A circulating steam sterilization device for medical consumable cleaning

Abstract

The present application relates to the technical field of medical consumable sterilization, in particular to a circulating steam sterilization device for cleaning medical consumables, comprising a sterilization tank, vacuum pumps arranged on the left and right sides of the sterilization tank, and a condenser for recycling and reusing steam, and a driving device arranged between the sterilization tank and the condenser. The circulating steam sterilization device for cleaning medical consumables is controlled by the time sequence linkage of the rotating frame and the exhaust group, forming a composite jet mechanism of vertical and lateral steam during the sterilization process. When the rotating frame drives the consumables to rotate to a predetermined angle, the air pipe is triggered to move downward and drive the flap to rotate, so that the steam is laterally injected through the pipe hole when the consumables reach the optimal action position, and at the same time, the inverted funnel-shaped air holes produce vertical steam flow, and the two cooperate to form a three-dimensional penetrating sterilization network, which improves the contact area of the consumables and the steam and realizes full coverage sterilization.

Description

Technical Field

[0001] This invention relates to the field of medical consumables sterilization technology, and more specifically, to a circulating steam sterilization device for cleaning medical consumables. Background Technology

[0002] Medical consumable steam sterilization equipment is a core component of hospital infection control, primarily using high-temperature saturated steam to kill microorganisms. Its working principle utilizes the large amount of latent heat released during steam condensation, causing microbial proteins to denature and coagulate, achieving sterilization. It allows for precise control of temperature (typically 121℃-134℃), pressure, and time, and is compatible with various medical consumables such as surgical instruments and dressings.

[0003] Patent application number CN202421427210.4 discloses a high-pressure steam sterilization device, including a sterilization chamber. An air inlet pipe is fixedly installed on one side of the outer wall of the sterilization chamber. A drive motor is movably installed on the top of the sterilization chamber. The sterilization chamber has a number of support plates inside. A push plate is movably installed inside the sterilization chamber. A guide plate is fixedly installed inside the cavity. By starting the drive motor, the push plate is moved, and the push plate pushes the support plates outward, so that the items are located at the outside of the sterilization chamber after steam sterilization, without the need for personnel to remove the items from inside the sterilization chamber.

[0004] However, traditional devices mostly use a one-way steam injection mode, which makes it difficult to form a three-dimensional sterilization network. For complex instruments, such as endoscopic lumens and hinged surgical instruments, the steam coverage is insufficient, resulting in frequent sterilization dead spots. In order to achieve the standard sterilization effect, the processing time needs to be extended to more than 45 minutes, which increases energy consumption. Secondly, traditional equipment generally adopts an open water circulation design, which relies on manual water replenishment and interruption of operation. The water consumption per sterilization is high, and the equipment utilization rate is low.

[0005] In view of this, we propose a circulating steam sterilization device for cleaning medical consumables. Summary of the Invention

[0006] The purpose of this invention is to provide a circulating steam sterilization device for cleaning medical consumables, which solves the problems mentioned in the background art by using a timed linkage control between the rotating frame and the exhaust group and a vertical pumping mechanism formed by the reciprocating screw driving the piston plate to move up and down.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A circulating steam sterilization device for cleaning medical consumables includes a sterilization tank, vacuum pumps disposed on the left and right sides of the sterilization tank, and a condenser for recovering and reusing steam. A drive device is also provided between the sterilization tank and the condenser.

[0009] The sterilization tank includes a steam-generating tank body, a sleeve, a rotating frame disposed inside the sleeve, and several exhaust groups regularly distributed on the outer wall of the sleeve. Several side openings are provided on the inner wall of the sleeve.

[0010] This feature allows steam to be blown onto the consumables from the side through side openings, increasing the contact area between the steam and the consumables.

[0011] The rotating frame includes a ring gear driven by a drive device and several hanging rods disposed on the inner wall of the ring gear.

[0012] This feature uses a ring gear to rotate the consumables suspended on the hanging rod, thus achieving dynamic sterilization.

[0013] The exhaust assembly includes a vent pipe with a hemispherical top that can move up and down, a frame that moves with the vent pipe, a flap that is rotatably connected to the frame, a shaft tooth that is engaged with the end shaft of the flap, and a frame tooth that is located on the outside of the frame.

