Pressure steam sterilizer for injection production

Abstract

The invention relates to the technical field of injection production, in particular to a pressure steam sterilizer for injection production. Comprising a sterilization shell, the sterilization shell is provided with an opening and closing door, the sterilization shell is slidably connected with a fixing plate, the fixing plate is rotatably connected with first fixing shells which are uniformly distributed, second fixing shells are fixedly connected in the first fixing shells, and a first sliding plate is slidably connected in the sterilization shell; the first sliding plate is fixedly connected with evenly-distributed rotating discs, the rotating discs are detachably and rotationally connected with rotating blocks, limiting pieces are arranged below the rotating blocks, the limiting pieces are fixedly connected with symmetrically-distributed elastic telescopic rods, and the telescopic ends of the symmetrically-distributed elastic telescopic rods are jointly connected with a sealing plate in a sealed and sliding mode. When the device is used for carrying out steam sterilization on an injection in an ampoule bottle, once the ampoule bottle is broken, liquid medicine and fragments of the broken ampoule bottle are concentrated in the second fixed shell, so that pollution of the liquid medicine to the sterilizer is effectively prevented.

Description

Technical Field

[0001] The invention relates to the technical field of injection production, in particular to a pressure steam sterilizer for injection production. Background Art

[0002] In the production process of injections, the injection needs to be loaded into an ampoule, and then the bottleneck of the ampoule is melted and sealed by heating (that is, the bottle cap and the bottle body are adhered together), and finally the ampoule with the injection is placed in a pressure steam sterilizer for sterilization. However, during the heating and sterilization of the ampoule, if the bottleneck of the ampoule is completely solidified from the molten state, it may cause a weak point in the bottleneck. In this case, when the ampoule is heated, the injection in the bottle will evaporate, causing the pressure in the bottle to increase. If the pressure in the ampoule exceeds the limit that the weak point of the bottleneck can withstand, the ampoule will rupture. In addition, during the heating of the ampoule, the bottle body will generate thermal stress, which also increases the probability of the ampoule rupture.

[0003] In the existing sterilizer, the ampoule is simply fixed by a bracket. Once the ampoule is broken, the existing device cannot collect the broken ampoule and the medicine solution, so that the broken glass fragments and the medicine solution enter the sterilizer and evaporate under the high-temperature steam, contaminating other ampoules or equipment parts in the sterilizer, causing cross contamination, and requiring the entire batch of medicines and sterilizers to be processed. Summary of the invention

[0004] In order to overcome the disadvantage that the drug liquid will contaminate the sterilizer and other ampoules when the ampoule is broken, the present invention provides a pressure steam sterilizer for injection production.

[0005] The technical implementation scheme of the present invention is: a pressure steam sterilizer for injection production, comprising a sterilization shell, the sterilization shell is provided with a switch door, the sterilization shell is slidably connected to a fixed plate, the fixed plate is rotatably connected to a uniformly distributed first fixed shell, a second fixed shell is fixedly connected in the first fixed shell, a first sliding plate is slidably connected in the sterilization shell, a moving component for driving the first sliding plate to slide is provided in the sterilization shell, the first sliding plate is fixedly connected to a uniformly distributed rotating disk, the rotating disk is detachable and rotatably connected to a rotating block, a limiting member is provided below the rotating block, the limiting member is fixedly connected to symmetrically distributed elastic telescopic rods, the telescopic ends of the symmetrically distributed elastic telescopic rods are all fixedly connected to the adjacent rotating blocks, the telescopic ends of the symmetrically distributed elastic telescopic rods are commonly sealed and slidably connected to a sealing plate, the sealing plate is in contact and cooperates with the limiting member, and the fixed plate is provided with a supporting component for supporting the second fixed shell.

[0006] Furthermore, the limiting member is composed of two semicircular rings and a square plate, a hole is opened in the middle of the square plate, the hole is narrow at the top and wide at the bottom, and the limiting member is provided with circumferentially distributed support blocks, and the support blocks are used to fix the ampoule bottle.

