A device for testing the corrosion resistance of protective clothing fabric using a sensor and a testing method thereof

Abstract

This invention relates to the technical field of protective clothing fabric testing, specifically a device and method for testing the corrosion resistance of protective clothing fabric using sensors. The device includes an operating table and a limiting mechanism mounted on the operating table. A digital image acquisition instrument is installed on the operating table. A receiving frame is mounted on the operating table, and a support shaft is provided on the receiving frame. A syringe is mounted on the support shaft, and a pumping component is installed inside the syringe. An infusion mechanism is mounted on the receiving frame. An intermittent drive component is located on the operating table and is connected to the conveying mechanism, the limiting mechanism, and the pumping component. In this invention, during the infusion process of the transfer cylinder by the conveying mechanism, the limiting mechanism drives the protective clothing fabric to rotate intermittently, so that the previously treated area switches to a new testing position each time it is sprayed. With the coordinated operation of the pumping component and the syringe, multiple alternating spray tests of different concentrations of chemical agents can be achieved.

Description

Technical Field

[0001] This invention relates to the technical field of protective clothing fabric testing, specifically to a device and method for testing the corrosion resistance of protective clothing fabric using sensors. Background Technology

[0002] Protective clothing fabrics are generally made of breathable, waterproof, and durable materials. They are categorized into several types based on different protection needs and are widely used in medical, epidemic prevention, and industrial environments, protecting both the user and ensuring safety. According to relevant national standards, chemical protective clothing fabrics must possess excellent corrosion resistance, penetration resistance, and physical abrasion resistance to ensure the safety of workers in various hazardous environments.

[0003] In industrial, firefighting, and medical occupational environments, protective clothing often faces the threat of acidic and alkaline chemicals. Acidic and alkaline chemicals are among the most common hazardous chemicals; contact with them can cause severe chemical burns to the skin, and even systemic harm through skin absorption. Therefore, testing the protective clothing's ability to protect against these common chemicals is a crucial step in assessing its safety.

[0004] With the development of sensor technology, protective clothing corrosion resistance testing devices are moving towards intelligence and automation, integrating multiple types of sensors into the testing device to achieve automatic control and data acquisition of the testing process. Computers are then used to process and analyze the test data, improving testing accuracy and efficiency.

[0005] When conducting corrosion resistance tests on protective clothing fabrics, the fabric is typically fixed in place before chemical reagents of varying concentrations are dripped onto its surface. Traditional fixed-method testing leads to deviations in test results due to repeated localized corrosion. Therefore, existing technologies generally employ a movable clamping mechanism to control the area sprayed in the previous test, switching it to a different location each time the protective clothing fabric is tested. However, different concentrations of chemical reagents require multiple droppers, each of which needs to be controlled separately, significantly increasing the complexity of the control system. Furthermore, timing discrepancies can easily occur when switching between different droppers, leading to control errors during the testing process. Summary of the Invention

[0006] The purpose of this invention is to provide a device for testing the corrosion resistance of protective clothing fabrics using sensors, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An apparatus for testing the corrosion resistance of protective clothing fabric using sensors includes an operating table and a limiting mechanism disposed on the operating table for clamping and limiting the fabric. A digital image acquisition instrument for detecting the fabric is installed on the operating table.

[0009] A receiving frame is installed on the operating table. A support shaft that coincides with the axis of the limiting mechanism is provided on the receiving frame. A syringe is installed at the eccentric position of the support shaft. A pumping component is installed inside the syringe. The syringe is connected to the inner side of the transfer cylinder at the bottom end of the support shaft.

[0010] An infusion mechanism is installed on the receiving frame, and multiple such mechanisms are distributed around the circumference of the support shaft. Each mechanism can communicate with the transfer cylinder. When the squeezing mechanism installed on the support shaft rotates, the infusion mechanism can sequentially and equally deliver chemical agents of different concentrations to the transfer cylinder.

[0011] An intermittent drive unit is disposed on the operating table and is respectively connected to the conveying mechanism, the limiting mechanism and the pumping assembly.

[0012] The device for testing the corrosion resistance of protective clothing fabric using the aforementioned sensor: the limiting mechanism includes a limiting seat rotatably mounted on the operating table, a clamping plate hinged to the operating table, and a rotating ring rotatably mounted on the clamping plate that is compatible with the limiting seat.

