Gas leakage detection system for endoscope

Abstract

A gas leakage detection system for an endoscope belongs to the technical field of endoscope leakage detection and comprises a gas supply module and a gas utilization module, the gas supply module comprises a safety gas cavity, the gas utilization module comprises a gas utilization cavity, the safety gas cavity is respectively connected with a gas pump, a safety valve and a pressure retaining valve, the safety gas cavity is communicated with the gas utilization cavity through the pressure retaining valve, and a one-way valve is arranged between the pressure retaining valve and the gas utilization cavity. The gas using cavity is respectively connected with the pressure release valve, the endoscope and the pressure sensor, and the one-way valve is mechanically sealed, so that the gas pressure stability at the gas using module does not completely depend on the singleness of closed gas of the pressure retaining valve any more, the gas pressure stability of the whole gas path system is effectively improved, and the one-way valve is low in cost, simple in structure and convenient to use. And the overall volume of the system and the production and use cost are not increased too much.

Description

Technical Field

[0001] This utility model relates to the field of endoscopic leak detection technology, and in particular to an endoscopic leak detection air circuit system. Background Technology

[0002] After use, endoscopes need to be cleaned, disinfected, and leak-tested. Leak testing generally uses gas as the detection medium. During the use of gas, it is important to ensure the stability of the gas pressure to avoid damaging the endoscope, and to maximize operability so as to switch and control the gas pressure inside the endoscope.

[0003] A new air circuit system for endoscopic leak detection equipment (publication number CN217155713U) has emerged, which adopts a dual-module configuration. The air supply module can generate a stable airflow, and the air consumption module is connected to the air supply module through a pressure-holding valve. When the air consumption module reaches the set pressure, the air supply module stops supplying air. Through the setting of the pressure-holding valve, the stability of the air pressure in the air supply system and the reliability of the entire system operation process can be guaranteed.

[0004] The existing air circuit system of endoscopic leak detection equipment relies on the uniformity of the gas at the air supply module to ensure stable air pressure. This pressure-holding valve is an electromagnetically controlled component, and impurities carried by the airflow can affect its sealing performance, thus compromising the uniformity of the gas and affecting the stability of the air pressure at the air supply module during leak detection. Furthermore, the air supply module is connected to a pressure relief module, which releases pressure through a single pressure relief valve. This valve is susceptible to leakage due to the influence of small particles, further compromising the uniformity of the gas in the pressure relief module and affecting the stability of the air pressure at the air supply module during leak detection. Utility Model Content

[0005] To address the technical problem in the existing gas circuit system of endoscopic leak detection equipment mentioned above, where the stability of the gas pressure at the gas module depends on the single gas supply of the pressure-holding valve, this utility model provides an endoscope leak detection gas circuit system.

[0006] The technical solution of this utility model is as follows:

[0007] This utility model provides an endoscope leak detection air circuit system, including: an air supply module and an air consumption module. The air supply module contains a safety air chamber, and the air consumption module contains a consumption air chamber. The safety air chamber is connected to an air pump, a safety valve, and a pressure holding valve, respectively. The safety air chamber is connected to the consumption air chamber through the pressure holding valve. A one-way valve is provided between the pressure holding valve and the consumption air chamber. The consumption air chamber is connected to a pressure relief valve, an endoscope, and a pressure sensor, respectively. The one-way valve, through mechanical sealing, makes the air pressure stability at the consumption air module no longer completely dependent on the single gas of the pressure holding valve, effectively improving the air pressure stability of the entire air circuit system. Moreover, the one-way valve has low cost and simple structure, and will not excessively increase the overall system volume or production and use costs.

[0008] Preferably, the air pump's inlet is connected to a gas filter, which can effectively filter impurities in the gas entering the air pump, such as dust and particulate matter, preventing impurities from entering the gas path system and avoiding wear on the internal components of the air pump. It also ensures the purity of the gas subsequently delivered to the gas-using module and endoscope, reducing problems such as gas path blockage, component damage, and interference with test results caused by impurities. The air pump, in conjunction with the one-way valve, can further help improve the stability and reliability of the overall system's air pressure.

