A pulsating vacuum steam sterilizer

Abstract

The present invention relates to the field of sterilization equipment, and specifically to a pulsating vacuum steam sterilizer, comprising: a sterilizer body, a sterilization chamber is arranged inside the sterilizer body; a movable partition is connected to the sterilization chamber in a transverse sliding manner, and the inner wall of the sterilization chamber is provided with positioning grooves on both sides of the movable partition, and extension seats are arranged on both sides of the movable partition to extend into the interior of the positioning groove, and a positioning piece is inserted into the interior of the extension seat, and a pull block is installed at one end of the positioning piece. In this scheme, when the number of medical devices that need to be purified and sterilized is small, the positioning piece is pulled out from the positioning groove and the extension seat by the pull block, and the movable partition can slide inside the sterilization chamber at this time, as shown in Figure 4, and after the movement, the positioning piece is pushed back into the positioning groove by the pull block. Under the isolation of the movable partition, the flow area of ​​the steam inside the sterilization chamber is reduced, and only a small amount of steam is needed to completely fill the sterilization chamber, thereby reducing the demand for steam and the amount of gas suction during the purification process.

Description

Technical Field

[0001] The invention relates to the field of sterilization equipment, in particular to a pulsating vacuum steam sterilizer. Background Art

[0002] The pulsating vacuum sterilizer uses saturated water vapor as the sterilization medium and adopts a mechanical forced pulsating vacuum air removal method. After 3-4 times of vacuuming and steam injection, the air in the inner room is forced to be emptied, so that the air removal volume reaches more than 99%, completely eliminating the cold spots in the sterilization room, and completely eliminating the temperature "dead corners". Under the action of high temperature and high pressure, the microbial protein is denatured, coagulated and inactivated, thereby achieving the purpose of sterilization.

[0003] Existing pulsating vacuum sterilizers are usually equipped with multiple rows of cross bars with gaps inside for placing medical devices during sterilization. However, the number of medical devices that need to be sterilized each time the sterilizer is used to sterilize medical devices is not fixed, and the specific number is affected by actual usage. In the sterilization process of the sterilizer, a fixed amount of high-temperature steam is alternately injected into the internal sterilization chamber within a set time, and the vacuum cycle method needs to maintain a sufficient disinfection time. The process is limited by the space in the sterilization chamber. When there are fewer medical devices, the steam volume cannot be reduced to ensure comprehensive sterilization of the devices. For this reason, we have proposed a pulsating vacuum steam sterilizer. Summary of the invention

[0004] The object of the present invention is to provide a pulsating vacuum steam sterilizer to solve the problems raised in the above background technology.

[0005] To achieve the above object, a pulsating vacuum steam sterilizer comprises: a sterilizer body, wherein a sterilization chamber is provided inside the sterilizer body;

[0006] A movable partition is laterally slidably connected to the interior of the sterilization chamber, and positioning grooves are provided on the inner wall of the sterilization chamber on both sides of the movable partition. Extension seats are provided on both sides of the movable partition to extend into the interior of the positioning grooves, and a positioning piece is inserted into the interior of the extension seat. A pull block is installed at one end of the positioning piece, and the movable end of the pull block passes through the extension seat and extends to the inner side of the sterilization chamber.

[0007] Furthermore, a placement component is provided on one side of the movable partition close to the opening of the sterilization chamber, and the placement component includes a telescopic mechanism and a pull rod, and the number of the telescopic mechanism and the pull rod is not less than two groups.

[0008] Furthermore, the telescopic mechanism includes an installation groove, a telescopic cylinder, a slide groove, a cross bar and a positioning block. A plurality of the installation grooves are vertically spaced on both sides of the outer wall of the positioning groove. A telescopic cylinder is inserted into the interior of the installation groove. A slide groove is provided on a side of the telescopic cylinder close to the inner side of the sterilization chamber. A cross bar is provided between the two slide grooves. Positioning blocks are provided at both ends of the cross bar. The positioning block is slidably connected to the inner side of the slide groove, and the cross bar is slidably connected to the outer side of the slide groove through the positioning block.

[0009] Furthermore, the pull rod includes a mounting seat, a screw, a guide cylinder and a screw disk. The two groups of mounting seats are respectively installed on the outer wall of the movable partition or slidably connected to the top of the telescopic cylinder. One end of the two mounting seats is respectively rotatably connected to the screw and the guide cylinder. One end of the guide cylinder is rotatably connected to the screw disk. One end of the screw extends into the interior of the guide cylinder, and the outer wall of the screw is threadedly connected to the inner wall of the screw disk.