[0013] The device for testing the corrosion resistance of protective clothing fabric using the sensor described above: the pumping assembly includes a piston slidably disposed in the syringe, an lifting cylinder is provided at the end of the piston, and a second ball is movably disposed on the inner wall of the lifting cylinder;

[0014] It also includes a pumping shaft rotatably mounted at the end of the syringe, the pumping shaft being coaxially arranged with the lifting cylinder, one end of the pumping shaft being inserted into the lifting cylinder and forming a groove that is adapted to slide with the second ball bearing.

[0015] The device for testing the corrosion resistance of protective clothing fabric using the aforementioned sensor: the extrusion mechanism includes a movable shaft rotatably mounted on the support shaft, the movable shaft being coaxially arranged with the support shaft, a rotating plate being sleeved on the movable shaft, and a roller being rotatably mounted on the end of the rotating plate away from the movable shaft.

[0016] The device for testing the corrosion resistance of protective clothing fabric using the aforementioned sensor: the infusion mechanism includes a storage tank, which is connected to the inner side of the transfer cylinder via a first connecting pipe. A spherical seat is formed on the first connecting pipe, and a ball valve is rotatably installed inside the spherical seat. A through hole is formed on the ball valve, and a connecting shaft is connected to the ball valve, which is able to pass through the spherical seat. A limit groove is formed on the connecting shaft.

[0017] It also includes an opening and closing control component installed on the support shaft, with multiple components arranged along the circumference of the support shaft and connected to the connecting shaft.

[0018] The device for testing the corrosion resistance of protective clothing fabric using the aforementioned sensor: the opening and closing control component includes an insert cylinder mounted on the support shaft, an insert rod slidably inserted into one end of the insert cylinder, a moving block provided on the end of the insert rod away from the insert cylinder, the pressure-bearing surface of the moving block being arc-shaped, a connecting hoop sleeved on the insert rod, the end of the connecting hoop away from the insert rod being slidably sleeved on the connecting shaft, and a first ball bearing movably disposed on the inner wall of the connecting hoop, which is slidably adapted to the limiting groove;

[0019] It also includes a spring, which is disposed inside the plug tube. One end of the plug tube abuts against the inner end of the plug tube, and the other end abuts against the plug rod.

[0020] The device for testing the corrosion resistance of protective clothing fabric using the aforementioned sensor: the intermittent drive component includes a drive shaft rotatably mounted on the operating table, one end of which is driven to rotate by a motor mounted on the operating table, and the other end is connected to a drive shaft rotatably mounted on the operating table via a bevel gear set;

[0021] It also includes a first driven shaft and a second driven shaft that are rotatably mounted on the operating table, and the driving shaft transmits power to the first driven shaft and the second driven shaft respectively through an intermittent transmission component.

[0022] The device for testing the corrosion resistance of protective clothing fabric using the sensor described above: the first driven shaft is connected to the transmission shaft rotatably mounted on the operating table via a first toothed belt, one end of the transmission shaft is connected to the limiting seat via a gear set, and the other end is connected to the movable shaft via a second toothed belt;

[0023] The second driven shaft is connected to the pumping shaft via a third toothed belt.

[0024] The device for testing the corrosion resistance of protective clothing fabric using sensors as described above: an air inlet is provided on the operating table, the air inlet is located at the bottom of the limiting seat, and hot and cold air can be alternately input into the air inlet.

[0025] A method for testing the corrosion resistance of protective clothing fabric using a sensor, employing the apparatus described in any one of the above-mentioned methods, includes the following steps:

[0026] Step 1: After the limiting mechanism clamps the protective clothing fabric, the intermittent drive component is activated. At this time, the driving limiting mechanism can drive the protective clothing fabric to rotate, and the squeezing mechanism can squeeze the opening and closing control component.

[0027] Step 2: When the opening and closing control component is pressed, it makes way for the rotation of the extrusion mechanism and stores elastic potential energy, thereby driving the ball valve to deflect. After a certain period of time, the ball valve releases the blockage of the first connecting pipe, and the chemical agent in the storage tank is transported to the transfer cylinder. After the extrusion mechanism separates from the opening and closing control component, it stops automatically. Under the stored elasticity, the opening and closing control component resets and the ball valve can perform the sealing action again.