[0007] Furthermore, the moving component includes symmetrically distributed elastic telescopic plates, the symmetrically distributed elastic telescopic plates are all fixed to the sterilization shell, the opposite sides of the telescopic ends of the symmetrically distributed elastic telescopic plates are fixed with symmetrically distributed inclined blocks, the elastic telescopic plates are connected to a symmetrically distributed second sliding plate through a symmetrically distributed inclined block limited sliding connection, the second sliding plate is fixed to the equidistantly distributed first sliding plate, and the telescopic end of the elastic telescopic plate is squeezed and matched with the switch door on the sterilization shell.

[0008] Furthermore, the first fixed shell is fixedly connected to a limiting ring, the elastic telescopic rod is fixedly connected to an elastic hook, and the elastic hook is limitedly matched with the limiting ring.

[0009] Furthermore, the supporting assembly includes a speaker component, a third fixed shell is fixedly connected to the upper side of the speaker component, the third fixed shell is rotatably connected to the adjacent second fixed shell, a fixed rod is fixedly connected to the upper side of the third fixed shell, the fixed rod is rotatably connected to a rotating ring, and a bottom cover assembly for sealing the speaker component is arranged in the third fixed shell.

[0010] Furthermore, the rotating ring is provided with circumferentially distributed grooves for guiding the gas.

[0011] Furthermore, the bottom cover assembly includes a transmission member, which is slidably connected to the third fixed shell, the speaker member is fixedly connected to a sealing member, a spring is arranged between the transmission member and the sealing member, the transmission member is fixedly connected to a sealing ring, the sealing ring is sealingly matched with the sealing member, the transmission member is sealingly extruded and matched with the adjacent elastic telescopic rod and the adjacent limit member, and the upper side of the transmission member is sealingly matched with the fixed plate.

[0012] Furthermore, it also includes a rotating mechanism, which is used to drive the second fixed shell to rotate, and the rotating mechanism is arranged in the second fixed shell. The rotating mechanism includes a guide member, and the guide member is fixed in the second fixed shell. The guide member is threaded, and the second fixed shell is fixed with two groups of circumferentially distributed limit blocks, and the two groups of limit blocks are respectively located on the upper and lower sides of the second fixed shell, and are used to center the ampoule bottle and drive it to rotate. The upper side of the second fixed shell is provided with an inwardly inclined inclined surface, and the position of the inclined surface corresponds to the bottleneck of the ampoule bottle.

[0013] Furthermore, the second fixed shell is provided with a square hole, the first fixed shell is provided with a drainage hole, the transmission member is fixedly connected with a sealing block, and the sealing block is sealed and matched with the drainage hole.

[0014] Furthermore, a conduit is fixedly connected in the sterilization shell, two ends of the conduit are respectively located at the upper and lower sides of the sterilization shell, and an air guide module is arranged in the conduit for guiding air flow.

[0015] Compared with the prior art, the present invention has the following advantages: when the present invention uses the device to steam sterilize the injection in the ampoule bottle, once the ampoule bottle is broken, the upper side of the second fixed shell is blocked by the limiter and the sealing plate, and the lower side of the second fixed shell is blocked at the same time, so that the broken liquid medicine and fragments of the ampoule bottle are concentrated in the second fixed shell, effectively preventing the liquid medicine from contaminating the sterilizer.

[0016] During the heating process, the present invention drives the ampoule bottle to rotate through the force of steam flow, so that the injection in the ampoule bottle gradually approaches the edge of the ampoule bottle under the action of centrifugal force, thereby increasing the contact area with the ampoule bottle, reducing the upper and lower temperature differences of the ampoule bottle, reducing the thermal stress in the ampoule bottle, and thus reducing the probability of the ampoule bottle breaking.

