CN113267302A - Sealing tester of sterilization box and testing method thereof - Google Patents
Sealing tester of sterilization box and testing method thereof Download PDFInfo
- Publication number
- CN113267302A CN113267302A CN202110770763.4A CN202110770763A CN113267302A CN 113267302 A CN113267302 A CN 113267302A CN 202110770763 A CN202110770763 A CN 202110770763A CN 113267302 A CN113267302 A CN 113267302A
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- sterilization box
- way valve
- switch
- vacuum pump
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/34—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by testing the possibility of maintaining the vacuum in containers, e.g. in can-testing machines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3281—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators removably mounted in a test cell
- G01M3/329—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators removably mounted in a test cell for verifying the internal pressure of closed containers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention relates to a sealing tester of a sterilization box and a testing method thereof, and the sealing tester comprises a body and a pressure plate, wherein a switching power supply, a vacuum pump, a pressure sensor, a solenoid valve, a relay, a three-way valve, a one-way valve, a quick connector, a two-way switch, a timer and a power switch are arranged in the body, one end of the quick connector extends out of the body and is connected with the pressure plate through a gas pipe, the other end of the quick connector is connected with the three-way valve through a gas pipe in the body, the three-way valve is respectively connected with the pressure sensor and the other three-way valve through gas pipes, the other two ends of the other three-way valve are respectively connected with the solenoid valve and the one-way valve through gas pipes, and the one-way valve is connected with the vacuum pump through a gas pipe. The sealing performance of the sterilization box was tested by vacuum pump suction. The invention has the beneficial effects that: 1. the sealing performance of the sterilization box can be accurately detected. 2. Is convenient for carrying and use. 3. The sealing test difficulty of the sterilization box is solved.
Description
Technical Field
The invention relates to the field of medical treatment, in particular to a sealing tester of a sterilization box and a method for testing the sealing degree of the sterilization box by using the sealing tester.
Background
Medical instruments are very hygienic and must be sterilized after use before they can be reused. During disinfection, medical instruments are placed in the loading basket in the disinfection box, the disinfection box cover is covered for disinfection treatment, the disinfection box is in a state of being isolated from bacteria on the premise that disinfection is required, the box cover is provided with a filtering area and a filtering net which can enter air but can not enter bacteria, the sealing performance between the box cover and the box body needs to be detected, and corresponding detection equipment is needed to detect the sealing performance.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at various defects and shortcomings of the prior art, the sealing tester of the sterilization box and the testing method thereof are provided.
The specific technical scheme of the invention is as follows: the utility model provides a sealed tester of sterilization box, including body and pressure disk, be equipped with switching power supply in the body, the vacuum pump, pressure sensor, the solenoid valve, the relay, the three-way valve, the check valve, quick-operation joint, two-way switch, time-recorder and switch, quick-operation joint one end extends to this external pressure disk of connecting through the trachea, the other end is at this internal three-way valve of connecting through the trachea, the three-way valve passes through the trachea and connects pressure sensor and another three-way valve respectively, solenoid valve and check valve are connected respectively through the trachea in all the other both ends of another three-way valve, the check valve passes through the trachea and connects the vacuum pump.
Further, the power switch is electrically connected with the switching power supply, the input end of the switching power supply is respectively and electrically connected with the vacuum pump and the pressure sensor, the vacuum pump is electrically connected with the relay, the relay is electrically connected with the pressure sensor, the relay and the pressure sensor are also electrically connected with the two-way switch together, the pressure sensor is electrically connected with the electromagnetic valve, the electromagnetic valve is electrically connected with the timer, the timer is electrically connected with the two-way switch, and the two-.
Furthermore, pressure sensor one end extends to outside this body, and the pressure sensor who is located the outside is equipped with and sets up button and display screen, conveniently sets up the pressure value and observes the pressure value.
Furthermore, timer one end extends to outside this body, and the timer that is located the outside is equipped with and sets up button and display screen, still is equipped with alarm device in the timer, and its warning suggestion lamp is located this is external, conveniently sets up check-out time, and check-out time is arrived, just can report to the police and flash light is reminded to whether the staff in time observes the sterilization box internal pressure normal.
