Water for injection delivery line cleaning apparatus

Abstract

The utility model relates to pharmaceutical equipment technical field discloses a kind of injection water conveying pipeline cleaning equipment, and the equipment includes water storage pipe, electric push rod, scrape dirty mechanism and spray mechanism;Electric push rod connects water storage pipe one end, and scrape dirty mechanism is fixed in another end.Scrape dirty mechanism includes motor, gear one, gear two, guide plate and linkage assembly;Motor drives gear one and gear two rotation, and the arc-shaped groove on gear two pushes the limiting column in linkage assembly, so that sliding rod is stretched out along the guide slot of guide plate radially, to drive scrape dirty plate to unfold and press against pipeline inner wall.Electric push rod drives equipment overall axial reciprocating motion, realizes scrape dirty, while spray mechanism water washing.The utility model is unfolded automatically by motor drive scrape dirty plate and realizes automation cleaning by cooperation electric push rod, and cleaning path is adjusted by knob, solve the problem that stubborn residual in pipeline inner wall is difficult to effectively physically scrape and clean comprehensively.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical equipment technology, and in particular to a cleaning device for water for injection delivery pipelines. Background Technology

[0002] Water for injection is a critical raw material in the pharmaceutical industry, and the cleanliness of its delivery pipelines directly affects the quality and safety of the final drug. To ensure sterility and prevent contamination, these pipelines require regular and rigorous cleaning and maintenance.

[0003] Currently, the industry commonly uses in-line cleaning (CIP) systems to clean water-for-injection pipelines. This method mainly relies on using cleaning agents and high-temperature water for injection to circulate and flush the pipeline at high speed, utilizing chemical dissolution and fluid shear force to peel off and remove contaminants.

[0004] However, for some physically adhered chemical residues or existing biofilms, simple chemical and hydraulic flushing methods are insufficient to completely remove them. These stubborn deposits remain on the inner walls of pipes, becoming a continuous source of contamination and posing a potential threat to production safety.

[0005] To address this issue, a cleaning method capable of applying stable and effective physical forces is needed. Existing manual or simple mechanical cleaning tools often suffer from uneven cleaning force, low automation, and difficulty in adapting to long-distance pipelines, failing to meet the pharmaceutical industry's requirements for efficient, controllable, and comprehensive cleaning processes.

[0006] Therefore, this utility model proposes a cleaning device for water for injection delivery pipelines to overcome the shortcomings of the prior art. Utility Model Content

[0007] To overcome the above deficiencies, this utility model provides a cleaning device for water-to-injection pipelines, which aims to improve the problem that some existing water-to-injection pipeline cleaning devices lack an effective physical scraping structure for stubborn residues adhering to the inner wall of the pipeline.

[0008] This utility model provides a cleaning device for water for injection delivery pipelines, including: a water storage pipe, an electric push rod, a scraping mechanism, and a linkage component.

[0009] The linkage component includes multiple sliding rods, each with a limit post fixed on it, and a scraper plate fixedly connected to one end of each sliding rod.

[0010] Furthermore, the electric push rod is connected to one end of the water storage pipe, and the scraping mechanism is fixedly connected to the other end of the water storage pipe away from the electric push rod; the scraping mechanism includes a guide plate, on which a motor is fixedly mounted, and the output shaft of the motor is fixedly connected to a gear one, which meshes with a gear two; the sliding rod is slidably engaged in a guide groove on the guide plate, and the gear two has an arc-shaped groove that slidably engages with the limiting post; the electric push rod is used to drive the water storage pipe and the entire scraping mechanism fixed thereon, so that the scraping plate reciprocates along the pipe axis after it is unfolded.

[0011] Preferably, the water for injection pipeline cleaning equipment further includes a spraying mechanism, which includes multiple nozzles fixed to the outer wall of the water storage pipe, and a hose with one end connected to the inside of the water storage pipe and the other end used to connect to an external water source.

[0012] Preferably, the scraping mechanism is rotatably connected to the water storage pipe via a knob, which is used to lock the scraping mechanism after it is rotated to a preset angle, so as to adjust the cleaning path of the scraping blade.

[0013] Preferably, the guide plate has a star-shaped radial structure, and the guide grooves are evenly distributed along the radial direction of the guide plate to guide the sliding rod to perform radial extension and retraction movements.

[0014] Preferably, the second gear is rotatably disposed at the center of the guide plate, and the motor is eccentrically disposed on the guide plate, so that the first gear and the second gear are transmitted through external meshing.