[0014] When the vent pipe moves downward, this feature creates a passage between its orifice and the side opening. Simultaneously, the meshing of the frame teeth and shaft teeth drives the flap to rotate, allowing steam inside the tank to be transported through the vent pipe and then sprayed laterally onto the surface of the medical consumables through the orifice, achieving full-coverage sterilization.

[0015] The drive unit includes a motor and a transmission assembly for driving the ring gear to rotate using the motor power.

[0016] In the technical solution of the present invention, a number of regularly distributed air holes with an inverted funnel-shaped cross-section are provided on the circular plate on the top surface of the tank body. A number of regularly distributed connecting holes are provided on the outer side of the air holes on the top surface of the tank body. A reinforcing ring is integrally formed on the outer side of the top opening of the sleeve. A cylinder opening is provided inside the sleeve at the position corresponding to the number of side openings. A number of external grooves communicating with the cylinder openings are provided on the outer wall of the sleeve. An inner ring groove communicating with the top of the number of cylinder openings is provided on the inner wall of the sleeve. The positions of the number of cylinder openings correspond one-to-one with the positions of the number of connecting holes.

[0017] This design allows for full contact between the medical consumables and the steam. An inverted funnel-shaped vent is created on the top surface of the tank, and several side openings are made on the sleeve, thereby increasing the contact area between the steam and the medical consumables.

[0018] In the technical solution of the present invention, the sterilization tank further includes a cover plate that is fixedly connected to the top surface of the sleeve by bolts. A pressure gauge, a pressure relief valve and a lifting handle are fixedly connected to the top surface of the cover plate by bolts. The pressure relief valve on the top surface of the cover plate is sleeved at the bottom end of the connecting pipe on the outside of the condenser.

[0019] This feature allows operators to observe the pressure gauge on the top surface of the cover and control the opening and closing of the pressure relief valve, thereby ensuring that the internal pressure of the tank remains within a stable range and ensuring the safety of the sterilization process.

[0020] In the technical solution of the present invention, the rotating frame further includes a rotating shaft rotatably connected to the top surface of the tank, and the two ends of the hanging rod are respectively welded and fixed to the rotating shaft and the inner wall of the ring tooth. The top surface of the ring tooth is provided with an arc-shaped groove that runs vertically through the space between several hanging rods.

[0021] This feature uses a ring gear to rotate the consumables suspended on the hanging rod, thus achieving dynamic sterilization.

[0022] In the technical solution of the present invention, the exhaust assembly further includes an outer protruding plate that is snapped and fixed to the outer wall of the vent pipe and slidably connected to the inside of the outer slot, and a spring that is welded and fixed to the bottom surface of the outer protruding plate. The other end of the spring is welded and fixed to the bottom surface of the slot wall of the outer slot.

[0023] In the technical solution of the present invention, the top hemisphere of the vent pipe extends above the opening of the cylinder, and the bottom end of the vent pipe extends below the connecting hole. The square frame is snapped and fixed to the vent pipe. The flap is rotatably connected to the inner wall of the square frame. The shaft tooth meshes with the frame tooth, and the frame tooth is snapped and fixed to the inner top surface of the tank.

[0024] The above settings ensure that the side-blown steam flow maintains the optimal working distance from the instrument surface. The arc-shaped groove ensures that the steam injection is activated only when the consumable moves with the rotating frame to the area corresponding to the side opening.

[0025] In the technical solution of the present invention, the driving device further includes a housing disposed below the motor, an external bracket fixedly connected to the outside of the motor by bolts, a reciprocating lead screw disposed on the output shaft of the motor, a piston plate sleeved on the outside of the reciprocating lead screw, and a return pipe and a suction pipe respectively clamped and fixed to the left and right ends of the housing.

[0026] In the technical solution of the present invention, the inside of the housing is provided with a cavity for the piston plate to move, the external frame is fixedly connected to the tube wall of the condenser by bolts, and the reciprocating screw is coaxially connected to the output shaft of the motor and its bottom end is rotatably connected to the bottom surface of the cavity inside the housing.

[0027] In the technical solution of the present invention, the portions of the liquid extraction pipe and the liquid return pipe connected to the tank are respectively provided with an inlet valve and an outlet valve. The end of the liquid extraction pipe is connected to the bottom end of the area where the condensate is stored in the condenser, and the end of the liquid return pipe is connected to the position near the top of the tank.

