A medical steam sterilization apparatus

Abstract

The application relates to the technical field of medical steam sterilization equipment, and discloses medical steam sterilization equipment, which comprises a sterilization equipment main body, a rotatable sealing cover arranged above the sterilization equipment main body, a hollow conveying rod rotationally connected to the sealing cover, a rotating disc fixed to the lower end of the hollow conveying rod, a plurality of spray holes arranged on the rotating disc, a first piston cylinder and a plurality of second piston cylinders fixed to the sealing cover respectively, and an inflatable sealing ring arranged on one side of the sealing cover; the upper end of the sterilization equipment main body is slidably connected with an annular sheet, and a plurality of hollow inserting rods are fixed to the annular sheet; in the application, steam can form spiral vortex flow, so as to eliminate sterilization dead angles in a sterilization cavity; in addition, the greater the internal pressure of the sterilization equipment main body is, the greater the expansion volume of the sealing ring is; and when the high-temperature and high-pressure state is achieved, the sealing effect of the sterilization equipment main body and the sealing cover can be improved.

Description

Technical Field

[0001] This invention relates to the field of medical steam sterilization equipment technology, specifically to a medical steam sterilization device. Background Technology

[0002] The core function of medical steam sterilization equipment is to use high-temperature and high-pressure steam to quickly and thoroughly kill all microorganisms, including bacteria, viruses, fungi, and spores that are difficult to kill, on medical devices, dressings, glassware, and culture media, achieving efficient and reliable sterility. This equipment is a key piece of equipment in hospital disinfection supply centers, operating rooms, laboratories, and pharmaceutical companies. It is widely used for the terminal sterilization of medical and scientific research items that can withstand humid and hot environments, effectively blocking cross-infection pathways and ensuring the safety and accuracy of clinical operations and experimental results. In existing technologies, traditional medical pressure steam sterilization equipment generally suffers from the following core defects: 1. Cold air can easily remain inside the sterilization chamber. The steam is sprayed out from the fixed nozzles and is unevenly distributed, which can easily form sterilization dead zones, resulting in incomplete sterilization. 2. During the sealing process of medical steam sterilization equipment, the sealing cover needs to be manually adjusted to close the sealing cover so that the high-temperature resistant sealing gasket at the lower end of the sealing cover fits into the machine. However, the sealing gasket is prone to deformation under long-term use at high temperatures; and its sealing pressure is a fixed value and cannot be dynamically adjusted with the internal pressure. Under high pressure, micro-leakage, steam waste, and insufficient sterilization pressure are likely to occur. Summary of the Invention

[0003] This invention provides a medical steam sterilization device that allows steam to form a spiral vortex within the sterilization cavity, enabling rapid steam distribution and eliminating sterilization dead zones. Furthermore, it achieves the goal of increasing the expansion volume of the sealing ring as the internal pressure of the sterilization device increases. Under high temperature and high pressure conditions, this improves the sealing effect between the sterilization device and the sealing cap. This invention addresses the problems mentioned in the background art, such as the tendency for cold air to remain inside the sterilization cavity, uneven steam distribution from the fixed nozzle leading to sterilization dead zones and incomplete sterilization, and the need for manual adjustment of the sealing cap during sealing to ensure the high-temperature resistant sealing gasket at the lower end of the cap fits snugly against the machine. However, the sealing gasket is prone to deformation under prolonged high temperatures; and the sealing pressure is a fixed value, unable to dynamically adjust with the internal pressure, leading to micro-leakage, steam waste, and insufficient sterilization pressure under high pressure.

[0004] The present invention provides the following technical solution: a medical steam sterilization device, comprising a sterilization device body, a rotatable sealing cover disposed above the sterilization device body, a hollow conveying rod rotatably connected to the sealing cover, a rotating disk fixed to the lower end of the hollow conveying rod, a plurality of spray holes opened on the rotating disk, a first piston cylinder and a plurality of second piston cylinders respectively fixed on the sealing cover, and an expandable sealing ring installed on one side of the sealing cover; The upper end of the sterilization equipment body is slidably connected with an annular plate, and several hollow inserts are fixed on the annular plate. The sterilization equipment body is provided with sterilization cavities and annular sealing grooves, and several spirally distributed arc-shaped guide plates are provided in the sterilization cavities.

