Steam sterilization and disinfection device

Abstract

The invention relates to a steam sterilization and disinfection device, and relates to the technical field of steam sterilization, the steam sterilization and disinfection device comprises a sterilization cylinder, the sterilization cylinder is communicated with an air inlet pipe and an exhaust pipe, the exhaust pipe is provided with an exhaust valve, the top of the sterilization cylinder is detachably provided with a sealing cover, and the bottom of the sealing cover is rotatably provided with an upper support; a plurality of vertical rods are rotatably arranged at the bottom of the upper support, a lower support is fixedly arranged at the bottoms of the vertical rods, a plurality of through holes are formed in the lower support in a penetrating mode, a ring seat is rotatably arranged in the through holes, a plurality of rotating arms are rotatably arranged at the top of the ring seat, lap joint plates are arranged on the rotating arms, and abutting columns are arranged at the tops of the lap joint plates. And a locking assembly is arranged on the ring seat and is used for keeping the rotating arm and the ring seat relatively static. The sterilization device has the effect of conveniently sterilizing the slender utensils.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steam sterilization, in particular to a steam sterilization and disinfection device. BACKGROUND

[0002] Steam sterilization is a technology that uses saturated pressure steam to sterilize and disinfect objects, and is suitable for medical and health, scientific research, agriculture and other fields, and can be used to sterilize and disinfect medical devices, dressings, glassware, solution culture medium, etc.

[0003] A steam sterilizer is provided in the related art, which has a patent authorization announcement No. CN219271653U, which includes a workbench, a sterilization cylinder mounted on the workbench, a sealing cover detachably arranged on the top of the sterilization cylinder, and a storage cylinder detachably arranged on the bottom of the sealing cover. A plurality of through holes are formed in the storage cylinder. A first air inlet pipe is arranged through the bottom of the sterilization cylinder and is rotatably connected to the bottom of the sterilization cylinder. One end of the first air inlet pipe located in the sterilization cylinder is provided with a U-shaped connecting pipe. A plurality of air nozzles are arranged on the side wall of the U-shaped connecting pipe. In use, the objects to be sterilized are placed in the storage cylinder, and then the storage cylinder is installed on the bottom of the sealing cover. After that, the sealing cover is tightly covered on the sterilization cylinder, so that the storage cylinder is moved into the sterilization cylinder. Finally, the first air inlet pipe is rotated to drive the U-shaped air pipe to rotate, so that the steam is sprayed from the air nozzles and uniformly sprayed on the objects to be sterilized, achieving the effect of sterilizing and disinfecting the objects to be sterilized.

[0004] In the process of implementing the present application, the inventors found that at least the following problems exist in the technology: When the objects to be sterilized are test tubes, flasks and other slender objects, because the test tubes, flasks and other objects are slender and deep inside, in the case of stacking a large number of objects, the steam is not easy to penetrate into the inside of the object, resulting in that the steam temperature inside the object is lower than the outside temperature, which reduces the sterilization effect of the slender object. SUMMARY

[0005] In order to facilitate the sterilization of slender objects, the present application provides a steam sterilization and disinfection device.

[0006] The steam sterilization and disinfection device provided by the present application adopts the following technical scheme: A steam sterilization and disinfection device, comprising a sterilization cylinder, an air inlet pipe and an air outlet pipe are arranged in communication on the sterilization cylinder, an air outlet valve is arranged on the air outlet pipe, a sealing cover is detachably arranged on the top of the sterilization cylinder, an upper support is rotatably arranged on the bottom of the sealing cover, a plurality of vertical rods are rotatably arranged on the bottom of the upper support, a lower support is fixedly arranged on the bottom of the vertical rod, a plurality of through holes are formed through the lower support, a ring seat is rotatably arranged in the through hole, a plurality of rotating arms are rotatably arranged on the top of the ring seat, a clamping plate is arranged on the rotating arm, an abutting column is arranged on the top of the clamping plate, a locking assembly is arranged on the ring seat, and the locking assembly is used to keep the rotating arm and the ring seat relatively stationary.

