Circulating steam sterilization device for cleaning medical consumables

Abstract

The invention relates to the technical field of sterilization of medical consumables, in particular to a circulating steam sterilization device for cleaning medical consumables, which comprises a sterilization tank, vacuum pumps arranged on the left side and the right side of the sterilization tank and a condenser for recycling and reusing steam, and a driving device is arranged between the sterilization tank and the condenser. According to the circulating steam sterilization device for cleaning the medical consumables, through sequential linkage control of the rotating frame and the exhaust set, a vertical and lateral steam composite injection mechanism is formed in the sterilization process, and when the rotating frame drives the consumables to rotate to a preset angle, the breather pipe is triggered to move downwards and drive the turning plate to rotate; the steam is laterally jetted through the pipe holes when the consumable reaches the optimal action position, meanwhile, the inverted-funnel-shaped air holes generate vertical steam flow, a three-dimensional penetrating type sterilization network is formed through cooperation of the pipe holes and the inverted-funnel-shaped air holes, the contact area of the consumable and the steam is increased, and full-coverage sterilization is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of sterilization of medical consumables, in particular to a circulating steam sterilization device for cleaning medical consumables. Background Art

[0002] Steam sterilization systems for medical consumables are core equipment for hospital infection control, primarily using high-temperature saturated steam to kill microorganisms. They operate by utilizing the large amount of latent heat released by steam during condensation, denaturing and coagulating microbial proteins, achieving a sterilization effect. They can precisely control temperature (typically 121°C-134°C), pressure, and time, making them suitable for a variety of medical consumables, including surgical instruments and dressings.

[0003] The patent with application number CN202421427210.4 discloses a high-pressure steam sterilization device, including a sterilization box, an air inlet pipe fixedly installed on one side of the outer wall of the sterilization box, a drive motor movably installed on the top of the sterilization box, a number of carrying plates provided inside the sterilization box, a push plate movably installed inside the sterilization box, and a guide plate fixedly installed inside the cavity. By starting the drive motor, the push plate is driven to move, and the push plate pushes the carrying plate outward, so that the items are located at the outer end of the sterilization box after steam sterilization, and there is no need for personnel to take out the items inside the sterilization box.

[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 structure instruments, such as endoscope lumens and hinged surgical tools, the steam coverage rate is insufficient, resulting in frequent sterilization dead corners. In order to achieve the standard sterilization effect, the processing time needs to be extended to more than 45 minutes, thereby increasing energy consumption; secondly, traditional equipment generally adopts an open water circulation design, relying on manual water replenishment to interrupt operations, resulting in high water consumption for a single sterilization and low equipment utilization.

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

[0006] The purpose of the present invention is to provide a circulating steam sterilization device for cleaning medical consumables, which solves the problems raised in the above background technology by means of a vertical pumping mechanism formed by the sequential linkage control of the rotating frame and the exhaust group and the reciprocating screw driving the piston plate to move up and down.

[0007] To achieve the above object, the present invention provides the following technical solutions: 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 recovering and reusing steam, and a driving device is further provided between the sterilization tank and the condenser; The sterilization tank includes a tank body for generating steam, a sleeve, a rotating frame arranged inside the sleeve, and a plurality of exhaust groups regularly distributed on the outer wall of the sleeve. A plurality of side openings are opened on the inner wall of the sleeve.

[0008] This setting allows steam to blow toward the filament from the side through the side openings, increasing the contact area between the steam and the filament.

[0009] The rotating frame comprises a ring gear driven by a driving device and a plurality of hanging rods arranged on the inner wall of the ring gear.

[0010] This setting uses ring gear to drive the consumables hanging on the hanging rod to rotate, forming dynamic sterilization.

[0011] The exhaust group 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 rotatably connected to the square frame, shaft teeth clamped at the end shaft of the flap, and frame teeth arranged outside the square frame.