[0017] The present invention avoids condensation of water droplets on the outer surface of the ampoule bottle by rotating, thereby preventing uneven heating caused by condensation of water droplets in the ampoule bottle and reducing the probability of the ampoule bottle breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the sterilization shell and the fixing plate of the present invention; Figure 3 Schematic diagram of the three-dimensional structure inside the sterilization shell of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the fixing plate and the first fixing shell of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the first fixed shell, the rotating disk and the limiting member of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the first fixed shell, the second fixed shell and the speaker and other parts of the present invention; Figure 7 It is a three-dimensional structural cross-sectional view of the second fixed shell and the speaker member of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the limiter and the support block of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the rotating disk, the rotating block and the sealing plate of the present invention; Fig.10It is a three-dimensional structural schematic diagram of the back cover assembly of the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the elastic telescopic plate and the second sliding plate of the present invention; Fig.12 It is a schematic diagram of the three-dimensional structure of the mobile assembly of the present invention.

[0019] Parts names and serial numbers in the figure: 1-sterilization shell, 2-fixed plate, 21-first fixed shell, 22-second fixed shell, 23-first sliding plate, 24-rotating disk, 25-rotating block, 26-elastic telescopic rod, 27-limiting member, 271-support block, 28-sealing plate, 3-elastic telescopic plate, 31-second sliding plate, 32-limiting ring, 33-elastic hook, 4-horn member, 41-third fixed shell, 42-fixed rod, 43-rotating ring, 5-transmission member, 51-seal, 52-seal ring, 6-guide, 61-limiting block, 7-square hole, 71-drainage hole, 72-sealing block, 73-catheter. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with specific embodiments. It should also be noted that, unless otherwise clearly specified and limited, terms such as: setting and installation should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In the production process of some injections, the injection needs to be loaded into an ampoule bottle first, and then the bottleneck of the ampoule bottle is melted and sealed by heating, that is, the bottle cap and the bottle body are bonded together, and then the ampoule bottle with the injection is placed in a pressure steam sterilizer for sterilization. However, in the process of heating and sterilizing the ampoule bottle, if the bottleneck of the ampoule bottle is not sealed well, it may cause a weak point in the bottleneck. In this case, when the ampoule bottle is heated, the injection in the bottle will evaporate, causing the pressure in the bottle to increase. If the pressure in the ampoule bottle exceeds the limit that the weak part of the bottleneck can bear, it will cause the ampoule bottle to break. In addition, in the process of heating the ampoule bottle, the bottle body will produce thermal stress, which also increases the probability of the ampoule bottle breaking. Once the ampoule bottle breaks, the broken glass fragments and liquid medicine will enter the interior of the sterilizer, contaminating other ampoules or equipment parts in the sterilizer, causing cross contamination. For this reason, the present invention is improved by the following steps: Example 1: A pressure steam sterilizer for injection production, referring to Figure 1-Figure 7As shown, it includes a sterilization shell 1, a water inlet pipe and a water outlet pipe are installed on the lower side of the sterilization shell 1, a heating element is arranged at the bottom of the sterilization shell 1, an exhaust valve is installed on the top of the sterilization shell 1, and a switch door is arranged on the sterilization shell 1. Two equally distributed fixed plates 2 are slidably connected in the sterilization shell 1, and the fixed plates 2 are rotatably connected with evenly distributed first fixed shells 21. The first fixed shells 21 are distributed in a rectangular array on the fixed plates 2. The first fixed shells 21 are made of heat-insulating material. A second fixed shell 22 is fixedly connected in the first fixed shell 21. The second fixed shell 22 is used to store ampoules. Two equally distributed first sliding plates 23 are slidably connected up and down in the sterilization shell 1. A moving component for driving the two first sliding plates 23 to slide is arranged in the sterilization shell 1. The first sliding plate 23 is fixedly connected with evenly distributed rotating disks 24. The rotating disks 24 and the adjacent first fixed shells 21 are located on the same vertical line. The rotating disks 24 are detachable and rotatably connected with rotating blocks 25. The rotating disks 24 and the adjacent rotating blocks 25 are connected by magnetic attraction or buttons. The rotating disk 24 and the adjacent rotating block 25 are connected by buckles, so that the rotating disk 24 and the adjacent rotating block 25 can be separated by force. A limit piece 27 is arranged below the rotating block 25. The limit piece 27 is fixedly connected with two symmetrically distributed elastic telescopic rods 26. The telescopic ends of the symmetrically distributed elastic telescopic rods 26 are fixedly connected with the adjacent rotating block 25. The limit piece 27 is composed of two semicircular rings and a square plate. A hole is opened in the middle of the square plate. The hole is narrow at the top and wide at the bottom. The limit piece 27 is provided with circumferentially distributed support blocks 271. The support blocks 271 are used to fix The ampoule bottle, the support block 271 is arc-shaped, and there is a gap between the support block 271 and the limiter 27, which is used to pass water vapor to quickly heat up the support block 271, and the part of the ampoule bottle in contact with the support block 271 can also be heated evenly. The limiter 27 is a heat-insulating material, and the telescopic ends of the two symmetrically distributed elastic telescopic rods 26 are jointly sealed and slidably connected with a sealing plate 28. The sealing plate 28 is in contact with the limiter 27, and the fixed plate 2 is provided with a support component for supporting the second fixed shell 22.