[0007] By adopting the technical scheme, one ring seat corresponds to one utensil, when the ring seat is inserted with the utensil, all the abutting columns on one ring seat are inserted into one utensil, then the rotating arm is rotated, when all the abutting columns abut against the inner wall of the utensil, the rotating arm and the ring seat are kept relatively static by the locking assembly, the effect of inserting the ring seat with the utensil is realized, when multiple slender utensils are sterilized, multiple utensils to be sterilized are inserted with the ring seat, then the sealing cover is tightly covered on the sterilization cylinder, the utensils to be sterilized are moved into the sterilization cylinder, then the steam is introduced into the sterilization cylinder by the air inlet pipe, then the upper support, the vertical rod and the ring seat are driven to rotate, so that the utensils to be sterilized rotate on their own axis and revolve around the central axis of the sterilization cylinder, the steam is uniformly contacted with the utensils to be sterilized, the effect of sterilizing the utensils to be sterilized is realized, in the process of sterilizing the utensils, the utensils are inverted and sterilized on the ring seat, the steam is difficult to enter the interior of the utensils due to the stacking of the utensils is reduced, and the condensed water in the utensils is easily discharged due to the inverted utensils, so that the slender utensils are sterilized.

[0008] Preferably, the air inlet pipe is connected with a plurality of horizontal air pipes at one end in the sterilization cylinder, the horizontal air pipes are connected with a plurality of horizontal nozzles, the horizontal nozzles are directed to the bottom of the sealing cover, the horizontal nozzles are below the upper support, the vertical rod, the lower support, the ring seat, the rotating arm, the lap joint plate, the abutting column and the locking assembly, the horizontal air pipes are connected with a vertical air pipe at the other end away from the air inlet pipe, the vertical air pipe is connected with a plurality of vertical nozzles, the vertical nozzles are directed to the central axis of the sterilization cylinder, and the upper support, the vertical rod, the lower support, the ring seat, the rotating arm, the lap joint plate, the abutting column and the locking assembly are between the vertical nozzles.

[0009] By adopting the technical scheme, in the process of sterilizing the utensils, the utensils are inverted and sterilized on the ring seat, the horizontal nozzles are below the utensils, the steam is sprayed upward by the horizontal nozzles, the steam is deep into the interior of the utensils, the vertical nozzles are on both sides of the utensils, the steam is sprayed to the side wall of the utensils by the vertical nozzles, the steam is uniformly contacted with the outer wall of the utensils to be sterilized in the process of rotating on its own axis and revolving around the central axis, and the slender utensils are sterilized.

[0010] Preferably, a driving motor is fixedly arranged at the top of the sealing cover, the output shaft of the driving motor penetrates the sealing cover, the output shaft of the driving motor is rotationally connected with the sealing cover, and the output shaft of the driving motor is fixedly connected with the top of the upper support.

[0011] By adopting the technical scheme, the driving motor is started to drive the upper support to rotate, the upper support drives the vertical rod to revolve around the central axis of the sterilization cylinder, and the vertical rod drives the lower support to revolve around the central axis of the sterilization cylinder.

[0012] Preferably, an upper drive gear is sleeved on the output shaft of the drive motor, and the output shaft of the drive motor is fixedly connected to the upper drive gear. An upper rotating shaft is fixedly installed at the top of the upright, and the upper rotating shaft passes through the upper support. The upper rotating shaft is rotatably connected to the upper support. An upper transmission gear is sleeved on the upper rotating shaft, and the upper transmission gear is fixedly connected to the upper rotating shaft. The upper transmission gear meshes with the upper drive gear.

[0013] By adopting the above technical solution, when the drive motor starts and drives the upper support to rotate, the drive motor drives the upper drive gear to rotate, the upper drive gear drives the upper transmission gear to rotate, the upper transmission gear drives the upper rotating shaft to rotate, the upper rotating shaft drives the upright to rotate, and the upright rotates to drive the lower support to rotate. This causes the lower support to revolve around the central axis of the sterilization cylinder while simultaneously rotating on its own axis. The rotation of the lower support causes the ring seat to revolve around the rotation axis of the upright, thus achieving the effect of the sterilized object revolving.

[0014] Preferably, the lower support has a receiving cavity that communicates with the through hole. A lower transmission gear is fitted on the ring seat and fixedly connected to it. The lower transmission gear is rotatably disposed within the receiving cavity. A lower rotating shaft is fixedly disposed at the bottom of the upright and passes through the top of the lower support. The lower rotating shaft is fixedly connected to the lower support. A lower driving gear is fitted on the lower rotating shaft and fixedly connected to it. The lower driving gear is located within the receiving cavity and meshes with the lower transmission gear.