[0012] In this setting, when the vent tube moves downward, its tube hole and the side opening form a passage. At the same time, the frame teeth and the shaft teeth engage to drive the flap to rotate, so that the steam in the tank is transported through the vent tube and then sprayed laterally through the tube hole to the surface of the medical consumables, achieving full coverage sterilization.

[0013] The driving device includes a motor and a transmission group for driving the ring gear to rotate using the power of the motor.

[0014] In the technical solution of the present invention, a number of regularly distributed air holes with inverted funnel-shaped cross-sections 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 outside of the number of air holes on the top surface of the tank body, a reinforcing ring is integrally formed on the outside of the top mouth of the sleeve, a cylinder opening is provided inside the sleeve at positions corresponding to the number of side openings, a number of external grooves connected to the cylinder openings are provided on the outer wall of the sleeve, an inner ring groove connected to the top of the number of cylinder openings is provided on the inner wall of the sleeve, and the positions of the number of cylinder openings correspond one-to-one to the positions of the number of connecting holes.

[0015] This setting allows medical consumables to fully contact the steam, and an air hole with an inverted funnel-shaped cross-section is opened on the top surface of the tank body and several side openings are opened on the sleeve, thereby increasing the contact area between the steam and the medical consumables.

[0016] In the technical solution of the present invention, the sterilization tank also includes a cover plate fixedly connected to the top surface of the sleeve by bolts, and 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 on the bottom end of the connecting pipe on the outside of the condenser.

[0017] With this setting, the operator can observe the pressure gauge on the top of the cover and control the opening and closing of the pressure relief valve to ensure that the internal pressure of the tank is always kept within a stable range, thereby ensuring the safety of the sterilization process.

[0018] In the technical solution of the present invention, the rotating frame also includes a rotating shaft rotatably connected to the top surface of the tank body, 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 groove running through it from top to bottom in the interval area between several hanging rods.

[0019] This setting uses ring gear to drive the consumables hanging on the hanging rod to rotate, forming dynamic sterilization.

[0020] In the technical solution of the present invention, the exhaust group also includes an outer convex plate that is clamped and fixed on the outer wall of the ventilation pipe and slidably connected to the inside of the outer groove, and a spring welded and fixed on the bottom surface of the outer convex plate, and the other end of the spring is welded and fixed on the bottom surface of the groove wall of the outer groove.

[0021] In the technical solution of the present invention, the top hemisphere of the vent pipe extends to above the opening of the cylinder, and the bottom end of the vent pipe extends to below the connecting hole. The square frame is clamped and fixed to the vent pipe, and the flap is rotatably connected to the inner wall of the square frame. The shaft teeth are engaged with the frame teeth, and the frame teeth are clamped and fixed to the inner top surface of the tank body.

[0022] The above setting is to ensure that the side-blowing steam flow maintains an optimal working distance with the surface of the instrument. Through the setting of the arc groove, the steam spray is activated only when the consumables move with the rotating frame to the corresponding area of ​​the side opening.

[0023] In the technical solution of the present invention, the driving device also includes a box body arranged under the motor, an external frame fixedly connected to the outside of the motor by bolts, a reciprocating screw arranged on the output shaft of the motor, a piston plate sleeved on the outside of the reciprocating screw, and a return liquid pipe and a liquid extraction pipe respectively clamped and fixed to the left and right ends of the box body.

[0024] In the technical solution of the present invention, a cavity is opened inside the box for the piston plate to move, and the external frame is fixedly connected to the tube wall of the condenser by bolts. The reciprocating screw is coaxially connected to the motor output shaft and the bottom end is rotatably connected to the bottom surface of the cavity inside the box.

[0025] In the technical solution of the present invention, the parts where the liquid extraction pipe and the liquid return pipe are connected to the box body are respectively provided with a liquid inlet valve and a liquid outlet valve, the end of the liquid extraction pipe is connected to the bottom 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 body.

[0026] The above arrangement forms a vertical pumping mechanism through the movement of the piston plate in the cavity, in conjunction with the liquid extraction pipe and the liquid return pipe, thereby forming a water circulation system to ensure the generation of steam in the tank body.