[0009] Preferably, the outlet of the pressure relief valve is connected to a humidity sensor, which can monitor the humidity of the gas discharged from the pressure relief valve in real time. Through the feedback of humidity data, it is possible to detect in a timely manner whether there is water vapor condensation or excessive moisture in the gas circuit system, so as to take corresponding measures, such as replacing the desiccant or checking the dryness of the gas source, thereby ensuring that the humidity of the gas supplied to the endoscope is within a suitable range.

[0010] Preferably, the pressure relief valve is connected in series with at least one auxiliary pressure relief valve, which increases the redundancy of the pressure relief design. When the pressure relief valve fails or cannot meet the pressure relief requirements, the auxiliary pressure relief valve can be activated in time to ensure that the pressure of the gas circuit system can be effectively controlled, avoiding safety hazards caused by excessive pressure, such as gas circuit component rupture or damage to the endoscope. This solves the problem that the system's gas pressure stability depends on the single gas sealing of a single pressure relief valve, and improves the stability of gas supply and the accuracy of leak detection.

[0011] Preferably, a particulate filter is connected to the air inlet of the pressure relief valve to filter out small particulate matter in the gas entering the pressure relief valve, preventing the accumulation of particulate matter inside the pressure relief valve and affecting its normal operating performance; when used in conjunction with an auxiliary pressure relief valve, the stability of the system can be further improved, solving the problem that the system pressure stability depends on the single gas sealing of a single pressure relief valve.

[0012] Preferably, the air pump, pressure holding valve, pressure relief valve, auxiliary pressure relief valve, humidity sensor, and pressure sensor are all connected to the control module, realizing automated and intelligent control of the air circuit system. The control module can collect and analyze the working status data of each component in real time, such as the operating parameters of the air pump, the pressure control status of the pressure holding valve, the opening status of the pressure relief valve, and the detection data of the humidity and pressure sensors. Based on this data, the control module can adjust the working status of each component in a timely manner, realizing functions such as precise pressure regulation, fault warning, and automatic protection. This improves the working efficiency and stability of the air circuit system, reduces the complexity and error rate of manual operation, and enhances the intelligence level and reliability of the entire endoscopic examination equipment.

[0013] Preferably, the interfaces connecting the pressure relief valve and the auxiliary pressure relief valve are located on the same side, which facilitates the connection and layout of the gas circuit, reduces the bends and intersections of the gas circuit pipeline, reduces the resistance to gas flow, and makes the gas circuit smoother. At the same time, it also facilitates installation, maintenance and repair, improves work efficiency, reduces the risk of leakage caused by complex gas circuit connections, ensures the sealing and stability of the gas circuit system, and helps to improve the accuracy and reliability of endoscopic examination.

[0014] Preferably, the pressure holding valve, pressure relief valve, and auxiliary pressure relief valve are all fixedly installed on the second base. The second base has an inverted U-shaped structure, which enables centralized installation, facilitates overall fixation and positioning, reduces vibration and displacement caused by unstable valve installation, and ensures the working accuracy and reliability of the valve.

[0015] Preferably, the gas supply module and the gas consumption module are combined to form a gas splitter. The gas pump is fixedly installed on the first U-shaped base. A top cover is detachably installed at the top opening of the first base. The gas splitter is fixedly installed on the top cover, making the structure of the gas circuit system more compact and integrated, which facilitates the overall installation, disassembly and transportation. The detachable top cover facilitates the inspection and maintenance of the gas pump and gas splitter. Internal components can be quickly accessed without a complicated disassembly process, which improves work efficiency and reduces maintenance costs.

[0016] Preferably, the gas chamber is connected to the endoscope via a leak test connector. The leak test connector makes the connection between the gas chamber and the endoscope tighter and more reliable, effectively preventing gas leakage and ensuring the airtightness of the gas circuit system. At the same time, the leak test connector also facilitates the inspection and maintenance of the sealing of the connection. Once a leak is found, it can be dealt with in a timely manner, ensuring the stability of the gas pressure supplied to the endoscope, improving the accuracy and reliability of endoscopic detection, and avoiding detection errors and equipment failures caused by gas leaks.