[0010] Furthermore, an air extraction hole is provided at the top of the sterilization chamber, an electric lifting door is provided near the opening of the sterilization chamber, and a steam channel is provided at the bottom of the electric lifting door.

[0011] Furthermore, the upper end of the air suction hole is connected to an air suction machine, and the air suction hole is arranged inside the sterilization chamber near a side of the electric lifting door.

[0012] Furthermore, the height of the upper end of the steam channel is not lower than the height of the bottom of the inner wall of the sterilization chamber, and a corresponding steam delivery pipe is opened at the lower end of the steam channel inside the sterilizer body.

[0013] Furthermore, the width of the positioning groove is adapted to the width of the extension seat and the positioning member after combination, and the upper and lower surfaces of the positioning member are provided with serrated patterns.

[0014] Furthermore, the cross bar inside the telescopic cylinder is open in the direction toward the opening of the sterilization chamber.

[0015] Furthermore, the positioning block is approximately T-shaped.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In this solution, when the number of medical devices to be purified and sterilized is small, the positioning member is pulled out from the positioning groove and the extension seat by the pull block. At this time, the movable partition can slide inside the sterilization chamber, such as Figure 4 As shown, after the movement, the positioning piece is pushed back into the positioning groove by the pull block. Under the isolation of the movable partition, the flow area of ​​the steam inside the sterilization chamber is reduced, and only a small amount of steam is needed to completely fill the sterilization chamber, thereby reducing the demand for steam and the amount of gas suction during the purification process;

[0018] 2. In this solution, when the movable partition moves, the redundant crossbars and positioning blocks in the retracted telescopic cylinder can be taken out, and the positioning blocks on the inner side of the telescopic cylinder slide in the two sections of the positioning blocks through the slide grooves, and the crossbar provides support for medical devices when placed on the surface through the positioning blocks. Multiple installation grooves allow the telescopic cylinder to freely select the installation position. When medical devices of different sizes are placed on the surface of the crossbar, the installation spacing between multiple groups of telescopic cylinders can be adjusted, so that the space in the sterilization chamber can be used more flexibly;

[0019] 3. The upper end of the steam channel is higher than the bottom of the inner wall of the sterilization chamber. When the gas is transmitted, the steam can normally enter the bottom of the sterilization chamber and rise upward without being affected by the movement of the movable partition. A corresponding steam delivery pipe is opened at the lower end of the steam channel inside the sterilizer body. After the electric lifting door is raised to close the sterilization chamber, steam is normally input into the steam channel. When the electric lifting door is lowered, the misalignment of the bottom of the steam channel can ensure that high-temperature steam will not leak out, making the equipment safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic elevation diagram of a pulsating vacuum steam sterilizer of the present invention;

[0021] Figure 2 This is a schematic diagram of the front structure of a pulsating vacuum steam sterilizer of the present invention;

[0022] Figure 3 It is a schematic diagram of the side structure of a pulsating vacuum steam sterilizer of the present invention;

[0023] Figure 4 It is a schematic diagram of a movable partition in a pulsating vacuum steam sterilizer of the present invention after movement;

[0024] Figure 5 This is an enlarged schematic diagram of point A of a pulsating vacuum steam sterilizer of the present invention;

[0025] Figure 6 This is an enlarged schematic diagram of a pulsating vacuum steam sterilizer at B of the present invention;

[0026] Figure 7 The figure is a schematic diagram of the combination of an extension seat, a positioning member and a pull block in a pulsating vacuum steam sterilizer of the present invention.

[0027] In the figure:

[0028] Sterilizer body; 11. Sterilization chamber; 12. Air extraction hole; 13. Electric lifting door; 14. Steam channel; 2. Movable partition; 21. Extension seat; 22. Positioning groove; 23. Positioning piece; 24. Pull block; 3. Placement assembly; 31. Telescopic mechanism; 311. Mounting groove; 312. Telescopic cylinder; 313. Slide; 314. Cross bar; 315. Positioning block; 32. Pull rod; 321. Mounting seat; 322. Screw; 323. Guide cylinder; 324. Screw disk. Implementation

[0029] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0031] A pulsating vacuum steam sterilizer comprises: a sterilizer body 1, wherein a sterilization chamber 11 is arranged inside the sterilizer body 1;

[0032] The interior of the sterilization chamber 11 is laterally slidably connected with a movable partition 2, and the inner wall of the sterilization chamber 11 is provided with positioning grooves 22 on both sides of the movable partition 2, and extension seats 21 are provided on both sides of the movable partition 2 to extend into the interior of the positioning grooves 22, and a positioning piece 23 is inserted into the interior of the extension seat 21, and a pull block 24 is installed at one end of the positioning piece 23, and the movable end of the pull block 24 passes through the extension seat 21 and extends to the inner side of the sterilization chamber 11.