[0027] In the technical solution of the present invention, the transmission group includes two pulleys arranged in parallel, a synchronous belt sleeved between the two pulleys, a rotating shaft rotatably connected to the top surface of the tank body, and a driving tooth fixedly connected to the top of the rotating shaft by a bayonet and meshing with the ring teeth, one of the pulleys is clamped and fixed to the outer wall of the reciprocating screw, and the other pulley is clamped and fixed to the outer wall of the rotating shaft.

[0028] This setting transmits the power of the motor to the ring gear through the transmission group composed of pulleys and synchronous belts, allowing it to rotate.

[0029] Compared with the prior art, the present invention has the following beneficial effects: 1. This circulating steam sterilizer for cleaning medical consumables uses a timed linkage control of the rotating frame and the exhaust group to form a composite vertical and lateral steam injection mechanism during the sterilization process. When the rotating frame drives the consumables to rotate to a predetermined angle, it triggers the ventilation tube to move downward and drives the flap to rotate, allowing steam to pass through the tube holes and be injected laterally when the consumables reach the optimal working position. At the same time, the inverted funnel-shaped air holes generate vertical steam flow. The two work together to form a three-dimensional penetrating sterilization network, increasing the contact area between the consumables and steam and achieving full coverage sterilization.

[0030] 2. This circulating steam sterilization device for cleaning medical consumables has a motor-driven rotating frame that simultaneously drives the piston plate to move up and down within the cavity of the box through a reciprocating screw, forming a vertical pumping mechanism. After recovering the clean condensed water from the condenser, it automatically replenishes water to the tank, thus establishing a circulating system for automatic recovery and reevaporation of condensed water. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional view of the structure of the sterilization tank in the present invention; Figure 3 It is a schematic cross-sectional view of the structure of the tank body in the present invention; Figure 4 It is a schematic cross-sectional view of the structure of the sleeve in the present invention; Figure 5 For the present invention Figure 4 A magnified schematic diagram of part A; Figure 6 It is a structural schematic diagram of the rotating frame in the present invention; Figure 7 It is a schematic cross-sectional view of the structure of the exhaust group in the present invention; Figure 8 For the present invention Figure 7 An enlarged schematic diagram of part B; Figure 9Schematic diagram of the structure of the vacuum pump in the present invention; Figure 10 Schematic diagram of the structure of the condenser in the present invention; Figure 11 It is a schematic cross-sectional view of the structure of the driving device of the present invention; Figure 12 It is a structural schematic diagram of the transmission group in the present invention; Description of reference numerals: 100, sterilization tank; 110, tank body; 111, air hole; 112, connecting hole; 120, sleeve; 121, reinforcement ring; 122, cylinder opening; 123, side opening; 124, outer slot; 125, inner ring groove; 130, cover plate; 140, rotating frame; 141, rotating shaft; 142, ring gear; 1420, arc groove; 143, hanging rod; 150, exhaust group; 151, vent pipe; 1510, pipe hole; 152, square frame; 153, flap; 154, shaft gear; 155, frame gear; 156, outer convex plate; 157, spring; 200. Vacuum pump; 300, condenser; 400, driving device; 410, housing; 420, motor; 430, external frame; 440, reciprocating screw; 450, piston plate; 460, transmission group; 461, pulley; 462, synchronous belt; 463, rotating shaft; 464, driving gear; 470, liquid extraction pipe; 480, liquid return pipe. DETAILED DESCRIPTION

[0032] The following will provide a clear and complete description of the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] See also Figures 1-12 As shown, this embodiment provides a technical solution: A circulating steam sterilization device for cleaning medical consumables, comprising 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 driving device 400 disposed between the sterilization tank 100 and the condenser 300; See also Figure 2-Figure 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 arranged inside the sleeve 120, and a plurality of exhaust groups 150 regularly distributed on the outer wall of the sleeve 120, and a plurality of side openings 123 are opened on the inner wall of the sleeve 120.