[0017] As can be seen from the above technical solutions, the advantages of this utility model are:

[0018] 1. A one-way valve is installed between the pressure holding valve and the gas consumption chamber. The one-way valve can ensure that the gas flow direction is from the pressure holding valve to the gas consumption chamber, so that the gas pressure stability at the gas consumption module no longer depends entirely on the single gas of the pressure holding valve. This effectively improves the gas pressure stability of the entire gas circuit system. Moreover, the one-way valve has low cost and simple structure, and will not increase the overall system volume or production and use costs.

[0019] 2. A gas filter is connected to the air inlet of the air pump, which can effectively filter impurities in the gas entering the air pump, preventing impurities from causing wear on the internal components of the air pump. It also ensures the purity of the gas delivered to the gas module and endoscope, reducing problems such as air path blockage, pressure holding valve damage, and interference with test results caused by impurities. The air pump, together with the one-way valve, can further help improve the stability and reliability of the air pressure of the entire system.

[0020] 3. The pressure relief valve should be connected in series with at least one auxiliary pressure relief valve. When the pressure relief valve malfunctions or cannot meet the pressure relief requirements, the auxiliary pressure relief valve can be activated in time to ensure that the pressure of the gas circuit system can be effectively controlled, improve the stability of gas supply and the accuracy of leak detection. With the use of a micro-object filter, it can effectively solve the problem that the system gas pressure stability depends on the single gas sealing of a single pressure relief valve, and further improve the stability of the system. Attached Figure Description

[0021] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the endoscope leak detection circuit system according to one or more embodiments of the present invention.

[0023] Figure 2 This is a schematic diagram of the structure of a gas splitter according to one or more embodiments of the present invention;

[0024] Figure 3 This is a schematic diagram of the interface location of the endoscope leak detection air circuit system according to one or more embodiments of the present invention. Figure 1 ;

[0025] Figure 4 This is a schematic diagram of the interface location of the endoscope leak detection air circuit system according to one or more embodiments of the present invention. Figure 2 ;

[0026] Figure 5This is a schematic diagram of the endoscope leak detection circuit system according to one or more embodiments of the present invention.

[0027] The components represented by the various reference numerals in the diagram are:

[0028] 1. Gas distributor; 2. Air pump; 3. Safety valve; 4. Gas filter; 5. Pressure holding valve; 6. Check valve; 7. Microparticle filter; 8. Pressure relief valve; 9. Auxiliary pressure relief valve; 10. First base; 11. Second base; 12. Top cover; 13. First interface; 14. Second interface; 15. Third interface; 16. Fourth interface; 17. Fifth interface; 18. Sixth interface; 19. Seventh interface; 20. Eighth interface; 21. Ninth interface; 22. Tenth interface; 23. Eleventh interface; 24. Twelfth interface; 25. Leak test connector; 26. Endoscope; 27. Humidity sensor; 28. Control module; 29. ​​Pressure sensor. Detailed Implementation

[0029] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0030] Example 1

[0031] In a typical embodiment of this utility model, such as Figures 1-5 As shown, an endoscope leak detection system is proposed, comprising: an air pump 2, an air supply module, a pressure holding valve 5, an air consumption module, and a pressure relief valve 8, wherein the air supply module includes a safety air chamber ( Figure 5 The gas module contains a gas chamber (Cavity A). Figure 5 The gas supply module and the gas consumption module are combined to form a gas distributor 1. The safety gas chamber is connected to the air pump 2, the safety valve 3, and the pressure holding valve 5 respectively. The safety gas chamber is connected to the gas consumption chamber through the pressure holding valve 5. A one-way valve 6 is also provided between the pressure holding valve 5 and the gas consumption chamber to assist the operation of the pressure holding valve 5. The one-way valve 6 is mechanically sealed so that the gas pressure stability at the gas consumption module is no longer completely dependent on the single gas of the pressure holding valve 5, which effectively improves the gas pressure stability of the entire gas circuit system. Moreover, the one-way valve 6 is low in cost and simple in structure, and will not increase the overall system volume or production and use costs. The gas consumption chamber of the gas consumption module is connected to the pressure relief valve 8 and the endoscope 26 respectively.