Further, the pressure disk is the dome form, and quick-operation joint is equipped with at its top, and the gas circuit pipe is worn to the pressure disk inner chamber and is fixed by quick-operation joint, and the cover is equipped with at the bottom of the pressure disk, and the cover is soft materials such as rubber at the bottom of the pressure disk, and the cover is equipped with inner ring and outer loop at the bottom of the pressure disk, and the outer loop is good at inner ring and outer loop and leans out, and it is 3 ~ 8 degrees with the perpendicular line contained angle, and two pressure ring laminating degrees are higher, and the outer loop leans out the lid filtering area of adsorbing the sterilization box more easily.
A test method of a sterilization box sealing tester comprises the following steps:
1. the tester is connected with a power supply through a plug, a power switch is turned on, a pressure sensor and a timer are arranged, the body is connected with the pressure plate through an air pipe, and then the sealing performance of the internal structure of the body is tested through a sealing container so as to ensure that the tester can be normally used;
2. cleaning a box cover filtering area of a sterilization box to be tested;
3. the inner ring of the pressure plate is used for completely covering the filtering area of the sterilizing box, and then the pressure plate is lightly pressed to ensure that the edges of the outer ring and the inner ring are completely attached to the filtering area;
4. turning on a two-way switch to press an air suction gear, and starting a vacuum pump to pump out air in the sterilization box;
5. when the negative pressure in the sterilization box reaches the set pressure, the relay is disconnected, the vacuum pump stops working, the negative pressure value in the sterilization box can be observed through a display screen of the pressure sensor, meanwhile, the timer starts timing, if the negative pressure in the sterilization box is smaller than the set pressure, the relay is closed, the vacuum pump starts working, and the process is circulated;
6. in the set time, if the negative pressure of the sterilization box is always in the set pressure value range, the sterilization box is determined to be well sealed and meet the requirement, if the negative pressure of the sterilization box is lower than the lowest set pressure value, the box cover of the sterilization box and the sealing washer and the padlock tightness of the box body need to be tested, the reason of missing of sealing is confirmed, and the sterilization box is repaired and replaced according to the symptoms.
7. After the detection is finished, the two-way switch is pressed to an air release gear, the electromagnetic valve works, the air path releases air, after the air release is finished, the two-way switch is pressed to a closed gear, the vacuum pump is closed, the air exhaust state is relieved, the pressure plate is taken down, the power switch is closed, and the detection is finished.
The invention has the beneficial effects that: 1. the tester can accurately detect the sealing performance of the sterilization box, and ensures that each used sterilization box meets the sealing requirement. 2. The tester has small volume, is convenient to carry and use, and is not limited by the use position. 3. The tester has the advantages of simple structure, low manufacturing cost and convenient popularization, and solves the difficult problem of the sealing test of the sterilization box.
Drawings
FIG. 1: is a schematic diagram of the structure and the gas circuit of the invention.
FIG. 2: is a circuit schematic diagram of the present invention.
FIG. 3: is a schematic structural diagram of the main view section of the pressure plate.
Detailed Description
Embodiments of the present invention are described with reference to the accompanying drawings.
Example 1
The utility model provides a sealed tester of sterilization box, including body 1 and pressure disk 3, switch power supply 11 is equipped with in body 1, vacuum pump 12, pressure sensor 13, solenoid valve 14, relay 15, three-way valve 16, check valve 17, quick-operation joint 18, two-way switch 19, timer 20 and switch 21, quick-operation joint 18 one end extends to body 1 and connects pressure disk 3 through the trachea outward, the other end is at body 1 internal through trachea connection three-way valve 16, pressure sensor 13 and another three-way valve 16 are connected respectively to three-way valve 16 through the trachea, solenoid valve 14 and check valve 17 are connected respectively through the trachea at the remaining both ends of another three-way valve 16, check valve 17 passes through trachea connection vacuum pump 12.
The power switch 21 is electrically connected with the switch power supply 11, the input end of the switch power supply 11 is electrically connected with the vacuum pump 12 and the pressure sensor 13 respectively, the vacuum pump 12 is electrically connected with the relay 15, the relay 15 is electrically connected with the pressure sensor 13, the relay 15 and the pressure sensor 13 are also electrically connected with the two-way switch 19 together, the pressure sensor 13 is electrically connected with the electromagnetic valve 14, the electromagnetic valve 14 is electrically connected with the timer 20, the timer 20 is electrically connected with the two-way switch 19, and the two-way switch 19 is electrically connected with the output end of the switch power supply 11.
Outside time-recorder 20 one end extended to body 1, be located outside time-recorder 20 and be equipped with and set up button and display screen, still be equipped with alarm device in time-recorder 20, its warning light is located outside body 1, conveniently sets up check-out time, and check-out time arrives, just can report to the police and flash light is reminded to staff in time observes the sterilization box internal pressure and whether normal.