[0034] Specifically, a number of regularly distributed air holes 111 with an inverted funnel-shaped cross-section are provided on the circular plate on the top surface of the tank body 110, and a number of regularly distributed connecting holes 112 are provided on the outside of the air holes 111 on the top surface of the tank body 110. A reinforcing ring 121 is integrally formed on the outside of the top tube mouth of the sleeve 120, and a cylinder opening 122 is provided inside the sleeve 120 at positions corresponding to the side openings 123. The outer wall of the sleeve 120 is provided with a number of outer grooves 124 connected to the cylinder openings 122, and the inner wall of the sleeve 120 is provided with an inner ring groove 125 connected to the top of the cylinder openings 122. The positions of the cylinder openings 122 correspond one-to-one to the positions of the connecting holes 112.

[0035] Furthermore, the tank body 110 is used to provide a storage area for clean water and can generate steam after the external heating device is turned on. The air hole 111 is used to allow steam to pass through, and the connecting hole 112 is used to provide a placement area for the structure in the exhaust group 150. The reinforcement ring 121 of the sleeve 120 is used to provide a placement platform for the cover 130. The cylinder opening 122 and the outer groove 124 both provide a moving area for the exhaust group 150. The side opening 123 is used to allow steam to blow from the side to the surface of the consumables. The inner ring groove 125 is used to provide a rotation area for the internal structure of the rotating frame 140. This setting allows the medical consumables to fully contact with the steam, and an air hole 111 with an inverted funnel-shaped cross-section is opened on the top surface of the tank body 110 and a number of side openings 123 are opened on the sleeve 120, thereby increasing the contact area between the steam and the medical consumables.

[0036] See also Figure 1-Figure 2 As shown, in this embodiment, the sterilization tank 100 also includes a cover plate 130 fixedly connected to the top surface of the sleeve 120 by bolts, and 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.

[0037] Furthermore, the cover 130 is used to ensure the sealing 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 130 and control the opening and closing of the pressure relief valve to ensure that the internal pressure of the tank body 110 is always maintained within a stable range, thereby ensuring the safety of the sterilization process.

[0038] See also Figure 6 As shown, in this embodiment, the rotating frame 140 includes a ring gear 142 driven by the driving device 400 and a plurality of hanging rods 143 disposed on the inner wall of the ring gear 142 .

[0039] Specifically, the rotating frame 140 also includes a rotating shaft 141 rotatably connected to the top surface of the tank body 110, and the two ends of the hanging rod 143 are respectively welded and fixed to the rotating shaft 141 and the inner wall of the ring gear 142. The top surface of the ring gear 142 is provided with an arc groove 1420 running through it from top to bottom in the interval area between several hanging rods 143.

[0040] Furthermore, a plurality of circular holes are provided on the hanging rod 143 so that medical consumables can be hung above the tank body 110 . The ring gear 142 of this arrangement drives the consumables hung on the hanging rod 143 to rotate, thereby achieving dynamic sterilization.

[0041] See also Figure 7-Figure 8 As shown, in this embodiment, the exhaust group 150 includes a ventilation pipe 151 with a hemispherical top and capable of moving up and down, a square frame 152 that moves with the ventilation pipe 151, a flap 153 rotatably connected to the square frame 152, an axis tooth 154 clamped at the end axis of the flap 153, and a frame tooth 155 arranged on the outside of the square frame 152.

[0042] Specifically, the exhaust group 150 also includes an outer convex plate 156 that is snap-fitted to the outer wall of the ventilation pipe 151 and slidably connected to the inside of the outer slot 124, and a spring 157 welded to the bottom surface of the outer convex plate 156, and the other end of the spring 157 is welded to the bottom surface of the slot wall of the outer slot 124.