[0028] Step 3: Under the control of the intermittent drive component, the pumping component can perform the pumping operation, so that the liquid in the transfer cylinder is pumped into the syringe and then sprayed onto the protective clothing fabric. The surface of the protective clothing fabric is monitored by a digital image acquisition instrument, and the monitoring results are transmitted to a computer for comparative analysis.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] The design, which combines intermittent drive components with a conveying mechanism, allows a certain amount of chemical agent to be intermittently delivered from low to high concentration into the transfer cylinder by the infusion mechanism. After each delivery, the delivery channel can be automatically blocked, thus effectively avoiding problems such as excessive liquid or uneven concentration gradient that may be caused by continuous delivery. This ensures the precise control of the volume and concentration of chemical agent applied to the protective clothing fabric each time, providing stable and reliable test conditions for corrosion resistance testing.

[0031] During the process of the conveying mechanism delivering liquid to the transfer cylinder, the limiting mechanism drives the protective clothing fabric to rotate intermittently, so that the previously treated area switches to a new test position each time it is sprayed. This effectively avoids the problem of localized excessive corrosion or overlapping areas caused by repeated testing. With the coordinated cooperation of the extraction component and the syringe, multiple alternating spray tests of chemical agents with different concentrations can be achieved, ensuring that the corrosion resistance of the entire fabric is comprehensively and uniformly evaluated, and improving the representativeness and reliability of the test results. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of a device for testing the corrosion resistance of protective clothing fabric using sensors.

[0033] Figure 2This is a schematic diagram of the limiting mechanism and air inlet duct in a device for testing the corrosion resistance of protective clothing fabric using sensors.

[0034] Figure 3 This is a schematic diagram of the limiting mechanism in a device for testing the corrosion resistance of protective clothing fabric using sensors.

[0035] Figure 4 A schematic diagram of the infusion mechanism and receiving shaft in a device for testing the corrosion resistance of protective clothing fabric using sensors.

[0036] Figure 5 A schematic diagram of the opening and closing control component and the infusion mechanism in a device for testing the corrosion resistance of protective clothing fabric using sensors.

[0037] Figure 6 An exploded view of the opening and closing control component in a device for testing the corrosion resistance of protective clothing fabric using sensors.

[0038] Figure 7 A schematic diagram of the syringe and pumping components in a device for testing the corrosion resistance of protective clothing fabric using sensors.

[0039] Figure 8 A schematic diagram of the intermittent drive component, delivery shaft, and movable shaft in a device for testing the corrosion resistance of protective clothing fabric using sensors.

[0040] Figure 9 A schematic diagram of the intermittent drive component in a device for testing the corrosion resistance of protective clothing fabric using sensors.

[0041] In the diagram: 1. Operating table; 2. Receiving frame; 3. Digital image acquisition instrument; 4. Limit seat; 5. Clamping plate; 6. Rotary ring; 7. Gear set; 8. Support shaft; 9. Syringe; 10. Transmission cylinder; 11. First connecting pipe; 12. Second connecting pipe; 13. Storage tank; 14. Spherical seat; 15. Movable shaft; 16. Roller; 17. Connecting shaft; 1701. Limit groove; 18. Ball valve; 19. Connecting clamp; 1901. First ball bearing; 20. Insert 21. Connecting cylinder; 22. Inserting rod; 23. Moving block; 24. Spring; 25. Support plate; 26. Pumping shaft; 27. Slide groove; 28. Lifting cylinder; 29. ​​Piston; 20. Motor; 31. Drive shaft; 32. Bevel gear set; 33. First driven shaft; 34. Drive shaft; 35. Second driven shaft; 36. Intermittent transmission component; 37. First toothed belt; 38. Transmission shaft; 39. Third toothed belt; 30. Air inlet duct. Detailed Implementation

[0042] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0043] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0044] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0045] Please see Figures 1-9 In this embodiment of the invention, a device for testing the corrosion resistance of protective clothing fabric using sensors includes an operating table 1 and a limiting mechanism disposed on the operating table 1 for clamping and limiting the fabric. A digital image acquisition instrument 3 for detecting the fabric is installed on the operating table 1.

