position of the U-shaped plate and the rectangular tube.
[0005] Furthermore, a connecting rod is installed at the center of the upper surface of the hollow disc via multiple connecting screws, and the upper end of the connecting rod is installed at the movable end of the electric push rod.
[0006] Furthermore, a lower connecting plate is fixedly connected to the lower end of the connecting rod. A frustum is provided on the lower side of the lower connecting plate. The frustum is fixedly connected to the hollow plate. Multiple screw holes are equidistantly arranged in an annular pattern on the upper surface of the frustum. Multiple circular holes aligned with the screw holes are equidistantly arranged in an annular pattern on the upper surface of the lower connecting plate. The connecting screw passes through the circular holes and is threaded into the screw holes.
[0007] Furthermore, an upper connecting plate is installed at the upper end of the connecting rod, and the upper connecting plate is connected to the movable end of the electric push rod by multiple bolts.
[0008] Furthermore, the U-shaped plate has a threaded hole at the end away from the piston, and the positioning screw is threaded into the threaded hole.
[0009] Furthermore, a pipe fitting is installed on the outer surface of the hollow column, and a flange is installed at the end of the pipe fitting away from the hollow column.
[0010] Furthermore, a chassis is installed at the lower end of the hollow column, and multiple fixing holes are equidistantly spaced in a ring on the upper surface of the chassis.
[0011] The beneficial effects of this utility model are:
[0012] 1. Connect the hollow column to the liquid supply pipeline system and use a connecting rod to connect the hollow disc and the electric push rod. When the electric push rod extends, the structure formed by the hollow disc and multiple straight pipes moves downward, so that the straight pipes are inserted into the pharmaceutical barrel. After opening the valve, the cleaning fluid flows into the hollow disc through the hose. Then the cleaning fluid enters from the small hole in the straight pipe inside the hollow disc and is sprayed out from the small hole on the lower side of the straight pipe, so as to achieve high-pressure rinsing of the inner wall of the pharmaceutical barrel.
[0013] 2. Adjust the position of the straight tube along the vertical hole according to the depth of the pharmaceutical barrel, so that the position of the piston inside the rectangular tube changes. At this time, the relative position of the U-shaped plate and the rectangular tube changes. The rectangular tube and the piston cooperate with each other to prevent the straight tube from rotating at will, so that the row of small holes on the straight tube can face the inner wall of the pharmaceutical barrel. When the length of the straight tube under the hollow plate meets the requirements, use the positioning screw to limit the relative position of the U-shaped plate and the rectangular tube, thereby limiting the relative position of the straight tube and the hollow plate. This allows the straight tube to be inserted into pharmaceutical barrels of different depths. Since the small holes in the upper area of the straight tube do not spray cleaning fluid, it is convenient to clean shallow barrels, thus expanding the scope of application.
[0014] 3. Use connecting screws to install the connecting rod on the hollow disc. The connecting screws pass through the lower connecting disc and are connected to the frustum thread, thus assembling the connecting rod and the hollow disc. This also locally increases the thickness of the part of the hollow disc where the connecting screws are installed, without increasing the wall thickness of the hollow disc. Attached Figure Description
[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0016] Figure 1 This is a schematic diagram of the inner wall cleaning structure of a pharmaceutical barrel according to the present invention;
[0017] Figure 2 This is another perspective view of the inner wall cleaning structure of a pharmaceutical barrel according to the present invention;
[0018] Figure 3 This is a schematic diagram of the assembly of the connecting rod, hollow disc, and hollow column in the inner wall cleaning structure of a pharmaceutical barrel according to this utility model.
[0019] Figure 4 This is a schematic diagram of the assembly of the straight tube, piston, and U-shaped plate in the inner wall cleaning structure of a pharmaceutical barrel according to this utility model.