[0043] Furthermore, the top hemisphere of the vent pipe 151 extends to above the cylinder opening 122, and the bottom end of the vent pipe 151 extends to below the connecting hole 112. The square frame 152 is clamped and fixed to the vent pipe 151, and the flap 153 is rotatably connected to the inner wall of the square frame 152. The shaft teeth 154 are engaged with the frame teeth 155, and the frame teeth 155 are clamped and fixed to the inner top surface of the tank body 110.

[0044] Furthermore, during the rotation of the ring gear 142, its bottom surface collides with the hemispherical body at the top of the vent tube 151, forcing the vent tube 151 downward to the inside of the cylinder opening 122, and the outer convex plate 156 compresses the spring 157, causing it to contract after being stressed, thereby generating an upward reaction force. Furthermore, when the vent tube 151 moves downward, its tube hole 1510 forms a passage with the side opening 123, and at the same time, the frame teeth 155 and the shaft teeth 154 engage to drive the flap 153 to rotate, so that the steam in the tank body 110 is transported through the vent tube 151 and then sprayed laterally to the surface of the medical consumables through the tube hole 1510, thereby achieving full coverage sterilization. When the arc groove 1420 of the ring tooth 142 moves to above the cylinder opening 122, the elastic force of the spring 157 is released through The outer convex plate 156 pushes the vent tube 151 upward, allowing the top end of the vent tube 151 to re-extend above the cylinder opening 122 and be located inside the arc-shaped groove 1420, while the side opening 123 and the tube hole 1510 are staggered. This setting ensures that the side-blowing steam flow maintains an optimal working distance with the surface of the instrument. Through the setting of the arc-shaped groove 1420, the steam injection is activated only when the consumables move with the rotating frame 140 to the corresponding area of ​​the side opening 123.

[0045] See also Figure 11 As shown, in this embodiment, the driving device 400 includes a motor 420 and a transmission group 460 for driving the ring gear 142 to rotate with the power of the motor 420.

[0046] Specifically, the driving device 400 also includes a box body 410 arranged below the motor 420, an external frame 430 fixedly connected to the outside of the motor 420 by bolts, a reciprocating screw 440 arranged on the output shaft of the motor 420, a piston plate 450 sleeved on the outside of the reciprocating screw 440, and a return liquid pipe 480 and a liquid extraction pipe 470 respectively clamped and fixed to the left and right ends of the box body 410.

[0047] Furthermore, a cavity is opened inside the box body 410 for the piston plate 450 to move, and the external frame 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 the bottom end is rotatably connected to the bottom surface of the cavity inside the box body 410.

[0048] Furthermore, the parts where the liquid extraction pipe 470 and the liquid return pipe 480 are connected to the box body 410 are respectively provided with a liquid inlet valve and a liquid outlet valve. The end of the liquid extraction pipe 470 is connected to the bottom of the area where the condensate is stored in the condenser 300, and the end of the liquid return pipe 480 is connected to a position near the top of the tank body 110.

[0049] Furthermore, the rotation of the reciprocating screw 440 will drive the piston plate 450 to move back and forth up and down in the cavity of the box body 410. During the upward stroke, the piston plate 450 draws the clean water pre-stored at the bottom of the condenser 300 into the cavity of the box body 410 through the liquid extraction pipe 470, and during the downward stroke, presses the water into the tank body 110 through the liquid return pipe 480. When the piston plate 450 moves to the lowest position, the height of its bottom surface is higher than the height of the pipe mouths of the liquid extraction pipe 470 and the liquid return pipe 480. This setting forms a vertical pumping mechanism 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, and will form a water circulation system to ensure the generation of steam in the tank body 110.

[0050] See also Figure 12 As shown, in this embodiment, the transmission group 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 driving tooth 464 fixedly connected to the top of the rotating shaft 463 by a bayonet and meshing with the ring tooth 142, wherein one pulley 461 is clamped and fixed to the outer wall of the reciprocating screw 440, and the other pulley 461 is clamped and fixed to the outer wall of the rotating shaft 463.