[0033] It is understandable that when the number of medical devices to be purified and sterilized is small, the positioning member 23 is pulled out from the positioning groove 22 and the extension seat 21 by the pull block 24, and the movable partition 2 can slide inside the sterilization chamber 11, such as Figure 4 As shown, after the movement, the positioning member 23 is pushed back into the positioning groove 22 by the pull block 24. Under the isolation of the movable partition 2, the flow area of ​​the steam inside the sterilization chamber 11 is reduced, and only a small amount of steam is needed to completely fill the sterilization chamber 11, thereby reducing the demand for steam and the amount of gas sucked during the purification process.

[0034] Specifically, a placement component 3 is provided on one side of the movable partition 2 near the opening of the sterilization chamber 11. The placement component 3 includes a telescopic mechanism 31 and a pull rod 32. The number of the telescopic mechanism 31 and the pull rod 32 is not less than two groups. The telescopic mechanism 31 is used to place medical equipment, and the pull rod 32 can pull up the telescopic mechanism 31 on its upper side to make the structure more stable.

[0035] Specifically, the telescopic mechanism 31 includes a mounting groove 311, a telescopic cylinder 312, a slide groove 313, a cross bar 314 and a positioning block 315. A plurality of mounting grooves 311 are vertically spaced on both sides of the outer wall of the positioning groove 22. The telescopic cylinder 312 is inserted into the mounting groove 311. A slide groove 313 is provided on a side of the telescopic cylinder 312 close to the inner side of the sterilization chamber 11. A cross bar 314 is provided between the two slide grooves 313. Positioning blocks 315 are provided at both ends of the cross bar 314. The positioning block 315 is slidably connected to the inner side of the slide groove 313. The cross bar 314 is slidably connected to the outer side of the slide groove 313 through the positioning block 315.

[0036] It can be understood that, on the inner side of the telescopic cylinder 312, the positioning block 315 slides in the two sections of the positioning block 315 through the slide groove 313, and the cross bar 314 provides support for it through the positioning block 315 when medical devices are placed on the surface. The multiple installation grooves 311 allow the telescopic cylinder 312 to freely choose the installation position. When medical devices of different sizes are placed on the surface of the cross bar 314, the installation spacing between multiple groups of telescopic cylinders 312 can be adjusted, so that the space in the sterilization chamber 11 can be used more flexibly.

[0037] Specifically, the pull rod 32 includes a mounting seat 321, a screw 322, a guide cylinder 323 and a screw disk 324. The two sets of mounting seats 321 are respectively installed on the outer wall of the movable partition 2 or slidably connected to the top of the telescopic cylinder 312. One end of the two mounting seats 321 is rotatably connected to the screw 322 and the guide cylinder 323 respectively, and one end of the guide cylinder 323 is rotatably connected to the screw disk 324. One end of the screw 322 extends into the interior of the guide cylinder 323, and the outer wall of the screw 322 is threadedly connected to the inner wall of the screw disk 324.

[0038] It can be understood that the pull rod 32 is used to pull up the telescopic mechanism 31 to stabilize the structure. When the telescopic mechanism 31 changes its installation height, the mounting seat 321 on the upper side of the telescopic cylinder 312 can simply adapt by sliding. If necessary, by rotating the screw disk 324 at the tail of the guide cylinder 323, the screw 322 can be adjusted so that the screw 322 extends out or extends into the inside of the guide cylinder 323, thereby changing the overall length of the screws 322 and 223, so that the pull rod 32 can provide stable support for the telescopic mechanism 31.

[0039] Specifically, an exhaust hole 12 is opened at the top of the sterilization chamber 11 for exhaust, and an electric lifting door 13 is arranged near the opening direction of the sterilization chamber 11 to close the sterilization chamber 11. A steam channel 14 is arranged at the bottom of the electric lifting door 13 to receive steam from the sterilizer body 1.

[0040] Among them, the upper end of the exhaust hole 12 is connected to a vacuum machine to vacuum the inside of the sterilization chamber 11. The exhaust hole 12 is arranged inside the sterilization chamber 11 close to the side of the electric lifting door 13, so that after the movable partition 2 moves, it will not affect the exhaust and vacuum inside the sterilization chamber 11.

