Water bath sterilization cabinet random drop without pit circulating continuous system
By connecting the water pump to the sterilizer via a bend in the pipe, using an independent guide rail conveyor system, and an improved top spray system, the problems of inconvenient installation and uneven sterilization of water bath sterilizers have been solved, achieving simplified installation and improved sterilization effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU SHENNONG AUTOCLAVE
- Filing Date
- 2025-05-19
- Publication Date
- 2026-06-26
AI Technical Summary
Existing water bath sterilizers are inconvenient to install and maintain because the water pump and inlet pipe cannot be directly connected due to the height difference. Furthermore, the guide rail assembly inside the sterilization chamber has a large load, the conveying device is prone to damage, and the top spray system has uneven temperature problems.
The water pump outlet pipe is connected to the sterilizer inlet pipe by a bend pipe. Each guide rail group is equipped with an independent conveying device. The sterilization cart is driven by chain drive and lever assembly. The top spray system sprays the spray medium through the bottom of the sealed spray pipe with baffles. Spray support plates are set to improve uniformity.
This allows for the installation of the water bath sterilizer and water pump in the same location, simplifying installation and maintenance, extending the lifespan of the conveying device, and ensuring the uniformity and thoroughness of the sterilization effect.
Smart Images

Figure CN224404052U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to water bath sterilizer equipment, and more particularly to a water bath sterilizer with arbitrary drop and no pit-free continuous circulation system. Background Technology
[0002] Water bath sterilizers have advantages such as a wide temperature control range, minimal damage to items, a closed-loop system for the sterilization medium to prevent secondary contamination, and a hygienic and reliable sterilization process. They are widely used in the pharmaceutical industry for sterilizing various sizes of liquid preparations in glass bottles, plastic bottles, and soft bags, and can also be used in the food and cosmetic industries for sterilization.
[0003] Water bath sterilizers are typically installed in a pit within the operating environment; for ease of description, this location will be defined as the installation site. The water bath sterilizer is mounted on the installation site using a mounting base. When the water pump supplying water to the inlet pipe at the bottom of the water bath sterilizer is mounted on the installation site using a pump mounting base, the height difference between the inlet pipe and the outlet pipe of the pump prevents them from being directly connected by a straight pipe. The usual method is to dig a further pit within the existing pit to house the pump, thus bringing the inlet pipe and outlet pipe of the water bath sterilizer to the same height. Then, a straight pipe connects the outlet pipe of the pump to the inlet pipe at the bottom of the water bath sterilizer. Using this method, the installation and maintenance of the water pump are very inconvenient. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a water bath sterilizer system with simple structure and low optimization cost, which can install the water bath sterilizer and water pump on the same installation site, and can be installed at any height without a pit for continuous circulation.
[0005] To solve the above problems, the technical solution adopted by the present invention is: the water bath sterilizer with arbitrary drop and pitless continuous circulation system includes: a water bath sterilizer; the water bath sterilizer is installed on the installation site via a mounting base, and the water pump supplying water to the water inlet pipe at the bottom of the water bath sterilizer is installed on the installation site via a water pump mounting base, and there is a height difference between the water inlet pipe at the bottom of the water bath sterilizer and the water outlet pipe of the water pump. A matching bend is selected according to the height difference, and the water outlet pipe of the water pump is sealed and connected to the water inlet pipe at the bottom of the sterilizer via the bend.
[0006] The water bath sterilizer has two sets of guide rails arranged side-by-side inside its sterilization chamber. Previously, the sterilization carts on both sets of guide rails were driven by the same conveyor device, but this method suffers from high load and the conveyor device is prone to damage. Therefore, in this design, each set of guide rails has its own corresponding conveyor device; that is, each set of guide rails is equipped with a conveyor device that drives the sterilization cart on that set of guide rails to move along that set.
[0007] Furthermore, in the aforementioned water bath sterilizer with arbitrary drop and pitless continuous circulation system, the conveying device has the following structure: a chain drive with a drive device is installed at the bottom of the sterilization chamber of the water bath sterilizer; several lever assemblies for pushing the sterilization cart to move on the corresponding guide rail assembly are installed on the chain drive; the lever assembly includes: a support fixed to the chain of the chain drive; a roller is installed on the support through a roller shaft; and during the process of the lever assembly pushing the sterilization cart, only the roller on the lever assembly contacts the sterilization cart.