[0051] Furthermore, the motor 420 drives the reciprocating screw 440 to rotate, and after transmitting the power through the pulley 461 and the synchronous belt 462, it drives the driving teeth 464 at the end of the rotating shaft 463 to engage with the ring gear 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 gear 142 through the transmission group 460 composed of the pulley 461 and the synchronous belt 462, allowing it to rotate.

[0052] Finally, it should be noted that the vacuum pump 200, condenser 300 and motor 420 involved in the present invention are all universal standard parts or components known to technical personnel in this field. Their structures and principles are known to technical personnel through technical manuals or through conventional experimental methods. In the idle space of this device, the vacuum pump 200, condenser 300 and motor 420 are connected to the external power supply through wires. The specific connection method should refer to the working principle of the present invention. The electrical connection between each electrical component is completed in a sequential working order, and the detailed connection methods are all well-known technologies in this field.

[0053] When using the circulating steam sterilizer for cleaning medical consumables of the present invention, the medical consumables are hung 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; Next, water is poured into the tank body 110 and the vacuum pump 200 is started to create a negative pressure environment. The water temperature is raised to boiling point by an external heating system, and steam passes through the air holes 111 of the tank body 110 to form a vertical airflow, sterilizing the consumables on the rotating rack 140. Subsequently, when the driving device 400 is started, 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 driving teeth 464 at the end of the rotating shaft 463 are engaged with the ring gear 142, so that the hanging rod 143 can rotate at a constant speed; At this time, when the ring gear 142 rotates, when the arc-shaped groove 1420 is offset from the cylinder opening 122, its bottom surface collides with the hemispherical body at the top of the vent tube 151, and the vent tube 151 is pressed downward to the inside of the cylinder opening 122. The outer convex plate 156 compresses the spring 157, causing it to contract after being stressed, thereby generating an upward reaction force. After the vent tube 151 moves downward, its tube hole 1510 and the side opening 123 form a passage at this time. At the same time, the frame teeth 155 and the shaft teeth 154 engage to drive the flap 153 to rotate, so that the steam in the tank body 110 is transported through the vent tube 151 and then sprayed laterally through the tube hole 1510 to the surface of the medical consumables, achieving full coverage sterilization; At the same time, the rotation of the reciprocating screw 440 drives the piston plate 450 to move up and down in the cavity of the box body 410 to form a vertical pumping mechanism. During the upward stroke, the piston plate 450 draws the clean water pre-stored at the bottom of the condenser 300 into the cavity of the box body 410 through the liquid extraction pipe 470. During the downward stroke, the water is pressed into the tank body 110 through the liquid return pipe 480, forming a water circulation system to ensure steam generation. After sterilization is completed, the heat source is cut off, and after the temperature and pressure in the tank body 110 return to normal, the cover 130 is opened and closed to take out the medical consumables and transfer them to the drying process to treat the condensed water on the surface.

[0054] The foregoing descriptions of specific exemplary embodiments of the present invention are for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many variations and modifications are possible in light of the foregoing teachings. The exemplary embodiments have been selected and described for the purpose of explaining the specific principles of the invention and their practical application, thereby enabling those skilled in the art to make and utilize a variety of exemplary embodiments of the invention and various options and modifications. The scope of the invention is intended to be defined by the description 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 driving device is also provided between the sterilizing tank and the condenser; The sterilization tank includes a tank body for generating steam, a sleeve, a rotating frame arranged inside the sleeve, and a plurality of exhaust groups regularly distributed on the outer wall of the sleeve, and a plurality of side openings are opened on the inner wall of the sleeve; The rotating frame includes a ring gear driven by a driving device and a plurality of hanging rods arranged on the inner wall of the ring gear. The ring gear drives the consumables hung on the hanging rods to rotate, thereby forming dynamic sterilization; The exhaust group 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 rotatably connected to the square frame, a shaft gear clamped at the end shaft of the flap, and a frame gear arranged on the outside of the square frame. When the vent pipe moves downward, its tube hole and the side opening form a passage, and at the same time, the frame gear and the shaft gear engage 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 tube hole, thereby achieving full coverage sterilization; The driving device includes a motor and a transmission group for driving the ring gear to rotate using the power of the motor.