[0028] The above setup, through the movement of the piston plate within the cavity, in conjunction with the liquid extraction pipe and the liquid return pipe, forms a vertical pumping mechanism, thereby creating a water circulation system to ensure the generation of steam within the tank.

[0029] In the technical solution of the present invention, the transmission assembly includes two parallel pulleys, a synchronous belt sleeved between the two pulleys, a rotating shaft rotatably connected to the top surface of the tank, and a drive tooth fixedly connected to the top of the rotating shaft by a snap pin and meshing with the ring tooth, wherein one pulley is snapped and fixed to the outer wall of the reciprocating lead screw, and the other pulley is snapped and fixed to the outer wall of the rotating shaft.

[0030] This setup uses a transmission assembly consisting of pulleys and a synchronous belt to transmit the motor's power to the ring gear, causing it to rotate.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] 1. This circulating steam sterilization device for cleaning medical consumables, through the time-sequential linkage control of the rotating frame and the exhaust group, forms a composite steam injection mechanism of vertical and lateral steam during the sterilization process. When the rotating frame drives the consumables to rotate to a predetermined angle, it triggers the vent pipe to move down and drives the flap to rotate, so that the steam is injected laterally through the pipe hole when the consumables reach the optimal working position. At the same time, the inverted funnel-shaped air hole generates a vertical steam flow. The two work together to form a three-dimensional penetrating sterilization network, increasing the contact area between the consumables and the steam, and achieving full-coverage sterilization.

[0033] 2. The circulating steam sterilization device for cleaning medical consumables uses a motor to drive the rotating frame to rotate, while a reciprocating screw drives the piston plate to move up and down in the cavity of the chamber to form a vertical pumping mechanism. After recovering the clean condensate from the condenser, it automatically replenishes water to the tank, thus constructing a circulating system for automatic condensate recovery and re-evaporation. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 This is a cross-sectional schematic diagram of the sterilization tank in this invention;

[0036] Figure 3 This is a cross-sectional view of the tank body in this invention;

[0037] Figure 4 This is a cross-sectional schematic diagram of the sleeve structure in this invention;

[0038] Figure 5 For the present invention Figure 4 An enlarged schematic diagram of part A in the middle;

[0039] Figure 6 This is a schematic diagram of the rotating frame in this invention;

[0040] Figure 7This is a cross-sectional schematic diagram of the exhaust assembly in this invention;

[0041] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of part B;

[0042] Figure 9 This is a schematic diagram of the vacuum pump in this invention;

[0043] Figure 10 This is a schematic diagram of the condenser in this invention;

[0044] Figure 11 This is a cross-sectional schematic diagram of the drive device in this invention;

[0045] Figure 12 This is a schematic diagram of the transmission assembly in this invention;

[0046] Explanation of reference numerals in the attached figures:

[0047] 100. Sterilization tank; 110. Tank body; 111. Vent; 112. Connecting hole; 120. Sleeve; 121. Reinforcing ring; 122. Opening in the cylinder; 123. Side opening; 124. External groove; 125. Inner ring groove; 130. Cover plate; 140. Rotating frame; 141. Rotating shaft; 142. Ring tooth; 1420. Arc groove; 143. Hanging rod; 150. Exhaust assembly; 151. Vent pipe; 1510. Pipe hole; 152. Square frame; 153. Flip plate; 154. Shaft tooth; 155. Frame tooth; 156. External convex plate; 157. Spring;

[0048] 200. Vacuum pump;

[0049] 300. Condenser;

[0050] 400. Drive unit; 410. Housing; 420. Motor; 430. External frame; 440. Reciprocating screw; 450. Piston plate; 460. Transmission assembly; 461. Pulley; 462. Synchronous belt; 463. Rotating shaft; 464. Drive gear; 470. Liquid extraction pipe; 480. Liquid return pipe. Detailed Implementation

[0051] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0052] Please see Figures 1-12 As shown, this embodiment provides a technical solution:

[0053] A circulating steam sterilization device for cleaning medical consumables includes a sterilization tank 100, a vacuum pump 200 and a condenser 300 disposed on the left and right sides of the sterilization tank 100, and a drive device 400 disposed between the sterilization tank 100 and the condenser 300.

