Ethylene oxide sterilization apparatus with multi-bottle piercing function

Abstract

The present application relates to the technical field of sterilization equipment, in particular to an ethylene oxide sterilization device with multi-bottle piercing function, comprising a whole machine shell, the whole machine shell is provided with a sterilization chamber, a central total cavity and a piercing assembly. The piercing assembly comprises a piercing shell and a single-side piercing device. The single-side piercing device comprises a fixed insertion cylinder, a double-bottle clamp, a piercing assembly, a pressing assembly, a starting limiter and a locking device. The sterilization device described in the case adopts two independent sterilization chambers, and the use scene is more flexible. The sterilization device described in the case only needs one telescopic structure for each single-side piercing device to complete the pressing and piercing of the gas cylinder. When the double-bottle clamp of the single-side piercing device and the ethylene oxide gas cylinder descend to the bottom, the automatic locking can be realized, even if the telescopic structure is misoperated to produce upward action, the double-bottle clamp and the ethylene oxide gas cylinder will remain stable posture, avoiding gas leakage.

Description

Technical Field

[0001] This application relates to the field of sterilization equipment technology, specifically to an ethylene oxide sterilization device with a multi-bottle puncture function. Background Technology

[0002] Ethylene oxide (EO) cylinder sterilization equipment utilizes bottled ethylene oxide gas for low-temperature sterilization, suitable for heat-sensitive and humidity-sensitive medical devices and items. It boasts advantages such as strong penetrating power, low-temperature sterilization, and thorough sterilization. Its structure includes at least a sterilization chamber for loading the items to be sterilized, and a puncture device for loading and puncturing the ethylene oxide cylinder. The puncture device opens the valve of the ethylene oxide cylinder, then delivers the ethylene oxide gas inside into the sterilization chamber.

[0003] Existing ethylene oxide sterilization devices have the following problems:

[0004] 1. The sterilization chamber is singular; once all gas cylinders are punctured, the gas inside is transferred to this single sterilization chamber. This single, large-volume sterilization chamber has low utilization for smaller materials to be sterilized and cannot simultaneously sterilize two different materials separately.

[0005] 2. In existing sterilization devices, each puncture device includes at least two telescopic mechanisms: a telescopic mechanism for driving the gas cylinder cap downwards, and a telescopic mechanism for driving the puncture device upwards, which increases equipment cost and control complexity.

[0006] 3. Existing sterilization devices lack corresponding foolproof protection devices. In particular, if the telescopic mechanism used to drive the puncture device upward loses power and retracts downward, the puncture device may detach from the ethylene oxide cylinder, causing gas leakage and posing a risk. Summary of the Invention

[0007] An ethylene oxide sterilization device with multi-bottle puncture function includes a machine housing, which has two sterilization chambers, one on the left and one on the right. A central main chamber is also provided at the front center of the machine housing. A sliding cover plate for covering the central main chamber can also be slidably provided on the machine housing.

[0008] The central cavity is provided with a puncture assembly, which includes a puncture shell and two single-sided puncturers, one on the left and one on the right, symmetrically distributed in the puncture shell.

[0009] The piercing shell includes a rectangular shell, inside which, from top to bottom, are arranged an upper driving chamber, a middle piercing chamber, and a lower adjusting chamber; between the middle piercing chamber and the lower adjusting chamber, there are two adjusting holes, one on the left and one on the right, which are used to accommodate the corresponding cone-shaped base to pass through; the front end face of the rectangular shell is provided with connecting end plates that are connected to the central main cavity.

[0010] The single-sided puncturer includes a fixed insert, a double-bottle clamp, a puncture assembly, a pressing assembly, an activation limiter, and a locking device.

[0011] The fixed insert includes a hollow cylinder with an open top. A limiting groove is provided at the front and rear of the hollow cylinder. A central circular tube is located above the bottom surface of the hollow cylinder, and a central compression spring is located inside the central circular tube. The fixed insert also includes a bottom locking cavity, which includes an adjusting lower hole located below the cone-shaped base, a circular central hole located inside the cone-shaped base and communicating with the adjusting lower hole, and arc-shaped longitudinal holes evenly distributed circumferentially on the upper surface of the circular central hole. The bottom locking cavity also includes a limiting ring groove formed by expanding outward from the inner wall of the middle diameter insertion hole. The lower part of the limiting ring groove communicates with the arc-shaped longitudinal holes, and a spring baffle is provided on the outer wall of the limiting ring groove. A fixed insert lug is provided at each of the four corners of the lower end face of the hollow cylinder, and is fixedly connected to the piercing chamber.

