Portable detection device and method for detecting the outlet pressure of a diving suit inflation device

Abstract

The application discloses a portable detection device and method for detecting the outlet pressure of a diving suit inflation device, and comprises the following steps: S11, inserting the right side of the shell of the portable detection device into the inflation interface of the diving suit inflation device and keeping until the reading of the micro-pressure diaphragm pressure gauge is stable; S12, recording the reading of the micro-pressure diaphragm pressure gauge; and S13, cyclically and repeatedly executing steps S11-S12 to measure the reading of the micro-pressure diaphragm pressure gauge for not less than three times, and judging whether the reading of the micro-pressure diaphragm pressure gauge each time is within the numerical range [a, b] or not; if yes, it is indicated that the diving suit inflation device is normal, otherwise, it is indicated that the diving suit inflation device needs to be suspended for use and maintenance. The portable detection device is convenient to operate, can quickly and accurately judge whether the working state of the diving suit inflation device meets the requirements based on the pressure gauge value of the detection device, and thus the life safety of the diver is ensured.

Description

Technical Field

[0001] This invention relates to the field of testing technology for diving suit inflation devices, and in particular to a portable testing device and method for testing the outlet pressure of a diving suit inflation device under normal pressure. Background Technology

[0002] The diving suit inflation device is installed inside a rapid pressurization chamber. During underwater escape, the diver, wearing a diving suit, enters the chamber, which is then rapidly pressurized by filling with water. The diver inflates the air bladders in their diving suit using the inflation device to ensure normal breathing. Once the internal pressure equalizes with the external water pressure, the chamber's top cover opens, and the diver, relying on the buoyancy provided by the diving suit air bladders, quickly rises to the surface to escape danger and await rescue. Therefore, the operational status of the diving suit inflation device directly affects the diver's safety, making it crucial to confirm its performance meets requirements before underwater escape. Furthermore, time is a critical factor in underwater escape; therefore, designing a portable and easily operable testing device, and developing a rapid testing method and judgment criteria, is an important research topic in this field. Summary of the Invention

[0003] This invention addresses the problems and shortcomings of existing technologies by providing a portable testing device and method for detecting the outlet pressure of a diving suit inflation device under normal pressure.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] This invention provides a portable testing device for detecting the outlet pressure of a diving suit inflation device. It is characterized by comprising a housing, the right side of which matches the shape of the inflation port of the diving suit inflation device so that the right side of the housing can be inserted into the inflation port. The housing has a stepped inner cavity along its centerline, with the diameter of each stepped inner cavity from right to left being larger than the diameter of the next stepped inner cavity. A throttling plug is fixed in the rightmost stepped inner cavity, and a throttling orifice is formed within the throttling plug. A notch is formed on the left side of the housing, and a strip-shaped block is placed within the notch. A nozzle is disposed within the strip-shaped block, with the larger diameter end of the nozzle facing the housing and the smaller diameter end facing the end cap. The end cap is fitted onto the housing, sandwiching the strip-shaped block between the end cap and the housing. An end cap through hole is formed within the end cap. The stepped inner cavity, the nozzle, and the end cap through hole are sequentially connected.

[0006] The top of the housing has an inlet and a vent hole sequentially opened along the width direction of the housing. A connector is inserted into the inlet, and a hollow gauge connector is provided on the top of the connector. The top of the connector and the bottom of the hollow gauge connector are locked and fixed by an externally fitted locking member. A micro-pressure diaphragm pressure gauge is fixed on the top of the hollow gauge connector. The leftmost step of the stepped inner cavity, the vent hole, the central through hole of the connector, the hollow inner cavity of the hollow gauge connector, and the micro-pressure diaphragm pressure gauge are sequentially connected.

[0007] Preferably, the stepped inner cavity is a three-step inner cavity, with the diameter of the first step inner cavity > the diameter of the second step inner cavity > the diameter of the third step inner cavity from right to left.

[0008] Preferably, the rightmost step of the stepped inner cavity is provided with an internal thread, and the throttling plug is a screw plug with an external thread, which is screwed into the rightmost step of the stepped inner cavity.

[0009] Preferably, a small-diameter cylindrical flow hole is provided at the middle position on the left side of the strip block, and a large-diameter frustoconical flow hole is provided at the middle position on the right side of the strip block. The right side of the frustoconical flow hole protrudes from the right side of the strip block, and the cylindrical flow hole and the frustoconical flow hole are connected to form a nozzle.

[0010] Preferably, a first washer is fitted around the outer circumference of the protruding portion of the frustum-shaped flow hole, and the first washer seals the gap between the frustum-shaped flow hole and the recess.

[0011] Preferably, the upper end of the end cap is fixed to the upper left end of the housing by screws, and the lower end of the end cap is also fixed to the lower left end of the housing by screws.

