Small pulsating vacuum sterilizer

Abstract

The utility model relates to a small -size pulsation vacuum sterilizer relates to sterilization equipment technical field, including sterilizer, the left side of sterilizer rear end is provided with control information panel, the right side of sterilizer rear end is provided with electric suction door, the top of sterilizer is provided with pressure -relief valve, through multistage pressure -relief design in pressure -relief valve inside, can avoid the instantaneous impact of fixed air pressure output quantity, through multistage pressure -relief will be released in the process of airflow disassembled into multiple stages, reduce the impact of airflow to the inside of machine body degree, and can guide the baffle and the flow port and guide the internal air pressure from the side and guide discharge, prevent high -speed airflow and lift the inside sterilization small -size fragile instrument and cause damage, shock absorbing rubber pad can further weaken the vibration produced in the air pressure output process, avoid small -size fragile instrument and displace, collide because of equipment vibration, reduce instrument loss, reduce the replacement cost of medical institutions to small -size medical instrument.

Description

Technical Field

[0001] This utility model relates to the field of sterilization equipment technology, and in particular to a small pulsed vacuum sterilizer. Background Technology

[0002] With a clear global trend of population aging, the demand for medical services continues to grow. At the same time, the public's health awareness is increasing, and they are paying more attention to the quality of medical services and the safety of medical devices. Medical institutions need more efficient and safe sterilization equipment to ensure the sterility of medical devices.

[0003] A pulsed vacuum sterilizer is a device that uses saturated steam for moist heat sterilization. Using saturated steam as the sterilization medium, it alternates between vacuuming and steam injection 3 to 4 times to forcibly evacuate the air from the sterilization chamber, achieving an air removal rate of up to 99%. This eliminates cold spots within the sterilization chamber and completely eliminates temperature "dead zones." Under high temperature and high pressure, the proteins of microorganisms denature and coagulate, thus inactivating them and achieving sterilization.

[0004] Small-scale pulsed vacuum sterilizers are suitable for small-batch sterilization needs, avoiding resource waste and meeting the installation requirements of space-constrained scenarios. Existing small-scale pulsed vacuum sterilizers are mainly used for sterilizing small medical devices such as microcentrifuge tubes and narrow-diameter glass tubes. The final step in sterilization typically involves injecting steam and then opening the pressure relief valve. This not only releases internal steam but also balances the internal and external air pressure. However, the vibration generated by the fixed air pressure output power during the pressure balancing process can easily cause damage to small and fragile instruments, increasing instrument wear and tear. Utility Model Content

[0005] This invention addresses the technical problems existing in the prior art by providing a small pulsed vacuum sterilizer.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] The device includes a sterilizer, a control information panel located on the left rear end of the sterilizer, an electric suction door located on the right rear end of the sterilizer, a pressure relief valve located at the top of the sterilizer, and a machine body. An inverted U-shaped guide plate is fixedly connected to the inner wall of the machine body. An arc-shaped guide groove is formed at one end of the guide plate near the inner wall of the machine body. Several linearly arrayed shock-absorbing pads are fixedly connected to the vertical guide grooves. Several guide ports are formed vertically through the guide plate, with one end of each guide port near the center of the inner side of the machine body tilting downwards. A pressure relief hole is located at the center of the top of the machine body.

[0008] The beneficial effects of this utility model are as follows: The multi-stage pressure relief design inside the pressure relief valve can avoid the instantaneous impact caused by the fixed air pressure output power. By decomposing the airflow release process into multiple stages through multi-stage pressure relief, the impact force of the airflow on the inside of the machine body is reduced, and the risk of collision damage caused by the direct impact of high-pressure airflow on small and fragile instruments is reduced. In addition, the internal air pressure can be guided out from the side through the guide plate and guide port to prevent the high-speed airflow from pushing up the small and fragile instruments being sterilized inside and causing damage. The shock-absorbing rubber pad can further weaken the vibration generated during the air pressure output process, prevent small and fragile instruments from being displaced or collided due to equipment vibration, reduce instrument wear, and reduce the replacement cost of small medical instruments for medical institutions.

[0009] Furthermore, the pressure relief valve includes a valve pipe fixedly connected to the middle of the top of the machine body. The valve pipe communicates with the inside of the machine body through a pressure relief hole. A pressure relief pipe communicating with the inside is fixedly connected to the lower front end of the valve pipe. An adjusting head is threadedly connected to the upper side of the outer surface of the valve pipe. An adjusting knob is fixedly connected to the top of the adjusting head.