A test method of a sterilization box sealing tester comprises the following steps:
1. the tester is connected with a power supply by a plug, a power switch 21 is turned on, the pressure value of the pressure sensor 13 is set to be-0.5 Kpa to-10 Kpa, a timer 20 is set to be 10 minutes, the body 1 is connected with the pressure plate 3 by an air pipe, and then the sealing performance of the internal structure of the body 1 is tested by a sealing container so as to ensure that the tester can be normally used;
2. cleaning a single box cover filtering area of a type 1/2 or type 3/4 sterilization box to be tested;
3. the inner ring 41 of the pressure plate 3 is used for completely covering the filtering area of the sterilizing box, and then the pressure plate 3 is lightly pressed to ensure that the edges of the outer ring 42 and the inner ring 41 are completely attached to the filtering area;
4. turning on the two-way switch 19 and pressing the air suction gear, starting the vacuum pump 12 to pump out the air in the sterilization box;
5. when the negative pressure in the sterilization box reaches-10 Kpa, the relay 15 is disconnected, the vacuum pump 12 stops working, the negative pressure value in the sterilization box can be observed through the display screen of the pressure sensor 13, meanwhile, the timer 20 starts timing, if the negative pressure in the sterilization box is less than-0.5 Kpa, the relay 15 is attracted, the vacuum pump 12 starts working, and the process is circulated;
6. and in 10 minutes, if the negative pressure of the sterilization box is always in the range of-0.5 Kpa to-10 Kpa, the sterilization box is determined to be completely sealed and meet the requirement, and if the negative pressure of the sterilization box is lower than-0.5 Kpa, the tightness of a sealing washer and a buckle lock of a box cover and a box body of the sterilization box needs to be tested, the reason of the missing of the sealing is determined, and the sterilization box is repaired and replaced according to the symptoms.
7. After the detection is finished, the two-way switch 19 is pressed to an air release gear, the electromagnetic valve 14 works, the air path releases air, after the air release is finished, the two-way switch 19 is pressed to a closed gear, the vacuum pump 12 is closed, the air extraction state is released, the pressure plate is taken down, the power switch 21 is closed, and the detection is finished.
Example 2
The utility model provides a sealed tester of sterilization box, including body 1 and pressure disk 3, switch power supply 11 is equipped with in body 1, vacuum pump 12, pressure sensor 13, solenoid valve 14, relay 15, three-way valve 16, check valve 17, quick-operation joint 18, two-way switch 19, timer 20 and switch 21, quick-operation joint 18 one end extends to body 1 and connects pressure disk 3 through the trachea outward, the other end is at body 1 internal through trachea connection three-way valve 16, pressure sensor 13 and another three-way valve 16 are connected respectively to three-way valve 16 through the trachea, solenoid valve 14 and check valve 17 are connected respectively through the trachea at the remaining both ends of another three-way valve 16, check valve 17 passes through trachea connection vacuum pump 12.
The power switch 21 is electrically connected with the switch power supply 11, the input end of the switch power supply 11 is electrically connected with the vacuum pump 12 and the pressure sensor 13 respectively, the vacuum pump 12 is electrically connected with the relay 15, the relay 15 is electrically connected with the pressure sensor 13, the relay 15 and the pressure sensor 13 are also electrically connected with the two-way switch 19 together, the pressure sensor 13 is electrically connected with the electromagnetic valve 14, the electromagnetic valve 14 is electrically connected with the timer 20, the timer 20 is electrically connected with the two-way switch 19, and the two-way switch 19 is electrically connected with the output end of the switch power supply 11.
Outside time-recorder 20 one end extended to body 1, be located outside time-recorder 20 and be equipped with and set up button and display screen, still be equipped with alarm device in time-recorder 20, its warning light is located outside body 1, conveniently sets up check-out time, and check-out time arrives, just can report to the police and flash light is reminded to staff in time observes the sterilization box internal pressure and whether normal.