[0008] In a water bath sterilizer, if the space along the longitudinal length from the sterilization cart inlet to the outlet is relatively compact, the lever assembly on the chain drive is positioned such that when the sterilization carts are arranged closely together on their respective guide rails, one lever assembly blocks the front of the cart closest to the inlet, and another lever assembly blocks the rear of the cart closest to the outlet. There are no lever assemblies between adjacent carts. Conversely, if the space along the longitudinal length from the inlet to the outlet is relatively ample, the lever assembly on the chain drive is positioned such that when the sterilization carts are arranged sequentially on their respective guide rails, one lever assembly blocks the front of the cart closest to the inlet, and another lever assembly blocks the rear of the cart closest to the outlet. Additionally, there is a lever assembly between each pair of adjacent carts.
[0009] The drive device for the drive chain transmission is a geared motor. The motor shaft of the geared motor is connected to the sprocket shaft of the drive sprocket of the chain transmission through a torque limiter. When an overload problem occurs, the torque limiter is used to achieve the purpose of overload idling and protect the geared motor.
[0010] The sterilization chamber of the water bath sterilizer is equipped with a top spray system. This system eliminates temperature unevenness caused by the presence of cold air, further ensuring a clean sterilization environment. The top spray system is structured as follows: at least one spray tray is installed at the top of the sterilization chamber; pipelines supplying spray media to each spray tray are installed on the sterilizer; several spray pipes are installed at the bottom of each spray tray, with each pipe having a closed bottom and several spray nozzles on its wall; and a baffle is installed at the bottom of the spray tray at each spray pipe to prevent the spray media ejected from the nozzles of that pipe from scattering outwards. Compared to spraying directly from the bottom openings of each spray pipe, this solution seals the bottom of each spray pipe and instead sprays from spray nozzles located on the pipe walls. This prevents the spray medium from being concentrated and sprayed downwards, thus avoiding the phenomenon of missed areas. Furthermore, the baffles at each spray pipe prevent the spray medium from being blocked and dispersed downwards, ensuring a more uniform spray from the top spray system. This ensures that the spray medium is evenly sprayed onto the items, maintains temperature uniformity, and prevents incomplete sterilization due to uneven temperature.
[0011] Furthermore, in the aforementioned water bath sterilizer with arbitrary drop and pitless continuous circulation system, a spray support plate is provided below the spray tray, and several vertically penetrating spray holes are provided on the spray support plate. The arrangement of each spray hole can further improve the uniformity of the spray medium sprayed on the items and improve the sterilization effect.
[0012] The beneficial effects of this utility model are: ① It allows the water bath sterilizer and water pump to be installed on the same installation site without the need to dig a pit for the water pump, simplifying installation and making maintenance more convenient; ② Each guide rail group uses its own conveying device, and the load on each conveying device is small, effectively improving the service life of the conveying device; in addition, the addition of a torque limiter in the conveying device can achieve overload idling and protect the geared motor; ③ The top spray system is optimized to ensure that the top spray system can spray more evenly, so that the spray medium can be evenly sprayed on the items, ensuring temperature uniformity, avoiding incomplete sterilization due to uneven temperature, and improving the sterilization effect. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of the water bath sterilizer of this utility model, which features an arbitrary drop and a continuous circulation system without a pit.
[0014] Figure 2 yes Figure 1 A partial structural diagram of the location of the conveying device.
[0015] Figure 3 yes Figure 2 A magnified schematic diagram of part A in the middle.
[0016] Figure 4 yes Figure 1 A partial structural diagram of the location of the top sprinkler system.
[0017] Figure 5 yes Figure 4 A magnified schematic diagram of part B in the middle section.
[0018] Figure 6 yes Figure 1 A partial internal structural diagram of a water bath sterilizer viewed from the right.
[0019] Figure 7 yes Figure 6 A magnified schematic diagram of part C in the middle.
[0020] Figure 8 yes Figure 6 A magnified schematic diagram of part D in the middle section.
[0021] in:
[0022] 1. Water bath sterilizer; 2. Mounting base; 3. Installation site; 4. Inlet pipe; 5. Water pump; 6. Water pump mounting base; 7. Outlet pipe; 8. Bend; 9. Guide rail assembly; 10. Sterilization cart; 11. Chain drive; 12. Chain; 13. Support; 14. Roller; 15. Traveling mechanism; 16. Gear motor; 17. Motor shaft; 18. Torque limiter; 19. Drive sprocket; 20. Sprocket shaft; 21. Lever assembly; 22. Spray tray; 23. Spray pipe; 24. Spray nozzle; 25. Baffle; 26. Spray support plate; 27. Spray hole. Detailed Implementation
[0023] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and preferred embodiments.