[0012] Preferably, the throttling plug has a pea-shaped throttling orifice symmetrical about the center.

[0013] Preferably, the vent extends into the socket, and a second washer is fitted around the outer circumference of the extended portion of the vent. The second washer is in close contact with the end of the connector and seals the gap between the vent and the socket. The connection between the connector and the hollow gauge connector is sealed by a gasket.

[0014] This invention also provides a method for detecting the outlet pressure of a diving suit inflation device, characterized in that it utilizes the aforementioned portable detection device, and the detection method includes the following steps:

[0015] S11. Insert the right side of the portable detection device housing into the inflation port of the diving suit inflation device and keep it in place until the reading of the micro-pressure diaphragm pressure gauge stabilizes.

[0016] S12. Record the reading of the micro-pressure diaphragm pressure gauge;

[0017] S13. Repeat steps S11-S12 in a loop, and measure the reading of the micro-pressure diaphragm pressure gauge at least 3 times. Determine whether the reading of the micro-pressure diaphragm pressure gauge is within the numerical range [a, b] each time. If it is, it indicates that the diving suit inflation device is working normally. Otherwise, it indicates that the diving suit inflation device must be taken out of service for maintenance.

[0018] Preferably, the following steps are included before step S11:

[0019] S01. Turn on the air source to supply air to the diving suit inflation device and set the air supply pressure;

[0020] S02. Insert the right side of the portable detection device housing into the inflation port of the diving suit inflation device and keep it in place until the reading of the micro-pressure diaphragm pressure gauge stabilizes.

[0021] S03. Remove the portable testing device from the inflation port;

[0022] S04. Repeat steps S02-S03 at least 4 times, then wait for a set time before proceeding to step S11.

[0023] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0024] The positive and progressive effects of this invention are as follows:

[0025] The portable detection device designed in this invention is easy to operate and can quickly and accurately determine whether the working status of the diving suit inflation device meets the requirements based on the pressure gauge readings of the detection device, thereby ensuring the safety of divers. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a portable detection device according to a preferred embodiment of the present invention.

[0027] Figure 2 This is a schematic diagram of the throttle plug according to a preferred embodiment of the present invention.

[0028] Figure 3 This is a schematic diagram of the structure of the portable detection device inserted into the diving suit inflation device according to a preferred embodiment of the present invention. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figure 1-3 As shown, this embodiment provides a portable testing device 100 for detecting the outlet pressure of a diving suit inflation device. It includes a housing 101, the right side of which matches the shape of the inflation port of the diving suit inflation device 200 so that the right side of the housing 101 can be inserted into the inflation port.

[0031] The housing 101 has a three-tiered inner cavity 102 along its centerline. From right to left, the diameter of each tier is larger than the diameter of the next tier; that is, from right to left, the diameter of the first tier > the diameter of the second tier > the diameter of the third tier. The tiered inner cavity 102 acts as a buffer for airflow, preventing excessive airflow impact from causing oscillations or instability in the portable detection device 100, which could lead to oscillations in the micro-pressure diaphragm gauge on the housing 101 and inaccurate readings.

[0032] The first stage of the three-tiered inner cavity 102 has an internal thread, and the throttling plug 103 is a screw plug with an external thread. The throttling plug 103 is screwed into the first stage of the three-tiered inner cavity 102, and the throttling plug 103 is in close contact with the left end inner wall of the first stage inner cavity. The throttling plug 103 has pea-shaped throttling holes symmetrical about the center. The purpose of setting the throttling plug 103 is to play a role in throttling and buffering, and to control the airflow rate entering the second stage inner cavity.

[0033] A notch is provided on the left side of the housing 101, and a strip block 104 is placed in the notch. A small-diameter cylindrical flow hole 105 is provided at the middle position on the left side of the strip block 104, and a large-diameter frustoconical flow hole 106 is provided at the middle position on the right side of the strip block 104. The right side of the frustoconical flow hole 106 protrudes beyond the right side of the strip block 104. The cylindrical flow hole 105 and the frustoconical flow hole 106 are connected to form a nozzle. A first washer 107 is fitted on the outer circumference of the protruding part of the frustoconical flow hole 105. The first washer 107 is used to seal the gap between the frustoconical flow hole 105 and the notch.

[0034] The upper end of the end cap 108 is fixed to the upper left side of the housing 101 by screws 109, and the lower end of the end cap 108 is also fixed to the lower left side of the housing 101 by screws 109. A strip block 104 is sandwiched between the end cap 108 and the housing 101. An end cap through hole 110 is provided inside the end cap 108. The end cap through hole 110 is a funnel-shaped through hole facing the end cap. Thus, the three-tiered inner cavity 102, the frustum-shaped flow hole 106, the cylindrical flow hole 105, and the end cap through hole 110 are sequentially connected to form an airflow channel. Part of the airflow entering the portable detection device 100 flows out through this airflow channel.