[0015] By adopting the above technical solution, when the upright rotates, the upright drives the lower rotating shaft to rotate, the lower rotating shaft drives the lower drive gear to rotate, the lower drive gear drives the lower transmission gear to rotate, and the lower transmission gear drives the ring seat to rotate, thereby achieving the effect of the sterilized object rotating.

[0016] Preferably, the ring seat has an annular cavity, and a large gear is rotatably disposed within the annular cavity. The locking assembly is disposed between the ring seat and the large gear, and the locking assembly is used to keep the ring seat and the large gear relatively stationary. A small rotating shaft is fixedly disposed at the bottom of the rotating arm, and the small rotating shaft passes through the top of the ring seat. The small rotating shaft is rotatably connected to the ring seat. A small gear is sleeved on the small rotating shaft, and the small rotating shaft and the small gear are fixedly connected. The small gear is located within the annular cavity, and the small gear meshes with the large gear.

[0017] By adopting the above technical solution, when inserting the ring seat into the object, all the abutting posts on one ring seat are inserted into the object. Then, any one of the rotating arms is rotated. This rotating arm drives the corresponding small rotating shaft to rotate, the small rotating shaft drives the corresponding small gear to rotate, the small gear drives the large gear to rotate, the large gear drives the remaining small gears to rotate, the small gear drives the corresponding small rotating shaft to rotate, and the small rotating shaft drives the rotating arm to rotate. This achieves the effect of all rotating arms on the same ring seat rotating synchronously. When all the abutting posts abut against the inner wall of the object, the locking assembly is used to keep the ring seat and the large gear relatively stationary, achieving the effect of inserting the ring seat into the object. When separating the ring seat from the object, the object can be lifted upwards.

[0018] Preferably, the locking assembly includes a ratchet, a pawl, and a torsion spring, all of which are located within the ring cavity. The ratchet is fixedly connected to a large gear and is coaxially arranged with the large gear. A connecting shaft is rotatably arranged between the pawl and the inner wall of the ring cavity. The pawl engages with the ratchet. The torsion spring is sleeved on the connecting shaft, with one end of the torsion spring fixedly connected to the pawl and the other end of the torsion spring fixedly connected to the inner wall of the ring cavity.

[0019] By adopting the above technical solution, using ratchet, pawl and torsion spring, the large gear can only rotate in one direction. When all the abutting posts are in contact with the inner wall of the object, the abutting posts are restricted by the object and cannot continue to rotate, so that the ring seat and the large gear remain relatively stationary. After the object is pulled out from the abutting posts, the abutting posts are no longer restricted by the object, and the large gear can rotate in one direction.

[0020] Preferably, the bottom wall of the sterilization cylinder is provided with an arc-shaped groove, and a drain pipe is connected to the bottom of the sterilization cylinder, with a drain valve installed on the drain pipe.

[0021] By adopting the above technical solution, the steam condensate inside the object is discharged and collected at the bottom of the arc-shaped groove. When the drain valve is opened, the condensate at the bottom of the arc-shaped groove is discharged through the drain pipe.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up a sterilization cylinder, air inlet pipe, air outlet pipe, air outlet valve, sealing cover, upper support, upright rod, lower support, through hole, ring seat, rotating arm, overlapping plate, abutment column and locking assembly, the objects are placed upside down on the ring seat for sterilization during the sterilization process. This reduces the situation where stacked objects make it difficult for steam to penetrate into the interior of the objects. Furthermore, the upside-down position facilitates the discharge of steam condensate from the objects, making it easier to sterilize slender objects. 2. By setting up horizontal air pipes, horizontal nozzles, vertical air pipes, and vertical nozzles, it is easy for steam to come into contact with the objects to be sterilized, thus achieving the effect of sterilizing slender objects; 3. By setting ratchet, pawl, torsion spring and connecting shaft, the effect of keeping the rotating arm and the ring seat relatively stationary can be achieved. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a steam sterilization and disinfection device according to an embodiment of this application.

[0024] Figure 2 This is a cross-sectional view illustrating the positional relationship between the sterilization tube and the arc-shaped groove in an embodiment of this application.

[0025] Figure 3 This is a cross-sectional view illustrating the connection between the sealing cover and the upper support in the embodiments of this application.