[0012] The dual-cylinder clamp is slidably disposed within a fixed insert. The dual-cylinder clamp includes a clamp base plate, with a cylinder insert for loading ethylene oxide cylinders located at the front and rear of the clamp base plate. Each cylinder insert has a limiting insert plate on its outer side that engages with a corresponding limiting groove. The lower end of the clamp base plate has a central insert rod that inserts into a central circular tube. The clamp base plate and the central insert rod also have insert rod central holes. The dual-cylinder clamp also includes a spring retaining ring located on the lower half of the inner wall of the insert rod central hole, radial insertion holes evenly distributed circumferentially on the lower end of the inner wall of the insert rod central hole, and locking slots evenly distributed circumferentially on the outer wall of the central insert rod. The number of locking slots is the same as that of the radial insertion holes and they are alternately distributed. The locking slots include an inclined section with an opening at the lower end and a horizontal section located above the inclined section. The outer diameter of the central insert rod is larger than the inner diameter of the small diameter bottom hole, and the outer diameter of the central insert rod is smaller than the inner diameter of the medium diameter insertion hole.

[0013] The puncture assembly includes two puncture probes, one in front and one behind, located above the bottom of the hollow cylinder. Each puncture probe has a branch pipe below it that is inserted into the lower adjustment chamber. The puncture assembly also includes a transverse pipe that is connected to the ends of both branch pipes. The transverse pipe passes through the lower adjustment chamber and enters the corresponding sterilization chamber.

[0014] The pressing assembly uses a pressing ethylene oxide cylinder and a dual-cylinder clamp. The pressing assembly includes a pressing base, and the lower end of the pressing base is provided with a pressing cavity for accommodating two ethylene oxide cylinders. The middle part of the pressing cavity is provided with a pressing core rod that is inserted into the central hole of the insertion rod. The pressing assembly also includes a telescopic mechanism provided in the upper drive cavity. The lower end of the telescopic mechanism is inserted into the puncture center chamber and fixedly connected to the upper end of the pressing base. A flexible pad is provided along the upper edge of the inner cavity of the pressing cavity.

[0015] The start-up limiter includes a locking upper shaft slidably inserted into the central hole of the plug rod, a spring core shaft located at the lower end of the locking upper shaft and passing through the spring retaining ring, a locking compression spring located around the outer circumference of the spring core shaft above the spring retaining ring, radial plug rods evenly distributed around the outer circumference of the spring core shaft and inserted into radial plug holes one by one, and an active plug vertically located at the stop end of the radial plug rod. The start-up limiter also includes a radial slider slidably disposed in the radial plug hole, a receiving longitudinal hole located inside the radial slider for accommodating the radial plug rod, an inclined plug hole that passes through the radial slider in the front-back direction and is inserted into the active plug, and a locking plug located outside the radial slider.

[0016] The locking device includes a rotatable locking ring disposed in the limiting ring groove, a receiving arc groove disposed on the outer wall of the locking ring for accommodating a spring baffle, an arc-shaped compression spring disposed in the receiving arc groove and abutting against the spring baffle, a locking plug circumferentially distributed on the inner wall of the locking ring and inserted into the locking slot, a follower rod circumferentially distributed at the lower end of the locking ring and inserted into the arc-shaped longitudinal hole, a circular torsion plate disposed at the lower end of the follower rod and rotatably disposed in the circular central hole, and an adjusting torsion rod disposed below the circular torsion plate and passing through the adjusting lower hole.

[0017] The beneficial effects of this invention are:

[0018] The ethylene oxide sterilization device with multi-bottle puncture function described in this case adopts two independent sterilization chambers, each sterilization chamber is equipped with a puncture assembly, making the application more flexible: when there is a small amount of material to be sterilized, either sterilization chamber can be opened alone; when there is a large amount of material to be sterilized or there are two types of materials, they can be placed in the two sterilization chambers respectively.

[0019] The ethylene oxide sterilization device with multi-bottle puncture function described in this case requires only one telescopic structure for each single-sided puncturer to complete the two actions of compressing and puncturing the gas cylinder in sequence. The structure is ingenious and reduces the complexity of equipment control.