[0005] As an optional embodiment of the medical steam sterilization device of the present invention, a threaded rod is rotatably connected to the sealing cover, a rotating bracket is threadedly connected to the threaded rod, one end of the rotating bracket is rotatably connected to the main body of the sterilization device, and a rotating wheel is fixed to the upper end of the threaded rod.

[0006] As an optional embodiment of the medical steam sterilization equipment of the present invention, wherein: a servo motor for driving the hollow conveying rod to rotate is fixed on the sealing cover, a rotary joint is connected to the hollow conveying rod, a steam generator is fixed on the main body of the sterilization equipment, the rotary joint is connected to the steam generator through a pipe, and an exhaust valve is provided on the sealing cover.

[0007] As an optional embodiment of the medical steam sterilization device of the present invention, wherein: a first piston plate is slidably connected to the first piston cylinder, a first piston rod is fixed on the first piston plate, the first piston rod is elastically connected to the first piston cylinder through a first spring, and the first piston cylinder is connected to a plurality of second piston cylinders through a pipe.

[0008] As an optional embodiment of the medical steam sterilization device of the present invention, wherein: a second piston plate is slidably connected to the second piston cylinder, a second piston rod is fixed on the second piston plate, the second piston rod is slidably connected to the sealing cover, and the second piston cylinder is connected to the sealing ring through a flow channel.

[0009] As an optional embodiment of the medical steam sterilization equipment described in this invention, an exhaust pipe and a drain pipe are respectively provided at the lower end of the sterilization cavity, and a vacuum pump is connected to the lower end of the exhaust pipe.

[0010] As an optional embodiment of the medical steam sterilization device of the present invention, the hollow insert is elastically connected to the main body of the sterilization device via a second spring, a first circular rod is slidably connected inside the hollow insert, and a third spring is connected between the first circular rod and the hollow insert.

[0011] As an optional embodiment of the medical steam sterilization device of the present invention, wherein: the lower end of the hollow rod is provided with an abutment strip, the abutment strip is elastically connected to the main body of the sterilization device through a fifth spring, a hollow rod is fixed on the abutment strip, the hollow rod is slidably connected to the main body of the sterilization device, a second circular rod is rotatably connected to the hollow rod, and the second circular rod is fixedly connected to the arc-shaped guide plate.

[0012] As an optional embodiment of the medical steam sterilization equipment of the present invention, the main body of the sterilization equipment is provided with an arc-shaped groove adapted to the arc-shaped guide plate, and the arc-shaped groove is connected to the sterilization cavity.

[0013] As an optional embodiment of the medical steam sterilization device of the present invention, wherein: an abutment piece is slidably connected to the upper end of the abutment strip, a fourth spring is connected between the abutment piece and the abutment strip, and an abutment frame is fixed on the abutment piece; an abutment block is fixed to one end of the second circular rod, and the abutment block abuts against the abutment frame.

[0014] The present invention has the following beneficial effects:

[0015] 1. In this medical steam sterilization equipment, a hollow conveying rod on the sealed cover transports high-temperature steam generated by the steam generator to the top of the sterilization equipment body, allowing the steam to be dispersed from top to bottom. Through several nozzles on the rotating disc, high-temperature steam is sprayed tangentially downwards along the inner wall of the sterilization cavity. When the hollow conveying rod drives the rotating disc to rotate, the steam ejected from the nozzles forms a spiral airflow from top to bottom. During cold air removal, residual cold air in the sterilization cavity is pressed towards the center and sinks. With the help of a vacuum pump and exhaust pipe, the cold air can be quickly discharged from the sterilization cavity, improving exhaust efficiency. During the sterilization of items, the steam spirals and rotates, forming a spiral vortex in the sterilization cavity, allowing the steam to be quickly distributed within the sterilization cavity. This eliminates sterilization dead zones within the sterilization cavity, significantly improves steam penetration and sterilization uniformity, increases the contact frequency between steam and the surface of the items, accelerates heat transfer, and improves sterilization consistency. This ensures uniform temperature and pressure within the sterilization cavity, shortens the heating cycle required for sterilization, and improves sterilization efficiency.