[0010] Furthermore, a multi-stage damping column is fixedly connected to the middle of the inner top of the adjusting head. A secondary pressure spring with its top fixedly connected to the inner top of the adjusting head is sleeved on the outer surface of the multi-stage damping column. The secondary pressure spring and the bottom of the multi-stage damping column are jointly fixedly connected to a multi-stage valve core. The multi-stage valve core is slidably connected to the inner side of the valve tube. A main pressure spring with its top fixedly connected to the outer side of the top of the multi-stage valve core is fixedly connected to the outer side of the inner top of the adjusting head. Rotating the adjusting knob can change the position of the adjusting head on the valve tube, thereby adjusting the force state of the multi-stage damping column, the secondary pressure spring and the main pressure spring, and realizing the preload adjustment.

[0011] Furthermore, the airflow inside the machine body can only enter the valve tube through the guide port and the guide arc groove. The guide port on the side allows the airflow to enter the guide arc groove laterally, preventing the rising airflow from lifting lighter small instruments, thereby reducing damage to the instruments.

[0012] Furthermore, the multi-stage valve core includes a secondary valve cylinder fixedly connected to the bottom end of the multi-stage damping column and the secondary pressure spring. The secondary valve cylinder has a triangular pressure relief port through it. A limit ring is fixedly connected to the outer side of the bottom end of the secondary valve cylinder. The triangular pressure relief port can adjust the cross-sectional area through which the airflow passes when the secondary valve cylinder moves, so as to realize the graded control of the pressure relief rate.

[0013] Furthermore, a main valve core is sleeved on the outer surface of the limiting ring. The top end of the main valve core is fixedly connected to the bottom end of the main pressure spring, and the outer surface of the main valve core is slidably connected to the inner side of the valve tube. This can balance the pressure when the airflow pressure is too high, further optimize the stability of the pressure relief process, and prevent vibration caused by sudden changes in air pressure.

[0014] Furthermore, the shock-absorbing pad includes a pad body fixedly connected to the inner side of the flow guide arc groove. Two damping blocks embedded inside the flow guide plate are fixedly connected to the side of the pad body near the flow guide plate. Two shock-absorbing springs are embedded in the damping blocks. The pad body can directly absorb the energy generated by airflow impact and equipment vibration, reduce the transmission of vibration to the flow guide plate and the inside of the machine body, form a multi-stage shock absorption system, reduce the impact of vibration on small medical devices inside the machine body, and avoid device damage. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the present invention;

[0016] Figure 2 This is an internal sectional view of the sterilizer of this utility model;

[0017] Figure 3 This is a cross-sectional view of the pressure relief valve structure of this utility model;

[0018] Figure 4 This is a cross-sectional view of the multi-stage valve core structure of this utility model;

[0019] Figure 5 This is a cross-sectional view of the assembly of the shock-absorbing rubber pad of this utility model.

[0020] Legend: 1. Pressure relief valve; 11. Adjusting head; 12. Main pressure spring; 13. Multi-stage damping column; 14. Secondary pressure spring; 15. Multi-stage valve core; 151. Secondary valve cylinder; 152. Pressure relief port; 153. Limiting ring; 154. Main valve core; 16. Valve pipe; 17. Pressure relief pipe; 2. Sterilizer; 21. Machine body; 22. Guide plate; 23. Guide port; 24. Shock-absorbing rubber pad; 241. Rubber pad body; 242. Damping block; 243. Shock-absorbing spring; 25. Guide arc groove; 3. Control information panel; 4. Electric suction door. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0024] In the description of this application, spatial relation terms such as “below,” “under,” “below,” “below,” “above,” “over,” etc., are used herein to describe the relationship between an element or feature shown in the figures and other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figures is flipped, an element or feature described as “below,” “under,” or “below” will be oriented “over” the other element or feature. Therefore, the exemplary terms “below” and “under” can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein are interpreted accordingly.

[0025] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0026] Example 1

[0027] Figure 1 This is a structural diagram of a small pulsed vacuum sterilizer provided for an embodiment of the present invention. Figure 1 The device includes a sterilizer 2, a control information panel 3 located on the left rear end of the sterilizer 2, an electric suction door 4 located on the right rear end of the sterilizer 2, and a pressure relief valve 1 located at the top of the sterilizer 2.

[0028] With sterilizer 2 as the main body, before sterilization, the operator can set sterilization parameters through the control information panel 3 on the left side of the rear end of sterilizer 2. Then, the instruments to be sterilized are placed inside sterilizer 2, and the electric suction door 4 on the right side of the rear end is closed to ensure that the sterilization space is sealed. When the sterilization process enters the final stage and pressure needs to be released, the pressure relief valve 1 will be activated to release the internal steam and balance the internal and external air pressure, in preparation for the subsequent removal of instruments.