[0046] The operating table 1 is equipped with a receiving frame 2, and the receiving frame 2 is provided with a support shaft 8 that coincides with the axis of the limiting mechanism. A syringe 9 is installed at the eccentric position of the support shaft 8, and a pumping component is installed inside the syringe 9. The syringe 9 is connected to the inner side of the transfer cylinder 10 at the bottom end of the support shaft 8.

[0047] An infusion mechanism is installed on the receiving frame 2, and multiple infusion mechanisms are distributed along the circumference of the support shaft 8. Each infusion mechanism can communicate with the transfer cylinder 10. When the squeezing mechanism installed on the support shaft 8 rotates, the infusion mechanism can sequentially and equally deliver chemical agents of different concentrations to the transfer cylinder 10.

[0048] An intermittent drive unit is disposed on the operating table 1 and is connected to the conveying mechanism, the limiting mechanism and the pumping assembly respectively.

[0049] In this embodiment, after the protective clothing fabric is clamped and fixed by the limiting mechanism, the intermittent drive is activated. The intermittent drive first transmits power to the squeezing mechanism and the limiting mechanism, so that the infusion mechanism containing a low concentration of chemical agent delivers a certain amount of chemical agent into the transfer cylinder 10. After completing a single agent delivery, the delivery channel can be automatically blocked, thereby effectively avoiding the problem of excessive liquid or uneven concentration gradient that may be caused by continuous delivery. The limiting mechanism can drive the protective clothing fabric to rotate, which facilitates changing the drip position of the protective clothing fabric. After the infusion is completed in the transfer cylinder 10, the intermittent drive sequentially transmits power to the extraction component, which, together with the syringe 9, realizes the precise extraction of liquid in the transfer cylinder 10 and the spraying of the protective clothing fabric. Multiple chemical agent spraying tests of different concentrations can be performed sequentially, and the area sprayed in the previous spraying is switched to another position each time, effectively avoiding local excessive corrosion or area overlap caused by repeated testing, ensuring that the corrosion resistance performance of the entire fabric is comprehensively and uniformly evaluated.

[0050] The integration of the digital image acquisition device 3 with the computer system enables real-time dynamic monitoring of the protective clothing fabric surface and transmits the monitoring results to the computer for comparative analysis. Combined with digital image processing technology, it can quantitatively record the corrosion characteristics of the fabric such as color changes, blistering, and cracking under the action of different concentrations of chemicals, overcoming the subjective errors of traditional visual judgment and providing objective data support for the grading of the chemical resistance performance of protective clothing.

[0051] In one embodiment, sulfuric acid of different concentrations was used as the test reagent.

[0052] In another embodiment, sodium hydroxide of different concentrations was used as the test reagent.

[0053] As a further embodiment of the present invention, the limiting mechanism includes a limiting seat 4 rotatably mounted on the operating table 1, a clamping plate 5 hinged to the operating table 1, and a rotating ring 6 rotatably disposed on the clamping plate 5 and adapted to be inserted into the limiting seat 4.

[0054] Before testing the protective clothing fabric, in this embodiment, the control clamp 5 is separated from the limiting seat 4, and the protective clothing fabric is placed on the limiting seat 4. When the clamp 5 closes again, the protective clothing fabric is clamped between the rotating ring 6 and the limiting seat 4. When the limiting seat 4 rotates, it can drive the protective clothing fabric to deflect synchronously, thereby enabling the protective clothing fabric to switch positions after a single spray, effectively avoiding the test deviation caused by repeated local corrosion in traditional fixed testing devices.

[0055] As a further embodiment of the present invention, please refer to... Figure 7The pumping assembly includes a piston 27 slidably disposed within the syringe 9, and a lifting cylinder 26 is provided at the end of the piston 27. A second ball bearing is movably disposed on the inner wall of the lifting cylinder 26.

[0056] It also includes a pumping shaft 25 rotatably mounted on the end of the syringe 9. The pumping shaft 25 is coaxially arranged with the lifting cylinder 26. One end of the pumping shaft 25 is inserted into the lifting cylinder 26 and forms a groove 2501 that is adapted to slide with the second ball.