[0015] Preferably, the trajectory curve of the arc-shaped groove is designed so that when the second gear rotates, pushing the limiting post can synchronously drive all the sliding rods to produce the same radial displacement along their respective guide grooves.

[0016] Preferably, the scraper is an arc-shaped plate, and the arc of the scraper matches the arc of the inner wall of the conveying pipe to be cleaned, so as to ensure that it can fit tightly during scraping.

[0017] Preferably, the water storage pipe is a hollow pipe, the flexible hose is connected to the end of the water storage pipe near the electric push rod, and the nozzles are distributed around the end of the water storage pipe near the scraping mechanism.

[0018] Preferably, the second gear has a through hole at its center, and the guide plate has a rotating shaft fixedly installed at its center to cooperate with it. The second gear achieves stable central rotation through this rotating shaft.

[0019] This utility model has the following beneficial effects: 1. This utility model solves the problem in the prior art of effectively physically scraping away firmly attached chemical residues on the inner wall of pipes by setting up an electric push rod drive device for axial reciprocating motion and configuring a scraping mechanism with a motor-driven scraper plate that expands radially. It achieves the technical effect of removing stubborn dirt and improving cleaning efficiency.

[0020] 2. This utility model, by setting up a linkage component, accurately converts the rotational motion of the motor into the synchronous radial extension motion of multiple scraper blades, enabling the scraper blades to automatically and tightly adhere to the inner wall of the pipe. This solves the problem in the prior art that the scraper blades cannot effectively adapt to the inner wall of the pipe and the cleaning is not thorough, achieving the technical effect of ensuring uniform scraping and improving the cleaning coverage.

[0021] 3. This utility model, by configuring a knob, enables the scraping mechanism to be rotatably adjusted and locked relative to the water storage pipe, allowing the scraping blade to cover different paths during repeated cleaning. This solves the problem that scraping cleaning in the prior art cannot achieve full coverage of the inner wall of the pipe, and achieves the technical effect of cleaning the inner wall of the pipe without dead angles and more thoroughly.

[0022] 4. This utility model, by setting up a spraying mechanism, enables the nozzle to spray water in real time to wash away the scraped chemical residue, which solves the problem of dirt retention or secondary pollution caused by relying solely on scraping in the prior art. It achieves the technical effect of timely flushing of dirt away from the pipe wall, reducing the pressure of subsequent water circulation cleaning, and reducing cleaning time and water consumption.

[0023] 5. This utility model achieves automatic expansion and contraction of the scraper blade through the coordinated operation of gears, arc grooves and limiting columns in the linkage component, solving the problems of complex structure and cumbersome operation of existing cleaning devices, and achieving the technical effect of compact structure, simple operation and high degree of automation. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a water-for-injection pipeline cleaning device proposed in this utility model; Figure 2 This is a schematic diagram of the structure of a hose for a water injection pipeline cleaning device proposed in this utility model; Figure 3 This is a schematic diagram of the structure of a guide plate for a water-to-injection pipeline cleaning device proposed in this utility model; Figure 4 This is a schematic diagram of the structure of gear 2 in a water injection pipeline cleaning device proposed in this utility model; Figure 5 This is a schematic diagram of the scraper blade of a cleaning device for water injection pipelines proposed in this utility model.

[0025] Legend: 1. Electric push rod; 2. Water storage pipe; 3. Scraping mechanism; 31. Motor; 32. Gear 1; 33. Guide plate; 34. Gear 2; 35. Linkage assembly; 351. Guide groove; 352. Sliding rod; 353. Scraping blade; 354. Arc groove; 355. Limiting post; 4. Spraying mechanism; 41. Spray head; 42. Knob; 43. Hose. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example: Reference Figures 1 to 5 This utility model provides a cleaning device for water for injection delivery pipelines, which aims to solve the problem in the prior art that there is no effective physical scraping structure for stubborn residues adhering to the inner wall of the delivery pipeline, and that it is difficult to achieve automated and comprehensive cleaning.

[0028] like Figure 1 As shown, the water for injection pipeline cleaning equipment includes a water storage pipe 2 and an electric push rod 1 connected to one end of the water storage pipe 2. A scraping mechanism 3 is fixedly connected to the other end of the water storage pipe 2. The electric push rod 1 is used to drive the water storage pipe 2 and the scraping mechanism 3 fixed thereon to reciprocate along the pipeline axis, thereby realizing the cleaning operation. A spraying mechanism 4 is also provided on the water storage pipe 2.