[0054] Please see Figures 2-5 As shown, in this embodiment, the sterilization tank 100 includes a tank body 110 for generating steam, a sleeve 120, a rotating frame 140 disposed inside the sleeve 120, and several exhaust groups 150 regularly distributed on the outer wall of the sleeve 120. Several side openings 123 are provided on the inner wall of the sleeve 120.

[0055] Specifically, the top circular plate of the tank body 110 has several regularly distributed air holes 111 with an inverted funnel-shaped cross-section. The top surface of the tank body 110 has several regularly distributed connecting holes 112 on the outside of the air holes 111. The top opening of the sleeve 120 has an integrally formed reinforcing ring 121 on the outside. The sleeve 120 has cylindrical openings 122 at positions corresponding to several side openings 123 inside. The outer wall of the sleeve 120 has several external grooves 124 that communicate with the cylindrical openings 122. The inner wall of the sleeve 120 has an inner ring groove 125 that communicates with the top of the cylindrical openings 122. The positions of the cylindrical openings 122 correspond one-to-one with the positions of the connecting holes 112.

[0056] Furthermore, the tank 110 provides a storage area for clean water and generates steam after the external heating device is turned on. The vent 111 allows steam to pass through, the connecting hole 112 provides a placement area for the structure in the exhaust assembly 150, the reinforcing ring 121 of the sleeve 120 provides a placement platform for the cover plate 130, the cylinder opening 122 and the outer slot 124 provide a movement area for the exhaust assembly 150, the side opening 123 allows steam to blow onto the consumable surface from the side, and the inner ring groove 125 provides a rotation area for the internal structure of the rotating frame 140. This arrangement allows the medical consumables to fully contact the steam. A vent 111 with an inverted funnel-shaped cross section is opened on the top surface of the tank 110, and several side openings 123 are opened in the sleeve 120, thereby increasing the contact area between the steam and the medical consumables.

[0057] Please see Figures 1-2 As shown, in this embodiment, the sterilization tank 100 also includes a cover plate 130 that is fixedly connected to the top surface of the sleeve 120 by bolts. A pressure gauge, a pressure relief valve and a lifting handle are fixedly connected to the top surface of the cover plate 130 by bolts. The pressure relief valve on the top surface of the cover plate 130 is sleeved on the bottom end of the connecting pipe on the outside of the condenser 300.

[0058] Furthermore, the cover plate 130 is used to ensure the airtightness of the internal structure of the sterilization tank 100. This setting allows the operator to observe the pressure gauge on the top surface of the cover plate 130 and control the opening and closing of the pressure relief valve, thereby ensuring that the internal pressure of the tank 110 is always kept within a stable range, thus ensuring the safety of the sterilization process.

[0059] Please see Figure 6 As shown, in this embodiment, the rotating frame 140 includes a ring tooth 142 driven by a driving device 400 and a plurality of hanging rods 143 disposed on the inner wall of the ring tooth 142.

[0060] Specifically, the rotating frame 140 also includes a rotating shaft 141 rotatably connected to the top surface of the tank body 110. The two ends of the hanging rod 143 are welded and fixed to the rotating shaft 141 and the inner wall of the ring tooth 142, respectively. The top surface of the ring tooth 142 has an arc-shaped groove 1420 that runs vertically through the space between several hanging rods 143.

[0061] Furthermore, several round holes are provided on the hanging rod 143 so that medical consumables can be suspended above the container 110. This feature causes the ring teeth 142 to rotate the consumables suspended on the hanging rod 143, thus achieving dynamic sterilization.

[0062] Please see Figures 7-8 As shown, in this embodiment, the exhaust assembly 150 includes a vent pipe 151 with a hemispherical top that can move up and down, a frame 152 that moves with the vent pipe 151, a flap 153 rotatably connected to the frame 152, a shaft tooth 154 engaged with the end shaft of the flap 153, and a frame tooth 155 disposed on the outside of the frame 152.

[0063] Specifically, the exhaust assembly 150 also includes an outer protruding plate 156 that is snapped and fixed to the outer wall of the vent pipe 151 and slidably connected to the inside of the outer slot 124, and a spring 157 that is welded and fixed to the bottom surface of the outer protruding plate 156. The other end of the spring 157 is welded and fixed to the bottom surface of the slot wall of the outer slot 124.