[0022] Reference Figure 3 , Fig.11 and Fig.12As shown, the moving assembly includes two elastic telescopic plates 3 symmetrically distributed on the left and right, the two elastic telescopic plates 3 are both fixed to the sterilization shell 1, the opposite sides of the telescopic ends of the symmetrically distributed elastic telescopic plates 3 are fixed with two symmetrically distributed inclined blocks, the elastic telescopic plates 3 are limitedly slidably connected with two symmetrically distributed second sliding plates 31 through the two symmetrically distributed inclined blocks, the second sliding plates 31 are fixed with the equidistantly distributed first sliding plates 23, and are used to drive the first sliding plates 23 to move, the telescopic ends of the elastic telescopic plates 3 are squeezed and matched with the switch door on the sterilization shell 1, when the switch door is closed, the switch door squeezes the elastic telescopic plate 3 to make the first sliding plate 23 descend through transmission, when the switch door is opened, the elastic telescopic plate 3 is released and the first sliding plate 23 is reset through transmission, so that the staff can take the ampoule bottle conveniently, the upper side of the first fixed shell 21 is fixed with a limiting ring 32, the lower side of the elastic telescopic rod 26 is fixed with an elastic hook 33, and the elastic hook 33 is limitedly matched with the limiting ring 32.

[0023] Reference Figure 5-Figure 7 As shown, the support assembly includes a horn member 4, and the fixed plate 2 is formed by connecting two upper and lower plates and a middle round rod. The horn member 4 is fixed to the plate on the lower side of the fixed plate 2, and a fourth fixed shell 41 is fixed to the upper side of the horn member 4. The third fixed shell 41 is rotatably connected to the adjacent second fixed shell 22. A fixed rod 42 is fixed to the upper side of the third fixed shell 41, and the fixed rod 42 is rotatably connected to a rotating ring 43. The rotating ring 43 is provided with circumferentially distributed grooves for guiding water vapor. When water vapor passes through the rotating ring 43, the water vapor flows through the grooves on the rotating ring 43, reducing the contact area between the bottom of the ampoule bottle and the rotating ring 43, so that the water vapor can contact the bottom of the ampoule bottle, reducing the uneven heating of the ampoule bottle, and a bottom sealing assembly for sealing the horn member 4 is provided in the third fixed shell 41.