[0029] Figure 2 This is a cross-sectional view of the internal structure of the sterilizer of this utility model. Figure 2 As shown, the sterilizer 2 includes a machine body 21. An inverted U-shaped guide plate 22 is fixedly connected to the inner wall of the machine body 21. An arc-shaped guide groove 25 is opened at one end of the guide plate 22 near the inner wall of the machine body 21. Several linear array shock-absorbing pads 24 are fixedly connected to the vertical guide groove 25. Several guide ports 23 are opened vertically through the left and right sides of the guide plate 22. The ends of the several guide ports 23 near the middle of the inner side of the machine body 21 are inclined downward. A pressure relief hole is opened at the middle of the top of the machine body 21.

[0030] The main body 21 is the core space for sterilization operations. The inverted U-shaped baffle 22 provides a directional guidance channel for airflow. During the depressurization stage after sterilization, the airflow inside the main body 21 needs to move along a specific path. The baffle 23, which is inclined downward at the end near the middle of the inner side of the main body 21, can provide initial buffering and guidance for the airflow. Then the airflow enters the arc-shaped baffle groove 25. The shock-absorbing pad 24 will build a shock-absorbing foundation in advance during the airflow and subsequent depressurization process, reducing the impact of vibration on the instruments inside the main body 21. Finally, the airflow will enter the subsequent depressurization structure through the depressurization hole at the middle of the top of the main body 21.

[0031] Figure 3 This is a cross-sectional view of the pressure relief valve structure of this utility model. Figure 3 As shown, the pressure relief valve 1 includes a valve pipe 16 fixedly connected to the middle of the top of the machine body 21. The valve pipe 16 communicates with the inside of the machine body 21 through a pressure relief hole. A pressure relief pipe 17 with internal communication is fixedly connected to the lower front end of the valve pipe 16. An adjusting head 11 is threadedly connected to the upper side of the outer surface of the valve pipe 16. An adjusting knob is fixedly connected to the top of the adjusting head 11. A multi-stage damping column 13 is fixedly connected to the middle of the top of the inner side of the adjusting head 11. A secondary pressure spring 14 with its top fixedly connected to the top of the inner side of the adjusting head 11 is sleeved on the outer surface of the multi-stage damping column 13. A multi-stage valve core 15 is fixedly connected to the bottom end of the secondary pressure spring 14 and the multi-stage damping column 13. The multi-stage valve core 15 is slidably connected to the inner side of the valve pipe 16. A main pressure spring 12 with its top fixedly connected to the outer side of the top of the adjusting head 11 is fixedly connected to the outer side of the top of the multi-stage valve core 15.

[0032] When the airflow enters the pressure relief valve 1 through the pressure relief hole, it first enters the valve pipe 16. The pressure relief pipe 17 serves as the final exhaust channel. During the pressure relief process, the adjusting head 11 can be operated by means of its threaded connection with the upper side of the outer surface of the valve pipe 16, in conjunction with the adjusting knob at the top. Rotating the adjusting knob can change the position of the adjusting head 11 on the valve pipe 16, thereby adjusting the force state of the multi-stage damping column 13, the secondary pressure spring 14 and the main pressure spring 12, and adjusting the preload. The multi-stage valve core 15 can achieve preliminary control of the pressure relief process according to the change of airflow pressure.

[0033] The airflow inside the machine body 21 can only enter the valve tube 16 through the guide port 23 and the guide arc groove 25.

[0034] The airflow inside the machine body 21 is strictly confined to a single flow path, passing only through the guide port 23 and guide arc groove 25 of the guide plate 22 in sequence, and then entering the valve pipe 16 through the pressure relief hole. This single-path design can avoid sudden rises and falls in local air pressure caused by disordered airflow, reduce the additional vibration caused by airflow turbulence, and at the same time, the side guide port 23 allows the airflow to enter the guide arc groove 25 laterally, preventing the rising airflow from lifting lighter small instruments, thereby reducing damage to the instruments.

[0035] Example 2

[0036] Based on Embodiment 1, the present invention can be further improved as follows: Figure 4 This is a cross-sectional view of the multi-stage valve core structure of this utility model. Figure 4 As shown, the multi-stage valve core 15 includes a secondary valve cylinder 151 fixedly connected to the bottom end of the multi-stage damping column 13 and the secondary pressure spring 14. The secondary valve cylinder 151 has a triangular pressure relief port 152 through it. A limit ring 153 is fixedly connected to the outer side of the bottom end of the secondary valve cylinder 151. A main valve core 154 is sleeved on the outer surface of the limit ring 153. The top end of the main valve core 154 is fixedly connected to the bottom end of the main pressure spring 12. The outer surface of the main valve core 154 is slidably connected to the inner side of the valve tube 16.

[0037] The secondary valve cylinder 151 moves up and down as the airflow pressure changes. The triangular pressure relief port 152 can adjust the cross-sectional area through which the airflow passes when the secondary valve cylinder 151 moves, thereby achieving graded control of the pressure relief rate. The top of the main valve core 154 is fixed to the bottom of the main pressure spring 12, which can balance the pressure when the airflow pressure is too high, further optimizing the stability of the pressure relief process and preventing vibration caused by sudden changes in air pressure.