[0020] The ethylene oxide sterilization device with multi-bottle puncture function described in this case can automatically lock when the double-bottle clamp of the single-sided puncturer and the ethylene oxide cylinder descend to the bottom. Even if the telescopic structure is misoperated and causes upward movement, the double-bottle clamp and the ethylene oxide cylinder will maintain a stable posture to avoid gas leakage; the locking posture can also be manually controlled to contact the above-mentioned locking posture. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of one embodiment of the ethylene oxide sterilization device.

[0023] Figure 2 This is a schematic diagram of one embodiment of the casing of the entire machine.

[0024] Figure 3 This is a schematic diagram of one embodiment of the puncture assembly.

[0025] Figure 4 This is a schematic diagram of one embodiment of the piercing of the main shell.

[0026] Figure 5 This is a schematic diagram of one embodiment of the single-sided puncturer.

[0027] Figure 6 This is an isometric sectional view of the single-sided puncturer in its first state (the telescopic mechanism is omitted).

[0028] Figure 7 This is an isometric sectional view of the second state of the single-sided puncturer (the telescopic mechanism is omitted).

[0029] Figure 8 This is an isometric sectional view of the single-sided puncturer in its third state (the telescopic mechanism is omitted).

[0030] Figure 9 This is an isometric sectional view of one embodiment of the fixed insert.

[0031] Figure 10 This is a schematic diagram of one embodiment of the double-bottle clamp.

[0032] Figure 11 This is an isometric sectional view of one embodiment of the double-bottle clamp.

[0033] Figure 12 This is a schematic diagram of one embodiment of the startup limiter.

[0034] Figure 13 This is an isometric sectional view of one embodiment of the dual-bottle clamp and the start-up limiter.

[0035] Figure 14 This is an isometric sectional view of the ethylene oxide cylinder in its first state.

[0036] Figure 15 This is an isometric sectional view of the ethylene oxide cylinder in its second state.

[0037] Figure 16 This is a schematic diagram of one embodiment of the puncture component.

[0038] Figure 17 This is a partial cross-sectional view of one embodiment of the pressure-down assembly.

[0039] Figure 18 This is a schematic diagram of one embodiment of the locking device.

[0040] The numbers in the diagram are as follows:

[0041] 9. Outer casing; 91. Sterilization chamber; 92. Central main chamber; 93. Sliding cover;

[0042] 8. Piercing assembly; 81. Piercing housing; 811. Rectangular housing; 812. Upper drive chamber; 813. Middle chamber; 814. Lower adjustment chamber; 815. Adjustment hole; 816. Connecting end plate; 82. Single-sided piercing device.

[0043] 1. Fixed insert, 11. Hollow cylinder, 12. Limiting groove, 13. Central round tube, 131. Cylindrical base, 132. Large diameter upper hole, 133. Medium diameter insertion hole, 134. Small diameter bottom hole, 135. First arc plate, 136. Conical base, 14. Central compression spring, 15. Bottom locking cavity, 151. Adjusting lower hole, 152. Circular middle hole, 153. Arc-shaped longitudinal hole, 154. Limiting ring groove, 155. Spring baffle, 16. Fixed insert ear;

[0044] 2. Double-bottle clamp, 21. Clamp base plate, 22. Gas cylinder insert, 23. Limiting insert plate, 24. Central insert rod, 25. Insert rod center hole, 26. Spring retaining ring, 27. Radial insert hole, 28. Locking slot, 281. Inclined section, 282. Horizontal section, 29. Second arc plate;

[0045] 3. Puncture assembly; 31. Puncture probe; 32. Branch tubing; 33. Lateral tubing;

[0046] 4. Pressing assembly; 41. Pressing base; 42. Pressing cavity; 43. Pressing core rod; 44. Telescopic mechanism; 45. Flexible pad.