[0024] Reference Figure 6 and Figure 7As shown, the bottom cover assembly includes a transmission member 5, which is slidably connected to the third fixed shell 41. The upper side of the transmission member 5 is a circular ring, which makes it more stable when the adjacent limiting members 27 squeeze the adjacent transmission members 5. The speaker member 4 is fixedly connected to a sealing member 51, and a spring is arranged between the transmission member 5 and the sealing member 51. A sealing ring 52 is fixedly connected to the middle part of the lower side of the transmission member 5. The sealing ring 52 and the sealing member 51 are sealed together. The spring between the transmission member 5 and the sealing member 51 is used to keep the sealing ring 52 and the sealing member 51 in a connected state. A hole is opened on the side wall of the sealing member 51, and water vapor flows inward through the hole on the side wall of the sealing member 51. The sealing ring 52 blocks the hole on the sealing member 51 through the outer surface, so that the sealing ring 52 is not driven to move when the steam flows, and the flow direction of the water vapor is perpendicular to the sealing ring 52, so that the steam does not hinder the sealing ring 52 from blocking the sealing member 51. The transmission member 5 is sealed and squeezed with the adjacent elastic telescopic rod 26 and the adjacent limiter 27, and the circular ring on the upper side of the transmission member 5 is sealed with the fixed plate 2. When the ampoule bottle breaks, the circular ring on the upper side of the transmission member 5 is in sealing contact with the fixed plate 2, and the elastic telescopic rod 26 and the limiter 27 are in sealing contact with the transmission member 5 to prevent the liquid medicine in the ampoule bottle from leaking.

[0025] When using the device to steam sterilize the injection in the ampoule, first open the switch door to pull out the fixed plate 2, then place the ampoule in the second fixed shell 22, so that the bottom of the ampoule contacts the adjacent rotating ring 43. After the ampoule is placed, the fixed plate 2 is reset, and then the staff closes the switch door and starts the heating element in the sterilization shell 1 (initially, there is water in the sterilization shell 1). The heating element heats the water to generate steam, and the ampoule and the injection therein are sterilized.

[0026] During the process of closing the switch door, the switch door squeezes the two elastic telescopic plates 3, and the telescopic end of the elastic telescopic plate 3 drives the two second sliding plates 31 to move downward through the inclined block thereon, and the second sliding plate 31 drives the two first sliding plates 23 to move downward, and the first sliding plate 23 drives the adjacent rotating disk 24 to move downward. Taking a rotating disk 24 and the corresponding parts below it as an example, the rotating disk 24 drives the rotating block 25 and the parts on its lower side to move downward. During the downward movement of the limit member 27, the supporting block 271 in the limit member 27 gradually contacts the side wall of the ampoule bottle cap and squeezes the ampoule bottle to limit the ampoule bottle, and then the telescopic end of the elastic telescopic rod 26 contracts. When the first sliding plate 23 stops, the lower side surfaces of the elastic telescopic rod 26 and the limit member 27 just contact the circular ring on the upper side surface of the transmission member 5.

[0027] After closing the switch door, the heating element heats the water in the sterilization shell 1, and the generated water vapor continuously moves upward. Initially, the staff opens the exhaust valve so that the generated water vapor squeezes the air in the sterilization shell 1 upward to reduce the air in the sterilization shell 1. After the air is discharged, the exhaust valve is closed, and the produced steam enters from the lower end of the horn 4, passes through the sealing member 51 and the third fixed shell 41 in turn, and enters the second fixed shell 22. The steam contacts the ampoule bottle in the second fixed shell 22 and heats it, thereby sterilizing the injection.

[0028] After the steam enters the second fixed shell 22, it continues to move upward. When the steam passes through the inclined surface at the upper end of the second fixed shell 22, it flows toward the ampoule bottle under the guidance of the inclined surface. The steam passes through the bottleneck of the ampoule bottle, so that the flow path of the steam fits the surface of the ampoule bottle, avoiding the ampoule bottle from being broken due to uneven heating. Then the steam continues to move, passes through the limiter 27 and pushes the sealing plate 28 upward (initially, the lower side of the sealing plate 28 is in sealing contact with the upper side of the limiter 27), the sealing plate 28 moves upward, and then is discharged through the gap between the sealing plate 28 and the limiter 27.