[0064] Furthermore, the top hemisphere of the vent pipe 151 extends above the opening 122 of the cylinder, and the bottom end of the vent pipe 151 extends below the connecting hole 112. The frame 152 is snapped and fixed to the vent pipe 151. The flap 153 is rotatably connected to the inner wall of the frame 152. The shaft tooth 154 meshes with the frame tooth 155, and the frame tooth 155 is snapped and fixed to the inner top surface of the tank 110.

[0065] Furthermore, during the rotation of the ring tooth 142, its bottom surface abuts against the hemisphere at the top of the vent pipe 151, thereby squeezing the vent pipe 151 to move down into the interior of the cylinder opening 122, and compressing the spring 157 through the outer protrusion plate 156 so that it contracts under force, thereby generating an upward reaction force.

[0066] Furthermore, when the vent pipe 151 moves downward, its pipe hole 1510 forms a passage with the side opening 123. Simultaneously, the frame teeth 155 mesh with the shaft teeth 154, driving the flap 153 to rotate. This allows the steam inside the tank 110 to be transported through the vent pipe 151 and then laterally sprayed onto the surface of the medical consumables through the pipe hole 1510, achieving full-coverage sterilization. When the arc-shaped groove 1420 of the ring teeth 142 moves above the cylinder opening 122, the elastic force of the spring 157 is... The protruding plate 156 pushes the vent pipe 151 upward, allowing the top of the vent pipe 151 to extend back above the cylinder opening 122 and inside the arc groove 1420, thus misaligning the side opening 123 with the pipe hole 1510. This setting ensures that the side-blown steam flow maintains the optimal working distance with the instrument surface. Through the setting of the arc groove 1420, the steam injection is activated only when the consumable moves with the rotating frame 140 to the area corresponding to the side opening 123.

[0067] Please see Figure 11 As shown, in this embodiment, the drive device 400 includes a motor 420 and a transmission assembly 460 for powering the motor 420 to rotate the ring gear 142.

[0068] Specifically, the drive device 400 also includes a housing 410 located below the motor 420, an external bracket 430 fixedly connected to the outside of the motor 420 by bolts, a reciprocating lead screw 440 located on the output shaft of the motor 420, a piston plate 450 sleeved on the outside of the reciprocating lead screw 440, and a return pipe 480 and a suction pipe 470 respectively clamped and fixed to the left and right ends of the housing 410.

[0069] Furthermore, the housing 410 has an internal cavity for the piston plate 450 to move, and the external bracket 430 is fixedly connected to the tube wall of the condenser 300 by bolts. The reciprocating screw 440 is coaxially connected to the output shaft of the motor 420 and its bottom end is rotatably connected to the bottom surface of the internal cavity of the housing 410.

[0070] Furthermore, the parts of the liquid extraction pipe 470 and the liquid return pipe 480 that connect to the tank body 410 are respectively equipped with an inlet valve and an outlet valve. The end of the liquid extraction pipe 470 is connected to the bottom of the area in the condenser 300 where the condensate is stored, and the end of the liquid return pipe 480 is connected to the position near the top of the tank body 110.

[0071] Furthermore, the rotation of the reciprocating screw 440 will drive the piston plate 450 to move up and down in the cavity of the housing 410. When the piston plate 450 is in the upper stroke, it draws the clean water pre-stored at the bottom of the condenser 300 into the cavity of the housing 410 through the liquid extraction pipe 470. When it is in the lower stroke, it presses the water into the tank 110 through the liquid return pipe 480. When the piston plate 450 moves to the lowest position, its bottom surface is higher than the pipe opening height of the liquid extraction pipe 470 and the liquid return pipe 480. This setting, through the movement of the piston plate 450 in the cavity, in conjunction with the liquid extraction pipe 470 and the liquid return pipe 480, forms a vertical pumping mechanism, which will form a water circulation system to ensure the generation of steam in the tank 110.

[0072] Please see Figure 12 As shown, in this embodiment, the transmission assembly 460 includes two parallel pulleys 461, a synchronous belt 462 sleeved between the two pulleys 461, a rotating shaft 463 rotatably connected to the top surface of the tank body 110, and a drive gear 464 fixedly connected to the top of the rotating shaft 463 by a snap pin and meshing with the ring gear 142. One pulley 461 is snapped and fixed to the outer wall of the reciprocating screw 440, and the other pulley 461 is snapped and fixed to the outer wall of the rotating shaft 463.