A test method of a sterilization box sealing tester comprises the following steps:
1. the tester is connected with a power supply by a plug, a power switch 21 is turned on, the pressure value of the pressure sensor 13 is set to be-0.5 Kpa to-10 Kpa, a timer 20 is set to be 10 minutes, the body 1 is connected with the pressure plate 3 by an air pipe, and then the sealing performance of the internal structure of the body 1 is tested by a sealing container so as to ensure that the tester can be normally used;
2. cleaning two box cover filtering areas of an 1/1 type sterilization box to be tested;
3. an inner ring 41 of the pressure plate 3 is used for completely covering one filtering area of the sterilizing box, the inner ring 41 of the auxiliary pressure plate with the integrally sealed top is used for completely covering the other filtering area of the sterilizing box, then the two pressure plates are lightly pressed to ensure that the edges of the outer ring 42 and the inner ring 41 are completely attached to the filtering areas, and the filtering areas covered by the auxiliary pressure plates form a sealed state;
4. turning on the two-way switch 19 and pressing the air suction gear, starting the vacuum pump 12 to pump out the air in the sterilization box;
5. when the negative pressure in the sterilization box reaches-10 Kpa, the relay 15 is disconnected, the vacuum pump 12 stops working, the negative pressure value in the sterilization box can be observed through the display screen of the pressure sensor 13, meanwhile, the timer 20 starts timing, if the negative pressure in the sterilization box is less than-0.5 Kpa, the relay 15 is attracted, the vacuum pump 12 starts working, and the process is circulated;
6. and in 10 minutes, if the negative pressure of the sterilization box is always in the range of-0.5 Kpa to-10 Kpa, the sterilization box is determined to be completely sealed and meet the requirement, and if the negative pressure of the sterilization box is lower than-0.5 Kpa, the tightness of a sealing washer and a buckle lock of a box cover and a box body of the sterilization box needs to be tested, the reason of the missing of the sealing is determined, and the sterilization box is repaired and replaced according to the symptoms.
7. After the detection is finished, the two-way switch is pressed to an air release gear, the electromagnetic valve works, the air path releases air, after the air release is finished, the two-way switch is pressed to a closed gear, the vacuum pump is closed, the air exhaust state is relieved, the pressure plate is taken down, the power switch is closed, and the detection is finished.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a sealed tester of sterilization box which characterized in that: comprises a body (1) and a pressure plate (3), wherein a switch power supply (11), a vacuum pump (12), a pressure sensor (13), an electromagnetic valve (14), a relay (15), a three-way valve (16), a one-way valve (17), a quick joint (18), a two-way switch (19), a timer (20) and a power switch (21) are arranged in the body (1), one end of the quick joint (18) extends out of the body (1) and is connected with the pressure plate (3) through an air pipe, the other end of the quick joint is connected with the three-way valve (16) in the body (1) through an air pipe, the three-way valve (16) is respectively connected with the pressure sensor (13) and the other three-way valve (16) through an air pipe, the other two ends of the other three-way valve (16) are respectively connected with an electromagnetic valve (14) and a one-way valve (17) through air pipes, and the one-way valve (17) is connected with a vacuum pump (12) through an air pipe.
2. A sterility case seal tester as recited in claim 1, wherein: switch (21) electricity connect switching power supply (11), switching power supply (11) input connect vacuum pump (12) and pressure sensor (13) respectively, vacuum pump (12) electricity connect relay (15), relay (15) electricity connect pressure sensor (13), relay (15) and pressure sensor (13) still connect bilateral switch (19) jointly electricity, pressure sensor (13) electricity connect solenoid valve (14), solenoid valve (14) electricity connect time-recorder (20), time-recorder (20) electricity connect bilateral switch (19), bilateral switch (19) electricity connect switching power supply (11) output.
3. A sealing tester of a sterilization case according to claim 2, characterized in that: one end of the pressure sensor (13) extends out of the body (1), and the pressure sensor (13) positioned outside is provided with a setting button and a display screen.
4. A sealing tester of a sterilization case according to claim 2, characterized in that: one end of the timer (20) extends out of the body (1), the timer (20) positioned outside is provided with a setting button and a display screen, the timer (20) is internally provided with an alarm device, and an alarm prompt lamp of the alarm device is positioned outside the body (1).
5. A sterility case seal tester as recited in claim 1, wherein: pressure disk (3) be the round cover form, quick-operation joint (18) are equipped with at its top, the gas circuit pipe is worn to pressure disk (3) inner chamber and is fixed by quick-operation joint (18), pressure disk (3) bottom cover be equipped with at the bottom of the pressure disk cover (4), pressure disk at the bottom of cover (4) be equipped with inner ring (41) and outer loop (42), outer loop (42) be good at inner ring (41) and outer loop (42) and lean out, it is 3 ~ 8 degrees with the plumb line contained angle.