[0029] During the above process, the pressure in the ampoule bottle gradually increases. If the ampoule bottle explodes accidentally, the support block 271 suddenly loses support, and the limit member 27 also loses support. At this time, the elastic telescopic rod 26 is released and drives the limit member 27 to move downward, and the limit member 27 blocks the second fixed shell 22. During the downward movement of the elastic telescopic rod 26, the elastic telescopic rod 26 and the limit member 27 squeeze the transmission member 5 to move downward, and the transmission member 5 drives the sealing ring 52 to move downward. The spring on the lower side of the transmission member 5 is compressed, and the sealing ring 52 blocks the sealing member 51 to prevent steam from entering the second fixed shell 22 and prevent the liquid medicine from leaking into the sterilization shell 1. When the second fixed shell 22 no longer discharges steam upward, the sealing plate 28 gradually descends under the action of gravity to block the upper side of the limit member 27.

[0030] In the above process, the elastic telescopic rod 26 drives the elastic hook 33 thereon to move, and limits the elastic hook 33 through the limiting ring 32. When the transmission member 5 moves downward, the circular ring on the upper side of the transmission member 5 gradually contacts the plate on the upper side of the fixed plate 2. At this time, the limiting member 27, the elastic telescopic rod 26, the sealing plate 28, the rotating block 25 and the transmission member 5 block the upper side of the second fixed shell 22 to prevent the medicine from following the steam into the sterilization shell 1, causing the medicine to be distributed on the surface of other ampoules and the surface of the sterilization shell 1, thereby causing contamination of other ampoules and the sterilization shell 1.

[0031] When the switch door on the sterilization shell 1 is opened, the elastic telescopic plate 3 is released, and the first sliding plate 23 is raised through transmission. At this time, the elastic telescopic rod 26 at the broken position of the ampoule bottle cannot move due to the limitation of the elastic hook 33 and the limiting ring 32, thereby making the rotating block 25 unable to move, and the rotating disk 24 moves upward and disengages from the rotating block 25, so that the staff can directly observe the broken ampoule bottle. After the intact ampoules are collected, the elastic hook 33 and the limiting ring 32 are separated, and then cleaned for the next use.

[0032] During the heating process of the ampoule and the injection therein, since the injection is located in the middle and lower parts of the ampoule, the ampoule is heated at the same time during heating, but the lower part of the ampoule transfers heat with the injection and heats up slowly, while the upper side heats up quickly, resulting in a temperature difference in the ampoule, and then generating thermal stress. Thermal stress can cause tensile and compressive stresses inside the glass. When the stress exceeds the strength limit of the glass, it will cause the ampoule to rupture. In addition, during the heating process, the outer surface of the ampoule is prone to water droplets when passing through the steam. The presence of water droplets may lead to uneven temperature, increased thermal stress and poor sterilization effect.

[0033] Example 2: Based on Example 1, refer to Figure 7 and Fig.10 As shown, it also includes a rotating mechanism, which is used to drive the second fixed shell 22 to rotate. The rotating mechanism is arranged in the second fixed shell 22. The rotating mechanism includes two guide members 6, which are fixedly connected to the second fixed shell 22. The guide member 6 is threaded, and there is a gap between the guide member 6 and the ampoule bottle. The second fixed shell 22 is fixedly connected to two groups of circumferentially distributed limit blocks 61. The circumferentially distributed limit blocks 61 are provided with inwardly inclined inclined surfaces from top to bottom, which are used to guide the ampoule bottle so that the ampoule bottle can smoothly enter the second fixed shell 22 and are located at the center of the second fixed shell 22. The two groups of limit blocks 61 are respectively located on the upper and lower sides of the second fixed shell 22, which are used to center the ampoule bottle and drive it to rotate. The upper side of the second fixed shell 22 is provided with an inwardly inclined inclined surface, and the position of the inclined surface corresponds to the bottleneck of the ampoule bottle. The inclined surface on the upper side of the second fixed shell 22 is used to guide the flow direction of water vapor so that the water vapor flows along the ampoule bottle.

[0034] Reference Figure 7 and Fig.10 As shown, the second fixed shell 22 is provided with two symmetrically distributed square holes 7 , the first fixed shell 21 is provided with two drainage holes 71 , and the transmission member 5 is fixed with two symmetrically distributed sealing blocks 72 , which are sealed and matched with adjacent drainage holes 71 .