[0016] 2. This medical steam sterilization equipment utilizes a sealing ring on the sealing cover, which expands upon injection of oil, allowing it to extend into an annular sealing groove on the main body of the sterilization equipment, thus providing a seal. The larger the expansion volume of the sealing ring, the greater the compressive force, enhancing the seal between the sealing cover and the main body of the sterilization equipment, preventing air leakage, and ensuring sterilization pressure. The first piston cylinder automatically pushes the first piston plate when the pressure inside the sterilization cavity increases, compressing the air in the first piston cylinder. This compresses the air in several second piston cylinders, causing the second piston plates to squeeze the oil inside, resulting in the automatic expansion of the sealing ring. Therefore, the sealing ring expands as the internal pressure of the sterilization equipment increases. Under high temperature and high pressure conditions, this improves the sealing effect between the main body of the sterilization equipment and the sealing cover, preventing steam leakage and enhancing the sterilization effect of the items.

[0017] 3. In this medical steam sterilization equipment, several spirally distributed arc-shaped guide plates can move on the main body of the sterilization equipment. When the steam spirals downward, the cooperation of several arc-shaped guide plates can guide the steam flow, suppress local turbulence caused by collision and separation, and maintain the stability of the steam vortex. When the sealing cover moves down and pushes the annular plate to move, it can cause the hollow insert rod to contact the contact strip, so that several arc-shaped guide plates automatically move into the sterilization cavity, further guiding the steam vortex, effectively improving the stability and uniformity of the vortex, and further optimizing the steam distribution and sterilization effect. When the second piston plate moves on the second piston cylinder, it can cause the sealing ring to expand and improve the sealing effect. On the other hand, the second piston rod abuts against the first circular rod, causing the first circular rod to move downward and push the abutment plate to move. With the cooperation of the abutment frame, the abutment block and the second circular rod, the arc-shaped guide plate can automatically deflect. In the later stage of sterilization, it changes the flow direction of steam and forms turbulence to improve the penetration of steam and the heating effect. This can further reduce the sterilization dead corners between items and also improve the drying effect of the items. Attached Figure Description

[0018] Figure 1 This is one of the three-dimensional structural schematic diagrams of the present invention.

[0019] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention.

[0020] Figure 3 This is a cross-sectional view of the main structure of the sterilization equipment of the present invention.

[0021] Figure 4 This is a schematic diagram of the sterilization cavity structure of the main body of the sterilization equipment of the present invention.

[0022] Figure 5This is a schematic diagram of the abutment strip structure of the present invention.

[0023] Figure 6 This is a schematic diagram of the contact frame structure of the present invention.

[0024] Figure 7 for Figure 3 Enlarged view of point A in the middle.

[0025] Figure 8 for Figure 3 Enlarged view of section B in the middle.