[0026] Figure 4 This is a cross-sectional view illustrating the connection between the upright and the lower support in the embodiments of this application.

[0027] Figure 5 This is a cross-sectional view illustrating the connection between the rotating arm and the ring seat in the embodiments of this application.

[0028] Figure 6 yes Figure 5 Enlarged view of part A in the middle.

[0029] Figure 7 This is a cross-sectional view illustrating the positional relationship between the ratchet and the annular cavity in an embodiment of this application.

[0030] Figure 8 yes Figure 7 Enlarged view of section B.

[0031] Explanation of reference numerals in the attached drawings: 1. Sterilization cylinder; 11. Exhaust pipe; 111. Exhaust valve; 12. Drain pipe; 121. Drain valve; 13. Arc-shaped groove; 2. Air inlet pipe; 21. Horizontal air pipe; 211. Horizontal nozzle; 22. Vertical air pipe; 221. Vertical nozzle; 3. Upper support; 31. Drive motor; 311. Upper drive gear; 4. Upright pole; 41. Upper rotating shaft; 411. Upper transmission gear; 5. 51. Lower support; 52. Through hole; 53. Receiving cavity; 54. Lower transmission gear; 55. Lower drive gear; 56. Lower rotating shaft; 67. Ring seat; 68. Ring cavity; 69. Large gear; 60. Small gear; 61. Small rotating shaft; 62. Small rotating shaft; 70. Rotary arm; 71. Lap plate; 72. Abutment post; 81. Locking assembly; 82. Ratchet; 83. Pad; 84. Connecting shaft; 85. Torsion spring; 9. Sealing cover. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0033] This application discloses a steam sterilization and disinfection device. (Refer to...) Figures 1 to 8The system includes a sterilization cylinder 1, with an arc-shaped groove 13 on the inner bottom wall. A drain pipe 12 is connected to the bottom of the sterilization cylinder 1, and a drain valve 121 is installed on the drain pipe 12. An air inlet pipe 2 and an exhaust pipe 11 are connected to the side wall of the sterilization cylinder 1. The air inlet pipe 2 is located inside the sterilization cylinder 1 near the bottom, and the exhaust pipe 11 is located inside the sterilization cylinder 1 near the top. The end of the air inlet pipe 2 located outside the sterilization cylinder 1 is connected to a steam source, and an exhaust valve 111 is installed on the exhaust pipe 11. A detachable sealing cover 9 is installed on the top of the sterilization cylinder 1, and an upper support 3 is rotatably mounted on the bottom of the sealing cover 9. Several uprights 4 are rotatably mounted on the bottom of the upper support 3, with the axis of rotation of the support 3 above the uprights 4 forming a central circular array. A lower support 5 is installed on the bottom of the uprights 4, and several through holes 51 are opened through the lower support 5, with the axis of rotation of the support 5 below the through holes 51 forming a central circular array. A ring seat 6 is rotatably mounted inside the through hole 51. Several rotating arms 7 are rotatably mounted on the top of the ring seat 6, arranged in a circular array around the rotation axis of the ring seat 6. An overlapping plate 71 is mounted on each rotating arm 7, and an abutment post 72 is mounted on the top of the overlapping plate 71. A locking assembly 8 is mounted on the ring seat 6 to keep the rotating arms 7 and the ring seat 6 relatively stationary. One ring seat 6 corresponds to one object. When inserting the ring seat 6 into the object, all the abutment posts 72 on one ring seat 6 are inserted into the object. Then, the rotating arm 7 is rotated. After all the abutment posts 72 are in contact with the inner wall of the object, the locking assembly 8 keeps the rotating arm 7 and the ring seat 6 relatively stationary, achieving the insertion effect between the ring seat 6 and the object. When sterilizing multiple slender objects, after inserting the multiple objects to be sterilized into the corresponding ring seats 6, the sealing cap 9 is tightly closed on the sterilization cylinder 1, allowing the objects to be sterilized to be moved into the sterilization cylinder 1. Steam is then introduced into the sterilization cylinder 1 through the air inlet pipe 2, which in turn drives the upper support 3, the upright rod 4, and the ring seat 6 to rotate. This causes the objects to be sterilized to rotate on their own axis and revolve around the central axis, ensuring even contact between the steam and the objects and achieving the desired sterilization effect. During the sterilization process, the objects are placed upside down on the ring seat 6 to reduce the risk of steam not penetrating the interior of the containers due to stacking, making it easier to sterilize slender objects. Furthermore, the upside-down position facilitates the drainage of steam condensate from the objects. After drainage, the condensate collects at the bottom of the arc-shaped groove 13. Opening the drain valve 121 allows the condensate at the bottom of the arc-shaped groove 13 to drain out through the drain pipe 12.