[0035] Reference Figure 3 and Fig.12As shown, a conduit 73 is fixedly connected inside the sterilization shell 1, and two ends of the conduit 73 are respectively located on the upper and lower sides of the sterilization shell 1. An air guide module is arranged inside the conduit 73, and the air guide module consists of a rotating motor, a transmission shaft connected to the output shaft of the rotating motor, and a fan at the lower end of the transmission shaft. The fan is located inside the conduit 73, and is used to guide the air flow in the sterilization shell 1 so that the water vapor in the sterilization shell 1 can circulate internally.

[0036] During the sterilization process, the air guide module in the duct 73 is started, so that the air in the sterilization shell 1 enters from the upper inlet of the duct 73 and then is discharged from the lower outlet, so that the water vapor in the sterilization shell 1 is internally circulated.

[0037] During the circulation of water vapor, the water vapor passes through the guide member 6 when passing through the second fixed shell 22. The guide member 6 rotates under the impact of the steam and drives the second fixed shell 22 to rotate (the second fixed shell 22 drives the first fixed shell 21 to rotate). The second fixed shell 22 drives the ampoule bottle to rotate through the limit block 61. The ampoule bottle drives the injection inside it to rotate during the rotation. The injection gradually approaches the edge of the ampoule bottle under the action of centrifugal force, so that the injection also exists at the bottleneck of the ampoule bottle, thereby increasing the contact area between the injection and the ampoule bottle. The flow of the injection can also improve the heat exchange efficiency with the water vapor, thereby increasing the heating rate of the injection, reducing the upper and lower temperature difference of the ampoule bottle, reducing the thermal stress in the ampoule bottle, and thus reducing the probability of the ampoule bottle breaking.

[0038] During the rotation of the ampoule bottle, water droplets are easily condensed on the outer surface of the ampoule bottle. To prevent the condensation of water droplets, once water droplets appear on the outer surface of the ampoule bottle, the water droplets will separate from the ampoule bottle under the action of centrifugal force, and then the water droplets enter between the first fixed shell 21 and the second fixed shell 22 through the square hole 7, and then be discharged from the drainage hole 71, thereby avoiding uneven heating caused by the condensation of water droplets on the outer surface of the ampoule bottle, thereby reducing the probability of the ampoule bottle breaking. When the ampoule bottle breaks, the transmission member 5 will move downward through the transmission, driving the sealing ring 52 to block the sealing member 51. In this process, the transmission member 5 drives the two sealing blocks 72 thereon to move downward to block the two adjacent drainage holes 71, thereby preventing the medicine from flowing out of the drainage hole 71.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure steam sterilizer for injection production, comprising a sterilization shell (1), wherein the sterilization shell (1) is provided with a switch door, and wherein: The sterilization shell (1) further comprises a fixed plate (2), the fixed plate (2) being slidably connected to the sterilization shell (1), the fixed plate (2) being rotatably connected to uniformly distributed first fixed shells (21), the first fixed shell (21) being fixedly connected to a second fixed shell (22), the sterilization shell (1) being slidably connected to a first sliding plate (23), the sterilization shell (1) being provided with a moving component for driving the first sliding plate (23) to slide, the first sliding plate (23) being fixedly connected to uniformly distributed rotating disks (24), the rotating disks (24) being detachable and rotatable A rotating block (25) is connected, a limiting member (27) is arranged below the rotating block (25), the limiting member (27) is fixedly connected to symmetrically distributed elastic telescopic rods (26), the telescopic ends of the symmetrically distributed elastic telescopic rods (26) are all fixedly connected to the adjacent rotating block (25), the telescopic ends of the symmetrically distributed elastic telescopic rods (26) are jointly sealed and slidably connected to a sealing plate (28), the sealing plate (28) is in contact with the limiting member (27), and the fixed plate (2) is provided with a supporting assembly for supporting the second fixed shell (22).