[0026] In the diagram: 1. Main body of sterilization equipment; 2. Sealing cover; 3. Hollow conveyor rod; 4. Rotary disc; 5. Spray nozzle; 6. First piston cylinder; 7. Second piston cylinder; 8. Annular plate; 9. Sealing ring; 10. Sterilization cavity; 11. Annular sealing groove; 12. Contact frame; 13. Arc-shaped guide plate; 14. Threaded rod; 15. Rotating support; 16. Rotating wheel; 17. Servo motor; 18. Rotary joint; 19. Steam generator; 20. First piston plate; 2 1. First piston rod; 22. First spring; 23. Second piston plate; 24. Second piston rod; 25. Exhaust pipe; 26. Vacuum pump; 27. Drain pipe; 28. Second spring; 29. ​​First circular rod; 30. Third spring; 31. Abutting strip; 32. Fifth spring; 33. Second circular rod; 34. Arc groove; 35. Abutting piece; 36. Fourth spring; 37. Abutting block; 38. Exhaust valve; 39. Hollow rod; 40. Hollow insert rod. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1, please refer to Figures 1 to 8 A medical steam sterilization device includes a sterilization device body 1, a rotatable sealing cover 2 is provided on the top of the sterilization device body 1, a hollow conveying rod 3 is rotatably connected to the sealing cover 2, a rotating disk 4 is fixed at the lower end of the hollow conveying rod 3, a plurality of spray holes 5 are opened on the rotating disk 4, a first piston cylinder 6 and a plurality of second piston cylinders 7 are respectively fixed on the sealing cover 2, and an expandable sealing ring 9 is installed on one side of the sealing cover 2; The upper end of the sterilization equipment body 1 is slidably connected with an annular plate 8, and several hollow inserts 40 are fixed on the annular plate 8. The sterilization equipment body 1 is provided with a sterilization cavity 10 and an annular sealing groove 11 respectively. Several spirally distributed arc-shaped guide plates 13 are provided in the sterilization cavity 10.

[0029] A threaded rod 14 is rotatably connected to the sealing cover 2, and a rotating bracket 15 is threadedly connected to the threaded rod 14. One end of the rotating bracket 15 is rotatably connected to the main body 1 of the sterilization equipment, and a rotating wheel 16 is fixed to the upper end of the threaded rod 14.

[0030] A servo motor 17 that drives the hollow conveyor rod 3 to rotate is fixed on the sealing cover 2. A rotary joint 18 is connected to the hollow conveyor rod 3. A steam generator 19 is fixed on the main body 1 of the sterilization equipment. The rotary joint 18 is connected to the steam generator 19 through a pipe. An exhaust valve 38 is provided on the sealing cover 2.

[0031] A first piston plate 20 is slidably connected to the first piston cylinder 6, and a first piston rod 21 is fixed on the first piston plate 20. The first piston rod 21 is elastically connected to the first piston cylinder 6 through a first spring 22. The first piston cylinder 6 is connected to several second piston cylinders 7 through a pipe.

[0032] A second piston plate 23 is slidably connected to the second piston cylinder 7, and a second piston rod 24 is fixed on the second piston plate 23. The second piston rod 24 is slidably connected to the sealing cover 2, and the second piston cylinder 7 is connected to the sealing ring 9 through the flow channel.

[0033] The lower end of the sterilization cavity 10 is provided with an exhaust pipe 25 and a drain pipe 27, and the lower end of the exhaust pipe 25 is connected to a vacuum pump 26.