[0034] To facilitate contact between steam and the items to be sterilized, and to achieve a better sterilization effect for slender items, refer to... Figures 1 to 8The air inlet pipe 2 is located inside the sterilization cylinder 1, and several horizontal air pipes 21 are connected to one end of the air inlet pipe 2. Several horizontal nozzles 211 are connected to the horizontal air pipes 21. The horizontal nozzles 211 face the bottom of the sealing cover 9 and are located below the upper support 3, the upright 4, the lower support 5, the ring seat 6, the rotating arm 7, the overlapping plate 71, the abutment post 72, and the locking assembly 8. During the sterilization process, the objects are placed upside down on the ring seat 6 for sterilization. The horizontal nozzles 211 are located below the objects and spray steam upwards, facilitating the steam to penetrate deep into the interior of the objects. A vertical air pipe 22 is connected to the end of the horizontal air pipes 21 away from the air inlet pipe 2, and several vertical nozzles 221 are connected to the vertical air pipe 22. All vertical nozzles 221 face the central axis of the sterilization cylinder 1. The upper support 3, upright 4, lower support 5, ring seat 6, rotating arm 7, overlapping plate 71, abutment post 72, and locking assembly 8 are all located between the vertical nozzles 221. The vertical nozzles 221 are located on both sides of the container, and they spray steam onto the side wall of the container. During the rotation and revolution of the container, the steam comes into uniform contact with the outer wall of the container to be sterilized.

[0035] Reference Figures 1 to 4 A drive motor 31 is mounted on the top of the sealing cover 9, and the output shaft of the drive motor 31 passes through the sealing cover 9. The output shaft of the drive motor 31 is rotatably connected to the sealing cover 9, and the output shaft of the drive motor 31 is welded to the top of the upper support 3. When the drive motor 31 starts, it drives the upper support 3 to rotate, and the upper support 3 drives the upright 4 to revolve around the central axis of the sterilization cylinder 1. The upright 4 drives the lower support 5 to revolve around the central axis of the sterilization cylinder 1.

[0036] Reference Figures 1 to 4 An upper drive gear 311 is fitted onto the output shaft of the drive motor 31, and the output shaft of the drive motor 31 is welded to the upper drive gear 311. An upper rotating shaft 41 is installed at the top of the upright 4, passing through the upper support 3, and is rotatably connected to the upper support 3. An upper transmission gear 411 is fitted onto the upper rotating shaft 41, and is welded to the upper rotating shaft 41, and meshes with the upper drive gear 311. When the drive motor 31 starts and drives the upper support 3 to rotate, the drive motor 311 drives the upper drive gear 311 to rotate, the upper drive gear 311 drives the upper transmission gear 411 to rotate, the upper transmission gear 411 drives the upper rotating shaft 41 to rotate, the upper rotating shaft 41 rotates, the upright 4 rotates, and the upright 4 rotates, causing the lower support 5 to rotate. The lower support 5 revolves around the central axis of the sterilization cylinder 1 while simultaneously rotating on its own axis. The rotation of the lower support 5 causes the ring seat 6 to revolve around the rotation axis of the upright rod 4, thus achieving the effect of the sterilized object revolving.

[0037] Reference Figures 1 to 5A receiving cavity 52 is formed inside the lower support 5, which is connected to the through hole 51. A lower drive gear 521 is fitted onto the ring seat 6 and welded to it. The lower drive gear 521 is rotatably positioned within the receiving cavity 52. ​​A lower rotating shaft 523 is installed at the bottom of the upright 4, passing through the top of the lower support 5 and welded to it. A lower driving gear 522 is fitted onto the lower rotating shaft 523 and welded to it. The lower driving gear 522 is located within the receiving cavity 52 and meshes with the lower drive gear 521. When the upright 4 rotates, it drives the lower rotating shaft 523 to rotate, which in turn drives the lower drive gear 522 to rotate, which in turn drives the lower drive gear 521 to rotate, which in turn drives the ring seat 6 to rotate, thus achieving the effect of rotation of the sterilized object.