[0035] The top of the housing 101 has a socket and a vent 111 sequentially formed along the width direction of the housing. The vent 111 extends into the socket, and a connector 112 is inserted into the socket. A second washer 113 is fitted around the outer circumference of the extended portion of the vent 111, and the second washer 113 is in close contact with the end of the connector 112. The second washer 113 is used to seal the gap between the vent 111 and the socket. A hollow gauge connector 113 is provided on the top of the connector 112, and the connection between the connector 112 and the hollow gauge connector 113 is open. The gasket 114 is used for sealing. The top of the connector 112 and the bottom of the hollow gauge connector 113 are locked and fixed by the externally fitted locking member 116. A micro-pressure diaphragm pressure gauge 115 is fixed on the top of the hollow gauge connector 113. The third-stage inner cavity of the three-step inner cavity 102, the vent 111, the central through hole of the connector 112, the hollow inner cavity of the hollow gauge connector 113 and the micro-pressure diaphragm pressure gauge 115 are connected in sequence to form a sampling channel. The airflow part entering the portable detection device 100 flows through the sampling channel.

[0036] The outlet pressure being tested is in the kPa range, which is relatively low. Therefore, a large diaphragm micro-pressure gauge is used, as the diaphragm design significantly reduces the impact of reading errors caused by fluctuations in the air supply. The shell shape is designed according to the inflation connector of the diving suit inflation device, allowing direct connection to the inflation device without the need for intermediate interfaces or additional piping for testing operations.

[0037] The diving suit inflation device is an existing device; see the inventor's previous invention patent application with application number CN201710157369.7 entitled "Rapid Escape Diving Suit Inflation System".

[0038] See Figure 3 Turn on the air source to supply air to the diving suit inflation device. Connect the portable testing device to the inflation port of the diving suit inflation device and read the data on the pressure gauge of the portable testing device to determine whether the outlet pressure requirement is met. The specific steps are as follows:

[0039] Preparation:

[0040] S01. Turn on the air source to supply air to the diving suit inflation device and set the air supply pressure;

[0041] S02. Insert the right side of the housing 101 of the portable detection device into the inflation port of the diving suit inflation device and keep it in place until the reading of the micro-pressure diaphragm pressure gauge 115 stabilizes.

[0042] S03. Remove the portable testing device from the inflation port;

[0043] S04. Repeat steps S02-S03 5 times (the portable testing device must ensure that the diving suit inflation device is inserted and removed at least 5 times to ensure that the internal pressure of the diving suit inflation device is balanced and reaches a stable working state). Then wait 2 minutes before starting the formal test.

[0044] Testing process:

[0045] S11. Insert the right side of the housing 101 of the portable detection device into the inflation port of the diving suit inflation device and keep it in place until the reading of the micro-pressure diaphragm pressure gauge 115 stabilizes.

[0046] S12. Record the reading of the micro-pressure diaphragm pressure gauge 115;

[0047] S13. Repeat steps S11-S12 in a loop, and measure the reading of the micro-pressure diaphragm pressure gauge 115 4 times. Determine whether the reading of the micro-pressure diaphragm pressure gauge 115 is within the numerical range [a, b] each time. If it is, it indicates that the diving suit inflation device is working normally. Otherwise, it indicates that the diving suit inflation device must be taken out of service for maintenance.

[0048] Judgment Basis: The function of the diving suit inflation device (CN201710157369.7 "Rapid Escape Diving Suit Inflation System") is to supply air to the diving suit (CN201510284332.1 "Rapid Escape Suit under High Pressure") airbags during the rapid underwater pressurization phase, thereby providing divers with the necessary buoyancy and breathing gas. The diving suit inflation device is designed with a feedback adjustment function. During the rapid pressurization phase of the pressurization chamber, the device can both follow the chamber pressure rise to supply airbags, ensuring they remain fully inflated, and can also adjust in real time according to the pressurization rate to prevent excessive air supply that could cause the airbags to burst. The diving suit inflation device is required to provide feedback adjustment within the range of [a, b] kPa, and simultaneously provide an air supply flow rate of not less than c L / min to the diving suit airbags. Therefore, based on the air supply capacity of the diving suit inflation device and the air demand of the diving suit, a portable testing device was designed to detect the sampling method and nozzle diameter. The working status of the inflation device can be quickly determined by reading the pressure gauge value of the testing device.