[0041] Among them, Figure 6 As shown, the height of the upper end of the steam channel 14 is not lower than the height of the bottom of the inner wall of the sterilization chamber 11, so that when the gas is transmitted, the steam can normally enter the bottom of the sterilization chamber 11 and rise upward without being affected by the movement of the movable partition 2. A corresponding steam delivery pipe is opened at the lower end of the steam channel 14 inside the sterilizer body 1. After the electric lifting door 13 is raised to close the sterilization chamber 11, steam is normally input into the steam channel 14. When the electric lifting door 13 is lowered, the misalignment of the bottom of the steam channel 14 can ensure that high-temperature steam will not leak out, making the equipment safer.

[0042] Specifically, the width of the positioning groove 22 is adapted to the width of the combination of the extension seat 21 and the positioning piece 23, so that the combination of the extension seat 21 and the positioning piece 23 can completely close the positioning groove 22, and help form a sealed environment inside the sterilization chamber 11 after the electric lifting door 13 is raised. The upper and lower surfaces of the positioning piece 23 are provided with serrated patterns, which makes it difficult for the positioning piece 23 to move laterally in the positioning groove 22, and improves the air tightness, making the equipment structure more stable.

[0043] Specifically, the cross bar 314 inside the telescopic cylinder 312 is open in the direction toward the opening of the sterilization chamber 11, so that when the movable partition 2 moves, the redundant cross bar 314 and the positioning block 315 in the retracted telescopic cylinder 312 can be taken out.

[0044] It can be understood that the shape of the positioning block 315 is approximately T-shaped, and the protrusion in the middle of the positioning block 315 is connected to the cross bar 314. The other two sides can maintain the distance between the two groups of positioning blocks 315 when in contact with other positioning blocks 315 inside the slide groove 313. When medical devices are placed, it can ensure that there is enough space for steam to rise under the medical devices, thereby ensuring the disinfection and sterilization effect.

[0045] It should be noted that the number of telescopic cylinders 312 is not limited to two. It can be understood that the limited movement amount of the movable partition 2 has a larger movable space.

[0046] In this embodiment, when the medical device is normally disinfected and sterilized, the electric lifting door 13 is opened, and the medical device is placed on the surface of the cross bar 314 in the sterilization chamber 11, and then the electric lifting door 13 is closed. After the sterilization time is set, steam is generated from the sterilizer body 1 and flows into the bottom of the sterilization chamber 11 through the steam channel 14 at the bottom of the electric lifting door 13, and the medical device is sterilized at high temperature. In the subsequent process, as the vacuum pump or the exhaust fan is started, the gas in the sterilization chamber 11 is extracted from the sterilization chamber 11 through the exhaust hole 12. After multiple cycles, the air removal volume reaches more than 99%, completely eliminating the cold spots in the sterilization chamber, completely eliminating the temperature "dead corner", and denaturing, coagulating and inactivating the microbial protein under the action of high temperature and high pressure, thereby achieving the purpose of sterilization;

[0047] When the number of medical devices to be purified and sterilized is small, the positioning member 23 is pulled out from the positioning groove 22 and the extension seat 21 by the pull block 24, and the movable partition 2 can slide inside the sterilization chamber 11. Figure 4 As shown, after the movement, the positioning member 23 is pushed back into the positioning groove 22 by the pull block 24. Under the isolation of the movable partition 2, the flow area of ​​the steam inside the sterilization chamber 11 is reduced, and only a small amount of steam is needed to completely fill the sterilization chamber 11, thereby reducing the demand for steam and the amount of gas suction during the purification process;

[0048] In the placement component 3, in order to change the length of the telescopic cylinder 312 with the movement of the movable partition 2, when the movable partition 2 moves, the redundant cross bar 314 and the positioning block 315 in the retracted telescopic cylinder 312 can be taken out, and the positioning block 315 slides in the two sections of the positioning block 315 through the slide groove 313 on the inner side of the telescopic cylinder 312, and the cross bar 314 provides support for the positioning block 315 when medical equipment is placed on the surface thereof, and the multiple installation grooves 311 can allow the telescopic cylinder 312 to freely select the installation position, and when medical equipment of different sizes is placed on the surface of the cross bar 314, the installation spacing between multiple groups of telescopic cylinders 312 can be adjusted, so that the space in the sterilization chamber 11 can be used more flexibly;

[0049] It should be noted that, among the pull rods 32, the pull rods 32 are used to pull up the telescopic mechanism 31 to stabilize the structure. When the telescopic mechanism 31 changes its installation height, the mounting seat 321 on the upper side of the telescopic cylinder 312 can simply adapt by sliding. If necessary, by rotating the screw disk 324 at the tail of the guide cylinder 323, the screw 322 can be adjusted so that the screw 322 extends out or extends into the inside of the guide cylinder 323, thereby changing the overall length of the screws 322 and 223, so that the pull rod 32 can provide stable support for the telescopic mechanism 31.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 indirectly connected 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.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present invention.