[0073] Furthermore, the motor 420 drives the reciprocating screw 440 to rotate, and after the power is transmitted through the pulley 461 and the synchronous belt 462, the drive tooth 464 at the end of the rotating shaft 463 meshes with the ring tooth 142, so that the hanging rod 143 can rotate at a constant speed. This setting transmits the power of the motor 420 to the ring tooth 142 through the transmission group 460 composed of the pulley 461 and the synchronous belt 462, so that it can rotate.

[0074] Finally, it should be noted that the vacuum pump 200, condenser 300 and motor 420 involved in this invention are all general standard parts or components known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, the vacuum pump 200, condenser 300 and motor 420 are connected to an external power source through wires. The specific connection method should refer to the working principle in this invention. The electrical components are electrically connected in the order of operation. The detailed connection methods are all technologies known in the art.

[0075] When using the circulating steam sterilization device for cleaning medical consumables of the present invention, the medical consumables are suspended on the hanging rod 143 of the rotating frame 140, the cover plate 130 is sealed and installed on the top of the sleeve 120, and the collection pipe of the condenser 300 is connected to the pressure relief valve interface of the cover plate 130.

[0076] Next, after water is injected into the tank 110, the vacuum pump 200 is started to establish a negative pressure environment. The water temperature is raised to the boiling point through the external heating system. Steam forms a vertical airflow through the vent 111 of the tank 110 to sterilize the consumables on the rotating frame 140.

[0077] Subsequently, when the drive device 400 is started, the motor 420 drives the reciprocating screw 440 to rotate. After the power is transmitted through the pulley 461 and the synchronous belt 462, the drive tooth 464 at the end of the rotating shaft 463 meshes with the ring tooth 142, so that the hanging rod 143 can rotate at a constant speed.

[0078] At this time, during the rotation of the ring tooth 142, when the arc groove 1420 is misaligned with the opening 122 of the cylinder, its bottom surface abuts against the hemisphere at the top of the vent pipe 151, and the vent pipe 151 is squeezed to move down into the interior of the opening 122 of the cylinder, and the spring 157 is squeezed by the outer protrusion plate 156 to contract after being subjected to force, thereby generating an upward reaction force.

[0079] After the vent pipe 151 is lowered, its pipe hole 1510 and the side opening 123 form a passage at this time. At the same time, the frame tooth 155 and the shaft tooth 154 mesh to drive the flap 153 to rotate, so that the steam in the tank 110 is transported through the vent pipe 151 and then sprayed laterally onto the surface of the medical consumables through the pipe hole 1510 to achieve full coverage sterilization.

[0080] Meanwhile, the rotation of the reciprocating screw 440 will drive the piston plate 450 to move up and down in the cavity of the housing 410 to form a vertical pumping mechanism. When the piston plate 450 is in the upper stroke, it will draw the clean water pre-stored at the bottom of the condenser 300 into the cavity of the housing 410 through the liquid extraction pipe 470. When it is in the lower stroke, it will press the water into the tank 110 through the liquid return pipe 480 to form a water circulation system and ensure steam generation.

[0081] After sterilization, the heat source is cut off. Once the temperature and pressure inside the tank 110 return to normal, the cover 130 is opened and closed to remove the medical consumables, which are then transferred to the drying process to treat the surface condensate.

[0082] The foregoing description of specific exemplary embodiments of the invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the invention, as well as various different choices and variations. The scope of the invention is intended to be defined by the specification and its equivalents.