[0038] Reference Figures 5 to 8 A ring seat 6 has an annular cavity 61, within which a large gear 62 is rotatably mounted. A locking assembly 8 is installed between the ring seat 6 and the large gear 62, keeping them relatively stationary. A small rotating shaft 622 is mounted at the bottom of the rotating arm 7, passing through the top of the ring seat 6 and rotatably connected to it. A small gear 621 is fitted onto the small rotating shaft 622 and welded to it. The small gear 621 is located within the annular cavity 61 and meshes with the large gear 62. When inserting the ring seat 6 into the object, all the abutment posts 72 on one ring seat 6 are inserted into the object. Then, any one of the rotating arms 7 is rotated. This rotating arm 7 drives the corresponding small rotating shaft 622 to rotate, the small rotating shaft 622 drives the corresponding small gear 621 to rotate, the small gear 621 drives the large gear 62 to rotate, the large gear 62 drives the remaining small gears 621 to rotate, the small gears 621 drive the corresponding small rotating shaft 622 to rotate, and the small rotating shaft 622 drives the rotating arm 7 to rotate, achieving the effect of synchronous rotation of all the rotating arms 7 on the same ring seat 6. After all the abutment posts 72 abut against the inner wall of the object, the locking assembly 8 is used to keep the ring seat 6 and the large gear 62 relatively stationary, achieving the effect of inserting the ring seat 6 into the object. When separating the ring seat 6 from the object, the object is simply lifted upwards.

[0039] Reference Figures 5 to 8The locking assembly 8 includes a ratchet 81, a pawl 82, and a torsion spring 83, all located within the cavity. The ratchet 81 is rotatably mounted within the annular cavity 61, welded to the large gear 62, and coaxially arranged with it. A connecting shaft 821 rotatably connects the pawl 82 to the inner wall of the annular cavity 61, engaging with the ratchet 81. The torsion spring 83 is sleeved on the connecting shaft 821, with one end welded to the pawl 82 and the other end welded to the inner wall of the annular cavity 61. The ratchet 81, pawl 82, and torsion spring 83 ensure that the large gear 62 can only rotate in one direction. When all the abutment posts 72 are in contact with the inner wall of the object, the abutment posts 72 are restricted by the object and cannot easily continue rotating, keeping the annular seat 6 and the large gear 62 relatively stationary. After the object is pulled out from the abutment post 72, the abutment post 72 is no longer restricted by the object, and the large gear 62 can rotate in one direction.

[0040] The implementation principle of the steam sterilization device in this application embodiment is as follows: one ring seat 6 is inserted into one object. When inserting the ring seat 6 into the object, all the abutment posts 72 on one ring seat 6 are inserted into the object. Then, the rotating arm 7 is rotated. After all the abutment posts 72 abut against the inner wall of the object, the rotating arm 7 and the ring seat 6 remain relatively stationary, achieving the effect of inserting the ring seat 6 into the object. When sterilizing multiple slender objects, after inserting multiple objects to be sterilized into the ring seat 6, the sealing cap 9 is tightly closed on the sterilization cylinder 1, so that the objects to be sterilized are moved into the sterilization cylinder 1. Then, the air inlet pipe 2 introduces steam into the horizontal air pipe 21 and the vertical air pipe 22. The horizontal nozzle 211 sprays steam upward to facilitate the steam penetrating into the interior of the object, and the vertical nozzle 221 sprays steam towards the side wall of the object. Then, the drive motor 31 is started, causing the sterile object to rotate on its own axis and also to revolve around a central point, facilitating even contact between the steam and the object and achieving the desired sterilization effect. During the sterilization process, the object is placed upside down on the ring seat 6 to reduce the risk of steam not penetrating the interior of the container due to stacking, thus facilitating the sterilization of slender objects. Furthermore, the upside-down position facilitates the drainage of steam condensate from the object. After drainage, the condensate collects at the bottom of the arc-shaped groove 13. Opening the drain valve 121 allows the condensate at the bottom of the arc-shaped groove 13 to drain out through the drain pipe 12.