6. A method of testing a sterilization case seal tester using any one of claims 1 to 5, comprising the steps of:
1) the tester is connected with a power supply through a plug, a power switch (21) is turned on, a pressure sensor (13) and a timer (20) are arranged, the body (1) is connected with the pressure plate (3) through an air pipe, and then the sealing performance of the internal structure of the body (1) is tested through a sealing container so as to ensure that the tester can be normally used;
2) cleaning a box cover filtering area of a sterilization box to be tested;
3) the filtering area of the sterilizing box is completely covered by an inner ring (41) of the pressure plate (3), and then the pressure plate (3) is lightly pressed to ensure that the edges of the outer ring (42) and the inner ring (41) are completely attached to the filtering area;
4) turning on the two-way switch to press the air suction gear, starting the vacuum pump (12) to pump out air in the sterilization box;
5) when the negative pressure in the sterilization box reaches the set pressure, the relay is disconnected, the vacuum pump (12) stops working, the negative pressure value in the sterilization box can be observed through a display screen of the pressure sensor (13), meanwhile, the timer (20) starts timing, if the negative pressure in the sterilization box is smaller than the set pressure, the relay is closed, the vacuum pump starts working, and the process is circulated;
6) if the negative pressure of the sterilization box is lower than the lowest set pressure value, the tightness of a box cover of the sterilization box and a sealing washer and a buckle lock of the box body need to be tested, the reason of missing of sealing is confirmed, and maintenance and replacement are carried out according to the symptoms;
7) after the detection is finished, the two-way switch is pressed to an air release gear, the electromagnetic valve works, the air path releases air, after the air release is finished, the two-way switch is pressed to a closed gear, the vacuum pump is closed, the air exhaust state is relieved, the pressure plate is taken down, the power switch is closed, and the detection is finished.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110770763.4A CN113267302B (en) | 2021-07-08 | 2021-07-08 | Sealing tester of sterilization box and testing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110770763.4A CN113267302B (en) | 2021-07-08 | 2021-07-08 | Sealing tester of sterilization box and testing method thereof |
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| CN113267302A true CN113267302A (en) | 2021-08-17 |
| CN113267302B CN113267302B (en) | 2022-08-26 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6267418A (en) * | 1985-09-20 | 1987-03-27 | Chiyoda Seisakusho:Kk | Method for inspecting leakage of gas sterilizer |
| US6105435A (en) * | 1997-10-24 | 2000-08-22 | Cypress Semiconductor Corp. | Circuit and apparatus for verifying a chamber seal, and method of depositing a material onto a substrate using the same |
| CN203037423U (en) * | 2012-10-31 | 2013-07-03 | 上海航天精密机械研究所 | Air tightness detection device for positive-pressure containers |
| CN203479473U (en) * | 2013-09-12 | 2014-03-12 | 北京垠海工程技术研究有限责任公司 | Positive pressure tester |
| CN206496877U (en) * | 2017-03-02 | 2017-09-15 | 艾迪康科技（苏州）有限公司 | automatic vacuum test device |
| CN211927208U (en) * | 2020-04-08 | 2020-11-13 | 山东新华健康产业有限公司 | Be applied to portable verification equipment of aseptic barrier function of sterilization box |
-
2021
- 2021-07-08 CN CN202110770763.4A patent/CN113267302B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6267418A (en) * | 1985-09-20 | 1987-03-27 | Chiyoda Seisakusho:Kk | Method for inspecting leakage of gas sterilizer |
| US6105435A (en) * | 1997-10-24 | 2000-08-22 | Cypress Semiconductor Corp. | Circuit and apparatus for verifying a chamber seal, and method of depositing a material onto a substrate using the same |
| CN203037423U (en) * | 2012-10-31 | 2013-07-03 | 上海航天精密机械研究所 | Air tightness detection device for positive-pressure containers |
| CN203479473U (en) * | 2013-09-12 | 2014-03-12 | 北京垠海工程技术研究有限责任公司 | Positive pressure tester |
| CN206496877U (en) * | 2017-03-02 | 2017-09-15 | 艾迪康科技（苏州）有限公司 | automatic vacuum test device |
| CN211927208U (en) * | 2020-04-08 | 2020-11-13 | 山东新华健康产业有限公司 | Be applied to portable verification equipment of aseptic barrier function of sterilization box |
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| CN113267302B (en) | 2022-08-26 |
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