[0038] Figure 5 This is a cross-sectional view of the assembled shock-absorbing rubber pad of this utility model. Figure 5As shown, the shock-absorbing pad 24 includes a pad body 241 fixedly connected to the inner side of the guide arc groove 25. Two damping blocks 242 embedded inside the guide plate 22 are fixedly connected to the side of the pad body 241 near the guide plate 22. Two shock-absorbing springs 243 are embedded in the damping blocks 242.

[0039] When airflow passes through the guide arc groove 25 and subsequently causes vibration, the rubber pad body 241 can directly absorb the energy generated by the airflow impact and equipment vibration, reducing the transmission of vibration to the guide plate 22 and the machine body 21. At the same time, the two damping blocks 242 can further enhance the suppression effect on high-frequency vibration, and the two shock-absorbing springs 243 in each damping block 242 can buffer the vibration impact force through their own elastic deformation, forming a multi-level shock absorption system to reduce the impact of vibration on small medical devices inside the machine body 21 and avoid device damage.

[0040] While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the above embodiments are merely exemplary embodiments or examples, and the scope of this utility model is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as the technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.

Claims

1. A small pulsed vacuum sterilizer, characterized in that, include: Sterilizer (2), with an operation information panel (3) on the left side of the rear end of the sterilizer (2), an electric suction door (4) on the right side of the rear end of the sterilizer (2), and a pressure relief valve (1) on the top of the sterilizer (2). The sterilizer (2) includes a machine body (21). An inverted U-shaped guide plate (22) is fixedly connected to the inner wall of the machine body (21). An arc-shaped guide groove (25) is opened at one end of the guide plate (22) near the inner wall of the machine body (21). Several linear array shock-absorbing pads (24) are fixedly connected to the vertical guide groove (25). Several guide ports (23) are opened vertically through the left and right sides of the guide plate (22). The ends of the several guide ports (23) near the middle of the inner side of the machine body (21) are inclined downward. A pressure relief hole is opened at the middle of the top of the machine body (21).

2. The small pulsed vacuum sterilizer according to claim 1, characterized in that, The pressure relief valve (1) includes a valve pipe (16) fixedly connected to the middle of the top of the machine body (21). The valve pipe (16) communicates with the inside of the machine body (21) through a pressure relief hole. The bottom end of the valve pipe (16) is fixedly connected to a pressure relief pipe (17) that communicates with the inside. The upper end of the valve pipe (16) is threadedly connected to an adjusting head (11). The top end of the adjusting head (11) is fixedly connected to an adjusting knob.

3. A small pulsed vacuum sterilizer according to claim 2, characterized in that, The middle of the inner top of the adjusting head (11) is fixedly connected to a multi-stage damping column (13). A secondary pressure spring (14) with its top fixedly connected to the inner top of the adjusting head (11) is sleeved on the outer surface of the multi-stage damping column (13). A multi-stage valve core (15) is fixedly connected to the bottom of the multi-stage damping column (13). The multi-stage valve core (15) is slidably connected to the inner side of the valve tube (16). A main pressure spring (12) with its top fixedly connected to the outer side of the inner top of the adjusting head (11) is fixedly connected to the outer side of the top of the multi-stage valve core (15).

4. A small pulsed vacuum sterilizer according to claim 3, characterized in that, The airflow inside the machine body (21) can only enter the valve tube (16) through the guide port (23) and the guide arc groove (25).

5. A small pulsed vacuum sterilizer according to claim 3, characterized in that, The multi-stage valve core (15) includes a secondary valve cylinder (151) fixedly connected to the bottom end of the multi-stage damping column (13) and the secondary pressure spring (14). The secondary valve cylinder (151) has a triangular pressure relief port (152) through it. A limit ring (153) is fixedly connected to the outer side of the bottom end of the secondary valve cylinder (151).

6. A small pulsed vacuum sterilizer according to claim 5, characterized in that, The outer surface of the limiting ring (153) is fitted with a main valve core (154), the top end of the main valve core (154) is fixedly connected to the bottom end of the main pressure spring (12), and the outer surface of the main valve core (154) is slidably connected to the inner side of the valve tube (16).

7. A small pulsed vacuum sterilizer according to claim 1, characterized in that, The shock-absorbing rubber pad (24) includes a rubber pad body (241) fixedly connected to the inner side of the flow guide arc groove (25). Two damping blocks (242) embedded inside the flow guide plate (22) are fixedly connected to the side of the rubber pad body (241) near the flow guide plate (22). Two shock-absorbing springs (243) are embedded in the damping blocks (242).

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