[0047] 5. Start limiter, 51. Locking upper shaft, 52. Spring spindle, 53. Locking compression spring, 54. Radial insert rod, 55. Active plug, 56. Radial slider, 57. Accommodating longitudinal hole, 58. Inclined insertion hole, 59. Locking plug;

[0048] 6. Locking device; 61. Locking ring; 62. Receiving arc groove; 63. Arc-shaped compression spring; 64. Locking plug; 65. Follower rod; 66. Circular torsion plate; 67. Adjusting torsion bar;

[0049] 7. Ethylene oxide cylinder; 71. Gas valve. Detailed Implementation

[0050] An ethylene oxide sterilization device with multi-bottle puncture function includes a machine housing 9, which has two sterilization chambers 91, one on the left and one on the right. The machine housing 9 also has a central main cavity 92 at the front center. The machine housing 9 can also be slidably provided with a sliding cover plate 93 for covering the central main cavity 92.

[0051] The central cavity 92 is provided with a piercing assembly 8, which includes a piercing shell 81 and two single-sided piercing devices 82 symmetrically distributed in the piercing shell 81, one on the left and one on the right.

[0052] The piercing shell 81 includes a rectangular shell 811. Inside the rectangular shell 811, from top to bottom, there are a driving upper chamber 812, a piercing middle chamber 813, and an adjusting lower chamber 814. There are two adjusting round holes 815, one on the left and one on the right, between the piercing middle chamber 813 and the adjusting lower chamber 814. The adjusting round holes 815 are used to accommodate the corresponding cone base 136 passing through. The front end face of the rectangular shell 811 is provided with connecting end plates 816 that are connected to the central cavity 92.

[0053] The single-sided puncturer 82 includes a fixed insert 1, a double-bottle clamp 2, a puncture assembly 3, a pressing assembly 4, an activation limiter 5, and a locking device 6.

[0054] The fixed insert 1 includes a hollow cylindrical body 11 with an open upper end. A limiting groove 12 is provided at the front and rear of the hollow cylindrical body 11. A central circular tube 13 is provided above the bottom surface of the hollow cylindrical body 11, and a central compression spring 14 is provided inside the central circular tube 13. The fixed insert 1 also includes a bottom locking cavity 15, which includes an adjusting lower hole 151 located below the conical base 136, and a hole located inside the conical base 136 and connected to the adjusting lower hole 151. The circular central hole 152 is connected, and the arc-shaped longitudinal holes 153 are evenly distributed on the upper end face of the circular central hole 152. The bottom lock cavity 15 also includes a limiting ring groove 154 formed by expanding the inner wall of the middle diameter insertion hole 133. The limiting ring groove 154 is connected to the arc-shaped longitudinal hole 153 below. A spring baffle 155 is provided on the outer wall of the limiting ring groove 154. A fixed insert 16 is provided at each of the four corners of the lower end face of the hollow cylinder 11 and is fixedly connected to the piercing central chamber 813.

[0055] The dual-cylinder clamp 2 is slidably disposed within the fixed insert 1. The dual-cylinder clamp 2 includes a clamp base plate 21. The clamp base plate 21 has a cylinder insert 22 for loading ethylene oxide cylinders 7 at its front and rear, respectively. Each cylinder insert 22 has a limiting insert plate 23 on its outer side that engages with a corresponding limiting groove 12. The lower end of the clamp base plate 21 has a central insert rod 24 that inserts into the central circular tube 13. The clamp base plate 21 and the central insert rod 24 also have insert rod central holes 25. The dual-cylinder clamp 2 further includes a central hole 25 provided in the insert rod. The lower half of the inner wall of the central hole 25 has a spring retaining ring 26 and radial insertion holes 27 evenly distributed circumferentially at the lower end of the inner wall of the central hole 25. The outer wall of the central insertion rod 24 is also evenly distributed with locking slots 28 circumferentially. The number of locking slots 28 and radial insertion holes 27 is the same and they are alternately distributed. The locking slot 28 includes an inclined section 281 with an opening at the lower end and a horizontal section 282 disposed above the inclined section 281. The outer diameter of the central insertion rod 24 is larger than the inner diameter of the small diameter bottom hole 134 and smaller than the inner diameter of the medium diameter insertion hole 133.

[0056] The puncture assembly 3 includes two puncture probes 31, one in front and one behind, located above the bottom of the hollow cylinder 11. Each puncture probe 31 has a branch pipe 32 below it that is inserted into the lower adjustment chamber 814. The puncture assembly 3 also includes a transverse pipe 33 that is connected to the ends of both branch pipes. The transverse pipe 33 passes through the lower adjustment chamber 814 and enters the corresponding sterilization chamber 91.