2. The circulating steam sterilizer for cleaning medical consumables according to claim 1, characterized in that: A number of regularly distributed air holes with inverted funnel-shaped cross-sections are provided on the circular plate on the top surface of the tank body, and a number of regularly distributed connecting holes are provided on the outside of the several air holes on the top surface of the tank body. A reinforcing ring is integrally formed on the outside of the top mouth of the sleeve, and cylinder openings are provided inside the sleeve at positions corresponding to the several side openings. A number of external grooves connected to the cylinder openings are provided on the outer wall of the sleeve, and an inner ring groove connected to the tops of the several cylinder openings is provided on the inner wall of the sleeve. The positions of the several cylinder openings correspond one to one to the positions of the several connecting holes.

3. The circulating steam sterilizer for cleaning medical consumables according to claim 1, characterized in that: The sterilization tank also includes a cover plate fixedly connected to the top surface of the sleeve by bolts, and 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 on the bottom end of the connecting pipe outside the condenser.

4. The circulating steam sterilizer 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 body. The two ends of the hanging rod are respectively welded to the rotating shaft and the inner wall of the ring gear. The top surface of the ring gear is provided with an arc groove running through it in the interval area between the hanging rods.

5. The circulating steam sterilizer for cleaning medical consumables according to claim 2, characterized in that: The exhaust group also includes an outer convex plate fixed on the outer wall of the ventilation pipe and slidably connected to the inside of the outer slot, and a spring welded to the bottom surface of the outer convex plate, and the other end of the spring is welded to the bottom surface of the slot wall of the outer slot.

6. The circulating steam sterilizer for cleaning medical consumables according to claim 2, characterized in that: The top hemisphere of the vent pipe extends to above the opening of the cylinder, and the bottom end of the vent pipe extends to below the communicating hole. The square frame is fixedly connected to the vent pipe, and the flap is rotatably connected to the inner wall of the square frame. The shaft teeth are engaged with the frame teeth, and the frame teeth are fixedly connected to the inner top surface of the tank body.

7. The circulating steam sterilizer for cleaning medical consumables according to claim 1, characterized in that: The driving device also includes a box body arranged below the motor, an external frame fixedly connected to the outside of the motor by bolts, a reciprocating screw arranged on the output shaft of the motor, a piston plate sleeved on the outside of the reciprocating screw, and a return pipe and a liquid extraction pipe respectively clamped and fixed to the left and right ends of the box body.

8. The circulating steam sterilizer for cleaning medical consumables according to claim 7, characterized in that: The interior of the box is provided with a cavity for the piston plate to move, and the external frame is fixedly connected to the tube wall of the condenser by bolts. The reciprocating screw is coaxially connected to the motor output shaft and the bottom end is rotatably connected to the bottom surface of the cavity inside the box.

9. The circulating steam sterilizer for cleaning medical consumables according to claim 8, characterized in that: The parts where the liquid extraction pipe and the liquid return pipe are connected to the box body are respectively provided with a liquid inlet valve and a liquid outlet valve. The end of the liquid extraction pipe is connected to the bottom of the area where the condensate is stored in the condenser, and the end of the liquid return pipe is connected to a position near the top of the tank body.

10. The circulating steam sterilizer for cleaning medical consumables according to claim 1, characterized in that: The transmission group includes two pulleys arranged in parallel, a synchronous belt sleeved between the two pulleys, a rotating shaft rotatably connected to the top surface of the tank body, and a driving tooth fixedly connected to the top of the rotating shaft by a bayonet and meshing with the ring teeth, one of the pulleys is clamped and fixed to the outer wall of the reciprocating screw, and the other pulley is clamped and fixed to the outer wall of the rotating shaft.

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