[0057] In this embodiment, the continuous rotational motion of the pumping shaft 25 is precisely converted into the reciprocating linear motion of the piston 27 through the cooperation of the slide groove 2501 and the second ball, realizing the seamless connection between the pumping and spraying actions. This design avoids the complexity of needing to independently control the two systems of the pumping pump and the nozzle in traditional devices, and significantly reduces equipment costs and maintenance difficulty.

[0058] Driven by the intermittent drive component, when the pumping shaft 25 rotates, the second ball bearing in the slide groove 2501 on it generates an inclined force, causing the piston 27 to rise along the axis of the syringe 9. During the rise, the pressure inside the syringe 9 increases, and the chemical agent in the transfer cylinder 10 is pumped into the syringe 9. When the second ball bearing moves to the highest point of its stroke, the syringe 9 stops pumping, thus fixing the volume of the liquid in a single pump. Afterward, the pumping shaft 25 continues to rotate, causing the piston 27 to move downward along the axis of the syringe 9. During the downward movement, the chemical agent in the syringe 9 is sprayed onto the surface of the protective clothing fabric. The amount of medicine drawn and sprayed each time is highly consistent, making the data from tests of different concentrations of chemical agents highly comparable.

[0059] It should be noted that the syringe 9 has an inlet and an outlet, and each inlet and outlet is equipped with a one-way valve.

[0060] As a further embodiment of the present invention, please refer to... Figure 5 and Figure 6 The extrusion mechanism includes a movable shaft 15 rotatably mounted on the support shaft 8. The movable shaft 15 is coaxially arranged with the support shaft 8. A rotating plate is sleeved on the movable shaft 15. A roller 16 is rotatably mounted on the end of the rotating plate away from the movable shaft 15.

[0061] The infusion mechanism includes a storage tank 13, which is connected to the inner side of the transfer cylinder 10 via a first connecting pipe 11. A spherical seat 14 is formed on the first connecting pipe 11, and a ball valve 18 is rotatably installed inside the spherical seat 14. A through hole is formed on the ball valve 18 that can pass through the axis. A connecting shaft 17 that can pass through the spherical seat 14 is connected to the ball valve 18, and a limit groove 1701 is formed on the connecting shaft 17.

[0062] It also includes an opening and closing control component installed on the support shaft 8, with multiple components arranged along the circumference of the support shaft 8 and connected to the connecting shaft 17.

[0063] The opening and closing control component includes a plug-in cylinder 20 mounted on the support shaft 8. A plug-in rod 21 is slidably inserted into one end of the plug-in cylinder 20. A moving block 22 is provided on the end of the plug-in rod 21 away from the plug-in cylinder 20. The pressure-bearing surface of the moving block 22 is arranged in an arc shape. A connecting hoop 19 is sleeved on the plug-in rod 21. The end of the connecting hoop 19 away from the plug-in rod 21 is slidably sleeved on the connecting shaft 17. A first ball bearing 1901 is movably arranged on the inner wall of the connecting hoop 19 and is slidably adapted to the limiting groove 1701.

[0064] It also includes a spring 23, which is disposed inside the plug tube 20. One end of the plug tube 20 abuts against the inner end of the plug tube 20, and the other end abuts against the plug rod 21.

[0065] Preferably, the bottom of the transfer cylinder 10 is connected to a second connecting tube 12, and the end of the second connecting tube 12 away from the transfer cylinder 10 is connected to the syringe 9.

[0066] In this embodiment, a support plate 24 is provided on the support shaft 8, and opening and closing control components are respectively provided on the support plate 24.

[0067] Preferably, the limiting groove 1701 is divided into a first straight groove, an inclined groove and a second straight groove. In the initial state, the first ball 1901 is located in the first straight groove. When the moving block 22 is subjected to a slight external force and undergoes a slight displacement, the first ball 1901 slides in the first straight groove. The first ball 1901 will not generate a tangential component force, so it will not push the connecting shaft 17 to rotate, thereby avoiding the accidental opening of the conveying channel.