[0020] In the diagram: 1-Hollow column, 2-Pipe fitting, 3-Valve, 4-Chassis, 5-High-pressure hose, 6-Straight pipe, 7-Hollow disc, 8-Rectangular tube, 9-Positioning screw, 10-U-shaped plate, 11-Connecting rod, 12-Upper connecting disc, 13-Connecting pipe, 14-Connecting screw, 15-Lower connecting disc, 16-Frustum, 17-Vertical hole, 18-Small hole, 19-Piston, 20-Threaded hole. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] Please see Figures 1-3 This utility model provides a technical solution: an inner wall cleaning structure for a pharmaceutical barrel, including a hollow column 1, a valve 3 installed on the outer surface of the upper end of the hollow column 1, a pipe joint 2 installed on the outer surface of the hollow column 1, a flange installed at the end of the pipe joint 2 away from the hollow column 1, the pipe joint 2 facilitates the connection of the hollow column 1 to the liquid supply pipeline system, a base plate 4 is installed at the lower end of the hollow column 1, and multiple fixing holes are equidistantly arranged in a ring on the upper surface of the base plate 4, the fixing holes are used to install the base plate 4 at the required position, thereby restricting the position of the hollow column 1.
[0023] See Figures 1-3Valve 3 is connected to connecting pipe 13 via high-pressure hose 5. One end of connecting pipe 13 is closed, and a hollow disc 7 for mounting on the movable end of electric push rod is installed at the open end of connecting pipe 13. The lower end of connecting rod 11 is connected and fixed to lower connecting disc 15. A frustum 16 is provided on the lower side of lower connecting disc 15. Frustum 16 is connected and fixed to hollow disc 7. Multiple screw holes are equidistantly arranged in a ring on the upper surface of frustum 16. Multiple circular holes aligned with screw holes are equidistantly arranged in a ring on the upper surface of lower connecting disc 15. The connecting screw 14 passes through the round hole and is threaded into the screw hole. The upper connecting plate 12 is installed on the upper end of the connecting rod 11. The upper connecting plate 12 is connected to the movable end of the electric push rod by multiple bolts. The connecting rod 11 is installed on the hollow plate 7 by the connecting screw 14. The connecting screw 14 passes through the lower connecting plate 15 and is threaded into the frustum 16, thereby realizing the assembly of the connecting rod 11 and the hollow plate 7. It also achieves a local increase in the thickness of the part of the hollow plate 7 where the connecting screw 14 is installed, without increasing the wall thickness of the hollow plate 7.
[0024] See Figures 1-4 The hollow disc 7 has multiple vertical holes 17 equidistantly spaced in a ring along its upper surface edge, each penetrating the disc 7. A straight tube 6 is inserted into each vertical hole 17. Multiple small holes 18 are formed on the outer surface of the straight tube 6, with the lower end of the tube closed. A rectangular tube 8 is positioned above each vertical hole 17, its lower end fixed to the hollow disc 7. A piston 19 is mounted on the upper end of the straight tube 6, slidingly within the rectangular tube 8. A U-shaped plate 10 is mounted on the upper surface of the piston 19, engaging with the rectangular tube 8. A threaded hole 20 at the end of the U-shaped plate 10 away from the piston 19 is threaded with a positioning screw 9 to limit the relative position of the U-shaped plate 10 and the rectangular tube 8. By adjusting the position of the straight tube 6 along the vertical holes 17 according to the depth of the pharmaceutical container, the position of the piston 19 within the rectangular tube 8 changes. This alters the relative position of the U-shaped plate 10 and the rectangular tube 8, allowing the rectangular tube 8 and piston 19 to cooperate and prevent the straight tube 6 from rotating arbitrarily. A row of small holes 18 on the straight tube 6 faces the inner wall of the pharmaceutical barrel. When the length of the straight tube 6 under the hollow plate 7 meets the requirements, the positioning screw 9 is used to limit the relative position of the U-shaped plate 10 and the rectangular tube 8, thereby limiting the relative position of the straight tube 6 and the hollow plate 7. This allows the straight tube 6 to be inserted into pharmaceutical barrels of different depths. Since the small holes 18 in the upper area of the straight tube 6 do not spray cleaning fluid, it is convenient to clean shallow barrels, thus expanding the scope of application. The hollow column 1 is connected to the liquid supply pipeline system, and the hollow plate 7 and the electric push rod are connected by the connecting rod 11. When the electric push rod extends, the structure formed by the hollow plate 7 and multiple straight tubes 6 moves downward, allowing the straight tube 6 to be inserted into the pharmaceutical barrel. After opening the valve 3, the cleaning fluid flows into the hollow plate 7 through the hose. Then, the cleaning fluid enters from the small holes 18 in the straight tube 6 inside the hollow plate 7 and is sprayed out from the small holes 18 on the lower side of the straight tube 6, thus achieving high-pressure rinsing of the inner wall of the pharmaceutical barrel.