[0041] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A steam sterilization device, comprising a sterilization cylinder, wherein an air inlet pipe and an air outlet pipe are connected to the sterilization cylinder, an air outlet valve is provided on the air outlet pipe, and a detachable sealing cap is provided on the top of the sterilization cylinder, characterized in that: The sealing cover is rotatably provided with an upper support at its bottom, and several uprights are rotatably provided at the bottom of the upper support. A lower support is fixedly provided at the bottom of the uprights. Several through holes are opened through the lower support. A ring seat is rotatably provided in the through holes. Several rotating arms are rotatably provided at the top of the ring seat. An overlapping plate is provided on the rotating arm. An abutment post is provided at the top of the overlapping plate. A locking assembly is provided on the ring seat. The locking assembly is used to keep the rotating arms and the ring seat relatively stationary.

2. The steam sterilization and disinfection device according to claim 1, characterized in that: The air inlet pipe is located inside the sterilization cylinder and is connected to several horizontal air pipes. Several horizontal nozzles are connected to the horizontal air pipes and face the bottom of the sealing cap. The horizontal nozzles are all located below the upper support, upright, lower support, ring seat, rotating arm, overlapping plate, abutment post, and locking assembly. The horizontal air pipe is connected to a vertical air pipe at the end away from the air inlet pipe and is connected to several vertical nozzles. The vertical nozzles are all facing the central axis of the sterilization cylinder. The upper support, upright, lower support, ring seat, rotating arm, overlapping plate, abutment post, and locking assembly are all located between the vertical nozzles.

3. The steam sterilization and disinfection device according to claim 1, characterized in that: A drive motor is fixedly installed on the top of the sealing cover. The output shaft of the drive motor passes through the sealing cover and is rotatably connected to the sealing cover. The output shaft of the drive motor is also fixedly connected to the top of the upper support.

4. The steam sterilization and disinfection device according to claim 3, characterized in that: An upper drive gear is fitted onto the output shaft of the drive motor, and the output shaft of the drive motor is fixedly connected to the upper drive gear. An upper rotating shaft is fixedly installed at the top of the upright, and the upper rotating shaft passes through the upper support. The upper rotating shaft is rotatably connected to the upper support. An upper transmission gear is fitted onto the upper rotating shaft, and the upper transmission gear is fixedly connected to the upper rotating shaft. The upper transmission gear meshes with the upper drive gear.

5. The steam sterilization and disinfection device according to claim 1, characterized in that: The lower support has a receiving cavity that communicates with a through hole. A lower transmission gear is fitted on the ring seat and fixedly connected to it. The lower transmission gear is rotatably mounted in the receiving cavity. A lower rotating shaft is fixedly mounted at the bottom of the upright and passes through the top of the lower support. The lower rotating shaft is fixedly connected to the lower support. A lower drive gear is fitted on the lower rotating shaft and fixedly connected to it. The lower drive gear is located in the receiving cavity and meshes with the lower transmission gear.

6. The steam sterilization and disinfection device according to claim 1, characterized in that: An annular cavity is formed within the annular seat, and a large gear is rotatably disposed within the annular cavity. A locking assembly is disposed between the annular seat and the large gear, and the locking assembly is used to keep the annular seat and the large gear relatively stationary. A small rotating shaft is fixedly disposed at the bottom of the rotating arm, and the small rotating shaft passes through the top of the annular seat. The small rotating shaft is rotatably connected to the annular seat. A small gear is sleeved on the small rotating shaft, and the small rotating shaft and the small gear are fixedly connected. The small gear is located within the annular cavity, and the small gear meshes with the large gear.

7. The steam sterilization and disinfection device according to claim 6, characterized in that: The locking assembly includes a ratchet, a pawl, and a torsion spring. The ratchet, pawl, and torsion spring are all located inside the ring cavity. The ratchet is fixedly connected to a large gear and is coaxially arranged with the large gear. A connecting shaft is rotatably arranged between the pawl and the inner wall of the ring cavity. The pawl cooperates with the ratchet. The torsion spring is sleeved on the connecting shaft. One end of the torsion spring is fixedly connected to the pawl, and the other end of the torsion spring is fixedly connected to the inner wall of the ring cavity.

8. The steam sterilization and disinfection device according to claim 1, characterized in that: The bottom wall of the sterilization cylinder is provided with an arc-shaped groove, and a drain pipe is connected to the bottom of the sterilization cylinder, with a drain valve installed on the drain pipe.

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