[0068] Driven by the intermittent drive component, when the movable shaft 15 rotates, the roller 16 on it oscillates in a circular motion. During the oscillation, the roller 16 contacts one of the moving blocks 22, and the roller 16 squeezes the moving block 22, causing the moving block 22 to move out of position. This causes the insertion rod 21 to move towards the insertion cylinder 20, and the spring 23 is further compressed to store elastic potential energy. When the insertion rod 21 moves along the axial direction of the insertion cylinder 20, it causes the connecting clamp 19 to move synchronously. At this time, the first ball 1901 on it squeezes the limiting groove 1701. After moving a certain distance in the first straight groove, the first ball 1901 slides into the inclined groove. At this time, the first ball 1901 generates an inclined force on the inclined groove, causing the connecting... When shaft 17 rotates, ball valve 18 deflects, opening the delivery channel for a period of time. Once the delivery channel is fully open, the first ball 1901 moves relative to the second linear groove. After the subsequent roller 16 deflects and separates from the moving block 22, the plug rod 21, under the elastic action of spring 23, drives the moving block 22 to reset, and ball valve 18 can reverse again to block the delivery channel. This achieves timed opening and closing of the delivery channel, ensuring that only a predetermined amount of chemical agent is delivered to the transfer cylinder 10 each time. It can precisely control the start and end times of agent delivery, avoiding problems such as excessive agent or uneven concentration gradient that may be caused by continuous delivery, and ensuring that different concentrations of agents are delivered sequentially without interference.

[0069] As a further embodiment of the present invention, please refer to... Figure 8 and Figure 9 The intermittent drive component includes a drive shaft 29 rotatably mounted on the operating table 1. One end of the drive shaft 29 is driven to rotate by a motor 28 mounted on the operating table 1, and the other end is connected to the drive shaft 32 rotatably mounted on the operating table 1 via a bevel gear set 30.

[0070] It also includes a first driven shaft 31 and a second driven shaft 33 rotatably mounted on the operating table 1, wherein the driving shaft 32 transmits power to the first driven shaft 31 and the second driven shaft 33 respectively through an intermittent transmission member 34.

[0071] The first driven shaft 31 is connected to the transmission shaft 36 rotatably mounted on the operating table 1 via the first toothed belt 35. One end of the transmission shaft 36 is connected to the limiting seat 4 via the gear set 7, and the other end is connected to the movable shaft 15 via the second toothed belt 37.

[0072] The second driven shaft 33 is connected to the pumping shaft 25 via a third toothed belt 38.

[0073] Preferably, the operating table 1 is provided with an air inlet duct 39, which is located at the bottom of the limiting seat 4, and hot and cold air can be alternately input into the air inlet duct 39.

[0074] In this embodiment, the fabric is subjected to alternating hot and cold environments during the test, which can simulate complex corrosion conditions closer to the real world. Compared with a single constant temperature test, it can more realistically and rigorously evaluate the corrosion resistance and overall environmental adaptability of the material in complex environments. The specific control method of alternating hot and cold environments is existing technology, and this invention will not provide further explanation.

[0075] The intermittent transmission component 34 adopts a Maltese cross mechanism transmission, which enables the first driven shaft 31 and the second driven shaft 33 to rotate intermittently by a certain angle while the drive shaft 32 rotates one revolution. The specific Maltese cross mechanism transmission ratio is existing technology and will not be explained further in this invention.

[0076] In this embodiment, after the protective clothing fabric is clamped and fixed, the motor 28 is started. The output shaft of the motor 28 is fixed to the drive shaft 29, so that when the output shaft rotates, it drives the drive shaft 29 to rotate synchronously. With the cooperation of the intermittent transmission component 34, the requirement that the first driven shaft 31 and the second driven shaft 33 can rotate intermittently is achieved.

[0077] When the power is transmitted to the first driven shaft 31, the first driven shaft 31 rotates. Through the speed-increasing transmission of the first toothed belt 35, the number of rotations of the transmission shaft 36 is amplified. With the cooperation of the second toothed belt 37 and the gear set 7, the number of rotations of the movable shaft 15 and the limiting seat 4 are unified, so that the delivery of the medicine and the rotation of the fabric do not interfere with each other. This ensures that the position of the fabric can be accurately switched after each spraying, and that the quantitative infusion of all chemical agents of different concentrations is completed when the movable shaft 15 rotates one revolution.