[0029] Reference Figure 1 , Figure 3 , Figure 4 and Figure 5 The scraping mechanism 3 includes a guide plate 33, on which a motor 31 is fixedly mounted. The output shaft of the motor 31 is fixedly connected to a gear 32, which meshes with a gear 34. The guide plate 33 has a star-shaped radial structure and is evenly provided with guide grooves 351 along its radial direction to guide the sliding. The scraping mechanism 3 also includes a linkage assembly 35, which includes multiple sliding rods 352. Each sliding rod 352 is slidably engaged in a guide groove 351. Each sliding rod 352 is fixed with a limit post 355. The gear 34 is provided with an arc-shaped groove 354 that slidably engages with the limit post 355. Each sliding rod 352 is fixedly connected to a scraping plate 353 at the end away from the guide plate 33. The scraping plate 353 is an arc-shaped plate, and its curvature matches the curvature of the inner wall of the conveying pipe to be cleaned.

[0030] Reference Figure 1 , Figure 3 , Figure 4 and Figure 5 The motor 31 is eccentrically mounted on the guide plate 33, and the second gear 34 is rotatably mounted at the center of the guide plate 33. The center of the second gear 34 has a through hole, and the center of the guide plate 33 is fixedly provided with a rotating shaft that cooperates with it. The second gear 34 achieves stable central rotation through the rotating shaft. The first gear 32 driven by the motor 31 and the second gear 34 are transmitted through external meshing. The sliding rod 352 of the linkage component 35 is slidably engaged in the guide groove 351 of the guide plate 33, and the limiting post 355 on the sliding rod 352 is slidably engaged in the arc groove 354 of the second gear 34. The trajectory curve of the arc groove 354 is designed so that when the second gear 34 rotates, pushing the limiting post 355 can synchronously drive all the sliding rods 352 to produce the same radial displacement along their respective guide grooves 351.

[0031] like Figure 1 As shown, the equipment also includes a spraying mechanism 4, which includes multiple nozzles 41 fixed to the outer wall of the water storage pipe 2, and a flexible hose 43 with one end connected to the inside of the water storage pipe 2 and the other end connected to an external water source. The water storage pipe 2 is a hollow pipe, and the flexible hose 43 is connected to the end of the water storage pipe 2 near the electric push rod 1. The nozzles 41 are distributed around the end of the water storage pipe 2 near the scraping mechanism 3. The scraping mechanism 3 is rotatably connected to the water storage pipe 2 via a knob 42, which is used to lock the scraping mechanism 3 after it is rotated to a preset angle.

[0032] The electric actuator 1 can be either a DC or AC actuator, featuring controllable stroke, stable thrust, and easy integration. The scraper blade 353 can be made of high-molecular polymer materials, such as polytetrafluoroethylene or ultra-high molecular weight polyethylene. These materials have a low coefficient of friction, good wear resistance, and strong chemical stability. The knob 42 adopts a ratchet and pawl structure. After each rotation adjustment, the scraper mechanism 3 can be precisely locked at the preset rotation angle position relative to the water storage pipe 2, thereby making the cleaning path of the scraper blade 353 in the next advance stroke misaligned with the previous one. The hose 43 is made of high-pressure corrosion-resistant material to ensure a continuous and stable delivery of cleaning water into the water storage pipe 2 during the cleaning process. The nozzle of the spray head 41 is designed as a cone or fan shape to form a high-pressure impact water flow. An elastic connection structure, such as a spring or rubber pad, can be provided between the scraper blade 353 and the sliding rod 352 to compensate for minor changes in the inner diameter of the pipe and avoid damage to the inner wall of the pipe.

[0033] The implementation principle of this application embodiment is as follows: Before the cleaning operation begins, the equipment is placed at the pipe inlet, and the motor 31 is started. The output shaft of the motor 31 drives the gear 32 to rotate. The gear 32 drives the gear 34 located at the center of the guide plate 33 to rotate through external meshing transmission. During the rotation of the gear 34, the arc groove 354 on it will push the limiting post 355 on the sliding rod 352. Under the force of the limiting post 355, the sliding rod 352 will extend outward radially along the guide groove 351 on the guide plate 33 until the scraper 353 fixedly connected at its end tightly presses against the inner wall of the conveying pipe, completing the preparation work before cleaning.