[0024] Exemplary embodiments will be described more fully below with reference to the accompanying drawings; however, these exemplary embodiments may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will enable those skilled in the art to fully understand the scope of this disclosure.
[0025] For ease of description, this utility model is based on Figure 6 The left-hand direction shown is defined as "forward". Figure 6The right-hand direction shown is defined as "rear," and all directional terms used in this utility model are based on this definition. In the description of this utility model, it should be noted that the terms "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] The water bath sterilizer described in this embodiment features an arbitrary drop, pitless, continuous circulation system, such as... Figure 1 and Figure 2 As shown, it includes: a water bath sterilizer 1, which is installed on the installation site 3 via a mounting base 2; a water pump 5 that supplies water to the water inlet pipe 4 at the bottom of the water bath sterilizer 1 is installed on the installation site 3 via a water pump mounting base 6; and there is a height difference between the water inlet pipe at the bottom of the water bath sterilizer 1 and the water outlet pipe 7 of the water pump 5. A matching bend 8 is selected according to the height difference, and the water outlet pipe 7 of the water pump 5 is sealed to the water inlet pipe 4 at the bottom of the sterilizer 1 via the matching bend 8.
[0028] At this point, the water bath sterilizer 1 and the water pump 5 are installed on the same installation site 3, eliminating the need to dig a pit for the water pump 5 on the installation site 3, simplifying the installation and making maintenance more convenient.
[0029] like Figure 1 , Figure 2 and Figure 3 As shown in this embodiment, the sterilization chamber of the water bath sterilizer 1 is provided with two sets of guide rails 9, which are arranged side by side. Each sterilization cart 10 travels on the guide rails 9 through the walking mechanism 15 at the bottom of the sterilization cart 10. The walking mechanism 15 can be a structure with multiple walking wheels. The walking mechanism 15 is a mature technology in this field, so it will not be described in detail here.
[0030] Each guide rail group 9 is equipped with a conveying device that drives the sterilization cart 10 on that guide rail group 9 to move along it. For example... Figure 2 , Figure 3 , Figure 6 and Figure 8As shown, the structure of the conveying device in this embodiment is as follows: a chain drive 11 with a drive device is provided at the bottom of the sterilization chamber of the water bath sterilizer 1. Several lever assemblies 21 for pushing the sterilization cart 10 to move on the corresponding guide rail group 9 are provided on the chain drive 11. The lever assembly 21 includes: a support 13 fixed to the chain 12 of the chain drive 11, and rollers 14 are mounted on the support 13 through roller shafts. Usually, two rollers 14 are provided, symmetrically arranged on the support 13. During the process of the conveying device driving the lever assembly 21 to push the sterilization cart 10 from front to back, only the rollers 14 on the lever assembly 21 are in contact with the sterilization cart 10.
[0031] Among them, such as Figure 2 and Figure 3 As shown, in this embodiment, the driving device of the drive chain transmission 11 is a geared motor 16. The motor shaft 17 of the geared motor 16 is connected to the sprocket shaft 20 of the drive sprocket 19 of the chain transmission through a torque limiter 18. When an overload problem occurs, the torque limiter 18 is used to achieve the purpose of overload idling and protect the geared motor 16.
[0032] In the sterilization chamber of the water bath sterilizer 1, if the space along the longitudinal length from the sterilization cart inlet to the sterilization cart outlet is relatively compact, the lever assembly 21 on the chain drive 11 is positioned such that when the sterilization carts 10 are arranged closely together on the corresponding guide rail group 9, one lever assembly 21 will block the front of the sterilization cart closest to the sterilization cart inlet, and another lever assembly 21 will block the rear of the sterilization cart closest to the sterilization cart outlet. There will be no lever assembly 21 between adjacent sterilization carts 10. If the space along the longitudinal length from the sterilization cart inlet to the sterilization cart outlet is relatively ample, the lever assembly 21 on the chain drive 11 is positioned such that when the sterilization carts 10 are arranged sequentially on the corresponding guide rail group 9, one lever assembly 21 will block the front of the sterilization cart closest to the sterilization cart inlet, and another lever assembly 21 will block the rear of the sterilization cart closest to the sterilization cart outlet. Furthermore, there will also be a lever assembly 21 between each pair of adjacent sterilization carts 10.