[0078] When power is transmitted to the second driven shaft 33, the second driven shaft 33 rotates. At this time, through the transmission of the third toothed belt 38, the number of rotations of the extraction shaft 25 can be amplified, so that during the rotation of the second driven shaft 33, the syringe 9 can accurately extract and spray the medicine in the central rotating cylinder 10.

[0079] A method for testing the corrosion resistance of protective clothing fabric using a sensor, employing the apparatus described in any one of the above-mentioned methods, includes the following steps:

[0080] Step 1: After the limiting mechanism clamps the protective clothing fabric, the intermittent drive component is activated. At this time, the driving limiting mechanism can drive the protective clothing fabric to rotate, and the squeezing mechanism can squeeze the opening and closing control component.

[0081] Step 2: When the opening and closing control component is pressed, it makes way for the rotation of the extrusion mechanism and stores elastic potential energy, thereby driving the ball valve 18 to deflect. After a certain period of time, the ball valve 18 releases the blockage of the first connecting pipe 11, and the chemical agent in the storage tank 13 is transported to the transfer cylinder 10. After the extrusion mechanism separates from the opening and closing control component, it stops automatically. Under the stored elasticity, the opening and closing control component resets and the ball valve 18 can perform the sealing action again.

[0082] Step 3: Under the control of the intermittent drive component, the pumping component can perform pumping work, so that the liquid in the transfer cylinder 10 is pumped into the syringe 9 and then sprayed onto the protective clothing fabric. The surface of the protective clothing fabric is monitored by the digital image acquisition instrument 3 and the monitoring results are transmitted to the computer for comparative analysis.

[0083] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0084] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An apparatus for testing the corrosion resistance of protective clothing fabric using sensors, comprising an operating table (1) and a limiting mechanism disposed on the operating table (1) for clamping and limiting the fabric, wherein a digital image acquisition instrument (3) for detecting the fabric is installed on the operating table (1). Its characteristics are: The operating table (1) is equipped with a receiving frame (2), and the receiving frame (2) is provided with a support shaft (8) that coincides with the axis of the limiting mechanism. A syringe (9) is installed at the eccentric position of the support shaft (8), and a pumping component is installed inside the syringe (9). The syringe (9) is connected to the inner side of the transfer cylinder (10) at the bottom of the support shaft (8). The infusion mechanism is installed on the receiving frame (2), and multiple infusion mechanisms are distributed around the circumference of the support shaft (8). They can communicate with the transfer cylinder (10) respectively. When the squeezing mechanism installed on the support shaft (8) rotates, the infusion mechanism can sequentially and equally deliver chemical agents of different concentrations to the transfer cylinder (10). An intermittent drive unit is disposed on the operating table (1) and is respectively connected to the conveying mechanism, the limiting mechanism and the pumping component.

2. The device for testing the corrosion resistance of protective clothing fabric using sensors according to claim 1, characterized in that, The limiting mechanism includes a limiting seat (4) rotatably mounted on the operating table (1), a clamping plate (5) is hinged on the operating table (1), and a rotating ring (6) that is adapted to be inserted into the limiting seat (4) is rotatably mounted on the clamping plate (5).

3. The device for testing the corrosion resistance of protective clothing fabric using sensors according to claim 2, characterized in that, The pumping assembly includes a piston (27) slidably disposed within the syringe (9), and a lifting cylinder (26) is provided at the end of the piston (27), with a second ball bearing movably disposed on the inner wall of the lifting cylinder (26). It also includes a pumping shaft (25) rotatably mounted on the end of the syringe (9), the pumping shaft (25) being coaxially arranged with the lifting cylinder (26), one end of the pumping shaft (25) being inserted into the lifting cylinder (26) and forming a groove (2501) that is adapted to slide with the second ball.

4. The device for testing the corrosion resistance of protective clothing fabric using sensors according to claim 3, characterized in that, The extrusion mechanism includes a movable shaft (15) rotatably mounted on the support shaft (8). The movable shaft (15) is coaxially arranged with the support shaft (8). A rotating plate is sleeved on the movable shaft (15). A roller (16) is rotatably mounted on the end of the rotating plate away from the movable shaft (15).