2. A pressure steam sterilizer for injection production according to claim 1, characterized in that: The limiting member (27) is composed of two semicircular rings and a square plate. A hole is opened in the middle of the square plate. The hole is narrow at the top and wide at the bottom. The limiting member (27) is provided with circumferentially distributed support blocks (271). The support blocks (271) are used to fix the ampoule bottle.

3. A pressure steam sterilizer for injection production according to claim 1, characterized in that: The moving assembly comprises symmetrically distributed elastic telescopic plates (3), the symmetrically distributed elastic telescopic plates (3) are all fixedly connected to the sterilization shell (1), the opposite sides of the telescopic ends of the symmetrically distributed elastic telescopic plates (3) are all fixedly connected to symmetrically distributed inclined blocks, the elastic telescopic plates (3) are limitedly slidably connected to symmetrically distributed second sliding plates (31) through the symmetrically distributed inclined blocks, the second sliding plates (31) are all fixedly connected to the equidistantly distributed first sliding plates (23), and the telescopic ends of the elastic telescopic plates (3) are squeezed and matched with the switch door on the sterilization shell (1).

4. A pressure steam sterilizer for injection production according to claim 3, characterized in that: The first fixed shell (21) is fixedly connected to a limiting ring (32), the elastic telescopic rod (26) is fixedly connected to an elastic hook (33), and the elastic hook (33) is limitedly matched with the limiting ring (32).

5. A pressure steam sterilizer for injection production according to claim 1, characterized in that: The support assembly comprises a speaker component (4); a third fixed shell (41) is fixedly connected to the upper side of the speaker component (4); the third fixed shell (41) is rotatably connected to the adjacent second fixed shell (22); a fixed rod (42) is fixedly connected to the upper side of the third fixed shell (41); the fixed rod (42) is rotatably connected to a rotating ring (43); and a bottom cover assembly for sealing the speaker component (4) is arranged inside the third fixed shell (41).

6. A pressure steam sterilizer for injection production according to claim 5, characterized in that: The rotating ring (43) is provided with circumferentially distributed grooves for guiding gas.

7. A pressure steam sterilizer for injection production according to claim 5, characterized in that: The bottom cover assembly comprises a transmission member (5), the transmission member (5) is slidably connected to the third fixed shell (41), the speaker member (4) is fixedly connected to a sealing member (51), a spring is provided between the transmission member (5) and the sealing member (51), the transmission member (5) is fixedly connected to a sealing ring (52), the sealing ring (52) is sealingly matched with the sealing member (51), the transmission member (5) is sealingly extruded with the adjacent elastic telescopic rod (26) and the adjacent limiting member (27), and the upper side of the transmission member (5) is sealingly matched with the fixed plate (2).

8. A pressure steam sterilizer for injection production according to claim 7, characterized in that: The invention also comprises a rotating mechanism, the rotating mechanism being used for driving the second fixed shell (22) to rotate, the rotating mechanism being arranged in the second fixed shell (22), the rotating mechanism comprising a guide member (6), the guide member (6) being fixedly connected in the second fixed shell (22), the guide member (6) being in a threaded shape, the second fixed shell (22) being fixedly connected with two groups of circumferentially distributed limit blocks (61), the two groups of limit blocks (61) being respectively located at the upper and lower sides of the second fixed shell (22), and being used for centering the ampoule bottle and driving it to rotate, the upper side of the second fixed shell (22) being provided with an inwardly inclined inclined surface, the position of the inclined surface corresponding to the bottleneck of the ampoule bottle.

9. A pressure steam sterilizer for injection production according to claim 8, characterized in that: The second fixed shell (22) is provided with a square hole (7), the first fixed shell (21) is provided with a drainage hole (71), the transmission member (5) is fixedly connected with a sealing block (72), and the sealing block (72) is in sealing cooperation with the drainage hole (71).

10. A pressure steam sterilizer for injection production according to claim 8, characterized in that: A conduit (73) is fixedly connected inside the sterilization shell (1), and two ends of the conduit (73) are respectively located at the upper and lower sides of the sterilization shell (1), and an air guide module is arranged inside the conduit (73) for guiding air flow.

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