[0034] refer to Figures 1 to 7 When using the medical steam sterilization equipment, place the items to be sterilized into the hollow sterilization basket, then place the sterilization basket into the sterilization cavity 10. Next, pull the rotating bracket 15 to deflect it, causing the sealing cover 2 to move horizontally to the top of the opening of the sterilization equipment body 1. Then, manually rotate the rotating wheel 16 to make the threaded rod 14 and the rotating bracket 15 rotate spirally, thereby driving the sealing cover 2 to move down so that its lower end abuts against the annular plate 8. When the threaded rod 14 continues to rotate, the sealing cover 2 pushes the annular plate 8 down so that the lower end of the sealing cover 2 can be inserted into the sterilization equipment body 1. At the same time, the annular plate 8 moves vertically on the sterilization equipment body 1. After the sealing cover 2 moves into place, the sealing ring 9 on the sealing cover 2 is precisely aligned with the annular sealing groove 11 on the sterilization equipment body 1. The annular plate 8 is initially flush with the end face of the sterilization equipment body 1, which can prevent dust from entering the annular sealing groove 11 and prevent the sealing ring 9 from being damaged by contact with impurities in the annular sealing groove 11 when it expands, thereby extending the service life of the sealing ring 9. Both the drain pipe 27 and the exhaust pipe 25 are equipped with electric valves, which are initially closed. When the sterilization cavity 10 discharges cold air, the exhaust pipe 25 is opened. At the same time, the steam generator 19 and the vacuum pump 26 operate. The steam generated by the steam generator 19 flows into the rotary joint 18 through a pipe, then passes through the hollow conveyor rod 3 and the rotating disk 4 in sequence, and finally is ejected through several downwardly inclined nozzles 5. The servo motor 17, in conjunction with gear transmission, drives the hollow conveyor rod 3 to rotate at high speed, causing the ejected steam to move tangentially downwards along the inner wall of the sterilization cavity 10, forming a downward spiral airflow. This forces the residual cold air in the sterilization cavity 10 to sink towards the center, reducing the dead zone of residual cold air. Then, the steam spraying is stopped, and the vacuum pump 26 is activated. The air pump 26 and the exhaust pipe 25 work together to quickly expel cold air, so that the sterilization cavity 10 is in a negative pressure state, improving exhaust efficiency. After the cold air in the sterilization cavity 10 is exhausted, steam continues to be sprayed. The valve on the exhaust pipe 25 is closed to prevent steam leakage. At this time, the steam can form a stable and powerful spiral vortex in the sterilization cavity 10, which can then wrap around the sterilization basket. The steam comes into contact with the items through the holes of the sterilization basket for sterilization. At the same time, the remaining steam can be quickly distributed in the sterilization cavity 10 to eliminate sterilization dead corners in the sterilization cavity 10 and improve the sterilization effect of the items. "Tangential downward" means that the steam is injected obliquely downward into the sterilization cavity 10 in a direction tangential to the inner wall of the sterilizer, thereby guiding the steam to form a vortex along the cavity wall. As steam is injected into the sterilization cavity 10, its internal pressure gradually increases, pushing the first piston plate 20 inside the first piston cylinder 6 upward, compressing the air inside the first piston cylinder 6. The first piston rod 21 slides on the first piston cylinder 6, and the first spring 22 stores force. The second piston cylinder 7 is pre-filled with oil, and the second piston plate 23 is in complete contact with the oil without any air residue. Furthermore, the sealing ring 9 is initially filled with oil, and the flow channel between the second piston cylinder 7 and the sealing ring 9 is also filled with oil. The first piston plate 20 moves within the first piston cylinder 6... When activated, air is compressed into several second piston cylinders 7 to push the second piston plate 23 vertically downward, compressing the oil inside the second piston cylinder 7 and causing the sealing ring 9 to expand so that it can extend into the annular sealing groove 11 on the sterilization equipment body 1 to achieve a sealing effect. When the internal pressure of the sterilization equipment body 1 is greater, the expansion volume of the sealing ring 9 is also greater, and the clamping force generated is greater, which can achieve the purpose of automatically adjusting the clamping force to enhance the sealing performance between the sealing cover 2 and the sterilization equipment body 1, avoid air leakage, and thus ensure the sterilization effect of the items.

[0035] After the sterilization equipment body 1 has completed sterilization, the pressure is released by opening the exhaust valve 38 and the water accumulated at the bottom of the sterilization cavity 10 is discharged by opening the valve on the drain pipe 27.

[0036] The nozzle 5 is tilted outward at 10° to 15° and slightly downward at 5° to 8° so that the steam can rotate in a vortex. The exhaust valve 38 is an electric exhaust valve. Several through holes are opened on the sterilization basket so that the steam can come into contact with the items for sterilization.

[0037] Example 2 is an improvement upon Example 1. For details, please refer to [link / reference]. Figures 1 to 8 The hollow insert rod 40 is elastically connected to the sterilization equipment body 1 via the second spring 28. A first circular rod 29 is slidably connected inside the hollow insert rod 40, and a third spring 30 is connected between the first circular rod 29 and the hollow insert rod 40.