5. The device for testing the corrosion resistance of protective clothing fabric using sensors according to claim 4, characterized in that, The infusion mechanism includes a storage tank (13), which is connected to the inner side of the transfer cylinder (10) through a first connecting pipe (11). A spherical seat (14) is formed on the first connecting pipe (11), and a ball valve (18) is rotatably installed inside the spherical seat (14). A through hole is formed on the ball valve (18) that can pass through the axis. A connecting shaft (17) that can pass through the spherical seat (14) is connected to the ball valve (18), and a limit groove (1701) is formed on the connecting shaft (17). It also includes an opening and closing control component installed on the support shaft (8), with multiple components arranged along the circumference of the support shaft (8) and connected to the connecting shaft (17).

6. The device for testing the corrosion resistance of protective clothing fabric using sensors according to claim 5, characterized in that, The opening and closing control component includes a plug-in cylinder (20) installed on the support shaft (8). A plug-in rod (21) is slidably inserted into one end of the plug-in cylinder (20). A moving block (22) is provided on the end of the plug-in rod (21) away from the plug-in cylinder (20). The pressure surface of the moving block (22) is arranged in an arc shape. A connecting hoop (19) is sleeved on the plug-in rod (21). The end of the connecting hoop (19) away from the plug-in rod (21) is slidably sleeved on the connecting shaft (17). A first ball (1901) is movably arranged on the inner wall of the connecting hoop (19) and is slidably adapted to the limiting groove (1701). It also includes a spring (23), which is disposed inside the plug tube (20). One end of the plug tube (20) abuts against the inner end of the plug tube (20), and the other end abuts against the plug rod (21).

7. The device for testing the corrosion resistance of protective clothing fabric using sensors according to claim 4, characterized in that, The intermittent drive includes a drive shaft (29) rotatably mounted on the operating table (1). One end of the drive shaft (29) is driven to rotate by a motor (28) mounted on the operating table (1), and the other end is connected to the drive shaft (32) rotatably mounted on the operating table (1) via a bevel gear set (30). It also includes a first driven shaft (31) and a second driven shaft (33) rotatably mounted on the operating table (1), wherein the driving shaft (32) transmits power to the first driven shaft (31) and the second driven shaft (33) respectively through an intermittent transmission member (34).

8. The apparatus for testing the corrosion resistance of protective clothing fabric using sensors according to claim 7, characterized in that, The first driven shaft (31) is connected to the transmission shaft (36) rotatably mounted on the operating table (1) via the first toothed belt (35). One end of the transmission shaft (36) is connected to the limiting seat (4) via the gear set (7), and the other end is connected to the movable shaft (15) via the second toothed belt (37). The second driven shaft (33) is connected to the pumping shaft (25) via a third toothed belt (38).

9. The device for testing the corrosion resistance of protective clothing fabric using sensors according to claim 2, characterized in that, An air inlet duct (39) is provided on the operating table (1). The air inlet duct (39) is located at the bottom of the limiting seat (4). Hot and cold air can be alternately input into the air inlet duct (39).

10. A method for testing the corrosion resistance of protective clothing fabric using sensors, characterized in that, The apparatus for testing the corrosion resistance of protective clothing fabric using the sensor described in any one of claims 1-9 comprises the following steps: Step 1: After the limiting mechanism clamps the protective clothing fabric, the intermittent drive component is activated. At this time, the driving limiting mechanism can drive the protective clothing fabric to rotate, and the squeezing mechanism can squeeze the opening and closing control component. Step 2: When the opening and closing control component is pressed, it makes way for the rotation of the extrusion mechanism and stores elastic potential energy, thereby driving the ball valve (18) to deflect. After a certain period of time, the ball valve (18) releases the blockage of the first connecting pipe (11), and the chemical agent in the storage tank (13) is transported to the transfer cylinder (10). The extrusion mechanism automatically stops after separating from the opening and closing control component. Under the stored elasticity, the opening and closing control component resets and the ball valve (18) can perform the blocking action again. Step 3: Under the control of the intermittent drive, the pumping component can perform pumping work, so that the liquid in the transfer cylinder (10) is pumped into the syringe (9) and then sprayed onto the protective clothing fabric. The surface of the protective clothing fabric is monitored by the digital image acquisition instrument (3) and the monitoring results are transmitted to the computer for comparative analysis.

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