Claims

1. A circulating steam sterilization device for cleaning medical consumables, comprising a sterilization tank, vacuum pumps disposed on the left and right sides of the sterilization tank, and a condenser for recovering and reusing steam, characterized in that: A drive device is also provided between the sterilization tank and the condenser; The sterilization tank includes a steam-generating tank body, a sleeve, a rotating frame disposed inside the sleeve, and several exhaust groups regularly distributed on the outer wall of the sleeve. Several side openings are provided on the inner wall of the sleeve. The rotating frame includes a ring tooth driven by a drive device and several hanging rods disposed on the inner wall of the ring tooth. The ring tooth drives the consumables suspended on the hanging rods to rotate, forming dynamic sterilization. The exhaust assembly includes a vent pipe with a hemispherical top that can move up and down, a square frame that moves with the vent pipe, a flap that is rotatably connected to the square frame, a shaft tooth that is engaged with the end shaft of the flap, and a frame tooth that is set on the outside of the square frame. When the vent pipe moves down, its pipe hole and the side opening form a passage. At the same time, the frame tooth and the shaft tooth mesh to drive the flap to rotate, so that the steam in the tank is transported through the vent pipe and then sprayed laterally onto the surface of the medical consumables through the pipe hole to achieve full coverage sterilization. The drive device includes a motor and a transmission assembly for driving the ring gear to rotate using the power of the motor. The drive device also includes a housing located below the motor, an external frame fixedly connected to the outside of the motor by bolts, a reciprocating lead screw located on the output shaft of the motor, a piston plate sleeved on the outside of the reciprocating lead screw, and a return pipe and a suction pipe respectively clamped and fixed to the left and right ends of the housing. The housing has an internal cavity for the piston plate to move. The external frame is fixed to the tube wall of the condenser by bolts. The reciprocating screw is coaxially connected to the motor output shaft and its bottom end is rotatably connected to the bottom surface of the internal cavity of the housing. The portions of the liquid extraction pipe and the liquid return pipe connected to the tank are respectively equipped with an inlet valve and an outlet valve. The end of the liquid extraction pipe is connected to the bottom of the area in the condenser where condensate is stored, and the end of the liquid return pipe is connected to the tank near the top.

2. The circulating steam sterilization device for cleaning medical consumables according to claim 1, characterized in that: The top circular plate of the tank body has several regularly distributed air holes with an inverted funnel-shaped cross-section. The top surface of the tank body has several regularly distributed connecting holes on the outside of the air holes. The top opening of the sleeve has an integrally formed reinforcing ring on the outside. The sleeve has cylinder openings at the positions corresponding to the side openings. The outer wall of the sleeve has several external grooves that communicate with the cylinder openings. The inner wall of the sleeve has an inner ring groove that communicates with the top of the cylinder openings. The positions of the cylinder openings correspond one-to-one with the positions of the connecting holes.

3. The circulating steam sterilization device for cleaning medical consumables according to claim 1, characterized in that: The sterilization tank also includes a cover plate that is bolted to the top surface of the sleeve. A pressure gauge, a pressure relief valve, and a lifting handle are bolted to the top surface of the cover plate. The pressure relief valve on the top surface of the cover plate is fitted onto the bottom end of the connecting pipe on the outside of the condenser.

4. The circulating steam sterilization device for cleaning medical consumables according to claim 1, characterized in that: The rotating frame also includes a rotating shaft rotatably connected to the top surface of the tank. The two ends of the hanging rod are welded and fixed to the rotating shaft and the inner wall of the ring tooth, respectively. The top surface of the ring tooth has an arc-shaped groove that runs vertically through the space between several hanging rods.

5. The circulating steam sterilization device for cleaning medical consumables according to claim 2, characterized in that: The exhaust assembly also includes an outer protruding plate that is snapped and fixed to the outer wall of the vent pipe and slidably connected to the inside of the outer slot, and a spring that is welded and fixed to the bottom surface of the outer protruding plate. The other end of the spring is welded and fixed to the bottom surface of the slot wall of the outer slot.

6. The circulating steam sterilization device for cleaning medical consumables according to claim 2, characterized in that: The top hemisphere of the vent pipe extends above the opening in the cylinder, while the bottom of the vent pipe extends below the connecting hole. The frame is snapped and fixed to the vent pipe. The flap is rotatably connected to the inner wall of the frame. The shaft teeth mesh with the frame teeth, and the frame teeth are snapped and fixed to the inner top surface of the tank.

7. The circulating steam sterilization device for cleaning medical consumables according to claim 1, characterized in that: The transmission assembly includes two parallel pulleys, a synchronous belt sleeved between the two pulleys, a rotating shaft rotatably connected to the top surface of the tank, and a drive gear fixedly connected to the top of the rotating shaft by a locking pin and meshing with the ring gear. One pulley is locked to the outer wall of the reciprocating lead screw, and the other pulley is locked to the outer wall of the rotating shaft.

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