[0057] The pressing assembly 4 uses a pressing ethylene oxide cylinder 7 and a double-cylinder clamp 2. The pressing assembly 4 includes a pressing base 41. The lower end of the pressing base 41 is provided with a pressing cavity 42 for accommodating two ethylene oxide cylinders 7. The middle part of the pressing cavity 42 is provided with a pressing core rod 43 that is inserted into the insertion rod hole 25. The pressing assembly 4 also includes a telescopic mechanism 44 provided in the driving upper cavity 812. The lower end of the telescopic mechanism 44 is inserted into the piercing middle chamber 813 and fixedly connected to the upper end of the pressing base 41. A flexible pad 45 is provided on the upper edge of the inner cavity of the pressing cavity 42.

[0058] The start-up limiter 5 includes a locking upper shaft 51 slidably inserted into the insertion hole 25, a spring spindle 52 located at the lower end of the locking upper shaft 51 and passing through the spring retaining ring 26, a locking compression spring 53 located above the spring retaining ring 26 and surrounding the outer circumference of the spring spindle 52, radial insertion rods 54 circumferentially distributed around the outer circumference of the spring spindle 52 and interlocking with the radial insertion holes 27, and an active plug 55 vertically located at the stop end of the radial insertion rods 54. The start-up limiter 5 also includes a radial slider 56 slidably disposed in the radial insertion hole 27, a longitudinal hole 57 located inside the radial slider 56 for accommodating the radial insertion rods 54, an inclined insertion hole 58 extending through the radial slider 56 in the front-back direction and interlocking with the active plug 55, and a locking plug 59 located outside the radial slider 56.

[0059] The locking device 6 includes a rotatable locking ring 61 disposed in the limiting ring groove 154, an accommodating arc groove 62 disposed on the outer wall of the locking ring 61 for accommodating the spring baffle 155, an arc-shaped compression spring 63 disposed in the accommodating arc groove 62 and abutting against the spring baffle 155, a locking plug 64 circumferentially distributed on the inner wall of the locking ring 61 and inserted into the locking slot 28, and a follower rod 65 circumferentially distributed at the lower end of the locking ring 61 and inserted into the arc-shaped longitudinal hole 153, a circular torsion plate 66 disposed at the lower end of the follower rod 65 and rotatably disposed in the circular central hole 152, and an adjusting torsion rod 67 disposed below the circular torsion plate 66 and passing through the adjusting lower hole 151.

[0060] As a further implementation plan:

[0061] The central circular tube 13 includes a cylindrical base 131. The cylindrical base 131 has a large-diameter upper hole 132, a medium-diameter insertion hole 133, and a small-diameter bottom hole 134 arranged sequentially from top to bottom inside. The central circular tube 13 also includes a first arc plate 135 that is evenly distributed around the circumference of the small-diameter bottom hole 134 and supported on the inner side of the central compression spring 14. The central circular tube 13 also includes a conical base 136 located below the bottom surface of the hollow cylinder 11.

[0062] The double-bottle clamp 2 also includes a second arc plate 29 that is circumferentially distributed on the lower end face of the central insert rod 24 and is staggered with the first arc plate 135.

[0063] It should be noted that, thanks to the staggered connection of the first arc plate 135 and the second arc plate 29, the inner wall of the central compression spring 14 is always structurally supported, which prevents it from maintaining axial concentricity during the extension and retraction process, and prevents it from deflecting and getting stuck in the central circular tube 13.

[0064] Furthermore, the driving upper cavity 812 is a closed chamber, while the puncture middle chamber 813 and the adjustment lower chamber 814 are open oral chambers with openings at the front end.

[0065] Furthermore, the ethylene oxide cylinder 7 is equipped with a gas valve 71 at its opening. The gas valve 71 is normally closed and opens when compressed.

[0066] The sterilization device described in this case can load two ethylene oxide cylinders 7 into each single-sided puncturer 82. The puncturing component 3 punctures the ethylene oxide cylinders 7 and introduces the ethylene oxide sterilizing gas inside into the corresponding sterilization chamber 91.

[0067] When the quantity of materials to be sterilized is small, place the materials in any one of the sterilization chambers 91, and then install and puncture the ethylene oxide cylinder 7 in the corresponding single-sided puncturer 82. When the quantity of materials to be sterilized is large, use both sterilization chambers 91 and install and puncture the ethylene oxide cylinder 7 in each of the two single-sided puncturers 82.