[0049] The logical order of the judgments is as follows:

[0050]

[0051] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A portable testing device for detecting the outlet pressure of a diving suit inflation device, characterized in that, It includes a shell, the right side of which matches the shape of the inflation port of the diving suit inflation device so that the right side of the shell can be inserted into the inflation port. The shell has a stepped inner cavity along the center line. The diameter of the stepped inner cavity from right to left is larger than the diameter of the next stepped inner cavity. A throttling plug is fixed in the rightmost step of the stepped inner cavity. The throttling plug has a throttling orifice. The left side of the shell has a notch. A strip block is placed in the notch. A nozzle is set in the strip block. The large diameter end of the nozzle faces the shell and the small diameter end faces the end cap. The end cap is connected to the shell and clamps the strip block between the end cap and the shell. The end cap has an end cap through hole. The stepped inner cavity, the nozzle and the end cap through hole are connected in sequence. The top of the housing has an inlet and a vent hole sequentially opened along the width direction of the housing. A connector is inserted into the inlet, and a hollow gauge connector is provided on the top of the connector. The top of the connector and the bottom of the hollow gauge connector are locked and fixed by an externally fitted locking member. A micro-pressure diaphragm pressure gauge is fixed on the top of the hollow gauge connector. The leftmost step of the stepped inner cavity, the vent hole, the central through hole of the connector, the hollow inner cavity of the hollow gauge connector, and the micro-pressure diaphragm pressure gauge are sequentially connected.

2. The portable testing device for detecting the outlet pressure of a diving suit inflation device as described in claim 1, characterized in that, The stepped inner cavity is a three-step inner cavity, with the diameter of the first step inner cavity > the diameter of the second step inner cavity > the diameter of the third step inner cavity from right to left.

3. The portable testing device for detecting the outlet pressure of the inflator of a diving suit as described in claim 1, characterized in that, The rightmost step of the stepped inner cavity is provided with an internal thread, and the throttling plug is a screw plug with an external thread, which is screwed into the rightmost step of the stepped inner cavity.

4. The portable testing device for detecting the outlet pressure of the inflator of a diving suit as described in claim 1, characterized in that, A small-diameter cylindrical flow hole is provided at the middle position on the left side of the strip block, and a large-diameter frustoconical flow hole is provided at the middle position on the right side of the strip block. The right side of the frustoconical flow hole protrudes from the right side of the strip block, and the cylindrical flow hole and the frustoconical flow hole are connected to form a nozzle.

5. The portable testing device for detecting the outlet pressure of the inflator of a diving suit as described in claim 4, characterized in that, A first washer is fitted around the outer circumference of the protruding part of the frustum-shaped flow hole, and the first washer seals the gap between the frustum-shaped flow hole and the notch.

6. The portable testing device for detecting the outlet pressure of the inflator of a diving suit as described in claim 1, characterized in that, The upper end of the end cap is fixed to the upper left end of the housing with screws, and the lower end of the end cap is also fixed to the lower left end of the housing with screws.

7. The portable testing device for detecting the outlet pressure of the inflator of a diving suit as described in claim 1, characterized in that, The throttling plug has a pea-shaped throttling orifice symmetrical about the center.

8. The portable testing device for detecting the outlet pressure of the inflation device of a diving suit as described in claim 1, characterized in that, The vent extends into the socket, and a second washer is fitted around the outer circumference of the extended portion of the vent. The second washer is in close contact with the end of the connector and seals the gap between the vent and the socket. The connection between the connector and the hollow gauge connector is sealed by a gasket.

9. A method for detecting the outlet pressure of a diving suit inflation device, characterized in that, It is implemented using a portable detection device as described in any one of claims 1-8, and the detection method includes the following steps: S11. Insert the right side of the portable detection device housing into the inflation port of the diving suit inflation device and keep it in place until the reading of the micro-pressure diaphragm pressure gauge stabilizes. S12. Record the reading of the micro-pressure diaphragm pressure gauge; S13. Repeat steps S11-S12 in a loop, and measure the reading of the micro-pressure diaphragm pressure gauge at least 3 times. Determine whether the reading of the micro-pressure diaphragm pressure gauge is within the numerical range [a, b] each time. If it is, it indicates that the diving suit inflation device is working normally. Otherwise, it indicates that the diving suit inflation device must be taken out of service for maintenance.

10. The method for detecting the outlet pressure of the inflator of a diving suit as described in claim 9, characterized in that, The following steps are included before step S11: S01. Turn on the air source to supply air to the diving suit inflation device and set the air supply pressure; S02. Insert the right side of the portable detection device housing into the inflation port of the diving suit inflation device and keep it in place until the reading of the micro-pressure diaphragm pressure gauge stabilizes. S03. Remove the portable testing device from the inflation port; S04. Repeat steps S02-S03 at least 4 times, then wait for a set time before proceeding to step S11.

Images