[0033] The sterilization chamber of the water bath sterilizer 1 is equipped with a top spray system. This system eliminates temperature unevenness caused by the presence of cold air, further ensuring a clean sterilization environment. This embodiment optimizes the top spray system, such as... Figure 4 , Figure 5 and Figure 7As shown, the structure of the top spray system in this embodiment is as follows: at least one spray plate 22 is provided on the top of the sterilization chamber of the water bath sterilizer 1. Pipelines providing spray medium to each spray plate 22 are provided on the water bath sterilizer 1. The pipelines providing the spray medium have a conventional structure, and their structure will not be described in detail here. Several spray pipes 23 are provided at the bottom of each spray plate 22. The bottom of each spray pipe 23 is closed, and several spray nozzles 24 are opened on the pipe wall of each spray pipe 23. A baffle 25 is provided at the bottom of the spray plate 22 at each spray pipe 23 to prevent the spray medium sprayed from the spray nozzles 24 of that spray pipe 23 from spraying outwards. Compared to spraying directly downwards from the bottom openings of each spray pipe 23, this solution seals the bottom of each spray pipe 23 and instead sprays from each spray nozzle 24 located on the pipe wall. This prevents the spray medium from being concentrated and sprayed downwards from each spray pipe 23, thus avoiding the phenomenon of some areas not being sprayed. Furthermore, the baffles 25 at each spray pipe 23 can disperse the spray medium sprayed from each spray nozzle 24 downwards due to the baffles 25, ensuring that the top spray system can spray more evenly. This ensures that the spray medium is evenly sprayed on the items, ensuring temperature uniformity and avoiding incomplete sterilization due to uneven temperature.
[0034] A more preferred embodiment is to have a spray support plate 26 installed below the spray plate 22, such as... Figure 5 and Figure 7 As shown, a plurality of vertically penetrating spray holes 27 are provided on the spray support plate 26. The arrangement of each spray hole can further improve the uniformity of the spray medium sprayed on the item and improve the sterilization effect.
[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any modifications or equivalent changes made based on the technical essence of the present utility model shall still fall within the scope of protection claimed by the present utility model.
Claims
1. A water bath sterilizer with an arbitrary drop and a continuous circulation system without a pit, including: A water bath sterilizer; characterized in that: the water bath sterilizer is installed on the installation site via a mounting base, a water pump supplying water to the water inlet pipe at the bottom of the water bath sterilizer is installed on the installation site via a water pump mounting base, and there is a height difference between the water inlet pipe at the bottom of the water bath sterilizer and the water outlet pipe of the water pump, and the water outlet pipe of the water pump is sealed to the water inlet pipe at the bottom of the sterilizer via a bend.
2. The water bath sterilizer with arbitrary drop and pitless continuous circulation system according to claim 1, characterized in that: The sterilization chamber of the water bath sterilizer is equipped with two sets of guide rails arranged side by side. Each set of guide rails is equipped with a conveying device that drives the sterilization cart on that set of guide rails to move on the guide rails.
3. The water bath sterilizer with arbitrary drop and continuous circulation system according to claim 2, characterized in that: The conveying device is structured as follows: a chain drive with a drive device is installed at the bottom of the sterilization chamber of the water bath sterilizer. Several lever assemblies for pushing the sterilization cart to move on the corresponding guide rails are installed on the chain drive. The lever assembly includes: a support fixed to the chain of the chain drive, and a roller mounted on the support through a roller shaft. During the process of the lever assembly pushing the sterilization cart, only the roller on the lever assembly contacts the sterilization cart.
4. The water bath sterilizer with arbitrary drop and continuous circulation system according to claim 3, characterized in that: The drive device for the chain drive is a geared motor, and the motor shaft of the geared motor is connected to the sprocket shaft of the drive sprocket of the chain drive through a torque limiter.
5. The water bath sterilizer with arbitrary drop and continuous circulation system according to claim 1, 2, 3, or 4, characterized in that: At least one spray tray is installed at the top of the sterilization chamber of the water bath sterilizer. Pipes that provide spray medium to each spray tray are installed on the water bath sterilizer. Several spray pipes are installed at the bottom of each spray tray. The bottom of each spray pipe is closed. Several spray nozzles are opened on the pipe wall of each spray pipe. A baffle is installed at the bottom of the spray tray at each spray pipe to prevent the spray medium sprayed from each spray nozzle of the spray pipe from being sprayed and dispersed in all directions.
6. The water bath sterilizer with arbitrary drop and pitless continuous circulation system according to claim 5, characterized in that: A spray support plate is provided below the spray plate, and several vertical spray holes are provided on the spray support plate.