[0032] like Figure 1 As shown, the air pump 2 is fixedly installed on the first base 10, which has a U-shaped structure. A top cover 12 is detachably installed at the top opening of the first base 10. The gas distributor 1 is fixedly installed on the top cover 12, and the safety valve 3 is fixedly installed on the gas distributor 1. The safety valve 3 is connected to the safety chamber of the gas distributor 1. The outlet of the air pump 2 is connected to the inlet of the safety chamber through a pipeline. The safety chamber contains several outlets, which are respectively connected to the safety valve 3 and the pressure holding valve 5. When the safety valve 3 is in operation, the pressure holding valve 5 is activated. When the internal pressure of the full air chamber is greater than the opening pressure of the safety valve 3, the safety valve 3 opens to release excess air, ensuring that the gas inside the endoscope 26 is within the specified range. The air inlet of the air pump 2 is connected to a gas filter 4 to dry and filter the gas entering the air pump 2, thereby improving the cleanliness of the gas and thus improving the cleanliness of the gas entering the pressure holding valve 5 from the safety air chamber. This prevents impurities from damaging the sealing performance of the pressure holding valve 5. In conjunction with the one-way valve 6, it further assists in improving the stability of the air pressure of the entire system.

[0033] like Figure 2 As shown, the gas splitter includes a first interface 13, a second interface 14, a third interface 15, a fourth interface 16, a fifth interface 17, and a sixth interface 18. The first interface 13 and the sixth interface 18 are both connected to the safety gas chamber, while the second interface 14, third interface 15, fourth interface 16, and fifth interface 17 are all connected to the gas consumption chamber. The first interface 13 is connected to the outlet of the air pump 2 via a pipeline, and the sixth interface 18 is connected to the inlet of the pressure holding valve 5 via a pipeline. Figure 3 and Figure 4 As shown, the pressure holding valve 5 includes an eleventh port 23 and a twelfth port 24. The eleventh port 23 is the air outlet, and the twelfth port 24 is the air inlet. The sixth port 18 of the safety air chamber is connected to the twelfth port 24 of the pressure holding valve 5 via a pipeline. The eleventh port 23 of the pressure holding valve 5 is connected to the air inlet of the one-way valve 6 via a pipeline. The air outlet of the one-way valve 6 is connected to the fourth port 16 of the air-using chamber via a pipeline. Air enters the safety air chamber through the gas filter 4, the air pump 2, and the first port 13. The airflow in the safety air chamber passes through the sixth port 16 in sequence. After passing through interface 18, twelfth interface 24, pressure holding valve 5, eleventh interface 23, one-way valve 6, and fourth interface 16, the gas enters the gas-using chamber. Through the combined use of gas filter 4, pressure holding valve 5, and one-way valve 6, gas filter 4 ensures the cleanliness of the gas, and one-way valve 6 ensures that the gas flow direction is from pressure holding valve 5 to the gas-using chamber. This solves the problem that the gas pressure stability of the existing gas circuit system depends on the single nature of the gas sealed by pressure holding valve 5, improves the stability and sealing of the system gas pressure, and enables the endoscope 26 to effectively perform leak detection.

[0034] The second interface 14 on the gas splitter 1 is connected to the leak detection connector 25 through a pipeline, and then connected to the endoscope 26 through the leak detection connector 25, so that the gas in the gas chamber can enter the endoscope 26 for leak detection; the third interface 15 on the gas splitter 1 is connected to the pressure sensor 29 through a pipeline, so that the pressure sensor 29 can be used to detect the gas pressure in the gas chamber online.

[0035] The gas splitter 1 uses the fifth port 17 of the gas chamber to connect in sequence a micro-particle filter 7, a pressure relief valve 8, and a humidity sensor 27. The micro-particle filter 7 removes small particles from the gas, solving the problem of pressure relief valve 8 leaking due to small particles. The humidity sensor 27 is used to monitor the humidity of the gas emitted during endoscope leak detection in real time, ensuring the effectiveness and accuracy of leak detection.

[0036] In this embodiment, at least one auxiliary pressure relief valve 9 is connected in series at the outlet of the pressure relief valve 8 to assist in the exhaust operation. This solves the problem that the system pressure stability depends on the single gas sealing of the single pressure relief valve 8, and improves the gas supply stability and leak detection accuracy.