[0038] The lower end of the hollow insert rod 40 is provided with an abutment strip 31. The abutment strip 31 is elastically connected to the sterilization equipment body 1 through the fifth spring 32. A hollow rod 39 is fixed on the abutment strip 31. The hollow rod 39 is slidably connected to the sterilization equipment body 1. A second circular rod 33 is rotatably connected to the hollow rod 39. The second circular rod 33 is fixedly connected to the arc-shaped guide plate 13.

[0039] The main body 1 of the sterilization equipment is provided with an arc-shaped groove 34 that is adapted to the arc-shaped guide plate 13, and the arc-shaped groove 34 is connected to the sterilization cavity 10.

[0040] refer to Figures 2 to 8 The sterilization basket placed inside the sterilization cavity 10 can easily cause localized turbulence when the steam vortex flows in the gap between the sterilization basket and the sterilization cavity 1. In the initial stage of sterilization, this turbulence can affect the cooling air removal effect, resulting in uneven distribution of steam heat. To improve the stability of the steam vortex and reduce local turbulence, several spirally distributed arc-shaped guide plates 13 are installed within the sterilization basket placement area to actively guide the steam vortex to rotate spirally, forming a stable spiral vortex. This suppresses turbulence and improves the intensity and uniformity of the vortex. When the annular plate 8 is pushed by the sealing cover 2, it can drive several hollow rods 40 to move synchronously. The second spring 28 stores force, causing the lower end of the hollow rod 40 to contact the corresponding contact strip 31, so that the contact strip 31 moves horizontally within the sterilization equipment body 1. The fifth spring 32 stores force, and at the same time, the hollow rod 39 extends into the sterilization cavity 10, driving the spirally distributed arc-shaped guide plates 13 to extend out from the arc-shaped groove 34. This can achieve the purpose of guiding the steam vortex, effectively improving the stability and uniformity of the steam vortex, and further improving the steam distribution and sterilization effect.

[0041] Example 3 is an improvement upon Example 2. For details, please refer to [link / reference]. Figures 1 to 8 The upper end of the abutment strip 31 is slidably connected to an abutment piece 35. A fourth spring 36 is connected between the abutment piece 35 and the abutment strip 31. An abutment frame 12 is fixed on the abutment piece 35. An abutment block 37 is fixed at one end of the second circular rod 33. The abutment block 37 abuts against the abutment frame 12.

[0042] refer to Figures 2 to 8 In the later stages of sterilization, to further improve the penetration of steam into the items, as the second piston plate 23 continues to move within the second piston cylinder 7, the second piston rod 24 passes through the annular plate 8, and its lower end abuts against the first circular rod 29 inside the hollow insert rod 40. At this time, after the lower end of the hollow insert rod 40 has completed its contact with the contact strip 31, it then abuts against the contact plate 35. When the second piston rod 24 pushes the first circular rod 29 downward, the third spring 30 stores force and pushes the contact plate 35 to slide vertically on the contact strip 31. The fourth spring 36 stores energy, which enables the contact frame 12 on the contact plate 35 to move down synchronously, so that the contact frame 12 and the contact block 37 come into contact, so that the second circular rod 33 deflects on the hollow rod 39, automatically adjusting the angle of the arc guide plate 13 in the sterilization cavity 10, so that the spiral downward vortex is transformed into turbulence, which can eliminate uneven heating, local overheating or underheating, and allow high temperature steam to continuously wash the surface of the items, improving penetration and heating effect, while also improving the drying effect of the items.