[0068] Taking the single-sided piercing device 82 located on the right as an example, its piercing process is as follows:

[0069] S1, containing ethylene oxide cylinder 7:

[0070] As per the instruction manual Figure 6 As shown:

[0071] The pressing component 4 is in a high position, and the central compression spring 14 acts on the double bottle clamp 2 to make it in a high position, that is, the limiting insert plate 23 is against the upper edge of the limiting slide groove 12.

[0072] Two ethylene oxide cylinders 7 are sequentially inserted into the two cylinder inserts 22 of the double cylinder clamp 2 through the front opening of the punctured middle chamber 813;

[0073] As per the instruction manual Figure 7 As shown:

[0074] The telescopic mechanism 44 is activated, causing the pressing component 4 to move downward as a whole until the pressing cavity 42 is fitted onto the upper end of the ethylene oxide cylinder 7, and the flexible pad 45 abuts against the upper end of the ethylene oxide cylinder 7.

[0075] At the same time, the pressing core rod 43 is inserted into the insertion rod hole 25 and squeezes and locks the upper shaft 51, spring core rod 52, radial insertion rod 54, and active plug 55 downward a large distance L. The active plug 55 acts on the inclined insertion hole 58, causing the accommodating longitudinal hole 57 and the locking plug 59 to retract radially inward.

[0076] However, due to insufficient retraction stroke, the locking plug 59 is still stuck at the bottom of the large diameter upper hole 132, so the downward pressing component 4 cannot drive the double bottle clamp 2 downward.

[0077] S2, Tighten and puncture ethylene oxide cylinder 7:

[0078] As per the instruction manual Figure 8 As shown:

[0079] The pressing component 4 continues to descend a small distance, and the flexible pad 45 undergoes a slight deformation under pressure, thus pressing the ethylene oxide cylinder 7 tightly.

[0080] The lower pressure core rod 43 presses and locks the upper shaft 51 to the limit position, and the locking plug 59 retracts completely and no longer blocks the downward freedom of the double bottle clamp 2;

[0081] The pressing component 4 squeezes the ethylene oxide cylinder 7 and the double-cylinder clamp 2 downwards against the resistance of the central compression spring 14 until the gas valve at the lower end of the ethylene oxide cylinder 7 is opened by the corresponding puncture probe 31. The ethylene oxide gas enters the transverse pipeline 33 through the puncture probe 31 and the branch pipeline 32, and finally enters the corresponding sterilization chamber 91 to sterilize the material.

[0082] It should be noted that the sterilization device described in this case can also effectively lock the positions of the ethylene oxide cylinder 7 and the double-cylinder clamp 2 when the telescopic mechanism 44 loses power or is mistakenly operated upwards. The double-cylinder clamp 2 and the ethylene oxide cylinder 7 can only be released after manual unlocking. The specific method is as follows:

[0083] S3, Locking process:

[0084] When the double-bottle clamp 2 descends to its lowest position, the locking device 6 engages with the locking slot 28 to lock the double-bottle clamp 2.

[0085] When the locking slot 28 moves downward, the inclined section 281 first acts on the corresponding locking plug 64, thereby driving the locking ring 61 and the receiving arc groove 62 to rotate against the damping of the arc compression spring 63.

[0086] When the horizontal section 282 descends to the same height as the locking plug 64, the arc-shaped compression spring 63 drives the locking ring 61 and the receiving arc groove 62 to rotate, so that the locking plug 64 is inserted into the stop end of the horizontal section 282.

[0087] Even if the telescopic mechanism 44 suddenly malfunctions and moves upward, the central compression spring 14 will not be able to drive the double-bottle clamp 2 and the ethylene oxide cylinder 7 to move upward. The connection between the ethylene oxide cylinder 7 and the puncture component 3 will remain stable, and sterilization gas will be effectively output.

[0088] S4, manual unlocking process:

[0089] By adjusting the lower chamber 814 to twist the adjusting torsion bar 67, the entire locking device 6 is driven to rotate in the opposite direction against the damping of the arc-shaped compression spring 63.

[0090] The locking plug 64 rotates from the stop end of the horizontal section 282 to the connection between the horizontal section 282 and the inclined section 281, the central compression spring 14 acts on the double bottle clamp 2 to make it move upward, and the locking plug 64 slides out from the inclined section 281.