[0037] like Figure 3 and Figure 4 As shown, the pressure relief valve 8 has a seventh interface 19 at its air inlet and a tenth interface 22 at its air outlet; the auxiliary pressure relief valve 9 has a ninth interface 21 at its air inlet and an eighth interface 20 at its air outlet. The fifth interface 17 of the air chamber is connected to the air inlet of the micro-object filter 7 through a pipeline, the air outlet of the micro-object filter 7 is connected to the seventh interface 19 of the pressure relief valve 8 through a pipeline, the tenth interface 22 of the pressure relief valve 8 is connected to the ninth interface 21 of the auxiliary pressure relief valve 9 through a pipeline, and the eighth interface 20 of the auxiliary pressure relief valve 9 is connected to the humidity sensor 27 through a pipeline.

[0038] To improve the overall system compactness, the interfaces connecting the pressure relief valve 8 and the auxiliary pressure relief valve 9 are located on the same side. For example, the tenth interface 22 of the pressure relief valve 8 and the ninth interface 21 of the auxiliary pressure relief valve 9 are located on the same side to simplify the routing of the pipeline.

[0039] In this embodiment, the pressure holding valve 5, the pressure relief valve 8, and the auxiliary pressure relief valve 9 are all fixedly installed on the second base 11. The second base 11 has an inverted U-shaped structure to improve the integration of the system, reduce space occupation, and facilitate installation and use.

[0040] In this embodiment, a control module 28 is also provided, such as Figure 5 As shown, the control module 28 is connected to the air pump 2, pressure holding valve 5, pressure relief valve 8, auxiliary pressure relief valve 9, humidity sensor 27 and pressure sensor 29 respectively, so as to realize online detection of pressure and coordinate the operation of each valve.

[0041] It is understood that all the pipes mentioned in this embodiment are silicone flexible tubes.

[0042] The specific working principle is as follows:

[0043] At the start of leak testing, the gas supply module of gas distributor 1 generates a stable airflow. Specifically, air enters the safety gas chamber through gas filter 4, air pump 2, and first interface 13. The gas in the safety gas chamber enters the usage gas chamber through sixth interface 18, pressure holding valve 5, check valve 6, and fourth interface 16. The gas in the usage gas chamber enters the endoscope 26 through second interface 14 and leak test connector 25 for leak testing. Control module 28 monitors the gas pressure inside the endoscope in real time through pressure sensor 29 and third interface 15. When the set pressure is reached, the gas supply module stops supplying gas. At this time, control module 28 controls pressure holding valve 5 to maintain the gas supply between the endoscope and the leak test gas system. The system is completely sealed, with one-way valve 6 assisting in pressure maintenance. Control module 28 monitors the gas pressure changes inside the endoscope in real time via pressure sensor 29. When the leak test is completed, control module 28 controls pressure relief valve 8 and auxiliary pressure relief valve 9 to operate. Pressure relief valve 8, auxiliary pressure relief valve 9, and humidity sensor 27 are connected. Gas from the endoscope 26 and the gas chamber enters pressure relief valve 8 through fifth interface 17. The humidity of the discharged gas can be detected in real time to release the detected gas into the atmosphere. This ensures the stability of the gas supply system and the reliability of the entire system, as well as timely exhaust of leak-detected gas from the endoscope and real-time detection of gas humidity, guaranteeing the effectiveness and accuracy of the leak test.

[0044] Example 2

[0045] In a typical embodiment of this utility model, an endoscope leak detection system is proposed, comprising: an air pump 2, an air supply module, a pressure holding valve 5, an air consumption module, and a pressure relief valve 8. The air supply module contains a safety air chamber, and the air consumption module contains a consumption air chamber. The safety air chamber is connected to the air pump 2, the safety valve 3, and the pressure holding valve 5, and the safety air chamber is connected to the consumption air chamber through the pressure holding valve 5. A one-way valve 6 is also provided between the pressure holding valve 5 and the consumption air chamber to assist the operation of the pressure holding valve 5. The consumption air chamber of the air consumption module is connected to the pressure relief valve 8, the endoscope 26, and the pressure sensor 29.

[0046] In this embodiment, only one pressure relief valve 8 is provided, and a microparticle filter 7 is connected in series between the pressure relief valve 8 and the gas chamber. A humidity sensor 27 is connected to the outlet of the pressure relief valve 8 to remove microparticles in the gas through the microparticle filter 7. This solves the problem of pressure relief valve leakage caused by microparticles, ensuring the effectiveness and accuracy of leak detection.