[0043] Among them, the servo motor 17, steam generator 19, vacuum pump 26, exhaust valve 38 and electronic valve are all electrically connected to the controller via wires.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A medical steam sterilization device, comprising a sterilization device body (1), characterized in that: A rotatable sealing cover (2) is provided on the top of the main body (1) of the sterilization equipment. A hollow conveying rod (3) is rotatably connected to the sealing cover (2). A rotating disk (4) is fixed at the lower end of the hollow conveying rod (3). Several spray holes (5) are opened on the rotating disk (4). A first piston cylinder (6) and several second piston cylinders (7) are fixed on the sealing cover (2). An expandable sealing ring (9) is installed on one side of the sealing cover (2). The upper end of the sterilization equipment body (1) is slidably connected with an annular plate (8), and several hollow inserts (40) are fixed on the annular plate (8). The sterilization equipment body (1) is provided with a sterilization cavity (10) and an annular sealing groove (11). Several spirally distributed arc-shaped guide plates (13) are provided in the sterilization cavity (10).

2. The medical steam sterilization equipment according to claim 1, characterized in that: A threaded rod (14) is rotatably connected to the sealing cover (2), and a rotating bracket (15) is threadedly connected to the threaded rod (14). One end of the rotating bracket (15) is rotatably connected to the sterilization equipment body (1), and a rotating wheel (16) is fixed to the upper end of the threaded rod (14).

3. The medical steam sterilization equipment according to claim 1, characterized in that: A servo motor (17) for driving the hollow conveying rod (3) to rotate is fixed on the sealing cover (2). A rotary joint (18) is connected to the hollow conveying rod (3). A steam generator (19) is fixed on the sterilization equipment body (1). The rotary joint (18) is connected to the steam generator (19) through a pipe. An exhaust valve (38) is provided on the sealing cover (2).

4. The medical steam sterilization equipment according to claim 1, characterized in that: A first piston plate (20) is slidably connected to the first piston cylinder (6), and a first piston rod (21) is fixed on the first piston plate (20). The first piston rod (21) is elastically connected to the first piston cylinder (6) through a first spring (22). The first piston cylinder (6) is connected to several second piston cylinders (7) through a pipe.

5. The medical steam sterilization equipment according to claim 1, characterized in that: The second piston cylinder (7) is slidably connected to the second piston plate (23), and the second piston plate (23) is fixed with the second piston rod (24). The second piston rod (24) is slidably connected to the sealing cover (2), and the second piston cylinder (7) is connected to the sealing ring (9) through the flow channel.

6. The medical steam sterilization equipment according to claim 5, characterized in that: The lower end of the sterilization cavity (10) is provided with an exhaust pipe (25) and a drain pipe (27), and the lower end of the exhaust pipe (25) is connected to a vacuum pump (26).

7. The medical steam sterilization equipment according to claim 1, characterized in that: The hollow insert (40) is elastically connected to the sterilization equipment body (1) via a second spring (28). A first circular rod (29) is slidably connected inside the hollow insert (40), and a third spring (30) is connected between the first circular rod (29) and the hollow insert (40).

8. The medical steam sterilization equipment according to claim 1, characterized in that: The lower end of the hollow insert (40) is provided with an abutment strip (31). The abutment strip (31) is elastically connected to the sterilization equipment body (1) through a fifth spring (32). A hollow rod (39) is fixed on the abutment strip (31). The hollow rod (39) is slidably connected to the sterilization equipment body (1). A second circular rod (33) is rotatably connected to the hollow rod (39). The second circular rod (33) is fixedly connected to the arc-shaped guide plate (13).

9. The medical steam sterilization equipment according to claim 1, characterized in that: The sterilization equipment body (1) is provided with an arc-shaped groove (34) adapted to the arc-shaped guide plate (13), and the arc-shaped groove (34) is connected to the sterilization cavity (10).

10. The medical steam sterilization equipment according to claim 8, characterized in that: The upper end of the abutment strip (31) is slidably connected to an abutment piece (35), and a fourth spring (36) is connected between the abutment piece (35) and the abutment strip (31). An abutment frame (12) is fixed on the abutment piece (35), and an abutment block (37) is fixed at one end of the second circular rod (33). The abutment block (37) abuts against the abutment frame (12).

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