[0091] It should be noted that the upper edge of the insertion rod hole 25 is provided with a guide cone groove that is wider at the top and narrower at the bottom to guide the insertion of the pressing core rod 43.

[0092] It should be noted that the cross-sectional contour edge of the pressure chamber 42 is at least 1 mm away from the two ethylene oxide cylinders 7, so that the pressure chamber 42 can be smoothly fitted onto the two ethylene oxide cylinders 7, and there will be no excessive frictional resistance between the side wall of the pressure chamber 42 and the two ethylene oxide cylinders 7.

Claims

1. An ethylene oxide sterilization device with multi-bottle puncture function, comprising a casing (9), wherein the casing (9) has two sterilization chambers (91) on the left and right, and a central main cavity (92) is provided at the front center of the casing (9), wherein a puncture assembly (8) is provided in the central main cavity (92), characterized in that: The puncture assembly (8) includes a puncture shell (81) and two single-sided puncturers (82) symmetrically distributed in the puncture shell (81), one on the left and one on the right. The piercing shell (81) includes a rectangular shell (811), and the rectangular shell (811) is provided with a driving upper chamber (812), a piercing middle chamber (813), and an adjusting lower chamber (814) from top to bottom inside. The single-sided puncturer (82) includes a fixed insert (1), a double bottle clamp (2), a puncture assembly (3), and a pressing assembly (4). The fixed insert (1) includes a hollow cylinder (11) with an opening at the top. A limiting groove (12) is provided at the front and rear of the hollow cylinder (11). A central round tube (13) is provided above the bottom surface of the hollow cylinder (11). A central compression spring (14) is provided inside the central round tube (13). The double-cylinder clamp (2) is slidably disposed in the fixed insert (1). The double-cylinder clamp (2) includes a clamp base plate (21). The clamp base plate (21) is provided with a cylinder insert (22) for loading ethylene oxide cylinders (7) at the front and rear respectively. Each cylinder insert (22) is provided with a limiting insert plate (23) on the outside of the cylinder insert (22) for inserting into the corresponding limiting slide groove (12). The lower end of the clamp base plate (21) is provided with a central insert rod (24) inserted into the central round tube (13). The clamp base plate (21) and the central insert rod (24) are also provided with insert rod central holes (25). The puncture assembly (3) includes two puncture probes (31) located above the bottom of the hollow cylinder (11), one in front and one behind. Each puncture probe (31) has a branch pipe (32) below it that is inserted into the lower regulating chamber (814). The puncture assembly (3) also includes a transverse pipe (33) that is connected to the ends of both branch pipes. The transverse pipe (33) passes through the lower regulating chamber (814) and enters the corresponding sterilization chamber (91). The pressing assembly (4) uses a pressing ethylene oxide cylinder (7) and a double-cylinder clamp (2). The pressing assembly (4) includes a pressing base (41). The lower end of the pressing base (41) is provided with a pressing cavity (42) for accommodating two ethylene oxide cylinders (7). The middle part of the pressing cavity (42) is provided with a pressing core rod (43) inserted into the insertion rod hole (25). The pressing assembly (4) also includes a telescopic mechanism (44) provided in the driving upper cavity (812). The lower end of the telescopic mechanism (44) is inserted into the puncture chamber (813) and fixedly connected to the upper end of the pressing base (41).

2. The ethylene oxide sterilization device with multi-bottle puncture function according to claim 1, characterized in that: The double bottle clamp (2) also includes a spring retaining ring (26) provided on the lower half of the inner wall of the insertion rod hole (25), and radial insertion holes (27) evenly distributed circumferentially on the lower end of the inner wall of the insertion rod hole (25). The outer wall of the central insertion rod (24) is also evenly distributed with locking slots (28) circumferentially. The number of locking slots (28) and radial insertion holes (27) are the same and they are alternately distributed. The single-sided puncturer (82) also includes an activation limiter (5) disposed within the double-bottle clamp (2). The activation limiter (5) includes a locking upper shaft (51) slidably inserted into the insertion rod hole (25), a spring spindle (52) disposed at the lower end of the locking upper shaft (51) and passing through the spring retaining ring (26), a locking compression spring (53) wrapped around the outer circumference of the spring spindle (52) and located above the spring retaining ring (26), and circumferentially distributed around the outer circumference of the spring spindle (52) and inserted into the radial insertion holes (27) one by one. The starting limiter (5) also includes a radial slider (56) slidably disposed in the radial insertion hole (27), a longitudinal hole (57) disposed inside the radial slider (56) for accommodating the radial insertion rod (54), an inclined insertion hole (58) disposed through the radial slider (56) in the front-back direction and engaged with the active plug (55), and a locking plug (59) disposed outside the radial slider (56).