Claims

1. A pulsating vacuum steam sterilizer, comprising: A sterilizer body (1), wherein a sterilization chamber (11) is provided inside the sterilizer body (1), characterized in that: The interior of the sterilization chamber (11) is laterally slidably connected with a movable partition (2), the inner wall of the sterilization chamber (11) is provided with positioning grooves (22) on both sides of the movable partition (2), and extension seats (21) are provided on both sides of the movable partition (2) to extend into the interior of the positioning grooves (22), and a positioning piece (23) is inserted into the interior of the extension seat (21), and a pull block (24) is installed at one end of the positioning piece (23), and the movable end of the pull block (24) passes through the extension seat (21) and extends toward the inner side of the sterilization chamber (11); A placement assembly (3) is provided on one side of the movable partition (2) close to the opening of the sterilization chamber (11), and the placement assembly (3) comprises a telescopic mechanism (31) and a pull rod (32), and the number of the telescopic mechanism (31) and the pull rod (32) is not less than two groups; The telescopic mechanism (31) comprises a mounting groove (311), a telescopic cylinder (312), a slide groove (313), a cross bar (314) and a positioning block (315); a plurality of the mounting grooves (311) are vertically spaced and distributed on both sides of the outer wall of the positioning groove (22); a telescopic cylinder (312) is inserted into the interior of the mounting groove (311); a slide groove (313) is provided on a side of the telescopic cylinder (312) close to the inner side of the sterilization chamber (11); a cross bar (314) is provided between two slide grooves (313); positioning blocks (315) are provided at both ends of the cross bar (314); the positioning block (315) is slidably connected to the inner side of the slide groove (313); and the cross bar (314) is slidably connected to the outer side of the slide groove (313) via the positioning block (315).

2. A pulsating vacuum steam sterilizer according to claim 1, characterized in that: The pull rod (32) comprises a mounting seat (321), a screw (322), a guide cylinder (323) and a screw disk (324); two groups of the mounting seats (321) are respectively mounted on the outer wall of the movable partition (2) or slidably connected to the top of the telescopic cylinder (312); one end of the two mounting seats (321) is rotatably connected to the screw (322) and the guide cylinder (323); one end of the guide cylinder (323) is rotatably connected to the screw disk (324); one end of the screw (322) extends into the interior of the guide cylinder (323); the outer wall of the screw (322) is threadedly connected to the inner wall of the screw disk (324).

3. A pulsating vacuum steam sterilizer according to claim 1, characterized in that: An air extraction hole (12) is provided at the top of the sterilization chamber (11), an electric lifting door (13) is provided near the opening of the sterilization chamber (11), and a steam channel (14) is provided at the bottom of the electric lifting door (13).

4. A pulsating vacuum steam sterilizer according to claim 3, characterized in that: The upper end of the air suction hole (12) is connected to an air suction machine, and the air suction hole (12) is arranged inside the sterilization chamber (11) near a side of the electric lifting door (13).

5. A pulsating vacuum steam sterilizer according to claim 4, characterized in that: The height of the upper end of the steam channel (14) is not lower than the height of the bottom of the inner wall of the sterilization chamber (11), and a corresponding steam delivery pipe is provided at the lower end of the steam channel (14) inside the sterilizer body (1).

6. The pulsating vacuum steam sterilizer according to claim 1, characterized in that: The width of the positioning groove (22) matches the width of the extension seat (21) and the positioning piece (23) after being combined, and the upper and lower surfaces of the positioning piece (23) are provided with sawtooth patterns.

7. The pulsating vacuum steam sterilizer according to claim 1, characterized in that: The cross bar (314) inside the telescopic cylinder (312) is open in the direction toward the opening of the sterilization chamber (11).

8. The pulsating vacuum steam sterilizer according to claim 1, characterized in that: The positioning block (315) is in a T-shape.

Images