[0047] The difference between this embodiment and embodiment 1 is that the auxiliary pressure relief valve 9 is omitted. This avoids the reliance on the single gas supply of the pressure relief valve 8, simplifies the structure, and reduces the cost of use.

[0048] It should be noted that, except for the absence of the auxiliary pressure relief valve 9, the structure and connection relationships in this embodiment are the same as those in Embodiment 1.

[0049] Example 3

[0050] In a typical embodiment of this utility model, an endoscope leak detection system is proposed, comprising: an air pump 2, an air supply module, a pressure holding valve 5, an air consumption module, and a pressure relief valve 8. The air supply module contains a safety air chamber, and the air consumption module contains a consumption air chamber. The safety air chamber is connected to the air pump 2, the safety valve 3, and the pressure holding valve 5, and the safety air chamber is connected to the consumption air chamber through the pressure holding valve 5. A one-way valve 6 is also provided between the pressure holding valve 5 and the consumption air chamber to assist the operation of the pressure holding valve 5. The consumption air chamber of the air consumption module is connected to the pressure relief valve 8, the endoscope 26, and the pressure sensor 29.

[0051] In this embodiment, at least one auxiliary pressure relief valve 9 is sequentially connected to the outlet end of the pressure relief valve 8, and a humidity sensor 27 is also connected in series. This allows the auxiliary pressure relief valve 9 to assist the operation of the pressure relief valve 8, solving the problem of pressure relief valve leakage caused by small particulate matter and ensuring the effectiveness and accuracy of leak detection.

[0052] The difference between this embodiment and embodiment 1 is that the use of the micro-object filter 7 is omitted. This avoids the dependence on the single gas supply of the pressure relief valve 8, simplifies the structure, and reduces the cost of use.

[0053] It should be noted that, except for the absence of the micro-object filter 7, the structure and connection relationships in this embodiment are the same as those in Embodiment 1.

[0054] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An endoscope leak detection system, comprising: The gas supply module and the gas consumption module are characterized in that the gas supply module contains a safety gas chamber and the gas consumption module contains a gas consumption chamber. The safety gas chamber is connected to the air pump (2), the safety valve (3), and the pressure holding valve (5) respectively. The safety gas chamber is connected to the gas consumption chamber through the pressure holding valve (5). A one-way valve (6) is provided between the pressure holding valve (5) and the gas consumption chamber. The gas consumption chamber is connected to the pressure relief valve (8), the endoscope (26), and the pressure sensor (29) respectively.

2. The endoscope leak detection system according to claim 1, characterized in that, The air pump (2) has an air filter (4) connected to its air inlet.

3. The endoscope leak detection system according to claim 1, characterized in that, A humidity sensor (27) is connected to the outlet of the pressure relief valve (8).

4. The endoscope leak detection system according to claim 3, characterized in that, The pressure relief valve (8) is connected in series with at least one auxiliary pressure relief valve (9).

5. The endoscope leak detection system according to claim 3 or 4, characterized in that, A micro-particle filter (7) is connected to the air inlet of the pressure relief valve (8).

6. The endoscope leak detection system according to claim 5, characterized in that, The air pump (2), pressure holding valve (5), pressure relief valve (8), auxiliary pressure relief valve (9), humidity sensor (27) and pressure sensor (29) are all connected to the control module (28).

7. The endoscope leak detection system according to claim 4, characterized in that, The interfaces connecting the pressure relief valve (8) and the auxiliary pressure relief valve (9) are located on the same side.

8. The endoscope leak detection system according to claim 4, characterized in that, The pressure holding valve (5), pressure relief valve (8) and auxiliary pressure relief valve (9) are all fixedly installed on the second base (11), which is an inverted U-shaped structure.

9. The endoscope leak detection system according to claim 1, characterized in that, The gas supply module and the gas consumption module are combined to form a gas splitter (1). The gas pump (2) is fixedly installed on the first base (10) of the U shape. The top opening of the first base (10) is detachably installed with a top cover (12). The gas splitter (1) is fixedly installed on the top cover (12).

10. The endoscope leak detection system according to claim 1, characterized in that, The air chamber is connected to the endoscope (26) via a leak test connector (25).

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