3. The ethylene oxide sterilization device with multi-bottle puncture function according to claim 2, characterized in that: The central circular tube (13) includes a cylindrical base (131), and the cylindrical base (131) is provided with a large-diameter upper hole (132), a medium-diameter insertion hole (133), and a small-diameter bottom hole (134) from top to bottom. The central circular tube (13) also includes a first arc plate (135) that is evenly distributed around the circumference of the small-diameter bottom hole (134) and supported on the inner side of the central compression spring (14). The central circular tube (13) also includes a conical base (136) located below the bottom surface of the hollow cylinder (11). The double bottle clamp (2) also includes a second arc plate (29) that is circumferentially distributed on the lower end face of the central insert (24) and is staggered with the first arc plate (135).

4. The ethylene oxide sterilization device with multi-bottle puncture function according to claim 3, characterized in that: The locking slot (28) includes an inclined section (281) with an opening at the lower end and a horizontal section (282) disposed above the inclined section (281).

5. An ethylene oxide sterilization device with multi-bottle puncture function according to claim 4, characterized in that: The fixed insert (1) also includes a bottom locking cavity (15), which includes an adjustment lower hole (151) located below the cone base (136), a circular central hole (152) located inside the cone base (136) and communicating with the adjustment lower hole (151), and arc-shaped longitudinal holes (153) evenly distributed on the upper surface of the circular central hole (152). The bottom locking cavity (15) also includes a limiting ring groove (154) formed by expanding the inner wall of the middle diameter insert hole (133). The limiting ring groove (154) is connected to the arc-shaped longitudinal hole (153) below, and a spring baffle (155) is provided on the outer wall of the limiting ring groove (154). The single-sided piercing device (82) also includes a locking device (6), which includes a rotatable locking ring (61) disposed in the limiting ring groove (154), a receiving arc groove (62) disposed on the outer wall of the locking ring (61) for accommodating the spring baffle (155), an arc-shaped compression spring (63) disposed in the receiving arc groove (62) and abutting against the spring baffle (155), a locking plug (64) circumferentially distributed on the inner wall of the locking ring (61) and inserted into the locking slot (28), and a follower rod (65) circumferentially distributed at the lower end of the locking ring (61) and inserted into the arc-shaped longitudinal hole (153), a circular torsion plate (66) disposed at the lower end of the follower rod (65) and rotatable in the circular central hole (152), and an adjusting torsion rod (67) disposed below the circular torsion plate (66) and passing through the adjusting lower hole (151).

6. The ethylene oxide sterilization device with multi-bottle puncture function according to claim 5, characterized in that: There are two adjusting round holes (815) on the left and right between the puncture chamber (813) and the adjusting lower chamber (814). The adjusting round holes (815) are used to accommodate the corresponding cone base (136) to pass through. The rectangular shell (811) has connecting end plates (816) on its front end face and lower end face respectively, which are connected to the central cavity (92).

7. An ethylene oxide sterilization device with multi-bottle puncture function according to claim 6, characterized in that: The hollow cylinder (11) has a fixed insert (16) at each of the four corners of its lower end face, which is fixedly connected to the pierced central chamber (813).

8. An ethylene oxide sterilization device with multi-bottle puncture function according to claim 7, characterized in that: The outer casing (9) may also be slidably provided with a sliding cover (93) for shielding the central cavity (92).

9. An ethylene oxide sterilization device with multi-bottle puncture function according to claim 8, characterized in that: The upper edge of the inner cavity of the pressure chamber (42) is provided with a flexible pad (45).

10. An ethylene oxide sterilization device with multi-bottle puncture function according to claim 9, characterized in that: The outer diameter of the central insertion rod (24) is greater than the inner diameter of the small diameter bottom hole (134), and the outer diameter of the central insertion rod (24) is smaller than the inner diameter of the medium diameter insertion hole (133).

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