[0025] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A cleaning structure for the inner wall of a pharmaceutical barrel, comprising a hollow column (1), characterized in that: A valve (3) is installed on the outer surface of the upper end of the hollow column (1). The valve (3) is connected to a connecting pipe (13) via a high-pressure hose (5). One end of the connecting pipe (13) is closed. A hollow disc (7) for mounting on the movable end of an electric push rod is installed at the open end of the connecting pipe (13). Multiple vertical holes (17) penetrating the hollow disc (7) are equidistantly arranged in a ring at the edge of the upper surface of the hollow disc (7). A straight pipe (6) is inserted into the vertical hole (17). Multiple small holes (18) are opened on the outer surface of the straight pipe (6). 6) The lower end is closed. A rectangular tube (8) is provided on the upper side of the vertical hole (17). The lower end of the rectangular tube (8) is connected and fixed to the hollow plate (7). A piston (19) is installed on the upper end of the straight tube (6). The piston (19) is slidably installed in the rectangular tube (8). A U-shaped plate (10) is installed on the upper surface of the piston (19). The U-shaped plate (10) is stuck on the rectangular tube (8). A positioning screw (9) for limiting the relative position of the U-shaped plate (10) and the rectangular tube (8) is threaded to the end of the U-shaped plate (10) away from the piston (19).
2. The inner wall cleaning structure of a pharmaceutical barrel according to claim 1, characterized in that: A connecting rod (11) is installed at the middle of the upper surface of the hollow disc (7) by multiple connecting screws (14), and the upper end of the connecting rod (11) is installed at the movable end of the electric push rod.
3. The inner wall cleaning structure of a pharmaceutical barrel according to claim 2, characterized in that: The lower end of the connecting rod (11) is connected and fixed to a lower connecting plate (15). A frustum (16) is provided on the lower side of the lower connecting plate (15). The frustum (16) is connected and fixed to the hollow plate (7). Multiple screw holes are provided in an annular shape on the upper surface of the frustum (16). Multiple circular holes aligned with the screw holes are provided in an annular shape on the upper surface of the lower connecting plate (15). The connecting screw (14) passes through the circular holes and is threaded into the screw holes.
4. The inner wall cleaning structure of a pharmaceutical barrel according to claim 2, characterized in that: The upper end of the connecting rod (11) is equipped with an upper connecting plate (12), which is connected to the movable end of the electric push rod by multiple bolts.
5. The inner wall cleaning structure of a pharmaceutical barrel according to claim 1, characterized in that: The U-shaped plate (10) has a threaded hole (20) at the end away from the piston (19), and the positioning screw (9) is threaded into the threaded hole (20).
6. The inner wall cleaning structure of a pharmaceutical barrel according to claim 1, characterized in that: The hollow column (1) is fitted with a pipe joint (2) on its outer surface, and a flange is fitted at the end of the pipe joint (2) away from the hollow column (1).
7. The inner wall cleaning structure of a pharmaceutical barrel according to claim 6, characterized in that: The hollow column (1) is fitted with a base plate (4) at its lower end. The upper surface of the base plate (4) is provided with a plurality of fixing holes in an annular shape at equal intervals.