[0034] Then, the electric push rod 1 is activated, which pushes the water storage pipe 2 and the entire scraping mechanism 3 forward at a constant speed along the pipe axis. During the forward movement, the unfolded scraping blade 353 scrapes off the chemical residues adhering to the pipe wall. At the same time, external water enters the hollow water storage pipe 2 through the hose 43 and is sprayed out by the nozzle 41 at the front end of the water storage pipe 2, washing off the scraped residues. The hose 43 enters the pipe along with the equipment to achieve continuous water supply. After completing one cycle of cleaning, the entire scraping mechanism 3 can be rotated at an angle relative to the water storage pipe 2 and relocked by operating the knob 42. When the cleaning process is restarted, the cleaning path of the scraping blade 353 will be misaligned with the previous one. By repeating this misaligned cleaning process multiple times, and in conjunction with the continuous rinsing of the spray mechanism 4, the inner wall of the pipe is finally thoroughly cleaned.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cleaning device for a water injection pipeline, comprising a water storage pipe (2), an electric push rod (1) connected to one end of the water storage pipe (2), and a scraping mechanism (3), wherein the scraping mechanism (3) is fixedly connected to the other end of the water storage pipe (2) away from the electric push rod (1), the scraping mechanism (3) comprising a guide plate (33), a motor (31) fixedly mounted on the guide plate (33), a gear one (32) fixedly connected to the output shaft of the motor (31), and the gear one (32) meshing with a gear two (34); characterized in that The scraping mechanism (3) further includes a linkage component (35), which includes multiple sliding rods (352) that slide along the guide grooves (351) on the guide plate (33). A limit post (355) is fixed on the sliding rod (352), and an arc groove (354) that slides with the limit post (355) is provided on the gear (34). A scraping plate (353) is fixedly connected to one end of the sliding rod (352) away from the guide plate (33). The electric push rod (1) is used to drive the water storage pipe (2) and the entire scraping mechanism (3) fixed thereon to reciprocate along the pipe axis after the scraping plate (353) is unfolded.

2. The water for injection delivery pipe cleaning apparatus according to claim 1, characterized by, It also includes a spraying mechanism (4), which includes multiple nozzles (41) fixed to the outer wall of the water storage pipe (2) and a hose (43) with one end connected to the inside of the water storage pipe (2) and the other end used to connect to an external water source.

3. The water for injection delivery line cleaning apparatus of claim 1, wherein, The scraping mechanism (3) is rotatably connected to the water storage pipe (2) via a knob (42). The knob (42) is used to lock the scraping mechanism (3) after it is rotated to a preset angle, so as to adjust the cleaning path of the scraping blade (353).

4. The cleaning equipment for water-to-injection delivery pipelines according to claim 1, characterized in that, The guide plate (33) has a star-shaped radial structure, and the guide groove (351) is evenly opened along the radial direction of the guide plate (33) to guide the sliding rod (352) to perform radial extension and retraction.

5. The cleaning equipment for water-to-injection pipelines according to claim 1, characterized in that, The second gear (34) is rotatably disposed at the center of the guide plate (33), and the motor (31) is eccentrically disposed on the guide plate (33), so that the first gear (32) and the second gear (34) are transmitted through external meshing.

6. The cleaning equipment for water-to-injection pipelines according to claim 1, characterized in that, The trajectory curve of the arc groove (354) is designed so that when the gear two (34) rotates, the limiting post (355) can be pushed to synchronously drive all the sliding rods (352) to produce the same radial displacement along their respective guide grooves (351).

7. The cleaning equipment for water-to-injection pipelines according to claim 1, characterized in that, The scraper (353) is an arc-shaped plate, and the curvature of the scraper (353) matches the curvature of the inner wall of the conveying pipe to be cleaned, so as to ensure that it can fit tightly when scraping.

8. The cleaning equipment for water-to-injection pipelines according to claim 2, characterized in that, The water storage pipe (2) is a hollow pipe. The hose (43) is connected to the end of the water storage pipe (2) near the electric push rod (1). The nozzle (41) is distributed around the end of the water storage pipe (2) near the scraping mechanism (3).

9. The cleaning equipment for water-to-injection pipelines according to claim 5, characterized in that, The gear 2 (34) has a through hole at its center, and the guide plate (33) has a rotating shaft fixedly installed at its center to cooperate with it. The gear 2 (34) achieves stable central rotation through this rotating shaft.

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